WO2018170855A1 - 传输数据的方法、终端设备和网络设备 - Google Patents

传输数据的方法、终端设备和网络设备 Download PDF

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Publication number
WO2018170855A1
WO2018170855A1 PCT/CN2017/077931 CN2017077931W WO2018170855A1 WO 2018170855 A1 WO2018170855 A1 WO 2018170855A1 CN 2017077931 W CN2017077931 W CN 2017077931W WO 2018170855 A1 WO2018170855 A1 WO 2018170855A1
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WIPO (PCT)
Prior art keywords
link
transmission mode
pdcp pdu
terminal device
network device
Prior art date
Application number
PCT/CN2017/077931
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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.)
Filing date
Publication date
Priority to US16/496,832 priority Critical patent/US11088941B2/en
Priority to SG11201908814T priority patent/SG11201908814TA/en
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to AU2017405776A priority patent/AU2017405776A1/en
Priority to CN201780088784.XA priority patent/CN110447261B/zh
Priority to IL269497A priority patent/IL269497B2/en
Priority to BR112019019698A priority patent/BR112019019698A2/pt
Priority to PCT/CN2017/077931 priority patent/WO2018170855A1/zh
Priority to JP2019552159A priority patent/JP6999689B2/ja
Priority to RU2019133784A priority patent/RU2730002C1/ru
Priority to CA3057382A priority patent/CA3057382A1/en
Priority to MX2019011342A priority patent/MX2019011342A/es
Priority to KR1020197027898A priority patent/KR102302912B1/ko
Priority to CN201911302320.1A priority patent/CN111031574B/zh
Priority to EP17901580.5A priority patent/EP3585093B1/en
Priority to TW107105086A priority patent/TWI741146B/zh
Publication of WO2018170855A1 publication Critical patent/WO2018170855A1/zh
Priority to PH12019502173A priority patent/PH12019502173A1/en
Priority to ZA2019/06354A priority patent/ZA201906354B/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a method, a terminal device, and a network device for transmitting data.
  • the Packet Data Convergence Protocol (PDCP) protocol layer sender can support the data replication function, that is, copy one PDCP Protocol Data Unit (PDU) into two copies (possibly multiple copies).
  • PDU Packet Data Convergence Protocol
  • the direct use of the replicated data transmission method in the prior art results in extremely low resource utilization.
  • the embodiment of the present application provides a method for transmitting data, a terminal device, and a network device, which are beneficial to balance the relationship between resource utilization and reliability of data transmission.
  • a method for transmitting data comprising: determining, by a first terminal device, a transmission mode of a packet data convergence layer protocol PDCP protocol data unit PDU, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode
  • the first terminal device sends the PDCP PDU to the second terminal device or the network device according to the transmission mode of the PDCP PDU.
  • the solution in the embodiment of the present application may be applied to a scenario of uplink data transmission, and may also be applied to a terminal-to-device (D2D) communication scenario.
  • D2D terminal-to-device
  • the copy data transmission mode means that the PDCP uses the duplicate data transmission function to copy one PDCP PDU into multiple copies and transmit them on multiple links respectively; and the single link transmission mode is that PDCP does not use the duplicate data transmission function, that is, The PDCP PDU is not duplicated data and can be transmitted once on one link, or it can be divided into multiple parts and transmitted in multiple links.
  • determining the transmission mode of the PDCP PDU refers to whether the PDCP uses the duplicate data transmission function.
  • the PDCP PDU here may be some industry that has high reliability requirements for data transmission. Business. That is to say, when the PDCP PDUs of these services need to be transmitted, it is necessary to determine whether the PDCP PDU needs to be copied. Other PDCP PDUs that do not have high requirements for data transmission may need to be determined by the single link transmission method without determining the transmission mode.
  • the first terminal device determines a transmission manner of a packet data convergence layer protocol (PDCP) data unit PDU, where the first terminal device determines the PDCP PDU according to channel quality information of the at least one link.
  • PDCP packet data convergence layer protocol
  • the channel quality information of the link here may be represented by the following information: a channel quality indicator (CQI), a number of retransmission schedules in a certain period of time, a number of consecutive initial transmission schedules in a certain period of time, or a modulation and coding strategy. (Modulation and Coding Scheme, MCS) and the like.
  • CQI channel quality indicator
  • MCS Modulation and Coding Scheme
  • Associating the channel quality of the link with the transmission mode further balances the relationship between resource utilization and reliability of data transmission.
  • the channel quality information of the at least one link includes the number of times the at least one link retransmits the scheduling in the first time period, and the at least one link is continuously scheduled in the second time period.
  • the number of times or the modulation and coding policy MCS value of the at least one link wherein the first terminal device determines the transmission mode of the PDCP PDU according to the channel quality information of the at least one link, including: the at least the first terminal device according to the at least one Determining the number of times of scheduling of the link in a first time period, the number of consecutive initial transmissions of the at least one link in the second time period, or the modulation and coding policy MCS value of the at least one link, determining the transmission of the PDCP PDU the way.
  • the first terminal device determines, according to the at least one link, the number of retransmissions in the first time period, and determines a transmission mode of the PDCP PDU, including: if any one of the at least one link The number of times of the retransmission scheduling of the link is less than or equal to the first threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a single link transmission mode; or if the weight of each link in the at least one link The number of times of scheduling is greater than the first threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a copy data transmission mode.
  • the first terminal device determines, according to the at least one link, the number of retransmissions in the first time period, and determines a transmission mode of the PDCP PDU, including: if the link in each of the at least one link The number of times of retransmission scheduling is in the first range, and the first terminal device determines that the transmission mode of the PDCP PDU is a replication data transmission mode.
  • the rules based on the first threshold and the first range may be adopted separately or in combination, but have a certain priority.
  • the rule based on the first threshold may have a high priority. Based on the rules of the first scope.
  • the first threshold and the first range may be determined by the influence of the number of retransmission schedules on the channel quality of the link within a certain period of time.
  • the first terminal device determines the transmission mode of the PDCP PDU according to the number of consecutive initial transmissions in the second time period of the link, including: if any of the at least one link The number of consecutive initial transmissions of a link is greater than or equal to a second threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; or if each of the at least one link is The number of consecutive initial transmissions is less than the second threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a duplicate data transmission mode.
  • the second threshold may be determined by the influence of the number of consecutive initial transmission schedules on the channel quality of the link within a certain period of time.
  • the first terminal device determines, according to the MCS value of each link, a transmission mode of the PDCP PDU, including: if the MCS value of the at least one link is greater than or equal to a third threshold The first terminal device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; or if the MCS value of each link in the at least one link is less than the third threshold, the first terminal device determines The transmission mode of the PDCP PDU is a copy data transmission mode.
  • the third threshold may be determined by the effect of the modulation and coding strategy values of the link on the channel quality of the link.
  • the terminal device may directly select a single-link transmission mode when determining the channel quality of a link, and may also select a duplicate data transmission mode when the channel quality of two or more links is poor. It is also possible to determine the channel quality of all links before determining.
  • the method further includes: receiving, by the first terminal device, first indication information that is sent by the second terminal device or the network device, where the first indication information is used to indicate a transmission mode of the PDCP PDU;
  • the first terminal device determines a transmission mode of the packet data convergence layer protocol PDCP protocol data unit PDU, and the first terminal device determines, according to the first indication information, a transmission mode of the PDCP PDU.
  • the terminal device itself determines a transmission mode based on the foregoing rule, but the indication information is directly indicated at a certain time to directly indicate the transmission mode, and the directly indicated transmission mode is different from the transmission mode determined by the rule, then the terminal The device can override the transmission method determined by the rule by using the directly indicated transmission mode.
  • the method further includes: sending, by the first terminal device, the PDCP Before the PDU, the first terminal device determines a link for transmitting the PDCP PDU.
  • the first terminal device determines a link for transmitting the PDCP PDU, including: if the transmission mode of the PDCP PDU is a single-link transmission mode, the first terminal device The link with the best channel quality in the link is determined as the link for transmitting the PDCP PDU; or if the transmission mode of the PDCP PDU is the copy data transmission mode, the first terminal device is configured according to each of the multiple links The priority of the channel quality of the link is from high to low, and the plurality of links in the plurality of links are determined as links for transmitting the duplicated data of the PDCP PDU.
  • the first terminal device may also arbitrarily select a link to transmit the PDCP PDU. If it is determined that the data transmission mode is duplicated, the first terminal device may also arbitrarily select multiple links to transmit the PDCP PDU.
  • the method further includes: receiving, by the first terminal device, second indication information that is sent by the second terminal device or the network device, where the second indication information is used to transmit a link of the PDCP PDU; Determining, by the first terminal device, a link for transmitting the PDCP PDU, the first terminal device determining, according to the second indication information, a link for transmitting the PDCP PDU.
  • the network device may indicate to the terminal device the link for transmitting the PDCP PDU, and the terminal device may use the network device to indicate, or may select a link for transmitting the PDCP PDU according to its own situation.
  • a method for transmitting data comprising: determining, by a network device, a transmission mode of a packet data convergence layer protocol PDCP protocol data unit PDU of a first terminal device, where the transmission mode includes a duplicate data transmission mode or a single chain
  • the network transmission device sends the first indication information to the first terminal device, where the first indication information is used to indicate the transmission mode of the PDCP PDU.
  • the network device determines a transmission manner of a packet data convergence layer protocol PDCP protocol data unit PDU of the first terminal device, where the network device determines the PDCP according to channel quality information of the at least one link.
  • the transmission method of the PDU is a packet data convergence layer protocol PDCP protocol data unit PDU of the first terminal device, where the network device determines the PDCP according to channel quality information of the at least one link.
  • the channel quality information of the at least one link includes the number of times the at least one link retransmits the scheduling in the first time period, and the at least one link is continuously scheduled in the second time period.
  • the number of times or the modulation and coding policy MCS value of each link the network device determines the transmission mode of the PDCP PDU according to the channel quality information of the at least one link, including: the network The network device determines, according to the at least one link, the number of retransmissions in the first time period, the number of consecutive initial transmissions of each link in the second time period, or the modulation and coding policy MCS value of each link.
  • the transmission mode of the PDCP PDU includes the number of times the at least one link retransmits the scheduling in the first time period, and the at least one link is continuously scheduled in the second time period.
  • the number of times or the modulation and coding policy MCS value of each link the network device determines the transmission mode of the PDCP PDU according to the channel quality information of the at least
  • the network device determines, according to the at least one link, the number of retransmissions in the first time period, and determines a transmission manner of the PDCP PDU, including: if any one of the at least one link The number of retransmission schedules of the path is less than or equal to the first threshold, and the network device determines that the transmission mode of the PDCP PDU is a single link transmission mode; if the number of retransmission schedules of each link in the at least one link is greater than The first threshold, the second terminal device or the network device determines that the transmission mode of the PDCP PDU is a duplicate data transmission mode.
  • the network device determines, according to the consecutive initial transmission scheduling times of the at least one link in the second time period, the transmission manner of the PDCP PDU, including: if any one of the at least one link The number of consecutive initial transmissions of the route is greater than or equal to the second threshold, and the network device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; if the number of consecutive initial transmissions of each link in the at least one link The network device determines that the transmission mode of the PDCP PDU is a duplicate data transmission mode.
  • the network device determines, according to an MCS value of the at least one link, a transmission mode of the PDCP PDU, including: if the MCS value of any one of the at least one link is greater than or equal to a third threshold, the network device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; if the MCS value of each link in the at least one link is less than the third threshold, the network device determines the PDCP PDU
  • the transmission method is the method of copying data transmission.
  • the at least one link is a plurality of links
  • the method further includes: if the transmission mode of the PDCP PDU is a single-link transmission mode, the network device channels the multiple links The best quality link is determined as the link for transmitting the PDCP PDU, or if the transmission mode of the PDCP PDU is the duplicate data transmission mode, the network device according to the channel quality of each link of the multiple links Determining, in descending order of priority, a plurality of links of the plurality of links as a link for transmitting the PDCP PDU; the network device sending second indication information to the first terminal device, where the The second indication information is used to indicate the link for transmitting the PDCP PDU.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a network device for performing the second aspect or the first aspect described above The method in any possible implementation.
  • the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.
  • a network device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • a computer storage medium for storing the method in any of the above possible implementations of the first aspect or the first aspect, or any possible implementation of the second or second aspect
  • Computer software instructions for use in the method of the present invention which comprise a program designed to perform the above aspects.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 shows a protocol architecture diagram of duplicate data transmission in a carrier aggregation scenario.
  • FIG. 3 shows a schematic block diagram of a method of transmitting data in an embodiment of the present application.
  • FIG. 4 shows another schematic block diagram of a method of transmitting data in an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device for transmitting data according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a network device for transmitting data according to an embodiment of the present application.
  • FIG. 7 is another schematic block diagram of a terminal device for transmitting data according to an embodiment of the present application.
  • FIG. 8 is another schematic block diagram of a network device for transmitting data according to an embodiment of the present application.
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access, WiMAX
  • the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc., of course, the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application can be applied to multi-carrier using non-orthogonal multiple access technology.
  • SCMA sparse code multiple access
  • LDS Density Signature
  • Orthogonal Frequency Division Multiplexing OFDM
  • Filter Bank Multi-Carrier FBMC
  • General Frequency Division Multiplexing Generalized Frequency Division Multiplexing (OFDM)) Frequency Division Multiplexing (GFDM)
  • Filtered Orthogonal Frequency Division Multiplexing Filtered-OFDM, F-OFDM
  • the terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in a WCDMA system.
  • the LTE system may also be an evolved base station (Evolutional NodeB, eNB or eNodeB), or may be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network.
  • the device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a terminal device 10 and a network device 20.
  • the network device 20 is configured to provide communication services for the terminal device 10 and access the core network.
  • the terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 10 and the network device 20.
  • PDCP can support the data replication function, that is, utilize the PDCP replication data function, so that the copied data corresponds to two or more logical channels, and finally ensure that multiple duplicate PDCP PDUs can be replicated in different physical domains.
  • the layer is aggregated and transmitted on the carrier to achieve frequency diversity gain to improve data transmission reliability.
  • the PDCP layer has a split bearer replication function, and the data process of the PDCP SDU1 is copied and encapsulated into PDCP PDU1 and PDCP PDU2, and the PDCP PDU1 and the PDCP PDU2 have the same content, that is, the data payload and the header header are the same.
  • PDCP PDU1 and PDCP PDU2 are respectively mapped to different Radio Link Control (RLC) entities, and the RLC entity places PDCP PDU1 and PDCP PDU2 on different logical channels (logical channel 1 and logical channel 2).
  • RLC Radio Link Control
  • the replicated data is transmitted on different carriers through different hybrid automatic repeat request HARQ entities.
  • the replica data carried in the logical channel 1 is transmitted on the physical carrier 1 through the HARQ entity 1
  • the replica data carried in the logical channel 2 is transmitted on the physical carrier 2 through the HARQ entity 2.
  • the PDCP layer replica data transmission can effectively improve the reliability of data transmission by using the diversity gain, the obvious disadvantage is that the method leads to extremely low system resource utilization, that is, different resources are required to transmit the same content.
  • FIG. 3 shows a schematic block diagram of a method 100 of transmitting data in an embodiment of the present application. As shown in FIG. 3, the method 100 includes:
  • the first terminal device determines a transmission mode of a packet data convergence layer protocol PDCP protocol data unit PDU, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode.
  • the first terminal device sends the PDCP PDU to the second terminal device or the network device according to the transmission mode of the PDCP PDU.
  • the embodiment of the present application can be applied to a communication scenario of a terminal device to a network device, and can also be applied to a communication scenario of the terminal device to the terminal device.
  • the terminal device can flexibly determine the transmission mode of the PDCP PDU, that is, whether the function of copying data is used in the PDCP.
  • the copy data transmission method may be that the PDCP layer of the terminal device copies one PDCP PDU into multiple copies and indicates to the MAC layer, and the MAC layer separately schedules the replication data of the PDCP PDU in multiple links, that is, the physical medium in FIG. 2 The layer carrier is transmitted.
  • the single-link transmission mode may be that the PDCP layer of the terminal device does not copy the PDCP PDU and indicates to the MAC layer.
  • the MAC layer schedules the PDCP PDU on one or more link transmissions, and the terminal device determines that After which transmission mode, the PDCP PDU can be transmitted by using a certain transmission mode. For example, if the terminal device determines that the transmission mode is a single-link transmission mode, the terminal device may use one link to transmit the PDCP PDU; if the terminal device determines that the transmission mode is a duplicate data transmission mode, the terminal device may select multiple The link transmits the duplicated data of the PDCP PDU.
  • the PDCP PDUs herein may be services that have high reliability requirements for data transmission. That is to say, when the PDCP PDUs of these services need to be transmitted, it is necessary to determine whether the PDCP PDU needs to be copied. Other PDCP PDUs that do not have high requirements for data transmission may need to be determined by the single link transmission method without determining the transmission mode.
  • the method for transmitting data in the embodiment of the present application is advantageous for balancing resource utilization and reliability of data transmission.
  • the first terminal device determines a transmission mode of the packet data convergence layer protocol PDCP protocol data unit PDU, where the first terminal device determines the channel quality information according to the channel quality information of the at least one link.
  • the transmission mode of the PDCP PDU is a transmission mode of the packet data convergence layer protocol PDCP protocol data unit PDU.
  • At least one link herein may be directed to all links of the terminal device as well as to some of the links in the terminal device. For example, if a terminal device includes five links, the terminal device can determine the transmission mode of the PDCP PDU according to the channel quality information of the five links. The terminal device may further determine a transmission mode of the PDCP PDU according to channel quality information of each of the five links.
  • the channel quality information of the at least one link may be that the network device tells the terminal device. For example, after obtaining the uplink channel estimation situation on each link, the network device may feed back to the terminal device; or after the network device obtains the uplink resource usage on each link, It is also possible to feed back to the terminal device.
  • the channel quality information of the link may be represented by the following information: the channel quality indicator, the number of retransmission schedules in a certain period of time, the number of consecutive initial transmission schedules in a certain period of time, or a modulation and coding strategy, etc. Not limited to this.
  • the first terminal device determines the transmission mode of the PDCP PDU according to the retransmission of the number of times of the at least one link in the first time period, including: if the at least one link is in the link The number of retransmission schedules of any one of the links is less than or equal to the first threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a single link transmission mode; or if each link in the at least one link The number of times of the retransmission scheduling is greater than the first threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a replication data transmission mode.
  • the first terminal device determines, according to the at least one link, the number of retransmissions in the first time period, and determines a transmission mode of the PDCP PDU, including: if the link in each of the at least one link The number of times of retransmission scheduling is in the first range, and the first terminal device determines that the transmission mode of the PDCP PDU is a replication data transmission mode.
  • a rule may be configured by using a Radio Resource Control (RRC), where the rule may be a transmission mode in which the number of retransmission schedules of each link corresponds to a different size relationship of a threshold.
  • RRC Radio Resource Control
  • a statistics can be performed on the number of retransmission schedules on different links, and the number of retransmission schedules is associated with channel quality. For example, if the number of retransmission schedules is less than 5 times in a certain period of time, the channel quality is obviously good, and the threshold of the rule can be set to 5.
  • the terminal device can periodically count the number of retransmission schedules. For example, the terminal device can collect the number of retransmission schedules every 100 ms.
  • the terminal device can perform the retransmission schedule according to the first 100 ms. Within the threshold, if it is within the threshold, then at least the channel quality on the link can be proved to be good, and the data transmission reliability is relatively high, then the terminal device can choose to use a single link transmission mode; the terminal device can be based on The number of retransmissions on a link is greater than the threshold to determine the replication data transmission mode. The terminal device can also determine the replication data transmission mode according to the number of retransmissions on multiple links being greater than the threshold. The terminal device determines the relationship between the number of retransmission schedules and thresholds on the links, and can be implemented based on the terminal device. The embodiment of the present application is not limited thereto.
  • the terminal device may also be based on another rule, that is, the terminal device may determine that the number of retransmission schedules of the at least one link is within a range, and then determine that the transmission mode of the PDCP PDU to be transmitted is a duplicate data transmission mode. For example, if the range is between 5 and 10 times, the terminal device can determine whether the number of retransmission schedules of the multiple links is between 5 and 10 times. If it is determined that the number of retransmission schedules of multiple links is between 5 and 10 times, it can be determined that the transmission mode is a duplicate data transmission mode.
  • the scheme based on the first range and the first threshold may be jointly configured to the terminal device.
  • the terminal device can directly determine that the transmission mode of the PDCP PDU is Copying the data transmission mode, or the terminal device determines whether the number of retransmission schedules of the two links are within the first range, and if it is within the first range, the terminal device can determine the transmission mode of the PDCP PDU. To copy the data transfer method.
  • the number of retransmission schedules may be the number of retransmission schedules in the previous time period, or the average number of retransmission schedules in the previous time period, etc.
  • the method of acquisition is not limited.
  • the first terminal device determines, according to the consecutive initial transmission scheduling times of the second time period, the transmission mode of the PDCP PDU, including: if the at least one link The number of consecutive initial transmission schedules of any one of the links is greater than or equal to the second threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a single link transmission mode; or if each of the at least one link The number of consecutive initial transmissions of the link is less than the second threshold, and the first terminal device determines that the transmission mode of the PDCP PDU is a duplicate data transmission mode.
  • a rule may be configured by using the RRC, where the rule may be a transmission mode in which the number of consecutive initial transmissions of each link is different from the different size relationship of one threshold.
  • a statistic can be performed on the number of consecutive initial transmission schedules on different links, and the number of consecutive initial transmission schedules is associated with the channel quality. For example, if the channel quality is found to be significantly better when the number of consecutive new transmission schedules is greater than 5 times in a certain period of time, the threshold of the rule may be set to 5.
  • the terminal device can periodically count the number of consecutive new transmission schedules. For example, the terminal device can count the number of retransmission schedules every 100 ms.
  • the terminal device can perform continuous new transmission scheduling according to the first 100 ms. Whether the number of times is outside the threshold, if it is outside the threshold, then at least it can be proved The channel quality on the link is relatively good, and the data transmission reliability is also relatively high. Then, the terminal device can select a single link transmission mode; the terminal device can determine the adoption according to the number of consecutive new transmissions on one link being less than the threshold. The data transmission mode is duplicated; the terminal device may also determine to adopt the duplicate data transmission mode according to the consecutive new transmission scheduling times on the multiple links being less than the threshold. The terminal device determines the relationship between the number of consecutive new scheduling times and the thresholds on the several links, and can be implemented based on the terminal device. The embodiment of the present application is not limited thereto.
  • the number of consecutive new transmission schedules may be the number of consecutive new transmission schedules in the previous time period, or the average number of consecutive new transmission schedules in the previous several time periods, etc.
  • the method of obtaining the number of times of scheduling is not limited.
  • rule based on the number of consecutive new transmission schedules is similar to the rule based on the number of retransmission schedules, and is not described herein again for brevity.
  • the first terminal device determines, according to the MCS value of each link, a transmission mode of the PDCP PDU, including: if the MCS value of the at least one link is greater than or equal to the first The third terminal, the first terminal device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; or if the MCS value of each link in the at least one link is less than the third threshold, the first terminal The device determines that the transmission mode of the PDCP PDU is a copy data transmission mode.
  • a rule may be configured by using the RRC, where the rule may be a different transmission mode in which the MCS value of each link corresponds to a different size relationship of a threshold.
  • the MCS values on different links can be associated with channel quality. For example, if the channel quality is significantly better when the MCS is greater than a certain threshold, the threshold of the rule can be set to the MCS value at this time.
  • the terminal device can determine whether the threshold is greater than the threshold according to the MCS value in the downlink control information sent by the network device. If the threshold is greater than the threshold, the terminal can prove that the channel quality on the link is better.
  • the data transmission reliability is also relatively high, so the terminal device can select a single-link transmission mode; the terminal device can determine the replication data transmission mode according to the MCS value on one link is less than the threshold; the terminal device can also be based on multiple The MCS value on the link is less than the threshold to determine the replication data transmission mode.
  • the terminal device can determine the relationship between the MCS value and the threshold on the link, and can be implemented based on the terminal device.
  • the embodiment of the present application is not limited thereto.
  • the rule based on the MCS value is similar to the rule based on the number of times of retransmission scheduling, and is not described herein for brevity.
  • the method further includes: receiving, by the first terminal device, the first indication information that is sent by the second terminal device or the network device, where the first indication information is used to indicate the transmission of the PDCP PDU.
  • the first terminal device determines the transmission mode of the packet data convergence layer protocol (PDCP) data unit PDU, and the first terminal device determines the transmission mode of the PDCP PDU according to the first indication information.
  • PDCP packet data convergence layer protocol
  • the network device may also determine a transmission mode of the PDCP PDU based on the foregoing various rules, and directly indicate the determined transmission mode to the terminal device. For example, the network device and the terminal device can agree to use the 1 bit in the downlink control information to indicate the transmission mode, and the agreement is that if the 1 bit value is 0, the transmission mode is a single link transmission mode, and if the 1 bit value is 1 , indicating that the transmission method is a copy data transmission method.
  • the network device and the terminal device can agree to use the 1 bit in the downlink control information to indicate the transmission mode, and the agreement is that if the 1 bit value is 0, the transmission mode is a single link transmission mode, and if the 1 bit value is 1 , indicating that the transmission method is a copy data transmission method.
  • the terminal device itself determines a transmission mode based on the foregoing rule, but the indication information is directly indicated at a certain time to directly indicate the transmission mode, and the directly indicated transmission mode is different from the transmission mode determined by the rule, then the terminal The device can override the transmission method determined by the rule by using the directly indicated transmission mode.
  • the method further includes: determining, by the first terminal device, a link for transmitting the PDCP PDU.
  • the MAC layer of the terminal device first selects the transmission link, that is, which physical layer carriers are scheduled to be scheduled. For example, if the terminal device determines that the transmission mode is a single-link transmission mode, the terminal device may arbitrarily select one link for transmission, or directly determine a link whose retransmission scheduling number is less than the threshold to transmit the PDCP PDU. . The terminal device may also determine the number of retransmission schedules of each link separately, and use the link with the least number of retransmission schedules in all links to transmit the PDCP PDU.
  • the terminal device may arbitrarily select two or more links to transmit the replication data of the PDCP PDU, and the terminal device may also separately determine the continuous initial transmission scheduling on each link. The number of times, the first few links with the highest number of consecutive initial transmissions in all links can be used to transmit the PDCP PDU. The terminal device may determine the MCS value to select a link for transmitting the PDCP PDU. How the terminal device determines the transmission mode of transmitting the PDCP PDU is not limited herein.
  • the method further includes: receiving, by the first terminal device, second indication information that is sent by the second terminal device or the network device, where the second indication information is used to indicate that the PDCP is used for transmitting a link of the PDU; the first terminal device determines the link for transmitting the PDCP PDU according to the second indication information.
  • how the terminal device determines the link for transmitting the PDCP PDU may be directly indicated by the network device.
  • the terminal device can directly transmit through the link indicated by the network device without determining the transmission mode of the PDCP PDU.
  • the indication information indicates a link
  • the terminal device directly transmits the PDCP PDU by using the link indicated by the indication information
  • the indication information indicates multiple links
  • the terminal device may indicate multiple pieces by the indication information.
  • the link directly transmits the PDCP PDU.
  • the terminal device may also determine the transmission mode of the PDCP PDU according to whether the link indicated by the network device is a single link.
  • the transmission mode of the PDCP PDU may be considered as a single-link transmission mode, and the terminal device may indicate the link transmission through the network device, or may transmit the PDCP PDU by using another link.
  • the indication information indicates two or more links, the terminal device may consider that the transmission mode of the PDCP PDU is a duplicate data transmission mode, and the terminal device may use the link indicated by the network device to transmit the replication data of the PDCP PDU. It may also be transmitted by using a part of the link indicated by the network device, and another link may be used to transmit the duplicated data of the PDCP PDU.
  • the network device may indicate to the terminal device the link for transmitting the PDCP PDU, and the terminal device may use the network device to indicate, or may select a link for transmitting the PDCP PDU according to its own situation.
  • the indication information may indicate a handover from a duplicate data transmission mode to a PDCP layer replication data transmission mode.
  • the physical layer carrier mapped by the replication data of the PDCP PDU may be updated, that is, the link for transmitting the replication data. A change occurs; the indication information may also indicate a handover from a duplicate data transmission mode to a single link transmission mode, and clearly support on which link the PDCP PDU is transmitted; the indication information may also indicate a single link transmission mode to copy data.
  • the switching of the transmission mode, and indicating on which links the PDCP PDU transmits the replication data; the indication information may also indicate that the transmission link is updated from the single-link transmission mode to the single-link transmission mode.
  • other links may be used to transmit other PDCP PDUs, such as some PDCP PDUs that require less high reliability for data transmission.
  • the method for transmitting data in the embodiment of the present application can dynamically switch the transmission of the PDCP PDU.
  • the transmission mode can well balance the resource utilization and the reliability of data transmission.
  • FIG. 4 shows a schematic block diagram of a method 200 of transmitting data in an embodiment of the present application. As shown in FIG. 4, the method 200 includes:
  • the network device determines a transmission mode of a packet data convergence layer protocol PDCP protocol data unit PDU of the first terminal device, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode;
  • the network device sends first indication information to the first terminal device, where the first indication information is used to indicate a transmission mode of the PDCP PDU.
  • the method for transmitting data in the embodiment of the present application can well balance resource utilization and reliability of data transmission.
  • the network device may not notify the terminal device.
  • the terminal device may determine the transmission mode of the PDCP PDU by using the configured rules.
  • the network device determines a transmission manner of a packet data convergence layer protocol PDCP protocol data unit PDU of the first terminal device, where the network device determines, according to channel quality information of the at least one link, The transmission mode of the PDCP PDU.
  • the channel quality information of the at least one link includes the number of times the at least one link retransmits the scheduling in the first time period, and the at least one link is continuously in the second time period.
  • the number of times of scheduling or the modulation and coding policy MCS value of each link the network device determines the transmission mode of the PDCP PDU according to the channel quality information of the at least one link, including: the network device is according to the at least one link The number of retransmission schedules in the first time period, the number of consecutive initial transmission schedules of each link in the second time period, or the modulation and coding policy MCS value of each link, determines the transmission mode of the PDCP PDU.
  • the network device determines the transmission mode of the PDCP PDU according to the retransmission of the number of times of the at least one link in the first time period, including: if any of the at least one link The number of retransmission schedules of a link is less than or equal to the first threshold, and the network device determines that the transmission mode of the PDCP PDU is a single link transmission mode; if the number of retransmission schedules of each link in the at least one link If the first threshold is greater than the first threshold, the network device determines that the PDCP PDU is transmitted in a replication data transmission manner.
  • the network device determines, according to the consecutive initial transmission scheduling times of the at least one link in the second time period, the transmission manner of the PDCP PDU, including: The number of consecutive initial transmissions of any one of the links is greater than or equal to the second threshold, and the network device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; if each link in the at least one link The number of consecutive initial transmission schedules is less than the second threshold, and the network device determines that the transmission mode of the PDCP PDU is a duplicate data transmission mode.
  • the network device determines, according to the MCS value of the at least one link, a transmission mode of the PDCP PDU, including: if the MCS value of any one of the at least one link is greater than Or the third threshold, the network device determines that the transmission mode of the PDCP PDU is a single-link transmission mode; if the MCS value of each link in the at least one link is less than the third threshold, the network device determines the The transmission mode of the PDCP PDU is the copy data transmission mode.
  • the at least one link is a multiple link
  • the method further includes: if the transmission mode of the PDCP PDU is a single link transmission mode, the network device uses the multiple links The link with the best channel quality is determined as the link for transmitting the PDCP PDU, or if the transmission mode of the PDCP PDU is the copy data transmission mode, the network device according to the channel of each link of the multiple links Determining, in descending order of priority, a plurality of links of the plurality of links as a link for transmitting the PDCP PDU; the network device sending the second indication information to the first terminal device, The second indication information is used to indicate the link for transmitting the PDCP PDU.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 5 shows a schematic block diagram of a terminal device 300 for transmitting data according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the processing unit 310 is configured to determine a transmission mode of a packet data convergence layer protocol PDCP protocol data unit PDU, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode;
  • the sending unit 320 is configured to send the PDCP PDU to the second terminal device or the network device according to the transmission manner of the PDCP PDU.
  • the method for transmitting data in the embodiment of the present application can dynamically switch the transmission mode of the PDCP PDU, and can well balance the resource utilization and the reliability of the data transmission.
  • the processing unit 310 is specifically configured to: according to at least one The channel quality information of the links determines the transmission mode of the PDCP PDU.
  • the channel quality information of the at least one link includes the number of times the at least one link retransmits the scheduling in the first time period, and the at least one link is in the second time period.
  • the number of consecutive initial transmission schedules or the modulation and coding policy MCS value of the at least one link where the processing unit 310 is specifically configured to: retransmit the scheduling number according to the at least one link in the first time period, And determining, by the at least one link, the number of scheduled initial transmissions or the modulation and coding policy MCS value of the at least one link in the second time period, and determining a transmission manner of the PDCP PDU.
  • the processing unit 310 is specifically configured to: if the number of retransmission schedules of any one of the at least one link is less than or equal to a first threshold, determine the The transmission mode of the PDCP PDU is a single-link transmission mode; or if the number of retransmission schedules of each of the at least one link is greater than the first threshold, determining that the PDCP PDU is transmitted in the manner of Copy the data transfer method.
  • the processing unit 310 is specifically configured to: if the consecutive initial scheduling times of any one of the at least one link is greater than or equal to a second threshold, determine The transmission mode of the PDCP PDU is a single-link transmission mode; or the transmission of the PDCP PDU is determined if the consecutive initial transmission scheduling times of each link in the at least one link are smaller than the second threshold The way is to copy the data transmission method.
  • the processing unit 310 is specifically configured to: if the MCS value of the at least one link is greater than or equal to a third threshold, determine that the transmission mode of the PDCP PDU is a single chain. If the MCS value of each link in the at least one link is smaller than the third threshold, determining that the PDCP PDU is transmitted in a replication data transmission manner.
  • the terminal device 300 further includes: a receiving unit 330, configured to receive first indication information that is sent by the second terminal device or a network device, where the first indication information is used. And indicating the transmission mode of the PDCP PDU.
  • the processing unit 310 is specifically configured to: determine, according to the first indication information, a transmission mode of the PDCP PDU.
  • the at least one link is a plurality of links
  • the processing unit 310 is further configured to: if the transmission mode of the PDCP PDU is a single link transmission mode, the multiple chains The link with the best channel quality in the path is determined as the link for transmitting the PDCP PDU; or if the transmission mode of the PDCP PDU is the copy data transmission mode, according to the channel quality of each link of the multiple links Determining the plurality of links in the plurality of links as the order of priority from high to low The link that transmits the replicated data of the PDCP PDU.
  • the receiving unit 330 is further configured to: receive second indication information that is sent by the second terminal device or the network device, where the second indication information is used to indicate that the The processing unit is configured to: determine, according to the second indication information, the link used to transmit the PDCP PDU.
  • terminal device 300 for transmitting data may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 300 respectively implement FIG. 3
  • the corresponding process of the terminal device in the method is not described here for brevity.
  • FIG. 6 shows a schematic block diagram of a network device 400 for transmitting data in accordance with an embodiment of the present application.
  • the network device 400 includes:
  • the processing unit 410 is configured to determine a transmission mode of a packet data convergence layer protocol PDCP protocol data unit PDU of the first terminal device, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode;
  • the sending unit 420 is configured to send first indication information to the first terminal device, where the first indication information is used to indicate a transmission mode of the PDCP PDU.
  • the method for transmitting data in the embodiment of the present application can dynamically switch the transmission mode of the PDCP PDU, and can well balance the resource utilization and the reliability of the data transmission.
  • the processing unit 410 is specifically configured to: determine, according to channel quality information of the at least one link, a transmission manner of the PDCP PDU.
  • the channel quality information of the at least one link includes the number of times the at least one link retransmits the scheduling in the first time period, and the at least one link is in the second time period.
  • the processing unit 410 is specifically configured to: retransmit the number of scheduling times in the first time period according to the at least one link, and the number of consecutive initial transmission scheduling times or the modulation and coding policy MCS value of each link Each link continuously transmits a number of scheduling times or a modulation and coding policy MCS value of each link in a second time period to determine a transmission mode of the PDCP PDU.
  • the processing unit 410 is specifically configured to: if the number of retransmission schedules of any one of the at least one link is less than or equal to a first threshold, determine the The transmission mode of the PDCP PDU is a single-link transmission mode; if the number of retransmission schedules of each link in the at least one link is greater than the first threshold, determining that the PDCP PDU is transmitted in a replication manner transfer method.
  • the processing unit 410 is specifically configured to: if the number of consecutive initial scheduling of any one of the at least one link is greater than or equal to a second threshold, determine the The transmission mode of the PDCP PDU is a single-link transmission mode; if the number of consecutive initial transmissions of each link in the at least one link is less than the second threshold, it is determined that the transmission mode of the PDCP PDU is a replication Data transmission method.
  • the processing unit 410 is specifically configured to: if the MCS value of any one of the at least one link is greater than or equal to a third threshold, determine the PDCP PDU.
  • the transmission mode is a single-link transmission mode. If the MCS value of each link in the at least one link is smaller than the third threshold, the transmission mode of the PDCP PDU is determined to be a duplicate data transmission mode.
  • the at least one link is a plurality of links
  • the processing unit 410 is further configured to: if the transmission mode of the PDCP PDU is a single link transmission mode, the multiple links are The link with the best channel quality is determined as the link for transmitting the PDCP PDU, or if the transmission mode of the PDCP PDU is the copy data transmission mode, the channel quality according to each link of the multiple links is prioritized.
  • the sending unit 420 is further configured to: send a second to the first terminal device
  • the indication information is used to indicate the link for transmitting the PDCP PDU.
  • the network device 400 for transmitting data may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 400 respectively implement FIG. 4
  • the corresponding process of the network device in the method is not described here for brevity.
  • the embodiment of the present application further provides a terminal device 500 for transmitting data, which may be the terminal device 300 in FIG. 5, which can be used to execute a terminal corresponding to the method 100 in FIG.
  • the content of the device includes an input interface 510, an output interface 520, a processor 530, and a memory 540.
  • the input interface 510, the output interface 520, the processor 530, and the memory 540 can be connected by a bus system.
  • the memory 540 is configured to store programs, instructions or code.
  • the processor 530 is configured to execute a program, an instruction or a code in the memory 540 to control the input interface 510 to receive a signal, control the output interface 520 to send a signal, and complete the operations in the foregoing method embodiments.
  • the terminal device for transmitting data in the embodiment of the present application can dynamically switch the transmission mode of the PDCP PDU, and can well balance resource utilization and reliability of data transmission.
  • the processor 530 may be a central processing unit (CPU), and the processor 530 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 540 can include read only memory and random access memory and provides instructions and data to the processor 530. A portion of the memory 540 may also include a non-volatile random access memory. For example, the memory 540 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the sending unit 320 in the terminal device 300 can be implemented by the output interface 520 in FIG. 7, and the processing unit 310 in the terminal device 300 can be implemented by the processor 530 in FIG.
  • the receiving unit 330 can be implemented by the input interface 510 in FIG.
  • the embodiment of the present application further provides a network device 600 for transmitting data, which may be the network device 400 in FIG. 6, which can be used to execute a network corresponding to the method 200 in FIG.
  • the content of the device includes an input interface 610, an output interface 620, a processor 630, and a memory 640.
  • the input interface 610, the output interface 620, the processor 630, and the memory 640 can be connected by a bus system.
  • the memory 640 is used to store programs, instructions or code.
  • the processor 630 is configured to execute a program, an instruction or a code in the memory 640 to control the input interface 610 to receive a signal, control the output interface 620 to send a signal, and complete the operations in the foregoing method embodiments.
  • the network device for transmitting data in the embodiment of the present application can dynamically switch the transmission mode of the PDCP PDU, and can well balance the resource utilization and the reliability of the data transmission.
  • the processor 630 may be a central processing unit (CPU), and the processor 630 may also be other general-purpose processors, digital signals.
  • processor ASIC, off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 640 can include read only memory and random access memory and provides instructions and data to the processor 630. A portion of the memory 640 can also include a non-volatile random access memory. For example, the memory 640 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 630 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the processing unit 410 in the network device 400 can be implemented by the processor 630 of FIG. 8, and the sending unit 420 can be implemented by the output interface 620 of FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated as The components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method of various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Abstract

本申请实施例公开了一种传输数据的方法、终端设备和网络设备，该方法包括：第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，该传输方式包括复制数据传输方式或单链路传输方式；该第一终端设备根据该PDCP PDU的传输方式，向第二终端设备或网络设备发送该PDCP PDU。本申请实施例的方法、终端设备和网络设备，有利于平衡资源利用率和数据传输的可靠性之间的关系。

Description

传输数据的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种传输数据的方法、终端设备和网络设备。
背景技术
在载波聚合场景下，分组数据汇聚层协议(Packet Data Convergence Protocol，PDCP)协议层发端可以支持数据复制功能，即将一个PDCP协议数据单元(Protocol Data Unit，PDU)复制成两份(可能多份)，以此来提高数据传输的可靠性。现有技术中直接采用复制数据传输方式导致了极低的资源利用率。
发明内容
有鉴于此，本申请实施例提供了一种传输数据的方法、终端设备和网络设备，有利于平衡资源利用率和数据传输的可靠性之间的关系。
第一方面，提供了一种传输数据的方法，该方法包括：第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，该传输方式包括复制数据传输方式或单链路传输方式；该第一终端设备根据该PDCP PDU的传输方式，向第二终端设备或网络设备发送该PDCP PDU。
通过动态切换数据的传输方式，能够有效地平衡资源利用率和数据传输的可靠性。
可选地，本申请实施例的方案可以应用于上行数据传输的场景，也可应用于终端终端设备到终端设备(Device-to-Device，D2D)通信场景中。
其中，复制数据传输方式是指PDCP使用复制数据传输功能，将一个PDCP PDU复制成多份，分别在多个链路上进行传输；而单链路传输方式是PDCP不使用复制数据传输功能，即PDCP PDU不是复制数据，可以在一个链路中传输一次，也可以将一个PDCP PDU分成多部分在多个链路中传输。换句话说，确定PDCP PDU的传输方式是指PDCP是否使用复制数据传输功能。
可选地，这里的PDCP PDU可以是一些对数据传输有高可靠性要求的业 务。也就是说，在这些业务的PDCP PDU需要传输时，需要确定是否需要对该PDCP PDU进行复制。其它对数据传输没有高要求的PDCP PDU可以不需要确定该传输方式，直接采用单链路传输方式进行传输。
在一种可能的实现方式中，该第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：该第一终端设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式。
这里的链路的信道质量信息可以通过以下信息体现：信道质量指示(Channel quality indicator，CQI)、一定时间段内的重传调度次数、一定时间段内的连续初传调度次数或者调制与编码策略(Modulation and Coding Scheme，MCS)等。
将链路的信道质量跟传输方式关联起来，能够进一步地平衡资源利用率与数据传输的可靠性之间的关系。
在一种可能的实现方式中，该至少一个链路的信道质量信息包括该至少一个链路在第一时间段内重传调度次数、该至少一个链路在第二时间段内连续初传调度次数或该至少一个链路的调制与编码策略MCS值，其中，该第一终端设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式，包括：该第一终端设备根据该至少一个链路在第一时间段内重传调度次数、该至少一个链路在第二时间段内连续初传调度次数或该至少一个链路的调制与编码策略MCS值，确定该PDCP PDU的传输方式。
在一种可能的实现方式，该第一终端设备根据该至少一个链路在第一时间段内重传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的任一个链路的该重传调度次数小于或等于第一门限，该第一终端设备确定该PDCP PDU的传输方式为单链路传输方式；或若该至少一个链路中的每个链路的该重传调度次数均大于该第一门限，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
可选地，该第一终端设备根据该至少一个链路在第一时间段内重传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的每个链路的该重传调度次数均在第一范围内，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
其中，基于第一门限和基于第一范围的规则可以单独采用，也可以是共同采用，但是有一定的优先级，例如，可以是基于第一门限的规则优先级高 于基于第一范围的规则。
第一门限和第一范围可以是由一定时间内重传调度次数对链路的信道质量的影响确定的。
在一种可能的实现方式，该第一终端设备根据该每个链路在第二时间段内连续初传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的任一个链路的该连续初传调度次数大于或等于第二门限，该第一终端设备确定该PDCP PDU的传输方式为单链路传输方式；或若该至少一个链路中的每个链路的该连续初传调度次数均小于该第二门限，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
同样地，第二门限可以是由一定时间内连续初传调度次数对链路的信道质量的影响确定的。
在一种可能的实现方式中，该第一终端设备根据该每个链路的MCS值，确定该PDCP PDU的传输方式，包括：若该至少一个链路的该MCS值大于或等于第三门限，该第一终端设备确定该PDCP PDU的传输方式为单链路传输方式；或若该至少一个链路中的每个链路的该MCS值均小于该第三门限，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
同样地，第三门限可以是由该链路的调制与编码策略值对链路的信道质量的影响确定的。
另外，终端设备可以在判断一条链路的信道质量比较好直接选择单链路传输方式，也可以判断两条或者以上链路的信道质量较差时选择复制数据传输方式。还可以将所有链路的信道质量都判断之后，再确定。
在一种可能的实现方式中，该方法还包括：该第一终端设备接收该第二终端设备或网络设备发送的第一指示信息，该第一指示信息用于指示该PDCP PDU的传输方式；该第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：该第一终端设备根据该第一指示信息，确定该PDCP PDU的传输方式。
可选地，若终端设备本身基于上述规则确定了一种传输方式，但在某个时间收到指示信息直接指示该传输方式，并且直接指示的传输方式与通过规则确定的传输方式不同，那么终端设备可以用该直接指示的传输方式覆盖基于规则确定的传输方式。
在一种可能的实现方式中，该方法还包括：在第一终端设备发送该PDCP  PDU之前，该第一终端设备确定用于传输该PDCP PDU的链路。
在一种可能的实现方式中，该第一终端设备确定用于传输该PDCP PDU的链路，包括：若该PDCP PDU的传输方式为单链路传输方式，该第一终端设备将该多个链路中信道质量最好的链路确定为用于传输该PDCP PDU的链路；或若该PDCP PDU的传输方式为复制数据传输方式，该第一终端设备根据该多个链路中每个链路的信道质量的优先级从高到低的顺序，将该多个链路中的多个链路确定为用于传输该PDCP PDU的复制数据的链路。
若确定是单链路传输方式，第一终端设备还可以任意选择一条链路传输该PDCP PDU。若确定是复制数据传输方式，第一终端设备也可以任意选择多条链路传输该PDCP PDU。
在一种可能的实现方式中，该方法还包括：该第一终端设备接收该第二终端设备或网络设备发送的第二指示信息，该第二指示信息用于传输该PDCP PDU的链路；该第一终端设备确定用于传输该PDCP PDU的链路，包括：该第一终端设备根据该第二指示信息，确定用于传输该PDCP PDU的链路。
网络设备可以向终端设备指示传输PDCP PDU的链路，终端设备可以采用网络设备指示的，也可以根据自己的情况选择传输PDCP PDU的链路。
当终端设备选择了其中部分链路传输该PDCP PDU时，可以采用其他链路来传输别的PDCP PDU。
第二方面，提供了一种传输数据的方法，该方法包括：网络设备确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，该传输方式包括复制数据传输方式或单链路传输方式；该网络设备向该第一终端设备发送第一指示信息，该第一指示信息用于指示该PDCP PDU的传输方式。
在一种可能的实现方式中，该网络设备确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：该网络设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式。
在一种可能的实现方式中，该至少一个链路的信道质量信息包括该至少一个链路在第一时间段内重传调度次数、该至少一个链路在第二时间段内连续初传调度次数或该每个链路的调制与编码策略MCS值，该网络设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式，包括：该网 络设备根据该至少一个链路在第一时间段内重传调度次数、该每个链路在第二时间段内连续初传调度次数或该每个链路的调制与编码策略MCS值，确定该PDCP PDU的传输方式。
在一种可能的实现方式中，该网络设备根据该至少一个链路在第一时间段内重传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的任一个链路的该重传调度次数小于或等于第一门限，该网络设备确定该PDCP PDU的传输方式为单链路传输方式；若该至少一个链路中每个链路的该重传调度次数均大于该第一门限，该第二终端设备或网络设备确定该PDCP PDU的传输方式为复制数据传输方式。
在一种可能的实现方式中，该网络设备根据该至少一个链路在第二时间段内连续初传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中任一个链路的该连续初传调度次数大于或等于第二门限，该网络设备确定该PDCP PDU的传输方式为单链路传输方式；若该至少一个链路中每个链路的该连续初传调度次数均小于该第二门限，该网络设备确定该PDCP PDU的传输方式为复制数据传输方式。
在一种可能的实现方式中，该网络设备根据该至少一个链路的MCS值，确定该PDCP PDU的传输方式，包括：若该至少一个链路中任一个链路的该MCS值大于或等于第三门限，该网络设备确定该PDCP PDU的传输方式为单链路传输方式；若该至少一个链路中每个链路的该MCS值均小于该第三门限，该网络设备确定该PDCP PDU的传输方式为复制数据传输方式。
在一种可能的实现方式中，该至少一个链路为多个链路，该方法还包括：若该PDCP PDU的传输方式为单链路传输方式，该网络设备将该多个链路中信道质量最好的链路确定为用于传输该PDCP PDU的链路，或若该PDCP PDU的传输方式为复制数据传输方式，该网络设备根据该多个链路中每个链路的信道质量的优先级从高到低的顺序，将该多个链路中的多个链路确定为用于传输该PDCP PDU的链路；该网络设备向该第一终端设备发送第二指示信息，该第二指示信息用于指示该用于传输该PDCP PDU的链路。
第三方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面，提供了一种网络设备，用于执行上述第二方面或第一方面的 任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。
第五方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，提供了一种网络设备，该网络设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，提供了一种计算机存储介质，用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了载波聚合场景下的复制数据传输的协议架构图。
图3示出了本申请实施例的传输数据的方法的示意性框图。
图4示出了本申请实施例的传输数据的方法的另一示意性框图。
图5示出了本申请实施例的传输数据的终端设备的示意性框图。
图6示出了本申请实施例的传输数据的网络设备的示意性框图。
图7示出了本申请实施例的传输数据的终端设备的另一示意性框图。
图8示出了本申请实施例的传输数据的网络设备的另一示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多 址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统或未来的5G系统等。
特别地，本申请实施例的技术方案可以应用于各种基于非正交多址接入技术的通信系统，例如稀疏码多址接入(Sparse Code Multiple Access，SCMA)系统、低密度签名(Low Density Signature，LDS)系统等，当然SCMA系统和LDS系统在通信领域也可以被称为其他名称；进一步地，本申请实施例的技术方案可以应用于采用非正交多址接入技术的多载波传输系统，例如采用非正交多址接入技术正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)、滤波器组多载波(Filter Bank Multi-Carrier，FBMC)、通用频分复用(Generalized Frequency Division Multiplexing，GFDM)、滤波正交频分复用(Filtered-OFDM，F-OFDM)系统等。
本申请实施例中的终端设备可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络 设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1是本申请实施例一个应用场景的示意图。图1中的通信系统可以包括终端设备10和网络设备20。网络设备20用于为终端设备10提供通信服务并接入核心网，终端设备10通过搜索网络设备20发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备10与网络设备20之间的蜂窝链路进行的上/下行传输。
在载波聚合场景下，PDCP可以支持数据复制功能，即利用PDCP的复制数据功能，从而使复制的数据对应到两个或者多个逻辑信道，并最终保证复制的多个相同PDCP PDU能够在不同物理层聚合载波上面传输，从而达到频率分集增益以提高数据传输可靠性。
为了便于理解，下面将结合图2简单介绍如何将复制数据调度在不同的物理载波上。如图2所示，PDCP层具有分裂承载复制功能，将PDCP SDU1的数据进程复制封装成PDCP PDU1和PDCP PDU2，PDCP PDU1和PDCP PDU2具有相同的内容，即承载的数据payload和包头header都相同。分别把PDCP PDU1和PDCP PDU2分别映射到不同的无线链路控制(Radio Link Control，RLC)实体，RLC实体把PDCP PDU1和PDCP PDU2放到不同的逻辑信道(逻辑信道1和逻辑信道2上)，对于媒体接入控制(Media Access Control，MAC)来讲，在获知哪些逻辑信道传输同一个PDCP PDU的复制数据之后，将这些复制数据通过不同的混合自动重传请求HARQ实体在不同的载波上传输，例如，将逻辑信道1中承载的复制数据通过HARQ实体1在物理载波1上传输，将逻辑信道2中承载的复制数据通过HARQ实体2在物理载波2上传输。
尽管PDCP层复制数据传输能够利用分集增益有效提高数据传输的可靠性，但明显的缺点该方法导致了极低的系统资源利用率是，即需要用不同的资源来传输相同的内容。
图3示出了本申请实施例的传输数据的方法100的示意性框图。如图3所示，该方法100包括：
S110，第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，该传输方式包括复制数据传输方式或单链路传输方式；
S120，该第一终端设备根据该PDCP PDU的传输方式，向第二终端设备或网络设备发送该PDCP PDU。
需要说明的是，本申请实施例可以应用于终端设备到网络设备的通信场景，也可以应用于终端设备到终端设备的通信场景。
具体地，终端设备可以灵活确定PDCP PDU的传输方式，即具体是是否在PDCP使用复制数据的功能。其中，复制数据传输方式可以是终端设备的PDCP层将一个PDCP PDU复制成多份，并指示给MAC层，MAC层将PDCP PDU的复制数据分别调度在在多个链路即图2中的物理层载波进行传输；单链路传输方式可以是指终端设备的PDCP层不对PDCP PDU复制，并指示给MAC层，MAC层将该PDCP PDU调度在一个或多个链路传输，终端设备在确定是哪种传输方式之后，可以采用确定的传输方式去传输该PDCP PDU。例如，若终端设备确定出传输方式是单链路传输方式，终端设备就可以采用一个链路去传输该PDCP PDU；若终端设备确定出传输方式是复制数据传输方式，终端设备就可以选择多个链路去传输该PDCP PDU的复制数据。
应理解，这里的PDCP PDU可以是一些对数据传输有高可靠性要求的业务。也就是说，在这些业务的PDCP PDU需要传输时，需要确定是否需要对该PDCP PDU进行复制。其它对数据传输没有高要求的PDCP PDU可以不需要确定该传输方式，直接采用单链路传输方式进行传输。
因此，本申请实施例的传输数据的方法，有利于平衡资源利用率和数据传输的可靠性。
可选地，在本申请实施例中，该第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：该第一终端设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式。
应理解，这里的至少一个链路可以针对终端设备的所有链路，也可以针对终端设备中的部分链路。例如，一个终端设备包括5条链路，那么该终端设备可以根据该5条链路各自的信道质量信息，确定该PDCP PDU的传输方式。终端设备还可以根据该5条链路中的部分链路各自的信道质量信息，确定该PDCP PDU的传输方式。
还应理解，该至少一个链路的信道质量信息可以是网络设备告诉终端设备的。例如，网络设备在获得各个链路上的上行信道估计情况之后，可以向终端设备反馈；或者网络设备在获得各个链路上的上行资源使用情况之后， 也可以向终端设备反馈。这里的链路的信道质量信息可以通过以下信息体现：信道质量指示、一定时间段内的重传调度次数、一定时间段内的连续初传调度次数或者调制与编码策略等，本申请实施例并不限于此。
可选地，在本申请实施例中，该第一终端设备根据该至少一个链路在第一时间段内重传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的任一个链路的该重传调度次数小于或等于第一门限，该第一终端设备确定该PDCP PDU的传输方式为单链路传输方式；或若该至少一个链路中的每个链路的该重传调度次数均大于该第一门限，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
可选地，该第一终端设备根据该至少一个链路在第一时间段内重传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的每个链路的该重传调度次数均在第一范围内，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
具体地，可以通过无线资源控制(Radio Resource Control，RRC)来配置一种规则，该规则可以是各个链路的重传调度次数与一个门限的不同大小关系对应不同的传输方式。可以对不同链路上的重传调度次数进行一个统计，并将重传调度次数与信道质量关联起来。举例来说，若发现重传调度次数在一定时间段内小于5次时，信道质量明显好，那么该规则的门限可以设定为5。终端设备可以定时对重传调度次数进行统计，例如，终端设备可以每隔100ms对重传调度次数进行统计，那么终端设备在有PDCP PDU要传输时，可以根据前100ms内的重传调度次数是否在门限之内，若在门限之内，那么至少可以证明该链路上的信道质量比较好，数据传输可靠性也比较高，那么终端设备可以选择用单链路传输的方式；终端设备可以根据一条链路上的重传次数大于门限，来确定采用复制数据传输方式；终端设备还可以根据多条链路上的重传次数都大于门限来确定采用复制数据传输方式。终端设备到底判断几条链路上的重传调度次数与门限的关系，可以基于终端设备实现，本申请实施例并不限于此。
终端设备还可以基于另外一种规则，也就是说终端设备可以确定至少一个链路的重传调度次数在一个范围内，则可以确定待传输PDCP PDU的传输方式为复制数据传输方式。举例来说，若该范围是5次到10次之间，那么终端设备可以判断其中多条链路的重传调度次数是否在5次到10次之间， 若判断了多条链路的重传调度次数都在5次到10次之间，那么可以确定传输方式为复制数据传输方式。
应理解，基于第一范围和第一门限的方案可以共同配置给终端设备，换句话说，可以有两种判断传输方式的规则，但是这两种方案有一个优先级。例如，若基于第一门限的规则优先级优于基于第一范围的规则，那么若终端设备有待传输的PDCP PDU时，可以先判断其中一个链路的重传调度次数是否大于第一门限，若小于，则直接判断该PDCP PDU的传输方式为单链路传输方式；若终端设备判断出来两个链路的重传调度次数都大于第一门限，终端设备可以直接判断该PDCP PDU的传输方式为复制数据传输方式，或者终端设备在判断出来该两个链路的重传调度次数是否都在第一范围之内，若在第一范围之内，那么终端设备可以判断出来该PDCP PDU的传输方式为复制数据传输方式。
还应理解，重传调度次数可以是前一个时间段内的重传调度次数，也可以是前好几个时间段内的重传调度次数的平均值等，本申请实施例对重传调度次数的获取方式并不作限定。
还应理解，上述是对基于各链路的重传调度次数配置的规则进行举例说明，本申请实施例不限于此。
可选地，在本申请实施例中，该第一终端设备根据该每个链路在第二时间段内连续初传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的任一个链路的该连续初传调度次数大于或等于第二门限，该第一终端设备确定该PDCP PDU的传输方式为单链路传输方式；或若该至少一个链路中的每个链路的该连续初传调度次数均小于该第二门限，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
具体地，可以通过RRC来配置一种规则，该规则可以是各个链路的连续初传调度次数与一个门限的不同大小关系对应不同的传输方式。可以对不同链路上的连续初传调度次数进行一个统计，并将连续初传调度次数与信道质量关联起来。举例来说，若发现连续新传调度次数在一定时间段内大于5次时，信道质量明显好，那么该规则的门限可以设定为5。终端设备可以定时对连续新传调度次数进行统计，例如，终端设备可以每隔100ms对重传调度次数进行统计，那么终端设备在有PDCP PDU要传输时，可以根据前100ms内的连续新传调度次数是否在门限之外，若在门限之外，那么至少可以证明 该链路上的信道质量比较好，数据传输可靠性也比较高，那么终端设备可以选择用单链路传输的方式；终端设备可以根据一条链路上的连续新传次数小于门限，来确定采用复制数据传输方式；终端设备还可以根据多条链路上的连续新传调度次数都小于门限来确定采用复制数据传输方式。终端设备到底判断几条链路上的连续新传调度次数与门限的关系，可以基于终端设备实现，本申请实施例并不限于此。
应理解，连续新传调度次数可以是前一个时间段内的连续新传调度次数，也可以是前好几个时间段内的连续新传调度次数的平均值等，本申请实施例对连续新传调度次数的获取方式并不作限定。
还应理解，基于连续新传调度次数的规则与基于重传调度次数的规则类似，为了简洁，在此不再赘述。
可选地，在本申请实施例中，该第一终端设备根据该每个链路的MCS值，确定该PDCP PDU的传输方式，包括：若该至少一个链路的该MCS值大于或等于第三门限，该第一终端设备确定该PDCP PDU的传输方式为单链路传输方式；或若该至少一个链路中的每个链路的该MCS值均小于该第三门限，该第一终端设备确定该PDCP PDU的传输方式为复制数据传输方式。
具体地，可以通过RRC来配置一种规则，该规则可以是各个链路的MCS值与一个门限的不同大小关系对应不同的传输方式。可以将不同链路上的MCS值与信道质量关联起来。举例来说，若发现MCS大于某个门限时，信道质量明显好，那么该规则的门限可以设定为此时的MCS值。终端设备在有PDCP PDU要传输时，可以根据网络设备发送的下行控制信息中的MCS值确定是否大于该规则下的门限，若在大于门限，那么至少可以证明该链路上的信道质量比较好，数据传输可靠性也比较高，那么终端设备可以选择用单链路传输的方式；终端设备可以根据一条链路上的MCS值小于门限，来确定采用复制数据传输方式；终端设备还可以根据多条链路上的MCS值都小于门限来确定采用复制数据传输方式。终端设备到底判断几条链路上的MCS值与门限的关系，可以基于终端设备实现，本申请实施例并不限于此。
应理解，基于MCS值的规则与基于重传调度次数的规则类似，为了简洁，在此不再赘述。
还应理解，上述是以重传调度次数、连续初传调度次数以及MCS值来确定PDCP PDU的传输方式。上述这些个规则可以是单独来实现，也可以是 结合起来实现，并且只要是与信道质量有关的信息都是本申请实施例的保护范围之内。
可选地，在本申请实施例中，该方法还包括：该第一终端设备接收该第二终端设备或网络设备发送的第一指示信息，该第一指示信息用于指示该PDCP PDU的传输方式；该第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：该第一终端设备根据该第一指示信息，确定该PDCP PDU的传输方式。
具体地，网络设备也可以基于上述各种规则去确定PDCP PDU的传输方式，并且将该确定的传输方式直接指示给终端设备。例如，网络设备和终端设备可以约定好用下行控制信息中的1bit来指示该传输方式，并且约定好若该1bit值为0，表示该传输方式为单链路传输方式，若该1bit值为1，表示该传输方式为复制数据传输方式。本领域技术人员理解，上述仅仅是示意性说明，本申请实施例并不限于此。
可选地，若终端设备本身基于上述规则确定了一种传输方式，但在某个时间收到指示信息直接指示该传输方式，并且直接指示的传输方式与通过规则确定的传输方式不同，那么终端设备可以用该直接指示的传输方式覆盖基于规则确定的传输方式。
可选地，在本申请实施例中，该方法还包括：该第一终端设备确定用于传输该PDCP PDU的链路。
具体地，在传输PDCP PDU之前，终端设备的MAC层得先选择传输链路，也就是选择在哪些物理层载波上调度。例如，若终端设备确定出来传输方式是单链路传输方式，终端设备可以任意选择一条链路进行传输，也可以直接将判断的某个重传调度次数小于门限的链路用来传输该PDCP PDU。终端设备也可以分别确定各个链路的重传调度次数，并且将所有链路中重传调度次数最少的链路用来传输该PDCP PDU。若终端设备确定出来传输方式是复制数据传输方式，终端设备可以选择任意选择两条或更多条链路传输该PDCP PDU的复制数据，终端设备还可以分别确定各个链路上的连续初传调度次数，可以将所有链路中连续初传调度次数最多的前几个链路用来传输该PDCP PDU。终端设备可以是判断MCS值的高低，来选择用来传输PDCP PDU的链路。终端设备如何确定传输PDCP PDU的传输方式，在此不作限定。
可选地，在本申请实施例中，该方法还包括：该第一终端设备接收该第二终端设备或网络设备发送的第二指示信息，该第二指示信息用于指示用于传输该PDCP PDU的链路；该第一终端设备根据该第二指示信息，确定该用于传输该PDCP PDU的链路。
也就是说，终端设备如何确定传输该PDCP PDU的链路，可以是网络设备直接指示。在这种情况下，终端设备可以不用判断PDCP PDU的传输方式，直接通过网络设备指示的链路进行传输。换句话说，该指示信息指示了一条链路，那么终端设备通过指示信息指示的链路直接传输该PDCP PDU；该指示信息指示了多条链路，那么终端设备可以通过指示信息指示的多条链路直接传输该PDCP PDU。终端设备也可以根据网络设备指示的链路是否是单条来判断该PDCP PDU的传输方式。例如，指示信息指示了一条，那么可以认为该PDCP PDU的传输方式为单链路传输方式，终端设备可以通过网络设备指示链路传输，也可以采用别的链路传输该PDCP PDU。若指示信息指示了两条或两条以上链路，那么终端设备可以认为该PDCP PDU的传输方式是复制数据传输方式，那么终端设备可以采用网络设备指示的链路来传输该PDCP PDU的复制数据，也可以采用网络设备指示的部分链路来传输，还可以采用别的链路来传输该PDCP PDU的复制数据。总之，网络设备可以向终端设备指示传输PDCP PDU的链路，终端设备可以采用网络设备指示的，也可以根据自己的情况选择传输PDCP PDU的链路。
进一步地，该指示信息可以指示从复制数据传输方式到PDCP层复制数据传输方式的切换，具体地，可以是PDCP PDU的复制数据所映射的物理层载波发生更新，也就是传输复制数据的链路发生变化；指示信息还可以指示从复制数据传输方式到单链路传输方式的切换，并清晰支持该PDCP PDU在哪个链路上传输；该指示信息还可以指示从单链路传输方式到复制数据传输方式的切换，并指示该PDCP PDU在哪些链路上传输复制数据；该指示信息还可以指示从单链路传输方式到单链路传输方式，采用的传输链路发生更新。
当终端设备选择了其中部分链路传输该PDCP PDU时，可以采用其他链路来传输别的PDCP PDU，例如一些对数据传输可靠性要求不那么高的PDCP PDU。
因此，本申请实施例的传输数据的方法，可以动态切换PDCP PDU的传 输方式，能够很好地平衡资源利用率与数据传输的可靠性。
图4示出了本申请实施例的传输数据的方法200的示意性框图。如图4所示，该方法200包括：
S210，网络设备确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，该传输方式包括复制数据传输方式或单链路传输方式；
S220，该网络设备向该第一终端设备发送第一指示信息，该第一指示信息用于指示该PDCP PDU的传输方式。
因此，本申请实施例的传输数据的方法，能够很好地平衡资源利用率与数据传输的可靠性。
应理解，网络设备在确定了PDCP PDU的传输方式之后，也可以不告诉终端设备，同样地，终端设备可以通过配置的规则确定PDCP PDU的传输方式。
可选地，在本申请实施例中，该网络设备确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：该网络设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式。
可选地，在本申请实施例中，该至少一个链路的信道质量信息包括该至少一个链路在第一时间段内重传调度次数、该至少一个链路在第二时间段内连续初传调度次数或该每个链路的调制与编码策略MCS值，该网络设备根据至少一个链路的信道质量信息，确定该PDCP PDU的传输方式，包括：该网络设备根据该至少一个链路在第一时间段内重传调度次数、该每个链路在第二时间段内连续初传调度次数或该每个链路的调制与编码策略MCS值，确定该PDCP PDU的传输方式。
可选地，在本申请实施例中，该网络设备根据该至少一个链路在第一时间段内重传调度次数，确定该PDCP PDU的传输方式，包括：若该至少一个链路中的任一个链路的该重传调度次数小于或等于第一门限，该网络设备确定该PDCP PDU的传输方式为单链路传输方式；若该至少一个链路中每个链路的该重传调度次数均大于该第一门限，该网络设备确定该PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，该网络设备根据该至少一个链路在第二时间段内连续初传调度次数，确定该PDCP PDU的传输方式，包括：若该至少 一个链路中任一个链路的该连续初传调度次数大于或等于第二门限，该网络设备确定该PDCP PDU的传输方式为单链路传输方式；若该至少一个链路中每个链路的该连续初传调度次数均小于该第二门限，该网络设备确定该PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，该网络设备根据该至少一个链路的MCS值，确定该PDCP PDU的传输方式，包括：若该至少一个链路中任一个链路的该MCS值大于或等于第三门限，该网络设备确定该PDCP PDU的传输方式为单链路传输方式；若该至少一个链路中每个链路的该MCS值均小于该第三门限，该网络设备确定该PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，该至少一个链路为多个链路，该方法还包括：若该PDCP PDU的传输方式为单链路传输方式，该网络设备将该多个链路中信道质量最好的链路确定为用于传输该PDCP PDU的链路，或若该PDCP PDU的传输方式为复制数据传输方式，该网络设备根据该多个链路中每个链路的信道质量的优先级从高到低的顺序，将该多个链路中的多个链路确定为用于传输该PDCP PDU的链路；该网络设备向该第一终端设备发送第二指示信息，该第二指示信息用于指示该用于传输该PDCP PDU的链路。
应理解，网络设备描述的网络设备与终端设备的交互及相关特性、功能等与终端设备的相关特性、功能相应。也就是说，终端设备向网络设备发送什么信息，网络设备相应地就会接收什么信息。为了简洁，在此不再赘述。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
图5示出了本申请实施例的传输数据的终端设备300的示意性框图。如图5所示，该终端设备300包括：
处理单元310，用于确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，所述传输方式包括复制数据传输方式或单链路传输方式；
发送单元320，用于根据所述PDCP PDU的传输方式，向第二终端设备或网络设备发送所述PDCP PDU。
因此，本申请实施例的传输数据的方法，可以动态切换PDCP PDU的传输方式，能够很好地平衡资源利用率与数据传输的可靠性。
可选地，在本申请实施例中，所述处理单元310具体用于：根据至少一 个链路的信道质量信息，确定所述PDCP PDU的传输方式。
可选地，在本申请实施例中，所述至少一个链路的信道质量信息包括所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述至少一个链路的调制与编码策略MCS值，其中，所述处理单元310具体用于：根据所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述至少一个链路的调制与编码策略MCS值，确定所述PDCP PDU的传输方式。
可选地，在本申请实施例中，所述处理单元310具体用于：若所述至少一个链路中的任一个链路的所述重传调度次数小于或等于第一门限，确定所述PDCP PDU的传输方式为单链路传输方式；或若所述至少一个链路中的每个链路的所述重传调度次数均大于所述第一门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，所述处理单元310具体用于：若所述至少一个链路中的任一个链路的所述连续初传调度次数大于或等于第二门限，确定所述PDCP PDU的传输方式为单链路传输方式；或若所述至少一个链路中的每个链路的所述连续初传调度次数均小于所述第二门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，所述处理单元310具体用于：若所述至少一个链路的所述MCS值大于或等于第三门限，确定所述PDCP PDU的传输方式为单链路传输方式；或若所述至少一个链路中的每个链路的所述MCS值均小于所述第三门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，所述终端设备300还包括：接收单元330，用于接收所述第二终端设备或网络设备发送的第一指示信息，所述第一指示信息用于指示所述PDCP PDU的传输方式；所述处理单元310具体用于：根据所述第一指示信息，确定所述PDCP PDU的传输方式。
可选地，在本申请实施例中，该至少一个链路为多个链路，所述处理单元310还用于：若该PDCP PDU的传输方式为单链路传输方式，将该多个链路中信道质量最好的链路确定为用于传输该PDCP PDU的链路；或若该PDCP PDU的传输方式为复制数据传输方式，根据该多个链路中每个链路的信道质量的优先级从高到低的顺序，将该多个链路中的多个链路确定为用于 传输该PDCP PDU的复制数据的链路。
可选地，在本申请实施例中，所述接收单元330还用于：接收所述第二终端设备或网络设备发送的第二指示信息，所述第二指示信息用于指示用于传输所述PDCP PDU的链路；所述处理单元具体用于：根据所述第二指示信息，确定所述用于传输所述PDCP PDU的链路。
应理解，根据本申请实施例的传输数据的终端设备300可对应于本申请方法实施例中的终端设备，并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图3方法中终端设备的相应流程，为了简洁，在此不再赘述。
图6示出了根据本申请实施例的传输数据的网络设备400的示意性框图。如图6所示，该网络设备400包括：
处理单元410，用于确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，所述传输方式包括复制数据传输方式或单链路传输方式；
发送单元420，用于向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示所述PDCP PDU的传输方式。
因此，本申请实施例的传输数据的方法，可以动态切换PDCP PDU的传输方式，能够很好地平衡资源利用率与数据传输的可靠性。
可选地，在本申请实施例中，所述处理单元410具体用于：根据至少一个链路的信道质量信息，确定所述PDCP PDU的传输方式。
可选地，在本申请实施例中，所述至少一个链路的信道质量信息包括所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述每个链路的调制与编码策略MCS值，所述处理单元410具体用于：根据所述至少一个链路在第一时间段内重传调度次数、所述每个链路在第二时间段内连续初传调度次数或所述每个链路的调制与编码策略MCS值，确定所述PDCP PDU的传输方式。
可选地，在本申请实施例中，所述处理单元410具体用于：若所述至少一个链路中的任一个链路的所述重传调度次数小于或等于第一门限，确定所述PDCP PDU的传输方式为单链路传输方式；若所述至少一个链路中每个链路的所述重传调度次数均大于所述第一门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，所述处理单元410具体用于：若所述至少一个链路中任一个链路的所述连续初传调度次数大于或等于第二门限，确定所述PDCP PDU的传输方式为单链路传输方式；若所述至少一个链路中每个链路的所述连续初传调度次数均小于所述第二门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，所述处理单元410具体用于：若所述至少一个链路中任一个链路的所述MCS值大于或等于第三门限，确定所述PDCP PDU的传输方式为单链路传输方式；若所述至少一个链路中每个链路的所述MCS值均小于所述第三门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地，在本申请实施例中，该至少一个链路为多个链路，该处理单元410还用于：若该PDCP PDU的传输方式为单链路传输方式，将该多个链路中信道质量最好的链路确定为用于传输该PDCP PDU的链路，或若该PDCP PDU的传输方式为复制数据传输方式，根据该多个链路中每个链路的信道质量的优先级从高到低的顺序，将该多个链路中的多个链路确定为用于传输该PDCP PDU的链路；所述发送单元420还用于：向该第一终端设备发送第二指示信息，该第二指示信息用于指示该用于传输该PDCP PDU的链路。
应理解，根据本申请实施例的传输数据的网络设备400可对应于本申请方法实施例中的网络设备，并且网络设备400中的各个单元的上述和其它操作和/或功能分别为了实现图4方法中网络设备的相应流程，为了简洁，在此不再赘述。
如图7所示，本申请实施例还提供了一种传输数据的终端设备500，该终端设备500可以是图5中的终端设备300，其能够用于执行与图3中方法100对应的终端设备的内容。该终端设备500包括：输入接口510、输出接口520、处理器530以及存储器540，该输入接口510、输出接口520、处理器530和存储器540可以通过总线系统相连。所述存储器540用于存储包括程序、指令或代码。所述处理器530，用于执行所述存储器540中的程序、指令或代码，以控制输入接口510接收信号、控制输出接口520发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的传输数据的终端设备，可以动态切换PDCP PDU的传输方式，能够很好地平衡资源利用率与数据传输的可靠性。
应理解，在本申请实施例中，该处理器530可以是中央处理单元(Central Processing Unit，CPU)，该处理器530还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器540可以包括只读存储器和随机存取存储器，并向处理器530提供指令和数据。存储器540的一部分还可以包括非易失性随机存取存储器。例如，存储器540还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器530中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器540，处理器530读取存储器540中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，终端设备300中的发送单元320可以由图7中的输出接口520实现，终端设备300中的处理单元310可以由图7中的处理器530实现，终端设备300中的接收单元330可以由图7中的输入接口510实现。
如图8所示，本申请实施例还提供了一种传输数据的网络设备600，该网络设备600可以是图6中的网络设备400，其能够用于执行与图4中方法200对应的网络设备的内容。该网络设备600包括：输入接口610、输出接口620、处理器630以及存储器640，该输入接口610、输出接口620、处理器630和存储器640可以通过总线系统相连。所述存储器640用于存储包括程序、指令或代码。所述处理器630，用于执行所述存储器640中的程序、指令或代码，以控制输入接口610接收信号、控制输出接口620发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的传输数据的网络设备，可以动态切换PDCP PDU的传输方式，能够很好地平衡资源利用率与数据传输的可靠性。
应理解，在本申请实施例中，该处理器630可以是中央处理单元(Central Processing Unit，CPU)，该处理器630还可以是其他通用处理器、数字信号 处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器640可以包括只读存储器和随机存取存储器，并向处理器630提供指令和数据。存储器640的一部分还可以包括非易失性随机存取存储器。例如，存储器640还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器630中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器640，处理器630读取存储器640中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，网络设备400中的处理单元410可以用图8的处理器630实现，发送单元420可以由图8中的输出接口620实现。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同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的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
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，该单元的划分，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，机械或其它的形式。
该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网络单元上。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，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。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或者该技术方案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一个存储介质中，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该方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
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，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，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该以权利要求的保护范围为准。

Claims (32)

  1. 一种传输数据的方法，其特征在于，包括：
    第一终端设备确定待传输的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，所述传输方式包括复制数据传输方式或单链路传输方式；
    所述第一终端设备根据所述PDCP PDU的传输方式，向第二终端设备或网络设备发送所述PDCP PDU。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端设备确定待传输的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：
    所述第一终端设备根据至少一个链路的信道质量信息，确定所述PDCP PDU的传输方式。
  3. 根据权利要求2所述的方法，其特征在于，所述至少一个链路的信道质量信息包括所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述至少一个链路的调制与编码策略MCS值，
    其中，所述第一终端设备根据至少一个链路的信道质量信息，确定所述PDCP PDU的传输方式，包括：
    所述第一终端设备根据所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述至少一个链路的MCS值，确定所述PDCP PDU的传输方式。
  4. 根据权利要求3所述的方法，其特征在于，所述第一终端设备根据所述至少一个链路在第一时间段内重传调度次数，确定所述PDCP PDU的传输方式，包括：
    若所述至少一个链路中的任一个链路的所述重传调度次数小于或等于第一门限，所述第一终端设备确定所述PDCP PDU的传输方式为单链路传输方式；或
    若所述至少一个链路中的每个链路的所述重传调度次数均大于所述第一门限，所述第一终端设备确定所述PDCP PDU的传输方式为复制数据传输方式。
  5. 根据权利要求3所述的方法，所述第一终端设备根据所述每个链路在第二时间段内连续初传调度次数，确定所述PDCP PDU的传输方式，包括：
    若所述至少一个链路中的任一个链路的所述连续初传调度次数大于或 等于第二门限，所述第一终端设备确定所述PDCP PDU的传输方式为单链路传输方式；或
    若所述至少一个链路中的每个链路的所述连续初传调度次数均小于所述第二门限，所述第一终端设备确定所述PDCP PDU的传输方式为复制数据传输方式。
  6. 根据权利要求3所述的方法，其特征在于，所述第一终端设备根据所述每个链路的MCS值，确定所述PDCP PDU的传输方式，包括：
    若所述至少一个链路的所述MCS值大于或等于第三门限，所述第一终端设备确定所述PDCP PDU的传输方式为单链路传输方式；或
    若所述至少一个链路中的每个链路的所述MCS值均小于所述第三门限，所述第一终端设备确定所述PDCP PDU的传输方式为复制数据传输方式。
  7. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备接收所述第二终端设备或网络设备发送的第一指示信息，所述第一指示信息用于指示所述PDCP PDU的传输方式；
    所述第一终端设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：
    所述第一终端设备根据所述第一指示信息，确定所述PDCP PDU的传输方式。
  8. 根据权利要求2至6中任一项所述的方法，其特征在于，所述至少一个链路为多个链路，所述方法还包括：
    若所述PDCP PDU的传输方式为单链路传输方式，所述第一终端设备将所述多个链路中信道质量最好的链路确定为用于传输所述PDCP PDU的链路；或
    若所述PDCP PDU的传输方式为复制数据传输方式，所述第一终端设备根据所述多个链路中每个链路的信道质量的优先级从高到低的顺序，将所述多个链路中的多个链路确定为用于传输所述PDCP PDU的复制数据的链路。
  9. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备接收所述第二终端设备或网络设备发送的第二指示信息，所述第二指示信息用于指示用于传输所述PDCP PDU的链路；
    所述第一终端设备根据所述第二指示信息，确定所述用于传输所述 PDCP PDU的链路。
  10. 一种传输数据的方法，其特征在于，包括：
    网络设备确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，所述传输方式包括复制数据传输方式或单链路传输方式；
    所述网络设备向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示所述PDCP PDU的传输方式。
  11. 根据权利要求10所述的方法，其特征在于，所述网络设备确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，包括：
    所述网络设备根据至少一个链路的信道质量信息，确定所述PDCP PDU的传输方式。
  12. 根据权利要求11所述的方法，其特征在于，所述至少一个链路的信道质量信息包括所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述每个链路的调制与编码策略MCS值，
    其中，所述网络设备根据至少一个链路的信道质量信息，确定所述PDCPPDU的传输方式，包括：
    所述网络设备根据所述至少一个链路在第一时间段内重传调度次数、所述每个链路在第二时间段内连续初传调度次数或所述每个链路的调制与编码策略MCS值，确定所述PDCP PDU的传输方式。
  13. 根据权利要求12所述的方法，其特征在于，所述网络设备根据所述至少一个链路在第一时间段内重传调度次数，确定所述PDCP PDU的传输方式，包括：
    若所述至少一个链路中的任一个链路的所述重传调度次数小于或等于第一门限，所述网络设备确定所述PDCP PDU的传输方式为单链路传输方式；
    若所述至少一个链路中每个链路的所述重传调度次数均大于所述第一门限，所述网络设备确定所述PDCP PDU的传输方式为复制数据传输方式。
  14. 根据权利要求12所述的方法，其特征在于，所述网络设备根据所述至少一个链路在第二时间段内连续初传调度次数，确定所述PDCP PDU的传输方式，包括：
    若所述至少一个链路中任一个链路的所述连续初传调度次数大于或等于第二门限，所述网络设备确定所述PDCP PDU的传输方式为单链路传输方式；
    若所述至少一个链路中每个链路的所述连续初传调度次数均小于所述第二门限，所述网络设备确定所述PDCP PDU的传输方式为复制数据传输方式。
  15. 根据权利要求12所述的方法，其特征在于，所述网络设备根据所述至少一个链路的MCS值，确定所述PDCP PDU的传输方式，包括：
    若所述至少一个链路中任一个链路的所述MCS值大于或等于第三门限，所述网络设备确定所述PDCP PDU的传输方式为单链路传输方式；
    若所述至少一个链路中每个链路的所述MCS值均小于所述第三门限，所述网络设备确定所述PDCP PDU的传输方式为复制数据传输方式。
  16. 根据权利要求10至15中任一项所述的方法，其特征在于，所述至少一个链路为多个链路，所述方法还包括：
    若所述PDCP PDU的传输方式为单链路传输方式，所述网络设备将所述多个链路中信道质量最好的链路确定为用于传输所述PDCP PDU的链路，或
    若所述PDCP PDU的传输方式为复制数据传输方式，所述网络设备根据所述多个链路中每个链路的信道质量的优先级从高到低的顺序，将所述多个链路中的多个链路确定为用于传输所述PDCP PDU的链路；
    所述网络设备向所述第一终端设备发送第二指示信息，所述第二指示信息用于指示所述用于传输所述PDCP PDU的链路。
  17. 一种传输数据的终端设备，其特征在于，所述终端设备为第一终端设备，所述终端设备包括：
    处理单元，用于确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，所述传输方式包括复制数据传输方式或单链路传输方式；
    发送单元，用于根据所述PDCP PDU的传输方式，向第二终端设备或网络设备发送所述PDCP PDU。
  18. 根据权利要求17所述的终端设备，其特征在于，所述处理单元具体用于：
    根据至少一个链路的信道质量信息，确定所述PDCP PDU的传输方式。
  19. 根据权利要求18所述的终端设备，其特征在于，所述至少一个链 路的信道质量信息包括所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述至少一个链路的调制与编码策略MCS值，其中，所述处理单元具体用于：
    根据所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述至少一个链路的调制与编码策略MCS值，确定所述PDCP PDU的传输方式。
  20. 根据权利要求19所述的终端设备，其特征在于，所述处理单元具体用于：
    若所述至少一个链路中的任一个链路的所述重传调度次数小于或等于第一门限，确定所述PDCP PDU的传输方式为单链路传输方式；或
    若所述至少一个链路中的每个链路的所述重传调度次数均大于所述第一门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
  21. 根据权利要求19所述的终端设备，其特征在于，所述处理单元具体用于：
    若所述至少一个链路中的任一个链路的所述连续初传调度次数大于或等于第二门限，确定所述PDCP PDU的传输方式为单链路传输方式；或
    若所述至少一个链路中的每个链路的所述连续初传调度次数均小于所述第二门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
  22. 根据权利要求19所述的终端设备，其特征在于，所述处理单元具体用于：
    若所述至少一个链路的所述MCS值大于或等于第三门限，确定所述PDCP PDU的传输方式为单链路传输方式；或
    若所述至少一个链路中的每个链路的所述MCS值均小于所述第三门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
  23. 根据权利要求17所述的终端设备，所述终端设备还包括：
    接收单元，用于接收所述第二终端设备或网络设备发送的第一指示信息，所述第一指示信息用于指示所述PDCP PDU的传输方式；
    所述处理单元具体用于：
    根据所述第一指示信息，确定所述PDCP PDU的传输方式。
  24. 根据权利要求18至22中任一项所述的终端设备，其特征在于，所述至少一个链路为多个链路，所述处理单元还用于：
    若所述PDCP PDU的传输方式为单链路传输方式，将所述至少一个链路中信道质量最好的链路确定为用于传输所述PDCP PDU的链路；或
    若所述PDCP PDU的传输方式为复制数据传输方式，所述第一终端设备根据所述多个链路中每个链路的信道质量的优先级从高到低的顺序，将所述多个链路中的多个链路确定为用于传输所述PDCP PDU的链路。
  25. 根据权利要求23所述的终端设备，其特征在于，所述接收单元还用于：
    接收所述第二终端设备或网络设备发送的第二指示信息，所述第二指示信息用于指示用于传输所述PDCP PDU的链路；
    所述处理单元具体用于：
    根据所述第二指示信息，确定所述用于传输所述PDCP PDU的链路。
  26. 一种传输数据的网络设备，其特征在于，所述网络设备包括：
    处理单元，用于确定第一终端设备的分组数据汇聚层协议PDCP协议数据单元PDU的传输方式，所述传输方式包括复制数据传输方式或单链路传输方式；
    发送单元，用于向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示所述PDCP PDU的传输方式。
  27. 根据权利要求26所述的网络设备，其特征在于，所述处理单元具体用于：
    根据至少一个链路的信道质量信息，确定所述PDCP PDU的传输方式。
  28. 根据权利要求27所述的网络设备，其特征在于，所述至少一个链路的信道质量信息包括所述至少一个链路在第一时间段内重传调度次数、所述至少一个链路在第二时间段内连续初传调度次数或所述每个链路的调制与编码策略MCS值，所述处理单元具体用于：
    根据所述至少一个链路在第一时间段内重传调度次数、所述每个链路在第二时间段内连续初传调度次数或所述每个链路的调制与编码策略MCS值，确定所述PDCP PDU的传输方式。
  29. 根据权利要求28所述的网络设备，其特征在于，所述处理单元具体用于：
    若所述至少一个链路中的任一个链路的所述重传调度次数小于或等于第一门限，确定所述PDCP PDU的传输方式为单链路传输方式；
    若所述至少一个链路中每个链路的所述重传调度次数均大于所述第一门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
  30. 根据权利要求28所述的网络设备，其特征在于，所述处理单元具体用于：
    若所述至少一个链路中任一个链路的所述连续初传调度次数大于或等于第二门限，确定所述PDCP PDU的传输方式为单链路传输方式；
    若所述至少一个链路中每个链路的所述连续初传调度次数均小于所述第二门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
  31. 根据权利要求28所述的网络设备，其特征在于，所述处理单元具体用于：
    若所述至少一个链路中任一个链路的所述MCS值大于或等于第三门限，确定所述PDCP PDU的传输方式为单链路传输方式；
    若所述至少一个链路中每个链路的所述MCS值均小于所述第三门限，确定所述PDCP PDU的传输方式为复制数据传输方式。
  32. 根据权利要求26至31中任一项所述的网络设备，其特征在于，所述至少一个链路为多个链路，所述处理单元还用于：
    若所述PDCP PDU的传输方式为单链路传输方式，将所述多个链路中信道质量最好的链路确定为用于传输所述PDCP PDU的链路，或
    若所述PDCP PDU的传输方式为复制数据传输方式，根据所述多个链路中每个链路的信道质量的优先级从高到低的顺序，将所述多个链路中的多个链路确定为用于传输所述PDCP PDU的链路；
    所述发送单元还用于：
    向所述第一终端设备发送第二指示信息，所述第二指示信息用于指示用于传输所述PDCP PDU的链路。
PCT/CN2017/077931 2017-03-23 2017-03-23 传输数据的方法、终端设备和网络设备 WO2018170855A1 (zh)

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