Power determination method, and terminal and network device

Abstract

The present disclosure relates to a power determination method, and a terminal and a network device. The method comprises: a terminal determining a first sending power and a second sending power, wherein the first sending power represents a power for sending one physical sidelink feedback channel (PSFCH) on a common interlace, and the second sending power represents a power for sending the PSFCH on a dedicated resource block. By means of the power determination method provided in the present disclosure, a terminal can respectively determine a power for sending a PSFCH on a common interlace and a power for sending the PSFCH on a dedicated frequency-domain resource block, so as to meet an OCB requirement, thereby improving the success rate of sending the PSFCH.

Description

Power determination method, terminal, and network equipment Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a power determination method, a terminal, and a network device. Background Art

[0002] In sidelink communication, the transmission status of the corresponding physical sidelink shared channel (PSSCH) is fed back via a physical sidelink feedback channel (PSFCH).

[0003] Summary of the Invention

[0004] In order to meet the occupied channel bandwidth (OCB) requirement, one PSFCH supports transmission on one common interlace and K3 dedicated frequency resource blocks (PRBs). In this case, how to determine the transmission power of the one PSFCH?

[0005] The embodiments of the present disclosure provide a power determination method, a terminal, and a network device.

[0006] According to the first aspect of an embodiment of the present disclosure, a power determination method is proposed, including: a terminal determines a first transmit power and a second transmit power; the first transmit power represents the power of sending a physical direct link feedback channel PSFCH on a common comb ruler; the second transmit power represents the power of sending PSFCH on a dedicated resource block.

[0007] According to the second aspect of an embodiment of the present disclosure, a power determination method is proposed, including: a network device sends first information, where the first information is used to instruct a terminal to determine parameters used for a first transmit power and a second transmit power; the first transmit power represents the power of a physical direct link feedback channel PSFCH sent on a common comb; and the second transmit power represents the power of PSFCH sent on a dedicated resource block.

[0008] According to a third aspect of an embodiment of the present disclosure, a power determination method is proposed, including: a network device sends first information to a terminal, the first information being used to instruct the terminal to determine parameters used for a first transmit power and a second transmit power; wherein the first transmit power represents the power of sending a physical direct link feedback channel PSFCH on a common comb; the second transmit power represents the power of sending the PSFCH on a dedicated resource block; the terminal determines the first transmit power and the second transmit power.

[0009] According to the fourth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a processing module for determining a first transmission power, wherein the first transmission power represents the power of sending a physical direct link feedback channel PSFCH on a common comb; and determining a second transmission power, wherein the second transmission power represents the power of sending the PSFCH on a dedicated resource block.

[0010] According to the fifth aspect of an embodiment of the present disclosure, a network device is proposed, including: a transceiver module for sending first information, wherein the first information is used to instruct a terminal to determine parameters used for a first transmit power and a second transmit power; the first transmit power represents the power of sending a physical direct link feedback channel PSFCH on a common comb; the second transmit power represents the power of sending PSFCH on a dedicated resource block.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the processor is configured to call instructions so that the terminal executes the power determination method of the first aspect.

[0012] According to a seventh aspect of an embodiment of the present disclosure, a network device is provided, comprising: one or more processors; wherein the processor is configured to call instructions so that the network device executes the power determination method of the second aspect.

[0013] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the power determination method of any one of the first aspects, and the network device is configured to implement the power determination method of the second aspect.

[0014] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes the power determination method of the first aspect or the second aspect.

[0015] Through the embodiments of the present disclosure, the terminal can separately determine the power of sending PSFCH on the common comb and the power of sending PSFCH on the dedicated frequency domain resource block to meet the OCB requirements and improve the success rate of sending PSFCH. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0017] FIG1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0018] FIG1B is a schematic diagram of a comb ruler structure provided by an embodiment of the present disclosure.

[0019] FIG1C is a schematic diagram of a comb ruler structure provided by an embodiment of the present disclosure.

[0020] FIG1D is a schematic diagram of a comb ruler and a resource block set provided by an embodiment of the present disclosure.

[0021] FIG2 is an exemplary interactive diagram of a power determination method provided according to an embodiment of the present disclosure.

[0022] FIG3A is an exemplary flowchart of a power determination method according to an embodiment of the present disclosure.

[0023] FIG3B is an exemplary flowchart of a power determination method according to an embodiment of the present disclosure.

[0024] FIG4 is an exemplary flowchart of a power determination method provided according to an embodiment of the present disclosure.

[0025] FIG5A is a schematic diagram of a terminal according to an embodiment of the present disclosure.

[0026] FIG5B is a schematic diagram of a network device according to an embodiment of the present disclosure.

[0027] Fig. 6A is a schematic diagram showing a communication device according to an exemplary embodiment.

[0028] FIG6B is a schematic diagram showing a chip structure according to an exemplary embodiment. DETAILED DESCRIPTION

[0029] The embodiments of the present disclosure provide a power determination method, a terminal, and a network device.

[0030] On the first aspect, an embodiment of the present disclosure proposes a power determination method, where the terminal determines a first transmission power, where the first transmission power represents the power of sending a physical direct link feedback channel PSFCH on a common comb; the terminal determines a second transmission power, where the second transmission power represents the power of sending PSFCH on a dedicated resource block.

[0031] In the above embodiment, the terminal can separately determine the power for sending the PSFCH on the common comb and the power for sending the PSFCH on the dedicated frequency domain resource block to meet the OCB requirement and improve the success rate of sending the PSFCH.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the first transmission power represents the power of sending PSFCH on 1 common comb, 1 common comb includes m comb physical resource blocks PRB, m is equal to 10 or 11; the second transmission power represents the power of sending PSFCH on K3 dedicated frequency domain resource blocks, and the value of K3 is any one of the following: 1, 2, 5.

[0033] In the above embodiment, one common comb ruler and K3 dedicated frequency domain resource blocks are taken as a whole, and the transmission power of one PSFCH on one common comb ruler and K3 dedicated frequency domain resource blocks are determined respectively, and the transmission power of one PSFCH on one common comb ruler is made lower than the transmission power on K3 dedicated frequency domain resource blocks, thereby improving the coverage performance of PSFCH on the dedicated frequency domain resource blocks.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the sum of the first transmit power and the second transmit power is equal to the third transmit power, and the first transmit power is less than the second transmit power; the third transmit power represents the total power of sending 1 PSFCH.

[0035] In the above embodiment, the sum of the transmit power of one PSFCH on one common comb ruler and K3 dedicated frequency domain resource blocks only needs to meet certain conditions, such as the total power required to transmit one PSFCH, to avoid the sum of the transmit power of one PSFCH on one common comb ruler and K3 dedicated frequency domain resource blocks being too large, thereby causing PSFCH transmission failure. Furthermore, the transmit power of one PSFCH on one common comb ruler is made lower than the transmit power on K3 dedicated frequency domain resource blocks, thereby improving the coverage performance of the PSFCH on the dedicated frequency domain resource blocks.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the total power of all PSFCHs sent on a PSFCH opportunity is less than or equal to the first maximum transmit power.

[0037] In the above embodiment, it is necessary to ensure that the total power of all PSFCHs sent on a PSFCH opportunity is less than or equal to the first maximum transmission power to avoid excessive total power of all PSFCHs sent on a PSFCH opportunity, resulting in PSFCH transmission failure.

[0038] In combination with some embodiments of the first aspect, in some embodiments, at least one of the first transmit power, the second transmit power, and the third transmit power is determined by the terminal.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the third transmit power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10(2 μ ·M)+α PSFCH PL; where P PSFCH,one represents the third transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, M represents the sum of m comb PRBs and K3 dedicated PRBs, or M is a positive integer greater than or equal to 1.

[0040] In the above embodiment, the third transmit power is determined based on the first configured power, so that the terminal determines the first transmit power and the second transmit power based on the third transmit power.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the second transmit power satisfies the following relationship: P PSFCH,one =P O,PSFCH +10log 10 (2 μ ·K3)+α PSFCH PL; where P PSFCH,one represents the second transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, and PL represents the downlink path loss.

[0042] In the above embodiment, the second transmit power is determined by the above formula, so that the terminal transmits the PSFCH on the dedicated PRB based on the second transmit power.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the first transmit power is determined based on a proportional factor, a first configured power, a number K3 of dedicated PRBs, a first coefficient, and a downlink path loss.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the first transmission power satisfies the following relationship: P' PSFCH,one =K[P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH ·PL]; where P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, K represents the proportional factor, and 0<K<1.

[0045] In the above embodiment, since the scaling factor is less than 1, the calculated first transmit power must be less than the second transmit power, thereby improving the coverage performance of the PSFCH on the dedicated PRB.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the first transmit power is determined based on the first offset, the number K3 of dedicated PRBs, the first configured power, the first coefficient, and the downlink path loss.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the first transmission power satisfies the following relationship: P' PSFCH,one =P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL-β; where P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, β represents the first offset, and β>0.

[0048] In the above embodiment, since the first offset is greater than 0, the calculated first transmit power must be smaller than the second transmit power, thereby improving the coverage performance of the PSFCH on the dedicated PRB.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the first transmit power is determined based on the second configured power, the number K3 of dedicated PRBs, the second coefficient, and the first coefficient.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the first transmission power satisfies the following relationship: P' PSFCH,one =P' O,PSFCH +10log 10 (2 μ ·m)+α' PSFCH PL; where P' PSFCH,one represents the first transmission power, P' O,PSFCH represents the second configuration power, α' PSFCH represents the second coefficient, and PL represents the downlink path loss.

[0051] In the above embodiment, the first transmit power is determined based on the network device configuration, so that the first transmit power is less than the second transmit power, thereby improving the coverage performance of the PSFCH on the dedicated PRB.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first transmit power is a preconfigured power value.

[0053] In the above embodiment, the first transmit power is preconfigured so that the first transmit power is smaller than the second transmit power, thereby improving the coverage performance of the PSFCH on the dedicated PRB.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the first transmit power is determined based on the second offset, the number of dedicated PRBs K3, the third offset, the first coefficient, the first configured power, and the downlink path loss.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the first transmission power satisfies the following relationship: P' PSFCH,one =(P O,PSFCH -a)+10log 10 (2 μ ·m)+(α PSFCH -b) PL; where P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, a represents the second offset, and b represents the third offset.

[0056] In the above embodiment, the second offset and the third offset are configured so that the first transmit power is smaller than the second transmit power, thereby improving the coverage performance of the PSFCH on the dedicated PRB.

[0057] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: the terminal receives first information, where the first information is used to indicate parameters used by the terminal to determine the first transmit power and the second transmit power.

[0058] In the above embodiment, the terminal receives the first information to determine the first transmit power and the second transmit power to transmit the PSFCH.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the first information is used to indicate at least one of the following: a first configuration power; a first coefficient; a proportional factor; a first offset; a second configuration power; a second coefficient; a second offset; a third offset; a first maximum transmit power; and a second maximum transmit power.

[0060] In the above embodiment, the first information indicates the parameters required to calculate the first transmit power and the second transmit power, so that the terminal can determine the first transmit power and the second transmit power based on the first information and transmit the PSFCH with the first transmit power and the second transmit power.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in at least one of the following: radio resource control signaling RRC; downlink control information DCI; sidelink control information SCI.

[0062] In combination with some embodiments of the first aspect, in some embodiments, within a bandwidth of 1 MHz, the total transmit power of one or more PSFCHs is less than or equal to a second maximum transmit power, and the second maximum transmit power is determined based on the maximum power spectral density value and the sum of the number of comb PRBs and dedicated PRBs occupied by the PSFCH within a bandwidth of 1 MHz.

[0063] In the second aspect, an embodiment of the present disclosure proposes a power determination method, including: a network device sends first information, the first information is used to instruct the terminal to determine the parameters used for the first transmit power and the second transmit power; the first transmit power represents the power of sending the physical direct link feedback channel PSFCH on a common comb; the second transmit power represents the power of sending the PSFCH on a dedicated resource block.

[0064] In the above embodiment, the network device sends the first information so that the terminal determines the first transmit power and the second transmit power based on the first information, thereby meeting the OCB requirement.

[0065] In combination with some embodiments of the second aspect, in some embodiments, the first information is used to indicate at least one of the following: a first configuration power; a first coefficient; a proportional factor; a first offset; a second configuration power; a second coefficient; a second offset; a third offset; a first maximum transmit power; and a second maximum transmit power.

[0066] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in at least one of the following: radio resource control signaling RRC; downlink control information DCI.

[0067] In the second aspect, an embodiment of the present disclosure proposes a power determination method, including: a network device sends first information to a terminal, the first information is used to indicate the parameters used by the terminal to determine a first transmit power and a second transmit power; wherein the first transmit power represents the power of sending a physical direct link feedback channel PSFCH on a common comb; the second transmit power represents the power of sending PSFCH on a dedicated resource block; the terminal determines the first transmit power and the second transmit power.

[0068] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute optional implementation methods of the first and third aspects.

[0069] In a fifth aspect, an embodiment of the present disclosure proposes a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute optional implementation methods of the second and third aspects.

[0070] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, which includes: one or more processors; wherein the terminal is used to execute optional implementation methods such as the first aspect and the third aspect.

[0071] In a seventh aspect, an embodiment of the present disclosure proposes a network device, which includes: one or more processors; wherein the network device application executes optional implementation methods such as the second aspect and the third aspect.

[0072] In the eighth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a network device and a terminal; wherein the terminal is configured to execute the method described in the optional implementation of the first and third aspects, and the network device is configured to execute the method described in the optional implementation of the second and third aspects.

[0073] In the ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and third aspects, and the second and third aspects.

[0074] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and third aspects, and the second and third aspects.

[0075] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method as described in the first and third aspects, and the optional implementation of the second and third aspects.

[0076] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0077] The embodiments of the present disclosure provide a power determination method, a terminal, and a network device. In some embodiments, the terms power determination method, information processing method, communication method, etc. can be used interchangeably.

[0078] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0079] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0080] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0081] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0082] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0083] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0084] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, A and B are selected for execution (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches, such as A, B, and C.

[0085] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0086] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0087] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0088] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0089] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0090] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0091] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0092] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0093] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0094] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0095] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0096] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0097] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0098] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0099] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0100] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0101] As shown in FIG1A , a communication system 100 includes a terminal 101 and a network device 102 .

[0102] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0103] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0104] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal 101 device, an augmented reality (AR) terminal 101 device, a wireless terminal 101 device in industrial control, a wireless terminal 101 device in self-driving, a wireless terminal 101 device in remote medical surgery, a wireless terminal 101 device in a smart grid, a wireless terminal 101 device in transportation safety, a wireless terminal 101 device in a smart city, and at least one of a wireless terminal 101 device in a smart home, but is not limited thereto.

[0105] In some embodiments, the access network device is, for example, a node or device that accesses the terminal 101 to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0106] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0107] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0108] In some embodiments, the core network device can be a device, including one or more network elements, or multiple devices or a group of devices, including one or more network elements, or an entity. The core network includes, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC). It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. It is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0109] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0110] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0111] In the disclosed embodiment, for the Physical Sidelink Control Channel (PSFCH), in order to meet the occupied channel bandwidth (OCB) requirement, a supported method is to send one PSFCH on one common interlace and K3 dedicated frequency resource blocks (PRBs), where one common interlace includes 10 PRBs, and K3 = any value in {1, 2, 5}.

[0112] In some embodiments, the terms "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" and the like may be used interchangeably.

[0113] Optionally, for the comb ruler, which may also be referred to as a comb ruler resource block, the concept of interlaced resource block (IRB) is introduced in the NR-U (New Radio in Unlicensed Spectrum) system, that is, two consecutive available resource blocks are spaced M resource blocks apart.

[0114] For example, for an IRB index of m, the PRBs included in the IRB are {m, M+m, 2M+m, 3M+m, ...}, where m∈{0, 1, ..., M-1}.

[0115] The IRB structure is defined for 15kHz subcarrier spacing (SCS) and 30kHz SCS as follows: For SCS = 15kHz, there are 10 interlaces in one resource block set (RB-Set), i.e., the comb index is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. For SCS = 30kHz, M = 5, i.e., there are 5 interlaces in one RB-Set, i.e., {0, 1, 2, 3, 4}. When PRBs with guard intervals are not considered, there are 10 PRBs in each comb index; when PRBs with guard intervals are considered, there are 11 PRBs in each comb index.

[0116] As shown in Figure 1B, Figure 1B is a schematic diagram of a comb ruler structure provided by an embodiment of the present disclosure. In Figure 1B, when SCS = 30 kHz and M = 5, there are 5 comb ruler indices. For one IRB index, i.e., IRB index 0, the comb ruler resource blocks contained in this comb ruler index are PRBs {0, 5, 10, 15, 20, 25, 30, 35, 40, 45}.

[0117] As shown in Figure 1C, Figure 1C is a schematic diagram of a comb rule structure provided by an embodiment of the present disclosure. In Figure 1C, SCS = 15 kHz, M = 10, and when the PSSCH frequency domain is extended to all RBs on one IRB index, there are a total of 10 comb rule indices. For one IRB index, i.e., IRB index 0, the comb rule resource blocks contained in the comb rule index are PRBs {0, 10, 20, 30, 40, 50, 60, 70, 80, 90}.

[0118] As shown in Figure 1D, Figure 1D is a schematic diagram of a comb ruler and resource block set provided by an embodiment of the present disclosure. In Figure 1D, SCS = 15kHz, M = 10. In NR-U, one Listen Before Talk (LBT) subband = 20MHz, collectively referred to as an RB-Set. The entire carrier bandwidth is divided into multiple resource block sets. The network maps the resource block set to the BWP by configuring a partial bandwidth (Bandwidth Part, BWP). Optionally, the BWP configured by the network device must contain an integer number of resource block sets.

[0119] In some embodiments of the present disclosure, useless information is sent on the common interlace, and useful HARQ feedback information is sent on the dedicated PRB. The total power of all PSFCHs sent simultaneously by a terminal on a PSFCH occasion cannot exceed the maximum power value Pcmax.

[0120] However, if all useless PSFCH information for a terminal is sent on a single common interlace, the total transmit power on that common interlace will be high, significantly interfering with the useful Hybrid Automatic Repeat Request (HARQ) information sent on the K3 dedicated PRBs. Furthermore, given the maximum transmit power Pcmax, if the total transmit power on a single common interlace is high, the transmit power on the K3 dedicated PRBs will decrease, impacting PSFCH coverage on the dedicated PRBs.

[0121] Therefore, how to reduce the transmit power of PSFCH on the common interlace and increase the transmit power of PSFCH on K3 dedicated PRBs is a problem that needs to be solved.

[0122] Based on this, the embodiment of the present disclosure provides a power determination method, in which the terminal determines the power of sending PSFCH on the common comb and the power of sending PSFCH on the dedicated PRB respectively to meet the OCB requirements and improve the success rate of sending PSFCH.

[0123] FIG2 is an interactive diagram of a power determination method according to an embodiment of the present disclosure. As shown in FIG2 , an embodiment of the present disclosure relates to a power determination method, which includes:

[0124] Step S2101 , the network device 102 sends first information to the terminal 101 .

[0125] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0126] In some embodiments, terminal 101 receives first information.

[0127] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0128] In some embodiments, the first information is used to indicate a parameter used by the terminal to determine the transmission power for sending one PSFCH.

[0129] In some embodiments, the first information is used by the terminal to determine the transmission power for sending one PSFCH.

[0130] Optionally, the transmission power of one PSFCH includes a first transmission power and a second transmission power.

[0131] In some embodiments, the first information is used to indicate parameters used by the terminal to determine the first transmit power and the second transmit power.

[0132] In some embodiments, the first information is used by the terminal to determine a first transmit power and a second transmit power for transmitting the PSFCH.

[0133] In some embodiments, the first transmit power represents the power at which the PSFCH is transmitted on the common interlace.

[0134] In some embodiments, the first transmit power represents the transmit power of the PSFCH transmitted on the common interlace.

[0135] In some embodiments, the first transmit power represents the power of transmitting the PSFCH on one common interlace.

[0136] Optionally, one common interlace includes 10 or 11 comb rulers PRB.

[0137] Optionally, one common interlace includes 10 or 11 PRBs.

[0138] In some embodiments, the name of the first transmit power is not limited, and it can be, for example, "terminal transmit power", "comb transmit power", "transmit power", etc.

[0139] In some embodiments, the second transmit power represents the power of transmitting the PSFCH on the dedicated PRB.

[0140] In some embodiments, the second transmit power represents the transmit power of the PSFCH transmitted on the dedicated PRB.

[0141] In some embodiments, the second transmit power represents the power of transmitting the PSFCH on K3 dedicated PRBs.

[0142] Optionally, the value of K3 is any of the following: 1, 2, or 5.

[0143] In some embodiments, the name of the second transmit power is not limited, and it can be, for example, "terminal transmit power", "dedicated transmit power", "transmit power", etc. In some embodiments, the first information is used to indicate at least one of the following:

[0144] First configuration power;

[0145] First coefficient;

[0146] Scale factor;

[0147] First offset;

[0148] Second configuration power;

[0149] Second coefficient;

[0150] Second offset;

[0151] Third offset;

[0152] a first maximum transmit power;

[0153] Second maximum transmit power.

[0154] In some embodiments, the first information indicates a first configured power. Optionally, the first information configures the first configured power P via a parameter d1-P0-PSFCH. PSFCH,one Optionally, the parameter dl-P0-PSFCH includes parameter dl-P0-PSFCH-r17 or parameter dl-P0-PSFCH-r16. Optionally, the value of the first configured power is an integer in the range of (-202…24). Optionally, the parameter dl-P0-PSFCH is carried in Radio Resource Control (RRC) signaling.

[0155] In some embodiments, the first information indicates the first coefficient. Optionally, the first information configures the first coefficient α through the parameter dl-Alpha-PSFCH-r16 PSFCH Optionally, the value of the first parameter is any one of {0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1}. In some embodiments, the parameter dl-Alpha-PSFCH-r16 is not configured, α PSFCH The value of is 1. Optionally, the parameter dl-Alpha-PSFCH-r16 is carried in RRC. Optionally, the name of the first coefficient is not limited, and it can be, for example, "compensation coefficient" or "compensation factor".

[0156] In some embodiments, the first information indicates a scaling factor. Optionally, the scaling factor is configured via RRC, or the scaling factor is determined based on one of the pre-configured values ​​indicated by downlink control information (DCI), or the scaling factor is determined based on one of the pre-configured values ​​indicated by sidelink control information (SCI). Optionally, the scaling factor has a value greater than 0 and less than 1.

[0157] In some embodiments, the first information indicates a first offset. Optionally, the first offset is configured via RRC, or the first offset is determined based on one of the values ​​pre-configured by the DCI, or the first offset is determined based on one of the values ​​pre-configured by the SCI. Optionally, the value of the first offset is greater than 1. Optionally, the name of the first offset is not limited, and it can be, for example, "offset value."

[0158] In some embodiments, the first information indicates a second configured power. Optionally, the second configured power is configured via RRC, or the second configured power is determined based on one of the values ​​pre-configured by a DCI indication, or the second configured power is determined based on one of the values ​​pre-configured by an SCI indication.

[0159] In some embodiments, the first information indicates the second coefficient. Optionally, the second coefficient is configured via RRC, or the second coefficient is determined based on one of the values ​​pre-configured by a DCI indication, or the second coefficient is determined based on one of the values ​​pre-configured by an SCI indication.

[0160] In some embodiments, the first information indicates a second offset. Optionally, the second offset is configured via RRC, or the second offset is determined based on one of the values ​​pre-configured by the DCI, or the second offset is determined based on one of the values ​​pre-configured by the SCI. Optionally, the value of the second offset is greater than 0. Optionally, the name of the second offset is not limited, and may be, for example, "offset value."

[0161] In some embodiments, the first information indicates a third offset. Optionally, the third offset is configured via RRC, or the third offset is determined based on one of the values ​​pre-configured by the DCI, or the third offset is determined based on one of the values ​​pre-configured by the SCI. Optionally, the value of the third offset is greater than 0. Optionally, the name of the third offset is not limited, and it can be, for example, "offset value."

[0162] In some embodiments, the first information indicates a first maximum transmit power. Optionally, the first information is carried in an RRC, and the first maximum transmit power is configured via the RRC. Optionally, the first information is carried in an RRC, and multiple first maximum transmit powers are preconfigured via the RRC, and the maximum transmit power is determined from the multiple first maximum transmit powers based on a dynamic indication of a DCI or SCI. Optionally, the name of the first maximum transmit power is not limited, and can be, for example, "maximum transmit power."

[0163] In some embodiments, the first information indicates a second maximum transmit power. Optionally, the second maximum transmit power represents a maximum transmit power allowed in a bandwidth of 1 MHz. Optionally, within a bandwidth of 1 MHz, a total transmit power of one or more PSFCHs is less than or equal to the second maximum transmit power.

[0164] Optionally, the second maximum transmit power is determined based on the maximum power spectral density value and the sum of the number of comb PRBs and dedicated PRBs occupied by the PSFCH within a bandwidth of 1 MHz.

[0165] For example, the maximum power spectral density value is 10dBm / Mhz, and the PSFCH occupies 1 common interlace PRB and 2 dedicated PRBs in 1MHZ, that is, the PSFCH occupies 3 PRBs in 1MHZ (optionally, 1MHz contains 5 PRBs), then the second maximum transmit power value is 10+10log(3 / 5)=7.8dBm. Assuming that there are 7 PSFCHs transmitted in 1MHZ, the total transmit power of the 7 PSFCHs is less than or equal to 7.8dBm. Optionally, the first information is carried in RRC, and the second maximum transmit power is configured through RRC. Optionally, the first information is carried in RRC, and multiple second maximum transmit powers are pre-configured through RRC, and the second maximum transmit power is determined from the multiple second maximum transmit powers based on DCI or SCI dynamic indication. Optionally, the name of the second maximum transmit power is not limited, and it is, for example, "maximum transmit power".

[0166] In some embodiments, the total power of all PSFCHs transmitted on one PSFCH opportunity is less than or equal to the minimum of the first maximum transmit power and the second maximum transmit power.

[0167] In some embodiments, the first maximum transmit power and / or the first maximum transmit power is determined by a predefined method, for example, a protocol predefined method.

[0168] In some embodiments, the first information is used to indicate a first configuration power and a first coefficient.

[0169] In some embodiments, the first information is used to indicate a scaling factor, a first configuration power, and a first coefficient.

[0170] In some embodiments, the first information is used to indicate a first offset, a first configuration power, and a first coefficient.

[0171] In some embodiments, the first information is used to indicate the second configuration power, the second coefficient, and the first coefficient.

[0172] In some embodiments, the first information is used to indicate the second offset, the third offset, the first coefficient, and the first configured power. Of course, the content indicated by the above first information is only exemplary, and in the embodiments of the present disclosure, the first information can indicate any parameter.

[0173] In some embodiments, the name of the first information is not limited, and it can be, for example, "configuration information" or "instruction information".

[0174] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0175] In step S2102, the terminal 101 determines a first transmission power and a second transmission power.

[0176] In some embodiments, the first transmit power is different from the second transmit power.

[0177] In some embodiments, the first transmit power is less than the second transmit power.

[0178] In some embodiments, the sum of the first transmit power and the second transmit power is equal to the third transmit power.

[0179] Optionally, the third transmit power represents the total power of transmitting 1 PSFCH.

[0180] Optionally, the name of the third transmit power is not limited, and it can be, for example, "terminal transmit power", "total transmit power", "total transmit power", "transmit power", etc.

[0181] Optionally, the total power of all PSFCHs sent on a PSFCH opportunity is less than or equal to the first maximum transmit power.

[0182] In some embodiments, at least one of the first transmit power, the second transmit power, and the third transmit power is determined by the terminal.

[0183] Solution 1: The first information indicates the first configured power. Optionally, the first information indicates the first configured power using the parameter d1-P0-PSFCH. For example, the terminal determines the first configured power using the parameter d1-P0-PSFCH-r17 or the parameter d1-P0-PSFCH-r16.

[0184] In some embodiments, the terminal determines the third transmit power based on the first configured power.

[0185] In some embodiments, the third transmit power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10 (2 μ ·M)+α PSFCH ·PL

[0186] Among them, P PSFCH,one represents the third transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, M represents the sum of m comb PRBs and K3 dedicated PRBs, or M is a positive integer greater than or equal to 1.

[0187] Optionally, the first coefficient α PSFCH Indicated by the first information. For example, through the configuration of the parameter dl-Alpha-PSFCH-r16, optionally, the value of the first parameter is any one of {0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1}. Optionally, the parameter dl-Alpha-PSFCH-r16 is not configured, α PSFCH The value of is 1.

[0188] Alternatively, PL = PL b,f,c (q d ), represents the effective downlink BWP for carrier f of serving cell c, based on the reference signal index q d Calculate the downlink path loss. Optionally, the unit of the downlink path loss is dB.

[0189] In some embodiments, the terminal autonomously determines the first transmit power and the second transmit power based on the third transmit power. Optionally, the sum of the first transmit power and the second transmit power must be equal to the third transmit power, and the first transmit power must be less than the second transmit power. Optionally, the total power of all PSFCHs simultaneously transmitted by the terminal on a PSFCH occasion is less than or equal to the first maximum transmit power. Optionally, the number of PSFCHs simultaneously transmitted by the terminal on a PSFCH occasion is determined by the terminal implementation.

[0190] Solution 2: The first information does not indicate the first configured power, that is, the parameter d1-P0-PSFCH-r17 or the parameter d1-P0-PSFCH-r16 is not configured.

[0191] In some embodiments, the terminal autonomously determines the first transmit power, the second transmit power, and the third transmit power.

[0192] In some embodiments, the sum of the first transmit power and the second transmit power is equal to the third transmit power.

[0193] In some embodiments, the total power of all PSFCHs simultaneously transmitted by the terminal on one PSFCH occasion is less than or equal to the first maximum transmit power. Optionally, the number of PSFCHs simultaneously transmitted by the terminal on one PSFCH occasion is determined by the terminal implementation.

[0194] Solution 3: The first information indicates the first configured power. Optionally, the first information indicates the first configured power using the parameter d1-P0-PSFCH. For example, the terminal determines the first configured power using the parameter d1-P0-PSFCH-r17 or the parameter d1-P0-PSFCH-r16.

[0195] In some embodiments, the terminal determines the first transmit power and the second transmit power.

[0196] In some embodiments, the second transmit power is determined based on the first configured power.

[0197] In some embodiments, the second transmit power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10 (2 μ ·K3)+α PSFCH ·PL

[0198] Among them, P PSFCH,one represents the second transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, and PL represents the downlink path loss.

[0199] Optionally, the first coefficient α PSFCH Indicated by the first information. For example, through the configuration of the parameter dl-Alpha-PSFCH-r16, optionally, the value of the first parameter is any one of {0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1}. Optionally, the parameter dl-Alpha-PSFCH-r16 is not configured, α PSFCH The value of is 1.

[0200] Alternatively, PL = PL b,f,c (q d ), represents the effective downlink BWP for carrier f of serving cell c, based on the reference signal index q d Calculate the downlink path loss. Optionally, the unit of the downlink path loss is dB.

[0201] In some embodiments, the terminal determines the first transmit power based on any one of the following methods:

[0202] Mode 1: The first transmit power is determined based on the proportional factor, the first configured power, the number K3 of dedicated PRBs, the first coefficient, and the downlink path loss.

[0203] In some embodiments, one or more of the scaling factor, the first configuration power, and the first coefficient are indicated by first information. Optionally, the first information is carried in RRC.

[0204] In some embodiments, the scaling factor is preconfigured by RRC, the DCI indicates a certain value preconfigured by RRC, or the SCI indicates a certain preconfigured value.

[0205] Optionally, the value of the scaling factor is greater than 0 and less than 1.

[0206] In some embodiments, the first coefficient takes a value of 1.

[0207] In some embodiments, the first transmit power satisfies the following relationship: PSFCH,one =K[P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL]

[0208] Among them, P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, K represents the proportional factor, and 0<K<1.

[0209] In some embodiments, the first transmit power satisfies the following relationship:

[0210] P' PSFCH,one =K[P O,PSFCH +10log 10 (2 μ ·m)]+α PSFCH ·PL

[0211] Mode 2: The first transmit power is determined based on the first offset, the first configured power, the number K3 of dedicated PRBs, the first coefficient, and the downlink path loss.

[0212] In some embodiments, one or more of the first offset, the first configured power, and the first coefficient are indicated by first information. Optionally, the first information is carried in RRC.

[0213] In some embodiments, the first offset is preconfigured by RRC, and the DCI or SCI indicates a preconfigured value.

[0214] Optionally, the value of the first offset is greater than 0.

[0215] In some embodiments, the first coefficient takes a value of 1.

[0216] In some embodiments, the first transmit power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL-β

[0217] Among them, P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, β represents the first offset, and β>0.

[0218] In some embodiments, the first transmit power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL+β

[0219] Among them, β<0.

[0220] Mode 3: The first transmit power is determined based on the second configured power, the number K3 of dedicated PRBs, the second coefficient, and the first coefficient.

[0221] In some embodiments, one or more of the second configuration power, the second coefficient, and the first coefficient are indicated by first information. Optionally, the first information is carried in RRC.

[0222] In some embodiments, the second configured power is preconfigured by RRC, and the DCI or SCI indicates a preconfigured value.

[0223] In some embodiments, the second coefficient is preconfigured by RRC, and the DCI or SCI indicates a certain preconfigured value.

[0224] In some embodiments, the first coefficient takes a value of 1.

[0225] In some embodiments, the first transmit power satisfies the following relationship: PSFCH,one =P' O,PSFCH +10log 10 (2 μ ·m)+α' PSFCH ·PL

[0226] Among them, P' PSFCH,one represents the first transmission power, P' O,PSFCH represents the second configuration power, α' PSFCHrepresents the second coefficient, and PL represents the downlink path loss.

[0227] Mode 4: The first transmit power is a preconfigured power value.

[0228] In some implementations, the first transmit power is a power value preconfigured by RRC.

[0229] In some embodiments, the first transmit power is a certain power value pre-configured by a DCI indication, or a certain power value pre-configured by an SCI indication.

[0230] Mode 5: The first transmit power is determined based on the second offset, the third offset, the number K3 of dedicated PRBs, the first coefficient, the first configured power, and the downlink path loss.

[0231] In some embodiments, one or more of the second offset, the third offset, the first coefficient, and the first configuration power are indicated by first information. Optionally, the first information is carried in RRC.

[0232] In some embodiments, the second offset is preconfigured by RRC, and the DCI or SCI indicates a preconfigured value.

[0233] In some embodiments, the third offset is preconfigured by RRC, and the DCI or SCI indicates a preconfigured value.

[0234] In some embodiments, the first coefficient takes a value of 1.

[0235] In some embodiments, the first transmit power satisfies the following relationship: PSFCH,one =(P O,PSFCH -a)+10log 10 (2 μ ·m)+(α PSFCH -b) PL

[0236] Among them, P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, a represents the second offset, and b represents the third offset.

[0237] In some embodiments, the first transmit power satisfies the following relationship: PSFCH,one =(P O,PSFCH +a)+10log 10 (2 μ ·m)+(α PSFCH +b) PL

[0238] Solution 4: The first information does not indicate the first configured power, that is, the parameter d1-P0-PSFCH-r17 or the parameter d1-P0-PSFCH-r16 is not configured.

[0239] In some embodiments, the terminal autonomously determines the first transmit power and the second transmit power. Optionally, the first transmit power is less than the second transmit power.

[0240] In some embodiments, the first transmit power is determined autonomously by the terminal, and the second transmit power is a preconfigured power value, or a DCI indicates a preconfigured power value, or an SCI indicates a preconfigured power value. Optionally, the first transmit power is less than the second transmit power.

[0241] In the above embodiment, the first transmit power and the second transmit power determined by the terminal are the powers actually used to transmit the PSFCH. That is, the power actually used to transmit one PSFCH by the terminal is the sum of the first transmit power and the second transmit power, that is, the third transmit power.

[0242] In some embodiments, the sum of the third transmit powers of all PSFCHs simultaneously transmitted on one PSFCH occasion is less than or equal to the first maximum transmit power, and the transmit power actually used by the terminal to transmit one PSFCH is the third transmit power.

[0243] In the above embodiment, the first transmission power and the second transmission power determined by the terminal are not the powers at which the terminal actually transmits the PSFCH.

[0244] In some embodiments, the number of PSFCHs scheduled by the terminal is less than or equal to the number of PSFCHs supported by the terminal capability, but the sum of the third transmit powers of the scheduled PSFCHs is greater than the first maximum transmit power, and the terminal autonomously determines the number N of PSFCHs to be transmitted simultaneously on one PSFCH occasion. Tx,PSFCH .

[0245] Optionally, the transmit power of each PSFCH is P CMAX -10log 10 (N Tx,PSFCH ).

[0246] Optionally, the power of the terminal actually sending one PSFCH is the sum of the third transmission power and P CMAX -10log 10 (N Tx,PSFCH ) is the minimum value between .

[0247] In other embodiments, the number of PSFCHs scheduled by the terminal is greater than the number of PSFCHs supported by the terminal capability, and the terminal autonomously determines the number N of PSFCHs to be sent simultaneously on one PSFCH occasion.Tx,PSFCH .

[0248] Optionally, the transmit power of each PSFCH is P CMAX -10log 10 (N Tx,PSFCH ).

[0249] Optionally, the power of the terminal actually sending one PSFCH is the sum of the third transmission power and P CMAX -10log 10 (N Tx,PSFCH ) is the minimum value between .

[0250] The power determination method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2102.

[0251] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0252] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0253] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0254] FIG3A is a flow chart of a method for determining power according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a method for determining power, and the method includes:

[0255] Step S3101, obtain first information.

[0256] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0257] In some embodiments, the terminal 101 receives the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0258] In some embodiments, terminal 101 obtains first information specified by a protocol.

[0259] In some embodiments, terminal 101 obtains the first information from upper layer(s).

[0260] In some embodiments, the terminal 101 performs processing to obtain the first information.

[0261] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0262] Step S3102: Determine a first transmission power and a second transmission power.

[0263] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0264] In some embodiments, the first transmit power and the second transmit power are determined based on the first information.

[0265] The power determination method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3102.

[0266] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0267] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0268] FIG3B is a flow chart of a power method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a power method, which includes:

[0269] Step S3201: Determine the first transmission power and the second transmission power

[0270] Optional implementations of step S3201 can be found in step S2102 of FIG. 2 , optional implementations of step S3102 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0271] In some embodiments, the first transmission power represents the power of sending PSFCH on 1 common comb, where 1 common comb contains m comb physical resource blocks PRBs, and m is equal to 10 or 11; the second transmission power represents the power of sending PSFCH on K3 dedicated PRBs, and the value of K3 is any one of the following: 1, 2, 5.

[0272] In some embodiments, the sum of the first transmit power and the second transmit power is equal to the third transmit power, and the first transmit power is less than the second transmit power; the third transmit power represents the total power for transmitting 1 PSFCH.

[0273] In some embodiments, the total power of all PSFCHs transmitted on one PSFCH opportunity is less than or equal to the first maximum transmit power.

[0274] In some embodiments, at least one of the first transmit power, the second transmit power, and the third transmit power is determined by the terminal.

[0275] In some embodiments, the third transmit power satisfies the following relationship:

[0276] P PSFCH,one =P O,PSFCH +10log 10 (2 μ ·M)+α PSFCH PL; where P PSFCH,one represents the third transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, M represents the sum of m comb PRBs and K3 dedicated PRBs, or M is a positive integer greater than or equal to 1.

[0277] In some embodiments, the second transmit power satisfies the following relationship:

[0278] P PSFCH,one =P O,PSFCH +10log 10 (2 μ ·K3)+α PSFCH PL; where P PSFCH,one represents the second transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, and PL represents the downlink path loss.

[0279] In some embodiments, the first transmit power is determined based on the scaling factor, the first configured power, the number K3 of dedicated PRBs, the first coefficient, and the downlink path loss.

[0280] In some embodiments, the first transmit power satisfies the following relationship:

[0281] P' PSFCH,one =K[P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH ·PL]; where P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, K represents the proportional factor, and 0<K<1.

[0282] In some embodiments, the first transmit power is determined based on the first offset, the first configured power, the number K3 of dedicated PRBs, the first coefficient, and the downlink path loss.

[0283] In some embodiments, the first transmit power satisfies the following relationship:

[0284] P' PSFCH,one =P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL-β; where P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, β represents the first offset, and β>0.

[0285] In some embodiments, the first transmit power is determined based on the second configured power, the second coefficient, the number K3 of dedicated PRBs, and the first coefficient.

[0286] In some embodiments, the first transmit power satisfies the following relationship:

[0287] P' PSFCH,one =P' O,PSFCH +10log 10 (2 μ ·m)+α' PSFCH PL; where P' PSFCH,one represents the first transmission power, P' O,PSFCH represents the second configuration power, α' PSFCH represents the second coefficient, and PL represents the downlink path loss.

[0288] In some embodiments, the first transmit power is a preconfigured power value.

[0289] In some embodiments, the first transmit power is determined based on the second offset, the third offset, the first coefficient, the number K3 of dedicated PRBs, the first configured power, and the downlink path loss.

[0290] In some embodiments, the first transmit power satisfies the following relationship:

[0291] P' PSFCH,one =(P O,PSFCH -a)+10log 10 (2 μ ·m)+(α PSFCH -b) PL; where P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCHrepresents the first coefficient, PL represents the downlink path loss, a represents the second offset, and b represents the third offset.

[0292] In some embodiments, the method further includes: the terminal receiving first information, where the first information is used to indicate parameters used by the terminal to determine the first transmit power and the second transmit power.

[0293] In some embodiments, the first information is used to indicate at least one of the following parameters: a first configured power; a first coefficient; a scaling factor; a first offset; a second configured power; a second coefficient; a second offset; a third offset; a first maximum transmit power; and a second maximum transmit power.

[0294] In some embodiments, the first information is carried in at least one of the following: radio resource control signaling RRC; downlink control information DCI; sidelink control information SCI.

[0295] In some embodiments, within a bandwidth of 1 MHz, the total transmit power of one or more PSFCHs is less than or equal to a second maximum transmit power, and the second maximum transmit power is determined based on the maximum power spectral density value and the sum of the number of comb PRBs and dedicated PRBs occupied by the PSFCH within a bandwidth of 1 MHz.

[0296] In an embodiment of the present disclosure, step S3201 may be combined with step S2101 of FIG. 3A .

[0297] FIG4 is a flow chart of a method for determining power according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a method for determining power, and the method includes:

[0298] Step S4101, sending the first information.

[0299] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0300] In some embodiments, the network device 102 sends the first information to the terminal 101, but is not limited thereto and may also send the first information to other entities.

[0301] Optionally, the first information is used by the terminal 101 to determine the first transmit power and the second transmit power. Optional implementations thereof can be found in the optional implementations of step S2102 in FIG2 and other related parts of the embodiment involved in FIG2 , which will not be described in detail here.

[0302] In some embodiments, the first information is used by the terminal to determine a first transmit power and a second transmit power; the first transmit power represents the power of transmitting PSFCH on a common comb; the second transmit power represents the power of transmitting PSFCH on a dedicated resource block.

[0303] In some embodiments, the first information is used to indicate at least one of the following: a first configured power; a first coefficient; a scaling factor; a first offset; a second configured power; a second coefficient; a second offset; a third offset; a first maximum transmit power; and a second maximum transmit power.

[0304] In some embodiments, the first information is carried in at least one of the following: radio resource control signaling RRC; downlink control information DCI.

[0305] Its optional implementation method can refer to the optional implementation method of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0306] The present disclosure also provides a method for determining power, including:

[0307] To meet the OCB requirements for PSFCH, one supported method is to transmit one PSFCH over one common interlace and K3 dedicated PRBs. The common interlace consists of 10 PRBs, and K3 is one of the following values: K3 = {1, 2, 5} PRBs. The common interlace transmits useless information, while the dedicated PRBs transmit useful HARQ feedback information. In Release 16 and Release 17 sidelinks, the total power of all PSFCHs transmitted simultaneously by a terminal on a PSFCH occasion cannot exceed the maximum power value, Pcmax.

[0308] Problem: If all PSFCHs of a terminal are transmitted on a single common interlace, the total power on that common interlace will be high, causing significant interference to the useful HARQ information sent on the K3 dedicated PRBs. Furthermore, given the maximum power limit (Pcmax), high total power on a single common interlace will reduce the power on the K3 dedicated PRBs, impacting the PSFCH coverage performance on the dedicated PRBs. Therefore, further research is needed to reduce PSFCH power on the common interlace and increase PSFCH coverage on the K3 dedicated PRBs.

[0309] This solution provides a method for determining the transmit power on a common interlace and on K3 dedicated PRBs when transmitting a PSFCH. This solution improves the coverage performance of the PSFCH on the dedicated PRBs.

[0310] In some embodiments, the terminal determines the transmit power of one PSFCH on one common interlace and the transmit power on K3 dedicated PRBs.

[0311] In some embodiments, a PSFCH in an RB set is transmitted using different transmit powers on K3 dedicated PRBs and one common interlace, and the transmit power on the common interlace is lower than the transmit power on the K3 dedicated PRBs. Optionally, one common interlace contains 10 or 11 comb PRBs.

[0312] Solution 1-1: When dl-P0-PSFCH is configured, that is, dl-P0-PSFCH-r17 and / or dl-P0-PSFCH-r16 is configured, the power value P of PSFCH is calculated by reusing formula 1 specified in R16 / 17 sidelink. PSFCH,one , P PSFCH,one Refers to the transmit power value of one PSFCH on one common interlace and K3 dedicated PRBs. P1 is the power value on one common interlace, and P2 is the power value on K3 dedicated PRBs. The terminal implementation determines the P1 and P2 values, but P1 and P2 must meet the following conditions at the same time:

[0313] Condition 1: The sum of P1 and P2 is P PSFCH,one

[0314] Condition 2: P1 is less than P2 PSFCH,one =P O,PSFCH +10log 10 (2 μ ·M)+α PSFCH PL……Formula 1 P PSFCH,one =P1+P2...Formula 2

[0315] Solution 1-2: When dl-P0-PSFCH is not configured, that is, dl-P0-PSFCH-r17 and / or dl-P0-PSFCH-r16 are not configured (power control based on downlink path loss is disabled in PSFCH). It is up to the terminal to decide P PSFCH,one , and the number of PSFCHs sent simultaneously on one PSFCH occasion, but ensuring that the total power of all PSFCHs sent does not exceed Pcmax. PSFCH,one Refers to the total power value of one PSFCH sent on one common interlace and K3 dedicated PRBs. P1 is the power value on one common interlace, and P2 is the power value on K3 dedicated PRBs. The P1 and P2 values ​​are determined by the UE implementation, but P1 and P2 need to meet the following conditions at the same time:

[0316] Condition 1: The sum of P1 and P2 is P PSFCH,one

[0317] Condition 2: P1 is less than P2.

[0318] Solution 2-1: When dl-P0-PSFCH is configured, that is, dl-P0-PSFCH-r17 and / or dl-P0-PSFCH-r16 is configured, the power values ​​of K3 dedicated PRBs and 1 common interlace are respectively counted.

[0319] In some embodiments, K3 dedicated PRBs are calculated using formula 1, and the transmit power of PSFCH on 1 common interlace is P' PSFCH,one , calculated as follows:

[0320] Example 1-1-1: Use formula 2 for calculation, and multiply formula 1 by a scaling factor K, where 0<K<1. K is configured by RRC parameters, or a pre-configured value indicated by DCI or SCI. Other parameter values ​​in the formula reuse the values ​​configured in R16 / 17 sidelink.

[0321] Example 1-1-2: Use formula 3 for calculation, add an offset β to formula 1, β>0, β is configured by RRC parameters, or a pre-configured value indicated by DCI or SCI, and other parameter values ​​in the formula reuse the values ​​configured in R16 / 17 sidelink.

[0322] Example 1-1-3: Calculated using Formula 4, where P' O,PSFCH and α' PSFCHThese are new parameters introduced to calculate the transmit power on the common interlace PRBs. These parameters are configured by RRC or pre-configured by DCI or SCI.

[0323] Example 1-1-4: P' PSFCH,one is a pre-configured value.

[0324] Example 1-1-5: Calculate using formula 5, the parameters P configured at R16 / 17 O,PSFCH and α PSFCH Subtract 1 offset a and b from the basis, where a and b are configured by RRC or a pre-configured value indicated by DCI or SCI.

[0325] In some embodiments, for a dedicated PRB, P O,PSFCH and α PSFCH The value of P follows the R16 / 17 sidelink configuration value. O,PSFCH Configured by dl-P0-PSFCH-r17, α PSFCH Configured by dl-Alpha-PSFCH-r16, but P' O,PSFCH and α' PSFCH Reference new RRC parameters, or P' O,PSFCH Subtract an offset a and / or α' from dl-P0-PSFCH-r17 PSFCH The value is dl-Alpha-PSFCH-r16 minus 1 offset b.

[0326] Formula 1-5 is as follows: P PSFCH,one =P O,PSFCH +10log 10 (2 μ ·K3)+α PSFCH PL...Formula 1

[0327] P' PSFCH,one =K[P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL]……Formula 2 P' PSFCH,one =P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL-β……Formula 3 P' PSFCH,one =P' O,PSFCH +10log 10 (2 μ ·m)+α' PSFCHPL……Formula 4 P' PSFCH,one =(P O,PSFCH -a)+10log 10 (2 μ ·m)+(α PSFCH -b) PL……Formula 5

[0328] Solution 2-2: When dl-P0-PSFCH is not configured, that is, dl-P0-PSFCH-r17 and / or dl-P0-PSFCH-r16 are not configured (power control based on downlink path loss is disabled in PSFCH).

[0329] In some embodiments, the terminal is implemented to determine the power value P on K3 dedicated PRBs. PSFCH,one , the transmit power P' of PSFCH on a common interlace PSFCH,one But P' PSFCH,one Lower than P PSFCH,one , P' PSFCH,one Use the following method to determine:

[0330] Example 1-1: P' PSFCH,one It is a pre-configured value, or a pre-configured value indicated by DCI or SCI.

[0331] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0332] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0333] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0334] Figure 5A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 5A, the terminal 5100 may include: at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the processing module is used to determine a first transmit power and a second transmit power; the first transmit power represents the power of sending one physical direct link feedback channel PSFCH on a common comb; the second transmit power represents the power of sending PSFCH on a dedicated resource block. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2101, but not limited to this) executed by the terminal 101 in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps (such as step S2102, but not limited to this) executed by the terminal 101 in any of the above methods, which will not be repeated here.

[0335] Figure 5B is a structural diagram of the network device proposed in an embodiment of the present disclosure. As shown in Figure 5B, the network device 5200 may include: a transceiver module 5201. In some embodiments, the above-mentioned transceiver module is used to send a first information, and the first information is used to instruct the terminal to determine the parameters used for the first transmission power and the second transmission power; wherein the first transmission power represents the power of sending one physical direct link feedback channel PSFCH on a common comb; the second transmission power represents the power of sending PSFCH on a dedicated resource block; the terminal determines the first transmission power and the second transmission power. Optionally, the above-mentioned transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods (such as step S2101, but not limited to this), which will not be repeated here. Optionally, the network device 5200 may include: other modules such as a processing module.

[0336] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0337] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0338] Figure 6A is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0339] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0340] In some embodiments, the communication device 6100 further includes one or more transceivers 6103. When the communication device 6100 includes one or more transceivers 6103, the transceiver 6103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, but not limited thereto), and the processor 6101 performs at least one of the other steps (for example, step S2102, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0341] In some embodiments, the communication device 6100 further includes one or more memories 6102 for storing data. Alternatively, all or part of the memories 6102 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6102 and may be configured to receive data from the memories 6102 or other devices, or to send data to the memories 6102 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6102 and send the data to the processor 6101.

[0342] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited to FIG6A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0343] 6B is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6B , but the present disclosure is not limited thereto.

[0344] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0345] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0346] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., step S2101, but not limited thereto) in the above method, such as sending and / or receiving. For example, the interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above method means that the interface circuit 6202 performs data exchange between the processor 6201, chip 6200, memory 6203, or a transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps (e.g., step S2102, but not limited thereto).

[0347] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0348] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0349] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A method for determining power, characterized in that: The method comprises: The terminal determines a first transmit power and a second transmit power; The first transmission power represents the power of sending the physical direct link feedback channel PSFCH on the common comb ruler; The second transmission power indicates the power of transmitting the PSFCH on a dedicated frequency domain resource block.

2. The method according to claim 1, characterized in that The first transmission power represents the total power of transmitting the PSFCH on one common comb, wherein the one common comb includes m comb physical resource blocks PRB, where m is equal to 10 or 11; The second transmission power represents the total power of sending PSFCH on K3 dedicated PRBs, and the value of K3 is any one of the following: 1, 2, 5.

3. The method according to claim 1 or 2, characterized in that: The sum of the first transmit power and the second transmit power is equal to a third transmit power, and the first transmit power is less than the second transmit power; The third transmission power indicates the total power for transmitting one PSFCH.

4. The method according to any one of claims 1 to 3, characterized in that The total power of all PSFCHs transmitted in one PSFCH opportunity is less than or equal to the first maximum transmission power.

5. The method according to any one of claims 1 to 4, characterized in that: At least one of the first transmit power, the second transmit power, and the third transmit power is determined by the terminal.

6. The method according to any one of claims 3 to 5, characterized in that The third transmission power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10 (2 μ ·M)+α PSFCH ·PL Among them, P PSFCH,one represents the third transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, M represents the sum of m comb PRBs and K3 dedicated PRBs, or M is a positive integer greater than or equal to 1.

7. The method according to any one of claims 1 to 5, characterized in that The second transmission power satisfies the following relationship: PSFCH,one =P O,PSFCH +10log 10 (2 μ ·K3)+α PSFCH ·PL Among them, P PSFCH,one represents the second transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, and PL represents the downlink path loss.

8. The method according to any one of claims 1 to 5 and 7, characterized in that: The first transmit power is determined based on a proportional factor, a first configured power, a number K3 of dedicated PRBs, a first coefficient, and a downlink path loss.

9. The method according to claim 8, characterized in that The first transmission power satisfies the following relationship: P' PSFCH,one =K[P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH ·PL] Among them, P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, K represents the proportional factor, and 0<K<1.

10. The method according to any one of claims 1 to 5 and 7, characterized in that: The first transmit power is determined based on a first offset, a first configured power, a number K3 of dedicated PRBs, a first coefficient, and a downlink path loss.

11. The method according to claim 10, characterized in that The first transmission power satisfies the following relationship: P' PSFCH,one =P O,PSFCH +10log 10 (2 μ ·m)+α PSFCH PL-β Among them, P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, β represents the first offset, and β>0.

12. The method according to any one of claims 1 to 5 and 7, characterized in that: The first transmit power is determined based on the second configured power, the second coefficient, the number K3 of dedicated PRBs, and the first coefficient.

13. The method according to claim 12, characterized in that The first transmission power satisfies the following relationship: P' PSFCH,one =P' O,PSFCH +10log 10 (2 μ ·m)+α' PSFCH ·PL Among them, P' PSFCH,one represents the first transmission power, P' O,PSFCH represents the second configuration power, α' PSFCH represents the second coefficient, and PL represents the downlink path loss.

14. The method according to any one of claims 1 to 5 and 7, characterized in that: The first transmit power is a preconfigured power value.

15. The method according to any one of claims 1 to 5 and 7, characterized in that: The first transmit power is determined based on the second offset, the third offset, the first coefficient, the number K3 of dedicated PRBs, the first configured power, and the downlink path loss.

16. The method according to claim 15, characterized in that The first transmission power satisfies the following relationship: P' PSFCH,one =(P O,PSFCH -a)+10log 10 (2 μ ·m)+(α PSFCH -b) PL Among them, P' PSFCH,one represents the first transmission power, P O,PSFCH represents the first configuration power, α PSFCH represents the first coefficient, PL represents the downlink path loss, a represents the second offset, and b represents the third offset.

17. The method according to any one of claims 1 to 16, characterized in that The method further comprises: The terminal receives first information, where the first information is used to indicate parameters used by the terminal to determine the first transmit power and the second transmit power.

18. The method according to claim 17, characterized in that The first information is used to indicate at least one of the following: First configuration power; The first coefficient; Scale factor; First offset; Second configuration power; The second coefficient; Second offset; The third offset; a first maximum transmit power; Second maximum transmit power.

19. The method according to claim 17 or 18, characterized in that The first information is carried in at least one of the following: Radio Resource Control Signaling RRC; Downlink control information DCI; Side link control information SCI.

20. The method according to any one of claims 1 to 19, characterized in that Within a bandwidth of 1 MHz MHZ, the total transmit power of one or more PSFCHs is less than or equal to a second maximum transmit power, and the second maximum transmit power is determined based on the maximum power spectral density value and the sum of the number of comb PRBs and dedicated PRBs occupied by the PSFCH within a bandwidth of 1 MHZ.

21. A method for determining power, characterized in that: The method comprises: The network device sends first information, where the first information is used to instruct the terminal to determine parameters used by the first transmit power and the second transmit power; The first transmission power represents the power of sending the physical direct link feedback channel PSFCH on the common comb ruler; The second transmission power indicates the power of transmitting the PSFCH on a dedicated resource block.

22. The method according to claim 21, characterized in that The first information is used to indicate at least one of the following: First configuration power; The first coefficient; Scale factor; First offset; Second configuration power; The second coefficient; Second offset; The third offset; a first maximum transmit power; Second maximum transmit power.

23. The method according to claim 21 or 22, characterized in that The first information is carried in at least one of the following: Radio Resource Control Signaling RRC; Downlink control information DCI.

24. A method for determining power, characterized in that: The method comprises: The network device sends first information to the terminal, where the first information is used to instruct the terminal to determine parameters used by the first transmit power and the second transmit power; The first transmission power represents the power of sending the physical direct link feedback channel PSFCH on the common comb ruler; the second transmission power represents the power of sending the PSFCH on the dedicated resource block; The terminal determines a first transmit power and a second transmit power.

25. A terminal, characterized in that: include: A processing module, configured to determine a first transmission power, wherein the first transmission power represents a power for transmitting a physical direct link feedback channel PSFCH on a common comb ruler; A second transmission power is determined, where the second transmission power represents a power for transmitting the PSFCH on the dedicated resource block.

26. A network device, characterized in that: include: The transceiver module is used to send the first information, wherein the first information is used to instruct the terminal to determine the parameters used for the first transmission power and the second transmission power; the first transmission power represents the power of sending the physical direct link feedback channel PSFCH on the common comb; the second transmission power represents the power of sending the PSFCH on the dedicated resource block.

27. A terminal, characterized in that: include: one or more processors; The processor is used to execute the power determination method according to any one of claims 1-20.

28. A network device, characterized in that: include: one or more processors; Wherein, the processor is used to execute the power determination method described in any one of claims 21-23.

29. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the power determination method according to any one of claims 1 to 20, and the network device is configured to implement the power determination method according to any one of claims 21 to 23.

30. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to perform the power determination method according to any one of claims 1-20, 22-23.

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