Scheduling using schedule request opportunities

Abstract

In general, various aspects of the present disclosure relate to wireless communications. In some aspects, a user device may receive configuration information indicating a set of scheduling request (SR) opportunities (SROs), wherein the configuration information identifies a set of mappings between the set of SROs and a set of synchronization signal blocks (SSBs); receive an SSB from the set of SSBs; and send one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the mapping set. Many other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 002,078, filed on March 30, 2020, entitled “SCHEDULING USING SCHEDULING REQUEST OCCASIONS,” and U.S. Non-Provisional Patent Application No. 17 / 216,417, filed on March 29, 2021, entitled “SCHEDULING USING SCHEDULING REQUEST OCCASIONS,” and the above applications are hereby expressly incorporated herein by reference. Technical Field

[0003]

[0011] Generally speaking, aspects of the disclosure relate to wireless communications and to techniques and apparatus for scheduling using Scheduling Request (SR) Opportunities (SROs). Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support 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 released by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) that can support communications for multiple user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A "downlink" (or "forward link") refers to a communication link from a BS to a UE, and an "uplink" (or "reverse link") refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), wireless head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technology has been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global level. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), so as to better support mobile broadband Internet access, as well as support beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to grow, it is still useful to further improve LTE, NR and other wireless access technologies. Summary of the invention

[0007] In some aspects, a method of wireless communication performed by a user device may include: receiving configuration information indicating a scheduling request (SR) opportunity (SRO) set, wherein the configuration information identifies a mapping set between the SRO set and a synchronization signal block (SSB) set; receiving an SSB in the SSB set; and sending one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the mapping set.

[0008] In some aspects, a method of wireless communication performed by a base station may include: sending configuration information indicating an SRO set, wherein the configuration information identifies a mapping set between the SRO set and an SSB set; sending the SSB set; and receiving one or more SRs on one or more selected SROs associated with SSBs in the SSB set based at least in part on the mapping set.

[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive configuration information indicating a set of SROs, wherein the configuration information identifies a set of mappings between the set of SROs and a set of SSBs; receive SSBs in the set of SSBs; and send one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the set of mappings.

[0010] In some aspects, a base station for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: send configuration information indicating a set of SROs, wherein the configuration information identifies a set of mappings between the set of SROs and a set of SSBs; send the set of SSBs; and receive one or more SRs on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the set of mappings.

[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to perform the following operations: receiving configuration information indicating a set of SROs, wherein the configuration information identifies a mapping set between the set of SROs and a set of SSBs; receiving SSBs in the set of SSBs; and sending one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the mapping set.

[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to perform the following operations: sending configuration information indicating a set of SROs, wherein the configuration information identifies a mapping set between the set of SROs and a set of SSBs; sending the set of SSBs; and receiving one or more SRs on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the mapping set.

[0013] In some aspects, an apparatus for wireless communication may include: a unit for receiving configuration information indicating an SRO set, wherein the configuration information identifies a mapping set between the SRO set and an SSB set; a unit for receiving an SSB in the SSB set; and a unit for sending one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the mapping set.

[0014] In some aspects, an apparatus for wireless communication may include: a unit for sending configuration information indicating an SRO set, wherein the configuration information identifies a mapping set between the SRO set and an SSB set; a unit for sending the SSB set; and a unit for receiving one or more SRs on one or more selected SROs associated with SSBs in the SSB set based at least in part on the mapping set.

[0015] In general, aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as generally described herein with reference to the accompanying drawings and description and as illustrated by the accompanying drawings and description.

[0016] The foregoing has been fairly extensively outlined according to the features and technical advantages of the examples of the present disclosure, so that the specific embodiments below can be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and is not intended to be a definition of the limitations of the claims.

[0017] Although various aspects are described in this application by the description of some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. Different platform types, devices, systems, shapes, sizes and / or packaging arrangements can be used to implement the technology described herein. For example, some aspects can be implemented via integrated chip embodiments and other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchase equipment, medical devices, or devices supporting artificial intelligence). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. The device incorporating the described aspects and features may include additional components and features for the implementation and practice of the claimed and described aspects. For example, the transmission and reception of wireless signals may include multiple components for analog and digital purposes (e.g., hardware components including antennas, radio frequency chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers). The aspects described herein are intended to be practiced in various devices, chip-level components, systems, distributed arrangements, or end-user devices with different sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By referring to various aspects (some of which are shown in the accompanying drawings), a more specific description of the invention briefly summarized above can be obtained so that the above-mentioned features of the present disclosure can be understood in detail. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not considered to limit 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.

[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2 is a diagram showing an example of communication between a base station and a UE in a wireless network according to the present disclosure.

[0021] Figure 3-7 is a diagram illustrating an example of scheduling using SRO according to the present disclosure.

[0022] Figure 8 is a diagram illustrating an example process performed, for example, by a user device according to the present disclosure.

[0023] Fig. 9 is a diagram illustrating an example process performed, for example, by a base station according to the present disclosure. DETAILED DESCRIPTION

[0024] The following is a more complete description of various aspects of the present disclosure with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be interpreted 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 comprehensive and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings of this article, it should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether the aspect is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect. For example, using any number of aspects set forth herein, a device can be implemented or a method can be practiced. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions other than 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.

[0025] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). 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.

[0026] It should be noted that although 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).

[0027] Figure 1 is a diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, etc. The wireless network 100 may include a plurality of base stations 110 (shown 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 a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0028] A BS may provide communication coverage for macro cells, pico cells, femto cells, 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 residence) 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 1In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 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.

[0029] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections or virtual networks using any suitable transport network).

[0030] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that is capable of relaying transmissions for other UEs. Figure 1 In the example shown in , a relay BS 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.

[0031] 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 effects on interference in the wireless network 100. For example, a macro BS may have a high 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).

[0032] A 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 directly or indirectly via a wireless or wired backhaul.

[0033] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), 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 apparatus, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), an entertainment device (e.g., a music or video device, or a satellite radio unit, etc.), a vehicle-mounted component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0034] Some UEs may be considered as 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, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to a network (e.g., a wide area network such as the Internet or a cellular network) or a connection to a network, for example, via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component and / or a memory component). In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0035] 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. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, 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.

[0036] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may 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, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol), mesh network. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0037] Devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, devices of the wireless network 100 may communicate using an operating band having a first frequency range (FR1) (which may span from 410 MHz to 7.125 GHz), and / or may communicate using an operating band having a second frequency range (FR2) (which may 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 a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified by the International Telecommunication Union (ITU) as a "millimeter wave" band. Thus, unless expressly stated otherwise, it should be understood that the term “sub-6 GHz”, etc. (if used herein) may broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequencies (e.g., greater than 7.125 GHz). Similarly, unless expressly stated otherwise, it should be understood that the term “millimeter wave”, etc. (if used herein) may 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 that the techniques described herein are applicable to those modified frequency ranges.

[0038] As noted above, Figure 1 is provided as an example. Other examples may differ from those described above. Figure 1 Examples described.

[0039] Figure 21 is a diagram illustrating an example of base station 110 communicating with UE 120 in wireless network 100 according to the present disclosure. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general, T≥1 and R≥1.

[0040] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the 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 the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The 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. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (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 may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively.

[0041] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMOD) 254a to 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 further process the input samples (e.g., for OFDM) to obtain received symbols. MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. Receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to 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 UE 120 may be included in a housing.

[0042] 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.

[0043] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or may be included in one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antennas coupled to one or more transmitting and / or receiving components (such as Figure 2 One or more antenna elements of one or more components).

[0044] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). 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 (e.g., MOD / DEMOD 254) of the UE 120 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 of the methods described herein (e.g., as described with reference to Figure 3-9 described).

[0045] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the 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 of the methods described herein (e.g., as described with reference to Figure 3-9 described).

[0046] 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 the system may perform the associated one or more techniques, as described in more detail elsewhere herein. 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 The process of 800 Fig. 9 900 and / or operations of 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 communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, conversion, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example, Figure 8 The process of 800 Fig. 9 The process 900 and / or operations of other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0047] In some aspects, the UE 120 may include: a unit for receiving configuration information indicating a set of SROs, wherein the configuration information identifies a mapping set between the set of SROs and a set of synchronization signal blocks (SSBs); a unit for receiving an SSB in the set of SSBs; a unit for sending one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the mapping set; a unit for determining a transmit beam associated with the received SSB; a unit for receiving at least one of a control channel or a downlink transmission associated with the control channel on one or more receive beams associated with the one or more selected SROs; a unit for monitoring the control channel during a time period after sending the one or more SRs; a unit for sending another SR after the time period has elapsed based at least in part on a failure to receive the control channel during the time period; a unit for monitoring control channel opportunities mapped to the one or more selected SROs based at least in part on sending the one or more SRs on the one or more selected SROs; and the like. In some aspects, such a unit may include a unit for combining Figure 2One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.

[0048] In some aspects, the base station 110 may include: means for sending configuration information indicating a set of SROs, wherein the configuration information identifies a set of mappings between the set of SROs and the set of SSBs; means for sending the set of SSBs; means for receiving one or more SRs on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the set of mappings; means for monitoring the set of SROs using corresponding beams corresponding to the set of SSBs, wherein the receiving is based at least in part on the monitoring; means for sending at least one of a control channel or a downlink transmission associated with the control channel on one or more transmit beams associated with the one or more selected SROs; and the like. In some aspects, such means may include combining Figure 2 One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.

[0049] Although Figure 2 The blocks in the 200 and 210 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 noted above, Figure 2 is provided as an example. Other examples may differ from those described above. Figure 2 Examples described.

[0051] Some UEs may be associated with reduced capabilities relative to baseline UEs (e.g., enhanced mobile broadband (eMBB) UEs, etc.). For example, reduced capability (RedCap) UEs, Internet of Things (IoT) UEs, machine type communication (MTC) UEs, and NR light UEs, etc. may be associated with reduced capabilities relative to eMBB UEs. The reduced capabilities may relate to data rate, latency, availability or reliability thresholds, battery life, device size, etc. UEs with reduced capabilities may be used for industrial wireless sensors, video surveillance equipment, smart wearable devices, etc. In some aspects, UEs with reduced capabilities may be characterized by uplink-heavy traffic profiles, sparse and / or non-periodic traffic (e.g., for surveillance cameras based on motion detection), small-sized payload bursts, etc.

[0052] Due to the non-periodic and unpredictable uplink traffic associated with such UEs, assigning dedicated configured grant (CG) resources (e.g., using semi-static scheduling) may not be resource efficient. Therefore, an uplink resource allocation scheme based on a scheduling request (SR) may be used. For example, when the UE wants to send data, the UE may send an SR, and may receive a dynamic uplink grant from a scheduling entity (such as a BS). The UE may stay in a connected mode (e.g., a radio resource control (RRC) connected mode, etc.) to maintain uplink transmission resources (e.g., a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a sounding reference signal (SRS) configuration, etc.). For example, for the UE, frequent transitions between a connected mode and an idle or inactive mode may consume more power. In this case, the UE may operate in a discontinuous reception (DRX) mode or a sleep mode operation with a long period (for downlink control channel monitoring power saving). In addition, for stationary applications (e.g., associated with low or no device mobility) and small payloads (low data rates), link measurement and adaptation may not be particularly beneficial because the channel conditions of the UE are unlikely to change with sub-second or millisecond granularity. Therefore, active closed-loop link adaptation (e.g., using periodic or semi-persistent channel state information reference signals or SRS) may use a large amount of the UE's resources to obtain limited benefits. For example, frequent beam management may not be power efficient for UEs with reduced capabilities. However, if beam management is not performed frequently, the UE and BS may not know the best beam for the UE's PUCCH transmission, which may reduce the efficiency of the PUCCH transmission.

[0053] The techniques and apparatus described herein may provide event-triggered beam determination for SR without performing frequent beam management procedures (e.g., based on periodic or semi-persistent channel state information reference signals (CSI-RS) or SRS). For example, some techniques and apparatus described herein provide multiple SROs to be configured for a UE. Each SRO may be associated with one or more synchronization signal blocks (SSBs). For example, the mapping of SROs to SSBs may be one-to-one, many-to-one, one-to-many, or many-to-many. The UE may select an SRO based at least in part on receiving an SSB associated with the SRO, and may send an SR on the selected SRO. In some aspects, for example, when the SRO is shared by multiple UEs, UE-specific SR resources may be used for the SR. The base station may identify one or more beams for a physical downlink control channel (PDCCH) and / or a physical downlink shared channel (PDSCH) to the UE based at least in part on the SSBs associated with the SRO. For example, one or more beams may correspond to one or more beams for sending an SSB. Certain techniques and apparatus described herein provide for a SRO to be mapped to one or more PDCCH opportunities such that the monitoring burden on a UE is reduced relative to having to monitor the full range of potential PDCCH opportunities.

[0054] In this way, identification of beams for UE-triggered PDCCH and / or PDSCH is provided. Therefore, computational and communication resources that would otherwise be used to perform beam management on an ongoing basis can be saved. In addition, power usage of the UE can be reduced relative to performing continuous beam management.

[0055] Figure 3 is a diagram illustrating an example 300 of scheduling using SRO according to the present disclosure. Figure 3 Example 300, Figure 4 Example 400, Figure 5 Example 500, Figure 6 Example 600 and Figure 7 Example 700 involves communication by a UE (e.g., UE 120) and a base station (e.g., BS 110). In some aspects, the UE may be a reduced capability UE, such as a RedCap UE, a NR light UE, an IoT UE, an MTC UE, etc. The UE may be in a connected mode, an idle mode, an inactive mode, etc.

[0056] As indicated by reference numeral 310, the base station may provide configuration information to the UE. The configuration information may identify a configuration associated with the SRO set. For example, the configuration information may identify a mapping set between the SRO set and the SSB set to be sent by the base station. The SRO may identify a resource allocation (e.g., time resources, frequency resources, transmit beam configuration, etc.) to be used by the UE to send the SR. The SR is a message requesting the base station to schedule resource allocations for transmissions (such as small data transmissions) by the UE.

[0057] The UE may select an SRO based at least in part on an SSB associated with the SRO. An SSB is a collection of reference signals and channels, including a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel. An SSB is sometimes referred to as an SS block. Typically, a base station sends SSBs in a time domain mode using different transmit beams (e.g., using different spatial transmission parameters). The UE may monitor the SSBs using various receive beams, and may identify a "best SSB," which is an SSB with the best measurement value or an SSB with a measurement value that meets a threshold. In some aspects, the UE may report the best SSB (such as an SSB index) back to the base station for beam selection or refinement.

[0058] In some aspects, multiple SROs may be configured. The SRO may be associated with one or more SSBs. For example, the SRO may be associated with (e.g., mapped to) an SSB on a one-to-one basis (e.g., a single SRO may be mapped to a single SSB). As another example, the SRO may be associated with multiple SSBs. In this case, when any SSB in the multiple SSBs is selected as the best SSB, the UE 120 may select the SRO. As yet another example, multiple SROs may be associated with a single SSB. In this case, when the SSB is selected as the best SSB, the UE 120 may select multiple SROs, and an SR may be sent on each of the multiple SROs.

[0059] In some aspects, the SRO may be UE-specific. For example, the SRO configured for a UE may be unique to the UE, or may not be configured for other UEs covered by the base station. In some aspects, the SRO may be cell-specific. In some aspects, the SRO may be associated with a random access channel (RACH) opportunity. For example, the RACH opportunity may be used for SRO signaling (e.g., may be UE-specific). As another example, the RACH opportunity may be shared for non-SRO related signaling and SRO related signaling.

[0060] In some aspects, if the configured SRO is a RACH opportunity, etc., multiple UEs can share the SRO. For example, multiple UEs can share an SRO for a cell-specific configured SRO. In this case, the configuration information can assign corresponding UE-specific SR resources to multiple UEs. For example, if the RACH opportunity is used for the SRO, the corresponding non-contention RACH preamble can be assigned to the UE for the RACH opportunity. In some aspects, the UE can be configured with a corresponding non-contention RACH preamble at each RACH opportunity configured for the UE. In some aspects, the UE can be configured with one or more non-contention RACH preambles for a subset (e.g., an appropriate subset) of RACH opportunities.

[0061] In some aspects, the configuration information may identify a PDCCH opportunity associated with an SRO. For example, the configuration information may identify a mapping of one or more PDCCH opportunities to one or more SROs. A PDCCH opportunity is a set of resources in which a PDCCH directed to a UE may be sent. The UE may monitor the PDCCH on a PDCCH opportunity associated with an SRO on which the UE sends an SR, thereby saving monitoring resources that would otherwise be used to monitor a wider range of PDCCH opportunities and reducing power consumption. In some aspects, a single PDCCH opportunity may be mapped to a single SRO. In some aspects, a single PDCCH opportunity may be mapped to multiple SROs. In some aspects, multiple PDCCH opportunities may be mapped to a single PDCCH opportunity. In some aspects, if the UE is not configured with a mapping between a PDCCH opportunity and an SRO, the UE may monitor the PDCCH during the duration after sending the SR. In this case, if the UE does not receive a PDCCH containing an uplink grant for the UE, the UE may retransmit the SR (or may send another SR) on a subsequent SRO (e.g., the next SRO).

[0062] As indicated by reference numeral 320, an uplink data transmission may arrive at the UE. For example, the UE may determine that the uplink data transmission is to be sent to a base station. In some aspects, the uplink data transmission may be non-periodic. For example, the uplink data transmission may not be associated with a configured grant. Furthermore, in some aspects, the UE may not perform beam management on an ongoing basis. The techniques and apparatus described herein provide for the UE to identify an SRO on which an SR for uplink data transmission is to be sent, and for the base station to identify a beam for a PDCCH associated with the uplink data transmission based at least in part on the SRO.

[0063] As indicated by reference numeral 330, the BS may broadcast SSBs, one or more of which may be received by the UE. For example, the BS may transmit the SSBs using beam scanning across multiple transmit beams. As indicated by reference numeral 340, the UE may identify a best SSB among the SSBs transmitted by the BS. For example, the UE may identify the best SSB based at least in part on corresponding measurements of the SSBs (e.g., corresponding signal to interference plus noise ratio (SINR) values, corresponding reference signal received power (RSRP) values, corresponding reference signal received quality (RSRQ) values, etc.). In this example, the UE selects SSB 4.

[0064] As shown in reference numeral 350, the UE may transmit an SR on SRO 4 corresponding to SSB 4. For example, the UE may transmit the SR using a transmit beam corresponding to a receive beam used by the UE to receive SSB 4. In this example, SRO 4 is a UE-specific SRO for the UE, and SRO 4 is mapped to a single SSB (e.g., SSB 4). As shown in reference numeral 360, the BS may detect the SR on SRO 4. For example, the BS may monitor SROs 1, 2, 3, and 4 using corresponding receive beams corresponding to transmit beams used to transmit SSBs 1, 2, 3, and 4.

[0065] As shown in reference numeral 370, the BS may send a PDCCH on a transmit beam corresponding to SSB 4 and / or SRO 4. For example, the PDCCH may include downlink control information (DCI) for uplink grants for uplink data transmission to be performed by the UE. As shown in reference numeral 380, the UE may receive the PDCCH based at least in part on monitoring in a time window. For example, the UE may monitor the PDCCH in a time window after sending the SRO based at least in part on the UE not being configured with a mapping identifying a PDCCH opportunity associated with the SRO. As shown in reference numeral 390, the UE may use beams associated with the SRO and SSB to send uplink data transmission or a buffer status report (BSR) message.

[0066] As noted above, Figure 3 is provided as an example. Other examples may differ from those described above. Figure 3 Examples described.

[0067] Figure 4 4 is a diagram illustrating an example 400 of scheduling using SRO based at least in part on PDCCH timing mapping in accordance with the present disclosure. In example 400, configuration information shown by reference numeral 410 identifies a mapping associated with a PDCCH timing. For example, the configuration information may identify a mapping between SRO and / or SSB and a corresponding PDCCH timing. Figure 3 Reference numeral 310 describes this configuration in more detail.

[0068] Figure 4 Many of the operations shown are similar to Figure 3 4 and 4. As shown in the figure, the UE selects SRO 4 based at least in part on selecting SSB 4, and sends the SR on SRO 4. As shown in the figure, the UE can monitor PDCCH opportunity (PO) 4 based at least in part on configuration information indicating that PO 4 is mapped to SRO 4 and / or SSB 4. Therefore, UE 120 can reduce power consumption and usage of monitoring resources by monitoring only PO 4, rather than monitoring a time window including PO 1, 2, 3, and 4.

[0069] As noted above, Figure 4 is provided as an example. Other examples may differ from those described above. Figure 4 Examples described.

[0070] Figure 5 is a diagram illustrating an example 500 of scheduling using SRO according to the present disclosure. In example 500, one SRO is mapped to multiple SSBs. This may be useful, for example, for a UE operating using multiple beams (e.g., a multi-beam operation scenario). As shown, the configuration information shown by reference numeral 510 may identify multiple SSBs per SRO. The base station may send the SSBs on the corresponding beams, as shown by reference numeral 520. The UE may select multiple SSBs, for example, using two or more receive beams of the UE. Here, as shown by reference numeral 530, the UE selects SSB 3 and SSB 4. Therefore, as shown by reference numeral 540, the UE may send an SR on SRO N, which is mapped to a combination of SSB 3 and SSB 4. For example, different SROs may be mapped to different sets of SSBs, as indicated by the padding pairs shown for each SRO. The SRON may identify corresponding resources and / or beams associated with SSB 3 and SSB 4, and these corresponding resources and / or beams may be used to transmit corresponding SRs associated with SSB 4 and SSB 3. As indicated by reference numeral 550, the BS may detect the SR on the SRON based at least in part on monitoring the receive beams associated with SSB 3 and SSB 4 for the corresponding SR. Thus, as indicated by reference numeral 560, the BS may transmit a PDCCH including a DCI for an uplink grant using multiple beams associated with SSB 3 and SSB 4. As indicated by reference numeral 570, the UE may transmit a PUSCH or a BSR using multiple beams associated with SSB 3 and SSB 4 and / or the SRON.

[0071] Example 500 shows an example where there are more SROs than SSBs. For example, in example 500 there are 4 SSBs, and SROs 1 to N are mapped to different combinations of 2 of the 4 SSBs, which means that there may be up to 6 SROs. This may be useful for multi-beam operation. In some cases, there may be more SSBs than SROs. For example, there may be only two SROs. In this example, SRO1 may be associated with SSB 1 and SSB 2, and SRO2 may be associated with SSB 3 and SSB 4. This may reduce SRO overhead at the expense of reduced flexibility in SRO selection. For example, if the best beam is associated with SSB 1 and SSB 3, the UE may not be able to signal the selection.

[0072] In some aspects, a first set of SROs may be mapped to a single SSB and a second set of SROs may be mapped to multiple SSBs. Figure 3 As described, one or more SROs of the first group may be associated with a corresponding single SSB. Figure 5 As described, one or more SROs of the second group may be associated with corresponding sets of multiple SSBs. This may provide flexibility for single beam selection and multi-beam selection using the same configuration.

[0073] As noted above, Figure 5 is provided as an example. Other examples may differ from those described above. Figure 5 Examples described.

[0074] Figure 6 600 is a diagram illustrating an example of scheduling using SRO according to the present disclosure. In example 600, SRO and SSB are configured with a one-to-one mapping, and the UE selects multiple SSBs. For example, as shown in reference numeral 610, the UE may select SSB 3 and SSB 4. Thus, as shown in reference numeral 620, the UE may send (and the base station may receive) the corresponding SR on SRO3 and SRO4. As shown in reference numeral 630, the UE may send PDCCH using beams corresponding to SRO3 and SRO4. As shown in reference numeral 640, the UE may send PUSCH or BSR using beams corresponding to SRO3 and SRO4. Thus, the UE may select multiple beams for transmission of PDCCH, PDSCH, PUSCH and / or BSR in a one-to-one mapping configuration.

[0075] As noted above, Figure 6 is provided as an example. Other examples may differ from those described above. Figure 6 Examples described.

[0076] Figure 77 is a diagram illustrating an example 700 of scheduling using SRO according to the present disclosure. Example 700 illustrates an example of a cell-specific SRO configuration using RACH opportunities. RACH opportunities are illustrated by reference numerals 710 and 720. Reference numeral 710 illustrates a contention-based RACH opportunity, which may use a contention-based random access (CBRA) preamble, and reference numeral 720 illustrates a contention-free RACH opportunity, which may use a contention-free random access (CFRA) preamble. As shown by the corresponding filling of the RACH opportunity, each RACH opportunity set may be associated with a corresponding SSB. Thus, the RACH opportunity set may be configured as SRO. The UE may send a RACH preamble on a RACH opportunity configured to be associated with a selected SSB.

[0077] As shown in reference numeral 730, some of the contention-free RACH opportunities may be configured for (e.g., dedicated to) the UE. For example, the UE may be configured with a corresponding contention-free RACH opportunity for each SSB. Thus, the contention-free RACH opportunity may be used as a UE-specific SRO, while the contention-based RACH opportunity may be used as a cell-specific SRO.

[0078] As shown in reference numeral 740, the UE may send a CFRA preamble on RO4 corresponding to SSB 4. As shown in reference numeral 750, the base station may send a PDCCH including a DCI for an uplink grant on a beam corresponding to RO4. This may be similar to RACH message 2 in the CFRA procedure. As shown in reference numeral 760, the UE may send an uplink data transmission and / or BSR on a beam corresponding to SSB 4 and / or RO4. This may be similar to RACH message 3 in the CFRA procedure.

[0079] As noted above, Figure 7 is provided as an example. Other examples may differ from those described above. Figure 7 Examples described.

[0080] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a UE according to the present disclosure. The example process 800 is a diagram in which a UE (e.g., UE 120, Figure 3-7 An example of a UE, etc.) performing operations associated with scheduling using SRO.

[0081] like Figure 8As shown, in some aspects, process 800 may include: receiving configuration information indicating a set of SROs, wherein the configuration information identifies a set of mappings between the set of SROs and the set of SSBs (block 810). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive configuration information indicating a set of SROs, as described above. In some aspects, the configuration information identifies a set of mappings between the set of SROs and the set of SSBs.

[0082] like Figure 8 As further shown, in some aspects, process 800 may include receiving an SSB from a set of SSBs (block 820). For example, the SSBs from the set of SSBs may be received (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.), as described above. In some aspects, the UE may receive multiple SSBs from the set of SSBs, as described elsewhere herein.

[0083] like Figure 8 As further shown, in some aspects, process 800 may include sending one or more SRs on one or more selected SROs associated with the received SSB based at least in part on the mapping set (block 830). For example, the UE (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may send one or more SRs on one or more selected SROs associated with the received SSB based at least in part on the mapping set, as described above.

[0084] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0085] In a first aspect, the SRO set is UE-specific.

[0086] In a second aspect, alone or in combination with the first aspect, the SRO set is cell-specific.

[0087] In a third aspect, alone or in combination with one or more of the first and second aspects, the SRO set comprises a random access channel opportunity set.

[0088] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the mapping set includes a mapping of a single SRO in the SRO set to a single SSB in the SSB set.

[0089] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the mapping set includes a mapping of a single SRO in the SRO set to two or more SSBs in the SSB set.

[0090] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the mapping set includes a mapping of two or more SROs in the SRO set to a single SSB in the SSB set.

[0091] In a seventh aspect, either alone or in combination with one or more of aspects 1 to 6, process 800 comprises: selecting one or more selected SROs associated with a received SSB based at least in part on the received SSB, wherein sending one or more SRs on the one or more selected SROs is based at least in part on selecting the one or more selected SROs.

[0092] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the SSB is associated with a best measurement of a set of received SSBs received by the UE.

[0093] In a ninth aspect, either alone or in combination with one or more of aspects 1 to 8, process 800 comprises determining a transmit beam associated with a received SSB, wherein sending comprises sending one or more SRs on the one or more selected SROs using the transmit beam.

[0094] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the one or more selected SROs include one or more cell-specific SROs, and the one or more SRs are sent on UE-specific SR resources associated with the UE identified by configuration information.

[0095] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the UE-specific SR resources include a contention-free random access channel preamble.

[0096] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, one or more cell-specific SROs include one or more RACH opportunities, and the UE is configured with one or more corresponding non-contention RACH preamble codes corresponding to the one or more RACH opportunities.

[0097] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, one or more cell-specific SROs include multiple RACH opportunities, and the UE is configured with one or more corresponding non-contention RACH preamble codes corresponding to a subset of the one or more RACH opportunities.

[0098] In a fourteenth aspect, either alone or in combination with one or more of aspects one to thirteen, process 800 includes receiving at least one of a control channel or a downlink transmission associated with the control channel on one or more receive beams associated with one or more selected SROs.

[0099] In a fifteenth aspect, alone or in combination with one or more of aspects one to fourteen, one or more receive beams include a single receive beam based at least in part on one or more selected SROs being mapped to a single SSB and one or more SRs being transmitted using a single SRO.

[0100] In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, one or more receive beams include multiple receive beams corresponding to the multiple SROs based at least in part on one or more selected SROs being mapped to a single SSB and one or more SRs including multiple SRs transmitted on multiple SROs.

[0101] In the seventeenth aspect, alone or in combination with one or more of aspects one to sixteen, one or more receive beams include multiple receive beams corresponding to multiple SSBs based at least in part on one or more selected SROs including a single SRO mapped to multiple SSBs and one or more SRs including a single SR transmitted on the single SRO.

[0102] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, a control channel is received on a control channel opportunity, and the control channel opportunity is mapped to one or more selected SROs.

[0103] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, at least in part based on the fact that a control channel opportunity associated with the control channel is not mapped to one or more selected SROs, the method also includes: monitoring the control channel during a time period after sending one or more SRs.

[0104] In a twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, process 800 includes sending another SR after the time period has elapsed based at least in part on a failure to receive a control channel during the time period.

[0105] In a twenty-first aspect, either alone or in combination with one or more of aspects one to twentieth, process 800 comprises monitoring control channel opportunities mapped to one or more selected SROs based at least in part on sending one or more SRs on the one or more selected SROs.

[0106] In a twenty-second aspect, either alone or in combination with one or more of the first to twenty-first aspects, one or more selected SROs are mapped to one or more control channel opportunities in a one-to-one relationship.

[0107] In the twenty-third aspect, either alone or in combination with one or more of aspects one to twenty-second, the one or more selected SROs include a plurality of SROs mapped to one or more control channel opportunities, and a control channel opportunity in the one or more control channel opportunities is mapped to two or more SROs in the plurality of SROs.

[0108] In the twenty-fourth aspect, either alone or in combination with one or more of the first to twenty-third aspects, one or more selected SROs are mapped to multiple control channel opportunities, and an SRO in one or more selected SROs is mapped to two or more control channel opportunities in the multiple control channel opportunities.

[0109] Although Figure 8 Example blocks of process 800 are shown, but in some aspects, process 800 may include Figure 8 The blocks depicted in the process 800 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 800. Additionally or alternatively, two or more blocks in the blocks of process 800 may be executed in parallel.

[0110] Fig. 9 900 is a diagram illustrating an example process 900 performed by, for example, a base station according to the present disclosure. Example process 900 is a diagram in which a base station (e.g., base station 110, Figure 3-7 An example of a base station, etc.) performing operations associated with scheduling using SRO.

[0111] like Fig. 9 As shown, in some aspects, process 900 may include: sending configuration information indicating a set of SROs, wherein the configuration information identifies a set of mappings between the set of SROs and the set of SSBs (block 910). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may send configuration information indicating a set of SROs, as described above. In some aspects, the configuration information identifies a set of mappings between the set of SROs and the set of SSBs.

[0112] like Fig. 9 As further shown, in some aspects, process 900 may include: transmitting a set of SSBs (block 920). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may transmit the set of SSBs, as described above. The base station may transmit the set of SSBs on a corresponding set of beams.

[0113] like Fig. 9 As further shown, in some aspects, process 900 may include receiving one or more SRs on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the mapping set (block 930). For example, a base station (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may receive one or more SRs on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the mapping set, as described above.

[0114] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0115] In a first aspect, the SRO set is UE-specific.

[0116] In a second aspect, the SRO set is cell-specific.

[0117] In a third aspect, alone or in combination with one or more of the first and second aspects, the SRO set comprises a random access channel opportunity set.

[0118] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the mapping set includes a mapping of a single SRO in the SRO set to a single SSB in the SSB set.

[0119] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the mapping set includes a mapping of a single SRO in the SRO set to two or more SSBs in the SSB set.

[0120] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the mapping set includes a mapping of two or more SROs in the SRO set to a single SSB in the SSB set.

[0121] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 800 includes: monitoring a set of SROs using respective beams corresponding to a set of SSBs, wherein receiving is based at least in part on monitoring.

[0122] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the one or more selected SROs include one or more cell-specific SROs, and the one or more SRs are received on UE-specific SR resources associated with the UE identified by the configuration information.

[0123] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the UE-specific SR resources include a contention-free random access channel preamble.

[0124] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, one or more cell-specific SROs include one or more RACH opportunities, and the UE is configured with one or more corresponding contention-free RACH preamble codes corresponding to the one or more RACH opportunities.

[0125] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, one or more cell-specific SROs include multiple RACH opportunities, and the UE is configured with one or more corresponding non-contention RACH preamble codes corresponding to a subset of the one or more RACH opportunities.

[0126] In a twelfth aspect, either alone or in combination with one or more of aspects 1 to eleven, process 900 includes sending at least one of a control channel or a downlink transmission associated with the control channel on one or more transmit beams associated with one or more selected SROs.

[0127] In a thirteenth aspect, alone or in combination with one or more of aspects one to twelfth, one or more transmit beams include a single transmit beam based at least in part on one or more selected SROs being mapped to a single SSB and one or more SRs being received using a single SRO.

[0128] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, at least in part based on one or more selected SROs being mapped to a single SSB and one or more SRs including multiple SRs transmitted on multiple SROs, one or more transmit beams include multiple transmit beams corresponding to the multiple SROs.

[0129] In the fifteenth aspect, alone or in combination with one or more of aspects one to fourteen, one or more transmit beams include multiple transmit beams corresponding to multiple SSBs based at least in part on one or more selected SROs including a single SRO mapped to multiple SSBs and one or more SRs including a single SR received on the single SRO.

[0130] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, a control channel is transmitted on a control channel opportunity, and the control channel opportunity is mapped to one or more selected SROs.

[0131] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, one or more selected SROs are mapped to one or more control channel opportunities in a one-to-one relationship.

[0132] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, one or more selected SROs include multiple SROs mapped to one or more control channel opportunities, and a control channel opportunity in the one or more control channel opportunities is mapped to two or more SROs in the multiple SROs.

[0133] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, one or more selected SROs are mapped to multiple control channel opportunities, and SROs in one or more selected SROs are mapped to two or more control channel opportunities in the multiple control channel opportunities.

[0134] Although Fig. 9 Example blocks of process 900 are shown, but in some aspects process 900 may include Fig. 9 The blocks depicted in the process 900 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 900. Additionally or alternatively, two or more blocks in the blocks of process 900 may be executed in parallel.

[0135] The following provides a summary of some aspects of the disclosure:

[0136] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving configuration information indicating a scheduling request (SR) opportunity (SRO) set, wherein the configuration information identifies a mapping set between the SRO set and a synchronization signal block (SSB) set; receiving an SSB in the SSB set; and sending one or more SRs on one or more selected SROs associated with the received SSBs based at least in part on the mapping set.

[0137] Aspect 2: The method according to aspect 1, wherein the SRO set is UE-specific.

[0138] Aspect 3: The method according to aspect 1, wherein the SRO set is cell-specific.

[0139] Aspect 4: The method according to any one of aspects 1-3, wherein the SRO set includes a random access channel opportunity set.

[0140] Aspect 5: The method according to any one of aspects 1-4, wherein the mapping set includes a mapping of a single SRO in the SRO set to a single SSB in the SSB set.

[0141] Aspect 6: The method according to any one of aspects 1-5, wherein the mapping set includes a mapping of a single SRO in the SRO set to two or more SSBs in the SSB set.

[0142] Aspect 7: The method according to any one of aspects 1-6, wherein the mapping set includes a mapping of two or more SROs in the SRO set to a single SSB in the SSB set.

[0143] Aspect 8: The method according to any one of Aspects 1-7 further includes: selecting the one or more selected SROs associated with the received SSB based at least in part on receiving the SSB, wherein sending the one or more SRs on the one or more selected SROs is based at least in part on selecting the one or more selected SROs.

[0144] Aspect 9: The method according to aspect 8, wherein the SSB is associated with a best measurement of a set of received SSBs received by the UE.

[0145] Aspect 10: The method according to aspect 8 further includes: determining a transmit beam associated with the received SSB, wherein the sending includes: sending the one or more SRs on the one or more selected SROs using the transmit beam.

[0146] Aspect 11: A method according to any one of Aspects 1-10, wherein the one or more selected SROs include one or more cell-specific SROs, and wherein the one or more SRs are sent on UE-specific SR resources associated with the UE identified by the configuration information.

[0147] Aspect 12: The method according to aspect 11, wherein the UE-specific SR resources include a contention-free random access channel preamble code.

[0148] Aspect 13: A method according to Aspect 11, wherein the one or more cell-specific SROs include one or more random access channel (RACH) opportunities, and wherein the UE is configured with one or more corresponding non-contention RACH preamble codes corresponding to the one or more RACH opportunities.

[0149] Aspect 14: A method according to Aspect 11, wherein the one or more cell-specific SROs include multiple random access channel (RACH) opportunities, and wherein the UE is configured with one or more corresponding non-contention RACH preamble codes corresponding to a subset of the one or more RACH opportunities.

[0150] Aspect 15: The method according to any one of Aspects 1-14 further includes: receiving at least one of a control channel or a downlink transmission associated with the control channel on one or more receive beams associated with the one or more selected SROs.

[0151] Aspect 16: The method of aspect 15, wherein the one or more receive beams comprise a single receive beam based at least in part on the one or more selected SROs being mapped to a single SSB and the one or more SRs being transmitted using a single SRO.

[0152] Aspect 17: A method according to Aspect 15, wherein, based at least in part on the one or more selected SROs being mapped to a single SSB and the one or more SRs comprising multiple SRs transmitted on multiple SROs, the one or more receive beams comprise multiple receive beams corresponding to the multiple SROs.

[0153] Aspect 18: A method according to Aspect 15, wherein, based at least in part on the one or more selected SROs comprising a single SRO mapped to multiple SSBs and the one or more SRs comprising a single SR transmitted on the single SRO, the one or more receive beams comprising multiple receive beams corresponding to the multiple SSBs.

[0154] Aspect 19: The method of aspect 15, wherein the control channel is received on a control channel opportunity, and wherein the control channel opportunity is mapped to the one or more selected SROs.

[0155] Aspect 20: A method according to Aspect 15, wherein, based at least in part on the fact that a control channel opportunity associated with the control channel is not mapped to the one or more selected SROs, the method further comprises: monitoring the control channel during a time period after sending the one or more SRs.

[0156] Aspect 21: The method of aspect 20, further comprising: sending another SR after the time period has elapsed based at least in part on failure to receive the control channel during the time period.

[0157] Aspect 22: The method according to aspect 15, further comprising: monitoring control channel opportunities mapped to the one or more selected SROs based at least in part on sending the one or more SRs on the one or more selected SROs.

[0158] Aspect 23: The method according to aspect 15, wherein the one or more selected SROs are mapped to one or more control channel opportunities in a one-to-one relationship.

[0159] Aspect 24: A method according to Aspect 15, wherein the one or more selected SROs include multiple SROs mapped to one or more control channel opportunities, and wherein a control channel opportunity among the one or more control channel opportunities is mapped to two or more SROs among the multiple SROs.

[0160] Aspect 25: A method according to Aspect 15, wherein the one or more selected SROs are mapped to multiple control channel opportunities, and wherein an SRO in the one or more selected SROs is mapped to two or more control channel opportunities in the multiple control channel opportunities.

[0161] Aspect 26: A method of wireless communication performed by a base station, comprising: sending configuration information indicating a scheduling request (SR) opportunity (SRO) set, wherein the configuration information identifies a mapping set between the SRO set and a synchronization signal block (SSB) set; sending the SSB set; and receiving one or more SRs on one or more selected SROs associated with an SSB in the SSB set based at least in part on the mapping set.

[0162] Aspect 27: The method according to aspect 26, wherein the SRO set is UE-specific.

[0163] Aspect 28: The method according to aspect 26, wherein the SRO set is cell-specific.

[0164] Aspect 29: The method according to any one of aspects 26-29, wherein the SRO set includes a random access channel opportunity set.

[0165] Aspect 30: The method according to any one of Aspects 26-29 further includes: sending at least one of a control channel or a downlink transmission associated with the control channel on one or more transmit beams associated with the one or more selected SROs.

[0166] Aspect 31: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions, the instructions being stored in the memory and executable by the processor to cause the apparatus to perform a method according to one or more of Aspects 1-30.

[0167] Aspect 32: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method according to one or more of aspects 1-30.

[0168] Aspect 33: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-30.

[0169] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1-30.

[0170] Aspect 35: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of a device, causes the device to perform a method according to one or more of aspects 1-30.

[0171] 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.

[0172] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes and / or functions, etc. As used herein, a processor is implemented in a combination of hardware and / or hardware and software. It will be apparent that the system and / or method described herein can be implemented with a combination of hardware and / or hardware and software in different forms. The actual specialized control hardware or software code for implementing these systems and / or methods is not to limit various aspects. Therefore, the operation and behavior of the system and / or method are described herein without citing a specific software code, and it is to be understood that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0173] 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.

[0174] Even if the specific combination of features 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 below can only be directly subordinate to 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 the 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 any combination of a, b, c, ab, ac, bc and abc, and with the multiple of the same element (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).

[0175] Elements, actions or instructions used herein should not 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 a combination of related projects and unrelated projects), and can be used interchangeably with "one or more". In the case of only expecting a project, phrases "only one" or similar language are used. In addition, as used herein, the terms "has", "have", "having" etc. are intended to be open terms. In addition, unless otherwise expressly stated, phrase "based on" is intended to mean "based at least in part 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 (eg, if used in conjunction with "either" or "only one of").

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: Receiving configuration information indicating a set of scheduling request (SR) opportunities (SROs), wherein the configuration information identifies a set of mappings between the set of SROs and a set of synchronization signal blocks (SSBs); receiving an SSB in the set of SSBs; and One or more SRs are sent on one or more selected SROs associated with the received SSB based at least in part on the mapping set, wherein the one or more selected SROs are mapped to a single SSB and the one or more SRs are sent on multiple SROs.

2. The method according to claim 1, wherein: The SRO set is UE-specific.

3. The method according to claim 1, wherein: The SRO set is cell-specific.

4. The method according to claim 1, wherein: The SRO set includes a random access channel opportunity set.

5. The method according to claim 1, wherein: The mapping set includes a mapping of a single SRO in the SRO set to a single SSB in the SSB set.

6. The method according to claim 1, wherein: The mapping set includes a mapping of a single SRO in the SRO set to two or more SSBs in the SSB set.

7. The method according to claim 1, wherein: The mapping set includes a mapping of two or more SROs in the SRO set to a single SSB in the SSB set.

8. The method according to claim 1, further comprising: The one or more selected SROs associated with the received SSB are selected based at least in part on receiving the SSB, wherein sending the one or more SRs on the one or more selected SROs is based at least in part on selecting the one or more selected SROs.

9. The method according to claim 8, wherein: The SSB is associated with a best measurement of a set of received SSBs received by the UE.

10. The method according to claim 8, further comprising: determining the transmit beam associated with the received SSB, The sending includes: sending the one or more SRs on the one or more selected SROs using the transmit beam.

11. The method according to claim 1, wherein: The one or more selected SROs include one or more cell-specific SROs, and wherein the one or more SRs are sent on UE-specific SR resources associated with the UE identified by the configuration information.

12. The method according to claim 11, wherein: The UE-specific SR resources include a contention-free random access channel preamble.

13. The method according to claim 11, wherein: The one or more cell-specific SROs include one or more random access channel (RACH) opportunities, and wherein the UE is configured with one or more corresponding contention-free RACH preambles corresponding to the one or more RACH opportunities.

14. The method according to claim 11, wherein: The one or more cell-specific SROs include a plurality of random access channel (RACH) opportunities, and wherein the UE is configured with one or more respective contention-free RACH preambles corresponding to a subset of the one or more RACH opportunities.

15. The method according to claim 1, further comprising: At least one of a control channel or a downlink transmission associated with the control channel is received on one or more receive beams associated with the one or more selected SROs.

16. The method according to claim 15, wherein: Based at least in part on the one or more selected SROs being mapped to a single SSB and the one or more SRs being transmitted using a single SRO, the one or more receive beams include a single receive beam.

17. The method according to claim 15, wherein: The one or more receive beams include a plurality of receive beams corresponding to the plurality of SROs.

18. The method according to claim 15, wherein: Based at least in part on the one or more selected SROs comprising a single SRO mapped to a plurality of SSBs and the one or more SRs comprising a single SR transmitted on the single SRO, the one or more receive beams comprising a plurality of receive beams corresponding to the plurality of SSBs.

19. The method according to claim 15, wherein: The control channel is received on a control channel opportunity of one or more control channel opportunities, and wherein the control channel opportunities are mapped to the one or more selected SROs.

20. The method according to claim 15, wherein: Based at least in part on a control channel opportunity associated with the control channel of the one or more control channel opportunities not being mapped to the one or more selected SROs, the method further comprising: The control channel is monitored during a time period after sending the one or more SRs.

21. The method according to claim 20, further comprising: Another SR is sent after the time period has elapsed based at least in part on a failure to receive the control channel during the time period.

22. The method of claim 15, further comprising: Control channel opportunities of one or more control channel opportunities that are mapped to the one or more selected SROs are monitored based at least in part on sending the one or more SRs on the one or more selected SROs.

23. The method according to claim 15, wherein: The one or more selected SROs are mapped to one or more control channel opportunities in a one-to-one relationship.

24. The method according to claim 15, wherein: The one or more selected SROs include a plurality of SROs mapped to one or more control channel opportunities, and wherein a control channel opportunity of the one or more control channel opportunities is mapped to two or more SROs of the plurality of SROs.

25. The method of claim 15, wherein: The one or more selected SROs are mapped to a plurality of control channel opportunities of the one or more control channel opportunities, and wherein SROs of the one or more selected SROs are mapped to two or more control channel opportunities of the plurality of control channel opportunities.

26. A method of wireless communication performed by a base station, comprising: Sending configuration information indicating a set of scheduling request (SR) opportunities (SROs), wherein the configuration information identifies a mapping set between the set of SROs and a set of synchronization signal blocks (SSBs); sending the SSB set; and One or more SRs are received on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the mapping set, wherein the one or more selected SROs are mapped to a single SSB and the one or more SRs are sent on multiple SROs.

27. The method according to claim 26, wherein: The SRO set includes a random access channel opportunity set.

28. The method of claim 26, further comprising: At least one of a control channel or a downlink transmission associated with the control channel is transmitted on one or more transmit beams associated with the one or more selected SROs.

29. A user equipment (UE) for wireless communication, comprising: Memory; as well as one or more processors operably coupled to the memory, the memory and the one or more processors being configured to: Receiving configuration information indicating a set of scheduling request (SR) opportunities (SROs), wherein the configuration information identifies a set of mappings between the set of SROs and a set of synchronization signal blocks (SSBs); receiving an SSB in the set of SSBs; and One or more SRs are sent on one or more selected SROs associated with the received SSB based at least in part on the mapping set, wherein the one or more selected SROs are mapped to a single SSB and the one or more SRs are sent on multiple SROs.

30. A base station for wireless communication, comprising: Memory; as well as one or more processors operably coupled to the memory, the memory and the one or more processors being configured to: Sending configuration information indicating a set of scheduling request (SR) opportunities (SROs), wherein the configuration information identifies a mapping set between the set of SROs and a set of synchronization signal blocks (SSBs); sending the SSB set; and One or more SRs are received on one or more selected SROs associated with SSBs in the set of SSBs based at least in part on the mapping set, wherein the one or more selected SROs are mapped to a single SSB and the one or more SRs are sent on multiple SROs.

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