Resource reporting for integrated access and backhaul radio access dual connectivity

Abstract

The various aspects of this disclosure generally relate to wireless communication. In some aspects, a first network node can receive information from a first Integrated Access and Backhaul (IAB) donor central unit (CU) indicating a first resource configuration used by an IAB node, which has a first connection with a first parent IAB node that is a child node of the first IAB donor CU. The first network node can send information to a second parent IAB node that is a child node of the first network node. Many 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. 63 / 078,171, filed September 14, 2020, entitled “RESOURCE REPORTING FOR INTEGRATED ACCESS AND BACKHAUL RADIO ACCESS DUAL CONNECTIVITY,” and U.S. Non-Provisional Patent Application No. 17 / 447,512, filed September 13, 2021, entitled “RESOURCE REPORTING FOR INTEGRATED ACCESS AND BACKHAUL RADIO ACCESS DUAL CONNECTIVITY,” which are expressly incorporated herein by reference. Technical Field

[0003] This disclosure relates generally to wireless communication, and specifically to techniques and apparatus for resource reporting for integrated access and backhaul radio access dual connectivity. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more base stations that support communication between a user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink and uplink communication. "Downlink" (or "DL") refers to the communication link from the base station to the UE, while "uplink" (or "UL") refers to the communication link from the UE to the base station.

[0006] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different UEs to communicate at the municipal, national, regional, and / or global levels. New Radio (NR)—which may be referred to as 5G—is a collection of enhancements to the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and better integrating with other open standards. Specifically, this includes using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (CP-OFDM), using CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, Multiple-Input Multiple-Output (MIMO) antenna technologies and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to increase. Summary of the Invention

[0007] Some aspects described herein relate to an apparatus for communication at a first network node. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive information from a first Integrated Access and Backhaul (IAB) donor central unit (CU) indicating a first resource configuration used by an IAB node, which has a first connection to a first parent IAB node that is a child node of the first IAB donor CU. The one or more processors may also be configured to send information to a second parent IAB node that is a child node of the first network node.

[0008] Some aspects described herein relate to an apparatus for communication at a first network node. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a request associated with an IAB node to a first IAB donor CU associated with a first parent IAB node, the IAB node having a first connection with a second parent IAB node that is a child node of the first network node. The one or more processors may also be configured to send information to the first IAB donor CU indicating a first resource configuration used by the IAB node.

[0009] Some aspects described herein relate to a communication method performed by a first network node. The method may include receiving information from a first IAB donor CU indicating a first resource configuration used by an IAB node, which has a first connection with a first parent IAB node that is a child node of the first IAB donor CU. The method may also include sending information to a second parent IAB node that is a child node of the first network node.

[0010] Some aspects described herein relate to a communication method performed by a first network node. This method may include sending a request associated with an IAB node to a first IAB donor CU associated with a first parent IAB node, the IAB node having a first connection with a second parent IAB node that is a child node of the first network node. The method may also include sending information to the first IAB donor CU indicating a first resource configuration used by the IAB node.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for communication by a first network node. When executed by one or more processors of the first network node, the set of instructions enables the first network node to receive information from a first IAB donor CU indicating a first resource configuration used by the IAB node, which has a first connection with a first parent IAB node that is a child node of the first IAB donor CU. When executed by one or more processors of the first network node, the set of instructions enables the first network node to send information to a second parent IAB node that is a child node of the first network node.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for communication by a first network node. When executed by one or more processors of the first network node, the set of instructions enables the first network node to send a request associated with an IAB node to a first IAB donor CU associated with a first parent IAB node, which has a first connection with a second parent IAB node that is a child node of the first network node. When executed by one or more processors of the first network node, the set of instructions also enables the first network node to send information to the first IAB donor CU indicating a first resource configuration used by the IAB node.

[0013] Some aspects described herein relate to an apparatus for communication. The apparatus may include components for receiving information from a first IAB donor CU indicating a first resource configuration used by an IAB node, the IAB node having a first connection with a first parent IAB node that is a child node of the first IAB donor CU. The apparatus may also include components for sending information to a second parent IAB node that is a child node of a first network node.

[0014] Some aspects described herein relate to an apparatus for communication. The apparatus may include components for sending a request associated with an IAB node to a first IAB donor CU associated with a first parent IAB node, the IAB node having a first connection with a second parent IAB node that is a child node of a first network node. The apparatus may also include components for sending information to the first IAB donor CU indicating a first resource configuration used by the IAB node.

[0015] The terms generally include, as basically described herein with reference to the accompanying drawings and description, and as illustrated in the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems.

[0016] The features and technical advantages of the examples according to this disclosure have been outlined rather broadly above to facilitate a better understanding of the detailed description that follows. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent structures do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and operation, and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not as a limitation of the definitions in the claims.

[0017] While aspects are described herein by way of example, those skilled in the art will understand that these aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip embodiments or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / purchasing devices, medical devices, and / or artificial intelligence devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating 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 one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). It is contemplated that the aspects described herein can be practiced in devices, components, systems, distributed arrangements, and / or end-user equipment of various sizes, shapes, and configurations. Attached Figure Description

[0018] To gain a detailed understanding of the foregoing features of this disclosure, a more specific description, briefly summarized above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should therefore not be considered as limiting its scope, as the description may allow for other equivalent aspects. The same reference numerals in different drawings can identify the same or similar elements.

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

[0020] Figure 2 This 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 This is a diagram illustrating an example of a radio access network according to this disclosure.

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

[0023] Figure 5 This is a diagram illustrating an example of resource types in an IAB network according to this disclosure.

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

[0025] Figure 7 This is a diagram illustrating an example of a resource report associated with dual connectivity for IAB radio access, according to this disclosure.

[0026] Figure 8 and Figure 9 This is a diagram illustrating an exemplary process associated with resource reporting for IAB radio access dual connectivity according to this disclosure.

[0027] Figure 10 This is a schematic diagram of an exemplary device for communication according to the present disclosure. Detailed Implementation

[0028] Various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided to make this disclosure thorough and complete, and to fully communicate the scope of this disclosure to those skilled in the art. Those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of the disclosure herein, whether implemented independently of or in combination with other aspects of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods that are practiced using structures, functions, or structures and functions other than those set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.

[0029] Several aspects of a telecommunications system will now be presented with reference to various devices and technologies. These devices and technologies will be described in detail below and illustrated in the accompanying drawings through various frames, modules, components, circuits, steps, processes, algorithms, etc. (collectively, “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0030] While the aspects may be described herein using terms commonly associated with 5G or New Radio (NR) Radio Access Technology (RAT), the aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G).

[0031] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other network entities. Base station 110 is the entity that communicates with UE 120. Base station 110 (sometimes referred to as BS) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a Transmit / Receive Point (TRP). Each base station 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of ​​base station 110 and / or the base station subsystem serving that coverage area, depending on the context in which the term is used.

[0032] Base station 110 can provide communication coverage for macro cells, pico cells, femtocells, and / or another type of cell. A macro cell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UE 120 with a service subscription. A pico cell can cover a relatively small geographic area and can allow unrestricted access for UE 120 with a service subscription. A femtocell can cover a relatively small geographic area (e.g., a home) and can allow restricted access for UE 120 associated with the femtocell (e.g., UE 120 in a Closed Subscriber Group (CSG)). Base station 110 for macro cells can be referred to as a macro base station. Base station 110 for pico cells can be referred to as a pico base station. Base station 110 for femtocells can be referred to as a femtocell or a home base station. Figure 1 In the example shown, BS 110a can be a macro base station for macro cell 102a, BS 110b can be a pico base station for pico cell 102b, and BS 110c can be a femto base station for femto cell 102c. A base station can support one or more (e.g., three) cells.

[0033] In some examples, the cell is not necessarily stationary, and the geographical area of ​​the cell can move depending on the location of the mobile base station 110 (e.g., a mobile base station). In some examples, base station 110 can use any suitable transport network to interconnect with each other and / or with one or more other base stations 110 or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections or virtual networks).

[0034] Wireless network 100 may include one or more relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., base station 110 or UE 120) and transmit data transmissions to a downstream station (e.g., UE 120 or base station 110). A relay station may be a UE 120 that can relay transmissions for other UE 120s. Figure 1 In the example shown, BS 110d (e.g., a relay base station) can communicate with BS 110a (e.g., a macro base station) and UE 120d to facilitate communication between BS 110a and UE 120b. The base station 110 for relay communication can be referred to as a relay station, relay base station, repeater, etc.

[0035] Wireless network 100 can be a heterogeneous network, comprising different types of base stations 110, such as macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of base stations 110 can have different transmit power levels, different coverage areas, and / or different effects on interference in wireless network 100. For example, macro base stations can have high transmit power levels (e.g., 5 watts to 40 watts), while pico base stations, femto base stations, and relay base stations can have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0036] Network controller 130 can be coupled to or communicate with a group of base stations 110, and can provide coordination and control for these base stations 110. Network controller 130 can communicate with base stations 110 via backhaul communication links. Base stations 110 can communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0037] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be fixed or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, and / or any other suitable device configured to communicate via a wireless medium.

[0038] Some UEs 120 can be considered machine-type communication (MTC) UEs or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 can be considered Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs 120 can be considered customer premises equipment. UEs 120 may be included within a housing that houses the components of the UE 120, such as processor components and / or memory components. In some examples, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0039] Typically, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT can be referred to as a radio technology, air interface, etc. A frequency can be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks with different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0040] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary for communication with each other). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0041] Devices in Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., by frequency or wavelength. For example, devices in Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been identified as the frequency range names FR1 (410MHz–7.125GHz) and FR2 (24.25GHz–52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is often referred to (interchangeably) as the “below 6GHz” band in various documents and articles. Similar naming issues sometimes arise with FR2; although FR2 differs from the Extremely High Frequency (EHF) band (30GHz–300GHz) identified as a “millimeter wave” band by the International Telecommunication Union (ITU), FR2 is often referred to (interchangeably) as the “millimeter wave band” in documents and articles.

[0042] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have identified the operating bands of these mid-band frequencies as the frequency range name FR3 (7.125 GHz – 24.25 GHz). Bands falling within FR3 can inherit the characteristics of FR1 and / or FR2, and thus can effectively extend the characteristics of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating bands have been identified as the frequency range names FR4a or FR4-1 (52.6 GHz – 71 GHz), FR4 (52.6 GHz – 114.25 GHz), and FR5 (114.25 GHz – 300 GHz). Each of these higher bands falls within the EHF band.

[0043] Considering the examples above, unless otherwise specified, it should be understood that the terms "below 6 GHz," etc. (if used herein), can broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include intermediate frequency band frequencies. Furthermore, unless otherwise specified, it should be understood that the terms "millimeter wave," etc. (if used herein), can broadly refer to frequencies that may include intermediate frequency band frequencies, may be within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or may be within the EHF band. It is contemplated that frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0044] As mentioned above, providing Figure 1 As an example. Other examples may differ from those regarding... Figure 1The content described.

[0045] Figure 2 This is 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 a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1).

[0046] At base station 110, transmitting processor 220 can receive data for UE 120 (or a group of UE 120) from data source 212. Transmitting processor 220 can select one or more modulation and coding schemes (MCS) for UE 120, at least in part, based on one or more Channel Quality Indicators (CQIs) received from the UE 120. Base station 110 can process (e.g., encode and modulate) the data of UE 120, at least in part, based on the MCS selected for UE 120, and can provide data symbols for UE 120. Transmitting processor 220 can 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. Transmitting processor 220 can generate reference symbols for reference signals (e.g., Cell-Specific Reference Signal (CRS) or Demodulation Reference Signal (DMRS)) and synchronization signals (e.g., Primary Synchronization Signal (PSS) or Secondary Synchronization Signal (SSS)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), shown as modems 232a to 232t. For example, each output symbol stream can be provided to a modulator component (shown as MOD) of modem 232. Each modem 232 can use a corresponding modulator component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 can also use a corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream to obtain a downlink signal. Modems 232a to 232t can transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0047] At UE 120, a set of antennas 252 (shown as antennas 252a to 252r) can receive downlink signals from base station 110 and / or other base stations 110, and can provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal can be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 can use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain an input sample. Each modem 254 can use the demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from modem 254, perform MIMO detection on the received symbols if applicable, and can provide the detected symbols. The receiver processor 258 can process (e.g., demodulate and decode) detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some examples, one or more components of UE 120 may be included in housing 284.

[0048] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0049] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include one or more antenna panels, one or more antenna groups, one or more groups of antenna elements and / or one or more antenna arrays, etc., or may be included in one or more antenna panels, one or more antenna groups, one or more groups of antenna elements and / or one or more antenna arrays, etc. Antenna panels, antenna groups, groups of antenna elements and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements and / or one or more antenna elements coupled to one or more transmitting and / or receiving components, such as... Figure 2 One or more components.

[0050] On the uplink, at UE 120, the transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 can generate reference symbols for one or more reference signals. If applicable, the symbols from the transmit processor 264 can be pre-encoded by the TX MIMO processor 266, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some examples, the modem 254 of UE 120 may include a modulator and demodulator. In some examples, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., references). Figures 7 to 10 ).

[0051] At base station 110, uplink signals from UE 120 and / or other UEs can be received by antenna 234, processed by modem 232 (e.g., demodulator components of modem 232, such as DEMOD), detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. Receive processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and can communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of base station 110 may include modulator and demodulator. In some examples, base station 110 includes transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., references...). Figures 7 to 10 ).

[0052] The controller / processor 240 of base station 110, the controller / controller 280 of UE 120 and / or Figure 2Any other component may perform one or more technologies associated with resource reporting for Integrated Access and Backhaul (IAB) radio access dual connectivity, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / controller 280 of UE 120, and / or Figure 2 Any other component can execute or direct, for example Figure 8 The process 800 Figure 9 The operation of process 900 and / or other processes described herein. Memory 242 and memory 282 may store data and program code of base station 110 and UE 120, respectively. In some examples, 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 communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly executed or executed after compilation, transformation, and / or interpretation), may cause one or fewer processors, UE 120, and / or base station 110 to execute or direct, for example... Figure 8 The process 800 Figure 9 The operation of process 900 and / or other processes described herein. In some examples, the execution instructions may include run instructions, translate instructions, compile instructions, and / or interpret instructions, etc. In some aspects, the network nodes described herein (e.g., IAB Central Unit (CU) and / or IAB Distributed Unit (DU)) are base stations 110, included in base stations 110, or comprising Figure 2 One or more components of the base station 110 shown.

[0053] In some respects, network nodes (e.g., Figure 7 IAB donor CU 705a and / or Figure 10 The apparatus 1000 may include: for receiving from a first IAB donor CU (e.g., Figure 7 IAB donor CU 705b and / or Figure 10 The apparatus 1000 receives information indicating a first resource configuration used by an IAB node, the IAB node having a first connection with a first parent IAB node that is a child node of a first IAB donor CU; and / or a component for sending information to a second parent IAB node that is a child node of a first network node. In some aspects, the components for causing the first network node to perform the operations described herein may include, for example, one or more of a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0054] In some respects, network nodes (e.g., Figure 7 IAB donor CU 705b and / or Figure 10 The apparatus 1000 may include: a method for sending a first IAB donor CU (e.g., associated with a first parent IAB node) to a first parent IAB node. Figure 7 IAB donor CU 705a and / or Figure 10 The apparatus 1000 includes components for sending a request associated with an IAB node, which has a first connection with a second parent IAB node that is a child node of the first network node; and / or components for sending information to the first IAB donor CU indicating a first resource configuration used by the IAB node. In some aspects, components for causing the first network node to perform the operations described herein may include one or more of, for example, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0055] although Figure 2 The boxes are shown as different components, but the functions described above with respect to the boxes can be implemented as a single hardware, software, or combined component, or as various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 can be performed by or under the control of the controller / processor 280.

[0056] As mentioned above, providing Figure 2 As an example. Other examples may differ from those regarding... Figure 2 Example of the description.

[0057] Figure 3 This is a diagram illustrating an example 300 of a radio access network according to this disclosure. As indicated by reference numeral 305, a conventional (e.g., 3G, 4G, or LTE) radio access network may include multiple base stations 310 (e.g., access nodes (ANs)), each base station 310 communicating with a core network via a wired backhaul link 315 (such as a fiber optic connection). Base stations 310 may communicate with a UE 320 via an access link 325, which may be a radio link. In some aspects, Figure 3 The base station 310 shown can be Figure 1 The base station 110 is shown. In some respects, Figure 3 The UE 320 shown can be Figure 1 The UE 120 shown.

[0058] As indicated by reference numeral 330 in the attached figure, the radio access network may include a wireless backhaul network, sometimes referred to as an Integrated Access and Backhaul (IAB) network. In an IAB network, at least one base station is an anchor base station 335 that communicates with the core network via a wired backhaul link 340 (such as a fiber optic connection). The anchor base station 335 may also be referred to as an IAB donor (or IAB provider). The IAB network may include one or more non-anchor base stations 345, sometimes referred to as relay base stations or IAB nodes (or IABs). Non-anchor base stations 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 services. The backhaul link 350 may be a radio 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 radio link for carrying access services. In some aspects, Figure 3 The anchor base station 335 and / or non-anchor base station 345 shown can be Figure 1 The base station 110 is shown. In some respects, Figure 3 The UE 355 shown can be Figure 1 The UE120 shown.

[0059] As indicated by reference numeral 365 in the accompanying drawings, in some aspects, radio access networks, including IAB networks, can utilize millimeter-wave technology and / or directional communication (e.g., beamforming) to communicate 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, a radio backhaul link 370 between base stations can use millimeter-wave signals to carry information and / or can be beamformed to a target base station. Similarly, a radio access link 375 between a UE and a base station can use millimeter-wave signals and / or can be directed to a target radio node (e.g., the UE and / or the base station). This reduces inter-link interference.

[0060] Figure 3 The configuration of the base station and UE is shown as an example, and other examples are envisioned. For example, Figure 3 The one or more base stations shown can be replaced by one or more UEs communicating via a UE-to-UE access network (e.g., a peer-to-peer network or a device-to-device network). In this case, the anchor node can refer to a UE that communicates directly with a base station (e.g., an anchor base station or a non-anchor base station).

[0061] As mentioned above, providing Figure 3 As an example. Other examples may differ from those regarding... Figure 3 The content described.

[0062] Figure 4This is a diagram illustrating an example 400 of the IAB network architecture according to this disclosure. Figure 4 As shown, the IAB network may include an IAB donor 405 (shown as an IAB donor) connected to the core network via a wired connection (shown as a wired backhaul). For example, the Ng interface of the IAB donor 405 may terminate at the core network. Alternatively or additionally, the IAB donor 405 may connect to one or more devices in the core network that provide core access and mobility management functions (e.g., AMF). In some aspects, the IAB donor 405 may include a base station 110, such as an anchor base station, as described above. Figure 3 As shown in the figure, the IAB donor 405 may include a CU that can perform Access Node Controller (ANC) functions and / or AMF functions. The CU can configure the DU of the IAB donor 405 and / or can configure one or more IAB nodes 410 (e.g., mobile terminal (MT) units and / or DUs of IAB nodes 410) connected to the core network via the IAB donor 405. Therefore, the CU of the IAB donor 405 can 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 or F1 Application Protocol (F1AP) messages).

[0063] like Figure 4 As further illustrated, the IAB network may include IAB nodes 410 (shown as IAB node 1, IAB node 2, and IAB node 3), which are connected to the core network via IAB donor 405. As shown, IAB node 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 IAB node 410 (e.g., a child node) may be controlled and / or scheduled by another IAB node 410 (e.g., the parent node of the child node) and / or IAB donor 405. The DU functionality of IAB node 410 (e.g., the parent node) may control and / or schedule other IAB nodes 410 (e.g., child nodes of the parent node) and / or UE 120. Therefore, DU may be referred to as a scheduling node or scheduling component, and MT may be referred to as a scheduled node or scheduled component. In some aspects, IAB donor 405 may include DU functionality but not MT functionality. In other words, IAB donor 405 can configure, control, and / or schedule the communication of IAB node 410 and / or UE 120. UE 120 may include only MT functionality and not DU functionality. That is, the communication of UE 120 can be controlled and / or scheduled by IAB donor 405 and / or IAB node 410 (e.g., the parent node of UE 120).

[0064] When the first node controls and / or schedules the communication of the second node (e.g., when the first node provides DU functionality for the second node's MT function), the first node can be referred to as the parent node of the second node, and the second node can be referred to as a child node within the first node. The child nodes of the second node can be referred to as grandchild nodes of the first node. Therefore, the parent node's DU functionality can control and / or schedule the communication of the parent node's child nodes. The parent node can be IAB donor 405 or IAB node 410, and the child node can be IAB node 410 or UE 120. The communication of the child node's MT function can be controlled and / or scheduled by the child node's parent node.

[0065] like Figure 4 As further shown, the link between UE 120 (e.g., having only MT functionality and not DU functionality) and IAB donor 405, or between UE 120 and IAB node 410, can be referred to as access link 415. Access link 415 can be a radio access link that provides radio access to the core network to UE 120 via IAB donor 405 and optionally via one or more IAB nodes 410. Therefore, Figure 4 The network shown can be called a multi-hop network or a wireless multi-hop network.

[0066] like Figure 4 As further illustrated, the link between IAB donor 405 and IAB node 410, or between two IAB nodes 410, can be referred to as backhaul link 420. Access link 420 can be a wireless backhaul link that provides radio access to the core network to IAB node 410 via IAB donor 405 and optionally via one or more other IAB nodes 410. In the IAB network, network resources for wireless communication (e.g., time resources, frequency resources, and / or spatial resources) can be shared between access link 415 and backhaul link 420. In some aspects, backhaul link 420 can be a primary backhaul link or a secondary backhaul link (e.g., a backup backhaul link). In some aspects, a secondary backhaul link can be used if the primary backhaul link fails, becomes congested, and / or becomes overloaded. For example, if the primary backhaul link between IAB node 2 and IAB node 1 fails, a backup link 425 between IAB node 2 and IAB node 3 can be used for backhaul communication. As used in this article, a node or wireless node may refer to IAB donor 405 or IAB node 410.

[0067] As mentioned above, providing Figure 4 As an example. Other examples may differ from those regarding... Figure 4 The content described.

[0068] Figure 5This is a diagram illustrating example 500 of resource types in an IAB network according to this disclosure. In an IAB network, time-domain resources (sometimes called time resources) can be configured to be downlink-only, uplink-only, flexible, or unavailable (e.g., unusable). When a time resource is configured for downlink-only for a wireless node, the time resource may be available only for downlink communication of the wireless node, but unavailable for uplink communication. Similarly, when a time resource is configured for uplink-only for a wireless node, the time resource may be available only for uplink communication of the wireless node, but unavailable for downlink communication. When a time resource is configured for flexible communication of a wireless node, the time resource may be available for both downlink and uplink communication of the wireless node. When a time resource is configured to be unavailable for a wireless node, the time resource may not be used for any communication of the wireless node.

[0069] Examples of downlink communications include synchronization signal blocks (SSBs), channel state information reference signals (CSI-RS), physical downlink control channel (PDCCH) communications, and / or physical downlink shared channel (PDSCH) communications. Examples of uplink communications include physical random access channel (PRACH) communications, physical uplink control channel (PUCCH) communications, physical uplink shared channel (PUSCH) communications, and / or sounding reference signals (SRS).

[0070] In an IAB network, time resources configured as downlink-only, uplink-only, or flexible can be further configured as hard or soft resources. When a time resource is configured as a hard resource for a wireless node, that time resource is always available for the wireless node's communication. For example, a downlink-only hard time resource is always available for the wireless node's downlink-only communication, an uplink-only hard time resource is always available for the wireless node's uplink-only communication, and a hard flexible time resource is always available for both uplink and downlink communication of the wireless node.

[0071] When a time resource is configured as a soft resource for a wireless node, its availability 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 the wireless node's communication. Therefore, a soft time resource can be in one of two states: a schedulable state (e.g., when the soft time resource is available for scheduling and / or the wireless node's communication) and an unschedulable state (e.g., when the soft time resource is unavailable for scheduling and not available for the wireless node's communication).

[0072] For example, when the parent node of a wireless node indicates that only downlink soft-time resources are available, these downlink soft-time resources can only be used for the wireless node's downlink communication. Similarly, when the parent node of a wireless node indicates that only uplink soft-time resources are available, these uplink soft-time resources can only be used for the wireless node's uplink communication. When the parent node of a wireless node indicates that soft flexible-time resources are available, these soft flexible-time resources can only be used for both uplink and downlink communication of the wireless node.

[0073] As an example, and as shown by reference numeral 505 in the attached figure, a time resource can be configured to be a hard resource for child nodes and can be configured to be unavailable for the parent node of the child node. In this case, the parent node cannot use the time resource for communication, but the child node can schedule communication within that time resource and / or use the time source for communication. This configuration can reduce interference between parent and child nodes and / or reduce scheduling conflicts between parent and child nodes.

[0074] As another example, and as shown by reference numeral 510 in the figure, a time resource can be configured to be unavailable for child nodes, and can be configured to be a hard resource, a soft resource, or unavailable for the parent node (e.g., depending on network configuration, network conditions, and / or the configuration of the parent node's parent node). In this case, the child node cannot schedule communication in that time resource, nor can it use that time resource for communication.

[0075] As another example, and as shown by reference numeral 515 in the figure, a time resource can be configured to be a soft resource for child nodes and can be configured to be a hard resource, a soft resource, or unavailable for the parent node (e.g., depending on network configuration, network conditions, and / or the configuration of the parent node's parent). In this case, the child node cannot use the time resource for scheduling or communication unless the child node receives an indication from the parent node (e.g., explicitly or implicitly) that the time resource is available for the child node's use (released) (e.g., a release indication). If the child node receives such an indication, the child node can schedule communication in that time resource and / or use the time resource for communication.

[0076] As mentioned above, Figure 5 This is provided as an example only. Other examples are possible and may differ from those provided. Figure 5 The content described.

[0077] Figure 6This is a diagram illustrating an example 600 of a DU cell resource configuration in an IAB network according to this disclosure. Example 600 includes an IAB donor CU 601. The IAB donor CU 601 may be associated with a gNB (e.g., gNB 110). The IAB donor CU 601 can handle the resource configuration of the parent DU 603 and IAB node 605. Therefore, the IAB donor CU 601 can accommodate the half-duplex constraints of the parent DU 603, IAB node 605, and / or other nodes in the IAB network.

[0078] The IAB donor CU 601 can provide resource configuration via cell resource configuration (shown as "gNB-DU cell resource configuration"). In some aspects, as indicated by reference numeral 607, cell resource configuration can be cell-specific. For example, the IAB donor CU 601 can provide a corresponding cell resource configuration for each cell served by the DU (e.g., parent DU 603). Cell resource configuration can indicate the combination of Figure 5 At least a portion of the information described.

[0079] The term "cell" can refer to a logical communication entity used to communicate with a base station (e.g., via a carrier) and can be associated with an identifier used to distinguish neighboring cells operating via the same or different carriers. In some examples, a cell can support different services and / or device types (e.g., MTC, NB-IoT, enhanced mobile broadband (eMBB), ultra-reliable low-latency (URLLC) communications, etc.). In some cases, the term "cell" can refer to a portion of a geographic coverage area (e.g., a sector) on which a logical entity operates. If a DU handles the scheduling of communications via a cell, then that cell can be referred to as being "served" by that DU.

[0080] A cell can be associated with a Cell Global Identifier (CGI) (such as the NR CGI (NCGI)). The NCGI uniquely identifies the cell. The NCGI includes a Public Land Mobile Network (PLMN) identifier and an NR cell identifier. The PLMN identifier (which may be 24 bits) may include a Mobile Country Code (MCC) (e.g., 12 bits) and a Mobile Network Code (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 identifier can be unique within the gNB and can be generic for all cells served by a gNB with a single IAB donor CU (e.g., all IAB donor DUs and all IAB node DUs). Equivalently, the PLMN and gNB ID can globally identify the gNB.

[0081] In some cases, an IAB node can be associated with a DU, which in turn is associated with two or more different CUs. Therefore, a cell associated with a first CU may interfere with a cell associated with a second CU. For example, an IAB node may have dual connectivity to multiple DUs and may be associated with two or more CUs. Additionally, an IAB node may have one or more DUs and serve one or more cells. Therefore, if multiple IAB donor CUs do not coordinate the resource configuration of an IAB node with dual connectivity and serving one or more DUs, the IAB donor CU may provide cell resource configurations that cause interference between one or more cells and between dual connectivity with multiple DUs. Such interference reduces throughput, increases the likelihood of radio link failures, and relies on active interference mitigation, which consumes power, processing resources, and network overhead.

[0082] Some of the techniques and apparatus described herein provide signaling that enables a first IAB donor CU to coordinate the resource configuration of an IAB node with a second IAB donor CU, the IAB node being dual-connected to a DU associated with both the first and second IAB donor CUs. Therefore, the IAB donor CU can provide a cell resource configuration that takes into account dual connectivity. By providing a cell resource configuration that takes into account dual connectivity, the IAB donor CU reduces interference, and thus increases throughput, reduces the likelihood of radio link failures, and saves power, processing resources, and network overhead that would otherwise be wasted on interference mitigation.

[0083] As mentioned above, providing Figure 6 As an example. Other examples are also possible, and may differ from those regarding... Figure 6 The content described.

[0084] Figure 7 This is a diagram illustrating example 700 associated with a resource report for dual connectivity to IAB radio access, according to this disclosure. Figure 7 As shown, Example 700 includes communication between two network nodes, which may be a first IAB donor CU 705a and a second IAB donor CU 705b. Although the description focuses on the IAB donor CU, the description is similarly applicable to other network nodes, such as IAB donor DUs and / or base stations.

[0085] like Figure 7As further illustrated, the first IAB donor CU 705a can support the parent DU 710a. IAB donor CU 705a can also be referred to as the "F1 terminating donor" supporting "parent node 1" (which is DU 710a). The parent DU 710a can have one or more child IAB nodes, such as IAB node 715. Figure 7 As shown, IAB node 715 may include an MT unit (also known as IAB-MT) and a DU (also known as IAB-DU). Similarly, a second IAB donor CU 705b may support a parent DU 710b. IAB donor CU 705b may also be referred to as a "non-F1 terminated donor" supporting "parent node 2" (which is DU 710b).

[0086] IAB node 715 may have a first connection 720a with a parent DU 710a supported by a first IAB donor CU 705a. The first connection 720a may also be referred to as "parent link 1" between parent node 1 and the "child node" (which is IAB node 715). The first connection 720a may be associated with a first cell having a first cell resource configuration allocated by the first IAB donor CU 705a. For example... Figure 7 As further shown, the first IAB donor CU 705a and the second IAB donor CU 705b can communicate on interface 725 (e.g., the Xn interface and / or another similar interface).

[0087] In Example 700, the first IAB donor CU 705a and the second IAB donor CU 705b can coordinate to establish a second connection 720b between IAB node 715 and a parent DU 710b supported by the second IAB donor CU 705b. The second connection 720b can also be referred to as "parent link 2" between parent node 2 and its "child node" (which is IAB node 715). The second connection 720b can be associated with a second cell having a second cell resource configuration allocated by the second IAB donor CU 705b.

[0088] In Example 700, the first IAB donor CU 705a can send information indicating the resource configuration used by the IAB node 715, and the second IAB donor CU 705b can receive this information. For example, the first IAB donor CU 705a can use interface 725 to send this information. In some aspects, the resource configuration can be used by the IAB node 715 on the first connection 720a and / or for communication with one or more UEs (e.g., UE 120) and / or with one or more child nodes (e.g., child IAB nodes). In some aspects, the second IAB donor CU 705b can send a request for resource configuration, and the first IAB donor CU 705a can receive the request, causing the first IAB donor CU 705a to send information in response to the request. Alternatively, the first IAB donor CU 705a can send the request, and the second IAB donor CU 705b can receive the request.

[0089] In some aspects, resource configuration may indicate the combination of resources used by IAB node 715 for MT communication and resources used by IAB node 715 for DU communication. DU communication may include communication with one or more UEs (e.g., UE 120). For example, DU communication may include downlink communication to one or more UEs (e.g., on PDCCH, PDSCH and / or other downlink channels) and broadcast communication (e.g., reference signals, synchronization signals and / or other broadcast or multicast signals and messages). MT communication may include communication with parent DUs (e.g., parent DU 710a and / or parent DU 710b).

[0090] Alternatively, this information may indicate that one or more resources used by IAB node 715 for MT communication are separate from one or more resources used by IAB node 715 for DU communication. In some aspects, the first IAB donor CU 705a may send information indicating the resource configuration used by IAB node 715 for MT communication, and the second IAB donor CU 705b may receive this information; and the first IAB donor CU 705a may send additional information indicating the resource configuration used by IAB node 715 for DU communication, and the second IAB donor CU 705b may receive this additional information separately from the information. In any of the above aspects, the resources used by IAB node 715 for MT communication may at least partially overlap with the resources used by IAB node 715 for DU communication.

[0091] In some aspects, the resource configuration used by the IAB node 715 may include at least one time resource. For example, the at least one time resource may include a frame, half-frame, subframe, time slot, symbol, or a combination thereof. Alternatively, the resource configuration used by the IAB node 715 may include at least one frequency resource. For example, the at least one frequency resource may include a carrier, a bandwidth portion, a resource block, or a combination thereof. Alternatively, the resource configuration used by the IAB node 715 may include at least one spatial resource. For example, the at least one spatial resource may include a beam direction, a synchronization signal region, or a combination thereof.

[0092] The resource configuration used by IAB node 715 can be cell-specific or sub-node-specific. For example, the resource configuration can be used for a cell served by IAB node 715 (e.g., the first cell as described above) or for a sub-node of IAB node 715 (e.g., another IAB node that is a sub-node of IAB node 715).

[0093] In some aspects, the information may include at least a portion of, or a combination thereof, of the cell resource configuration of the cell served by IAB node 715 (e.g., the first cell as described above), the configuration of synchronization signal transmissions (e.g., SSB transmissions) associated with the cell, the CSI-RS configuration of the cell, the random access channel (RACH) configuration of the cell, the scheduling request (SR) configuration of the cell, the downlink channel configuration for the cell (e.g., PDCCH, PDSCH and / or other downlink channels), the subcarrier spacing (SCS) for cell transmission, and system information messages associated with the cell (e.g., Machine Information Block (MIB) messages, System Information Block (SIB) messages and / or other similar messages).

[0094] In some aspects, this information may also indicate the multiplexing capabilities associated with IAB node 715. For example, the information may indicate whether IAB node 715 is using half-duplex, full-duplex, and / or other multiplexing schemes for different communications. In some aspects, multiplexing capabilities may include a multiplexing scheme between MT and DU communications of IAB node 715. Additionally or alternatively, multiplexing capabilities may include a multiplexing scheme between communications on the second connection 720b and at least one of communications on the first connection 720a or DU communications of IAB node 715.

[0095] In some aspects, the second IAB donor CU 705b can send information indicating resource configuration to the parent IAB node (e.g., parent DU 710b). The parent DU 710b can send an acknowledgment at least in part based on the information indicating resource configuration, and the second IAB donor CU 705b can receive the acknowledgment. In some aspects, the acknowledgment can be based at least in part on the satisfaction of multiplexing conditions between at least one of the communications on the second connection 720b and the communications on the first connection 720a or the DU communications of the IAB node 715. For example, the acknowledgment can be based at least in part on the satisfaction of an interference threshold between at least one of the communications on the second connection 720b and the communications on the first connection 720a or the DU communications of the IAB node 715.

[0096] The second IAB donor CU 705b may send an acknowledgment at least in part based on this information, and the first IAB donor CU 705a may receive the acknowledgment. In some aspects, the second IAB donor CU 705b may send an acknowledgment to the first IAB donor CU 705a at least in part based on receiving an additional acknowledgment (e.g., as described above) from the parent DU 710b.

[0097] As an alternative, the second IAB donor CU 705b can send a rejection of the second connection 720b, which the first IAB donor CU 705a can receive. Therefore, the IAB node 715 can maintain the first connection 720a without establishing the second connection 720b.

[0098] As an alternative, in some aspects, the first IAB donor CU 705a and / or the second IAB donor CU 705b may send additional communications to establish the second connection 720b. Additionally or alternatively, the first IAB donor CU 705a and / or the second IAB donor CU 705b may modify at least one of the first connection 720a or the second connection 720b to accommodate the other of the first connection 720b or the second connection 720b.

[0099] In some aspects, the first IAB donor CU 705a may further send information indicating the cell resource configuration of a cell (e.g., a second cell) served by the parent IAB node (e.g., parent DU 710b) of IAB node 715, and the second IAB donor CU 705b may receive this information. Therefore, the first IAB donor CU 705a may modify the cell resource configuration of the second cell to suit the second connection 720b. As used herein, “modifying” to suit the second connection 720b may include “matching” the configuration to the configuration associated with the second connection 720b. For example, matching may include using and combining... Figure 5The same H / S / N pattern (or at least a compatible pattern, e.g., where no unavailable resources are marked as available and no soft resources are marked as hard resources) and / or the same Time Division Duplex (TDD) pattern (or at least a compatible pattern, e.g., where no downlink resources are marked as uplink and no uplink resources are marked as downlink) are used. Alternatively or additionally, the parent DU710b may establish an F1-C connection and / or other similar connection with the first IAB donor CU 705a, and receive information from the first IAB donor CU 705a indicating the cell resource configuration of the second cell.

[0100] In some respects, the second IAB donor CU 705b can modify the cell resource configuration of a cell (e.g., a second cell) served by the parent IAB node (e.g., parent DU 710b) of IAB node 715, at least in part, based on information indicating the resource configuration. Therefore, the second IAB donor CU 705b can modify the cell resource configuration of the second cell to suit the second connection 720b. As used herein, “modifying” to suit the second connection 720b can include “matching” the configuration associated with the second connection 720b to the resource configuration indicated by the IAB donor CU 705a. For example, matching can include using and combining... Figure 5 The same H / S / N style (or at least a compatible style, e.g., where no unavailable resources are marked as available and no soft resources are marked as hard resources) and / or the same TDD style (or at least a compatible style, e.g., where no downlink resources are marked as uplink and no uplink resources are marked as downlink) are used.

[0101] Alternatively or concurrently, the second IAB donor CU 705b may send information indicating the resource configuration to be used by IAB node 715 on the first connection 720a and / or information indicating the resource configuration to be used by IAB node 715 on the second connection 720b, and the first IAB donor CU 705a may receive this information. For example, the second IAB donor CU 705b may suggest a resource configuration for the first connection 720a. Alternatively or concurrently, the IAB donor CU 705b may indicate a desired resource configuration for the second connection 720b. Thus, in some aspects, the first IAB donor CU 705a may modify the cell resource configuration of a cell (e.g., a third cell) served by the parent IAB node (e.g., parent DU710a) of IAB node 715, at least in part, based on the information indicating the resource configuration. Thus, the first IAB donor CU 705a may modify the cell resource configuration of the third cell to suit the second connection 720b.

[0102] In some respects, the second IAB donor CU 705b can send information indicating the cell resource configuration of a cell (e.g., the first cell) served by the IAB node 715, and the first IAB donor CU 705a can receive this information. Therefore, the second IAB donor CU 705b can modify the cell resource configuration of the first cell to suit the second connection 720b. Alternatively, the parent DU 710a can establish an F1-C connection and / or other similar connection with the second IAB donor CU 705b and receive information indicating the cell resource configuration of the first cell from the second IAB donor CU 705b.

[0103] In some aspects, the second IAB donor CU 705b can send information indicating the cell resource configuration of a third cell served by the parent IAB node (e.g., parent DU 710a) of IAB node 715, and the first IAB donor CU 705a can receive this information. For example, the second IAB donor CU 705b can determine that the cell resource configuration of the third cell meets the multiplexing conditions (e.g., as described above). Alternatively or additionally, the parent DU 710b can establish an F1-C connection and / or other similar connection with the second IAB donor CU 705b and receive information indicating the cell resource configuration of the third cell from the second IAB donor CU 705b.

[0104] The first IAB donor CU 705a and / or the second IAB donor CU 705b may send a message to trigger a second connection 720b between IAB node 715 and the second IAB donor CU 705b. For example, the first IAB donor CU 705a may send a message triggering the establishment of the second connection 720b to the second IAB donor CU 705b and / or to the parent DU 710b (e.g., via an F1-C connection) via interface 725. Alternatively, the second IAB donor CU 705b may send a message triggering the establishment of the second connection 720b to the parent DU 710b. Alternatively, the first IAB donor CU 705a may send (e.g., via parent DU 710a) and / or the second IAB donor CU 705b may send (e.g., via parent DU 710b) a message triggering IAB node 715 to establish the second connection 720b.

[0105] After triggering the second connection 720b, the second IAB donor CU 705b may send information indicating the resource configuration used by IAB node 715 on the second connection 720b and / or the connection from IAB node 715 to UE 120 and / or to the child IAB nodes of IAB node 715 connected to UE 120, and the first IAB donor CU 705a may receive this information. Alternatively, after triggering the second connection 720b, the first IAB donor CU 705a may send information indicating the resource configuration used by IAB node 715 on the first connection 720a and / or the connection from IAB node 715 to UE 120 and / or to the child IAB nodes of IAB node 715 connected to UE 120, and the second IAB donor CU 705b may receive this information. Therefore, after the second connection 720b is triggered, the first IAB donor CU 705a and / or the second IAB donor CU 705b can further modify the cell resource configuration associated with the first connection 720a, the cell resource configuration associated with the second connection 720b, the cell resource configuration associated with the cell served by the IAB node 715, and the cell resource configuration associated with the connection to the child IAB node of the IAB node 715.

[0106] Although the description pertains to the situation that occurs after the second connection 720b is triggered, alternatively, the aforementioned exchange may occur before the second connection 720b is established, or simultaneously with the signal exchange between the first IAB donor CU 705a and the second IAB donor CU 705b preparing to establish the second connection 720b.

[0107] In some respects, the first connection 720a may use the F1 control (F1-C) protocol, the RRC protocol, and / or other similar protocols. Similarly, the second connection 720b may use the F1-C protocol, the RRC protocol, and / or other similar protocols. The first connection 720a and the second connection 720b may use the same protocol or different protocols.

[0108] In some respects, IAB node 715 can use dual-connectivity modes to establish a first connection 720a and a second connection 720b. For example, dual-connectivity modes may include Evolved Universal Terrestrial Radio Access (EUTRA) NR Dual-Connectivity (EN-DC) mode, Next Generation Radio Network (NG-RAN) E-UTRA NR Dual-Connectivity (NGEN-DC) mode, NR Dual-Connectivity (NR-DC) mode, NR E-UTRA Dual-Connectivity (NE-DC) mode, and / or other similar dual-connectivity modes.

[0109] Alternatively or alternatively, the IAB node 715 may use a Dual Active Protocol Stack (DAPS) handover procedure to establish the first connection 720a and the second connection 720b. In some aspects, the DAPS handover procedure may be performed for each radio bearer. Thus, for example, the IAB node 715 may use a DAP handover procedure for a single bearer. Alternatively or alternatively, the IAB node 715 may use a DAPS handover procedure for a backhaul radio link connection (RLC) channel.

[0110] By using combination Figure 7 The described technique, in which the first IAB donor CU 705a and the second IAB donor CU 705b switch consider the cell resource configuration of dual connections on the first connection 720a and the second connection 720b, as well as DU communication of the IAB node 715. Therefore, the IAB donor CUs 705a and 705b increase throughput, reduce the likelihood of radio link failures, and save power, processing resources, and network overhead that would otherwise be wasted on interference mitigation.

[0111] As mentioned above, providing Figure 7 As an example. Other examples may differ from those regarding... Figure 7 The content described.

[0112] Figure 8 This is a diagram illustrating an exemplary process 800 performed, for example, by a first network node according to this disclosure. Exemplary process 800 is a first network node (e.g., Figure 7 First IAB donor CU 705a and / or Figure 10 An example of the device 1000 performing operations associated with resource reporting for integrated access and backhaul radio access dual connectivity.

[0113] like Figure 8 As shown, in some aspects, process 800 may include donation from a first IAB donor CU (e.g., Figure 7 The second IAB donor CU 705b and / or Figure 10 The device 1000 receives an instruction from the IAB node (e.g., Figure 7 The information of the first resource configuration used by the IAB node 715, which has a first connection with the first parent IAB node that is a child node of the first IAB donor CU (box 810). For example, the first network node (e.g., using...) Figure 10 The receiving component 1002 shown can receive information from the first IAB donor CU indicating the configuration of a first resource used by an IAB node, which has a first connection with a first parent IAB node that is a child node of the first IAB donor CU, as described herein.

[0114] like Figure 8As further shown, in some aspects, process 800 may include sending information to a second parent IAB node that is a child node of the first network node (box 820). For example, the first network node (e.g., using...) Figure 10 The sending component 1004 shown can send information to the second parent IAB node, which is a child node of the first network node, as described herein.

[0115] Process 800 may include additional aspects, such as those described below and / or any single aspect or any combination of aspects described in conjunction with one or more other process descriptions elsewhere herein.

[0116] In the first aspect, the first network node includes the second IAB donor CU.

[0117] In the second aspect, either alone or in combination with the first aspect, an IAB node includes an MT unit and a DU.

[0118] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 800 also includes sending (e.g., using sending component 1004) an acknowledgment to the first IAB donor CU that triggers a second connection between the IAB node and the second parent IAB node.

[0119] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 800 also includes determining (e.g., using...) Figure 10 The determination component 1008 shown is compatible with the first resource configuration and the second resource configuration used by the second parent IAB node, such that the confirmation is sent at least in part based on the determination that the first resource configuration and the second resource configuration are compatible.

[0120] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, IAB nodes use a dual-connection mode to establish the first and second connections.

[0121] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the first resource configuration indicates the combination of resources used by the IAB node for MT communication and resources used by the IAB node for DU communication.

[0122] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the first resource configuration indicates at least one resource used by the IAB node for MT communication.

[0123] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the information also indicates that the resource configuration used by the IAB node for DU communication is separate from at least one resource used by the IAB node for MT communication.

[0124] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the first resource allocation is used for a cell or a child node of an IAB node served by an IAB node.

[0125] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the information includes at least a portion of the cell resource configuration of the cell served by the IAB node, the configuration of the synchronization signal transmission associated with the cell, the channel state information reference signal configuration of the cell, the random access channel configuration of the cell, the scheduling request configuration of the cell, the downlink channel configuration of the cell, the subcarrier spacing for cell transmission, the system information message associated with the cell, or a combination thereof.

[0126] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the information also indicates the multiplexing capability associated with the IAB node.

[0127] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the multiplexing capability includes a multiplexing scheme between MT communication and DU communication of IAB nodes.

[0128] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the multiplexing capability includes a multiplexing scheme between at least one of the communication on the second connection between the IAB node and the second parent IAB node and the communication on the first connection or the DU communication of the IAB node.

[0129] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 800 also includes receiving (e.g., using receiving component 1002) from the first IAB donor CU information indicating the cell resource configuration of the cell served by the first parent IAB node of the IAB node.

[0130] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, process 800 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the resource configuration to be used by the IAB node on the second connection with the second parent IAB node.

[0131] In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, process 800 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the resource configuration to be used by the IAB node on the first connection.

[0132] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, process 800 also includes receiving (e.g., using receiving component 1002) information from the first IAB donor CU indicating the resource configuration to be used by the IAB node on a second connection with the second parent IAB node.

[0133] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 800 also includes receiving (e.g., using receiving component 1002) information from the first IAB donor CU indicating the cell resource configuration of the cell served by the IAB node.

[0134] In the nineteenth aspect, alone or in combination with one or more of the first and eighteenth aspects, process 800 further includes receiving (e.g., using receiving component 1002) confirmation of triggering a second connection between the IAB node and the second parent IAB node from the first IAB donor CU.

[0135] In the twentieth aspect, either alone or in combination with one or more of the first to nineteenth aspects, process 800 also includes receiving (e.g., using receiving component 1002) information from the first IAB donor CU indicating a new resource configuration used by the IAB node on the first connection.

[0136] In the twenty-first aspect, either alone or in combination with one or more of the first to twentieth aspects, process 800 further includes matching the resource configuration used on the second connection between the IAB node and the second parent IAB node with the first resource configuration (e.g., using...). Figure 10 The modified component 1010 shown, and the sending (e.g., using the sending component 1004) of the first IAB donor CU to trigger the confirmation of the second connection between the IAB node and the second parent IAB node.

[0137] In the twentieth aspect, either alone or in combination with one or more of the first to twenty-first aspects, process 800 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the resource configuration used by the IAB node on the second connection.

[0138] although Figure 8 The example box for process 800 is shown, but in some respects, process 800 may include additional boxes, fewer boxes, different boxes, or boxes similar to those in the example. Figure 8 The different arrangements of boxes depicted in the diagram. Alternatively, two or more boxes of process 800 may be executed in parallel.

[0139] Figure 9This is a diagram illustrating an exemplary process 900 performed, for example, by a first network node according to this disclosure. Exemplary process 900 is a first network node (e.g., a second IAB donor CU 705b and / or...). Figure 10 An example of the device 1000 performing operations associated with resource reporting for integrated access and backhaul radio access dual connectivity.

[0140] like Figure 9 As shown, in some aspects, process 900 may include sending funds to a first IAB donor CU associated with the first parent IAB node (e.g., first IAB donor CU 705a and / or...). Figure 10 The device 1000) sends data to the IAB node (e.g., Figure 7 The request is associated with IAB node 715, which has a first connection with a second parent IAB node that is a child node of the first network node (box 910). For example, the first network node (e.g., using...) Figure 10 The sending component 1004 shown can send a request associated with an IAB node to a first IAB donor CU associated with a first parent IAB node, which has a first connection with a second parent IAB node that is a child node of a first network node, as described herein.

[0141] like Figure 9 As further shown, in some aspects, process 900 may include sending information to the first IAB donor CU indicating a first resource configuration used by the IAB node (block 920). For example, the first network node (e.g., using sending component 1004) may send information to the first IAB donor CU indicating a first resource configuration used by the IAB node, as described herein.

[0142] Process 900 may include additional aspects, such as those described below and / or any single aspect or any combination of aspects described in conjunction with one or more other process descriptions elsewhere herein.

[0143] In the first aspect, the first network node includes the second IAB donor CU.

[0144] In the second aspect, either alone or in combination with the first aspect, an IAB node includes an MT unit and a DU.

[0145] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 900 also includes sending (e.g., using sending component 1004) an acknowledgment to the first IAB donor CU that triggers a second connection between the IAB node and the second parent IAB node.

[0146] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 900 also includes determining (e.g., using...) Figure 10 The determination component 1008 shown is compatible with the first resource configuration and the second resource configuration used by the first parent IAB node, such that the confirmation is sent at least in part based on the determination that the first resource configuration and the second resource configuration are compatible.

[0147] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, IAB nodes use a dual-connection mode to establish the first and second connections.

[0148] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the first resource configuration indicates the combination of resources used by the IAB node for MT communication and resources used by the IAB node for DU communication.

[0149] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the first resource configuration indicates at least one resource used by the IAB node for MT communication.

[0150] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the information also indicates that the resource configuration used by the IAB node for DU communication is separate from at least one resource used by the IAB node for MT communication.

[0151] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the first resource allocation is used for a cell or a child node of an IAB node served by an IAB node.

[0152] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the information includes at least a portion of the cell resource configuration of the cell served by the IAB node, the configuration of the synchronization signal transmission associated with the cell, the channel state information reference signal configuration of the cell, the random access channel configuration of the cell, the scheduling request configuration of the cell, the downlink channel configuration of the cell, the subcarrier spacing for cell transmission, the system information message associated with the cell, or a combination thereof.

[0153] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the information also indicates the multiplexing capability associated with the IAB node.

[0154] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the multiplexing capability includes a multiplexing scheme between MT communication and DU communication of IAB nodes.

[0155] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the multiplexing capability includes a multiplexing scheme between at least one of communication on a first connection and communication on a second connection between an IAB node and a first parent IAB node, or DU communication of an IAB node.

[0156] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 900 also includes sending (e.g., using transmission component 1004) to the first IAB donor CU information indicating the cell resource configuration of the cell served by the second parent IAB node of the IAB node.

[0157] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, process 900 also includes modifying (e.g., using) the information at least in part. Figure 10 The modified component 1010 shown is the cell resource configuration of the cell served by the second parent IAB node of the IAB node.

[0158] In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, process 900 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the resource configuration to be used by the IAB node on the second connection with the first parent IAB node.

[0159] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, process 900 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the resource configuration to be used by the IAB node on the first connection.

[0160] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 900 also includes receiving (e.g., using receiving component 1002) information from the first IAB donor CU indicating the resource configuration to be used by the IAB node on the first connection.

[0161] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, process 900 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the cell resource configuration of the cell served by the IAB node.

[0162] In the twentieth aspect, either alone or in combination with one or more of the first and nineteenth aspects, process 900 further includes receiving (e.g., using receiving component 1002) confirmation of a second connection triggered between the IAB node and the first parent IAB node from the first IAB donor CU.

[0163] In the twenty-first aspect, either alone or in combination with one or more of the first to twentieth aspects, process 900 also includes receiving (e.g., using receiving component 1002) information from the first IAB donor CU indicating the resource configuration used by the IAB node on the second connection.

[0164] In the twenty-second aspect, either alone or in combination with one or more of the first to twenty-first aspects, process 900 further includes matching the resource configuration used for the second connection between the IAB node and the first parent IAB node with the first resource configuration (e.g., using modification component 1010), and receiving (e.g., using receiving component 1002) confirmation of triggering the second connection between the IAB node and the second parent IAB node from the first IAB donor CU.

[0165] In the twentieth aspect, either alone or in combination with one or more of the first to twenty-second aspects, process 900 also includes sending (e.g., using sending component 1004) to the first IAB donor CU information indicating the resource configuration used by the IAB node on the first connection.

[0166] although Figure 9 An exemplary box of process 900 is shown, but in some aspects, process 900 may include additional boxes, fewer boxes, different boxes, or boxes similar to those shown. Figure 9 The different arrangements of boxes depicted in the diagram. Alternatively, two or more boxes in process 900 may be executed in parallel.

[0167] Figure 10 This is a diagram of an exemplary device 1000 for wireless communication. Device 1000 may be a network node (such as an IAB donor CU), or a network node may include device 1000. In some aspects, device 1000 includes a receiving component 1002 and a transmitting component 1004, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1000 can use the receiving component 1002 and the transmitting component 1004 to communicate with another device 1006 (such as another network node, another IAB donor CU, or another wireless communication device). As further shown, device 1000 may include one or more of a determining component 1008 and / or a modifying component 1010, etc.

[0168] In some respects, device 1000 can be configured to perform the functions described herein. Figure 7 One or more operations described herein. Additionally or alternatively, the device 1000 may be configured to perform one or more processes described herein, such as Figure 8 The process 800 Figure 9 The process 900 or a combination thereof. In some respects, Figure 10 The device 1000 and / or one or more components shown may include combinations Figure 2 One or more components of the described base station. Alternatively or concurrently, Figure 10 One or more components shown can be combined Figure 2 Implemented within one or more of the aforementioned components. Alternatively or additionally, one or more of the components in this group may be implemented at least partially as software stored in memory. For example, a component (or a portion thereof) 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.

[0169] Receiver 1002 may receive communications from device 1006, such as reference signals, control information, data communications, or combinations thereof. Receiver 1002 may provide the received communications to one or more other components of device 1000. In some aspects, receiver 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding), and may provide the processed signals to one or more other components of device 1000. In some aspects, receiver 1002 may include combinations of... Figure 2 The described base station includes one or more antennas, modems, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0170] Transmitting component 1004 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1006. In some aspects, one or more other components of device 1000 can generate communications and provide the generated communications to transmitting component 1004 for transmission to device 1006. In some aspects, transmitting component 1004 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) on ​​the generated communications and can transmit the processed signals to device 1006. In some aspects, transmitting component 1004 may include combinations of... Figure 2 The described base station includes one or more antennas, modems, demodulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1004 may co-address with the receive component 1002 in the transceiver.

[0171] In some respects, device 1000 may be a second IAB donor CU (e.g., Figure 7 The second IAB donor CU 705b). Therefore, the receiving component 1002 can be received from the device 1006 (e.g., Figure 7The first IAB donor CU 705a) receives an instruction from an IAB node (e.g., Figure 7 The IAB node 715 uses information about a first resource configuration, and this IAB node has a first connection with a first parent IAB node that is a child node of the first IAB donor CU. Therefore, the sending component 1004 can send information to a second parent IAB node that is a child node of the first network node.

[0172] In some aspects, the transmitting component 1004 may send an acknowledgment to the device 1006 that triggers a second connection between the IAB node and the second parent IAB node. For example, the determining component 1008 may determine that the first resource configuration is compatible with the second resource configuration used by the second parent IAB node, such that the transmitting component 1004 sends the acknowledgment at least in part based on the determining component 1008's determination that the first resource configuration is compatible with the second resource configuration. The determining component 1008 may include a combination of Figure 2 The network node described includes a MIMO detector, a receive processor, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof.

[0173] In some aspects, receiving component 1002 can receive from device 1006 information indicating the cell resource configuration of a cell served by a first parent IAB node of the IAB node. Alternatively, transmitting component 1004 can send to device 1006 information indicating resource configuration to be used by the IAB node on a second connection with a second parent IAB node. Alternatively, transmitting component 1004 can send to device 1006 information indicating resource configuration to be used by the IAB node on a first connection. Alternatively, receiving component 1002 can receive from device 1006 information indicating resource configuration to be used by the IAB node on a second connection with a second parent IAB node. Alternatively, receiving component 1002 can receive from device 1006 information indicating the cell resource configuration of a cell served by the IAB node.

[0174] In some respects, receiving component 1002 can receive from device 1006 an acknowledgment that triggers a second connection between the IAB node and the second parent IAB node. Additionally, receiving component 1002 can receive from device 1006 information indicating new resource configurations used by the IAB node on the first connection.

[0175] In some aspects, the modification component 1010 can match the resource configuration used on the second connection between the IAB node and the second parent IAB node with the first resource configuration. The modification component 1010 may include combining... Figure 2The described network node includes a modem, MIMO detector, receive processor, transmit MIMO processor, transmit processor, controller / processor, memory, or combinations thereof. Therefore, the transmit component 1004 can send an acknowledgment to the device 1006 that triggers a second connection between the IAB node and the second parent IAB node. Additionally, in some aspects, the transmit component 1004 can send information to the device 1006 indicating the resource configuration used by the IAB node on the second connection.

[0176] Alternatively, device 1000 may be a first IAB donor CU (e.g., Figure 7 (IAB donor CU 705a). Therefore, the transmitting component 1004 can send to the device 1006 (e.g., Figure 7 The second IAB donor (CU705b) associated with the first parent IAB node sends a request associated with the IAB node, which has a first connection with the second parent IAB node, which is a child node of the first network node. Therefore, the sending component 1004 can send information to the device 1006 indicating the first resource configuration used by the IAB node.

[0177] In some respects, the transmitting component 1004 may send an acknowledgment to the device 1006 that triggers a second connection between the IAB node and the first parent IAB node. For example, the determining component 1008 may determine that the first resource configuration is compatible with a second resource configuration used by the first parent IAB node, such that the transmitting component 1004 sends the acknowledgment at least in part based on the determining component 1008's determination that the first resource configuration is compatible with the second resource configuration.

[0178] In some aspects, transmitting component 1004 may send to device 1006 information indicating the cell resource configuration of a cell served by a second parent IAB node of the IAB node. In some aspects, modifying component 1010 may modify the cell resource configuration of the cell served by the second parent IAB node of the IAB node based at least in part on this information. Alternatively, transmitting component 1004 may send to device 1006 information indicating the resource configuration to be used by the IAB node on a second connection with the first parent IAB node. Alternatively, transmitting component 1004 may send to device 1006 information indicating the resource configuration to be used by the IAB node on a first connection. Alternatively, receiving component 1002 may receive from device 1006 the information indicating the resource configuration to be used by the IAB node on the first connection. Alternatively, transmitting component 1004 may send to device 1006 information indicating the cell resource configuration of a cell served by the IAB node.

[0179] In some respects, receiving component 1002 can receive from device 1006 an acknowledgment that triggers the second connection between the IAB node and the first parent IAB node. Therefore, receiving component 1002 can receive from device 1006 information indicating the resource configuration used by the IAB node on the second connection.

[0180] In some aspects, the modification component 1010 can match the resource configuration used on the second connection between the IAB node and the first parent IAB node with the first resource configuration. Therefore, the receiving component 1002 can receive from the device 1006 an acknowledgment that triggers the second connection between the IAB node and the second parent IAB node. Additionally, in some aspects, the sending component 1004 can send to the device 1006 information indicating the resource configuration used by the IAB node on the first connection.

[0181] supply Figure 10 The number and arrangement of components shown are for illustrative purposes only. In practice, additional components, fewer components, different components, or components may exist. Figure 10 The components are arranged in different ways as shown. Furthermore, it is possible to implement this within a single component. Figure 10 The two or more components shown, or Figure 10 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 10 The set (one or more) components shown can perform actions described by Figure 10 The other set of components shown performs one or more functions.

[0182] The following provides an overview of some aspects of this disclosure:

[0183] Aspect 1: A wireless communication method performed by a first network node, the method comprising: receiving from a first Integrated Access and Backhaul (IAB) donor central unit (CU) information indicating a first resource configuration used by an IAB node, the IAB node having a first connection with a first parent IAB node that is a child node of the first IAB donor CU; and sending the information to a second parent IAB node that is a child node of the first network node.

[0184] Aspect 2: According to the method of aspect 1, the first network node includes a second IAB donor CU.

[0185] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the IAB node includes a mobile terminal (MT) unit and a distributed unit (DU).

[0186] Aspect 4: The method according to any one of Aspects 1 to 3, the method further comprising: sending an acknowledgment to the first IAB donor CU that triggers a second connection between the IAB node and the second parent IAB node.

[0187] Aspect 5: According to the method of aspect 4, the method further includes: determining that the first resource configuration is compatible with a second resource configuration used by the second parent IAB node, wherein the confirmation is sent at least in part based on the determination that the first resource configuration is compatible with the second resource configuration.

[0188] Aspect 6: The method according to any one of Aspects 4 to 5, wherein the IAB node uses a dual-connection mode to establish the first connection and the second connection.

[0189] Aspect 7: The method according to any one of Aspects 1 to 6, wherein the first resource configuration indicates the combination of resources used by the IAB node for mobile terminal (MT) communication and resources used by the IAB node for distributed unit (DU) communication.

[0190] Aspect 8: The method according to any one of Aspects 1 to 6, wherein the first resource configuration indicates at least one resource used by the IAB node for mobile terminal (MT) communication.

[0191] Aspect 9: According to the method of aspect 8, wherein the information further indicates that the resource configuration used by the IAB node for distributed unit (DU) communication is separate from the at least one resource used by the IAB node for MT communication.

[0192] Aspect 10: The method according to any one of Aspects 1 to 9, wherein the first resource configuration is for a cell served by the IAB node or a child node of the IAB node.

[0193] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the information includes: cell resource configuration of the cell served by the IAB node, configuration of synchronization signal transmission associated with the cell, channel state information reference signal configuration of the cell, random access channel configuration of the cell, scheduling request configuration of the cell, downlink channel configuration of the cell, subcarrier spacing for transmission in the cell, at least a portion of system information messages associated with the cell, or a combination thereof.

[0194] Aspect 12: The method according to any one of Aspects 1 to 11, wherein the information further indicates the multiplexing capability associated with the IAB node.

[0195] Aspect 13: According to the method of aspect 12, the multiplexing capability includes a multiplexing scheme between the mobile terminal (MT) communication and the distributed unit (DU) communication of the IAB node.

[0196] Aspect 14: The method according to aspect 12, wherein the multiplexing capability includes a multiplexing scheme between at least one of communication on the second connection between the IAB node and the second parent IAB node and communication on the first connection or communication of the distributed unit (DU) of the IAB node.

[0197] Aspect 15: The method according to any one of Aspects 1 to 14, the method further comprising: receiving from the first IAB donor CU information indicating cell resource configuration of a cell served by the first parent IAB node of the IAB node.

[0198] Aspect 16: The method according to any one of Aspects 1 to 15, the method further comprising: sending to the first IAB donor CU information indicating resource configuration to be used by the IAB node on a second connection with the second parent IAB node.

[0199] Aspect 17: The method according to any one of Aspects 1 to 16, the method further comprising: sending information to the first IAB donor CU indicating resource configuration to be used by the IAB node on the first connection.

[0200] Aspect 18: The method according to any one of Aspects 1 to 17, the method further comprising: receiving from the first IAB donor CU information indicating resource configuration to be used by the IAB node on a second connection with the second parent IAB node.

[0201] Aspect 19: The method according to any one of Aspects 1 to 18, the method further comprising: receiving from the first IAB donor CU information indicating the cell resource configuration of the cell served by the IAB node.

[0202] Aspect 20: The method according to any one of aspects 1 to 19, the method further comprising: receiving from the first IAB donor CU an acknowledgment of triggering a second connection between the IAB node and the second parent IAB node.

[0203] Aspect 21: The method according to aspect 20, the method further comprising: receiving from the first IAB donor CU information indicating a new resource configuration used by the IAB node on the first connection.

[0204] Aspect 22: The method according to any one of Aspects 1 to 19, the method further comprising: matching a resource configuration used for the second connection between the IAB node and the second parent IAB node with the first resource configuration; and sending an acknowledgment to the first IAB donor CU that triggers the second connection between the IAB node and the second parent IAB node.

[0205] Aspect 23: According to the method of aspect 22, the method further includes: sending information to the first IAB donor CU indicating the resource configuration used by the IAB node on the second connection.

[0206] Aspect 24: A wireless communication method performed by a first network node, the method comprising: receiving a request associated with an IAB node from a first Integrated Access and Backhaul (IAB) donor central unit (CU) associated with a first parent IAB node, the IAB node having a first connection with a second parent IAB node that is a child node of the first network node; and sending information to the first IAB donor CU indicating a first resource configuration used by the IAB node.

[0207] Aspect 25: The method according to aspect 24, wherein the first network node includes a second IAB donor CU.

[0208] Aspect 26: The method according to any one of Aspects 24 to 25, wherein the IAB node comprises a mobile terminal (MT) unit and a distributed unit (DU).

[0209] Aspect 27: The method according to any one of Aspects 24 to 26, the method further comprising: sending to the first IAB donor CU an acknowledgment that triggers a second connection between the IAB node and the first parent IAB node.

[0210] Aspect 28: The method according to aspect 27, the method further comprising: determining that the first resource configuration is compatible with a second resource configuration used by the first parent IAB node, wherein the confirmation is sent at least in part based on the determination that the first resource configuration is compatible with the second resource configuration.

[0211] Aspect 29: The method according to any one of Aspects 27 to 28, wherein the IAB node uses a dual-connection mode to establish the first connection and the second connection.

[0212] Aspect 30: The method according to any one of Aspects 24 to 29, wherein the first resource configuration indicates the combination of resources used by the IAB node for mobile terminal (MT) communication and resources used by the IAB node for distributed unit (DU) communication.

[0213] Aspect 31: The method according to any one of Aspects 24 to 29, wherein the first resource configuration indicates at least one resource used by the IAB node for mobile terminal (MT) communication.

[0214] Aspect 32: According to the method of aspect 31, wherein the information further indicates that the resource configuration used by the IAB node for distributed unit (DU) communication is separate from the at least one resource used by the IAB node for MT communication.

[0215] Aspect 33: The method according to any one of Aspects 24 to 32, wherein the first resource configuration is for a cell served by the IAB node or a child node of the IAB node.

[0216] Aspect 34: The method according to any one of Aspects 24 to 33, wherein the information includes: cell resource configuration of the cell served by the IAB node, configuration of synchronization signal transmission associated with the cell, channel state information reference signal configuration of the cell, random access channel configuration of the cell, scheduling request configuration of the cell, downlink channel configuration of the cell, subcarrier spacing for transmission in the cell, at least a portion of system information messages associated with the cell, or a combination thereof.

[0217] Aspect 35: The method according to any one of Aspects 24 to 34, wherein the information further indicates the multiplexing capability associated with the IAB node.

[0218] Aspect 36: According to the method of aspect 35, the multiplexing capability includes a multiplexing scheme between the mobile terminal (MT) communication and the distributed unit (DU) communication of the IAB node.

[0219] Aspect 37: The method according to aspect 35, wherein the multiplexing capability includes a multiplexing scheme between at least one of communication on the first connection and communication on a second connection between the IAB node and the first parent IAB node or communication of the distributed unit (DU) of the IAB node.

[0220] Aspect 38: The method according to any one of Aspects 24 to 37, the method further comprising: sending to the first IAB donor CU information indicating the cell resource configuration of the cell served by the second parent IAB node of the IAB node.

[0221] Aspect 39: The method according to aspect 38 further includes: modifying the cell resource configuration of the cell served by the second parent IAB node of the IAB node based at least in part on the information.

[0222] Aspect 40: The method according to any one of aspects 24 to 39, the method further comprising: sending to the first IAB donor CU information indicating resource configuration to be used by the IAB node on a second connection with the first parent IAB node.

[0223] Aspect 41: The method according to any one of Aspects 24 to 40, the method further comprising: sending information to the first IAB donor CU indicating resource configuration to be used by the IAB node on the first connection.

[0224] Aspect 42: The method according to any one of aspects 24 to 41, the method further comprising: receiving from the first IAB donor CU information indicating resource configuration to be used by the IAB node on the first connection.

[0225] Aspect 43: The method according to any one of Aspects 24 to 42, the method further comprising: sending to the first IAB donor CU information indicating the cell resource configuration of the cell served by the IAB node.

[0226] Aspect 44: The method according to any one of aspects 24 to 43, the method further comprising: receiving from the first IAB donor CU an acknowledgment of triggering a second connection between the IAB node and the first parent IAB node.

[0227] Aspect 45: The method according to aspect 44, the method further comprising: receiving from the first IAB donor CU information indicating resource configuration used by the IAB node on the second connection.

[0228] Aspect 46: The method according to any one of Aspects 24 to 43, the method further comprising: matching a resource configuration used for the second connection between the IAB node and the first parent IAB node with the first resource configuration; and receiving from the first IAB donor CU an acknowledgment of triggering the second connection between the IAB node and the second parent IAB node.

[0229] Aspect 47: The method according to aspect 46 further includes: sending information to the first IAB donor CU indicating the resource configuration used by the IAB node on the first connection.

[0230] Aspect 48: An apparatus for communicating at a device, the apparatus 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 one or more of the methods described in aspects 1 to 23.

[0231] Aspect 49: A device for communication, the device comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform the method according to one or more of aspects 1 to 23.

[0232] Aspect 50: An apparatus for communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 23.

[0233] Aspect 51: A non-transitory computer-readable medium storing code for communication, said code including instructions executable by a processor to perform the methods described in one or more of aspects 1 to 23.

[0234] Aspect 52: A non-transitory computer-readable medium storing a set of instructions for communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 23.

[0235] Aspect 53: An apparatus for communicating at a device, the apparatus 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 one or more of the methods described in aspects 24 to 47.

[0236] Aspect 54: A device for communication, the device including a memory and one or more processors coupled to the memory, the one or more processors being configured to perform the method according to one or more of aspects 24 to 47.

[0237] Aspect 55: An apparatus for communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 24 to 47.

[0238] Aspect 56: A non-transitory computer-readable medium storing code for communication, said code including instructions executable by a processor to perform the methods described in one or more of aspects 24 to 47.

[0239] Aspect 57: A non-transitory computer-readable medium storing a set of instructions for communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 24 to 47.

[0240] The foregoing disclosure provides illustrations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations can be made based on the foregoing disclosure, or modifications and variations can be derived from practice in the aspects.

[0241] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. "Software" should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, application programs, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, programs and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other forms. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It is evident that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited to these aspects. Therefore, the operation and behavior of systems and / or methods are described herein without reference to specific software code, as those skilled in the art will understand that software and hardware can be designed to implement systems and / or methods at least in part based on the descriptions herein.

[0242] As used in this article, depending on the context, "meeting the threshold" can refer to a value that is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0243] Although specific combinations of features are recited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. Many of these features may be combined in ways not specifically recited in the claims and / or disclosed in the specification. Disclosure of aspects includes each dependent claim in combination with each claim in the claim set. As used herein, the phrase “at least one of” in the list of items refers to any combination of these items, including a single member. As an example, “at least one of a, b, or c” is intended to cover any combination of a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination of multiples of the same element (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0244] No element, action, or instruction used herein should be construed as critical or essential unless explicitly stated otherwise. Furthermore, as used herein, the article “a / an” is intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items mentioned in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” If only one item is intended, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “has, have, having,” etc., are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Additionally, the phrase “based on” is intended to mean “at least partially based on” unless explicitly stated otherwise. Furthermore, as used herein, unless otherwise explicitly stated (e.g., if used in conjunction with “any” or “any one of…”), the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or”.

Claims

1. An apparatus for communicating at a network node, the apparatus comprising: One or more memories storing processor-executable code; and One or more processors, coupled to the one or more memories, wherein at least one of the one or more processors is configured such that the network node: Receives first information from the Integrated Access and Backhaul IAB donor central unit (CU) indicating the first resource used by an IAB node, the IAB node having a first connection to a first parent IAB node and a second connection to a second parent IAB node. Send the first information to the second parent IAB node; as well as Send second information to the IAB donor CU indicating a second resource to be used by the IAB node, wherein the second information indicates that the IAB donor CU should send third information to the first parent IAB node indicating a third resource associated with the IAB node.

2. The apparatus of claim 1, wherein at least one of the one or more processors is further configured such that the network node: Receive an acknowledgment associated with the first information from the second parent IAB node.

3. The apparatus of claim 1, wherein the network node is another IAB donor CU.

4. The apparatus of claim 1, wherein at least one of the one or more processors is further configured such that the network node: The IAB donor CU receives fourth information indicating the cell resource configuration of the cell served by the second parent IAB node.

5. The apparatus of claim 1, wherein at least one of the one or more processors is further configured such that the network node: Send fourth information to the IAB donor CU indicating the cell resource configuration of the cell served by the IAB node.

6. The apparatus of claim 1, wherein at least one of the one or more processors is further configured such that the network node: Send fourth information to the IAB donor CU indicating the cell resource configuration of the cell served by the first parent IAB node.

7. The apparatus of claim 1, wherein at least one of the one or more processors is further configured such that the network node: Adjust the cell resource configuration of the cell served by the second parent IAB node based on the first information.

8. The apparatus of claim 1, wherein the network node is an F1 terminating donor.

9. An apparatus for communicating at a network node, the apparatus comprising: One or more memories storing processor-executable code; and One or more processors, coupled to the one or more memories, wherein at least one of the one or more processors is configured such that the network node: Send first information about a first resource to be used by an IAB node to the IAB donor central unit (CU) associated with a first parent integrated access and backhaul IAB node, the IAB node having a first connection to the first parent IAB node and a second connection to a second parent IAB node. Receive second information from the IAB donor CU indicating a second resource to be used by the IAB node on the first connection; as well as Send third information to the second parent IAB node, indicating the third resource associated with the IAB node.

10. The apparatus of claim 9, wherein the network node is another IAB donor CU.

11. The apparatus of claim 9, wherein at least one of the one or more processors is further configured such that the network node: Send fourth information to the IAB donor CU indicating the cell resource configuration of the cell served by the second parent IAB node.

12. The apparatus of claim 9, wherein at least one of the one or more processors is further configured such that the network node: The IAB donor CU receives fourth information indicating the cell resource configuration of the cell served by the IAB node.

13. The apparatus of claim 9, wherein at least one of the one or more processors is further configured such that the network node: The IAB donor CU receives fourth information indicating the cell resource configuration of the cell served by the first parent IAB node.

14. The apparatus of claim 9, wherein the network node is a non-F1 termination donor.

15. The apparatus of claim 9, wherein at least one of the one or more processors is further configured such that the network node: Receive an acknowledgment associated with the first information from the IAB donor CU.

16. A method for wireless communication performed by a network node, the method comprising: Receives first information from the Integrated Access and Backhaul IAB donor central unit (CU) indicating the first resource used by an IAB node, the IAB node having a first connection to a first parent IAB node and a second connection to a second parent IAB node. Send the first information to the second parent IAB node; as well as Send second information to the IAB donor CU indicating a second resource to be used by the IAB node, wherein the second information indicates that the IAB donor CU should send third information to the first parent IAB node indicating a third resource associated with the IAB node.

17. The method of claim 16, comprising: Receive an acknowledgment associated with the first information from the second parent IAB node.

18. The method of claim 16, wherein the network node is another IAB donor CU.

19. The method of claim 16, comprising: The IAB donor CU receives fourth information indicating the cell resource configuration of the cell served by the second parent IAB node.

20. The method of claim 16, comprising: Send fourth information to the IAB donor CU indicating the cell resource configuration of the cell served by the IAB node.

21. The method of claim 16, comprising: Send fourth information to the IAB donor CU indicating the cell resource configuration of the cell served by the first parent IAB node.

22. The method of claim 16, comprising: Adjust the cell resource configuration of the cell served by the second parent IAB node based on the first information.

23. The method of claim 16, wherein the network node is an F1 terminating donor.

24. A method for wireless communication performed by a network node, the method comprising: Send first information about a first resource to be used by an IAB node to the IAB donor central unit (CU) associated with a first parent integrated access and backhaul IAB node, the IAB node having a first connection to the first parent IAB node and a second connection to a second parent IAB node. Receive second information from the IAB donor CU indicating a second resource to be used by the IAB node on the first connection; as well as Send third information to the second parent IAB node, indicating the third resource associated with the IAB node.

25. The method of claim 24, wherein the network node is another IAB donor CU.

26. The method of claim 24, comprising: Send fourth information to the IAB donor CU indicating the cell resource configuration of the cell served by the second parent IAB node.

27. The method of claim 24, comprising: The IAB donor CU receives fourth information indicating the cell resource configuration of the cell served by the IAB node.

28. The method of claim 24, comprising: The IAB donor CU receives fourth information indicating the cell resource configuration of the cell served by the first parent IAB node.

29. The method of claim 24, wherein the network node is a non-F1 terminating donor.

30. The method of claim 24, comprising: Receive an acknowledgment associated with the first information from the IAB donor CU.

31. An apparatus for communicating at a network node, the apparatus comprising components for performing the method of any one of claims 16 to 23.

32. An apparatus for communicating at a network node, the apparatus comprising components for performing the method of any one of claims 24 to 30.

33. A computer-readable medium comprising processor-readable instructions that cause a processor of a network node to perform the method of any one of claims 16 to 23.

34. A computer-readable medium comprising processor-readable instructions that cause a processor of a network node to perform the method of any one of claims 24 to 30.

35. A computer program product comprising computer-readable instructions that, when executed by a processor of a network node, cause the processor to perform the method of any one of claims 16 to 23.

36. A computer program product comprising computer-readable instructions that, when executed by a processor of a network node, cause the processor to perform the method of any one of claims 24 to 30.

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