Wireless communication method, user equipment and network entity

Abstract

The invention relates to a wireless communication method, user equipment and a network entity. A method of wireless communication performed by a user equipment, UE, includes receiving radio resource control, RRC, signaling indicating that the UE is configured with one or more formats for transmitting a radio link control, RLC, status report, where the one or more formats include: a first format configured to indicate a sequence number of a downlink transmission using a first bit count, and a second format configured to indicate a sequence number of a downlink transmission using a second bit count; or a second format configured to indicate a sequence number of the downlink transmission using a second bit count greater than the first bit count; receiving a physical layer indication or a medium access control (MAC) layer indication indicating a format used by the UE for the RLC status report, wherein the indicated format is one of one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and transmitting the RLC status report using the indicated format.

Description

[0001] This application is a divisional application of the invention patent application with application number 202180016065.3, application date February 5, 2021, and invention name “Range extension of radio link control status report”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 982,630, filed on February 27, 2020, entitled “RANGE EXTENSION FOR RADIOLINK CONTROL STATUS REPORTING,” and U.S. Non-Provisional Patent Application No. 17 / 167,843, filed on February 4, 2021, entitled “RANGE EXTENSION FOR RADIO LINK CONTROL STATUS REPORTING,” which are hereby expressly incorporated herein by reference. Technical Field

[0004] Aspects of the present disclosure relate generally to wireless communications and techniques and apparatus for range extension of radio link control (RLC) status reporting. Background Art

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE) systems. LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0006] A wireless network may include multiple base stations (BSs) that may support communications for multiple user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A downlink (or forward link) refers to a communication link from a BS to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0007] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at municipal, national, regional and even global levels. NR (also known as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR aims to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards. These open standards use orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) on the downlink (DL), CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and support beamforming, multiple-input multiple-output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0008] In some aspects, a method of wireless communication performed by a user equipment (UE), includes: receiving radio resource control (RRC) signaling indicating one or more formats configured for the UE to send a radio link control (RLC) status report, wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to use a second bit count greater than the first bit count to indicate the sequence number of the downlink transmission; receiving a physical layer indication or a medium access control (MAC) layer indication indicating the format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and sending the RLC status report using the indicated format.

[0009] In some aspects, a user equipment (UE) for wireless communication comprises: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to: receive radio resource control (RRC) signaling indicating one or more formats configured for the UE to send a radio link control (RLC) status report, wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to use a second bit count greater than the first bit count to indicate the sequence number of the downlink transmission; receive a physical layer indication or a medium access control (MAC) layer indication indicating a format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and send the RLC status report using the indicated format.

[0010] In some aspects, a method of wireless communication performed by a network entity includes: sending radio resource control (RRC) signaling indicating one or more formats configured for sending radio link control (RLC) status reports to a user equipment (UE), wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to use a second bit count greater than the first bit count to indicate the sequence number of the downlink transmission; sending a physical layer indication or a medium access control (MAC) layer indication indicating the format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and receiving the RLC status report using the indicated format.

[0011] In some aspects, a network entity for wireless communications comprises: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to: send radio resource control (RRC) signaling indicating one or more formats configured for sending radio link control (RLC) status reports to a user equipment (UE), wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to use a second bit count greater than the first bit count to indicate the sequence number of a downlink transmission; send a physical layer indication or a medium access control (MAC) layer indication indicating a format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and receive the RLC status report using the indicated format.

[0012] Aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems and specifications substantially as described herein with reference to and illustrated by the figures and description.

[0013] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures to achieve the same purpose of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and methods of operation, and related advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description briefly summarized above may be obtained by reference to some aspects, some of which are shown in the accompanying drawings. However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and should not be considered as limiting the scope thereof, as the description may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0015] Figure 1 is a schematic diagram illustrating an example of a wireless network according to the present disclosure.

[0016] Figure 2 is a schematic diagram showing an example of a base station communicating with a UE in a wireless network according to the present disclosure.

[0017] Figure 3 is a schematic diagram showing an example of sending an RLC status report in a dual connectivity environment according to the present disclosure.

[0018] Figure 4 is a diagram illustrating an example of range extension for RLC status reporting according to the present disclosure.

[0019] Figure 5 is a diagram illustrating an example of range extension for RLC status reporting according to the present disclosure.

[0020] Figure 6 is a schematic diagram illustrating an example process performed, for example, by a user equipment according to the present disclosure.

[0021] Figure 7 is a schematic diagram illustrating an example process performed, for example, by a base station according to the present disclosure.

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

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

[0024] Fig.10 is a schematic diagram illustrating an example process performed, for example, by a user equipment according to the present disclosure. DETAILED DESCRIPTION

[0025] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method, which is practiced using other structures, functions, or structures and functions in addition to or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein can be embodied by one or more elements of the claims.

[0026] Several aspects of telecommunication systems will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0027] It should be noted that while various aspects may be described using terminology typically associated with 5G or NR radio access technologies (RATs), aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs beyond 5G (e.g., 6G).

[0028] Figure 1 is a schematic diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, among other examples. The wireless network 100 may include a plurality of base stations 110 (shown as BS110a, BS110b, BS110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE), and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0029] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS 110a may be a macro BS of macro cell 102a, BS 110b may be a pico BS of pico cell 102b, and BS 110c may be a femto BS 102c of a femto cell. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.

[0030] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces (such as direct physical connections or virtual networks) using any suitable transport network.

[0031] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown, a relay station 110d may communicate with the macro BS 110a and the UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.

[0032] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0033] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless backhaul or a wired backhaul.

[0034] UE 120 (e.g., 120a, 120b, 120c) can be dispersed in the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device or a satellite radio), 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 medium or a wired medium.

[0035] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node may provide connectivity or connectivity to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired communication link or a wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120 (such as a processor component, a memory component, etc.). In some aspects, the processor component and the memory component may be coupled together. For example, a processor component and / or a memory component. In some aspects, the processor component and the memory component may be coupled together. For example, a processor component (eg, one or more processors) and a memory component (eg, memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0036] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0037] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In such cases, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0038] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1) from 410 MHz to 7.125 GHz, and / or can communicate using an operating frequency band having a second frequency range (FR2) from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise expressly stated, it should be understood that the term "less than 6 GHz", etc., if used herein, can broadly represent frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the term "millimeter wave", etc., if used herein, can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than or equal to 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0039] As mentioned above, providing Figure 1As an example. Other examples may be related to Figure 1 Different than described.

[0040] Figure 2 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0041] At the base station 110, the transmit processor 220 may receive data from the data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) data for each UE based at least in part on the (multiple) MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). If applicable, a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and may provide T output symbol streams to T modulators (MOD) 232a through 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0042] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0043] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0044] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or may be included in one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmit and / or receive components (such as Figure 2 One or more antenna elements of one or more components).

[0045] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may also generate reference symbols for one or more reference signals. If applicable, the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna(s) 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 4-Figure 10 As described.

[0046] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna(s) 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 4-Figure 10 As described.

[0047] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) of the base station 110 may perform one or more techniques associated with range extension of RLC status reporting, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) may perform or direct e.g. Figure 6 The process of 600 Figure 7 The process of 700 Figure 8 The process of 800 Fig. 9 The process of 900 Fig.10 1000 and / or operations of other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example, Figure 6 The process of 600 Figure 7 The process 700 Figure 8 The process of 800 Fig. 9 The operation of process 900, Fig.10 1000, and / or operations of other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, interpreting instructions, etc. The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0048] In some aspects, the UE includes means for receiving RRC signaling indicating one or more formats that the UE is configured for sending RLC status reports; or means for sending RLC status reports using the indicated formats of the one or more formats or additional formats for sending RLC status reports, wherein the use of the indicated formats is based at least in part on the physical layer indication or the MAC layer indication. The UE components for performing the operations described herein may include, for example, one or more of the antenna 252, the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the modulator 254, the controller / processor 280, or the memory 282.

[0049] In some aspects, the UE comprises means for sending the RLC status report using a MAC layer signaling format.

[0050] In some aspects, the UE includes means for receiving one or more MAC control elements including a MAC layer indication, or means for receiving downlink control information including a physical layer indication.

[0051] In some aspects, the UE comprises means for sending one or more additional RLC status reports using an indicated format based at least in part on a physical layer indication or a MAC layer indication.

[0052] In some aspects, the UE includes means for receiving an indication to send a subsequent RLC status report using a different format.

[0053] In some aspects, the UE includes means for sending a request to change from an indicated format for sending a subsequent RLC status report, wherein receipt of an indication for sending the subsequent RLC status report using a different format is based at least in part on sending the request to change from the indicated format for sending the subsequent RLC status report.

[0054] In some aspects, the UE comprises means for configuring the UE with one or more formats based at least in part on received RRC signaling.

[0055] In some aspects, the UE includes means for generating an RLC status report having an indicated format based at least in part on receiving a physical layer indication or a MAC layer indication.

[0056] As mentioned above, providing Figure 2 As an example. Other examples may be related to Figure 2 Different than described.

[0057] Figure 3 3 is a schematic diagram illustrating an example 300 of sending an RLC status report in a dual connectivity environment according to the present disclosure. As shown, the UE, the first base station, and the second base station may communicate using one or more of a downlink transmission and an uplink transmission. In some aspects, the base station and the UE may be part of a wireless network.

[0058] The UE may communicate with the first base station using a first cell group (e.g., a master cell group (MCG)) and may communicate with the second base station using a second cell group (e.g., a secondary cell group (SCG)). In some aspects, the UE may communicate with the second base station using the MCG on one or more frequency bands in frequency range 1 (e.g., FR1) or other relatively low frequency bands (e.g., sub-6 GHz bands). In some aspects, the UE may communicate with the second base station using the SCG on one or more frequency bands in frequency range 2 (e.g., FR2) or other relatively high frequency bands (e.g., millimeter wave bands).

[0059] like Figure 3As shown and referenced by 310, the UE may receive one or more downlink transmissions from the first base station. In some aspects, the UE may receive one or more downlink transmissions from the first base station on one or more frequency bands on FR1 using MCG.

[0060] As indicated by reference numeral 320, the UE may send an RLC status report to the first base station. The RLC status report may include automatic repeat request (ARQ) feedback associated with one or more downlink transmissions received from the first base station. In some aspects, a transmission range of the RLC status report to the first base station may be relatively high based at least in part on using a relatively lower frequency band for uplink transmissions.

[0061] As indicated by reference numeral 330, the UE may receive one or more downlink transmissions from the second base station.In some aspects, the UE may receive one or more downlink transmissions from the first base station on one or more frequency bands on FR2 using MCG.

[0062] As shown in the reference numeral 340, the UE may send an RLC status report to the second base station. The RLC status report may include ARQ feedback associated with one or more downlink transmissions received from the second base station. In some aspects, the transmission range of the RLC status report to the second base station may be relatively low based at least in part on the use of a relatively high frequency band for transmission. In some aspects, the UE may send the RLC status report to the second base station using limited transmit power (e.g., based at least in part on maximum allowed exposure (MPE) requirements, UE configuration, etc.). In some aspects, the second base station may be outside the range of the UE used to send the RLC status report to the second base station. This may result in a failure to receive ARQ feedback, which may result in the base station assuming an ACK or a NACK (NACK) for one or more downlink transmissions. This may consume computing, communication, and / or network resources to unnecessarily retransmit one or more downlink transmissions (e.g., based at least in part on an incorrect NACK assumption), or detect and recover from the assumption of an ACK when the UE does not receive one or more downlink transmissions.

[0063] As mentioned above, providing Figure 3 As an example. Other examples may be related to Figure 3 Different than described.

[0064] In some aspects described herein, a UE may send an RLC status report or information of an RLC status report with an extended transmission range. In some aspects, a UE may be configured with one or more formats for sending an RLC status report (e.g., based at least in part on RRC signaling). In some aspects, a UE may receive a physical layer indication or a MAC layer indication indicating one of the one or more formats or a new format for sending an RLC status report (e.g., via one or more MAC CEs, downlink control information (DCI), etc.). For example, a UE may receive a physical layer indication or a MAC layer indication with an indication for sending an RLC status report in a format that is configured to use a 12-bit sequence number (e.g., instead of using an 18-bit sequence number) to indicate a sequence number of a downlink transmission. The UE may send an RLC status report using the indicated format. In some aspects, using a relatively small number of bits to indicate a sequence number of a downlink transmission within an RLC status report may reduce the payload of the RLC status report and increase the transmission range. In this way, a base station may receive an RLC status report when the UE is outside the transmission range for sending an RLC status report with a large payload. This may save computational, communication, and / or network resources that may be consumed based at least in part on the base station making an incorrect assumption about ARQ feedback.

[0065] In some aspects described herein, a UE may be configured to selectively send information of an RLC status report via an RLC control packet data unit (PDU) or via a MAC CE. In some aspects, the UE may reduce and / or compress the information of the RLC status report for transmission via a MAC CE, which may reduce the payload of the transmission of the information of the RLC status report. This may increase the transmission range of the information used by the UE to send the RLC status report. In this way, when the UE is outside the transmission range of sending the RLC status report using an RLC control PDU, the base station may receive the RLC status report, which may save computing, communication, and / or network resources consumed based at least in part on the base station's incorrect assumption of ARQ feedback.

[0066] Figure 44 is a schematic diagram illustrating an example 400 of range extension for RLC status reporting according to the present disclosure. As shown, a UE (e.g., UE 120) and a base station (e.g., base station 110) may communicate using one or more of a downlink transmission and an uplink transmission. In some aspects, the base station and the UE may be part of a wireless network (e.g., wireless network 100). In some aspects, the UE and the base station may communicate using a cell group on one or more frequency bands on FR2 or other relatively higher frequency bands. In some aspects, the downlink transmission range using the cell group may be greater than the uplink transmission range using the cell group (e.g., based at least in part on MPE requirements, configuration of the UE, etc.).

[0067] like Figure 4 As shown, and by reference numeral 410, the base station may send, and the UE may receive, RRC signaling that configures the UE with one or more formats for sending an RLC status report. For example, the RRC signaling may indicate at least one first format (e.g., an 18-bit sequence number for identifying a downlink transmission, a 12-bit sequence number for identifying a downlink transmission, etc.) to be configured for the UE for sending an RLC status report.

[0068] As indicated by reference numeral 420, the UE may configure the UE with one or more formats for sending the RLC status report. For example, the UE may be configured to send the RLC status report using one of the one or more formats unless the base station sends an indication to use a format different from the one or more formats. In some aspects, the UE may be configured to send the RLC status report using any of the one or more formats, and may be configured to select one of the one or more formats based at least in part on a physical layer indication or a MAC layer indication.

[0069] As indicated by reference numeral 430, the base station may send one or more downlink transmissions to the UE. The one or more downlink transmissions may include one or more control plane downlink transmissions (e.g., RLC downlink transmissions), one or more user plane downlink transmissions, etc. The UE may attempt to receive the one or more downlink transmissions and may determine ARQ feedback (e.g., ACK or NACK) for the one or more downlink transmissions. In some aspects, the UE may generate information of an RLC status report for transmission to the base station to indicate the ARQ feedback.

[0070] As shown in reference numeral 440, the base station may select a format for sending an RLC status report (e.g., for the UE to use to send one or more RLC status reports). In some aspects, the base station may select the format based at least in part on the downlink data rate of the downlink transmission to the UE, the estimated size of the RLC status report, the RLC packet error rate of the downlink transmission to the UE, the uplink transmission conditions, etc. In some aspects, the base station may select a format for sending an RLC status report identified in the RRC signaling from one or more formats. In some aspects, the base station may select a new format that is not identified in the RRC signaling. In other words, the base station may select a format that the UE is configured to use based at least in part on the RRC signaling (e.g., configured to use an 18-bit sequence number to indicate a sequence number for a downlink transmission, configured to use a 12-bit sequence number to indicate a sequence number for a downlink transmission, etc.), or may select a new format that the UE has not yet been configured to use (e.g., the base station sends information to the UE to configure the UE to use the new format).

[0071] In some aspects, a relatively small downlink data rate may indicate that fewer NACKs (with indications of sequence numbers) may be included in the RLC status report. This may indicate a reduced payload of the RLC status report without selecting a relatively small number of bits for the sequence number to identify the downlink transmission. Similarly, the base station may estimate the size of the RLC status report (e.g., based at least in part on a previous RLC status report) and select a format based at least in part on the estimated size of the RLC status report. For example, if the base station estimates that the size of the RLC status report is relatively large, the base station may select a format that may reduce the size of the RLC status report (e.g., the bit count of the sequence number is relatively small).

[0072] In some aspects, the base station may select a format based at least in part on an RLC packet error rate for downlink transmissions to the UE. For example, based at least in part on a determination that the RLC packet error rate is relatively high (e.g., indicating that the payload of the RLC status report may be relatively high), the base station may select a format that reduces the size of the RLC status report (e.g., the number of bits of the sequence number is relatively small). Similarly, the base station may select a format based at least in part on uplink channel conditions. For example, based at least in part on a determination that the uplink channel conditions are relatively good (e.g., measured by the base station), the base station may select a format that does not reduce the size of the RLC status report (e.g., the bit count of the sequence number is relatively large).

[0073] As indicated by reference numeral 450, the base station may send a physical layer indication or a MAC layer indication of a format (e.g., a selected format). In some aspects, the base station may send and the UE may receive the physical layer indication or the MAC layer indication of the format via one or more MAC CEs, DCIs (e.g., in a DCI message), etc. In some aspects, the base station may send a physical layer indication or a MAC layer indication of the format to dynamically configure the UE to use the indicated format. In some aspects, the base station may send a physical layer indication or a MAC layer indication of the format to semi-statically configure the UE to use the indicated format (e.g., use the indicated format for subsequent RLC status reports until a change in the format indicated in a subsequent physical layer indication, a subsequent MAC layer indication, or subsequent RRC signaling).

[0074] As indicated by reference numeral 460, the UE may generate an RLC status report having an indicated format (e.g., based at least in part on receiving a physical layer indication or a MAC layer indication). The UE may select a format for one or more RLC status reports (e.g., based at least in part on the physical layer indication or the MAC layer indication of the format). In some aspects, the UE may select a format for one or more RLC status reports from a first format configured to indicate a sequence number of a downlink transmission using a relatively small bit count (e.g., using a 12-bit sequence number) and a second format configured to indicate a sequence number of a downlink transmission using a relatively large bit count (e.g., using an 18-bit sequence number).

[0075] As indicated by reference numeral 470, the UE may send one or more RLC status reports using a selected format (e.g., selected based at least in part on a physical layer indication or a MAC layer indication) and the base station may receive one or more RLC status reports using the selected format. In some aspects, the UE may send one or more additional RLC status reports in the format based at least in part on the physical layer indication or the MAC layer indication. For example, the UE may be configured to apply the format to a configured number of time slots, a configured number of RLC status reports, and / or a configured amount of time, etc. Additionally or alternatively, the UE may use the format for a configured number of time slots, a configured number of RLC status reports, and / or a configured amount of time, etc. based at least in part on an indication associated with the physical layer indication (e.g., in the same DCI message) or with the MAC layer indication.

[0076] In some aspects, the format may include a MAC layer signaling format. In other words, the UE may use MAC layer signaling to send one or more RLC status reports.

[0077] As indicated by reference numeral 480, the UE may send, and the base station may receive, a request to change from the indicated format. For example, the UE may request to change from the indicated format based at least in part on one or more radio conditions or detection of a failure by the base station to receive a previous RLC report, among other examples.

[0078] As indicated by reference numeral 490, the base station may send, and the UE may receive, an indication to use a different format for one or more subsequent RLC status reports. In some aspects, the UE may receive the indication to use the different format based at least in part on sending a request to change from the indicated format. In some aspects, the base station may determine to use the different format based at least in part on one or more radio conditions, detection of a failure of the base station to receive a previous RLC report, network traffic, and the like.

[0079] In this manner, the RLC status report may be configured with a format that improves the transmission range (e.g., based at least in part on the base station determining that the transmission range should be increased to enable the base station to receive the RLC status report). In this manner, the base station may receive the RLC status report when the UE is out of the transmission range for sending the RLC status report with a relatively large payload, which may save computational, communication, and / or network resources that are consumed based at least in part on the base station's erroneous assumption of ARQ feedback.

[0080] As mentioned above, providing Figure 4 As an example. Other examples may be related to Figure 4 Different than described.

[0081] Figure 5 is a schematic diagram of an example 500 of range extension for RLC status reporting according to the present disclosure. As shown, a UE (e.g., UE 120) and a base station (e.g., base station 110) may communicate using one or more of a downlink transmission and an uplink transmission. In some aspects, the base station and the UE may be part of a wireless network (e.g., wireless network 100). In some aspects, the UE and the base station may communicate using a cell group on one or more frequency bands on FR2 or other relatively higher frequency bands. In some aspects, the downlink transmission range using the cell group may be greater than the uplink transmission range using the cell group (e.g., based at least in part on MPE requirements, configuration of the UE, etc.).

[0082] like Figure 5As shown, by reference numeral 505, the base station may send RRC signaling to configure the UE to send one or more information of the RLC status report via one or more RLC control PDUs or one or more MAC CEs. In some aspects, the RRC signaling may include instructions for reducing the size of the information of the RLC status report and / or compressing the information of the RLC status report for transmission via one or more MAC CEs. In some aspects, the RRC signaling may indicate the format of one or more MAC CEs for sending the information of the RLC status report.

[0083] As indicated by reference numeral 510, the UE may configure the UE based at least in part on RRC signaling. In some aspects, the UE may be configured to select information to send an RLC status report via one or more RLC control PDUs or via one or more MAC CEs based at least in part on one or more parameters. The one or more parameters may include an indication from a base station, a downlink data rate for downlink transmission to the UE, an estimated size of the RLC status report (e.g., estimated by the base station and indicated to the UE), an RLC packet error rate for downlink transmission to the UE, uplink transmission conditions, etc. For example, the UE may be configured to select information to send an RLC status report based at least in part on one or more parameters indicating that the payload of the RLC status report is relatively large, indicating that the uplink channel conditions are relatively poor, etc.

[0084] As indicated by reference numeral 515, the base station may send one or more downlink transmissions to the UE. The one or more downlink transmissions may include one or more control plane downlink transmissions (e.g., RLC downlink transmissions), one or more user plane downlink transmissions, etc. The UE may attempt to receive the one or more downlink transmissions and may determine ARQ feedback for the one or more downlink transmissions. In some aspects, the UE may generate information of an RLC status report for transmission to the base station to indicate ARQ feedback.

[0085] As indicated by reference numeral 520, the base station may determine to send an indication for information for the UE to send one or more RLC status reports via one or more MAC CEs. The base station may determine to send the indication based at least in part on one or more parameters. The one or more parameters may include a request from the UE, a downlink data rate for downlink transmissions to the UE, an estimated size of the RLC status report, an RLC packet error rate for downlink transmissions to the UE, uplink transmission conditions, and the like.

[0086] As indicated by reference numeral 525, the base station may send an indication of information for sending the RLC status report via one or more MAC CEs. In some aspects, the base station may send an indication indicating that the UE will select to send one or more MAC CEs to send the RLC status report, as configured based at least in part on RRC signaling.

[0087] As shown in the reference numeral 530, the UE may determine to send information of one or more RLC status reports via one or more MAC CEs. In some aspects, the UE may determine to send information of one or more RLC status reports via one or more MAC CEs based at least in part on an indication from a base station. In some aspects, the UE may determine to autonomously send information of one or more RLC status reports via one or more MAC CEs, and / or may not receive an indication from a base station. In some aspects, the UE may determine to send information of one or more RLC status reports via one or more MAC CEs based at least in part on one or more parameters. The one or more parameters may include an indication from a base station, a downlink data rate for downlink transmission to the UE, an estimated size of an RLC status report, an RLC packet error rate for downlink transmission to the UE, uplink transmission conditions, and the like.

[0088] As indicated by reference numeral 535, the UE may send an indication to the base station indicating that the UE has determined to send one or more RLC status reports via one or more MACCEs. In some aspects, the indication may include a confirmation of the indication (as indicated by reference numeral 525) from the base station.

[0089] As indicated by reference numeral 540, the base station may determine to receive information of one or more RLC status reports via one or more MAC CEs (e.g., based at least in part on an indication received from the UE, as indicated by reference numeral 535). In some aspects, the base station may determine to check one or more MAC CEs of subsequent uplink transmissions for information of the RLC status report.

[0090] In some aspects, the base station may determine that information of one or more RLC status reports is to be received via one or more MAC CEs based at least in part on an indication from the UE (as shown in reference numeral 535). In some aspects, the base station may determine that information of one or more RLC status reports is to be received via one or more MAC CEs based at least in part on the determination (as shown in reference numeral 520) and / or an indication sent to the UE (as shown in reference numeral 535). In some aspects, the base station may determine that information of one or more RLC status reports is to be received via one or more MAC CEs without or independently of receiving an indication from the UE.

[0091] As indicated by reference numeral 545, the UE may reduce the size of the RLC status report for transmission via one or more MAC CEs. In some aspects, the UE may omit one or more ACKs or NACKs from the information from the RLC status report. In some aspects, the UE may compress the information from the RLC status report to reduce the size of the RLC status report. In some aspects, the UE may use a fixed size for one or more MAC CEs. This may allow the UE to reduce the header size of the MAC CE (e.g., using a single bit and / or omitting bits that may otherwise be used to indicate the size of one or more MAC CEs).

[0092] As indicated by reference numeral 550, the UE may transmit information of the one or more RLC status reports via one or more MAC CEs. In some aspects, the information of the one or more RLC status reports may include a reduced size RLC status report.

[0093] In this manner, information for the RLC status report may be sent in a manner that improves the transmission range (e.g., based at least in part on the base station determining that the transmission range should be increased to enable the base station to receive the RLC status report). In this manner, the base station may receive the RLC status report when the UE is out of the transmission range for sending the RLC status report using the RLC control PDU, which may save computational, communication, and / or network resources that may be consumed based at least in part on the base station's incorrect assumptions about ARQ feedback.

[0094] As mentioned above, providing Figure 5 As an example. Other examples may be related to Figure 5 Different than described.

[0095] Figure 6 6 is a diagram illustrating an example process 600 performed, for example, by a UE according to the present disclosure. Example process 600 is an example of a UE (eg, UE 110, etc.) performing operations associated with range extension of RLC status reporting.

[0096] like Figure 6 As shown, in some aspects, process 600 may include configuring at least one first RLC status reporting format for the UE based at least in part on RRC signaling (block 610). For example, the UE (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may configure at least one first RLC status reporting format for the UE based at least in part on RRC signaling, as described above.

[0097] like Figure 6As further shown, in some aspects, process 600 may include selecting, for the RLC status report, a RLC status reporting format of at least one of the first RLC status reporting format or the second RLC status reporting format based at least in part on the physical layer indication or the MAC layer indication (block 620). For example, the UE (e.g., using the controller / processor 280, etc.) may select, for the RLC status report, a RLC status reporting format of at least one of the first RLC status reporting format or the second RLC status reporting format based at least in part on the physical layer indication or the MAC layer indication, as described above.

[0098] Process 600 may include additional aspects, such as any combination of any aspect described below alone and / or in combination with one or more other processes described elsewhere herein.

[0099] In a first aspect, at least one first RLC status reporting format and a second RLC status format together include an RLC status reporting format configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission, and another RLC status reporting format configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission.

[0100] In a second aspect, alone or in combination with the first aspect, process 600 includes receiving one or more MAC CEs including a physical layer indication or a MAC layer indication, or receiving a DCI including a physical layer indication or a MAC layer indication.

[0101] In a third aspect, alone or in combination with one or more of the first and second aspects, process 600 includes sending an RLC status report in at least one first RLC status reporting format or a second RLC status reporting format based at least in part on a physical layer indication or a MAC layer indication.

[0102] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 600 includes sending one or more additional RLC status reports in an RLC status reporting format in at least one first RLC status reporting format or a second RLC status reporting format based at least in part on a physical layer indication or a MAC layer indication.

[0103] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the RLC status report is associated with a cell group on FR2.

[0104] although Figure 6 An example block diagram of process 600 is shown, but in some aspects, process 600 may include Figure 6Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 600. Additionally or alternatively, two or more blocks of process 600 may be executed in parallel.

[0105] Figure 7 is a diagram illustrating an example process 700, performed, for example, by a base station, according to the present disclosure. Example process 700 is an example of a base station (eg, base station 120, etc.) performing operations associated with range extension for radio link control state reporting.

[0106] like Figure 7 As shown, in some aspects, process 700 may include sending RRC signaling to the UE indicating at least one first RLC status reporting format to be configured for the UE (block 710). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may send RRC signaling to the UE indicating at least one first RLC status reporting format to be configured for the UE, as described above.

[0107] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include sending a physical layer indication or a MAC layer indication of an RLC status reporting format in at least one first RLC or second RLC status reporting format to the UE and for the RLC status report (block 720). For example, the base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may send a physical layer indication or a MAC layer indication of an RLC status reporting format in at least one first RLC status reporting format or second RLC status reporting format to the UE and for the RLC status report, as described above.

[0108] Process 700 may include additional aspects, such as any single aspect described below and / or any combination of aspects in combination with one or more other processes described elsewhere herein.

[0109] In a first aspect, process 700 includes selecting an RLC status reporting format based at least in part on one or more of a downlink data rate of downlink transmissions to the UE, an estimated size of an RLC status report, an RLC packet error rate of downlink transmissions to the UE, uplink transmission conditions, or some combination thereof.

[0110] In a second aspect, alone or in combination with the first aspect, at least one first RLC status report format and a second RLC status format together include an RLC status report format configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission, and another RLC status report format configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission.

[0111] In a third aspect, alone or in combination with one or more of the first and second aspects, process 700 includes sending a physical layer indication or a MAC layer indication via one or more of a MAC CE or a DCI.

[0112] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 700 includes receiving an RLC status report in an RLC status reporting format of at least one first RLC status reporting format or a second RLC status report sent at least in part based on a physical layer indication or a MAC layer indication.

[0113] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the RLC status report is associated with a cell group on FR2.

[0114] although Figure 7 An example block diagram of process 700 is shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 700. Additionally or alternatively, two or more blocks of process 700 may be executed in parallel.

[0115] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a UE according to the present disclosure. Example process 800 is an example of a UE (eg, UE 120, etc.) performing operations associated with range extension for radio link control state reporting.

[0116] like Figure 8 As shown, in some aspects, process 800 may include determining information to send an RLC status report via a MAC CE (block 810). For example, the UE (e.g., using controller / processor 280, etc.) may determine information to send an RLC status report via a MAC CE, as described above.

[0117] like Figure 8As further shown in FIG. 8 , in some aspects, process 800 may include sending information for an RLC status report via a MAC CE (block 820). For example, the UE (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may send information for an RLC status report via a MAC CE, as described above.

[0118] Process 800 may include additional aspects, such as any combination of any aspect described below alone and / or in combination with one or more other processes described elsewhere herein.

[0119] In a first aspect, the information of the RLC status report includes a reduced-size RLC status report, and the sending of the information of the RLC status report via the MAC CE includes sending the reduced-size RLC status report via the MAC CE.

[0120] In a second aspect, alone or in combination with the first aspect, the MAC CE has a fixed size and the MAC CE uses a single bit for a header.

[0121] In a third aspect, alone or in combination with one or more of the first and second aspects, the UE is configured to select at least one of: sending information of the RLC status report via an RLC control packet data unit or sending information of the RLC status report via a MAC CE, and determining whether to send information of the RLC status report via a MAC CE based at least in part on at least one or more of an indication from a base station, a downlink data rate of a downlink transmission to the UE, an estimated size of the RLC status report, an RLC packet error rate of a downlink transmission to the UE, an uplink transmission condition, or some combination thereof.

[0122] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the RLC status report is associated with a cell group on FR2.

[0123] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 800. Additionally or alternatively, two or more blocks of process 800 may be executed in parallel.

[0124] Fig. 9 9 is a diagram illustrating an example process 900 performed, for example, by a base station according to the present disclosure. Example process 900 is an example of a UE (eg, base station 110, etc.) performing operations associated with range extension for radio link control state reporting.

[0125] like Fig. 9 As shown, in some aspects, process 900 may include determining to receive information for an RLC status report via a MAC CE (block 910). For example, a base station (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may determine to receive information for an RLC status report via a MAC CE, as described above.

[0126] like Fig. 9 As further shown, in some aspects, process 900 may include receiving information for an RLC status report via a MAC CE (block 920). For example, a base station (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may receive information for an RLC status report via a MAC CE, as described above.

[0127] Process 900 may include additional aspects, such as any combination of any aspect described below alone and / or in combination with one or more other processes described elsewhere herein.

[0128] In a first aspect, process 900 includes sending an indication to a UE associated with information of an RLC status report to send information of an RLC status report via a MAC CE.

[0129] In a second aspect, either alone or in combination with the first aspect, process 900 includes determining a sending indication based at least in part on one or more of: a request from the UE, a downlink data rate for downlink transmissions to the UE, an estimated size of an RLC status report, an RLC packet error rate for downlink transmissions to the UE, uplink transmission conditions, or some combination thereof.

[0130] In a third aspect, alone or in combination with one or more of the first and second aspects, determining information to receive the RLC status report via the MAC CE comprises determining information to receive the RLC status report via the MAC CE based at least in part on an indication from the UE.

[0131] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the MAC CE has a fixed size, and the MAC CE uses a single bit for a header.

[0132] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the RLC status report is associated with a cell group on FR2.

[0133] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the information of the RLC status report includes a reduced-size RLC status report, and receiving the information of the RLC status report via the MAC CE includes receiving the reduced-size RLC status report via the MAC CE.

[0134] although Fig. 9 An example block diagram of process 900 is shown, but in some aspects, process 900 may include Fig. 9 The blocks depicted in the process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks. Additionally or alternatively, two or more blocks of the process 900 may be executed in parallel.

[0135] Fig.10 1 is a diagram illustrating an example process 1000 performed, for example, by a UE according to the present disclosure. Example process 1000 is an example of a UE (eg, UE 120) performing operations associated with range extension for radio link control state reporting.

[0136] like Fig.10 As shown, in some aspects, process 1000 may include receiving RRC signaling indicating that the UE is configured to send one or more formats for RLC status reports (block 1010). For example, the UE (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238 or controller / processor 240, etc.) may receive RRC signaling indicating that the UE is configured to send one or more formats for RLC status reports, as described above.

[0137] like Fig.10 As further shown, in some aspects, process 1000 may include sending the RLC status report using an indicated format among the one or more formats or an additional format for sending the RLC status report, wherein use of the indicated format is based at least in part on the physical layer indication or the MAC layer indication (block 1020). For example, a UE (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the MOD 232, or the antenna 234, among other examples) may send the RLC status report using an indicated format among the one or more formats or an additional format for sending the RLC status report, wherein use of the indicated format is based at least in part on the physical layer indication or the MAC layer indication, as described above.

[0138] Process 1000 may include additional aspects, such as any combination of the aspects described below alone and / or in combination with one or more other processes described elsewhere herein.

[0139] In a first aspect, sending the RLC status report using the indicated format includes sending the RLC status report using a MAC layer signaling format.

[0140] In a second aspect, alone or in combination with the first aspect, the one or more formats include a first format configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission, and a second format configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission.

[0141] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1000 includes one or more of: receiving one or more MAC control elements including a MAC layer indication, or receiving downlink control information including a physical layer indication.

[0142] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 1000 includes sending one or more additional RLC status reports using an indicated format based at least in part on a physical layer indication or a MAC layer indication.

[0143] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1000 includes receiving an indication for sending a subsequent RLC status report using a different format.

[0144] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 1000 includes sending a request to change from an indicated format for sending a subsequent RLC status report, wherein receipt of an indication for sending a subsequent RLC status report using a different format is based at least in part on sending the request to change from the indicated format for sending a subsequent RLC status report.

[0145] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the RLC status report is associated with a cell group on frequency range 2.

[0146] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 1000 includes configuring the UE with one or more formats based at least in part on received RRC signaling.

[0147] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 1000 includes generating an RLC status report having an indicated format based at least in part on receiving a physical layer indication or a MAC layer indication.

[0148] although Fig.10 An example block diagram of process 1000 is shown, but in some aspects, process 1000 may include Fig.10Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 1000. Additionally or alternatively, two or more blocks of process 1000 may be executed in parallel.

[0149] The following provides an overview of some aspects of the disclosure:

[0150] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving radio resource control (RRC) signaling indicating one or more formats configured for the UE to send a radio link control (RLC) status report; and sending an RLC status report using an indicated format among the one or more formats or an additional format for sending an RLC status report, wherein use of the indicated format is at least partially based on a physical layer indication or a medium access control (MAC) layer indication.

[0151] Aspect 2: The method according to aspect 1, wherein sending the RLC status report using the indicated format includes: sending the RLC status report using a MAC layer signaling format.

[0152] Aspect 3: A method according to any one of Aspects 1 to 2, wherein one or more formats include: a first format configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission, and a second format configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission.

[0153] Aspect 4: The method according to any one of Aspects 1 to 3 further includes one or more of the following: receiving one or more MAC control elements including MAC layer indications, or receiving downlink control information including physical layer indications.

[0154] Aspect 5: The method according to aspect 4 further comprises: sending one or more additional RLC status reports using the indicated format based at least in part on the physical layer indication or the MAC layer indication.

[0155] Aspect 6: The method according to aspect 5 further includes: receiving an indication to send a subsequent RLC status report using a different format.

[0156] Aspect 7: The method according to Aspect 6 also includes: sending a request to change from the indicated format for sending a subsequent RLC status report, wherein receiving an indication for sending a subsequent RLC status report using a different format is at least partially based on the sending of the request to change from the indicated format for sending a subsequent RLC status report.

[0157] Aspect 8: A method according to any one of Aspects 1 to 7, wherein the RLC status report is associated with a cell group on frequency range 2.

[0158] Aspect 9: The method according to any one of aspects 1 to 8 further includes: configuring one or more formats for the UE based at least in part on received RRC signaling.

[0159] Aspect 10: The method according to any one of aspects 1 to 9 further comprises: generating an RLC status report having an indicated format based at least in part on receiving a physical layer indication or a MAC layer indication.

[0160] Aspect 11: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 1-10.

[0161] Aspect 12: A device for wireless communication, comprising: a memory and one or more processors coupled to the memory, wherein the memory and the one or more processors are configured to perform the method of one or more aspects of aspects 1-10.

[0162] Aspect 13: An apparatus for wireless communication, comprising at least one component for performing the method of one or more aspects of aspects 1-10.

[0163] Aspect 14: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 1-10.

[0164] Aspect 15: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 1-10.

[0165] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of these aspects.

[0166] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, and other examples, whether referred to as software, firmware, middleware, microcode, hardware description languages ​​or other. As used herein, a processor is implemented with hardware and / or a combination of hardware and software. As used herein, depending on the context, satisfying a threshold may refer to being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, a value equal to a threshold, not equal to a threshold, etc.

[0167] Obviously, the systems and / or methods described herein can be implemented in different forms of hardware and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code - it should be understood that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.

[0168] As used herein, satisfying a threshold may refer to being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, a value equal to a threshold, not equal to a threshold, etc., depending on the context.

[0169] Although specific combinations of features are recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner not specifically recorded in the claims and / or disclosed in the specification. Although each dependent claim listed below can directly depend on a claim, the disclosure of various aspects includes the combination of each dependent claim with each other claim in the claim set. As used herein, the phrase "at least one" mentioned in the list of items refers to any combination of these items, including single members. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other order of a, b and c).

[0170] Unless explicitly stated, any element, action or instruction used herein should not be interpreted as key or necessary. In addition, as used herein, the article "a" and "an" are intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items related to the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the term "set" and "group" are intended to include one or more items (for example, related items, unrelated items, combinations of related and unrelated items, etc.), and can be used interchangeably with "one or more". If only one item is intended to be used, the phrase "only one" or similar language is used. In addition, as used herein, the term "has", "have", "having" and / or similar terms are intended to be open terms. In addition, unless explicitly stated otherwise, the phrase "based on" is intended to represent "based at least in part". Furthermore, as used herein, the term "or" is intended to be inclusive when used in a serial form and can be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used with "either" or "only one").

Claims

1. A method of wireless communication performed by a user equipment UE, comprising: Receiving radio resource control (RRC) signaling indicating that one or more formats for sending a radio link control (RLC) status report are configured for the UE, wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to indicate a sequence number of a downlink transmission using a second bit count greater than the first bit count; receiving a physical layer indication or a medium access control MAC layer indication indicating a format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and The RLC status report is sent using the indicated format.

2. The method according to claim 1, wherein: Sending the RLC status report using the indicated format comprises: The RLC status report is sent using a MAC layer signaling format.

3. The method according to claim 1, wherein: The first format is configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission as the first bit count, and the second format is configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission as the second bit count.

4. The method according to claim 1, wherein: Receiving the physical layer indication or the medium access control MAC layer indication includes one or more of the following: receiving one or more MAC control elements including the MAC layer indication, or Downlink control information including the physical layer indication is received.

5. The method according to claim 4, further comprising: One or more additional RLC status reports are sent using the indicated format based at least in part on the physical layer indication or the MAC layer indication.

6. The method according to claim 5, further comprising: An indication is received to send a subsequent RLC status report using a different format.

7. The method according to claim 6, further comprising: sending a request to change from the indicated format for sending said subsequent RLC status report, Wherein receiving the indication for sending the subsequent RLC status report using the different format is based at least in part on sending the request to change from the indicated format for sending the subsequent RLC status report.

8. The method according to claim 1, wherein: The RLC status report is associated with a cell group on frequency range 2.

9. The method according to claim 1, further comprising: Based at least in part on receiving the RRC signaling, the one or more formats are configured for the UE.

10. The method according to claim 1, further comprising: The RLC status report having the indicated format is generated based at least in part on receiving the physical layer indication or the MAC layer indication.

11. A user equipment UE for wireless communication, comprising: one or more memories; as well as one or more processors coupled to the one or more memories, the one or more processors configured to: Receiving radio resource control (RRC) signaling indicating that one or more formats for sending a radio link control (RLC) status report are configured for the UE, wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to indicate a sequence number of a downlink transmission using a second bit count greater than the first bit count; receiving a physical layer indication or a medium access control MAC layer indication indicating a format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and The RLC status report is sent using the indicated format.

12. The UE according to claim 11, wherein: The one or more processors, when sending the RLC status report using the indicated format, are configured to: The RLC status report is sent using a MAC layer signaling format.

13. The UE according to claim 11, wherein: The first format is configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission as the first bit count, and the second format is configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission as the second bit count.

14. The UE according to claim 11, wherein: The one or more processors, upon receiving the physical layer indication or the MAC layer indication, are configured to: receiving one or more MAC control elements including the MAC layer indication, or Downlink control information including the physical layer indication is received.

15. The UE according to claim 14, wherein: The one or more processors are further configured to: One or more additional RLC status reports are sent using the indicated format based at least in part on the physical layer indication or the MAC layer indication.

16. The UE according to claim 15, wherein: The one or more processors are further configured to: An indication is received to send a subsequent RLC status report using a different format.

17. The UE according to claim 16, wherein: The one or more processors are further configured to: sending a request to change from the indicated format for sending said subsequent RLC status report, Wherein receiving the indication for sending the subsequent RLC status report using the different format is based at least in part on sending the request to change from the indicated format for sending the subsequent RLC status report.

18. The UE according to claim 11, wherein: The RLC status report is associated with a cell group on frequency range 2.

19. The UE according to claim 11, wherein: The one or more processors are further configured to: Based at least in part on receiving the RRC signaling, the one or more formats are configured for the UE.

20. The UE according to claim 11, wherein: The one or more processors are further configured to: The RLC status report having the indicated format is generated based at least in part on receiving the physical layer indication or the MAC layer indication.

21. A method of wireless communication performed by a network entity, comprising: Sending a radio resource control (RRC) signaling indicating that one or more formats for sending a radio link control (RLC) status report are configured for a user equipment (UE), wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to indicate a sequence number of a downlink transmission using a second bit count greater than the first bit count; sending a physical layer indication or a medium access control MAC layer indication indicating a format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and The RLC status report is received using the indicated format.

22. The method according to claim 21, wherein: The first format is configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission as the first bit count, and the second format is configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission as the second bit count.

23. The method according to claim 21, further comprising: A request is received to change from the indicated format for sending a subsequent RLC status report.

24. The method according to claim 21, further comprising: An indication is sent to send subsequent RLC status reports using a different format.

25. The method according to claim 21, wherein: The RLC status report is associated with a cell group on frequency range 2.

26. A network entity for wireless communication, comprising: one or more memories; as well as one or more processors coupled to the one or more memories, the one or more processors configured to: Sending a radio resource control (RRC) signaling indicating that one or more formats for sending a radio link control (RLC) status report are configured for a user equipment (UE), wherein the one or more formats include: a first format configured to use a first bit count to indicate a sequence number of a downlink transmission, or a second format configured to indicate a sequence number of a downlink transmission using a second bit count greater than the first bit count; sending a physical layer indication or a medium access control MAC layer indication indicating a format used by the UE for the RLC status report, the indicated format being one of the one or more formats identified in the RRC signaling or an additional format not identified in the RRC signaling; and The RLC status report is received using the indicated format.

27. The network entity according to claim 26, wherein: The first format is configured to use a 12-bit sequence number to indicate a sequence number of a downlink transmission as the first bit count, and the second format is configured to use an 18-bit sequence number to indicate a sequence number of a downlink transmission as the second bit count.

28. The network entity according to claim 26, wherein: The one or more processors are further configured to: A request is received to change from the indicated format for sending a subsequent RLC status report.

29. The network entity according to claim 26, wherein: The one or more processors are further configured to: An indication is received to send a subsequent RLC status report using a different format.

30. The network entity according to claim 26, wherein: The RLC status report is associated with a cell group on frequency range 2.

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