WO2020061966A1 - 数据传输的方法和装置 - Google Patents

数据传输的方法和装置 Download PDF

Info

Publication number
WO2020061966A1
WO2020061966A1 PCT/CN2018/108148 CN2018108148W WO2020061966A1 WO 2020061966 A1 WO2020061966 A1 WO 2020061966A1 CN 2018108148 W CN2018108148 W CN 2018108148W WO 2020061966 A1 WO2020061966 A1 WO 2020061966A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
cell
terminal device
status report
uplink
Prior art date
Application number
PCT/CN2018/108148
Other languages
English (en)
French (fr)
Inventor
唐珣
王宏
张戬
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2018/108148 priority Critical patent/WO2020061966A1/zh
Publication of WO2020061966A1 publication Critical patent/WO2020061966A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength

Definitions

  • the present application relates to the field of communications, and more specifically, to a method and apparatus for data transmission in the field of communications.
  • a handover of a serving cell of the UE occurs according to a change in signal strength between the UE and a base station.
  • the UE receives the handover command sent by the source base station, it disconnects the radio resource control (RRC) connection with the source cell, and then starts a random access process for the target cell.
  • RRC radio resource control
  • a make-before-break (MBB) technology is proposed, that is, the UE does not immediately interrupt the UE and the source cell after receiving the handover command from the source cell. Instead, the connection between the UE and the source cell is maintained until the first uplink transmission time of the UE for the target cell. That is, after receiving the handover command, the UE still maintains communication with the source cell, and does not interrupt communication with the source cell until the UE sends a random access preamble to the target cell.
  • the connection between the UE and the source cell will not be interrupted. In this way, there will be a period of time during the handover, and the UE maintains a connection with the source cell and the target cell at the same time, and can also perform data transmission at the same time. Therefore, in a scenario where the UE maintains data transmission with the source cell and the target cell at the same time, how to avoid uplink co-channel interference is an urgent problem. In addition, when the UE can only send data to one cell at any time, how to support the Simultaneous connection of individual cells is also an urgent problem.
  • This application provides a data transmission method and device, which can avoid uplink co-frequency interference in a scenario where a terminal device maintains data transmission with a source cell and a target cell at the same time.
  • a data transmission method is provided.
  • the method is performed by a terminal device, and the terminal device is connected to a source network device and a target network device at the same time during the handover of the terminal device from a source cell to a target cell.
  • the method includes :
  • the terminal device receives first information, and the first information is used to instruct the terminal device to send uplink data to a first network device, where the first network device is the target network device or the source network device.
  • the terminal device when the terminal device is connected to the source network device and the target network device at the same time, the terminal device may only send uplink data to one of the source network device or the target network device, that is, the embodiment of the application Only one uplink channel is reserved in the uplink to transmit uplink data of two network devices, so as to avoid the same frequency interference when the terminal device performs uplink data transmission with the source cell and the target cell at the same time.
  • the terminal device when the terminal device can only send uplink data to one cell, it can support simultaneous connection with two cells.
  • the uplink data includes uplink user data and / or uplink control information.
  • the target network device may send the first information to the terminal device, and instruct the terminal device to send uplink data to the target network device.
  • the source network device may send the first information to the terminal device, and instruct the terminal device to send uplink data to the source network device.
  • the first information includes a first uplink resource indication and a second uplink resource indication configured by the first network device, wherein the first uplink resource Indicates a control channel resource used to indicate uplink control information of a transmission source cell, and the second uplink resource indicates a control channel resource used to indicate uplink control information of a transmission target cell.
  • control channel resource is, for example, a PUCCH resource, which is not specifically limited in this embodiment of the present application.
  • the terminal device can transmit the uplink control information of the source cell to the first network device through the control channel resource indicated by the first uplink resource indication, and transmit the uplink control information of the target cell through the control channel resource indicated by the second uplink resource indication. To the first network device.
  • the control channel resource includes a resource index number.
  • the terminal device may calculate the control channel resource according to the resource index number.
  • the first information is used to instruct the terminal device to transmit uplink control information of the source cell and the target cell along the way through an uplink data channel resource.
  • Uplink control information is used to instruct the terminal device to transmit uplink control information of the source cell and the target cell along the way through an uplink data channel resource.
  • the uplink data channel resource may be, for example, a PUSCH resource.
  • the uplink data channel resource can be used to transmit the uplink control information of the source cell and the target cell's uplink control information, that is, the uplink data channel resource spike transmission source is used.
  • the uplink control information of the cell and the uplink control information of the target cell is used.
  • the uplink control information includes at least one of an acknowledged ACK / unacknowledged NACK and channel state information CSI.
  • a data transmission method includes:
  • the first network device sends first information to a terminal device, where the first information is used to instruct the terminal device to send uplink data to the first network device, where the terminal device is handed over from a source cell to a target cell While connecting to a source network device and a target network device, the first network device is one of the target network device or the source network device;
  • the terminal device when the terminal device is connected to the source network device and the target network device at the same time, the terminal device may only send uplink data to one of the source network device or the target network device, that is, the embodiment of the application Only one uplink channel is reserved in the uplink to transmit uplink data of two network devices, so as to avoid the same frequency interference when the terminal device performs uplink data transmission with the source cell and the target cell at the same time.
  • the terminal device when the terminal device can only send uplink data to one cell, it can support simultaneous connection with two cells.
  • the first information includes a first uplink resource indication and a second uplink resource indication configured by the first network device, wherein the first uplink resource Indicates a control channel resource used to indicate uplink control information of a transmission source cell, and the second uplink resource indicates a control channel resource used to indicate uplink control information of a transmission target cell.
  • control channel resource includes a resource index number.
  • the first information is used to instruct the terminal device to transmit uplink control information of the source cell and the target cell along the way through an uplink data channel resource.
  • Uplink control information is used to instruct the terminal device to transmit uplink control information of the source cell and the target cell along the way through an uplink data channel resource.
  • the uplink control information includes at least one of an acknowledged ACK / unacknowledged NACK and channel state information CSI.
  • a data transmission method is provided. The method is executed by a terminal device, and the terminal device is connected to a source network device and a target network device at the same time during the process of switching the terminal device from a source cell to a target cell.
  • a first status report for downlink data of a first cell where the first cell is one of the source cell or the target cell;
  • the terminal device sends the first status report to a second network device, wherein the second network device is the source network device and the first cell is the target cell, or the second network device Is the target network device and the first cell is the source cell.
  • the sending, by the terminal device, the first status report to a second network device includes:
  • the terminal device sends a dedicated RRC message to the second network device, where the dedicated RRC message includes the first status report.
  • the RRC message may further include indication information, and the indication information is used to indicate that the status report is an RLC status report or a PDCP status report.
  • the RRC message may further include indication information, and the indication information is used to indicate that the status report is a status report of the source cell or the target cell.
  • the first status report includes a first indication, and the first indication is used to indicate that the first status report is a status report of the first cell .
  • the terminal device may send a second status report for the downlink data of the second cell to the second network device, and send the second status report to the second network device in the same manner and / or message structure as the second status report.
  • First status report may be sent.
  • the second status report may also include a second indication, and the second indication is used to indicate that the second status report is a status report of the second cell.
  • the second status report may be the same as in the prior art, that is, it does not need to include a second indication.
  • the second network device may determine which status report is the status report of the first network device and which status report is the status report of the second network device according to the first instruction or the second instruction. .
  • the terminal device may send a third status report to the second network device, where the third status report includes a first status report and a second status report.
  • the first status report includes an RLC status report or a PDCP status report.
  • a method for transmitting data includes:
  • the second network device receives the first status report for the downlink data of the first cell from the terminal device, wherein the terminal device is connected to the source network device and the target network device at the same time during the handover of the terminal device from the source cell to the target cell.
  • the second network device is the source network device and the first cell is the target cell, or the second network device is the target network device and the first cell is the source cell.
  • the terminal device when the terminal device is connected to the source cell and the target cell at the same time, the terminal device may send a status report for the downlink data of the first cell to the second network device, and the second network device may send the status report Forwarding to the first network device to assist the first network device in downlink retransmission, wherein the second network device is one of the source network device or the target network device, and the first network device is the other.
  • the embodiment of the present application can avoid co-frequency interference when the terminal device performs uplink data transmission with the source cell and the target cell at the same time.
  • the terminal device can only send uplink data to one cell, it can support simultaneous connection with two cells.
  • the receiving, by the second network device from the terminal device, a first status report for downlink data of the first cell includes:
  • the first status report includes a first indication, and the first indication is used to indicate that the first status report is a status report of the first cell .
  • the first status report includes an RLC status report or a PDCP status report.
  • a communication apparatus for performing any one of the foregoing aspects or a method in any possible implementation manner of any aspect.
  • the communication apparatus includes a unit for performing any one of the foregoing aspects or a method in any possible implementation manner of any aspect.
  • a communication device includes a processor and a transceiver.
  • the device may further include a memory and a bus system.
  • the transceiver, the memory, and the processor are connected through the bus system.
  • the memory is used to store instructions.
  • the processor is used to execute instructions, such as executing instructions stored in the memory, to control the transceiver to receive and / or send signals. And when the processor executes an instruction, such as an instruction stored in the memory, the execution causes the processor or the communication device to execute a method in any one of the foregoing aspects or any possible implementation manner of any aspect.
  • a computer-readable medium for storing a computer program, the computer program including instructions for performing a method in any possible implementation manner of any of the foregoing aspects.
  • a computer program product includes computer program code, and when the computer program code is used by a communication unit, a processing unit, or a transceiver of a communication device (such as a terminal device or a network device) When the processor is running, the communication device is caused to execute the method in any possible implementation manner of any of the foregoing aspects.
  • a chip is provided.
  • the chip is applicable to a communication device, and the chip includes at least one processor.
  • the chip or the communication device executes any of the foregoing aspects.
  • the chip may further include a memory, and the memory may be used to store related instructions.
  • a communication system includes the foregoing source network device and target network device.
  • FIG. 1 shows a schematic scenario diagram of a cell switching method applicable to an embodiment of the present application.
  • FIG. 2 shows a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 3 shows a schematic flowchart of another method for transmitting data according to an embodiment of the present application.
  • FIG. 4 shows a schematic diagram of a PDCP status report.
  • FIG. 5 is a schematic diagram of a PDCP status report according to an embodiment of the present application.
  • FIG. 6 shows a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 shows a schematic block diagram of another communication device according to an embodiment of the present application.
  • FIG. 8 shows a schematic block diagram of another communication device according to an embodiment of the present application.
  • FIG. 9 shows a schematic block diagram of a terminal device according to an embodiment of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Global Interoperability for Microwave Access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or public land mobile network (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • PLMN public land mobile network
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a Global System for Mobile Communication (GSM) system or a Code Division Multiple Access (CDMA) system.
  • the base station (Base Transceiver Station (BTS)) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • the base station can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, and future
  • CRAN cloud radio access network
  • the network equipment in the 5G network or the network equipment in the future evolved PLMN network is not limited in the embodiments of the present application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • This application layer contains applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application.
  • the communication may be performed by using the method described above.
  • the method execution subject provided in the embodiments of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media used to store information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.
  • each eNB there may be multiple cells under each eNB, and the technical solution in the embodiment of the present application may be applicable to the eNB and the UE in each cell.
  • TRP transmission and reception points
  • the technical solution in the embodiment of the present application may be applied to each gNB or TRP.
  • CU central unit
  • DU distributed unit
  • the technical solution in the embodiment of the present application may be applied to each CU or DU. It should be noted that the difference between the CU-DU separation scenario and the multiple TRP scenario is that the TRP is only a radio frequency unit or an antenna device, and the DU can implement the protocol stack function, for example, the DU can implement the physical layer function.
  • the source network device is a network device to which a serving cell where the terminal device is currently located belongs
  • the target network device is a network device to which the target device is to be handed over.
  • the current serving cell is the source cell.
  • the connection between the terminal device and the source network device will not be interrupted. In this way, there will be a period of time during the switching process.
  • the terminal device maintains a connection with the source network device and the target network device at the same time, and the terminal device can perform data transmission with the source network device and the target network device at the same time.
  • the terminal device For uplink data transmission, the terminal device needs to send uplink data separately, where the uplink data includes uplink user data and / or uplink control information, where the uplink control information includes a positive response (acknowledge, ACK) / negative-acknowledge (NACK) feedback, channel status information (channel status information (CSI), etc.) of the source cell and the target cell.
  • the CSI information is, for example, RI, PMI, CQI, and the like, which is not limited in the embodiment of the present application.
  • the terminal device can simultaneously receive downlink data sent by the source network device and downlink data sent by the target cell.
  • the terminal device needs to feed back the CSI of the source cell to the network device, so that the network device can perform downlink data scheduling of the source cell according to the CSI.
  • the terminal device receives the downlink data sent by the source cell, it needs to feed back to the network device the hybrid automatic retransmission request (HARQ) ACK / NACK information of the downlink data of the source cell.
  • HARQ hybrid automatic retransmission request
  • the terminal device needs to feedback the target cell CSI to the network device, so that the network device can perform downlink data scheduling of the target cell according to the CSI.
  • the terminal device receives the downlink data of the target cell, it needs to send HARQ ACK / NACK information to the network device for the downlink data of the target cell.
  • interference when the source cell and the target cell are on the same frequency cell, in order to prevent the terminal device from simultaneously transmitting uplink data with the source cell and the target cell to generate co-frequency interference, interference can be avoided by retaining only one uplink channel.
  • This method is also applicable to terminal equipment with only single uplink capability. Specifically, when the terminal device communicates with the source network device and the target network device at the same time, it can send uplink data to only one of the source network device or the target network device, thereby avoiding uplink co-channel interference.
  • FIG. 2 is a schematic diagram of a data transmission method according to an embodiment of the present application.
  • the terminal device is connected to the source network device and the target network device at the same time during the process of switching from the source cell to the target cell.
  • the execution body is described as a terminal device and a first network device, where the first network device is a source network device or a target network device.
  • the terminal device may also be replaced with a chip of the terminal device, which is not specifically limited in this embodiment of the present application.
  • FIG. 2 illustrates steps or operations of the data transmission method, but these steps or operations are merely examples, and the embodiments of the present application may also perform other operations or a modification of each operation in FIG. 2.
  • each step in FIG. 2 may be performed in a different order than that presented in FIG. 2, and it is possible that not all operations in FIG. 2 are to be performed.
  • the first network device sends first information to the terminal device, and the first information is used to instruct the terminal device to send uplink data to the first network device.
  • the terminal device receives the first information from the first network device.
  • the uplink data includes uplink user data and / or uplink control information
  • the uplink control information includes at least one of HARQ ACK / NACK and channel state information CSI.
  • the uplink data refer to the foregoing description. To avoid repetition, details are not described herein again.
  • the target network device may send the first information to the terminal device, and instruct the terminal device to send uplink data to the target network device.
  • the target network device may include the first information in a container (container) for handover confirmation, that is, a handover command, and send it to the source network device, and the source network device forwards the handover command to the terminal device.
  • the target network device may separately send the first information to the terminal device, or the target network device may include the first information in an existing message (for example, an RRC connection reconfiguration message) and send it to the terminal device. This embodiment of the present application does not limit this.
  • the source network device may send the first information to the terminal device, and instruct the terminal device to send uplink data to the source network device.
  • the source network device may send the first information to the target network device in the handover request, and then the target network device includes the first message in the container of the handover confirmation, that is, the handover command is sent to the source.
  • the network device forwards the handover command to the terminal device.
  • the source network device sends the first information to the terminal device separately, or the source network device sends the first information to the terminal device by including the first information in an existing message (such as an RRC connection reconfiguration message).
  • an existing message such as an RRC connection reconfiguration message
  • the terminal device may send the uplink user data to only one of the source network device or the target network device without sending to the other network device.
  • the uplink user data When a terminal device receives downlink data of two network devices at the same time, the terminal device needs to feed back the uplink control information of the source cell and the uplink control information of the target cell to the source network device or one of the target network devices.
  • the uplink control information For example HARQ ACK / NACK and CSI information.
  • the HARQ information is used to indicate whether the downlink data is successfully received, and the CSI information is used to feedback the downlink channel information, which provides reference information for network equipment to perform downlink scheduling.
  • the first information may include a first uplink resource indication and a second uplink resource indication configured by the first network device, where the first uplink resource indication is used to indicate an uplink of a transmission source cell.
  • a control channel resource for control information, and a second uplink resource indicates a control channel resource for indicating uplink control information of a transmission target cell.
  • the control channel resource is, for example, a physical uplink control channel (PUCCH) resource, which is not specifically limited in this embodiment of the present application.
  • PUCCH physical uplink control channel
  • the first network device configures two sets of control channel resources for the terminal device, for example, two sets of PUCCH dedicated resources, one of which is used to transmit uplink control information of the source cell, and the other is used to transmit uplink control of the target cell. information.
  • the control channel resource includes a resource index number.
  • the PUCCH dedicated resource includes a PUCCH resource index number.
  • the PUCCH dedicated resource further includes a PUCCH format.
  • the PUCCH format may be implicitly reflected in the resource index number.
  • the first information is used to instruct the terminal device to transmit uplink control information of the source cell and uplink control information of the target cell along an uplink data channel resource.
  • the uplink data channel resource may be, for example, a physical uplink shared channel (physical uplink shared channel, PUSCH) resource.
  • the first network device may not send the first information to the terminal device, but the protocol specifies that the terminal device sends uplink data to the first network device, which is not limited in the embodiment of the present application.
  • the terminal device sends uplink data to the first network device.
  • the first network device receives uplink data sent by the terminal device.
  • the terminal device may indicate the uplink control information of the source cell through the first uplink resource indication.
  • the control channel resources of the target network are transmitted to the first network device, and the uplink control information of the target cell is transmitted to the first network device through the control channel resources indicated by the second uplink resource indication.
  • the terminal device may calculate the control channel resource according to the resource index number.
  • the terminal device may transmit the uplink data channel resource through the uplink data channel.
  • uplink control information of the source cell and uplink control information of the target cell can be transmitted using the uplink data channel resource, that is, uplink control information of the source cell and uplink control information of the target cell are transmitted using the uplink data channel resource spike channel .
  • the source network device when the source network device receives uplink data sent by the terminal device, and the uplink data includes uplink control information of the source cell and uplink control information of the target cell, the source network device forwards the uplink control information of the target cell to Target network device.
  • the target network device receives uplink data sent by the terminal device, and the uplink data includes uplink control information of the source cell and uplink control information of the target cell, the target network device sends the uplink control information of the source cell to the source network device.
  • a backhual can be used for data transmission between the source network device and the target network device.
  • the terminal device when the terminal device is connected to the source network device and the target network device at the same time, the terminal device may only send uplink data to one of the source network device or the target network device, that is, the embodiment of the application Only one uplink channel is reserved in the uplink to transmit uplink data of two network devices, so as to avoid the same frequency interference when the terminal device performs uplink data transmission with the source cell and the target cell at the same time.
  • the terminal device when the terminal device can only send uplink data to one cell, it can support simultaneous connection with two cells.
  • the terminal device when there is no ideal backhaul condition between the source network device and the target network device, the terminal device can feed back the packet data convergence protocol (PDCP) to the source network device or the target network device.
  • PDCP packet data convergence protocol
  • RLC radio link layer control protocol
  • the PDCP status report is usually used for data retransmission during the handover process.
  • the terminal device or network device can send a PDCP status report to the other party to indicate the PDCP SN number that was successfully transmitted and the PDCP SN number that was unsuccessful to assist the other party in retransmission.
  • the RLC status report is a radio link control (RLC) sequence number (SN) number that the receiver indicates to the sender when the automatic repeat-request (ARQ) function is activated at the RCL layer.
  • RLC radio link control
  • SN radio link control sequence number
  • ARQ automatic repeat-request
  • FIG. 3 is a schematic diagram of a data transmission method according to an embodiment of the present application.
  • the terminal device is connected to the source network device and the target network device at the same time during the process of switching from the source cell to the target cell.
  • the execution body is described as a terminal device and a first network device, where the first network device is one of a source network device or a target network device.
  • the terminal device may also be replaced with a chip of the terminal device, which is not specifically limited in this embodiment of the present application.
  • the terminal device determines a first status report for downlink data of a first cell, where the first cell is one of a source cell or a target cell.
  • the first status report includes an RLC status report or a PDCP status report.
  • RLC status report and the PDCP status report refer to the description above. To avoid repetition, details are not described herein again.
  • the terminal device when the terminal device only maintains uplink transmission with the target network device, for the downlink data sent by the target network device to the terminal device, the terminal device can perform ACK / NACK to the target network device through the uplink with the target network device. Report feedback and CSI information. In addition, optionally, the terminal device may also perform the RLC or PDCP level status report feedback to the target network device. At this time, the terminal device may determine the RLC status report or PDCP status report for the target cell. For the downlink data sent by the source network device to the terminal device, the terminal device can perform feedback on the status report at the RLC or PDCP level. Here, the terminal device may perform ACK / NACK feedback and / or CSI information reporting, or may not perform ACK / NACK feedback and / or CSI information reporting, which is not limited in this embodiment of the present application.
  • the terminal device sends the first status report to a second network device.
  • the second network device receives the first status report and forwards the first status report to the first network device.
  • the second network device is a source network device, the first network device is a target network device, the first cell is a target cell, and the second cell is a source cell.
  • the second network device is a target network device, the first network device is a source network device, the first cell is a source cell, and the second cell is a target cell. That is, when the first cell is the target cell and the second cell is the source cell, the first network device is the target network device and the second network device is the source network device.
  • the first network device is a source network device and the second network device is a target network device.
  • the terminal device determines the RLC status report or PDCP status report for the downlink data of the source cell in 310
  • the terminal device sends the RLC status report or PDCP status report for the downlink data of the source cell to the target network device.
  • the target network device sends the RLC status report or PDCP status report for the downlink data of the source cell to the source network device.
  • the terminal device sends the status report of the first cell by using the uplink resource of the second network device.
  • the terminal device may send a dedicated RRC message to the second network device, where the dedicated RRC message includes the first status report.
  • the terminal device can encapsulate the status report as a new RRC message, or encapsulate the status report in an existing RRC message.
  • the RRC message may further include indication information, and the indication information is used to indicate that the status report is an RLC status report or a PDCP status report.
  • the RRC message may further include indication information, and the indication information is used to indicate that the status report is a status report of the source cell or the target cell.
  • the terminal device may send a second status report for the downlink data of the second cell to the second network device, and use the same manner and / or message structure as the second status report to send to the second network.
  • the device sends the first status report, wherein the first status report includes a first indication, and the first indication is used to indicate that the first status report is a status report of the first cell.
  • the first indication may also have other names, for example, it may be referred to as a cell indication field, which is not specifically limited in the embodiment of the present application.
  • the second status report may also include a second indication, and the second indication is used to indicate that the second status report is a status report of the second cell.
  • the second status report may be the same as in the prior art, that is, it does not need to include a second indication.
  • the second network device may determine which status report is the status report of the first network device and which status report is the status report of the second network device according to the first instruction or the second instruction. .
  • the terminal device may newly add a cell indication field to an existing status report, or use a reserved field (R field) in the existing status report as a cell indication field, and the cell indication field is used to indicate a status report.
  • the terminal device may send a status report for the downlink data of the second cell and a status report for the downlink data of the first cell to the second network device, respectively, where the status report for the downlink data of the second cell is sent here. It may have the same structure as the status report of the downlink data for the second cell that the terminal device sends to the second network device in the prior art, and the status report of the downlink data for the first cell may include the above-mentioned cell indication field.
  • FIG. 4 shows a schematic diagram of a PDCP status report.
  • D / C occupies one bit, which indicates that the protocol data unit (PDU) corresponding to the PDCP status report is a control PDU or a data PDU;
  • FMS First Missing PDCP SN
  • FMS cont.
  • the PDCP status report further includes bitmaps 1 to N, which respectively indicate whether subsequent PDCP PDUs are correctly received.
  • the SN number is 15 bits (bits), and there is a 5 bit R field.
  • the terminal device when the terminal device sends the PDCP status report of the downlink data of the source cell to the target network device, for the PDCP status report of the downlink data of the source cell,
  • One bit or multiple bits can be used as the cell indicator field.
  • the first 1 bit in the 5 bit R field can be used to indicate that the PDCP status report is the PDCP status report of the downlink data of the source cell.
  • the 5-bit R domain is still a reserved domain.
  • the terminal device may send a third status report to the second network device, where the third status report includes a first status report and a second status report.
  • the third status report may include two PDCP status reports shown in FIG. 4, one of which is a first status report, and the other of which is a second status report.
  • at least one R field in the 5-bit R field of the first status report is used as a cell indicator field, and is used to indicate that the first status report is a status report for downlink data of the first cell.
  • At least one R domain in the 5-bit R domain of the second status report is used as a cell indication domain, and is used to indicate that the second status report is a status report for downlink data of the second cell.
  • a 2-bit R field is used as an indication field in the third status report, and is used to indicate whether the first status report and the second status report exist.
  • the terminal device when the terminal device is connected to the source cell and the target cell at the same time, the terminal device may send a status report for the downlink data of the first cell to the second network device, and the second network device may send the status report Forwarding to the first network device to assist the first network device in downlink retransmission, wherein the second network device is one of the source network device or the target network device, and the first network device is the other.
  • the embodiment of the present application can avoid co-frequency interference when the terminal device performs uplink data transmission with the source cell and the target cell at the same time.
  • the terminal device can only send uplink data to one cell, it can support simultaneous connection with two cells.
  • FIG. 2 and FIG. 3 mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between different devices.
  • a device for implementing the solution provided by the embodiment of the present application will be described below with reference to FIGS. 6 to 9.
  • the source network device, the target network device, and the terminal device include a hardware structure and / or a software module corresponding to each function.
  • the embodiments of this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application of the technical solution and design constraints. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the technical solutions of the embodiments of the present application.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated.
  • a processing unit may be implemented in the form of hardware or in the form of software functional unit. It should be noted that the division of the units in the embodiments of the present application is schematic, and is only a logical function division. There may be another division manner in actual implementation.
  • FIG. 6 shows a possible exemplary block diagram of a communication device involved in the embodiment of the present application.
  • the device 600 may exist in the form of software, hardware, or a combination of software and hardware. .
  • FIG. 6 shows a possible schematic block diagram of a device involved in an embodiment of the present application.
  • the apparatus 600 includes a processing unit 602 and a communication unit 603.
  • the processing unit 602 is configured to control and manage the operation of the device.
  • the communication unit 603 is configured to support communication between the device and other devices.
  • the device may further include a storage unit 601 for storing program code and data of the device.
  • the apparatus 600 shown in FIG. 6 may be a source network device and a target network network device involved in the embodiments of the present application.
  • the processing unit 602 can support the apparatus 600 to perform the actions performed by the source network device in the foregoing method examples.
  • the processing unit 602 supports the device 600 to perform actions such as generating the first information in 210 in FIG. 2 and processing the uplink data received in 220.
  • the processing unit 602 supports the device 600 performs actions such as the first status report received by process 320 in FIG. 3, and / or other processes for the techniques described herein.
  • the communication unit 603 can support communication between the device 600 and the target network device, terminal device, etc. For example, when the first network device in FIG.
  • the communication unit 603 supports the device 600 to perform step 210 in FIG. 2, 220.
  • the communication unit 603 supports the device 600 to perform step 320 in FIG. 3 and / or other related communication processes.
  • the action of the target network device is the same as or similar to that of the source network device described in the previous paragraph, and for the sake of brevity, it will not be repeated here.
  • the processing unit 602 may be a processor or a controller.
  • the processing unit 602 may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (application).
  • the processor may also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 603 may be a communication interface, which is a collective name. In a specific implementation, the communication interface may include one or more interfaces.
  • the storage unit 601 may be a memory.
  • the processing unit 602 is a processor
  • the communication unit 603 is a communication interface
  • the storage unit 601 is a memory
  • the device 600 involved in the embodiment of the present application may be the communication device 700 shown in FIG. 7.
  • the apparatus 700 includes a processor 702 and a communication interface 703. Further, the apparatus 700 may further include a memory 701. Optionally, the apparatus 700 may further include a bus 704. Among them, the communication interface 703, the processor 702, and the memory 701 can be connected to each other through a bus 704; the bus 704 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) Bus, etc.
  • the bus 704 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.
  • the processor 702 may execute various functions of the device 700 by running or executing a program stored in the memory 701.
  • the communication apparatus 700 shown in FIG. 7 may be a source network device and a target network device involved in the embodiment of the present application.
  • the processor 702 can execute the actions performed by the source network device in the foregoing method examples by running or executing a program stored in the memory 701.
  • the processor 702 may execute the actions performed by the target network device in the foregoing method examples by running or executing a program stored in the memory 701.
  • FIG. 8 shows a possible exemplary block diagram of another device involved in the embodiment of the present application.
  • the device 800 may exist in the form of software, hardware, or a combination of software and hardware. .
  • FIG. 8 shows a possible schematic block diagram of a device involved in an embodiment of the present application.
  • the apparatus 800 includes a processing unit 802 and a communication unit 803.
  • the processing unit 802 is configured to control and manage the operation of the device.
  • the communication unit 803 is configured to support communication between the device and other devices.
  • the device may further include a storage unit 801 for storing program code and data of the device.
  • the communication device 800 shown in FIG. 8 may be a terminal device or a chip applied to the terminal device.
  • the processing unit 802 can support the device 800 to perform the actions performed by the terminal device in the foregoing method examples.
  • the processing unit 802 supports the device 802 to perform, for example, the first information in the process 210 in FIG. 310 of 2, determining actions for the first status report, and / or other processes for the techniques described herein.
  • the communication unit 803 can support communication between the device 800 and the source network device and the target network device.
  • the communication unit 803 supports the device 800 to perform steps 210 and 220 in FIG. 2, step 320 in FIG. 3, and / or other Related communication process.
  • the processing unit 802 may be a processor or a controller, for example, it may be a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, units, and circuits described in connection with the present disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 803 may be a communication interface. The communication interfaces are collectively referred to. In a specific implementation, the communication interface may include one or more interfaces.
  • the storage unit 801 may be a memory.
  • the apparatus 800 involved in this embodiment of the present application may be a terminal device as shown in FIG. 9.
  • FIG. 9 shows a simplified schematic diagram of a possible design structure of a terminal device involved in an embodiment of the present application.
  • the terminal device 900 includes a transmitter 901, a receiver 902, and a processor 903.
  • the processor 903 may also be a controller, which is shown as "controller / processor 903" in FIG. 9.
  • the terminal device 900 may further include a modem processor 905.
  • the modem processor 905 may include an encoder 906, a modulator 907, a decoder 908, and a demodulator 909.
  • the transmitter 901 conditions (e.g., analog conversion, filtering, amplification, upconversion, etc.) the output samples and generates an uplink signal, which is transmitted to the base station described in the above embodiment via an antenna .
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • the receiver 902 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 906 receives service data and signaling messages to be transmitted on the uplink, and processes (e.g., formats, encodes, and interleaves) the service data and signaling messages.
  • the modulator 907 further processes (e.g., symbol maps and modulates) the encoded service data and signaling messages and provides output samples.
  • a demodulator 909 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 908 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages sent to the terminal device 1100.
  • the encoder 906, the modulator 907, the demodulator 909, and the decoder 908 may be implemented by a synthesized modem processor 905. These units process according to the radio access technology (such as LTE, 5G, and other evolved system access technologies) adopted by the radio access network. It should be noted that when the terminal device 900 does not include the modem processor 905, the above functions of the modem processor 905 may also be performed by the processor 903.
  • the processor 903 controls and manages the actions of the terminal device 900, and is configured to execute the processing procedure performed by the terminal device 900 in the foregoing embodiment of the present application.
  • the processor 903 is further configured to execute a processing process involving a terminal device in the method shown in FIG. 3 and / or other processes of the technical solution described in this application.
  • the terminal device 900 may further include a memory 904, and the memory 904 is configured to store program codes and data for the terminal device 900.
  • the steps of the method or algorithm described in connection with the disclosure of the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), and erasable programmable read-only memory (erasable (programmable ROM, EPROM), electrically erasable programmable read-only memory (EPROM), registers, hard disks, mobile hard disks, read-only optical disks (CD-ROMs), or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may reside in an ASIC.
  • the ASIC may be located in a control plane entity of the centralized unit, a user plane entity of the centralized unit, a terminal device, or a unified data storage network element.
  • the processor and the storage medium may also exist as discrete components in a control plane entity of the centralized unit, a user plane entity of the centralized unit, a terminal device, or a unified data storage network element.
  • An embodiment of the present application further provides a computer-readable storage medium including a computer program, and when the computer program is run on a computer, the computer is caused to execute the method provided by the foregoing method embodiment.
  • An embodiment of the present application further provides a computer program product containing instructions, and when the computer program product runs on a computer, the computer is caused to execute the method provided by the foregoing method embodiment.
  • An embodiment of the present application further provides a chip applicable to a communication device.
  • the chip includes at least one processor, and when the at least one processor executes an instruction, the chip or the communication device executes the foregoing method embodiment.
  • the chip may further include a memory, and the memory may be used for storing related instructions.
  • processors mentioned in the embodiments of the present invention may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), and application-specific integrated circuits (DSPs).
  • DSPs digital signal processors
  • DSPs application-specific integrated circuits
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the size of the sequence numbers of the above processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not be implemented in this application.
  • the implementation process of the example constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

Landscapes

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

Abstract

本申请提供了一种数据传输的方法和装置。本申请实施例中，当终端设备同时与源网络设备和目标网络设备连接时，终端设备可以只向源网络设备或目标网络设备中的其中一个网络设备发送上行数据，即本申请实施例中只保留一条上行通道的来传输两个网络设备的上行数据，避免终端设备同时与源小区和目标小区进行上行数据传输时产生同频干扰。另外，当终端设备在只能向一个小区发送上行数据时，能够支持与两个小区的同时连接。

Description

数据传输的方法和装置 技术领域
本申请涉及通信领域，并且更具体的，涉及通信领域中的数据传输的方法和装置。
背景技术
在蜂窝通信系统中，当用户设备(user equipment，UE)移动时，根据UE与基站之间的信号强度的变化情况，会发生UE的服务小区的切换。具体而言，当UE接收到源基站发送的切换命令时，会断开与源小区的无线资源控制(radio resource control，RRC)连接，随后开始进行针对目标小区的随机接入过程。当UE向目标小区发送完切换完成消息之后，UE与目标基站之间建立RRC连接。这样，导致在UE断开与源小区的RRC连接到UE与目标基站之间建立RRC连接之间的过程中，UE的数据传输是中断的。
为减少UE切换过程中的数据传输的中断时间，提出了中断延时(make-before-break，MBB)技术，即当UE收到源小区的切换命令后，并不立即中断UE与源小区之间的连接，而是将UE与源小区之间的连接继续维持到UE针对目标小区的首次上行传输时刻。也就是说，UE在收到切换命令后，仍然维持了与源小区的通信，直到UE向目标小区发送随机接入前导码时才中断与源小区之间的通信。
进一步的，增强的MBB方案中，在UE与目标小区的随机接入过程中，UE与源小区的连接也不会中断。这样在切换的过程中，会存在一段时间，UE同时与源小区和目标小区保持连接，也可以同时进行数据传输。因此，在UE同时与源小区和目标小区保持数据传输的场景下，如何避免上行同频干扰是亟需解决的问题，另外当UE在任意时刻只能向一个小区发送数据时，如何支持与两个小区的同时连接也是亟需解决的问题。
发明内容
本申请提供一种数据传输的方法和装置，在终端设备同时与源小区和目标小区保持数据传输的场景下，能够避免上行同频干扰。
第一方面，提供了一种数据传输的方法，该方法由终端设备执行，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述方法包括：
所述终端设备接收第一信息，所述第一信息用于指示所述终端设备向第一网络设备发送上行数据，所述第一网络设备为所述目标网络设备或所述源网络设备中的一个；
所述终端设备向所述第一网络设备发送上行数据。
因此，本申请实施例中，当终端设备同时与源网络设备和目标网络设备连接时，终端设备可以只向源网络设备或目标网络设备中的其中一个网络设备发送上行数据，即本申请实施例中只保留一条上行通道的来传输两个网络设备的上行数据，避免终端设备同时与源小区和目标小区进行上行数据传输时产生同频干扰。另外，当终端设备在只能向一个小区发送上行数据时，能够支持与两个小区的同时连接。
这里，上行数据包括上行用户数据和/或上行控制信息。
具体而言，当第一网络设备为目标网络设备时，目标网络设备可以向终端设备发送该第一信息，指示终端设备向目标网络设备发送上行数据。当第一网络设备为源网络设备时，源网络设备可以向终端设备发送该第一信息，指示终端设备向源网络设备发送上行数据。
结合第一方面，在第一方面的某些实现方式中，所述第一信息包括所述第一网络设备配置的第一上行资源指示和第二上行资源指示，其中，所述第一上行资源指示用于指示传输源小区的上行控制信息的控制信道资源，所述第二上行资源指示用于指示传输目标小区的上行控制信息的控制信道资源。
这里，控制信道资源例如为PUCCH资源，本申请实施例对此不作具体限定。
这样，终端设备可以将源小区的上行控制信息通过第一上行资源指示所指示的控制信道资源传输给第一网络设备，将目标小区的上行控制信息通过第二上行资源指示所指示控制信道资源传输给第一网络设备。
结合第一方面，在第一方面的某些实现方式中，所述控制信道资源包括资源索引号。当控制信道资源包括资源索引号时，终端设备可以根据该资源索引号，计算出控制信道资源。
结合第一方面，在第一方面的某些实现方式中，所述第一信息用于指示所述终端设备通过上行数据信道资源随路传输所述源小区的上行控制信息和所述目标小区的上行控制信息。
这里，上行数据信道资源例如可以为PUSCH资源。这样，终端设备可以在通过上行数据信道资源传输上行用户数据时，可以使用该上行数据信道资源传输源小区的上行控制信息和目标小区的上行控制信息，即使用该上行数据信道资源穗路传输源小区的上行控制信息和目标小区的上行控制信息。
结合第一方面，在第一方面的某些实现方式中，所述上行控制信息包括确认ACK/不确认NACK和信道状态信息CSI中的至少一种。
第二方面，提供了一种数据传输的方法，该方法包括：
第一网络设备向终端设备发送第一信息，所述第一信息用于指示所述终端设备向所述第一网络设备发送上行数据，其中，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述第一网络设备为所述目标网络设备或所述源网络设备中的一个；
所述第一网络设备从所述终端设备接收上行数据。
因此，本申请实施例中，当终端设备同时与源网络设备和目标网络设备连接时，终端设备可以只向源网络设备或目标网络设备中的其中一个网络设备发送上行数据，即本申请实施例中只保留一条上行通道的来传输两个网络设备的上行数据，避免终端设备同时与源小区和目标小区进行上行数据传输时产生同频干扰。另外，当终端设备在只能向一个小区发送上行数据时，能够支持与两个小区的同时连接。
结合第二方面，在第二方面的某些实现方式中，所述第一信息包括所述第一网络设备配置的第一上行资源指示和第二上行资源指示，其中，所述第一上行资源指示用于指示传输源小区的上行控制信息的控制信道资源，所述第二上行资源指示用于指示传输目标小区的上行控制信息的控制信道资源。
结合第二方面，在第二方面的某些实现方式中，所述控制信道资源包括资源索引号。
结合第二方面，在第二方面的某些实现方式中，所述第一信息用于指示所述终端设备通过上行数据信道资源随路传输所述源小区的上行控制信息和所述目标小区的上行控制信息。
结合第二方面，在第二方面的某些实现方式中，所述上行控制信息包括确认ACK/不确认NACK和信道状态信息CSI中的至少一种。
第三方面，提供了一种数据传输的方法，所述方法由终端设备执行，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述方法包括：
所述终端设备确定针对第一小区的下行数据的第一状态报告，其中，所述第一小区为所述源小区或所述目标小区中的一个；
所述终端设备向第二网络设备发送所述第一状态报告，其中，所述第二网络设备为所述源网络设备且所述第一小区为所述目标小区，或者所述第二网络设备为所述目标网络设备且所述第一小区为所述源小区。
结合第三方面，在第三方面的某些实现方式中，所述终端设备向第二网络设备发送所述第一状态报告，包括：
所述终端设备向所述第二网络设备发送专用RRC消息，所述专用RRC消息中包括所述第一状态报告。
可选的，该RRC消息中还可以包括指示信息，该指示信息用于指示该状态报告为RLC状态报告或PDCP状态报告。
可选的，该RRC消息中还可以包括指示信息，该指示信息用于指示该状态报告是源小区或目标小区的状态报告。
结合第三方面，在第三方面的某些实现方式中，所述第一状态报告包括第一指示，所述第一指示用于指示所述第一状态报告为所述第一小区的状态报告。
可选的，终端设备可以向第二网络设备发送针对第二小区的下行数据的第二状态报告，并采用与发送该第二状态报告相同的方式和/或消息结构向第二网络设备发送该第一状态报告。
可选的，第二状态报告也可以包括第二指示，所述第二指示用于指示所述第二状态报告为所述第二小区的状态报告。或者可选的，第二状态报告也可以与现有技术一样，即不需要包括第二指示。第二网络设备接收到第一状态报告和第二状态报告之后，可以根据第一指示或者第二指示确定哪个状态报告为第一网络设备的状态报告，哪个状态报告为第二网络设备的状态报告。
可选的，本申请实施例中，终端设备可以向第二网络设备发送第三状态报告，该第三状态报告包括第一状态报告和第二状态报告。
结合第三方面，在第三方面的某些实现方式中，所述第一状态报告包括RLC状态报告或PDCP状态报告。
第四方面，提供了一种传输数据的方法，其特征在于，所述方法包括：
第二网络设备从终端设备接针对第一小区的下行数据的第一状态报告，其中，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述第二网络设备为所述源网络设备且所述第一小区为所述目标小区，或者所述第二网络设备 为所述目标网络设备且所述第一小区为所述源小区。
因此，本申请实施例中，当终端设备同时与源小区和目标小区连接时，终端设备可以向第二网络设备发送针对第一小区的下行数据的状态报告，第二网络设备可以将该状态报告转发给第一网络设备，辅助第一网络设备进行下行重传，其中第二网络设备为源网络设备或目标网络设备中的一个，第一网络设备为另一个。基于此本申请实施例能够避免终端设备同时与源小区和目标小区进行上行数据传输时产生同频干扰。另外，当终端设备在只能向一个小区发送上行数据时，能够支持与两个小区的同时连接。
结合第四方面，在第四方面的某些实现方式中，所述第二网络设备从终端设备接收针对第一小区的下行数据的第一状态报告，包括：
所述第二网络设备从所述终端设备接收专用RRC消息，所述专用RRC消息中包括所述第一状态报告。
结合第四方面，在第四方面的某些实现方式中，所述第一状态报告包括第一指示，所述第一指示用于指示所述第一状态报告为所述第一小区的状态报告。
结合第四方面，在第四方面的某些实现方式中，所述第一状态报告包括RLC状态报告或PDCP状态报告。
第五方面，提供了一种通信装置，用于执行上述任一方面或任一方面的任意可能的实现方式中的方法。示例性的，该通信装置包括用于执行上述任一方面或任一方面的任意可能的实现方式中的方法的单元。
第六方面，提供了一种通信装置，该装置包括：处理器和收发器，可选的，该装置还可以包括存储器和总线系统。其中，该收发器、该存储器和该处理器通过该总线系统相连，该存储器用于存储指令，该处理器用于执行指令，比如执行该存储器存储的指令，以控制收发器接收和/或发送信号，并且当该处理器执行指令，比如执行该存储器存储的指令时，该执行使得该处理器或该通信装置执行上述任一方面或任一方面的任意可能的实现方式中的方法。
第七方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述任一方面的任意可能的实现方式中的方法的指令。
第八方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被通信设备(例如，终端设备或网络设备)的通信单元、处理单元或收发器、处理器运行时，使得通信设备执行上述任一方面的任意可能的实现方式中的方法。
第九方面，提供了一种芯片，该芯片可应用于通信装置，该芯片包括至少一个处理器，当该至少一个处理器执行指令时，使得该芯片或该通信装置执行上述任一方面的任意可能的实现方式中的方法，该芯片还可以包括存储器，该存储器可用于存储涉及的指令。
第十方面，提供了一种通信系统，该通信系统包括上述源网络设备和目标网络设备。
附图说明
图1示出了适用于本申请实施例的小区切换的方法的示意性场景图。
图2示出了本申请实施例提供的一种传输数据的方法的示意性流程图。
图3示出了本申请实施例提供的另一种传输数据的方法的示意性流程图。
图4示出了一种PDCP状态报告的示意图。
图5示出了本申请实施例提供的一种一种PDCP状态报告的示意图。
图6示出了本申请实施例提供的一种通信装置的示意性框图。
图7示出了本申请实施例提供的另一种通信装置的示意性框图。
图8示出了本申请实施例提供的另一种通信装置的示意性框图。
图9示出了本申请实施例提供的一种终端设备的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global system for mobile communications，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、未来的第五代(5th generation，5G)系统或新无线(new radio，NR)等。
本申请实施例中的终端设备可以指用户设备、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。终端设备还可以是蜂窝电话、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、个人数字助理(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，本申请实施例对此并不限定。
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，该网络设备可以是全球移动通信(global system for mobile communications，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(evolved 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。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且， 本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
作为举例，对于LTE通信系统而言，每个eNB下可以存在多个小区，本申请实施例的技术方案可以适用于每个小区中的eNB和UE。对于5G或NR系统而言，在一个gNB下，可能存在一个或多个发送接收点(transmission reception point，TRP)，本申请实施例的技术方案可以适用于每个gNB或TRP。对于中心单元(central unit,CU)-分布式单元(distributed unit,DU)分离的场景，在一个CU下，可能存在多个DU，本申请实施例的技术方案可以适用于每个CU或DU。需要说明的是，CU-DU分离场景和多TRP场景的区别在于，TRP只是一个射频单元或一个天线设备，而DU中可以实现协议栈功能，例如DU中可以实现物理层功能。
如图1所示，当终端设备移动时，能够根据小区的信号强度的变化，发生服务小区的切换。在图1中，源网络设备为终端设备当前所在的服务小区所属的网络设备，目标网络设备为终端设备将要切换到的目标小区所属的网络设备。这里，终端设备在没有完成切换之前，当前的服务小区即源小区。本申请实施例中，在终端设备与目标网络设备的随机接入过程中，终端设备与源网络设备的连接也不会中断。这样在切换的过程中，会存在一段时间，终端设备同时与源网络设备和目标网络设备保持连接，终端设备可以同时与源网络设备和目标网络设备进行数据传输。
对上行数据传输而言，终端设备需要分别发送上行数据，这里上行数据包括上行用户数据和/或上行控制信息，其中，上行控制信息包括针对源小区和目标小区的下行数据的肯定应答(acknowledge，ACK)/否定应答(negative-acknowledge，NACK)反馈、源小区和目标小区的信道状态信息(channel status information，CSI)等信息中的至少一个。其中，CSI信息例如为RI、PMI、CQI等，本申请实施例对此不做限定。
具体的，在终端设备同时与源网络设备和目标网络设备连接的情况下，终端设备可以同时接收源网络设备发送的下行数据和目标小区发送的下行数据。本申请实施例中，终端设备需要向网络设备反馈源小区的CSI，使得网络设备能够根据该CSI进行源小区的下行数据调度。当终端设备接收到源小区发送的下行数据时，需要向网络设备反馈源小区该下行数据的混合自动重传请求(hybrid automatic retransmission request，HARQ)ACK/NACK信息。同理，终端设备需要向网络设备反馈目标小区CSI，使得网络设备能够根据该CSI进行目标小区的下行数据调度。当终端设备接收到目标小区的下行数据时，需要向网络设备发 送针对目标小区该下行数据的HARQ ACK/NACK信息。
本申请实施例中，当源小区与目标小区为同频小区时，为了避免终端设备同时与源小区和目标小区进行上行数据传输产生同频干扰，可以采用只保留一条上行通道的方式实现干扰避免。这种方式也适用于只有单上行能力的终端设备。具体而言，终端设备同时与源网络设备和目标网络设备通信时，可以只向源网络设备或目标网络设备中的其中一个网络设备发送上行数据，进而避免上行同频干扰。
图2示出了本申请实施例提供的一种数据传输的方法的示意图。这里，终端设备在由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接。图2中以执行主体为终端设备和第一网络设备进行说明，其中第一网络设备为源网络设备或目标网络设备。作为示例而非限定，这里终端设备也可以替换为终端设备的芯片，本申请实施例对此不作具体限定。
应理解，图2示出了数据传输的方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图2中的各个操作的变形。此外，图2中的各个步骤可以按照与图2呈现的不同的顺序来执行，并且有可能并非要执行图2中的全部操作。
210，第一网络设备向终端设备发送第一信息，第一信息用于指示该终端设备向第一网络设备发送上行数据。对应的，终端设备从第一网络设备接收该第一信息。
本申请实施例中，上行数据包括上行用户数据和/或上行控制信息，其中，上行控制信息包括HARQ ACK/NACK和信道状态信息CSI中的至少一种。具体的，上行数据可以参见上文中的描述，为避免重复，这里不再赘述。
具体而言，当第一网络设备为目标网络设备时，目标网络设备可以向终端设备发送该第一信息，指示终端设备向目标网络设备发送上行数据。
一种可能的实现方式，目标网络设备可以将第一信息包含在切换确认的容器(container)，即切换命令中，发送给源网络设备，再由源网络设备将切换命令转发给终端设备。一种可能的实现方式中，目标网络设备可以单独将第一信息发送给终端设备，或者目标网络设备将该第一信息包含在现有消息(例如RRC连接重配置消息)中发送给终端设备，本申请实施例对此不做限定。
当第一网络设备为源网络设备时，源网络设备可以向终端设备发送该第一信息，指示终端设备向源网络设备发送上行数据。
一种可能的实现方式中，源网络设备可以将第一信息包含在切换请求中发送给目标网络设备，然后目标网络设备将该第一消息包含在切换确认的container，即切换命令中发送给源网络设备，再由源网络设备将切换命令转发给终端设备。一种可能的实现方式中，源网络设备单独将第一信息发送给终端设备，或者源网络设备将该第一信息包含在现有消息(例如RRC连接重配置消息)中发送给终端设备，本申请实施例对此不做限定。
需要说明的是，本申请实施例中，当上行数据为上行用户数据时，终端设备可以只向源网络设备或目标网络设备中的其中一个发送上行用户数据，而不需要向另一个网络设备发送该上行用户数据。当终端设备同时接收两个网络设备的下行数据时，终端设备需要向源网络设备或目标网络设备中的其中一个网络设备反馈源小区的上行控制信息和目标小区的上行控制信息，这里上行控制信息例如HARQ ACK/NACK和CSI信息。其中HARQ信息用于指示下行数据是否接收成功，CSI信息用于反馈下行信道信息，为网络设备进行下 行调度提供参考信息。
可选的，本申请实施例中，第一信息可以包括所述第一网络设备配置的第一上行资源指示和第二上行资源指示，其中，第一上行资源指示用于指示传输源小区的上行控制信息的控制信道资源，第二上行资源指示用于指示传输目标小区的上行控制信息的控制信道资源。这里，控制信道资源例如为物理上行控制信道(physical uplink control channel，PUCCH)资源，本申请实施例对此不作具体限定。
具体而言，此时第一网络设备为终端设备配置了两套控制信道资源，例如两套PUCCH专用资源，其中一套用于传输源小区的上行控制信息，另外一套用于传输目标小区的上行控制信息。一种可能的实现方式中，控制信道资源包括资源索引号。可选的，当控制信道资源为PUCCH专用资源时，该PUCCH专用资源包括PUCCH资源索引号。可选的，该PUCCH专用资源还包括PUCCH格式。一种可能的实现方式中，PUCCH格式可以隐含体现在资源索引号中。
可选的，本申请实施例中，第一信息用于指示所述终端设备通过上行数据信道资源随路传输所述源小区的上行控制信息和所述目标小区的上行控制信息。这里，上行数据信道资源例如可以为物理上行共享信道(physical uplink shared channel,PUSCH)资源。
在210中，可替换的，第一网络设备可以不向终端设备发送该第一信息，而是由协议规定该终端设备向第一网络设备发送上行数据，本申请实施例对此不作限定。
220，终端设备向所述第一网络设备发送上行数据。对应的，第一网络设备接收终端设备发送的上行数据。
一种可能的实现方式中，当第一信息包括第一网络设备配置的第一上行资源指示和第二上行资源指示时，终端设备可以将源小区的上行控制信息通过第一上行资源指示所指示的控制信道资源传输给第一网络设备，将目标小区的上行控制信息通过第二上行资源指示所指示控制信道资源传输给第一网络设备。
具体的，当控制信道资源包括资源索引号时，终端设备可以根据该资源索引号，计算出控制信道资源。
另一种可能的实现方式中，当第一信息用于指示终端设备通过上行数据信道随路传输源小区的上行控制信息和目标小区的上行控制信息时，终端设备可以在通过上行数据信道资源传输上行用户数据时，可以使用该上行数据信道资源传输源小区的上行控制信息和目标小区的上行控制信息，即使用该上行数据信道资源穗路传输源小区的上行控制信息和目标小区的上行控制信息。
本申请实施例中，当源网络设备收到终端设备发送上行数据，该上行数据中包括源小区的上行控制信息和目标小区的上行控制信息时，源网络设备将目标小区的上行控制信息转发给目标网络设备。当目标网络设备收到终端设备发送的上行数据，该上行数据中包括源小区的上行控制信息和目标小区的上行控制信息时，目标网络设备将源小区的上行控制信息发送给源网络设备。作为示例，源网络设备和目标网络设备之间可以使用回传链路(backhual)进行数据传输。
因此，本申请实施例中，当终端设备同时与源网络设备和目标网络设备连接时，终端设备可以只向源网络设备或目标网络设备中的其中一个网络设备发送上行数据，即本申请实施例中只保留一条上行通道的来传输两个网络设备的上行数据，避免终端设备同时与源 小区和目标小区进行上行数据传输时产生同频干扰。另外，当终端设备在只能向一个小区发送上行数据时，能够支持与两个小区的同时连接。
本申请实施例中，当源网络设备与目标网络设备之间不具有理想回传(backhaul)条件时，终端设备可以向源网络设备或目标网络设备反馈分组数据汇聚协议(packet data convergence protocol，PDCP)状态报告或无线链路层控制协议(radio link control,RLC)状态报告，而不需要反馈ACK/NACK反馈或CSI。
具体而言，PDCP状态报告通常用于切换的过程中的数据重传。在切换完成后，终端设备或者网络设备可以向对方发送PDCP状态报告，用于指示传输成功的PDCP SN号和传输不成功的PDCP SN号，用于辅助对方进行重传。RLC状态报告是RCL层启动自动重传请求(automatic repeat-request，ARQ)功能时，收端向发端指示传输成功的无线链路控制(radio link control，RLC)序列号(sequence number，SN)号和传输不成功的RLC SN号，用于辅助对方进行重传。
图3示出了本申请实施例提供的一种数据传输的方法的示意图。这里，终端设备在由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接。图3中以执行主体为终端设备和第一网络设备进行说明，其中第一网络设备为源网络设备或目标网络设备中的一个。作为示例而非限定，这里终端设备也可以替换为终端设备的芯片，本申请实施例对此不作具体限定。
310，终端设备确定针对第一小区的下行数据的第一状态报告，其中，所述第一小区为源小区或目标小区中的一个。
一种具体的实现方式中，所述第一状态报告包括RLC状态报告或PDCP状态报告。具体的，RLC状态报告和PDCP状态报告可以参见上文中的描述，为避免重复，这里不再赘述。
具体的，当终端设备只与目标网络设备保持上行传输时，对于目标网络设备向终端设备发送的下行数据，终端设备可以通过与目标网络设备之间的上行链路向目标网络设备进行ACK/NACK反馈和CSI信息上报。另外，可选的，终端设备也可以向目标网络设备进行RLC或PDCP级别的状态报告的反馈，此时终端设备可以确定针对目标小区的RLC状态报告或PDCP状态报告。对于源网络设备向终端设备发送的下行数据，终端设备可以进行RLC或PDCP级别的状态报告的反馈。这里，终端设备可以进行ACK/NACK反馈和/或CSI信息上报，或者不进行ACK/NACK反馈和/或CSI信息的上报，本申请实施例对此不作限定。
320，所述终端设备向第二网络设备发送所述第一状态报告。对应的，第二网络设备接收该第一状态报告，并将该第一状态报告转发给第一网络设备。
其中，所述第二网络设备为源网络设备，第一网络设备为目标网络设备，所述第一小区为目标小区，第二小区为源小区。或者所述第二网络设备为目标网络设备，第一网络设备为源网络设备，所述第一小区为源小区，第二小区为目标小区。也就是说，当第一小区为目标小区，第二小区为源小区时，第一网络设备为目标网络设备，第二网络设备为源网络设备。当第一小区为源小区，第二小区为目标小区时，第一网络设备为源网络设备，第二网络设备为目标网络设备。
作为举例，当终端设备在310中确定了针对源小区的下行数据的RLC状态报告或PDCP状态报告之后，终端设备向目标网络设备发送该针对源小区的下行数据的RLC状态报告或 PDCP状态报告。然后，目标网络设备将该针对源小区的下行数据的RLC状态报告或PDCP状态报告发送给源网络设备。
本申请实施例中，终端设备使用第二网络设备的上行资源发送第一小区的状态报告。
一种实现方式中，终端设备可以向第二网络设备发送专用RRC消息，所述专用RRC消息中包括所述第一状态报告。
在该方式下，终端设备可以将状态报告封装为一条新的RRC消息，或者将状态报告封装在现有的RRC消息中。可选的，该RRC消息中还可以包括指示信息，该指示信息用于指示该状态报告为RLC状态报告或PDCP状态报告。可选的，该RRC消息中还可以包括指示信息，该指示信息用于指示该状态报告是源小区或目标小区的状态报告。
另一种实现方式中，终端设备可以向第二网络设备发送针对第二小区的下行数据的第二状态报告，并采用与发送该第二状态报告相同的方式和/或消息结构向第二网络设备发送该第一状态报告，其中，所述第一状态报告包括第一指示，所述第一指示用于指示所述第一状态报告为所述第一小区的状态报告。本申请实施例中，第一指示还可以具有其他名称，例如可以被称为小区指示域，本申请实施例对此不作具体限定。
可选的，第二状态报告也可以包括第二指示，所述第二指示用于指示所述第二状态报告为所述第二小区的状态报告。或者可选的，第二状态报告也可以与现有技术一样，即不需要包括第二指示。第二网络设备接收到第一状态报告和第二状态报告之后，可以根据第一指示或者第二指示确定哪个状态报告为第一网络设备的状态报告，哪个状态报告为第二网络设备的状态报告。
具体而言，终端设备可以在现有的状态报告中新增加小区指示域，或者使用现有状态报告中的预留域(R域)作为小区指示域，该小区指示域用于指示状态报告所对应的小区。此时，终端设备可以分别向第二网络设备发送针对第二小区的下行数据的状态报告和针对第一小区的下行数据的状态报告，其中，这里发送的针对第二小区的下行数据的状态报告可以与现有技术中终端设备向第二网络设备发送的针对第二小区的下行数据的状态报告结构相同，针对第一小区的的下行数据的状态报告中可以包括上述小区指示域。
图4示出了一种PDCP状态报告的示意图。其中，D/C占用一个bit，表示该PDCP状态报告对应的协议数据单元(protocol data unit，PDU)为控制PDU或数据PDU；FMS(First missing PDCP SN，第一个丢失的PDCP SN)及FMS(cont.)(FMS后续bit)占用15个bit，表示第一个丢失的PDCP PDU的PDCP SN值。可选的，该PDCP状态报告还包括位图1至位图N，分别表示后续PDCP PDU是否被正确接收。该PDCP状态报告中SN号为15比特(bit)，其中有5bit的R域。本申请实施例中，作为举例，当终端设备向目标网络设备发送该针对源小区的下行数据的PDCP状态报告时，对于源小区的下行数据的PDCP状态报告而言，该5bit R域中的其中一个bit或多个bit可以作为小区指示域，如图5所示，可以将5bit R域中的前1bit用于指示该PDCP状态报告为源小区的下行数据的PDCP状态报告，对于目标小区的下行数据的PDCP状态报告而言，该5bit R域仍然为保留域。
可选的，本申请实施例中，终端设备可以向第二网络设备发送第三状态报告，该第三状态报告包括第一状态报告和第二状态报告。作为示例，第三状态报告中可以包括两个图4中所示的PDCP状态报告，其中一个为第一状态报告，其中另一个为第二状态报告。这 时，第一状态报告的5bit的R域中至少有一个R域作为小区指示域，用于指示该第一状态报告为针对第一小区的下行数据的状态报告。类似的，第二状态报告的5bit的R域中至少有一个R域作为小区指示域，用于指示该第二状态报告为针对第二小区的下行数据的状态报告。可选的，在第三状态报告中使用2个bit的R域作为指示域，分别用于指示第一状态报告和第二状态报告是否存在。
因此，本申请实施例中，当终端设备同时与源小区和目标小区连接时，终端设备可以向第二网络设备发送针对第一小区的下行数据的状态报告，第二网络设备可以将该状态报告转发给第一网络设备，辅助第一网络设备进行下行重传，其中第二网络设备为源网络设备或目标网络设备中的一个，第一网络设备为另一个。基于此本申请实施例能够避免终端设备同时与源小区和目标小区进行上行数据传输时产生同频干扰。另外，当终端设备在只能向一个小区发送上行数据时，能够支持与两个小区的同时连接。
上述结合图2和图3主要从不同设备之间交互的角度对本申请实施例提供的方案进行了介绍。下面将结合图6至图9描述执行本申请实施例提供的方案的设备。可以理解的是，源网络设备、目标网络设备和终端设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本申请中所公开的实施例描述的各示例的单元及算法步骤，本申请实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的技术方案的范围。
本申请实施例可以根据上述方法示例对源网络设备、目标网络设备和终端设备等进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，图6示出了本申请实施例中所涉及的一种通信装置的一种可能的示例性框图，该装置600可以以软件、硬件或软硬结合的形式存在。图6示出了本申请实施例中所涉及的装置的一种可能的示意性框图。装置600包括：处理单元602和通信单元603。处理单元602用于对装置的动作进行控制管理。通信单元603用于支持装置与其他设备的通信。装置还可以包括存储单元601，用于存储装置的程序代码和数据。
图6所示的装置600可以是本申请实施例所涉及的源网络设备、目标网络网设备。
当图6所示的装置600为源网络设备时，处理单元602能够支持装置600执行上述各方法示例中由源网络设备完成的动作，当图2中第一网络设备为源网络设备时，例如，处理单元602支持装置600执行例如图2中生成210中第一信息、处理220中接收到的上行数据的动作，当图3中第二网络设备为源网络设备时，例如处理单元602支持装置600执行例如图3中的处理320接收到的第一状态报告的动作，和/或用于本文所描述的技术的其它过程。通信单元603能够支持装置600与目标网络设备、终端设备等之间的通信，例如，当图2中第一网络设备为源网络设备时，通信单元603支持装置600执行图2中的步骤210，220，当图3中第二网络设备为源网络设备时，通信单元603支持装置600执行图3中的步骤320，和/或其他相关的通信过程。
当图6所示的装置600为目标网络设备时，目标网络设备的动作与上一段中描述的源网络设备的动作相同或相似，为了简洁，这里不再赘述。
示例性地，处理单元602可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)，通用处理器，数字信号处理器(digital signal processor，DSP)，专用集成电路(application-specific integrated circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，单元和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元603可以是通信接口，该通信接口是统称，在具体实现中，该通信接口可以包括一个或多个接口。存储单元601可以是存储器。
当处理单元602为处理器，通信单元603为通信接口，存储单元601为存储器时，本申请实施例所涉及的装置600可以为图7所示的通信装置700。
参阅图7所示，该装置700包括：处理器702和通信接口703。进一步地，该装置700还可以包括存储器701。可选的，装置700还可以包括总线704。其中，通信接口703、处理器702以及存储器701可以通过总线704相互连接；总线704可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。所述总线704可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
其中，处理器702可以通过运行或执行存储在存储器701内的程序，执行所述装置700的各种功能。
示例性地，图7所示的通信装置700可以是本申请实施例所涉及的源网络设备、目标网络设备。
当装置700为源网络设备时，处理器702可以通过运行或执行存储在存储器701内的程序，执行上述各方法示例中由源网络设备完成的动作。当装置700为目标网络设备时，处理器702可以通过运行或执行存储在存储器701内的程序，执行上述各方法示例中由目标网络设备完成的动作。
在采用集成的单元的情况下，图8示出了本申请实施例中所涉及的另一种装置的一种可能的示例性框图，该装置800可以以软件、硬件或软硬结合的形式存在。图8示出了本申请实施例中所涉及的装置的一种可能的示意性框图。装置800包括：处理单元802和通信单元803。处理单元802用于对装置的动作进行控制管理。通信单元803用于支持装置与其他设备的通信。装置还可以包括存储单元801，用于存储装置的程序代码和数据。
图8所示的通信装置800可以是终端设备，也可以为应用于终端设备的芯片。处理单元802能够支持装置800执行上述各方法示例中由终端设备完成的动作，例如，处理单元802支持装置802执行例如图3中的处理210中的第一信息、确定220中的上行数据，图2中的310，确定第一状态报告的动作，和/或用于本文所描述的技术的其它过程。通信单元803能够支持装置800与源网络设备和目标网络设备等之间的通信，例如，通信单元803支持装置800执行图2中的步骤210、220，图3中的步骤320，和/或其他相关的通信过程。
示例性地，处理单元802可以是处理器或控制器，例如可以是CPU，通用处理器，DSP，ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，单元和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元803可以是通信接口，该通信接口是统称，在具体实现中，该通信接口可以包括一个或多个接口。存储单元801可以是存储器。
当处理单元802为处理器，通信单元803为收发器，存储单元801为存储器时，本申请实施例所涉及的装置800可以为图9所示的终端设备。
图9示出了本申请实施例中所涉及的终端设备的一种可能的设计结构的简化示意图。所述终端设备900包括发射器901，接收器902和处理器903。其中，处理器903也可以为控制器，图9中表示为“控制器/处理器903”。可选的，所述终端设备900还可以包括调制解调处理器905，其中，调制解调处理器905可以包括编码器906、调制器907、解码器908和解调器909。
在一个示例中，发射器901调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的基站。在下行链路上，天线接收上述实施例中基站发射的下行链路信号。接收器902调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器905中，编码器906接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器907进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器909处理(例如，解调)该输入采样并提供符号估计。解码器908处理(例如，解交织和解码)该符号估计并提供发送给终端设备1100的已解码的数据和信令消息。编码器906、调制器907、解调器909和解码器908可以由合成的调制解调处理器905来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE、5G及其他演进系统的接入技术)来进行处理。需要说明的是，当终端设备900不包括调制解调处理器905时，调制解调处理器905的上述功能也可以由处理器903完成。
处理器903对终端设备900的动作进行控制管理，用于执行上述本申请实施例中由终端设备900进行的处理过程。例如，处理器903还用于执行2、图3所示方法中涉及终端设备的处理过程和/或本申请所描述的技术方案的其他过程。
进一步的，终端设备900还可以包括存储器904，存储器904用于存储用于终端设备900的程序代码和数据。
结合本申请实施例公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(random access memory，RAM)、闪存、只读存储器(read only memory，ROM)、可擦除可编程只读存储器(erasable programmable ROM，EPROM)、电可擦可编程只读存储器(electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于 ASIC中。另外，该ASIC可以位于集中式单元的控制面实体、集中式单元的用户面实体、终端设备或统一数据存储网元中。当然，处理器和存储介质也可以作为分立组件存在于集中式单元的控制面实体、集中式单元的用户面实体、终端设备或统一数据存储网元中。
本申请实施例还提供了一种计算机可读存储介质，包括计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行上述方法实施例提供的方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得所述计算机执行上述方法实施例提供的方法。
本申请实施例还提供了一种芯片，该芯片可应用于通信装置，该芯片包括至少一个处理器，当该至少一个处理器执行指令时，使得该芯片或该通信装置执行上述方法实施例提供的方法，该芯片还可以包括存储器，该存储器可用于存储涉及的指令。
应理解，本发明实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)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。
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。
还应理解，本文中涉及的第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请的范围。
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，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。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。
所述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所述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以所述权利要求的保护范围为准。

Claims (22)

  1. 一种数据传输的方法，其特征在于，所述方法由终端设备执行，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述方法包括：
    所述终端设备接收第一信息，所述第一信息用于指示所述终端设备向第一网络设备发送上行数据，所述第一网络设备为所述目标网络设备或所述源网络设备中的一个；
    所述终端设备向所述第一网络设备发送上行数据。
  2. 根据权利要求1所述的方法，其特征在于，所述第一信息包括所述第一网络设备配置的第一上行资源指示和第二上行资源指示，其中，所述第一上行资源指示用于指示传输源小区的上行控制信息的控制信道资源，所述第二上行资源指示用于指示传输目标小区的上行控制信息的控制信道资源。
  3. 根据权利要求2所述的方法，其特征在于，所述控制信道资源包括资源索引号。
  4. 根据权利要求1所述的方法，其特征在于，所述第一信息用于指示所述终端设备通过上行数据信道资源随路传输所述源小区的上行控制信息和所述目标小区的上行控制信息。
  5. 根据权利要求2-4任一项所述的方法，其特征在于，所述上行控制信息包括确认ACK/不确认NACK和信道状态信息CSI中的至少一种。
  6. 一种数据传输的方法，其特征在于，所述方法包括：
    第一网络设备向终端设备发送第一信息，所述第一信息用于指示所述终端设备向所述第一网络设备发送上行数据，其中，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述第一网络设备为所述目标网络设备或所述源网络设备中的一个；
    所述第一网络设备从所述终端设备接收上行数据。
  7. 根据权利要求6所述的方法，其特征在于，所述第一信息包括所述第一网络设备配置的第一上行资源指示和第二上行资源指示，其中，所述第一上行资源指示用于指示传输源小区的上行控制信息的控制信道资源，所述第二上行资源指示用于指示传输目标小区的上行控制信息的控制信道资源。
  8. 根据权利要求7所述的方法，其特征在于，所述控制信道资源包括资源索引号。
  9. 根据权利要求1所述的方法，其特征在于，所述第一信息用于指示所述终端设备通过上行数据信道资源随路传输所述源小区的上行控制信息和所述目标小区的上行控制信息。
  10. 根据权利要求7-9任一项所述的方法，其特征在于，所述上行控制信息包括确认ACK/不确认NACK和信道状态信息CSI中的至少一种。
  11. 一种数据传输的方法，其特征在于，所述方法由终端设备执行，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述方法包括：
    所述终端设备确定针对第一小区的下行数据的第一状态报告，其中，所述第一小区为所述源小区或所述目标小区中的一个；
    所述终端设备向第二网络设备发送所述第一状态报告，其中，所述第二网络设备为所 述源网络设备且所述第一小区为所述目标小区，或者所述第二网络设备为所述目标网络设备且所述第一小区为所述源小区。
  12. 根据权利要求11所述的方法，其特征在于，所述终端设备向第二网络设备发送所述第一状态报告，包括：
    所述终端设备向所述第二网络设备发送专用RRC消息，所述专用RRC消息中包括所述第一状态报告。
  13. 根据权利要求11或12所述的方法，其特征在于，所述第一状态报告包括第一指示，所述第一指示用于指示所述第一状态报告为所述第一小区的状态报告。
  14. 根据权利要求11-13任一项所述的方法，其特征在于，所述第一状态报告包括RLC状态报告或PDCP状态报告。
  15. 一种传输数据的方法，其特征在于，所述方法包括：
    第二网络设备从终端设备接针对第一小区的下行数据的第一状态报告，其中，所述终端设备由源小区切换到目标小区的过程中，同时与源网络设备和目标网络设备连接，所述第二网络设备为所述源网络设备且所述第一小区为所述目标小区，或者所述第二网络设备为所述目标网络设备且所述第一小区为所述源小区。
  16. 根据权利要求15所述的方法，其特征在于，所述第二网络设备从终端设备接收针对第一小区的下行数据的第一状态报告，包括：
    所述第二网络设备从所述终端设备接收专用RRC消息，所述专用RRC消息中包括所述第一状态报告。
  17. 根据权利要求15或16所述的方法，其特征在于，所述第一状态报告包括第一指示，所述第一指示用于指示所述第一状态报告为所述第一小区的状态报告。
  18. 根据权利要求15-17任一项所述的方法，其特征在于，所述第一状态报告包括RLC状态报告或PDCP状态报告。
  19. 一种终端设备，包括处理器和存储器；
    所述处理器用于从所述存储器读取并运行指令，以实现如权1-5任一所述的方法，或如权11-14任一项所述的方法。
  20. 一种网络设备，包括处理器和存储器；
    所述处理器用于从所述存储器读取并运行指令，以实现如权6-10任一所述的方法。
  21. 一种网络设备，包括处理器和存储器；
    所述处理器用于从所述存储器读取并运行指令，以实现如权15-18任一所述的方法。
  22. 一种通信系统，包括如权20的网络设备以及权21的网络设备。
PCT/CN2018/108148 2018-09-27 2018-09-27 数据传输的方法和装置 WO2020061966A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/108148 WO2020061966A1 (zh) 2018-09-27 2018-09-27 数据传输的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/108148 WO2020061966A1 (zh) 2018-09-27 2018-09-27 数据传输的方法和装置

Publications (1)

Publication Number Publication Date
WO2020061966A1 true WO2020061966A1 (zh) 2020-04-02

Family

ID=69950929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/108148 WO2020061966A1 (zh) 2018-09-27 2018-09-27 数据传输的方法和装置

Country Status (1)

Country Link
WO (1) WO2020061966A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161192A1 (zh) * 2013-04-03 2014-10-09 华为技术有限公司 一种数据的传输方法、通信设备和通信系统
US9220044B2 (en) * 2001-10-10 2015-12-22 Qualcomm Incorporated Methods and apparatus for quickly exploiting a new link during hand-off in a wireless network
WO2017138977A1 (en) * 2016-02-12 2017-08-17 Intel IP Corporation Systems and methods for reducing interruptions in data transmissions due to handover operations
CN107690163A (zh) * 2016-08-03 2018-02-13 中兴通讯股份有限公司 小区切换方法及装置
CN107889172A (zh) * 2016-09-29 2018-04-06 中兴通讯股份有限公司 小区切换的方法、装置及系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9220044B2 (en) * 2001-10-10 2015-12-22 Qualcomm Incorporated Methods and apparatus for quickly exploiting a new link during hand-off in a wireless network
WO2014161192A1 (zh) * 2013-04-03 2014-10-09 华为技术有限公司 一种数据的传输方法、通信设备和通信系统
WO2017138977A1 (en) * 2016-02-12 2017-08-17 Intel IP Corporation Systems and methods for reducing interruptions in data transmissions due to handover operations
CN107690163A (zh) * 2016-08-03 2018-02-13 中兴通讯股份有限公司 小区切换方法及装置
CN107889172A (zh) * 2016-09-29 2018-04-06 中兴通讯股份有限公司 小区切换的方法、装置及系统

Similar Documents

Publication Publication Date Title
TWI575984B (zh) 用於功率節省及範圍改善之增強長期演進技術上行鏈路混合式自動重複請求反饋指示
TWI530144B (zh) 處理通訊運作的方法及其通訊裝置
WO2019091233A1 (zh) 一种带宽切换方法及装置
TWI732000B (zh) 傳輸數據的方法和裝置
AU2018408015B2 (en) Method and device for transmitting uplink control information
US20180262302A1 (en) Wireless device, a network node and methods therein for harq feedback prioritization
EP3742658B1 (en) Method for transmitting feedback information, terminal equipment and base station
US9276699B2 (en) Error control in a communication system
WO2019192516A1 (zh) 一种传输数据的方法、装置和系统
US20230069144A1 (en) Methods and nodes for activation or deactivation of a carrier in a communication network supporting carrier aggregation
US11882566B2 (en) Communications method and apparatus
WO2021012996A1 (zh) 信息传输方法及装置
EP3634076B1 (en) Method and device for processing data
WO2018152790A1 (zh) 传输反馈信息的方法、终端设备和网络设备
WO2014117391A1 (zh) 传输数据的方法、基站和用户设备
WO2017220855A1 (en) Method and apparatus for performing packet duplication in a multi-connectivity scenario
WO2019076347A1 (zh) 通信方法和通信装置
US20220368505A1 (en) Data feedback method and apparatus
WO2016161584A1 (zh) 一种数据重传方法、设备及系统
CN108353423B (zh) 用于管理关于上行链路传送的剩余数据块的上行链路资源的分配的方法和布置
WO2020000422A1 (zh) 传输下行控制信息的方法和设备
WO2019028965A1 (zh) 传输数据的方法和装置
WO2018120107A1 (zh) 通信方法、网络设备和终端设备
WO2020103316A1 (zh) 一种传输数据的方法和终端设备
WO2020061966A1 (zh) 数据传输的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18935371

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18935371

Country of ref document: EP

Kind code of ref document: A1