[go: up one dir, main page]

WO2018127017A1 - 通信方法和网络设备 - Google Patents

通信方法和网络设备 Download PDF

Info

Publication number
WO2018127017A1
WO2018127017A1 PCT/CN2017/120202 CN2017120202W WO2018127017A1 WO 2018127017 A1 WO2018127017 A1 WO 2018127017A1 CN 2017120202 W CN2017120202 W CN 2017120202W WO 2018127017 A1 WO2018127017 A1 WO 2018127017A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
information
data transmission
data unit
sent
Prior art date
Application number
PCT/CN2017/120202
Other languages
English (en)
French (fr)
Inventor
耿婷婷
曾清海
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
Publication of WO2018127017A1 publication Critical patent/WO2018127017A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H04W36/087—Reselecting an access point between radio units of access points

Definitions

  • the present application relates to communication technologies, and in particular, to a communication method and a network device.
  • NR New Radio Access Technology
  • LTE Long Term Evolution
  • the NR cell includes a distributed architecture and a centralized architecture, and the distributed architecture includes a centralized unit (Central), and a plurality of distributed units (DUs).
  • the CU can manage multiple DUs.
  • the centralized architecture is similar to the traditional LTE network architecture, and the NR base station management
  • the mobility of the User Equipment (UE), when the UE moves in the NR cell, may need to switch from one NR base station to another NR base station in order to obtain a better data transmission service.
  • UE User Equipment
  • each DU has an independent Radio Link Control (RLC) layer and/or a Medium Access Control (MAC) layer, and the UE moves within the NR cell.
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the UE disconnects the original DU and resets the RLC layer and/or the MAC layer on the UE side, and according to the handover indication, The data transmission can be continued after the target DU is successfully accessed.
  • the RLC layer and/or the MAC layer reset may cause an interruption of data transmission, thereby affecting the continuity of data transmission.
  • the application provides a communication method and network device to improve the continuity of data transmission.
  • a first aspect of the present application provides a communication method, including:
  • the network device has the same data transmission state information between the first network device and the UE as the first network device, and the second network device can perform data transmission with the UE according to the data transmission state information. In this process, the UE has no perception and improves the continuity of data transmission.
  • the data transmission status information includes information of data units that have not been transmitted by the first network device and/or information of untransmitted data units.
  • the information of the untransmitted data unit includes: sequence information of the untransmitted data unit;
  • the transmitted information of the data unit that has not received the feedback information includes at least one of the following: sequence information of the transmitted data unit that has not received the feedback information, data transmission timer, time information of the hybrid automatic repeat request HARQ process.
  • the data unit transmission confirmation information of the HARQ process the acknowledgement information of the data unit, the maximum transmission state variable, the maximum reception state variable, the transmission state variable, the reception state variable, and the transmission window.
  • it also includes:
  • the second network device receives the configuration information of the UE, and the configuration information of the UE includes at least one of the following configuration parameters:
  • it also includes:
  • the second network device receives the data unit that has not received the feedback information that has been sent by the first network device and/or the untransmitted data unit.
  • receiving a data unit and/or an unsent data unit that has been sent by the first network device and not receiving the feedback information includes:
  • the second network device receives the data unit that has been sent by the first network device sent by the first network device and does not receive the feedback information, and/or the untransmitted data unit.
  • it also includes:
  • the second network device sends an acknowledgement message, where the acknowledgement message is used to indicate that the second network device and the UE are successfully established.
  • the second network device sends a confirmation message, including:
  • the second network device sends the confirmation information to the first network device
  • the second network device sends a confirmation message, including:
  • the second network device sends an acknowledgement message to the third network device.
  • the method further includes:
  • the second network device sends the link release indication information to the first network device, where the link release indication information is used to instruct the first network device to delete the configuration information and/or the data transmission status information of the UE.
  • the second network device receives the data transmission status information, including:
  • the second network device receives data transmission status information sent by the UE.
  • the second network device receives the configuration information of the UE, including:
  • the second network device receives configuration information of the UE sent by the third network device.
  • a second aspect of the present application provides a communication method, including:
  • the first network device acquires data transmission status information, where the data transmission status information is used to indicate data transmission status information of the radio link control protocol stack and/or the medium access control protocol stack in the first network device; the first network device sends Data transfer status information.
  • the second network device is made to have the same data transmission state information between the first network device and the UE as the first network device, and the second network device can perform data transmission with the UE according to the data transmission state information. In this process, the UE has no perception and improves the continuity of data transmission.
  • the data transmission status information includes information of data units that have not been transmitted by the first network device and/or information of untransmitted data units.
  • the information of the untransmitted data unit includes: sequence information of the untransmitted data unit;
  • the transmitted information of the data unit that has not received the feedback information includes at least one of the following: sequence information of the transmitted data unit that has not received the feedback information, data transmission timer, time information of the hybrid automatic repeat request HARQ process.
  • the data unit transmission confirmation information of the HARQ process the acknowledgement information of the data unit, the maximum transmission state variable, the maximum reception state variable, the transmission state variable, the reception state variable, and the transmission window.
  • the first network device sends data transmission status information, including:
  • the first network device sends data transmission status information to the second network device.
  • the first network device sends data transmission status information, including:
  • the first network device sends the data transmission status information to the second network device through the third network device.
  • the method before the first network device sends the data transmission status information to the second network device by using the third network device, the method further includes:
  • the first network device receives the data transmission status report indication information sent by the third network device.
  • it also includes:
  • the first network device sends the transmission resource information to the user equipment UE, where the transmission resource information includes the port number and/or the uplink transmission resource information, and is used to indicate that the UE performs the port and/or the uplink transmission resource information corresponding to the port number with the second network device. data transmission.
  • it also includes:
  • the first network device sends a timer suspension indication information to the UE, and the timer suspension indication information is used to instruct the UE to suspend its data transmission timer.
  • the timer suspension indication information further includes a port number for instructing the UE to listen to the port corresponding to the port number, and restarting the timer after the port receives the data unit.
  • it also includes:
  • the first network device receives the link release indication information, where the link release indication information is used to instruct the first network device to delete the configuration information and/or the data transmission status information of the UE.
  • the first network device receives the link release indication information, including:
  • the first network device receives the link release indication information sent by the third network device.
  • the third aspect of the present application provides a network device, including:
  • the network device provides an air interface for the user equipment UE, and the network device can interact with other network devices, where the network device includes a processor, a memory, and a communication port, and the processor, the memory, and the communication port are all connected through a bus; the memory storage computer executes instructions; The computer executing the memory storage executes instructions to cause the network device to perform data interaction with the other network device and the UE through the communication port to perform the communication method in any one of the above aspects or the first aspect.
  • a fourth aspect of the present application provides a network device, including:
  • the network device provides an air interface for the user equipment UE, and the network device can interact with other network devices, where the network device includes a processor, a memory, and a communication port, and the processor, the memory, and the communication port are all connected through a bus; the memory storage computer executes instructions; The computer executing the memory storage executes instructions to cause the network device to perform data interaction with the other network device and the UE through the communication port to perform the communication method in any of the possible aspects of the second aspect or the second aspect.
  • FIG. 1 is a schematic diagram of a scenario provided by the present application.
  • FIG. 2 is a schematic diagram of another scenario provided by the present application.
  • FIG. 3 is a schematic diagram of still another scenario provided by the present application.
  • FIG. 5 is a schematic flowchart diagram of a communication method provided by the present application.
  • FIG. 6 is a schematic flowchart diagram of another communication method provided by the present application.
  • FIG. 7 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 8 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 9 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 10 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 11 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 12 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 13 is a schematic flowchart diagram of still another communication method provided by the present application.
  • FIG. 14 is a schematic structural diagram of a network device provided by the present application.
  • FIG. 15 is a schematic structural diagram of a network device provided by 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
  • LTE-A Advanced long term evolution
  • UMTS Universal Mobile Telecommunication System
  • user equipment includes but is not limited to a mobile station (Mobile Station, MS: Mobile Terminal), a mobile terminal (Mobile Telephone), a mobile phone ( The handset device can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the user device can be a mobile phone (or "cellular" phone) or a computer with wireless communication capabilities, etc., and the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • the specific type of the network device is not limited, for example, it may be a common base station (such as a NodeB or an eNB), may be a radio remote module, may be a pico, or may be a relay. It can be a centralized network element (Centralized Unit (CU), which can be a distributed network unit (DU), and can be a transmission point (Tra nsmission Point, TP for short) or a transmission receiving point (Transmission). Reception Point (TRP), which can be DU and TP, or any other wireless access device.
  • CU Centralized Unit
  • DU distributed network unit
  • TRP Transmission Point
  • the network device may have a Radio Resource Control (RRC) protocol stack function and/or all or part of a Layer 2 protocol stack function, or the network device may have an RRC protocol stack function and/or all or part of layer 2 Protocol stack and physical layer protocol stack functions.
  • the function of the Layer 2 protocol stack may include at least one of a function in a Packet Data Convergence Protocol (PDCP), an RLC, and a MAC. That is, the layer two protocol stack may be one of PDCP, or RLC, or MAC, or PDCP and RLC, or PDCP and MAC, or RLC and MAC, or PDCP and RLC and MAC.
  • the CU is a network device having RRC and/or PDCP functions
  • the DU is a network device having at least an RLC/MAC protocol stack function
  • the base station is a network device having an RRC, PDCP, RLC, MAC, and/or PHY protocol stack function
  • the CU, DU, and base station are just an exemplary name and are not limited to this name.
  • the network device is CU or DU as an example, and is not limited to this.
  • FIG. 1 is a schematic diagram of a scenario provided by the present application.
  • the scenario includes a CU, a DU, and a TRP.
  • FIG. 1 shows two DUs, which are respectively DU1 and DU2, and the CU manages DU1 and DU2.
  • Each DU manages multiple TRPs.
  • three DUs are managed by each DU as an example, and each TRP has multiple beams.
  • FIG. 2 is a schematic diagram of another scenario provided by the present application.
  • the scenario shown in FIG. 2 includes two CUs, namely, CU1 and CU2, where CU1 manages DU1. , CU2 manages DU2.
  • FIG. 3 is a schematic diagram of still another scenario provided by the present application. As shown in FIG. 3, FIG. 3 is based on the embodiment shown in FIG. 1. The function of the CU and the function of the DU1 are deployed in the same network device (such as a base station). .
  • FIG. 4 is a schematic diagram of still another scenario provided by the present application. As shown in FIG. 4, FIG. 4 is based on the embodiment shown in FIG. 2, and the function of the CU1 and the function of the DU1 are deployed in the same network device, such as the base station 1. The function of CU2 and the function of DU2 are deployed in the same network device, such as base station 2.
  • FIG. 5 is a schematic flowchart of a communication method provided by the present application. As shown in FIG. 5, the embodiment is applied to the scenario shown in FIG. 1.
  • the first network device uses the DU1 as an example
  • the second network device Taking DU2 as an example
  • the third network device takes the CU as an example.
  • the method in this embodiment is as follows:
  • S500 The CU determines to switch from DU1 to DU2 according to the measurement report, or determines to migrate the bearer under the DU1 to the DU2.
  • the bearer of the DU1 is migrated to the DU2, and the part of the bearer under the DU1 is migrated to the DU2.
  • the UE measures the channel quality between DU1 and DU2 and obtains a measurement report. Report the measurement report to the CU.
  • the CU determines whether the UE switches from DU1 to DU2 according to the measurement report, or determines whether to migrate the bearer under DU1 to DU2. If it is determined to switch from DU1 to DU2, or it is determined to migrate the bearer under DU1 to DU2, then S502 is performed.
  • DU1 and DU2 measure the channel quality with the UE, respectively, and obtain a measurement report.
  • DU1 and DU2 report the measurement report to the CU.
  • the CU determines whether the UE switches from DU1 to DU2 according to the measurement report, or determines whether to migrate the bearer under DU1 to DU2. If it is determined to switch from DU1 to DU2, or it is determined to migrate the bearer under DU1 to DU2, then S502 is performed.
  • S502 The CU sends a data transmission status report indication information to the DU1.
  • the data transmission status reporting indication information is used to indicate that the data transmission status between the UE and the UE is reported by the DU1.
  • the data transmission status information is used to indicate data transmission status information of the radio link control and/or the medium access control protocol stack in the DU1.
  • the data transmission status information includes, but is not limited to, at least one of the following: information of a data unit in which the DU1 has transmitted but not received feedback information of the UE to the UE; and information of the data unit that the DU1 has not transmitted to the UE.
  • the data unit is a Protocol Data Unit (PDU) or a Service Data Unit (SDU).
  • the information of the data unit that the DU1 does not send to the UE includes, but is not limited to, sequence information of the untransmitted data unit.
  • the information of the data unit that the DU1 sends to the UE but does not receive the feedback information of the UE includes, but is not limited to, at least one of the following: sequence information of the data unit that has not received the feedback information that has been sent, and data transmission timing Time information of the Hybrid Automatic Repeat Request (HARQ) process, the data unit transmission confirmation information of the HARQ process, the acknowledgement information of the data unit, the maximum transmission state variable, the maximum reception state variable, and the transmission state variable , receive state variables and transfer windows.
  • sequence information of the data unit that has not received the feedback information that has been sent includes, but is not limited to, at least one of the following: sequence information of the data unit that has not received the feedback information that has been sent, and data transmission timing Time information of the Hybrid Automatic Repeat Request (HARQ) process, the data unit transmission confirmation information of the HARQ process, the acknowledgement information of the data unit, the maximum transmission state variable, the maximum reception state variable, and the transmission state variable , receive state variables and transfer windows.
  • HARQ
  • the data transmission timer may be a reordering timer of the RLC or the MAC, or may be a HARQ Round Trip Time (RTT) timer.
  • RTT Round Trip Time
  • S504 The DU1 sends data transmission status information to the CU.
  • the CU is made to obtain data transmission status information between the DU1 and the UE.
  • S506 The CU sends the foregoing data transmission status information to the DU2.
  • the DU2 is made to obtain the data transmission status information between the DU1 and the UE.
  • S508 The CU sends configuration information of the UE to the DU2.
  • the configuration information of the UE includes at least one of the following configuration parameters: a control plane configuration parameter; and a user plane configuration parameter.
  • the control plane configuration parameter includes configuration parameters of a function of the RRC protocol stack; the user plane configuration parameter includes at least one of configuration parameters of a function of a protocol stack such as PDCP, RLC, and MAC.
  • the execution order of S508 and S502-S506 is not limited, and S508 may be performed before S502-S506, may be performed after S502-S506, or may be performed between any two steps S502-S506, Therefore, the application is not limited.
  • the DU2 establishes a control plane entity and/or a user plane entity of the UE according to the data transmission state information and/or the configuration information of the UE.
  • S512 The CU sends, to the DU2, a data unit that has not received the feedback information that has been sent by the DU1 and/or an untransmitted data unit.
  • S514 The DU2 performs data transmission with the UE.
  • the DU2 transmits to the UE the data unit that has not received the feedback information that has been sent by the above DU1 and/or the untransmitted data unit.
  • the CU sends a data transmission status report indication information to the DU1, and instructs the DU1 to report the data transmission status information between the UE and the UE.
  • the CU sends the configuration information of the UE to the DU2 and the data transmission status information reported by the DU1 and the UE.
  • the DU2 is made to obtain the same configuration information of the UE as the DU1 and the data transmission status information between the DU1 and the UE.
  • the DU2 performs data transmission with the UE according to the configuration information of the UE and the data transmission status information between the DU1 and the UE. Therefore, the UE is switched from the DU1 to the DU2, or the UE's bearer under the DU1 is migrated to the DU2, and the UE is not aware in the process, thereby improving the continuity of data transmission.
  • the network device may perform some or all of the steps in the above embodiments, and the steps or operations are merely examples, and the present application may also perform other operations or variations of various operations. Further, the various steps may be performed in a different order as presented in the above embodiments, and it is possible that not all of the operations in the above embodiments are performed.
  • FIG. 6 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 6 is based on the method embodiment shown in FIG. 5, and further includes:
  • S516 The DU2 sends an acknowledgement message to the CU.
  • the confirmation message is used to indicate that the connection establishment of the DU2 and the UE is successful.
  • the methods for determining that the connection between the DU2 and the UE is successfully established include, but are not limited to, the following possible implementation manners:
  • the CU sends the transmission resource information between the UE and the DU2 to the DU1.
  • the DU1 sends the transmission resource information and/or the status report indication information to the UE, where the transmission resource information includes the port number and/or the uplink transmission resource information, and is used to indicate that the UE sends the resource information through the port corresponding to the port number and/or the uplink.
  • the data transmission is performed by the DU2, and the status indication information is used to indicate that the UE reports the feedback information of the data unit sent by the received DU1 according to the transmission resource information.
  • the UE After receiving the transmission resource information, the UE sends feedback information of the data unit transmitted by the DU1 but not sent, the feedback information sent to the DU1 last time, and/or the feedback information of the data unit sent by the subsequent DU2 through the port number.
  • the port and/or uplink transmission resource information is sent to the DU2.
  • the DU2 After receiving the feedback information sent by the UE, the DU2 determines that the connection between the DU2 and the UE is successfully established. In this possible implementation, S516 is performed after S510.
  • the CU sends to the DU2 a data unit in which the DU1 does not receive the feedback information of the UE and/or a data unit in which the DU1 is not transmitted to the UE.
  • the DU2 sends the foregoing data unit to the UE.
  • the UE After receiving the data unit, the UE sends feedback information to the DU2.
  • the DU2 receives the feedback information sent by the UE, and determines that the connection between the DU2 and the UE is successfully established. In this possible implementation, S516 is performed after S514.
  • S518 The CU sends a link release indication information to the DU1.
  • the link release indication information is used to instruct the DU1 to delete configuration information and/or data transmission status information of the UE.
  • S520 The DU1 deletes configuration information and/or data transmission status information of the UE.
  • the CU sends an acknowledgment message to the CU, so that the CU learns that the connection between the UE and the UE is successfully established, thereby instructing the DU1 to delete the configuration information and/or the data transmission status information of the UE.
  • the network device may perform some or all of the steps in the above embodiments, and the steps or operations are merely examples, and the present application may also perform other operations or variations of various operations. Further, the various steps may be performed in a different order as presented in the above embodiments, and it is possible that not all of the operations in the above embodiments are performed.
  • FIG. 7 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 7 is based on the method embodiment shown in FIG. 5 or FIG. 6 , and further includes S 522.
  • the DU1 sends a timer suspension indication message to the UE.
  • the timer suspension indication information is used to instruct the UE to suspend its data transmission timer.
  • the data transmission timer may be a reordering timer of the RLC or the MAC, or may be a HARQ RTT timer.
  • the timer suspension indication information may further include a port number, configured to instruct the UE to listen to the port corresponding to the port number, and restart the timer after the port receives the data.
  • the execution sequence of S522 is performed after S502, and the application is not limited thereto.
  • the timer suspension indication information is sent to the UE through the DU1, so that the UE suspends its data transmission timer.
  • FIG. 8 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 8 is different from FIG. 5 to FIG. 7 in that, in any of the embodiments shown in FIG. 5 to FIG. 7, the data transmission state is sent to the CU through the DU1. Information, the CU then forwards the data transmission status information to the DU2, so that the DU2 obtains the data transmission status information.
  • the data transmission status information is directly transmitted to the DU2 through the DU1 so that the DU2 obtains the data transmission status information. That is, S504 and S506 in Figs. 5 to 7 are replaced by S504' in Fig. 7, and S504': DU1 transmits data transmission state information to DU2.
  • FIG. 9 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 9 is applied to the scenario shown in FIG. 2, and FIG. 9 is different from the embodiment shown in FIG. 5 to FIG. 8.
  • the CU is equivalent to the CU1 in FIG.
  • the communication between the CU and the DU2 is forwarded through the CU2.
  • the remaining steps are similar, as described in detail in FIG. 5 to FIG. 8 , and details are not described herein again.
  • FIG. 10 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 10 is applied to the embodiment shown in FIG. 3 or the scenario shown in FIG. 4, and the flow is as follows:
  • the first network device determines to switch from the first network device to the second network device according to the measurement report, or determines to migrate the bearer under the first network device to the second network device.
  • the bearer of the first network device is migrated to the second network device. It can be understood that part of the bearer under the first network device is migrated to the second network device.
  • the UE measures channel quality with the first network device and the second network device, and obtains a measurement report.
  • the measurement report is reported to the first network device.
  • the first network device determines, according to the measurement report, whether the UE switches from the first network device to the second network device, or determines to migrate the bearer under the first network device to the second network device. If yes, execute S1002.
  • the first network device and the second network device respectively measure channel quality with the UE, and obtain a measurement report.
  • the second network device will report the measurement report to the first network device.
  • the first network device determines, according to the measurement report, whether the UE switches from the first network device to the second network device, or determines to migrate the bearer under the first network device to the second network device. If it is determined to switch from the first network device to the second network device, or to determine to migrate the bearer under the first network device to the second network device, then perform S1002.
  • the first network device sends the foregoing data transmission status information to the second network device.
  • the second network device is caused to obtain data transmission status information between the first network device and the UE.
  • the data transmission status information may be used to indicate data transmission status information of the radio link control and/or the medium access control protocol stack in the first network device.
  • the data transmission status information includes, but is not limited to, at least one of the following: information that the first network device sends to the UE but does not receive the feedback information of the UE; the data unit that is not sent by the first network device to the UE information.
  • the data unit is a PDU or an SDU.
  • the information that the first network device does not send to the data unit of the UE includes, but is not limited to, sequence information of the untransmitted data unit.
  • the information of the data unit that the first network device sends to the UE but does not receive the feedback information of the UE includes, but is not limited to, at least one of the following: sequence information of the data unit that has not received the feedback information that has been sent, The data transmission timer, the time information of the HARQ process, the data unit transmission confirmation information of the HARQ process, the acknowledgement information of the data unit, the maximum transmission state variable, the maximum reception state variable, the transmission state variable, the reception state variable, and the transmission window.
  • the data transmission timer may be a reordering timer of the RLC or the MAC, or may be a HARQ RTT timer.
  • the first network device sends configuration information of the UE to the second network device.
  • the configuration information of the UE includes at least one of the following configuration parameters: a control plane configuration parameter and a user plane configuration parameter.
  • the control plane configuration parameter includes a configuration parameter of a function of the RRC protocol stack; the user control plane configuration parameter includes a configuration parameter of a function of the RRC protocol stack; and the user plane configuration parameter includes a protocol stack such as a PDCP, an RLC, and a MAC. At least one of the configuration parameters of the function.
  • the second network device establishes a control plane entity and/or a user plane entity of the UE according to the data transmission state information and/or the configuration information of the UE.
  • the first network device sends, to the second network device, a data unit that has not received the feedback information that has been sent by the first network device, and/or an untransmitted data unit.
  • the second network device performs data transmission with the UE.
  • the second network device sends, to the UE, the data unit that has not received the feedback information that has been sent by the first network device, and/or the untransmitted data unit.
  • the first network device sends the data transmission status information and/or the configuration information of the UE to the second network device, so that the second network device obtains the configuration information of the UE and the first network that are the same as the first network device.
  • the second network device performs data transmission with the UE according to the configuration information of the UE and/or the data transmission status information between the first network device and the UE.
  • the UE is switched from the first network device to the second network device, or the bearer of the UE under the first network device is migrated to the second network device, and in the process, the UE is not aware, and the continuity of data transmission is improved.
  • the network device may perform some or all of the steps in the above embodiments, and the steps or operations are merely examples, and the present application may also perform other operations or variations of various operations. Further, the various steps may be performed in a different order as presented in the above embodiments, and it is possible that not all of the operations in the above embodiments are performed.
  • FIG. 11 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 11 is based on the method embodiment shown in FIG. 10, and further includes:
  • S1012 The second network device sends the acknowledgement information to the first network device.
  • the confirmation message is used to indicate that the connection between the second network device and the UE is successfully established.
  • the first network device sends the transmission resource information and/or the status report indication information to the UE, where the transmission resource information includes the port number and/or the uplink transmission resource information, and is used to indicate that the UE sends the port corresponding to the port number and/or the uplink.
  • the resource information is transmitted with the second network device, where the status report indication information is used to instruct the UE to report the feedback information of the data unit sent by the first network device that has been received according to the transmission resource information.
  • the UE After receiving the transmission resource information, the UE sends the unsent feedback information of the data unit sent by the first network device that has been received or the feedback information sent to the first network device last time, and/or the data sent by the subsequent second network device.
  • the feedback information of the unit is sent to the second network device by using the port corresponding to the port number and/or the uplink sending resource information. After receiving the feedback information sent by the UE, the second network device determines that the connection between the second network device and the UE is successfully established.
  • the first network device sends, to the second network device, a data unit that does not receive the feedback information of the UE by the first network device and/or a data unit that is not sent by the first network device to the UE.
  • the second network device sends the foregoing data unit to the UE. After receiving the data unit, the UE sends feedback information to the second network device, and the second network device receives the feedback information sent by the UE, and determines that the second network device and the UE are successfully established. .
  • S1014 The second network device sends link release indication information to the first network device.
  • the link release indication information is used to instruct the first network device to delete configuration information and/or data transmission status information of the UE.
  • S1016 The first network device deletes configuration information and/or data transmission status information of the UE.
  • the second network device sends the acknowledgement information to the first network device to indicate that the second network device and the UE are successfully established, and the second network device sends the link release indication information to the first network device to indicate the first
  • the network device deletes configuration information and/or data transmission status information of the UE.
  • FIG. 12 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 12 is based on the method embodiment shown in FIG. 10 or FIG. 11 , and further includes S1018, which is illustrated by FIG. 10 .
  • the first network device sends a timer suspension indication message to the UE.
  • the timer suspension indication information is used to instruct the UE to suspend its data transmission timer.
  • the data transmission timer may be a reordering timer of the RLC or the MAC, or may be a HARQ RTT timer.
  • the timer suspension indication information may further include a port number, configured to instruct the UE to listen to the port corresponding to the port number, and restart the timer after the port receives the data.
  • the execution order of S1018 is performed after S1012, and the application does not limit this.
  • the timer suspension indication information is sent to the UE by the first network device, so that the UE suspends its data transmission timer.
  • FIG. 13 is a schematic flowchart of still another communication method provided by the present application.
  • FIG. 13 is applied to a scenario of multiple connections. The steps in this embodiment are as follows:
  • S1301 The CU acquires data transmission status information sent by the DU1.
  • the DU1 periodically feeds back the data transmission status information to the CU. Therefore, the CU can periodically acquire the data transmission status information of the DU1.
  • the CU performs a handover decision to determine to increase the data transmission between the DU2 and the UE, and then sends a data transmission status report indication indication to the DU1, and the CU receives the data transmission status information sent by the DU1.
  • the CU determines to increase the data transmission between the DU2 and the UE according to the measurement report, and sends a data transmission status report indication indication to the DU1, and the CU receives the data transmission status information sent by the DU1.
  • S1302 The CU configures configuration information of the UE for the DU2.
  • the CU can be configured to configure the configuration information of the UE by using the RRC message.
  • the UE configuration information configured by the CU in the DU2 may be the same as or different from the UE configuration information configured in the DU1.
  • the execution order of S1101 and S1102 is not limited.
  • S1303 The CU sends configuration information to the UE.
  • the CU may send configuration information of the UE by using an RRC message.
  • the configuration information may include transmission resource information configured to the UE.
  • the transmission resource information includes a port number, and is used to instruct the UE to receive data sent by the DU2 corresponding to the port number.
  • DU2 and DU1 can transmit different Channel State Information-Reference Signals (CSI-RS) or other port signals for the UE to distinguish data of different ports.
  • CSI-RS Channel State Information-Reference Signals
  • S1304 The UE establishes a layer 2 or layer 1 entity corresponding to the port number according to the configuration information, and performs data transmission on the port corresponding to the port number.
  • the timing between the TRPs is preferentially less than one CP. Therefore, after the UE receives the layer 2 or layer 1 parameters, the default UE and the TRP of the DU2 are The Time Advanced (TA) is 0 or the same as TA1 between the UE and the TPR of the DU1, and the acquisition process of the TA is not required.
  • TA Time Advanced
  • FIG. 14 is a schematic structural diagram of a network device provided by the present application.
  • the network device 1400 includes: a processor 1401, a memory 1402, and a communication port 1403.
  • the communication port may be a receiver or a transmitter.
  • the network device 1400 provides an air interface for the UE, and the network device 1400 can interact with other network devices.
  • the network device 1400 includes a processor 1401, a memory 1402, and a communication port 1403.
  • the processor 1401, the memory 1402, and the communication port 1403 all pass through the bus.
  • the storage 1402 stores the computer execution instructions; the processor 1403 executes the memory stored computer execution instructions, so that the network device performs data interaction with the other network devices and the UE through the communication port 1403 to perform any of the above-mentioned FIGS.
  • the communication method of the embodiment is described in accordance with the UE, and the network device 1400 can interact with other network devices.
  • the network device 1400 includes a processor 1401, a memory 1402, and a communication port 1403.
  • the processor 1401, the memory 1402, and the communication port 1403 all pass through the bus.
  • the storage 1402 stores the computer execution instructions; the processor 1403 executes the memory stored computer execution instructions, so that the network device performs data interaction with the other network devices
  • the network device 1500 includes: a processor 1501, a memory 1502, and a communication port 1503.
  • the communication port may be a receiver or a transmitter.
  • the network device 1500 provides an air interface for the UE, and the network device 1500 can interact with other network devices.
  • the network device 1500 includes a processor 1501, a memory 1502, and a communication port 1503.
  • the processor 1501, the memory 1502, and the communication port 1503 all pass through the bus. Connected; the memory 1502 stores computer execution instructions; the processor 1503 executes the memory stored computer execution instructions to cause the network device to perform data interaction with other network devices and the UE through the communication port 1503 to perform any of the above-described FIGS.
  • the communication method of the embodiment is described in the communication method of the embodiment.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Landscapes

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

Abstract

本申请提供一种通信方法和网络设备，通过CU向DU1发送数据传输状态上报指示信息，指示DU1上报与UE之间的数据传输状态信息。CU向DU2发送UE的配置信息以及DU1上报的与UE之间的数据传输状态信息。从而，实现UE从DU1切换到DU2，或者，将UE在DU1下的承载迁移到DU2，而在此过程中UE无感知，提高数据传输的连续性。

Description

通信方法和网络设备
本申请要求于2017年01月06日提交中国专利局、申请号为201710010959.7、申请名称为“通信方法和网络设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术，尤其涉及一种通信方法和网络设备。
背景技术
随着无线通信技术的飞速发展，在长期演进(Long Term Evolution，简称：LTE)技术之后出现了新无线接入技术(New Radio Access Technology，简称：NR)。
在NR系统中，NR小区包括分布式架构和集中式架构，分布式架构包括一个集中式实体单元(Centralized Unit，简称：CU)和多个分布式实体单元(Distributed Unit，简称：DU)，其中，CU可以管理多个DU，UE在NR小区中移动时，可能会需要从一个DU切换到另一个DU，以便获得更好的数据传输服务；集中式架构和传统的LTE网络架构相似，NR基站管理用户设备(User Equipment，简称UE)的移动性，UE在NR小区移动时，可能会需要从一个NR基站切换到另一个NR基站，以便获得更好的数据传输服务。
在NR系统中，每个DU具有独立的无线链路控制(Radio Link Control，简称：RLC)层和/或媒体接入控制(Medium Access Control，简称：MAC)层，UE在NR小区内的移动就会带来DU间的切换，在DU切换的过程中，UE收到切换指示后，会断开和原DU的连接，重置UE侧的RLC层和/或MAC层，并根据切换指示，在目标DU接入成功后才能继续进行数据传输。在小区内的DU间的切换过程中，RLC层和/或MAC层复位会造成数据传输的中断，从而，影响数据传输的连续性。
发明内容
本申请提供一种通信方法和网络设备，以提高数据传输的连续性。
本申请第一方面提供一种通信方法，包括：
第二网络设备接收数据传输状态信息，其中，数据传输状态信息用于指示第一网络设备中无线链路控制协议栈和/或媒体接入控制协议栈的数据传输状态信息；从而，使得第二网络设备具有与第一网络设备相同的第一网络设备与UE之间的数据传输状态信息，进而第二网络设备可以根据数据传输状态信息与UE进行数据传输。在此过程中UE无感知，提高数据传输的连续性。
在一种可能的设计中，数据传输状态信息包含第一网络设备已发送的未收到反馈信息的数据单元的信息和/或未发送的数据单元的信息。
在一种可能的设计中，未发送的数据单元的信息包括：未发送的数据单元的序列信息；
已发送的未收到反馈信息的数据单元的信息包括下述至少一项：已发送的未收到反馈信息的数据单元的序列信息、数据传输定时器、混合自动重传请求HARQ进程的时间信息、HARQ进程的数据单元传输确认信息、数据单元的确认信息、最大发送状态变量、最大接收状态变量、发送状态变量、接收状态变量和传输窗口。
在一种可能的设计中，还包括：
第二网络设备接收UE的配置信息，UE的配置信息中至少包含下述一种配置参数：
控制面配置参数；
用户面配置参数。
在一种可能的设计中，还包括：
第二网络设备接收第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
在一种可能的设计中，接收第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元，包括：
第二网络设备接收第三网络设备发送的第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元；
或者，
第二网络设备接收第一网络设备发送的第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
在一种可能的设计中，还包括：
第二网络设备发送确认信息，确认消息用于指示第二网络设备和UE连接建立成功。
在一种可能的设计中，第二网络设备发送确认信息，包括：
第二网络设备向第一网络设备发送确认信息；
在一种可能的设计中，第二网络设备发送确认信息，包括：
第二网络设备向第三网络设备发送确认信息。
在一种可能的设计中，第二网络设备向第一网络设备发送确认信息之后，还包括：
第二网络设备向第一网络设备发送链路释放指示信息，链路释放指示信息用于指示第一网络设备删除UE的配置信息和/或数据传输状态信息。
在一种可能的设计中，第二网络设备接收数据传输状态信息，包括：
第二网络设备接收第一网络设备发送的数据传输状态信息；
或者，
第二网络设备接收第一网络设备通过第三网络设备发送的数据传输状态信息；
或者，
第二网络设备接收UE发送的数据传输状态信息。
在一种可能的设计中，第二网络设备接收UE的配置信息，包括：
第二网络设备接收第一网络设备发送的UE的配置信息；
或者，
第二网络设备接收第一网络设备通过第三网络设备发送的UE的配置信息；
或者，
第二网络设备接收第三网络设备发送的UE的配置信息。
本申请第二方面提供一种通信方法，包括：
第一网络设备获取数据传输状态信息，其中，数据传输状态信息用于指示第一网络设备中无线链路控制协议栈和/或媒体接入控制协议栈的数据传输状态信息；第一网络设备发送数据传输状态信息。从而，使得第二网络设备具有与第一网络设备相同的第一网络设备与UE之间的数据传输状态信息，进而第二网络设备可以根据数据传输状态信息与UE进行数据传输。在此过程中UE无感知，提高数据传输的连续性。
在一种可能的设计中，数据传输状态信息包含第一网络设备已发送的未收到反馈信息的数据单元的信息和/或未发送的数据单元的信息。
在一种可能的设计中，未发送的数据单元的信息包括：未发送的数据单元的序列信息；
已发送的未收到反馈信息的数据单元的信息包括下述至少一项：已发送的未收到反馈信息的数据单元的序列信息、数据传输定时器、混合自动重传请求HARQ进程的时间信息、HARQ进程的数据单元传输确认信息、数据单元的确认信息、最大发送状态变量、最大接收状态变量、发送状态变量、接收状态变量和传输窗口。
在一种可能的设计中，第一网络设备发送数据传输状态信息，包括：
第一网络设备向第二网络设备发送数据传输状态信息。
在一种可能的设计中，第一网络设备发送数据传输状态信息，包括：
第一网络设备通过第三网络设备向第二网络设备发送数据传输状态信息。
在一种可能的设计中，第一网络设备通过第三网络设备向第二网络设备发送数据传输状态信息之前，还包括：
第一网络设备接收第三网络设备发送的数据传输状态上报指示信息。
在一种可能的设计中，还包括：
第一网络设备向用户设备UE发送传输资源信息，传输资源信息包含端口号和/或上行发送资源信息，用于指示UE通过端口号对应的端口和/或上行发送资源信息与第二网络设备进行数据传输。
在一种可能的设计中，还包括：
第一网络设备向UE发送定时器挂起指示信息，定时器挂起指示信息用于指示UE暂停其数据传输定时器。
在一种可能的设计中，定时器挂起指示信息中还包括端口号，用于指示UE监听端口号对应的端口，在端口接收到数据单元后重启定时器。
在一种可能的设计中，还包括：
第一网络设备接收链路释放指示信息，链路释放指示信息用于指示第一网络设备删除UE的配置信息和/或数据传输状态信息。
在一种可能的设计中，第一网络设备接收链路释放指示信息，包括：
第一网络设备接收第二网络设备发送的链路释放指示信息；
或者，
第一网络设备接收第三网络设备发送的链路释放指示信息。
本申请第三方面提供一种网络设备，包括：
网络设备为用户设备UE提供空口，且网络设备可与其他网络设备进行交互，网络设备包括处理器、存储器和通信端口，处理器、存储器和通信端口均通过总线连接；存储器 存储计算机执行指令；处理器执行存储器存储的计算机执行指令，使得网络设备通过通信端口与其他网络设备和UE之间进行数据交互来执行上述第一方面或第一方面的任一种可能的设计中的通信方法。
本申请第四方面提供一种网络设备，包括：
网络设备为用户设备UE提供空口，且网络设备可与其他网络设备进行交互，网络设备包括处理器、存储器和通信端口，处理器、存储器和通信端口均通过总线连接；存储器存储计算机执行指令；处理器执行存储器存储的计算机执行指令，使得网络设备通过通信端口与其他网络设备和UE之间进行数据交互来执行上述第二方面或第二方面的任一种可能的设计中的通信方法。
附图说明
图1为本申请提供的一种场景示意图；
图2为本申请提供的另一场景示意图；
图3为本申请提供的再一种场景示意图；
图4为本申请提供的又一种场景示意图；
图5为本申请提供的一种通信方法的流程示意图；
图6为本申请提供的另一种通信方法的流程示意图；
图7为本申请提供的再一种通信方法的流程示意图；
图8为本申请提供的又一种通信方法的流程示意图；
图9为本申请提供的又一种通信方法的流程示意图；
图10为本申请提供的又一种通信方法的流程示意图；
图11为本申请提供的又一种通信方法的流程示意图；
图12为本申请提供的又一种通信方法的流程示意图；
图13为本申请提供的又一种通信方法的流程示意图；
图14为本申请提供的一个网络设备的结构示意图；
图15为本申请提供的一个网络设备的结构示意图。
具体实施方式
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。本申请中术语“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。
应理解，本申请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，简称：GSM)系统、码分多址(Code Division Multiple  Access，简称：CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，简称：WCDMA)系统、通用分组无线业务(General Packet Radio Service，简称：GPRS)、长期演进(Long Term Evolution，简称：LTE)系统、先进的长期演进(Advanced long term evolution，简称：LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，简称：UMTS)或5G等。
还应理解，在本申请中，用户设备(User Equipment，简称：UE)包括但不限于移动台(Mobile Station，简称：MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)或便携设备(portable equipment)等，该用户设备可以经无线接入网(Radio Access Network，简称：RAN)与一个或多个核心网进行通信。例如，用户设备可以是移动电话(或称为“蜂窝”电话)或具有无线通信功能的计算机等，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
应理解，本申请对网络设备的具体类型不作限定，例如，可以是普通的基站(如NodeB或eNB)，可以是射频拉远模块，可以是微基站(pico)，可以是中继(relay)，可以是集中式网元(Centralized Unit，简称：CU)，可以是分布式网元(Distributed Unit，简称：DU)，可以是传输点(Tra nsmission Point，简称：TP)或传输接收点(Transmission Reception Point，简称：TRP)，可以是DU和TP，或者任何其它无线接入设备。本申请中，网络设备可以具有无线资源控制(Radio Resource Control，RRC)协议栈功能和/或全部或部分层二协议栈功能，或者网络设备可以具有RRC协议栈功能和/或全部或部分层二协议栈以及物理层协议栈功能。其中，层二协议栈的功能可以包括：分组数据汇聚协议(Packet Data Convergence Protocol，简称：PDCP)、RLC、MAC中的功能的至少一种。即，层二协议栈可以为PDCP，或RLC，或MAC，或PDCP和RLC，或PDCP和MAC，或RLC和MAC，或PDCP和RLC和MAC中的功能的一种。比如，CU是具有RRC和/或PDCP功能的网络设备，DU是至少具有RLC/MAC协议栈功能的网络设备，基站是具有RRC、PDCP、RLC、MAC和/或PHY协议栈功能的网络设备；CU，DU，基站只是一种示例性的名称，并不限于这种名称。
本申请中，以网络设备为CU或DU为例，并不限于这种叫法。
图1为本申请提供的一种场景示意图，如图1所示，该场景中包含CU、DU和TRP，图1中示出两个DU，分别为DU1和DU2，CU管理DU1和DU2，每个DU管理多个TRP，图1中以每个DU管理3个TRP为例示出，每个TRP具有多个波束。
图2为本申请提供的另一场景示意图，如图2所示，与图1所示场景不同的是图2所示的场景中包含两个CU，分别为CU1和CU2，其中，CU1管理DU1，CU2管理DU2。
图3为本申请提供的再一种场景示意图，如图3所示，图3是在图1所示实施例的基础上，CU的功能和DU1的功能部署在同一网络设备(比如基站)中。
图4为本申请提供的又一种场景示意图，如图4所示，图4是在图2所示实施例的基础上，CU1的功能和DU1的功能部署在同一网络设备中，比如基站1中，CU2的功能和DU2的功能部署在同一网络设备中，比如基站2中。
下面以具体地实施例对技术方案进行详细说明。下面这几个具体的实施例可以相 互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图5为本申请提供的一种通信方法的流程示意图，如图5所示，本实施例应用于图1所示场景，在本实施中，第一网络设备以DU1为例，第二网络设备以DU2为例，第三网络设备以CU为例，本实施例的方法如下：
S500：CU根据测量报告，确定从DU1切换到DU2，或者确定把DU1下的承载迁移到DU2。
把DU1下的承载迁移到DU2，可以是把DU1下的部分承载迁移到DU2；
其中，一种可能的实现方式：
UE测量与DU1和DU2之间的信道质量，获取测量报告。将测量报告上报给CU。CU根据测量报告，确定UE是否从DU1切换到DU2，或者确定是否把DU1下的承载迁移到DU2。若确定从DU1切换到DU2，或者确定把DU1下的承载迁移到DU2，则执行S502。
另一种可能的实现方式：
DU1和DU2分别测量与UE之间的信道质量，获取测量报告。DU1和DU2分别将测量报告上报给CU。CU根据测量报告，确定UE是否从DU1切换到DU2，或者确定是否把DU1下的承载迁移到DU2。若确定从DU1切换到DU2，或者确定把DU1下的承载迁移到DU2，则执行S502。
S502：CU向DU1发送数据传输状态上报指示信息。
其中，数据传输状态上报指示信息用于指示DU1上报与UE之间的数据传输状态。
可选地，数据传输状态信息用于指示DU1中无线链路控制和/或媒体接入控制协议栈的数据传输状态信息。数据传输状态信息包括但不限于下述至少一种：DU1向UE已发送但未收到UE的反馈信息的数据单元的信息；DU1未发送给UE的数据单元的信息。其中，数据单元为协议数据单元(Protocol Data Unit，简称：PDU)或者服务数据单元(Service Data Unit，简称：SDU)。
可选地，DU1未发送给UE的数据单元的信息包括但不限于：未发送的数据单元的序列信息。
可选地，DU1向UE已发送但未收到UE的反馈信息的数据单元的信息包括但不限于下述至少一项：已发送的未收到反馈信息的数据单元的序列信息、数据传输定时器、混合自动重传请求(Hybrid Automatic Repeat Request，简称：HARQ)进程的时间信息、HARQ进程的数据单元传输确认信息、数据单元的确认信息、最大发送状态变量、最大接收状态变量、发送状态变量、接收状态变量和传输窗口。
可选地，数据传输定时器可以是RLC或MAC的重排序定时器，还可以是HARQ往返时间(Round Trip Time，RTT)定时器。
S504：DU1向CU发送数据传输状态信息。
从而，使得CU获得DU1和UE之间的数据传输状态信息。
S506：CU向DU2发送上述数据传输状态信息。
从而，使得DU2获得DU1与UE之间的数据传输状态信息。
S508：CU向DU2发送UE的配置信息。
其中，UE的配置信息中至少包含下述一种配置参数：控制面配置参数；用户面配置 参数。
其中，所述控制面配置参数包括RRC协议栈的功能的配置参数；所述用户面配置参数包括PDCP、RLC和MAC等协议栈的功能的配置参数的至少一种。
可选地，S508与S502～S506的执行顺序不作限制，S508可以是在S502～S506之前执行，也可以在S502～S506之后执行，也可以在S502～S506的任两个步骤之间执行，对此，本申请不作限制。
S510：DU2根据数据传输状态信息和/或UE的配置信息，建立UE的控制面实体和/或用户面实体。
S512：CU向DU2发送DU1已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
S514：DU2与UE进行数据传输。
DU2向UE发送上述DU1已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
本实施例，通过CU向DU1发送数据传输状态上报指示信息，指示DU1上报与UE之间的数据传输状态信息。CU向DU2发送UE的配置信息以及DU1上报的与UE之间的数据传输状态信息。从而，使得DU2获得与DU1相同的UE的配置信息和DU1与UE之间的数据传输状态信息。DU2根据UE的配置信息和DU1与UE之间的数据传输状态信息，与UE进行数据传输。从而，实现UE从DU1切换到DU2，或者，将UE在DU1下的承载迁移到DU2，而在此过程中UE无感知，提高数据传输的连续性。
可以理解的，网络设备可以执行上述实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照上述实施例呈现的不同的顺序来执行，并且有可能并非要执行上述实施例中的全部操作。
图6为本申请提供的另一种通信方法的流程示意图，图6是在图5所示方法实施例的基础上，进一步，还可以包括：
S516：DU2向CU发送确认消息。
其中，确认消息用于指示DU2和UE连接建立成功。
确定DU2和UE连接建立成功的方式包括但不限于如下几种可能的实现方式：
一种可能的实现方式为：
CU向DU1发送UE与DU2之间的传输资源信息。DU1向UE发送传输资源信息和/或状态上报指示信息，其中，传输资源信息中包含端口号和/或上行发送资源信息，用于指示UE通过端口号对应的端口和/或上行发送资源信息与DU2进行数据传输；其中状态上报指示信息，用于指示UE根据传输资源信息上报已接收到的DU1发送的数据单元的反馈信息。UE接收到传输资源信息后，对已经接收到的DU1发送的数据单元但未发送的反馈信息、上一次发送给DU1的反馈信息，和/或后续DU2发送的数据单元的反馈信息通过端口号对应的端口和/或上行发送资源信息向DU2发送。DU2收到UE发送的反馈信息，则确定DU2和UE连接建立成功。在这种可能的实现方式中，S516在S510之后执行。
另一种可能的实现方式为：
CU向DU2发送DU1未收到UE的反馈信息的数据单元和/或DU1未发送给UE的数据单元。DU2向UE发送上述数据单元，UE接收到数据单元之后，向DU2发送反馈信息，DU2收到UE发送的反馈信息，则确定DU2和UE连接建立成功。在这种可能的实现方式中，S516在S514之后执行。
S518：CU向DU1发送链路释放指示信息。
其中，链路释放指示信息用于指示DU1删除UE的配置信息和/或数据传输状态信息。
S520：DU1删除UE的配置信息和/或数据传输状态信息。
本实施例，通过DU2向CU发送确认消息，以使得CU获知DU2和UE连接建立成功，从而，指示DU1删除UE的配置信息和/或数据传输状态信息。
可以理解的，网络设备可以执行上述实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照上述实施例呈现的不同的顺序来执行，并且有可能并非要执行上述实施例中的全部操作。
图7为本申请提供的再一种通信方法的流程示意图，图7是在图5或图6所示方法实施例的基础上，进一步，还包括S522，以图5为例示出：
S522：DU1向UE发送定时器挂起指示信息。
其中，定时器挂起指示信息用于指示UE暂停其数据传输定时器。
可选地，数据传输定时器可以是RLC或MAC的重排序定时器，还可以是HARQ RTT定时器。
可选地，定时器挂起指示信息中还可以包括端口号，用于指示UE监听该端口号对应的端口，在该端口接收到数据后重启定时器。
S522的执行顺序在S502之后执行，对此，本申请不做限制。
本实施例，通过DU1向UE发送定时器挂起指示信息，以使UE暂停其数据传输定时器。
图8为本申请提供的又一种通信方法的流程示意图，图8与图5～图7不同的是，在图5～图7所示任一实施例中，通过DU1向CU发送数据传输状态信息，CU再向DU2转发数据传输状态信息，使得DU2得到数据传输状态信息。在图7所示实施例中，通过DU1直接向DU2发送数据传输状态信息使得DU2得到数据传输状态信息。即：图5～图7中的S504和S506，由图7中的S504’替代，S504’：DU1向DU2发送数据传输状态信息。
图9为本申请提供的又一种通信方法的流程示意图，图9应用于图2所示场景，图9与图5～图8所示实施例不同的，CU相当于图9中的CU1，CU与DU2之间的通信，均通过CU2进行转发。其余步骤类似，参见图5～图8中的详细描述，此处不再赘述。
图10为本申请提供的又一种通信方法的流程示意图，图10应用于图3所示实施例或图4所示场景中，其流程如下所示：
S1000：第一网络设备根据测量报告，确定从第一网络设备切换到第二网络设备，或者确定把第一网络设备下的承载迁移到第二网络设备。
把第一网络设备下的承载迁移到第二网络设备，可以理解地，可以是第一网络设备下的部分承载迁移到第二网络设备；
其中，一种可能的实现方式：
UE测量与第一网络设备和第二网络设备之间的信道质量，获取测量报告。将测量报告上报给第一网络设备。第一网络设备根据测量报告，确定UE是否从第一网络设备切换到第二网络设备，或者确定把第一网络设备下的承载迁移到第二网络设备。若是，则执行S1002。
另一种可能的实现方式：
第一网络设备和第二网络设备分别测量与UE之间的信道质量，获取测量报告。第二网络设备将将测量报告上报给第一网络设备。第一网络设备根据测量报告，确定UE是否从第一网络设备切换到第二网络设备，或者确定把第一网络设备下的承载迁移到第二网络设备。若确定从第一网络设备切换到第二网络设备，或者确定把第一网络设备下的承载迁移到第二网络设备，则执行S1002。
S1002：第一网络设备向第二网络设备发送上述数据传输状态信息。
从而，使得第二网络设备获得第一网络设备与UE之间的数据传输状态信息。
可选地，数据传输状态信息可以用于指示第一网络设备中无线链路控制和/或媒体接入控制协议栈的数据传输状态信息。
其中，数据传输状态信息包括但不限于下述至少一种：第一网络设备向UE已发送但未收到UE的反馈信息的数据单元的信息；第一网络设备未发送给UE的数据单元的信息。其中，数据单元为PDU或者SDU。
可选地，第一网络设备未发送给UE的数据单元的信息包括但不限于：未发送的数据单元的序列信息。
可选地，第一网络设备向UE已发送但未收到UE的反馈信息的数据单元的信息包括但不限于下述至少一项：已发送的未收到反馈信息的数据单元的序列信息、数据传输定时器、HARQ进程的时间信息、HARQ进程的数据单元传输确认信息、数据单元的确认信息、最大发送状态变量、最大接收状态变量、发送状态变量、接收状态变量和传输窗口。
可选地，数据传输定时器可以是RLC或MAC的重排序定时器，还可以是HARQ RTT定时器。
S1004：第一网络设备向第二网络设备发送UE的配置信息。
其中，UE的配置信息中至少包含下述一种配置参数：控制面配置参数；用户面配置参数。
其中，控制面配置参数包括RRC协议栈的功能的配置参数；所述用户控制面配置参数包括无线资源控制协议栈的功能的配置参数；所述用户面配置参数包括PDCP、RLC和MAC等协议栈的功能的配置参数的至少一种。
S1006：第二网络设备根据数据传输状态信息和/或UE的配置信息，建立UE的控制面实体和/或用户面实体。
S1008：第一网络设备向第二网络设备发送第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
S1010：第二网络设备与UE进行数据传输。
第二网络设备向UE发送上述第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
本实施例，通过第一网络设备向第二网络设备发送数据传输状态信息和/或UE的配置信息，从而，使得第二网络设备获得与第一网络设备相同的UE的配置信息和第一网络设备与UE之间的数据传输状态信息。第二网络设备根据UE的配置信息和/或第一网络设备与UE之间的数据传输状态信息，与UE进行数据传输。从而，实现UE从第一网络设备切换到第二网络设备，或者把UE在第一网络设备下的承载迁移到第二网络设备，而在此过程中UE无感知，提高数据传输的连续性。
可以理解的，网络设备可以执行上述实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照上述实施例呈现的不同的顺序来执行，并且有可能并非要执行上述实施例中的全部操作。
图11为本申请提供的又一种通信方法的流程示意图，图11是在图10所示方法实施例的基础上，进一步，还可以包括：
S1012：第二网络设备向第一网络设备发送确认信息。
其中，确认消息用于指示第二网络设备和UE连接建立成功。
一种可能的实现方式为：
第一网络设备向UE发送传输资源信息和/或状态上报指示信息，其中，传输资源信息中包含端口号和/或上行发送资源信息，用于指示UE通过端口号对应的端口和/或上行发送资源信息与第二网络设备进行数据传输，其中状态上报指示信息，用于指示UE根据传输资源信息上报已接收到的第一网络设备发送的数据单元的反馈信息。UE接收到传输资源信息后，对已经接收到的第一网络设备发送的数据单元的未发送反馈信息或上一次发送给第一网络设备的反馈信息，和/或后续第二网络设备发送的数据单元的反馈信息通过端口号对应的端口和/或上行发送资源信息向第二网络设备发送。第二网络设备收到UE发送的反馈信息，则确定第二网络设备和UE连接建立成功。
另一种可能的实现方式为：
第一网络设备向第二网络设备发送第一网络设备未收到UE的反馈信息的数据单元和/或第一网络设备未发送给UE的数据单元。第二网络设备向UE发送上述数据单元，UE接收到数据单元之后，向第二网络设备发送反馈信息，第二网络设备收到UE发送的反馈信息，则确定第二网络设备和UE连接建立成功。
S1014：第二网络设备向第一网络设备发送链路释放指示信息。
其中，链路释放指示信息用于指示第一网络设备删除UE的配置信息和/或数据传输状态信息。
S1016：第一网络设备删除UE的配置信息和/或数据传输状态信息。
本实施例，通过第二网络设备向第一网络设备发送确认信息，以指示第二网络设备和UE连接建立成功，第二网络设备向第一网络设备发送链路释放指示信息，以指示第一网络设备删除UE的配置信息和/或数据传输状态信息。
图12为本申请提供的又一种通信方法的流程示意图，图12是在图10或图11所 示方法实施例的基础上，进一步，还包括S1018，以图10为例示出：
S1018：第一网络设备向UE发送定时器挂起指示信息。
其中，定时器挂起指示信息用于指示UE暂停其数据传输定时器。
可选地，数据传输定时器可以是RLC或MAC的重排序定时器，还可以是HARQ RTT定时器。可选地，定时器挂起指示信息中还可以包括端口号，用于指示UE监听该端口号对应的端口，在该端口接收到数据后重启定时器。
S1018的执行顺序在S1012之后执行，对此，本申请不做限制。
本实施例，通过第一网络设备向UE发送定时器挂起指示信息，以使UE暂停其数据传输定时器。
图13为本申请提供的又一种通信方法的流程示意图，图13应用于多连接的场景中，本实施例的步骤如下：
S1301：CU获取DU1发送的数据传输状态信息。
其中，一种可能的实现方式为：
DU1周期性的向CU反馈数据传输状态信息，因此，CU可以周期性的获取到DU1的数据传输状态信息。
另一种可能的实现方式为：
CU进行切换判决，确定增加DU2与UE之间的数据传输，则向DU1发送数据传输状态上报指示指示，CU接收DU1发送的数据传输状态信息。
又一种可能的实现方式为：
CU根据测量报告，确定增加DU2与UE之间的数据传输，则向DU1发送数据传输状态上报指示指示，CU接收DU1发送的数据传输状态信息。
S1302：CU为DU2配置UE的配置信息。
其中，CU可以通过RRC消息配置为DU2配置UE的配置信息。
可选地，CU在DU2配置的UE配置信息可以和在DU1配置的UE配置信息相同，也可以不同。
其中，S1101和S1102的执行顺序不作限制。
S1303：CU向UE发送配置信息。
其中，CU可以通过RRC消息发送UE的配置信息。
进一步地，该配置信息中可以包括配置给UE的传输资源信息。
其中，传输资源信息中包含端口号，用于指示UE接收该端口号对应的DU2发送的数据。DU2和DU1可以发送不同的信道状态信息测量导频(Channel State Information-Reference Signals，简称：CSI-RS)或其它端口信号，用于UE区分不同的端口的数据。
S1304：UE根据上述配置信息，建立与端口号对应的层2或层1实体，与所述端口号对应的端口进行数据传输。
可选地，在上述实施例中，CU选择DU2的TRP时，会优先考虑TRP间的定时小于1个CP，因此，UE收到层2或层1参数后，默认UE和DU2的TRP间的时间提前量2(Time Advanced，TA)为0或者和UE和DU1的TPR间的TA1相同，不需要执行TA的获取过程。
图14为本申请提供的一个网络设备的结构示意图，如图14所示，该网络设备1400，包括：处理器1401、存储器1402和通信端口1403，通信端口可以是接收器或者发送器，
其中，网络设备1400为UE提供空口，且网络设备1400可与其他网络设备进行交互，网络设备1400包括处理器1401、存储器1402和通信端口1403，处理器1401、存储器1402和通信端口1403均通过总线连接；存储器1402存储计算机执行指令；处理器1403执行存储器存储的计算机执行指令，使得网络设备通过通信端口1403与其他网络设备和UE之间进行数据交互来执行上述图1-图13所示任一实施例的通信方法。
图15为本申请提供的一个网络设备的结构示意图，如图15所示，该网络设备1500，包括：处理器1501、存储器1502和通信端口1503，通信端口可以是接收器或者发送器，
其中，网络设备1500为UE提供空口，且网络设备1500可与其他网络设备进行交互，网络设备1500包括处理器1501、存储器1502和通信端口1503，处理器1501、存储器1502和通信端口1503均通过总线连接；存储器1502存储计算机执行指令；处理器1503执行存储器存储的计算机执行指令，使得网络设备通过通信端口1503与其他网络设备和UE之间进行数据交互来执行上述图1-图13所示任一实施例的通信方法。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、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 (25)

  1. 一种通信方法，其特征在于，包括：
    第二网络设备接收数据传输状态信息，其中，所述数据传输状态信息用于指示第一网络设备中无线链路控制协议栈和/或媒体接入控制协议栈的数据传输状态信息；
    所述第二网络设备根据所述数据传输状态信息与所述UE进行数据传输。
  2. 根据权利要求1所述的方法，其特征在于，所述数据传输状态信息包含第一网络设备已发送的未收到反馈信息的数据单元的信息和/或未发送的数据单元的信息。
  3. 根据权利要求2所述的方法，其特征在于，所述未发送的数据单元的信息包括：所述未发送的数据单元的序列信息；
    所述已发送的未收到反馈信息的数据单元的信息包括下述至少一项：所述已发送的未收到反馈信息的数据单元的序列信息、数据传输定时器、混合自动重传请求HARQ进程的时间信息、所述HARQ进程的数据单元传输确认信息、数据单元的确认信息、最大发送状态变量、最大接收状态变量、发送状态变量、接收状态变量和传输窗口。
  4. 根据权利要求2或3所述的方法，其特征在于，还包括：
    所述第二网络设备接收所述UE的配置信息，所述UE的配置信息中至少包含下述一种配置参数：
    控制面配置参数；
    用户面配置参数。
  5. 根据权利要求2-4任一项所述的方法，其特征在于，还包括：
    所述第二网络设备接收所述第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
  6. 根据权利要求5所述的方法，其特征在于，所述接收所述第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元，包括：
    所述第二网络设备接收第三网络设备发送的所述第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元；
    或者，
    所述第二网络设备接收所述第一网络设备发送的所述第一网络设备已发送的未收到反馈信息的数据单元和/或未发送的数据单元。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，还包括：
    所述第二网络设备发送确认信息，所述确认消息用于指示所述第二网络设备和所述UE连接建立成功。
  8. 根据权利要求7所述的方法，其特征在于，所述第二网络设备发送确认信息，包括：
    所述第二网络设备向所述第一网络设备发送所述确认信息；
  9. 根据权利要求7所述的方法，其特征在于，所述第二网络设备发送确认信息，包括：
    所述第二网络设备向第三网络设备发送所述确认信息。
  10. 根据权利要求8所述的方法，其特征在于，所述第二网络设备向第一网络设备发送所述确认信息之后，还包括：
    所述第二网络设备向所述第一网络设备发送链路释放指示信息，所述链路释放指示信息用于指示所述第一网络设备删除所述UE的配置信息和/或所述数据传输状态信息。
  11. 根据权利要求1-10任一项所述的方法，其特征在于，所述第二网络设备接收数据传输状态信息，包括：
    所述第二网络设备接收所述第一网络设备发送的所述数据传输状态信息；
    或者，
    所述第二网络设备接收所述第一网络设备通过第三网络设备发送的所述数据传输状态信息；
    或者，
    所述第二网络设备接收所述UE发送的所述数据传输状态信息。
  12. 根据权利要求4所述的方法，其特征在于，所述第二网络设备接收所述UE的配置信息，包括：
    所述第二网络设备接收所述第一网络设备发送的所述UE的配置信息；
    或者，
    所述第二网络设备接收所述第一网络设备通过第三网络设备发送的所述UE的配置信息；
    或者，
    所述第二网络设备接收所述第三网络设备发送的所述UE的配置信息。
  13. 一种通信方法，其特征在于，包括：
    第一网络设备获取数据传输状态信息，其中，所述数据传输状态信息用于指示第一网络设备中无线链路控制协议栈和/或媒体接入控制协议栈的数据传输状态信息；
    所述第一网络设备发送所述数据传输状态信息。
  14. 根据权利要求13所述的方法，其特征在于，所述数据传输状态信息包含第一网络设备已发送的未收到反馈信息的数据单元的信息和/或未发送的数据单元的信息。
  15. 根据权利要求14所述的方法，其特征在于，所述未发送的数据单元的信息包括：所述未发送的数据单元的序列信息；
    所述已发送的未收到反馈信息的数据单元的信息包括下述至少一项：所述已发送的未收到反馈信息的数据单元的序列信息、数据传输定时器、混合自动重传请求HARQ进程的时间信息、所述HARQ进程的数据单元传输确认信息、数据单元的确认信息、最大发送状态变量、最大接收状态变量、发送状态变量、接收状态变量和传输窗口。
  16. 根据权利要求13所述的方法，其特征在于，所述第一网络设备发送所述数据传输状态信息，包括：
    所述第一网络设备向第二网络设备发送所述数据传输状态信息。
  17. 根据权利要求13所述的方法，其特征在于，所述第一网络设备发送所述数据传输状态信息，包括：
    所述第一网络设备通过第三网络设备向第二网络设备发送所述数据传输状态信息。
  18. 根据权利要求17所述的方法，其特征在于，所述第一网络设备通过第三网络设备向第二网络设备发送所述数据传输状态信息之前，还包括：
    所述第一网络设备接收第三网络设备发送的数据传输状态上报指示信息。
  19. 根据权利要求13-18任一项所述的方法，其特征在于，还包括：
    所述第一网络设备向用户设备UE发送传输资源信息，所述传输资源信息包含端口号和/或上行发送资源信息，用于指示所述UE通过所述端口号对应的端口和/或所述上行发送资源信息与第二网络设备进行数据传输。
  20. 根据权利要求19所述的方法，其特征在于，还包括：
    所述第一网络设备向UE发送定时器挂起指示信息，所述定时器挂起指示信息用于指示所述UE暂停其数据传输定时器。
  21. 根据权利要求20所述的方法，其特征在于，所述定时器挂起指示信息中还包括端口号，用于指示所述UE监听所述端口号对应的端口，在所述端口接收到数据单元后重启所述定时器。
  22. 根据权利要求13-21任一项所述的方法，其特征在于，还包括：
    所述第一网络设备接收链路释放指示信息，所述链路释放指示信息用于指示所述第一网络设备删除所述UE的配置信息和/或所述数据传输状态信息。
  23. 根据权利要求22所述的方法，其特征在于，所述第一网络设备接收链路释放指示信息，包括：
    所述第一网络设备接收第二网络设备发送的所述链路释放指示信息；
    或者，
    所述第一网络设备接收第三网络设备发送的所述链路释放指示信息。
  24. 一种网络设备，其特征在于，包括：
    所述网络设备为用户设备UE提供空口，且所述网络设备可与其他网络设备进行交互，所述网络设备包括处理器、存储器和通信端口，所述处理器、所述存储器和所述通信端口均通过总线连接；所述存储器存储计算机执行指令；所述处理器执行所述存储器存储的计算机执行指令，使得所述网络设备通过所述通信端口与其他网络设备和UE之间进行数据交互来执行上述权利要求1-权利要求12中任一项所述的通信方法。
  25. 一种网络设备，其特征在于，包括：
    所述网络设备为用户设备UE提供空口，且所述网络设备可与其他网络设备进行交互，所述网络设备包括处理器、存储器和通信端口，所述处理器、所述存储器和所述通信端口均通过总线连接；所述存储器存储计算机执行指令；所述处理器执行所述存储器存储的计算机执行指令，使得所述网络设备通过所述通信端口与其他网络设备和UE之间进行数据交互来执行上述权利要求13-权利要求23中任一项所述的通信方法。
PCT/CN2017/120202 2017-01-06 2017-12-29 通信方法和网络设备 WO2018127017A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710010959.7 2017-01-06
CN201710010959.7A CN108282798B (zh) 2017-01-06 2017-01-06 通信方法和网络设备

Publications (1)

Publication Number Publication Date
WO2018127017A1 true WO2018127017A1 (zh) 2018-07-12

Family

ID=62789170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/120202 WO2018127017A1 (zh) 2017-01-06 2017-12-29 通信方法和网络设备

Country Status (2)

Country Link
CN (1) CN108282798B (zh)
WO (1) WO2018127017A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972180A (zh) * 2018-09-29 2020-04-07 中国移动通信有限公司研究院 数据传输方法、装置、相关设备及存储介质
CN110972189A (zh) * 2018-09-29 2020-04-07 中国移动通信有限公司研究院 数据传输方法、装置、相关设备及存储介质
CN112953685A (zh) * 2019-12-11 2021-06-11 中国移动通信有限公司研究院 一种模型数据传输方法和相关网络设备
WO2022143917A1 (zh) * 2020-12-31 2022-07-07 中科寒武纪科技股份有限公司 片间通信的电路、方法和系统
US20220232433A1 (en) * 2019-05-03 2022-07-21 Lg Electronics Inc. Method and apparatus for mobility management in wireless communication system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114071693B (zh) * 2018-12-07 2023-12-12 华为技术有限公司 通信方法及装置
WO2021208863A1 (zh) * 2020-04-16 2021-10-21 华为技术有限公司 数据传输方法及通信装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103326832A (zh) * 2012-03-19 2013-09-25 华为技术有限公司 数据包发送方法、模式转换方法及装置
CN104519529A (zh) * 2013-09-27 2015-04-15 上海贝尔股份有限公司 一种用于对用户设备进行传输控制的方法、设备与系统
US20150359000A1 (en) * 2014-06-09 2015-12-10 Qinghua Li Multi-user scheduling channel status reporting for wi-fi
CN105813213A (zh) * 2014-12-31 2016-07-27 中国电信股份有限公司 双连接方案中传输数据的方法、基站和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103326832A (zh) * 2012-03-19 2013-09-25 华为技术有限公司 数据包发送方法、模式转换方法及装置
CN104519529A (zh) * 2013-09-27 2015-04-15 上海贝尔股份有限公司 一种用于对用户设备进行传输控制的方法、设备与系统
US20150359000A1 (en) * 2014-06-09 2015-12-10 Qinghua Li Multi-user scheduling channel status reporting for wi-fi
CN105813213A (zh) * 2014-12-31 2016-07-27 中国电信股份有限公司 双连接方案中传输数据的方法、基站和系统

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972180A (zh) * 2018-09-29 2020-04-07 中国移动通信有限公司研究院 数据传输方法、装置、相关设备及存储介质
CN110972189A (zh) * 2018-09-29 2020-04-07 中国移动通信有限公司研究院 数据传输方法、装置、相关设备及存储介质
US20220232433A1 (en) * 2019-05-03 2022-07-21 Lg Electronics Inc. Method and apparatus for mobility management in wireless communication system
US12414199B2 (en) * 2019-05-03 2025-09-09 Lg Electronics Inc. Method and apparatus for mobility management in wireless communication system
CN112953685A (zh) * 2019-12-11 2021-06-11 中国移动通信有限公司研究院 一种模型数据传输方法和相关网络设备
CN112953685B (zh) * 2019-12-11 2023-03-28 中国移动通信有限公司研究院 一种模型数据传输方法和相关网络设备
WO2022143917A1 (zh) * 2020-12-31 2022-07-07 中科寒武纪科技股份有限公司 片间通信的电路、方法和系统

Also Published As

Publication number Publication date
CN108282798B (zh) 2021-09-14
CN108282798A (zh) 2018-07-13

Similar Documents

Publication Publication Date Title
US11076334B2 (en) Data forwarding method, device, and communications system
WO2018127017A1 (zh) 通信方法和网络设备
US11825338B2 (en) Dynamic link selection
CN109151918B (zh) 切换控制方法及装置
KR101895147B1 (ko) 분할 베어러를 위한 ｐｄｃｐ 및 흐름 제어
CN112970278B (zh) 用于在移动通信系统中执行通信的方法和装置
CN107155200B (zh) 应用于超级小区的通信方法和装置
CN113271633A (zh) 切换的方法和通信装置
WO2013044864A1 (zh) 通信模式切换的方法和装置
KR20090015850A (ko) 개인 네트워크 셀을 가지는 무선 통신 시스템에서 무선링크 연결 장치 및 방법
CN103650365B (zh) 多流传输的配置方法、基站、无线网络控制器和用户设备
US20230156587A1 (en) Transmission Configuration Method and Device
TW201933923A (zh) 附加上行鏈路故障處理
CN104247550B (zh) 一种数据的传输方法、通信设备和通信系统
CN107295590B (zh) 基站及lte网络向wlan网络切换的方法
KR20250012649A (ko) 랜덤 액세스 채널리스 계층 1/계층 2 트리거된 이동성의 실현
WO2021066161A1 (ja) 通信制御方法及びユーザ装置
EP3174354A1 (en) Method and apparatus for handling rrc release during dual connectivity communication with multiple base stations and related communication device
JP7669484B2 (ja) Ｍｒｏ臨界シーンの判定方法、装置及び機器
KR20250033273A (ko) 계층 1/계층 2 트리거된 이동성에 대한 구성 선택 강화들
CN120153703A (zh) 用于基站内集中式单元用户平面重定位的层1/层2触发的移动性
CN116868623A (zh) 通信系统及基站
WO2017206807A1 (zh) 一种配置无线资源的方法及基站和用户终端、存储介质
WO2020061871A1 (zh) 通信方法和通信装置

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: 17890032

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: 17890032

Country of ref document: EP

Kind code of ref document: A1