Initial access with frequency translation network controlled repeater

Abstract

Certain aspects of the present disclosure provide techniques for initial access of a frequency translation network-controlled relay (FT-NCR). A method for wireless communications by a user equipment (UE) includes receiving a synchronization signal (SS) burst from a relay on a first frequency band at a first synchronization raster. The SS burst includes a synchronization signal block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET). The method includes determining that the SS burst is associated with a serving cell based on the first synchronization raster, where the serving cell uses a second synchronization raster associated with a second frequency band.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to U.S. Patent Application No. 18 / 437,055, filed February 8, 2024, which has been assigned to the assignee of this application and is expressly incorporated herein by reference in its entirety, as fully set forth below and for all applicable purposes. Technical Field

[0003] Various aspects of this disclosure relate to wireless communication, and more specifically to techniques for the initial access procedure of a repeater (FT-NCR) utilizing frequency-switching network control in a wireless communication network. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, broadcasting, or other similar services. These wireless communication systems may employ multiple access technologies that enable communication with several users by sharing available wireless communication system resources.

[0005] Despite significant technological advancements in wireless communication systems over the years, challenges remain. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and receivers. Therefore, there is a continuous expectation for improving the technical performance of wireless communication systems, including, for example: improving communication speed and data carrying capacity; improving the efficiency of shared communication media; reducing the power used by transmitters and receivers during communication; improving the reliability of wireless communication; avoiding redundant transmission and / or reception and related processing; improving the coverage area of ​​wireless communication; increasing the number and types of devices that can access the wireless communication system; increasing the ability of different types of devices to communicate with each other; and increasing the number and types of available wireless communication media. Therefore, there is a need for further improvements to wireless communication systems to overcome the aforementioned technical challenges and other obstacles. Summary of the Invention

[0006] One aspect provides a method for wireless communication by a user equipment (UE). The method includes: receiving a synchronization signal (SS) burst from a repeater in a first frequency band with a first synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET); and determining, based on the first synchronization grid, that the SS burst is associated with a serving cell, wherein the serving cell uses a second synchronization grid associated with a second frequency band.

[0007] On the other hand, a method for wireless communication by a network entity is provided. The method includes: configuring a repeater associated with the network entity to: convert transmissions from the network entity to a first frequency band and a first synchronization grid, and forward the converted transmissions to a user equipment (UE); and outputting a synchronization signal (SS) burst using a second synchronization grid on a second frequency band, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET).

[0008] On the other hand, a method for wireless communication by a repeater is provided. The method includes: receiving a synchronization signal (SS) burst from a network entity in a first frequency band with a first synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET); and forwarding the SS burst to a user equipment (UE) in a second frequency band with a second synchronization grid.

[0009] Other aspects provide: an apparatus operable to, configured to, or otherwise adapted to perform one or more of the methods described herein and / or those elsewhere in the document; a non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of the apparatus (e.g., directly, indirectly, after preprocessing, or without preprocessing), cause the apparatus to perform the methods described herein; a computer program product embodied on a computer-readable storage medium comprising: code for performing the methods described herein and those elsewhere in the document; and / or an apparatus comprising components for performing the methods described herein and those elsewhere in the document. By way of example, an apparatus may include a processing system, a device having a processing system, or a processing system cooperating via one or more networks.

[0010] For illustrative purposes, the following description and figures illustrate certain features. Attached Figure Description

[0011] The accompanying drawings depict certain features of the various aspects described herein and should not be considered as limiting the scope of this disclosure.

[0012] Figure 1 An example wireless communication network is depicted.

[0013] Figure 2 An example decomposed BS architecture is described.

[0014] Figure 3Various aspects of the example base station and example UE are described.

[0015] Figure 4A , Figure 4B , Figure 4C and Figure 4D Various example aspects of data structures used in wireless communication networks are described.

[0016] Figure 5 An example NCF for BS to serve UE is described.

[0017] Figure 6A An example simulation of FT-NCR is depicted.

[0018] Figure 6B Example digital FT-NCR is depicted.

[0019] Figure 7 This is a call flow diagram illustrating an example operation between the UE, network entity, and FT-NCR.

[0020] Figure 8A An example FT-NCR SSB burst location bitmap is shown, indicating the burst location set of FT-NCR SSB burst locations from the serving cell synchronization signal block (SSB).

[0021] Figure 8B An example FT-NCR SSB burst location bitmap is shown, indicating FT-NCR SSB burst location locations in addition to the serving cell SSB burst location set.

[0022] Figure 9 A method for wireless communication at the UE is described.

[0023] Figure 10 A method for wireless communication at network entities is described.

[0024] Figure 11 A method for wireless communication at the FT-NCR is described.

[0025] Figure 12 Various aspects of the example communication device are described.

[0026] Figure 13 Various aspects of the example communication device are described.

[0027] Figure 14 Various aspects of the example communication device are described. Detailed Implementation

[0028] This disclosure provides apparatus, methods, processing systems, and computer-readable media for initial access using a frequency-switching network-controlled repeater (FT-NCR).

[0029] The FT-NCR has a control link and a backhaul link with a network entity (e.g., a base station (BS)) and one or more access links with a user equipment (UE). The network entity receives control information from the network entity through the control link to control the amplification, frequency conversion, and forwarding operations of the FT-NCR.

[0030] According to certain aspects, the FT-NCR receives a synchronization signal (SS) burst from a network entity on a first frequency band associated with a first synchronization grid (e.g., via a backhaul link that can use a Uu interface), converts the SS burst to a second frequency band (e.g., associated with an access link) and a second synchronization grid associated with the second frequency band, and forwards the converted SS burst to the UE on the second synchronization grid via the access link on the second frequency band. Based on the SS burst received on the second frequency band and the second synchronization grid, the UE can identify the SS burst as associated with the same cell (e.g., the serving cell of the network entity).

[0031] Depending on the context, network entities transmit additional SS bursts for FT-NCR operations. In some cases, these additional SS bursts are transmitted over non-traditional synchronization grids that can be detected by FT-NCR.

[0032] In some aspects, the network entity provides the UE with initial system information indicating alternative uplink and / or alternative downlink frequency bands, wherein the alternative frequency bands are associated with the access link used for FT-NCR operation. In some aspects, additional SS bursts are associated with the alternative frequency bands. In some aspects, the UE uses the alternative uplink frequency bands to transmit random access channel requests and / or transmit uplink data to the network entity via the access link. In some aspects, the UE uses the alternative downlink frequency bands to identify downlink signals on the access link as associated with a cell (e.g., the serving cell from the network entity).

[0033] In some respects, the initial system information also provides information for the UE to perform random access in response to an SS burst received via the access link.

[0034] An introduction to wireless communication networks

[0035] The techniques and methods described herein can be used in a variety of wireless communication networks. While aspects may be described herein using terms commonly associated with 3G, 4G, and / or 5G wireless technologies, aspects of this disclosure are equally applicable to other communication systems and standards not explicitly mentioned herein.

[0036] Figure 1 An example of a wireless communication network 100 in which the aspects described herein can be implemented is depicted.

[0037] Generally, wireless communication network 100 includes various network entities (optionally, network elements or network nodes). Network entities are typically communication devices and / or communication functions performed by communication devices (e.g., user equipment (UE), base station (BS), components of the BS, servers, etc.). For example, various functions of the network and various devices associated with and interacting with the network can be considered network entities. Furthermore, wireless communication network 100 includes terrestrial aspects, such as terrestrial network entities (e.g., BS 102), and non-terrestrial aspects, such as satellite 140 and aircraft 145, which may include onboard network entities (e.g., one or more BSs) capable of communicating with other network elements (e.g., terrestrial BSs) and user equipment.

[0038] In the depicted example, wireless communication network 100 includes BS 102, UE 104 and one or more core networks (such as Evolved Packet Core (EPC) 160 and 5G Core (5GC) network 190) that interoperate to provide communication services over various communication links, including wired and wireless links.

[0039] Figure 1 Various example UE 104s are described, which may more generally include: cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players, cameras, game consoles, tablet computers, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, Internet of Things (IoT) devices, always-on (AON) devices, edge processing devices, or other similar devices. UE 104 may also be more generally referred to as mobile devices, wireless devices, wireless communication devices, stations, mobile stations, subscriber stations, mobile subscriber stations, mobile units, subscriber units, wireless units, remote units, remote devices, access terminals, mobile terminals, wireless terminals, remote terminals, mobile phones, and others.

[0040] BS 102 communicates wirelessly with UE 104 via communication link 120 (e.g., sending or receiving signals to or from UE 104). Communication link 120 between BS 102 and UE 104 may include uplink (UL) transmission (also referred to as reverse link) from UE 104 to BS 102 and / or downlink (DL) transmission (also referred to as forward link) transmission from BS 102 to UE 104. In various aspects, communication link 120 may utilize multiple-input multiple-output (MIMO) antenna technologies, including spatial multiplexing, beamforming, and / or transmit diversity.

[0041] BS 102 may typically include: Node B, Enhanced Node B (eNB), Next Generation Enhanced Node B (ng-eNB), Next Generation Node B (gNB or gNodeB), access point, transceiver base station, radio base station, radio transceiver, transceiver functionality, transmit / receive point, and / or others. Each BS in BS 102 may provide communication coverage for a corresponding geographic coverage area 110, which may sometimes be referred to as a cell, and in some cases may overlap (e.g., a small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of a macro cell). For example, BS may provide communication coverage for macro cells (covering a relatively large geographic area), pico cells (covering a relatively small geographic area, such as a stadium), femtocells (covering a relatively small geographic area (e.g., a home)), and / or other types of cells.

[0042] Although BS 102 is described as a single communication device in various aspects, it can be implemented in a variety of configurations. For example, to give a few examples, one or more components of the base station can 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. In another example, various aspects of the base station can be virtualized. More generally, a base station (e.g., BS 102) can include components located at a single physical location or components located at various physical locations. In examples where the base station includes components located at various physical locations, the various components can each perform functions, such that the various components collectively achieve functionality similar to a base station located at a single physical location. In some aspects, a base station including components located at various physical locations can 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.

[0043] Different BSs 102 within the wireless communication network 100 can also be configured to support different radio access technologies (such as 3G, 4G, and / or 5G). For example, a BS 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with EPC 160 via a first backhaul link 132 (e.g., S1 interface). A BS 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN)) can interface with 5GC 190 via a second backhaul link 184. BSs 102 can communicate directly or indirectly (e.g., via EPC 160 or 5GC 190) on a third backhaul link 134 (e.g., X2 interface), which can be wired or wireless.

[0044] Wireless communication network 100 can subdivide the electromagnetic spectrum into various categories, bands, channels, or other characteristics. In some aspects, subdivision is provided based on wavelength and frequency, where frequency may also be referred to as carrier, subcarrier, channel, tone, or subband. For example, 3GPP currently defines frequency range 1 (FR1) as including 410MHz to 7125MHz, which is often (interchangeably) referred to as “sub-6GHz”. Similarly, 3GPP currently defines frequency range 2 (FR2) as including 24,250MHz to 71,000MHz, which is sometimes (interchangeably) referred to as “millimeter wave” (“mmW” or “mmWave”). In some cases, FR2 can be further defined according to subranges (such as a first subrange FR2-1 including 24,250MHz to 52,600MHz and a second subrange FR2-2 including 52,600MHz to 71,000MHz). Base stations configured to communicate using mmWave / near mmWave radio bands (e.g., mmWave base stations such as BS 180) can utilize beamforming (e.g., 182) with UEs (e.g., 104) to improve path loss and range.

[0045] The communication link 120 between BS 102 and, for example, UE 104 can be via one or more carriers, which may have different bandwidths (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz and / or other MHz) and may be aggregated in various ways. The carriers may be adjacent to each other or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL).

[0046] Compared to lower-frequency communication, communication using higher frequency bands may have higher path loss and shorter range. Therefore, some base stations (e.g., Figure 1 The beamforming 182 of the BS 180 (180) with the UE 104 can be used to improve path loss and range. For example, the BS 180 and UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming. In some cases, the BS 180 may transmit beamformed signals to the UE 104 in one or more transmit directions 182''. The UE 104 may receive beamformed signals from the BS 180 in one or more receive directions 182''. The UE 104 may also transmit beamformed signals to the BS 180 in one or more transmit directions 182''. The BS 180 may also receive beamformed signals from the UE 104 in one or more receive directions 182''. The BS 180 and UE 104 may then perform beamforming training to determine the optimal receive and transmit directions for each of the BS 180 and UE 104. It is worth noting that the transmit and receive directions of the BS 180 may be the same or different. Similarly, the sending and receiving directions of UE 104 can be the same or different.

[0047] The wireless communication network 100 further includes a Wi-Fi AP 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, unlicensed spectrum in 2.4 GHz and / or 5 GHz.

[0048] Some UEs 104 may use device-to-device (D2D) communication link 158 to communicate with each other. The D2D communication link 158 may use one or more sidelink channels, such as physical sidelink broadcast channel (PSBCH), physical sidelink discovery channel (PSDCH), physical sidelink shared channel (PSSCH), physical sidelink control channel (PSCCH), and / or physical sidelink feedback channel (PSFCH).

[0049] EPC 160 may include various functional components, including: Mobility Management Entity (MME) 162, other MMEs 164, Serving Gateway 166, Multimedia Broadcast Multicast Service (MBMS) Gateway 168, Broadcast Multicast Service Center (BM-SC) 170, and / or Packet Data Network (PDN) Gateway 172, as in the illustrated example. MME 162 may communicate with Home Subscriber Server (HSS) 174. MME 162 is the control node that handles signaling between UE 104 and EPC 160. Generally, MME 162 provides bearer and connectivity management.

[0050] Generally, user Internet Protocol (IP) packets are transmitted through Serving Gateway 166, which is itself connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation and other functions. PDN Gateway 172 and BM-SC 170 are connected to IP services 176, which may include, for example, the Internet, intranets, IP Multimedia Subsystem (IMS), packet-switched (PS) streaming services, and / or other IP services.

[0051] The BM-SC 170 provides functionality for MBMS user service dispatch and delivery. The BM-SC 170 can serve as an entry point for content provider MBMS transmissions, authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and / or schedule MBMS transmissions. The MBMS Gateway 168 can distribute MBMS services to BS 102 within a Broadcast-Specific Service Single Frequency Network (MBSFN) area, and / or be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0052] 5GC 190 may include various functional components, including: Access and Mobility Management Function (AMF) 192, other AMFs 193, Session Management Function (SMF) 194, and User Plane Function (UPF) 195. AMF 192 may communicate with Unified Data Management (UDM) 196.

[0053] AMF 192 is the control node that handles signaling between UE 104 and 5GC 190. AMF 192 provides services such as Quality of Service (QoS) flow and session management.

[0054] Internet Protocol (IP) packets are transmitted via UPF 195, which connects to IP service 197 and provides UE IP address allocation and other functions for 5GC 190. IP service 197 may include, for example, the Internet, intranet, IMS, PS streaming service, and / or other IP services.

[0055] In various aspects, to give a few examples, network entities or network nodes can be implemented as aggregated base stations, decomposed base stations, components of base stations, integrated access and backhaul (IAB) nodes, relay nodes, and sidelink nodes.

[0056] Figure 2An example decomposed base station 200 architecture is depicted. The decomposed base station 200 architecture may include one or more central units (CUs) 210, which may communicate directly with the core network 220 via a backhaul link, or indirectly with the core network 220 through one or more decomposed 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. CUs 210 may communicate with one or more distributed units (DUs) 230 via corresponding midhaul links (such as F1 interfaces). DUs 230 may communicate with one or more radio units (RUs) 240 via corresponding fronthaul links. RUs 240 may communicate with a corresponding UE 104 via one or more radio frequency (RF) access links. In some specific implementations, UE 104 may be served simultaneously by multiple RUs 240.

[0057] Each unit in a cell (e.g., CU 210, DU 230, RU 240, and near-RT RIC 225, non-RT RIC 215, and SMO frame 205) may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the cells, or an associated processor or controller that provides instructions to the cell's communication interface, may be configured to communicate with one or more other cells via the transmission medium. For example, these cells may include a wired interface configured to receive signals or transmit signals to one or more other cells via a wired transmission medium. Additionally or alternatively, a cell may include a wireless interface that may include a receiver, transmitter, or transceiver (such as a radio frequency (RF) transceiver) configured to receive signals on a wireless transmission medium or transmit signals to one or more other cells, or both.

[0058] In some aspects, CU 210 can host one or more higher-level control functions. Such control functions may include Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Serving Data Adaptation Protocol (SDAP), etc. Each control function can be implemented using an interface configured to signal to other control functions hosted by CU 210. CU 210 can be configured to handle user plane functions (e.g., Central Unit-User Plane (CU-UP)), control plane functions (e.g., Central Unit-Control Plane (CU-CP)), or combinations thereof. In some implementations, CU 210 can be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, CU-UP units can communicate bidirectionally with CU-CP units via an interface such as an E1 interface. CU 210 can be implemented to communicate with DU 230 for network control and signaling, as needed.

[0059] DU 230 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 240s. In some aspects, DU 230 may at least partially host one or more of the Radio Link Control (RLC) layer, 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.) according to functional splits (such as those defined by the 3rd Generation Partnership Project (3GPP). In some aspects, DU 230 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by DU 230 or with control functions hosted by CU 210.

[0060] Lower-layer functionality can be implemented by one or more RU 240s. In some deployments, the RU240 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, or both, based at least in part on functional decomposition (such as lower-layer functional decomposition). In such architectures, the RU 240 may be implemented to handle over-the-air (OTA) communications with one or more UE 104s. In some specific implementations, the 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 allows the DU 230 and CU 210 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0061] SMO framework 205 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, SMO framework 205 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, SMO framework 205 can be configured to interact with a cloud computing platform such as Open Cloud (O-Cloud) 290 to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface such as the 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 implementations, SMO framework 205 can communicate with hardware aspects of the 4G RAN such as Open eNB (O-eNB) 211 via the O1 interface. Additionally, in some implementations, SMO framework 205 can communicate directly with one or more RU 240s via the O1 interface. SMO framework 205 may also include a non-RT RIC 215 configured to support the functionality of SMO framework 205.

[0062] The non-RT RIC 215 can be configured to include logical functions that enable non-real-time control and optimization of RAN elements and resources, including artificial intelligence / machine learning (AI / ML) workflows for model training and updates, or policy-based guidance for applications / features in the near-RT RIC 225. The non-RT RIC 215 can be coupled to or communicate with the near-RT RIC 225, such as via an A1 interface. The near-RT RIC 225 can be configured to include logical functions that enable near real-time control and optimization of RAN elements and resources via an interface, such as via an E2 interface, through data collection and actions, connecting one or more CU 210s, one or more DU 230s, or both, and O-eNBs to the near-RT RIC 225.

[0063] In some implementations, to generate AI / ML models 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. This information can be utilized by the near-RT RIC 225 and can be received from non-network data sources or network functions 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 tune RAN behavior or performance. For example, the non-RT RIC 215 may monitor long-term trends and patterns in performance and use AI / ML models to perform corrective actions via the SMO framework 205 (such as reconfiguration via O1) or by creating RAN management policies (such as A1 policies).

[0064] Figure 3 Various aspects of examples BS 102 and UE 104 are described.

[0065] Generally, BS 102 includes various processors (e.g., 320, 330, 338, and 340), antennas 334a to 334t (collectively referred to as 334), transceivers 332a to 332t (collectively referred to as 332) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., data source 312) and the wireless reception of data (e.g., data sink 339). For example, BS 102 can transmit and receive data between BS 102 and UE 104. BS 102 includes a controller / processor 340 that can be configured to implement the various wireless communication-related functions described herein.

[0066] Generally, UE 104 includes various processors (e.g., 358, 364, 366, and 380), antennas 352a to 352r (collectively referred to as 352), transceivers 354a to 354r (collectively referred to as 354) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., retrieval from data source 362) and the wireless reception of data (e.g., provision to data sink 360). UE 104 includes a controller / processor 380 that can be configured to implement the various functions described herein related to wireless communication.

[0067] Regarding example downlink transmission, BS 102 includes a transmission processor 320 that can receive data from data source 312 and control information from controller / processor 340. The control information may be for a Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical HARQ Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Group Shared PDCCH (GC PDCCH), and / or others. In some examples, this data may be for a Physical Downlink Shared Channel (PDSCH).

[0068] The transmitter processor 320 can process data and control information (e.g., encoding and symbol mapping) to obtain data symbols and control symbols, respectively. The transmitter processor 320 can also generate reference symbols (such as those for the primary synchronization signal (PSS), secondary synchronization signal (SSS), PBCH demodulation reference signal (DMRS), and channel state information reference signal (CSI-RS)).

[0069] The transmit (TX) multiple-input multiple-output (MIMO) processor 330 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, and / or reference symbols where applicable, and can provide the output symbol stream to the modulators (MODs) in transceivers 332a to 332t. Each modulator in transceivers 332a to 332t can process the corresponding output symbol stream to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signal from the modulators in transceivers 332a to 332t can be transmitted via antennas 334a to 334t, respectively.

[0070] To receive downlink transmissions, UE 104 includes antennas 352a to 352r that receive downlink signals from BS 102 and provide the received signals to demodulators (DEMODs) in transceivers 354a to 354r, respectively. Each demodulator in transceivers 354a to 354r can adjust (e.g., filter, amplify, down-convert, and digitize) the corresponding received signal to obtain an input sample. Each demodulator can further process the input sample to obtain the received symbols.

[0071] The MIMO detector 356 acquires received symbols from all demodulators in transceivers 354a-354r, performs MIMO detection on the received symbols where applicable, and provides the detected symbols. The receive processor 358 processes the detected symbols (e.g., demodulation, deinterleaving, and decoding), provides the decoded data of UE 104 to data sink 360, and provides the decoded control information to controller / processor 380.

[0072] Regarding the example uplink transmission, UE 104 further includes a transmission processor 364 that receives and processes data from data source 362 (e.g., for PUSCH) and control information from controller / processor 380 (e.g., for Physical Uplink Control Channel (PUCCH)). Transmission processor 364 can also generate reference symbols for reference signals (e.g., for Sounding Reference Signal (SRS)). Symbols from transmission processor 364 may be pre-decoded by TX MIMO processor 366, where applicable, further processed by modulators in transceivers 354a to 354r (e.g., for SC-FDM), and transmitted to BS 102.

[0073] At BS 102, uplink signals from UE 104 can be received by antennas 334a to 334t, processed by demodulators in transceivers 332a to 332t, detected by MIMO detector 336 where applicable, and further processed by receiver processor 338 to obtain decoded data and control information transmitted by UE 104. Receiver processor 338 can provide the decoded data to data sink 339 and the decoded control information to controller / processor 340.

[0074] Memory 342 and memory 382 can store data and program code for BS 102 and UE 104, respectively.

[0075] Scheduler 344 can schedule UE to send data on the downlink and / or uplink.

[0076] In various respects, BS 102 can be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” can refer to various mechanisms that output data, such as from data source 312, scheduler 344, memory 342, transmit processor 320, controller / processor 340, TX MIMO processor 330, transceivers 332a to 332t, antennas 334a to 334t, and / or other aspects described herein. Similarly, “receiving” can refer to various mechanisms that acquire data, such as from antennas 334a to 334t, transceivers 332a to 332t, RX MIMO detector 336, controller / processor 340, receive processor 338, scheduler 344, memory 342, and / or other aspects described herein.

[0077] In various respects, UE 104 can also be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” can refer to various mechanisms that output data, such as from data source 362, memory 382, ​​transmit processor 364, controller / processor 380, TX MIMO processor 366, transceivers 354a to 354t, antennas 352a to 352t, and / or other aspects described herein. Similarly, “receiving” can refer to various mechanisms that acquire data, such as from antennas 352a to 352t, transceivers 354a to 354t, RX MIMO detector 356, controller / processor 380, receive processor 358, memory 382, ​​and / or other aspects described herein.

[0078] In some respects, one or more processors may be configured to perform various operations (such as those associated with the methods described herein) and respectively send (output) data to another interface configured to send data or receive (obtain) data from another interface configured to receive data.

[0079] Figure 4A , Figure 4B , Figure 4C and Figure 4D Describes the use of wireless communication networks (such as Figure 1 All aspects of the data structure of the wireless communication network 100.

[0080] Specifically, Figure 4A Figure 400 is an example of the first subframe within a 5G (e.g., 5G NR) frame structure. Figure 4B Figure 430 illustrates an example of a DL channel within a 5G subframe. Figure 4C Figure 450 illustrates an example of the second subframe within a 5G frame structure, and Figure 4D Figure 480 illustrates an example of a UL channel within a 5G subframe.

[0081] Wireless communication systems can utilize Orthogonal Frequency Division Multiplexing (OFDM) with a cyclic prefix (CP) on both the uplink and downlink. Such systems can also support half-duplex operation using Time Division Duplex (TDD). OFDM and Single-Carrier Frequency Division Multiplexing (SC-FDM) will (e.g., as...) Figure 4B and Figure 4D The system bandwidth (as depicted in the text) 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.

[0082] Wireless communication frame structures can be frequency division duplex (FDD), where for a specific set of subcarriers, subframes within that set are dedicated to either deep (DL) or ultra-low (UL). Wireless communication frame structures can also be time division duplex (TDD), where for a specific set of subcarriers, subframes within that set are dedicated to both DL and UL.

[0083] exist Figure 4A and Figure 4C In this example, the wireless communication frame structure is TDD, where D stands for DL, U for UL, and X is flexibly used between DL and UL. The UE can configure the time slot format using the received Time Slot Format Indicator (SFI) (dynamically via DL Control Information (DCI) or semi-statically / statically via Radio Resource Control (RRC) signaling). In the depicted example, a 10ms frame is divided into 10 equal-sized 1ms subframes. Each subframe may include one or more time slots. In some examples, each time slot may include 7 or 14 symbols, depending on the time slot format. Subframes may also include micro-slots, which typically have fewer symbols than the entire time slot. Other wireless communication technologies may have different frame structures and / or different channels.

[0084] In some respects, the number of time slots within a subframe is based on the time slot configuration and parameter set. For example, for time slot configuration 0, different parameter sets (μ) 0 to 6 allow 1, 2, 4, 8, 16, 32, and 64 time slots per subframe, respectively. For time slot configuration 1, different parameter sets 0 to 2 allow 2, 4, and 8 time slots per subframe, respectively. Therefore, for time slot configuration 0 and parameter set μ, there are 14 symbols per time slot and 2µ time slots per subframe. The subcarrier spacing and symbol length / duration are functions of the parameter set. The subcarrier spacing can be equal to... kHz, where μ is the parameter set from 0 to 6. Therefore, the parameter set... It has a subcarrier spacing of 15 kHz and a parameter set It has a subcarrier spacing of 960 kHz. The symbol length / duration is negatively correlated with the subcarrier spacing. Figure 4A , Figure 4B , Figure 4C and Figure 4D It provides slot configuration 0 with 14 symbols per slot and parameter set with 4 slots per subframe. Example: The time slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.

[0085] like Figure 4A , Figure 4B , Figure 4C and Figure 4DAs depicted, the resource grid can be used to represent the frame structure. Each time slot includes a resource block (RB) (also known as a physical RB (PRB)) extending for, for example, 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0086] like Figure 4A As illustrated in the example, some REs in the RE carry information for the UE (e.g., Figure 1 and Figure 3 The reference (pilot) signal (RS) for the UE (104) 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).

[0087] Figure 4B Examples of various DL channels within a subframe of a frame are illustrated. The Physical Downlink Control Channel (PDCCH) carries the 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.

[0088] The Primary Synchronization Signal (PSS) can be located within symbol 2 of a specific subframe of the frame. The PSS is generated by the UE (e.g., Figure 1 and Figure 3 104) is used to determine subframe / symbol timing and physical layer identifier.

[0089] The secondary synchronization signal (SSS) can be located in symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the physical layer cell identifier group number and radio frame timing.

[0090] Based on the Physical Layer Identifier and 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 Restricted Frames (RBs) in the system bandwidth. The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information (such as System Information Blocks (SIBs)) not transmitted via the PBCH, and / or paging messages.

[0091] like Figure 4CAs illustrated, some REs in 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 can transmit DMRS for PUCCH and DMRS for PUSCH. PUSCH DMRS can be transmitted, for example, in the first or second symbol before the PUSCH. PUCCH DMRS can be transmitted in different configurations depending on whether a short or long PUCCH is being transmitted and depending on the specific PUCCH format used. UE104 can transmit a Sounding Reference Signal (SRS). SRS can be transmitted, for example, in the last symbol of a subframe. SRS can have a comb structure, and the UE can transmit SRS on one of the comb teeth. SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling of the UL.

[0092] Figure 4D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH can be located as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), pre-decoding matrix indicators (PMI), rank indicators (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry buffer status reports (BSR), power clearance reports (PHR), and / or UCI.

[0093] Aspects related to synchronization grid

[0094] In some systems, a channel grid defines radio frequency (RF) reference frequencies. These RF reference frequencies are mapped to resource elements (REs) and resource blocks (RBs) to identify channel locations. System bandwidth can be divided into multiple operating bands, where uplink channels, downlink channels, or both uplink and downlink channels can be used for communication between user equipment (UE) and network entities (e.g., base stations (BS)). Channels can be configured using different channel bandwidths. Different UE channel bandwidths support different total number of RBs (e.g., maximum transmit bandwidth configuration) N. RB For example, Table 5.3.2-1 of 3GPP TS 38.101-1 v17.7.0 illustrates different N-bandwidth variations in NR depending on SCS and channel bandwidth. RB Examples.

[0095] Global frequency channel grid defines the set of RF reference frequencies F REF In signaling, RF reference frequencies are used to identify the frequency locations of RF channels, SSBs, and other elements. In 5G NR, a global frequency grid is defined for all frequencies from 0 GHz to 100 GHz. The granularity of the global frequency grid is ΔF. 全局Define the frequency step size between RF reference frequencies. The RF reference frequency is determined by the NR absolute radio frequency channel number (NR-ARFCN) (i.e., N). REF The NR-ARFCN can be specified within a range of (0, 1, ..., 2016666) on the global frequency grid. The NR-ARFCN can be used to determine the associated RF reference frequency in MHz. For example, F... REF =F REF-Offs +ΔF 全局 (N REF -N REF-Offs ), where F REF-Offs and N Ref-Offs It is the offset value.

[0096] The channel grid defines a subset of RF reference frequencies that can be used to identify the location of RF channels in the uplink and downlink. Each subset of RF reference frequencies is associated with a different operating frequency band. The RF reference frequencies of an RF channel are mapped to resource elements on a carrier. For each operating frequency band, a subset of frequencies from the global frequency grid is applied to that band and forms a granular ΔF... 栅格 (It can be equal to or greater than ΔF) 全局 The channel grid. For example, Table 5.4.2.3-1 of 3GPP TS 38.101-1 v17.7.0 illustrates an example NR operating band mapped to the RF reference frequency range.

[0097] The synchronization grid indicates the frequency location of the SSB that the UE can use to acquire the system when there is no explicit signaling for synchronization block location.

[0098] SS block frequency positioning SS REF Use the corresponding GSCN to define it. Table 5.4.3.1-1 of 3GPP TS 38.101-1 v17.7.0 illustrates the definition of SS for different frequency ranges. REF Examples of GSCN parameters are provided. The synchronization grid and SCS of the SSB can be defined separately for each frequency band. Clause 5.4.3.2 of 3GPP TS 38.101-1 v17.7.0 provides examples of GSCN parameters. REF Examples of corresponding resource elements. Referring to the example SS / PBCH block modes (Case A to G) in Section 4.1 of 3GPP TS 38.213 v17.7.0, examples of synchronization grids for each frequency band are given in Table 5.4.3.3-1 of 3GPP TS 38.101-1 v17.7.0.

[0099] Aspects related to frequency-converting network-controlled repeaters (FT-NCRS)

[0100] To improve coverage and support the growing number of user equipment (UEs), various approaches have been considered, with network densification and millimeter-wave (mmW) communication considered significant contributions. Network densification refers to the deployment of multiple access points of different types (e.g., in large urban areas). Small nodes such as relay stations, integrated access and backhaul (IAB), reconfigurable smart surfaces (RIS), and repeaters can be deployed to assist communication.

[0101] In some systems, such as 3GPP 5G NR Release 16 and Release 17, IAB nodes are designated as primary relay nodes. While IAB nodes extend coverage, IABs are relatively complex.

[0102] A RIS can be an electromagnetically active artificial structure with low beamforming capability and therefore low accuracy, which can be used to reshape the propagation environment to improve capacity, coverage, and energy efficiency. A RIS can control the electromagnetic properties of RF waves by performing intelligent adaptation (e.g., adapting the phase matrix) to a desired direction of phase shift, without performing any decoding.

[0103] Repeaters (e.g., RF repeaters) enhance coverage but are low-complexity devices, thus significantly reducing costs for operators. Figure 5 Depicting base station 502 (e.g., such as Figure 1 BS 102) serves user equipment 504 (e.g., such as Figure 1 Example repeater 506 of UE 104.

[0104] Repeater 506 can transmit data to base station 502 via backhaul link 510, for example, via NCR forwarding (FWD) function.

[0105] Repeater 506 may receive control information from base station 502, for example, via NCR mobile terminal (MT) through control link 514. The control information can control the forwarding operations of repeater 502. In some aspects, control link 514 is on the Uu interface.

[0106] Repeater 506 can forward data from base station 502 to UE 504 and / or from UE 504 to base station 502 via access link 512. The NCR FWD of repeater 506 can perform uplink and downlink RF signal amplification and forwarding operations between base station 502 and UE 504. In some aspects, repeater 506 can simultaneously maintain the base station-repeater backhaul link 510 and the repeater-user equipment access link 512.

[0107] Currently, such repeaters can be fully network-controlled. An NCR can amplify and forward the signal received by the NCR without performing any decoding. An NCR can use transmit and receive beamforming to control interference. An NCR can be logically integrated into the base station for management purposes.

[0108] In some respects, the NCR is an in-band RF repeater used to extend network coverage in the FR1 and FR2 bands and can operate transparently to the UE. After power amplification and beamforming, the NCR forwards the received RF signal in either the uplink or downlink. Because the NCR FWD only amplifies and beamforms the RF signal, the NCR does not require any advanced digital receiver or transmitter chain. In some examples, the NCR is transparent to the UE.

[0109] In some respects, an NCR can be a frequency-converting NCR (FT-NCR). Besides amplification and forwarding operations, an FT-NCR also converts signals received in a first frequency band and outputs them in a second frequency band. For example, an FT-NCR can output signals in a low-load frequency band for last-mile connectivity to UEs at the cell edge. In some cases, an FT-NCR can output signals in a licensed frequency band or in an unlicensed frequency band. Using an unlicensed frequency band can mitigate interference to other UEs.

[0110] In the exemplary examples discussed herein, network entities (e.g., base stations) are in the first frequency band. Control information is sent to the FT-NCR via a control link (e.g., through the Uu interface) on a licensed frequency band. Network entities transmit control information via a second frequency band. The backhaul link transmits data to the FT-NCR. The FT-NCR uses the third frequency band. The network entity communicates with the UE on an access link (e.g., a licensed or unlicensed frequency band). In some cases, the first frequency band used for the control link is the same as the second frequency band used for backhaul, and a different frequency band from the third frequency band used for the access link. In some cases, the network entity also transmits to the UE on a direct link using either the first or second frequency band.

[0111] Figure 6A An example analog FT-NCR 600a is depicted. The analog FT-NCR 600a receives signals through antenna port A. The analog FT-NCR 600a amplifies the signal, for example, using a low-noise amplifier (LNA) 604, and then widens the received signal band at inverter 606. The signal is converted to baseband or intermediate frequency (IF) at inverter 608, and then up-converted to the output signal frequency band. The signal is amplified using an LNA 610 and output through antenna port B. For signals in the other direction, the analog FT-NCR 600a receives the signal through antenna port B, for example, using an LNA 612 to amplify the signal, and then the received signal frequency band is widened at inverter 614. The signal is converted to baseband (or IR) and up-converted to the output signal frequency band at inverter 616. The signal is amplified using an LNA 618 and output through antenna port A.

[0112] Figure 6B An example digital FT-NCR 600b is depicted. The digital FT-NCR 600b RF front end (RFFE) is shown in the received signal band. After receiving the input signal through antenna port A, the digital FT-NCR 600b uses the modulation parameters through the baseband modulator. Modulation signals and baseband demodulators utilize demodulation parameters P The demodulated signal is used to digitally convert the frequency. RFFE is used in the output signal frequency band. Output signal.

[0113] While FT-NCR allows for coverage extension, it may be transparent to the UE. Therefore, the UE needs to know that the signal relayed by the FT-NCR originates from the same cell as the original signal transmitted from the base station in order to distinguish signals associated with that cell from signals transmitted from other neighboring cells. For example, the UE may need to identify synchronization signal blocks (SSBs) received from the FT-NCR as associated with a cell, even if they are received on different frequency bands, in order to perform the Random Access Channel (RACH) procedure with the correct cell. Therefore, the UE may need to be configured to distinguish between signals from the same cell and signals from different cells during initial access or during idle-mode paging.

[0114] and utilization FT-NCR Enhanced initial access related aspects

[0115] According to some aspects, network entities (e.g., base stations) configure frequency-switching network-controlled repeaters (FT-NCRs) to switch the burst transmission of synchronization signals (SS) received from the network entity on the backhaul band on a first synchronization channel grid associated with the backhaul band to the access link band and a second synchronization channel grid associated with the access link band.

[0116] In some respects, FT-NCR converts SS burst transmissions to non-legacy synchronization grids. Only non-legacy UEs can decode SSBs on non-legacy synchronization grids. Non-legacy synchronization grids can be additional grids defined for FT-NCR operation.

[0117] In some respects, FT-NCR will convert the Master Information Block (MIB) mapped to the Control Resource Set (CORESET) to the access link frequency band, and will also map CORESET transmissions to the access link frequency band. In other respects, the same Resource Block (RB) offset and timeslot offset are indicated in the MIB for both the access link and the backhaul link. That is, FT-NCR may not change the RB offset and timeslot offset when performing frequency conversion.

[0118] In some aspects, network entities transmit additional separate SS bursts for FT-NCR operation. In some aspects, additional SS bursts are associated with different transmission directions. In some aspects, additional SS bursts are transmitted by network entities to the FT-NCR on a non-legacy grid via backhaul links, control links, and / or Uu interfaces. In some aspects, network entities indicate the location of the additional SS bursts in the Initial System Information Block (SIB). In some aspects, the Initial SIB indicates one or more additional uplink bands (or uplink channels) and / or one or more additional downlink bands (or downlink channels) associated with the access link. In some aspects, the additional bands are associated with the location of the additional SS bursts. In some aspects, a user equipment (UE) receiving one additional SS burst in an additional SS burst on the Uu interface band (e.g., via a direct link instead of the access link band) will suppress the associated CORESET indicated in the decoding MIB and suppress the transmission of a Random Access Channel (RACH) request in response to the SS burst.

[0119] In some respects, the initial SIB contains information for the UE to perform RACH in response to an SS burst received on the access link band.

[0120] Figure 7 A process flow 700 is described for communication within a network between network entity 702, UE 704, and frequency-switching network control repeater (FT-NCR) 706. In some aspects, network entity 702 may be related to... Figure 1 and Figure 3 The BS 102 depicted and described or related to Figure 2 Examples of decomposed base stations depicted and described. Similarly, UE 704 could be about... Figure 1 and Figure 3 Examples of UE 104 depicted and described. In some respects, FT-NCR 706 can be relative to Figure 5 The NCR 506 described and depicted, relative to Figure 6A The analog NCR 600a depicted and described or relative to it. Figure 6BExamples of digital NCR 600b are depicted and described. However, in other respects, UE 704 can be another type of wireless communication device, network entity 702 can be another type of network entity or network node, and FT-NCR 706 can be another type of repeater, such as those described herein.

[0121] like Figure 7 As shown, the FT-NCR 706 may include a mobile terminal (MT) 710 and a forwarding logical entity 708. The MT 710 can communicate with the network entity 702 via a control link, which can use a first frequency band f1 (e.g., FWD 708 can communicate with network entity 702 via a backhaul link through the Uu interface, which uses a second frequency band (e.g., Network entity 702 can also be used in the second frequency band (e.g., The network entity 702 communicates with UE 704 via the Uu interface. However, UE 704 may not be able to receive signals from network entity 702. For example, UE 704 may be a cell edge UE, or there may be obstructions in the network environment due to signal interference. FWD 708 can communicate with 704 via an access link that can use a third frequency band (e.g., In some respects, the second frequency band used for the backhaul link (e.g., ) and the third frequency band used for access links (e.g., Both are in the same frequency range and both are licensed frequency bands.

[0122] At point 712, network entity 702 can configure the FT-NCR 706 using control information via the control link. The control information can configure the FT-NCR 706 for conversion, amplification, and forwarding operations.

[0123] At 714, network entity 702 transmits an SS burst for UE 704. This can be done in the second frequency band (e.g., The SS burst is transmitted via the Uu interface with the first synchronization grid. As shown in the figure, the SS burst may not reach UE 704, but the SS burst can be received by FT-NCR 706 via the backhaul link.

[0124] In some respects, SS bursts are transmitted periodically. The transmission pattern may depend on the subcarrier spacing (SCS) and frequency range. Within a window, a set of SS bursts may be transmitted (e.g., up to 64 SSBs may be transmitted using beam scanning). An SS burst may include an SSB and a physical broadcast channel (PBCH) carrying a MIB indicating the initial CORESET (e.g., CORESET0). For example, the MIB may include parameters that determine the common CORESET, the common search space, and some PDCCH parameters. pdcch-ConfigSIB1 CORESET can be a set of physical resources located in a specific search space region in the frequency domain (e.g., a specific region on the downlink resource grid) and a set of parameters used to carry the PDCCH.

[0125] When the FT-NCR 706 passes through the second frequency band (e.g., When the backhaul link on the FWD 708 receives the SS burst with the first synchronization grid, the FWD 708 amplifies the SS burst transmission and switches the SS burst transmission to the third frequency band (e.g., The second synchronization grid is used to burst to the UE 704 relay SS via the access link at 716. In some respects, the second synchronization grid is a non-legacy synchronization grid.

[0126] Once UE 704 receives an SS burst with MIB, UE 704 can determine the initial CORESET and know where to monitor PDCCH.

[0127] At 718, network entity 702 transmits PDCCH transmission in the CORESET indicated in the MIB. PDCCH transmission includes downlink control information (DCI) scheduled for transmission on the Physical Downlink Shared Channel (PDSCH) carrying the Initial System Information Block (SIB). This can be done in the second frequency band (e.g., The PDCCH transmission is carried out via the Uu interface with the first synchronization grid. As shown in the figure, the PDCCH transmission may not reach UE 704, but it can be received by FT-NCR 706 via the backhaul link. FWD 708 amplifies the PDCCH transmission and converts it to the third frequency band (e.g., The second synchronization grid is sent to the UE 704 relay PDCCH via the access link at 720.

[0128] At 722, network entity 702 sends the PDSCH transmission indicated in the DCI. As shown, the PDSCH transmission may not reach UE 704, but it can be received by FT-NCR 706 via the backhaul link. FWD 708 amplifies the PDSCH transmission and converts it to a third frequency band (e.g., The PDSCH is transmitted to the UE 704 relay via the access link at 724. The PDSCH transmission may include an initial SIB (e.g., SIB1).

[0129] In some aspects, the initial SIB indicates a first SS burst location set associated with the serving cell and a second SS burst location set associated with the one or more additional frequency bands used for the downlink. In some aspects, the initial SIB indicates a second SS burst location set 810 from the first SS burst location set 805, such as... Figure 8A As shown. In some aspects, the initial SIB indicates the first SS burst location set 805 via a first bit map and the second SS burst location set 810 via a second bit map, wherein the second SS burst location set is separate from the first SS burst location set, as shown. Figure 8B As shown.

[0130] The initial SIB may carry information about the SSB. For example, the initial SIB may include parameters configuring the time-domain transmission mode of the serving cell's SSB (e.g., ServingCellConfigCommonSIB In IE ssb-PositionInBurst In some aspects, the initial SIB also includes configuring a list of downlink frequency bands (e.g., frequencyInfoDL Parameters of IE (e.g., downlinkConfigCommonSIB ) and configure the uplink frequency band list (e.g., frequencyInfoUL Parameters of IE (e.g., uplinkConfigCommonSIB In some aspects, the initial SIB also includes parameters for configuring one or more supplementary uplink (SUL) bands (e.g., supplementaryUplink IE).

[0131] Depending on certain aspects, the initial SIB may also be configured with one or more alternative uplink bands and / or one or more alternative downlink bands. For example, ServingCellConfigCommonSIB It may include one or more additional frequencyInfo IE, the one or more appendices frequencyInfo IE indicates the additional uplink and / or downlink frequency bands associated with the access link between the UE and the FT-NCR.

[0132] At 726, UE 704 can be based on the third frequency band (e.g., The SS burst is received on the second synchronization grid to determine that the SS burst is associated with the serving cell (e.g., network entity 702).

[0133] At 728, UE 704, based on determining that the SS burst received from FT-NCR 706 is associated with the same serving cell (e.g., network entity 702), transmits a RACH request to the serving cell (e.g., network entity 702) in response to the SS burst. For example, UE 704 may transmit the RACH request to network entity 702 via FT-NCR 706. FT-NCR 706 can receive the RACH request via the access link. FWD 708 amplifies the RACH request transmission and switches the RACH request transmission to a second frequency band (e.g., ...). ) to send a RACH request to network entity 702 relay via the backhaul link at 730.

[0134] In some respects, UE 704 utilizes (e.g., in the initial SIB) a first RACH configuration for the frequency band configured for the serving cell and a second RACH configuration for additional alternative frequency bands associated with the access link. UE 704 can use one frequency band from the alternative frequency bands and the second RACH configuration to transmit RACH request messages.

[0135] In some aspects, the first RACH configuration may indicate a first Reference Signal Received Power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration may indicate a second RSRP detection threshold associated with the second synchronization grid. Therefore, for an SS burst received on the first synchronization grid, UE 704 may use the first RSRP detection threshold when determining whether to transmit a RACH request in response to the SS burst, and for an SS burst received on the second synchronization grid, UE 704 may use the second RSRP detection threshold when determining whether to transmit a RACH request in response to the SS burst.

[0136] In some respects, a first RACH configuration may indicate a first RACH resource associated with a first synchronization grid, and a second RACH configuration may indicate a second RACH resource associated with a second synchronization grid.

[0137] In some aspects, the first RACH configuration may indicate a first RACH format associated with the first synchronization grid (e.g., RACH format A), and the second RACH configuration may indicate a second RACH format associated with the second synchronization grid (e.g., RACH format C). Therefore, for an SS burst received on the first synchronization grid, UE 704 may use the first RACH format to transmit a RACH request in response to the SS burst, and for an SS burst received on the second synchronization grid, UE 704 may use the second RACH format to transmit a RACH request in response to the SS burst.

[0138] In some aspects, the first RACH configuration may indicate the maximum transmit power of the first RACH preamble associated with the first synchronization grid, and the second RACH configuration may indicate the maximum transmit power of the second RACH preamble associated with the second synchronization grid. Therefore, for an SS burst received on the first synchronization grid, UE 704 may use the maximum transmit power of the first RACH preamble to transmit a RACH request in response to the SS burst, and for an SS burst received on the second synchronization grid, UE 704 may use the maximum transmit power of the second RACH preamble to transmit a RACH request in response to the SS burst.

[0139] In some respects, the first RACH configuration may indicate a first RACH response time window associated with the first synchronization grid, and the second RACH configuration may indicate a second RACH response time window associated with the second synchronization grid. Therefore, for a RACH request transmitted in response to an SS burst received on the first synchronization grid, UE 704 may use the first RACH response time window while waiting for a RACH response (RAR), and for a RACH request transmitted in response to an SS burst received on the second synchronization grid, UE 704 may use the second RACH response time window while waiting for a RAR.

[0140] Depending on certain aspects, UE 704 may use one or more additional uplink bands configured in the initial SIB to transmit uplink transmissions to network entity 702 via the access link.

[0141] Depending on certain aspects, UE 704 may use one or more additional downlink bands configured in the initial SIB to receive downlink transmissions from network entity 702 via an access link.

[0142] In some aspects, UE 704 will only monitor SS bursts transmitted on the third frequency band associated with the access link and / or will only transmit RACH requests in response to these SS bursts. In some aspects, UE 704 will only monitor SS bursts transmitted on the frequency band associated with the Uu interface and / or will only transmit RACH requests in response to these SS bursts. In some aspects, UE 704 will monitor both SS bursts transmitted on the access link and the Uu direct link and / or will transmit RACH requests in response to SS bursts transmitted on either the access link or the Uu direct link. In some aspects, UE 704 determines the link to monitor / transmit RACH based on signal quality standards, UE capabilities, or other factors.

[0143] In some respects, UE 704 will transmit data to network entity 702 via direct link only, via access link only, or via both direct link and access link only.

[0144] In some respects, the initial SIB indication is used to determine whether to use the one or more uplink frequency bands for uplink data transmission or to use the one or more additional uplink frequency bands for uplink data transmission. In some respects, this information includes signal quality measurement thresholds (e.g., RSRP and / or Received Signal Strength Indicator (RSSI)). For example, UE 704 may use the one or more uplink frequency bands for uplink data transmission when the signal quality measurement of the serving cell is equal to or higher than the signal quality measurement threshold, and UE 704 may use the one or more additional uplink frequency bands for uplink data transmission when the signal quality measurement of the serving cell is lower than the signal quality measurement threshold.

[0145] Example Operation

[0146] Figure 9 It shows the user equipment (UE) (such as Figure 1 and Figure 3 Example of a method 900 for wireless communication of UE 104.

[0147] Method 900 begins at step 905: receiving a synchronization signal (SS) burst from a repeater on a first frequency band with a first synchronization grid, wherein the SS burst comprises an SS block (SSB) and a physical broadcast channel (PBCH) carrying a Master Information Block (MIB) indicating the Initial Control Resource Set (CORESET). In some cases, the operation of this step involves, as described in Reference Figure 12 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0148] Method 900 then proceeds to step 910: determining the association of the SS burst with the serving cell based on the first synchronization grid, wherein the serving cell uses a second synchronization grid associated with the second frequency band. In some cases, the operation of this step involves, as described in the reference... Figure 12 The circuit and / or code described for determination, or that can be executed by the circuit and / or the code.

[0149] In some respects, the first frequency band and the first synchronization grid are associated with the access link between the UE and the repeater.

[0150] In some respects, the first and second frequency bands are within the same frequency range (FR) in the licensed spectrum.

[0151] In some aspects, method 900 further includes: receiving, in the CORESET indicated in the MIB, a physical downlink control channel (PDCCH) transmission from a repeater on a first frequency band with a first synchronization grid, the PDCCH transmission scheduling the transmission of a physical downlink shared channel (PDSCH) carrying an initial system information block (SIB). In some cases, the operation of this step involves, as referenced in [reference] Figure 12 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0152] In some respects, the initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and the additional frequency bands are associated with the access link between the UE and the repeater.

[0153] In some aspects, method 900 further includes: transmitting one or more uplink transmissions to the serving cell via one of the one or more additional frequency bands used for the uplink. In some cases, the operation of this step involves, as referenced... Figure 12 The circuitry and / or code described for transmitting, or the code that can be executed by the circuitry and / or the code.

[0154] In some aspects, method 900 further includes: receiving one or more transmissions from a repeater on a first synchronization grid in one of the one or more additional frequency bands used for the downlink. In some cases, the operation of this step involves, as referenced... Figure 12 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0155] In some aspects, method 900 further includes: determining the one or more transmissions associated with the serving cell. In some cases, this step involves operations such as those described in reference... Figure 12 The circuit and / or code described for determination, or that can be executed by the circuit and / or the code.

[0156] In some respects, the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and associated with the first synchronization grid, and a second RACH configuration associated with the one or more frequency bands and associated with the second synchronization grid.

[0157] In some aspects, the one or more transmissions on the first synchronization grid include one or more SSBs, and the method further includes: in response to the one or more SSBs received on the first synchronization grid, transmitting a RACH request message for the serving cell based on a second RACH configuration.

[0158] In some respects, the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

[0159] In some respects, a first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and a second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

[0160] In some respects, the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

[0161] In some respects, the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

[0162] In some respects, the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

[0163] In some respects, the initial SIB indication is used to determine whether to use one or more frequency bands for data transmission or to use one or more additional frequency bands for data transmission.

[0164] In some respects, this information includes signal quality measurement thresholds.

[0165] In some respects, the initial SIB indicates a first set of SS burst locations associated with the serving cell and a second set of SS burst locations associated with the one or more additional frequency bands.

[0166] In some respects, the initial SIB indicates the second SS burst location set from the first SS burst location set.

[0167] In some respects, the initial SIB indicates the first SS burst location set via a first bit map and the second SS burst location set via a second bit map.

[0168] In one aspect, method 900 or any aspect thereof may be made by means of a device (such as...) Figure 12 The communication device 1200 is used to perform the method, which includes various components capable of operating, being configured, or adapted to perform the method 900. The communication device 1200 is described in further detail below.

[0169] It should be noted that Figure 9 This is merely one example of a method, and other methods that include fewer, additional, or alternative steps may also be consistent with this disclosure.

[0170] Figure 10 This shows the network entities (such as Figure 1 and Figure 3 BS 102 or as relative to Figure 2 An example of a method 1000 for wireless communication using a decomposed base station (discussed in this paper).

[0171] Method 1000 begins with step 1005: configuring the repeater associated with the network entity to: convert transmissions from the network entity to a first frequency band and a first synchronization grid, and forward the converted transmissions to the user equipment (UE). In some cases, the operation of this step involves, as described in reference... Figure 13 The circuitry and / or code described for configuration, or the circuitry and / or code that can be executed.

[0172] Method 1000 then proceeds to step 1010: outputting a synchronization signal (SS) burst using a second synchronization grid on the second frequency band, wherein the SS burst comprises an SS block (SSB) and a physical broadcast channel (PBCH) carrying a Master Information Block (MIB) indicating the Initial Control Resource Set (CORESET). In some cases, the operation of this step involves, as referenced... Figure 13 The circuitry and / or code described for the output, or the code that can be executed by the circuitry and / or the code.

[0173] In some respects, the first frequency band and the first synchronization grid are associated with the access link between the UE and the repeater.

[0174] In some respects, the first and second frequency bands are within the same frequency range (FR) in the licensed spectrum.

[0175] In some aspects, method 1000 further includes: in the CORESET indicated in the MIB, outputting a Physical Downlink Control Channel (PDCCH) transmission in a second frequency band with a second synchronization grid, the PDCCH transmission scheduling the transmission of a Physical Downlink Shared Channel (PDSCH) carrying an Initial System Information Block (SIB). In some cases, the operation of this step involves, as referenced... Figure 13The circuitry and / or code described for the output, or the code that can be executed by the circuitry and / or the code.

[0176] In some respects, the initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and the additional frequency bands are associated with the access link between the UE and the repeater.

[0177] In some aspects, method 1000 further includes: obtaining one or more uplink transmissions from the UE via a repeater on one of the one or more additional frequency bands used for the uplink. In some cases, the operation of this step involves, as referenced... Figure 13 The circuit and / or code described for obtaining, or that can be executed by the circuit and / or the code.

[0178] In some aspects, method 1000 further includes: outputting one or more transmissions on one of the one or more additional frequency bands used for the downlink. In some cases, the operation of this step involves, as referenced... Figure 13 The circuitry and / or code described for the output, or the code that can be executed by the circuitry and / or the code.

[0179] In some respects, the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and associated with the first synchronization grid, and a second RACH configuration associated with the one or more frequency bands and associated with the second synchronization grid.

[0180] In some aspects, method 1000 further includes: obtaining from the UE a RACH request message in response to one or more additional SSBs transmitted on the second synchronization grid, based on a second RACH configuration. In some cases, the operation of this step involves, as referenced... Figure 13 The circuit and / or code described for obtaining, or that can be executed by the circuit and / or the code.

[0181] In some respects, the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

[0182] In some respects, a first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and a second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

[0183] In some respects, the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

[0184] In some respects, the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

[0185] In some respects, the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

[0186] In some respects, the initial SIB indication is used to determine whether to use one or more frequency bands for data transmission or to use one or more additional frequency bands for data transmission.

[0187] In some respects, this information includes signal quality measurement thresholds.

[0188] In some respects, the initial SIB indicates a first set of SS burst locations associated with the serving cell and a second set of SS burst locations associated with the one or more additional frequency bands.

[0189] In some respects, the initial SIB indicates the second SS burst location set from the first SS burst location set.

[0190] In some respects, the initial SIB indicates the first SS burst location set via a first bit map and the second SS burst location set via a second bit map.

[0191] In some respects, this configuration is carried out via a third frequency band associated with the control link between network entities and repeaters.

[0192] In one aspect, method 1000 or any aspect thereof may be made by means of a device (such as...) Figure 13 The communication device 1300 is used to perform the method, which includes various components that are operable to, configured to, or adapted to perform the method 1000. The communication device 1300 is described in further detail below.

[0193] It should be noted that Figure 10 This is merely one example of a method, and other methods that include fewer, additional, or alternative steps may also be consistent with this disclosure.

[0194] Figure 11An example of a method 1100 for wireless communication using a repeater is shown. In some examples, the repeater is user equipment, such as... Figure 1 and Figure 3 UE 104. In some examples, the repeater is a network entity, such as... Figure 1 and Figure 3 BS102 or as relative to Figure 2 The decomposed base station under discussion.

[0195] Method 1100 begins at step 1105: receiving a synchronization signal (SS) burst from a network entity in a first frequency band with a first synchronization grid, wherein the SS burst comprises an SS block (SSB) and a physical broadcast channel (PBCH) carrying a Master Information Block (MIB) indicating the Initial Control Resource Set (CORESET). In some cases, the operation of this step involves, as referenced... Figure 14 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0196] Then, method 1100 proceeds to step 1110: forwarding the SS burst to the user equipment (UE) in the second frequency band using the second synchronization grid. In some cases, the operation of this step involves, as described in the reference... Figure 14 The circuitry and / or code described for forwarding, or the code that can be executed by such circuitry and / or code.

[0197] In some aspects, method 1100 further includes: receiving signaling from a network entity that configures the repeater to: switch transmissions from the network entity to a second frequency band and a second synchronization grid, and forward the switched transmissions to the UE. In some cases, the operation of this step involves, as referenced... Figure 14 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0198] In some respects, this configuration is carried out via a third frequency band associated with the control link between network entities and repeaters.

[0199] In some respects, the second frequency band and the second synchronization grid are associated with the access link between the UE and the repeater.

[0200] In some respects, the first and second frequency bands are within the same frequency range (FR) in the licensed spectrum.

[0201] In some aspects, method 1100 further includes: receiving, in the CORESET indicated in the MIB, a physical downlink control channel (PDCCH) transmission from a network entity on a first frequency band with a first synchronization grid, the PDCCH transmission scheduling the transmission of a physical downlink shared channel (PDSCH) carrying an initial system information block (SIB). In some cases, the operation of this step involves, as referenced in [reference] Figure 14 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0202] In some aspects, method 1100 further includes: forwarding PDCCH transmission to the UE in a second synchronization grid on a second frequency band. In some cases, the operation of this step involves, as described in reference... Figure 14 The circuitry and / or code described for forwarding, or the code that can be executed by such circuitry and / or code.

[0203] In some respects, the initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and the additional frequency bands are associated with the access link between the UE and the repeater.

[0204] In some aspects, method 1100 further includes: receiving from the UE one or more uplink transmissions for a network entity via one of the one or more additional frequency bands used for the uplink. In some cases, the operation of this step involves, as referenced... Figure 14 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0205] In some aspects, method 1100 further includes: forwarding the one or more uplink transmissions to a network entity in a first frequency band. In some cases, the operation of this step involves, as described in reference... Figure 14 The circuitry and / or code described for forwarding, or the code that can be executed by such circuitry and / or code.

[0206] In some aspects, method 1100 further includes: receiving one or more transmissions from a network entity in a first frequency band. In some cases, the operation of this step involves, as referenced... Figure 14 The circuitry and / or code described for receiving, or the code that can be executed by the circuitry and / or the code.

[0207] In some aspects, method 1100 further includes: forwarding the one or more transmissions to the UE in a first synchronization grid on one of the one or more additional frequency bands used for the downlink. In some cases, the operation of this step involves, as referenced... Figure 14 The circuitry and / or code described for forwarding, or the code that can be executed by such circuitry and / or code.

[0208] In some respects, the initial SIB indicates a first set of SS burst locations associated with a network entity and a second set of SS burst locations associated with the one or more additional frequency bands.

[0209] In some respects, the initial SIB indicates the second SS burst location set from the first SS burst location set.

[0210] In some respects, the initial SIB indicates the first SS burst location set via a first bit map and the second SS burst location set via a second bit map.

[0211] In some respects, the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and associated with the first synchronization grid, and a second RACH configuration associated with the one or more frequency bands and associated with the second synchronization grid.

[0212] In some aspects, the one or more transmissions on the first synchronization grid include one or more SSBs, and the method further includes: receiving a RACH request message for a network entity in response to the one or more SSBs on the first synchronization grid based on a second RACH configuration.

[0213] In some respects, the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

[0214] In some respects, a first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and a second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

[0215] In some respects, the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

[0216] In some respects, the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

[0217] In some respects, the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

[0218] In some respects, the initial SIB indication is used to determine whether to use one or more frequency bands for data transmission or to use one or more additional frequency bands for data transmission.

[0219] In some respects, this information includes signal quality measurement thresholds.

[0220] In one aspect, method 1100 or any aspect thereof may be made by means of a device (such as...) Figure 14 The communication device 1400 is used to perform the method, which includes various components that are operable to, configured to, or adapted to perform the method 1100. The communication device 1400 is described in further detail below.

[0221] It should be noted that Figure 11 This is merely one example of a method, and other methods that include fewer, additional, or alternative steps may also be consistent with this disclosure.

[0222] Example communication device

[0223] Figure 12 Various aspects of the example communication device 1200 are described. In some aspects, the communication device 1200 is user equipment, such as those described above. Figure 1 and Figure 3 The UE 104 described.

[0224] Communication device 1200 includes a processing system 1205 coupled to a transceiver 1255 (e.g., a transmitter and / or receiver). Transceiver 1255 is configured to transmit and receive signals for communication device 1200 via antenna 1260, such as various signals as described herein. Processing system 1205 may be configured to perform processing functions for communication device 1200, including processing signals received by communication device 1200 and / or to be transmitted by the communication device.

[0225] Processing system 1205 includes one or more processors 1210. In various aspects, the one or more processors 1210 may represent one or more of a receive processor 358, a transmit processor 364, a TX MIMO processor 366, and / or a controller / processor 380, as relative to... Figure 3 As described. One or more processors 1210 are coupled to a computer-readable medium / memory 1230 via a bus 1250. In some aspects, the computer-readable medium / memory 1230 is configured to store instructions (e.g., computer-executable code) that, when executed by one or more processors 1210, cause one or more processors 1210 to perform relative to Figure 9 The described method 900 or any aspect thereof. It should be noted that references to processors performing the functions of communication device 1200 may include one or more processors 1210 performing those functions of communication device 1200.

[0226] In the depicted example, computer-readable medium / memory 1230 stores code (e.g., executable instructions), such as code 1235 for receiving, code 1240 for determining, and code 1245 for transmitting. Processing the code 1235 for receiving, the code 1240 for determining, and the code 1245 for transmitting causes the communication device 1200 to perform actions relative to... Figure 9 The method described 900 or any aspect thereof.

[0227] One or more processors 1210 include circuitry configured to implement (e.g., execute) code stored in computer-readable medium / memory 1230, including circuitry such as circuitry 1215 for receiving, circuitry 1220 for determining, and circuitry 1225 for transmitting. Processing using the circuitry 1215 for receiving, the circuitry 1220 for determining, and the circuitry 1225 for transmitting enables the communication device 1200 to perform operations relative to... Figure 9 The method described 900 or any aspect thereof.

[0228] The various components of the communication device 1200 can provide for performing relative to Figure 9 The components of the described method 900 or any aspect thereof. For example, components for sending, transmitting, or outputting for transmission may include... Figure 3 The transceiver 354 and / or antenna 352 of the illustrated UE104 and / or Figure 12 The communication device 1200 includes a transceiver 1255 and an antenna 1260. Components for receiving or acquiring data may include... Figure 3 The transceiver 354 and / or antenna 352 of the illustrated UE 104 and / or Figure 12The transceiver 1255 and antenna 1260 of the communication equipment 1200.

[0229] Figure 13 Various aspects of the example communication device 1300 are described. In some aspects, the communication device 1300 is a network entity, such as... Figure 1 and Figure 3 BS 102 or as relative to Figure 2 The decomposed base station under discussion.

[0230] Communication device 1300 includes a processing system 1305 coupled to a transceiver 1355 (e.g., a transmitter and / or receiver) and / or a network interface 1365. The transceiver 1355 is configured to transmit and receive signals for communication device 1300 via an antenna 1360, such as various signals as described herein. The network interface 1365 is configured to transmit and receive signals for communication device 1300 via a communication link (such as, as described herein, relative to...). Figure 2 The described backhaul link, midhaul link, and / or fronthaul link acquire and transmit signals for the communication device 1300. The processing system 1305 can be configured to perform processing functions for the communication device 1300, including processing signals received by the communication device 1300 and / or to be transmitted by the communication device.

[0231] Processing system 1305 includes one or more processors 1310. In various aspects, the one or more processors 1310 may represent one or more of a receive processor 338, a transmit processor 320, a TX MIMO processor 330, and / or a controller / processor 340, as relative to... Figure 3 As described. One or more processors 1310 are coupled to a computer-readable medium / memory 1330 via a bus 1350. In some aspects, the computer-readable medium / memory 1330 is configured to store instructions (e.g., computer-executable code) that, when executed by one or more processors 1310, cause one or more processors 1310 to perform relative to Figure 10 The method 1000 described herein or any aspect thereof. It should be noted that references to the processor performing the function of the communication device 1300 may include one or more processors 1310 of the communication device 1300 performing that function.

[0232] In the depicted example, computer-readable medium / memory 1330 stores code (e.g., executable instructions), such as code 1335 for configuration, code 1340 for output, and code 1345 for acquisition. Processing the code 1335 for configuration, the code 1340 for output, and the code 1345 for acquisition causes the communication device 1300 to perform corresponding actions. Figure 10 The method 1000 described or any aspect thereof.

[0233] One or more processors 1310 include circuitry configured to implement (e.g., execute) code stored in computer-readable medium / memory 1330, including circuitry such as configuration circuitry 1315, output circuitry 1320, and acquisition circuitry 1325. Processing using configuration circuitry 1315, output circuitry 1320, and acquisition circuitry 1325 causes communication device 1300 to perform actions relative to... Figure 10 The method 1000 described or any aspect thereof.

[0234] The various components of the communication device 1300 can provide for performing relative to Figure 10 The components of the described method 1000 or any aspect thereof. Components for sending, transmitting, or outputting for transmission may include... Figure 3 The transceiver 332 and / or antenna 334 of the illustrated BS 102 and / or Figure 13 The communication device 1300 includes a transceiver 1355 and an antenna 1360. Components for receiving or acquiring data may include... Figure 3 The transceiver 332 and / or antenna 334 of the illustrated BS 102 Figure 13 The transceiver 1355 and antenna 1360 of the communication device 1300.

[0235] Figure 14 Various aspects of the example communication device 1400 are described. In some aspects, the communication device 1400 is user equipment, as described above. Figure 1 and Figure 3 The UE 104 is described. In some respects, the communication device 1400 is a network entity, such as... Figure 1 and Figure 3 BS 102 or as about Figure 2 The decomposed base station under discussion.

[0236] Communication device 1400 includes a processing system 1405 coupled to a transceiver 1445 (e.g., a transmitter and / or receiver). In some aspects (e.g., when communication device 1400 is a network entity), processing system 1405 may be coupled to network interface 1455, which is configured to communicate via a communication link (such as, as described herein, relative to...). Figure 2The described backhaul link, midhaul link, and / or fronthaul link acquire and transmit signals for communication device 1400. Transceiver 1445 is configured to transmit and receive signals for communication device 1400 via antenna 1450, such as the various signals described herein. Processing system 1405 may be configured to perform processing functions for communication device 1400, including processing signals received by communication device 1400 and / or to be transmitted by the communication device.

[0237] Processing system 1405 includes one or more processors 1410. In various aspects, the one or more processors 1410 may represent one or more of a receive processor 358, a transmit processor 364, a TX MIMO processor 366, and / or a controller / processor 380, as relative to... Figure 3 As described. In various respects, one or more processors 1410 may represent one or more of the following: receive processor 338, transmit processor 320, TX MIMO processor 330, and / or controller / processor 340, as relative to Figure 3 As described. One or more processors 1410 are coupled to a computer-readable medium / memory 1425 via a bus 1440. In some aspects, the computer-readable medium / memory 1425 is configured to store instructions (e.g., computer-executable code) that, when executed by one or more processors 1410, cause one or more processors 1410 to perform relative to Figure 11 The method 1100 described herein or any aspect thereof. It should be noted that references to processors performing the functions of communication device 1400 may include one or more processors 1410 performing such functions of communication device 1400.

[0238] In the depicted example, computer-readable medium / memory 1425 stores code (e.g., executable instructions), such as code 1430 for receiving and code 1435 for forwarding. Processing of the code 1430 for receiving and the code 1435 for forwarding causes the communication device 1400 to perform actions relative to... Figure 11 The method 1100 described or any aspect thereof.

[0239] One or more processors 1410 include circuitry configured to implement (e.g., execute) code stored in a computer-readable medium / memory 1425, including circuitry 1415 for receiving and circuitry 1420 for forwarding. Processing using the circuitry 1415 for receiving and the circuitry 1420 for forwarding enables the communication device 1400 to perform operations relative to... Figure 11 The method 1100 described or any aspect thereof.

[0240] The various components of the communication device 1400 can provide for performing relative to Figure 11 The described method 1100 or any component related thereto. For example, components for sending, transmitting, or outputting for transmission may include... Figure 3 The transceiver 354 and / or antenna 352 of the illustrated UE 104 Figure 3 The transceiver 332 and / or antenna 334 of the illustrated BS 102 and / or Figure 14 The communication device 1400 includes a transceiver 1445 and an antenna 1450. Components for receiving or acquiring data may include... Figure 3 The transceiver 354 and / or antenna 352 of the illustrated UE 104 Figure 3 The transceiver 332 and / or antenna 334 of the illustrated BS 102 and / or Figure 14 The transceiver 1445 and antenna 1450 of the communication device 1400.

[0241] Example Terms

[0242] Specific implementation examples are described in the following numbered clauses: Clause 1: A method for wireless communication by a user equipment (UE), the method comprising: receiving a synchronization signal (SS) burst from a repeater in a first frequency band with a first synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET); and determining, based on the first synchronization grid, that the SS burst is associated with a serving cell, wherein the serving cell uses a second synchronization grid associated with a second frequency band.

[0243] Clause 2: The method according to Clause 1, wherein the first frequency band and the first synchronization grid are associated with the access link between the UE and the repeater.

[0244] Clause 3: The method described in any combination of Clauses 1 to 2, wherein the first frequency band and the second frequency band are within the same frequency range (FR) in the licensed spectrum.

[0245] Clause 4: The method according to any combination of Clauses 1 to 3, further comprising: receiving, in the CORESET indicated in the MIB, a Physical Downlink Control Channel (PDCCH) transmission on the first frequency band with the first synchronization grid, the PDCCH transmission scheduling a Physical Downlink Shared Channel (PDSCH) transmission carrying an Initial System Information Block (SIB).

[0246] Clause 5: The method according to Clause 4, wherein: the initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and the additional frequency bands are associated with the access link between the UE and the repeater.

[0247] Clause 6: The method according to Clause 5 further comprises: transmitting one or more uplink transmissions to the serving cell via one of the one or more additional frequency bands for uplink.

[0248] Clause 7: The method according to Clause 5 further comprises: receiving one or more transmissions from the repeater on the first synchronization grid on one of the one or more additional frequency bands for the downlink; and determining that the one or more transmissions are associated with the serving cell.

[0249] Clause 8: The method according to any combination of Clauses 5 to 7, wherein the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and the first synchronization grid, and a second RACH configuration associated with the one or more frequency bands and the second synchronization grid.

[0250] Clause 9: The method according to Clause 8, wherein the one or more transmissions on the first synchronization grid include one or more SSBs, the method further comprising: in response to the one or more SSBs received on the first synchronization grid, transmitting a RACH request message for the serving cell based on the second RACH configuration.

[0251] Clause 10: The method according to any combination of Clauses 8 to 9, wherein the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

[0252] Clause 11: The method according to any combination of Clauses 5 to 10, wherein the initial SIB indicates a first SS burst location set associated with the serving cell and a second SS burst location set associated with the one or more additional frequency bands.

[0253] Clause 12: The method according to Clause 11, wherein the initial SIB indicates the second SS burst location set from the first SS burst location set.

[0254] Clause 13: The method according to Clause 11, wherein the initial SIB indicates the first SS burst location set via a first bitmap and the second SS burst location set via a second bitmap.

[0255] Clause 14: The method according to any combination of Clauses 8 to 13, wherein the first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

[0256] Clause 15: The method according to any combination of Clauses 8 to 14, wherein the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

[0257] Clause 16: The method according to any combination of Clauses 8 to 15, wherein the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

[0258] Clause 17: The method according to any combination of Clauses 8 to 16, wherein the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

[0259] Clause 18: The method according to any combination of Clauses 8 to 18, wherein the initial SIB indication is used to determine whether data transmission is to be performed using the one or more frequency bands or using the one or more additional frequency bands.

[0260] Clause 19: The method described in Clause 18, wherein the information includes a signal quality measurement threshold.

[0261] Clause 20: A method for wireless communication by a network entity, the method comprising: configuring a repeater associated with the network entity to: convert transmissions from the network entity to a first frequency band and a first synchronization grid, and forward the converted transmissions to a user equipment (UE); and outputting a synchronization signal (SS) burst on a second frequency band using a second synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET).

[0262] Clause 21: The method according to Clause 20, wherein the first frequency band and the first synchronization grid are associated with the access link between the UE and the repeater.

[0263] Clause 22: The method described under any combination of Clauses 20 to 21, wherein the first frequency band and the second frequency band are within the same frequency range (FR) in the licensed spectrum.

[0264] Clause 23: The method according to any combination of Clauses 20 to 22, further comprising: in the CORESET indicated in the MIB, transmitting a Physical Downlink Control Channel (PDCCH) on the second frequency band with the second synchronization grid, the PDCCH transmission scheduling the transmission of a Physical Downlink Shared Channel (PDSCH) carrying an Initial System Information Block (SIB).

[0265] Clause 24: The method according to Clause 23, wherein: the initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and the additional frequency bands are associated with the access link between the UE and the repeater.

[0266] Clause 25: The method according to Clause 24 further comprises: obtaining one or more uplink transmissions from the UE via the repeater on one of the one or more additional frequency bands for uplink.

[0267] Clause 26: The method described in any combination of Clauses 24 to 25 further includes: outputting one or more transmissions on one of the one or more additional frequency bands for the downlink.

[0268] Clause 27: The method according to Clause 24, wherein the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and associated with the first synchronization grid and a second RACH configuration associated with the one or more frequency bands and associated with the second synchronization grid.

[0269] Clause 28: The method according to Clause 27 further includes: obtaining from the UE a RACH request message in response to one or more additional SSBs transmitted on the second synchronization grid, based on the second RACH configuration.

[0270] Clause 29: The method according to any combination of Clauses 27 to 28, wherein the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

[0271] Clause 30: The method according to any combination of Clauses 24 to 29, wherein the initial SIB indicates a first SS burst location set associated with the serving cell and a second SS burst location set associated with the one or more additional frequency bands.

[0272] Clause 31: The method according to Clause 30, wherein the initial SIB indicates the second SS burst location set from the first SS burst location set.

[0273] Clause 32: The method according to Clause 30, wherein the initial SIB indicates the first SS burst location set via a first bitmap and the second SS burst location set via a second bitmap.

[0274] Clause 33: The method according to any combination of Clauses 27 to 32, wherein the first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

[0275] Clause 34: The method according to any combination of Clauses 27 to 33, wherein the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

[0276] Clause 35: The method according to any combination of Clauses 27 to 34, wherein the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

[0277] Clause 36: The method according to any combination of Clauses 27 to 35, wherein the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

[0278] Clause 37: The method according to any combination of Clauses 27 to 36, wherein the initial SIB indication is used to determine whether data transmission is to be performed using the one or more frequency bands or using the one or more additional frequency bands.

[0279] Clause 38: The method described in Clause 37, wherein the information includes a signal quality measurement threshold.

[0280] Clause 39: The method described in any combination of Clauses 24 to 38, wherein the configuration is performed via a third frequency band associated with the control link between the network entity and the repeater.

[0281] Clause 40: A method for wireless communication by a repeater, the method comprising: receiving a synchronization signal (SS) burst from a network entity in a first frequency band with a first synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET); and forwarding the SS burst to a user equipment (UE) in a second frequency band with a second synchronization grid.

[0282] Clause 41: The method according to Clause 40 further includes: receiving signaling from a network entity, the signaling configuring the repeater to: convert transmissions from the network entity to the second frequency band and the second synchronization grid, and forward the converted transmissions to the UE.

[0283] Clause 42: The method according to Clause 41, wherein the configuration is performed via a third frequency band associated with the control link between the network entity and the repeater.

[0284] Clause 43: The method according to any combination of Clauses 40 to 42, wherein the second frequency band and the second synchronization grid are associated with the access link between the UE and the repeater.

[0285] Clause 44: The method described under any combination of Clauses 40 to 43, wherein the first frequency band and the second frequency band are within the same frequency range (FR) in the licensed spectrum.

[0286] Clause 45: The method according to any combination of Clauses 40 to 44, further comprising: receiving, in the CORESET indicated in the MIB, a Physical Downlink Control Channel (PDCCH) transmission from the network entity on the first frequency band with the first synchronization grid, the PDCCH transmission scheduling a Physical Downlink Shared Channel (PDSCH) transmission carrying an Initial System Information Block (SIB); and forwarding the PDCCH transmission to the UE on the second frequency band with the second synchronization grid.

[0287] Clause 46: The method according to Clause 45, wherein: the initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and the additional frequency bands are associated with the access link between the UE and the repeater.

[0288] Clause 47: The method according to Clause 46 further comprises: receiving from the UE one or more uplink transmissions for the network entity via one of the one or more additional frequency bands for uplink; and forwarding the one or more uplink transmissions to the network entity on the first frequency band.

[0289] Clause 48: The method according to any combination of Clauses 46 to 49, the method further comprising: receiving one or more transmissions from the network entity on the first frequency band; and forwarding the one or more transmissions to the UE in the first synchronization grid on one of the one or more additional frequency bands for downlink.

[0290] Clause 49: The method according to any combination of Clauses 45 to 48, wherein the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and the first synchronization grid, and a second RACH configuration associated with the one or more frequency bands and the second synchronization grid.

[0291] Clause 50: The method according to Clause 49, wherein the one or more transmissions on the first synchronization grid include one or more SSBs, the method further comprising: receiving a RACH request message for the network entity in response to the one or more SSBs on the first synchronization grid based on the second RACH configuration.

[0292] Clause 51: The method according to any combination of Clauses 49 to 50, wherein the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

[0293] Clause 52: The method according to any combination of Clauses 49 to 51, wherein the initial SIB indicates a first set of SS burst locations associated with the network entity and a second set of SS burst locations associated with the one or more additional frequency bands.

[0294] Clause 53: The method according to Clause 52, wherein the initial SIB indicates the second SS burst location set from the first SS burst location set.

[0295] Clause 54: The method according to Clause 52, wherein the initial SIB indicates the first SS burst location set via a first bitmap and the second SS burst location set via a second bitmap.

[0296] Clause 55: The method according to Clause 49, wherein the first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

[0297] Clause 56: The method according to any combination of Clauses 49 to 55, wherein the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

[0298] Clause 57: The method according to any combination of Clauses 49 to 56, wherein the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

[0299] Clause 58: The method according to any combination of Clauses 49 to 57, wherein the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

[0300] Clause 59: The method according to any combination of Clauses 49 to 58, wherein the initial SIB indication is used to determine whether data transmission is to be performed using the one or more frequency bands or using the one or more additional frequency bands.

[0301] Clause 60: The method according to Clause 59, wherein the information includes a signal quality measurement threshold.

[0302] Clause 61: An apparatus comprising: at least one memory including executable instructions; and at least one processor configured to execute the executable instructions and cause the apparatus to perform a method according to any one of Clauses 1 to 60.

[0303] Clause 62: An apparatus comprising components for performing the method according to any one of Clauses 1 to 60.

[0304] Clause 63: A non-transitory computer-readable medium comprising executable instructions that, when executed by at least one processor of a device, cause the device to perform the method according to any one of Clauses 1 to 60.

[0305] Clause 64: A computer program product embodied on a computer-readable storage medium, the computer-readable storage medium including code for performing the method according to any one of Clauses 1 to 60.

[0306] Additional Notes

[0307] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein do not limit 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, the function and arrangement of the elements discussed may be changed without departing from the scope of this disclosure. Various processes or components may be omitted, substituted, or added as appropriate in various examples. For example, the described methods may be performed in a different order than described, and various actions may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined in others. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Moreover, the scope of this disclosure is intended to cover such apparatuses or methods practiced using other structures, functionalities, or structures and functionalities that complement or replace the various aspects of this disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.

[0308] The various exemplary logic blocks, modules, and circuits described in this disclosure can be implemented or executed using a general-purpose processor, graphics processing unit (GPU), neural processing unit (NPU), digital signal processor (DSP), ASIC, field-programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic unit, discrete hardware component, or any combination thereof designed to perform the functions described herein. While the general-purpose processor may be a microprocessor, in alternative embodiments, 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, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, a system-on-a-chip (SoC), or any other such configuration.

[0309] As used herein, "processor," "at least one processor," or "one or more processors" generally refers to a single processor configured to perform one or more operations, or multiple processors configured to collectively perform one or more operations. In the case of multiple processors, the execution of one or more operations may be divided among different processors, but one processor may perform multiple operations, and multiple processors may collectively perform a single operation. Similarly, "memory," "at least one memory," or "one or more memory" generally refers to a single memory configured to store data and / or instructions, or multiple memories configured to collectively store data and / or instructions.

[0310] REPMF

[0311] As used in this article, the phrase “at least one of” in a list of items refers to any combination of those items, including a single member. 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, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0312] As used herein, the term "determine" encompasses a wide variety of actions. For example, "determine" can include calculation, operation, processing, deduction, investigation, lookup (e.g., searching in a table, database, or other data structure), assertion, etc. Additionally, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), etc. Furthermore, "determine" can include parsing, selecting, picking, building, etc.

[0313] The methods disclosed herein include one or more actions for implementing the methods. These actions may be interchanged 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 a particular action may be modified without departing from the scope of the claims. Furthermore, the various operations of the methods described above may be performed by any suitable component capable of performing the corresponding function. This component may include various hardware and / or software components and / or modules, including but not limited to circuits, application-specific integrated circuits (ASICs), or processors. Software should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms.

[0314] The following claims are not intended to be limited to the aspects shown herein, but should be given the full scope consistent with the language of the claims. Within the claims, unless specifically stated otherwise, reference to the singular form of an element is not intended to mean “one and only one,” but rather “one or more.” Unless specifically stated otherwise, the term “some” means one or more. No element of any claim shall be interpreted in accordance with 35 USC §112(f) unless that element is explicitly stated using the phrase “for a component of.” All structural and functional equivalents of the elements throughout the various aspects described herein that are known to a person of ordinary skill in the art, or will later be known, are expressly incorporated herein by reference and are intended to be covered by the claims. Furthermore, nothing disclosed herein is intended to be offered to the public, whether or not such disclosure is explicitly recited in the claims.

Claims

1. A user equipment (UE), the user equipment (UE) comprising: Memory, the memory storing computer-executable code; and At least one processor, coupled to the memory, configured to execute the computer-executable code and cause the UE to: A synchronization signal (SS) burst is received from a repeater in a first frequency band with a first synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET). as well as The association of the SS burst with a serving cell is determined based on the first synchronization grid, wherein the serving cell uses a second synchronization grid associated with a second frequency band.

2. The UE of claim 1, wherein the first frequency band and the first synchronization grid are associated with an access link between the UE and the repeater.

3. The UE of claim 1, wherein the first frequency band and the second frequency band are within the same frequency range (FR) in the licensed spectrum.

4. The UE of claim 1, wherein the at least one processor is further configured such that the UE: in the CORESET indicated in the MIB, receives physical downlink control channel (PDCCH) transmission from the repeater on the first frequency band with the first synchronization grid, the PDCCH transmission scheduling physical downlink shared channel (PDSCH) transmission carrying initial system information block (SIB).

5. The UE according to claim 4, wherein: The initial SIB indicates one or more frequency bands for the downlink, one or more frequency bands for the uplink, and at least one of the following: one or more additional frequency bands for the uplink or one or more additional frequency bands for the downlink; and The additional frequency band is associated with the access link between the UE and the repeater.

6. The UE of claim 5, wherein the at least one processor is further configured to cause the UE to: transmit one or more uplink transmissions to the serving cell via one of the one or more additional frequency bands for uplink.

7. The UE of claim 5, wherein the at least one processor is further configured such that the UE: Receive one or more transmissions from the repeater on the first synchronization grid in one of the one or more additional frequency bands used for the downlink; and Determine that the one or more transmissions are associated with the serving cell.

8. The UE of claim 7, wherein the initial SIB indicates a first random access channel (RACH) configuration associated with the one or more additional frequency bands and the first synchronization grid, and a second RACH configuration associated with the one or more frequency bands and the second synchronization grid.

9. The UE of claim 8, wherein the one or more transmissions on the first synchronization grid include one or more SSBs, and further comprises: In response to the one or more SSBs received on the first synchronization grid, a RACH request message is transmitted for the serving cell based on the second RACH configuration.

10. The UE of claim 8, wherein the first RACH configuration indicates a first reference signal received power (RSRP) detection threshold associated with the first synchronization grid, and the second RACH configuration indicates a second RSRP detection threshold associated with the second synchronization grid.

11. The UE of claim 5, wherein the initial SIB indicates a first SS burst location set associated with the serving cell and a second SS burst location set associated with the one or more additional frequency bands.

12. The UE of claim 11, wherein the initial SIB indicates the second SS burst location set from the first SS burst location set.

13. The UE of claim 11, wherein the initial SIB indicates the first SS burst location set via a first bitmap and the second SS burst location set via a second bitmap.

14. The UE of claim 8, wherein the first RACH configuration indicates a first RACH resource associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH resource associated with the one or more frequency bands.

15. The UE of claim 8, wherein the first RACH configuration indicates a first RACH format associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH format associated with the one or more frequency bands.

16. The UE of claim 8, wherein the first RACH configuration indicates the maximum transmit power of the first RACH preamble associated with the one or more additional frequency bands, and the second RACH configuration indicates the maximum transmit power of the second RACH preamble associated with the one or more frequency bands.

17. The UE of claim 8, wherein the first RACH configuration indicates a first RACH response time window associated with the one or more additional frequency bands, and the second RACH configuration indicates a second RACH response time window associated with the one or more frequency bands.

18. The UE of claim 8, wherein the initial SIB indication is used to determine whether data transmission is performed using the one or more frequency bands or using the one or more additional frequency bands.

19. A network entity, the network entity comprising: Memory, the memory storing computer-executable code; and At least one processor, coupled to the memory, configured to execute the computer-executable code and cause the network entity to: The repeater associated with the network entity is configured to convert downlink transmissions from the first network entity to a first frequency band and a first synchronization grid; and A synchronization signal (SS) burst is output using a second synchronization grid on a second frequency band, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating the initial control resource set (CORESET).

20. A repeater, comprising: Memory, the memory storing computer-executable code; and At least one processor, coupled to the memory, configured to execute the computer-executable code and cause the repeater to: A synchronization signal (SS) burst is received from a network entity in a first frequency band with a first synchronization grid, wherein the SS burst includes an SS block (SSB) and a physical broadcast channel (PBCH) carrying a master information block (MIB) indicating an initial control resource set (CORESET). as well as The SS burst is forwarded to the user equipment (UE) on the second frequency band using the second synchronization grid.

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