Repetition values for uplink communications
By selecting the number of repetitions of uplink communication based on parameters such as RSRP, elevation angle and power level, the problem of delay and overhead of repetitions in non-terrestrial networks is solved, and communication efficiency and reliability are improved.
Patent Information
- Application Number
- CN202380066140.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-21
- Filing Date
- 2023-08-23
- Publication Date
- 2025-04-25
AI Technical Summary
The configuration of the number of repetitions used in uplink communication in non-terrestrial networks has a delay and a large overhead, and it is difficult for traditional technologies to dynamically adjust the number of repetitions to adapt to different environmental conditions.
The user equipment (UE) may select an appropriate number of repetitions from multiple repetition values based on the reference signal reception power (RSRP), elevation angle, power level, or a combination thereof, or even select without dynamic signaling.
By selecting the appropriate number of repetitions locally by UE, the efficiency and reliability of uplink communication are improved, delay and overhead are reduced, and different environmental conditions are adapted.
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Figure CN119895755A_ABST
Abstract
Description
Background Art
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Patent Application No. 17 / 934,065, filed on September 21, 2022, entitled “REPETITION VALUE FOR UPLINK COMMUNICATION” and assigned to the assignee of this application. The disclosure of the prior application is considered a part of this patent application and is incorporated by reference into this patent application. Technical Field
[0003] Aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for repetition values for uplink communications.
[0004] Related technical description
[0005] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts or other similar types of services. These wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available wireless communication system resources with those users.
[0006] Although wireless communication systems have made tremendous technical progress over the years, challenges still exist. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and wireless receivers. Accordingly, there is a continued desire to improve the technical performance of wireless communication systems, including, for example: improving the speed and data carrying capacity of communications, improving the efficiency of using shared communication media, reducing the power used by transmitters and receivers when performing communications, improving the reliability of wireless communications, avoiding redundant transmission and / or reception and related processing, improving the coverage area of wireless communications, increasing the number and types of devices that can access wireless communication systems, increasing the ability of different types of devices to communicate with each other, increasing the number and types of wireless communication media available for use, etc. Therefore, there is a need to further improve wireless communication systems to overcome the above-mentioned technical challenges and other challenges. Summary of the invention
[0007] One aspect provides a method for wireless communication by a user equipment (UE). The method includes receiving configuration information indicating a plurality of repetition values for uplink communication of the UE. The method includes sending the uplink communication using a number of repetitions indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
[0008] Another aspect provides a method for wireless communication by a network entity. The method includes outputting configuration information indicating a plurality of repetition values for uplink communication of a UE. The method also includes obtaining uplink communication using a number of repetitions indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
[0009] Other aspects provide: an apparatus operable to, configured to, or otherwise adapted to perform any one or more of the foregoing methods and / or those described elsewhere herein; a non-transitory computer-readable medium comprising instructions that, when executed by a processor of the apparatus, cause the apparatus to perform the foregoing methods and those described elsewhere herein; a computer program product embodied on a computer-readable storage medium, comprising code for performing the foregoing methods and those described elsewhere herein; and / or an apparatus comprising components for performing the foregoing methods and those described elsewhere herein. By way of example, an apparatus may include a processing system, a device having a processing system, or a processing system cooperating through one or more networks.
[0010] For purposes of illustration, the following description and drawings set forth certain features. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings depict certain features of the various aspects described herein and should not be considered to limit the scope of the disclosure.
[0012] Figure 1 An example wireless communication network is depicted.
[0013] Figure 2 An example disaggregated base station architecture is depicted.
[0014] Figure 3 Aspects of an example base station and example user equipment are depicted.
[0015] Figure 4A , Figure 4B , Figure 4C and Figure 4D Various example aspects of data structures for a wireless communication network are described.
[0016] Figure 5 is a diagram illustrating an example of a regenerative satellite deployment and an example of a transparent satellite deployment in a non-terrestrial network.
[0017] Figure 6 is a diagram illustrating an example of signaling associated with selecting a number of repetitions for uplink transmissions.
[0018] Figure 7 A method for wireless communication is described.
[0019] Figure 8 A method for wireless communication is described.
[0020] Fig. 9 Aspects of an example communications device are depicted.
[0021] Fig.10 Aspects of an example communications device are depicted. DETAILED DESCRIPTION
[0022] Aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable media for selection of repetition values for uplink transmissions, such as non-terrestrial network communications.
[0023] A radio access network (RAN) may facilitate communication between a user equipment (UE) and a network node (such as a base station, a central unit, a distributed unit, a radio unit, etc.). Communication from a node of the RAN to a UE is referred to as downlink communication, and communication from a UE to a node of the RAN is referred to as uplink communication. In general, uplink communication is more limited in coverage than downlink communication because the UE tends to have a lower transmit power than a network node (due to the UE being limited to using battery power for transmission and having lower power radio frequency (RF) hardware, etc.). "Coverage enhancement" refers to a technique for extending the coverage of a transmission (such as an uplink communication or a downlink communication). In some examples, a UE or a network node may perform repetition of communication to achieve coverage enhancement. Repetition involves sending communications multiple times (such as with different redundancy versions in some examples). As an example, a transmitter may send a physical channel (e.g., a physical uplink shared channel (PUSCH) or another type of channel) multiple times in a configuration that implements joint channel estimation of the physical channel, which may be referred to as demodulation reference signal (DMRS) bundling. As another example, the transmitter may transmit a number of repetitions of the communication according to a number of repetitions indicated by a grant associated with the communication.As yet another example, the transmitter may transmit a transport block on a multi-slot physical uplink shared channel.
[0024] A non-terrestrial network (NTN) is an example of a RAN. In an NTN, a UE communicates with a non-terrestrial network node (such as a gNB at a satellite or a satellite used as a relay for a terrestrial gateway). Compared to a terrestrial network (TN), an NTN has a higher round trip delay (RTD) because the distance between the UE and the network nodes in the NTN is greater than the distance between the UE and the network nodes in the TN. In addition, the NTN can benefit from coverage enhancement, making communications in the NTN more reliable. As described above, one example of coverage enhancement is the repetition of communications. However, conventional techniques for indicating the number of repetitions of a communication may be impractical in an NTN, and the appropriate number of repetitions may vary in different situations. For example, the repetition number configuration of a radio resource control (RRC) may involve considerable delay and overhead. As another example, the dynamic signaling of the number of repetitions (e.g., downlink control information, physical layer signaling) weakens the benefits of repetitions for hybrid automatic repeat requests (HARQ) retransmissions and may be impractical due to the high RTD of the NTN. Therefore, network signaling (eg, signaling from a network node) indicating a number of repetitions (eg, a repetition value) may be impractical, may introduce delay, and may increase overhead.
[0025] Some techniques described herein may be used to select a repetition value from a plurality of repetition values at a UE. The UE may select a repetition value based at least in part on, for example, a reference signal received power (RSRP), an elevation angle between the UE and a network node (e.g., including a network node or a satellite associated with the network node), a power level of the UE, or a combination thereof. Because path loss is related to the elevation angle in NTN, selecting a repetition value based at least in part on the elevation angle may improve the accuracy of the selection of the repetition value, and thus improve the efficiency of uplink communications in NTN. Selecting a repetition value based at least in part on power level, elevation angle, and / or RSRP enables the UE to select an appropriate number of repetitions without receiving explicit signaling identifying the number of repetitions, which improves the practicality of the selection of the repetition value (particularly in NTN), reduces delays, and reduces overhead. In addition, the UE may derive a flexible number of repetitions (the number of repetitions may change based on parameter changes at the UE) without dynamic signaling.
[0026] Introduction to wireless communication networks
[0027] The techniques and methods described herein can be used in various wireless communication networks. Although various aspects may be described herein using terms commonly associated with 3G, 4G and / or 5G wireless technologies, various aspects of the present disclosure may also be applicable to other communication systems and standards not explicitly mentioned herein.
[0028] Figure 1 An example of a wireless communication network 100 is depicted in which various aspects described herein may be implemented.
[0029] In general, the wireless communication network 100 includes various network entities (alternatively, network elements or network nodes). A network entity is typically a communication device and / or a communication function performed by a communication device (e.g., user equipment (UE), base station (BS), component of a BS, server, etc.). For example, various functions of a network and various devices associated with and interacting with the network may be considered network entities. In addition, the wireless communication network 100 includes ground aspects, such as ground-based network entities (e.g., BS 110), and non-ground aspects, such as satellites 140 and aircraft 145, which may include airborne network entities (e.g., one or more BSs) that can communicate with other network elements (e.g., ground BSs) and UEs.
[0030] In the depicted example, the wireless communication network 100 includes a BS 110, a UE 120, and one or more core networks (such as an evolved packet core (EPC) 160 and a 5G core (5GC) 190) that interoperate to provide communication services over various communication links (including wired and wireless links).
[0031] Figure 1 Various example UEs 120 are depicted, which may more generally include: a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player, a camera, a game console, a tablet computer, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, an Internet of Things (IoT) device, an Always-On (AON) device, an edge processing device, or another similar device. UE 120 may also be more generally referred to as a mobile device, a wireless device, a wireless communication device, a station, a mobile station, a subscriber station, a mobile subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a remote device, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, or a handset, etc.
[0032] BS 110 may wirelessly communicate with (e.g., send signals to or receive signals from) UE 120 via communication link 170. Communication link 170 between BS 110 and UE 120 may carry uplink (UL) (also referred to as a reverse link) transmissions from UE 120 to BS 110 and / or downlink (DL) (also referred to as a forward link) transmissions from BS 110 to UE 120. In various aspects, communication link 170 may employ multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity.
[0033] BS 110 may generally include: NodeB, enhanced NodeB (eNB), next generation enhanced NodeB (ng-eNB), next generation NodeB (gNB or gNodeB), access point, base transceiver station, radio base station, radio transceiver, transceiver function, transmission and reception point, and / or other. BS 110 may provide communication coverage for a corresponding geographic coverage area 112, which may sometimes be referred to as a cell and may overlap in some cases (e.g., a small cell provided by BS 110a may have a coverage area 112' that overlaps with the coverage area 112 of a macro cell). For example, a BS may provide communication coverage for a macro cell (covering a relatively large geographic area), a pico cell (covering a relatively small geographic area, such as a stadium), a femto cell (covering a relatively small geographic area (e.g., a home)), and / or other types of cells.
[0034] Although BS110 is depicted as a single communication device in various aspects, BS110 can be implemented in various configurations. For example, one or more components of the base station may be decomposed, including a central unit (CU), one or more distributed units (DU), one or more radio units (RU), a near real-time (near RT) RAN intelligent controller (RIC) or a non-real-time (non-RT) RIC, to name a few examples. In another example, various aspects of the base station may be virtualized. More generally, a base station (e.g., BS110) may include components located at a single physical location or components located at various physical locations. In an example in which the base station includes components located at various physical locations, the various components may each perform a function so that the various components together implement functionality similar to that of a base station located at a single physical location. In some aspects, a base station including components located at various physical locations may be referred to as a decomposed radio access network architecture (such as an open RAN (O-RAN) or virtualized RAN (VRAN) architecture). Figure 2 An example decomposed base station architecture is depicted and described.
[0035] Different BSs 110 within the wireless communication network 100 may also be configured to support different radio access technologies (such as 3G, 4G, and / or 5G). For example, a BS 110 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). A BS 110 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN)) may interface with the 5GC 190 via a second backhaul link 184. The BSs 110 may communicate with each other directly or indirectly (e.g., via the EPC 160 or the 5GC 190) over a third backhaul link 134 (e.g., an X2 interface), which may be wired or wireless.
[0036] The wireless communication network 100 may subdivide the electromagnetic spectrum into various categories, frequency bands, channels, or other characteristics. In some aspects, the subdivision is provided based on wavelength and frequency, where frequency may also be referred to as a carrier, subcarrier, channel, tone, or subband. For example, 3GPP currently defines frequency range 1 (FR1) as including 410 MHz-7125 MHz, which is often (interchangeably) referred to as "below 6 GHz". Similarly, 3GPP currently defines frequency range 2 (FR2) as including 24,250 MHz-52,600 MHz, which is sometimes (interchangeably) referred to as "millimeter wave" ("mmW" or "mmWave"). A base station (e.g., a mmWave base station such as BS110b) configured to communicate using mmWave or near mmWave radio bands can utilize beamforming (e.g., as shown by 182) with a UE (e.g., 120) to improve path loss and range.
[0037] The communication link 170 between the BS 110 and, for example, the UE 120 may be through one or more carriers, which may have different bandwidths (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, and / or other bandwidths) and may be aggregated in various aspects. The carriers may or may not be adjacent to each other. In some examples, the allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL compared to UL).
[0038] Communications using higher frequency bands may have higher path loss and shorter range than communications at lower frequencies. Accordingly, some base stations (e.g., Figure 1182 . A base station 110b in the wireless communication system 110a may utilize beamforming with a UE 120 to improve path loss and range, as shown at 182. For example, the BS 110b and the UE 120 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming. In some cases, the BS 110b may transmit beamformed signals to the UE 120 in one or more transmit directions 182'. The UE 120 may receive the beamformed signals from the BS 110b in one or more receive directions 182". The UE 120 may also transmit beamformed signals to the BS 110b in one or more transmit directions 182". The BS 110b may also receive beamformed signals from the UE 120 in one or more receive directions 182'. The BS 110b and the UE 120 may then perform beam training to determine optimal receive and transmit directions for each of the BS 110b and the UE 120. It is worth noting that the transmission direction and the reception direction of BS 110b may be the same or may not be the same. Similarly, the transmission direction and the reception direction of UE 120 may be the same or may not be the same.
[0039] The wireless communication network 100 further includes a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, the 2.4 GHz and / or 5 GHz unlicensed spectrum.
[0040] Certain UEs 120 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), a physical sidelink control channel (PSCCH), and / or a physical sidelink feedback channel (PSFCH).
[0041] The EPC 160 may include various functional components, including: a mobility management entity (MME) 161, other MMEs 162, a serving gateway 163, a multimedia broadcast multicast service (MBMS) gateway 164, a broadcast multicast service center (BM-SC) 165, and / or a packet data network (PDN) gateway 166, such as in the depicted example. The MME 161 may communicate with a home subscriber server (HSS) 167. The MME 161 is a control node that handles signaling between the UE 120 and the EPC 160. In general, the MME 161 provides bearer and connection management.
[0042] Generally, user Internet Protocol (IP) packets are delivered through a Serving Gateway 163, which itself is connected to a PDN Gateway 166. The PDN Gateway 166 provides UE IP address allocation and other functions. The PDN Gateway 166 and the BM-SC 165 are connected to IP Services 168, which may include, for example, the Internet, an Intranet, an IP Multimedia Subsystem (IMS), a Packet Switched (PS) streaming media service, and / or other IP services.
[0043] The BM-SC 165 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 165 may serve as an entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and / or may be used to schedule MBMS delivery. The MBMS Gateway 164 may be used to distribute MBMS services to BSs 110 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting a specific service, and / or may be responsible for session management (start / stop) and for collecting eMBMS related charging information.
[0044] 5GC 190 may include various functional components, including: access and mobility management function (AMF) 191, other AMFs 192, session management functions (SMF) 193, and user plane functions (UPF) 194. AMF 191 may communicate with unified data management (UDM) 195.
[0045] AMF 191 is a control node that processes signaling between UE 120 and 5GC 190. AMF 191 provides, for example, Quality of Service (QoS) flow and session management.
[0046] IP packets are delivered through UPF 194, which is connected to IP services 196 and provides UE IP address allocation and other functions for 5GC 190. IP services 196 may include, for example, the Internet, intranet, IMS, PS streaming services, and / or other IP services.
[0047] In various aspects, a network entity or network node may be implemented as a converged base station, a decomposed base station, a component of a base station, an integrated access and backhaul (IAB) node, a relay node, a sidelink node, or a transmit receive point (TRP), to name a few examples.
[0048] Figure 2An example disaggregated base station 200 architecture is depicted. The disaggregated base station 200 architecture may include one or more central units (CUs) 210 that may communicate directly with a core network 220 via a backhaul link, or indirectly with the core network 220 through one or more disaggregated base station units, such as a near real-time (near-RT) RAN intelligent controller (RIC) 225 via an E2 link, or a non-real-time (non-RT) RIC 215 associated with a service management and orchestration (SMO) framework 205, or both. The CU 210 may communicate with one or more distributed units (DUs) 230 via respective midhaul links, such as an F1 interface. The DU 230 may communicate with one or more radio units (RUs) 240 via respective fronthaul links. The RU 240 may communicate with respective UEs 120 via one or more radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 240.
[0049] Each of the units (e.g., CU 210, DU 230, RU 240, and near-RT RIC 225, non-RT RIC 215, and SMO framework 205) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to the communication interface of the unit may be configured to communicate with one or more of the other units via a transmission medium. For example, the units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally or alternatively, the unit may include a wireless interface that may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive or send signals or both to one or more of the other units on a wireless transmission medium.
[0050] In some aspects, CU 210 may host one or more high-level control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 210. CU 210 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP)), control plane functionality (e.g., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 210 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 210 may be implemented to communicate with DU 230 for network control and signaling.
[0051] DU 230 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 240. In some aspects, DU 230 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) at least in part according to a functional split such as those defined by the 3rd Generation Partnership Project (3GPP). In some aspects, DU 230 may also host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 230 or with control functions hosted by CU 210.
[0052] The lower layer functionality may be implemented by one or more RUs 240. In some deployments, the RU 240 controlled by the DU 230 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.), or both, based at least in part on a functional split (such as a lower layer functional split). In such an architecture, the RU 240 may be implemented to handle over-the-air (OTA) communications with one or more UEs 120. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 240 may be controlled by the corresponding DU 230. In some scenarios, this configuration may enable the implementation of the DU 230 and the CU 210 in a cloud-based RAN architecture (such as a vRAN architecture).
[0053] The SMO framework 205 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 205 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 205 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element lifecycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 210, DU 230, RU 240, and near-RT RIC 225. In some specific implementations, the SMO framework 205 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 211) via the O1 interface. In addition, in some specific implementations, the SMO framework 205 may communicate directly with one or more RUs 240 via the O1 interface. The SMO framework 205 may also include a non-RT RIC 215 configured to support the functionality of the SMO framework 205 .
[0054] The non-RT RIC 215 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 225. The non-RT RIC 215 may be coupled to or in communication with the near-RT RIC 225 (such as via an A1 interface). The near-RT RIC 225 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 210, one or more DUs 230, or both, and the O-eNB with the near-RT RIC 225.
[0055] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 225, the non-RT RIC 215 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 225 and may be received from a non-network data source or from a network function at the SMO framework 205 or the non-RT RIC 215. In some examples, the non-RT RIC 215 or the near-RT RIC 225 may be configured to adjust RAN behavior or performance. For example, the non-RT RIC 215 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 205 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).
[0056] Figure 3 Aspects of an example BS 110 and UE 120 are depicted.
[0057] In general, BS 110 includes various processors (e.g., 320, 330, 338, and 340), antennas 334a-334t (collectively 334), transceivers 332a-332t (collectively 332) including modulators and demodulators, and other aspects that enable wireless transmission of data (e.g., data source 312) and wireless reception of data (e.g., data sink 339). For example, BS 110 can transmit and receive data between BS 110 and UE 120. BS 110 includes a controller / processor 340 that can be configured to implement various functions described herein related to wireless communication.
[0058] Generally speaking, the UE 120 includes various processors (e.g., 358, 364, 366, and 380), antennas 352a-352r (collectively 352), transceivers 354a-354r (collectively 354) including modulators and demodulators, and other aspects that enable wireless transmission of data (e.g., retrieved from a data source 362) and wireless reception of data (e.g., provided to a data sink 360). The UE 120 includes a controller / processor 380 that may be configured to implement various functions described herein related to wireless communications.
[0059] Regarding example downlink transmissions, BS 110 includes a transmit processor 320 that can receive data from a data source 312 and control information from a controller / processor 340. The control information can be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical HARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), and / or others. In some examples, the data can be for a physical downlink shared channel (PDSCH).
[0060] The transmit processor 320 may process (e.g., encode and symbol map) data and control information to obtain data symbols and control symbols, respectively. The transmit processor 320 may also generate reference symbols (such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH demodulation reference signal (DMRS), and a channel state information reference signal (CSI-RS)).
[0061] The transmit (TX) multiple-input multiple-output (MIMO) processor 330 may perform spatial processing (e.g., pre-decoding) on data symbols, control symbols, and / or reference symbols, where applicable, and may provide an output symbol stream to a modulator (MOD) in a transceiver 332a-332t. Each modulator in the transceiver 332a-332t may process a corresponding output symbol stream to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from the modulators in the transceivers 332a-332t may be transmitted via antennas 334a-334t, respectively.
[0062] To receive downlink transmissions, UE 120 includes antennas 352a-352r that can receive downlink signals from BS 110 and can provide received signals to demodulators (DEMODs) in transceivers 354a-354r, respectively. Each demodulator in transceivers 354a-354r can condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator can further process the input samples to obtain received symbols.
[0063] A MIMO detector 356 may obtain received symbols from all demodulators in transceivers 354a-354r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 358 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for UE 120 to a data sink 360, and provide decoded control information to a controller / processor 380.
[0064] With respect to example uplink transmissions, the UE 120 also includes a transmit processor 364 that may receive and process data from a data source 362 (e.g., for a PUSCH) and control information from a controller / processor 380 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 364 may also generate reference symbols for reference signals (e.g., for a sounding reference signal (SRS)). The symbols from the transmit processor 364 may be pre-decoded by a TX MIMO processor 366, if applicable, further processed by a modulator in the transceivers 354a-354r (e.g., for SC-FDM), and transmitted to the BS 110.
[0065] At BS 110, uplink signals from UE 120 may be received by antennas 334a-334t, processed by demodulators in transceivers 332a-332t, detected by MIMO detector 336 where applicable, and further processed by receive processor 338 to obtain decoded data and control information transmitted by UE 120. Receive processor 338 may provide decoded data to data sink 339 and decoded control information to controller / processor 340. Memories 342 and 382 may store data and program codes for BS 110 and UE 120, respectively. Scheduler 344 may schedule UEs for data transmission on the downlink and / or uplink.
[0066] In various aspects, the BS 110 may be described as sending and receiving various types of data associated with the methods described herein. In these contexts, "sending" may refer to various mechanisms for outputting data, such as outputting data from a data source 312, a scheduler 344, a memory 342, a transmit processor 320, a controller / processor 340, a TX MIMO processor 330, a transceiver 332a-332t, an antenna 334a-334t, and / or other aspects described herein. Similarly, "receiving" may refer to various mechanisms for obtaining data, such as obtaining data from an antenna 334a-334t, a transceiver 332a-332t, a RX MIMO detector 336, a controller / processor 340, a receive processor 338, a scheduler 344, a memory 342, and / or other aspects described herein.
[0067] In various aspects, the UE 120 may also be described as sending and receiving various types of data associated with the methods described herein. In these contexts, "sending" may refer to various mechanisms for outputting data, such as outputting data from a data source 362, a memory 382, a transmit processor 364, a controller / processor 380, a TX MIMO processor 366, a transceiver 354a-354t, an antenna 352a-352t, and / or other aspects described herein. Similarly, "receiving" may refer to various mechanisms for obtaining data, such as obtaining data from an antenna 352a-352t, a transceiver 354a-354t, a RX MIMO detector 356, a controller / processor 380, a receive processor 358, a memory 382, and / or other aspects described herein.
[0068] In some aspects, the processor may be configured to perform various operations (such as those associated with the methods described herein) and send (output) data to or receive (obtain) data from another interface configured to send or receive data, respectively.
[0069] Figure 4A , Figure 4B , Figure 4C and Figure 4D Describes a method for use in a wireless communication network such as Figure 1 Various aspects of the data structure of the wireless communication network 100).
[0070] Specifically, Figure 4A is a diagram 400 illustrating an example of a first subframe within a 5G (e.g., 5G NR) frame structure, Figure 4B is a diagram 430 illustrating an example of a DL channel within a 5G subframe, Figure 4C is a diagram 450 illustrating an example of a second subframe within a 5G frame structure, and Figure 4D FIG480 is a diagram illustrating an example of UL channels within a 5G subframe.
[0071] Wireless communication systems may utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) on both the uplink and downlink. Such systems may also support half-duplex operation using time division duplex (TDD). OFDM and single carrier frequency division multiplexing (SC-FDM) will (for example, Figure 4B and Figure 4D The system bandwidth (as depicted in FIG. 1 ) is divided into multiple orthogonal subcarriers. Each subcarrier can be modulated with data. Modulation symbols can be transmitted in the frequency domain using OFDM and / or in the time domain using SC-FDM.
[0072] The wireless communication frame structure may be frequency division duplex (FDD), where for a particular set of subcarriers, subframes within the set of subcarriers are dedicated to either DL or UL. The wireless communication frame structure may also be time division duplex (TDD), where for a particular set of subcarriers, subframes within the set of subcarriers are dedicated to both DL and UL.
[0073] exist Figure 4A and Figure 4C In the wireless communication frame structure, TDD is used, where D is DL, U is UL, and F is used flexibly between DL / UL. The UE can be configured with a slot format (dynamically configured by DL control information (DCI) or semi-statically / statically configured by RRC signaling) through a received slot format indicator (SFI). In the depicted example, a 10ms frame is divided into 10 1ms subframes of equal size. Each subframe may include one or more slots. In some examples, each slot may include 7 or 14 symbols, depending on the slot format. A subframe may also include a microslot, which typically has fewer symbols than a whole slot. Other wireless communication technologies may have different frame structures and / or different channels.
[0074] In certain aspects, the number of slots within a subframe is based on the slot configuration and parameter set. For example, for slot configuration 0, different parameter sets (μ) 0 to 5 allow for 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different parameter sets 0 to 2 allow for 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter set μ, there are 14 symbols per slot and 2 per subframe. μ time slots. The subcarrier spacing and symbol length / duration are functions of the parameter set. The subcarrier spacing can be equal to 2 μ × 15kHz, where μ is parameter set 0 to 5. Accordingly, parameter set μ=0 has a subcarrier spacing of 15kHz, and parameter set μ=5 has a subcarrier spacing of 480kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figure 4A , Figure 4B , Figure 4C and Figure 4D An example is provided for slot configuration 0 with 14 symbols per slot and parameter set μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.
[0075] like Figure 4A , Figure 4B , Figure 4C and Figure 4DAs depicted in FIG, a resource grid may be used to represent a frame structure. Each slot includes a resource block (RB) (also referred to as a physical RB (PRB)) extending, for example, over 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.
[0076] like Figure 4A As illustrated, some of the REs carry data for UEs (eg, Figure 1 and Figure 3 The RS may include a demodulation RS (DMRS) and / or a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and / or a phase tracking RS (PT-RS).
[0077] Figure 4B Examples of various DL channels within a subframe of a frame are illustrated.The Physical Downlink Control Channel (PDCCH) carries DCI within one or more Control Channel Elements (CCEs), each CCE comprising, for example, nine RE Groups (REGs), each REG comprising, for example, four consecutive REs in an OFDM symbol.
[0078] The primary synchronization signal (PSS) may be in symbol 2 of a particular subframe of a frame. The PSS is transmitted by a UE (e.g., Figure 1 and Figure 3 104) is used to determine subframe / symbol timing and physical layer identification.
[0079] A Secondary Synchronization Signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing.
[0080] Based on the physical layer identifier and the physical layer cell identifier group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DMRS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the system frame number (SFN) and the number of RBs in the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information (such as system information blocks (SIBs)) that is not sent via the PBCH, and / or paging messages.
[0081] like Figure 4CAs illustrated, some of the REs carry DMRS for channel estimation at the base station (indicated as R for a particular configuration, but other DMRS configurations are possible). The UE may send DMRS for PUCCH and DMRS for PUSCH. The PUSCH DMRS may be sent, for example, in the first one or two symbols of the PUSCH. The PUCCH DMRS may be sent in different configurations depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used. UE 120 may send a sounding reference signal (SRS). The SRS may be sent, for example, in the last symbol of a subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the teeth of the comb. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.
[0082] Figure 4D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.
[0083] Aspects involving repetition for uplink transmissions
[0084] Figure 5 is a diagram illustrating an example 500 of a regenerative satellite deployment and an example 510 of a transparent satellite deployment in a non-terrestrial network.
[0085] Example 500 illustrates a regenerative satellite deployment. In example 500, UE 120 is served by satellite 520 via service link 530. For example, satellite 520 may include base station 110 (e.g., gNB). In some aspects, satellite 520 may be referred to as a non-terrestrial base station, a regenerative repeater, or an onboard processing repeater. In some aspects, satellite 520 may demodulate uplink radio frequency signals and may modulate baseband signals derived from the uplink radio signals to produce downlink radio frequency transmissions. Satellite 520 may transmit downlink radio frequency signals on service link 530. Satellite 520 may provide a cell covering UE 120.
[0086] Example 510 shows a transparent satellite deployment, which may also be referred to as a bent-pipe satellite deployment. In example 510, UE 120 is served by satellite 540 via service link 530. Satellite 540 may be a transparent satellite. Satellite 540 may relay signals received from gateway 550 via feeder link 560. For example, a satellite may receive an uplink radio frequency transmission, and may transmit a downlink radio frequency transmission without demodulating the uplink radio frequency transmission. In some aspects, the satellite may convert the frequency of the uplink radio frequency transmission received on service link 530 to the frequency of the uplink radio frequency transmission on feeder link 560, and may amplify and / or filter the uplink radio frequency transmission. In some aspects, the UE 120 shown in examples 500 and 510 may be associated with a global navigation satellite system (GNSS) capability or a global positioning system (GPS) capability, but not all UEs have such capabilities. Satellite 540 may provide a cell covering UE 120.
[0087] The service link 530 may include a link between the satellite 540 and the UE 120, and may include one or more of an uplink or a downlink. The feeder link 560 may include a link between the satellite 540 and the gateway 550, and may include one or more of an uplink (e.g., from the UE 120 to the gateway 550) or a downlink (e.g., from the gateway 550 to the UE 120). The uplink of the service link 530 may be indicated by the reference numeral 530-U ( Figure 5 ), and the downlink of the service link 530 may be indicated by reference numeral 530-D ( Figure 5 Similarly, the uplink of the feeder link 560 may be indicated by reference numeral 560-U ( Figure 5 ), and the downlink of the feeder link 560 may be indicated by reference numeral 560-D ( Figure 5 ) indication.
[0088] Due to the movement of satellites 520 and 540 and the potential movement of UE 120, feeder link 560 and service link 530 may each experience Doppler effects. These Doppler effects may be significantly greater than the Doppler effects in the ground network. The Doppler effect on feeder link 560 can be compensated to a certain extent, but may still be associated with a certain amount of uncompensated frequency error. In addition, gateway 550 may be associated with residual frequency error, and / or satellite 520 / 540 may be associated with onboard frequency error. These frequency error sources may cause the downlink frequency received at UE 120 to deviate from the target downlink frequency.
[0089] Figure 5An example 570 of an elevation angle 580 is illustrated. As shown, the elevation angle 580 may represent an angle between a ground surface (e.g., a horizontal axis, a surface reference plane, the surface of the earth, etc.) and a satellite 520 or 540 associated with the UE 120. A higher elevation angle 580 (e.g., a larger angle) may represent a satellite 520 or 540 that is closer to a vertical axis that is perpendicular to the ground surface. A lower elevation angle 580 (e.g., a smaller angle) may represent a satellite 520 or 540 that is perceived by the UE 120 as being closer to the ground surface. The elevation angle 580 may be related to the path loss between the UE 120 and the satellite 520 or 540. For example, a higher elevation angle 580 may generally have a lower path loss than a lower elevation angle 580 because transmissions and receptions at the higher elevation angle 580 may travel a shorter distance and may experience less atmospheric attenuation or distortion than transmissions at the lower elevation angle 580. Some techniques described herein may provide for selecting a number of repetitions (sometimes referred to as a “repetition value”) based at least in part on elevation angle 580, which provides for efficient selection of a number of repetitions to account for path losses at different elevation angles 580. Although the techniques described herein are described with respect to elevation angle 580, the techniques may also be applied to the angle between the vertical axis and the communication path to satellite 520 or 540 (i.e., “90 degrees minus elevation angle 580”).
[0090] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.
[0091] Figure 6 600 is a diagram illustrating an example of signaling associated with selecting a number of repetitions for uplink transmission. As shown, example 600 includes a UE (e.g., UE 120) and a network node (e.g., BS 110, CU 210, DU 230, RU 240, satellite 520, satellite 540, gateway 550). In some aspects, the network node may be associated with an NTN. For example, the network node may be a network node of an NTN referred to as a non-terrestrial network node. In some aspects, the UE may be another type of wireless communication device different from the UE 120.
[0092] As indicated by reference numeral 610, the UE may receive configuration information, and the network node may output (e.g., send or provide for sending) the configuration information. In some aspects, the configuration information may be provided via system information signaling, such as a system information block (SIB). In some aspects, the configuration information may include radio resource control (RRC) information, such as an RRC configuration or an RRC reconfiguration. In some aspects, the configuration information may include medium access control (MAC) information, such as a MAC control element (MAC-CE). In some aspects, the configuration information may include dynamic signaling, such as downlink control information.
[0093] The configuration information may indicate multiple repetition values. For example, the configuration information may include a field that explicitly indicates one or more repetition values. For another example, the configuration information may indicate that multiple predefined repetition values (e.g., predefined in a wireless communication specification) can be used for the selection of a repetition value (e.g., the configuration information may point to the multiple predefined repetition values). The repetition value identifies the number of repetitions of the uplink communication. In some aspects, the configuration information may indicate a range of repetition values (e.g., [8, 32], where 8 is the minimum number of repetitions and 32 is the maximum number of repetitions). In some aspects, the configuration information may indicate the step size of the range of repetition values (e.g., in combination with the range [8, 32], a step size of 8 may mean that the UE may select 8, 16, 24, or 32 as the repetition value). In some aspects, the configuration information may explicitly identify multiple repetition values (e.g., as an example, [8 12 16 20 24 28 32]). In some aspects, the configuration information may indicate an index in a table, where the table specifies multiple repetition values. In some aspects, a parameter of the configuration information (e.g., the parameter of the configuration information may be referred to as RepetitionList) may indicate a plurality of repetition values. In some aspects, the configuration information or the plurality of repetition values may be based at least in part on the fact that the uplink communication is being directed to a non-terrestrial network node. For example, the configuration information or the plurality of repetition values may be dedicated to transmissions to a network node of an NTN. In some aspects, the configuration information or the information indicating the criteria as described below may be part of a PUSCH configuration (e.g., PUSCH-config).
[0094] In some aspects, the configuration information may include information indicating a standard for selecting a repetition value from a plurality of repetition values. In some aspects, the signaling separated from the configuration information may include information indicating a standard for selecting a repetition value. The standard may indicate a mapping between one or more parameters and corresponding repetition values. For example, the one or more parameters may include one or more of a power level, a downlink measurement value (e.g., reference signal received power (RSRP) etc.) or an elevation angle (e.g., elevation angle 580) of the UE. In some aspects, the parameter may be a range of elevation values (e.g., 30 degrees to 40 degrees). In some aspects, the parameter may be a range of downlink measurement values (e.g., -30 dBm to -40 dBm). In some aspects, the parameter may be a range of power levels (e.g., power level 2 and power level 3).
[0095] The parameter power level defines parameters related to the transmit power of the UE, such as the minimum peak effective isotropic radiated power or the maximum total radiated power. Examples of power levels are defined in 3GPP Technical Specification 38.101-2. Downlink measurement values may indicate the results of, for example, RSRP measurements or another type of measurement. Downlink measurement values may involve measurements of reference signals, downlink channels, etc. sent by a network node. In some aspects, the UE may send information (not shown) indicating the power level, elevation angle, and / or downlink measurement values to the network node. For example, the UE may report downlink measurement values according to a configuration (such as a reporting configuration related to a reference signal or a reference signal resource). In some aspects, the network node may determine the elevation angle. For example, the UE may report the location information of the UE, and the network node may use the location information to determine the elevation angle information.
[0096] As described above, the criteria may be based at least in part on one or more parameters including at least one of an elevation angle (e.g., a smaller elevation angle indicating a satellite closer to the horizon may result in a larger number of repetitions being selected), a downlink measurement value (e.g., a weaker downlink measurement value may result in a larger number of repetitions being selected), a service type (e.g., VoIP communications may result in a number of repetitions being selected that is no more than a time length associated with a VoIP packet, such as 20 ms), or a power level (e.g., a power level associated with a higher transmit power may result in a smaller repetition value being selected). For example, the criteria may indicate a mapping between one or more parameters and corresponding repetition values. In some aspects, the criteria may be specified by an information element (IE) (e.g., pusch-RepetitionCriterion). The IE may indicate a set of parameters and corresponding repetition values. For example, for two or more repetition values, the IE may specify a first set of parameters and a first corresponding repetition value, a second set of parameters and a second corresponding repetition value, and so on. In one example, for parameters including power class and elevation angle, the IE may include "pusch-RepetitionCriterion::ENUMERATED{Elevation_PwClass1,Elevation_PwClass2,Elevation_PwClass3,Elevation_PwClass4}", where each combination of elevation angle and power class is mapped to a repetition value. In another example, for parameters including power class and downlink RSRP, the IE may include "pusch-RepetitionCriterion::ENUMERATED{DLRSRP_PwClass1,DLRSRP_PwClass2,DLRSRP_PwClass3,DLRSRP_PwClass4}", where each combination of downlink RSRP and power class is mapped to a repetition value.
[0097] In some aspects, the criterion may indicate a single parameter and a corresponding repetition value. For example, the criterion may indicate a mapping between a repetition value and only one of a downlink measurement value, a power level, or an elevation angle. In some aspects, the criterion may indicate a criterion selected from a plurality of criteria. For example, the criterion may indicate whether a first criterion (e.g., where the repetition value is mapped to a power level and an elevation angle) or a second criterion (e.g., where the repetition value is mapped to a power level and a downlink measurement value) is the selected criterion for selecting the repetition value.
[0098] In some aspects, the standard may indicate a mapping between a parameter set and an index set. The configuration information may indicate a plurality of repetitions mapped to an index set. The UE may select a repetition value by identifying an index mapped to a parameter set (e.g., based on an observed value of the parameter set, such as a measured downlink measurement, an observed elevation angle, or a power level of the UE) and by identifying a repetition value mapped to the index. In some aspects, the standard (e.g., a mapping between a parameter set and an index set) may be specified in a table (e.g., a table of a wireless communication specification). Table 1 below is an example of such a table for power level and elevation angle:
[0099]
[0100] Table 1
[0101] In some aspects, the configuration information may omit the criterion. In some aspects, if the configuration information omits the criterion, the UE may select the number of repetitions using legacy techniques, such as based on the number of repetitions indicated by a dynamic grant resource allocation table, a configured grant resource allocation table, or a parameter configured by a higher layer.
[0102] In some aspects, the set of parameters for selecting the repetition value may include a service type for uplink communications. For example, the service type may include a short message service (SMS) service type, a voice over IP (VoIP) service type, an IoT service type, an ultra-reliable service type, etc. Thus, the standard may indicate one or more parameters of power level, elevation angle, downlink measurement value, or service type, and a mapping of the one or more parameters to repetition values.
[0103] In some aspects, as described above, the configuration information (e.g., the criteria and / or the number of repetition values) may be signaled via the SIB. Thus, the configuration information may be used to select a repetition value for transmission of a random access channel (RACH) message (such as RACH message 3). The network node may then send signaling (e.g., dedicated signaling) to overwrite the configuration information with an updated criteria or an updated number of repetition values. In some aspects, the network node may send signaling to deactivate the configuration information (e.g., as described above, causing the UE to select a repetition value using a legacy method).
[0104] As shown by reference numeral 620, the UE may select a repetition value for the transmission of uplink communication. Thus, the UE may identify the number of repetitions for the transmission of uplink communication. As described below, the UE may select the repetition value based at least in part on one or more parameters (e.g., elevation angle, power level, downlink measurement value, service type, etc.). For example, the UE may select the repetition value according to configuration information. In this example, the UE may identify one or more parameters (e.g., elevation angle, downlink measurement value, power level, service type, or a combination thereof), and may identify an index or repetition value mapped to the one or more parameters. In the case where the repetition value is based on the elevation angle, the UE may identify the elevation angle as the elevation angle of a network node (e.g., a non-terrestrial network node associated with the uplink communication, such as a non-terrestrial network node to which the uplink communication is directed). In the case where the repetition value is based on the downlink measurement value, the UE may identify the downlink measurement value associated with the network node (such as by measuring a downlink reference signal sent by the network node). The UE may select the repetition value according to the mapping. In some aspects, the network node may identify the repetition value, such as based on an elevation angle (e.g., UE location information), a power level, and / or a downlink measurement value reported by the UE. For example, the network node may receive the reported value (e.g., RSRP measured at the UE, UE location information, etc.) prior to a time slot associated with uplink communication. Thus, the network and the UE may have the same understanding of the elevation angle or downlink measurement value used to derive the repetition value.
[0105] As indicated by reference numeral 630, the UE may send uplink communications according to the repetition value. For example, if the repetition value indicates X repetitions, the UE may send uplink communications that are repeated X times. The uplink communications may include, for example, physical RACH (PRACH) transmissions (e.g., PRACH message 1, PRACH message 3, PRACH message A, etc.), physical uplink control channel (PUCCH) transmissions (e.g., transmission of uplink control information via PUCCH), PUSCH transmissions, etc. The network node may receive uplink communications according to the repetition value. For example, the network node may monitor the number of repetitions of the uplink communications defined by the repetition value.
[0106] In some aspects, the UE may use the number of repetitions to send uplink communications regardless of whether a parameter (e.g., an elevation angle or a downlink measurement value) changes during the transmission of the uplink communication. For example, after selecting a repetition value using an original elevation angle value (e.g., an elevation angle value implicitly or explicitly reported to a network node) or an original downlink measurement value (e.g., a downlink measurement value implicitly or explicitly reported to a network node), the UE may identify an updated elevation angle value or an updated downlink measurement value. The UE may use the selected repetition value to send uplink communications without using an updated value or an updated downlink measurement value to select an updated repetition value. In some aspects, the UE may identify an updated elevation angle value or an updated downlink measurement value after reporting the original elevation angle value or the original downlink measurement value. In some aspects, the UE may identify an updated elevation angle value or an updated downlink measurement value during the transmission of the number of repetitions. Thus, the UE may avoid inconsistencies in repeat counts between the UE and the network node.
[0107] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.
[0108] Example Operation of User Equipment
[0109] Figure 7 The method for use by a UE such as Figure 1 and Figure 3 Method 700 for performing wireless communications with a UE 120).
[0110] Method 700 begins at 710, where configuration information indicating a plurality of repetition values for uplink communications of a UE is received.
[0111] Method 700 then proceeds to step 720 where a repetition value is selected, optionally using the power level and a second parameter.
[0112] Then, method 700 proceeds to step 730, wherein uplink communication is sent using the number of repetitions indicated by the repetition value in the plurality of repetition values. In some aspects, the repetition value is based at least in part on the power class of the UE. In some aspects, as described elsewhere herein, the repetition value is not based on the power class of the UE.
[0113] In one aspect, the repetition value is based at least in part on an elevation angle of the non-terrestrial network node associated with the uplink communication.
[0114] In one aspect, at least one of the elevation angle or the power level is mapped to a repeating value.
[0115] In one aspect, transmitting the uplink communication using the repetition number further comprises transmitting the uplink communication using the repetition number regardless of whether the elevation angle changes during the transmission of the uplink communication.
[0116] In one aspect, the number of repetitions is determined based on the original elevation angle, and the method 700 further includes identifying the changing elevation angle during transmission of the uplink communication.
[0117] In one aspect, the repetition value is based at least in part on downlink measurements associated with a non-terrestrial network node associated with uplink communications.
[0118] In one aspect, at least one of the downlink measurement value or the power level is mapped to a repeated value by a table.
[0119] In one aspect, transmitting the uplink communication using the repetition number further comprises transmitting the uplink communication using the repetition number regardless of whether the downlink measurement value changes during the transmission of the uplink communication.
[0120] In one aspect, the number of repetitions is determined based on original downlink measurements, and the method 700 further includes identifying changing downlink measurements during transmission of uplink communications.
[0121] In one aspect, method 700 includes receiving information indicating criteria for selecting a repeating value from a plurality of repeating values.
[0122] In one aspect, the criteria is based at least in part on at least one of a power level, a downlink measurement associated with the non-terrestrial network node associated with uplink communications, or an elevation angle of the non-terrestrial network node.
[0123] In one aspect, receiving configuration information further comprises receiving configuration information or information indicating criteria for selecting a repetition value via system information signaling.
[0124] In one aspect, the uplink communication includes at least one of a physical random access channel transmission, a physical uplink control channel transmission, or a physical uplink shared channel transmission.
[0125] In one aspect, the repetition value is based at least in part on a service type of the uplink communication.
[0126] In one aspect, at least one of the configuration information or the repetition value is based at least in part on the uplink communication being directed to a non-terrestrial network node.
[0127] In one aspect, method 700 includes selecting a repetition value using the power level and the second parameter.
[0128] In one aspect, the second parameter comprises at least one of an elevation angle, a service type, or a downlink measurement value.
[0129] Method 700 or any aspect related thereto may be performed by an apparatus such as Fig. 9 The method 700 is performed by a communication device 900 that includes various components that are operable, configured, or adapted to perform the method 700. The communication device 900 is described in more detail below.
[0130] It should be noted that Figure 7 This is merely one example of a method, and other methods including fewer, additional, or alternative steps are consistent with the present disclosure.
[0131] Example Operations of Network Entities
[0132] Figure 8 A method for transmitting data to a network node such as Figure 1 and Figure 3 BS110 or such Figure 2 A method 800 for performing wireless communications using a decomposed base station (DBS) as discussed above.
[0133] Method 800 begins at 810, where configuration information indicating a plurality of repetition values for uplink communications of a UE is output.For example, a network node may send the configuration information, or may provide the configuration information for another network node to send.
[0134] Then, the method 800 proceeds to step 820, where uplink communication is obtained using a repetition number indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE. For example, the network node may monitor uplink communication based on the repetition number, or may cause another network node to monitor uplink communication based on the repetition number.
[0135] In one aspect, the repetition value is based at least in part on an elevation angle of the UE.
[0136] In one aspect, at least one of the elevation angle or the power level is mapped to a repeating value by a table.
[0137] In one aspect, the repetition value is based at least in part on downlink measurements.
[0138] In one aspect, at least one of the downlink measurement value or the power level is mapped to a repeated value by a table.
[0139] In one aspect, method 800 includes outputting information indicative of criteria for selecting a repeat value from a plurality of repeat values.
[0140] In one aspect, the criterion is a function of at least one of a power level, a downlink measurement, or an elevation angle.
[0141] In one aspect, outputting the configuration information further comprises outputting the configuration information or information indicating criteria for selecting a repetition value via system information signaling.
[0142] In one aspect, the uplink communication includes at least one of a physical random access channel transmission, a physical uplink control channel transmission, or a physical uplink shared channel transmission.
[0143] In one aspect, the repetition value is based at least in part on a service type associated with the uplink communication.
[0144] In one aspect, at least one of the configuration information or the repetition value is based at least in part on the uplink communication being directed to a non-terrestrial network node.
[0145] In one aspect, the network node is a non-terrestrial network node.
[0146] Method 800 or any aspect related thereto may be performed by an apparatus such as Fig.10 The method 800 is performed by a communication device 1000 that includes various components that are operable, configured, or adapted to perform the method 800. The communication device 1000 is described in more detail below.
[0147] In one aspect, method 800 includes identifying duplicate values.
[0148] It should be noted that Figure 8 This is merely one example of a method, and other methods including fewer, additional, or alternative steps are consistent with the present disclosure.
[0149] Example Communication Device
[0150] Fig. 9 Depicted are aspects of an example communications device 900. In some aspects, the communications device 900 is user equipment, such as described above with respect to Figure 1 and Figure 3 UE 120 is described.
[0151] The communication device 900 includes a processing system 902 coupled to a transceiver 908 (e.g., a transmitter and / or a receiver). The transceiver 908 is configured to transmit and receive signals for the communication device 900, such as various signals as described herein, via an antenna 910. The processing system 902 may be configured to perform processing functions for the communication device 900, including processing signals received and / or to be transmitted by the communication device 900.
[0152] The processing system 902 includes one or more processors 920. In various aspects, the one or more processors 920 may represent one or more of the receive processor 358, the transmit processor 364, the TX MIMO processor 366, and / or the controller / processor 380, as described with respect to FIG. Figure 3 The one or more processors 920 are coupled to a computer readable medium / memory 930 via bus 906. In some aspects, the computer readable medium / memory 930 is configured to store instructions (e.g., computer executable code) that, when executed by the one or more processors 920, cause the one or more processors 920 to perform operations related to Figure 7 The method 700 described herein or any aspect related thereto. It should be noted that reference to a processor performing a function of the communication device 900 may include one or more processors performing that function of the communication device 900.
[0153] In the depicted example, the computer-readable medium / memory 930 stores code (e.g., executable instructions) 931 for receiving configuration information indicating a plurality of repetition values for uplink communications of a UE, code 932 for sending uplink communications using a number of repetitions indicated by a repetition value in the plurality of repetition values, code 933 for receiving information indicating a criterion for selecting a repetition value from the plurality of repetition values, and code 934 for selecting a repetition value. The processing of codes 931-934 may cause the communication device 900 to perform operations related to Figure 7 The described method 700 or any aspect related thereto.
[0154] The one or more processors 920 include circuits configured to implement (e.g., execute) code stored in the computer-readable medium / memory 930, including circuits 921 for receiving configuration information indicating a plurality of repetition values for uplink communications of the UE, circuits 922 for sending uplink communications using a number of repetitions indicated by a repetition value in the plurality of repetition values, circuits 923 for receiving information indicating a criterion for selecting a repetition value from the plurality of repetition values, and circuits 924 for selecting a repetition value. Processing using circuits 921-924 may cause the communication device 900 to perform operations related to Figure 7 The described method 700 or any aspect related thereto.
[0155] The various components of the communication device 900 may provide for performing Figure 7 The components of the method 700 described herein or any aspect thereof. For example, the components for sending, transmitting, or outputting for sending may include Figure 3 The illustrated transceiver 354 and / or antenna 352 of the UE 120, and / or Fig. 9The transceiver 908 and antenna 910 of the communication device 900 in FIG. 1 may include Figure 3 The illustrated transceiver 354 and / or antenna 352 of the UE 120, Fig. 9 The transceiver 908 and antenna 910 of the communication device 900 in FIG.
[0156] Fig.10 Various aspects of an example communication device are depicted. In some aspects, the communication device 1000 is a network entity such as Figure 1 and Figure 3 BS110 or such Figure 2 The decomposed base station in question.
[0157] The communication device 1000 includes a processing system 1002 coupled to a transceiver 1008 (e.g., a transmitter and / or a receiver) and / or a network interface 1012. The transceiver 1008 is configured to transmit and receive signals for the communication device 1000 via an antenna 1010, such as various signals as described herein. The network interface 1012 is configured to transmit and receive signals for the communication device 1000 via a communication link (such as, for example, as described herein with respect to Figure 2 The processing system 1002 may be configured to obtain and transmit signals for the communication device 1000 using the backhaul link, midhaul link, and / or fronthaul link described herein. The processing system 1002 may be configured to perform processing functions of the communication device 1000, including processing signals received and / or to be transmitted by the communication device 1000.
[0158] The processing system 1002 includes one or more processors 1020. In various aspects, the one or more processors 1020 may represent one or more of the receive processor 338, the transmit processor 320, the TX MIMO processor 330, and / or the controller / processor 340, as described with respect to FIG. Figure 3 The one or more processors 1020 are coupled to the computer readable medium / memory 1030 via the bus 1006. In some aspects, the computer readable medium / memory 1030 is configured to store instructions (e.g., computer executable code) that, when executed by the one or more processors 1020, cause the one or more processors 1020 to perform operations related to the computer readable medium / memory 1030. Figure 8 The method 800 described herein or any aspect related thereto. It should be noted that reference to a processor of the communication device 1000 performing a function may include one or more processors of the communication device 1000 performing the function.
[0159] In the depicted example, computer readable medium / memory 1030 stores code 1031 (e.g., executable instructions) for outputting configuration information indicating a plurality of repetition values, code 1032 for obtaining uplink communication using a number of repetitions indicated by a repetition value in the plurality of repetition values, code 1033 for outputting information indicating criteria for selecting a repetition value, and code 1034 for identifying a repetition value. The processing of codes 1031-1034 may cause communication device 1000 to perform operations related to Figure 8 The described method 800 or any aspect related thereto.
[0160] The one or more processors 1020 include circuits configured to implement (e.g., execute) code stored in the computer-readable medium / memory 1030, including circuits 1021 for outputting configuration information indicating a plurality of repetition values, circuits 1022 for obtaining uplink communication using a number of repetitions indicated by a repetition value in the plurality of repetition values, circuits 1023 for outputting information indicating criteria for selecting a repetition value, and circuits 1024 for identifying a repetition value. Processing using circuits 1021-1024 may cause the communication device 1000 to perform as described with respect to Figure 8 The described method 800 or any aspect related thereto.
[0161] The various components of the communication device 1000 may be provided for performing the following operations: Figure 8 The components of the method 800 described herein or any aspect thereof. The components for sending, transmitting, or outputting for sending may include Figure 3 The illustrated transceiver 332 and / or antenna 334 of the BS 110, and / or Fig.10 The transceiver 1008 and antenna 1010 of the communication device 1000 in FIG. 1004 may include Figure 3 The illustrated transceiver 332 and / or antenna 334 of the BS 110, and / or Fig.10 The transceiver 1008 and antenna 1010 of the communication device 1000 in FIG.
[0162] Sample Clauses
[0163] Specific implementation examples are described in the following numbered clauses:
[0164] Clause 1: A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving configuration information indicating a plurality of repetition values for uplink communication of the UE; and sending the uplink communication using a number of repetitions indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
[0165] Clause 2: The method of clause 1, wherein the repetition value is based at least in part on an elevation angle of a non-terrestrial network node associated with the uplink communication.
[0166] Clause 3: The method of clause 2, wherein at least one of the elevation angle or the power level is mapped to the repetitive value.
[0167] Clause 4: The method of clause 2, wherein transmitting the uplink communication using the number of repetitions further comprises transmitting the uplink communication using the number of repetitions regardless of whether the elevation angle changes during transmission of the uplink communication.
[0168] Clause 5: The method of clause 4, wherein the number of repetitions is determined based on an original elevation angle, and wherein the method further comprises identifying a changing elevation angle during the transmission of the uplink communication.
[0169] Clause 6: A method as described in any of clauses 1 to 5, further comprising reporting at least one of an elevation angle or a downlink measurement value of the UE to a network node.
[0170] Clause 7: A method as described in any of clauses 1 to 6, wherein the repetition value is based at least in part on a downlink measurement value associated with a non-terrestrial network node associated with the uplink communication.
[0171] Clause 8: The method of clause 7, wherein at least one of the downlink measurement value or the power level is mapped to the repetition value.
[0172] Clause 9: The method of clause 7, wherein transmitting the uplink communication using the number of repetitions further comprises transmitting the uplink communication using the number of repetitions regardless of whether the downlink measurement value changes during the transmission of the uplink communication.
[0173] Clause 10: The method of clause 9, wherein the number of repetitions is determined based on original downlink measurements, and wherein the method further comprises identifying changing downlink measurements during the transmission of the uplink communication.
[0174] Clause 11: The method of any of clauses 1 to 10, further comprising receiving information indicative of criteria for selecting the repetition value from the plurality of repetition values.
[0175] Clause 12: The method of clause 11, wherein the criterion is based at least in part on at least one of the power level, a downlink measurement associated with a non-terrestrial network node associated with the uplink communication, or an elevation angle of the non-terrestrial network node.
[0176] Clause 13: The method of clause 12, further comprising selecting the repetition value based on the criterion.
[0177] Clause 14: A method as described in any of clauses 1 to 13, wherein receiving the configuration information further comprises receiving the configuration information or information indicating criteria for selecting the repetition value via system information signaling.
[0178] Clause 15: A method as described in any of clauses 1 to 14, wherein the uplink communication comprises at least one of: a physical random access channel transmission; a physical uplink control channel transmission; or a physical uplink shared channel transmission.
[0179] Clause 16: A method as described in any of clauses 1 to 15, wherein the repetition value is based at least in part on a service type of the uplink communication.
[0180] Clause 17: The method of any of clauses 1 to 16, wherein at least one of the configuration information or the repetition value is based at least in part on the uplink communication being directed to a non-terrestrial network node.
[0181] Clause 18: The method of any of clauses 1 to 17, further comprising selecting the repetition value using the power level and a second parameter.
[0182] Clause 19: The method of clause 18, wherein the second parameter comprises at least one of an elevation angle, a service type, or a downlink measurement value.
[0183] Clause 20: A method of wireless communication performed by a network node, the method comprising: outputting configuration information indicating a plurality of repetition values for uplink communication of a user equipment (UE); and obtaining the uplink communication using a number of repetitions indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
[0184] Clause 21: The method of clause 20, wherein the repetition value is based at least in part on an elevation angle of the UE.
[0185] Clause 22: The method of clause 21, wherein at least one of the elevation angle or the power level is mapped to the repetition value.
[0186] Clause 23: A method as described in any of clauses 20 to 22, wherein the repetition value is based at least in part on downlink measurement values.
[0187] Clause 24: The method of any of clauses 20 to 23, further comprising outputting information indicative of criteria used to select the repetition value from the plurality of repetition values.
[0188] Clause 25: A method as described in any of clauses 20 to 24, wherein outputting the configuration information further comprises outputting the configuration information or information indicating criteria for selecting the repetition value via system information signaling.
[0189] Clause 26: A method as described in any of clauses 20 to 25, wherein the uplink communication comprises at least one of: a physical random access channel transmission; a physical uplink control channel transmission; or a physical uplink shared channel transmission.
[0190] Clause 27: The method of any of clauses 20 to 26, wherein the repetition value is based at least in part on a service type associated with the uplink communication.
[0191] Clause 28: The method of any of clauses 20 to 27, wherein at least one of the configuration information or the repetition value is based at least in part on the uplink communication being directed to a non-terrestrial network node.
[0192] Clause 29: An apparatus comprising: a memory including executable instructions; and a processor configured to execute the executable instructions and cause the apparatus to perform the method according to any one of clauses 1 to 28.
[0193] Clause 30: An apparatus comprising means for performing the method of any of clauses 1 to 28.
[0194] Clause 31: A non-transitory computer readable medium comprising executable instructions which, when executed by a processor of an apparatus, cause the apparatus to perform the method of any one of clauses 1 to 28.
[0195] Clause 32: A computer program product embodied on a computer readable storage medium, the computer program product comprising code for performing the method according to any one of clauses 1 to 28.
[0196] Additional considerations
[0197] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein are not limited to the scope, applicability or aspects set forth in the claims. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, without departing from the scope of the present disclosure, the functions and arrangements of the elements discussed may be changed. Various examples may omit, replace or add various procedures or components as appropriate. For example, the described methods may be performed in an order different from the order described, and various actions may be added, omitted or combined. In addition, the features described for some examples may be combined in some other examples. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods practiced using other structures, functionality or structures and functionality that are supplementary or alternative to the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present invention.
[0198] The various illustrative logical blocks, modules, and circuits described in conjunction with the present disclosure may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, a system on a chip (SoC), or any other such configuration).
[0199] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items (including single members). For example, "at least one of a, b, or c" is intended to cover 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 ordering of a, b, and c).
[0200] As used herein, the term "determine" encompasses a wide variety of actions. For example, "determine" may include calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, a database, or another data structure), ascertaining, etc. In addition, "determine" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), etc. In addition, "determine" may include resolving, selecting, choosing, establishing, etc.
[0201] The method disclosed herein includes one or more actions for implementing the method. The method actions may be interchangeable with each other without departing from the scope of the claims. In other words, unless a specific order of actions is specified, the order and / or use of specific actions may be modified without departing from the scope of the claims. In addition, the various operations of the method described above may be performed by any appropriate component capable of performing the corresponding function. The component may include various hardware and / or software components and / or modules, including but not limited to circuits, ASICs or processors.
[0202] The following claims are not intended to be limited to the various aspects shown herein, but should be given the full scope consistent with the language of the claims. Within the claims, unless otherwise specified, reference to an element in the singular form is not intended to mean "one and only one", but "one or more". Unless otherwise specified, the term "some" refers to one or more. Any claim element is not interpreted according to the provisions of 35 U.S.C. § 112 (f) unless the element is explicitly stated using the phrase "parts for...". All structural and functional equivalents of the elements of the various aspects described throughout the present disclosure that are known or will be known later to a person of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly stated in the claims.
Claims
1. A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving configuration information indicating a plurality of repetition values for uplink communications of the UE; as well as The uplink communication is sent using a number of repetitions indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
2. The method of claim 1, wherein the repetition value is based at least in part on an elevation angle of a non-terrestrial network node associated with the uplink communication. 3 . The method of claim 2 , wherein at least one of the elevation angle or the power level is mapped to the repetitive value.
4. The method of claim 2, wherein sending the uplink communication using the number of repetitions further comprises: The uplink communication is transmitted using the number of repetitions regardless of whether the elevation angle changes during transmission of the uplink communication.
5. The method of claim 4, wherein the number of repetitions is determined based on an original elevation angle, and wherein the method further comprises identifying a changing elevation angle during transmission of the uplink communication.
6. The method of claim 1, further comprising reporting at least one of an elevation angle or a downlink measurement value of the UE to a network node.
7. The method of claim 1, wherein the repetition value is based at least in part on a downlink measurement value associated with a non-terrestrial network node associated with the uplink communication.
8. The method of claim 7, wherein at least one of the downlink measurement value or the power level is mapped to the repetition value.
9. The method of claim 7, wherein sending the uplink communication using the number of repetitions further comprises: The uplink communication is transmitted using the number of repetitions regardless of whether the downlink measurement value changes during the transmission of the uplink communication.
10. The method of claim 9, wherein the number of repetitions is determined based on original downlink measurements, and wherein the method further comprises identifying changing downlink measurements during transmission of the uplink communication.
11. The method of claim 1, further comprising receiving information indicating criteria for selecting the repetition value from the plurality of repetition values.
12. The method of claim 11, wherein the criterion is based at least in part on at least one of the power level, a downlink measurement associated with a non-terrestrial network node associated with the uplink communication, or an elevation angle of the non-terrestrial network node.
13. The method of claim 12, further comprising selecting the repetition value based on the criterion.
14. The method of claim 1, wherein receiving the configuration information further comprises receiving the configuration information or information indicating criteria for selecting the repetition value via system information signaling.
15. The method of claim 1, wherein the uplink communication comprises at least one of: Physical random access channel transmission; Physical Uplink Control Channel transmission; or Physical uplink shared channel transmission.
16. The method of claim 1, wherein the repetition value is based at least in part on a service type of the uplink communication.
17. The method of claim 1, wherein at least one of the configuration information or the repetition value is based at least in part on the uplink communication being directed to a non-terrestrial network node.
18. The method of claim 1, further comprising selecting the repetition value using the power level and a second parameter.
19. The method of claim 18, wherein the second parameter comprises at least one of an elevation angle, a service type, or a downlink measurement value.
20. A method of wireless communication performed by a network node, the method comprising: outputting configuration information indicating a plurality of repetition values for uplink communication of a user equipment (UE); as well as The uplink communication is obtained using a number of repetitions indicated by a repetition value of the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
21. The method of claim 20, wherein the repetition value is based at least in part on an elevation angle of the UE.
22. The method of claim 21, wherein at least one of the elevation angle or the power level is mapped to the repetitive value.
23. The method of claim 20, wherein the repetition value is based at least in part on downlink measurements.
24. The method of claim 20, further comprising outputting information indicating criteria for selecting the repetition value from the plurality of repetition values.
25. The method of claim 20, wherein outputting the configuration information further comprises outputting the configuration information or information indicating criteria for selecting the repetition value via system information signaling.
26. The method of claim 20, wherein the uplink communication comprises at least one of: Physical random access channel transmission; Physical Uplink Control Channel transmission; or Physical uplink shared channel transmission.
27. The method of claim 20, wherein the repetition value is based at least in part on a service type associated with the uplink communication.
28. The method of claim 20, wherein at least one of the configuration information or the repetition value is based at least in part on the uplink communication being directed to a non-terrestrial network node.
29. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory and configured to: receiving configuration information indicating a plurality of repetition values for uplink communications of the UE; as well as The uplink communication is sent using a number of repetitions indicated by a repetition value in the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.
30. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory and configured to: outputting configuration information indicating a plurality of repetition values for uplink communication of a user equipment (UE); as well as The uplink communication is obtained using a number of repetitions indicated by a repetition value of the plurality of repetition values, wherein the repetition value is based at least in part on a power class of the UE.