WO2020221066A1

WO2020221066A1 - Communication method and apparatus

Info

Publication number: WO2020221066A1
Application number: PCT/CN2020/085938
Authority: WO
Inventors: 肖洁华; 李新县; 唐浩; 王轶
Original assignee: 华为技术有限公司
Priority date: 2019-04-29
Filing date: 2020-04-21
Publication date: 2020-11-05
Also published as: CN111867064A; CN111867064B

Abstract

Provided are a communication method and apparatus. An identifier associated with a BWP on another cell is configured on one cell, and by means of indicating the identifier, a terminal device maintains, insofar as a BWP that is currently in an activated state on another cell is the BWP associated with the identifier, the activated state of the currently activated BWP, deactivates, insofar as the BWP that is currently in the activated state on another cell is not the BWP associated with the identifier, the BWP that is currently in the activated state and activates the BWP associated with the identifier, and activates, insofar as no BWP in the activated state currently exists on another cell, the BWP associated with the identifier. Without the need to monitor a PDCCH on another cell, the terminal device can learn whether an activated BWP on another cell needs to be changed , or can learn whether a BWP, associated with the identifier, on another cell needs to be activated; therefore, the power consumption of the terminal device can be reduced.

Description

Communication method and device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201910357036.8, and the application name is "Communication Method and Device" on April 29, 2019, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of communication, and more specifically, to a communication method and device.

Background technique

In current communication technology, a network device can configure one or more bandwidth parts (BWP) for a terminal device in a cell (also called a carrier), and a terminal device can have only one activated BWP in a cell. Sending and receiving of data. The network device can indicate whether the terminal device needs to change the active BWP of the cell through downlink control information (DCI) carried in a physical downlink control channel (PDCCH) sent in a cell. For scenarios with multiple cells, such as carrier aggregation (CA) or dual connection (DC) scenarios, the terminal device needs to blindly check the PDCCH of multiple cells to learn whether to change multiple cells. Activating BWP is not conducive to saving power consumption.

Summary of the invention

This application provides a communication method and device, which can save power consumption of terminal equipment.

In the first aspect, a communication method and device are provided. The method can be executed by a terminal device or a module (such as a chip) in the terminal device.

The method includes: receiving first indication information on a first cell, the first indication information including a first identifier configured in the first cell, and the first identifier is associated with the first BWP of the second cell; The activated BWP of the second cell is switched to the first BWP of the second cell.

According to the communication method provided in the present application, by associating an identifier (for example, the first identifier) configured on the first cell with the first BWP on the second cell, it is possible to realize that the first identifier is sent on the first cell. The first indication information of indicates that the second cell will switch the activated BWP to the first BWP of the second cell. Specifically, according to the first identifier, if the BWP currently in the active state on the second cell is the first BWP, the terminal device maintains (or is referred to as keeping) the active state of the first BWP. If the BWP currently in the active state on the second cell is not the first BWP, the terminal device deactivates the BWP currently in the active state and activates the first BWP. If the second cell does not currently have an activated BWP, the terminal device activates the first BWP on the second cell. Therefore, according to the communication method provided in this application, the terminal device does not need to monitor the PDCCH on the second cell, and can achieve the purpose of knowing whether the activated BWP of the second cell needs to be changed, or it can know whether the second cell needs to be activated. A BWP, which can save the power consumption of the terminal equipment.

It should be noted that the first cell and the second cell may be two different cells. Wherein, the first BWP on the Nth cell may be one BWP on the Xth cell, or may be multiple BWPs on the Xth cell. The BWP currently in the active state of the Xth cell may be one BWP or multiple BWPs. The Xth cell may be any cell such as the first cell, the second cell, and the third cell.

It should also be noted that in this application, if the currently active BWP and target BWP (for example, the first BWP of the second cell, the first BWP of the third cell, or the first BWP of the first cell, etc.) are For the same BWP, the terminal device does not change the BWP according to the first indication information, but the terminal device can update the identifier (identifier, ID) of the activated BWP to the first identifier. Currently, the terminal device may not update the ID of the activated BWP, which is not limited in this application.

Optionally, the first indication information may be one of radio resource control (radio resource control, RRC) signaling, media access control (media access control, MAC) control element (CE), or physical control channel Or multiple carry. The physical control channel may be, for example, a PDCCH or a physical sidelink control channel (physical sidelink control channel, PSCCH).

When the first indication information is carried through the PDCCH signaling, it can meet the scenario where the BWP handover delay is relatively high.

Optionally, when the first indication information is the PDCCH, the PDCCH may not perform data scheduling. Thus, the flexibility of signaling can be improved.

Optionally, the radio frequency transceiving parameters of the first BWP of the second cell may be the same as the radio frequency transceiving parameters of the currently activated BWP of the second cell.

By making the radio frequency transmitting and receiving parameters of the BWP in the active state before the change and the BWP in the active state after the change the same, the time delay caused by the change of the BWP can be reduced. The radio frequency transceiver parameters may include, for example, one or more of the center frequency of the BWP reception, the reception bandwidth, subcarrier spacing (SCS), and antenna configuration.

With reference to the first aspect, in some implementations of the first aspect, the first identifier is also associated with the first BWP of the third cell. And, the method further includes: switching the activated BWP of the third cell to the first BWP of the third cell according to the first identifier.

Based on this solution, by simultaneously associating the first identifier with the first BWP of the second cell and the first BWP of the third cell, the first indication information can be used to simultaneously indicate whether to change the activated BWP of the second cell (or activate the second cell BWP) and the activated BWP of the third cell (or activated BWP of the third cell). Therefore, it is not necessary for both the second cell and the third cell to monitor the PDCCH, which can further save the power consumption of the terminal device. In addition, because the signaling of the first indication information can simultaneously indicate whether to change the activated BWP of the second cell and the activated BWP of the third cell, or whether to activate the BWP of the second cell and the BWP of the third cell, it can save Signaling overhead.

It should be understood that the first identifier may also be associated with the BWP of more cells.

In one technology, for the scenario of multiple cells, if the terminal device needs to change the activated BWP on multiple cells, the terminal device can activate the BWP on another cell after completing the change of the activated BWP on one cell. change. If the terminal device uses the same transceiver channel in multiple cells, the change of the active BWP of the terminal device in one cell will affect the data transmission and reception in other cells, thereby reducing the data transmission efficiency.

According to the solution of the present application, it is realized that the terminal device activates the BWP on multiple cells at the same time to change, so it can improve the transmission efficiency and save the signaling overhead.

With reference to the first aspect, in some implementation manners of the first aspect, the first identifier is also associated with the first BWP of the first cell. And, the method further includes: switching the activated BWP of the first cell to the first BWP of the first cell according to the first identifier.

By associating the first identity with the BWP on the cell where the first identity is located, the purpose of changing or activating the BWP on the first cell can be achieved.

With reference to the first aspect, in some implementations of the first aspect, before the activated BWP of the second cell is switched to the first BWP of the second cell, the activated BWP of the second cell is associated with the second identity.

Further, the second identifier is also associated with the activated BWP of the fourth cell.

The fourth cell may be one or more of the first cell, the second cell, and the third cell, or may be another cell different from the three cells.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: receiving second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell; The second indication information updates the identification of the activated BWP of the first cell from the first identification to the identification of the first BWP of the first cell, and maintains the state of the first BWP of the first cell as the activated state.

That is to say, if the BWP currently in the active state of the first cell and the first BWP of the first cell are the same BWP, the terminal device can maintain the state of the first BWP of the first cell in the active state according to the second indication information , But the terminal device may update the identification of the activated BWP of the first cell from the first binding identification to the identification of the first BWP of the first cell.

Optionally, the second indication information may be carried by one or more of RRC signaling, MAC CE, or physical control channel. The physical control channel may be, for example, PDCCH or PSCCH.

With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: receiving configuration information. The configuration information is used to configure the first identifier.

Further, the configuration information is also used to configure the association relationship between the first identifier and the first BWP of the second cell.

It should be understood that the association relationship between the first identifier and the first BWP of the second cell may also be predefined.

In a second aspect, a communication method is provided, including: sending first indication information on a first cell, the first indication information including a first identifier configured in the first cell, the first identifier and the first bandwidth of the second cell Part of the BWP is associated; on the first BWP of the second cell, it communicates with the terminal device.

The terminal device can communicate with the network device on the activated BWP, but cannot communicate with the network device on the inactive or deactivated BWP. If the currently active BWP of the second cell is the first BWP of the second cell, the terminal device may communicate with the network device on the first BWP of the second cell without changing the BWP. Optionally, the terminal device may update the identification of the activated BWP of the second cell. If the currently activated BWP of the second cell is not the first BWP of the second cell, but another BWP, the terminal device needs to activate the first BWP of the second cell and deactivate the other BWP before it can Communicate with the network device on the first BWP of the second cell. If the BWP of the second cell is not currently activated, the terminal device needs to activate the first BWP of the second cell before it can communicate with the network device on the first BWP of the second cell.

Therefore, according to the communication method provided by this application, the network device can send the first indication information on the first cell, so that the terminal device can learn whether the activation of the second cell needs to be changed without monitoring the PDCCH on the second cell. BWP, or it can be known whether the first BWP of the second cell needs to be activated, so that the power consumption of the terminal device can be saved.

With reference to the second aspect, in some implementations of the second aspect, the first identifier is further associated with the first BWP of the third cell. And, the method further includes: communicating with the terminal device on the first BWP of the third cell.

If the currently active BWP of the third cell is the first BWP of the third cell, the terminal device may communicate with the network device on the first BWP of the third cell without changing the BWP. Optionally, the terminal device may update the BWP activation identifier of the third cell. If the currently activated BWP of the third cell is not the first BWP of the third cell, but another BWP, the terminal device needs to activate the first BWP of the third cell and deactivate the other BWP before it can Communicate with the network device on the first BWP of the third cell. If the BWP of the third cell is not currently activated, the terminal device needs to activate the first BWP of the third cell before it can communicate with the network device on the first BWP of the third cell.

Therefore, according to the communication method provided by the present application, in certain application scenarios, it is also possible to implement simultaneous changes to the activated BWP of multiple cells by the terminal device, thereby improving transmission efficiency and saving signaling overhead.

With reference to the second aspect, in some implementations of the second aspect, the first identifier is also associated with the first BWP of the first cell. And, the method further includes: communicating with the terminal device on the first BWP of the first cell.

Similar to communicating with the terminal device on the first BWP of the second cell and communicating with the terminal device on the first BWP of the third cell, the network device (or terminal device) maintains the current status of the first cell according to the first identifier. The activated state of the BWP in the activated state, or activates the first BWP of the first cell and deactivates the currently activated BWP of the first cell, or activates the first BWP of the first cell.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: sending second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell.

According to the second indication information, the terminal device determines that if the BWP currently in the active state of the first cell is the first BWP, then maintain the state of the first BWP of the first cell as the active state, and change the identifier of the active BWP of the first cell from The first binding identifier is updated to the identifier of the first BWP of the first cell.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: sending configuration information, where the configuration information is used to configure the first identifier.

In a third aspect, a device is provided, which includes modules or units for executing the method in the first aspect and any one of the possible implementation manners of the first aspect.

In a fourth aspect, an apparatus is provided, including a processor. The processor is coupled with the memory and can be used to execute instructions in the memory, so that the device executes the foregoing first aspect and the method in any one of the possible implementation manners of the first aspect. Optionally, the device further includes a memory. Optionally, the device further includes an interface circuit, and the processor is coupled with the interface circuit.

In one implementation, the device is a terminal device. When the device is a terminal device, the interface circuit can be a transceiver, or an input/output interface.

In another implementation manner, the device is a chip configured in a terminal device. When the device is a chip configured in a terminal device, the interface circuit may be an input/output interface.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a fifth aspect, a device is provided, which includes modules or units for executing the method in the second aspect and any one of the possible implementation manners of the second aspect.

In a sixth aspect, an apparatus is provided, including a processor. The processor is coupled with the memory and can be used to execute instructions in the memory, so that the device executes the foregoing second aspect and the method in any one of the possible implementation manners of the second aspect. Optionally, the device further includes a memory. Optionally, the device further includes an interface circuit, and the processor is coupled with the communication interface.

In one implementation, the device is a network device. When the device is a network device, the interface circuit can be a transceiver, or an input/output interface.

In another implementation manner, the device is a chip configured in a network device. When the device is a chip configured in a network device, the interface circuit may be an input/output interface.

In a seventh aspect, a processor is provided, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, so that the processor executes the method in any one of the first aspect to the second aspect and any one of the first aspect to the second aspect.

In a specific implementation process, the foregoing processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter, and the input circuit and output The circuit can be the same circuit, which is used as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.

In an eighth aspect, a processing device is provided, including a processor and a memory. The processor is used to read instructions stored in the memory, receive signals through a receiver, and transmit signals through a transmitter to execute any one of the first aspect to the second aspect and any one of the first aspect to the second aspect. Methods.

Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory and the processor may be provided separately.

In the specific implementation process, the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the setting mode of the memory and the processor.

It should be understood that the related data interaction process, for example, sending the first indication information may be a process of outputting control information from the processor, and receiving the first indication information may be a process of the processor receiving the first indication information. Specifically, the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver. Among them, the transmitter and receiver can be collectively referred to as a transceiver.

The processing device in the above eighth aspect may be a chip, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software When implemented, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory. The memory may be integrated in the processor, may be located outside the processor, and exist independently.

In a ninth aspect, a computer program product is provided. The computer program product includes: a computer program (also called code, or instruction), which when the computer program is run, causes the computer to execute the first to second aspects above And the method in any one of the possible implementation manners of the first aspect to the second aspect.

In a tenth aspect, a computer-readable medium is provided, and the computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the first to second aspects above. Aspect and the method in any one of the possible implementation manners of the first aspect to the second aspect.

In an eleventh aspect, a communication system is provided, including the aforementioned network device and/or terminal device.

Description of the drawings

Figure 1 is a schematic diagram of a communication system provided by this application;

Figure 2 is a schematic diagram of another communication system provided by the present application;

Figure 3 is a schematic diagram of the impact of BWP changes in two cells on normal communication;

Fig. 4 is a schematic flowchart of the communication method provided by the present application;

Figures 5 to 14 are schematic diagrams of BWP changes according to the communication method provided in this application;

Fig. 15 is a schematic block diagram of a device provided by the present application;

FIG. 16 is a schematic structural diagram of a terminal device provided by the present application;

Fig. 17 is a schematic block diagram of another device provided by the present application.

Detailed ways

The technical solution in this application will be described below in conjunction with the drawings.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), the 5th generation (5G) system or the new radio (NR), or the future evolution of the communication system.

The terminal equipment in the embodiments of this application may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G or NR networks, or future evolution of public land mobile network (PLMN) This is not limited by the embodiment of the present application.

The network equipment in the embodiments of this application may be equipment used to communicate with terminal equipment. The network equipment may be an evolved NodeB (eNB or eNodeB) in an LTE system, or a gNodeB in a 5G or NR network. (gNB), it can also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, or a transmission node (transmission node). The reception point, TRP) and the network equipment in the future evolved PLMN network, etc., are not limited in the embodiment of the present application.

In the embodiment of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, the embodiments of the application do not specifically limit the specific structure of the execution body of the methods provided in the embodiments of the application, as long as the program that records the codes or instructions of the methods provided in the embodiments of the application can be executed according to the application. For example, the execution subject of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call codes or instructions and execute the method, Processor, or chip, etc.

In addition, various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

The solution of the present application can be applied to CA scenarios, DC scenarios, and other multi-carrier or multi-cell scenarios.

CA aggregates two or more component carriers (CC) to support a larger transmission bandwidth. A carrier unit is sometimes called a carrier or a cell. In this application, the terms carrier, carrier unit, and cell are interchangeable.

DC means that at least two carrier units used for aggregation are configured on different network devices. Among them, there is at least one carrier unit on each of the main network device and the auxiliary network device. The terminal device can communicate with the main network device and the auxiliary network device.

Fig. 1 is a schematic diagram of a communication system 100 applicable to the present application. Referring to FIG. 1, the system 100 includes at least one terminal device 110 and at least one network device 120. The terminal device 110 and the network device 120 can work in a CA scenario. For example, CC#1 and CC#2 on the network device 120 can be aggregated to serve the terminal device 110. It should be understood that the network device 120 may also aggregate more CCs, and only two CCs are used as an example for illustration.

FIG. 2 is a schematic diagram of another communication system 200 applicable to the present application. Referring to FIG. 2, the system 200 includes a terminal device 210, a network device 220, and a network device 230. The terminal device 210, the network device 220, and the network device 230 may communicate in a DC manner. For example, CC#3 on the network device 220 and CC#4 on the network device 230 can be aggregated to serve the terminal device 210. It should be understood that the network device 220 and the network device 230 may also aggregate more CCs to serve the terminal device 210.

It should be understood that FIG. 1 and FIG. 2 are only exemplary illustrations, and should not constitute any limitation to the application. In fact, the system 100 and the system 200 may also include more terminal devices and network devices, and further, may also include other devices such as core network devices.

In one technology, the network device can indicate whether the terminal device needs to change the activated BWP of the cell through the DCI carried in the PDCCH sent by a cell, that is, whether it needs to deactivate the currently activated BWP and activate another BWP . For scenarios with multiple cells, such as CA or DC scenarios, the terminal device needs to blindly check the PDCCHs of multiple cells to learn whether to change the activated BWP of multiple cells, which is not conducive to saving power consumption.

In another technology, if there is no active BWP on a cell, the network device can instruct the terminal device to activate a certain BWP on the cell through the DCI carried in the PDCCH sent by the cell. For scenarios with multiple cells, such as CA or DC scenarios, the terminal device needs to perform blind detection on the PDCCHs of multiple cells to learn which BWP in each cell needs to be activated, which is not conducive to saving power consumption.

In another technology, for the scenario of multiple cells, if the terminal device needs to change the activated BWP on multiple cells, the terminal device can activate the BWP on another cell after completing the change of the activated BWP on one cell Changes. The change of the activated BWP of the terminal equipment in one cell may affect the data transmission and reception in other cells, thereby reducing the data transmission efficiency. For example, when a terminal device uses the same transceiver channel on multiple cells, or when the frequencies of multiple cells are in the same frequency range, and their radio frequency transceivers are related to each other, the change of the activated BWP on one cell will affect the changes in other cells. Data transmission and reception. For example, referring to Fig. 3, the terminal equipment works on cell 1 and cell 2. When the activated BWP needs to be changed on cell 1, the terminal equipment can complete the activated BWP change on cell 1 within the T1 time period. In the process of changing the activated BWP of cell 1, the terminal device cannot transmit and receive data in cell 2 during the time period of T2. If the terminal device also needs to change the activated BWP of cell 2, then it will not be able to send and receive data for a while on cell 2, and it will not be able to send and receive data for a while on cell 1. It should be understood that FIG. 3 only shows that there is a time period of T2 in the time period T1, and the cell 2 cannot send and receive data during the time period of T2. The application does not limit the start time and end time of T2.

Based on the above problems, this application provides a communication method. By associating an identifier (for example, the first identifier) configured on the first cell with the first BWP on the second cell, it is possible to realize the Send the first indication information including the first identifier to indicate whether the activated BWP on the second cell is changed. If the BWP currently in the active state on the second cell is the first BWP, the terminal device maintains (or is referred to as keeping) the active state of the first BWP. If the BWP currently in the active state on the second cell is not the first BWP, the terminal device deactivates the BWP currently in the active state and activates the first BWP. If there is currently no BWP in the activated state on the second cell, the terminal device activates the first BWP on the second cell according to the first identifier.

Further, in addition to being associated with the first BWP of the second cell, the first identifier may also be associated with the BWP of more cells, for example, it may be associated with the first BWP of the third cell. Therefore, the network device can send the first indication information including the first identifier on the first cell, and at the same time indicate whether the terminal device needs to change the activated BWP of the second cell and the third cell. If neither the BWP currently in the active state on the second cell nor the third cell is the first BWP of the corresponding cell, then the terminal device can be changed while activating the BWP on the second cell and the third cell.

Therefore, according to the communication method provided in this application, the terminal device does not need to monitor the PDCCH on the second cell, and can achieve the purpose of knowing whether the activated BWP of the second cell needs to be changed, or it can know whether the second cell needs to be activated. A BWP, which can save the power consumption of the terminal equipment.

In addition, according to the communication method provided by the present application, in certain application scenarios, it is also possible to realize that the terminal device activates the BWP on multiple cells at the same time to change, thereby improving transmission efficiency and saving signaling overhead.

It should be noted that the first cell and the second cell in this application may be two different cells. Wherein, the first BWP on the first cell may be one BWP on the first cell, or may be multiple BWPs on the first cell. The first BWP on the second cell may be one BWP on the second cell, or may be multiple BWPs on the second cell. Similarly, the first BWP on the third cell may be one BWP on the third cell, or may be multiple BWPs on the third cell.

Hereinafter, in order to distinguish the identity from the existing BWP, the identity configured on the cell is referred to as a binding identity.

It should be understood that the binding identifier may also be referred to as a binding index, etc. This application does not limit the specific name of the identifier (for example, the first identifier) configured on the cell. In an implementation manner, the binding identifier may have the same expression form as the existing BWP identifier, or in other words, the binding identifier may be an existing BWP identifier, but its meaning is different from the existing BWP identifier. In addition, the BWP identifier (or binding identifier, etc.) can be represented by information bits, and this application does not limit the number of information bits used to represent the BWP identifier. For example, the number of information bits indicating the BWP identifier may be greater than or equal to 2 bits, such as 2 bits, 3 bits, or 4 bits.

Hereinafter, the communication method provided in the present application will be described in detail with reference to FIG. 5 to FIG. 14.

FIG. 5 is a schematic diagram of a communication method 500 provided by the present application. The method 500 may include S520 and S530. Optionally, the method may further include S510. The steps are described below.

S510: The network device sends configuration information to the terminal device. Correspondingly, the terminal device receives the configuration information.

In a possible implementation manner, the configuration information may be used to configure the binding identifier on the cell and configure the association relationship between the binding identifier and the BWP. For example, one binding identity can be associated with one or more BWPs. In the case where one binding identity is associated with multiple BWPs, the multiple BWPs can belong to one cell or multiple cells. The configuration information can be used to configure one or more binding identities on a cell, or it can be used to configure one or more binding identities on multiple cells, where there can be one binding identity on a cell, There can also be more than one.

For example, the configuration information may configure a first binding identifier (ie, an example of the first identifier) on the first cell, and the first binding identifier is associated with the first BWP of the second cell.

In another possible implementation manner, the configuration information can be used to configure the binding identity on the cell. The association relationship between the binding identifier and the BWP of the cell may be predefined.

Exemplarily, after the network device configures one or more binding identifiers through the configuration information, it can use the predefined association relationship between the one or more binding identifiers and the BWP to change or activate the BWP.

For example, the configuration information may configure the first binding identifier. The first BWP association relationship between the first binding identifier and the second cell may be predefined.

In another possible implementation manner, the configuration information may configure the association relationship between the binding identifier and the BWP of the cell. Among them, the binding identifier on the cell may be predefined.

The binding identity on the cell may be determined by, for example, the number of binding identities on the predefined cell and the value rule of the binding identity.

For example, the configuration information may configure the first BWP association relationship between the first binding identifier and the second cell. The first binding identifier may be predefined.

In addition to the above three implementation manners, the association relationship between the binding identifier and the BWP of the cell and the binding identifier on the cell may be predefined.

For example, the first binding identifier and the first BWP association relationship between the first binding identifier and the second cell may be predefined.

Exemplarily, Table 1 shows an example of the association relationship between the binding identifier and the BWP of the cell. A binding identifier can be associated with one BWP or multiple BWPs.

Table 1

The binding relationship shown in Table 1 can be seen in Figure 4. As shown in Figure 4, the binding identity 3 configured on cell 1 is associated with BWP2 on cell 1 and BWP1 on cell 2, and binding identity 4 configured on cell 1 is associated with BWP1 and cell 3 on cell 1 The binding identity 3 configured on cell 3 is associated with the BWP1 of cell 2 and the BWP1 on cell 3, and the binding identity 4 configured on cell 3 is associated with the BWP2 on cell 2.

It should be understood that the association relationship shown in Table 1 is only an exemplary description and should not constitute any limitation to the application.

Optionally, the configuration information may be through one of radio resource control (RRC) signaling, media access control (media access control, MAC) control element (CE), or physical control channel Or multiple carry. The physical control channel may be, for example, a PDCCH or a physical sidelink control channel (physical sidelink control channel, PSCCH).

It should be understood that the following description is mainly based on an example where the first binding identifier is predefined or configured on the first cell.

S520: The network device sends first indication information to the terminal device on the first cell. Correspondingly, the terminal device receives the first indication information on the first cell.

The first indication information includes the first binding identifier. As described above, the first binding identifier is associated with the first BWP of the second cell.

Optionally, the network device may send the first indication information on the activated BWP of the first cell, and correspondingly, the terminal device may receive the first indication information on the activated BWP of the first cell. In addition, the network device may also send the first indication information on the inactive BWP of the first cell. Correspondingly, the terminal device may also receive the first indication information on the inactive BWP of the first cell.

It should be noted that in the following description, the terminal device receives the instruction information (for example, the first instruction information, the second instruction information, etc.) on the activated BWP as an example, but this should not constitute anything in this application. limited.

S530: The terminal device switches the activated BWP of the second cell to the first BWP of the second cell according to the first binding identifier.

The meaning of the terminal device switching the activated BWP of the second cell to the first BWP of the second cell is:

If the currently activated BWP of the second cell is the first BWP of the second cell, the terminal device maintains the activated state of the first BWP of the second cell according to the first binding identifier. If the currently activated BWP of the second cell is not the first BWP of the second cell, such as the second BWP of the second cell, the terminal device will, according to the first binding identifier, change the active BWP of the second cell from the second The second BWP of the cell is handed over to the first BWP of the second cell, or the activated BWP of the second cell is changed to the first BWP of the second cell, or the first BWP of the second cell is activated and deactivated The second BWP of the second cell. If the second cell does not currently have an activated BWP or there is currently no activated BWP, the terminal device activates the first BWP of the second cell according to the first binding identifier.

Optionally, if the currently active BWP of the second cell is the first BWP of the second cell, the "switching of the activated BWP of the second cell to the first BWP of the second cell" can also be interpreted as the terminal device The identification of the activated BWP of the second cell is updated to the first binding identification. It should be understood that if the currently activated BWP of the second cell is the first BWP of the second cell, the terminal device may also only maintain the activated state of the first BWP of the second cell without updating according to the first binding identifier. The identification of the activated BWP of the second cell.

It should be understood that the meaning of the expression similar to "the activated BWP of the second cell is switched to the first BWP of the second cell" in the following is similar to the meaning explained here, and will not be repeated hereafter.

Optionally, S530 can be replaced by: the terminal device communicates with the network device on the first BWP of the second cell according to the first binding identifier. Correspondingly, the network device communicates with the terminal device on the first BWP of the second cell.

The terminal device can communicate with the network device on the activated BWP, but cannot communicate with the network device on the inactive or deactivated BWP. If the currently active BWP of the second cell is the first BWP of the second cell, the terminal device may communicate with the network device on the first BWP of the second cell without changing the BWP. Optionally, the terminal device may update the identification of the activated BWP of the second cell. If the currently activated BWP of the second cell is not the first BWP of the second cell, but another BWP, the terminal device needs to activate the first BWP of the second cell and deactivate the other BWP before it can Communicate with the network device on the first BWP of the second cell. If the second cell does not currently activate the BWP, the terminal device needs to activate the first BWP of the second cell before it can communicate with the network device on the first BWP of the second cell.

It should be understood that the "switching the activated BWP of cell A to the Xth BWP of cell A" described below can be replaced with: the terminal device communicates with the network device on the Xth BWP of cell A. Here, A can be the first, second, third, fourth, etc. X can be one, two, three, four, etc.

The method 500 is illustrated with reference to FIGS. 6 and 7. In Fig. 6 and Fig. 7, the BWP currently active on cell 1 of the terminal device is BWP1.

It is understandable that, in the following examples, the activated BWP is taken as an example for description. In fact, there may be multiple activated BWPs. In addition, in the following, it is assumed that the first cell and the second cell correspond to cell 1 and cell 2, respectively, the first binding identity corresponds to the binding identity 3 on cell 1, and the first BWP of the second cell corresponds to BWP1 on cell 2.

Referring to Figure 6, the currently active BWP in cell 2 is BWP2. When the terminal device receives the indication information including the binding identifier 3 on BWP1 on cell 1, it can activate BWP1 on cell 2 and deactivate cell 2. On BWP2.

Referring to FIG. 7, the currently active BWP in cell 2 is BWP1. When the terminal device receives the indication information including binding identifier 3 on BWP1 on cell 1, the active state of BWP1 on cell 2 is kept unchanged. Optionally, the terminal device may also update the identity of the activated BWP of the cell 2 to the binding identity 3.

It should be understood that if there is currently no BWP in the active state in cell 2, when the terminal device receives the indication information including the binding identifier 3 on the BWP1 on cell 1, the terminal device will activate the BWP1 on cell 2.

According to the communication method provided in this application, by associating the first binding identifier with the first BWP of the second cell, indication information can be sent on the first cell to instruct the terminal device to switch the activated BWP of the second cell to the second cell The first BWP. Therefore, the terminal device does not need to monitor the PDCCH on the second cell, which can save power consumption.

Optionally, the first indication information may be carried by one or more of RRC signaling, MAC CE, or physical control channel. The physical control channel may be, for example, PDCCH or PSCCH.

In one technology, the PDCCH is used to send the indication information (for example, the first indication information) indicating the change or activation of the BWP when data scheduling is required. That is, the PDCCH will not only carry control information related to data scheduling, but also carry Instruction information (for example, the first instruction information) indicating the modification or activation of the BWP. However, this application does not limit whether the PDCCH carrying the first indication information carries control information related to data scheduling, that is, the PDCCH carrying the first indication information may carry control information related to data scheduling, or may not carry control related to data scheduling. information. In addition, this application does not restrict whether there is data scheduling on the second cell.

Optionally, the radio frequency transceiving parameters of the first BWP of the second cell may be the same as the radio frequency transceiving parameters of the currently activated BWP of the second cell before S530 is performed. Taking Figure 6 as an example, the radio frequency transceiver parameters of BWP1 and BWP2 on cell 2 may be the same.

The baseband processing parameters related to data transmission and reception of the BWP that was active before the change and the BWP that was active after the change may be different. The baseband processing parameters related to data transmission and reception can include, for example, the monitoring period of the downlink PDCCH, the demodulation reference signal (DMRS) mapping type of the physical downlink shared channel (physical downlink share channel, PDSCH), the rate matching mode, and the channel state. One or more of information reference signal (channel state information reference signal, CSI-RS) resources, CSI report (reporting) configuration; and/or, uplink physical uplink control channel (PUCCH) resources, One or more of PUCCH format, hybrid automatic repeat reQuest (HARQ) timing, PUSCH DMRS configuration, and random access channel (RACH) resource configuration.

Optionally, the terminal device does not monitor the PDCCH on the currently activated BWP of the second cell, for example, does not monitor the BWP2 on cell 2 in FIG. 6, or the terminal device monitors the PDCCH on the currently activated BWP of the second cell for a period greater than The preset threshold, that is, the monitoring period of the PDCCH of the currently activated BWP of the second cell is greater than the preset threshold. The threshold may be predefined or configured by the network device for the terminal device. Further, the monitoring period of the PDCCH on the currently activated BWP of the first cell (for example, the BWP1 of the cell 1 in FIG. 6 and FIG. 7) is less than or equal to a preset threshold.

Based on this solution, not only the power consumption of the terminal device can be reduced, but also the terminal device can know in time whether the activated BWP of the second cell needs to be changed or whether the BWP of the second cell needs to be activated.

Figures 6 and 7 show scenarios where the first binding identifier is associated with a cell.

In the embodiment of the present application, optionally, the first binding identifier may also be associated with multiple cells.

For example, in addition to being associated with the first BWP of the second cell, the first binding identifier may also be associated with the first BWP of the third cell. In this case, the terminal device may also switch the activated BWP of the third cell to the first BWP of the third cell according to the first binding identifier.

Take the example of Fig. 8 to Fig. 10. In FIGS. 8 to 10, the BWP2 of cell 3 corresponds to the first BWP of the third cell, that is, the binding identity 3 configured on cell 1 is associated with BWP1 on cell 2 and BWP2 of cell 3. Among them, the activated BWP of the first cell is BWP1.

Referring to Figure 8, the currently active BWP in cell 2 is BWP2, and the currently active BWP in cell 3 is BWP1. When the terminal device receives the indication information including the binding identifier 3 on the BWP1 on cell 1, it can Activate BWP1 on cell 2 and deactivate BWP2 on cell 2, and at the same time activate BWP2 on cell 3 and deactivate BWP1 on cell 3.

Referring to Figure 9, the currently activated BWP in cell 2 is BWP1, and the currently activated BWP in cell 3 is BWP1. When the terminal device receives the indication information including the binding identifier 3 on the BWP1 on cell 1, it can Activate BWP2 on cell 3 and deactivate BWP1 on cell 3, while keeping the activated state of BWP1 on cell 2 unchanged. Optionally, the terminal device may also update the BWP activation identifier on the cell 2 to the binding identifier 3.

Referring to Figure 10, the currently active BWP in cell 2 is BWP1, and the currently active BWP in cell 3 is BWP2. When the terminal device receives the indication information including the binding identifier 3 on the BWP1 on cell 1, keep The active state of BWP1 on cell 2 remains unchanged, and the active state of BWP2 on cell 3 remains unchanged. Optionally, the terminal device may also update both the active BWP identifier of cell 2 and the active BWP identifier of cell 3 to binding identifier 3.

It should be understood that if there is currently no BWP in the active state in cell 2, when the terminal device receives the indication information including the binding identifier 3 on the BWP1 on cell 1, the terminal device will activate the BWP1 on cell 2. If there is currently no BWP in the active state in cell 3, when the terminal device receives the indication information including the binding identifier 3 on BWP1 on cell 1, the terminal device will activate BWP2 on cell 3.

Figures 8 to 10 show scenarios where the first binding identifier associates BWPs on two cells. In fact, the first binding identifier may also be associated with the BWPs of more cells. For example, the first binding identifier may be associated with the BWPs of 3, 4, or more cells. The manner in which the first binding identifier associates the BWP of two or more cells is similar to the manner in which the first binding identifier associates the BWP of one cell or the BWP of two cells, and will not be described in detail herein.

Optionally, in addition to being associated with other cells other than the first cell, the first binding identifier may also be associated with one or more BWPs on the first cell.

For example, the first binding identifier may also be associated with the first BWP of the first cell. In this case, the method may further include: the terminal device switches the activated BWP of the first cell to the first BWP of the first cell according to the first identifier.

It should be understood that the first BWP of the first cell is one or more BWPs. 11 and 12, the first BWP of the first cell and the first BWP of the second cell are simultaneously associated with the first binding identifier for illustration. The first BWP of the first cell corresponds to the BWP2 on the cell 1, that is, the binding identity 3 is associated with the BWP2 on the cell 1 and the BWP1 on the cell 2 at the same time.

Referring to Fig. 11, the BWP currently in the active state in cell 1 is BWP1, and the BWP currently in the active state in cell 2 is BWP2. When the terminal device receives the indication information including the binding identifier 3 on the BWP1 on the cell 1, it can activate the BWP2 on the cell 1 and the BWP1 on the cell 2, and deactivate the BWP1 on the cell 1 and the BWP2 on the cell 2.

Therefore, one indication message can be used to realize simultaneous change of the activated BWP of cell 1 and cell 2, which can improve transmission efficiency and save signaling overhead.

After the simultaneous change of the activated BWP of cell 1 and cell 2 is realized in Figure 11, the activated BWP on cell 1 and cell 2 are shown in Figure 12, that is, the activated BWP of cell 1 becomes BWP2, and the activated BWP of cell 1 becomes It is BWP1. When the network device needs to change the activated BWP on cell 1, optionally, it can send indication information including the identity of BWP1 on cell 1 on cell 1, and the terminal device can activate BWP1 on cell 1 according to the indication information. , And deactivate BWP2 on cell 1. Through this optional implementation manner, the BWP in the backward compatible cell can be handed over.

Optionally, the method illustrated in FIG. 5 may further include:

The network device sends second indication information on the first cell, where the second indication information includes the identity of the first BWP of the first cell. After receiving the second indication information, the terminal device updates the active BWP identity of the first cell from the first binding identity to the identity of the first BWP of the first cell according to the second indication information, and maintains the first BWP identity of the first cell. The state of BWP is active.

Specifically, after the terminal device switches the activated BWP of the first cell to the first BWP of the first cell associated with the first binding identifier, the network device can use the second indication information to instruct the terminal device to switch the activated BWP to The first BWP of the first cell. Since the active BWP of the first cell at this time is originally the first BWP of the first cell, the terminal device maintains the state of the first BWP of the first cell as the active state according to the second indication information, but the terminal device can The identification of the activated BWP of the first cell is updated from the first binding identification to the identification of the first BWP of the first cell.

This will be described with reference to FIG. 13. After the simultaneous change of the activated BWPs of cell 1 and cell 2 is realized in Figure 11, the activated BWPs of cell 1 and cell 2 are shown in Figure 13, that is, the activated BWP of cell 1 becomes BWP2, and the activated BWP of cell 1 becomes It is BWP1. After that, the network device may send second indication information including the ID of BWP2 to the terminal device, and the terminal device updates the ID of the activated BWP of cell 1 from the binding identifier 3 to the ID of BWP2 according to the second indication information.

Therefore, according to the method provided in the present application, it is possible to realize the switching of the identification of the activated BWP without changing the activated BWP.

Optionally, the activated BWP of the second cell is associated with the second binding identity (ie, an example of the second identity).

Exemplarily, before switching the activated BWP of the second cell to the first BWP of the second cell, the activated BWP of the second cell is associated with the second binding identifier. The second binding identifier may be configured on the first cell, may also be configured on the second cell, or may be configured on other cells, which is not limited in this application.

The second binding identifier may also be associated with the activated BWP of the fourth cell. The fourth cell may be the first cell, the second cell, or the third cell, or may be a cell different from the first cell, the second cell, and the third cell.

For example, referring to FIG. 14, before the BWP handover is performed, the active BWP on cell 2 is BWP2, and BWP2 is associated with the binding identifier 3 configured on cell 3. Further, the binding identifier 3 configured on the cell 3 may also be associated with the BWP2 on the cell 3.

Corresponding to the methods given in the foregoing method embodiments, the embodiments of the present application also provide corresponding devices, and the devices include corresponding modules for executing the foregoing embodiments. The module can be software, hardware, or a combination of software and hardware.

Figure 15 shows a schematic diagram of a device. The apparatus 1500 may be a network device, a terminal device, a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a chip that supports the terminal device to implement the above method. Or processor, etc. The device can be used to implement the method described in the foregoing method embodiment, and for details, please refer to the description in the foregoing method embodiment.

The apparatus 1500 may include one or more processors 1501, and the processor 1501 may also be referred to as a processing unit, which may implement certain control functions. The processor 1501 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute software programs, and process Software program data.

In an alternative design, the processor 1501 may also store instructions and/or data 1503, and the instructions and/or data 1503 may be executed by the processor, so that the apparatus 1500 executes the above method embodiments. Described method.

In another optional design, the processor 1501 may include a transceiver unit for implementing receiving and sending functions. For example, the transceiver unit may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuits, interfaces, or interface circuits used to implement the receiving and sending functions can be separate or integrated. The foregoing transceiver circuit, interface, or interface circuit can be used for code/data reading and writing, or the foregoing transceiver circuit, interface, or interface circuit can be used for signal transmission or transmission.

In yet another possible design, the apparatus 1500 may include a circuit, and the circuit may implement the sending or receiving or communication function in the foregoing method embodiment.

Optionally, the device 1500 may include one or more memories 1502, on which instructions 1504 may be stored, and the instructions may be executed on the processor, so that the device 1500 executes the foregoing method embodiments Described method. Optionally, data may also be stored in the memory. Optionally, instructions and/or data may also be stored in the processor. The processor and memory can be provided separately or integrated together. For example, the corresponding relationship described in the foregoing method embodiment may be stored in a memory or in a processor.

Optionally, the device 1500 may further include a transceiver 1505 and/or an antenna 1506. The processor 1501 may be called a processing unit, and controls the device 1500. The transceiver 1505 may be called a transceiver unit, a transceiver, a transceiver circuit or a transceiver, etc., for implementing the transceiver function.

In a possible design, an apparatus 1500 (for example, an integrated circuit, a wireless device, a circuit module, or a terminal device, etc.) may include a processor 1501 and a transceiver 1505. The transceiver 1505 is configured to receive first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, the first identifier and the first bandwidth of the second cell Part of the BWP association. The processor 1501 is configured to, according to the first identifier, the control apparatus 1500 switch the activated BWP of the second cell to the first BWP of the second cell.

The device provided in the embodiments of the present application can achieve the purpose of knowing whether the activated BWP of the second cell needs to be changed without monitoring the PDCCH on the second cell, or it can know whether the first cell of the second cell needs to be activated. BWP, which can save the power consumption of the device.

In some possible implementation manners of the foregoing apparatus 1500, the first identifier is further associated with the first BWP of the third cell. The processor 1501 is further configured to, according to the first identifier, the control apparatus 1500 switch the activated BWP of the third cell to the first BWP of the third cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead.

In some possible implementation manners of the foregoing apparatus 1500, the first identifier is also associated with the first BWP of the first cell. The processor 1501 is further configured to, according to the first identifier, the control apparatus 1500 switch the activated BWP of the first cell to the first BWP of the first cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead. Optionally, the transceiver 1505 is configured to receive second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell, and the processor 1501 is configured to 2. Indication information. The control device 1500 updates the identification of the activated BWP of the first cell from the first identification to the identification of the first BWP of the first cell, and maintains the identification of the first BWP of the first cell The status is active. With this optional implementation manner, it is possible to realize the switching of the identification of the activated BWP without changing the activated BWP.

In some possible implementation manners of the foregoing apparatus 1500, before switching the activated BWP of the second cell to the first BWP of the second cell, the activated BWP of the second cell is associated with the second identity. Optionally, the second identifier is also associated with the activated BWP of the fourth cell.

In some possible implementation manners of the foregoing apparatus 1500, the transceiver 1505 is further configured to receive configuration information, and the configuration information is used to configure the first identifier. Optionally, the configuration information is used to configure the association relationship between the first identifier and the first BWP of the second cell.

In a possible design, an apparatus 1500 (for example, an integrated circuit, a wireless device, a circuit module, or a network device, etc.) may include a transceiver 1505 and a processor 1501. The transceiver 1505 is configured to send first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, and the first identifier is related to the first bandwidth of the second cell Part of the BWP association. The processor 1501 is configured to control the apparatus 1500 to communicate with a terminal device on the first BWP of the second cell.

The device provided in the embodiment of the present application enables the terminal device to communicate on the BWP of the second cell without monitoring the PDCCH on the second cell, thereby achieving the purpose of saving power consumption.

In some possible implementation manners of the foregoing apparatus 1500, the first identifier is further associated with the first BWP of the third cell. The processor 1501 is configured to control the apparatus 1500 to communicate with the terminal device on the first BWP of the third cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead.

In some possible implementation manners of the foregoing apparatus 1500, the first identifier is also associated with the first BWP of the first cell. The processor 1501 is configured to control the apparatus 1500 to communicate with the terminal device on the first BWP of the first cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead. Optionally, the transceiver 1505 is configured to send second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell.

In some possible implementation manners of the foregoing apparatus 1500, the transceiver 1505 is further configured to send configuration information, and the configuration information is used to configure the first identifier. Optionally, the configuration information is used to configure the association relationship between the first identifier and the first BWP of the second cell.

The processor and transceiver described in this application can be implemented in integrated circuit (IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (ASIC), printed circuit board ( printed circuit board, PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), and P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The device described in the above embodiment may be a network device or a terminal device, but the scope of the device described in this application is not limited to this, and the structure of the device may not be limited by FIG. 15. The device can be a standalone device or can be part of a larger device. For example, the device may be:

(1) Independent integrated circuit IC, or chip, or, chip system or subsystem;

(2) A collection with one or more ICs. Optionally, the IC collection may also include storage components for storing data and/or instructions;

(3) ASIC, such as modem (MSM);

(4) Modules that can be embedded in other equipment;

(5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handsets, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

(6) Others, etc.

Figure 16 provides a schematic structural diagram of a terminal device. The terminal device can be applied to the scenario shown in FIG. 1 or FIG. 2. For ease of description, FIG. 16 only shows the main components of the terminal device. As shown in FIG. 16, the terminal device 1600 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the entire terminal, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the terminal device is turned on, the processor can read the software program in the storage unit, parse and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit processes the baseband signal to obtain a radio frequency signal and sends the radio frequency signal out in the form of electromagnetic waves through the antenna. . When data is sent to the terminal equipment, the radio frequency circuit receives the radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and performs processing on the data. deal with.

For ease of description, FIG. 16 only shows a memory and a processor. In actual terminal devices, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present invention.

As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data. The central processing unit is mainly used to control the entire terminal device and execute Software program, processing the data of the software program. The processor in FIG. 16 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors and are interconnected by technologies such as buses. Those skilled in the art can understand that the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In an example, the antenna and control circuit with the transceiving function can be regarded as the transceiving unit 1611 of the terminal device 1600, and the processor with the processing function can be regarded as the processing unit 1612 of the terminal device 1600. As shown in FIG. 16, the terminal device 1600 includes a transceiver unit 1611 and a processing unit 1612. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 1611 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1611 as the sending unit, that is, the transceiver unit 1611 includes a receiving unit and a sending unit. Exemplarily, the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc. Optionally, the foregoing receiving unit and sending unit may be an integrated unit or multiple independent units. The above-mentioned receiving unit and sending unit may be in one geographic location, or may be scattered in multiple geographic locations.

As shown in FIG. 17, another embodiment of the present application provides an apparatus 1700. The device can be a terminal or a component of the terminal (for example, an integrated circuit, a chip, etc.). The device may also be a network device, or a component of a network device (for example, an integrated circuit, a chip, etc.). The device may also be another communication module, which is used to implement the method in the method embodiment of the present application. The apparatus 1700 may include: a processing module 1702 (processing unit). Optionally, it may also include a transceiver module 1701 (transceiver unit) and a storage module 1703 (storage unit).

In a possible design, one or more modules as shown in Figure 17 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors It can be implemented with a transceiver; or implemented by one or more processors, memories, and transceivers, which is not limited in the embodiment of the present application. The processor, memory, and transceiver can be set separately or integrated.

The device has the function of realizing the terminal device described in the embodiment of this application. For example, the device includes a terminal device to execute the module or unit or means corresponding to the step related to the terminal device described in the embodiment of this application. The function Or a unit or means (means) can be implemented by software, or by hardware, or by hardware executing corresponding software, or by a combination of software and hardware. For details, please refer to the corresponding description in the foregoing corresponding method embodiment.

Or the device has the function of implementing the network device described in the embodiment of this application. For example, the device includes the module or unit or means corresponding to the network device executing the steps involved in the network device described in the embodiment of this application, The functions or units or means (means) can be realized by software, or by hardware, or by hardware executing corresponding software, or by a combination of software and hardware. For details, please refer to the corresponding description in the foregoing corresponding method embodiment.

Optionally, each module in the apparatus 1700 in the embodiment of the present application may be used to execute the method described in FIG. 5 in the embodiment of the present application.

In a possible implementation manner, an apparatus 1700 may include a processing module 1702 and a transceiver module 1701. The transceiver module 1701 is configured to receive first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, and the first identifier corresponds to the first bandwidth of the second cell Part of the BWP association. The processing module 1702 is configured to switch the activated BWP of the second cell to the first BWP of the second cell according to the first identifier.

In some possible implementation manners of the foregoing apparatus 1700, the first identifier is also associated with the first BWP of the third cell. The processing module 1702 is further configured to, according to the first identifier, the control device 1700 switch the activated BWP of the third cell to the first BWP of the third cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead.

In some possible implementation manners of the foregoing apparatus 1700, the first identifier is also associated with the first BWP of the first cell. The processing module 1702 is further configured to, according to the first identifier, the control device 1700 switch the activated BWP of the first cell to the first BWP of the first cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead. Optionally, the transceiver module 1701 is configured to receive second indication information on the first cell, where the second indication information includes the identifier of the first BWP of the first cell, and the processing module 1702 is configured to 2. Indication information. The control device 1700 updates the identification of the activated BWP of the first cell from the first identification to the identification of the first BWP of the first cell, and maintains the identification of the first BWP of the first cell The status is active. With this optional implementation manner, it is possible to realize the switching of the identification of the activated BWP without changing the activated BWP.

In some possible implementation manners of the foregoing apparatus 1700, before switching the activated BWP of the second cell to the first BWP of the second cell, the activated BWP of the second cell is associated with a second identity. Optionally, the second identifier is also associated with the activated BWP of the fourth cell.

In some possible implementations of the foregoing apparatus 1700, the transceiver module 1701 is further configured to receive configuration information, where the configuration information is used to configure the first identifier. Optionally, the configuration information is used to configure the association relationship between the first identifier and the first BWP of the second cell.

In a possible design, an apparatus 1700 may include a transceiver module 1701 and a processing module 1702. The transceiver module 1701 is configured to send first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, and the first identifier is related to the first bandwidth of the second cell Part of the BWP association. The processing module 1702 is configured to control the apparatus 1700 to communicate with the terminal device on the first BWP of the second cell.

In some possible implementation manners of the foregoing apparatus 1700, the first identifier is also associated with the first BWP of the third cell. The processing module 1702 is configured to control the apparatus 1700 to communicate with the terminal device on the first BWP of the third cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead.

In some possible implementation manners of the foregoing apparatus 1700, the first identifier is also associated with the first BWP of the first cell. The processing module 1702 is configured to control the apparatus 1700 to communicate with the terminal device on the first BWP of the first cell. According to this embodiment, BWP can be activated on multiple cells at the same time to change, so it can improve transmission efficiency and save signaling overhead. Optionally, the transceiver module 1701 is configured to send second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell.

In some possible implementation manners of the foregoing apparatus 1700, the transceiver module 1701 is further configured to send configuration information, and the configuration information is used to configure the first identifier. Optionally, the configuration information is used to configure the association relationship between the first identifier and the first BWP of the second cell.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The aforementioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.

It can be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

The present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the function of any of the foregoing method embodiments is realized.

This application also provides a computer program product, which, when executed by a computer, realizes the functions of any of the foregoing method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.

It should be understood that the “embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that, in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application. The implementation process constitutes any limitation.

It should also be understood that in this application, "when", "if" and "if" all mean that the UE or the base station will make corresponding processing under certain objective circumstances, and it is not a time limit, and the UE is not required Or when the base station is implemented, there must be a judgment action, which does not mean that there are other restrictions.

The use of the singular element in this application is intended to mean "one or more", rather than "one and only one", unless otherwise specified. The "plurality" mentioned in this application is intended to mean "two or more".

In addition, the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations.

The term "at least one of" or "at least one of" herein means all or any combination of the listed items, for example, "at least one of A, B, and C", It can be expressed that: A alone exists, B alone exists, C exists alone, A and B exist at the same time, B and C exist at the same time, and there are six situations of A, B and C at the same time.

It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and/or other information.

The corresponding relationships shown in the tables in this application can be configured or pre-defined. The value of the information in each table is only an example and can be configured to other values, which is not limited in this application. When configuring the correspondence between the information and the parameters, it is not necessarily required to configure all the correspondences indicated in the tables. For example, in the table in this application, the corresponding relationship shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, and so on. The names of the parameters shown in the titles in the above tables may also be other names that can be understood by the communication device, and the values or expressions of the parameters may also be other values or expressions that can be understood by the communication device. When the above tables are implemented, other data structures can also be used, such as arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables. Wait.

The pre-definition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, curing, or pre-fired.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A communication method, characterized in that it comprises:

Receiving first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, and the first identifier is associated with the first bandwidth part BWP of the second cell;

According to the first identifier, the activated BWP of the second cell is switched to the first BWP of the second cell.
The method of claim 1, wherein the first identifier is further associated with the first BWP of the third cell;

And, the method further includes:

According to the first identifier, the activated BWP of the third cell is switched to the first BWP of the third cell.
The method according to claim 1 or 2, wherein the first identifier is also associated with the first BWP of the first cell;

And, the method further includes:

According to the first identifier, the activated BWP of the first cell is switched to the first BWP of the first cell.
The method according to any one of claims 1 to 3, wherein before switching the activated BWP of the second cell to the first BWP of the second cell, the activated BWP of the second cell Associated with the second identification.
The method according to claim 4, wherein the second identifier is further associated with the activated BWP of the fourth cell.
The method of claim 3, wherein the method further comprises:

Receiving second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell;

According to the second indication information, the identification of the activated BWP of the first cell is updated from the first identification to the identification of the first BWP of the first cell, and the first BWP of the first cell is maintained The status is active.
The method according to any one of claims 1 to 6, characterized in that the method further comprises:

Receiving configuration information, where the configuration information is used to configure the first identifier.
The method according to claim 7, wherein the configuration information is further used to configure the association relationship between the first identifier and the first BWP of the second cell.
A communication method, characterized in that it comprises:

Sending first indication information on the first cell, where the first indication information includes a first identifier configured in the first cell, and the first identifier is associated with the first bandwidth part BWP of the second cell;

Communicate with the terminal device on the first BWP of the second cell.
The method according to claim 9, wherein the first identifier is also associated with the first BWP of the third cell;

And, the method further includes:

Communicate with the terminal device on the first BWP of the third cell.
The method according to claim 9 or 10, wherein the first identifier is also associated with the first BWP of the first cell;

And, the method further includes:

Communicate with the terminal device on the first BWP of the first cell.
The method of claim 11, wherein the method further comprises:

Sending second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell.
The method according to any one of claims 9 to 12, wherein the method further comprises:

Sending configuration information, where the configuration information is used to configure the first identifier.
The method according to claim 13, wherein the configuration information is further used to configure the association relationship between the first identifier and the first BWP of the second cell.
A communication device, characterized by comprising:

A transceiver module, configured to receive first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, the first identifier and the first bandwidth of the second cell Part of BWP association;

The processing module is configured to control the device to switch the activated BWP of the second cell to the first BWP of the second cell according to the first identifier.
The apparatus according to claim 15, wherein the first identifier is also associated with the first BWP of the third cell;

And, the processing module is also used for:

According to the first identifier, control the device to switch the activated BWP of the third cell to the first BWP of the third cell.
The apparatus according to claim 15 or 16, wherein the first identifier is further associated with the first BWP of the first cell;

And, the processing module is also used for:

According to the first identifier, control the apparatus to switch the activated BWP of the first cell to the first BWP of the first cell.
The apparatus according to any one of claims 14 to 17, before the activated BWP of the second cell is switched to the first BWP of the second cell, the activated BWP of the second cell and the second identifier Associated.
The apparatus of claim 18, wherein the second identifier is further associated with the activated BWP of the fourth cell.
17. The device of claim 17, wherein the transceiver module is further configured to:

Receiving second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell;

The processing module is further configured to, according to the second instruction information, control the device to update the identification of the activated BWP of the first cell from the first identification to the identification of the first BWP of the first cell , And maintain the state of the first BWP of the first cell as the active state.
The device according to any one of claims 15 to 20, wherein the transceiver module is further configured to:

Receiving configuration information, where the configuration information is used to configure the first identifier.
The apparatus according to claim 21, wherein the configuration information is further used to configure the association relationship between the first identifier and the first BWP of the second cell.
A communication device, characterized by comprising:

A transceiver module, configured to send first indication information on a first cell, where the first indication information includes a first identifier configured in the first cell, and the first identifier is the same as the first bandwidth of the second cell Part of BWP association;

The processing module is configured to control the device to communicate with the terminal device on the first BWP of the second cell.
The apparatus of claim 23, wherein the first identifier is further associated with the first BWP of the third cell;

And, the processing module is also used for:

On the first BWP of the third cell, control the apparatus to communicate with the terminal device.
The apparatus according to claim 23 or 24, wherein the first identifier is further associated with the first BWP of the first cell;

And, the processing module is also used for:

On the first BWP of the first cell, control the apparatus to communicate with the terminal device.
The device of claim 25, wherein the transceiver module is further configured to:

Sending second indication information on the first cell, where the second indication information includes an identifier of the first BWP of the first cell.
The device according to any one of claims 23 to 26, wherein the transceiver module is further configured to:

Sending configuration information, where the configuration information is used to configure the first identifier.
The apparatus according to claim 27, wherein the configuration information is further used to configure the association relationship between the first identifier and the first BWP of the second cell.
A communication device, characterized in that the device is used to execute the method according to any one of claims 1 to 8.
A communication device, characterized in that the device is used to execute the method according to any one of claims 9 to 14.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, when the program or instruction is executed by the processor, the device Perform the method according to any one of claims 1 to 8.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, when the program or instruction is executed by the processor, the device Perform the method according to any one of claims 9 to 14.
A computer-readable medium having a computer program or instruction stored thereon, wherein the computer program or instruction when executed causes a computer to execute the method according to any one of claims 1 to 8.
A computer readable medium having a computer program or instruction stored thereon, wherein the computer program or instruction is executed to cause a computer to execute the method according to any one of claims 9 to 14.
A communication system, comprising: the device according to claim 29, and/or the device according to claim 30; or, the device according to any one of claims 15 to 22, and/or , The device according to any one of claims 23 to 28.