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

Abstract

This disclosure provides a communication method, terminal, network device, system, and storage medium. The method includes: determining reference resources; determining resources for a path loss signal used to calculate path loss based on the reference resources, wherein the path loss is used by the terminal to determine the transmission power of an uplink signal; and receiving a path loss signal transmitted by the network device on the resources of the path loss signal. This disclosure improves the accuracy of path loss estimation, enhances the transmission performance of uplink signals, and increases the availability of flexible spectrum.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and in particular to communication methods, terminals, network devices, systems and storage media. Background Technology

[0002] Currently, the power of the terminal when sending uplink signals is related to path loss. To obtain the corresponding path loss, the terminal can calculate the corresponding path loss parameters based on the downlink reference signal. Summary of the Invention

[0003] To improve the accuracy of road loss estimation, embodiments of this disclosure provide a communication method, a terminal, a network device, a system, and a storage medium.

[0004] According to a first aspect of the present disclosure, a communication method is provided, the method being executed by a terminal, the method comprising:

[0005] Identify reference resources;

[0006] Based on the reference resources, resources for the path loss signal used to calculate path loss are determined, and the path loss is used by the terminal to determine the transmission power of the uplink signal;

[0007] On the resource of the path loss signal, the path loss signal is received from the network device.

[0008] According to a second aspect of the present disclosure, a communication method is provided, the method being performed by a network device, the method comprising:

[0009] Identify reference resources;

[0010] Based on the reference resources, resources for the path loss signal used to calculate path loss are determined, and the path loss is used by the terminal to determine the transmission power of the uplink signal;

[0011] On the resource of the road loss signal, the road loss signal is sent to the terminal.

[0012] According to a third aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0013] The processing module is configured to determine the reference resource;

[0014] The processing module is further configured to determine, based on the reference resources, the resources of the path loss signal used to calculate the path loss, wherein the path loss is used by the terminal to determine the transmission power of the uplink signal;

[0015] The transceiver module is configured to receive the path loss signal sent by the network device on the resource of the path loss signal.

[0016] According to a fourth aspect of the present disclosure, a network device is provided, the network device comprising:

[0017] The processing module is configured to determine the reference resource;

[0018] The processing module is further configured to determine, based on the reference resources, the resources of the path loss signal used to calculate the path loss, wherein the path loss is used by the terminal to determine the transmission power of the uplink signal;

[0019] The transceiver module is configured to send the path loss signal to the terminal on the resource of the path loss signal.

[0020] According to a fifth aspect of the present disclosure, a terminal is provided, comprising:

[0021] One or more processors;

[0022] The processor is used to execute the communication method described in any one of the first aspects.

[0023] According to a sixth aspect of the present disclosure, a network device is provided, comprising:

[0024] One or more processors;

[0025] The processor is used to execute the communication method described in any one of the second aspects.

[0026] According to a seventh aspect of the present disclosure, a communication system is provided, comprising:

[0027] A terminal, the terminal being configured to perform the communication method described in any one of the first aspects;

[0028] A network device configured to perform the communication method described in any one of the second aspects.

[0029] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform a communication method as described in either the first or second aspect.

[0030] According to a ninth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, is used to implement the communication method described in any one of the first or second aspects.

[0031] In this embodiment of the disclosure, the terminal can determine a reference resource, and based on the reference resource, determine a resource for calculating path loss signal. On the resource of the path loss signal, the terminal receives the path loss signal sent by the network device. The path loss can be used by the terminal to determine the transmission power of the uplink signal, which improves the accuracy of path loss estimation, improves the transmission performance of the uplink signal, and improves the availability of flexible spectrum.

[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0034] Figure 1A This is an exemplary schematic diagram of the architecture of a communication system provided according to embodiments of the present disclosure.

[0035] Figure 1B This is one of the exemplary schematic diagrams of uplink and downlink band pairing for existing frequency division multiplexing and flexible spectrum provided in the embodiments of this disclosure.

[0036] Figure 1C This is a second exemplary schematic diagram of uplink and downlink frequency band pairing for existing frequency division multiplexing and flexible spectrum provided in the embodiments of this disclosure.

[0037] Figure 2 This is an exemplary interactive diagram of a communication method provided according to an embodiment of the present disclosure.

[0038] Figure 3A This is one of the exemplary flowcharts of a communication method provided according to an embodiment of the present disclosure.

[0039] Figure 3B This is a second exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0040] Figure 4A This is an exemplary block diagram of a terminal provided according to an embodiment of the present disclosure.

[0041] Figure 4B This is an exemplary block diagram of a network device provided according to embodiments of the present disclosure.

[0042] Figure 5A This is an exemplary schematic diagram of a communication device provided according to an embodiment of the present disclosure.

[0043] Figure 5B This is an exemplary schematic diagram of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0044] This disclosure provides a communication method, terminal, network device, system, and storage medium.

[0045] In a first aspect, embodiments of this disclosure propose a communication method executed by a terminal, the method comprising: determining reference resources; determining, based on the reference resources, resources for calculating path loss signals, the path loss being used by the terminal to determine the transmission power of uplink signals; and receiving the path loss signal transmitted by a network device on the resources of the path loss signal.

[0046] In the above embodiments, the accuracy of path loss estimation is improved, the transmission performance of uplink signals is improved, and the availability of flexible spectrum is improved.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the reference resource is at least one of the following: frequency band; carrier; partial bandwidth BWP; frequency domain resources between a first frequency point and a second frequency point; cell; reference point for the resources of the path loss signal.

[0048] In the above embodiments, the reference resource can be at least one of the above-mentioned items, which improves the transmission reliability of the path loss signal and thus improves the accuracy of path loss estimation.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, determining the reference resource includes at least one of the following: receiving a first signaling sent by the network device, the first signaling being used by the terminal to determine the reference resource; and determining the reference resource based on a predefined method.

[0050] In the above embodiments, reference resources can be determined based on the above method, and then the resources of the path loss signal can be determined based on the reference resources, which improves the transmission reliability of the path loss signal and thus improves the accuracy of path loss estimation.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the first signaling is used by the terminal to determine the reference resource, including at least one of the following: determining the reference resource based on the resource indicated by the first signaling; determining the reference resource based on the resource index indicated by the first signaling; determining the reference resource based on the frequency domain offset indicated by the first signaling; wherein the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0052] In the above embodiments, the terminal can determine the reference resource based on the first signaling using the above method, which improves the reliability and flexibility of determining the reference resource.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, determining the reference resource based on a predefined method includes at least one of the following: determining a downlink frequency domain resource with the same resource index as the uplink frequency domain resource as the reference resource; determining a downlink frequency domain resource with the same resource range as the uplink frequency domain resource as the reference resource; determining a downlink frequency domain resource that has a pairing relationship with the uplink frequency domain resource as the reference resource; determining the reference resource based on a frequency domain offset; wherein the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell; wherein the uplink frequency domain resource is a frequency domain resource used to transmit the uplink signal.

[0054] In the above embodiments, the terminal can determine the reference resources based on a predefined method, which saves signaling resources and has high availability.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, determining the resources for calculating the path loss signal based on the reference resources includes at least one of the following: receiving a second signaling sent by the network device, the second signaling being used by the terminal to perform at least one of the following: determining the resources of the path loss signal in the reference resources; determining the resources of the path loss signal using the reference resources as a reference point; determining the resources of the path loss signal in the reference resources based on a predefined method; and determining the resources of the path loss signal using the reference resources as a reference point based on a predefined method.

[0056] In the above embodiments, the terminal can determine the resources of the path loss signal in the reference resources in the above manner, or determine the resources of the path loss signal by using the reference resources as a reference point, thereby improving the transmission reliability of the path loss signal.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the second signaling is used to indicate at least one of the following: the start position of the path loss signal; the end position of the path loss signal; the center frequency position of the path loss signal; the bandwidth of the path loss signal; the transmission power of the path loss signal; the time domain position of the path loss signal; the frequency band identifier of the path loss signal; the carrier identifier of the path loss signal; the cell identifier of the path loss signal; the partial bandwidth (BWP) identifier of the path loss signal; the path loss signal index; and the offset of the path loss signal's resource relative to the reference resource.

[0058] In the above embodiments, the second signaling can be used to indicate at least one of the above, thereby improving the transmission reliability of the path loss signal.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the second signaling is at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) signaling; Media Access Control Unit (MAC CE); Downlink Control Information (DCI).

[0060] In the above embodiments, the second signaling can be at least one of the above-mentioned methods, which is simple to implement and highly available.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: determining a downlink signal with a signal quality greater than or equal to a threshold as the path loss signal when the second signaling does not indicate a path loss signal index.

[0062] In the above embodiments, the terminal can determine the path loss signal based on the above method, thereby improving the transmission reliability of the path loss signal.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: determining the path loss based on the transmission power of the path loss signal and the reception power of the path loss signal after higher-layer filtering.

[0064] In the above embodiments, the terminal can determine the path loss based on the above method, and then determine the transmission power of the uplink signal, thereby improving the transmission performance of the uplink signal and improving the availability of flexible spectrum.

[0065] Secondly, embodiments of this disclosure propose a communication method executed by a network device, the method comprising: determining reference resources; determining, based on the reference resources, resources for calculating path loss signals, the path loss being used by the terminal to determine the transmission power of an uplink signal; and transmitting the path loss signal to the terminal on the resources of the path loss signal.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the reference resource is at least one of the following: frequency band; carrier; partial bandwidth BWP; frequency domain resources between a first frequency point and a second frequency point; cell; reference point for the resources of the path loss signal.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, determining the reference resource includes: determining the reference resource based on a predefined method.

[0068] In conjunction with some embodiments of the second aspect, in some embodiments, determining the reference resource based on a predefined method includes at least one of the following: determining a downlink frequency domain resource with the same resource index as the uplink frequency domain resource as the reference resource; determining a downlink frequency domain resource with the same resource range as the uplink frequency domain resource as the reference resource; determining a downlink frequency domain resource that has a pairing relationship with the uplink frequency domain resource as the reference resource; determining the reference resource based on a frequency domain offset; wherein the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell; wherein the uplink frequency domain resource is a frequency domain resource used to transmit the uplink signal.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending a first signaling to the terminal, the first signaling being used by the terminal to determine the reference resource.

[0070] In conjunction with some embodiments of the second aspect, in some embodiments, the first signaling is used to indicate at least one of the following: a resource; a resource index; a frequency domain offset, wherein the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0071] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following: determining the resources of the road loss signal in the reference resources based on a predefined method; and determining the resources of the road loss signal using the reference resources as reference points based on a predefined method.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending a second signaling to the terminal, the second signaling being used by the terminal to perform at least one of the following: determining the resource of the path loss signal in the reference resource; and determining the resource of the path loss signal with the reference resource as a reference point.

[0073] In conjunction with some embodiments of the second aspect, in some embodiments, the second signaling is used to indicate at least one of the following: the start position of the path loss signal; the end position of the path loss signal; the center frequency position of the path loss signal; the bandwidth of the path loss signal; the transmission power of the path loss signal; the time domain position of the path loss signal; the frequency band identifier of the path loss signal; the carrier identifier of the path loss signal; the cell identifier of the path loss signal; the partial bandwidth (BWP) identifier of the path loss signal; the path loss signal index; and the offset of the path loss signal's resource relative to the reference resource.

[0074] In conjunction with some embodiments of the second aspect, in some embodiments, the second signaling is at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) signaling; Media Access Control Unit (MAC CE); Downlink Control Information (DCI).

[0075] Thirdly, embodiments of this disclosure provide a terminal, the terminal comprising: a processing module configured to determine reference resources; the processing module further configured to determine, based on the reference resources, resources for calculating path loss signals, the path loss being used by the terminal to determine the transmission power of uplink signals; and a transceiver module configured to receive the path loss signals sent by network devices on the resources of the path loss signals.

[0076] Fourthly, embodiments of this disclosure provide a network device comprising: a processing module configured to determine reference resources; the processing module further configured to determine, based on the reference resources, resources for calculating path loss signals, the path loss being used by the terminal to determine the transmission power of an uplink signal; and a transceiver module configured to transmit the path loss signal to the terminal on the resources of the path loss signal.

[0077] Fifthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the processors are configured to execute the communication method described in any one of the first aspects.

[0078] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the processors are configured to perform the communication method described in any one of the second aspects.

[0079] In a seventh aspect, embodiments of this disclosure provide a communication system comprising: a terminal configured to perform the communication method described in any one aspect; and a network device configured to perform the communication method described in any one aspect.

[0080] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in either the first or second aspect.

[0081] In a ninth aspect, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a processor, is used to implement the communication method described in any one of the first or second aspects.

[0082] It is understood that the aforementioned terminals, network devices, communication systems, and storage media are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0083] This disclosure provides communication methods, terminals, network devices, systems, and storage media. In some embodiments, the terms "communication method" and "information transmission method," "information processing method," etc., can be used interchangeably; the terms "communication device" and "information transmission device," "information processing device," etc., can be used interchangeably; and the terms "information transmission system," "information processing system," "communication system," etc., can be used interchangeably.

[0084] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0085] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0086] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0087] In this disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the aforementioned," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular or a plural expression.

[0088] In the embodiments disclosed herein, "multiple" refers to two or more.

[0089] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0090] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0091] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0092] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0093] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0094] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "entity", "body", etc.

[0095] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0096] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0097] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0098] Figure 1A This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0099] like Figure 1A As shown, the communication system 100 includes a terminal 101 and a network device 102.

[0100] In some embodiments, terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0101] In one example, terminal 101 may be an LPWA terminal or a high-end terminal, which is not limited in this disclosure.

[0102] In some embodiments, network device 102 may include at least one of access network device 102-1 and core network device 102-2.

[0103] In some embodiments, the access network device 102-1 is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: an evolved Node B (eNB), a next-generation eNB (ng-eNB), a next-generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

[0104] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0105] In some embodiments, the access network device 102-2 may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. By adopting the CU-DU structure, the protocol layer of the access network device can be separated. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU. However, this is not the only possibility.

[0106] In some embodiments, the core network device 102-2 may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0107] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0108] The following embodiments of this disclosure can be applied to Figure 1A The communication system 100 shown, or a part thereof, but not limited to it. Figure 1A The entities shown are illustrative; a communication system may include... Figure 1A All or part of the main body, or may include Figure 1A Other entities besides the main body, the number and form of each entity are arbitrary, each entity can be physical or virtual, the connection relationship between the entities is illustrative, the entities can be unconnected or connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0109] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Futuregeneration radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0110] In some embodiments, the terminal transmits uplink signals, such as the Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), and Physical Uplink Control Channel (PUCCH), the power of which is related to path loss. To obtain the corresponding path loss, the terminal calculates the corresponding path loss parameters based on downlink reference signals, such as the Synchronization Signal and PBCHBlock (SSB) or Channel State Information-Reference Signal (CSI-RS). The downlink reference signal is located on the local cell or the primary cell (Pcell) associated with the local cell.

[0111] For future versions, such as 6G, the concept of flexible spectrum has been proposed to make more flexible use of spectrum resources. For example, downlink (DL) carriers and uplink (UL) carriers in a cell can be flexibly paired based on the operator's spectrum resource pool, without being limited by the frequency band restrictions of existing time division multiplexing (TDD) and / or frequency division multiplexing (FDD) bands.

[0112] Flexible spectrum greatly improves the flexibility of resource scheduling, but it also poses challenges to existing power control mechanisms.

[0113] by Figure 1B For example, corresponding to the existing mechanism, the terminal calculates the corresponding path loss based on the path loss reference signal received from the DL band. Considering that the frequency domain ranges of the UL band and DL band are relatively close, the downlink path loss is approximately the same as the uplink path loss. However, in flexible spectrum scenarios, the frequency domain ranges of the UL band and DL band may differ significantly. In this scenario, if the terminal still calculates the path loss based on the downlink band received from its own cell, it may differ significantly from the uplink path loss. If the terminal still determines the uplink signal transmission power based on the existing mechanism, it will significantly reduce the uplink signal transmission performance.

[0114] For future versions, such as 6G, to achieve rapid scheduling and handover of carrier resources while reducing the overhead of common signals, such as SSBs, 6G considers configuring multiple discrete carriers based on a single cell. That is, a single cell contains multiple discrete carrier resources. Compared to carrier aggregation (CA), scheduling multiple discrete carriers based on a single cell allows for much faster resource scheduling.

[0115] Corresponding to the above scenarios, for example Figure 1C As shown, a cell may correspond to multiple discrete uplink frequency domain resources and multiple discrete downlink frequency domain resources. If the frequency domain resources corresponding to the downlink reference signal used to calculate path loss are too far apart from the frequency domain resources corresponding to the uplink transmission, the path loss estimation may be inaccurate, thereby reducing the uplink signal transmission performance.

[0116] In some embodiments, taking PUSCH as an example, its power control parameters can be determined based on Formula 1:

[0117] Among them, PL b,f,c (q d ) is the terminal based on the downlink reference signal q d The calculated downlink path loss is expressed in decibels (dB), and the downlink path loss corresponds to the downlink active bandwidth part (active BWP) of carrier f and serving cell c.

[0118] The road loss can be calculated based on the following formula 2:

[0119] PL b,f,c (q d Formula 2: ) = Reference Signal Power - Higher Layer Filtered Reference Signal Received Power (RSRP)

[0120] Among them, referenceSignalPower can be configured based on higher-level signaling, and the specific determination method is shown in Table 1:

[0121] Table 1

[0122]

[0123] Among them, ss-PBCH-BlockPower is used to indicate the average Energy Per Resource Element (EPRE) power of the Secondary Synchronization Signal (SSS), and powerControlOffsetSS is used to indicate the power offset of the transmission resource element (RE) of the Non-Zero-Power Channel State Information-Reference Signal (NZP CSI-RS) compared to the transmission RE of the SSS.

[0124] The higher layer filtered RSRP is calculated based on the higher layer filter of the reference cell.

[0125] The downlink reference signal q d The cell where the transmission occurs is determined based on the following method:

[0126] The signaling is based on the path loss reference linking (SCR) indication cell. The signaling is used to instruct the terminal to calculate the path loss based on a special cell (Spcell), such as the primary cell (PCell), primary secondary cell (PSCell), or the reference signal corresponding to the secondary cell (Scell); otherwise, the reference signal is the reference signal transmitted by the serving cell c.

[0127] The downlink reference signal q d The reference signal q is determined based on the signaling configuration, specifically by configuring the SSB or CSI-RS index through signaling. d .

[0128] For other uplink signals, such as PUCCH and SRS, the path loss calculation method is the same as described above, and will not be repeated here.

[0129] In some embodiments, the existing mechanism is designed for scenarios where UL and DL are paired in a fixed frequency domain. Introducing the existing mechanism into a flexible spectrum scenario may lead to inaccurate path loss estimation, thereby reducing uplink signal transmission performance.

[0130] To improve the accuracy of road loss estimation and enhance uplink signal transmission performance, embodiments of this disclosure provide the following communication methods, terminals, network devices, systems, and storage media.

[0131] Figure 2 This is an interactive schematic diagram illustrating a communication method according to an embodiment of this disclosure. For example... Figure 2 As shown, the embodiments of this disclosure relate to a communication method, which includes:

[0132] In step S2101, network device 102 determines the reference resource.

[0133] In some embodiments, reference resources can be used to determine the resources of the path loss signal.

[0134] In one example, the resources for path loss signals can refer to the resources for transmitting path loss signals, such as the resources for network devices to send path loss signals, and / or the resources for terminals to receive path loss signals.

[0135] This disclosure does not limit the name of the road loss signal resource, and it can be interchanged with "transmission resource of road loss signal" or "road loss signal resource".

[0136] In some embodiments, the path loss signal can be used to calculate path loss, which can be used to determine the transmission power of the uplink signal.

[0137] In some embodiments, the path loss signal may be at least one of the following: SSB; CSI-RS; Primary Synchronization Signal (PSS); Secondary Synchronization Signal (SSS); Positioning Reference Signal (PRS); Physical Downlink Control Channel (PDCCH); Physical Broadcast Channel (PBCH); Physical Downlink Shared Channel (PDSCH).

[0138] In some embodiments, the reference resource may be at least one of the following: a band; a carrier; a bandwidth part (BWP); a frequency domain resource between a first frequency point and a second frequency point; a cell; or a reference point for the resource of a path loss signal.

[0139] In one example, if the reference resource is a frequency band, that frequency band could be a downlink frequency band.

[0140] In one example, where the reference resource is a carrier, that carrier can be a downlink carrier.

[0141] In one example, if the reference resource is a BWP, then the BWP can be a downlink BWP.

[0142] In one example, if the reference resource is a frequency domain resource between a first frequency point and a second frequency point, the reference resource can be a frequency domain resource between two frequency points, such as a frequency domain resource between 100 MHz and 200 MHz.

[0143] In one example, in a CA scenario, the resources corresponding to at least one cell can be identified as reference resources.

[0144] For example, in a CA scenario, the path loss parameters corresponding to the uplink transmission of this cell, such as Scell, can be calculated based on the downlink path loss signals of other cells, such as Pcell.

[0145] In one example, when the reference resource is a reference point for the path loss signal, the reference resource can be the frequency domain resource of Common Resource Block #0 (CRB#0) and / or reference point A. CRB#0 and / or point A can be used to determine the frequency domain location of the Non-Zero-Power Channel State Information-Reference Signal (NZP CSI-RS).

[0146] In some embodiments, network device 102 may determine reference resources based on a predefined method.

[0147] In some embodiments, network device 102 may determine reference resources based on its own implementation.

[0148] In some embodiments, network device 102 may identify a downlink frequency domain resource with the same resource index as the uplink frequency domain resource as the reference resource.

[0149] The uplink frequency domain resources are frequency domain resources used to transmit the uplink signals, including but not limited to uplink frequency bands, uplink carriers, and uplink BWPs.

[0150] For example, network device 102 can identify a downlink frequency band with the same frequency band index as the uplink frequency band as a reference resource.

[0151] For example, network device 102 can identify a downlink carrier with the same carrier index as the uplink carrier as a reference resource.

[0152] For example, network device 102 can identify a downlink carrier located in the same cell as the uplink carrier as a reference resource.

[0153] For example, network device 102 can identify a downlink BWP with the same BWP index as the uplink BWP as a reference resource.

[0154] In some embodiments, network device 102 may identify a downlink frequency domain resource with the same resource range as the uplink frequency domain resource as the reference resource.

[0155] In one example, the resource range of uplink frequency domain resources can refer to the number of frequency domain resources included in the uplink frequency domain resources. For example, the number of resource blocks included in the uplink frequency band, the number of resource blocks included in the uplink BWP, the number of resource blocks included in the uplink carrier, etc.

[0156] In one example, network device 102 can, in a time-division multiplexing scenario, determine the downlink frequency domain resource with the same resource range as the uplink frequency domain resource as the reference resource.

[0157] For example, in a time-division multiplexing scenario, network device 102 can determine the downlink frequency band, downlink carrier, or downlink BWP that has the same frequency domain resource range as the uplink frequency band, uplink carrier, or uplink BWP as the reference resource.

[0158] In some embodiments, network device 102 may identify downlink frequency domain resources that are paired with uplink frequency domain resources as the reference resources.

[0159] In one example, when the reference resource is a frequency band, that frequency band can be a frequency band in the current FDD scenario that has a pairing relationship with the uplink frequency band.

[0160] The uplink frequency domain resources are frequency domain resources used to transmit the uplink signals, including but not limited to uplink frequency bands, uplink carriers, and uplink BWPs.

[0161] In one example, when the reference resource is a carrier, the frequency band of that carrier can be a frequency band in the current FDD scenario that has a pairing relationship with the uplink frequency band.

[0162] In one example, when the reference resource is a BWP, the frequency band where the BWP is located can be a frequency band that has a pairing relationship with the uplink frequency band in the current FDD scenario.

[0163] In one example, the indexes and / or identifiers of uplink and downlink frequency domain resources that are paired can be the same.

[0164] For example, uplink and downlink frequency bands that are paired have the same frequency band index and / or frequency band identifier.

[0165] For example, uplink and downlink carriers that are paired have the same carrier index and / or carrier identifier.

[0166] For example, upstream and downstream BWPs with a pairing relationship have the same BWP index and / or BWP identifier.

[0167] In some embodiments, network device 102 may determine the reference resource based on a frequency domain offset. The frequency domain offset is the offset of the reference resource relative to a corresponding frequency domain resource.

[0168] The cell-corresponding frequency domain resources can be the cell uplink frequency domain resource range, which can refer to the frequency domain resource range available to terminal 101 when transmitting uplink information within the cell. For example, the cell uplink frequency domain resource range can be at least one of the following: uplink frequency band, uplink carrier, cell, uplink BWP, and uplink transmission signal corresponding resources.

[0169] The cell-corresponding frequency domain resources can be the cell downlink frequency domain resource range, which can refer to the frequency domain resource range available to terminal 101 when receiving downlink information within the cell. For example, the cell downlink frequency domain resource range can be at least one of the following: downlink frequency band, downlink carrier, cell, downlink BWP, and downlink transmission signal corresponding resources.

[0170] The frequency offset can be determined based on a predefined method.

[0171] In one example, if the frequency domain location of the cell's corresponding frequency domain resource is less than the frequency domain location of the reference resource, the frequency domain offset Δ can be less than 0; if the frequency domain location of the cell's corresponding frequency domain resource is greater than the frequency domain location of the reference resource, the frequency domain offset Δ can be greater than 0.

[0172] In one example, if the frequency domain location of the cell's corresponding frequency domain resource is less than the frequency domain location of the reference resource, the frequency domain offset Δ can be greater than 0; if the frequency domain location of the cell's corresponding frequency domain resource is greater than the frequency domain location of the reference resource, the frequency domain offset Δ can be less than 0.

[0173] In one example, network device 102 can determine a reference resource f = f0 - Δ, where Δ is the frequency domain offset and f0 is the frequency domain resource corresponding to the cell.

[0174] For example, f0 can be the lowest frequency domain location, the highest frequency domain location, or the center frequency domain location of the downlink frequency domain resources of the cell, and this disclosure does not limit it. Correspondingly, the reference resource f can be the lowest frequency domain location, the highest frequency domain location, or the center frequency domain location of the path loss signal transmission, and this disclosure also does not limit it.

[0175] The above is merely an illustrative example, and this disclosure does not limit the number or type of reference resources.

[0176] In some embodiments, the name of the reference resource is not limited and can be interchanged with "reference frequency domain resource", "resource range", etc.

[0177] The above is merely an illustrative example, and this disclosure does not limit the method by which network device 102 determines reference resources.

[0178] In step S2102, network device 102 sends the first signaling to terminal 101.

[0179] In some embodiments, terminal 101 receives a first signaling.

[0180] In some embodiments, the first signaling is used by terminal 101 to determine reference resources.

[0181] In some embodiments, the first signaling may be used to indicate at least one of the following: a resource; a resource index; a resource offset.

[0182] In one example, network device 102 can send the determined reference resources directly to terminal 101 via first signaling.

[0183] In one example, network device 102 can send the resource index of the determined reference resource to terminal 101 via a first signaling.

[0184] In one example, network device 102 can send a resource offset to terminal 101 via a first signaling. The resource offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0185] Among them, the frequency domain resources corresponding to the cell can be the downlink frequency domain resource range of the cell, and the downlink frequency domain resource range of the cell can refer to the frequency domain resource range available to the terminal 101 when receiving downlink information in the cell.

[0186] In some embodiments, the first signaling may be at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) signaling; Media Access Control-Control Element (MAC CE); Downlink Control Information (DCI). Wherein, SIB may be SIBn, where n is a positive integer, such as 1, 2, 3, ...

[0187] In some embodiments, when the network device 102 determines a reference resource based on its own implementation, it may send a first signaling to the terminal 101 so that the terminal 101 can determine the reference resource based on the first signaling.

[0188] In some embodiments, network device 102 may send a first signaling to terminal 101 based on a request from terminal 101.

[0189] In some embodiments, network device 102 may send a first signaling to terminal 101 after updating reference resources.

[0190] In some embodiments, network device 102 may send a first signaling to terminal 101 if it is unable to determine the reference resource based on a predefined method.

[0191] In some embodiments, network device 102 may send first signaling to terminal 101 in a scenario employing dynamic spectrum.

[0192] The above is merely an illustrative example, and this disclosure does not limit the timing or event that triggers network device 102 to send the first signaling.

[0193] In some embodiments, step S2102 is an optional execution step. For example, if terminal 101 determines the reference resource based on a predefined method, step S2102 may not be executed.

[0194] In step S2103, terminal 101 determines the reference resource.

[0195] In some embodiments, terminal 101 may determine reference resources based on a predefined method.

[0196] In one example, terminal 101 may identify a downlink frequency domain resource with the same resource index as the uplink frequency domain resource as the reference resource.

[0197] In one example, terminal 101 may identify a downlink frequency domain resource with the same resource range as the uplink frequency domain resource as the reference resource.

[0198] In one example, terminal 101 may identify a downlink frequency domain resource that is paired with an uplink frequency domain resource as the reference resource.

[0199] In one example, terminal 101 may determine the reference resource based on the frequency domain offset.

[0200] Wherein, the reference resource f = f0 - Δ, where Δ is the frequency domain offset and f0 is the frequency domain resource corresponding to the cell.

[0201] For example, if the frequency domain offset Δ is less than 0, the frequency domain position of the corresponding frequency domain resource of the cell is less than the frequency domain position of the reference resource; if the frequency domain offset Δ is greater than 0, the frequency domain position of the corresponding frequency domain resource of the cell is greater than the frequency domain position of the reference resource.

[0202] For example, if the frequency domain offset Δ is less than 0, the frequency domain position of the corresponding frequency domain resource of the cell is greater than the frequency domain position of the reference resource; if the frequency domain offset Δ is greater than 0, the frequency domain position of the corresponding frequency domain resource of the cell is less than the frequency domain position of the reference resource.

[0203] For example, f0 can be the lowest frequency domain location, the highest frequency domain location, or the center frequency domain location of the downlink frequency domain resources of the cell, and this disclosure does not limit it. Correspondingly, the reference resource f can be the lowest frequency domain location, the highest frequency domain location, or the center frequency domain location of the path loss signal transmission, and this disclosure also does not limit it.

[0204] In some embodiments, terminal 101 may determine reference resources based on first signaling.

[0205] In one example, terminal 101 can identify the resource indicated by the first signaling as the reference resource.

[0206] In one example, terminal 101 can determine the resource corresponding to the resource index based on the resource index indicated by the first signaling, thereby determining the reference resource.

[0207] For example, the first signaling indicates a frequency band index that corresponds to a resource within a resource range, and the terminal 101 determines the resource within that resource range as a reference resource.

[0208] In one example, terminal 101 may determine the reference resource based on the resource offset indicated by the first signaling.

[0209] For example, the reference resource f = f0 - Δ, where Δ is the frequency domain offset and f0 is the frequency domain resource corresponding to the cell. The specific determination method will not be elaborated here.

[0210] In step S2104, network device 102 determines the resources of the path loss signal.

[0211] In some embodiments, the resources for path loss signals refer to the resources used to transmit path loss signals. These resources include the resources used by the network device to transmit path loss signals and / or the resources used by the terminal to receive path loss signals. In some embodiments, the network device 102 may determine the resources for path loss signals based on a predefined method.

[0212] In some embodiments, network device 102 may determine the resources of path loss signals based on its own implementation.

[0213] In some embodiments, network device 102 may determine the resources of path loss signals in reference resources.

[0214] In some embodiments, network device 102 may identify resources in reference resources used for transmitting a specific path loss signal as the resources for that path loss signal. For example, predefined resources in reference resources used for transmitting SSB may be identified as the resources for the path loss signal.

[0215] In some embodiments, network device 102 may use reference resources as reference points to determine the resources of path loss signals.

[0216] The above is merely an illustrative example, and this disclosure does not limit the method by which network device 102 determines the resources of the path loss signal.

[0217] In step S2105, network device 102 sends a second signaling message to terminal 101.

[0218] In some embodiments, terminal 101 receives a second signaling.

[0219] In some embodiments, the second signaling is used by terminal 101 to determine the resources of the path loss signal based on reference resources.

[0220] It is understandable that terminal 101 can also determine the resources of the path loss signal in the reference resources based on predefined methods and / or terminal implementations.

[0221] In some embodiments, the second signaling may be used to indicate at least one of the following: the start position of the path loss signal; the end position of the path loss signal; the center frequency position of the path loss signal; the bandwidth of the path loss signal; the transmission power of the path loss signal; the time domain position of the path loss signal; the frequency band identifier of the path loss signal; the carrier identifier of the path loss signal; the cell identifier of the path loss signal; the BWP identifier of the path loss signal; the path loss signal index; and the offset of the path loss signal's resources relative to the reference resources.

[0222] In one example, the resources of the path loss signal can be determined using a reference resource as a reference point, such as based on CRB#0 and / or point A. CRB#0 and / or point A can be used to determine the frequency domain location of the path loss signal NZP CSI-RS.

[0223] For example, the starting frequency domain position of the NZP-CSI-RS can be determined based on the offset relative to CRB#0 and / or point A.

[0224] In one example, the resource for the path loss signal can be determined in the reference resources.

[0225] In one example, the starting position of the path loss signal can be determined based on the absolute frequency domain position, such as the Absolute Radio Frequency Channel Number (ARFCN) in the reference resource. Each ARFCN corresponds to a unique frequency domain position.

[0226] In one example, the end position of the path loss signal can be determined based on a reference resource, such as reference resource CRB#0 and / or point A and offset.

[0227] In one example, the end position of the path loss signal can be determined based on the absolute frequency domain position.

[0228] In one example, the center frequency location of the path loss signal can be determined based on reference resources, such as reference resource CRB#0 and / or point A and offset, to determine the end location of the path loss signal.

[0229] In one example, the center frequency location of the path loss signal can be determined based on its absolute frequency domain location.

[0230] In one example, the path loss signal index can be, for example, the SSB index within the SSB burst set, and / or, the CSI-RS index.

[0231] In one example, the transmission power of the path loss signal can be the power at which the network device transmits the path loss signal.

[0232] In one example, network device 102 can indicate the transmission power of the path loss signal SSB by indication signaling, such as SSS transmit power (e.g., ss-PBCH-BlockPower).

[0233] In one example, network device 102 can indicate the transmission power of the path loss signal CSI-RS by indication signaling, such as CSI-RS transmission power offset relative to SSS (e.g., powerControlOffsetSS).

[0234] In one example, the time-domain location of the path loss signal may include, but is not limited to, at least one of the following: the start position in the time domain; the end position in the time domain.

[0235] The above is merely an illustrative example, and this disclosure does not limit the content of the second signaling instruction.

[0236] In some embodiments, the second signaling may be at least one of the following: SIB; RRC signaling; MAC CE; DCI.

[0237] Where SIB can be SIBn, and n can be a positive integer.

[0238] In some embodiments, step S2105 is an optional execution step. For example, if terminal 101 determines the resources of the road loss signal based on a predefined method, step S2105 may not be executed.

[0239] In step S2106, terminal 101 determines the resources of the path loss signal.

[0240] In some embodiments, terminal 101 may determine the resources of the path loss signal based on the second signaling.

[0241] It is understandable that terminal 101 can determine the resources of the path loss signal within the reference resources based on the second signaling. Alternatively, terminal 101 can determine the resources of the path loss signal with the reference resources as a reference point based on the second signaling.

[0242] In one example, the second signaling indicates the path loss signal index, and terminal 101 can determine the path loss signal, including but not limited to determining the type of path loss signal, the transmission power of the path loss signal, the resources of the path loss signal, etc.

[0243] In one example, terminal 101 receives configuration information provided by network device 102 in the cell where the uplink signal is transmitted, such as receiving second signaling, to determine the path loss signal index. For example, at least one of the following: SSB index, CSI-RS index, PDCCH index, PDSCH index, PBCH index, PSS index, and SSS index.

[0244] The path loss signal index is associated with a specific resource. Taking the path loss resource index as an example, which corresponds to the CSI-RS resource, the terminal determines the relevant transmission information of the CSI-RS resource associated with the path loss resource index based on a predefined or signaling indication method, such as the transmission power of the CSI-RS and the resource of the path loss signal.

[0245] Taking the SSB resource corresponding to the road loss resource index as an example, the terminal determines the relevant transmission information of the SSB resource associated with the road loss resource index based on a predefined or signaling indication method, such as the transmission power of the SSB and the resources of the road loss signal.

[0246] Furthermore, within the reference resources, the terminal 101 determines the transmission information of the path loss signal based on the resources of the path loss signal. Subsequently, it can search for and receive the path loss signal within the reference resources, thereby determining the path loss based on the path loss signal.

[0247] For example, terminal 101 receives configuration information provided by network equipment in the cell where the uplink signal is transmitted, determines the SSB index, and based on the SSB index, searches for and receives SSBs in the reference resources according to the resources of the corresponding SSB, so as to calculate the path loss based on the SSB.

[0248] In one example, the second signaling indicates the offset of the resource relative to a reference resource, and terminal 101 can determine the resource of the path loss signal based on the reference resource, such as CRB#0 and / or point A, and the offset.

[0249] In some embodiments, terminal 101 may determine the resources of the path loss signal based on a predefined method and / or terminal implementation.

[0250] It is understood that terminal 101 can determine the resources of the path loss signal within the reference resources based on a predefined method and / or terminal implementation. Alternatively, terminal 101 can determine the resources of the path loss signal using the reference resources as a reference point, based on a predefined method and / or terminal implementation.

[0251] In one example, if the second signaling does not indicate the path loss signal index, i.e. the network device does not send the path loss signal index, the terminal 101 can determine the path loss signal based on a predefined method, including but not limited to determining the type of the path loss signal, the transmission power of the path loss signal, the resources of the path loss signal, etc.

[0252] For example, terminal 101 can identify at least one of the following downlink signals with signal quality greater than or equal to a threshold: SSB, CSI-RS, PRS, PDCCH, PDSCH, and PBCH, as the path loss signal.

[0253] The threshold can be determined by the network device through signaling configuration and / or based on a predefined method. This disclosure does not limit this.

[0254] For example, terminal 101 can determine the resources of the path loss signal based on the determined path loss signal. For instance, if terminal 101 determines that the path loss signal is an SSB with signal quality greater than or equal to a threshold, it can determine the resources predefined in the reference resources for transmitting the SSB as the resources of the path loss signal.

[0255] For example, terminal 101 can determine the maximum allowable transmission power of the cell as the transmission power of the path loss signal.

[0256] It is understood that the transmission power of the path loss signal can be determined based on a second signaling and / or a predefined method. For example, the second signaling can indicate that the transmission power of the path loss signal is the maximum transmission power allowed by the cell; or, for another example, the second signaling can indicate the transmission power of the path loss signal; or, for yet another example, the terminal determines the maximum transmission power allowed by the cell as the transmission power of the path loss signal based on a predefined method and / or terminal implementation. This disclosure does not limit the method by which the terminal determines the transmission power of the path loss signal.

[0257] The above is merely an illustrative example, and this disclosure does not limit the method by which the terminal 101 determines the transmission power of the path loss signal and / or the resources of the path loss signal.

[0258] In step S2107, the network device sends the path loss signal to terminal 101.

[0259] In some embodiments, terminal 101 receives the path loss signal.

[0260] In some embodiments, network device 102 sends the path loss signal to terminal 101 based on the resources of the path loss signal.

[0261] In some embodiments, terminal 101 receives the path loss signal on the resource determined in the reference resource.

[0262] In step S2108, terminal 101 determines the road loss.

[0263] In some embodiments, terminal 101 may determine the path loss based on the transmission power of the path loss signal and the received power of the path loss signal after higher-layer filtering, according to the following formula 2:

[0264] PL b,f,c (q d = Reference Signal Power - Received Signal Power (RSRP) of Higher Layer Filtering (Formula 2)

[0265] Specifically, `referenceSignalPower` can be determined based on the transmission power of the path loss signal. For example, if the path loss signal is SSB, it can be determined based on indication signaling such as `ss-PBCH-BlockPower`. As another example, if the path loss signal is CSI-RS, and network device 102 is configured with periodic NZP-CSI-RS, terminal 101 can determine the transmission power of CSI-RS based on indication signaling such as `ss-PBCH-BlockPower` and / or `powerControlOffsetSS`.

[0266] The higher layer filtered RSRP can be calculated by terminal 101 based on the configured filter and path loss signal.

[0267] The above is merely an illustrative example, and this disclosure does not limit the method by which terminal 101 determines road loss.

[0268] Step S2109: Terminal 101 determines the transmission power of the uplink signal.

[0269] In some embodiments, terminal 101 may determine the transmission power of the uplink signal based on the calculated path loss.

[0270] In some embodiments, the uplink signal includes, but is not limited to, at least one of the following: SRS; PUSCH; PUCCH; PRACH.

[0271] Taking the upstream signal as PUSCH as an example, the transmission power of PUSCH can be calculated using the aforementioned Formula 1.

[0272] Taking the upstream signal as SRS, PUCCH, or PRACH as an example, the transmission power of SRS, PUCCH, or PRACH can be obtained by a calculation method similar to Formula 1 mentioned above.

[0273] The above is merely an illustrative example, and this disclosure does not limit the method by which the terminal determines the transmission power of the uplink signal.

[0274] In step S2110, terminal 101 sends an uplink signal to network device 102.

[0275] In some embodiments, network device 102 receives the uplink signal.

[0276] In some embodiments, terminal 101 transmits the uplink signal to network device 102 according to the transmission power of the uplink signal.

[0277] In some embodiments, step S2110 is an optional step. For example, if terminal 101 has no uplink signaling or uplink data to send, step S2110 may not be executed.

[0278] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0279] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0280] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0281] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0282] In some embodiments, the communication method involved in this disclosure may include at least one of steps S2101 to S2110. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, step S2101+S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, step S2101+S2102+S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, step S2105 can be implemented as an independent embodiment, step S2104+S2105 can be implemented as an independent embodiment, and step S2106 can be implemented as an independent embodiment. Steps S2104+S2105+S2106 can be implemented as independent embodiments, as can step S2107, step S2108, step S2109, step S2108+S2109, step S2110, step S2108+S2109+S2110, and steps S2101 to S2110 can be implemented as independent embodiments, but are not limited thereto.

[0283] In some embodiments, steps S2101 to S2110 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0284] In some embodiments, the execution order of steps S2101 to S2110 is not limited.

[0285] In the above embodiments, the accuracy of path loss estimation is improved, the transmission performance of uplink signals is improved, and the availability of flexible spectrum is improved.

[0286] Figure 3A This is a flowchart illustrating a communication method according to an embodiment of this disclosure. Figure 3A As shown, this disclosure relates to a communication method, which can be executed by terminal 101. The method includes:

[0287] Step S3101: Determine the reference resource.

[0288] In some embodiments, optional implementations of step S3101 can be found in [reference needed]. Figure 2 Optional implementation methods of step S2103, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0289] Step S3102: Determine the resources for the path loss signal.

[0290] In some embodiments, optional implementations of step S3102 can be found in [reference needed]. Figure 2 Optional implementation methods of step S2106, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0291] Step S3103: Obtain the road loss signal.

[0292] In some embodiments, optional implementations of step S3103 can be found in [reference needed]. Figure 2 Optional implementation methods of step S2107, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0293] In some embodiments, terminal 101 receives a path loss signal sent by network device 101, but is not limited thereto. Terminal 101 may also receive a path loss signal sent by other entities, such as relay devices or other devices. In this case, step S3103 can be omitted.

[0294] In some embodiments, terminal 101 acquires the path loss signal specified by the protocol, in which case step S3103 is omitted.

[0295] In some embodiments, the terminal 101 obtains the path loss signal from the upper layer(s), in which case step S3103 is omitted.

[0296] In some embodiments, the terminal 101 processes the signal to obtain the path loss signal, in which step S3102 is omitted.

[0297] In some embodiments, the terminal 101 autonomously implements the function indicated by the road loss signal, or the above function is the default or default, in which case step S3103 is omitted.

[0298] In some embodiments, steps S3101 to S3103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0299] In some embodiments, the execution order of steps S3101 to S3103 is not limited.

[0300] In the above embodiments, the accuracy of path loss estimation is improved, the transmission performance of uplink signals is improved, and the availability of flexible spectrum is improved.

[0301] Figure 3B This is a flowchart illustrating a communication method according to an embodiment of this disclosure. Figure 3B As shown, this disclosure relates to a communication method, which can be executed by a network device 102. The method includes:

[0302] Step S3201: Determine the reference resource.

[0303] In some embodiments, optional implementations of step S3201 can be found in [reference needed]. Figure 2 Optional implementation methods of step S2101, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0304] Step S3202: Determine the resources for the path loss signal.

[0305] In some embodiments, optional implementations of step S3202 can be found in [reference needed]. Figure 2 Optional implementation methods of step S2104, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0306] Step S3203: Send a path loss signal.

[0307] In some embodiments, network device 102 sends the path loss signal to terminal 101.

[0308] In some embodiments, terminal 101 receives the path loss signal.

[0309] In some embodiments, optional implementations of step S3203 can be found in [reference needed]. Figure 2 Optional implementation methods of step S2107, and Figure 2 Other related parts in the embodiments involved will not be described in detail here.

[0310] In some embodiments, steps S3201 to S3203 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0311] In some embodiments, the execution order of steps S3201 to S3203 is not limited.

[0312] In the above embodiments, the accuracy of path loss estimation is improved, the transmission performance of uplink signals is improved, and the availability of flexible spectrum is improved.

[0313] The above process is further illustrated with examples below.

[0314] In this embodiment of the disclosure, the terminal determines a path loss signal, the resources of which are determined based on reference resources, and the reference resources are determined based on a first signaling and / or a predefined method.

[0315] Terminal side:

[0316] The terminal determines the resources used for the path loss signal index, wherein the resources for the path loss signal are determined based on reference resources, and the reference resources are determined based on a predefined method and / or a first signaling:

[0317] Method 1: The terminal determines the path loss signal index, the resource of the path loss signal is determined based on reference resources, and the reference resources are determined based on the first signaling.

[0318] The reference resources include one or more of the following:

[0319] Band; for example, the band is a band that has a pair relationship with the band where the uplink transmission is located.

[0320] Carrier; for example, the band where the carrier is located has a pair relationship with the band where the uplink transmission is located;

[0321] BWP; for example, the band where the BWP is located has a pair relationship with the band where the uplink transmission is located;

[0322] Specific frequency range;

[0323] residential community;

[0324] Frequency domain resources that serve as reference points for resources; for example, the frequency domain locations of CRB#0 and / or point A.

[0325] Method 1-1: The terminal, based on the second signaling and reference resources, determines the resources of the path loss signal associated with the path loss signal index. The resources of the path loss signal are determined based on one or more of the following:

[0326] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0327] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0328] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0329] The bandwidth of the path loss signal;

[0330] The transmission power of the path loss signal;

[0331] The time-domain location of the path loss signal;

[0332] The frequency band identifier where the path loss signal is located;

[0333] The carrier identifier where the path loss signal is located;

[0334] The cell identifier where the road loss signal is located;

[0335] The bandwidth BWP identifier where the path loss signal is located;

[0336] Index of path loss signals;

[0337] The offset of the path loss signal resource relative to the reference resource.

[0338] In methods 1-2, the terminal determines the resources of the path loss signal associated with the path loss signal index based on the second signaling. The reference resources are determined based on a predefined method. For example, the reference resources are determined based on the frequency domain resource range corresponding to the cell. The frequency domain resource range corresponding to the cell can be one or more of the following:

[0339] Carrier; BWP; Band; Community.

[0340] The terminal determines reference resources based on the frequency domain resource range corresponding to the cell, and then determines the resources for the path loss signal. The resources for the path loss signal are determined based on one or more of the following:

[0341] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0342] The end position of the path loss signal; exemplarily, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; exemplarily, the end position is determined based on an absolute frequency domain resource such as ARFCN; the center frequency position of the path loss signal; exemplarily, the center frequency position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; exemplarily, the center frequency position is determined based on an absolute frequency domain resource such as ARFCN;

[0343] The bandwidth of the path loss signal;

[0344] The transmission power of the path loss signal;

[0345] The time-domain location of the path loss signal;

[0346] The offset of the path loss signal resource relative to the reference resource.

[0347] Based on the above reference resources, the terminal offset frequency domain offset receives the corresponding path loss signal, and the frequency domain offset is determined based on the first signaling and / or a predefined method:

[0348] For example, the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0349] Method 2: The terminal determines the path loss signal index, and the resources of the path loss signal are determined based on reference resources, which are determined based on a predefined method.

[0350] The terminal determines the reference resource based on a predefined method, wherein the reference resource is:

[0351] Downlink frequency domain resources with the same resource index as uplink frequency domain resources;

[0352] Downlink frequency domain resources that are paired with uplink frequency domain resources;

[0353] Downlink frequency domain resources with the same resource range as uplink frequency domain resources.

[0354] Among them, frequency domain resources can be one or more of frequency band, carrier, and BWP.

[0355] Method 2-1: The terminal determines the resources of the road loss signal associated with the road loss signal index based on the second signaling. The resources of the road loss signal are determined based on one or more of the following:

[0356] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0357] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0358] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0359] The bandwidth of the path loss signal;

[0360] The transmission power of the path loss signal;

[0361] The time-domain location of the path loss signal;

[0362] The frequency band identifier where the path loss signal is located;

[0363] The carrier identifier where the path loss signal is located;

[0364] The cell identifier where the road loss signal is located;

[0365] The bandwidth BWP identifier where the path loss signal is located;

[0366] Index of path loss signals;

[0367] The offset of the path loss signal resource relative to the reference resource.

[0368] Method 2-2: The terminal determines the resources of the path loss signal associated with the path loss signal index based on the second signaling. The reference resources are determined based on a predefined method. For example, the reference resources are determined based on the frequency domain resource range corresponding to the cell. The frequency domain resource range corresponding to the cell can be one or more of the following:

[0369] Carrier; BWP; Band; Community.

[0370] The terminal determines reference resources based on the frequency domain resource range corresponding to the cell, and the reference resources are determined based on one or more of the following:

[0371] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0372] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0373] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0374] The bandwidth of the path loss signal;

[0375] The transmission power of the path loss signal;

[0376] The time-domain location of the path loss signal;

[0377] The offset of the path loss signal resource relative to the reference resource.

[0378] Based on the above reference resources, the terminal offset frequency domain offset receives the corresponding path loss signal, and the frequency domain offset is determined based on the first signaling and / or a predefined method:

[0379] For example, the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0380] Network equipment side (i.e., base station side):

[0381] The base station sends a second signaling instruction indicating the path loss signal index, wherein the resources of the path loss signal are determined based on reference resources, and the reference resources are determined based on the first signaling instruction and / or a predefined method:

[0382] Method 1: The base station sends a second signaling instruction indicating the path loss signal index, wherein the resources of the path loss signal are determined based on reference resources.

[0383] The reference resources include one or more of the following:

[0384] Band; for example, the band is a band that has a pair relationship with the band where the uplink transmission is located.

[0385] Carrier; for example, the band where the carrier is located has a pair relationship with the band where the uplink transmission is located;

[0386] BWP; for example, the band where the BWP is located has a pair relationship with the band where the uplink transmission is located;

[0387] Specific frequency range;

[0388] residential community;

[0389] Frequency domain resources that serve as reference points for resources; for example, the frequency domain locations of CRB#0 and / or point A.

[0390] Method 1-1: The base station sends a second signaling instruction indicating the resources of the path loss signal associated with the path loss signal index, wherein the resources of the path loss signal are determined based on one or more of the following:

[0391] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0392] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0393] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0394] The bandwidth of the path loss signal;

[0395] The transmission power of the path loss signal;

[0396] The time-domain location of the path loss signal;

[0397] The frequency band identifier where the path loss signal is located;

[0398] The carrier identifier where the path loss signal is located;

[0399] The cell identifier where the road loss signal is located;

[0400] The bandwidth BWP identifier where the path loss signal is located;

[0401] Index of path loss signals;

[0402] The offset of the path loss signal resource relative to the reference resource.

[0403] In methods 1-2, the base station sends a second signaling instruction indicating the resources of the path loss signal associated with the path loss signal index. The reference resources are determined based on the frequency domain resource range corresponding to the cell. For example, the frequency domain resource range corresponding to the cell can be one or more of the following:

[0404] Carrier; BWP; Band; Community.

[0405] The terminal determines reference resources based on the frequency domain resource range corresponding to the cell, and then determines the resources for the path loss signal. The resources for the path loss signal are determined based on one or more of the following:

[0406] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0407] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0408] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0409] The bandwidth of the path loss signal;

[0410] The transmission power of the path loss signal;

[0411] The time-domain location of the path loss signal;

[0412] The offset of the path loss signal resource relative to the reference resource.

[0413] Based on the above reference resources, the terminal offset frequency domain offset receives the corresponding path loss signal, and the frequency domain offset is determined based on the first signaling and / or a predefined method:

[0414] For example, the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0415] Method 2: The base station sends a second signaling instruction indicating the path loss signal index, wherein the resources of the path loss signal are determined based on reference resources, and the reference resources are determined based on a predefined method.

[0416] The base station determines the reference resource based on a predefined method, and the reference resource is:

[0417] Downlink frequency domain resources with the same resource index as uplink frequency domain resources;

[0418] Downlink frequency domain resources that are paired with uplink frequency domain resources;

[0419] Downlink frequency domain resources with the same resource range as uplink frequency domain resources.

[0420] Among them, frequency domain resources can be one or more of frequency band, carrier, and BWP.

[0421] Method 2-1: The base station sends a second signaling instruction indicating the resources of the path loss signal associated with the path loss signal index, wherein the resources of the path loss signal are determined based on one or more of the following:

[0422] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0423] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0424] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0425] The bandwidth of the path loss signal;

[0426] The transmission power of the path loss signal;

[0427] The time-domain location of the path loss signal;

[0428] The frequency band identifier where the path loss signal is located;

[0429] The carrier identifier where the path loss signal is located;

[0430] The cell identifier where the road loss signal is located;

[0431] The bandwidth BWP identifier where the path loss signal is located;

[0432] Index of path loss signals;

[0433] The offset of the path loss signal resource relative to the reference resource.

[0434] Method 2-2: The base station sends a second signaling instruction to indicate the resources of the path loss signal associated with the path loss signal index. The reference resources are determined based on a predefined method. For example, the reference resources are determined based on the frequency domain resource range corresponding to the cell. The frequency domain resource range corresponding to the cell can be one or more of the following:

[0435] Carrier; BWP; Band; Community.

[0436] The terminal determines reference resources based on the frequency domain resource range corresponding to the cell, and the reference resources are determined based on one or more of the following:

[0437] The starting position of the path loss signal; for example, the starting position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the starting position is determined based on an absolute frequency domain resource such as ARFCN;

[0438] The end position of the path loss signal; for example, the end position is determined based on the frequency domain position of a reference resource such as CRB#0 and / or point A; for example, the end position is determined based on an absolute frequency domain resource such as ARFCN;

[0439] The center frequency location of the path loss signal; for example, the center frequency location is determined based on the frequency domain location of a reference resource such as CRB#0 and / or point A; for example, the center frequency location is determined based on an absolute frequency domain resource such as ARFCN;

[0440] The bandwidth of the path loss signal;

[0441] The transmission power of the path loss signal;

[0442] The time-domain location of the path loss signal;

[0443] The offset of the path loss signal resource relative to the reference resource.

[0444] Based on the above reference resources, the terminal offset frequency domain offset receives the corresponding path loss signal, and the frequency domain offset is determined based on the first signaling and / or a predefined method:

[0445] For example, the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

[0446] In this embodiment, for scenarios where the difference between the path loss calculated based on the path loss signal obtained within the downlink frequency domain of the cell and the path loss corresponding to the uplink transmission is too large, a path loss signal outside the downlink frequency domain of the cell is defined to obtain the corresponding path loss, thereby improving the accuracy of path loss estimation and enhancing the performance of uplink transmission. This solution can be applied to flexible spectrum scenarios, aggregated cell scenarios, and other scenarios with large differences between uplink and downlink path losses; this disclosure does not impose any limitations on these applications.

[0447] To determine the uplink signal transmission power of a specific cell, the terminal calculates the corresponding path loss based on the downlink path loss signal. The resources for the downlink path loss signal are determined based on reference resources.

[0448] Example 1, one possible implementation: the terminal determines the reference resource based on a first signaling, the reference resource including one or more of the following:

[0449] Band; for example, the band is a band that has a pair relationship with the band where the uplink transmission is located;

[0450] Carrier; for example, the band where the carrier is located has a pair relationship with the band where the uplink transmission is located;

[0451] BWP; for example, the band where the BWP is located has a pair relationship with the band where the uplink transmission is located;

[0452] Specific frequency range;

[0453] residential community;

[0454] Frequency domain resources that serve as reference points for resources; for example, the frequency domain locations of CRB#0 and / or point A.

[0455] Example 1-1, one possible implementation, wherein the path loss signal is an SSB, the terminal receives a second signaling and / or determines the SSB index based on a predefined method, and the resources of the SSB are determined based on one or more of the following:

[0456] The starting position of the SSB; for example, the terminal determines the starting position of the SSB based on the ARFCN; for example, the terminal determines the starting position of the SSB based on the frequency domain position of reference resources such as CRB#0 and / or point A;

[0457] The end position of the SSB; for example, the terminal determines the end position of the SSB based on the ARFCN; for example, the terminal determines the end position of the SSB based on the frequency domain position of reference resources such as CRB#0 and / or point A;

[0458] The center frequency location of the SSB; for example, the terminal determines the center frequency location of the SSB based on the ARFCN; for example, the terminal determines the center frequency location of the SSB based on the frequency domain location of reference resources such as CRB#0 and / or point A;

[0459] SSB's SCS;

[0460] SSB transmission cycle;

[0461] SSB index transmitted within an SSB burst; for example, the terminal determines the transmitted SSB index based on indication signaling such as ssb-PositionInBurst.

[0462] The transmit power of the SSB; for example, the transmit power is the SSS transmit power, indicated by indication signaling such as ss-PBCH-BlockPower.

[0463] For example, the terminal determines the transmission resources of one or more of the aforementioned SSBs based on the second signaling. The second signaling may be an SIB, such as SIB1, or at least one of RRC signaling, MAC CE, or DCI.

[0464] When the terminal does not receive the path loss signal index configured by the network device, the terminal determines the SSB based on its own implementation, for example, determining the SSB that satisfies the RSRP of a first value. The first value is determined based on third signaling and / or a predefined method.

[0465] When the terminal does not receive the second signaling for the path loss signal, the terminal can calculate the path loss based on the downlink path loss signal of the cell.

[0466] For example, the SSB used to calculate path loss is a non-cell-defining synchronization signal block (NCD-SSB). It can also be a cell-defining synchronization signal block (CD-SSB), and the terminal does not impose any restrictions on this.

[0467] In one possible implementation, the path loss signal is NZP CSI-RS, and the terminal receives a second signaling to determine the NZP CSI-RS, which is determined based on one or more of the following:

[0468] CSI-RS Index;

[0469] The time domain location of CSI-RS, including period, transmission time unit offset, etc.

[0470] The transmit power of CSI-RS; for example, the transmit power is determined based on the SSS transmit power (e.g., indication signaling ss-PBCH-BlockPower) and the offset of CSIRS relative to the SSS transmit power (e.g., indication signaling powerControlOffsetSS);

[0471] The starting position, ending position, and center frequency position of CSI-RS; for example, the terminal determines at least one of the starting position, ending position, and center frequency position based on the lowest position of the reference resource as the reference position, or the terminal determines at least one of the starting position, ending position, and center frequency position based on CRB#0 and / or PointA;

[0472] CSI-RS bandwidth;

[0473] The corresponding beam of CSI-RS;

[0474] Subcarrier Spacing (SCS) of CSI-RS;

[0475] The number of ports corresponding to CSI-RS;

[0476] CSI-RS transmission pattern;

[0477] Reference resources for CSI-RS, such as the frequency domain location of CRB#0 and / or point A.

[0478] For example, the terminal determines one or more of the aforementioned NZP CSI-RS transmission information based on the second signaling. The second signaling may be based on at least one of RRC signaling, SIB, MAC CE, and DCI.

[0479] When the terminal does not receive the second signaling for the path loss signal, the terminal determines the CSI-RS based on the implementation, for example, determining the CSI-RS that meets the RSRP threshold. The threshold is determined based on signaling configuration and / or a predefined method.

[0480] When the terminal does not receive the second signaling for the path loss signal, the terminal can calculate the path loss based on the downlink path loss signal of the cell.

[0481] Corresponding to the path loss signal, the terminal calculates the corresponding path loss based on the following formula 2:

[0482] PL b,f,c (q d ) = referenceSignalPower - higher layer filtered RSRP Formula 2

[0483] In the absence of a periodic NZP CSI-RS configured for path loss calculation, referenceSignalPower is determined based on the aforementioned SSB transmission power, for example, based on the indication signaling ss-PBCH-BlockPower. Otherwise, if a periodic NZP CSI-RS is configured for path loss calculation, the terminal determines the transmission power based on the aforementioned NZP CSI-RS, for example, based on the indication signaling ss-PBCH-BlockPower and / or powerControlOffsetSS. The higherlayer filtered RSRP is calculated based on the configured filter and the path loss signal.

[0484] For example, the CSI-RS used to calculate road loss is a periodic NZP CSI-RS.

[0485] Examples 1-2 illustrate one possible implementation: the terminal determines the resources for receiving path loss signals based on the path loss signal and frequency domain offset configured within its cell. Specific implementation details are as follows:

[0486] Step 1: The terminal receives the second signaling and determines the path loss signal index. The path loss signal index corresponds to the path loss signal configured in the cell where the terminal is located, such as at least one of SSB, CSI-RS, PDCCH, PDSCH, PBCH, PSS, and SSS. The path loss signal is configured based on the frequency domain resources corresponding to the cell where the terminal is located. The frequency domain resources corresponding to the cell can be frequency bands or carriers, or BWPs. This disclosure does not limit this.

[0487] Step 2: Based on step 1, the terminal determines the frequency domain position of the path loss signal as f0. For example, the frequency domain position can be the lowest frequency domain position, the highest frequency domain position, or the center frequency domain position of the path loss signal transmission. This invention does not limit this.

[0488] Step 3: Determine the frequency domain offset Δ based on a predefined method and / or the first signaling. The frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell. The corresponding frequency domain resource of the cell can be the lowest frequency domain position, the highest frequency domain position, or the center frequency domain position in the frequency domain resource range of the cell. This invention does not limit this.

[0489] Step 4: The terminal transmits the path loss signal based on the frequency domain position f of the path loss signal. The frequency domain position can be the lowest frequency position, the highest frequency position, or the center frequency position of the path loss signal resource; this invention does not impose any restrictions on this. f = f0 - Δ.

[0490] Wherein, if the frequency domain resources corresponding to the cell are less than the frequency domain position of the reference resource, Δ<0; if the frequency domain resources corresponding to the cell are greater than the frequency domain position of the reference resource, Δ>0;

[0491] Alternatively, f = f0 + Δ, where if the frequency domain resources corresponding to the cell are greater than the frequency domain position of the reference resource, Δ < 0; if the frequency domain resources corresponding to the cell are greater than the frequency domain position of the reference resource, Δ > 0.

[0492] Example 2, under the condition that the terminal determines the reference resource of the path loss signal based on a predefined method, is a possible implementation where the reference resource is a DL band that has a pair relationship with the UL band, such as a DL band that belongs to the same band number (e.g., n8).

[0493] In one possible implementation, the reference resource is the same as the UL frequency domain range. The UL frequency domain range can be the UL band frequency domain range, the UL frequency domain range of the cell where the uplink transmission is located, or the frequency domain range of the BWP where the uplink transmission is located.

[0494] In one possible implementation, the band where the reference resource is located has a pair relationship with the band where the uplink transmission is located. The reference resource can be a carrier, a BWP, or other frequency domain resources. This invention does not limit the scope of the invention.

[0495] Within the aforementioned reference resources, the terminal determines the downlink path loss signal-related information based on the indication signaling. The specific determination method is the same as in the above embodiments and will not be repeated here.

[0496] This disclosure embodiment defines reference resources, enabling the terminal to perform path loss estimation based on the downlink path loss signal within the reference resource range. The path loss estimation is used to determine the transmission power corresponding to the uplink transmission, which can effectively improve uplink transmission performance.

[0497] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0498] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0499] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be hardware circuits designed for artificial intelligence, which can be understood as ASICs, such as Neural Network Processing Units (NPUs), Tensor Processing Units (TPUs), and Deep Learning Processing Units (DPUs).

[0500] Figure 4A This is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. Terminal 4100 is used to execute any of the above methods. In some embodiments, such as... Figure 4A As shown, terminal 4100 may include: processing module 4101 and transceiver module 4102.

[0501] In some embodiments, the processing module 4101 is used to determine reference resources; based on the reference resources, to determine the resources of the path loss signal for calculating path loss, wherein the path loss is used by the terminal to determine the transmission power of the uplink signal.

[0502] In some embodiments, the transceiver module 4102 is configured to receive the path loss signal sent by the network device on the path loss signal resource.

[0503] Optionally, the processing module 4101 is used to execute at least one of the other steps executed by the terminal 4100 in any of the above methods (e.g., steps S2103, S2106, S2108, S2109, but not limited thereto), which will not be elaborated here.

[0504] Optionally, the transceiver module 4102 is used to perform at least one of the communication steps such as receiving and / or sending performed by the terminal 4100 in any of the above methods (e.g., steps S2102, S2105, S2107, S2110, but not limited thereto), which will not be elaborated here.

[0505] Figure 4B This is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. Network device 4200 is used to perform any of the above methods. In some embodiments, such as... Figure 4B As shown, the network device 4200 may include: a processing module 4201 and a transceiver module 4202.

[0506] In some embodiments, the processing module 4201 is used to determine reference resources; based on the reference resources, to determine resources for a path loss signal used to calculate path loss, wherein the path loss is used by the terminal to determine the transmission power of the uplink signal.

[0507] In some embodiments, the transceiver module 4202 is used to send the road loss signal to the terminal on the road loss signal resource.

[0508] Optionally, the processing module 4201 is used to execute at least one of the other steps (such as step S2101, step S2104, but not limited thereto) executed by the network device 4200 in any of the above methods, which will not be described in detail here.

[0509] Optionally, the transceiver module 4202 is used to perform at least one of the communication steps such as receiving and / or sending performed by the network device 4200 in any of the above methods (e.g., steps S2102, S2105, S2107, S2110, but not limited thereto), which will not be elaborated here.

[0510] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0511] Alternatively, the transceiver module can be interchanged with the transceiver.

[0512] Figure 5AThis is a schematic diagram of the structure of the communication device 5100 proposed in this embodiment. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0513] like Figure 5A As shown, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0514] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2102, S2105, S2107, S2110, but not limited thereto), and the processor 5101 performs at least one of other steps (e.g., steps S2101, S2103, S2104, S2106, S2108, S2109, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0515] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5103 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5103 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5103 and can be used to receive data and / or instructions from the memory 5103 or other devices, and can be used to send data and / or instructions to the memory 5103 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5103 and send the data and / or instructions to the processor 5101.

[0516] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may vary. Figure 5A The limitations. The communication device may be a standalone device or part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (6) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0517] Figure 5B This is a schematic diagram of the structure of chip 5200 according to an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, please refer to... Figure 5B The diagram shown is a schematic representation of the structure of chip 5200, but it is not limited to this.

[0518] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0519] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0520] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2102, S2105, S2107, and S2110, but not limited thereto). The interface circuit 5202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 5202 performing data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S2101, S2103, S2104, S2106, S2108, and S2109, but not limited thereto).

[0521] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0522] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0523] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0524] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0525] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A communication method, characterized in that, The method is executed by a terminal, and the method includes: Identify reference resources; Based on the reference resources, resources for the path loss signal used to calculate path loss are determined, and the path loss is used by the terminal to determine the transmission power of the uplink signal; On the resource of the path loss signal, the path loss signal is received from the network device.

2. The method according to claim 1, characterized in that, The reference resource is at least one of the following: frequency band; carrier wave; Partial bandwidth BWP; Frequency domain resources between the first and second frequency points; residential community; The reference point for the resources of the road loss signal.

3. The method according to claim 1 or 2, characterized in that, The determination of the reference resource includes at least one of the following: The terminal receives a first signaling sent by the network device, the first signaling being used by the terminal to determine the reference resource; The reference resource is determined based on a predefined method.

4. The method according to claim 3, characterized in that, The first signaling is used by the terminal to determine the reference resource, including at least one of the following: Based on the resources indicated by the first signaling, the reference resource is determined; The reference resource is determined based on the resource index indicated by the first signaling. The reference resource is determined based on the frequency domain offset indicated by the first signaling; wherein the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

5. The method according to claim 3, characterized in that, The determination of the reference resource based on a predefined method includes at least one of the following: The downlink frequency domain resource with the same resource index as the uplink frequency domain resource is identified as the reference resource; The downlink frequency domain resources with the same resource range as the uplink frequency domain resources are identified as the reference resources; The downlink frequency domain resources that have a pairing relationship with the uplink frequency domain resources are determined as the reference resources; The reference resource is determined based on the frequency domain offset; wherein, the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell; The uplink frequency domain resources are frequency domain resources used to transmit the uplink signals.

6. The method according to any one of claims 1-5, characterized in that, The resource for determining the path loss signal for calculating path loss based on the reference resource includes at least one of the following: The terminal receives a second signaling sent by the network device, the second signaling being used by the terminal to perform at least one of the following: Among the reference resources, determine the resources for the path loss signal; Using the reference resource as a reference point, determine the resource of the path loss signal; Based on a predefined method, the resources for the path loss signal are determined from the reference resources; Based on a predefined method, the resources of the path loss signal are determined using the reference resource as a reference point.

7. The method according to claim 6, characterized in that, The second signaling is used to instruct at least one of the following: The starting position of the path loss signal; The end position of the road loss signal; The location of the center frequency point of the path loss signal; The bandwidth of the path loss signal; The transmission power of the path loss signal; The time-domain location of the road loss signal; The frequency band identifier where the path loss signal is located; The carrier identifier where the path loss signal is located; The cell identifier where the road loss signal is located; The bandwidth BWP identifier where the path loss signal is located; Index of path loss signals; The offset of the path loss signal resource relative to the reference resource.

8. The method according to claim 6 or 7, characterized in that, The second signaling is at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) signaling; Media Access Control Unit (MAC CE); Downlink Control Information (DCI).

9. The method according to any one of claims 6-8, characterized in that, The method further includes: If the second signaling does not indicate a path loss signal index, a downlink signal with a signal quality greater than or equal to a threshold is identified as the path loss signal.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: The path loss is determined based on the transmission power of the path loss signal and the reception power of the path loss signal after high-layer filtering.

11. A communication method, characterized in that, The method is performed by a network device, and the method includes: Identify reference resources; Based on the reference resources, resources for the path loss signal used to calculate path loss are determined, and the path loss is used by the terminal to determine the transmission power of the uplink signal; On the resource of the road loss signal, the road loss signal is sent to the terminal.

12. The method according to claim 11, characterized in that, The reference resource is at least one of the following: frequency band; carrier wave; Partial bandwidth BWP; Frequency domain resources between the first and second frequency points; residential community; The reference point for the resources of the road loss signal.

13. The method according to claim 11 or 12, characterized in that, The determination of the reference resource includes: The reference resource is determined based on a predefined method.

14. The method according to claim 13, characterized in that, The determination of the reference resource based on a predefined method includes at least one of the following: The downlink frequency domain resource with the same resource index as the uplink frequency domain resource is identified as the reference resource; The downlink frequency domain resources with the same resource range as the uplink frequency domain resources are identified as the reference resources; The downlink frequency domain resources that have a pairing relationship with the uplink frequency domain resources are determined as the reference resources; The reference resource is determined based on the frequency domain offset; wherein, the frequency domain offset is the offset of the reference resource relative to the corresponding frequency domain resource of the cell; The uplink frequency domain resources are frequency domain resources used to transmit the uplink signals.

15. The method according to any one of claims 11 or 12, characterized in that, The method further includes: A first signaling message is sent to the terminal, the first signaling message being used by the terminal to determine the reference resource.

16. The method according to claim 15, characterized in that, The first signaling is used to instruct at least one of the following: resource; Resource index; Frequency domain offset, which is the offset of the reference resource relative to the corresponding frequency domain resource of the cell.

17. The method according to any one of claims 11-16, characterized in that, The method further includes at least one of the following: Based on a predefined method, the resources for the path loss signal are determined from the reference resources; Based on a predefined method, the resources of the path loss signal are determined using the reference resource as a reference point.

18. The method according to any one of claims 11-16, characterized in that, The method further includes: Send a second signaling message to the terminal; wherein the second signaling message is used by the terminal to perform at least one of the following: Among the reference resources, determine the resources for the path loss signal; Using the reference resource as a reference point, the resource of the path loss signal is determined.

19. The method according to claim 18, characterized in that, The second signaling is used to instruct at least one of the following: The starting position of the path loss signal; The end position of the road loss signal; The location of the center frequency point of the path loss signal; The bandwidth of the path loss signal; The transmission power of the path loss signal; The time-domain location of the road loss signal; The frequency band identifier where the path loss signal is located; The carrier identifier where the path loss signal is located; The cell identifier where the road loss signal is located; The bandwidth BWP identifier where the path loss signal is located; Index of path loss signals; The offset of the path loss signal resource relative to the reference resource.

20. The method according to claim 18 or 19, characterized in that, The second signaling is at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) signaling; Media Access Control Unit (MAC CE); Downlink Control Information (DCI).

21. A terminal, characterized in that, The terminal includes: The processing module is configured to determine the reference resource; The processing module is further configured to determine, based on the reference resources, the resources of the path loss signal used to calculate the path loss, wherein the path loss is used by the terminal to determine the transmission power of the uplink signal; The transceiver module is configured to receive the path loss signal sent by the network device on the resource of the path loss signal.

22. A network device, characterized in that, The network device includes: The processing module is configured to determine the reference resource; The processing module is further configured to determine, based on the reference resources, the resources of the path loss signal used to calculate the path loss, wherein the path loss is used by the terminal to determine the transmission power of the uplink signal; The transceiver module is configured to send the path loss signal to the terminal on the resource of the path loss signal.

23. A terminal, characterized in that, include: One or more processors; The processor is used to execute the communication method according to any one of claims 1-10.

24. A network device, characterized in that, include: One or more processors; The processor is used to execute the communication method according to any one of claims 11-20.

25. A communication system, characterized in that, include: A terminal configured to perform the communication method according to any one of claims 1-10; A network device configured to perform the communication method according to any one of claims 11-20.

26. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1-10 or 11-20.

27. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program is used to implement the communication method according to any one of claims 1-10 or 11-20.

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