Virtual cell configuration and operation

Abstract

Certain aspects of the present disclosure provide techniques for configuring and operating virtual cells, including virtual cells that operate in non-contiguous subbands. A method that can be performed by a user equipment (UE) includes receiving signaling indicating a plurality of non-contiguous subbands configured for a virtual cell, and communicating in the virtual cell via the non-contiguous subbands.

Description

Cross-references to related applications

[0001] This application claims priority to U.S. Patent Application No. 18 / 499,935, filed November 1, 2023, which has been assigned to the assignee of this application and is expressly incorporated herein by reference in its entirety, as if fully set forth below and for all applicable purposes. Technical Field

[0002] Various aspects of this disclosure relate to wireless communications, and more specifically, to techniques for configuring and operating virtual cells, including virtual cells operating in non-contiguous subbands. Background Technology

[0003] 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.

[0004] 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

[0005] One aspect provides a method for wireless communication by a user equipment (UE). The method includes: receiving signaling indicating a plurality of discontinuous subbands configured for a virtual cell; and communicating in the virtual cell via the discontinuous subbands.

[0006] On the other hand, a method for wireless communication by a network entity is provided. The method includes: configuring multiple non-contiguous subbands for downlink (DL) or uplink (UL) operation of a virtual cell; and communicating the configuration of the virtual cell.

[0007] Other aspects provide: an apparatus capable of operating to perform one or more of the methods described herein and / or those elsewhere in the document, configured to perform one or more of the methods described herein and / or those elsewhere in the document, 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, cause the apparatus to perform the methods described herein and those elsewhere in the document; 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.

[0008] For illustrative purposes, the following description and figures illustrate certain features. Attached Figure Description

[0009] The accompanying drawings depict certain features of the various aspects described herein and should not be considered as limiting the scope of this disclosure.

[0010] Figure 1 An example wireless communication network is depicted.

[0011] Figure 2 An example decomposed base station architecture is described.

[0012] Figure 3 Various aspects of the example base station and example user equipment are described.

[0013] Figure 4A , Figure 4B , Figure 4C and Figure 4D Various example aspects of data structures used in wireless communication networks are described.

[0014] Figure 5 An example of aggregating discontinuous frequency bands is depicted.

[0015] Figure 6 An example of a discontinuous recultivated spectrum is depicted.

[0016] Figure 7 This describes a portion of the channel bandwidth table for NR communication systems.

[0017] Figure 8 An example of the use of RF spectrum is depicted.

[0018] Figure 9 The process flow for communication in a network is described.

[0019] Figure 10 An example of non-contiguous subbands configured for a virtual cell is depicted.

[0020] Figure 11 An example of using PDCCH to schedule other transmissions in a virtual cell using non-contiguous subbands is described.

[0021] Figure 12 A method for wireless communication is described.

[0022] Figure 13 A method for wireless communication is described.

[0023] Figure 14 Various aspects of the example communication device are described.

[0024] Figure 15 Various aspects of the example communication device are described. Detailed Implementation

[0025] Various aspects of this disclosure provide apparatus, methods, processing systems, and computer-readable media for configuring and operating virtual cells, including virtual cells operating in non-contiguous subbands.

[0026] As used herein, a "subband" refers to a group of subcarriers, each separated from the next subcarrier by a subcarrier spacing (SCS) in frequency. As used herein, a "non-contiguous subband" refers to a subband, each separated from another subband by a gap (greater than the SCS) in frequency, where the gap is not used for transmission on any of the subbands. As used herein, a "virtual cell" refers to a logical entity in which one or more network entities use a (shared) Virtual Cell Identifier (VCID) for transmission and / or reception, rather than each network entity using its Physical Cell Identifier (PCI). As used herein, "refarmed spectrum" and "refarmed resources" refer to frequency resources that are assigned at one time for use with a first Radio Access Technology (RAT) and at a later time for (re)use with a second RAT.

[0027] Some wireless communication systems, such as sixth-generation (6G) cellular systems, may not be able to operate on contiguous frequency spectrum with good coverage in all areas upon initial implementation. In some cases, this spectrum will be unavailable due to the use of contiguous frequency spectrum by 5G cellular systems or other systems. Spectrum already assigned to communication systems using Radio Access Technology (RAT) (also referred to herein as frequency resources and RF spectrum) may be reassigned or refarmed to other communication systems using a new RAT. Refarmed spectrum may have a narrow bandwidth (BW) and be frequency-dispersed. Such refarmed spectrum may be challenging or impossible to utilize in terms of dynamic spectrum sharing or carrier aggregation (CA).

[0028] According to various aspects of this disclosure, techniques are provided for operating and configuring virtual cells for sixth-generation (6G) and other RATs, including the use of non-contiguous subbands. As described herein, virtual cells (e.g., operated by 6G cellular systems and other wireless communication systems) can be configured with non-contiguous subbands. The non-contiguous subbands configured for a virtual cell may belong to the same frequency range, the maximum gap between two adjacent subbands may be defined, and the maximum aggregate bandwidth across all configured subbands may also be defined.

[0029] Using virtual cells with non-contiguous subbands can overcome limitations on spectrum refarming and CA, improve the utilization efficiency of segmented or refarmed resources, and enhance the coexistence of different use cases.

[0030] An introduction to wireless communication networks 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.

[0031] Figure 1 An example of a wireless communication network 100 in which the aspects described herein can be implemented is depicted.

[0032] 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.

[0033] 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.

[0034] Figure 1 Various example UEs 104 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.

[0035] BS 102 communicates wirelessly with UE 104 via communication link 120 (e.g., transmitting or receiving signals to or from UE 104). Communication link 120 between BS 102 and UE 104 may include uplink (UL) (also known as reverse link) transmission from UE 104 to BS 102 and / or downlink (DL) (also known 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.

[0036] BS 102 may typically include: NodeB, enhanced NodeB (eNB), next-generation enhanced NodeB (ng-eNB), next-generation NodeB (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.

[0037] Although BS 102 is described as a single communication device in various aspects, it can be implemented in various 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.

[0038] 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.

[0039] 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.

[0040] 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).

[0041] 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 BS 180 (180) can utilize beamforming 182 with the UE 104 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 can 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.

[0042] 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.

[0043] Some UEs 104 may use device-to-device (D2D) communication links 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).

[0044] 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.

[0045] 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.

[0046] 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, can be used to authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and / or can be used to schedule MBMS transmissions. The MBMS gateway 168 can be used to distribute MBMS services to BS 102 belonging to a Broadcast-Specific Service Single Frequency Network (MBSFN) area, and / or can be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0047] 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 can communicate with Unified Data Management (UDM) 196.

[0048] 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.

[0049] Internet Protocol (IP) packets are transmitted via UPF 195, which connects to IP service 197 and provides the UE with 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.

[0050] 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.

[0051] 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 implementations, UE 104 may be served simultaneously by multiple RUs 240.

[0052] 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 a 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.

[0053] 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 divided 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.

[0054] DU 230 may correspond to a logic 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.

[0055] Lower-layer functionality can be implemented by one or more RU 240s. In some deployments, an RU240 controlled by a 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 enables the implementation of the DU 230 and CU 210 in cloud-based RAN architectures (such as vRAN architectures).

[0056] 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 the 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.

[0057] 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 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.

[0058] 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 may 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 employ 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).

[0059] Figure 3 Various aspects of examples BS 102 and UE 104 are described.

[0060] Generally, BS 102 includes various processors (e.g., 320, 330, 338, and 340), antennas 334a-334t (collectively referred to as 334), transceivers 332a-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 functions described herein related to wireless communication.

[0061] Generally, UE 104 includes various processors (e.g., 358, 364, 366, and 380), antennas 352a-352r (collectively referred to as 352), transceivers 354a-354r (collectively referred to as 354) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., retrieved from data source 362) and the wireless reception of data (e.g., provided 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.

[0062] 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).

[0063] The transmitter processor 320 can process (e.g., encode and symbol map) data and control information 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)).

[0064] 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-332t. Each modulator in transceivers 332a-332t can process its 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-332t can be transmitted via antennas 334a-334t respectively.

[0065] To receive downlink transmissions, UE 104 includes antennas 352a-352r that receive downlink signals from BS 102 and provide the received signals to demodulators (DEMODs) in transceivers 354a-354r respectively. Each demodulator in transceivers 354a-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.

[0066] 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 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide the decoded data for UE 104 to data sink 360, and provide the decoded control information to controller / processor 380.

[0067] 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-354r (e.g., for SC-FDM), and transmitted to BS 102.

[0068] At BS 102, uplink signals from UE 104 can be received by antennas 334a-t, processed by demodulators in transceivers 332a-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.

[0069] Memory 342 and memory 382 can store data and program code for BS 102 and UE 104, respectively.

[0070] Scheduler 344 can schedule UE to transmit data on the downlink and / or uplink.

[0071] 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, transceiver 332a-332t, antenna 334a-334t, and / or other aspects described herein. Similarly, "receiving" can refer to various mechanisms that acquire data, such as from antenna 334a-334t, transceiver 332a-332t, RX MIMO detector 336, controller / processor 340, receive processor 338, scheduler 344, memory 342, and / or other aspects described herein.

[0072] 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, transceiver 354a-354t, antenna 352a-352t, and / or other aspects described herein. Similarly, “receiving” can refer to various mechanisms that acquire data, such as from antenna 352a-352t, transceiver 354a-354t, RX MIMO detector 356, controller / processor 380, receive processor 358, memory 382, ​​and / or other aspects described herein.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] Wireless communication frame structures can be Frequency Division Duplex (FDD), where subframes within a specific set of subcarriers are dedicated to DL or UL. Wireless communication frame structures can also be Time Division Duplex (TDD), where subframes within a specific set of subcarriers are dedicated to both DL and UL.

[0078] 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 via the received Slot Format Indicator (SFI) (dynamically configured via DL Control Information (DCI) or semi-statically / statically configured 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.

[0079] 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.

[0080] 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.

[0081] 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).

[0082] 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.

[0083] 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.

[0084] The secondary synchronization signal (SSS) can be located within symbol 4 of a specific subframe of a frame. The SSS is used by the UE to determine the physical layer cell identification group number and radio frame timing.

[0085] 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 number of RBs and the System Frame Number (SFN) in the system bandwidth. The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information (such as System Information Block (SIB)) not transmitted via the PBCH, and / or paging messages.

[0086] 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.

[0087] 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.

[0088] QCL ports and TCI state In many cases, it is important for the UE to know what assumptions it can make about the channel corresponding to different transmissions. For example, the UE may need to know which reference signals it can use to estimate the channel in order to decode the transmitted signal (e.g., PDCCH or PDSCH). It is also important for the UE to be able to report relevant Channel State Information (CSI) to the BS (e.g., gNB) for scheduling, link adaptation, and / or beam management purposes. In NR, the concepts of Quasi-Co-location (QCL) and Transmit Configuration Indicator (TCI) states are used to convey information about these assumptions.

[0089] QCL assumptions are generally defined in the form of channel attributes. According to 3GPP TS 38.214, "two antenna ports are said to be quasi-co-located if the attributes of a channel carrying symbols on one antenna port can be inferred from the attributes of a channel carrying symbols on another antenna port." These different reference signals can be considered quasi-co-located ("QCL") if the receiver (e.g., UE) can apply the channel attributes determined by detecting a first reference signal to aid in the detection of a second reference signal. TCI states generally include configurations such as QCL relationships (e.g., between DL RS and PDSCH DMRS ports in a CSI-RS set).

[0090] In some cases, the UE can be configured with up to M TCI Status. M TCI The configuration of the state can be performed via higher-layer signaling, and the UE can be signaled to decode the PDSCH based on the detected PDCCH containing a DCI indicating one of the TCI states. Each configured TCI state may include a set of RS indicating different QCL assumptions between certain source and target signals. TCI-RS-SetConfig .

[0091] For example, TCI-RS-SetConfig The source RS can be indicated in the top block and can be associated with the target signal indicated in the bottom block. In this context, the target signal generally refers to a signal whose channel attributes can be inferred by measuring those channel attributes against the associated source signal. As mentioned above, the UE can use the source RS to determine various channel parameters depending on the associated QCL type and use those various channel attributes (determined based on the source RS) to process the target signal. The target RS does not necessarily need to be the DMRS of the PDSCH. Instead, the target RS can be any other RS ​​(e.g., PUSCH DMRS, CSIRS, TRS, and SRS).

[0092] Each TCI-RS-SetConfig It can contain various parameters. For example, these parameters can configure the quasi-co-addressable relationship between reference signals in the RS set and the DM-RS port group of the PDSCH. The RS set contains references to one or two DL RSs and parameters from higher layers. QCL-Type Configured quasi-co-address type (QCL-type) associated with each DL RS.

[0093] In the case of two DL RSs, the QCL type can be arranged in various ways. For example, the QCL types can be different, whether referencing the same DL RS or different DL RSs. In the illustrated example, the SSB is associated with type C QCL for P-TRS, while the CSI-RS (CSIRS-BM) for beam management is associated with type D QCL.

[0094] In some scenarios, QCL information and / or type may depend on other information or a function of other information. For example, the QCL type indicated to the UE may be based on higher-level parameters. QCL-Type And it can take one of the following types or a combination of the following types: QCL-Type A: {Doppler frequency shift, Doppler spread, average delay, delay spread} QCL-Type B: {Doppler frequency shift, Doppler spread} QCL-Type C: {Average Delay, Doppler Shift}, and QCL - Type D: {Space Rx parameter}, Spatial QCL assumptions (QCL-Type D) can be used to help the UE select analog Rx beams (e.g., during beam management procedures). For example, an SSB resource indicator can indicate that the same beam used for a previous reference signal should be used for subsequent transmissions.

[0095] The initial CORESET in the NR (e.g., CORESET ID 0 or simply CORESET#0) can be identified during the initial access process performed by the UE (e.g., via a field in the MIB). The Control Resource Set Information Element (CORESET IE), transmitted via Radio Resource Control (RRC) signaling, can convey information about the CORESET configured for the UE. The CORESET IE typically includes the CORESET ID, an indication of the frequency domain resources (e.g., the number of RBs) assigned to the CORESET, the continuous time duration of the CORESET in symbol count, and the Transmit Configuration Indicator (TCI) status.

[0096] As mentioned above, a subset of TCI states provides a QCL relationship between DL RSs and PDCCH demodulation RS (DMRS) ports in a set of RSs (e.g., a TCI set). Specific TCI states for a given UE (e.g., for unicast PDCCH) can be delivered to the UE by a Media Access Control (MAC) control element (MAC-CE). Specific TCI states are generally selected from the set of TCI states delivered by the CORESET IE, where the initial CORESET (CORESET#0) is typically configured via the MIB.

[0097] Search space information can also be provided via RRC signaling. For example, a search space IE defines how and where to search for another RRC IE for a given CORESET's PDCCH candidates. Each search space is associated with a CORESET. Search space IEs are identified by search space IDs configured for a CORESET. In one aspect, the search space ID associated with CORESET #0 is search space ID #0. Search spaces are typically configured via PBCH (MIB).

[0098] Parties involved in the configuration and operation of virtual cells, including those operating in non-contiguous subbands. noodle Some wireless communication systems, such as sixth-generation (6G) cellular systems, may not be able to operate on a continuous frequency spectrum with good coverage in all areas when first implemented. In some cases, this spectrum will be unavailable due to the use of continuous frequency spectrum by 5G cellular systems or other systems.

[0099] Figure 5 An example of aggregating discontinuous frequency bands 502, 504, and 506 is depicted to theoretically achieve a peak throughput of 100Gbps to a UE 510, which can be relative to Figure 1 and Figure 3 Examples of UE 104 or another type of wireless communication device are depicted and described. As illustrated, a wireless communication system (e.g., a 6G system) may aggregate a 400MHz band 502, a 1400MHz band 504, and a 1000MHz band 506 to achieve a throughput of 105Gbps to UE 510.

[0100] In some wireless communication systems (e.g., LTE or 5G systems), for a cell site with one or more component carriers (CCs), the system bandwidth (BW) of each CC spans a set of frequency-contiguous resource blocks. The lower bound of the CC size (in BW) is the minimum channel bandwidth (CBW) of the UE served by the wireless communication system. The minimum CBW of the UE depends on the radio access technology (RAT) and is hard-decoded for each operating band. For example, the minimum CBW for an LTE UE is 1.4 MHz, while the minimum CBW for an NR UE is 5 MHz, 10 MHz, or 20 MHz, depending on the SCS used and the frequency band of the system.

[0101] In some aspects of this disclosure, spectrum already assigned to a communication system using a RAT (also referred to herein as frequency resources and RF spectrum) may be reassigned or refarmed to other communication systems using a new RAT. Refarmed spectrum may have a narrow bandwidth (BW) and be frequency-dispersed. Such refarmed spectrum may be challenging or impossible to utilize in terms of dynamic spectrum sharing or CA. For example, one or more refarmed CCs with a BW of less than 5 MHz will not be suitable for stand-alone (SA) deployments of NR / 5G communication systems without spectrum aggregation with other CCs to meet minimum CBW requirements.

[0102] Figure 6 Examples of discontinuous refarmed spectrum according to various aspects of this disclosure are depicted. As illustrated, a set of two 3-MHz bandwidth blocks 602 and 604 and four 1.4-MHz bandwidth blocks 610, 612, 614 and 616 can be refarmed from a communication system operating using an LTE RAT for use by another communication system using a different RAT.

[0103] Figure 7 A portion of the channel bandwidth table for an NR communication system is depicted. As illustrated, the possible UE channel bandwidth varies with both SCS and frequency band.

[0104] Figure 8 Example uses of the RF spectrum according to various aspects of this disclosure are depicted. Transmitting devices (e.g., UE, BS, or network entity) transmit on a set of active resource blocks 802 within a transmit bandwidth 804, within a channel bandwidth 806. The channel bandwidth also includes guard bands 810 and 812 on each side of the transmit bandwidth 804.

[0105] According to various aspects of this disclosure, techniques for virtual cell operation and configuration for 6G and RAT are provided to overcome limitations on spectrum refarming and CA, improve the utilization efficiency of segmented or refarmed resources, and enhance the coexistence of different use cases.

[0106] Example operations of entities in a communication network Figure 9 A process flow 900 for communication between network entity 902 and user equipment (UE) 904 in a network is described. In some aspects, network entity 902 may be relative to... Figure 1 and Figure 3 The BS 102 depicted and described, or relative to Figure 2 Examples of decomposed base stations are depicted and described. Similarly, UE 904 can be relative to... Figure 1 and Figure 3The example of UE 104 depicted and described herein. However, in other respects, UE 104 may be another type of wireless communication device, and BS 102 may be another type of network entity or network node, such as those described herein.

[0107] At 910, network entity 902 configures two or more non-contiguous subbands for downlink (DL) or uplink (UL) operation of the virtual cell.

[0108] At 912, network entity 902 communicates the configuration of the virtual cell. In some aspects of this disclosure, communicating the virtual cell configuration includes sending the configuration to the UE in system information (SI) or in signaling directed to the UE (e.g., in UE-specific bandwidth portion (BWP) configuration). In some aspects of this disclosure, communicating the configuration includes transmitting the configuration to another network entity via a wired or wireless backhaul link.

[0109] At 914, the UE communicates within the cell via a non-contiguous subband. In various aspects of this disclosure, communication within the cell may include receiving downlink transmissions, transmitting uplink transmissions, transmitting sidelink transmissions, or receiving sidelink transmissions.

[0110] According to various aspects of this disclosure, virtual cells (e.g., operated by 6G cellular systems and other wireless communication systems) may be configured with discontinuous subbands.

[0111] In all aspects of this disclosure, all subbands configured for a virtual cell may belong to the same frequency range. For example, the spectrum resources of a virtual cell cannot be mapped to both frequency range 1 (FR1) and frequency range (FR2).

[0112] According to various aspects of this disclosure, the gap between two adjacent sub-bands can be less than the threshold F. MGAP MHz. Threshold F MGAP It can be pre-configured, meaning it has a certain value before any subband is configured.

[0113] In all aspects of this disclosure, the aggregated BW across all configured subbands can be less than a threshold F. MSUM MHz. Threshold F MSUM It can be pre-configured.

[0114] Figure 10 Examples of non-contiguous subbands configured for a virtual cell according to various aspects of this disclosure are depicted. As illustrated, all subbands 0 to K-1 configured for the virtual cell are less than F. MSUM The aggregated bandwidth is within 1002. Furthermore, as illustrated, the maximum gap between any two adjacent subbands, such as in the subband... k With child belt k The gap between +1 and 1010 is less than F.MGAP .

[0115] According to various aspects of this disclosure, if a physical channel or RS is transmitted or received by a virtual cell across multiple active subbands, the same set of parameters (SCS and CP lengths) and waveforms can be configured for the physical channel or RS on the active subbands.

[0116] In all aspects of this disclosure, the receive time difference (RTD) across active subbands of the DL channel or RS can be less than a threshold T. MRTD T MRTD <T CP / L T CP It is the time duration of the CP associated with the reference and / or maximum SCS supported by the virtual cell, and L It is an integer greater than 1 associated with the reference and / or maximum SCS supported by the virtual cell.

[0117] According to various aspects of this disclosure, the same timing advance (TA) value can be applied to UL channels and / or RS transmitted on active subbands.

[0118] In all aspects of this disclosure, if DL RS (e.g., CSI-RS, TRS, or SSB) is transmitted by a virtual cell on multiple subbands with the same power and / or spatial filtering, the difference in average received power per active subband can be controlled to be less than a threshold P. MRPD dB. Threshold P MRPD It can be pre-configured.

[0119] According to various aspects of this disclosure, if a source RS (e.g., SSB, TRS, or CSI-RS) is not configured on an active subband, the UE may assume that the RS transmitted and / or received on the active subband is quasi-co-located (QCL) with a source RS transmitted by the virtual cell on another active subband. In such respects, the source RS can also be used for L1 and / or L3 measurements of the virtual cell.

[0120] In various aspects of this disclosure, frequency location (e.g., starting PRB index relative to a reference point), BW, and index of each subband configured for the virtual cell can be provided in the SI.

[0121] According to various aspects of this disclosure, when a DL or UL BWP is configured on a virtual cell, the DL or UL BWP may include one or more subbands.

[0122] In various aspects of this disclosure, a bitmap may be sent by a network entity (e.g., in the SI or in UE-specific signaling) to indicate the subbands active in the DL or UL BWP. In these aspects, the length of the bitmap may be equal to the number of subbands configured for the virtual cell.

[0123] According to various aspects of this disclosure, a network entity may indicate the lowest index (I) of the subband activated in a DL BWP or UL BWP. 低 ) and highest index (I 高 ), and has in I 低 with I 高 Subbands of the index between them are also activated in DL BWP or UL BWP.

[0124] In various aspects of this disclosure, a virtual cell can be configured as a primary cell (PCell), a primary cell (PSCell) of a secondary cell group, or a secondary cell (SCell). In some aspects, such a virtual cell can be configured with a HARQ entity.

[0125] According to various aspects of this disclosure, when (e.g., by a network entity) schedules PDSCH for a single transport block (TB) or code block group (CBG), the network entity can transmit PDSCH on a single subband or across multiple subbands in an active DL BWP. When transmitting across multiple subbands, PDSCH can be transmitted with or without frequency hopping.

[0126] In all aspects of this disclosure, when (e.g., by a network entity) PUSCH is scheduled for a single TB or CBG, PUSCH can be transmitted by the UE on a single subband in an active UL BWP or across multiple subbands by frequency hopping.

[0127] According to various aspects of this disclosure, if the virtual cell is a scheduling cell, then CORESET can be configured at least on a single subband within the DL BWP or across multiple subbands in the DL BWP.

[0128] In various aspects of this disclosure, a DCI having a format similar to a Rel18 MC scheduling DCI can be used to support DL and / or UL scheduling across multiple subbands.

[0129] According to various aspects of this disclosure, a DCI may include a Frequency Domain Resource Allocation (FDRA) field applicable to all scheduled subbands. Such a DCI may have lower overhead than a DCI that includes a subband-specific FDRA field.

[0130] According to various aspects of this disclosure, a DCI may include a subband-specific FDRA field. Such a DCI enables more flexible resource management than a DCI with an FDRA field applicable to all subbands.

[0131] In various aspects of this disclosure, random access (RA) resources for contention-based random access (CBRA) and contention-free random access (CFRA) can be configured on a single subband or across multiple non-contiguous subbands.

[0132] According to various aspects of this disclosure, subband-specific offsets can be used for frequency domain indexing of random access opportunities (ROs) and calculation of random access radio network temporary identifiers (RA-RNTIs). Using such subband-specific offsets enables service offloading from other subbands, enhanced coexistence of different use cases, and improved collision avoidance for RA transmissions.

[0133] According to various aspects of this disclosure, RAR and contention resolution messages can be scheduled on a different subband than the DCI for scheduling random access response (RAR) and contention resolution messages. Using a different subband can improve frequency diversity gain and enable service offloading compared to a system that uses the same subband for DCI, RAR, and contention resolution messages.

[0134] Figure 11 Examples of using PDCCH according to various aspects of this disclosure for scheduling other transmissions in a virtual cell using discontinuous subbands are described. As illustrated, PDCCH 1102 in the first subband 1110 can schedule PUSCH, CSI-RS, SRS, or other transmissions on other subbands 1112 or 1114 of the virtual cell. The frequency spectrum of the subband can be refarmed from other uses or newly allocated.

[0135] like Figure 11 As illustrated, a virtual cell can be configured with K > 1 subbands that do not overlap in frequency. The subbands can be indexed in ascending frequency order from 0 to K-1.

[0136] According to various aspects of this disclosure, the BWP configuration in a virtual cell using non-contiguous subbands can be indicated by a bitmap of length = K. The bitmap can be used to indicate the active subbands in the BWP, thereby providing flexibility for scheduling and interference management. For example, the bitmap [0 1 0 1 1 0] indicates that subbands with indices 1, 3, and 4 will be active in the BWP, but subbands 0, 2, and 5 will not be active in the BWP.

[0137] In all aspects of this disclosure, the active subband in BWP will have a starting index (I) 低 Highest index (I) 高 ) consecutive indices. For example, I 低 =1 and I 高 =3 indicates that the subbands with indices 1, 2, and 3 will be active in the BWP or will be active in the BWP, and other subbands will not be active in the BWP or will not be active in the BWP.

[0138] According to various aspects of this disclosure, DL and / or UL BWP can support cross-subband scheduling. In such respect, scheduling and / or configuration information can be provided in the DCI, Media Access Control (MAC) Control Element (CE), and / or via RRC signaling. The FDRA field in the DCI, MAC-CE, or RRC signaling may include an index pointing to a configured or active subband. Based on the virtual cell (or BWP) configuration, RBs or RB groups (RBGs) across configured or active subbands can be indexed sequentially. Therefore, the last RB or RBG index in subband k can be followed by the first RB or RBG index in subband (k+1).

[0139] According to various aspects of this disclosure, a virtual cell can integrate spectrum refarmed from one or more TDD bands and / or one or more FDD bands.

[0140] In all aspects of this disclosure, if the UE supports full-duplex (i.e., the UE is equipped with a duplexer and a separate chain for TX / RX processing), the frequency gap between the active subbands used for transmission and reception is greater than or equal to the threshold duplex gap, the frequency gap between the active subbands is vacant (e.g., not reserved for another RAT), and the active DLBWP and active UL BWP do not share active subbands, then the UE can operate in full-duplex (simultaneous TX and RX) mode on a pair of active BWPs (e.g., DL BWP and UL BWP). In such aspects, the threshold duplex gap may be pre-configured.

[0141] According to various aspects of this disclosure, a UE can be triggered to change from half-duplex mode to full-duplex mode by BWP switching (e.g., a change from the first set of subbands to the second set of subbands in the active BWP).

[0142] In all aspects of this disclosure, whether full-duplex operation is supported may depend on the size of the frequency gap, the amount of guard band required between different RATs, and the capabilities of the UE, if the frequency gap between a pair of active subbands is not empty (e.g., the frequency gap is reserved for use by another RAT).

[0143] According to various aspects of this disclosure, on a pair of active BWPs (e.g., DL BWP and UL BWP) configured with complementary D / U split modes (e.g., all DL / UL or interleaved DL / UL) in TDD, the UE can report capabilities for different duplex modes. The UE can report one or more of the following capabilities to the network entity: support for full-duplex, support for type A half-duplex, or support for type B half-duplex. When reporting full-duplex support, the UE is capable of simultaneous transmission and reception (e.g., the UE has separate transmit and receive chains and a duplexer for TX / RX processing). When reporting type A half-duplex support, the UE cannot perform simultaneous transmission and reception and can switch from transmission to reception after a short handover interval, or vice versa (e.g., the UE has a separate local oscillator for transmission and reception, but no duplexer). When reporting type B half-duplex support, the UE cannot perform simultaneous transmission and reception and can switch from transmission to reception after a large handover interval, or vice versa (e.g., the UE has a shared local oscillator for transmission and reception).

[0144] Example Operation Figure 12 It shows the user equipment (UE) (such as Figure 1 and Figure 3 Example of a method 1200 for wireless communication of UE 104.

[0145] Method 1200 begins at step 1205, receiving signaling indicating multiple non-contiguous subbands configured for a virtual cell. In some cases, this step refers to the operation as described in reference... Figure 14 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0146] Then, method 1200 proceeds to step 1210, communicating in the virtual cell via discontinuous subbands. In some cases, this step refers to the operation as described in reference... Figure 14 The circuitry and / or code used for communication described herein, or that can be executed by the circuitry and / or the code.

[0147] In some respects, a non-contiguous subband is part of at least one of the following: the uplink bandwidth portion (BWP) or the downlink BWP configured on a virtual cell.

[0148] In some respects, the configuration of the uplink BWP or downlink BWP includes a bitmap; each bit of the bitmap corresponds to a subband in a non-contiguous subband configured for the virtual cell; the first value of each bit indicates that the corresponding subband is configured for the BWP; and the second value of each bit indicates that the corresponding subband is not configured for the BWP.

[0149] In some respects, the configuration of the uplink BWP or downlink BWP includes a first indication for the first subband and a second indication for the second subband; and the first subband, the second subband, and all subbands having indices between the first index of the first subband and the second index of the second subband are configured for the BWP.

[0150] In some respects, signaling includes system information (SI), which indicates the location, bandwidth, and index of subbands configured for the virtual cell on the downlink, uplink, or both downlink and uplink.

[0151] In some respects, communication in a virtual cell includes receiving downlink control information (DCI) that includes a frequency domain resource allocation (FDRA) field, wherein the FDRA field indicates one or more frequency allocations in multiple non-contiguous subbands for communication to or from the UE.

[0152] In some respects, communication in a virtual cell includes receiving downlink control information (DCI) that includes multiple frequency domain resource allocation (FDRA) fields, wherein each FDRA field indicates one or more frequency allocations in a corresponding subband of multiple non-contiguous subbands for communication to or from the UE.

[0153] In some respects, communication in a virtual cell includes: transmitting a Physical Random Access Channel (PRACH) configured for a contention-based or contention-free random access procedure on a first subband of a plurality of non-contiguous subbands; and receiving a Random Access Response (RAR) based on a Random Access Radio Network Temporary Identifier (RA-RNTI), a Message B Radio Network Temporary Identifier (msgB-RNTI), or a Cell Radio Network Temporary Identifier (C-RNTI) determined according to the PRACH transmission in the first subband.

[0154] In some aspects, receiving a RAR includes: receiving downlink control information (DCI) addressed to RA-RNTI, msgB-RNTI, or C-RNTI on a second subband among multiple non-contiguous subbands; and receiving a transport block of the RAR mapped to the downlink data channel on a third subband indicated by the DCI among multiple non-contiguous subbands.

[0155] In some aspects, method 1200 also includes sending uplink transmissions based on the timing advance command, provisional C-RNTI (TC-RNTI), and uplink permission in the RAR. In some cases, this step refers to the operation as described in reference... Figure 14 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0156] In some aspects, method 1200 further includes receiving downlink control information (DCI) addressed to TC-RNTI or C-RNTI on a second subband of a plurality of non-contiguous subbands. In some cases, this step refers to the operation as described in reference Figure 14 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0157] In some aspects, method 1200 further includes receiving a contention resolution message on a third or fourth subband indicated by the DCI among multiple non-contiguous subbands. In some cases, this step refers to the operation as described in reference... Figure 14 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0158] In some aspects, communication in a virtual cell includes: receiving a reference signal (RS) on a first subband of a plurality of non-contiguous subbands; receiving a source RS on a second subband of a plurality of non-contiguous subbands; and measuring the RS on the first subband based on the quasi-co-addressing (QCL) of the RS on the first subband and the source RS on the second subband.

[0159] In some aspects, method 1200 also includes receiving DL signals from a network entity via one or more first subbands of the active downlink (DL) bandwidth portion (BWP) of the virtual cell. In some cases, this step refers to the operation as described in reference... Figure 14 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0160] In some aspects, method 1200 further includes transmitting UL signals to a network entity via one or more second subbands of the active uplink (UL) BWP of a virtual cell, wherein the active DL BWP and the active UL BWP include spectrum resources that satisfy at least one of the following: refarmed from an legacy radio access technology (RAT) or shared with a legacy RAT. In some cases, the operation of this step refers to, as referenced Figure 14 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0161] In some respects, spectrum resources fall under at least one of the following categories: frequency division duplex (FDD) band, time division duplex (TDD) band, supplementary DL (SDL) band, or supplementary UL (SUL) band.

[0162] In some aspects, communicating in a virtual cell includes: receiving a configuration of at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; communicating in half-duplex (HD) mode via at least one of the first UL BWP or the first DL BWP; receiving another configuration of at least one of the following: a second UL BWP or a second DL BWP configured on the virtual cell; and communicating in full-duplex (FD) mode via at least one of the second UL BWP or the second DL BWP based on the other configuration, wherein the HD mode or the FD mode satisfies at least one of the following: jointly configured with the corresponding first UL BWP, first DL BWP, second UL BWP or second DL BWP, or separately indicated to the UE after the corresponding first UL BWP configuration, first DL BWP configuration, second UL BWP configuration or second DL BWP configuration.

[0163] In some aspects, communicating in a virtual cell includes: receiving a configuration of at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; and reporting the ability to communicate in full-duplex (FD) mode based on the configuration.

[0164] In some aspects, communicating in a virtual cell includes: receiving a configuration of at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; and reporting the ability to communicate in a first half-duplex (HD) mode or a second HD mode based on the configuration.

[0165] In one aspect, method 1200 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 1200, which includes various components capable of operating, being configured, or adapted to perform the method. The communication device 1400 is described in more detail below.

[0166] It should be noted that Figure 12 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.

[0167] Figure 13 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 1300 for wireless communication using a decomposed base station (discussed in this paper).

[0168] Method 1300 begins with step 1305, configuring multiple non-contiguous subbands for downlink (DL) or uplink (UL) operation of the virtual cell. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code described for configuration, or that can be executed by the circuitry and / or the code.

[0169] Then, method 1300 proceeds to step 1310, conveying the configuration of the virtual cell. In some cases, this step refers to the operation as described in the reference... Figure 15 The circuitry and / or code used for communication described herein, or that can be executed by the circuitry and / or the code.

[0170] In some respects, each of the multiple non-contiguous subbands belongs to the same frequency range as each of the other multiple non-contiguous subbands.

[0171] In some respects, the frequency gap between a subband in a discontinuous subband and the next subband in a discontinuous subband is less than the threshold FMGAP.

[0172] In some respects, the sum of the bandwidths of all non-contiguous subbands is less than the threshold F. MSUM .

[0173] In some aspects, method 1300 also includes transmitting a physical channel or reference signal (RS) on two or more subbands using the same subcarrier spacing (SCS), the same cyclic prefix (CP), and the same waveform in two or more subbands that are not contiguous. In some cases, this step refers to the operation of a reference signal as described above. Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0174] In some respects, the time difference (RTD) of the downlink channel or reference signal transmitted on two or more subbands in a non-contiguous subband within a virtual cell is less than a threshold T. MRTD ;T CP It is the time duration of the cyclic prefix (CP) length associated with the reference or maximum subcarrier spacing (SCS) supported by the virtual cell; L It is an integer greater than 1 associated with the reference or maximum SCS supported by the virtual cell; and T MRTD Less than T CP / L .

[0175] In some aspects, method 1300 also includes sending one or more timing advance (TA) commands to a user equipment (UE) communicating in a virtual cell for a non-contiguous subband. In some cases, this step refers to the operation as described in reference... Figure 15The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0176] In some aspects, method 1300 further includes transmitting downlink (DL) reference signals (RS) on two or more subbands in non-contiguous subbands, wherein the difference in the average received power of the two or more subbands is less than a threshold P. MRPD In some cases, this step refers to the operation as described in the reference. Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0177] In some aspects, method 1300 also includes transmitting downlink (DL) signals to the user equipment (UE) via one or more first subbands in a non-contiguous subband. In some cases, this step refers to the operation as described in reference... Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0178] In some aspects, method 1300 also includes receiving uplink (UL) signals from the UE simultaneously with transmission via one or more second subbands in a non-contiguous subband. In some cases, this step refers to the operation as described in reference... Figure 15 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0179] In some respects, configuring multiple non-contiguous subbands includes configuring a duplex frequency gap between the first subband and the second subband.

[0180] In some respects, duplex frequency gaps are created and reserved for another network entity or another RAT.

[0181] In some aspects, method 1300 further includes configuring at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code described for configuration, or that can be executed by the circuitry and / or the code.

[0182] In some aspects, method 1300 also includes communicating with the user equipment (UE) in half-duplex (HD) mode via at least one of a first UL BWP or a first DL BWP. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code used for communication described herein, or that can be executed by the circuitry and / or the code.

[0183] In some aspects, method 1300 further includes configuring at least one of the following: a second UL BWP or a second DL BWP configured on a virtual cell. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code described for configuration, or that can be executed by the circuitry and / or the code.

[0184] In some aspects, method 1300 further includes communicating with the UE in full-duplex (FD) mode via at least one of the second UL BWP or the second DL BWP based on the configuration of at least one of the second UL BWP or the second DL BWP. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code used for communication described herein, or that can be executed by the circuitry and / or the code.

[0185] In some aspects, method 1300 also includes a first uplink (UL) bandwidth portion (BWP) and a first downlink (DL) BWP configured on a virtual cell, wherein the frequency gap is between the first UL BWP and the first DL BWP. In some cases, the operation of this step refers to, as referenced... Figure 15 The circuitry and / or code described for configuration, or that can be executed by the circuitry and / or the code.

[0186] In some aspects, method 1300 also includes communicating with the user equipment (UE) in full-duplex (FD) mode via at least one of a first UL BWP or a first DL BWP, based on a frequency gap that is not a transmission reservation for a network entity's radio access technology (RAT) or another RAT. In some cases, the operation of this step refers to... Figure 15 The circuitry and / or code used for communication described herein, or that can be executed by the circuitry and / or the code.

[0187] In some respects, a non-contiguous subband is part of at least one of the following: the uplink bandwidth portion (BWP) or the downlink BWP configured on a virtual cell.

[0188] In some respects, the configuration of the uplink BWP or downlink BWP includes a bitmap; each bit of the bitmap corresponds to a subband in a non-contiguous subband configured for the virtual cell; the first value of each bit indicates that the corresponding subband is configured for the BWP; and the second value of each bit indicates that the corresponding subband is not configured for the BWP.

[0189] In some respects, the configuration of the uplink BWP or downlink BWP includes a first indication for the first subband and a second indication for the second subband; and the first subband, the second subband, and all subbands having indices between the first index of the first subband and the second index of the second subband are configured for the BWP.

[0190] In some aspects, the communication configuration includes sending signaling indicating multiple non-contiguous subbands, wherein the signaling includes system information (SI) indicating the location, bandwidth, and index of the subbands configured for the virtual cell on the downlink, uplink, or both downlink and uplink.

[0191] In some aspects, method 1300 further includes transmitting downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein the FDRA field indicates one or more frequency allocations in multiple non-contiguous subbands for communication to or from network entities. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0192] In some aspects, method 1300 further includes transmitting downlink control information (DCI) comprising multiple frequency domain resource allocation (FDRA) fields, wherein each FDRA field indicates one or more frequency allocations in a corresponding subband of multiple non-contiguous subbands for communication to or from a network entity. In some cases, this step refers to operations as described in reference Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0193] In some aspects, method 1300 further includes receiving a Physical Random Access Channel (PRACH) configured for a contention-based or contention-free random access procedure on a first subband of a plurality of non-contiguous subbands. In some cases, this step refers to operations as described in reference... Figure 15 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0194] In some aspects, method 1300 further includes sending a random access response (RAR) based on a random access radio network temporary identifier (RA-RNTI), a message B radio network temporary identifier (msgB-RNTI), or a cell radio network temporary identifier (C-RNTI) determined according to the PRACH transmission in the first subband. In some cases, this step refers to the operation as described in reference Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0195] In some respects, transmitting the RAR includes: transmitting downlink control information (DCI) addressed to RA-RNTI, msgB-RNTI, or C-RNTI on a second subband among multiple non-contiguous subbands; and transmitting a transport block of the RAR mapped to the downlink data channel on a third subband indicated by the DCI among multiple non-contiguous subbands.

[0196] In some aspects, method 1300 also includes receiving uplink transmissions based on the timing advance command, temporary C-RNTI (TC-RNTI), and uplink permission in the RAR. In some cases, this step refers to the operation as described in reference... Figure 15 The circuitry and / or code described for receiving, or that can be executed by the circuitry and / or the code.

[0197] In some aspects, method 1300 also includes transmitting downlink control information (DCI) addressed to a TC-RNTI or C-RNTI on a second subband among multiple non-contiguous subbands. In some cases, this step refers to the operation as described in reference... Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0198] In some aspects, method 1300 further includes sending a contention resolution message on a third or fourth subband indicated by the DCI among multiple non-contiguous subbands. In some cases, this step refers to the operation as described in reference... Figure 15 The circuitry and / or code described for transmitting, or that can be executed by the circuitry and / or the code.

[0199] In one aspect, method 1300 or any aspect thereof may be made by means of a device (such as...) Figure 15 The communication device 1500 performs the execution, and the device includes various components capable of operating, being configured, or adapted to perform the method 1300. The communication device 1500 is described in more detail below.

[0200] It should be noted that Figure 13 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.

[0201] Example communication device Figure 14 Various aspects of the example communication device 1400 are described. In some aspects, the communication device 1400 is user equipment, such as those described above relative to... Figure 1 and Figure 3 The UE 104 described.

[0202] Communication device 1400 includes a processing system 1405 coupled to a transceiver 1455 (e.g., a transmitter and / or receiver). Transceiver 1455 is configured to transmit and receive signals for communication device 1400 via antenna 1460, such as various signals as described herein. Processing system 1405 may be configured to perform processing functions of communication device 1400, including processing signals received by and / or to be transmitted by communication device 1400.

[0203] 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. One or more processors 1410 are coupled to a computer-readable medium / memory 1430 via a bus 1450. In some aspects, the computer-readable medium / memory 1430 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 12 The method 1200 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 those functions of communication device 1400.

[0204] In the depicted example, computer-readable medium / memory 1430 stores code (e.g., executable instructions), such as code 1435 for receiving, code 1440 for communicating, and code 1445 for transmitting. Processing the code 1435 for receiving, the code 1440 for communicating, and the code 1445 for transmitting causes the communication device 1400 to perform actions relative to... Figure 12 The method 1200 described or any aspect thereof.

[0205] One or more processors 1410 include circuitry configured to implement (e.g., execute) code stored in computer-readable medium / memory 1430, including circuitry such as circuitry 1415 for receiving, circuitry 1420 for communicating, and circuitry 1425 for transmitting. Processing performed using the circuitry 1415 for receiving, the circuitry 1420 for communicating, and the circuitry 1425 for transmitting enables the communication device 1400 to perform operations relative to... Figure 12 The method 1200 described or any aspect thereof.

[0206] The various components of the communication device 1400 can provide for performing relative to Figure 12The described method 1200 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 14 The communication device 1400 includes a transceiver 1455 and an antenna 1460. Components for receiving or acquiring data may include... Figure 3 The transceiver 354 and / or antenna 352 of the illustrated UE 104 Figure 14 The transceiver 1455 and antenna 1460 of the communication device 1400.

[0207] Figure 15 Various aspects of the example communication device 1500 are described. In some aspects, the communication device 1500 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.

[0208] Communication device 1500 includes a processing system 1505 coupled to a transceiver 1565 (e.g., a transmitter and / or receiver) and / or a network interface 1575. Transceiver 1565 is configured to transmit and receive signals for communication device 1500 via antenna 1570, such as various signals as described herein. Network interface 1575 is configured to transmit and receive signals for communication device 1500 via a communication link (such as those described herein, such as relative to...). Figure 2 The described backhaul link, midhaul link, and / or fronthaul link acquire and transmit signals for communication device 1500. Processing system 1505 can be configured to perform processing functions of communication device 1500, including processing signals received by and / or to be transmitted by communication device 1500.

[0209] Processing system 1505 includes one or more processors 1510. In various aspects, the one or more processors 1510 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 1510 are coupled to a computer-readable medium / memory 1535 via a bus 1560. In some aspects, the computer-readable medium / memory 1535 is configured to store instructions (e.g., computer-executable code) that, when executed by one or more processors 1510, cause one or more processors 1510 to perform relative to Figure 13 The method 1300 described herein or any aspect thereof. It should be noted that references to the processor performing the function of the communication device 1500 may include one or more processors 1510 of the communication device 1500 performing that function.

[0210] In the depicted example, computer-readable medium / memory 1535 stores code (e.g., executable instructions), such as code 1540 for configuration, code 1545 for communication, code 1550 for transmission, and code 1555 for reception. Processing the code 1540 for configuration, the code 1545 for communication, the code 1550 for transmission, and the code 1555 for reception enables the communication device 1500 to perform actions relative to... Figure 13 The method described 1300 or any aspect thereof.

[0211] One or more processors 1510 include circuitry configured to implement (e.g., execute) code stored in a computer-readable medium / memory 1535, including circuitry such as circuitry 1515 for configuration, circuitry 1520 for communication, circuitry 1525 for transmission, and circuitry 1530 for reception. Processing performed using the circuitry 1515 for configuration, the circuitry 1520 for communication, the circuitry 1525 for transmission, and the circuitry 1530 for reception enables the communication device 1500 to perform operations relative to... Figure 13 The method described 1300 or any aspect thereof.

[0212] The various components of the communication device 1500 can provide for performing relative to Figure 13 The components of the described method 1300 or any aspect thereof. Components for transmitting, conveying, or outputting for transmission may include... Figure 3 The transceiver 332 and / or antenna 334 of the illustrated BS 102 Figure 15 The communication device 1500 includes a transceiver 1565 and an antenna 1570. Components for receiving or acquiring data may include... Figure 3 The transceiver 332 and / or antenna 334 of the illustrated BS 102 Figure 15 The transceiver 1565 and antenna 1570 of the communication equipment 1500.

[0213] Example Terms 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 signaling indicating a plurality of discontinuous subbands configured for a virtual cell; and communicating in the virtual cell via the discontinuous subbands.

[0214] Clause 2: The method described in Clause 1, wherein the non-contiguous subband is a portion of at least one of the following: an uplink bandwidth portion (BWP) or a downlink BWP configured on the virtual cell.

[0215] Clause 3: The method according to any one of Clauses 1 to 2, wherein the signaling includes system information (SI) indicating the location, bandwidth, and index of a subband configured for the virtual cell on the downlink, uplink, or both the downlink and uplink.

[0216] Clause 4: The method according to Clause 2, wherein: the configuration of the uplink BWP or the downlink BWP includes a bitmap; each bit of the bitmap corresponds to a subband in the non-contiguous subband configured for the virtual cell; a first value of each bit indicates that the corresponding subband is configured for the BWP; and a second value of each bit indicates that the corresponding subband is not configured for the BWP.

[0217] Clause 5: The method according to Clause 2, wherein: the configuration of the uplink BWP or the downlink BWP includes a first indication for a first subband and a second indication for a second subband; and the first subband, the second subband, and all subbands having an index between the first index of the first subband and the second index of the second subband are configured for the BWP.

[0218] Clause 6: The method according to any one of Clauses 1 to 5, wherein communication in the virtual cell comprises: receiving downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein the FDRA field indicates one or more frequency allocations in the plurality of non-contiguous subbands for communication to or from the UE.

[0219] Clause 7: The method according to any one of Clauses 1 to 6, wherein communication in the virtual cell comprises: receiving downlink control information (DCI) including a plurality of frequency domain resource allocation (FDRA) fields, wherein each FDRA field indicates one or more frequency allocations in a corresponding subband of the plurality of non-contiguous subbands for communication to or from the UE.

[0220] Clause 8: The method according to any one of Clauses 1 to 7, wherein communication in the virtual cell comprises: transmitting a Physical Random Access Channel (PRACH) configured for a contention-based or contention-free random access procedure on a first subband of the plurality of non-contiguous subbands; and receiving a Random Access Response (RAR) based on a Random Access Radio Network Temporary Identifier (RA-RNTI), a Message B Radio Network Temporary Identifier (msgB-RNTI), or a Cell Radio Network Temporary Identifier (C-RNTI) determined according to the PRACH in the first subband.

[0221] Clause 9: The method according to Clause 8, wherein receiving the RAR comprises: receiving downlink control information (DCI) addressed to the RA-RNTI, the msgB-RNTI, or the C-RNTI on a second subband of the plurality of non-contiguous subbands; and receiving a transport block of the RAR mapped to a downlink data channel on a third subband indicated by the DCI in the plurality of non-contiguous subbands.

[0222] Clause 10: The method according to Clause 8 further comprises: sending uplink transmission based on a timing advance command, a temporary C-RNTI (TC-RNTI), and uplink permission in the RAR; receiving downlink control information (DCI) addressed to the TC-RNTI or the C-RNTI on a second subband of the plurality of non-contiguous subbands; and receiving a contention resolution message on a third or fourth subband indicated by the DCI in the plurality of non-contiguous subbands.

[0223] Clause 11: The method according to any one of Clauses 1 to 10, wherein communication in the virtual cell comprises: receiving a reference signal (RS) on a first subband of a plurality of non-contiguous subbands; receiving a source RS on a second subband of a plurality of non-contiguous subbands; and measuring the RS on the first subband based on the quasi-co-addressing (QCL) of the RS on the first subband and the source RS on the second subband.

[0224] Clause 12: The method according to any one of Clauses 1 to 11 further comprises: receiving a DL signal from a network entity via one or more first subbands of the active downlink (DL) bandwidth portion (BWP) of the virtual cell; and transmitting a UL signal to the network entity via one or more second subbands of the active uplink (UL) BWP of the virtual cell, wherein the active DL BWP and the active UL BWP include spectrum resources that satisfy at least one of the following: refarmed from an legacy radio access technology (RAT) or shared with a legacy RAT.

[0225] Clause 13: The method described in Clause 12, wherein the spectrum resource is at least one of the following: frequency division duplex (FDD) band, time division duplex (TDD) band, supplementary DL (SDL) band, or supplementary UL (SUL) band.

[0226] Clause 14: The method according to any one of Clauses 1 to 13, wherein communication in the virtual cell comprises: receiving a configuration of at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; communicating in half-duplex (HD) mode via at least one of the first UL BWP or the first DL BWP; receiving another configuration of at least one of the following: a second UL BWP or a second DL BWP configured on the virtual cell; and communicating in full-duplex (FD) mode based on the other configuration via at least one of the second UL BWP or the second DLBWP, wherein the HD mode or the FD mode satisfies at least one of the following: being configured jointly with the corresponding first UL BWP, first DL BWP, second UL BWP or second DL BWP, or being individually indicated to the UE after the corresponding first UL BWP configuration, first DL BWP configuration, second UL BWP configuration or second DL BWP configuration.

[0227] Clause 15: The method according to any one of Clauses 1 to 14, wherein communicating in the virtual cell comprises: receiving a configuration of at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; and reporting the ability to communicate in full-duplex (FD) mode based on the configuration.

[0228] Clause 16: The method according to any one of Clauses 1 to 15, wherein communicating in the virtual cell comprises: receiving a configuration of at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; and reporting the ability to communicate in a first half-duplex (HD) mode or a second HD mode based on the configuration.

[0229] Clause 17: A method for wireless communication by a network entity, the method comprising: configuring a plurality of discontinuous subbands for downlink (DL) or uplink (UL) operation of a virtual cell; and communicating the configuration of the virtual cell.

[0230] Clause 18: The method according to Clause 17, wherein each of the plurality of discontinuous subbands belongs to the same frequency range as each of the other subbands in the plurality of discontinuous subbands.

[0231] Clause 19: The method according to any one of Clauses 17 to 18, wherein the frequency gap between a subband in the discontinuous subband and the next subband in the discontinuous subband is less than the threshold FMGAP.

[0232] Clause 20: The method according to any one of Clauses 17 to 19, wherein the sum of the bandwidths of all said non-contiguous subbands is less than a threshold F. MSUM .

[0233] Clause 21: The method according to any one of Clauses 17 to 20, the method further comprising: transmitting a physical channel or reference signal (RS) on two or more subbands using the same subcarrier spacing (SCS), the same cyclic prefix (CP), and the same waveform.

[0234] Clause 22: The method according to any one of Clauses 17 to 21, wherein: the time difference (RTD) of the downlink channel or reference signal transmitted on two or more subbands in the non-contiguous subbands of the virtual cell is less than a threshold T. MRTD ;T CP It is the time duration of the cyclic prefix (CP) length associated with the reference or maximum subcarrier spacing (SCS) supported by the virtual cell; L It is an integer greater than 1 associated with the reference or maximum SCS supported by the virtual cell; and T MRTD Less than T CP / L .

[0235] Clause 23: The method according to any one of Clauses 17 to 22, the method further comprising: sending one or more timing advance (TA) commands for the non-contiguous subband to a user equipment (UE) communicating in the virtual cell.

[0236] Clause 24: The method according to any one of Clauses 17 to 23, further comprising: transmitting a downlink (DL) reference signal (RS) on two or more subbands in the non-contiguous subbands, wherein the difference in the average received power of the two or more subbands is less than a threshold P. MRPD .

[0237] Clause 25: The method according to any one of Clauses 17 to 24, the method further comprising: transmitting a downlink (DL) signal to a user equipment (UE) via one or more first subbands of the non-contiguous subbands; and receiving an uplink (UL) signal from the UE via one or more second subbands of the non-contiguous subbands simultaneously with the transmission.

[0238] Clause 26: The method according to Clause 25, wherein configuring the plurality of non-contiguous subbands includes configuring a duplex frequency gap between the first subband and the second subband.

[0239] Clause 27: The method described in Clause 26, wherein the duplex frequency gap is created and reserved for another network entity or another RAT.

[0240] Clause 28: The method according to any one of Clauses 17 to 27 further comprises: configuring at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; communicating with a user equipment (UE) in half-duplex (HD) mode via at least one of the first UL BWP or the first DL BWP; configuring at least one of the following: a second UL BWP or a second DLBWP configured on the virtual cell; and communicating with the UE in full-duplex (FD) mode via at least one of the second UL BWP or the second DL BWP based on the configuration of the at least one of the second UL BWP or the second DL BWP.

[0241] Clause 29: The method according to any one of Clauses 17 to 28, the method further comprising: configuring a first uplink (UL) bandwidth portion (BWP) and a first downlink (DL) BWP configured on the virtual cell, wherein a frequency gap is between the first UL BWP and the first DL BWP; and communicating with the user equipment (UE) in full-duplex (FD) mode via at least one of the first UL BWP or the first DL BWP, based on the fact that the frequency gap is not reserved for transmission of a radio access technology (RAT) or another RAT of the network entity.

[0242] Clause 30: The method according to any one of Clauses 17 to 29, wherein the non-contiguous subband is a portion of at least one of the following: an uplink bandwidth portion (BWP) or a downlink BWP configured on the virtual cell.

[0243] Clause 31: The method according to any one of Clauses 17 to 30, wherein communicating the configuration includes sending signaling indicating the plurality of non-contiguous subbands, wherein the signaling includes system information (SI) indicating the location, bandwidth, and index of the subbands configured for the virtual cell on the downlink, uplink, or both downlink and uplink.

[0244] Clause 32: The method according to Clause 30, wherein: the configuration of the uplink BWP or the downlink BWP includes a bitmap; each bit of the bitmap corresponds to a subband in the non-contiguous subband configured for the virtual cell; a first value of each bit indicates that the corresponding subband is configured for the BWP; and a second value of each bit indicates that the corresponding subband is not configured for the BWP.

[0245] Clause 33: The method according to Clause 30, wherein: the configuration of the uplink BWP or the downlink BWP includes a first indication for a first subband and a second indication for a second subband; and the first subband, the second subband, and all subbands having an index between the first index of the first subband and the second index of the second subband are configured for the BWP.

[0246] Clause 34: The method according to any one of Clauses 17 to 33, the method further comprising: transmitting downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein the FDRA field indicates one or more frequency allocations in the plurality of non-contiguous subbands for communication to or from the network entity.

[0247] Clause 35: The method according to any one of Clauses 17 to 34, the method further comprising: transmitting downlink control information (DCI) including a plurality of frequency domain resource allocation (FDRA) fields, wherein each FDRA field indicates one or more frequency allocations in a corresponding subband of the plurality of non-contiguous subbands for communication to or from the network entity.

[0248] Clause 36: The method according to any one of Clauses 17 to 35, the method further comprising: receiving a Physical Random Access Channel (PRACH) configured for a contention-based or contention-free random access procedure on a first subband of the plurality of non-contiguous subbands; and transmitting a Random Access Response (RAR) based on transmitting a determined Random Access Radio Network Temporary Identifier (RA-RNTI), Message B Radio Network Temporary Identifier (msgB-RNTI), or Cell Radio Network Temporary Identifier (C-RNTI) according to the PRACH in the first subband.

[0249] Clause 37: The method according to Clause 36, wherein transmitting the RAR comprises: transmitting downlink control information (DCI) addressed to the RA-RNTI, the msgB-RNTI, or the C-RNTI on a second subband of the plurality of non-contiguous subbands; and transmitting a transport block of the RAR mapped to a downlink data channel on a third subband indicated by the DCI in the plurality of non-contiguous subbands.

[0250] Clause 38: The method according to Clause 37 further comprises: receiving uplink transmissions based on a timing advance command, a temporary C-RNTI (TC-RNTI), and uplink clearance in the RAR; transmitting downlink control information (DCI) addressed to the TC-RNTI or the C-RNTI on a second subband of the plurality of non-contiguous subbands; and transmitting a contention resolution message on a third or fourth subband indicated by the DCI in the plurality of non-contiguous subbands.

[0251] Clause 39: An apparatus comprising: a memory including executable instructions; and a processor configured to execute the executable instructions and cause the apparatus to perform a method according to any one of Clauses 1 to 38.

[0252] Clause 40: An apparatus comprising components for performing the method according to any one of Clauses 1 to 38.

[0253] Clause 41: A non-transitory computer-readable medium comprising executable instructions that, when executed by a processor of a device, cause the device to perform a method according to any one of Clauses 1 to 38.

[0254] Clause 42: A computer program product embodied on a computer-readable storage medium, the computer program product comprising code for performing a method according to any one of Clauses 1 to 38.

[0255] Additional Notes 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 some other examples. 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 these claims.

[0256] The various exemplary logic blocks, modules, and circuits described in this disclosure can be implemented or executed using a general-purpose processor, digital signal processor (DSP), ASIC, field-programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic device, 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.

[0257] 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.

[0258] As used in this article, the phrase “at least one of the items” refers to any combination of these items, including a single member. As an 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, cc, and ccc, or any other ordering of a, b, and c).

[0259] 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.

[0260] 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.

[0261] 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” refers to 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 be known later, 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 stated in the claims.

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: At least one memory, the at least one memory including computer-executable instructions; and One or more processors, the one or more processors being configured to execute the computer-executable instructions and cause the UE to: Receive signaling indicating multiple non-contiguous subbands configured for a virtual cell; and Communication takes place in the virtual cell via the non-contiguous subband.

2. The apparatus of claim 1, wherein the non-contiguous subband is a portion of at least one of: an uplink bandwidth portion (BWP) or a downlink BWP configured on the virtual cell.

3. The apparatus of claim 1, wherein the signaling includes system information (SI) indicating the location, bandwidth, and index of a subband configured for the virtual cell on the downlink, uplink, or both the downlink and uplink.

4. The apparatus according to claim 2, wherein: The configuration of the uplink BWP or the downlink BWP includes a bitmap; Each bit of the bitmap corresponds to a subband in the non-contiguous subband configured for the virtual cell; The first value of each bit indicates that the corresponding subband is configured for BWP; and The second value of each bit indicates that the corresponding subband is not configured for the BWP.

5. The apparatus according to claim 2, wherein: The configuration of the uplink BWP or the downlink BWP includes a first indication of the first subband and a second indication of the second subband; and The first sub-band, the second sub-band, and all sub-bands having indices between the first index of the first sub-band and the second index of the second sub-band are configured for the BWP.

6. The apparatus of claim 1, wherein communication in the virtual cell comprises: Receive downlink control information (DCI), the downlink control information (DCI) including at least one of the following: Frequency Domain Resource Allocation (FDRA) field, wherein the FDRA field indicates one or more frequency allocations in the plurality of non-contiguous subbands for communication to or from the UE; or Multiple Frequency Domain Resource Allocation (FDRA) fields, wherein each FDRA field indicates one or more frequency allocations in a corresponding subband of the multiple non-contiguous subbands for communication to or from the UE.

7. The apparatus of claim 1, wherein communication in the virtual cell comprises: Transmit a Physical Random Access Channel (PRACH) configured for a contention-based or contention-free random access procedure on the first subband of the plurality of non-contiguous subbands. as well as The random access response (RAR) is received based on at least one of the random access radio network temporary identifier (RA-RNTI), message B radio network temporary identifier (msgB-RNTI), or cell radio network temporary identifier (C-RNTI) determined according to the PRACH transmission in the first subband.

8. The apparatus of claim 7, wherein receiving the RAR comprises: Downlink control information (DCI) addressed to the RA-RNTI, the msgB-RNTI, or the C-RNTI is received on the second subband of the plurality of non-contiguous subbands. as well as The RAR's transport block mapped to the downlink data channel is received on the third subband indicated by the DCI among the plurality of non-contiguous subbands.

9. The apparatus of claim 7, wherein the one or more processors are further configured to cause the UE to: Uplink transmission is performed based on the timing advance command, temporary C-RNTI (TC-RNTI), and uplink permission in the RAR. Receive downlink control information (DCI) addressed to the TC-RNTI or the C-RNTI on the second subband of the plurality of non-contiguous subbands; and A contention resolution message is received on the second or third subband indicated by the DCI among the plurality of non-contiguous subbands.

10. The apparatus of claim 1, wherein communication in the virtual cell comprises: A reference signal (RS) is received on the first sub-band of the plurality of discontinuous sub-bands; Receive source RS on the second subband of the plurality of non-contiguous subbands; as well as The RS on the first subband is measured based on the quasi-co-addressable (QCL) of the RS on the first subband and the source RS on the second subband.

11. The apparatus of claim 1, wherein the one or more processors are further configured to cause the UE to: Receive DL signals from a network entity via one or more first subbands of the active downlink (DL) bandwidth portion (BWP) of the virtual cell; and UL signals are transmitted to the network entity via one or more second subbands of the active uplink (UL) BWP of the virtual cell, wherein the active DL BWP and the active UL BWP include spectrum resources that satisfy at least one of the following: refarmed from legacy radio access technology (RAT) or shared with legacy RAT.

12. The apparatus of claim 1, wherein communication in the virtual cell comprises: Receive at least one of the following configurations: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; Communication is performed in half-duplex (HD) mode via at least one of the first UL BWP or the first DL BWP; Receive another configuration of at least one of the following: a second UL BWP or a second DLBWP configured on the virtual cell; as well as Based on the other configuration, communication is performed in full-duplex (FD) mode via at least one of the second UL BWP or the second DL BWP, wherein the HD mode or the FD mode satisfies at least one of the following: Configured in conjunction with the corresponding first UL BWP, first DL BWP, second UL BWP, or second DL BWP, or The UE is individually instructed after the corresponding first UL BWP configuration, first DL BWP configuration, second UL BWP configuration, or second DL BWP configuration.

13. The apparatus of claim 1, wherein communication in the virtual cell comprises: Receive at least one of the following configurations: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; as well as The ability to communicate in full-duplex (FD) mode is reported based on the configuration.

14. The apparatus of claim 1, wherein communication in the virtual cell comprises: Receive at least one of the following configurations: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; as well as The ability to report communication in either the first half-duplex (HD) mode or the second HD mode based on the configuration.

15. An apparatus for wireless communication at a network entity, the apparatus comprising: At least one memory, the at least one memory including computer-executable instructions; and One or more processors, the one or more processors being configured to execute the computer-executable instructions and cause the network entity to: Configure multiple non-contiguous subbands for downlink (DL) or uplink (UL) operation of a virtual cell; and The configuration of the virtual cell is conveyed.

16. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: The same subcarrier spacing (SCS), the same cyclic prefix (CP), and the same waveform are used to transmit the physical channel or reference signal (RS) on two or more subbands in the non-contiguous subbands.

17. The apparatus according to claim 15, wherein: The time difference (RTD) of the downlink channel or reference signal transmitted on two or more subbands in the non-contiguous subbands of the virtual cell is less than a threshold T. MRTD ; T CP It is the time duration of the cyclic prefix (CP) length associated with the reference or maximum subcarrier spacing (SCS) supported by the virtual cell; L It is an integer greater than 1 associated with the reference or maximum SCS supported by the virtual cell; and T MRTD Less than T CP / L .

18. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: Send one or more timing advance (TA) commands for the non-contiguous subband to the user equipment (UE) communicating in the virtual cell.

19. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: Transmitting downlink (DL) signals to the user equipment (UE) via one or more first subbands in the non-contiguous subbands; and The UE receives uplink (UL) signals from the UE simultaneously with the transmission via one or more second subbands in the non-contiguous subbands.

20. The apparatus of claim 19, wherein configuring the plurality of discontinuous subbands includes configuring a duplex frequency gap between the first subband and the second subband.

21. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: Configure at least one of the following: a first uplink (UL) bandwidth portion (BWP) or a first downlink (DL) BWP configured on the virtual cell; Communicating with user equipment (UE) in half-duplex (HD) mode via at least one of the first UL BWP or the first DL BWP; Configure at least one of the following: a second UL BWP or a second DL BWP configured on the virtual cell; and Based on the configuration of at least one of the second UL BWP or the second DL BWP, the UE is communicated via the second UL BWP or the second DL BWP in full-duplex (FD) mode.

22. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: A first uplink (UL) bandwidth portion (BWP) and a first downlink (DL) BWP are configured on the virtual cell, wherein the frequency gap is between the first UL BWP and the first DL BWP; and Based on the fact that the frequency gap is not reserved for the transmission of the network entity's Radio Access Technology (RAT) or another RAT, communication with the User Equipment (UE) via at least one of the first UL BWP or the first DL BWP in full-duplex (FD) mode is permitted.

23. The apparatus of claim 15, wherein communicating the configuration includes sending signaling indicating the plurality of non-contiguous subbands, wherein the signaling includes system information (SI) indicating the location, bandwidth, and index of the subbands configured for the virtual cell on the downlink, uplink, or both the downlink and uplink.

24. The apparatus according to claim 15, wherein: The non-contiguous subband is a portion of at least one of the following: the uplink bandwidth portion (BWP) or the downlink BWP configured on the virtual cell; The configuration of the uplink BWP or the downlink BWP includes a bitmap; Each bit of the bitmap corresponds to a subband in the non-contiguous subband configured for the virtual cell; The first value of each bit indicates that the corresponding subband is configured for BWP; and The second value of each bit indicates that the corresponding subband is not configured for the BWP.

25. The apparatus according to claim 15, wherein: The non-contiguous subband is a portion of at least one of the following: the uplink bandwidth portion (BWP) or the downlink BWP configured on the virtual cell; The configuration of the uplink BWP or the downlink BWP includes a first indication of the first subband and a second indication of the second subband; and The first sub-band, the second sub-band, and all sub-bands having indices between the first index of the first sub-band and the second index of the second sub-band are configured for the BWP.

26. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: Sending downlink control information (DCI), the downlink control information (DCI) including at least one of the following: Frequency Domain Resource Allocation (FDRA) field, wherein the FDRA field indicates one or more frequency allocations in the plurality of non-contiguous subbands for communication to or from the network entity; or Multiple Frequency Domain Resource Allocation (FDRA) fields, wherein each FDRA field indicates one or more frequency allocations in a corresponding subband of the multiple non-contiguous subbands for communication to or from the network entity.

27. The apparatus of claim 15, wherein the one or more processors are further configured to cause the network entity to: Receive a Physical Random Access Channel (PRACH) configured for a contention-based or contention-free random access procedure on the first subband of the plurality of non-contiguous subbands; and Send a random access response (RAR) addressed to the random access radio network temporary identifier (RA-RNTI), message B radio network temporary identifier (msgB-RNTI), or cell radio network temporary identifier (C-RNTI) determined by PRACH transmission in the first subband.

28. The apparatus according to claim 27, wherein: Sending the RAR includes: Transmit downlink control information (DCI) addressing to the RA-RNTI, the msgB-RNTI, or the C-RNTI on the second subband of the plurality of non-contiguous subbands; and The RAR's mapping to the downlink data channel transport block is transmitted on the third subband indicated by the DCI among the plurality of non-contiguous subbands; and The one or more processors are further configured to cause the network entity to: Receive uplink transmissions based on the timing advance command, temporary C-RNTI (TC-RNTI), and uplink permission in the RAR; Transmit downlink control information (DCI) addressing the TC-RNTI or the C-RNTI on the second subband of the plurality of non-contiguous subbands; and A contention resolution message is sent on the second or third subband indicated by the DCI among the plurality of non-contiguous subbands.

29. A method for wireless communication by a user equipment (UE), the method comprising: Receive signaling indicating multiple non-contiguous subbands configured for a virtual cell; as well as Communication takes place in the virtual cell via the non-contiguous subband.

30. A method for wireless communication by a network entity, the method comprising: Configure multiple non-contiguous subbands for downlink (DL) or uplink (UL) operation of virtual cells; as well as The configuration of the virtual cell is conveyed.

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