Communication method and device

Abstract

The communication method includes the steps of determining whether a first uplink transmission resource overlaps with a first sidelink transmission resource in the time domain, and if the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, determining a first set maximum output power based on a first maximum power reduction, where the first maximum power reduction is a maximum power reduction corresponding to a concurrent mode, and determining a transmission power of a first uplink transmission and a transmission power of a first sidelink transmission based on the first set maximum output power.

Description

[Technical Field]

[0001] Book Disclosure This invention 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.

[0002] Book Disclosure The embodiments relate to the field of communications, and more specifically, to communication methods and apparatus. [Background technology]

[0003] 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 is proposing Internet of Vehicle technology for vehicle-to-everything (V2X) communication in long-term evolution (LTE) systems.

[0004] V2X communication targets high-speed devices such as vehicles and is a fundamental and important 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, and the resource allocation scheme for LTE V2X communication can be a network access device scheduling mode, e.g., an evolved universal terrestrial radio access network node B (E-UTRAN Node B, eNB) scheduling mode, and an autonomous UE selection mode. Based on V2X technology, vehicle user equipment (Vehicle UE, V-UE) can transmit some information about itself to surrounding V-UEs, such as location, speed, and intention (turn, parallel, reverse) which can be transmitted periodically, as well as information triggered by some non-periodic events. Similarly, V-UEs also receive information from surrounding users in real time.

[0005] 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. [Overview of the Initiative]

[0006] Book Disclosure The embodiment provides a communication method and apparatus to improve the communication success rate by flexibly determining an appropriate maximum output power setting and appropriately determining the transmit power for uplink transmissions and / or sidelink transmissions. [Means for solving the problem]

[0007] According to the first embodiment, the first device receives first instruction information from a network device, wherein the first instruction information indicates a first uplink transmission resource; the first device determines whether the first uplink transmission resource overlaps with a first sidelink transmission resource in the time domain; and if the first uplink transmission resource overlaps with a first sidelink transmission resource in the time domain, the first device determines a first set maximum output power based on a first maximum power reduction. A communication method is provided, comprising the steps of: the maximum power reduction being a maximum power reduction corresponding to concurrent mode; and the first device determining the transmit power of a first uplink transmit and the transmit power of a first sidelink transmit based on a 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.

[0008] It should be understood that the first device may be a terminal, a composite device or component having the functions of a terminal, or a communication chip used in a terminal (e.g., a processor, baseband chip, or chip system).

[0009] In the first embodiment, when the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the first device determines the set maximum output power using a maximum power reduction corresponding to concurrent mode, and determines the transmission power for uplink transmission and the transmission power for sidelink transmission based on the set maximum output power in concurrent mode. As a result, the transmission power in concurrent mode can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0010] In the above-described embodiment, when the first uplink transmission resource overlaps with the first sidelink transmission resource, the first device determines an appropriate maximum output power setting in concurrent mode, thereby effectively improving communication quality and effectively improving the communication success rate.

[0011] Referencing the first embodiment, in some embodiments of the first embodiment, the method further includes the steps of: the first device determining a first set maximum output power based on a first maximum power reduction, provided that the first uplink transmit resource does not overlap with the first sidelink transmit resource in the time domain; and the first device determining the transmit power of the first uplink transmit or the transmit power of the first sidelink transmit based on the first set maximum output power, wherein the transmit power of the first uplink transmit or the transmit power of the first sidelink transmit does not exceed the first set maximum output power.

[0012] Referencing the first embodiment, in some embodiments of the first embodiment, the method further includes the steps of: when the first uplink transmit resource does not overlap with the first sidelink transmit resource in the time domain, the first device determining 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 transmit resource is located; the first device 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 the first device 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; and the first device 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.

[0013] In this embodiment, when the uplink transmission resources do not overlap with the sidelink transmission resources, the first device determines the set maximum output power for each transmission using the maximum power reduction corresponding to each transmission in order to determine the transmission power for each transmission. This mitigates the problem of reduced communication quality and decreased communication success rate due to excessively large maximum power reductions in scenarios where the transmission resources do not overlap in the time domain.

[0014] In the above-described embodiment, since the first device flexibly determines an appropriate maximum output power setting when the first uplink transmission resource does not overlap with the first sidelink transmission resource, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0015] Referring to the first embodiment, in some embodiments of the first embodiment, when a first uplink transmit resource overlaps with a first sidelink transmit resource in the time domain and the priority of the first uplink transmit is higher than the priority of the first sidelink transmit, the first device determining the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit based on a first set maximum power, includes the first device determining the transmit power of the first uplink transmit, wherein the transmit power of the first uplink transmit is the smaller of the transmit power of the first uplink transmit and the first set maximum power, and the transmit power of the first uplink transmit is determined based on a second maximum power reduction, where the second maximum power reduction is the maximum power reduction corresponding to the carrier on which the first uplink transmit resource is located; and the first device determining the transmit power of the first sidelink transmit based on a first set maximum power and the transmit power of the first uplink transmit.

[0016] In the above-described embodiment, in order to further improve communication quality, the first device can take into account the priority of overlapping transmission resources and preferentially determine the transmission power for high-priority transmissions, thereby ensuring the success rate of high-priority transmissions.

[0017] Referring to the first embodiment, in some embodiments of the first embodiment, when a first uplink transmit resource overlaps with a first sidelink transmit resource in the time domain, the first device determining the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit based on a first set maximum output power includes the first device determining the transmit power of the first sidelink transmit, wherein the transmit power of the first sidelink transmit is the smaller of the transmit power of the first sidelink transmit and the first set maximum output power, and the transmit power of the first sidelink transmit is determined based on a third maximum power reduction, where the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located; and the first device determining the transmit power of the first uplink transmit based on a first set maximum output power and the transmit power of the first sidelink transmit.

[0018] In the above-described embodiment, in order to further improve communication quality, the first device can take into account the priority of overlapping transmission resources and preferentially determine the transmission power for high-priority transmissions, thereby ensuring the success rate of high-priority transmissions.

[0019] Referring to the first aspect, in some embodiments of the first aspect, the first maximum power reduction is determined based on the first uplink transmit resource and the first sidelink transmit resource.

[0020] Referencing the first embodiment, in some embodiments of the first embodiment, the method further includes: a first device receiving a second instruction information from a network device, the second instruction information indicating a second uplink transmit resource; a first device determining a fourth configurable maximum output power based on a fourth maximum power reduction, where the fourth maximum power reduction is a maximum power reduction corresponding to concurrent mode, and the fourth maximum power reduction is determined based on the second uplink transmit resource and the first sidelink transmit resource, where the fourth configurable maximum output power is greater than the first configurable maximum output power, where the first device determining the transmit power of the second uplink transmit based on the first configurable maximum output power, where 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 configurable maximum output power, and the second uplink transmit is carried by the second uplink transmit resource.

[0021] If one sidelink transmit resource overlaps with multiple uplink transmit resources, multiple configurable maximum output power values ​​are determined based on the maximum power reduction determined based on the sidelink transmit resource and each uplink transmit resource, and the minimum value of these multiple configurable maximum output power values ​​is determined as the configurable maximum output power of the first device.

[0022] In the embodiments described above, when one sidelink transmission resource overlaps with multiple uplink transmission resources, it can be guaranteed that the spectral index of spurious emissions meets the requirements in multiple time-domain resources where the sidelink transmission resource overlaps with multiple uplink transmission resources, and communication quality can be further improved.

[0023] Referencing the first embodiment, in some embodiments of the first embodiment, the method further includes the steps of: first device determining at least one second sidelink transmit resource; first device determining a fifth set maximum output power based on a fifth maximum power reduction if the second sidelink transmit resource overlaps with a first uplink transmit resource in the time domain, wherein the fifth maximum power reduction is a maximum power reduction corresponding to a concurrent mode, and the fifth maximum power reduction is determined based on the second sidelink transmit resource and the first uplink transmit resource; and second device determining the transmit power of a second sidelink transmit based on a first set maximum output power if the fifth set maximum output power is greater than the first set maximum output power, wherein the sum of the transmit power of the second sidelink transmit and the transmit power of the first uplink transmit does not exceed the first set maximum output power, and the second sidelink transmit is carried by the second sidelink transmit resource.

[0024] If one uplink transmission resource overlaps with multiple sidelink transmission resources, it should be understood that multiple configurable maximum output power values ​​are determined based on the maximum power reduction determined based on the uplink transmission resource and each sidelink transmission resource, and the minimum value of the multiple configurable maximum output power values ​​is determined as the configurable maximum output power of the first device.

[0025] In the embodiments described above, when one uplink transmission resource overlaps with multiple sidelink transmission resources, it can be guaranteed that the spectral index of spurious emissions meets the requirements in multiple time-domain resources where the uplink transmission resource overlaps with multiple sidelink transmission resources, and communication quality can be further improved.

[0026] Referring to the first embodiment, in some embodiments of the first embodiment, the first uplink transmit resource and the first sidelink transmit resource are located in the same frequency band.

[0027] According to the second aspect, the first device receives first instruction information from a network device, wherein the first instruction information indicates a first uplink transmission resource; the first device receives second instruction information from a network device, wherein the second instruction information indicates a second uplink transmission resource; the first device determines whether the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain; and if the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain, the first device determines whether the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain. A communication method is provided, comprising the steps of: determining a first set maximum output power based on a large power reduction, wherein the first maximum power reduction is a maximum power reduction corresponding to a concurrent mode; and the steps of a first device determining the transmit power of a first uplink transmit and the transmit power of a second uplink 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 second uplink transmit does not exceed the first set maximum output power, the first uplink transmit is carried by the first uplink transmit resource, and the second uplink transmit is carried by the second uplink transmit resource.

[0028] It should be understood that the first device may be a terminal, a composite device or component having the functions of a terminal, or a communication chip used in a terminal (e.g., a processor, baseband chip, or chip system).

[0029] In the second embodiment, when the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain, the first device determines the set maximum output power using the maximum power reduction corresponding to concurrent mode, and determines the transmission power for uplink transmission and sidelink transmission based on the set maximum output power in concurrent mode. As a result, the transmission power in concurrent mode can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0030] In the above-described embodiment, when the first uplink transmission resource overlaps with the second uplink transmission resource, the first device determines an appropriate maximum output power setting in concurrent mode, thereby effectively improving communication quality and communication success rate.

[0031] Referencing the second aspect, in some embodiments of the second aspect, the method further includes the steps of: the first device determining a first set maximum output power based on a first maximum power reduction, provided that the first uplink transmit resource does not overlap with the second uplink transmit resource in the time domain; and the first device determining the transmit power of a first uplink transmit or a second uplink transmit based on the first set maximum output power, wherein the transmit power of the first uplink transmit or the transmit power of the second uplink transmit does not exceed the first set maximum output power.

[0032] Referencing the second aspect, in some embodiments of the second aspect, the method further includes the steps of: when the first uplink transmit resource does not overlap with the second uplink transmit resource in the time domain, the first device determining 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 transmit resource is located; the first device 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 the first device 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 second uplink transmit resource is located; and the first device determining the transmit power of the second uplink transmit based on a third set maximum output power, wherein the transmit power of the second uplink transmit does not exceed the third set maximum output power.

[0033] In this embodiment, when the first uplink transmission resource does not overlap with the second uplink transmission resource, the first device determines the set maximum output power for each transmission using the maximum power reduction corresponding to each transmission in order to determine the transmission power for each transmission. This mitigates the problem of reduced communication quality and decreased communication success rate due to excessively large maximum power reductions in scenarios where the transmission resources do not overlap in the time domain.

[0034] In the above-described embodiment, since the first device flexibly determines an appropriate maximum output power setting when the first uplink transmission resource does not overlap with the second uplink transmission resource, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0035] A third embodiment provides a communication method comprising: a first device receiving first instruction information from a network device, wherein the first instruction information indicates an uplink transmission resource; the first device determining a sidelink transmission resource; the first device determining 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 device determining the transmission power for an uplink transmission and the transmission power for a sidelink transmission based on a first set maximum output power, wherein the sum of the transmission power for the uplink transmission and the transmission power for the sidelink transmission does not exceed the first set maximum output power, the uplink transmission is carried by the uplink transmission resource, and the sidelink transmission is carried by the sidelink transmission resource.

[0036] It should be understood that the first device may be a terminal, a composite device or component having the functions of a terminal, or a communication chip used in a terminal (e.g., a processor, baseband chip, or chip system).

[0037] In the third aspect, since sidelink transmission resources may overlap with uplink transmission resources, the set maximum output power is determined using maximum power reduction corresponding to concurrent mode, and the transmission power for uplink transmission and sidelink transmission are determined based on the set maximum output power in concurrent mode, so that the transmission power can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0038] In the above-described embodiment, when uplink transmission resources may overlap with sidelink transmission resources, the first device flexibly determines an appropriate maximum output power setting, thereby effectively improving communication quality and communication success rate.

[0039] According to a fourth aspect, a communication device is provided, comprising a transceiver module configured to receive first instruction information from a network device, wherein the first instruction information indicates a first uplink transmission resource, and 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 the maximum power reduction corresponding to concurrent mode, and the processing module is further configured to determine the transmit power of the first uplink transmit and the transmit power of the 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.

[0040] In the fourth aspect, when the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the first device determines the set maximum output power using a maximum power reduction corresponding to concurrent mode, and determines the transmission power for uplink transmission and sidelink transmission based on the set maximum output power in concurrent mode. As a result, the transmission power in concurrent mode can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0041] In the above-described embodiment, when the first uplink transmission resource overlaps with the first sidelink transmission resource, the first device determines an appropriate maximum output power setting in concurrent mode, thereby effectively improving communication quality and effectively improving the communication success rate.

[0042] Referring to the fourth aspect, in some embodiments of the fourth aspect, if the first uplink transmit resource does not overlap 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, and the processing module is further configured to determine the transmit power of the first uplink transmit or the transmit power of the first sidelink transmit based on the first set maximum output power, such that the transmit power of the first uplink transmit or the transmit power of the first sidelink transmit does not exceed the first set maximum output power.

[0043] Referencing the fourth aspect, in some embodiments of the fourth aspect, the processing module is further configured to determine a second set maximum output power based on a second maximum power reduction, where the second maximum power reduction is the maximum power reduction corresponding to the carrier on which the first uplink transmit resource is located, and the processing module is further configured to determine the transmit power of a first uplink transmit based on the second set maximum output power, where the transmit power of the first uplink transmit does not exceed the second set maximum output power, or the processing module is configured to determine a third set maximum output power based on a third maximum power reduction, where the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located, and the processing module is further configured to determine the transmit power of a first sidelink transmit based on the third set maximum output power, where the transmit power of the first sidelink transmit does not exceed the third set maximum output power.

[0044] In this embodiment, when the uplink transmission resources do not overlap with the sidelink transmission resources, the first device determines the set maximum output power for each transmission using the maximum power reduction corresponding to each transmission in order to determine the transmission power for each transmission. This mitigates the problem of reduced communication quality and decreased communication success rate due to excessively large maximum power reductions in scenarios where the transmission resources do not overlap in the time domain.

[0045] In the above-described embodiment, since the first device flexibly determines an appropriate maximum output power setting when the first uplink transmission resource does not overlap with the first sidelink transmission resource, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0046] Referencing the fourth aspect, in some embodiments of the fourth aspect, if a first uplink transmit resource overlaps with a first sidelink transmit resource in the time domain and the priority of the first uplink transmit is higher than the priority of the first sidelink transmit, the processing module is specifically configured to determine the transmit power of the first uplink transmit, where the transmit power of the first uplink transmit is the smaller of the transmit power of the first uplink transmit and a first set maximum output power, where the transmit power of the first uplink transmit is determined based on a second maximum power reduction, where the second maximum power reduction is the maximum power reduction corresponding to the carrier on which the first uplink transmit resource is located, and the processing module is specifically configured to determine the transmit power of the first sidelink transmit based on a first set maximum output power and the transmit power of the first uplink transmit.

[0047] In the above-described embodiment, in order to further improve communication quality, the first device can take into account the priority of overlapping transmission resources and preferentially determine the transmission power for high-priority transmissions, thereby ensuring the success rate of high-priority transmissions.

[0048] Referencing the fourth aspect, in some embodiments of the fourth aspect, if a first uplink transmit resource overlaps with a first sidelink transmit resource in the time domain and the priority of the first sidelink transmit is higher than the priority of the first uplink transmit, the processing module is specifically configured to determine the transmit power of the first sidelink transmit, where the transmit power of the first sidelink transmit is the smaller of the transmit power of the first sidelink transmit and a first set maximum output power, where the transmit power of the first sidelink transmit is determined based on a third maximum power reduction, where the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located, and the processing module is specifically configured to determine the transmit power of the first uplink transmit based on a first set maximum output power and the transmit power of the first sidelink transmit.

[0049] In the above-described embodiment, in order to further improve communication quality, the first device can take into account the priority of overlapping transmission resources and preferentially determine the transmission power for high-priority transmissions, thereby ensuring the success rate of high-priority transmissions.

[0050] Referring to the fourth aspect, in some embodiments of the fourth aspect, the first maximum power reduction is determined based on the first uplink transmit resource and the first sidelink transmit resource.

[0051] Referencing the fourth aspect, in some embodiments of the fourth aspect, the transceiver module is further configured to receive a second instruction information from a network device, the second instruction information instructing a second uplink transmit resource, and if the second uplink transmit resource overlaps with a first sidelink transmit resource in the time domain, the processing module determines a fourth configurable maximum output power based on a fourth maximum power reduction, the fourth maximum power reduction being a maximum power reduction corresponding to concurrent mode, and the fourth maximum power reduction being determined based on the second uplink transmit resource and the first sidelink transmit resource, and if the fourth configurable maximum output power is greater than the first configurable maximum output power, the processing module determines the transmit power of the second uplink transmit based on the first configurable maximum output power, and is further configured such that 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 configurable maximum output power, and the second uplink transmit is carried by the second uplink transmit resource.

[0052] If one sidelink transmit resource overlaps with multiple uplink transmit resources, multiple configurable maximum output power values ​​are determined based on the maximum power reduction determined based on the sidelink transmit resource and each uplink transmit resource, and the minimum value of these multiple configurable maximum output power values ​​is determined as the configurable maximum output power of the first device.

[0053] In the embodiments described above, when one sidelink transmission resource overlaps with multiple uplink transmission resources, it can be guaranteed that the spectral index of spurious emissions meets the requirements in multiple time-domain resources where the sidelink transmission resource overlaps with multiple uplink transmission resources, and communication quality can be further improved.

[0054] Referencing the fourth aspect, in some embodiments of the fourth aspect, the first device determines at least one second sidelink transmit resource, and if the second sidelink transmit resource overlaps with a first uplink transmit resource in the time domain, the processing module is further configured to determine a fifth set maximum output power based on a fifth maximum power reduction, where the fifth maximum power reduction is a maximum power reduction corresponding to a concurrent mode, and the fifth maximum power reduction is determined based on the second sidelink transmit resource and the first uplink transmit resource, and if the fifth set maximum output power is greater than the first set maximum output power, the processing module is further configured to determine the transmit power of the second sidelink transmit based on the first set maximum output power, where the sum of the transmit power of the second sidelink transmit and the transmit power of the first uplink transmit does not exceed the first set maximum output power, and the second sidelink transmit is carried by the second sidelink transmit resource.

[0055] If one uplink transmission resource overlaps with multiple sidelink transmission resources, it should be understood that multiple configurable maximum output power values ​​are determined based on the maximum power reduction determined based on the uplink transmission resource and each sidelink transmission resource, and the minimum value of the multiple configurable maximum output power values ​​is determined as the configurable maximum output power of the first device.

[0056] In the embodiments described above, when one uplink transmission resource overlaps with multiple sidelink transmission resources, it can be guaranteed that the spectral index of spurious emissions meets the requirements in multiple time-domain resources where the uplink transmission resource overlaps with multiple sidelink transmission resources, and communication quality can be further improved.

[0057] Referring to the fourth aspect, in some embodiments of the fourth aspect, the first uplink transmit resource and the first sidelink transmit resource are located in the same frequency band.

[0058] According to a fifth aspect, a transceiver module configured to receive first instruction information from a network device, wherein the first instruction information indicates a first uplink transmission resource, and the transceiver module is further configured to receive second instruction information from the network device, wherein the second instruction information indicates a second uplink transmission resource; and a processing module configured to determine whether the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain, wherein the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain. If present, the processing module is further configured to determine a first set maximum output power based on a first maximum power reduction, where the first maximum power reduction is the maximum power reduction corresponding to concurrent mode, and the processing module is further configured to determine the transmit power of a first uplink transmit and a transmit power of a second uplink transmit based on a first set maximum output power, where the sum of the transmit power of the first uplink transmit and the transmit power of the second uplink transmit does not exceed the first set maximum output power, where the first uplink transmit is carried by the first uplink transmit resource and the second uplink transmit is carried by the second uplink transmit resource, and A communication device including the following is provided.

[0059] It should be understood that the first device may be a terminal, a composite device or component having the functions of a terminal, or a communication chip used in a terminal (e.g., a processor, baseband chip, or chip system).

[0060] In the fifth aspect, when the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain, the first device determines the set maximum output power using a maximum power reduction corresponding to concurrent mode, and determines the transmission power for uplink transmission and sidelink transmission based on the set maximum output power in concurrent mode. As a result, the transmission power in concurrent mode can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0061] In the above-described embodiment, when the first uplink transmission resource overlaps with the second uplink transmission resource, the first device determines an appropriate maximum output power setting in concurrent mode, thereby effectively improving communication quality and communication success rate.

[0062] Referring to the fifth aspect, in some embodiments of the fifth aspect, if the first uplink transmit resource does not overlap with the second uplink 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, and the processing module is further configured to determine the transmit power of the first uplink transmit or the transmit power of the second uplink transmit based on the first set maximum output power, such that the transmit power of the first uplink transmit or the transmit power of the second uplink transmit does not exceed the first set maximum output power.

[0063] Referencing the fifth aspect, in some embodiments of the fifth aspect, if the first uplink transmit resource does not overlap with the second uplink transmit 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, where the second maximum power reduction is the maximum power reduction corresponding to the carrier on which the first uplink transmit 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, where the transmit power of the first uplink transmit does not exceed the second set maximum output power. Alternatively, the processing module is further configured to determine a third set maximum output power based on a third maximum power reduction, where the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the second uplink transmit resource is located, and the processing module is further configured to determine the transmit power of the second uplink transmit based on the third set maximum output power, where the transmit power of the second uplink transmit does not exceed the third set maximum output power.

[0064] In this embodiment, when the first uplink transmission resource does not overlap with the second uplink transmission resource, the first device determines the set maximum output power for each transmission using the maximum power reduction corresponding to each transmission in order to determine the transmission power for each transmission. This mitigates the problem of reduced communication quality and decreased communication success rate due to excessively large maximum power reductions in scenarios where the transmission resources do not overlap in the time domain.

[0065] In the above-described embodiment, since the first device flexibly determines an appropriate maximum output power setting when the first uplink transmission resource does not overlap with the second uplink transmission resource, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0066] According to the sixth aspect, a communication device is provided, comprising the steps of: first device receiving first instruction information from a network device, wherein the first instruction information indicates an uplink transmission resource; first device determining a sidelink transmission resource; first device determining 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 a concurrent mode; and first device determining the transmission power of an uplink transmission and the transmission power of a sidelink transmission based on a first set maximum output power, wherein the sum of the transmission power of the uplink transmission and the transmission power of the sidelink transmission does not exceed the first set maximum output power, the uplink transmission is carried by the uplink transmission resource, and the sidelink transmission is carried by the sidelink transmission resource.

[0067] It should be understood that the first device may be a terminal, a composite device or component having the functions of a terminal, or a communication chip used in a terminal (e.g., a processor, baseband chip, or chip system).

[0068] In the sixth aspect, since sidelink transmission resources may overlap with uplink transmission resources, the set maximum output power is determined using maximum power reduction corresponding to concurrent mode, and the transmission power for uplink transmission and sidelink transmission are determined based on the set maximum output power in concurrent mode, so that the transmission power can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0069] In the above-described embodiment, when uplink transmission resources may overlap with sidelink transmission resources, the first device flexibly determines an appropriate maximum output power setting, thereby effectively improving communication quality and communication success rate.

[0070] Each of the above embodiments of a communication device may be a terminal, a chip used in a terminal, or another composite device or component capable of performing the functions of a terminal. If the communication device is a terminal device, the transceiver module may be a transmitter and receiver, or an integrated transceiver, and may include an antenna, radio frequency circuitry, etc. The processing module may be a processor, for example, a baseband chip. If the communication device is a component with terminal functions, the transceiver module may be a radio frequency unit, and the processing module may be a processor. If the communication device is a chip system, the transceiver module may be an input / output interface of the chip system, and the processing module may be a processor within the chip system, for example, a central processing unit (CPU).

[0071] According to the seventh aspect, a communication device is provided that includes one or more processors. The one or more processors may be coupled to memory and configured to execute programs or instructions in memory, so that the device performs any one of the aforementioned aspects or possible embodiments thereof. Optionally, the device further includes memory. Optionally, the device further includes a communication interface, and the processors are coupled to the communication interface.

[0072] According to the eighth aspect, a processing apparatus is provided. The processing apparatus includes a processor and an input / output interface. For example, the processing apparatus is applied to a communication device and is configured to perform the functions or methods of the first to third aspects. The processing apparatus may be, for example, a chip system. In a feasible embodiment, the chip system further includes a memory, which is configured to store program instructions and data necessary to perform the functions of the method according to the first aspect.

[0073] The chip system in the aforementioned embodiment may be a system on a chip (SOC) or a baseband chip. The baseband chip may include a processor, channel encoder, digital signal processor, modem, interface module, etc.

[0074] In a particular embodiment of the process, input signals received by an input interface may be received and input by, for example, a receiver (not limited to), and signals output by an output interface may be output to and transmitted by, for example, a transmitter (not limited to). In addition, the input interface and the output interface may be the same integrated interface, which is used separately as an input interface and an output interface at different times. Specific embodiments of the processor and various interfaces are described in this document. Disclosure The embodiments are not limited to this.

[0075] According to the ninth aspect, a computer-readable storage medium is provided. This computer-readable storage medium stores a computer program, and when the computer program is executed on a computer, the computer is enabled to perform the communication method described in any one of the first to third aspects.

[0076] According to the tenth aspect, a computer program product is provided. This computer program product includes a computer program (which may also be called code or instructions). When the computer program is executed, the computer is enabled to perform the method described in any of the preceding aspects or possible embodiments thereof.

[0077] According to the eleventh aspect, a chip system is provided, which includes a processor configured to call a computer program from memory and execute the computer program, and as a result, a communication device on which the chip system is installed performs the communication method described in any one of the first to third aspects. [Brief explanation of the drawing]

[0078] [Figure 1] This is a schematic diagram of a communication architecture according to one embodiment of the present disclosure. [Figure 2] Several possible Internet of Vehicle communication scenarios are presented. [Figure 3] This disclosure shows the communication method 100. [Figure 4] This disclosure shows communication method 200. [Figure 5] This disclosure shows a communication method 300 according to one embodiment of this disclosure. [Figure 6] The power determination method 400 described herein is shown. [Figure 7] This is a schematic block diagram of a communication device according to one embodiment of the present disclosure. [Figure 8] This is a schematic diagram of a communication device 20 according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0079] In the following, please refer to the attached drawings. Disclosure The technical solution of the embodiment will be described.

[0080] Book DisclosureThe technical solutions of this embodiment 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.

[0081] Figure 1 is the book Disclosure This is a schematic diagram of a communication architecture according to one embodiment. As shown in Figure 1, DisclosureThe communication system 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 via 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 via an SL carrier. Note that the sidelink SL carrier is typically the carrier on the PC5 interface. In this specification, the sidelink SL is a limitation for the purpose of describing carriers on the PC5 interface, intended to distinguish carriers on the PC5 interface from carriers on the Uu interface, but does not constitute a substantial limitation.

[0082] As an example, not limited to books Disclosure In this embodiment, the user equipment (for example, UE 1 and UE 2 in Figure 1) may be a device having wireless communication transceiver functionality, or a device or chip system within a device having wireless communication transceiver functionality. DisclosureThe communication devices in the embodiments support sidelink communication and may be deployed on the ground, including indoor devices, outdoor devices, roadside devices, handheld devices, or in-vehicle devices, or on the water (e.g., on a ship), or in the air (e.g., on an airplane, balloon, or satellite). Terminal devices may include mobile phones, tablet computers, computers with wireless transceiver functionality, virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, user equipment (UE), in-vehicle communication devices, in-vehicle communication chips, roadside units, or communication devices within roadside units.

[0083] As an example, not limited to books DisclosureIn this embodiment, a radio access network (RAN) device may be a device that provides wireless communication functionality services to terminal devices and is typically located on the network side. Specific embodiments include, but are not limited to, next-generation node B (g nodeB, gNB) in a 5th generation (5G) communication system, evolved node B (eNB) in an LTE system, radio network controller (RNC), node B (NB), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, device providing wireless communication services to terminal devices in a vehicle-to-everything (V2X) communication (also known as Internet of Vehicle communication) system, radio controller in a cloud radio access network (CRAN) scenario, relay station, in-vehicle device, wearable device, and network devices in a future evolved network. In a network structure, a base station may be a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including CU and DU nodes, or a RAN device including a control plane CU node (CU-CP node), a user plane CU node (CU-UP node), and a DU node.

[0084] The following provides a brief explanation of Uu air interface communication and SL communication.

[0085] UU Air Interface Communications The Uu air interface is used for communication between terminal devices and access network devices, and is sometimes abbreviated as Uu. In Uu air interface communication, the channel through which an access network device transmits information to a terminal device is called the downlink (DL) channel, and the downlink channel may include at least one of the following: a physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH). The PDCCH is used to carry downlink control information (DCI), and the PDSCH is used to carry downlink data. The channel through which a terminal device transmits information to an access network device is called the uplink (UL) channel, and the uplink channel may include at least one of the following: a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH). The PUSCH is used to carry uplink data. Uplink data is sometimes called uplink data information. PUCCH is used to carry uplink control information (UCI) that is fed back by the terminal device. For example, UCI may include channel state information (CSI), acknowledgment (ACK), and / or negative acknowledgement (NACK) that are fed back by the terminal device. Transmissions via the Uu air interface may include uplink transmissions and downlink transmissions. An uplink transmission means that the terminal device sends information to the access network device, and a downlink transmission means that the access network device sends information to the terminal device.Information in uplink transmissions may be uplink information or uplink signals. Uplink information or uplink signals may include at least one of PUSCH, PUCCH, and a sounding reference signal (SRS). Information in downlink transmissions may be downlink information or downlink signals. Downlink information or downlink signals may include at least one of PDSCH, PDCCH, a channel state information reference signal (CSI RS), and a phase tracking reference signal (PTRS).

[0086] Sidelink (SL) communication SL communication is used for communication between terminals. The SL transmit channel can be carried over an uplink carrier. The uplink carrier can be the uplink carrier on which network devices communicate with terminals, or it can be an independent carrier. It should be understood that sidelink is sometimes also called a sidelink, sideway link, or secondary link. Sidelink communication can use a physical sidelink shared channel (PSSCH) or a physical sidelink control channel (PSCCH). In other words, SL resources include PSCCH resources and PSSCH resources. PSCCH is used to carry first-level sidelink control information (SCI), and PSSCH is used to carry second-level SCI and data. The information within SCI is sometimes called a scheduling assignment (SA). SA includes relevant information used for data scheduling, such as PSSCH resource allocation and information such as modulation and encoding schemes. PSSCH and PSCCH can be channels transmitted from a transmitting terminal (e.g., terminal 1) to a receiving terminal (e.g., terminal 2).

[0087] A typical application scenario for Uu air interface communication and SL communication is the Internet of Vehicles. In V2X, each vehicle is a user device, and data can be transmitted directly between two vehicles via SL, or via a network based on the Uu interface.

[0088] With the advancement of wireless communication technology, people's demands for high data rates and user experience are increasing, as is the demand for proxy services to know about and communicate with people or objects in the surrounding area. This has led to the emergence of device-to-device (D2D) technology. The application of D2D technology can reduce the load on cellular networks, decrease battery power consumption of user equipment, improve data rates, and better meet the demands for proxy services. D2D technology enables multiple user equipment (UEs) that support D2D functionality to directly discover and communicate with each other, whether or not a network infrastructure exists. Considering the characteristics and advantages of D2D technology, application scenarios for the Internet of Vehicles based on D2D technology have been proposed. However, considering security, latency requirements are very high in this scenario and cannot be met using existing D2D technologies.

[0089] Therefore, the LTE technology network proposed by the 3rd Generation Partnership Project (3GPP) proposes an Internet of Vehicles technology for vehicle-to-everything (V2X) communication. V2X communication refers to communication between a vehicle and any external object, and includes, for example, vehicle-to-vehicle (V2V) communication shown in Figure 2(a), vehicle-to-pedestrian (V2P) communication and vehicle-to-infrastructure (V2I) communication shown in Figure 2(b), and vehicle-to-network (V2N) communication shown in Figure 2(c).

[0090] V2X communication targets high-speed devices such as vehicles and is a fundamental and important 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, and the resource allocation scheme for LTE V2X communication can be a network access device scheduling mode, e.g., an evolved universal terrestrial radio access network node B (E-UTRAN Node B, abbreviated as eNB) scheduling mode, and a UE autonomous selection mode. Based on V2X technology, vehicle user equipment (vehicle UE, abbreviated as V-UE) can transmit some information about itself to surrounding V-UEs, such as location, speed, and intention (turn, parallel, reverse) which can be transmitted periodically, as well as information triggered by some non-periodic events. Similarly, V-UEs also receive information from surrounding users in real time. The 3GPP standards body officially released the first version of the LTE V2X standard, or LTE Release 14, in early 2017.

[0091] LTE V2X meets several basic requirements in V2X scenarios. However, existing LTE V2X cannot effectively support future application scenarios such as fully intelligent driving and autonomous driving. With the development of 5G NR technology by the 3GPP standards body, 5G NR V2X is further evolving. 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.

[0092] As can be seen from the above, in an NR V2X scenario with network coverage, a user device can transmit a channel in three different transmission modes, and in several embodiments, a single carrier on the Uu air interface can be transmitted separately to a network device, and a single carrier on the sidelink (SL) can be transmitted separately to other user devices. For example, a single carrier may be transmitted to a network device only through the Uu air interface, or a single carrier may be transmitted to other user devices only through the SL carrier, or a single carrier may be transmitted separately to a network device and another terminal device through both the Uu air interface and the SL carrier. When a single carrier is transmitted separately to a network device and another terminal device through both the Uu air interface and the SL carrier, the periods of Uu air interface communication and SL carrier communication may overlap, or they may not overlap. The configured maximum output power suitable for the user device will differ in the different embodiments described above.

[0093] Currently, in V2X scenarios with network coverage, more specifically, when Uu and SL are operating simultaneously, the terminal device first determines separately its maximum configurable power when transmitting on SL single carrier and its maximum configurable power when transmitting on Uu single carrier. Then, it determines the maximum configurable power based on the maximum configurable power of the two transmission methods. It should be understood that maximum power reduction is required to determine the configurable power. When determining the configurable power during SL single carrier transmission, only the maximum power reduction during SL single carrier transmission is considered. When determining the configurable power during Uu single carrier transmission, only the maximum power reduction during Uu single carrier transmission is considered. In this case, if this method is used even when the periods of Uu air interface communication and SL carrier communication overlap, the determined configurable power may be inappropriate. As a result, there is a risk that radio frequency indicators (spurious emissions, spectrum emission mask, etc.) cannot be met.

[0094] It may be found that the method for determining the maximum output power setting of a terminal device does not determine whether the periods of Uu air interface communication and SL carrier communication overlap. Therefore, different maximum power reductions cannot be flexibly selected based on whether the periods of Uu air interface communication and SL carrier communication overlap. As a result, an appropriate setting output power cannot be determined.

[0095] Therefore, in communication scenarios with network coverage, more specifically, when Uu and SL are operating simultaneously, the urgent issue that needs to be addressed is how to flexibly determine the appropriate maximum output power setting.

[0096] Book Disclosure To better understand the technical solutions of the embodiments, several relevant concepts are explained below.

[0097] 1. Configured maximum output power The UE determines the configured maximum output power based on resources configured on the network, such as the RB allocation position, the continuous RB allocation length, and the modulation scheme. In the following formula, the configured maximum output power of a single carrier during SL transmission in NR V2X is used as an example to explain the existing configured maximum output power calculation method.

[0098] The configured maximum output power has upper and lower limits.

[0099] P CMAX_L,f,c ≤ P CMAX,f,c ≤ P CMAX_H,f,c is satisfied.

[0100] In this specification, P CMAX_L,f,c = MIN{P EMAX,c - ΔT C,c , P PowerClass - MAX(MAX(MPR c , A - MPR c ) + ΔT IB,c + ΔT C,c , P - MPR c , P Regulatory,c}.

[0101] P CMAX_H,f,c = MIN{P EMAX,c , P PowerClass , P Regulatory}.

[0102] In some scenarios, the upper limit is determined by the smallest value among the cell-level power P EMAX,c configured on the network, the transmission power class P PowerClass reported by the UE, and the regulatory limit P Regulatory . The lower limit is mainly determined by the transmission power class P PowerClass reported by the UE, and the maximum power reduction MPR c and A - MPR c . Generally, only the maximum power reduction MPR c may be considered in this specification.

[0103] Similarly, the configurable maximum output power for a Uu single carrier can also be set using a similar configurable maximum output power as that for an SL. Further details are not provided herein.

[0104] 2. Maximum power reduction (MPR) Maximum power reduction (MPR) is the maximum power reduction required by a terminal device based on the resource allocation of the physical channel to meet certain radio frequency indicators such as spurious emissions, spectrum emission mask, adjacent channel leakage ratio (ACLR), and error vector magnitude (EVM). Maximum power reduction is related to the allocation location of resource blocks (RBs) in the carrier, the number of RBs, and the modulation scheme of the communication, such as quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM). In addition to meeting the maximum power reduction (MPR), the UE may require additional maximum power reduction, i.e., A-MPR, to meet additional spectral coexistence indicators specified by additional regional regulations.

[0105] In the following sections, please refer to Figure 3. Disclosure The communication method 100 of this embodiment will be described in detail. Figure 3 shows this Disclosure This is an outline flowchart of Method 100.

[0106] S101: The first device receives first instruction information from the network device, and accordingly, the network device transmits first instruction information to the first device, and the first instruction information instructs the first uplink transmission resource.

[0107] For example, the first instruction information in this specification may be downlink control information or semi-persistent scheduling instruction information. For example, the first device may be a terminal device, which receives the first instruction information through a Uu air interface. The terminal device is in a radio resource control (RRC) connection state.

[0108] S102: The first device determines whether the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain.

[0109] For example, the first sidelink transmission resource described herein may be configured by a network device using instruction information (e.g., in sidelink transmission mode 1), or it may be pre-configured (e.g., in sidelink transmission mode 2).

[0110] The following is an example of how the first device determines that the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain. The UE obtains the control information for the first sidelink transmission resource before obtaining the control information for the first uplink transmission resource. In other words, based on the control information for the first uplink transmission resource and the control information for the first sidelink transmission resource, the UE can determine that the uplink transmission resource overlaps with multiple sidelink transmission resources in the time domain.

[0111] For example, the first uplink transmit resource and the first sidelink transmit resource are located in the same frequency band.

[0112] For example, method 100 may be used in a scenario where uplink transmission (Uu air interface communication) and sidelink transmission (PC5 interface communication) are performed simultaneously, such as a concurrent operation scenario.

[0113] Next, in a subsequent step, the first device determines a first set maximum output power based on the result of the determination in S102 (overlap or non-overlap).

[0114] S103: If the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the first device determines the first set maximum output power based on the first maximum power reduction.

[0115] It should be understood that the first configurable maximum output power as used herein is the maximum output power of the first device when the relevant radio frequency indicators are met. In other words, if the first uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, the sum of the configurable transmit power allocated by the first device to the first uplink transmit resource and the first sidelink transmit resource will not exceed the first configurable maximum output power.

[0116] It should be further understood that the first maximum power reduction as used herein corresponds to the maximum power reduction in concurrent mode. For example, the first maximum power reduction is determined based on the first uplink transmit resource and the first sidelink transmit resource.

[0117] For example, the first device pre-configures a plurality of first mapping relationships or a plurality of first correspondence relationships. These mapping relationships or first correspondence relationships may be mapping relationships between a first maximum power reduction and resource settings. Resource settings as defined herein may be one or more of the following parameters: resource block (RB) allocation position, continuous RB allocation length, modulation scheme, etc. The first device can determine a first maximum power reduction based on the plurality of first mapping relationships or first correspondence relationships. For example, the first mapping relationships or first correspondence relationships as defined herein may be presented in table form or in other forms, but are not limited to those present in this application.

[0118] The first device can first determine upper and lower limits of a first set maximum output power, and then determine the first set maximum output power based on the upper and lower limits. In one example, the first device determines the lower limit based on a first maximum power reduction. In another example, the first device determines the lower limit based on a first maximum power reduction and a first power class, and the first device determines the lower limit based on a first power class. Alternatively, the first power class as used herein may be determined based on transmission resources in which the first uplink transmission resource overlaps with the first sidelink transmission resource, or the first power class as used herein may be determined based on transmission resources in which the first uplink transmission resource overlaps with the first sidelink transmission resource and pre-configured information. For further details, see the description of Example 1 of Possible Embodiments 1 of Method 300.

[0119] S104: The first device determines the transmit power for the first uplink transmit and the transmit power for the first sidelink transmit based on the first set maximum output power.

[0120] 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.

[0121] According to the method described above, when the first uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, the first device determines the set maximum output power using the maximum power reduction corresponding to the concurrent mode. This mitigates the problem of the prior art, where the radio frequency index may not be met because the overlap is not taken into account, since the maximum power reduction of different transmit resources is used to determine the set maximum output power when resources overlap.

[0122] If the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the first device determines the set maximum output power using the maximum power reduction corresponding to concurrent mode, and determines the transmission power for the uplink transmission and the transmission power for the sidelink transmission based on the set maximum output power in concurrent mode. As a result, the transmission power in concurrent mode can satisfy spectral indicators corresponding to spurious emissions and spectrum emission masks, improving communication quality and success rate.

[0123] Book Disclosure In this embodiment, when the first uplink transmission resource overlaps with the first sidelink transmission resource, the first device determines an appropriate maximum output power setting in concurrent mode, thereby effectively improving communication quality and communication success rate.

[0124] Method 100 may optionally include the following steps:

[0125] In accordance with S103, if the first uplink transmission resource does not overlap with the first sidelink transmission resource in the time domain, the first device can determine the first set maximum output power in a different manner.

[0126] If the first uplink transmission resource does not overlap with the first sidelink transmission resource in the time domain, it should be understood that there can be multiple cases for the corresponding resource transmitted by the first device. For example, the first device may transmit only uplink transmission resources, or it may transmit only sidelink transmission resources.

[0127] Method 1: The first device determines a first set maximum output power based on a first maximum power reduction.

[0128] It should be understood that the first maximum power reduction in this specification is described in S103. In addition, how the first set maximum output power is determined based on the first maximum power reduction can also be described in S103.

[0129] Method 2: The first device determines a first set maximum output power based on a second maximum power reduction, the second maximum power reduction being determined based on a first uplink transmission resource, or the first device determines a first set maximum output power based on a third maximum power reduction, the third maximum power reduction being determined based on a first sidelink transmission resource.

[0130] It should be understood that the first uplink transmit resource not overlapping with the first sidelink transmit resource in the time domain can be interpreted as the first device performing either sidelink or uplink transmits only during a given period. In this case, when the maximum output power of the first device is determined, the transmit power corresponding to the currently transmitted transmit resource is determined. Before the transmit power corresponding to the currently transmitted transmit resource is determined, the upper and / or lower limits of the transmit power must be determined first.

[0131] For example, the following describes a method for determining the first set maximum output power using an example in which the first device performs only a first sidelink transmission. The first device calculates a lower limit of transmit power corresponding to the sidelink transmission resource based on a third maximum power reduction, i.e., uses that lower limit as the lower limit of the set maximum output power of the first device. Alternatively, the first device calculates a lower limit of transmit power corresponding to the sidelink transmission resource based on a third maximum power reduction and a third power class, i.e., uses that lower limit as the lower limit of the set maximum output power of the first device. The third power class in this specification may be determined based on the sidelink transmission resource, or it may be determined based on the sidelink transmission resource and pre-set information. Alternatively, the third maximum power reduction in this specification may be the first maximum power reduction. In other words, the first device calculates a lower limit of transmit power corresponding to the sidelink transmission resource based on a first maximum power reduction and a third power class, i.e., uses that lower limit as the lower limit of the set maximum output power of the first device. For example, the method for determining the first set maximum output power using an example in which the first device performs only sidelink transmission is the same as in the example described above. Details are not described again in this specification.

[0132] In this embodiment, when the uplink transmission resources do not overlap with the sidelink transmission resources, the first device determines the set maximum output power for each transmission using the maximum power reduction corresponding to each transmission in order to determine the transmission power for each transmission. This mitigates the problem of reduced communication quality and decreased communication success rate due to excessively large maximum power reductions in scenarios where the transmission resources do not overlap in the time domain.

[0133] In the above-described embodiment, since the first device flexibly determines an appropriate maximum output power setting when the first uplink transmission resource does not overlap with the first sidelink transmission resource, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0134] Method 100 may optionally include the following steps:

[0135] In accordance with S103, if the first uplink transmission resource does not overlap with the first sidelink transmission resource in the time domain, the first device can determine the first set maximum output power in a different manner.

[0136] Method 1: The first device determines a first set maximum output power based on a first maximum power reduction, and the first device determines the transmit power for the first uplink transmission or the transmit power for the first sidelink transmission based on the first set maximum output power, and the transmit power for the first uplink transmission or the transmit power for the first sidelink transmission does not exceed the first set maximum output power.

[0137] Method 2: The first device determines a second set maximum output power based on a second maximum power reduction, the second maximum power reduction being the maximum power reduction corresponding to the carrier on which the first uplink transmit resource is located, the first device determines the transmit power of the first uplink transmit based on the second set maximum output power, the transmit power of the first uplink transmit does not exceed the second set maximum output power, or the first device determines a third set maximum output power based on a third maximum power reduction, the third maximum power reduction being the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located, the first device determines the transmit power of the first sidelink transmit based on the third set maximum output power, the transmit power of the first sidelink transmit does not exceed the third set maximum output power.

[0138] The aforementioned solution does not determine the set maximum output power using maximum power reduction corresponding to concurrent mode in all situations where time-domain resources may overlap, mitigating the problem of degraded communication quality and reduced communication success rate due to excessively large maximum power reduction in non-concurrent scenarios.

[0139] If the uplink transmission resources do not overlap with the sidelink transmission resources, the first device determines the set maximum output power for each transmission using the maximum power reduction corresponding to each transmission in order to determine the transmission power for each transmission. This mitigates the problem of communication quality degrading and communication success rates decreasing due to excessively large maximum power reductions in scenarios where transmission resources do not overlap in the time domain.

[0140] In the above-described embodiment, since the first device flexibly determines an appropriate maximum output power setting when the first uplink transmission resource does not overlap with the first sidelink transmission resource, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0141] According to S103, if the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the set maximum output power is determined according to the method of S103, and when power is allocated separately for sidelink transmission and uplink transmission, the priority of sidelink transmission and uplink transmission may be taken into consideration.

[0142] Method 100 may optionally include the following steps:

[0143] In one example, the first device determines that the priority of the first uplink transmission is higher than the priority of the first sidelink transmission, the first device determines a second set maximum output power, which is the maximum output power of the first uplink transmission, and the first device determines a third set maximum output power based on the first and second set maximum output powers, which is the maximum output power of the first sidelink transmission.

[0144] In this example, since the first uplink transmit has a higher priority, during power allocation, it is preferentially guaranteed that the first uplink transmit can use the second set maximum output power determined based on the second maximum power reduction, and then the third set maximum output power is determined based on the power obtained by subtracting the second set maximum output power from the first set maximum output power.

[0145] Alternatively, in another example, the first device determines that the priority of the first sidelink transmission is higher than the priority of the first uplink transmission, the first device determines a third set maximum output power, which is the maximum output power of the first sidelink transmission, and the first device determines a second set maximum output power based on the first and third set maximum output powers, which is the maximum output power of the first uplink transmission.

[0146] In this example, since the first sidelink transmission has a higher priority, during power distribution, it is preferentially guaranteed that the first sidelink transmission can determine the third set maximum output power used by the first sidelink transmission based on the third maximum power reduction, and then the second set maximum output power is determined based on the power obtained by subtracting the third set maximum output power from the first set maximum output power.

[0147] According to S103, that is, if the first uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, the first uplink transmit resource may further overlap with at least one second sidelink transmit resource other than the first sidelink transmit resource, or the first sidelink transmit resource may further overlap with at least one second uplink transmit resource other than the first uplink transmit resource. In this case, the first device can determine the first set maximum output power based on the first maximum power reduction in the following manner. For example, at least one second sidelink transmit resource, at least one second uplink transmit resource, the first uplink transmit resource, and the first sidelink transmit resource are located in the same frequency band.

[0148] Book Disclosure In this embodiment, after an appropriate maximum output power setting is determined, power is allocated to different transmission resources based on the priority of the different transmission resources, so that communication quality can be further improved and the communication success rate can be guaranteed.

[0149] Based on S103 and S104, if the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, the set maximum output power is determined according to the method of S103, and when power is allocated separately for sidelink transmission and uplink transmission, the priority of sidelink transmission and uplink transmission may be taken into consideration.

[0150] Method 100 may optionally include the following steps:

[0151] In possible case 1, the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, and the priority of the first uplink transmission is higher than the priority of the first sidelink transmission.

[0152] The first device determines the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit based on the first set maximum output power. The first device determines the transmit power of a first uplink transmit, wherein the transmit power of the first uplink transmit is the smaller of the transmit power of the first uplink transmit and the first set maximum output power, and the transmit power of the first uplink transmit is determined based on a second maximum power reduction, where the second maximum power reduction is the maximum power reduction corresponding to the carrier on which the first uplink transmit resource is located. The first device determines the transmit power of the first sidelink transmit based on the first set maximum output power and the transmit power of the first uplink transmit. Includes.

[0153] In possible case 2, the first uplink transmission resource overlaps with the first sidelink transmission resource in the time domain, and the priority of the first sidelink transmission is higher than the priority of the first uplink transmission.

[0154] The first device determines the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit based on the first set maximum output power. The first device determines the transmit power of a first sidelink transmit, wherein the transmit power of the first sidelink transmit is the smaller of the transmit power of the first sidelink transmit and a first set maximum output power, and the transmit power of the first sidelink transmit is determined based on a third maximum power reduction, where the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located. The first device determines the transmit power of the first uplink transmit based on the first set maximum output power and the transmit power of the first sidelink transmit. Includes.

[0155] In the above-described embodiment, in order to further improve communication quality, the first device can take into account the priority of overlapping transmission resources and preferentially determine the transmission power for high-priority transmissions, thereby ensuring the success rate of high-priority transmissions.

[0156] Method 100 may optionally include the following steps:

[0157] In one example, the first device receives second instruction information from a network device, the second instruction information indicates at least one second uplink transmit resource, and the first device determines that the first sidelink transmit resource overlaps with at least one second uplink transmit resource. Referring to step S103, it should be understood that the first sidelink transmit resource overlaps with the first uplink transmit resource and at least one second uplink transmit resource, and that among the first sidelink transmit resource, the first uplink transmit resource, and at least one second uplink transmit resource, the first sidelink transmit resource is the longest in the time domain. For example, the uplink transmit resource and the sidelink transmit resource of the first device have different subcarrier spacings. As a result, the uplink transmit resource and the sidelink transmit resource have different slot lengths or different orthogonal frequency division multiplexing (OFDM) symbol lengths in the time domain. For example, if the subcarrier spacing is 15 kHz, the length of the OFDM symbol excluding the CP is 66.67 μs, or if the subcarrier spacing is 60 kHz, the length of the OFDM symbol excluding the CP is 16.67 μs. In this specification, the first sidelink transmit resource being the longest in the time domain can be understood as the sidelink transmit resource occupying the longest slot or the longest OFDM symbol in the time domain.

[0158] In the aforementioned case, the first device determining a first set maximum output power based on a first maximum power reduction may specifically include the following steps:

[0159] Step 1: The first device determines at least one fourth set maximum output power based on at least one fourth maximum power reduction.

[0160] The fourth configurable maximum output power is the maximum output power of the first sidelink transmit and the second uplink transmit, or the fourth configurable maximum output power is the combined maximum output power of the first sidelink transmit and the second uplink transmit. The sum of the transmit power of the first sidelink transmit and the transmit power of the second uplink transmit does not exceed the fourth configurable maximum output power. The fourth maximum power reduction is determined based on the resources that the first sidelink transmit resources overlap with the second uplink transmit resources.

[0161] For example, the first device can separately determine the upper and lower limits of the maximum power output of the first sidelink transmit and the maximum power output of each of the second uplink transmits. The lower limit for determining each maximum power output is determined based on each of the fourth maximum power reductions.

[0162] Step 2: The first device determines a fifth set maximum output power based on the first maximum power reduction, where the fifth set maximum output power is the maximum output power for the first sidelink transmit and the first uplink transmit.

[0163] For example, the first maximum power reduction is determined based on the transmission resources where the first uplink transmission resource overlaps with the first sidelink transmission resource. The first device separately determines the upper and lower limits of the maximum output power for the first sidelink transmission and the first uplink transmission. The lower limit for determining each maximum output power is determined based on the respective first maximum power reduction.

[0164] Referring to steps 1 and 2, the first device obtains transmit power corresponding to resources in which the first uplink transmit resource overlaps with the first sidelink transmit resource, and transmit power corresponding to resources in which the first uplink transmit resource overlaps with at least one second sidelink transmit resource.

[0165] Step 3: The first device determines the first set maximum output power based on at least one fourth set maximum output power and a fifth set maximum output power.

[0166] For example, the first device determines an upper and lower limit for the first set maximum output power based on at least one fourth set maximum output power and a fifth set maximum output power in order to determine the first set maximum output power. For example, the first device may use the largest value among at least one fourth set maximum output power and a fifth set maximum output power as the upper limit for the first set maximum output power, and use the smallest value among at least one fourth set maximum output power and a fifth set maximum output power as the lower limit for the first set maximum output power.

[0167] For example, the first device determines the upper and lower limits of the first configurable maximum output power based on at least one upper and lower limit of a fourth configurable maximum output power, as well as the upper and lower limits of a fifth configurable maximum output power, in order to determine the first configurable maximum output power. For example, the first device may use the largest value among at least one upper limit of the fourth and fifth configurable maximum output power as the upper limit of the first configurable maximum output power, and use the smallest value among at least one lower limit of the fourth and fifth configurable maximum output power as the lower limit of the first configurable maximum output power.

[0168] For further details, please refer to the explanations in S401b to S403b of Method 400.

[0169] In another example, the first device receives second instruction information from a network device, the second instruction information indicates at least one second sidelink transmit resource, and the first device determines that the first uplink transmit resource overlaps with at least one second sidelink transmit resource. Referring to step S103, it should be understood that the first uplink transmit resource overlaps with the first sidelink transmit resource and at least one second sidelink transmit resource, and that among the first uplink transmit resource, the first sidelink transmit resource, and at least one second sidelink transmit resource, the first uplink transmit resource may be the longest in the time domain. For example, the sidelink transmit resource and the uplink transmit resource of the first device have different subcarrier spacings. As a result, the sidelink transmit resource and the uplink transmit resource have different slot lengths or different orthogonal frequency division multiplexing (OFDM) symbol lengths in the time domain. For example, if the subcarrier spacing is 15 kHz, the length of the OFDM symbol excluding the CP is 66.67 μs, or if the subcarrier spacing is 60 kHz, the length of the OFDM symbol excluding the CP is 16.67 μs. In this specification, the first uplink transmit resource being the longest in the time domain can be understood as the uplink transmit resource occupying the longest slot or the longest OFDM symbol in the time domain.

[0170] In the aforementioned case, the first device determining a first set maximum output power based on a first maximum power reduction may specifically include the following steps:

[0171] Step 1: The first device determines at least one fourth set maximum output power based on at least one fourth maximum power reduction.

[0172] The fourth configurable maximum output power is the maximum output power corresponding to the first uplink transmit and the second sidelink transmit, and the fourth maximum power reduction is determined based on the resources where the first uplink transmit resource overlaps with the second sidelink transmit resource.

[0173] It should be understood that the first device separately determines the upper and lower limits of the maximum output power corresponding to the first uplink transmit resource and each of the second sidelink transmit resources. The lower limit for determining each maximum output power is determined based on each of the fourth maximum power reductions.

[0174] Step 2: The first device determines a fifth set maximum output power based on the first maximum power reduction, the fifth set maximum output power being the maximum output power corresponding to the first uplink transmit resource and the first sidelink transmit resource.

[0175] It should be understood that the first maximum power reduction is determined based on the transmission resources where the first sidelink transmission resource overlaps with the first uplink transmission resource. The first device separately determines the upper and lower limits of the maximum output power corresponding to the first uplink transmission resource and the first sidelink transmission resource. The lower limit for determining each maximum output power is determined based on the respective first maximum power reduction.

[0176] Referring to steps 1 and 2, the first device obtains transmit power corresponding to the resources, which is located on the first sidelink transmit resource and at least one second sidelink transmit resource, and which overlaps with the first uplink transmit resource.

[0177] Step 3: The first device determines the first set maximum output power based on at least one fourth set maximum output power and a fifth set maximum output power.

[0178] For example, the first device determines an upper and lower limit for the first set maximum output power based on at least one fourth set maximum output power and a fifth set maximum output power in order to determine the first set maximum output power. For example, the first device may use the largest value among at least one fourth set maximum output power and a fifth set maximum output power as the upper limit for the first set maximum output power, and use the smallest value among at least one fourth set maximum output power and a fifth set maximum output power as the lower limit for the first set maximum output power.

[0179] For example, the first device determines the upper and lower limits of the first configurable maximum output power based on at least one upper and lower limit of a fourth configurable maximum output power, as well as the upper and lower limits of a fifth configurable maximum output power, in order to determine the first configurable maximum output power. For example, the first device may use the largest value among at least one upper limit of the fourth and fifth configurable maximum output power as the upper limit of the first configurable maximum output power, and use the smallest value among at least one lower limit of the fourth and fifth configurable maximum output power as the lower limit of the first configurable maximum output power.

[0180] For further details, please refer to the explanations in S401a to S403a of Method 400.

[0181] Book Disclosure In this embodiment, when one uplink transmit resource overlaps with multiple sidelink transmit resources, or when one sidelink transmit resource overlaps with multiple uplink transmit resources, the range of the set maximum output power of the first device is determined, and the set maximum output power is determined separately based on the two overlapping resources in order to determine the set maximum output power of the first device. Disclosure The scope of application for the power increase method will be further expanded, resulting in a more flexible method for determining the maximum output power setting, further improving communication quality, and further improving the communication success rate.

[0182] In another example, the first device receives a second instruction from a network device, the second instruction instructs a second uplink transmit resource, and if the second uplink transmit resource overlaps with the first sidelink transmit resource in the time domain, the first device determines a fourth configurable maximum output power based on a fourth maximum power reduction, the fourth maximum power reduction being the maximum power reduction corresponding to concurrent mode, the fourth maximum power reduction being determined based on the second uplink transmit resource and the first sidelink transmit resource, and if the fourth configurable maximum output power is greater than the first configurable maximum output power, the first device determines the transmit power of the second uplink transmit based on the first configurable maximum output power, 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 configurable maximum output power, and the second uplink transmit is carried by the second uplink transmit resource.

[0183] If one sidelink transmit resource overlaps with multiple uplink transmit resources, multiple configurable maximum output power values ​​are determined based on the maximum power reduction determined based on the sidelink transmit resource and each uplink transmit resource, and the minimum value of these multiple configurable maximum output power values ​​is determined as the configurable maximum output power of the first device.

[0184] In the embodiments described above, when one sidelink transmission resource overlaps with multiple uplink transmission resources, it can be guaranteed that the spectral index of spurious emissions meets the requirements in multiple time-domain resources where the sidelink transmission resource overlaps with multiple uplink transmission resources, and communication quality can be further improved.

[0185] In another example, the first device determines at least one second sidelink transmit resource, and if the second sidelink transmit resource overlaps with the first uplink transmit resource in the time domain, the first device determines a fifth configurable maximum output power based on a fifth maximum power reduction, the fifth maximum power reduction being the maximum power reduction corresponding to concurrent mode, and the fifth maximum power reduction being determined based on the second sidelink transmit resource and the first uplink transmit resource, and if the fifth configurable maximum output power is greater than the first configurable maximum output power, the first device determines the transmit power of the second sidelink transmit based on the first configurable maximum output power, and if the sum of the transmit power of the second sidelink transmit and the transmit power of the first uplink transmit does not exceed the first configurable maximum output power, the second sidelink transmit is carried by the second sidelink transmit resource.

[0186] If one uplink transmission resource overlaps with multiple sidelink transmission resources, it should be understood that multiple configurable maximum output power values ​​are determined based on the maximum power reduction determined based on the uplink transmission resource and each sidelink transmission resource, and the minimum value of the multiple configurable maximum output power values ​​is determined as the configurable maximum output power of the first device.

[0187] In the embodiments described above, when one uplink transmission resource overlaps with multiple sidelink transmission resources, it can be guaranteed that the spectral index of spurious emissions meets the requirements in multiple time-domain resources where the uplink transmission resource overlaps with multiple sidelink transmission resources, and communication quality can be further improved.

[0188] In the following sections, please refer to Figure 4. Disclosure This explains the communication method 200 provided.

[0189] S201: The first device receives first instruction information from the network device, and accordingly, the network device transmits first instruction information to the first device, and the first instruction information directs to the first uplink transmission resource.

[0190] For example, the first instruction information in this specification may be downlink control information or semi-persistent scheduling instruction information. For example, the first device may be a terminal device, which receives the first instruction information through a Uu air interface. The terminal device is in a radio resource control (RRC) connection state.

[0191] S202: The first device receives second instruction information from the network device, and accordingly, the network device transmits second instruction information to the first device, and the second instruction information directs to the second uplink transmission resource.

[0192] S203: The first device determines whether the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain.

[0193] S204: If the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain, the first device determines a first set maximum output power based on the first maximum power reduction.

[0194] It should be understood that the first configurable maximum output power as used herein is the maximum output power used by the first device to perform the first uplink transmission and the second uplink transmission. In other words, if the first uplink transmission resource overlaps with the second uplink transmission resource in the time domain, the sum of the configurable transmission power allocated by the terminal device to the first uplink transmission resource and the second uplink transmission resource is the first configurable maximum output power.

[0195] It should be further understood that the first maximum power reduction as used herein corresponds to the maximum power reduction for concurrent mode. For example, the first device pre-configures a plurality of first mapping relationships or a plurality of first correspondences. The plurality of mapping relationships or first correspondences may be mapping relationships between the first maximum power reduction and the resource settings of the overlapping transmission resources described above. The resource settings as used herein may be one or more of the following parameters: resource block (RB) allocation location, continuous RB allocation length, modulation scheme, etc. The first device can determine the first maximum power reduction based on the plurality of first mapping relationships or a plurality of first correspondences.

[0196] When the first device determines a first set maximum output power based on a first maximum power reduction, the first device first determines upper and lower limits of the first set maximum output power, and then determines the first set maximum output power based on the upper and lower limits. In one example, the first device determines the lower limit based on the first maximum power reduction. In another example, the first device determines the lower limit based on the first maximum power reduction and a first power class, and the first device determines the lower limit based on the first power class. Alternatively, the first power class as used herein may be determined based on transmission resources in which the first uplink transmission resource overlaps with the second uplink transmission resource, or the first power class as used herein may be determined based on transmission resources in which the first uplink transmission resource overlaps with the second uplink transmission resource and pre-configured information.

[0197] In the method described above, the first device determines whether the first uplink transmit resource overlaps with the second uplink transmit resource in the time domain, and further determines an appropriate set maximum output power based on the overlap between the first and second uplink transmit resources in the time domain. If the resources overlap in the time domain, the set maximum output power is determined using the maximum power reduction corresponding to the concurrent mode. This mitigates the problem of the prior art, where the radio frequency index may not be met because the overlap is not taken into account, since the maximum power reductions of different transmit resources are used to determine the set maximum output power when the resources overlap.

[0198] In the aforementioned solution, the appropriate maximum output power setting is flexibly determined based on resource overlap, thereby effectively improving the communication quality of the first device and effectively improving the communication success rate.

[0199] Method 200 may optionally further include the following steps:

[0200] In accordance with S203, if the first uplink transmission resource does not overlap with the second uplink transmission resource in the time domain, the first device can determine the first set maximum output power in a different manner.

[0201] Please understand that if the first uplink transmission resource does not overlap with the second uplink transmission resource in the time domain, the first device may perform only the first uplink transmission, or only the second uplink transmission, or the first device may perform both the first and second uplink transmissions.

[0202] Method 1: The first device determines a first set maximum output power based on a first maximum power reduction.

[0203] It should be understood that the first maximum power reduction in this specification is described in S203. In addition, how the first set maximum output power is determined based on the first maximum power reduction can also be described in S203.

[0204] Method 2: The first device determines a first set maximum output power based on a second maximum power reduction, the second maximum power reduction being determined based on a first uplink transmission resource, or the first device determines a first set maximum output power based on a third maximum power reduction, the third maximum power reduction being determined based on a second uplink transmission resource.

[0205] It should be understood that the first uplink transmission resource not overlapping with the second uplink transmission resource in the time domain can be understood as the first device performing the second uplink transmission or only uplink transmissions during a particular period. In this case, when the set maximum output power of the first device is determined, the transmit power corresponding to the currently transmitted transmission is determined. The upper and / or lower limits of the transmit power must be determined before the transmit power corresponding to the currently transmitted transmission resource is determined. For example, the following describes how to determine the first set maximum output power using an example where the first device performs only the first uplink transmission. The first device calculates the lower limit of the transmit power corresponding to the second uplink transmission resource based on the second maximum power reduction, i.e., uses that lower limit as the lower limit of the set maximum output power of the first device. Alternatively, the first device calculates the lower limit of the transmit power corresponding to the second uplink transmission resource based on the second maximum power reduction and the second power class, i.e., uses that lower limit as the lower limit of the set maximum output power of the first device. The second power class as used herein may be determined based on the second uplink transmission resource, or based on the second uplink transmission resource and pre-configured information. Alternatively, the second maximum power reduction as used herein may be the first maximum power reduction. In other words, the first device calculates a lower limit of the transmission power corresponding to the second uplink transmission resource based on the first maximum power reduction and the second power class, i.e., uses that lower limit as the lower limit of the set maximum output power of the first device. For example, the method of determining the first set maximum output power using an example in which the first device performs only second uplink transmission is the same as in the example described above. Further details are not described again herein.

[0206] Book DisclosureIn this embodiment, the maximum output power is not determined using the maximum power reduction corresponding to concurrent mode in all situations where time-domain resources may overlap, thereby mitigating the problem of degraded communication quality and reduced communication success rate due to excessively large maximum power reduction in scenarios where time-domain resources do not overlap. Disclosure In this embodiment, since the appropriate maximum output power setting is flexibly determined based on resource overlap, the communication quality of the first device can be effectively improved, and the communication success rate can be effectively improved.

[0207] It should be noted that the aforementioned method, in which the first device determines the maximum output power based on the overlap or non-overlap of the first uplink transmit resource and the second uplink transmit resource, may be further used in carrier aggregation scenarios. In other words, both the first and second uplink transmit resources are determined by the network device's instruction information.

[0208] See Figure 5 below. Disclosure The communication method 300 of this embodiment will be described in detail. Figure 5 shows this Disclosure This is an outline flowchart of Method 300.

[0209] It should be understood that there is a half-duplex problem when the UE communicates through the sidelink. Specifically, the UE cannot simultaneously transmit and receive data on the sidelink. NR V2X has two operating modes on the sidelink, namely mode 1 and mode 2. Mode 1 is the base station scheduling mode. Mode 2 is for the UE to select resources based on the channel monitoring results. In other words, the SL resources are preset. In addition, the Uu air interface communication between the UE and the network device can be in the radio resource control (RRC) IDLE state, INACTIVE state, and CONNECTED state.

[0210] For different cases where the UE performs uplink transmission and sidelink transmission, some specific embodiments of method 300 are separately described.

[0211] In sidelink transmission resource setting case 1, the UE uses mode 2 on the sidelink. In other words, the SL resources are preset.

[0212] In possible embodiment 1, the UE determines that the Uu air interface communication is in the connected state, and the UE performs SL transmission in the SL default resource pool.

[0213] Possible embodiment 1 is specifically implemented using several possible cases as follows.

[0214] In possible case 1, there may be different specific embodiments based on whether the uplink transmission resources overlap with the sidelink transmission resources in the time domain.

[0215] Example 1: The UE determines that the uplink transmission resources overlap with the sidelink transmission resources in the time domain.

[0216] S301:UE determines whether to perform uplink transmission and / or sidelink transmission.

[0217] The UE decides to perform sidelink and uplink transmissions.

[0218] Furthermore, the UE determines that the uplink transmission resource overlaps with the sidelink transmission resource in the time domain.

[0219] The following is an example of how a UE determines that an uplink transmission resource overlaps with a sidelink transmission resource in the time domain. The UE obtains the control information for the sidelink transmission resource before obtaining the control information for the uplink transmission resource. In other words, based on the control information for both the uplink and sidelink transmission resources, the UE can determine that an uplink transmission resource overlaps with a sidelink transmission resource in the time domain.

[0220] S302:UE determines the maximum output power to be set based on the decision result.

[0221] Because the uplink transmission resource overlaps with the sidelink transmission resource in the time domain, Disclosure In this embodiment, when the lower limit of the set maximum output power is calculated, it can be assumed that the set maximum output power is calculated using the combined maximum power reduction of the uplink transmit resource and the sidelink transmit resource.

[0222] Specifically, when calculating the set maximum output power, the UE first calculates the upper and lower limits of the set maximum output power. The UE calculates the lower limit based on the maximum power reduction. In this specification, the maximum power reduction is MAX(MPR). con-current A-MPR con-current ) or MPR con-current It is possible. MPR con-current and A-MPR con-currentThis can be determined by the UE based on the network resource configuration. The maximum power reduction is determined in a different manner than the maximum power reduction used when the UE transmits on SL single carrier and the maximum power reduction used when the UE transmits on Uu single carrier.

[0223] Below, specific embodiments for determining the maximum output power to be set will be described separately, based on the case where the subcarrier spacing between the uplink and sidelink transmission resources is the same, and the case where the subcarrier spacing between the uplink and sidelink transmission resources is different.

[0224] If the subcarrier spacing is the same, P CMAX_L ≤P CMAX ≤P CMAX_H , P CMAX_L =MIN{10log 10 Σp EMAX,c -ΔT C ,P PowerClass,con-current -MAX(MAX(MPR con-current A-MPR con-current )+ΔT IB,c +ΔT C ,P-MPR)}, and P CMAX_H =MIN{10log 10 Σp EMAX,c ,P PowerClass,con-current}

[0225] In this specification, p EMAX,c P EMAX,c P is a linear value given by IE P-Max of the serving cell c or IE slmaxTxPower of SL. PowerClass,con-current This is the maximum UE power corresponding to the power class when Uu and SL are operating simultaneously, and may be pre-set. ΔT IB,c This is the allowable maximum set output power relaxation. For details, see the regulations in Section 6.2.4 of 3GPP TS 38.101-1. P-MPR is the maximum reduction used by the UE for power management. ΔT C,cis the transmit power relaxation at the edge of the allowed operating band of serving cell c. ΔT C is the ΔT of all serving cells c C,c and is the maximum value thereof.

[0226] When the subcarrier spacing is different, P CMAX,c(i),i (p) is the configured maximum output power corresponding to slot p of serving cell c(i) using subcarrier spacing type i, where subcarrier spacing type i can be 15 kHz, 30 kHz, or 60 kHz.

[0227] P CMAX,c(i),i (p) shall satisfy the following constraints: P CMAX_L,f,c(i),i (p) ≤ P CMAX,f,c(i),i (p) ≤ P CMAX_H,f,c(i),i (p).

[0228] P CMAX_L,f,c(i),i (p) and P CMAX_H,f,c(i),i (p), for details, refer to Section 6.2E or Section 6.2.4 of GPP TS 38.101-1.

[0229] The total available configured maximum power P CMAX (p,q) corresponding to temporally overlapping slots p and q shall satisfy the following constraints: P CMAX_L (p,q) ≤ P CMAX (p,q) ≤ P CMAX_H (p,q)

[0230] When slots p and q have different transmission lengths and belong to different cells in the same frequency band, P CMAX_L (p,q) = MIN{10log 10 [p CMAX_L,f,c(i),Uu,i (p) + p CMAX_L,f,c(i),V2X,j (q)], P PowerClass,con-current}, and P CMAX_H (p,q) = MIN{10log 10 [p CMAX_H,f,c(i),Uu、i (p) + p CMAX_H,f,c(i),V2X,j (q)], P PowerClass,con-current}.

[0231] In this specification, p CMAX_L,f,c(i),i and p CMAX_H,f,c(i),i P CMAX_L,f,c(i),i and P CMAX_H,f,c(i),i These are the corresponding linear values. P PowerClass,con-current This is the maximum UE power corresponding to the power class when Uu and SL are operating simultaneously, and may be pre-configured.

[0232] Example 2: The UE determines that the uplink transmit resource does not overlap with the sidelink transmit resource in the time domain.

[0233] S301:UE determines whether to perform uplink transmission and / or sidelink transmission.

[0234] The UE decides to perform sidelink and uplink transmissions.

[0235] Furthermore, the UE determines that the uplink transmission resource does not overlap with the sidelink transmission resource in the time domain.

[0236] S302:UE determines the maximum output power to be set based on the decision result.

[0237] Specifically, based on the transmissions sent by the UE in each part of the time domain, the UE determines the corresponding transmission power as the configured maximum output power of the UE based on the corresponding transmission resources. For example, if the UE only performs uplink transmission in a specific period or specific time domain resources, the UE determines the lower limit of the transmission power corresponding to the uplink transmission resources based on the second maximum power reduction corresponding to the uplink transmission resources in order to determine the transmission power corresponding to the uplink transmission resources as the configured maximum output power of the UE, and then determines the upper limit of the transmission power corresponding to the uplink transmission resources. Similarly, if the UE only performs sidelink transmission, the UE determines the lower limit of the transmission power corresponding to the sidelink transmission resources based on the second maximum power reduction corresponding to the sidelink transmission resources in order to determine the transmission power corresponding to the sidelink transmission resources as the configured maximum output power of the UE, and then determines the lower limit of the transmission power corresponding to the sidelink transmission resources.

[0238] For example, if the UE only performs sidelink transmission, the configured maximum output power of the UE is the transmission power corresponding to the sidelink transmission resources.

[0239] P CMAX_L,c,SL ≦P CMAX,c,SL ≦P CMAX_H,c,SL is satisfied.

[0240] In this specification, P CMAX_L,c,SL =MIN{P EMAX,c -ΔT C,c ,P PowerClass -MAX(MAX(MPR c ,A-MPR c )+ΔT IB,c +ΔT C,c ,P-MPR c ,P Regulatory,c}) holds. ​​​​​​​​​​​​​​In some scenarios, the upper limit P CMAX_H,c,SL is determined by the minimum value among the cell-level power P EMAX,c set on the network, the transmission power class P PowerClass reported by the UE, and the regulatory limit P Regulatory . The lower limit P CMAX_L,c,SL is mainly determined by the transmission power class P PowerClass reported by the UE, the maximum power reduction MPR c and A-MPR c . Generally, only the maximum power reduction MPR c may be considered in this specification. In other words, the UE determines the lower limit based on MAX(MPR c , A-MPR c ) corresponding to sidelink transmission. MAX(MPR c , A-MPR c ) in this specification may be MPR c or may be replaced.

[0243] For example, for the value of MPR c , please refer to Table 1. Table 1 shows the MPR when the power class is 3. QAM is quadrature amplitude modulation, and QPSK is quadrature phase shift keying. CP-OFDM is cyclic prefix orthogonal frequency division multiplexing.

[0244]

Table 1

[0245] For example, when the UE only performs uplink transmission, the set maximum output power of the UE is the transmission power corresponding to the uplink transmission resource.

[0246] P CMAX_L,c,Uu ≦P CMAX,c,Uu ≦P CMAX_H,c,Uu is satisfied.

[0247] In this specification, P CMAX_L,c,Uu = MIN{P EMAX,c - ΔT C,c , (PPowerClass -ΔP PowerClass )-MAX(MAX(MPR c +ΔMPR c A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS P-MPR c )}.

[0248] P CMAX_H,c,Uu =MIN{P EMAX,c ,P PowerClass -ΔP PowerClass}

[0249] Upper limit P CMAX_H,c,Uu This refers to the cell-level power P set on the network. EMAX,c and the transmit power class P reported by the UE PowerClass It is determined by the smaller of the two values. Lower bound P CMAX_H,c,Uu This is the transmit power class P reported by the UE. PowerClass And, Maximum Power Reduction (MPR) c and A-MPR c It is primarily determined by the following. Generally, in this specification, the maximum power reduction MPR is used. c Only this may be considered. In other words, the UE corresponds to MAX(MPR) for uplink transmission. c +ΔMPR c A-MPR c The lower limit is determined based on ). MAX(MPR) in this specification. c +ΔMPR c A-MPR c ) is MPR c It can be replaced with this.

[0250] For example, MPR c See Table 2 for the values. Table 2 shows the MPR when power class is 2. QAM is quadrature amplitude modulation, and QPSK is quadrature phase shift keying. CP-OFDM is cyclic prefix quadrature frequency division multiplexing.

[0251] [Table 2]

[0252] Book Disclosure In this embodiment, when the UE performs uplink and sidelink transmissions, it is determined whether the uplink transmission resources overlap with the sidelink transmission resources in the time domain, and an appropriate set maximum power is further determined based on the overlap between the uplink and sidelink transmission resources in the time domain. If the resources overlap in the time domain, the set maximum power is determined using the maximum power reduction corresponding to concurrent mode. This mitigates the problem of prior art, where the radio frequency index may not be met because the overlap is not considered, since the maximum power reductions of different transmission resources are used to calculate the set maximum power when resources overlap. In addition, it mitigates the problem that the set maximum power is not determined using the maximum power reduction corresponding to concurrent mode in all situations where concurrent operation is possible, resulting in degraded communication quality and reduced communication success rates due to excessively large maximum power reductions in non-concurrent scenarios. Disclosure In this embodiment, since the appropriate maximum output power setting is flexibly determined based on resource overlap, the communication quality of the terminal device can be effectively improved, and the communication success rate can be effectively improved.

[0253] Example 3: Based on Example 1, the UE further determines the allocation of the configured maximum output power to the sidelink transmit resources and uplink transmit resources based on the priority of sidelink transmit and uplink transmit.

[0254] Specifically, the UE determines the set maximum output power according to the embodiment of Example 1. For example, the priority of sidelink transmission is higher than the priority of uplink transmission. The UE first calculates the transmit power for sidelink transmission based on the maximum power reduction corresponding to sidelink transmission, and can use the power other than the transmit power for sidelink transmission within the set maximum output power for uplink transmission. The lower limit of the transmit power allocated to sidelink transmission by the UE may be calculated based on the maximum power reduction corresponding to sidelink transmission. For the calculation of the transmit power for sidelink transmission, see the calculation method in Example 2.

[0255] Alternatively, specifically, the UE determines the set maximum output power according to the embodiment of Example 1. For example, the priority of uplink transmission is higher than the priority of sidelink transmission. The UE first calculates the transmit power for the uplink transmission based on the maximum power reduction corresponding to the uplink transmission, and can use the power other than the transmit power for the uplink transmission within the set maximum output power for sidelink transmission. The lower limit of the transmit power allocated to the uplink transmission by the UE may be calculated based on the maximum power reduction corresponding to the uplink transmission. For the calculation of the transmit power for the uplink transmission, see the calculation method in Example 2.

[0256] Book Disclosure In this embodiment, after an appropriate maximum output power setting is determined, power is allocated to different transmission resources based on the priority of the different transmission resources, so that communication quality can be further improved and the communication success rate can be guaranteed.

[0257] In possible case 2, the UE does not determine, or is unable to determine, whether the uplink transmit resource overlaps with the sidelink transmit resource in the time domain.

[0258] Example 4: S301: UE decides whether to perform uplink transmission and / or sidelink transmission.

[0259] The UE decides to perform sidelink and uplink transmissions.

[0260] S302:UE determines the maximum output power to be set based on the decision result.

[0261] In S301, the UE performs both sidelink and uplink transmissions. In other words, uplink transmission resources may overlap with sidelink transmission resources in the time domain. Therefore, Disclosure In this embodiment, the maximum power reduction used to calculate the lower limit of the set maximum output power is MAX(MPR). con-current A-MPR con-current ) or MPR con-current This is possible. For details on the specific decision-making process, please refer to S302 of Example 1 in Possible Case 1.

[0262] For example, books Disclosure For UEs that perform sidelink and uplink transmissions, the overlapping resources for sidelink transmission, uplink transmission, and transmission resources correspond to three different tables, respectively. These tables can show the mapping relationship between maximum power reduction and resource configuration on the network.

[0263] It should be understood that when sidelink and uplink transmissions are being transmitted, sidelink transmission resources may overlap with uplink transmission resources. Therefore, the set maximum output power is determined using the maximum power reduction corresponding to concurrent mode. This mitigates the problem of prior art, where the radio frequency index may not be met because the overlap is not taken into account, since the maximum power reductions of different transmission resources are used to calculate the set maximum output power when resources overlap.

[0264] Book DisclosureIn this embodiment, the appropriate maximum output power can be flexibly determined, the communication quality of the terminal device can be effectively improved, and the communication success rate can be effectively improved.

[0265] In possible embodiment 2, the UE determines that the Uu air interface communication is idle, and the UE performs an SL transmission on the SL default resource pool.

[0266] S301:UE determines whether to perform uplink transmission and / or sidelink transmission.

[0267] The UE determines that only sidelink transmissions will be sent.

[0268] S302:UE determines the maximum output power to be set based on the decision result.

[0269] The UE first determines the upper and lower limits of the set maximum output power, with the lower limit being the MAX(MPR) corresponding to sidelink transmission. c A-MPR c Determined based on MAX(MPR) in this specification. c A-MPR c ) is MPR c It may be replaced by, or alternatively.

[0270] P CMAX_L,c,SL ≤P CMAX,c,SL ≤P CMAX_H,c,SL That is the case.

[0271] In this specification, P CMAX_L,c,SL =MIN{P EMAX,c -ΔT C,c ,P PowerClass -MAX(MAX(MPR c A-MPR c )+ΔT IB,c +ΔT C,c P-MPR c ),P Regulatory,c}

[0272] PCMAX_H,c,SL =MIN{P EMAX,c ,P PowerClass ,P Regulatory}

[0273] In some scenarios, upper limit P CMAX_H,c,SL This refers to the cell-level power P set on the network. EMAX,c , Transmit power class P reported by UE PowerClass , and regulatory restrictions P Regulatory The lower bound P is determined by the smallest value within that range. CMAX_H,c,SL This is the transmit power class P reported by the UE. PowerClass And, Maximum Power Reduction (MPR) c and A-MPR c This is primarily determined by the maximum power reduction (MPR). Generally, in this specification, the maximum power reduction (MPR) is used. c Only this may be considered. In other words, the UE will use MAX(MPR) for sidelink transmission. c A-MPR c The lower limit is determined based on ). MAX(MPR) in this specification. c A-MPR c ) is MPR c It may be replaced by, or alternatively.

[0274] For example, MPR c Please refer to Table 1 for the values. Table 1 shows the MPR when power class is 3. QAM is quadrature amplitude modulation, and QPSK is quadrature phase shift keying. CP-OFDM is cyclic prefix quadrature frequency division multiplexing.

[0275] In possible embodiment 3, the UE determines that the Uu air interface communication is in an inactive state.

[0276] Possible embodiment 3 can be divided into two possible cases based on whether the UE supports PUSCH transmission.

[0277] In possible case 1, the UE does not support push transmission. For example, the UE does not support small data transmission (SDT).

[0278] S301:UE determines whether to perform uplink transmission and / or sidelink transmission.

[0279] The UE determines that only sidelink transmissions will be sent.

[0280] S302:UE determines the maximum output power to be set based on the decision result.

[0281] For further details, please refer to S302 of Possible Embodiment 2.

[0282] In possible case 2, the UE supports push transmission. For example, the UE supports small data transmission (SDT).

[0283] S301:UE determines whether to perform uplink transmission and / or sidelink transmission.

[0284] The UE determines that uplink and sidelink transmissions may be transmitted.

[0285] S302:UE determines the maximum output power to be set based on the decision result.

[0286] Example 5: The UE can determine that the uplink transmit resource overlaps with the sidelink transmit resource in the time domain.

[0287] For further details, please refer to Example 1 of Possible Embodiment 1, Possible Case 1.

[0288] Example 6: The UE can determine that the uplink transmit resource does not overlap with the sidelink transmit resource in the time domain.

[0289] For further details, please refer to Example 2 of Possible Case 1 of Possible Embodiment 1.

[0290] Example 7: The UE does not determine, or cannot determine, whether the uplink transmit resource overlaps with the sidelink transmit resource in the time domain.

[0291] For further details, please refer to Possible Case 2 of Possible Embodiment 1.

[0292] In sidelink transmission resource configuration case 2, the UE uses mode 1 for the sidelink. In other words, the SL resource is configured by the network device.

[0293] In this case, please understand that the UE's RRC is in a connected state. For specific embodiments, please refer to Possible Embodiment 1 of Sidelink Transmit Resource Configuration Case 1.

[0294] Book Disclosure In this embodiment, the maximum output power of the UE is flexibly determined based on whether the UE performs uplink and / or sidelink transmissions, and further, when the UE performs both uplink and sidelink transmissions, the maximum output power of the UE is flexibly determined based on whether the uplink transmission overlaps with the sidelink transmission in the time domain. In this way, the communication quality of the terminal device can be effectively improved, and the communication success rate can be effectively improved.

[0295] In the following sections, please refer to Figure 6. Disclosure This explains the power determination method 400 provided.

[0296] It should be understood that when sidelink and uplink transmission resources correspond to different subcarrier intervals, and the UE determines whether an uplink transmission resource overlaps with a sidelink transmission resource, one uplink transmission resource may overlap with multiple sidelink transmission resources, or one sidelink transmission resource may overlap with multiple uplink transmission resources. This will be explained separately below with reference to Figures 6(a) and (b).

[0297] As shown in Figure 6(a), in S401a, the UE determines that the uplink transmit resource overlaps with multiple sidelink transmit resources.

[0298] The following is an example of how a UE determines that an uplink transmission resource overlaps with multiple sidelink transmission resources in the time domain. Before obtaining control information for the uplink transmission resource, the UE obtains control information for multiple sidelink transmission resources. In other words, based on the control information for the uplink transmission resource and the control information for multiple sidelink transmission resources, the UE can determine that an uplink transmission resource overlaps with multiple sidelink transmission resources in the time domain.

[0299] S402a:UE separately determines the maximum configurable output power corresponding to the uplink transmit resource and the multiple sidelink transmit resources.

[0300] For the uplink transmit resource and each sidelink transmit resource, the UE can separately determine multiple configurable maximum output powers according to the method described in Example 1 of Possible Case 1 of Possible Embodiment 1 of Method 300.

[0301] Please understand that, when comparing an uplink transmission resource with multiple sidelink transmission resources, the uplink transmission resource has the longest length, and the multiple sidelink transmission resources overlap with the uplink transmission resource separately in different time domains.

[0302] S403a:UE determines the configurable maximum power based on the configurable maximum power corresponding to the uplink transmit resource and multiple sidelink transmit resources.

[0303] Next, the upper limit P of the UE's set maximum output power is determined based on multiple set maximum output powers. CMAX_H and lower limit P CMAX_L This is determined, and as a result, the range of the set maximum output power can be determined. For example, P CMAX_H This can be the largest value among multiple maximum output power settings, P CMAX_L This can be the smallest value among multiple maximum output power settings. CMAX_L ≤P CMAX ≤P CMAX_H That is the case.

[0304] As shown in Figure 6(b), in S401b, the UE determines that the sidelink transmit resource overlaps with multiple uplink transmit resources.

[0305] S402b:UE separately determines the maximum configurable output power for the sidelink transmit resource and the multiple uplink transmit resources.

[0306] S403b:UE determines the configurable maximum power based on the configurable maximum power corresponding to the sidelink transmit resource and multiple uplink transmit resources.

[0307] The specific embodiments are the same as those described in S401a to S403a, and their details will not be described again in this specification.

[0308] Book Disclosure In this embodiment, when one uplink transmit resource overlaps with multiple sidelink transmit resources, or when one sidelink transmit resource overlaps with multiple uplink transmit resources, the range of the UE's configurable maximum output power is determined, and the configurable maximum output power is determined separately based on the two overlapping resources to determine the UE's configurable maximum output power. DisclosureThe scope of application for the power increase method will be further expanded, resulting in a more flexible method for determining the maximum output power setting, further improving communication quality, and further improving the communication success rate.

[0309] Book Disclosure The method provided in the embodiment is described in detail above with reference to Figures 1 to 6. Disclosure The apparatus provided in the embodiment will be described in detail below with reference to Figures 7 and 8.

[0310] Figure 7 is the book Disclosure This is a schematic block diagram of a communication device according to one embodiment. As shown in Figure 7, the communication device 10 may include a transceiver module 11 and a processing module 12.

[0311] The transceiver module 11 may be configured to receive information transmitted by another device, or to transmit information to another device. For example, a first quantity may be received, or PUSCH may be transmitted. The processing module 12 may be configured to perform processing on the device's contents, for example, to determine a quantity of time units included in a time window.

[0312] In one possible design, the communication device 10 may correspond to the terminal device in the embodiment of the method described above.

[0313] Specifically, the communication device 10 is this Disclosure The communication device 10 may correspond to the first apparatus or UE in any one of Methods 100 to 400 according to the embodiments. The communication device 10 may include modules configured to perform the work performed by the first apparatus in a corresponding manner. In addition, units within the communication device 10 are separately configured to perform the work performed by the first apparatus in a corresponding manner.

[0314] For example, if the communication device 10 corresponds to the first device of method 100, the transceiver module 11 is configured to perform step S101, and the processing module 12 is configured to perform S102, S103, and S104.

[0315] For example, if the communication device 10 corresponds to the terminal device of method 200, the transceiver module 11 is configured to perform steps S201 and S202, and the processing module 12 is configured to perform steps S203 and S204.

[0316] For example, if the communication device 10 corresponds to the terminal device of method 300, the processing module 12 is configured to perform S301 and S302.

[0317] For example, if the communication device 10 corresponds to the terminal device of method 400, the processing module 12 is configured to perform S401a to S403a, S401b, and S402b.

[0318] Figure 8 is the book Disclosure This is a schematic diagram of a communication device 20 according to one embodiment.

[0319] In one possible design, the communication device 20 may be a terminal device including various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, and various forms of terminals, mobile stations, user equipment, software terminals, etc., or it may be a chip, chip system, etc., located on a terminal device.

[0320] The communication device 20 may include a processor 21 (specifically, an example of a processing module) and a memory 22. The memory 22 is configured to store instructions. The processor 21 is configured to execute the instructions stored in the memory 22, and as a result, the communication device 20 performs the steps performed by the device in the aforementioned possible designs in the manner corresponding to Figures 3 to 6.

[0321] Furthermore, the communication device 20 may further include an input port 23 (specifically, an example of a transceiver module) and an output port 24 (specifically, another example of a transceiver module). Additionally, the processor 21, memory 22, input port 23, and output port 24 can communicate with each other through internal connection paths to transmit control signals and / or data signals. Memory 22 is configured to store computer programs. The processor 21 may be configured to control the input port 23 to receive signals and the output port 24 to transmit signals, thereby calling and executing computer programs from memory 22 to complete the steps of the terminal device, radio access network device, UE, or base station of the method described above. Memory 22 may be integrated with the processor 21 or located separately from the processor 21.

[0322] If the communication device 20 is a communication device, the input port 23 is a receiver and the output port 24 is a transmitter. The receiver and transmitter may be the same physical entity or different physical entities. If the receiver and transmitter are the same physical entity, they may be collectively called a transceiver.

[0323] If the communication device 20 is a chip or a circuit, the input port 23 is an input interface and the output port 24 is an output interface.

[0324] In one embodiment, the functions of the input port 23 and output port 24 may be considered to be implemented by a transceiver circuit or a dedicated transceiver chip. The processor 21 may be considered to be implemented by a dedicated processing chip, processing circuit, processor, or general-purpose chip.

[0325] In another embodiment, DisclosureIt can be assumed that the device provided in the embodiment is implemented using a general-purpose computer. Specifically, program code that performs the functions of the processor 21, input port 23, and output port 24 is stored in memory 22, and the general-purpose processor performs the functions of the processor 21, input port 23, and output port 24 by executing the code in memory 22.

[0326] Modules or units within the communication device 20 may be configured to perform actions or processing steps carried out by random access devices (e.g., terminal devices) in the manner described above. For the sake of avoiding repetition, a detailed description thereof is omitted in this specification.

[0327] Book Disclosure For a description, explanation, detailed description, and other steps of the communication device 20 related to the technical solution provided in the embodiments, please refer to the description of the method or other embodiments. Details are not described again in this specification.

[0328] Book Disclosure In these embodiments, the processor may be a central processing unit (CPU), or it may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor.

[0329] Book Disclosure One embodiment further provides a computer-readable storage medium that stores computer instructions used to implement the method performed by the first device or UE in the embodiments of the method described above.

[0330] For example, when a computer program is executed by a computer, the computer can perform the method performed by the first device or UE in the embodiments of the method described above.

[0331] Book Disclosure One embodiment further provides a computer-readable storage medium that stores computer instructions used to implement the method performed by the first device or UE in the embodiments of the method described above.

[0332] For example, when a computer program is executed by a computer, the computer can perform the method performed by the first device or UE in the embodiments of the method described above.

[0333] Book DisclosureIt should be further understood that the memory in the embodiments may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) and may be used as an external cache. Rather than providing a restrictive explanation, many forms of RAM may be used, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus random access memory (direct rambus RAM, DR RAM).

[0334] All or part of the embodiments described above may be implemented using software, hardware, firmware, or any other combination thereof. When software is used to implement the embodiments, all or part of the embodiments described above may be implemented in the form of a computer program product. This computer program product includes one or more computer instructions or computer programs. When the program instructions or computer programs are loaded into a computer and executed, this Disclosure Procedures or functions according to the embodiments are generated, either entirely or partially. The computer may be a general-purpose computer, a dedicated computer, a computer network, or another programmable device. Computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted by wire (e.g., infrared, radio waves, or microwaves) from one website, computer, server, or data center to another website, computer, server, or data center. The computer-readable storage medium may be any usable medium accessible by the computer, or a data storage device such as a server or data center that integrates one or more usable media. The usable media may be magnetic media (e.g., floppy disks, hard disks, or magnetic tapes), optical media (e.g., DVDs), or semiconductor media. The semiconductor media may be solid-state drives.

[0335] It should be understood that the terms "and / or" in this specification describe only the relationship between the relevant objects, and that three such relationships are possible. For example, A and / or B can represent the following three cases: when only A exists, when both A and B exist, and when only B exists. In addition, the letter " / " in this specification generally indicates an "or" relationship between the relevant objects.

[0336] The sequential number of the process is Disclosure It should be understood that this does not imply the execution order in various embodiments. The execution order of a process must be determined according to the function and internal logic of the process. Disclosure This should not be construed as any limitation on the implementation process of the embodiments.

[0337] Those skilled in the art will see this specification. Disclosure In combination with the examples described in the embodiments, it can be seen that the units and algorithmic steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the function is performed by hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art may implement the functions described using different methods for each specific application, but the embodiments described in this book Disclosure It should not be considered to exceed the scope of [this].

[0338] For the sake of simplicity, it will be readily apparent to those skilled in the art that the detailed operating processes of the aforementioned systems, apparatus, and units should be described by referring to the corresponding processes in the embodiments of the methods described above. Further details are not provided herein.

[0339] Book Disclosure In some embodiments provided, DisclosureIt should be understood that the systems, devices, and methods described may be implemented in different ways. For example, the embodiments of the devices described are merely examples. For example, the division into units is merely a logical functional division, and in actual embodiments, there may be other divisions. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or omitted. In addition, the mutual coupling, direct coupling, or communication connection shown or discussed may be implemented by some interface. Indirect coupling or communication connection between devices or units may be implemented in electronic, mechanical, or other forms.

[0340] Units described as separate parts may or may not be physically separate, and parts shown as units may or may not be physical units, may be located in one place, or may be distributed across multiple network units. Some or all of the units may be selected based on actual requirements to achieve the objectives of the embodiment's solution.

[0341] In addition, book Disclosure In this embodiment, the functional units may be integrated into a single processing unit, or each unit may exist physically independently, or two or more units may be integrated into a single unit.

[0342] If the functionality is implemented in the form of a software functional unit and sold or used as a separate product, the functionality may be stored on a computer-readable storage medium. Based on that understanding, Disclosure The technical solution, or its contribution to the prior art, or part of the technical solution, may be implemented in the form of a computer software product. The computer software product is stored on a storage medium, and DisclosureThe invention includes several instructions that instruct a computer device (which may be a personal computer, server, network device, etc.) to perform all or part of the steps of the method described in the embodiments. The storage medium includes any medium capable of storing program code, such as a USB flash drive, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk, optical disk, etc.

[0343] The above explanation is, Disclosure This is merely a specific embodiment of the Disclosure This is not intended to limit the scope of protection. Disclosure in Disclosure Any variations or substitutions that can be easily conceived by a person skilled in the art within the scope of the technically defined text are not permitted. Disclosure It shall fall within the scope of protection. Therefore, this Disclosure The scope of protection shall be subject to the scope of protection set forth in the claims. [Explanation of Symbols]

[0344] 10. Communication equipment 11 Transceiver Modules 12 Processing Modules 20 Communication equipment 21 processors 22 memory 23 Input Ports 24 output ports 100 Communication Methods 200 Communication Methods 300 Communication Methods 400 Power determination method

Claims

1. 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 step 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. Methods that include...

2. 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 transmit resource is located. A step of determining the transmit power of the first uplink transmission based on the second set maximum output power, wherein the transmit power of the first uplink transmission 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 a maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located. A 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 method according to claim 1, further comprising:

3. 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. A step in which, when the fourth set maximum output power is greater than the first set maximum output power, the transmit power of a second uplink transmission is determined based on 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 method according to claim 1, further comprising:

4. The first uplink transmission resource and the first sidelink transmission resource are located in the same frequency band. The method according to claim 1.

5. 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. The processing module is further configured such that, based on the first set maximum output power, it determines the transmit power of the first uplink transmit and the transmit power of the first sidelink transmit, and 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. A communication device equipped with the following features.

6. 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 transmission based on the second set maximum output power, such that the transmit power of the first uplink transmission 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, wherein the third maximum power reduction is the maximum power reduction corresponding to the carrier on which the first sidelink transmission 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.

7. 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.

8. 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.

9. The communication device according to claim 5, comprising a user device or a chip of a user device.

10. 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 step 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. A computer program that makes it possible to do so.

11. 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 transmit resource is located. A step of determining the transmit power of the first uplink transmission based on the second set maximum output power, wherein the transmit power of the first uplink transmission 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 a maximum power reduction corresponding to the carrier on which the first sidelink transmit resource is located. A 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. A computer program according to claim 10 that enables the following:

12. 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 step in which, when the fourth set maximum output power is greater than the first set maximum output power, the transmit power of a second uplink transmission is determined based on 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. A computer program according to claim 10 that enables the following:

13. 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.

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