Hierarchy of Scheduling Requests

Abstract

Certain aspects of the subject matter described in this disclosure may be implemented in a method for wireless communication by a user equipment (UE). The method generally includes: sending a scheduling request (SR) to a base station (BS) to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; and receiving an indication of resource allocation for data transmission.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Application No. 17 / 325,846, filed on May 20, 2021, which claims the benefit and priority of U.S. Provisional Application No. 63 / 028,812, filed on May 22, 2020, which is assigned to the assignee of this application and is hereby incorporated by reference in its entirety as if fully set forth below and for all applicable purposes. Technical Field

[0003] Aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for requesting scheduling. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcast, etc. These 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 systems include 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, Advanced LTE (LTE-A) systems, 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, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name a few.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. New radio (e.g., 5G NR) is an example of an emerging telecommunication standard. NR 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 OFDMA with cyclic prefix (CP) on the downlink (DL) and on the uplink (UL), so as to better support mobile broadband Internet access. To this end, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0006] As the demand for mobile broadband access continues to grow, there is a need for further improvements to NR and LTE technologies. These improvements should also apply to other multiple access technologies and the telecommunication standards that employ them. Summary of the invention

[0007] The systems, methods, and devices of the present disclosure each have several aspects, no single aspect of which is solely responsible for its desirable attributes. Without limiting the scope of the present disclosure as expressed by the claims that follow, some features will now be briefly discussed. After considering this discussion, and particularly after reading the section entitled "Detailed Description," those skilled in the art will understand how the features of the present disclosure provide advantages, including improved techniques for request scheduling.

[0008] Certain aspects of the subject matter described in this disclosure may be implemented in a method for wireless communication by a user equipment (UE). The method generally includes: sending a scheduling request (SR) to a base station (BS) to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancement SR configuration and another SR configuration for requesting resources at the UE; and receiving an indication of resource allocation for data transmission.

[0009] Certain aspects of the subject matter described in this disclosure may be implemented in a method for wireless communication by a BS. The method generally includes: receiving an SR from a UE requesting resource allocation for data transmission; and sending an indication to the UE indicating resource allocation for data transmission, wherein the indication is based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration.

[0010] Certain aspects of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication by a UE. The apparatus generally includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors configured to: send an SR to a BS to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; and receive an indication of resource allocation for data transmission.

[0011] Certain aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication by a BS. The apparatus generally includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors configured to: receive an SR requesting resource allocation for data transmission from a UE; and send an indication indicating resource allocation for data transmission to the UE, wherein the indication is based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration.

[0012] Certain aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication by a UE. The apparatus generally includes: means for sending an SR to a BS to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; and means for receiving an indication of resource allocation for data transmission.

[0013] Certain aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication by a BS. The apparatus generally includes: a unit for receiving an SR requesting resource allocation for data transmission from a UE; and a unit for sending an indication to the UE indicating the resource allocation for data transmission, wherein the indication is based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration.

[0014] Certain aspects of the subject matter described in the present disclosure may be implemented in a computer-readable medium having instructions stored thereon to cause a UE to: send an SR to a BS to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhanced SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; and receive an indication of resource allocation for data transmission.

[0015] Certain aspects of the subject matter described in the present disclosure may be implemented in a computer-readable medium having instructions stored thereon to cause a BS to: receive an SR from a UE requesting resource allocation for data transmission; and send an indication to the UE indicating resource allocation for data transmission, wherein the indication is based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration.

[0016] Certain aspects of the subject matter described in the present disclosure may be implemented in a method for wireless communication by a UE. The method generally includes: selecting between a coverage enhancement SR configuration and another SR configuration at the UE for requesting resource allocation for data transmission; generating an SR according to the selection; sending the SR to a BS to request resource allocation for data transmission; and receiving a DCI indicating resource allocation for data transmission.

[0017] Certain aspects of the subject matter described in this disclosure may be implemented in a method for wireless communication by a BS. The method generally includes: receiving an SR from a UE for requesting resource allocation for data transmission; determining whether the SR is configured according to a coverage enhancement SR configuration or another SR configuration; generating a DCI indicating resource allocation for data transmission; and sending the DCI to the UE.

[0018] Certain aspects of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication by a UE. The apparatus generally includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: select between a coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; generate an SR according to the selection; send the SR to a BS to request resource allocation for data transmission; and receive a DCI indicating resource allocation for data transmission.

[0019] Certain aspects of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication by a BS. The apparatus generally includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: receive an SR from a UE for requesting resource allocation for data transmission; determine whether the SR is configured according to a coverage enhancement SR configuration or another SR configuration; generate a DCI indicating resource allocation for data transmission; and send the DCI to the UE.

[0020] Certain aspects of the subject matter described in the present disclosure may be implemented in an apparatus for wireless communication by a UE. The apparatus generally includes: a unit for selecting between a coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; a unit for generating an SR according to the selection; a unit for sending the SR to a BS to request resource allocation for data transmission; and a unit for receiving a DCI indicating resource allocation for data transmission.

[0021] Certain aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication by a BS. The apparatus generally includes: a unit for receiving an SR for requesting resource allocation for data transmission from a UE; a unit for determining whether the SR is configured according to a coverage enhancement SR or another SR configuration; a unit for generating a DCI indicating resource allocation for data transmission; and a unit for sending the DCI to the UE.

[0022] Certain aspects of the subject matter described in the present disclosure may be implemented in a computer-readable medium having instructions stored thereon to cause a UE to: select between a coverage-enhanced SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; generate an SR based on the selection; send the SR to a BS to request resource allocation for data transmission; and receive a DCI indicating resource allocation for data transmission.

[0023] Certain aspects of the subject matter described in the present disclosure may be implemented in a computer-readable medium having instructions stored thereon to cause a BS to: receive an SR from a UE requesting resource allocation for data transmission; determine whether the SR is configured according to a coverage enhancement SR or another SR configuration; generate a DCI indicating resource allocation for data transmission; and send the DCI to the UE.

[0024] To achieve the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of only a few of the various ways in which the principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to understand the above-mentioned features of the present disclosure in detail, a more specific description can be made to the content briefly summarized above by reference to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate some typical aspects of the present disclosure and are therefore not to be considered as limiting its scope, as the specification may admit other equally effective aspects.

[0026] Figure 1 is a block diagram conceptually illustrating an example telecommunications system in accordance with certain aspects of the present disclosure.

[0027] Figure 2 is a block diagram conceptually illustrating designs of example base stations (BSs) and user equipments (UEs) in accordance with certain aspects of the present disclosure.

[0028] Figure 3 is an example frame format for New Radio (NR) in accordance with certain aspects of the present disclosure.

[0029] Figure 4 is a flow diagram illustrating example operations for wireless communications by a BS in accordance with certain aspects of the present disclosure.

[0030] Figure 5 is a flow diagram illustrating example operations for wireless communications by a UE in accordance with certain aspects of the present disclosure.

[0031] Figure 6 is a flow diagram illustrating example operations by a BS for responding to a scheduling request in accordance with certain aspects of the present disclosure.

[0032] Figure 7 is a flow diagram illustrating example operations for requesting scheduling by a UE in accordance with certain aspects of the present disclosure.

[0033] Figure 8 is a call flow diagram illustrating example operations for configuring and activating a scheduling request (SR) for coverage enhancement in accordance with certain aspects of the present disclosure.

[0034] Fig. 9 is a call flow diagram illustrating example operations for triggering beam failure recovery (BFR) in accordance with certain aspects of the present disclosure.

[0035] Fig.10 A communication device in accordance with aspects of the present disclosure is shown and may include various components configured to perform operations for the techniques disclosed herein.

[0036] Fig.11 A communication device in accordance with aspects of the present disclosure is shown and may include various components configured to perform operations for the techniques disclosed herein.

[0037] To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements that are common to the figures. It is contemplated that elements disclosed in one aspect may be beneficially utilized on other aspects without specific recitation. DETAILED DESCRIPTION

[0038] Aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable media for requesting resource scheduling for data transmission. For example, a coverage enhancement scheduling request (SR) may be configured at a user equipment (UE) to enhance the coverage of a transmission. As used herein, enhancement of coverage for a transmission may refer to any improvement in a transmission, for example, improving reliability or throughput associated with the transmission.

[0039] A coverage-enhanced SR generally refers to an SR transmission that increases coverage for data scheduling, for example, by increasing the coverage of the SR transmission compared to a conventional SR, thereby indicating to a base station (BS) that a coverage enhancement procedure for scheduling data transmission or the data transmission itself, or both, is implemented. For example, the coverage of the SR transmission may be enhanced by multiple repetitions of a conventional SR. In another example, the coverage of the data transmission may be enhanced by triggering a channel state information (CSI)-reference signal (RS) transmission by the BS or by triggering the BS to apply repetitions to one or more data transmissions.

[0040] In some cases, the beam used for transmission may become weak or affected by partial shadowing. Certain aspects provide techniques for establishing a certain performance level for a channel, even though the weaker beam is still active. In addition, certain aspects provide techniques for the UE to trigger CSI operations so that the BS can use reliable CSI feedback for new beam allocations. Therefore, in order to establish this performance level and reliability for transmission when using a weaker beam, the UE may be configured with a coverage enhancement SR. In other words, in one or more aspects, the UE may detect coverage issues earlier than the BS and may take one or more actions to enhance coverage for the active beam. When the channel quality for request or data transmission has degraded or when there is a lack of response to the SR from the base station (BS), the UE may choose to use a coverage enhancement SR to send a scheduling request to improve transmission coverage.

[0041] The following description provides an example of a technology for requesting scheduling in a communication system. The functions and arrangements of the elements discussed may be changed without departing from the present disclosure. Various processes or components may be omitted, replaced or added in various examples as appropriate. For example, the method described may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, the features described in some examples may be combined in some other examples. For example, using any number of aspects set forth herein, a device may be implemented or a method may be implemented. 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 other than or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims. The word "exemplary" is used herein to mean "used as an example, instance or illustration". Any aspect described as "exemplary" herein may not necessarily be interpreted as being preferred or more advantageous than other aspects.

[0042] Generally, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific radio access technology (RAT) and may operate on one or more frequencies. RAT may also be referred to as a radio technology, air interface, etc. Frequency may also be referred to as a carrier, subcarrier, frequency channel, tone, subband, etc. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks with different RATs.

[0043] The techniques described herein can be used for various wireless networks and radio technologies. Although terms commonly associated with 3G, 4G, and / or new radio (e.g., 5G NR) wireless technologies may be used herein to describe various aspects, various aspects of the present disclosure may be applied to communication systems based on other generations.

[0044] NR access can support various wireless communication services, such as enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g., 80MHz or greater), millimeter wave (mmW) targeting high carrier frequency (e.g., 25GHz or greater), massive machine type communication MTC (mMTC) targeting non-backward compatible MTC technology, and / or mission critical targeting ultra-reliable low latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTIs) to meet corresponding quality of service (QoS) requirements. In addition, these services can coexist in the same subframe. NR supports beamforming and can dynamically configure beam directions. MIMO transmission with precoding can also be supported. The MIMO configuration in the downlink (DL) can support up to 8 transmit antennas with multi-layer DL transmission of up to 8 streams and up to 2 streams per UE. Multi-layer transmission with up to 2 streams per UE can be supported. Aggregation of multiple cells with up to 8 serving cells can be supported.

[0045] Figure 1 An example wireless communication network 100 is shown in which aspects of the present disclosure may be performed. For example, the wireless communication network 100 may be a NR system (e.g., a 5G NR network). Figure 1 As shown in FIG, the wireless communication network 100 may be in communication with a core network 132. The core network 132 may be in communication with one or more BSs 110 and / or UEs 120 in the wireless communication network 100 via one or more interfaces.

[0046] like Figure 1 As shown in , the wireless communication network 100 may include multiple BSs 110a-z (each also individually referred to herein as BS 110 or collectively referred to as BS 110) and other network entities. BS 110 may provide communication coverage for a specific geographic area (sometimes referred to as a "cell"), which may be fixed or may move according to the location of the mobile BS 110. In some examples, BS 110 may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless communication network 100 through various types of backhaul interfaces (e.g., direct physical connections, wireless connections, virtual networks, etc.) using any suitable transport network. Figure 1In the example shown in FIG. 1 , BSs 110a, 110b, and 110c may be macro BSs for macro cells 102a, 102b, and 102c, respectively. BS 110x may be a pico BS for pico cell 102x. BSs 110y and 110z may be femto BSs for femto cells 102y and 102z, respectively. A BS may support one or more cells. A network controller 130 may be coupled to a set of BSs 110 and provide coordination and control (e.g., via a backhaul) for these BSs 110.

[0047] BS 110 communicates with UEs 120a-y (each also referred to herein individually as UE 120 or collectively as UE 120) in the wireless communication network 100. UEs 120 (e.g., 120x, 120y, etc.) may be dispersed throughout the wireless communication network 100, and each UE 120 may be fixed or mobile. The wireless communication network 100 may also include a relay station (e.g., relay station 110r) (also referred to as a repeater, etc.) that receives transmissions of data and / or other information from an upstream station (e.g., BS 110a or UE 120r) and sends transmissions of data and / or other information to a downstream station (e.g., UE 120 or BS 110), or relays transmissions between UEs 120 to facilitate communication between devices.

[0048] like Figure 1 As shown in FIG. 1 , one or more transmit (TX) and receive (RX) beams 140 may be used for communication (e.g., DL and uplink (UL) communication) between BS 110a and UE 120a. In some cases, beam 140 used for communication between BS 110a and UE 120a may fail, and a beam failure condition may be detected. Thus, a new candidate beam for resolving the beam failure condition may be identified, and a beam failure recovery procedure may be initiated using the candidate beam.

[0049] According to certain aspects, BS 110 and UE 120 may be configured to manage requests for scheduling. Figure 1 As shown in , BS 110a includes a scheduling manager 112. According to aspects of the present disclosure, the scheduling manager 122 may be configured to: receive an SR for requesting resource allocation for data transmission from a UE; and send an indication to the UE indicating resource allocation for data transmission, wherein the indication is generated based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration. Figure 1As shown in , UE 120a includes a scheduling manager 122. According to aspects of the present disclosure, the scheduling manager 22 may be configured to: send an SR to a BS to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; and receive an indication of resource allocation for data transmission.

[0050] Figure 2 1 shows example components 200 of a BS 110a and a UE 120a (eg, in Figure 1 In the wireless communication network 100), it can be used to implement various aspects of the present disclosure.

[0051] At BS 110a, transmit processor 220 may receive data from data source 212 and control information from controller / processor 240. Control information may be used for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), etc. Data may be used for a physical downlink shared channel (PDSCH), etc. A medium access control (MAC)-control element (MAC-CE) is a MAC layer communication structure that may be used for control command exchange between wireless nodes. A MAC-CE may be carried in a shared channel such as a PDSCH, a physical uplink shared channel (PUSCH), or a physical sidelink shared channel (PSSCH).

[0052] The processor 220 may process (e.g., encode and symbol map) data and control information, respectively, to obtain data symbols and control symbols. The processor 220 may also generate reference signals, such as for primary synchronization signals (PSS), secondary synchronization signals (SSS), and channel state information reference symbols (CSI-RS). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols (if applicable), and may provide an output symbol stream to the modulator (MOD) 232a-232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for orthogonal frequency division multiplexing (OFDM), etc.) to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a DL signal. The DL signals from modulators 232a-232t may be transmitted via antennas 234a-234t, respectively.

[0053] At UE 120a, antennas 252a-252r can receive DL signals from BS 110a and can provide received signals to demodulators (DEMODs) 254a-254r in the transceiver, respectively. Each demodulator 254a-254r in the transceiver can adjust (e.g., filter, amplify, downconvert, and digitize) the corresponding received signal to obtain input samples. Each demodulator can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain received symbols from all demodulators 254a-254r in the transceiver, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. Receive processor 258 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for UE 120a to data sink 260, and provide decoded control information to controller / processor 280.

[0054] On the UL, at the UE 120a, a transmit processor 264 may receive and process data from a data source 262 (e.g., for a PUSCH) and control information from a controller / processor 280 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 264 may also generate reference symbols for a reference signal (RS), such as a sounding reference signal (SRS). The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a-254r (e.g., for SC-FDM, etc.) in the transceiver, and transmitted to the BS 110a. At the BS 110a, the UL signal from the UE 120a may be received by the antenna 234, processed by the modulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120a. The receive processor 238 may provide decoded data to a data sink 239 and decoded control information to a controller / processor 240 .

[0055] Memories 242 and 282 may store data and program codes for BS 110a and UE 120a, respectively.A scheduler 244 may schedule UEs for data transmission on the DL and / or UL.

[0056] The antenna 252, processors 266, 258, 264 and / or controller / processor 280 of the UE 120a and / or the antenna 234, processors 220, 230, 238 and / or controller / processor 240 of the BS 110a may be used to perform the various techniques and methods described herein. Figure 2As shown in FIG. 1 , according to various aspects described herein, the controller / processor 240 of the BS 110a has a scheduling manager 112. For example, Figure 2 As shown in FIG. 1 , the controller / processor 280 of the UE 120a has a schedule manager 122 in accordance with various aspects described herein. Although shown at the controller / processor level, other components of the UE 120a and BS 110a may be used to perform the operations described herein.

[0057] NR can utilize OFDM with a cyclic prefix (CP) on UL and DL. NR can support half-duplex operation using time division duplex (TDD). OFDM and single carrier frequency division multiplexing (SC-FDM) can divide the system bandwidth into multiple orthogonal subcarriers, which are also commonly referred to as tones, frequencies, etc. Each subcarrier can be modulated with data. Modulation symbols can be sent using OFDM in the frequency domain, and modulation symbols can be sent using SC-FDM in the time domain. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers can depend on the system bandwidth. The minimum resource allocation, called a resource block (RB), can be 12 consecutive subcarriers. The system bandwidth can also be divided into subbands. For example, a subband can cover multiple RBs. NR can support a basic subcarrier spacing (SCS) of 15KHz, and other SCSs (e.g., 30KHz, 60KHz, 120KHz, 240KHz, etc.) can be defined relative to the basic SCS.

[0058] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified with the frequency range names FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. Similar naming issues sometimes arise with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0059] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz–24.25 GHz). The frequency bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend the characteristics of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations above 52.6 GHz. For example, three higher operating bands have been identified as the frequency range designations FR4a or FR4-1 (52.6 GHz–71 GHz), FR4 (52.6 GHz–114.25 GHz), and FR5 (114.25 GHz–300 GHz). Each of these higher frequency bands falls within the EHF band.

[0060] In view of the above, unless otherwise specifically stated, it should be understood that if the term "sub-6 GHz" or the like is used herein, it can be broadly referred to as a frequency that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, it can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band.

[0061] Figure 3 300 is a diagram showing an example of a frame format for NR. The transmission timeline for each of DL and UL can be divided into units of radio frames. Each radio frame can have a predetermined duration (e.g., 10ms) and can be divided into 10 subframes with indices 0 to 9, each subframe being 1ms. Each subframe can include a variable number of slots (e.g., 1, 2, 4, 8, 16... slots), depending on the SCS. Each slot can include a variable number of symbol periods (e.g., 7 or 14 symbols), depending on the SCS. An index can be assigned to the symbol period in each slot. A microslot (which can be referred to as a subslot structure) refers to a TTI with a duration less than a slot (e.g., 2, 3, or 4 symbols). Each symbol in a slot can indicate a link direction (e.g., DL, UL, or flexible) for data transmission, and the link direction for each subframe can be dynamically switched. The link direction can be based on the slot format. Each slot can include DL / UL data and DL / UL control information.

[0062] Example Techniques for Request Scheduling

[0063] Beam reliability may affect the coverage of a unicast channel (e.g., in frequency range 2 (FR2)). In some cases, a narrow unicast beam may become weak or may be affected by partial shadowing. Certain aspects provide techniques for establishing a certain performance level for a unicast channel, even though the weaker beam is still active. In addition, certain aspects provide techniques for a UE to trigger a channel state information (CSI) operation so that a base station (BS) can use reliable CSI feedback to decide on a new beam assignment. In some cases, the UE may detect a coverage problem earlier than the BS and may take one or more actions to enhance the coverage of the active beam. Certain aspects of the present disclosure relate to techniques for coverage enhancement for a scheduling request (SR) or indicated by an SR, as described in more detail herein.

[0064] Figure 4 4 is a flow diagram illustrating example operations 400 for wireless communications in accordance with certain aspects of the present disclosure. Operations 400 may be performed, for example, by a BS (eg, such as BS 110a in wireless communication network 100).

[0065] Operation 400 may be implemented as a processor on one or more processors (e.g., Figure 2 In addition, the BS may transmit and receive signals in operation 400, for example, through one or more antennas (e.g., Figure 2 In some aspects, the transmission and / or reception of signals by the BS may be implemented via a bus interface of one or more processors (eg, the controller / processor 240) for obtaining and / or outputting signals.

[0066] Operations 400 may begin at block 405 with the BS receiving an SR from a UE requesting resource allocation for data transmission. At block 410, the BS may send an indication to the UE indicating resource allocation for data transmission, wherein the indication is generated based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration. In certain aspects, the indication may include downlink control information (DCI).

[0067] Figure 5 5 is a flow diagram illustrating example operations 500 for wireless communications in accordance with certain aspects of the present disclosure. For example, the operations 500 may be performed by a UE (eg, such as UE 120a in the wireless communications network 100).

[0068] Operation 500 may be an operation performed by the UE that is complementary to operation 400 performed by the BS. Operation 500 may be implemented as a processor (eg, Figure 2In addition, the UE may transmit and receive signals in operation 500, for example, through one or more antennas (e.g., Figure 2 In some aspects, the UE may transmit and / or receive signals via a bus interface of one or more processors (eg, controller / processor 280) for obtaining and / or outputting signals.

[0069] Operation 500 may begin at box 505 with the UE sending an SR to the BS to request resource allocation for data transmission, wherein the SR is selected between at least one coverage-enhanced SR configuration (also referred to as a coverage-enhanced SR configuration) and another SR configuration (also referred to as a conventional SR configuration or conventional SR) for requesting resource allocation for data transmission at the UE.

[0070] According to certain aspects, a coverage-enhanced SR configuration may include multiple coverage-enhanced SR configurations. The type of each coverage-enhanced SR configuration in the multiple coverage-enhanced SR configurations may be associated with a reason for selecting at least one coverage-enhanced SR configuration over another SR configuration. In some cases, a coverage-enhanced SR configuration may be a configuration for SR transmission with enhanced coverage. For example, a coverage-enhanced SR configuration may include a repetition of a conventional SR. In some cases, a coverage-enhanced SR may indicate to the BS to take one or more actions to enhance coverage (or scheduling of data transmission) of a data transmission (e.g., a physical uplink shared channel (PUSCH)). For example, a coverage-enhanced SR may indicate to the BS to apply repetition to a physical downlink control channel (PDCCH) transmission. In another example, a coverage-enhanced SR may indicate to the BS to trigger CSI-RS transmission to enhance coverage of a data transmission.

[0071] One type of coverage enhancing SR configuration may be used when experiencing degraded channel quality. Another type of coverage enhancing SR configuration may be used if there is no response from the BS.

[0072] In certain aspects, a coverage-enhanced SR configuration may be configured at a UE to request resource allocation on a channel experiencing degraded channel quality. In certain aspects, a coverage-enhanced SR configuration may be configured at a UE to request resource allocation in the absence of a response to a SR from a BS.

[0073] At block 510, the UE receives an indication of resource allocation for data transmission. In certain aspects, the indication may include downlink control information (DCI).

[0074] Figure 66 is a flow diagram illustrating example operations 600 performed by a BS for responding to a scheduling request, in accordance with certain aspects of the present disclosure. Operations 600 may be performed, for example, by BS 110a in wireless communication network 100.

[0075] Operation 600 may be implemented as a processor on one or more processors (e.g., Figure 2 In addition, the BS may transmit and receive signals in operation 400, for example, through one or more antennas (e.g., Figure 2 In some aspects, the transmission and / or reception of signals by the BS may be implemented via a bus interface of one or more processors (eg, the controller / processor 240) for obtaining and / or outputting signals.

[0076] Operations 600 may begin at block 605 with the BS receiving an SR from a UE requesting resource allocation for data transmission. At block 610, the BS may determine whether the SR is according to a coverage enhancement SR configuration (also referred to as a coverage enhancement SR configuration) or another SR configuration (e.g., a conventional SR configuration). At block 615, the BS may generate a DCI indicating the resource allocation for data transmission, and at block 620, send the DCI to the UE.

[0077] Figure 7 7 is a flow diagram illustrating example operations 700 for requesting scheduling by a UE, in accordance with certain aspects of the present disclosure. For example, the operations 700 may be performed by a UE 120a in the wireless communication network 100.

[0078] Operation 700 may be performed by the UE and may be complementary to operation 600 performed by the BS. Operation 700 may be implemented as a processor (eg, Figure 2 In addition, the UE may transmit and receive signals in operation 700, for example, through one or more antennas (e.g., Figure 2 In some aspects, the UE may transmit and / or receive signals via a bus interface of one or more processors (eg, controller / processor 280) for obtaining and / or outputting signals.

[0079] Operations 700 may begin at block 705 with the UE selecting between a coverage-enhancing SR configuration (also referred to as a coverage-enhanced SR configuration) and another SR configuration (e.g., also referred to as “conventional SR”) for requesting resource allocation for data transmission at the UE. For example, the coverage-enhancing SR configuration may be configured at the UE to request resource allocation on a channel experiencing degraded channel quality.

[0080] In some cases, a coverage-enhanced SR configuration may be a configuration for SR transmission with enhanced coverage. For example, a coverage-enhanced SR configuration may include a repetition of a conventional SR. In some cases, a coverage-enhanced SR may instruct the BS to take one or more actions to enhance coverage of a data transmission (or scheduling of a data transmission). For example, a coverage-enhanced SR may indicate to the base station to trigger CSI RS transmission to enhance coverage of a data transmission.

[0081] At block 710, the UE generates a SR according to the selection, and sends the SR to the BS to request resource allocation for data transmission at block 715. At block 720, the UE receives a DCI indicating resource allocation for data transmission.

[0082] In some cases, a coverage-enhanced SR configuration may be associated with a different strategy for triggering beam failure recovery (BFR) than a conventional SR configuration, as described in more detail herein. For example, a strategy for triggering BFR for a coverage-enhanced SR configuration may include a strategy for triggering BFR after a single failed attempt to request scheduling using the coverage-enhanced SR configuration.

[0083] In certain aspects, the BS may configure the UE with multiple SR configurations, one of which may be a coverage enhanced SR configuration as described herein. For example, the BS may indicate different formats or types of SRs with different resources, transmission parameters, duty cycles, or any combination thereof. The BS may send an indication of a coverage enhanced SR configuration to the UE, while in other aspects, the configuration of the SR may be pre-configured (e.g., according to a standard) at the UE. The coverage enhanced SR configuration may have a different format than a conventional SR configuration, may be associated with different time or frequency resources for transmitting the corresponding SR (compared to a conventional SR configuration), may be associated with a different duty cycle for transmitting the corresponding SR (compared to a conventional SR configuration), may be associated with different transmission parameters (e.g., transmit power) for transmitting the corresponding SR (compared to a conventional SR configuration), or any combination thereof. For example, in some cases, the timing for transmission of a coverage enhanced SR may be less frequent than the timing for a conventional SR.

[0084] In some aspects, a UE may be configured with a conventional SR and a coverage enhancement SR option. The use of a coverage enhancement SR by the UE may be implicitly interpreted as a request for coverage enhancement for other channels or processes. For example, as described herein, a coverage enhancement SR may trigger a pre-configured CSI-RS process, or may indicate to the BS that resources are allocated to provide enhanced coverage. In another example, a coverage enhancement SR may trigger a repetition of a PDCCH transmission by the BS. Thus, the UE may monitor the repetition of the PDCCH from the BS.

[0085] In some cases, as described herein, the coverage-enhanced SR may be pre-configured at the UE (e.g., according to a standard). In other cases, the coverage-enhanced SR may be configured by the BS. In certain aspects, the coverage-enhanced SR (e.g., pre-configured at the UE or configured by the BS) may be activated by the BS (e.g., using a DCI).

[0086] Figure 8 8 is a flow diagram illustrating example operations 800 for configuring and activating a coverage enhancing SR in accordance with certain aspects of the present disclosure. As shown, a UE 802 (e.g., such as UE 120a in wireless communication network 100) may optionally receive a message 806 (e.g., a radio resource control (RRC) message) indicating configuration for a coverage enhancing SR from a BS 804 (e.g., such as BS 110a in wireless communication network 100). The UE 802 may then receive a message 808 activating the coverage enhancing SR, thereby allowing the UE 802 to use the coverage enhancing SR in the event of degraded channel quality or when there is a lack of response from the BS 804 after sending more than one conventional SR. In some cases, the message 808 may deactivate the conventional SR configuration at the UE 802. For example, the network may determine that the UE 802 should use the coverage enhancing SR and may deactivate the conventional SR at the UE 802 accordingly. At block 810, the UE 802 may select between a regular SR and a coverage-enhanced SR and accordingly send a coverage-enhanced SR 812. The BS 804 and the UE 802 may then perform coverage enhancement 814 as described herein. The BS 804 may send an indication 816 (e.g., a DCI, a medium access control (MAC) control element (CE), or another dynamic indication) to the UE indicating resource allocation for data transmission. In some cases, the indication may indicate scheduling of CSI-RS transmissions. In some cases, the indication may indicate some change in the BS 804's transmission of the indication (e.g., repetition of a PDCCH transmission) and the UE 802's monitoring of the indication.

[0087] In some cases, there may be different rules (e.g., policies) for triggering beam failure recovery (BFR) based on unsuccessful trials of each type of SR. For example, a single unsuccessful trial of a coverage-enhanced SR may trigger BFR, while multiple unsuccessful trials of a conventional SR may trigger BFR. The rules for triggering BFR (based on the history of different types of SR trials) may be configured by the UE. In some cases, a coverage-enhanced SR may serve as an intermediate stage between a conventional SR and triggering BFR, as described in more detail herein. For example, after a certain number of unsuccessful trials of a conventional SR, the UE may attempt a coverage-enhanced SR before triggering BFR.

[0088] Fig. 9 9 is a flow diagram illustrating example operations 900 for triggering BFR in accordance with certain aspects of the present disclosure. As shown, a UE 902 (e.g., such as UE 120a in wireless communication network 100) may send a single conventional SR or multiple conventional SRs to a BS 904 (e.g., such as BS 110a in wireless communication network 100). For example, UE 902 may send conventional SR 1 to conventional SR n, where n is an integer equal to or greater than 1. At block 910, UE 902 may determine that an attempt to request scheduling through a conventional SR has failed, and therefore, UE 902 may transition to requesting resource allocation using a coverage-enhancing SR 912. For example, once a threshold number of scheduling attempts using a conventional SR have failed, UE 902 may send a coverage-enhancing SR. If an attempt to request scheduling using a coverage-enhancing SR also fails, UE 902 may initiate BFR. For example, as shown, UE 902 may send a BFR request (BFRQ) 914 to initiate a BFR procedure 916.

[0089] Fig.10 A communication device 1000 is shown, which may include a processor configured to perform operations for the techniques disclosed herein (eg, Figure 4 1000 (e.g., corresponding to functional unit components). The communication device 1000 includes a processing system 1002 coupled to a transceiver 1008 (e.g., a transmitter and / or a receiver). The transceiver 1008 is configured to send and receive signals for the communication device 1000 via an antenna 1010, such as various signals as described herein. The processing system 1002 can be configured to perform processing functions for the communication device 1000, including processing signals received and / or to be transmitted by the communication device 1000.

[0090] The processing system 1002 includes a processor 1004 coupled to a computer-readable medium / memory 1012 via a bus 1006. In some aspects, the computer-readable medium / memory 1012 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 1004, cause the processor 1004 to perform Figure 4 1004 may include a processor 1004 that performs the operations shown in 1004 or other operations for performing various techniques for beam switching discussed herein. Figure 2 One or more components of the BS 110a, such as, for example, the controller / processor 240, the transmit processor 220, the receive processor 238, etc. In addition, in some aspects, the computer-readable medium 1012 may include reference Figure 2 One or more components of BS 110a, such as memory 242, etc.

[0091] In certain aspects, the computer-readable medium / memory 1012 stores code 1014 (e.g., an example of means for receiving) for receiving (e.g., for receiving an SR from a UE requesting resource allocation for data transmission) and code 1016 (e.g., an example of means for transmitting) for transmitting (e.g., for transmitting to the UE an indication indicating resource allocation for data transmission, wherein the indication is generated based on whether the SR is generated according to a coverage enhancement SR configuration or another SR configuration). In certain aspects, the processor 1004 has circuitry configured to implement the code stored in the computer-readable medium / memory 1012. The processor 1004 includes circuitry 1024 (e.g., an example of means for receiving) for receiving (e.g., for receiving from the UE an SR requesting resource allocation for data transmission) and circuitry 1026 (e.g., an example of means for transmitting) for transmitting (e.g., for transmitting to the UE an indication indicating resource allocation for data transmission, wherein the indication is generated based on whether the SR is generated according to a coverage enhancement SR configuration or another SR configuration).

[0092] Fig.11 A communication device 1100 is shown, which may include a device configured to perform operations for the techniques disclosed herein (eg, Figure 5 1100 includes various components (e.g., corresponding to functional unit components) of the operation 500 shown in FIG. 1101 . The communication device 1100 includes a processing system 1102 coupled to a transceiver 1108 (e.g., a transmitter and / or a receiver). The transceiver 1108 is configured to send and receive signals for the communication device 1100, such as the various signals described herein, via an antenna 1111. The processing system 1102 can be configured to perform processing functions for the communication device 1100, including processing signals received and / or to be transmitted by the communication device 1100.

[0093] The processing system 1102 includes a processor 1104 coupled to a computer-readable medium / memory 1112 via a bus 1106. In some aspects, the computer-readable medium / memory 1112 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 1104, cause the processor 1104 to perform Figure 5 104 may include a processor 1104 that performs the operations shown in 104 or other operations for performing various techniques for beam switching discussed herein. Figure 2 One or more components of the UE 120a, such as the controller / processor 280, the transmit processor 264, the receive processor 258, etc. In addition, in some aspects, the computer-readable medium 1112 may include reference Figure 2 One or more components of UE 120a, such as memory 282, etc.

[0094] In some aspects, the computer-readable medium / memory 1112 stores code 1114 (e.g., an example of a means for sending) for sending (e.g., sending an SR to a BS to request resource allocation for data transmission, wherein the SR is a selection between at least one coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at a UE) and code 1116 (e.g., an example of a means for receiving) for receiving (e.g., receiving an indication indicating resource allocation for data transmission). In some aspects, the computer-readable medium / memory 1112 optionally stores code 1118 (e.g., an example of a means for triggering) for triggering (e.g., triggering BFR). In some aspects, the processor 1104 has circuitry configured to implement the code stored in the computer-readable medium / memory 1112. Processor 1104 includes circuitry 1124 (e.g., an example of a means for sending) for sending (e.g., sending an SR to a BS to request resource allocation for data transmission, wherein the SR is a selection between at least one coverage enhancement SR configuration and another SR configuration for requesting resource allocation for data transmission at a UE) and circuitry 1126 (e.g., an example of a means for receiving) for receiving (e.g., receiving an indication indicating resource allocation for data transmission). In some aspects, processor 1104 optionally includes circuitry 1128 (e.g., an example of a means for triggering).

[0095] The transceiver 1008 or 1108 may provide a unit for receiving or transmitting information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and SR-related information, etc.). The information may be communicated to other components of the communication device 1000 or 1100. The transceiver 1008 or 1108 may be a reference Figure 2 Examples of various aspects of the transceiver 254 are described. Antenna 1010 or 1110 may correspond to a single antenna or a set of antennas. Transceiver 1008 or 1108 may provide a means for transmitting signals generated by other components of communication device 1000 or 1100.

[0096] Schedule manager 112 or 122 may support wireless communications according to examples as disclosed herein.

[0097] The scheduling manager 112 or 122 may be an example of a means for performing various aspects described herein. The scheduling manager 112 or 122 or its subcomponents may be implemented in hardware (e.g., in an uplink resource management circuit). The circuit may include a processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0098] In another implementation, the scheduling manager 112 or 122 or its subcomponents may be implemented in code executed by a processor (e.g., as configuration management software or firmware) or any combination thereof. If implemented in code executed by a processor, the functions of the scheduling manager 112 or 122 or its subcomponents may be performed by a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device.

[0099] In some examples, schedule manager 112 or 122 may be configured to perform various operations (eg, receive, determine, transmit) using or otherwise cooperating with transceiver 108 or 118 .

[0100] The scheduling manager 112 or 122 or its subcomponents can be physically located in various locations, including being distributed so that parts of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the scheduling manager 112 or 122 or its subcomponents can be separate and distinct components. In some examples, according to various aspects of the present disclosure, the scheduling manager 112 or 122 or its subcomponents can be combined with one or more other hardware components (including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations).

[0101] Sample Clauses

[0102] Clause 1: A method for wireless communication by a user equipment (UE), comprising: sending a scheduling request (SR) to a base station (BS) to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhanced SR configuration and another SR configuration for requesting resource allocation for data transmission at the UE; and receiving an indication of the resource allocation for data transmission.

[0103] Clause 2: The method of clause 1, wherein the indication comprises downlink control information (DCI).

[0104] Clause 3: A method as described in clause 1 or 2, wherein one of the at least one coverage enhancing SR configuration is configured at the UE for requesting resource allocation on a channel experiencing degraded channel quality.

[0105] Clause 4: A method as set forth in any of clauses 1-3, wherein one of the at least one coverage enhancing SR configuration is configured at the UE to request resource allocation in the absence of a response to the SR from the BS.

[0106] Clause 5: A method as described in any of clauses 1-4, wherein at least one coverage-enhanced SR configuration includes multiple coverage-enhanced SR configurations, and wherein the type of each coverage-enhanced SR configuration in the multiple coverage-enhanced SR configurations is associated with a reason for selecting at least one coverage-enhanced SR configuration over another SR configuration.

[0107] Clause 6: A method as described in any of clauses 1-5, wherein the SR is configured according to a coverage enhancement SR and triggers a channel state information (CSI)-reference signal (RS) transmission to the BS.

[0108] Clause 7: A method as set forth in any of clauses 1-6, further comprising: receiving an indication of a coverage enhanced SR configuration from a BS.

[0109] Clause 8: A method as described in any of clauses 1-7, wherein: at least one coverage enhancing SR configuration has a different format than another SR configuration; at least one coverage enhancing SR configuration is associated with different time or frequency resources for transmission of the corresponding SR compared to another SR configuration; at least one coverage enhancing SR configuration is associated with a different duty cycle for transmission of the corresponding SR compared to another SR configuration; at least one coverage enhancing SR configuration is associated with different transmission parameters for transmission of the corresponding SR compared to another SR configuration; and or any combination thereof.

[0110] Clause 9: A method as described in any of clauses 1-8, wherein at least one coverage-enhanced SR configuration is associated with a policy for triggering beam failure recovery (BFR) that is different from a policy for triggering BFR for another SR configuration.

[0111] Clause 10: The method of clause 9, wherein the policy for triggering BFR for at least one coverage-enhanced SR configuration comprises a policy for triggering BFR after a single failed attempt to request scheduling using the at least one coverage-enhanced SR configuration.

[0112] Clause 11: A method as set forth in any of clauses 1-10, wherein at least one coverage-enhanced SR configuration is selected following one or more failed attempts to request scheduling via another SR configuration.

[0113] Clause 12: The method of clause 11, further comprising: triggering BFR after another attempt to request scheduling using the coverage enhanced SR configuration fails.

[0114] Clause 13: A method as described in clause 11 or 12, wherein the one or more failed attempts comprises a number of failed attempts configured at the UE.

[0115] Clause 14: A method as set out in any of clauses 1-13, further comprising: receiving an indication for activating at least one coverage enhancing SR configuration at the UE.

[0116] Clause 15: A method as described in clause 14, wherein receiving an indication for activating at least one coverage enhancing SR configuration comprises: receiving downlink control information (DCI) indicating activation of at least one coverage enhancing SR configuration.

[0117] Clause 16: A method as set forth in any of clauses 1-15, wherein the SR according to the coverage-enhanced SR configuration comprises a repetition of another SR configuration.

[0118] Clause 17: A method for wireless communication by a base station (BS), comprising: receiving a scheduling request (SR) from a user equipment (UE) requesting resource allocation for data transmission; and sending an indication to the UE indicating the resource allocation for data transmission, wherein the indication is based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration.

[0119] Clause 18: The method of clause 17, wherein the indication comprises downlink control information (DCI).

[0120] Clause 19: A method as described in clause 17 or 18, wherein at least one coverage-enhancing SR configuration is configured for requesting resource allocation on a channel experiencing degraded channel quality.

[0121] Clause 20: A method as set out in any of clauses 17-19, wherein at least one coverage-enhanced SR configuration is configured to request resource allocation in the absence of a response by the BS to a SR sent by the UE.

[0122] Clause 21: A method according to any of clauses 17-20, wherein the SR is configured according to at least one coverage enhancing SR and indicates to the BS to trigger channel state information (CSI)-reference signal (RS) transmission to enhance the coverage of data transmission.

[0123] Clause 22: A method as set forth in any of clauses 17-21, further comprising: sending an indication of at least one coverage enhancing SR configuration to the UE.

[0124] Clause 23: A method as described in any of clauses 17-22, wherein: at least one coverage enhancing SR configuration has a different format than another SR configuration; at least one coverage enhancing SR configuration is associated with different time or frequency resources for transmission of the corresponding SR compared to another SR configuration; at least one coverage enhancing SR configuration is associated with a different duty cycle for transmission of the corresponding SR compared to another SR configuration; at least one coverage enhancing SR configuration is associated with different transmission parameters for transmission of the corresponding SR compared to another SR configuration; and or any combination thereof.

[0125] Clause 24: A method as set out in any of clauses 17-23, further comprising: sending an indication to the UE to activate at least one coverage enhancing SR configuration at the UE.

[0126] Clause 25: A method according to clause 26, wherein sending an indication for activating at least one coverage enhancing SR configuration comprises sending downlink control information (DCI) indicating activation of at least one coverage enhancing SR configuration.

[0127] Clause 26: A method as set forth in any of clauses 17-25, wherein the SR according to at least one coverage enhancing SR configuration comprises a repetition of another SR configuration.

[0128] Clause 27: A method for wireless communication by a user equipment (UE), comprising: selecting at the UE between a coverage enhanced scheduling request (SR) configuration for requesting resource allocation for data transmission and another SR configuration; generating the SR based on the selection; sending the SR to a base station (BS) to request resource allocation for data transmission; and receiving downlink control information (DCI) indicating the resource allocation for data transmission.

[0129] Clause 28: A method as set forth in clause 27, wherein the coverage-enhanced SR configuration is configured at the UE for requesting resource allocation on a channel experiencing degraded channel quality.

[0130] Clause 29: A method as described in clause 27 or 28, wherein the coverage-enhanced SR configuration comprises a configuration for SR transmission with enhanced coverage.

[0131] Clause 30: A method as set out in any of clauses 27-29, wherein the SR is configured in accordance with a coverage enhancement SR and instructs the BS to take one or more actions to enhance coverage of data transmission.

[0132] Clause 31: A method as described in any of clauses 27-30, wherein the SR is configured according to a coverage enhancement SR and indicates to the BS to trigger channel state information (CSI)-reference signal (RS) transmission to enhance the coverage of data transmission.

[0133] Clause 32: A method as set forth in any of clauses 27-31, further comprising: receiving an indication of a coverage enhanced scheduling request (SR) configuration from the BS.

[0134] Clause 33: A method as described in any of clauses 27-32, wherein: the coverage enhanced SR configuration has a different format than another SR configuration; the coverage enhanced SR configuration is associated with different time or frequency resources for transmission of the corresponding SR compared to the other SR configuration; the coverage enhanced SR configuration is associated with a different duty cycle for transmission of the corresponding SR compared to the other SR configuration; the coverage enhanced SR configuration is associated with different transmission parameters for transmission of the corresponding SR compared to the other SR configuration; and or any combination thereof.

[0135] Clause 34: A method as described in any of clauses 27-33, wherein a coverage-enhanced SR configuration is associated with a different strategy for triggering beam failure recovery (BFR) compared to another SR configuration.

[0136] Clause 35: The method of clause 34, wherein the policy for triggering BFR for the coverage-enhanced SR configuration comprises a policy for triggering BFR after a single failed attempt to request scheduling using the coverage-enhanced SR configuration.

[0137] Clause 36: A method as set forth in any of clauses 27-35, wherein selecting comprises selecting the overlay enhanced SR configuration following one or more failed attempts to request scheduling via another SR configuration.

[0138] Clause 37: The method of clause 37, further comprising: triggering BFR after another attempt to request scheduling using the coverage enhanced SR configuration fails.

[0139] Clause 38: A method as described in clause 36 or 37, wherein the one or more failed attempts comprises a number of failed attempts as configured at the UE.

[0140] Clause 39: A method as set out in any of clauses 27-38, further comprising: receiving an indication for activating a coverage enhancing SR configuration at the UE.

[0141] Clause 40: The method of clause 39, wherein receiving an indication for activating the coverage enhanced SR configuration comprises receiving downlink control information (DCI) indicating activation of the coverage enhanced SR configuration.

[0142] Clause 41: A method as set forth in any of clauses 27-40, wherein the SR according to the coverage enhanced SR configuration comprises a repetition of another SR configuration.

[0143] Clause 42: A method for wireless communication by a base station (BS), comprising: receiving a scheduling request (SR) for requesting resource allocation for data transmission from a user equipment (UE); determining whether the SR is configured according to a coverage enhanced scheduling request (SR) or another SR configuration; generating downlink control information (DCI) indicating resource allocation for data transmission; and sending the DCI to the UE.

[0144] Clause 43: The method of clause 42, wherein the coverage enhanced SR configuration is configured to request resource allocation on a channel experiencing degraded channel quality.

[0145] Clause 44: A method as described in clause 42 or 43, wherein the coverage-enhanced SR configuration comprises a configuration for SR transmission with enhanced coverage.

[0146] Clause 45: A method as set out in any of clauses 42-44, wherein the SR is configured in accordance with a coverage enhancement SR and instructs the BS to take one or more actions to enhance coverage of data transmission.

[0147] Clause 46: A method as described in any of clauses 42-45, wherein the SR is configured according to a coverage enhancement SR and indicates to the BS to trigger channel state information (CSI)-reference signal (RS) transmission to enhance the coverage of data transmission.

[0148] Clause 47: A method as set forth in any of clauses 42-46, further comprising: sending an indication of a coverage enhanced SR configuration to the UE.

[0149] Clause 48: A method according to any of clauses 42-47, wherein: the coverage enhanced SR configuration has a different format from another SR configuration; the coverage enhanced SR configuration is associated with different time or frequency resources for transmission of the corresponding SR compared to the other SR configuration; the coverage enhanced SR configuration is associated with a different duty cycle for transmission of the corresponding SR compared to the other SR configuration; the coverage enhanced SR configuration is associated with different transmission parameters for transmission of the corresponding SR compared to the other SR configuration; and or any combination thereof.

[0150] Clause 49: A method as set forth in any of clauses 42-48, further comprising: sending an indication to the UE for activating the coverage enhancing SR configuration at the UE.

[0151] Clause 50: A method as described in clause 49, wherein sending an indication for activating the coverage enhanced SR configuration includes: sending downlink control information (DCI) indicating activation of the coverage enhanced SR configuration.

[0152] Clause 51: A method as set forth in any of clauses 42-50, wherein the SR according to the coverage enhanced SR configuration comprises a repetition of another SR configuration.

[0153] Clause 52: An apparatus comprising: a memory; and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method as described in any of clauses 1-51.

[0154] Clause 53: An apparatus comprising means for performing the method according to any one of clauses 1-51.

[0155] Clause 54: A non-transitory computer-readable medium comprising executable instructions that, when executed by one or more processors of an apparatus, cause the apparatus to perform a method as described in any of clauses 1-51.

[0156] Additional considerations

[0157] The techniques described herein may be used for various wireless communication technologies, such as NR (e.g., 5G NR), 3GPP Long Term Evolution (LTE), Advanced LTE (LTE-A), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms "network" and "system" are often used interchangeably. A CDMA network may implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, and the like. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. cdma2000 covers IS-2000, IS-95, and IS-856 standards. A TDMA network may implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA networks may implement radio technologies such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). cdma2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). NR is an emerging wireless communication technology under development.

[0158] In 3GPP, the term "cell" may refer to the coverage area of ​​a Node B (NB) and / or a NB subsystem serving the coverage area, depending on the context in which the term is used. In NR systems, the term "cell" and BS, next generation Node B (gNB or gNodeB), access point (AP), distributed unit (DU), carrier or transmit receive point (TRP) may be interchangeable. A BS may provide communication coverage for macro cells, pico cells, femto cells and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. 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), UEs for users in a residence, etc.). 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 called a femto BS or a home BS.

[0159] UE may also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, a customer premises equipment (CPE), a cellular phone, 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, an appliance, a medical device or medical apparatus, a biometric sensor / device, a wearable device (such as a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet, etc.)), an entertainment device (e.g., a music device, a video device, a satellite radio unit, etc.), a vehicle 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. Some UEs may be considered machine type communication (MTC) devices or evolved MTC (eMTC) devices. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a BS, another device (e.g., a remote device), or some other entity. A wireless node can provide, for example, a connection to a network (e.g., a wide area network such as the Internet or a cellular network) or to a network via a wired or wireless communication link. Some UEs can be considered Internet of Things (IoT) devices, which can be narrowband IoT (NB-IoT) devices.

[0160] In some examples, access to the air interface can be scheduled. The scheduling entity (e.g., BS) allocates resources for communication between some or all devices and apparatuses in its service area or cell. The scheduling entity may be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communications, the subordinate entity utilizes the resources allocated by the scheduling entity. The BS is not the only entity that can be used as a scheduling entity. In some examples, the UE may be used as a scheduling entity, and resources may be scheduled for one or more subordinate entities (e.g., one or more other UEs), and other UEs may utilize the resources scheduled by the UE for wireless communication. In some examples, the UE may be used as a scheduling entity in a peer-to-peer (P2P) network or in a mesh network. In the mesh network example, in addition to communicating with the scheduling entity, the UEs may also communicate directly with each other.

[0161] The method disclosed herein includes one or more steps or actions for implementing the method. These method steps and / or actions may be interchangeable with each other without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the order and / or use of specific steps and / or actions may be modified without departing from the scope of the claims.

[0162] As used herein, a phrase referring to "at least one of" 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 any combination of a, b, c, ab, ac, bc, and abc, as well as multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc or any other ordering of a, b, and c).

[0163] As used herein, the term "determining" includes a wide variety of actions. For example, "determining" may include calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, a database, or another data structure), ascertaining, and the like. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. Furthermore, "determining" may include resolving, selecting, choosing, establishing, and the like.

[0164] The previous description is provided to enable those skilled in the art to implement the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the overall principles defined herein can be applied to other aspects. Therefore, the claims are not intended to be limited to the various aspects shown herein, but to be given the full scope consistent with the language expression of the claims, wherein unless specifically stated otherwise, references to singular elements are not intended to mean "one and only one", but "one or more". Unless otherwise explicitly stated, the term "some" refers to one or more. All structural and functional equivalents of the elements of the various aspects described throughout the present disclosure are expressly incorporated herein by reference and are intended to be included by the claims, and these structural and functional equivalents are known or will be known to those skilled in the art. In addition, there is no disclosure herein that is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recorded in the claims. No claim element is to be interpreted according to the terms of 35 U.S.C. § 112, paragraph 6, unless the element is explicitly recorded using the phrase "unit for...", or in the case of a method claim, the element is recorded using the phrase "step for...".

[0165] The various operations of the methods described above may be performed by any suitable unit capable of performing the corresponding functions. These units may include various hardware and / or software components and / or modules, including but not limited to: circuits, application specific integrated circuits (ASICs) or processors. Typically, where there are operations shown in the accompanying drawings, those operations may have corresponding paired functional unit components with similar numbers.

[0166] The various illustrative logic blocks, modules, and circuits described in conjunction with the present disclosure may be implemented or performed using a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration.

[0167] If implemented in hardware, an example hardware configuration may include a processing system in a wireless node. The processing system may be implemented using a bus architecture. Depending on the specific application and overall design constraints of the processing system, the bus may include any number of interconnecting buses and bridges. The bus may connect various circuits including a processor, a machine-readable medium, and a bus interface. In addition, the bus interface may also be used to connect a network adapter to the processing system via the bus. The network adapter may be used to implement the signal processing functions of the PHY layer. In a user terminal (see Figure 1 ), a user interface (e.g., a keypad, display, mouse, joystick, etc.) may also be connected to the bus. The bus may also connect various other circuits, such as timing sources, peripherals, voltage regulators, power management circuits, etc., which are well known in the art and therefore will not be described further. The processor may be implemented using one or more general and / or special purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits that can execute software. Those skilled in the art will recognize how to best implement the described functionality for the processing system depending on the specific application and the overall design constraints imposed on the entire system.

[0168] If implemented with software, the functions may be stored on or transmitted through a computer-readable medium as one or more instructions or codes. Whether referred to as software, firmware, middleware, microcode, hardware description language or other terms, software should be broadly interpreted as meaning instructions, data or any combination thereof. Computer-readable media include both computer storage media and communication media, and communication media include any media that helps to transfer a computer program from one place to another. The processor may be responsible for managing the bus and general processing, which includes executing software modules stored on a machine-readable storage medium. The computer-readable storage medium may be coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. In an alternative, the storage medium may be a component of the processor. For example, the machine-readable medium may include a transmission line, a carrier modulated by data, and / or a computer-readable storage medium having instructions stored thereon that is separated from a wireless node, all of which may be accessed by the processor through a bus interface. Alternatively or in addition, the machine-readable medium or any part thereof may be integrated into the processor, for example, the case may be a cache and / or a general register stack. For example, examples of machine-readable storage media may include RAM (random access memory), flash memory, ROM (read-only memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory), EEPROM (electrically erasable programmable read-only memory), registers, magnetic disks, optical disks, hard drives, or any other suitable storage media, or any combination thereof. Machine-readable media may be embodied in a computer program product.

[0169] A software module may include a single instruction or many instructions, and may be distributed over several different code segments, distributed among different programs, and distributed across multiple storage media. A computer-readable medium may include multiple software modules. A software module includes instructions that, when executed by a device such as a processor, cause a processing system to perform various functions. A software module may include a sending module and a receiving module. Each software module may be located in a single storage device or distributed across multiple storage devices. For example, when a triggering event occurs, a software module may be loaded from a hard drive into a RAM. During the execution of a software module, a processor may load some of the instructions into a cache to increase access speed. Subsequently, one or more cache lines may be loaded into a general register stack to be executed by a processor. It will be understood that when the function of a software module is mentioned below, this function is implemented by a processor when executing instructions from the software module.

[0170] Additionally, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (e.g., infrared (IR), radio and microwave), then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (e.g., infrared, radio and microwave) are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Optical disks, where magnetic disks typically reproduce data magnetically, and optical disks use lasers to reproduce data optically. Thus, in some aspects, computer-readable media may include non-transitory computer-readable media (e.g., tangible media). Additionally, for other aspects, computer-readable media may include transitory computer-readable media (e.g., signals). Combinations of the above should also be included within the scope of computer-readable media.

[0171] Thus, some aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include a computer-readable medium having instructions stored (and / or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein. For example, a computer program product for performing the operations described herein and Figure 4-5 The operations shown in the instructions.

[0172] In addition, it should be understood that the modules and / or other appropriate units for performing the methods and techniques described herein can be downloaded and / or otherwise obtained by the user terminal and / or base station where applicable. For example, such a device can be coupled to a server to facilitate the transmission of units for performing the methods described herein. Alternatively, the various methods described herein can be provided via a storage unit (e.g., RAM, ROM, physical storage media such as a compact disc (CD) or a floppy disk, etc.), so that the user terminal and / or base station can obtain the various methods after the storage unit is coupled to or provided to the device. In addition, any other appropriate technology for providing the methods and techniques described herein to the device can be used.

[0173] It is to be understood that the claims are not limited to the precise configuration and components shown above. Various modifications, changes and variations may be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.

Claims

1. A method for wireless communication by a user equipment (UE), comprising: sending a scheduling request (SR) to a base station (BS) to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancing SR configuration and another SR configuration for requesting the resource allocation for the data transmission at the UE; and receiving an indication of the resource allocation for the data transmission; Wherein, the at least one coverage-enhanced SR configuration is associated with a policy for triggering beam failure recovery (BFR) that is different from a policy for triggering BFR for the other SR configuration.

2. The method according to claim 1, wherein: The indication comprises downlink control information (DCI).

3. The method according to claim 1, wherein: One of the at least one coverage enhancing SR configuration is configured at the UE for requesting the resource allocation on a channel experiencing degraded channel quality.

4. The method according to claim 1, wherein: One of the at least one coverage enhancing SR configuration is configured at the UE to request the resource allocation in the absence of a response to the SR from the BS.

5. The method according to claim 1, wherein: The at least one coverage enhancing SR configuration comprises a plurality of coverage enhancing SR configurations, and wherein a type of each coverage enhancing SR configuration of the plurality of coverage enhancing SR configurations is associated with a reason for selecting the at least one coverage enhancing SR configuration over the other SR configuration.

6. The method according to claim 1, wherein: The SR is configured according to the coverage enhancement SR and indicates to the BS to trigger channel state information (CSI)-reference signal (RS) transmission.

7. The method according to claim 1, further comprising: An indication of the coverage enhanced SR configuration is received from the BS.

8. The method according to claim 1, wherein: The at least one coverage-enhanced SR configuration has a different format than the another SR configuration; The at least one coverage enhancing SR configuration is associated with different time or frequency resources for transmission of the corresponding SR compared to the another SR configuration; The at least one coverage enhancing SR configuration is associated with a different duty cycle for transmission of the corresponding SR compared to the another SR configuration; The at least one coverage enhancing SR configuration is associated with different transmission parameters for transmission of the corresponding SR compared to the another SR configuration; and or any combination thereof.

9. The method according to claim 1, wherein: The policy for triggering the BFR for the at least one coverage-enhanced SR configuration includes a policy for triggering the BFR after a single failed attempt to request scheduling using the at least one coverage-enhanced SR configuration.

10. The method according to claim 1, wherein: The at least one coverage-enhanced SR configuration is selected after one or more failed attempts to request scheduling via the another SR configuration.

11. The method according to claim 10, further comprising: After another attempt to request scheduling using the coverage enhanced SR configuration fails, BFR is triggered.

12. The method according to claim 10, wherein: The one or more failed attempts include a number of failed attempts configured at the UE.

13. The method according to claim 1, further comprising: An indication is received to activate the at least one coverage enhancing SR configuration at the UE.

14. The method according to claim 13, wherein: Receiving the indication for activating the at least one coverage enhanced SR configuration includes receiving downlink control information (DCI) indicating activation of the at least one coverage enhanced SR configuration.

15. The method according to claim 1, wherein: The SR according to the coverage-enhanced SR configuration comprises a repetition of the other SR configuration.

16. A method for wireless communication by a base station (BS), comprising: receiving a scheduling request (SR) from a user equipment (UE) requesting allocation of resources for data transmission; as well as sending an indication to the UE indicating the resource allocation for the data transmission, wherein the indication is generated based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration; Wherein, the at least one coverage-enhanced SR configuration is associated with a policy for triggering beam failure recovery (BFR) that is different from a policy for triggering BFR for the other SR configuration.

17. The method according to claim 16, wherein: The indication comprises downlink control information (DCI).

18. The method according to claim 16, wherein: The at least one coverage-enhancing SR configuration is configured for requesting the resource allocation on a channel experiencing degraded channel quality.

19. The method according to claim 16, wherein: The at least one coverage enhancing SR configuration is configured to request the resource allocation in the absence of a response by the BS to the SR sent by the UE.

20. The method according to claim 16, wherein: The SR is configured according to the at least one coverage enhancement SR and indicates triggering of channel state information (CSI)-reference signal (RS) transmission to the BS.

21. The method of claim 16, further comprising: An indication of the at least one coverage enhancing SR configuration is sent to the UE.

22. The method of claim 16, wherein: The at least one coverage-enhanced SR configuration has a different format than the another SR configuration; The at least one coverage enhancing SR configuration is associated with different time or frequency resources for transmission of the corresponding SR compared to the another SR configuration; The at least one coverage enhancing SR configuration is associated with a different duty cycle for transmission of the corresponding SR compared to the another SR configuration; The at least one coverage enhancing SR configuration is associated with different transmission parameters for transmission of the corresponding SR compared to the another SR configuration; and or any combination thereof.

23. The method of claim 16, further comprising: An indication is sent to the UE to activate the at least one coverage enhancing SR configuration at the UE.

24. The method according to claim 23, wherein: Sending the indication for activating the at least one coverage enhanced SR configuration includes sending downlink control information (DCI) indicating activation of the at least one coverage enhanced SR configuration.

25. The method of claim 16, wherein: The SR according to the at least one coverage enhancing SR configuration comprises a repetition of the another SR configuration.

26. An apparatus for wireless communication by a user equipment (UE), comprising: Memory; as well as one or more processors coupled to the memory, the memory and the one or more processors being configured to: sending a scheduling request (SR) to a base station (BS) to request resource allocation for data transmission, wherein the SR is selected between at least one coverage enhancing SR configuration and another SR configuration for requesting the resource allocation for the data transmission at the UE; and receiving an indication indicating the resource allocation for the data transmission; Wherein, the at least one coverage-enhanced SR configuration is associated with a policy for triggering beam failure recovery (BFR) that is different from a policy for triggering BFR for the other SR configuration.

27. The device according to claim 26, wherein: One of the at least one coverage enhancing SR configuration is configured at the UE for requesting the resource allocation on a channel experiencing degraded channel quality.

28. The device according to claim 26, wherein One of the at least one coverage enhancing SR configuration is configured at the UE to request the resource allocation in the absence of a response to the SR from the BS.

29. An apparatus for wireless communication by a base station (BS), comprising: Memory; as well as one or more processors coupled to the memory, the memory and the one or more processors being configured to: receiving a scheduling request (SR) for requesting resource allocation for data transmission from a user equipment (UE); and sending an indication to the UE indicating the resource allocation for the data transmission, wherein the indication is generated based on whether the SR is generated according to at least one coverage enhancement SR configuration or another SR configuration; Wherein, the at least one coverage-enhanced SR configuration is associated with a policy for triggering beam failure recovery (BFR) that is different from a policy for triggering BFR for the other SR configuration.

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