CN-115413034-B - Communication method and device

Abstract

The application relates to a communication method and a communication device. The method comprises the steps that a terminal device determines available uplink transmission energy in a first time period, wherein the first time period comprises a plurality of time units, and first indication information is sent to a network device and used for indicating the available uplink transmission energy. In this way, the terminal equipment sends the available uplink transmission energy to the network equipment in the first time period, so that the terminal equipment with insufficient available uplink transmission energy is prevented from being scheduled by the network equipment, on one hand, uplink resource waste caused by unnecessary terminal equipment scheduling by the network equipment can be reduced, and on the other hand, the condition that uplink signal transmission fails due to insufficient energy of the terminal equipment can be reduced, and the uplink coverage and the uplink rate of the terminal equipment can be improved.

Inventors

• Xuan Yidi
• XIE XINQIAN
• GUO ZHIHENG

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20210528

Claims (17)

1. 1. A communication method, the method being suitable for a terminal device, comprising: determining available uplink transmit energy for a first time period, the first time period comprising a plurality of time units; sending first indication information to network equipment; the first indication information is an index of average transmitting power of the uplink signal in the first period, and the method further includes: And determining an index of the average transmitting power of the uplink signal in the first time period according to the available uplink transmitting energy and a second corresponding relation, wherein the second corresponding relation is a corresponding relation between the average transmitting power of the uplink signal in the first time period and the index of the average transmitting power of the uplink signal in the first time period.
2. 2. The method of claim 1, wherein the available uplink transmission energy is energy for uplink signaling during a first time period of a time window, wherein, The time window is a period of time in which an average value of the transmission power of the terminal device does not exceed a first threshold value, the average value of the transmission power is an average value of the transmission power of each time unit within the time window, and/or, The time window is a time period in which the terminal equipment can transmit the uplink signal by using the transmission power higher than the preset maximum transmission power, and/or the energy of the terminal equipment for transmitting the uplink signal in the time window does not exceed a second threshold.
3. 3. The method according to claim 1 or 2, characterized in that the first indication information is carried in a medium access control unit MAC CE, or the first indication information is an uplink control information UCI.
4. 4. The method of claim 3, wherein the MAC CE comprises a first field and a second field, wherein: The first field is reserved bit, the second field indicates the first indication information, or The second field indicates the first indication information when the first field is a first state value, and the second field indicates the power headroom level when the first field is a second state value, or The first field indicates a power headroom level, and the second field indicates the first indication information.
5. 5. The method of claim 3 wherein the UCI is carried on a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
6. 6. A method of communication, the method being adapted for use with a network device, comprising: Transmitting indication information of physical uplink channel resources to terminal equipment; Receiving first indication information from the terminal equipment on the physical uplink channel resource; the first indication information is an index of average transmitting power of the uplink signal in a first period, and the method further includes: determining available uplink transmission energy according to an index of average transmission power of the uplink signals transmitted in the first time period and a second corresponding relation, wherein the second corresponding relation is a corresponding relation between the average transmission power of the uplink signals transmitted in the first time period and the index of the average transmission power of the uplink signals transmitted in the first time period; The first time period comprises a plurality of time units, the average transmitting power of the uplink signals transmitted in the first time period is the ratio of the available uplink transmitting energy of the terminal equipment in the first time period to the total number of the time units included in the first time period, and the physical uplink channel resources are Physical Uplink Shared Channel (PUSCH) resources and/or Physical Uplink Control Channel (PUCCH) resources.
7. 7. The method of claim 6, wherein the available uplink transmission energy is energy for uplink signaling during a first time period of a time window, wherein, The time window is a period of time in which an average value of the transmission power of the terminal device does not exceed a first threshold value, the average value of the transmission power is an average value of the transmission power of each time unit within the time window, and/or, The time window is a time period in which the terminal equipment can transmit the uplink signal by using the transmission power higher than the preset maximum transmission power, and/or the energy of the terminal equipment for transmitting the uplink signal in the time window does not exceed a second threshold.
8. 8. The method of claim 6, wherein the first indication information is carried in a medium access control unit MAC CE, or the first indication information is an uplink control information UCI.
9. 9. The method of claim 8, wherein the MAC CE comprises a first field and a second field, wherein: The first field is reserved bit, the second field indicates the first indication information, or The second field indicates the first indication information when the first field is a first state value, and the second field indicates the power headroom level when the first field is a second state value, or The first field indicates a power headroom level, and the second field indicates the first indication information.
10. 10. The method of claim 8, wherein the UCI is carried on a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
11. 11. The method of claim 6, wherein the method further comprises: and determining a target resource in the first time period according to the first indication information, wherein the target resource is used for the terminal equipment to send uplink signals, or determining that the resource in the first time period is not used for the terminal equipment to send uplink signals according to the first indication information.
12. 12. A communication device comprising at least one processor and a memory having instructions stored thereon, which when executed on a computer, cause the computer to perform the method of any of claims 1-5.
13. 13. A communication device comprising at least one processor and a memory having instructions stored thereon, which when executed on a computer, cause the computer to perform the method of any of claims 6-11.
14. 14. A computer readable storage medium storing instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1-5.
15. 15. A computer readable storage medium storing instructions which, when run on a computer, cause the computer to perform the method of any one of claims 6-11.
16. 16. A computer program product, characterized in that the computer program product, when run on a computer, causes the computer to perform the method according to any of claims 1-5.
17. 17. A computer program product, characterized in that the computer program product, when run on a computer, causes the computer to perform the method according to any of claims 6-11.

Description

Communication method and device Technical Field The present application relates to the field of wireless communications technologies, and in particular, to a communication method and apparatus. Background Currently, wireless communication systems are widely deployed to provide various types of communication such as voice traffic, data traffic, and so on. In some scenes, for example, scenes such as unmanned aerial vehicle, 4K high-definition live broadcast, and the like, the requirement on uplink coverage and transmission rate is met. In uplink transmission, uplink power control is a technique that can achieve better coverage and transmission rate. For example, for terminal devices (or edge users) farther from the base station, the path loss is larger, and these edge users can use larger transmitting power than terminal devices (center users) closer to the base station, so as to compensate the path loss caused by long-distance transmission, so that the edge users obtain better uplink coverage and transmission rate performance. In order to improve uplink coverage and transmission rate, a terminal device provided with a high-capacity power amplifier (or called power amplifier) can send signals at a maximum transmission power higher than that specified by a standard in a short time, so that when the terminal device is positioned at the edge of a cell or large data packets exist for transmission, the transmission rate of the terminal device is improved, and further user experience is improved. However, after the terminal device adopts the instantaneous high-power transmission for a period of time, the energy shortage of the terminal device for uplink transmission may be caused, and when the network device continues to schedule the terminal device to transmit the uplink signal, the situation that the terminal device fails to transmit the uplink signal due to the insufficient energy of the uplink transmission may occur, so that uplink coverage and uplink transmission rate are affected. Therefore, further research is still needed on how to further increase the uplink coverage and transmission rate. Disclosure of Invention The embodiment of the application provides a communication method and a communication device, which are used for improving uplink coverage and transmission rate. In a first aspect, a communication method is provided, which is applied to a terminal device or a chip inside the terminal device. In the method, the terminal equipment determines available uplink transmission energy in a first time period, wherein the first time period comprises a plurality of time units, and sends first indication information to the network equipment, wherein the first indication information is used for indicating the available uplink transmission energy. Therefore, the terminal equipment can send the available uplink transmission energy to the network equipment in the first time period, so that the terminal equipment with insufficient available uplink transmission energy is prevented from being scheduled by the network equipment, on one hand, the uplink resource waste caused by unnecessary terminal equipment scheduling by the network equipment can be reduced, and on the other hand, the condition that the uplink signal transmission of the terminal equipment fails due to insufficient energy can be reduced, and the uplink coverage and the uplink rate of the terminal equipment can be improved. In one possible implementation, the available uplink transmission energy is energy for uplink signal transmission during a first time period of the time window, wherein, The time window is a period of time in which the average value of the transmission power of the terminal device, which is the average value of the transmission power of the respective time units within the time window, does not exceed the first threshold, and/or, The time window is a period of time during which the terminal device can transmit an uplink signal using a transmission power higher than a preset maximum transmission power, and/or, And the energy of the terminal equipment for uplink signal transmission does not exceed a second threshold value in the time window. In one possible implementation, the first threshold may be pre-set by a protocol, or may be configured by the network device according to higher layer signaling, where the higher layer signaling may be a radio resource control (radio resource control, RRC) message, or a medium access control element (MEDIA ACCESS control control element, MAC CE), or downlink control information (downlink control information, DCI). In one possible implementation, the preset maximum transmit power may be the maximum transmit power of the terminal device specified in the standard, for example 23dBm, 26dBm or 14dBm. In one possible implementation, the first indication information is available uplink transmission energy, or an index of the available uplink transmission energy, or an average transmission power of the upl