Communication method, terminal, access network device, communication system and storage medium

Abstract

Embodiments of the present disclosure relate to a communication method, a terminal, an access network device, a communication system, and a storage medium. The communication method can be executed by a terminal. The method comprises: receiving first information, the first information being used for scheduling transmission of a sounding reference signal (SRS), and a power control mode of the SRS being an independent closed-loop power control mode, wherein the first information comprises a plurality of transmit power control (TPC) command fields, different TPC command fields are associated with different power control adjustment states, and at least one TPC command field among the plurality of TPC command fields carries a TPC command. According to the present disclosure, power control is carried out on the SRS by means of the TPC commands in the first information associated with the power control adjustment states, improving the system power efficiency.

Description

Communication method, terminal, access network equipment, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, a terminal, an access network device, a communication system, and a storage medium. Background Art

[0002] In mobile communication systems, when terminals send information to network devices via the uplink, uplink power control is required. New radio (NR) systems introduce multiple transmission receipt points (mTRPs), or asymmetric downlink sTRPs / uplink mTRPs. In this scenario, enhanced uplink power control is required.

[0003] Summary of the Invention

[0004] In the asymmetric downlink sTRP / uplink mTRP scenario, the lack of uplink power control makes it impossible to improve system power efficiency and affects system performance.

[0005] The embodiments of the present disclosure provide a communication method, a terminal, an access network device, a communication system, and a storage medium.

[0006] According to the first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal, and the method includes: receiving first information, wherein the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field of the multiple transmission power control command fields carries a transmission power control command.

[0007] According to the second aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by an access network device, and the method includes: sending first information, wherein the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field of the multiple transmission power control command fields carries a transmission power control command.

[0008] According to the third aspect of an embodiment of the present disclosure, a terminal is proposed, including: a first transceiver module, configured to receive first information, the first information being used to schedule the transmission of a sounding reference signal SRS, the power control mode of the SRS being an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the multiple transmission power control command fields carries a transmission power control command.

[0009] According to the fourth aspect of an embodiment of the present disclosure, an access network device is proposed, including: a second transceiver module, configured to send first information, the first information being used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS being an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the multiple transmission power control command fields carries a transmission power control command.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is configured to execute the communication method of the first aspect.

[0011] According to a sixth aspect of an embodiment of the present disclosure, an access network device is proposed, comprising: one or more processors; wherein the access network device is used to execute the communication method as in the second aspect.

[0012] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising an access network device and a terminal, wherein the terminal is configured to implement the communication method of the first aspect, and the access network device is configured to implement the communication method of 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 an access network device or a terminal, the access network device or the terminal executes a communication method as described in any one of the first and second aspects.

[0014] According to a ninth aspect of the embodiments of the present disclosure, a computer program product is proposed, comprising a computer program, which implements the communication method described in any one of the first and second aspects when executed by a processor.

[0015] According to a tenth aspect of an embodiment of the present disclosure, a computer program is proposed, which includes codes, and when the codes are executed by a processor, they implement the communication method described in any one of the first and second aspects.

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

[0017] In the embodiment of the present disclosure, the power of the SRS is controlled by using the TPC command associated with the power control adjustment state in the first information, thereby improving the power efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] FIG1A is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0020] FIG1B is a schematic diagram of an architecture of an implementation of a communication system provided according to an embodiment of the present disclosure.

[0021] FIG1C is a schematic diagram of an architecture of an implementation of a communication system provided according to an embodiment of the present disclosure.

[0022] FIG2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0023] FIG3A is a schematic diagram showing a flow chart of a communication method executed by a terminal side according to an embodiment of the present disclosure.

[0024] FIG3B is a flow chart showing a communication method executed on an access network device side according to an embodiment of the present disclosure.

[0025] FIG4 is another schematic flow chart of a communication method executed on a terminal side according to an embodiment of the present disclosure.

[0026] FIG5A is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure.

[0027] FIG5B is a schematic structural diagram of an access network device proposed in an embodiment of the present disclosure.

[0028] FIG6 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0029] FIG7 is a schematic diagram of a structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The embodiments of the present disclosure provide a communication method, a terminal, an access network device, a communication system, and a storage medium.

[0031] In the first aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a terminal, and the method includes: receiving first information, where the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the multiple transmission power control command fields carries a transmission power control command.

[0032] In the embodiment of the present disclosure, the power of the SRS is controlled by using the TPC command associated with the power control adjustment state in the first information, thereby improving the power efficiency of the system.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the number of the multiple transmission control command fields is determined according to the number of the power control adjustment states.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the number of transmission control command fields is 2.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the transmission control command is independently configured, and a transmission power control command field carries a transmission power control command.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the transmission control command is jointly configured, and one transmission control command field carries multiple transmission control commands.

[0037] In combination with some embodiments of the first aspect, in some embodiments, the terminal is configured with multiple SRS resources, the multiple SRS resources are associated with multiple uplink beams, the multiple uplink beams are associated with different power control adjustment states, and the multiple uplink beams are beams between the terminal and at least one of the uplink multiple receiving points.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the number of power control adjustment states is 1 or 2.

[0039] In combination with some embodiments of the first aspect, in some embodiments, the power control adjustment states associated with SRS resources belonging to the same SRS resource set among multiple SRS resources are the same.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the uplink beam of the terminal is indicated by a transmission configuration indication state.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the transmission power control command is used for the uplink beam of the terminal to perform closed-loop power control in an accumulation manner or an absolute value manner.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the function of the SRS is at least one of the following: beam management; antenna switching; codebook; non-codebook.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the first information is downlink control information DCI.

[0045] In the second aspect, an embodiment of the present disclosure proposes a communication method, which is executed by an access network device, and the method includes: sending first information, the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field of the multiple transmission power control command fields carries a transmission power control command.

[0046] In combination with some embodiments of the second aspect, in some embodiments, the number of the multiple transmission control command fields is determined according to the number of the power control adjustment states.

[0047] In combination with some embodiments of the second aspect, in some embodiments, the number of transmission control command fields is 2.

[0048] In combination with some embodiments of the second aspect, in some embodiments, the transmission control command is independently configured, and a transmission power control command field carries a transmission power control command.

[0049] In combination with some embodiments of the second aspect, in some embodiments, the transmission control command is jointly configured, and one transmission control command field carries multiple transmission control commands.

[0050] In combination with some embodiments of the second aspect, in some embodiments, the method also includes: the access network device configures multiple SRS resources for the terminal, the multiple SRS resources are associated with multiple uplink beams, the multiple uplink beams are associated with different power control adjustment states, and the multiple uplink beams are beams between the terminal and at least one of the uplink multiple receiving points.

[0051] In combination with some embodiments of the second aspect, in some embodiments, the number of power control adjustment states is 1 or 2.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the power control adjustment states associated with SRS resources belonging to the same SRS resource set among multiple SRS resources are the same.

[0053] In combination with some embodiments of the second aspect, in some embodiments, the uplink beam of the terminal is indicated by a transmission configuration indication state.

[0054] In combination with some embodiments of the second aspect, in some embodiments, the transmission power control command is used for the uplink beam of the terminal to perform closed-loop power control in an accumulation manner or an absolute value manner.

[0055] In combination with some embodiments of the second aspect, in some embodiments, the SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

[0056] In combination with some embodiments of the second aspect, in some embodiments, the functions of the SRS are at least one of the following: beam management; antenna switching; codebook; non-codebook.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the first information is downlink control information DCI.

[0058] In the third aspect, an embodiment of the present disclosure proposes a terminal, comprising: a first transceiver module configured to receive first information, the first information being used to schedule the transmission of a sounding reference signal SRS, the power control mode of the SRS being an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the multiple transmission power control command fields carries a transmission power control command.

[0059] In combination with some embodiments of the third aspect, in some embodiments, the number of multiple transmission control command fields is determined according to the number of the power control adjustment states.

[0060] In combination with some embodiments of the third aspect, in some embodiments, the number of transmission control command fields is 2.

[0061] In combination with some embodiments of the third aspect, in some embodiments, the transmission control command is independently configured, and a transmission power control command field carries a transmission power control command.

[0062] In combination with some embodiments of the third aspect, in some embodiments, the transmission control command is jointly configured, and one transmission control command field carries multiple transmission control commands.

[0063] In combination with some embodiments of the third aspect, in some embodiments, the terminal is configured with multiple SRS resources, the multiple SRS resources are associated with multiple uplink beams, the multiple uplink beams are associated with different power control adjustment states, and the multiple uplink beams are beams between the terminal and at least one of the uplink multiple receiving points.

[0064] In combination with some embodiments of the third aspect, in some embodiments, the number of power control adjustment states is 1 or 2.

[0065] In combination with some embodiments of the third aspect, in some embodiments, the power control adjustment states associated with SRS resources belonging to the same SRS resource set among multiple SRS resources are the same.

[0066] In combination with some embodiments of the third aspect, in some embodiments, the uplink beam of the terminal is indicated by a transmission configuration indication state.

[0067] In combination with some embodiments of the third aspect, in some embodiments, the transmission power control command is used for the uplink beam of the terminal to perform closed-loop power control in an accumulation manner or an absolute value manner.

[0068] In combination with some embodiments of the third aspect, in some embodiments, the SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

[0069] In combination with some embodiments of the third aspect, in some embodiments, the functions of the SRS are at least one of the following: beam management; antenna switching; codebook; non-codebook.

[0070] In combination with some embodiments of the third aspect, in some embodiments, the first information is downlink control information DCI.

[0071] In the fourth aspect, an embodiment of the present disclosure proposes an access network device, comprising: a second transceiver module is configured to send first information, the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; wherein, the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the multiple transmission power control command fields carries a transmission power control command.

[0072] In combination with some embodiments of the fourth aspect, in some embodiments, the number of multiple transmission control command fields is determined according to the number of the power control adjustment states.

[0073] In combination with some embodiments of the fourth aspect, in some embodiments, the number of transmission control command fields is 2.

[0074] In combination with some embodiments of the fourth aspect, in some embodiments, the transmission control command is independently configured, and a transmission power control command field carries a transmission power control command.

[0075] In combination with some embodiments of the fourth aspect, in some embodiments, the transmission control command is jointly configured, and one transmission control command field carries multiple transmission control commands.

[0076] In combination with some embodiments of the fourth aspect, in some embodiments, the method also includes: the access network device configures multiple SRS resources for the terminal, the multiple SRS resources are associated with multiple uplink beams, the multiple uplink beams are associated with different power control adjustment states, and the multiple uplink beams are beams between the terminal and at least one of the uplink multiple receiving points.

[0077] In combination with some embodiments of the fourth aspect, in some embodiments, the number of power control adjustment states is 1 or 2.

[0078] In combination with some embodiments of the fourth aspect, in some embodiments, the power control adjustment states associated with SRS resources belonging to the same SRS resource set among multiple SRS resources are the same.

[0079] In combination with some embodiments of the fourth aspect, in some embodiments, the uplink beam of the terminal is indicated by a transmission configuration indication state.

[0080] In combination with some embodiments of the fourth aspect, in some embodiments, the transmission power control command is used for the uplink beam of the terminal to perform closed-loop power control in an accumulation manner or an absolute value manner.

[0081] In combination with some embodiments of the fourth aspect, in some embodiments, the SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

[0082] In combination with some embodiments of the fourth aspect, in some embodiments, the functions of the SRS are at least one of the following: beam management; antenna switching; codebook; non-codebook.

[0083] In combination with some embodiments of the fourth aspect, in some embodiments, the first information is downlink control information DCI.

[0084] In a fifth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the terminal is used to execute the communication method of the first aspect.

[0085] In a sixth aspect, an embodiment of the present disclosure proposes an access network device, comprising: one or more processors; wherein the access network device is used to execute the communication method of the second aspect.

[0086] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, comprising: a terminal and an access network device; wherein, the terminal is configured to execute the method described in the optional implementation manner of the first aspect, and the access network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0087] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions. When the instructions are executed on a terminal or an access network device, the terminal or the access network device executes the method described in the optional implementation of the first and second aspects.

[0088] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a terminal or an access network device, the terminal or the access network device executes the method described in the optional implementation of the first and second aspects.

[0089] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0090] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0091] It is understandable that the above-mentioned access network devices, terminals, communication systems, storage media, 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.

[0092] The present disclosure provides a communication method, terminal, access network device, communication system, and storage medium. In some embodiments, the terms "communication method" and "information processing method," "information configuration method," "parameter configuration method," and "power control method" are interchangeable, and the terms "information processing system," "communication system," and "power control system" are interchangeable.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0098] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0099] 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.

[0100] 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.

[0101] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0112] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0113] 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.

[0114] FIG1A is a schematic diagram showing an architecture of a communication system according to an embodiment of the present disclosure.

[0115] As shown in Figure 1A, a communication system 100 includes a terminal 101 and an access network device 102. The access network device 102 may also be referred to as an access network device.

[0116] 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.

[0117] In some embodiments, the access network device 102 is, for example, a node or device that accesses a terminal to a wireless network. The access network device 102 may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0118] In some embodiments, the access network device 102 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 102, 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.

[0119] In some embodiments, the CU and DU may be centrally deployed on one access network device, or distributedly deployed on multiple access network devices.

[0120] In some embodiments, an access network device 102 may include a CU and at least one DU. A CU may be connected to multiple DUs, and a DU can only be connected to one CU.

[0121] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0122] In some embodiments, the access network device 102 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.

[0123] In some embodiments, the CU and DU may be centrally deployed on one access network device, or distributedly deployed on multiple access network devices.

[0124] In some embodiments, an access network device 102 may include a CU and at least one DU. A CU may be connected to multiple DUs, and a DU can only be connected to one CU.

[0125] 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 provided by 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 provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0126] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0127] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0128] The disclosed embodiments enhance uplink power control for asymmetric downlink sTRP / uplink mTRP scenarios, as shown in Figures 1B and 1C.

[0129] The communication system of FIG1B includes a base station and multiple receiving points. The multiple receiving points perform only uplink transmission, and the base station performs both uplink and downlink transmission.

[0130] The communication system in FIG1C includes a base station and multiple receiving points. The multiple receiving points only perform uplink transmission, and the base station only performs downlink transmission.

[0131] In some embodiments, the base station may be a macro base station (macro gNB).

[0132] Figures 1B and 1C only show schematic diagrams of communication system architectures for some implementations in the asymmetric downlink sTRP / uplink mTRP scenario. The embodiments of the present disclosure can also perform uplink power control on communication system architectures with other implementations.

[0133] The following describes and explains the terms involved in this disclosure.

[0134] 1. Introduction to Sounding Reference Signal (SRS) Power Control

[0135] If the terminal device sends an SRS to the network device on the uplink activation part bandwidth (BWP) b on the carrier f of the serving cell c, the uplink transmit power of the SRS in the transmission opportunity i can be calculated according to the following method:

[0136] Wherein, i is the SRS transmission timing; l is the SRS power control adjustment state (SRS power control adjustment states), l=0 or 1, l=0; b is the UL BWP index, f is the carrier index; and c is the serving cell index.

[0137] P SRS，b，f，c (i,q s , l) is the uplink transmission power of SRS in transmission opportunity i, h b，f，c (i, l) can be regarded as the closed-loop power control part.

[0138] P CMAX，f，c (i) is the maximum SRS transmission power configured for carrier f of serving cell c at transmission opportunity i, which can be described as a power class supported by the terminal device, where the terminal device sends the SRS to the network device on the BWPb of the carrier f of the cell c.

[0139] P O_SRS，b，f，c (q s) is the p0 value configured for carrier f, BWP b, serving cell c, and SRS resource set qs. The value of this parameter can be indicated or configured by the network device for the terminal device through signaling (for example, radio resource control (RRC) signaling, system message, or downlink control information (DCI), etc.).

[0140] In some embodiments, the network device can configure multiple sets of {P O_SRS，b，f，c , α SRS，b，f，c}, and indicates the corresponding {P O_SRS，b，f，c , α SRS，b，f，c}.

[0141] α SRS，b，f，c (q s ) for carrier f, BWP b, serving cell c, SRS resource set q s The configured alpha value, the value of this parameter can be indicated or configured by the network device to the terminal device through signaling (such as RRC signaling, system message, or DCI, etc.).

[0142] μ is the subcarrier spacing configuration of SRS, where the value of μ can be an integer such as 0, 1, 2, or 4;

[0143] M SRS，b，f，c (i) is the number of resource blocks (RBs) for SRS configured for carrier f, BWP b, serving cell c, and transmission opportunity i, or the number of RBs used to send SRS. The value of this parameter can be indicated or configured by the network device for the terminal device through signaling (such as RRC signaling or DCI).

[0144] PL b，f，c (q d ) is for carrier f, BWP b, serving cell c, SRS resource id q d Calculate pathloss based on the configured reference signal.

[0145] h b，f，c (i, l) is a power adjustment value determined according to a transmit power control (TPC) command in power control adjustment state l, where the TPC command may be indicated or configured by a network device to a terminal device via signaling (e.g., RRC signaling or DCI). The transmit power control command may also be referred to as a power control command.

[0146] For closed-loop power control, the terminal device side can support more than or equal to one power control adjustment state. For example, it can support two power control adjustment states. For example, the power control adjustment state is recorded as 1, and the power adjustment value of the power control adjustment state 1 is recorded as h. b，f，c (i, l), when the terminal device supports two power control adjustment states, the value of l is 0 or 1, which is used to select a certain power adjustment value from the two power control adjustment states supported by the terminal device.

[0147] In some embodiments, the closed-loop power control method can be an accumulated method or an absolute method.

[0148] After receiving the TPC command of power control adjustment state 1 from the network device, the terminal device determines f according to the TPC command. b，f，c (i, l), f can be determined by the following cumulative method or absolute value method b，f，c (i, l), thereby performing closed-loop power control.

[0149] The first one is the cumulative method.

[0150] Among them, δ SRS，b，f，c is the parameter value indicated by the TPC command (also called the TPC command value), h b，f，c (i-i0, l) is the closed-loop power adjustment value of the SRS at transmission opportunity i-i0, which represents the accumulation of power adjustment step sizes indicated by TPC commands received between transmission opportunity i-i0 and transmission opportunity i. The SRS at transmission opportunity i can also be understood as the i-th transmission of the SRS.

[0151] The second method is the absolute value method. b,f,c (i) = δ SRS,b,f,c (i)

[0152] Among them, δ SRS，b，f，c (i) is the TPC command value sent by the network device to the terminal device for the SRS at transmission opportunity i.

[0153] In some embodiments, the power control adjustment value in the closed-loop power control part may be determined according to a TPC command, which may be indicated by the network device to the terminal device through signaling.

[0154] 2. Closed-loop power control process

[0155] The network device sends a TPC command to the terminal device, and the terminal device determines the power adjustment value according to the TPC command sent by the network device. For example, the TPC command can be indicated by a TPC command field in the DCI.

[0156] The DCI formats that can carry the TPC command field include DCI format 0_0, DCI format 0_1, DCI format 1_0, DCI format 1_1, DCI format 2_2, or DCI format 2_3.

[0157] In some embodiments, DCI format 2_3 is used to send a TPC command for a sounding reference signal SRS. The DCI includes one or more TPC fields, and the size of each TPC field can be a positive integer (eg, 2) bits.

[0158] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , an embodiment of the present disclosure relates to a communication method. Executed by a communication system 100, the communication method includes steps S201 to S202.

[0159] In the embodiment of the present disclosure, the communication system 100 adopts the above-mentioned asymmetric downlink sTRP / uplink mTRP.

[0160] In step S201, the access network device sends first information.

[0161] In some embodiments, the terminal receives first information.

[0162] In some embodiments, the uplink mTRP may include an access network device and at least one receiving point. In one example, as shown in FIG1B , uplink and downlink transmissions are performed between the access network device and the terminal, and uplink transmissions are performed between at least one access point and the terminal. In another example, as shown in FIG1C , downlink transmissions are performed between the access network device and the terminal, and uplink transmissions are performed between at least one access point and the terminal. In one example, the access network device may be a macro base station (macro gNB).

[0163] In some embodiments, the first information is used to schedule the transmission of the SRS. In this case, the power control mode of the SRS is an independent closed-loop power control mode.

[0164] In some embodiments, the SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

[0165] In some embodiments, the usage of the SRS is at least one of the following: beam management, antenna switching, codebook, and non-codebook.

[0166] In some embodiments, the multiple uplink beams are beams between the terminal and at least one of the multiple uplink reception points. The multiple uplink beams are used for the terminal to send SRS to the multiple uplink reception points.

[0167] In some embodiments, the first information is used for closed-loop power control of multiple uplink beams. In some embodiments, the multiple uplink beams are beams between the terminal and at least one of the uplink mTRPs. The multiple uplink beams are used for the terminal to send SRS to multiple uplink reception points.

[0168] In some embodiments, the first information includes multiple TPC command fields (e.g., TPC command fields), at least one of the multiple TPC command fields carries a TPC. In some embodiments, the first information can be used to perform power control on the SRS. In one example, the first information is a DCI.

[0169] In some embodiments, the DCI may be DCI form 2 to 3. In some embodiments, the DCI may be DCI used for SRS closed-loop power control, and the DCI is commonly used by multiple terminals (eg, group-common DCI).

[0170] In some embodiments, when the TPC command field carries at least two TPC commands, the first information may be used to perform different power controls on different SRSs.

[0171] In some embodiments, different TPC command fields are associated with different power control adjustment states.

[0172] In some embodiments, the power control adjustment state may include two states or more states. In some embodiments, the power control adjustment state (denoted as l) may be indicated by a closed loop index. In one example, there may be two power control adjustment states, where l∈{i0, i1}, where l=i0 indicates one power control adjustment state and l=i1 indicates another power control adjustment state.

[0173] In some embodiments, depending on different configurations, the power control adjustment states associated with multiple TPC command fields may be 1, 2, or more.

[0174] In some embodiments, the number of the plurality of TPC command fields is determined according to the number of power control adjustment states.

[0175] In some embodiments, TPC commands are independently configured, and one TPC command field carries one TPC command.

[0176] In one example, the first information includes two TPC command fields, for example, TPC command field 1 and TPC command field 2. TPC command field 1 carries one TPC command, for example, the TPC command in TPC command field 1 is TPC1, and TPC command field 2 carries one TPC command, for example, the TPC command in TPC command field 2 is TPC2. In this case, TPC1 and TPC2 can be used to perform different power control on the transmission of two different SRSs.

[0177] In some embodiments, the TPC commands are jointly configured, and one TPC command field carries multiple TPC commands.

[0178] In one example, the first information includes one TPC command field, for example, one TPC command field, which carries two TPC commands, for example, two TPC commands carried in the TPC command field, TPC1 and TPC2. In this case, TPC1 and TPC2 can be used to perform different power control on the transmission of two different SRSs.

[0179] In some embodiments, the access network device configures multiple SRS resources for the terminal. The multiple SRS resources are associated with multiple uplink beams, and the multiple uplink beams are associated with different power control adjustment states. That is, the power control adjustment state, the uplink beam, and the TPC command field are mutually associated. In this way, based on the TPC command in the TPC command field included in the first information, the terminal can perform power control on the uplink beam associated with the TPC command.

[0180] In some embodiments, the power control adjustment states associated with SRS resources belonging to the same SRS resource set among multiple SRS resources may be the same.

[0181] In some embodiments, the power control adjustment states associated with SRS resources belonging to the same SRS resource set among multiple SRS resources may be different.

[0182] In some embodiments, the uplink beam is indicated by a transmission configuration indication state (TCI state). In some embodiments, the power control adjustment state, the TCI state, and the TPC command field are correlated, such that, based on the TPC command in the TPC command field, the terminal can perform power control on the uplink beam indicated by the TCI state.

[0183] In some embodiments, when the power control adjustment state is indicated by a closed loop index (eg, close loop index), the closed loop index, TCI state, and TPC command fields are correlated with each other.

[0184] In step S202, the terminal performs closed-loop power control on the uplink beam based on the first information.

[0185] In some embodiments, the terminal performs closed-loop power control on the uplink beam based on the TPC command included in the first information.

[0186] In some embodiments, the TPC command included in the first information is associated with a closed-loop power adjustment step size (eg, δ).

[0187] In some embodiments, the terminal performs closed-loop power control on the uplink beam based on the closed-loop power adjustment step associated with the TPC command.

[0188] In some embodiments, when the terminal performs closed-loop power control in an accumulation manner, a closed-loop power adjustment step size may be determined based on the value of the TPC command, and a closed-loop power adjustment value may be determined based on the closed-loop power adjustment step size.

[0189] In some embodiments, when the terminal performs closed-loop power control in an absolute value manner, the value of the TPC command is the closed-loop power adjustment step. In this case, the closed-loop power adjustment step is the closed-loop power adjustment value.

[0190] The communication method involved in the embodiments of the present disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as an independent embodiment. For example, step S202 may be implemented as an independent embodiment. However, the present disclosure is not limited thereto.

[0191] In some embodiments, the terms "determine," "adjust," "adjust," "reduce," "amplify," "increase," "decrease," etc. are used interchangeably.

[0192] 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.

[0193] In some embodiments, terms such as “TPC command domain”, “TPC command field”, and “TPC field” may be used interchangeably.

[0194] In some embodiments, the terms "carry", "include", "contain", "encapsulate", etc. can be used interchangeably.

[0195] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0196] 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.

[0197] In some embodiments, terms such as "send", "transmit", "report", "transmit", "request", "bidirectional transmission", "send and / or receive" and the like can be used interchangeably.

[0198] In some embodiments, terms such as "send", "return", "feedback", "response", and "answer" can be used interchangeably.

[0199] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0200] 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.

[0201] FIG3A is a schematic diagram of a first implementation flow of a terminal executing a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method executed by a terminal. The communication method includes steps S3101 to S3102.

[0202] In step S3101, first information is received.

[0203] The optional implementation of step S3101 can refer to the optional implementation of step S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0204] In step S3102, closed-loop power control is performed on the uplink beam based on the first information.

[0205] The optional implementation of step S3102 can refer to the optional implementation of step S202 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0206] As shown in Figure 3B, Figure 3B is a schematic diagram of an implementation flow of a communication method executed by an access network device according to an embodiment of the present disclosure. The present disclosure embodiment relates to a communication method, which is executed by an access network device. The above communication method includes step S3201.

[0207] In step S3201, the first information is sent.

[0208] The optional implementation of step S3201 can refer to the optional implementation of step S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0209] FIG4 is a schematic diagram of another implementation flow of a communication method executed by a terminal according to an embodiment of the present disclosure. As shown in FIG4 , the present disclosure embodiment relates to a communication method executed by a terminal. The communication method includes step S401.

[0210] In step S401, first information is received.

[0211] The optional implementation of step S401 can refer to the optional implementation of step S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0212] In some embodiments, power control adjustment states associated with different SRS resources in an SRS resource set are configured via RRC.

[0213] In some embodiments, different TCI states are used to configure power control adjustment states associated with different SRS resources.

[0214] In some embodiments, the power control adjustment state may be indicated by a close loop index. In one example, the power control adjustment state is (i0, i1).

[0215] In some embodiments, different SRS resources in the same SRS resource set correspond to the same power control adjustment state.

[0216] In some embodiments, the power control adjustment state associated with the SRS is unrelated to the power control adjustment state associated with the physical uplink shared channel. In one example, i0 and i1 are both independent of the configuration of the PUSCH.

[0217] In some embodiments, the terminal may perform closed-loop power control in an accumulation manner or an absolute value manner.

[0218] In one example, the closed-loop power control is performed in an accumulation manner as h b,f,c (i,l)=h b,f,c (i-i0,l)+Σδ srs,b,f,c (i,l).

[0219] In one example, the closed-loop power control is performed in an absolute value manner as h b,f,c (i,l)=δ srs,b,f,c (i,l).

[0220] In some embodiments, the SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

[0221] In some embodiments, the function of the SRS is at least one of the following: beam management; antenna switching; codebook; non-codebook.

[0222] In some embodiments, RRC signaling notifies the location of the SRS / TPC information of a specific UE in the DCI.

[0223] In some embodiments, corresponding to the SRS set triggered on the UL BWP, the TPC command corresponding to the SRS set of the CC is also determined according to the number of configured closed-loop power control, and can be extended to a maximum of two independent TPC commands or one joint TPC indication command.

[0224] In some embodiments, one or more signaling information blocks corresponding to a UE, each block contains an SRS request and a TPC command, and the TPC command corresponding to the CC is also determined according to the number of configured power control adjustment states, and can be extended to include up to 2 independent TPC commands or a joint TPC indication command.

[0225] The embodiments of the present disclosure further provide a device for implementing any of the above methods, for example, a terminal including units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another network device is provided, including units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0226] It should be understood that the division of the various units or modules in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into a physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), 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, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a 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.

[0227] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement 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 ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0228] Figure 5A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 5A, the terminal 5100 may include: a first transceiver module 5101. In some embodiments, the first transceiver module 5101 is used to receive first information, and the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field in the multiple transmission power control command fields carries a transmission power control command. In some embodiments, the above-mentioned first transceiver module 5101 is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S3101, step S3102, but not limited to this) executed by the terminal in any of the above methods, which will not be repeated here.

[0229] Figure 5B is an exemplary structural diagram of an access network device provided according to an embodiment of the present disclosure. As shown in Figure 5B, the access network device 5200 may include a second transceiver module 5201. In some embodiments, the second transceiver module 5201 may be configured as the first information for scheduling the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; the first information includes a plurality of transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the plurality of transmission power control command fields carries a transmission power control command. In some embodiments, the second transceiver module 5201 may be configured to execute at least one of the communication steps such as sending and / or receiving executed by the access network device in any of the above methods, which will not be repeated here.

[0230] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module. The transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0231] Figure 6 is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. Communication device 6100 can be an access network device, a terminal (e.g., user equipment), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0232] As shown in Figure 6, 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 communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DU or CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 7101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0233] 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 (for example, step S201, but not limited thereto), and the processor 6100 performs at least one of the other steps (for example, step S202, but not limited thereto). In an optional embodiment, the transceiver 6102 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.

[0234] 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.

[0235] The communication device 6100 described in the above embodiment may be an access network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0236] FIG7 is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7100 shown in FIG7 , but the present invention is not limited thereto.

[0237] The chip 7100 includes one or more processors 7101. The chip 7100 is configured to execute any of the above methods.

[0238] In some embodiments, chip 7100 further includes one or more interface circuits 7102. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 7100 further includes one or more memories 7103 for storing data. Alternatively, all or part of memory 7103 may be located external to chip 7100. Optionally, interface circuit 7102 is connected to memory 7103 and may be used to receive data from memory 7103 or other devices, or may be used to send data to memory 7103 or other devices. For example, interface circuit 7102 may read data stored in memory 7103 and send the data to processor 7101.

[0239] In some embodiments, the interface circuit 7102 performs at least one of the communication steps (e.g., step S201, but not limited thereto) in the above method. The interface circuit 7102 performing the communication steps (e.g., step S201, but not limited thereto) in the above method, for example, means that the interface circuit 7102 performs data exchange between the processor 7101, chip 7100, memory 7103, or a transceiver device. In some embodiments, the processor 7101 performs at least one of the other steps (e.g., step S202, but not limited thereto).

[0240] 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.

[0241] The embodiments of the present disclosure further provide 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 temporary storage medium.

[0242] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0243] 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.

[0244] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention 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 invention being indicated by the following claims.

[0245] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A communication method, performed by a terminal, comprising: receiving first information, where the first information is used to schedule transmission of a sounding reference signal (SRS), wherein a power control mode of the SRS is an independent closed-loop power control mode; The first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field among the multiple transmission power control command fields carries a transmission power control command.

2. The method according to claim 1, wherein The number of the plurality of transmission control command fields is determined according to the number of the power control adjustment states.

3. The method according to claim 1 or 2, wherein: The number of the transmission control command fields is 2.

4. The method according to any one of claims 1 to 3, wherein: The transmission control command is independently configured, and one transmission power control command field carries one transmission power control command.

5. The method according to any one of claims 1 to 3, wherein: The transmission control commands are jointly configured, and one transmission control command field carries multiple transmission control commands.

6. The method according to any one of claims 1 to 5, wherein: The terminal is configured with multiple SRS resources, the multiple SRS resources are associated with multiple uplink beams, the multiple uplink beams are associated with different power control adjustment states, and the multiple uplink beams are beams between the terminal and at least one of the uplink multiple receiving points.

7. The method according to claim 6, wherein: The number of the power control adjustment states is 1 or 2.

8. The method according to claim 6 or 7, wherein: The power control adjustment states associated with the SRS resources belonging to the same SRS resource set among the multiple SRS resources are the same.

9. The method according to any one of claims 6 to 8, wherein: The uplink beam of the terminal is indicated by a transmission configuration indication state.

10. According to the method according to any one of claims 1 to 9, the transmission power control command is used for the uplink beam of the terminal to perform closed-loop power control in an accumulation manner or an absolute value manner.

11. The method according to any one of claims 1 to 10, wherein: The SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

12. The method according to any one of claims 1 to 11, wherein: The functions of the SRS are at least one of the following: beam management; Antenna switching; codebook; Non-codebook.

13. The method according to any one of claims 1 to 12, wherein: The first information is downlink control information DCI.

14. A communication method, performed by an access network device, comprising: Sending first information, where the first information is used to schedule transmission of a sounding reference signal (SRS), and the power control mode of the SRS is an independent closed-loop power control mode; The first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field among the multiple transmission power control command fields carries a transmission power control command.

15. The method according to claim 14, wherein The number of the plurality of transmission control command fields is determined according to the number of the power control adjustment states.

16. The method according to claim 14 or 15, wherein: The number of the transmission control command fields is 2.

17. The method according to any one of claims 14 to 16, wherein: The transmission control command is independently configured, and one transmission power control command field carries one transmission power control command.

18. The method according to claims 14 to 16, wherein The transmission control commands are jointly configured, and one transmission control command field carries multiple transmission control commands.

19. The method according to claims 14 to 18, wherein The method further comprises: The access network device configures multiple SRS resources for the terminal, the multiple SRS resources are associated with multiple uplink beams, the multiple uplink beams are associated with different power control adjustment states, and the multiple uplink beams are beams between the terminal and at least one of the uplink multiple receiving points.

20. The method according to claim 19, wherein the number of the power control adjustment states is 1 or 2.

21. The method according to claim 19 or 20, wherein The power control adjustment states associated with the SRS resources belonging to the same SRS resource set among the multiple SRS resources are the same.

22. The method according to any one of claims 19 to 21, wherein: The uplink beam of the terminal is indicated by a transmission configuration indication state.

23. The method according to any one of claims 14 to 22, wherein: The transmission power control command is used for closed-loop power control of the uplink beam of the terminal in an accumulation manner or an absolute value manner.

24. The method according to any one of claims 14 to 23, wherein: The SRS is an aperiodic SRS, a periodic SRS, or a semi-persistent SRS.

25. The method according to any one of claims 14 to 24, wherein: The functions of the SRS are at least one of the following: beam management; Antenna switching; codebook; Non-codebook.

26. The method according to any one of claims 14 to 25, wherein: The first information is downlink control information DCI.

27. A terminal comprising: The first transceiver module is configured to receive first information, where the first information is used to schedule the transmission of a sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one of the multiple transmission power control command fields carries a transmission power control command.

28. An access network device, comprising: The second transceiver module is configured to send first information, wherein the first information is used to schedule the transmission of the sounding reference signal SRS, and the power control mode of the SRS is an independent closed-loop power control mode; wherein the first information includes multiple transmission power control command fields, different transmission power control command fields are associated with different power control adjustment states, and at least one transmission power control command field among the multiple transmission power control command fields carries a transmission power control command.

29. A terminal comprising: one or more processors; The terminal is used to execute the communication method according to any one of claims 1 to 13.

30. An access network device, comprising: one or more processors; Wherein, the access network device is used to execute the communication method described in any one of claims 14 to 26.

31. A communication system comprising a terminal and an access network device, wherein: The terminal is configured to implement the communication method according to any one of claims 1 to 13; the access network device is configured to implement the communication method according to any one of claims 14 to 26.

32. A storage medium storing instructions, wherein when the instructions are executed on a core network device or a terminal, the core network device or the terminal executes the communication method according to any one of claims 1 to 26.

33. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the communication method according to any one of claims 1 to 26.

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