JP-7856760-B2 - Communication method and device

JP7856760B2JP 7856760 B2JP7856760 B2JP 7856760B2JP-7856760-B2

Inventors

▲劉▼ ▲イェ▼
▲張▼ 茜

Assignees

華為技術有限公司

Dates

Publication Date: 20260511
Application Date: 20220914
Priority Date: 20211022

Claims (13)

A step of receiving first instruction information, wherein the first instruction information indicates a first uplink transmission resource, A step of determining whether the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, A step of determining a first set maximum output power based on a first maximum power reduction when the first uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, wherein the first maximum power reduction is a maximum power reduction corresponding to concurrent mode , and the first maximum power reduction is determined based on the first uplink transmit resource and the first sidelink transmit resource . A method comprising the steps of determining the transmit power of a first uplink transmit and the transmit power of a first sidelink transmit based on the first set maximum output power, wherein the sum of the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit does not exceed the first set maximum output power, the first uplink transmit is carried by the first uplink transmit resource, and the first sidelink transmit is carried by the first sidelink transmit resource.
The aforementioned method, If the first uplink transmission resource does not overlap with the first sidelink transmission resource in the time domain, A step of determining a second set maximum output power based on a second maximum power reduction, wherein the second maximum power reduction is a maximum power reduction corresponding to the carrier on which the first uplink transmission resource is located. A step of determining the transmit power of the first uplink transmit based on the second set maximum output power, wherein the transmit power of the first uplink transmit does not exceed the second set maximum output power, or a step of determining a third set maximum output power based on a third maximum power reduction, wherein the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located. The method according to claim 1, further comprising the step of determining the transmit power of the first sidelink transmit based on the third set maximum output power, wherein the transmit power of the first sidelink transmit does not exceed the third set maximum output power.
The aforementioned method, A step of receiving a second instruction information, wherein the second instruction information indicates a second uplink transmission resource, A step of determining a fourth set maximum output power based on a fourth maximum power reduction when the second uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, wherein the fourth maximum power reduction is a maximum power reduction corresponding to the concurrent mode, and the fourth maximum power reduction is determined based on the second uplink transmit resource and the first sidelink transmit resource. The method according to claim 1, further comprising the steps of: determining the transmit power of a second uplink transmit based on the first set maximum output power when the fourth set maximum output power is greater than the first set maximum output power, wherein the sum of the transmit power of the second uplink transmit and the transmit power of the first sidelink transmit does not exceed the first set maximum output power, and the second uplink transmit is carried by the second uplink transmit resource.
The first uplink transmission resource and the first sidelink transmission resource are located in the same frequency band. The method according to claim 1.
A transceiver module configured to receive first instruction information, wherein the first instruction information indicates a first uplink transmission resource, A processing module configured to determine whether the first uplink transmission resource overlaps with a first sidelink transmission resource in the time domain, If the first uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, the processing module is further configured to determine a first set maximum output power based on a first maximum power reduction, wherein the first maximum power reduction is a maximum power reduction corresponding to concurrent mode, and the first maximum power reduction is determined based on the first uplink transmit resource and the first sidelink transmit resource . A communication device comprising a processing module, the processing module further configured such that the processing module determines the transmit power of a first uplink transmission and the transmit power of a first sidelink transmission based on the first set maximum output power, and the sum of the transmit power of the first uplink transmission and the transmit power of the first sidelink transmission does not exceed the first set maximum output power, the first uplink transmission is carried by the first uplink transmission resource, and the first sidelink transmission is carried by the first sidelink transmission resource.
If the first uplink transmission resource does not overlap with the first sidelink transmission resource in the time domain, The processing module is further configured to determine a second set maximum output power based on a second maximum power reduction, wherein the second maximum power reduction is the maximum power reduction corresponding to the carrier on which the first uplink transmission resource is located. The processing module is further configured to determine the transmit power of the first uplink transmit based on the second set maximum output power, such that the transmit power of the first uplink transmit does not exceed the second set maximum output power, or the processing module is further configured to determine a third set maximum output power based on a third maximum power reduction, such that the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located. The processing module is further configured to determine the transmit power of the first sidelink transmission based on the third set maximum output power, and to ensure that the transmit power of the first sidelink transmission does not exceed the third set maximum output power. The communication device according to claim 5 .
The transceiver module is further configured to receive a second instruction information, the second instruction information instructing a second uplink transmission resource, If the second uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the processing module is further configured to determine a fourth set maximum output power based on a fourth maximum power reduction, wherein the fourth maximum power reduction is the maximum power reduction corresponding to the concurrent mode, and the fourth maximum power reduction is determined based on the second uplink transmission resource and the first sidelink transmission resource. If the fourth set maximum output power is greater than the first set maximum output power, the processing module further configures itself to determine the transmit power of the second uplink transmission based on the first set maximum output power, such that the sum of the transmit power of the second uplink transmission and the transmit power of the first sidelink transmission does not exceed the first set maximum output power, and the second uplink transmission is carried by the second uplink transmission resource. The communication device according to claim 5 .
The first uplink transmission resource and the first sidelink transmission resource are located in the same frequency band. The communication device according to claim 5 .
The communication device according to claim 5 , comprising a user device or a chip of a user device.
A computer program comprising computer instructions, wherein when an instruction is executed on a communication device, the communication device, A step of receiving first instruction information, wherein the first instruction information indicates a first uplink transmission resource, A step of determining whether the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, A step of determining a first set maximum output power based on a first maximum power reduction when the first uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, wherein the first maximum power reduction is a maximum power reduction corresponding to concurrent mode , and the first maximum power reduction is determined based on the first uplink transmit resource and the first sidelink transmit resource . A computer program that enables the following steps to be performed: determining the transmit power of a first uplink transmit and the transmit power of a first sidelink transmit based on the first set maximum output power, wherein the sum of the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit does not exceed the first set maximum output power, and the first uplink transmit is carried by the first uplink transmit resource and the first sidelink transmit is carried by the first sidelink transmit resource.
When the aforementioned command is executed on the communication device, the communication device If the first uplink transmission resource does not overlap with the first sidelink transmission resource in the time domain, A step of determining a second set maximum output power based on a second maximum power reduction, wherein the second maximum power reduction is a maximum power reduction corresponding to the carrier on which the first uplink transmission resource is located. A step of determining the transmit power of the first uplink transmit based on the second set maximum output power, wherein the transmit power of the first uplink transmit does not exceed the second set maximum output power, or a step of determining a third set maximum output power based on a third maximum power reduction, wherein the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located. A computer program according to claim 10, which enables the computer program to perform the steps of determining the transmit power of the first sidelink transmit based on the third set maximum output power, wherein the transmit power of the first sidelink transmit does not exceed the third set maximum output power.
When the aforementioned command is executed on the communication device, the communication device A step of receiving a second instruction information, wherein the second instruction information indicates a second uplink transmission resource, A step of determining a fourth set maximum output power based on a fourth maximum power reduction when the second uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, wherein the fourth maximum power reduction is a maximum power reduction corresponding to the concurrent mode, and the fourth maximum power reduction is determined based on the second uplink transmit resource and the first sidelink transmit resource. A computer program according to claim 10, which enables the following steps: determining the transmit power of a second uplink transmission based on the first set maximum output power when the fourth set maximum output power is greater than the first set maximum output power, wherein the sum of the transmit power of the second uplink transmission and the transmit power of the first sidelink transmission does not exceed the first set maximum output power, and the second uplink transmission is carried by the second uplink transmission resource.
The computer program according to claim 10 , wherein the first uplink transmit resource and the first sidelink transmit resource are located in the same frequency band.

Description

This disclosure claims priority to Chinese Patent Application No. 202111235354.0 entitled “Communication Method and Apparatus,” filed with the China National Intellectual Property Administration on 22 October 2021, which is incorporated herein by reference in its entirety. Embodiments of this disclosure relate to the field of communications, and more specifically to communications methods and apparatus. To improve the security of user devices in Internet of Vehicle (Internet of Vehicle) application scenarios, the latency of communication between user devices needs to be reduced in these scenarios. The 3rd Generation Partnership Project (3GPP) network proposes Internet of Vehicle technology for vehicle-to-everything (V2X) communication within long-term evolution (LTE) systems. V2X communication targets high-speed devices such as vehicles and is a fundamental and crucial technology to be used in future scenarios with very high communication latency requirements, such as intelligent vehicles, autonomous driving, and intelligent transportation systems. LTE V2X communication can support communication scenarios with and without network coverage. Resource allocation methods for LTE V2X communication can include network access device scheduling modes, such as the Evolutionary Universal Terrestrial Radio Access Network Node B (E-UTRAN Node B, eNB) scheduling mode, and UE autonomous selection mode. Based on V2X technology, vehicle user equipment (Vehicle UE, V-UE) can transmit several pieces of information to surrounding V-UEs, such as position, speed, and intention (turn, parallel, reverse) periodically, and can also transmit information triggered by several non-periodic events. Similarly, V-UEs receive information from surrounding users in real time. With the advancement of 5G NR technology within the 3GPP standards organization, 5G NR V2X is further developing. For example, 5G NR V2X can meet the requirements of a wider range of application scenarios by supporting lower transmission latency, more reliable communication transmission, higher throughput, and a better user experience. Embodiments of this disclosure provide a communication method and apparatus for improving the success rate of communication by flexibly determining an appropriate maximum output power setting and appropriately determining the transmit power for uplink transmissions and/or sidelink transmissions. This is a schematic diagram of a communication architecture according to one embodiment of the present disclosure .Several possible Internet of Vehicle communication scenarios are presented.This disclosure shows communication method 100.This disclosure shows communication method 200.This disclosure shows a communication method 300 according to one embodiment of this disclosure.The power determination method 400 according to this disclosure is shown.This is a schematic block diagram of a communication device according to one embodiment of the present disclosure .This is a schematic diagram of a communication device 20 according to one embodiment of the present disclosure . The following describes the technical solutions of embodiments of this disclosure with reference to the attached drawings. The technical solutions of the embodiments of this disclosure can be applied to various communication systems, such as long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, new radio (NR) systems, and other future evolved wireless communication systems. Figure 1 is a schematic diagram of a communication architecture according to one embodiment of the present disclosure . As shown in Figure 1, the communication system of the present disclosure includes at least one network device and two user devices. A V2X communication scenario is used as an example. V2X communication can support communication scenarios with and without network coverage. In a communication scenario with network coverage, the network device can communicate with two user devices through a Uu (UTRAN-to-UE) air interface. For example, uplink (UL) and downlink (DL) communication takes place between the RAN and UE 1 or UE 2 in Figure 1, and the two user devices can communicate with each other on a sidelink (SL) carrier. The network device and user devices in Figure 1 are within network coverage and can be connected, idle, or inactive. In a communication scenario without network coverage, the network device and user devices do not communicate with each other, and the two user devices can communicate with each other on an SL carrier. It should be noted that sidelink SL carriers are typically carriers on the PC5 interface. The term sidelink SL used herein is a limitation for the purpose of describing carriers on the PC5 interface, intended to distinguish them from carriers on the Uu interface, but does not constitute a substantial limitation. As an example,