CN110475297B - BWP-based processing method, device, system, related equipment and storage medium - Google Patents

Abstract

The invention discloses a processing method, device, system, related equipment and storage medium based on partial bandwidth (BWP). The method includes: the network side sends the determined BWP information corresponding to the terminal in the target cell to the terminal during the handover process; the terminal receives the BWP information sent by the network side during the handover process; and determines the working bandwidth in the target cell.

Description

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

technical field

The present invention relates to the field of wireless communication, and in particular, to a processing method, apparatus, system, related equipment and storage medium based on a partial bandwidth (BWP, Bandwidth Part).

Background technique

The fifth generation mobile communication (5G, Fifth Generation) system works on a large bandwidth of 100MHz to 400Mhz, and if a user equipment (UE, User Equipment) works 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 consumption, and considering that some UEs may not have the ability to support the 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 takes the handover procedure of the LTE system as the baseline, that is, including measurement configuration, measurement reporting, handover request, handover confirmation, and the UE initiates random access in the target cell.

However, in the 5G system, for a UE that needs to perform cell handover, the target base station will configure the UE as BWP only after the UE enters the connected state in the target cell. In this way, the UE needs to wait in the target cell for a period of time before entering the BWP working mode, which increases the time delay and increases the power consumption of the UE.

SUMMARY OF THE INVENTION

In order to solve the existing technical problems, embodiments of the present invention provide a BWP-based processing method, apparatus, system, related equipment, and storage medium.

The technical solution of the embodiment of the present invention is realized as follows:

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

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

Determine the operating bandwidth in the target cell.

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

The frequency domain location information of the measurement reference symbols sent by the network side is received.

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

The subcarrier spacing (SCS, SubCarrier Spacing) of the measurement reference symbols sent by the network side is received.

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

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

Receive a handover command that is sent by the network side and 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

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

Receive the timer Timer for activating the BWP configured by the target base station for the terminal; wherein, the terminal switches to the default BWP when there is no data transmission or scheduling on the activated BWP exceeding the Timer duration.

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

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

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

Using the second indication information and the activated BWP information configured for the terminal by the source base station, determine the activated BWP information configured by the target base station for the terminal.

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

Using the third indication information and the default BWP information configured for the terminal by the source base station, the default BWP information configured by the target base station for the terminal is determined.

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 of the working bandwidth in the target cell includes:

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

Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information;

Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence;

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

According to the determined activated BWP information, determine the working bandwidth in the target cell.

An embodiment of the present invention also provides a BWP-based processing method, which is applied to a network side device, and the method includes:

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

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

Sending frequency domain location information of measurement reference symbols to the terminal.

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

The SCS of the measurement reference symbols is sent to the terminal.

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

A handover command carrying relevant information of measurement reference symbols is sent to the terminal.

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

A handover command carrying BWP information is sent 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

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

Send the BWP-activated Timer configured by the target base station and the terminal to the terminal; wherein, the terminal switches to the default BWP when there is no data transmission or scheduling on the activated BWP for longer than the Timer duration .

In the above solution, sending a handover command carrying the determined BWP information to the terminal includes:

Send a handover command carrying first indication information to the terminal; the first indication information is used for the terminal to use the first indication information and the BWP information configured for the terminal by the source base station to determine that the target base station is the target base station. All BWP information configured on the terminal described above.

In the above solution, the sending of the handover command carrying the determined BWP information to the terminal includes:

Send a handover command carrying second indication information to the terminal; the second indication information is used for the terminal to determine the target base station by using the second indication information and the activated BWP information configured for the terminal by the source base station Active BWP information configured for the terminal.

In the above solution, the sending of the handover command carrying the determined BWP information to the terminal includes:

Send a handover command carrying third indication information to the terminal; the third indication information is used for the terminal to determine the target base station by using the third indication information and the default BWP information configured for the terminal by the source base station Default BWP information configured for 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; when sending the determined BWP information to the terminal, the method further includes:

Send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information:

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

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

An embodiment of the present invention further provides a BWP-based processing device, including:

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

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

In the above solution, the receiving unit is further configured to receive the frequency domain location information of the measurement reference symbols 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 specifically configured to determine activated BWP information in one of the following ways:

Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information;

Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence;

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

According to the determined activated BWP information, determine the working bandwidth in the target cell.

The embodiment of the present invention also provides a BWP-based processing device, including:

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

The sending unit is configured to send 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 the working bandwidth for the terminal to determine the target cell.

In the above solution, the sending unit is further configured to send the frequency domain location information of the measurement reference symbols to the terminal when the determined BWP information is sent 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 sending the determined BWP information to the terminal, send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information:

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

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

An embodiment of the present invention further provides a terminal, including:

a first communication interface, used for receiving BWP information sent by the network side during the handover process;

The first processor is used for determining the working bandwidth in 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 symbols 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 specifically configured to determine activated BWP information in one of the following ways:

Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information;

Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence;

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

According to the determined activated BWP information, determine the working bandwidth in the target cell.

An embodiment of the present invention further provides a network device, including:

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

The second communication interface is used to send 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 the working bandwidth for the terminal to determine the target cell.

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

When sending the determined BWP information to the terminal, send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information:

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

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

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

the target base station, configured to send the determined BWP information corresponding to the terminal in the target cell to the terminal through the source base station during the handover process after the source base station determines that the terminal performs cell handover;

The terminal is used for receiving the BWP information sent by the network side during the handover process; and determining the working bandwidth in the target cell.

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

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

In the above solution, the source base station configures at least two 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 information:

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

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

Or, the target base station is configured to use the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information.

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

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

Embodiments of the present invention further provide a storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of any method on the terminal side or implements the steps of any method on the network side device.

In the BWP-based processing method, device, system, related equipment, and storage medium provided by the embodiments of the present invention, during the cell handover process, the network side sends the BWP information corresponding to the terminal in the target cell to the terminal, and the terminal receives the network side BWP information sent in the handover process; determine the working bandwidth in the target cell, 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 Therefore, the time for searching the working bandwidth in the target cell can be greatly reduced, and the power consumption during the search process can be greatly reduced, thereby optimizing the delay and power consumption, and improving the user experience.

Description of drawings

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

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

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

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

5 is a schematic structural diagram of a BWP-based processing device according to an embodiment of the present invention;

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

FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

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

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

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Since the handover process in the 5G system is based on the handover process of the LTE system, for the UE in the handover process, the target base station will only configure the target cell for the UE through the handover command, the dedicated cell radio network temporary identifier (C-RNTI), Information such as dedicated random access resources. When the UE enters the connected state in the target cell, the target base station can configure the BWP for the UE. In this way, before the target base station configures the BWP for the UE, the UE will search for the working bandwidth in the target cell, so the search time and the power consumption of the UE will be reduced. It is greatly increased, and the performance is not optimized from the perspective of delay and UE power consumption.

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

In the solution provided by the embodiment of the present invention, 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. At the same time, the power consumption generated during the search process is greatly reduced, and the delay and power consumption are optimized to improve the user experience.

An embodiment of the present invention provides a BWP-based processing method, as shown in FIG. 1 , which is applied to a terminal, and the method includes:

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

Here, the terminal receives the BWP information sent by the network side during the cell handover process. Specifically, the received BWP information is the determination on the network side of the terminal that the terminal performs cell handover and the BWP corresponding to the target cell of the terminal. sent after the information.

In an embodiment, the timing of sending the BWP information by the network side 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 handover request command to the terminal. It is after the BWP information corresponding to the target cell (that is, the BWP information corresponding to the terminal in the target cell is determined).

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

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

The frequency domain location information of the measurement reference symbols sent by the network side is received.

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

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

Receive a handover command that is sent by the network side and carries the received BWP information.

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

Wherein, in practical application, the measurement reference symbol may be: a synchronization signal block (SSB, Synchronization Signal Block) that does not carry the position information of the remaining minimum system information (RMSI, Remaining Minimal System Information) (also referred to as SIB1), Or an SSB carrying RMSI location information (may also be called a cell defining SSB), or a reference synchronization signal block (reference SSB), or a channel state information reference symbol (CSI-RS, Channel State Information) -reference signal), etc.

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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

Wherein, all 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 (initial) BWP is the 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.

Wherein, in practical application, when the received BWP information at least includes activated BWP and/or default BWP information, the target base station will also configure a Timer for activating BWP for the terminal; When there is no data transmission or scheduling for the Timer duration, it will switch to the default BWP.

That is to say, the terminal will switch to the default BWP when there is no service data or no scheduling information transmission on the activated BWP for more than the Timer duration.

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

A Timer for activating BWP configured by the target base station for the terminal is received.

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

In practical application, in order to save sending resources, various ways can be used to indicate the BWP information. specifically,

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

The terminal uses the first indication information and the BWP information configured for the terminal by the source base station to determine all the BWP information configured for the terminal by the target base station.

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

The terminal uses the second indication information and the activated BWP information configured for the terminal by the source base station to determine the activated BWP information configured for the terminal by the target base station.

For the above-mentioned default BWP information, the terminal may receive a handover command that carries third indication information sent by the network side, such as 1 bit, etc.;

Using the third indication information and the default BWP information configured for the terminal by the source base station, the default BWP information configured by the target base station for the terminal is determined.

In practical application, the BWP information can be at least one of the following information:

Frequency domain location and bandwidth information;

SCS;

Uplink/Downlink BWP information.

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

For the frequency domain location and bandwidth information, the frequency domain and location information indicated by a number may also be used (eg, to indicate which BWP is in a certain table).

For SCS, if the uplink and downlink SCSs are different, indicate respectively;

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

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

Of course, the terminal uses the received BWP information to determine its own working bandwidth in the target cell.

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

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

The terminal searches for 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, in the sequence In the position, determine the activated BWP information;

According to the received bitmap information, the terminal determines the activated BWP information from the sequence formed by the at least two BWP information, such as 0100, indicating the configured 4 BWPs, and the second is the current activated BWP;

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

Correspondingly, an embodiment of the present invention also 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: During the handover process, the determined BWP information corresponding to the terminal in the target cell is sent to the terminal.

Here, as described above, the sent BWP information is used to determine the working bandwidth of the target cell for the terminal to determine.

In practical application, in addition to sending the BWP information, the network side generally sends the frequency domain location information of the measurement reference symbols to the terminal, and further sends the SCS, so that the terminal can obtain the measurement reference symbols according to the relevant information, Therefore, 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, and can also be understood as a working BWP). In addition, in practical application, the measurement reference symbol can also be used to synchronize with the target cell, or with the activated BWP in the target cell, or with the working BWP in the target cell.

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

Sending frequency domain location information of measurement reference symbols to the terminal.

Further, the method can also include:

The SCS of the measurement reference symbols is sent to the terminal.

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

A handover command carrying BWP information is sent to the terminal.

Correspondingly, the handover command may also carry relevant information of measurement reference symbols (frequency domain location information and SCS), 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

In practical application, when the received BWP information contains at least the activated BWP and/or the default BWP information, the target base station will also configure a Timer for activating the BWP for the terminal; the terminal exceeds the Timer duration on the activated BWP. When there is no data transmission or scheduling, it will switch to the default BWP.

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

Send the Timer for activating BWP configured by the target base station to the terminal to the terminal.

In practical application, in order to save sending resources, various ways can be used to indicate the BWP information. specifically,

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

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

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

In practical application, if the target base station configures at least two BWPs for the terminal, it can indicate which BWP is the currently activated BWP in an implicit or explicit manner, specifically including:

When sending the determined BWP information to the terminal, the method further includes:

Send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information:

The fourth indication information located 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 for the terminal to Determine the activated BWP information in the sequence;

bitmap information; the bitmap information is used for the terminal to determine the activated BWP information in the sequence, for example, 0100, which represents four configured BWPs, and the second one is 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 foremost or the last, and the like.

Correspondingly, an embodiment of the present invention also 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, during the handover process, the target base station sends the determined BWP information corresponding to the terminal in the target cell to the terminal through the source base station;

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

Bandwidth capability information supported by the terminal; BWP information configured for the terminal by itself;

After receiving the handover request command, the target base station determines, based on the information carried by the handover request command, the BWP information corresponding to the terminal in the target cell and the determined BWP sending mode, that is, how to send the BWP information, that is, The BWP information is sent in the above-mentioned manner.

The bandwidth capability supported by the terminal refers to which bandwidths the terminal supports, such as 100MHz, 200MHz, and so on.

Of course, 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 practical application, if the source base station configures multiple BWPs for the terminal, it can indicate which BWP is the currently activated BWP in an implicit or explicit manner:

The source base station may also 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 information:

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

bitmap information; the bitmap information is used for the target base station to determine the activated BWP information in the sequence, for example, 0100, indicating four configured BWPs, and the second one is the current activated BWP.

In addition, the source base station 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 frontmost or the rearmost.

Correspondingly, the target base station takes the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information.

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

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

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

When the target base station sends the handover command, for the BWP information, in addition to the above-mentioned way, if the BWP configured by the target base station for the terminal and the BWP configured by the source base station (which may be called the BWP in the source cell) are part of If they are consistent, the bitmap method can be used to indicate, such as 1001, which means that the first and last BWP in the source cell continue to be configured in the target cell;

In addition, in practical application, when the target base station configures the BWP for the terminal, the frequency domain position of the measurement reference symbol is also configured. As mentioned above, the frequency domain position 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 the 5G system, the 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 can be understood with reference to the foregoing, and details are not repeated here.

After adopting the solution of the embodiment of the present invention, the complete cell handover 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: UE sends a measurement report (Measurement Report) to Source gNB;

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

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 the Target gNB receives the command, it performs admission control;

In this step, Target gNB will configure BWP for UE.

Step 405: the Target gNB returns a handover request acceptance (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 the UE receives the command, it synchronizes with the Target gNB and performs a random access process (Synchronization and random access);

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

Step 409: The UE sends an RRC reconfiguration complete (RRC Conn.Reconf.Complete) message to the Target gNB.

By adopting the method of the embodiment of the present invention, during the cell handover process, the network side sends the BWP information corresponding to the terminal in the target cell to the terminal, and the terminal receives the BWP information sent by the network side during the handover process; Working bandwidth, 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 time for searching the working bandwidth in the target cell At the same time, the power consumption generated during the search process is greatly reduced, and the delay and power consumption are optimized to improve the user experience.

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

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

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

Wherein, in an embodiment, the timing of sending the BWP information by the network side 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 is the The terminal allocates its BWP information corresponding to the target cell (that is, after determining the BWP information corresponding to the terminal in the target cell).

In practical application, in addition to sending the BWP information, the network side generally sends the frequency domain location information of the measurement reference symbols to the terminal, and further sends the SCS, so that the terminal can obtain the measurement reference symbols according to the relevant information, Therefore, 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, and can also be understood as a working BWP). In addition, in practical application, the measurement reference symbol can also be used to synchronize with the target cell, or 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 the frequency domain location information of the measurement reference symbols sent by the network side.

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

In one embodiment, the receiving unit 51 is specifically configured to:

Receive a handover command that is sent by the network side and carries the received BWP information.

Correspondingly, the handover command may also carry relevant information of measurement reference symbols (frequency domain location information and SCS), 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

Wherein, in practical application, when the received BWP information at least includes activated BWP and/or default BWP information, the target base station will also configure a Timer for activating BWP for the terminal; When there is no data transmission or scheduling 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 for activating BWP configured by the target base station for the terminal.

In practical application, in order to save sending resources, various ways can be used to indicate the BWP information. specifically,

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

The first determining unit 52 uses the first indication information and the BWP information configured for the terminal by the source base station to determine all the 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, which is sent by the network side and carries the second indication information;

The first determining unit 52 uses the second indication information and the activated BWP information configured for the terminal by the source base station to determine the activated BWP information configured by the target base station for the terminal.

For the above-mentioned default BWP information, the receiving unit 51 may receive the handover command that carries the third indication information sent by the network side, such as 1 bit, etc.;

The first determining unit 52 uses the third indication information and the default BWP information configured for the terminal by the source base station to determine the default BWP information configured by the target 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 specifically configured to determine the activated BWP information in one of the following ways:

Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information;

Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence;

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

According to the determined activated BWP information, determine the working bandwidth in the target cell.

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

In order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides a BWP-based processing apparatus, which is set on a network side device. As shown in FIG. 6 , the apparatus includes:

a second determining unit 61, configured to determine that the terminal performs cell handover;

The sending unit 62 is configured to send 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 the working bandwidth for the terminal to determine the target cell.

In practical application, in addition to sending the BWP information, the network side generally sends the frequency domain location information of the measurement reference symbols to the terminal, and further sends the SCS, so that the terminal can obtain the measurement reference symbols from these related information, thereby The measurement reference symbol is used to determine the signal quality of the working bandwidth (which can be understood as an activated BWP, or a working BWP) in the target cell. In addition, in practical application, the measurement reference symbol can also be used to synchronize with the target cell, or 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 send the frequency domain location information of the measurement reference symbol to the terminal when the determined BWP information is sent to the terminal.

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

In one embodiment, the sending unit 62 is specifically configured to:

A handover command carrying BWP information is sent to the terminal.

Correspondingly, the handover command may also carry relevant information of measurement reference symbols (frequency domain location information and SCS), 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

In practical application, when the received BWP information contains at least the activated BWP and/or the default BWP information, the target base station will also configure a Timer for activating the BWP for the terminal; the terminal exceeds the Timer duration on the activated BWP. When there is no data transmission or scheduling, 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 the Timer for activating the BWP configured by the target base station and the terminal.

In practical application, in order to save sending resources, various ways can be used to indicate the BWP information. specifically,

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

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

For the above-mentioned default BWP information, the sending unit 62 sends a handover command carrying third indication information, such as 1 bit, to the terminal; the third indication information is used for the terminal to use the third indication information and the source base station The default BWP information configured for the terminal is determined, 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; the sending unit 62 is further configured to:

When sending the determined BWP information to the terminal, send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information:

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

bitmap information; the bitmap information is used for the terminal to determine the 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 foremost or the last, and the like.

In practical application, the second determining unit 61 may be implemented by a processor in a BWP-based processing device, and the sending unit 62 may be implemented by a communication interface in the BWP-based device.

It should be noted that: when the BWP-based processing device provided in the above-mentioned embodiments performs BWP-based processing, only the division of the above-mentioned program modules is used as an example for illustration. In practical applications, the above-mentioned processing can be allocated by different 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 above-described processing. In addition, the BWP-based processing apparatus and the BWP-based processing method embodiments provided by the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiments, which will not be repeated here.

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

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

The first processor 72 is connected to the first communication interface 71 to realize information interaction with the network device, and is used to execute the method provided by one or more of the above technical solutions when running the computer program. And the computer program is stored on the first memory 73 .

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

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

Wherein, in an embodiment, the timing of sending the BWP information by the network side 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 is the The terminal allocates its BWP information corresponding to the target cell (that is, after determining 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 measurement reference symbols sent by the network side.

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

In one embodiment, the first communication interface 71 is specifically used for:

Receive a handover command that is sent by the network side and carries the received BWP information.

Correspondingly, the handover command may also carry relevant information of measurement reference symbols (frequency domain location information and SCS), 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

Wherein, in practical application, when the received BWP information at least includes activated BWP and/or default BWP information, the target base station will also configure a Timer for activating BWP for the terminal; When there is no data transmission or scheduling 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 for activating BWP configured by the target base station for the terminal.

In practical application, in order to save sending resources, various ways can be used to indicate the BWP information. specifically,

For all the above-mentioned BWP information, the first communication interface 71 can receive the handover command that carries the first indication information sent by the network side, such as 1 bit, etc.;

The first processor 72 uses the first indication information and the BWP information configured for the terminal by the source base station to determine all the BWP information configured for the terminal by the target base station.

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

The first processor 72 uses the second indication information and the activated BWP information configured for the terminal by the source base station to determine the activated BWP information configured by the target base station for the terminal.

For the above-mentioned default BWP information, the first communication interface 71 may receive a handover command, such as 1 bit, which is sent by the network side and carries the third indication information;

The first processor 72 uses the third indication information and the default BWP information configured for the terminal by the source base station to determine the default BWP information configured by the target 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 specifically configured to determine the activated BWP information in one of the following ways:

Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information;

Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence;

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

According to the determined activated BWP information, determine the working bandwidth in the target cell.

Of course, in practical application, the terminal 70 may further include: a user interface 74 . The various components in terminal 70 are coupled together by bus system 75 . It will be appreciated that the bus system 75 is used to implement the connection communication between these components. In addition to the data bus, the bus system 75 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the various buses are labeled as bus system 75 in FIG. 7 .

User interface 74 may include a display, keyboard, mouse, trackball, click wheel, keys, buttons, touch pad or touch screen, and the like.

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

The methods disclosed in the above embodiments of the present invention 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 capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the first processor 72 or an instruction in the form of software. The above-mentioned first processor 72 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The first processor 72 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the first memory 73, and the first processor 72 reads the information in the first memory 73, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal 70 may be implemented by one or more Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex) Programmable Logic Device), Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronic components to achieve , used to perform the aforementioned method.

In order to implement the method of the embodiment of the present invention and based on the hardware implementation of the above program modules, the embodiment of the present invention further provides a network device. As shown in FIG. 8 , the device 80 includes:

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

The second processor 82 is connected to the second communication interface 81 to realize information exchange with the terminal, and is used to execute the method provided by one or more of the above technical solutions when running the computer program. And 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 used to send 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 the working bandwidth for the terminal to determine the target cell.

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

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

In one embodiment, the second communication interface 81 is specifically used for:

A handover command carrying BWP information is sent to the terminal.

Correspondingly, the handover command may also carry relevant information of measurement reference symbols (frequency domain location information and SCS), 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;

Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs.

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

In practical application, in order to save sending resources, various ways can be used to indicate the BWP information. specifically,

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

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

For the above-mentioned default BWP information, the second communication interface 81 sends a handover command carrying third indication information, such as 1 bit, to the terminal; the third indication information is used for the terminal to use the third indication information and The source base station is the default BWP information configured for the terminal, and the target base station is determined as the 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 second communication interface 81 is further used for:

When sending the determined BWP information to the terminal, send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information:

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

bitmap information; the bitmap information is used for the terminal to determine the 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 foremost or the last, and the like.

Of course, in practical application, as shown in FIG. 8 , various components in the network device 80 are coupled together through a bus system 84 . It will be appreciated that the bus system 84 is used to implement the connection communication between these components. In addition to the data bus, the bus system 84 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the various buses are designated as bus system 84 in FIG. 8 .

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

The methods disclosed in the above embodiments of the present invention 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 capability. In the implementation process, each step of the above-mentioned method may be completed by a hardware integrated logic circuit in the second processor 82 or an instruction in the form of software. The above-mentioned second processor 82 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The second processor 82 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, the storage medium is located in the second memory 83, the second processor 82 reads the information in the second memory 83, and completes the steps of the foregoing method in combination with its hardware.

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 for Perform the preceding method.

It can be understood that the memory (for example, the first memory 73 and the second memory 83 ) in this embodiment of the present invention may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memories . Among them, the non-volatile memory may be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory) Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), Magnetic Random Access Memory (FRAM, ferromagneticrandom access memory), Flash Memory, Magnetic Surface Memory, Optical Disc, Or compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); magnetic surface memory can be magnetic disk memory or tape memory. The volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache memory. 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 Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory Access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), Direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory). The memory described in the embodiments of the present invention is intended to include, but not be limited to, these and any other suitable types of memory.

To implement the method of the embodiment of the present invention, the embodiment of the present invention 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; wherein,

The target base station 93 is configured to send the determined BWP information of the terminal 91 in the target cell to the terminal 91 through the source base station 92 during the handover process after the source base station 92 determines that the terminal performs cell handover ;

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

In an embodiment, the source base station 92 is configured to send a handover request command to the target base station 93 that carries at least one of the following information of the terminal: information about bandwidth capabilities 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 based on the information carried by the handover request command, determine the BWP information corresponding to the terminal in the target cell and the determined BWP transmission mode, That is, how to send the BWP information, that is, to send the BWP information in the above-mentioned manner.

The source base station 92 configures at least two 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 information one:

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

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

Alternatively, the target base station 93 is configured to use the BWP information at a specific position 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 the BWP information corresponding to the terminal 91 in the target cell;

The source base station 92 is configured to receive the handover request response or handover command; transparently transmit the BWP information in the received request response or handover command to the terminal 91, or transmit the BWP corresponding to the terminal 91 in the target cell The information is sent to the terminal 91 through the 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 with reference to the method.

In an exemplary embodiment, an embodiment of the present invention further provides a storage medium, which may be a computer-readable storage medium, for example, a first memory 73 including a computer program, and the above-mentioned computer program can be stored by the first processor 72 of the terminal 70 Execute to complete the steps of the aforementioned terminal method, or include a second memory 83 of a computer program that can be executed by the second processor 82 of the network device 80 to complete the aforementioned steps of the aforementioned network device side method.

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

It should be noted that the technical solutions described in the embodiments of the present invention may be combined arbitrarily unless there is a conflict.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (31)

1. A processing method based on a partial bandwidth BWP, characterized in that, applied to a terminal, the method comprising: Receive the BWP information sent by the network side during the handover process; Determine the working bandwidth in the target cell; wherein, When receiving the BWP information sent by the network side, the method further includes: receiving the frequency domain location information of the measurement reference symbols sent by the network side; The subcarrier spacing of the measurement reference symbols sent by the network side is received. 2 . The method according to claim 1 , wherein a handover command that carries relevant information of measurement reference symbols sent by the network side is received. 3 . 3. The method according to claim 1, wherein the receiving BWP information sent by the network side comprises: Receive a handover command that is sent by the network side and carries the received BWP information. 4. The method according to any one of claims 1 to 3, 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; Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs. 5. The method according to claim 4, wherein when the received BWP information at least contains activated BWP and/or default BWP information, the method further comprises: Receive the timer Timer for activating BWP configured by the target base station for the terminal; wherein, the terminal switches to the default BWP when there is no data transmission or scheduling on the activated BWP for more than the Timer duration. 6. The method according to claim 4, wherein receiving a handover command carrying the first indication information sent by the network side; Using the first indication information and the BWP information configured by the source base station for the terminal, determine all the BWP information configured by the target base station for the terminal. 7. The method according to claim 4, wherein receiving a handover command that carries second indication information and is sent by the network side; Using the second indication information and the activated BWP information configured for the terminal by the source base station, determine the activated BWP information configured by the target base station for the terminal. 8. The method according to claim 4, wherein receiving a handover command that carries third indication information and is sent by the network side; Using the third indication information and the default BWP information configured for the terminal by the source base station, the default BWP information configured by the target base station for the terminal is determined. 9. The method according to claim 1, wherein the received BWP information is at least two BWP information configured by the target base station for the terminal; The determining of the working bandwidth in the target cell includes: Determine the activated BWP information in one of the following ways: Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information; Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence; Determine the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information; According to the determined activated BWP information, determine the working bandwidth in the target cell. 10. A BWP-based processing method, characterized in that, applied to a network side device, the method comprising: During the handover process, the determined BWP information corresponding to the terminal in the target cell is sent to the terminal; the sent BWP information is used to determine the working bandwidth for the terminal to determine the target cell; wherein, When sending the determined BWP information to the terminal, the method further includes: sending frequency domain location information of measurement reference symbols to the terminal; The subcarrier spacing of the measurement reference symbols is sent to the terminal. The method according to claim 10, wherein the sending the frequency domain location information of the measurement reference symbols to the terminal comprises: A handover command carrying relevant information of measurement reference symbols is sent to the terminal. 12. The method according to claim 10, wherein the sending the determined BWP information to the terminal comprises: A handover command carrying BWP information is sent to the terminal. 13. The method according to any one of claims 10 to 12, wherein 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; Other BWP information except the initial BWP, the activated BWP, and the default BWP among all the configured BWPs. 14. The method according to claim 13, wherein when the sent BWP information at least includes activated BWP and/or default BWP information, the method further comprises: Send the BWP-activated Timer configured by the target base station to the terminal; wherein, the terminal switches to the default BWP when there is no data transmission or scheduling on the activated BWP for longer than the Timer duration . 15. The method according to claim 13, wherein sending a handover command carrying the determined BWP information to the terminal comprises: Send a handover command carrying first indication information to the terminal; the first indication information is used for the terminal to use the first indication information and the BWP information configured for the terminal by the source base station to determine that the target base station is the target base station. All BWP information configured on the terminal described above. 16. The method according to claim 13, wherein the sending a handover command carrying the determined BWP information to the terminal comprises: Send a handover command carrying second indication information to the terminal; the second indication information is used for the terminal to determine the target base station by using the second indication information and the activated BWP information configured for the terminal by the source base station Active BWP information configured for the terminal. 17. The method according to claim 13, wherein the sending a handover command carrying the determined BWP information to the terminal comprises: Send a handover command carrying third indication information to the terminal; the third indication information is used for the terminal to determine the target base station by using the third indication information and the default BWP information configured for the terminal by the source base station Default BWP information configured for the terminal. The method according to claim 10, 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: Send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information: fourth indication information located in the sequence formed by the at least two BWP information; the fourth indication information is used for the terminal to determine the activated BWP information in the sequence; bitmap information; the bitmap information is used for the terminal to determine the activated BWP information in the sequence. 19. A BWP-based processing device, wherein the device comprises: a receiving unit, configured to receive the BWP information sent by the network side during the handover process; a first determining unit, configured to determine the working bandwidth in the target cell; wherein, The receiving unit is further configured to receive the frequency domain location information of the measurement reference symbols sent by the network side when receiving the BWP information sent by the network side; and receive the subcarrier spacing of the measurement reference symbols sent by the network side. 20. The apparatus according to claim 19, 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 specifically configured to determine activated BWP information in one of the following ways: Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information; Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence; Determine the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information; According to the determined activated BWP information, determine the working bandwidth in the target cell. 21. A BWP-based processing device, wherein the device comprises: a second determining unit, configured to determine that the terminal performs cell handover; a sending unit, configured to send 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 the working bandwidth for the terminal to determine in the target cell; wherein, The sending unit is further configured to send the frequency domain location information of the measurement reference symbol to the terminal when sending the determined BWP information to the terminal; and send the subcarrier spacing of the measurement reference symbol to the terminal. 22. The apparatus according to claim 21, 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 sending the determined BWP information to the terminal, send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information: fourth indication information located in the sequence formed by the at least two BWP information; the fourth indication information is used for the terminal to determine the activated BWP information in the sequence; bitmap information; the bitmap information is used for the terminal to determine the activated BWP information in the sequence. 23. A terminal, wherein the terminal comprises: a first communication interface, used for receiving BWP information sent by the network side during the handover process; a first processor, configured to determine the working bandwidth in the target cell; wherein, The first communication interface is further configured to receive the frequency domain location information of the measurement reference symbols sent by the network side when receiving the BWP information sent by the network side; and receive the subcarrier spacing of the measurement reference symbols sent by the network side . 24. The terminal according to claim 23, wherein the received BWP information is at least two BWP information configured by the target base station for the terminal; The first processor is specifically configured to determine the activated BWP information in one of the following ways: Using the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information; Find fourth indication information from the sequence formed by the at least two BWP information; determine the activated BWP information according to the position of the fourth indication information in the sequence; Determine the activated BWP information from the sequence formed by the at least two BWP information according to the received bitmap information; According to the determined activated BWP information, determine the working bandwidth in the target cell. 25. A network device, characterized in that the device comprises: a second processor, configured to determine that the terminal performs cell handover; The second communication interface is used to send 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 the working bandwidth for the terminal to determine in the target cell; wherein, The second communication interface is further configured to send the frequency domain location information of the measurement reference symbols to the terminal when sending the determined BWP information to the terminal; and send the subcarrier spacing of the measurement reference symbols to the terminal. 26. The device according to claim 25, wherein the determined BWP information is at least two BWP information configured by the target base station for the terminal; the second communication interface is further configured to: When sending the determined BWP information to the terminal, send the indication information of the activated BWP information to the terminal; the indication information of the activated BWP information includes one of the information: fourth indication information located in the sequence formed by the at least two BWP information; the fourth indication information is used for the terminal to determine the activated BWP information in the sequence; bitmap information; the bitmap information is used for the terminal to determine the activated BWP information in the sequence. 27. A BWP-based processing system, characterized in that the system comprises: a terminal, a source base station and a target base station; wherein, The target base station is configured to send the determined BWP information of the terminal in the target cell to the terminal through the source base station during the handover process after the source base station determines that the terminal performs cell handover; to the terminal When the determined BWP information is sent, the frequency domain location information of the measurement reference symbol is sent to the terminal, and the subcarrier spacing of the measurement reference symbol is sent to the terminal; The terminal is configured to receive the BWP information sent by the network side during the handover process; and determine the working bandwidth of the target cell; when receiving the BWP information sent by the network side, receive the frequency domain position of the measurement reference symbol sent by the network side information, and receive the subcarrier spacing of the measurement reference symbols sent by the network side. 28. The system according to claim 27, wherein the source base station is configured to send a handover request command to the target base station that carries at least one of the following information of the terminal: bandwidth capability information supported by the terminal ; BWP information configured for the terminal itself; The target base station is further configured to receive a handover request command sent by the source base station, and determine the BWP information corresponding to the terminal in the target cell and the determined BWP sending mode. 29. The system according to claim 28, wherein the source base station configures at least two BWP information for the terminal; the source base station is further configured to send the activated BWP information to the target base station. Indication information; the indication information of the activated BWP information includes one of the information: fifth indication information located in the sequence formed by the at least two BWP information; the fifth indication information is used for the target base station to determine the activated BWP information in the sequence; bitmap information; the bitmap information is used for the target base station to determine the activated BWP information in the sequence; Alternatively, the target base station is configured to use the BWP information at a specific position in the sequence formed by the at least two BWP information as the activated BWP information. 30. The system according to claim 27, 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 terminal in the target cell; The source base station is used to receive the handover request response or handover command; transparently transmit the BWP information in the received request response or handover command to the terminal, or transmit the BWP information corresponding to the terminal in the target cell through the air interface sent to the terminal. 31. A storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method of any one of claims 1 to 9 are implemented, or any one of claims 10 to 18 is implemented. A step of the method.

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