WO2019136611A1 - 小区切换的方法、接入网设备和终端设备 - Google Patents

小区切换的方法、接入网设备和终端设备 Download PDF

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Publication number
WO2019136611A1
WO2019136611A1 PCT/CN2018/071982 CN2018071982W WO2019136611A1 WO 2019136611 A1 WO2019136611 A1 WO 2019136611A1 CN 2018071982 W CN2018071982 W CN 2018071982W WO 2019136611 A1 WO2019136611 A1 WO 2019136611A1
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Prior art keywords
network device
access network
terminal device
measurement report
target
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PCT/CN2018/071982
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English (en)
French (fr)
Inventor
杨宁
Original Assignee
Oppo广东移动通信有限公司
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Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2018/071982 priority Critical patent/WO2019136611A1/zh
Priority to KR1020207022200A priority patent/KR20200108001A/ko
Priority to CN201880085481.7A priority patent/CN111557108A/zh
Priority to AU2018402046A priority patent/AU2018402046A1/en
Priority to JP2020537596A priority patent/JP2021514567A/ja
Priority to EP18899281.2A priority patent/EP3739936B1/en
Publication of WO2019136611A1 publication Critical patent/WO2019136611A1/zh
Priority to US16/924,503 priority patent/US20200344651A1/en

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    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1642—Formats specially adapted for sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • 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
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H04W36/085—Reselecting an access point involving beams of access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • 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
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H04W36/00725—Random access channel [RACH]-less handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present application relates to the field of communications, and more particularly, to a method of cell handover, an access network device, and a terminal device.
  • the terminal device switches from a source cell to a target.
  • the target access network device target eNB
  • the target access network device configures the terminal device to send a Radio Resource Control (RRC) reconfiguration complete message to the target access network device in a handover command.
  • RRC Radio Resource Control
  • the target cell can support multi-beam communication.
  • the target random access channel Random Access Channel
  • the RACH resource is related to the beam. According to the RACH-less procedure in LTE, the terminal device cannot determine the beam for transmitting the RRC reconfiguration complete message to the target access network device, and the uplink resource on the beam.
  • the embodiment of the present application provides a method for cell handover, an access network device, and a terminal device.
  • a terminal device may acquire a RRC reconfiguration complete message and listen to a physical downlink control channel (Physical).
  • Physical Physical downlink control channel
  • the downlink of the downlink control channel (PDCCH) and the uplink resources on the beam thereby reducing the delay in the cell handover process and further satisfying the service performance of the 5G NR communication.
  • the embodiment of the present application provides a cell handover method, which is applied to a cell handover of a RACH-less process in a 5G communication system, where a terminal device needs to be handed over from a source cell to a target cell, and the target cell supports multiple beams.
  • the method includes:
  • the target access network device configures, according to the beam measurement information, the terminal device to access at least one beam of the target cell, and configures an uplink unlicensed resource on each of the at least one beam.
  • the target access network device configures the terminal device to access at least one beam of the target cell according to the beam measurement information in the measurement report of the target cell for the target cell, and at least one An uplink grant-free resource is configured on each of the beams, so that the terminal device can obtain a beam for transmitting the RRC reconfiguration complete message and the PDCCH, and an unlicensed uplink resource on the beam, thereby reducing the cell handover process.
  • the method further includes:
  • the target access network device configures the terminal device to use time domain information of the uplink unlicensed resource on each of the beams.
  • the time domain information includes at least one of a sub frame (SF) sequence number, a system frame number (SFN) range, and a time window.
  • SF sub frame
  • SFN system frame number
  • the terminal device can acquire the time domain information of the uplink unlicensed resource on the used beam, and can be more effective, on the basis of acquiring the RRC reconfiguration complete message and the beam for monitoring the PDCCH, and the uplink resource on the beam. Use unlicensed uplink resources.
  • the method further includes:
  • the target access network device sends a handover command to the source access network device, where the handover command includes an identifier of the at least one beam, the uplink grant-free resource on each of the at least one beam, and the terminal device uses the at least Time domain information of the uplink grant-free resource on each beam in a beam.
  • the beam measurement information includes beam identification information, and a measured value of a beam identified by the beam identification information.
  • the beam measurement information includes a ranked list of measured values of the beam of the target cell measured by the terminal device.
  • the target access network device obtains the measurement report of the terminal device for the target cell, including:
  • the target access network device receives the measurement report sent by the source access network device through the Xn interface.
  • the target access network device receives the measurement report sent by the source access network device by using an Xn interface, including:
  • the target access network device receives, by using an Xn interface, a handover request sent by the source access network device, where the handover request includes the measurement report.
  • the target access network device obtains the measurement report of the terminal device for the target cell, including:
  • the target access network device receives the measurement report forwarded by the core network device from the source access network device through the NG interface.
  • the target access network device receives, by using an NG interface, the measurement report that is forwarded by the core network device from the source access network device, including:
  • the target access network device receives, by using the NG interface, a handover preparation message sent by the core network device, where the handover preparation message includes the measurement report.
  • the target access network device according to the beam measurement information, configuring the terminal device to access the at least one beam of the target cell, including:
  • the target access network device configures the at least one beam according to the beam measurement information, the moving speed of the terminal device, and the coverage of the beam of the target cell measured by the terminal device.
  • the target access network device can comprehensively consider the beam measurement information, the moving speed of the terminal device, and the coverage of the beam of the target cell measured by the terminal device, so that the RRC can be determined more accurately. Reconfigure the completion message and monitor the PDCCH beam.
  • the embodiment of the present application provides a cell handover method, which is applied to a cell handover of a RACH-less process in a 5G communication system, where the terminal device needs to be handed over from a source cell to a target cell, and the target The cell supports multi-beam communication;
  • the method includes:
  • the source access network device receives, from the terminal device, a first measurement report for the target cell, where the first measurement report includes beam measurement information;
  • the source access network device sends a second measurement report to the target access network device, or the source access network device sends the second measurement report to the core network device, so that the core network device forwards the measurement report to the The target access network device, wherein the second measurement report is the first measurement report, or the second measurement report is a measurement report that includes a sorted list of measured values of the beam of the target cell measured by the terminal device.
  • the source access network device sends a second measurement report to the target access network device, and the target access network device measures the beam measurement information or the terminal device according to the second measurement report. Sorting the list of measured values of the beam of the target cell, configuring the terminal device to access at least one beam of the target cell, and configuring the uplink grant-free resource on each of the at least one beam, so that the terminal device can obtain the transmit RRC reconfiguration The completion of the message and the monitoring of the PDCCH beam, and the unlicensed uplink resources on the beam, thereby reducing the delay in the cell handover process and satisfying the service performance of the 5G NR communication.
  • the method further includes:
  • the source access network device receives a handover command sent by the target access network device, where the handover command includes an identifier of at least one beam, an uplink grant-free resource on each of the at least one beam, and the terminal device uses the at least Time domain information of the uplink unlicensed resource on each of the beams, wherein the at least one beam and the uplink unlicensed resource on each of the at least one beam are determined according to the beam measurement information;
  • the source access network device sends the handover command to the terminal device.
  • the time domain information includes at least one of an SF sequence number, an SFN range, and a time window.
  • the beam measurement information includes beam identification information, and a measured value of the beam identified by the beam identification information.
  • the source access network device sends the second measurement report to the target access network device, including:
  • the source access network device sends a handover request to the target access network device through the Xn interface, where the handover request includes the second measurement report.
  • the source access network device sends the second measurement report to the core network device, including:
  • the source access network device sends the second measurement report to the core network device, so that the core network device sends a handover preparation message to the target access network device by using the NG interface, where the handover preparation message includes the second measurement report.
  • the method before the source access network device receives the first measurement report from the terminal device, the method further includes:
  • the source access network device sends measurement configuration information to the terminal device, where the measurement configuration information indicates that the terminal device measures the target cell, and reports the first measurement report.
  • the embodiment of the present application provides a cell handover method, which is applied to a cell handover of a RACH-less process in a 5G communication system, where the terminal device needs to switch from a source cell to a target cell, and the target The cell supports multi-beam communication;
  • the method includes:
  • the terminal device measures the target cell, and generates a measurement report for the target cell, where the measurement report includes beam measurement information;
  • the terminal device sends the measurement report to the source access network device
  • a handover command sent by the source access network device where the handover command includes an identifier of at least one beam, an uplink grant-free resource on each of the at least one beam, and the terminal device uses the at least one beam Time domain information of the uplink grant-free resource on each of the beams, wherein the at least one beam and the uplink grant-free resource on each of the at least one beam are determined according to the beam measurement information;
  • the terminal device transmits an RRC reconfiguration complete message on the at least one beam according to the handover command, and/or monitors the PDCCH on the at least one beam.
  • the terminal device configures the uplink unlicensed resource on the at least one beam of the target cell and the beam in each of the at least one beam according to the terminal device included in the handover command. Therefore, the RRC reconfiguration complete message and the beam for monitoring the PDCCH and the unlicensed uplink resource on the beam can be acquired. Further, the delay in the cell handover process can be reduced, and the service performance of the 5G NR communication can be satisfied.
  • the beam measurement information includes beam identification information, and a measured value of the beam identified by the beam identification information.
  • the time domain information includes at least one of an SF sequence number, an SFN range, and a time window.
  • the embodiment of the present application provides an access network device, which can execute the module or unit of the method in the first aspect or any optional implementation manner of the first aspect.
  • the embodiment of the present application provides an access network device, which can execute the module or unit of the method in the second aspect or any alternative implementation manner of the second aspect.
  • the embodiment of the present application provides a terminal device, which can execute the module or unit of the method in any of the optional implementations of the third aspect or the third aspect.
  • an access network device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • an access network device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
  • a terminal device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the third aspect or the third aspect.
  • a computer storage medium having stored therein program code for instructing a computer to execute instructions of the methods described in the above aspects.
  • a computer program product comprising instructions for causing a computer to perform the method of the above aspects when executed on a computer is provided.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for cell handover according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for cell handover according to another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for cell handover according to still another embodiment of the present application.
  • FIG. 5 is a schematic diagram of cell handover according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of an access network device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of another access network device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to a 5G NR communication system.
  • FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • wireless communication system 100 can include access network device 110.
  • Access network device 110 may be a device that communicates with the terminal device.
  • Access network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • terminal devices e.g., UEs
  • the access network device 110 may be a base station (gNB) in the NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device may be a relay station, Access points, in-vehicle devices, wearable devices, or network devices in the future evolution of the Public Land Mobile Network (PLMN).
  • gNB base station
  • CRAN Cloud Radio Access Network
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the access network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • FIG. 1 exemplarily shows an access network device and two terminal devices.
  • the wireless communication system 100 may include multiple access network devices and may include other within the coverage of each access network device.
  • the number of terminal devices is not limited in this embodiment of the present application.
  • the wireless communication system 100 may further include an Access and Mobility Management Function (AMF), a Session Management Function (SMF), and a Unified Data Management (UDM).
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UDM Unified Data Management
  • Other network entities such as an authentication server function (AUSF), are not limited in this embodiment of the present application.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 2 is a schematic flowchart of a method 200 for cell handover according to an embodiment of the present application.
  • the method 200 may be performed by a target access network device, where the target access network device may be an access network device as shown in FIG. 1, and the terminal device in the method 200 may be as shown in FIG.
  • the terminal device shown in the method 200, the source access network device in the method 200 may be an access network device as shown in FIG. 1, the method 200 is applied to a cell handover of a RACH-less process in a 5G communication system, where The terminal device needs to switch from the source cell to the target cell, and the target cell supports multi-beam communication.
  • the method 200 includes the following.
  • the target access network device obtains a measurement report of the terminal device for the target cell, where the measurement report includes beam measurement information.
  • the source access network device serves the source cell
  • the target access network device serves the target cell
  • the beam measurement information includes beam identification information, and a measured value of the beam identified by the beam identification information.
  • the beam measurement information includes the following contents:
  • the measured value of Beam D1 is a
  • the measured value of Beam D2 is b
  • the measured value of Beam D3 is c
  • the measured value of Beam D4 is d.
  • the beam measurement information includes a ranked list of measured values of the beam of the target cell measured by the terminal device.
  • the beam measurement information includes the following contents:
  • the target access network device can obtain the measured value of Beam D2 > the measured value of Beam D1 > the measured value of Beam D3 > the measured value of Beam D4 according to the above information, or
  • the target access network device can know that the measured value of Beam D2 ⁇ the measured value of Beam D1 ⁇ the measured value of Beam D3 ⁇ the measured value of Beam D4.
  • the target access network device may receive the measurement report sent by the source access network device through the Xn interface.
  • the target access network device receives, by using an Xn interface, a handover request sent by the source access network device, where the handover request includes the measurement report.
  • the Xn interface may be an X2 interface.
  • the Xn interface connects the source access network device to the target access network device.
  • the target access network device may also receive, by using the NG interface, the measurement report forwarded by the core network device from the source access network device.
  • the core network device can be an AMF.
  • the target access network device receives, by using the NG interface, a handover preparation message sent by the AMF device, where the handover preparation message includes the measurement report.
  • the interface between the access network device and the core network may also be an S1 interface.
  • the NG interface connects to an access network device (eg, a source access network device, or a target access network device) and a core network device.
  • an access network device eg, a source access network device, or a target access network device
  • the target access network device configures, according to the beam measurement information, the terminal device to access at least one beam of the target cell, and configures an uplink unlicensed resource on each of the at least one beam.
  • the method 200 further includes: the target access network device configuring the terminal device to use time domain information of the uplink unlicensed resource on each of the beams.
  • the time domain information includes at least one of an SF sequence number, an SFN range, and a time window.
  • the target access network device further configures the terminal device to use each of the beams on the basis of configuring the terminal device to access at least one beam of the target cell and configuring the uplink unlicensed resource on each of the at least one beam.
  • the time domain information of the uplink exemption resource so that the terminal device can more effectively use the unlicensed uplink resource on the at least one beam to send the RRC reconfiguration complete message and monitor the PDCCH beam.
  • the method 200 further includes: the target access network device sending a handover command to the source access network device, where the handover command includes an identifier of the at least one beam, and the uplink on each of the at least one beam.
  • the handover command includes an identifier of the at least one beam
  • the uplink on each of the at least one beam The unlicensed resource and the terminal device use time domain information of the uplink grant-free resource on each of the at least one beam.
  • the target access network device may also combine the moving speed of the terminal device with the coverage of the target cell measured by the terminal device. .
  • the target access network device configures the at least one beam according to the beam measurement information, the moving speed of the terminal device, and the coverage of the beam of the target cell measured by the terminal device.
  • the target access network device can comprehensively consider the beam measurement information, the moving speed of the terminal device, and the coverage of the target cell measured by the terminal device, so that the terminal device can determine the transmission RRC more accurately. Reconfigure the completion message and monitor the PDCCH beam.
  • the target access network device configures the terminal device to access at least one beam of the target cell according to the beam measurement information in the measurement report of the target cell for the target cell, and at least one An uplink grant-free resource is configured on each of the beams, so that the terminal device can obtain a beam for transmitting the RRC reconfiguration complete message and the PDCCH, and an unlicensed uplink resource on the beam, thereby reducing the cell handover process.
  • FIG. 3 is a schematic flowchart of a method 300 for cell handover according to an embodiment of the present application.
  • the method 300 may be performed by a source access network device, where the source access network device may be an access network device as shown in FIG. 1, and the terminal device in the method 300 may be as shown in FIG.
  • the terminal device shown in the method 300, the target access network device in the method 300 may be an access network device as shown in FIG. 1, the method 300 is applied to a cell handover of a RACH-less process in a 5G communication system, where The terminal device needs to switch from the source cell to the target cell, and the target cell supports multi-beam communication.
  • the method 300 includes the following.
  • the source access network device receives, from the terminal device, a first measurement report for the target cell, where the first measurement report includes beam measurement information.
  • the source access network device sends a second measurement report to the target access network device, or the source access network device sends the second measurement report to the core network device, so that the core network device forwards the measurement report.
  • the target access network device wherein the second measurement report is the first measurement report, or the second measurement report is a measurement report including a sorted list of measured values of the beam of the target cell measured by the terminal device.
  • the source access network device may send a handover request to the target access network device by using an Xn interface, where the handover request includes the second measurement report.
  • the source access network device may send the second measurement report to the core network device, so that the core network device sends a handover preparation message to the target access network device by using the NG interface, where the handover preparation message includes the first Two measurement reports.
  • the method 300 further includes:
  • the source access network device receives a handover command sent by the target access network device, where the handover command includes an identifier of at least one beam, an uplink grant-free resource on each of the at least one beam, and the terminal device uses the at least Time domain information of the uplink unlicensed resource on each of the beams, wherein the at least one beam and the uplink unlicensed resource on each of the at least one beam are determined according to the beam measurement information;
  • the source access network device sends the handover command to the terminal device.
  • the time domain information includes at least one of a subframe SF sequence number, a system frame number SFN range, and a time window.
  • the beam measurement information includes beam identification information, and a measured value of the beam identified by the beam identification information.
  • the method 300 further includes:
  • the source access network device sends measurement configuration information to the terminal device, where the measurement configuration information indicates that the terminal device measures the target cell, and reports the first measurement report.
  • the method 300 of the foregoing method for cell handover corresponds to the corresponding step in the method 200, and the step in the method 300 for the cell handover may refer to the description of the corresponding step in the method 200 of the cell handover. For brevity, details are not described herein again.
  • the source access network device sends a second measurement report to the target access network device, and the target access network device measures the beam measurement information or the terminal device according to the second measurement report. Sorting the list of measured values of the beam of the target cell, configuring the terminal device to access at least one beam of the target cell, and configuring the uplink grant-free resource on each of the at least one beam, so that the terminal device can obtain the transmit RRC reconfiguration The completion of the message and the monitoring of the PDCCH beam, and the unlicensed uplink resources on the beam, thereby reducing the delay in the cell handover process and satisfying the service performance of the 5G NR communication.
  • FIG. 4 is a schematic flowchart of a method 400 for cell handover according to an embodiment of the present application.
  • the method 400 may be performed by a terminal device, which may be a terminal device as shown in FIG. 1.
  • the source access network device in the method 400 may be connected as shown in FIG.
  • the method 400 is applied to a cell handover of a RACH-less process in a 5G communication system, wherein the terminal device needs to be handed over from the source cell to the target cell, and the target cell supports multi-beam communication.
  • the method 400 includes the following.
  • the terminal device measures the target cell, and generates a measurement report for the target cell, where the measurement report includes beam measurement information.
  • the terminal device sends the measurement report to the source access network device.
  • the terminal device receives a handover command sent by the source access network device, where the handover command includes an identifier of at least one beam, an uplink grant-free resource on each of the at least one beam, and the terminal device uses the at least one Time domain information of the uplink grant resource on each of the beams, wherein the at least one beam and the uplink grant resource on each of the at least one beam are determined according to the beam measurement information.
  • the terminal device sends an RRC reconfiguration complete message on the at least one beam according to the handover command, and/or monitors the PDCCH on the at least one beam.
  • the beam measurement information includes beam identification information, and a measured value of the beam identified by the beam identification information.
  • the time domain information includes at least one of an SF sequence number, an SFN range, and a time window.
  • the method 400 of the foregoing method for cell handover corresponds to the corresponding step in the method 200, and the steps in the method 400 for the cell handover may refer to the description of the corresponding steps in the method 200 of the cell handover. For brevity, no further details are provided herein.
  • the terminal device configures the uplink unlicensed resource on the at least one beam of the target cell and the beam in each of the at least one beam according to the terminal device included in the handover command. Therefore, the RRC reconfiguration complete message and the beam for monitoring the PDCCH and the unlicensed uplink resource on the beam can be acquired. Further, the delay in the cell handover process can be reduced, and the service performance of the 5G NR communication can be satisfied.
  • the terminal device 40 switches from the source cell to the target cell, the source access network device 20 serves the source cell, and the target access network device 30 serves the target cell, and the target The cell supports multi-beam communication.
  • the specific process is as shown in method 500.
  • the source access network device 20 sends measurement configuration information to the terminal device 40, where the measurement configuration information indicates that the terminal device 40 measures the target cell, and reports the measurement report for the target cell.
  • the terminal device 40 measures the target cell, and generates a measurement report for the target cell, where the measurement report includes beam measurement information.
  • the terminal device 40 measures the target cell, and the measurement report includes measurement information of Beam D1 and Beam D2.
  • the terminal device 40 sends the measurement report to the source access network device 20.
  • the source access network device 20 forwards the measurement report to the target access network device 30.
  • the source access network device 20 sorts the measured values of the beam of the target cell measured by the terminal device included in the beam measurement information, generates an ordered list, and the source access network device 20 sends the target access network device 30 to the target access network device 30. Send a measurement report with a sorted list.
  • source access network device 20 may perform step 504 or step 505 above.
  • the target access network device 30 can receive the measurement report sent by the source access network device 20 through the Xn interface.
  • the target access network device 30 receives the handover request sent by the source access network device 20 through the Xn interface, and the handover request includes the measurement report.
  • the Xn interface may be an X2 interface.
  • the Xn interface connects the source access network device 20 to the target access network device 30.
  • the target access network device 30 can also receive the measurement report forwarded by the core network device from the source access network device 20 through the NG interface.
  • the core network device can be an AMF.
  • the target access network device 30 receives, by using the NG interface, a handover preparation message sent by the AMF device, where the handover preparation message includes the measurement report.
  • the interface between the access network device and the core network may also be an S1 interface.
  • the NG interface connects to an access network device (eg, a source access network device, or a target access network device) and a core network device.
  • an access network device eg, a source access network device, or a target access network device
  • the target access network device 30 obtains a measurement report of the terminal device 40 for the target cell, where the measurement report includes beam measurement information.
  • the target access network device 30 configures, according to the beam measurement information, the terminal device to access at least one beam of the target cell, and configures an uplink unlicensed resource on each of the at least one beam.
  • the target access network device 30 may further configure the terminal device 40 to use time domain information of the uplink unlicensed resource on each of the beams.
  • the time domain information includes at least one of an SF sequence number, an SFN range, and a time window.
  • the target access network device 30 sends a handover command to the source access network device 20.
  • the switching command includes an identifier of the at least one beam, the uplink grant-free resource on each of the at least one beam, and a time when the terminal device uses the uplink grant-free resource on each of the at least one beam Domain information.
  • the source access network device 20 forwards the handover command received from the target access network device 30 to the terminal device 40.
  • the terminal device 40 sends an RRC reconfiguration complete message on the at least one beam according to the handover command, and/or monitors the PDCCH on the at least one beam.
  • FIG. 6 is a schematic block diagram of an access network device 600 in accordance with an embodiment of the present application.
  • the access network device 600 is applied to a cell handover of a RACH-less process in a 5G communication system, in which a terminal device needs to be handed over from a source cell to a target cell, and the target cell supports multi-beam communication.
  • the access network device 600 includes a communication unit 610 and a processing unit 620.
  • the communication unit 610 is configured to obtain a measurement report of the terminal device for the target cell, where the measurement report includes beam measurement information. And configuring, according to the beam measurement information, the terminal device to access at least one beam of the target cell, and configuring an uplink unlicensed resource on each of the at least one beam.
  • the access network device 600 may correspond to the target access network device in the method 200, and the corresponding operations implemented by the target access network device in the method 200 may be implemented. For brevity, no further details are provided herein.
  • FIG. 7 is a schematic block diagram of an access network device 700 in accordance with an embodiment of the present application. As shown in FIG. 7, the access network device 700 is applied to a cell handover of a RACH-less process in a 5G communication system, in which a terminal device needs to handover from a source cell to a target cell, and the target cell supports multi-beam communication.
  • the access network device 700 includes a communication unit 710.
  • the communication unit 710 is configured to receive, from the terminal device, a first measurement report for the target cell, where the first measurement report includes beam measurement information, and the communication unit 710, And the second access measurement report is sent to the target access network device, or the source access network device sends the second measurement report to the core network device, so that the core network device forwards the measurement report to the target access
  • the network device wherein the second measurement report is the first measurement report, or the second measurement report is a measurement report that includes a ranked list of measured values of the beam of the target cell measured by the terminal device.
  • the access network device 700 may correspond to the source access network device in the method 300, and the corresponding operations implemented by the source access network device in the method 300 may be implemented. For brevity, no further details are provided herein.
  • FIG. 8 is a schematic block diagram of a terminal device 800 according to an embodiment of the present application. As shown in FIG. 8, the terminal device 800 is applied to a cell handover of a RACH-less process in a 5G communication system, in which a terminal device needs to handover from a source cell to a target cell, and the target cell supports multi-beam communication.
  • the terminal device 800 includes a processing unit 810 and a communication unit 820; wherein the processing unit 810 is configured to measure the target cell, and generate a measurement report for the target cell, where the measurement report includes beam measurement information; the communication unit 820, Transmitting the measurement report to the source access network device; the communication unit 820 is further configured to receive a handover command sent by the source access network device, where the handover command includes an identifier of the at least one beam, each of the at least one beam An uplink grant-free resource on the beam and the terminal device using time domain information of the uplink grant-free resource on each of the at least one beam, wherein the at least one beam and each of the at least one beam The uplink grant-free resource is determined according to the beam measurement information; the processing unit 810 is further configured to send an RRC reconfiguration complete message on the at least one beam according to the handover command, and/or on the at least one beam Monitor the PDCCH.
  • the processing unit 810 is configured to measure the target cell, and generate a measurement report for the
  • FIG. 9 is a schematic structural diagram of a system chip 900 according to an embodiment of the present application.
  • the system chip 900 of FIG. 9 includes an input interface 901, an output interface 902, the processor 903, and a memory 904 that can be connected by an internal communication connection line.
  • the processor 903 is configured to execute code in the memory 904.
  • the processor 903 when the code is executed, the processor 903 implements a method performed by the target access network device in the method 200. For the sake of brevity, it will not be repeated here.
  • the processor 903 when the code is executed, the processor 903 implements a method performed by the source access network device in the method 300. For the sake of brevity, it will not be repeated here.
  • the processor 903 when the code is executed, the processor 903 implements a method performed by the terminal device in the method 400. For the sake of brevity, it will not be repeated here.
  • FIG. 10 is a schematic block diagram of a communication device 1000 in accordance with an embodiment of the present application.
  • the communication device 1000 includes a processor 1010 and a memory 1020.
  • the memory 1020 can store program code, and the processor 1010 can execute the program code stored in the memory 1020.
  • the communication device 1000 can include a transceiver 1030 that can control the transceiver 1030 to communicate externally.
  • the processor 1010 can call the program code stored in the memory 1020 to perform the corresponding operation of the target access network device in the method 200.
  • the processor 1010 can call the program code stored in the memory 1020 to perform the corresponding operation of the target access network device in the method 200.
  • the processor 1010 can invoke the program code stored in the memory 1020 to perform the corresponding operations of the source access network device in the method 300.
  • the processor 1010 can invoke the program code stored in the memory 1020 to perform the corresponding operations of the source access network device in the method 300.
  • the processor 1010 can call the program code stored in the memory 1020 to perform the corresponding operations of the terminal device in the method 400.
  • the processor 1010 can call the program code stored in the memory 1020 to perform the corresponding operations of the terminal device in the method 400.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请实施例提供了一种小区切换的方法、接入网设备和终端设备，RACH-less流程的小区切换中，终端设备可以获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的上行资源，从而，可以减小小区切换过程中的时延，进而，满足5G NR通信的业务性能。该方法包括：目标接入网设备获取该终端设备针对该目标小区的测量报告，该测量报告包括波束测量信息；该目标接入网设备根据该波束测量信息，配置该终端设备接入该目标小区的至少一个波束，以及在该至少一个波束中的每个波束上配置上行免授权资源。

Description

小区切换的方法、接入网设备和终端设备 技术领域
本申请涉及通信领域，并且更具体地，涉及一种小区切换的方法、接入网设备和终端设备。
背景技术
在长期演进(Long Term Evolution，LTE)通信***中，对于无随机接入信道(Random Access Channel Less，RACH-less)流程的小区切换(handover)，终端设备从源小区(source cell)切换至目标小区(target cell)的过程中，目标接入网设备(target eNB)在切换命令(handover command)中配置终端设备向目标接入网设备发送无线资源控制(Radio Resource Control，RRC)重配完成消息的上行资源。在第五代移动通信技术新空口(5-Generation New Radio，5G NR)中，目标小区可以支持多波束(beam)通信，然而，由于多个beam情况下，目标随机接入信道(Random Access Channel，RACH)资源和beam是相关的，依据LTE中的RACH-less流程，终端设备无法确定向目标接入网设备发送RRC重配完成消息的beam，以及beam上的上行资源。
发明内容
本申请实施例提供了一种小区切换的方法、接入网设备和终端设备，RACH-less流程的小区切换中，终端设备可以获取发送RRC重配完成消息和监听物理下行链路控制信道(Physical Downlink Control Channel，PDCCH)的波束，以及波束上的上行资源，从而，可以减小小区切换过程中的时延，进而，满足5G NR通信的业务性能。
第一方面，本申请实施例提供了一种小区切换的方法，应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信；
该方法包括：
目标接入网设备获取该终端设备针对该目标小区的测量报告，该测量报告包括波束测量信息；
该目标接入网设备根据该波束测量信息，配置该终端设备接入该目标小区的至少一个波束，以及在该至少一个波束中的每个波束上配置上行免授权资源。
因此，在本申请实施例的小区切换的方法中，目标接入网设备根据终端设备针对目标小区的测量报告中的波束测量信息，配置终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源，从而，终端设备可以获取发送RRC重配完成消息和监听PDCCH的波 束，以及波束上的免授权上行资源，进而，可以减小小区切换过程中的时延，满足5G NR通信的业务性能。
可选地，在第一方面的一种实现方式中，该方法还包括：
该目标接入网设备配置该终端设备使用该每个波束上的该上行免授权资源的时域信息。
可选地，在第一方面的一种实现方式中，该时域信息包括子帧(Sub frame，SF)序号、***帧号(System Frame Number，SFN)范围、时间窗中的至少一种。
因此，终端设备可以在获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的上行资源的基础上，获取使用波束上的上行免授权资源的时域信息，从而，可以更为有效的利用免授权上行资源。
可选地，在第一方面的一种实现方式中，该方法还包括：
该目标接入网设备向源接入网设备发送切换命令，该切换命令包括该至少一个波束的标识、该至少一个波束中的每个波束上的该上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息。
可选地，在第一方面的一种实现方式中，该波束测量信息包括波束标识信息，以及该波束标识信息所标识的波束的测量值。
可选地，在第一方面的一种实现方式中，该波束测量信息包括该终端设备测量的该目标小区的波束的测量值排序列表。
可选地，在第一方面的一种实现方式中，该目标接入网设备获取该终端设备针对该目标小区的测量报告，包括：
该目标接入网设备通过Xn接口接收源接入网设备发送的该测量报告。
可选地，在第一方面的一种实现方式中，该目标接入网设备通过Xn接口接收源接入网设备发送的该测量报告，包括：
该目标接入网设备通过Xn接口接收该源接入网设备发送的切换请求，该切换请求包括该测量报告。
可选地，在第一方面的一种实现方式中，该目标接入网设备获取该终端设备针对该目标小区的测量报告，包括：
该目标接入网设备通过NG接口接收核心网设备从源接入网设备处转发的该测量报告。
可选地，在第一方面的一种实现方式中，该目标接入网设备通过NG接口接收核心网设备从源接入网设备处转发的该测量报告，包括：
该目标接入网设备通过NG接口接收该核心网设备发送的切换准备消息，该切换准备消息包括该测量报告。
可选地，在第一方面的一种实现方式中，该目标接入网设备根据该波束测量信息，配置该终端设备接入该目标小区的至少一个波束，包括：
该目标接入网设备根据该波束测量信息、该终端设备的移动速度和该终端设备测量的该目标小区的波束的覆盖范围，配置该至少一个波束。
因此，目标接入网设备在配置至少一个波束的时候，可以综合考虑波束测量信息、终端设备的移动速度和终端设备测量的目标小区的波束的覆盖范围，从而，可以更为准确地确定发送RRC重配完成消息和监听PDCCH的波束。
第二方面，本申请实施例提供了一种小区切换的方法，其特征在于，应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信；
该方法包括：
源接入网设备从该终端设备接收针对该目标小区的第一测量报告，该第一测量报告包括波束测量信息；
该源接入网设备向目标接入网设备发送第二测量报告，或者，该源接入网设备向核心网设备发送该第二测量报告，以使该核心网设备将该测量报告转发给该目标接入网设备，其中，该第二测量报告为该第一测量报告，或者该第二测量报告为包括该终端设备测量的该目标小区的波束的测量值排序列表的测量报告。
因此，在本申请实施例的小区切换的方法中，源接入网设备向目标接入网设备发送第二测量报告，目标接入网设备根据第二测量报告中的波束测量信息或者终端设备测量的目标小区的波束的测量值排序列表，配置终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源，从而，终端设备可以获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的免授权上行资源，进而，可以减小小区切换过程中的时延，满足5G NR通信的业务性能。
可选地，在第二方面的一种实现方式中，该方法还包括：
该源接入网设备接收该目标接入网设备发送的切换命令，该切换命令包括至少一个波束的标识、该至少一个波束中的每个波束上的上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息，其中，该至少一个波束和该至少一个波束中的每个波束上的上行免授权资源为根据该波束测量信息确定的；
该源接入网设备向该终端设备发送该切换命令。
可选地，在第二方面的一种实现方式中，该时域信息包括SF序号、SFN范围、时间窗中的至少一种。
可选地，在第二方面的一种实现方式中，该波束测量信息包括波束标识信息，以及该波束标识信息所标识的波束的测量值。
可选地，在第二方面的一种实现方式中，该源接入网设备向目标接入网设备发送第二测量报告，包括：
该源接入网设备通过Xn接口向该目标接入网设备发送切换请求，该切换请求包括该第二测量报告。
可选地，在第二方面的一种实现方式中，该源接入网设备向核心网设备发送该第二测量报告，包括：
该源接入网设备向该核心网设备发送该第二测量报告，以使该核心网设备通过NG接口向该目标接入网设备发送切换准备消息，该切换准备消息包括该第二测量报告。
可选地，在第二方面的一种实现方式中，在该源接入网设备从该终端设备接收该第一测量报告之前，该方法还包括：
该源接入网设备向该终端设备发送测量配置信息，该测量配置信息指示该终端设备测量该目标小区，以及上报该第一测量报告。
第三方面，本申请实施例提供了一种小区切换的方法，其特征在于，应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信；
该方法包括：
该终端设备测量该目标小区，以及生成针对该目标小区的测量报告，该测量报告包括波束测量信息；
该终端设备向源接入网设备发送该测量报告；
该终端设备接收该源接入网设备发送的切换命令，该切换命令包括至少一个波束的标识、该至少一个波束中的每个波束上的上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息，其中，该至少一个波束和该至少一个波束中的每个波束上的上行免授权资源为根据该波束测量信息确定的；
该终端设备根据该切换命令，在该至少一个波束上发送RRC重配置完成消息，和/或，在该至少一个波束上监听PDCCH。
因此，在本申请实施例的小区切换的方法中，终端设备根据切换命令中包含的终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源，从而，可以获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的免授权上行资源，进而，可以减小小区切换过程中的时延，满足5G NR通信的业务性能。
可选地，在第三方面的一种实现方式中，该波束测量信息包括波束标识信息，以及该波束标识信息所标识的波束的测量值。
可选地，在第三方面的一种实现方式中，该时域信息包括SF序号、SFN范围、时间窗中的至少一种。
第四方面，本申请实施例提供了一种接入网设备，可以执行第一方面或第一方面的任一可选的实现方式中的方法的模块或者单元。
第五方面，本申请实施例提供了一种接入网设备，可以执行第二方面或第二方面的任一可选的实现方式中的方法的模块或者单元。
第六方面，本申请实施例提供了一种终端设备，可以执行第三方面或第三方面的任一可选的实现方式中的方法的模块或者单元。
第七方面，提供了一种接入网设备，该接入网设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。 该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第八方面，提供了一种接入网设备，该接入网设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时，该执行使得该处理器执行第二方面或第二方面的任意可能的实现方式中的方法。
第九方面，提供了一种终端设备，该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时，该执行使得该处理器执行第三方面或第三方面的任意可能的实现方式中的方法。
第十方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示计算机执行上述各方面所述的方法的指令。
第十一方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
附图说明
图1是本申请实施例一个应用场景的示意图。
图2是根据本申请一实施例的小区切换的方法的示意性流程图。
图3是根据本申请另一实施例的小区切换的方法的示意性流程图。
图4是根据本申请再一实施例的小区切换的方法的示意性流程图。
图5是根据本申请实施例的小区切换的示意图。
图6是根据本申请实施例的一种接入网设备的示意性框图。
图7是根据本申请实施例的另一种接入网设备的示意性框图。
图8是根据本申请实施例的一种终端设备的示意性框图。
图9示出了本申请实施例提供的通信设备的示意性框图。
图10是根据本申请实施例的***芯片的示意性结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
本申请实施例的技术方案可以应用于5G NR通信***。
图1是本发明实施例的应用场景的示意图。
如图1所示，无线通信***100可以包括接入网设备110。接入网设备110可以是与终端设备通信的设备。接入网设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备(例如UE)进行通信。可选地，该接入网设备110可以是NR***中的基站(gNB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器， 或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该无线通信***100还包括位于接入网设备110覆盖范围内的至少一个终端设备120。终端设备120可以是移动的或固定的。可选地，终端设备120可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
图1示例性地示出了一个接入网设备和两个终端设备，可选地，该无线通信***100可以包括多个接入网设备并且每个接入网设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该无线通信***100还可以包括接入与移动性管理功能(Access and Mobility Management Function，AMF)，会话管理功能(Session Management Function，SMF)、统一数据管理(Unified Data Management，UDM)，认证服务器功能(Authentication Server Function，AUSF)等其他网络实体，本申请实施例对此不作限定。
应理解，本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
图2是根据本申请实施例的一种小区切换的方法200的示意性流程图。如图2所示，该方法200可以由目标接入网设备执行，该目标接入网设备可以是如图1中所示的接入网设备，该方法200中的终端设备可以是如图1中所示的终端设备，该方法200中的源接入网设备可以是如图1中所示的接入网设备，该方法200应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信。该方法200包括以下内容。
210，目标接入网设备获取该终端设备针对该目标小区的测量报告，该测量报告包括波束测量信息。
应理解，源接入网设备服务源小区，目标接入网设备服务目标小区。
可选地，该波束测量信息包括波束标识信息，以及该波束标识信息所标识的波束的测量值。
例如，该波束测量信息包括如下内容：
Beam D1的测量值为a，Beam D2的测量值为b，Beam D3的测量值为c，Beam D4的测量值为d。
可选地，该波束测量信息包括该终端设备测量的该目标小区的波束的测量值排序列表。
例如，该波束测量信息包括如下内容：
1，Beam D2；
2，Beam D1；
3，Beam D3；
4，Beam D4，
目标接入网设备可以根据上述信息，获知Beam D2的测量值＞Beam D1的测量值＞Beam D3的测量值＞Beam D4的测量值，或者
目标接入网设备可以根据上述信息，获知Beam D2的测量值＜Beam D1的测量值＜Beam D3的测量值＜Beam D4的测量值。
具体地，该目标接入网设备可以通过Xn接口接收源接入网设备发送的该测量报告。
例如，该目标接入网设备通过Xn接口接收该源接入网设备发送的切换请求，该切换请求包括该测量报告。
可选地，Xn接口可以是X2接口。
应理解，Xn接口连接源接入网设备和目标接入网设备。
具体地，该目标接入网设备也可以通过NG接口接收核心网设备从源接入网设备处转发的该测量报告。
例如，该核心网设备可以是AMF。
又例如，该目标接入网设备通过NG接口接收AMF设备发送的切换准备消息，该切换准备消息包括该测量报告。
可选地，接入网设备和核心网的接口也可以是S1接口。
应理解，NG接口连接接入网设备(例如，源接入网设备，或，目标接入网设备)与核心网设备。
220，该目标接入网设备根据该波束测量信息，配置该终端设备接入该目标小区的至少一个波束，以及在该至少一个波束中的每个波束上配置上行免授权资源。
可选地，该方法200还包括：该目标接入网设备配置该终端设备使用该每个波束上的该上行免授权资源的时域信息。
可选地，该时域信息包括SF序号、SFN范围、时间窗中的至少一种。
因此，目标接入网设备在配置终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源的基础上，进一步配置终端设备使用每个波束上的上行免授权资源的时域信息，从而，终端设备可以更为有效的利用至少一个波束上的免授权上行资源发送RRC重配完成消息和监听PDCCH的波束。
可选地，该方法200还包括：该目标接入网设备向源接入网设备发送切 换命令，该切换命令包括该至少一个波束的标识、该至少一个波束中的每个波束上的该上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息。
可选地，该目标接入网设备在配置该终端设备接入该目标小区的至少一个波束的时候，还可以结合该终端设备的移动速度和该终端设备测量的该目标小区的波束的覆盖范围。
具体地，该目标接入网设备根据该波束测量信息、该终端设备的移动速度和该终端设备测量的该目标小区的波束的覆盖范围，配置该至少一个波束。
目标接入网设备在配置至少一个波束的时候，可以综合考虑波束测量信息、终端设备的移动速度和终端设备测量的目标小区的波束的覆盖范围，从而，终端设备可以更为准确地确定发送RRC重配完成消息和监听PDCCH的波束。
因此，在本申请实施例的小区切换的方法中，目标接入网设备根据终端设备针对目标小区的测量报告中的波束测量信息，配置终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源，从而，终端设备可以获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的免授权上行资源，进而，可以减小小区切换过程中的时延，满足5G NR通信的业务性能。
图3是根据本申请实施例的一种小区切换的方法300的示意性流程图。如图3所示，该方法300可以由源接入网设备执行，该源接入网设备可以是如图1中所示的接入网设备，该方法300中的终端设备可以是如图1中所示的终端设备，该方法300中的目标接入网设备可以是如图1中所示的接入网设备，该方法300应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信。该方法300包括以下内容。
310，源接入网设备从该终端设备接收针对该目标小区的第一测量报告，该第一测量报告包括波束测量信息。
320，该源接入网设备向目标接入网设备发送第二测量报告，或者，该源接入网设备向核心网设备发送该第二测量报告，以使该核心网设备将该测量报告转发给该目标接入网设备，其中，该第二测量报告为该第一测量报告，或者该第二测量报告为包括该终端设备测量的该目标小区的波束的测量值排序列表的测量报告。
具体地，该源接入网设备可以通过Xn接口向该目标接入网设备发送切换请求，该切换请求包括该第二测量报告。
具体地，该源接入网设备可以向该核心网设备发送该第二测量报告，以使该核心网设备通过NG接口向该目标接入网设备发送切换准备消息，该切换准备消息包括该第二测量报告。
可选地，该方法300还包括：
该源接入网设备接收该目标接入网设备发送的切换命令，该切换命令包括至少一个波束的标识、该至少一个波束中的每个波束上的上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息，其中，该至少一个波束和该至少一个波束中的每个波束上的上行免授权资源为根据该波束测量信息确定的；
该源接入网设备向该终端设备发送该切换命令。
可选地，该时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
可选地，该波束测量信息包括波束标识信息，以及该波束标识信息所标识的波束的测量值。
可选地，在该源接入网设备从该终端设备接收该第一测量报告之前，该方法300还包括：
该源接入网设备向该终端设备发送测量配置信息，该测量配置信息指示该终端设备测量该目标小区，以及上报该第一测量报告。
应理解，上述小区切换的方法300对应方法200中的相应步骤，以及上述小区切换的方法300中的步骤可以参考小区切换的方法200中的相应步骤的描述，为了简洁，在此不再赘述。
因此，在本申请实施例的小区切换的方法中，源接入网设备向目标接入网设备发送第二测量报告，目标接入网设备根据第二测量报告中的波束测量信息或者终端设备测量的目标小区的波束的测量值排序列表，配置终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源，从而，终端设备可以获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的免授权上行资源，进而，可以减小小区切换过程中的时延，满足5G NR通信的业务性能。
图4是根据本申请实施例的一种小区切换的方法400的示意性流程图。如图4所示，该方法400可以由终端设备执行，该终端设备可以是如图1中所示的终端设备，该方法400中的源接入网设备可以是如图1中所示的接入网设备，该方法400应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信。该方法400包括以下内容。
410，该终端设备测量该目标小区，以及生成针对该目标小区的测量报告，该测量报告包括波束测量信息。
420，该终端设备向源接入网设备发送该测量报告。
430，该终端设备接收该源接入网设备发送的切换命令，该切换命令包括至少一个波束的标识、该至少一个波束中的每个波束上的上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息，其中，该至少一个波束和该至少一个波束中的每个波束上的上行免授权资源为根据该波束测量信息确定的。
440，该终端设备根据该切换命令，在该至少一个波束上发送RRC重配 置完成消息，和/或，在该至少一个波束上监听PDCCH。
可选地，该波束测量信息包括波束标识信息，以及该波束标识信息所标识的波束的测量值。
可选地，该时域信息包括SF序号、SFN范围、时间窗中的至少一种。
应理解，上述小区切换的方法400对应方法200中的相应步骤，以及上述小区切换的方法400中的步骤可以参考小区切换的方法200中的相应步骤的描述，为了简洁，在此不再赘述。
因此，在本申请实施例的小区切换的方法中，终端设备根据切换命令中包含的终端设备接入目标小区的至少一个波束，以及在至少一个波束中的每个波束上配置上行免授权资源，从而，可以获取发送RRC重配完成消息和监听PDCCH的波束，以及波束上的免授权上行资源，进而，可以减小小区切换过程中的时延，满足5G NR通信的业务性能。
可选地，可以作为一个实施例，如图5所示，终端设备40从源小区切换至目标小区，源接入网设备20服务于源小区，目标接入网设备30服务于目标小区，目标小区支持多波束通信。具体过程如方法500所示。
501，该源接入网设备20向该终端设备40发送测量配置信息，该测量配置信息指示该终端设备40测量该目标小区，以及上报该针对该目标小区的测量报告。
502，该终端设备40测量该目标小区，以及生成针对该目标小区的测量报告，该测量报告包括波束测量信息。
例如，如图5所示，终端设备40测量该目标小区，该测量报告包括Beam D1和Beam D2的测量信息。
503，该终端设备40向源接入网设备20发送该测量报告。
504，源接入网设备20向目标接入网设备30转发该测量报告。
505，源接入网设备20对该波束测量信息所包括的该终端设备测量的该目标小区的波束的测量值进行排序，生成排序列表，以及源接入网设备20向目标接入网设备30发送包含排序列表的测量报告。
应理解，源接入网设备20可以执行上述步骤504或者步骤505。
具体地，该目标接入网设备30可以通过Xn接口接收源接入网设备20发送的该测量报告。
例如，该目标接入网设备30通过Xn接口接收该源接入网设备20发送的切换请求，该切换请求包括该测量报告。
可选地，Xn接口可以是X2接口。
应理解，Xn接口连接源接入网设备20和目标接入网设备30。
具体地，该目标接入网设备30也可以通过NG接口接收核心网设备从源接入网设备20处转发的该测量报告。
例如，该核心网设备可以是AMF。
又例如，该目标接入网设备30通过NG接口接收AMF设备发送的切换准备消息，该切换准备消息包括该测量报告。
可选地，接入网设备和核心网的接口也可以是S1接口。
应理解，NG接口连接接入网设备(例如，源接入网设备，或，目标接入网设备)与核心网设备。
506，该目标接入网设备30获取该终端设备40针对该目标小区的测量报告，该测量报告包括波束测量信息。
507，该目标接入网设备30根据该波束测量信息，配置该终端设备接入该目标小区的至少一个波束，以及在该至少一个波束中的每个波束上配置上行免授权资源。
可选地，该目标接入网设备30还可以配置该终端设备40使用该每个波束上的该上行免授权资源的时域信息。
可选地，该时域信息包括SF序号、SFN范围、时间窗中的至少一种。
508，该目标接入网设备30向源接入网设备20发送切换命令。
该切换命令包括该至少一个波束的标识、该至少一个波束中的每个波束上的该上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息。
509，该源接入网设20向该终端设备40转发从该目标接入网设备30接收的该切换命令。
510，该终端设备40根据该切换命令，在该至少一个波束上发送RRC重配置完成消息，和/或，在该至少一个波束上监听PDCCH。
图6是根据本申请实施例的接入网设备600的示意性框图。如图6所示，该接入网设备600应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信。该接入网设备600包括通信单元610和处理单元620；其中，该通信单元610，用于获取该终端设备针对该目标小区的测量报告，该测量报告包括波束测量信息；该处理单元620，用于根据该波束测量信息，配置该终端设备接入该目标小区的至少一个波束，以及在该至少一个波束中的每个波束上配置上行免授权资源。
应理解，该接入网设备600可以对应于方法200中的目标接入网设备，可以实现方法200中目标接入网设备实现的相应操作，为了简洁，在此不再赘述。
图7是根据本申请实施例的接入网设备700的示意性框图。如图7所示，该接入网设备700应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信。该接入网设备700包括通信单元710；其中，该通信单元710，用于从该终端设备接收针对该目标小区的第一测量报告，该第一测量报告包括波束测量信息；该通信单元710，还用于向目标接入网设备发送第二测量报告，或者，该源接入网设备向核心网设备发送该第二测量报告，以使该核心网设备将该测量报告转发给该目标接入网设备，其中，该第二测量报告为该第一测量报告，或者该第二测量报告为包括该终端设备测量的该目标小区的波束的测量 值排序列表的测量报告。
应理解，该接入网设备700可以对应于方法300中的源接入网设备，可以实现方法300中源接入网设备实现的相应操作，为了简洁，在此不再赘述。
图8是根据本申请实施例的终端设备800的示意性框图。如图8所示，该终端设备800应用于5G通信***中RACH-less流程的小区切换，其中，终端设备需要从源小区切换至目标小区，该目标小区支持多波束通信。该终端设备800包括处理单元810和通信单元820；其中，该处理单元810用于测量该目标小区，以及生成针对该目标小区的测量报告，该测量报告包括波束测量信息；该通信单元820，用于向源接入网设备发送该测量报告；该通信单元820，还用于接收该源接入网设备发送的切换命令，该切换命令包括至少一个波束的标识、该至少一个波束中的每个波束上的上行免授权资源和该终端设备使用该至少一个波束中的每个波束上的该上行免授权资源的时域信息，其中，该至少一个波束和该至少一个波束中的每个波束上的上行免授权资源为根据该波束测量信息确定的；该处理单元810，还用于根据该切换命令，在该至少一个波束上发送RRC重配置完成消息，和/或，在该至少一个波束上监听PDCCH。
图9是本申请实施例的***芯片900的一个示意性结构图。图9的***芯片900包括输入接口901、输出接口902、所述处理器903以及存储器904之间可以通过内部通信连接线路相连，所述处理器903用于执行所述存储器904中的代码。
可选地，当所述代码被执行时，所述处理器903实现方法200中由目标接入网设备执行的方法。为了简洁，在此不再赘述。
可选地，当所述代码被执行时，所述处理器903实现方法300中由源接入网设备执行的方法。为了简洁，在此不再赘述。
可选地，当所述代码被执行时，所述处理器903实现方法400中由终端设备执行的方法。为了简洁，在此不再赘述。
图10是根据本申请实施例的通信设备1000的示意性框图。如图10所示，该通信设备1000包括处理器1010和存储器1020。其中，该存储器1020可以存储有程序代码，该处理器1010可以执行该存储器1020中存储的程序代码。
可选地，如图10所示，该通信设备1000可以包括收发器1030，处理器1010可以控制收发器1030对外通信。
可选地，该处理器1010可以调用存储器1020中存储的程序代码，执行方法200中的目标接入网设备的相应操作，为了简洁，在此不再赘述。
可选地，该处理器1010可以调用存储器1020中存储的程序代码，执行方法300中的源接入网设备的相应操作，为了简洁，在此不再赘述。
可选地，该处理器1010可以调用存储器1020中存储的程序代码，执行方法400中的终端设备的相应操作，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的 处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可 以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (42)

  1. 一种小区切换的方法，其特征在于，应用于第五代移动通信技术5G通信***中无随机接入信道RACH流程的小区切换，其中，终端设备需要从源小区切换至目标小区，所述目标小区支持多波束通信；
    所述方法包括：
    目标接入网设备获取所述终端设备针对所述目标小区的测量报告，所述测量报告包括波束测量信息；
    所述目标接入网设备根据所述波束测量信息，配置所述终端设备接入所述目标小区的至少一个波束，以及在所述至少一个波束中的每个波束上配置上行免授权资源。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述目标接入网设备配置所述终端设备使用所述每个波束上的所述上行免授权资源的时域信息。
  3. 根据权利要求2所述的方法，其特征在于，所述时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
  4. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：
    所述目标接入网设备向源接入网设备发送切换命令，所述切换命令包括所述至少一个波束的标识、所述至少一个波束中的每个波束上的所述上行免授权资源和所述终端设备使用所述至少一个波束中的每个波束上的所述上行免授权资源的时域信息。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述波束测量信息包括波束标识信息，以及所述波束标识信息所标识的波束的测量值。
  6. 根据权利要求1至4中任一项所述的方法，其特征在于，所述波束测量信息包括所述终端设备测量的所述目标小区的波束的测量值排序列表。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述目标接入网设备获取所述终端设备针对所述目标小区的测量报告，包括：
    所述目标接入网设备通过Xn接口接收源接入网设备发送的所述测量报告。
  8. 根据权利要求7所述的方法，其特征在于，所述目标接入网设备通过Xn接口接收源接入网设备发送的所述测量报告，包括：
    所述目标接入网设备通过Xn接口接收所述源接入网设备发送的切换请求，所述切换请求包括所述测量报告。
  9. 根据权利要求1至6中任一项所述的方法，其特征在于，所述目标接入网设备获取所述终端设备针对所述目标小区的测量报告，包括：
    所述目标接入网设备通过NG接口接收核心网设备从源接入网设备处转发的所述测量报告。
  10. 根据权利要求9所述的方法，其特征在于，所述目标接入网设备通过NG接口接收核心网设备从源接入网设备处转发的所述测量报告，包括：
    所述目标接入网设备通过NG接口接收所述核心网设备发送的切换准备消息，所述切换准备消息包括所述测量报告。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述目标接入网设备根据所述波束测量信息，配置所述终端设备接入所述目标小区的至少一个波束，包括：
    所述目标接入网设备根据所述波束测量信息、所述终端设备的移动速度和所述终端设备测量的所述目标小区的波束的覆盖范围，配置所述至少一个波束。
  12. 一种小区切换的方法，其特征在于，应用于第五代移动通信技术5G通信***中无随机接入信道RACH流程的小区切换，其中，终端设备需要从源小区切换至目标小区，所述目标小区支持多波束通信；
    所述方法包括：
    源接入网设备从所述终端设备接收针对所述目标小区的第一测量报告，所述第一测量报告包括波束测量信息；
    所述源接入网设备向目标接入网设备发送第二测量报告，或者，所述源接入网设备向核心网设备发送所述第二测量报告，以使所述核心网设备将所述测量报告转发给所述目标接入网设备，其中，所述第二测量报告为所述第一测量报告，或者所述第二测量报告为包括所述终端设备测量的所述目标小区的波束的测量值排序列表的测量报告。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    所述源接入网设备接收所述目标接入网设备发送的切换命令，所述切换命令包括至少一个波束的标识、所述至少一个波束中的每个波束上的上行免授权资源和所述终端设备使用所述至少一个波束中的每个波束上的所述上行免授权资源的时域信息，其中，所述至少一个波束和所述至少一个波束中的每个波束上的上行免授权资源为根据所述波束测量信息确定的；
    所述源接入网设备向所述终端设备发送所述切换命令。
  14. 根据权利要求13所述的方法，其特征在于，所述时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
  15. 根据权利要求12至14中任一项所述的方法，其特征在于，所述波束测量信息包括波束标识信息，以及所述波束标识信息所标识的波束的测量值。
  16. 根据权利要求12至15中任一项所述的方法，其特征在于，所述源接入网设备向目标接入网设备发送第二测量报告，包括：
    所述源接入网设备通过Xn接口向所述目标接入网设备发送切换请求，所述切换请求包括所述第二测量报告。
  17. 根据权利要求12至15中任一项所述的方法，其特征在于，所述源接入网设备向核心网设备发送所述第二测量报告，包括：
    所述源接入网设备向所述核心网设备发送所述第二测量报告，以使所述核心网设备通过NG接口向所述目标接入网设备发送切换准备消息，所述切 换准备消息包括所述第二测量报告。
  18. 根据权利要求12至17中任一项所述的方法，其特征在于，在所述源接入网设备从所述终端设备接收所述第一测量报告之前，所述方法还包括：
    所述源接入网设备向所述终端设备发送测量配置信息，所述测量配置信息指示所述终端设备测量所述目标小区，以及上报所述第一测量报告。
  19. 一种小区切换的方法，其特征在于，应用于第五代移动通信技术5G通信***中无随机接入信道RACH流程的小区切换，其中，终端设备需要从源小区切换至目标小区，所述目标小区支持多波束通信；
    所述方法包括：
    所述终端设备测量所述目标小区，以及生成针对所述目标小区的测量报告，所述测量报告包括波束测量信息；
    所述终端设备向源接入网设备发送所述测量报告；
    所述终端设备接收所述源接入网设备发送的切换命令，所述切换命令包括至少一个波束的标识、所述至少一个波束中的每个波束上的上行免授权资源和所述终端设备使用所述至少一个波束中的每个波束上的所述上行免授权资源的时域信息，其中，所述至少一个波束和所述至少一个波束中的每个波束上的上行免授权资源为根据所述波束测量信息确定的；
    所述终端设备根据所述切换命令，在所述至少一个波束上发送无线资源控制RRC重配置完成消息，和/或，在所述至少一个波束上监听下行控制信道PDCCH。
  20. 根据权利要求19所述的方法，其特征在于，所述波束测量信息包括波束标识信息，以及所述波束标识信息所标识的波束的测量值。
  21. 根据权利要求19或20所述的方法，其特征在于，所述时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
  22. 一种接入网设备，其特征在于，应用于第五代移动通信技术5G通信***中无随机接入信道RACH流程的小区切换，其中，终端设备需要从源小区切换至目标小区，所述目标小区支持多波束通信；
    所述接入网设备包括：
    通信单元，用于获取所述终端设备针对所述目标小区的测量报告，所述测量报告包括波束测量信息；
    处理单元，用于根据所述波束测量信息，配置所述终端设备接入所述目标小区的至少一个波束，以及在所述至少一个波束中的每个波束上配置上行免授权资源。
  23. 根据权利要求22所述的接入网设备，其特征在于，所述处理单元还用于配置所述终端设备使用所述每个波束上的所述上行免授权资源的时域信息。
  24. 根据权利要求23所述的接入网设备，其特征在于，所述时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
  25. 根据权利要求23或24所述的接入网设备，其特征在于，所述通信单元还用于向源接入网设备发送切换命令，所述切换命令包括所述至少一个波束的标识、所述至少一个波束中的每个波束上的所述上行免授权资源和所述终端设备使用所述至少一个波束中的每个波束上的所述上行免授权资源的时域信息。
  26. 根据权利要求23至25中任一项所述的接入网设备，其特征在于，所述波束测量信息包括波束标识信息，以及所述波束标识信息所标识的波束的测量值。
  27. 根据权利要求23至26中任一项所述的接入网设备，其特征在于，所述波束测量信息包括所述终端设备测量的所述目标小区的波束的测量值排序列表。
  28. 根据权利要求23至27中任一项所述的接入网设备，其特征在于，所述通信单元具体用于：
    通过Xn接口接收源接入网设备发送的所述测量报告。
  29. 根据权利要求28所述的接入网设备，其特征在于，所述通信单元具体用于：
    通过Xn接口接收所述源接入网设备发送的切换请求，所述切换请求包括所述测量报告。
  30. 根据权利要求23至27中任一项所述的接入网设备，其特征在于，所述通信单元具体用于：
    通过NG接口接收核心网设备从源接入网设备处转发的所述测量报告。
  31. 根据权利要求30所述的接入网设备，其特征在于，所述通信单元具体用于：
    通过NG接口接收所述核心网设备发送的切换准备消息，所述切换准备消息包括所述测量报告。
  32. 根据权利要求23至31中任一项所述的接入网设备，其特征在于，所述处理单元具体用于：
    根据所述波束测量信息、所述终端设备的移动速度和所述终端设备测量的所述目标小区的波束的覆盖范围，配置所述至少一个波束。
  33. 一种接入网设备，其特征在于，应用于第五代移动通信技术5G通信***中无随机接入信道RACH流程的小区切换，其中，终端设备需要从源小区切换至目标小区，所述目标小区支持多波束通信；
    所述接入网设备包括：
    通信单元，用于从所述终端设备接收针对所述目标小区的第一测量报告，所述第一测量报告包括波束测量信息；
    所述通信单元，还用于向目标接入网设备发送第二测量报告，或者，所述源接入网设备向核心网设备发送所述第二测量报告，以使所述核心网设备将所述测量报告转发给所述目标接入网设备，其中，所述第二测量报告为所述第一测量报告，或者所述第二测量报告为包括所述终端设备测量的所述目 标小区的波束的测量值排序列表的测量报告。
  34. 根据权利要求33所述的接入网设备，其特征在于，
    所述通信单元，还用于接收所述目标接入网设备发送的切换命令，所述切换命令包括至少一个波束的标识、所述至少一个波束中的每个波束上的上行免授权资源和所述终端设备使用所述至少一个波束中的每个波束上的所述上行免授权资源的时域信息，其中，所述至少一个波束和所述至少一个波束中的每个波束上的上行免授权资源为根据所述波束测量信息确定的；
    所述通信单元，还用于向所述终端设备发送所述切换命令。
  35. 根据权利要求34所述的接入网设备，其特征在于，所述时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
  36. 根据权利要求33至35中任一项所述的接入网设备，其特征在于，所述波束测量信息包括波束标识信息，以及所述波束标识信息所标识的波束的测量值。
  37. 根据权利要求34至36中任一项所述的接入网设备，其特征在于，所述通信单元具体用于：
    通过Xn接口向所述目标接入网设备发送切换请求，所述切换请求包括所述第二测量报告。
  38. 根据权利要求34至36中任一项所述的接入网设备，其特征在于，所述通信单元具体用于：
    向所述核心网设备发送所述第二测量报告，以使所述核心网设备通过NG接口向所述目标接入网设备发送切换准备消息，所述切换准备消息包括所述第二测量报告。
  39. 根据权利要求33至38中任一项所述的接入网设备，其特征在于，在所述通信单元从所述终端设备接收所述第一测量报告之前，所述通信单元还用于向所述终端设备发送测量配置信息，所述测量配置信息指示所述终端设备测量所述目标小区，以及上报所述第一测量报告。
  40. 一种终端设备，其特征在于，应用于第五代移动通信技术5G通信***中无随机接入信道RACH流程的小区切换，其中，所述终端设备需要从源小区切换至目标小区，所述目标小区支持多波束通信；
    所述终端设备包括：
    处理单元，用于测量所述目标小区，以及生成针对所述目标小区的测量报告，所述测量报告包括波束测量信息；
    通信单元，用于向源接入网设备发送所述测量报告；
    所述通信单元，还用于接收所述源接入网设备发送的切换命令，所述切换命令包括至少一个波束的标识、所述至少一个波束中的每个波束上的上行免授权资源和所述终端设备使用所述至少一个波束中的每个波束上的所述上行免授权资源的时域信息，其中，所述至少一个波束和所述至少一个波束中的每个波束上的上行免授权资源为根据所述波束测量信息确定的；
    所述处理单元，还用于根据所述切换命令，在所述至少一个波束上发送 无线资源控制RRC重配置完成消息，和/或，在所述至少一个波束上监听下行控制信道PDCCH。
  41. 根据权利要求40所述的终端设备，其特征在于，所述波束测量信息包括波束标识信息，以及所述波束标识信息所标识的波束的测量值。
  42. 根据权利要求40或41所述的终端设备，其特征在于，所述时域信息包括子帧SF序号、***帧号SFN范围、时间窗中的至少一种。
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