CN115604804A

CN115604804A - Reporting method of PHR, base station, terminal, electronic device and storage medium

Info

Publication number: CN115604804A
Application number: CN202110720013.6A
Authority: CN
Inventors: 黄建霖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2023-01-13
Also published as: WO2023274001A1

Abstract

The invention relates to the technical field of communication, and discloses a reporting method of a PHR, a base station, a terminal, an electronic device and a computer storage medium, wherein the method comprises the following steps: when the base station detects that the current PHR meets the reporting condition of a preset Power Headroom Report (PHR), downlink Control Information (DCI) for indicating the terminal to report the PHR is issued to the terminal; after receiving and analyzing DCI information issued by a base station, a terminal reports a Buffer Status Report (BSR) to the base station; after receiving the BSR, the base station allocates uplink channel resources for the terminal and issues an uplink scheduling message; after receiving the uplink scheduling message, the terminal reports DCI information with the PHR value to the base station, thereby improving the timeliness of reporting the PHR and improving the real-time performance of the base station uplink channel evaluation.

Description

Reporting method of PHR, base station, terminal, electronic device and storage medium

Technical Field

The invention relates to the technical field of communication, in particular to a power headroom reporting technology.

Background

In the communication field, when estimating the Uplink channel state, a Power Headroom Report (PHR) is usually used, that is, a difference between a theoretical transmission Power and a maximum transmission Power of a terminal in a transmission process of an Uplink PUSCH (Physical Uplink Shared channel) is estimated by the terminal, PHR information is included in an Uplink MAC CE (Media Access Control; control Element), and the MAC CE is transmitted through a PUSCH channel.

The PHR is triggered in the following cases:

and (3) periodically triggering and reporting: and triggering PHR report when the periodic PHR timer is overtime.

And (3) triggering and reporting the path loss change: the change of the path loss exceeds the threshold of the change of the path loss, and the prohibit timer is overtime (the prohibit timer is started after the report of the PHR, and the next report of the PHR is allowed after the time-out).

However, the present inventors found that: when the PHR is triggered, the uplink scheduling exists, and the PHR can report to the base station along with the uplink MAC CE. Otherwise, the PHR may not be reported, which may cause the base station to evaluate the uplink channel in time, and may cause a part of scenes to fail to acquire an effective PHR for a long time, and the related functions of the base station depending on the PHR may not function.

Disclosure of Invention

The present invention aims to solve the above problems, and provides a method for reporting a PHR, so as to solve the problem that reporting of the PHR is not timely when the uplink traffic of the terminal is small, so as to improve the real-time performance of uplink channel estimation of the base station, and provide a powerful support for functions related to the radio performance of the base station.

In order to solve the above technical problem, an embodiment of the present invention provides a method for reporting a PHR, where the method is applied to a base station, and the method includes: if the current reporting condition of the preset Power Headroom Report (PHR) is met, downlink Control Information (DCI) for indicating the terminal to report the PHR is issued to the terminal; the DCI is an uplink DCI indicating uplink channel resources; and receiving the PHR reported by the terminal through the uplink channel resource.

In order to solve the above problem, an embodiment of the present invention further provides a method for reporting a PHR, where the method is applied to a terminal, and the method includes: receiving downlink control information DCI issued by a base station; analyzing the DCI; and if the DCI is determined to be the uplink DCI for indicating the terminal to report the PHR according to the analysis result, reporting the PHR through the uplink channel resource indicated by the uplink DCI.

To solve the above problem, an embodiment of the present invention further provides a base station, including: the indication module is used for sending downlink control information DCI (downlink control information) for indicating the terminal to report the PHR to the terminal after detecting that the current reporting condition of the preset power headroom report PHR is met; the DCI is uplink DCI indicating uplink channel resources; and the receiving module is used for receiving the PHR reported by the terminal through the uplink channel resource.

In order to solve the above problem, an embodiment of the present invention further provides a terminal, including: the information receiving module is used for receiving downlink control information DCI issued by the base station; the analysis module is used for analyzing the downlink DCI information; and the reporting module is used for reporting the PHR through the uplink channel resource indicated by the uplink DCI after the DCI is determined to be the uplink DCI for indicating the terminal to report the PHR according to the analysis result.

To solve the above problem, an embodiment of the present invention further provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can perform the reporting method applied to the base station PHR or perform the reporting method applied to the PHR of the terminal.

In order to solve the above problem, an embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the method for reporting a PHR applied to a base station or a terminal is implemented.

Compared with the scheme that reporting is performed when PHR triggering is required in the related art, the method for reporting PHR provided in the embodiment of the present application can actively issue downlink control information DCI for instructing the terminal to report the PHR to the terminal and receive the PHR reported by the terminal through the uplink channel resource when a preset reporting condition of a power headroom report PHR is satisfied, thereby implementing aperiodic PHR reporting. Therefore, the reporting timeliness of the PHR is improved, the PHR can be obtained in time when the function related to the wireless performance needs to be realized, the uplink channel assessment instantaneity of the base station is improved, and the support is provided for the function related to the wireless performance of the base station.

Drawings

Fig. 1 is a flowchart of a reporting method of a PHR according to an embodiment of the present invention;

fig. 2 is a flowchart of a reporting method of a PHR according to another embodiment of the present invention;

fig. 3 is an interaction flowchart of a reporting method of a PHR according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

An embodiment of the present invention relates to a reporting method for a PHR, which is applied to a base station. In this embodiment, if it is detected that a preset reporting condition of a Power Headroom Report (PHR) is currently met, downlink Control Information (DCI) for instructing the terminal to report the PHR is issued to the terminal; allocating uplink channel resources to the terminal, and issuing uplink channel scheduling information for indicating the uplink channel resources to the terminal; and receiving the PHR reported by the terminal through the uplink channel resource to realize the non-periodic reporting indication of the PHR and improve the timeliness of the PHR reporting.

The following describes implementation details of the reporting method of the PHR in this embodiment in detail, and the following is only for facilitating implementation details of the present solution and is not necessary to implement the present solution. The specific flowchart is shown in fig. 1, and may include the following steps:

step 101: the base station detects whether the current reporting condition of the preset PHR is met. If the reporting condition of the PHR is satisfied, the process proceeds to step 102, and if the reporting condition of the PHR is not satisfied, the process continues to be executed. The preset PHR reporting condition may be that the PHR value is set to be invalid and is to be used for channel state estimation.

Specifically, when the base station recognizes that the difference between the time of the PHR information last reported by the terminal and the current time exceeds the valid time limit, the PHR is determined to be an invalid value. For example, the valid time of the PHR is set to three minutes, and if the time difference between the current time and the last time reported exceeds three minutes, the stored PHR is determined to be an invalid value. Meanwhile, if the base station recognizes that the currently valid PHR value is needed for channel state estimation to realize the functions related to the base station, it is determined that the current reporting condition of the preset PHR is satisfied, and the process proceeds to step 102.

In step 102, the base station issues downlink control information DCI for indicating the terminal to report the PHR to the terminal, where the DCI is uplink DCI indicating uplink channel resources.

In one example, a base station issues downlink control information DCI including an extension field to a terminal, where the extension field is used to indicate the terminal to report a PHR, and the terminal obtains an indication of reporting the PHR according to the extension field in the DCI. Specifically, a new field is added to the existing uplink DCI: a PHR request, configured to instruct the terminal to report the PHR. For the terminal, after receiving the uplink DCI, the terminal may obtain the reporting indication of the PHR according to the PHR request field in the received DCI.

In one example, the uplink channel resource indicated by the uplink DCI is larger than the channel resource required for transmitting the MAC CE information, so as to ensure that the terminal can subsequently have sufficient transmission resource to transmit the MAC CE information.

In step 103, the base station receives the PHR reported by the terminal through the uplink channel resource.

Specifically, the DCI which is issued by the base station to the terminal and used for instructing the terminal to report the PHR is an uplink DCI, that is, an uplink channel resource for the terminal to transmit data is indicated in the uplink DCI, so that the terminal can report the PHR to the base station according to the indicated uplink channel resource after receiving the uplink DCI.

In one example, the terminal transmits the MAC CE information through the uplink channel resource indicated by the uplink DCI; wherein, the MAC CE information carries the PHR. And the base station analyzes the received MACCE containing the PHR information to obtain the PHR value carried in the MACCE.

In the current related technology, when the PHR is triggered and there is uplink scheduling, the PHR value of the terminal is carried in uplink service data and sent to the base station, and in a scenario where the uplink traffic of the terminal is small, there is a problem that the PHR is not reported in time. In this embodiment, the base station performs a self-check on the validity of the PHR value uploaded by the current terminal, that is, identifies whether the current PHR value is valid, and if the terminal PHR value is invalid and the performance-related function of the current base station requires that the PHR value estimates a channel, the base station instructs the terminal to upload the PHR value, thereby avoiding a scenario in which the base station does not have an effective PHR value available for a long time, improving the timeliness of PHR reporting, improving the uplink channel evaluation real-time performance of the base station, and providing a support for the function related to the wireless performance of the base station.

Another embodiment of the present invention relates to a reporting method of a PHR, which is applied to a terminal, and the specific flow is shown in fig. 2.

In step 201, the terminal receives downlink control information DCI transmitted by the base station.

In step 202, the terminal parses the DCI.

In step 203, it is determined whether the DCI is an uplink DCI instructing the terminal to report the PHR according to the analysis result, if so, step 204 is executed, and if not, the process is ended.

Step 204: and reporting the PHR through the uplink channel resource indicated by the uplink DCI.

In an example, if DCI received by a terminal is uplink DCI and includes an extension field for indicating the terminal to report a PHR, it is determined that the DCI is the uplink DCI for indicating the terminal to report the PHR. That is, when the terminal resolves that the downlink control information DCI is the uplink DCI including the PHR request field, it is determined that the uplink DCI instructs the terminal to report the PHR, and the PHR is reported to the base station according to the uplink channel resource indicated by the uplink DCI. The uplink channel resource indicated by the uplink DCI is greater than the channel resource required for transmitting the MAC CE information, so as to ensure that the terminal has sufficient transmission resources to transmit the MAC CE information.

In one example, after receiving the uplink DCI, the terminal calculates a PHR value, carries the PHR value in the MAC CE, and reports the MAC CE with the PHR value to the base station.

The interaction flow between the terminal and the base station in this embodiment is shown in fig. 3:

step 301: the terminal accesses the base station.

Step 302: and the base station identifies that the time point of the PHR reported last time by the terminal is before the effective time, and the effectiveness of the PHR value is set to be invalid, so that the effective PHR value can be obtained through the subsequent steps in time after the PHR value is invalid. If the PHR value of the terminal is still in the valid state, the base station may directly use the current PHR value for channel state estimation.

Step 303: the base station identifies whether a valid PHR value is currently needed for channel state estimation.

If the performance related function of the base station currently requires the PHR value for channel estimation and the PHR value of the current terminal is invalid, proceed to the next step 304. If the performance related function of the base station does not need the PHR value for channel estimation at present, the procedure of this embodiment is directly ended.

In one example, the

steps

302 and 303 are in a parallel relationship, so the operation order of the two steps can be exchanged without any influence on the result of the subsequent operation.

Step 304: and the base station sends uplink DCI carrying the PHRrequest field to the terminal once.

Wherein, PHRrequest is an extension field in the uplink DCI. The PHRrequest field is used for indicating the terminal to report the PHR.

Step 305: the terminal analyzes the received uplink DCI, recognizes that the base station needs the terminal to report the PHR value through the PHRrequest field in the uplink DCI, calculates the PHR value, carries the PHR value in the MAC CE, and then enters step 306.

Step 306: and the terminal reports the MAC CE with the PHR value to the base station according to the uplink scheduling information indicated in the uplink DCI.

Step 307: and the base station receives and analyzes the PHR value in the DCI, and if the PHR value is analyzed to be an effective value, the PHR value of the terminal is updated. Wherein, the larger the PHR value is, i.e. the more the current power headroom is, the more the channel lifting space is.

The reporting method of the PHR provided in this embodiment may, when a reporting condition of a preset power headroom report PHR is satisfied, issue downlink DCI information for instructing reporting of the PHR to the terminal, and receive the PHR reported by the terminal through an uplink channel resource allocated to the terminal, thereby implementing an aperiodic reporting instruction of the PHR. Therefore, the reporting timeliness of the PHR is improved, the PHR can be obtained in time when the function related to the wireless performance needs to be realized, the uplink channel assessment instantaneity of the base station is improved, and the support is provided for the function related to the wireless performance of the base station.

The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.

To solve the above problem, an embodiment of the present invention further provides a base station, as shown in fig. 4, including: an indication module 401 and a receiving module 402.

Specifically, the indicating module 401 is configured to, after detecting that a reporting condition of a preset power headroom report PHR is currently met, issue, to a terminal, downlink control information DCI for indicating the terminal to report the PHR; the DCI is an uplink DCI indicating uplink channel resources.

A receiving module 402, configured to receive the PHR reported by the terminal through the uplink channel resource.

In an example, the indication module 401 issues DCI including an extension field to the terminal, where the extension field is used to indicate the terminal to report the PHR.

In one example, the uplink channel resource indicated by the uplink DCI is larger than the channel resource required for transmitting the MAC CE information. A receiving module 402 receives MAC CE information transmitted by the terminal through the uplink channel resource, where the MAC CE information carries a PHR. And obtaining the PHR reported by the terminal by analyzing the MAC CE information.

In one example, the reporting condition of the PHR is that the stored PHR has failed and is to be subjected to channel estimation.

Compared with the related art, the base station provided by the embodiment avoids the problem that the PHR is not reported timely when the uplink traffic is less. When the wireless performance related function needs to be realized, the PHR can be acquired in time, the uplink channel assessment real-time performance of the base station is improved, and the support is provided for the wireless performance related function of the base station.

It should be understood that the present embodiment is a device embodiment corresponding to the method embodiment applied to the base station, and the present embodiment can be implemented in cooperation with the method embodiment applied to the base station. The related technical details mentioned in the above embodiment of the method applied to the base station are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related technical details mentioned in the present embodiment can also be applied to the above-mentioned embodiment of the method applied to the base station.

To solve the above problem, an embodiment of the present invention further provides a terminal, as shown in fig. 5, including: the system comprises an information receiving module 501, an analyzing module 502 and a reporting module 503.

Specifically, the information receiving module 501 is configured to receive downlink control information DCI sent by a base station; an analysis module 502, configured to analyze the DCI; a reporting module 503, configured to report the PHR through the uplink channel resource indicated by the uplink DCI after determining, according to the analysis result, that the DCI is an uplink DCI instructing the terminal to report the PHR.

In an example, when the analysis result is that the DCI is the uplink DCI and the extended field for indicating the terminal to report the PHR is included, the reporting module 503 determines that the DCI is the uplink DCI for indicating the terminal to report the PHR.

It should be understood that the present embodiment is an apparatus embodiment corresponding to the above method embodiment applied to the terminal, and the present embodiment can be implemented in cooperation with the above method embodiment applied to the terminal. The related technical details mentioned in the above embodiment of the method applied to the terminal are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related art details mentioned in the present embodiment can also be applied to the above-mentioned embodiment of the method applied to the terminal.

It should be noted that, each module related in the two embodiments of the present invention is a logic module, and in practical applications, one logic unit may be one physical unit, may be a part of one physical unit, and may also be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.

An embodiment of the present invention further provides an electronic device, as shown in fig. 6, including: at least one processor 601; and a memory 602 communicatively coupled to the at least one processor; the memory 602 stores instructions executable by the at least one processor 601, and the instructions are executed by the at least one processor 601, so that the at least one processor 601 can perform the reporting method for the PHR applied to the base station or the reporting method for the PHR applied to the terminal.

Where the memory and processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting together one or more of the various circuits of the processor and the memory. The bus may also connect various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.

The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.

The product can execute the method provided by the embodiment of the application, has corresponding functional modules and beneficial effects of the execution method, and can refer to the method provided by the embodiment of the application without detailed technical details in the embodiment.

In order to solve the foregoing problem, an embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the method for reporting a PHR in this embodiment is implemented.

Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program instructing related hardware to complete, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (whether ROM is currently satisfied), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on 15.

The above-described embodiments are provided to enable persons skilled in the art to make and use the invention, and that persons skilled in the art may make modifications or changes to the above-described embodiments without departing from the inventive concept thereof, and therefore the scope of protection of the present invention is not limited by the above-described embodiments but should be accorded the widest scope of the inventive features set forth in the claims.

Claims

1. A reporting method of PHR is applied to a base station, and comprises the following steps:

if the current reporting condition of the preset Power Headroom Report (PHR) is met, downlink Control Information (DCI) for indicating the terminal to report the PHR is issued to the terminal; the DCI is uplink DCI indicating uplink channel resources;

and receiving the PHR reported by the terminal through the uplink channel resource.

2. The method of claim 1, wherein the sending downlink control information DCI to the terminal for instructing the terminal to report the PHR comprises:

sending DCI including an extension field to the terminal; the extension field is used for indicating the terminal to report the PHR.

3. The reporting method of PHR according to claim 1 or 2, characterized in that the uplink channel resource indicated by the uplink DCI is larger than the channel resource required for transmitting MAC CE information;

the receiving the PHR reported by the terminal through the uplink channel resource includes:

receiving MAC CE information transmitted by the terminal through the uplink channel resource; wherein, the MAC CE information carries PHR;

and analyzing the MAC CE information to obtain the PHR reported by the terminal.

4. The method of claim 1 or 2, wherein the reporting condition of the PHR comprises:

the stored PHR has failed and is ready for channel estimation.

5. A reporting method of PHR is characterized in that the method is applied to a terminal and comprises the following steps:

receiving downlink control information DCI issued by a base station;

analyzing the DCI;

and if the DCI is determined to be the uplink DCI for indicating the terminal to report the PHR according to the analysis result, reporting the PHR through the uplink channel resource indicated by the uplink DCI.

6. The method of claim 5, wherein the determining that the DCI is an uplink DCI for instructing the terminal to report the PHR according to the parsing result includes:

and if the DCI is uplink DCI and comprises an extension field for indicating the terminal to report the PHR, determining the DCI as the uplink DCI for indicating the terminal to report the PHR.

7. A base station, comprising:

the indication module is used for sending downlink control information DCI (downlink control information) for indicating the terminal to report the PHR to the terminal after detecting that the current reporting condition of the preset power headroom report PHR is met; the DCI is an uplink DCI indicating uplink channel resources;

and the receiving module is used for receiving the PHR reported by the terminal through the uplink channel resource.

8. A terminal, comprising:

the information receiving module is used for receiving downlink control information DCI issued by the base station;

the analysis module is used for analyzing the DCI;

and the reporting module is used for reporting the PHR through the uplink channel resource indicated by the uplink DCI after the DCI is determined to be the uplink DCI for indicating the terminal to report the PHR according to the analysis result.

9. An electronic device, comprising:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the reporting method of the PHR as claimed in any one of claims 1 to 4 or to perform the reporting method of the PHR as claimed in claim 5 or 6.

10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the reporting method of the PHR according to any one of claims 1 to 4, or implements the reporting method of the PHR according to claim 5 or 6.