CN108366355B - Data transmission method, data transmission terminal and base station - Google Patents

Data transmission method, data transmission terminal and base station Download PDF

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Publication number
CN108366355B
CN108366355B CN201710062838.7A CN201710062838A CN108366355B CN 108366355 B CN108366355 B CN 108366355B CN 201710062838 A CN201710062838 A CN 201710062838A CN 108366355 B CN108366355 B CN 108366355B
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information
remote
relay
interface
bearer
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CN108366355A (en
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黄莹
陈琳
陈玉芹
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2017/106270 priority patent/WO2018137364A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a data transmission method, a data transmission terminal and a base station, wherein the method comprises the following steps: the remote UE acquires the first bearing information, the remote UE sends a data packet to the relay UE according to the first bearing information, and/or the relay UE acquires the second bearing information, and the relay UE sends the data packet to the remote UE or the base station according to the second bearing information, so that the problem that the remote UE or the relay UE cannot normally send data when the remote UE is connected with the relay UE through a non-3 GPP access technology in the related art is solved.

Description

Data transmission method, data transmission terminal and base station
Technical Field
The present invention relates to the field of communications, and in particular, to a data transmission method, a data transmission terminal, and a base station.
Background
With the development of wireless multimedia services, there is an increasing demand for high data rates and user experiences, thereby placing higher demands on the system capacity and coverage of conventional cellular networks. On the other hand, the popularity of social networking, close-range data sharing, local advertising, etc. applications has led to an increasing demand for people to learn about and communicate with people or things of interest nearby (Proximity Services ). Conventional cell-based cellular networks have significant limitations in terms of high data rates and support for proximity services, and in the context of this demand, D2D (Device-to-Device) technology has emerged, representing a new direction of future communication technology development. The application of the D2D technology can reduce the burden of a cellular network, reduce the battery power consumption of user equipment, improve the data rate, improve the robustness of network infrastructure and well meet the requirements of the high data rate service and the proximity service.
The D2D technology may operate in an licensed or unlicensed frequency band, allowing a plurality of D2D-capable User equipments (i.e., D2D User equipments, D2D UEs to directly discover/directly communicate with or without a network infrastructure the D2D technology generally includes D2D discovery technology and D2D communication technology.
Fig. 1 is a schematic diagram of data interaction in the related art, and as shown in fig. 1, there are three main D2D application scenarios of R12 and R13:
1) UE1 and UE2 interact with data under the coverage of the cellular network, and the user plane data does not go through the network infrastructure, as in mode 1 of fig. 1;
2) UE relay transmission in weak/no coverage areas, such as mode 2 in fig. 1, allows UE4 with poor signal quality to communicate with the network through UE3 with network coverage nearby, which can help operators to extend coverage and increase capacity;
3) In the event of an earthquake or emergency, the cellular network is not able to function properly, allowing direct communication between devices, such as mode 3, UE5, UE6 and UE7 in fig. 1, with one or more hops of data communication without going through the network infrastructure at the control plane and user plane.
In the above R13D 2D scenarios 2) and 3), the D2D UE may act as a relay node, enabling cellular communication between cellular network coverage edges or remote D2D UEs outside the coverage via the relay node UE and D2D communication between D2D UEs via the relay node UE. In R13D 2D, D2D UE (also referred to as relay UE) serving as a relay node forwards data according to information such as a target IP address/port number in layer 3 (i.e. IP layer), while in R14D 2D technology, considering that a wearable device (e.g. MTE or NB-IoT device) accesses a network scenario through the relay UE, in order to enable an operator (i.e. a core network element MME, etc. and a base station) to more effectively manage the wearable device (i.e. a remote UE), it is required that the relay UE forwards data in layer 2, and it is required to consider that a non-3GPP access technology (e.g. WIFI or bluetooth) is adopted between the remote UE and the relay UE, but the prior art does not provide a bearer configuration and mapping method in which the remote UE is connected to the relay UE through a non-3GPP access technology and adopts a layer 2 data routing forwarding mode, so that the layer 2 relay function cannot be executed correctly.
Therefore, no solution has been proposed for the problem that the remote UE or the relay UE cannot normally transmit data when the remote UE is connected to the relay UE through the non-3 GPP access technology in the related art.
Disclosure of Invention
The embodiment of the invention provides a data transmission method, a data transmission terminal and a base station, which at least solve the problem that remote UE or relay UE cannot normally transmit data when the remote UE is connected with the relay UE through a non-3 GPP access technology in the related technology.
According to an embodiment of the present invention, there is provided a data transmission method including:
the remote UE acquires first bearer information;
and the remote UE sends a data packet to the relay UE according to the first bearer information.
Optionally, the remote UE acquiring the first bearer information includes at least one of:
the remote UE acquires the first bearing information in a preconfigured mode;
the remote UE acquires the first bearing information from a base station through a system message;
the remote UE acquires the first bearer information from a base station through Radio Resource Control (RRC) special signaling;
and the remote UE acquires the first bearing information from a core network element.
Optionally, the sending, by the remote UE, the data packet to the relay UE according to the first bearer information includes:
And the remote UE determines the user priority of the data packet according to the first bearing information and sends the user priority to the relay UE through the WLAN.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the QoS parameter for WLAN is user priority UP information.
Optionally, the sending, by the remote UE, a data packet to the relay UE according to the first bearer information includes at least one of:
the remote UE determines the user priority corresponding to the data packet according to the QCI value of the Uu bearer of the remote UE to which the data packet belongs and mapping table information between the Uu interface QCI and QoS parameters for WLAN, wherein the QoS parameters for WLAN comprise the user priority;
when the remote UE performs WLAN MAC layer data encapsulation, encapsulating the user priority in an MAC header;
the remote UE sends a data packet to the relay UE over the WLAN.
Optionally, the sending, by the remote UE, the data packet to the relay UE according to the first bearer information includes:
The remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN, which corresponds to the Uu interface bearer of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;
and when the remote UE performs WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.
According to another embodiment of the present invention, there is provided a data transmission method including:
the relay UE acquires second bearer information;
and the relay UE transmits a data packet according to the second bearing information.
Optionally, the relay UE acquiring the second bearer information includes at least one of:
the relay UE acquires the second bearing information in a preconfigured mode;
the relay UE acquires the second bearer information from a base station through a system message or a Radio Resource Control (RRC) special signaling;
and the relay UE acquires the second bearing information from a core network element.
Optionally, the relay UE sending a data packet according to the second bearer information includes at least one of:
the relay UE sends the data packet to a remote UE according to the second bearing information;
and the relay UE sends the data packet to a base station according to the second bearing information.
Optionally, the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes: the relay UE determines the user priority of the data packet according to the second bearing information and sends the user priority to the remote UE through WLAN; and/or
The relay UE sending the data packet to the base station according to the second bearer information includes: and the relay UE determines a Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and sends the Uu interface bearer of the relay UE to the base station, wherein the data packet is received by the relay UE from the remote UE.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
Mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
mapping table information between Uu interface QCI and QoS parameters for WLAN.
Optionally, the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes:
the relay UE determines a QoS parameter value for the WLAN corresponding to the data packet according to Uu bearing information of the remote UE or Uu bearing information of the relay UE corresponding to the received data packet of the remote UE and mapping table information between a Uu interface QCI and the QoS parameter for the WLAN;
and the relay UE encapsulates the QoS parameter value for WLAN in a MAC header and sends the QoS parameter value to the remote UE when the WLAN MAC layer is encapsulated.
Optionally, before the relay UE sends the data packet to the remote UE according to the second bearer information, the method further includes at least one of:
the relay UE obtains Uu bearing information of the remote UE by analyzing a data packet of the remote UE received from a base station;
And the relay UE receives Uu bearer information of the remote UE from the base station through RRC special signaling.
Optionally, the relay UE sending the data packet to the base station according to the second bearer information includes one of:
the relay UE analyzes QoS parameters for WLAN carried in a Media Access Control (MAC) header of the data packet, determines a QCI value corresponding to the data packet according to mapping table information between the QoS parameters for WLAN and a Uu interface (QCI), and sends the data packet to the base station through a Uu bearer of the relay UE with the QCI value;
the relay UE analyzes Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and the data packet is sent to the base station through the Uu bearing of the relay UE with the QCI value;
the relay UE determines a Uu interface bearer of a remote UE to which the received data packet belongs, determines QCI information of the bearer to which the received data packet belongs according to Uu interface bearer information of the remote UE obtained from a base station, and sends the data packet to the base station through the Uu bearer of the relay UE with the QCI value;
The relay UE determines a Uu interface bearer of a remote UE to which the received data packet belongs, determines a Uu interface bearer of the relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and sends the data packet to the base station through the Uu interface bearer of the relay UE;
the relay UE analyzes Uu interface bearing information of a remote UE in the received data packet, determines Uu interface bearing of the relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and the Uu interface bearing information of the relay UE, and sends the data packet to the base station through the Uu interface bearing of the relay UE.
According to another embodiment of the present invention, there is provided a data transmission method including:
and the base station sends bearing information to the UE, wherein the bearing information is used for sending a data packet to the UE.
Optionally, the sending, by the base station, bearer information to the UE includes:
the base station sends first bearing information to a remote UE, wherein the first bearing information is used for sending a data packet to the remote UE;
and the base station sends second bearing information to the relay UE, wherein the second bearing information is used for sending the data packet by the relay UE.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the QoS parameter for WLAN is user priority UP information.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
Mapping table information between Uu interface QCI and QoS parameters for WLAN.
According to another embodiment of the present invention, there is provided a data transmission terminal applied to a remote UE, including:
the first acquisition module is used for acquiring first bearing information;
and the first sending module is used for sending the data packet to the relay UE according to the first bearing information.
Optionally, the first acquisition module includes at least one of:
the first acquisition unit is used for acquiring the first bearing information in a preconfigured mode;
a second acquiring unit, configured to acquire the first bearer information from a base station through a system message;
a third obtaining unit, configured to obtain, by using the remote UE, the first bearer information from a base station through radio resource control RRC dedicated signaling;
a fourth obtaining unit, configured to obtain, by using the remote UE, the first bearer information from a core network element.
Optionally, the first sending module is further configured to
And determining the user priority of the data packet according to the first bearing information, and sending the data packet to the relay UE through the WLAN.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
The Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the QoS parameter for WLAN is user priority UP information.
Optionally, the first sending module is further configured to
Determining a user priority corresponding to the data packet according to a QCI value of a Uu bearer of the far-end UE to which the data packet belongs and mapping table information between the Uu interface QCI and QoS parameters for WLAN, wherein the QoS parameters for WLAN comprise the user priority;
when the WLAN MAC layer data is packaged, the user priority is packaged in an MAC header;
and transmitting the data packet to the relay UE through the WLAN.
Optionally, the first sending module is further configured to
The remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN, which corresponds to the Uu interface bearer of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;
and when the remote UE performs WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.
According to another embodiment of the present invention, there is provided a data transmission terminal applied to a relay UE, including:
The second acquisition module is used for acquiring second bearing information;
and the second sending module is used for sending the data packet according to the second bearing information.
Optionally, the second acquisition module includes at least one of:
a fifth obtaining unit, configured to obtain the second bearer information in a preconfigured manner;
a sixth acquiring unit, configured to acquire the second bearer information from the base station through a system message or radio resource control RRC dedicated signaling;
a seventh obtaining unit, configured to obtain the second bearer information from a core network element.
Optionally, the second sending module includes at least one of:
the first sending unit is used for sending the data packet to the remote UE according to the second bearing information;
and the second sending unit is used for sending the data packet to the base station according to the second bearing information.
Optionally, the first sending unit is further configured to determine a user priority of the data packet according to the second bearer information, and send the user priority to the remote UE through WLAN;
the second sending unit is further configured to determine a Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and send the data packet to the base station through the Uu interface bearer of the relay UE, where the data packet is received by the relay UE from the remote UE.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
mapping table information between Uu interface QCI and QoS parameters for WLAN.
Optionally, the first sending unit is further configured to
Determining a QoS parameter value for the WLAN corresponding to the data packet according to Uu bearing information of the remote UE or Uu bearing information of a relay UE corresponding to the received data packet of the remote UE and mapping table information between a Uu interface QCI and the QoS parameter for the WLAN;
And when the WLAN MAC layer is encapsulated, the QoS parameter value for the WLAN is encapsulated in an MAC header and is sent to the remote UE.
Optionally, the apparatus further comprises at least one of:
the analysis module is used for obtaining Uu bearing information of the remote UE by analyzing the data packet of the remote UE received from the base station;
and the receiving module is used for receiving Uu bearing information of the remote UE from the base station through RRC special signaling.
Optionally, the second sending unit is further configured to
Analyzing QoS parameter information for WLAN carried in a Media Access Control (MAC) header of the data packet, determining a QCI value corresponding to the data packet according to mapping table information between the QoS parameter for WLAN and a Uu interface (QCI), and sending the data packet to the base station through the Uu bearer of the relay UE of the QCI value; or,
analyzing Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and sending the data packet to the base station through the Uu bearing of the relay UE with the QCI value; or,
determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining QCI information of a bearer to which the received data packet belongs according to Uu interface bearer information of the remote UE obtained from a base station, and transmitting the data packet to the base station through the Uu bearer of the relay UE of the QCI value; or,
Determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining a Uu interface bearer of a relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and transmitting the data packet to the base station through the Uu interface bearer of the relay UE; or,
analyzing Uu interface bearing information of a remote UE in a received data packet, determining Uu interface bearing of a relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and Uu interface bearing information of the relay UE, and sending the data packet to the base station through the Uu interface bearing of the relay UE.
According to another embodiment of the present invention, there is provided a base station including:
a third sending module, configured to send first bearer information to a remote UE, where the first bearer information is used for the remote UE to send a data packet;
and the fourth sending module is used for sending second bearing information to the relay UE, wherein the second bearing information is used for sending the data packet by the relay UE.
Optionally, the first bearer information includes at least one of:
Mapping table information between Uu interface scale values QCI and quality of service QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
The optional QoS parameter for WLAN is user priority UP information.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
Mapping table information between Uu interface QCI and QoS parameters for WLAN.
According to the invention, the remote UE acquires the first bearing information, the remote UE sends the data packet to the relay UE according to the first bearing information, and/or the relay UE acquires the second bearing information, the relay UE sends the data packet to the remote UE or the base station according to the second bearing information, and the data is sent through the bearing information, so that the problem that the remote UE or the relay UE cannot normally send the data when the remote UE is connected with the relay UE through a non-3 GPP access technology in the related art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of data interactions in accordance with the related art;
FIG. 2 is a flowchart I of a data transmission method according to an embodiment of the present invention;
FIG. 3 is a second flowchart of a data transmission method according to an embodiment of the present invention;
fig. 4 is a block diagram one of a data transmission terminal according to an embodiment of the present invention;
fig. 5 is a block diagram one of a data transmission terminal according to a preferred embodiment of the present invention;
Fig. 6 is a block diagram two of a data transmission terminal according to an embodiment of the present invention;
fig. 7 is a block diagram two of a data transmission terminal according to a preferred embodiment of the present invention;
fig. 8 is a block diagram III of a data transmission terminal according to a preferred embodiment of the present invention;
fig. 9 is a block diagram of a base station according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
Example 1
In this embodiment, an uplink control information transmission method is provided, fig. 2 is a flowchart of a data transmission method according to an embodiment of the present invention, and as shown in fig. 2, the flowchart includes the following steps:
step S202, a remote UE acquires first bearer information;
in step S204, the remote UE sends a data packet to the relay UE according to the first bearer information.
Optionally, the remote UE acquiring the first bearer information includes at least one of:
The remote UE acquires the first bearing information in a preconfigured mode;
the remote UE acquires the first bearing information from a base station through a system message;
the remote UE acquires the first bearer information from a base station through Radio Resource Control (RRC) special signaling;
and the remote UE acquires the first bearing information from a core network element.
Optionally, the sending, by the remote UE, the data packet to the relay UE according to the first bearer information includes:
and the remote UE determines the user priority of the data packet according to the first bearing information and sends the user priority to the relay UE through the WLAN.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the QoS parameter for WLAN is user priority UP information.
Optionally, the sending, by the remote UE, a data packet to the relay UE according to the first bearer information includes at least one of:
the remote UE determines the user priority corresponding to the data packet according to the QCI value of the Uu bearer of the remote UE to which the data packet belongs and mapping table information between the Uu interface QCI and QoS parameters for WLAN, wherein the QoS parameters for WLAN comprise the user priority;
When the remote UE performs WLAN MAC layer data encapsulation, encapsulating the user priority in an MAC header;
the remote UE sends a data packet to the relay UE over the WLAN.
Optionally, the sending, by the remote UE, the data packet to the relay UE according to the first bearer information includes:
the remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN, which corresponds to the Uu interface bearer of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;
and when the remote UE performs WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.
According to another embodiment of the present invention, there is provided a data transmission method, and fig. 3 is a flowchart of a data transmission method according to an embodiment of the present invention, as shown in fig. 3, the flowchart including the steps of:
step S302, the relay UE acquires second bearer information;
step S304, the relay UE sends a data packet according to the second bearing information.
Optionally, the relay UE acquiring the second bearer information includes at least one of:
the relay UE acquires the second bearing information in a preconfigured mode;
The relay UE acquires the second bearer information from a base station through a system message or a Radio Resource Control (RRC) special signaling;
and the relay UE acquires the second bearing information from a core network element.
Optionally, the relay UE sending a data packet according to the second bearer information includes at least one of:
the relay UE sends the data packet to a remote UE according to the second bearing information;
and the relay UE sends the data packet to a base station according to the second bearing information.
Optionally, the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes: the relay UE determines the user priority of the data packet according to the second bearing information and sends the user priority to the remote UE through WLAN; and/or
The relay UE sending the data packet to the base station according to the second bearer information includes: and the relay UE determines a Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and sends the Uu interface bearer of the relay UE to the base station, wherein the data packet is received by the relay UE from the remote UE.
Optionally, the second bearer information includes at least one of:
Mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
mapping table information between Uu interface QCI and QoS parameters for WLAN.
Optionally, the sending, by the relay UE, the data packet to the remote UE according to the second bearer information includes:
the relay UE determines a QoS parameter value for the WLAN corresponding to the data packet according to Uu bearing information of the remote UE or Uu bearing information of the relay UE corresponding to the received data packet of the remote UE and mapping table information between a Uu interface QCI and the QoS parameter for the WLAN;
And the relay UE encapsulates the QoS parameter value for WLAN in a MAC header and sends the QoS parameter value to the remote UE when the WLAN MAC layer is encapsulated.
Optionally, before the relay UE sends the data packet to the remote UE according to the second bearer information, the method further includes at least one of:
the relay UE obtains Uu bearing information of the remote UE by analyzing a data packet of the remote UE received from a base station;
and the relay UE receives Uu bearer information of the remote UE from the base station through RRC special signaling.
Optionally, the relay UE sending the data packet to the base station according to the second bearer information includes one of:
the relay UE analyzes QoS parameters for WLAN carried in a Media Access Control (MAC) header of the data packet, determines a QCI value corresponding to the data packet according to mapping table information between the QoS parameters for WLAN and a Uu interface (QCI), and sends the data packet to the base station through a Uu bearer of the relay UE with the QCI value;
the relay UE analyzes Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and the data packet is sent to the base station through the Uu bearing of the relay UE with the QCI value;
The relay UE determines a Uu interface bearer of a remote UE to which the received data packet belongs, determines QCI information of the bearer to which the received data packet belongs according to Uu interface bearer information of the remote UE obtained from a base station, and sends the data packet to the base station through the Uu bearer of the relay UE with the QCI value;
the relay UE determines a Uu interface bearer of a remote UE to which the received data packet belongs, determines a Uu interface bearer of the relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and sends the data packet to the base station through the Uu interface bearer of the relay UE;
the relay UE analyzes Uu interface bearing information of a remote UE in the received data packet, determines Uu interface bearing of the relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and the Uu interface bearing information of the relay UE, and sends the data packet to the base station through the Uu interface bearing of the relay UE.
According to another embodiment of the present invention, there is provided a data transmission method including:
the base station sends first bearing information to a remote UE, wherein the first bearing information is used for sending a data packet to the remote UE; and/or the number of the groups of groups,
And the base station sends second bearing information to the relay UE, wherein the second bearing information is used for sending the data packet by the relay UE.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the QoS parameter for WLAN is user priority UP information.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
Mapping table information between Uu interface QCI and QoS parameters for WLAN.
In an embodiment of the present invention, there is also provided a computer storage medium, which may store execution instructions for performing the implementation steps of the data transmission method in the above embodiment.
According to another embodiment of the present invention, there is provided a data transmission terminal, applied to a remote UE, and fig. 4 is a block diagram one of the data transmission terminal according to an embodiment of the present invention, as shown in fig. 4, including:
a first obtaining module 42, configured to obtain first bearer information;
and a first sending module 44, configured to send a data packet to the relay UE according to the first bearer information.
Fig. 5 is a block diagram of a data transmission terminal according to a preferred embodiment of the present invention, and as shown in fig. 5, the first acquisition module 42 includes at least one of the following:
a first obtaining unit 52, configured to obtain the first bearer information in a preconfigured manner;
a second obtaining unit 54, configured to obtain the first bearer information from the base station through a system message or radio resource control RRC dedicated signaling;
a third obtaining unit 56, configured to obtain the first bearer information from a base station by using radio resource control RRC dedicated signaling by the remote UE;
A fourth obtaining unit 58, configured to obtain the first bearer information from a core network element by using the remote UE.
Optionally, the first sending module 44 is further configured to
And determining the user priority of the data packet according to the first bearing information, and sending the data packet to the relay UE through the WLAN.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the QoS parameter for WLAN is user priority UP information.
Optionally, the first sending module 44 is further configured to
Determining a user priority corresponding to the data packet according to a QCI value of a Uu bearer of the far-end UE to which the data packet belongs and mapping table information between the Uu interface QCI and QoS parameters for WLAN, wherein the QoS parameters for WLAN comprise the user priority;
when the WLAN MAC layer data is packaged, the user priority is packaged in an MAC header;
and transmitting the data packet to the relay UE through the WLAN.
Optionally, the first sending module 44 is further configured to
The remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN, which corresponds to the Uu interface bearer of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;
And when the remote UE performs WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.
According to another embodiment of the present invention, there is provided a data transmission terminal applied to a relay UE, and fig. 6 is a block diagram two of the data transmission terminal according to an embodiment of the present invention, as shown in fig. 6, including:
a second acquiring module 62, configured to acquire second bearer information;
and a second sending module 64, configured to send a data packet according to the second bearer information.
Fig. 7 is a block diagram two of a data transmission terminal according to a preferred embodiment of the present invention, and as shown in fig. 7, the second acquisition module 62 includes at least one of the following:
a fifth obtaining unit 72, configured to obtain the second bearer information in a preconfigured manner;
a sixth obtaining unit 74, configured to obtain the second bearer information from the base station through a system message or radio resource control RRC dedicated signaling;
a seventh obtaining unit 76 is configured to obtain the second bearer information from a core network element.
Fig. 8 is a block diagram three of a data transmission terminal according to a preferred embodiment of the present invention, and as shown in fig. 8, the second transmission module 64 includes at least one of the following:
a first sending unit 82, configured to send the data packet to a remote UE according to the second bearer information;
And a second sending unit 84, configured to send the data packet to a base station according to the second bearer information.
Optionally, the first sending unit 82 is further configured to determine a user priority of the data packet according to the second bearer information, and send the user priority to the remote UE through WLAN;
the second sending unit 84 is further configured to determine a Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and send the data packet to the base station through the Uu interface bearer of the relay UE, where the data packet is received by the relay UE from the remote UE.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
Mapping table information between Uu interface QCI and QoS parameters for WLAN.
Optionally, the first sending unit 82 is further configured to
Determining a QoS parameter value for the WLAN corresponding to the data packet according to Uu bearing information of the remote UE or Uu bearing information of a relay UE corresponding to the received data packet of the remote UE and mapping table information between a Uu interface QCI and the QoS parameter for the WLAN;
and when the WLAN MAC layer is encapsulated, the QoS parameter value for the WLAN is encapsulated in an MAC header and is sent to the remote UE.
Optionally, the apparatus further comprises at least one of:
the analysis module is used for obtaining Uu bearing information of the remote UE by analyzing the data packet of the remote UE received from the base station;
and the receiving module is used for receiving Uu bearing information of the remote UE from the base station through RRC special signaling.
Optionally, the second sending unit 84 is further configured to
Analyzing QoS parameter information for WLAN carried in a Media Access Control (MAC) header of the data packet, determining a QCI value corresponding to the data packet according to mapping table information between the QoS parameter for WLAN and a Uu interface (QCI), and sending the data packet to the base station through the Uu bearer of the relay UE of the QCI value; or,
Analyzing Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and sending the data packet to the base station through the Uu bearing of the relay UE with the QCI value; or,
determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining QCI information of a bearer to which the received data packet belongs according to Uu interface bearer information of the remote UE obtained from a base station, and transmitting the data packet to the base station through the Uu bearer of the relay UE of the QCI value; or,
determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining a Uu interface bearer of a relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and transmitting the data packet to the base station through the Uu interface bearer of the relay UE; or,
analyzing Uu interface bearing information of a remote UE in a received data packet, determining Uu interface bearing of a relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and Uu interface bearing information of the relay UE, and sending the data packet to the base station through the Uu interface bearing of the relay UE.
According to another embodiment of the present invention, a base station is provided, and fig. 9 is a block diagram of a base station according to an embodiment of the present invention, and as shown in fig. 9, the base station includes a third transmission module 92 and a fourth transmission module 94, and a brief description of each module is provided below.
A third sending module 92, configured to send first bearer information to a remote UE, where the first bearer information is used for the remote UE to send a data packet;
a fourth sending module 94, configured to send second bearer information to a relay UE, where the second bearer information is used for sending a data packet by the relay UE.
Optionally, the first bearer information includes at least one of:
mapping table information between Uu interface scale values QCI and quality of service QoS parameters for WLAN;
the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
Optionally, the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
The Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
mapping table information between Uu interface QCI and QoS parameters for WLAN.
In the embodiment of the invention, remote UE is connected with relay UE through a non-3 GPP access technology and adopts the bearing configuration and mapping problems in a layer 2 data routing forwarding mode. Compared with the prior art, the method and the system can enable the layer 2 data routing forwarding of the remote UE to be executed correctly under the condition that the remote UE is connected with the relay UE through a non-3 GPP access technology, and enable an operator network to effectively manage and control the quality of service QoS of the remote UE. The method solves the problems of bearer configuration and mapping of remote UE connected with relay UE through non-3 GPP access technology and adopting a layer 2 data routing forwarding mode. Compared with the prior art, the method and the system can enable the layer 2 data routing forwarding of the remote UE to be executed correctly under the condition that the remote UE is connected with the relay UE through a non-3 GPP access technology, and enable an operator network to effectively manage and control the quality of service QoS of the remote UE.
Example 1
The present embodiment describes a first method how a remote UE sends a data packet to a relay UE, where non-3GPP access technology communication, such as WIFI, bluetooth, may be used between the remote UE and the relay UE. Taking WIFI technology as an example between remote UE and relay UE, the procedure of sending a data packet to the relay UE by the remote UE by using the method of this embodiment is as follows:
the higher layer of Remote UE generates a data packet that needs to be sent to the network side or other UEs through relay of relay UE. Therefore, the remote UE needs to send the packet to the relay UE. Specifically, the remote UE transmits a data packet generated by a higher layer to the relay UE through WLAN communication. In order to ensure the QoS of data transmission, when the WLAN MAC layer data encapsulation is performed, the data packet of the remote UE is required to be corresponding to the corresponding QoS parameter for WLAN and sent to the relay UE.
The Remote UE may obtain a mapping table between Uu interface QCI parameters and QoS parameters (e.g., user priority, UP) for the WLAN in advance, may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (e.g., proSe Function), or may obtain the mapping table from the base station through a system message or RRC dedicated signaling.
And the Remote UE determines a user priority value corresponding to the data packet according to the QCI value of the bearer to which the data packet belongs and a mapping table between a Uu interface QCI parameter obtained in advance and a QoS parameter (for example, user priority, UP) for the WLAN, and encapsulates the user priority value in a MAC header when the WLAN MAC layer data encapsulation is carried out. The remote UE then sends the data packet to the relay UE over the WLAN.
Example two
The embodiment describes a second method how the remote UE sends the data packet to the relay UE, where non-3GPP access technology communication, such as WIFI, bluetooth, may be used between the remote UE and the relay UE. Taking WIFI technology as an example between remote UE and relay UE, the procedure of sending a data packet to the relay UE by the remote UE by using the method of this embodiment is as follows:
the higher layer of Remote UE generates a data packet that needs to be sent to the network side or other UEs through relay of relay UE. Therefore, the remote UE needs to send the packet to the relay UE. Specifically, the remote UE transmits a data packet generated by a higher layer to the relay UE through WLAN communication. In order to ensure the QoS of data transmission, when the WLAN MAC layer data encapsulation is performed, the data packet of the remote UE is required to be corresponding to the corresponding QoS parameter for WLAN and sent to the relay UE.
When the base station configures the EPS bearer/Uu bearer for the remote UE, the base station configures QoS parameters (for example, user priority, UP) for the WLAN corresponding to/associated with the bearer for the remote UE. The base station may send the EPS bearer/Uu bearer of the remote UE and the corresponding QoS parameters for the WLAN to the remote UE through the RRC reconfiguration message.
And the Remote UE determines a user priority value corresponding to the data packet according to the QoS parameters (such as user priority, UP) for the WLAN corresponding to the bearer to which the data packet belongs and the bearer configured by the base station, and encapsulates the user priority value in the MAC header when the WLAN MAC layer data is encapsulated. The remote UE then sends the data packet to the relay UE over the WLAN.
Example III
The embodiment describes a first method for relay UE to relay the data packet of the remote UE to the base station, where the remote UE and the relay UE may use non-3GPP access technology for communication, such as WIFI and bluetooth. Taking a WIFI technology as an example between remote UE and relay UE, the procedure of sending a data packet to a base station by the relay UE by using the method of this embodiment is as follows:
and the Relay UE receives the data packet sent by the remote UE, and recognizes that the data packet is required to be forwarded to the base station, and forwards the data packet of the remote UE to the base station through the Uu bearer of the Relay UE. In order to guarantee the QoS of data transmission, the relay UE needs to send the packet received from the remote UE to the base station corresponding to the Uu bearer of the relay UE with the corresponding QoS.
The Relay UE may obtain a mapping table between QoS parameters (e.g., user priority, UP) and Uu interface QCI parameters for the WLAN in advance, the Relay UE may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (e.g., proSe Function), or may obtain the mapping table from a base station through a system message or RRC dedicated signaling.
After receiving a data packet sent by a remote UE, the Relay UE analyzes QoS parameter information (for example, user priority, UP) for a WLAN carried in a MAC header of the data packet, and determines a QCI value corresponding to the data packet according to a mapping table between a QoS parameter for the WLAN and a Uu interface QCI parameter obtained in advance. And then the relay UE transmits the data packet of the remote UE to the base station through the Uu bearer of the relay UE with the corresponding QCI value.
Example IV
The embodiment describes a second method for relay UE to relay the data packet of the remote UE to the base station, where non-3GPP access technology communication, such as WIFI, bluetooth, may be used between the remote UE and the relay UE. Taking a WIFI technology as an example between remote UE and relay UE, the procedure of sending a data packet to a base station by the relay UE by using the method of this embodiment is as follows:
And the Relay UE receives the data packet sent by the remote UE, and recognizes that the data packet is required to be forwarded to the base station, and the data packet of the remote UE is required to be forwarded to the base station through Uu bearing of the Relay UE. In order to guarantee the QoS of data transmission, the relay UE needs to send the packet received from the remote UE to the base station corresponding to the Uu bearer of the relay UE with the corresponding QoS. It is assumed that the data packet sent by the remote UE to the relay UE contains bearer information of the remote UE, for example, uu bearer identifier or logical channel identifier or CP/UP indication, QCI, etc. Preferably, the packet adapter layer header sent by the remote UE to the relay UE contains bearer information of the remote UE.
The Relay UE may obtain a mapping table between Uu bearer information of the remote UE and Uu bearer information of the Relay UE in advance, and the Relay UE may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (for example ProSe Function), or may obtain the mapping table from a base station through a system message or RRC dedicated signaling. The Uu bearer information of the remote UE may be a Uu bearer identifier or a logical channel identifier or a CP/UP indication or a QCI value, and the Uu bearer information of the relay UE may be a Uu bearer identifier or a logical channel identifier or a CP/UP indication or a QCI value.
After receiving a data packet sent by a remote UE, the Relay UE analyzes Uu bearing information of the remote UE carried in an MAC header of the data packet, and determines Uu bearing of the Relay UE corresponding to the data packet according to a mapping table between the Uu bearing information of the remote UE and the Uu bearing information of the Relay UE, which are obtained in advance. And then the relay UE transmits the data packet of the remote UE to the base station through the Uu bearer of the relay UE.
Example five
The embodiment describes a third method for relay UE to relay the data packet of the remote UE to the base station, where non-3GPP access technology communication, such as WIFI, bluetooth, may be used between the remote UE and the relay UE. Taking a WIFI technology as an example between remote UE and relay UE, the procedure of sending a data packet to a base station by the relay UE by using the method of this embodiment is as follows:
and the Relay UE receives the data packet sent by the remote UE, and recognizes that the data packet is required to be forwarded to the base station, and the data packet of the remote UE is required to be forwarded to the base station through Uu bearing of the Relay UE. In order to guarantee the QoS of data transmission, the relay UE needs to send the packet received from the remote UE to the base station corresponding to the Uu bearer of the relay UE with the corresponding QoS. It is assumed that the data packet sent by the remote UE to the relay UE contains bearer information of the remote UE, for example, uu bearer identification or logical channel identification or CP/UP indication, etc. Preferably, the packet adapter layer header sent by the remote UE to the relay UE contains bearer information of the remote UE.
The base station may send EPS bearer/Uu bearer information of the remote UE to a relay UE connected to the remote UE, where the EPS bearer/Uu bearer information of the remote UE includes, but is not limited to, EPS/Uu bearer identification or logical channel identification or CP/UP indication of the remote UE, or QCI information, etc. Alternatively, the Relay UE may obtain a mapping table between Uu bearer information of the remote UE and Uu bearer information of the Relay UE in advance, and the Relay UE may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (for example ProSe Function), or may obtain the mapping table from the base station through a system message or RRC dedicated signaling. The Uu bearer information of the remote UE may be a Uu bearer identifier or a logical channel identifier or a CP/UP indication or a QCI value, and the Uu bearer information of the relay UE may be a Uu bearer identifier or a logical channel identifier or a CP/UP indication or a QCI value.
After receiving a data packet sent by a remote UE, the Relay UE analyzes Uu bearing information of the remote UE carried in an MAC header of the data packet, and determines a QCI value corresponding to the data packet according to the Uu bearing information of the remote UE obtained in advance. And then, the relay UE optionally determines the Uu bearer of the relay UE corresponding to the data packet according to a mapping table between Uu bearer information of the remote UE and Uu bearer information of the relay UE or according to the UE implementation, and sends the data packet of the remote UE to the base station through the Uu bearer of the relay UE.
Example six
The embodiment describes a method for relay UE to relay a packet of a remote UE received from a base station to the remote UE, where the remote UE and the relay UE may use non-3GPP access technology for communication, such as WIFI and bluetooth. Taking WIFI technology as an example between remote UE and relay UE, by adopting the method of this embodiment, a procedure of sending, by the relay UE, a data packet of the remote UE received from a base station to the remote UE is as follows:
and the Relay UE receives the data packet of the remote UE from the base station, and recognizes that the data packet is required to be forwarded to the remote UE, and the data packet of the remote UE is required to be forwarded to the remote UE through a PC5 interface between the remote UE and the Relay UE. In order to guarantee QoS of data transmission, the relay UE needs to correspond the data packet received from the base station to the corresponding QoS parameter for WLAN and send the data packet to the remote UE.
The Relay UE may obtain a mapping table between Uu interface QCI parameters and QoS parameters (e.g., user priority, UP) for the WLAN in advance, the Relay UE may obtain the mapping table in a preconfigured manner, or may obtain the mapping table from a core network element (e.g., proSe Function), or may obtain the mapping table from a base station through a system message or RRC dedicated signaling.
After receiving a data packet of remote UE sent by a base station, the Relay UE optionally parses Uu bearer information (e.g. Uu bearer identifier, or logical channel identifier, or QCI value) of the remote UE carried in the data packet, and determines a QoS parameter value (e.g. user priority, UP) for the WLAN corresponding to the data packet according to the Uu bearer information of the remote UE, or Uu bearer information (e.g. Uu bearer identifier, or logical channel identifier, or QCI value) of the Relay UE receiving the remote UE data, and a mapping table between a Uu interface QCI parameter obtained in advance and a QoS parameter for the WLAN. The relay UE then sends the QoS parameter value for the WLAN to the remote UE including in the MAC header when the WLAN MAC layer is encapsulated.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (25)

1. A data transmission method, comprising:
the remote UE acquires first bearer information;
the remote UE sends a data packet to a relay UE according to the first bearer information, including: the remote UE determines the user priority of the data packet according to the first bearer information and sends the user priority of the data packet to the relay UE through the WLAN, wherein the first bearer information comprises at least one of the following: mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN; the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
2. The method of claim 1, wherein the remote UE obtaining the first bearer information comprises at least one of:
the remote UE acquires the first bearing information in a preconfigured mode;
the remote UE acquires the first bearing information from a base station through a system message;
The remote UE acquires the first bearer information from a base station through Radio Resource Control (RRC) special signaling;
and the remote UE acquires the first bearing information from a core network element.
3. The method of claim 1, wherein the sending, by the remote UE, a data packet to the relay UE according to the first bearer information comprises:
the remote UE determines the user priority corresponding to the data packet according to the QCI value of the Uu bearer of the remote UE to which the data packet belongs and mapping table information between the Uu interface QCI and QoS parameters for WLAN, wherein the QoS parameters for WLAN comprise the user priority;
when the remote UE performs WLAN MAC layer data encapsulation, encapsulating the user priority in an MAC header;
the remote UE sends a data packet to the relay UE over the WLAN.
4. The method of claim 1, wherein the sending, by the remote UE, the data packet to the relay UE according to the first bearer information comprises:
the remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN, which corresponds to the Uu interface bearer of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;
And when the remote UE performs WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.
5. A data transmission method, comprising:
the relay UE acquires second bearer information;
the relay UE sends a data packet according to the second bearing information, and the method comprises the following steps: the relay UE sends the data packet to the remote UE according to the second bearing information;
wherein the relay UE sending the data packet to the remote UE according to the second bearer information includes: the relay UE determines a QoS parameter value for WLAN corresponding to a data packet according to Uu bearing information of the remote UE or Uu bearing information of the relay UE corresponding to the received data packet of the remote UE and mapping table information between a Uu interface QCI and the QoS parameter for WLAN, wherein the QoS parameter for WLAN comprises user priority;
and the relay UE encapsulates the QoS parameter value for WLAN in a MAC header and sends the QoS parameter value to the remote UE when the WLAN MAC layer is encapsulated.
6. The method of claim 5, wherein the relay UE obtaining the second bearer information comprises at least one of:
the relay UE acquires the second bearing information in a preconfigured mode;
The relay UE acquires the second bearer information from a base station through a system message or a Radio Resource Control (RRC) special signaling;
and the relay UE acquires the second bearing information from a core network element.
7. The method of claim 5, wherein the relay UE transmitting data packets according to the second bearer information further comprises:
and the relay UE sends the data packet to a base station according to the second bearing information.
8. The method of claim 7, wherein the step of determining the position of the probe is performed,
the relay UE sending the data packet to the remote UE according to the second bearer information includes: the relay UE determines the user priority of the data packet according to the second bearing information and sends the user priority to the remote UE through WLAN; and/or
The relay UE sending the data packet to the base station according to the second bearer information includes: and the relay UE determines a Uu interface bearer of the relay UE corresponding to the data packet according to the second bearer information, and sends the Uu interface bearer of the relay UE to the base station, wherein the data packet is received by the relay UE from the remote UE.
9. The method according to any of claims 5 to 8, wherein the second bearer information comprises at least one of:
Mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
mapping table information between Uu interface QCI and QoS parameters for WLAN.
10. The method of claim 5, wherein before the relay UE transmits a data packet to the remote UE according to the second bearer information, the method further comprises at least one of:
the relay UE obtains Uu bearing information of the remote UE by analyzing a data packet of the remote UE received from a base station;
And the relay UE receives Uu bearer information of the remote UE from the base station through RRC special signaling.
11. The method of claim 9, wherein the relay UE transmitting data packets to a base station according to the second bearer information comprises one of:
the relay UE analyzes QoS parameters for WLAN carried in a Media Access Control (MAC) header of the data packet, determines a QCI value corresponding to the data packet according to mapping table information between the QoS parameters for WLAN and a Uu interface (QCI), and sends the data packet to the base station through a Uu bearer of the relay UE with the QCI value;
the relay UE analyzes Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and the data packet is sent to the base station through the Uu bearing of the relay UE with the QCI value;
the relay UE determines a Uu interface bearer of a remote UE to which the received data packet belongs, determines QCI information of the bearer to which the received data packet belongs according to Uu interface bearer information of the remote UE obtained from a base station, and sends the data packet to the base station through the Uu bearer of the relay UE with the QCI value;
The relay UE determines a Uu interface bearer of a remote UE to which the received data packet belongs, determines a Uu interface bearer of the relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and sends the data packet to the base station through the Uu interface bearer of the relay UE;
the relay UE analyzes Uu interface bearing information of a remote UE in the received data packet, determines Uu interface bearing of the relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and the Uu interface bearing information of the relay UE, and sends the data packet to the base station through the Uu interface bearing of the relay UE.
12. A data transmission method, comprising:
the base station sends first bearer information to a remote UE, wherein the first bearer information is used for the remote UE to send a data packet, and the method comprises the following steps: the remote UE determines the user priority of the data packet according to the first bearing information and sends the user priority to the relay UE through the WLAN; and/or the number of the groups of groups,
the base station sends second bearing information to the relay UE, wherein the second bearing information is used for sending a data packet by the relay UE;
Wherein the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE bears corresponding QoS parameter information for the WLAN, wherein the QoS parameter for the WLAN is user priority UP information;
the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the method comprises the steps of mapping table information of Uu interface bearing information of remote UE and Uu interface bearing information of relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE.
13. The method of claim 12, wherein the second bearer information further comprises at least one of:
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE.
14. A data transmission terminal, comprising:
the first acquisition module is used for acquiring first bearing information;
the first sending module is used for sending a data packet to the relay UE according to the first bearing information;
the first sending module is further configured to determine a user priority of the data packet according to the first bearer information, and send the user priority to the relay UE through the WLAN, where the first bearer information includes at least one of the following: mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN; the Uu interface of the remote UE carries corresponding QoS parameter information for the WLAN.
15. The terminal of claim 14, wherein the first acquisition module comprises at least one of:
the first acquisition unit is used for acquiring the first bearing information in a preconfigured mode;
a second acquiring unit, configured to acquire the first bearer information from a base station through a system message;
a third obtaining unit, configured to obtain, by using a remote UE, the first bearer information from a base station through radio resource control RRC dedicated signaling;
a fourth obtaining unit, configured to obtain, by using the remote UE, the first bearer information from a core network element.
16. The terminal of claim 14, wherein the first transmitting module is further configured to
Determining a user priority corresponding to the data packet according to a QCI value of a Uu bearer of the far-end UE to which the data packet belongs and mapping table information between the Uu interface QCI and QoS parameters for WLAN, wherein the QoS parameters for WLAN comprise the user priority;
when the WLAN MAC layer data is packaged, the user priority is packaged in an MAC header;
and transmitting the data packet to the relay UE through the WLAN.
17. The terminal of claim 14, wherein the first transmitting module is further configured to
The remote UE determines the user priority corresponding to the data packet according to the QoS parameter information for the WLAN, which corresponds to the Uu interface bearer of the remote UE to which the data packet belongs, wherein the QoS parameter for the WLAN comprises the user priority;
and when the remote UE performs WLAN MAC layer data encapsulation, the user priority is encapsulated in an MAC header.
18. A data transmission terminal, comprising:
the second acquisition module is used for acquiring second bearing information;
the second sending module is used for sending the data packet according to the second bearing information;
The second sending module comprises a first sending unit, and is used for sending the data packet to a remote UE according to the second bearing information;
the first sending unit is further configured to determine, according to Uu bearer information of the remote UE or Uu bearer information of a relay UE corresponding to a received data packet of the remote UE, a QoS parameter value for the WLAN corresponding to the data packet according to mapping table information between a Uu interface QCI and QoS parameters for the WLAN; and when the WLAN MAC layer is encapsulated, the QoS parameter value for the WLAN is encapsulated in an MAC header and is sent to the remote UE.
19. The terminal of claim 18, wherein the second acquisition module comprises at least one of:
a fifth obtaining unit, configured to obtain the second bearer information in a preconfigured manner;
a sixth acquiring unit, configured to acquire the second bearer information from the base station through a system message or radio resource control RRC dedicated signaling;
a seventh obtaining unit, configured to obtain the second bearer information from a core network element.
20. The terminal of claim 18, wherein the second transmitting module further comprises:
and the second sending unit is used for sending the data packet to the base station according to the second bearing information.
21. The terminal according to any of the claims 18 to 20, characterized in that the second bearer information comprises at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
mapping table information of Uu interface bearing information of a remote UE and Uu interface bearing information of a relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE;
mapping table information between Uu interface QCI and QoS parameters for WLAN.
22. The terminal of claim 18, wherein the terminal further comprises at least one of:
The analysis module is used for obtaining Uu bearing information of the remote UE by analyzing the data packet of the remote UE received from the base station;
and the receiving module is used for receiving Uu bearing information of the remote UE from the base station through RRC special signaling.
23. The terminal of claim 20, wherein the second transmitting unit is further configured to
Analyzing QoS parameter information for WLAN carried in a Media Access Control (MAC) header of the data packet, determining a QCI value corresponding to the data packet according to mapping table information between the QoS parameter for WLAN and a Uu interface (QCI), and sending the data packet to a base station through the Uu bearer of the relay UE of the QCI value; or,
analyzing Uu interface bearing information of the remote UE carried in the data packet, wherein the Uu interface bearing information of the remote UE comprises QCI information, and sending the data packet to the base station through the Uu bearing of the relay UE with the QCI value; or,
determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining QCI information of a bearer to which the received data packet belongs according to Uu interface bearer information of the remote UE obtained from a base station, and transmitting the data packet to the base station through the Uu bearer of the relay UE of the QCI value; or,
Determining a Uu interface bearer of a remote UE to which a received data packet belongs, determining a Uu interface bearer of a relay UE for forwarding the data packet according to Uu interface bearer information of the relay UE corresponding to the Uu interface bearer of the remote UE, and transmitting the data packet to the base station through the Uu interface bearer of the relay UE; or,
analyzing Uu interface bearing information of a remote UE in a received data packet, determining Uu interface bearing of a relay UE for forwarding the data packet according to mapping table information of the Uu interface bearing information of the remote UE and Uu interface bearing information of the relay UE, and sending the data packet to the base station through the Uu interface bearing of the relay UE.
24. A base station, comprising:
a third sending module, configured to send first bearer information to a remote UE, where the first bearer information is used for the remote UE to send a data packet, and includes: the remote UE determines the user priority of the data packet according to the first bearing information and sends the user priority to the relay UE through the WLAN; and/or
A fourth sending module, configured to send second bearer information to a relay UE, where the second bearer information is used for sending a data packet by the relay UE;
Wherein the first bearer information includes at least one of:
mapping table information between Uu interface quality of service QoS class identification QCI and QoS parameters for WLAN;
the Uu interface of the remote UE bears corresponding QoS parameter information for the WLAN, wherein the QoS parameter for the WLAN is user priority UP information;
the second bearer information includes at least one of:
mapping table information between QoS parameters for WLAN and Uu interface QCI;
the method comprises the steps of mapping table information of Uu interface bearing information of remote UE and Uu interface bearing information of relay UE, wherein the Uu interface bearing information of the remote UE is Uu interface bearing identification, logic channel identification or QCI information of the remote UE, and the Uu interface bearing information of the relay UE is Uu interface bearing identification, logic channel identification or QCI information of the relay UE.
25. The base station of claim 24, wherein the base station,
the second bearer information includes at least one of:
the Uu interface bearer information of the remote UE, where the Uu interface bearer information of the remote UE includes at least one of the following: bearer identification, logical channel ID, bearer configuration information, QCI information;
the Uu interface of the remote UE bears the Uu interface bearing information of the corresponding relay UE, wherein the Uu interface bearing information of the relay UE is the Uu interface bearing identifier, the logic channel identifier or the QCI information of the relay UE;
Mapping table information between Uu interface QCI and QoS parameters for WLAN.
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