WO2023208044A1 - 小区切换方法、装置及网络侧设备 - Google Patents

小区切换方法、装置及网络侧设备 Download PDF

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Publication number
WO2023208044A1
WO2023208044A1 PCT/CN2023/090875 CN2023090875W WO2023208044A1 WO 2023208044 A1 WO2023208044 A1 WO 2023208044A1 CN 2023090875 W CN2023090875 W CN 2023090875W WO 2023208044 A1 WO2023208044 A1 WO 2023208044A1
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Prior art keywords
layer
message
switching operation
terminal
switching
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PCT/CN2023/090875
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English (en)
French (fr)
Inventor
宋二浩
鲍炜
Original Assignee
维沃移动通信有限公司
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Publication of WO2023208044A1 publication Critical patent/WO2023208044A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0069Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point

Definitions

  • the present application belongs to the field of mobile communication technology, and specifically relates to a cell switching method, device and network side equipment.
  • the New Radio access network splits the base station, such as NR Node B (gNB), into a central unit (Centralized Unit, CU) and a distributed unit (Distributed Unit, DU), and connects them through the F1 interface connect.
  • a gNB contains only one CU, including one or more DUs, and one DU corresponds to one or more cells (Cell).
  • CU includes the Packet Data Convergence Protocol (PDCP) layer and the protocol stack below, such as the PDCP layer and the Radio Resource Control (Radio Resource Control, RRC) layer.
  • DU includes the protocol stack below the PDCP layer, such as the Radio Link Control (RLC) layer, the Media Access Control (MAC) layer, and the Physical (Physical, PHY) layer.
  • RLC Radio Link Control
  • MAC Media Access Control
  • PHY Physical
  • the terminal also called User Equipment (UE)
  • UE User Equipment
  • Layer 1 or Layer 2 Intra-DU L1/L2
  • the MAC layer of the UE after the switching is completed No need to reset.
  • the buffer of the UE's MAC may contain the Radio Resource Control (RRC) signaling from the source cell received during the handover process, and the UE has already handed over to the target cell, so in the application source There may be errors in the configuration of the cell's RRC signaling.
  • RRC Radio Resource Control
  • Embodiments of the present application provide a cell handover method, device, and network side equipment, which can solve the problem of applying the configuration in the RRC signaling of the source cell since the UE has been handed over to the target cell.
  • a cell switching method applied to a first device, and the method includes:
  • the first device initiates the first operation and does not perform the second operation during the performance of the first operation
  • the first device is a distributed unit of a first access network device
  • the first operation is one of a layer 1 or layer 2 switching operation and a terminal reconfiguration operation
  • the second operation is The other of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal.
  • a cell switching device including:
  • the first execution module initiates the first operation
  • the second execution module does not execute the second operation during the execution of the first operation
  • the cell switching device is a distributed unit of the first access network equipment, the first operation is one of a layer 1 or layer 2 switching operation and a terminal reconfiguration operation, and the second operation is The other of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal.
  • a cell switching method applied to the second device, and the method includes:
  • the second device receives the first message or the second message from the first device
  • the first device is a distributed unit of the first access network device
  • the second device is a centralized unit of the first access network device
  • the first message is used to indicate rejection of the request by the first access network device.
  • the second terminal context modification request is used to indicate initiating a reconfiguration operation for the terminal.
  • the second message is used to indicate that the first device has initiated layer 1 or layer 1. 2 switching operation.
  • a cell switching device including:
  • a transmission module configured to receive the first message or the second message from the first device
  • An execution module configured to determine, according to the first message or the second message, that the first device has initiated a layer 1 or layer 2 switching operation
  • the first device is a distributed unit of the first access network device
  • the cell switching device is a centralized unit of the first access network device
  • the first message is used to indicate rejection by the first access network device.
  • the second terminal context modification request sent by the cell switching device, the second terminal context modification request is used to indicate the initiation of a reconfiguration operation for the terminal, and the second message is used to indicate that the first device has initiated layer 1 or layer 1 2 switching operation.
  • a network side device in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor.
  • a network side device including a processor and a communication interface, wherein the processor is configured to initiate a first operation, and does not perform a second operation during execution of the first operation.
  • another network side device including a processor and a communication interface, wherein the processor is configured to determine according to the first message or the second message that the first device has initiated layer 1 or layer 2.
  • the communication interface is used to receive the first message or the second message from the first device.
  • a cell switching system including: a terminal, a first device and a second device.
  • the first device can be used to perform the steps of the cell switching method as described in the first aspect.
  • the second device It can be used to perform the steps of the cell switching method as described in the third aspect.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the third aspect.
  • a chip in a tenth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. , or implement the method as described in the third aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the first aspect
  • the cell switching method, or the steps of implementing the method described in the third aspect is provided.
  • the first operation is initiated through the first device, and the second operation is not performed during the execution of the first operation; wherein the first device is a distributed unit of the first access network device, so
  • the first operation and the second operation are a layer 1 or layer 2 handover operation and a reconfiguration operation for the terminal, thereby avoiding the terminal applying the RRC signaling of the source cell for configuration after completing the cell handover, and accurately realizing the configuration of the target cell.
  • Figure 1 is a schematic structural diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 2 is a schematic flow chart of a cell switching method provided by an embodiment of the present application.
  • Figure 3 is a schematic structural diagram of a cell switching device provided by an embodiment of the present application.
  • Figure 4 is a schematic flow chart of another cell switching method provided by an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of another cell switching device provided by an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a network side device that implements an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • MID Mobile Internet Device
  • AR augmented reality
  • VR virtual reality
  • robots wearable devices
  • VUE vehicle user equipment
  • PUE pedestrian terminals
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computers, PC), teller machines or self-service machines and other terminal-side equipment
  • Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. .
  • the network side device 12 may include an access network device or a core network device, where the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless access network unit.
  • Access network equipment may include a base station, a Wireless Local Area Network (WLAN) access point or a Wireless Fidelity (WiFi) node, etc.
  • the base station may be called a Node B, an Evolved Node B (eNB), or an access point.
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • TRP Transmission Reception Point
  • the base station is not limited to specific technical terms. It should be noted that in this application, in the embodiment, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
  • Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc.
  • MME mobility management entities
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PCF Policy Control Function
  • the embodiment of the present application provides a cell switching method.
  • the execution subject of the method is a first device.
  • the first device may be a distributed unit of the first access network device.
  • the method It can be executed by software or hardware installed on the first device.
  • the method also includes the following steps.
  • the first device initiates the first operation and does not perform the second operation during the execution of the first operation
  • the first device is a distributed unit of a first access network device, and the first operation is one of a layer 1 or layer 2 (L1/L2) switching operation and a reconfiguration operation of a terminal, so The second operation is the other one of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal.
  • L1/L2 layer 1 or layer 2
  • the first device initiates a layer 1 or layer 2 switching operation, and does not perform a reconfiguration operation on the terminal during execution of the layer 1 or layer 2 switching operation. Equivalently, while the terminal performs the L1/L2 handover operation, the RRC signaling of the source cell is not sent to the terminal, thereby preventing the terminal from applying the RRC signaling of the source cell after the handover is completed, resulting in configuration errors.
  • the first device performs a reconfiguration operation on the terminal and does not initiate a layer 1 or layer 2 switching operation during the execution of the reconfiguration operation. Equivalently, during the reconfiguration operation of the terminal, the L1/L2 handover operation is not initiated before the end of the reconfiguration operation, thereby preventing the terminal from applying the RRC signaling of the source cell received before the handover operation is initiated after the handover is completed. causing configuration errors.
  • the L1/L2 switching operation is a switching operation initiated by the first device.
  • the reconfiguration operation on the terminal may be a reconfiguration operation initiated by the first device, or may be a reconfiguration operation initiated by other devices.
  • the reconfiguration operation may be initiated by the first access network. Initiated by the CU of the device, it can also be initiated by the DU or CU of the second access network device.
  • CMOS complementary metal-oxide-semiconductor
  • MN master node
  • MN master node
  • MN master node
  • SN secondary node
  • CA carrier aggregation technology
  • UE is configured with a series of serving cells controlled by the node, called a Cell Group (CG).
  • CG Cell Group
  • MCG master cell group
  • SCG secondary cell group
  • Each cell group includes a special cell (Special Cell, SpCell) and a series of secondary cells (Secondary Cell, Scell).
  • the special cell In MCG, the special cell is called Primary Cell (PCell), and in SCG, the special cell is called Primary Secondary Cell (PSCell).
  • PCell Primary Cell
  • PSCell Primary Secondary Cell
  • SpCell uses the primary carrier, while other secondary cells use secondary carriers. Resource scheduling within a cell group is performed by SpCell.
  • the first access network device may be the MN or SN corresponding to the terminal.
  • the first access network device is the MN corresponding to the terminal.
  • the first access network device is the SN corresponding to the terminal.
  • the embodiments of the present application initiate the first operation through the first device, and do not perform the second operation during the execution of the first operation; wherein the first device is the first access network device A distributed unit, the first operation and the second operation are a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal, thereby avoiding the terminal applying the RRC signaling of the source cell for configuration after completing the cell switching, and accurately Implement the configuration of the target cell.
  • the embodiments of this application provide at least one of the following specific implementations.
  • the layer 1 or layer 2 switching operation is an MCG switching operation
  • the first access network device is the MN corresponding to the terminal
  • the first device is the DU of the MN
  • the second device is the first access network device.
  • the CU of the network access device is the CU of the MN.
  • an example of the execution process is as follows.
  • the MN's DU initiates the MCG's layer 1 or layer 2 switching operation, including the MN's DU sending the MCG's L1/L2 switching command to the terminal;
  • the MN’s DU performs at least one of the following operations:
  • the MN's DU does not send the first terminal context modification request to the MN's CU.
  • the first terminal context modification request is used to indicate initiating a reconfiguration operation for the terminal; wherein, the first terminal context modification request
  • the request can be an interface message UE Context Modification Required.
  • A2.2 In the event that a second terminal context modification request is received from the CU of the MN, Reply to the first message, the first message being used to indicate rejection of the reconfiguration operation of the terminal; wherein the second terminal context modification request is used to indicate initiating the reconfiguration operation of the terminal, and the second terminal context modification request may be It is the interface message UE Context Modification Request.
  • the first message carries a first cause message unit (Cause Information Element, CauseIE), and the first cause message unit is used to indicate that the L1/L2 switching operation has been initiated, that is, the first cause message unit
  • the cause value (Cause Value) in indicates that the L1/L2 handover operation has been triggered (Triggered) or has just been triggered, such as L1/L2handover, L1/L2 handover triggered, etc.
  • A2.3 Send a second message to the second device.
  • the second message is used to indicate that a layer 1 or layer 2 switching operation has been initiated.
  • the second message can be reported through the interface message UE Context Modification Required.
  • the second message may be sent when step A1 is performed.
  • the length of the first time period can be determined by a preset first timer.
  • the first timer can be started in step A1.
  • the length of the first timer can be determined by The MN's CU is carried through the interface message sent to the MN's DU, such as UE Context Modification Request.
  • the duration of the first time period may be directly equal to the period from the DU of the MN initiating the layer 1 or layer 2 switching operation of the MCG to determining the layer 1 or layer 2 switching operation of the MCG. The time when execution is completed.
  • the CU of the MN when the CU of the MN determines that the DU of the MN has initiated a layer 1 or layer 2 handover operation, the CU of the MN does not send a signal to the DU of the MN within the fourth time period. Send a second terminal context modification request.
  • the CU of the MN may determine that the first device has initiated a layer 1 or layer 2 handover operation according to the received first message or second message.
  • the length of the fourth time period is determined by one of the following methods:
  • a fourth timer may be started when the MN's DU determines that the MN's DU initiates the layer 1 or layer 2 switching operation of the MCG;
  • the MN's DU can resume performing reconfiguration operations on the terminal.
  • the first device may also send a fourth message to the second device, the fourth message being used to indicate that the layer 1 or layer 2 switching is completed.
  • an example of the execution process is as follows:
  • the DU of B1.MN performs the reconfiguration operation on the terminal.
  • the reconfiguration operation on the terminal may include at least one of the following operations:
  • the MN's DU sends a first terminal context modification request to the MN's CU, such as UE Context Modification Required;
  • the MN's DU receives the second terminal context modification request from the MN's CU, such as UE Context Modification Request;
  • the MN's DU sends RRC reconfiguration signaling to the terminal.
  • B2.MN's DU does not initiate L1/L2 switching operations during the third time period, including not sending L1/L2 switching commands to the terminal.
  • the length of the third time period may be determined by a preset third timer.
  • the third timer may be started in step B1.
  • the length of the third timer may be determined by the MN.
  • the CU configures the DU through interface messages sent to the MN, such as UE Context Modification Request.
  • the duration of the third time period may be the time from when the MN's DU starts to perform a reconfiguration operation on the terminal to when it is determined that the reconfiguration operation is completed, for example, from the MN's DU The time from sending RRC reconfiguration signaling to the terminal to receiving the completion of RRC reconfiguration reported by the terminal.
  • the MN's DU can resume initiating L1/L2 handover operations.
  • the layer 1 or layer 2 switching operation is an SCG switching operation, that is, a primary and secondary node change (PScell change) operation
  • the first access network device is the SN corresponding to the terminal
  • the first device is the SN of the SN.
  • the second device is the CU of the SN
  • the third device can be the second access network device, that is, the MN corresponding to the terminal, or the third device can also be regarded as a centralized access network device of the second access network device.
  • Unit that is, CU of MN.
  • an example of the execution process is as follows.
  • the DU of the SN initiates the layer 1 or layer 2 switching operation of the SCG, including the DU of the SN sending the L1/L2 switching command of the SCG to the terminal.
  • the DU of C2.SN performs at least one of the following operations within the second time period:
  • the DU of the SN does not send the first terminal context modification request to the CU of the SN, for example Such as UE Context Modification Required.
  • the DU of the SN replies to the CU of the SN with a first message, and the first message Used to indicate rejection of the second terminal context modification request.
  • a second terminal context modification request such as a UE Context Modification Request
  • the first message carries a first cause message unit, and the first cause message unit is used to indicate that the L1/L2 switching operation has been initiated.
  • the DU of the SN sends a second message to the CU of the SN.
  • the second message is used to indicate that the L1/L2 handover operation has been initiated or the L1/L2 primary and secondary cell change operation has been initiated.
  • the second message It can be reported through UE Context Modification Required, and the second message can be sent when step C1 is performed.
  • the first secondary node modification request may be S-Node Modification Required.
  • the node modification request can be S-Node Modification Request.
  • the third message carries a second cause message unit, and the second cause message unit is used to indicate that a layer 1 or layer 2 switching operation has been initiated, that is, the cause value indication in the second cause message unit
  • the L1/L2 switching operation has been triggered or has just been triggered, such as L1/L2 switching, L1/L2PSCell change, L1/2 handover triggered.
  • steps C2.1 and C2.2 can be executed in the presence of Signaling Radio Bearer (SRB) 3, which is equivalent to the fact that the SN DU does not send SN RRC reconfiguration signaling based on SRB3 to the terminal.
  • SRB Signaling Radio Bearer
  • steps C2.4 and C2.5 may be implemented specifically through the second message sent by the DU of the SN to the CU of the SN.
  • the length of the second time period can be determined by a preset second timer.
  • the second timer can be started in step C1.
  • the length of the second timer can be determined by Carried by interface messages sent by the MN, such as S-Node Modification Request.
  • the duration of the second time period may be from when the first device initiates the layer 1 or layer 2 switching operation of the SCG to when it is determined that the layer 1 or layer 2 switching operation of the SCG is performed. Time to complete.
  • the DU of the SN determines that the CU of the SN has initiated layer 1 or In the case of layer 2 switching operation, the DU of the SN performs at least one of the following operations within the fifth time period:
  • the DU of SN and the CU of SN can resume performing reconfiguration operations on the terminal.
  • an example of the execution process is as follows:
  • the DU of D1.SN performs the reconfiguration operation on the terminal.
  • the reconfiguration operation on the terminal may include at least one of the following operations:
  • the first secondary node modification request initiated by the SN's CU to the MN such as S-Node Modification Required;
  • the CU of the SN receives the second secondary node modification request sent by the MN, such as S-Node Modification Request;
  • the SN's DU sends SN RRC reconfiguration signaling to the terminal through SRB3.
  • the DU of D2.SN does not initiate L1/L2 switching operations, including sending L1/L2 switching commands, during the third time period.
  • the length of the third time period may be determined by a preset third timer.
  • the third timer may be started in step D1.
  • the length of the third timer may be determined by SN.
  • the CU or MN is configured through the DU interface message sent to the SN.
  • the duration of the third time period may be the time from when the DU of the SN starts to perform the reconfiguration operation on the terminal to when it is determined that the reconfiguration operation is completed, for example, from the DU of the SN The time from sending SNRRC reconfiguration signaling to the terminal to receiving the completion of RRC reconfiguration reported by the terminal.
  • the third time period in steps B2 and D2 may be the same, or may be set separately according to actual needs, and is not specifically limited here.
  • the SN's DU can resume initiating L1/L2 handover operations.
  • the L1/L2 switching operation of the MCG and the L1/L2 switching operation of the SCG are respectively performed, the L1/L2 switching operation is not performed first. Perform the reconfiguration operation of the terminal without initiating the L1/L2 handover operation when performing the reconfiguration operation of the terminal first, thereby avoiding the terminal applying the RRC signaling of the source cell for configuration after completing the cell handover, and accurately realizing the configuration of the target cell. .
  • the execution subject may be a cell switching device.
  • the cell switching method performed by the cell switching device is used as an example to illustrate the cell switching device provided by the embodiment of the present application.
  • the cell switching device includes: a first execution module 301 and a second execution module 302.
  • the first execution module 301 initiates a first operation; the second execution module 302 does not execute the second operation during the execution of the first operation; wherein the first device is a distributed unit of a first access network device , the first operation is one of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal, and the second operation is the other one of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal.
  • the first device is a distributed unit of a first access network device
  • the first operation is one of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal
  • the second operation is the other one of a layer 1 or layer 2 switching operation and a reconfiguration operation for the terminal.
  • the first execution module 301 is configured to initiate a layer 1 or layer 2 switching operation; the second execution module 302 is configured to not perform a reset of the terminal during execution of the layer 1 or layer 2 switching operation. Configuration operations;
  • the first execution module 301 performs a reconfiguration operation on the terminal; the second execution module 302 does not initiate a layer 1 or layer 2 switching operation during the execution of the reconfiguration operation.
  • the first access network device is the MN corresponding to the terminal;
  • the first access network device is the SN corresponding to the terminal.
  • the embodiments of the present application initiate the first operation and do not perform the second operation during the execution of the first operation; wherein the first operation and the second operation are layer 1 or layer 2.
  • the handover operation and the reconfiguration operation of the terminal prevent the terminal from applying the RRC signaling of the source cell for configuration after completing the cell handover, and accurately realize the configuration of the target cell.
  • the first execution module 301 is used to initiate the layer 1 or layer 2 switching operation of MCG;
  • the second execution module 302 is configured to perform at least one of the following operations within the first time period:
  • the first terminal context modification request and the second terminal context modification request are used to indicate initiating a reconfiguration operation on the terminal, and the second device is a centralized unit of the first access network device.
  • the length of the first time period is determined by one of the following methods:
  • the first execution module 301 is used to initiate the layer 1 or layer 2 switching operation of the SCG;
  • the second execution module 302 is configured to perform at least one of the following operations within the second time period:
  • the first terminal context modification request, the second terminal context modification request, the first secondary node modification request and the second secondary node modification request are used to indicate initiating a reconfiguration operation on the terminal
  • the second device is the A centralized unit of the first access network device
  • the third device is the master node corresponding to the terminal.
  • the length of the second time period is determined by one of the following methods:
  • the first message carries a first cause message unit, and the first cause message unit is used to indicate that a layer 1 or layer 2 switching operation has been initiated.
  • the third message carries a second cause message unit, and the second cause message unit is used to indicate that the layer 1 or layer 2 switching operation has been initiated.
  • the first execution module 301 is used to perform a reconfiguration operation on the terminal;
  • the second execution module 302 is configured not to initiate a layer 1 or layer 2 switching operation within the third time period.
  • the length of the third time period is determined by one of the following methods:
  • the time from when the reconfiguration operation on the terminal is started to when the completion of the reconfiguration operation is determined.
  • the second execution module 302 is also configured to send a fourth message to the second device, where the fourth message is used to indicate that the layer 1 or layer 2 Switch execution is completed.
  • the embodiment of the present application does not perform the reconfiguration operation of the terminal when the L1/L2 switching operation is performed first in the L1/L2 switching operation of the MCG and the L1/L2 switching operation of the SCG. , and the L1/L2 handover operation is not initiated when the terminal reconfiguration operation is performed first, thereby avoiding the terminal applying the RRC signaling of the source cell for configuration after completing the cell handover, and accurately realizing the configuration of the target cell.
  • the cell switching device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • NAS Network Attached Storage
  • the cell switching device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 2 and achieve the same technical effect. To avoid duplication, details will not be described here.
  • the embodiment of the present application provides a cell switching method.
  • the execution subject of the method is a first device.
  • the first device may be a distributed unit of the first access network device.
  • the method It can be executed by software or hardware installed on the first device.
  • the method also includes the following steps.
  • the second device receives the first message or the second message from the first device
  • the first device is a distributed unit of the first access network device
  • the second device is a centralized unit of the first access network device
  • the first message is used to indicate rejection of the request by the first access network device.
  • the second terminal context modification request is used to indicate initiating a reconfiguration operation for the terminal.
  • the second message is used to indicate that the first device has initiated layer 1 or layer 1. 2 switching operation.
  • the first message carries a cause message unit, and the cause message unit is used to indicate that a layer 1 or layer 2 switching operation has been initiated.
  • the first access network device is the MN corresponding to the terminal;
  • the first access network device is the SN corresponding to the terminal.
  • the method further includes:
  • the second device does not send a second terminal context modification request to the first device within the fourth time period.
  • the length of the fourth time period is determined by one of the following methods:
  • the time from determining that the first device initiates the layer 1 or layer 2 switching operation of the MCG to determining that the layer 1 or layer 2 switching operation of the MCG is completed.
  • the method further includes:
  • the second device performs at least one of the following operations:
  • the second device does not send a second terminal context modification request to the first device
  • the second device does not send the first secondary node modification request to the third device;
  • the length of the fifth time period is determined by one of the following methods:
  • the method further includes:
  • the second device receives a fourth message from the first device, where the fourth message is used to indicate completion of execution of the layer 1 or layer 2 handover.
  • Embodiments of the present application can implement the technical solutions related to the second device in Figure 2 and steps A1-A3, B1-B3, C1-C3, and D1-D3, and obtain the same technical effects. The repeated parts will not be repeated here.
  • the embodiment of the present application receives the first message or the second message from the first device through the second device; it is determined according to the first message or the second message that the first device has initiated layer 1 Or layer 2 handover operation, thereby avoiding the terminal from applying the RRC signaling of the source cell for configuration after completing the cell handover, and accurately realizing the configuration of the target cell.
  • the execution subject may be a cell switching device.
  • the cell switching method performed by the cell switching device is used as an example to illustrate the cell switching device provided by the embodiment of the present application.
  • the cell switching device includes: a transmission module 501 and an execution module 502.
  • the transmission module 501 is used to receive a first message or a second message from a first device; the execution module 502 is used to determine that the first device has initiated layer 1 or layer 2 according to the first message or the second message.
  • Handover operation wherein the first device is a distributed unit of the first access network device, the cell switching device is a centralized unit of the first access network device, and the first message is used to indicate rejection
  • a second terminal context modification request sent by the cell switching device is used to indicate initiating a reconfiguration operation for the terminal, and the second message is used to indicate that the first device has initiated a layer 1 or layer 2 switching operation.
  • the first message carries a cause message unit, and the cause message unit is used to indicate that a layer 1 or layer 2 switching operation has been initiated.
  • the first access network device is the MN corresponding to the terminal;
  • the first access network device is the SN corresponding to the terminal.
  • perform Module 502 is also configured to not send a second terminal context modification request to the first device within a fourth time period.
  • the length of the fourth time period is determined by one of the following methods:
  • the time from determining that the first device initiates the layer 1 or layer 2 switching operation of the MCG to determining that the layer 1 or layer 2 switching operation of the MCG is completed.
  • the execution module 502 is further configured to: Perform at least one of the following actions within five time periods:
  • the length of the fifth time period is determined by one of the following methods:
  • the time from determining that the first device initiates the layer 1 or layer 2 switching operation of the SCG to determining that the execution of the layer 1 or layer 2 switching operation of the SCG is completed.
  • the transmission module 501 is further configured to receive a fourth message from the first device, where the fourth message is used to indicate that the layer 1 or layer 2 switching operation has been initiated.
  • the fourth message is used to indicate that the layer 1 or layer 2 switching operation has been initiated.
  • Embodiments of the present application can implement the technical solutions related to the second device in Figure 2 and steps A1-A3, B1-B3, C1-C3, and D1-D3, and obtain the same technical effects. The repeated parts will not be repeated here.
  • the embodiments of the present application receive a first message or a second message from a first device; and determine based on the first message or the second message that the first device has initiated Layer 1 or Layer 2. Handover operation, thereby avoiding the terminal applying the RRC signaling of the source cell for configuration after completing the cell handover, and accurately realizing the configuration of the target cell.
  • the cell switching device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network-attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiments of this application.
  • NAS Network Attached Storage
  • the cell switching device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 4 and achieve the same technical effect. To avoid duplication, details will not be described here.
  • this embodiment of the present application also provides a communication device 600, which includes a processor 601 and a memory 602.
  • the memory 602 stores programs or instructions that can be run on the processor 601, for example.
  • the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each step of the above cell switching method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each step of the above cell switching method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details are not repeated here.
  • An embodiment of the present application also provides a network-side device, including a processor and a communication interface.
  • the processor is configured to initiate a first operation, and does not perform the second operation during the execution of the first operation.
  • This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • An embodiment of the present application also provides another network side device, including a processor and a communication interface.
  • the processor is configured to determine according to the first message or the second message that the first device has initiated a layer 1 or layer 2 switching operation.
  • the communication interface is used for receiving the first message or the second message from the first device.
  • This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 700 includes: an antenna 71 , a radio frequency device 72 , a baseband device 73 , a processor 74 and a memory 75 .
  • the antenna 71 is connected to the radio frequency device 72 .
  • the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing.
  • the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72.
  • the radio frequency device 72 processes the received information and then sends it out through the antenna 71.
  • the method performed by the network side device in the above embodiment can be implemented in the baseband device 73, which includes a baseband processor.
  • the baseband device 73 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. program to perform the network device operations shown in the above method embodiments. do.
  • the network side device may also include a network interface 76, which is, for example, a common public radio interface (CPRI).
  • a network interface 76 which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 700 in the embodiment of the present application also includes: instructions or programs stored in the memory 75 and executable on the processor 74.
  • the processor 74 calls the instructions or programs in the memory 75 to execute Figure 3 or Figure 5
  • the execution methods of each module are shown and achieve the same technical effect. To avoid repetition, they will not be described in detail here.
  • Embodiments of the present application also provide a readable storage medium, which stores programs or instructions.
  • program or instructions When the program or instructions are executed by a processor, each process of the above cell switching method embodiment is implemented, and the same can be achieved. The technical effects will not be repeated here to avoid repetition.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above cell switching method embodiment. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above embodiment of the cell switching method.
  • Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • Embodiments of the present application also provide a cell switching system, including: a terminal, a first device and a second device.
  • the first device can be used to perform the steps of the cell switching method as described above.
  • the second device can be used to Perform the steps of the cell handover method as described above.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

本申请公开了一种小区切换方法、装置及网络侧设备,属于移动通信领域,本申请实施例的小区切换方法包括:第一设备发起第一操作,并在第一操作的执行期间不执行第二操作;其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作为层1或层2切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。

Description

小区切换方法、装置及网络侧设备
交叉引用
本申请要求在2022年04月29日提交中国专利局、申请号为202210468945.0、发明名称为“小区切换方法、装置及网络侧设备”的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于移动通信技术领域,具体涉及一种小区切换方法、装置及网络侧设备。
背景技术
新空口(New Radio)接入网,将基站,例如NR节点(NR Node B,gNB),拆分成中心单元(Centralized Unit,CU)和分布式单元(Distributed Unit,DU),并通过F1接口连接。一个gNB仅包含一个CU,包含一个或多个DU,一个DU对应1个或多个小区(Cell)。CU包含分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层及以下的协议栈,例如PDCP层和无线资源控制(Radio Resource Control,RRC)层等。DU包含PDCP层以下的协议栈,例如无线链路控制(Radio Link Control,RLC)层,媒体接入(Medium Access Control,MAC)层,物理(Physical,PHY)层。
终端(也称为用户设备(User Equipment,UE))在进行分布单元内的层1或层2(Intra-DU L1/L2)切换时,为了保证数据不中断,在切换完成后UE的MAC层可以不重置。但由于UE的MAC的缓存(buffer)中可能保存有在切换过程中接收到的来自源小区的无线资源控制(Radio Resource Control,RRC)信令,而UE已经切换到了目标小区,因此在应用源小区的RRC信令中的配置时可能出错。
发明内容
本申请实施例提供一种小区切换方法、装置及网络侧设备,能够解决UE已经切换到了目标小区,因此在应用源小区的RRC信令中的配置的问题。
第一方面,提供了一种小区切换方法,应用于第一设备,该方法包括:
第一设备发起第一操作,并在第一操作的执行期间不执行第二操作;
其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作为层1或层2切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。
第二方面,提供了一种小区切换装置,包括:
第一执行模块,发起第一操作;
第二执行模块,在第一操作的执行期间不执行第二操作;
其中,所述小区切换装置为第一接入网设备的分布式单元,所述第一操作为层1或层2切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。
第三方面,提供了一种小区切换方法,应用于第二设备,该方法包括:
第二设备从第一设备接收第一消息或第二消息;
根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作;
其中,所述第一设备为第一接入网设备的分布式单元,所述第二设备为所述第一接入网设备的集中式单元,所述第一消息用于指示拒绝由所述第二设备发送的第二终端上下文修改请求,所述第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二消息用于指示所述第一设备已发起层1或层2切换操作。
第四方面,提供了一种小区切换装置,包括:
传输模块,用于从第一设备接收第一消息或第二消息;
执行模块,用于根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作;
其中,所述第一设备为第一接入网设备的分布式单元,所述小区切换装置为所述第一接入网设备的集中式单元,所述第一消息用于指示拒绝由所述小区切换装置发送的第二终端上下文修改请求,所述第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二消息用于指示所述第一设备已发起层1或层2切换操作。
第五方面,提供了一种网络侧设备,该网络侧设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法,或实现如第三方面所述的方法 的步骤。
第六方面,提供了一种网络侧设备,包括处理器及通信接口,其中,所述处理器用于发起第一操作,在第一操作的执行期间不执行第二操作。
第七方面,提供了另一种网络侧设备,包括处理器及通信接口,其中,所述处理器用于根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作,所述通信接口用于从第一设备接收第一消息或第二消息。
第八方面,提供了一种小区切换系统,包括:终端、第一设备及第二设备,所述第一设备可用于执行如第一方面所述的小区切换方法的步骤,所述第二设备可用于执行如第三方面所述的小区切换方法的步骤。
第九方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
第十方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或实现如第三方面所述的方法。
第十一方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的小区切换方法,或实现如第三方面所述的方法的步骤。
在本申请实施例中,通过第一设备发起第一操作,并在第一操作的执行期间不执行第二操作;其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作和第二操作为层1或层2切换操作和对终端的重配置操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
附图说明
图1是本申请实施例可应用的一种无线通信系统的结构示意图;
图2是本申请实施例提供的一种小区切换方法的流程示意图;
图3是本申请实施例提供的一种小区切换装置的结构示意图;
图4是本申请实施例提供的另一种小区切换方法的流程示意图;
图5是本申请实施例提供的另一种小区切换装置的结构示意图;
图6是本申请实施例提供的一种通信设备结构示意图;
图7为实现本申请实施例的一种网络侧设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile  Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network,WLAN)接入点或无线保真(Wireless Fidelity,WiFi)节点等,基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmission Reception Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM),统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF),网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application  Function,AF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的小区切换方法、装置及网络侧设备进行详细地说明。
如图2所示,本申请实施例提供了一种小区切换方法,该方法的执行主体为第一设备,所述第一设备可以为第一接入网设备的分布式单元,换言之,该方法可以由安装在第一设备的软件或硬件来执行。所述方法还包括以下步骤。
S210、第一设备发起第一操作,并在第一操作的执行期间不执行第二操作;
其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作为层1或层2(L1/L2)切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。
在一种实施方式中,所述第一设备发起层1或层2切换操作,并在所述层1或层2切换操作的执行期间不执行对终端的重配置操作。相当于,在所述终端执行L1/L2切换操作期间,不向所述终端发送源小区的RRC信令,从而避免了终端在切换完成后应用源小区的RRC信令,导致配置出错。
在另一种实施方式中,所述第一设备执行对终端的重配置操作,并在所述重配置操作的执行期间不发起层1或层2切换操作。相当于,在对终端进行重配置操作过程中,在重配置操作结束前不发起L1/L2切换操作,从而避免终端在切换完成后应用在切换操作发起之前接收到的源小区的RRC信令,导致配置出错。
应理解的是,所述L1/L2切换操作为由所述第一设备发起的切换操作。
应理解的是,所述对终端的重配置操作可以是由所述第一设备发起的重配置操作,也可以是由其它设备发起的重配置操作,例如,可以由所述第一接入网设备的CU发起,也可以由第二接入网设备的DU或CU发起。
应理解的是,基于双连接(Dual Connectivity,DC)技术,为UE提供了两个网络节点,即接入网设备的资源,其中一个网络节点称为主节点(Master Node,MN),另一个网络节点称为辅节点(Secondary Node,SN)。在每个网络节点,使用了载波聚合技术(Carrier Aggregation,CA),即为UE配置由该节点控制的一系列服务小区,称为小区组(Cell Group,CG)。主节点控 制的为主小区组(Master Cell Group,MCG),辅节点控制的为辅小区组(Secondary Cell Group,SCG)。每个小区组都包含一个特殊小区(Special Cell,SpCell)和一系列辅小区(Secondary Cell,Scell)。在MCG中特殊小区称为主小区(Primary Cell,PCell),在SCG中特殊小区称为主辅小区(Primary Secondary Cell,PSCell)。在一个小区组中SpCell使用主载波,而其他辅小区使用辅载波,一个小区组内的资源调度由SpCell进行。
如上所述,所述第一接入网设备可以为与所述终端对应的MN或SN。
在一种实施方式中,在所述层1或层2切换操作为MCG切换操作的情况下,所述第一接入网设备为所述终端对应的MN。
在另一种实施方式中,在所述层1或层2切换操作为SCG切换操作的情况下,所述第一接入网设备为所述终端对应的SN。
由上述实施例的技术方案可知,本申请实施例通过第一设备发起第一操作,并在第一操作的执行期间不执行第二操作;其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作和第二操作为层1或层2切换操作和对终端的重配置操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
基于上述实施例中不同的L1/L2切换操作以及对应第一接入网设备,本申请实施例给出了以下至少一种具体的实施方式。
在所述层1或层2切换操作为MCG切换操作的情况下,所述第一接入网设备为终端对应的MN,则第一设备为MN的DU,第二设备为所述第一接入网设备的CU,即MN的CU。
在一种实施方式中,若所述第一设备先发起MCG的L1/L2切换,则执行过程举例如下所示。
A1.MN的DU发起MCG的层1或层2切换操作,包括MN的DU向终端发送MCG的L1/L2切换命令;
A2.在第一时间段内MN的DU执行以下操作至少之一:
A2.1.所述MN的DU不向MN的CU发送第一终端上下文修改请求,所述第一终端上下文修改请求用于指示发起对终端的重配置操作;其中,所述第一终端上下文修改请求可以为接口消息UE Context Modification Required。
A2.2.在从所述MN的CU接收到第二终端上下文修改请求的情况下, 回复第一消息,所述第一消息用于指示拒绝对终端的重配置操作;其中,所述第二终端上下文修改请求用于指示发起终端的重配置操作,所述第二终端上下文修改请求可以为接口消息UE Context Modification Request。
在一种实施方式中,所述第一消息携带第一原因消息单元(Cause Information Element,CauseIE),所述第一原因消息单元用于指示已发起L1/L2切换操作,即第一原因消息单元中的原因值(Cause Value)指示已触发(Triggered)或刚刚触发L1/L2切换操作,例如L1/L2handover、L1/L2 handover triggered等。
A2.3.向所述第二设备发送第二消息,所述第二消息用于指示已发起层1或层2切换操作,所述第二消息可以通过接口消息UE Context Modification Required上报。所述第二消息可以在执行步骤A1时发送。
在一种实施方式中,所述第一时间段的时长可以由预设的第一定时器来确定,所述第一定时器可以在步骤A1时启动,所述第一定时器的时长可以由MN的CU通过发送给MN的DU的接口消息,例如UE Context Modification Request携带。
在另一种实施方式中,所述第一时间段的时长可以直接等于从所述MN的DU发起所述MCG的层1或层2切换操作到确定所述MCG的层1或层2切换操作执行完成的时间。
在一种实施方式中,所述MN的CU在确定所述MN的DU已发起层1或层2切换操作的情况下,所述MN的CU在第四时间段内不向所述MN的DU发送第二终端上下文修改请求。所述MN的CU可通过根据接收到的第一消息或第二消息确定所述第一设备已发起层1或层2切换操作。
其中,所述第四时间段的时长由以下方式之一确定:
第四定时器,所述第四定时器可以所述MN的DU确定所述MN的DU发起所述MCG的层1或层2切换操作时开启;
从所述MN的CU确定所述MN的DU发起所述MCG的层1或层2切换操作到确定所述MCG的层1或层2切换操作执行完成的时间。
A3.在所述第一时间段之后,MN的DU可以恢复执行对终端的重配置操作。
可选地,在所述层1或层2切换完成之后,所述第一设备还可以向第二设备发送第四消息,所述第四消息用于指示所述层1或层2切换执行完成。
在另一种实施方式中,若所述第一设备先执行对终端的重配置操作,则执行过程举例如下所示:
B1.MN的DU执行对终端的重配置操作。
所述对终端的重配置操作可以包括以下操作至少之一:
MN的DU通过向MN的CU发送第一终端上下文修改请求,例如UE Context Modification Required;
MN的DU从MN的CU接收到第二终端上下文修改请求,例如UE Context Modification Request;
MN的DU向所述终端发送RRC重配信令。
B2.MN的DU在第三时间段内不发起L1/L2切换操作,包括不向终端发送L1/L2切换命令。
在一种实施方式中,所述第三时间段的时长可以由预设的第三定时器确定,所述第三定时器可以在步骤B1时启动,所述第三定时器的时长可以由MN的CU通过发送给MN的DU的接口消息,例如UE Context Modification Request配置。
在另一种实施方式中,所述第三时间段的时长可以为从所述MN的DU开始执行对终端的重配置操作到确定所述重配置操作执行完成的时间,例如,从MN的DU向终端下发RRC重配信令到收到终端上报的RRC重配置完成的时间。
B3.在第三时间段后,MN的DU可以恢复发起L1/L2切换操作。
在所述层1或层2切换操作为SCG切换操作,即主辅节点变更(PScell change)操作的情况下,所述第一接入网设备为终端对应的SN,则第一设备为SN的DU,第二设备为SN的CU,第三设备可以为第二接入网设备,即终端对应的MN,或者也可以将所述第三设备视为所述第二接入网设备的集中式单元,即MN的CU。
在一种实施方式中,若所述第一设备先发起SCG的L1/L2切换,则执行过程举例如下所示。
C1.所述SN的DU发起SCG的层1或层2切换操作,包括SN的DU向终端发送SCG的L1/L2切换命令。
C2.SN的DU在第二时间段内执行以下操作至少之一:
C2.1.所述SN的DU不向SN的CU发送第一终端上下文修改请求,例 如UE Context Modification Required。
C2.2.在从所述SN的CU接收到第二终端上下文修改请求,例如UE Context Modification Request的情况下,所述SN的DU向所述SN的CU回复第一消息,所述第一消息用于指示拒绝所述第二终端上下文修改请求。
在一种实施方式中,所述第一消息携带第一原因消息单元,所述第一原因消息单元用于指示已发起L1/L2切换操作。
C2.3.SN的DU向所述SN的CU发送第二消息,所述第二消息用于指示已发起L1/L2切换操作或者已发起L1/L2主辅小区变更操作,所述第二消息可以通过UE Context Modification Required上报,所述第二消息可以在执行步骤C1时发送。
C2.4.指示SN的CU不向MN发送第一辅节点修改请求,所述第一辅节点修改请求可以为S-Node Modification Required。
C2.5.指示SN的CU在接收到MN的第二辅节点修改请求的情况下回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求,所述第二辅节点修改请求可以为S-Node Modification Request。
在一种实施方式中,所述第三消息携带第二原因消息单元,所述第二原因消息单元用于指示已发起层1或层2切换操作,即第二原因消息单元中的原因值指示已触发或刚刚触发L1/L2切换操作,例如L1/L2切换、L1/L2PSCell change,L1/2 handover triggered。
其中,步骤C2.1和C2.2可以在存在信令无线承载(Signalling Radio Bearer,SRB)3的情况下执行,相当于,SN的DU不向终端发送基于SRB3的SN RRC重配置信令。
步骤C2.4和C2.5中的指示具体可以通过SN的DU向SN的CU发送的第二消息实现。
在一种实施方式中,所述第二时间段的时长可以由预设的第二定时器来确定,所述第二定时器可以在步骤C1时启动,所述第二定时器的时长可以由MN发送的接口消息,例如S-Node Modification Request携带。
在另一种实施方式中,所述第二时间段的时长可以是从所述第一设备发起所述SCG的层1或层2切换操作到确定所述SCG的层1或层2切换操作执行完成的时间。
在一种实施方式中,所述SN的DU在确定所述SN的CU已发起层1或 层2切换操作的情况下,所述SN的DU在第五时间段内执行以下操作至少之一:
不向所述SN的CU发送第二终端上下文修改请求;
不向MN发送第一辅节点修改请求;
在接收到所述MN发起的第二辅节点修改请求的情况下,回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求。
C3.在第二时间段之后,SN的DU和SN的CU可以恢复执行对终端的重配置操作。
在另一种实施方式中,若所述第一设备先执行对终端的重配置操作,则执行过程举例如下所示:
D1.SN的DU执行对终端的重配置操作。
所述对终端的重配置操作可以包括以下操作至少之一:
SN的CU向MN发起的第一辅节点修改请求,例如S-Node Modification Required;
SN的CU收到MN发送的第二辅节点修改请求,例如S-Node Modification Request;
或者,SN的DU通过SRB3向终端发送SN RRC重配置信令。
D2.SN的DU在第三时间段内不发起L1/L2切换操作,包括发送L1/L2切换命令。
在一种实施方式中,所述第三时间段的时长可以由预设的第三定时器确定,所述第三定时器可以在步骤D1时启动,所述第三定时器的时长可以由SN的CU或MN通过发送给SN的DU的接口消息配置。
在另一种实施方式中,所述第三时间段的时长可以为从所述SN的DU开始执行对终端的重配置操作到确定所述重配置操作执行完成的时间,例如,从SN的DU向终端下发SNRRC重配信令到收到终端上报的RRC重配置完成的时间。
所述步骤B2和D2中的第三时间段可以是相同的,也可以根据实际的需要分别进行设定,此处不作具体地限定。
D3.在第三时间段后,SN的DU可以恢复发起L1/L2切换操作。
由上述实施例的技术方案可知,本申请实施例通过分别对MCG的L1/L2切换操作和SCG的L1/L2切换操作情况下,在先执行L1/L2切换操作时不执 行终端的重配置操作,而在先执行终端的重配置操作时不发起L1/L2切换操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
本申请实施例提供的小区切换方法,执行主体可以为小区切换装置。本申请实施例中以小区切换装置执行小区切换方法为例,说明本申请实施例提供的小区切换装置。
如图3所示,所述小区切换装置包括:第一执行模块301和第二执行模块302。
所述第一执行模块301发起第一操作;所述第二执行模块302在第一操作的执行期间不执行第二操作;其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作为层1或层2切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。
可选地,所述第一执行模块301用于发起层1或层2切换操作;所述第二执行模块302用于在所述层1或层2切换操作的执行期间不执行对终端的重配置操作;
或者,
所述第一执行模块301执行对终端的重配置操作;所述第二执行模块302在所述重配置操作的执行期间不发起层1或层2切换操作。
可选地,在所述层1或层2切换操作为MCG切换操作的情况下,所述第一接入网设备为所述终端对应的MN;
或者,
在所述层1或层2切换操作为SCG切换操作的情况下,所述第一接入网设备为所述终端对应的SN。
由上述实施例的技术方案可知,本申请实施例通过发起第一操作,并在第一操作的执行期间不执行第二操作;其中,所述第一操作和第二操作为层1或层2切换操作和对终端的重配置操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
基于上述实施例,可选地,在所述层1或层2切换操作为MCG切换操作的情况下,所述第一执行模块301用于发起MCG的层1或层2切换操作;
所述第二执行模块302用于在第一时间段内执行以下操作至少之一:
不向第二设备发送第一终端上下文修改请求;
在从所述第二设备接收到第二终端上下文修改请求的情况下,回复第一消息,所述第一消息用于指示拒绝对终端的重配置操作;
向所述第二设备发送第二消息,所述第二消息用于指示已发起层1或层2切换操作;
其中,所述第一终端上下文修改请求和第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二设备为所述第一接入网设备的集中式单元。
可选地,所述第一时间段的时长由以下方式之一确定:
第一定时器;
从发起所述MCG的层1或层2切换操作到确定所述MCG的层1或层2切换操作执行完成的时间。
可选地,在所述层1或层2切换操作为SCG切换操作的情况下,所述第一执行模块301用于发起SCG的层1或层2切换操作;
所述第二执行模块302用于在第二时间段内执行以下操作至少之一:
不向第二设备发送第一终端上下文修改请求;
在从所述第二设备接收到第二终端上下文修改请求的情况下,向所述第二设备回复第一消息,所述第一消息用于指示拒绝所述第二终端上下文修改请求;
向所述第二设备发送第二消息,所述第二消息用于指示已发起层1或层2切换操作;
指示第二设备不向第三设备发送第一辅节点修改请求;
指示第二设备在接收到第三设备的第二辅节点修改请求的情况下回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求;
其中,所述第一终端上下文修改请求、第二终端上下文修改请求、第一辅节点修改请求和第二辅节点修改请求用于指示发起对终端的重配置操作,所述第二设备为所述第一接入网设备的集中式单元,所述第三设备为所述终端对应的主节点。
可选地,所述第二时间段的时长由以下方式之一确定:
第二定时器;
从发起所述SCG的层1或层2切换操作到确定所述SCG的层1或层2 切换操作执行完成的时间。
可选地,所述第一消息携带第一原因消息单元,所述第一原因消息单元用于指示已发起层1或层2切换操作。
可选地,所述第三消息携带第二原因消息单元,所述第二原因消息单元用于指示已发起层1或层2切换操作。
可选地,所述第一执行模块301用于执行对终端的重配置操作;
所述第二执行模块302用于在第三时间段内不发起层1或层2切换操作。
可选地,所述第三时间段的时长由以下方式之一确定:
第三定时器;
从开始执行对终端的重配置操作到确定所述重配置操作执行完成的时间。
可选地,在所述层1或层2切换完成之后,所述第二执行模块302还用于向第二设备发送第四消息,所述第四消息用于指示所述层1或层2切换执行完成。
由上述实施例的技术方案可知,本申请实施例通过分别对MCG的L1/L2切换操作和SCG的L1/L2切换操作情况下,在先执行L1/L2切换操作时不执行终端的重配置操作,而在先执行终端的重配置操作时不发起L1/L2切换操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
本申请实施例中的小区切换装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的小区切换装置能够实现图2的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
如图4所示,本申请实施例提供了一种小区切换方法,该方法的执行主体为第一设备,所述第一设备可以为第一接入网设备的分布式单元,换言之,该方法可以由安装在第一设备的软件或硬件来执行。所述方法还包括以下步骤。
S410、第二设备从第一设备接收第一消息或第二消息;
S420、根据所述第一消息或第二消息确定所述第一设备已发起层1或层 2切换操作;
其中,所述第一设备为第一接入网设备的分布式单元,所述第二设备为所述第一接入网设备的集中式单元,所述第一消息用于指示拒绝由所述第二设备发送的第二终端上下文修改请求,所述第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二消息用于指示所述第一设备已发起层1或层2切换操作。
可选地,所述第一消息携带原因消息单元,所述原因消息单元用于指示已发起层1或层2切换操作。
可选地,在所述层1或层2切换操作为MCG切换操作的情况下,所述第一接入网设备为所述终端对应的MN;
或者,
在所述层1或层2切换操作为SCG切换操作的情况下,所述第一接入网设备为所述终端对应的SN。
可选地,在所述层1或层2切换操作为MCG切换操作的情况下,所述方法还包括:
在第四时间段内所述第二设备不向所述第一设备发送第二终端上下文修改请求。
可选地,所述第四时间段的时长由以下方式之一确定:
第四定时器;
从确定所述第一设备发起所述MCG的层1或层2切换操作到确定所述MCG的层1或层2切换操作执行完成的时间。
可选地,在所述层1或层2切换操作为SCG切换操作的情况下,在确定所述第一设备已发起层1或层2切换操作的情况下,所述方法还包括:
在第五时间段内所述第二设备执行以下操作至少之一:
所述第二设备不向所述第一设备发送第二终端上下文修改请求;
所述第二设备不向第三设备发送第一辅节点修改请求;
在接收到所述第三设备发起的第二辅节点修改请求的情况下,回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求。
可选地,所述第五时间段的时长由以下方式之一确定:
第五定时器;
从确定所述第一设备发起所述SCG的层1或层2切换操作到确定所述 SCG的层1或层2切换操作执行完成的时间。
可选地,在确定所述第一设备已发起层1或层2切换操作之后,所述方法还包括:
所述第二设备从所述第一设备接收第四消息,所述第四消息用于指示所述层1或层2切换执行完成。
本申请实施例可以实现图2以及步骤A1-A3、B1-B3、C1-C3、D1-D3中与第二设备相关的技术方案,并得到相同的技术效果,重复部分此处不再赘述。
由上述实施例的技术方案可知,本申请实施例通过第二设备从第一设备接收第一消息或第二消息;根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
本申请实施例提供的小区切换方法,执行主体可以为小区切换装置。本申请实施例中以小区切换装置执行小区切换方法为例,说明本申请实施例提供的小区切换装置。
如图5所示,所述小区切换装置包括:传输模块501和执行模块502。
所述传输模块501用于从第一设备接收第一消息或第二消息;所述执行模块502用于根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作;其中,所述第一设备为第一接入网设备的分布式单元,所述小区切换装置为所述第一接入网设备的集中式单元,所述第一消息用于指示拒绝由所述小区切换装置发送的第二终端上下文修改请求,所述第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二消息用于指示所述第一设备已发起层1或层2切换操作。
可选地,所述第一消息携带原因消息单元,所述原因消息单元用于指示已发起层1或层2切换操作。
可选地,在所述层1或层2切换操作为MCG切换操作的情况下,所述第一接入网设备为所述终端对应的MN;
或者,
在所述层1或层2切换操作为SCG切换操作的情况下,所述第一接入网设备为所述终端对应的SN。
可选地,在所述层1或层2切换操作为MCG切换操作的情况下,执行 模块502还用于在第四时间段内不向所述第一设备发送第二终端上下文修改请求。
可选地,所述第四时间段的时长由以下方式之一确定:
第四定时器;
从确定所述第一设备发起所述MCG的层1或层2切换操作到确定所述MCG的层1或层2切换操作执行完成的时间。
可选地,在所述层1或层2切换操作为SCG切换操作的情况下,在确定所述第一设备已发起层1或层2切换操作的情况下,执行模块502还用于在第五时间段内执行以下操作至少之一:
不向所述第一设备发送第二终端上下文修改请求;
不向第三设备发送第一辅节点修改请求;
在接收到所述第三设备发起的第二辅节点修改请求的情况下,回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求。
可选地,所述第五时间段的时长由以下方式之一确定:
第五定时器;
从确定所述第一设备发起所述SCG的层1或层2切换操作到确定所述SCG的层1或层2切换操作执行完成的时间。
可选地,在确定所述第一设备已发起层1或层2切换操作之后,所述传输模块501还用于从所述第一设备接收第四消息,所述第四消息用于指示所述层1或层2切换执行完成。
本申请实施例可以实现图2以及步骤A1-A3、B1-B3、C1-C3、D1-D3中与第二设备相关的技术方案,并得到相同的技术效果,重复部分此处不再赘述。
由上述实施例的技术方案可知,本申请实施例通过从第一设备接收第一消息或第二消息;根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作,从而避免了终端在完成小区切换后应用源小区的RRC信令进行配置,准确实现目标小区的配置。
本申请实施例中的小区切换装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储 器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的小区切换装置能够实现图4的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图6所示,本申请实施例还提供一种通信设备600,包括处理器601和存储器602,存储器602上存储有可在所述处理器601上运行的程序或指令,例如,该通信设备600为终端时,该程序或指令被处理器601执行时实现上述小区切换方法实施例的各个步骤,且能达到相同的技术效果。该通信设备600为网络侧设备时,该程序或指令被处理器601执行时实现上述小区切换方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种网络侧设备,包括处理器和通信接口,处理器用于发起第一操作,在第一操作的执行期间不执行第二操作。该网络侧设备实施例与上述网络侧设备方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
本申请实施例还提供另一种网络侧设备,包括处理器和通信接口,处理器用于根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作,所述通信接口用于从第一设备接收第一消息或第二消息。该网络侧设备实施例与上述网络侧设备方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种网络侧设备。如图7所示,该网络侧设备700包括:天线71、射频装置72、基带装置73、处理器74和存储器75。天线71与射频装置72连接。在上行方向上,射频装置72通过天线71接收信息,将接收的信息发送给基带装置73进行处理。在下行方向上,基带装置73对要发送的信息进行处理,并发送给射频装置72,射频装置72对收到的信息进行处理后经过天线71发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置73中实现,该基带装置73包括基带处理器。
基带装置73例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图7所示,其中一个芯片例如为基带处理器,通过总线接口与存储器75连接,以调用存储器75中的程序,执行以上方法实施例中所示的网络设备操 作。
该网络侧设备还可以包括网络接口76,该接口例如为通用公共无线接口(common public radio interface,CPRI)。
具体地,本申请实施例的网络侧设备700还包括:存储在存储器75上并可在处理器74上运行的指令或程序,处理器74调用存储器75中的指令或程序执行图3或图5所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述小区切换方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述小区切换方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述小区切换方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种小区切换系统,包括:终端、第一设备及第二设备,所述第一设备可用于执行如上所述的小区切换方法的步骤,所述第二设备可用于执行如上所述的小区切换方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、 方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机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(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (23)

  1. 一种小区切换方法,包括:
    第一设备发起第一操作,并在第一操作的执行期间不执行第二操作;
    其中,所述第一设备为第一接入网设备的分布式单元,所述第一操作为层1或层2切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。
  2. 根据权利要求1所述的方法,其中,在所述层1或层2切换操作为主小区组切换操作的情况下,所述第一接入网设备为所述终端对应的主节点;
    或者,
    在所述层1或层2切换操作为辅小区组切换操作的情况下,所述第一接入网设备为所述终端对应的辅节点。
  3. 根据权利要求2所述的方法,其中,在所述层1或层2切换操作为主小区组切换操作的情况下,所述第一设备发起层1或层2切换操作,并在所述层1或层2切换操作的执行期间不执行对终端的重配置操作,包括:
    所述第一设备发起主小区组的层1或层2切换操作,并在第一时间段内执行以下操作至少之一:
    所述第一设备不向第二设备发送第一终端上下文修改请求;
    在从所述第二设备接收到第二终端上下文修改请求的情况下,回复第一消息,所述第一消息用于指示拒绝对终端的重配置操作;
    向所述第二设备发送第二消息,所述第二消息用于指示已发起层1或层2切换操作;
    其中,所述第一终端上下文修改请求和第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二设备为所述第一接入网设备的集中式单元。
  4. 根据权利要求3所述的方法,其中,所述第一时间段的时长由以下方式之一确定:
    第一定时器;
    从所述第一设备发起所述主小区组的层1或层2切换操作到确定所述主小区组的层1或层2切换操作执行完成的时间。
  5. 根据权利要求2所述的方法,其中,在所述层1或层2切换操作为辅小区组切换操作的情况下,所述第一设备发起层1或层2切换操作,并在所 述层1或层2切换操作的执行期间不执行对终端的重配置操作,包括:
    所述第一设备发起辅小区组的层1或层2切换操作,并在第二时间段内执行以下操作至少之一:
    所述第一设备不向第二设备发送第一终端上下文修改请求;
    在从所述第二设备接收到第二终端上下文修改请求的情况下,所述第一设备向所述第二设备回复第一消息,所述第一消息用于指示拒绝所述第二终端上下文修改请求;
    向所述第二设备发送第二消息,所述第二消息用于指示已发起层1或层2切换操作;
    指示第二设备不向第三设备发送第一辅节点修改请求;
    指示第二设备在接收到第三设备的第二辅节点修改请求的情况下回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求;
    其中,所述第一终端上下文修改请求、第二终端上下文修改请求、第一辅节点修改请求和第二辅节点修改请求用于指示发起对终端的重配置操作,所述第二设备为所述第一接入网设备的集中式单元,所述第三设备为所述终端对应的主节点。
  6. 根据权利要求5所述的方法,其中,所述第二时间段的时长由以下方式之一确定:
    第二定时器;
    从所述第一设备发起所述辅小区组的层1或层2切换操作到确定所述辅小区组的层1或层2切换操作执行完成的时间。
  7. 根据权利要求3或5所述的方法,其中,所述第一消息携带第一原因消息单元,所述第一原因消息单元用于指示已发起层1或层2切换操作。
  8. 根据权利要求5所述的方法,其中,所述第三消息携带第二原因消息单元,所述第二原因消息单元用于指示已发起层1或层2切换操作。
  9. 根据权利要求1所述的方法,其中,所述第一设备执行对终端的重配置操作,并在所述重配置操作的执行期间不发起层1或层2切换操作,包括:
    所述第一设备执行对终端的重配置操作,并在第三时间段内不发起层1或层2切换操作。
  10. 根据权利要求9所述的方法,其中,所述第三时间段的时长由以下方式之一确定:
    第三定时器;
    从所述第一设备开始执行对终端的重配置操作到确定所述重配置操作执行完成的时间。
  11. 根据权利要求1所述的方法,其中,在所述第一设备发起层1或层2切换操作之后,所述方法还包括:
    在所述层1或层2切换完成之后,所述第一设备向第二设备发送第四消息,所述第四消息用于指示所述层1或层2切换执行完成。
  12. 一种小区切换装置,包括:
    第一执行模块,发起第一操作;
    第二执行模块,在第一操作的执行期间不执行第二操作;
    其中,所述小区切换装置为第一接入网设备的分布式单元,所述第一操作为层1或层2切换操作和对终端的重配置操作中的一者,所述第二操作为层1或层2切换操作和对终端的重配置操作中的另一者。
  13. 一种小区切换方法,包括:
    第二设备从第一设备接收第一消息或第二消息;
    根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作;
    其中,所述第一设备为第一接入网设备的分布式单元,所述第二设备为所述第一接入网设备的集中式单元,所述第一消息用于指示拒绝由所述第二设备发送的第二终端上下文修改请求,所述第二终端上下文修改请求用于指示发起对终端的重配置操作,所述第二消息用于指示所述第一设备已发起层1或层2切换操作。
  14. 根据权利要求13所述的方法,其中,所述第一消息携带原因消息单元,所述原因消息单元用于指示已发起层1或层2切换操作。
  15. 根据权利要求13所述的方法,其中,在所述层1或层2切换操作为主小区组切换操作的情况下,所述第一接入网设备为所述终端对应的主节点;
    或者,
    在所述层1或层2切换操作为辅小区组切换操作的情况下,所述第一接入网设备为所述终端对应的辅节点。
  16. 根据权利要求15所述的方法,其中,在所述层1或层2切换操作为主小区组切换操作的情况下,所述方法还包括:
    在第四时间段内所述第二设备不向所述第一设备发送第二终端上下文修改请求。
  17. 根据权利要求16所述的方法,其中,所述第四时间段的时长由以下方式之一确定:
    第四定时器;
    从确定所述第一设备发起所述主小区组的层1或层2切换操作到确定所述主小区组的层1或层2切换操作执行完成的时间。
  18. 根据权利要求15所述的方法,其中,在所述层1或层2切换操作为辅小区组切换操作的情况下,在确定所述第一设备已发起层1或层2切换操作的情况下,所述方法还包括:
    在第五时间段内所述第二设备执行以下操作至少之一:
    所述第二设备不向所述第一设备发送第二终端上下文修改请求;
    所述第二设备不向第三设备发送第一辅节点修改请求;
    在接收到所述第三设备发起的第二辅节点修改请求的情况下,回复第三消息,所述第三消息用于指示拒绝所述第二辅节点修改请求。
  19. 根据权利要求18所述的方法,其中,所述第五时间段的时长由以下方式之一确定:
    第五定时器;
    从确定所述第一设备发起所述辅小区组的层1或层2切换操作到确定所述辅小区组的层1或层2切换操作执行完成的时间。
  20. 根据权利要求13所述的方法,其中,在确定所述第一设备已发起层1或层2切换操作之后,所述方法还包括:
    所述第二设备从所述第一设备接收第四消息,所述第四消息用于指示所述层1或层2切换执行完成。
  21. 一种小区切换装置,包括:
    传输模块,用于从第一设备接收第一消息或第二消息;
    执行模块,用于根据所述第一消息或第二消息确定所述第一设备已发起层1或层2切换操作;
    其中,所述第一设备为第一接入网设备的分布式单元,所述小区切换装置为所述第一接入网设备的集中式单元,所述第一消息用于指示拒绝由所述小区切换装置发送的第二终端上下文修改请求,所述第二终端上下文修改请 求用于指示发起对终端的重配置操作,所述第二消息用于指示所述第一设备已发起层1或层2切换操作。
  22. 一种网络侧设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至11任一项所述的小区切换方法,或者实现如权利要求13至20任一项所述的小区切换方法的步骤。
  23. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至11任一项所述的小区切换方法,或者实现如权利要求13至20任一项所述的小区切换方法的步骤。
PCT/CN2023/090875 2022-04-29 2023-04-26 小区切换方法、装置及网络侧设备 WO2023208044A1 (zh)

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