WO2025231865A1 - Wireless communication methods, terminal devices and network devices - Google Patents

Abstract

Provided are wireless communication methods, terminal devices and network devices. A wireless communication method comprises: a terminal device sending first information to a network device, wherein the first information is used for indicating power headroom, and the power headroom is calculated on the basis of a first path loss offset. In the present application, the calculation of power headroom can take the impact of a path loss offset in an asymmetric TRP scenario into consideration. Therefore, in the asymmetric TRP scenario, power headroom reported by a terminal device can more accurately reflect the uplink transmission status of the terminal device, so that a network device can more accurately perform power control and scheduling.

Description

Wireless communication methods, terminal devices, and network devices Technical Field

This application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal device, and network device.

Background Technology

Some communication systems define asymmetric transmitting and receiving point (TRP) scenarios. For example, in an enhanced asymmetric TRP scenario, there exists an uplink (UL) TRP. An UL TRP may only provide uplink receiving functionality and lack downlink (DL) transmitting capabilities. Based on the UL TRP, enhanced asymmetric TRP scenarios can include downlink single TRP (sTRP) and uplink multiple TRP (mTRP) cases, i.e., asymmetric DL sTRP/UL mTRP scenarios.

Some communication processes in asymmetric TRP scenarios need to be defined or improved.

Summary of the Invention

This application provides a wireless communication method, a terminal device, and a network device. The various aspects covered by this application are described below.

In a first aspect, a wireless communication method is provided, the method comprising: a terminal device sending first information to a network device; wherein the first information is used to indicate a power margin, the power margin being calculated based on a first path loss offset (PLO).

In a second aspect, a wireless communication method is provided, the method comprising: a network device receiving first information sent by a terminal device; wherein the first information is used to indicate power margin, the power margin being calculated based on a first path loss offset.

Thirdly, a terminal device is provided, comprising: a transmitting unit for transmitting first information to a network device; wherein the first information is used to indicate power margin, the power margin being calculated based on a first path loss offset.

Fourthly, a network device is provided, comprising: a receiving unit for receiving first information sent by a terminal device; wherein the first information is used to indicate power margin, the power margin being calculated based on a first path loss offset.

Fifthly, a terminal device is provided, including a processor and a memory, the memory being used to store one or more computer programs, the processor being used to invoke the computer programs in the memory to cause the terminal device to perform some or all of the steps in the method of the first aspect.

In a sixth aspect, a network device is provided, including a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory to cause the network device to perform some or all of the steps in the method of the second aspect.

Seventhly, embodiments of this application provide a communication system including the aforementioned terminal device and/or network device. In another possible design, the system may further include other devices that interact with the terminal device or network device as described in the embodiments of this application.

Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program that causes a terminal device and/or a network device to perform some or all of the steps in the methods described above.

Ninthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a terminal device and/or a network device to perform some or all of the steps of the methods described in the foregoing aspects. In some implementations, the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a terminal device and/or a network device to perform some or all of the steps of the methods described in the foregoing aspects. A computer program product can be a software installation package.

In a tenth aspect, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the methods of the foregoing aspects.

In this application, the calculation of power margin can take into account the impact of path loss offset in asymmetric TRP scenarios. Therefore, in asymmetric TRP scenarios, the power margin reported by the terminal device can more accurately reflect the uplink transmission status of the terminal device, thereby enabling network devices to perform more accurate power control and scheduling.

Attached Figure Description

Figure 1 is a schematic diagram of the wireless communication system used in the embodiments of this application.

Figure 2 is an example of a single downlink TRP and multiple uplink TRP scenarios.

Figure 3 is a schematic flowchart of a wireless communication method provided in an embodiment of this application.

Figure 4 is a schematic structural diagram of a terminal device provided in an embodiment of this application.

Figure 5 is a schematic structural diagram of a network device provided in an embodiment of this application.

Figure 6 is a schematic structural diagram of a communication device provided in an embodiment of this application.

Detailed Implementation

The technical solutions in this application will now be described with reference to the accompanying drawings.

Communication system

Figure 1 illustrates a wireless communication system 100 according to an embodiment of this application. The wireless communication system 100 may include communication devices. These communication devices may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120.

Figure 1 illustrates an exemplary network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application embodiment does not limit this.

Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, and so on.

The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and/or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal device in the embodiments of this application can be a mobile phone, tablet computer, laptop computer, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D) connections. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate... It can transmit information without relaying communication signals through a base station.

The network device in this application embodiment can be a device for communicating with terminal devices. The network device may also include an access network device. The access network device can provide communication coverage for a specific geographical area and can communicate with the terminal device 120 located within that coverage area. The access network device can also be called a wireless access network device or a base station, etc. In this application embodiment, the access network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. Access network equipment can broadly encompass various names listed below, or be replaced by names such as: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, TRP, transmitting point (TP), master eNB (MeNB), secondary eNB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, equipment performing base station functions in D2D, V2X, and machine-to-machine (M2M) communications, network-side equipment in 6G networks, and equipment performing base station functions in future communication systems. A base station can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or equipment forms used in the access network equipment.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

Wireless communication systems involve communication equipment that can include not only access network equipment and terminal equipment, but also core network elements. Core network elements can be implemented through devices; that is, core network elements are core network devices. It can be understood that core network devices can also be a type of network device.

The core network elements in this embodiment may include network elements that process and forward user signaling and data. For example, core network equipment may include core access and mobility management functions (AMF), session management functions (SMF), user plane gateways, location management functions (LMF), and other core network equipment. The user plane gateway may be a server with functions such as mobility management, routing, and forwarding of user plane data, generally located on the network side, such as a serving gateway (SGW), a packet data network gateway (PGW), or a user plane function (UPF). Of course, the core network may also include other network elements, which are not listed here.

In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

Asymmetric TRP Scenarios

Some communication systems define asymmetric TRP scenarios. For example, in the Release 19 Multiple Input Multiple Output (MIMO) framework, the RAN (Radio Router) includes enhanced asymmetric TRP scenarios. In enhanced asymmetric TRP scenarios, UL TRPs exist. UL TRPs can provide only uplink reception functionality without downlink transmission. Based on UL TRPs, enhanced asymmetric TRP scenarios can include downlink sTRP and uplink mTRP cases, i.e., asymmetric DL (Downlink Transmission). sTRP/UL mTRP scenario.

Optionally, for enhancements to asymmetric DL sTRP/UL mTRP scenarios, for frequency ranges (FR) 1 and FR2, assuming in-band DU non-co-located mTRP scenarios, without changing the cell definition of related technologies or defining new cells (e.g., UL cells only), assuming the Rel-17/18 Joint Transmission Configuration Indication (TCI) framework and fully reusing traditional QCL/UL spatial relationship rules (Specify enhancement for asymmetric DL sTRP/UL mTRP deployment scenarios, as suming intra-band intra-DU non-co-located mTRP scenarios,without changing existing cell definition or defining a new cell(e.g.UL-only cell), assuming the Rel-17/18 unified TCI framework and fully reusing the legacy QCL/UL spatial relation rules, targeting FR1 and FR2).

For example, both closed-loop power control (PC) adjustment states for SRS are separated from the physical uplink shared channel (PUSCH); when the path loss reference signal (PL RS) is from DL sTRP, the path loss is calculated as path loss offset configurations for UL TRP(s).

Figure 2 shows an example of a single downlink TRP and multiple uplink TRP scenarios.

In the scenario shown in Figure 2, there can be one UL TRP and one UL/DL TRP. The UL/DL TRP can provide both uplink reception and downlink transmission capabilities. As shown in Figure 2, the scenario includes only one downlink TRP, namely the downlink sTRP. The scenario in Figure 2 includes multiple uplink TRPs, namely the uplink mTRP. The UL TRP and UL/DL TRP can communicate via a backhaul link.

Path loss measurement in asymmetric TRP scenarios

For path loss measurement in asymmetric TRP scenarios, terminal devices can use the downlink reference signal of DL TRP (e.g., DL sTRP) as the PL RS. When the terminal device needs to transmit to UL TRP, it needs to compensate for the PL measured by the DL TRP PL RS by adding a path loss offset (PLO) to calculate the PL. Understandably, considering that the PL RS is the downlink reference signal, the terminal device needs to estimate the downlink PL by measuring the PL RS, and then compensate accordingly in the uplink transmission power using the path loss offset.

As shown in Figure 2, the terminal device uses the downlink reference signal of DL sTRP as PL RS, and the terminal device performs uplink transmission based on path loss offset (UL Tx with PL offset).

Some communication standardization conferences have proposed linking PLO and TCI states (e.g., UL TCI state/joint TCI state). This would allow terminal equipment to calculate the power of the PUSCH/physical uplink control channel (PUCCH)/sounding reference signal (SRS) based on downlink path loss reference signal measurements and path loss offset.

In some embodiments, for the asymmetric DL sTRP/UL mTRP deployment scenarios, it is supported to associate a UL TCI state with a PL offset.

Optionally, when a UL TCI state associated with a PL offset is applied for the PUSCH/PUCCH/SRS transmission, the terminal device shall calculate the Tx power of the PUSCH/PUCCH/SRS based on the DL PL RS and PL offset associated with this UL TCI state. For example, the legacy uplink power control formula can be reused by replacing the legacy PL with a UL PL derived from the DL PL RS and the PL offset. Further, for example, the UE can update the UL PL in a way that new UL PL = current UL PL + an update delta indicated by the network (FFS).

It should be noted that the technical solution of associating UL TCI status with PLO does not increase the number of PLs maintained per cell.

Optionally, further research could be conducted on whether/how to apply a PL offset on PDCCH-order PRACH transmission.

Optionally, further research can be conducted on how to determine the Tx beam of PRACH towards UL TRP.

The technical solution of associating UL TCI status with PLO does not imply support 2TA for single-DCI based system.

In some embodiments, for FR1, a joint TCI state can be associated with a PLO. When a joint TCI state associated with a PLO is applied for the PUSCH/PUCCH/SRS transmission, the UE shall calculate the Tx power of the PUSCH/PUCCH/SRS based on the DL PL RS and PL offset associated with this joint TCI state.

Alternatively, the traditional uplink power control formula can be reused by replacing the traditional PL with a PL derived from DL PL RS and PLO.

Network devices can configure PLOs via radio resource control (RRC) signaling. For example, a PLO can be directly configured in the joint TCI state/uplink TCI state. Alternatively, a PLO can be indirectly configured in the bandwidth part (BWP)/CC, and then the associated PLO configuration is indicated for the joint TCI state/uplink TCI state via other signaling (RRC or media access control element (MAC CE)). Therefore, in general, the configuration and value of a PLO can be associated with the joint TCI state/uplink TCI state.

In some embodiments, the following options or other options may be considered or selected for the association between PLO and TCI states.

Option 1a: One PL offset value is configured in a joint or UL TCI state by RRC only.

Option 1b: A PLO value is configured in a joint or UL TCI state by RRC signaling; a MAC CE signaling can update the PLO value for the joint or UL TCI state(s).

Option 2a: A list of PL offset configurations is configured by RRC in the BWP/CC, and each PL offset configuration contains one PL offset value. One new RRC parameter is introduced in a joint or UL TCI state to indicate one of the configured PL offset configurations.

Option 2b allows the PLO configuration list to be configured in the BWP/CC via RRC signaling, with each PLO configuration containing a PLO value. A new RRC parameter can be introduced into the combined TCI status/uplink TCI status to indicate one of the PLO configurations. MAC CE signaling can be used to update the association between a joint or uplink TCI state and the PLO configuration. (Alt2b: A list of PL offset configurations is configured by RRC in BWP/CC, and each PL offset configuration contains one PL offset value. One new RRC parameter is introduced in a joint or UL TCI state to indicate one of the configured PL offset configurations. A MAC CE can update the association between a joint or UL TCI state and the PL offset configuration.)

Option 3: The PLO configuration list is configured in the BWP/CC via RRC signaling, and each PLO configuration contains one PLO value. MAC CE signaling can be used to activate/indicate one PLO configuration for each activated joint or UL TCI state. In each joint or UL TCI state, the initial PLO value can be 0dB. (Alt3: A list of PL offset configurations is configured by RRC in BWP/CC and each PL offset configuration contains one PL offset value. A MAC CE can activate/indicate one PL offset configuration for each activated joint or UL TCI state. In each joint or UL TCI state, the initial PLO value can be 0dB.) The offset value is 0 dB.

Option 4: The PLO configuration list can be configured in the BWP/CC via RRC signaling. Each PLO value applies to a corresponding measured PL range. (Alt4: A list of PL offset values is provided in a joint or UL TCI state by RRC. Each PL offset value is applied to a corresponding measured PL range.)

Power headroom (PH)

In some communication systems, terminal devices can report power headroom (PH) to network devices via power headroom reports (PHR). Network devices can then use these PHR reports from terminal devices for power control and scheduling.

For example, a higher pH value indicates that the terminal device has more remaining power. Accordingly, network devices can allocate more uplink resources to the terminal device, thereby increasing the uplink transmission rate.

The inventors of this application have discovered that related technologies do not consider how to report PH in asymmetric TRP scenarios. To address the above problem, this application proposes the method shown in Figure 3.

The method shown in Figure 3 can be executed by terminal devices and network devices. The method shown in Figure 3 may include step S310.

Step 310: The terminal device sends the first information to the network device.

The first information can be used to indicate power margin. For example, the first information can be carried in the Power Receiver (PHR). In other words, the PHR can be used to report the first information.

The power margin can be calculated based on the first path loss offset. The first path loss offset can be the PLO in the asymmetric TRP scenario described above (e.g., downlink sTRP and uplink mTRP scenario). In other words, based on the estimated downlink PL, the uplink transmission power can be compensated using the first path loss offset.

For example, the first path loss offset can correspond to the first path loss. The first path loss can be the path loss estimated using the downlink reference signal. The power margin can then be calculated using the first path loss and the first path loss offset.

For example, the first path loss offset can be associated with a path loss reference signal. The path loss reference signal can be a downlink reference signal. That is, the power margin can be calculated using the path loss estimated from the downlink reference signal (such as the first path loss mentioned above) and the first path loss offset.

In some embodiments, the power margin calculation formula of this application can be implemented based on the calculation formula in related technologies. For example, a calculation term related to the path loss offset can be added to the formula in related technologies. Alternatively, PL in the related formula can be replaced with PL derived from the first path loss and the first path loss offset.

It is understandable that the power margin calculation in this application can take into account the impact of path loss offset. Therefore, in asymmetric TRP scenarios, the power margin reported by the terminal device can more accurately reflect the uplink transmission status of the terminal device, thereby enabling network devices to perform more accurate power control and scheduling.

In some embodiments, the first path loss offset can be associated with a first TCI state. In other words, the first path loss offset can be determined based on the first TCI state to calculate the power margin. Alternatively, the first path loss offset can appear in the formula for calculating the power margin by associating it with the first TCI state.

Optionally, the association between the first path loss offset and the first TCI state can be configured or indicated via RRC signaling and/or MAC CE signaling. The specific configuration or indication method of this association can be as described above.

In some embodiments, the first path loss offset can be represented by PLO _k . The subscript k can represent the index of the TCI state associated with PLO _k . For example, the index of the TCI state can be the index of the TCI state configured and/or activated by the network device. For instance, the value range of k can be k = {0, 1}, where 0 and 1 can represent the indicated first TCI state and the second TCI state, respectively. Alternatively, the value range of k can be k = {0, 1, ..., K-1}, where K is a number greater than 1. 0, 1, ..., K-1 are the indices of the TCI states configured and/or activated by the network device, respectively.

In some embodiments, the offset of the first path loss can be represented by PLO _t , and the power margin can be represented by PH _k . Here, the subscript k can represent the index of the TCI state associated with the power margin; the subscript t can represent the index of the network device's configured and/or activated TCI state. For example, the subscript k can take the value {0,1}, where 0 and 1 can represent the indicated first TCI state and second TCI state, respectively. Similarly, the subscript t can take the value {0,1}, where 0 and 1 represent the first and second TCI states, respectively. 1 can represent the first TCI state and the second TCI state, respectively. For example, the subscript t can take the value {0, 1, 2, ..., T-1}, where T is a number greater than 1. 0, 1, ..., T-1 are the indices of the TCI states configured and/or activated by the network device, respectively.

It should be noted that the subscripts t and k can be set to the same value simultaneously, or they can be set independently. Therefore, the subscript t can have the same value as the subscript k, or they can have different values. For example, t and k can have the same value, both within the range {0,1} mentioned above. Alternatively, t can be independent of k. In this case, k can have a value of {0,1}, and t can have a value of {0,1,2,…T-1}.

Optionally, the first TCI state can be an uplink TCI state. Alternatively, the first TCI state can be a combined TCI state.

In some embodiments, the first path loss offset can be associated with a path loss reference signal. In other words, the first path loss offset can be determined based on the path loss reference signal to calculate the power margin. Alternatively, the first path loss offset can appear in the formula for calculating the power margin by associating it with the path loss reference signal.

In some embodiments, the power headroom can be for uplink signals. Uplink signals may include, for example, one or more of the following: PUSCH, SRS. That is, the power headroom reporting proposed in this application can be either type 1 power headroom reporting or type 3 power headroom reporting. Type 1 power headroom reporting is for PUSCH; type 3 power headroom reporting is for SRS.

It should be noted that the power margin proposed in this application can also be applied to other uplink signals, and this application does not limit it.

In some embodiments, power margin includes one or more of the following: actual power margin for the actually transmitted uplink signal and virtual power margin for the reference uplink signal. For example, actual power margin may include: power margin for the actually transmitted PUSCH, and/or, power margin for the actually transmitted SRS. Similarly, virtual power margin may include: power margin for the reference PUSCH, and/or, power margin for the reference SRS.

In some embodiments, the power margin can be a TRP-specific power margin. In some embodiments, the power margin can be a cell-specific power margin.

Optionally, the terminal device can determine whether the power margin is a TRP-specific power margin or a cell-specific power margin based on whether the network device has a TwoPHRMode configuration via RRC signaling. For example, without TwoPHRMode configuration, the first message sent by the terminal device can indicate a cell-specific power margin. In this case, the terminal device can indicate a power margin to the network device. Conversely, with TwoPHRMode configuration, the first message sent by the terminal device can indicate a TRP-specific PHR.

In some embodiments, the power margin can be determined based on a first value, which can be determined based on one of the following: the sum of a first path loss offset and a first path loss; or the difference between the offset of the first path loss and the first path loss. In other words, the power margin can be determined based on one of the following: the sum of a first path loss offset and a first path loss; or the difference between the offset of the first path loss and the first path loss.

For example, the first path loss can be represented by PL (including PL with an index), and the first path loss offset can be represented by PLO (including PLO with an index). PLO can be positive or negative. The first value can be equal to PL + PLO, or equal to PL - PLO. The specific value of PLO can be determined based on the actual communication scenario, whether PLO is positive or negative.

For example, the first value can be PL+PLO. When the terminal device is far from the DL TRP and close to the UL TRP, the PL measured from the DL TRP is large, requiring a negative PLO to be superimposed on it. In some embodiments, the value of PLO can be {-40dB, -30dB, -20dB, -10dB}, etc. When the terminal device is close to the DL TRP and far from the UL TRP, the PL measured from the DL TRP is small, requiring a positive PLO to be superimposed on it. In some embodiments, the value of PLO can be {40dB, 30dB, 20dB, 10dB}, etc.

For example, the first value can be PL-PLO. When the terminal device is far from the DL TRP and close to the UL TRP, the PL measured from the DL TRP is large, and a positive PLO needs to be subtracted from it. In some embodiments, the value of PLO can be {40dB, 30dB, 20dB, 10dB}, etc. When the terminal device is close to the DL TRP and close to the UL TRP, the PL measured from the DL TRP is large, and a positive PLO needs to be subtracted from it. When the distance from the UL TRP is far, the PL measured from the DL TRP is small, and a negative PLO needs to be subtracted from it. In some embodiments, the value of PLO can be {-40dB, -30dB, -20dB, -10dB}, etc.

In some embodiments, the influence of a path loss impact factor (or a weighted factor for path loss) may be considered when calculating power margin. The path loss impact factor can be represented by α (including α with a subscript). The path loss impact factor can be a positive number less than or equal to 1.

For example, the first path loss can be the path loss adjusted based on the path loss influence factor. That is, the path loss influence factor can first affect the first path loss, and then compensation for the first path loss offset can be applied. For instance, the first path loss can be expressed as α·PL. The first value can be α·PL+PLO or α·PL-PLO.

For example, the first value can be obtained by adjusting the path loss influence factor. That is, the first path loss can be compensated for by the first path loss offset first, and then the path loss influence factor can be used to influence the compensated path loss. For example, the first value can be α·(PL+PLO) or α·(PL-PLO).

For ease of understanding, this application will be described in detail below through Examples 1 to 3.

In Embodiments 1 to 3, the first information can be carried in the PHR, the power margin is represented by PH (including PH with subscript), the first path loss offset is represented by PLO (including PLO with subscript), and the first path loss is represented by PL (including PL with subscript).

Example 1

Example 1 is an example of power margin reporting for Type 1 (PUSCH). The following examples 1.1 to 1.3 illustrate power margin reporting under different conditions.

Example 1.1 PLO associated TCI state, for the PHR of the actual PUSCH

In Example 1.1, the scenario can be divided into two cases: whether the network device configures TwoPHRMode via RRC signaling. Specifically, when TwoPHRMode is configured, the terminal device can send a TRP-specific PHR to the network device according to a relevant protocol (e.g., R18 protocol). When TwoPHRMode is not configured, the terminal device sends a single PHR to the network device.

Without TwoPHRMode configuration

The formula for calculating PHR is as follows:

The meanings of each parameter are as follows.

b represents the bandwidth part (BWP).

f represents a carrier (e.g., an uplink carrier within a cell or a supplementary uplink (SUL) carrier).

'c' stands for serving cell.

i represents the transmission occasion.

j represents the parameter configuration index.

_qd represents the index of the reference signal used for path loss measurement.

l represents the index of the closed-loop power control adjustment state.

P _{O_PUSCH,b,f,c} (j) represents the target received power.

_αb,f,c (j) represents the weighting factor for path loss.

PL _b,f,c (qd) represents the path loss value measured based on the reference signal used for path loss.

f _b,f,c (i,l) represents the closed-loop power control adjustment state, including cumulative closed-loop power control (acting on the power control accumulation value through an accumulator) and absolute closed-loop power control (acting directly on the power adjustment value).

Other power control parameters include: P _CMAX,f,c (i), which represents the maximum transmit power of the terminal device on carrier f in serving cell c; This indicates the transmission bandwidth of PUSCH (the number of resource allocation blocks).

PL _b,c,c (qd) represents the path loss. _{PL b,f,c} (qd) satisfies: PL _b,f,c (qd) = referenceSignalPower – higher layer filtered RSRP. Here, "higher layer filtered RSRP" is the RSRP of the higher layer filter, and RSRP is... The terminal device measures the reference signal. The higher-layer parameter `referenceSignalPower` can be determined as follows: If the terminal device is not receiving CSI-RS during the configuration period, `referenceSignalPower` is determined by `ss-PBCH-BlockPower`, which is the SSB transmission power; if the terminal device is receiving CSI-RS during the configuration period, `referenceSignalPower` is determined based on `ss-PBCH-BlockPower`, or based on `ss-PBCH-BlockPower` and `powerControlOffsetSS`, which is the power offset of the CSI-RS transmission power relative to the SSB transmission power.

Based on the above formula, it's understandable that `referenceSignalPower` is the transmit power of the downlink reference signal sent by the network device, and `higher layer filtered RSRP` is the receive power of the downlink reference signal sent by the network device received by the terminal device. The difference between the two is the path loss.

It should be noted that in the above formula, the path loss PL operates on the PLO in two possible ways.

The first scenario involves an "addition" operation, namely PL+PLO. When the terminal device is far from the DL TRP and close to the UL TRP, the PL measured from the DL TRP is large, requiring a negative PLO to be superimposed on the PL. In some embodiments, the value of this PLO can be {-40dB, -30dB, -20dB, -10dB}, etc.

The second scenario involves a subtraction operation, specifically PL-PLO. When the terminal device is far from the DL TRP but close to the UL TRP, the PL measured from the DL TRP is large, requiring a positive PLO to be subtracted. In some embodiments, the PLO value can be {40dB, 30dB, 20dB, 10dB}, etc.

In addition, it is very important that the index k of PLO _k can be associated with the uplink TCI state/joint TCI state.

In some embodiments, the subscript k can range from k = {0, 1}. 0 and 1 can represent the indicated first TCI state or second TCI state, respectively. The first TCI state or second TCI state can be an uplink TCI state or a combined TCI state. As mentioned above, the PLO and TCI states can be configured and/or indicated in relation to each other via RRC signaling and/or MAC CE signaling.

In other embodiments, the subscript k may have a range larger than {0,1}. For example, k = {0,1,…,K-1}. Here, k can serve as an index to the TCI state configured and/or activated by the network device. This TCI state is either an uplink TCI state or a combined TCI state.

Case with TwoPHRMode configuration

In addition to configuring the RRC parameter TwoPHRMode, in some embodiments, the network device also needs to configure other parameters to complete the PHR for each indicated TCI state. For example, two SRS resource sets can be configured for either "codebook" or "non-codebook" transmission. Alternatively, a unified TCI state can be configured, indicating both a first and a second TCI state. Another example is configuring an uplink transmission scheme for a multi-antenna panel.

The terminal device can calculate the Type 1 PHR associated with the first or second TCI state using the following formula:

It should be noted that, unlike the case without TwoPHRMode configuration, the subscripts of PH _{type1,b,f,c,k} and P _CMAX,f,c,k also include a variable k. k is used to indicate the associated TCI state, that is, it is associated with the indicated first TCI state or second TCI state. For explanations of other parameters in the formula, please refer to the explanation of the formula in the case without TwoPHRMode configuration in Example 1.1.

It should be noted that, to distinguish it from the already used subscript k, the PLO can use the subscript t. In some embodiments, the subscript t can be the same as the subscript k, i.e., take the value {0,1}, representing the indicated first TCI state or second TCI state. In some embodiments, t can be independent of the subscript k, i.e., the value range of t is {0,1,2,…T-1}, representing one of multiple uplink TCI states/joint TCI states configured and/or activated by the network.

Example 1.2 PLO-associated TCI status, virtual PHR (based on reference PUSCH)

When the terminal sends a virtual PHR (i.e., based on the reference PUSCH, not the actual PUSCH), the following explanation covers two scenarios: whether the TwoPHRMode parameter is configured or not.

Without TwoPHRMode configuration

The formula for calculating PHR is as follows:

in, The calculation of the maximum configured transmit power assumes that all power back-off factors are 0, i.e., MPR = 0dB, A-MPR = 0dB, P-MPR = 0dB, and Tc = 0dB. MPR, A-MPR, P-MPR, and Tc can be referred to the definitions in the following RAN4 protocols: [8-1,TS 38.101-1], [8-2,TS 38.101-2], and [8-3,TS 38.101-3].

It should be noted that in the above formula, the operation of path loss PL on PLO can be divided into two possible cases: PL adding to or subtracting from PLO. Details of these two cases are provided above.

It should be noted that the index k of PLO _k can be associated with the TCI state.

In some embodiments, the subscript k can take values ranging from k = {0, 1}. Here, 0 and 1 represent the indicated first TCI state or second TCI state, respectively. The first TCI state or second TCI state can be an uplink TCI state or a combined TCI state. As described above, the association between PLO and TCI states can be configured via RRC signaling and/or MAC CE signaling.

In other embodiments, the subscript k can have a wider range of values, such as k = {0, 1, ..., K-1}. k can serve as an index to the TCI state configured and/or activated by the network device. Similarly, the TCI state can be an uplink TCI state or a combined TCI state.

Case with TwoPHRMode configuration

In some embodiments, in addition to configuring the RRC parameter TwoPHRMode, the network device also needs to configure two SRS resource sets for use in "codebook" or "non-codebook" transmission. Additionally, the network device can configure a unified TCI state indicating both a first TCI state and a second TCI state. Furthermore, the network device can configure an uplink transmission scheme for multi-antenna panels.

The formula for calculating the PHR of type 1 associated with the first TCI state or the second TCI state by the terminal device can be as follows:

It should be noted that, unlike the case without TwoPHRMode configuration, the subscripts of PH _{type1,b,f,c,k} and P _CMAX,f,c,k also include an additional variable k. k can be used to indicate the first or second TCI state association. Similar to the case without TwoPHRMode configuration, PLO can use the subscript t to distinguish the subscript k. The relationship and explanation between t and k are as described above.

Example 1.3 PLO associated with PL RS, real PHR

In embodiments 1.1 and 1.2 above, PLO appears in the formula for PHR in relation to the TCI state. In some embodiments, PLO may appear in the calculation of PHR in relation to PL RS. For example, PL RS and its index are q _d .

Similarly, it can be divided into two cases: those with TwoPHRMode configured and those without. It can also be divided into real PHRs based on the transport PUSCH and virtual PHRs referencing the PUSCH.

To save space, the following only lists the calculation formulas for PHR under different conditions. The explanation of the relevant parameters in the formula can be found above.

Cases without TwoPHRMode and real PHR

There are two PHR modes and real PHR scenarios.

Cases without TwoPHRMode and Virtual PHR

There are twoPHRMode and virtual PHR scenarios.

Example 2

Example 2 is an example of power margin reporting for Type 3 (SRS).

Some communication protocols (such as the NR protocol) do not support repeated transmission of SRS multi-antenna panels. Therefore, in Embodiment 2, it is not necessary to consider whether TwoPHRMode is configured.

The following examples 2.1 to 2.3 illustrate the power headroom reporting under different conditions. The main difference between the different conditions is whether the PHR is based on the actual transmitted SRS (i.e., the real PHR) or on the reference SRS (i.e., the virtual PHR).

Example 2.1 PLO associated with TCI status, reporting actual PHR

It should be noted that the TCI state associated with PLO can be either an uplink TCI state or a combined TCI state.

The formula for calculating PHR is as follows:

PH _type3,b,f,c (i,q _s )＝P _CMAX,f,c (i)-{P _{O_SRS,b,f,c} (q _s )+10log ₁₀ (2 ^μ ·M _SRS,b,f,c (i))+α _SRS,b,f,c (q _s )·(PL _b,f,c (q _d )±PLO _k )+h _b,f,c (i)}[dB].

The meanings of each parameter in this formula are as follows.

_qs represents the index of the SRS resource set. _qs can be configured by the RRC parameter.

h _b,f,c (i,l) represents the adjustment state of the SRS closed-loop power control. _{h b,f,c} (i,l) can be indicated by RRC signaling to be associated with the PUSCH in the time domain using the same closed-loop power adjustment state, or to use an independent closed-loop power control adjustment state.

P _{O_SRS,b,f,c} (q _s ) represents the target received power of SRS.

α _SRS,b,f,c (q _s ) represents the weighting factor for path loss.

M _SRS,b,f,c (i) represents the transmission bandwidth allocated to SRS, i.e., the number of RBs occupied.

SRS power control is based on SRS resource sets, and SRS resources within an SRS resource set use the same power control parameters.

It should be noted that the meaning and value of the subscript k in the formula can be found in the above text. It will not be repeated here.

Example 2.2 PLO associated with TCI status, reporting virtual PHR

The formula for calculating PHR is as follows:

For details on the parameters in the formula, please refer to the text above.

Example 2.3 PLO associated with PL RS, reporting actual PHR

In Example 2.3, the case where PLO is associated with PL RS is considered. The formula for calculating PHR for the actual transmitted SRS is as follows:

PH _type3,b,f,c (i,q _s )＝P _CMAX,f,c (i)-{P _{O_SRS,b,f,c} (q _s )+10 log ₁₀ (2 ^μ ·M _SRS,b,f,c (i))+α _SRS,b,f,c (q _s )·(PL _b,f,c (q _d )±PLO(q _d ))+h _b,f,c (i)}[dB]

For details on the parameters in the formula, please refer to the text above.

Example 2.4 PLO associated with PL RS, reporting virtual PHR

In Example 2.4, the case where PLO is associated with PL RS is considered. For the reference SRS, the formula for calculating PHR is as follows:

For details on the parameters in the formula, please refer to the text above.

Example 3

Example 3 illustrates the impact of the path loss factor on the PHR. Here, the PHR can be type 1 or... Type 3 PHR. In other words, the path loss factor can affect either Type 1 or Type 3 PHR.

The path loss impact factor can range from 0 to 1.

Alternatively, the path loss factor can influence the PHR by adjusting the offset of the PL. This is a reasonable approach, as shown in the formula above.

Optionally, the path loss influencing factor first affects the path loss, and then the path loss offset is compensated. That is, the path loss is first multiplied by the path loss factor, and then the path loss offset is compensated.

Specifically, in the formula above, αb _,f,c (j)·(PLb _,f,c ( _qd )± _PLOk ) can be replaced with: _αb,f,c (j)·PLb _,f,c ( _qd )± _PLOk . _αb,f,c (j)·(PLb _,f,c ( _qd )± _PLOt ) can be replaced with: _αb,f,c (j)·PLb _,f,c ( _qd )± _PLOt . _αb,f,c (j)·(PLb _,f,c ( _qd )±PLO( _qd )) can be replaced with: _αb,f,c (j)·PLb _,f,c (qd ₎ ±PLO( _qd ). α _b,f,c (j)·(PL _b,f,c (q _d )±PLO _{(k )} ) can be replaced with: α _SRS,b,f,c (q _s )·PL _b,f,c (q _d )±PLO _{(k )} . _{α b,f,c} (j)·(PL _b,f,c (q _d )±PLO (q _d )) can be replaced with: α _SRS,b,f,c (q _s )·PL _b,f,c (q _d )±PLO (q _d ).

The method embodiments of this application have been described in detail above. The apparatus embodiments of this application are described in detail below. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments. Therefore, any parts not described in detail can be referred to the foregoing method embodiments.

Figure 4 is a schematic structural diagram of a terminal device 400 provided in an embodiment of this application. The terminal device 400 may include a transmitting unit 410.

The sending unit 410 is used to send first information to the network device; wherein the first information is used to indicate power margin, and the power margin is calculated based on the first path loss offset.

In some embodiments, the first path loss offset is associated with a first TCI state.

In some embodiments, the first TCI state is an uplink TCI state or a combined TCI state.

In some embodiments, the first path loss offset is associated with a path loss reference signal.

In some embodiments, the uplink signal for which the power margin is applied includes one or more of the following: PUSCH, SRS.

In some embodiments, power margin includes one or more of the following: actual power margin for the actually transmitted uplink signal; virtual power margin for a reference uplink signal.

In some embodiments, the power margin is a TRP-specific power margin, or a cell-specific power margin.

In some embodiments, the first path loss offset corresponds to the first path loss, and the power margin is determined based on a first value, which is determined based on one of the following: the sum of the first path loss offset and the first path loss; or the difference between the first path loss offset and the first path loss.

In some embodiments, the first path loss is obtained by adjusting the path loss influence factor; or, the first value is obtained by adjusting the path loss influence factor.

In an optional embodiment, the transmitting unit 410 may be a transceiver 630. The terminal device 400 may also include a processor 610 and a memory 620, as shown in FIG6.

Figure 5 is a schematic structural diagram of a network device 500 provided in an embodiment of this application. The network device 500 may include a receiving unit 510.

The receiving unit 510 is used to receive first information sent by the terminal device; wherein the first information is used to indicate power margin, and the power margin is calculated based on the first path loss offset.

In some embodiments, the first path loss offset is associated with a first TCI state.

In some embodiments, the first TCI state is an uplink TCI state or a combined TCI state.

In some embodiments, the first path loss offset is associated with a path loss reference signal.

In some embodiments, the uplink signal for which the power margin is applied includes one or more of the following: Physical Uplink Shared Channel (PUSCH) and Channel Sound Reference Signal (SRS).

In some embodiments, the power margin includes one or more of the following: the actual power margin for the actual transmitted uplink signal;

Virtual power margin for the reference uplink signal.

In some embodiments, the power margin is a TRP-specific power margin, or a cell-specific power margin.

In some embodiments, the first path loss offset corresponds to the first path loss, and the power margin is determined based on a first value, which is determined based on one of the following: the sum of the first path loss offset and the first path loss; or the difference between the first path loss offset and the first path loss.

In some embodiments, the first path loss is obtained by adjusting the path loss influence factor; or, the first value is obtained by adjusting the path loss influence factor.

In an optional embodiment, the receiving unit 510 may be a transceiver 630. The network device 500 may also include a processor 610 and a memory 620, as shown in FIG6.

Figure 6 is a schematic structural diagram of a communication apparatus according to an embodiment of this application. The dashed lines in Figure 6 indicate that the unit or module is optional. This apparatus 600 can be used to implement the methods described in the above method embodiments. The apparatus 600 can be a chip, a terminal device, or a network device.

Apparatus 600 may include one or more processors 610. The processor 610 may support apparatus 600 in implementing the methods described in the preceding method embodiments. The processor 610 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

The apparatus 600 may further include one or more memories 620. The memories 620 store a program that can be executed by the processor 610, causing the processor 610 to perform the methods described in the preceding method embodiments. The memories 620 may be independent of the processor 610 or integrated within the processor 610.

The device 600 may also include a transceiver 630. The processor 610 can communicate with other devices or chips via the transceiver 630. For example, the processor 610 can send and receive data with other devices or chips via the transceiver 630.

This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal or network device provided in this application, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

This application also provides a computer program. This computer program can be applied to the terminal or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of this application.

It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and/or other information.

In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

In the embodiments of this application, the term "and/or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and/or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship.

In the embodiments of this application, "comprising" can refer to direct inclusion or indirect inclusion. Optionally, "comprising" mentioned in the embodiments of this application can be replaced with "indicating" or "used to determine". For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B".

In the various embodiments of this application, the order of the above-mentioned processes does not imply 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 this application.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. 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. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims (43)

A wireless communication method, characterized in that it includes: The terminal device sends the first information to the network device; The first information is used to indicate the power margin, which is calculated based on the first path loss offset. The method according to claim 1, wherein the first path loss offset is associated with the first transmission configuration indication (TCI) status. According to the method of claim 2, the first TCI state is an uplink TCI state or a combined TCI state. The method according to claim 1, wherein the first path loss offset is associated with the path loss reference signal. The method according to any one of claims 1-4 is characterized in that the uplink signal to which the power margin is applied includes one or more of the following: Physical Uplink Shared Channel (PUSCH) and Channel Sound Reference Signal (SRS). The method according to any one of claims 1-5, characterized in that the power margin includes one or more of the following: The actual power margin for the uplink signal actually transmitted; Virtual power margin for the reference uplink signal. The method according to any one of claims 1-6, characterized in that, The power margin mentioned is the power margin specific to the Transmitter Point Receiving Point (TRP), or... The power margin mentioned is a power margin specific to the community. The method according to any one of claims 1-7, characterized in that the first path loss offset corresponds to the first path loss, and the power margin is determined based on a first value, which is determined based on one of the following: The sum of the first path loss offset and the first path loss; The difference between the first path loss offset and the first path loss. The method according to claim 8, characterized in that, The first path loss is the path loss obtained by adjusting the path loss influence factor; or, The first value is obtained by adjusting the path loss impact factor. A wireless communication method, characterized in that it includes: The network device receives the first information sent by the terminal device; The first information is used to indicate the power margin, which is calculated based on the first path loss offset. The method according to claim 10, wherein the first path loss offset is associated with the first transmission configuration indication (TCI) state. According to the method of claim 11, the first TCI state is an uplink TCI state or a combined TCI state. The method according to claim 10, wherein the first path loss offset is associated with the path loss reference signal. The method according to any one of claims 10-13 is characterized in that the uplink signal to which the power margin is applied includes one or more of the following: Physical Uplink Shared Channel (PUSCH) and Channel Sound Reference Signal (SRS). The method according to any one of claims 10-14, characterized in that the power margin includes one or more of the following: The actual power margin for the uplink signal actually transmitted; Virtual power margin for the reference uplink signal. The method according to any one of claims 10-15 is characterized in that, The power margin mentioned is the power margin specific to the Transmitter Point Receiving Point (TRP), or... The power margin mentioned is a power margin specific to the community. The method according to any one of claims 10-16, characterized in that the first path loss offset corresponds to the first path loss, and the power margin is determined based on a first value, which is determined based on one of the following: The sum of the first path loss offset and the first path loss; The difference between the first path loss offset and the first path loss. The method according to claim 17, characterized in that, The first path loss is the path loss obtained by adjusting the path loss influence factor; or, The first value is obtained by adjusting the path loss impact factor. A terminal device, characterized in that it comprises: The sending unit is used to send the first information to the network device; The first information is used to indicate the power margin, which is calculated based on the first path loss offset. The terminal device according to claim 19 is characterized in that the first path loss offset is associated with the first transmission configuration indication (TCI) status. The terminal device according to claim 20 is characterized in that the first TCI state is an uplink TCI state or a combined TCI state. The terminal device according to claim 19 is characterized in that the first path loss offset is associated with the path loss reference signal. The terminal device according to any one of claims 19-22 is characterized in that the uplink signal to which the power margin is applied includes one or more of the following: Physical Uplink Shared Channel (PUSCH) and Channel Sound Reference Signal (SRS). The terminal device according to any one of claims 19-23, wherein the power margin includes one or more of the following: The actual power margin for the uplink signal actually transmitted; Virtual power margin for the reference uplink signal. The terminal device according to any one of claims 19-24 is characterized in that, The power margin mentioned is the power margin specific to the Transmitter Point Receiving Point (TRP), or... The power margin mentioned is a power margin specific to the community. The terminal device according to any one of claims 19-25, characterized in that the first path loss offset corresponds to the first path loss, and the power margin is determined based on a first value, wherein the first value is determined based on one of the following: The sum of the first path loss offset and the first path loss; The difference between the first path loss offset and the first path loss. The terminal device according to claim 26 is characterized in that, The first path loss is the path loss obtained by adjusting the path loss influence factor; or, The first value is obtained by adjusting the path loss impact factor. A network device, characterized in that it comprises: The receiving unit is used to receive the first information sent by the terminal device; The first information is used to indicate the power margin, which is calculated based on the first path loss offset. The network device according to claim 28, wherein the first path loss offset is associated with the first transmission configuration indication (TCI) state. The network device according to claim 29 is characterized in that the first TCI state is an uplink TCI state or a combined TCI state. The network device according to claim 28, wherein the first path loss offset is associated with the path loss reference signal. The network device according to any one of claims 28-31 is characterized in that the uplink signal to which the power margin is applied includes one or more of the following: Physical Uplink Shared Channel (PUSCH) and Channel Sound Reference Signal (SRS). The network device according to any one of claims 28-32, wherein the power margin includes one or more of the following: The actual power margin for the uplink signal actually transmitted; Virtual power margin for the reference uplink signal. The network device according to any one of claims 28-33 is characterized in that, The power margin mentioned is the power margin specific to the Transmitter Point Receiving Point (TRP), or... The power margin mentioned is a power margin specific to the community. The network device according to any one of claims 28-34, characterized in that the first path loss offset corresponds to the first path loss, and the power margin is determined based on a first value, wherein the first value is determined based on one of the following: The sum of the first path loss offset and the first path loss; The difference between the first path loss offset and the first path loss. The network device according to claim 35 is characterized in that, The first path loss is the path loss obtained by adjusting the path loss influence factor; or, The first value is obtained by adjusting the path loss impact factor. A terminal device is characterized in that it includes a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to call the program in the memory, and control the transceiver to receive or send signals so that the terminal device performs the method as described in any one of claims 1-9. A network device, characterized in that it includes a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to invoke the program in the memory, and control the transceiver to receive or send signals, so that the network device performs the method as described in any one of claims 10-18. An apparatus, characterized in that it includes a processor for calling a program from a memory to cause the apparatus to perform the method as described in any one of claims 1-18. A chip, characterized in that it includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-18. A computer-readable storage medium, characterized in that it stores a program thereon, the program causing a computer to perform the method as described in any one of claims 1-18. A computer program product, characterized in that it includes a program that causes a computer to perform the method as described in any one of claims 1-18. A computer program, characterized in that the computer program causes a computer to perform the method as described in any one of claims 1-18.