CN105101164A - Dual-card dual-standby terminal and data communication method - Google Patents

Dual-card dual-standby terminal and data communication method Download PDF

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Publication number
CN105101164A
CN105101164A CN201510437987.8A CN201510437987A CN105101164A CN 105101164 A CN105101164 A CN 105101164A CN 201510437987 A CN201510437987 A CN 201510437987A CN 105101164 A CN105101164 A CN 105101164A
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China
Prior art keywords
network
data
sim card
link
protocol stack
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CN201510437987.8A
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Chinese (zh)
Inventor
何坚
申世安
王朝
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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Priority to CN201510437987.8A priority Critical patent/CN105101164A/en
Publication of CN105101164A publication Critical patent/CN105101164A/en
Priority to PCT/CN2016/090454 priority patent/WO2017012532A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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

Abstract

The invention discloses a dual-card dual-standby terminal and a data communication method. The dual-card dual-standby terminal comprises a first SIM card, a second SIM card, a first protocol stack, a second protocol stack, a data service module and a TCP/IP protocol stack. The TCP/IP protocol stack comprises a first virtual WAN transmission interface and a second virtual WAN transmission interface. The first SIM card resides in a PS domain and a CS domain of a network through the first protocol stack. The second SIM card resides in a PS domain and a CS domain of a network through the second protocol stack. The first virtual WAN transmission interface and the second virtual WAN transmission interface are used for transmitting data of the first protocol stack and the second protocol stack respectively. The data service module is used for selecting the network where the first SIM card or the second SIM card belongs to establish a PS data service link so as to carry out data transmission. The terminal and the method have the following advantages that the SIM card can resides in a CS voice service and a PS data service simultaneously; transmission interruption and other problems generated because one network is abnormal can be avoided; a resource utilization rate is increased and a user experience is improved.

Description

Dual-card dual-standby terminal and data communications method
Technical field
The present invention relates to moving communicating field, more particularly, relate to a kind of dual-card dual-standby terminal and data communications method.
Background technology
Along with the development of mobile network and data communication technology, the requirement of user to terminal data rate is more and more higher.On the other hand, while raising network rate and frequency range utilance, multimode terminal (such as, DSDS, dual-card dual-standby terminal) appearance, make user realizing double card speech business standby while, double card data service link separately can be set up respectively.
But in existing DSDS terminal, when one usage data business in two subscriber identification modules (SIM) card, another SIM card can only be standby as speech business.Therefore, if during the abnormal conditions such as the communication network residing for SIM card carrying out data service interrupts, poor communications quality, the transmission of data service can be affected, even causes it to interrupt, significantly limit the use of data service, cause the waste of terminal radio frequency resource.
On the other hand, existing DSDS terminal only has a SIM card can use 3G/4G (such as, LTE) network and data service thereof, and another SIM card can only use 2G business (GSM/1X), therefore, when switching, not only needing the switching of SIM card data service, and having needed the switching of network formats.Such switching mode, needs to carry out alternately (such as, the reciprocal process of " deexcitation "-" activation ") with SIM card, makes once to switch the needs longer time, can not meet the demand of real-time data service (such as, VOIP etc.).
Therefore, prior art existing defects, needs to improve.
Summary of the invention
The technical problem to be solved in the present invention is, the communication mode for the above-mentioned DSDS terminal of prior art limits the use of user data service, causes the defects such as the waste of radio frequency resource, provides a kind of dual-card dual-standby terminal and data communications method.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of dual-card dual-standby terminal, comprising: the first SIM card, the second SIM card, the first protocol stack, second protocol stack, data service module and ICP/IP protocol stack;
Described ICP/IP protocol stack comprises the first virtual WAN coffret and the second virtual WAN coffret;
Described first SIM card resides in PS territory and the CS territory of network by described first protocol stack;
Described second SIM card resides in PS territory and the CS territory of network by described second protocol stack;
Described first virtual WAN coffret is connected with described first protocol stack and second protocol stack respectively with the second virtual WAN coffret, for transmitting the data of the first protocol stack and second protocol stack;
Described data service module sets up PS data service link, to carry out transfer of data for selecting the network at the first SIM card or the second SIM card place.
Optionally, described first protocol stack and second protocol stack support the various protocols such as LTE/WCDMA/GSM/TDSCDMA/CDMA/EVDO simultaneously.
Optionally, described data service module comprises:
Whether detecting unit, have market demand to need to set up data service link for detecting;
Judging unit, for judging whether that existing SIM card establishes data service link;
Selected cell, if for not having SIM card to set up data service link, then selects optimal network to set up data service link to carry out transfer of data;
Determining unit, if establish data service link for existing SIM card, then according to market demand feature and each network of network performance of current request, determines optimal network, and judges whether the data service link set up is what set up by optimal network;
Switch unit, if be not be set up by optimal network for the judged result of determining unit, then performs data link from a SIM card to the switching of another SIM card.
Optionally, described switch unit is used for sending a MSG message by current SIM card, and the PDP data link on current SIM card is hung up, and send the 2nd MSG message by another SIM card, set up/recover current PDP data link network with request, after network replies, activated by another SIM card and set up PDP data link, completing the switching of data link.
Optionally, described data service module also comprises:
Data preferred cell, for according to network performance switch data link, carries out transfer of data to utilize optimal network;
Timing preferred cell, for according to timing switch data link, carries out transfer of data to utilize optimal network.
Optionally, described data preferred cell comprises:
Condition presets subelement, for pre-setting reselection conditions and switching condition;
Whether gravity treatment judgment sub-unit, meet reselection conditions for detecting current SIM card place network of network state of carrying out transfer of data, if meet, then detects the state parameter of another SIM card place network;
First switching judging subelement, if meet switching condition for state parameter, then carries out chain-circuit time delay measurement to current network and starts latency measurement timer (PING latency measurement timer); Otherwise then continue to use current network to carry out transfer of data;
First switches subelement, for transfer of data is switched to another SIM card from current SIM card;
First chain-circuit time delay measuring unit, after setting up data service link, carries out chain-circuit time delay measurement to new network for successful switch;
First detection sub-unit, if for latency measurement timer expiry being detected, then terminates to measure the chain-circuit time delay of new network, performs data link switchings and sets up data service link carry out transfer of data again to switch back former network;
Second detection sub-unit, if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
Optionally, described timing preferred cell comprises:
Subelement is set, for arranging preferred timer;
Measure subelement, for when preferred timer expiry, whether well measure another network of network state;
Second switching judging subelement, if in good condition for another network of network, then start latency measurement timer and carries out chain-circuit time delay measurement to current network; Otherwise then continue to use current network to carry out transfer of data;
Second switches subelement, for data link is switched to another SIM card from current SIM card;
Second chain-circuit time delay measures subelement, after setting up data service link, carries out chain-circuit time delay measurement to new network for successful switch;
3rd detection sub-unit, if for latency measurement timer expiry being detected, then terminates to measure the chain-circuit time delay of new network, performs data link switchings and sets up data traffic link carry out transfer of data again to switch back former network;
4th detection sub-unit, if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
On the other hand, provide a kind of data communications method, be applied to dual-card dual-standby terminal, described dual-card dual-standby terminal comprises: the first SIM card, the second SIM card, the first protocol stack, second protocol stack, data service module and ICP/IP protocol stack; Described ICP/IP protocol stack comprises the first virtual WAN coffret and the second virtual WAN coffret; Described first virtual WAN coffret is connected with described first protocol stack and second protocol stack respectively with the second virtual WAN coffret;
Described first SIM card carries out network registry, to be resided in PS territory and the CS territory of network by described first protocol stack;
Described second SIM card carries out network registry, to be resided in PS territory and the CS territory of network by described second protocol stack;
Described data service module has detected that market demand needs to set up data service link, then select the network at the first SIM card or the second SIM card place to set up PS data service link, to carry out transfer of data;
Described first virtual WAN coffret and the second virtual WAN coffret transmit the data of the first protocol stack and second protocol stack respectively.
Optionally, described method also comprises:
Described data service module has detected that market demand needs to set up data service link, then judge whether that existing SIM card establishes data service link, if do not have, then selects optimal network to set up data service link to carry out transfer of data;
If have, then judge whether the data service link set up is set up by optimal network, if not, then perform data link switching and set up data service link to carry out transfer of data to switch to optimal network.
Optionally, according to market demand feature and network performance, optimal network is determined.
Optionally, described method also comprises:
Reportedly be input into Row sum-equal matrix according to data optimal way or timing optimal way logarithm to switch.
Optionally, described data optimal way comprises:
Pre-set reselection conditions and switching condition;
Detect current SIM card place network of network state of carrying out transfer of data and whether meet reselection conditions, if meet, then detect the state parameter of another SIM card place network;
If state parameter meets switching condition, then chain-circuit time delay measurement carried out to current network and start latency measurement timer, and data link is switched to another SIM card from current SIM card;
Successful switch also, after setting up data service link, carries out chain-circuit time delay measurement to new network;
If detect, latency measurement timer surpasses, then terminate to measure the chain-circuit time delay of new network, performs data link switchings and sets up data service link carry out transfer of data again to switch back former network;
If in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
Optionally, described timing optimal way comprises:
Preferred timer is set;
When preferred timer expiry, whether well measure another network of network state;
If another network of network is in good condition, then starts latency measurement timer and chain-circuit time delay measurement is carried out to current network;
Data link is switched to another SIM card from current SIM card;
Successful switch also, after setting up data service link, carries out chain-circuit time delay measurement to new network;
If latency measurement timer expiry detected, then terminate to measure the chain-circuit time delay of new network, perform data link switchings and set up data traffic link carry out transfer of data again to switch back former network;
If in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
Optionally, described method also comprises:
Send a MSG message by current SIM card, and the PDP data link on current SIM card is hung up;
The 2nd MSG message is sent, to ask to set up/recover current PDP data link network by another SIM card;
After network replies, activated by another SIM card and set up PDP data link, to complete the switching of data link.
Optionally, described method also comprises:
If arbitrary SIM card registered network serv-fail, then start registration timer, after timer expiry to be registered, more again complete the registration of this SIM card;
In the timing of registration timer, the radio frequency resource of described dual-card dual-standby terminal is all for the successful SIM card of another registered network.
Implement dual-card dual-standby terminal of the present invention and data communications method, there is following beneficial effect: by arranging the dual stack (the first protocol stack and second protocol stack) supporting various protocols, realize SIM card resident CS voice service simultaneously and PS data, services, improve resource utilization; Can realize constantly adjusting in data transmission procedure, when avoiding a certain network to occur abnormal, the problems such as the Transmission caused, avoid occurring data service call drop, increase network utilization and radio frequency resource utilance, improve Consumer's Experience; Shorten switching time, improve switching efficiency, real-time data service (such as, VOIP etc.) can be met to the requirement of real-time; Two SIM cards can be realized and all can use the communication networks such as 3G/4G (such as, LTE, EVDO etc.).
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the topology diagram of the communication network of the embodiment of the present invention;
Fig. 2 is the communication construction schematic diagram of the terminal of the embodiment of the present invention;
Fig. 3 is the structural representation of the data service module 40 of the embodiment of the present invention;
Fig. 4 is the flow chart of the data communications method of the embodiment of the present invention;
Fig. 5 is the flow chart of the data optimal way of the embodiment of the present invention:
Fig. 6 is the flow chart of the timing optimal way of the embodiment of the present invention
Fig. 7 is the flow chart of the handoff procedure of the data service link of the embodiment of the present invention.
Embodiment
For the communication mode solving existing DSDS terminal limits the use of user data service, cause the defect of the waste of radio frequency resource, the embodiment of the present invention provides a kind of dual-card dual-standby terminal and data communications method, during to realize avoiding single SIM card to transmit, network state is deteriorated the data traffic interruptions caused, and intelligent selection first SIM card or the second SIM card can carry out data traffic transmission, increase network utilization and radio frequency resource utilance, improve the technique effect of Consumer's Experience.
The Integral Thought that the embodiment of the present invention solves the problems of the technologies described above is: in dual-card dual-standby terminal, arrange the first SIM card, the second SIM card, the first protocol stack, second protocol stack, data service module and ICP/IP protocol stack.ICP/IP protocol stack comprises the first virtual WAN coffret and the second virtual WAN coffret.PS territory and the CS territory of the first protocol stack for making the first SIM card reside in network; PS territory and the CS territory of second protocol stack for making the second SIM card reside in network; First virtual WAN coffret is connected with the first protocol stack and second protocol stack respectively with the second virtual WAN coffret, for transmitting the data of the first protocol stack and second protocol stack; Data service module sets up PS data service link, to carry out transfer of data for selecting the network at the first SIM card or the second SIM card place.
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.It is the topology diagram of the communication network of the embodiment of the present invention see Fig. 1.The terminal 10 of the embodiment of the present invention, comprise at least two subscriber identification modules (SIM) card, such as, the first SIM card 12 and the second SIM card 14, in certain embodiments, terminal 10 can comprise two or more SIM card.
The first user that first SIM card 12 ALARA Principle is associated with the first technical standard, and the second user that the second SIM card 14 ALARA Principle is associated with the second technical standard.
Each SIM card can have one or more relevant telephone number, such as, for the first telephone number of the first SIM card 12 and the second telephone number for the second SIM card 14.
Terminal 10 can at least use the first SIM card 12 to communicate in first network 30 via the first base station 20.Terminal 10 can use the second SIM card 14 to communicate in second network 32 via the first base station 20 or via different base station (such as, the second base station 22).First network 30 and second network 32 can use identical or different radio access technologies to promote and the communicating of terminal 10.Should be understood that in Fig. 1 the example that illustrate only terminal 10 and carried out at heterogeneous networks by different base stations communicating, in addition, terminal 10 also can communicate at identical network via identical base station, or carries out communicating etc. at identical network via different base stations.
Terminal 10 can comprise the radio frequency management module 11 being configured to manage the exchange of signaling that communicates be associated with the second SIM card 14 with the first SIM card 12 via radio frequency transmission module (RF) 13.Radio frequency management module 11 can comprise and executive communication agreement, and/or uses and allow with the agreement of the communication of first network 30 and second network 32 and/or the proprietary instruction of standard and/or subscribe proprietary configuration information to manage the proprietary signal procedure of other standard.In addition, radio frequency transmission module 13 is configured to communication exchange of signaling is transmitted into the one or more base station in wireless communication system or other device, or from one or more base station or other device received communication exchange of signaling.Such as, radio frequency transmission module 13 can comprise one or more in reflector, receiver, transmitting chain component and receive chain assembly.
Embodiment 1
It is the communication construction schematic diagram of the terminal of the embodiment of the present invention see Fig. 2.
The communication construction of the terminal 10 of the embodiment of the present invention comprises: radio frequency transmission module 13, radio frequency management module 11, first protocol stack 15, second protocol stack 16, ICP/IP protocol stack 18, market demand chaining service 19, data service module 40, first virtual WAN coffret 171, second virtual WAN coffret 172, first SIM card 12 and the second SIM card 14.
First protocol stack 15 and second protocol stack 16 are Modem protocol stack, can support the various protocols such as LTE/WCDMA/GSM/TDSCDMA/CDMA/EVDO simultaneously.Thus, the first above-mentioned technical standard and the second technical standard can be any wireless technology standard (such as, LTE, WCDMA, TDS-CDMA, GSM, CDMA, EVDOGPRS, EDGE, TD-LTE etc.), namely the terminal 10 of the embodiment of the present invention can realize double card and uses simultaneously, such as, LTE, EVOD, wait network.By storing and utilizing the agreement relevant to the first technical standard and the second technical standard and communication standard information, all communication technology standards that in fact terminal 10 can use terminal 10 to support communicate.
When terminal 10 is operated in double card pattern, first SIM card 12 and the second SIM card 14 connect with corresponding Modem protocol stack (the first protocol stack 15 and second protocol stack 16) respectively, and according to the network capabilities that respective Modem protocol stack is supported, select optimal network.
Simultaneously the first SIM card 12 and the second SIM card 14 are set up and the data service of network and speech business by protocol stack each other, thus realize each SIM card all can resident data and speech business simultaneously.
In addition, the first protocol stack 15 and second protocol stack 16 respectively WAN coffret 171 virtual with first and the second virtual WAN coffret 172 are connected, and fictionalize two WAN mouth protocol stack architecture, thus are convenient to control the transmission of route data.First virtual WAN coffret 171 and the second virtual WAN coffret 172 transmit the data of the first protocol stack 15 and second protocol stack 16 respectively.
The dual stack (the first protocol stack 15 and second protocol stack 16) of the embodiment of the present invention can only have a protocol stack to take radio frequency resource as radio frequency sender at one time.Radio frequency management module 11 is for controlling the switching of radio frequency resource, and when a protocol stack needs to transmit data, another protocol stack is in accepting state.
See Fig. 2, in embodiments of the present invention, when terminal 10 is operated in double card pattern, the first SIM card 12 and the first protocol stack 15 connect, and the second SIM card 14 connects with second protocol stack 16.Thus, the first SIM card 12 resides in PS (Packet Service) territory and CS (Circuit Service) territory of first network 30 by the first protocol stack 15, and thus, the first SIM card 12 registers CS voice and PS data network service by first network 30.Second SIM card 14 resides in PS territory and the CS territory of first network 30 by second protocol stack 16, and thus, the first SIM card 12 registers CS voice and PS data network service by second network 32.Thus, in the embodiment of the present invention, terminal 10, by dual stack, can realize two SIM cards and all can register CS voice and PS data, services simultaneously, improves resource utilization.
First network 30 and second network 32 can be the heterogeneous networks of different operators, may also be the similar and different network of same operator.
It is the structural representation of the data service module 40 of the embodiment of the present invention see Fig. 3.Data service module 40 comprises:
Whether detecting unit 402, have market demand to need to set up data service link for detecting.
Judging unit 403, for judging whether that existing SIM card establishes data service link.
Selected cell 404, if for not having SIM card to set up data service link, then selects optimal network to set up data service link to carry out transfer of data.Preferably, according to the market demand feature of current request and each network of network performance, can judge which network is optimal network.
Market demand feature can comprise requirement of real-time, data package size etc., it can obtain according to concrete market demand, in practice, can be different market demands and define different application characteristics, such as, the requirement of real-time of definition app application is low or high, and the requirement of real-time of VOIP business is high.The requirement of market demand to network performance that requirement of real-time is high is high.The feature that different pieces of information is applied can store according to tableau format by terminal 10.
Network performance at least comprise following one of them: RSSI (intensity of Received signal strength), SNR (signal to noise ratio), chain-circuit time delay, BLER (BLER (block error rate)), packet loss etc.Wherein, RSSI, SNR, BLER can obtain according to cell information (such as, from the downstream signal of base station); The mode that chain-circuit time delay, packet loss send ping packet by terminal 10 through each network records.
Should be understood that when determining optimal network, also only can consider network performance.
Determining unit 405, if establish data service link for existing SIM card, then according to market demand feature and each network of network performance of current request, determines optimal network, and judges whether the data service link set up is what set up by optimal network.
Switch unit 406, for performing data link from a SIM card to the switching of another SIM card.
Concrete, switch unit 406 is for sending a MSG message by current SIM card, and by the PDP (PacketDataProtocol on current SIM card, packet data protocol) data link hang-up, and send the 2nd MSG message, to ask to set up/recover current PDP data link network, after network replies by another SIM card, activated by another SIM card and set up PDP data link, completing the switching of data link.
By the switch unit 406 of the embodiment of the present invention, when carrying out data service and switching, do not need to carry out alternately between two SIM card, thus, when switching, the switching carrying out SIM card standard as prior art is not needed, shorten switching time, improve switching efficiency, real-time data service (such as, VOIP etc.) can be met to the requirement of real-time.
The data service module 40 of the embodiment of the present invention also comprises: data preferred cell 407 and timing preferred cell 408.When terminal 10 to establish after data service link carries out transfer of data according to above-mentioned flow process, data preferred cell 407, for according to network performance switch data link, carries out transfer of data to utilize optimal network; Timing preferred cell 408, for according to timing switch data link, carries out transfer of data to utilize optimal network.
Wherein, data preferred cell 407 comprises:
Condition presets subelement, for pre-setting reselection conditions and switching condition.Such as, reselection conditions be at least following one of them: RSSI is less than that A, BLER are greater than B, packet loss is greater than C.Switching condition be at least following one of them: RSSI is greater than i and the RSSI difference of more excellent network and poor network is greater than x1 (such as, RSSI>100dBm, and RSSI sIM1-RSSI sIM2>NdBm), BLER is less than j and the BLER difference of poor network and more excellent network is greater than x1, packet loss is less than k and poor network is greater than x1 with the packet loss difference of more excellent network.
Gravity treatment judgment sub-unit, for detecting current SIM card of carrying out transfer of data (such as, first SIM card) whether place network of network state meet reselection conditions (such as, BLER is greater than 10%), if meet, then detect the state parameter of another SIM card (such as, the second SIM card) place network.
First switching judging subelement, if meet switching condition (such as, RSSI>100dBm, and RSSI for state parameter another SIM-RSSI current SIM>NdBm), then chain-circuit time delay measurement carried out to current network and start latency measurement timer (PING latency measurement timer); Otherwise then continue to use current network to carry out transfer of data.
First switches subelement, for data link is switched to another SIM card from current SIM card.
First chain-circuit time delay measuring unit, after setting up data service link, carries out chain-circuit time delay measurement to new network for successful switch.
First detection sub-unit, if for latency measurement timer expiry being detected, then terminates to measure the chain-circuit time delay of new network, performs data link switchings and sets up data service link carry out transfer of data again to switch back former network.
Second detection sub-unit, if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
By data preferred cell, can realize, when the network state residing for current SIM card of carrying out transfer of data is deteriorated, selects more excellent network to transmit, increasing network utilization and radio frequency resource utilance, improve Consumer's Experience.
Timing preferred cell is from the different of data preferred cell, and timing preferred cell carries out the switching entry condition of data link based on preferred timer, makes terminal 10 under good network environment, also can complete the preferred of data link and switch.Concrete, timing preferred cell comprises:
Subelement is set, for arranging preferred timer.
Measure subelement, for when preferred timer expiry, whether well measure another network of network state.
Second switching judging subelement, if for another network of network (such as, RSSI>85dBm) in good condition, then starts latency measurement timer and carries out chain-circuit time delay measurement to current network; Otherwise then continue to use current network to carry out transfer of data.
Second switches subelement, for data link is switched to another SIM card from current SIM card.
Second chain-circuit time delay measures subelement, after setting up data service link, carries out chain-circuit time delay measurement to new network for successful switch.
3rd detection sub-unit, if for latency measurement timer expiry being detected, then terminates to measure the chain-circuit time delay of new network, performs data link switchings and sets up data traffic link carry out transfer of data again to switch back former network.
4th detection sub-unit, if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network (such as, be greater than 500ms), then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
By embodiment of the present invention data preferred cell and timing preferred cell, can realize constantly adjusting in data transmission procedure, when avoiding a certain network to occur abnormal, the problems such as the Transmission caused, increase network utilization and radio frequency resource utilance, improve Consumer's Experience.
The terminal of the embodiment of the present invention, by arranging the dual stack (the first protocol stack and second protocol stack) supporting various protocols, can realize SIM card resident CS voice service simultaneously and PS data, services, improve resource utilization; Two SIM cards can be realized and all can use the communication networks such as 3G/4G (such as, LTE, EVDO etc.); Can realize constantly adjusting in data transmission procedure, when avoiding a certain network to occur abnormal, the problems such as the Transmission caused, avoid occurring data service call drop, increase network utilization and radio frequency resource utilance, improve Consumer's Experience; Shorten switching time, improve switching efficiency, real-time data service (such as, VOIP etc.) can be met to the requirement of real-time.
Embodiment 2
See Fig. 4, the data communications method of the embodiment of the present invention comprises the following steps:
Step 100: the first SIM card 12 carries out network registry, to reside in PS territory and the CS territory of first network 30 by the first protocol stack.Second SIM card 14 carries out network registry, to be resided in PS territory and the CS territory of second network 32 by second protocol stack.
In an embodiment of the present invention, when after the first SIM card 12 and the second SIM card 14 all successful registration network, terminal 10 enters idle pulley (IDLE).
Because terminal 10 only has one to send TX passage, if arbitrary SIM card registered network serv-fail, then start registration timer (RegTimer), after timer expiry to be registered, more again complete the registration of this SIM card.And in the timing of registration timer, the radio frequency resource (send TX passage and receive RX passage) of terminal 10 is all for the successful SIM card of another registered network.Thus, can resource utilization be improved, avoid the waste of radio frequency resource.
After first SIM card 12 and the second SIM card 14 succeed in registration, its respective data-transformation facility is opened.Should understand, in an embodiment of the present invention, the data-transformation facility of the first SIM card 12 and the second SIM card 14 can be opened simultaneously, opening ways can be succeed in registration namely acquiescence open or after succeeding in registration by modes such as user'ss manually opened (by providing On/Off button etc. in the user interface of terminal 10), the embodiment of the present invention is not restricted this.
Step 102: detect and whether have market demand to need to set up data service link; If have, then forward step 104 to.
Step 104: detected that market demand needs to set up data service link, then judge whether that existing SIM card establishes data service link (namely carrying out transfer of data), if do not have, then forward step 106 to, if forward step 108 to.
Step 106: if do not have SIM card to set up data service link, then select optimal network to set up data service link to carry out transfer of data.
Step 108: if existing SIM card establishes data service link, then according to the market demand feature of current request and the network performance of first network and second network, determine optimal network; And judge whether the data service link set up is what set up by optimal network, if not, then perform data link switching with (handoff procedure will be introduced follow-up) in step 110, carry out transfer of data to select optimal network.
Preferably, according to the market demand feature of current request and each network of network performance, can judge which network is optimal network.
Market demand feature can comprise requirement of real-time, data package size etc., it can obtain according to concrete market demand, in practice, can be different market demands and define different application characteristics, such as, the requirement of real-time of definition app application is low or high, and the requirement of real-time of VOIP business is high.The requirement of market demand to network performance that requirement of real-time is high is high.The feature that different pieces of information is applied can store according to tableau format by terminal 10, such as, stores according to the mode of table 1:
Table 1
Apply Names Application characteristic Data package size
APP1 Real-time is low 64M
APP2 Real-time is high 128M
VOIP business Real-time is high —
…… ……
Network performance at least comprise following one of them: RSSI (intensity of Received signal strength), SNR (signal to noise ratio), chain-circuit time delay, BLER (BLER (block error rate)), packet loss etc.Wherein, RSSI, SNR, BLER can obtain according to cell information (such as, from the downstream signal of base station); The mode that chain-circuit time delay, packet loss send ping packet by terminal 10 through each network records.
Should be understood that when determining optimal network, also only can consider network performance.
When terminal 10 establishes after data service link carries out transfer of data according to above-mentioned flow process, (namely the first SIM card and the second SIM card have registered the voice-and-data service of first network and second network respectively, and activated and established the data service link of a SIM card), reportedly be input into Row sum-equal matrix by following two kinds of mode logarithms to switch, concrete:
Mode 1, data optimal way
See Fig. 5, the data optimal way of the embodiment of the present invention comprises:
Step 200: pre-set reselection conditions and switching condition.Such as, reselection conditions be at least following one of them: RSSI is less than that A, BLER are greater than B, packet loss is greater than C.Switching condition be at least following one of them: RSSI is greater than i and the RSSI difference of more excellent network and poor network is greater than x1 (such as, RSSI>100dBm, and RSSI sIM1-RSSI sIM2>NdBm), BLER is less than j and the BLER difference of poor network and more excellent network is greater than x1, packet loss is less than k and poor network is greater than x1 with the packet loss difference of more excellent network.
Step 202: detect current SIM card of carrying out transfer of data (such as, first SIM card) whether place network of network state meet reselection conditions (such as, BLER is greater than 10%), if meet, then detect the state parameter of another SIM card (such as, the second SIM card) place network.
Step 204: if state parameter meets switching condition (such as, RSSI>100dBm, and RSSI another sIM-RSSI current SIM>NdBm), then chain-circuit time delay measurement carried out to current network and start latency measurement timer (PING latency measurement timer); Otherwise then continue to use current network to carry out transfer of data, flow process terminates.
Step 206: data link is switched to another SIM card from current SIM card.
Step 208: successful switch also, after setting up data service link, carries out chain-circuit time delay measurement to new network.
Step 210: if latency measurement timer expiry detected, then terminate to measure the chain-circuit time delay of new network, and perform data link switchings and set up data service link carry out transfer of data again to switch back former network, flow process terminates.
Step 212: if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
According to the data optimal way of the embodiment of the present invention, can realize, when the network state residing for current SIM card of carrying out transfer of data is deteriorated, selects more excellent network to transmit, increasing network utilization and radio frequency resource utilance, improve Consumer's Experience.
Mode 2, timing optimal way
Timing optimal way is from the different of data optimal way, and timing optimal way carries out the switching entry condition of data link based on preferred timer, makes terminal 10 under good network environment, also can complete the preferred of data link and switch.Concrete, see Fig. 6, timing optimal way comprises:
Step 300: preferred timer is set.Before step 300, the first SIM card and the second SIM card have registered the voice-and-data service of first network and second network respectively, and activate and establish the data service link of a SIM card.
Whether good step 302: when preferred timer expiry, measure another network of network state.
Step 304: if another network of network (such as, RSSI>85dBm) in good condition, then start latency measurement timer and carry out chain-circuit time delay measurement to current network; Otherwise then continue to use current network to carry out transfer of data, flow process terminates.
Step 306: data link is switched to another SIM card from current SIM card.
Step 308: successful switch also, after setting up data service link, carries out chain-circuit time delay measurement to new network.
Step 310: if latency measurement timer expiry detected, then terminate to measure the chain-circuit time delay of new network, performs data link switchings and set up data traffic link carry out transfer of data again to switch back former network.
Step 312: if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network (such as, be greater than 500ms), then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
The embodiment of the present invention, by above-mentioned two kinds of modes, can realize constantly adjusting in data transmission procedure, and when avoiding a certain network to occur abnormal, the problems such as the Transmission caused, increase network utilization and radio frequency resource utilance, improve Consumer's Experience.
Below in conjunction with Fig. 7, the handoff procedure of the data service link of the invention described above embodiment is introduced.The data link handoff procedure of the embodiment of the present invention comprises:
Step 400: send a MSG message by current SIM card, and the PDP data link on current SIM card is hung up.A MSG message is herein used for informing network and suspends transmission data.
Step 402: send the 2nd MSG message, to ask to set up/recover current PDP data link network by another SIM card.
Step 404: after network replies, is activated by another SIM card and sets up PDP data link, completing the switching of data service link.
Concrete, be switched to the second SIM card 14 for transfer of data from the first SIM card 12 below, the process of the above-mentioned involved switching of the embodiment of the present invention be described in detail:
First, send MSG message by the first SIM card 12, and the PDP data link in the first SIM card is hung up.MSG message (such as, LTE network terminal ESR message) herein suspends transmission data for informing network.
Then, send MSG message by the second SIM card 14, to ask to set up/recover current PDP data link network.
After network replies, activated by the second SIM card 14 and set up PDP data link, completing the switching of data traffic link from the first SIM card 12 to the second SIM card 14.
According to the above-mentioned switching flow of the embodiment of the present invention, when carrying out data service and switching, do not need to carry out alternately between two SIM card, thus, when switching, the switching carrying out SIM card standard as prior art is not needed, shorten switching time, improve switching efficiency, real-time data service (such as, VOIP etc.) can be met to the requirement of real-time.
The data communications method of the embodiment of the present invention, by dual stack, can realize SIM card resident CS voice and PS data, services simultaneously, improve resource utilization; Two SIM cards can be realized and all can use the communication networks such as 3G/4G (such as, LTE, EVDO etc.); Can realize constantly adjusting in data transmission procedure, when avoiding a certain network to occur abnormal, the problems such as the Transmission caused, avoid occurring data service call drop, increase network utilization and radio frequency resource utilance, improve Consumer's Experience; Shorten switching time, improve switching efficiency, real-time data service (such as, VOIP etc.) can be met to the requirement of real-time.
In describing the invention, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In flow chart or any process otherwise described in an embodiment of the present invention or method describe and can be understood to, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by those skilled in the art described in embodiments of the invention.
Each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.

Claims (15)

1. a dual-card dual-standby terminal, is characterized in that, comprising: the first SIM card, the second SIM card, the first protocol stack, second protocol stack, data service module and ICP/IP protocol stack;
Described ICP/IP protocol stack comprises the first virtual WAN coffret and the second virtual WAN coffret;
Described first SIM card resides in PS territory and the CS territory of network by described first protocol stack;
Described second SIM card resides in PS territory and the CS territory of network by described second protocol stack;
Described first virtual WAN coffret is connected with described first protocol stack and second protocol stack respectively with the second virtual WAN coffret, for transmitting the data of the first protocol stack and second protocol stack;
Described data service module sets up PS data service link, to carry out transfer of data for selecting the network at the first SIM card or the second SIM card place.
2. dual-card dual-standby terminal according to claim 1, is characterized in that, described first protocol stack and second protocol stack support the various protocols such as LTE/WCDMA/GSM/TDSCDMA/CDMA/EVDO simultaneously.
3. dual-card dual-standby terminal according to claim 1, is characterized in that, described data service module comprises:
Whether detecting unit, have market demand to need to set up data service link for detecting;
Judging unit, for judging whether that existing SIM card establishes data service link;
Selected cell, if for not having SIM card to set up data service link, then selects optimal network to set up data service link to carry out transfer of data;
Determining unit, if establish data service link for existing SIM card, then according to market demand feature and each network of network performance of current request, determines optimal network, and judges whether the data service link set up is what set up by optimal network;
Switch unit, if be not be set up by optimal network for the judged result of determining unit, then performs data link from a SIM card to the switching of another SIM card.
4. dual-card dual-standby terminal according to claim 3, it is characterized in that, described switch unit is used for sending a MSG message by current SIM card, and the PDP data link on current SIM card is hung up, and send the 2nd MSG message, to ask to set up/recover current PDP data link network, after network replies by another SIM card, activated by another SIM card and set up PDP data link, completing the switching of data link.
5. dual-card dual-standby terminal according to claim 4, is characterized in that, described data service module also comprises:
Data preferred cell, for according to network performance switch data link, carries out transfer of data to utilize optimal network;
Timing preferred cell, for according to timing switch data link, carries out transfer of data to utilize optimal network.
6. dual-card dual-standby terminal according to claim 4, is characterized in that, described data preferred cell comprises:
Condition presets subelement, for pre-setting reselection conditions and switching condition;
Whether gravity treatment judgment sub-unit, meet reselection conditions for detecting current SIM card place network of network state of carrying out transfer of data, if meet, then detects the state parameter of another SIM card place network;
First switching judging subelement, if meet switching condition for state parameter, then carries out chain-circuit time delay measurement to current network and starts latency measurement timer (PING latency measurement timer); Otherwise then continue to use current network to carry out transfer of data;
First switches subelement, for transfer of data is switched to another SIM card from current SIM card;
First chain-circuit time delay measuring unit, after setting up data service link, carries out chain-circuit time delay measurement to new network for successful switch;
First detection sub-unit, if for latency measurement timer expiry being detected, then terminates to measure the chain-circuit time delay of new network, performs data link switchings and sets up data service link carry out transfer of data again to switch back former network;
Second detection sub-unit, if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
7. dual-card dual-standby terminal according to claim 4, is characterized in that, described timing preferred cell comprises:
Subelement is set, for arranging preferred timer;
Measure subelement, for when preferred timer expiry, whether well measure another network of network state;
Second switching judging subelement, if in good condition for another network of network, then start latency measurement timer and carries out chain-circuit time delay measurement to current network; Otherwise then continue to use current network to carry out transfer of data;
Second switches subelement, for data link is switched to another SIM card from current SIM card;
Second chain-circuit time delay measures subelement, after setting up data service link, carries out chain-circuit time delay measurement to new network for successful switch;
3rd detection sub-unit, if for latency measurement timer expiry being detected, then terminates to measure the chain-circuit time delay of new network, performs data link switchings and sets up data traffic link carry out transfer of data again to switch back former network;
4th detection sub-unit, if in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
8. a data communications method, is applied to dual-card dual-standby terminal, it is characterized in that, described dual-card dual-standby terminal comprises: the first SIM card, the second SIM card, the first protocol stack, second protocol stack, data service module and ICP/IP protocol stack; Described ICP/IP protocol stack comprises the first virtual WAN coffret and the second virtual WAN coffret; Described first virtual WAN coffret is connected with described first protocol stack and second protocol stack respectively with the second virtual WAN coffret;
Described first SIM card carries out network registry, to be resided in PS territory and the CS territory of network by described first protocol stack;
Described second SIM card carries out network registry, to be resided in PS territory and the CS territory of network by described second protocol stack;
Described data service module has detected that market demand needs to set up data service link, then select the network at the first SIM card or the second SIM card place to set up PS data service link, to carry out transfer of data;
Described first virtual WAN coffret and the second virtual WAN coffret transmit the data of the first protocol stack and second protocol stack respectively.
9. data communications method according to claim 8, is characterized in that, described method also comprises:
Described data service module has detected that market demand needs to set up data service link, then judge whether that existing SIM card establishes data service link, if do not have, then selects optimal network to set up data service link to carry out transfer of data;
If have, then judge whether the data service link set up is set up by optimal network, if not, then perform data link switching and set up data service link to carry out transfer of data to switch to optimal network.
10. data communications method according to claim 9, is characterized in that, according to market demand feature and network performance, determines optimal network.
11. data communications methods according to claim 9, is characterized in that, described method also comprises:
Reportedly be input into Row sum-equal matrix according to data optimal way or timing optimal way logarithm to switch.
12. data communications methods according to claim 11, is characterized in that, described data optimal way comprises:
Pre-set reselection conditions and switching condition;
Detect current SIM card place network of network state of carrying out transfer of data and whether meet reselection conditions, if meet, then detect the state parameter of another SIM card place network;
If state parameter meets switching condition, then chain-circuit time delay measurement carried out to current network and start latency measurement timer, and data link is switched to another SIM card from current SIM card;
Successful switch also, after setting up data service link, carries out chain-circuit time delay measurement to new network;
If detect, latency measurement timer surpasses, then terminate to measure the chain-circuit time delay of new network, performs data link switchings and sets up data service link carry out transfer of data again to switch back former network;
If in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
13. data communications methods according to claim 11, is characterized in that, described timing optimal way comprises:
Preferred timer is set;
When preferred timer expiry, whether well measure another network of network state;
If another network of network is in good condition, then starts latency measurement timer and chain-circuit time delay measurement is carried out to current network;
Data link is switched to another SIM card from current SIM card;
Successful switch also, after setting up data service link, carries out chain-circuit time delay measurement to new network;
If latency measurement timer expiry detected, then terminate to measure the chain-circuit time delay of new network, perform data link switchings and set up data traffic link carry out transfer of data again to switch back former network;
If in the timing of latency measurement timer, chain-circuit time delay measurement completes, and the chain-circuit time delay data of new network be better than before network, then carry out transfer of data by new network, otherwise, then perform data link switching and carry out transfer of data to switch back former network.
14. data communications methods according to claim described in any one of 9-13, it is characterized in that, described method also comprises:
Send a MSG message by current SIM card, and the PDP data link on current SIM card is hung up;
The 2nd MSG message is sent, to ask to set up/recover current PDP data link network by another SIM card;
After network replies, activated by another SIM card and set up PDP data link, to complete the switching of data link.
15. data communications methods according to claim described in 8, it is characterized in that, described method also comprises:
If arbitrary SIM card registered network serv-fail, then start registration timer, after timer expiry to be registered, more again complete the registration of this SIM card;
In the timing of registration timer, the radio frequency resource of described dual-card dual-standby terminal is all for the successful SIM card of another registered network.
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