WO2022246616A1 - 数据传输方法及通信装置 - Google Patents

数据传输方法及通信装置 Download PDF

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Publication number
WO2022246616A1
WO2022246616A1 PCT/CN2021/095616 CN2021095616W WO2022246616A1 WO 2022246616 A1 WO2022246616 A1 WO 2022246616A1 CN 2021095616 W CN2021095616 W CN 2021095616W WO 2022246616 A1 WO2022246616 A1 WO 2022246616A1
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WIPO (PCT)
Prior art keywords
data
sim card
channel
transmission channel
channels
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PCT/CN2021/095616
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English (en)
French (fr)
Inventor
夏俊
宋运涛
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202180005968.1A priority Critical patent/CN115735410A/zh
Priority to PCT/CN2021/095616 priority patent/WO2022246616A1/zh
Publication of WO2022246616A1 publication Critical patent/WO2022246616A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • 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

Definitions

  • the present application relates to the field of communication technologies, and in particular to a data transmission method and a communication device.
  • a terminal device such as a mobile phone
  • SIM subscriber identity module
  • DSDS dual standby
  • the terminal device uses the service packet scheduling characteristics of the fourth-generation (4th-generation, 4G) mobile communication network or the fifth-generation (5th-generation, 5G) mobile communication network to make the two SIM
  • the uplink data of the card is time-division multiplexed with the air interface uplink.
  • the terminal device chooses to send the uplink data of one SIM card first, and discards the uplink data of the other SIM card. Afterwards, the terminal device uses the retransmission mechanism to ensure the successful sending of the uplink data of another SIM card.
  • the terminal device retransmits a large amount of uplink data, resulting in a decrease in data throughput and a large transmission delay.
  • the present application provides a data transmission method and a communication device, which can improve data throughput and reduce data transmission delay.
  • an embodiment of the present application provides a data transmission method, which is applied to a terminal device configured with multiple SIM cards.
  • the method includes: sending the first data of the first SIM card through a first transmission channel, wherein the first transmission channel includes at least two channels, the first transmission channel overlaps with the second transmission channel, and the second transmission channel is used to transmit the first SIM card.
  • Second SIM card data is sent.
  • the first request information is sent through the first transmission channel, where the first request information requests to reduce the number of channels used to send the data of the first SIM card.
  • the first scheduling information is received through the first receiving channel, wherein the first scheduling information indicates resources for data transmission for the first SIM card, and the number of channels corresponding to the resources indicated by the first scheduling information is smaller than the number of first transmitting channels.
  • the second data is data to be transmitted after the first data.
  • the terminal device can fall back through multiple-input multiple-output (MIMO), that is, by sending the first request information, To request to reduce the number of channels used to transmit the data of the first SIM card.
  • MIMO multiple-input multiple-output
  • the terminal device After the terminal device receives the first scheduling information, it can reduce the number of channels for transmitting the data of the first SMI card, so that the data of the first SIM card and the data of the second SIM card are respectively sent by non-overlapping radio frequency channels, so as to realize
  • the non-competition of dual-card data transmission and the continuity in the time domain avoid frequent switching of radio frequency channels between the two cards, reduce data transmission delay, and improve data throughput.
  • the first request information includes a first sounding reference signal SRS.
  • the first SRS at least indicates the channel quality of some channels in the first transmission channel, and the first SRS is used to determine the first scheduling information. That is, the terminal device transmits the first SRS through the physical layer, so as to guide the first network device to implement MIMO fallback.
  • the number of first SRSs is equal to the number of third transmit channels. That is to say, the terminal device reports the number of radio frequency channels it expects to the first network device through the number of the first SRS.
  • the number of first SRSs is equal to the number of first transmit channels.
  • the number of the first SRS whose similarity with the preset coded signal is greater than the threshold is equal to the number of the third transmission channel, so that the first network device determines the channel quality based on the similarity between the first SRS and the preset coded signal, Therefore, the first network device is guided to implement MIMO fallback.
  • the first request information includes a first parameter.
  • the first parameter indicates the number of channels that can be used for data transmission in the first transmission channel, and the first parameter is used to determine the first scheduling information. That is to say, the terminal device sends a request to the first network device through protocol layer signaling, so as to implement MIMO fallback.
  • the number of channels indicated by the first parameter is equal to the number of the third transmission channels.
  • the data transmission method in the embodiment of the present application further includes: releasing the second link of the second transmission channel, where the second link is a link between the second SIM card and the second network device .
  • the second request information is sent through the third transmission channel, where the second request information requests recovery of the number of channels used for sending the data of the first SIM card.
  • the second scheduling information is received through the first receiving channel, wherein the second scheduling information indicates resources for data transmission for the first SIM card, and the number of channels corresponding to the resources indicated by the second scheduling information is equal to the number of the first transmitting channels.
  • the terminal device releases the second link of the second transmission channel.
  • the terminal device restores the number of channels for transmitting the data of the first SMI card by means of MIMO recovery, thereby ensuring the data throughput of the first SIM card.
  • the second request information includes a second SRS.
  • the second SRS indicates the channel quality of all channels in the first transmission channel, and the second SRS is used to determine the second scheduling information. That is to say, the terminal device reports the number of radio frequency channels it expects to the first network device through the number of the second SRS.
  • the number of second SRSs is equal to the number of first transmit channels.
  • the second request information includes a second parameter.
  • the second parameter indicates that all channels in the first transmission channel can be used for data transmission, and the second parameter is used to determine the second scheduling information. That is to say, the terminal device sends a request to the first network device through protocol layer signaling, so as to implement MIMO restoration.
  • sending the first request information through the first transmission channel includes: when the establishment time of the first link is later than the establishment time of the second link, sending the first request information through the first transmission channel request information.
  • the first link is a link between the first SIM card and the first network device
  • the second link is a link between the second SIM card and the second network device.
  • the terminal device firstly adjusts the radio frequency channel of the SIM card that initiates the service, that is, adjusts the radio frequency channel corresponding to the first SIM card, so as to ensure the stability of the service initiated earlier.
  • the data transmission method in the embodiment of the present application further includes: receiving a first handover instruction through a first receiving channel, where the first handover instruction indicates the target cell to be handed over to the first SIM card, and the first handover The frequency band of the target cell indicated by the instruction corresponds to the first transmission channel.
  • the second switching instruction is received through the second receiving channel, wherein the second switching instruction indicates a target cell to be switched for the second SIM card, and the frequency band of the target cell indicated by the second switching instruction corresponds to the second transmitting channel.
  • Sending the first request information through the first transmission channel includes: sending the first request information through the first transmission channel when the receiving moment of the first switching instruction is later than the receiving moment of the second switching instruction.
  • the terminal device firstly adjusts the radio frequency channel of the SIM card whose cell handover occurs, that is, adjusts the radio frequency channel corresponding to the first SIM card, so as to ensure the service stability of the SIM card handed over earlier.
  • the embodiment of the present application provides a data transmission method, which is applied to a terminal device equipped with multiple SIM cards.
  • the method includes: sending the data of the first SIM card through the first transmission channel, and sending the data of the second SIM card through the second transmission channel, wherein the first transmission channel and the second transmission channel do not overlap each other.
  • the switching instruction is received through the first receiving channel, wherein the switching instruction indicates a target cell to be switched to for the first SIM card, and the frequency band of the target cell indicated by the switching instruction corresponds to the second transmitting channel.
  • the working bandwidth of the second SIM card includes a frequency band corresponding to the first transmission channel
  • the data of the first SIM card is sent through the second transmission channel
  • the data of the second SIM card is sent through the first transmission channel.
  • the terminal device can adjust the radio frequency corresponding to the first SIM card and the second SIM card through channel switching.
  • channel so that the data of the first SIM card and the data of the second SIM card are sent separately using non-overlapping radio frequency channels, so as to realize the non-competition of dual-card data transmission and the continuity in the time domain, and avoid the radio frequency channels between the two cards. Switch between frequently, reduce data transmission delay, and improve data throughput.
  • the embodiment of the present application provides a data transmission method, which is applied to a terminal device configured with multiple SIM cards.
  • the method includes: the terminal device determines first data and second data, wherein both the first data and the second data belong to the data of the first SIM card, and the first data is sent through the first carrier, and the second data is sent through the second carrier For sending, the first carrier and the third carrier do not multiplex the same transmission channel, the second carrier and the third carrier multiplex the same transmission channel, and the third carrier is used to send the data of the second SIM card. Then, the terminal device sends the first data and the third data through the first carrier, and sends the fourth data through the second carrier, where the second data includes the third data and the fourth data.
  • the terminal device transfers part of the second data, that is, the third data, from the second carrier to the first carrier for transmission, so as to reduce the allocation amount of data of the first SIM card on the second carrier. Since the second carrier and the third carrier multiplex the same transmission channel, and the allocation of the data of the first SIM card on the second carrier is reduced, the collision probability of the uplink data of the dual cards is reduced, and the data is improved to a certain extent. Throughput, reducing data transmission delay.
  • the terminal device sends the first data and the third data through the first carrier, and sends the fourth data through the second carrier, including: when the first preset condition is met, the terminal device One carrier sends the first data and the third data, and the second carrier sends the fourth data.
  • the first preset condition includes at least one of the following: the carrier sending the data of the second SIM card is the third carrier; the priority of the data of the first SIM card is lower than the priority of the data of the second SIM card.
  • the terminal device when the preset condition satisfies the first item, that is, the data of the second SIM card can only be transmitted through the third carrier, the terminal device performs the above steps, which not only ensures that the first SIM card and the first network
  • the normal transmission of data between devices ensures the normal transmission of data between the second SIM card and the second network device, and also reduces the probability of uplink data conflicts between the dual cards.
  • the terminal device performs the above steps to ensure the transmission quality of high-priority services, and can also reduce the probability of dual-card uplink data conflicts .
  • the first carrier and the second carrier belong to the same network. That is to say, in the SA scenario, the terminal device can realize the data offloading in the card and in the model through the scheduling of the MAC layer.
  • the first carrier and the second carrier belong to different networks. That is to say, in the NSA scenario, the terminal device implements data distribution between the internal modules of the card through PDCP layer scheduling.
  • the embodiment of the present application provides a communication device, the device includes a transmission channel and a first reception channel, wherein the number of transmission channels is at least two.
  • the first transmission channel is used to send the first data of the first SIM card, wherein the first transmission channel includes at least two channels, the first transmission channel overlaps with the second transmission channel, and the second transmission channel is used to send the second SIM card card data.
  • the first transmission channel is further used to send first request information, where the first request information requests to reduce the number of channels used for sending data of the first SIM card.
  • the first receiving channel is used to receive first scheduling information, where the first scheduling information indicates resources for data transmission for the first SIM card, and the number of channels corresponding to the resources indicated by the first scheduling information is smaller than the number of first transmitting channels.
  • the third transmission channel is used to send the second data of the first SIM card, where the number of the third transmission channel is the same as the number of channels corresponding to the resources indicated by the first scheduling information, and the third transmission channel is different from the second transmission channel Overlapping, the second data is the data to be transmitted after the first data.
  • the first request information includes a first sounding reference signal SRS.
  • the first SRS at least indicates the channel quality of some channels in the first transmission channel, and the first SRS is used to determine the first scheduling information.
  • the number of first SRSs is equal to the number of third transmit channels.
  • the number of first SRSs is equal to the number of first transmission channels, wherein the number of first SRSs whose similarity with the preset coded signal is greater than a threshold is equal to the number of third transmission channels.
  • the first request information includes a first parameter.
  • the first parameter indicates the number of channels that can be used for data transmission in the first transmission channel, and the first parameter is used to determine the first scheduling information.
  • the number of channels indicated by the first parameter is equal to the number of the third transmission channels.
  • the second transmission channel is also used to release the second link, where the second link is a link between the second SIM card and the second network device.
  • the third transmission channel is also used to send the second request information, where the second request information requests recovery of the number of channels used for sending the data of the first SIM card.
  • the first receiving channel is also used to receive second scheduling information, wherein the second scheduling information indicates resources for data transmission for the first SIM card, and the number of channels corresponding to the resources indicated by the second scheduling information is equal to the number of first transmitting channels.
  • the first transmission channel is also used to send third data of the first SIM card, wherein the third data is data to be transmitted after the second data.
  • the second request information includes a second SRS.
  • the second SRS indicates the channel quality of all channels in the first transmission channel, and the second SRS is used to determine the second scheduling information.
  • the number of second SRSs is equal to the number of first transmit channels.
  • the second request information includes a second parameter.
  • the second parameter indicates that all channels in the first transmission channel can be used for data transmission, and the second parameter is used to determine the second scheduling information.
  • the first transmission channel is used to send the first request information, specifically including: sending the first request information when the establishment time of the first link is later than the establishment time of the second link .
  • the first link is a link between the first SIM card and the first network device
  • the second link is a link between the second SIM card and the second network device.
  • the first receiving channel is also used to receive the first switching instruction, wherein the first switching instruction indicates the target cell to be switched for the first SIM card, and the frequency band of the target cell indicated by the first switching instruction is Corresponds to the first emission channel.
  • the device also includes a second receiving channel for receiving a second switching instruction, wherein the second switching instruction indicates the target cell to be switched for the second SIM card, and the frequency band of the target cell indicated by the second switching instruction is the same as the second transmitting channel correspond.
  • the first transmitting channel is used to send the first request information, specifically including: sending the first request information when the receiving time of the first switching instruction is later than the receiving time of the second switching instruction.
  • the embodiment of the present application provides a communication device.
  • the device includes: a first transmitting channel, a second transmitting channel and a first receiving channel. Wherein, the first emission channel and the second emission channel do not overlap with each other.
  • the first transmission channel is used to send the data of the first SIM card.
  • the second transmission channel is used to send the data of the second SIM card.
  • the first receiving channel is used to receive a switching instruction.
  • the switching instruction indicates a target cell to be switched by the first SIM card, and the frequency band of the target cell indicated by the switching instruction corresponds to the second transmitting channel.
  • the second transmission channel is further used to send the data of the first SIM card when the working bandwidth of the second SIM card includes the frequency band corresponding to the first transmission channel.
  • the first transmission channel is further used to send data of the second SIM card when the working bandwidth of the second SIM card includes a frequency band corresponding to the first transmission channel.
  • the embodiment of the present application provides a communications device, where the device includes a processing unit and a sending unit.
  • the processing unit is used to determine the first data and the second data, wherein both the first data and the second data belong to the data of the first SIM card, and the first data is sent through the first carrier, and the second data is sent through the second carrier
  • the first carrier and the third carrier do not multiplex the same transmission channel, the second carrier and the third carrier multiplex the same transmission channel, and the third carrier is used to send the data of the second SIM card.
  • the sending unit is configured to send the first data and the third data through the first carrier, and send the fourth data through the second carrier, wherein the second data includes the third data and the fourth data.
  • the sending unit is configured to send the first data and the third data through the first carrier, and send the fourth data through the second carrier, specifically including: when the first preset condition is met, The first data and the third data are transmitted through the first carrier, and the fourth data is transmitted through the second carrier.
  • the first preset condition includes at least one of the following: the carrier sending the data of the second SIM card is the third carrier; the priority of the data of the first SIM card is lower than the priority of the data of the second SIM card.
  • the first carrier and the second carrier belong to the same network.
  • the first carrier and the second carrier belong to different networks.
  • the embodiment of the present application provides a communication device, the communication device includes a processor and a transceiver, the processor and the transceiver are used to implement the method provided by any design in the above first aspect, or the processor and the transceiver are used The method provided by any design in the above second aspect is implemented, or the processor and the transceiver are used to implement the method provided by any design in the above third aspect.
  • the processor is used to execute the processing action in the corresponding method
  • the transceiver is used to execute the receiving/sending action in the corresponding method.
  • the embodiment of the present application provides a computer program product, which, when the computer instructions are run on a computer, causes the computer to execute the method provided by any design in the first aspect, or execute the method provided by any design in the second aspect. method, or execute the method provided by any design in the third aspect.
  • the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and when the computer instructions are run on the computer, the computer executes any design provided in the first aspect. method, or execute the method provided by any design in the second aspect, or execute the method provided by any design in the third aspect.
  • the embodiment of the present application provides a chip, including: a processing circuit and a transceiver pin, and the processing circuit and the transceiver pin are used to implement the method provided by any design in the first aspect above, or to implement the method in the second aspect above.
  • the processing circuit is used to execute the processing action in the corresponding method
  • the transceiving pin is used to execute the receiving/sending action in the corresponding method.
  • FIG. 1 is a schematic diagram of a communication scenario provided by an embodiment of the present application.
  • Figure 2a is a schematic diagram of a scenario in which data of two SIM cards conflict in the time domain provided by the embodiment of the present application;
  • FIG. 2b is a schematic diagram of a scene of radio frequency channel switching provided by an embodiment of the present application.
  • FIG. 3a is a schematic diagram of a hardware structure of a terminal device provided in an embodiment of the present application.
  • FIG. 3b is a schematic diagram of a hardware structure of another terminal device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a mobile phone provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a data transmission scenario provided by an embodiment of the present application.
  • FIG. 8 is a flowchart of another data transmission method provided by the embodiment of the present application.
  • FIG. 9 is a schematic diagram of another data transmission scenario provided by the embodiment of the present application.
  • FIG. 10 is a schematic diagram of another data transmission scenario provided by the embodiment of the present application.
  • FIG. 11 is a schematic diagram of another data transmission scenario provided by the embodiment of the present application.
  • FIG. 12 is a flowchart of another data transmission method provided by the embodiment of the present application.
  • FIG. 13 is a schematic diagram of another data transmission scenario provided by the embodiment of the present application.
  • FIG. 14 is a schematic diagram of another data transmission scenario provided by the embodiment of the present application.
  • FIG. 15 is a schematic diagram of another data transmission scenario provided by the embodiment of the present application.
  • FIG. 16 is a schematic diagram of a dynamic shunting mechanism provided by the embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • SIM Subscriber identity module
  • a SIM card can be used as an identification of a mobile user's network identity.
  • the SIM card is used to store user data and complete user identity authentication.
  • One SIM card corresponds to one mobile user.
  • the SIM card can store user identifiers.
  • the subscriber identifier may be: an international mobile subscriber identification number (IMSI) or a subscription permanent identifier (SUPI).
  • SIM card can be implemented in the form of a physical card, such as a standard SIM card, Mini-SIM card, Micro SIM card, and Nano SIM card. This type of SIM card can also be called a universal subscriber identity module (USIM) card.
  • SIM card can also be called a universal subscriber identity module (USIM) card.
  • USB universal subscriber identity module
  • the SIM card can also be implemented in the form of a built-in chip, such as an embedded-SIM (eSIM) card.
  • eSIM embedded-SIM
  • the SIM card can also be implemented in the form of software.
  • MIMO Multiple-input multiple-output
  • MIMO fallback refers to a process in which the number of MIMO layers used to transmit data decreases.
  • MIMO recovery refers to the process of increasing the number of MIMO layers used to transmit data.
  • a layer refers to a degree of spatial multiplexing or a degree of spatial freedom.
  • the terminal device divides the data of one transmission block into two layers, and the data of the two layers are different, and the data of one transmission block is combined.
  • the number of MIMO layers indicates the minimum number of channels for transmitting data. For example, if the number of MIMO layers of the first SIM card is 2, the terminal device sends data of the first SIM card through at least two radio frequency Tx channels. When the number of MIMO layers decreases, the number of radio frequency Tx channels used to transmit data decreases. Conversely, when the number of MIMO layers increases, the number of radio frequency Tx channels used to transmit data increases.
  • a terminal device With the development of communication technology, many terminal devices (such as mobile phones) can usually install two SIM cards and have a dual SIM dual standby (DSDS) function.
  • a terminal device In order to save hardware costs, a terminal device is generally configured with only one radio frequency transmit (transmit, Tx) channel and two radio frequency receive (receive, Rx) channels.
  • the two SIM cards in the terminal device can monitor and paging in time-sharing, but cannot realize dual-card simultaneous communication, that is, dual SIM dual active (DSDA) function.
  • two SIM cards may be installed in the terminal device 110 of user A: a first SIM card and a second SIM card.
  • user A can use terminal device 110 to make a voice call with user B holding terminal device 120 through the first SIM card.
  • user C may use terminal device 130 to initiate a call to the second SIM card of terminal device 110 .
  • a voice paging request requesting to make a voice call with user A holding the terminal device 110 through the second SIM card.
  • the terminal equipment adopts dual-card uplink DSDS technology.
  • the core idea of this technology is: using the packet scheduling feature of 4G or 5G network services, the uplink data of two SIM cards can be time-division multiplexed into the air interface uplink. And, when the uplink data of two SIM cards conflicts, the terminal device chooses to send the data to be sent of one SIM card (taking the first SIM card as an example) first, and discards the other SIM card (taking the second SIM card as an example). For example) the data to be sent. Afterwards, the terminal device uses the retransmission mechanism to ensure the successful sending of the uplink data of the second SIM card.
  • the time slot #14 occupied by data 3 and the time slot #17 occupied by data 6 overlap in the time domain, therefore, the data 3 of the second SIM card and the data 6 of the first SIM card Collisions occur in the time domain.
  • the terminal device decides to send the data 6 of the first SIM card and discards the data 3 of the second SIM card. After that, the terminal device can retransmit the data 3 of the second SIM card only after receiving the feedback information from the network device.
  • the probability of collision between the uplink data of the two SIM cards increases, and the terminal device retransmits a large amount of uplink data, resulting in a decrease in data throughput.
  • the transmission delay is large.
  • no uplink data is sent in a part of the time period (such as the time period for punching), so as to meet the configuration requirements of the radio frequency device in the radio frequency Tx channel.
  • the time length for transmitting uplink data is shortened, and the probability of conflict retransmission is increased.
  • the granularity of resource scheduling is symbol granularity, resource scheduling is more flexible, and preemption between cards is frequent, which further increases the frequency of radio frequency Tx channel switching, which further increases the probability of conflict retransmission.
  • the terminal device For the second SIM card of the terminal device, on symbols #0 to symbol #2 in the Mth time slot corresponding to the second SIM card, the terminal device passes the radio frequency Tx channel Sending a physical uplink shared channel (PUSCH) to transmit uplink data of the second SIM card.
  • PUSCH physical uplink shared channel
  • the terminal device undergoes the first radio frequency channel switching, that is, the radio frequency Tx channel is no longer used to transmit the uplink data of the second SIM card, but is used to transmit Uplink data of the first SIM card.
  • the terminal device sends the PUSCH carrying the uplink data of the first SIM card through the radio frequency Tx channel.
  • the terminal device undergoes the second RF channel switching, that is, the RF Tx channel is no longer used to transmit the uplink data of the first SIM card, but is used to transmit Uplink data of the second SIM card.
  • the radio frequency channel is switched, for example, on symbol #8 of the Nth time slot corresponding to the first SIM card, the radio frequency Tx channel is unavailable, and the uplink data of the first SIM card and the second SIM card cannot be transmitted.
  • the terminal device sends the PUSCH carrying the uplink data of the second SIM card through the radio frequency Tx channel.
  • the terminal device undergoes the third RF channel switching, that is, the RF Tx channel is no longer used to transmit the uplink data of the second SIM card, and Used to transmit uplink data of the first SIM card.
  • the RF Tx channel is unavailable, and the uplink data of the first SIM card and the second SIM card cannot be transmitted. data.
  • the terminal device sends the PUSCH carrying the uplink data of the first SIM card through the radio frequency Tx channel.
  • the data throughput of the above-mentioned terminal equipment has dropped from 100M to 10M or even only a few M, and the user experience has dropped significantly.
  • the embodiment of the present application provides a data transmission method, the method is applied to a terminal device equipped with multiple SIM cards, the terminal device has at least two transmit channels, and the terminal device has at least two receive channels There are two.
  • the technical idea of the data transmission method is that the terminal device sends the first data of the first SIM card through the first transmission channel, wherein the first transmission channel includes at least two channels, the first transmission channel overlaps with the second transmission channel, and the second transmission channel overlaps with the second transmission channel.
  • the second transmission channel is used to send the data of the second SIM card. That is to say, the overlapping transmit channels transmit the data of the dual cards in a time division multiplexing (time division multiplexing, TDM) manner.
  • TDM time division multiplexing
  • the terminal device sends the first request information through the first transmission channel, and receives the first scheduling information through the first receiving channel, wherein the first request information requests to reduce the number of channels used to send the data of the first SIM card, the first The scheduling information indicates data transmission resources for the first SIM card, and the number of channels corresponding to the resources indicated by the first scheduling information is smaller than the number of first transmission channels.
  • the terminal device sends the second data of the first SIM card through the third transmission channel, wherein the number of the third transmission channel is the same as the number of channels corresponding to the resource indicated by the first scheduling information, and the third transmission channel is the same as the second transmission channel
  • the channels do not overlap, and the second data is data to be transmitted after the first data.
  • the terminal device can respectively send the data of the first SIM card and the data of the second SIM card through non-overlapping transmission channels, so as to realize the non-competition of dual-card data transmission and the continuity in the time domain, avoiding radio frequency Channels are frequently switched between the two cards, reducing data transmission delay and improving data throughput.
  • each radio frequency Tx channel has a working frequency band.
  • the channel corresponding to the resource indicated by the first scheduling information may be understood as that the first scheduling information indicates a time-frequency resource, where the frequency domain resource may be at least one frequency segment. If the frequency band indicated by the first scheduling information is within the working frequency band of a certain radio frequency Tx channel, then the radio frequency Tx channel is the channel corresponding to the resource indicated by the first scheduling information.
  • the technical solution in the prior art is referred to as a "time-division multiplexing transmission mode" hereinafter, and a technical solution provided by an embodiment of the present application is referred to as a "transmission mode for flexible scheduling of uplink radio frequency channels”.
  • Fig. 3a is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device 300 may include: a first SIM card interface 310, a second SIM card interface 320, a manager 340 coupled to the first SIM card interface 310 and the second SIM card interface 320 respectively, and the manager 340 is coupled to the processor 330 , and the processor 330 is connected to the transceiver 350 .
  • the foregoing processor 330 may be a base band processor (base band processor, BBP).
  • the transceiver 350 includes a radio frequency Rx1 channel, a radio frequency Rx2 channel, a radio frequency Tx1 channel and a radio frequency Tx2 channel.
  • the first SIM card interface 310 is used for installing the first SIM card and communicating with the first SIM card
  • the second SIM card interface 320 is used for installing the second SIM card and communicating with the second SIM card.
  • each SIM card configured by the terminal device can support any one of the following communication standards: global system for mobile communication (global system for mobile communication, GSM) standard, general system for mobile communication ( universal mobile telecommunications system (UMTS) standard, time division-synchronous code division multiple access (time division-synchronous code division multiple access, TD-SCDMA) standard, long term evolution (long term evolution, LTE) standard, code division multiple access (code division multiple access, CDMA) system and other systems.
  • GSM global system for mobile communication
  • UMTS universal mobile telecommunications system
  • TD-SCDMA time division-synchronous code division multiple access
  • LTE long term evolution
  • code division multiple access code division multiple access
  • SIM card interfaces are shown in FIG. 3a above, and the terminal device 300 may also be configured with more SIM card interfaces.
  • radio frequency Tx channel in this embodiment of the present application may also be referred to as a transmission channel, a Tx radio frequency resource, or a transmitter (transmitter).
  • a radio frequency Rx channel may also be called a receiving channel, an Rx radio frequency resource, or a receiver (receiver).
  • the radio frequency Tx1 channel and the radio frequency Rx1 channel may be recorded as TRX, and are used for sending and receiving data of the first SIM card.
  • the above radio frequency Rx2 channel is denoted as DRX to receive the data of the second SIM card.
  • the radio frequency Tx2 channel can not only send the data of the first SIM card, but also send the data of the second SIM card.
  • Fig. 4 shows a schematic diagram of a communication system provided by an embodiment of the present application.
  • the terminal device 300 may be installed with at least two SIM cards, such as a first SIM card and a second SIM card.
  • the first SIM card in the terminal device 300 can be the main card of the terminal device 300, and the second SIM card can be the secondary card of the terminal device 300; or, the second SIM card in the terminal device 300 can be the main card of the terminal device 300 , the first SIM card may be a secondary card of the terminal device 300 .
  • the terminal device 300 can use the first SIM card to establish a wireless connection with the first network device 401 . In this way, the terminal device 300 and the first network device 401 can transmit the data of the first SIM card to each other.
  • the terminal device 300 may use the second SIM card to establish a wireless connection with the second network device 402 .
  • the terminal device 300 and the network device 402 can transmit data of the second SIM card to each other.
  • the foregoing first network device 401 and the second network device 402 may be the same network device or different network devices.
  • the first SIM card and the second SIM card belong to the same operator and support the same network standard, then the first network device 401 and the second network device 402 may be the same network device.
  • the first SIM card and the second SIM card do not belong to the same operator, then the first network device 401 and the second network device 402 are not the same network device.
  • the embodiments of the present application are collectively described here, and will not be described in detail below.
  • the foregoing network equipment may be a base station or a base station controller for wireless communication, or the like.
  • the base station may include various types of base stations, such as micro base stations (also called small stations), macro base stations, relay stations, access points, etc., which are not specifically limited in this embodiment of the present application.
  • the base station may be an evolved base station (evolutional node B, eNB or e-NodeB) in long term evolution (long term evolution, LTE), an Internet of Things (internet of things, IoT) or a narrowband thing
  • the eNB in the network (narrow band-internet of things, NB-IoT), the base station in the 5G mobile communication network or the future evolution of the public land mobile network (public land mobile network, PLMN), the embodiment of this application does not make any restrictions on this .
  • the device for realizing the function of the network device may be a network device, or may be a device capable of supporting the network device to realize the function, such as a chip system.
  • the technical solution provided by the embodiment of the present application is described by taking the network device as an example for realizing the function of the network device.
  • the network equipment mentioned in this application such as a base station, generally includes a baseband unit (baseband unit, BBU), a remote radio unit (remote radio unit, RRU), an antenna, and a feeder for connecting the RRU and the antenna.
  • BBU baseband unit
  • RRU remote radio unit
  • the BBU is responsible for signal modulation.
  • the RRU is responsible for radio frequency processing.
  • the antenna is responsible for the conversion between the guided wave on the cable and the space wave in the air.
  • the distributed base station greatly shortens the length of the feeder between the RRU and the antenna, which can reduce signal loss and reduce the cost of the feeder.
  • the RRU plus antenna is relatively small and can be installed anywhere, making network planning more flexible.
  • all BBUs can be centralized and placed in the central office (CO). Through this centralized method, the number of base station equipment rooms can be greatly reduced, and supporting equipment, especially air conditioners, can be reduced. Energy consumption can reduce a lot of carbon emissions.
  • the scattered BBUs after the scattered BBUs are centralized into a BBU baseband pool, they can be managed and scheduled in a unified manner, making resource allocation more flexible. In this mode, all physical base stations evolve into virtual base stations. All virtual base stations share user data transmission and reception, channel quality and other information in the BBU baseband pool, and cooperate with each other to realize joint scheduling.
  • a base station may include a centralized unit (CU) and a distributed unit (DU).
  • the base station may also include an active antenna unit (active antenna unit, AAU).
  • the CU implements some functions of the base station, and the DU implements some functions of the base station.
  • the CU is responsible for processing non-real-time protocols and services, and realizing the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer.
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of radio link control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layer.
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this framework, high-level signaling, such as RRC layer signaling or PDCP layer signaling, can also be It is considered to be sent by DU, or sent by DU+AAU. It can be understood that the network device may be a device including one or more items of CU, DU, and AAU. In addition, the CU can be divided into network devices in the RAN, and the CU can also be divided into network devices in a core network (core network, CN), which is not limited here.
  • core network core network
  • a terminal device is a device with a wireless transceiver function.
  • Terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as on aircraft, balloons, and satellites, etc.).
  • the terminal equipment may be user equipment (user equipment, UE).
  • the UE includes a handheld device, a vehicle device, a wearable device or a computing device with a wireless communication function.
  • the UE may be a mobile phone (mobile phone), a tablet computer or a computer with a wireless transceiver function.
  • the terminal device can also be a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the device for realizing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to realize the function, such as a chip system.
  • the system-on-a-chip may be composed of chips, and may also include chips and other discrete devices.
  • the terminal device in this embodiment may be a mobile phone 500 .
  • the mobile phone 500 is taken as an example below to describe the embodiment in detail.
  • the illustrated mobile phone 500 is only an example of a terminal device supporting DR-DSDS, and that the mobile phone 500 may have more or fewer components than those shown in the figure, and two or more components may be combined components, or may have different component configurations.
  • the various components shown in Figure 5 may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.
  • the mobile phone 500 includes: a processor 510, a system-on-chip device 520, a display controller 530, a codec (CODEC) 540, a manager 550, a memory 560, an input device 570, a modem 580, a transceiver 590 and Power 591 etc.
  • a processor 510 a system-on-chip device 520
  • a display controller 530 a codec (CODEC) 540
  • a manager 550 a memory 560
  • an input device 570 a modem 580
  • transceiver 590 a transceiver 590 and Power 591 etc.
  • the structure of the mobile phone shown in FIG. 5 is not limited to the mobile phone, and may include more or less components than shown in the figure, or combine some components, or arrange different components.
  • the mobile phone 500 may further include a first SIM card interface 551 and a second SIM card interface 552 .
  • the first SIM card interface 551 is used for communicating with the first SIM card 553
  • the second SIM card interface 552 is used for communicating with the second SIM card 555 .
  • the first SIM card interface 551 and the second SIM card interface 552 can be SIM card connectors, which include a main body with a SIM card accommodating space, and a plurality of Unicom plugs for receiving the conductive terminals of the received SIM card. groove. Electrical signaling contact with the SIM card can be made through the conductive terminals and the slot.
  • Example interfaces may include serial or parallel (eg, 6-pin or 8-pin) connections.
  • SIM card sizes may be provided (eg, full-size SIM, mini-SIM, or micro-SIM).
  • handset 500 may not include multiple SIM card interfaces when multiple subscriptions are associated with a common identity module (eg, universal SIM).
  • the manager 550 is used to manage the first SIM card 553 and the second SIM card 554 .
  • the handset 500 may also include a speaker 541 and a microphone 542 coupled to a CODEC 540.
  • FIG. 5 also indicates that manager 550 may be coupled to processor 510 and to modem 580 in communication with transceiver 590 .
  • the transceiver 590 is connected with one or more antennas. An example of only one antenna is shown in FIG. 5 .
  • the transceiver 590 is coupled to multiple antennas and the modem 580 supports diversity, wherein one of the multiple antennas is a primary antenna and the other antenna is a secondary antenna.
  • the transceiver 590 can be an RF circuit, which can be used for sending and receiving information or receiving and sending signals during a call. After receiving the downlink information of the base station, it can be processed by the processor 510; in addition, the data related to the uplink can be sent to the base station.
  • RF circuits include, but are not limited to, antennas, at least one amplifier, transceivers, couplers, low noise amplifiers, duplexers, and the like. In addition, RF circuits can also communicate with the network and other mobile devices through wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile Communications, General Packet Radio Service, Code Division Multiple Access, Wideband Code Division Multiple Access, Long Term Evolution, Email, Short Message Service, etc.
  • the transceiver 590 shown in FIG. 5 may include two radio frequency Rx channels and two radio frequency Tx channels (the radio frequency Tx1 channel, the radio frequency Tx2 channel, the radio frequency Rx1 channel and the radio frequency Rx2 channel shown in FIG. 5 ).
  • the memory 560 can be used to store software programs and data.
  • the processor 510 executes various functions and data processing of the mobile phone 500 by running software programs and data stored in the memory 560 .
  • an instruction 561 is stored in the memory 560 .
  • Instructions 561 may be executed by processor 510 .
  • instructions 561 may include instructions executable by processor 510 to receive communication data associated with first SIM card 553 at an input of modem 580 .
  • the instruction 561 includes instructions executable by the processor 510 to receive communication data related to the second SIM card 554 at the input end of the modem 580 .
  • memory 560 can mainly comprise storage program area and storage data area, wherein, storage program area can store operating system, the application program (such as sound playback function, image playback function) etc. required by at least one function; The data created by the use of the mobile phone 500 (such as audio data, phone book) and the like.
  • the memory 560 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.
  • the memory 560 stores an operating system that enables the mobile phone 500 to run, such as an operating system developed by Apple Inc. operating system, developed by Google Open source operating system, developed by Microsoft Corporation operating system, etc.
  • the input device 570 (such as a touch screen) can be used to receive input digital or character information, and generate signal input related to user settings and function control of the mobile phone 500 .
  • the input device 570 may include a touch panel arranged on the front of the mobile phone 500, which can collect touch operations of the user on or near it (for example, the user uses any suitable object or accessory such as a finger or a stylus on the touch panel or Operation near the touch panel), and drive the corresponding connection device according to the preset program.
  • the touch panel may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 510, and can receive instructions from the processor 510 and execute them.
  • various types of touch panels such as resistive, capacitive, infrared, and surface acoustic wave, can be used to realize the touch panel.
  • the display 531 (ie, the display screen) can be used to display information input by the user or information provided to the user and a graphical user interface (graphical user interface, GUI) of various menus of the mobile phone 500 .
  • the display 531 may include a display panel disposed on the front of the mobile phone 500 .
  • the display panel may be configured in the form of a liquid crystal display, a light emitting diode, or the like.
  • the touch panel After the touch panel detects a touch operation on or near it, the touch panel transmits the information to the processor 510 to determine the touch event, and then the processor 510 provides corresponding visual output on the display panel according to the type of the touch event.
  • the touch panel and the display panel are used as two independent components to realize the input and input functions of the mobile phone 500, in some embodiments, the touch panel and the display panel can be integrated to realize the mobile phone 500. input and output functions, the integrated touch panel and display panel can be referred to simply as a touch display.
  • the above-mentioned touch panel can also be provided with a pressure-sensitive sensor, so that when the user performs a touch operation on the above-mentioned touch panel, the touch panel can also detect the pressure of the touch operation, and then the mobile phone 500 can This touch operation is detected more accurately.
  • Cell phone 500 may also include at least one sensor 543, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity light sensor is arranged on the front of the mobile phone 500.
  • the mobile phone 500 When the mobile phone 500 is moved to the ear , according to the detection of the proximity light sensor, the mobile phone 500 turns off the power supply of the display panel, so that the mobile phone 500 can further save power.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used for applications that recognize the posture of mobile phones (such as horizontal and vertical screen conversion, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; as for other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. Let me repeat.
  • CODEC 540, loudspeaker 541, and microphone 542 can provide the audio interface between the user and the mobile phone 500.
  • the CODEC 540 can transmit the electrical signal converted from the received audio data to the speaker 541, and the speaker 541 converts it into an audio signal output; on the other hand, the microphone 542 converts the collected audio signal into an electrical signal, which is received by the CODEC 540 converted into audio data, and then output the audio data to the processor 510 for further processing by the processor 510 , such as storing in the memory 560 .
  • the processor 510 is the control center of the mobile phone 500. It uses various interfaces and lines to connect the various parts of the entire mobile phone. By running or executing software programs stored in the memory 560 and calling data stored in the memory 560, the processes of the mobile phone 500 are executed. Various functions and processing data, so as to monitor the mobile phone as a whole.
  • the processor 510 may include one or more processing units; the processor 510 may also integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc. , the modem processor mainly handles wireless communications. It can be understood that the foregoing modem processor may not be integrated into the processor 510 .
  • the above mobile phone 500 may also include a Bluetooth module and a Wi-Fi module.
  • the Bluetooth module is used to exchange information with other devices through Bluetooth, a short-distance communication protocol.
  • the mobile phone 500 can establish a Bluetooth connection with a wearable electronic device (such as a smart watch) that also has a Bluetooth module through the Bluetooth module, so as to perform data interaction.
  • Wi-Fi is a short-distance wireless transmission technology.
  • the mobile phone 500 can help users send and receive emails, browse web pages, and access streaming media through the Wi-Fi module. It provides users with wireless broadband Internet access.
  • the handset 500 also includes a power source 591 (such as a battery) for powering various components.
  • the power supply can be logically connected to the processor 510 through the power management system, so that functions such as charging, discharging, and power consumption can be managed through the power management system. It can be understood that, in the following embodiments, the power supply 591 can be used to supply power to the display panel and the touch panel.
  • the methods in the following embodiments can all be implemented in the mobile phone 500 having the above hardware structure.
  • FIG. 6 it is a data transmission method 600 provided by the embodiment of the present application, and the method is applied to a terminal device equipped with at least two SIM cards.
  • the terminal device is configured with at least two radio frequency Tx channels, which are denoted as radio frequency Tx1 channel and radio frequency Tx2 channel respectively.
  • the terminal equipment is also configured with at least two radio frequency Rx channels, which are respectively denoted as radio frequency Rx1 channel and radio frequency Rx2 channel.
  • the method includes the following steps:
  • the terminal device sends data 1 to the first network device through the first transmission channel.
  • the first network device receives data 1 from the terminal device.
  • data 1 belongs to the data of the first SIM card.
  • the first SIM card can be recorded as card1.
  • the first emission channel includes at least two channels.
  • the channel number of the first transmit channel may be recorded as TxNum_card1.
  • the first transmission channel includes a radio frequency Tx1 channel and a radio frequency Tx2 channel, and the value of TxNum_card1 is 2.
  • the frequency band (band) where the modem corresponding to the first SIM card is new radio (new radio, NR) frequency band A, denoted as NR Band-A.
  • the terminal device sends data 2 to the second network device through the second transmission channel.
  • the second network device receives data 2 from the terminal device.
  • the second network device and the first network device are different network devices. It should be understood that, in the case that the first SIM card and the second SIM card access the same network, the second network device and the first network device may be the same network device.
  • data 2 belongs to the data of the second SIM card.
  • the second SIM card can be recorded as card2.
  • the number of the second transmitting channel may be one or multiple.
  • the channel number of the second transmit channel may be recorded as TxNum_card2.
  • the second transmission channel includes a radio frequency Tx2 channel, and the value of TxNum_card2 is 1.
  • the frequency band (band) where the modem corresponding to the second SIM card is located is denoted as NR Band-B.
  • the first transmission channel overlaps with the second transmission channel, including but not limited to the following three situations:
  • both channels of the first transmit channel are the same as all channels of the second transmit channel.
  • both the first transmission channel and the second transmission channel include a radio frequency Tx1 channel and a radio frequency Tx2 channel.
  • a part of channels in the first transmitting channel is the same as a part of channels in the second transmitting channel, and another part of channels in the first transmitting channel is different from another part of channels in the second transmitting channel.
  • the terminal device includes a radio frequency Tx1 channel, a radio frequency Tx2 channel, and a radio frequency Tx3 channel
  • the first transmission channel includes a radio frequency Tx1 channel and a radio frequency Tx2 channel
  • the second transmission channel includes a radio frequency Tx2 channel and a radio frequency Tx3 channel.
  • a part of channels in the first transmission channel are the same as all channels in the second transmission channel.
  • the terminal device includes a radio frequency Tx1 channel and a radio frequency Tx2 channel
  • the first transmission channel includes a radio frequency Tx1 channel and a radio frequency Tx2 channel
  • the second transmission channel includes a radio frequency Tx2 channel.
  • the number of channels of the first transmission channel and the number of channels of the second transmission channel meet: the sum of the number of channels of the first transmission channel and the number of channels of the second transmission channel is greater than the radio frequency channel capability of the terminal device.
  • the radio frequency channel capability of the terminal device refers to the number of radio frequency Tx channels configured on the terminal device. Taking Figure 3a as an example, the radio frequency channel capability of the terminal device is 2. The following formula is satisfied between the number of channels of the first transmission channel and the number of channels of the second transmission channel:
  • TxNum_card1 indicates the channel number of the first transmission channel
  • TxNum_card2 indicates the channel number of the second transmission channel
  • RF_TxCapability indicates the radio frequency channel capability of the terminal device.
  • the terminal device adopts time division multiplexing (time division multiplexing, TDM) transmission mode on some radio frequency channels (such as radio frequency Tx channel), which not only transmits the data of the first SIM card, but also transmits the data of the first SIM card.
  • TDM time division multiplexing
  • the terminal device can still solve the problem of uplink data conflict by performing S603 to S606.
  • the introduction of S603 to S606 is as follows:
  • the terminal device sends the first request information to the first network device through the first transmission channel.
  • the first network device receives the first request information from the terminal device.
  • the first request information requests to reduce the number of channels used to transmit data of the first SIM card. There are many ways to implement the first request information, including but not limited to the following two examples:
  • the first request information includes a first sounding reference signal (sounding reference signal, SRS), so as to guide the first network device to implement MIMO fallback.
  • SRS sounding reference signal
  • the first SRS at least indicates the channel quality corresponding to some channels in the first transmission channel.
  • the number of the first SRS is at least one.
  • the first SRS is a known signal used for channel estimation or channel detection, so the first network device can determine the first scheduling information based on the first SRS. Among them, the number of the first SRS is introduced as follows:
  • the number of the first SRS is consistent with the number of channels of the third transmission channel.
  • the number of channels of the first transmitting channel is two.
  • the number of channels used to transmit the first SIM card is reduced, the number of channels of the third transmission channel is 1, and the number of the first SRS is 1. That is to say, the terminal device transmits a first SRS to report the channel quality corresponding to a transmission channel to the first network device, so as to guide the first network device to implement MIMO fallback.
  • the number of the first SRS is consistent with the channel number of the first transmission channel.
  • the similarity between part of the first SRS and the preset coded signal is greater than a threshold, and the number of the part of the first SRS is equal to the channel number of the third transmission channel.
  • the channel number of the first transmitting channel is two.
  • the number of channels used to transmit the first SIM card is reduced, the number of channels for the third transmission channel is 1, the number of the first SRS is 2, and one of the two first SRSs is the first
  • the SRS is generated based on the base sequence configured by the first network device, and the other first SRS is not generated based on the base sequence configured by the first network device.
  • the first network device determines the channel quality based on the similarity between the first SRS and the preset coded signal, and performs MIMO fallback.
  • the description of the third transmission channel is as follows: the third transmission channel does not overlap with the second transmission channel.
  • the number of the third transmitting channel may be one or more. However, the number of channels of the third transmission channel is smaller than the number of channels of the first transmission channel, and the sum of the number of channels of the third transmission channel and the second transmission channel is less than or equal to the radio frequency channel capability of the terminal device. Still taking FIG. 3a as an example, the second transmission channel is the radio frequency Tx2 channel, and the third transmission channel is the radio frequency Tx1 channel. In this way, the terminal device sends the data of the first SIM card and the data of the second SIM card through different radio frequency channels.
  • the first request information includes a first parameter.
  • the first parameter indicates the number of channels in the first transmit channel that can be used for data transmission, so as to implement MIMO fallback.
  • the first request information may be UE assistance information (UE assistance information)
  • the first parameter may be a parameter in the UE assistance information (UE assistance information).
  • the first parameter can be at least one of the following:
  • reducedMIMO-LayersFR1-UL indicates the number of uplink MIMO layers to which the terminal equipment low frequency is to be reduced. Exemplarily, the number of uplink MIMO layers indicated by reducedMIMO-LayersFR1-UL is consistent with the number of channels of the third transmit channel.
  • reducedMIMO-LayersFR2-UL indicates the number of uplink MIMO layers to which the high frequency of the terminal equipment is to be reduced.
  • the number of uplink MIMO layers indicated by reducedMIMO-LayersFR2-UL is consistent with the number of channels of the third transmit channel.
  • the terminal device reports its expected MIMO layer number to the first network device, so as to implement MIMO fallback.
  • the MIMO fallback process is introduced by taking the first SIM as an example.
  • the terminal device can also implement the MIMO fallback process for the second SIM, and specifically adjust the radio frequency channel of which SIM card, the determination process of the terminal device is as follows:
  • the terminal device separately determines the channel numbers of the first transmission channel and the second transmission channel, including the following two situations:
  • the channel number of the first transmission channel is greater than 1, and the channel number of the second transmission channel is equal to 1.
  • the terminal device executes the MIMO fallback process for the first SIM card, that is, the terminal device executes S603.
  • the number of channels of the first transmission channel is greater than 1, and the number of channels of the second transmission channel is greater than 1.
  • the terminal device determines for which SIM card to perform the MIMO fallback process according to different scenarios. Exemplarily, the following shows the introduction of two scenarios:
  • the specific implementation of S603 includes: When the establishment time of the link is later than the establishment time of the second link, the terminal device sends the first request information to the first network device. Correspondingly, the first network device receives the first request information from the terminal device.
  • the first link is a link between the first SIM card and the first network device.
  • the second link is a link between the second SIM card and the second network device.
  • the establishment time of the link can indicate the establishment time of the service
  • the establishment time of the first link is later than the establishment time of the second link, it means that the service of the second SIM card initiated by the terminal device first, and the service of the second SIM card initiated later.
  • the business of the first SIM card the terminal device first adjusts the radio frequency channel of the SIM card that initiates the service, that is, adjusts the radio frequency channel corresponding to the first SIM card, so as to ensure the stability of the service initiated earlier.
  • the terminal device sends a request message to the second network device to request to reduce the The number of channels will not be repeated here.
  • the data transmission method in the embodiment of the present application includes the following steps:
  • Step 1 The first network device sends a first switching command to the terminal device.
  • the terminal device receives the first switching instruction from the first network device through the first receiving channel.
  • the first receiving channel may be one channel.
  • the first receiving channel includes a radio frequency Rx1 channel.
  • the first handover instruction indicates the target cell to be handed over to the first SIM card, and the frequency band of the target cell indicated by the first handover instruction corresponds to the first transmission channel.
  • Step 2 The second network device sends a second switching command to the terminal device.
  • the terminal device receives the second switching instruction from the second network device through the second receiving channel.
  • the second receiving channel may be one channel.
  • the second receiving channel includes a radio frequency Rx2 channel.
  • the second switching instruction indicates the target cell to be switched to by the second SIM card, and the frequency band of the target cell indicated by the second switching instruction corresponds to the second transmission channel.
  • S603 specifically includes: when the receiving time of the first switching instruction is later than the receiving time of the second switching instruction, the terminal device sends the first request information to the first network device.
  • the first network device receives the first request information from the terminal device.
  • the terminal device when the receiving moment of the first switching instruction is later than the receiving moment of the second switching instruction, it means that the terminal device first performs the cell switching process of the second SIM card, and then performs the cell switching process of the first SIM card. In this case, the terminal device first adjusts the radio frequency channel of the SIM card whose cell handover occurs later, that is, adjusts the radio frequency channel corresponding to the first SIM card, so as to ensure the service stability of the SIM card handed over earlier.
  • the terminal device sends request information to the second network device to request reducing The number of channels will not be repeated here.
  • the first network device sends the first scheduling information to the terminal device.
  • the terminal device receives the first scheduling information from the first network device through the first receiving channel.
  • the first scheduling information indicates data transmission resources of the first SIM card, and the number of channels corresponding to the transmission resources indicated by the first scheduling information is consistent with the number of channels of the third transmission channel.
  • the first scheduling information includes downlink control information (downlink control information, DCI). That is to say, the first network device indicates to the terminal device the transmission resources after MIMO fallback through the DCI.
  • the terminal device sends data 3 to the first network device through the third transmission channel.
  • the first network device receives data 3 from the terminal device.
  • data 3 is data to be transmitted after data 1 by the first SIM card.
  • the third transmission channel is a radio frequency Tx1 channel.
  • the terminal device sends data 3 through the radio frequency Tx1 channel.
  • the terminal device sends data 4 to the second network device through the second transmission channel.
  • the second network device receives data 4 from the terminal device.
  • data 4 is data to be transmitted by the second SIM card after data 2 .
  • the second transmission channel is a radio frequency Tx2 channel.
  • the terminal device sends data 4 through the radio frequency Tx2 channel.
  • the first network device may re-indicate transmission resources for the terminal device after performing S604, and the re-indicated transmission resources correspond to The first transmission channel, the terminal device retransmits the data of the first SIM card through the first transmission channel, and enters the TDM mode. In this case, the terminal device re-executes the MIMO fallback process. For details, refer to the introduction of S603 and S604, which will not be repeated here.
  • the terminal device if the data transmission of the second SIM card is finished, the terminal device quits the dual-card concurrency. In this case, the terminal device performs the MIMO recovery process, specifically refer to the steps shown in Figure 8:
  • the terminal device releases the second link of the second transmission channel.
  • the second link is a link between the second SIM card and the second network device. That is to say, the terminal device no longer transmits the data of the second SIM card, as shown in (a) in FIG. 9 , which is represented by a dotted line.
  • the terminal device sends the second request information to the first network device through the third transmission channel.
  • the first network device receives the second request information from the terminal device.
  • the second request information requests to restore the number of channels used to transmit the data of the first SIM card.
  • the second request information includes but not limited to the following two examples:
  • the second request information includes the second SRS, so as to guide the first network device to implement MIMO recovery.
  • the second SRS indicates the channel quality of all channels of the first transmission channel.
  • the number of the second SRS is the same as that of the first transmission channel.
  • the second SRS is a known signal used for channel estimation or channel detection, so the first network device can determine the second scheduling information based on the second SRS.
  • the number of channels of the first transmitting channel is two.
  • the number of channels used to transmit the first SIM card is increased.
  • the number of second SRSs is 2. That is to say, the terminal device transmits two second SRSs to report the channel qualities corresponding to the two transmission channels (such as radio frequency Tx1 channel and radio frequency Tx2 channel) to the first network device, thereby guiding the first network device to implement MIMO recovery .
  • the second request information includes a second parameter.
  • the second parameter indicates that the first transmit channel is capable of data transmission, so as to implement MIMO recovery.
  • the second request information may be UE auxiliary information, and the second reference may be reducedMIMO-LayersFR1-UL or reducedMIMO-LayersFR2-UL. For details, refer to the introduction of S603, which will not be repeated here.
  • the terminal device reports its expected MIMO layer number to the first network device, so as to implement MIMO recovery.
  • the first network device sends the second scheduling information to the terminal device.
  • the terminal device receives the second scheduling information from the first network device through the first receiving channel.
  • the second scheduling information indicates data transmission resources of the first SIM card, and the number of channels corresponding to the transmission resources indicated by the second scheduling information is consistent with the number of channels of the first transmission channel.
  • the second scheduling information is DCI.
  • the terminal device sends the data 5 to the first network device through the first transmission channel.
  • the first network device receives data 5 from the terminal device.
  • data 5 is data to be transmitted after data 1 by the first SIM card.
  • the first transmission channel includes a radio frequency Tx1 channel and a radio frequency Tx2 channel, and the terminal device sends data 5 through the radio frequency Tx1 channel and the radio frequency Tx2 channel respectively.
  • the terminal device can also realize MIMO recovery through the above S801 to S804, and recover the channel data of the data transmission of the first SIM card, so as to increase the data transmission rate of the first SIM card and increase the data transmission rate of the first SIM card. throughput.
  • Example 1 the mode of uplink radio frequency channel exchange. For example, when a terminal device switches between different cells, the terminal device can switch uplink radio frequency channels before and after cell switching across different frequency bands to achieve non-competitive dual-card data transmission and continuity in the time domain . Below, the following five steps are introduced:
  • Step 1 the terminal device sends data of the first SIM card to the first network device through the first transmission channel.
  • the first network device receives data from the first SIM card of the terminal device.
  • the frequency band of the first SIM card is new radio (new radio, NR) frequency band A, denoted as NR Band-A, NR Band-A works in the radio frequency on the Tx1 channel.
  • the first transmission channel is a radio frequency Tx1 channel.
  • Step 2 the terminal device sends the data of the second SIM card to the second network device through the second transmission channel.
  • the second network device receives data from the second SIM card of the terminal device.
  • the first emission channel and the second emission channel do not overlap with each other.
  • the frequency band of the second SIM card is NR frequency band B, denoted as NR Band-B, and NR Band-B works on the radio frequency Tx2 channel.
  • the second transmission channel is a radio frequency Tx2 channel.
  • Step 3 the first network device sends a switching instruction to the terminal device.
  • the terminal device receives the switching instruction from the first network device through the first receiving channel.
  • the handover instruction indicates the target cell to be handed over to the first SIM card.
  • the frequency band of the target cell indicated by the switching instruction corresponds to the second transmission channel.
  • the first SIM card of the terminal device undergoes cell switching, and the switched frequency band is NR frequency band C, which is denoted as NR Band-C.
  • NR Band-C works on the radio frequency Tx2 channel, but cannot work on the radio frequency Tx1 channel.
  • the terminal device determines that NR Band-B can also work on the radio frequency Tx1 channel, that is, the working bandwidth of the second SIM card includes the frequency band corresponding to the first transmission channel. In this way, the terminal device exchanges the radio frequency channel of the first SIM card and the radio frequency channel of the second SIM card, that is, the terminal device performs step 4 and step 5:
  • Step 4 the terminal device sends the data of the first SIM card to the first network device through the second transmission channel.
  • the first network device receives data from the first SIM card of the terminal device.
  • the terminal device sends the data of the first SIM card to the first network device through the radio frequency Tx2 channel.
  • Step 5 the terminal device sends the data of the second SIM card to the second network device through the first transmission channel.
  • the second network device receives data from the second SIM card of the terminal device.
  • the terminal device sends the data of the second SIM card to the second network device through the radio frequency Tx1 channel.
  • the terminal device sends dual-card uplink data through channel exchange to avoid uplink data transmission conflicts.
  • Example 2 the manner of adjusting the uplink radio frequency channel.
  • the terminal device is configured with at least three radio frequency Tx channels, which are respectively recorded as radio frequency Tx1 channel, radio frequency Tx2 channel, and radio frequency Tx3 channel.
  • the terminal device executes S601 and S602, that is, the frequency band NR Band-A of the first SIM card works on the radio frequency Tx1 channel and the radio frequency Tx2 channel, and the frequency band NR Band-B of the second SIM card works on the radio frequency Tx2 channel, as shown in Figure 11 (a) shown. Then, the terminal device determines that NR Band-B can also work on the radio frequency Tx3 channel.
  • the terminal device still transmits the data of the first SIM card through the first transmission channel (that is, the radio frequency Tx1 channel and the radio frequency Tx2 channel), and transmits the data of the second SIM card through the radio frequency Tx3 channel, so that the dual card data is transmitted in the time domain.
  • Concurrency as shown in (b) in Figure 11.
  • the embodiment of the present application also provides another technical solution, which is to reduce the probability of uplink data collision by adjusting the amount of data on different carriers.
  • the description of this technical solution is called "transmission mode of uplink data flexible scheduling”.
  • the "uplink data flexible scheduling transmission method” can be used to reduce the probability of uplink data conflict to a certain extent. See the steps shown in Figure 12:
  • the terminal device determines first data and second data.
  • both the first data and the second data belong to the data of the first SIM card, and the first data is sent through the first carrier, and the second data is sent through the second carrier.
  • the first carrier and the second carrier belong to the same network.
  • the first carrier is NR CC0 and the second carrier is NR CC1.
  • the transmission channel corresponding to the first carrier is a radio frequency Tx0 channel
  • the transmission channel corresponding to the second carrier is a radio frequency Tx1 channel.
  • the data of the first SIM card includes PDU-1 to PDU-j. Taking j as an even number as an example, the first data includes PDU-j/2+1 to PDU-j, and the second data includes PDU-1 to PDU-j/2.
  • the first carrier and the second carrier belong to different networks.
  • the second carrier is LTE CC1.
  • the introduction of the first carrier, the transmission channel, the first data, and the second data refer to the introduction of (a) in FIG. 13 , which will not be repeated here.
  • the terminal device sends the data of the second SIM card to the second network device through the third carrier.
  • the second network device receives data from the second SIM card of the terminal device through the third carrier.
  • the first carrier and the third carrier do not multiplex the same transmission channel, and the second carrier and the third carrier multiplex the same transmission channel.
  • the third carrier is NR CC2.
  • the second carrier and the third carrier multiplex the radio frequency Tx1 channel.
  • the terminal device transmits the uplink data of the dual cards through the same transmission channel (such as the radio frequency Tx1 channel in FIG. 13 and FIG. 14 ) in a time-division multiplexing transmission manner.
  • the first carrier may be described as a DSDA carrier
  • the second carrier may be described as a DSDS carrier.
  • the terminal device executes S1203 and S1204:
  • the terminal device sends the first data and the third data to the first network device through the first carrier.
  • the first network device receives the first data and the third data from the terminal device through the first carrier.
  • the third data belongs to the second data. Still taking (b) in FIG. 13 or (b) in FIG. 14 as an example, the third data includes PDU-k+1 ⁇ PDU-j/2.
  • the terminal device sends fourth data to the first network device through the second carrier.
  • the first network device receives fourth data from the terminal device through the second carrier.
  • the fourth data belongs to the second data. Still taking (b) in FIG. 13 or (b) in FIG. 14 as an example, the fourth data includes PDU-1 to PDU-k.
  • the terminal device transfers part of the second data, that is, the third data, from the second carrier to the first carrier for transmission, so as to reduce the allocation amount of the data of the first SIM card on the second carrier . Since the second carrier and the third carrier multiplex the same transmission channel, and the allocation amount of the data of the first SIM card on the second carrier is reduced, the collision probability of the uplink data of the dual cards is reduced.
  • the terminal device implements data offloading within the card and within the model through MAC layer scheduling.
  • the terminal device implements data distribution between the internal modules of the card through PDCP layer scheduling.
  • S1203 and S1204 are only executed when the terminal device determines that the preset condition is met.
  • the preset conditions include at least one of the following:
  • the carrier for sending the data of the second SIM card is the third carrier. That is to say, the data of the second SIM card is only transmitted through the third carrier. For the second SIM card there is no DSDA carrier.
  • the second item, the priority of the data of the first SIM card is lower than the priority of the data of the second SIM card.
  • data on the first SIM card belongs to non-voice service data
  • data on the second SIM card belongs to voice service data.
  • the terminal device executes S1203 and S1204, which ensures the communication between the first SIM card and the first network device.
  • Normal data transmission ensures normal data transmission between the second SIM card and the second network device, and can also reduce the probability of dual-card uplink data conflict.
  • the terminal device executes S1203 and S1204 to ensure the transmission quality of high-priority services and reduce the risk of dual-card uplink data conflicts. probability.
  • the physical layer of the terminal device monitors the collision rate of the second carrier (ie, the DSDS carrier), and reports it to the MAC layer.
  • the MAC splitting scheduling module adjusts the MAC splitting ratio according to the conflict rate, that is, determines the data volume of the third data, keeps the conflict rate within a reasonable range, and ensures the maximum potential of the uplink transmission of the two cards.
  • the terminal device can implement the following two methods: Method 1, the terminal device first completely stops the second data stream on the second carrier, so that there is no conflict in the data transmission of the second carrier, and then according to a certain step size Gradually adjust the diversion ratio. At the same time, the terminal device detects whether the conflict rates all meet the set effective window of the conflict rate.
  • the effective window is 10% to 12%. If it is lower than the minimum threshold of the effective window, such as 10% in Table 1, the data volume of the third data can be further reduced. On the contrary, if it is higher than the highest threshold of the effective window, such as 12% in Table 1, the data volume of the third data can be further increased. Since the channel environment where the terminal device is located always changes, the terminal device may adjust the data volume of the third data according to the collision rate. Wherein, the collision rate may also be replaced by a retransmission rate or a bit error rate, and the MAC may be replaced by PDCP.
  • the application layer establishes PS connections on both cards, and performs uplink data transmission at the same time.
  • the application layer can flexibly and dynamically split traffic between dual cards.
  • Example 1 the second carrier and the third carrier multiplex the same transmission channel.
  • the terminal device may stop scheduling service data of one of the first SIM card and the second SIM card. For example, when the throughput of the modem of the second SIM card is lower than the throughput of the modem of the first SIM card, the terminal device still sends the data of the first SIM card to the first network device through the first carrier and the second carrier.
  • the first network device receives data from the first SIM card of the terminal device through the first carrier and the second carrier.
  • the terminal device does not send the data of the second SIM card through the third carrier, so as to avoid conflicts between the uplink data of the two cards and avoid frequent data transmission.
  • Example 2 the dual card is a complete DSDA carrier. Introduced in two steps:
  • Step 1 the terminal device determines the first carrier and the second carrier.
  • the first carrier is used to transmit the first data of the first SIM card
  • the second carrier is used to transmit the second data of the second SIM card.
  • the first carrier and the second carrier do not multiplex the same transmission channel.
  • the first carrier is NR CC0
  • the second carrier is LTE CC1.
  • the data of the application layer includes PDU-1 ⁇ PDU-j.
  • the first data of the first SIM card includes PDUj/2+1 to PDU-j
  • the second data of the first SIM card includes PDU-1 to PDU-j/2.
  • the first carrier transmits the first data through the radio frequency Tx0 channel
  • the second carrier transmits the second data through the radio frequency Tx1 channel.
  • step 2 the terminal device determines the amount of data on each carrier according to the air interface transmission capability and the amount of authorized resources of each of the two carriers.
  • the two carriers in step 2 refer to the first carrier and the second carrier in step 1.
  • the air interface transmission capability is determined based on at least one of the following factors: network bandwidth, modulation order, or wireless link quality.
  • the air interface transmission capability of the first carrier is better than that of the second carrier, and the amount of authorized resources of the first carrier is greater than the amount of authorized resources of the second carrier. Therefore, the terminal The device increases the amount of data transmitted on the first carrier. That is to say, the terminal device transfers part of the second data (such as PDU-k+1 to PDU-j/2) from the second carrier to the first carrier for transmission, so that the uplink transmission of the two cards can be maximized. maximum potential.
  • the second data such as PDU-k+1 to PDU-j/2
  • the first one is the traffic distribution control mechanism between different carriers in the card and in the model, as shown in FIG. 16 . That is, the data volume of the uplink data on different carriers is adjusted through the MAC layer. For details, refer to the description of the MAC layer in S1203 and S1204.
  • the second type is the distribution control mechanism between different carriers in the card, as shown in FIG. 16 . That is, the data volume of the uplink data on different carriers is adjusted through the PDCP layer. For details, refer to the description about the PDCP layer in S1203 and S1204.
  • the third type is the distribution control mechanism between cards, as shown in Figure 16. That is, the data volume of uplink data on different carriers is adjusted through the application layer.
  • the terminal device includes hardware structures and/or software modules corresponding to each function. Combining the units and algorithm steps of each example described in the embodiments disclosed in this application, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or by computer software driving the hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present application.
  • the functional modules of the communication device may be divided according to the above method example.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.
  • the communication device includes a processing unit 1701 , a sending unit 1702 and a receiving unit 1703 .
  • the processing unit 1701 is configured to support the terminal device to execute S801 in FIG. 8, S1201 in FIG. 12, and so on.
  • the sending unit 1702 is configured to support the terminal device to execute S601, S602, S603, S605, S606 in FIG. 6, S802, S804 in FIG. 8, S1202-S1204 in FIG. 12, and so on.
  • the receiving unit 1703 is configured to support the terminal device to execute S604 in FIG. 6, S803 in FIG. 8, and so on.
  • the processing unit 1701 in FIG. 17 can be realized by the processor 330 in FIG. 3a, and the sending unit 1702 and the receiving unit 1703 in FIG. 17 can be realized by the transceiver 350 in FIG. 3a.
  • the first radio frequency channel , the second radio frequency channel, the third radio frequency channel, the first receiving channel, and the second receiving channel may refer to the descriptions in the corresponding method embodiments.
  • the embodiments of the present application further provide a computer program product carrying computer instructions, and when the computer instructions are run on the computer, the computer is made to execute the data transmission method provided by the foregoing method embodiments.
  • the embodiment of the present application further provides a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and when the computer instructions are run on the computer, the computer executes the data provided by the foregoing method embodiments. transfer method.
  • an embodiment of the present application further provides a chip, including: a processing circuit and a transceiver pin, and the processing circuit and the transceiver pin are used to implement the data transmission method provided in the foregoing method embodiments.
  • the processing circuit is used to execute the processing action in the corresponding method
  • the transceiving pin is used to execute the receiving/sending action in the corresponding method.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the available medium may be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (such as a solid state disk (Solid State Disk, SSD)) Wait.
  • a magnetic medium such as a floppy disk, a hard disk, a magnetic tape
  • an optical medium such as a digital video disc (Digital Video Disc, DVD)
  • a semiconductor medium such as a solid state disk (Solid State Disk, SSD)
  • the disclosed system, device and method can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple devices. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each functional unit may exist independently, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

Abstract

本申请提供了数据传输方法及通信装置，涉及通信技术领域，能够提高数据吞吐量，降低数据传输时延。该方法包括：终端设备通过第一发射通道发送第一SIM卡的第一数据，其中，第一发射通道包括至少两条通道，第一发射通道与第二发射通道重叠，第二发射通道用于发送第二SIM卡的数据。然后，通过第一接收通道接收第一调度信息，其中，第一调度信息为第一SIM卡指示数据传输的资源，第一调度信息指示的资源对应的通道数量小于第一发射通道的数量。之后，通过第三发射通道发送第一SIM卡的第二数据，其中，第三发射通道的数量与第一调度信息指示的资源对应的通道数量相同，且第三发射通道与第二发射通道不重叠，第二数据是第一数据之后待传输的数据。

Description

数据传输方法及通信装置 技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法及通信装置。
背景技术
目前，终端设备(如手机)通常能够安装两张用户识别模块(subscriber identity module，SIM)卡，具备双卡双待(dual SIM dual standby，DSDS)功能。由于终端设备仅配置了一条射频发射(transmit，Tx)通道和两条射频接收(receive，Rx)通道，所以，终端设备中的两张SIM卡可以分时监控寻呼，但无法实现双卡同时通信。
虽然，在双卡上行DSDS技术中，终端设备利用第四代(4th-generation，4G)移动通信网络或者第五代(5th-generation，5G)移动通信网络的业务分组调度特性，使两张SIM卡的上行数据分时复用空口上行链路。并且，在两张SIM卡的上行数据发生冲突时，终端设备选择先发送一张SIM卡的上行数据，而丢弃另一张SIM卡的上行数据。之后，终端设备再利用重传机制保证另一张SIM卡的上行数据的成功发送。
但是，若两张SIM卡的上行数据量大，或无线信道质量差，则上行数据发生冲突的概率增加，终端设备重传大量的上行数据，导致数据吞吐量下降，传输时延大。
发明内容
本申请提供一种数据传输方法及通信装置，能够提高数据吞吐量，降低数据传输时延。
为达到上述目的，本申请实施例采用如下技术方案：
第一方面，本申请实施例提供一种数据传输方法，该方法应用于配置有多个用户识别模块SIM卡的终端设备。该方法包括：通过第一发射通道发送第一SIM卡的第一数据，其中，第一发射通道包括至少两条通道，第一发射通道与第二发射通道重叠，第二发射通道用于发送第二SIM卡的数据。通过第一发射通道发送第一请求信息，其中，第一请求信息请求减少用于发送第一SIM卡的数据的通道数量。通过第一接收通道接收第一调度信息，其中，第一调度信息为第一SIM卡指示数据传输的资源，第一调度信息指示的资源对应的通道数量小于第一发射通道的数量。通过第三发射通道发送第一SIM卡的第二数据，其中，第三发射通道的数量与第一调度信息指示的资源对应的通道数量相同，且第三发射通道与第二发射通道不重叠，第二数据是第一数据之后待传输的数据。
基于上述技术方案，在两张SIM的上行数据发生冲突的场景下，终端设备即可通过多输入多输出(multiple-input multiple-output，MIMO)回退的方式，即通过发送第一请求信息，以请求减少用于传输第一SIM卡的数据的通道数量。在终端设备接收第一调度信息之后，即可减少传输第一SMI卡的数据的通道数量，从而采用互不重叠的射频通道分别发送第一SIM卡的数据和第二SIM卡的数据，以实现双卡数据发送的非竞争性和时域上的连续性，避免射频通道在两卡之间频繁切换，减少数据传输时延，提高数据吞吐量。
在一种可能的设计中，第一请求信息包括第一探测参考信号SRS。其中，第一SRS至少指示第一发射通道中部分通道的信道质量，第一SRS用于确定第一调度信息。也就是说，终端设备通过物理层发射第一SRS，以引导第一网络设备实现MIMO回退。
在一种可能的设计中，第一SRS的数量等于第三发射通道的数量。也就是说，终端设备通过第一SRS的数量，向第一网络设备上报自身期待的射频通道数量。
在一种可能的设计中，第一SRS的数量等于第一发射通道的数量。其中，与预设编码信号的相似度大于阈值的第一SRS的数量等于第三发射通道的数量，以使第一网络设备基于第一SRS的与预设编码信号的相似度，确定信道质量，从而引导第一网络设备实现MIMO回退。
在一种可能的设计中，第一请求信息包括第一参数。其中，第一参数指示第一发射通道中能够用于数据传输的通道数量，第一参数用于确定第一调度信息。也就是说，终端设备通过协议层的信令向第一网络设备发送请求，以实现MIMO回退。
在一种可能的设计中，第一参数指示的通道数量等于第三发射通道的数量。
在一种可能的设计中，本申请实施例数据传输方法还包括：释放第二发射通道的第二链路，其中，第二链路是第二SIM卡与第二网络设备之间的链路。通过第三发射通道发送第二请求信息，其中，第二请求信息请求恢复用于发送第一SIM卡的数据的通道数量。通过第一接收通道接收第二调度信息，其中，第二调度信息为第一SIM卡指示数据传输的资源，第二调度信息指示的资源对应的通道数量等于第一发射通道的数量。通过第一发射通道发送第一SIM卡的第三数据，其中，第三数据是第二数据之后待传输的数据。
也就是说，双卡退出业务并发时，如第二SIM卡的业务数据传输停止，终端设备释放第二发射通道的第二链路。终端设备采用MIMO恢复的方式，恢复传输第一SMI卡的数据的通道数量，从而保障第一SIM卡的数据吞吐量。
在一种可能的设计中，第二请求信息包括第二SRS。其中，第二SRS指示第一发射通道中全部通道的信道质量，第二SRS用于确定第二调度信息。也就是说，终端设备通过第二SRS的数量，向第一网络设备上报自身期待的射频通道数量。
在一种可能的设计中，第二SRS的数量等于第一发射通道的数量。
在一种可能的设计中，第二请求信息包括第二参数。其中，第二参数指示第一发射通道中全部通道均能够用于数据传输，第二参数用于确定第二调度信息。也就是说，终端设备通过协议层的信令向第一网络设备发送请求，以实现MIMO恢复。
在一种可能的设计中，通过第一发射通道发送第一请求信息，包括：在第一链路的建立时间晚于第二链路的建立时间的情况下，通过第一发射通道发送第一请求信息。其中，第一链路是第一SIM卡与第一网络设备之间的链路，第二链路是第二SIM卡与第二网络设备之间的链路。
也就是说，终端设备先调整后发起业务的SIM卡的射频通道，即调整第一SIM卡对应的射频通道，以保证在先发起业务的稳定性。
在一种可能的设计中，本申请实施例数据传输方法还包括：通过第一接收通道接收第一切换指令，其中，第一切换指令为第一SIM卡指示待切换的目标小区，第一切换指令指示的目标小区所在频段与第一发射通道对应。通过第二接收通道接收第二切换指令，其中，第二切换指令为第二SIM卡指示待切换的目标小区，第二切换指令指示的目标小区所在频段与第二发射通道对应。通过第一发射通道发送第一请求信息，包括：在第一切换指令的接收时刻晚于第二切换指令的接收时刻的情况下，通过第一 发射通道发送第一请求信息。
也就是说，终端设备先调整后发生小区切换的SIM卡的射频通道，即调整第一SIM卡对应的射频通道，以保证在先发生切换的SIM卡的业务稳定性。
第二方面，本申请实施例提供一种数据传输方法，该方法应用于配置有多个用户识别模块SIM卡的终端设备。该方法包括：通过第一发射通道发送第一SIM卡的数据，且通过第二发射通道发送第二SIM卡的数据，其中，第一发射通道与第二发射通道互不重叠。通过第一接收通道接收切换指令，其中，切换指令为第一SIM卡指示待切换的目标小区，切换指令指示的目标小区所在频段与第二发射通道对应。在第二SIM卡的工作带宽包括第一发射通道对应频段的情况下，通过第二发射通道发送第一SIM卡的数据，且通过第一发射通道发送第二SIM卡的数据。
基于上述技术方案，在终端设备移动过程中，发生小区切换，使得两张SIM的上行数据发生冲突，终端设备即可通过通道交换的方式，调整第一SIM卡和第二SIM卡分别对应的射频通道，从而采用互不重叠的射频通道分别发送第一SIM卡的数据和第二SIM卡的数据，以实现双卡数据发送的非竞争性和时域上的连续性，避免射频通道在两卡之间频繁切换，减少数据传输时延，提高数据吞吐量。
第三方面，本申请实施例提供一种数据传输方法，该方法应用于配置有多个用户识别模块SIM卡的终端设备。该方法包括：终端设备确定第一数据和第二数据，其中，第一数据和第二数据均属于第一SIM卡的数据，且第一数据通过第一载波发送，第二数据通过第二载波发送，第一载波与第三载波未复用同一发射通道，第二载波与第三载波复用同一发射通道，第三载波用于发送第二SIM卡的数据。然后，终端设备通过第一载波发送第一数据和第三数据，且通过第二载波发送第四数据，其中，第二数据包括第三数据和第四数据。
也就是说，终端设备将第二数据中的一部分数据，即第三数据，从第二载波转移到第一载波上发送，以减少第一SIM卡的数据在第二载波上的分配量。由于第二载波和第三载波复用同一发射通道，并且，第一SIM卡的数据在第二载波上的分配量减少，从而降低了双卡上行数据的冲突概率，在一定程度上提高了数据吞吐量，降低了数据传输时延。
在一种可能的设计中，终端设备通过第一载波发送第一数据和第三数据，且通过第二载波发送第四数据，包括：在满足第一预设条件的情况下，终端设备通过第一载波发送第一数据和第三数据，且通过第二载波发送第四数据。其中，第一预设条件包括以下至少一项：发送第二SIM卡的数据的载波为第三载波；第一SIM卡的数据的优先级低于第二SIM卡的数据的优先级。
基于上述技术方案，在预设条件满足第一项的情况下，即第二SIM卡的数据只能通过第三载波来传输，终端设备执行上述步骤，既保证了第一SIM卡与第一网络设备之间的数据正常传输，又保证了第二SIM卡与第二网络设备之间的数据正常传输，还能够降低双卡上行数据冲突的概率。在预设条件满足第二项的情况下，即第二SIM卡的数据优先级较高，终端设备执行上述步骤，以保证高优先级业务的传输质量，还能够降低双卡上行数据冲突的概率。
在一种可能的设计中，第一载波与第二载波属于同一网络。也就是说，在SA场 景下，终端设备可以通过MAC层调度，实现卡内模内的数据分流。
在一种可能的设计中，第一载波与第二载波属于不同网络。也就是说，在NSA场景下，终端设备通过PDCP层调度，实现卡内模间的数据分流。
第四方面，本申请实施例提供一种通信装置，该装置包括发射通道和第一接收通道，其中，发射通道的数量为至少两条。第一发射通道，用于发送第一SIM卡的第一数据，其中，第一发射通道包括至少两条通道，第一发射通道与第二发射通道重叠，第二发射通道用于发送第二SIM卡的数据。第一发射通道，还用于发送第一请求信息，其中，第一请求信息请求减少用于发送第一SIM卡的数据的通道数量。第一接收通道，用于接收第一调度信息，其中，第一调度信息为第一SIM卡指示数据传输的资源，第一调度信息指示的资源对应的通道数量小于第一发射通道的数量。第三发射通道，用于发送第一SIM卡的第二数据，其中，第三发射通道的数量与第一调度信息指示的资源对应的通道数量相同，且第三发射通道与第二发射通道不重叠，第二数据是第一数据之后待传输的数据。
在一种可能的设计中，第一请求信息包括第一探测参考信号SRS。其中，第一SRS至少指示第一发射通道中部分通道的信道质量，第一SRS用于确定第一调度信息。
在一种可能的设计中，第一SRS的数量等于第三发射通道的数量。
在一种可能的设计中，第一SRS的数量等于第一发射通道的数量，其中，与预设编码信号的相似度大于阈值的第一SRS的数量等于第三发射通道的数量。
在一种可能的设计中，第一请求信息包括第一参数。其中，第一参数指示第一发射通道中能够用于数据传输的通道数量，第一参数用于确定第一调度信息。
在一种可能的设计中，第一参数指示的通道数量等于第三发射通道的数量。
在一种可能的设计中，第二发射通道，还用于释放第二链路，其中，第二链路是第二SIM卡与第二网络设备之间的链路。第三发射通道，还用于发送第二请求信息，其中，第二请求信息请求恢复用于发送第一SIM卡的数据的通道数量。第一接收通道，还用于接收第二调度信息，其中，第二调度信息为第一SIM卡指示数据传输的资源，第二调度信息指示的资源对应的通道数量等于第一发射通道的数量。第一发射通道，还用于发送第一SIM卡的第三数据，其中，第三数据是第二数据之后待传输的数据。
在一种可能的设计中，第二请求信息包括第二SRS。其中，第二SRS指示第一发射通道中全部通道的信道质量，第二SRS用于确定第二调度信息。
在一种可能的设计中，第二SRS的数量等于第一发射通道的数量。
在一种可能的设计中，第二请求信息包括第二参数。其中，第二参数指示第一发射通道中全部通道均能够用于数据传输，第二参数用于确定第二调度信息。
在一种可能的设计中，第一发射通道，用于发送第一请求信息，具体包括：在第一链路的建立时间晚于第二链路的建立时间的情况下，发送第一请求信息。其中，第一链路是第一SIM卡与第一网络设备之间的链路，第二链路是第二SIM卡与第二网络设备之间的链路。
在一种可能的设计中，第一接收通道，还用于接收第一切换指令，其中，第一切换指令为第一SIM卡指示待切换的目标小区，第一切换指令指示的目标小区所在频段 与第一发射通道对应。该装置还包括第二接收通道，用于接收第二切换指令，其中，第二切换指令为第二SIM卡指示待切换的目标小区，第二切换指令指示的目标小区所在频段与第二发射通道对应。第一发射通道，用于发送第一请求信息，具体包括：在第一切换指令的接收时刻晚于第二切换指令的接收时刻的情况下，发送第一请求信息。
第五方面，本申请实施例提供一种通信装置。该装置包括：第一发射通道、第二发射通道和第一接收通道。其中，第一发射通道与第二发射通道互不重叠。第一发射通道，用于发送第一SIM卡的数据。第二发射通道，用于发送第二SIM卡的数据。第一接收通道，用于接收切换指令，切换指令为第一SIM卡指示待切换的目标小区，切换指令指示的目标小区所在频段与第二发射通道对应。第二发射通道，还用于在第二SIM卡的工作带宽包括第一发射通道对应频段的情况下，发送第一SIM卡的数据。第一发射通道，还用于在第二SIM卡的工作带宽包括第一发射通道对应频段的情况下，发送第二SIM卡的数据。
第六方面，本申请实施例提供一种通信装置，该装置包括处理单元和发送单元。其中，处理单元用于确定第一数据和第二数据，其中，第一数据和第二数据均属于第一SIM卡的数据，且第一数据通过第一载波发送，第二数据通过第二载波发送，第一载波与第三载波未复用同一发射通道，第二载波与第三载波复用同一发射通道，第三载波用于发送第二SIM卡的数据。发送单元，用于通过第一载波发送第一数据和第三数据，且通过第二载波发送第四数据，其中，第二数据包括第三数据和第四数据。
在一种可能的设计中，发送单元，用于通过第一载波发送第一数据和第三数据，且通过第二载波发送第四数据，具体包括：在满足第一预设条件的情况下，通过第一载波发送第一数据和第三数据，且通过第二载波发送第四数据。其中，第一预设条件包括以下至少一项：发送第二SIM卡的数据的载波为第三载波；第一SIM卡的数据的优先级低于第二SIM卡的数据的优先级。
在一种可能的设计中，第一载波与第二载波属于同一网络。
在一种可能的设计中，第一载波与第二载波属于不同网络。
第七方面，本申请实施例提供一种通信装置，所述通信装置包括处理器和收发器，处理器和收发器用于实现上述第一方面中任一设计提供的方法，或处理器和收发器用于实现上述第二方面中任一设计提供的方法，或处理器和收发器用于实现上述第三方面中任一设计提供的方法。其中，处理器用于执行相应方法中的处理动作，收发器用于执行相应方法中的接收/发送的动作。
第八方面，本申请实施例提供一种计算机程序产品，当该计算机指令在计算机上运行时，使得计算机执行第一方面中任一设计提供的方法，或执行第二方面中任一设计提供的方法，或执行第三方面中任一设计提供的方法。
第九方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质存储计算机指令，当该计算机指令在计算机上运行时，使得计算机执行第一方面中任一设计提供的方法，或执行第二方面中任一设计提供的方法，或执行第三方面中任一设计提供的方法。
第十方面，本申请实施例提供一种芯片，包括：处理电路和收发管脚，处理电路和收发管脚用于实现上述第一方面中任一设计提供的方法，或实现上述第二方面中任 一设计提供的方法，或实现上述第三方面中任一设计提供的方法。其中，处理电路用于执行相应方法中的处理动作，收发管脚用于执行相应方法中的接收/发送的动作。
需要说明的是，上述第四方面至第十方面中任一种设计所带来的技术效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
附图说明
图1为本申请实施例提供的通信场景示意图；
图2a为本申请实施例提供的两张SIM卡的数据在时域上发生冲突的场景示意图；
图2b为本申请实施例提供的射频通道切换的场景示意图；
图3a为本申请实施例提供的一种终端设备的硬件结构示意图；
图3b为本申请实施例提供的再一种终端设备的硬件结构示意图；
图4为本申请实施例提供的一种通信系统的示意图；
图5为本申请实施例提供的一种手机的结构示意图；
图6为本申请实施例提供的一种数据传输方法的流程图；
图7为本申请实施例提供的一种数据传输的场景示意图；
图8为本申请实施例提供的再一种数据传输方法的流程图；
图9为本申请实施例提供的再一种数据传输的场景示意图；
图10为本申请实施例提供的又一种数据传输的场景示意图；
图11为本申请实施例提供的又一种数据传输的场景示意图；
图12为本申请实施例提供的又一种数据传输方法的流程图；
图13为本申请实施例提供的又一种数据传输的场景示意图；
图14为本申请实施例提供的又一种数据传输的场景示意图；
图15为本申请实施例提供的又一种数据传输的场景示意图；
图16为本申请实施例提供的一种动态分流机制示意图；
图17为本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
在本申请的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是，本申请中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
为了便于理解本申请的技术方案，下面先对本申请所涉及的技术术语进行简单介绍。
1、用户识别模块(subscriber identity module，SIM)卡
在移动通信系统中，SIM卡可以作为移动用户的网络身份的标识。SIM卡用于存 储用户数据和完成用户身份鉴权。一张SIM卡对应一个移动用户。需要说明的是，SIM卡可以存储用户标识。例如，用户标识可以为：国际移动用户识别码(international mobile subscriber identification number，IMSI)或者签约永久标识(subscription permanent identifier，SUPI)。
SIM卡可以通过物理卡片的形式实现，例如标准SIM卡、Mini-SIM卡、Micro SIM卡、以及Nano SIM卡。这种类型的SIM卡又可以称为全球用户识别(universal subscriber identity module，USIM)卡。
SIM卡还可以以内置芯片的形式实现，例如嵌入式用户识别模块(embedded-SIM，eSIM)卡。
SIM卡还可以以软件的形式实现。
2、多输入多输出(multiple-input multiple-output，MIMO)回退、MIMO恢复
MIMO回退是指，用于传输数据的MIMO层数变少的过程。
MIMO恢复是指，用于传输数据的MIMO层数增多的过程。
其中，层指的是空间复用度或空间自由度。以MIMO层数为2为例，在终端设备进行层映射的情况下，终端设备将一个传输块的数据分成两层，且两层的数据不一样，合起来是一个传输块的数据。
需要说明的是，在本申请实施例中，MIMO层数指示了传输数据的最小通道数量。例如，若第一SIM卡的MIMO层数为2，则终端设备至少通过两路射频Tx通道发送第一SIM卡的数据。在MIMO层数变少的情况下，用于传输数据的射频Tx通道数量减少。反之，在MIMO层数增多的情况下，用于传输数据的射频Tx通道数量增多。
以上是对本申请实施例所涉及的术语的介绍，在此统一说明，以下不再赘述。
随着通信技术的发展，很多终端设备(如手机)通常能够安装两张SIM卡，具备双卡双待(dual SIM dual standby，DSDS)功能。为了节省硬件成本，终端设备通常仅配置了一条射频发射(transmit，Tx)通道和两条射频接收(receive，Rx)通道。终端设备中的两张SIM卡可以分时监控寻呼，但无法实现双卡同时通信，即双卡双通(dual SIM dual active，DSDA)功能。
然而，在实际应用中，用户在很多场景下具有双卡双通的需求。如图1所示，用户A的终端设备110中可以安装两个SIM卡：第一SIM卡和第二SIM卡。其中，用户B使用终端设备120向终端设备110的第一SIM卡发起语音寻呼请求后，用户A可以使用终端设备110通过第一SIM卡与持有终端设备120的用户B进行语音通话。如图1所示，用户A使用终端设备110通过第一SIM卡与持有终端设备120的用户B进行语音通话过程中，用户C可能会使用终端设备130向终端设备110的第二SIM卡发起语音寻呼请求，请求通过第二SIM卡与持有终端设备110的用户A进行语音通话。
为了解决上述终端设备无法实现双卡双通的问题，终端设备采用了双卡上行DSDS技术。该技术的核心思路为：利用4G或者5G的网络业务的分组调度特性，使两张SIM卡的上行数据分时复用空口上行链路。并且，在两张SIM卡的上行数据发生冲突时，终端设备选择先发送一张SIM卡(以第一SIM卡为例)的待发送数据，而丢弃另一张SIM卡(以第二SIM卡为例)的待发送数据。之后，终端设备再利用重传机制保证第二SIM卡的上行数据的成功发送。
示例性的，如图2a所示，数据3占用的时隙#14与数据6占用的时隙#17在时域上重叠，因此，第二SIM卡的数据3与第一SIM卡的数据6在时域上发生冲突。终端设备经过仲裁之后，决定发送第一SIM卡的数据6，而丢弃第二SIM卡的数据3。之后，终端设备在接收到网络设备的反馈信息，才能重传第二SIM卡的数据3。
但是，在两张SIM卡的上行数据量大，或无线信道质量差的情况下，两张SIM卡的上行数据发生冲突的概率增加，终端设备重传大量的上行数据，导致数据吞吐量下降，传输时延大。
另外，射频Tx通道在两张SIM卡之间切换的过程中，部分时间段(如用于打孔的时间段)内不发送上行数据，以满足射频Tx通道中射频器件的配置需求。如此，用于传输上行数据的时长缩小，又增加了冲突重传的概率。并且，在5G中，资源调度的粒度是符号粒度，资源调度更加灵活，卡间抢占频繁，进一步加大了射频Tx通道切换的频繁程度，使得冲突重传的概率进一步加大。
示例性的，如图2b所示，对于终端设备的第二SIM卡而言，在第二SIM卡对应的第M个时隙中的符号#0至符号#2上，终端设备通过射频Tx通道发送物理上行共享信道(physical uplink shared channel，PUSCH)，以传输第二SIM卡的上行数据。在第二SIM卡对应的第M个时隙中的符号#4上，终端设备发生第1次射频通道切换，即射频Tx通道不再用于传输第二SIM卡的上行数据，而用于传输第一SIM卡的上行数据。射频通道切换之后的一定时长内，如第二SIM卡对应的第M个时隙的符号#5上，射频Tx通道不可用，无法传输第一SIM卡和第二SIM卡的上行数据。超过一定时长之后，在第一SIM卡对应的第N个时隙的符号#0至符号#4上，终端设备通过该射频Tx通道发送承载第一SIM卡的上行数据的PUSCH。
在第一SIM卡对应的第N个时隙中的符号#7上，终端设备发生第2次射频通道切换，即射频Tx通道不再用于传输第一SIM卡的上行数据，而用于传输第二SIM卡的上行数据。射频通道切换之后的一定时长内，如第一SIM卡对应的第N个时隙的符号#8上，射频Tx通道不可用，无法传输第一SIM卡和第二SIM卡的上行数据。超过一定时长之后，在第二SIM卡对应的第(M+1)个时隙的符号#2至符号#6上，终端设备通过射频Tx通道发送承载第二SIM卡的上行数据的PUSCH。
在第二SIM卡对应的第(M+1)个时隙的符号#10上，终端设备发生第3次射频通道切换，即射频Tx通道不再用于传输第二SIM卡的上行数据，而用于传输第一SIM卡的上行数据。射频通道切换之后的一定时长内，如第二SIM卡对应的第(M+1)个时隙的符号#11上，射频Tx通道不可用，无法传输第一SIM卡和第二SIM卡的上行数据。超过一定时长之后，在第一SIM卡对应的第(N+1)个时隙的符号#6至符号#10上，终端设备通过射频Tx通道发送承载第一SIM卡的上行数据的PUSCH。
经测试，上述终端设备的数据吞吐量从百兆级别掉到十兆甚至只有几兆，用户体验明显下降。
可见，对于安装两张SIM卡的终端设备来说，存在两张SIM卡的上行数据冲突概率高、数据吞吐量低和发送时延较大的问题。
为了解决上述技术问题，本申请实施例提供一种数据传输方法，该方法应用于配置有多个SIM卡的终端设备，该终端设备的发射通道至少有两条，且该终端设备的接 收通道至少有两条。该数据传输方法的技术构思在于：终端设备通过第一发射通道发送第一SIM卡的第一数据，其中，第一发射通道包括至少两条通道，第一发射通道与第二发射通道重叠，第二发射通道用于发送第二SIM卡的数据。也就是说，重叠的发射通道分时复用(time division multiplexing，TDM)地传输双卡的数据。然后，终端设备通过第一发射通道发送第一请求信息，以及通过第一接收通道接收第一调度信息，其中，第一请求信息请求减少用于发送第一SIM卡的数据的通道数量，第一调度信息为第一SIM卡指示数据传输的资源，第一调度信息指示的资源对应的通道数量小于第一发射通道的数量。之后，终端设备通过第三发射通道发送第一SIM卡的第二数据，其中，第三发射通道的数量与第一调度信息指示的资源对应的通道数量相同，且第三发射通道与第二发射通道不重叠，第二数据是第一数据之后待传输的数据。这样一来，终端设备即可通过互不重叠的发射通道分别发送第一SIM卡的数据和第二SIM卡的数据，实现双卡数据发送的非竞争性和时域上的连续性，避免射频通道在两卡之间频繁切换，减少数据传输时延，提高数据吞吐量。
应理解，由于器件自身的属性，每一射频Tx通道具备一个工作频段。第一调度信息指示的资源对应的通道，可以理解为，第一调度信息指示时频资源，其中，频域资源可以是至少一个频段。若第一调度信息指示的频段处于某一射频Tx通道的工作频段内，则该射频Tx通道即为第一调度信息指示的资源对应的通道。
为了便于描述，下文中将现有技术的技术方案称为“分时复用发送方式”，本申请实施例提供的一种技术方案称为“上行射频通道灵活调度的发送方式”。
图3a为本申请实施例提供的一种终端设备的结构示意图。如图3a所示，终端设备300可以包括：第一SIM卡接口310、第二SIM卡接口320、与第一SIM卡接口310和第二SIM卡接口320分别耦合的管理器340、与管理器340耦合的处理器330，处理器330连接收发器350。其中，上述处理器330可以为基带处理器(base band processor，BBP)。如图3a所示，收发器350中包括射频Rx1通道、射频Rx2通道、射频Tx1通道和射频Tx2通道。
其中，上述第一SIM卡接口310用于安装第一SIM卡，与第一SIM卡通信，上述第二SIM卡接口320用于安装第二SIM卡，与第二SIM卡通信。
示例性的，本申请实施例中终端设备所配置的每张SIM卡均可以支持以下通信制式中的任意一种：全球移动通信系统(global system for mobile communication，GSM)制式、通用移动通信系统(universal mobile telecommunications system，UMTS)制式、时分同步码分多址(time division-synchronous code division multiple access，TD-SCDMA)制式、长期演进(long term evolution，LTE)制式、码分多址(code division multiple access，CDMA)制式等制。
可选的，上述图3a中仅示出两个SIM卡接口，终端设备300还可以配置更多的SIM卡接口。
应注意，本申请实施例中的射频Tx通道，也可以称为发射通道、Tx射频资源或发射器(transmitter)。射频Rx通道，也可以称为接收通道、Rx射频资源或接收器(receiver)。
示例性的，参见图3b，本申请实施例中可以将上述射频Tx1通道和射频Rx1通道记为TRX，用于收发第一SIM卡的数据。将上述射频Rx2通道记为DRX，以接收第二SIM卡的数据。射频Tx2通道既可以发送第一SIM卡的数据，又可以发送第二SIM卡的数据。
图4示出本申请实施例提供的通信系统的示意图。如图4所示，终端设备300可以安装至少两个SIM卡，例如第一SIM卡和第二SIM卡。终端设备300中的第一SIM卡可以为终端设备300的主卡，第二SIM卡可以为终端设备300的副卡；或者，终端设备300中的第二SIM卡可以为终端设备300的主卡，第一SIM卡可以为终端设备300的副卡。
终端设备300可以使用第一SIM卡来与第一网络设备401建立无线连接。这样一来，终端设备300可以与第一网络设备401之间相互传输第一SIM卡的数据。
相应的，终端设备300可以使用第二SIM卡来与第二网络设备402建立无线连接。这样一来，终端设备300可以与网络设备402之间相互传输第二SIM卡的数据。
上述第一网络设备401和第二网络设备402可以是同一个网络设备或者是不同的网络设备。例如，第一SIM卡和第二SIM卡属于同一个运营商，并且支持相同的网络制式，则第一网络设备401和第二网络设备402可以是同一个网络设备。再如，第一SIM卡和第二SIM卡不属于同一个运营商，则第一网络设备401和第二网络设备402不是同一个网络设备。本申请实施例在此统一说明，以下不再赘述。
上述网络设备可以是无线通信的基站或基站控制器等。例如，所述基站可以包括各种类型的基站，例如：微基站(也称为小站)，宏基站，中继站，接入点等，本申请实施例对此不作具体限定。在本申请实施例中，所述基站可以是长期演进(long term evolution，LTE)中的演进型基站(evolutional node B，eNB或e-NodeB)，物联网(internet of things，IoT)或者窄带物联网(narrow band-internet of things，NB-IoT)中的eNB，5G移动通信网络或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的基站，本申请实施例对此不作任何限制。本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统。在本申请实施例中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。
本申请所说的网络设备，例如基站，通常包括基带单元(baseband unit，BBU)、射频拉远单元(remote radio unit，RRU)、天线、以及用于连接RRU和天线的馈线。其中，BBU用于负责信号调制。RRU用于负责射频处理。天线用于负责线缆上导行波和空气中空间波之间的转换。一方面，分布式基站大大缩短了RRU和天线之间馈线的长度，可以减少信号损耗，也可以降低馈线的成本。另一方面，RRU加天线比较小，可以随地安装，让网络规划更加灵活。除了RRU拉远之外，还可以把BBU全部都集中起来放置在中心机房(central office，CO)，通过这种集中化的方式，可以极大减少基站机房数量，减少配套设备，特别是空调的能耗，可以减少大量的碳排放。此外，分散的BBU集中起来变成BBU基带池之后，可以统一管理和调度，资源调配更加灵活。这种模式下，所有的实体基站演变成了虚拟基站。所有的虚拟基站在BBU基带池中共享用户的数据收发、信道质量等信息，相互协作，使得联合调度得以实现。
在一些部署中，基站可以包括集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)。基站还可以包括有源天线单元(active antenna unit，AAU)。CU实现基站的部分功能，DU实现基站的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)、媒体接入控制(media access control，MAC)和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令或PDCP层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU、DU、AAU中一项或多项的设备。此外，CU可以划分为RAN中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，在此不做限制。
终端设备是一种具有无线收发功能的设备。终端设备可以被部署在陆地上，包括室内或室外、手持或车载；也可以被部署在水面上(如轮船等)；还可以被部署在空中(例如飞机、气球和卫星上等)。终端设备设备可以是用户设备(user equipment，UE)。其中，UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
以下实施例以手机作为例来说明终端设备如何实现实施例中的具体技术方案。如图5所示，本实施例中的终端设备可以为手机500。下面以手机500为例对实施例进行具体说明。
应该理解的是，图示手机500仅仅是支持DR-DSDS的终端设备的一个范例，并且手机500可以具有比图中所示出的更过的或者更少的部件，可以组合两个或更多的部件，或者可以具有不同的部件配置。图5中所示出的各种部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件、或硬件和软件的组合中实现。
如图5所示，手机500包括：处理器510、片上系统设备520、显示控制器530、编解码器(CODEC)540、管理器550、存储器560、输入设备570、调制解调器580、收发器590和电源591等。
本领域技术人员可以理解，图5中示出的手机结构并不构成对手机的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图5所示，手机500中还可以包括第一SIM卡接口551和第二SIM卡接口552。第一SIM卡接口551用于与第一SIM卡553通信，第二SIM卡接口552用于与第二SIM卡555通信。例如，第一SIM卡接口551和第二SIM卡接口552可以为SIM卡 连接器，其包括具有SIM卡收容空间的主体，以及用于对接收的SIM卡的导电端子进行接收的多个联通插槽。可以通过导电端子和插槽进行与SIM卡的电信令联系。示例接口可以包括串行或并行(例如，6针或8针)连接。此外，可以提供多种SIM卡尺寸(例如，全尺寸SIM、迷你SIM或者微型SIM)。在其他实施例中，当多种签约与通用身份模块相关联(例如，通用SIM)时，手机500可以不包括多个SIM卡接口。管理器550用于管理第一SIM卡553和第二SIM卡554。
如图5所示，手机500还可以包括耦合到编解码器CODEC 540的扬声器541和麦克风542。图5还指明了管理器550可以耦合到处理器510，且耦合到与收发器590进行通信的调制解调器580。其中，收发器590与一个或多个天线连接。图5中仅示出了一个天线的实例。
在特定的实施例中，收发器590与多个天线连接，调制解调器580支持分集，其中多个天线中的一个天线是主天线，另外的天线是辅天线。
收发器590可以为RF电路，该RF电路可用于收发信息或通话过程中，信号的接收和发送，可以将基站的下行信息接收后，给处理器510处理；另外，将涉及上行的数据发送给基站。通常，RF电路包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等器件。此外，RF电路还可以通过无线通信与网络和其他移动设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯系统、通用分组无线服务、码分多址、宽带码分多址、长期演进、电子邮件、短消息服务等。在本申请实施例中，图5所示的收发器590中可以包括两路射频Rx通道和两路射频Tx通道(图5所示的射频Tx1通道、射频Tx2通道、射频Rx1通道和射频Rx2通道)。
其中，存储器560可用于存储软件程序及数据。处理器510通过运行存储在存储器560的软件程序及数据，从而执行手机500的各种功能以及数据处理。例如，如图5所示，存储器560中保存有指令561。指令561可以由处理器510执行。例如，指令561可以包括可由处理器510执行，以在调制解调器580的输入端接收与第一SIM卡553相关通信数据的指令。再如，指令561包括可由处理器510执行，以在调制解调器580的输入端接收与第二SIM卡554相关通信数据的指令。
上述存储器560可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能)等；存储数据区可存储根据手机500的使用所创建的数据(比如音频数据、电话本)等。此外，存储器560可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。在以下实施例中，存储器560存储有使得手机500能运行的操作系统，例如苹果公司所开发的
Figure PCTCN2021095616-appb-000001
操作系统，谷歌公司所开发的
Figure PCTCN2021095616-appb-000002
开源操作系统，微软公司所开发的
Figure PCTCN2021095616-appb-000003
操作系统等。
输入设备570(如触摸屏)可用于接收输入的数字或字符信息，以及产生与手机500的用户设置以及功能控制有关的信号输入。具体地，输入设备570可以包括设置在手机500正面的触控面板，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板上或在触控面板附近的操作)，并根据 预先设定的程式驱动相应的连接装置。可选的，触控面板可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器510，并能接收处理器510发来的指令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板。
显示器531(即显示屏)可用于显示由用户输入的信息或提供给用户的信息以及手机500的各种菜单的图形用户界面(graphical user inter face，GUI)。显示器531可包括设置在手机500正面的显示面板。其中，显示面板可以采用液晶显示器、发光二极管等形式来配置。
当触控面板检测到在其上或附近的触摸操作后，传送给处理器510以确定触摸事件，随后处理器510根据触摸事件的类型在显示面板上提供相应的视觉输出。虽然在图5中，触控面板与显示面板是作为两个独立的部件来实现手机500的输入和输入功能，但是在某些实施例中，可以将触控面板与显示面板集成而实现手机500的输入和输出功能，集成后的触控面板与显示面板可以简称为触摸显示屏。
在另外的一些实施例中，上述触控面板还可以设置有压力感应传感器，这样用户在上述触控面板上进行触摸操作时，触控面板还能检测到该触摸操作的压力，进而手机500能够更准确地检测该触摸操作。
手机500还可以包括至少一种传感器543，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板的亮度，接近光传感器设置在手机500的正面，当在手机500移动到耳边时，根据接近光传感器的检测，手机500关闭显示面板的电源，这样手机500可以进一步节省电量。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏转化、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于手机500还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
CODEC 540、扬声器541，麦克风542可提供用户与手机500之间的音频接口。CODEC 540可将接收到的音频数据转换后的电信号，传输到扬声器541，由扬声器541转换为声音信号输出；另一方面，麦克风542将收集的声音信号转换为电信号，由CODEC 540接收后转换为音频数据，再将音频数据输出至处理器510，以由处理器510作进一步处理，如存储至存储器560。
处理器510是手机500的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器560内的软件程序，以及调用存储在存储器560内的数据，执行手机500的各种功能和处理数据，从而对手机进行整体监控。在一些实施例中，处理器510可包括一个或多个处理单元；处理器510还可以集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器510中。
上述手机500还可以包括蓝牙模块和Wi-Fi模块。蓝牙模块用于通过蓝牙这种短 距离通讯协议来与其他设备进行信息交互。例如，手机500可以通过蓝牙模块与同样具备蓝牙模块的可穿戴电子设备(例如智能手表)建立蓝牙连接，从而进行数据交互。Wi-Fi属于短距离无线传输技术，手机500可以通过Wi-Fi模块帮助用户收发电子邮件、浏览网页和访问流媒体等，它为用户提供了无线的宽带互联网访问。
手机500还包括给各个部件供电的电源591(比如电池)。电源可以通过电源管理系统与处理器510逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗等功能。可以理解的是，在以下实施例中，电源591可以用于给显示面板及触控面板供电。以下实施例中的方法均可以在具有上述硬件结构的手机500中实现。
如图6所示，为本申请实施例提供的一种数据传输方法600，该方法应用于配置至少两张SIM卡的终端设备。该终端设备至少配置两条射频Tx通道，分别记为射频Tx1通道和射频Tx2通道。该终端设备还至少配置两条射频Rx通道，分别记为射频Rx1通道和射频Rx2通道。该方法包括以下步骤：
S601、终端设备通过第一发射通道向第一网络设备发送数据1。相应的，第一网络设备接收来自终端设备的数据1。
其中，数据1属于第一SIM卡的数据。第一SIM卡可以记为card1。
其中，第一发射通道包括至少两条通道。第一发射通道的通道数量可以记为TxNum_card1。示例性的，以图3a为例(或以图7中的(a)为例)，第一发射通道包括射频Tx1通道和射频Tx2通道，TxNum_card1的取值为2。第一SIM卡对应的调制解调器所在频段(band)为新无线(new radio，NR)的频段A，记为NR Band-A。
S602、终端设备通过第二发射通道向第二网络设备发送数据2。相应的，第二网络设备接收来自终端设备的数据2。
其中，第二网络设备与第一网络设备是不同的网络设备。应理解，在第一SIM卡与第二SIM卡接入同一网络的情况下，第二网络设备与第一网络设备可以是同一网络设备。
其中，数据2属于第二SIM卡的数据。第二SIM卡可以记为card2。
其中，第二发射通道的通道数量可以是一条，也可以是多条。第二发射通道的通道数量可以记为TxNum_card2。示例性的，以图3a为例(或以图7中的(b)为例)，第二发射通道包括射频Tx2通道，TxNum_card2的取值为1。第二SIM卡对应的调制解调器所在频段(band)记为NR Band-B。
其中，第一发射通道与第二发射通道重叠，包括但不限于如下3种情况：
情况1，第一发射通道的全部通道与第二发射通道的全部通道相同。例如，第一发射通道与第二发射通道均包括射频Tx1通道和射频Tx2通道。
情况2，第一发射通道中的一部分通道与第二发射通道中的一部分通道相同，且第一发射通道中的另一部分通道与第二发射通道中的另一部分通道不同。例如，在终端设备包括射频Tx1通道、射频Tx2通道和射频Tx3通道的情况下，第一发射通道包括射频Tx1通道和射频Tx2通道，第二发射通道包括射频Tx2通道和射频Tx3通道。
情况3，第一发射通道中的一部分通道与第二发射通道中的全部通道相同。例如，在终端设备包括射频Tx1通道和射频Tx2通道的情况下，第一发射通道包括射频Tx1通道和射频Tx2通道，第二发射通道包括射频Tx2通道。
示例性的，第一发射通道的通道数量和第二发射通道的通道数量满足：第一发射通道的通道数量与第二发射通道的通道数量之和大于终端设备的射频通道能力。终端设备的射频通道能力是指，终端设备配置的射频Tx通道数量。以图3a为例，终端设备的射频通道能力为2。第一发射通道的通道数量和第二发射通道的通道数量之间满足如下公式：
TxNum_card1+TxNum_card2＞RF_TxCapability    公式(1)
其中，TxNum_card1表示第一发射通道的通道数量，TxNum_card2表示第二发射通道的通道数量，RF_TxCapability表示终端设备的射频通道能力。
通过上述公式(1)可知，终端设备在某些射频通道(如射频Tx通道)上，采用分时复用(time division multiplexing，TDM)发送方式，既传输了第一SIM卡的数据，又传输了第二SIM卡的数据，如图7中的(b)所示。
需要说明的是，第一发射通道的通道数量与第二发射通道的通道数量之和小于或等于终端设备的射频通道能力，即第一发射通道和第二发射通道的通道数量不满足上述公式(1)的情况下，但第一发射通道与第二发射通道重叠，终端设备仍可以通过执行S603至S606来解决上行数据冲突的问题。其中，S603至S606的介绍如下：
S603、终端设备通过第一发射通道向第一网络设备发送第一请求信息。相应的，第一网络设备接收来自终端设备的第一请求信息。
其中，第一发射通道的说明可以参见S601的介绍，此处不再赘述。第一请求信息请求减少用于传输第一SIM卡的数据的通道数量。第一请求信息的实现方式有多种，包括但不限于如下两种示例：
示例一、第一请求信息包括第一探测参考信号(sounding reference signal，SRS)，以引导第一网络设备实现MIMO回退。其中，第一SRS至少指示第一发射通道中部分通道对应的信道质量。第一SRS的数量为至少一个。对于第一网络设备而言，第一SRS是用于信道估计或信道探测的已知信号，所以，第一网络设备基于第一SRS能够确定第一调度信息。其中，第一SRS的数量介绍如下：
例如，第一SRS的数量与第三发射通道的通道数量一致。以图3a为例，第一发射通道的通道数量为2。在采用MIMO回退的方式下，用于传输第一SIM卡的通道数量减少，第三发射通道的通道数量为1，第一SRS的数量为1。也就是说，终端设备通过发射一个第一SRS，以向第一网络设备上报一个发射通道对应的信道质量，从而引导第一网络设备实现MIMO回退。
再如，第一SRS的数量与第一发射通道的通道数量一致。其中，部分第一SRS与预设编码信号的相似度大于阈值，且上述部分第一SRS的数量等于第三发射通道的通道数量。仍以图3a为例，第一发射通道的通道数量为2。在采用MIMO回退的方式下，用于传输第一SIM卡的通道数量减少，第三发射通道的通道数量为1，第一SRS的数量为2，且两个第一SRS中有一个第一SRS是基于第一网络设备配置的基序列生成的，另一个第一SRS未基于第一网络设备配置的基序列生成。如此，在两个第一SRS中，基于配置的基序列生成的第一SRS与预设编码信号的相似度大于阈值，另一第一SRS(未基于配置的基序列生成的第一SRS)与预设编码信号的相似度小于阈值。如此，第一网络设备基于第一SRS的与预设编码信号的相似度，确定信道质量，执行 MIMO回退。
需要说明的是，第三发射通道的说明如下：第三发射通道与第二发射通道不重叠。第三发射通道的数量可以是一条，也可以是多条。但第三发射通道的通道数量小于第一发射通道的通道数，且第三发射通道与第二发射通道的通道数量之和小于或等于终端设备的射频通道能力。仍以图3a为例，第二发射通道为射频Tx2通道，第三发射通道为射频Tx1通道。如此，终端设备通过不同的射频通道发送第一SIM卡的数据和第二SIM卡的数据。
示例二、第一请求信息包括第一参数。其中，第一参数指示第一发射通道中能够用于数据传输的通道数量，以实现MIMO回退。
例如，第一请求信息可以是UE辅助信息(UE assistance information)，第一参数可以是UE辅助信息(UE assistance information)中的参数。第一参数可以是以下至少一项：
第一项、reducedMIMO-LayersFR1-UL。其中，reducedMIMO-LayersFR1-UL指示终端设备低频要降低到的上行MIMO层数。示例性的，reducedMIMO-LayersFR1-UL指示的上行MIMO层数与第三发射通道的通道数量一致。
第二项、reducedMIMO-LayersFR2-UL。其中，reducedMIMO-LayersFR2-UL指示终端设备高频要降低到的上行MIMO层数。示例性的，reducedMIMO-LayersFR2-UL指示的上行MIMO层数与第三发射通道的通道数量一致。
也就是说，终端设备向第一网络设备上报自身期待的MIMO层数，以实现MIMO回退。
需要说明的是，在S603中，以第一SIM为例介绍了MIMO回退过程。当然，终端设备也可以针对第二SIM来实现MIMO回退过程，具体调整哪一SIM卡的射频通道，终端设备的确定过程如下：
首先，终端设备分别确定第一发射通道和第二发射通道的通道数量，包括如下两种情况：
第一种情况、第一发射通道的通道数量大于1，且第二发射通道的通道数量等于1。终端设备针对第一SIM卡执行MIMO回退过程，即终端设备执行S603。
第二种情况、第一发射通道的通道数量大于1，且第二发射通道的通道数量大于1。终端设备针对不同的场景来确定针对哪一SIM卡执行MIMO回退过程。示例性的，下面示出了两种场景的介绍：
第一种场景，在第一SIM卡和第二SIM卡的业务建立时间不同的情况下，仍以调整第一SIM卡对应的射频通道数量进行介绍，S603的具体实现包括：在第一链路的建立时间晚于第二链路的建立时间的情况下，终端设备向第一网络设备发送第一请求信息。相应的，第一网络设备接收来自终端设备的第一请求信息。其中，第一链路是第一SIM卡与第一网络设备之间的链路。第二链路是第二SIM卡与第二网络设备之间的链路。
由于链路的建立时间可以指示业务的建立时间，所以，若第一链路的建立时间晚于第二链路的建立时间，则表明终端设备先发起的第二SIM卡的业务，后发起的第一SIM卡的业务。此种情况下，终端设备先调整后发起业务的SIM卡的射频通道，即调 整第一SIM卡对应的射频通道，以保证在先发起业务的稳定性。
容易理解的是，在第二链路的建立时间晚于第一链路的建立时间的情况下，终端设备向第二网络设备发送请求消息，以请求减少用于传输第二SIM卡的数据的通道数量，此处不再赘述。
第二种场景，在第一SIM卡和第二SIM卡发生小区切换的时间不同的情况下，本申请实施例数据传输方法包括如下步骤：
步骤1、第一网络设备向终端设备发送第一切换命令。相应的，终端设备通过第一接收通道接收来自第一网络设备的第一切换指令。
其中，第一接收通道可以是一条通道。示例性的，以图3a为例(或以图7中的(a)为例)，第一接收通道包括射频Rx1通道。
其中，第一切换指令为第一SIM卡指示待切换的目标小区，第一切换指令指示的目标小区所在频段与第一发射通道对应。
步骤2、第二网络设备向终端设备发送第二切换命令。相应的，终端设备通过第二接收通道接收来自第二网络设备的第二切换指令。
其中，第二接收通道可以是一条通道。示例性的，以图3a为例(或以图7中的(a)为例)，第二接收通道包括射频Rx2通道。
其中，第二切换指令为第二SIM卡指示待切换的目标小区，第二切换指令指示的目标小区所在频段与第二发射通道对应。
也就是说，第一SIM卡和第二SIM卡均发生了小区切换。S603具体包括：在第一切换指令的接收时刻晚于第二切换指令的接收时刻的情况下，终端设备向第一网络设备发送第一请求信息。相应的，第一网络设备接收来自终端设备的第一请求信息。
如此，在第一切换指令的接收时刻晚于第二切换指令的接收时刻的情况下，表明终端设备先执行第二SIM卡的小区切换过程，后执行第一SIM卡的小区切换过程。此种情况下，终端设备先调整后发生小区切换的SIM卡的射频通道，即调整第一SIM卡对应的射频通道，以保证在先发生切换的SIM卡的业务稳定性。
容易理解的是，在第二切换指令的接收时刻晚于第一切换指令的接收时刻的情况下，终端设备向第二网络设备发送请求信息，以请求减少用于传输第二SIM卡的数据的通道数量，此处不再赘述。
S604、第一网络设备向终端设备发送第一调度信息。相应的，终端设备通过第一接收通道接收来自第一网络设备的第一调度信息。
其中，第一调度信息指示第一SIM卡的数据的传输资源，第一调度信息指示的传输资源对应的通道数量与第三发射通道的通道数量一致。示例性的，第一调度信息包括下行控制信息(downlink control information，DCI)。也就是说，第一网络设备通过DCI为终端设备指示MIMO退回后的传输资源。
S605、终端设备通过第三发射通道向第一网络设备发送数据3。相应的，第一网络设备接收来自终端设备的数据3。
其中，数据3是第一SIM卡在数据1之后待传输的数据。
示例性的，以图7中的(c)为例，第三发射通道为射频Tx1通道。此种情况下，终端设备通过射频Tx1通道发送数据3。
S606、终端设备通过第二发射通道向第二网络设备发送数据4。相应的，第二网络设备接收来自终端设备的数据4。
其中，数据4是第二SIM卡在数据2之后待传输的数据。
示例性的，以图7中的(c)为例，第二发射通道为射频Tx2通道。此种情况下，终端设备通过射频Tx2通道发送数据4。
需要说明的是，在移动环境下，第一网络设备基于信道监测结果等因素，存在如下可能：第一网络设备在执行S604之后，重新为终端设备指示了传输资源，且重新指示的传输资源对应第一发射通道，终端设备重新通过第一发射通道发送第一SIM卡的数据，进入TDM模式。此种情况下，终端设备重新执行MIMO回退过程，具体参见S603和S604的介绍，此处不再赘述。
在一些实施例中，若第二SIM卡的数据传输结束，则终端设备退出双卡并发。此种情况下，终端设备执行MIMO恢复过程，具体参见图8示出的步骤：
S801、终端设备释放第二发射通道的第二链路。
其中，第二发射通道的说明可以参见S602的介绍，此处不再赘述。第二链路是第二SIM卡与第二网络设备之间的链路。也就是说，终端设备不再传输第二SIM卡的数据，如在图9中的(a)中，采用虚直线表示。
S802、终端设备通过第三发射通道向第一网络设备发送第二请求信息。相应的，第一网络设备接收来自终端设备的第二请求信息。
其中，第二请求信息请求恢复用于传输第一SIM卡的数据的通道数量。第二请求信息的实现方式有多种，包括但不限于如下两种示例：
示例一、第二请求信息包括第二SRS，以引导第一网络设备实现MIMO恢复。其中，第二SRS指示第一发射通道的全部通道的信道质量。第二SRS的数量与第一发射通道的通道数量一致。对于第一网络设备而言，第二SRS是用于信道估计或信道探测的已知信号，所以，第一网络设备基于第二SRS能够确定第二调度信息。
例如，以图3a为例，第一发射通道的通道数量为2。为了实现MIMO恢复，用于传输第一SIM卡的通道数量增多，此种情况下，第二SRS的数量为2。也就是说，终端设备通过发射两个第二SRS，以向第一网络设备上报两个发射通道(如射频Tx1通道、射频Tx2通道)分别对应的信道质量，从而引导第一网络设备实现MIMO恢复。
示例二、第二请求信息包括第二参数。其中，第二参数指示第一发射通道能够数据传输，以实现MIMO恢复。第二请求信息可以是UE辅助信息，第二参考可以是reducedMIMO-LayersFR1-UL，或reducedMIMO-LayersFR2-UL，详见S603的介绍，此处不再赘述。
也就是说，终端设备向第一网络设备上报自身期待的MIMO层数，以实现MIMO恢复。
S803、第一网络设备向终端设备发送第二调度信息。相应的，终端设备通过第一接收通道接收来自第一网络设备的第二调度信息。
其中，第一接收通道的说明可以参见S604的介绍，此处不再赘述。
其中，第二调度信息指示第一SIM卡的数据的传输资源，第二调度信息指示的传输资源对应的通道数量与第一发射通道的通道数量一致。示例性的，第二调度信息是 DCI。
S804、终端设备通过第一发射通道向第一网络设备发送数据5。相应的，第一网络设备接收来自终端设备的数据5。
其中，数据5是第一SIM卡在数据1之后待传输的数据。如图9中的(b)所示，第一发射通道包括射频Tx1通道和射频Tx2通道，终端设备分别通过射频Tx1通道和射频Tx2通道发送数据5。
如此，在第二SIM卡的数据传输结束之后，终端设备还能够通过上述S801至S804实现MIMO恢复，恢复第一SIM卡数据传输的通道数据，以提升第一SIM卡的数据传输速率，提高数据吞吐量。
另外，本申请实施例还提供另外两种“调整上行射频通道”的示例：
示例一，上行射频通道交换的方式。例如，终端设备在不同小区间进行切换，在小区切换前后跨不同频段(band)的情况下，终端设备可以交换上行射频通道，来实现双卡数据发送的非竞争性和时域上的连续性。下面，通过如下五个步骤进行介绍：
步骤1，终端设备通过第一发射通道向第一网络设备发送第一SIM卡的数据。相应的，第一网络设备接收来自终端设备的第一SIM卡的数据。
示例性的，参见图10中的(a)，在小区切换前，第一SIM卡的频段为新无线(new radio，NR)频段A，记为NR Band-A，NR Band-A工作在射频Tx1通道上。第一发射通道为射频Tx1通道。
步骤2，终端设备通过第二发射通道向第二网络设备发送第二SIM卡的数据。相应的，第二网络设备接收来自终端设备的第二SIM卡的数据。
其中，第一发射通道与第二发射通道互不重叠。
示例性的，参见图10中的(a)，在小区切换前，第二SIM卡的频段为NR频段B，记为NR Band-B，NR Band-B工作在射频Tx2通道上。第二发射通道为射频Tx2通道。
步骤3，第一网络设备向终端设备发送切换指令。相应的，终端设备通过第一接收通道接收来自第一网络设备的切换指令。
其中，切换指令为第一SIM卡指示待切换的目标小区。切换指令指示的目标小区所在频段与第二发射通道对应。
示例性的，参见图10中的(a)，终端设备的第一SIM卡发生小区切换，切换后的频段为NR频段C，记为NR Band-C。在NR Band-C工作在射频Tx2通道上，无法工作在射频Tx1通道。之后，终端设备确定NR Band-B也可以工作在射频Tx1通道上，即第二SIM卡的工作带宽包括第一发射通道对应频段。如此，终端设备互换第一SIM卡的射频通道与第二SIM卡的射频通道，即终端设备执行步骤4和步骤5：
步骤4，终端设备通过第二发射通道向第一网络设备发送第一SIM卡的数据。相应的，第一网络设备接收来自终端设备的第一SIM卡的数据。
示例性的，参见图10中的(b)，在小区切换后，终端设备通过射频Tx2通道向第一网络设备发送第一SIM卡的数据。
步骤5，终端设备通过第一发射通道向第二网络设备发送第二SIM卡的数据。相应的，第二网络设备接收来自终端设备的第二SIM卡的数据。
示例性的，参见图10中的(b)，在小区切换后，终端设备通过射频Tx1通道向第二网络设备发送第二SIM卡的数据。
也就是说，终端设备通过通道互换的方式，来发送双卡上行数据，避免上行数据发送冲突。
示例二，上行射频通道调整的方式。
参见图11，终端设备至少配置有三条射频Tx通道，分别记为射频Tx1通道、射频Tx2通道、射频Tx3通道。终端设备执行S601和S602，即第一SIM卡的频段NR Band-A工作在射频Tx1通道和射频Tx2通道上，第二SIM卡的频段NR Band-B工作在射频Tx2通道上，如图11中的(a)所示。然后，终端设备确定NR Band-B也可以工作在射频Tx3通道上。如此，终端设备仍通过第一发射通道(即射频Tx1通道和射频Tx2通道)发送第一SIM卡的数据，且通过射频Tx3通道发送第二SIM卡的数据，以使双卡数据在时域上的并发，如图11中的(b)所示。
以上是通过“上行射频通道灵活调度的发送方式”来解决上行数据冲突的问题，从而实现双卡数据发送的非竞争性和时域上的连续性。另外，本申请实施例还提供另一种技术方案，即通过调整不同载波上的数据量，来降低上行数据冲突的概率。此种技术方案描述称为“上行数据灵活调度的发送方式”。例如，在无法通过MIMO回退、通道交换或通道调整的方式，无法解决上行数据冲突的问题时，可以通过“上行数据灵活调度的发送方式”，在一定程度上降低上行数据冲突的概率，具体参见图12所示的步骤：
S1201、终端设备确定第一数据和第二数据。
其中，第一数据和第二数据均属于第一SIM卡的数据，且第一数据通过第一载波发送，第二数据通过第二载波发送。
例如，以SA场景为例，参见图13中的(a)，第一载波与第二载波属于同一网络。第一载波为NR CC0，第二载波为NR CC1。第一载波对应的发射通道为射频Tx0通道，第二载波对应的发射通道为射频Tx1通道。第一SIM卡的数据包括PDU-1～PDU-j。以j为偶数为例，第一数据包括PDU-j/2+1～PDU-j，第二数据包括PDU-1～PDU-j/2。
再如，以NSA场景为例，参见图14中的(a)，第一载波与第二载波属于不同网络。第二载波为LTE CC1。第一载波、发射通道、第一数据和第二数据的介绍可以参见图13中的(a)的介绍，此处不再赘述。
S1202、终端设备通过第三载波向第二网络设备发送第二SIM卡的数据。相应的，第二网络设备通过第三载波接收来自终端设备的第二SIM卡的数据。
其中，第一载波与第三载波未复用同一发射通道，第二载波与第三载波复用同一发射通道。
例如，参见图13中的(a)或图14中的(a)，第三载波为NR CC2。第二载波与第三载波复用射频Tx1通道。
也就是说，终端设备采用分时复用发送方式，通过同一发射通道(如图13和图14中的射频Tx1通道)发送了双卡的上行数据。其中，第一载波可以描述为DSDA载波，第二载波可以描述为DSDS载波。此种情况下，终端设备执行S1203和S1204：
S1203、终端设备通过第一载波向第一网络设备发送第一数据和第三数据。相应的，第一网络设备通过第一载波接收来自终端设备的第一数据和第三数据。
其中，第三数据属于第二数据。仍以图13中的(b)或图14中的(b)为例，第三数据包括PDU-k+1～PDU-j/2。
S1204、终端设备通过第二载波向第一网络设备发送第四数据。相应的，第一网络设备通过第二载波接收来自终端设备的第四数据。
其中，第四数据属于第二数据。仍以图13中的(b)或图14中的(b)为例，第四数据包括PDU-1～PDU-k。
由S1203和S1204可知，终端设备将第二数据中的一部分数据，即第三数据，从第二载波转移到第一载波上发送，以减少第一SIM卡的数据在第二载波上的分配量。由于第二载波和第三载波复用同一发射通道，并且，第一SIM卡的数据在第二载波上的分配量减少，从而降低了双卡上行数据的冲突概率。并且，在独立组网(standalone，SA)场景下，终端设备通过MAC层调度，实现了卡内模内的数据分流。在非独立组网(non-standalone，NSA)场景下，终端设备通过PDCP层调度，实现了卡内模间的数据分流。
在一些实施例中，终端设备确定满足预设条件的情况下，才执行S1203和S1204。其中，预设条件包括以下至少一项：
第一项，发送第二SIM卡的数据的载波为第三载波。也就是说，第二SIM卡的数据仅通过第三载波传输。对于第二SIM卡来说，不存在DSDA载波。
第二项，第一SIM卡的数据的优先级低于第二SIM卡的数据的优先级。例如，第一SIM卡的数据属于非语音业务数据，第二SIM卡的数据属于语音业务数据。
在预设条件满足第一项的情况下，即第二SIM卡的数据只能通过第三载波来传输，终端设备执行S1203和S1204，既保证了第一SIM卡与第一网络设备之间的数据正常传输，又保证了第二SIM卡与第二网络设备之间的数据正常传输，还能够降低双卡上行数据冲突的概率。
在预设条件满足第二项的情况下，即第二SIM卡的数据优先级较高，终端设备执行S1203和S1204，以保证高优先级业务的传输质量，还能够降低双卡上行数据冲突的概率。
在一些实施例中，终端设备的物理层监测第二载波(即DSDS载波)的冲突率，并上报到MAC层。MAC分流调度模块根据冲突率，调整MAC分流比率，即确定第三数据的数据量大小，让冲突率保持在合理范围，保证两卡的上行发送发挥最大潜力。示例性的，终端设备可以通过如下两种方式来实现：方式一，终端设备先将第二载波上的第二数据流完全停止，使得第二载波的数传没有冲突，再按照一定的步长逐步调整分流比例。同时，终端设备检测冲突率是否都满足设定的冲突率有效窗。以表1为例，有效窗为10％～12％。如果低于有效窗的最低门限，如表1中的10％，可以进一步减小第三数据的数据量。反之，如果高于有效窗的最高门限，如表1中的12％，可以进一步增大第三数据的数据量。由于终端设备所处的信道环境始终存在变化，所以，终端设备可以依据冲突率来调整第三数据的数据量大小。其中，冲突率也可以替换为重传率或误码率，MAC可以替换为PDCP。
表1
Figure PCTCN2021095616-appb-000004
另外，针对支持双PS连接的终端设备，应用层在两卡都建立PS连接，同时进行上行数据传输。应用层能够灵活在双卡间动态分流，具体参见如下两个示例的介绍：
示例一，第二载波与第三载波复用同一发射通道。终端设备可以停止调度第一SIM卡和第二SIM卡中一个SIM卡的业务数据。例如，在第二SIM卡的调制解调器的吞吐量小于第一SIM卡的调制解调器的吞吐量的情况下，终端设备仍通过第一载波和第二载波向第一网络设备发送第一SIM卡的数据。相应的，第一网络设备通过第一载波和第二载波接收来自终端设备的第一SIM卡的数据。并且，终端设备不通过第三载波发送第二SIM卡的数据，以避免双卡的上行数据发生冲突，避免频繁的数据传输。
示例二，双卡是完全的DSDA载波。通过如下两个步骤进行介绍：
步骤1，终端设备确定第一载波和第二载波。
其中，第一载波用于传输第一SIM卡的第一数据，第二载波用于传输第二SIM卡的第二数据。第一载波和第二载波未复用同一发射通道。
示例性的，以图15中的(a)为例，第一载波为NR CC0，第二载波为LTE CC1。应用层的数据包括PDU-1～PDU-j。第一SIM卡的第一数据包括PDUj/2+1～PDU-j，第一SIM卡的第二数据包括PDU-1～PDU-j/2。第一载波通过射频Tx0通道发射第一数据，第二载波通过射频Tx1通道发射第二数据。
步骤2，终端设备根据两个载波中每一载波的空口传输能力和授权资源量，确定每一载波上的数据量。
其中，步骤2中的两个载波是指步骤1中的第一载波和第二载波。空口传输能力是基于以下因素的至少一项确定的：网络的带宽、调制阶数、或无线链路质量等。
例如，以图15中的(b)为例，第一载波的空口传输能力优于第二载波的空口传输能力，且第一载波的授权资源量大于第二载波的授权资源量，所以，终端设备加大第一载波上传输的数据量。也就是说，终端设备将第二数据中的一部分数据(如PDU-k+1～PDU-j/2)，从第二载波转移至第一载波上发送，以使得两卡的上行发送发挥到最大潜力。
通过图13至图15可知，终端设备提供三种动态分流机制：
第一种，卡内模内的不同载波间分流控制机制，如图16所示。即通过MAC层调整上行数据在不同载波上的数据量，详见S1203和S1204中关于MAC层的描述。
第二种，卡内模间的不同载波间分流控制机制，如图16所示。即通过PDCP层调整上行数据在不同载波上的数据量，详见S1203和S1204中关于PDCP层的描述。
第三种，卡间的分流控制机制，如图16所示。即通过应用层调整上行数据在不同载波上的数据量，详见示例一和示例二中关于应用层的描述。上述主要从终端设备的角度对本申请实施例提供的方案进行了介绍。可以理解的是，终端设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本申请中所公开的实施例描述的各示例的单元及算法步骤，本申请实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行， 取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的技术方案的范围。
本申请实施例可以根据上述方法示例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
如图17所示，为本申请实施例提供的一种通信装置，该通信装置包括处理单元1701、发送单元1702和接收单元1703。
其中，处理单元1701用于支持终端设备执行图8中的S801，图12中的S1201等。发送单元1702用于支持终端设备执行图6中的S601、S602、S603、S605、S606，图8中的S802、S804，图12中的S1202-S1204等。接收单元1703用于支持终端设备执行图6中的S604，图8中的S803等。
作为一个示例，图17中的处理单元1701可以通过图3a中的处理器330来实现，图17中的发送单元1702和接收单元1703可以由图3a中的收发器350来实现，第一射频通道、第二射频通道、第三射频通道、第一接收通道和第二接收通道的介绍可以参见相应方法实施例中的描述。
可选的，本申请实施例还提供一种携带计算机指令的计算机程序产品，当该计算机指令在计算机上运行时，使得计算机执行前述方法实施例所提供的数据传输方法。
可选的，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储计算机指令，当该计算机指令在计算机上运行时，使得计算机执行前述方法实施例所提供的数据传输方法。
可选的，本申请实施例还提供一种芯片，包括：处理电路和收发管脚，处理电路和收发管脚用于实现前述方法实施例所提供的数据传输方法。其中，处理电路用于执行相应方法中的处理动作，收发管脚用于执行相应方法中的接收/发送的动作。
本领域普通技术人员可以理解：在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如固态硬盘(Solid  State Disk，SSD))等。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个设备上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个功能单元独立存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘，硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (30)

  1. 一种数据传输方法，其特征在于，应用于终端设备，所述终端设备配置有第一用户识别模块SIM卡和第二SIM卡，所述方法包括：
    通过第一发射通道发送所述第一SIM卡的第一数据，其中，所述第一发射通道包括至少两条通道，所述第一发射通道与第二发射通道重叠，所述第二发射通道用于发送所述第二SIM卡的数据；
    通过所述第一发射通道发送第一请求信息，其中，所述第一请求信息请求减少用于发送所述第一SIM卡的数据的通道数量；
    通过第一接收通道接收第一调度信息，其中，所述第一调度信息为所述第一SIM卡指示数据传输的资源，所述第一调度信息指示的资源对应的通道数量小于所述第一发射通道的数量；
    通过第三发射通道发送所述第一SIM卡的第二数据，其中，所述第三发射通道的数量与所述第一调度信息指示的资源对应的通道数量相同，且所述第三发射通道与所述第二发射通道不重叠，所述第二数据是所述第一数据之后待传输的数据。
  2. 根据权利要求1所述的方法，其特征在于，所述第一请求信息包括第一探测参考信号SRS；
    其中，所述第一SRS至少指示所述第一发射通道中部分通道的信道质量，所述第一SRS用于确定所述第一调度信息。
  3. 根据权利要求2所述的方法，其特征在于，所述第一SRS的数量等于所述第三发射通道的数量。
  4. 根据权利要求2所述的方法，其特征在于，所述第一SRS的数量等于所述第一发射通道的数量，其中，与预设编码信号的相似度大于阈值的第一SRS的数量等于所述第三发射通道的数量。
  5. 根据权利要求1所述的方法，其特征在于，所述第一请求信息包括第一参数；
    其中，所述第一参数指示所述第一发射通道中能够用于数据传输的通道数量，所述第一参数用于确定所述第一调度信息。
  6. 根据权利要求5所述的方法，其特征在于，所述第一参数指示的通道数量等于所述第三发射通道的数量。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述方法还包括：
    释放所述第二发射通道的第二链路，其中，所述第二链路是所述第二SIM卡与第二网络设备之间的链路；
    通过所述第三发射通道发送第二请求信息，其中，所述第二请求信息请求恢复用于发送所述第一SIM卡的数据的通道数量；
    通过所述第一接收通道接收第二调度信息，其中，所述第二调度信息为所述第一SIM卡指示数据传输的资源，所述第二调度信息指示的资源对应的通道数量等于所述第一发射通道的数量；
    通过所述第一发射通道发送所述第一SIM卡的第三数据，其中，所述第三数据是所述第二数据之后待传输的数据。
  8. 根据权利要求7所述的方法，其特征在于，所述第二请求信息包括第二SRS；
    其中，所述第二SRS指示所述第一发射通道中全部通道的信道质量，所述第二SRS用于确定所述第二调度信息。
  9. 根据权利要求8所述的方法，其特征在于，所述第二SRS的数量等于所述第一发射通道的数量。
  10. 根据权利要求7所述的方法，其特征在于，所述第二请求信息包括第二参数；
    其中，所述第二参数指示所述第一发射通道中全部通道均能够用于数据传输，所述第二参数用于确定所述第二调度信息。
  11. 根据权利要求1至10任一项所述的方法，其特征在于，所述通过所述第一发射通道发送第一请求信息，包括：在第一链路的建立时间晚于第二链路的建立时间的情况下，通过所述第一发射通道发送所述第一请求信息；
    其中，所述第一链路是所述第一SIM卡与第一网络设备之间的链路，所述第二链路是所述第二SIM卡与第二网络设备之间的链路。
  12. 根据权利要求1至10任一项所述的方法，其特征在于，所述方法还包括：
    通过所述第一接收通道接收第一切换指令，其中，所述第一切换指令为所述第一SIM卡指示待切换的目标小区，所述第一切换指令指示的目标小区所在频段与所述第一发射通道对应；
    通过第二接收通道接收第二切换指令，其中，所述第二切换指令为所述第二SIM卡指示待切换的目标小区，所述第二切换指令指示的目标小区所在频段与所述第二发射通道对应；
    所述通过所述第一发射通道发送第一请求信息，包括：
    在所述第一切换指令的接收时刻晚于所述第二切换指令的接收时刻的情况下，通过所述第一发射通道发送所述第一请求信息。
  13. 一种数据传输方法，其特征在于，应用于终端设备，所述终端设备配置有第一用户识别模块SIM卡和第二SIM卡，所述方法包括：
    通过第一发射通道发送所述第一SIM卡的数据，且通过第二发射通道发送所述第二SIM卡的数据，其中，所述第一发射通道与所述第二发射通道互不重叠；
    通过第一接收通道接收切换指令，其中，所述切换指令为所述第一SIM卡指示待切换的目标小区，所述切换指令指示的目标小区所在频段与所述第二发射通道对应；
    在所述第二SIM卡的工作带宽包括所述第一发射通道对应频段的情况下，通过所述第二发射通道发送所述第一SIM卡的数据，且通过所述第一发射通道发送所述第二SIM卡的数据。
  14. 一种通信装置，其特征在于，包括发射通道和第一接收通道，其中，所述发射通道的数量为至少两条；
    第一发射通道，用于发送所述第一SIM卡的第一数据，其中，所述第一发射通道包括至少两条通道，所述第一发射通道与第二发射通道重叠，所述第二发射通道用于发送所述第二SIM卡的数据；
    所述第一发射通道，还用于发送第一请求信息，其中，所述第一请求信息请求减少用于发送所述第一SIM卡的数据的通道数量；
    所述第一接收通道，用于接收第一调度信息，其中，所述第一调度信息为所述第 一SIM卡指示数据传输的资源，所述第一调度信息指示的资源对应的通道数量小于所述第一发射通道的数量；
    第三发射通道，用于发送所述第一SIM卡的第二数据，其中，所述第三发射通道的数量与所述第一调度信息指示的资源对应的通道数量相同，且所述第三发射通道与所述第二发射通道不重叠，所述第二数据是所述第一数据之后待传输的数据。
  15. 根据权利要求14所述的装置，其特征在于，所述第一请求信息包括第一探测参考信号SRS；
    其中，所述第一SRS至少指示所述第一发射通道中部分通道的信道质量，所述第一SRS用于确定所述第一调度信息。
  16. 根据权利要求15所述的装置，其特征在于，所述第一SRS的数量等于所述第三发射通道的数量。
  17. 根据权利要求15所述的装置，其特征在于，所述第一SRS的数量等于所述第一发射通道的数量，其中，与预设编码信号的相似度大于阈值的第一SRS的数量等于所述第三发射通道的数量。
  18. 根据权利要求14所述的装置，其特征在于，所述第一请求信息包括第一参数；
    其中，所述第一参数指示所述第一发射通道中能够用于数据传输的通道数量，所述第一参数用于确定所述第一调度信息。
  19. 根据权利要求18所述的装置，其特征在于，所述第一参数指示的通道数量等于所述第三发射通道的数量。
  20. 根据权利要求14至19任一项所述的装置，其特征在于，
    所述第二发射通道，还用于释放第二链路，其中，所述第二链路是所述第二SIM卡与第二网络设备之间的链路；
    所述第三发射通道，还用于发送第二请求信息，其中，所述第二请求信息请求恢复用于发送所述第一SIM卡的数据的通道数量；
    所述第一接收通道，还用于接收第二调度信息，其中，所述第二调度信息为所述第一SIM卡指示数据传输的资源，所述第二调度信息指示的资源对应的通道数量等于所述第一发射通道的数量；
    所述第一发射通道，还用于发送所述第一SIM卡的第三数据，其中，所述第三数据是所述第二数据之后待传输的数据。
  21. 根据权利要求20所述的装置，其特征在于，所述第二请求信息包括第二SRS；
    其中，所述第二SRS指示所述第一发射通道中全部通道的信道质量，所述第二SRS用于确定所述第二调度信息。
  22. 根据权利要求21所述的装置，其特征在于，所述第二SRS的数量等于所述第一发射通道的数量。
  23. 根据权利要求20所述的装置，其特征在于，所述第二请求信息包括第二参数；
    其中，所述第二参数指示所述第一发射通道中全部通道均能够用于数据传输，所述第二参数用于确定所述第二调度信息。
  24. 根据权利要求14至23任一项所述的装置，其特征在于，所述第一发射通道，用于发送第一请求信息，具体包括：在第一链路的建立时间晚于第二链路的建立时间 的情况下，发送所述第一请求信息；
    其中，所述第一链路是所述第一SIM卡与第一网络设备之间的链路，所述第二链路是所述第二SIM卡与第二网络设备之间的链路。
  25. 根据权利要求14至23任一项所述的装置，其特征在于，
    所述第一接收通道，还用于接收第一切换指令，其中，所述第一切换指令为所述第一SIM卡指示待切换的目标小区，所述第一切换指令指示的目标小区所在频段与所述第一发射通道对应；
    所述装置还包括第二接收通道，用于接收第二切换指令，其中，所述第二切换指令为所述第二SIM卡指示待切换的目标小区，所述第二切换指令指示的目标小区所在频段与所述第二发射通道对应；
    所述第一发射通道，用于发送第一请求信息，具体包括：在所述第一切换指令的接收时刻晚于所述第二切换指令的接收时刻的情况下，发送所述第一请求信息。
  26. 一种通信装置，其特征在于，包括第一发射通道、第二发射通道和第一接收通道，其中，所述第一发射通道与所述第二发射通道互不重叠；
    所述第一发射通道，用于发送所述第一SIM卡的数据；
    所述第二发射通道，用于发送所述第二SIM卡的数据；
    所述第一接收通道，用于接收切换指令，所述切换指令为所述第一SIM卡指示待切换的目标小区，所述切换指令指示的目标小区所在频段与所述第二发射通道对应；
    所述第二发射通道，还用于在所述第二SIM卡的工作带宽包括所述第一发射通道对应频段的情况下，发送所述第一SIM卡的数据；
    所述第一发射通道，还用于在所述第二SIM卡的工作带宽包括所述第一发射通道对应频段的情况下，发送所述第二SIM卡的数据。
  27. 一种通信装置，其特征在于，包括：处理器和存储器，所述处理器和所述存储器耦合，所述存储器存储有程序指令，当所述存储器存储的程序指令被所述处理器执行时，如权利要求1至12中任一项所述的方法被执行，或如权利要求13所述的方法被执行。
  28. 一种芯片，其特征在于，所述芯片包括逻辑电路和输入输出接口，所述输入输出接口用于与所述芯片之外的模块通信，所述逻辑电路用于运行计算机程序或指令，以控制终端设备执行如权利要求1至12中任一项所述的方法，或执行如权利要求13所述的方法。
  29. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质包括计算机指令，当所述计算机指令在计算机上运行时，使得计算机执行如权利要求1至12任一项所述的方法，或执行如权利要求13所述的方法。
  30. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机指令，当所述计算机程序产品在计算机上运行时，使得计算机执行如权利要求1至12任一项所述的方法，或执行如权利要求13所述的方法。
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Citations (3)

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US20140179373A1 (en) * 2012-12-20 2014-06-26 Samsung Electronics Co., Ltd. Portable terminal on which multiple sims are capable of being mounted, and method of selecting sim therein
CN105338178A (zh) * 2015-09-30 2016-02-17 宇龙计算机通信科技(深圳)有限公司 基于双卡双待单通终端的通信方法及装置
CN105978582A (zh) * 2016-06-30 2016-09-28 深圳优克云联科技有限公司 一种单基带双通道的通信方法及通信设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140179373A1 (en) * 2012-12-20 2014-06-26 Samsung Electronics Co., Ltd. Portable terminal on which multiple sims are capable of being mounted, and method of selecting sim therein
CN105338178A (zh) * 2015-09-30 2016-02-17 宇龙计算机通信科技(深圳)有限公司 基于双卡双待单通终端的通信方法及装置
CN105978582A (zh) * 2016-06-30 2016-09-28 深圳优克云联科技有限公司 一种单基带双通道的通信方法及通信设备

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