WO2019096000A1 - 切换方法、终端和网络侧设备 - Google Patents

切换方法、终端和网络侧设备 Download PDF

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Publication number
WO2019096000A1
WO2019096000A1 PCT/CN2018/112838 CN2018112838W WO2019096000A1 WO 2019096000 A1 WO2019096000 A1 WO 2019096000A1 CN 2018112838 W CN2018112838 W CN 2018112838W WO 2019096000 A1 WO2019096000 A1 WO 2019096000A1
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WIPO (PCT)
Prior art keywords
bwp
target cell
information
terminal
cell
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PCT/CN2018/112838
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English (en)
French (fr)
Inventor
许萌
谌丽
梁靖
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电信科学技术研究院有限公司
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Application filed by 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to EP18877883.1A priority Critical patent/EP3713303A4/en
Priority to JP2020527784A priority patent/JP7179062B2/ja
Priority to KR1020207017476A priority patent/KR102340706B1/ko
Priority to US16/764,848 priority patent/US11337122B2/en
Publication of WO2019096000A1 publication Critical patent/WO2019096000A1/zh

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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
    • H04W36/0011—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
    • 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
    • H04W36/0055—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
    • 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
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • 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
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment

Definitions

  • the present invention relates to the field of communications, and in particular, to a handover method, a terminal, and a network side device.
  • the network bandwidth can be much larger than the terminal transmission bandwidth, and the network side will be the network side bandwidth. It is divided into multiple parts, that is, multiple BWPs (Bandwidth Part), one or more BWPs are configured to the terminal, and a part of the BWPs can be activated for transmission. From the perspective of the terminal, signaling and data transmission can only be performed on the active BWP.
  • BWPs Bandwidth Part
  • the cell bandwidth of the network side is less than or equal to the terminal receiving bandwidth of 20 MHz. Therefore, the network side always allocates the total uplink and downlink bandwidth of the cell to the terminal, and the terminal can have the entire cell bandwidth. Work on.
  • the bandwidth on the network side can be as high as 400 MHz, which is much larger than the receiving capability of the terminal.
  • the concept of the BWP is introduced, that is, the large bandwidth of the network side is divided into multiple partial bandwidth BWPs, one or more BWPs are configured to the terminal, and the partially configured BWP is activated for the terminal to perform uplink and downlink transmission, and the activated downlink BWP is called Active DL (downlink) BWP, active uplink BWP is called active UL (uplink) BWP.
  • Active DL (downlink) BWP active uplink BWP
  • active UL (uplink) BWP active UL (uplink) BWP.
  • the R15 version for a terminal, only one DL BWP and one UL BWP are allowed to be activated at a time, and the inactive BWP cannot perform uplink and downlink signaling and data transmission.
  • a plurality of BWPs can be configured on the network side, but for each UE (User Equipment), a PCell (Primary Cell), a PScell (Primary Secondary Cell), and each SCell (Secondary)
  • the cell, the secondary serving cell has an associated SSB (Synchronized Signal Block) as a cell-level SSB, and the SSB can serve as a time reference of the serving cell and RRM of the serving cell (RadioResource Management). , Radio Resource Management) measured SSB.
  • SSB Synchrom Signal Block
  • RRM RadioResource Management
  • Radio Resource Management Radio Resource Management
  • the UE When the UE initially accesses the cell, the UE can access the initial BWP, and the UE can complete the random access process.
  • the network side can configure multiple BWPs for the UE, and can configure a default BWP. Which BWP is activated or deactivated is implemented by the underlying layer, and the upper layer is not aware.
  • Initial BWP (initial BWP): For the initially accessed terminal, the initial BWP (initial BWP) can only be used to complete the connection establishment process.
  • the initial BWP includes basic cell broadcast signaling, random access resources, and the like.
  • the network-side base station can configure a default BWP for the connected terminal.
  • the terminal can perform some basic operations on the default BWP, such as maintaining cell connection, performing cell measurement, and initiating random access.
  • Configure BWP (configured BWP): The BWP configured on the network side for a single connected terminal.
  • Each BWP can have different configuration contents, such as PUCCH (Physical Uplink Control Channel) configuration, SPS (Semi-Persistent Scheduling, half). Continuous scheduling) configuration, etc.
  • PUCCH Physical Uplink Control Channel
  • SPS Semi-Persistent Scheduling, half. Continuous scheduling
  • the DL BWP and the UL BWP can be configured separately.
  • Activate BWP In the BWP configured on the network side, the terminal only uses the activated BWP for uplink and downlink transmission.
  • the active BWP is divided into active DL BWP and active UL BWP.
  • the UE When the handover is performed, the UE reports the measurement report to the network side, and the network side triggers the handover by determining the measurement result, and the source cell sends the configuration information of the UE to the target cell through the handover preparation message, which includes the configuration of the UE-side bearer and the measurement configuration. information.
  • the network side may choose to accept the current configuration of the UE or select to modify the partial configuration, or if the network side cannot interpret the configuration information and select the full configuration, the source side sends a handover command including the destination side reconfiguration message to the UE.
  • the handover command may include a dedicated random access configuration for the UE to access the target cell, for the UE to initiate a non-contention random access procedure.
  • the UE may obtain random access related configuration information of the target cell by using a handover command.
  • the embodiment of the present invention provides a handover problem, a terminal, and a network side device, which are used to solve the technical problem that the terminal accesses the BWP selection when the terminal switches to a cell with multiple BWPs when the terminal performs handover.
  • an embodiment of the present invention provides a handover method, which is applied to a terminal, where the method includes:
  • the network-side target cell Receiving, by the network-side target cell, a handover command sent by the source cell, where the handover command includes access bandwidth information of the target cell; the access bandwidth information is information of the determined BWP for accessing the target cell;
  • the access bandwidth information is:
  • the target cell includes BWP information of a cell level SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, and the determined BWP is a BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the BWP corresponding to the Random access resource, random access code, explicit or implicit indication information of the default BWP resource location, and specified BWP indication information.
  • an embodiment of the present invention provides a handover method, which is applied to a network side, and includes:
  • the handover command includes access bandwidth information of the target cell of the network, and the BWP used by the terminal to access the target cell according to the access bandwidth information.
  • the access bandwidth information is:
  • the target cell includes BWP information of a cell level SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, and the determined BWP is a BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the BWP corresponding to the Random access resource, random access code, explicit or implicit indication information of the default BWP resource location, and specified BWP indication information.
  • an embodiment of the present invention provides a terminal, where the terminal includes:
  • a receiving module configured to receive a handover command sent by the target cell on the network side, where the handover command includes access bandwidth information of the target cell, where the access bandwidth information is determined to be used for accessing the target cell.
  • BWP information
  • An access module configured to access the target cell on the BWP, to enable the terminal to switch from the source cell to the target cell.
  • the access bandwidth information is:
  • the target cell includes BWP information of a cell level SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, and the determined BWP is a BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the BWP corresponding to the Random access resource, random access code, explicit or implicit indication information of the default BWP resource location, and specified BWP indication information.
  • an embodiment of the present invention provides a network side device, including:
  • a sending module configured to send a handover command to the terminal by using the source cell, where the handover command includes access bandwidth information of the target cell of the network side, where the terminal is used to obtain the access location according to the access bandwidth information. Determining a BWP of the target cell to the target cell;
  • a receiving module configured to receive a random access request that is sent by the terminal by using the BWP to access the target cell, to complete a random access procedure, to enable the terminal to switch from the source cell to the target cell .
  • the access bandwidth information is:
  • the target cell includes BWP information of a cell level SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, the determined BWP is the BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the BWP corresponding to the Random access resource, random access code, explicit or implicit indication information of the default BWP resource location, and specified BWP indication information.
  • an embodiment of the present invention provides a computer apparatus, where the apparatus includes a processor, where the processor is configured to implement a method as described in the first aspect or the second aspect when executing a computer program stored in a memory. A step of.
  • an embodiment of the present invention provides a computer readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method of the first aspect or the second aspect is implemented. step.
  • an embodiment of the present invention provides a terminal, where the terminal includes:
  • a processor for reading a program in the memory performing the following process:
  • a handover command sent by the network-side target cell by the source cell where the handover command includes access bandwidth information of the target cell;
  • the access bandwidth information is a determined partial bandwidth BWP for accessing the target cell. information;
  • a transceiver for receiving and transmitting data under the control of a processor.
  • the access bandwidth information is:
  • the target cell includes BWP information of the cell level synchronization signal block SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, the determined BWP is the BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the BWP corresponding to the Random access resource, random access code, explicit or implicit indication information of the default BWP resource location, and specified BWP indication information.
  • an embodiment of the present invention provides a network side device, where the device includes:
  • a processor for reading a program in the memory performing the following process:
  • the handover command includes access bandwidth information of the target cell of the network, and the BWP used by the terminal to access the target cell according to the access bandwidth information.
  • a transceiver for receiving and transmitting data under the control of a processor.
  • the access bandwidth information is:
  • the target cell includes BWP information of a cell level SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, and the determined BWP is a BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the BWP corresponding to the Random access resource, random access code, explicit or implicit indication information of the default BWP resource location, and specified BWP indication information.
  • the terminal can switch to a cell with multiple BWPs, and the terminal can switch to the BWP of the cell-level SSB of the target cell, or the default BWP configured on the network side, or switch to the SSB associated with the measurement object.
  • the corresponding BWP or the network side configures the access BWP indication information in the handover command, and the allocation terminal accesses any BWP. This solves the problem of selecting the access BWP when the terminal switches to multiple BWP cells, and enhances the terminal handover to the target cell. Flexibility and improved user experience.
  • FIG. 1 is a flowchart of a method for switching a terminal side according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a network side handover method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a network side device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • the handover command sent by the source cell to the source cell includes the access bandwidth information of the target cell, so that the terminal can follow the access.
  • the BWP access target cell used for accessing the target cell determined by the bandwidth information.
  • a first embodiment of the present invention provides a handover method, which is applied to a terminal, where the method includes:
  • S102 Access the target cell on the BWP, so that the terminal switches from the source cell to the target cell.
  • the terminal takes the UE as an example, and measures the signal on the network (for example, the mobile network) side of the UE, and then the UE sends a measurement report to the currently connected source cell, and if the currently connected source cell receives the measurement report, if the UE is determined, If the handover to the target cell is required, the handover preparation request is sent to the target cell, and the target cell receives the handover preparation request of the source cell, configures the UE, and sends a handover command to the UE through the source cell, where the UE receives the target cell through the source cell. And a handover command, where the handover command includes access bandwidth information of the target cell on the network side.
  • the handover command includes access bandwidth information of the target cell on the network side.
  • the access bandwidth information is information for accessing the BWP of the target cell, and the handover command may include random access configuration information of the target BWP configured by the target cell for the UE.
  • the random access configuration information includes public random access configuration information of the BWP and/or dedicated random access configuration information of the BWP allocated by the target cell to the UE.
  • step S102 is performed, where step S102 includes:
  • the BWP access target cell that is used by the UE to access the target cell according to the access bandwidth information in the handover command includes the UE initiating a random access procedure, and accessing the target cell on the BWP.
  • the access bandwidth information in the handover command is the determined BWP information used to access the target cell.
  • the indication information in the handover command or the access bandwidth information further includes indication information for indicating the determined BWP, and the indication information includes one or more of the following information: a random access resource corresponding to the BWP, and a random The access code, the explicit or implicit indication information of the default BWP resource location, and the indication information of the specified BWP.
  • the explicit indication information is, for example, an indication indicating which resource location BWP is the default BWP
  • the implicit indication information is, for example, the first BWP or the last BWP in the access bandwidth information list.
  • the embodiment may have at least the following implementation manners, but is not limited to the following implementation manners:
  • Manner 1 The UE receives the handover command, where the handover command includes the access bandwidth information of the target cell, where the access bandwidth information is the BWP information of the target cell including the cell level SSB.
  • the BWP Determining, by the UE, the BWP access target cell for accessing the target cell according to the access bandwidth information, where the BWP is a BWP including a cell level SSB; for example, an initial BWP;
  • the UE accesses the target cell on the BWP including the cell level SSB;
  • the UE sends a reconfiguration complete message to the target cell.
  • the UE receives the handover command, where the handover command includes the access bandwidth information of the target cell, where the access bandwidth information is the BWP information of the SSB associated with the measurement object configured by the terminal in the target cell;
  • the measurement object is a measurement object corresponding to the measurement report that triggers the switching;
  • the BWP accesses the target cell according to the access bandwidth information, and the BWP is the BWP where the SSB associated with the measurement object configured by the terminal is located;
  • the UE accesses the target cell on the BWP where the SSB associated with the measurement object configured by the terminal is located.
  • the UE sends a reconfiguration complete message to the target cell.
  • the UE receives the handover command, where the handover command includes the access bandwidth information of the target cell, where the access bandwidth information is default BWP information in the target cell.
  • the BWP access target cell for accessing the target cell according to the access bandwidth information, where the part of the bandwidth is a default BWP included in the target cell;
  • the UE accesses the target cell on the default BWP
  • the UE sends a reconfiguration complete message to the target cell.
  • the UE receives the handover command, where the handover command includes the access bandwidth information of the target cell, where the access bandwidth information is the BWP information specified in the target cell.
  • the UE accesses the target cell on the BWP indicated by the indication;
  • the UE sends a reconfiguration complete message to the target cell.
  • an indication may be used to indicate which BWP is the BWP that the UE accesses the target cell.
  • an embodiment of the present invention provides a handover method, which is applicable to a network side device, including:
  • the source cell sends a handover command to the terminal, where the handover command includes access bandwidth information of the target cell of the network side, where the terminal is used to access the target according to the access bandwidth information.
  • the BWP of the cell accesses the target cell;
  • S202 Receive a random access request that is sent by the terminal to the target cell by using the BWP, and complete a random access procedure, so that the terminal switches from the source cell to the target cell.
  • the terminal takes the UE as an example.
  • the UE measures the network (for example, the mobile network) side, and then the UE sends a measurement report to the currently connected source cell.
  • the source cell receives the measurement report, if the UE determines that the UE needs to switch.
  • the source cell sends a handover preparation request to the network-side target cell, and the target cell receives the handover preparation request of the source cell, configures the UE, and sends a handover command to the UE by using the source cell, where the handover command includes
  • the access bandwidth information of the network-side target cell is determined according to the access bandwidth information, and the access bandwidth information is used to access the target cell.
  • the BWP information may include the random access configuration information of the target BWP configured by the target cell for the UE.
  • the random access configuration information includes public random access configuration information of the BWP and/or dedicated random access configuration information of the BWP allocated by the target cell to the UE.
  • the target cell is a cell having multiple BWPs.
  • the indication information in the handover command or the access bandwidth information further includes indication information for indicating the determined BWP, and the indication information includes one or more of the following information: a random access resource corresponding to the BWP, and a random The access code, the explicit or implicit indication information of the default BWP resource location, and the indication information of the specified BWP.
  • the explicit indication information is, for example, an indication indicating which resource location BWP is the default BWP
  • the implicit indication information is, for example, the first BWP or the last BWP in the access bandwidth information list.
  • step S202 is performed, and step S202 includes:
  • the network side device may reconfigure the UE or the like.
  • the embodiment may have at least the following implementation manners, but is not limited to the following implementation manners:
  • the source cell sends a handover command to the UE, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the BWP information of the target cell including the cell level SSB; after receiving the handover command, the UE selects the BWP access target cell for accessing the target cell according to the access bandwidth information.
  • the part of the bandwidth is a BWP including a cell level SSB;
  • the UE may be reconfigured.
  • the source cell sends a handover command to the UE, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the BWP information of the SSB associated with the measurement object configured by the terminal in the target cell; after receiving the handover command, the UE uses the access bandwidth information to determine the access for the access.
  • the BWP of the target cell is connected to the target cell, and the BWP is a BWP in which the SSB associated with the measurement object configured by the terminal in the target cell is located, where the measurement object is a measurement object corresponding to the measurement report that triggers the handover;
  • the UE may be reconfigured.
  • the source cell sends a handover command to the UE, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the default BWP information in the target cell; after receiving the handover command, the UE determines, according to the access bandwidth information, the BWP access target cell for accessing the target cell, Part of the bandwidth is the default BWP;
  • the UE may be reconfigured.
  • the source cell sends a handover command to the UE, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the BWP information specified in the target cell; after receiving the handover command, the UE selects the BWP access target cell for accessing the target cell according to the access bandwidth information, Part of the bandwidth is the BWP explicitly indicated in the switching command;
  • an indication may be used to indicate which BWP is the BWP that the UE accesses the target cell.
  • the UE may be reconfigured.
  • an embodiment of the present invention provides a terminal, where the terminal includes:
  • the receiving module 301 is configured to receive a handover command sent by the network-side target cell by using the source cell, where the handover command includes access bandwidth information of the target cell, where the access bandwidth information is determined to be used for accessing the target cell. BWP information.
  • the access module 302 is configured to access the target cell on the BWP, so that the terminal switches from the source cell to the target cell.
  • the UE takes the UE as an example, and the UE measures the signal on the network (for example, the mobile network) side, and then the UE sends a measurement report to the currently connected source cell.
  • the UE measures the signal on the network (for example, the mobile network) side, and then the UE sends a measurement report to the currently connected source cell.
  • the cell sends a handover preparation request to the target cell, and after receiving the handover preparation request of the source cell, the target cell is configured for the UE, and the handover command is sent to the UE by the source cell, and the receiving module 301 receives the network-side target cell by using the source cell.
  • the switching command includes access bandwidth information.
  • the access bandwidth information is information for accessing the BWP of the target cell, and the handover command may include random access configuration information of the target BWP configured by the target cell for the UE.
  • the random access configuration information includes public random access configuration information of the BWP and/or dedicated random access configuration information of the BWP allocated by the target cell to the UE.
  • the access module 302 accesses the target cell on the determined BWP, so that the terminal switches from the source cell to the target cell.
  • the UE includes the UE to initiate a random access procedure after the determined BWP access target cell for accessing the target cell by using the access bandwidth information in the handover command, and the access module 302 connects to the BWP. Enter the target cell.
  • the access bandwidth information in the handover command is the determined BWP information used to access the target cell.
  • the indication information in the handover command or the access bandwidth information further includes indication information for indicating the determined BWP, and the indication information includes one or more of the following information: a random access resource corresponding to the BWP, and a random The access code, the explicit or implicit indication information of the default BWP resource location, and the indication information of the specified BWP.
  • the embodiment may have at least the following implementation manners, but is not limited to the following implementation manners:
  • the receiving module 301 receives the handover command, where the handover command includes the access bandwidth information of the target cell, where the access bandwidth information is the BWP information of the target cell including the cell level SSB; the access bandwidth information is determined.
  • BWP information for accessing the target cell the BWP is a BWP including a cell level SSB; for example, an initial BWP;
  • the access module 302 accesses the target cell on the BWP including the cell level SSB;
  • the UE sends a reconfiguration complete message to the target cell.
  • the receiving module 301 receives the handover command, where the handover command includes the access bandwidth information of the target cell, where the access bandwidth information is the BWP information of the SSB associated with the measurement object configured by the terminal in the target cell;
  • the measurement object is a measurement object corresponding to the measurement report that triggers the handover;
  • the access bandwidth information is the determined BWP information for accessing the target cell, and the BWP is the SSB associated with the measurement object configured by the terminal. Where the BWP is located;
  • the access module 302 accesses the target cell on the BWP where the SSB associated with the measurement object configured by the terminal is located.
  • the UE sends a reconfiguration complete message to the target cell.
  • the receiving module 301 receives a handover command, where the handover command includes access bandwidth information of the target cell, where the access bandwidth information is default BWP information in the target cell, and the access bandwidth information is used for determining. Accessing the BWP information of the target cell, where the part of the bandwidth is a default BWP in the target cell;
  • the access module 302 accesses the target cell on the default BWP
  • the UE sends a reconfiguration complete message to the target cell.
  • the receiving module 301 receives a handover command, where the handover command includes access bandwidth information of the target cell, where the access bandwidth information is BWP information specified in the target cell, and the access bandwidth information is determined for access.
  • BWP information of the target cell where the BWP is a BWP explicitly indicated in the handover command;
  • the access module 302 accesses the target cell on the BWP indicated by the indication
  • the UE sends a reconfiguration complete message to the target cell.
  • an indication may be used to indicate which BWP is the BWP that the UE accesses the target cell.
  • an embodiment of the present invention provides a network side device, including:
  • the sending module 401 is configured to send a handover command to the terminal by using the source cell, where the handover command includes access bandwidth information of the target cell of the network side, so that the terminal is used for determining according to the access bandwidth information.
  • the receiving module 402 is configured to receive a random access request that is sent by the terminal to the target cell by using the BWP, to complete a random access procedure, to enable the terminal to switch from the source cell to the target Community.
  • the UE takes the UE as an example.
  • the UE measures the signal on the network (for example, the mobile network) side, and then the UE sends a measurement report to the currently connected source cell.
  • the source cell receives the measurement report, if the UE needs to switch to the target cell, the source cell And sending a handover preparation request to the network-side target cell, and the target cell receives the handover preparation request of the source cell, and then configures the UE, and the sending module 401 in the network-side device sends a handover command to the UE by using the source cell, where the handover command is sent.
  • the access bandwidth information of the network-side target cell is included, and the BWP access target cell used for accessing the target cell is determined according to the access bandwidth information; wherein the access bandwidth information is used to access the target
  • the information about the BWP of the cell may include the random access configuration information of the target BWP configured by the target cell for the UE.
  • the random access configuration information includes public random access configuration information of the BWP and/or dedicated random access configuration information of the BWP allocated by the target cell to the UE.
  • the indication information in the handover command or the access bandwidth information further includes indication information for indicating the determined BWP, and the indication information includes one or more of the following information: a random access resource corresponding to the BWP, and a random The access code, the explicit or implicit indication information of the default BWP resource location, and the indication information of the specified BWP.
  • the explicit indication information is, for example, an indication indicating which resource location BWP is the default BWP
  • the implicit indication information is, for example, the first BWP or the last BWP in the access bandwidth information list.
  • the sending module 401 sends a handover command to the UE by using the source cell
  • the receiving module 402 receives a random access request that is sent by the UE to the target cell by using the BWP, and completes a random access procedure, so that the UE performs the The source cell switches to the target cell.
  • the network side device may reconfigure the UE.
  • the embodiment may have at least the following implementation manners, but is not limited to the following implementation manners:
  • the sending module 401 sends a handover command to the UE, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the BWP information of the target cell including the cell level SSB; after receiving the handover command, the UE selects the BWP access target cell for accessing the target cell according to the access bandwidth information.
  • the BWP is a BWP access target cell including a cell level SSB;
  • the receiving module 402 receives a random access request for accessing the target cell by using the BWP including the cell level SSB, and completes a random access procedure, so that the UE is handed over from the source cell to the network side target cell. .
  • the UE After the network side device receives the reconfiguration complete message of the UE, the UE may be reconfigured.
  • the sending module 401 sends a handover command to the UE by using the source cell, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the BWP information of the SSB associated with the measurement object configured by the terminal in the target cell; after receiving the handover command, the UE uses the access bandwidth information to determine the access for the access.
  • a BWP of the target cell accesses the target cell, where the part of the bandwidth is a BWP in which the SSB associated with the measurement object configured by the terminal is located in the target cell, where the measurement object is a measurement object corresponding to the measurement report that triggers the handover;
  • the receiving module 402 receives a random access request for accessing the target cell by using the BWP in which the SSB associated with the measurement object configured by the terminal is located, and completes a random access procedure, so that the UE is used to obtain the UE from the source cell. Switching to the network side target cell.
  • the UE After the network side device receives the reconfiguration complete message of the UE, the UE may be reconfigured.
  • the sending module 401 sends a handover command to the UE by using the source cell, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the default BWP information in the target cell; after receiving the handover command, the UE determines, according to the access bandwidth information, the BWP access target cell for accessing the target cell, BWP is the default BWP;
  • the receiving module 402 receives the random access request for accessing the target cell by using the default BWP, and completes a random access procedure, so that the UE is handed over from the source cell to the network side target cell. After the network side device receives the reconfiguration complete message of the UE, the UE may be reconfigured.
  • the sending module 401 sends a handover command to the UE by using the source cell, where the handover command includes access bandwidth information configured for the UE.
  • the access bandwidth information is the BWP information specified in the target cell; after receiving the handover command, the UE selects the BWP access target cell for accessing the target cell according to the access bandwidth information, BWP is the BWP explicitly indicated in the switching command;
  • the receiving module 402 receives the random access request that the UE sends to the target cell by using the BWP that is explicitly indicated by the handover command, and completes a random access procedure, so that the UE switches from the source cell to the network side. Target cell.
  • an indication may be used to indicate which BWP is the BWP that the UE accesses the target cell.
  • the UE may be reconfigured.
  • an embodiment of the present invention provides a computer apparatus, where the apparatus includes a processor, and the processor is configured to implement the steps of the method as described in Embodiment 1 or Embodiment 2 when executing the computer program stored in the memory. .
  • an embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program, where the computer program is executed by a processor to implement the steps of the method as described in Embodiment 1 or Embodiment 2.
  • an embodiment of the present invention provides a network side device, which can be implemented as follows.
  • FIG. 5 is a schematic structural diagram of a network side device, as shown in the figure, the network side device includes:
  • the processor 500 is configured to read a program in the memory 520 and perform the following process:
  • the handover command includes access bandwidth information of the target cell of the network, and the BWP used by the terminal to access the target cell according to the access bandwidth information.
  • the transceiver 510 is configured to receive and transmit data under the control of the processor 500.
  • the access bandwidth information is:
  • the target cell includes BWP information of a cell level SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, and the determined BWP is a BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the random corresponding to the BWP An explicit or implicit indication information of an access resource, a random access code, a default BWP resource location, and a specified BWP indication information.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 510 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • an embodiment of the present invention provides a terminal, which can be implemented as follows.
  • FIG. 6 is a schematic structural diagram of a terminal. As shown in the figure, the terminal includes:
  • the processor 600 is configured to read a program in the memory 620 and perform the following process:
  • a handover command sent by the network-side target cell by the source cell where the handover command includes access bandwidth information of the target cell;
  • the access bandwidth information is a determined partial bandwidth BWP for accessing the target cell. information;
  • the transceiver 610 is configured to receive and transmit data under the control of the processor 600.
  • the access bandwidth information is:
  • the target cell includes BWP information of the cell level synchronization signal block SSB, and the determined BWP is a BWP including a cell level SSB; or
  • the default BWP information in the target cell where the determined BWP is the default BWP; or
  • the BWP information specified in the target cell, and the determined BWP is a BWP explicitly indicated in the handover command.
  • the switching command or the access bandwidth information further includes indication information for indicating the determined BWP, where the indication information includes one or more of the following information: the random corresponding to the BWP An explicit or implicit indication information of an access resource, a random access code, a default BWP resource location, and a specified BWP indication information.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • the terminal can switch to a cell with multiple BWPs, and the terminal can switch to the BWP of the cell-level SSB of the target cell, or the default BWP configured on the network side, or switch to the SSB associated with the measurement object.
  • the corresponding BWP or the network side configures the access BWP indication information in the handover command, and the allocation terminal accesses any BWP.

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Abstract

切换方法、终端和网络侧设备，包括，终端接收网络侧设备通过源小区发送的切换命令，所述切换命令中包括接入带宽信息；终端按照所述接入带宽信息在确定的部分带宽上接入目标小区，用以使所述终端从所述源小区切换到所述网络侧目标小区。通过采用该技术方案，解决了切换到多部分带宽小区的部分带宽接入选择问题，增强了终端切换到目标小区的灵活性，提高了用户体验。

Description

切换方法、终端和网络侧设备
本申请要求在2017年11月17日提交中国专利局、申请号为201711149114.2、发明名称为“切换方法、终端和网络侧设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及切换方法、终端和网络侧设备。
背景技术
在新一代无线通信***，如5G或NR(New RAT，新型无线接入技术；RAT：radio access technology，无线接入技术)***中，网络带宽可以远大于终端传输带宽，网络侧将网络侧带宽分为多个部分，即多个BWP(Bandwidth Part，部分带宽)，将其中一个或多个BWP配置给终端，并且可以激活其中一部分BWP进行传输。从终端角度，只能在激活BWP上进行信令和数据的传输。
在传统LTE(Long Term Evolution，长期演进)***中，网络侧角度的小区带宽小于或等于终端接收带宽20MHz，因此网络侧总是将小区的上下行总带宽配置给终端，终端可以在整个小区带宽上工作。在NR***中，网络侧带宽可以高达400MHz，远远大于终端的接收能力。因此，引入BWP的概念，即将网络侧的大带宽划分为多个部分带宽BWP，将一个或多个BWP配置给终端，并激活部分配置的BWP为终端进行上下行传输，激活的下行BWP称为active DL(downlink，下行)BWP，激活的上行BWP称为active UL(uplink，上行)BWP。在R15版本中，对终端来说，一个时刻只允许激活一个DL BWP和一个UL BWP，非激活的BWP不能进行上下行信令和数据传输。
网络侧可以配置多个BWP，但对于每一个UE(User Equipment，用户终端)而言，PCell(Primary Cell，主服务小区)、PScell(Primary Secondary Cell， 主辅服务小区)和每一个SCell(Secondary Cell，辅服务小区)在对应的频点上都有一个相关联的SSB(Synchronized Signal Block，同步信号块)为小区级SSB，该SSB可以作为服务小区的时间参考和服务小区的RRM(RadioResource Management，无线资源管理)测量的SSB。UE进行测量时，每一个需要测量的SS block频点需要配置成单独的测量对象(measurement object)。UE初始接入小区时，可以接入initial BWP，可以实现UE完成随机接入过程。网络侧可以为UE配置多个BWP，并可以配置默认的BWP，选择哪一个BWP激活或去激活由底层实现，高层不感知。
初始BWP(initial BWP)：对于初始接入的终端来说，只能使用初始BWP(initial BWP)完成连接建立过程。初始BWP中包含基本的小区广播信令和随机接入资源等。
默认BWP(default BWP)：网络侧基站可以给连接态终端配置一个默认BWP，终端可以在默认BWP上进行一些基本工作，如保持小区连接、进行小区测量、发起随机接入等。
配置BWP(configured BWP)：网络侧为单个连接态终端配置的BWP，各个BWP可以有不同的配置内容，如PUCCH(Physical Uplink Control Channel，物理上行控制信道)配置、SPS(Semi-Persistent Scheduling，半持续性调度)配置等。DL BWP和UL BWP可以分别配置。
激活BWP(active BWP)：在网络侧为配置的BWP中，终端只有使用激活的BWP进行上下行传输。激活BWP分为active DL BWP和active UL BWP。
在进行切换时，UE上报测量报告给网络侧，网络侧通过判断测量结果触发切换，源小区将UE的配置信息通过切换准备消息发送给目标小区，其中包含UE侧承载的配置情况以及测量配置等信息。网络侧可以选择接受UE当前配置或选择修改部分配置，或如果网络侧不能解读该配置信息选择全配置，通过源侧发送包含目的侧重配消息的切换命令给UE。切换命令中可以包含用于UE接入到目标小区的专用随机接入配置，用于UE发起非竞争的随机接入过程。UE可以通过切换命令获得目标小区的随机接入相关配置信息。
可知，现有技术中至少存在如下技术问题，当终端发生切换时，终端只能切换到不划分BWP的小区，对于切换到具有多个BWP的小区，接入BWP的选择问题尚未得到解决。
发明内容
本发明实施例通过提供切换方法、终端和网络侧设备，用于解决现有技术中当终端发生切换时，终端切换到具有多个BWP的小区时接入BWP选择的技术问题。
第一方面，本发明一实施例提供了一种切换方法，应用于终端，该方法包括：
接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP的信息；
在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
可选的，所述接入带宽信息是：
所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
可选的，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式 指示信息、指定的BWP的指示信息。
第二方面，本发明一实施例提供了一种切换方法，应用于网络侧，包括：
通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区。
可选的，所述接入带宽信息是：
所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
可选的，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
第三方面，本发明一实施例提供了一种终端，所述终端包括：
接收模块，用于接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息。
接入模块，用于在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
可选的，所述接入带宽信息是：
所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
可选的，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
第四方面，本发明一实施例提供了一种网络侧设备，包括：
发送模块，用于通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
接收模块，用于接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区。
可选的，所述接入带宽信息是：
所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令 中显式指示的BWP。
可选的，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
第五方面，本发明一实施例提供了一种计算机装置，所述装置包括处理器，所述处理器用于执行存储器中存储的计算机程序时实现如第一方面或第二方面实施例所述方法的步骤。
第六方面，本发明一实施例提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如第一方面或第二方面实施例所述方法的步骤。
第七方面，本发明一实施例提供了一种终端，终端包括：
处理器，用于读取存储器中的程序，执行下列过程：
在终端接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的部分带宽BWP信息；
让终端在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区；
收发机，用于在处理器的控制下接收和发送数据。
可选的，所述接入带宽信息是：
所述目标小区中包含小区级同步信号块SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令 中显式指示的BWP。
可选的，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
第八方面，本发明一实施例提供了一种网络侧设备，设备中包括：
处理器，用于读取存储器中的程序，执行下列过程：
通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区；
收发机，用于在处理器的控制下接收和发送数据。
可选的，所述接入带宽信息是：
所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
可选的，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
本发明实施例中提供的一个或多个技术方案，至少具有如下技术效果：
通过采用本发明实施例提供的技术方案，终端能够切换到具有多个BWP的小区，终端可以切换到目标小区的小区级SSB的BWP，或者网络侧配置的默认BWP或者切换到测量对象关联的SSB对应的BWP或者网络侧在切换命令中配置接入BWP指示信息，分配终端接入任意BWP，这样解决了终端切换到多BWP小区时的接入BWP的选择问题，增强了终端切换到目标小区的灵活性，提高了用户体验。
附图说明
图1为本发明实施例提供的终端侧的切换方法的流程图；
图2为本发明实施例提供的网络侧的切换方法的流程图；
图3为本发明实施例提供的终端的示意图；
图4为本发明实施例提供的网络侧设备的示意图；
图5为本发明实施例提供的网络侧设备的示意图；
图6为本发明实施例提供的终端的示意图。
具体实施方式
为了解决上述技术问题，本发明实施例中的技术方案的总体思路如下：网络侧目标小区通过源小区发送的切换命令中包括目标小区的接入带宽信息，用以使终端能够按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区。通过采用该技术方案，解决了切换到多BWP小区时接入BWP的选择问题，增强了终端切换到目标小区的灵活性，提高了用户体验。
下面将结合说明书附图以及具体的实施方式对上述技术方案进行说明。
如图1所示，本发明实施例一提供了一种切换方法，应用于终端，所述方法包括：
S101，接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息。
S102，在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
对于步骤S101，终端以UE为例，在UE对网络(例如移动网络)侧信号进行测量，然后UE向当前连接的源小区发送测量报告，当前连接的源小区接收到测量报告后，若判断UE需要切换到目标小区，则向目标小区发送切换准备请求，目标小区接受源小区的切换准备请求后，为UE进行配置，并通过源小区将切换命令发送给UE，UE通过源小区接收目标小区的切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息。其中接入带宽信息为用于接入所述目标小区的BWP的信息，切换命令中可能包括目标小区为UE配置的目标BWP的随机接入配置信息。该随机接入配置信息包括该BWP的公共随机接入配置信息和/或目标小区为UE分配的该BWP的专用随机接入配置信息。
在执行完步骤S101之后，执行步骤S102，步骤S102包括：
具体地，在UE按照切换命令中的接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区，包括UE发起随机接入过程，在所述BWP上接入所述目标小区。其中，切换命令中的接入带宽信息为确定的用于接入所述目标小区的BWP信息。切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
其中，显式的指示信息例如是，可以由一个indication来指明哪个资源位置的BWP为默认的BWP，隐式的指示信息例如是，将接入带宽信息列表中的第一个BWP或最后一个BWP设置为默认BWP的或分别通过不同IE(Information Element，信息单元)表示默认BWP，和其他接入带宽信息。
基于接入带宽信息中包括的BWP信息的不同，本实施例具体至少可以有以下几种实现方式，但并不限于以下几种实现方式：
方式一：UE接收到切换命令，切换命令中包括目标小区的接入带宽信息， 该接入带宽信息是所述目标小区的包含小区级SSB的BWP信息；
UE按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述BWP为包含小区级SSB的BWP；例如initial BWP；
UE在所述包含小区级SSB的BWP上接入所述目标小区；
UE发送重配置完成消息给目标小区。
方式二，UE接收到切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息；所述测量对象是触发切换的测量报告对应的测量对象；
UE按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述BWP为与所述终端配置的测量对象关联的SSB所在的BWP；
UE在所述与所述终端配置的测量对象关联的SSB所在的BWP上接入所述目标小区。
UE发送重配置完成消息给目标小区。
方式三，UE接收到切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区中的默认BWP信息；
UE按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述部分带宽为包含所述目标小区中的默认BWP；
UE在所述默认BWP上接入所述目标小区；
UE发送重配置完成消息给目标小区。
方式四，UE接收到切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区中指定的BWP信息；
UE按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述部分带宽为在该切换命令中显式指示的BWP；
UE在所述显示指示的BWP上接入所述目标小区；
UE发送重配置完成消息给目标小区。
其中通过显式指示例如是，对于所述指示信息，可以由一个indication来指明哪个BWP为UE接入所述目标小区的BWP。
如图2所示，第二方面，本发明一实施例提供了一种切换方法，其特征在于，应用于网络侧设备，包括：
S201，通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区；
S202，接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区。
对于步骤S201，终端以UE为例可以如下，UE对网络(例如移动网络)侧信号进行测量，然后UE向当前连接的源小区发送测量报告，源小区接收到测量报告后，若判断UE需要切换到目标小区，则源小区向网络侧目标小区发送切换准备请求，目标小区接受源小区的切换准备请求后，为UE进行配置，并通过源小区将切换命令发送给UE，所述切换命令中包括网络侧目标小区的接入带宽信息，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区；其中接入带宽信息为用于接入所述目标小区的BWP的信息，切换命令中可能包括目标小区为UE配置的目标BWP的随机接入配置信息。该随机接入配置信息包括该BWP的公共随机接入配置信息和/或目标小区为UE分配的该BWP的专用随机接入配置信息。所述目标小区为具有多个BWP的小区。
切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
其中，显式的指示信息例如是，可以由一个indication来指明哪个资源位置的BWP为默认的BWP，隐式的指示信息例如是，将接入带宽信息列表中的第一个BWP或最后一个BWP设置为默认BWP的或分别通过不同IE(Information Element，信息单元)表示默认BWP，和其他接入带宽信息。
在执行完步骤S201之后，执行步骤S202，步骤S202包括：
接收UE通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到目标小区。
接收到UE的重配置完成消息后，网络侧设备可以对UE进行重配等。
基于接入带宽信息中包括的BWP信息的不同，本实施例具体至少可以有以下几种实现方式，但并不限于以下几种实现方式：
方式一，通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区的包含小区级SSB的BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述部分带宽为包含小区级SSB的BWP；
接收UE通过所述包含小区级SSB的BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
在接收到UE的重配完成消息，可以对UE进行重配置。
方式二，通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述BWP为所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP，其中所述测量对象是触发切换的测量报告对应的测量对象；
接收UE通过所述与所述终端配置的测量对象关联的SSB所在的BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
在接收到UE的重配完成消息，可以对UE进行重配置。
方式三，通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区中的默认BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的 BWP接入目标小区，所述部分带宽为默认BWP；
接收UE通过所述默认BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
在接收到UE的重配完成消息，可以对UE进行重配置。
方式四，通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区中指定的BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述部分带宽为该切换命令中显式指示的BWP；
接收UE通过该切换命令中显式指示的BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
其中通过显式指示例如是，对于所述指示信息，可以由一个indication来指明哪个BWP为UE接入所述目标小区的BWP。
在接收到UE的重配完成消息，可以对UE进行重配置。
如图3所示，第三方面，本发明一实施例提供了一种终端，所述终端包括：
接收模块301，用于接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息。
接入模块302，用于在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
终端以UE为例，在UE对网络(例如移动网络)侧信号进行测量，然后UE向当前连接的源小区发送测量报告，当前连接的源小区接收到测量报告后，若判断UE需要切换到目标小区，向目标小区发送切换准备请求，目标小区接受源小区的切换准备请求后，为UE进行配置，并通过源小区将切换命令发送给UE，则接收模块301通过源小区接收网络侧目标小区发送的切换命令，该切换命令中包括接入带宽信息。其中接入带宽信息为用于接入所述目标小区 的BWP的信息，切换命令中可能包括目标小区为UE配置的目标BWP的随机接入配置信息。该随机接入配置信息包括该BWP的公共随机接入配置信息和/或目标小区为UE分配的该BWP的专用随机接入配置信息。接入模块302，在确定的所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
具体地，UE通过切换命令中的接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区之后，包括UE发起随机接入过程，接入模块302在所述BWP上接入所述目标小区。其中，切换命令中的接入带宽信息为确定的用于接入所述目标小区的BWP信息。切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
基于接入带宽信息中包括的BWP信息的不同，本实施例具体至少可以有以下几种实现方式，但并不限于以下几种实现方式：
方式一，接收模块301接收到切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区的包含小区级SSB的BWP信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息，所述BWP为包含小区级SSB的BWP；例如initial BWP；
接入模块302在所述包含小区级SSB的BWP上接入所述目标小区；
UE发送重配置完成消息给目标小区。
方式二，接收模块301接收切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息；所述测量对象是触发切换的测量报告对应的测量对象；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息，所述BWP为与所述终端配置的测量对象关联的SSB所在的BWP；
接入模块302在所述与所述终端配置的测量对象关联的SSB所在的BWP上接入所述目标小区。UE发送重配置完成消息给目标小区。
方式三，接收模块301接收到切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区中的默认BWP信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息，所述部分带宽为包含所述目标小区中的默认BWP；
接入模块302在所述默认BWP上接入所述目标小区；
UE发送重配置完成消息给目标小区。
方式四，接收模块301接收切换命令，切换命令中包括目标小区的接入带宽信息，该接入带宽信息是所述目标小区中指定的BWP信息；述接入带宽信息为确定的用于接入所述目标小区的BWP信息，所述BWP为在该切换命令中显式指示的BWP；
接入模块302在所述显示指示的BWP上接入所述目标小区；
UE发送重配置完成消息给目标小区。
其中通过显式指示例如是，对于所述指示信息，可以由一个indication来指明哪个BWP为UE接入所述目标小区的BWP。
如图4所示，第四方面，本发明一实施例提供了一种网络侧设备，包括：
发送模块401，用于通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区；
接收模块402，用于接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区。
终端以UE为例，UE对网络(例如移动网络)侧信号进行测量，然后UE向当前连接的源小区发送测量报告，源小区接收到测量报告后，若判断UE需要切换到目标小区，源小区则向网络侧目标小区发送切换准备请求，目标小区接受源小区的切换准备请求后，为UE进行配置，并且网络侧设备中的发送模块401通过源小区将切换命令发送给UE，所述切换命令中包括网络侧目标小区的接入带宽信息，按照所述接入带宽信息在确定的用于接入所述目标小 区的BWP接入目标小区；其中接入带宽信息为用于接入所述目标小区的BWP的信息，切换命令中可能包括目标小区为UE配置的目标BWP的随机接入配置信息。该随机接入配置信息包括该BWP的公共随机接入配置信息和/或目标小区为UE分配的该BWP的专用随机接入配置信息。
切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
其中，显式的指示信息例如是，可以由一个indication来指明哪个资源位置的BWP为默认的BWP，隐式的指示信息例如是，将接入带宽信息列表中的第一个BWP或最后一个BWP设置为默认BWP的或分别通过不同IE(Information Element，信息单元)表示默认BWP，和其他接入带宽信息。
在发送模块401通过源小区向UE发送切换命令后，接收模块402接收UE通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到目标小区。
此后，若网络侧设备接收到UE的重配置完成消息后，网络侧设备可以对UE进行重配。
基于接入带宽信息中包括的BWP信息的不同，本实施例具体至少可以有以下几种实现方式，但并不限于以下几种实现方式：
方式一，发送模块401源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区的包含小区级SSB的BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述BWP为包含小区级SSB的BWP接入目标小区；
接收模块402接收通过所述包含小区级SSB的BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
在网络侧设备接收到UE的重配完成消息，可以对UE进行重配置。
方式二，发送模块401通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述部分带宽为所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP，其中所述测量对象是触发切换的测量报告对应的测量对象；
接收模块402接收通过所述与所述终端配置的测量对象关联的SSB所在的BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
在网络侧设备接收到UE的重配完成消息，可以对UE进行重配置。
方式三，发送模块401通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区中的默认BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述BWP为默认BWP；
接收模块402接收通过所述默认BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。在网络侧设备接收到UE的重配完成消息，可以对UE进行重配置。
方式四，发送模块401通过源小区向UE发送切换命令，所述切换命令中包括为UE配置的接入带宽信息。该接入带宽信息是所述目标小区中指定的BWP信息；UE接到切换命令后，按照所述接入带宽信息在确定的用于接入所述目标小区的BWP接入目标小区，所述BWP为该切换命令中显式指示的BWP；
接收模块402接收UE通过该切换命令中显式指示的BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使UE从所述源小区切换到所述网络侧目标小区。
其中通过显式指示例如是，对于所述指示信息，可以由一个indication来 指明哪个BWP为UE接入所述目标小区的BWP。
在网络侧接收到UE的重配完成消息，可以对UE进行重配置。
第五方面，本发明一实施例提供了一种计算机装置，所述装置包括处理器，所述处理器用于执行存储器中存储的计算机程序时实现如实施例一或实施例二所述方法的步骤。
第六方面，本发明一实施例提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如实施例一或实施例二所述方法的步骤。
第七方面，本发明一实施例提供了一种网络侧设备，可以按如下方式实施。
图5为网络侧设备结构示意图，如图所示，网络侧设备中包括：
处理器500，用于读取存储器520中的程序，执行下列过程：
通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区；
收发机510，用于在处理器500的控制下接收和发送数据。
实施中，所述接入带宽信息是：
所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
实施中，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
其中，在图5中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器500负责管理总线架构和通常的处理，存储器520可以存储处理器500在执行操作时所使用的数据。
第八方面，本发明一实施例提供了一种终端，可以按如下方式实施。
图6为终端结构示意图，如图所示，终端中包括：
处理器600，用于读取存储器620中的程序，执行下列过程：
在终端接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的部分带宽BWP信息；
让终端在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区；
收发机610，用于在处理器600的控制下接收和发送数据。
实施中，所述接入带宽信息是：
所述目标小区中包含小区级同步信号块SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
实施中，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口630还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理，存储器620可以存储处理器600在执行操作时所使用的数据。
上述本发明实施例中的技术方案，至少具有如下的技术效果或优点：
通过采用本发明实施例提供的技术方案，终端能够切换到具有多个BWP的小区，终端可以切换到目标小区的小区级SSB的BWP，或者网络侧配置的默认BWP或者切换到测量对象关联的SSB对应的BWP或者网络侧在切换命令中配置接入BWP指示信息，分配终端接入任意BWP，这样解决了终端切换到多BWP小区的接入BWP选择问题，增强了终端切换到目标小区的灵活性，提高了用户体验。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (15)

  1. 一种切换方法，其特征在于，应用于终端，所述方法包括：
    接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的部分带宽BWP信息；
    在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
  2. 如权利要求1所述的方法，其特征在于，所述接入带宽信息是：
    所述目标小区中包含小区级同步信号块SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
    所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
    所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
    所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
  3. 如权利要求1或2所述的方法，其特征在于，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
  4. 一种切换方法，其特征在于，应用于网络侧，包括：
    通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
    接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区。
  5. 如权利要求4所述的方法，其特征在于，所述接入带宽信息是：
    所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
    所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
    所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
    所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
  6. 如权利要求4或5所述的方法，其特征在于，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
  7. 一种终端，其特征在于，终端包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    在终端接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的部分带宽BWP信息；
    让终端在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区；
    收发机，用于在处理器的控制下接收和发送数据。
  8. 如权利要求7所述的终端，其特征在于，所述接入带宽信息是：
    所述目标小区中包含小区级同步信号块SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
    所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
    所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
    所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
  9. 如权利要求7或8所述的终端，其特征在于，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
  10. 一种网络侧设备，其特征在于，设备中包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
    接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求，完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区；
    收发机，用于在处理器的控制下接收和发送数据。
  11. 如权利要求10所述的设备，其特征在于，所述接入带宽信息是：
    所述目标小区中包含小区级SSB的BWP信息，所述确定的BWP即为包含小区级SSB的BWP；或，
    所述目标小区中与所述终端配置的测量对象关联的SSB所在的BWP信息，所述测量对象是触发切换的测量报告对应的测量对象，所述确定的BWP即为与所述终端配置的测量对象关联的SSB所在的BWP；或，
    所述目标小区中的默认BWP信息，所述确定的BWP即为默认BWP；或，
    所述目标小区中指定的BWP信息，所述确定的BWP即为在该切换命令中显式指示的BWP。
  12. 如权利要求10或11所述的设备，其特征在于，所述切换命令中或者所述接入带宽信息中还包括用于指示所述确定的BWP的指示信息，所述指示信息包括以下信息中的一种或多种：该BWP对应的随机接入资源、随机接 入码、默认BWP资源位置的显式或隐式指示信息、指定的BWP的指示信息。
  13. 一种终端，其特征在于，所述终端包括：
    接收模块，用于接收网络侧目标小区通过源小区发送的切换命令，所述切换命令中包括目标小区的接入带宽信息；所述接入带宽信息为确定的用于接入所述目标小区的BWP信息；
    接入模块，用于在所述BWP上接入所述目标小区，以使所述终端从所述源小区切换到所述目标小区。
  14. 一种网络侧设备，其特征在于，包括：
    发送模块，用于通过源小区向终端发送切换命令，所述切换命令中包括网络侧目标小区的接入带宽信息，用以使所述终端按照所述接入带宽信息确定的用于接入所述目标小区的BWP接入目标小区；
    接收模块，用于接收所述终端通过所述BWP发送的接入所述目标小区的随机接入请求完成随机接入过程，用以使所述终端从所述源小区切换到所述目标小区。
  15. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1-6中任一项所述方法的步骤。
PCT/CN2018/112838 2017-11-17 2018-10-31 切换方法、终端和网络侧设备 WO2019096000A1 (zh)

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