Communication method, terminal, base station, communication system, medium, and program product

Abstract

The embodiments of the present disclosure relate to a communication method, a terminal, a base station, a communication system, a medium, and a program product. The communication method can be applied to a terminal. The method comprises: on the basis of a first power control parameter associated with a first uplink beam, determining the transmission power of the first uplink beam, wherein the first uplink beam is an uplink beam sent by a terminal to an uplink multi-reception point. Thus, the embodiments of the present disclosure can realize power control for an uplink multi-reception point.

Description

Communication method, terminal, base station, communication system, medium and program product Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, terminal, base station, communication system, medium, and program product. Background Art

[0002] In mobile communication systems, when a terminal sends information to a base station via uplink transmission, it is necessary to control the uplink transmission power. In new radio (NR) systems, multi-transmission reception point (MTRP) uplink channel transmission has been introduced, allowing communication with terminals via multiple TRPs. However, determining the uplink transmission power of each TRP has become a pressing issue.

[0003] Summary of the Invention

[0004] When a terminal performs uplink transmission, since the terminal can only receive a path loss-reference signal (PL-RS) from a base station, the terminal cannot accurately implement power control when transmitting to different uplink reception points.

[0005] The embodiments of the present disclosure propose a communication method, terminal, base station, communication system, medium and program product, which can determine the transmission power of the beam sent by the terminal to the TRP.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal. The method includes: determining the transmission power of the first uplink beam based on a first power control parameter associated with the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

[0007] According to the second aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a base station. The method includes: sending a second power control parameter, the second power control parameter is used to determine a first power control parameter associated with a first uplink beam, the first power control parameter is used to determine the transmission power of the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

[0008] According to the third aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a processing module configured to determine the transmission power of a first uplink beam based on a first power control parameter associated with the first uplink beam, the first uplink beam being an uplink beam sent by the terminal to multiple uplink receiving points.

[0009] According to the fourth aspect of an embodiment of the present disclosure, a base station is proposed, including: a transceiver module configured to send a second power control parameter, wherein the second power control parameter is used to determine a first power control parameter associated with a first uplink beam, the first power control parameter is used to determine the transmission power of the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

[0010] According to a fifth aspect of the embodiments of the present disclosure, a terminal is provided, comprising: at least one processor and a memory storing instructions. When the instructions are executed by the terminal, the terminal implements the communication method as described in the first aspect.

[0011] According to a sixth aspect of the embodiments of the present disclosure, a base station is provided, comprising: at least one processor and a memory storing instructions. When the instructions are executed by the base station, the base station implements the communication method as described in the second aspect.

[0012] According to a seventh aspect of the embodiments of the present disclosure, a communication system is provided. The communication system includes a terminal and a base station. The terminal is configured to execute the communication method described in the first aspect. The base station is configured to execute the communication method described in the second aspect.

[0013] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in the first aspect or the second aspect.

[0014] According to a ninth aspect of the embodiments of the present disclosure, a computer program product is provided, which, when executed by a communication device, causes the communication device to execute the communication method as described in the first or second aspect.

[0015] According to a tenth aspect of the embodiments of the present disclosure, a computer program is provided, which, when executed on a computer, causes the computer to execute the communication method according to the first aspect or the second aspect.

[0016] According to an eleventh aspect of the embodiments of the present disclosure, a chip or a chip system is provided. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method described in the first aspect or the second aspect.

[0017] The technical solution provided by the embodiments of the present disclosure can achieve power control for multiple uplink receiving points.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not constitute limitations on the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] FIG1A is a schematic diagram showing an architecture of a communication system according to an embodiment of the present disclosure.

[0021] FIG1B is a schematic diagram showing a UL dense deployment according to an embodiment of the present disclosure.

[0022] FIG1C is a schematic diagram showing a UL dense deployment according to an embodiment of the present disclosure.

[0023] FIG2 is an exemplary interaction diagram of the communication method provided by an embodiment of the present disclosure.

[0024] FIG3A is a flow chart of a method for executing communication on a terminal side according to an embodiment of the present disclosure.

[0025] FIG3B is a flow chart of a communication method performed on a base station side according to an embodiment of the present disclosure.

[0026] FIG4 is another schematic flow chart of a communication method executed on a terminal side according to an embodiment of the present disclosure.

[0027] FIG5A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

[0028] FIG5B is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

[0029] FIG6A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0030] FIG6B is a schematic structural diagram of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] The embodiments of the present disclosure provide a communication method, a terminal, a base station, a communication system, a medium, and a program product.

[0032] In a first aspect, an embodiment of the present disclosure proposes a communication method executed by a terminal, the method comprising: determining the transmission power of the first uplink beam based on a first power control parameter associated with the first uplink beam, the first uplink beam being an uplink beam sent by the terminal to multiple uplink receiving points.

[0033] In the embodiments of the present disclosure, power control can be implemented for uplink multiple reception points.

[0034] In some embodiments, the uplink multiple reception points include a base station and at least one reception point, and the reception point is associated with the base station.

[0035] In some embodiments, the first power control parameter includes at least one of the following: path loss; open-loop power control parameters, the open-loop power control parameters include: the first uplink transmit power associated with the first uplink beam and the first path loss compensation factor; closed-loop power control parameters, the closed-loop power control parameters include the closed-loop control step associated with the first uplink beam; wherein the path loss is determined based on the first path loss reference signal associated with the first beam, and the first beam includes a downlink beam between the terminal and a single downlink receiving point or an uplink beam between the terminal and one of multiple uplink receiving points.

[0036] In some embodiments, the first uplink beam is indicated by a first transmission configuration indication state configured by the base station for the terminal.

[0037] In some embodiments, the first transmission configuration indication state includes at least one of the following: a downlink transmission configuration indication state and at least one uplink transmission configuration indication state; a joint transmission configuration indication state and at least one uplink transmission configuration indication state; wherein, at least one uplink transmission configuration indication state is used to indicate the first uplink beam.

[0038] In some embodiments, the first uplink transmit power is configured by the base station for the first uplink beam; and the first path loss compensation factor is configured by the base station for the first uplink beam.

[0039] In some embodiments, the first uplink transmission power is configured by the base station for the first uplink beam; the first path loss compensation factor is determined by the terminal, and the value of the first path loss compensation factor is less than the value of the second path loss compensation factor configured by the base station for the first uplink beam.

[0040] In some embodiments, the method also includes at least one of the following: determining a first path loss compensation factor based on a preset first offset and a path loss compensation factor associated with the first downlink beam, wherein the first offset is the offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is a beam sent by the base station to the terminal; when the first downlink beam is not configured with an associated path loss compensation factor, determining the preset path loss compensation factor as the first path loss compensation factor; associating the first uplink beam with a third path loss compensation factor, and determining the third path loss compensation factor as the first path loss compensation factor, and the third path loss compensation factor is the path loss compensation factor configured by the base station for other uplink beams.

[0041] In some embodiments, the method further includes: determining a first path loss offset associated with a first uplink beam based on a mapping relationship between the second beam and the path loss offset, where the first uplink beam is at least one of the second beams; and determining the path loss based on the first path loss reference signal and the first path loss offset.

[0042] In some embodiments, the second beam is indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam is indicated by an activated transmission configuration indication state; or, the uplink beam is indicated by a scheduled transmission configuration indication state.

[0043] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner, and the closed-loop control step size includes at least one of -3 and 5. In some embodiments, the closed-loop control step size also includes at least one of -1, 0, 1, and 3.

[0044] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner, and the closed-loop control step size includes at least one of -6, 6, -7, and 8. In some embodiments, the closed-loop control step size also includes at least one of -4, -1, 1, and 4.

[0045] In the second aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a base station, and the method includes: sending a second power control parameter, the second power control parameter is used to determine a first power control parameter associated with a first uplink beam, the first power control parameter is used to determine the transmission power of the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

[0046] In an embodiment of the present disclosure, the base station sends a second power control parameter, so that the terminal determines the first power control parameter based on the second power control parameter, thereby determining the transmission power of the first uplink beam, and power control can be achieved for multiple uplink receiving points.

[0047] In some embodiments, the uplink multiple reception points include a base station and at least one reception point, and the access point is associated with the base station.

[0048] In some embodiments, the first power control parameter includes at least one of the following: path loss and open-loop power control parameters, the open-loop power control parameters include: the first uplink transmit power associated with the first uplink beam and the first path loss compensation factor; closed-loop power control parameters, the closed-loop power control parameters include the closed-loop control step associated with the first uplink beam; wherein the path loss is determined based on the first path loss reference signal associated with the first beam, and the first beam includes a downlink beam between the terminal and a single downlink receiving point or an uplink beam between the terminal and one of multiple uplink receiving points.

[0049] In some embodiments, the first uplink beam is indicated by a first transmission configuration indication state configured by the base station for the terminal.

[0050] In some embodiments, the first transmission configuration indication state includes at least one of the following: a downlink transmission configuration indication state and at least one uplink transmission configuration indication state; a joint transmission configuration indication state and at least one uplink transmission configuration indication state; wherein, at least one uplink transmission configuration indication state is used to indicate the first uplink beam.

[0051] In some embodiments, the first uplink transmit power is configured by the base station for the first uplink beam; and the first path loss compensation factor is configured by the base station for the first uplink beam.

[0052] In some embodiments, the first uplink transmission power is configured by the base station for the first uplink beam; the first path loss compensation factor is determined by the terminal, and the value of the first path loss compensation factor is less than the value of the second path loss compensation factor configured by the base station for the first uplink beam.

[0053] In some embodiments, the method also includes: sending first information, the first information is used to indicate a preset first offset and a path loss compensation factor associated with the first downlink beam, wherein the first offset and the path loss compensation factor associated with the first downlink beam are used to determine the first path loss compensation factor, the first offset is the offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is a beam sent by the base station to the terminal.

[0054] In some embodiments, the method further includes: sending second information, wherein the second information is used to indicate a mapping relationship between the second beam and the path loss offset, and the mapping relationship between the second beam and the path loss offset is used to determine a first path loss offset associated with a first uplink beam, and the first uplink beam is at least one of the second beams; and determining the path loss based on the first path loss reference signal and the first path loss offset.

[0055] In some embodiments, the second beam is indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam is indicated by an activated transmission configuration indication state; or, the second beam is indicated by a scheduled transmission configuration indication state.

[0056] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner, and the closed-loop control step size includes at least one of -3 and 5. In some embodiments, the closed-loop control step size also includes at least one of -1, 0, 1, and 3.

[0057] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner, and the closed-loop control step size includes at least one of -6, 6, -7, and 8. In some embodiments, the closed-loop control step size also includes at least one of -4, -1, 1, and 4.

[0058] In the third aspect, an embodiment of the present disclosure proposes a terminal, including: a processing module, configured to: determine the transmission power of the first uplink beam based on a first power control parameter associated with the first uplink beam, the first uplink beam being an uplink beam sent by the terminal to multiple uplink receiving points.

[0059] In some embodiments, the uplink multiple reception points include a base station and at least one reception point, and the reception point is associated with the base station.

[0060] In some embodiments, the first power control parameter includes at least one of the following: path loss; open-loop power control parameters, the open-loop power control parameters include: the first uplink transmit power associated with the first uplink beam and the first path loss compensation factor; closed-loop power control parameters, the closed-loop power control parameters include the closed-loop control step associated with the first uplink beam; wherein the path loss is determined based on the first path loss reference signal associated with the first beam, and the first beam includes a downlink beam between the terminal and a single downlink receiving point or an uplink beam between the terminal and one of multiple uplink receiving points.

[0061] In some embodiments, the first uplink beam is indicated by a first transmission configuration indication state configured by the base station for the terminal.

[0062] In some embodiments, the first transmission configuration indication state includes at least one of the following: a downlink transmission configuration indication state and at least one uplink transmission configuration indication state; a joint transmission configuration indication state and at least one uplink transmission configuration indication state; wherein, at least one uplink transmission configuration indication state is used to indicate the first uplink beam.

[0063] In some embodiments, the first uplink transmit power is configured by the base station for the first uplink beam, and the first path loss compensation factor is configured by the base station for the first uplink beam.

[0064] In some embodiments, the first uplink transmission power is configured by the base station for the first uplink beam; the first path loss compensation factor is determined by the terminal, and the value of the first path loss compensation factor is less than the value of the second path loss compensation factor configured by the base station for the first uplink beam.

[0065] In some embodiments, the processing module is further configured to process at least one of the following: determining a first path loss compensation factor based on a preset first offset and a path loss compensation factor associated with the first downlink beam, wherein the first offset is the offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is a beam sent by the base station to the terminal; when the first downlink beam is not configured with an associated path loss compensation factor, determining the preset path loss compensation factor as the first path loss compensation factor; associating the first uplink beam with a third path loss compensation factor, and determining the third path loss compensation factor as the first path loss compensation factor, and the third path loss compensation factor is the path loss compensation factor configured by the base station for other uplink beams.

[0066] In some embodiments, the processing module is further configured to: determine a first path loss offset associated with a first uplink beam based on a mapping relationship between the second beam and the path loss offset, where the first uplink beam is at least one of the second beams; and determine the path loss based on the first path loss reference signal and the first path loss offset.

[0067] In some embodiments, the second beam is indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam is indicated by an activated transmission configuration indication state; or, the uplink beam is indicated by a scheduled transmission configuration indication state.

[0068] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner, and the closed-loop control step size includes at least one of -3 and 5. In some embodiments, the closed-loop control step size also includes at least one of -1, 0, 1, and 3.

[0069] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner, and the closed-loop control step size includes at least one of -6, 6, -7, and 8. In some embodiments, the closed-loop control step size also includes at least one of -4, -1, 1, and 4.

[0070] In the fourth aspect, an embodiment of the present disclosure proposes a base station, including: a transceiver module, configured to: send a second power control parameter, the second power control parameter is used to determine a first power control parameter associated with a first uplink beam, the first power control parameter is used to determine the transmission power of the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

[0071] In some embodiments, the uplink multiple reception points include a base station and at least one reception point, and the access point is associated with the base station.

[0072] In some embodiments, the first power control parameter includes at least one of the following: path loss; open-loop power control parameters, the open-loop power control parameters include: the first uplink transmit power associated with the first uplink beam and the first path loss compensation factor; closed-loop power control parameters, the closed-loop power control parameters include the closed-loop control step associated with the first uplink beam; wherein the path loss is determined based on the first path loss reference signal associated with the first beam, and the first beam includes a downlink beam between the terminal and a single downlink receiving point or an uplink beam between the terminal and one of multiple uplink receiving points.

[0073] In some embodiments, the first uplink beam is indicated by a first transmission configuration indication state configured by the base station for the terminal.

[0074] In some embodiments, the first transmission configuration indication state includes at least one of the following: a downlink transmission configuration indication state and at least one uplink transmission configuration indication state; a joint transmission configuration indication state and at least one uplink transmission configuration indication state; wherein, at least one uplink transmission configuration indication state is used to indicate the first uplink beam.

[0075] In some embodiments, the first uplink transmit power is configured by the base station for the first uplink beam; and the first path loss compensation factor is configured by the base station for the first uplink beam.

[0076] In some embodiments, the first uplink transmission power is configured by the base station for the first uplink beam; the first path loss compensation factor is determined by the terminal, and the value of the first path loss compensation factor is less than the value of the second path loss compensation factor configured by the base station for the first uplink beam.

[0077] In some embodiments, the transceiver module is further configured to: send first information, where the first information is used to indicate a preset first offset and a path loss compensation factor associated with the first downlink beam, wherein the first offset and the path loss compensation factor associated with the first downlink beam are used to determine the first path loss compensation factor, and the first offset is the offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is a beam sent by the base station to the terminal.

[0078] In some embodiments, the transceiver module is further configured to: send second information, wherein the second information is used to indicate a mapping relationship between the second beam and the path loss offset, and the mapping relationship between the second beam and the path loss offset is used to determine a first path loss offset associated with the first uplink beam, and the first uplink beam is at least one of the second beams; and determine the path loss based on the first path loss reference signal and the first path loss offset.

[0079] In some embodiments, the second beam is indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam is indicated by an activated transmission configuration indication state; or, the second beam is indicated by a scheduled transmission configuration indication state.

[0080] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner, and the closed-loop control step size includes at least one of -3 and 5. In some embodiments, the closed-loop control step size also includes at least one of -1, 0, 1, and 3.

[0081] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner, and the closed-loop control step size includes at least one of -6, 6, -7, and 8. In some embodiments, the closed-loop control step size also includes at least one of -4, -1, 1, and 4.

[0082] In a fifth aspect, embodiments of the present disclosure provide a terminal. The terminal includes at least one processor and a memory storing instructions. When the instructions are executed by the terminal, the terminal implements the communication method described in the first aspect and possible implementations thereof.

[0083] In a sixth aspect, embodiments of the present disclosure provide a base station. The base station includes at least one processor and a memory storing instructions. When the instructions are executed by the base station, the base station implements the communication method described in the second aspect and possible implementations thereof.

[0084] In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and a base station. The terminal is configured to execute the communication method described in the first aspect and possible implementations thereof. The base station is configured to execute the communication method described in the second aspect and possible implementations thereof.

[0085] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in the first aspect, the second aspect and possible implementations thereof.

[0086] In a ninth aspect, an embodiment of the present disclosure provides a computer program product. When the program product is executed by a communication device, the communication device executes the communication method as described in the first aspect, the second aspect, and possible implementations thereof.

[0087] In a tenth aspect, an embodiment of the present disclosure provides a computer program. When the computer program is executed on a computer, the computer executes the communication method as described in the first aspect, the second aspect, and possible implementations thereof.

[0088] In an eleventh aspect, embodiments of the present disclosure provide a chip or a chip system. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in the first aspect, the second aspect, and possible implementations thereof.

[0089] It is understandable that the above-mentioned terminals, base stations, communication systems, storage media, computer program products, computer programs, chips, or chip systems are all used to perform 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.

[0090] The present disclosure provides a communication method, terminal, base station, communication system, medium, and program product. In some embodiments, the terms communication method, information processing method, and power determination method are interchangeable. The terms terminal, base station, communication device, information processing device, and power determination device are interchangeable. The terms information processing system and communication system are interchangeable.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0096] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," and the like can be used interchangeably.

[0097] 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, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0098] 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.

[0099] 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 the use of prefixes should not constitute unnecessary restrictions. 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0105] In some embodiments, the terms "network devices", "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access network node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femtocell", "picocell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0110] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0111] 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.

[0112] As shown in FIG1A , FIG1A is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. The communication system 100 includes a terminal 101 and a network device 102 .

[0113] 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.

[0114] In some embodiments, the network device 102, for example, is a node or device that accesses a terminal to a wireless network, and may include at least one of an evolved node B (eNB), a next generation eNB (ng-eNB), a next generation node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (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 an access node in a Wi-Fi system, but is not limited thereto.

[0115] In some embodiments, the technical solution of the present disclosure can be applied to the open radio access network (Open RAN) architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0116] In some embodiments, the 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.

[0117] 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. Ordinary technicians in this field can know 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.

[0118] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or some of the entities in the communication system 100 , but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system 100 may include all or some of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities are arbitrary. 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.

[0119] The embodiments of the present disclosure may be applied to long term evolution (LTE), LTE-advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, international mobile telecommunications-advanced (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 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (reg 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).

[0120] Research on multi-TRP transmission will continue to enhance uplink transmission. This research focuses on multi-TRP deployment scenarios involving a single downlink transmission reception point (STRP) and multiple uplink transmission reception points (MTRP). Deploying multiple uplink reception points in this scenario can further improve uplink coverage and throughput at a lower network deployment cost, while also avoiding complex network planning and downlink interference management coordination issues.

[0121] FIG1B is a schematic diagram of a UL dense deployment according to an embodiment of the present disclosure. As shown in FIG1B , by deploying a heterogeneous network, multiple uplink reception points can be implemented to improve uplink (UL) coverage and throughput. Since the rated power of the base station and the micro node is different, the UE can receive downlink (DL) transmissions from the base station, and the UE can also transmit UL to the base station to maximize UL throughput. The uplink multiple reception points may include a base station and at least one micro node. In some embodiments, the micro node may also be referred to as a TRP, a reception point, etc.

[0122] In some embodiments, micro nodes can reduce or even disable DL transmissions. Unlike small cells, these nodes are used only for uplink reception. Figure 1B illustrates UL and DL transmissions using two UEs, one base station, and two uplink reception points as an example.

[0123] Figure 1C is a schematic diagram illustrating a dense UL deployment according to an embodiment of the present disclosure. As shown in Figure 1C , deploying a heterogeneous network enables multiple uplink reception points to improve UL coverage and throughput. A UE can receive DL transmissions from a base station, and a UE can also transmit UL to an uplink reception point. Figure 1C illustrates UL and DL using two UEs, one base station, and four TRPs as an example.

[0124] Figure 2 is an exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiment of the present disclosure relates to a communication method, which is executed by the above-mentioned communication system 100. The communication method includes steps S2101 to S2103.

[0125] In the disclosed embodiment, the uplink communication system 100 employs an uplink MTRP. In one example, the uplink MTRP includes a base station and at least one receiving point (ie, TRP), which is associated with the base station. In one example, the at least one receiving point is located within the downlink coverage of the base station.

[0126] In step S2101, the base station sends a second power control parameter.

[0127] In some embodiments, the terminal may receive a second power control parameter.

[0128] In some embodiments, a base station is a type of network device.

[0129] In some embodiments, the second power control parameter may be a power control parameter configured by the base station for the first uplink beam.

[0130] In some embodiments, the second power control parameter may include an open-loop power control parameter and / or a closed-loop power control parameter. In some embodiments, the open-loop power control parameter included in the second power control parameter may be used for open-loop control of the terminal.

[0131] In some embodiments, the open-loop power control parameters included in the second power control parameters may include at least one of the following: the target uplink transmit power corresponding to the first uplink beam (denoted as P0), the path loss compensation factor corresponding to the first uplink beam (denoted as α), and the path loss reference signal associated with the first beam (denoted as PL-RS).

[0132] In some embodiments, the first beam may include a downlink beam between the terminal and a single downlink reception point, or an uplink beam between the terminal and one of multiple uplink reception points. In this case, the first beam may be an uplink beam, or the first beam may be a downlink beam.

[0133] In some embodiments, the PL-RS associated with the first beam may be a path loss reference signal associated with the first downlink beam. Here, the first downlink beam is a downlink beam between the terminal and the base station.

[0134] In some embodiments, the PL-RS associated with the first beam may be a path loss reference signal associated with the second uplink beam. Here, the second uplink beam is an uplink beam in the first uplink beam between the terminal and the uplink MTRP.

[0135] In some embodiments, the first uplink beam may be an uplink beam sent by the terminal to the uplink MTRP.

[0136] In some embodiments, the first uplink beam may be indicated by a first transmission configuration indication state (TCI state) configured by the base station for the terminal.

[0137] In some embodiments, the first TCI state may include at least one of the following: a DL TCI state and at least one UL TCI state; a joint TCI state and at least one uplink TCI state.

[0138] In some embodiments, at least one uplink TCI state may be used to indicate a first uplink beam.

[0139] In some embodiments, the first TCI state may be a separate TCI state or a hybrid TCI state.

[0140] In some embodiments, there are two cases for separate TCI states:

[0141] Case 1, STRP: A TCI state code point can include a DL TCI state and a UL TCI state;

[0142] Case 2, MTRP: A TCI state code point may include one DL TCI state and at least two UL TCI states.

[0143] In some embodiments, the Hybrid TCI state may include: a joint TCI state and an additionally indicated UL TCI state. In some embodiments, the Hybrid TCI state may also be understood as an enhanced form of the joint TCI state.

[0144] In some embodiments, the open-loop power control parameter included in the second power control parameter may further include at least one of the following: first information and second information.

[0145] In some embodiments, the first information may be used to indicate a preset first offset and a path loss compensation factor associated with the first downlink beam.

[0146] In some embodiments, the first offset and the path loss compensation factor associated with the first downlink beam can be used to determine the first path loss compensation factor. In this case, the first offset is the offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is the beam sent by the base station to the terminal.

[0147] In some embodiments, the second information may be used to indicate a mapping relationship between the second beam and the path loss offset. In this case, the mapping relationship between the second beam and the path loss offset may be used to determine a first path loss offset associated with the first uplink beam, and to determine the path loss based on the first path loss reference signal and the first path loss offset. Here, the first uplink beam is at least one of the second beams.

[0148] In some embodiments, different PL offset values ​​corresponding to different PL-RSs can be configured for each UL TCI state via RRC. In this case, the determined path loss can be applied to the physical downlink shared channel (PUSCH), sounding reference signal (SRS), and physical uplink control channel (PUCCH).

[0149] In some embodiments, the PL obtained from the PL-RS associated with the DL TCI state and / or joint TCI state can be used as a path loss reference value. The path loss corresponding to the TCI state of multiple uplink reception points can be determined by the following formula: PL′=PL-PL offset (1)

[0150] Here, the path loss corresponding to the TCI state of the uplink multiple receiving points is PL′, PL offset It can be the PL offset of the PL-RS associated with the DL TCI state and / or joint TCI state corresponding to the TCI state of uplink multiple reception points, where PL is a path loss reference value.

[0151] In some embodiments, the PL offset may be determined by at least one of the following methods:

[0152] Method 1: Static configuration: The PL offset can be calculated based on the site location and the estimated UE location, or obtained through a predefined table (e.g., a table corresponding to the mapping relationship between the second beam indicated by the second information and the path loss offset);

[0153] Method 2: Based on the change of UE location, the TCI state corresponding to the activation state of the DL PL-RS or the PL offset configuration value related to the scheduling request indicator (SRI) can be updated through MAC-CE;

[0154] Mode 3: The PL offset corresponding to different uplink UL TCI states indicated by the DCI can be used for power control calculation in uplink transmission.

[0155] In some embodiments, the second beam may be indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam may be indicated by an activated transmission configuration indication state; or, the second beam may be indicated by a scheduled transmission configuration indication state.

[0156] In some embodiments, the TCI state resource pool may be an optional TCI state resource pool configured by radio resource control (RRC) or a reconfigured reference signal index set. Here, the TCI state resource pool may be used to describe beam characteristics.

[0157] In some embodiments, for an uplink data channel, the maximum number of TCI states supported by the TCI state resource pool may be 64; for a downlink data channel, the maximum number of TCI states supported by the TCI state resource pool may be 128.

[0158] In some embodiments, media access control-control element (MAC-CE) signaling can be used to activate or deactivate TCI states. In this case, the activated reference signal indices are dynamically combined and configured into the associated TCI or reference signal set.

[0159] In some embodiments, the base station may indicate a TCI state code point through a TCI state indication field in DL downlink control information (DCI) signaling, for example, a maximum of 8 TCI state filling code points may be selected.

[0160] In some embodiments, the open-loop power control parameters included in the second power control parameters may be carried in RRC signaling or MAC-CE signaling.

[0161] In some embodiments, the path loss may be determined based on a first path loss reference signal associated with the first beam. In this case, the first beam may include a downlink beam between the terminal and a single downlink reception point, or an uplink beam between the terminal and one of multiple uplink reception points.

[0162] In some embodiments, the base station may configure a set of PL offset candidate values ​​through RRC, and configure different PL offsets corresponding to the PL-RS associated with the DL TCI state or joint TCI state for one or more UL TCI states contained in each TCI state code point activated or updated in the MAC-CE.

[0163] In some embodiments, the closed-loop power control parameter included in the second power control parameter may be used for closed-loop control of the terminal.

[0164] In some embodiments, the closed-loop power control parameter included in the second power control parameter may include a transmission power control (TPC) value.

[0165] In some embodiments, the closed-loop power control parameters included in the second power control parameters may be carried in DCI signaling.

[0166] In some embodiments, the second power control parameter may be used to determine the first power control parameter.

[0167] In some embodiments, the open-loop power control parameter and / or the closed-loop power control parameter included in the second power control parameter may be used to determine the first power control parameter.

[0168] In step S2102, the terminal determines a first power control parameter.

[0169] In some embodiments, the terminal may determine the first power control parameter based on the second power control parameter.

[0170] In some embodiments, the second power control parameter may include an open-loop power control parameter and / or a closed-loop power control parameter.

[0171] In some embodiments, the terminal may determine the second power parameter as the first power parameter.

[0172] In some embodiments, the first power control parameter may include at least one of the following: path loss, an open-loop power control parameter, and a closed-loop power control parameter.

[0173] In some embodiments, the first power control parameter may be an open-loop power control parameter included in the first power control parameter.

[0174] In some embodiments, the open-loop power control parameters included in the first power control parameter may include: a first uplink transmit power associated with a first uplink beam and a first path loss compensation factor.

[0175] In some embodiments, the first uplink transmit power may be configured by the base station for the first uplink beam.

[0176] In some embodiments, the terminal may determine the target uplink transmit power corresponding to the first uplink beam as the first uplink transmit power associated with the first uplink beam, determine the path loss compensation factor corresponding to the first uplink beam as the first path loss compensation factor associated with the first uplink beam, and determine the path loss based on a path loss reference signal associated with the first beam. In this case, the first uplink transmit power may be configured by the base station for the first uplink beam, and the first path loss compensation factor may be configured by the base station for the first uplink beam.

[0177] In some embodiments, the terminal may further determine the first path loss compensation factor according to at least one of the following three methods. In this case, the value of the first path loss compensation factor is less than the value of the second path loss compensation factor configured by the base station for the first uplink beam, and the process of determining the first path loss compensation factor is not applicable to PUCCH, but is applicable to PUSCH and SRS.

[0178] Method 1: The terminal may determine the first path loss compensation factor according to the first information.

[0179] In some embodiments, the terminal may determine the first path loss compensation factor based on the preset first offset indicated by the first information and the path loss compensation factor associated with the first downlink beam.

[0180] Mode 2: When the first downlink beam is not configured with an associated path loss compensation factor, the terminal may determine a preset path loss compensation factor as the first path loss compensation factor. In this case, the preset path loss compensation factor may be configured by the base station or a predefined default value of α.

[0181] Method 3: The terminal can associate the first uplink beam with the third path loss compensation factor, and determine the third path loss compensation factor as the first path loss compensation factor. The third path loss compensation factor is the path loss compensation factor configured by the base station for other uplink beams.

[0182] In some embodiments, the third path loss compensation factor may be a path loss compensation factor configured by the base station for other uplink beams. In this case, the other uplink beams are uplink beams of the base station other than the first uplink beam.

[0183] In some embodiments, the terminal may determine a first path loss offset associated with the first uplink beam based on a mapping relationship between the second beam and the path loss offset indicated by the second information, and determine the path loss based on the first path loss reference signal and the first path loss offset. In this case, the first uplink beam is at least one of the second beams. In this case, the process for determining the path loss is applicable to the PUCCH, PUSCH, and SRS.

[0184] In some embodiments, the path loss corresponding to the first path loss reference signal may be subtracted from the first path loss offset to obtain the path loss.

[0185] In some embodiments, the second power control parameter includes a closed-loop power control parameter, such as a TPC value, associated with a closed-loop control step size associated with the first uplink beam.

[0186] In some embodiments, the closed-loop power control parameter included in the first power control parameter may be determined based on a TPC value.

[0187] In some embodiments, the closed-loop power control parameter included in the first power control parameter may include a closed-loop control step size associated with the first uplink beam.

[0188] In some embodiments, the first power control parameter may be a closed-loop power control parameter included in the first power control parameter.

[0189] In some embodiments, the terminal may determine the closed-loop power control parameter included in the first power control parameter according to the TPC value, that is, the closed-loop control step size associated with the first uplink beam.

[0190] In some embodiments, the closed-loop power control parameter included in the first power control parameter can be used by the terminal to perform closed-loop power control in an accumulation manner. In one example, the closed-loop control step size includes at least one of -3 and 5. In another example, the closed-loop control step size also includes at least one of -1, 0, 1, and 3.

[0191] In some embodiments, the closed-loop power control parameter included in the first power control parameter can be used by the terminal to perform closed-loop power control using an absolute value. In one example, the closed-loop control step size includes at least one of -6, 6, -7, and 8. In another example, the closed-loop control step size also includes at least one of -4, -1, 1, and 4.

[0192] In step S2103, the terminal determines the transmit power of the first uplink beam according to the first power control parameter.

[0193] In some embodiments, the terminal may determine the transmit power of the first uplink beam based on a first power control parameter associated with the first uplink beam.

[0194] In some embodiments, the terminal may determine the transmit power of the first uplink beam based on the path loss and open-loop power control parameters and / or closed-loop power control parameters included in the first power control parameters.

[0195] In some embodiments, the terminal may determine the transmit power of the first uplink beam according to the open-loop power control parameter included in the first power control parameter.

[0196] In some embodiments, the open-loop power control parameters included in the first power control parameters may be the first uplink transmit power associated with the first uplink beam and the first path loss compensation factor. Then, after obtaining the path loss and the open-loop power control parameters, the terminal may determine the transmit power of the first uplink beam based on the path loss, the first uplink transmit power associated with the first uplink beam and the first path loss compensation factor.

[0197] In some embodiments, the terminal may determine the transmit power of the first uplink beam based on the closed-loop power control parameter included in the first power control parameter.

[0198] In some embodiments, the terminal may determine the transmit power of the first uplink beam according to the closed-loop control step size associated with the first uplink beam included in the first power control parameter.

[0199] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner, and the terminal can determine the transmit power of the first uplink beam according to the value of the closed-loop control step in this manner.

[0200] In some embodiments, the closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner, and the terminal can determine the transmit power of the first uplink beam according to the value of the closed-loop control step in this manner.

[0201] 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.

[0202] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0203] 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.

[0204] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0205] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0206] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2101 may be implemented as an independent embodiment. For example, step S2103 may be implemented as an independent embodiment. For example, the combination of steps S2102 and S2103 may be implemented as an independent embodiment. However, this is not limited to these.

[0207] In some embodiments, steps S2102 and S2103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0208] In some embodiments, steps S2101 and S2102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0209] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0210] FIG3A is a flow chart of a communication method performed by a terminal according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to a communication method. The communication method includes steps S3101 to S3103.

[0211] In step S3101, a second power control parameter is obtained.

[0212] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0213] In step S3102, a first power control parameter is determined.

[0214] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0215] In step S3103, the transmit power of the first uplink beam is determined according to the first power control parameter.

[0216] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0217] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3103 may be implemented as an independent embodiment, but is not limited thereto.

[0218] In some embodiments, step S3101 and step S3102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0219] FIG3B is a flow chart of a communication method performed by a base station according to an embodiment of the present disclosure. As shown in FIG3B , the present disclosure embodiment relates to a communication method. The communication method includes step S3201.

[0220] In step S3201, a second power control parameter is sent.

[0221] The optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2 and other related parts of the embodiment involved in Figure 2, which will not be repeated here.

[0222] FIG4 is another flow chart illustrating a communication method executed by a terminal side according to an embodiment of the present disclosure. As shown in FIG4 , an embodiment of the present disclosure relates to a communication method. The communication method includes step S4101.

[0223] In step S4101, the transmit power of the first uplink beam is determined according to the first power control parameter.

[0224] The optional implementation of step S4101 can refer to the optional implementation of step S3103 in Figure 3A and other related parts of the embodiment involved in Figure 3A, which will not be repeated here.

[0225] In some embodiments, PL-RS associated with DL TCI state / joint TCI state is used for TCI state associated transmission of all uplink reception points.

[0226] In some embodiments, default power control parameter configuration values ​​corresponding to different UL TCI states are used.

[0227] In some embodiments, for uplink reception point UL TCI states corresponding to different (P0, α), a lower α value and a larger step size are used.

[0228] In some embodiments, when the α value of the DL TCI state / joint TCI state configuration indicated in the DCI is X, and when the α value of the UL TCI state configuration is not greater than X, the configured value is used, otherwise the following is performed:

[0229] Option 1: Configure one or a set of α offset values ​​for downlink alpha and UL TCI state through network configuration to obtain α values ​​corresponding to different UL TCI states;

[0230] When there is no configured value for option 2, DL TCI state / joint TCI state, the configured or predefined α default value is used;

[0231] Option 3: Re-associate different (P0, α) for different UL TCI states.

[0232] In some embodiments, the above adjustment method is not applicable to PUCCH.

[0233] In some embodiments, the range of TPC adjustment values ​​is redefined, requiring a larger step size configuration.

[0234] In some embodiments, the TPC bit indication is also extended.

[0235] In some embodiments, the mapping of the TPC command field in the DCI format scheduling PUSCH transmission, or in DCI format 2_2 with CRC scrambled by TPC-PUSCH-RNTI, or in DCI format 2_3, to absolute and cumulative values: δPUSCH,b,f,c or δ SRS,b,f,c 's mapping.

[0236] In some embodiments, the absolute and cumulative values ​​are as shown in Table 1:

[0237] Table 1

[0238] In some embodiments, the absolute and cumulative values ​​of the enhancements are as shown in Table 2 below:

[0239] Table 2

[0240] In some embodiments, the indicating method includes the following:

[0241] Mode 1: PUSCH is indicated by DCI0_1 / 0_2, PUCCH is indicated by DCI1_1 / 1_2, and different independent TPC transmit power control indication fields are used during MTRP;

[0242] Mode 2: PUSCH / PUCCH is indicated by DCI2_2 and continuous TPC is indicated.

[0243] Mode 3: Joint indication: predefined code points contain corresponding one or more TPC commands or power adjustment values, which can save signaling overhead.

[0244] In some embodiments, different PL offset values ​​corresponding to different PL RSs are associated with each UL TCI state configuration via RRC. When the PL RS associated with the DL TCI state / joint TCI state is used to obtain the PL, the PL' corresponding to the TCI state of the uplink reception point is equal to PL-PL offset.

[0245] In some embodiments, the PL offset may be determined as follows:

[0246] Method 1: Static configuration: The PL offset can be calculated based on the site location and the estimated UE location or obtained from a predefined table;

[0247] Method 2: Based on the change of the terminal's location, the PL offset configuration value corresponding to certain TCI states of the corresponding DL PL RS can be updated through MAC-CE;

[0248] Mode 3: Apply corresponding PL offset configuration values ​​to uplink transmissions corresponding to different uplink UL TCI states indicated by DCI for power control calculation.

[0249] In some embodiments, a set of PL offset candidate values ​​is configured through RRC, and different PL offsets corresponding to the PL RS associated with the DL TCI state / joint TCI state are configured for one or more UL TCI states included in each TCI state code point activated / updated in the MAC-CE.

[0250] In some embodiments, the configuration method may be:

[0251]

[0252] 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 base station in any of the above methods.

[0253] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions, and 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, and 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), and the functions of some or all of the above units or modules are realized 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, which 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 software called by the processor, and the rest by hardware circuits.

[0254] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a CPU, a microprocessor, a graphics processing unit (GPU) (also 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, and the logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by an ASIC or 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.

[0255] As shown in Figure 5A, Figure 5A is a structural diagram of a communication device shown according to an embodiment of the present disclosure. The structure of the communication device 5100 can be as shown in Figure 5A. The communication device 5100 can be a terminal. The communication device 5100 includes: a processing module 5101. In some embodiments, the processing module 5101 is used to determine the transmission power of the first uplink beam based on the first power control parameter associated with the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to the uplink multiple receiving points. In some embodiments, the above-mentioned processing module 5101 is configured to execute at least one of the processing steps (for example, step S3102, step S3103) performed by the terminal in any of the above methods, which will not be repeated here.

[0256] As shown in Figure 5B, Figure 5B is a structural diagram of a communication device shown according to an embodiment of the present disclosure. The structure of the above-mentioned communication device 5200 can be as shown in Figure 5B. The communication device 5200 can be a base station. The communication device 5200 includes: a transceiver module 5201. In some embodiments, the transceiver module 5201 is used to send a second power control parameter, wherein the second power control parameter is used to determine the first power control parameter, and the first power control parameter is used to determine the transmission power of the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to the uplink multiple receiving points. In some embodiments, the above-mentioned transceiver module 5201 is configured to perform at least one of the communication steps such as sending and / or receiving performed by the base station in any of the above methods (for example, step S3201), which will not be repeated here.

[0257] In some embodiments, the transceiver module 5201 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 5201 may be interchangeable with a transceiver.

[0258] Figure 6A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure. Communication device 6100 can be a base station, a terminal (e.g., user equipment), a chip, a chip system, or a processor that supports the communication device to implement any of the above methods, or a chip, a chip system, or a processor that supports the 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.

[0259] 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 communication protocols and communication data, and the central processing unit can be used to control network nodes (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, 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.

[0260] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., step S201 and step S203, but not limited thereto), and the processor 6101 performs at least one of the other steps (e.g., step S202, 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.

[0261] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 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 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0262] The communication device 6100 described in the above embodiment may be a base station 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 base station may be an independent device or may be part of a larger device. For example, the terminal 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 cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0263] FIG6B is a schematic diagram of a chip structure according to an embodiment of the present disclosure. For the case where the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the chip structure 6200 shown in FIG6B , but the present disclosure is not limited thereto.

[0264] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0265] 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.

[0266] In some embodiments, the interface circuit 6202 performs at least one of the communication steps of sending and / or receiving in the above method. For example, the interface circuit 6202 performing the communication steps of sending and / or receiving in the above method means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device.

[0267] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0268] 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.

[0269] The embodiment of the present disclosure further provides a computer program product, which, when executed by the communication device 6100, enables the communication device 6100 to execute any of the above methods.

[0270] The embodiments of the present disclosure further provide a computer program, which, when executed on a computer, enables the computer to execute any of the above methods.

[0271] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the embodiments disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow from the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0272] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A communication method, performed by a terminal, comprising: The transmit power of the first uplink beam is determined according to a first power control parameter associated with the first uplink beam, where the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

2. The method according to claim 1, wherein The first power control parameter includes at least one of the following: path loss, where the path loss is determined based on a first path loss reference signal associated with a first beam, where the first beam is a downlink beam between the terminal and a single downlink reception point or an uplink beam between one of multiple uplink reception points of the terminal; open-loop power control parameters, the open-loop power control parameters comprising: a first uplink transmit power associated with the first uplink beam and a first path loss compensation factor associated with the first uplink beam; Closed-loop power control parameters, wherein the closed-loop power control parameters include a closed-loop control step size associated with the first uplink beam.

3. The method according to claim 2, wherein: The first uplink beam is indicated by a first transmission configuration indication state configured by the base station for the terminal.

4. The method according to claim 3, wherein: The first transmission configuration indication state includes at least one of the following: a downlink transmission configuration indication state and at least one uplink transmission configuration indication state; a joint transmission configuration indication state and at least one uplink transmission configuration indication state; Among them, the at least one uplink transmission configuration indication state is used to indicate the first uplink beam.

5. The method according to claim 2, wherein: The first uplink transmission power is configured by the base station for the first uplink beam.

6. The method according to claim 5, wherein: The first path loss compensation factor is configured by the base station for the first uplink beam; or, The first path loss compensation factor is determined by the terminal, and a value of the first path loss compensation factor is smaller than a value of a second path loss compensation factor configured by the base station for the first uplink beam.

7. The method according to claim 6, wherein: The method further comprises at least one of the following: Determine the first path loss compensation factor according to a preset first offset and a path loss compensation factor associated with a first downlink beam, wherein the first offset is an offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is a beam sent by the base station to the terminal; When the first downlink beam is not configured with an associated path loss compensation factor, determining a preset path loss compensation factor as the first path loss compensation factor; The first uplink beam is associated with a third path loss compensation factor, and the third path loss compensation factor is determined as the first path loss compensation factor, where the third path loss compensation factor is the path loss compensation factor configured by the base station for other uplink beams.

8. The method according to any one of claims 2 to 7, wherein: The method further comprises: determining, based on a mapping relationship between a second beam and a path loss offset, a first path loss offset associated with the first uplink beam, where the first uplink beam is at least one of the second beams; The path loss is determined according to the first path loss reference signal and the first path loss offset.

9. The method according to claim 8, wherein The second beam is indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam is indicated by an activated transmission configuration indication state; or, the uplink beam is indicated by a scheduled transmission configuration indication state.

10. The method according to any one of claims 2 to 9, wherein: The closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner. The method according to claim 10 , wherein the closed-loop control step size has a value of at least one of −3 and 5.

12. The method according to claim 11, wherein The value of the closed-loop control step size also includes at least one of -1, 0, 1 and 3.

13. The method according to any one of claims 2 to 9, wherein: The closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner.

14. The method according to claim 13, wherein The closed-loop control step size includes at least one of -6, 6, -7 and 8.

15. The method according to claim 14, wherein The value of the closed-loop control step size also includes at least one of -4, -1, 1 and 4.

16. A communication method, performed by a base station, the method comprising: Send a second power control parameter, wherein the second power control parameter is used to determine a first power control parameter associated with a first uplink beam, the first power control parameter is used to determine the transmission power of the first uplink beam, and the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

17. The method according to claim 16, wherein The first power control parameter includes at least one of the following: a path loss, where the path loss is determined based on a first path loss reference signal associated with a first beam, where the first beam includes a downlink beam between the terminal and a single downlink reception point or an uplink beam between the terminal and one of the multiple uplink reception points; open-loop power control parameters, the open-loop power control parameters comprising: a first uplink transmit power associated with the first uplink beam and a first path loss compensation factor; Closed-loop power control parameters, wherein the closed-loop power control parameters include a closed-loop control step size associated with the first uplink beam.

18. The method according to claim 17, wherein The first uplink beam is indicated by a first transmission configuration indication state configured by the base station for the terminal.

19. The method according to claim 18, wherein The first transmission configuration indication state includes at least one of the following: a downlink transmission configuration indication state and at least one uplink transmission configuration indication state; a joint transmission configuration indication state and at least one uplink transmission configuration indication state; Among them, the at least one uplink transmission configuration indication state is used to indicate the first uplink beam.

20. The method according to claim 17, wherein The first uplink transmission power is configured by the base station for the first uplink beam.

21. The method according to claim 20, wherein The first path loss compensation factor is configured by the base station for the first uplink beam; or, the first uplink transmit power is determined by the terminal, and the value of the first path loss compensation factor is less than the value of the second path loss compensation factor configured by the base station for the first uplink beam.

22. The method according to claim 17, wherein The method further comprises: Send first information, where the first information is used to indicate a preset first offset and a path loss compensation factor associated with a first downlink beam, wherein the first offset and the path loss compensation factor associated with the first downlink beam are used to determine the first path loss compensation factor, and the first offset is the offset between the path loss compensation factor associated with the uplink beam and the path loss compensation factor associated with the downlink beam, and the first downlink beam is a beam sent by the base station to the terminal.

23. The method according to any one of claims 17 to 22, wherein: The method further comprises: Send second information, wherein the second information is used to indicate a mapping relationship between a second beam and a path loss offset, and the mapping relationship between the second beam and the path loss offset is used to determine a first path loss offset associated with the first uplink beam, and the first uplink beam is at least one of the second beams; and determine the path loss based on the first path loss reference signal and the first path loss offset.

24. The method according to claim 23, wherein The second beam is indicated by a transmission configuration indication state in a transmission configuration indication state resource pool; or, the second beam is indicated by an activated transmission configuration indication state; or, the second beam is indicated by a scheduled transmission configuration indication state.

25. The method according to any one of claims 17 to 24, wherein The closed-loop power control parameter is used by the terminal to perform closed-loop power control in an accumulation manner.

26. The method according to claim 25, wherein The closed-loop control step size includes at least one of -3 and 5.

27. The method according to claim 26, wherein The value of the closed-loop control step size also includes at least one of -1, 0, 1 and 3.

28. The method according to any one of claims 17 to 24, wherein The closed-loop power control parameter is used by the terminal to perform closed-loop power control in an absolute value manner.

29. The method according to claim 28, wherein The closed-loop control step size includes at least one of -6, 6, -7 and 8.

30. The method of claim 28, wherein The value of the closed-loop control step size also includes at least one of -4, -1, 1 and 4.

31. A terminal comprising: The processing module is configured to determine the transmission power of the first uplink beam according to the first power control parameter associated with the first uplink beam, where the first uplink beam is an uplink beam sent by the terminal to multiple uplink receiving points.

32. A base station, comprising: The transceiver module is configured to send a second power control parameter, wherein the second power control parameter is used to determine the first power control parameter, the first power control parameter is used to determine the transmit power of the first uplink beam, and the first uplink beam is the Uplink beam sent by the terminal to multiple uplink receiving points.

33. A terminal comprising: at least one processor; a memory storing instructions; When the instruction is executed by the terminal, the terminal implements the communication method according to any one of claims 1 to 15.

34. A base station, comprising: at least one processor; a memory storing instructions; When the instruction is executed by the network device, the network device implements the communication method according to any one of claims 16 to 30.

35. A communication system comprising: A terminal configured to implement the communication method according to any one of claims 1 to 15; A network device configured to implement the communication method according to any one of claims 16 to 30.

36. A storage medium storing instructions, wherein when the instructions are executed on a communication device, the communication device executes the communication method according to any one of claims 1 to 30.

37. A computer program product, comprising a computer program, wherein when the computer program is run on a communication device, the communication device is caused to perform the communication method according to any one of claims 1 to 30.

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