WO2024045191A1 - Wireless communication method, terminal device, and network device - Google Patents

Abstract

A wireless communication method, a terminal device, and a network device. The method comprises: a terminal device sends first indication information, the first indication information being used for indicating a first sounding reference signal (SRS) configuration, wherein the first SRS configuration is an SRS configuration used by the terminal device in a first area.

Description

Wireless communication method, terminal equipment and network equipment Technical field

Embodiments of the present application relate to the field of communications, and specifically relate to a wireless communication method, terminal equipment, and network equipment.

Background technique

In some scenarios, the Radio Resource Control (RRC) inactive state (RRC_INACTIVE) is introduced. The purpose is to reduce the terminal power consumption and allow the terminal to enter the connected state faster when necessary.

Multiple base stations can position the terminal by measuring the Sounding Reference Signal (SRS) sent by the terminal. When the terminal switches to the coverage of another cell, if the terminal needs to continue positioning services, the current cell will reallocate a new SRS to the terminal. For terminals in the RRC_INACTIVE state, when entering the coverage of a new cell, waiting for the network device to reissue the new SRS configuration will increase the signaling overhead of the network device, and the terminal receives signaling carrying the new SRS configuration. And applying new SRS configuration will also increase the power consumption of the terminal.

Contents of the invention

This application provides a wireless communication method, terminal equipment and network equipment, which is beneficial to reducing the signaling overhead of network equipment.

In a first aspect, a wireless communication method is provided, including: a terminal device sending first indication information, the first indication information being used to indicate a first sounding reference signal SRS configuration, wherein the first SRS configuration is the The SRS configuration used by the terminal equipment in the first area.

In a second aspect, a wireless communication method is provided, including: a first network device obtains a first sounding reference signal SRS configuration, wherein the first SRS configuration is an SRS configuration used by a terminal device in a first area.

A third aspect provides a terminal device for executing the method in the above first aspect or its respective implementations.

Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect or its respective implementations.

A fourth aspect provides a network device for performing the method in the above second aspect or its respective implementations.

Specifically, the network device includes a functional module for executing the method in the above second aspect or its respective implementations.

In the fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory to execute the method in the above first aspect or its implementations.

A sixth aspect provides a network device, including a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, and execute the method in the above second aspect or its respective implementations.

A seventh aspect provides a chip for implementing any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or implementations thereof. method.

An eighth aspect provides a computer-readable storage medium for storing a computer program, the computer program causing the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation thereof.

In a ninth aspect, a computer program product is provided, including computer program instructions, which cause a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation thereof.

A tenth aspect provides a computer program that, when run on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation thereof.

Through the above technical solution, when the terminal device enters a new area, the terminal device can report to the network device the SRS configuration used by the terminal device in the previous area. Further, the network device can determine whether the SRS configuration is consistent with the one in the new area. The SRS currently used by the terminal device satisfies orthogonality to determine whether to update the SRS configuration of the terminal device, which is beneficial to reducing the signaling overhead of the network device.

Description of drawings

Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.

Figure 2 is a schematic diagram of TDOA positioning provided by an embodiment of the present application.

Figure 3 is a schematic flowchart of a UE entering the radio access network to notify area updates.

Figure 4 is a schematic interaction diagram of a terminal device performing a positioning task.

Figure 5 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a wireless communication method according to another embodiment of the present application.

Figure 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Figure 8 is a schematic block diagram of a network device according to an embodiment of the present application.

Figure 9 is a schematic block diagram of a communication device provided by another embodiment of the present application.

Figure 10 is a schematic block diagram of a chip provided by an embodiment of the present application.

Figure 11 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Regarding the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), wireless fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) deployment scenario. Internet scene.

Optionally, the communication system in the embodiment of the present application can be applied to the unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or the communication system in the embodiment of the present application can also be applied to the licensed spectrum, where, Licensed spectrum can also be considered as unshared spectrum.

The embodiments of this application describe various embodiments in combination with network equipment and terminal equipment. The terminal equipment may also be called user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.

The terminal device can be a station (STATION, ST) in the WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, or a personal digital assistant. (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or in the future Terminal equipment in the evolved Public Land Mobile Network (PLMN) network, etc.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites). superior).

In the embodiment of this application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, or an augmented reality (Augmented Reality, AR) terminal. Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly defined wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones. Use, such as various types of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the embodiment of this application, the network device may be a device used to communicate with mobile devices. The network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA. , or it can be a base station (NodeB, NB) in WCDMA, or an evolutionary base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network network equipment (gNB) or network equipment in the future evolved PLMN network or network equipment in the NTN network, etc.

As an example and not a limitation, in the embodiment of the present application, the network device may have mobile characteristics, for example, the network device may be a mobile device. Optionally, the network device can be a satellite or balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite ) satellite, etc. Optionally, the network device may also be a base station installed on land, water, etc.

In this embodiment of the present application, network equipment can provide services for a cell, and terminal equipment communicates with the network equipment through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell can be a network equipment ( For example, the cell corresponding to the base station) can belong to the macro base station or the base station corresponding to the small cell (Small cell). The small cell here can include: urban cell (Metro cell), micro cell (Micro cell), pico cell ( Pico cell), femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in Figure 1 . The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (also referred to as a communication terminal or terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within the coverage area.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.

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

It should be understood that in the embodiments of this application, devices with communication functions in the network/system may be called communication devices. Taking the communication system 100 shown in Figure 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be described again here. ; The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiments of this application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.

In the description of the embodiments of this application, the term "correspondence" can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.

In the embodiment of this application, "predefinition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application is specific to its The implementation method is not limited. For example, predefined can refer to what is defined in the protocol.

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

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the traditional uplink (UL) Time Difference of Arrival (TDOA) positioning technology will be described.

Traditional UL TDOA positioning requires time synchronization between the base stations participating in the positioning. When applying uplink positioning, the terminal sends an uplink sounding reference signal (SRS). Each base station needs to measure the SRS sent by the terminal to determine the signal distance difference from the terminal to different base stations. Based on multiple unrelated distance difference results Determine the intersection point of the hyperbola to obtain the positioning result. If the time between the two base stations is not synchronized, then there will be a value in the calculation result of the signal distance difference between the terminal and the two base stations, which is proportional to the degree of time synchronization between the two base stations, resulting in positioning Result bias. When performing downlink positioning (the terminal receives downlink positioning reference signals (PRS)), each base station also needs to send PRS under the premise of time synchronization, so that the distance difference estimated by the terminal when measuring PRS can truly reflect the actual situation . Figure 2 is a TDOA positioning diagram. Among them, d4-d1, d4-d3, d3-d2, and d2-d1 correspond to different hyperbolas, and the intersection point of the hyperbolas is the terminal position. It can be seen from the figure that at least two hyperbolas are needed, that is, three TRPs can realize the positioning of the terminal.

In some scenarios, the purpose of introducing the RRC_INACTIVE state is to reduce terminal power consumption and allow the terminal to enter the RRC connected (RRC_CONNECTED) state faster when necessary. The terminal only needs to perform UE-based mobility control (for example, PLMN selection (selection), cell reselection (cell reselection)) in the RRC_INACTIVE state, and only when the terminal leaves the fixed area (such as the radio identification area (RAN) Notification Area, RNA)), you need to update your area range information (RAN Notification area Update) to the network. In addition, the terminal can also apply Discontinuous Reception (DRX), which only needs to listen to the Physical Downlink Control Channel (PDCCH) for a limited time, receive paging (paging) and read system messages.

Figure 3 is a schematic flow chart of the UE updating the radio access network notification area. As shown in Figure 3, it mainly includes the following steps:

S110. When a radio access network notification area update (RNA Update, RNAU) is required, the UE recovers from the RRC_INACTIVE state and sends an RRC Connection Resume Request (RRC Connection Resume Request) message to the target base station (such as gNB). Among them, the RRC connection recovery request is used to provide the inactive radio network temporary identifier (Inactive Radio Network Temporary Identity, I-RNTI) assigned by the previous serving base station and the appropriate cause value, such as RAN notification area update.

S120, the target base station sends a Retrieve UE Context Request message to the source base station (previous serving base station).

S130, the source base station sends a Retrieve UE Context Response message to the target base station.

S140: The target base station switches the UE to the RRC_CONNECTED state, or switches the UE to the RRC_IDLE state, or switches the UE back to the RRC_INACTIVE state.

S150: To prevent the loss of downlink (DL) user data buffered in the source base station, the target base station provides the forwarding address to the source base station.

S160. The target base station sends a Path Switch Request message to the Access and Mobility Management Function (AMF).

S170. The AMF sends a Path Switch Request Response message to the target base station.

S180, the target base station keeps the UE in the RRC_INACTIVE state by sending an RR Release (RRC Release) message with a suspension indication.

S190: The target base station triggers the release of UE resources at the source base station.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the SRS configuration related to the present application will be described.

In practical applications, the SRS configurations of different terminals satisfy orthogonality in the time domain, frequency domain or code domain to achieve zero interference between terminals.

For example, in the time domain, the slot appearance periods of SRS of different terminals may be different, or the slot offsets may be different, or the symbols occupied in the same slot may also be different.

For another example, in the frequency domain, the SRS of different terminals can use different comb offsets (comb offset), that is, the SRS configuration of different terminals can alternately occupy different frequency positions on the same symbol, or frequency hopping can be used. Avoid collisions.

For another example, in the code domain, the SRS of different terminals can be modulated using different cyclic shifts of the Zadoff-Chu sequence, and the sequences corresponding to different cyclic shifts have the characteristics of low cross-correlation results, and then the requirements can be achieved in the code domain. Orthogonality.

One goal of wireless positioning is to support devices such as sensors to achieve low-power, high-precision positioning requirements. Specifically, this type of terminal may be equipped with two sets of wireless transmitting front-end devices, one for low-bandwidth uplink data transmission or downlink data reception, and the other for large-bandwidth (for example, 100MHz) positioning SRS transmission. In addition, in order to further reduce power overhead, it is necessary to reduce the number of times the terminal enters the connected state. Traditionally, when a terminal switches to the coverage of another cell, if the terminal needs to continue positioning services, the current cell will reallocate a new SRS to the terminal. Therefore, consider configuring a larger area range for the terminal device. Before the terminal device leaves the area, the terminal device can perform positioning tasks using the SRS configuration configured in the signaling previously received in the connected state. One implementation is shown in Figure 4. As shown in Figure 4, the following steps can be included:

S11, decide to release the UE in the connected state to the inactive state for positioning.

S12. Base station #1 sends an RRC release message to the UE. The RRC release message includes SRS configuration or positioning area (Positioning Area, PA) configuration.

Further, the UE sends SRS for positioning within the configured positioning area.

S13: The inactive UE is reselected from base station #1 to base station #2.

S14. The UE sends an RRC recovery request (MO signaling).

S15, base station #2 sends a Retrieve UE Context Request message to base station #1.

S16, base station #1 sends a Retrieve UE Context Response message to base station #2.

S17, base station #2 sends a path switch request (Path Switch Request) message to the AMF.

S18, AMF sends a Path Switch Request Response message to base station #2.

S19, base station #2 sends a UE context release (UE context Release) message to base station #1.

S20, base station #2 sends an RRC Resume message to the UE.

S21, the UE sends an RRC Resume Complete message to base station #2, where the RRC Resume Complete message includes a Lightweight Presentation Protocol (Lightweight Presentation Protocol, LPP) update request or cell update indication.

S22, base station #2 sends an uplink non-access stratum (Non-Access Stratum, NAS) transmission (UL NAS Transfer) message to the AMF.

S23, AMF sends an NL1 message to the user plane function (User Plane Function, UPF).

S24, UPF sends a positioning information request (Positioning Information Request) to AMF.

S25, AMF sends a positioning information response (Positioning Information Response) to UPF.

S26, base station #2 sends an RRC Release (RRC Release) message to the UE, where the RRC Release message includes SPS configuration or positioning area configuration.

S27, UPF sends a measurement request (Measurement Request) or measurement update (Measurement Update) to base station #1 and base station #2.

S28, base station #1 and base station #2 send measurement responses (Measurement Response) to UPF.

For RRC_INACTIVE terminals, when entering the coverage of a new cell, waiting for the network device to re-issue the new SRS configuration will increase the signaling overhead of the network device, and the terminal receives the signaling carrying the new SRS configuration and Applying the new SRS configuration will also increase the power consumption of the terminal.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application. The embodiments of this application include at least part of the following content.

Figure 5 is a schematic diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in Figure 5, the method 200 includes the following content:

S210: The terminal device sends first indication information, where the first indication information is used to indicate a first sounding reference signal SRS configuration, where the first SRS configuration is an SRS configuration used by the terminal device in the first area.

In some embodiments, the terminal device is in the RRC_INACTIVE state.

In some embodiments, the first area may include one or more cells, or other area division methods may be used, which is not limited in this application.

For example, the first area is a first cell, or the first area may include at least two cells.

In some embodiments, the first area may be the area where the terminal device was last positioned, or the positioning area it left, or the cell where the terminal device was last positioned, or the cell it left.

In some embodiments of this application, S210 may include:

The terminal device sends first indication information to the first network device.

In some embodiments, the area where the first network device is located belongs to the second area, or the cell served by the first network device belongs to the second area, or the coverage range of the first network device belongs to the second area.

That is, the terminal device enters the second area from the first area.

In some embodiments, the first region and the second region are different, for example, the first region and the second region are at least partially non-overlapping.

In some embodiments, the second area may include one or more cells, or other area division methods may be used, which is not limited in this application. For example, the second area is a second cell, or the second area may include at least two cells.

In some embodiments, the number of cells included in the first area and the second area may be the same, or may be different.

In some embodiments, the first network device is a network device reselected by the terminal device.

It should be understood that the first indication information is sent through any uplink signaling, including but not limited to RRC signaling, Media Access Control Control Element (MAC CE), etc.

As an example, the first indication information may be carried through at least one of the following RRC signaling:

Uplink signaling transfer (UL Information Transfer) message, RRC Resume Request message, RRC Resume Complete message.

In some embodiments, the first SRS configuration may refer to the SRS configuration used by the terminal device, or the last used SRS configuration or the most recently used SRS configuration.

In some embodiments, the first SRS configuration includes at least one of the following:

The sequence information of the SRS used by the terminal device in the first area, such as sequence ID;

The time domain resource information of the SRS used by the terminal equipment in the first area, such as cycle, time slot offset, symbols occupied in a time slot, etc.;

Frequency domain resource information of the SRS used by the terminal equipment in the first area, such as comb offset (Comb offset), etc.

In some embodiments, the first indication information is used to indicate index information of the first SRS configuration.

That is, the first indication information may not indicate specific configuration parameters included in the first SRS configuration, but only indicate index information of the first SRS configuration, which is beneficial to reducing signaling overhead of the terminal device.

Optionally, in this case, the first network device can obtain the specific configuration parameters included in the first SRS configuration from the second network device, where the second network device can be a network device in the first area, or provide the terminal with The device configures the network device configured by the first SRS.

In some embodiments, the area where the second network device is located belongs to the first area, or the cell served by the second network device belongs to the first area, or the coverage range of the second network device belongs to the first area.

In other embodiments, the first indication information may indicate specific configuration parameters included in the first SRS configuration. For example, the first indication information is used to indicate at least one of the following:

The sequence information of the SRS used by the terminal device in the first area, such as sequence ID;

The time domain resource information of the SRS used by the terminal equipment in the first area, such as cycle, time slot offset, symbols occupied in a time slot, etc.;

Frequency domain resource information of the SRS used by the terminal equipment in the first area, such as comb offset (Comb offset), etc.

In some embodiments of the present application, the method 200 further includes:

The terminal device determines whether to update the SRS configuration according to the first signaling, or determines the target SRS configuration to be used according to the first signaling.

In some embodiments, when the terminal device receives the first signaling and the first signaling does not carry the SRS configuration, it is determined not to update the SRS configuration, or in other words, continue to use the first SRS configuration to send SRS.

In other embodiments, when the terminal device receives the first signaling and the first signaling includes the second indication information, it is determined not to update the SRS configuration, or in other words, continue to use the first SRS configuration to send SRS, wherein, The second indication information is used to indicate not to update the SRS configuration.

Optionally, the second indication information may be a 1-bit indication bit, and setting the 1 bit to 1 indicates updating and setting it to 0 indicates not updating; or, setting the 1 bit to 0 indicates updating and setting it to 1 indicates not updating.

In some embodiments, in the case where the first signaling includes the updated SRS configuration (or in other words, the first signaling includes the SRS configuration), it is determined to update the SRS configuration, or in other words, the SRS is sent using the updated SRS configuration.

In some embodiments, the first signaling includes the updated SRS configuration including:

The first signaling includes the second SRS configuration, that is, the first signaling can carry the complete SRS configuration; or

The first signaling includes a changed configuration of the second SRS configuration relative to the first SRS configuration, that is, the first signaling may carry the changed configuration.

For example, when the SRS configuration needs to be updated, the first network device may carry the complete SRS configuration, such as SRS sequence information, SRS resource information, etc., in the first signaling. Alternatively, when the SRS configuration needs to be updated, the first network device may also include only the configuration that needs to be updated in the first signaling. For example, if the SRS sequence information does not need to be updated and only the time domain resource information of the SRS needs to be updated, then The first signaling only needs to carry the updated time domain resource information of the SRS, which is beneficial to reducing the signaling overhead of the network device.

It should be understood that the first signaling may refer to any downlink signaling. Examples include but are not limited to RRC signaling, MAC CE, etc.

As an example, the first signaling may include at least one of RRC signaling:

Downlink signaling transmission (DLInformationTransfer) message, RRC reconfiguration (RRC Reconfiguration) message, RRC recovery (RRC Resume) message.

In some embodiments of the present application, the network device may not send signaling to the terminal device when it determines not to update the SRS configuration of the terminal device. Correspondingly, the terminal device may also not receive the signaling from the first network device. In the case of the command, it is determined not to update the SRS configuration, or in other words, continue to use the first SRS configuration to send SRS.

In summary, in the embodiment of this application, when the terminal device enters a new area, the terminal device can report the SRS configuration used by the terminal device in the previous area to the network device. Furthermore, if the SRS configuration of the terminal device is not received from the network device, configuration, or when receiving signaling from the network device and the signaling does not carry the SRS configuration or receiving instructions from the network device not to update the SRS configuration, continue to use the SRS configuration used in the previous area to send SRS. , which is conducive to reducing the signaling overhead of network equipment, and at the same time, it can reduce the power consumption overhead of terminal equipment receiving SRS configuration and applying new SRS configuration.

The wireless communication method according to another embodiment of the present application is described in detail from the perspective of a terminal device above with reference to FIG. 5 , and the wireless communication method according to another embodiment of the present application is described in detail from the perspective of a network device with reference to FIG. 6 . It should be understood that the description on the network device side corresponds to the description on the terminal device side. Similar descriptions can be found above. To avoid duplication, they will not be described again here.

Figure 6 is a schematic diagram of another wireless communication method 300 according to an embodiment of the present application. As shown in Figure 6, the method 300 includes the following content:

S310. The first network device obtains the first sounding reference signal SRS configuration, where the first SRS configuration is the SRS configuration used by the terminal device in the first area.

In some embodiments, the terminal device is in the RRC_INACTIVE state.

In some embodiments, the first area may include one or more cells, or other area division methods may be used, which is not limited in this application. For example, the first area is a first cell, or the first area may include at least two cells.

In some embodiments, the first area may be the area where the terminal device was last positioned, or the area it left, or the cell where the terminal device was last positioned, or the cell it left.

In some embodiments, the area where the first network device is located belongs to the second area, or the cell served by the first network device belongs to the second area, or the coverage range of the first network device belongs to the second area. That is, the terminal device enters the second area from the first area.

In some embodiments, the first region and the second region are different, for example, the first region and the second region are at least partially non-overlapping.

In some embodiments, the second area may include one or more cells, or other area division methods may be used, which is not limited in this application. For example, the second area is a second cell, or the second area may include at least two cells.

In some embodiments, the number of cells included in the first area and the second area may be the same, or may be different.

In some embodiments, the first network device is a network device reselected by the terminal device.

In some embodiments, the first SRS configuration may refer to the SRS configuration used by the terminal device, or the last used SRS configuration or the most recently used SRS configuration.

In some embodiments, the first SRS configuration includes at least one of the following:

The sequence information of the SRS used by the terminal device in the first area, such as sequence ID;

The time domain resource information of the SRS used by the terminal equipment in the first area, such as cycle, time slot offset, symbols occupied in a time slot, etc.;

Frequency domain resource information of the SRS used by the terminal equipment in the first area, such as comb offset (Comb offset), etc.

In some embodiments of the present application, the first SRS configuration is obtained from the terminal device.

For example, the first network device may receive first indication information from the terminal device, where the first indication information is used to indicate the first SRS configuration.

In some embodiments, the first indication information is used to indicate index information of the first SRS configuration.

That is, the first indication information may not indicate specific configuration parameters included in the first SRS configuration, but only indicate index information of the first SRS configuration, which is beneficial to reducing signaling overhead of the terminal device.

Optionally, in this case, the first network device can obtain the specific configuration parameters included in the first SRS configuration from the second network device, where the second network device can be a network device in the first area, or provide the terminal with The device configures the network device configured by the first SRS.

In some embodiments, the area where the second network device is located belongs to the first area, or the cell served by the second network device belongs to the first area, or the coverage range of the second network device belongs to the first area.

In other embodiments, the first indication information may indicate specific configuration parameters included in the first SRS configuration. For example, the first indication information is used to indicate at least one of the following:

The sequence information of the SRS used by the terminal device in the first area, such as sequence ID;

The time domain resource information of the SRS used by the terminal equipment in the first area, such as cycle, time slot offset, symbols occupied in a time slot, etc.;

Frequency domain resource information of the SRS used by the terminal equipment in the first area, such as comb offset (Comb offset), etc.

In other embodiments of the present application, the first SRS configuration is obtained from a second network device, and the second network device is a network device in the first area, or the second network device is a network device for the The terminal device configures the network device configured with the first SRS.

For example, when the first network device receives the first indication information from the terminal device, and the first indication information is used to indicate the index information of the first SRS configuration, the first network device may obtain the first SRS configuration from the second network device. Specific configuration parameters included.

For another example, in the case where the terminal device requests a new SRS configuration from the network device, the first network device may obtain the SRS configuration used by the terminal device in the first area from the second network device.

In some embodiments of the present application, the method 300 further includes:

The first network device determines whether the first SRS configuration satisfies orthogonality with SRS configurations of other terminal devices in the second area.

In some embodiments, after learning the SRS configuration used by the terminal device, the first network device may determine that the SRS configuration is consistent with the SRS configuration being used (or in other words, applied or configured) by other terminal devices in the second area. Whether orthogonality is satisfied to determine whether to update the SRS configuration for the terminal device.

For example, if the first SRS configuration satisfies orthogonality with the SRS configurations being used by other terminal devices in the second area, the network device may determine not to update the SRS configuration of the terminal device; otherwise, determine that the SRS configuration of the terminal device needs to be updated. Optionally, when determining to update the SRS configuration of the terminal device, the network device can only update part of the SRS configuration of the terminal device, for example, only update the sequence information of the SRS, or only update the resource information of the SRS, etc., or it can also update the terminal. This application does not limit all SRS configurations of the equipment, as long as it is ensured that the SRS configurations of different terminal equipment in an area satisfy orthogonality.

In some embodiments, the SRS configuration of terminal devices in an area may be configured by one network device, or may be configured by multiple network devices.

For example, the second area includes multiple sub-areas, and the SRS configurations of terminal devices in the multiple sub-areas may be configured by network devices in the corresponding sub-areas. For example, the second area includes a first sub-area and a second sub-area, the area where the first network device is located is the first sub-area, the area where the third network device is located is the second sub-area, and the area in the first sub-area is The SRS configuration used by the terminal device may be configured by the first network device, and the SRS configuration used by the terminal device in the second sub-area may be configured by the third network device.

In some embodiments, the first network device may send inquiry signaling to network devices in other sub-areas in the second area to inquire whether the first SRS configuration meets the SRS configurations of terminal devices in other sub-areas. Sexual intercourse.

Optionally, in the case where the first network device cannot learn the SRS configuration used by terminal devices in other sub-areas within the second area, the first network device may provide the information to the networks in other sub-areas within the second area. The device sends an inquiry command.

For example, the first network device may send second signaling to the third network device, where the second signaling is used to query the third network device whether the first SRS configuration is consistent with the terminal in the second sub-area. The SRS configuration used by the device meets orthogonality.

Further, the first network device may receive a third signaling returned by the third network device. The third signaling is used to indicate whether the first SRS configuration is consistent with the SRS configuration used by the terminal device in the second sub-area. Satisfy orthogonality.

Optionally, the second signaling may include third indication information, where the third indication information is used to indicate the first SRS configuration. For example, the third indication information is used to indicate the index information of the first SRS configuration, or it may also be a third indication information. The third indication information may also indicate specific configuration parameters of the first SRS configuration. For the specific indication method, please refer to the relevant description of the first indication information. For the sake of brevity, details will not be described here.

Optionally, the third signaling may include fourth indication information, the fourth indication information being used to indicate whether the first SRS configuration satisfies orthogonality with the SRS configuration used by the terminal device in the second sub-area.

Optionally, in some embodiments, when the first SRS configuration and the SRS configuration used by the terminal equipment in the second sub-area do not satisfy orthogonality, the fourth indication information may also indicate that the first SRS configuration and The reason why the SRS configuration used by the terminal equipment in the second sub-area does not satisfy orthogonality is, for example, SRS sequence conflict, SRS time domain resource conflict, and/or SRS frequency domain resource conflict, etc.

In some embodiments of the present application, the method 300 further includes:

The first network device sends query signaling to the first type network device to inquire whether the first SRS configuration satisfies orthogonality with the SRS configuration of the terminal device in the area where the first type network device is located, where the first type network device The SRS sequence configured for the terminal equipment in the area where the first type of network equipment is located is the same as the SRS sequence used by the terminal equipment in the first area.

Further, the first network device may receive a reply from the first type network device, and the reply may carry indication information for indicating whether the first SRS configuration meets the SRS configuration of the terminal device in the area where the first type network device is located. Sexual intercourse.

In some embodiments of the present application, the method 300 further includes:

In the case where the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, the first network device may instruct the terminal device not to update the SRS configuration, or in other words, continue to use the first SRS configuration to send SRS.

For example, if the first SRS configuration and the SRS configuration used by the terminal equipment in the first sub-area satisfy orthogonality, and the first SRS configuration and the SRS used by the terminal equipment in other sub-areas in the second area also satisfy Orthogonality is determined, then it is determined that the first SRS configuration and the SRS configurations of other terminal devices in the second area satisfy orthogonality; otherwise, it is determined that the first SRS configuration and the SRS configurations of other terminal devices in the second area do not satisfy orthogonality. Sexual intercourse.

It should be understood that in this embodiment of the present application, the orthogonality satisfied between the first SRS configuration and the SRS configurations of other terminal devices in the second area may refer to the fact that the first SRS configuration and the SRS configurations of other terminal devices in the second area satisfy At least one of the following is different: SRS sequence information, SRS time domain resource information, and SRS frequency domain resource information.

Optionally, the first network device may use an explicit instruction or an implicit instruction to instruct the terminal device not to update the SRS configuration.

Optionally, the explicit indication may include but is not limited to: the first network device sends a first signaling to the terminal device, the first signaling carries second indication information, and the second indication information is used to indicate not to update the SRS. configuration. For the specific implementation of the second indication information, refer to the relevant description in the method 200, which will not be described again here.

Optionally, the implicit indication may include but is not limited to: the first network device sends a first signaling to the terminal device, the first signaling does not carry the SRS configuration, or the first network device does not send signaling to the terminal device. . In this case, the terminal device considers that the SRS configuration will not be updated.

In other embodiments of this application, the method 300 further includes:

When the first SRS configuration does not satisfy orthogonality with the SRS configurations of other terminal devices in the second area, the first network device sends first signaling, and the first signaling carries update SRS configuration.

Optionally, when updating the SRS configuration, only part of the SRS configuration may be updated, for example, only the sequence information of the SRS may be updated, or only the resource information of the SRS may be updated, or the entire SRS configuration may be updated.

Correspondingly, the first signaling may include the complete SRS configuration, such as SRS sequence information, SRS resource information, etc. Alternatively, the first network device may only include the configuration that needs to be updated in the first signaling. For example, if there is no need to update the SRS sequence information and only need to update the time domain resource information of the SRS, then the first signaling only needs to carry the update. The time domain resource information of SRS is helpful to reduce the signaling overhead of network equipment.

In summary, in the embodiment of this application, when the terminal device enters a new area, the network device can determine whether the SRS configuration used by the terminal device in the previous area conflicts with the SRS configuration currently used in the area. Further, If there is no conflict, instruct the terminal device to continue to use the SRS configuration used in the previous area to send SRS, which will help reduce the signaling overhead of the network device and at the same time reduce the power consumption overhead of the terminal device receiving the SRS configuration and applying the new SRS configuration. .

The method embodiments of the present application are described in detail above with reference to Figures 5 to 6. The device embodiments of the present application are described in detail below with reference to Figures 7 to 11. It should be understood that the device embodiments and the method embodiments correspond to each other, and are similar to The description may refer to the method embodiments.

Figure 7 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in Figure 7, the terminal device 400 includes:

Communication unit 410, configured to send first indication information, where the first indication information is used to indicate a first sounding reference signal SRS configuration, where the first SRS configuration is an SRS used by the terminal device in the first area. configuration.

In some embodiments, the first indication information is used to indicate index information of the first SRS configuration.

In some embodiments, the first indication information is used to indicate at least one of the following:

Sequence information of SRS used by the terminal device in the first area;

The time domain resource information of the SRS used by the terminal device in the first area;

Frequency domain resource information of SRS used by the terminal equipment in the first area.

In some embodiments, the terminal device further includes:

A processing unit configured to determine whether to update the SRS configuration according to the first signaling.

In some embodiments, the processing unit is also used to:

If the first signaling does not carry the SRS configuration, determine not to update the SRS configuration; or

In the case where the first signaling includes second indication information, it is determined not to update the SRS configuration, where the second indication information is used to indicate not to update the SRS configuration.

In some embodiments, the processing unit is also used to:

In the case where the first signaling includes the updated SRS configuration, it is determined to update the SRS configuration.

In some embodiments, the first signaling includes the updated SRS configuration including:

The first signaling includes a second SRS configuration; or

The first signaling includes a modified configuration of the second SRS configuration relative to the first SRS configuration.

In some embodiments, the communication unit is also used to:

Without updating the SRS configuration, send SRS using the first SRS configuration; or

In the case where the SRS configuration is updated, the SRS is sent using the updated SRS configuration.

In some embodiments, the first signaling includes at least one of the following:

Radio resource control RRC signaling;

Media access control control element MAC CE.

In some embodiments, the first area includes a cell, or,

The first area includes a plurality of cells.

In some embodiments, the first indication information is carried through at least one of the following signaling:

RRC signaling;

Mac CE.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The above-mentioned processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the terminal device 400 are respectively intended to implement Figures 5 to 6 The corresponding process of the terminal device in the method embodiment shown is not repeated here for the sake of simplicity.

Figure 8 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of Figure 8 includes:

The communication unit 510 is configured to obtain a first sounding reference signal SRS configuration, where the first SRS configuration is an SRS configuration used by the terminal device in the first area.

In some embodiments, the first SRS configuration is obtained from the terminal device.

In some embodiments, the communication unit 510 is also used to:

Receive first indication information, where the first indication information is used to indicate the first SRS configuration.

In some embodiments, the first indication information is used to indicate index information of the first SRS configuration.

In some embodiments, the first indication information is used to indicate at least one of the following:

Sequence information of SRS used by the terminal equipment in the first area;

The time domain resource information of the SRS used by the terminal device in the first area;

Frequency domain resource information of SRS used by the terminal equipment in the first area.

In some embodiments, the first SRS configuration is obtained from a second network device, and the second network device is a network device in the first area.

In some embodiments, the network device further includes:

A processing unit configured to determine whether the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, and the area where the network device is located belongs to the second area.

In some embodiments, the second area includes multiple sub-areas, the multiple sub-areas include a first sub-area and a second sub-area, the first sub-area is the area where the network device is located, and the second sub-area The sub-area is the area where the third network device is located, and the communication unit 510 is also used to:

Send second signaling to the third network device, the second signaling is used to query the third network device whether the first SRS configuration satisfies the SRS configuration of the terminal device in the second sub-area. Orthogonality;

Receive third signaling replied by the third network device, where the third signaling is used to indicate whether the first SRS configuration satisfies orthogonality with the SRS configuration of the terminal device in the second sub-area.

In some embodiments, the communication unit 510 is also used to:

When the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, the first signaling is sent, and the first signaling does not carry the SRS configuration, or the The first signaling carries second indication information, and the second indication information is used to indicate not to update the SRS configuration.

In some embodiments, the communication unit 510 is also used to:

When the first SRS configuration does not satisfy orthogonality with the SRS configurations of other terminal devices in the second area, first signaling is sent, and the first signaling carries the updated SRS configuration.

In some embodiments, the first signaling includes at least one of the following:

Radio resource control RRC signaling;

Media access control control element MAC CE.

In some embodiments, the first area includes a cell, or,

The first area includes a plurality of cells.

In some embodiments, the first indication information is carried through at least one of the following signaling:

RRC signaling;

Mac CE.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The above-mentioned processing unit may be one or more processors.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 500 are respectively intended to implement Figures 5 to 6 For the sake of simplicity, the corresponding processes of the network equipment in the method embodiment shown will not be described again here.

Figure 9 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in Figure 9 includes a processor 610. The processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in Figure 9, the communication device 600 may further include a memory 620. The processor 610 can call and run the computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

Optionally, as shown in Figure 9, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, the communication device 600 may send information or data to other devices, or receive other devices. Information or data sent by the device.

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be a network device according to the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, details will not be repeated here. .

Optionally, the communication device 600 can be a mobile terminal/terminal device according to the embodiment of the present application, and the communication device 600 can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For the sake of simplicity, , which will not be described in detail here.

Figure 10 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in Figure 10 includes a processor 710. The processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10 , the chip 700 may also include a memory 720 . The processor 710 can call and run the computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, the details will not be described again.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiment of the present application. For the sake of simplicity, here No longer.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Figure 11 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 11 , the communication system 900 includes a terminal device 910 and a network device 920 .

Among them, the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, no further details will be given here. .

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip and has signal processing capabilities. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available processors. Programmed logic devices, discrete gate or transistor logic devices, discrete hardware components. Each method, step and logical block diagram disclosed in the embodiment of this application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of illustration, but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

It should be understood that the above memory is an exemplary but not restrictive description. For example, the memory in the embodiment of the present application can also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, memories in embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of simplicity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiment of the present application. , for the sake of brevity, will not be repeated here.

An embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, they are not included here. Again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, no further details will be given here.

An embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of simplicity , which will not be described in detail here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the various methods implemented by the mobile terminal/terminal device in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

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

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

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims (54)

1. A method of wireless communication, characterized by including:

   The terminal device sends first indication information, where the first indication information is used to indicate a first sounding reference signal SRS configuration, where the first SRS configuration is an SRS configuration used by the terminal device in the first area.
2. The method according to claim 1, wherein the first indication information is used to indicate index information of the first SRS configuration.
3. The method according to claim 1, characterized in that the first indication information is used to indicate at least one of the following:

   Sequence information of SRS used by the terminal equipment in the first area;

   The time domain resource information of the SRS used by the terminal device in the first area;

   Frequency domain resource information of SRS used by the terminal equipment in the first area.
4. The method according to any one of claims 1-3, characterized in that the method further includes:

   The terminal device determines whether to update the SRS configuration according to the first signaling.
5. The method according to claim 4, characterized in that the terminal device determines whether to update the SRS configuration according to the first signaling, including:

   If the first signaling does not carry the SRS configuration, determine not to update the SRS configuration; or

   In the case where the first signaling includes second indication information, it is determined not to update the SRS configuration, where the second indication information is used to indicate not to update the SRS configuration.
6. The method according to claim 4, characterized in that the terminal device determines whether to update the SRS configuration according to the first signaling, including:

   In the case where the first signaling includes the updated SRS configuration, it is determined to update the SRS configuration.
7. The method according to claim 6, wherein the first signaling includes updated SRS configuration including:

   The first signaling includes a second SRS configuration; or

   The first signaling includes a modified configuration of the second SRS configuration relative to the first SRS configuration.
8. The method according to any one of claims 4-7, characterized in that the method further includes:

   Without updating the SRS configuration, send SRS using the first SRS configuration; or

   In the case where the SRS configuration is updated, the SRS is sent using the updated SRS configuration.
9. The method according to any one of claims 4-8, characterized in that the first signaling includes at least one of the following:

   Radio resource control RRC signaling;

   Media access control control element MAC CE.
10. The method according to any one of claims 1-9, characterized in that,

    The first area includes a cell, or,

    The first area includes a plurality of cells.
11. The method according to any one of claims 1-10, characterized in that the first indication information is carried through at least one of the following signaling:

    RRC signaling;

    Mac CE.
12. A method of wireless communication, characterized by including:

    The first network device acquires a first sounding reference signal SRS configuration, where the first SRS configuration is an SRS configuration used by the terminal device in the first area.
13. The method according to claim 12, characterized in that the first SRS configuration is obtained from the terminal device.
14. The method according to claim 12 or 13, characterized in that the first network device obtains the first sounding reference signal SRS configuration, including:

    The first network device receives first indication information, where the first indication information is used to indicate the first SRS configuration.
15. The method according to claim 14, wherein the first indication information is used to indicate index information of the first SRS configuration.
16. The method according to claim 14, characterized in that the first indication information is used to indicate at least one of the following:

    Sequence information of SRS used by the terminal equipment in the first area;

    The time domain resource information of the SRS used by the terminal device in the first area;

    Frequency domain resource information of SRS used by the terminal equipment in the first area.
17. The method of claim 12, wherein the first SRS configuration is obtained from a second network device, and the second network device is a network device in the first area.
18. The method according to any one of claims 12-17, characterized in that the method further includes:

    The first network device determines whether the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, and the area where the first network device is located belongs to the second area.
19. The method of claim 18, wherein the second region includes a plurality of sub-regions, the plurality of sub-regions include a first sub-region and a second sub-region, and the first sub-region is the first sub-region. The area where the network device is located, the second sub-area is the area where the third network device is located, the first network device determines whether the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, include:

    The first network device sends second signaling to the third network device, the second signaling is used to query the third network device whether the first SRS configuration is consistent with the configuration in the second sub-area. The SRS configuration of the terminal equipment satisfies orthogonality;

    The first network device receives the third signaling replied by the third network device, the third signaling is used to indicate whether the first SRS configuration is consistent with the SRS configuration of the terminal device in the second sub-area. Satisfy orthogonality.
20. The method according to claim 18 or 19, characterized in that the method further includes:

    When the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, the first network device sends first signaling, and the first signaling does not carry SRS. configuration, or the first signaling carries second indication information, and the second indication information is used to indicate not to update the SRS configuration.
21. The method according to claim 18 or 19, characterized in that the method further includes:

    When the first SRS configuration does not satisfy orthogonality with the SRS configurations of other terminal devices in the second area, the first network device sends first signaling, and the first signaling carries update SRS configuration.
22. The method according to claim 20 or 21, characterized in that the first signaling includes at least one of the following:

    Radio resource control RRC signaling;

    Media access control control element MAC CE.
23. The method according to any one of claims 12-22, characterized in that,

    The first area includes a cell, or,

    The first area includes a plurality of cells.
24. The method according to any one of claims 14-16, characterized in that the first indication information is carried through at least one of the following signaling:

    RRC signaling;

    Mac CE.
25. A terminal device, characterized by including:

    A communication unit configured to send first indication information, the first indication information being used to indicate a first sounding reference signal SRS configuration, wherein the first SRS configuration is an SRS configuration used by the terminal device in the first area. .
26. The terminal device according to claim 25, wherein the first indication information is used to indicate index information of the first SRS configuration.
27. The terminal device according to claim 25, characterized in that the first indication information is used to indicate at least one of the following:

    Sequence information of SRS used by the terminal equipment in the first area;

    The time domain resource information of the SRS used by the terminal device in the first area;

    Frequency domain resource information of SRS used by the terminal equipment in the first area.
28. The terminal device according to any one of claims 25-27, characterized in that the terminal device further includes:

    A processing unit configured to determine whether to update the SRS configuration according to the first signaling.
29. The terminal device according to claim 28, characterized in that the processing unit is also used to:

    If the first signaling does not carry the SRS configuration, determine not to update the SRS configuration; or

    In the case where the first signaling includes second indication information, it is determined not to update the SRS configuration, where the second indication information is used to indicate not to update the SRS configuration.
30. The terminal device according to claim 28, characterized in that the processing unit is also used to:

    In the case where the first signaling includes the updated SRS configuration, it is determined to update the SRS configuration.
31. The terminal device according to claim 30, wherein the first signaling includes updated SRS configuration including:

    The first signaling includes a second SRS configuration; or

    The first signaling includes a modified configuration of the second SRS configuration relative to the first SRS configuration.
32. The terminal device according to any one of claims 28-31, characterized in that the communication unit is also used for:

    Without updating the SRS configuration, send SRS using the first SRS configuration; or

    In the case where the SRS configuration is updated, the SRS is sent using the updated SRS configuration.
33. The terminal device according to any one of claims 28-32, characterized in that the first signaling includes at least one of the following:

    Radio resource control RRC signaling;

    Media access control control element MAC CE.
34. The terminal device according to any one of claims 25-33, characterized in that,

    The first area includes a cell, or,

    The first area includes a plurality of cells.
35. The terminal device according to any one of claims 25-34, characterized in that the first indication information is carried through at least one of the following signaling:

    RRC signaling;

    Mac CE.
36. A network device, characterized by including:

    A communication unit configured to obtain a first sounding reference signal SRS configuration, where the first SRS configuration is an SRS configuration used by the terminal device in the first area.
37. The network device according to claim 36, characterized in that the first SRS configuration is obtained from the terminal device.
38. The network device according to claim 36 or 37, characterized in that the communication unit is also used for:

    Receive first indication information, where the first indication information is used to indicate the first SRS configuration.
39. The network device according to claim 38, wherein the first indication information is used to indicate index information of the first SRS configuration.
40. The network device according to claim 38, characterized in that the first indication information is used to indicate at least one of the following:

    Sequence information of SRS used by the terminal device in the first area;

    The time domain resource information of the SRS used by the terminal device in the first area;

    Frequency domain resource information of SRS used by the terminal equipment in the first area.
41. The network device according to claim 36, wherein the first SRS configuration is obtained from a second network device, and the second network device is a network device in the first area.
42. The network device according to any one of claims 36-41, characterized in that the network device further includes:

    A processing unit configured to determine whether the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, and the area where the network device is located belongs to the second area.
43. The network device according to claim 42, characterized in that the second area includes a plurality of sub-areas, the plurality of sub-areas include a first sub-area and a second sub-area, the first sub-area is the network The area where the device is located, the second sub-area is the area where the third network device is located, and the communication unit is also used to:

    Send second signaling to the third network device, the second signaling is used to query the third network device whether the first SRS configuration satisfies the SRS configuration of the terminal device in the second sub-area. Orthogonality;

    Receive third signaling replied by the third network device, where the third signaling is used to indicate whether the first SRS configuration satisfies orthogonality with the SRS configuration of the terminal device in the second sub-area.
44. The network device according to claim 42 or 43, characterized in that the communication unit is also used for:

    When the first SRS configuration satisfies orthogonality with the SRS configurations of other terminal devices in the second area, the first signaling is sent, and the first signaling does not carry the SRS configuration, or the The first signaling carries second indication information, and the second indication information is used to indicate not to update the SRS configuration.
45. The network device according to claim 42 or 43, characterized in that the communication unit is also used for:

    When the first SRS configuration does not satisfy orthogonality with the SRS configurations of other terminal devices in the second area, first signaling is sent, and the first signaling carries the updated SRS configuration.
46. The network device according to claim 44 or 45, characterized in that the first signaling includes at least one of the following:

    Radio resource control RRC signaling;

    Media access control control element MAC CE.
47. The network device according to any one of claims 36-46, characterized in that,

    The first area includes a cell, or,

    The first area includes a plurality of cells.
48. The network device according to any one of claims 38-40, characterized in that the first indication information is carried through at least one of the following signaling:

    RRC signaling;

    Mac CE.
49. A terminal device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 1 to 12. The method described in one item.
50. A network device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 13 to 24. The method described in one item.
51. A chip, characterized in that it includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 12, or as The method of any one of claims 13 to 24.
52. A computer-readable storage medium, characterized in that it is used to store a computer program, the computer program causing the computer to perform the method as described in any one of claims 1 to 12, or as any one of claims 13 to 24 method described in the item.
53. A computer program product, characterized by comprising computer program instructions, the computer program instructions causing the computer to perform the method as described in any one of claims 1 to 12, or as described in any one of claims 13 to 24 Methods.
54. A computer program, characterized in that the computer program causes the computer to perform the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 24.

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