CN114079484B - Configuration and transmission method, device and equipment of virtual antenna system transmission layer - Google Patents
Configuration and transmission method, device and equipment of virtual antenna system transmission layer Download PDFInfo
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- CN114079484B CN114079484B CN202010811195.3A CN202010811195A CN114079484B CN 114079484 B CN114079484 B CN 114079484B CN 202010811195 A CN202010811195 A CN 202010811195A CN 114079484 B CN114079484 B CN 114079484B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
- H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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Abstract
The embodiment of the invention provides a configuration method, a transmission method, a device and equipment of a virtual antenna system transmission layer, wherein the configuration method comprises the following steps: determining a configuration mode of a transmission layer of a virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode; and configuring a transmission layer of the virtual antenna system according to the configuration scheme. The scheme of the invention enables the terminal to more accurately evaluate the terminal capability and report, thereby obtaining the balance of the space multiplexing gain and the virtual diversity receiving gain.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for configuring and transmitting a transmission layer of a virtual antenna system.
Background
Multiple-input multiple-output (MIMO) is a key technology of LTE/5G system. Through configuring a plurality of transmitting antennas and receiving antennas at the transmitting and receiving ends, the MIMO technology can fully utilize space resources, and can improve the system channel capacity and the spectrum utilization rate by times under the condition of not increasing spectrum resources and antenna transmitting power. With the explosive growth of traffic and the continuous expansion pressure, MIMO will also be the key core technology of the next generation mobile communication system 6G.
In the LTE/5G MIMO system, the Rank (Rank) of the transmission channel matrix characterizes the correlation among a plurality of transmission channels between the transmitting end and the receiving end. For a communication system in which uplink and downlink do not satisfy reciprocity, one of the important contents reported by the terminal capability is Rank Indication (RI) of an MIMO channel matrix.
As shown in fig. 1, the terminal obtains RI by detecting the pilot signal and reports it to the base station, and the base station can obtain the correlation of the current wireless channel environment according to the reported RI, and then schedule the current downlink traffic channel to determine whether to transmit the MIMO signal of multiple codewords or transmit the diversity signal of a single codeword through transmit diversity.
For the requirement of higher system capacity of 6G, the virtual antenna technology develops a new idea for continuously improving the MIMO space multiplexing capability by transforming a transmission channel matrix. In the virtual antenna system, a base station end introduces an overlapping transmission factor A, so that each transmitting antenna asynchronously transmits a transmitting signal at equal interval time delay 1/A; and introducing an oversampling factor B into a receiving end, and performing oversampling processing on the received signal to obtain B-1 virtual receiving antennas, wherein the dimensionality of a transmission channel matrix is changed due to the oversampling processing.
The conventional Nt transmitting antenna and Nr receiving antenna are represented by the following equation (1) as a virtual antenna system channel matrix and equation (2) as a conventional 4G/5G MIMO channel matrix. It can be seen that the dimension of the virtual antenna channel matrix is expanded, and if the correlation of each row is small, a higher RI than equation (2) can be obtained.
Through the above process, the terminal in the virtual antenna system forms a plurality of virtual receiving antennas, so the number of resolvable data streams will probably not be less than the number of physical antennas thereof, thereby obtaining additional spatial multiplexing gain and virtual diversity receiving gain. The configuration of the transmission layer of the virtual antenna system is shown in fig. 2.
In the prior art, the number of physical antennas of a base station in an LTE/5G MIMO system is generally much larger than that of physical antennas of a terminal, and a single terminal is limited by volume and power, and can only achieve 4 physical antennas at most, and generally only has 2 physical antennas. For a single terminal, the data stream which can be received at most is 4-stream data, but it is difficult to exceed 2-stream data in actual test, so the RI reported by a single terminal generally does not exceed 2.
When the virtual antenna system performs downlink transmission, asynchronous and oversampling processing needs to be performed on data and demodulation reference signals, and theoretically, the maximum receiving stream number of a single terminal can be increased by constructing a virtual channel matrix, so that extra spatial multiplexing gain and virtual diversity receiving gain are obtained. At this time, the upper limit of the RI may exceed the minimum min (Nt, nr) of the actual physical antennas of the transmitting end and the receiving end. This means that when the base station performs downlink scheduling, the number of codewords allocated to the terminal may exceed the minimum value of the actual physical antenna number of the transmitting and receiving end, and extra spatial multiplexing gain and virtual diversity reception gain are obtained. However, due to the influence of the channel environment characteristics, the channel quality, the number of retransmissions, etc., although the RI value is improved, the link performance will be deteriorated if the base station implements complete spatial multiplexing of the RI layer under the condition that the single-stream channel quality is not good (e.g., the CQI is low).
Disclosure of Invention
The invention provides a configuration and transmission method, a device and equipment of a virtual antenna system transmission layer. The terminal can more accurately evaluate the terminal capability and report, and therefore balance between the spatial multiplexing gain and the virtual diversity receiving gain is obtained.
To solve the above technical problem, the embodiments of the present invention provide the following solutions:
a configuration method of a virtual antenna system transmission layer is applied to network equipment, and the method comprises the following steps:
determining a configuration mode of a transmission layer of a virtual antenna system;
receiving the configuration scheme reported by the terminal according to the configuration mode;
and configuring a transmission layer of the virtual antenna system according to the configuration scheme.
Optionally, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
Optionally, the proposed scheme for configuring the transport layer is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
the capability information includes: rank indicates at least one of RI and CQI.
Optionally, configuring a transmission layer of a virtual antenna system according to the configuration scheme includes:
and configuring the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers for the terminal according to the proposal for configuring the transmission layers, wherein the Ts is the length of one symbol on the time domain of the transmission layers.
Optionally, configuring a transmission layer of a virtual antenna system according to the configuration scheme includes:
and configuring the number L of transmission layers for the terminal according to at least one of the RI and the CQI, overlapping transmission factors RI of each layer and time delay between the overlapping transmission layers is Ts/RI, wherein the L is determined according to the CQI, and the Ts is the length of one symbol on a time domain of the transmission layers.
Optionally, the determining of L according to CQI includes:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni,min ，X Ni,max ]Threshold range of each levelThe value of one L is enclosed;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
Optionally, L is equal to or less than RI, RI belongs to [1, min (Nt, B × Nr) ], where Nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal.
The embodiment of the invention also provides a transmission method of the transmission layer of the virtual antenna system, which is applied to a terminal and comprises the following steps:
receiving a configuration mode of a network device to a virtual antenna system transmission layer;
reporting a configuration scheme according to the configuration mode;
receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
and transmitting a virtual antenna system transmission layer according to the configuration information.
Optionally, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is to configure a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
Optionally, reporting a configuration scheme according to the configuration mode includes:
reporting a transmission layer configuration proposal according to the first configuration mode, wherein the transmission layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is rank indication, and L is determined according to channel quality indication CQI;
reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: rank indicates at least one of RI and CQI.
Optionally, receiving configuration information that the network device performs virtual antenna system transport layer configuration on the terminal according to the configuration scheme includes:
and receiving the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers, which are configured for the transmission layer of the virtual antenna system of the terminal according to the transmission layer configuration proposal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
Optionally, receiving configuration information that the network device performs virtual antenna system transport layer configuration on the terminal according to the configuration scheme includes:
and receiving the number L of transmission layers, the overlapping transmission factor RI/L of each layer and the time delay between the overlapping transmission layers of Ts/RI which are determined by the CQI, of the virtual antenna system transmission layer configuration for the terminal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
Optionally, the determining of L according to CQI includes:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
Optionally, L is equal to or less than RI, RI belongs to [1, min (Nt, B × Nr) ], nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal.
The embodiment of the invention also provides a configuration device of a virtual antenna system transmission layer, which is applied to network equipment, and the device comprises:
the receiving and sending module is used for determining the configuration mode of a transmission layer of the virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode;
and the processing module is used for configuring the transmission layer of the virtual antenna system according to the configuration scheme.
An embodiment of the present invention further provides a network device, including:
the transceiver is used for determining the configuration mode of a transmission layer of the virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode;
and the processor is used for configuring the transmission layer of the virtual antenna system according to the configuration scheme.
The embodiment of the invention also provides a transmission device of the transmission layer of the virtual antenna system, which is applied to a terminal, and the device comprises:
the receiving and sending module is used for receiving the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
and the processing module is used for transmitting the transmission layer of the virtual antenna system according to the configuration information.
An embodiment of the present invention further provides a terminal, including:
the transceiver is used for receiving the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
and the processor is used for transmitting the transmission layer of the virtual antenna system according to the configuration information.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above.
An embodiment of the present invention also provides a computer-readable storage medium, characterized by instructions, which when executed on a computer, cause the computer to execute the method as described above.
The scheme of the invention at least comprises the following beneficial effects:
according to the scheme, the configuration mode of the transmission layer of the virtual antenna system is determined; receiving the configuration scheme reported by the terminal according to the configuration mode; configuring a transmission layer of a virtual antenna system according to the configuration scheme; the terminal can evaluate the terminal capability more accurately and report the terminal capability, and therefore balance between the spatial multiplexing gain and the virtual diversity reception gain is obtained.
Drawings
FIG. 1 is a schematic diagram of a configuration of transmission layers of an LTE/5G MIMO system;
FIG. 2 is a schematic diagram of a transmission layer configuration of a virtual antenna system;
fig. 3 is a flowchart illustrating a method for configuring a transmission layer of a virtual antenna system according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a transmission method of a transmission layer of a virtual antenna system according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a configuration apparatus of a transmission layer of a virtual antenna system according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 3, an embodiment of the present invention provides a method for configuring a transmission layer of a virtual antenna system, which is applied to a network device, and the method includes:
and step 33, configuring the transmission layer of the virtual antenna system according to the configuration scheme.
The embodiment of the invention determines the configuration mode of the transmission layer of the virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode; configuring a transmission layer of a virtual antenna system according to the configuration scheme; the terminal can more accurately evaluate the terminal capability and report, and therefore balance between the spatial multiplexing gain and the virtual diversity receiving gain is obtained.
In an optional embodiment of the present invention, a network device (e.g., a base station) may explicitly obtain how to acquire a transport layer configuration with a terminal through broadcast/RRC (radio resource control)/DCI (downlink control information) signaling, where the configuration manner includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme; here, the proposed scheme for the transport layer configuration is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L can be determined according to a Channel Quality Indication (CQI);
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal. Here, the capability information includes: rank indicates at least one of RI and CQI.
In this embodiment, the terminal obtains the terminal capability information such as RI, CQI, and the like according to the virtual channel matrix H by sampling the virtual channel matrix H. Based on the first configuration mode, the terminal may provide a transmission layer configuration proposal, where the format of the proposal is (L, RI), where L may be obtained from information such as CQI, L is equal to or less than RI, and RI belongs to [1, min (Nt, B × Nr) ], where Nt is the number of transmit antennas, nr is the number of receive antennas, and B is an over-sampling factor of the terminal. Based on the second configuration mode, the terminal may report its capability information, including RI, CQI, and the like.
In an alternative embodiment of the present invention, step 33 may include:
step 331, according to the proposed scheme for configuring the transmission layer, configuring the number L of transmission layers, the overlapping transmission factor RI/L of each layer, and the time delay Ts/RI between overlapping transmission layers for the terminal, where Ts is the length of one symbol in the time domain of the transmission layer.
In this embodiment, the network device may configure, for the terminal, the number L of layers of the transmission layer, the overlapping transmission factor of each layer, the time delay between overlapping transmission layers, and the like according to the L and the CQI reported in the transmission layer configuration proposal scheme reported by the terminal.
In an alternative embodiment of the present invention, step 33 may include:
step 332, configuring, according to the at least one of the RI and the CQI, the number L of transmission layers, the overlapping transmission factor RI/L of each layer, and the time delay Ts/RI between overlapping transmission layers for the terminal, where L is determined according to the CQI, and Ts is the length of one symbol in the time domain of the transmission layer.
In this embodiment, the network device may configure the number L of corresponding transmission layers, the overlapping transmission factor of each layer, and the time delay between overlapping transmission layers for the terminal according to the information such as RI and CQI in the capability information reported by the terminal.
In the above embodiment of the present invention, the determining, by the L according to the CQI, includes:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
In an optional embodiment of the present invention, L is not greater than RI, RI belongs to [1, min (Nt, B × Nr) ], where Nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal, where the over-sampling factor may be determined according to a capability of the terminal.
Here, a single antenna is taken as an example, and the rank RI =4 of the virtual channel matrix is set for a terminal with an oversampling factor of 4. The terminal proposal scheme (L, RI) may have various options, for example, the following proposal scheme may be obtained according to the CQI range:
according to the embodiment of the invention, the transmission layer can be configured according to the transmission layer configuration proposal scheme of the terminal or the capability of the terminal, the spatial multiplexing capability of the system can be improved, the establishment of the transmission layer of the base station is not limited by the actual physical antenna of the terminal, and the overall spatial multiplexing capability and the spectrum efficiency of the system are improved; meanwhile, the adaptive transmission layer number and the overlapping factor are selected according to the channel condition, the requirements of the terminal on diversity and spatial multiplexing are considered, and the overall performance of the system can be improved, so that the system can more accurately schedule the downlink service.
As shown in fig. 4, an embodiment of the present invention further provides a transmission method for a transmission layer of a virtual antenna system, which is applied to a terminal, and the method includes:
and step 44, transmitting the transmission layer of the virtual antenna system according to the configuration information.
In the embodiment of the invention, the terminal receives the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme; transmitting a virtual antenna system transmission layer according to the configuration information; the terminal capability can be more accurately evaluated and reported, and therefore the balance between the spatial multiplexing gain and the virtual diversity receiving gain is obtained.
In an optional embodiment of the present invention, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
In an alternative embodiment of the present invention, step 42 may comprise:
reporting a transmission layer configuration proposal according to the first configuration mode, wherein the transmission layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
and reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: rank indicates at least one of RI and CQI.
In an alternative embodiment of the present invention, step 43 may include:
and receiving the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers, which are configured for the transmission layer of the virtual antenna system of the terminal according to the transmission layer configuration proposal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
In an alternative embodiment of the present invention, step 43 may include:
receiving the number L of transmission layers configured by the network equipment for the transmission layer of the virtual antenna system for the terminal according to at least one of the RI and the CQI,
And each layer of the transmission layer is overlapped with the transmission factor RI/L and the time delay Ts/RI between the transmission layers, wherein L is determined according to CQI, and Ts is the length of one symbol on the time domain of the transmission layer.
In an optional embodiment of the present invention, the determining, by the L, according to the CQI includes:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
In an optional embodiment of the present invention, L is equal to or less than RI, RI belongs to [1, min (Nt, B × Nr) ], nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal.
It should be noted that the method on the terminal side is a method corresponding to the method on the network device side, and all implementation manners in the method embodiments are applicable to the embodiment of the terminal, and the same technical effect can be achieved.
As shown in fig. 5, an embodiment of the present invention further provides a device for configuring a transmission layer of a virtual antenna system, which is applied to a network device, and the device includes:
the receiving and sending module is used for determining the configuration mode of a transmission layer of the virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode;
and the processing module is used for configuring the transmission layer of the virtual antenna system according to the configuration scheme.
Optionally, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
Optionally, the proposed scheme for configuring the transport layer is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
the capability information includes: rank indicates at least one of RI and CQI.
Optionally, configuring a transmission layer of a virtual antenna system according to the configuration scheme includes:
and configuring the number L of transmission layers, the RI/L of each layer and the time delay Ts/RI between the overlapped transmission layers for the terminal according to the proposal for configuring the transmission layers, wherein Ts is the length of one symbol on the time domain of the transmission layers.
Optionally, configuring a transmission layer of a virtual antenna system according to the configuration scheme includes:
configuring the number L of transmission layers for the terminal according to at least one of the RI and the CQI,
And each layer of the transmission layer is overlapped with the transmission factor RI/L and the time delay Ts/RI between the transmission layers, wherein L is determined according to CQI, and Ts is the length of one symbol on the time domain of the transmission layer.
Optionally, the determining of L according to CQI includes:
dividing the CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold valueRange (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
Optionally, L is not greater than RI, RI belongs to [1, min (Nt, B × Nr) ], where Nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an oversubscription factor of the terminal.
It should be noted that the apparatus is an apparatus corresponding to the above method, and all the implementations in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides a network device, including:
the transceiver is used for determining the configuration mode of a transmission layer of the virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode;
and the processor is used for configuring the transmission layer of the virtual antenna system according to the configuration scheme.
Optionally, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
Optionally, the proposed scheme for configuring the transport layer is: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
the capability information includes: rank indicates at least one of RI and CQI.
Optionally, configuring a transmission layer of a virtual antenna system according to the configuration scheme includes:
and configuring the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers for the terminal according to the proposal for configuring the transmission layers, wherein the Ts is the length of one symbol on the time domain of the transmission layers.
Optionally, configuring a transmission layer of a virtual antenna system according to the configuration scheme includes:
configuring the number L of transmission layers for the terminal according to at least one of the RI and the CQI,
Each layer overlapping transmission factors RI/L and
and overlapping time delay Ts/RI between transmission layers, wherein L is determined according to CQI, and Ts is the length of one symbol in the time domain of the transmission layers.
Optionally, the determining of L according to CQI includes:
dividing CQI into N grades according to preset rules, setting the Ni grade with threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
Optionally, L is equal to or less than RI, RI belongs to [1, min (Nt, B × Nr) ], where Nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal.
It should be noted that the apparatus is an apparatus corresponding to the above method, and all implementation manners in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effect can be achieved.
The embodiment of the invention also provides a transmission device of the transmission layer of the virtual antenna system, which is applied to a terminal, and the device comprises:
the receiving and sending module is used for receiving the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
and the processing module is used for transmitting the transmission layer of the virtual antenna system according to the configuration information.
Optionally, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
Optionally, reporting a configuration scheme according to the configuration mode includes:
reporting a transport layer configuration proposal according to the first configuration mode, wherein the transport layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
and reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: rank indicates at least one of RI and CQI.
Optionally, receiving configuration information that the network device performs virtual antenna system transport layer configuration on the terminal according to the configuration scheme includes:
and receiving the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers, which are configured for the transmission layer of the virtual antenna system of the terminal according to the transmission layer configuration proposal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
Optionally, the receiving configuration information of the network device performing virtual antenna system transport layer configuration on the terminal according to the configuration scheme includes:
and receiving the number L of transmission layers, the overlapping transmission factor RI/L of each layer and the time delay Ts/RI between the overlapping transmission layers, which are determined by the CQI, of the virtual antenna system transmission layer configuration for the terminal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
Optionally, the determining of L according to CQI includes:
dividing CQI into N grades according to preset rules, setting the Ni grade with threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
Optionally, L is equal to or less than RI, RI belongs to [1, min (Nt, B × Nr) ], nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal.
It should be noted that the apparatus is an apparatus corresponding to the above method, and all the implementations in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides a terminal, including:
the transceiver is used for receiving the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
and the processor is used for transmitting the transmission layer of the virtual antenna system according to the configuration information.
Optionally, the configuration mode includes at least one of the following:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
and a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal.
Optionally, reporting a configuration scheme according to the configuration mode includes:
reporting a transport layer configuration proposal according to the first configuration mode, wherein the transport layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is rank indication, and L is determined according to channel quality indication CQI;
and reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: rank indicates at least one of RI and CQI.
Optionally, the receiving configuration information of the network device performing virtual antenna system transport layer configuration on the terminal according to the configuration scheme includes:
and receiving the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers, which are configured for the transmission layer of the virtual antenna system of the terminal according to the transmission layer configuration proposal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
Optionally, the receiving configuration information of the network device performing virtual antenna system transport layer configuration on the terminal according to the configuration scheme includes:
receiving the number L of transmission layers configured by the network equipment for the transmission layer of the virtual antenna system for the terminal according to at least one of the RI and the CQI,
Each layer overlaps transmission factor RI/L and time delay Ts/RI between transmission layers, wherein L is determined according to CQI, and Ts is the length of a symbol on a time domain of the transmission layer.
Optionally, the determining of L according to CQI includes:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni ,min，X Ni ,max]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
Optionally, L is equal to or less than RI, RI belongs to [1, min (Nt, B × Nr) ], nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an over-sampling factor of the terminal.
It should be noted that the terminal is a terminal corresponding to the method, and all implementation manners in the method embodiment are applicable to the embodiment of the terminal, and the same technical effect can be achieved.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effect can be achieved.
Embodiments of the present invention also provide a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method as described above. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effect can be achieved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various media capable of storing program codes.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A configuration method of a virtual antenna system transmission layer is applied to a network device, and the method comprises the following steps:
determining a configuration mode of a transmission layer of a virtual antenna system;
receiving the configuration scheme reported by the terminal according to the configuration mode;
configuring a transmission layer of a virtual antenna system according to the configuration scheme;
the configuration mode comprises at least one of the following modes:
a first configuration mode, wherein the first configuration mode is to configure a transmission layer according to a terminal transmission layer configuration proposal scheme;
a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal;
the proposed scheme for the transport layer configuration is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is rank indication, and L is determined according to channel quality indication CQI;
the capability information includes: at least one of Rank Indication (RI) and CQI;
the L is determined according to the CQI, and comprises the following steps:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni，min ,X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
2. The method according to claim 1, wherein configuring the transmission layer of the virtual antenna system according to the configuration scheme comprises:
and configuring the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers for the terminal according to the proposal for configuring the transmission layers, wherein the Ts is the length of one symbol on the time domain of the transmission layers.
3. The method according to claim 1, wherein configuring the transmission layer of the virtual antenna system according to the configuration scheme comprises:
and configuring the number L of transmission layers, the RI/L of each layer of overlapped transmission factors and the time delay Ts/RI between the overlapped transmission layers for the terminal according to at least one of the RI and the CQI, wherein the L is determined according to the CQI, and the Ts is the length of one symbol on a time domain of the transmission layer.
4. The method for configuring transmission layer of virtual antenna system according to claim 1,
the L is not more than RI, the RI belongs to [1, min (Nt, bxNr) ], the Nt is the number of sending antennas, the Nr is the number of receiving antennas, and the B is an over-sampling factor of the terminal.
5. A transmission method of a virtual antenna system transmission layer is applied to a terminal, and the method comprises the following steps:
receiving a configuration mode of a virtual antenna system transmission layer by network equipment;
reporting a configuration scheme according to the configuration mode;
receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
transmitting a virtual antenna system transmission layer according to the configuration information;
the configuration mode comprises at least one of the following modes:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal;
according to the configuration mode, reporting a configuration scheme comprises:
reporting a transmission layer configuration proposal according to the first configuration mode, wherein the transmission layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
and reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: at least one of Rank Indication (RI) and CQI;
the L is determined according to the CQI, and comprises the following steps:
dividing CQI into N grades according to preset rules, setting the Ni grade with threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
6. The transmission method of the transmission layer of the virtual antenna system according to claim 5, wherein receiving the configuration information of the virtual antenna system transmission layer configuration performed by the network device on the terminal according to the configuration scheme comprises:
and receiving the number of transmission layer configuration layers, the overlapping transmission factor RI/L of each layer and the time delay Ts/RI between the overlapping transmission layers of the virtual antenna system transmission layer configuration for the terminal according to the transmission layer configuration proposal, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
7. The transmission method of the transmission layer of the virtual antenna system according to claim 5, wherein receiving the configuration information of the virtual antenna system transmission layer configuration performed by the network device on the terminal according to the configuration scheme comprises:
and receiving the number L of transmission layers, the overlapping transmission factor RI/L of each layer and the time delay Ts/RI between the overlapping transmission layers, which are determined by the network equipment according to the CQI, of the transmission layer configuration of the virtual antenna system for the terminal according to at least one of the RI and the CQI, wherein the Ts is the length of one symbol on the time domain of the transmission layer.
8. The transmission method of the transmission layer of the virtual antenna system according to claim 5, wherein L is less than or equal to RI, RI belongs to [1, min (Nt, bxnr) ], nt is the number of transmitting antennas, nr is the number of receiving antennas, and B is an oversubscription factor of the terminal.
9. An apparatus for configuring a transport layer of a virtual antenna system, applied to a network device, the apparatus comprising:
the receiving and sending module is used for determining the configuration mode of a virtual antenna system transmission layer; receiving the configuration scheme reported by the terminal according to the configuration mode;
the processing module is used for configuring a transmission layer of the virtual antenna system according to the configuration scheme;
the configuration mode comprises at least one of the following modes:
a first configuration mode, wherein the first configuration mode is to configure a transmission layer according to a terminal transmission layer configuration proposal scheme;
a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal;
the proposal scheme for the configuration of the transmission layer comprises the following steps: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
the capability information includes: at least one of Rank Indication (RI) and Channel Quality Indicator (CQI);
the L is determined according to the CQI, and comprises the following steps:
dividing CQI into N grades according to preset rules, setting the Ni grade with threshold range (X) Ni ，min,X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
10. A network device, comprising:
the transceiver is used for determining the configuration mode of a transmission layer of the virtual antenna system; receiving the configuration scheme reported by the terminal according to the configuration mode;
the processor is used for configuring a transmission layer of the virtual antenna system according to the configuration scheme;
the configuration mode comprises at least one of the following modes:
a first configuration mode, wherein the first configuration mode is to configure a transmission layer according to a terminal transmission layer configuration proposal scheme;
a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal;
the proposed scheme for the transport layer configuration is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is a rank indication, and L is determined according to a Channel Quality Indication (CQI);
the capability information includes: at least one of Rank Indication (RI) and Channel Quality Indicator (CQI);
the L is determined according to the CQI, and comprises the following steps:
dividing CQI into N grades according to a preset rule, setting the Ni gradeHaving a threshold range (X) Ni ，min,X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
11. A transmission device of a transmission layer of a virtual antenna system is applied to a terminal, and the device comprises:
the receiving and sending module is used for receiving the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
the processing module is used for transmitting a virtual antenna system transmission layer according to the configuration information;
the configuration mode comprises at least one of the following modes:
a first configuration mode, wherein the first configuration mode is the configuration of a transmission layer according to a terminal transmission layer configuration proposal scheme;
a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal;
according to the configuration mode, reporting a configuration scheme comprises the following steps:
reporting a transmission layer configuration proposal according to the first configuration mode, wherein the transmission layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is rank indication, and L is determined according to channel quality indication CQI;
and reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: at least one of Rank Indication (RI) and CQI;
the L is determined according to the CQI, and comprises the following steps:
dividing CQI into N grades according to a preset rule, wherein the Ni grade is provided with a threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
12. A terminal, comprising:
the transceiver is used for receiving the configuration mode of the network equipment to the transmission layer of the virtual antenna system; reporting a configuration scheme according to the configuration mode; receiving configuration information of the network equipment for configuring a virtual antenna system transmission layer of a terminal according to the configuration scheme;
the processor is used for transmitting a virtual antenna system transmission layer according to the configuration information;
the configuration mode comprises at least one of the following modes:
a first configuration mode, wherein the first configuration mode is to configure a transmission layer according to a terminal transmission layer configuration proposal scheme;
a second configuration mode, wherein the second configuration mode is the configuration of a transmission layer according to the capability information reported by the terminal;
according to the configuration mode, reporting a configuration scheme comprises the following steps:
reporting a transmission layer configuration proposal according to the first configuration mode, wherein the transmission layer configuration proposal is as follows: combining parameters (L, RI), wherein L is the number of transmission layers, RI is rank indication, and L is determined according to channel quality indication CQI;
reporting the capability information of the terminal according to the second configuration mode, wherein the capability information comprises: at least one of Rank Indication (RI) and Channel Quality Indicator (CQI);
the L is determined according to the CQI, and comprises the following steps:
dividing CQI into N grades according to preset rules, setting the Ni grade with threshold range (X) Ni,min ，X Ni,max ]Each level of threshold range corresponds to a value of L;
and determining the value of L corresponding to the corresponding grade according to the threshold range to which the current CQI belongs.
13. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1 to 4 or the method of any of claims 5 to 8.
14. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 4 or the method of any one of claims 5 to 8.
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