WO2019214452A1 - Bwp-based processing method, device, system, related equipment and storage medium - Google Patents

Abstract

Disclosed by the present application are a bandwidth part (BWP)-based processing method, device and system, a related equipment and a storage medium. The method comprises: a network side sending determined BWP information corresponding to a terminal in a target cell to the terminal during a handover process; the terminal receiving the BWP information sent by the network side during the handover process; and determining the working bandwidth in the target cell.

Description

BWP-based processing method, device, system, related device and storage medium

Cross-reference to related applications

The present application is filed on the basis of the Chinese Patent Application No. 20 181 044 251 9.3, filed on May 10, s.

Technical field

The present application relates to the field of wireless communications, and in particular, to a method, an apparatus, a system, a related device, and a storage medium based on a partial bandwidth (BWP).

Background technique

The fifth-generation mobile communication (5G, Fifth Generation) system operates on a large bandwidth of 100 MHz to 400 Mhz. If the user equipment (UE, User Equipment) operates on the full bandwidth, it will consume a large amount of power. Therefore, in order to help the UE in the connected state to save power, and considering that some UEs may not have the capability of supporting full bandwidth, the concept of BWP is introduced in the 5G technology, that is, the base station can configure the UE in the connected state to work only on part of the bandwidth. , such as 20MHz.

On the other hand, in the 5G system, the handover procedure uses the handover process of the LTE system as a baseline (Beseline), that is, includes a measurement configuration, a measurement report, a handover request, a handover confirmation, and a UE initiates random access in the target cell.

However, in a 5G system, for a UE that needs to perform cell handover, the target base station configures the UE as a BWP after the UE enters the connected state. In this way, the UE needs to wait in the target cell for a period of time to enter the working mode of the BWP, thus increasing the delay and increasing the power consumption of the UE.

Summary of the invention

To solve the existing technical problems, the embodiment of the present application provides a BWP-based processing method, device, system, related device, and storage medium.

The technical solution of the embodiment of the present application is implemented as follows:

The embodiment of the present application provides a BWP-based processing method, which is applied to a terminal, and the method includes:

Receiving BWP information sent by the network side during the handover process;

Determine the working bandwidth in the target cell.

In the above solution, when the receiving the BWP information sent by the network side, the method further includes:

Receiving frequency domain location information of the measurement reference symbols sent by the network side.

In the above solution, when receiving the frequency domain location information of the measurement reference symbol sent by the network side, the method further includes:

Receiving a subcarrier spacing (SCS, SubCarrier Spacing) of the measurement reference symbols sent by the network side.

In the above solution, a handover command that carries the related information of the measurement reference symbol sent by the network side is received.

In the above solution, the BWP information sent by the receiving network side includes:

Receiving, by the network side, a handover command that carries the received BWP information.

In the above solution, the received BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in all configured BWPs except the initial BWP, the activated BWP, and the default BWP.

In the above solution, when the received BWP information includes at least the activated BWP and/or the default BWP information, the method further includes:

Receiving a timer Timer of the active BWP configured by the target base station for the terminal; wherein, when the terminal does not have data transmission on the activated BWP for more than the duration of the Timer, the terminal switches to the default BWP.

In the above solution, receiving a handover command that is sent by the network side and carries the first indication information;

Determining, by using the first indication information and the BWP information configured by the source base station for the terminal, all BWP information configured by the target base station for the terminal.

In the above solution, receiving a handover command that is sent by the network side and carries the second indication information;

Determining the activated BWP information configured by the target base station for the terminal by using the second indication information and the activated BWP information configured by the source base station for the terminal.

In the above solution, receiving a handover command that is sent by the network side and carries the third indication information;

And determining, by using the third indication information and the default BWP information configured by the source base station for the terminal, the default BWP information configured by the target base station for the terminal.

In the above solution, the received BWP information is at least two BWP information configured by the target base station for the terminal;

The determining the working bandwidth of the target cell includes:

Determine the activated BWP information in one of the following ways:

Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information;

Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence;

Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information;

The working bandwidth at the target cell is determined based on the determined activated BWP information.

The embodiment of the present application further provides a BWP-based processing method, which is applied to a network side device, and the method includes:

Sending the determined BWP information corresponding to the terminal in the target cell to the terminal during the handover process; the sent BWP information is used to determine, for the terminal, determining the working bandwidth of the target cell.

In the above solution, when the determined BWP information is sent to the terminal, the method further includes:

Transmitting frequency domain location information of the measurement reference symbol to the terminal.

In the foregoing solution, when the sending the frequency domain location information of the measurement reference symbol to the terminal, the method further includes:

Sending an SCS of the measurement reference symbol to the terminal.

In the above solution, the sending, by the terminal, the frequency domain location information of the measurement reference symbol includes:

A handover command carrying relevant information of the measurement reference symbol is transmitted to the terminal.

In the above solution, the sending the determined BWP information to the terminal includes:

Sending a handover command carrying BWP information to the terminal.

In the above solution, the sent BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

In the above solution, when the sent BWP information includes at least the activated BWP and/or the default BWP information, the method further includes:

Transmitting, to the terminal, a Timer of the active BWP configured by the terminal of the target base station; wherein, when the terminal does not have data transmission on the activated BWP for more than the duration of the Timer, the terminal switches to the default BWP.

In the foregoing solution, the sending, by the terminal, a handover command that carries the determined BWP information includes:

And transmitting, by the terminal, a handover command that carries the first indication information, where the first indication information is used by the terminal, by using the first indication information and the BWP information configured by the source base station for the terminal, to determine that the target base station is All BWP information of the terminal configuration.

In the above solution, the sending, by the terminal, a handover command that carries the determined BWP information includes:

And transmitting, by the terminal, a handover command that carries the second indication information, where the second indication information is used by the terminal, by using the second indication information, and the activated BWP information configured by the source base station for the terminal, to determine the target base station. The activated BWP information configured for the terminal.

In the above solution, the sending, by the terminal, a handover command that carries the determined BWP information includes:

And transmitting, by the terminal, a handover command that carries the third indication information, where the third indication information is used by the terminal, by using the third indication information, and default BWP information configured by the source base station for the terminal, to determine the target base station. The default BWP information configured for the terminal.

In the above solution, the determined BWP information is at least two pieces of BWP information configured by the target base station for the terminal; and when the determined BWP information is sent to the terminal, the method further includes:

And transmitting, to the terminal, indication information of the activated BWP information; the indication information of the activated BWP information includes one of the following information:

Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence.

The embodiment of the present application further provides a BWP-based processing apparatus, including:

a receiving unit, configured to receive BWP information sent by the network side during the handover process;

The first determining unit is configured to determine a working bandwidth of the target cell.

In the above solution, the receiving unit is further configured to receive the frequency domain location information of the measurement reference symbol sent by the network side when receiving the BWP information sent by the network side.

In the above solution, the received BWP information is at least two BWP information configured by the target base station for the terminal;

The first determining unit is configured to determine the activated BWP information by one of the following methods:

Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information;

Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence;

Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information;

The working bandwidth at the target cell is determined based on the determined activated BWP information.

The embodiment of the present application further provides a BWP-based processing apparatus, including:

a second determining unit, configured to determine that the terminal performs cell handover;

The sending unit is configured to send, to the terminal, the determined BWP information corresponding to the target cell in the handover process, and the sent BWP information is used to determine, by the terminal, the working bandwidth of the target cell.

In the above solution, the sending unit is further configured to: when the determined BWP information is sent to the terminal, send the frequency domain location information of the measurement reference symbol to the terminal.

In the above solution, the determined BWP information is at least two BWP information configured by the target base station for the terminal; the sending unit is further configured to:

When the determined BWP information is sent to the terminal, the indication information of the activated BWP information is sent to the terminal; the indication information of the activated BWP information includes one of the following information:

Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence.

The embodiment of the present application further provides a terminal, including:

a first communication interface, configured to receive BWP information sent by the network side during the handover process;

The first processor is configured to determine a working bandwidth at the target cell.

In the above solution, the first communication interface is further configured to receive the frequency domain location information of the measurement reference symbol sent by the network side when receiving the BWP information sent by the network side.

In the above solution, the received BWP information is at least two BWP information configured by the target base station for the terminal;

The first processor is configured to determine the activated BWP information by one of the following methods:

Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information;

Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence;

Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information;

The working bandwidth at the target cell is determined based on the determined activated BWP information.

The embodiment of the present application further provides a network device, including:

a second processor, configured to determine that the terminal performs cell handover;

The second communication interface is configured to send, to the terminal, the determined BWP information corresponding to the target cell in the handover process, and the sent BWP information is used to determine, for the terminal, the working bandwidth of the target cell.

In the above solution, the second communication interface is further configured to: when the determined BWP information is sent to the terminal, send the frequency domain location information of the measurement reference symbol to the terminal.

In the above solution, the determined BWP information is at least two BWP information configured by the target base station for the terminal; and the second communication interface is further configured to:

When the determined BWP information is sent to the terminal, the indication information of the activated BWP information is sent to the terminal; the indication information of the activated BWP information includes one of the following information:

Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence.

The embodiment of the present application further provides a BWP-based processing system, including: a terminal, a source base station, and a target base station;

The target base station is configured to: after the source base station determines that the terminal performs cell handover, send, by the source base station, the determined BWP information corresponding to the target cell in the target cell by using the source base station;

The terminal is configured to receive BWP information sent by the network side during the handover process; and determine a working bandwidth of the target cell.

In the above solution, the source base station is configured to send, to the target base station, a handover request command that carries at least one of the following information of the terminal: bandwidth capability information supported by the terminal; and BWP information configured by the terminal itself;

The target base station is further configured to receive a handover request command sent by the source base station, determine BWP information corresponding to the target cell in the target cell, and determine a transmission mode of the BWP.

In the above solution, the source base station configures at least two pieces of BWP information for the terminal; the source base station is further configured to send the indication information of the activated BWP information to the target base station; the indication information of the activated BWP information includes One of the following information:

Fifth indication information located in a sequence formed by the at least two BWP information; the fifth indication information is used by the target base station to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the target base station to determine activated BWP information in the sequence;

Alternatively, the target base station is configured to use the BWP information of the specific location in the sequence formed by the at least two BWP information as the activated BWP information.

In the foregoing solution, the target base station is configured to send, to the source base station, a handover request response or a handover command that carries BWP information corresponding to the target cell in the target cell;

The source base station is configured to receive the handover request response or the handover command, and transparently transmit the BWP information in the received request response or the handover command to the terminal, or pass the BWP information corresponding to the target cell in the target cell through the air interface. Send to the terminal.

The embodiment of the present application further provides a storage medium, where the computer program is stored, and when the computer program is executed by the processor, the steps of any method on the terminal side are implemented, or the steps of any method on the network side device side are implemented. .

The BWP-based processing method, apparatus, system, related device, and storage medium provided by the embodiments of the present application, in the cell handover process, the network side sends the BWP information that the terminal wins in the target cell, and the terminal receives the network. The BWP information sent by the side during the handover process; determining the working bandwidth of the target cell, since the network side sends the BWP information of the target cell to the terminal during the handover process, the terminal can use the received BWP information to determine as soon as possible. The working bandwidth can greatly reduce the time for searching the working bandwidth in the target cell, and greatly reduce the power consumption generated during the search process, thereby optimizing the delay and power consumption and improving the user experience.

DRAWINGS

1 is a schematic flowchart of a BWP-based processing method on a terminal side according to an embodiment of the present application;

2 is a schematic flowchart of a BWP-based processing method on a network side device side according to an embodiment of the present application;

3 is a schematic flowchart of a BWP-based processing method according to an embodiment of the present application;

4 is a schematic diagram of a cell handover process according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a BWP-based processing apparatus according to an embodiment of the present application;

6 is a schematic structural diagram of another BWP-based processing apparatus according to an embodiment of the present application;

7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a BWP-based processing system according to an embodiment of the present application.

detailed description

The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

In the 5G system, the handover procedure is used as the baseline in the handover process of the LTE system. Therefore, for the UE in the handover process, the target base station only configures the target cell, the private cell radio network temporary identifier (C-RNTI), by using the handover command. Information such as dedicated random access resources. After the target cell enters the connected state, the target base station may configure the BWP for the UE, so that before the target base station configures the BWP for the UE, the UE searches for the working bandwidth in the target cell, and the search time and the power consumption of the UE are Significantly increased, performance is not optimized from the perspective of latency and UE power consumption.

Based on this, in various embodiments of the present application, the network side terminal sends the BWP information corresponding to the target cell in the cell handover process, so that the terminal determines the working bandwidth of the target cell as soon as possible.

In the solution provided by the embodiment of the present application, since the network side sends the BWP information in the target cell to the terminal during the handover process, the terminal can use the received BWP information to determine the working bandwidth as soon as possible, thereby greatly reducing the search work in the target cell. The bandwidth time, while greatly reducing the power consumption generated during the search process, optimizes the delay and power consumption and improves the user experience.

The embodiment of the present application provides a BWP-based processing method, as shown in FIG. 1 , applied to a terminal, where the method includes:

Step 101: Receive BWP information sent by the network side during the handover process.

Here, the terminal receives the BWP information sent by the network side in the cell handover process. Specifically, the received BWP information is determined by the terminal network side to perform cell handover, and the BWP corresponding to the target cell in the target cell is determined. Sent after the message.

In an embodiment, the time when the network side sends the BWP information may be: the source base station determines that the terminal needs to perform cell handover, and sends a handover request command to the target base station; the target base station receives the handover request command, and allocates the terminal for the terminal. After the BWP information corresponding to the target cell (that is, determining the BWP information corresponding to the terminal in the target cell).

In actual application, the network side sends the frequency domain location information of the measurement reference symbol to the terminal in addition to the BWP information, and further sends the SCS, so that the terminal can obtain the measurement reference symbol according to the related information, thereby The measurement reference symbol is used to determine the signal quality of the working bandwidth of the target cell (which can be understood as an activated BWP, which can also be understood as a working BWP). In addition, in actual application, the measurement reference symbol may also be synchronized with the target cell, or synchronized with the activated BWP in the target cell, or with the working BWP in the target cell.

Based on this, in an embodiment, the method may further include:

Receiving frequency domain location information of the measurement reference symbols sent by the network side.

Further, the SCS of the measurement reference symbol sent by the network side is received.

In an embodiment, the receiving BWP information sent by the network side includes:

Receiving, by the network side, a handover command that carries the received BWP information.

Correspondingly, the handover command may further carry related information (frequency domain location information and SCS) of the measurement reference symbol, so that the terminal can obtain the information in time.

Wherein, in actual application, the measurement reference symbol may be: a synchronization signal block (SSB, Synchronization Signal Block) that does not carry the residual minimum system information (RMSI) (also referred to as SIB1) location information. Or an SSB carrying RMSI location information (may also be referred to as a cell defining SSB, or a reference SSB, or a channel state information reference symbol (CSI-RS, Channel State Information) -reference signal) and so on.

In an embodiment, the received BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

All the BWP information refers to: all BWP information configured by the target base station for the terminal, including: initial BWP information, activated BWP information, default BWP information, and other BWP information.

The initial BWP is a BWP used by the terminal when initially accessing the target cell, that is, the bandwidth corresponding to the terminal when initially accessing the target cell is determined by using the initial BWP.

The activated BWP is used for the terminal to transmit uplink and/or downlink data, that is, the terminal transmits uplink and/or downlink data on the working bandwidth corresponding to the activated BWP.

In actual application, when the received BWP information includes at least the activated BWP and/or the default BWP information, the target base station further configures the terminal to activate the BWP timer; the terminal exceeds the activated BWP. When there is no data transmission for the Timer duration, it will switch to the default BWP.

Based on this, in an embodiment, the method may further include:

Receiving a Timer of the active BWP configured by the target base station for the terminal.

For the default BWP information, there may be only downlink (DL) and no uplink (UL).

In practical applications, in order to save transmission resources, various ways can be used to indicate BWP information. specifically,

For all the above BWP information, the terminal may receive a handover command that is sent by the network side and carries the first indication information, such as 1 bit, etc.

The terminal determines, by using the first indication information and the BWP information configured by the source base station for the terminal, all the BWP information configured by the target base station for the terminal.

For the activated BWP information, the terminal may receive a handover command that is sent by the network side and carries the second indication information, such as 1 bit, etc.

The terminal determines the activated BWP information configured by the target base station for the terminal by using the second indication information and the activated BWP information configured by the source base station for the terminal.

For the default BWP information, the terminal may receive a handover command, such as 1 bit, that is sent by the network side and carries the third indication information.

And determining, by using the third indication information and the default BWP information configured by the source base station for the terminal, the default BWP information configured by the target base station for the terminal.

In actual application, the BWP information may be at least one of the following information:

Frequency domain location and bandwidth information;

SCS;

Up/down BWP information.

For the frequency domain location information, for example, the center frequency point, the highest or lowest starting point frequency point; available ARFCN, GSCN, the number of PRBs from a reference point position (such as point A). For the bandwidth information, the bandwidth can be used directly, or the number of physical resource blocks (PRBs), resource units (number of REs), number of SCSs, and the like can be used.

For frequency domain location and bandwidth information, the frequency domain and location information indicated by the number (such as indicating which BWP is a table) can also be used.

For SCS, if the uplink and downlink SCS are different, they are respectively indicated;

The information of the uplink/downlink BWP may include: a BWP ID, configuration information of uplink and downlink channels, resource information of uplink random access, and the like.

Step 102: Determine the working bandwidth of the target cell.

Of course, the terminal determines the working bandwidth of the target cell in the target cell by using the received BWP information.

Here, in practical application, if the target base station configures at least two BWPs for the terminal, it may indicate which BWP is the currently activated BWP in an implicit or displayed manner, and then the received BWP information is The at least two BWP information configured by the target base station for the terminal may be determined by one of the following methods:

The terminal uses the BWP information of the specific location in the sequence formed by the at least two BWP information as the activated BWP information;

The terminal searches for a fourth indication information, such as 1 bit, etc., from the sequence formed by the at least two BWP information, and adds the indication information before or after the activated BWP information; according to the fourth indication information, the sequence is The location in the location to determine the activated BWP information;

Determining, according to the received bitmap information, the activated BWP information from the sequence formed by the at least two BWP information, such as 0100, indicating 4 BWPs configured, and the second being the currently activated BWP;

The terminal determines the working bandwidth of the target cell according to the determined activated BWP information.

Correspondingly, the embodiment of the present application further provides a BWP-based processing method, which is applied to a network side device, as shown in FIG. 2, the method includes:

Step 201: Determine that the terminal performs cell handover.

Step 202: Send the determined BWP information corresponding to the target cell in the target cell to the terminal during the handover process.

Here, as previously described, the transmitted BWP information is used to determine for the terminal to determine the operating bandwidth of the target cell.

In actual application, the network side sends the frequency domain location information of the measurement reference symbol to the terminal in addition to the BWP information, and further sends the SCS, so that the terminal can obtain the measurement reference symbol according to the related information. Thus, the measurement reference symbol is used to determine the signal quality of the working bandwidth of the target cell (which can be understood as an activated BWP, which can also be understood as a working BWP). In addition, in actual application, the measurement reference symbol may also be synchronized with the target cell, or synchronized with the activated BWP in the target cell, or with the working BWP in the target cell.

Based on this, in an embodiment, the method may further include:

Transmitting frequency domain location information of the measurement reference symbol to the terminal.

Further, the method may further include:

Sending an SCS of the measurement reference symbol to the terminal.

In an embodiment, the sending the determined BWP information to the terminal includes:

Sending a handover command carrying BWP information to the terminal.

Correspondingly, the handover command may further carry related information (frequency domain location information and SCS) of the measurement reference symbol, so that the terminal can obtain the information in time.

In an embodiment, the sent BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

In actual application, when the received BWP information includes at least one of the activated BWP and the default BWP information, the target base station further configures the terminal to activate the BWP Timer; the terminal exceeds the Timer on the activated BWP. When there is no data transmission, it will switch to the default BWP.

Based on this, in an embodiment, the method may further include:

Transmitting, to the terminal, a Timer of the active BWP configured by the terminal of the target base station.

In practical applications, in order to save transmission resources, various ways can be used to indicate BWP information. specifically,

For all the BWP information, the network side device sends a handover command carrying the first indication information, such as 1 bit, to the terminal, where the first indication information is used by the terminal to use the first indication information and the source base station. The BWP information configured by the terminal determines all BWP information configured by the target base station for the terminal.

For the activated BWP information, the network side device sends a handover command carrying the second indication information, such as 1 bit, to the terminal, where the second indication information is used by the terminal to use the second indication information and the source base station. Determining, for the activated BWP information configured by the terminal, the activated BWP information configured by the target base station for the terminal.

For the default BWP information, the network side device sends a handover command carrying the third indication information, such as 1 bit, to the terminal, where the third indication information is used by the terminal to use the third indication information and the source base station. Determining default BWP information configured by the target base station for the terminal, for default BWP information configured by the terminal.

In actual application, if the target base station configures at least two BWPs to the terminal, it may indicate which BWP is the currently activated BWP in an implicit or displayed manner.

Based on this, in an embodiment, when the determined BWP information is sent to the terminal, the method further includes:

And transmitting, to the terminal, indication information of the activated BWP information; the indication information of the activated BWP information includes one of the following information:

The fourth indication information in the sequence formed by the at least two BWP information, such as 1 bit, etc., is added before or after the activated BWP information; the fourth indication information is used by the terminal Determining the activated BWP information in the sequence;

The bitmap information is used by the terminal to determine, in the sequence, the activated BWP information, such as 0100, indicating the configured 4 BWPs, and the second being the current activated BWP.

In addition, the activated BWP information may also be set at a specific position in the sequence formed by the at least two BWP information, such as the front or the last.

Correspondingly, the embodiment of the present application further provides a BWP-based processing method, as shown in FIG. 3, the method includes:

Step 301: After the source base station determines that the terminal performs cell handover, the target base station sends the determined BWP information corresponding to the target cell in the target cell to the terminal by using the source base station in the handover process.

Here, in an embodiment, after the source base station determines that the terminal needs to perform cell handover, it sends a handover request command carrying at least one of the following information of the terminal to the target base station:

The bandwidth capability information supported by the terminal; the BWP information configured by the terminal itself;

After receiving the handover request command, the target base station determines, according to the information carried in the handover request command, the BWP information corresponding to the target cell and the determined BWP transmission mode, that is, how to send the BWP information, that is, The BWP information is sent in the manner described above.

The bandwidth capability supported by the terminal refers to: which bandwidth is supported by the terminal, such as 100 MHz, 200 MHz, and the like.

Certainly, the handover request command also carries existing information, such as: capability information of the terminal, measurement configuration information of the terminal, and radio resource configuration information.

In actual application, if the source base station configures multiple BWPs for the terminal, it may indicate which BWP is the currently activated BWP in an implicit or displayed manner; specifically,

The source base station may further send indication information of the activated BWP information to the target base station; the indication information of the activated BWP information includes one of the following information:

The fifth indication information in the sequence formed by the at least two BWP information, such as 1 bit, etc., is added before or after the activated BWP information; the fifth indication information is used by the target base station Determining the activated BWP information in the sequence;

The bitmap information is used by the target base station to determine the activated BWP information in the sequence, such as 0100, indicating the configured 4 BWPs, and the second being the current activated BWP.

In addition, the source base station may further set the activated BWP information to a specific location in the sequence formed by the at least two BWP information, such as the front or the last.

Correspondingly, the target base station uses the BWP information of the specific location in the sequence formed by the at least two BWP information as the activated BWP information.

After the target base station configures the BWP, the target base station sends a request response that carries the BWP information corresponding to the target cell in the target cell to the source base station.

After receiving the handover request response, the source base station may directly transmit the BWP information in the received handover request response to the terminal, or send the BWP information corresponding to the target cell to the terminal through the air interface.

Here, the sending, by the source base station, the BWP information corresponding to the target cell to the terminal through the air interface, the source base station may use the BWP information and other information (such as the C-RNTI used by the terminal in the target cell, and the random connection. Incoming resources, system messages, etc. are sent together to the terminal through an air interface.

When the target base station sends a handover command, the BWP information may be transmitted in the foregoing manner, and the BWP configured by the target base station to the terminal and the BWP configured in the source base station (which may be referred to as a BWP in the source cell) are partially included. If it is consistent, it may be indicated by a bitmap, for example, 1001, indicating that the first and last BWPs in the source cell continue to be configured in the target cell;

In addition, in actual application, when the target base station configures the BWP for the terminal, the frequency domain location of the measurement reference symbol is also configured. As described above, the frequency domain location information of the measurement reference symbol is also carried in the handover command.

Step 302: The terminal receives the BWP information sent by the network side, and determines the working bandwidth of the target cell.

In a 5G system, a base station is called a gNB.

It should be noted that the related processing of the target base station, the source base station, and the terminal may be referred to the foregoing understanding, and details are not described herein again.

After the solution of the embodiment of the present application is used, the complete cell switching process, as shown in FIG. 4, may include:

Step 400: The source gNB (Source gNB) performs measurement configuration (Measurement Config.) to the UE;

Step 401: The UE sends a measurement report to the Source gNB.

Step 402: After receiving the measurement report, the Source gNB makes a handover decision according to the measurement report (HO Decision);

Step 403: The source gNB sends a handover request command (HO Request) to the target gNB (Target gNB);

Here, the command carries the BWP information corresponding to the UE in the source cell.

Step 404: After receiving the command, the Target gNB performs an admission control.

In this step, the Target gNB configures the BWP for the UE.

Step 405: The Target gNB returns a HO Request ACK message to the Source gNB.

Here, the returned message carries the BWP information corresponding to the UE in the target cell.

Step 406: The source gNB sends a handover command (HO Command) to the UE.

Here, the HO Command carries the BWP information corresponding to the UE in the target cell.

Step 407: After receiving the command, the UE synchronizes with the Target gNB and performs a random access procedure (Synchronization and random access);

Step 408: The Target gNB sends an uplink resource allocation (UL allocation) and a timing advance (TA, Timing Advance) to the UE.

Step 409: The UE sends an RRC Ren.Reconf.Complete message to the Target gNB.

The method of the embodiment of the present application, in the cell handover process, the network side terminal sends the BWP information that the terminal wins in the target cell, the terminal receives the BWP information sent by the network side in the handover process, and determines the target cell in the target cell. The working bandwidth, because the network side sends the BWP information in the target cell to the terminal during the handover process, the terminal can use the received BWP information to determine the working bandwidth as soon as possible, thereby greatly reducing the search bandwidth in the target cell. Time, while greatly reducing the power consumption generated during the search process, and then optimizing the delay and power consumption, improving the user experience.

In order to implement the method in the embodiment of the present application, the embodiment of the present application further provides a processing device for the BWP, which is disposed on the terminal. As shown in FIG. 5, the device includes:

The receiving unit 51 is configured to receive BWP information sent by the network side during the handover process;

The first determining unit 52 is configured to determine an operating bandwidth of the target cell.

In an embodiment, the network side may send the BWP information at a timing that the source base station determines that the terminal needs to perform cell handover, and sends a handover request command to the target base station; the target base station receives the handover request command, and is the After the terminal allocates the BWP information corresponding to the target cell (that is, determines the BWP information corresponding to the terminal in the target cell).

In actual application, the network side sends the frequency domain location information of the measurement reference symbol to the terminal in addition to the BWP information, and further sends the SCS, so that the terminal can obtain the measurement reference symbol according to the related information. Thus, the measurement reference symbol is used to determine the signal quality of the working bandwidth of the target cell (which can be understood as an activated BWP, which can also be understood as a working BWP). In addition, in actual application, the measurement reference symbol may also be synchronized with the target cell, or synchronized with the activated BWP in the target cell, or with the working BWP in the target cell.

Based on this, in an embodiment, the receiving unit 51 is further configured to receive frequency domain location information of the measurement reference symbol sent by the network side.

Further, the receiving unit 51 is further configured to receive an SCS of the measurement reference symbol sent by the network side.

In an embodiment, the receiving unit 51 is configured to:

Receiving, by the network side, a handover command that carries the received BWP information.

Correspondingly, the handover command may further carry related information (frequency domain location information and SCS) of the measurement reference symbol, so that the terminal can obtain the information in time.

In an embodiment, the received BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

In actual application, when the received BWP information includes at least the activated BWP and/or the default BWP information, the target base station further configures the terminal to activate the BWP timer; the terminal exceeds the activated BWP. When there is no data transmission for the Timer duration, it will switch to the default BWP.

Based on this, in an embodiment, the receiving unit 51 is further configured to receive a Timer of the active BWP configured by the target base station for the terminal.

In practical applications, in order to save transmission resources, various ways can be used to indicate BWP information. specifically,

For all the above BWP information, the receiving unit 51 may receive a handover command that is sent by the network side and carries the first indication information, such as 1 bit, etc.

The first determining unit 52 determines, by using the first indication information and the BWP information configured by the source base station for the terminal, all BWP information configured by the target base station for the terminal.

For the above-mentioned activated BWP information, the receiving unit 51 may receive a handover command, such as 1 bit, etc., that is sent by the network side and carries the second indication information.

The first determining unit 52 determines, by using the second indication information and the activated BWP information configured by the source base station for the terminal, the activated BWP information configured by the target base station for the terminal.

For the default BWP information, the receiving unit 51 may receive a handover command, such as 1 bit, etc., that is sent by the network side and carries the third indication information.

The first determining unit 52 determines the default BWP information configured by the target base station for the terminal by using the third indication information and the default BWP information configured by the source base station for the terminal.

In an embodiment, the received BWP information is at least two BWP information configured by the target base station for the terminal;

The first determining unit 52 is configured to determine the activated BWP information in one of the following manners:

Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information;

Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence;

Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information;

The working bandwidth at the target cell is determined based on the determined activated BWP information.

In actual application, the receiving unit 51 can be implemented by a communication interface in a BWP-based device; the first determining unit 52 can be implemented by a processor in a BWP-based processing device.

To implement the method in the embodiment of the present application, the embodiment of the present application further provides a BWP-based processing device, which is disposed on a network side device. As shown in FIG. 6, the device includes:

The second determining unit 61 is configured to determine that the terminal performs cell handover.

The sending unit 62 is configured to send, to the terminal, the determined BWP information corresponding to the target cell in the handover process, and the sent BWP information is used to determine, for the terminal, the working bandwidth of the target cell.

In actual application, the network side sends the frequency domain location information of the measurement reference symbol to the terminal in addition to the BWP information, and further sends the SCS, so that the related information of the terminal can be measured and referenced. The measurement reference symbol is used to determine the signal quality of the working bandwidth of the target cell (which can be understood as an activated BWP, which can also be understood as a working BWP). In addition, in actual application, the measurement reference symbol may also be synchronized with the target cell, or synchronized with the activated BWP in the target cell, or with the working BWP in the target cell.

Based on this, in an embodiment, the sending unit 62 is further configured to: when transmitting the determined BWP information to the terminal, send frequency domain location information of the measurement reference symbol to the terminal.

Further, the sending unit 62 is further configured to send an SCS of the measurement reference symbol to the terminal.

In an embodiment, the sending unit 62 is configured to:

Sending a handover command carrying BWP information to the terminal.

Correspondingly, the handover command may further carry related information (frequency domain location information and SCS) of the measurement reference symbol, so that the terminal can obtain the information in time.

In an embodiment, the sent BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

In actual application, when the received BWP information includes at least the activated BWP and/or the default BWP information, the target base station further configures the terminal to activate the BWP timer; the terminal exceeds the Timer duration on the activated BWP. When there is no data transfer, it will switch to the default BWP.

Based on this, in an embodiment, the sending unit 62 is further configured to send, to the terminal, a Timer of the active BWP configured by the terminal of the target base station.

In practical applications, in order to save transmission resources, various ways can be used to indicate BWP information. specifically,

For all the BWP information, the sending unit 62 sends a handover command carrying the first indication information, such as 1 bit, to the terminal, where the first indication information is used by the terminal to use the first indication information and the source base station. The BWP information configured by the terminal determines all BWP information configured by the target base station for the terminal.

For the activated BWP information, the sending unit 62 sends a handover command carrying the second indication information, such as 1 bit, to the terminal, where the second indication information is used by the terminal to use the second indication information and the source base station. Determining, for the activated BWP information configured by the terminal, the activated BWP information configured by the target base station for the terminal.

For the default BWP information, the sending unit 62 sends a handover command carrying the third indication information, such as 1 bit, to the terminal, where the third indication information is used by the terminal to use the third indication information and the source base station. Determining default BWP information configured by the target base station for the terminal, for default BWP information configured by the terminal.

In an embodiment, the determined BWP information is at least two BWP information configured by the target base station for the terminal; the sending unit 62 is further configured to:

When the determined BWP information is sent to the terminal, the indication information of the activated BWP information is sent to the terminal; the indication information of the activated BWP information includes one of the following information:

Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence.

In addition, the activated BWP information may also be set at a specific position in the sequence formed by the at least two BWP information, such as the front or the last.

In practical application, the second determining unit 61 may be implemented by a processor in a BWP-based processing device, which may be implemented by a communication interface based on a BWP-based device.

It should be noted that, when the BWP-based processing apparatus provided in the above embodiment performs BWP-based processing, only the division of each of the foregoing program modules is illustrated. In actual applications, the foregoing processing may be assigned differently according to needs. The program module is completed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the BWP-based processing device provided by the foregoing embodiment is the same as the BWP-based processing method embodiment, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.

Based on the hardware implementation of each of the foregoing program modules, in order to implement the method in the embodiment of the present application, the embodiment of the present application further provides a terminal. As shown in FIG. 7, the terminal 70 includes:

The first communication interface 71 is capable of performing information interaction with the network device;

The first processor 72 is coupled to the first communication interface 71 for performing information interaction with the network device, and configured to execute the method provided by the one or more technical solutions when the computer program is run. The computer program is stored on the first memory 73.

Specifically, the first communication interface 71 is configured to receive BWP information sent by the network side during the handover process;

The first processor 72 is configured to determine a working bandwidth of the target cell.

In an embodiment, the network side may send the BWP information at a timing that the source base station determines that the terminal needs to perform cell handover, and sends a handover request command to the target base station; the target base station receives the handover request command, and is the After the terminal allocates the BWP information corresponding to the target cell (that is, determines the BWP information corresponding to the terminal in the target cell).

In an embodiment, the first communication interface 71 is further configured to receive frequency domain location information of the measurement reference symbols sent by the network side.

In an embodiment, the first communication interface 71 is further configured to receive an SCS of the measurement reference symbol sent by the network side.

In an embodiment, the first communication interface 71 is configured to:

Receiving, by the network side, a handover command that carries the received BWP information.

Correspondingly, the handover command may further carry related information (frequency domain location information and SCS) of the measurement reference symbol, so that the terminal can obtain the information in time.

In an embodiment, the received BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

In actual application, when the received BWP information includes at least the activated BWP and/or the default BWP information, the target base station further configures the terminal to activate the BWP timer; the terminal exceeds the activated BWP. When there is no data transmission for the Timer duration, it will switch to the default BWP.

Based on this, in an embodiment, the first communication interface 71 is further configured to receive a Timer of the active BWP configured by the target base station for the terminal.

In practical applications, in order to save transmission resources, various ways can be used to indicate BWP information. specifically,

For all the above BWP information, the first communication interface 71 may receive a handover command that is sent by the network side and carries the first indication information, such as 1 bit, etc.

The first processor 72 determines, by using the first indication information and the BWP information configured by the source base station for the terminal, all BWP information configured by the target base station for the terminal.

For the above-mentioned activated BWP information, the first communication interface 71 may receive a handover command, such as 1 bit, etc., that is sent by the network side and carries the second indication information.

The first processor 72 determines, by using the second indication information and the activated BWP information configured by the source base station for the terminal, the activated BWP information configured by the target base station for the terminal.

For the default BWP information, the first communication interface 71 may receive a handover command that is sent by the network side and carries the third indication information, such as 1 bit, etc.

The first processor 72 determines the default BWP information configured by the target base station for the terminal by using the third indication information and the default BWP information configured by the source base station for the terminal.

In an embodiment, the received BWP information is at least two BWP information configured by the target base station for the terminal;

The first processor 72 is configured to determine the activated BWP information by one of the following methods:

Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information;

Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence;

Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information;

The working bandwidth at the target cell is determined based on the determined activated BWP information.

Of course, in actual application, the terminal 70 may further include: a user interface 74. The various components in terminal 70 are coupled together by a bus system 75. It will be appreciated that the bus system 75 is configured to enable connection communication between these components. In addition to the data bus, the bus system 75 includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 75 in FIG.

User interface 74 may include a display, a keyboard, a mouse, a trackball, a click wheel, a button, a button, a touchpad, or a touch screen.

The first memory 73 in the embodiment of the present application is configured to store various types of data to support the operation of the terminal 70.

The method disclosed in the foregoing embodiment of the present application may be applied to the first processor 72 or implemented by the first processor 72. The first processor 72 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the first processor 72 or an instruction in the form of software. The first processor 72 described above may be a general purpose processor, a digital signal processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like. The first processor 72 can implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor can be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the present application may be directly implemented as a 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 storage medium located in the first memory 73, and the first processor 72 reads the information in the first memory 73 and performs the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal 70 may be configured by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), and Complex Programmable Logic Devices (CPLDs). Complex Programmable Logic Device), Field-Programmable Gate Array (FPGA), General Purpose Processor, Controller, Micro Controller Unit (MCU), Microprocessor, or other electronic components Implemented, configured to perform the aforementioned method.

To implement the method in the embodiment of the present application, and based on the hardware implementation of the foregoing program module, the embodiment of the present application further provides a network device. As shown in FIG. 8, the device 80 includes:

The second communication interface 81 is capable of performing information interaction with the terminal;

The second processor 82 is coupled to the second communication interface 81 for performing information interaction with the terminal, and configured to execute the method provided by the one or more technical solutions when the computer program is run. The computer program is stored on the second memory 83.

Specifically, the second processor 82 is configured to determine that the terminal performs cell handover;

The second communication interface 81 is configured to send, to the terminal, the determined BWP information corresponding to the target cell in the handover process, and the sent BWP information is used to determine that the terminal determines the working bandwidth of the target cell.

In an embodiment, the second communication interface 81 is further configured to: when the determined BWP information is sent to the terminal, send frequency domain location information of the measurement reference symbol to the terminal.

In an embodiment, the second communication interface 81 is further configured to send an SCS of the measurement reference symbol to the terminal.

In an embodiment, the second communication interface 81 is configured to:

Sending a handover command carrying BWP information to the terminal.

Correspondingly, the handover command may further carry related information (frequency domain location information and SCS) of the measurement reference symbol, so that the terminal can obtain the information in time.

In an embodiment, the sent BWP information is at least one of the following information configured by the target base station for the terminal:

All BWP information;

Initial BWP information;

Activated BWP information;

Default BWP information;

All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP.

In an embodiment, the second communication interface 81 is further configured to send, to the terminal, a Timer of the active BWP configured by the terminal of the target base station.

In practical applications, in order to save transmission resources, various ways can be used to indicate BWP information. specifically,

For all the BWP information, the second communication interface 81 sends a handover command carrying the first indication information, such as 1 bit, to the terminal, where the first indication information is used by the terminal to use the first indication information and the source. The BWP information configured by the base station for the terminal determines all BWP information configured by the target base station for the terminal.

For the activated BWP information, the second communication interface 81 sends a handover command carrying the second indication information, such as 1 bit, to the terminal, where the second indication information is used by the terminal to use the second indication information and The activated BWP information configured by the source base station for the terminal determines the activated BWP information configured by the target base station for the terminal.

For the default BWP information, the second communication interface 81 sends a handover command carrying the third indication information, such as 1 bit, to the terminal, where the third indication information is used by the terminal to use the third indication information and The default BWP information configured by the source base station for the terminal, and the default BWP information configured by the target base station for the terminal is determined.

In an embodiment, the determined BWP information is at least two BWP information configured by the target base station for the terminal; and the second communication interface 81 is further configured to:

When the determined BWP information is sent to the terminal, the indication information of the activated BWP information is sent to the terminal; the indication information of the activated BWP information includes one of the following information:

Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence.

In addition, the second processor 82 may also set the activated BWP information at a specific position in the sequence formed by the at least two BWP information, such as the front or the last.

Of course, in actual application, as shown in FIG. 8, the various components in network device 80 are coupled together by bus system 84. It will be appreciated that bus system 84 is configured to enable connection communication between these components. In addition to the data bus, bus system 84 includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 84 in FIG.

The second memory 83 in the embodiment of the present application is configured to store various types of data to support the operation of the network device 80.

The method disclosed in the foregoing embodiment of the present application may be applied to the second processor 82 or implemented by the second processor 82. The second processor 82 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the second processor 82 or an instruction in the form of software. The second processor 82 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like. The second processor 82 can implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor can be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the present application may be directly implemented as a 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 storage medium located in the second memory 83, and the second processor 82 reads the information in the second memory 83 in conjunction with its hardware to perform the steps of the foregoing method.

In an exemplary embodiment, network device 80 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, microprocessors, or other electronic components, configured to Perform the aforementioned method.

It can be understood that the memory (such as the first memory 73 and the second memory 83) in the embodiment of the present application may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. . The non-volatile memory may be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), or an Erasable Programmable Read (EPROM). Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory , CD-ROM, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface memory can be a disk storage or a tape storage. The volatile memory can be a random access memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access (SSRAM). DRAM (Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhancement Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory Bus Random Access Memory (DRRAM) ). The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memory.

In order to implement the method in the embodiment of the present application, the embodiment of the present application further provides a BWP-based processing system. As shown in FIG. 9, the system includes: a terminal 91, a source base station 92, and a target base station 93;

The target base station 93 is configured to: after the source base station 92 determines that the terminal performs cell handover, sends the determined BWP information corresponding to the target cell in the target cell to the terminal 91 by using the source base station 92 in the handover process. ;

The terminal 91 is configured to receive BWP information sent by the network side during the handover process; and determine an operating bandwidth of the target cell.

In an embodiment, the source base station 92 is configured to send, to the target base station 93, a handover request command carrying at least one of the following information of the terminal: bandwidth capability information supported by the terminal; BWP information;

The target base station 93 is further configured to receive a handover request command sent by the source base station, and determine, according to the information carried in the handover request command, BWP information corresponding to the target cell and a transmission mode of the determined BWP. That is, how to send BWP information, that is, to send BWP information in the above manner.

The source base station 92 configures at least two pieces of BWP information for the terminal; the source base station 92 is further configured to send the indication information of the activated BWP information to the target base station 93; the indication information of the activated BWP information includes the following: One of the information:

Fifth indication information located in a sequence formed by the at least two BWP information; the fifth indication information is used by the target base station 93 to determine activated BWP information in the sequence;

Bitmap information; the bitmap information is used by the target base station 93 to determine activated BWP information in the sequence;

Alternatively, the target base station 93 is configured to use the BWP information of the specific location in the sequence formed by the at least two BWP information as the activated BWP information.

In an embodiment, the target base station 93 is configured to send, to the source base station 92, a handover request response or a handover command that carries BWP information corresponding to the target cell in the target cell.

The source base station 92 is configured to receive the handover request response or the handover command, transparently transmit the BWP information in the received request response or the handover command to the terminal 91, or connect the terminal 91 to the BWP corresponding to the target cell. Information is sent to the terminal 91 through an air interface.

It should be noted that the specific processing of the terminal 91, the source base station 92, and the target base station 93 can be understood by referring to the method.

In an exemplary embodiment, the embodiment of the present application further provides a storage medium, and in particular may be a computer readable storage medium, such as a first memory 73 including a computer program, which may be processed by the first processor 72 of the terminal 70. Executing to complete the steps described in the aforementioned terminal method, or a second memory 83 comprising a computer program, which may be executed by the second processor 82 of the network device 80 to perform the steps described above for the network device side method.

The computer readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

It should be noted that “first”, “second”, etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or order.

In addition, the technical solutions described in the embodiments of the present application may be arbitrarily combined without conflict.

The above is only the preferred embodiment of the present application and is not intended to limit the scope of the present application.

Claims (39)

A partial bandwidth BWP processing method is applied to a terminal, and the method includes: Receiving BWP information sent by the network side during the handover process; Determine the working bandwidth in the target cell. The method of claim 1, wherein when the receiving the BWP information sent by the network side, the method further comprises: Receiving frequency domain location information of the measurement reference symbols sent by the network side. The method according to claim 2, wherein when receiving the frequency domain location information of the measurement reference symbol sent by the network side, the method further includes: Receiving a subcarrier spacing of the measurement reference symbols transmitted by the network side. The method according to claim 2 or 3, wherein a handover command transmitted by the network side carrying relevant information of the measurement reference symbol is received. The method according to any one of claims 1 to 3, wherein the receiving the BWP information sent by the network side comprises: Receiving, by the network side, a handover command that carries the received BWP information. The method according to claim 4, wherein the received BWP information is at least one of the following information configured by the target base station for the terminal: All BWP information; Initial BWP information; Activated BWP information; Default BWP information; All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP. The method of claim 6, wherein when the received BWP information includes at least an activated BWP and/or default BWP information, the method further comprises: Receiving a timer Timer of the active BWP configured by the target base station for the terminal; wherein, when the terminal does not have data transmission on the activated BWP for more than the duration of the Timer, the terminal switches to the default BWP. The method of claim 6, wherein receiving a handover command that is sent by the network side and carrying the first indication information; Determining, by using the first indication information and the BWP information configured by the source base station for the terminal, all BWP information configured by the target base station for the terminal. The method of claim 6, wherein receiving a handover command that is sent by the network side and carrying the second indication information; Determining the activated BWP information configured by the target base station for the terminal by using the second indication information and the activated BWP information configured by the source base station for the terminal. The method of claim 6, wherein receiving a handover command that is sent by the network side and carrying the third indication information; And determining, by using the third indication information and the default BWP information configured by the source base station for the terminal, the default BWP information configured by the target base station for the terminal. The method according to any one of claims 1 to 3, wherein the received BWP information is at least two BWP information configured by the target base station for the terminal; The determining the working bandwidth of the target cell includes: Determine the activated BWP information in one of the following ways: Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information; Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence; Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information; The working bandwidth at the target cell is determined based on the determined activated BWP information. A BWP-based processing method is applied to a network side device, and the method includes: Sending the determined BWP information corresponding to the terminal in the target cell to the terminal during the handover process; the sent BWP information is used to determine, for the terminal, determining the working bandwidth of the target cell. The method of claim 12, wherein when the determined BWP information is sent to the terminal, the method further comprises: Transmitting frequency domain location information of the measurement reference symbol to the terminal. The method according to claim 13, wherein when the transmitting the frequency domain location information of the measurement reference symbol to the terminal, the method further comprises: Transmitting a subcarrier spacing of the measurement reference symbols to the terminal. The method according to claim 13 or 14, wherein the transmitting the frequency domain location information of the measurement reference symbol to the terminal comprises: A handover command carrying relevant information of the measurement reference symbol is transmitted to the terminal. The method according to any one of claims 12 to 14, wherein the transmitting the determined BWP information to the terminal comprises: Sending a handover command carrying BWP information to the terminal. The method according to claim 16, wherein the transmitted BWP information is at least one of the following information configured by the target base station for the terminal: All BWP information; Initial BWP information; Activated BWP information; Default BWP information; All BWP information in the configured BWP except the initial BWP, the activated BWP, and the default BWP. The method according to claim 15, wherein when the transmitted BWP information includes at least the activated BWP and/or the default BWP information, the method further includes: Transmitting, to the terminal, a Timer of the active BWP configured by the terminal of the target base station; wherein, when the terminal does not have data transmission on the activated BWP for more than the duration of the Timer, the terminal switches to the default BWP. The method of claim 17, wherein the transmitting the handover command carrying the determined BWP information to the terminal comprises: And transmitting, by the terminal, a handover command that carries the first indication information, where the first indication information is used by the terminal, by using the first indication information and the BWP information configured by the source base station for the terminal, to determine that the target base station is All BWP information of the terminal configuration. The method of claim 17, wherein the transmitting the handover command carrying the determined BWP information to the terminal comprises: And transmitting, by the terminal, a handover command that carries the second indication information, where the second indication information is used by the terminal, by using the second indication information, and the activated BWP information configured by the source base station for the terminal, to determine the target base station. The activated BWP information configured for the terminal. The method of claim 17, wherein the transmitting the handover command carrying the determined BWP information to the terminal comprises: And transmitting, by the terminal, a handover command that carries the third indication information, where the third indication information is used by the terminal, by using the third indication information, and default BWP information configured by the source base station for the terminal, to determine the target base station. The default BWP information configured for the terminal. The method according to any one of claims 12 to 14, wherein the determined BWP information is at least two BWP information configured by the target base station for the terminal; when the determined BWP information is sent to the terminal, The method also includes: And transmitting, to the terminal, indication information of the activated BWP information; the indication information of the activated BWP information includes one of the following information: Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence; Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence. A BWP-based processing device comprising: a receiving unit, configured to receive BWP information sent by the network side during the handover process; The first determining unit is configured to determine a working bandwidth of the target cell. The apparatus according to claim 23, wherein the receiving unit is further configured to receive frequency domain location information of the measurement reference symbol transmitted by the network side when receiving the BWP information sent by the network side. The apparatus according to claim 23 or 24, wherein the received BWP information is at least two BWP information configured by the target base station for the terminal; The first determining unit is configured to determine the activated BWP information by one of the following methods: Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information; Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence; Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information; The working bandwidth at the target cell is determined based on the determined activated BWP information. A BWP-based processing device comprising: a second determining unit, configured to determine that the terminal performs cell handover; The sending unit is configured to send, to the terminal, the determined BWP information corresponding to the target cell in the handover process, and the sent BWP information is used to determine, by the terminal, the working bandwidth of the target cell. The apparatus according to claim 26, wherein said transmitting unit is further configured to transmit frequency domain location information of the measurement reference symbol to said terminal when said determined BWP information is transmitted to said terminal. The apparatus according to claim 26 or 27, wherein the determined BWP information is at least two BWP information configured by the target base station for the terminal; the sending unit is further configured to: When the determined BWP information is sent to the terminal, the indication information of the activated BWP information is sent to the terminal; the indication information of the activated BWP information includes one of the following information: Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence; Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence. A terminal comprising: a first communication interface, configured to receive BWP information sent by the network side during the handover process; The first processor is configured to determine a working bandwidth at the target cell. The terminal according to claim 29, wherein the first communication interface is further configured to receive frequency domain location information of the measurement reference symbol sent by the network side when receiving the BWP information sent by the network side. The terminal according to claim 29 or 30, wherein the received BWP information is at least two BWP information configured by the target base station for the terminal; The first processor is configured to determine the activated BWP information by one of the following methods: Determining BWP information of a specific location in the sequence formed by the at least two BWP information as activated BWP information; Finding fourth indication information from a sequence formed by the at least two BWP information; determining activated BWP information according to a location of the fourth indication information in the sequence; Determining the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information; The working bandwidth at the target cell is determined based on the determined activated BWP information. A network device, including: a second processor, configured to determine that the terminal performs cell handover; The second communication interface is configured to send, to the terminal, the determined BWP information corresponding to the target cell in the handover process, and the sent BWP information is used to determine, for the terminal, the working bandwidth of the target cell. The apparatus according to claim 32, wherein said second communication interface is further configured to transmit frequency domain location information of the measurement reference symbols to said terminal when said determined BWP information is transmitted to said terminal. The device according to claim 32 or 33, wherein the determined BWP information is at least two BWP information configured by the target base station for the terminal; and the second communication interface is further configured to: When the determined BWP information is sent to the terminal, the indication information of the activated BWP information is sent to the terminal; the indication information of the activated BWP information includes one of the following information: Fourth indication information located in a sequence formed by the at least two BWP information; the fourth indication information is used by the terminal to determine activated BWP information in the sequence; Bitmap information; the bitmap information is used by the terminal to determine activated BWP information in the sequence. A BWP-based processing system includes: a terminal, a source base station, and a target base station; wherein The target base station is configured to: after the source base station determines that the terminal performs cell handover, send, by the source base station, the determined BWP information corresponding to the target cell in the target cell by using the source base station; The terminal is configured to receive BWP information sent by the network side during the handover process; and determine a working bandwidth of the target cell. The system according to claim 35, wherein the source base station is configured to send, to the target base station, a handover request command carrying at least one of the following information of the terminal: bandwidth capability information supported by the terminal; The BWP information of the terminal configuration; The target base station is further configured to receive a handover request command sent by the source base station, determine BWP information corresponding to the target cell in the target cell, and determine a transmission mode of the BWP. The system according to claim 36, wherein the source base station configures at least two pieces of BWP information for the terminal; the source base station is further configured to send indication information of the activated BWP information to the target base station; The indication information of the BWP information includes one of the following information: Fifth indication information located in a sequence formed by the at least two BWP information; the fifth indication information is used by the target base station to determine activated BWP information in the sequence; Bitmap information; the bitmap information is used by the target base station to determine activated BWP information in the sequence; Alternatively, the target base station is configured to use the BWP information of the specific location in the sequence formed by the at least two BWP information as the activated BWP information. The system according to claim 35, wherein the target base station is configured to send, to the source base station, a handover request response or a handover command that carries BWP information corresponding to the target cell in the target cell; The source base station is configured to receive the handover request response or the handover command, and transparently transmit the BWP information in the received request response or the handover command to the terminal, or pass the BWP information corresponding to the target cell in the target cell through the air interface. Send to the terminal. A storage medium having stored thereon a computer program, the computer program being executed by a processor to perform the steps of the method of any one of claims 1 to 11, or to implement the method of any one of claims 12 to 22. step.

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