Cell resource allocation report

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a network node may send information indicating a cell served by the network node and associated with another CU to an integrated access and backhaul (IAB) donor central unit (CU). The network node may receive a distributed unit (DU) cell resource configuration for the cell from the IAB donor CU. Numerous other aspects are also described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 706,851, filed on September 14, 2020, entitled “CELL REPORTING FOR INTEGRATED ACCESS AND BACKHAUL RADIOACCESS NETWORK SHARING,” and U.S. Non-Provisional Patent Application No. 17 / 447,522, filed on September 13, 2021, entitled “CELL RESOURCE CONFIGURATION REPORTING,” which are expressly incorporated herein by reference. Technical Field

[0003] Various aspects of the present disclosure relate generally to wireless communications and cell reporting techniques and apparatus for integrated access and backhaul (IAB) radio access network (RAN) sharing. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include several base stations (BSs) that can support communication for multiple user equipment (UEs). UEs can communicate with a BS via downlinks and uplinks. A "downlink" (or "forward link") refers to the communication link from the BS to the UE, and an "uplink" (or "reverse link") refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables diverse user devices to communicate at municipal, national, regional, and even global levels. NR, also known as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR aims to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL). Furthermore, NR supports beamforming, multiple-input, multiple-output (MIMO) antenna technology, and carrier aggregation for better integration with other open standards, thereby better supporting mobile broadband internet access. With the increasing demand for mobile broadband access, further improvements to LTE, NR, and other radio access technologies remain necessary. Summary of the Invention

[0007] In some aspects, a wireless communication method performed by a network node includes: sending information indicating a cell served by the network node and associated with another CU to an integrated access and backhaul (IAB) donor central unit (CU); and receiving a distributed unit (DU) cell resource configuration for the cell from the IAB donor CU.

[0008] In some aspects, a method of wireless communication performed by an IAB donor CU includes receiving information from a network node indicating a cell served by the network node and associated with another CU; and sending a DU cell resource configuration of the cell to the network node.

[0009] In some aspects, a network node for wireless communication includes a memory and one or more processors coupled to the memory, the one or more processors configured to: send information indicating a cell served by the network node and associated with another CU to an IAB donor CU; and receive a DU cell resource configuration for the cell from the IAB donor CU.

[0010] In some aspects, an IAB donor CU for wireless communication includes a memory and one or more processors coupled to the memory, the one or more processors configured to: receive information from a network node indicating a cell served by the network node and associated with another CU; and send a DU cell resource configuration of the cell to the network node.

[0011] In some aspects, a non-transitory computer-readable medium storing a set of wireless communication instructions includes one or more instructions that, when executed by one or more processors of a network node, cause the network node to: send information indicating a cell served by the network node and associated with another CU to an IAB donor CU; and receive a DU cell resource configuration for the cell from the IAB donor CU.

[0012] In some aspects, a non-transitory computer-readable medium storing a set of wireless communication instructions includes one or more instructions that, when executed by one or more processors of an IAB donor CU, cause the IAB donor CU to: receive information from a network node indicating a cell served by the network node and associated with another CU; and send a DU cell resource configuration for the cell to the network node.

[0013] In some aspects, an apparatus for wireless communication includes: means for sending information indicating a cell served by the apparatus and associated with another CU to an IAB donor CU; and means for receiving a DU cell resource configuration for the cell from the IAB donor CU.

[0014] In some aspects, an apparatus for wireless communication includes: means for receiving information from a network node indicating a cell served by the network node and associated with another CU; and means for sending a DU cell resource configuration of the cell to the network node.

[0015] Various aspects of the present disclosure generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems generally described with reference to and illustrated by the accompanying drawings and description.

[0016] The features and technical advantages of the examples according to the present disclosure have been broadly summarized above so that the following detailed description may be better understood. Additional features and advantages will be described below. The concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures to achieve the same purposes of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. The features and related advantages of the concepts disclosed herein, including their construction and method of operation, may be better understood by reference to the following description in conjunction with the accompanying drawings. Each of the figures is provided for illustration and description purposes and is not to be construed as a limitation of the claims.

[0017] Although various aspects are described in this disclosure by illustrating some examples, it will be understood by those skilled in the art that these aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments and other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchasing devices, medical devices, or devices with artificial intelligence functions). Aspects of the present disclosure can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. The device including the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include multiple components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, mixers (adder), or adders). The aspects described herein are intended to be able to be practiced in various devices, components, systems, distributed arrangements, or end-user devices having different sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to enable a detailed understanding of the above-described features of the present disclosure, a more detailed description of the content briefly summarized above may be provided with reference to certain aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings illustrate only some typical aspects of the present disclosure and should not be considered as limiting its scope, as the description admits of other equally valid aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2 is a diagram illustrating an example of a base station communicating with a user equipment (UE) in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example of a radio access network according to the present disclosure.

[0022] Figure 4 is a diagram illustrating an example of an integrated access and backhaul (IAB) network architecture according to the present disclosure.

[0023] Figure 5 is a diagram illustrating examples of resource types in an IAB network according to the present disclosure.

[0024] Figure 6is a diagram illustrating an example of distributed unit (DU) cell resource configuration of IAB according to the present disclosure.

[0025] Figure 7 is a diagram illustrating an example of radio access network (RAN) sharing of IAB according to the present disclosure.

[0026] Figure 8 is a diagram illustrating an example of signaling associated with a DU indicating to an IAB donor central unit (CU) that a network node is associated with a cell or is associated with multiple CUs according to the present disclosure.

[0027] Figures 9 to 10 is a diagram illustrating example procedures associated with RAN sharing for IAB according to the present disclosure.

[0028] Figures 11 to 12 is a block diagram of an exemplary apparatus for wireless communication according to the present disclosure. DETAILED DESCRIPTION

[0029] The various aspects of the present disclosure will be described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be construed as being limited to any specific structure or function presented in the full text of the present disclosure. On the contrary, the provision of these aspects is to make the present disclosure thorough and complete, and to fully convey the concept of the present disclosure to those of ordinary skill in the art. Based on the teachings herein, those skilled in the art will understand that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, an apparatus or method can be implemented using any number of aspects set forth herein. In addition, the scope of the present disclosure is intended to cover apparatus or methods implemented using other structures, functions, or structures and functions that are substituted for or in addition to the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.

[0030] Several aspects of telecommunications systems will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements") and illustrated in the accompanying drawings. These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0031] It should be noted that although various aspects may be described herein using terminology generally associated with 5G or NR radio access technology (RAT), aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs beyond 5G (e.g., 6G).

[0032] Figure 1 is a diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, etc. The wireless network 100 may include several base stations 110 (illustrated as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0033] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS 110a may be a macro BS for macrocell 102a, BS 110b may be a pico BS for picocell 102b, and BS 110c may be a femto BS for femtocell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB," "base station," "NR BS," "gNB," "TRP," "AP," "Node B," "5G NB," and "cell" may be used interchangeably herein.

[0034] In some aspects, the cells are not necessarily stationary, but rather the geographic area of ​​the cells can move depending on the location of the mobile BS. In some aspects, the BSs can be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0035] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown, relay BS 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, relay base station, relay, etc.

[0036] The wireless network 100 may be a heterogeneous network including different types of BSs, such as macro BSs, pico BSs, femto BSs, and relay BSs. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0037] The network controller 130 may be coupled to a group of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.

[0038] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or instrument, a biometric sensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or video device or satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate over a wireless or wired medium.

[0039] Some UEs may be considered machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or other entities. For example, a wireless node may provide connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120, such as a processor component and / or a memory component. In some aspects, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0040] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. A frequency may also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0041] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, UEs 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0042] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating band having a first frequency range (FR1), which can be from 410 MHz to 7.125 GHz, and / or can communicate using an operating band having a second frequency range (FR2), which can be from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is generally referred to as the "sub-6 GHz" band. Similarly, FR2 is referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) defined as the "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise specifically stated, it should be understood that the terms "sub-6 GHz" and the like as used herein may broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specifically stated, it should be understood that the terms "millimeter wave" and the like as used herein may broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0043] As mentioned above, Figure 1 are provided as examples. Other examples may differ from the reference Figure 1 The content described.

[0044] Figure 2is a diagram illustrating an example 200 of a base station 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0045] In the base station 110, a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). If applicable, a transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and frequency upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0046] In UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, etc. In some aspects, one or more components of the UE 120 may be included in the housing 284 .

[0047] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0048] The antennas (e.g., antennas 234a through 234t and / or antennas 252a through 252r) may include, or be included within, one or more antenna panels, antenna groups, antenna element groups, and / or antenna arrays, etc. The antenna panels, antenna groups, antenna element groups, and / or antenna arrays may include one or more antenna elements. The antenna panels, antenna groups, antenna element groups, and / or antenna arrays may include a set of coplanar antenna elements and / or a set of non-coplanar antenna elements. The antenna panels, antenna groups, antenna element groups, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. The antenna panels, antenna groups, antenna element groups, and / or antenna arrays may include one or more antenna elements coupled to one or more transmit and / or receive components, such as Figure 2 One or more components of a .

[0049] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from the controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. If applicable, the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform the functions described herein. Figures 3 to 12 Aspects of any method described.

[0050] At base station 110, uplink signals from UE 120 and other UEs may be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in a modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein, for example, with reference to FIG. Figures 3 to 12 Aspects of any method described.

[0051] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, or Figure 2Any other components of the UE 120 may perform one or more of the associated techniques described in detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, or Figure 2 Any other component of may perform or instruct e.g. Figure 9 The operation of process 900, Figure 10 1000, and / or operations of other processes described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communications. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or instruct, for example Figure 9 The operation of process 900, Figure 10 The operations of process 1000 and / or operations of other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, etc.

[0052] In some aspects, a network node (e.g., BS 110) includes: means for sending information indicating a cell served by the network node and associated with another CU to an integrated access and backhaul (IAB) donor central unit (CU); and / or receiving means for receiving a distributed unit (DU) cell resource configuration for the cell from the IAB donor CU. The means for the network node to perform the operations described herein may include, for example, a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, and / or a scheduler 246.

[0053] In some aspects, a network node includes means for communicating on a cell based at least in part on a DU cell resource configuration. In some aspects, the network node includes means for providing services to a child node of the network node, wherein the child node is associated with a radio resource control connection to another CU. In some aspects, the network node includes means for receiving an indication from the other CU that a cell is activated; and / or means for communicating on the cell based at least in part on the DU cell resource configuration and at least in part on receiving the indication. In some aspects, the network node includes means for sending information indicating the activation status of the cell to an IAB donor CU based at least in part on receiving the indication. In some aspects, the network node includes means for receiving configuration information for the cell from the other CU; and / or means for sending at least a portion of the configuration information to the IAB donor CU, wherein the DU cell resource configuration is based at least in part on the configuration information. In some aspects, the network node includes means for communicating with a parent node of the network node based at least in part on the configuration information associated with the cell.

[0054] In some aspects, the IAB donor CU includes: means for receiving information from a network node indicating a cell served by the network node and associated with another CU; and / or means for sending a DU cell resource configuration of the cell to the network node. The means for the IAB donor CU to perform the operations described herein may include, for example, a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, and / or a scheduler 246.

[0055] In some aspects, the IAB donor CU includes means for receiving information indicating an activation status of a cell from a network node. In some aspects, the IAB donor CU includes means for receiving configuration information for the cell from the network node, wherein the DU cell resource configuration is based at least in part on the configuration information. In some aspects, the IAB donor CU includes means for sending configuration information about the cell to a parent node of the network node.

[0056] although Figure 2 The blocks in FIG. 2 are illustrated as distinct components, but the functionality described above with respect to the various blocks may be implemented in a single hardware, software, or combined component or various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the transmit MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0057] As mentioned above, Figure 2are provided as examples. Other examples may differ from the reference Figure 2 The content described.

[0058] Figure 3 is a diagram illustrating an example 300 of a radio access network according to the present disclosure.

[0059] As shown by reference numeral 305, a conventional (e.g., 3G, 4G, LTE, etc.) radio access network may include multiple base stations 310 (e.g., access nodes (ANs)), each of which communicates with a core network via a wired backhaul link 315, such as an optical fiber connection. The base stations 310 may communicate with UEs 320 via access links 325, which may be wireless links. In some aspects, Figure 3 The base station 310 shown may be Figure 1 The base station 110 is shown. In some aspects, Figure 3 The UE 320 shown may be Figure 1 UE 120 is shown.

[0060] As shown in the reference numeral 330, the radio access network may include a wireless backhaul network, sometimes referred to as an IAB network. In an IAB network, at least one base station is an anchor base station 335, which communicates with the core network via a wired backhaul link 340, such as a fiber connection. The anchor base station 335 may also be referred to as an IAB donor (or IAB-donor). The IAB network may include one or more non-anchor base stations 345, sometimes referred to as relay base stations or IAB nodes (or IAB nodes). The non-anchor base station 345 may communicate directly or indirectly with the anchor base station 335 via one or more backhaul links 350 (e.g., via one or more non-anchor base stations 345) to form a backhaul path to the core network for carrying backhaul traffic. The backhaul link 350 may be a wireless link. The anchor base station 335 and / or the non-anchor base station 345 may communicate with one or more UEs 355 via an access link 360, which may be a wireless link for carrying access traffic. In some aspects, Figure 3 The anchor base station 335 and / or the non-anchor base station 345 shown may be Figure 1 The base station 110 is shown. In some aspects, Figure 3 The UE 355 shown may be Figure 1 UE 120 is shown.

[0061] As shown in the figure numeral 365, in some aspects, the radio access network including the IAB network can utilize millimeter wave technology and / or directional communication (e.g., beamforming, etc.) to achieve communication between base stations and / or UEs (e.g., between two base stations, between two UEs, and / or between a base station and a UE). For example, the wireless backhaul link 370 between the base stations can use millimeter wave signals to carry information and / or can use beamforming and / or similar technologies to point to the target base station. Similarly, the wireless access link 375 between the UE and the base station can use millimeter wave signals and / or can point to the target wireless node (e.g., UE and / or base station). In this way, inter-link interference can be reduced.

[0062] Figure 3 The configuration of the base station and UE in is shown as an example, and other examples can be envisioned. For example, Figure 3 The one or more base stations shown in the figure may be replaced by one or more UEs communicating via a UE-to-UE access network (e.g., a peer-to-peer network, a device-to-device network, and / or the like). In this case, an "anchor node" may refer to a UE that communicates directly with a base station (e.g., an anchor base station or a non-anchor base station).

[0063] As mentioned above, Figure 3 are provided as examples. Other examples may differ from the reference Figure 3 The content described.

[0064] Figure 4 is a diagram illustrating an example 400 of an IAB network architecture according to the present disclosure.

[0065] like Figure 4As shown, the IAB network may include an IAB donor 405 (illustrated as IAB-Donor) connected to the core network via a wired connection (illustrated as wireline backhaul). For example, the Ng interface of the IAB donor 405 (e.g., a user plane interface between a Next Generation Radio Access Network (NG-RAN) node and a user plane function) may terminate at the core network. Additionally or alternatively, the IAB donor 405 may be connected to one or more devices of the core network that provide a core access and mobility management function (AMF). In some aspects, the IAB donor 405 may include a base station 110, such as an anchor base station, as described above in connection with 3. As shown, the IAB donor 405 may include a CU, which may perform access node controller (ANC) functions, AMF functions, etc. The CU may configure the DU of the IAB donor 405 and / or may configure one or more IAB nodes 410 (e.g., a mobile terminal (MT) and / or a DU of the IAB node 410) connected to the core network via the IAB donor 405. Thus, the CU of the IAB donor 405 may control and / or configure the entire IAB network connected to the core network via the IAB donor 405, for example, by using control messages and / or configuration messages (e.g., radio resource control (RRC) configuration messages, F1 Application Protocol (F1AP) messages, etc.). The IAB node may act as a layer 2 relay for traffic transmitted via the IAB network configured or managed by the CU.

[0066] The CU (associated with the IAB donor or gNB) can perform RRC layer functions and Packet Data Convergence Protocol (PDCP) functions. The DU can act as a scheduling node to schedule child nodes of the network node associated with the DU. For example, the DU can perform radio link control (RLC), medium access control (MAC), and physical (PHY) layer functions.

[0067] like Figure 4As further shown, the IAB network may include IAB nodes 410 (illustrated as IAB-node 1, IAB-node 2, and IAB-node 3) connected to the core network via an IAB donor 405. As shown, the IAB nodes 410 may include MT functionality (sometimes also referred to as UE functionality (UEF)) and may include DU functionality (sometimes also referred to as access node functionality (ANF)). The MT functionality of an IAB node 410 (e.g., a child node) may be controlled and / or scheduled by another IAB node 410 (e.g., a parent node of the child node) and / or by the IAB donor 405. The DU functionality of an IAB node 410 (e.g., a parent node) may control and / or schedule other IAB nodes 410 (e.g., a child node of the parent node) and / or UE 120. Therefore, the DU may be referred to as a scheduling node or scheduling component, and the MT may be referred to as a scheduled node or scheduled component. In some aspects, the IAB donor 405 may include DU functionality instead of MT functionality. That is, IAB donor 405 may configure, control, and / or schedule communications of IAB node 410 and / or UE 120. UE 120 may include only MT functionality and not DU functionality. That is, communications of UE 120 may be controlled and / or scheduled by IAB donor 405 and / or IAB node 410 (e.g., a parent node of UE 120).

[0068] When a first node controls and / or schedules communications for a second node (e.g., when the first node provides DU functionality for the MT functionality of the second node), the first node may be referred to as the parent node of the second node, and the second node may be referred to as the child node of the first node. The child node of the second node may be referred to as the grandchild node of the first node. Thus, the DU functionality of the parent node may control and / or schedule communications for the child node of the parent node. The parent node may be the IAB donor 405 or the IAB node 410, and the child node may be the IAB node 410 or the UE 120. Communications of the MT functionality of the child node may be controlled and / or scheduled by the parent node of the child node.

[0069] like Figure 4 As further shown in FIG, the link between UE 120 (e.g., having only MT functionality but not DU functionality) and IAB donor 405, or the link between UE 120 and IAB node 410, may be referred to as an access link 415. Access link 415 may be a wireless access link that provides UE 120 with radio access to the core network via IAB donor 405 and optionally via one or more IAB nodes 410. Thus, Figure 4 The network shown may be referred to as a multi-hop network or a wireless multi-hop network.

[0070] like Figure 4As further shown in FIG, the link between an IAB donor 405 and an IAB node 410 or between two IAB nodes 410 may be referred to as a backhaul link 420. The backhaul link 420 may be a wireless backhaul link that provides radio access to the core network to the IAB node 410 via the IAB donor 405 and, optionally, via one or more other IAB nodes 410. In an IAB network, network resources (e.g., time resources, frequency resources, spatial resources, etc.) for wireless communication may be shared between the access link 415 and the backhaul link 420. In some aspects, the backhaul link 420 may be a primary backhaul link or a secondary backhaul link (e.g., a backup backhaul link). In some aspects, the secondary backhaul link may be used if the primary backhaul link fails, becomes congested, becomes overloaded, etc. For example, if the primary backhaul link between IAB-node 2 and IAB-node 1 fails, the backup link 425 between IAB node 2 and IAB node 3 may be used for backhaul communications. As used herein, “node” or “wireless node” may refer to either the IAB donor 405 or the IAB node 410 .

[0071] As mentioned above, Figure 4 are provided as examples. Other examples may differ from the reference Figure 4 The content described.

[0072] Figure 5 is a diagram illustrating an example 500 of resource types in an IAB network according to the present disclosure.

[0073] In an IAB network, time domain resources (sometimes referred to as time resources) can be configured as downlink-only, uplink-only, flexible, or unavailable (e.g., NA). For example, time domain resources can be configured via DU cell resource configuration, such as gNB-DU cell resource configuration, as in conjunction with Figure 6 Described in more detail. When a time resource is configured as downlink-only for a wireless node, the time resource may only be used for downlink communications of the wireless node, not uplink communications. Similarly, when a time resource is configured as uplink-only for a wireless node, the time resource may only be used for uplink communications of the wireless node, not downlink communications. When a time resource is configured as flexible for a wireless node, the time resource may be used for both downlink and uplink communications of the wireless node. When a time resource is configured as unavailable for a wireless node, the time resource cannot be used for any communications of the wireless node.

[0074] Examples of downlink communications include synchronization signal blocks (SSBs) (cell-defined SSBs (CD-SSBs) and non-CD-SSBs), channel state information reference signals (CSI-RSs), physical downlink control channel (PDCCH) communications, physical downlink shared channel (PDSCH) communications, and / or similar communications. Examples of uplink communications include physical random access channel (PRACH) communications, physical uplink control channel (PUCCH) communications, physical uplink shared channel (PUSCH) communications, sounding reference signals (SRSs), and the like.

[0075] In an IAB network, time resources configured as downlink-only, uplink-only, or flexible can also be configured as hard resources or soft resources. When a time resource is configured as a hard resource for a wireless node, the time resource is always available for communications by the wireless node. For example, a hard downlink-only time resource is always available for downlink-only communications by a wireless node, a hard uplink-only time resource is always available for uplink-only communications by a wireless node, and a hard flexible time resource is always available for both uplink and downlink communications by a wireless node.

[0076] When a time resource is configured as a soft resource for a wireless node, the availability of the time resource is controlled by the wireless node's parent node. For example, the parent node may indicate (e.g., explicitly or implicitly) whether the soft time resource is available for communication by the wireless node. Thus, the soft time resource may be in one of two states: a schedulable state (e.g., when the soft time resource is available for scheduling and / or communication by the wireless node) and an unschedulable state (e.g., when the soft time resource is unavailable for scheduling and communication by the wireless node).

[0077] For example, when the parent node of a wireless node indicates that only soft downlink time resources are available, only soft downlink time resources can be used for downlink communications of the wireless node. Similarly, when the parent node of a wireless node indicates that only soft uplink time resources are available, only soft uplink time resources can be used for uplink communications of the wireless node. When the parent node of a wireless node indicates that soft flexible time resources are available, only soft flexible time resources can be used for uplink and downlink communications of the wireless node.

[0078] As an example, and as shown in reference numeral 505, a time resource can be configured as a hard resource for a child node and can be configured to be unavailable to the child node's parent node. In this case, the parent node cannot use the time resource for communication, but the child node can schedule communications in the time resource and / or use the time resource for communication. This configuration can reduce interference between the parent node and the child node, can reduce scheduling conflicts between the parent node and the child node, etc.

[0079] As another example, and as shown at 510, a time resource may be configured as unavailable to a child node and may be configured as a hard resource, a soft resource, or unavailable to a parent node (e.g., depending on network configuration, network conditions, configuration of the parent node's parent, etc.). In this case, the child node cannot schedule communications in the time resource and cannot communicate using the time resource.

[0080] As another example, and as shown by reference numeral 515, the time resource can be configured as a soft resource for the child node and can be configured as a hard resource, a soft resource, or unavailable for the parent node (e.g., depending on the network configuration, network conditions, parent node configuration of the parent node, etc.). In this case, the child node cannot use the time resource for scheduling or communication unless the child node receives an indication (e.g., a release indication) from the parent node (e.g., explicitly or implicitly) that the time resource is available (i.e., released) for use by the child node. If the child node receives such an indication, the child node can schedule communications in the time resource and / or use the time resource for communication.

[0081] As mentioned above, Figure 5 are provided as examples. Other examples are possible and may differ from the reference Figure 5 The content described.

[0082] Figure 6 FIG600 is a diagram illustrating example DU cell resource configuration for IAB according to the present disclosure. Example 600 includes an IAB-donor CU. The IAB donor CU may be associated with a gNB. The IAB donor CU may handle resource configuration for the parent DU and the IAB node. Thus, the IAB-donor CU may accommodate half-duplex constraints of the parent DU, the IAB node, and / or other nodes of the IAB network.

[0083] The IAB-donor CU may provide resource configuration via a cell resource configuration, as indicated by "gNB-DU cell resource configuration". In some aspects, as indicated by reference numeral 605, the cell resource configuration may be cell-specific. For example, the IAB-donor CU may provide a corresponding cell resource configuration for each cell served by the DU. The cell resource configuration may indicate the cell resource configuration relative to the cell resource configuration. Figure 5 at least a portion of said information.

[0084] The term "cell" may refer to a logical communication entity used to communicate with a base station (e.g., via a carrier) and may be associated with an identifier used to distinguish adjacent cells operating via the same or different carriers. In some examples, a cell may support different services and / or device types (e.g., MTC, narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and others). In some cases, the term "cell" may refer to a portion of the geographic coverage area (e.g., a sector) on which the logical entity operates. A cell may be referred to as "served by a DU" if the DU handles the scheduling of communications via the cell.

[0085] A cell may have a cell global identifier (CGI), such as an NR CGI (NCGI). The NCGI uniquely identifies a cell. The NCGI includes a public land mobile network (PLMN) identifier and an NR cell identifier. The PLMN identifier (which may include 24 bits) may include an MCC (e.g., 12 bits) and an MNC (e.g., 12 bits). The NCI (e.g., 36 bits in 5G) may include a gNB identifier (e.g., the leftmost 22 to 32 bits) and a local cell identifier (e.g., the remaining bits of the NCI). The gNB may be unique within a gNB and may be common to all cells served by the gNB (e.g., all IAB-donor DUs and all IAB-node DUs) with one IAB-donor CU. Equivalently, the PLMN and gNB IDs may globally identify the gNB.

[0086] As mentioned above, Figure 6 are provided as examples. Other examples are possible and may differ from the reference Figure 6 The content described.

[0087] Figure 7 is a diagram illustrating an example 700 of radio access network (RAN) sharing for IAB according to the present disclosure.

[0088] like Figure 7As shown, in a RAN sharing scenario, there may be two CUs: IAB-donor CU1 (CU1 for short) and gNB CU2 (CU2 for short). CU1 may be associated with an enhanced gNB supporting IAB functionality. CU2 may be associated with an access network gNB or a gNB supporting IAB. CU2 may treat the parent DU and the IAB-node DU (shown as DU2) as wireline DUs. In other words, in some cases, CU2 may be unaware that the DUs of example 700 are part of an IAB network and associated with a wireless backhaul. For example, CU2 may communicate with the parent DU and the IAB-node DU based, at least in part, on the F1-control (F1-C) protocol or the RRC protocol in the Internet Protocol (IP) layer. In some aspects, CU1 and CU2 may be associated with different networks, such as different PLMNs or different non-public networks (NPNs). In some aspects, CU1 and CU2 may be associated with the same network, such as the same PLMN or the same NPN. In some aspects, CU1 and CU2 may be associated with different mobile network operators. In some aspects, the parent DU of an IAB node may be associated with the IAB-donor CU1. For example, the parent DU may be implemented by a gNB associated with the IAB-donor CU1. In some aspects, the parent DU of an IAB node may be associated with the parent node of the IAB node.

[0089] In some aspects, one cell may be associated with one CU (e.g., IAB-donor CU1), and another cell associated with another CU (e.g., gNB-CU2) may be served on the same physical resources (e.g., same antenna, same transmit or receive resources, same network node, etc.). In some aspects, the same cell may serve the children of both CUs. In this example, the cell may be associated with multiple NCIs (but may still have a unique NCGI).

[0090] CU1 can provide cell resource configuration for the parent DU and IAB-node because CU1 supports IAB functionality. Therefore, CU1 can adapt to the half-duplex constraints of the parent DU and / or IAB node. However, if the IAB node is associated with a DU associated with two or more different CUs (such as CU1 and CU2 of Example 700), the cell associated with the first CU may cause interference to the cell associated with the second CU. For example, an IAB node may be associated with a RAN sharing configuration and may be associated with two or more CUs. Therefore, if the IAB donor CU is unaware that the IAB node is associated with DUs associated with multiple different CUs, the IAB donor CU may provide cell resource configuration that causes interference between cells associated with DUs associated with different CUs. This interference may reduce throughput, cause radio link failure, and require active interference mitigation, thereby consuming network resources.

[0091] Some of the techniques and apparatus described herein provide signaling to enable an IAB node to indicate to an IAB donor CU associated with the IAB node that the IAB node is associated with one or more cells or DUs associated with multiple CUs. Thus, the IAB donor CU can provide a cell resource configuration that takes into account one or more cells or DUs associated with multiple CUs. By providing a cell resource configuration that takes into account one or more cells or DUs associated with multiple CUs, the IAB donor CU can reduce interference, improve communication efficiency, and increase utilization of network resources.

[0092] As mentioned above, Figure 7 are provided as examples. Other examples may differ from the reference Figure 7 The content described.

[0093] Figure 8 is a diagram illustrating an example 800 of signaling associated with a DU indicating to an IAB donor CU that a network node is associated with a cell or with multiple CUs according to the present disclosure. As shown, example 800 includes a network node, an IAB donor CU1 (hereinafter referred to as CU1), and a gNB CU2 (hereinafter referred to as CU2). The network node may include, for example Figure 7 IAB node. IAB donor CU1 may include Figure 7 For example, IAB donor CU1 can oversee resource management of IAB. gNB CU2 can include Figure 7 For example, gNB CU2 can use the IAB network managed by IAB donor CU1 for service transmission.

[0094] In some aspects, CU2 may be an IAB donor CU. In some aspects, a network node may provide DUs associated with CU1 and DUs associated with CU2. In some aspects, the network node may be an IAB node, such as an IAB donor DU associated with CU1. In some aspects, the network node may have a signaling connection with CU1. For example, the signaling connection may be associated with the F1-C protocol or the RRC protocol, etc. In some aspects, the network node may have a signaling connection with CU2. For example, the signaling connection may be associated with the F1-C protocol or the RRC protocol, etc.

[0095] like Figure 8As shown and indicated by reference numeral 810, in some aspects, CU2 may provide configuration information of a cell to a network node. For example, in some aspects, the cell may be configured by CU2. If the cell is configured by CU2, the cell may be associated with an identifier associated with CU2, such as an NCI carrying an identifier of a gNB associated with gNB CU2. In some aspects, the cell may be configured by CU1. If the cell is configured by CU1, the network node may receive the configuration information of the cell from CU1. In some aspects, the cell may be associated with a time division duplex (TDD) mode. For example, the cell may be a TDD cell. In some aspects, the cell may be associated with a frequency division duplex (FDD) mode. For example, the cell may be an FDD cell.

[0096] In some aspects, the cell may be associated with an identifier associated with CU1. For example, the cell may have an NCI that carries the identifier of CU1. In this case, the cell may be deactivated by CU1 or access may be prohibited to child nodes that select the PLMN associated with CU1. In some aspects, the cell may provide a connection to CU2 ( Figure 8 The child node may be a UE or an IAB node.

[0097] The configuration information may include, for example, a transmission configuration of a CD-SSB associated with a cell, an IAB SSB transmission configuration (STC) configuration of the cell, a random access channel (RACH) configuration of the cell, a CSI-RS configuration of the cell, a scheduling request (SR) configuration of the cell, a PDCCH configuration of the cell, a subcarrier spacing transmitted by the cell, multiplexing information for communications with a second cell and a first cell served by a parent node or a child node of the network node, a combination thereof, or similar information.

[0098] In some aspects, CU1 may send a request to the parent node of the network node (e.g., Figure 6 DU cell resource configuration is described in more detail below in conjunction with reference numeral 830. The parent node of the network node may communicate with the network node based at least in part on the configuration information, as described elsewhere herein.

[0099] As shown in reference numeral 820, the network node may provide information indicating a cell served by the network node and associated with CU2 to CU1. For example, the network node may report an indication that a cell served by the network node is associated with CU2. In some aspects, the network node may provide at least a portion of the configuration information described with reference to reference numeral 810. In some aspects, the network node may provide information indicating a cell based at least in part on a cell activated by CU2. For example, as described in more detail below, CU2 may activate the cell, and the network node may provide information indicating the cell based at least in part on CU2 activating the cell.

[0100] As shown with reference to reference numeral 830, CU1 may provide a DU cell resource configuration for the cell. For example, CU1 may determine the DU cell resource configuration of the cell and may send information indicating the DU cell resource configuration to the network node. In some aspects, CU1 may determine the DU cell resource configuration based at least in part on configuration information associated with the cell, such as the configuration information described in conjunction with reference to reference numeral 810. In some aspects, CU1 may determine the DU cell resource configuration so as to accommodate (e.g., not violate) half-duplex constraints of the network node and / or other nodes of the IAB network. Therefore, the DU cell resource configuration may reduce interference in the IAB network and may improve the throughput of the IAB network.

[0101] In some aspects, DU cell resource configuration may include combining Figure 5 At least a portion of the information describing the cell resource configuration of the cell. For example, the DU cell resource configuration may be a gNB DU cell resource configuration. In some aspects, if the cell is associated with FDD mode, the DU cell resource configuration may include a configuration for uplink communication and a configuration for downlink communication. In some aspects, the DU cell resource configuration may indicate the availability of communication resources of the cell (e.g., whether the communication resources are available, unavailable, or conditionally available). In some aspects, the DU cell resource configuration may indicate a direction associated with the communication resources of the cell (e.g., whether the resources are uplink resources, downlink resources, or flexible resources). In some aspects, the DU cell resource configuration may indicate a cell direction associated with the cell (e.g., whether the cell is an uplink cell, a downlink cell, or a bidirectional cell). Communication resources may be time resources, frequency resources, and / or spatial resources.

[0102] In some aspects, the DU cell resource configuration may be defined at a per-time slot granularity. For example, the DU cell resource configuration may indicate the resource configuration for a cell and a time slot. In some aspects, the DU cell resource configuration may be defined at a per-symbol granularity. For example, the DU cell resource configuration may indicate the resource configuration for a symbol of a cell and a time slot. In some aspects, the DU cell resource configuration may be defined at a per-symbol group granularity. For example, the DU cell resource configuration may indicate the resource configuration for a group of one or more symbols (e.g., symbols associated with the same uplink / downlink direction) within a cell and a time slot.

[0103] In some aspects, DU cell resource configuration may be defined at a per-frequency granularity. For example, a DU cell resource configuration may be defined for a carrier associated with a first cell. As another example, a DU cell resource configuration may be defined at a per-bandwidth portion granularity. As yet another example, a DU cell resource configuration may be defined per resource block of a cell or per group of resource blocks of a cell.

[0104] In some aspects, a DU cell resource configuration may be associated with a spatial region. For example, a DU cell resource configuration may be associated with a beam direction (e.g., a quasi-co-location parameter set indicating the beam direction). As another example, a DU cell resource configuration may be associated with an SSB region (e.g., a region associated with a specific SSB).

[0105] In some aspects, a DU cell resource configuration may be associated with a node. For example, a DU cell resource configuration may be specific to a sub-node served by the cell (eg, a sub-node of a network node).

[0106] As indicated by reference numeral 840, CU2 may activate the cell. For example, CU2 may provide signaling via an F1-C or RRC interface to cause the network node to activate the cell. In some aspects, CU2 may activate the cell before CU1 provides the DU cell resource configuration. For example, CU2 may activate the cell, and then CU1 may provide the DU cell resource configuration based at least in part on CU2's activation of the cell.

[0107] As indicated by reference numeral 850, the network node may provide an indication of the activation status of the cell to CU1. For example, the network node may report the activation of the cell to CU1. In some aspects, the network node may provide the indication of the activation status based at least in part on CU2 activating the cell. In some aspects, the network node may provide the indication of the activation status of the cell before receiving the DU cell resource configuration. For example, the network node may provide the indication of the activation status of the cell based at least in part on the cell being activated by CU2, and CU1 may provide the DU cell resource configuration based at least in part on the indication of the activation status of the cell.

[0108] As indicated by reference numeral 860, the network node may communicate on the cell based at least in part on the DU cell resource configuration. For example, a DU of the network node serving the cell may schedule communications on the cell based on the DU cell resource configuration. More specifically, the DU of the network node may schedule communications based on the availability, direction, and / or cell direction indicated by the DU cell resource configuration.

[0109] By determining the DU cell resource configuration based at least in part on the cell associated with CU2, CU1 can improve the utilization of communication resources of the network node and / or nodes associated with the network node (e.g., parent nodes, child nodes, or other upstream or downstream nodes). Therefore, throughput can be increased, interference can be reduced, and the efficiency of the IAB network can be improved.

[0110] As mentioned above, Figure 8 are provided as examples. Other examples may differ from the reference Figure 8 The content described.

[0111] Figure 9 is a diagram illustrating an exemplary process 900, for example, performed by a network node, according to various aspects of the present disclosure. The exemplary process 900 is a diagram illustrating an exemplary process 900 performed by a network node (e.g., a non-anchor base station 345, an IAB node 410, Figure 6 IAB node, Figure 7 IAB node, Figure 8 A network node, or one or more DUs described herein, performs operations associated with cell reporting for IAB RAN sharing.

[0112] like Figure 9 As shown, in some aspects, process 900 may include sending information indicating a cell served by a network node and associated with another CU to an IAB donor CU (block 910). For example, the network node (e.g., using a sending component 1104, such as Figure 11 As shown), information indicating cells served by the network node and associated with another CU may be sent to the IAB donor CU as described above.

[0113] like Figure 9 As further shown in FIG. 1 , in some aspects, process 900 may include receiving a DU cell resource configuration for a cell from an IAB donor CU (block 920). For example, a network node (e.g., using receiving component 1102, such as Figure 11 The DU cell resource configuration is also referred to herein as a cell resource configuration or a gNB-DU cell resource configuration.

[0114] Process 900 may include additional aspects, such as any aspect described below, alone or in any combination, and / or be related to one or more other methods described elsewhere herein.

[0115] In a first aspect, process 900 includes communicating on a cell based at least in part on a DU cell resource configuration.

[0116] In a second aspect, alone or in combination with the first aspect, the network node is an IAB node.

[0117] In a third aspect alone or in combination with the first and second aspects, the network node is an IAB donor DU.

[0118] In the fourth aspect alone or in combination with one or more of the first to third aspects, the IAB donor CU is a first IAB donor CU and the other CU is a second IAB donor CU.

[0119] In a fifth aspect alone or in combination with one or more of the first to fourth aspects, the IAB donor CU is associated with a first network and the other CUs are associated with a second network.

[0120] In a sixth aspect alone or in combination with one or more of the first to fifth aspects, the IAB donor CU is associated with resource management of an IAB network including the network node and the IAB donor CU, and traffic associated with other CUs is transmitted through the IAB network.

[0121] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, the information indicating the cell is transmitted via a signaling connection between the IAB donor CU and the network node, and the signaling connection is associated with at least one of the F1 control protocol or the radio resource control protocol.

[0122] In the eighth aspect alone or in combination with one or more of the first to seventh aspects, the signaling connection between the other CU and the network node is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0123] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 900 includes providing a service to a child node of a network node, wherein the child node is associated with a radio resource control connection to another CU.

[0124] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the child node is a UE.

[0125] In the eleventh aspect alone or in combination with one or more of the first to tenth aspects, the child node is an IAB node.

[0126] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the cell is associated with a new radio cell identifier identifying the other CU.

[0127] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, a cell is associated with a new radio cell identifier identifying the IAB donor CU, and the cell is deactivated by the IAB donor CU or selection of a subnode of a public land mobile network associated with the IAB donor CU is prohibited for access.

[0128] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 900 includes receiving an indication from the other CU that the cell is activated; and or communicating on the cell based at least in part on the DU cell resource configuration and at least in part on receiving the indication.

[0129] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, sending the information indicating the cell to the IAB donor CU is based at least in part on receiving the indication that the cell is activated from the other CU.

[0130] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, process 900 includes sending information indicating an activation status of the cell to the IAB donor CU based at least in part on receiving the indication.

[0131] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, receiving the DU cell resource configuration is based at least in part on an indication from the other CU that the cell is activated.

[0132] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 900 includes receiving configuration information of the cell from the other CU; and sending at least a portion of the configuration information to the IAB donor CU, wherein the DU cell resource configuration is at least partially based on the configuration information.

[0133] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the cell is associated with TDD mode.

[0134] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the cell is associated with FDD mode.

[0135] In the 21st aspect, alone or in combination with one or more of the first to 20th aspects, the DU cell resource configuration indicates a configuration of uplink communication on the cell and a configuration of downlink communication on the cell.

[0136] In the 22nd aspect, alone or in combination with one or more of the 1st to 21st aspects, the DU cell resource configuration indicates availability of communication resources of the cell.

[0137] In the twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the DU cell resource configuration indicates a direction of communication resources of the cell.

[0138] In the twenty-fourth aspect, alone or in combination with one or more of the first to twenty-third aspects, the DU cell resource configuration indicates a cell direction of the cell.

[0139] In the twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the DU cell resource configuration is defined at a per-time slot granularity.

[0140] In the twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the DU cell resource configuration is defined at a per-symbol granularity.

[0141] In the twenty-seventh aspect, alone or in combination with one or more of the first to twenty-sixth aspects, the DU cell resource configuration is defined at a per-symbol-group granularity.

[0142] In the 28th aspect, alone or in combination with one or more of the first to 27th aspects, the DU cell resource configuration is defined for a first carrier associated with the cell.

[0143] In the twenty-ninth aspect, alone or in combination with one or more of the first to twenty-eighth aspects, the DU cell resource configuration is defined at a granularity per bandwidth portion.

[0144] In the 30th aspect, alone or in combination with one or more of the first to twenty-ninth aspects, the DU cell resource configuration is defined at a per-resource block granularity or a per-resource block group granularity.

[0145] In the thirty-first aspect, alone or in combination with one or more of the first to thirtieth aspects, the DU cell resource configuration is associated with a spatial region.

[0146] In the 32nd aspect, alone or in combination with one or more of the 1st to 31st aspects, the DU cell resource configuration is specific to a subnode served on the cell.

[0147] In a thirty-third aspect, alone or in combination with one or more of the first to thirty-second aspects, process 900 comprises communicating with a parent node of the network node based at least in part on configuration information associated with the cell.

[0148] although Figure 9 Example blocks in process 900 are shown, but in some aspects process 900 may include Figure 9 More blocks, fewer blocks, different blocks, or a different arrangement of blocks than those depicted in the process 900 may be used. Additionally or alternatively, two or more blocks of process 900 may be performed in parallel.

[0149] Figure 10 is a diagram illustrating an exemplary process 1000 performed, for example, by an IAB donor CU according to the present disclosure. The exemplary process 1000 is an example in which an IAB donor CU (e.g., anchor base station 335, IAB donor 405, Figure 6 IAB donor CU, Figure 7 IAB donor CU1 or Figure 8 The IAB donor CU1) performs operations associated with integrated access and backhaul radio access network shared cell reporting.

[0150] like Figure 10 As shown, in some aspects, process 1000 may include receiving information from a network node indicating a cell served by the network node and associated with another CU (block 1010). For example, an IAB donor CU (e.g., using Figure 12 The receiving component 1202) can receive information from a network node indicating a cell served by the network node and associated with another CU, as described above.

[0151] like Figure 10 As further shown, in some aspects, process 1000 may include sending a DU cell resource configuration of a cell to a network node (block 1020). For example, an IAB donor CU (eg, using sending component 1204, such as Figure 12 As shown) can send the DU cell resource configuration of the cell to the network node, as described above.

[0152] Process 1000 may include additional aspects, such as any aspect described below, alone or in any combination, and / or be related to one or more other methods described elsewhere herein.

[0153] In a first aspect, the network node is an IAB node.

[0154] In the second aspect alone or in combination with the first aspect, the network node is an IAB donor DU.

[0155] In a third aspect alone or in combination with one or more of the first and second aspects, the IAB donor CU is a first IAB donor CU and the other CU is a second IAB donor CU.

[0156] In the fourth aspect alone or in combination with one or more of the first to third aspects, the IAB donor CU is associated with a first network and the other CUs are associated with a second network.

[0157] In the fifth aspect alone or in combination with one or more of the first to fourth aspects, the IAB donor CU is associated with resource management of an IAB network including the network node and the IAB donor CU, and traffic associated with the other CUs is transmitted through the IAB network.

[0158] In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, the information indicating the cell is transmitted via a signaling connection between the IAB donor CU and the network node, and the signaling connection is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0159] In the seventh aspect alone or in combination with one or more of the first to sixth aspects, the signaling connection between the other CU and the network node is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0160] In the eighth aspect alone or in combination with one or more of the first to seventh aspects, the cell is associated with a new radio cell identifier identifying the other CU.

[0161] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the cell is associated with a new radio cell identifier identifying the IAB donor CU, and the cell is deactivated by the IAB donor CU, or selection of a subnode of a public land mobile network associated with the IAB donor CU is prohibited for access.

[0162] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the cell is activated by the other CU.

[0163] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, receiving the information indicating the cell to the IAB donor CU is based at least in part on the cell being activated by the other CU.

[0164] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the process 1000 includes receiving information indicating an activation status of the cell from the network node.

[0165] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, sending the DU cell resource configuration is at least partially based on the cell being activated by the other CU.

[0166] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 1000 comprises receiving configuration information of the cell from the network node, wherein the DU cell resource configuration is based at least in part on the configuration information.

[0167] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the cell is associated with a TDD mode.

[0168] In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the cell is associated with FDD mode.

[0169] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the DU cell resource configuration indicates a configuration of uplink communication on the cell and a configuration of downlink communication on the cell.

[0170] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the DU cell resource configuration indicates availability of communication resources of the cell.

[0171] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the DU cell resource configuration indicates a direction of communication resources of the cell.

[0172] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the DU cell resource configuration indicates a cell direction of the cell.

[0173] In the 21st aspect, alone or in combination with one or more of the 1st to 20th aspects, the DU cell resource configuration is defined at a per-time slot granularity.

[0174] In the twenty-second aspect, alone or in combination with one or more of the first to twenty-first aspects, the DU cell resource configuration is defined at a per-symbol granularity.

[0175] In the twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the DU cell resource configuration is defined at a per-symbol-group granularity.

[0176] In the twenty-fourth aspect, alone or in combination with one or more of the first to twenty-third aspects, the DU cell resource configuration is defined for a first carrier associated with the cell.

[0177] In the twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the DU cell resource configuration is defined at a granularity per bandwidth portion.

[0178] In the twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the DU cell resource configuration is defined at a per-resource block granularity or a per-resource block group granularity.

[0179] In the twenty-seventh aspect, alone or in combination with one or more of the first to twenty-sixth aspects, the DU cell resource configuration is associated with a spatial region.

[0180] In the 28th aspect, alone or in combination with one or more of the first to 27th aspects, the DU cell resource configuration is specific to a subnode served on the cell.

[0181] In the twenty-ninth aspect, alone or in combination with one or more of the first to twenty-eighth aspects, process 1000 includes sending configuration information about the cell to a parent node of the network node.

[0182] although Figure 10 Example blocks in process 1000 are shown, but in some aspects process 1000 may include Figure 10 More blocks, fewer blocks, different blocks, or a different arrangement of blocks than those depicted in the process 1000 may be used. Additionally or alternatively, two or more blocks of process 1000 may be performed in parallel.

[0183] Figure 11 1 is a block diagram of an exemplary apparatus 1100 for wireless communication. Apparatus 1100 may be a network node, or a network node may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102 and a transmitting component 1104, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1100 may communicate with another apparatus 1106 (e.g., a UE, a base station, or another wireless communication device) using receiving component 1102 and transmitting component 1104. As further shown, apparatus 1100 may include, among other examples, a scheduling component 1108.

[0184] In some aspects, the apparatus 1100 may be configured to perform the Figures 3 to 8Additionally or alternatively, the apparatus 1100 may be configured to perform one or more of the processes described herein, such as Figure 9 In some aspects, Figure 11 The device 1100 and / or one or more components shown may include the above-mentioned Figure 2 Additionally or alternatively, Figure 11 One or more of the components shown above may be combined Figure 2 Additionally or alternatively, one or more of the components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0185] The receiving component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1106. The receiving component 1102 may provide the received communications to one or more other components of the apparatus 1100. In some aspects, the receiving component 1102 may perform signal processing (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the apparatus 1106. In some aspects, the receiving component 1102 may include the above-described components in combination with the receiving component 1102. Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described network nodes.

[0186] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106. In some aspects, one or more other components of the apparatus 1106 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the apparatus 1106. In some aspects, the transmitting component 1104 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) on ​​the generated communications and may transmit the processed signals to the apparatus 1106. In some aspects, the transmitting component 1104 may include the above-described components in conjunction with Figure 2 One or more antennas, demodulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.

[0187] Transmitting component 1104 can transmit information indicating cells served by the network node and associated with another CU to the IAB donor CU.Receiving component 1102 can receive a DU cell resource configuration of a cell from the IAB donor CU.

[0188] In some aspects, the scheduling component 1108, the sending component 1104, and / or the receiving component 1102 can communicate on the cell based at least in part on the DU cell resource configuration. In some aspects, the scheduling component 1108 can include the above-mentioned combination Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described base stations. In some aspects, a scheduling component 1108 can be associated with a DU.

[0189] In some aspects, scheduling component 1108 can also provide services to a child node of a network node, where the child node is associated with a radio resource control connection to another CU.

[0190] In some aspects, receiving component 1102 may receive an indication from the other CU that the cell is activated.

[0191] In certain aspects, scheduling component 1108, transmitting component 1104, and / or receiving component 1102 may communicate on the cell based at least in part on the DU cell resource configuration and at least in part on receiving the indication.

[0192] In some aspects, transmitting component 1104 may transmit information indicating an activation status of the cell to an IAB donor CU based at least in part on receiving the indication.

[0193] In some aspects, receiving component 1102 may receive configuration information of the cell from the other CU.

[0194] The transmitting component 1104 can transmit at least a portion of the configuration information to the IAB donor CU, wherein the DU cell resource configuration is based at least in part on the configuration information.

[0195] In some aspects, scheduling component 1108, transmitting component 1104, and / or receiving component 1102 may communicate with a parent node of the network node based at least in part on configuration information associated with the cell.

[0196] Figure 11 The number and arrangement of components shown in are provided as examples. Figure 11 There may be more components, fewer components, different components, or components arranged differently than those shown in FIG. Figure 11Two or more components shown in may be implemented in a single component, or Figure 11 A single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Figure 11 A set of (one or more) components shown in FIG can perform one or more functions, which are described as being Figure 11 Another set of components shown in .

[0197] Figure 12 1 is a block diagram of an exemplary apparatus 1200 for wireless communication. Apparatus 1200 may be an IAB donor CU, or an IAB donor CU may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202 and a transmitting component 1204, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1200 may communicate with another apparatus 1206 (e.g., a UE, a base station, or another wireless communication device) using receiving component 1202 and transmitting component 1204. As further shown, apparatus 1200 may include, among other examples, a configuration component 1208.

[0198] In some aspects, the apparatus 1200 may be configured to perform the Figures 3 to 8 Additionally or alternatively, the apparatus 1200 may be configured to perform one or more of the processes described herein, such as Figure 10 In some aspects, Figure 12 The device 1200 and / or one or more components shown may include the above-mentioned Figure 2 Additionally or alternatively, one or more components of the IAB donor CU described. Figure 12 One or more of the components shown above may be combined Figure 2 Additionally or alternatively, one or more of the components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0199] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1206. The receiving component 1202 may provide the received communications to one or more other components of the apparatus 1200. In some aspects, the receiving component 1202 may perform signal processing (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the apparatus 1206. In some aspects, the receiving component 1202 may include the above-described components in combination with the receiving component 1202. Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a base station are described.

[0200] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1206. In some aspects, one or more other components of the apparatus 1206 may generate communications and may provide the generated communications to the transmitting component 1204 for transmission to the apparatus 1206. In some aspects, the transmitting component 1204 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) on ​​the generated communications and may transmit the processed signals to the apparatus 1206. In some aspects, the transmitting component 1204 may include the above-described components in conjunction with Figure 2 One or more antennas, demodulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described base stations. In some aspects, the transmit component 1204 can be co-located with the receive component 1202 in a transceiver.

[0201] Receiving component 1202 can receive information from a network node indicating a cell served by the network node and associated with another CU.Sending component 1204 can send a DU cell resource configuration of the cell to the network node.

[0202] In some aspects, receiving component 1202 may receive information indicating an activation state of a cell from a network node. In some aspects, receiving component 1202 may receive configuration information of the cell from a network node, wherein the DU cell resource configuration is based at least in part on the configuration information.

[0203] In some aspects, the transmitting component 1204 or the configuring component 1208 may transmit configuration information about the cell to a parent node of the network node. In some aspects, the configuring component 1208 may include one or more antennas, a demodulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof.

[0204] Figure 12The number and arrangement of components shown in are provided as examples. Figure 12 There may be more components, fewer components, different components, or components arranged differently than those shown in FIG. Figure 12 Two or more components shown in may be implemented in a single component, or Figure 12 A single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Figure 12 A set of (one or more) components shown in FIG can perform one or more functions, which are described as being Figure 12 Another set of components shown in .

[0205] The following provides an overview of some aspects of the disclosure:

[0206] Aspect 1: A wireless communication method performed by a network node, comprising: sending information indicating a cell served by the network node and associated with another CU to an integrated access and backhaul (IAB) donor central unit (CU); and receiving a distributed unit (DU) cell resource configuration of the cell from the IAB donor CU.

[0207] Aspect 2: The method according to aspect 1 further comprises: communicating on the cell based at least in part on the DU cell resource configuration.

[0208] Aspect 3: The method according to one or more of the preceding aspects, wherein the network node is an IAB node.

[0209] Aspect 4: The method according to one or more of the preceding aspects, wherein the network node is an IAB donor DU.

[0210] Aspect 5: The method according to one or more of the preceding aspects, wherein the IAB donor CU is a first IAB donor CU and the other CU is a second IAB donor CU.

[0211] Aspect 6: The method according to one or more of the preceding aspects, wherein the IAB donor CU is associated with a first network and the other CUs are associated with a second network.

[0212] Aspect 7: The method according to one or more of the preceding aspects, wherein the IAB donor CU is associated with resource management of an IAB network including the network node and the IAB donor CU, and traffic associated with the other CUs is transmitted through the IAB network.

[0213] Aspect 8: A method according to one or more of the preceding aspects, wherein the information indicative of the cell is transmitted via a signaling connection between the IAB donor CU and the network node, and wherein the signaling connection is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0214] Aspect 9: The method according to one or more of the preceding aspects, wherein the signaling connection between the other CU and the network node is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0215] Aspect 10: The method according to one or more of the preceding aspects, further comprising providing services to a child node of the network node, wherein the child node is associated with a radio resource control connection to the other CU.

[0216] Aspect 11: The method according to aspect 10, wherein the child node is a UE.

[0217] Aspect 12: The method according to aspect 10, wherein the child node is an IAB node.

[0218] Aspect 13: The method according to one or more of the preceding aspects, wherein the cell is associated with a new radio cell identifier identifying the other CU.

[0219] Aspect 14: A method according to one or more of the preceding aspects, wherein the cell is associated with a new radio cell identifier identifying the IAB donor CU, and wherein the cell is deactivated by the IAB donor CU or is prohibited from selecting access by a subnode of a public land mobile network associated with the IAB donor CU.

[0220] Aspect 15: The method according to one or more of the preceding aspects further includes receiving an indication from the other CU that the cell is activated; and communicating on the cell based at least in part on the DU cell resource configuration and at least in part on receiving the indication.

[0221] Aspect 16: The method of aspect 15, wherein sending the information indicating the cell to the IAB donor CU is based at least in part on receiving the indication that the cell is activated from the other CU.

[0222] Aspect 17: The method according to aspect 15, further comprising: sending information indicating the activation status of the cell to the IAB donor CU based at least in part on receiving the indication.

[0223] Aspect 18: The method of aspect 15, wherein receiving the DU cell resource configuration is based at least in part on the indication from the other CU that the cell is activated.

[0224] Aspect 19: The method according to one or more of the preceding aspects further includes receiving configuration information of the cell from the other CU; and sending at least part of the configuration information to the IAB donor CU, wherein the DU cell resource configuration is at least partially based on the configuration information.

[0225] Aspect 20: The method according to one or more of the preceding aspects, wherein the cell is associated with a time division duplex (TDD) mode.

[0226] Aspect 21: The method according to one or more of the preceding aspects, wherein the cell is associated with a frequency division duplex (FDD) mode.

[0227] Aspect 22: The method according to aspect 21, wherein the DU cell resource configuration indicates a configuration of uplink communication on the cell and a configuration of downlink communication on the cell.

[0228] Aspect 23: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration indicates the availability of communication resources of the cell.

[0229] Aspect 24: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration indicates the direction of the communication resources of the cell.

[0230] Aspect 25: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration indicates a cell direction of the cell.

[0231] Aspect 26: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is defined at a per-time slot granularity.

[0232] Aspect 27: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is defined at a per-symbol granularity.

[0233] Aspect 28: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is defined at a per-symbol-group granularity.

[0234] Aspect 29: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is defined for a first carrier associated with the cell.

[0235] Aspect 30: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is defined at a granularity of each bandwidth portion.

[0236] Aspect 31: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is defined at a granularity of each resource block or a granularity of each resource block group.

[0237] Aspect 32: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is associated with a spatial region.

[0238] Aspect 33: The method according to one or more of the preceding aspects, wherein the DU cell resource configuration is specific to a sub-node served on the cell.

[0239] Aspect 34: The method according to one or more of the preceding aspects, further comprising: communicating with a parent node of the network node based at least in part on configuration information associated with the cell.

[0240] Aspect 35: A wireless communication method performed by an integrated billing and backhaul (IAB) donor central unit (CU), comprising: receiving information indicating a cell served by the network node and associated with another CU from a network node; and sending a distribution unit (DU) cell resource configuration of the cell to the network node.

[0241] Aspect 36: The method according to aspect 35, wherein the network node is an IAB node.

[0242] Aspect 37: The method according to any one of aspects 35-36, wherein the network node is an IAB Donor DU.

[0243] Aspect 38: The method of any one of aspects 35-37, wherein the IAB donor CU is a first IAB donor CU and the other CU is a second IAB donor CU.

[0244] Aspect 39: The method of any one of aspects 35-38, wherein the IAB donor CU is associated with a first network and the other CUs are associated with a second network.

[0245] Aspect 40: The method according to any one of aspects 35 to 39, wherein the IAB donor CU is associated with resource management of an IAB network including the network node and the IAB donor CU, and traffic associated with the other CUs is transmitted through the IAB network.

[0246] Aspect 41: The method according to any of aspects 35-40, wherein the information indicative of the cell is transmitted via a signaling connection between the IAB donor CU and the network node, and wherein the signaling connection is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0247] Aspect 42: The method according to any one of aspects 35-41, wherein the signaling connection between the other CU and the network node is associated with at least one of an F1 control protocol or a radio resource control protocol.

[0248] Aspect 43: The method according to any one of aspects 35-42, wherein the cell is associated with a new radio cell identifier identifying the other CU.

[0249] Aspect 44: A method according to any one of aspects 35-43, wherein the cell is associated with a new radio cell identifier identifying the IAB donor CU, and wherein the cell is deactivated by the IAB donor CU or selection of a subnode of a public land mobile network associated with the IAB donor CU is prohibited for access.

[0250] Aspect 45: The method according to any one of aspects 35-44, wherein the cell is activated by the other CU.

[0251] Aspect 46: The method of aspect 45, wherein receiving information indicating the cell to the IAB donor CU is based at least in part on the cell being activated by the other CU.

[0252] Aspect 47: The method according to aspect 46 further comprises: receiving information indicating the activation status of the cell from the network node.

[0253] Aspect 48: The method of aspect 45, wherein sending the DU cell resource configuration is based at least in part on the cell being activated by the other CU.

[0254] Aspect 49: The method according to any one of aspects 35-48 further comprises: receiving configuration information of the cell from the network node, wherein the DU cell resource configuration is based at least in part on the configuration information.

[0255] Aspect 50: The method according to any one of aspects 35-49, wherein the cell is associated with a time division duplex (TDD) mode.

[0256] Aspect 51: The method according to any one of aspects 35-50, wherein the cell is associated with a frequency division duplex (FDD) mode.

[0257] Aspect 52: The method according to aspect 51, wherein the DU cell resource configuration indicates a configuration of uplink communication on the cell and a configuration of downlink communication on the cell.

[0258] Aspect 53: The method according to any one of aspects 35-52, wherein the DU cell resource configuration indicates availability of communication resources of the cell.

[0259] Aspect 54: The method according to any one of aspects 35-53, wherein the DU cell resource configuration indicates the direction of the communication resources of the cell.

[0260] Aspect 55: The method according to any one of aspects 35-54, wherein the DU cell resource configuration indicates a cell direction of the cell.

[0261] Aspect 56: The method according to any one of aspects 35-55, wherein the DU cell resource configuration is defined at a per-time slot granularity.

[0262] Aspect 57: The method according to any one of aspects 35-56, wherein the DU cell resource configuration is defined at a per-symbol granularity.

[0263] Aspect 58: The method according to any one of aspects 35-57, wherein the DU cell resource configuration is defined at a per-symbol group granularity.

[0264] Aspect 59: The method according to any one of aspects 35-58, wherein the DU cell resource configuration is defined for a first carrier associated with the cell.

[0265] Aspect 60: The method according to any one of aspects 35-59, wherein the DU cell resource configuration is defined at a granularity of each bandwidth portion.

[0266] Aspect 61: The method according to any one of aspects 35-0, wherein the DU cell resource configuration is defined at a granularity of each resource block or a granularity of each resource block group.

[0267] Aspect 62: The method according to any one of aspects 35-61, wherein the DU cell resource configuration is associated with a spatial region.

[0268] Aspect 63: The method according to any one of aspects 35-62, wherein the DU cell resource configuration is specific to a sub-node served on the cell.

[0269] Aspect 64: The method according to any one of aspects 35-63 further comprises: sending configuration information about the cell to a parent node of the network node.

[0270] Aspect 65: An apparatus for performing wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method described in any one of Aspects 1 to 64.

[0271] Aspect 66: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of aspects 1 to 64.

[0272] Aspect 67: An apparatus for wireless communication, comprising at least one component for performing the method described in one or more of aspects 1 to 64.

[0273] Aspect 68: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1 to 64.

[0274] Aspect 69: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects 1 to 64.

[0275] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.

[0276] The term "component" as used herein is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Software should be broadly interpreted as representing instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, programs and / or functions, etc., whether referring to software, firmware, middleware, microcode, hardware description language or other means. The processor used herein is implemented with hardware and / or a combination of hardware and software. Obviously, the systems and / or methods described herein can be implemented with different forms of hardware and / or a combination of hardware and software. The actual dedicated control hardware or software code for implementing these systems and / or methods is not limited to these aspects. Therefore, the operation and performance of the systems and / or methods are described herein without reference to specific software codes. It should be understood that software and hardware can be designed to implement the systems or methods at least in part based on the description herein.

[0277] As used herein, satisfying a threshold may refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, or not equal to a threshold, etc., depending on the context.

[0278] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of each aspect. In fact, many of these features can be combined in a manner not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below can be directly subordinate to a claim, the disclosure of each aspect includes the combination of each dependent claim and each other claim in the claim set. As used herein, the phrase "at least one" referring to a series of items refers to any combination of these items, including single members. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination of multiple elements with these elements (such as aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc, or any other order of a, b and c).

[0279] Unless explicitly stated, any element, action or instruction used herein should not be interpreted as critical or necessary. In addition, the articles "a" and "an" used herein are intended to include one or more items and can be used interchangeably with "one or more". In addition, the article "the" used herein is intended to include one or more items related to the article "the" and can be used interchangeably with "one or more". In addition, the terms "set" and "group" used herein are intended to include one or more items (for example, related items, unrelated items, or a combination of related and unrelated items) and can be used interchangeably with "one or more". If only one item is intended to be used, the phrase "only one" or similar language is used. In addition, the terms "having", "containing", "having" etc. used herein are intended to be open terms. In addition, unless otherwise explicitly stated, the phrase "based on" is intended to mean "based at least in part on". In addition, as used herein, unless otherwise explicitly stated (for example, if used in combination with "or" or "only one"), the term "or" used herein is intended to be included when used in series and can be used interchangeably with "and / or".

Claims

1. A network node for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory and configured to: sending information indicating a cell served by the network node and associated with another CU to an integrated access and backhaul IAB donor central unit CU; and A distributed unit (DU) cell resource configuration for the cell is received from an IAB donor CU, wherein the cell is associated with a new radio cell identifier identifying the IAB donor CU, and wherein the cell is deactivated by the IAB donor CU or is prohibited from selecting a subnode of a public land mobile network associated with the IAB donor CU for access.

2. The network node of claim 1 , wherein the one or more processors are further configured to: Communicating on the cell based at least in part on the DU cell resource configuration. The network node according to claim 1 , wherein the network node is an IAB node or an IAB donor DU. 4 . The network node of claim 1 , wherein the IAB donor CU is a first IAB donor CU and the another CU is a second IAB donor CU. 5 . The network node of claim 1 , wherein the IAB donor CU is associated with resource management of an IAB network including the network node and the IAB donor CU, and wherein traffic associated with the another CU is transmitted through the IAB network.

6. The network node of claim 1 , wherein the information indicative of the cell is transmitted via a signaling connection between the IAB donor CU and the network node, and wherein the signaling connection is associated with at least one of: F1 Control Protocol, or a radio resource control protocol, and wherein the signaling connection between the further CU and the network node is associated with at least one of: the F1 control protocol, or The radio resource control protocol.

7. The network node of claim 1 , wherein the one or more processors are further configured to: A service is provided to a child node of the network node, wherein the child node is associated with a radio resource control connection to the other CU.

8. The network node according to claim 1, wherein the cell is associated with a new radio cell identifier identifying the other CU.

9. The network node of claim 1 , wherein the one or more processors are further configured to: receiving an indication from the other CU that the cell is activated, wherein sending the information indicating the cell to the IAB donor CU is based at least in part on receiving the indication from the other CU that the cell is activated; and Communicating on the cell based at least in part on the DU cell resource configuration and at least in part on receiving the indication.

10. The network node of claim 7, wherein the one or more processors are further configured to: Information indicating an activation status of the cell is sent to the IAB donor CU based at least in part on receiving the indication.

11. The network node of claim 1 , wherein the DU cell resource configuration indicates availability of communication resources of the cell.

12. The network node of claim 11, wherein the communication resource is at least one of a time resource, a frequency resource, or a space resource.

13. The network node of claim 1, wherein the DU cell resource configuration indicates a direction of communication resources of the cell.

14. The network node of claim 13, wherein the communication resource is at least one of a time resource, a frequency resource, or a space resource.

15. The network node of claim 1, wherein the DU cell resource configuration is specific to a subnode served on the cell.

16. The network node of claim 1 , wherein the one or more processors are further configured to: Communicating with a parent node of the network node based at least in part on configuration information associated with the cell.

17. An integrated access and backhaul (IAB) donor central unit (CU) for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory and configured to: receiving, from a network node, information indicating a cell served by the network node and associated with another CU; and and sending a distributed unit (DU) cell resource configuration of the cell to the network node, wherein the cell is associated with a new radio cell identifier identifying the IAB donor CU, and wherein the cell is deactivated by the IAB donor CU or is prohibited from selecting access by a subnode of a public land mobile network associated with the IAB donor CU.

18. The IAB donor CU according to claim 17, wherein the network node is an IAB node or an IAB donor DU.

19. The IAB donor CU of claim 17, wherein the IAB donor CU is associated with a first network and the another CU is associated with a second network. 20 . The IAB donor CU of claim 17 , wherein the IAB donor CU is associated with resource management of an IAB network including the network node and the IAB donor CU, and wherein traffic associated with the another CU is transmitted through the IAB network.

21. The IAB donor CU of claim 17, wherein the information indicating the cell is transmitted via a signaling connection between the IAB donor CU and the network node, and wherein the signaling connection is associated with at least one of: F1 Control Protocol, or a radio resource control protocol, and wherein the signaling connection between the further CU and the network node is associated with at least one of: the F1 control protocol, or The radio resource control protocol.

22. The IAB donor CU of claim 17, wherein the cell is associated with a new radio cell identifier identifying the other CU.

23. The IAB donor CU of claim 17, wherein the cell is activated by the other CU, and wherein receiving information indicating the cell to the IAB donor CU is based at least in part on the cell being activated by the other CU.

24. The IAB donor CU according to claim 23, wherein the one or more processors are further configured to: Information indicating an activation status of the cell is received from the network node.

25. The IAB donor CU of claim 23, wherein sending the DU cell resource configuration is based at least in part on the cell being activated by the other CU.

26. The IAB donor CU of claim 17, wherein the DU cell resource configuration indicates availability or direction of communication resources of the cell.

27. A wireless communication method performed by a network node, comprising: sending information indicating a cell served by the network node and associated with another CU to an integrated access and backhaul IAB donor central unit CU; as well as A distributed unit (DU) cell resource configuration for the cell is received from an IAB donor CU, wherein the cell is associated with a new radio cell identifier identifying the IAB donor CU, and wherein the cell is deactivated by the IAB donor CU or is prohibited from selecting a subnode of a public land mobile network associated with the IAB donor CU for access.

28. A wireless communication method performed by an integrated access and backhaul (IAB) donor central unit (CU), comprising: receiving, from a network node, information indicating a cell served by the network node and associated with another CU; as well as and sending a distributed unit (DU) cell resource configuration of the cell to the network node, wherein the cell is associated with a new radio cell identifier identifying the IAB donor CU, and wherein the cell is deactivated by the IAB donor CU or is prohibited from selecting access by a subnode of a public land mobile network associated with the IAB donor CU.

29. A computer-readable medium having program code recorded thereon, wherein the program code is executable by one or more processors of a network node to cause the one or more processors to perform the method of claim 27.

30. A computer readable medium having program code recorded thereon, wherein the program code is executable by one or more processors of an integrated access and backhaul (IAB) donor central unit (CU) to cause the one or more processors to perform the method of claim 28.

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