CN117880859A

CN117880859A - Waveform switching method, waveform switching equipment, waveform switching medium, chip system and chip product

Info

Publication number: CN117880859A
Application number: CN202410277973.3A
Authority: CN
Inventors: 陈哲
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2024-03-12
Filing date: 2024-03-12
Publication date: 2024-04-12

Abstract

The embodiment of the application provides a waveform switching method, waveform switching equipment, waveform switching media, a waveform switching chip system and a waveform switching product, and relates to the technical field of communication. The method comprises the following steps: the terminal device sends a waveform switching request to the network device, the waveform switching request being used to instruct the network device to update waveform configuration information of an uplink UL waveform of a cell or a cell group of the terminal device. The network equipment sends the updated waveform configuration information so that the terminal equipment receives the updated waveform configuration information and further updates the UL waveform of the cell or the cell group according to the updated waveform configuration information. In this way, the terminal device actively initiates the switching of the UL waveform, so that the network device timely switches the appropriate waveform for the UL, the change of the UL waveform is more adaptive to the self switching requirement of the terminal device, and the efficiency of waveform switching is improved.

Description

Waveform switching method, waveform switching equipment, waveform switching medium, chip system and chip product

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a medium, a chip system, and a product for waveform switching.

Background

In a communication system, a path through which a User Equipment (UE) transmits data or messages to a network device may be referred to as an Uplink (UL). The uplink may support two waveforms, a cyclic prefix orthogonal frequency division multiplexing (Cyclic Prefix Orthogonal Frequency Division Multiplexing, CP-OFDM) waveform and a discrete fourier transform spread orthogonal frequency division multiplexing (Direct Fourier Transformer Spread Orthogonal Frequency Division Multiplexing, DFT-S-OFDM) waveform, respectively. The user equipment may switch between the CP-OFDM and DFT-S-OFDM waveforms when transmitting data to the network equipment over the uplink.

One waveform switching method known at present is that the network device selects what UL waveform to use for the UE, and notifies the UE of the selected UL waveform through signaling or configuration information. However, the above waveform switching method may cause mismatching between the UL waveform of the terminal device and the actual transmission requirement, and reduce the communication quality.

Disclosure of Invention

The embodiment of the application provides a waveform switching method, waveform switching equipment, waveform switching media, a waveform switching chip system and a waveform switching product, and is applied to the technical field of communication. The terminal equipment actively initiates the switching of the UL waveform, so that the network equipment timely switches proper waveforms for the UL, the change of the UL waveform is more adaptive to the self switching requirement of the terminal equipment, the efficiency of waveform switching is improved, and the phenomenon of communication quality reduction caused by the use of improper UL waveforms is avoided.

In a first aspect, an embodiment of the present application provides a waveform switching method. The method may be performed by the terminal device or may be performed by a component (e.g., a chip or a circuit) configured in the terminal device. The present application is not limited in this regard.

For example, the method includes: transmitting a waveform switching request, wherein the waveform switching request is used for indicating the network equipment to update the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment; receiving updated waveform configuration information; and updating the UL waveform of the cell or the cell group according to the updated waveform configuration information.

Alternatively, the waveform switching request may essentially carry indication information, which may be used to instruct the network device to perform UL waveform switching of the terminal device.

To clarify the need for waveform switching, the indication information may explicitly instruct the network device to update the waveform configuration information of the UL waveform of the cell or group of cells of the terminal device. For example, indicated by some predefined field in the waveform switch request. In this case, the indication information may be some predefined field in the waveform switching request.

In order for the network device to trigger the waveform switching in time, the waveform switching request may contain parameters required for the terminal device to select the UL waveform. For example, parameters such as RSRP or SRS measurement measured by the terminal device are included. The network device selects an appropriate target UL waveform for the terminal device based on the parameters described above.

Alternatively, the updated waveform configuration information may be configuration information of the updated UL waveform. The updated UL waveform may be referred to as a target UL waveform, that is, the updated UL waveform may be a CP-OFDM waveform or a DFT-S-OFDM waveform. The waveform configuration information may refer to configuration information of a target UL waveform.

It is understood that a cell may refer to a cell serving a communication of a terminal device. A cell group may refer to a combination of cells serving the communication of a terminal device. A cell may include one or more. A cell group may include one or more cells.

The terminal equipment directly sends the waveform switching request to the network equipment, so that the network equipment can trigger the switching of the UL waveform under the request of the terminal equipment. The terminal equipment initiates the switching of the UL waveform, so that the network equipment timely switches proper waveforms for the UL, the change of the UL waveform is more adaptive to the self switching requirement of the terminal equipment, and the waveform switching efficiency is improved.

The terminal device may trigger a handover of the UL waveform. Thus, in one possible implementation, sending a waveform switching request may include: and sending a waveform switching request in response to the first preset condition being met.

Here, the first preset condition may refer to a condition for triggering or starting UL waveform switching preconfigured in the terminal device. The terminal device may correspond to at least one cell and/or at least one cell group. The terminal device may determine whether the UL waveform of each cell or cell group satisfies a first preset condition.

And the terminal device satisfying the first preset condition may include that the transmission power of the terminal device itself is not adapted to the transmission power of the configured UL waveform. And if the transmission power of the terminal equipment is not matched with the transmission demand power of the configured UL waveform, transmitting a waveform switching request to the network equipment. To avoid communication interruption caused by failure of the terminal equipment to send the information carried by the UL waveform.

In one possible configuration, the transmit power of the terminal can be determined by at least one of the following parameters: parameters such as the operating state of the PA of the UE, the capability of the UE, the signal processing capability of the UL, the actual transmit power of the UE, etc. Based on the above parameters, possible embodiments of the terminal device satisfying the first preset condition will be described in detail below.

That is, satisfying the first preset condition may include at least one of:

the working state of the radio frequency front end chip power amplifier PA of the terminal equipment meets a first preset state;

the signal transmission capability of the terminal equipment meets a first preset capability;

the signal processing capability of the terminal device satisfies the second preset capability.

Wherein the video front-end chip may include one or more PAs. The working state of the PA of the radio frequency front end chip of the terminal device meeting the first preset state may mean that the working state of one PA of the radio frequency chip of the terminal device meeting the first preset state. That is, the terminal device can distinguish different PAs for the case of multiple PAs and manage UL waveforms corresponding to the respective PAs separately.

The first preset capability may refer to a capability threshold preset for a signal transmission capability of the terminal device. Taking the signal transmission capability as an actual transmission power as an example, the first preset capability may be a set power threshold. The signal transmission capability of the terminal device satisfying the first preset capability may include: the actual transmit power of the terminal device is greater than the power threshold.

The second preset capability may refer to a signal processing capability preset to meet a normal signal transmission requirement. For example, the second preset capability may be PARR reduction capability.

Alternatively, the waveform switching request may be sent by the terminal device to the network device. And transmission of the waveform switch request requires communication resources. Thus, in one possible implementation, any one of the following is also included:

the waveform switching request is carried on the uplink control information;

the waveform switching request is carried in a first Radio Resource Control (RRC) message;

the waveform switching request is carried on the first medium access control-control element MAC-CE message.

That is, the terminal device may transmit uplink control information to the network device, and a part of fields in the uplink control information may be set as the waveform switching request. The terminal device may transmit a first RRC message to the network device. A certain predefined field in the first RRC message carries the waveform switching request. The terminal device may transmit a first MAC CE message to the network device. A certain predefined field in the first MAC CE message carries a waveform switch request.

By using any one of the uplink control information, the RRC message and the MAC-CE message to transmit the waveform switching request to the network equipment, the transmission process of the waveform switching request can be enabled to be locally higher in reliability, the transmission efficiency of the waveform switching request is improved, and the transmission delay is reduced.

It should be appreciated that the waveform switching request may be transmitted to the network device by a message or signaling. Whereas the transmission of messages or signalling requires channels or communication resources. Thus, the method further comprises:

and receiving resource configuration information, wherein the resource configuration information is used for indicating to configure a Physical Uplink Control Channel (PUCCH) for the terminal equipment, and the uplink control information is transmitted through the PUCCH under the condition that the waveform switching request is carried on the uplink control information.

Alternatively, the resource configuration information may be used to indicate a PUCCH configured for the terminal device. In particular, the resource configuration information may be carried in downlink control information (Downlink Control Information, DCI) or a third RRC message or a third MAC CE message.

Alternatively, the resource configuration information may include information such as a resource indicator (Preamble Resource Indicator, PRI) of the PUCCH or a PUCCH resource index, whereby the corresponding PUCCH resource is determined by the resource indicator (PRI) of the PUCCH or the PUCCH resource index, or the like.

Optionally, in the case that the waveform switching request is carried in the first RRC message or the first MAC-CE message, the updated waveform configuration information is carried in the second RRC message or the second MAC-CE message.

Alternatively, the RRC message or MAC-CE message may explicitly carry the waveform switching request or implicitly carry the waveform switching request.

Therefore, by configuring PUCCH resources for the terminal equipment, the information of the terminal equipment can be quickly and professionally transmitted, and the information transmission efficiency is improved.

In addition, the waveform switching request and the waveform configuration information may be transmitted through RRC messages and MAC-CE messages.

In one possible implementation, the waveform switching request includes a first identification of a first cell or a first group of cells to perform UL waveform switching; the first identity is used to instruct the network device to update waveform configuration information of UL waveforms of the first cell or the first cell group.

Updating the UL waveform of the cell or the cell group according to the updated waveform configuration information, including: and updating the UL waveform of the first cell or the first cell group according to the updated waveform configuration information.

It should be appreciated that the first identity may be used to indicate that a UL waveform switch occurs for a first cell or a cell within a first cell group. The first identification may, for example, indicate that UL waveform switching of a cell or group of cells is performed, and the second identification may, for example, indicate that UL waveform switching of a cell or group of cells is not performed.

Therefore, the network equipment prompts waveform switching to the first cell or the first cell group through the first identifier, achieves targeted UL waveform switching, timely completes UL waveform switching for the first cell or the first cell group, avoids communication failure phenomenon caused by the fact that UL waveform used by the first cell or the first cell group is not matched with transmitting power of the UL waveform, timely solves communication problems, and improves user experience.

In yet another possible implementation, the waveform switching request further includes a second identification of a second cell or a second group of cells that are not required to perform UL waveform switching; the second identification is used to indicate that the network device does not update the waveform configuration information of the UL waveform of the second cell or second cell group.

It should be appreciated that the second identity may indicate that the second cell or cells within the second cell group do not perform UL waveform switching. The network device determines whether the corresponding second cell or second cell group performs UL waveform switching by reading the second identity.

Therefore, the network equipment prompts the second cell or the second cell group to not execute waveform switching through the second identifier, realizes targeted prompt of non-UL waveform switching, and avoids the waste of communication resources caused by performing UL waveform switching on the second cell or the second cell group which does not need to execute UL waveform switching.

After the terminal device sends the waveform switching request, it is necessary to wait for receiving the waveform configuration information. In order to make the use of the terminal device unaffected, the reception time of the waveform configuration information may be constrained. Thus, in one possible implementation, the method further comprises:

starting a timer; and if the updated waveform configuration information is not received within the effective duration of the timer, sending a waveform switching request to the network equipment again.

And the timer is used for detecting the overtime of the reception of the waveform configuration information, so that the terminal equipment limits the reception time of the waveform configuration information, the phenomenon of UL waveform switching failure caused by long waiting time for receiving the waveform configuration information is avoided, and the success rate of UL waveform switching is improved.

In a second aspect, embodiments of the present application provide a cell handover method, which may be performed by a network device, or may also be performed by a component (e.g., a chip or a circuit) configured in the network device. The present application is not limited in this regard.

For example, the method includes: receiving a waveform switching request, wherein the waveform switching request is used for indicating the network equipment to update the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment; updating configuration information of Uplink (UL) waveforms of cells or cell groups of terminal equipment according to the waveform switching request; and transmitting updated waveform configuration information, wherein the waveform configuration information is used for updating the UL waveform of the cell or the cell group of the terminal equipment.

In one possible implementation, the method further includes:

and sending resource configuration information, wherein the resource configuration information is used for indicating to configure a Physical Uplink Control Channel (PUCCH) for the terminal equipment, and the uplink control information is transmitted through the PUCCH under the condition that the waveform switching request is carried on the uplink control information.

In one possible implementation, in the case that the waveform switching request is carried in a first RRC message or a first MAC-CE message, the updated waveform configuration information is carried in a second RRC message or a second MAC-CE message.

In one possible implementation, the waveform switching request includes a first identification of a first cell or a first group of cells to perform UL waveform switching; the method further comprises the steps of:

and updating the waveform configuration information of the UL waveform of the first cell or the first cell group according to the waveform switching request, wherein the updated waveform configuration information is used for indicating the terminal equipment to update the UL waveform of the first cell or the first cell group.

Optionally, the waveform switching request further includes a second identification of a second cell or a second cell group that is not required to perform UL waveform switching; the method further comprises the steps of:

according to the waveform switching request, it is determined that the UL waveform of the second cell or the second cell group does not perform configuration update.

In a third aspect, a communication apparatus is provided comprising respective modules or units for performing the method of the first aspect and any one of the possible implementations of the first aspect.

In a fourth aspect, there is provided a communications apparatus comprising means or units for performing the method of the second aspect and any one of the possible implementations of the second aspect.

In a fifth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of the first aspect and any one of the possible implementations of the first aspect. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication device is a terminal device. When the processing means of the candidate cell configuration information is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the terminal device. When the processing means of the candidate cell configuration information is a chip configured in the terminal device, the communication interface may be an input/output interface.

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

In a sixth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of the second aspect and any one of the possible implementations of the second aspect. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication apparatus is a network device. When the communication means is a network device, the communication interface may be a transceiver, or an input/output interface.

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

In a seventh aspect, there is provided a processor comprising: input circuit, output circuit and processing circuit. The processing circuitry is to receive signals through the input circuitry and to transmit signals through the output circuitry such that the processor performs the first or second aspect and the method in any one of the possible implementations of the first or second aspect.

In a specific implementation process, the processor may be one or more chips, 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, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the output signal may be output by, for example and without limitation, a transmitter and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit, which functions as the input circuit and the output circuit, respectively, at different times. The embodiments of the present application do not limit the specific implementation manner of the processor and the various circuits.

In an eighth aspect, a processing device is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory and is configured to receive a signal via the receiver and to transmit a signal via the transmitter to perform the method of the first or second aspect and any one of the possible implementations of the first or second aspect.

Optionally, the processor is one or more and the memory is one or more.

Alternatively, the memory may be integrated with the processor or the memory may be separate from the processor.

In a specific implementation process, the memory may be a non-transient (non-transitory) memory, for example, a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It should be appreciated that the related data interaction process, for example, transmitting the indication information, may be a process of outputting the indication information from the processor, and the receiving the capability information may be a process of receiving the input capability information by the processor. Specifically, the data output by the processor may be output to the transmitter, and the input data received by the processor may be from the receiver. Wherein the transmitter and receiver may be collectively referred to as a transceiver.

The processing means in the eighth aspect described above may be one or more chips. The processor in the processing device may be implemented by hardware or may be implemented by software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.

In a ninth aspect, an embodiment of the present application provides a terminal device, including a processor, a memory, and a transceiver, where the transceiver is configured to receive and transmit data, the memory is configured to store code instructions, the processor is configured to execute the code instructions, and the processor is configured to instruct the terminal device to perform the method described in any one of the foregoing first aspect and any possible implementation manner of the first aspect when the code instructions stored in the memory are executed.

In a tenth aspect, an embodiment of the present application provides a network device, including a processor, a memory, and a transceiver, where the transceiver is configured to receive and transmit data, the memory is configured to store code instructions, the processor is configured to execute the code instructions, and the processor is configured to instruct, when executing the code instructions stored in the memory, the terminal device to perform the method described in any one of the second aspect and the possible implementation manners of the second aspect.

In an eleventh aspect, embodiments of the present application provide a computer-readable storage medium, in which a computer program or instructions are stored which, when run on a computer, cause the computer to perform the method described in the first or second aspect and any one of the possible implementations of the first or second aspect.

In a twelfth aspect, the present application provides a chip or chip system comprising at least one processor and a communication interface, the communication interface and the at least one processor being interconnected by wires, the at least one processor being adapted to execute a computer program or instructions to perform the method of the first aspect or the second aspect and any one of the possible implementations of the first aspect or the second aspect. The communication interface in the chip can be an input/output interface, a pin, a circuit or the like.

In a thirteenth aspect, embodiments of the present application provide a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first or second aspect and any one of the possible implementations of the first or second aspect.

In one possible implementation, the chip or chip system described above in the present application further includes at least one memory, where the at least one memory has instructions stored therein. The memory may be a memory unit within the chip, such as a register, a cache, etc., or may be a memory unit of the chip (e.g., a read-only memory, a random access memory, etc.).

It should be understood that the third aspect, the fifth aspect, and the ninth aspect of the present application correspond to the technical solutions of the first aspect of the present application, the fourth aspect, the sixth aspect, and the tenth aspect of the present application correspond to the technical solutions of the second aspect of the present application, and the seventh aspect, the eighth aspect, the eleventh aspect, and the thirteenth aspect of the present application correspond to the technical solutions of the first aspect or the second aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding possible embodiments are similar and are not repeated.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system applied in an embodiment of the present application;

fig. 2 is a signaling interaction diagram of a waveform switching method provided in an embodiment of the present application from a device interaction point of view;

fig. 3 is a signaling interaction diagram of yet another waveform switching method provided in an embodiment of the present application, from a device interaction point of view;

Fig. 4 is a signaling interaction diagram of yet another waveform switching method provided in an embodiment of the present application, from a device interaction point of view;

fig. 5 is a signaling interaction diagram of yet another waveform switching method provided in an embodiment of the present application, from a device interaction point of view;

fig. 6 is a flowchart of a waveform switching method according to an embodiment of the present application;

fig. 7 is a schematic block diagram of a communication device provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of one possible configuration of a terminal device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a possible structure of a network device provided in an embodiment of the present application, for example, may be a schematic diagram of a base station.

Detailed Description

In order to facilitate the clear description of the technical solutions of the embodiments of the present application, the following simply describes some terms and techniques related to the embodiments of the present application:

1. uplink (UL) waveform: in a wireless communication or a wired communication system, a signal waveform formed by transmitting data from a User Equipment (UE) to a base station or a server is referred to. The UL waveform used by the user equipment may generally be configured by the network equipment. Specifically, the network device may send an RRC message to the user device, where the RRC message may carry configuration information of the UL waveform. The user equipment may configure configuration information of UL waveforms in the RRC message.

2. The cyclic prefix orthogonal frequency division multiplexing (Cyclic Prefix Orthogonal Frequency Division Multiplexing, CP-OFDM) waveform is one of UL waveforms, specifically a special orthogonal frequency division multiplexing (OFDM, orthogonal Frequency Division Multiplexing) waveform. The CP-OFDM waveform adds a Cyclic Prefix (Cyclic Prefix) before each OFDM symbol. The cyclic prefix is a copy of a portion of the data at the end of an OFDM symbol that is inserted into the beginning of the symbol, forming a cyclic structure. The CP-OFDM technology enables all sub-carriers to overlap each other by reasonably arranging the sub-carriers, and does not need to use a protection band to strictly divide the sub-carriers.

Among them, CP-OFDM can support Single-user-Multiple-Input Multiple-Output (SU-MIMO) transmission. SU-MIMO transmission means that only one terminal can communicate with the same channel at the same time, and serial transmission is still performed between multiple terminals. In SU-MIMO, both the base station and the user may have multiple antennas, but only one user can be served at a time.

3. Discrete fourier transform spread spectrum orthogonal frequency division multiplexing (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, DFT-S-OFDM) is a modulation and multiplexing technique used in a wireless communication system or a wired communication system, combining the features of discrete fourier transform spread (DFT-S) and Orthogonal Frequency Division Multiplexing (OFDM).

Wherein, DFT-S-OFDM supports Rank 1 transmission but has stronger coverage capability. Rank 1 transmission is a transmission mode in LTE (Long Term Evolution ), mainly used in the case of cell edges. In this mode, the system uses only one transmission layer for data transmission, which can simplify the signal processing process and improve the reliability of transmission to some extent.

4. And a physical uplink control channel (Physical Uplink Control Channel, PUCCH) is mainly used for transmitting uplink L1/L2 control information so as to support uplink and downlink data transmission (Uplink Control Information, UCI) and ensure the normal operation of the system.

5. Cell (cell): the cells are described by a higher layer from the point of view of resource management or mobility management or service units. The coverage area of each network device may be divided into one or more cells, each cell may correspond to one or more frequency points, or each cell may be considered as an area formed by the coverage area of one or more frequency points.

It should be noted that a cell may be an area where a coverage area of a wireless network of a network device is located. In the embodiments of the present application, different cells may correspond to the same or different network devices. For example, the network device to which the cell #1 belongs and the network device of the cell #2 may be different network devices, such as a base station. That is, cell 1# and cell #2 may be managed by different base stations. Alternatively, for another example, the network device managing the cell #1 and the network device managing the cell #2 may also be different radio frequency processing units 1101 of the same base station, for example, remote radio units (radio remote unit, RRU), that is, the cell #1 and the cell #2 may be managed by the same base station, in particular, the same baseband processing unit 1101 and intermediate frequency processing unit 1101, but have different video processing units 1101. Alternatively, for another example, the network device to which cell 1# belongs and the network device to which cell 2# belongs may be the same network device, such as a base station. That is, the cell 1# and the cell 2# may be managed by the same base station, and in this case, may be referred to as co-sited with the cell 1# and the cell 2# without being particularly limited thereto in this application.

As before, the gNB (the next Generation Node B, next generation base station) may include CUs and DUs, among other possible deployments. In such a deployment, cell 1# and cell 2# may be managed by the same CU and the same DU, i.e., co-CU and co-DU; cell 1# and cell 2# may be managed by the same CU and different DUs, i.e. co-CU but not co-DU; cell #1 and cell #2 may also be managed by different CUs and different DUs, i.e. not co-CU and not co-DU.

6. The radio resource control (Radio Resource Control, RRC) message is a signaling message for configuring, managing and controlling radio resources. RRC messages are used in wireless communication systems, particularly in cellular networks such as LTE and fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) New Radio, NR.

Wherein RRC messages may be transmitted between the UE and the base station for establishing, maintaining and releasing the radio connection. The RRC message may contain various information elements (Information Elements, IEs) containing various parameters and instructions for configuring and managing the radio resources. For example, the RRC connection setup request (RRC Connection Setup Request) message may contain capability information of the UE, security algorithm configuration, radio resource configuration, etc.

7. Other terms

In the embodiments of the present application, the words "first," "second," and the like are used to distinguish between identical or similar items that have substantially the same function and effect. For example, the first chip and the second chip are merely for distinguishing different chips, and the order of the different chips is not limited. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

The technical scheme of the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) telecommunications system, future fifth generation (5th Generation,5G) telecommunications system or new radio access technology (new radio Access Technology, NR), vehicle-to-other devices (Vehicle-to-X V X), where V2X may include Vehicle-to-internet (Vehicle to network, V2N), vehicle-to-Vehicle (V2V), vehicle-to-infrastructure (Vehicle to infrastructure, V2I), vehicle-to-pedestrian (Vehicle to pedestrian, V2P), etc., workshop communication long term evolution technology (Long Term Evolution-Vehicle, LTE-V), vehicle networking, machine-type communications (Machine type communication, MTC), internet of things (Internet of Things, ioT), inter-Machine communication long term evolution technology (Long Term Evolution-Machine, LTE-M), machine-to-Machine (Machine to Machine, M2M), etc.

To facilitate an understanding of the embodiments of the present application, a communication system suitable for use in the embodiments of the present application will be described in detail with reference to fig. 1. Fig. 1 shows a schematic diagram of a communication system suitable for use in the waveform switching method and communication apparatus of the embodiments of the present application. As shown in fig. 1, the communication system 100 may include a network device 110; the communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in fig. 1. Wherein the terminal device 120 may be mobile or stationary. The network device 110 may communicate with the terminal device 120 via a wireless link, such as a base station or a base station controller, etc. Each network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area (cell).

Fig. 1 illustrates two network devices and one terminal device, alternatively, the communication system 100 may include at least one network device and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present application.

Each of the above communication devices, such as the network device 110 or the terminal device 120 in fig. 1, may be configured with a plurality of antennas. The plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device may additionally include a transmitter chain and a receiver chain, as will be appreciated by those of ordinary skill in the art, each of which may include a plurality of components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.) associated with the transmission and reception of signals. Thus, communication between the network device and the terminal device may be via antenna technology.

Optionally, the wireless communication system 100 may further include a network controller, a mobility management entity, or other network entities such as a core network element, which the embodiments of the present application are not limited to.

In this embodiment of the present application, the network device may be any device having a wireless transceiver function. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (Radio Network Controller, RNC), a Node B (Node B, NB), a base station controller (Base Station Controller, BSC), a base transceiver station (Base Transceiver Station, BTS), a Home base station (Home evolved NodeB, or a Home Node B, HNB, for example), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (Wireless Fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission Point (transmission Point, TP), or a transmission receiving Point (transmission and reception Point, TRP), etc., may also be 5G, e.g., NR, a gNB (the next Generation Node B, a next generation base station) in a system, or a transmission Point (TRP or TP), one or a group of antenna panels (including a plurality of antenna panels) of a base station in a 5G system, or may also be a network Node constituting a gNB or a transmission Point, such as a disbursed Unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and DUs. The gNB may also include an active antenna unit (active antenna unit, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB, e.g. the CU is responsible for handling non-real time protocols and services, implementing radio resource control (radio resource control, RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer functions. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (media access control, MAC) and Physical (PHY) layers. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become information of the PHY layer or be converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

The network device provides services for the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources, or spectrum resources) allocated by the network device, where the cell may belong to a macro base station (e.g., macro eNB or macro gNB, etc.), or may belong to a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

In the embodiment of the present application, the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment.

Further, the terminal device may include a handheld device, an in-vehicle device, or the like having a communication function. For example, some terminal devices are: a mobile phone, tablet, palm, notebook, mobile internet device (mobile internet device, MID), wearable device, virtual Reality (VR) device, augmented reality (augmented reality, AR) device, wireless terminal in industrial control (industrial control), wireless terminal in unmanned (self driving), wireless terminal in teleoperation (remote medical surgery), wireless terminal in smart grid (smart grid), wireless terminal in transportation security (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, public computing device or other processing device connected to wireless modem, vehicle-mounted device, wearable device, terminal device in 5G network or evolving land mobile terminal (public land mobile network), and the like, without limiting the examples of this.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In addition, in the embodiment of the application, the terminal device may also be a terminal device in an internet of things (internet of things, ioT) system, and the IoT is an important component of future information technology development, and the main technical characteristic of the terminal device is that the article is connected with a network through a communication technology, so that an intelligent network for man-machine interconnection and internet of things interconnection is realized.

The terminal device in the embodiment of the present application may also be referred to as: a terminal device, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, a user equipment, or the like.

In the embodiment of the application, the terminal device or each network device includes a hardware layer, an operating system layer running above the hardware layer, and an application layer running above the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, instant messaging software and the like.

Referring to the communication system shown in fig. 1, it is assumed that terminal device 120 resides at network device 110. The terminal device 120 may report reference signal received power (Reference Signal Receiving Power, RSRP) or signal received strength (Sounding Reference Signal, SRS) measurements to the network device 110. Network device 110 may determine the target UL waveform to use by terminal device 120 based on RSRP or SRS measurements. Thereafter, the network device 110 may transmit indication information of the target UL waveform to the terminal device 120. The terminal device 120 may receive the indication information, which may indicate the terminal device to configure waveform configuration information of the target UL waveform.

As can be seen from the above description, the network device 120 can perform UL waveform switching according to RSRP or SRS measurement reported by the terminal device. However, because the network device cannot acquire the parameters such as the working state, the signal transmission capability, the signal processing capability and the like of the terminal device, the network device cannot acquire the actual transmission power of the UE in time, and the condition that the actual transmission power of the UE does not correspond to the UL waveform is triggering the UL waveform switching is not caused, the network device cannot determine when to switch the UL waveform of the UE, and the UL waveform of the terminal device is not matched with the actual transmission requirement, thereby reducing the communication quality.

Based on the above, the application provides a waveform switching method, so that the terminal device actively initiates a switching request of UL waveform, and sends the waveform switching request to the network device, where the waveform switching request can instruct the network device to update the waveform configuration information of the UL waveform of the terminal device in time. And the terminal equipment can update the UL waveform of the cell or the cell group in time by receiving the updated waveform configuration information. The switching of the UL waveform can be initiated by the terminal equipment, so that more efficient UL waveform updating is provided for the terminal equipment in time, communication barriers caused by unmatched UL waveforms are reduced, and user experience is improved.

In order to facilitate understanding of the embodiments of the present application, the following description is made before describing the embodiments of the present application.

First, in the embodiments of the present application, "for indicating" may include for direct indication and for indirect indication, and may also include explicit indication and implicit indication. In the specific implementation process, the manner of indicating the information to be indicated is various, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. The indication of the information to be indicated may also be achieved by means of a pre-agreement (e.g. protocol specification) whether a certain cell is present, for example, thereby reducing the indication overhead to some extent.

Second, "predefined" or "preconfiguration" may be implemented by pre-storing corresponding codes, tables, or other manners in devices (e.g., including terminal devices and network devices) that may be used to indicate relevant information, and the specific implementation of the present application is not limited. Where "save" may refer to saving in one or more memories. The one or more memories may be provided separately or may be integrated in an encoder or decoder, processor, or communication device. The one or more memories may also be provided separately as part of the decoder, processor, or communication device as part of the integrated circuit. The type of memory may be any form of storage medium, and this application is not limited in this regard.

Third, in the embodiments of the present application, the descriptions of "when … …", "in the case of … …", "if" and the like all refer to that the device (e.g., the terminal device or the network device) will make a corresponding process under some objective condition, and are not limited in time, nor do the devices (e.g., the terminal device or the network device) require an action of determining when implemented, nor do other limitations mean that there are any other limitations.

Fourth, various embodiments are described in detail below in connection with various flowcharts, but it should be understood that these flowcharts and the associated descriptions of their respective embodiments are merely examples for ease of understanding and should not be construed as limiting the present application in any way. Each step in the flowcharts is not necessarily performed, and some steps may be skipped, for example. Moreover, the order of execution of the steps is not fixed nor limited to that shown in the drawings, and should be determined by its functions and inherent logic.

The method provided by the embodiment of the application is described in detail below with reference to the accompanying drawings.

It should be understood that the following details of the method provided in the embodiments of the present application are given only for easy understanding and explanation, taking the interaction between the terminal device and the network device as an example. This should not be construed as limiting the subject matter of the methods provided herein. For example, the terminal device shown in the following embodiments may be replaced with a component (such as a chip or a circuit) or the like configured in the terminal device. The network device shown in the following embodiments may also be replaced with a component (such as a chip or a circuit) or the like configured in the network device.

The embodiments shown below are not particularly limited to the specific structure of the execution body of the method provided in the embodiments of the present application, as long as the communication can be performed by the method provided in the embodiments of the present application by running the program recorded with the code of the method provided in the embodiments of the present application, and for example, the execution body of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call the program and execute the program.

Fig. 2 is a signaling interaction diagram of a waveform switching method according to an embodiment of the present application. As shown in fig. 2, the waveform switching method provided for this embodiment may include:

s201, the terminal equipment sends a waveform switching request. Accordingly, the network device may receive the waveform switching request sent by the terminal device.

Wherein the waveform switching request is used to instruct the network device to update waveform configuration information of an uplink UL waveform of a cell or a group of cells of the terminal device.

It should be appreciated that sending a waveform switch request may also be described as indicating a waveform switch request or transmitting a waveform switch request. The waveform switching request may also be described as waveform switching information, switching instruction information, waveform switching message, waveform change request, waveform change information, waveform change message, or the like.

It should be noted that the foregoing is merely illustrative of different description modes of the waveform switching request, and is not limited in particular, and any information or message having the meaning of triggering waveform switching may belong to the protection scope of the present disclosure.

Optionally, the terminal device sending the waveform switching request may include: the terminal equipment sends a waveform switching request to the network equipment, or the terminal equipment sends the waveform switching request to the original cell. The original cell may also be referred to as a source cell. An original cell may refer to an area covered by a portion of a sector antenna of a network device in a communication system within which a mobile may communicate with the network device.

As before, the waveform switching request may essentially carry indication information that may be used to instruct the network device to perform UL waveform switching of the terminal device.

In one possible design, the indication information may explicitly instruct the network device to update waveform configuration information of UL waveforms of cells or groups of cells of the terminal device. For example, indicated by some predefined field in the waveform switch request. In this case, the indication information may be some predefined field in the waveform switching request.

Illustratively, the predefined field may be defined as a first identification. The network device reads or parses the first identity from the waveform switching request, and whether to instruct to perform UL waveform switching of the cell or cell group of the terminal device.

Further, assuming that the first identity is the first identity, it may be indicated to perform an UL waveform switch updating the cell or group of cells of the terminal device. The first identity is the second identity, the UL waveform handover of the cell or group of cells of the terminal device may be indicated not to be updated. The first identification may be, for example, 1 and the second identification may be, for example, 0. Or the first identification may be, for example, 0 and the second identification may be, for example, 1. Of course, the first identifiers listed above are merely exemplary and should not be construed as limiting in any way.

In yet another possible design, the indication information may also implicitly instruct the network device to update the waveform configuration information of the UL waveform of the cell or group of cells of the terminal device. For example, the waveform switching request may include configuration information of the configured UL waveform. When the network device receives the waveform switching request, it may determine to initiate updating of the UL waveform according to the configuration information of the UL waveform that it contains.

It should be understood that the above-listed specific manner of instructing the network device to update the waveform configuration information of the uplink UL waveform of the cell or group of cells of the terminal device is merely an example, and should not be construed as limiting in any way, the present application is not limited to the specific manner in which the terminal device instructs the network device to update the waveform configuration information of the UL waveform of the cell or group of cells.

The waveform switching request may contain parameters required to select the UL waveform for the terminal device. For example, parameters such as RSRP or SRS measurement measured by the terminal device are included. The network device selects an appropriate target UL waveform for the terminal device based on the parameters described above.

Illustratively, the network device may determine the target UL waveform based on parameters such as RSRP or SRS measurements. Specifically, a target UL waveform adapted to parameters such as RSRP or SRS measurement may be determined from a CP-OFDM waveform and a DFT-S-OFDM waveform.

It should be appreciated that the UL waveform that the terminal device uses before sending the waveform switching request may be referred to as an initial UL waveform. The UL waveform after the network device updates for the terminal device may be referred to as a target UL waveform. Of course, the names of UL waveforms before and after update are merely exemplary and not limiting in particular.

And S202, the network equipment updates the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment according to the waveform switching request.

Alternatively, the UL waveform may refer to a normal (normal) UL waveform and/or a supplemental uplink (supplementary uplink, SUL) waveform. In a 5G communication system, the uplink waveform may be configured as a CP-OFDM waveform or a DFT-S-OFDM waveform.

As before, the network device may read the indication information from the waveform switching request, which may be waveform configuration information for instructing the network device to update the UL waveform of the cell or cell group of the terminal device.

Further, the network device may explicitly or implicitly determine that the UL waveform of the terminal device needs to be updated through the waveform switching request, thereby determining waveform configuration information of the updated UL waveform.

It should be understood that the waveform configuration information may be used to indicate the UL waveform used by the terminal device, and thus, the result obtained by the terminal device updating the configuration information of the UL waveform is the terminal device updating the UL waveform.

S203, the network equipment sends updated waveform configuration information, and correspondingly, the terminal equipment receives the updated waveform configuration information.

Wherein the waveform configuration information may be used to update UL waveforms of cells or groups of cells of the terminal device.

As before, the updated waveform configuration information may be the configuration information of the updated UL waveform. The updated UL waveform may be referred to as a target UL waveform, that is, the updated UL waveform may be a CP-OFDM waveform or a DFT-S-OFDM waveform.

It should be understood that the network device updates configuration information of UL waveforms of cells or cell groups of the terminal device, and in particular may refer to the network device determining to update/change the UL waveforms of the terminal device to target UL waveforms and determining waveform configuration information for the target UL waveforms. Wherein the target UL waveform may be a CP-OFDM waveform or a DFT-S-OFDM waveform.

Further, the updating of the waveform configuration information of the UL waveform by the network device may specifically include: the network device may determine a target UL waveform to use by the cell or group of cells of the terminal device from the CP-OFDM waveform and the DFT-S-OFDM waveform. After the network device determines the target UL waveform, the network device may determine waveform configuration information for the cell or group of cells of the terminal device at the target UL waveform.

That is, the waveform configuration information may be used to indicate a target UL waveform employed by the uplink of the terminal device and the network device. It is possible to determine which waveform to use for transmission of uplink data through the waveform configuration information.

The waveform configuration information may illustratively contain parameters involved in user configuration of the target UL waveform. For example, the waveform configuration information may include at least one of the following: waveform identification of the target UL waveform, waveform index of the target UL waveform, use duration of the target UL waveform, cycle information of the target UL waveform, signal level information of the target UL waveform, and the like.

Of course, the parameters listed for the waveform configuration information described above are merely exemplary and are not intended to be limiting in any way.

S204, the terminal equipment updates the UL waveform of the cell or the cell group according to the updated waveform configuration information.

As before, the waveform configuration information may refer to configuration information of a target UL waveform. In step 204, the terminal device updating the UL waveform of the cell or the cell group according to the updated waveform configuration information may specifically refer to that the terminal device changes the UL waveform of the cell or the cell group into the target UL waveform according to the updated waveform configuration information.

Of course, if the UL waveform indicated by the updated waveform configuration information is the same as the initial UL waveform originally configured by the terminal device, the terminal device may ignore the waveform configuration information sent by the network device at this time, so as to achieve the purpose of saving the running resources of the device.

It should be appreciated that the cells in the waveform switch request may include cells serving communications for the terminal device and/or cells camping or otherwise being nearby in the terminal device. A cell group may refer to a combination of cells serving the communication of a terminal device. A cell may include one or more. A cell group may include one or more cells.

Further, the terminal device updating the UL waveform of the cell or cell group may refer to the terminal device setting the UL waveform of the cell or cell group serving it as configuration information of the target UL waveform, so that uplink communication between the terminal device and the cell or cell group uses the target UL waveform corresponding to the configuration information to carry data.

It should be understood that the waveform configuration of the terminal device and the cell handover are two independent processes, that is, the terminal device may perform the UL waveform handover and also perform the cell handover. But either the original cell before cell switch or the target cell after cell switch can use the UL waveform newly configured by the terminal device.

As can be seen from the above description, the terminal device directly sends the waveform switching request to the network device, so that the network device triggers the switching of the UL waveform under the request of the terminal device. The terminal equipment initiates the switching of the UL waveform, so that the network equipment timely switches proper waveforms for the UL, the change of the UL waveform is more adaptive to the self switching requirement of the terminal equipment, and the waveform switching efficiency is improved.

As above, the terminal device may trigger a handover of the UL waveform. The terminal device may trigger the switching of UL waveforms according to a preset trigger frequency. The terminal device may also trigger UL waveform switching if it is determined that the first preset condition is satisfied. Fig. 3 is a signaling interaction diagram of a waveform switching method according to an embodiment of the present application. As shown in fig. 3, the waveform switching method provided in the embodiment of the present application may include:

s301, the terminal equipment responds to the fact that a first preset condition is met, and a waveform switching request is sent.

Wherein the waveform switching request is used to instruct the network device to update configuration information of uplink UL waveforms of cells or groups of cells of the terminal device.

That is, the terminal device detects that the UL waveform of the cell or the cell group satisfies the first preset condition, and may transmit the waveform switching request.

It should be understood that, in step 301, the response of the terminal device to the satisfaction of the first preset condition may specifically include: the UL waveform of the cell or group of cells of the terminal device satisfies a first preset condition. That is, the UL waveform of the cell or group of cells of the terminal device sends a waveform switching request to the network device in case it is determined that the first preset condition is satisfied.

Further, the terminal device satisfying the first preset condition may include that the transmission power of the terminal device itself is not adapted to the transmission power of the configured UL waveform.

As one embodiment, if the transmission power of the terminal device itself is not adapted to the transmission required power of the configured UL waveform, a waveform switching request is transmitted to the network device. To avoid communication interruption caused by failure of the terminal equipment to send the information carried by the UL waveform.

The transmission required power may refer to power required to transmit the configured UL waveform at normal times, among others.

Illustratively, the transmit power of the terminal device itself and the transmit demand power of the configured UL waveform may be not adapted to include at least one of:

The transmission power of the terminal device itself is smaller than the transmission required power of the configured UL waveform.

The transmission power of the terminal device itself is larger than the transmission required power of the configured UL waveform.

The absolute value of the difference between the transmission power of the terminal device itself and the transmission required power of the configured UL waveform is greater than a first threshold.

As still another embodiment, if the transmission power of the terminal device itself is adapted to the transmission power of the configured UL waveform, the operation of transmitting the waveform switching request is not made. So as to avoid the waste of communication resources caused by frequent switching of the UL waveform.

Illustratively, the terminal device's own transmit power is adapted to the transmit power of the configured UL waveform, and may include at least one of:

the transmission power of the terminal device itself is equal to the transmission required power of the configured UL waveform.

The absolute value of the difference between the transmission power of the terminal device itself and the transmission demand power of the configured UL waveform is less than or equal to the second threshold.

In this embodiment of the present application, the first threshold value and the second threshold value may be preset threshold values, and the first threshold value and the second threshold value may be equal or unequal. In the case where the first threshold value and the second threshold value are not equal, the first threshold value is larger than the second threshold value. Under the condition that the first threshold value is larger than the second threshold value, the difficulty of implementing conditions for initiating UL waveform switching by the terminal equipment is higher than that of not initiating UL waveform switching, and the problem that communication resources are wasted due to frequent triggering of UL waveform switching can be avoided.

In addition, if the absolute value of the difference between the transmission power of the terminal device and the transmission demand power of the configured UL waveform is between the first threshold and the second threshold when the first threshold is greater than the second threshold, the UL waveform switching may or may not be triggered, and may be set according to the use requirement. For example, if the UE has weak communication capability, the handover of the UL waveform may not be triggered. The UL communication capability is strong, and the switching of UL waveforms can be triggered. This is not limited in this embodiment.

S302, the network equipment updates the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment according to the waveform switching request.

It should be noted that, in this embodiment, some steps are the same as those in the foregoing embodiment, and are not described herein for brevity.

S303, the network equipment sends updated waveform configuration information, and correspondingly, the terminal equipment receives the updated waveform configuration information.

S304, the terminal equipment updates the UL waveform of the cell or the cell group according to the updated waveform configuration information.

As can be seen from the above description, the terminal device may timely initiate an UL waveform switching request to the network device when the first preset condition is satisfied, so as to improve the efficiency of waveform switching, and avoid performance loss caused by that the terminal device always uses an unsuitable waveform. In addition, through the constraint of the first preset condition, the terminal equipment can not initiate the switching of the UL waveform at will, so that the communication resources between the terminal equipment and the network equipment are saved.

As described above, the terminal device may determine whether the first preset condition is satisfied according to whether its own transmission power is adapted to the transmission required power of the configured UL waveform.

1) The working state of a radio frequency front end chip Power Amplifier (PA) of the terminal device meets a first preset state.

It should be understood that the rf front-end chip is a core device for wireless communication, and refers to a functional module after an antenna and before a transceiver, and generally includes a power amplifier PA, a filter/duplexer, a switch, a low noise amplifier, and the like. The performance directly determines the factors such as the strength, stability, power consumption and the like of the signal. The power amplifier PA is an important influence affecting the radio frequency front end chip.

It should be appreciated that the video front-end chip may include one or more PAs. The working state of the PA of the radio frequency front end chip of the terminal device meeting the first preset state may mean that the working state of one PA of the radio frequency chip of the terminal device meeting the first preset state. That is, the terminal device can distinguish different PAs for the case of multiple PAs and manage UL waveforms corresponding to the respective PAs separately.

Illustratively, it is assumed that the video front-end chip has two PAs, a first PA and a second PA, respectively. Assuming that the working state of the first PA meets the first preset state, the UL waveform may be switched for the cell or the cell group of the first PA. And if the working state of the second PA does not meet the first preset state, the cell or cell group of the second PA can not switch the UL waveform.

It should be appreciated that the first preset condition is satisfied in case the operational state of the PA satisfies the first preset state. Under the condition that the first preset condition is met, the terminal equipment can initiate a waveform switching request to update the UL waveform.

That is, in the case that the operation state of the PA is insufficient to support the current UL waveform transmission, the operation state of the PA is a first preset state. The first preset state may be described as: the UL waveform configured or currently configured by the terminal device is the working state of the PA at the time of abnormal transmission.

The cell or group of cells corresponding to the PA in the first preset state may be used to generate the waveform switching request. That is, the waveform switching request may be used to indicate waveform configuration information to update UL waveforms of cells or cell groups of the PA in the first preset state.

In one possible design, the operating state of the power amplifier PA may refer to the PA supporting transmission of a single carrier or supporting transmission of multiple carriers.

Taking the UL waveform configured by the terminal device as the CP-OFDM waveform as an example, the CP-OFDM waveform may be normally transmitted using a plurality of carriers. In contrast, if the CP-OFDM waveform is assumed to be abnormal in transmission when the operation state of the PA is a single carrier. At this time, the first preset state may refer to that the PA supports transmitting a single carrier.

It can be understood that when the UL waveform is a CP-OFDM waveform, if the working state of the PA is a single carrier, the working state of the PA satisfies the first preset state. If the working state of the PA is a plurality of carriers, the working state of the PA does not meet the first preset state.

Taking the UL waveform configured by the terminal device as a DFT-S-OFDM waveform as an example, the DFT-S-OFDM waveform may be normally transmitted using a single or multiple carriers. But the transmission power of the multiple carriers is larger and the power consumption is higher. If the DFT-S-OFDM waveform is abnormal when the working state of the PA is multiple carriers, the first preset state may refer to that the PA supports to transmit multiple carriers.

It can be understood that when the UL waveform is a DFT-S-OFDM waveform, if the working state of the PA is a plurality of carriers, the working state of the PA satisfies the first preset state. If the working state of the PA is a single carrier, the working state of the PA does not meet the first preset state.

Of course, the number of carriers supported by each of the CP-OFDM waveform and DFT-S-OFDM waveform listed above is merely exemplary, the number of carriers that the above two waveforms can transmit is not fixed, and the number of carriers required for the above waveform transmission is merely a few examples for explaining that the operation state of the PA satisfies the first preset state, which is not particularly limited.

In yet another possible design, multiple operating states may be preset for the PA and a determination may be made as to whether each operating state satisfies the first preset state. For example, the first state, the second state, the third state, and the fourth state may be preset for the PA. And setting that the first state and the second state do not satisfy the first preset state, and the third state and the fourth state satisfy the first preset state. Therefore, when the working state of the PA is the third state or the fourth state, the working state of the PA is determined to meet the first preset state.

It should be noted that the above-listed embodiments of the number of working states of the PA and whether the first preset state is satisfied are merely exemplary, and are not meant to be limiting, and the number and types of working states of the PA in the examples of the present application are not limited.

In this embodiment, the working state of a Power Amplifier (PA) of a radio frequency front end chip of the terminal device is directly used as a judgment object of the first preset condition, so as to improve the judgment efficiency and accuracy of the first preset condition.

2) The signal transmission capability of the terminal device satisfies a first preset capability.

Optionally, the signal transmission capability of the terminal may include at least one of: signal transmission capability of the terminal, actual transmission power. The signaling capability of the terminal may be, for example, a maximum transmission power and/or an average transmission power.

The first preset capability may refer to a capability threshold preset for a signal transmission capability of the terminal device.

Taking the signal transmission capability as an actual transmission power as an example, the first preset capability may be a set power threshold. The signal transmission capability of the terminal device satisfying the first preset capability may include: the actual transmit power of the terminal device is greater than the power threshold.

Taking the signaling capability of the signaling capability as an example of the terminal, the first preset capability may be a set capability threshold. The signal transmission capability of the terminal device satisfying the first preset capability may include: the signaling capability of the terminal device is greater than the capability threshold.

Of course, if the signal transmission capability is two of the actual transmission power and the signal transmission capability, the signal transmission capability of the terminal device meeting the first preset capability may mean that the actual transmission power of the terminal device is greater than the power threshold and the signal transmission capability is greater than the capability threshold.

It should be understood that in the case where the signaling capability is the maximum transmission power, the signaling capability being greater than the capability threshold may mean that the maximum transmission power is greater than the first threshold. In the case where the signaling capability is an average transmission power, a signaling capability greater than the capability threshold may mean that the average transmission power is greater than a second threshold. In the case where the signal transmission capability is the maximum transmission power and the average transmission power, the signal transmission capability being greater than the capability threshold may mean that the maximum transmission power is greater than the third threshold and the average transmission power is greater than the fourth threshold.

The specific values of the various thresholds mentioned above may be set according to the requirements of the user, and are not limited in this embodiment.

In this embodiment, the detection of the first preset condition is related to the signal transmission capability of the terminal device, so that on the basis of the first preset condition, the condition detection of performing UL waveform switching is related to a more direct signal transmission capability, thereby improving the detection efficiency and reliability of the first preset condition.

3) The signal processing capability of the terminal device satisfies the second preset capability.

Alternatively, the signal processing capability of the terminal device may refer to a capability corresponding to a processing function set for the terminal device. For example, peak-to-average power ratio (PARR) capability of the down-digital modulation may be used as a signal processing capability of the terminal device. Thus, the signal processing capabilities of the terminal device may comprise at least one of: PARR reduction capability, signal filtering capability, signal encoding capability, etc.

In this embodiment, the signal processing capability of the terminal device meeting the second preset capability may mean that the second preset capability exists in the signal processing capability of the terminal device.

Taking the second preset capability as an example of the PARR reduction capability, if the signal processing capability of the terminal equipment includes the PARR reduction capability, determining that the signal processing capability of the terminal equipment meets the second preset capability. If the signal processing capability of the terminal equipment does not comprise PARR reducing capability, determining that the signal processing capability of the terminal equipment does not meet the second preset capability.

In this embodiment, the signal processing capability of the terminal device participates in the detection of the first preset condition, so that the waveform switching of the terminal device can be associated with the signal processing capability, and whether the switching of the UL waveform needs to be executed or not is confirmed in time according to the signal processing capability, so that the loss of the signal transmission performance caused by using an unsuitable UL waveform is avoided.

As above, the waveform switching request may be sent by the terminal device to the network device. And transmission of the waveform switch request requires communication resources. In one possible design, the waveform switching request may be transmitted through signaling or a message, and a transmission manner of the waveform switching request in the present application will be described below:

1) The waveform switching request is carried on uplink control information (Uplink Control Information, UCI).

It should be understood that the terminal device may transmit uplink control information to the network device, and a part of fields in the uplink control information may be set to a waveform switching request. The waveform switching request is transmitted to the network device through the UCI.

It should be appreciated that some predefined field in the uplink control information carries a waveform switch request. The waveform switching request may be set in a predefined field in the uplink control information.

In this embodiment, the waveform switching request is transmitted to the network device through the uplink control information, so that the transmission process of the waveform switching request is locally higher in reliability, the transmission efficiency of the uplink control information is improved, and the transmission delay is reduced.

2) The waveform switching request is carried on a first radio resource control (radio resource control, RRC) message.

It is understood that the terminal device may transmit a first RRC message to the network device. A certain predefined field in the first RRC message carries the waveform switching request. The waveform switching request may be set in a predefined field in the first RRC message.

In this embodiment, the waveform switching request is sent to the terminal device through the RRC message, and unnecessary channel overhead can be avoided by using the existing signaling transmission, so that flexible and efficient information transmission can be implemented while communication resources are saved, and service performance is improved.

3) The waveform switch request is carried in a first medium access control-element (MAC-CE) message.

It should be appreciated that the terminal device may transmit the first MAC CE message to the network device. A certain predefined field in the first MAC CE message carries a waveform switch request. The waveform switch request may be set in a predefined field in the first MAC-CE message.

In this embodiment, the waveform switching request is sent to the terminal device through the MAC CE signaling, so that the signaling transmission frequency can be reduced, the waveform switching request is transmitted to the terminal device, the transmission efficiency can be improved, and more flexible UL waveform switching is realized.

In addition to transmitting the waveform switch request by the above message or signaling, a proprietary signaling bearer waveform switch request may be used. The proprietary signaling may refer to signaling for carrying data set between the terminal device and the network device, which is different from a common signaling bearer shared by all UEs. The special signaling can be set to realize the specific transmission of the UE, and the data transmission efficiency of the UE is improved.

The transmission efficiency and the transmission safety of the configuration information can be improved by transmitting the configuration information to the terminal equipment through the special signaling due to higher transmission efficiency and higher flexibility of the special signaling.

As above, the waveform switch request may be transmitted to the network device by a message or signaling. Whereas the transmission of messages or signalling requires channels or communication resources. Embodiments corresponding to the bearer mode and the transmission mode of the waveform switching request will be described in detail below.

In the first embodiment, the waveform switching request is carried on the uplink control information. And at this time, the network device is further configured to: and sending the resource configuration information, and correspondingly, the terminal equipment is also used for receiving the resource configuration information. The resource configuration information is used for indicating that a physical uplink control channel (Physical Uplink Control Channel, PUCCH) is configured for the terminal device, and when the waveform switching request is carried on the uplink control information, the uplink control information is transmitted through the PUCCH.

The first embodiment is described in detail below with reference to fig. 4. As shown in fig. 4, the waveform switching method provided in the embodiment of the present application may include:

s401, the network equipment sends resource configuration information, and accordingly, the terminal equipment can receive the resource configuration information.

The resource configuration information is used for indicating that a Physical Uplink Control Channel (PUCCH) is configured for the terminal equipment, and when the waveform switching request is carried on the uplink control information, the uplink control information is transmitted through the PUCCH.

It should be appreciated that the network device may indicate the resource configuration information to the terminal device. The network device indicates the PUCCH to the terminal device.

It is understood that the network device may transmit DCI or a third RRC message or a third MAC CE message to the terminal device. The DCI or the third RRC message or the third MAC CE message may carry the resource configuration information.

The resource configuration information may be used to determine PUCCH resources or PUCCH resource sets. And determining PUCCH resources for PUCCH transmission in the PUCCH resource set.

The resource allocation information may include information such as a resource indicator (Preamble Resource Indicator, PRI) of the PUCCH or a PUCCH resource index, whereby the corresponding PUCCH resource is determined by the resource indicator (PRI) of the PUCCH or the PUCCH resource index, or the like. In addition, the resource allocation information may further include information for determining a PUCCH format of a PUCCH resource, a symbol for PUCCH transmission, the number of symbols for PUCCH transmission, a Physical Resource Block (PRB) for PUCCH transmission, and the like.

The configuration of the PUCCH may be achieved through the resource configuration information.

S402, the terminal equipment configures a physical uplink control channel PUCCH.

In an alternative embodiment, the terminal device configuring the PUCCH may include at least one of:

configuring a corresponding PUCCH by using a PUCCH index in the resource configuration information;

configuring a corresponding PUCCH by using a resource indicator (PRI) in the resource configuration information;

the corresponding PUCCH is configured with at least one of a PUCCH format, a symbol for PUCCH transmission, the number of symbols for PUCCH transmission, and a Physical Resource Block (PRB) for PUCCH transmission in the resource configuration information.

S403, the terminal equipment sends a waveform switching request through the configured PUCCH.

Alternatively, sending a waveform switching request through the configured PUCCH may specifically refer to: and transmitting uplink control information to the network equipment through the PUCCH, wherein the uplink control information carries a waveform switching request, so that the waveform switching request is sent to the network equipment.

Optionally, sending the waveform switching request through the PUCCH may specifically further refer to: and sending a PUCCH signal to the network equipment through the PUCCH, wherein the PUCCH signal carries a waveform switching request, so that the waveform switching request is sent to the network equipment.

It should be appreciated that the waveform switch request may instruct the network device to switch UL waveforms for a cell or group of cells of the terminal device. The waveform switch request instructing the cell or group of cells to perform UL waveform switch may include at least one of:

instructing the first cell to perform UL waveform switching; instructing the first cell group to perform UL waveform switching; indicating that the second cell does not perform UL waveform switching; the second cell group is instructed not to perform UL waveform switching.

The waveform switch request may carry at least one of the following information:

a first cell identity for performing UL waveform switching; a first cell group identity that performs UL waveform switching; a second cell identity that does not perform UL waveform switching; a second cell group identity that does not perform UL waveform switching; cell identification corresponding to cells in the same cell group for executing UL waveform switching; cell identities corresponding to cells within a cell group where UL waveform switching is not performed.

S404, the network equipment updates the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment according to the waveform switching request.

S405, the network equipment sends updated waveform configuration information, and correspondingly, the terminal equipment receives the updated waveform configuration information.

It should be appreciated that the network device transmit waveform configuration information may be transmitted over a physical downlink control channel (Physical Downlink Control Channel, PDCCH) with the terminal device.

S406, the terminal equipment updates the UL waveform of the cell or the cell group according to the updated waveform configuration information.

As can be seen from the above description, the network device can configure PUCCH resources to the terminal device, and by configuring PUCCH resources to the terminal device, rapid and professional transmission of information with the terminal device can be achieved, so that information transmission efficiency is improved, various information, for example, a waveform switching request, can be rapidly transmitted to the network device through PUCCH resources, response speed of the network device to UL waveform switching is improved, and further UL waveform switching efficiency is improved.

In the second embodiment, the waveform switching request is carried in the first RRC message or the first MAC-CE message. At this time, the RRC message or the MAC-CE message may be used for information transmission of the terminal device and the network device. Accordingly, the waveform configuration information fed back by the network device to the terminal device may be carried in the second RRC message or the second MAC-CE message.

As above, the waveform switching request and the waveform configuration information may be transmitted through RRC messages and MAC-CE messages. Fig. 5 is a signaling interaction diagram of a waveform switching method according to an embodiment of the present application. As shown in fig. 5, the waveform switching method provided in the embodiment of the present application may include:

s501, the terminal device sends a first radio resource control RRC message or a first medium access control-control element MAC-CE message.

Wherein the first RRC message or the first MAC-CE message carries a waveform switching request. The waveform switch request is used to instruct the network device to update configuration information of the uplink UL waveform of the cell or group of cells of the terminal device.

The RRC message or MAC-CE message may also directly carry information about the cell or group of cells that need to perform UL handover.

Table 1 below shows an example of a MAC-CE message indicating a cell or group of cells.

TABLE 1

Wherein, celli (cell i) of the first row is used to represent different cells, and Di is used to represent waveform switching identification of celli. i is an integer greater than 0, and as shown in table 1, i is an integer of 1 to 8.

For example, di=first flag, indicating that celli needs to perform UL waveform switching, and di=second flag, indicating that celli does not need to perform UL waveform switching. Of course, the meaning of whether or not UL waveform switching is performed represented by the different identifications is merely exemplary and not particularly limited. For another example, di=second flag, indicates that celli needs to perform UL waveform switching, and di=first flag, indicates that celli does not need to perform UL waveform switching. In addition, di may use other values or conform to represent performing UL waveform switching or not performing UL waveform switching, which is not excessively limited in the present embodiment.

Illustratively, the first identifier may be 1 and the second identifier may be 0. Alternatively, the first identification may be 1 and the second identification may be 2. Of course, the values of the first identifier and the second identifier are merely exemplary, and are not particularly limited.

S502, the network equipment reads a waveform switching request carried by the first RRC message or the first MAC-CE message.

S503, the network equipment determines the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment according to the waveform switching request.

S504, the network equipment sends a second RRC message or a second MAC-CE message, wherein the second RRC message or the second MAC-CE message carries waveform configuration information, and the waveform configuration information is used for updating the UL waveform of the cell or the cell group of the terminal equipment.

S505, the terminal equipment reads the updated waveform configuration information from the second RRC message or the second MAC-CE message.

S506, the terminal equipment updates the UL waveform of the cell or the cell group according to the updated waveform configuration information.

As can be seen from the above description, the indication of the waveform switching request is implemented by the manner that the terminal device sends the first RRC message or the first MAC CE message to the network device, so that the network device timely responds to the UL waveform switching requirement of the terminal device, which can avoid the terminal device from always using the unadapted UL waveform to perform message transmission, and have adverse effects such as message transmission failure or slow transmission, information loss, and the like, thereby improving the communication experience of the user.

As above, the waveform switching request is used to instruct the network device to update configuration information of the uplink UL waveform of the cell or group of cells of the terminal device.

Further, the waveform switching request includes a first identification of a first cell or a first cell group to which UL waveform switching is to be performed.

The first identity is used for indicating the network equipment to update the configuration information of the UL waveform of the first cell or the first cell group;

the steps involved in the above embodiments update the UL waveform of the cell or the cell group according to the updated waveform configuration information, including:

And updating the UL waveform of the first cell or the first cell group according to the updated waveform configuration information.

It should be appreciated that the first identity may be used to indicate that a UL waveform switch occurs for a first cell or a cell within a first cell group.

In one possible design, the first identification may indicate, for example, that a UL waveform switch of a cell or group of cells is performed, and the second identification may indicate, for example, that a UL waveform switch of a cell or group of cells is not performed.

Further, the network device determines whether the corresponding first cell or the first cell group performs UL waveform switching through the read first identification. The indication of the first identity may comprise at least one of:

the network device reads the first identifier of the first cell from the waveform switching request as the first identifier, and determines that the first cell executes UL waveform switching.

The network device reads the first identifier of the first cell group from the waveform switching request as the first identifier, and determines that the first cell group executes UL waveform switching.

As can be seen from the above description, the network device performs the prompt of waveform switching on the first cell or the first cell group through the first identifier, so as to implement targeted UL waveform switching, complete UL waveform switching for the first cell or the first cell group in time, avoid communication failure caused by the fact that the UL waveform used by the first cell or the first cell group is not adapted to the transmission power of the UL waveform, solve the communication problem in time, and improve the user experience.

In addition, the waveform switching request also includes a second identification of a second cell or a second cell group that is not required to perform UL waveform switching;

the second identification is used to indicate that the network device does not update configuration information of UL waveforms of the second cell or second cell group.

It should be appreciated that the second identity may indicate that the second cell or cells within the second cell group do not perform UL waveform switching.

In one possible design, the network device determines whether the corresponding second cell or second cell group performs UL waveform switching by reading the second identity. The indication of the second identity may comprise at least one of:

the network device reads the first identifier of the second cell from the waveform switching request as the second identifier, and determines that the second cell does not execute UL waveform switching.

The network device reads the first identifier of the second cell group from the waveform switching request as the second identifier, and determines that UL waveform switching is not performed in the second cell group.

As can be seen from the above description, the network device performs the prompt of not performing the waveform switching on the second cell or the second cell group through the second identifier, so as to implement the prompt of targeted non-UL waveform switching, and avoid performing the UL waveform switching on the second cell or the second cell group which does not need to perform the UL waveform switching, thereby generating the waste of communication resources.

After the terminal device sends the waveform switching request, it is necessary to wait for receiving the waveform configuration information. In order to make the use of the terminal device unaffected, the reception time of the waveform configuration information may be constrained.

Further, fig. 6 is a flowchart of a waveform switching method according to an embodiment of the present application. The waveform switching method provided in this embodiment may be applied to a terminal device, as shown in fig. 6, and the method may include:

s601, starting a timer.

Optionally, a timer is started at the same time as the waveform switching request is sent. Or a timer is started after the waveform switching request is sent. The timer may be started simultaneously with the waveform switching request or at a predefined interval of the transmission time of the waveform switching request. The predefined interval may be a preset time interval, and the value may be close to zero, and the unit may be seconds, microseconds, milliseconds, or the like, which is not limited in this embodiment.

S602, whether updated waveform configuration information is not received within the effective duration of the timer; if yes, go to step 603, if no, go to step 604.

And S603, sending a waveform switching request to the network equipment again.

S604, the terminal equipment receives the updated waveform configuration information.

And S605, the terminal equipment updates the UL waveform of the cell or the cell group according to the updated waveform configuration information.

In this embodiment, the terminal device may start the timer after sending the waveform switching request.

Alternatively, the timer may be indicated by the network device or may be preconfigured by the terminal device. The terminal device may be configured to obtain first information, which may be used to indicate a timer. Acquiring the first information may be described as receiving the first information or transmitting the first information.

In some embodiments, the first information may include at least one of: timer related information, timer configuration information and timer identification. The related information may include at least one of: information such as the duration, identity, type and/or name of the timer. The configuration information may include at least one of: start information, running information and/or call information of the timer, etc. The identification may be information indicating an identification timer. The following list a few possible examples of timers:

1. t310 timer

The timer T310 is the time interval before the terminal device waits for downlink scheduling. The effective duration of T310 may be, for example, that the original network device previously issued to the terminal device through signaling, or may be predefined, which is not limited in this application. After sending the waveform switching request, the terminal device starts a T310 timer. If the T310 timer times out, but no updated waveform configuration information is received, the waveform switching request is sent again.

2. Predefined timer

The predefined timer may be a timer predefined in the terminal device, the time interval of which may be adaptively determined. The predefined timer may be issued by the original network device through signaling or may be predefined at the terminal device, which is not limited in this application. The terminal device starts a predefined timer after sending the waveform switching request. If the predefined timer times out, but the updated waveform configuration information is not received, the waveform switching request is sent again.

It should be noted that the timers listed above are exemplary only and should not be construed as limiting in any way.

From the above, it can be seen that the timer is used to detect the time-out of the reception of the waveform configuration information, so that the terminal device limits the reception time of the waveform configuration information, thereby avoiding the phenomenon of failure in UL waveform switching caused by long waiting for the reception of the waveform configuration information, and improving the success rate of UL waveform switching.

The waveform switching method provided in the embodiment of the present application is described in detail above with reference to fig. 2 to 6, and the apparatus provided in the embodiment of the present application is described in detail below with reference to fig. 7.

Fig. 7 is a schematic block diagram of a communication device 700 provided by an embodiment of the present application. As shown in fig. 7, the communication apparatus 700 may include a processing unit 701 and a transceiving unit 702.

In one possible design, the communication apparatus 700 may implement the operations of the corresponding terminal device in the above method embodiments, for example, the communication apparatus may be a terminal device, or a component configured in the terminal device, such as a chip or a circuit.

The communication device may implement the corresponding operation of the terminal device in the method embodiments shown in fig. 2 to 6. For example, the transceiver unit 702 may perform part of the steps of 201 in the method, and the processing unit 701 may perform part of the steps of 204 in the method. And each of the units in the communication device 700 and the other operations and/or functions described above are respectively intended to implement a corresponding flow in the method embodiment shown in fig. 2.

In one possible design, the communication apparatus 700 may implement the operations of the corresponding network device in the above method embodiments, for example, the communication apparatus may be a network device, or a component configured in a network device, such as a chip or a circuit.

The communication device may implement the corresponding operation of the network apparatus in the method embodiments shown in fig. 2 to 6. For example, the transceiver unit 702 may perform part of the steps of 203 in the method, and the processing unit 701 may perform part of the steps of 202 in the method. And each of the units in the communication device 700 and the other operations and/or functions described above are respectively intended to implement a corresponding flow in the method embodiment shown in fig. 2.

Specifically, when the communication device 700 is used to perform the waveform switching method shown in fig. 2, the transceiver unit 702 may be configured to: transmitting a waveform switching request, wherein the waveform switching request is used for indicating the network equipment to update the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment; and receiving updated waveform configuration information. The processing unit 701 may be configured to update the UL waveform of the cell or the cell group according to the updated waveform configuration information.

Specifically, when the communication device 700 is used to perform the waveform switching method shown in fig. 2, the transceiver unit 702 may be configured to: and receiving a waveform switching request, wherein the waveform switching request is used for indicating the network equipment to update the waveform configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment. The processing unit 701 may be configured to: and updating the configuration information of the uplink UL waveform of the cell or the cell group of the terminal equipment according to the waveform switching request. The transceiver unit 702 may also be configured to send updated waveform configuration information for updating UL waveforms of cells or groups of cells of the terminal device.

When the communication apparatus 700 is used in a terminal device, the transceiver unit 702 may be further configured to: and sending a waveform switching request in response to the first preset condition being met.

And the first preset condition is satisfied, which may specifically include at least one of the following: the working state of the radio frequency front end chip power amplifier PA of the terminal equipment meets a first preset state; the signal transmission capability of the terminal equipment meets a first preset capability; the signal processing capability of the terminal device satisfies the second preset capability.

That is, the terminal device determines that the first preset condition is satisfied when detecting that at least one of the working state satisfying the radio frequency front end chip power amplifier PA satisfies the first preset state, the signal transmission capability satisfies the first preset capability, and the signal processing capability satisfies the second preset capability. The terminal device may send a waveform switching request at this time.

In one possible design, the transceiver unit 702 may also be configured to perform at least one of the following: transmitting uplink control information and transmitting a first Radio Resource Control (RRC) message; a first medium access control-control element MAC-CE message is sent.

The waveform switching request is carried on the uplink control information; and/or the waveform switching request is carried in a first Radio Resource Control (RRC) message; and/or the waveform switching request is carried on the first media access control-control element MAC-CE message. So that the waveform switching request is sent to the network device.

When the communication apparatus 700 is applied to a network device, the transceiver unit 702 may be further configured to: and sending resource configuration information, wherein the resource configuration information is used for indicating to configure a Physical Uplink Control Channel (PUCCH) for the terminal equipment, and the uplink control information is transmitted through the PUCCH under the condition that the waveform switching request is carried on the uplink control information.

Accordingly, when the communication apparatus 700 is applied to a terminal device, the transceiver unit 702 may be further configured to: and receiving resource configuration information, wherein the resource configuration information is used for indicating to configure a Physical Uplink Control Channel (PUCCH) for the terminal equipment, and the uplink control information is transmitted through the PUCCH under the condition that the waveform switching request is carried on the uplink control information.

Whereas PUCCH resources may be used for information transmission between a terminal device and a network device. The transceiver unit 702 of the terminal device is further configured to: and sending the uplink control information through the PUCCH. The transceiver unit 702 of the network device is further configured to receive uplink control information through the PUCCH. The uplink control information may carry a waveform switching request.

In yet another possible design, when the communication apparatus 700 is applied to a terminal device, the transceiver unit 702 is further configured to: the first RRC message or the first MAC-CE message is transmitted. And the waveform switching request is carried in the first RRC message or the first MAC-CE message.

Accordingly, when the communication apparatus 700 is applied to a network device, the transceiver unit 702 is further configured to: a first RRC message or a first MAC-CE message is received. The processing unit 701 is configured to read a waveform switching request from the first RRC message or the first MAC-CE message.

The processing unit 701 corresponding to the network device updates the configuration information of the uplink UL waveform of the cell or the cell group of the terminal device according to the waveform switching request. The updated waveform configuration information may be carried in a second RRC message or a second MAC-CE message.

The transceiver unit 702 corresponding to the network device is further configured to: and transmitting a second RRC message or a second MAC-CE message. Correspondingly, the transceiver unit 702 corresponding to the terminal device is further configured to: a second RRC message or a second MAC-CE message is received. The processing unit 701 corresponding to the terminal device is further configured to: and reading the updated waveform configuration information from the second RRC message or the second MAC-CE message.

In yet another possible design, the waveform switch request includes a first identification of a first cell or a first group of cells to perform the UL waveform switch.

When the communication apparatus 700 is applied to a network device, the processing unit 701 is further configured to: and updating the waveform configuration information of the UL waveform of the first cell or the first cell group according to the waveform switching request, wherein the updated waveform configuration information is used for indicating the terminal equipment to update the UL waveform of the first cell or the first cell group.

When the communication apparatus 700 is applied to a terminal device, the processing unit 701 is further configured to: and updating the UL waveform of the first cell or the first cell group according to the updated waveform configuration information.

In yet another possible design, the waveform switch request includes a second identification of a second cell or group of second cells that are not required to perform UL waveform switching. The second identification is used to indicate that the network device does not update the waveform configuration information of the UL waveform of the second cell or second cell group.

When the communication apparatus 700 is applied to a network device, the processing unit 701 is further configured to: according to the waveform switching request, it is determined that the UL waveform of the second cell or the second cell group does not perform configuration update.

In yet another possible design, when the communication apparatus 700 is applied to a terminal device, the processing unit 701 is further configured to: starting a timer; and if the updated waveform configuration information is not received within the effective duration of the timer, sending a waveform switching request to the network equipment again.

It should be further understood that the division of the modules in the embodiments of the present application is merely illustrative, and there may be another division manner in actual implementation, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, or may exist separately and physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.

It should be appreciated that the communications apparatus 700 may correspond to the terminal device 120 or the network device 110 in the communications system shown in fig. 1. The processing unit 701 in the communication apparatus 700 may correspond to a processor in the terminal device 120 or the network device 110, and may call, by using the processor in the terminal device 120 or the network device 110, instructions stored in the memory to implement the above functions, such as a network coding function, an original packet acquiring function, and the like; the transceiver unit 702 may correspond to an interface in the terminal device 120 or the network device 110, and may implement the above-described functions of receiving and/or transmitting data in response to an instruction of the processor.

It should also be appreciated that the transceiving unit 702 in the communication apparatus 700 may be implemented by a transceiver or a communication interface, for example, may correspond to the transceiver 2020 in the terminal device 2000 shown in fig. 8 and the transceiver 3100 in the network device 3000 shown in fig. 9. The processing unit 701 in the communication apparatus 700 may be implemented by at least one processor, and may correspond to the processor 2010 in the terminal device 2000 shown in fig. 8 and the processor 3202 in the network device 3000 shown in fig. 9, for example.

Fig. 8 is a schematic structural diagram of a terminal device 2000 provided in an embodiment of the present application. The terminal device 2000 may be applied to a system as shown in fig. 1, and perform the functions of the terminal device in the above-described method embodiment. As shown in fig. 8, the terminal device 2000 includes a processor 2010 and a transceiver 2020. Optionally, the terminal device 2000 further comprises a memory 2030. Wherein the processor 2010, the transceiver 2020 and the memory 2030 may communicate with each other via an internal connection path, transferring control and/or data signals, the memory 2030 is used for storing a computer program, and the processor 2010 is used for calling and running the computer program from the memory 2030 to control the transceiver 2020 to transceive signals. Optionally, the terminal device 2000 may further include an antenna 2040 for transmitting uplink data and uplink control signaling output by the transceiver 2020 through a wireless signal.

The processor 2010 and the memory 2030 may be combined into a single processing device, and the processor 2010 is configured to execute program codes stored in the memory 2030 to implement the functions described above. In particular implementations, the memory 2030 may also be integrated within the processor 2010 or separate from the processor 2010. The processor 2010 may correspond to the processing unit 701 in fig. 7.

The transceiver 2020 may correspond to the transceiver unit 702 in fig. 7. The transceiver 2020 may include a receiver (or receiver, receiving circuitry) and a transmitter (or transmitter, transmitting circuitry). Wherein the receiver is for receiving signals and the transmitter is for transmitting signals.

It should be understood that the terminal device 2000 shown in fig. 8 is capable of implementing the respective processes involving the terminal device in the method embodiments shown in fig. 2 to 6. The operations and/or functions of the respective modules in the terminal device 2000 are respectively for implementing the corresponding flows in the above-described method embodiment. Reference is specifically made to the description in the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid repetition.

The above-described processor 2010 may be used to perform the actions described in the previous method embodiments as being performed internally by the terminal device, while the transceiver 2020 may be used to perform the actions described in the previous method embodiments as being transmitted to or received from the network device by the terminal device. Please refer to the description of the foregoing method embodiments, and details are not repeated herein.

Optionally, the terminal device 2000 may also include a power supply 2050 for providing power to various devices or circuits in the terminal device.

In addition, in order to make the functions of the terminal device more complete, the terminal device 2000 may further include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, a sensor 2100, and the like, and the audio circuit may further include a speaker 2082, a microphone 2084, and the like.

Fig. 9 is a schematic structural diagram of a network device provided in the embodiment of the present application, for example, may be a schematic structural diagram of a base station/CU. The base station 3000 may be applied to the system shown in fig. 1, and perform the functions of the network device in the above method embodiment. As shown in fig. 9, the base station 3000 may include one or more radio frequency units, such as a remote radio frequency unit (remote radio unit, RRU) 3100 and one or more baseband units (BBU) (also referred to as Distributed Units (DUs)) 3200.RRU 3100 may be referred to as a transceiver unit, corresponding to transceiver unit 702 in fig. 7. Alternatively, the transceiver unit 3100 may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 3101 and a radio frequency unit 3102. Alternatively, the transceiving unit 3100 may include a receiving unit, which may correspond to a receiver (or receiver, receiving circuit), and a transmitting unit, which may correspond to a transmitter (or transmitter, transmitting circuit). The RRU 3100 is mainly configured to receive and transmit a radio frequency signal and convert the radio frequency signal to a baseband signal, for example, to send indication information to a terminal device. The BBU 3200 portion is mainly used for baseband processing, control of a base station, and the like. The RRU 3100 and BBU 3200 may be physically located together or may be physically separate, i.e. distributed base stations.

BBU 3200 is a control center of a base station, and may also be referred to as a processing unit, and may correspond to processing unit 701 in fig. 7, and is mainly configured to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on. For example, the BBU (processing unit) may be configured to control the base station to perform the operation procedure with respect to the network device in the above-described method embodiment, for example, to generate the above-described indication information, etc.

In one example, BBU 3200 may be formed from one or more single boards, where the multiple single boards may support a single access system radio access network (e.g., an LTE network), or may support different access systems radio access networks (e.g., an LTE network, a 5G network, or other networks). BBU 3200 further comprises memory 3201 and processor 3202. Memory 3201 is used to store the necessary instructions and data. The processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation procedures related to the network device in the above-described method embodiment. Memory 3201 and processor 3202 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the base station 3000 shown in fig. 9 is capable of implementing various processes involving network devices in the method embodiments shown in fig. 2-6. The operations and/or functions of the respective modules in the base station 3000 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference is specifically made to the description in the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid repetition.

The BBU 3200 described above may be used to perform actions described in the foregoing method embodiments as being implemented internally by a network device, while the RRU 3100 may be used to perform actions described in the foregoing method embodiments as being transmitted to or received from a terminal device by the network device. Please refer to the description of the foregoing method embodiments, and details are not repeated herein.

It should be understood that the base station 3000 shown in fig. 9 is only one possible architecture of a network device, and should not constitute any limitation to the present application. The method provided by the application can be applied to network devices of other architectures. For example, network devices containing CUs, DUs and active antenna units (active antenna unit, AAU), etc. The specific architecture of the network device is not limited in this application.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the method of any of the method embodiments described above.

It should be understood that the processing means described above may be one or more chips. For example, the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip or a chip system, which has signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the application, the application further provides a computer program product, which comprises: computer program code which, when run on a computer, causes the computer to perform the method of any of the embodiments shown in fig. 2 to 6.

According to the method provided in the embodiments of the present application, there is further provided a computer readable medium storing a program code, which when run on a computer, causes the computer to perform the method of any one of the embodiments shown in fig. 2 to 6.

According to the method provided by the embodiment of the application, the application further provides a system, which comprises the one or more terminal devices and the one or more network devices.

The network device in the above-mentioned respective apparatus embodiments corresponds entirely to the network device or the terminal device in the terminal device and method embodiments, the respective steps are performed by respective modules or units, for example, the steps of receiving or transmitting in the method embodiments are performed by the communication unit (transceiver), and other steps than transmitting and receiving may be performed by the processing unit (processor). Reference may be made to corresponding method embodiments for the function of a specific unit. Wherein the processor may be one or more.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between 2 or more computers. Furthermore, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

In the above-described embodiments, the functions of the respective functional units may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (program) are loaded and executed on a computer, the processes or functions in accordance with the embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (digital video disc, DVDs)), or semiconductor media (e.g., solid State Disks (SSDs)), or the like.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A waveform switching method, comprising:

transmitting a waveform switching request, wherein the waveform switching request is used for indicating a network device to update waveform configuration information of an Uplink (UL) waveform of a cell or a cell group of a terminal device;

receiving updated waveform configuration information;

and updating the UL waveform of the cell or the cell group according to the updated waveform configuration information.

2. The method of claim 1, wherein the sending the waveform switching request comprises:

and sending the waveform switching request in response to the first preset condition being met.

3. The method of claim 2, wherein the meeting a first preset condition comprises at least one of:

the signal processing capability of the terminal device satisfies a second preset capability.

4. The method of claim 1, further comprising any one of:

the waveform switching request is carried on uplink control information;

The waveform switching request is carried on a first medium access control-control element MAC-CE message.

5. The method according to claim 4, wherein the method further comprises:

and receiving resource configuration information, wherein the resource configuration information is used for indicating the configuration of a Physical Uplink Control Channel (PUCCH) for the terminal equipment, and the uplink control information is transmitted through the PUCCH when the waveform switching request is carried on the uplink control information.

6. The method of claim 4, wherein the updated waveform configuration information is carried in a second RRC message or a second MAC-CE message if the waveform switching request is carried in a first RRC message or a first MAC-CE message.

7. The method according to any of claims 1-6, wherein the waveform switching request comprises a first identification of a first cell or a first group of cells to which UL waveform switching is to be performed;

the first identity is used for indicating the network equipment to update the waveform configuration information of the UL waveform of the first cell or the first cell group;

the updating the UL waveform of the cell or the cell group according to the updated waveform configuration information includes:

8. The method of claim 7, wherein the waveform switch request further includes a second identification of a second cell or a second group of cells that are not required to perform UL waveform switching;

the second identity is to indicate that the network device does not update waveform configuration information of UL waveforms of the second cell or the second cell group.

9. The method according to any one of claims 1-6, further comprising:

starting a timer;

and if the updated waveform configuration information is not received within the effective duration of the timer, sending a waveform switching request to the network equipment again.

10. A waveform switching method, comprising:

receiving a waveform switching request, wherein the waveform switching request is used for indicating a network device to update waveform configuration information of an Uplink (UL) waveform of a cell or a cell group of a terminal device;

updating configuration information of Uplink (UL) waveforms of cells or cell groups of the terminal equipment according to the waveform switching request;

and sending updated waveform configuration information, wherein the waveform configuration information is used for updating the UL waveform of the cell or the cell group of the terminal equipment.

11. The method as recited in claim 10, further comprising:

and sending resource configuration information, wherein the resource configuration information is used for indicating the configuration of a Physical Uplink Control Channel (PUCCH) for the terminal equipment, and the uplink control information is transmitted through the PUCCH when the waveform switching request is carried on the uplink control information.

12. The method of claim 10, wherein the updated waveform configuration information is carried in a second RRC message or a second MAC-CE message if the waveform switching request is carried in a first RRC message or a first MAC-CE message.

13. The method of claim 10, wherein the waveform switch request includes a first identification of a first cell or a first group of cells to perform UL waveform switch; the method further comprises the steps of:

and updating waveform configuration information of the UL waveform of the first cell or the first cell group according to the waveform switching request, wherein the updated waveform configuration information is used for indicating terminal equipment to update the UL waveform of the first cell or the first cell group.

14. The method of claim 13, wherein the waveform switch request further includes a second identification of a second cell or a second group of cells that are not required to perform UL waveform switching; the method further comprises the steps of:

And according to the waveform switching request, determining that the UL waveform of the second cell or the second cell group does not execute configuration update.

15. A terminal device, comprising: a processor and a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory to cause the terminal device to perform the method of any one of claims 1-9.

16. A network device, comprising: a processor and a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory to cause the network device to perform the method of any one of claims 10-14.

17. A computer readable storage medium storing a computer program, which when executed by a processor performs the method of any one of claims 1-14.

18. A system on a chip comprising at least one processor and a communication interface, the communication interface and the at least one processor being interconnected by a wire, the at least one processor being configured to execute a computer program or instructions to perform the method of any of claims 1-14.

19. A computer program product comprising a computer program which, when run, causes a computer to perform the method of any of claims 1-14.