SRS resource allocation device and method

Abstract

A sounding reference signal (SRS) resource allocation method performed by a user equipment (UE) includes configuring, by a base station, a first uplink (UL) carrier and a second UL carrier, and indicating, by the base station, a first SRS resource in the first UL carrier and a second SRS resource in the second UL carrier to aggregate with a bandwidth.

Description

Technical Field

[0001] This disclosure relates to the field of communication systems, and more specifically, to apparatus and method for allocating detection reference signals (SRS) resources. Background Technology

[0002] In current systems, the sounding reference signal (SRS) for positioning is transmitted within each uplink bandwidth part (BWP) of each uplink carrier. Even if the user equipment (UE) has sufficient power to transmit the positioning SRS, the bandwidth of the positioning SRS remains limited. Therefore, positioning performance based on uplink timing is constrained. The UE can transmit multiple positioning SRSs on multiple uplink carriers, but current new radio (NR) systems and the 3rd generation partnership project (3GPP) specifications allow NR systems to coherently combine positioning SRSs transmitted on different carriers to form an equivalent larger bandwidth.

[0003] Therefore, there is a need for a detection reference signal (SRS) resource allocation device and method. Summary of the Invention

[0004] The purpose of this disclosure is to provide a probe reference signal (SRS) resource allocation apparatus and method that can solve problems in the prior art and other problems, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0005] In a first aspect of this disclosure, a method for allocating sounding reference signals (SRS) resources performed by a user equipment (UE) includes: configuring a first uplink (UL) carrier and a second UL carrier by a base station, and instructing the base station to aggregate the first SRS resources in the first UL carrier and the second SRS resources in the second UL carrier with bandwidth.

[0006] In a second aspect of this disclosure, a UE includes a receiver. The receiver is configured by a base station to use a first uplink (UL) carrier and a second UL carrier, and the receiver is instructed by the base station to aggregate first SRS resources in the first UL carrier and second SRS resources in the second UL carrier with bandwidth.

[0007] In a third aspect of this disclosure, a UE includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The UE is used to perform the methods described above.

[0008] In a fourth aspect of this disclosure, a method for allocating sounding reference signals (SRS) resources performed by a base station includes: configuring a first uplink (UL) carrier and a second UL carrier to a user equipment (UE), and instructing the UE to aggregate the first SRS resources in the first UL carrier and the second SRS resources in the second UL carrier with bandwidth.

[0009] In a fifth aspect of this disclosure, a base station includes an allocator and an indicator. The allocator is used to allocate a first uplink (UL) carrier and a second UL carrier to a user equipment (UE), and the indicator is used to indicate to the UE a first SRS resource in the first UL carrier and a second SRS resource in the second UL carrier with bandwidth aggregation.

[0010] In a sixth aspect of this disclosure, a base station includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The base station is used to provide the method described above.

[0011] In a seventh aspect of this disclosure, a non-transitory machine-readable storage medium stores instructions that, when executed by a computer, cause the computer to perform the methods described above.

[0012] In an eighth aspect of this disclosure, a chip includes a processor for calling and running a computer program stored in a memory to cause a device on which the chip is mounted to perform the methods described above.

[0013] In a ninth aspect of this disclosure, a computer-readable storage medium is provided, wherein a computer program is stored that causes a computer to perform the above-described method.

[0014] In a tenth aspect of this disclosure, a computer program product includes a computer program that causes a computer to perform the methods described above.

[0015] In the eleventh aspect of this disclosure, a computer program causes a computer to perform the above-described method. Attached Figure Description

[0016] To more clearly illustrate the embodiments or related technologies of this disclosure, the following accompanying drawings will be briefly described in the embodiments. It is obvious that the drawings are only some embodiments of this disclosure, and those skilled in the art can obtain other drawings without any preconditions based on these drawings.

[0017] Figure 1 This is a diagram illustrating an example of positioning based on downlink (DL) measurements.

[0018] Figure 2 This is a block diagram of one or more user equipment (UE) and base stations communicating in a communication network system according to embodiments of the present disclosure.

[0019] Figure 3This is a block diagram of a UE according to an embodiment of the present disclosure.

[0020] Figure 4 This is a block diagram of a UE according to an embodiment of the present disclosure.

[0021] Figure 5 This is a flowchart illustrating a probe reference signal (SRS) resource allocation method performed by a UE according to an embodiment of the present disclosure.

[0022] Figure 6 This is a block diagram of a base station according to an embodiment of the present disclosure.

[0023] Figure 7 This is a block diagram of a base station according to an embodiment of the present disclosure.

[0024] Figure 8 This is a flowchart illustrating a detection reference signal (SRS) resource allocation method performed by a base station according to an embodiment of the present disclosure.

[0025] Figure 9 This is a block diagram of an example computing device according to an embodiment of the present disclosure.

[0026] Figure 10 This is a block diagram of a communication system according to an embodiment of the present disclosure. Detailed Implementation

[0027] The technical aspects, structural features, achieved objectives, and effects of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. Specifically, the terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the scope of this disclosure.

[0028] The technical solutions of this disclosure can be applied to various communication systems, such as Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based access to unlicensed spectrum (LTE-U), NR-based access to unlicensed spectrum (NR-U), Universal Mobile Telecommunication System (UMTS), Global Interoperability for Microwave Access (WiMAX), and Wireless Local Area Networks (WLANs). Network, WLAN, wireless fidelity (Wi-Fi), the future 5th generation (5G) system (also known as the new wireless (NR) system), or other communication systems, etc.

[0029] Optionally, the base station proposed in this application embodiment can provide communication coverage for a specific geographical area and can communicate with user equipment (UE) located within that coverage area. Optionally, the base station can be a gNB, a base transceiver station (BTS) in a GSM or CDMA system, or a Node B (NB) in a WCDMA system, or an evolved Node B (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radioaccess network (CRAN).

[0030] User equipment (UE) can refer to access terminals, subscriber units, subscriber stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication equipment, user agents, or user equipment. Access terminals can be cellular wireless phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices, other processing devices coupled to wireless modems, in-vehicle equipment, wearable devices, terminal equipment in future 5G networks, and terminal equipment in future evolved public land mobile networks (PLMNs), etc.

[0031] Optionally, the communication system of this application embodiment can be applied to unlicensed spectrum, which can also be considered as shared spectrum; or, the communication system of this application embodiment can also be applied to licensed spectrum, which can also be considered as non-shared spectrum.

[0032] Positioning technology is one of the core technologies of wireless communication and navigation systems. 5G NR systems support positioning technology. 3GPP Release 16 specifies the following positioning schemes: downlink (DL) time difference of arrival (TDOA), uplink (UL) TDOA, round trip time (RTT), DL angle of departure (DL-AoD), UL angle of arrival (AoA), and enhanced cell ID (E-CID).

[0033] In 3GPP NR, a downlink positioning reference signal (PRS) is introduced to support downlink positioning measurements, and a sounding reference signal (SRS) for positioning is introduced to support uplink positioning measurements. Specifically, NR Release 16 supports the following positioning measurements: DL reference signal time difference (RSTD) measured via DL PRS, UL relative time of arrival (RTOA) measured via SRS for positioning, UE receive-transmit (Rx-Tx) time difference, gNB Rx-Tx time difference, DL PRS reference signal received power (RSRP), UL SRS RSRP, and UL AoA.

[0034] NR-based positioning solutions involve the following functional entities: UE: The UE measures DL PRS resources sent from multiple different TRPs or sends SRS resources for positioning.

[0035] Transmission / reception points (TRPs): To determine the location of a UE, multiple TRPs are typically involved. Each TRP can send a DL PRS to the UE, or receive and measure the SRS sent by the UE for positioning.

[0036] Location server: also known as "location management function" (LMF).

[0037] Figure 1 An example of NR positioning based on DL measurements is shown. As illustrated in the example, the basic process is as follows: The LMF and TRP coordinate the DL PRS configuration. Each TRP sends DL PRS resources according to the DL PRS configuration. The UE measures the DL PRS resources sent from multiple TRPs, and then measures the DL PRS RSRP and / or DL ​​RSTD. The UE reports the positioning measurement results to the LMF. Furthermore, the LMF calculates the UE's location based on the reported positioning measurement results. Specifically, in the DL-AoD method, the UE measures the RSRP or path RSRP of one or more DL RS resources and then reports the measurement results to the LMF. The LMF can determine a UE's departure angle relative to each TRP, and then the LMF can calculate the UE's location.

[0038] To support uplink positioning methods, the UE can transmit SRS resources for positioning. Within a UL bandwidth portion (BWP) of a UL carrier, the UE can configure one or more sets of SRS resources for positioning. Each set can contain one or more SRS resources for positioning. The UE can transmit one SRS resource for positioning to either the serving cell TRP or the non-serving cell TRP. Each SRS resource for positioning can be equipped with a path loss RS, which can be a positioning reference signal (PRS) or a synchronization signal / physical broadcast channel (SS / PBCH) block from the serving or non-serving cell. The SRS resources for positioning are configured within a UL BWP of the UL carrier. If the UE supports carrier aggregation across multiple UL carriers, SRS resources for positioning can be configured across multiple UL carriers.

[0039] Positioning performance and accuracy based on timing are limited by the bandwidth of the Positioning Reference Signal (PRS). In current systems, the Sounding Reference Signal (SRS) for positioning is transmitted within each uplink bandwidth (BWP) of each uplink carrier. Even if the User Equipment (UE) has sufficient power to transmit the SRS for positioning, the bandwidth of the SRS for positioning remains limited. Therefore, positioning performance based on uplink timing is constrained. While a UE can transmit multiple SRSs for positioning on multiple uplink carriers, current New Radio (NR) systems and the 3rd Generation Partnership Project (3GPP) specifications allow NR systems to coherently combine SRSs for positioning transmitted on different carriers to form an equivalent larger bandwidth.

[0040] Some embodiments of this disclosure provide a solution for configuring and transmitting SRS resources for location to support receive bandwidth aggregation.

[0041] Figure 2The illustration shows one or more user equipment (UE) 10 and base station (e.g., next-generation node B (gNB) or eNB) 20 communicating in a communication network system 30 (e.g., an NR system) according to embodiments of the present disclosure in some embodiments. The communication network system 30 includes one or more UEs 10 and base station 20. One or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and transceiver 23. The processor 11 or 21 may be used to implement the functions, procedures, and / or methods described herein. A radio interface protocol layer may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled to the processor 11 or 21 and stores various information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled to the processor 11 or 21 and transmits and / or receives radio signals.

[0042] Processor 11 or 21 may include an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and / or data processing devices. Memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 13 or 23 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., processes, functions, etc.) that perform the functions described herein. These modules may be stored in memory 12 or 22 and executed by processor 11 or 21. Memory 12 or 22 may be implemented within processor 11 or 21 or external to processor 11 or 21, in which case memory 12 or 22 may be communicatively coupled to processor 11 or 21 in various ways known in the art.

[0043] In some embodiments, transceiver 13 is configured by base station 20 with a first uplink (UL) carrier and a second UL carrier, and transceiver 13 is instructed by base station 20 to aggregate first SRS resources in the first UL carrier and second SRS resources in the second UL carrier with bandwidth. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0044] In some embodiments, processor 21 is configured to allocate a first uplink (UL) carrier and a second UL carrier to UE 10, and processor 21 is configured to indicate to UE 10 a first SRS resource in the first UL carrier and a second SRS resource in the second UL carrier with bandwidth aggregation. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0045] Figure 3 An example of a UE 300 according to an embodiment of this application is shown. The UE 300 is used to implement some embodiments of this disclosure. Some embodiments of this disclosure can be implemented in the UE 300 using any appropriately configured hardware and / or software. The UE 300 includes a receiver 301. The receiver 301 is configured by a base station with a first uplink (UL) carrier and a second UL carrier, and the receiver 301 is instructed by the base station to aggregate first SRS resources in the first UL carrier and second SRS resources in the second UL carrier with bandwidth. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0046] Figure 4 An example of a UE 400 according to an embodiment of this disclosure is shown. The UE 400 is used to implement some embodiments of this disclosure. Some embodiments of this disclosure can be implemented in the UE 400 using any suitably configured hardware and / or software. The UE 400 may include a memory 401, a transceiver 402, and a processor 403 coupled to the memory 401 and the transceiver 402. The processor 403 may be used to implement the functions, procedures, and / or methods described in this specification. A radio interface protocol layer may be implemented in the processor 403. The memory 401 is operatively coupled to the processor 403 and stores various information to operate the processor 403. The transceiver 402 is operatively coupled to the processor 403 and transmits and / or receives radio signals. The processor 403 may include an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and / or data processing devices. The memory 401 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 402 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., processes, functions, etc.) that perform the functions described herein. These modules may be stored in memory 401 and executed by processor 403. Memory 401 may be implemented within processor 403 or external to processor 403, in which case memory 401 may be communicatively coupled to processor 403 in various ways known in the art.

[0047] In some embodiments, transceiver 402 is configured by the base station with a first uplink (UL) carrier and a second UL carrier, and the base station instructs transceiver 402 to aggregate first SRS resources in the first UL carrier and second SRS resources in the second UL carrier with bandwidth. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0048] Figure 5 This is an example of a Sounding Reference Signal (SRS) resource allocation method 500 performed by a UE according to embodiments of the present disclosure. The Sounding Reference Signal (SRS) resource allocation method 500 performed by the UE is used to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the Sounding Reference Signal (SRS) resource allocation method 500 performed by the UE using any appropriately configured hardware and / or software. In some embodiments, the Sounding Reference Signal (SRS) resource allocation method 500 performed by the UE includes: operation 502, configuring a first uplink (UL) carrier and a second UL carrier by a base station; and operation 504, instructing the base station to aggregate the first SRS resource in the first UL carrier and the second SRS resource in the second UL carrier with bandwidth. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0049] In some embodiments, a first SRS resource and a second SRS resource are linked or associated for bandwidth aggregation. In some embodiments, the first SRS resource is a first SRS resource set in a first UL carrier, and the second SRS resource is a second SRS resource set in a second UL carrier. In some embodiments, the first SRS resource set and the second SRS resource set are linked or associated for bandwidth aggregation. In some embodiments, each SRS resource in the first SRS resource set is linked or associated with each SRS resource in the second SRS resource set according to the SRS resource order for bandwidth aggregation. In some embodiments, the symbol position of the first SRS resource is the same as the symbol position of the second SRS resource. In some embodiments, the first UL carrier and the second UL carrier are linked or associated for bandwidth aggregation.

[0050] In some embodiments, the method further includes being requested via signaling to transmit the first SRS resource and the second SRS resource using the same timing advance (TA) value. In some embodiments, the signaling includes downlink control information (DCI) or a medium access control (MAC) control element (CE) activation command. In some embodiments, if the first UL carrier and the second UL carrier are in different timing advance groups (TAGs), the UE is requested to adjust the uplink timing of the first SRS resource and the second SRS resource based on a timing advance offset value associated with the TAG of the first UL carrier or the TAG of the second UL carrier. In some embodiments, the method further includes being requested to calculate the transmit (TX) power of the first SRS resource and the TX power of the second SRS resource such that the TX power of each subcarrier on the first SRS resource is the same as the TX power of each subcarrier on the second SRS resource.

[0051] Figure 6 An example of a base station 600 according to an embodiment of this application is shown. The base station 600 is used to implement some embodiments of this disclosure. Some embodiments of this disclosure can be implemented in the base station 600 using any appropriately configured hardware and / or software. The base station 600 includes an allocator 601 and an indicator 602. The allocator 601 is used to allocate a first uplink (UL) carrier and a second UL carrier to a user equipment (UE), and the indicator 602 is used to indicate to the UE a first SRS resource in the first UL carrier and a second SRS resource in the second UL carrier with bandwidth aggregation. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0052] Figure 7An example of a base station 700 according to an embodiment of the present disclosure is shown. The base station 700 is used to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the base station 700 using any suitably configured hardware and / or software. The base station 700 may include a memory 701, a transceiver 702, and a processor 703 coupled to the memory 701 and the transceiver 702. The processor 703 may be used to implement the functions, processes, and / or methods described in this specification. A radio interface protocol layer may be implemented in the processor 703. The memory 701 is operatively coupled to the processor 703 and stores various information to operate the processor 703. The transceiver 702 is operatively coupled to the processor 703 and transmits and / or receives radio signals. The processor 703 may include an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and / or data processing devices. The memory 701 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 702 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., processes, functions, etc.) that perform the functions described herein. These modules may be stored in memory 701 and executed by processor 703. Memory 701 may be implemented within processor 703 or external to processor 703, in which case memory 701 may be communicatively coupled to processor 703 in various ways known in the art.

[0053] In some embodiments, the processor 703 is configured to allocate a first uplink (UL) carrier and a second UL carrier to a user equipment (UE), and the processor is configured to indicate to the UE a first SRS resource in the first UL carrier and a second SRS resource in the second UL carrier, along with bandwidth aggregation. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0054] Figure 8This is an example of a sounding reference signal (SRS) resource allocation method 800 performed by a base station according to embodiments of the present disclosure. The base station-performed SRS resource allocation method 800 is used to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the base station-performed SRS resource allocation method 800 using any appropriately configured hardware and / or software. In some embodiments, the base station-performed SRS resource allocation method 800 includes: operation 802, configuring a first uplink (UL) carrier and a second UL carrier to a user equipment (UE); and operation 804, instructing the UE to aggregate the first SRS resource in the first UL carrier and the second SRS resource in the second UL carrier with bandwidth. This can solve problems in the prior art and other issues, improve the performance of uplink-based positioning, and / or improve the performance of SRS resource allocation.

[0055] In some embodiments, a first SRS resource and a second SRS resource are linked or associated for bandwidth aggregation. In some embodiments, the first SRS resource is a first SRS resource set in a first UL carrier, and the second SRS resource is a second SRS resource set in a second UL carrier. In some embodiments, the first SRS resource set and the second SRS resource set are linked or associated for bandwidth aggregation. In some embodiments, each SRS resource in the first SRS resource set is linked or associated with each SRS resource in the second SRS resource set according to the SRS resource order for bandwidth aggregation. In some embodiments, the symbol position of the first SRS resource is the same as the symbol position of the second SRS resource. In some embodiments, the first UL carrier and the second UL carrier are linked or associated for bandwidth aggregation.

[0056] In some embodiments, the method further includes requesting the UE to transmit the first SRS resource and the second SRS resource using the same timing advance (TA) value via signaling. In some embodiments, the signaling includes downlink control information (DCI) or a media access control (MAC) control element (CE) activation command. In some embodiments, if the first UL carrier and the second UL carrier are in different timing advance groups (TAGs), the base station requests the UE to adjust the uplink timing of the first SRS resource and the second SRS resource based on a timing advance offset value associated with the TAG of the first UL carrier or the TAG of the second UL carrier. In some embodiments, the method further includes requesting the UE to calculate the transmit (TX) power of the first SRS resource and the TX power of the second SRS resource such that the TX power of each subcarrier on the first SRS resource is the same as the TX power of each subcarrier on the second SRS resource.

[0057] Exemplary technical solutions: In some embodiments, the UE may be configured with multiple UL carriers. In a first UL carrier, the UE may be configured with one or more SRS resources for positioning. In a second UL carrier, the UE may be configured with one or more SRS resources for positioning. The system may indicate to the UE that the first SRS resources for positioning in the first UL carrier and the second SRS resources for positioning in the second UL carrier can be aggregated with bandwidth for positioning measurements at the receiver.

[0058] For example, the system can instruct the UE to link or associate the first SRS resource with the second SRS resource for bandwidth aggregation. Through system-provided configuration, the UE can be requested to transmit the first and second SRS resources accordingly. For example, the UE can be requested to apply the same timing advance (TA) value to the transmission of the first and second SRS resources, even if the first and second SRS resources are transmitted on different UL carriers. The system can use a single DCI to trigger the transmission of both the first and second SRS resources used for positioning. If the SRS resource used for positioning is semi-static, the system can use a single Media Access Control (MAC) Control Unit (CE) activation command to activate the transmission.

[0059] In some embodiments, the UE may configure a first SRS resource set for positioning on a first uplink carrier, and the UE may configure a second SRS resource set for positioning on a second uplink carrier. The first SRS resource set for positioning may contain one or more SRS resources for positioning, and the second SRS resource set for positioning may contain one or more SRS resources for positioning. The system may instruct the UE to link or associate an SRS resource in the first set with an SRS resource in the second set for reception via bandwidth aggregation. This disclosure provides various embodiments for providing configurations for linking SRS resources for bandwidth aggregation.

[0060] For example, the UE can provide configuration information that indicates that a first SRS resource set used for positioning is linked or associated with a second SRS resource set used for positioning.

[0061] For example, the configuration of an SRS resource set for location can include an indicator. SRS resource sets for location with the same indicator value are linked or associated with each other for receive bandwidth aggregation. For instance, in the configuration of a first SRS resource set for location, the indicator is set to 0, and in the configuration of a second SRS resource set for location, the indicator is set to 1. Then, the SRS resources in the first SRS resource set are linked or associated with the SRS resources in the second SRS resource set for receive bandwidth aggregation.

[0062] When a UE receives an indication that a first SRS resource set for positioning is linked or associated with a second SRS resource set for positioning for receiving via bandwidth aggregation, the UE may assume that each SRS resource in the first SRS resource set is linked or associated with each SRS resource in the second SRS resource set according to the order of SRS resources in each set for receiving bandwidth aggregation.

[0063] When a UE receives an indication that a first SRS resource set for location is linked or associated with a second SRS resource set for location for reception via bandwidth aggregation, the UE may assume that the two SRS resources are linked or associated if the symbol position of an SRS resource in the first SRS resource set is the same as the symbol position of an SRS resource in the second SRS resource set.

[0064] In some embodiments, the UE may receive an indication that a first uplink carrier and a second uplink carrier are linked or associated for receiving bandwidth aggregation. For example, each uplink carrier may be configured with an indicator indicating the link or association for receiving bandwidth aggregation to perform positioning measurements. If the indicator for the first uplink carrier and the indicator for the second uplink carrier are set to the same value, the UE may assume that the first uplink carrier and the second uplink carrier are linked or associated for receiving bandwidth aggregation to perform positioning measurements.

[0065] For example, the first uplink carrier can provide an index of the second uplink carrier to indicate that the first uplink carrier is linked or associated with the second uplink carrier for receive bandwidth aggregation for positioning measurements.

[0066] If the UE receives an indication that the first uplink carrier and the second uplink carrier are linked or associated, the UE may assume that the SRS resources configured for positioning in the first uplink carrier are linked or associated with the SRS resources configured for positioning in the second uplink carrier for receive bandwidth aggregation. The UE may also assume that each set of SRS resources configured for positioning in the first uplink carrier is linked or associated with each set of SRS resources configured for positioning in the second uplink carrier according to the order of the SRS resource sets configured for positioning in each uplink carrier.

[0067] In some embodiments, the UE may receive an indication that a first SRS resource for positioning is linked or associated with a second SRS resource for positioning for receive bandwidth aggregation to perform positioning measurements. For example, the configuration of each SRS resource for positioning may include an indicator indicating the association between the positioning SRS resources for receiving bandwidth aggregation. If the values ​​of the indicators for the configurations of the positioning SRS resources in the first uplink carrier and the positioning SRS resources in the second uplink carrier are the same, the UE may assume that the two positioning SRS resources are linked or associated with each other for receive bandwidth aggregation.

[0068] For example, the configuration of an SRS resource for positioning may include the IDs of one or more SRS resources for positioning configured in other uplink carriers, and the SRS resource for positioning is linked or associated with the SRS resource for positioning indicated by the ID included in the configuration of the SRS resource for positioning.

[0069] In some implementations, the UE can receive a request to transmit two linked SRS resources for positioning with the same TA value. The UE can configure SRS resources for positioning on a first uplink carrier and on a second uplink carrier. The UE can be configured such that the first SRS resource for positioning on the first uplink carrier and the second SRS resource for positioning on the second uplink carrier are linked for receive bandwidth aggregation. The UE can receive a request to apply the same TA to the transmission of the first SRS resource for positioning and the second SRS resource for positioning. If the first uplink carrier and the second uplink carrier are in different timing advance groups (TAGs), the UE can receive a request to adjust the uplink timing of the first SRS resource for positioning and the second SRS resource for positioning based on a timing advance offset value associated with the TAG of the first uplink carrier. If the first uplink carrier and the second uplink carrier are in different TAGs, the UE can be requested to adjust the uplink timing of the first SRS resource for positioning and the second SRS resource for positioning based on a timing advance offset value associated with the TAG of the second uplink carrier.

[0070] In some embodiments, the UE may configure semi-static SRS resources for positioning on a first uplink carrier, and the UE may configure semi-static SRS resources for positioning on a second uplink carrier. The UE may be configured such that a first SRS resource for positioning containing semi-static SRS resources on the first uplink carrier and a second SRS resource for positioning containing semi-static SRS resources on the second uplink carrier are interconnected or associated for receive bandwidth aggregation. The system may send a MAC CE activation to activate the transmission of the first SRS resource set and the second SRS resource set.

[0071] In some embodiments, the system sends a MAC CE activation command, indicating the ID of the first SRS resource set in the MAC CE activation command. Upon receiving the MAC CE activation command, the system can request the UE to send the SRS resources contained in the first SRS resource set and the SRS resources contained in the second SRS resource set. The MAC CE command can indicate to the UE the spatial relationship information or transmission configuration indicator (TCI) status of each SRS resource contained in the first SRS resource set. In this way, the UE can receive requests to apply the indicated spatial relationship information or TCI status to the corresponding SRS resources in the first SRS resource set and the linked SRS resources in the second SRS resource set.

[0072] In some embodiments, the UE may be configured with aperiodic SRS resources for positioning on a first uplink carrier and aperiodic SRS resources for positioning on a second uplink carrier. The UE may be configured such that the first SRS resource for positioning on the first uplink carrier containing aperiodic SRS resources is linked or associated with the second SRS resource for positioning on the second uplink carrier for receive bandwidth aggregation. The system may send a DCI format to trigger the transmission of the first SRS resource set and the second SRS resource set. In one example, the system sends a DCI command, indicating the ID of the first SRS resource set in the DCI command. Upon receiving the DCI command, the system may request the UE to send the SRS resources contained in the first SRS resource set and the SRS resources contained in the second SRS resource set.

[0073] In some embodiments, the UE may be configured with SRS resources for positioning on a first uplink carrier and SRS resources for positioning on a second uplink carrier. The UE may be configured such that the first SRS resource set for positioning on the first uplink carrier and the second SRS resource set for positioning on the second uplink carrier are interconnected or associated for receive bandwidth aggregation. The UE may be instructed to interconnect or associate the first SRS resources for positioning on the first uplink carrier and the second SRS resources for positioning on the second uplink carrier for receive bandwidth aggregation. When the UE transmits the first SRS resources and the second SRS resources for positioning, the UE may be requested to calculate the transmit (Tx) power of the first SRS resources and the second SRS resources so that the Tx power of each subcarrier on the first SRS resources is the same as the Tx power of each subcarrier on the second SRS resources. When the total UE transmit power of the Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Physical Random Access Channel (PRACH), and SRS on the serving cell exceeds the maximum power control (PCMAX), the UE may receive a request to calculate the Tx power of the first SRS resource and the second SRS resource so that the Tx power of each subcarrier on the first SRS resource is the same as the Tx power of each subcarrier on the second SRS resource.

[0074] Technical advantages: In some embodiments, using the proposed technology, 5G NR systems can support a new SRS transmission mechanism for positioning, which allows the positioning system to coherently combine multiple SRS resources for positioning transmitted on different uplink carriers. This can improve the performance of uplink-timing-based positioning measurements, thereby improving the performance of uplink-based positioning methods and enhancing the overall NR positioning system.

[0075] Some embodiments offer the following commercial benefits: 1. Solving problems and other issues in the prior art. 2. Improving uplink-based positioning performance. 3. Improving SRS resource allocation performance. 4. Providing good communication performance. 5. Providing high reliability. Some embodiments of this disclosure can be used in a variety of applications. Some embodiments of this disclosure are used by chipset suppliers, video system development suppliers, automotive (including cars, trains, trucks, buses, bicycles, motorcycles, helmets, etc.) manufacturers, drone (unmanned aerial vehicle) manufacturers, smartphone manufacturers, communication equipment for public safety purposes, and AR / VR / MR device manufacturers (e.g., for gaming, conferences / seminars, educational purposes). Some embodiments of this disclosure are combinations of "technologies / processes" that can be adopted in video standards to create end products. Some embodiments of this disclosure propose technical mechanisms. At least one solution, method, system, and apparatus proposed in some embodiments of this disclosure can be used in existing and / or new / future standards related to communication systems (e.g., UEs, base stations, and / or communication systems). Compatible products follow at least one solution, method, system, and apparatus proposed in some embodiments of this disclosure. The proposed solutions, methods, systems, and apparatus are widely applicable to UEs, base stations, and / or communication systems. With the implementation of at least one solution, method, system, and apparatus proposed in some embodiments of this disclosure, at least one modification to the probe reference signal (SRS) resource allocation method and apparatus is considered to achieve standardization.

[0076] Figure 9 This is an example of a computing device 1100 according to an embodiment of this disclosure. Any suitable computing device can be used to perform the operations described herein. For example, Figure 9 This demonstrates that it can be implemented using any appropriately configured hardware and / or software. Figures 1 to 8 Examples of computing devices 1100 in some embodiments are provided. In some embodiments, computing device 1100 may include processor 1112, processor 1112 being communicatively coupled to memory 1114 and executing computer-executable program code and / or accessing information stored in memory 1114. Processor 1112 may include a microprocessor, application-specific integrated circuit (ASIC), state machine, or other processing device. Processor 1112 may include any of a plurality of processing devices, including one processing device. Such a processor may include a computer-readable medium storing instructions or being able to communicate with a computer-readable medium storing instructions, which, when executed by processor 1112, cause the processor to perform the operations described herein.

[0077] Memory 1114 may contain any suitable non-transitory computer-readable medium. Computer-readable media may include any electronic, optical, magnetic, or other storage device capable of providing computer-readable instructions or other program code to a processor. Non-limiting examples of computer-readable media include disks, memory chips, read-only memory (ROM), random access memory (RAM), application-specific integrated circuits (ASICs), configured processors, optical memory, magnetic tape or other magnetic memory, or any other medium from which a computer processor can read instructions. These instructions may include processor-specific instructions generated by a compiler and / or interpreter from code written in any suitable computer programming language, including, for example, C, C++, C#, Visual Basic, Java, Python, Perl, JavaScript, and ActionScript.

[0078] The computing device 1100 may also include a bus 1116. The bus 1116 may communicatively couple one or more components of the computing device 1100. The computing device 1100 may also include multiple external or internal devices, such as input or output devices. For example, the computing device 1100 is shown having an input / output (“I / O”) interface 1118 that can receive input from one or more input devices 1120 or provide output to one or more output devices 1122. One or more input devices 1120 and one or more output devices 1122 may be communicatively coupled to the I / O interface 1118. The communicative coupling may be implemented in any suitable manner (e.g., via printed circuit board connection, via cable connection, via wireless communication, etc.). Non-limiting examples of the input device 1120 include a touchscreen (e.g., one or more cameras for imaging a touch area or a pressure sensor for detecting pressure changes caused by a touch), a mouse, a keyboard, or any other device that can be used to generate input events in response to physical actions of a user of the computing device. Non-limiting examples of output device 1122 include liquid crystal display (LCD), external monitor, speaker, or any other device that can be used to display or otherwise present the output generated by the computing device.

[0079] The computing device 1100 can execute program code that configures the processor 1112 to execute the above-mentioned... Figures 1 to 8 Some embodiments describe one or more operations. The program code may reside in memory 1114 or any suitable computer-readable medium and may be executed by processor 1112 or any other suitable processor.

[0080] The computing device 1100 may also include at least one network interface device 1124. The network interface device 1124 may include any device or group of devices suitable for establishing wired or wireless data connections with one or more data networks 1128. Non-limiting examples of the network interface device 1124 include Ethernet adapters, modems, etc. The computing device 1100 may transmit messages in the form of electronic or optical signals via the network interface device 1124.

[0081] Figure 10 This is a block diagram of an example communication system 1200 according to an embodiment of the present disclosure. The embodiments described herein can be implemented in the communication system 1200 using any appropriately configured hardware and / or software. Figure 10 A communication system 1200 is shown, which includes at least a radio frequency (RF) circuit 1210, a baseband circuit 1220, an application circuit 1230, a memory / storage device 1240, a display 1250, a camera 1260, a sensor 1270, and an input / output (I / O) interface 1280, all of which are coupled to each other as shown.

[0082] Application circuitry 1230 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose processors and special-purpose processors (e.g., graphics processors, application processors). The processor may be coupled to memory / reservoir and used to execute instructions stored in memory / reservoir to enable the running of various applications and / or operating systems on the system. Communication system 1200 may execute program code that configures application circuitry 1230 to perform the above-described operations. Figures 1 to 8 One or more operations are described in some embodiments. The program code may reside in application circuit 1230 or any suitable computer-readable medium and may be executed by application circuit 1230 or any other suitable processor.

[0083] The baseband circuit 1220 may include, for example, but not limited to, circuitry of one or more single-core or multi-core processors. The processor may include a baseband processor. The baseband circuitry can handle various wireless control functions that enable communication with one or more wireless networks via RF circuitry. Wireless control functions may include, but are not limited to, signal modulation, encoding, decoding, and wireless frequency shifting. In some embodiments, the baseband circuitry can provide communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry can support communication with the Evolved Universal Terrestrial Radio Access Network (EUTRAN) and / or other wireless metropolitan area networks (WMAN), wireless local area networks (WLAN), and wireless personal area networks (WPAN). Embodiments of the baseband circuitry used to support wireless communication with multiple wireless protocols may be referred to as multimode baseband circuitry.

[0084] In various embodiments, baseband circuit 1220 may include circuitry that operates with a signal not strictly considered to be at a baseband frequency. For example, in some embodiments, the baseband circuitry may include circuitry that operates with a signal having an intermediate frequency (IF), which is between the baseband frequency and the radio frequency (RF). RF circuitry 1210 may enable communication with a wireless network using modulated electromagnetic radiation via a non-solid-state medium. In various embodiments, RF circuitry may include switches, filters, amplifiers, etc., to facilitate communication with a wireless network. In various embodiments, RF circuitry 1210 may include circuitry that operates with a signal not strictly considered to be at the radio frequency (RF). For example, in some embodiments, RF circuitry may include circuitry that operates with a signal having an intermediate frequency (IF), which is between the baseband frequency and the RF frequency.

[0085] In various embodiments, the above combination Figures 1 to 8The transmitter circuitry, control circuitry, or receiver circuitry discussed in some embodiments may be wholly or partially embodied in one or more of the radio frequency circuitry, baseband circuitry, and / or application circuitry. As used herein, “circuit” may refer to an application-specific integrated circuit (ASIC), electronic circuitry, a processor (shared, dedicated, or grouped) and / or memory (shared, dedicated, or grouped) executing one or more software or firmware programs, combinational logic circuitry, and / or other suitable hardware components that provide the described functionality. In some embodiments, electronic device circuitry may be implemented in one or more software or firmware modules, or the functionality associated with the circuitry may be implemented by one or more software or firmware modules. In some embodiments, some or all of the components of the baseband circuitry, application circuitry, or memory / storage may be implemented together on a system on a chip (SOC). Memory / storage 1240 may be used to load and store data and / or instructions, for example, for a system. The memory / storage of one embodiment may include any combination of suitable volatile memory (e.g., dynamic random access memory (DRAM)) and / or non-volatile memory (e.g., flash memory).

[0086] In various embodiments, I / O interface 1280 may include one or more user interfaces designed to allow user interaction with the system and / or peripheral interface designed to allow peripheral components to interact with the system. User interfaces may include, but are not limited to, physical keyboards or keypads, touchpads, speakers, microphones, etc. Peripheral interface may include, but are not limited to, non-volatile memory ports, universal serial bus (USB) ports, audio jacks, and power interfaces. In various embodiments, sensor 1270 may include one or more sensing devices to determine environmental conditions and / or location information relevant to the system. In some embodiments, sensors may include, but are not limited to, gyroscope sensors, accelerometers, proximity sensors, ambient light sensors, and positioning units. Positioning units may also be part of or interact with baseband circuitry and / or RF circuitry to communicate with components of positioning networks such as Global Positioning System (GPS) satellites.

[0087] In various embodiments, display 1250 may include displays such as liquid crystal displays and touchscreen displays. In various embodiments, communication system 1200 may be a mobile computing device, such as, but not limited to, laptops, tablets, netbooks, ultrabooks, smartphones, AR / VR glasses, etc. In various embodiments, the system may have more or fewer components or different architectures. Where appropriate, the methods described herein can be implemented as computer programs. Computer programs may be stored on storage media, such as non-transitory storage media.

[0088] Those skilled in the art will understand that the various units, algorithms, and steps described and disclosed in the embodiments of this disclosure can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions operate on hardware or software depends on the application conditions and design requirements of the technical solution. Those skilled in the art can use different methods to implement functions for each specific application, and such implementation should not exceed the scope of this disclosure. Those skilled in the art will understand that since the working processes of the above-described systems, devices, and units are basically the same, they can refer to the working processes of the systems, devices, and units in the above embodiments. For ease of description and simplicity, these working processes will not be described in detail.

[0089] It is understood that the systems, devices, and methods disclosed in the embodiments of this disclosure can be implemented in other ways. The above embodiments are merely exemplary. The division of units is based solely on logical function, and other divisions may exist in the implementation. Multiple units or components may be combined or integrated in another system. It is also possible to omit or skip certain features. On the other hand, the mutual coupling, direct coupling, or communication coupling shown or discussed operates indirectly or communicatively through some ports, devices, or units in an electrical, mechanical, or various other form.

[0090] For the purposes of explanation, the units used as separate components may be physically separate or not. The shown units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all units may be used depending on the purpose of the embodiment. Furthermore, the functional units in each embodiment may be integrated into a single processing unit, physically independent, or integrated into a single processing unit having two or more units.

[0091] When software functional units are implemented, used, and sold as products, they can be stored in a readable storage medium within a computer. Based on this understanding, the technical solutions proposed in this disclosure can be implemented essentially or partially in the form of a software product. Alternatively, a portion of the technical solution that is beneficial to the prior art can be implemented as a software product. The software product in the computer is stored in a storage medium and includes multiple commands for a computing device (e.g., a personal computer, server, or network device) to execute all or part of the steps disclosed in the embodiments of this disclosure. The storage medium includes a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other various media capable of storing program code.

[0092] While this disclosure has been described in conjunction with what are considered to be the most practical and preferred embodiments, it should be understood that this disclosure is not limited to the disclosed embodiments, but is intended to cover various arrangements made without departing from the broadest interpretation of the appended claims.

Claims

1. A method for allocating Sounding Reference Signals (SRS) resources performed by a User Equipment (UE), comprising: The base station is configured with a first uplink (UL) carrier and a second UL carrier; as well as The base station instructs the first SRS resource in the first UL carrier and the second SRS resource in the second UL carrier to aggregate with bandwidth.

2. The method according to claim 1, wherein, The first SRS resource is linked or associated with the second SRS resource for bandwidth aggregation.

3. The method according to claim 2, wherein, The first SRS resource is in the first SRS resource set in the first UL carrier, and the second SRS resource is in the second SRS resource set in the second UL carrier.

4. The method according to claim 3, wherein, The first SRS resource set is linked or associated with the second SRS resource set for bandwidth aggregation.

5. The method according to any one of claims 1 to 4, wherein, The symbol position of the first SRS resource is the same as the symbol position of the second SRS resource.

6. The method according to any one of claims 1 to 5, further comprising being requested via signaling to send the first SRS resource and the second SRS resource using the same timing advance (TA) value, wherein, The signaling includes Downlink Control Information (DCI) or Media Access Control (MAC) Control Element (CE) activation commands.

7. The method of claim 6, further comprising calculating the transmit (TX) power of the first SRS resource and the TX power of the second SRS resource such that the TX power of each subcarrier on the first SRS resource is the same as the TX power of each subcarrier on the second SRS resource.

8. A method for allocating Sounding Reference Signal (SRS) resources by a base station, comprising: Configure a first uplink (UL) carrier and a second UL carrier to the user equipment (UE); as well as Instruct the UE to aggregate the first SRS resources in the first UL carrier and the second SRS resources in the second UL carrier with bandwidth.

9. The method according to claim 8, wherein, The first SRS resource is linked or associated with the second SRS resource for bandwidth aggregation.

10. The method according to claim 9, wherein, The first SRS resource is in the first SRS resource set in the first UL carrier, and the second SRS resource is in the second SRS resource set in the second UL carrier.

11. The method according to claim 10, wherein, The first SRS resource set is linked or associated with the second SRS resource set for bandwidth aggregation.

12. The method according to any one of claims 8 to 11, wherein, The symbol position of the first SRS resource is the same as the symbol position of the second SRS resource.

13. The method according to any one of claims 8 to 12, further comprising requesting the UE via signaling to transmit the first SRS resource and the second SRS resource using the same timing advance (TA) value, wherein, The signaling includes Downlink Control Information (DCI) or Media Access Control (MAC) Control Element (CE) activation commands.

14. A user equipment (UE), comprising: Memory; transceiver; as well as A processor coupled to the memory and the transceiver; The UE is used to perform the method according to any one of claims 1 to 7.

15. A base station, comprising: Memory; transceiver; as well as A processor coupled to the memory and the transceiver; The base station is used to perform the method according to any one of claims 8 to 13.

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