Reporting method and apparatus of power headroom, and communication device

By selecting the appropriate reporting target TRP and obtaining its PHR during multi-TRP cooperative transmission, the problem of inaccurate PHR in the prior art is solved, and precise power control and reasonable allocation of network resources are achieved.

CN116097782BActive Publication Date: 2026-04-10BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-03-31
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In Transmitter-Receiver Point (TRP) cooperative transmission, existing technologies struggle to achieve accurate Power Headroom Reporting (PHR), leading to improper allocation of network resources.

Method used

By obtaining the configuration information of the Physical Uplink Shared Channel (PUSCH) for multiple TRPs, a suitable reporting target TRP is selected, and its PHR is obtained and reported. Various methods, such as SRS resource set ID, SRI sorting, and PHR value processing, are used to ensure the accuracy of the PHR.

Benefits of technology

It improves the accuracy of power margin reports, enabling precise power control and rational allocation of network resources.

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Abstract

The disclosure provides a power headroom reporting method, device and communication equipment, and belongs to the technical field of wireless communication. In the power headroom reporting method, the power control processes of the PUSCHs in multiple different TRP directions are independent of each other, so that the network equipment can achieve accurate power control according to the reported PHR.
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Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and in particular to a power headroom reporting method and device and communication equipment. BACKGROUND

[0002] The application of multiple transmission and reception points (TRP) / panels is mainly to improve the coverage of the cell edge and provide more balanced service quality in the service area. In different ways, data is cooperatively transmitted between multiple TRPs / panels. From the perspective of network form, network deployment in the form of a large number of distributed access points plus baseband centralized processing will be more conducive to providing balanced user experience rate and significantly reducing the time delay and signaling overhead caused by handover. By utilizing the cooperation between multiple TRPs or panels and the transmission / reception of channels from multiple beams in multiple directions, various shadowing / blocking effects can be better overcome to ensure the robustness of link connection and improve the transmission quality and meet the reliability requirements of ultra-reliable and low latency communications (URLLC) services.

[0003] Among them, the power headroom reporting (PHR) reflects the available power of the terminal, i.e., the power headroom, so that the network device can perform power control according to the obtained PHR. Therefore, in the control of uplink transmission, how the user equipment reports accurate PHR is a technical problem to be solved. SUMMARY

[0004] The present disclosure proposes a power headroom reporting method, device and communication equipment to solve the problem of how to accurately report PHR in different transmission modes, so as to accurately control the power of the terminal and effectively allocate and utilize network resources.

[0005] An embodiment of the present disclosure provides a power headroom reporting method applied to a user equipment (UE), the method comprising:

[0006] obtaining a physical uplink shared channel (PUSCH) transmitted by multiple transmission and reception points (TRPs);

[0007] selecting at least one reporting target TRP from the PUSCH transmitted by the multiple TRPs;

[0008] obtaining at least one power headroom report (PHR) of the PUSCH of the at least one reporting target TRP;

[0009] select at least one target PHR from the at least one PHR for reporting.

[0010] Another aspect of the present disclosure provides a device for reporting power headroom, which is applied to a user equipment (UE), and includes:

[0011] A first obtaining module is configured to obtain a physical uplink shared channel (PUSCH) transmitted by multiple transmission and reception points (TRPs);

[0012] A selecting module is configured to select at least one target TRP for reporting from the PUSCH transmitted by the multiple TRPs;

[0013] A second obtaining module is configured to obtain at least one power headroom report (PHR) of the PUSCH of the at least one target TRP;

[0014] A reporting module is configured to select at least one target PHR from the at least one PHR for reporting.

[0015] Another aspect of the present disclosure provides a communication device, which includes a transceiver, a memory, and a processor connected with the transceiver and the memory respectively, and configured to control the transceiver to receive and send wireless signals and implement the method of the first aspect by executing computer executable instructions stored in the memory.

[0016] Another aspect of the present disclosure provides a computer storage medium, which stores computer executable instructions, and the computer executable instructions are executed by a processor to implement the method of the first aspect.

[0017] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0018] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0019] The additional aspects and advantages of the present disclosure will be described in the following description, some of which will become apparent, or will be learned by the following description, or will be understood by those skilled in the art through practice of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above mentioned and / or additional aspects and advantages of the present disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A flowchart of a method for reporting a power headroom according to an embodiment of the present disclosure;

[0022] Figure 2 A flowchart of a method for reporting a power headroom according to another embodiment of the present disclosure;

[0023] Figure 3 A flowchart of a method for reporting a power headroom according to another embodiment of the present disclosure;

[0024] Figure 4 A flowchart of a method for reporting a power headroom according to another embodiment of the present disclosure;

[0025] Figure 5 A flowchart of a method for reporting a power headroom according to another embodiment of the present disclosure;

[0026] Figure 6 A structural diagram of a device for reporting a power headroom according to an embodiment of the present disclosure;

[0027] Figure 7 A block diagram of a UE 800 according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. It is to be understood that the description of the exemplary embodiments is not intended to be exhaustive or to be limited to a single form of implementation. In the description of the exemplary embodiments, processes or steps are presented in an exemplary order for purposes of illustration and description only. Those of ordinary skill in the art will recognize that the processes or steps can be implemented in a different order, or that some of the processes or steps can be combined or omitted, without changing the spirit of the exemplary embodiments.

[0029] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0030] It should be understood that, although the terms first, second, third, etc. can be employed in describing various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to differentiate one piece of information from another piece of information of the same type. For example, without departing from the scope of the embodiments of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the words "if" and "when" as used herein can be interpreted as "upon determining" or "in response to determining".

[0031] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, in which the same or similar reference numerals represent the same or similar elements throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0032] The power headroom reporting method, device and communication device provided by the present disclosure are described in detail below with reference to the accompanying drawings.

[0033] Figure 1 A flowchart of a power headroom reporting method provided by an embodiment of the present disclosure is shown in FIG. 1, which is applied to a user equipment (UE).

[0034] As shown in FIG. 1, the method comprises the following steps: Figure 1

[0035] Step 101: Obtain a physical uplink shared channel (PUSCH) transmitted to multiple transmission and reception points (TRPs).

[0036] In the present embodiment, the TRP corresponds to a serving cell or a neighboring cell of the user equipment.

[0037] In the present embodiment, the power of the PUSCH transmitted by each TRP is controlled individually, and each measured power needs to be reported to the network device, so that the PUSCH transmitted to multiple TRPs needs to be obtained.

[0038] Step 102: Select at least one reporting target TRP from the PUSCH transmitted to multiple TRPs.

[0039] In the present embodiment, the method of selecting at least one reporting target TRP from the PUSCH transmitted to multiple TRPs will be described in detail in subsequent embodiments.

[0040] Step 103: Obtain at least one power headroom report (PHR) of the PUSCH of the at least one reporting target TRP.

[0041] ​Wherein, for determining the power headroom report PHR, as a possible implementation, for each reporting target TRP, the actual transmission power corresponding to the reporting target TRP is obtained, and the maximum transmission power Pcmax is obtained, and the maximum transmission power Pcmax is subtracted by the actual transmission power to obtain the corresponding power headroom report PHR.

[0042] Step 104, selecting at least one target PHR from the at least one PHR for reporting.

[0043] In the power headroom reporting method of the embodiments of the present disclosure, the power control processes of the physical uplink shared channels (PUSCH) sent in the directions of multiple different TRPs are independent of each other, that is, the powers of the PUSCH sent in the directions of different TRPs can be different, therefore, at least one reporting target TRP needs to be selected from the obtained PUSCH sent in the directions of multiple TRPs, and then the corresponding power headroom report PHR is determined based on the power of the PUSCH sent by the target TRP, which realizes the measurement and determination of the enhanced PHR in the scenario of the PUSCH sent in the directions of multiple different TRPs, and the power headroom report is reported to the network device, so that the network device can realize accurate power control and reasonable allocation of network resources according to the reported PHR.

[0044] Based on the above embodiments, at least one reporting target TRP is selected from the PUSCH sent in the directions of multiple TRPs, and the method of selecting at least one reporting target TRP from the PUSCH sent in the directions of multiple TRPs is different in different transmission scenarios, which will be described in detail in different embodiments.

[0045] Based on the above embodiments, an implementation is provided in the present embodiment, as shown in Figure 2 The above step 102 comprises the following steps:

[0046] Step 201, obtaining a plurality of TRP sounding reference signal resource set identifiers SRS resource set IDs.

[0047] Step 202, selecting one reporting target TRP from the plurality of TRPs according to the SRS resource set IDs of the plurality of TRPs.

[0048] In the present embodiment, the SRS resource set ID is used to identify the ordering information of the plurality of TRPs, and the TRP with the maximum or minimum SRS resource set ID is selected as the reporting target TRP by predefinition or signaling configuration of the network side device.

[0049] In one scenario, for multiple TRPs, the SRS resource set IDs corresponding to the multiple TRPs are sorted in a preset sorting manner, for example, in a manner from small to large or in a manner from large to small, and then a TRP with a largest or smallest SRS resource set ID is selected from the sorted SRS resource set IDs as a reporting target TRP according to a predefined selection manner.

[0050] In another scenario, for multiple TRPs, the SRS resource set IDs corresponding to the multiple TRPs are sorted in a preset sorting manner, for example, in a manner from small to large or in a manner from large to small, and then a TRP with a largest or smallest SRS resource set ID is selected from the sorted SRS resource set IDs as a reporting target TRP according to a selection manner configured by a network-side device through signaling, for example, RRC signaling.

[0051] In the power headroom reporting method of the embodiments of the present disclosure, a TRP with a largest or smallest SRS resource set ID is selected as a reporting target TRP from multiple TRPs based on the sorting of SRS resource set ID of the multiple TRPs, and then power measurement is performed according to the transmission of PUSCH of the target TRP, a corresponding PHR is obtained, and the PHR is reported to a network device, thereby achieving multi-TRP-based PHR measurement and reporting of PUSCH in different transmission modes, obtaining an enhanced PHR, and enabling the network device to perform accurate power control according to the reported enhanced PHR and to perform reasonable allocation of network resources.

[0052] Based on the above embodiments, another implementation manner is provided in the present embodiment, as shown in Figure 3 The step 102 includes the following steps:

[0053] In step 301, multiple SRS reference signal resource indications SRI corresponding to multiple TRPs are obtained.

[0054] Step 302, selecting a reporting target TRP from the plurality of TRPs according to the order of the plurality of SRS reference signal resource indications SRI.

[0055] In one scenario, for the plurality of TRPs, the plurality of SRS reference signal resource indications SRI corresponding to the plurality of TRPs are sorted according to a preset sorting manner, for example, sorted in ascending order of the index values of the SRI indication fields or in descending order of the index values of the SRI indication fields, and then the TRP corresponding to the SRI at the front of the sorting is the reporting target TRP. For example, the SPIs corresponding to TRP1 and TRP2 are SPI1 and SPI2, respectively, and TRP1 corresponding to SPI1 at the front of the sorting is selected as the reporting target TRP.

[0056] In another scenario, for the plurality of TRPs, the plurality of SRS reference signal resource indications SRI corresponding to the plurality of TRPs are sorted according to a preset sorting manner, for example, sorted in ascending order of the index values of the SRI indication fields or in descending order of the index values of the SRI indication fields, and then the TRP corresponding to the SRI at the end of the sorting is the reporting target TRP. For example, the SPIs corresponding to TRP1 and TRP2 are SPI1 and SPI2, respectively, and TRP2 corresponding to SPI2 at the end of the sorting is selected as the reporting target TRP.

[0057] Further, a power headroom report PHR is generated according to the PUSCH transmission power of TRP2, and the PHR is reported to the network device.

[0058] In the power headroom reporting method of the embodiments of the present disclosure, the plurality of SRS reference signal resource indications SRI corresponding to the plurality of TRPs are obtained, and the TRP corresponding to the SRI at the front or the end of the sorting is selected as the reporting target TRP from the plurality of TRPs according to the order of the plurality of SRS reference signal resource indications SRI, which realizes the PHR measurement and reporting of multi-TRP based PUSCH in different transmission modes, and enhanced PHR is obtained, so that the network device can realize accurate power control and reasonable allocation of network resources according to the reported enhanced PHR.

[0059] Based on the above embodiments, another implementation manner is provided, as shown in Figure 4 The method comprises the following steps:

[0060] Step 401, obtaining a physical uplink shared channel PUSCH transmitted by a plurality of transmission and reception points TRPs.

[0061] Step 402, taking the plurality of TRPs as reporting target TRPs.

[0062] At step 403, a plurality of power headroom reports PHRs of PUSCHs of the plurality of reporting target TRPs are acquired.

[0063] In this embodiment, the plurality of acquired TRPs are all taken as reporting target TRPs, and then the plurality of power headroom reports PHRs of PUSCHs of the plurality of reporting target TRPs are acquired.

[0064] For determining the power headroom report PHR, as a possible implementation manner, for each reporting target TRP, the actual transmission power of the corresponding reporting target TRP is acquired, and the maximum transmission power Pcmax is obtained, and the maximum transmission power Pcmax is subtracted from the actual transmission power to obtain the power headroom report PHR of the PUSCH of the corresponding reporting target TRP.

[0065] At step 404, one target PHR is selected from the plurality of PHRs corresponding to the plurality of target TRPs and is reported.

[0066] In one implementation manner of this embodiment, if there is a negative value in the plurality of PHRs, it indicates that the transmission power of the PUSCH of the reporting target TRP corresponding to the PHR with the negative value cannot be further improved and has reached the limit value of the transmission power of the user equipment, and at least one PHR corresponding to the negative value is taken as the target PHR and is reported, so that the network equipment can pay attention to the transmission power of the PUSCH of the reporting target TRP in time, so as to facilitate the network equipment to perform power management and control.

[0067] In a second implementation manner of this embodiment, if the plurality of PHRs are all negative values, it indicates that the transmission powers of the PUSCHs of the plurality of reporting target TRPs cannot be further improved and have all reached the limit value of the transmission power of the user equipment, and the PHR with the largest absolute value is taken as the target PHR and is reported, so that the network equipment can pay attention to the transmission power of the PUSCH of the reporting target TRP in time, so as to facilitate the network equipment to perform power management and control.

[0068] In a third implementation manner of this embodiment, if the plurality of PHRs are all positive values, the PHR with the smallest absolute value is taken as the target PHR and is reported.

[0069] According to the above three implementation manners, while selecting one target PHR from the plurality of PHRs corresponding to the plurality of target TRPs and reporting the target PHR, as an implementation manner, the SRI ordering value or SRS Set ID of the TRP corresponding to the target PHR can also be reported to the network equipment, so that the network equipment can determine the identity of the user equipment to be processed preferentially according to the acquired SRI ordering value or SRS Set ID of the TRP corresponding to the target PHR.

[0070] In the embodiments of the present disclosure, the multi-TRP based PUSCH is reported in the PHR measurement of different transmission modes, and the enhanced PHR is obtained, so that the network device can realize accurate power control according to the reported enhanced PHR, and realize reasonable allocation of network resources.

[0071] In the above embodiments, it is explained that the uploaded PHR is the estimated value of the actual power margin. Based on the above embodiments, an implementation manner is provided in the present embodiment, which specifically explains that the actual measurement value of TPR when sending PUSCH can also be reported, as shown in the following table: Figure 5 The method comprises the following steps:

[0072] In step 501, the actual measurement values of the plurality of TRPs are obtained.

[0073] The actual measurement value of the TRP refers to the actual power margin measured when the corresponding TRP sends the PUSCH.

[0074] In step 502, the actual measurement values of the plurality of TRPs are reported.

[0075] In an implementation manner of the embodiments of the present disclosure, the actual measurement values of the plurality of TRPs, i.e., the measurement values of the actual power margins, are reported in a preset order or the order of SRS set ID.

[0076] It should be noted that the preset order can be the reporting order of the actual measurement values of the plurality of TRPs, which is preset by the person skilled in the art according to the requirements, and is not limited in the present embodiment.

[0077] In another implementation manner of the embodiments of the present disclosure, the actual measurement values of a part of the plurality of TRPs, i.e., the measured actual power margins, are reported to the network device, and the difference values of the actual measurement values of another part of the plurality of TRPs are reported.

[0078] For example, the plurality of TRPs are TRP1, TRP2 and TRP3, and the corresponding actual measurement values of the power margins are PHR1, PHR2 and PHR3, respectively. Among them, TRP1 reports the actual measurement value of the power margin PHR1 to the network device, TRP2 reports the difference value between the actual measurement value of the power margin PHR2 and PHR1 to the network device, and TRP3 reports the difference value between the actual measurement value of the power margin PHR3 and PHR2 to the network device, or reports the difference value between the actual measurement value of the power margin PHR3 and PHR2 and PHR to the network device, so as to realize differential reporting and improve the diversity of reporting, thereby meeting the reporting requirements of different scenarios.

[0079] In an implementation form of the embodiment, when at least one target PHR is selected from at least one PHR for reporting, that is, uploading the estimated value of the actual power headroom of the TPR, the actual measured value of the actual power headroom of the TRP can also be uploaded synchronously. Through the reporting of the two power headroom values, the accuracy of the power headroom reporting is improved, and then the network device can adjust the reporting mode of the power headroom according to the actual measured value and the estimated value of the power headroom obtained, to improve the reliability of the reporting. At the same time, the network device can also perform weighted averaging according to the actual measured value and the estimated value of the power headroom obtained, to determine the final power headroom, so that corresponding power control is performed according to the power headroom, and more effective allocation and utilization of network resources are achieved.

[0080] In the power headroom reporting method of the embodiment of the disclosure, the actual measured values of the plurality of TRPs are obtained, and the actual measured values of the plurality of TRPs are reported, which enriches the reporting mode and meets the reporting needs of different scenarios.

[0081] Based on the above embodiment, in the embodiment, for different multi-TRP-based PUSCH transmission modes, when the determined target PHR is reported, in one scenario, if it is a PUSCH transmission based on one downlink control information (DCI), the target PHR is determined by the method in any of the above method implementations and uploaded to the network device; in another scenario, if it is a PUSCH transmission based on multiple DCIs, the target PHR is determined by the method in the corresponding method implementation and uploaded to the network device; the measurement and reporting needs of the power headroom in different scenarios are met, so that the dynamic scheduling of different transmission modes is better supported, accurate power control is achieved, and network resources are more effectively allocated and utilized. Figure 5 Based on the above embodiment, in the embodiment, for different multi-TRP-based PUSCH transmission modes, when the determined target PHR is reported, in one scenario, if it is a PUSCH transmission based on one downlink control information (DCI), the target PHR is determined by the method in any of the above method implementations and uploaded to the network device; in another scenario, if it is a PUSCH transmission based on multiple DCIs, the target PHR is determined by the method in the corresponding method implementation and uploaded to the network device; the measurement and reporting needs of the power headroom in different scenarios are met, so that the dynamic scheduling of different transmission modes is better supported, accurate power control is achieved, and network resources are more effectively allocated and utilized.

[0082] To implement the above embodiment, the embodiment provides a power headroom reporting device applied to a user equipment (UE).

[0083] Figure 6 A structural schematic diagram of a power headroom reporting device provided by the embodiment of the disclosure is shown in FIG. 1, which includes: Figure 6

[0084] A first obtaining module 61 is configured to obtain a PUSCH transmitted by facing a plurality of transmission and reception points (TRPs).

[0085] A selecting module 62 is configured to select at least one target TRP for reporting from the plurality of PUSCH transmissions facing different TRPs.

[0086] ​The second obtaining module 63 is further configured to obtain at least one power headroom report (PHR) of a physical uplink shared channel (PUSCH) of the at least one reporting target TRP.

[0087] The reporting module 64 is configured to select at least one target PHR from the at least one PHR for reporting.

[0088] Further, in an implementation of the embodiment of the present disclosure, the selection module 62 is specifically further configured to:

[0089] obtain a sounding reference signal resource set identifier (SRS resource set ID) of the plurality of TRPs;

[0090] select one reporting target TRP from the plurality of TRPs according to the SRS resource set ID of the plurality of TRPs.

[0091] In an implementation of the embodiment of the present disclosure, the SRS resource set ID is used to identify ranking information, and the TRP with the maximum or minimum SRS resource set ID is selected as the reporting target TRP by means of predefinition or signaling configuration of the network side device.

[0092] In an implementation of the embodiment of the present disclosure, the selection module 62 is specifically further configured to:

[0093] obtain a plurality of sounding reference signal resource indicators (SRIs) corresponding to the plurality of TRPs;

[0094] select one reporting target TRP from the plurality of TRPs according to ranking of the plurality of SRIs.

[0095] In an implementation of the embodiment of the present disclosure, the TRP corresponding to the SRI at the front or the end of the ranking is the reporting target TRP.

[0096] In an implementation of the embodiment of the present disclosure, the selection module 62 is specifically further configured to: take the plurality of TRPs as a plurality of reporting target TRPs.

[0097] In an implementation of the embodiment of the present disclosure, the reporting module 64 is specifically further configured to: select one target PHR from a plurality of PHRs corresponding to the plurality of reporting target TRPs for reporting.

[0098] In an implementation of the embodiment of the present disclosure, the reporting module 64 is specifically further configured to: if there is a negative value in the plurality of PHRs, take at least one PHR corresponding to the negative value as the target PHR and report.

[0099] In an implementation form of the embodiment of the disclosure, the reporting module 64 is specifically further configured to: if the multiple PHRs are all negative values, take the PHR with the largest absolute value as the target PHR, and report the target PHR.

[0100] In an implementation form of the embodiment of the disclosure, the reporting module 64 is specifically further configured to: if the multiple PHRs are all positive values, take the PHR with the smallest absolute value as the target PHR, and report the target PHR.

[0101] In an implementation form of the embodiment of the disclosure, the reporting module 64 is further configured to:

[0102] report the SRI ordering value or the SRS set ID of the TRP corresponding to the target PHR.

[0103] In an implementation form of the embodiment of the disclosure, the apparatus further includes a calculation module configured to:

[0104] obtain an actual transmission power of the TRP;

[0105] obtain a maximum transmission power Pcmax;

[0106] calculate the PHR according to the actual transmission power and the maximum transmission power Pcmax.

[0107] In an implementation form of the embodiment of the disclosure, the second obtaining module 63 is configured to obtain actual measurement values of the multiple TRPs.

[0108] The reporting module 64 is further configured to report the actual measurement values of the multiple TRPs.

[0109] In an implementation form of the embodiment of the disclosure, the reporting module 64 is specifically further configured to:

[0110] report the actual measurement values of the multiple TRPs in a preset order or an SRS set ID order.

[0111] In an implementation form of the embodiment of the disclosure, the reporting module 64 is specifically further configured to:

[0112] report actual measurement values of a part of the multiple TRPs, and report differences of actual measurement values of another part of the multiple TRPs.

[0113] It should be noted that the foregoing explanation and description of the method embodiment also apply to the apparatus of the present embodiment, and the principle is the same, and the present embodiment will not be described again.

[0114] In the power headroom reporting device provided by the embodiment of the disclosure, the power control processes of the physical downlink shared channel (PUSCH) transmission in multiple different TRP directions are independent of each other, that is, the power of the PUSCH transmission in different TRP directions can be different. Therefore, at least one target TRP needs to be selected from the obtained PUSCH transmission in multiple TRPs, and then the corresponding power headroom report (PHR) is determined based on the power of the PUSCH transmission of the target TRP. In the scenario of the PUSCH transmission in multiple different TRP directions, the enhanced PHR measurement and determination are realized, and the power headroom report is reported to the network device. Therefore, the network device can realize accurate power control and reasonable allocation of network resources according to the reported PHR.

[0115] In order to implement the above-mentioned embodiments, the disclosure further provides a communication device.

[0116] The communication device provided by the embodiment of the disclosure comprises a processor, a transceiver, a memory and an executable program stored in the memory and capable of being executed by the processor, wherein the processor executes the executable program to perform the method of the foregoing method embodiments.

[0117] The communication device can be the user equipment as described above.

[0118] The processor can comprise various types of storage media, which is a non-transitory computer storage medium capable of continuing to store information stored thereon after the communication device is powered off.

[0119] The processor can be connected with the memory through a bus or the like, and is used to read the executable program stored in the memory, for example, at least one of Figures 1 to 5

[0120] In order to implement the above-mentioned embodiments, the disclosure further provides a computer storage medium.

[0121] The computer storage medium provided by the embodiment of the disclosure stores an executable program; the executable program is executed by the processor to implement the foregoing method, for example, at least one of Figures 1 to 5

[0122] Figure 7 is a block diagram of a UE 800 provided by an embodiment of the disclosure. For example, the UE 800 can be a mobile phone, a computer, a digital broadcast user equipment, a messaging equipment, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0123] Referring to Figure 7 ​​The UE 800 can include at least one of the following components: a processing component 802, a memory component 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0124] The processing component 802 generally controls the overall operation of the UE 800 such as the operation of the display, the telephone call, the data communication, the camera operation and the recording operation. The processing component 802 can include at least one processor 820 to execute instructions to complete the steps of the methods described above. Further, the processing component 802 can include at least one module to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0125] The memory component 804 is configured to store various types of data to support the operation of the UE 800. Examples of these data include instructions for any application or method operating on the UE 800, contact data, phonebook data, messages, pictures, videos, and so on. The memory component 804 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0126] The power supply component 806 supplies the power for the various components of the UE 800. The power supply component 806 can include a power supply management system, at least one power supply, and other components associated with generating, managing and delivering the power for the UE 800.

[0127] The multimedia component 808 includes a screen providing an output interface between the UE 800 and the user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes at least one touch sensor to sense a touch, a slide and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect a pressure by at least one of an electronic sensor disposed at the touch panel and a sensor for measuring a change in capacitance generated on the touch panel. In some embodiments, the multimedia component 808 includes a front camera and / or a back camera. The front camera and / or the back camera can receive external multimedia data when the UE 800 is in an operation mode, such as a photographing mode or a video mode. Each of the front camera and the back camera can be a fixed optical lens system or have a focus and an optical zooming capability.

[0128] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) that is configured to receive an external audio signal when the UE 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting an audio signal.

[0129] The I / O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0130] The sensor component 814 includes at least one sensor for providing various state assessments for the UE 800. For example, the sensor component 814 can detect an open / closed position of the device 800, relative positioning of components, such as a display and a keypad of the UE 800, a change of position of the UE 800 or a component of the UE 800, presence or absence of user contact with the UE 800, orientation or acceleration / deceleration / g-force and temperature of the UE 800. The sensor component 814 can include a proximity sensor configured to detect presence of a nearby object without any physical touch. The sensor component 814 can further include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0131] The communication component 816 is configured to facilitate wired or wireless communication between the UE 800 and another device. The UE 800 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an example embodiment, the communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) techniques, infrared data association (IrDA) techniques, ultra-wideband (UWB) techniques, Bluetooth (BT) techniques, and other techniques.

[0132] In an exemplary embodiment, the UE 800 can be implemented with at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component, for performing the above methods.

[0133] In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 804 including instructions, is also provided, which can be executed by the processor 820 of the UE 800 to complete the above methods. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0134] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure following the general principles thereof and including such departures from the present disclosure that come within known

[0135] It should be understood that the present disclosure is not limited to the precise structures as has been described above and shown in the drawings and that various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A method for reporting power margin, characterized in that, Applied to a user equipment (UE), the method includes: Acquire the Physical Uplink Shared Channel (PUSCH) for transmission to multiple transmit and receive points (TRPs); Select at least one reporting target TRP from the PUSCH sent to multiple TRPs; Obtain at least one power headroom report (PHR) from the at least one PUSCH reporting the target TRP; Select at least one target PHR from the at least one PHR and report it; The step of selecting at least one reporting target TRP from the PUSCH sent to multiple TRPs includes: Obtain the SRS resource set ID of the plurality of TRPs; Select a target TRP from among the multiple TRPs based on the SRS resource set ID of the multiple TRPs; or, Obtain the multiple SRS reference signal resource indicators (SRIs) corresponding to the multiple TRPs; Select a reporting target TRP from the plurality of TRPs according to the sorting of the plurality of SRS reference signal resource indications (SRIs); or, All of the aforementioned TRPs are treated as multiple reporting target TRPs.

2. The method as described in claim 1, characterized in that, in, The SRS resource set ID is used to identify sorting information. The TRP with the largest or smallest SRS resource set ID is selected as the reporting target TRP through predefined means or by signaling configuration of network-side devices.

3. The method as described in claim 1, characterized in that, in, The TRP corresponding to the SRI that is first or last in the sort is the reported target TRP.

4. The method as described in claim 1, characterized in that, The step of selecting at least one target PHR from the at least one PHR for reporting includes: Select one target PHR from among the multiple PHRs corresponding to the multiple reporting target TRPs and report it.

5. The method as described in claim 4, characterized in that, The step of selecting one target PHR from among the multiple PHRs corresponding to the multiple reporting target TRPs for reporting includes: If any of the multiple PHRs has a negative value, then at least one PHR corresponding to the negative value is taken as the target PHR and reported.

6. The method as described in claim 4, characterized in that, The step of selecting one target PHR from among the multiple PHRs corresponding to the multiple reporting target TRPs for reporting includes: If all of the PHR values ​​are negative, the PHR with the largest absolute value will be taken as the target PHR and reported.

7. The method as described in claim 4, characterized in that, The step of selecting one target PHR from among the multiple PHRs corresponding to the multiple reporting target TRPs for reporting includes: If all of the PHR values ​​are positive, the PHR with the smallest absolute value is taken as the target PHR and reported.

8. The method according to any one of claims 4-7, characterized in that, Also includes: Report the SRI sort value or SRS set ID of the TRP corresponding to the target PHR.

9. The method according to any one of claims 1-7, characterized in that, The PHR is calculated through the following steps: Obtain the actual transmit power of TRP; Obtain the maximum transmit power Pcmax; The PHR is calculated based on the actual transmit power and the maximum transmit power Pcmax.

10. The method according to any one of claims 1-7, characterized in that, Also includes: Obtain the actual measurement values ​​of the multiple TRPs; The actual measurement values ​​of the multiple TRPs are reported.

11. The method as described in claim 10, characterized in that, The step of reporting the actual measurement values ​​of the multiple TRPs includes: The actual measurement values ​​of the multiple TRPs are reported in a preset order or in the order of SRS set ID.

12. The method as described in claim 10, characterized in that, The step of reporting the actual measurement values ​​of the multiple TRPs includes: The actual measurement values ​​of a portion of the multiple TRPs are reported, and the difference between the actual measurement values ​​of another portion of the multiple TRPs is reported.

13. A power margin reporting device, characterized in that, The device includes: The first acquisition module is used to acquire the Physical Uplink Shared Channel (PUSCH) for transmission to multiple transmitting and receiving points (TRPs). The selection module is used to select at least one reporting target TRP from the PUSCH sent to multiple TRPs; The second acquisition module is used to acquire at least one power headroom report (PHR) of the at least one PUSCH reporting the target TRP; The reporting module is used to select at least one target PHR from the at least one PHR for reporting; Specifically, the selection module is used for: Obtain the SRS resource set ID of the plurality of TRPs; Select a target TRP from among the multiple TRPs based on the SRS resource set ID of the multiple TRPs; or, Obtain the multiple SRS reference signal resource indicators (SRIs) corresponding to the multiple TRPs; Select a reporting target TRP from the plurality of TRPs according to the sorting of the plurality of SRS reference signal resource indications (SRIs); or, All of the aforementioned TRPs are treated as multiple reporting target TRPs.

14. A communication device, wherein, include: transceiver; Memory; A processor, connected to both the transceiver and the memory, is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the method described in any one of claims 1 to 12.

15. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method described in any one of claims 1 to 12.

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