Timeline-based Transmission of Sounding Reference Signal (SRS) Resources

Abstract

In summary, various aspects of the present disclosure relate to wireless communications. In some aspects, a mobile station may receive a medium access control (MAC) control element (MAC CE) indicating a sounding reference signal (SRS) resource configuration associated with the MAC CE. The mobile station may receive downlink control information (DCI) indicating a DCI configuration associated with the SRS resource. The mobile station may selectively transmit SRS information associated with the SRS resource based at least in part on a time of receipt of the MAC CE. Numerous other aspects are provided.

Description

Technical Field

[0001]

[0006] Generally speaking, aspects of the present disclosure relate to wireless communications, and aspects of the present disclosure relate to techniques and apparatus for timeline-based transmission of sounding reference signal (SRS) resources. Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0003] A wireless network may include several base stations (BSs) that can support communications for several user equipment (UEs). User equipment (UEs) can communicate with a base station (BS) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, and the like.

[0004] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at a city, country, region, and even global level. New Radio (NR), which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards that use orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0005] In some aspects, a method of wireless communication performed by a mobile station includes: receiving, by the mobile station, a medium access control (MAC) control element (MAC CE) configuration indicating a sounding reference signal (SRS) resource; receiving, by the mobile station, downlink control information (DCI) configuration indicating a DCI configuration associated with the SRS resource; and selectively sending, by the mobile station, SRS information associated with the SRS resource based at least in part on a reception time of the MAC CE.

[0006] In some aspects, a mobile station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive a MAC CE indicating a MAC CE configuration associated with an SRS resource; receive a DCI indicating a DCI configuration associated with the SRS resource; and selectively send SRS information associated with the SRS resource based at least in part on a reception time of the MAC CE.

[0007] In some aspects, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a mobile station, cause the mobile station to: receive a MAC CE indicating a MAC CE configuration associated with an SRS resource; receive a DCI indicating a DCI configuration associated with the SRS resource; and selectively send SRS information associated with the SRS resource based at least in part on a reception time of the MAC CE.

[0008] In some aspects, an apparatus for wireless communication includes: a unit for receiving a MAC CE indicating a MAC CE configuration associated with an SRS resource; a unit for receiving a DCI indicating a DCI configuration associated with the SRS resource; and a unit for selectively sending SRS information associated with the SRS resource based at least in part on a reception time of the MAC CE.

[0009] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, mobile stations, wireless communication devices, and / or processing systems as fully described herein with reference to and as illustrated in the accompanying drawings and description.

[0010] In order that the specific embodiments below may be better understood, the features and technical advantages of the examples according to the present disclosure have been summarized quite broadly above. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as a basis for modifying or designing other structures for the same purpose of performing the present disclosure. Such equivalent constructions do not depart from the scope of protection of the appended claims. When the following description is considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (with respect to their organization and method of operation), together with the associated advantages, will be better understood. Each of the figures in the drawings is provided for illustrative and descriptive purposes and is not intended to be a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to fully understand the above-mentioned features of the present disclosure, a more detailed description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0012] Figure 1is a diagram illustrating an example of a wireless network in accordance with various aspects of the present disclosure.

[0013] Figure 2 is a diagram illustrating an example of a base station communicating with a UE in a wireless network according to various aspects of the present disclosure.

[0014] Figure 3 is a diagram illustrating examples associated with timeline-based transmission of SRS resources according to various aspects of the present disclosure.

[0015] Figure 4 is a diagram illustrating examples associated with timeline-based transmission of SRS resources according to various aspects of the present disclosure.

[0016] Figures 5A-5B is a diagram illustrating examples associated with timeline-based transmission of SRS resources according to various aspects of the present disclosure.

[0017] Figure 6 is a diagram illustrating examples associated with timeline-based transmission of SRS resources according to various aspects of the present disclosure.

[0018] Figure 7 is a diagram illustrating examples associated with timeline-based transmission of SRS resources according to various aspects of the present disclosure.

[0019] Figure 8 is a diagram illustrating example procedures associated with timeline-based transmission of SRS resources in accordance with various aspects of the present disclosure.

[0020] Figure 9 is a diagram illustrating example apparatus associated with timeline-based transmission of SRS resources in accordance with various aspects of the present disclosure. DETAILED DESCRIPTION

[0021] The following describes various aspects of the present disclosure in more detail with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. More specifically, these aspects are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether that aspect is implemented independently of any other aspect of the present disclosure or is implemented in combination with any other aspect. For example, a device can be implemented or a method can be implemented using any number of aspects set forth herein. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functions, or structures and functions in addition to or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0022] Several aspects of telecommunications systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements") and illustrated in the accompanying drawings. These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0023] It should be noted that while various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs beyond 5G (e.g., 6G).

[0024] Figure 1is a diagram illustrating an example of a wireless network 100 according to various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, among other examples. The wireless network 100 may include several base stations 110 (illustrated as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of a BS and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.

[0025] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS 110a may be a macro BS for macrocell 102a, BS 110b may be a pico BS for picocell 102b, and BS 110c may be a femto BS for femtocell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB," "base station," "NR BS," "gNB," "TRP," "AP," "Node B," "5G NB," and "cell" may be used interchangeably herein.

[0026] In some aspects, cells may not necessarily be stationary, and the geographic area of a cell may move depending on the location of a mobile BS. In some aspects, BSs may interconnect with each other and / or with one or more other BSs or network nodes (not shown) in wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections or virtual networks) using any suitable transport network.

[0027] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , relay BS 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, relay base station, relay, or the like.

[0028] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS may have a higher transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0029] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other indirectly, for example, directly or via a wireless backhaul or a wired backhaul.

[0030] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), an in-vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0031] Some UEs may be considered machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, and the like that can communicate with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node may provide connectivity to or from a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included within a housing that houses components of UE 120 (e.g., a processor component and / or a memory component, etc.). In some aspects, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0032] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RATs can also be referred to as radio technologies, air interfaces, etc. Frequencies can also be referred to as carriers, frequency channels, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0033] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, the UEs 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), and / or mesh networks. In this case, the UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0034] Devices in wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, bands, channels, and the like based on frequency or wavelength. For example, devices in wireless network 100 can communicate using an operating band having a first frequency range (FR1) (which can span from 410 MHz to 7.125 GHz), and / or can communicate using an operating band having a second frequency range (FR2) (which can span from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as intermediate frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. Similarly, FR2 is often referred to as the "millimeter wave" band, although it is distinct from the extremely high frequency (EHF) band (30 GHz–300 GHz), which is designated as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless explicitly stated otherwise, it should be understood that the term "sub-6 GHz," etc., if used herein, can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the term "millimeter wave" or the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0035] As pointed out above, Figure 1 is provided as an example. Other examples may differ from those described in relation to Figure 1 Examples described.

[0036] Figure 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100 in accordance with various aspects of the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general, T ≥ 1 and R ≥ 1.

[0037] At base station 110, transmit processor 220 may receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or modulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). A transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process the output sample stream (e.g., convert to analog, amplify, filter, and frequency upconvert) to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0038] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may also process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, etc. In some aspects, one or more components of the UE 120 may be included in the housing 284.

[0039] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0040] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator of the UE 120 (e.g., the modulator / demodulator 254) may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any method described herein (e.g., as described with reference to FIG. Figure 3-9 description).

[0041] At base station 110, uplink signals from UE 120 and other UEs may be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide decoded data to a data sink 239 and decoded control information to controller / processor 240. Base station 110 may include a communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include a scheduler 246 to schedule UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator of base station 110 (e.g., modulator / demodulator 232) may be included in a modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any method described herein (e.g., as described with reference to FIG. Figure 3-9 description).

[0042] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components in may perform one or more techniques associated with timeline-based transmission of SRS resources, as described in greater detail elsewhere herein. In some aspects, a mobile station as described herein may be, may be included in, or may include a UE 120. Figure 2 For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Figure 8 800 and / or other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communications. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or instruct, e.g., Figure 8 The operations of process 800 and / or other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other examples.

[0043] In some aspects, the mobile station includes: means for receiving a MAC CE indicating a MAC CE configuration associated with an SRS resource; means for receiving a DCI indicating a DCI configuration associated with the SRS resource; or means for selectively transmitting SRS information associated with the SRS resource based at least in part on a time of reception of the MAC CE. In some aspects, the means for the mobile station to perform the operations described herein may include, for example, one or more of the antenna 252, the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the modulator 254, the controller / processor 280, or the memory 282.

[0044] In some aspects, the mobile station includes: a unit for determining that a time interval between a reception time of a MAC CE and a transmission time of SRS information fails to satisfy a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to a DCI configuration based at least in part on the time interval failing to satisfy the threshold time interval.

[0045] In some aspects, the mobile station includes: a unit for determining that a time interval between a reception time of a MAC CE and a transmission time of SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the MAC CE configuration and without regard to the DCI configuration based at least in part on the time interval satisfying the threshold time interval.

[0046] In some aspects, the mobile station includes: a unit for determining that a time interval between a reception time of a MAC CE and a transmission time of SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to a DCI configuration and without regard to the MAC CE configuration based at least in part on the time interval satisfying the threshold time interval.

[0047] In some aspects, the mobile station includes: a unit for determining that a time interval between a reception time of a MAC CE and a transmission time of SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: canceling the transmission of the SRS information based at least in part on the time interval satisfying the threshold time interval.

[0048] In some aspects, the mobile station includes means for storing a MAC CE configuration to apply to a later selective transmission when the reception time of the MAC CE is during the time when the SRS information is transmitted.

[0049] Although Figure 2 The blocks in FIG. 2 are shown as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0050] As pointed out above, Figure 2 is provided as an example. Other examples may differ from those described in relation to Figure 2 Examples described.

[0051] A UE can communicate data with a base station (BS) in a wireless network such as an LTE network or a 5G / NR network. The BS and the UE can use their respective transmission and reception circuits to communicate data. Data communication can include downlink communication from the BS to the UE and uplink communication from the UE to the BS.

[0052] Downlink communication may include control information received by the UE via, for example, medium access control (MAC) signaling, downlink control information (DCI) signaling, or a combination thereof. MAC signaling may include a MAC control element (MAC CE) to activate or deactivate a sounding reference signal (SRS) resource, which is used by the UE to perform, for example, antenna switching operations, codebook-based operations, non-codebook-based operations, beam management operations, etc. The DCI signaling may include information for triggering the UE to send selected SRS resources (e.g., SRS information) to the BS. In one example, the selected SRS resources may include currently (e.g., real-time) activated SRS resources. Based on the received SRS, the BS may estimate a quality metric associated with the uplink channel used by the UE to send the SRS information. As used herein, "sending SRS resources" is synonymous with "sending SRS on SRS resources."

[0053] In some cases, a DCI (which includes information for triggering the UE to transmit SRS information) may also include an SRS request indicator (SRI) for reconfiguring SRS resources. For example, a DCI associated with codebook-based operation and / or non-codebook-based operation may include an SRI that activates SRS resources previously deactivated by a MAC CE and / or deactivates SRS resources previously activated by a MAC CE. In such a case, the UE may not be able to fully determine whether a given SRS resource activated by the DCI and previously deactivated by the MAC CE is to be considered as a currently activated SRS resource that should be sent to the BS. Similarly, the UE may not be able to fully determine whether a given SRS resource deactivated by the DCI and previously activated by the MAC CE is to be considered as a currently activated SRS resource that should be sent to the BS. In some cases, this ambiguity may be based at least in part on the delay associated with processing MAC message transmission. For example, MAC message transmission may be associated with a delay of approximately 3 ms, so if the DCI and MAC CE conflict with each other, it may not be clear how the UE should process DCI received within 3 ms of the MAC CE.

[0054] In the case where it is not possible to fully determine whether a given SRS resource is regarded as a currently activated SRS resource that should be sent to the BS, the UE may erroneously send the given SRS resource when the given SRS resource should not be regarded as a currently activated SRS resource, and / or the UE may erroneously fail to send the given SRS resource when the given SRS resource should be regarded as a currently activated SRS resource. The UE may have to retransmit the SRS resource to correct the erroneous failure to send the given SRS resource. Error transmission and corrective retransmission may result in inefficient utilization of network resources (e.g., bandwidth, subchannels, etc.) and UE resources (e.g., processing quantity, memory utilization, power consumption, etc.). The above errors may also introduce delays in the BS receiving error-free SRS information and accurately estimating quality measurements associated with the uplink channel used by the UE. As a result, data communication between the BS and the UE may experience interruption or cessation.

[0055] Various aspects of the techniques and apparatus described herein may enable a UE to perform timeline-based transmission of SRS resources. In some aspects, as described herein, performing timeline-based transmission of SRS resources may include fully determining whether a given SRS resource is to be considered a currently activated SRS resource that should be sent to a BS. In some aspects, the UE may determine whether a given SRS resource is to be considered a currently activated SRS resource based at least in part on the time of receipt of a MAC CE. Thus, the UE may avoid erroneous transmissions and corrective retransmissions associated with sending a given SRS resource to the BS, thereby achieving efficient utilization of UE resources and network resources. Delays in the BS receiving error-free SRS information and accurately estimating quality measurements associated with the uplink channel used by the UE may also be avoided. In this way, data communication between the UE and the BS may be improved.

[0056] In some aspects, a UE may receive a medium access control (MAC) control element (MAC CE) indicating a sounding reference signal (SRS) resource configuration associated with the MAC CE, receive downlink control information (DCI) indicating a DCI configuration associated with the SRS resource, and selectively send SRS information associated with the SRS resource based at least in part on a reception time of the MAC CE.

[0057] Figure 3-7 are diagrams illustrating examples 300 , 400 , 500 , 600 , and 700 associated with timeline-based transmission of SRS resources according to various aspects of the present disclosure. Figure 3A mobile station (MS) 320 (e.g., UE 120) and a BS 110 are shown communicating data in, for example, an LTE network or a 5G / NR network. The data communication may include downlink communication from the BS 310 to the MS 320 and uplink communication from the MS 320 to the BS 310.

[0058] As indicated by reference numeral 330, BS 310 may send configuration information at the beginning and / or during data communication, and MS 320 may receive configuration information at the beginning and / or during data communication. In some aspects, MS 320 may receive configuration information from a device other than BS 310 (e.g., from another base station). In some aspects, MS 320 may receive configuration information via, for example, a control channel (e.g., a PDCCH) between MS 320 and BS 310. Configuration information may be transmitted via radio resource control (RRC) signaling, medium access control (MAC) signaling, downlink control information (DCI) signaling, or a combination thereof (e.g., an RRC configuration for a set of values for a parameter and a DCI indication of a selected value for the parameter).

[0059] In some aspects, the configuration information may include, for example, an indication of one or more configuration parameters for use by the MS 320 to configure the MS 320 for data communication. For example, as indicated by reference numeral 340, the configuration information may include information associated with configuring the MS 320 to perform timeline-based transmission of SRS resources. As indicated by reference numeral 350, based at least in part on the configuration information, the MS 320 may configure the MS 320 to perform timeline-based transmission of SRS resources.

[0060] In some aspects, the configuration information may include information for enabling the MS 320 to configure the MS 320 with one or more SRS resource sets, each of which includes one or more corresponding SRS resources (e.g., configured SRS resources). The configured SRS resources may be used by the MS 320 to perform, for example, SRS signaling antenna switching operations, codebook-based operations, non-codebook-based operations, beam management operations, and the like.

[0061] As indicated by reference numeral 360, MS 320 may perform timeline-based transmission of SRS resources based at least in part on configuring MS 320 to perform timeline-based transmission of SRS resources. Figure 4 Example 400 shows symbols (e.g., symbol 0, symbol 1, ..., symbol 13) arranged in time slots along an x-axis representing time. In some aspects, the symbols may include the symbols described above with respect to Figure 2The symbol discussed. MS 320 may receive a MAC CE during a time span associated with symbol 1 and may subsequently receive a DCI during a time span associated with symbol 4. The DCI may also include information for triggering MS 320 to aperiodically transmit an SRS resource (e.g., aperiodic SRS information (A-SRS)) selected from the configured SRS resources to BS 310. For example, the DCI may include information for triggering MS 320 to transmit an A-SRS during a time span associated with symbol 11.

[0062] In some aspects, a MAC CE may indicate a MAC CE configuration of a configured SRS resource. In some aspects, the MAC CE configuration may include information for activating or deactivating a given SRS resource from the configured SRS resources. A subsequently received DCI may include information (e.g., an SRI) indicating a DCI configuration of the configured SRS resource. In some aspects, the DCI configuration may include information for reconfiguring the SRS resource (such that the DCI configuration may activate a given SRS resource that was previously deactivated by the MAC CE configuration) and / or may include information for deactivating a given SRS resource that was previously activated by the MAC CE configuration.

[0063] For example, in the event that a MAC CE configures deactivation of a given SRS resource and a subsequently received DCI configures activation of the given SRS resource, the configuration information may enable the MS 320 to configure the MS 320 to determine whether the given resource is to be considered a currently activated SRS resource that should be sent to the BS in an A-SRS. In some aspects, the configuration information may enable the MS 320 to determine whether the given resource is to be considered a currently activated SRS resource based at least in part on a time of reception of the MAC CE.

[0064] For example, the MS 320 may determine whether the time interval between the time of receiving the MAC CE and the time of transmitting the A-SRS fails to meet a threshold time interval (e.g., the duration of the time interval is less than the duration of the threshold time interval). In some aspects, the duration of the threshold time interval may be associated with the duration for the MS 320 to process and / or implement the MAC CE configuration (e.g., activation and / or deactivation) of the configured SRS resources. In some aspects, the threshold time interval may be configured by the network via RRC signaling. In some aspects, the duration of the threshold time interval may be, for example, 3 milliseconds.

[0065] When the time interval fails to meet the threshold time interval, MS 320 may not have sufficient time to fully process and / or implement the MAC CE configuration for the configured SRS resource. For example, when the time interval fails to meet the threshold level, MS 320 may not be able to determine that the MAC CE configuration has deactivated the given SRS resource. Therefore, MS 320 may determine, based at least in part on the DCI configuration, that the given SRS resource is to be treated as a currently activated resource to be sent to BS 310 in an A-SRS. In this case, MS 320 may send the given SRS resource in an A-SRS. In other words, MS 320 may send the A-SRS according to the DCI configuration.

[0066] When MS 320 determines that the time interval between the time of receipt of the MAC CE and the time of transmitting the A-SRS satisfies a threshold time interval (e.g., the duration of the time interval is equal to or greater than the duration of the threshold time interval), MS 320 may have sufficient time to fully process and / or implement the MAC CE configuration for the configured SRS resource. For example, when the time interval satisfies the threshold level, MS 320 may sufficiently determine that the MAC CE configuration has deactivated the given SRS resource. Thus, MS 320 may determine, based at least in part on the MAC CE configuration, that the given SRS resource is to be treated as a currently deactivated resource that will not be transmitted in an A-SRS to BS 310. In this case, MS 320 may not transmit the given SRS resource in an A-SRS. In other words, MS 320 may ignore activation of the given SRS resource configured by a subsequently received DCI and may transmit the A-SRS according to the MAC CE configuration. In some aspects, the MS 320 may ignore activation of a given SRS resource configured via a subsequently received DCI based at least in part on determining such activation as erroneous due to inconsistency with deactivation of the given SRS resource configured via a MAC CE.

[0067] Alternatively, when the time interval satisfies the threshold level, the MS 320 may determine, based at least in part on the DCI configuration, that a given SRS resource is to be treated as a currently activated resource to be sent in an A-SRS to the BS 310. In this case, the MS 320 may send the given SRS resource in an A-SRS. In other words, the MS 320 may ignore the deactivation of the given SRS resource by the MAC CE configuration and may send the A-SRS according to a subsequently received DCI configuration. In some aspects, the MS 320 may ignore the deactivation of the given SRS resource by the MAC CE configuration based at least in part on determining such deactivation as a previous configuration to be modified according to a subsequently (e.g., more recently) received DCI configuration.

[0068] As an example, the above description of the case where a MAC CE configuration deactivates a given SRS resource and a subsequently received DCI configuration activates the given SRS resource is provided. The present disclosure contemplates similar descriptions of the case where, for example, a MAC CE configuration activates a given SRS resource and a subsequently received DCI configuration deactivates the given SRS resource.

[0069] and Figure 4 similar, Figure 5A , symbols (e.g., symbol 0, symbol 1, ..., symbol 13) are arranged in time slots along an x-axis representing time. In some aspects, as Figure 5A As shown, MS 320 may receive a MAC CE after receiving the DCI. For example, MS 320 may receive the DCI during a time span associated with symbol 4 and may subsequently receive a MAC CE during a time span associated with symbol 6. The DCI may also include information for triggering MS 320 to aperiodically transmit an A-SRS during a time span associated with symbol 11.

[0070] In this case, the MS 320 may determine that the subsequently received MAC CE configuration has disabled the transmission of the A-SRS triggered by the DCI. Therefore, when the MS 320 determines that the time interval between the time of receiving the MAC CE and the time of transmitting the A-SRS satisfies the threshold time interval, the MS 320 may cancel the transmission of the A-SRS based at least in part on receiving the MAC CE after receiving the DCI and / or at least in part on the time interval satisfying the threshold time interval (e.g., Figure 5A (as indicated by the X in the figure).

[0071] Alternatively, when the MS 320 determines that the time interval between the reception time of the MAC CE and the time to transmit the A-SRS fails to meet the threshold time interval, the MS 320 may not have sufficient time to fully process and / or implement the MAC CE configuration. Therefore, the MS 320 may transmit the A-SRS according to the DCI configuration. In some aspects, the DCI configuration may be associated with a previous MAC CE configuration based at least in part on a previously received MAC CE. In some aspects, the DCI configuration may be the same as the previous MAC CE configuration, for example, when the DCI configuration is consistent with the previous MAC CE configuration (e.g., the DCI configuration does not deactivate SRS resources previously activated by the previous MAC CE configuration, and / or the DCI configuration does not activate SRS resources previously deactivated by the previous MAC CE configuration).

[0072] like Figure 5BAs shown, MS 320 may receive MAC CE after receiving DCI and after sending A-SRS. Figure 5B As shown, MS 320 may receive DCI during the time span associated with symbol 4, may send A-SRS (triggered by the DCI) during the time interval associated with symbol 11, and may subsequently receive MAC CE during the time span associated with symbol 13.

[0073] In this case, the MS 320 may transmit the A-SRS according to the DCI configuration. In some aspects, the DCI configuration may be associated with a previous MAC CE configuration based at least in part on a previously received MAC CE. In some aspects, the DCI configuration may be the same as the previous MAC CE configuration, for example, when the DCI configuration is consistent with the previous MAC CE configuration (e.g., the DCI configuration does not deactivate SRS resources previously activated by the previous MAC CE configuration, and / or the DCI configuration does not activate SRS resources previously deactivated by the previous MAC CE configuration). In some aspects, the MS 320 may store the MAC CE configuration received during the time span associated with symbol 13 for processing and / or implementation associated with another (e.g., future) transmission of an A-SRS.

[0074] Figure 6 , symbols (e.g., symbol 0, symbol 1, ..., symbol 13) are arranged in time slots along an x-axis representing time. In some aspects, as Figure 6 As shown, MS 320 may receive a MAC CE during transmission of an A-SRS, which may occur over multiple symbols (e.g., symbols 10-13). For example, MS 320 may receive DCI during a time span associated with symbol 4, may begin transmitting an A-SRS (triggered by the DCI) during a time span associated with symbol 10, and may receive a MAC CE during a time span associated with symbol 11.

[0075] In this case, the MS 320 may ignore the MAC CE received during the transmission of the A-SRS and may transmit the A-SRS according to the DCI configuration. In some aspects, the MS 320 may ignore the reception of the MAC CE during the transmission of the A-SRS based at least in part on determining that such reception of the MAC CE during the transmission of the A-SRS is an erroneous reception during the transmission of the A-SRS. In some aspects, the DCI configuration may be associated with a previous MAC CE configuration based at least in part on a previously received MAC CE. In some aspects, the DCI configuration may be the same as the previous MAC CE configuration, for example, when the DCI configuration is consistent with the previous MAC CE configuration (e.g., the DCI configuration does not deactivate SRS resources previously activated by the previous MAC CE configuration, and / or the DCI configuration does not activate SRS resources previously deactivated by the previous MAC CE configuration).

[0076] Alternatively, instead of ignoring the MAC CE received during the transmission of the A-SRS and continuing to transmit the A-SRS according to the DCI configuration, the MS 320 may store the MAC CE configuration included in the MAC CE received during the A-SRS transmission for use in processing and / or implementation associated with another (e.g., future) A-SRS transmission. For example, the MS 320 may apply the MAC CE configuration to future A-SRS transmissions.

[0077] Figure 7 Example 700 shows symbols arranged in time slots along an x-axis representing time (e.g., symbol 0, symbol 1, ..., symbol 13). MS 320 may receive a MAC CE during a time span associated with symbol 1 and may subsequently receive a DCI during a time span associated with symbol 5. The DCI may also include information for triggering MS 320 to transmit an A-SRS to BS 310 during a time span associated with symbol 11.

[0078] In some aspects, the MAC CE may indicate a MAC CE slot offset and the DCI may indicate a DCI slot offset. In some aspects, the slot offset may be associated with the transmission of the A-SRS. For example, the slot offset may indicate the number of symbols that the MS 320 should wait after receiving the DCI and before transmitting the A-SRS. Figure 7 , the slot offset may indicate that the MS 320 is to wait for the time span associated with symbols 6-10 after receiving the DCI during the time span associated with symbol 5 and before sending the A-SRS during the time span associated with symbol 11.

[0079] In some aspects, the DCI slot offset can be different from the MAC CE slot offset. In this case, the MS 320 can determine whether the time interval between the reception time of the MAC CE and the reception time of the DCI fails to meet a threshold offset interval (e.g., the duration of the time interval is less than the duration of the threshold offset interval). In some aspects, the threshold offset interval can be configured by the network via RRC signaling. In some aspects, the duration of the threshold offset interval can be, for example, 3 milliseconds.

[0080] When the MS 320 determines that the time interval between the reception time of the MAC CE and the reception time of the DCI fails to meet the threshold offset interval, the MS 320 may not have sufficient time to process and / or implement the MAC CE slot offset and may transmit the A-SRS according to the DCI slot offset. In some aspects, the DCI slot offset may be associated with a previous MAC CE slot offset based at least in part on a previously received MAC CE. In some aspects, the DCI slot offset may be the same as the previous MAC CE slot offset, for example, when the DCI slot offset coincides with the previous MAC CE slot offset (e.g., the DCI slot offset and the previous MAC CE slot offset indicate the same number of symbols for the MS 320 to wait after receiving the DCI and before transmitting the A-SRS). In some aspects, the MS 320 may store the MAC CE slot offset for processing and / or implementation associated with another (e.g., future) transmission of an A-SRS. In some aspects, the MS 320 may transmit the A-SRS according to a slot offset previously configured by the network via, for example, RRC signaling.

[0081] When the MS 320 determines that the time interval between the reception time of the MAC CE and the reception time of the DCI satisfies the threshold offset interval (e.g., the duration of the time interval is equal to or greater than the duration of the threshold offset interval), the MS 320 may have sufficient time to process and / or implement the MAC CE timeslot offset and may send the A-SRS according to the MAC CE timeslot offset.

[0082] The MS 320 may perform timeline-based transmission of SRS resources (e.g., A-SRS), as discussed above. In some aspects, the MS 320 may utilize included transmit circuitry to transmit data (e.g., A-SRS, etc.) to the BS 310, and may utilize included receive circuitry to receive data (e.g., MAC CE, DCI, etc.) from the BS 310. The transmit circuitry may include, for example, one or more components (e.g., transmit processor 264, TX MIMO processor 266, modulator 254, and / or antenna 252), and the receive circuitry may include, for example, one or more components (e.g., receive processor 258, MIMO detector 256, demodulator 254, and / or antenna 252), as discussed above with respect to Figure 2 discussed.

[0083] In some aspects, a given aperiodic SRS resource set (e.g., SRS information) may be transmitted in the (t+1)th available time slot, counted from a reference time slot, where t may be indicated by DCI and / or RRC (if a value for t is configured in RRC), and candidate values for t include at least 0. In some aspects, the reference time slot may be the time slot in which the DCI is received (e.g., the time slot with the triggering DCI). Additionally or alternatively, the reference time slot may be the time slot indicated by a conventional trigger offset. In some aspects, the available time slots may be determined at least in part based on the processing complexity of the MS 320, and / or a timeline associated with determining available time slots and / or potential coexistence with collision handling, etc. In some aspects, the available time slots may be associated with uplink or flexible symbols for one or more time domain locations of one or more SRS resources in a resource set, and the uplink or flexible symbols may meet minimum timing requirements between the triggering PDCCH and the one or more SRS resources in the resource set.

[0084] In some aspects, the configuration and / or signaling associated with the available time slots may include RRC configuration, DCI signaling, MAC CE signaling, etc. In some aspects, the RRC configuration for each resource set may be based on bandwidth portions. In some aspects, the configuration and / or signaling may indicate one or more RRC configured values for candidate available time slots associated with the transmission of SRS resources. In some aspects, the configuration and / or signaling may include a 1-bit indication in a scheduling DCI (format 0_1, 1_1, 0_2, and / or 1_2) to select a valid uplink time slot (or SRS delay offset) for triggering SRS information (e.g., A-SRS). In some aspects, when the bit field may not exist and / or be disabled, an implicit value (e.g., a first value) configured by the RRC configuration may be used to determine the available time slots.

[0085] In some aspects, the MAC CE may update one or more of the RRC configured values. In some aspects, when the MAC CE updates the available time slots for transmission of the A-SRS (e.g., the MAC CE indicates a first available time slot) and the DCI indicates a different available time slot for transmission of the A-SRS (e.g., a second available time slot), the MS 320 may transmit the A-SRS in accordance with the DCI indication for the different available time slot based at least in part on a determination that a time interval between the reception time of the MAC CE and the reception time of the DCI fails to satisfy a threshold offset interval. In some aspects, the DCI indication for the different available time slot may be associated with a previous MAC CE indication of the available time slot based at least in part on a previously received MAC CE. In some aspects, the DCI indication may be the same as the previous MAC CE indication, e.g., when the DCI indication is consistent with the previous MAC CE indication (e.g., the DCI indication indicates the same available time slot as the previous MAC CE indication).

[0086] In some aspects, when the MAC CE indicates an available time slot for transmission of an A-SRS and the DCI indicates a different available time slot for transmission of the A-SRS, the MS 320 may transmit the A-SRS in accordance with the MAC CE indication of the available time slot based at least in part on determining that a time interval between a reception time of the MAC CE and a reception time of the DCI satisfies a threshold offset interval.

[0087] As discussed herein, by performing timeline-based transmission of SRS resources, the UE can fully determine whether a given SRS resource is to be considered as a currently activated SRS resource that should be sent to the BS in an A-SRS. In some aspects, the UE can determine whether a given SRS resource is to be considered as a currently activated SRS resource based at least in part on the time of reception of the MAC CE. Thus, the UE can avoid erroneous transmissions and corrective retransmissions associated with sending a given SRS resource to the BS, thereby achieving efficient utilization of UE resources and network resources. Delays in the BS receiving error-free A-SRS and accurately estimating the quality of the uplink channel used by the UE can also be avoided. In addition, the UE can fully determine the time slot offset associated with the transmission of the A-SRS. In this way, data communication between the UE and the BS can be improved.

[0088] As pointed out above, Figure 3-7 is provided as an example. Other examples may differ from those described in relation to Figure 3-7 Examples described.

[0089] Figure 8is a diagram illustrating an example process 800 performed, for example, by a mobile station (e.g., MS 320) in accordance with various aspects of the present disclosure. Example process 800 is an example in which a mobile station performs operations associated with timeline-based transmission of sounding reference signal (SRS) resources.

[0090] like Figure 8 As shown, in some aspects, process 800 may include receiving a MAC CE indicating a MAC CE configuration associated with an SRS resource (block 810). For example, a mobile station (e.g., using Figure 9 The receiving component 902 depicted in FIG may receive a MAC CE indicating a MAC CE configuration associated with an SRS resource, as described above.

[0091] like Figure 8 As further shown, in some aspects, process 800 may include receiving a DCI indicating a DCI configuration associated with an SRS resource (block 820). For example, a mobile station (e.g., using Figure 9 The receiving component 902 depicted in FIG can receive a DCI indicating a DCI configuration associated with an SRS resource, as described above.

[0092] like Figure 8 As further shown, in some aspects, process 800 may include selectively transmitting SRS information associated with an SRS resource based at least in part on a time of receipt of a MAC CE (block 830). Figure 9 The transmitting component 904 depicted in FIG can selectively transmit SRS information associated with the SRS resource based at least in part on the reception time of the MAC CE, as described above.

[0093] Process 800 may include additional aspects, such as any single aspect or any combination of the aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0094] In the first aspect, selectively sending SRS information includes sending SRS information according to MAC CE configuration or according to DCI configuration.

[0095] In a second aspect, alone or in combination with the first aspect, the DCI includes an SRS request indicator (SRI) to indicate the DCI configuration.

[0096] In a third aspect, alone or in combination with one or more of the first and second aspects, the MAC CE configuration is associated with deactivating SRS resources.

[0097] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the DCI configuration is associated with activating SRS resources.

[0098] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the DCI configuration is associated with activating SRS resources previously deactivated by a MAC CE configuration.

[0099] In the sixth aspect, alone or in combination with one or more aspects from the first to the fifth aspects, process 800 includes: determining, by the mobile station, that the time interval between the reception time of the MAC CE and the transmission time of the SRS information fails to meet the threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration, at least in part based on the time interval failing to meet the threshold time interval.

[0100] In the seventh aspect, alone or in combination with one or more aspects from the first to the fifth aspects, process 800 includes: determining, by the mobile station, that the time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the MAC CE configuration and without considering the DCI configuration, at least in part based on the time interval satisfying the threshold time interval.

[0101] In the eighth aspect, alone or in combination with one or more aspects from the first to the fifth aspects, process 800 includes: determining, by the mobile station, that the time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration and without considering the MAC CE configuration, at least in part based on the time interval satisfying the threshold time interval.

[0102] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the DCI configuration is associated with activating SRS resources that are subsequently deactivated by a MAC CE configuration.

[0103] In the tenth aspect, alone or in combination with one or more aspects of the first to fifth aspects and the ninth aspect, process 800 includes: determining by the mobile station that the time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: canceling the sending of the SRS information at least partially based on the time interval satisfying the threshold time interval.

[0104] In the eleventh aspect, alone or in combination with one or more aspects from the first to the fifth and the eighth to the tenth aspects, selectively sending SRS information includes: when the reception time of the MAC CE is after the time of sending the SRS information, sending the SRS information according to the DCI configuration.

[0105] In the twelfth aspect, alone or in combination with one or more aspects from the first to the fifth and the eighth to the eleventh aspects, selectively sending SRS information includes: when the reception time of the MAC CE is after the reception time of the DCI, sending the SRS information according to the DCI configuration.

[0106] In the thirteenth aspect, alone or in combination with one or more aspects of the first to fifth aspects and the eighth to twelfth aspects, selectively sending SRS information includes: when the reception time of the MAC CE is during the time of sending the SRS information, sending the SRS information according to the DCI configuration and without considering the MAC CE configuration.

[0107] In the fourteenth aspect, alone or in combination with one or more aspects from the first to the fifth aspects, selectively sending SRS information includes: when the reception time of the MAC CE is during the time of sending the SRS information, sending the SRS information according to the previous MAC CE configuration.

[0108] In a fifteenth aspect, alone or in combination with one or more of the first to fifth aspects, process 800 includes: when the reception time of the MAC CE is during the time of sending SRS information, storing the MAC CE configuration to be applied to later selective transmission.

[0109] In the sixteenth aspect, alone or in combination with one or more aspects of the first to fifteenth aspects, process 800 includes: the MAC CE includes a MAC CE time slot offset associated with selectively sending SRS information, the DCI includes a DCI time slot offset associated with selectively sending SRS information, and the selectively sending SRS information includes: sending the SRS information according to the DCI time slot offset based at least in part on the time interval between the reception time of the MAC CE and the reception time of the DCI failing to meet the threshold offset interval.

[0110] In the seventeenth aspect, alone or in combination with one or more aspects of the first to sixteenth aspects, process 800 includes: the MAC CE includes a MAC CE time slot offset associated with selectively sending SRS information, the DCI includes a DCI time slot offset associated with selectively sending SRS information, and the selectively sending SRS information includes: sending the SRS information according to the previous MAC CE time slot offset based at least in part on the time interval between the reception time of the MAC CE and the reception time of the DCI failing to meet the threshold offset interval.

[0111] In aspect 18, alone or in combination with one or more aspects from aspect 1 to aspect 15, process 800 includes: MAC CE includes a MAC CE slot offset associated with selectively sending SRS information, DCI includes a DCI slot offset associated with selectively sending SRS information, and selectively sending SRS information includes: sending SRS information according to the MACCE slot offset based at least in part on the time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

[0112] In a nineteenth aspect, alone or in combination with one or more of aspects one to seventeen, process 800 includes: a MAC CE including a MAC CE indication of a first available time slot associated with selectively transmitting SRS information, a DCI including a DCI indication of a second available time slot associated with selectively transmitting SRS information, and selectively transmitting the SRS information includes transmitting the SRS information according to the DCI indication of the second available time slot based at least in part on a time interval between a reception time of the MAC CE and a reception time of the DCI failing to meet a threshold interval. In some aspects, the first available time slot and / or the second available time slot may be associated with a next available time slot associated with transmission of the SRS information.

[0113] In a twentieth aspect, alone or in combination with one or more of aspects 1 to 17 and 19, process 800 includes: a MAC CE including a MAC CE indication of a first available time slot associated with selectively transmitting SRS information, a DCI including a second available DCI indication associated with selectively transmitting SRS information, and selectively transmitting the SRS information includes transmitting the SRS information according to a previous MAC CE indication of an available time slot based at least in part on a time interval between a reception time of the MAC CE and a reception time of the DCI failing to meet a threshold interval. In some aspects, the first available time slot and / or the second available time slot may be associated with a next available time slot associated with transmission of the SRS information.

[0114] In a twenty-first aspect, alone or in combination with one or more of aspects 1 to 15 and 18, process 800 includes: a MAC CE including a MAC CE indication of a first available time slot associated with selectively transmitting SRS information, a DCI including a DCI indication of a second available time slot associated with selectively transmitting SRS information, and selectively transmitting the SRS information includes transmitting the SRS information in accordance with the MAC CE indication of the first available time slot based at least in part on a time interval between a reception time of the MAC CE and a reception time of the DCI satisfying a threshold interval. In some aspects, the first available time slot and / or the second available time slot is associated with a next available time slot that may be associated with transmission of the SRS information.

[0115] Although Figure 8 Example blocks of process 800 are shown, but in some aspects process 800 may include Figure 8 The blocks may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be executed in parallel.

[0116] Figure 9 9 is a block diagram of an example apparatus 900 associated with timeline-based transmission of SRS resources. Apparatus 900 may be a mobile station, or a mobile station may include apparatus 900. In some aspects, apparatus 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using receiving component 902 and transmitting component 904. As further shown, apparatus 900 may include a determining component 908, among other examples.

[0117] In some aspects, the apparatus 900 may be configured to perform the Figure 3-7 Additionally or alternatively, the apparatus 900 may be configured to perform one or more of the processes described herein, such as Figure 8 In some aspects, Figure 9 The apparatus 900 and / or one or more components shown in FIG. 1 may include the above-mentioned apparatus 900 and / or one or more components ... Figure 2 Additionally or alternatively, Figure 9 One or more components shown in the above may be combined Figure 2In addition or alternatively, one or more components in the component set may be at least partially implemented as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0118] The receiving component 902 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 906. The receiving component 902 may provide the received communications to one or more other components of the apparatus 900. In some aspects, the receiving component 902 may perform signal processing (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the apparatus 906. In some aspects, the receiving component 902 may include the processing described above in conjunction with Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of a mobile station are described.

[0119] The transmitting component 904 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 906. In some aspects, one or more other components of the apparatus 906 may generate communications and may provide the generated communications to the transmitting component 904 for transmission to the apparatus 906. In some aspects, the transmitting component 906 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and may transmit the processed signals to the apparatus 906. In some aspects, the transmitting component 904 may include the above-described components in conjunction with Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described mobile station. In some aspects, transmit component 904 can be co-located with receive component 902 in a transceiver.

[0120] Receiving component 902 may receive a medium access control (MAC) control element (MAC CE) indicating a sounding reference signal (SRS) resource configuration associated with the MAC CE. Receiving component 902 may receive downlink control information (DCI) indicating a DCI configuration associated with the SRS resource. Transmitting component 904 may selectively transmit SRS information associated with the SRS resource based at least in part on a time of receipt of the MAC CE.

[0121] The determining component 908 can determine that the time interval between the reception time of the MAC CE and the transmission time of the SRS information fails to meet the threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration at least in part based on the time interval failing to meet the threshold time interval.

[0122] The determining component 908 can determine that the time interval between the reception time of the MAC CE and the transmission time of the SRS information meets the threshold time interval, wherein selectively sending the SRS information includes: at least partially based on the time interval meeting the threshold time interval, sending the SRS information according to the MAC CE configuration and without considering the DCI configuration.

[0123] The determining component 908 can determine that the time interval between the reception time of the MAC CE and the transmission time of the SRS information meets the threshold time interval, wherein selectively sending the SRS information includes: at least partially based on the time interval meeting the threshold time interval, sending the SRS information according to the DCI configuration and without considering the MAC CE configuration.

[0124] Determining component 908 can determine that a time interval between a reception time of the MAC CE and a transmission time of the SRS information satisfies a threshold time interval, wherein selectively transmitting the SRS information comprises canceling transmission of the SRS information based at least in part on the time interval satisfying the threshold time interval.

[0125] Determining component 908 can store the MAC CE configuration to be applied to later selective transmissions when the reception time of the MAC CE is during the time when the SRS information is transmitted.

[0126] Figure 9 The number and arrangement of components shown are provided as examples. In practice, there may be Figure 9 The components shown may include additional components, fewer components, different components, or components arranged differently than those shown. Figure 9 Two or more components shown may be implemented in a single component, or Figure 9 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 9 The illustrated set of (one or more) components may perform the operations described as being performed by Figure 9 Another group of components is shown performing one or more functions.

[0127] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0128] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein may be implemented using different forms of hardware, firmware, and / or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, it being understood that software and hardware may be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0129] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0130] Even if the specific combination of feature is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many features in these features can be combined in a manner not specifically recorded in the claims and / or specifically disclosed in the specification. Although each dependent claim listed herein can only directly depend on a claim, the disclosure of various aspects includes the combination of each dependent claim and each other claim in the claim set. As used herein, the phrase of "at least one of" referring to a list of items refers to any combination of those items, including single members. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and with any combination of a plurality of identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).

[0131] None of the elements, actions or instructions used herein should be interpreted as key or necessary, unless clearly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more projects quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects (for example, related projects, unrelated projects, or the combination of related projects and unrelated projects), and can be used interchangeably with "one or more". In the case of only expecting a project, phrase "only one" or similar language is used. In addition, as used herein, the terms "have (has)", "have (have)", "have (having)" etc. are intended to be open terms. In addition, unless otherwise clearly stated, phrase "based on" is intended to mean "at least partially based on". Furthermore, as used herein, the term "or" when used in a series is intended to be inclusive and can be used interchangeably with "and / or" unless expressly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A method of wireless communication performed by a mobile station, comprising: receiving, by the mobile station, a medium access control (MAC) control element (MAC CE) indicating a MAC CE configuration associated with a sounding reference signal (SRS) resource; receiving, by the mobile station, downlink control information (DCI) indicating a DCI configuration associated with the SRS resource; as well as The mobile station selectively transmits SRS information associated with the SRS resource when the configuration associated with the SRS resource indicated by the MAC CE and the DCI conflicts based at least in part on a reception time of the MAC CE.

2. The method according to claim 1, wherein Selectively sending the SRS information includes: sending the SRS information according to the MAC CE configuration or according to the DCI configuration.

3. The method according to claim 1, wherein The DCI includes an SRS request indicator (SRI) to indicate the DCI configuration.

4. The method according to claim 1, wherein The MAC CE configuration is associated with deactivating the SRS resource.

5. The method according to claim 1, wherein The DCI configuration is associated with activating the SRS resource.

6. The method according to claim 1, wherein The DCI configuration is associated with activating the SRS resource previously deactivated by the MAC CE configuration.

7. The method according to claim 1, further comprising: The mobile station determines that a time interval between the reception time of the MAC CE and the transmission time of the SRS information fails to meet a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration, at least in part based on the time interval failing to meet the threshold time interval.

8. The method according to claim 1, further comprising: The mobile station determines that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the MAC CE configuration and without considering the DCI configuration, at least in part based on the time interval satisfying the threshold time interval.

9. The method according to claim 1, further comprising: The mobile station determines that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration and without considering the MAC CE configuration, at least in part based on the time interval satisfying the threshold time interval.

10. The method according to claim 1, wherein The DCI configuration is associated with activating the SRS resource that is subsequently deactivated by the MAC CE configuration.

11. The method according to claim 1 , further comprising: The mobile station determines that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: canceling the transmission of the SRS information based at least in part on the time interval satisfying the threshold time interval.

12. The method according to claim 1, wherein Selectively sending the SRS information includes: when the reception time of the MAC CE is after the time of sending the SRS information, sending the SRS information according to the DCI configuration.

13. The method according to claim 1, wherein Selectively sending the SRS information includes: when the reception time of the MAC CE is after the reception time of the DCI, sending the SRS information according to the DCI configuration.

14. The method according to claim 1, wherein Selectively transmitting the SRS information includes transmitting the SRS information according to the DCI configuration and without considering the MAC CE configuration when the reception time of the MAC CE is during the time of transmitting the SRS information.

15. The method according to claim 1, wherein Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE configuration when the reception time of the MAC CE is during a time for sending the SRS information.

16. The method according to claim 1, further comprising: When the reception time of the MAC CE is during the time of transmitting the SRS information, the MAC CE configuration is stored to be applied to later selective transmission.

17. The method of claim 1, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

18. The method of claim 1, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

19. The method of claim 1, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

20. The method of claim 1, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI indication of the second available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

21. The method of claim 1, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE indication of an available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

22. The method of claim 1, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE indication of the first available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

23. A mobile station for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receiving a medium access control (MAC) control element (MACCE) indicating a MAC CE configuration associated with a sounding reference signal (SRS) resource; receiving downlink control information (DCI) indicating a DCI configuration associated with the SRS resource; as well as Selectively sending SRS information associated with the SRS resource when the configuration associated with the SRS resource indicated by the MAC CE and the DCI conflicts based at least in part on a reception time of the MAC CE.

24. The mobile station according to claim 23, wherein When selectively sending the SRS information, the one or more processors are configured to send the SRS information according to the MAC CE configuration or according to the DCI configuration.

25. The mobile station of claim 23, wherein: The DCI includes an SRS request indicator (SRI) to indicate the DCI configuration.

26. The mobile station of claim 23, wherein: The MAC CE configuration is associated with deactivating the SRS resource.

27. The mobile station of claim 23, wherein: The DCI configuration is associated with activating the SRS resource.

28. The mobile station of claim 23, wherein: The DCI configuration is associated with activating the SRS resource previously deactivated by the MAC CE configuration.

29. The mobile station of claim 23, wherein: The one or more processors are further configured to: Determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information fails to meet a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration, at least in part based on the time interval failing to meet the threshold time interval.

30. The mobile station of claim 23, wherein The one or more processors are further configured to: Determine that the time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: at least partially based on the time interval satisfying the threshold time interval, sending the SRS information according to the MAC CE configuration and without considering the DCI configuration.

31. The mobile station of claim 23, wherein: The one or more processors are further configured to: Determine that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration and without considering the MAC CE configuration, at least in part based on the time interval satisfying the threshold time interval.

32. The mobile station of claim 23, wherein: The DCI configuration is associated with activating the SRS resource that is subsequently deactivated by the MAC CE configuration.

33. The mobile station of claim 23, wherein: The one or more processors are further configured to: Determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively transmitting the SRS information comprises canceling transmission of the SRS information based at least in part on the time interval satisfying the threshold time interval.

34. The mobile station of claim 23, wherein: When selectively transmitting the SRS information, the one or more processors are configured to: transmit the SRS information according to the DCI configuration when the reception time of the MAC CE is after the time of transmitting the SRS information.

35. The mobile station of claim 23, wherein: When selectively sending the SRS information, the one or more processors are configured to: when the reception time of the MAC CE is after the reception time of the DCI, send the SRS information according to the DCI configuration.

36. The mobile station of claim 23, wherein: When selectively sending the SRS information, the one or more processors are configured to: when the reception time of the MAC CE is during the time of sending the SRS information, send the SRS information according to the DCI configuration and without considering the MAC CE configuration.

37. The mobile station of claim 23, wherein: When selectively transmitting the SRS information, the one or more processors are configured to: transmit the SRS information according to a previous MAC CE configuration when the reception time of the MAC CE is during a time when the SRS information is transmitted.

38. The mobile station of claim 23, wherein: The one or more processors are further configured to: When the reception time of the MAC CE is during the time of transmitting the SRS information, the MAC CE configuration is stored to be applied to later selective transmission.

39. The mobile station of claim 23, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

40. The mobile station of claim 23, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

41. The mobile station of claim 23, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

42. The mobile station of claim 23, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI indication of the second available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

43. The mobile station of claim 23, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE indication of an available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

44. The mobile station of claim 23, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE indication of the first available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

45. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: One or more instructions that, when executed by one or more processors of a mobile station, cause the mobile station to: receiving a medium access control (MAC) control element (MACCE) indicating a MAC CE configuration associated with a sounding reference signal (SRS) resource; receiving downlink control information (DCI) indicating a DCI configuration associated with the SRS resource; as well as Selectively sending SRS information associated with the SRS resource when the configuration associated with the SRS resource indicated by the MAC CE and the DCI conflicts based at least in part on a reception time of the MAC CE.

46. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions causing the mobile station to selectively transmit the SRS information cause the mobile station to transmit the SRS information according to the MAC CE configuration or according to the DCI configuration.

47. The non-transitory computer readable medium of claim 45, wherein: The DCI includes an SRS request indicator (SRI) to indicate the DCI configuration.

48. The non-transitory computer readable medium of claim 45, wherein: The MAC CE configuration is associated with deactivating the SRS resource.

49. The non-transitory computer readable medium of claim 45, wherein: The DCI configuration is associated with activating the SRS resource.

50. The non-transitory computer readable medium of claim 45, wherein: The DCI configuration is associated with activating the SRS resource previously deactivated by the MAC CE configuration.

51. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions further cause the mobile station to: Determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information fails to meet a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration, at least in part based on the time interval failing to meet the threshold time interval.

52. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions further cause the mobile station to: Determine that the time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: at least partially based on the time interval satisfying the threshold time interval, sending the SRS information according to the MAC CE configuration and without considering the DCI configuration.

53. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions further cause the mobile station to: Determine that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration and without considering the MAC CE configuration, at least in part based on the time interval satisfying the threshold time interval.

54. The non-transitory computer readable medium of claim 45, wherein: The DCI configuration is associated with activating the SRS resource that is subsequently deactivated by the MAC CE configuration.

55. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions further cause the mobile station to: Determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively transmitting the SRS information comprises canceling transmission of the SRS information based at least in part on the time interval satisfying the threshold time interval.

56. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions causing the mobile station to selectively send the SRS information cause the mobile station to send the SRS information according to the DCI configuration when the reception time of the MAC CE is after the time of sending the SRS information.

57. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions causing the mobile station to selectively send the SRS information cause the mobile station to perform the following operation: when the reception time of the MAC CE is after the reception time of the DCI, sending the SRS information according to the DCI configuration.

58. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions causing the mobile station to selectively send the SRS information cause the mobile station to perform the following operations: when the reception time of the MAC CE is during the time of sending the SRS information, send the SRS information according to the DCI configuration and without considering the MACCE configuration.

59. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions causing the mobile station to selectively transmit the SRS information cause the mobile station to transmit the SRS information according to a previous MAC CE configuration when the reception time of the MAC CE is during a time for transmitting the SRS information.

60. The non-transitory computer readable medium of claim 45, wherein: The one or more instructions further cause the mobile station to: When the reception time of the MAC CE is during the time of transmitting the SRS information, the MAC CE configuration is stored to be applied to later selective transmission.

61. The non-transitory computer-readable medium of claim 45, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

62. The non-transitory computer-readable medium of claim 45, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

63. The non-transitory computer-readable medium of claim 45, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

64. The non-transitory computer-readable medium of claim 45, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI indication of the second available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to meet a threshold offset interval.

65. The non-transitory computer-readable medium of claim 45, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE indication of an available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

66. The non-transitory computer-readable medium of claim 45, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE indication of the first available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

67. An apparatus for wireless communication, comprising: means for receiving a medium access control (MAC) control element (MAC CE) indicating a MAC CE configuration associated with a sounding reference signal (SRS) resource; means for receiving downlink control information (DCI) indicating a DCI configuration associated with the SRS resource; as well as means for selectively transmitting SRS information associated with the SRS resource when a configuration associated with the SRS resource indicated by the MAC CE and the DCI conflicts based at least in part on a reception time of the MAC CE.

68. The apparatus of claim 67, wherein The unit for selectively sending the SRS information includes: a unit for sending the SRS information according to the MAC CE configuration or according to the DCI configuration.

69. The apparatus of claim 67, wherein The DCI includes an SRS request indicator (SRI) to indicate the DCI configuration.

70. The apparatus of claim 67, wherein The MAC CE configuration is associated with deactivating the SRS resource.

71. The apparatus of claim 67, wherein The DCI configuration is associated with activating the SRS resource.

72. The apparatus of claim 67, wherein The DCI configuration is associated with activating the SRS resource previously deactivated by the MAC CE configuration.

73. The apparatus of claim 67, further comprising: A unit for determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information fails to meet a threshold time interval, wherein selectively sending the SRS information includes: sending the SRS information according to the DCI configuration based at least in part on the time interval failing to meet the threshold time interval.

74. The apparatus of claim 67, further comprising: A unit for determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information comprises: sending the SRS information according to the MAC CE configuration and without considering the DCI configuration, at least in part based on the time interval satisfying the threshold time interval.

75. The apparatus of claim 67, further comprising: a unit for determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively sending the SRS information comprises sending the SRS information according to the DCI configuration and without regard to the MAC CE configuration, based at least in part on the time interval satisfying the threshold time interval.

76. The apparatus of claim 67, wherein The DCI configuration is associated with activating the SRS resource that is subsequently deactivated by the MAC CE configuration.

77. The apparatus of claim 67, further comprising: A unit for determining that a time interval between the reception time of the MAC CE and the transmission time of the SRS information satisfies a threshold time interval, wherein selectively transmitting the SRS information comprises canceling the transmission of the SRS information based at least in part on the time interval satisfying the threshold time interval.

78. The apparatus of claim 67, wherein The unit for selectively sending the SRS information includes: a unit for sending the SRS information according to the DCI configuration when the reception time of the MAC CE is after the time of sending the SRS information.

79. The apparatus of claim 67, wherein The unit for selectively sending the SRS information includes: a unit for sending the SRS information according to the DCI configuration when the reception time of the MAC CE is after the reception time of the DCI.

80. The apparatus of claim 67, wherein The unit for selectively transmitting the SRS information includes: a unit for transmitting the SRS information according to the DCI configuration and without considering the MAC CE configuration when the reception time of the MAC CE is during the time of transmitting the SRS information.

81. The apparatus of claim 67, wherein The unit for selectively transmitting the SRS information includes: a unit for transmitting the SRS information according to a previous MAC CE configuration when the reception time of the MAC CE is during the time of transmitting the SRS information.

82. The apparatus of claim 67, further comprising: means for storing the MAC CE configuration to be applied to later selective transmission when the reception time of the MAC CE is during the time of transmitting the SRS information.

83. The apparatus of claim 67, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

84. The apparatus of claim 67, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

85. The apparatus of claim 67, wherein: The MAC CE includes a MAC CE slot offset associated with selectively transmitting the SRS information, The DCI includes a DCI slot offset associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE slot offset based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

86. The apparatus of claim 67, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the DCI indication of the second available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to meet a threshold offset interval.

87. The apparatus of claim 67, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to a previous MAC CE indication of an available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI failing to satisfy a threshold offset interval.

88. The apparatus of claim 67, wherein: The MAC CE includes a MAC CE indication of a first available time slot associated with selectively transmitting the SRS information, The DCI includes a DCI indication of a second available time slot associated with selectively transmitting the SRS information, and Selectively sending the SRS information includes sending the SRS information according to the MAC CE indication of the first available time slot based at least in part on a time interval between the reception time of the MAC CE and the reception time of the DCI satisfying a threshold offset interval.

Images