WO2024093531A1 - Communication method and related apparatus - Google Patents

Abstract

A communication method and a related apparatus. The method is applicable to a terminal device. The method comprises: receiving first indication information from an access network device, wherein the first indication information is used for indicating that a first working mode or a second working mode is enabled, the first working mode being that a terminal device uses user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode being that the terminal device communicates with the access network device by using cell discontinuous transmission CellDTX; and according to the first indication information, determining to use the first working mode or the second working mode to communicate with the access network device. By using the embodiments of the present application, an access network device can flexibly indicate the working mode of a terminal device by means of the first indication information, and in response to the first indication information, the terminal device can communicate with the access network device in a corresponding mode, such that the energy conservation of a system is realized.

Description

Communication method and related device

This application claims priority to the Chinese patent application filed with the China Patent Office on November 4, 2022, with application number 202211379162.1, and invention name “Communication Methods and Related Devices”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method and related devices.

Background technique

For connected user equipment (UE), in order to save its power, the base station can configure a discontinuous reception (DRX) mechanism (i.e., UE DRX mechanism) for the UE. This UE DRX mechanism allows the UE to enter a sleep mode at certain times in the UE DRX cycle instead of monitoring downlink control channels, such as the physical downlink control channel (PDCCH). When it is necessary to monitor the PDCCH, it wakes up from the sleep mode and monitors the PDCCH during the wake-up time of the UE DRX cycle, so that the UE can achieve power saving. When the wake-up times of multiple UEs served by the base station are different, the base station needs to send downlink control channels to the UE at different times during the UE wake-up time, but this method is not conducive to system energy saving or base station energy saving.

Summary of the invention

The present application provides a communication method and related devices, which can achieve system energy saving.

In a first aspect, the present application provides a communication method, which is applied to a terminal device, and the method includes:

Receiving first indication information from the access network device, the first indication information is used to indicate enabling the first working mode or the second working mode, where the first working mode is that the terminal device uses user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device uses cell discontinuous transmission CellDTX to communicate with the access network device;

Determine, according to the first indication information, whether to adopt the first working mode or the second working mode to communicate with the access network device.

In the present application, the first indication information can be used to indicate which working mode the terminal device should enter (for example, Cell DTX working mode or UE DRX working mode). This method of indicating two different energy-saving modes at the same time through one piece of information is more flexible and can achieve the purpose of system energy saving.

In a possible implementation, the first indication information is further used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode:

Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal.

In this implementation, the first indication information can also indicate whether to perform one or more operations such as monitoring PDCCH, monitoring downlink common signals, or sending uplink physical signals in the entered/enabled working mode, making the indication of the first indication information more flexible and more functional.

In a possible implementation, the receiving first indication information from the access network device includes:

During the inactive time of the first working mode or the second working mode, the first indication information is received from the access network device.

In this implementation, the terminal device can determine the working mode enabled after the current working mode and whether it is activated in the enabled working mode according to the first indication information received during the inactive time of the current working mode. Exemplarily, when the first indication information indicates that it is not activated in the enabled working mode, the terminal device can skip the working mode, thus facilitating system energy saving.

In a possible implementation, the first indication information is carried in downlink control information DCI.

In this implementation, by extending the existing DCI (ie, DCP or PDCCH-WUS), the first indication information is carried in the existing DCI, which is beneficial to the forward compatibility of the protocol.

In a possible implementation, the first indication information is further used to indicate a value of the number of cycles during which the first working mode or the second working mode lasts.

In this implementation, by indicating the value of the number of periods during which the first working mode or the second working mode lasts through the first indication information, the number of times the first indication information is sent can be reduced, which is beneficial to saving signaling overhead.

In a possible implementation, the method further includes:

Receiving high-layer signaling from the access network device;

Here, the high-level signaling includes a value of the number of cycles during which the first working mode or the second working mode lasts; or, the high-level signaling includes a candidate set of values of the number of cycles during which the first working mode or the second working mode lasts;

The above-mentioned high-level signaling is a radio resource control RRC message or system information.

In this implementation, the value of the number of cycles during which the first working mode or the second working mode lasts is indicated by high-level signaling, so the first indication information does not need to be sent every time, which is beneficial to saving signaling overhead.

In a possible implementation, the first indication information is further used to indicate one or more of the following information:

an identifier of a serving cell group, where the identifier of the serving cell group is used to indicate the serving cell group to which the first indication information is applicable, and each serving cell group includes identifiers of one or more serving cells; or

An identifier of a bandwidth part BWP corresponding to each of the serving cells.

In this implementation mode, the first indication information indicates the identifier of the service cell group and/or the identifier of a bandwidth part BWP corresponding to each service cell, so that the content carried by the first indication information is richer, which can be applicable to carrier aggregation and multi-BWP application scenarios, and is conducive to improving the scope of application of the solution.

In a possible implementation, the method further includes:

Receive an RRC message from the access network device, where the RRC message includes one or more of the following information:

the correspondence between the serving cell and the serving cell group; or,

The BWP corresponding to each of the serving cells is information about an energy-saving BWP.

In this implementation mode, the correspondence between the service cell and the service cell group and/or the information that a BWP corresponding to each service cell is an energy-saving BWP is carried through the RRC message, so that the terminal device can obtain more detailed information in combination with the first indication information, so that the present application can be applied to carrier aggregation and multi-BWP application scenarios, which is conducive to improving the scope of application of the solution.

In a possible implementation, the first indication information is used to indicate enabling the second operating mode;

After receiving the first indication information from the access network device, the method further includes:

receiving, within the activation time of the second working mode, second indication information from the access network device, where the second indication information is used to indicate an identifier of a reference signal;

receiving the reference signal during an inactive time of the second working mode;

Time-frequency synchronization and/or automatic gain control AGC adjustment are performed according to the reference signal.

Under this implementation, when the access network device determines that the number of cycles for which the second working mode lasts is 2, by receiving the second indication information in the first Cell DTX cycle, and then receiving the reference signal indicated by the second indication information before the start time of the second Cell DTX cycle (or within the inactive time of the first Cell DTX cycle), the terminal device is facilitated to perform fast AGC adjustment and time-frequency synchronization.

In a possible implementation, the second indication information is further used to indicate one or more of the following information:

The reference signal is applicable to the valid time; or,

An identifier of a service cell group, wherein the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each service cell group includes identifiers of one or more service cells.

In this implementation, the second indication information indicates the valid time of the reference signal, which can reduce the number of times the second indication information is sent and save signaling overhead. The second indication information indicates the identifier of the serving cell group, making the content carried by the second indication information richer and more flexible.

In a possible implementation, the second indication information is carried in one or more of the following messages:

Media access control element MAC CE, RRC message, or DCI.

In this implementation, the second indication information can be carried in different messages, which improves the applicability of the solution.

In a possible implementation, the first indication information is used to indicate enabling of the second working mode; and the method further includes:

Receive third indication information from the access network device, where the third indication information is used to indicate one or more of the following information:

Cell DTX cycle; or,

Cell DTX On-duration timer; or,

Cell DTX inactivity timer; or,

The start time offset value of the Cell DTX cycle.

In this implementation mode, when the Cell DTX mechanism is used for communication, it is stipulated that the access network device needs to configure Cell DTX related parameters to the terminal device, so as to achieve the alignment of transmission and reception between the terminal device and the access network device, which is beneficial to system energy saving.

In a possible implementation, before receiving the third indication information from the access network device, the method further includes:

Sending auxiliary information to the access network device, where the auxiliary information includes one or more of the following information:

The Cell DTX period expected by the terminal device; or,

the Cell DTX On-duration timer expected by the terminal device; or,

the Cell DTX inactivity Timer expected by the terminal device; or,

The starting time offset value of the Cell DTX cycle expected by the terminal device; or,

The terminal device expects to enter the Cell DTX cycle; or,

The duration of the Cell DTX cycle that the terminal device expects to enter; or,

The terminal device expects to enter the UE DRX cycle; or,

The duration that the terminal device expects to enter the UE DRX cycle.

In this implementation mode, auxiliary information is sent by the terminal device, which allows the access network device to more accurately configure Cell DTX related parameters. For example, a more accurate On duration timer is configured, thereby achieving more efficient system energy saving.

In a possible implementation, before sending the auxiliary information to the access network device, the method further includes:

Receive fourth indication information from the access network device, where the fourth indication information is used to request the terminal device to send the auxiliary information.

In this implementation manner, the access network device may trigger the terminal device to send auxiliary information through the fourth indication information, that is, the access network device may only allow specific terminal devices to send auxiliary information.

In a possible implementation, before sending the auxiliary information to the access network device, the method further includes:

Receive fifth indication information from the access network device, where the fifth indication information is used to indicate one or more of the following information:

The candidate cell DTX period; or,

Candidate cell DTX On-duration timer; or,

Candidate cell DTX inactivity Timer; or,

The start time offset value of the candidate Cell DTX cycle; or,

The duration of the candidate's entry into the Cell DTX period; or,

Candidate duration for entering UE DRX cycle.

In this implementation mode, the access network device can also send candidate values of Cell DTX-related parameters to the terminal device, so that the terminal device can send auxiliary information based on the candidate values from the access network device, thereby making the auxiliary information sent by the terminal device more accurate.

In a second aspect, the present application provides a communication method, which is applied to an access network device, and the method includes:

determining first indication information;

The first indication information is sent to the terminal device, and the first indication information is used to indicate enabling of the first working mode or the second working mode, wherein the first working mode is that the terminal device adopts user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device adopts cell discontinuous transmission Cell DTX to communicate with the access network device.

In a possible implementation, the first indication information is further used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode:

Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal.

In a possible implementation, the first indication information is carried in downlink control information DCI.

In a possible implementation, the first indication information is further used to indicate a value of the number of cycles during which the first working mode or the second working mode lasts.

In a possible implementation, the method further includes:

Sending high-layer signaling to the terminal device;

The high-level signaling includes a value of the number of cycles during which the first working mode or the second working mode continues; or, the high-level signaling includes a candidate set of values of the number of cycles during which the first working mode or the second working mode continues;

The high-level signaling is a radio resource control RRC message or system information.

In a possible implementation, the first indication information is further used to indicate one or more of the following information:

an identifier of a serving cell group, where the identifier of the serving cell group is used to indicate the serving cell group to which the first indication information is applicable, and each serving cell group includes identifiers of one or more serving cells; or

An identifier of a bandwidth part BWP corresponding to each of the serving cells.

In a possible implementation, the method further includes:

Send an RRC message to the terminal device, where the RRC message includes one or more of the following information:

the correspondence between the serving cell and the serving cell group; or,

The BWP corresponding to each of the serving cells is information about an energy-saving BWP.

In a possible implementation, the first indication information is used to indicate enabling the second operating mode;

After sending the first indication information to the terminal device, the method further includes:

Sending second indication information to the terminal device, where the second indication information is used to indicate an identifier of a reference signal;

The reference signal is sent to the terminal device, where the reference signal is used for time-frequency synchronization and/or automatic gain control AGC adjustment.

In a possible implementation, the second indication information is further used to indicate one or more of the following information:

The reference signal is applicable to the valid time; or,

An identifier of a service cell group, wherein the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each service cell group includes identifiers of one or more service cells.

In a possible implementation, the second indication information is carried in one or more of the following messages:

Media access control element MAC CE, RRC message, or DCI.

In a possible implementation, the first indication information is used to indicate enabling of the second working mode; and the method further includes:

Sending third indication information to the terminal device, where the third indication information is used to indicate one or more of the following information:

Cell DTX cycle; or,

Cell DTX On-duration timer; or,

Cell DTX inactivity timer; or,

The start time offset value of the Cell DTX cycle.

In a possible implementation, before sending the third indication information to the terminal device, the method further includes:

Receive auxiliary information from the terminal device, where the auxiliary information includes one or more of the following information:

the Cell DTX period expected by the terminal device; or,

the Cell DTX On-duration timer expected by the terminal device; or,

the Cell DTX inactivity Timer expected by the terminal device; or,

The starting time offset value of the Cell DTX cycle expected by the terminal device; or,

The terminal device expects to enter the Cell DTX cycle; or,

The duration of the Cell DTX cycle that the terminal device expects to enter; or,

The terminal device expects to enter the UE DRX cycle; or,

The duration that the terminal device expects to enter the UE DRX cycle.

In a possible implementation, before receiving the auxiliary information from the terminal device, the method further includes:

Send fourth indication information to the terminal device, where the fourth indication information is used to request the terminal device to send the auxiliary information.

In a possible implementation, before receiving the auxiliary information from the terminal device, the method further includes:

Send fifth indication information to the terminal device, where the fifth indication information is used to indicate one or more of the following information:

The candidate cell DTX period; or,

Candidate cell DTX On-duration timer; or,

Candidate cell DTX inactivity Timer; or,

The start time offset value of the candidate Cell DTX cycle; or,

The duration of the candidate's entry into the Cell DTX period; or,

Candidate duration for entering UE DRX cycle.

In a third aspect, the present application provides a communication device, which is a terminal device, and includes:

A transceiver unit, configured to receive first indication information from an access network device, wherein the first indication information is used to indicate enabling of a first working mode or a second working mode, wherein the first working mode is that the terminal device uses user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device uses cell discontinuous transmission Cell DTX to communicate with the access network device;

A processing unit is used to determine whether to communicate with the access network device in the first working mode or the second working mode according to the first indication information.

In a possible implementation, the first indication information is further used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode:

Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal.

In a possible implementation, when receiving the first indication information from the access network device, the transceiver unit is used to:

During the inactive time of the first working mode or the second working mode, the first indication information is received from the access network device.

In a possible implementation, the first indication information is carried in downlink control information DCI.

In a possible implementation, the first indication information is further used to indicate a value of the number of cycles during which the first working mode or the second working mode lasts.

In a possible implementation, the transceiver unit is further used for:

Receiving high-layer signaling from the access network device;

The high-level signaling includes a value of the number of cycles during which the first working mode or the second working mode continues; or, the high-level signaling includes a candidate set of values of the number of cycles during which the first working mode or the second working mode continues;

The high-level signaling is a radio resource control RRC message or system information.

In a possible implementation, the first indication information is further used to indicate one or more of the following information:

an identifier of a serving cell group, where the identifier of the serving cell group is used to indicate the serving cell group to which the first indication information is applicable, and each serving cell group includes identifiers of one or more serving cells; or

An identifier of a bandwidth part BWP corresponding to each of the serving cells.

In a possible implementation, the transceiver unit is further used for:

Receive an RRC message from the access network device, where the RRC message includes one or more of the following information:

the correspondence between the serving cell and the serving cell group; or,

The BWP corresponding to each of the serving cells is information about an energy-saving BWP.

In a possible implementation, the first indication information is used to indicate enabling the second operating mode;

After receiving the first indication information from the access network device,

The transceiver unit is further configured to receive second indication information from the access network device within the activation time of the second working mode, where the second indication information is used to indicate an identifier of a reference signal;

The transceiver unit is further configured to receive the reference signal during an inactive time of the second working mode;

The processing unit is further used to perform time-frequency synchronization and/or automatic gain control AGC adjustment according to the reference signal.

In a possible implementation, the second indication information is further used to indicate one or more of the following information:

The reference signal is applicable to the valid time; or,

An identifier of a service cell group, wherein the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each service cell group includes identifiers of one or more service cells.

In a possible implementation, the second indication information is carried in one or more of the following messages:

Media access control element MAC CE, RRC message, or DCI.

In a possible implementation, the first indication information is used to indicate enabling of the second working mode; and the transceiver unit is further used to:

Receive third indication information from the access network device, where the third indication information is used to indicate one or more of the following information:

Cell DTX cycle; or,

Cell DTX On-duration timer; or,

Cell DTX inactivity timer; or,

The start time offset value of the Cell DTX cycle.

In a possible implementation, before receiving the third indication information from the access network device, the transceiver unit is further configured to:

Sending auxiliary information to the access network device, where the auxiliary information includes one or more of the following information:

the Cell DTX period expected by the terminal device; or,

the Cell DTX On-duration timer expected by the terminal device; or,

the Cell DTX inactivity Timer expected by the terminal device; or,

The starting time offset value of the Cell DTX cycle expected by the terminal device; or,

The terminal device expects to enter the Cell DTX cycle; or,

The duration of the Cell DTX cycle that the terminal device expects to enter; or,

The terminal device expects to enter the UE DRX cycle; or,

The duration that the terminal device expects to enter the UE DRX cycle.

In a possible implementation, before sending the auxiliary information to the access network device, the transceiver unit is further configured to:

Receive fourth indication information from the access network device, where the fourth indication information is used to request the terminal device to send the auxiliary information.

In a possible implementation, before sending the auxiliary information to the access network device, the transceiver unit is further configured to:

Receive fifth indication information from the access network device, where the fifth indication information is used to indicate one or more of the following information:

The candidate cell DTX period; or,

Candidate cell DTX On-duration timer; or,

Candidate cell DTX inactivity Timer; or,

The start time offset value of the candidate Cell DTX cycle; or,

The duration of the candidate's entry into the Cell DTX period; or,

Candidate duration for entering UE DRX cycle.

In a fourth aspect, the present application provides a communication device, which is an access network device, and includes:

A processing unit, configured to determine first indication information;

The transceiver unit is used to send the first indication information to the terminal device, the first indication information is used to indicate enabling of a first working mode or a second working mode, the first working mode is that the terminal device adopts user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device adopts cell discontinuous transmission Cell DTX to communicate with the access network device.

In a possible implementation, the first indication information is further used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode:

Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal.

In a possible implementation, the first indication information is carried in downlink control information DCI.

In a possible implementation, the first indication information is further used to indicate a value of the number of cycles during which the first working mode or the second working mode lasts.

In a possible implementation, the transceiver unit is further used for:

Sending high-layer signaling to the terminal device;

The high-level signaling includes a value of the number of cycles during which the first working mode or the second working mode continues; or, the high-level signaling includes a candidate set of values of the number of cycles during which the first working mode or the second working mode continues;

The high-level signaling is a radio resource control RRC message or system information.

In a possible implementation, the first indication information is further used to indicate one or more of the following information:

an identifier of a serving cell group, where the identifier of the serving cell group is used to indicate the serving cell group to which the first indication information is applicable, and each serving cell group includes identifiers of one or more serving cells; or

An identifier of a bandwidth part BWP corresponding to each of the serving cells.

In a possible implementation, the transceiver unit is further used for:

Send an RRC message to the terminal device, where the RRC message includes one or more of the following information:

the correspondence between the serving cell and the serving cell group; or,

The BWP corresponding to each of the serving cells is information about an energy-saving BWP.

In a possible implementation, the first indication information is used to indicate enabling the second operating mode;

After sending the first indication information to the terminal device, the transceiver unit is further used to:

Sending second indication information to the terminal device, where the second indication information is used to indicate an identifier of a reference signal;

The reference signal is sent to the terminal device, where the reference signal is used for time-frequency synchronization and/or automatic gain control AGC adjustment.

In a possible implementation, the second indication information is further used to indicate one or more of the following information:

The reference signal is applicable to the valid time; or,

An identifier of a service cell group, wherein the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each service cell group includes identifiers of one or more service cells.

In a possible implementation, the second indication information is carried in one or more of the following messages:

Media access control element MAC CE, RRC message, or DCI.

In a possible implementation, the first indication information is used to indicate enabling of the second working mode; and the transceiver unit is further used to:

Sending third indication information to the terminal device, where the third indication information is used to indicate one or more of the following information:

Cell DTX cycle; or,

Cell DTX On-duration timer; or,

Cell DTX inactivity timer; or,

The start time offset value of the Cell DTX cycle.

In a possible implementation, before sending the third indication information to the terminal device, the transceiver unit is further configured to:

Receive auxiliary information from the terminal device, where the auxiliary information includes one or more of the following information:

The Cell DTX period expected by the terminal device; or,

the Cell DTX On-duration timer expected by the terminal device; or,

the Cell DTX inactivity Timer expected by the terminal device; or,

The starting time offset value of the Cell DTX cycle expected by the terminal device; or,

The terminal device expects to enter the Cell DTX cycle; or,

The duration of the Cell DTX cycle that the terminal device expects to enter; or,

The terminal device expects to enter the UE DRX cycle; or,

The duration that the terminal device expects to enter the UE DRX cycle.

In a possible implementation, before receiving the auxiliary information from the terminal device, the transceiver unit is further configured to:

Send fourth indication information to the terminal device, where the fourth indication information is used to request the terminal device to send the auxiliary information.

In a possible implementation, before receiving the auxiliary information from the terminal device, the transceiver unit is further configured to:

Send fifth indication information to the terminal device, where the fifth indication information is used to indicate one or more of the following information:

The candidate cell DTX period; or,

Candidate cell DTX On-duration timer; or,

Candidate cell DTX inactivity Timer; or,

The start time offset value of the candidate Cell DTX cycle; or,

The duration of the candidate's entry into the Cell DTX period; or,

Candidate duration for entering UE DRX cycle.

In a fifth aspect, the present application provides a communication device, which may be a terminal device, comprising a processor, a transceiver and a memory, wherein the processor, the transceiver and the memory are coupled, and a computer program is stored in the memory; the processor and the transceiver are used to call the computer program in the memory so that the communication device executes a method as described in any one of the first aspects.

In one possible design, the communication device may be a chip that implements the method in the first aspect or a device including a chip.

In the sixth aspect, the present application provides a communication device, which may be an access network device, including a processor, a transceiver and a memory, wherein the processor, the transceiver and the memory are coupled, and a computer program is stored in the memory; the processor and the transceiver are used to call the computer program in the memory so that the communication device executes the method described in any one of the second aspects.

In one possible design, the communication device may be a chip that implements the method in the second aspect or a device including a chip.

In the seventh aspect, the present application provides a communication device, which may be a terminal device, comprising a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement any method described in the first aspect through a logic circuit or by executing code instructions.

In an eighth aspect, the present application provides a communication device, which may be an access network device, comprising a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement a method as described in any one of the second aspects through a logic circuit or by executing code instructions.

In a ninth aspect, the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a computer, the method as described in any one of the first aspects is implemented.

In a tenth aspect, the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a computer, the method described in any one of the second aspects is implemented.

In an eleventh aspect, the present application provides a computer program product. When a computer reads and executes the computer program product, the computer executes any method described in the first aspect.

In a twelfth aspect, the present application provides a computer program product. When a computer reads and executes the computer program product, the computer executes any method described in the second aspect.

In a thirteenth aspect, the present application provides a communication system, which includes the terminal device of the third aspect, the fifth aspect, or the seventh aspect, and the access network device of the fourth aspect, the sixth aspect, or the eighth aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a network architecture of a communication system;

FIG2 is a schematic diagram of a DRX cycle;

FIG3 is a schematic diagram of a DRX scenario based on PDCCH-WUS;

FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

FIG5a is a schematic diagram of a scenario in which a UE receives first indication information during an inactive time provided by an embodiment of the present application;

FIG5b is a schematic diagram of another scenario in which a UE receives first indication information during an inactive time provided by an embodiment of the present application;

FIG6 is a schematic diagram of a scenario in which a UE receives first indication information within an activation time according to an embodiment of the present application;

FIG7 is another schematic diagram of a flow chart of a communication method provided in an embodiment of the present application;

FIG8 is a schematic diagram of a format design of a MAC CE provided in an embodiment of the present application;

FIG9 is a schematic diagram of another format design of MAC CE provided in an embodiment of the present application;

FIG10a is a schematic diagram of sending second indication information and a reference signal provided by an embodiment of the present application;

FIG10b is a schematic diagram of another method of sending second indication information and a reference signal provided in an embodiment of the present application;

FIG11 is another schematic flow chart of a communication method provided in an embodiment of the present application;

FIG12 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG13 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application;

FIG14 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application;

FIG15 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

In the description of this application, unless otherwise specified, "/" means "or", for example, A/B can mean A or B. "And/or" in this article is only a kind of association relationship describing the associated objects, indicating that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone, wherein A and B can be single or multiple. In addition, "at least one" means one or more, and "multiple" means two or more. "One or more of the following:...", "at least one of..." and similar expressions refer to any combination of the listed items, for example, "one or more of the following: A, B, C" can mean: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, A and C exist at the same time, and A, B and C exist at the same time, wherein A, B, C can be single or multiple. "First", "second" and other words do not limit the quantity and execution order, and "first", "second" and other words do not limit them to be different.

In this application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the words "exemplary" or "for example" is intended to present the related concepts in a concrete way.

It should be understood that the "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, wireless-fidelity (WiFi) system, worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR) and future communication systems, etc., without limitation herein.

Please refer to Figure 1, which is a schematic diagram of a network architecture of a communication system. As shown in Figure 1, the communication system may include one or more access network devices 10 (only one is shown) and one or more terminal devices 20 communicating with each access network device 10. Figure 1 is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solution provided in this application.

The terminal device includes a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device can communicate with the core network via a wireless access network, and the terminal device may include a user equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a vehicle-to-everything (V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an Internet of Things (IoT) terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, or a user equipment, etc. For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, a portable, pocket-sized, handheld, or a mobile device with a computer built in, etc. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA), and other devices; it can also include restricted devices, such as devices with low power consumption, or devices with limited storage capacity, or devices with limited computing power, etc.

Access network equipment may include the next-generation base station (generation node B, gNB), evolved node B (evolved node B, eNB), next generation eNB, ng-eNB, wireless backhaul equipment, radio network controller (RNC), node B (node B, NB), base station controller (BSC), base transceiver station (BTS), home evolved node B (HeNB) or (home node B, HNB)), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc., are not limited here.

The access network device may also include one or more centralized units (central unit, CU), one or more distributed units (distributed unit, DU), or one or more CUs and one or more DUs. Exemplarily, the functions of the CU may be implemented by one entity or different entities. For example, the functions of the CU are further divided, that is, the control plane and the user plane are separated and implemented through different entities, namely the control plane CU entity (i.e., CU-CP entity) and the user plane CU entity (i.e., CU-UP entity). The CU-CP entity and the CU-UP entity may be coupled with the DU to jointly complete the functions of the access network device. In this way, some functions of the wireless access network device may be implemented through multiple network function entities. These network function entities may be network elements in hardware devices, or they may be software functions running on dedicated hardware, or they may be virtualized functions instantiated on a platform (e.g., a cloud platform).

In the embodiment of the present application, the device for realizing the function of the access network device may be the access network device itself, or may be a device capable of supporting the access network device to realize the function, such as a chip system or a combination device or component capable of realizing the function of the access network device, and the device may be installed in the access network device. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

The following is an explanation of the relevant technical features involved in the embodiments of the present application. It should be noted that these explanations are intended to make the embodiments of the present application easier to understand and should not be regarded as limiting the scope of protection claimed by the present application.

1. UE discontinuous reception (DRX) mechanism

In order to save power consumption of terminal devices, the UE DRX mechanism, also known as the UE DRX working mode or DRX mechanism, is introduced. The terminal device only turns on the receiver to receive downlink data and signaling during the necessary time period, and turns off the receiver to stop receiving downlink data and signaling during other time periods. In this way, the terminal device does not need to continuously monitor the physical downlink control channel (PDCCH), thereby saving power consumption of the terminal device and extending its use time.

In DRX working mode, the terminal device needs to periodically turn on the receiver to listen to the possible downlink data and signaling. The period of time when the terminal device turns on the receiver and listens to the PDCCH channel is called the activation time (on duration time), or it can also be called the start time or wake-up period or wake-up time or activation period or duration. Among them, the period of time when the terminal device turns off the receiver and does not listen to the PDCCH channel is called the non-activation time (opportunity for DRX), or it can also be called the sleep period or sleep time.

Please refer to FIG. 2, which is a schematic diagram of a DRX cycle. As shown in FIG. 2, the DRX cycle can be divided into an activation time and an inactivation time according to the state. Optionally, in a possible implementation, the DRX cycle includes an activation time, and the DRX cycle may also include an inactivation time, that is, the activation time may not be followed by an inactivation time, but may also be an activation time.

In order to further save the power consumption of terminal equipment, an indication signal is introduced under the current DRX mechanism, which is the physical downlink control channel wake-up signal (PDCCH-WUS). This indication signal can indicate whether the terminal equipment needs to be awakened or whether it can sleep during the subsequent DRX "activation time". PDCCH-WUS is also called downlink control information with cyclic redundancy check scrambled by PS-radio network temporary identity (power saving radio network temporary identity, PS-RNTI) in the standard. The signal form of DCP can be DCI. In other words, the base station sends PDCCH-WUS before the terminal equipment enters the DRX cycle. As shown in Figure 3, if the terminal device detects that the value of the corresponding bit in PDCCH-WUS is 1, the terminal device will be awakened and monitor the PDCCH channel; if the terminal device detects that the value of the corresponding bit in PDCCH-WUS is 0, the terminal device can skip the entire DRX cycle and not monitor any PDCCH channel.

It should be noted that when the wake-up times of multiple UEs served by the base station are different, the base station needs to send downlink control channels to the UEs at different times within the wake-up times of the UEs. However, this method is not conducive to system energy saving or base station energy saving. Based on this, the present application proposes a cell discontinuous transmission (DTX) mechanism.

2. Cell DTX mechanism

For a base station, the base station can serve multiple terminal devices at the same time. When the activation times configured for the multiple terminal devices are not synchronized, the base station needs to send PDCCH frequently, which is not conducive to energy saving of the base station. Therefore, the present application proposes a discontinuous transmission (DTX) mechanism for the base station, or it can also be called a Cell DTX mechanism or a Cell DTX working mode or a Group DTX mechanism or a Group DTX working mode. The essential idea is to align the starting points of the activation times of multiple terminal devices, so that the base station can serve all its terminal devices during the activation time of the Cell DTX cycle, that is, send downlink control channels, such as PDCCH. During the inactive time of the Cell DTX cycle, the common reference signal (such as the synchronization signal block) may not be transmitted at all or may be transmitted less. The Cell DTX mechanism is described in detail below. The Cell DTX mechanism is described in detail below.

Based on this, the embodiments of the present application provide a communication method and related devices that can achieve system energy saving, and discuss the details of the Cell DTX mechanism.

The communication method and related devices provided by this application are described in detail below:

Please refer to Figure 4, which is a flow chart of a communication method provided in an embodiment of the present application. As shown in Figure 4, the communication method includes the following steps S401 to S402. The execution subject of the method shown in Figure 4 can be a terminal device or an access network device. Alternatively, the execution subject of the method shown in Figure 4 can be a chip in a terminal device or an access network device. The following embodiments of the present application are schematically described using terminal devices and access network devices as examples. Among them:

S401: The access network device sends first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the access network device.

In some feasible implementations, the access network device determines the first indication information and may send the first indication information to the terminal device. The first indication information is used to indicate enabling/activating the first working mode or the second working mode, wherein the first working mode is that the terminal device uses the UE DRX mechanism to communicate with the access network device, and the second working mode is that the terminal device uses the Cell DTX mechanism to communicate with the access network device.

Optionally, the first indication information can also be used to indicate whether to perform one or more operations such as monitoring PDCCH, monitoring downlink common signals, or sending uplink physical signals in the first working mode or the second working mode, that is, the first indication information can be used to indicate which working mode is enabled and whether to perform one or more operations such as monitoring PDCCH, monitoring downlink common signals, or sending uplink physical signals in the enabled working mode. For the convenience of description, the following embodiments of the present application are mainly illustrated by taking monitoring PDCCH as an example, for example, the first indication information can be used to indicate whether to monitor PDCCH in the first working mode, or the first indication information can also be used to indicate whether to monitor PDCCH in the second working mode, or it is understood that the first indication information can be used to indicate enabling the first working mode and indicating monitoring PDCCH in the first working mode, or the first indication information can be used to indicate enabling the first working mode and indicating not monitoring PDCCH in the first working mode, or the first indication information can be used to indicate enabling the second working mode and indicating monitoring PDCCH in the second working mode, or the first indication information can be used to indicate enabling the second working mode and indicating not monitoring PDCCH in the second working mode.

The downlink common signal may be, for example, a synchronization signal block (SSB), a tracking reference signal (TRS), a system information block 1 (SIB1), etc., without limitation. The uplink physical signal may be, for example, a random access signal, a channel quality indication (CQI), an SRS, etc., without limitation.

It can be understood that the first indication information can be carried in DCI, where DCI can be understood as DCP or PDCCH-WUS. For example, the length of the first indication information can be 2 bits (bit), wherein 1 bit is used to indicate the first working mode or the second working mode, for example, when the value is "1", it indicates that the first working mode is enabled, when the value is "0", it indicates that the second working mode is enabled, or, when the value is "0", it indicates that the first working mode is enabled, and when the value is "1", it indicates that the second working mode is enabled. The other 1 bit is used to indicate monitoring or not monitoring PDCCH, for example, when the value is "1", it indicates monitoring PDCCH, when the value is "0", it indicates not monitoring PDCCH, or, when the value is "0", it indicates monitoring PDCCH, and when the value is "1", it indicates not monitoring PDCCH.

Generally speaking, for a terminal device, the terminal device can receive the first indication information from the access network device during the inactive time of the current working mode, wherein the current working mode can be the first working mode or the second working mode, that is, the terminal device can receive the first indication information from the access network device during the inactive time of the first working mode or the second working mode. Among them, the working mode enabled indicated by the first indication information can be understood as the working mode after the current working mode of the terminal device, that is, the terminal device will determine the next working mode of the terminal device during the inactive time of the current working mode. It can be understood that the specific position where the terminal device receives the first indication information during the inactive time of the current working mode can be determined by the first start time offset value predefined or preconfigured by the protocol, for example, it can be indicated to the UE by the RRC reconfiguration message. Exemplarily, the first start time offset value can be understood as an offset relative to the start time of a cycle of the current working mode, or the first start time offset value can also be understood as an offset relative to the start time of a cycle of the next working mode after the current working mode. Here, the first start time offset value is mainly understood as an offset relative to the start time of a cycle of the next working mode after the current working mode.

For example, please refer to FIG. 5a, which is a schematic diagram of a scenario in which a UE receives a first indication message during an inactive time according to an embodiment of the present application. It is assumed that the default value of the number of cycles for entering a certain working mode is 1. As shown in FIG. 5a, the position of line 1 represents the receiving position of the first indication message during the inactive time, wherein the receiving position of the first indication message during the inactive time is based on the current working mode. The start time of a cycle of the next working mode after the working mode and the first start time offset value are determined. Among them, ① assuming that the terminal device initially works in the first working mode, and receives the first indication information from the access network device during the inactive time of the first working mode, the first indication information indicates to enable the second working mode and monitor the PDCCH, then after receiving the first indication information, the terminal device enters the second working mode after the cycle of the first working mode ends. ② Receive the first indication information from the access network device during the inactive time of the second working mode, the first indication information indicates to enable the first working mode and monitor the PDCCH, then after receiving the first indication information, the terminal device enters the first working mode after the cycle of the second working mode ends. ③ Receive the first indication information from the access network device during the inactive time of the first working mode, the first indication information indicates to enable the second working mode and monitor the PDCCH, then after receiving the first indication information, the terminal device enters the second working mode after the cycle of the first working mode ends.

It should be noted that, in one implementation, the value of the number of periods during which the first working mode or the second working mode enabled by the first indication information lasts may be predefined in the protocol as a default value, such as a default value of 1 or 2, etc., which is not limited here. Optionally, in another implementation, the value of the number of periods during which the first working mode or the second working mode lasts may also be included/dynamically indicated in the first indication information, that is, the duration of the working mode indicated by it is determined according to the first indication information. Here, if the first indication information indicates that the first working mode is enabled, then the continuous period is the UE DRX period, that is, the DRX period; if the first indication information indicates that the second working mode is enabled, then the continuous period is the CellDTX period.

For example, assuming that the first indication information indicates that PDCCH monitoring is enabled in the first working mode, and the number of cycles indicating the first working mode is continuous is 2, therefore, after the terminal device receives the first indication information, the terminal device can be awakened to receive PDCCH in two consecutive DRX cycles. For another example, assuming that the first indication information indicates that PDCCH monitoring is enabled in the second working mode, and the number of cycles indicating the second working mode is continuous is 3, therefore, after the terminal device receives the first indication information, the terminal device can not monitor PDCCH in the three consecutive CellDTX cycles.

For example, please refer to Figure 5b, which is a schematic diagram of another scenario in which the UE receives the first indication information during the non-activation time provided by an embodiment of the present application. As shown in Figure 5b, the position of line 1 represents the receiving position of the first indication information during the non-activation time, wherein the receiving position of the first indication information during the non-activation time is determined according to the start time of a cycle of the next working mode after the current working mode and the first start time offset value. Among them, ① assuming that the terminal device initially operates in the first working mode, and receives the first indication information from the access network device during the non-activation time of the first working mode, the first indication information indicates to enable the second working mode and monitor the PDCCH, and the number of cycles for which the second working mode lasts is 2, then after receiving the first indication information, the terminal device enters the second working mode after the cycle of the first working mode ends, and continues in the second working mode for 2 Cell DTX cycles. ② Receive the first indication information from the access network device during the inactive time of the second Cell DTX cycle of the second working mode, the first indication information indicates to enable the first working mode and monitor PDCCH, and the number of cycles for which the first working mode lasts is 2. After receiving the first indication information, the terminal device enters the first working mode after the end of the second Cell DTX cycle of the second working mode, and continues in the first working mode for 2 UE DRX cycles.

Optionally, the value of the number of cycles that the first working mode or the second working mode continues may not be carried in the first indication information, but may be carried in high-level signaling, that is, the terminal device may also receive high-level signaling from the access network device, and the high-level signaling includes the value of the number of cycles that the first working mode or the second working mode continues. For example, the value of the number of cycles that the first working mode or the second working mode continues included in the high-level signaling is 2 or 3, etc., which is not limited here.

Optionally, the high-level signaling may also include a candidate set of values for the number of periods during which the first working mode or the second working mode lasts, wherein one candidate set may include multiple (i.e., 2 or more) values, and further, the access network device may indicate through the first indication information which value in the candidate set is the value of the number of periods actually adopted. For example, assuming that the candidate set of values for the number of periods during which the first working mode or the second working mode lasts included in the high-level signaling is S1={2,4,6,8}, then the specific value of the number of periods during which the first working mode or the second working mode lasts may be 2 as indicated by the first indication information. Optionally, the first working mode may correspond to one candidate set, the second working mode may correspond to another candidate set, or the first working mode and the second working mode may correspond to one candidate set, without limitation herein.

Exemplarily, the high-level signaling may be a radio resource control (RRC) message or system information (SI), etc., which is not limited here. For example, the RRC message may be an RRC reconfiguration message, and the system information may be SIB1 and/or other SIBs, etc., which are not limited here.

Optionally, in addition to directly indicating/including the specific value of the number of cycles that the first working mode or the second working mode continues, the first indication information or high-layer signaling may also indicate/include an index corresponding to the value of the number of cycles that the first working mode or the second working mode continues. Therefore, when the terminal device receives the index, it can determine the specific value of the number of cycles that the first working mode or the second working mode continues based on the correspondence between the index and the value of the number of cycles. The above correspondence may be predefined by the protocol or preconfigured by the network. In other words, the first indication information or high-layer signaling may directly or indirectly inform the terminal device of the specific value of the number of cycles that the first working mode or the second working mode continues, which is not limited here. Optionally, assuming that the high-layer signaling includes the first working mode or the second working mode. The candidate set of values for the number of cycles in which the second working mode lasts is S1 = {2, 4, 6, 8}, so the specific value of the number of cycles in which the first working mode or the second working mode lasts can be indicated according to the first indication information as 2. For example, the length of the first indication information is 2 bits, and when the value of the 2 bits is "00", the specific value of the number of cycles in which the first working mode or the second working mode lasts is 2.

Optionally, the first indication information may also include/be used to indicate one or more of the following information: an identifier of a service cell group, where the identifier of the service cell group is used to indicate the service cell group to which the first indication information applies, wherein each service cell group includes identifiers of one or more service cells; optionally, the first indication information may also directly include an identifier of the service cell to which the first indication information applies; or, an identifier of a bandwidth part BWP corresponding to each service cell.

Among them, the number of service cell group identifiers indicated by the first indication information can be one or more. Exemplarily, one or more service cell groups to which the first indication information applies can be indicated by means of a bitmap. For example, assuming that there are 6 service cell groups in total, namely service cell group 1 to service cell group 6, wherein the first bit from left to right in the bitmap corresponds to service cell group 1, the second bit corresponds to service cell group 2, the third bit corresponds to service cell group 3, the fourth bit corresponds to service cell group 5, and the sixth bit corresponds to service cell group 6. Assuming that the first indication information is 100001, it means that the first indication information applies to service cell group 1 and service cell group 6.

Optionally, the correspondence between the serving cell and the serving cell group can be configured through an RRC message, that is, the identifiers of one or more serving cells included in each serving cell group are configured by an RRC message, for example, the RRC message can be an RRC reconfiguration message, etc., which is not limited here. Exemplarily, a possible configuration of the correspondence between the serving cell and the serving cell group is as follows. Among them, maxNrofServingCells is the maximum number of cells that can be included in a serving cell group, and ServCellIndex is the serving cell identifier.

Cell-List1 SEQUENCE(SIZE(1..maxNrofServingCells))OF ServCellIndex,

Cell-List2 SEQUENCE(SIZE(1..maxNrofServingCells))OF ServCellIndex,

Cell-List3 SEQUENCE(SIZE(1..maxNrofServingCells))OF ServCellIndex,….

Optionally, the RRC message may further include information that a BWP corresponding to each serving cell is an energy-saving BWP, or it is understood that the RRC message may further include information that the BWP is an energy-saving BWP.

Optionally, the first indication information may also include information such as identifiers of one or more reference signals, which is not limited here.

Optionally, in some feasible implementations, the terminal device may also receive the first indication information from the access network device within the activation time of the current working mode, wherein the current working mode may be the first working mode or the second working mode, that is, the terminal device may receive the first indication information from the access network device within the activation time of the first working mode or the second working mode. The working mode enabled indicated by the first indication information may be understood as the working mode after the current working mode of the terminal device, that is, the terminal device will determine the next working mode of the terminal device within the activation time of the current working mode.

For example, please refer to FIG. 6, which is a schematic diagram of a scenario in which a UE receives the first indication information within the activation time provided by an embodiment of the present application. It is assumed that the default value of the number of cycles for entering a certain working mode is 1. As shown in FIG. 6, the position of line 1 represents the receiving position of the first indication information within the activation time. It is assumed that ① the terminal device initially operates in the first working mode, and receives the first indication information from the access network device within the activation time of the first working mode, and the first indication information indicates that the second working mode is enabled and the PDCCH is monitored. Then, after the terminal device receives the first indication information, after the cycle of the first working mode ends, it enters the second working mode. ② The first indication information from the access network device is received within the activation time of the second working mode, and the first indication information indicates that the first working mode is enabled and the PDCCH is monitored. Then, after the terminal device receives the first indication information, after the cycle of the second working mode ends, it enters the first working mode. ③ The first indication information from the access network device is received within the activation time of the first working mode, and the first indication information indicates that the second working mode is enabled and the PDCCH is monitored. Then, after the terminal device receives the first indication information, after the cycle of the first working mode ends, it enters the second working mode.

For ease of understanding, the embodiments of the present application are mainly understood by taking the example of a terminal device receiving a first indication message from an access network device during an inactive time of a current working mode.

S402. The terminal device determines to use the first working mode or the second working mode to communicate with the access network device according to the first indication information.

In some feasible implementations, if the first indication information indicates enabling the first working mode, then the terminal device communicates with the access network device using the first working mode; if the first indication information indicates enabling the second working mode, then the terminal device communicates with the access network device using the second working mode.

In an embodiment of the present application, by extending DCI, it is possible to indicate which working mode the terminal device enters (for example, Cell DTX working mode or UE DRX working mode) and whether to monitor PDCCH in the entered working mode. This method of indicating two different energy-saving modes at the same time through one DCI is more flexible and can achieve the purpose of system energy saving.

It should be noted that between two consecutive Cell DTX cycles, the access network device does not send a reference signal, such as a reference signal that may be an SSB, a channel state information reference signal (Channel-state information reference signal, CSI-RS), or a TRS, etc., so the terminal The terminal device can only detect the reference signal sent by the access network device after the start time of the second Cell DTX cycle to perform automatic gain control (AGC) adjustment, time-frequency synchronization, channel-state information (CSI) feedback, etc., but this will cause additional activation delay, or access delay, or scheduling delay. Therefore, in order to achieve fast AGC adjustment and time-frequency synchronization, the embodiment of the present application proposes that the access network device can indicate the identifier of one or more reference signals to the terminal device in advance (that is, when the access network device determines that the next cycle is still a Cell DTX cycle in the current Cell DTX cycle, the access network device indicates the identifier of the reference signal to the terminal device), so that the terminal device receives and measures the corresponding reference signal before the start time of the second Cell DTX cycle to achieve time-frequency synchronization and AGC adjustment.

Exemplarily, the access network device may indicate that after the current Cell DTX cycle, the next one is still in the Cell DTX cycle in the following manner:

1. The access network device does not send a command to the terminal device to switch to the UE DRX cycle during the activation time of the current Cell DTX cycle, that is, the access network device does not send the first indication information to enable the second working mode to the terminal device; or,

2. The Cell DTX configuration of the access network equipment is periodic. When UE DRX overlaps or conflicts with Cell DTX, Cell DTX shall prevail.

3. During the inactive time or active time of the current Cell DTX cycle, the access network device sends the first indication information to enable the second working mode to the terminal device.

Please refer to Figure 7, which is another flow chart of the communication method provided by the embodiment of the present application. As shown in Figure 7, the communication method includes the following steps S701 to S703. The execution subject of the method shown in Figure 7 can be a terminal device or an access network device. Alternatively, the execution subject of the method shown in Figure 7 can be a chip in a terminal device or an access network device. The following embodiments of the present application are schematically illustrated using terminal devices and access network devices as examples. It should be noted that Figure 7 is applicable to the scenario where the access network device indicates that after the current Cell DTX cycle, the next one is still in the Cell DTX cycle (that is, two consecutive Cell DTX cycles), or it can be understood as a scenario where the access network device indicates that the number of cycles for which the second working mode continues is 2. Among them:

S701: The access network device sends second indication information to the terminal device. Correspondingly, the terminal device receives the second indication information from the access network device.

In some feasible implementations, the terminal device receiving the second indication information from the access network device can be specifically understood as: receiving the second indication information from the access network device within the activation time of the second working mode, and the second working mode is that the terminal device uses Cell DTX to communicate with the access network device. Here, since the number of cycles that the second working mode lasts is 2, the activation time of the second working mode here should specifically be the activation time of the first Cell DTX cycle in two consecutive Cell DTX cycles.

Optionally, in some feasible implementations, the terminal device may also receive the second indication information from the access network device during the inactive time of the second working mode. That is, the terminal device may receive the second indication information from the access network device during the inactive time of the first Cell DTX cycle in two consecutive Cell DTX cycles. The specific location where the terminal device receives the first indication information during the inactive time of the first Cell DTX cycle can be determined by a second start time offset value predefined or preconfigured by the protocol, for example, it can be indicated to the UE by an RRC reconfiguration message. Exemplarily, the second start time offset value can be understood as an offset relative to the start time of the first Cell DTX cycle in two consecutive Cell DTX cycles, or the second start time offset value can also be understood as an offset relative to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles. Here, the second start time offset value is mainly understood as an offset relative to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles.

The second indication information is used to indicate a reference signal, and it is understandable that the number of reference signals may be one or more. Generally speaking, a reference signal may be marked by a reference signal identifier. That is to say, the second indication information indicates one or more reference signals, and it may be understood that the second indication information is used to indicate the identifier of one or more reference signals. Exemplarily, the second indication information may be used to indicate the identifier of a tracking reference signal (tracking reference signal ID, TRS ID). The length of the reference signal identifier may be, for example, 8 bits, etc., which is not limited here.

Exemplarily, the identifier of the reference signal can be indicated by means of a bitmap. For example, assuming that there are 10 reference signal identifiers (i.e., the total number of reference signals is 10), which are reference signal identifiers 1 to reference signal identifiers 10, respectively, wherein the first bit from left to right in the bitmap corresponds to reference signal identifier 1, the second bit corresponds to reference signal identifier 2, the third bit corresponds to reference signal identifier 3, and so on, the tenth bit corresponds to reference signal identifier 10. Assuming that the identifier of the reference signal indicated by the second indication information is 1100000111, it means that the identifier of the reference signal of the second indication information is reference signal identifier 1, reference signal identifier 2, reference signal identifier 8, reference signal identifier 9 and reference signal identifier 10. Optionally, the correspondence between each bit in the bitmap and the identifier of the reference signal can be configured through an RRC message. An example of a possible correspondence is as follows:

Alternatively, the corresponding relationship may also be predefined by the protocol (for example, a one-to-one correspondence between bits and the ascending/descending order of the identifiers of the reference signals), which is not limited here.

Optionally, the second indication information may further include/indicate one or more of the following information:

The valid time/validity period/duration to which the reference signal is applicable; or, the identifier of the service cell group, where the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable (i.e., indicating that the access network device will send a reference signal on the cell included in the corresponding service cell group), each service cell group includes the identifiers of one or more service cells, and optionally, the second indication information may also directly include the identifier of the service cell to which the second indication information is applicable; or, the identifier of a bandwidth part BWP corresponding to each service cell (i.e., the access network device will send a reference signal on the corresponding BWP).

Among them, the effective time can be in units of cell DTX cycles, that is, the effective time is the number of cell DTX cycles.

Among them, the number of service cell group identifiers indicated by the second indication information can be one or more. Exemplarily, one or more service cell groups to which the second indication information applies can be indicated by means of a bitmap. For example, assuming that there are a total of 6 service cell groups, namely service cell group 1 to service cell group 6, wherein the first bit from left to right in the bitmap corresponds to service cell group 1, the second bit corresponds to service cell group 2, the third bit corresponds to service cell group 3, the fourth bit corresponds to service cell group 5, and the sixth bit corresponds to service cell group 6. Assuming that the second indication information is 000001, it means that the second indication information applies to service cell group 6. Optionally, the correspondence between each bit in the bitmap and the identifier of the service cell group can be configured through an RRC message. A possible service cell and service cell configuration relationship is shown below, wherein maxNrofServingCells is the maximum number of cells that can be included in a service cell group, and ServCellIndex is the service cell identifier.

Cell-List1 SEQUENCE(SIZE(1..maxNrofServingCells))OF ServCellIndex,

Cell-List2 SEQUENCE(SIZE(1..maxNrofServingCells))OF ServCellIndex,

Cell-List3 SEQUENCE(SIZE(1..maxNrofServingCells))OF ServCellIndex,….

Alternatively, the corresponding relationship may also be predefined by the protocol (eg, a one-to-one correspondence between the bits and the ascending/descending order of the identifiers of the serving cell groups), which is not limited here.

Optionally, the correspondence between the service cell and the service cell group can be configured through an RRC message, that is, the identifiers of one or more service cells included in each service cell group are configured by an RRC message, for example, the RRC message can be an RRC reconfiguration message, etc., which is not limited here. Optionally, the RRC message can also include information that a BWP corresponding to each service cell is an energy-saving BWP, or it is understood that the RRC message can also include information that the BWP is an energy-saving BWP.

Exemplarily, the second indication information may be carried in one or more of the following messages: a medium access control element (MAC CE), an RRC message, or a DCI. For example, the RRC message may be an RRC reconfiguration message, etc., which is not limited here.

Exemplarily, please refer to Figure 8, which is a schematic diagram of the format design of a MAC CE provided in an embodiment of the present application. As shown in Figure 8, each row represents 1 byte, that is, 8 bits. Wherein, R represents a reserved field, and Ci represents a service cell group whose identification number is i, where i = 0, 1, 2, 3, 4, 5, 6. Wherein, when the value of Ci is "1", it indicates that the service cell group is a service cell group to which the second indication information is applicable; when the value of Ci is "0", it indicates that the service cell group is not a service cell group to which the second indication information is applicable. Wherein, the reference signal identification may occupy 8 bits, and the MAC CE may include multiple reference signal identifications, such as reference signal identification 1, reference signal identification 2, ..., reference signal identification n in Figure 8.

In another example, as shown in FIG8 , each row represents 1 byte, that is, 8 bits. R represents a reserved field, and Ci represents a service cell whose service cell identifier is i, where i=0, 1, 2, 3, 4, 5, 6. When the value of Ci is "1", it indicates that the service cell is a service cell to which the second indication information is applicable; when the value of Ci is "0", it indicates that the service cell is not a service cell to which the second indication information is applicable. The reference signal identifier may occupy 8 bits, and the MAC CE may include multiple reference signal identifiers, such as reference signal identifier 1, reference signal identifier 2, ..., reference signal identifier n in FIG8 .

In another example, please refer to Figure 9, which is a schematic diagram of the format design of another MAC CE provided in an embodiment of the present application. As shown in Figure 9, each row represents 1 byte, that is, 8 bits. Among them, R represents a reserved field, the Serving cell ID field is used to carry the identifier of the serving cell to which the second indication information is applicable, and the BWP ID field is used to carry the identifier of the BWP to which the second indication information is applicable. Optionally, it can also instruct the UE to switch to the BWP corresponding to the BWP ID in the next Cell DTX, and the base station sends a reference signal on the BWP. Among them, the reference signal identifier can occupy 8 bits, and the MAC CE may include multiple reference signal identifiers, such as reference signal identifier 1, reference signal identifier 2, ..., reference signal identifier n in Figure 9.

Optionally, the correspondence between the serving cell and the serving cell group may be configured via an RRC message, that is, the identifiers of one or more serving cells included in each serving cell group are configured via an RRC message, for example, the RRC message may be an RRC reconfiguration message, etc., which is not limited here. The RRC message may also include information that a BWP corresponding to each serving cell is an energy-saving BWP, or it may be understood that the RRC message may also include information that the BWP is an energy-saving BWP. Optionally, the maximum number of reference signals (i.e., the total number of reference signals) may also be configured via an RRC message (e.g., an RRC reconfiguration message).

S702: The access network device sends a reference signal to the terminal device. Correspondingly, the terminal device receives the reference signal from the access network device.

In some implementations, the terminal device receiving the reference signal from the access network device can be understood as: receiving the reference signal from the access network device during the inactive time of the second working mode, and the second working mode is that the terminal device uses Cell DTX to communicate with the access network device. Here, since the number of cycles for which the second working mode lasts is 2, the inactive time of the second working mode here should specifically be the inactive time of the first Cell DTX cycle in two consecutive Cell DTX cycles. Optionally, the terminal device receiving the reference signal from the access network device can also be understood as: receiving the reference signal from the access network device before the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles.

The reference signal may be, for example, SSB, CSI-RS or TRS, etc., which is not limited here. For ease of understanding, the following embodiments of the present application are mainly described by taking the reference signal as TRS as an example.

It should be noted that the specific position of the terminal device receiving the reference signal from the access network device during the inactive time of the first Cell DTX cycle can be determined by a third start time offset value predefined or preconfigured by the protocol, for example, it can be indicated to the UE by an RRC reconfiguration message. Exemplarily, the third start time offset value can be understood as an offset relative to the start time of the first Cell DTX cycle in two consecutive Cell DTX cycles, or the third start time offset value can also be understood as an offset relative to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles. Here, the third start time offset value is mainly understood as an offset relative to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles.

It should be noted that if the second indication information is also received during the inactive time of the first Cell DTX cycle, then the second indication information needs to be received before the reference signal.

S703: The terminal device performs time-frequency synchronization and/or AGC adjustment according to the reference signal.

In some feasible implementations, the terminal device may perform time-frequency synchronization and/or AGC adjustment by measuring a reference signal sent by the access network device.

Exemplarily, please refer to FIG. 10a, which is a schematic diagram of sending a second indication information and a reference signal provided in an embodiment of the present application. As shown in FIG. 10a, it is assumed that there are UE1, UE2 and UE3, wherein the position of line 2 represents the receiving position of the second indication information in the activation time, and the position of line 3 represents the receiving position of the reference signal in the non-activation time, wherein the receiving position of the reference signal in the non-activation time is determined according to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles, and the third start time offset value. Among them, it is assumed that the working modes of the terminal device are first the first working mode, and the number of cycles lasting the first working mode is 1 (i.e., 1 UE DRX cycle), and then switch to the second working mode, and the number of cycles lasting the second working mode is 2 (i.e., 2 CellDTX cycles), and finally switch to the first working mode, and the number of cycles lasting the first working mode is 1 (i.e., 1 UE DRX cycle), then within the activation time of the first CellDTX cycle of the two CellDTX cycles, the terminal device receives the second indication information from the access network device, and the second indication information indicates the identification of the reference signal, and then within the inactive time of the first CellDTX cycle or before the start time of the second CellDTX cycle of the two CellDTX cycles, receives the reference signal from the access network device, and performs time-frequency synchronization and/or AGC adjustment according to the measurement result of the reference signal.

As another example, please refer to Figure 10b, which is another schematic diagram of sending the second indication information and the reference signal provided in an embodiment of the present application. As shown in Figure 10b, it is assumed that there are UE1, UE2 and UE3, wherein the position of line 2 represents the receiving position of the second indication information during the non-activation time, and the position of line 3 represents the receiving position of the reference signal during the non-activation time. Among them, the receiving position of the second indication information during the non-activation time is determined according to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles, and the second start time offset value, and the receiving position of the reference signal during the non-activation time is determined according to the start time of the second Cell DTX cycle in two consecutive Cell DTX cycles, and the third start time offset value. Among them, it is assumed that the working modes of the terminal device are first the first working mode, and the number of cycles lasting the first working mode is 1 (i.e., 1 UE DRX cycle), and then switch to the second working mode, and the number of cycles lasting the second working mode is 2 (i.e., 2 CellDTX cycles), and finally switch to the first working mode, and the number of cycles lasting the first working mode is 1 (i.e., 1 UE DRX cycle), then during the inactive time of the first CellDTX cycle of the two CellDTX cycles, the terminal device receives the second indication information from the access network device, and the second indication information indicates the identification of the reference signal, and then during the inactive time of the first CellDTX cycle or before the start time of the second CellDTX cycle of the two CellDTX cycles, receives the reference signal from the access network device, and performs time-frequency synchronization and/or AGC adjustment according to the measurement result of the reference signal.

In an embodiment of the present application, when the terminal device is continuously in a Cell DRX cycle, the base station may configure the terminal device to measure a reference signal in the previous Cell DRX cycle, so that the terminal device performs AGC adjustment, time-frequency synchronization, and/or fast uplink/downlink transmission based on the measured reference signal before the start of a subsequent Cell DRX cycle, thereby reducing delays.

Please refer to Figure 11, which is another flow chart of the communication method provided in the embodiment of the present application. As shown in Figure 11, the communication method includes the following steps S1101 to S1103. The execution subject of the method shown in Figure 11 can be a terminal device or an access network device. Alternatively, the execution subject of the method shown in Figure 11 can be a chip in a terminal device or an access network device. The following embodiments of the present application are schematically described using terminal devices and access network devices as examples. Among them:

S1101: The access network device sends third indication information to the terminal device. Correspondingly, the terminal device receives the third indication information from the access network device.

In some feasible implementations, when the access network device determines to enable the second working mode, i.e., Cell DTX, the access network device may send Cell DTX configuration information, i.e., third indication information, to the terminal device, and the third indication information is used to configure parameters related to Cell DTX. Exemplarily, the third indication information is used to indicate one or more of the following information: Cell DTX cycle; Cell DTX On-duration timer; Cell DTX inactivity timer; or, the start time offset value of the Cell DTX cycle.

The Cell DTX cycle can be the duration of the Cell DTX cycle, wherein the Cell DTX cycle can include the activation time of the Cell, and optionally, the Cell DTX cycle can also include the inactivation time of the Cell. The Cell DTX On-duration timer is a continuous timer, which can be understood as the duration after the UE wakes up, and is used to monitor the PDCCH. When the UE successfully decodes the PDCCH, the UE will start the inactivity timer. The Cell DTX inactivity timer is a deactivation timer, which can be understood as the duration of the UE continuously monitoring the PDCCH since the last successful decoding of the PDCCH. The start time offset value of the Cell DTX cycle can be understood as the time offset value of the starting/initial Cell DTX cycle relative to the system frame, for example, in milliseconds (ms). Or the time offset value relative to the system subframe, in symbol length.

Optionally, the third indication information is further used to indicate one or more of the following information: an identifier of a service cell group, the identifier of the service cell group is used to indicate the service cell group to which the third indication information applies, and the service cell group includes identifiers of one or more service cells; an identifier of a bandwidth part BWP corresponding to each service cell; or information that a BWP corresponding to each service cell is an energy-saving BWP. It should be noted that service cells belonging to the same service cell group can generally have the same configuration and, based on the indication of the access network device, simultaneously enter/activate Cell DTX; or leave/deactivate Cell DTX.

Optionally, the third indication information may also include an indication of whether to enter the energy-saving BWP, for example, indicated by 1 bit in the third indication information, when the value is "0", it indicates entering the energy-saving BWP, and when the value is "1", it indicates not entering the energy-saving BWP. Optionally, the third indication information may not include an indication of whether to enter the energy-saving BWP. When the third indication information includes the identifier of the energy-saving BWP, it indicates automatic jump to the energy-saving BWP.

Optionally, when the terminal device is in the inactive time of the Cell DTX cycle, the terminal device may not transmit sounding reference signal (SRS)/CSI/uplink shared channel (UL-SCH)/random access channel (RACH)/physical uplink control channel (PUCCH), etc. Optionally, the terminal device may not monitor the physical downlink control channel (PDCCH) and/or monitor the downlink common signal and/or send the uplink physical signal, etc.

Optionally, in some feasible implementation manners, before the access network device sends the third indication information to the terminal device, the following steps are further included:

S1102: The terminal device sends auxiliary information to the access network device. Correspondingly, the access network device receives the auxiliary information from the terminal device.

Among them, the auxiliary information includes one or more of the following information: the Cell DTX cycle expected by the terminal device, the Cell DTX On-duration timer expected by the terminal device, the Cell DTX inactivity Timer expected by the terminal device, the start time offset value of the Cell DTX cycle expected by the terminal device, the Cell DTX cycle expected by the terminal device, the duration of the Cell DTX cycle expected by the terminal device, the UE DRX cycle expected by the terminal device, or the duration of the UE DRX cycle expected by the terminal device. In other words, the terminal device can report some configurations expected by the terminal device to the access network device in the auxiliary information, so after the access network device receives the auxiliary information, it can configure the third indication information for the terminal device according to the auxiliary information. It should be noted that this method of sending auxiliary information through the terminal device is conducive to the base station to configure Cell DTX-related parameters more accurately, thereby achieving more efficient system and base station energy saving.

For example, the terminal device reports the Cell DTX cycle that the terminal device expects and the duration of the Cell DTX cycle that the terminal device expects to enter, so that the base station can determine the final Cell DTX cycle and Cell DTX duration.

For another example, the terminal device reports the starting time offset value of the Cell DTX period that the terminal device expects, so that the base station can determine the final time offset value and align the time offset values of all UEs.

Optionally, in some feasible implementation manners, before the terminal device sends the auxiliary information to the access network device, the following steps are further included:

S1103: The access network device sends fourth indication information to the terminal device. Correspondingly, the terminal device receives the fourth indication information from the access network device.

The fourth indication information is used to request/trigger/indicate permission for the terminal device to send auxiliary information. That is, the terminal device sends the auxiliary information only after receiving the fourth indication information. The fourth indication information can be carried in an RRC message (e.g., an RRC reconfiguration message) or system information.

Optionally, the access network device may also send fifth indication information to the terminal device, and accordingly, the terminal device receives the fifth indication information from the access network device, wherein the fifth indication information is used to indicate one or more of the following information: a candidate cell DTX cycle, a candidate cell DTX On-duration timer, a candidate cell DTX inactivity Timer, a candidate start time offset value of the Cell DTX cycle, a candidate duration of entering the Cell DTX cycle, or a candidate duration of entering the UE DRX cycle. Therefore, the terminal device may determine the auxiliary information including what contents should be sent to the access network device based on the candidate values included in the received fourth indication information. That is, the candidate cell DTX cycle includes the Cell DTX cycle expected by the terminal device, the candidate cell DTX On-duration timer includes the Cell DTX On-duration timer expected by the terminal device, the candidate cell DTX inactivity Timer includes the Cell DTX inactivity Timer expected by the terminal device, the candidate start time offset value of the Cell DTX cycle includes the start time offset value of the Cell DTX cycle expected by the terminal device, the candidate duration of entering the Cell DTX cycle includes the duration of entering the Cell DTX cycle expected by the terminal device, or, the candidate duration of entering the UE DRX cycle includes the duration of entering the UE DRX cycle expected by the terminal device.

It should be noted that the number of candidate values of each information indicated by the fifth indication information may be one or more, for example, the value of the candidate cell DTX cycle may be one or more, and for another example, the value of the candidate cell DTX On-duration timer may also be one or more. It is understandable that if the number of candidate values of the information indicated by the fifth indication information is multiple, the multiple candidate values may be embodied in a list or a set, which is not limited here.

It should be noted that the fourth indication information and the fifth indication information may be the same indication information, or the fourth indication information and the fifth indication information may be different indication information, which is not limited here.

Optionally, in some feasible implementations, the terminal device may also send capability information to the access network device. Accordingly, the access network device receives the capability information from the terminal device. The capability information includes one or more of the following capabilities supported by the terminal device: the capability to support CellDTX, the capability to support the measurement of reference signals under CellDTX, or the capability to support the reception of the first indication information. Therefore, the access network device may only send the first indication information to the terminal device that supports the relevant capabilities.

In the embodiment of the present application, when the Cell DTX mechanism is used for communication, the specific application of the terminal device in BWP and carrier aggregation is specified, thereby realizing the system support for multiple BWP and carrier aggregation. Optionally, by sending auxiliary information through the terminal device, the access network device can configure Cell DTX related parameters more accurately, such as configuring a more accurate On duration timer, to achieve more efficient system energy saving.

It should be noted that the numbering sequence of the steps in the embodiments of the present application does not represent the execution order of the steps, which is determined according to the actual application scenario and is not limited here.

It should be noted that different embodiments or some steps in different embodiments in the present application can be combined with each other to form a new embodiment. It should be noted that, if there is no special explanation and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referenced to each other. For example, when Figure 4 is combined with Figure 7 as a new embodiment, step S701 can be executed after step S401, and the current working mode of the terminal device in step S401 can be the second working mode, and the first indication information is used to indicate enabling the second working mode, etc. For another example, when Figure 4 is combined with Figure 11 as a new embodiment, step S1101 can be after step S401, or step S1101 can also be executed before step S401, etc., without limitation here.

The communication device provided in the present application will be described in detail below with reference to FIG. 12 to FIG. 15 .

Please refer to Figure 12, which is a structural diagram of a communication device provided in an embodiment of the present application. The communication device shown in Figure 12 can be used to perform part or all of the functions of the terminal device in the method embodiments described in Figures 4 to 11 above. The device can be a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device. Among them, the communication device can also be a chip system. The communication device shown in Figure 12 may include a transceiver unit 1201 and a processing unit 1202. Among them, the processing unit 1202 is used to perform data processing. The transceiver unit 1201 integrates a receiving unit and a sending unit. The transceiver unit 1201 can also be called a communication unit. Alternatively, the transceiver unit 1201 can also be split into a receiving unit and a sending unit. The processing unit 1202 and the transceiver unit 1201 below are the same, and will not be repeated below. Among them:

The transceiver unit 1201 is used to receive first indication information from the access network device, where the first indication information is used to indicate enabling of a first working mode or a second working mode, where the first working mode is that the terminal device uses user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device uses cell discontinuous transmission Cell DTX to communicate with the access network device;

The processing unit 1202 is used to determine whether to communicate with the access network device in the first working mode or the second working mode according to the first indication information.

In a possible implementation, the first indication information is further used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode:

Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal.

In a possible implementation, when receiving the first indication information from the access network device, the transceiver unit 1201 is used to:

During the inactive time of the first working mode or the second working mode, the first indication information is received from the access network device.

In a possible implementation, the first indication information is carried in downlink control information DCI.

In a possible implementation, the first indication information is also used to indicate a value of the number of cycles during which the first working mode or the second working mode lasts.

In a possible implementation, the transceiver unit 1201 is further configured to:

Receiving high-level signaling from the above access network equipment;

The above-mentioned high-level signaling includes a value of the number of cycles during which the above-mentioned first working mode or the above-mentioned second working mode continues; or the above-mentioned high-level signaling includes a candidate set of values of the number of cycles during which the above-mentioned first working mode or the above-mentioned second working mode continues;

The above-mentioned high-level signaling is a radio resource control RRC message or system information.

In a possible implementation, the first indication information is further used to indicate one or more of the following information:

an identifier of a serving cell group, the identifier of the serving cell group being used to indicate the serving cell group to which the first indication information applies, each serving cell group including identifiers of one or more serving cells; or

An identifier of a bandwidth part BWP corresponding to each of the above service cells.

In a possible implementation, the transceiver unit 1201 is further configured to:

Receive an RRC message from the access network device, where the RRC message includes one or more of the following information:

the correspondence between the serving cell and the serving cell group; or,

The BWP corresponding to each of the above-mentioned serving cells is information of energy-saving BWP.

In a possible implementation, the first indication information is used to indicate enabling the second working mode;

After receiving the first indication information from the access network device,

The transceiver unit 1201 is further configured to receive second indication information from the access network device within the activation time of the second working mode, where the second indication information is used to indicate an identifier of a reference signal;

The transceiver unit 1201 is further configured to receive the reference signal during the inactive time of the second working mode;

The processing unit 1202 is further configured to perform time-frequency synchronization and/or automatic gain control AGC adjustment according to the reference signal.

In a possible implementation, the second indication information is further used to indicate one or more of the following information:

The validity period during which the above reference signal applies; or,

The identifier of the service cell group, the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each of the service cell groups includes the identifiers of one or more service cells.

In a possible implementation, the second indication information is carried in one or more of the following messages:

Media access control element MAC CE, RRC message, or DCI.

In a possible implementation, the first indication information is used to indicate enabling the second working mode; and the transceiver unit 1201 is further used to:

Receive third indication information from the access network device, where the third indication information is used to indicate one or more of the following information:

Cell DTX cycle; or,

Cell DTX On-duration timer; or,

Cell DTX inactivity timer; or,

The start time offset value of the Cell DTX cycle.

In a possible implementation, before receiving the third indication information from the access network device, the transceiver unit 1201 is further configured to:

Send auxiliary information to the access network device, where the auxiliary information includes one or more of the following information:

The Cell DTX period expected by the above terminal device; or,

the Cell DTX On-duration timer expected by the above terminal device; or,

the Cell DTX inactivity Timer expected by the above terminal device; or,

The start time offset value of the Cell DTX cycle expected by the above terminal device; or,

The above terminal device expects to enter the Cell DTX cycle; or,

the duration of the Cell DTX period that the terminal device expects to enter; or,

The above terminal device expects to enter the UE DRX cycle; or,

The duration that the above terminal device expects to enter the UE DRX cycle.

In a possible implementation, before sending the auxiliary information to the access network device, the transceiver unit 1201 is further configured to:

Receive fourth indication information from the access network device, where the fourth indication information is used to request the terminal device to send the auxiliary information.

In a possible implementation, before sending the auxiliary information to the access network device, the transceiver unit 1201 is further configured to:

Receive fifth indication information from the access network device, where the fifth indication information is used to indicate one or more of the following information:

The candidate cell DTX period; or,

Candidate cell DTX On-duration timer; or,

Candidate cell DTX inactivity Timer; or,

The start time offset value of the candidate Cell DTX cycle; or,

The duration of the candidate's entry into the Cell DTX period; or,

Candidate duration for entering UE DRX cycle.

For other possible implementations of the communication device, reference may be made to the relevant descriptions of the terminal device in the method embodiments corresponding to FIGS. 4 to 11 above, which will not be elaborated here.

Please refer to Figure 13, which is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device shown in Figure 13 can be used to perform some or all of the functions of the network device in the method embodiments described in Figures 4 to 11 above. For example, the network device is specifically an access network device. The device can be a network device, or a device in a network device, or a device that can be used in combination with a network device. Among them, the communication device can also be a chip system. The communication device shown in Figure 13 may include a transceiver unit 1301 and a processing unit 1302. Among them:

The processing unit 1302 is configured to determine first indication information;

The transceiver unit 1301 is used to send the above-mentioned first indication information to the terminal device, and the above-mentioned first indication information is used to indicate enabling of the first working mode or the second working mode. The above-mentioned first working mode is that the above-mentioned terminal device adopts user equipment discontinuous reception UE DRX to communicate with the above-mentioned access network device, and the above-mentioned second working mode is that the above-mentioned terminal device adopts cell discontinuous transmission Cell DTX to communicate with the above-mentioned access network device.

In a possible implementation, the first indication information is further used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode:

Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal.

In a possible implementation, the first indication information is carried in downlink control information DCI.

In a possible implementation, the first indication information is also used to indicate a value of the number of cycles during which the first working mode or the second working mode lasts.

In a possible implementation, the transceiver unit 1301 is further configured to:

Sending high-level signaling to the above terminal equipment;

The above-mentioned high-level signaling includes a value of the number of cycles during which the above-mentioned first working mode or the above-mentioned second working mode continues; or the above-mentioned high-level signaling includes a candidate set of values of the number of cycles during which the above-mentioned first working mode or the above-mentioned second working mode continues;

The above-mentioned high-level signaling is a radio resource control RRC message or system information.

In a possible implementation, the first indication information is further used to indicate one or more of the following information:

an identifier of a serving cell group, the identifier of the serving cell group being used to indicate the serving cell group to which the first indication information applies, each serving cell group including identifiers of one or more serving cells; or

An identifier of a bandwidth part BWP corresponding to each of the above service cells.

In a possible implementation, the transceiver unit 1301 is further configured to:

Send an RRC message to the terminal device, where the RRC message includes one or more of the following information:

the correspondence between the serving cell and the serving cell group; or,

The BWP corresponding to each of the above-mentioned serving cells is information of energy-saving BWP.

In a possible implementation, the first indication information is used to indicate enabling the second working mode;

After sending the first indication information to the terminal device, the transceiver unit 1301 is further used to:

Sending second indication information to the terminal device, where the second indication information is used to indicate an identifier of a reference signal;

The reference signal is sent to the terminal device, where the reference signal is used for time-frequency synchronization and/or automatic gain control AGC adjustment.

In a possible implementation, the second indication information is further used to indicate one or more of the following information:

The validity period during which the above reference signal applies; or,

The identifier of the service cell group, the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each of the service cell groups includes the identifiers of one or more service cells.

In a possible implementation, the second indication information is carried in one or more of the following messages:

Media access control element MAC CE, RRC message, or DCI.

In a possible implementation, the first indication information is used to indicate enabling the second working mode; and the transceiver unit 1301 is further used to:

Sending third indication information to the terminal device, where the third indication information is used to indicate one or more of the following information:

Cell DTX cycle; or,

Cell DTX On-duration timer; or,

Cell DTX inactivity timer; or,

The start time offset value of the Cell DTX cycle.

In a possible implementation, before sending the third indication information to the terminal device, the transceiver unit 1301 is further configured to:

Receive auxiliary information from the terminal device, the auxiliary information including one or more of the following information:

The Cell DTX period expected by the above terminal device; or,

the Cell DTX On-duration timer expected by the above terminal device; or,

the Cell DTX inactivity Timer expected by the above terminal device; or,

The start time offset value of the Cell DTX cycle expected by the above terminal device; or,

The above terminal device expects to enter the Cell DTX cycle; or,

the duration of the Cell DTX period that the terminal device expects to enter; or,

The above terminal device expects to enter the UE DRX cycle; or,

The duration that the above terminal device expects to enter the UE DRX cycle.

In a possible implementation, before receiving the auxiliary information from the terminal device, the transceiver unit 1301 is further configured to:

Send fourth indication information to the terminal device, where the fourth indication information is used to request the terminal device to send the auxiliary information.

In a possible implementation, before receiving the auxiliary information from the terminal device, the transceiver unit 1301 is further configured to:

Send fifth indication information to the terminal device, where the fifth indication information is used to indicate one or more of the following information:

The candidate cell DTX period; or,

Candidate cell DTX On-duration timer; or,

Candidate cell DTX inactivity Timer; or,

The start time offset value of the candidate Cell DTX cycle; or,

The duration of the candidate's entry into the Cell DTX period; or,

Candidate duration for entering UE DRX cycle.

For other possible implementations of the communication device, reference may be made to the relevant descriptions of the network device in the method embodiments corresponding to FIGS. 4 to 11 above, which will not be described in detail here.

Please refer to Figure 14, which is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. As shown in Figure 14, the communication device can be a terminal device described in an embodiment of the present application. For the sake of convenience, Figure 14 only shows the main components of the terminal device 1400. As shown in Figure 14, the terminal device 1400 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The processor is mainly used to process the communication protocol and communication data, as well as to control the entire terminal device 1400, execute software programs, and process the data of the software program. The memory is mainly used to store software programs and data. The control circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, microphones, keyboards, etc., are mainly used to receive data input by users and output data to users.

Taking the terminal device 1400 as a mobile phone as an example, when the terminal device 1400 is turned on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the control circuit. The control circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal outward through the antenna in the form of electromagnetic waves. When data is sent to the terminal device 1400, the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that, for ease of explanation, FIG. 14 only shows one memory and one processor. The terminal device 1400 may include multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiments of the present application.

As an optional implementation, the processor may include a baseband processor and a central processor, the baseband processor is mainly used to process the communication protocol and communication data, and the central processor is mainly used to control the entire terminal device 1400, execute the software program, and process the data of the software program. The processor in FIG14 integrates the functions of the baseband processor and the central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors, interconnected by technologies such as buses. The terminal device 1400 may include multiple baseband processors to adapt to different network formats, the terminal device 1400 may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device 1400 may be connected through various buses. The baseband processor may also be described as a baseband processing circuit or a baseband processing chip. The central processor may also be described as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built into the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

In one example, the antenna and control circuit with transceiver functions can be regarded as the transceiver unit 1411 of the terminal device 1400, and the processor with processing function can be regarded as the processing unit 1420 of the terminal device 1400. As shown in FIG14, the terminal device 1400 includes a transceiver unit 1411 and a processing unit 1420. The transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver device, etc. Optionally, the device for implementing the receiving function in the transceiver unit 1411 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1411 can be regarded as a sending unit, that is, the transceiver unit 1411 includes a receiving unit and a sending unit. Exemplarily, the receiving unit can also be referred to as a receiver, a receiver, a receiving circuit, etc., and the sending unit can be referred to as a transmitter, a transmitter, or a sending circuit, etc.

Please refer to Figure 15, which is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. As shown in Figure 15, the communication device can be a network device described in an embodiment of the present application, for example, the network device is specifically an access network device. The network device 15 includes: a baseband device 151, a radio frequency device 152, and an antenna 153. In the uplink direction, the radio frequency device 152 receives information sent by the terminal device through the antenna 153, and sends the information sent by the terminal device to the baseband device 151 for processing. In the downlink direction, the baseband device 151 processes the information of the terminal device and sends it to the radio frequency device 152. The radio frequency device 152 processes the information of the terminal device and sends it to the terminal device through the antenna 153.

The baseband device 151 includes one or more processing units 1511, a storage unit 1512 and an interface 1513. The processing unit 1511 is used to support the network device to perform the functions of the network device in the above method embodiment. The storage unit 1512 is used to store software programs and/or data. The interface 1513 is used to exchange information with the radio frequency device 152, and the interface includes an interface circuit for inputting and outputting information. In one implementation, the processing unit is an integrated circuit, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip. The storage unit 1512 and the processing unit 1511 can be located in the same chip, that is, an on-chip storage element. Or the storage unit 1512 and the processing unit 1511 can also be on different chips from the processing unit 1511, that is, an off-chip storage element. The storage unit 1512 may be a memory, or a general term for multiple memories or storage elements.

The network device may implement some or all of the steps in the above method embodiment in the form of one or more processing unit schedulers. For example, the corresponding functions of the network devices in Figures 4 to 11 are implemented. One or more processing units may support the same type of wireless access technology, or may support different types of wireless access technologies.

An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.

The embodiment of the present application also provides a computer program product. When the computer program product runs on a processor, the method flow of the above method embodiment is implemented.

Those of ordinary skill in the art will appreciate that the units and steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned computer-readable storage medium can be any available medium that can be accessed by a computer. By way of example and not limitation, computer-readable media may include random access memory (RAM), read-only memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), universal serial bus flash disk, mobile hard disk, or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer. In addition, by way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) or direct rambus RAM (DR RAM).

The above are only specific implementation methods of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be based on the protection scope of the claims.

Claims (35)

A communication method, characterized in that the method is applied to a terminal device, comprising: Receiving first indication information from an access network device, the first indication information is used to indicate enabling a first working mode or a second working mode, the first working mode is that the terminal device uses user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device uses cell discontinuous transmission CellDTX to communicate with the access network device; Determine, according to the first indication information, whether to adopt the first working mode or the second working mode to communicate with the access network device. The method according to claim 1, characterized in that the first indication information is also used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode: Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal. The method according to claim 1, wherein the receiving the first indication information from the access network device comprises: During the inactive time of the first working mode or the second working mode, the first indication information is received from the access network device. The method according to any one of claims 1-3 is characterized in that the first indication information is carried in downlink control information DCI. The method according to any one of claims 1-4 is characterized in that the first indication information is also used to indicate the value of the number of cycles that the first working mode or the second working mode lasts. The method according to any one of claims 1 to 4, characterized in that the method further comprises: Receiving high-layer signaling from the access network device; The high-level signaling includes a value of the number of cycles during which the first working mode or the second working mode continues; or, the high-level signaling includes a candidate set of values of the number of cycles during which the first working mode or the second working mode continues; The high-level signaling is a radio resource control RRC message or system information. The method according to any one of claims 1 to 6, characterized in that the first indication information is also used to indicate one or more of the following information: an identifier of a serving cell group, where the identifier of the serving cell group is used to indicate the serving cell group to which the first indication information is applicable, and each serving cell group includes identifiers of one or more serving cells; or An identifier of a bandwidth part BWP corresponding to each of the serving cells. The method according to claim 7, characterized in that the method further comprises: Receive an RRC message from the access network device, where the RRC message includes one or more of the following information: the correspondence between the serving cell and the serving cell group; or, The BWP corresponding to each of the serving cells is information about an energy-saving BWP. The method according to any one of claims 1 to 8, characterized in that the first indication information is used to indicate enabling the second working mode; After receiving the first indication information from the access network device, the method further includes: receiving, within the activation time of the second working mode, second indication information from the access network device, where the second indication information is used to indicate an identifier of a reference signal; receiving the reference signal during an inactive time of the second working mode; Time-frequency synchronization and/or automatic gain control AGC adjustment are performed according to the reference signal. The method according to claim 9, characterized in that the second indication information is also used to indicate one or more of the following information: The reference signal is applicable to the valid time; or, an identifier of a serving cell group, wherein the identifier of the serving cell group is used to indicate the serving cell group to which the second indication information is applicable, The service cell group includes the identifiers of one or more service cells. The method according to claim 9 or 10, characterized in that the second indication information is carried in one or more of the following messages: Media access control element MAC CE, RRC message, or DCI. The method according to any one of claims 1 to 11, characterized in that the first indication information is used to indicate enabling of the second working mode; the method further comprises: Receive third indication information from the access network device, where the third indication information is used to indicate one or more of the following information: Cell DTX cycle; or, Cell DTX On-duration timer; or, Cell DTX inactivity timer; or, The start time offset value of the Cell DTX cycle. The method according to claim 12, characterized in that before receiving the third indication information from the access network device, the method further comprises: Sending auxiliary information to the access network device, where the auxiliary information includes one or more of the following information: the Cell DTX period expected by the terminal device; or, the Cell DTX On-duration timer expected by the terminal device; or, the Cell DTX inactivity Timer expected by the terminal device; or, The starting time offset value of the Cell DTX cycle expected by the terminal device; or, The terminal device expects to enter the Cell DTX cycle; or, The duration of the Cell DTX cycle that the terminal device expects to enter; or, The terminal device expects to enter the UE DRX cycle; or, The duration that the terminal device expects to enter the UE DRX cycle. The method according to claim 13, characterized in that before sending the auxiliary information to the access network device, the method further comprises: Receive fourth indication information from the access network device, where the fourth indication information is used to request the terminal device to send the auxiliary information. The method according to claim 13, characterized in that before sending the auxiliary information to the access network device, the method further comprises: Receive fifth indication information from the access network device, where the fifth indication information is used to indicate one or more of the following information: The candidate cell DTX period; or, Candidate cell DTX On-duration timer; or, Candidate cell DTX inactivity Timer; or, The start time offset value of the candidate Cell DTX cycle; or, The duration of the candidate's entry into the Cell DTX period; or, Candidate duration for entering UE DRX cycle. A communication method, characterized in that the method is applied to an access network device, comprising: determining first indication information; The first indication information is sent to the terminal device, wherein the first indication information is used to indicate enabling of a first working mode or a second working mode, wherein the first working mode is that the terminal device adopts user equipment discontinuous reception UE DRX to communicate with the access network device, and the second working mode is that the terminal device adopts cell discontinuous transmission Cell DTX to communicate with the access network device. The method according to claim 16, characterized in that the first indication information is also used to indicate whether to perform at least one of the following operations in the first working mode or the second working mode: Monitor the physical downlink control channel PDCCH, monitor the downlink common signal, or send an uplink physical signal. The method according to claim 16 or 17 is characterized in that the first indication information is carried in downlink control information DCI. The method according to any one of claims 16-18 is characterized in that the first indication information is also used to indicate the value of the number of cycles that the first working mode or the second working mode lasts. The method according to any one of claims 16 to 18, characterized in that the method further comprises: Sending high-layer signaling to the terminal device; The high-level signaling includes a value of the number of cycles during which the first working mode or the second working mode continues; or, the high-level signaling includes a candidate set of values of the number of cycles during which the first working mode or the second working mode continues; The high-level signaling is a radio resource control RRC message or system information. The method according to any one of claims 16 to 20, characterized in that the first indication information is also used to indicate one or more of the following information: an identifier of a serving cell group, where the identifier of the serving cell group is used to indicate the serving cell group to which the first indication information is applicable, and each serving cell group includes identifiers of one or more serving cells; or An identifier of a bandwidth part BWP corresponding to each of the serving cells. The method according to claim 21, characterized in that the method further comprises: Send an RRC message to the terminal device, where the RRC message includes one or more of the following information: the correspondence between the serving cell and the serving cell group; or, The BWP corresponding to each of the serving cells is information about an energy-saving BWP. The method according to any one of claims 16 to 22, characterized in that the first indication information is used to indicate enabling the second working mode; After sending the first indication information to the terminal device, the method further includes: Sending second indication information to the terminal device, where the second indication information is used to indicate an identifier of a reference signal; The reference signal is sent to the terminal device, where the reference signal is used for time-frequency synchronization and/or automatic gain control AGC adjustment. The method according to claim 23, characterized in that the second indication information is also used to indicate one or more of the following information: The reference signal is applicable to the valid time; or, An identifier of a service cell group, wherein the identifier of the service cell group is used to indicate the service cell group to which the second indication information is applicable, and each service cell group includes identifiers of one or more service cells. The method according to claim 23 or 24, characterized in that the second indication information is carried in one or more of the following messages: Media access control element MAC CE, RRC message, or DCI. The method according to any one of claims 16 to 25, characterized in that the first indication information is used to indicate enabling of the second working mode; the method further comprises: Sending third indication information to the terminal device, where the third indication information is used to indicate one or more of the following information: Cell DTX cycle; or, Cell DTX On-duration timer; or, Cell DTX inactivity timer; or, The start time offset value of the Cell DTX cycle. The method according to claim 26, characterized in that before sending the third indication information to the terminal device, the method The law also includes: Receive auxiliary information from the terminal device, where the auxiliary information includes one or more of the following information: the Cell DTX period expected by the terminal device; or, the Cell DTX On-duration timer expected by the terminal device; or, the Cell DTX inactivity Timer expected by the terminal device; or, The starting time offset value of the Cell DTX cycle expected by the terminal device; or, The terminal device expects to enter the Cell DTX cycle; or, The duration of the Cell DTX cycle that the terminal device expects to enter; or, The terminal device expects to enter the UE DRX cycle; or, The duration that the terminal device expects to enter the UE DRX cycle. The method according to claim 27, characterized in that before receiving the auxiliary information from the terminal device, the method further comprises: Send fourth indication information to the terminal device, where the fourth indication information is used to request the terminal device to send the auxiliary information. The method according to claim 27, characterized in that before receiving the auxiliary information from the terminal device, the method further comprises: Send fifth indication information to the terminal device, where the fifth indication information is used to indicate one or more of the following information: The candidate cell DTX period; or, Candidate cell DTX On-duration timer; or, Candidate cell DTX inactivity Timer; or, The start time offset value of the candidate Cell DTX cycle; or, The duration of the candidate's entry into the Cell DTX period; or, Candidate duration for entering UE DRX cycle. A communication device, characterized by comprising a unit or module for executing the method according to any one of claims 1-15. A communication device, characterized by comprising a unit or module for executing the method according to any one of claims 16-29. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises instructions, and when the instructions are executed by a processor, the method according to any one of claims 1 to 15 is implemented. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises instructions, and when the instructions are executed by a processor, the method according to any one of claims 16-29 is implemented. A computer program product, characterized in that the computer program product comprises instructions, and when the instructions are executed by a processor, the method according to any one of claims 1 to 15 is implemented, or the method according to any one of claims 16 to 29 is implemented. A chip or chip system, characterized in that it includes an input and output interface and a processing circuit, wherein the input and output interface is used to exchange information or data, and the processing circuit is used to run instructions so that a device installed with the chip or chip system executes the method as claimed in claims 1-15, or the device installed with the chip or chip system executes the method as claimed in claims 16-29.