WO2025030438A1 - 通信方法、终端设备和网络设备 - Google Patents

通信方法、终端设备和网络设备 Download PDF

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Publication number
WO2025030438A1
WO2025030438A1 PCT/CN2023/112067 CN2023112067W WO2025030438A1 WO 2025030438 A1 WO2025030438 A1 WO 2025030438A1 CN 2023112067 W CN2023112067 W CN 2023112067W WO 2025030438 A1 WO2025030438 A1 WO 2025030438A1
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WIPO (PCT)
Prior art keywords
path loss
network device
information
offset value
terminal device
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PCT/CN2023/112067
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English (en)
French (fr)
Inventor
刘哲
曹建飞
陈文洪
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2023/112067 priority Critical patent/WO2025030438A1/zh
Priority to CN202380101091.5A priority patent/CN121816801A/zh
Publication of WO2025030438A1 publication Critical patent/WO2025030438A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters

Definitions

  • the present application relates to the field of communications, and more specifically, to a communication method, a terminal device, and a network device.
  • TRPs transmission and reception points
  • the terminal device For uplink transmission, the terminal device sends uplink information to the TRP, and the TRP then transmits the uplink information to the macro base station through an ideal backhaul communication link with the macro base station.
  • the macro base station For downlink transmission, the macro base station sends downlink information to the terminal device. Since the TRP does not send a downlink reference signal to the terminal device, how the terminal device in the distributed communication system determines the path loss when sending uplink information to the TRP is a problem to be solved.
  • An embodiment of the present application provides a communication method that can be used by a terminal device in a distributed communication system to determine a path loss and send uplink information based on the path loss, thereby reducing or avoiding power consumption waste of the terminal device.
  • the present application provides a communication method, including:
  • the terminal device determines the path loss between the terminal device and the first network device according to the path loss offset value
  • the terminal device sends uplink information to the first network device based on the path loss.
  • the present application provides a communication method, including:
  • the second network device sends indication information to the terminal device, where the indication information is used to indicate a path loss offset value, where the path loss offset value is used to determine the path loss between the terminal device and the first network device, where the path loss is used by the terminal device to send uplink information to the first network device.
  • the present application provides a communication method, including:
  • the first network device receives a first SRS
  • the first network device sends the received power of the first SRS to the second network device; or, the first network device sends the difference between the transmitted power of the first SRS and the received power of the first SRS to the second network device.
  • the present application provides a communication method, including:
  • the terminal device receives the DCI sent by the second network device, where the number of bits of the TPC field in the DCI is greater than or equal to 3;
  • the terminal device adjusts the transmission power of the uplink information according to the DCI.
  • the present application provides a communication method, including:
  • the second network device sends a DCI to the terminal device, where the number of bits of the TPC field in the DCI is greater than or equal to 3; the DCI is used by the terminal device to determine the transmission power of uplink information.
  • the present application provides a terminal device, including:
  • a first processing module determines a path loss between the terminal device and the first network device according to the path loss offset value
  • the first transceiver module is used to send uplink information to the first network device based on the path loss.
  • An embodiment of the present application provides a second network device, including:
  • the second transceiver module is used to send indication information to the terminal device, where the indication information is used to indicate a path loss offset value, where the path loss offset value is used to determine the path loss between the terminal device and the first network device, where the path loss is used by the terminal device to send uplink information to the first network device.
  • the embodiment of the present application provides a first network device, including: a third transceiver module, configured to:
  • the receiving power of the first SRS is sent to the second network device; or, the difference between the sending power of the first SRS and the receiving power of the first SRS is sent to the second network device.
  • the present application provides a terminal device, including:
  • a fourth transceiver module configured to receive a DCI sent by the second network device, wherein the number of bits of a transmission power control TPC field in the DCI is greater than or equal to 3;
  • the third processing module is used to adjust the transmission power of the uplink information according to the DCI.
  • An embodiment of the present application provides a second network device, including:
  • the fifth transceiver module is used to send DCI to the terminal device, and the number of bits of the TPC field in the DCI is greater than or equal to 3; the DCI is used for the terminal
  • the end device determines the transmission power of the uplink information.
  • the embodiment of the present application also provides a communication device, including a processor, a memory and a transceiver.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory and control the transceiver so that the device executes the above communication method.
  • An embodiment of the present application provides a chip for implementing the above-mentioned communication method.
  • the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned communication method.
  • An embodiment of the present application provides a computer-readable storage medium for storing a computer program.
  • the computer program When the computer program is executed by a device, the device executes the above-mentioned communication method.
  • An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned communication method.
  • An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned communication method.
  • the terminal device determines the path loss between the terminal device and the first network device according to the path loss offset value, and sends uplink information to the first network device based on the path loss.
  • the embodiment of the present application is applicable to a distributed communication system, and can avoid the situation in which the path loss determined by the terminal device in the distributed communication system is not applicable to the receiving end of the uplink information, thereby reducing or avoiding power consumption waste of the terminal device.
  • FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the structure of a distributed communication system.
  • FIG3 is a schematic flowchart of a communication method 300 according to an embodiment of the present application.
  • Figure 4A is a schematic diagram of a path loss offset value set associated with one or more uplink TRPs in an embodiment of the present application.
  • Figure 4B is a schematic diagram of the one-to-one correspondence between multiple path loss offset value sets and multiple uplink TRPs in an embodiment of the present application.
  • FIG5A is a flowchart 1 of the implementation of Example 4 of the present application.
  • FIG5B is a second implementation flowchart of Example 4 of the present application.
  • FIG. 6 is a schematic diagram of an interaction method between a terminal device and a network device according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a communication method 700 according to an embodiment of the present application.
  • FIG8 is a schematic flowchart of a communication method 800 according to an embodiment of the present application.
  • FIG. 9 is a flow chart of an implementation of a communication method 900 according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a terminal device 1000 according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a second network device 1100 according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a second network device 1200 according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a first network device 1300 according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a terminal device 1400 according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a second network device 1500 according to an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a communication device 1600 according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a chip 1700 according to an embodiment of the present application.
  • LTE Long Term Evolution
  • LTE-A Advanced long term evolution
  • NR New Radio
  • evolution system of NR system LTE on unlicensed spectrum
  • LTE-U LTE on unlicensed spectrum
  • NR-based access to unlicensed spectrum NR-U
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi fifth-generation communication
  • 5G fifth-generation communication
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) scenario.
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.
  • the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
  • UE user equipment
  • the terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in the next generation communication system such as the NR network, or a terminal device in the future evolved Public Land Mobile Network (PLMN) network, etc.
  • STAION, ST in a WLAN
  • a cellular phone a cordless phone
  • Session Initiation Protocol (SIP) phone Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).
  • the terminal device may be a mobile phone, 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, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.
  • VR virtual reality
  • AR augmented reality
  • the terminal device may also be a wearable device.
  • Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.
  • the network device may be a device for communicating with a mobile device
  • the network device may be an access point (AP) in a WLAN, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc.
  • the network device may also be a base station set up in a location such as land or water.
  • a network device can provide services for a cell, and a terminal device communicates with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell.
  • the cell can be a cell corresponding to a network device (e.g., a base station).
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • Fig. 1 exemplarily shows a communication system 100.
  • the communication system includes a network device 110 and two terminal devices 120.
  • the communication system 100 may include multiple network devices 110, and each network device 110 may include other number of terminal devices 120 within its coverage area, which is not limited in the embodiment of the present application.
  • the communication system 100 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), but this is not limited to the embodiments of the present application.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • the network equipment may include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks for communicating with the access network equipment.
  • the access network equipment may be an evolutionary base station (evolutional node B, referred to as eNB or e-NodeB) macro base station, micro base station (also called “small base station”), micro-micro base station, access point (AP), transmission point (TP) or new one in a long-term evolution (LTE) system, a next-generation (mobile communication system) (next radio, NR) system or an authorized auxiliary access long-term evolution (LAA-LTE) system.
  • gNodeB New generation Node B
  • the device with communication function in the network/system in the embodiment of the present application can be called a communication device.
  • the communication device may include a network device and a terminal device with communication function, and the network device and the terminal device may be specific devices in the embodiment of the present application, which will not be repeated here; the communication device may also include other devices in the communication system, such as a network controller, a mobile management entity and other network entities, which are not limited in the embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.
  • corresponding may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.
  • a distributed communication system can also be called a distributed system, a distributedly deployed communication system, a distributedly deployed system, etc.
  • a plurality of TRPs are set up in a distributed communication system, and a plurality of TRPs provide services for the terminal device respectively, which can improve the coverage of the cell edge and provide a more balanced service quality.
  • a large number of TRPs communicate with the terminal device to ensure the robustness of the communication link.
  • FIG. 2 is a schematic diagram of the structure of a distributed communication system. As shown in Figure 2, a plurality of TRPs are set up in a distributed communication system.
  • the terminal device sends uplink information to the TRP, and the TRP then sends the uplink information to the macro base station through an ideal backhaul communication link between the macro base station and the macro base station.
  • the macro base station can directly send downlink information to the terminal device.
  • the terminal device determines the path loss value by measuring the downlink reference signal, and applies the path loss to the calculation of the transmit power of the uplink transmission.
  • the terminal device may not receive the downlink reference signal from the TRP.
  • the terminal device only receives the downlink reference signal configured from the macro base station, determines the path loss based on the downlink reference signal, and determines the transmit power when sending uplink information to the TRP based on the path loss. That is to say, in the related technology, the terminal device determines the path loss between the terminal device and the macro base station, and then determines the transmit power when the terminal device sends uplink information to the TRP based on the path loss.
  • the difference between the path loss between the terminal device and the macro base station and the path loss between the terminal device and the TRP can be very large, and the former is often greater than the latter; therefore, the path loss calculated by the downlink reference signal sent by the macro base station is not applicable to the current environment, resulting in a waste of power consumption of the terminal device.
  • uplink information such as Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS), and Physical Random Access Channel (PRACH)
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • SRS Sounding Reference Signal
  • PRACH Physical Random Access Channel
  • FIG3 is a schematic flow chart of a communication method 300 according to an embodiment of the present application.
  • the method may optionally be applied to the system shown in FIG1 or FIG2 , but is not limited thereto.
  • the method includes at least part of the following contents.
  • the terminal device determines the path loss between the terminal device and the first network device according to the path loss offset value
  • the terminal device sends uplink information to the first network device based on the path loss.
  • the first network device may include a TRP in a distributed communication system.
  • a terminal device may adopt the above method to respectively determine the path loss between the terminal device and each TRP, and send uplink information to the uplink TRP based on the path loss.
  • the terminal device receives indication information sent by the second network device, where the indication information is used to indicate the path loss offset value.
  • the second network device may be a device different from the first network device, for example, the second network device may include a macro base station/base station, or other TRP different from the first network device.
  • the uplink information may include at least one of PUSCH information, PUCCH information, SRS information and PRACH information.
  • the terminal device determines the transmission power based on the path loss, and uses the transmission power to send uplink information to the first network device. This avoids the problem that the path loss determined by the terminal device is not suitable for sending uplink information, thereby reducing or avoiding waste of power consumption of the terminal device.
  • the second network device may determine the path loss between the terminal device and the first network device and send the path loss to the terminal device; the terminal device sends uplink information to the first network device based on the path loss.
  • the terminal device may be configured or indicated by the second network device according to the path loss information and the path loss information between the terminal device and the second network device.
  • the path loss between the second network devices is used to determine the path loss between the terminal device and the first network device.
  • the second network device configures or indicates path loss information for each first network device, and the terminal device determines the path loss between each first network device according to the configuration or indication of the first network device.
  • the path loss information includes a path loss offset value.
  • the path loss information may also include a path loss reference signal index and/or a reference signal power; wherein,
  • the path loss reference signal indicated by the path loss reference signal index is sent by the second network device to the terminal device, and the path loss reference signal may be a channel state information reference signal (CSI-RS, Channel State Information Reference Signal), a synchronization signal block (SSB, Synchronization Signal Block) or a positioning reference signal (PRS, Positioning Reference Signal);
  • CSI-RS Channel State Information Reference Signal
  • SSB Synchronization Signal Block
  • PRS Positioning Reference Signal
  • the path loss reference signal index can be configured by the network device through the radio resource control (RRC) signaling, or updated through the media access control (MAC) control element (CE, Control Element), or determined by a preset rule, or dynamically mapped through the SRS resource indicator (SRS resource indicator, SRI) field in the downlink control information (DCI, Downlink control information). It is worth noting that the network device is a different device from one or more uplink TRPs;
  • RRC radio resource control
  • CE media access control element
  • SRI SRS resource indicator
  • DCI Downlink control information
  • the reference signal power may be determined based on the reference signal power configured by the network device.
  • the reference signal power is the transmit power of the path loss reference signal, such as the transmit power of the CSI-RS, the transmit power of the SSB, or the transmit power of the PRS. It is worth noting that the network device is different from one or more uplink TRPs.
  • the terminal device can determine the path loss with one or more first network devices based on the path loss information.
  • the path loss offset value is configured by the second network device.
  • the second network device receives an SRS from a terminal device, and determines the path loss between the terminal device and the second network device according to the transmit power of the SRS and the RSRP; and the second network device receives the path loss between the terminal device and the first network device from the first network device (or the power used to determine the path loss); the second network device determines the path loss offset value according to the path loss between the terminal device and the second network device, and the path loss between the terminal device and the first network device.
  • the second network device can also configure the path loss offset value in other ways, and the embodiments of the present application do not limit the specific methods.
  • the second network device can configure different path loss offset values for each terminal device, and can also configure the same path loss offset value for multiple terminal devices that are close to each other, so as to reduce the workload of configuring and calculating the path loss offset value.
  • the path loss offset value may be the difference between the path loss between the terminal device and the second network device and the path loss between the terminal device and the first network device.
  • the path loss offset value may be a positive integer or a negative integer, or may be 0.
  • the path loss offset value is default, it indicates that the path loss offset value is a default value, for example, the default value may be 0.
  • the path loss offset value the path loss between the terminal device and the second network device – the path loss between the terminal device and the first network device;
  • the path loss between the terminal device and the first network device can be determined based on the reference signal power when the second network device sends the path loss reference signal, the receiving power of the path loss reference signal received by the terminal, and the path loss offset value, thereby determining the sending power used by the terminal device when sending uplink information to the first network device.
  • the path loss between the terminal device and the first network device the path loss between the terminal device and the second network device - the path loss offset value.
  • the path loss between the terminal device and the second network device can be determined by the power of the reference signal sent by the second network device to the terminal device and the RSRP of the high-level filtering of the reference signal.
  • the path loss offset value the path loss between the terminal device and the first network device ⁇ the path loss between the terminal device and the second network device;
  • the path loss between the terminal device and the first network device can be determined based on the reference signal power when the second network device sends the path loss reference signal, the receiving power of the path loss reference signal received by the terminal, and the path loss offset value, thereby determining the sending power used by the terminal device when sending uplink information to the first network device.
  • the path loss between the terminal device and the first network device the path loss between the terminal device and the second network device + the path loss offset value.
  • the path loss between the terminal device and the second network device can be determined by the power of the reference signal sent by the second network device to the terminal device and the RSRP of the high-level filtering of the reference signal.
  • the RSRP of the higher layer filtering is equivalent to the receiving power of the path loss reference signal received by the terminal device.
  • the RSRP of the higher layer filtering can be expressed by the reference signal receiving power (RSRP) of the higher layer filtering when the terminal device receives the path loss reference signal.
  • the RSRP of the higher layer filtering can be called higher layer filtered RSRP.
  • the RSRP of the higher layer filtering is obtained by the terminal device by measuring the path loss reference signal.
  • the network device configures a path loss offset value for the terminal device to adjust the path loss difference so that the terminal device can determine the path loss between it and one or uplink TRP.
  • the uplink information sent by the terminal device may include at least one of PUSCH information, PUCCH information, SRS information, and PRACH information.
  • the path loss information may include path loss information of the PUSCH, and the terminal device sends the PUSCH information to one or more first network devices (such as an uplink TRP) according to the path loss information;
  • the path loss information may include path loss information of the PUCCH, and the terminal device sends the PUCCH information to one or more first network devices (such as uplink TRP) according to the path loss information;
  • first network devices such as uplink TRP
  • the path loss information may include path loss information of the SRS, and the terminal device sends the SRS information to one or more first network devices (such as an uplink TRP) according to the path loss information;
  • first network devices such as an uplink TRP
  • the path loss information may include path loss information of PRACH, and the terminal device sends PRACH information to one or more first network devices (such as uplink TRP) based on the path loss information.
  • first network devices such as uplink TRP
  • the path loss offset value is associated with one or more of the following transmission parameters:
  • SRI SRS Resource Indicator
  • the type of uplink information may indicate that the uplink information is at least one of PUSCH information, PUCCH information, SRS information or PRACH information.
  • the path loss reference signal index may include one or more of the following: CSI-RS index, CSI-RS resource index, SSB index, SSB resource index, PRS index, PRS resource index.
  • the spatial information may include at least one of the following:
  • TCI Transmission configuration indicator
  • Control Resource Set group information (CORESET Pool Index);
  • the second network device configures multiple path loss offset values for the terminal device, and configures the transmission parameters or transmission parameter combinations associated with each path loss offset value.
  • the first network device is associated with one or more of the above transmission parameters, or the uplink information sent by the terminal device to the first network device is associated with one or more of the above transmission parameters.
  • the terminal device can determine the path loss offset value associated with the first network device or the uplink information based on one or more of the transmission parameters associated with the first network device or the uplink information, and the configuration of the second network device; and determine the path loss between the terminal device and the first network device based on the path loss offset value associated with the first network device or the uplink information.
  • the second network device pre-configures a path loss offset value 1 and a path loss offset value 2 for the terminal device, wherein the path loss offset value 1 is associated with the PUSCH information, and the path loss offset value 2 is associated with the PUCCH information.
  • the path loss offset value associated with the uplink information can be determined to be the path loss offset value 1 based on the association relationship between the path loss offset value 1 and the PUSCH information; if PUCCH information is to be sent, the path loss offset value associated with the uplink information can be determined to be the path loss offset value 2 based on the association relationship between the path loss offset value 2 and the PUCCH information.
  • the second network device pre-configures the path loss offset value 5, the path loss offset value 6, and the path loss offset value 7 for the terminal device, wherein the path loss offset value 5 is associated with the TCI state 1, the path loss offset value 6 is associated with the TCI state 2, and the path loss offset value 7 is associated with the TCI state 3.
  • the terminal device sends uplink information to the first network device, if the first network device is associated with the TCI state 1, it can be determined that the path loss offset value associated with the first network device is the path loss offset value 5 based on the association relationship between the path loss offset value 5 and the TCI state 1.
  • the path loss offset value is associated with a transmission parameter.
  • the terminal device can also use the same method to determine the path loss offset value associated with the first network device, or determine the path loss offset value associated with the uplink information, which will not be repeated here.
  • spatial information may refer to spatial settings, spatial relations, spatial parameters, etc. for uplink information transmission.
  • Spatial information may characterize the spatial relations of uplink and downlink channels transmitted by a terminal device.
  • the spatial relations may include panels, beams, or TRPs of uplink and downlink channels transmitted by a terminal device.
  • the SRS resource set information includes an SRS resource set index, an SRS resource set ID, etc.
  • the SRS resource set may be associated with a panel/beam/TCI state. In practical applications, the terminal device may use the same panel/beam/TCI state as that used to transmit the SRS resource set to transmit the uplink channel.
  • TCI status information can be used for uplink and downlink beam management.
  • a TCI state can include Quasi Co-Location (QCL) type configuration and QCL reference signal configuration.
  • the QCL type configuration can be one of QCL type A (typeA), QCL typeB, QCL typeC or QCL typeD
  • the QCL reference signal configuration can be a cell identifier (ID), a bandwidth part (Bandwidth Part, BWP) ID and a reference signal identifier (such as CSI-RS resource ID or SSB index).
  • QCL TypeA is used to configure Doppler shift, Doppler spread, average delay, and delay spread
  • QCL typeB is used to configure Doppler shift and Doppler spread
  • QCL typeC is used to configure Doppler shift and average delay
  • QCL typeD is used to configure spatial Rx parameters.
  • the terminal device can assume that the large-scale parameters of the above-mentioned target uplink signal and the SSB 1 resource are the same or similar, and the large-scale parameters are determined by the QCL type configuration.
  • TCI states are usually configured.
  • the panel information may include a panel ID, or an index value of a panel, etc., and the embodiment of the present application does not impose any restrictions on this.
  • CORESET Pool Index can be associated with TRP.
  • the network device can configure a CORESET Pool Index for each CORESET to indicate whether it is the same TRP.
  • the value range of CORESET Pool Index is 0 and 1.
  • the terminal device can be considered to be associated with the same TRP.
  • the beam information may include a beam ID, or an index value of the beam, etc., which is not limited in the embodiments of the present application.
  • the TRP information may include TRP ID, or TPR index value, etc., which is not limited in the embodiments of the present application.
  • Reference signal resource information includes CSI-RS resource index, SSB resource index, PRS resource index, SRS resource index, etc.
  • the terminal device can be configured with multiple different spatial parameters, that is, the terminal device can transmit uplink channels through multiple different spatial relationships.
  • the second network device configures the path loss offset value for the terminal device.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the path loss offset value is configured through RRC signaling, that is, the indication information sent by the second network device to the terminal device includes RRC signaling.
  • the second network device configures the path loss offset value for the terminal device through RRC signaling.
  • the RRC signaling can be the first RRC signaling.
  • the path loss offset value is associated with one or more of the following: type of uplink information, path loss reference signal index, SRS resource indication (SRI) index, SRS resource set (SRS Resource Set) information, TCI state information, antenna panel information, CORESET group information, beam information, reference signal resource information.
  • the path loss reference signal index may include: CSI-RS index, CSI-RS resource index, SSB index, SSB resource index, PRS index, or PRS resource index, etc.
  • the path loss reference signal index is configured through independent RRC signaling.
  • the second network device can configure the path loss offset value, the path loss reference signal index, and the reference signal power for the terminal device through different RRC signaling.
  • the second network device can also configure the path loss offset value, the path loss reference signal index, and the reference signal power for the terminal device through the same RRC signaling.
  • the second network device can also configure the path loss offset value, the path loss reference signal index, and the reference signal power for the terminal device through two RRC signalings, and each RRC signaling configures one or two of the path loss offset value, the path loss reference signal index, and the reference signal power.
  • the embodiments of the present application do not limit the specific configuration method.
  • RRC structure that configures the path loss offset value to be associated with the path loss reference signal index:
  • pathloss-delta-Id represents the identifier of the path loss offset value
  • PUSCH-pathloss-delta-Id represents the identifier of the path loss reference signal
  • the path loss offset value can be configured more accurately by associating with the path loss reference signal.
  • the following is an example of an RRC structure that configures the path loss offset value to be associated with the TCI state.
  • the path loss offset values corresponding to different uplink channels can be the same, or configured separately.
  • the path loss offset values of different uplink channels (such as PUSCH, PUCCH, SRS, and PRACH) are configured separately as an example:
  • TCI-StateId represents the identifier of the TCI state
  • PUSCH-pathloss-delta-Id, PUCCH-pathloss-delta-Id, SRS-pathloss-delta-Id, and PRACH-pathloss-delta-Id respectively represent the identifiers of the path loss offset values corresponding to different uplink channels (PUSCH, PUCCH, SRS, and PRACH).
  • the following is an example of an RRC structure that configures the path loss offset value to be associated with the CSI-RS index (or CSI-RS resource index).
  • the path loss offset values corresponding to different uplink channels can be the same, or configured separately.
  • the path loss offset values of different uplink channels (such as PUSCH, PUCCH, SRS, and PRACH) are configured separately as an example:
  • powerControlOffsetSS represents the offset relative to the SSB power.
  • nzp-CSI-RS-ResourceId represents the CSI-RS resource index
  • PUSCH-pathloss-delta-Id, PUCCH-pathloss-delta-Id, SRS-pathloss-delta-Id, and PRACH-pathloss-delta-Id represent the identifiers of the path loss offset values corresponding to different uplink channels (PUSCH, PUCCH, SRS, and PRACH).
  • the path loss offset value is associated with the CSI-RS index (or CSI-RS resource index), which can more accurately compensate for the difference between the path losses.
  • the following is an example of an RRC structure that configures the path loss offset value to be associated with the SSB index (or SSB resource index).
  • the path loss offset values corresponding to different uplink channels can be the same, or configured separately.
  • the path loss offset values of different uplink channels (such as PUSCH, PUCCH, SRS, and PRACH) are configured separately as an example:
  • SSB-Index represents the SSB index
  • PUSCH-pathloss-delta-Id PUCCH-pathloss-delta-Id
  • SRS-pathloss-delta-Id SRS-pathloss-delta-Id
  • PRACH-pathloss-delta-Id respectively represent the identifiers of the path loss offset values corresponding to different uplink channels (PUSCH, PUCCH, SRS, and PRACH).
  • the path loss offset value is associated with the SSB index (or SSB resource index) to more accurately compensate for the difference between the path losses.
  • the following is an example of an RRC structure, through which the path loss offset value is configured to be associated with the SRS resource set index.
  • the path loss offset values corresponding to different uplink channels can be the same, or configured separately.
  • the path loss offset values of different uplink channels are configured separately as an example:
  • SRS-ResourceSetId represents the SRS resource set index
  • SRS-ResourceSetId and PUSCH-pathloss-delta-Id represent the identifiers of the path loss offset values corresponding to different uplink channels (SRS and PUSCH).
  • SRS and PUSCH uplink channels
  • This solution is mainly applicable to the case where the uplink information is PUSCH and SRS.
  • each PUSCH is associated with an SRS resource set. Therefore, the path loss offset value is associated with the SRS resource set index to more accurately compensate for the path loss of PUSCH.
  • the terminal device can determine the path loss between one or more first network devices and send uplink information to the first network device based on the path loss. If the second network device does not configure a path loss offset value for the terminal device, the terminal device defaults to a value of 0 for the path loss offset value when determining the path loss between the terminal device and the first network device.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the path loss offset value is indicated by MAC CE, that is, the indication information sent by the second network device to the terminal device includes MAC CE.
  • the second network device configures the path loss offset value for the terminal device through MAC CE. Since the delay of MAC CE is relatively small compared to RRC signaling, this embodiment uses MAC CE to configure the path loss offset value, and its delay is relatively small. The terminal device can quickly receive the path loss offset and calculate the path loss between one or more first network devices (such as uplink TRP).
  • MAC CE structure 1 The following is a possible MAC CE structure, denoted as MAC CE structure 1, which includes one or more of the following information:
  • an associated path loss offset value is configured for a specific service cell and/or BWP.
  • the path loss offset values corresponding to different uplink channels are the same.
  • the path loss offset values corresponding to different uplink channels can be configured separately.
  • MAC CE structure 1 is modified to include multiple path loss offset values, each path loss offset value corresponds to a different uplink channel (such as PUSCH channel, PUCCH channel, SRS channel, PRACH channel); when the terminal device sends uplink information, it uses the path loss offset value corresponding to the uplink channel to determine the path loss, and sends the uplink information based on the path loss.
  • MAC CE structure 2 which includes one or more of the following information:
  • an associated path loss offset value is configured for one or more of a specific serving cell, BWP, and path loss reference signal.
  • the path loss offset values corresponding to different uplink channels are the same.
  • the path loss offset values corresponding to different uplink channels can be configured separately, for example, MAC CE structure 2 is modified to include multiple path loss offset values, each path loss offset value corresponds to a different uplink channel (such as PUSCH channel, PUCCH channel, SRS channel, PRACH channel); when the terminal device sends uplink information, it uses the path loss offset value corresponding to the uplink channel to determine the path loss, and sends the uplink information based on the path loss.
  • MAC CE structure 3 which includes one or more of the following information:
  • an associated path loss offset value is configured for one or more of a specific service cell, BWP, path loss reference signal and SRI.
  • the path loss offset values corresponding to different uplink channels are the same.
  • the path loss offset values corresponding to different uplink channels can be configured separately.
  • the MAC CE structure 3 is modified to include multiple path loss offset values, each path loss offset value corresponds to a different uplink channel (such as a PUSCH channel, a PUCCH channel, a SRS channel, a PRACH channel); when the terminal device sends uplink information, it uses the path loss offset value corresponding to the uplink channel to determine Path loss and sends uplink information based on the path loss.
  • MAC CE structure 4 which includes one or more of the following information:
  • an associated path loss offset value is configured for one or more of a specific serving cell, BWP, path loss reference signal, and sounding reference signal resource set.
  • the path loss offset values corresponding to different uplink channels are the same.
  • the path loss offset values corresponding to different uplink channels can be configured separately.
  • MAC CE structure 3 is modified to include multiple path loss offset values, each path loss offset value corresponds to a different uplink channel (such as PUSCH channel, PUCCH channel, SRS channel, PRACH channel); when the terminal device sends uplink information, it uses the path loss offset value corresponding to the uplink channel to determine the path loss, and sends the uplink information based on the path loss.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the path loss offset value is configured through RRC signaling and indicated through DCI, that is, the indication information sent by the second network device to the terminal device includes RRC signaling and DCI.
  • the second network device configures one or more path loss offset value sets for the terminal device through RRC signaling, and dynamically maps the path loss offset values corresponding to different spatial information through the fields in the DCI. In this way, the path loss offset value can be adjusted more flexibly and dynamically, and the difference in path loss can be compensated more accurately.
  • Method 1 configure a path loss offset value set through RRC signaling, and indicate the path loss offset values associated with different spatial information in the path loss offset value set through DCI. Since different first network devices (such as uplink TRP) may correspond to different spatial information, indicating the path loss offset values associated with different spatial information through DCI is equivalent to indicating the path loss offset values associated with different first network devices (such as uplink TRP).
  • FIG4A is a schematic diagram of a path loss offset value set associated with one or more uplink TRPs in an embodiment of the present application.
  • a path loss offset value set 0 is configured for a terminal device through RRC signaling, and the path loss offset value set 0 includes 8 path loss offset values; the path loss offset value associated with one or more uplink TRPs in the path loss offset value set 0 is indicated by the DCI.
  • path loss offset value 0 is associated with uplink TRP 0
  • path loss offset value 1 is associated with uplink TRP 1
  • path loss offset value 2 is associated with uplink TRP 2
  • path loss offset value 3 is associated with uplink TRP 3
  • path loss offset value 4 is associated with uplink TRP 4
  • path loss offset value 5 is associated with uplink TRP 5
  • path loss offset value 6 is associated with uplink TRP 6
  • path loss offset value 7 is associated with uplink TRP 7.
  • Method 2 multiple path loss offset value sets are configured through RRC signaling, and the multiple path loss offset value sets correspond one-to-one to multiple first network devices (such as uplink TRP). And the path loss offset values associated with different spatial information in the path loss offset value set are indicated through DCI. Since different first network devices (such as uplink TRP) may correspond to different spatial information, indicating the path loss offset values associated with different spatial information through DCI is equivalent to indicating the path loss offset values associated with different first network devices (such as uplink TRP).
  • FIG4B is a schematic diagram of a one-to-one correspondence between multiple path loss offset value sets and multiple uplink TRPs in an embodiment of the present application.
  • path loss offset value set 0 and path loss offset value set 1 are configured for the terminal device through RRC signaling; wherein, path loss offset value set 0 is associated with uplink TRP 0, and path loss offset value set 1 is associated with uplink TRP 1.
  • the path loss offset values in different path loss offset value sets are the same, partially the same, or completely different.
  • the path loss offset value associated with uplink TRP 0 in path loss offset value set 0 can be indicated, and the path loss offset value associated with uplink TRP 1 in path loss offset value set 1 can be indicated.
  • Method 1 only needs to configure one path loss offset value set, and method 2 needs to configure multiple path loss offset value sets.
  • Method 2 is more flexible, but the mapping method between the DCI field will be more complicated.
  • RRC signaling configures a path loss offset value set; the DCI indicates the path loss offset value corresponding to the first network device in the path loss offset value set.
  • the SRI field, other existing fields, or newly added fields in the DCI may be used to indicate the path loss offset value corresponding to the first network device in the path loss offset value set.
  • the second network device also sends mapping relationship information to the terminal device.
  • the mapping relationship information may be the first information.
  • the terminal device receives the mapping relationship information (the mapping relationship information may be RRC information).
  • the mapping relationship information indicates the mapping relationship between the state value of the SRI field and the path loss offset value in the path loss offset value set.
  • RRC signaling configures a path loss offset value set
  • the path loss offset value set includes path loss offset value 0, path loss offset value 1, path loss offset value 2, path loss offset value 3, path loss offset value 4, path loss offset value 5, path loss offset value 6, path loss offset value 7, path loss offset value 8, path loss offset value 9, path loss offset value 10, path loss offset value 11, path loss offset value 12, path loss offset value 13, path loss offset value 14, path loss offset value 15, path loss offset value 16, path loss offset value 17, path loss offset value 18, path loss offset value 19, path loss offset value 20, path loss offset value 21, path loss offset value 22, path loss offset value 23, path loss offset value 24, path loss offset value 25, path loss offset value 26, path loss offset value 27, path loss offset value 28, path loss offset value 29, path loss offset value 30, path loss offset value 31, path loss offset value 32, path loss offset value 33, path loss offset value 34, path loss offset value 35
  • the DCI indicates the mapping relationship between each state value of the SRI field in the DCI and each path loss offset value in the path loss offset value set.
  • the SRI field value is 00, indicating that it contains a path loss offset value of 0; the SRI field value is 01, indicating that it contains a path loss offset value of 1; the SRI field value is 10, indicating that it contains a path loss offset value of 2; the SRI field value is 11, indicating that it contains a path loss offset value of 3.
  • the terminal device determines the path loss offset value corresponding to the first network device according to the RRC signaling, mapping relationship information and DCI. For example, if the terminal device receives DCI, and the SRI field in the DCI takes a value of 11, it means that the second network device configures the terminal device with a path loss offset value of 3 in the path loss offset value set configured by the RRC signaling.
  • mapping relationship information may be RRC information
  • the mapping relationship information may be the second information.
  • the mapping relationship information configures the mapping relationship between the path loss offset value and the state value of the SRI field in the DCI.
  • the mapping relationship information may include one or more of the following:
  • the RRC structure example is as follows:
  • the path loss offset value is indicated by the SRI field in the DCI.
  • Each state value of the SRI in the DCI corresponds to an index of a path loss offset value, and the path loss offset value associated with the PUSCH is dynamically indicated by different state values of the SRI.
  • RRC signaling configures multiple path loss offset value sets, and different path loss offset value sets are associated with different spatial information;
  • DCI indicates the path loss offset value corresponding to the first network device in each path loss offset value set.
  • the SRI field in the DCI can be used to indicate the path loss offset value corresponding to the first network device in each path loss offset value set.
  • the terminal device receives mapping relationship information (the mapping relationship information may include RRC information), where the mapping relationship information indicates a mapping relationship between the state value of the SRI field and a path loss offset value in a path loss offset value set;
  • mapping relationship information may include RRC information
  • the terminal device determines a set of path loss offset values applied by the first network device
  • the terminal device determines the path loss offset value corresponding to the first network device from the path loss offset value set applied by the first network device based on the RRC signaling, mapping relationship information and DCI.
  • the network device sends mapping relationship information to the terminal device (the mapping relationship information can be RRC information), and the mapping relationship information configures the mapping relationship between the path loss offset value in each path loss offset value set and the status value of the SRI field in the DCI.
  • the mapping relationship information can be RRC information
  • the network device sends a DCI to the terminal device, and the SRI in the DCI indicates the corresponding path loss offset value.
  • the terminal device first determines the path loss offset value set for the uplink TRP application through the TCI state or SRS resource set. After that, the terminal device determines the path loss offset value associated with the PUSCH based on the mapping relationship information and the SRI field in the DCI. Each state value of the SRI field in the DCI corresponds to an index of a path loss offset value, and the path loss offset value associated with the PUSCH is dynamically indicated by different state values of the SRI field.
  • the second network device configures two path loss offset value sets through RRC, wherein path loss offset value set 0 is associated with spatial information 0, and path loss offset value set 1 is associated with spatial information 1.
  • the second network device sends mapping relationship information and DCI to the terminal device.
  • the terminal device sends uplink information to the uplink TRP, it first determines the path loss offset value set applied to the TRP according to the TCI state or SRS resource set of the uplink TRP. Assuming that the TCI state or SRS resource set of the uplink TRP matches spatial information 0, the path loss offset value for the uplink TRP will be determined from the path loss offset value set associated with spatial information 0 (i.e., path loss offset value set 0).
  • the path loss offset value indicated by the DCI can be determined from the path loss offset value set 0, and the path loss offset value is the path loss offset value configured by the second network device for the uplink TRP.
  • the above embodiments 1 to 3 introduce the way in which the second network device configures a path loss offset value for the terminal device, and the path loss offset can be used to determine the path loss when the terminal device sends uplink information to the first network device.
  • the first network device may include an uplink TRP, and the second network device may be a device different from the first network device.
  • the following describes a method in which the second network device determines a path loss offset value.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the terminal device sends an SRS to one or more first network devices (such as an uplink TRP) at a first power.
  • Each first network device receives the SRS, and sends the received power of the SRS and the transmitted power of the SRS (that is, the first power) to the second network device (such as a macro base station, other TRPs different from the first network device, etc.); or, the first network device sends the difference between the transmitted power of the SRS (that is, the first power) and the received power of the SRS to the second network device.
  • the second network device can determine the path loss between the terminal device and the first network device, and then combine the path loss between the terminal device and the second network device to determine the path loss offset value.
  • the path loss offset value can be determined in the following manner:
  • Path loss offset value path loss between the terminal device and the second network device – path loss between the terminal device and the first network device; or,
  • Path loss offset value path loss between the terminal device and the first network device ⁇ path loss between the terminal device and the second network device.
  • the terminal device sends an SRS to the second network device; accordingly, the second network device can calculate the path loss between the terminal device and the second network device according to the sending power and receiving power of the SRS.
  • the terminal device sends the path loss between the terminal device and the second network device to the second network device.
  • the path loss may be determined based on the CSI-RS or SSB.
  • the terminal device may send a layer 1 RSRP value or a layer 3 filtered RSRP value to the second network device, and the second network device determines the path loss between the terminal device and the second network device based on the layer 1 RSRP value or the layer 3 filtered RSRP value and the transmit power of the CSI-RS or SSB.
  • FIG5A is a flowchart of the implementation of Example 4 of the present application.
  • the first network device may be a TRP (or a distributed TRP)
  • the second network device may be a macro base station, a base station, or a TRP different from the first network device.
  • FIG5A shows an example of determining and configuring a path loss offset value for a first network device; for multiple first network devices, the path loss offset value may be determined and configured for each first network device in the manner shown in FIG5A. As shown in FIG5A, the following steps are included:
  • the terminal device sends an SRS to the first network device
  • the first network device receives the SRS, measures the RSRP value of the SRS, and sends the RSRP of the SRS to the second network device.
  • the first network device may also send the transmit power of the SRS to the second network device.
  • the transmit power of the SRS may be stored in advance by the first network device or sent to the first network device by the terminal device.
  • the first network device may send the difference between the transmit power of the SRS and the RSRP to the second network device.
  • the second network device may determine the path loss between the terminal device and the first network device according to the transmit power of the SRS and the RSRP of the SRS, or according to the difference between the transmit power of the SRS and the RSRP of the SRS.
  • the second network device determines a path loss offset value according to the path loss between the terminal device and the first network device and the path loss between the terminal device and the second network device, and the path loss offset value is equal to the difference between the two path losses.
  • the second network device sends path loss information to the terminal device, where the path loss information includes a path loss offset value, and the path loss information may also include a path loss reference signal index and/or a reference signal power.
  • This step may refer to the path loss offset value configuration method described in the aforementioned embodiments 1 to 3, and will not be repeated here.
  • the terminal device calculates the transmission power when sending uplink information according to the path loss offset value, and sends the uplink information.
  • FIG5B is a second implementation flow chart of Example 4 of the present application.
  • the first network device may be a TRP (or a distributed TRP)
  • the second network device may be a macro base station, a base station, or a TRP different from the first network device.
  • FIG5B shows an example of determining and configuring a path loss offset value for a first network device; for multiple first network devices, the path loss offset value may be determined and configured for each first network device in the manner shown in FIG5B. As shown in FIG5B, the following steps are included:
  • the terminal device sends a first SRS to the first network device, and sends a second SRS to the second network device.
  • the first network device receives the first SRS, measures the RSRP value of the first SRS, and sends the RSRP of the first SRS to the second network device.
  • the first network device may also send the transmit power of the first SRS to the second network device.
  • the transmit power of the first SRS may be sent in advance by the uplink first network device or by the terminal device to the first network device; or, if the transmit power of the first SRS is known, the first network device does not need to send the transmit power of the first SRS to the second network device.
  • the first network device may send the difference between the transmit power of the first SRS and the RSRP to the second network device.
  • the second network device may determine the path loss between the terminal device and the first network device according to the transmit power of the first SRS and the RSRP of the first SRS, or according to the difference between the transmit power of the first SRS and the RSRP of the first SRS. Furthermore, the second network device receives the second SRS, measures the RSRP value of the second SRS, and determines the path loss between the terminal device and the second network device according to the transmit power of the second SRS and the RSRP value of the second SRS. The transmit power of the second SRS may be determined by the terminal device. or, if the transmit power of the second SRS is known, the terminal device does not need to send the transmit power of the second SRS to the second network device. Afterwards, the second network device determines a path loss offset value according to the path loss between the terminal device and the first network device and the path loss between the terminal device and the second network device, and the path loss offset value is equal to the difference between the two path losses.
  • the second network device sends path loss information to the terminal device, where the path loss information includes a path loss offset value, and the path loss information may also include a path loss reference signal index and/or a reference signal power.
  • This step may refer to the path loss offset value configuration method described in the aforementioned embodiments 1 to 3, and will not be described in detail here.
  • the terminal device calculates the transmission power when sending uplink information according to the path loss offset value, and sends the uplink information.
  • the power (ie, the above-mentioned first power) when the terminal device sends the SRS (such as the first SRS) to the first network device can be determined in at least the following two ways:
  • the first power is a fixed power: for example, the first power is a predefined power, or the first power is configured through third information;
  • Mode 2 The first power is determined by open-loop power control.
  • Method 1 Use fixed power to send SRS for obtaining path loss offset value:
  • the terminal device sends an SRS for adjusting the path loss at a first power.
  • the first power may be a predefined power value, or the first power is configured by the network device through third information, and the third information may be carried in RRC signaling or MAC CE.
  • the first power is a predefined power value, such as the maximum transmit power, 1/m of the maximum transmit power, the maximum transmit power –n dB, or a fixed power value. 1/m of the maximum transmit power can be understood as the maximum transmit power being reduced proportionally.
  • the value of m can be different, and m is a positive integer.
  • the maximum transmit power –n dB can be understood as reducing the maximum transmit power by n dB as the first power.
  • the value of n dB can be different, and n is a positive integer.
  • the first power is known to the terminal device and the network device.
  • the first power is configured or indicated by the network device according to the channel quality, for example, configured or indicated by RRC signaling or MAC CE.
  • the terminal device sends an SRS to the first network device (such as an uplink TRP)
  • the first network device such as an uplink TRP
  • the second network device such as a macro base station, or other TRPs different from the first network device, etc.
  • the second network device determines the path loss between the terminal device and the first network device based on the difference between the first power of the SRS and the SRS RSRP, and then combines the path loss between the terminal device and the second network device to determine the path loss offset value, and configure it to the terminal device in any way in Examples 1 to 3.
  • the terminal device sends an SRS to the first network device at the first power, and the first network device sends the first power and the RSRP value of the SRS to the second network device through an ideal return link, or sends the difference between the first power and the RSRP value of the SRS to the second network device; the second network device can determine the path loss between the terminal device and the first network device based on the received information.
  • the second network device sends an SSB/CSI-RS to the terminal device, and the terminal device uses the SSB/CSI-RS to determine the path loss between the terminal device and the second network device, and sends the path loss between the terminal device and the second network device to the second network device.
  • the second network device uses the path loss between the terminal device and the first network device and the path loss between the terminal device and the second network device to determine the path loss offset value, and configures the reference signal power and the path loss offset value to the terminal device.
  • the method of sending SRS with fixed power does not require the terminal device to calculate the SRS power, which reduces the complexity of calculating power and makes implementation simpler.
  • Method 2 Use open-loop power control to determine the power of SRS:
  • the power of SRS is determined by the following formula:
  • Po is the target power associated with one or more uplink TRPs configured by the network device, and the path loss is determined based on the specific downlink reference signal configured by the network device.
  • This method requires the terminal device to calculate the SRS transmission power by itself, which is more complicated than method 1, but the SRS power value is more accurate.
  • the power of the terminal device when sending the SRS (such as the second SRS) to the second network device can be determined in at least the following three ways:
  • Mode 1 Calculate the path loss between the terminal device and the second network device according to the path loss reference signal configured by the second network device, and determine the transmit power of the second SRS according to the path loss;
  • Mode 2 The transmission power of the second SRS is fixed.
  • mode 1 for determining the transmission power of the first SRS, which will not be described in detail here.
  • Mode 3 determining the transmission power of the second SRS through open-loop power control.
  • mode 2 determining the transmission power of the first SRS, which will not be described in detail here.
  • the embodiment of the present application also proposes a communication method, which can be applied to a second network device, and is used to configure or indicate a path loss offset value to a terminal device, and the path loss offset value is used to determine the path loss between the terminal device and one or more first network devices.
  • the second network device is a device different from the first network device.
  • the first network device may include a TRP in a distributed communication system
  • the second network device may include a base station, a macro base station, or a TRP different from the first network device.
  • Figure 7 is a schematic flow chart of a communication method 700 according to an embodiment of the present application. The method can optionally be applied to the system shown in Figure 1 or Figure 2, but is not limited thereto. The method includes at least part of the following content.
  • the second network device sends indication information to the terminal device, where the indication information is used to indicate a path loss offset value, where the path loss offset value is used to determine a path loss between the terminal device and the first network device, where the path loss is used by the terminal device to send uplink information to the first network device.
  • the first network device may include a TRP, such as a distributed TRP.
  • the second network device may include a macro base station, a base station, or a TRP different from the first network device.
  • the second network device may configure or indicate path loss information to the terminal device, where the path loss information includes a path loss offset value, and may also include a path loss reference signal index, and/or a reference signal power; wherein,
  • the path loss reference signal index may be configured by the second network device through radio resource control (RRC) signaling, or updated through a media access control (MAC) control element (CE), or determined through a preset rule, or dynamically mapped through an SRS resource indicator (SRS resource indicator, SRI) domain in a downlink control information (DCI).
  • RRC radio resource control
  • MAC media access control
  • CE media access control control element
  • SRS resource indicator SRI domain in a downlink control information
  • DCI downlink control information
  • the reference signal power may be determined according to the reference signal power configured by the second network device.
  • the reference signal power is the transmit power of the path loss reference signal, such as the transmit power of CSI-RS, the transmit power of SSB, or the transmit power of PRS.
  • the path loss offset value is associated with one or more of the following transmission parameters:
  • the spatial information includes at least one of SRS resource set information, transmission configuration indication (TCI) status information, antenna panel information, control resource set (CORESET) group information, beam information, and reference signal resource information.
  • TCI transmission configuration indication
  • CORESET control resource set
  • the path loss reference signal index includes one or more of the following: CSI-RS index, CSI-RS resource index, SSB index, SSB resource index, PRS index, PRS resource index.
  • the indication information includes radio resource control RRC signaling; or,
  • the indication information includes a MAC CE; or,
  • the indication information includes RRC signaling and downlink control information DCI.
  • RRC signaling configures a set of path loss offset values
  • the DCI indicates the path loss offset value corresponding to the first network device in the path loss offset value set.
  • the SRI field or a newly added field in the DCI indicates the path loss offset value corresponding to the first network device in the path loss offset value set.
  • the second network device sends mapping relationship information to the terminal device, where the mapping relationship information indicates a mapping relationship between a state value of the SRI field and a path loss offset value in the path loss offset value set.
  • RRC signaling can configure one or more path loss offset value sets. If multiple path loss offset value sets are configured, different path loss offset value sets are associated with different spatial information; and the DCI indicates the path loss offset value corresponding to the first network device in each path loss offset value set. For example, the SRI field in the DCI indicates the path loss offset value corresponding to the first network device in each path loss offset value set.
  • the specific manner in which the second network device configures and/or indicates the path loss offset value may refer to the above-mentioned embodiments 1 to 3 and will not be described in detail here.
  • the second network device determines a path loss offset value based on a first path loss and a second path loss, wherein the first path loss includes a path loss between the terminal device and one or more first network devices, and the second path loss includes a path loss between the terminal device and the second network device.
  • FIG8 is a schematic flow chart of a communication method 800 according to an embodiment of the present application.
  • the method may optionally be applied to the system shown in FIG1 or FIG2 , but is not limited thereto.
  • the method includes at least part of the following contents.
  • a first network device receives a first SRS
  • the first network device sends the received power of the first SRS to the second network device; or, the first network device sends the difference between the transmitted power of the first SRS and the received power of the first SRS to the second network device.
  • the first network device sends the received power of the first SRS to the second network device; this method is applicable to the case where the transmitted power of the first SRS is known, so the first network device does not need to send the transmitted power of the first SRS to the second network device.
  • the second network device is a device different from the first network device.
  • the first network device includes a TRP, such as a distributed TRP
  • the second network device includes a base station, a macro base station or a TRP.
  • the first network device may receive the first SRS from the terminal device, and by sending the received power of the first SRS and the transmitted power of the first SRS to the second network device, or sending the difference between the transmitted power of the first SRS and the received power of the first SRS to the second network device, or sending the received power of the first SRS to the second network device, the second network device may determine the path loss between the network device and the first network device, thereby further determining the path loss offset value.
  • the received power of the first SRS may refer to the measured value when the first network device receives the first SRS, that is, the RSRP value of the first SRS.
  • the above content introduces a method in which a terminal device determines the path loss between the terminal device and the first network device according to the path loss offset value, and then adjusts the transmission power when sending uplink information to the first network device.
  • the embodiment of the present application also proposes a communication method, which adjusts the transmission power of the terminal device when sending uplink information to the uplink TRP through closed-loop power control.
  • the numerical range of closed-loop power adjustment is expanded in the method proposed in the embodiment of the present application.
  • FIG. 9 is a flow chart of an implementation of a communication method 900 according to an embodiment of the present application, including:
  • the terminal device receives a DCI sent by the second network device, and the number of bits of a transmission power control (TPC) field in the DCI is greater than or equal to 3.
  • TPC transmission power control
  • the terminal device adjusts the transmission power of the uplink information according to the DCI.
  • the terminal device uses the adjusted transmit power to send uplink information to the first network device or the second network device.
  • the first network device may include a TRP
  • the second network device may include a base station, a macro base station, or a TRP different from the first network device.
  • the absolute power adjustment value indicated by the TPC field satisfies the following conditions:
  • the absolute power adjustment value is positive; or,
  • the absolute power adjustment value is greater than or equal to 8dB; or,
  • the absolute power adjustment value is negative; or,
  • the absolute power adjustment value is less than or equal to -8dB.
  • the accumulated power adjustment value indicated by the TPC field satisfies the following conditions:
  • the accumulated power adjustment value is negative; or,
  • the cumulative power adjustment value is less than or equal to -3dB.
  • the absolute power adjustment value and the cumulative power adjustment value indicated by the TPC field can be any integer value that meets the conditions.
  • the absolute power adjustment value can be any integer value greater than or equal to 8dB, such as 9dB, 10dB, 15dB, etc.; for another example, the cumulative power adjustment value can be any integer value less than or equal to -3dB, such as -4dB, -6dB, -8dB, -9dB, etc.
  • the absolute power adjustment value and the cumulative power adjustment value indicated by the TPC field can also be values that meet certain rules, such as the absolute power adjustment value and the cumulative power adjustment value are multiples of 3, multiples of 4, multiples of 6, multiples of 8, etc.
  • the number of bits of the TPC field is 3 bits, and the adjustment range of the cumulative power adjustment value and the absolute power adjustment value is increased, as shown in Table 1.
  • the increased contents include: (1) The value of the TPC field is 4, indicating that the cumulative power adjustment value of PUSCH or SRS is -12dB, and the absolute power adjustment value of PUSCH or SRS is -12dB; (2) The value of the TPC field is 5, indicating that the cumulative power adjustment value of PUSCH or SRS is -9dB, and the absolute power adjustment value of PUSCH or SRS is -8dB; (3) The value of the TPC field is 6, indicating that the cumulative power adjustment value of PUSCH or SRS is -6dB, and the absolute power adjustment value of PUSCH or SRS is 8dB; (4) The value of the TPC field is 7, indicating that the cumulative power adjustment value of PUSCH or SRS is -3dB, and the absolute power adjustment value of PUSCH or SRS is 12dB
  • the number of bits of the TPC field is extended to 3 bits, and the adjustment range of negative values is increased, as shown in Table 2.
  • the added contents include: (1) The value of the TPC field is 4, indicating that the cumulative power adjustment value of the PUCCH is -12dB; (2) The value of the TPC field is 5, indicating that the cumulative power adjustment value of the PUCCH is -9dB; (3) The value of the TPC field is 6, indicating that the cumulative power adjustment value of the PUCCH is -6dB; (4) The value of the TPC field is 7, indicating that the cumulative power adjustment value of the PUCCH is -3dB.
  • different uplink TRPs may correspond to different closed-loop adjustment states, and each closed-loop adjustment state may correspond to its own TPC.
  • the number of increased closed-loop adjustment states is greater than 2, for example, 4.
  • a power adjustment value with a larger numerical range (including absolute power adjustment value and cumulative power adjustment value) can be indicated, thereby reducing the number of closed-loop power adjustments and achieving a suitable power value through fewer adjustments, thereby saving DCI overhead.
  • the DCI used by the terminal device for closed-loop power adjustment may be sent by the network device.
  • the second network device sends a DCI to the terminal device, and the number of bits of the TPC field in the DCI is greater than or equal to 3; the DCI is used by the terminal device to determine the transmission power of the uplink information.
  • the characteristics of the absolute power adjustment value and the cumulative power adjustment value indicated by the TPC field have been introduced in the above content and will not be repeated here.
  • a second network device (such as a macro base station, TRP, etc.) sends a DCI to a terminal device, where the DCI is used for the terminal device to adjust the transmission power of uplink information using a closed-loop power control adjustment method.
  • the uplink information is information sent by the terminal device to one or more first network devices (such as uplink TRP); the number of bits of the TPC field in the DCI is greater than or equal to 3.
  • FIG10 is a schematic block diagram of a terminal device 1000 according to an embodiment of the present application.
  • the terminal device 1000 may include:
  • the first processing module 1010 determines the path loss between the terminal device and the first network device according to the path loss offset value
  • the first transceiver module 1020 is configured to send uplink information to the first network device based on the path loss.
  • the first transceiver module 1020 is further configured to receive indication information sent by the second network device, where the indication information is used to indicate a path loss offset value.
  • the path loss offset value is associated with one or more of the following transmission parameters:
  • the spatial information includes at least one of the following:
  • the path loss reference signal index includes one or more of the following: a CSI-RS index, a CSI-RS resource index, an SSB index, an SSB resource index, a fixed PRS index, and a PRS resource index.
  • the first network device is associated with one or more of the transmission parameters.
  • the first processing module 1010 is used to determine a path loss offset value associated with the uplink information based on one or more transmission parameters associated with the uplink information; and determine the path loss between the terminal device and the first network device based on the path loss offset value associated with the uplink information.
  • the indication information includes radio resource control RRC signaling; or,
  • the indication information includes a MAC CE; or,
  • the indication information includes RRC signaling and downlink control information DCI.
  • the indication information includes RRC signaling and DCI, including:
  • RRC signaling configures a path loss offset value set
  • the DCI indicates the path loss offset value corresponding to the uplink information in the path loss offset value set.
  • the path loss offset value corresponding to the uplink information in the path loss offset value set indicated by the DCI includes:
  • the resource indication domain SRI field or a newly added field in the DCI indicates the path loss offset value corresponding to the uplink information in the path loss offset value set.
  • the first transceiver module 1020 is further configured to receive mapping relationship information, where the mapping relationship information indicates a mapping relationship between a state value of the SRI field and a path loss offset value in a path loss offset value set;
  • the first processing module is used to determine the path loss offset value corresponding to the uplink information according to the RRC signaling, the mapping relationship information and the DCI.
  • the first transceiver module 1020 is further configured to receive mapping relationship information, where the mapping relationship information indicates a mapping relationship between a state value of the SRI field and a path loss offset value in a path loss offset value set;
  • the first processing module 1010 is used to determine a set of path loss offset values applied by the first network device; the terminal device determines the path loss offset value corresponding to the uplink information according to the RRC signaling, mapping relationship information and DCI.
  • the first transceiver module 1020 is further used to send a first SRS to the first network device at a first power, where the first SRS is used to determine a path loss offset value.
  • the first power is a predefined power
  • the first power is configured by third information.
  • the third information is carried by RRC signaling or MAC CE.
  • the first power is determined by open loop power control.
  • the first transceiver module 1020 is further used to send a second SRS to the second network device; or send a path loss between the terminal device and the second network device to the second network device.
  • the uplink information includes: at least one of: PUSCH information, PUCCH information, SRS information, and PRACH information.
  • the terminal device 1000 of the embodiment of the present application can implement the corresponding functions of the terminal device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the terminal device 1000 can be found in the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by the various modules (sub-modules, units or components, etc.) of the terminal device 1000 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.), or by the same module (sub-module, unit or component, etc.).
  • FIG11 is a schematic block diagram of a second network device 1100 according to an embodiment of the present application.
  • the second network device 1100 may include:
  • the second transceiver module 1110 is used to send indication information to the terminal device, the indication information is used to indicate a path loss offset value, the path loss offset value is used to determine the path loss between the terminal device and the first network device, and the path loss is used by the terminal device to send uplink information to the first network device.
  • the path loss offset value is associated with one or more of the following transmission parameters:
  • the spatial information includes at least one of the following:
  • the path loss reference signal index includes one or more of the following: CSI-RS index, CSI-RS resource index, SSB index, SSB resource index, PRS index, PRS resource index.
  • the indication information includes RRC signaling; or,
  • the indication information includes a MAC CE; or,
  • the indication information includes RRC signaling and DCI.
  • the indication information includes RRC signaling and DCI, including:
  • RRC signaling configures a path loss offset value set
  • the DCI indicates the path loss offset value corresponding to the uplink information in the path loss offset value set.
  • the path loss offset value corresponding to the uplink information in the path loss offset value set indicated by the DCI includes:
  • the SRI field or the newly added field in the DCI indicates the path loss offset value corresponding to the uplink information in the path loss offset value set.
  • FIG12 is a schematic block diagram of a second network device 1200 according to an embodiment of the present application.
  • the second network device 1200 includes a second transceiver module 1110, and further includes:
  • the second processing module 1220 is used to send mapping relationship information to the terminal device, where the mapping relationship information indicates a mapping relationship between a state value of the SRI field and a path loss offset value in a path loss offset value set.
  • the second processing module 1220 is further configured to:
  • a path loss offset value is determined
  • the first path loss includes a path loss between the terminal device and one or more first network devices
  • the second path loss includes a path loss between the terminal device and the second network device.
  • the second network device 1100 and the second network device 1200 of the embodiment of the present application can implement the corresponding functions of the second network device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the second network device 1100 and the second network device 1200 can be found in the corresponding description in the above method embodiment, which will not be repeated here.
  • the functions described in the various modules (sub-modules, units or components, etc.) in the second network device 1100 and the second network device 1200 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.), or by the same module (sub-module, unit or component, etc.).
  • FIG13 is a schematic block diagram of a first network device 1300 according to an embodiment of the present application.
  • the first network device 1300 may include: a third transceiver module 1310, which is used to:
  • the receiving power of the first SRS is sent to the second network device; or, the difference between the sending power of the first SRS and the receiving power of the first SRS is sent to the second network device.
  • the first network device 1300 of the embodiment of the present application can implement the corresponding functions of the first network device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the first network device 1300 can be found in the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by the various modules (sub-modules, units or components, etc.) in the first network device 1300 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.), or by the same module (sub-module, unit or component, etc.).
  • FIG14 is a schematic block diagram of a terminal device 1400 according to an embodiment of the present application.
  • the terminal device 1400 may include:
  • the fourth transceiver module 1410 is configured to receive a DCI sent by the second network device, where the number of bits of a transmission power control TPC field in the DCI is greater than or equal to 3;
  • the third processing module 1420 is configured to adjust the transmission power of uplink information according to the DCI.
  • the fourth transceiver module 1410 is further configured to use the adjusted transmit power to send uplink information to the first network device or the second network device.
  • the absolute power adjustment value indicated by the TPC field satisfies the following conditions:
  • the absolute power adjustment value is positive; or,
  • the absolute power adjustment value is greater than or equal to 8dB; or,
  • the absolute power adjustment value is negative; or,
  • the absolute power adjustment value is less than or equal to -8dB.
  • the accumulated power adjustment value indicated by the TPC field satisfies the following conditions:
  • the accumulated power adjustment value is negative; or,
  • the cumulative power adjustment value is less than or equal to -3dB.
  • the terminal device 1400 of the embodiment of the present application can implement the corresponding functions of the terminal device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to each module (sub-module, unit or component, etc.) in 1400 can be found in the corresponding description in the above method embodiment, which will not be repeated here.
  • the functions described by each module (sub-module, unit or component, etc.) in the terminal device 1400 of the application embodiment can be implemented by different modules (sub-module, unit or component, etc.) or by the same module (sub-module, unit or component, etc.).
  • FIG15 is a schematic block diagram of a second network device 1500 according to an embodiment of the present application.
  • the second network device 1500 may include:
  • the fifth transceiver module 1510 is used to send DCI to the terminal device, and the number of bits of the transmission power control TPC field in the DCI is greater than or equal to 3; the DCI is used by the terminal device to determine the transmission power of uplink information.
  • the absolute power adjustment value indicated by the TPC field satisfies the following conditions:
  • the absolute power adjustment value is positive; or,
  • the absolute power adjustment value is greater than or equal to 8dB; or,
  • the absolute power adjustment value is negative; or,
  • the absolute power adjustment value is less than or equal to -8dB.
  • the accumulated power adjustment value indicated by the TPC field satisfies the following conditions:
  • the accumulated power adjustment value is negative; or,
  • the cumulative power adjustment value is less than or equal to -3dB.
  • the second network device 1500 of the embodiment of the present application can implement the corresponding functions of the terminal device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the second network device 1500 can be found in the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by the various modules (sub-modules, units or components, etc.) in the second network device 1500 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.), or by the same module (sub-module, unit or component, etc.).
  • Fig. 16 is a schematic structural diagram of a communication device 1600 according to an embodiment of the present application.
  • the communication device 1600 includes a processor 1610, and the processor 1610 can call and run a computer program from a memory to enable the communication device 1600 to implement the method in the embodiment of the present application.
  • the communication device 1600 may further include a memory 1620.
  • the processor 1610 may call and run a computer program from the memory 1620, so that the communication device 1600 implements the method in the embodiment of the present application.
  • the memory 1620 may be a separate device independent of the processor 1610 , or may be integrated into the processor 1610 .
  • the communication device 1600 may further include a transceiver 1630 , and the processor 1610 may control the transceiver 1630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.
  • the transceiver 1630 may include a transmitter and a receiver.
  • the transceiver 1630 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1600 may be a terminal device of an embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail for the sake of brevity.
  • the terminal device includes a memory, a processor, and a transceiver.
  • the memory may store a program executed by the terminal device; the processor executes the program, specifically, the processor may execute the actions executed by the first processing module 1010 or the third processing module 1420; the transceiver is controlled by the processor to execute the actions executed by the first transceiver module 1020 or the fourth transceiver module 1410.
  • the communication device 1600 may be the first network device of the embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the first network device in each method of the embodiment of the present application, which will not be described in detail for the sake of brevity.
  • the first network device includes a memory, a processor, and a transceiver.
  • the memory may store a program executed by the first network device; the processor executes the program; and the transceiver is controlled by the processor to execute the actions executed by the third transceiver module 1310.
  • the communication device 1600 may be the second network device of the embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the second network device in each method of the embodiment of the present application, which will not be described in detail for the sake of brevity.
  • the second network device includes a memory, a processor, and a transceiver.
  • the memory may store a program executed by the second network device; the processor executes the program, specifically, the processor may execute the action executed by the second processing module 1220; the transceiver is controlled by the processor to execute the action executed by the second transceiver module 1110 or the fifth transceiver module 1510.
  • Fig. 17 is a schematic structural diagram of a chip 1700 according to an embodiment of the present application.
  • the chip 1700 includes a processor 1710, and the processor 1710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the chip 1700 may further include a memory 1720.
  • the processor 1710 may call and run a computer program from the memory 1720 to implement the method executed by the terminal device or the network device in the embodiment of the present application.
  • the memory 1720 may be a separate device independent of the processor 1710 , or may be integrated into the processor 1710 .
  • the chip 1700 may further include an input interface 1730.
  • the processor 1710 may control the input interface 1730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.
  • the chip 1700 may further include an output interface 1740.
  • the processor 1710 may control the output
  • the interface 1740 communicates with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
  • the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
  • the chips used in the network device and the terminal device may be the same chip or different chips.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.
  • the memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory.
  • the volatile memory may be a random access memory (RAM).
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

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Abstract

本申请涉及通信方法、终端设备和网络设备，其中，通信方法，包括：终端设备根据路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗；终端设备基于路径损耗，向第一网络设备发送上行信息。本申请能够降低或避免终端设备的功耗浪费。

Description

通信方法、终端设备和网络设备 技术领域
本申请涉及通信领域，更具体地，涉及通信方法、终端设备和网络设备。
背景技术
分布式通信系统有利于终端节能，并且有利于提高上行吞吐量。在分布式通信系统中，部署多个发送接收点(Transmission Reception Point，TRP)。对于上行方向的传输，终端设备向TRP发送上行信息，TRP再通过与宏基站之间的理想回程通信链路将该上行信息传输至宏基站。对于下行方向的传输，宏基站将下行信息发送至终端设备。由于TRP不会向终端设备发送下行参考信号，分布式通信系统中终端设备如何确定向TRP发送上行信息时的路径损耗是待解决的问题。
发明内容
本申请实施例提供一种通信方法，可以用于分布式通信系统中的终端设备确定路径损耗、并基于该路径损耗发送上行信息，从而降低或避免终端设备的功耗浪费。
本申请实施例提供一种通信方法，包括：
终端设备根据路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗；
终端设备基于该路径损耗，向该第一网络设备发送上行信息。
本申请实施例提供一种通信方法，包括：
第二网络设备向终端设备发送指示信息，该指示信息用于指示路径损耗偏移值，该路径损耗偏移值用于确定终端设备与第一网络设备之间的路径损耗，该路径损耗用于终端设备向第一网络设备发送上行信息。
本申请实施例提供一种通信方法，包括：
第一网络设备接收第一SRS；
第一网络设备将该第一SRS的接收功率发送至第二网络设备；或者，第一网络设备将第一SRS的发送功率与第一SRS的接收功率的差值发送至第二网络设备。
本申请实施例提供一种通信方法，包括：
终端设备接收第二网络设备发送的DCI，DCI中的TPC字段的比特数大于或等于3；
该终端设备根据DCI，调整上行信息的发送功率。
本申请实施例提供一种通信方法，包括：
第二网络设备向终端设备发送DCI，DCI中的TPC字段的比特数大于或等于3；DCI用于终端设备确定上行信息的发送功率。
本申请实施例提供一种终端设备，包括：
第一处理模块，根据路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗；
第一收发模块，用于基于该路径损耗，向第一网络设备发送上行信息。
本申请实施例提供一种第二网络设备，包括：
第二收发模块，用于向终端设备发送指示信息，该指示信息用于指示路径损耗偏移值，该路径损耗偏移值用于确定终端设备与第一网络设备之间的路径损耗，该路径损耗用于终端设备向第一网络设备发送上行信息。
本申请实施例提供一种第一网络设备，包括：第三收发模块，用于，
接收第一SRS；
将该第一SRS的接收功率发送至第二网络设备；或者，将第一SRS的发送功率与第一SRS的接收功率的差值发送至第二网络设备。
本申请实施例提供一种终端设备，包括：
第四收发模块，用于接收第二网络设备发送的DCI，DCI中的传输功率控制TPC字段的比特数大于或等于3；
第三处理模块，用于根据DCI，调整上行信息的发送功率。
本申请实施例提供一种第二网络设备，包括：
第五收发模块，用于向终端设备发送DCI，DCI中的TPC字段的比特数大于或等于3；DCI用于终 端设备确定上行信息的发送功率。
本申请实施例还提供一种通信设备，包括处理器、存储器和收发器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序、并控制该收发器，以使该设备执行上述的通信方法。
本申请实施例提供一种芯片，用于实现上述的通信方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行上述的通信方法。
本申请实施例提供一种计算机可读存储介质，用于存储计算机程序，当该计算机程序被设备运行时使得该设备执行上述的通信方法。
本申请实施例提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述的通信方法。
本申请实施例提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述的通信方法。
本申请实施例，终端设备根据路径损耗偏移值，确定与第一网络设备之间的路径损耗，并基于该路径损耗向第一网络设备发送上行信息，本申请实施例适用于分布式通信系统，能够避免分布式通信系统中终端设备确定出的路径损耗不适用于上行信息的接收端，从而降低或避免终端设备的功耗浪费。
附图说明
图1是根据本申请实施例的应用场景的示意图。
图2是一种分布式通信系统的结构示意图。
图3是根据本申请一实施例的通信方法300的示意性流程图。
图4A是本申请实施例中一个路径损耗偏移值集合与一个或多个上行TRP相关联的示意图。
图4B是本申请实施例中多个路径损耗偏移值集合与多个上行TRP一一对应的示意图。
图5A是本申请实施例4的实现流程图一。
图5B是本申请实施例4的实现流程图二。
图6是根据本申请一实施例中终端设备与网络设备的交互方式示意图。
图7是根据本申请一实施例的通信方法700的示意性流程图。
图8是根据本申请一实施例的通信方法800的示意性流程图。
图9是根据本申请一实施例的通信方法900的实现流程图。
图10是根据本申请一实施例的终端设备1000的示意性框图。
图11是根据本申请一实施例的第二网络设备1100的示意性框图。
图12是根据本申请一实施例的第二网络设备1200的示意性框图。
图13是根据本申请一实施例的第一网络设备1300的示意性框图。
图14是根据本申请一实施例的终端设备1400的示意性框图。
图15是根据本申请一实施例的第二网络设备1500的示意性框图。
图16是根据本申请实施例的通信设备1600示意性结构图。
图17是根据本申请实施例的芯片1700的示意性结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或其它通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信，或车联网(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
在一种实施方式中，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布 网场景。
在一种实施方式中，本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STAION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中，终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中，网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(Access Point，AP)，可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
图1示例性地示出了一种通信系统100。该通信系统包括一个网络设备110和两个终端设备120。在一种实施方式中，该通信系统100可以包括多个网络设备110，并且每个网络设备110的覆盖范围内可以包括其它数量的终端设备120，本申请实施例对此不做限定。
在一种实施方式中，该通信系统100还可以包括移动性管理实体(Mobility Management Entity，MME)、接入与移动性管理功能(Access and Mobility Management Function，AMF)等其它网络实体，本申请实施例对此不作限定。
其中，网络设备又可以包括接入网设备和核心网设备。即无线通信系统还包括用于与接入网设备进行通信的多个核心网。接入网设备可以是长期演进(long-term evolution，LTE)系统、下一代(移动通信系统)(next radio，NR)系统或者授权辅助接入长期演进(authorized auxiliary access long-term evolution，LAA-LTE)系统中的演进型基站(evolutional node B，简称可以为eNB或e-NodeB)宏基站、微基站(也称为“小基站”)、微微基站、接入站点(access point，AP)、传输站点(transmission point，TP)或新一 代基站(new generation Node B，gNodeB)等。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统为例，通信设备可包括具有通信功能的网络设备和终端设备，网络设备和终端设备可以为本申请实施例中的具体设备，此处不再赘述；通信设备还可包括通信系统中的其它设备，例如网络控制器、移动管理实体等其它网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
为便于理解本申请实施例的技术方案，以下对本申请实施例的相关技术进行说明，以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。
在通信网络中，虽然基站具有足够的发射功率来向终端设备发送信号，但是终端设备的发射功率和电池存储可能相对有限。另一方面，上行吞吐量的进一步提升是待解决的问题。为了解决前述问题，提出了分布式通信系统。分布式通信系统又可以称为分布式系统、分布式部署的通信系统、分布式部署的系统等。分布式通信系统中设置多个TRP，多个TRP分别为终端设备提供服务，能够改善小区边缘的覆盖，提供更加均衡的服务质量，大量TRP与终端设备通信能够保障通信链路的鲁棒性。图2是一种分布式通信系统的结构示意图。如图2所示，分布式通信系统中设置多个TRP。上行传输时，终端设备向TRP发送上行信息，TRP再通过与宏基站之间的理想回程通信链路将该上行信息发送至宏基站。下行传输时，宏基站可以直接将下行信息发送至终端设备。
现在技术中，终端设备通过对下行参考信号的测量来确定路径损耗值，并将该路径损耗应用于上行传输的发射功率的计算。在分布式通信系统中，终端设备可能不会接收来自TRP的下行参考信号，例如，终端设备只接收来自宏基站配置的下行参考信号，根据该下行参考信号确定路径损耗，并且根据该路径损耗确定向TRP发送上行信息时的发射功率。也就是说，相关技术中，终端设备确定终端设备与宏基站之间的路径损耗，再基于该路径损耗确定终端设备向TRP发送上行信息时的发送功率。然而，在分布式通信系统中，终端设备与宏基站之间的路径损耗、终端设备与TRP之间的路径损耗，这两者之间的差异会很大，前者往往会大于后者；因此，通过宏基站发送的下行参考信号计算的路径损耗并不适用于当前的环境，造成终端设备的功耗浪费。对于物理上行共享信道(Physical Uplink Shared Channel，PUSCH)信息、物理上行控制信道(Physical Uplink Control Channel，PUCCH)信息、探测参考信号(Sounding Reference Signal，SRS)、物理随机接入信道(Physical Random Access Channel，PRACH)信息等上行信息，均存在前述的终端设备确定的路径损耗不适用于发送上行信息的问题。
图3是根据本申请一实施例的通信方法300的示意性流程图。该方法可选地可以应用于图1或图2所示的系统，但并不仅限于此。该方法包括以下内容的至少部分内容。
S310、终端设备根据路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗；
S320、终端设备基于该路径损耗，向该第一网络设备发送上行信息。
其中，第一网络设备可以包括分布式通信系统中的TRP。在分布式通信网络中，终端设备可以采用上述方式，分别确定该终端设备与各个TRP之间的路径损耗，并基于该路径损耗，向上行TRP发送上行信息。
在一些实施方式中，终端设备接收第二网络设备发送的指示信息，指示信息用于指示路径损耗偏移值。第二网络设备可以是与第一网络设备不同的设备，例如，第二网络设备可以包括宏基站/基站、或者不同于第一网络设备的其它TRP。
其中，该上行信息可以包括PUSCH信息、PUCCH信息、SRS信息和PRACH信息中的至少之一。
由于终端设备根据路径损耗偏移值确定出与第一网络设备之间的路径损耗、而不是与其它网络设备之间的路径损耗，终端设备基于该路径损耗确定发送功率，并采用该发送功率向第一网络设备发送上行信息，能够避免终端设备确定的路径损耗不适用于发送上行信息的问题，减少或避免终端设备的功耗浪费。
在另一些实施方式中，可以由第二网络设备确定终端设备与第一网络设备之间的路径损耗，并将该路径损耗发送至终端设备；终端设备基于该路径损耗，向第一网络设备发送上行信息。
在一些实施方式中，终端设备可以根据第二网络设备配置或指示的路径损耗信息、以及终端设备与 第二网络设备之间的路径损耗，确定终端设备与第一网络设备之间的路径损耗。例如，第二网络设备针对各个第一网络设备分别配置或指示路径损耗信息，终端设备根据第一网络设备的配置或指示，分别确定与各个第一网络设备之间的路径损耗。
在一些实施方式中，路径损耗信息包括路径损耗偏移值。路径损耗信息还可以包括路径损耗参考信号索引、和/或参考信号功率；其中，
该路径损耗参考信号索引所指示的路径损耗参考信号是第二网络设备向终端设备发送的，该路径损耗参考信号可以是信道状态信息参考信号(CSI-RS，Channel State Information Reference Signal)、同步信号块(SSB，Synchronization Signal Block)或定位参考信号(PRS，Positioning Reference Signal)；
路径损耗参考信号索引可以是网络设备通过无线资源控制(RRC，Radio Resource Control)信令配置，或者是通过媒体接入控制(MAC，Media Access Control)控制元素(CE，Control Element)更新的，或者是通过预设规则确定的，或者是通过下行控制信息(DCI，Downlink control information)中的SRS资源指示域(SRS resource indicator，SRI)域动态映射的。值得注意的是，该网络设备与一个或多个上行TRP是不同的设备；
参考信号功率可以是根据网络设备配置的参考信号功率确定的。参考信号功率是路径损耗参考信号的发送功率，如可以是CSI-RS的发送功率、SSB的发送功率、或者PRS的发送功率。值得注意的是，该网络设备与一个或多个上行TRP是不同的设备。
终端设备根据路径损耗信息，可以确定与一个或多个第一网络设备的路径损耗。
路径损耗偏移值是第二网络设备配置的。其中一种可能的实现方案是，第二网络设备从终端设备接收SRS，根据该SRS的发送功率和RSRP确定终端设备与第二网络设备之间的路径损耗；并且，第二网络设备从第一网络设备接收终端设备与第一网络设备之间的路径损耗(或者用于确定该路径损耗的功率)；第二网络设备根据终端设备与第二网络设备之间的路径损耗、以及终端设备与第一网络设备之间的路径损耗，确定路径损耗偏移值。第二网络设备还可以采用其它方式配置路径损耗偏移值，本申请实施例对具体方式不做限制。另外，本申请实施例中，第二网络设备可以为每个终端设备配置不同的路径损耗偏移值，也可以对位置较近的多个终端设备配置同样的路径损耗偏移值，以减少配置计算路径损耗偏移值的工作量。
路径损耗偏移值可以是终端设备与第二网络设备之间的路径损耗和终端设备与第一网络设备之间的路径损耗的差值。路径损耗偏移值可以为正整数或负整数，也可以为0。当路径损耗偏移值为缺省时，表示路径损耗偏移值为默认值，例如该默认值可以为0。
例如，路径损耗偏移值＝终端设备与第二网络设备之间的路径损耗–终端设备与第一网络设备之间的路径损耗；
相应地，终端设备在向第一网络设备发送上行信息时，根据第二网络设备发送路径损耗参考信号时的参考信号功率、终端接收路径损耗参考信号的接收功率、以及该路径损耗偏移值，可以确定终端设备与第一网络设备之间的路径损耗，从而确定终端设备向第一网络设备发送上行信息时所采用的发送功率。
例如，终端设备与第一网络设备之间的路径损耗＝终端设备与第二网络设备之间的路径损耗–路径损耗偏移值。比如，终端设备与第二网络设备之间的路径损耗，可以通过第二网络设备向终端设备发送的参考信号的功率与该参考信号的高层滤波的RSRP确定。
或者，路径损耗偏移值＝终端设备与第一网络设备之间的路径损耗–终端设备与第二网络设备之间的路径损耗；
相应地，终端设备在向第一网络设备发送上行信息时，根据第二网络设备发送路径损耗参考信号时的参考信号功率、终端接收路径损耗参考信号的接收功率、以及该路径损耗偏移值，可以确定终端设备与第一网络设备之间的路径损耗，从而确定终端设备向第一网络设备发送上行信息时所采用的发送功率。
例如，终端设备与第一网络设备之间的路径损耗＝终端设备与第二网络设备之间的路径损耗+路径损耗偏移值。比如，终端设备与第二网络设备之间的路径损耗，可以通过第二网络设备向终端设备发送的参考信号的功率与该参考信号的高层滤波的RSRP确定。
上述两种示例中，高层滤波的RSRP等价于终端设备接收路径损耗参考信号的接收功率。高层滤波的RSRP可以采用终端设备接收该路径损耗参考信号时的高层滤波的参考信号接收功率(Reference Signal Receiving Power，RSRP)表示。高层滤波的RSRP可以称为higher layer filtered RSRP。高层滤波的RSRP是终端设备通过测量路径损耗参考信号得到的。
从高层滤波的RSRP及参考信号功率可以看出，这两项都是根据第二网络设备发送的路径损耗参考信号确定的，通过这两项计算出的路径损耗是终端设备与第二网络设备之间的路径损耗，与终端设备与一个或多个TRP之间的路径损耗是有差距的；因此，网络设备为终端设备配置路径损耗偏移值来调整该路径损耗差，以便终端设备确定与一个或上行TRP之间的路径损耗。
在一些实施方式中，终端设备发送的上行信息可以包括PUSCH信息、PUCCH信息、SRS信息和PRACH信息中的至少之一。相应地，
路径损耗信息可以包括PUSCH的路径损耗信息，终端设备根据该路径损耗信息向一个或多个第一网络设备(如上行TRP)发送PUSCH信息；
路径损耗信息可以包括PUCCH的路径损耗信息，终端设备根据该路径损耗信息向一个或多个第一网络设备(如上行TRP)发送PUCCH信息；
路径损耗信息可以包括SRS的路径损耗信息，终端设备根据该路径损耗信息向一个或多个第一网络设备(如上行TRP)发送SRS信息；
路径损耗信息可以包括PRACH的路径损耗信息，终端设备根据该路径损耗信息向一个或多个第一网络设备(如上行TRP)发送PRACH信息。
在一些实施方式中，路径损耗偏移值与以下传输参数中的一项或多项相关联：
上行信息的类型；
路径损耗参考信号索引；
SRS资源指示(SRS Resource Indicator，SRI)索引；
空间信息。
其中，上行信息的类型可以指示上行信息是PUSCH信息、PUCCH信息、SRS信息或PRACH信息中的至少之一。
路径损耗参考信号索引可以包括以下中的一个或多个：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、PRS索引、PRS资源索引。
空间信息可以包括以下至少之一：
SRS资源集合信息；
传输配置指示(Transmission configuration indicator，TCI)状态信息；
天线面板(panel)信息；
控制资源集(Control Resource Set，CORESET)组信息(CORESET Pool Index)；
波束(beam)信息；
参考信号资源信息。
由上述内容可见，第二网络设备向终端设备配置多个路径损耗偏移值，并且配置各个路径损耗偏移值所关联的传输参数或传输参数组合。在一些实施方式中，第一网络设备与上述传输参数中的一项或多项相关联，或者，终端设备向第一网络设备发送的上行信息与上述传输参数中的一项或多项相关联。终端设备在发送上行信息时，可以根据该第一网络设备或该上行信息关联的传输参数中的一项或多项、以及第二网络设备的配置，确定与该第一网络设备或上行信息关联的路径损耗偏移值；并根据与该第一网络设备或上行信息关联的路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗。
例如，以路径损耗偏移值与上行信息的类型相关联为例，第二网络设备预先为终端设备配置路径损耗偏移值1和路径损耗偏移值2，其中，路径损耗偏移值1与PUSCH信息相关联，路径损耗偏移值2与PUCCH信息相关联。终端设备在发送上行信息时，如果将要发送的是PUSCH信息，可以根据路径损耗偏移值1与PUSCH信息的关联关系，确定与该上行信息关联的路径损耗偏移值是路径损耗偏移值1；如果将要发送的是PUCCH信息，可以根据路径损耗偏移值2与PUCCH信息的关联关系，确定与该上行信息关联的路径损耗偏移值是路径损耗偏移值2。
又如，以路径损耗偏移值与TCI状态相关联为例，第二网络设备预先为终端设备配置路径损耗偏移值5、路径损耗偏移值6和路径损耗偏移值7，其中，路径损耗偏移值5与TCI状态1相关联，路径损耗偏移值6与TCI状态2相关联，路径损耗偏移值7与TCI状态3相关联。终端设备在向第一网络设备发送上行信息时，如果该第一网络设备关联TCI状态1，则可以根据路径损耗偏移值5与TCI状态1的关联关系，确定与该第一网络设备关联的路径损耗偏移值是路径损耗偏移值5。
以上示例中，是以路径损耗偏移值与一个传输参数关联为例进行举例的。对于路径损耗偏移值与多个传输参数关联的情况，终端设备也可以采用相同的方式确定第一网络设备关联的路径损耗偏移值、或者确定上行信息关联的路径损耗偏移值，在此不再赘述。
在本申请实施例中的空间信息可以指用于上行信息传输的空间配置(spatial setting)，或空间关系(Spatial relation)、空间参数等。空间信息可以表征终端设备传输上下行信道的空间关系，示例性地，空间关系可以包括终端设备传输上下行信道的panel、beam、或者TRP。
SRS资源集合信息包括SRS资源集合索引、SRS资源集合ID等。SRS资源集合可以与panel/beam/TCI状态关联。实际应用中，终端设备可以采用与传输SRS资源集合相同的panel/beam/TCI state传输上行信道。
TCI状态信息可以用于上下行的波束管理。其中，一个TCI状态可以包括准共址(Quasi Co-Location，QCL)类型配置和QCL参考信号配置。QCL类型配置可以是QCL类型A(typeA)，QCL typeB，QCL typeC或QCL typeD中的一个，QCL参考信号配置可以是小区标识(ID)，带宽部分(Bandwidth Part，BWP)ID以及参考信号的标识(例如CSI-RS资源ID或SSB索引)。其中，不同QCL类型的定义如下：QCL TypeA用于配置多普勒频移(Doppler shift)、多普勒扩展(Doppler spread)、平均时延(average delay)、时延扩展(delay spread)；QCL typeB用于配置Doppler shift和Doppler spread；QCL typeC用于配置Doppler shift和average delay；QCL typeD用于配置空间Rx参数(Spatial Rx parameter)。
如果网络设备通过TCI状态为目标上行信道的QCL参考信号配置为SSB 1资源，且QCL类型配置为typeA，typeB或typeC，则终端设备可以假设上述目标上行信号与SSB 1的资源的大尺度参数是相同的或类似的，该大尺度参数通过QCL类型配置来确定。
如果两个上行信道的传输TRP或传输panel或发送波束不同，通常会配置不同的TCI状态。
本申请实施例中，panel信息可以包括panel ID，或者panel的索引值等，本申请实施例对此不做限制。
本申请实施例中，CORESET Pool Index可以与TRP关联。网络设备可以为每个CORESET配置一个用以指示是否为相同TRP的CORESET Pool Index。CORESET Pool Index的取值范围为0和1。对于配置了相同的CORESET Pool Index的CORESET，终端设备可以认为关联相同的TRP。
另外，beam信息可以包括beam ID，或者beam的索引值等，本申请实施例对此不做限制。
TRP信息可以包括TRP ID，或者TPR的索引值等，本申请实施例对此不做限制。
参考信号资源信息包括CSI-RS资源索引，SSB资源索引，PRS资源索引，SRS资源索引等。
本申请实施例中，终端设备可以配置有多个不同的空间参数，也就是说，终端设备可以通过多种不同的空间关系进行上行信道的传输。
以下举几个具体的实施例，介绍第二网络设备为终端设备配置路径损耗偏移值的几种方式。
实施例1：
在本实施例中，路径损耗偏移值通过RRC信令配置，即第二网络设备向终端设备发送的指示信息包括RRC信令。例如，第二网络设备通过RRC信令为终端设备配置路径损耗偏移值。该RRC信令可以为第一RRC信令。
在一些实施方式中，路径损耗偏移值与以下的一项或多项相关联：上行信息的类型、路径损耗参考信号索引、SRS资源指示(SRI)索引、SRS资源集合(SRS Resource Set)信息、TCI状态信息、天线面板信息、CORESET组信息、波束信息、参考信号资源信息。路径损耗参考信号索引可以包括：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、PRS索引、或者PRS资源索引等。
在一些实施方式中，路径损耗参考信号索引是通过独立的RRC信令配置的。例如，第二网络设备可以分别通过不同的RRC信令，为终端设备配置路径损耗偏移值、路径损耗参考信号索引和参考信号功率。或者，第二网络设备也可以通过同一个RRC信令为终端设备配置路径损耗偏移值、路径损耗参考信号索引和参考信号功率。或者，第二网络设备也可以通过两个RRC信令为终端设备配置路径损耗偏移值、路径损耗参考信号索引和参考信号功率，每个RRC信令配置路径损耗偏移值、路径损耗参考信号索引和参考信号功率中的一项或两项。本申请实施例对于具体的配置方式不做限定。
以下为一个RRC结构体示例，通过该RRC结构体配置路径损耗偏移值与路径损耗参考信号索引相关联：
上述RRC结构体中，pathloss-delta-Id表示路径损耗偏移值的标识，PUSCH-pathloss-delta-Id表示路径损耗参考信号的标识。
由于终端设备根据不同路径损耗参考信号的测量值是不同的，与路径损耗参考信号相关联可以更准确地配置路径损耗偏移值。
以下为一个RRC结构体示例，通过该RRC结构体配置路径损耗偏移值与TCI状态相关联。不同的上行信道对应的路径损耗偏移值可以是相同的，或者是各自配置的。本例中以不同的上行信道(如PUSCH、PUCCH、SRS和PRACH)的路径损耗偏移值各自配置为例：
上述RRC结构体中，TCI-StateId表示TCI状态的标识，PUSCH-pathloss-delta-Id、PUCCH-pathloss-delta-Id、SRS-pathloss-delta-Id、PRACH-pathloss-delta-Id分别表示不同上行信道(PUSCH、PUCCH、SRS和PRACH)对应的路径损耗偏移值的标识。
由于不同的TCI状态可以表征不同的波束方向，不同的波束方向的路径损耗偏移值是不同的，因此配置路径损耗偏移值与TCI状态相关联可以更准确地配置路径损耗偏移值，并更好的与现有的TCI架构融合。
以下为一个RRC结构体示例，通过该RRC结构体配置路径损耗偏移值与CSI-RS索引(或CSI-RS资源索引)相关联。不同的上行信道对应的路径损耗偏移值可以是相同的，或者是各自配置的。本例中以不同的上行信道(如PUSCH、PUCCH、SRS和PRACH)的路径损耗偏移值各自配置为例：
上述RRC结构体中，powerControlOffsetSS表示相对于SSB功率的偏移。nzp-CSI-RS-ResourceId表示CSI-RS资源索引，PUSCH-pathloss-delta-Id、PUCCH-pathloss-delta-Id、SRS-pathloss-delta-Id、PRACH-pathloss-delta-Id分别表示不同上行信道(PUSCH、PUCCH、SRS和PRACH)对应的路径损耗偏移值的标识。
当参考信号功率为CSI-RS的功率时，路径损耗偏移值与CSI-RS索引(或CSI-RS资源索引)相关联，能够更准确地补偿路径损耗之间差距。
以下为一个RRC结构体示例，通过该RRC结构体配置路径损耗偏移值与SSB索引(或SSB资源索引)相关联。不同的上行信道对应的路径损耗偏移值可以是相同的，或者是各自配置的。本例中以不同的上行信道(如PUSCH、PUCCH、SRS和PRACH)的路径损耗偏移值各自配置为例：
上述RRC结构体中，SSB-Index表示SSB索引，PUSCH-pathloss-delta-Id、PUCCH-pathloss-delta-Id、SRS-pathloss-delta-Id、PRACH-pathloss-delta-Id分别表示不同上行信道(PUSCH、PUCCH、SRS和PRACH)对应的路径损耗偏移值的标识。
当参考信号功率为SSB的功率时，路径损耗偏移值与SSB索引(或SSB资源索引)相关联能够更准确地补偿路径损耗之间差距。
以下为一个RRC结构体示例，通过该RRC结构体配置路径损耗偏移值与SRS资源集合索引相关联。不同的上行信道对应的路径损耗偏移值可以是相同的，或者是各自配置的。本例中以不同的上行信道(如SRS和PUSCH)的路径损耗偏移值各自配置为例：
上述RRC结构体中，SRS-ResourceSetId表示SRS资源集合索引，SRS-ResourceSetId、PUSCH-pathloss-delta-Id分别表示对应不同上行信道(SRS和PUSCH)的路径损耗偏移值的标识。本方案主要适用于上行信息为PUSCH和SRS的情况。在PUSCH传输中，每个PUSCH都会与一个SRS资源集合关联，因此，路径损耗偏移值与SRS资源集合索引相关联能够更准确地补偿PUSCH的路径损耗。
以上介绍了配置路径损耗偏移值的多种方式，本申请实施例配置路径损耗偏移值的方式不限于此，在此不再一一列举。利用第二网络设备配置的路径损耗偏移值，终端设备可以确定与一个或多个第一网络设备之间的路径损耗，并基于该路径损耗向第一网络设备发送上行信息。如果第二网络设备没有为终端设备配置路径损耗偏移值，则终端设备在确定与第一网络设备之间的路径损耗时，默认该路径损耗偏移值的取值为0。
实施例2：
在本实施例中，路径损耗偏移值通过MAC CE指示，即第二网络设备向终端设备发送的指示信息包括MAC CE。例如，第二网络设备通过MAC CE为终端设备配置路径损耗偏移值。由于相对于RRC信令来说，MAC CE的时延较小，因此本实施例采用MAC CE配置路径损耗偏移值，其时延较小，终端设备能够较快接收路径损耗偏移并计算与一个或多个第一网络设备(如上行TRP)之间的路径损耗。
以下是一个可能的MAC CE结构，记为MAC CE结构1，该MAC CE结构1包括以下信息一项或多项：
(1)服务小区索引(serving cell ID)，
(2)带宽部分索引(Bandwidth part，BWP ID)，
(3)路径损耗偏移值(pathloss offset)，
(4)预留比特(预留比特为可选项)。
在MAC CE结构1中，为特定的服务小区和/或BWP配置了关联的路径损耗偏移值。在上述示例中，不同的上行信道对应的路径损耗偏移值是相同的。在其它示例中，不同的上行信道对应的路径损耗偏移值可以是各自配置的，例如，将MAC CE结构1修改为包括多个路径损耗偏移值，每个路径损耗偏移值对应不同的上行信道(如PUSCH信道、PUCCH信道、SRS信道、PRACH信道)；终端设备在发送上行信息时，采用该上行信道对应的路径损耗偏移值确定路径损耗，并基于该路径损耗发送上行信息。
以下是一个可能的MAC CE结构，记为MAC CE结构2，该MAC CE结构2包括以下信息一项或多项：
(1)服务小区索引(serving cell ID)，
(2)带宽部分索引(Bandwidth part，BWP ID)，
(3)路径损耗偏移(pathloss offset)，
(4)路径损耗参考信号索引，
(5)预留比特(预留比特为可选项)。
在MAC CE结构2中，为特定的服务小区、BWP和路径损耗参考信号中的一个或多个配置了关联的路径损耗偏移值。在上述示例中，不同的上行信道对应的路径损耗偏移值是相同的。在其它示例中，不同的上行信道对应的路径损耗偏移值可以是各自配置的，例如，将MAC CE结构2修改为包括多个路径损耗偏移值，每个路径损耗偏移值对应不同的上行信道(如PUSCH信道、PUCCH信道、SRS信道、PRACH信道)；终端设备在发送上行信息时，采用该上行信道对应的路径损耗偏移值确定路径损耗，并基于该路径损耗发送上行信息。
以下是一个可能的MAC CE结构，记为MAC CE结构3，该MAC CE结构3包括以下信息一项或多项：
(1)服务小区索引(serving cell ID)，
(2)带宽部分索引(Bandwidth part，BWP ID)，
(3)路径损耗偏移(pathloss offset)，
(4)路径损耗参考信号索引，
(5)探测参考信号资源指示(SRI)索引，
(6)预留比特(预留比特为可选项)。
在MAC CE结构3中，为特定的服务小区、BWP、路径损耗参考信号和SRI中的一个或多个配置了关联的路径损耗偏移值。在上述示例中，不同的上行信道对应的路径损耗偏移值是相同的。在其它示例中，不同的上行信道对应的路径损耗偏移值可以是各自配置的，例如，将MAC CE结构3修改为包括多个路径损耗偏移值，每个路径损耗偏移值对应不同的上行信道(如PUSCH信道、PUCCH信道、SRS信道、PRACH信道)；终端设备在发送上行信息时，采用该上行信道对应的路径损耗偏移值确定 路径损耗，并基于该路径损耗发送上行信息。
以下是一个可能的MAC CE结构，记为MAC CE结构4，该MAC CE结构4包括以下信息一项或多项：
(1)服务小区索引(serving cell ID)，
(2)带宽部分索引(Bandwidth part，BWP ID)，
(3)路径损耗偏移(pathloss offset)，
(4)路径损耗参考信号索引，
(5)探测参考信号资源集合索引，
(6)预留比特(预留比特为可选项)。
在MAC CE结构4中，为特定的服务小区、BWP、路径损耗参考信号和探测参考信号资源集合中的一个或多个配置了关联的路径损耗偏移值。在上述示例中，不同的上行信道对应的路径损耗偏移值是相同的。在其它示例中，不同的上行信道对应的路径损耗偏移值可以是各自配置的，例如，将MAC CE结构3修改为包括多个路径损耗偏移值，每个路径损耗偏移值对应不同的上行信道(如PUSCH信道、PUCCH信道、SRS信道、PRACH信道)；终端设备在发送上行信息时，采用该上行信道对应的路径损耗偏移值确定路径损耗，并基于该路径损耗发送上行信息。
实施例3：
在本实施例中，路径损耗偏移值通过RRC信令配置，并通过DCI指示，即第二网络设备向终端设备发送的指示信息包括RRC信令和DCI。例如，第二网络设备通过RRC信令为终端设备配置一个或多个路径损耗偏移值集合，并通过DCI中的字段来动态映射不同的空间信息所对应的路径损耗偏移值。通过这种方式，可以更加灵活动态地调整路径损耗偏移值，并且能够更加准确地补偿路径损耗的差值。
本实施例至少包括以下两种方式：
方式一，通过RRC信令配置一个路径损耗偏移值集合，并通过DCI指示该路径损耗偏移值集合中与不同空间信息所关联的路径损耗偏移值。由于不同的第一网络设备(如上行TRP)可能对应不同的空间信息，通过DCI指示不同空间信息关联的路径损耗偏移值，也就相当于指示了不同第一网络设备(如上行TRP)关联的路径损耗偏移值。
图4A是本申请实施例中一个路径损耗偏移值集合与一个或多个上行TRP相关联的示意图。如图4A中，通过RRC信令为终端设备配置了路径损耗偏移值集合0，该路径损耗偏移值集合0中包括8个路径损耗偏移值；通过该DCI指示路径损耗偏移值集合0中与一个或多个上行TRP相关联的路径损耗偏移值。在图4A的示例中，路径损耗偏移值0与上行TRP 0相关联，路径损耗偏移值1与上行TRP 1相关联，路径损耗偏移值2与上行TRP 2相关联，路径损耗偏移值3与上行TRP 3相关联，路径损耗偏移值4与上行TRP 4相关联，路径损耗偏移值5与上行TRP 5相关联，路径损耗偏移值6与上行TRP6相关联，路径损耗偏移值7与上行TRP 7相关联。
方式二，通过RRC信令配置多个路径损耗偏移值集合，多个路径损耗偏移值集合与多个第一网络设备(如上行TRP)一一对应。并通过DCI指示该路径损耗偏移值集合中与不同空间信息所关联的路径损耗偏移值。由于不同的第一网络设备(如上行TRP)可能对应不同的空间信息，通过DCI指示不同空间信息关联的路径损耗偏移值，也就相当于指示了不同第一网络设备(如上行TRP)关联的路径损耗偏移值。
图4B是本申请实施例中多个路径损耗偏移值集合与多个上行TRP一一对应的示意图。如图4B中，通过RRC信令为终端设备配置了路径损耗偏移值集合0和路径损耗偏移值集合1；其中，路径损耗偏移值集合0与上行TRP 0相关联，路径损耗偏移值集合1与上行TRP 1相关联。不同路径损耗偏移值集合中的路径损耗偏移值相同、部分相同或完全不同。再通过DCI，可以指示路径损耗偏移值集合0中与上行TRP 0相关联的路径损耗偏移值，并指示路径损耗偏移值集合1中与上行TRP 1相关联的路径损耗偏移值。
可见，上述方式一只需要配置一个路径损耗偏移值集合，方式二需要配置多个路径损耗偏移值集合，方式二更加灵活，但与DCI字段之间的映射方式会更加复杂。
在一些实施方式中，对于上述方式一，RRC信令配置一个路径损耗偏移值集合；DCI指示该路径损耗偏移值集合中，第一网络设备对应的路径损耗偏移值。例如，可以采用DCI中的SRI字段、其它已有字段或新增字段指示路径损耗偏移值集合中与第一网络设备对应的路径损耗偏移值。
这种情况下，第二网络设备还向终端设备发送映射关系信息，例如该映射关系信息可以为第一信息，终端设备接收该映射关系信息(该映射关系信息可以为RRC信息)，该映射关系信息指示该SRI字段的状态值与路径损耗偏移值集合中的路径损耗偏移值之间的映射关系。例如，RRC信令配置了一个路径损耗偏移值集合，该路径损耗偏移值集合中包含路径损耗偏移值0、路径损耗偏移值1、路径损耗偏 移值2和路径损耗偏移值3。DCI指示DCI中的SRI字段的各个状态值与该路径损耗偏移值集合中的各个路径损耗偏移值的映射关系，例如，SRI字段取值为00，表示含路径损耗偏移值0；SRI字段取值为01，表示含路径损耗偏移值1；SRI字段取值为10，表示含路径损耗偏移值2；SRI字段取值为11，表示含路径损耗偏移值3。
终端设备根据该RRC信令、映射关系信息及DCI，确定第一网络设备对应的路径损耗偏移值。例如，如果终端设备接收到DCI，该DCI中的SRI字段取值为11，则表示第二网络设备为该终端设备配置的是该RRC信令所配置的路径损耗偏移值集合中的路径损耗偏移值3。
以上行信息为PUSCH为例，当RRC信令配置一个路径损耗偏移值集合时，网络设备向终端设备发送映射关系信息(该映射关系信息可以为RRC信息)，例如该映射关系信息可以为第二信息。映射关系信息配置路径损耗偏移值与DCI中的SRI字段的状态值的映射关系。例如，映射关系信息中可以包括以下的一项或多项：
(1)SRI-PUSCH功率控制索引
(2)PUSCH的路径损耗参考信号
(3)PUSCH的路径损耗偏移值
该RRC结构体示例如下：
通过DCI中的SRI字段指示路径损耗偏移值。DCI中SRI的每个状态值对应一个路径损耗偏移值的索引，通过SRI的不同状态值动态指示PUSCH关联的路径损耗偏移值。
在一些实施方式中，对于上述方式二，RRC信令配置多个路径损耗偏移值集合，不同的路径损耗偏移值集合关联不同的空间信息；DCI指示各个路径损耗偏移值集合中，第一网络设备对应的路径损耗偏移值。例如，可以采用DCI中的SRI字段指示各个路径损耗偏移值集合中与第一网络设备对应的路径损耗偏移值。
这种情况下，终端设备接收映射关系信息(该映射关系信息可以包括RRC信息)，该映射关系信息指示该SRI字段的状态值与路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
终端设备确定第一网络设备应用的路径损耗偏移值集合；
终端设备根据该RRC信令、映射关系信息及DCI，从第一网络设备应用的路径损耗偏移值集合中确定第一网络设备对应的路径损耗偏移值。
以上行信息为PUSCH为例，当配置多个路径损耗偏移值集合，多个路径损耗偏移值集合与多个上行TRP一一对应时，网络设备向终端设备发送映射关系信息(该映射关系信息可以为RRC信息)，映射关系信息配置每个路径损耗偏移值集合中的路径损耗偏移值与DCI中的SRI字段的状态值之间的映射关系。
网络设备向终端设备发送DCI，DCI中SRI的指示对应的路径损耗偏移值。
终端设备首先通过TCI状态或SRS资源集合，确定上行TRP应用的路径损耗偏移值集合。之后，终端设备基于映射关系信息、以及DCI中的SRI字段，确定该PUSCH关联的路径损耗偏移值。DCI中SRI字段的每个状态值对应一个路径损耗偏移值的索引，通过SRI字段的不同状态值动态指示PUSCH关联的路径损耗偏移值。
例如，第二网络设备通过RRC配置了2个路径损耗偏移值集合，其中路径损耗偏移值集合0与空间信息0相关联，路径损耗偏移值集合1与空间信息1相关联。第二网络设备向终端设备发送映射关系信息和DCI。终端设备在向上行TRP发送上行信息时，首先根据该上行TRP的TCI状态或SRS资源集合，确定该TRP应用的路径损耗偏移值集合。假定该上行TRP的TCI状态或SRS资源集合与空间信息0匹配，则针对该上行TRP的路径损耗偏移值将从空间信息0所关联的路径损耗偏移值集合(即路径损耗偏移值集合0)中确定。进一步地，根据映射关系信息和DCI，可以从路径损耗偏移值集合0中确定出DCI所指示的路径损耗偏移值，该路径损耗偏移值即为第二网络设备为该上行TRP配置的路径损耗偏移值。
以上实施例1-实施例3介绍了第二网络设备为终端设备配置路径损耗偏移值的方式，该路径损耗偏移可以用于供终端设备向第一网络设备发送上行信息时确定路径损耗。第一网络设备可以包括上行TRP，第二网络设备可以是与第一网络设备不同的设备。
以下介绍第二网络设备确定路径损耗偏移值的方式。
实施例4：
在本实施例中，终端设备以第一功率向一个或多个第一网络设备(如上行TRP)发送SRS。各个第一网络设备接收该SRS，将该SRS的接收功率和该SRS的发送功率(也就是第一功率)发送至第二网络设备(如宏基站，不同于第一网络设备的其它TRP等)；或者，第一网络设备将该SRS的发送功率(也就是第一功率)与该SRS的接收功率的差值发送至第二网络设备。这样，第二网络设备能够确定终端设备与第一网络设备之间的路径损耗，再结合终端设备与第二网络设备之间的路径损耗，就可以确定出路径损耗偏移值。可以采用以下方式确定路径损耗偏移值：
路径损耗偏移值＝终端设备与第二网络设备之间的路径损耗–终端设备与第一网络设备之间的路径损耗；或者，
路径损耗偏移值＝终端设备与第一网络设备之间的路径损耗–终端设备与第二网络设备之间的路径损耗。
对于终端设备与第二网络设备之间的路径损耗，至少可以采用以下方式：
方式1：
所述终端设备向第二网络设备发送SRS；相应地，第二网络设备可以根据该SRS的发送功率和接收功率，计算终端设备与第二网络设备之间的路径损耗。
方式2：
终端设备向第二网络设备发送终端设备与第二网络设备之间的路径损耗。该路径损耗可以是根据CSI-RS或SSB确定的。或者，终端设备可以向第二网络设备发送层1RSRP值或层3滤波的RSRP值，由第二网络设备根据层1RSRP值或层3滤波的RSRP值、以及CSI-RS或SSB的发送功率，确定终端设备与第二网络设备之间的路径损耗。
图5A是本申请实施例4的实现流程图一，在本实施例中，第一网络设备具体可以为TRP(或分布式TRP)，第二网络设备具体可以为宏基站、基站或与第一网络设备不同的TRP。为了方便介绍，在图5A中显示了针对一个第一网络设备确定并配置路径损耗偏移值的示例；对于多个第一网络设备的情况，可以针对每个第一网络设备采用图5A所示的方式确定并配置路径损耗偏移值。如图5A所示，包括以下步骤：
S511、终端设备向第一网络设备发送SRS；
S512、第一网络设备接收该SRS，测量该SRS的RSRP值，并向第二网络设备发送该SRS的RSRP。在一些示例中，第一网络设备还可以向第二网络设备发送该SRS的发送功率。SRS的发送功率可以预先由第一网络设备保存、或者由终端设备发送至第一网络设备。或者，第一网络设备可以将该SRS的发送功率与RSRP的差值发送至第二网络设备。
S513、第二网络设备根据SRS的发送功率和该SRS的RSRP，或者根据SRS的发送功率和该SRS的RSRP的差值，可以确定终端设备与第一网络设备之间的路径损耗。第二网络设备根据终端设备与第一网络设备之间的路径损耗、以及终端设备与第二网络设备之间的路径损耗，确定路径损耗偏移值，路径损耗偏移值等于前述两个路径损耗的差值。
S514、第二网络设备向终端设备发送路径损耗信息，该路径损耗信息中包括路径损耗偏移值，路径损耗信息中还可以包括路径损耗参考信号索引、和/或参考信号功率。本步骤可以参考前述实施例1至实施例3中介绍的路径损耗偏移值配置方法，在此不再赘述。
S515、终端设备根据路径损耗偏移值计算发送上行信息时的发送功率，并发送上行信息。
图5B是本申请实施例4的实现流程图二，在本实施例中，第一网络设备具体可以为TRP(或分布式TRP)，第二网络设备具体可以为宏基站、基站或与第一网络设备不同的TRP。为了方便介绍，在图5B中显示了针对一个第一网络设备确定并配置路径损耗偏移值的示例；对于多个第一网络设备的情况，可以针对每个第一网络设备采用图5B所示的方式确定并配置路径损耗偏移值。如图5B所示，包括以下步骤：
S521、终端设备向第一网络设备发送第一SRS，并向第二网络设备发送第二SRS。
S522、第一网络设备接收该第一SRS，测量该第一SRS的RSRP值，并向第二网络设备发送该第一SRS的RSRP。在一些示例中，第一网络设备还可以向第二网络设备发送该第一SRS的发送功率。第一SRS的发送功率可以预先由上行第一网络设备、或者由终端设备发送至第一网络设备；或者，第一SRS的发送功率为公知的，则第一网络设备无需向第二网络设备发送该第一SRS的发送功率。或者，第一网络设备可以将该第一SRS的发送功率与RSRP的差值发送至第二网络设备。
S523、第二网络设备根据第一SRS的发送功率和该第一SRS的RSRP，或者根据第一SRS的发送功率和该第一SRS的RSRP的差值，可以确定终端设备与第一网络设备之间的路径损耗。并且，第二网络设备接收第二SRS，测量该第二SRS的RSRP值，根据该第二SRS的发送功率和该第二SRS的RSRP值，确定终端设备与第二网络设备之间的路径损耗。其中，第二SRS的发送功率可以由终端设备 发送给第二网络设备；或者，第二SRS的发送功率为公知的，则终端设备无需向第二网络设备发送该第二SRS的发送功率。之后，第二网络设备根据终端设备与第一网络设备之间的路径损耗、以及终端设备与第二网络设备之间的路径损耗，确定路径损耗偏移值，路径损耗偏移值等于前述两个路径损耗的差值。
S524、第二网络设备向终端设备发送路径损耗信息，该路径损耗信息中包括路径损耗偏移值，路径损耗信息中还可以包括路径损耗参考信号索引、和/或参考信号功率。本步骤可以参考前述实施例1至实施例3中介绍的路径损耗偏移值配置方法，在此不再赘述。
S525、终端设备根据路径损耗偏移值计算发送上行信息时的发送功率，并发送上行信息。
上述过程中，终端设备向第一网络设备发送SRS(如第一SRS)时的功率(即上述第一功率)，至少可以采用以下两种方式确定：
方式1，第一功率为固定的功率：如第一功率为预定义的功率，或者第一功率通过第三信息配置；
方式2，第一功率通过开环功率控制确定。
以下分别具体介绍：
方式1，采用固定功率发送用于获取路径损耗偏移值的SRS：
在一些实施方式中，终端设备以第一功率发送用于调整路径损耗的SRS。该第一功率可以为预定义的功率值，或者，该第一功率是网络设备通过第三信息配置的，第三信息可以承载于RRC信令或者MAC CE。
例如，第一功率为预定义的功率值，例如可以是最大发送功率、最大发送功率的1/m、最大发送功率–n dB、或者是一个固定的功率值。最大发送功率的1/m可以理解为最大发送功率按比例缩减，不同的上行TRP，m的值可以是不同的，m为正整数。最大发送功率–n dB可以理解为在最大发送功率的基础上缩减n dB作为第一功率，对于不同上行TRP，n dB的值可以是不同的，n为正整数。此时第一功率是终端设备与网络设备公知的。
又如，第一功率是网络设备根据信道质量配置或指示的，例如通过RRC信令或MAC CE配置或指示的。网络设备会为终端设备直接配置第一功率，例如网络设备通过RRC信令或MAC CE中的p个比特配置第一功率，配置步长可以为k dB，k为正整数，例如k＝3。
如果终端设备向第一网络设备(如上行TRP)发送SRS，第一网络设备(如上行TRP)会与第二网络设备(如宏基站、或者不同于第一网络设备的其它TRP等)交互测量该SRS得到的RSRP值，或者交互第一功率与SRS RSRP的差值。第二网络设备根据SRS的第一功率和SRS RSRP的差值，确定终端设备与第一网络设备之间的路径损耗，再结合终端设备与第二网络设备之间的路径损耗，可以确定路径损耗偏移值，并通过实施例1至实施例3中的任意方式配置给终端设备。如图6所示，终端设备以第一功率向第一网络设备发送SRS，第一网络设备通过理想回程链路，将第一功率和SRS的RSRP值发送至第二网络设备，或者将第一功率与SRS的RSRP值的差值发送至第二网络设备；第二网络设备根据接收的信息，可以确定终端设备与第一网络设备之间的路径损耗。第二网络设备向终端设备发送SSB/CSI-RS，终端设备利用该SSB/CSI-RS确定终端设备与第二网络设备之间的路径损耗，并向第二网络设备发送终端设备与第二网络设备之间的路径损耗。第二网络设备利用终端设备与第一网络设备之间的路径损耗、以及终端设备与第二网络设备之间的路径损耗，可以确定路径损耗偏移值，并向终端设备配置参考信号功率及路径损耗偏移值。
采用固定功率发送SRS的方式无需终端设备计算SRS功率，降低了计算功率的复杂度，实现更加简单。
方式2，采用开环功率控制确定SRS的功率：
SRS的功率采用下述公式确定：
由上述公式可以看出，闭环功率调整为0，仅采用开环功控控制确定SRS的功率；
其中，Po为网络设备配置的一个或多个上行TRP所关联的目标功率，路径损耗是根据网络设备配置的特定下行参考信号确定的。
这种方式需要终端设备自己计算SRS的发送功率，复杂度比方式1高，但是SRS功率值更加准确。
上述过程中，终端设备向第二网络设备发送SRS(如第二SRS)时的功率，至少可以采用以下三种方式确定：
方式1，根据第二网络设备配置的路径损耗参考信号计算终端设备与第二网络设备之间的路径损耗，并根据该路径损耗确定第二SRS的发送功率；
方式2，第二SRS的发送功率为固定的功率。具体可以参照上述确定第一SRS的发送功率的方式1，在此不再赘述。
方式3，通过开环功率控制确定第二SRS的发送功率。具体可以参照上述确定第一SRS的发送功率的方式2，在此不再赘述。
本申请实施例还提出一种通信方法，该方法可以应用于第二网络设备，用于向终端设备配置或指示路径损耗偏移值，该路径损耗偏移值用于确定终端设备与一个或多个第一网络设备之间的路径损耗。其中，第二网络设备是与第一网络设备不同的设备。第一网络设备可以包括分布式通信系统中的TRP，第二网络设备可以包括基站、宏基站或与第一网络设备不同的TRP等。如图7所示，图7是根据本申请一实施例的通信方法700的示意性流程图。该方法可选地可以应用于图1或图2所示的系统，但并不仅限于此。该方法包括以下内容的至少部分内容。
S710、第二网络设备向终端设备发送指示信息，该指示信息用于指示路径损耗偏移值，该路径损耗偏移值用于确定终端设备与第一网络设备之间的路径损耗，该路径损耗用于终端设备向第一网络设备发送上行信息。
第一网络设备可以包括TRP，如分布式TRP。
第二网络设备可以包括宏基站、基站或与第一网络设备不同的TRP。
在一些实施方式中，第二网络设备可以向终端设备配置或指示路径损耗信息，该路径损耗信息中包括路径损耗偏移值，还可以包括路径损耗参考信号索引、和/或参考信号功率；其中，
路径损耗参考信号索引可以是第二网络设备通过无线资源控制(RRC，Radio Resource Control)信令配置，或者是通过媒体接入控制(MAC，Media Access Control)控制元素(CE，Control Element)更新的，或者是通过预设规则确定的，或者是通过下行控制信息(DCI，Downlink control information)中的SRS资源指示域(SRS resource indicator，SRI)域动态映射的。值得注意的是，该网络设备与一个或多个上行TRP是不同的设备；
参考信号功率可以是根据第二网络设备配置的参考信号功率确定的。参考信号功率是路径损耗参考信号的发送功率，如可以是CSI-RS的发送功率、SSB的发送功率、或者PRS的发送功率。
在一些实施方式中，路径损耗偏移值与以下传输参数中的一项或多项相关联：
上行信息的类型；
路径损耗参考信号索引；
SRS资源指示索引；
空间信息。
在一些实施方式中，空间信息包括SRS资源集合信息、传输配置指示(TCI)状态信息、天线面板信息、控制资源集(CORESET)组信息、波束信息、参考信号资源信息中的至少之一。
在一些实施方式中，路径损耗参考信号索引包括以下中的一个或多个：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、PRS索引、PRS资源索引。
在一些实施方式中，指示信息包括无线资源控制RRC信令；或者，
指示信息包括MAC CE；或者，
指示信息包括RRC信令和下行控制信息DCI。
在一些实施方式中，RRC信令配置路径损耗偏移值集合；
DCI指示所述路径损耗偏移值集合中，所述第一网络设备对应的路径损耗偏移值。例如，DCI中的SRI字段或新增字段指示所述路径损耗偏移值集合中与第一网络设备对应的路径损耗偏移值。
在一些实施方式中，第二网络设备向所述终端设备发送映射关系信息，该映射关系信息指示SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系。
具体地，RRC信令可以配置一个或多个路径损耗偏移值集合。如果配置多个路径损耗偏移值集合，则不同的路径损耗偏移值集合关联不同的空间信息；并且，DCI指示各个路径损耗偏移值集合中，第一网络设备对应的路径损耗偏移值。例如，DCI中的SRI字段指示各个路径损耗偏移值集合中与第一网络设备对应的路径损耗偏移值。
第二网络设备配置和/或指示路径损耗偏移值的具体方式可以参考上述实施例1至实施例3，在此不再赘述。
在一些实施方式中，第二网络设备根据第一路径损耗和第二路径损耗，确定路径损耗偏移值；其中，第一路径损耗包括终端设备与一个或多个第一网络设备之间的路径损耗，第二路径损耗包括终端设备与第二网络设备之间的路径损耗。
第二网络设备的其它实现方式可以参考前述实施例中有关第二网络设备的内容，在此不再赘述。
本申请实施例还提出一种通信方法，该方法可以应用于第一网络设备(如TRP)，如图8所示，图 8是根据本申请一实施例的通信方法800的示意性流程图。该方法可选地可以应用于图1或图2所示的系统，但并不仅限于此。该方法包括以下内容的至少部分内容。
S810、第一网络设备接收第一SRS；
S820、第一网络设备将该第一SRS的接收功率发送至第二网络设备；或者，第一网络设备将第一SRS的发送功率与第一SRS的接收功率的差值发送至第二网络设备。或者，第一网络设备将该第一SRS的接收功率发送至第二网络设备；这种方式适用于第一SRS的发送功率为公知的情况，因此第一网络设备无需发送第一SRS的发送功率至第二网络设备。
第二网络设备是与第一网络设备不同的设备。例如，第一网络设备包括TRP，如分布式TRP，第二网络设备包括基站、宏基站或TRP。
第一网络设备可以从终端设备接收第一SRS，通过向第二网络设备发送第一SRS的接收功率和第一SRS的发送功率、或者向第二网络设备发送第一SRS的发送功率与第一SRS的接收功率的差值、或者向第二网络设备发送第一SRS的接收功率，可以供第二网络设备确定网络设备与第一网络设备之间的路径损耗，从而进一步确定出路径损耗偏移值。其中，第一SRS的接收功率可以指第一网络设备接收第一SRS时的测量值，即该第一SRS的RSRP值。
第一网络设备的其它实现方式可以参考前述实施例中有关第一网络设备的内容，在此不再赘述。
上述内容中，介绍了终端设备根据路径损耗偏移值确定终端设备与第一网络设备之间的路径损耗，进而调整向第一网络设备发送上行信息时的发送功率的方式。本申请实施例还提出一种通信方法，该方法通过闭环功率控制来调整终端设备向上行TRP发送上行信息时的发送功率。为了提高功率调整的效率，节约DCI的开销(DCI可以用于闭环功率调整)，本申请实施例提出的方法中扩大闭环功率调整的数值范围。
图9是本申请一实施例的通信方法900的实现流程图，包括：
S910、终端设备接收第二网络设备发送的DCI，DCI中的传输功率控制(Transmission Power Control，TPC)字段的比特数大于或等于3；
S920、该终端设备根据DCI，调整上行信息的发送功率。
在一些实施方式中，终端设备使用调整后的发送功率，向第一网络设备或第二网络设备发送上行信息。
例如，该第一网络设备可以包括TRP，第二网络设备可以包括基站、宏基站或与第一网络设备不同的TRP。
在一些实施方式中，该TPC字段指示的绝对(Absolute)功率调整值满足以下条件：
绝对功率调整值为正值；或者，
绝对功率调整值大于或等于8dB；或者，
绝对功率调整值为负值；或者，
绝对功率调整值小于或等于-8dB。
在一些实施方式中，该TPC字段指示的累计(Accumulated)功率调整值满足以下条件：
累计功率调整值为负值；或者，
累计功率调整值小于或等于-3dB。
TPC字段指示的绝对功率调整值和累计功率调整值可以是满足条件的任意整数值。例如，绝对功率调整值可以是大于或等于8dB的任意整数值，例如9dB，10dB，15dB等；又如，累计功率调整值可以是小于或等于-3dB的任意整数值，例如-4dB，-6dB，-8dB，-9dB等。TPC字段指示的绝对功率调整值和累计功率调整值也可以是满足一定规律的值，例如绝对功率调整值和累计功率调整值是3的倍数，4的倍数，6的倍数，8的倍数等。
在一种示例中，对于PUSCH或SRS，TPC字段的比特数为3比特，增加累计功率调整值和绝对功率调整值的调整范围，如表1所示。在表1中，增加的内容包括：(1)TPC字段的取值为4，指示PUSCH或SRS的累计功率调整值为-12dB、PUSCH或SRS的绝对功率调整值为-12dB；(2)TPC字段的取值为5，指示PUSCH或SRS的累计功率调整值为-9dB、PUSCH或SRS的绝对功率调整值为-8dB；(3)TPC字段的取值为6，指示PUSCH或SRS的累计功率调整值为-6dB、PUSCH或SRS的绝对功率调整值为8dB；(4)TPC字段的取值为7，指示PUSCH或SRS的累计功率调整值为-3dB、PUSCH或SRS的绝对功率调整值为12dB。
表1
在一种示例中，对于PUCCH，扩展TPC字段的比特数到3比特，增加负值的调整范围，如表2所示。在表2中，增加的内容包括：(1)TPC字段的取值为4，指示PUCCH的累计功率调整值为-12dB；(2)TPC字段的取值为5，指示PUCCH的累计功率调整值为-9dB；(3)TPC字段的取值为6，指示PUCCH的累计功率调整值为-6dB；(4)TPC字段的取值为7，指示PUCCH的累计功率调整值为-3dB。
表2
在本申请实施例中，不同的上行TRP可以对应不同的闭环调整状态，每个闭环调整状态会对应各自的TPC。增加的闭环调整状态的个数为大于2，例如4个。
通过将DCI中的TPC字段的比特数扩大到大于或等于3，可以指示数值范围更大的功率调整值(包括绝对功率调整值和累计功率调整值)，从而可以减少闭环功率调整的次数，通过较少次数的调整达到合适的功率值，从而节约DCI的开销。
终端设备进行闭环功率调整时采用的DCI可以是网络设备发送的。例如，第二网络设备向终端设备发送DCI，该DCI中的TPC字段的比特数大于或等于3；该DCI用于所述终端设备确定上行信息的发送功率。TPC字段指示的绝对功率调整值和累计功率调整值的特征在上述内容中已有介绍，在此不再赘述。
在一些实施方式中，在分布式部署的网络中，第二网络设备(如宏基站、TRP等)向终端设备发送DCI，该DCI用于供终端设备采用闭环功控调整方式调整上行信息的发送功率，该上行信息是终端设备向一个或多个第一网络设备(如上行TRP)发送的信息；该DCI中的TPC字段的比特数大于或等于3。
本申请实施例还提出一种终端设备，图10是根据本申请一实施例的终端设备1000的示意性框图。该终端设备1000可以包括：
第一处理模块1010，根据路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗；
第一收发模块1020，用于基于路径损耗，向第一网络设备发送上行信息。
在一些实施方式中，第一收发模块还1020用于，接收第二网络设备发送的指示信息，指示信息用于指示路径损耗偏移值。
在一些实施方式中，路径损耗偏移值与以下传输参数中的一项或多项相关联：
上行信息的类型；
路径损耗参考信号索引；
SRS资源指示索引；
空间信息。
在一些实施方式中，空间信息包括以下至少之一：
SRS资源集合信息；
TCI状态信息；
天线面板信息；
CORESET组信息；
波束信息；
参考信号资源信息。
在一些实施方式中，路径损耗参考信号索引包括以下中的一个或多个：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、定PRS索引、PRS资源索引。
在一些实施方式中，第一网络设备与传输参数中的一项或多项相关联。
在一些实施方式中，第一处理模块1010用于，根据上行信息关联的传输参数中的一项或多项，确定与上行信息关联的路径损耗偏移值；根据与上行信息关联的路径损耗偏移值，确定终端设备与第一网络设备之间的路径损耗。
在一些实施方式中，指示信息包括无线资源控制RRC信令；或者，
指示信息包括MAC CE；或者，
指示信息包括RRC信令和下行控制信息DCI。
在一些实施方式中，指示信息包括RRC信令和DCI，包括：
RRC信令配置路径损耗偏移值集合；
DCI指示路径损耗偏移值集合中，上行信息对应的路径损耗偏移值。
在一些实施方式中，DCI指示路径损耗偏移值集合中，与上行信息对应的路径损耗偏移值，包括：
DCI中的资源指示域SRI字段或新增字段指示路径损耗偏移值集合中，与上行信息对应的路径损耗偏移值。
在一些实施方式中，第一收发模块1020，还用于，接收映射关系信息，映射关系信息指示SRI字段的状态值与路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
第一处理模块用于，根据RRC信令、映射关系信息及DCI，确定上行信息对应的路径损耗偏移值。
在一些实施方式中，第一收发模块1020还用于，接收映射关系信息，映射关系信息指示SRI字段的状态值与路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
第一处理模块1010用于，确定第一网络设备应用的路径损耗偏移值集合；终端设备根据RRC信令、映射关系信息及DCI，确定上行信息对应的路径损耗偏移值。
在一些实施方式中，第一收发模块1020还用于，以第一功率向第一网络设备发送第一SRS，第一SRS用于确定路径损耗偏移值。
在一些实施方式中，第一功率为预定义的功率；或者，
第一功率通过第三信息配置。
在一些实施方式中，第三信息由RRC信令或MAC CE承载。
在一些实施方式中，第一功率通过开环功率控制确定。
在一些实施方式中，第一收发模块1020还用于，向第二网络设备发送第二SRS；或者，向第二网络设备发送终端设备与第二网络设备之间的路径损耗。
在一些实施方式中，上行信息包括：PUSCH信息、PUCCH信息、SRS信息和PRACH信息中的至少之一。
本申请实施例的终端设备1000能够实现前述的方法实施例中的终端设备的对应功能。该终端设备1000中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的终端设备1000的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
本申请实施例还提出一种第二网络设备，图11是根据本申请一实施例的第二网络设备1100的示意性框图。该第二网络设备1100可以包括：
第二收发模块1110，用于向终端设备发送指示信息，指示信息用于指示路径损耗偏移值，路径损耗偏移值用于确定终端设备与第一网络设备之间的路径损耗，路径损耗用于所述终端设备向第一网络设备发送上行信息。
在一些实施方式中，路径损耗偏移值与以下传输参数中的一项或多项相关联：
上行信息的类型；
路径损耗参考信号索引；
SRS资源指示索引；
空间信息。
在一些实施方式中，空间信息包括以下至少之一：
SRS资源集合信息；
TCI状态信息；
天线面板信息；
CORESET组信息；
波束信息；
参考信号资源信息。
在一些实施方式中，路径损耗参考信号索引包括以下中的一个或多个：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、PRS索引、PRS资源索引。
在一些实施方式中，指示信息包括RRC信令；或者，
指示信息包括MAC CE；或者，
指示信息包括RRC信令和DCI。
在一些实施方式中，指示信息包括RRC信令和DCI，包括：
RRC信令配置路径损耗偏移值集合；
DCI指示路径损耗偏移值集合中，上行信息对应的路径损耗偏移值。
在一些实施方式中，DCI指示路径损耗偏移值集合中，与上行信息对应的路径损耗偏移值，包括：
DCI中的SRI字段或新增字段指示路径损耗偏移值集合中，与上行信息对应的路径损耗偏移值。
图12是根据本申请一实施例的第二网络设备1200的示意性框图。如图12所示，该第二网络设备1200包括第二收发模块1110，还包括，
第二处理模块1220，用于向终端设备发送映射关系信息，映射关系信息指示SRI字段的状态值与路径损耗偏移值集合中的路径损耗偏移值之间的映射关系。
在一些实施方式中，第二处理模块1220还用于，
根据第一路径损耗和第二路径损耗，确定路径损耗偏移值；其中，
第一路径损耗包括终端设备与一个或多个第一网络设备之间的路径损耗；
第二路径损耗包括终端设备与第二网络设备之间的路径损耗。
本申请实施例的第二网络设备1100和第二网络设备1200能够实现前述的方法实施例中的第二网络设备的对应功能。该第二网络设备1100和第二网络设备1200中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的终第二网络设备1100和第二网络设备1200中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
本申请实施例还提出一种第一网络设备，图13是根据本申请一实施例的第一网络设备1300的示意性框图。该第一网络设备1300可以包括：第三收发模块1310，用于，
接收第一SRS；
将该第一SRS的接收功率发送至第二网络设备；或者，将第一SRS的发送功率与第一SRS的接收功率的差值发送至第二网络设备。
本申请实施例的第一网络设备1300能够实现前述的方法实施例中的第一网络设备的对应功能。该第一网络设备1300中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的第一网络设备1300中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
本申请实施例还提出一种终端设备，图14是根据本申请一实施例的终端设备1400的示意性框图。该终端设备1400可以包括：
第四收发模块1410，用于接收第二网络设备发送的DCI，DCI中的传输功率控制TPC字段的比特数大于或等于3；
第三处理模块1420，用于根据DCI，调整上行信息的发送功率。
在一些实施方式中，第四收发模块1410还用于使用调整后的发送功率，向第一网络设备或第二网络设备发送上行信息。
在一些实施方式中，TPC字段指示的绝对功率调整值满足以下条件：
绝对功率调整值为正值；或者，
绝对功率调整值大于或等于8dB；或者，
绝对功率调整值为负值；或者，
绝对功率调整值小于或等于-8dB。
在一些实施方式中，TPC字段指示的累计功率调整值满足以下条件：
累计功率调整值为负值；或者，
累计功率调整值小于或等于-3dB。
本申请实施例的终端设备1400能够实现前述的方法实施例中的终端设备的对应功能。该终端设备 1400中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的终端设备1400中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
本申请实施例还提出一种第二网络设备，图15是根据本申请一实施例的第二网络设备1500的示意性框图。该第二网络设备1500可以包括：
第五收发模块1510，用于向终端设备发送DCI，DCI中的传输功率控制TPC字段的比特数大于或等于3；DCI用于终端设备确定上行信息的发送功率。
在一些实施方式中，TPC字段指示的绝对功率调整值满足以下条件：
绝对功率调整值为正值；或者，
绝对功率调整值大于或等于8dB；或者，
绝对功率调整值为负值；或者，
绝对功率调整值小于或等于-8dB。
在一些实施方式中，TPC字段指示的累计功率调整值满足以下条件：
累计功率调整值为负值；或者，
累计功率调整值小于或等于-3dB。
本申请实施例的第二网络设备1500能够实现前述的方法实施例中的终端设备的对应功能。该第二网络设备1500中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果，可参见上述方法实施例中的对应描述，在此不再赘述。需要说明，关于申请实施例的第二网络设备1500中的各个模块(子模块、单元或组件等)所描述的功能，可以由不同的模块(子模块、单元或组件等)实现，也可以由同一个模块(子模块、单元或组件等)实现。
图16是根据本申请实施例的通信设备1600示意性结构图。该通信设备1600包括处理器1610，处理器1610可以从存储器中调用并运行计算机程序，以使通信设备1600实现本申请实施例中的方法。
在一种实施方式中，通信设备1600还可以包括存储器1620。其中，处理器1610可以从存储器1620中调用并运行计算机程序，以使通信设备1600实现本申请实施例中的方法。
其中，存储器1620可以是独立于处理器1610的一个单独的器件，也可以集成在处理器1610中。
在一种实施方式中，通信设备1600还可以包括收发器1630，处理器1610可以控制该收发器1630与其它设备进行通信，具体地，可以向其它设备发送信息或数据，或接收其它设备发送的信息或数据。
其中，收发器1630可以包括发射机和接收机。收发器1630还可以进一步包括天线，天线的数量可以为一个或多个。
在一种实施方式中，该通信设备1600可为本申请实施例的终端设备，并且该通信设备1600可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。该终端设备包括存储器、处理器和收发器。其中，存储器可以存储终端设备执行的程序；处理器执行该程序，具体地，处理器可以执行第一处理模块1010或第三处理模块1420所执行的动作；收发器受处理器的控制，执行第一收发模块1020或第四收发模块1410所执行的动作。
在一种实施方式中，该通信设备1600可为本申请实施例的第一网络设备，并且该通信设备1600可以实现本申请实施例的各个方法中由第一网络设备实现的相应流程，为了简洁，在此不再赘述。该第一网络设备包括存储器、处理器和收发器。其中，存储器可以存储第一网络设备执行的程序；处理器执行该程序；收发器受处理器的控制，执行第三收发模块1310所执行的动作。
在一种实施方式中，该通信设备1600可为本申请实施例的第二网络设备，并且该通信设备1600可以实现本申请实施例的各个方法中由第二网络设备实现的相应流程，为了简洁，在此不再赘述。该第二网络设备包括存储器、处理器和收发器。其中，存储器可以存储第二网络设备执行的程序；处理器执行该程序，具体地，处理器可以执行第二处理模块1220所执行的动作；收发器受处理器的控制，执行第二收发模块1110或第五收发模块1510所执行的动作。
图17是根据本申请实施例的芯片1700的示意性结构图。该芯片1700包括处理器1710，处理器1710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
在一种实施方式中，芯片1700还可以包括存储器1720。其中，处理器1710可以从存储器1720中调用并运行计算机程序，以实现本申请实施例中由终端设备或者网络设备执行的方法。
其中，存储器1720可以是独立于处理器1710的一个单独的器件，也可以集成在处理器1710中。
在一种实施方式中，该芯片1700还可以包括输入接口1730。其中，处理器1710可以控制该输入接口1730与其它设备或芯片进行通信，具体地，可以获取其它设备或芯片发送的信息或数据。
在一种实施方式中，该芯片1700还可以包括输出接口1740。其中，处理器1710可以控制该输出 接口1740与其它设备或芯片进行通信，具体地，可以向其它设备或芯片输出信息或数据。
在一种实施方式中，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
在一种实施方式中，该芯片可应用于本申请实施例中的终端设备，并且该芯片可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
应用于网络设备和终端设备的芯片可以是相同的芯片或不同的芯片。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
上述提及的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、现成可编程门阵列(field programmable gate array，FPGA)、专用集成电路(application specific integrated circuit，ASIC)或者其它可编程逻辑器件、晶体管逻辑器件、分立硬件组件等。其中，上述提到的通用处理器可以是微处理器或者也可以是任何常规的处理器等。
上述提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例中的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其它可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以该权利要求的保护范围为准。

Claims (75)

  1. 一种通信方法，包括：
    终端设备根据路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗；
    所述终端设备基于所述路径损耗，向所述第一网络设备发送上行信息。
  2. 根据权利要求1所述的方法，还包括，所述终端设备接收第二网络设备发送的指示信息，所述指示信息用于指示所述路径损耗偏移值。
  3. 根据权利要求1或2所述的方法，其中，所述路径损耗偏移值与以下传输参数中的一项或多项相关联：
    上行信息的类型；
    路径损耗参考信号索引；
    探测参考信号SRS资源指示索引；
    空间信息。
  4. 根据权利要求3所述的方法，其中，所述空间信息包括以下至少之一：
    SRS资源集合信息；
    传输配置指示TCI状态信息；
    天线面板信息；
    控制资源集CORESET组信息；
    波束信息；
    参考信号资源信息。
  5. 根据权利要求3或4所述的方法，其中，所述路径损耗参考信号索引包括以下中的一个或多个：信道状态信息参考信号CSI-RS索引、CSI-RS资源索引、同步信号块SSB索引、SSB资源索引、定位参考信号PRS索引、PRS资源索引。
  6. 根据权利要求3-5中任一所述的方法，其中，所述第一网络设备与所述传输参数中的一项或多项相关联。
  7. 根据权利要求6所述的方法，其中，所述终端设备根据路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗，包括：
    所述终端设备根据所述第一网络设备关联的传输参数中的一项或多项，确定与所述第一网络设备关联的路径损耗偏移值；根据与所述第一网络设备关联的路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗。
  8. 根据权利要求2所述的方法，其中，
    所述指示信息包括无线资源控制RRC信令；或者，
    所述指示信息包括MAC CE；或者，
    所述指示信息包括RRC信令和下行控制信息DCI。
  9. 根据权利要求8所述的方法，其中，所述指示信息包括RRC信令和下行控制信息DCI，包括：
    所述RRC信令配置路径损耗偏移值集合；
    所述DCI指示所述路径损耗偏移值集合中，所述第一网络设备对应的路径损耗偏移值。
  10. 根据权利要求9所述的方法，其中，所述DCI指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值，包括：
    所述DCI中的资源指示域SRI字段或新增字段指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值。
  11. 根据权利要求9或10所述的方法，还包括，所述终端设备接收映射关系信息，所述映射关系信息指示所述SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
    所述终端设备根据路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗，包括：所述终端设备根据所述RRC信令、所述映射关系信息及所述DCI，确定所述第一网络设备对应的路径损耗偏移值。
  12. 根据权利要求9或10所述的方法，还包括，所述终端设备接收映射关系信息，所述映射关系信息指示所述SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
    所述终端设备根据路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗，包括：所述终端设备确定所述第一网络设备应用的路径损耗偏移值集合；所述终端设备根据所述RRC信令、所述映射关系信息及所述DCI，确定所述第一网络设备对应的路径损耗偏移值。
  13. 根据权利要求1-12中任一所述的方法，还包括，
    所述终端设备以第一功率向所述第一网络设备发送第一SRS，所述第一SRS用于确定所述路径损耗偏移值。
  14. 根据权利要求13所述的方法，其中，
    所述第一功率为预定义的功率；或者，
    所述第一功率通过第三信息配置。
  15. 根据权利要求14所述的方法，其中，所述第三信息由RRC信令或MAC CE承载。
  16. 根据权利要求14所述的方法，其中，所述第一功率通过开环功率控制确定。
  17. 根据权利要求1-16中任一所述的方法，还包括，
    所述终端设备向第二网络设备发送第二SRS；或者，
    所述终端设备向所述第二网络设备发送所述终端设备与所述第二网络设备之间的路径损耗。
  18. 根据权利要求1-17中任一所述的方法，其中，所述上行信息包括：物理上行共享信道PUSCH信息、物理上行控制信道PUCCH信息、SRS信息和物理随机接入信道PRACH信息中的至少之一。
  19. 一种通信方法，包括：
    第二网络设备向终端设备发送指示信息，所述指示信息用于指示路径损耗偏移值，所述路径损耗偏移值用于确定所述终端设备与第一网络设备之间的路径损耗，所述路径损耗用于所述终端设备向第一网络设备发送上行信息。
  20. 根据权利要求19所述的方法，其中，所述路径损耗偏移值与以下传输参数中的一项或多项相关联：
    上行信息的类型；
    路径损耗参考信号索引；
    SRS资源指示索引；
    空间信息。
  21. 根据权利要求20所述的方法，其中，所述空间信息包括以下至少之一：
    SRS资源集合信息；
    传输配置指示TCI状态信息；
    天线面板信息；
    控制资源集CORESET组信息；
    波束信息；
    参考信号资源信息。
  22. 根据权利要求20所述的方法，其中，所述路径损耗参考信号索引包括以下中的一个或多个：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、PRS索引、PRS资源索引。
  23. 根据权利要求20-22中任一所述的方法，其中，
    所述指示信息包括无线资源控制RRC信令；或者，
    所述指示信息包括MAC CE；或者，
    所述指示信息包括RRC信令和下行控制信息DCI。
  24. 根据权利要求23所述的方法，其中，所述指示信息包括RRC信令和下行控制信息DCI，包括：
    所述RRC信令配置路径损耗偏移值集合；
    所述DCI指示所述路径损耗偏移值集合中，所述第一网络设备对应的路径损耗偏移值。
  25. 根据权利要求24所述的方法，其中，所述DCI指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值，包括：
    所述DCI中的SRI字段或新增字段指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值。
  26. 根据权利要求25所述的方法，还包括，
    所述第二网络设备向所述终端设备发送映射关系信息，所述映射关系信息指示所述SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系。
  27. 根据权利要求19-26中任一所述的方法，还包括，
    所述第二网络设备根据第一路径损耗和第二路径损耗，确定所述路径损耗偏移值；其中，
    所述第一路径损耗包括所述终端设备与所述一个或多个第一网络设备之间的路径损耗；
    所述第二路径损耗包括所述终端设备与所述第二网络设备之间的路径损耗。
  28. 一种通信方法，包括：
    第一网络设备接收第一SRS；
    所述第一网络设备将所述第一SRS的接收功率发送至第二网络设备；或者，所述第一网络设备将 所述第一SRS的发送功率与所述第一SRS的接收功率的差值发送至第二网络设备。
  29. 一种通信方法，包括：
    终端设备接收第二网络设备发送的DCI，所述DCI中的传输功率控制TPC字段的比特数大于或等于3；
    所述终端设备根据所述DCI，调整上行信息的发送功率。
  30. 根据权利要求29所述的方法，还包括，所述终端设备使用调整后的发送功率，向第一网络设备或第二网络设备发送上行信息。
  31. 根据权利要求29或30所述的方法，其中，所述TPC字段指示的绝对功率调整值满足以下条件：
    所述绝对功率调整值为正值；或者，
    所述绝对功率调整值大于或等于8dB；或者，
    所述绝对功率调整值为负值；或者，
    所述绝对功率调整值小于或等于-8dB。
  32. 根据权利要求29或30所述的方法，其中，所述TPC字段指示的累计功率调整值满足以下条件：
    所述累计功率调整值为负值；或者，
    所述累计功率调整值小于或等于-3dB。
  33. 一种通信方法，包括：
    第二网络设备向终端设备发送DCI，所述DCI中的传输功率控制TPC字段的比特数大于或等于3；所述DCI用于所述终端设备确定上行信息的发送功率。
  34. 根据权利要求33所述的方法，其中，所述TPC字段指示的绝对功率调整值满足以下条件：
    所述绝对功率调整值为正值；或者，
    所述绝对功率调整值大于或等于8dB；或者，
    所述绝对功率调整值为负值；或者，
    所述绝对功率调整值小于或等于-8dB。
  35. 根据权利要求33所述的方法，其中，所述TPC字段指示的累计功率调整值满足以下条件：
    所述累计功率调整值为负值；或者，
    所述累计功率调整值小于或等于-3dB。
  36. 一种终端设备，包括：
    第一处理模块，根据路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗；
    第一收发模块，用于基于所述路径损耗，向所述第一网络设备发送上行信息。
  37. 根据权利要求36所述的终端设备，所述第一收发模块还用于，接收第二网络设备发送的指示信息，所述指示信息用于指示所述路径损耗偏移值。
  38. 根据权利要求36或37所述的终端设备，其中，所述路径损耗偏移值与以下传输参数中的一项或多项相关联：
    上行信息的类型；
    路径损耗参考信号索引；
    探测参考信号SRS资源指示索引；
    空间信息。
  39. 根据权利要求38所述的终端设备，其中，所述空间信息包括以下至少之一：
    SRS资源集合信息；
    传输配置指示TCI状态信息；
    天线面板信息；
    控制资源集CORESET组信息；
    波束信息；
    参考信号资源信息。
  40. 根据权利要求38或39所述的终端设备，其中，所述路径损耗参考信号索引包括以下中的一个或多个：信道状态信息参考信号CSI-RS索引、CSI-RS资源索引、同步信号块SSB索引、SSB资源索引、定位参考信号PRS索引、PRS资源索引。
  41. 根据权利要求38-40中任一所述的终端设备，其中，所述第一网络设备与所述传输参数中的一项或多项相关联。
  42. 根据权利要求41所述的终端设备，其中，所述第一处理模块用于，根据所述第一网络设备关联的传输参数中的一项或多项，确定与所述第一网络设备关联的路径损耗偏移值；根据与所述第一网络设备关联的路径损耗偏移值，确定所述终端设备与第一网络设备之间的路径损耗。
  43. 根据权利要求37所述的终端设备，其中，
    所述指示信息包括无线资源控制RRC信令；或者，
    所述指示信息包括MAC CE；或者，
    所述指示信息包括RRC信令和下行控制信息DCI。
  44. 根据权利要求43所述的终端设备，其中，所述指示信息包括RRC信令和下行控制信息DCI，包括：
    所述RRC信令配置路径损耗偏移值集合；
    所述DCI指示所述路径损耗偏移值集合中，所述第一网络设备对应的路径损耗偏移值。
  45. 根据权利要求44所述的终端设备，其中，所述DCI指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值，包括：
    所述DCI中的资源指示域SRI字段或新增字段指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值。
  46. 根据权利要求44或45所述的终端设备，所述第一收发模块还用于，接收映射关系信息，所述映射关系信息指示所述SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
    所述第一处理模块用于，根据所述RRC信令、所述映射关系信息及所述DCI，确定所述第一网络设备对应的路径损耗偏移值。
  47. 根据权利要求44或45所述的终端设备，所述第一收发模块还用于，接收映射关系信息，所述映射关系信息指示所述SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系；
    所述第一处理模块用于，确定所述第一网络设备应用的路径损耗偏移值集合；所述终端设备根据所述RRC信令、所述映射关系信息及所述DCI，确定所述第一网络设备对应的路径损耗偏移值。
  48. 根据权利要求36-47中任一所述的终端设备，所述第一收发模块还用于，以第一功率向所述第一网络设备发送第一SRS，所述第一SRS用于确定所述路径损耗偏移值。
  49. 根据权利要求48所述的终端设备，其中，
    所述第一功率为预定义的功率；或者，
    所述第一功率通过第三信息配置。
  50. 根据权利要求49所述的终端设备，其中，所述第三信息由RRC信令或MAC CE承载。
  51. 根据权利要求49所述的终端设备，其中，所述第一功率通过开环功率控制确定。
  52. 根据权利要求36-51中任一所述的终端设备，所述第一收发模块还用于，向第二网络设备发送第二SRS；或者，向所述第二网络设备发送所述终端设备与所述第二网络设备之间的路径损耗。
  53. 根据权利要求36-52中任一所述的终端设备，其中，所述上行信息包括：物理上行共享信道PUSCH信息、物理上行控制信道PUCCH信息、SRS信息和物理随机接入信道PRACH信息中的至少之一。
  54. 一种第二网络设备，包括：
    第二收发模块，用于向终端设备发送指示信息，所述指示信息用于指示路径损耗偏移值，所述路径损耗偏移值用于确定所述终端设备与第一网络设备之间的路径损耗，所述路径损耗用于所述终端设备向第一网络设备发送上行信息。
  55. 根据权利要求54所述的第二网络设备，其中，所述路径损耗偏移值与以下传输参数中的一项或多项相关联：
    上行信息的类型；
    路径损耗参考信号索引；
    SRS资源指示索引；
    空间信息。
  56. 根据权利要求55所述的第二网络设备，其中，所述空间信息包括以下至少之一：
    SRS资源集合信息；
    传输配置指示TCI状态信息；
    天线面板信息；
    控制资源集CORESET组信息；
    波束信息；
    参考信号资源信息。
  57. 根据权利要求55所述的第二网络设备，其中，所述路径损耗参考信号索引包括以下中的一个或 多个：CSI-RS索引、CSI-RS资源索引、SSB索引、SSB资源索引、PRS索引、PRS资源索引。
  58. 根据权利要求55-57中任一所述的第二网络设备，其中，
    所述指示信息包括无线资源控制RRC信令；或者，
    所述指示信息包括MAC CE；或者，
    所述指示信息包括RRC信令和下行控制信息DCI。
  59. 根据权利要求58所述的第二网络设备，其中，所述指示信息包括RRC信令和下行控制信息DCI，包括：
    所述RRC信令配置路径损耗偏移值集合；
    所述DCI指示所述路径损耗偏移值集合中，所述第一网络设备对应的路径损耗偏移值。
  60. 根据权利要求59所述的第二网络设备，其中，所述DCI指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值，包括：
    所述DCI中的SRI字段或新增字段指示所述路径损耗偏移值集合中，与所述第一网络设备对应的路径损耗偏移值。
  61. 根据权利要求59所述的第二网络设备，还包括，
    第二处理模块，用于向所述终端设备发送映射关系信息，所述映射关系信息指示所述SRI字段的状态值与所述路径损耗偏移值集合中的路径损耗偏移值之间的映射关系。
  62. 根据权利要求54-61中任一所述的第二网络设备，所述第二处理模块还用于，
    根据第一路径损耗和第二路径损耗，确定所述路径损耗偏移值；其中，
    所述第一路径损耗包括所述终端设备与所述一个或多个第一网络设备之间的路径损耗；
    所述第二路径损耗包括所述终端设备与所述第二网络设备之间的路径损耗。
  63. 一种第一网络设备，包括：第三收发模块，用于，
    接收第一SRS；
    将所述第一SRS的接收功率发送至第二网络设备；或者，将所述第一SRS的发送功率与所述第一SRS的接收功率的差值发送至第二网络设备。
  64. 一种终端设备，包括：
    第四收发模块，用于接收第二网络设备发送的DCI，所述DCI中的传输功率控制TPC字段的比特数大于或等于3；
    第三处理模块，用于根据所述DCI，调整上行信息的发送功率。
  65. 根据权利要求64所述的终端设备，所述第四收发模块还用于使用调整后的发送功率，向第一网络设备或第二网络设备发送上行信息。
  66. 根据权利要求64或65所述的终端设备，其中，所述TPC字段指示的绝对功率调整值满足以下条件：
    所述绝对功率调整值为正值；或者，
    所述绝对功率调整值大于或等于8dB；或者，
    所述绝对功率调整值为负值；或者，
    所述绝对功率调整值小于或等于-8dB。
  67. 根据权利要求64或65所述的终端设备，其中，所述TPC字段指示的累计功率调整值满足以下条件：
    所述累计功率调整值为负值；或者，
    所述累计功率调整值小于或等于-3dB。
  68. 一种第二网络设备，包括：
    第五收发模块，用于向终端设备发送DCI，所述DCI中的传输功率控制TPC字段的比特数大于或等于3；所述DCI用于所述终端设备确定上行信息的发送功率。
  69. 根据权利要求68所述的第二网络设备，其中，所述TPC字段指示的绝对功率调整值满足以下条件：
    所述绝对功率调整值为正值；或者，
    所述绝对功率调整值大于或等于8dB；或者，
    所述绝对功率调整值为负值；或者，
    所述绝对功率调整值小于或等于-8dB。
  70. 根据权利要求68所述的第二网络设备，其中，所述TPC字段指示的累计功率调整值满足以下条件：
    所述累计功率调整值为负值；或者，
    所述累计功率调整值小于或等于-3dB。
  71. 一种通信设备，包括：处理器、存储器和收发器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，并控制所述收发器，执行如权利要求1至35中任一项所述的方法。
  72. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至35中任一项所述的方法。
  73. 一种计算机可读存储介质，用于存储计算机程序，当所述计算机程序被设备运行时使得所述设备执行如权利要求1至35中任一项所述的方法。
  74. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至35中任一项所述的方法。
  75. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1至35中任一项所述的方法。
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