WO2019047124A1 - 用于传输数据的方法和终端设备 - Google Patents

用于传输数据的方法和终端设备 Download PDF

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Publication number
WO2019047124A1
WO2019047124A1 PCT/CN2017/100950 CN2017100950W WO2019047124A1 WO 2019047124 A1 WO2019047124 A1 WO 2019047124A1 CN 2017100950 W CN2017100950 W CN 2017100950W WO 2019047124 A1 WO2019047124 A1 WO 2019047124A1
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Prior art keywords
network device
terminal device
drb
state
data transmission
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PCT/CN2017/100950
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English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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Filing date
Publication date
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 KR1020207005468A priority Critical patent/KR20200049769A/ko
Priority to JP2020511765A priority patent/JP2020536405A/ja
Priority to CN201780049120.2A priority patent/CN109644490B/zh
Priority to EP17924666.5A priority patent/EP3672302B1/en
Priority to PCT/CN2017/100950 priority patent/WO2019047124A1/zh
Priority to AU2017430814A priority patent/AU2017430814A1/en
Priority to US16/641,990 priority patent/US11206105B2/en
Publication of WO2019047124A1 publication Critical patent/WO2019047124A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • 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
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • 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
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the embodiments of the present application relate to the field of communications, and, more particularly, to a method and a terminal device for transmitting data.
  • a data transfer transmission function of a certain bearer can be dynamically activated or de-activated.
  • multiple network devices may respectively indicate to the terminal device that the copy data function of one of the terminals is activated or deactivated. This may result in different states of the duplicate data functions of different network devices for the same bearer indication. Therefore, there is a need for a method for controlling the replication data transmission function of a certain bearer in the above scenario.
  • the embodiments of the present application provide a method and a terminal device for transmitting data, which are beneficial to improving performance of data transmission.
  • a first aspect provides a method for transmitting data, the method comprising: acquiring, by a terminal device, transmission control information of each network device in the at least one network device, where the transmission control information of each network device is used to indicate a corresponding network
  • the device is in a state of a duplicate data transmission function configured by the first data radio bearer DRB, and the state is an active state or an inactive state;
  • the terminal device updates the control variable according to the transmission control information of each network device, and the control variable is used for Maintaining a state of a duplicate data transmission function configured by the plurality of network devices for the first DRB, the multiple network devices including the at least one network device; and controlling, by the terminal device, the replication data of the first DRB according to the updated control variable Transfer function.
  • the active state of the duplicate data transmission function means that the PDCP entity corresponding to a certain DRB can copy one PDCP PDU into two copies and transmit them on two RLC entities respectively.
  • the inactive state of the duplicate data transmission function that is, the copy data transmission function is not used, that is, the PDCP PDU transmitted by the PDCP entity corresponding to an RB is not a duplicate data, and may be in one Transfer once in the RLC entity.
  • the terminal device controls the copy data transmission function of the first DRB according to the updated control variable, including: the terminal device according to the updated control variable and the first mapping relationship table, Determining a target state of the copy data transmission function of the first DRB, where the first mapping relationship table includes a mapping relationship between the plurality of state combinations and the plurality of target states, each state of the state combination being one by one with the plurality of network devices Corresponding to; the terminal device controls the copy data transmission function of the first DRB according to the target state.
  • the method further includes: receiving, by the terminal device, the first mapping relationship table sent by the first network device of the multiple network devices.
  • the first mapping relationship table is carried in the radio resource control RRC signaling.
  • the transmission control information of the first network device in the at least one network device indicates, by using a first bit in the bitmap, the duplicate data transmission function configured by the first network device for the first DRB a state in which the terminal device acquires transmission control information of each network device in the at least one network device, including: the terminal device receives the bitmap sent by the first network device; the terminal device in the bitmap and the first The value of the first bit corresponding to the DRB is determined as the transmission control information of the first network device.
  • one bit in the bitmap can represent the state of a bearer's duplicate data transmission function, or two bits of the bitmap can represent the state of a bearer's replicated data transmission function.
  • the terminal device controls the copy data transmission function of the first DRB according to the target state, including: if the target state is an active state, the terminal device controls the first DRB to transmit the replication data; If the target state is inactive, the terminal device controls the first DRB to transmit non-replicated data.
  • the transmission control information is carried in the medium access control MAC signaling.
  • the multiple network devices include network devices in the primary cell group and network devices in the secondary cell group.
  • 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 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 computer storage medium for storing computer software instructions for performing the method of any of the above first aspect or any of the possible implementations of the first aspect, comprising program of.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the first aspect or the optional implementation of the first aspect.
  • 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 a duplicate data transmission mode in a dual connectivity scenario.
  • FIG. 3 shows a schematic block diagram of a method for transmitting data in an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a terminal device for transmitting data according to an embodiment of the present application.
  • FIG. 5 is another schematic block diagram of a terminal device for transmitting data according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • Time Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 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 may be a device for communicating with the 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 the WCDMA system.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • the LTE system may 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 device may be a relay station.
  • the embodiment of the present application is not limited, and the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or the network device in the future evolved PLMN network.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the network device around the terminal device 130 in FIG. 1 includes a primary network device 110 and at least one secondary network device 120.
  • the at least one secondary network device 120 is respectively connected to the primary network device 110 to form a multi-connection, and is respectively connected to the terminal device 130 to provide services thereto.
  • the primary network device 110 can be an LTE network
  • the secondary network Device 120 can be an NR network.
  • the primary network device 110 may be an NR network
  • the secondary network device 120 may be an LTE network.
  • both the primary network device 110 and the secondary network device 120 are NR networks.
  • the application scenario of the technical solution is not limited in this application.
  • the terminal device 130 can establish a connection through the primary network device 110 and the secondary network device 120 at the same time.
  • the connection established between the terminal device 130 and the primary network device 110 is a primary connection
  • the connection established between the terminal device 130 and the secondary network device 120 is a secondary connection.
  • the control signaling of the terminal device 130 can be transmitted through the primary connection
  • the data of the terminal device can be transmitted simultaneously through the primary connection and the secondary connection, or can be transmitted only through the secondary connection.
  • the primary network device may be, for example, a macro base station (Macrocell), and the secondary network device may be, for example, a microcell base station (Microcell), a picocell base station (Picocell), or a femtocell base station (Femtocell), but the present invention The embodiment is not limited to this.
  • the primary network device may be an LTE network device, and the secondary network device is an NR network device. It should be understood that the embodiment of the present invention is not limited thereto, and the primary network device may also be a GSM network device, a CDMA network device, or the like.
  • the auxiliary network device may also be a GSM network device, a CDMA network device, or the like, which is not limited in this embodiment of the present invention.
  • the Packet Data Convergence Protocol can support the data replication function, that is, the PDCP replication data function is used, so that the copied data corresponds to two or more bearers, and finally guaranteed.
  • the duplicated multiple PDCP Protocol Data Units (PDUs) can be transmitted on different physical layer aggregate carriers to achieve frequency diversity gain to improve data transmission reliability.
  • the copy data transmission method adopts a protocol structure using a split bearer.
  • the PDCP is located in a cell group (Cell Group, CG), which is an anchor CG.
  • the CG includes a primary cell group and a secondary cell group, and the PDCP copies the PDCP PDUs into the same.
  • Two copies for example, one is a PDCP PDU, one is a Duplicated PDCP PDU, and two PDCPs are subjected to Radio Link Control (RLC), Media Access Control (MAC), and Media Access Control (MAC) of different CGs.
  • RLC Radio Link Control
  • MAC Media Access Control
  • MAC Media Access Control
  • the PDCP layer After the air interface reaches the terminal (downlink) or the corresponding MAC of the base station (uplink), the RLC layer, and finally aggregates to the PDCP, the PDCP layer detects that the two PDCPs are the same duplicate version, that is, discards one of them and delivers the other to the upper layer.
  • the one bearer that connects the two RLCs and the MACs respectively under the PDCP is called a split bearer.
  • a MAC-control element (Control Element, CE) can be used to dynamically activate or de-activate a data transfer of a bearer. Transfer function.
  • the network device of the primary cell group and the network device of the secondary cell group may respectively send a MAC CE to activate or deactivate the replication data function of one of the split bearers of the terminal. This may cause the network devices of the different primary cell groups and the network devices of the secondary cell group to indicate different states for the copy data function of one of the split bearers of the terminal. For example, the network device of the primary cell group indicates that the replication of the split bearer is activated.
  • the data function, and the network device of the secondary cell group instructs to activate the copy data function of the split bearer. Therefore, how the terminal device controls the copy data function of the split bearer in combination with the configuration of the copy data function of the same split bearer by the plurality of network devices is a problem to be solved.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 3 shows a schematic block diagram of a method 200 for transmitting data in an embodiment of the present application. As shown in FIG. 3, the method 200 includes the following parts or all of the contents:
  • the terminal device acquires transmission control information of each network device in the at least one network device, where the transmission control information of each network device is used to indicate a state of the duplicate data transmission function configured by the corresponding network device for the first data radio bearer DRB, This state is either active or inactive.
  • the terminal device updates, according to the transmission control information of each network device, a control variable, where the control variable is used to maintain a state of a duplicate data transmission function configured by the multiple network devices for the first DRB, where the multiple network devices include The at least one network device.
  • the terminal device controls the copy data transmission function of the first DRB according to the updated control variable.
  • the terminal device can maintain a control variable for each split bearer configured with a copy data transmission function.
  • the control variable can save all network devices capable of activating or deactivating a split bearer of the terminal device for the split bearer configuration.
  • the terminal device can update the control every time the terminal device receives the information sent by one or more network devices for indicating the status of the copy data transmission function of a certain split bearer.
  • the variable device the terminal device can directly control the copy data transmission function of the split bearer according to the updated control variable and some rules agreed in advance.
  • the terminal device can directly activate the copy data transmission function of the split bearer1.
  • the method for transmitting data in the embodiment of the present application controls the replication data transmission function of the bearer by controlling variables for a certain bearer maintenance of the terminal device, thereby improving performance of data transmission.
  • the active state of the duplicate data transmission function means that a PDCP entity corresponding to a Data Radio Bearer (DRB) can copy one PDCP PDU into two copies and transmit them on two RLC entities.
  • the inactive state of the duplicate data transmission function that is, the copy data transmission function is not used, that is, the PDCP PDU transmitted by the PDCP entity corresponding to a certain DRB is not a duplicate data, and can be transmitted once in one RLC entity.
  • the terminal device may maintain a control variable for each split bearer configured with a duplicate data transmission function, that is, if the terminal device has four split bearers configured with a copy data transmission function, the terminal device may be
  • the four split bearers respectively maintain one control variable, that is, four control variables.
  • the embodiment of the present application describes the technical solution from the perspective of a split bearer, but the embodiment of the present application is not limited thereto.
  • the dual connectivity mentioned in the embodiment of the present application may also be a multi-connection. Although the full text is described by taking a dual connection as an example, the embodiment of the present application does not limit this.
  • the terminal device may receive the indication information sent by the primary network device and the secondary network device at a certain time, where the indication information takes one bit as an example, and at a certain time, the terminal device receives the information sent by the primary network device.
  • the secondary network device sends 0, where 1 can indicate that the replicated data transmission function configured for a split bearer is active, and 0 can indicate that the replicated data transmission function configured for the corresponding split bearer is inactive, then
  • the terminal device can directly update the control variable to 10
  • the terminal device can directly control the duplicate data transmission function of the corresponding bearer according to 10.
  • the terminal device may also receive the indication information sent by the primary network device and the secondary network device at different times, and the terminal device may receive the indication information sent by the network device,
  • the copy data transmission function of the corresponding split bearer is not changed until the terminal device receives the indication information sent by another network device, and the control variable is updated together, and the copy data transmission function of the corresponding split bearer is controlled according to the updated control variable.
  • the terminal device may also update the control variable after receiving the indication information sent by the network device, and directly control the copy data transmission function of the corresponding split bearer according to the updated control variable, wherein the control variable may have An initial value, for example, the initial value of the control variable can be 00.
  • the terminal device controls the copy data transmission function of the first DRB according to the updated control variable, including: the terminal device according to the updated control variable and the first mapping relationship a table, determining a target state of the copy data transmission function of the first DRB, where the first mapping relationship table includes a mapping relationship between the plurality of state combinations and the plurality of target states, each state of the state combination and the plurality of network devices One-to-one correspondence; the terminal device controls the copy data transmission function of the first DRB according to the target state.
  • the terminal device may save, in advance, a mapping relationship table for each split bearer configured with the duplicate data transmission function, where the mapping relationship table may include all network devices capable of activating or deactivating the corresponding split bearer, which may be corresponding to the split bearer.
  • the various state combinations of the copy data transfer function configuration and the various state combinations should be placed in the target state of the corresponding split bearer's copy data transfer function.
  • the control variable after the terminal device is updated is also a combination of states.
  • the terminal device can find the corresponding mapping relationship table according to the updated control variable, and can find the corresponding target state, and then directly control the corresponding split bearer according to the target state.
  • Copy data transfer function Taking one bit as a representative of the state of a network device's copy data transmission function for a split bearer, the mapping table for a split bearer may be Table 1:
  • the copy data transmission function of the corresponding split bearer can be controlled to be inactive. If the updated control variable is 01, 10 or 11, the copy of the corresponding split bearer can be controlled.
  • the data transfer function is active. Initialization of control variables The value can be 00.
  • the mapping relationship table may be configured by the network device.
  • the network device may configure the mapping relationship table to the terminal device by using a Radio Resource Control (RRC). That is to say, the network device can modify the target state corresponding to each combination through RRC.
  • RRC Radio Resource Control
  • the above table includes all combinations of states.
  • the above table may also include partial state combinations.
  • the primary network device and the secondary network device negotiate a certain network device to directly control the replication data transmission of a certain split bearer.
  • the primary network device and the secondary network device may negotiate that the primary network device controls the duplicate data transmission function of the DRB 1, and the status indication of the duplicate data transmission function for the DRB1 sent by the primary network device to the terminal device may be turned on or The shutdown, that is, may be 0 or 1, and the status indication of the duplicate data transmission function for the DRB1 sent by the secondary network device to the terminal device can only be off, for example, only 0.
  • the above mapping table configured by the network device for DRB1 is only possible as shown in Table 2.
  • the updated control variable may only be 00, 01 or 00, 10.
  • the transmission control information of the first network device in the at least one network device indicates the replication data configured by the first network device for the first DRB by using a first bit in the bitmap.
  • the terminal device acquiring the transmission control information of each of the at least one network device, the method comprising: the terminal device receiving the bitmap sent by the first network device; the terminal device The value of the first bit corresponding to the first DRB is determined as the transmission control information of the first network device.
  • the current NR discussion has agreed to indicate to the terminal device that the terminal device has a DRB that replicates the data transmission function by a bitmap bitmap, and the bitmap is 1 byte.
  • the locations in different bitmaps correspond to different bearer identifiers (identifications, IDs) of the terminals.
  • the bearers indicated by these bearer IDs are bearers configured with the copy data transmission function.
  • the bearer ID of the terminal is 0, 2, 3, 7, 8, 10
  • the first bit of the bitmap terminal corresponds to bearer ID 0
  • the second bit corresponds to bearer ID 2
  • the third bit corresponds to bearer ID 3
  • the fourth bit corresponds to bearer ID 7
  • the five digits correspond to the bearer ID 8
  • the sixth digit corresponds to the bearer ID 10
  • the seventh digit and the eighth digit are invalid bits.
  • the corresponding relationship may be an ascending correspondence or a descending correspondence.
  • the MAC of the terminal device may indicate the corresponding bit in the bitmap to the PDCP of the corresponding DRB. Specifically, the terminal device can find the corresponding bit position of the DRB ID in the bitmap according to the correspondence between the bitmap and the DRB ID. For example, the network device has the DRB ID with the duplicate data transmission function as 1, 3, 4, and 7 respectively corresponding to the bitmap. 1, 2, 3, 4 places.
  • the MAC of the terminal device may indicate the value of the first bit to the PDCP with the DRB ID being 1, the value of the second bit to the PDCP with the DRB ID being 3, and so on.
  • the terminal device controls the copy data transmission function of the first DRB according to the target state, including: if the target state is an active state, the terminal device controls the The first DRB transmits the copy data; if the target state is the inactive state, the terminal device controls the first DRB to transmit the non-replicated data.
  • the terminal device determines that the target state for a certain DRB is an active state according to the above Table 1, that is, the terminal device needs to use the DRB function to receive the copy data or send the copy data. If the terminal device determines that the target state for a certain DRB is inactive according to Table 1 above, that is, the terminal device needs to use the DRB to receive non-replicated data or send non-replicated data.
  • the transmission control information is carried in the medium access control MAC signaling.
  • the bitmap can be sent to the terminal device through MAC layer signaling, and a bit of the bitmap indicates the status of the copy data transmission function of a certain bearer.
  • indication information or configuration information of the embodiments of the present application may also pass other signalings than the above mentioned MAC layer signaling and RRC signaling, such as Download Control Information (DCI), etc. .
  • DCI Download Control Information
  • the foregoing multiple network devices are described by using a network device of a primary cell group and a network device of a secondary cell group as an example.
  • the embodiment of the present application is not limited thereto.
  • the multiple network devices may be A network device of a primary cell group and a network device of a plurality of secondary cell groups.
  • one bit in the above bitmap represents the state of a bearer's copy data transmission function.
  • the embodiment of the present application should not be limited. For example, two bits may also be used to represent the state of a bearer copy data transmission function.
  • 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. 4 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the acquiring unit 310 is configured to acquire transmission control information of each network device in the at least one network device, where the transmission control information of each network device is used to indicate that the corresponding network device is configured to replicate data transmission functions configured by the first data radio bearer DRB State, which is either active or inactive;
  • the updating unit 320 is configured to update, according to the transmission control information of each network device, a control variable, where the control variable is used to maintain a state of a duplicate data transmission function configured by the multiple network devices for the first DRB, the multiple network devices Including the at least one network device;
  • the control unit 330 is configured to control the copy data transmission function of the first DRB according to the updated control variable.
  • the terminal device in the embodiment of the present application controls the replica data transmission function of the bearer by controlling the bearer of a certain bearer maintenance of the terminal device, thereby improving performance of data transmission.
  • control unit is specifically configured to: determine, according to the updated control variable and the first mapping relationship table, a target state of the copy data transmission function of the first DRB, the first mapping The relationship table includes a mapping relationship between the plurality of state combinations and the plurality of target states, each of the state combinations being in one-to-one correspondence with the plurality of network devices; and according to the target state, controlling the copy data transmission function of the first DRB.
  • the terminal device further includes: a receiving unit, configured to receive The first mapping relationship table sent by the first network device of the plurality of network devices.
  • the first mapping relationship table is carried in the radio resource control RRC signaling.
  • the transmission control information of the first network device in the at least one network device indicates the replication data configured by the first network device for the first DRB by using a first bit in the bitmap.
  • the acquiring unit is configured to: receive the bitmap sent by the first network device; determine, in the bitmap, the value of the first bit corresponding to the first DRB as the first network device Transmission control information.
  • control unit is specifically configured to: if the target state is an active state, control the first DRB to transmit the replicated data; if the target state is an inactive state, control the first DRB transmission. Non-replicated data.
  • the transmission control information is carried in the medium access control MAC signaling.
  • terminal device 300 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 the terminal in the method of FIG.
  • the corresponding process of the device is not described here for brevity.
  • the embodiment of the present application further provides a terminal device 400, which may be the terminal device 300 in FIG. 4, which can be used to execute the content of the terminal device corresponding to the method 100 in FIG. .
  • the terminal device 400 includes an input interface 410, an output interface 420, a processor 430, and a memory 440.
  • the input interface 410, the output interface 420, the processor 430, and the memory 440 can be connected by a bus system.
  • the memory 440 is for storing programs, instructions or code.
  • the processor 430 is configured to execute a program, an instruction or a code in the memory 440 to control the input interface 410 to receive a signal, control the output interface 420 to send a signal, and complete the operations in the foregoing method embodiments.
  • the terminal device in the embodiment of the present application controls the replica data transmission function of the bearer by controlling the bearer of a certain bearer maintenance of the terminal device, thereby improving performance of data transmission.
  • the processor 430 may be a central processing unit (CPU), and the processor 430 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 440 can include read only memory and random access memory and provides instructions and data to the processor 430. A portion of the memory 440 may also include a non-volatile random access memory. For example, the memory 440 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 430 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 440, and the processor 430 reads the information in the memory 440 and combines its hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the acquiring unit, the updating unit, and the control unit in the terminal device 300 may be implemented by the processor 420 in FIG. 5, and the receiving unit of the terminal device 300 may be implemented by the input interface 410 in 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, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. You can choose some of them according to actual needs or All units are used to achieve the objectives of the embodiment of the present 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 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. .

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Abstract

本申请实施例公开了一种用于传输数据的方法和终端设备，该方法包括：终端设备获取至少一个网络设备中每个网络设备的传输控制信息，该每个网络设备的传输控制信息用于指示相应网络设备为第一数据无线承载DRB配置的复制数据传输功能的状态，该状态为激活状态或非激活状态；该终端设备根据该每个网络设备的传输控制信息，更新控制变量，该控制变量用于维护多个网络设备为该第一DRB配置的复制数据传输功能的状态，该多个网络设备包括该至少一个网络设备；该终端设备根据更新后的该控制变量，控制该第一DRB的复制数据传输功能。本申请实施例的方法和终端设备，有利于提高数据传输的性能。

Description

用于传输数据的方法和终端设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种用于传输数据的方法和终端设备。
背景技术
在新无线(New Radio，NR)现有的讨论中，对于配置了复制数据传输功能的无线承载，可以动态的激活(activate)或者去激活(de-activate)某一个承载的数据复制传输功能。对于多连接的情况，多个网络设备可以分别向终端设备指示激活或者去激活终端某一个承载的复制数据功能。这就有可能导致不同网络设备针对同一个承载指示的复制数据功能的状态不同，因此亟待需要一种方法在上述场景下来控制某个承载的复制数据传输功能。
发明内容
有鉴于此，本申请实施例提供了一种用于传输数据的方法和终端设备，有利于提高数据传输的性能。
第一方面，提供了一种用于传输数据的方法，该方法包括：终端设备获取至少一个网络设备中每个网络设备的传输控制信息，该每个网络设备的传输控制信息用于指示相应网络设备为第一数据无线承载DRB配置的复制数据传输功能的状态，该状态为激活状态或非激活状态；该终端设备根据该每个网络设备的传输控制信息，更新控制变量，该控制变量用于维护多个网络设备为该第一DRB配置的复制数据传输功能的状态，该多个网络设备包括该至少一个网络设备；该终端设备根据更新后的该控制变量，控制该第一DRB的复制数据传输功能。
通过为终端设备配置了复制数据传输功能的某一承载维护一个控制变量来控制该承载的复制数据传输功能，有利于提高数据传输的性能。
所谓复制数据传输功能的激活状态，是指与某个DRB对应的PDCP实体可以将一个PDCP PDU复制成两份，分别在两个RLC实体上进行传输。而复制数据传输功能的非激活状态，也就是不使用复制数据传输功能，即与某个RB对应的PDCP实体传输的PDCP PDU不是复制数据，可以在一个 RLC实体中传输一次。
在一种可能的实现方式中，该终端设备根据更新后的该控制变量，控制该第一DRB的复制数据传输功能，包括：该终端设备根据更新后的该控制变量和第一映射关系表，确定该第一DRB的复制数据传输功能的目标状态，该第一映射关系表包括多个状态组合与多个目标状态的映射关系，该状态组合中的每个状态与该多个网络设备一一对应；该终端设备根据该目标状态，控制该第一DRB的复制数据传输功能。
在一种可能的实现方式中，该方法还包括：该终端设备接收该多个网络设备中的第一网络设备发送的该第一映射关系表。
在一种可能的实现方式中，该第一映射关系表承载于无线资源控制RRC信令中。
在一种可能的实现方式中，该至少一个网络设备中的第一网络设备的传输控制信息通过比特图中的第一比特位指示该第一网络设备为该第一DRB配置的复制数据传输功能的状态，该终端设备获取至少一个网络设备中每个网络设备的传输控制信息，包括：该终端设备接收该第一网络设备发送的该比特图；该终端设备将该比特图中与该第一DRB对应的该第一比特位的值确定为该第一网络设备的传输控制信息。
也就是说，可以用比特图中一个比特位代表一个承载的复制数据传输功能的状态，也可以用比特图两个比特位代表一个承载的复制数据传输功能的状态。
在一种可能的实现方式中，该终端设备根据该目标状态，控制该第一DRB的复制数据传输功能，包括：若该目标状态为激活状态，该终端设备控制该第一DRB传输复制数据；若该目标状态为非激活状态，该终端设备控制该第一DRB传输非复制数据。
在一种可能的实现方式中，该传输控制信息承载于媒体接入控制MAC信令中。
在一种可能的实现方式中，该多个网络设备包括主小区组内的网络设备和辅小区组内的网络设备。
第二方面，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。
第三方面，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。
第四方面，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所用的计算机软件指令，其包含用于执行上述各方面所设计的程序。
第五方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选的实现方式中的方法。
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示出了双连接场景下的复制数据传输方式的协议架构图。
图3示出了本申请实施例的用于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用于传输数据的终端设备的示意性框图。
图5示出了本申请实施例的用于传输数据的终端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)、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、新无线(New Radio，NR)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是本申请实施例的一个应用场景的示意图。图1中的终端设备130周围的网络设备包括主网络设备110和至少一个辅网络设备120。该至少一个辅网络设备120分别与主网络设备110相连，构成多连接，并分别与终端设备130连接为其提供服务。该主网络设备110可以为LTE网络，该辅网络 设备120可以为NR网络。或者该主网络设备110可以为NR网络，该辅网络设备120可以为LTE网络。或者该主网络设备110和该辅网络设备120都为NR网络。本申请对技术方案的应用场景不作限定。终端设备130可以通过主网络设备110和辅网络设备120同时建立连接。终端设备130和主网络设备110建立的连接为主连接，终端设备130与辅网络设备120建立的连接为辅连接。终端设备130的控制信令可以通过主连接进行传输，而终端设备的数据可以通过主连接和辅连接同时传输，也可以只通过辅连接进行传输。
在本申请实施例中，主网络设备例如可以是宏基站(Macrocell)，辅网络设备例如可以为微蜂窝基站(Microcell)、微微蜂窝基站(Picocell)、毫微微蜂窝基站(Femtocell)，但本发明实施例不限于此。
更具体地，该主网络设备可以为LTE网络设备，该辅网络设备为NR网络设备，应理解，本发明实施例并不限于此，该主网络设备还可以为GSM网络设备，CDMA网络设备等，该辅网络设备也可以为GSM网络设备，CDMA网络设备等，本发明实施例对此不作限制。
在载波聚合场景下，分组数据汇聚层协议(Packet Data Convergence Protocol，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承载，并最终保证复制的多个相同PDCP协议数据单元(Protocol Data Unit，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简单介绍在双连接场景下的复制数据传输方式的协议架构。复制数据传输方式采用采用的是分裂承载(split bearer)的协议架构。对于上下行来讲，PDCP位于某一个小区组(Cell Group，CG)，该CG即为锚小区组(anchor CG)，其中CG包括主小区组和辅小区组，PDCP将PDCP PDU复制为相同的两份，比如一个是PDCP PDU，一个是复制(Duplicated)PDCP PDU，两个PDCP经过不同CG的无线链路控制(Radio Link Control，RLC)，媒体接入控制(Media Access Control，MAC)，再经过空口到达终端(下行)或者基站(上行)相应的MAC，RLC层，最后再汇聚到PDCP，PDCP层监测到两个PDCP为相同的复制版本，即丢弃其中一个，将另外一个递交到高层。将PDCP下面分别连接两个RLC和MAC的这一个承载称为split bearer。
在NR现有的讨论中，对于配置了复制数据传输功能的无线承载，可以通过MAC控制元素(Control Element，CE)动态的激活(activate)或者去激活(de-activate)某一个承载的数据复制传输功能。对于双连接的场景，主小区组的网络设备和辅小区组的网络设备可以分别发送MAC CE来激活或者去激活终端某一个split bearer的复制数据功能。这就可能导致不同主小区组的网络设备和辅小区组的网络设备针对终端的某一个split bearer的复制数据功能指示了不同的状态，例如，主小区组的网络设备指示激活该split bearer的复制数据功能，而辅小区组的网络设备指示去激活该split bearer的复制数据功能。因此，终端设备如何结合多个网络设备针对同一split bearer的复制数据功能的配置来控制该split bearer的复制数据功能是需要解决的问题。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
图3示出了本申请实施例的用于传输数据的方法200的示意性框图。如图3所示，该方法200包括以下部分内容或全部内容：
S210，终端设备获取至少一个网络设备中每个网络设备的传输控制信息，该每个网络设备的传输控制信息用于指示相应网络设备为第一数据无线承载DRB配置的复制数据传输功能的状态，该状态为激活状态或非激活状态。
S220，该终端设备根据该每个网络设备的传输控制信息，更新控制变量，该控制变量用于维护多个网络设备为该第一DRB配置的复制数据传输功能的状态，该多个网络设备包括该至少一个网络设备。
S230，该终端设备根据更新后的该控制变量，控制该第一DRB的复制数据传输功能。
具体地，终端设备可以给每一个配置了复制数据传输功能的split bearer维护一个控制变量，例如，该控制变量可以保存所有能够激活或去激活终端设备某个split bearer的网络设备针对该split bearer配置的复制数据传输功能的最新状态。当终端设备每接收到一个或多个网络设备发送的用于指示某一个split bearer的复制数据传输功能的状态的信息，终端设备就可以更新该控 制变量，终端设备可以直接根据更新后的控制变量以及提前约定好的一些规则，控制该split bearer的复制数据传输功能。例如，假如所有能够激活或去激活split bearer1的网络设备为2个，包括网络设备1和网络设备2，如果更新后的控制变量为1个网络设备配置的是激活状态，1个网络设备配置的非激活状态，那么终端设备可以直接将该split bearer1的复制数据传输功能激活。
因此，本申请实施例的用于传输数据的方法，通过为终端设备某一承载维护的控制变量来控制该承载的复制数据传输功能，有利于提高数据传输的性能。
所谓复制数据传输功能的激活状态，是指与某个数据无线承载(Data Radio Bearer，DRB)对应的PDCP实体可以将一个PDCP PDU复制成两份，分别在两个RLC实体上进行传输。而复制数据传输功能的非激活状态，也就是不使用复制数据传输功能，即与某个DRB对应的PDCP实体传输的PDCP PDU不是复制数据，可以在一个RLC实体中传输一次。
在本申请实施例中，终端设备可以为每一个配置有复制数据传输功能的split bearer维护一个控制变量，也就是说，假如终端设备有4个split bearer配置有复制数据传输功能，终端设备可以为该4个split bearer分别维护一个控制变量，也即4个控制变量。本申请实施例是以一个split bearer的角度描述技术方案的，但本申请实施例不限于此。
本领域技术人员理解，本申请实施例中提及的双连接也可以是多连接，虽然全文多处是以双连接为例进行描述的，但本申请实施例对此不构成限定。
可选地，终端设备可能在某一时刻同时收到主网络设备和辅网络设备分别发送的指示信息，该指示信息以一个比特位为例，在某个时刻终端设备收到主网络设备发送的为1，辅网络设备发送的为0，其中1可以表示为某一split bearer配置的复制数据传输功能为激活态，而0可以表示为相应split bearer配置的复制数据传输功能为非激活态，那么终端设备可以直接将控制变量更新为10，终端设备可以直接根据10来控制相应承载的复制数据传输功能。
可选地，终端设备也可以在不同时刻收到主网络设备和辅网络设备发别发送的指示信息，终端设备可以在收到一个网络设备发送的指示信息后，先 对相应split bearer的复制数据传输功能不作改变，一直到终端设备收到另一个网路设备发送的指示信息后，一起更新控制变量，并根据更新的控制变量来控制相应split bearer的复制数据传输功能。
可选地，终端设备也可以在收到一个网络设备发送的指示信息后就更新控制变量，并根据更新后的控制变量直接来控制相应split bearer的复制数据传输功能，其中，该控制变量可以有个初始值，例如，该控制变量的初始值可以为00。
可选地，在本申请实施例中，该终端设备根据更新后的该控制变量，控制该第一DRB的复制数据传输功能，包括：该终端设备根据更新后的该控制变量和第一映射关系表，确定该第一DRB的复制数据传输功能的目标状态，该第一映射关系表包括多个状态组合与多个目标状态的映射关系，该状态组合中的每个状态与该多个网络设备一一对应；该终端设备根据该目标状态，控制该第一DRB的复制数据传输功能。
具体地，终端设备可以提前针对每一个配置有复制数据传输功能的split bearer保存一种映射关系表，该映射关系表可以包括能够激活或去激活相应split bearer的所有网络设备可能将相应split bearer的复制数据传输功能配置的各种状态组合以及各种状态组合下应该将相应split bearer的复制数据传输功能置于何种目标状态。终端设备更新后的控制变量也即一种状态组合，终端设备可以根据更新后的控制变量查找相应的映射关系表，就可以查找出对应的目标状态，进而就可以根据目标状态直接控制相应split bearer的复制数据传输功能。以一个比特位代表一个网络设备对一个split bearer的复制数据传输功能的状态为例，针对某一split bearer的映射关系表可以是表1：
表1
主网络设备 辅网络设备 目标状态
0 0 非激活
0 1 激活
1 0 激活
1 1 激活
也就是说，如果更新后的控制变量为00，则可以控制相应split bearer的复制数据传输功能为非激活态，如果更新后的控制变量为01、10或11，则可以控制相应split bearer的复制数据传输功能为激活态。控制变量的初始 值可以是00。
应理解，上述表格只是一个例子，也可以是其他形式，例如，可以将01和10对应的目标状态修改为非激活态。并且该映射关系表可以由网络设备配置，例如，网络设备可以通过无线资源控制(Radio Resource Control，RRC)向终端设备配置该映射关系表。也就是说，网络设备可以通过RRC修改每个组合对应的目标状态。
还应理解，上述表格包括了所有的状态组合，上述表格也可以包括部分状态组合，例如，主网络设备和辅网络设备如果协商好有某一个网络设备来直接控制某一个split bearer的复制数据传输功能。例如，主网络设备和辅网络设备可以协商好由主网络设备来控制DRB 1的复制数据传输功能，那么主网络设备向终端设备发送的针对该DRB1的复制数据传输功能的状态指示可以是开启或者关闭，也即可以是0或者是1，而辅网络设备向终端设备发送的针对该DRB1的复制数据传输功能的状态指示只能是关闭，例如只能是0。那么网络设备为DRB1配置的上述映射关系表则只可能如表2所示。
表2
主网络设备 辅网络设备 目标状态
0 0 非激活
0 1 激活
1 0 激活
并且针对DRB1，因为主网络设备和辅网络设备已经协商好了有效的网络设备，那么更新后的控制变量只可能是00，01或00，10。
可选地，在本申请实施例中，该至少一个网络设备中的第一网络设备的传输控制信息通过比特图中的第一比特位指示该第一网络设备为该第一DRB配置的复制数据传输功能的状态，该终端设备获取至少一个网络设备中每个网络设备的传输控制信息，包括：该终端设备接收该第一网络设备发送的该比特图；该终端设备将该比特图中与该第一DRB对应的该第一比特位的值确定为该第一网络设备的传输控制信息。
现在的NR讨论已经同意通过一个比特图bitmap来指示终端设备具有复制数据传输功能的DRB，且该bitmap为1字节(byte)。不同的bitmap中的位置分别对应终端不同bearer标识(identify，ID)，这些bearer ID标示的bearer是配置了复制数据传输功能的bearer。比如终端的bearer ID为0，2，3，7，8，10 为具有复制数据传输功能的bearer，一种对应关系为bitmap终端的第一位对应bearer ID 0，第二位对应bearer ID 2，第三位对应bearer ID 3，第四位对应bearer ID 7，第五位对应bearer ID 8，第六位对应bearer ID 10，第7位和第8为为无效位。这种对应关系可以为升序对应关系，也可以为降序对应关系。
终端设备的MAC在接收到某个网络设备发送的bitmap之后，可以把bitmap中相应bit位指示给对应DRB的PDCP。具体地，终端设备可以根据bitmap与DRB ID的对应关系，找到DRB ID在bitmap中的对应bit位，比如网络设备将具有复制数据传输功能的DRB ID为1，3，4，7分别对应bitmap中的1，2，3，4位。则终端设备的MAC在收到bitmap之后，可以将把第一位的值指示给DRB ID为1的PDCP，把第二位的值指示给DRB ID为3的PDCP，以此类推。
可选地，在本申请实施例中，所述终端设备根据所述目标状态，控制所述第一DRB的复制数据传输功能，包括：若所述目标状态为激活状态，所述终端设备控制所述第一DRB传输复制数据；若所述目标状态为非激活状态，所述终端设备控制所述第一DRB传输非复制数据。
具体地，终端设备如果根据上述表1确定出来针对某一DRB的目标状态为激活态，也就是说终端设备需要使用该DRB功能接收复制数据或者发送复制数据。终端设备如果根据上述表1确定出来针对某一DRB的目标状态为非激活态，也就是说终端设备需要使用该DRB接收非复制数据或发送非复制数据。
可选地，在本申请实施例中，所述传输控制信息承载于媒体接入控制MAC信令中。
上述也提及到，可以通过MAC层信令向终端设备发送bitmap，并且bitmap的某一位指示某个承载的复制数据传输功能的状态。
应理解，本申请实施例的各种指示信息或者配置信息也可以通过除上述提及的MAC层信令和RRC信令之外的其他信令，例如下行控制信息(Download Control Information，DCI)等。
还应理解，上述多个网络设备是以一个主小区组的网络设备和一个辅小区组的网络设备为例进行描述的，本申请实施例应不限于此，例如，该多个网络设备可以是一个主小区组的网络设备和多个辅小区组的网络设备。
还应理解，上述bitmap中一个比特位代表一个承载的复制数据传输功能的状态，本申请实施例应该不受限制，例如也可以用两个比特位代表一个承载的复制数据传输功能的状态。
应理解，网络设备描述的网络设备与终端设备之间的交互及相关特性、功能等与终端设备的相关特性、功能相应。并且相关内容在上述方法200中已经作了详尽描述，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。
上文中详细描述了根据本申请实施例的用于传输数据的方法，下面将结合图4和图5，描述根据本申请实施例的用于传输数据的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图4示出了本申请实施例的终端设备300的示意性框图。如图4所示，该终端设备300包括：
获取单元310，用于获取至少一个网络设备中每个网络设备的传输控制信息，该每个网络设备的传输控制信息用于指示相应网络设备为第一数据无线承载DRB配置的复制数据传输功能的状态，该状态为激活状态或非激活状态；
更新单元320，用于根据该每个网络设备的传输控制信息，更新控制变量，该控制变量用于维护多个网络设备为该第一DRB配置的复制数据传输功能的状态，该多个网络设备包括该至少一个网络设备；
控制单元330，用于根据更新后的该控制变量，控制该第一DRB的复制数据传输功能。
因此，本申请实施例的终端设备，通过为终端设备某一承载维护的控制变量来控制该承载的复制数据传输功能，有利于提高数据传输的性能。
可选地，在本申请实施例中，该控制单元具体用于：根据更新后的该控制变量和第一映射关系表，确定该第一DRB的复制数据传输功能的目标状态，该第一映射关系表包括多个状态组合与多个目标状态的映射关系，该状态组合中的每个状态与该多个网络设备一一对应；根据该目标状态，控制该第一DRB的复制数据传输功能。
可选地，在本申请实施例中，该终端设备还包括：接收单元，用于接收 该多个网络设备中的第一网络设备发送的该第一映射关系表。
可选地，在本申请实施例中，该第一映射关系表承载于无线资源控制RRC信令中。
可选地，在本申请实施例中，该至少一个网络设备中的第一网络设备的传输控制信息通过比特图中的第一比特位指示该第一网络设备为该第一DRB配置的复制数据传输功能的状态，该获取单元具体用于：接收该第一网络设备发送的该比特图；将该比特图中与该第一DRB对应的该第一比特位的值确定为该第一网络设备的传输控制信息。
可选地，在本申请实施例中，该控制单元具体用于：若该目标状态为激活状态，控制该第一DRB传输复制数据；若该目标状态为非激活状态，控制该第一DRB传输非复制数据。
可选地，在本申请实施例中，该传输控制信息承载于媒体接入控制MAC信令中。
应理解，根据本申请实施例的终端设备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。
如图5所示，本申请实施例还提供了一种终端设备400，该终端设备400可以是图4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400包括：输入接口410、输出接口420、处理器430以及存储器440，该输入接口410、输出接口420、处理器430和存储器440可以通过总线系统相连。该存储器440用于存储包括程序、指令或代码。该处理器430，用于执行该存储器440中的程序、指令或代码，以控制输入接口410接收信号、控制输出接口420发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的终端设备，通过为终端设备某一承载维护的控制变量来控制该承载的复制数据传输功能，有利于提高数据传输的性能。
应理解，在本申请实施例中，该处理器430可以是中央处理单元(Central Processing Unit，CPU)，该处理器430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440可以包括只读存储器和随机存取存储器，并向处理器430提供指令和数据。存储器440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440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430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440，处理器430读取存储器440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中的获取单元、更新单元和控制单元可以由图5中的处理器420实现，终端设备300的接收单元可以由图5中的输入接口410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 (15)

  1. 一种用于传输数据的方法，其特征在于，包括：
    终端设备获取至少一个网络设备中每个网络设备的传输控制信息，所述每个网络设备的传输控制信息用于指示相应网络设备为第一数据无线承载DRB配置的复制数据传输功能的状态，所述状态为激活状态或非激活状态；
    所述终端设备根据所述每个网络设备的传输控制信息，更新控制变量，所述控制变量用于维护多个网络设备为所述第一DRB配置的复制数据传输功能的状态，所述多个网络设备包括所述至少一个网络设备；
    所述终端设备根据更新后的所述控制变量，控制所述第一DRB的复制数据传输功能。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据更新后的所述控制变量，控制所述第一DRB的复制数据传输功能，包括：
    所述终端设备根据更新后的所述控制变量和第一映射关系表，确定所述第一DRB的复制数据传输功能的目标状态，所述第一映射关系表包括多个状态组合与多个目标状态的映射关系，所述状态组合中的每个状态与所述多个网络设备一一对应；
    所述终端设备根据所述目标状态，控制所述第一DRB的复制数据传输功能。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收所述多个网络设备中的第一网络设备发送的所述第一映射关系表。
  4. 根据权利要求3所述的方法，其特征在于，所述第一映射关系表承载于无线资源控制RRC信令中。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述至少一个网络设备中的第一网络设备的传输控制信息通过比特图中的第一比特位指示所述第一网络设备为所述第一DRB配置的复制数据传输功能的状态，所述终端设备获取至少一个网络设备中每个网络设备的传输控制信息，包括：
    所述终端设备接收所述第一网络设备发送的所述比特图；
    所述终端设备将所述比特图中与所述第一DRB对应的所述第一比特位的值确定为所述第一网络设备的传输控制信息。
  6. 根据权利要求2至4中任一项所述的方法，其特征在于，所述终端设备根据所述目标状态，控制所述第一DRB的复制数据传输功能，包括：
    若所述目标状态为激活状态，所述终端设备控制所述第一DRB传输复制数据；
    若所述目标状态为非激活状态，所述终端设备控制所述第一DRB传输非复制数据。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述传输控制信息承载于媒体接入控制MAC信令中。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述多个网络设备包括主小区组内的网络设备和辅小区组内的网络设备。
  9. 一种终端设备，其特征在于，所述终端设备包括：
    获取单元，用于获取至少一个网络设备中每个网络设备的传输控制信息，所述每个网络设备的传输控制信息用于指示相应网络设备为第一数据无线承载DRB配置的复制数据传输功能的状态，所述状态为激活状态或非激活状态；
    更新单元，用于根据所述每个网络设备的传输控制信息，更新控制变量，所述控制变量用于维护多个网络设备为所述第一DRB配置的复制数据传输功能的状态，所述多个网络设备包括所述至少一个网络设备；
    控制单元，用于根据更新后的所述控制变量，控制所述第一DRB的复制数据传输功能。
  10. 根据权利要求9所述的终端设备，其特征在于，所述控制单元具体用于：
    根据更新后的所述控制变量和第一映射关系表，确定所述第一DRB的复制数据传输功能的目标状态，所述第一映射关系表包括多个状态组合与多个目标状态的映射关系，所述状态组合中的每个状态与所述多个网络设备一一对应；
    根据所述目标状态，控制所述第一DRB的复制数据传输功能。
  11. 根据权利要求10所述的终端设备，其特征在于，所述终端设备还包括：
    接收单元，用于接收所述多个网络设备中的第一网络设备发送的所述第一映射关系表。
  12. 根据权利要求11所述的终端设备，其特征在于，所述第一映射关系表承载于无线资源控制RRC信令中。
  13. 根据权利要求9至12中任一项所述的终端设备，其特征在于，所述至少一个网络设备中的第一网络设备的传输控制信息通过比特图中的第一比特位指示所述第一网络设备为所述第一DRB配置的复制数据传输功能的状态，所述获取单元具体用于：
    接收所述第一网络设备发送的所述比特图；
    将所述比特图中与所述第一DRB对应的所述第一比特位的值确定为所述第一网络设备的传输控制信息。
  14. 根据权利要求10至12中任一项所述的终端设备，其特征在于，所述控制单元具体用于：
    若所述目标状态为激活状态，控制所述第一DRB传输复制数据；
    若所述目标状态为非激活状态，控制所述第一DRB传输非复制数据。
  15. 根据权利要求9至14中任一项所述的终端设备，其特征在于，所述传输控制信息承载于媒体接入控制MAC信令中。
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