CN115707108A

CN115707108A - Communication method, device and system

Info

Publication number: CN115707108A
Application number: CN202110903317.6A
Authority: CN
Inventors: 胡丹; 张旭; 刘显达; 李晨琬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-17
Also published as: WO2023011619A1

Abstract

The embodiment of the application provides a communication method, a communication device and a communication system, which are used for improving the performance of power headroom reporting in a multi-network equipment cooperation scene. The method comprises the following steps: determining a first power headroom and a second power headroom; reporting the first power headroom and the second power headroom; wherein the first power headroom is determined according to a first PUSCH repetition, the second power headroom is determined according to a second PUSCH repetition, the first PUSCH repetition is associated with a first beam, and the second PUSCH repetition is associated with a second beam; alternatively, the first power headroom is determined from a third PUSCH, the second power headroom is determined from a reference PUSCH transmission, the third PUSCH being associated with the first beam.

Description

Communication method, device and system

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method, apparatus, and system.

Background

In a wireless communication system, a User Equipment (UE) may transmit an uplink signal on an uplink carrier according to scheduling of a base station. The specific process can be as follows: the UE determines a Power Headroom (PH) of an uplink carrier, generates a Power Headroom Report (PHR) based on the PH, and reports the PHR to the network device. The network equipment can adjust the uplink transmission power of the UE according to the PHR.

For example, when the PH value corresponding to the PHR is greater than 0, it indicates that the UE has remaining power, which may further enlarge the uplink transmission bandwidth and may also transmit more data. The larger the PH value is, the more remaining power of the UE is indicated, and the uplink transmission power of the UE can be increased. If the PH value is a negative value, the UE reports that the scheduled transmission power exceeds the allowed maximum transmission power, and the uplink transmission power of the UE is reduced.

In order to improve the reliability of Physical Uplink Shared Channel (PUSCH) transmission, a PUSCH may be cooperatively received and processed by a plurality of network devices. For example, the PUSCH employs two repeated transmissions, the first repeated transmission employs the precoding scheme 1 to facilitate reception of the TRP1, the second repeated transmission employs the precoding scheme 2 to facilitate reception of the TRP2, and the PUSCH employs different precoding schemes (or different beams) to repeatedly transmit the same TB at different times.

Under the existing mechanism, the same PUSCH usually adopts a set of power control parameters and a precoding matrix, which is difficult to satisfy the scenario that a plurality of network devices cooperatively receive and process the PUSCH.

Disclosure of Invention

The application provides a communication method, a communication device and a communication system, which are used for improving the transmission performance in the communication process.

In a first aspect, a communication method provided in an embodiment of the present application may be applied to a terminal device or a component, such as a chip, on the terminal device. The following description is performed by taking an example executed by a terminal device, and the method includes: determining a first power headroom and a second power headroom; reporting the first power headroom and the second power headroom; wherein the first power headroom is determined according to a first PUSCH repetition associated with a first beam and the second power headroom is determined according to a second PUSCH repetition associated with a second beam. Alternatively, the first power headroom is determined from a third PUSCH associated with the first beam, the second power headroom is determined from a reference PUSCH transmission.

By the method, the terminal device can report the corresponding power headroom based on the first PUSCH repetition and the second PUSCH repetition of one serving cell in a multi-network device cooperation scene, namely report the first power headroom and the second power headroom, so that the network device can better schedule the PUSCH repetition based on the first power headroom and the second power headroom in a scene that the precoding modes corresponding to the first beam and the second beam are different, and the multi-network device cooperation performance is improved.

In a possible implementation manner, terminal equipment acquires configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam; alternatively, the first beam is associated with the first power control parameter and the second beam is associated with the second power control parameter. So that the terminal device obtains the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition.

In one possible implementation, the first power headroom and the second power headroom are carried on a Media Access Control (MAC) layer control element (MAC CE).

By the method, the first power headroom and the second power headroom can be on one power headroom report MAC CE, and the first power headroom and the second power headroom do not need to be separately transmitted, so that the signaling overhead is reduced.

One possible implementation manner of the present invention is that the power headroom report MAC CE includes a plurality of power headrooms, and the power headrooms are arranged in the following order: the method comprises the steps of firstly arranging the indexes of the service cells corresponding to the power headroom of the plurality of power headrooms in an ascending order, and then arranging the indexes of the beams corresponding to the power headroom of the plurality of power headrooms in an ascending order.

One possible implementation manner, the power headroom report MAC CE includes a plurality of power headrooms, and the power headrooms are arranged in the following order: the beam indexes corresponding to the power headroom values of the plurality of power headroom values are arranged in an ascending order, and then the beam indexes corresponding to the power headroom values of the plurality of power headroom values are arranged in an ascending order.

By the method, the complexity of reporting the multiple power margins by the terminal equipment can be simplified, and correspondingly, the complexity of analyzing the multiple power margins by the network equipment can be reduced.

A possible implementation manner, where the reporting the first power headroom and the second power headroom includes any one of the following:

transmitting the first power headroom and the second power headroom on the first PUSCH repetition;

transmitting the first power headroom and the second power headroom on the second PUSCH repetition;

transmitting the first power headroom and the second power headroom on the third PUSCH;

transmitting the first power headroom and the second power headroom on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

A possible implementation manner of the reporting power headroom report MAC CE includes any one of:

transmitting a power headroom report, MAC, CE, on the first PUSCH repetition;

transmitting a power headroom report, MAC, CE, on the second PUSCH repetition;

transmitting a power headroom report, MAC, CE, on the third PUSCH;

transmitting the power headroom report, MAC CE, on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

By the method, the terminal equipment can report the first power headroom and the second power headroom in various modes, and the flexibility of reporting the power headroom is improved.

In a possible implementation manner, the fourth PUSCH satisfies any one of the following:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

the fourth PUSCH overlaps the first PUSCH repetition in the time domain and partially overlaps the second PUSCH repetition in the time domain;

the fourth PUSCH overlaps in time domain with the first PUSCH repetition and overlaps in time domain with the second PUSCH repetition;

the fourth PUSCH is non-overlapping in time domain with the first PUSCH repetition, and the fourth PUSCH is non-overlapping in time domain with the second PUSCH repetition.

By the method, the reporting of the first power headroom and the second power headroom can be based on the relation of the fourth PUSCH and the first PUSCH repetition or the second PUSCH repetition in the time domain, so that the performance of reporting the power headroom is improved, and the network equipment can more accurately determine the uplink resources and the uplink power of the terminal equipment.

A possible implementation manner, where reporting the first power headroom and the second power headroom includes any one of:

when triggering power headroom reporting is related to the first PUSCH repetition, sending the first power headroom and the second power headroom on the first PUSCH repetition;

sending the first power headroom and the second power headroom on the second PUSCH repetition when triggering power headroom reporting is related to the second PUSCH repetition;

when triggering power headroom reporting is related to the third PUSCH, sending the first power headroom and the second power headroom on the third PUSCH;

and when triggering power headroom reporting is related to the fourth PUSCH, transmitting the first power headroom and the second power headroom on the fourth PUSCH.

when triggering power headroom report is related to the first PUSCH repetition, transmitting the power headroom report MAC CE on the first PUSCH repetition;

when triggering power headroom report and the second PUSCH repetition are related, transmitting the power headroom report MAC CE on the second PUSCH repetition;

when triggering power headroom report is related to the third PUSCH, transmitting the power headroom report MAC CE on the third PUSCH;

and when triggering power headroom report and the fourth PUSCH are related, transmitting the power headroom report MAC CE on the fourth PUSCH.

By the method, the method for reporting the first power headroom and the second power headroom under different trigger scenes is considered, and the reporting flexibility is improved.

One possible implementation, the first power control parameter or the second power control parameter includes at least one of: open loop power control parameter basic value P0, path loss compensation factor alpha, path loss reference signal ID, transmission power control TPC command and closed loop index.

Therefore, the terminal device can accurately determine the transmission power of uplink transmission on the first PUSCH repetition or the third PUSCH repetition or the second PUSCH repetition, and the accuracy of determining the power headroom is improved.

In a possible implementation manner, before reporting the first power headroom and the second power headroom, first indication information may be further received, where the first indication information is used to instruct the terminal device to send a first PUSCH repetition and a second PUSCH repetition.

In a possible implementation manner, before reporting the first power headroom and the second power headroom, second indication information is further received, where the second indication information is used to indicate the terminal device to send a third PUSCH transmission.

In a possible implementation manner, before reporting the first power headroom and the second power headroom, third indication information is further received, where the third indication information is used to instruct the terminal device to send a fourth PUSCH transmission.

In one possible implementation, the first PUSCH repetition and the second PUSCH repetition are transmitted.

By the method, the terminal device may determine the first power headroom and the second power headroom, or report the first power headroom and the second power headroom, based on an actual transmission condition, for example, whether to send the first PUSCH repetition and the second PUSCH repetition, the third PUSCH transmission, or the fourth PUSCH transmission, so as to improve performance of reporting the power headroom.

In a second aspect, embodiments of the present application provide a communication method, which may be applied to a terminal device or a component, e.g., a chip, on the terminal device. The method comprises the following steps: and determining a first field and a second field, and reporting the first field and the second field. The order of reporting the first field and the second field may be sorted in ascending order according to the serving cell index of the first field, and then sorted in ascending order according to the serving cell index of the second field. Or, the order of reporting the first field and the second field may be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell indexes corresponding to the first field and the second field.

In one possible implementation, the first field indicates a first power headroom for a first PUSCH repetition, the second field indicates a second power headroom for a second PUSCH repetition, the first PUSCH repetition is associated with a first beam, and the second PUSCH repetition is associated with a second beam. The beam index of the first beam and the beam index of the second beam may be in an ascending relationship.

Another possible implementation manner is that the first field indicates the power headroom of the third PUSCH and the second field indicates the power headroom of the reference PUSCH. The third PUSCH is associated with the first beam.

By the method, the terminal device can report the corresponding power headroom, namely the first field and the second field, based on the first PUSCH repetition and the second PUSCH repetition of one serving cell in a multi-network device cooperation scene, so that the network device can better schedule the PUSCH repetition based on the first power headroom and the second power headroom in a scene that the precoding modes corresponding to the first beam and the second beam are different, and the performance of multi-network device cooperation is improved. In addition, the complexity of reporting a plurality of power headroom values by the terminal device can be simplified by sequencing the first field and the second field, and correspondingly, the complexity of analyzing the plurality of power headroom values by the network device can also be reduced.

In a possible implementation manner, terminal equipment acquires configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam; alternatively, the first beam is associated with the first power control parameter and the second beam is associated with the second power control parameter.

In one possible implementation, the first field and the second field are carried on a power headroom report MAC CE.

In a possible implementation manner, the reporting the first field and the second field includes any one of:

transmitting the first field and the second field on the first PUSCH repetition;

transmitting the first field and the second field on the second PUSCH repetition;

transmitting the first field and the second field on the third PUSCH;

transmitting the first field and the second field on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

transmitting a power headroom report, MAC, CE, on the first PUSCH repetition;

transmitting a power headroom report, MAC, CE, on the second PUSCH repetition;

transmitting a power headroom report, MAC, CE, on the third PUSCH;

transmitting a power headroom report, MAC CE, on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

In one possible implementation, the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

the fourth PUSCH overlaps in time domain with the first PUSCH repetition and partially overlaps in time domain with the second PUSCH repetition;

A possible implementation manner is that a terminal device reports a first field and a second field, and includes any one of the following:

sending the first field and the second field on the first PUSCH repetition when triggering power headroom reporting is related to the first PUSCH repetition;

sending the first field and the second field on the second PUSCH repetition when triggering power headroom reporting is related to the second PUSCH repetition;

when triggering power headroom reporting is related to the third PUSCH, sending the first field and the second field on the third PUSCH;

transmitting the first field and the second field on the fourth PUSCH when triggering power headroom reporting related to the fourth PUSCH.

A possible implementation manner is that a terminal device reports a power headroom report MAC CE, and the method includes any one of the following:

In a possible implementation manner, before reporting the first field and the second field, the terminal device may further receive first indication information, where the first indication information is used to indicate the terminal device to send the first PUSCH repetition and the second PUSCH repetition.

In a possible implementation manner, before the terminal device reports the first field and the second field, second indication information may also be received, where the second indication information is used to indicate the terminal device to send a third PUSCH transmission;

in a possible implementation manner, before reporting the first field and the second field, the terminal device may further receive third indication information, where the third indication information is used to indicate that the terminal device sends a fourth PUSCH transmission.

It should be noted that beneficial effects of any possible implementation manner of the second aspect may refer to the beneficial effects of the first aspect, and are not described herein again.

In a third aspect, an embodiment of the present application provides a communication method, which may be applied to a network device or a component in the network device, for example, a chip, where the method includes: transmitting first configuration information indicating a first PUSCH repetition and the second PUSCH repetition; receiving a first power headroom and a second power headroom; wherein the first power headroom is determined according to a first PUSCH repetition associated with a first beam and the second power headroom is determined according to a second PUSCH repetition associated with a second beam. Alternatively, the first power headroom is determined from a third PUSCH associated with the first beam, the second power headroom is determined from a reference PUSCH transmission.

By the method, when the network device configures the first PUSCH repetition and the second PUSCH repetition for the terminal device, that is, the terminal device may report the corresponding power headroom based on the first PUSCH repetition and the second PUSCH repetition of one serving cell in a multi-network-device cooperation scenario, that is, report the first power headroom and the second power headroom, and accordingly, after receiving the first power headroom and the second power headroom, the network device may schedule uplink transmission of the terminal device accordingly, thereby improving uplink transmission performance of the terminal device.

In one possible implementation manner, the first configuration information includes: configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam; alternatively, the first beam is associated with the first power control parameter and the second beam is associated with the second power control parameter.

In one possible implementation, the first power headroom and the second power headroom are carried on a power headroom report MAC CE.

In one possible implementation manner, the power headroom report MAC CE includes a plurality of power headrooms, and the power headrooms are arranged in the following order: and the beam indexes are arranged in an ascending order according to the beam indexes corresponding to each of the plurality of power margins.

One possible implementation manner, in which the network device receives the first power headroom and the second power headroom, includes any one of:

receiving the first power headroom and the second power headroom on the first PUSCH repetition;

receiving the first power headroom and the second power headroom on the second PUSCH repetition;

receiving the first power headroom and the second power headroom on the third PUSCH;

receiving the first power headroom and the second power headroom on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

One possible implementation manner, in which a network device receives a power headroom report MAC CE, includes any one of:

receiving a power headroom report, MAC, CE on the first PUSCH repetition;

receiving a power headroom report, MAC, CE on the second PUSCH repetition;

receiving a power headroom report, MAC, CE, on the third PUSCH;

receiving the power headroom report, MAC CE, on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

By the method, the network equipment can receive the first power headroom and the second power headroom in various modes, and the flexibility of the network equipment for scheduling the transmission of the terminal equipment based on the power headroom is improved.

In one possible implementation, the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

By the method, the first power headroom and the second power headroom received by the network equipment can be reported based on the relation between the fourth PUSCH and the first PUSCH repetition or the second PUSCH repetition in the time domain, so that the performance of reporting the power headroom is improved, and the network equipment can more accurately determine the uplink resources and the uplink power of the terminal equipment.

In a possible implementation manner, before the network device receives the first power headroom and the second power headroom, first indication information may be further sent, where the first indication information is used to instruct the terminal device to send a first PUSCH repetition and a second PUSCH repetition.

In a possible implementation manner, before the network device receives the first power headroom and the second power headroom, the network device may further send second indication information, where the second indication information is used to indicate the terminal device to send a third PUSCH transmission;

in a possible implementation manner, before the network device receives the first power headroom and the second power headroom, third indication information may be further sent, where the third indication information is used to instruct the terminal device to send a fourth PUSCH transmission.

In one possible implementation, the network device may further receive the first PUSCH repetition and the second PUSCH repetition.

By the method, the method for reporting the first power headroom and the second power headroom under different trigger scenes is considered, and the flexibility of reporting the power headroom is improved.

In a fourth aspect, a communication method provided in an embodiment of the present application may be applied to a network device, or a component, e.g., a chip, in the network device, and the method includes: transmitting first configuration information indicating a first PUSCH repetition and the second PUSCH repetition; receiving a first field and a second field; the order of reporting the first field and the second field may be sorted in ascending order according to the serving cell index of the first field, and then sorted in ascending order according to the serving cell index of the second field. Or, the order of reporting the first field and the second field may be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell indexes corresponding to the first field and the second field.

In a fourth aspect, a possible implementation is that the first field indicates a first power headroom of a first PUSCH repetition, the second field indicates a second power headroom of a second PUSCH repetition, the first PUSCH repetition is associated with a first beam, and the second PUSCH repetition is associated with a second beam. The beam index of the first beam and the beam index of the second beam may be in an ascending relationship.

In the fourth aspect, another possible implementation manner, the first field indicates a power headroom of the third PUSCH, and the second field indicates a power headroom of the reference PUSCH. The third PUSCH is associated with the first beam.

One possible implementation manner is that the network device receives the first field and the second field, and includes any one of the following:

receiving the first field and the second field on the first PUSCH repetition;

receiving the first field and the second field on the second PUSCH repetition;

receiving the first field and the second field on the third PUSCH;

receiving the first field and the second field on a fourth PUSCH, the fourth PUSCH being located in a different serving cell than the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

One possible implementation manner is that a network device receives a power headroom report MAC CE, and includes any one of the following:

receiving the power headroom report, MAC CE, on the first PUSCH repetition;

receiving the power headroom report, MAC, CE on the second PUSCH repetition;

receiving the power headroom report, MAC, CE on the third PUSCH;

In one possible implementation, the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

A possible implementation manner, the first power control parameter or the second power control parameter includes at least one of: open loop power control parameter basic value P0, path loss compensation factor alpha, path loss reference signal ID, transmission power control TPC command and closed loop index.

In a possible implementation manner, before receiving the first field and the second field, the network device may further send first indication information, where the first indication information is used to instruct the terminal device to send a first PUSCH repetition and a second PUSCH repetition;

in a possible implementation manner, before receiving the first field and the second field, the network device may further send second indication information, where the second indication information is used to indicate that the terminal device sends a third PUSCH transmission;

in a possible implementation manner, before the network device receives the first field and the second field, third indication information may be further sent, where the third indication information is used to indicate that the terminal device sends a fourth PUSCH transmission.

It should be noted that, for the beneficial effects of any possible implementation manner of the fourth aspect, reference may be made to the beneficial effects of the third aspect, which is not described herein again.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, where the apparatus may be a terminal device, or may be a chip in the terminal device. The apparatus may include a processing unit, a transceiver unit, and a receiving unit. It should be understood that the transmitting unit and the receiving unit may also be a transceiving unit here. When the apparatus is a terminal device, the processing unit may be a processor, and the transmitting unit and the receiving unit may be transceivers; the communication device may further include a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored by the storage unit to cause the terminal device to perform the method in the first aspect or any one of the possible designs of the first aspect, or to cause the terminal device to perform the method in the second aspect or any one of the possible designs of the second aspect. When the apparatus is a chip within a terminal device, the processing unit may be a processor, and the transmitting unit and the receiving unit may be input/output interfaces, pins, circuits, or the like; the processing unit executes instructions stored by the storage unit to cause the chip to perform the method of the first aspect or any one of the possible designs of the first aspect, or to cause the chip to perform the method of the second aspect or any one of the possible designs of the second aspect. The storage unit is used for storing instructions, and the storage unit may be a storage unit (e.g., a register, a cache, etc.) inside the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) outside the chip inside the terminal device.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, where the apparatus may be a network device or a chip in the network device. The apparatus may include a processing unit, a transceiver unit, and a receiving unit. It should be understood that the transmitting unit and the receiving unit may also be a transceiving unit here. When the apparatus is a network device, the processing unit may be a processor, and the transmitting unit and the receiving unit may be transceivers; the communication device may further include a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored by the storage unit to cause the first network device to perform the method in any one of the possible designs of the third aspect or the third aspect, or to cause the second network device to perform the method in any one of the possible designs of the fourth aspect or the fourth aspect. When the apparatus is a chip within a network device, the processing unit may be a processor, and the transmitting unit and the receiving unit may be input/output interfaces, pins, circuits, or the like; the processing unit executes the instructions stored by the storage unit to cause the chip to perform the method of any one of the possible designs of the third aspect or the third aspect, or to cause the chip to perform the method of any one of the possible designs of the fourth aspect or the fourth aspect. The storage unit is used for storing instructions, and the storage unit may be a storage unit (e.g., a register, a cache, etc.) inside the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) outside the chip inside the terminal device.

In a seventh aspect, this application embodiment further provides a computer-readable storage medium, which stores a computer program, and when the computer program runs on a computer, the computer program causes the computer to execute the method of the first aspect, the second aspect, the third aspect, or the fourth aspect.

In an eighth aspect, embodiments of the present application further provide a computer program product including a program, which, when run on a computer, causes the computer to perform the method of the first aspect, the second aspect, the third aspect or the fourth aspect.

In a ninth aspect, there is provided a communication apparatus comprising: a processor, a communication interface, and a memory. The communication interface is used for transmitting information, and/or messages, and/or data between the device and other devices. The memory is configured to store computer executable instructions that, when executed by the apparatus, cause the apparatus to perform a method as set forth in the first aspect or any of the designs of the first aspect, the second aspect or any of the designs of the second aspect.

In a tenth aspect, there is provided a communication apparatus comprising: a processor, a communication interface, and a memory. The communication interface is used for transmitting information, and/or messages, and/or data between the device and other devices. The memory is configured to store computer executable instructions, and when the apparatus is operating, the processor is configured to execute the computer executable instructions stored by the memory to cause the apparatus to perform the method as set forth in any one of the designs of the third aspect or the third aspect, the fourth aspect, or the fourth aspect.

In an eleventh aspect, embodiments of the present application provide a chip, where the chip is coupled with a memory, and performs a method according to the first aspect and any possible design thereof, the second aspect and any possible design thereof.

In a twelfth aspect, embodiments of the present application provide a chip, where the chip is coupled with a memory, and performs the method of the third aspect and any possible design thereof, and the fourth aspect and any possible design thereof.

In a thirteenth aspect, an embodiment of the present application provides a chip, including a communication interface and at least one processor, where the processor is operative to perform the method according to the first aspect or any design of the first aspect, the second aspect, or any possible design thereof.

In a fourteenth aspect, an embodiment of the present application provides a chip, which includes a communication interface and at least one processor, where the processor is operative to perform the method according to any design of the third aspect or the third aspect of the embodiments of the present application, the fourth aspect, and any possible design thereof.

In a fifteenth aspect, an embodiment of the present application further provides a communication system, including the terminal device in the first aspect and the first network device in the third aspect.

In a sixteenth aspect, an embodiment of the present application further provides a communication system, which includes the terminal device in the second aspect and the first network device in the fourth aspect.

It should be noted that "coupled" in the embodiments of the present application means that two components are directly or indirectly combined with each other.

Drawings

Fig. 1-3 are schematic diagrams of an architecture of a communication system according to an embodiment of the present application;

fig. 4 is a schematic diagram of an application scenario provided in an embodiment of the present application;

fig. 5 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 6 is a schematic diagram of an uplink transmission resource according to an embodiment of the present application;

fig. 7a and fig. 7b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 8 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 9 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 10 is a schematic diagram of an uplink transmission resource according to an embodiment of the present application;

fig. 11a and fig. 11b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 12 is a schematic flowchart of a communication method according to an embodiment of the present application;

fig. 13 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 14 is a schematic diagram of an uplink transmission resource according to an embodiment of the present application;

fig. 15a and fig. 15b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 16 a-16 b are schematic diagrams of uplink transmission resources according to an embodiment of the present application;

fig. 17 is a schematic diagram of an uplink transmission resource according to an embodiment of the present application;

fig. 18a and fig. 18b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 19 is a schematic diagram of an uplink transmission resource according to an embodiment of the present application;

fig. 20a and fig. 20b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 21 is a schematic diagram of an uplink transmission resource according to an embodiment of the present application;

fig. 22a and fig. 22b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 23 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 24 is a schematic structural diagram of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 25a and fig. 25b are schematic structural diagrams of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 26 is a schematic structural diagram of a power headroom report MAC CE according to an embodiment of the present disclosure;

fig. 27 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 28 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 29 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

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

This application is intended to present various aspects, embodiments or features around a system that may include a number of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, a combination of these schemes may also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Some terms of the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

1) The terminal device may be a device having a wireless transceiving function, and may also be referred to as a terminal. The terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a User Equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device having wireless communication functionality. Illustratively, the UE may be a mobile phone (mobile phone), a tablet computer, or a computer with wireless transceiving function. The terminal device may also be a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on. In the embodiment of the present application, the apparatus for implementing the function of the terminal device may be the terminal device; it may also be a device, such as a chip system, capable of supporting the terminal device to realize the function, and the device may be installed in the terminal device or used in cooperation with the terminal device. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. In the embodiment of the present application, a device that implements the function of the terminal device is described as an example of the terminal device. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

In this embodiment, the terminal device may be configured to receive a downlink signal and/or transmit an uplink signal.

2) The network device may be a device deployed in a radio access network and capable of wireless communication with the terminal device. The network device may be a Base Station (BS). The base station may have various forms, such as a macro base station, a micro base station, a relay station, an access point, and the like. The network device in this embodiment is an access device in which a terminal device accesses to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved node b (eNB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. In the embodiment of the present application, the apparatus for implementing the function of the network device may be a network device; it may also be a device, such as a chip system, capable of supporting the network device to implement the function, and the device may be installed in the network device or used in cooperation with the network device. In the embodiment of the present application, a device that implements the function of a network device is described as an example of a network device. The embodiments of the present application do not limit the specific technology and the specific device form used by the radio access network device.

The radio access network equipment and the terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, drones, balloons, and satellites. The embodiment of the application does not limit the application scenarios of the wireless access network device and the terminal device.

In this embodiment, the network device may include a scheduling device and a sending device, where the scheduling device includes, but is not limited to, an eNB and/or a gNB, an operator network device, and the like, and is configured to configure uplink and downlink resources and/or generate Downlink Control Information (DCI) in a scheduling mode; the transmitting device includes, but is not limited to, a TRP or a Remote Radio Head (RRH) for transmitting downlink signals including PDCCH, PDSCH, etc. and receiving uplink signals including PUCCH, PUSCH, etc.

3) Uplink transmission power control, which may also be referred to as uplink transmission power control or uplink power control, or may also be referred to as power control for short, is for a network device to receive an uplink signal with appropriate reception power, where the uplink signal is a signal transmitted by a terminal device through an uplink physical channel. Illustratively, the proper received power means, on the one hand, the received power required when the uplink signal is correctly decoded by the network device, and on the other hand, the uplink transmission power of the uplink signal cannot be unnecessarily high, so as not to cause interference to other uplink transmissions. Generally, a network device indicates a power control (also referred to as power control) parameter to indicate a power used by a terminal device to transmit an uplink signal.

Illustratively, the power control parameters include at least one of the following power control parameters: the method comprises the steps of open-loop power control parameters (indicating that network equipment configures the sending power value of terminal equipment according to a long-term observation result or further determining the sending power value according to a self measured value), closed-loop power control parameters (indicating that the network equipment determines the sending power value according to an instantaneous measurement result), a target value of sending power, an offset of the sending power, a reference signal index value for path loss measurement or a sending power adjustment quantity.

In the embodiment of the application, when an uplink signal transmitted by a terminal device can be a PUCCH, the power headroom report is a PUCCH power headroom report; when an uplink signal transmitted by the terminal equipment is a PUSCH, the power headroom report is a PUSCH power headroom report; and when the uplink signal transmitted by the terminal equipment is the SRS, the power headroom report is the SRS power headroom report.

After determining that the triggering condition for reporting the power headroom is satisfied, the terminal device determines the power headroom in various ways, which will be described in the following with the case one to case three as an example.

And the terminal equipment calculates the power margin according to the power required by all data transmission on each carrier at the moment of uplink data transmission. Moreover, the data transmission performed at the uplink data transmission time may include any one or more types of data transmission of data new transmission scheduled by the network device, data retransmission, or data transmission configured semi-statically by the network device, which is not limited in this embodiment of the present application.

In the embodiment of the present application, PH may include both real and virtual types. The real-type PH means that there is an actual uplink transmission on a certain Combined Carrier (CC), where the uplink transmission includes transmission of a data channel and transmission of an SRS, and the data transmission may include any one or more of new data transmission, repeated transmission of previous data, or semi-statically configured data transmission, and the terminal device calculates a power margin based on the actual data transmission (see cases one and three in particular). The virtual PH refers to a power headroom calculated by the terminal device based on a reference format without actual uplink transmission on the CC (see the second case). It can be seen that, compared with the virtual type, the real-type power headroom calculated based on actual transmission is more valuable to the network device, and the network device can perform more accurate scheduling on the uplink resource according to the real-type power headroom, thereby improving the utilization rate of the uplink resource.

The first condition is as follows: taking actually transmitted PUSCH to determine a power headroom, for example, taking power control of a Physical Uplink Shared Channel (PUSCH) as an example, when a terminal device sends a PUSCH to a network device on an uplink active part Bandwidth (BWP) b on a carrier f of a serving cell (serving cell) c, the power headroom of the PUSCH in a sending occasion i may be determined as an example, and the power headroom satisfies formula (1):

wherein, the first and the second end of the pipe are connected with each other,

can be viewed as an open-loop power control parameter, f _b,f,c (i, l) can be regarded as a closed-loop power control parameter.

P _CMAX,f,c (i) And the PUSCH maximum transmission power on the carrier f of the serving cell c configured for the terminal equipment.

P _{O_PUSCH,b,f,c} (j) And alpha _b,f,c May be collectively referred to as a target (desired) received power, J ∈ {0, 1., J-1}, the value of which may be indicated or configured by the network device for the terminal device through signaling (e.g., radio Resource Control (RRC) signaling, system messages, or DCI, etc.); wherein, the network device can configure a plurality of indications P for the terminal device _O (which may be regarded as a target value of the transmission power) and a (which may be regarded as an offset of the transmission power), the terminal device may determine, according to the current transmission mode (the transmission mode includes initial access transmission, DCI-based data scheduled transmission, RCC-based data scheduled transmission, or the like) and the indication (if any) of the SRI field, the number j of the set of parameters used for the transmission of the PUSCH, and thus, according to the number j of the set of parameters, determine the P used for the transmission of the PUSCH _O And alpha. For example, the network device may configure each parameter set for the terminal device through RRC signaling, where each parameter set includes an identifier (also referred to as an index or number) j, P of the parameter set _O And the value of alpha.

When multiple sets of power control parameters are configured and the DCI for scheduling the PUSCH includes the SRI field, the terminal device may determine, according to a mapping relationship between the SRI and the parameter sets, a parameter set used for sending the PUSCH and indicated by the SRI field in the DCI. For example, the mapping relationship between the SRI and the parameter set may be configured through RRC signaling. The SRI field is used for selecting a beam of the PUSCH, and is embodied in that when a network device configures multiple Sounding Reference Signal (SRS) resources, one or more SRS resources (indicated by the SRI field) need to be selected to characterize the beam of the PUSCH when scheduling the PUSCH, so that different parameter sets are indicated by indicating different values through the SRI field, and thus, different PUSCH beams can be enabled to adopt independent parameter sets to increase transmission performance. Taking the SRI to indicate the number of the selected SRS resource as an example, the number of the SRS resource indicates the number of layers used for PUSCH transmission, the SRI indicates different SRS resource numbers at different times, and P in the corresponding parameter set _O And alpha are also different.

When multiple parameter sets are configured and PUSCH is scheduledWhen the DCI does not include the SRI field, or when the DCI scheduling the PUSCH adopts a simplified DCI format, the number j =2 of the default parameter set, and the terminal device may determine, according to the parameter set corresponding to the number of the first parameter set, the P used for transmitting the PUSCH _O And the value of alpha.

α _b,f,c (j) For part of the path loss compensation factor, range (0, 1)]The value of the parameter may be indicated or configured by the network device for the terminal device through signaling (e.g., RRC signaling, system message, or DCI, etc.).

The number of RBs occupied by the PUSCH at a PUSCH transmission opportunity i on a uplink active partial Bandwidth (Bandwidth part) b of a carrier f of a serving cell (serving cell) c, that is, the number of Resource Blocks (RBs) to which the PUSCH is mapped, or the number of RBs used for transmitting the PUSCH, or the number of RBs occupied for transmitting the PUSCH, may be indicated or configured by a network device for a terminal device through signaling (e.g., RRC signaling or DCI).

Mu is the subcarrier spacing configuration of PUSCH. For example, the subcarrier intervals corresponding to different values of μ are shown in table 1.

TABLE 1

μ	Δf＝2 ^μ ·15[kHz]
		0	15
1	30
		2	60
3	120
		4	240

PL _b,f,c (q _d ) For the path loss estimation value, the parameter value may be an index value q (or a downlink parameter signal) of the terminal device according to the reference signal for performing path loss compensation _d An estimated path loss. When multiple path losses are configured, see the signal index value q _d The network device may further configure a plurality of reference signal index values q _d (also called path loss measurement reference signal index value) and the value of the SRI field, the terminal device may determine which reference signal index value q is used by the path loss estimation value of PUSCH according to the value of the SRI field _d (or reference signal corresponding to reference signal index value). When DCI for scheduling a PUSCH employs a reduced DCI format (may also be referred to as a compact DCI format), and Physical Uplink Control Channel (PUCCH) resource configuration information includes beam indication information, a terminal device may obtain a minimum reference signal index value q in PUCCH resource configuration information including the beam indication information _d And determining the path loss estimated value of the PUSCH. When the DCI for scheduling the PUSCH adopts the reduced DCI format and the PUCCH resource configuration information does not include the beam indication information, or the DCI for scheduling the PUSCH does not include the SRI field, the terminal device may index the value q according to the configured multiple reference signals _d And determining the path loss estimation value of the PUSCH.

Δ _TFb,f,c (i) The parameter values related to the modulation scheme and the channel coding rate of the PUSCH transmission may be related to, for example, the type of information carried by the PUSCH (including, for example, carrying uplink shared channel (UL-SCH) data information or Channel State Information (CSI) information), the location or number of physical resources occupied by the PUSCH, and the like.

f _b,f,c (i, l) is a power adjustment value determined from a Transmit Power Control (TPC) command of a closed loop power control (power control) process l, which may also be understood as a power control adjustment state index value. The DCI sent by the network device may carry a TPC field, where the TPC field is used to indicate δ _PUSCH,b,f,c Parameter value (e.g. transmit power adjustment delta) _PUSCH,b,f,c ). The terminal device can determine delta according to _PUSCH,b,f,c To determine f _b,f,c The value of (i, l). When the DCI of the scheduling PUSCH is in a terminal equipment specific (UE specific) DCI format, only the configured specific terminal equipment detects the DCI of the scheduling PUSCH, and delta corresponding to the PUSCH is determined according to the mapping relation between the value of the SRI field in the DCI of the scheduling PUSCH and the power control adjustment state index value l _PUSCH,b,f,c (i, l). When the DCI for scheduling the PUSCH is in a common DCI format, the DCI for scheduling the PUSCH carries a power control adjustment state index value l with a value of 0 or 1; the terminal equipment only accumulates the TPC indication of the same value of l according to the value of the SRI field. When the DCI for scheduling the PUSCH adopts a simplified DCI format or does not include an SRI field, the power control adjustment state index value l =0.

When delta _PUSCH,b,f,c Is the accumulated value of the number of the data blocks,

wherein the content of the first and second substances,

delta representing all TPC signalling indications received within a period of time before the transmission opportunity i _PUSCH,b,f,c And accumulating. When the value of the SRI field received by the network equipment is associated with the index value l of the power control adjustment state, the terminal equipment resets f _b,f,c (k, l) =0, k =0, 1. When delta _PUSCH,b,f,c Is an absolute value, f _b,f,c (i,l)＝δ _PUSCH,b,f,c (i,l)。

Case two: the terminal may also determine the power headroom based on the reference PUSCH format, e.g., the PH calculated based on the reference PUSCH format satisfies formula (2):

wherein, P _CMAX,f,c The values of (a) satisfy the following ranges:

P _{CMAX_L,f,c} ≤P _CMAX,f,c ≤P _{CMAX_H,f,c} ；

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c –ΔT _C,c ,(P _PowerClass –ΔP _PowerClass )–MAX(MAX(MPR _c +ΔMPR _c ,A-MPR _c )+ΔT _IB,c +ΔT _C,c +ΔT _RxSRS ,P-MPR _c )}；

P _{CMAX_H,f,c} ＝MIN{P _EMAX,c ,P _PowerClass –ΔP _PowerClass }

wherein P is _EMAX,c Configured for a p-Max cell or configured for an additionPmax field in an NR-NS-PmaxList cell; p _PowerClass The value can be 23dBm, 26dB or 29dBm, 31dBm for the maximum UE power; delta T _IB,c The extra power tolerance is shown, and the value can be 0dB; delta T _C,c The value can be 1.5dB or 0dB; MPR represents Allowed Maximum Power Reduction (Allowed Maximum Power Reduction), A-MPR represents Additional Maximum Power Reduction (Additional Maximum Power Reduction); P-MPR represents Power Management Maximum Power Reduction (Power Management Maximum Power Reduction).

In the calculation of (3), it may be assumed that the parameter of the maximum power corresponding to the reference PUSCH satisfies: MPR =0db, a-MPR =0db, p-MPR =0db, tc =0db. P is _{O_PUSCH,b,f,c} (j) And alpha _b,f,c (j) Default value, PL, of reference PUSCH configured for network device _b,f,c (q _d ) The path loss reference signal index of the reference PUSCH in (1) is 0,l =0.

Case three: the terminal may also determine the power headroom based on the path loss reference signal of the PUSCH, for example, the PH calculated based on the path loss reference signal of the PUSCH satisfies formula (3):

wherein

In the calculation of (1), MPR =0dB, A-MPR =0dB, P-MPR =0dB, TC =0dB _{O_PUSCH，b，f，c} (j) And alpha _b，f，c (j) Default value, PL, configured for network device _b，f，c (q _d ) The path loss reference signal in (b) may be a path loss reference signal corresponding to a PUSCH, and l =0.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: the fourth generation (4 th generation, 4G), 4G system includes a Long Term Evolution (LTE) system, a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5 th generation, 5G) system such as new radio access technology (NR), and a future communication system such as 6G system, etc., as long as the communication system can realize signal transmission. The technical scheme of the embodiment of the application can be applied to low-frequency (lower than 6 GHz) scenes and high-frequency (more than 6 GHz) scenes. The technical scheme of the embodiment of the application is also suitable for scenes of homogeneous networks and heterogeneous networks, and is also suitable for frequency division multiplexing (FDD) and time division multiplexing (TDD) systems. The technical scheme of the embodiment of the application can also be suitable for Single-transmission receiving points (Single-TRP) or Multi-transmission receiving points (Multi-TRP), or derived scenes of the Single-TRP and the Multi-TRP. In addition, the type and number of the network devices are not limited in this embodiment, for example, the macro base station and the macro base station, the micro base station and the micro base station, and the multi-point cooperative transmission between the macro base station and the micro base station.

For example, a communication system shown in fig. 1 may be adopted, where the communication system is composed of a network device (including network device 1 and network device 2) and a terminal device, and in the communication system, the network device 1 may perform configuration of uplink and downlink resources, transmission of a downlink signal and reception of an uplink signal, and the terminal device may perform reception of a downlink signal and/or transmission of an uplink signal.

For another example, as shown in fig. 2, it is a schematic structural diagram of a mobile communication system to which the embodiment of the present application is applied. As shown in fig. 2, the mobile communication system includes a core network device 210, a radio access network device 220, and at least one terminal device (e.g., terminal device 230 and terminal device 240 in fig. 2). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. Or the mobile communication system comprises a core network device, at least two radio access network devices and at least one terminal device, as shown in fig. 3. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. Fig. 2 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 2. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

The PUSCH transmission reliability can be improved by cooperatively receiving and processing the PUSCH through a plurality of network devices, as shown in fig. 4, the PUSCH is cooperatively received and processed through two network devices (network device 1 and network device 2), one of the network devices transmits DCI for scheduling the PUSCH, both the network devices can receive the PUSCH at an RB position indicated by the DCI, and the PUSCH can be transmitted in a time domain repetition manner. The PUSCH repeatedly transmits the same Transport Block (TB) in different time using different precoding manners, and the network device may notify the terminal device of the number of repetitions of transmitting the PUSCH in a time domain (also referred to as symbol set), and may also notify the terminal device of the precoding manner used in each repetition transmission. Taking the example of sending 2 times of repeated data on the PUSCH, the 2 times of repeated data are sent on the first PUSCH repetition and the second PUSCH repetition, respectively.

The precoding method may be understood as beamforming (beamforming), that is, when a transmitting end has multiple transmitting antennas, amplitude or phase weighting is generated between the transmitting antennas when the transmitting end transmits a same signal, so that the transmitting signal forms a directional beam in a transmission space, that is, different precoding methods may refer to using different beams (corresponding to an analog precoding mechanism, a terminal device may change a beam by changing a phase of a phase shifter), an antenna port, or an antenna virtualization method (corresponding to a digital precoding mechanism, a terminal device may generate different beams by using digital weights between different antennas), thereby improving transmission efficiency.

For example, the precoding scheme 1 is beneficial to the reception of the network device 1, the precoding scheme 2 is beneficial to the reception of the network device 2, and the network device may notify the terminal device to transmit the first beam corresponding to the precoding scheme 1 when transmitting the first PUSCH repetition, and to transmit the second beam corresponding to the precoding scheme 2 when the terminal device transmits the second PUSCH repetition.

For the terminal device, different precoding manners correspond to different beams, for example, SRI =0 corresponding to symbol set 0, SRI =1 corresponding to symbol set1, and PUSCH repetition corresponding to different beams (on different symbol sets) may use independent power control parameters, that is, the terminal device may determine the transmission power value used by the PUSCH at different times (symbol sets) according to the mapping relationship between the SRI and the power control parameters.

In a scenario of multi-TRP cooperation, PUSCHs corresponding to two different beams are repeatedly transmitted on the same serving cell, and the transmission powers of the PUSCH repetitions corresponding to the two different beams may be different. At this time, when considering that the network device schedules the uplink power of the first PUSCH repetition and the second PUSCH repetition for the terminal device, the terminal device may need to report the power headroom of the PUSCH repetition corresponding to different beams. However, the current method for reporting power headroom by a terminal device determines and reports power headroom based on a PUSCH on a serving cell, and cannot repeatedly determine and report the respective power headroom for a PUSCH corresponding to each beam. In order to enable a network device to better schedule uplink power of a terminal device, embodiments of the present application provide a communication method, which implements reporting of multiple power margins corresponding to multiple beams, and improves performance of the network device in scheduling uplink power.

Example 1

In consideration of a scenario (scenario 1) in which repeated data may be transmitted, in order to ensure the transmission performance of the PUSCH, the present application proposes a communication method. Fig. 5 is a schematic flowchart of a communication method according to an embodiment of the present disclosure. The method specifically comprises the following steps:

s501: the terminal equipment acquires uplink transmission resources.

The uplink transmission resource obtained by the terminal device may include multiple types, for example, the terminal device may obtain the uplink transmission resource in a manner scheduled by the network device, may obtain the uplink transmission resource in a manner selected by the resource pool itself, or may obtain the uplink transmission resource in a preconfigured manner. The following is an example of network device scheduling.

In a possible implementation manner, taking the first network device as a network device that schedules uplink transmission resources of the terminal device as an example, the first network device may configure the uplink transmission resources for the terminal device. For example, a first network device may send first configuration information to a terminal device. The first configuration information is used for indicating uplink transmission resources of the terminal equipment. Hereinafter, uplink transmission resources are described as PUSCH. The uplink transmission resource configured for the terminal device may include a PUSCH repetition for transmitting the repeated data. The following is exemplified by the modes a1 and a 2.

In the mode a1, the uplink transmission resource may include at least one PUSCH repetition, for example, taking repeated transmission for 2 times as an example, the uplink transmission resource may include: a first PUSCH repetition and a second PUSCH repetition on which the same transport block is transmitted.

In some embodiments, the beam corresponding to the first PUSCH repetition may be a first beam, for example, the uplink power control parameter corresponding to the first PUSCH repetition corresponds to the power control parameter of the first beam. The beam corresponding to the second PUSCH repetition may be a second beam, for example, the uplink power control parameter corresponding to the second PUSCH repetition corresponds to the power control parameter of the second beam.

In one possible implementation manner, the first configuration information sent by the first network device to the terminal device may be used to indicate the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition. After obtaining the first configuration information, the terminal device may determine the first PUSCH repetition and the second PUSCH repetition according to the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition.

In some embodiments, the first configuration information may further include configuration information of the first PUSCH repetition and configuration information of the second PUSCH repetition. That is, the first network device may transmit the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition to the terminal device.

Thus, the terminal device may determine the first PUSCH repetition and the first beam associated with the first PUSCH repetition based on the configuration information of the first PUSCH repetition and the second beam associated with the second PUSCH repetition based on the configuration information of the second PUSCH repetition after obtaining the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition. Alternatively, the terminal device may determine a first power control parameter corresponding to the first PUSCH repetition (e.g., the basic value P0 of the open-loop power control parameter corresponding to the first beam, the path loss compensation factor alpha, the path loss reference signal ID, etc.) based on the configuration information of the first PUSCH repetition, and the terminal device may determine a second power control parameter corresponding to the second PUSCH repetition (e.g., the basic value P0 of the open-loop power control parameter corresponding to the second beam, the path loss compensation factor alpha, the path loss reference signal ID, etc.) based on the configuration information of the second PUSCH repetition.

Accordingly, the terminal device may transmit the transport block to the first network device using the beam direction of the first beam when transmitting the transport block on the first PUSCH repetition on the first time domain resource. The first time domain resource may be a transmission opportunity corresponding to the first PUSCH repetition, and the first time domain resource may be determined by the terminal device based on the DCI indication transmitted by the first network device. The terminal device may transmit the transport block to the second network device using the beam direction of the second beam when transmitting the transport block on the second PUSCH repetition on the second time domain resource. The second time domain resource may be a transmission opportunity corresponding to the second PUSCH repetition, and the second time domain resource may be determined by the terminal device based on the DCI indication transmitted by the first network device.

In mode a2, the first configuration information may include at least one SRS resource set, where an SRS resource in each SRS resource set corresponds to one PUSCH repetition.

Also for example, the first configuration information may include: configuration information of the first set of SRS resources and configuration information of the second set of SRS resources. The first set of SRS resources and the second set of SRS resources correspond to different beams in the same serving cell. For example, the first set of SRS resources and the second set of SRS resources are resources in serving cell #1 (first serving cell).

The first set of SRS resources may be associated with a first beam of the first serving cell. Therefore, the configuration corresponding to the first PUSCH repetition may be related to the configuration of the first beam, or the uplink power control parameter corresponding to the first PUSCH repetition may be related to the power control parameter of the first beam.

The first and second PUSCH repetitions are mapped to transmit the same transport block. The second set of SRS resources may be associated with a second beam of the first serving cell. Therefore, the configuration corresponding to the second PUSCH repetition may be related to the configuration of the second beam, or the uplink power control parameter corresponding to the second PUSCH repetition may be related to the power control parameter of the second beam.

For example, as shown in fig. 6, the uplink grant resource configured by the first network device for the terminal device includes a first SRS resource set #1 and a second SRS resource set #2, where the first SRS resource set #1 includes a first PUSCH repetition, the first PUSCH repetition corresponds to a first beam, a path loss reference signal index (PL RS ID) corresponding to the first beam may be PL RS ID #1, the second SRS resource set #2 includes a second PUSCH repetition, the second PUSCH repetition corresponds to a second beam, and a path loss reference signal index corresponding to the second beam may be PL RS ID #2.

In a possible implementation manner, the first network device may send, to the terminal device, configuration information of the first SRS resource set and configuration information of the second SRS resource set.

Furthermore, the terminal device may obtain the first beam associated with the first SRS resource set according to the configuration information of the first SRS resource set, that is, the terminal device may obtain the first beam indicated in the first information. Or, the terminal device may obtain the first power control parameter indicated in the first information according to the configuration information of the first SRS resource set. Optionally, the terminal device may further obtain corresponding precoding information according to the configuration information of the first SRS resource set. Therefore, the terminal device may send the transmission blocks repeated by the first PUSCH to the first network device in the beam direction of the first beam at the transmission timing corresponding to the first SRS resource according to the configuration information or the corresponding precoding information of the first SRS resource set.

The terminal device may obtain the second beam associated with the second SRS resource set according to the configuration information of the second SRS resource set, that is, the terminal device may obtain the second beam indicated in the first information. Or, the terminal device may obtain the second power control parameter indicated in the first information according to the configuration information of the second SRS resource set. Optionally, the terminal device may further obtain corresponding precoding information according to the configuration information of the second SRS resource set. Therefore, the terminal device may send the second PUSCH repeated transport block to the second network device in the beam direction of the second beam at the transmission timing corresponding to the second SRS resource according to the configuration information of the second SRS resource set or the corresponding precoding information.

Correspondingly, when the terminal device obtains the first configuration information, it may also obtain an uplink scheduling signaling or configuration scheduling information to determine to send data on the uplink transmission resource. For example, the first network device may send the first indication information to the terminal device. In combination with the manner a1 and the manner a2, the first indication information may be used to instruct the terminal device to transmit the first PUSCH repetition and the second PUSCH repetition to the first network device in the first serving cell.

The first indication information may be transmitted simultaneously with the first configuration information or may be transmitted separately. For example, the first indication information may be carried in the same signaling as the first configuration information, or may be carried in a different signaling for transmission, which is not limited herein.

Optionally, the first network device may further send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first power headroom and the second power headroom in the power headroom report MAC CE.

Or, the first network device may further send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first field and the second field in the power headroom report MAC CE. The specific structures of the first field and the second field can be referred to below, and are not described herein again.

Accordingly, after the terminal device receives the fourth indication information, S503 and S504 may be executed after S502 is executed. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in the existing manner. Of course, the terminal device and the first network device may also negotiate whether to report the power headroom by using the structure of the power headroom report MAC CE in the embodiment of the present application in other manners, which is not limited herein.

Optionally, the terminal device may further report capability information to the first network device, where the capability information may be used to indicate that the terminal device supports PUSCH repetition, or the capability information may also be used to indicate that the terminal device supports the terminal device to report the first power headroom and the second power headroom in the power headroom report MAC CE, or the capability information may also be used to indicate that the terminal device supports the terminal device to report the first field and the second field in the power headroom report MAC CE.

Further, the first network device may determine that the power headroom report MAC CE reported by the terminal device is a structure including a first field and a second field. Or, the first network device and the terminal device may also negotiate in other manners, and report the first field and the second field in the power headroom report MAC CE, or report the first power headroom and the second power headroom in the power headroom report MAC CE.

Optionally, before the terminal device reports the capability information, the first network device may further send a capability request message to the terminal device, where the capability request message is used to request the terminal device to report the capability information. To save the overhead of terminal device signaling.

S502: and the terminal equipment triggers and reports the power headroom report.

With reference to scenario 1, the network device may send uplink scheduling signaling to the terminal device to instruct the terminal device to send the same transport block on the first PUSCH repetition and the second PUSCH repetition. For example, the terminal device may obtain first indication information for instructing the terminal device to transmit the first PUSCH repetition and the second PUSCH repetition to the first network device and the second network device, respectively.

At this time, the terminal device may determine whether to report the power headroom based on a condition that triggers reporting of the power headroom report.

In the embodiment of the present application, the following 7 trigger conditions may be defined, and when at least one of the following 7 trigger conditions is satisfied, the terminal device may trigger the reporting of the power headroom, that is, the terminal device sends a power headroom report.

The first trigger condition is: the PHR prohibit Timer (probibitphr-Timer) is overtime, and the path loss value of the serving cell is greater than or equal to a preset threshold value. The threshold may be phr-Tx-PowerFactorChange dB.

In the embodiment of the application, the terminal equipment side can set a prohibitPHR-Timer. When the prohibitPHR-Timer is overtime or overtime, and the path loss value of the serving cell is greater than the threshold, the terminal device may report the power headroom report to the network device through the data channel.

In an example of the first triggering condition, the path loss value of the serving cell may be configured by the network device for the terminal device, and the terminal device may restart the prohibitprr-Timer after reporting the power headroom report to the network device.

Optionally, before the terminal device determines whether the trigger condition is met, the terminal device may further obtain first trigger information and second trigger information, where the first trigger information includes a PHR prohibit transmission timer and/or a PHR cycle timer, and the second trigger information includes a PHR transmission power factor change value. Further, the terminal device may determine whether the trigger condition is satisfied based on the first trigger information and the second trigger information.

In a possible implementation manner, taking the first network device as an example to schedule the terminal device, the first network device may send the first trigger information and the second trigger information to the terminal device. It should be noted that the first trigger information and the second trigger information may be sent separately, or sent together with at least one of the first configuration information, the first information, and the second information, which is not limited herein.

In scenario 1, that is, in a scenario of multi-network device cooperative transmission, the second trigger information may further include PHR transmission power factor change values corresponding to the multiple network devices. For example, in a scenario of cooperative transmission between the first network device and the second network device, the second trigger information may include: a first PHR transmission power factor change value and a second PHR transmission power factor change value. The first PHR transmission power factor variation value corresponds to a first network device, and the second PHR transmission power factor variation value corresponds to a second network device.

In some embodiments, the first PHR transmission power factor change value may be a threshold value of a path loss of a first serving cell corresponding to the first network device, and the terminal device may determine whether the first serving cell (or the first beam) corresponding to the first network device meets a condition for triggering the reporting of the power headroom report according to whether the path loss change value of the first serving cell corresponding to the first network device exceeds the first PHR transmission power factor change value and whether the PHR transmission prohibition timer is expired. Or, the terminal device may determine whether the first PUSCH repetition satisfies a condition for triggering reporting of the power headroom report according to whether a path loss change value corresponding to the first PUSCH repetition (or a path loss reference signal corresponding to the first beam) exceeds a first PHR transmission power factor change value and whether a PHR transmission prohibition timer is expired.

The second PHR transmission power factor change value may be a threshold of a path loss of the first serving cell corresponding to the second network device, and the terminal device may determine whether the first serving cell corresponding to the second network device meets a condition for triggering reporting of the power headroom report according to whether the path loss change value of the first serving cell corresponding to the second network device exceeds the second PHR transmission power factor change value and whether the PHR prohibit sending timer expires. Or, the terminal device may determine whether the second PUSCH repetition satisfies a condition for triggering reporting of the power headroom report according to whether the path loss change value of the second PUSCH repetition (or the path loss reference signal corresponding to the second beam) exceeds the second PHR transmission power factor change value and whether the PHR transmission prohibition timer is expired.

For example, as shown in the example in fig. 6, the terminal device may determine that reporting of the power headroom report is triggered on the first PUSCH repetition according to that the path loss reference signal of the first serving cell or the first beam satisfies a condition for triggering reporting of the power headroom report.

The second trigger condition is: the PHR period Timer (periodicPHR-Timer) times out.

In the embodiment of the present application, the terminal device side may be provided with a periodicPHR-Timer. When the period PHR-Timer is overtime or overtime, the terminal equipment can report the power headroom report to the network equipment through the data channel. Further, after the terminal device reports the power headroom report to the network device, the periodicPHR-Timer may be restarted. For the second trigger condition, it may be considered that the terminal device periodically reports the power headroom report to the network device.

The third trigger condition: when PHR-related parameters or timers are reconfigured.

In this embodiment of the present application, if the terminal device receives first information sent by the network device, and the first information is used for a parameter value related to the reconfigured PHR or a value of the timer, the terminal device may report a power headroom report to the network device through a data channel. The first information may be a higher layer configuration or a re-configured power headroom reporting function.

The fourth trigger condition is: an uplink secondary serving cell (SCell) configured for the terminal device is activated.

In this embodiment, the secondary serving cell and the primary serving cell may be configured for the terminal device, and when the secondary serving cell is activated, the terminal device may report a power headroom report to the network device. For example, when any MAC entity activates a secondary cell and the first activated downlink BWP is not a dormant BWP, the terminal device may report a power headroom report to the network device.

Fifth trigger condition: and adding primary and secondary cells (PSCells) for the terminal equipment.

In the embodiment of the application, when the PSCell is added to the terminal equipment, the terminal equipment may be triggered to report the power headroom report.

Sixth trigger condition: the active bandwidth part is switched.

For example, when any MAC entity switches the dormant BWP to the non-dormant BWP, the end device may report the power headroom report to the network device.

A seventh trigger condition: the inhibit phr-Timer times out and a power management maximum power reduction (P-MPR), which may also be referred to as a power backoff value, is greater than or equal to a threshold value.

In this embodiment, for any SCell, when the prohibitPHR-Timer times out or times out, and the power backoff value is greater than or equal to the threshold, the terminal device may report a power headroom report to the network device through a data channel. The threshold of the power back-off value may be configured by the network device for the terminal device. Further, the terminal device may restart the prohibitprr-Timer after reporting the power headroom report to the network device.

S503, the terminal equipment determines the first power margin and the second power margin.

Wherein the first power headroom is determined repeatedly according to a first PUSCH, and the second power headroom is determined repeatedly according to a second PUSCH.

The terminal device may determine the first power headroom and the second power headroom in various manners, which is exemplified below with reference to the manners A1 to A3.

In the mode A1, the terminal device may repeatedly determine the first power headroom based on the first PUSCH and repeatedly determine the second power headroom based on the second PUSCH.

In connection with scenario 1, the terminal device is considered to determine the first PUSCH repetition and the second PUSCH repetition. Thus, the terminal device may repeatedly determine the first power headroom based on the first PUSCH and the second power headroom based on the second PUSCH.

In some embodiments, the terminal device may determine the power headroom of the first PUSCH repetition according to equation (1) in case one, and at least one of the first beam, the first power control parameter, or the first PUSCH repetition, and use the power headroom as the first power headroom. Determining a power headroom of the second PUSCH repetition according to equation (1) in case one and at least one of the second beam, the second power control parameter, or the second PUSCH repetition, and taking the power headroom as the second power headroom.

For example, the first power headroom may be determined based on a first PUSCH repetition for a first beam, and the second power headroom may be determined based on a second PUSCH repetition for a second beam.

In the mode A2, the terminal device may also determine the power headroom based on the reference PUSCH.

In one possible implementation, the terminal device may determine the power headroom based on equation (2) in case two.

In some embodiments, the terminal device may determine the power headroom of the first PUSCH repetition according to equation (1) in case one and use the power headroom as the first power headroom. And determining the power headroom of the reference PUSCH according to formula (2) in the case two, and taking the power headroom as a second power headroom.

In other embodiments, the terminal device may determine the power headroom of the second PUSCH repetition according to equation (1) in case one and use the power headroom as the second power headroom. And determining the power headroom of the reference PUSCH according to the formula (2) in the second case, and taking the power headroom as the first power headroom.

In the mode A3, the terminal device may further determine the power headroom based on the path loss reference signal corresponding to the beam.

One possible implementation may determine the power headroom based on equation (3) in case three.

In some embodiments, the terminal device may determine the power headroom of the first PUSCH repetition according to equation (1) in case one and use the power headroom as the first power headroom. And determining the power margin of the path loss reference signal corresponding to the second beam according to formula (3) in the third case, and taking the power margin as the second power margin.

In some embodiments, the terminal device may determine the power headroom of the second PUSCH repetition according to equation (1) in case one and use the power headroom as the second power headroom. And determining the power margin of the path loss reference signal corresponding to the first beam according to formula (3) in the third case, and taking the power margin as the first power margin.

S504: and the terminal equipment reports the first power headroom and the second power headroom.

With reference to scenario 1, the terminal device may transmit the first power headroom and the second power headroom on the first PUSCH repetition to the first network device. The terminal device may transmit the first power headroom and the second power headroom on a second PUSCH repetition to the second network device.

In one possible implementation, the first power headroom and the second power headroom may be carried on a power headroom report MAC CE for transmission. The power headroom report MAC CE may be transmitted on the first PUSCH repetition and the second PUSCH repetition.

Wherein triggering power headroom reporting may be related to the first PUSCH repetition or the second PUSCH repetition. For example, as shown in fig. 6, taking as an example that after it is determined that power headroom reporting is triggered, the terminal device determines that the transmittable uplink transmission resources are a first PUSCH repetition and a second PUSCH repetition according to uplink grant scheduling signaling (for example, the first indication information), at this time, the terminal device may send a power headroom report MAC CE to the first network device and the second network device on the first PUSCH repetition and the second PUSCH repetition, respectively, and the power headroom report MAC CE may carry the first power headroom and the second power headroom.

In some embodiments, the power headroom report MAC CE may include a first field and a second field. Wherein the first field may be used to indicate a first power headroom and the second field may be used to indicate a second power headroom. For example, the first field may be used to indicate a power headroom level of the first reported power headroom. The second field may be used to indicate a power headroom level of the reported second power headroom. For example, as shown in FIG. 7a, the first field (PH 1-1) may have a length of 6 bits, and the second field (PH 2-1) may have a length of 6 bits. Optionally, a maximum power indication field corresponding to the first power headroom may be further included in the power headroom report MAC CE, and the field may be used to indicate a maximum power value of the first power headroom, for example, P _CMAX,f,c1 . A maximum power indication field corresponding to the second power headroom may be further included in the power headroom report MAC CE, and may be used to indicate a maximum power value of the second power headroom, e.g., P _CMAX,f,c，1 。

The power headroom report MAC CE may further include a P field corresponding to the first power headroom, where a value of the P field needs to be set to satisfy (Maximum Permissible Exposure, MPE) requirements, or the P field is used to indicate whether the power headroom performs power backoff. The power headroom report MAC CE may further include a V field corresponding to the first power headroom, the V field indicating whether the PH value is calculated based on actual transmission or based on the reference PUSCH. For example, when the V field is 1, it may be used to indicate that the PH value is calculated based on an actual transmission, and when the V field is 0, it may be used to indicate that the PH value is calculated based on a reference PUSCH, and in the example shown in fig. 7a, a first power headroom (PH 1-1) of a first PUSCH repetition corresponding to a first beam may be calculated based on a first PUSCH repetition, and thus, the V field corresponding to the first power headroom may be 1. A second power headroom (PH 2-1) of a second PUSCH repetition corresponding to the second beam may be calculated based on the second PUSCH repetition, and thus, a V field corresponding to the second power headroom may be 1.

Optionally, the power headroom report MAC CE may include an indication field set. The indication field set may be used to indicate whether each carrier has a PHR for reporting, that is, as shown in fig. 7a, for the first network device, the indication field set may include 4 indication fields, which are respectively used to indicate whether a primary serving cell R and serving cells C1 to C3 of the first network device have PHR for reporting. For the second network device, the second network device may include 4 indication fields, which are respectively used to indicate whether the primary serving cell R and the serving cells C1 to C3 of the second network device have PHR to report. If the fields R and Ci indicate whether a PHR corresponding to the primary serving cell and the serving cell i exists, for example, when the indication field is 1, it may indicate that the serving cell corresponding to the indication field reports the PHR, and when the indication field is 0, it may indicate that the serving cell corresponding to the indication field does not report the PHR.

With reference to the example in fig. 6, the primary serving cell R in the power headroom report may be the first serving cell, and therefore, in the power headroom report MAC CE, the value of the indication field R is 1, and the values of the other indication fields C1 to C3 are 0.

Considering the case where multiple power headroom may be included in the power headroom report MAC CE, possible ways of ordering the power headroom and the indication fields in the power headroom report MAC CE are illustrated in the following manner one and manner two.

In a first manner, the multiple indication fields in the indication field set may be arranged in ascending order according to the serving cell index ServCellIndex corresponding to the indication fields, and then arranged in ascending order according to the beam index corresponding to the indication fields. Or, the indexes of the serving cells corresponding to the indication fields may be arranged in an ascending order, and then the indexes of the network devices corresponding to the indication fields may be arranged in an ascending order. For another example, the indexes of the serving cells corresponding to the indication field may be arranged in an ascending order, and then the indexes of the beam corresponding to the indication field (or the indexes of the path loss reference signals) may be arranged in an ascending order.

Correspondingly, the power headroom may be sorted in the following manner: the indexes of the serving cells corresponding to the power headroom are arranged in an ascending order, and then the indexes of the beam corresponding to the power headroom (or the indexes of the path loss reference signals) are arranged in an ascending order. Or, the indexes of the serving cells corresponding to the power headroom may be sorted in an ascending order, and then sorted in an ascending order according to the indexes of the beams corresponding to the power headroom. Or, the indexes of the serving cells corresponding to the power headroom may be sorted in ascending order, and then sorted in ascending order according to the indexes of the network devices corresponding to the power headroom.

In the manner of ascending the beam indexes corresponding to the power headroom, there may be a variety of alternative implementations. For example, in one possible implementation, the first field and the second field may be arranged in an ascending order based on the beam index of the beam, e.g., the beam index of the first beam precedes the beam index of the second beam, and the first field and the second field are arranged in an ascending order in the power headroom report MAC CE. In another possible implementation manner, the first field and the second field may be arranged in an ascending order based on SRS resource set indexes, for example, when an index of a first SRS resource set corresponding to a first beam precedes an index of a second SRS resource set corresponding to a second beam, the first field and the second field are arranged in an ascending order in the power headroom report MAC CE. In another possible implementation manner, the first field and the second field may be arranged in an ascending order based on path reference signal indexes, for example, when a path reference signal index of a path reference signal corresponding to a first power headroom precedes a path reference signal index of a path reference signal corresponding to a second power headroom, the power headroom report MAC CE is arranged in an ascending order according to the order of the first field and the second field. In another possible implementation, the first field and the second field may be arranged in an ascending order based on the indexes of the network devices, for example, if the index of the first network device precedes the index of the second network device, the power headroom report MAC CE is arranged in an ascending order according to the order of the first field and the second field.

The serving cell indexes corresponding to the indication fields may be arranged in an ascending order, which may be sequentially R, C1, C2, and C3. The ascending order of the serving cell indexes corresponding to the power headroom may be sequentially the power headroom corresponding to the primary serving cell R, the power headroom corresponding to the serving cell C1, the power headroom corresponding to the serving cell C2, and the power headroom corresponding to the serving cell C3.

Taking the TRP index (TRP # 1) of the first network device before the TRP index (TRP # 2) of the second network device as an example, the ordering of the indication fields may be as shown in fig. 7a, considering that the power headroom of the first serving cell (e.g., the primary serving cell R) in fig. 6 includes a first power headroom and a second power headroom. The first power headroom and the second power headroom may be carried on a power headroom field corresponding to the indication field R. For example, as shown in fig. 7a, the first field is used to indicate a first power headroom and the second field is used to indicate a second power headroom.

In the second mode, the plurality of indication fields in the indication field set may be first arranged in an ascending order according to the beam index corresponding to the indication field, and arranged in an ascending order according to the serving cell index corresponding to the indication field. Or, the indexes of the network devices corresponding to the indication fields may be arranged in an ascending order, and then the indexes of the serving cells corresponding to the indication fields may be arranged in an ascending order. For another example, the beam indexes (or path loss reference signal indexes) corresponding to the indication fields may be arranged in an ascending order, and then the serving cell indexes corresponding to the indication fields may be arranged in an ascending order.

Correspondingly, the power headroom may be sorted in the following manner: the method comprises the steps of firstly arranging the beam indexes (or path loss reference signal indexes or network equipment indexes or SRS resource set indexes) corresponding to the power headroom in an ascending order, and then arranging the beam indexes (or path loss reference signal indexes or network equipment indexes or SRS resource set indexes) in an ascending order according to the serving cell indexes corresponding to the power headroom.

Or taking the TRP index (TRP # 1) of the first network device before the TRP index (TRP # 2) of the second network device as an example, the ordering manner of the indication fields may be the manner shown in fig. 7b, that is, the primary serving cell R of TRP #1, the primary serving cell R of TRP #2, the serving cell C1 of TRP #1, the serving cell C1 of TRP #2, the serving cell C2 of TRP #1, the serving cell C2 of TRP #2, the serving cell C3 of TRP #1, and the serving cell C3 of TRP #2 are in this order.

Consider that the power headroom of the first serving cell (e.g., primary serving cell R) in fig. 6 includes a first power headroom and a second power headroom. In the case that the power headroom has only one serving cell, the power headroom may be sorted based on the ascending order of the beam indexes, for example, the first beam index precedes the second beam index, as shown in fig. 7b, and the first power headroom and the second power headroom may be carried on the power headroom field corresponding to the indication field R. The first field is used to indicate a first power headroom (PH 1-1), and the second field is used to indicate a second power headroom (PH 2-1).

It should be noted that, in the embodiment of the present application, the beam indexes are arranged in an ascending order according to the beam indexes corresponding to the power headroom, which is described as an example, and certainly, the power headroom based on the beam indexes may also be arranged in other manners, for example, in a descending order, or in a random order, and a specific implementation manner may refer to the ascending order in the foregoing, which is not described again here. Hereinafter, the beam indexes are still arranged in an ascending order according to the beam indexes corresponding to the power headroom for example, and other ways are not described again.

Example two

With reference to scenario 1, as shown in fig. 8, a schematic flowchart of a communication method provided in the embodiment of the present application is shown. The method specifically comprises the following steps:

s801: the terminal equipment acquires uplink transmission resources.

The uplink transmission resource may include a first PUSCH repetition and a second PUSCH repetition. Specifically, the first PUSCH repetition and the second PUSCH repetition may be configured in the manner a1 and the manner a2 with reference to the first configuration information in S501, which is not described herein again.

Or, the first network device may further send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first field and the second field in the power headroom report MAC CE.

Accordingly, after receiving the fourth indication information, the terminal device may perform S803 and S804 after performing S802. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in the existing manner. Of course, the terminal device and the first network device may also negotiate whether to report the power headroom by using the structure of the power headroom report MAC CE in the embodiment of the present application in other manners, which is not limited herein.

S802: and the terminal equipment triggers and reports the power headroom report.

For details, reference may be made to S502, which is not described herein again.

S803, the terminal equipment determines the first field and the second field.

Wherein the first field indicates a first power headroom for a first PUSCH repetition and the second field indicates a second power headroom for a second PUSCH repetition. The second PUSCH repetition corresponds to the first beam and the second PUSCH repetition corresponds to the second beam. The determining manner of the first power headroom and the determining manner of the second power headroom may refer to the determining manner in S503, and are not described herein again.

S804, the terminal equipment reports the first field and the second field.

With reference to scenario 1, the terminal device reports the first field and the second field to the first network device on the first PUSCH repetition.

For example, the reporting mode in S504 may be referred to, that is, the first field and the second field may be power headroom fields in a power headroom report MAC CE.

The combination method I comprises the following steps: the reporting sequence is sorted according to the ascending order of the service cell indexes corresponding to the first field, and then sorted according to the ascending order of the service cell indexes of the second field; the first beam index and the second beam index are in ascending order relation.

For example, referring to fig. 6, a first power headroom is indicated in the first field, and a second power headroom is indicated in the second field, so the manner of reporting the first field and the second field may be as shown in fig. 7 a.

The combination mode II comprises the following steps: the reporting sequence is that the first field and the second field are sorted in an ascending order according to the beam indexes of the first field and the second field, and then the first field and the second field are sorted in an ascending order according to the serving cell indexes of the first field and the second field.

For example, referring to fig. 6, a first power headroom is indicated in the first field, and a second power headroom is indicated in the second field, so the manner of reporting the first field and the second field may be as shown in fig. 7 b.

There are also a number of alternative implementations of the manner in which the first and second fields are ordered based on the beam index. For example, in one possible implementation, the first field and the second field may be arranged in an ascending order based on indexes of the network devices, for example, if the index of the first network device precedes the index of the second network device, the power headroom report MAC CE is arranged in an ascending order according to the order of the first field and the second field. In another possible implementation, the first field and the second field may be arranged in an ascending order based on beam indexes of the beams, for example, the beam index of the first beam precedes the beam index of the second beam, and then the first field and the second field are arranged in an ascending order in the power headroom report MAC CE. In another possible implementation manner, the first field and the second field may be arranged in an ascending order based on SRS resource set indexes, for example, when an index of a first SRS resource set corresponding to a first beam precedes an index of a second SRS resource set corresponding to a second beam, the first field and the second field are arranged in an ascending order in the power headroom report MAC CE. In another possible implementation manner, the first field and the second field may be arranged in an ascending order based on path reference signal indexes, for example, when a path reference signal index of a path reference signal corresponding to a first power headroom precedes a path reference signal index of a path reference signal corresponding to a second power headroom, the power headroom report MAC CE is arranged in an ascending order according to the order of the first field and the second field.

By the method, the UE can report the power headroom conditions of the repetition corresponding to the two wave beam directions to realize reporting of the PHRs corresponding to the two TRPs and help the two TRPs to adjust the power of the PUSCH corresponding to the two TRPs.

Example three

In order to guarantee the transmission performance of the PUSCH, a communication method is proposed in consideration of a scenario (scenario 2) in which non-duplicate data may be transmitted. Fig. 9 is a schematic flowchart of a communication method according to an embodiment of the present application. The method specifically comprises the following steps:

s901: the terminal equipment acquires uplink transmission resources.

In a possible implementation manner, taking a network device that schedules uplink transmission resources of a terminal device as an example, the first network device may configure the uplink transmission resources for the terminal device.

For example, a first network device may send first configuration information to a terminal device. The first configuration information is used for indicating uplink transmission resources of the terminal equipment. Considering a scenario of sending non-duplicate data, the uplink transmission resource configured for the terminal device may include a PUSCH for sending non-duplicate data. At this time, the first configuration information is used to indicate configuration information of a third PUSCH, where the third PUSCH may be an uplink transmission resource corresponding to the first serving cell (e.g., serving cell # 1), and in conjunction with S401, the third PUSCH may be an uplink transmission resource that is repeatedly located in the same serving cell as the first PUSCH and the second PUSCH.

In addition, the uplink transmission resources that the terminal device can also obtain include: a first PUSCH repetition and a second PUSCH repetition. The obtaining manner of the first PUSCH repetition and the second PUSCH repetition may be determined with reference to the manner a1 and the manner a2, for example, the first configuration information carries configuration information of the first PUSCH repetition and configuration information of the second PUSCH repetition, and for another example, the terminal device may obtain configuration information of the first SRS resource set and configuration information of the second SRS resource set. The terminal device may determine the first PUSCH repetition according to the configuration information of the first SRS resource set, and determine the second PUSCH repetition according to the configuration information of the second SRS resource set.

For example, the third PUSCH corresponds to the first beam and/or the first power control parameter, and the configuration information of the third PUSCH may be used to indicate the configuration information corresponding to the first beam or the configuration information of the first power control parameter. Thus, after obtaining the configuration information of the third PUSCH, the terminal device may transmit data to the first network device on the third PUSCH by using the first beam. Correspondingly, when the terminal device triggers power headroom reporting on the third PUSCH, the terminal device may further determine the power headroom based on the third PUSCH, that is, determine the power headroom corresponding to the first beam.

In some embodiments, the first configuration information may also be used to indicate the first beam or to indicate the first power control parameter.

Therefore, when obtaining the first configuration information, the terminal device may determine, based on the first configuration information, a third PUSCH corresponding to the first beam. Or, when the terminal device obtains the first power control parameter, the terminal device may determine, based on the first power control parameter, a third PUSCH corresponding to the first power control parameter. For another example, when obtaining the first configuration information, the terminal device may determine the third PUSCH based on the first beam and the first power control parameter indicated in the first configuration information.

The terminal device may obtain the first beam associated with the first SRS resource set according to the configuration information of the first SRS resource set, that is, the terminal device may obtain the first beam indicated in the first configuration information. Or, the terminal device may obtain the first power control parameter indicated in the first configuration information according to the configuration information of the first SRS resource set. Optionally, the terminal device may further obtain corresponding precoding information according to the configuration information of the first SRS resource set. Therefore, the terminal device may send the third PUSCH transmission to the first network device in the beam direction of the first beam at the transmission opportunity corresponding to the first SRS resource according to the configuration information or the corresponding precoding information of the first SRS resource set.

Correspondingly, when the terminal device obtains the first configuration information, it may also obtain an uplink scheduling signaling or configuration scheduling information to determine that data is sent on the uplink transmission resource.

In one possible implementation, the first network device may send second indication information to the terminal device, where the second indication information may be used to indicate that the UE sends the third PUSCH transmission to the first network device in the first serving cell. And after receiving the second indication information, the terminal equipment adopts the beam direction of the first beam to send the third PUSCH transmission to the first network equipment at the transmission opportunity corresponding to the first SRS resource.

Accordingly, after the terminal device receives the fourth indication information, S903 and S904 may be executed after S902 is executed. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in the existing manner. Of course, the terminal device and the first network device may also negotiate whether to report the power headroom by using the structure of the power headroom report MAC CE in the embodiment of the present application in other manners, which is not limited herein.

Furthermore, the first network device may determine that the power headroom report MAC CE reported by the terminal device is a structure including a first field and a second field. Or, the first network device and the terminal device may also negotiate in other manners, and report the first field and the second field in the power headroom report MAC CE, or report the first power headroom and the second power headroom in the power headroom report MAC CE.

Optionally, before the terminal device reports the capability information, the first network device may further send a capability request message to the terminal device, where the capability request message is used to request the terminal device to report the capability information. To save signalling overhead for the terminal device.

S902: and the terminal equipment triggers and reports the power headroom report.

The terminal device may refer to 7 trigger conditions in S402 for triggering reporting of the power headroom report, and when one or more of the 7 trigger conditions are met, the terminal device may trigger reporting of the power headroom, that is, the terminal device sends the power headroom report.

Taking the first trigger condition as an example, in scenario 2, in consideration of a scenario of non-repeated data transmission, the terminal device may obtain the first trigger information and the second trigger information, and determine whether the trigger condition is satisfied based on the first trigger information and the second trigger information.

In some embodiments, the PHR transmission power factor change value may be a threshold value of a path loss of a first serving cell corresponding to the first network device, and the terminal device may determine whether the first serving cell corresponding to the first network device meets a condition for triggering a report of power headroom according to whether the path loss change value corresponding to the first network device exceeds the PHR transmission power factor change value and whether a PHR prohibition sending timer is expired, that is, determine whether a third PUSCH meets a condition for triggering a report of power headroom. Or, the terminal device may determine whether the third PUSCH satisfies a condition for triggering reporting of the power headroom report according to whether a path loss change value of the third PUSCH corresponding to the first network device exceeds a PHR transmission power factor change value and whether a PHR prohibit transmission timer is expired. In this embodiment, the PHR transmission power factor variation value may be the same as or different from the first PHR transmission power factor variation value, which is not limited herein.

And S903, the terminal equipment determines the first power headroom and the second power headroom.

In conjunction with scenario 2, considering that the terminal device may not obtain the second PUSCH repetition for the second beam, in this scenario, the terminal device may determine the first power headroom based on the third PUSCH. The terminal device may determine the second power headroom based on the reference PUSCH.

Wherein triggering power headroom reporting may be related to the third PUSCH. For example, as shown in fig. 10, taking as an example that after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is a third PUSCH repetition according to the uplink grant scheduling signaling (e.g., the second indication information), at this time, the terminal device may send a power headroom report MAC CE to the first network device on the third PUSCH, where the power headroom report MAC CE may carry the first power headroom and the second power headroom.

The following embodiments are described as embodiments B1 to B2.

In the method B1, the terminal device may determine the power headroom of the third PUSCH based on the third PUSCH according to formula (1), and use the power headroom of the third PUSCH as the first power headroom.

In the method B2, the terminal device may determine the power headroom of the reference PUSCH according to formula (2), and use the power headroom of the reference PUSCH as the first power headroom. Wherein the reference PUSCH may be a default P configured by the network device in case two _{O_PUSCH,b,f,c} (j) And alpha _b,f,c (j) The path loss reference signal index is 0, and

medium, MPR =0db, a-MPR =0db, p-MPR =0db, tc =0db, reference PUSCH.

S1004: and the UE reports the first power headroom and the second power headroom.

In one possible implementation, the first power headroom and the second power headroom are carried in a power headroom report MAC CE. In connection with scenario 2, the power headroom report MAC CE may be transmitted on the third PUSCH.

In one possible implementation manner, the power headroom report is a specific trigger condition, which is referred to as the trigger conditions of S402 and S902, and is not described herein again. Taking an example that after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is a third PUSCH repetition according to an uplink grant scheduling signaling (e.g., the second indication information), at this time, the terminal device may send a power headroom report MAC CE to the first network device on the third PUSCH, where the power headroom report MAC CE may carry the first power headroom and the second power headroom.

In some embodiments, the structure of the power headroom report MAC CE may be as shown in fig. 11a and 11b, where fig. 11a is an example of a manner of sorting the fields corresponding to the indication field and the power headroom in a combination manner, and fig. 11b is an example of a manner of sorting the fields corresponding to the indication field and the power headroom in a combination manner.

The power headroom report MAC CE may include an indication field and a set of power headroom fields. Each indication field in the indication field set is used for indicating whether the serving cell corresponding to the power headroom report has the reported power headroom. The set of power headroom fields includes a first field corresponding to a first power headroom and a second field corresponding to a second power headroom.

Wherein the set of power headroom fields may include a first field and a second field. Wherein the first field may be used to indicate a first power headroom and the second field may be used to indicate a second power headroom. For example, the first field may be used to indicate a power headroom level of the first reported power headroom. The second field may be used to indicate a power headroom level of the reported second power headroom. Illustratively, the length of the second field may be 6 bits, and the length of the first field may be 6 bits. Optionally, the first field may also be used to indicate a maximum power value of the first power headroom, e.g., P _CMAX,f,c . The second field may also be used to indicate a maximum power value for a second power headroom, e.g., P _CMAX,f,c 。

In this example, considering that the second power headroom is determined according to the reference PUSCH, in the power headroom report MAC CE, the V field corresponding to the second power headroom may be 0, and specifically, refer to fig. 11a and 11b.

Example four

With reference to scenario 2, as shown in fig. 12, a schematic flowchart of a communication method provided in the embodiment of the present application is shown. The method specifically comprises the following steps:

s1201: the terminal equipment acquires uplink transmission resources.

The uplink transmission resource may include a first PUSCH repetition, a second PUSCH repetition, and a third PUSCH. Specifically, the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH may be configured with reference to the first configuration information in S901, which is not described herein again.

Accordingly, after the terminal device receives the fourth indication information, S1203 and S1204 may be executed after S1202 is executed. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in the existing manner. Of course, the terminal device and the first network device may also negotiate whether to report the power headroom by using the structure of the power headroom report MAC CE in the embodiment of the present application in other manners, which is not limited herein.

Further, the first network device may determine that the power headroom report MAC CE reported by the terminal device is a structure including a first field and a second field. Alternatively, the first network device and the terminal device may also negotiate in other manners, and report the first field and the second field in the power headroom report MAC CE, or report the first power headroom and the second power headroom in the power headroom report MAC CE.

S1202: and the terminal equipment triggers and reports the power headroom report.

Reference may be made to S902, which is not described herein again.

S1203, the terminal equipment determines the first field and the second field.

Wherein the first field indicates a first power headroom of a third PUSCH, and the second field indicates a second power headroom of a reference PUSCH. The third PUSCH corresponds to the first beam. The determining manner of the first power headroom and the determining manner of the second power headroom may refer to the determining manner in S903, and are not described herein again.

S1204, the terminal equipment reports the first field and the second field.

With reference to scenario 2, the terminal device reports the first field and the second field to the first network device on the third PUSCH.

For example, the reporting mode in S904 may be referred to, that is, the first field and the second field may be power headroom fields in a power headroom report MAC CE. For a specific reported power headroom report MAC CE, reference may be made to the examples in fig. 11a and fig. 11b, which are not described herein again.

Example five

Consider a scenario (scenario 3) in which non-duplicate data and duplicate data may be transmitted simultaneously, e.g., duplicate data is transmitted on serving cell #1, triggering PUSCH reporting PHR to be in serving cell #2. Or, the non-repeated data is sent on the serving cell #1, and the PUSCH for reporting the PHR is triggered to be in the serving cell #2. In order to ensure the transmission performance of the PUSCH, the present application proposes a communication method. Fig. 13 is a schematic flowchart of a communication method according to an embodiment of the present application. The method specifically comprises the following steps:

s1301: the terminal equipment acquires uplink transmission resources.

In a possible implementation manner, taking a network device that schedules uplink transmission resources of a terminal device as an example, the first network device may configure the uplink transmission resources for the terminal device. For example, a first network device may send first configuration information to a terminal device. The first configuration information is used for indicating uplink transmission resources of the terminal equipment.

In consideration of a scenario that non-duplicate data and duplicate data may exist simultaneously, the uplink transmission resource configured for the terminal device may include a PUSCH for transmitting non-duplicate data and a PUSCH for transmitting duplicate data.

Or, taking repeat transmission 2 times as an example, the uplink transmission resource for transmitting the repeat data may include: a first PUSCH repetition and a second PUSCH repetition on which the same transport block is correspondingly transmitted. The first PUSCH repetition and the second PUSCH repetition correspond to the same serving cell, e.g., the first serving cell. For details of the first PUSCH repetition and the second PUSCH repetition, reference may be made to S401, which is not described herein again.

Accordingly, the first configuration information may include: configuration information for indicating the first PUSCH repetition and the second PUSCH repetition. In addition, the first configuration information may further include: configuration information for indicating a fourth PUSCH, which may be an uplink transmission resource corresponding to the second serving cell, i.e., the fourth PUSCH is an uplink transmission resource located in a different serving cell (e.g., serving cell # 2) from the first PUSCH repetition and the second PUSCH repetition.

The beam direction of the beam corresponding to the fourth PUSCH may be the same as the beam direction of the first beam or may be different from the beam direction of the first beam, or the power control parameter corresponding to the fourth PUSCH may be the same as the power control parameter corresponding to the first PUSCH repetition or may be different from the power control parameter corresponding to the first PUSCH repetition.

Optionally, the first network device may send first indication information to the terminal device, where the first indication information may be used to indicate that the UE sends the first PUSCH repeated transmission to the first network device in the first serving cell, and in addition, the first indication information may also be used to indicate that the UE sends the second PUSCH repeated transmission to the second network device in the first serving cell. Reference may be made specifically to S401. In contrast to S401, in S1301, the first network device may further send third indication information to the terminal device, where the third indication information may be used to indicate that the UE sends a fourth PUSCH transmission to the first network device in the second serving cell.

Accordingly, after the terminal device receives the fourth indication information, S1302 may be executed, and then S1303 and S1304 may be executed. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in the existing manner. Of course, the terminal device and the first network device may also negotiate whether to report the power headroom by using the structure of the power headroom report MAC CE in the embodiment of the present application in other manners, which is not limited herein.

Furthermore, the first network device may determine that the power headroom report MAC CE reported by the terminal device is a structure including a first field and a second field. Alternatively, the first network device and the terminal device may also negotiate in other manners, and report the first field and the second field in the power headroom report MAC CE, or report the first power headroom and the second power headroom in the power headroom report MAC CE.

S1302: and the terminal equipment triggers and reports the power headroom report.

Taking the first trigger condition as an example, in scenario 3, the PHR transmission power factor change value may be a threshold value of a path loss of the second serving cell corresponding to the first network device, and the terminal device may determine whether the fourth PUSCH satisfies a condition for triggering reporting of the power headroom report according to whether the path loss change value of the second serving cell corresponding to the first network device exceeds the PHR transmission power factor change value and whether the PHR prohibit sending timer is expired. Or, the terminal device may determine whether the fourth PUSCH satisfies a condition for triggering reporting of the power headroom report according to whether a path loss change value of the fourth PUSCH corresponding to the first network device exceeds a PHR transmission power factor change value and whether a PHR prohibit transmission timer is expired. It should be noted that, in this embodiment, the PHR transmission power factor variation value may be the same as or different from the second PHR transmission power factor variation value, and the PHR transmission power factor variation value may be the same as or different from the first PHR transmission power factor variation value, which is not limited herein.

And S1303, the terminal equipment determines the first power headroom and the second power headroom.

Considering a scenario in which non-duplicate data and duplicate data may be transmitted simultaneously, and PUSCH on the same serving cell may overlap in a time domain, in scenario 3, the terminal device may determine the first power headroom based on the first PUSCH repetition. The second power headroom may be repeatedly determined according to a second PUSCH or may be determined according to a path loss signal of the second PUSCH.

For example, consider a scenario in which PUSCHs on different serving cells may overlap in the time domain, or the terminal device may determine the first power headroom based on the third PUSCH. The second power headroom may be determined from a reference PUSCH transmission, the second power headroom may be repeatedly determined from a second PUSCH, or may be determined from a pathloss signal of the second PUSCH.

The following embodiments C1 to C4 are exemplified.

Mode C1: the terminal device may determine a power headroom of the first PUSCH repetition according to equation (1) in case one and at least one of the first beam, the first power control parameter, or the first PUSCH repetition, and use the power headroom as the first power headroom. Determining a power headroom of the second PUSCH repetition according to equation (1) in case one and at least one of the second beam, the second power control parameter, or the second PUSCH repetition, and taking the power headroom as the second power headroom.

Mode C2: the terminal device may determine a power headroom of the second PUSCH repetition according to formula (1) in case one and at least one of the second beam, the second power control parameter, or the second PUSCH repetition, and use the power headroom as the second power headroom. The terminal device may determine the power headroom repeated with reference to the PUSCH according to formula (2) in case two, and take the power headroom as the first power headroom. Alternatively, the terminal device may determine the power headroom according to the formula (3) in the third case and the path loss reference signal corresponding to the first beam or the first PUSCH repetition, and use the power headroom as the first power headroom.

Mode C3: the terminal device may determine a power headroom of the first PUSCH repetition according to formula (1) in case one and at least one of the first beam, the first power control parameter, or the first PUSCH, and use the power headroom as the first power headroom.

The terminal device may determine the power headroom repeated with reference to the PUSCH according to formula (2) in case two, and take the power headroom as the second power headroom. Alternatively, the terminal device may determine the power headroom according to the formula (3) in the third case and the path loss reference signal corresponding to the second beam, the second power control parameter, or the second PUSCH repeatedly, and use the power headroom as the second power headroom.

Mode C4: the terminal device may first determine a PUSCH repetition with an earlier transmission opportunity than a fourth PUSCH repetition, e.g., the first PUSCH repetition overlaps or partially overlaps with the fourth PUSCH in the time domain, and the second PUSCH repetition overlaps or partially overlaps with the fourth PUSCH in the time domain. At this time, the PUSCH repetition for determining the power headroom using equation (1) may be determined according to the transmission timing of the first PUSCH repetition and the transmission timing of the second PUSCH repetition.

For example, if the transmission timing of the first PUSCH repetition is earlier than the transmission timing of the second PUSCH repetition, the terminal device may determine the power headroom of the first PUSCH repetition according to equation (1) in case one and at least one of the first beam, the first power control parameter, or the first PUSCH, and use the power headroom as the first power headroom. The terminal device may determine the power headroom repeated with reference to the PUSCH according to formula (2) in case two, and take the power headroom as the second power headroom. Alternatively, the terminal device may determine the power headroom according to the formula (3) in the third case and the path loss reference signal corresponding to the second beam, the second power control parameter, or the second PUSCH repeatedly, and use the power headroom as the second power headroom.

For another example, if the transmission timing of the second PUSCH repetition is earlier than the transmission timing of the first PUSCH repetition, the terminal device may determine the power headroom according to formula (2) in case two or formula (3) in case three and at least one of the first beam, the first power control parameter, or the path loss reference signal corresponding to the first PUSCH repetition, and use the power headroom as the first power headroom. The terminal device may determine the power headroom of the second PUSCH repetition according to equation (1) in case one and take the power headroom as the second power headroom.

Mode C5: the terminal device may determine the power headroom of the third PUSCH according to formula (1) in case one and at least one of the first beam, the first power control parameter, or the third PUSCH, and use the power headroom as the first power headroom. And according to the formula (2) in the second case, determining the power headroom of the reference PUSCH, and taking the power headroom as a second power headroom.

Mode C6: the terminal device may determine a power headroom repeated by the third PUSCH according to formula (3) in case three and at least one of the first beam, the first power control parameter, or the path loss reference signal corresponding to the third PUSCH, and use the power headroom as the first power headroom. The terminal apparatus may determine the power headroom of the reference PUSCH repetition according to equation (2) in case two, and take the power headroom as the second power headroom.

Mode C7: the terminal device may determine the power headroom according to equation (2) in case two, and use the power headroom as the first power headroom and the second power headroom.

And S1304, the terminal equipment reports the first power headroom and the second power headroom.

In one possible implementation, the first power headroom and the second power headroom are carried in a power headroom report MAC CE. In conjunction with scenario 3, the power headroom report MAC CE may be transmitted on the fourth PUSCH.

In one possible implementation manner, the specific trigger condition of the power headroom report may be referred to as the trigger conditions in S402 and S1302, and is not described herein again. Wherein triggering power headroom reporting may be related to the fourth PUSCH. Taking an example that after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is a fourth PUSCH repetition according to an uplink grant scheduling signaling (e.g., a third indication information), at this time, the terminal device may send a power headroom report MAC CE to the first network device on the fourth PUSCH, where the power headroom report MAC CE may carry the first power headroom and the second power headroom.

In the following, in the modes D1 to D3, a possible way of reporting the first power headroom and the second power headroom based on the case where the fourth PUSCH and the first PUSCH repetition overlap with the second PUSCH repetition overlap in the time domain is illustrated.

In mode D1, the fourth PUSCH overlaps with one of the first PUSCH repetition and the second PUSCH repetition in the time domain.

Optionally, in consideration of a scenario that non-duplicate data and duplicate data may be transmitted simultaneously, the terminal device may obtain first indication information, where the first indication information is used to instruct the terminal device to respectively send the first PUSCH repetition and the second PUSCH repetition to the first network device and the second network device. Optionally, the terminal device may obtain second indication information, where the second indication information is used to instruct the terminal device to send a third PUSCH transmission to the first network device. Optionally, the terminal device may obtain third indication information, where the third indication information is used to instruct the terminal device to send a fourth PUSCH transmission to the first network device.

In one possible case, the first serving cell in which the fourth PUSCH is located has the same subcarrier spacing as the second serving cell in which the first and second PUSCH repetitions are located, and the slot in which the fourth PUSCH is located overlaps with one of the slot in which the first PUSCH repetition is located and the slot in which the second PUSCH repetition is located.

Taking the example that the second PUSCH repetition overlaps with the fourth PUSCH time domain, or the slot where the fourth PUSCH is located overlaps with the slot where the second PUSCH repetition is located, as shown in fig. 14, the slot where the fourth PUSCH is located overlaps with the second PUSCH repetition in slot 0 and slot 1 in time domain.

At this time, a first power headroom and a second power headroom may be determined based on the mode C1 or the mode C2, and the first power headroom and the second power headroom may be transmitted on a fourth PUSCH.

Wherein the first power headroom and the second power headroom may be reported at a power headroom report MAC CE. In a case that the power headroom report MAC CE includes the first power headroom and the second power headroom, reference may be made to the structures of the power headroom report MAC CEs in examples one to four, which are not described herein again.

Optionally, the terminal device may also report a third power headroom (PH 1-2) of the second serving cell corresponding to the fourth PUSCH. The determination manner of the third power headroom may be determined by referring to the formula (1) in the case one, and is not described herein again. The following description takes an example that the currently reported power headroom may include the first power headroom (PH 1-1), the second power headroom (PH 2-1), and the third power headroom (PH 1-2) of the second serving cell corresponding to the fourth PUSCH. Accordingly, there may be multiple reported structures of the MAC CE, and the following description is given by way of example in combination with the first and second manners.

In a first combination manner, as shown in fig. 15a, the power headroom report MAC CE may include a third field for indicating a third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The power headroom may be ordered in a manner that the first field, the third field, and the second field are ordered sequentially. Accordingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

The second combination manner, as shown in fig. 15b, may be a manner of sorting the time domain first and then sorting the frequency domain, and the sorting manner of the power headroom may be that the first field, the second field, and the third field are sorted sequentially. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Accordingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

In mode D2, the fourth PUSCH overlaps with more than one PUSCH time domain of the first PUSCH repetition and the second PUSCH repetition.

In a possible case, the fourth PUSCH overlaps with more than one of the first PUSCH repetition and the second PUSCH repetition in time domain may also be understood as that the subcarrier spacing of the second serving cell where the fourth PUSCH is located is smaller than the subcarrier spacing of the first serving cell where the first PUSCH repetition and the second PUSCH repetition are located, and the fourth PUSCH overlaps with more than one PUSCH repetition on the first serving cell in time domain. For example, as shown in fig. 16a, the fourth PUSCH is in a slot that overlaps the first PUSCH repetition and the second PUSCH repetition in slot 0 and slot 1 in time domain. Taking the example that the first PUSCH repetition overlaps with the fourth PUSCH time domain, or the slot where the fourth PUSCH is located overlaps with the slot where the first PUSCH repetition is located, as shown in fig. 16a, the slot where the fourth PUSCH is located overlaps with the first PUSCH repetition in slot 0 and the second PUSCH repetition in slot 1 in time domain. For another example, as shown in fig. 16b, the slot in which the fourth PUSCH is located overlaps with the first PUSCH repetition and the second PUSCH repetition in slot 0 in the time domain. Another possible scenario, the first PUSCH repetition and the second PUSCH repetition transmitted on the first serving cell are PUSCH repetition transmissions of type B.

At this time, a first power headroom and a second power headroom may be determined based on the mode C1 or the mode C3, and the first power headroom and the second power headroom may be transmitted on a fourth PUSCH. Optionally, the terminal device may determine the first power headroom and the second power headroom according to the manner C4. For example, in the serving cell #1, the terminal apparatus regards the first PUSCH repetition overlapping with the fourth PUSCH on the serving cell #2 as the first PUSCH repetition overlapping with the fourth PUSCH time domain. At this time, the terminal device may also determine the first power headroom and the second power headroom according to the manner C4.

The reported structure of the power headroom report MAC CE may refer to fig. 15a and fig. 15b, and is not described herein again.

In mode D3, the fourth PUSCH on serving cell #2 is repeated without overlapping with the first PUSCH on serving cell # 1. And/or the fourth PUSCH on serving cell #2 is repeated non-overlapping with the second PUSCH on serving cell # 1.

In the mode D3, there are many possible cases, which will be exemplified in fig. 17, fig. 18a, and fig. 18 b.

As shown in fig. 17, the terminal device determines that the first PUSCH repetition on slot 0 is not transmitted, the second PUSCH repetition on slot 1 is transmitted, and the fourth PUSCH overlaps in the time domain with the first PUSCH repetition on slot 0 and the second PUSCH repetition on slot 1. At this time, the terminal device may determine the first power headroom (e.g., determined according to the reference PUSCH) and the second power headroom (e.g., repeatedly determined according to the second PUSCH) according to the manner C5.

At this time, the structure of the reported power headroom report MAC CE can be referred to the examples of fig. 18a and 18 b.

In a first combination manner, as shown in fig. 18a, the power headroom report MAC CE may be sorted in a frequency domain first and then in a time domain, and may include a first field, a second field, and a third field, where the third field is used to indicate a third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The power headroom may be ordered in a manner that the first field, the third field and the second field are ordered sequentially. Accordingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

In a second combination manner, as shown in fig. 18b, the time domain may be sorted first and then the frequency domain may be sorted, and the sorting manner of the power headroom may be that the first field, the second field, and the third field are sequentially sorted. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Accordingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

As shown in fig. 19, the UE does not receive the second indication information, there is no PUSCH overlapping with the fourth PUSCH in the first serving cell in the time domain, or there is no PUSCH transmitted in the slot overlapping with the slot where the fourth PUSCH is located in the first serving cell, and the first serving cell is an active serving cell and is configured with the first and second SRS resource sets.

At this time, the terminal device may determine the first power headroom (e.g., determined according to the reference PUSCH) and the second power headroom (e.g., determined according to the reference PUSCH) according to manner C7.

At this time, the structure of the reported power headroom report MAC CE can be referred to the examples of fig. 20a and fig. 20 b.

In a first combination manner, as shown in fig. 20a, the power headroom report MAC CE may be sorted in a frequency domain first and then in a time domain, and may include a first field, a second field, and a third field, where the third field is used to indicate a third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The power headroom may be ordered in a manner that the first field, the third field and the second field are ordered sequentially. Accordingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

The second combination manner, as shown in fig. 20b, may be a manner of sorting the time domain first and then sorting the frequency domain, and the sorting manner of the power headroom may be that the first field, the second field, and the third field are sorted sequentially. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Accordingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

As shown in fig. 21, the UE receives first indication information, where the first indication information is used to instruct the UE to send a first PUSCH repetition and a second PUSCH repetition to the first network device and the second network device, respectively, or the third indication information is used to instruct the UE to send a third PUSCH transmission to the first network device. And the first serving cell is an activated serving cell and is configured with first and second SRS resource sets.

At this time, the terminal device may determine the first power headroom (e.g., repeatedly determined according to the first PUSCH) and the second power headroom (e.g., determined according to the reference PUSCH) according to the manner C6 or the manner C7.

In a first combination manner, as shown in fig. 22a, the power headroom report MAC CE may be sorted in a frequency domain first and then in a time domain, and may include a first field, a second field, and a third field, where the third field is used to indicate a third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The power headroom may be ordered in a manner that the first field, the third field, and the second field are ordered sequentially. Accordingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

In a second combination manner, as shown in fig. 22b, the first field, the second field, and the third field may be ordered sequentially. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Accordingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

In the prior art, only one power margin value can be reported by one serving cell; the invention allows reporting the power margin values corresponding to two TRPs in one serving cell. Reporting two PHRs in an mTRP PUSCH repetition scene, wherein the UE can report the power headroom conditions of the repetition corresponding to two beam directions, so that the PHRs corresponding to the two TRPs are reported, and the two TRPs are helped to adjust the power of the PUSCHs corresponding to the two TRPs. The PHR ranking in the PHR MAC CE is determined based on reporting two power headroom values in one serving cell.

Example six

With reference to scenario 3, as shown in fig. 23, a schematic flow chart of a communication method provided in the embodiment of the present application is shown. The method specifically comprises the following steps:

s2301: the terminal equipment acquires uplink transmission resources.

The uplink transmission resource may include a first PUSCH repetition, a second PUSCH repetition, and a fourth PUSCH. Specifically, reference may be made to configuration of the first PUSCH repetition, the second PUSCH repetition, and the fourth PUSCH of the first configuration information in S1301, which is not described herein again.

Or, the first network device may further send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first field and the second field in the power headroom report MAC CE. For the specific structures of the first field and the second field, reference may be made to the following description, and details are not described herein.

Accordingly, after the terminal device receives the fourth indication information, S2303 and S2304 may be performed after S2302 is performed. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in the existing manner. Of course, the terminal device and the first network device may also negotiate whether to report the power headroom by using the structure of the power headroom report MAC CE in the embodiment of the present application in other manners, which is not limited herein.

Optionally, the terminal device may further report capability information to the first network device, where the capability information may be used to indicate a capability of the terminal device to support PUSCH repetition, or the capability information may also be used to indicate that the terminal device supports the terminal device to report the first power headroom and the second power headroom in the power headroom report MAC CE, or the capability information may also be used to indicate that the terminal device supports the terminal device to report the first field and the second field in the power headroom report MAC CE.

S2302: and the terminal equipment triggers and reports the power headroom report.

Specifically, reference may be made to S1302, which is not described herein again.

S2303, the terminal device determines the first field and the second field.

Wherein the first field indicates a first power headroom of a first PUSCH repetition or a first power headroom of a reference PUSCH, and the second field indicates a second power headroom of a second PUSCH repetition or a second power headroom of the reference PUSCH. The first PUSCH repetition corresponds to a first beam. The second PUSCH repetition corresponds to a second beam. The determining manner of the first power headroom and the determining manner of the second power headroom may refer to the determining manner in S1303, which is not described herein again.

And S2304, the terminal equipment reports the first field and the second field.

In combination with scenario 3, the terminal device reports the first field and the second field to the first network device on the fourth PUSCH.

For example, the reporting mode in S1304 may be referred to, that is, the first field and the second field may be power headroom fields in a power headroom report MAC CE. For a specific manner of reporting the power headroom report MAC CE, reference may be made to examples in fig. 15a to 15b, fig. 18a to 18b, fig. 20a to 20b, and fig. 22a to 22b, which are not described herein again.

Considering CA, the UE needs to report PHR corresponding to multiple carriers in one MAC CE. In this scenario, the structure of the power headroom report MAC CE may include PHR of the plurality of cells. In this application, the power headroom report MAC CE may include a PHR corresponding to at least one carrier corresponding to the multiple network devices.

In some embodiments, a set of power headroom fields may be included in the power headroom report MAC CE. The set of power headroom fields includes a power headroom field on at least one carrier corresponding to the first network device and a power headroom field on at least one carrier corresponding to the second network device. For example, the power headroom field on the at least one carrier corresponding to the first network device may include a first field, which may be used to indicate a first power headroom on a first serving cell corresponding to the first network device. The power headroom field on the at least one carrier corresponding to the second network device may include a second field, which may be used to indicate a second power headroom on the first serving cell corresponding to the second network device.

Considering a case that a plurality of power headroom may be included in the power headroom report MAC CE, and a plurality of power headroom may be included in the power headroom report MAC CE, possible manners of ordering of power headroom in the power headroom report MAC CE are illustrated in a first manner and a second manner below.

In the first method, the power headroom report MAC CE may be sorted according to the serving cell index first and then according to the beam index. Another possible implementation manner is that the ranking of the power headroom in the rate headroom report MAC C may be first ascending according to the serving cell index and then ascending according to the SRS resource set index. Another possible implementation manner is that the ranking of the power headroom in the rate headroom report MAC C may be first ascending according to the serving cell index and then ascending according to the path loss reference signal index.

Also, taking the example that the index of the first network device precedes the index of the second network device (of course, the beam index of the first beam precedes the beam index of the second beam, or the loss reference signal index of the first beam precedes the loss reference signal index of the second beam), in this case, as shown in fig. 24, the power headroom report may include: a set of power headroom fields of the first network device and a set of power headroom fields of the second network device. The set of power headroom fields for each network device may be ordered in ascending order by serving cell index.

Taking the first network device as an example, the set of power headroom fields of the first network device includes 4 power fields (e.g., PH1-1 to PH1-4 shown in fig. 7 a) of 4 serving cells (serving cell R, serving cells C1 to C3) corresponding to the first network device. PH1-1 to PH1-4 may be arranged in sequence in the set of power headroom fields.

For example, the serving cell R corresponding to the first network device may be a primary serving cell and a secondary serving cell of the terminal device, and correspondingly, PH1 may be indication information of a power headroom measured in the primary serving cell and the secondary serving cell. Here, the PH1-1 may also be indication information of a power headroom of type 2 (type 2). Wherein the PH of type 2 may be the difference between the terminal device nominal maximum transmit power and the estimated power of UL-SCH and PUCCH transmissions on the primary and secondary cell (SpCell) of another MAC entity (i.e., e-UTRANAC entity under EN-DC).

Optionally, after the PH1-1 field, the method may further include: the maximum transmission power field (carrying Pcmax 1) corresponding to the primary and secondary serving cells. The power headroom report MAC CE may further include a P field whose value is set to satisfy MPE requirements or to indicate whether the power headroom performs power backoff. The power headroom report MAC CE may further include a V field indicating whether the PH value is calculated based on actual transmission or based on a reference format.

The power headroom report MAC CE may also include a PH field (carrying PH 1-2) of the first network device or primary serving cell of the first beam and a corresponding maximum transmission power field (carrying Pcmax 2). For example, PH1-2 may be indication information of a PH of the primary serving cell of the first beam or the first network device. PH2 may be indication information of a type 1 power headroom, for example, PH1-2 may be a power headroom level correspondingly measured by a primary serving cell (PCell) of the first network device. For example, PH1-2 may be the first power headroom in the example of FIG. 6.

Optionally, PH1-3 or PH1-4 may be indication information of a PH of a non-primary serving cell (secondary serving cell) corresponding to the first network device. Optionally, in the power headroom report MAC CE, for a PH field of a non-primary serving cell (secondary serving cell) corresponding to the first network device, the PH field of the non-primary serving cell (e.g., secondary serving cell) corresponding to the one or more X types of first network devices and a corresponding maximum transmission power field may also be included. For example, the power headroom report MAC CE may include a PH field of a type of PH, which may be a PH of a PUSCH, and a corresponding maximum transmission power field. The power headroom report MAC CE may include a PH field of three types of PHs, which may be PHs of SRS, and a corresponding maximum transmission power field. For example, PH3 may be indication information of a power headroom of type X, for example, a value of type X may be 1 or 3, where a PH with a value of type X of 1 may be a power headroom corresponding to a PUSCH. The PH with type X of 3 may be a power headroom corresponding to the SRS.

The power headroom report MAC CE may also include a PH field (e.g., PH 2-1), if any, of a primary serving cell of the second network device and a corresponding maximum transmission power field for the power headroom of the second network device.

Optionally, the power headroom report MAC CE may further include a PH field (e.g., PH2-2 to PH 2-4) of a non-primary serving cell (e.g., a secondary serving cell) corresponding to the second network device, where the PH field may be selectable based on an ascending order of serving cell indexes, and the PH field of the primary serving cell of the second network device may further include a PH field and a corresponding maximum transmission power field of one or more types of primary serving cells of the second network device. For example, the power headroom report MAC CE may include a PH field (e.g., PH2-3 or PH 2-4) of a type of PH, which may be a PH of the PUSCH, and a corresponding maximum transmission power field. The power headroom report MAC CE may include a PH field of three types of PHs (e.g., PH2-3 or PH 2-4), which may be PHs of SRS, and a corresponding maximum transmission power field.

Considering the case that the power headroom report MAC CE may include power headroom of more than 8 serving cells, as in the example shown in fig. 25a and fig. 25b, still in combination, in the scenario of 2 network devices, power headroom of at most 16 serving cells may be included. Of course, the number of power headroom that can be included in the power headroom report MAC CE is not limited in this application. The specific indication fields may be ordered in a manner that different beam indexes in each row account for half of each other, as shown in fig. 25a, where each row may be ordered according to the beam indexes, for example, the indication fields corresponding to the serving cells in the first beam corresponding to the first network device are first arranged, and the indication fields corresponding to the serving cells in the second beam corresponding to the second network device are then arranged. The indication fields of the different rows may be arranged in ascending order according to the serving cell index.

As shown in fig. 25b, the indication fields corresponding to the serving cells in the first beam corresponding to the first network device may be arranged first, and then the indication fields corresponding to the serving cells in the second beam corresponding to the second network device may be arranged.

The fields corresponding to the power headroom may be sorted in a combination manner, which may specifically refer to the sorting manner of the power headroom in fig. 25a and 25b, that is, sorting according to the serving cell index of the power headroom corresponding to each network device or each beam, and then sorting according to the beam index corresponding to each power headroom, which is not described herein again.

In the second mode, the power headroom report MAC CE may be sorted according to the beam index first and then according to the serving cell index. In another possible implementation manner, the ordering of the power headroom in the power headroom set may be performed first according to the SRS resource set index ascending order and then according to the serving cell index ascending order. In another possible implementation manner, the ordering of the power headroom in the power headroom set may be ascending according to the pathloss reference signal index first and then ascending according to the serving cell index.

For example, as shown in fig. 26, the fields corresponding to the power headroom may be sorted in a combination manner two, that is, the power headroom is sorted according to the beam index first, and then sorted according to the serving cell index of the power headroom, which is not described herein again.

Example seven

Consider a scenario in which the transmission occasions of duplicate data are sequential (scenario 4). In order to ensure the transmission performance of the PUSCH, the present application proposes a communication method. Fig. 27 is a schematic flowchart of a communication method according to an embodiment of the present application. The method specifically comprises the following steps:

s2701: the terminal equipment acquires uplink transmission resources.

Or, taking repeated transmission for 2 times as an example, the uplink transmission resource for transmitting the repeated data may include: a first PUSCH repetition and a second PUSCH repetition on which the same transport block is correspondingly transmitted. The first PUSCH repetition and the second PUSCH repetition correspond to the same serving cell, e.g., the first serving cell. For details of the first PUSCH repetition and the second PUSCH repetition, reference may be made to S401, which is not described herein again.

Optionally, the first PUSCH repetition and the second PUSCH repetition are located on the same carrier; optionally, the first PUSCH repetition and the second PUSCH repetition are located in different serving cells of the same carrier; optionally, the first PUSCH repetition and the second PUSCH repetition correspond to a first carrier and a second carrier, respectively, and the first carrier and the second carrier are independent carriers.

The first PUSCH repeatedly corresponds to a first beam/a first power control parameter/a path loss reference signal; the second PUSCH repeats for the second beam/second power control parameter/path loss reference signal. That is, the transmission power of the first PUSCH repetition is determined by the first power control parameter/path loss reference signal, and the transmission power of the second PUSCH repetition is determined by the second power control parameter/path loss reference signal.

Accordingly, the first configuration information may include: configuration information for indicating the first PUSCH repetition and the second PUSCH repetition. Optionally, the first configuration information may further include: the configuration information for indicating the third PUSCH may be an uplink transmission resource corresponding to the first serving cell, i.e., the first PUSCH is an uplink transmission resource located in the same serving cell (e.g., serving cell # 1) as the first PUSCH repetition and the second PUSCH repetition.

Optionally, the first configuration information may further include: configuration information for indicating a fourth PUSCH, which may be an uplink transmission resource corresponding to the second serving cell, i.e., the fourth PUSCH is an uplink transmission resource located in a different serving cell (e.g., serving cell # 2) from the first PUSCH repetition and the second PUSCH repetition.

S2702: and the terminal equipment triggers and reports the power headroom report.

The terminal device may refer to 7 trigger conditions in S402 for triggering reporting of the power headroom report, and when one or more of the 7 trigger conditions are met, the terminal device may trigger reporting of the power headroom, that is, the terminal device sends the power headroom report. Specifically, reference may be made to the trigger conditions in scenes 1 to 3, which are not described herein again.

S2703: and determining whether the transmission opportunity of the PUSCH triggering the reporting of the power headroom report meets a preset condition. If so, perform S2704, otherwise, perform S2705.

S2704: reporting a power headroom.

In a possible implementation manner, the terminal device may report a power headroom to the first network device.

In some embodiments, the preset condition may be: the PUSCH triggering reporting of the power headroom report is a first PUSCH repetition, and the first PUSCH repetition is a first repeated transmission opportunity.

In the mode E1, for example, the first beam corresponds to a first impairment reference signal, and the second beam corresponds to a second impairment reference signal. And triggering repeated PHR reporting of a first PUSCH when a path loss change value measured by the first path loss signal exceeds a preset value and a PHR prohibition timer expires. Determining to report a power headroom of a first PUSCH repetition when a transmission opportunity of the first PUSCH repetition is earlier than a transmission opportunity of a second PUSCH repetition.

For determining the first power headroom, reference may be made to the manner of determining the power headroom of the first PUSCH repetition in examples one to six, which is not described herein again.

In the mode E2, the first beam corresponds to the first channel loss reference signal, and the second beam corresponds to the second channel loss reference signal. And triggering PHR report of a third PUSCH when the path loss change value measured by the first path loss signal exceeds a preset value and the PHR prohibition timer expires.

And when the transmission time of the third PUSCH is earlier than the repeated transmission time of the second PUSCH, determining to report the power headroom of the third PUSCH. For the manner of determining the power headroom of the third PUSCH, reference may be made to the manner of determining the power headroom of the third PUSCH in examples one to six, which is not described herein again.

In other embodiments, the preset condition may be: the PUSCH triggering reporting of the power headroom report overlaps with the first PUSCH repetition in the time domain, and the first PUSCH repetition is a first repeated transmission opportunity.

In the mode E3, the first beam corresponds to the first path loss reference signal, and the second beam corresponds to the second path loss reference signal. And triggering the repeated PHR report of a fourth PUSCH when the path loss change value measured by the first path loss signal exceeds a preset value and the PHR prohibition timer expires.

The fourth PUSCH overlaps with the first PUSCH repetition in the time domain, and the fourth PUSCH does not overlap or partially overlaps with the second PUSCH repetition in the time domain. And determining to report the power headroom of the first PUSCH repetition when the transmission opportunity of the first PUSCH repetition is earlier than the transmission opportunity of the second PUSCH repetition.

For determining the power headroom of the first PUSCH repetition, reference may be made to the manner of determining the power headroom of the first PUSCH repetition in examples one to six, which is not described herein again.

In other embodiments, the preset condition may be: and triggering the reporting of the power headroom report of the first beam and the reporting of the power headroom report of the second beam, and reporting the power headroom of the PUSCH with the early transmission opportunity.

In the mode E4, the PHR trigger conditions corresponding to the two TRPs are both satisfied, for example, when the path loss measured by the repeated path loss reference signals of the two PUSCHs changes, both the paths exceed a preset value, and the PHR prohibit timer expires; or, if both the first PUSCH repetition and the second PUSCH repetition are triggered to report the PHR, reporting the PHR of the previous PUSCH repetition, or reporting the PHR of the PUSCH repetition of the first transmission opportunity.

For example, the power headroom for reporting the first PUSCH repetition is determined when the transmission timing of the first PUSCH is earlier than the transmission timing of the second PUSCH repetition. For the manner of determining the first power headroom, reference may be made to the manner of determining the power headroom of the first PUSCH repetition in examples one to six, which is not described herein again.

For another example, when the transmission timing of the second PUSCH is earlier than the transmission timing of the first PUSCH repetition, the power headroom for reporting the second PUSCH repetition is determined. For the manner of determining the power headroom of the second PUSCH repetition, reference may be made to the manner of determining the power headroom of the second PUSCH repetition in examples one to six, which is not described herein again.

In mode E5, the first beam corresponds to the first path loss reference signal, and the second beam corresponds to the second path loss reference signal. And triggering PHR report of a third PUSCH when a path loss change value measured by the first path loss signal exceeds a preset value and a PHR prohibition timer expires. And triggering repeated PHR reporting of a second PUSCH when the path loss change value measured by the second path loss signal exceeds a preset value and the PHR prohibition timer expires.

When the transmission timing of the third PUSCH is earlier than the transmission timing at which the second PUSCH repeats, a power headroom corresponding to reporting the first beam on the third PUSCH (e.g., the power headroom of the third PUSCH) is determined. For the manner of determining the power headroom of the third PUSCH, reference may be made to the manner of determining the power headroom of the third PUSCH in examples one to six, which is not described herein again.

In the mode E6, the fourth PUSCH is repeatedly overlapped with the first PUSCH in the time domain, and the PHR of the fourth PUSCH is triggered. And triggering repeated PHR reporting of a second PUSCH when the path loss change value measured by the second path loss signal exceeds a preset value and the PHR prohibition timer expires.

And when the transmission time of the fourth PUSCH is earlier than the repeated transmission time of the second PUSCH, determining the power headroom corresponding to the first beam reported on the fourth PUSCH. For determining the manner of reporting the power headroom corresponding to the first beam on the fourth PUSCH, reference may be made to the manner of determining the power headroom corresponding to the first beam on the fourth PUSCH in examples five to six, which is not described herein again.

In some embodiments, the terminal device reports the first power headroom on a fifth PUSCH when the fifth PUSCH triggers the first power headroom report; the transmission timing of the fifth PUSCH precedes the transmission timing of the second PUSCH repetition, the transmission timing of the first PUSCH repetition precedes the transmission timing of the second PUSCH repetition;

the first power headroom is determined according to a first PUSCH repetition, the first PUSCH repetition corresponds to the first transmission beam or the first power control parameter, and the first PUSCH repetition and a second PUSCH repetition are used to transmit repetition data; the second transmit beam or the second power control parameter is repeated for the second PUSCH.

In one possible implementation, the fifth PUSCH satisfies: the fifth PUSCH is the first PUSCH repetition; alternatively, the fifth PUSCH and the first PUSCH repetition overlap or partially overlap in time domain.

In a possible implementation manner, when the PHR trigger conditions corresponding to the first PUSCH and the second PUSCH are not satisfied, the terminal device determines the reported PHR according to a second preset condition. The second preset condition is as follows: the value of PHR is larger. So that the base station can improve the coverage performance of the UE by configuring more resources.

In a possible implementation manner, when reporting the PHR, the terminal device may carry TRP information corresponding to the reported PHR, where the TRP information may be TRP identifier information, an SRS resource set index value, or a power control parameter set index value.

S2705: and the terminal equipment cancels the determination and reports the power allowance.

In one possible implementation, the second power headroom is determined repeatedly according to the second PUSCH; the method further comprises the following steps: and when a sixth PUSCH triggers a second power headroom report, cancelling the report of the second power headroom, wherein the transmission time of the sixth PUSCH is later than the repeated transmission opportunity of the first PUSCH. The sixth PUSCH satisfies: the fifth PUSCH is the second PUSCH repetition; alternatively, the sixth PUSCH and the second PUSCH repeat overlap or partially overlap in time domain.

In some embodiments, the case where the preset condition is not satisfied may be that the first PUSCH repetition is not the first PUSCH transmission occasion, or the second PUSCH repetition is the first PUSCH transmission occasion; alternatively, the first PUSCH repetition is not the first PUSCH transmission opportunity overlapping with the PUSCH carrying the PHR MAC CE, or the second PUSCH repetition is the first transmission opportunity overlapping with the PUSCH carrying the PHR MAC CE. The PHR is not calculated and is not reported.

By the method, the structure of the existing PHR MAC CE does not need to be changed, the UE only needs to report one PHR on one service cell, and the TRP identification information does not need to be added when the UE reports the PHR, so that the base station is informed of which PHR corresponding to the TRP is currently reported. In the prior art, the UE meets the PHR triggering condition, and uplink resources are required to be reported to the PHR. In the embodiment of the application, in an mTRP scenario, a UE needs to send a PUSCH repetition based on two independent beams/two independent sets of power control parameters, and only when a PHR corresponding to one beam is reported, it is necessary to determine that a TRP/beam/power control parameter meeting a PHR trigger condition is consistent with a first PUSCH transmission opportunity, and then the PHR can be reported. Otherwise, the PHR cannot be reported.

An embodiment of the present application provides a communication apparatus, which may have a structure as shown in fig. 28 and includes a transmitting unit 2801, a processing unit 2802, and a receiving unit 2803.

In a specific implementation manner, the communication apparatus may be specifically configured to implement the method performed by the terminal device in this embodiment, and the apparatus may be the terminal device itself, or may also be a chip or a chip set in the terminal device, or a part of a chip for performing a function of the relevant method.

In some embodiments, a processing unit 2802 to determine a first power headroom and a second power headroom; a sending unit 2801, configured to report the first power headroom and the second power headroom; wherein the first power headroom is determined according to a first PUSCH repetition associated with a first beam and the second power headroom is determined according to a second PUSCH repetition associated with a second beam. Alternatively, the first power headroom is determined from a third PUSCH associated with the first beam, the second power headroom is determined from a reference PUSCH transmission.

One possible implementation manner, the power headroom report MAC CE includes a plurality of power headrooms, and the power headrooms are arranged in the following order: the method comprises the steps of firstly arranging the indexes of the service cells corresponding to the power headroom of the plurality of power headrooms in an ascending order, and then arranging the indexes of the beams corresponding to the power headroom of the plurality of power headrooms in an ascending order.

One possible implementation manner of the present invention is that the power headroom report MAC CE includes a plurality of power headrooms, and the power headrooms are arranged in the following order: the beam indexes corresponding to the power headroom values of the plurality of power headroom values are arranged in an ascending order, and then the beam indexes corresponding to the power headroom values of the plurality of power headroom values are arranged in an ascending order.

In a possible implementation manner, the sending unit 2801 is configured to perform any one of the following:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

sending the first power headroom and the second power headroom on the first PUSCH repetition when triggering power headroom reporting is related to the first PUSCH repetition;

when triggering power headroom reporting is related to the second PUSCH repetition, sending the first power headroom and the second power headroom on the second PUSCH repetition;

and when triggering power headroom reporting to be related to the fourth PUSCH, transmitting the first power headroom and the second power headroom on the fourth PUSCH.

In a possible implementation manner, before the sending unit 2801 reports the first power headroom and the second power headroom, the receiving unit 2803 is further configured to receive first indication information, where the first indication information is used to indicate the terminal device to send a first PUSCH repetition and a second PUSCH repetition;

in a possible implementation manner, before the sending unit 2801 reports the first power headroom and the second power headroom, the receiving unit 2803 is further configured to receive second indication information, where the second indication information is used to indicate the terminal device to send a third PUSCH transmission;

in a possible implementation manner, before the sending unit 2801 reports the first power headroom and the second power headroom, the receiving unit 2803 is further configured to receive third indication information, where the third indication information is used to indicate the terminal device to send a fourth PUSCH transmission.

In a possible implementation manner, the sending unit 2801 is further configured to send the first PUSCH repetition and the second PUSCH repetition.

In other embodiments, the processing unit 2802 is configured to determine a first field and a second field, and the transmitting unit 2801 is configured to report the first field and the second field. The order of reporting the first field and the second field may be sorted in ascending order according to the serving cell index of the first field, and then sorted in ascending order according to the serving cell index of the second field. Or, the order of reporting the first field and the second field may be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell indexes corresponding to the first field and the second field.

In a possible implementation manner, the receiving unit 2803 is configured to obtain configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam; alternatively, the first beam is associated with the first power control parameter and the second beam is associated with the second power control parameter.

transmitting the first field and the second field on the third PUSCH;

In one possible implementation, the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

transmitting the first field and the second field on the fourth PUSCH when triggering power headroom reporting is related to the fourth PUSCH.

In a possible implementation manner, before reporting the first field and the second field, the sending unit 2801 is configured to receive first indication information, where the first indication information is used to indicate the terminal device to send a first PUSCH repetition and a second PUSCH repetition;

in a possible implementation manner, the sending unit 2801 is configured to, before reporting the first field and the second field, receive unit 2803, configured to receive second indication information, where the second indication information is used to indicate the terminal device to send a third PUSCH transmission;

in a possible implementation manner, before reporting the first field and the second field, the sending unit 2801 is configured to receive third indication information, where the third indication information is used to indicate the terminal device to send a fourth PUSCH transmission.

In other embodiments, the communication device may be a network device, for example, the first network device in the embodiments of the present application.

Wherein the transmitting unit 2801 is configured to transmit first configuration information, where the first configuration information is used to indicate a first PUSCH repetition and the second PUSCH repetition; a receiving unit 2803 configured to receive the first power headroom and the second power headroom; wherein the first power headroom is determined according to a first PUSCH repetition associated with a first beam and the second power headroom is determined according to a second PUSCH repetition associated with a second beam. Alternatively, the first power headroom is determined from a third PUSCH associated with the first beam, the second power headroom is determined from a reference PUSCH transmission.

In one possible implementation manner, the power headroom report MAC CE includes a plurality of power headrooms, and the power headrooms are arranged in the following order: the method comprises the steps of firstly arranging the indexes of the service cells corresponding to the power headroom of the plurality of power headrooms in an ascending order, and then arranging the indexes of the beams corresponding to the power headroom of the plurality of power headrooms in an ascending order.

In one possible implementation, the receiving unit 2803 is configured to perform any of the following:

In one possible implementation, the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

In a possible implementation manner, the receiving unit 2803 is configured to, before receiving the first power headroom and the second power headroom, send unit 2801, further send first indication information, where the first indication information is used to indicate the terminal device to send a first PUSCH repetition and a second PUSCH repetition;

in a possible implementation manner, before the receiving unit 2803 is configured to receive the first power headroom and the second power headroom, the transmitting unit 2801 is configured to transmit second indication information, where the second indication information is used to indicate the terminal device to transmit a third PUSCH transmission;

in a possible implementation manner, the receiving unit 2803 is configured to send, before receiving the first power headroom and the second power headroom, the sending unit 2801 further sends third indication information, where the third indication information is used to indicate the terminal device to send a fourth PUSCH transmission.

In a possible implementation manner, the receiving unit 2803 may further receive the first PUSCH repetition and the second PUSCH repetition.

Wherein the transmitting unit 2801 is configured to transmit first configuration information, where the first configuration information is used to indicate a first PUSCH repetition and the second PUSCH repetition.

A receiving unit 2803 configured to receive a first field and a second field; the order of reporting the first field and the second field may be sorted in ascending order according to the serving cell index of the first field, and then sorted in ascending order according to the serving cell index of the second field. Or, the order of reporting the first field and the second field may be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell indexes corresponding to the first field and the second field.

Another possible implementation manner, the first field indicates a power headroom of the third PUSCH, and the second field indicates a power headroom of the reference PUSCH. The third PUSCH is associated with the first beam.

In one possible implementation, the receiving unit 2803 is configured to perform any one of the following:

receiving the first field and the second field on the first PUSCH repetition;

receiving the first field and the second field on the second PUSCH repetition;

receiving the first field and the second field on the third PUSCH;

In one possible implementation, the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

in a possible implementation manner, before the receiving unit 2803 receives the first field and the second field, the transmitting unit 2801 may further transmit second indication information, where the second indication information is used to indicate the terminal device to transmit a third PUSCH transmission;

in a possible implementation manner, before the receiving unit 2803 receives the first field and the second field, the transmitting unit 2801 may transmit third indication information, where the third indication information is used to indicate the terminal device to transmit a fourth PUSCH transmission.

The division of the modules in the embodiments of the present application is schematic, and only one logical function division is provided, and in actual implementation, there may be another division manner, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, may also exist alone physically, or may also be integrated in one module by two or more modules. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It is understood that the functions or implementations of the respective modules in the embodiments of the present application may further refer to the related description of the method embodiments.

In a possible manner, the communication apparatus may be as shown in fig. 29, and the communication apparatus may be a communication device or a chip in the communication device, where the communication device may be a terminal device or a network device (for example, a first network device or a second network device in this embodiment of the present application). The apparatus may include a processor 2901, a communication interface 2902, and a memory 2903. Among other things, the processing unit 1202 may be the processor 2901. The transmitting unit 2801 and/or the receiving unit 2803 may be a communication interface 2902.

The processor 2901 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The communication interface 2902 may be a transceiver, an interface circuit such as a transceiver circuit, a transceiver chip, or the like. The device also includes: a memory 2903 for storing programs executed by the processor 2901. The memory 2903 can be nonvolatile memory such as a hard disk (HDD) or solid-state drive (SSD), and can also be volatile memory (RAM), for example random-access memory (RAM). The memory 2903 is any other medium that can be used for carrying or storing desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

The processor 2901 is configured to execute the program codes stored in the memory 2903, and is specifically configured to execute the actions of the processing unit 1202, which are not described herein again. The communication interface 2902 is specifically configured to perform the actions of the sending unit 2801 and/or the receiving unit 2803, and will not be described herein again.

The present embodiment does not limit the specific connection medium among the communication interface 2902, the processor 2901, and the memory 2903. In the embodiment of the present invention, the memory 2903, the processor 2901, and the communication interface 2902 are connected by the bus 2904 in fig. 29, the bus is shown by a thick line in fig. 29, and the connection manner between the other components is merely illustrative and not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 29, but this does not mean only one bus or one type of bus.

The embodiment of the present application further provides a communication system, which may include the first network device, the second network device, and the terminal device in the embodiment of the present application.

The embodiment of the present application further provides a computer-readable storage medium, which is used for storing computer software instructions required to be executed for executing the processor, and which contains a program required to be executed for executing the processor.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A communication method is applied to a terminal device and comprises the following steps:

determining a first power headroom and a second power headroom;

reporting the first power headroom and the second power headroom;

wherein the first power headroom is determined according to a first PUSCH repetition, the second power headroom is determined according to a second PUSCH repetition, the first PUSCH repetition is associated with a first beam, and the second PUSCH repetition is associated with a second beam;

alternatively, the first power headroom is determined from a third PUSCH associated with the first beam, the second power headroom is determined from a reference PUSCH transmission.

2. The method of claim 1,

acquiring configuration information of a first SRS resource set and configuration information of a second SRS resource set;

the first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam;

alternatively, the first beam is associated with the first power control parameter and the second beam is associated with the second power control parameter.

3. The method of claim 1, wherein the first power headroom and the second power headroom are carried on a power headroom reporting medium access control layer control element (MAC CE).

4. The method of claim 3, wherein the power headroom report MAC CE comprises a plurality of power headrooms, and wherein the power headrooms are arranged in an order of: and the beam indexes are arranged in an ascending order according to the beam indexes corresponding to each of the plurality of power margins.

5. The method of claim 3, wherein the power headroom report MAC CE comprises a plurality of power headrooms, and wherein the power headrooms are arranged in an order of: the beam indexes corresponding to the power headroom values of the plurality of power headroom values are arranged in an ascending order, and then the beam indexes corresponding to the power headroom values of the plurality of power headroom values are arranged in an ascending order.

6. The method of any one of claims 1-5, wherein reporting the first power headroom and the second power headroom comprises any one of:

7. The method of any of claims 1-6, wherein the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

8. The method of any one of claims 1-7, wherein reporting the first power headroom and the second power headroom comprises any one of:

when triggering power headroom reporting is related to the third PUSCH, sending the first power headroom and a second power headroom on the third PUSCH;

9. The method of any of claims 1-8, wherein the first power control parameter or the second power control parameter comprises at least one of: open loop power control parameter basic value P0, path loss compensation factor alpha, path loss reference signal ID, transmission power control TPC command and closed loop index.

10. The method of any of claims 1-7, wherein prior to reporting the first power headroom and the second power headroom, further comprising:

receiving first indication information, wherein the first indication information is used for indicating the terminal equipment to send a first PUSCH repetition and a second PUSCH repetition;

or receiving second indication information, wherein the second indication information is used for indicating the terminal equipment to send a third PUSCH transmission;

or receiving third indication information, where the third indication information is used to indicate the terminal device to send a fourth PUSCH transmission.

11. The method of any one of claims 1-10, further comprising: transmitting the first PUSCH repetition and the second PUSCH repetition.

12. A communication method applied to a network device includes:

transmitting first configuration information indicating a first PUSCH repetition and the second PUSCH repetition;

receiving a first power headroom and a second power headroom;

alternatively, the first power headroom is determined from a third PUSCH, the second power headroom is determined from a reference PUSCH transmission, the third PUSCH being associated with the first beam.

13. The method of claim 12, wherein the first configuration information comprises: configuration information of a first SRS resource set and configuration information of a second SRS resource set;

14. The method of claim 12 or 13, wherein the first and second power headroom are carried on a power headroom reporting medium intervention control layer control element, MAC CE.

15. The method of claim 14, wherein the power headroom report MAC CE comprises a plurality of power headrooms, and wherein the power headrooms are arranged in an order of: and the beam indexes are arranged in an ascending order according to the beam indexes corresponding to each of the plurality of power margins.

16. The method of claim 14, wherein the power headroom report MAC CE comprises a plurality of power headrooms, and wherein the power headrooms are arranged in an order of: and the beam indexes corresponding to the power residuals are arranged in an ascending order according to the power residuals of the plurality of power residuals, and then the beam indexes corresponding to the power residuals of the plurality of power residuals are arranged in an ascending order according to the serving cell indexes corresponding to the power residuals of the plurality of power residuals.

17. The method of any one of claims 12-16, wherein the receiving the first power headroom and the second power headroom comprises any one of:

18. The method of any one of claims 12-17, wherein the fourth PUSCH satisfies any one of:

the fourth PUSCH overlaps the first PUSCH repetition in the time domain;

19. The method of any of claims 13-18, wherein the first power control parameter or the second power control parameter comprises at least one of: open loop power control parameter basic value P0, path loss compensation factor alpha, path loss reference signal ID, transmission power control TPC command and closed loop index.

20. The method of any one of claims 12-19, wherein prior to receiving the first power headroom and the second power headroom, further comprising:

sending first indication information, wherein the first indication information is used for indicating the terminal equipment to send a first PUSCH repetition and a second PUSCH repetition;

or sending second indication information, where the second indication information is used to indicate the terminal device to send a third PUSCH transmission;

or sending third indication information, where the third indication information is used to indicate the terminal device to send a fourth PUSCH transmission.

21. The method of any one of claims 12-20, further comprising:

receiving the first PUSCH repetition and the second PUSCH repetition.

22. A communications apparatus, wherein the communications device comprises a transceiver, a processor, and a memory; the memory has stored therein program instructions; the program instructions, when executed, cause the communication device to perform the method of any of claims 1 to 11.

23. A communication device, comprising a transceiver, a processor, and a memory; the memory has stored therein program instructions; the program instructions, when executed, cause the communication device to perform the method of any of claims 12 to 21.

24. A communication system comprising a communication apparatus according to claim 22 and a communication apparatus according to claim 23.

25. A chip coupled to a memory in an electronic device such that the chip, when executed, invokes program instructions stored in the memory to implement the method of any of claims 1 to 11 or the method of any of claims 12 to 21.

26. A computer-readable storage medium, comprising program instructions which, when run on a device, cause the device to perform the method of any one of claims 1 to 21.