Repeater digital processing mode

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a relay may send an indication of a set of candidate digital processing modes supported by the relay, the set of candidate digital processing modes including digital processing modes that include one or more impairment correction operations. The repeater may receive an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. non-provisional patent application No. 17 / 934,790, entitled “REPEATER DIGITAL PROCESSING MODES,” filed on September 23, 2022, which is hereby expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for repeater digital processing modes. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may 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 set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).

[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by: improving spectrum efficiency; reducing costs; improving services; utilizing new spectrum; and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink, CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink to better integrate with other open standards; and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0007] Some aspects described herein relate to a method of wireless communication performed by a repeater. The method may include sending an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: direct current (DC) offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive low noise amplifier (LNA), gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain residual sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The method may include receiving an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0008] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include receiving an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The method may include sending an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0009] Some aspects described herein relate to a repeater for wireless communications. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The one or more processors may be configured to receive an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0010] Some aspects described herein relate to a network node for wireless communications. The network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The one or more processors may be configured to send an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a repeater. The set of instructions, when executed by one or more processors of the UE, may cause the UE to: send an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The set of instructions, when executed by one or more processors of the UE, may cause the UE to: receive an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to: receive an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The set of instructions, when executed by one or more processors of the network node, may cause the network node to: send an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending an indication of a set of candidate digital processing modes supported by the apparatus, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The apparatus may include means for receiving an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, FDRSB correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal. The apparatus may include means for sending an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0015] Aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.

[0016] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of limitations to the claims.

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

[0018] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention 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 accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

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

[0020] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0022] Figure 4 is a diagram illustrating an example of a forwarding node (eg, a repeater or relay node) that forwards communications between a first wireless node and a second wireless node according to the present disclosure.

[0023] Figure 5 is a diagram illustrating an example of a transmit (Tx) chain and a receive (Rx) chain of a forwarding node implemented as a repeater according to the present disclosure.

[0024] Figure 6 is a diagram of an example associated with a repeater digital processing mode according to the present disclosure.

[0025] Figure 7 is a diagram illustrating an example of a Tx chain and an Rx chain of a repeater according to the present disclosure.

[0026] Figure 8 is a diagram illustrating an example process performed, for example, by a repeater according to the present disclosure.

[0027] Fig. 9 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.

[0028] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0029] Fig.11 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0030] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functions, or structures and functions in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0031] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "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 overall system.

[0032] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs beyond 5G (e.g., 6G).

[0033] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 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 entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0034] In some examples, the network node 110 is or includes a network node (such as an RU) that communicates with the UE 120 via a radio access link. In some examples, the network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, the network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with the core network via a backhaul link. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. The network node 110 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, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul, midhaul, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.

[0035] In some examples, the network node 110 can provide communication coverage for a specific geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of ​​the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 can provide communication coverage for a macro cell, a micro cell, a femto cell, 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 by a UE 120 with a service subscription. A micro cell can cover a relatively small geographic area and can allow unrestricted access by a UE 120 with a service subscription. A femto cell can cover a relatively small geographic area (e.g., a home) and can allow restricted access by a UE 120 associated with a femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell can be referred to as a macro network node. A network node 110 for a micro cell can be referred to as a micro network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0036] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.

[0037] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1In the example shown, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communication between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0038] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0039] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be, or may include, a CU or a core network device.

[0040] UE 120 can be distributed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, an access terminal, a terminal, a mobile station and / or a subscriber unit. UE 120 can be a cellular phone (e.g., a smart phone), 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 smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a 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, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node and / or any other suitable device configured to communicate via a wireless or wired medium.

[0041] Some UE 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UE. MTC UE and / or eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor and / or a location tag, which may communicate with a network node, another device (e.g., a remote device) or some other entity. Some UE 120 may be considered as an Internet of Things (IoT) device and / or may be implemented as a NB-IoT (narrowband IoT) device. Some UE 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operationally coupled, communicatively coupled, electronically coupled and / or electrically coupled.

[0042] Generally speaking, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, an air interface, etc. Frequency may be referred to as a carrier, a frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0043] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more side link channels (e.g., without using network node 110 as an intermediary to communicate with each other). For example, UE 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) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0044] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that, although portions of FR1 are greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. Similar naming issues sometimes occur with reference to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0045] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz–71GHz), FR4 (52.6GHz–114.25GHz) and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.

[0046] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term can be broadly representative of frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term can be broadly representative of frequencies that may include mid-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 the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0047] In some aspects, the repeater may include a communication manager 140. As described in greater detail elsewhere herein, the communication manager 140 may: send an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital predistortion correction of a transmitted signal; and receive an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0048] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may: receive an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital predistortion correction of a transmitted signal; and send an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0049] As indicated above, Figure 1 is provided as an example. Other examples can be found in the Figure 1 The content described is different.

[0050] Figure 22 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 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). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0051] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may 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 may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may 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).

[0052] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) can receive downlink signals from the network node 110 and / or other network nodes 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 the 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 input samples. Each modem 254 can use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 can obtain received symbols from the modem 254, can perform MIMO detection on the received symbols where applicable, and can provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0053] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0054] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2One or more antenna elements of one or more components in.

[0055] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, reference Figures 6 to 11 )Aspects of any of the methods described herein.

[0056] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a 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 operations described herein (e.g., with reference to Figures 6 to 11 )Aspects of any of the methods described herein.

[0057] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in the may perform one or more techniques associated with the repeater digital processing mode, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the can perform or direct e.g. Figure 8 The process of 800 Fig. 9 900 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 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 wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 8 The process of 800 Fig. 9 The operations of the process 900 and / or other processes described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0058] In some aspects, the repeater includes components for: sending an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal; and / or components for: receiving an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications. In some aspects, means for a relay to perform operations described herein may include, for example, components associated with a network node, such as one or more of the communications manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246. In some aspects, means for a relay to perform operations described herein may include, for example, components associated with a UE, such as one or more of the communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0059] In some aspects, the network node includes components for: receiving an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal; and / or components for: sending an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications. Means for a network node to perform operations described herein may include, for example, one or more of the following: a communication manager 150, 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.

[0060] Although Figure 2 The blocks in the 200 and 210 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0061] As indicated above, Figure 2 is provided as an example. Other examples can be found in the Figure 2 The content described is different.

[0062] The deployment of communication systems such as 5G NR systems can be arranged in a variety of ways with various components or components. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) performing base station functionality can be implemented as an aggregated base station (also called an independent base station or a monolithic base station) or a decomposed base station. A "network entity" or a "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs or a combination thereof).

[0063] An aggregated base station (e.g., an aggregated network node) can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) can be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU can be implemented within a network node, and one or more DUs can be co-located with the CU, or alternatively, can be geographically or virtually distributed across one or more other network nodes. The DU can be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0064] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate scaling of the communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0065] Figure 3 3 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units, such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0066] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, the wireless interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, or both.

[0067] In some aspects, CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by CU 310. CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 310 may be implemented to communicate with DU 330 for network control and signaling.

[0068] Each DU 330 may correspond to a logical unit including one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional partitioning (such as a functional partitioning defined by 3GPP). In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as by one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0069] Each RU 340 may implement lower layer functionality. In some deployments, a RU 340 controlled by a DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. based on a functional split (e.g., a functional split defined by 3GPP) (such as a lower layer functional split). In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some implementations, real-time and non-real-time aspects of communicating with the control plane and user plane of the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0070] The SMO framework 305 may be configured to support RAN deployment and configuration of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via an O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0071] The non-RT RIC 315 may be configured to include logic functions that implement non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or in communication with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that implement near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0072] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0073] As indicated above, Figure 3 is provided as an example. Other examples can be found in the Figure 3 The content described is different.

[0074] Figure 4 4 is a diagram illustrating an example 400 of a forwarding node (e.g., a repeater or relay node) that forwards communications between a first wireless node and a second wireless node according to the present disclosure. As shown, the example 400 includes a first wireless node 405 (e.g., an IAB node, an IAB donor, a network node 110, a UE 120, etc.), a forwarding node 410 (e.g., a repeater device, a relay device, a network node 110, a UE 120, a millimeter wave (mmWave) repeater, a mmWave relay, a digital repeater, an analog repeater, a digital relay, an analog relay, etc.), and a second wireless node 415 (e.g., an IAB node, an IAB donor, a network node 110, a UE 120, another forwarding node 410, etc.). In some aspects, the first wireless node 405 and / or the second wireless node 415 may be aware of the forwarding node 410. In some aspects, the first wireless node 405 and / or the second wireless node 415 may not be aware of the forwarding node 410.

[0075] like Figure 4 As shown, the first wireless node 405 may have a communication 420 (e.g., a data communication, a control communication, etc.) that is sent to the second wireless node 415 using a direct link 425 (e.g., an access link, etc.) between the first wireless node 405 and the second wireless node 415. However, the first wireless node 405 may not be able to send the communication 420 to the second wireless node 415 using the direct link 425. For example, the second wireless node 415 may be out of the transmission range of the first wireless node 405, the direct link 425 may be blocked, etc.

[0076] Thus, the first wireless node 405 may communicate with the second wireless node 415 using the indirect link 430. For example, the first wireless node 405 may send a communication 420 to the forwarding node 410. In some aspects, the first wireless node 405 may send the communication 420 directly to the forwarding node 410 (e.g., where the first wireless node 405 is aware of the forwarding node 410). In some aspects, the forwarding node 410 may be configured (e.g., by a control node, by the second wireless node 415, etc.) to receive the communication 420 from the first wireless node 405 (e.g., where the first wireless node 405 is not aware of the forwarding node 410).

[0077] like Figure 4 As shown, communication 420 can arrive at forwarding node 410 and be forwarded by forwarding node 410. In some aspects, forwarding node 410 is a repeater (or repeater unit), and the repeater can regenerate the signal of communication 420. For example, the repeater can receive the signal of communication 420, extract the tone from the signal, regenerate the signal based at least in part on the extracted tone, and send the regenerated signal. In some aspects, forwarding node 410 is a relay node (or relay unit), and the relay node can generate a new signal based at least in part on the signal of communication 420. For example, the relay node can receive a downlink signal carrying information associated with the communication (e.g., in-phase and quadrature (IQ) samples), generate a new signal based at least in part on the information, and send the new signal. As another example, the relay node can receive an uplink signal, generate a new signal carrying information associated with the uplink signal (e.g., IQ samples), and send the new signal.

[0078] In some cases, the indirect link 430 may be an access link, a side link, or a fronthaul link. For example, if the first wireless node 405 is the network node 110 and the second wireless node 415 is the UE 120, the indirect link 430 between the first wireless node 405 and the forwarding node 410 may be a fronthaul link. The indirect link 430 between the forwarding node 410 and the second wireless node 415 may be an access link. Figure 4 The illustrated communication scheme may improve network performance and reliability by providing link diversity for communication to the first wireless node 405 and / or the second wireless node 415, by extending the communication coverage area of ​​the first wireless node 405 and / or the second wireless node 415, and so on.

[0079] As indicated above, Figure 4 are provided as examples. Other examples can be found in Figure 4 The content described is different.

[0080] Figure 5is a diagram illustrating an example 500 of a transmit (Tx) chain 502 and a receive (Rx) chain 504 of a forwarding node implemented as a repeater according to the present disclosure.

[0081] In some examples, one or more components of Tx chain 502 may be combined as described above. Figure 2 The described transmit processor 220, TX MIMO processor 230, MOD / DEMOD 232, controller / processor 240, etc. are implemented. In some examples, Tx chain 502 can be implemented in a repeater for transmitting outgoing signals associated with a relay operation performed by the repeater (e.g., uplink data, downlink data, uplink reference signal, downlink reference signal, uplink control information, downlink control information, etc.).

[0082] In some examples, one or more components of Rx chain 504 may be combined as described above. Figure 2 The described receive processor 238, MIMO detector 236, MOD / DEMOD 232, controller / processor 240, etc. are implemented. In some examples, Rx chain 504 can be implemented in a repeater for receiving incoming signals associated with a relay operation performed by the repeater (e.g., downlink data, uplink data, downlink reference signal, uplink reference signal, downlink control information, uplink control information, etc.).

[0083] like Figure 5 As shown in example 500, the incoming signal may be a downlink signal received from a DU of an IAB node, network node 110, etc. via a fronthaul link, and the outgoing signal may be a regenerated version of a downlink signal sent to a mobile terminal (MT) unit of an IAB node, UE 120, etc. via an access link. Additionally or alternatively, the incoming signal may be an uplink signal received from an MT unit of an IAB node, UE 120, etc. via an access link, and the outgoing signal may be a regenerated version of an uplink signal sent to a DU of an IAB node, network node 110, etc. via a fronthaul link. Thus, as described herein, the relay operation performed by the repeater may be symmetric for the downlink signal and the uplink signal. Furthermore, in some examples, the device sending the incoming signal and / or the device receiving the outgoing signal may be unaware of the repeater (e.g., the relay operation may be transparent to the sending device and / or the receiving device).

[0084] like Figure 5As shown, the incoming signal can be processed by the Rx chain 504. For example, as described herein, the repeater can perform different levels of analog and / or digital processing to regenerate the incoming signal into an outgoing signal. The level of processing performed by the repeater can be based at least in part on a configuration received by the repeater (e.g., from a control node, etc.). For example, as shown by reference numeral 506 (which shows what can be referred to as split option 9), the repeater can perform analog beamforming on the incoming signal and can provide the analog signal to the Tx chain 502. The repeater can then perform analog beamforming on the analog signal to send an outgoing signal to the receiving device. In this case, the repeater can be configured as an analog repeater.

[0085] Additionally or alternatively, the repeater may be configured as a digital repeater, in which case the repeater may further process the incoming signal. For example, as shown by reference numeral 508 (which illustrates what may be referred to as split option 8), the repeater may process the analog signal by converting the incoming signal from the analog domain to the digital domain using an analog-to-digital converter (ADC) to determine time-domain IQ samples associated with the incoming signal. Thus, in some examples, the repeater may process the time-domain IQ samples using a digital-to-analog converter (DAC) to regenerate an analog signal, which is then transmitted using analog beamforming.

[0086] Additionally or alternatively, as shown by reference numeral 510 (which illustrates what may be referred to as split option 7-1), the repeater may further process the incoming signal by removing a cyclic prefix (CP) from the time domain IQ samples and performing an FFT to determine frequency domain IQ samples associated with the incoming signal. In this case, the repeater may generate an outgoing signal by then performing an iFFT on the frequency domain IQ samples and adding the CP to obtain time domain IQ samples, converting the time domain IQ samples to analog signals using a DAC, and transmitting the analog signals using analog beamforming.

[0087] Additionally or alternatively, as shown by reference numeral 512 (which illustrates what may be referred to as split option 7-2), the repeater may further process the incoming signal to determine symbols for each antenna associated with the incoming signal (e.g., IQ symbols for occupied tones). For example, the repeater may perform a digital beamforming process on the frequency domain IQ samples (e.g., based at least in part on a digital Tx beamforming configuration), and may also perform RE demapping to identify REs for the incoming signal and / or occupied tones based at least in part on an RE mapping configuration received by the repeater. The repeater may generate an outgoing signal by processing the symbols for each antenna (e.g., IQ symbols for occupied tones) using the RE mapping and digital beamforming information.

[0088] Additionally or alternatively, as shown by reference numeral 514 (which illustrates what may be referred to as split option 7-3), the repeater may further process the incoming signal to determine a codeword (e.g., a log likelihood ratio (LLR) value, etc.) associated with the incoming signal. For example, the repeater may determine the codeword by performing channel estimation and channel equalization on the IQ symbols of the occupied tones (e.g., to identify and / or remove noise associated with the incoming signal) and by performing a demodulation procedure on the incoming signal. In this case, the repeater may generate an outgoing signal by modulating the codeword, performing layer mapping, applying precoding, performing RE mapping, performing digital Tx beamforming, applying iFFT and / or adding CP, using a DAC to convert the signal from the digital domain to the analog domain, and performing analog beamforming to transmit the outgoing signal.

[0089] Additionally or alternatively, as shown by reference numeral 516 (which shows what may be referred to as split option 6), the repeater may further process the incoming signal to obtain a transport block associated with the incoming signal (e.g., the repeater may fully decode the incoming signal). For example, the repeater may obtain the transport block by descrambling the codeword (e.g., using a scrambling identifier associated with the incoming signal) and decoding the descrambled codeword (e.g., based at least in part on the MCS associated with the incoming signal). In this case, the repeater may generate an outgoing signal by encoding the transport block according to the Tx MCS, scrambling the encoded transport block to regenerate the codeword, modulating the codeword and performing layer mapping and precoding to regenerate symbols for each antenna, performing RE mapping and digital Tx beamforming to regenerate frequency domain IQ samples, applying iFFT and / or adding CP to the frequency domain IQ samples to regenerate time domain IQ samples, converting the time domain IQ samples from the digital domain to the analog domain using a DAC, and performing analog beamforming on the analog signal in the analog domain to transmit the outgoing signal.

[0090] In some examples, the level of processing performed by the repeater on the incoming signal may be configured by a control node or another wireless node.The outgoing signal may be a regenerated version of the incoming signal based at least in part on the level of processing performed by the repeater.

[0091] Figure 5 The number and arrangement of components shown are provided as examples. In practice, there may be Figure 5 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Figure 5 Two or more components shown may be implemented in a single component, or Figure 5 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 5The illustrated set of components (e.g., one or more components) may perform the operations described as being performed by Figure 5 Another group of components shown performs one or more functions.

[0092] In some networks, repeaters may provide increased coverage for the network based at least in part on providing added paths for line-of-sight (LoS) channels between nodes of the network and / or based at least in part on amplifying signals prior to repeating them.

[0093] Amplify and forward (A and F) repeaters amplify received signals in an analog chain and steer the received signals toward a target node (e.g., a UE or another repeater, etc.). The direction of the steering may be controlled by a network node (e.g., a gNB, CU, or DU). For example, the network node may send an indication of beamforming weights and / or commands to the repeater. The beamforming weights and / or commands may be based at least in part on a coverage indicator, such as RSSI and / or RSRP, received by the network node from the target UE. A and F repeaters may use analog reception and transmission.

[0094] Decode and forward (D and F) repeaters decode the received signal, re-encode the received signal, and then steer the signal toward the target node like A and F repeaters. However, the delay introduced by the repeater (or the sum of delays over multiple hops) has a direct impact on the aggregate delay of the link between the network node and the target node. Based at least in part on the delay, D and F deployment may not always be feasible. In the alternative, using A and F may result in reduced link performance and potential RAN requirement violations.

[0095] In some aspects described herein, a repeater can support multiple digital processing modes including one or more impairment correction operations. The multiple digital processing modes can be associated with A and F functions or different numbers of digital processing operations that correct errors of a received signal as received by the repeater and / or introduced by the repeater during digital or analog processing of the received signal.

[0096] In some aspects, the number of impairment correction operations can be based at least in part on a tradeoff between latency, which can be increased based at least in part on performing impairment correction operations, and link quality, which can be improved based at least in part on performing impairment correction operations.

[0097] In some aspects, a relay may send an indication to a network node indicating support for one or more candidate digital processing modes (e.g., using RRC signaling or medium access control (MAC) signaling). The indication may indicate features (e.g., one or more impairment correction operations) of the one or more candidate digital processing modes. For example, the indication may indicate that the relay supports a first candidate digital processing mode, a second candidate digital processing mode, and an mth candidate digital processing mode. The first candidate digital processing mode may be indicated as including a first feature. The second candidate digital processing mode may be indicated as including a first feature and a second feature. The mth candidate digital processing mode may be indicated as supporting a second feature, a third feature, and an nth feature.

[0098] In some aspects, the network node may send an indication of desired features and / or performance requirements (e.g., one or more parameters) to the repeater (e.g., using MAC signaling and / or control channel signaling). For example, the network node may indicate to the repeater that a candidate digital processing mode including a second feature is to be used. Additionally or alternatively, the network node may indicate that the repeater is to comply with one or more requirements when the second feature is applied. For example, a feature of FDRSB correction may be associated with a threshold amount of interference and / or noise on a sideband, and / or a feature of droop correction may be associated with a threshold amount of residual droop after droop correction, and so on.

[0099] In some aspects, the repeater may send (e.g., using MAC signaling and / or control channel signaling) to the network node an indication of one or more of the latency and / or characteristics of a digital processing mode (e.g., each of the candidate digital processing modes) (e.g., based at least in part on the performance requirements of the characteristics). In some aspects, the repeater may send (e.g., using MAC signaling and / or control channel signaling) to the network node an update to one or more of the latency and / or characteristics of the digital processing mode. For example, the repeater may send the update based at least in part on changes in conditions such as temperature and / or time of day (which may cause changes in complexity of digital predistortion (DPD) and / or changes in latency).

[0100] In some aspects, a network node may send (e.g., using MAC signaling and / or control channel signaling) an indication for indicating to a repeater the selection of a digital processing mode and / or one or more features to be used for relaying. In some aspects, a network node may send different indications (e.g., supporting different selections) to each repeater along a transmission path to a target node (e.g., a UE). In some aspects, an indication may be applied to a certain time slot (e.g., an aperiodic indication), to a certain amount of time (e.g., an indication of periodicity and / or time constraints), and / or to a limited number of time slots (e.g., an indication based on semi-persistent scheduling (SPS)), etc. In some aspects, an indication may include conditions for applying different digital processing modes and / or one or more features to be used for relaying communications. For example, an indication may indicate that a first digital processing mode is used during a first condition (e.g., time of day and / or temperature range) and a second digital processing mode is used during a second condition (e.g., different time of day and / or different temperature range).

[0101] In some aspects, the relay may send (e.g., using RRC signaling and / or MAC signaling) an indication of a maximum delay that the relay may introduce to the signal (e.g., a maximum storage time in a buffer of the relay). In some aspects, the network node may send (e.g., using RRC signaling and / or MAC signaling) an indication of a maximum delay that the relay may introduce to the signal. In some aspects, the network node may send an indication of the delay (e.g., using control channel signaling). The indication may be explicit or may be relative to a previous configuration.

[0102] In some aspects, if the digital processing mode includes a change in frequency resources between the received signal and the transmitted signal, the network node may send an indication to the repeater (e.g., using MAC signaling and / or control channel signaling) of a digital decoding matrix and / or a digital precoding matrix to be used. For example, the network node may indicate RE remapping for subsequent grants and / or communications. In some aspects, the indication may be associated with one or more time constraints for a limited amount of time (e.g., based on an indication of an SPS) and / or a starting time slot and / or symbol. In some aspects, the indication may indicate a frequency remapping option, such as an indication for moving data received at a first set of resources to a second set of resources for transmission.

[0103] Based at least in part on the network node selecting and the repeater using a digital processing mode selected from a set of candidate digital processing modes, the repeater can relay communications using a set of impairment correction operations selected to optimize performance. For example, the digital processing mode can be selected to balance latency and error correction associated with the repeater.

[0104] Figure 6 is a diagram of an example 600 associated with a repeater digital processing mode according to the present disclosure. Figure 6 As shown, a network node (e.g., network node 110, CU, DU, and / or RU) may communicate with a relay (e.g., network node 110) and a UE (e.g., UE 120). In some aspects, the network node, relay, and UE may be part of a wireless network (e.g., wireless network 100). The UE, relay, and network node may be in communication with each other. Figure 6 The operations shown in have previously established a wireless connection.In some aspects, the relay may be transparent to the UE, and the network node may be a controller above the relay.

[0105] As shown by reference numeral 605, the network node and the repeater can establish a control link. In some aspects, the control link can be a link between a mobile terminal unit of the repeater and the network node. In other words, the control link can facilitate communication between the repeater and the network node without the need for the repeater to relay signals received from the network node. In some aspects, the control link can provide a link through which the network node can configure the repeater and / or the repeater can provide information about the operation, capabilities and / or configuration of the repeater to the network node.

[0106] As indicated by reference numeral 610, the repeater may transmit an indication of a set of candidate digital processing modes supported by the repeater, and the network node may receive an indication of the set of candidate digital processing modes supported by the repeater. A candidate digital processing mode in the set of candidate digital processing modes may be associated with one or more impairment correction operations. In some aspects, the candidate digital processing mode is associated with a latency based at least in part on the associated impairment correction operation.

[0107] In some aspects, the one or more impairment correction operations may include: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal, etc. For example, the one or more impairment correction operations may include operations that do not involve decoding the communication or mapping the received signal to new time and / or frequency resources.

[0108] In some aspects, one or more of the candidate digital processing modes are associated with impairment correction operations including component carrier splitting of a received signal, application of a frequency shift per component carrier of a received signal, downsampling of a received signal, buffering of a received signal, upsampling of a transmitted signal, application of a frequency shift per component carrier of a transmitted signal, and / or component carrier splitting of a transmitted signal, etc. In some aspects, one or more of the candidate digital processing modes are associated with impairment correction operations including notch filtering of a received signal, application of an FFT operation on a received signal, application of digital beamforming on a received signal, resource element extraction of a received signal, resource element remapping of a transmitted signal, application of digital beamforming on a transmitted signal, application of an iFFT operation on a transmitted signal, etc.

[0109] As indicated by reference numeral 615, the repeater may receive an indication of one or more impairment correction operations and / or one or more parameters for using the one or more impairment correction operations, and the network node may send an indication of one or more impairment correction operations and / or one or more parameters for using the one or more impairment correction operations. In some aspects, the one or more parameters may include minimum performance requirements for performing the impairment correction operations. For example, impairment correction operations that do not meet the minimum performance requirements should not be used due to increased latency associated with the impairment correction operations.

[0110] As indicated by reference numeral 620, a repeater may send, and a network node may receive, an indication of delays associated with one or more candidate digital processing modes and / or one or more impairment correction operations. For example, a repeater may send an indication of the total delay for each of the candidate digital processing modes. Additionally or alternatively, a repeater may send an indication of delays for individual impairment correction operations. For example, a first indication of a delay associated with a first impairment correction operation of a digital processing mode and a second indication of a delay associated with a second impairment correction operation of a digital processing mode.

[0111] In this manner, the network node may balance the advantages of using the candidate digital processing mode and / or impairment correction operation with the delays incurred by using the candidate digital processing mode and / or impairment correction operation.

[0112] As shown by reference numeral 625, the repeater may send an indication of a maximum delay of a signal supported for relaying, and the network node may receive an indication of a maximum delay of a signal supported for relaying. The maximum delay may be based at least in part on a data buffer of the repeater and / or a capacity for storing communications. In some aspects, the maximum delay may be based at least in part on an amount of traffic communicated via the repeater.

[0113] As shown by reference numeral 630, the repeater may receive an indication of the selection of the digital processing mode, and the network node may send an indication of the selection of the digital processing mode. In some aspects, the network node may select the digital processing mode based at least in part on an indication of the maximum delay of the signal supported for relaying. In some aspects, the network node may select the digital processing mode based at least in part on a signal-to-noise ratio (SNR) associated with receiving one or more communications from a parent node (e.g., using the network node or an additional repeater). In some aspects, the network node may select the digital processing mode based at least in part on a channel between the repeater and the parent node and at least in part on a channel between the repeater and the child node.

[0114] In some aspects, selection of the digital processing mode can be applied to communications received within the plurality of time slots based at least in part on an indication of the plurality of time slots being within a time window from receipt of the indication of the selection and / or the plurality of time slots being a periodic resource, etc. In some aspects, selection of the digital processing mode is applied to communications received during an indicated condition (e.g., a time period, a time of day, a periodic time resource, and / or a temperature range, etc.).

[0115] In some aspects, the selected indication can be applied to the repeater, and an additional processing mode different from the digital processing mode is applied to additional repeaters along the transmission path of one or more communications. In this way, the network node can configure different digital processing modes to different repeaters. For example, a repeater with low reception quality can improve communication errors by performing additional impairment correction operations compared to a repeater with high reception quality, and error correction may be unnecessary for the repeater with high reception quality. Additionally or alternatively, the network node can select different digital processing modes based at least in part on power constraints of different repeaters (e.g., having different types of power sources (such as solar energy and / or other energy harvesting or connection to the power grid)).

[0116] As indicated by reference numeral 635, the relay may receive communications for relaying, indications of resources for relaying communications, decoding matrices, precoding matrices, and / or remapping configurations, and the network node may send communications for relaying, indications of resources for relaying communications, decoding matrices, precoding matrices, and / or remapping configurations. In some aspects, the

[0117] In some aspects, the digital processing mode may include using different frequency resources to relay communications. For such communications, the network node may send an indication of a digital decoding matrix (e.g., used to receive communications from the network node), an indication of a digital precoding matrix (e.g., used to send communications), and / or an indication of a resource element mapping (e.g., used to remap communications to resource elements), etc.

[0118] The repeater may apply the digital processing mode, as indicated by reference numeral 640. For example, the repeater may perform one or more impairment correction operations associated with the digital processing mode.

[0119] The repeater may forward the communication (e.g., to the UE) as indicated by reference numeral 645. For example, the repeater may forward the communication using the same resources as those used to receive the communication (e.g., almost immediately relay), or may delay transmission and / or move the communication to different frequency resources.

[0120] As indicated by reference numeral 650, the repeater may receive an indication of one or more updated parameters for using one or more impairment correction operations, and the network node may send an indication of one or more updated parameters for using one or more impairment correction operations. For example, the network node may update one or more parameters described in conjunction with reference numeral 615 based at least in part on changes in conditions (e.g., changes in the physical environment, weather, and / or traffic, etc.).

[0121] As shown by reference numeral 655, a repeater may send an indication of an updated latency associated with a candidate digital processing mode and / or one or more impairment correction operations, and a network node may receive an indication of an updated latency associated with a candidate digital processing mode and / or one or more impairment correction operations.

[0122] Based at least in part on the network node selecting and the repeater using a digital processing mode selected from a set of candidate digital processing modes, the repeater can relay communications using a set of impairment correction operations selected to optimize performance. For example, the digital processing mode can be selected to balance latency and error correction associated with the repeater.

[0123] As indicated above, Figure 6 are provided as examples. Other examples can be found in Figure 6 The content described is different.

[0124] Figure 7 is a diagram illustrating an example 700 of a Tx chain 702 and an Rx chain 704 of a repeater according to the present disclosure. Figure 7 The box may represent the impairment correction operation of the digital processing mode.

[0125] like Figure 7 As shown, the digital processing mode 706 can be associated with impairment correction operations, which include: applying receive RF (RXRF), applying LNA, applying receive intermediate frequency converter (RXIF), applying receive baseband frequency converter (RXBB), applying ADC, applying DC offset removal (DC REMOVE), applying gain receiver (Gain RX), applying receiver droop correction (RX DROP) and / or applying receiver FDRSB.

[0126] DC removal can correct DC offset by the ADC. Gain RX can correct the gain (e.g., add gain) to the output of the LNA. RX droop can correct droop introduced by RXRF, RXIF, and / or RXBB. Droop can include frequency-dependent analog response errors.

[0127] The digital processing mode 706 may include providing the signal from the RX FDRSB (e.g., the received signal) to a crest factor reducer (CFR) that reduces the peak-to-average power ratio of the signal (the signal that was transmitted in the Tx chain 704). The DPD corrector may apply a function to the signal to correct for distortion to be caused by the power amplifier (PA). The repeater may then apply TX FDRSB, TX droop correction, gain RX, DC removal, DAC, transmit baseband frequency converter (TXBB), transmit intermediate frequency converter (TXIF), transmit RF converter (TXRF), and / or PA and antenna (to transmit the signal at RF).

[0128] TX FDRSB can correct the sideband interference formed by TXBB, and TX droop can correct the droop caused by TXBB, TXIF and / or TXRF. Gain RX can correct the gain (e.g., add gain) before providing the signal to the PA. DC removal can correct the DC offset through the DAC.

[0129] Some modes may include additional impairment correction operations. For example, mode 708 includes operations for changing the time resources of the transmitted signal (e.g., relative to the received signal). The operations may include: applying a component carrier splitter (CC splitter) to split the received signal into corresponding component carriers, applying a frequency shift (F shift) to shift the received signal (e.g., on the same frequency resource) over time for transmission, and applying down sampling to the received signal. The repeater may then apply a buffer to store the received signal before transmission, apply up sampling, apply frequency shift, and apply a component carrier combiner before providing the signal to the CFR.

[0130] Mode 710 may include applying a notch filter to resolve glitches in the received signal in the frequency domain, applying an FFT, applying digital beamforming (BF), and applying resource element extraction (RE extraction). Rx chain 702 may provide time domain IQ samples to Tx chain 704, which may apply an RE mapper (RE mapping), digital BF, and iFFT. Mode 712 may also apply a channel estimate (Chest), an equalizer (equal), and / or a whitener (whitening) to the input signal before providing the received signal to the RE mapper.

[0131] The mode 714 may include applying LLRs and decoders to the received signal. The Rx chain 702 may then provide the uncoded bits to the Tx chain 704 at the encoder to re-encode the bits and then apply the modulator (Mod) and layer mapping (Layer Map) to the transmitted signal.

[0132] Figure 7 Several example impairment correction operations associated with different digital beam processing modes are shown.Although shown as being separated into modes 706, 708, 710, 712, and 714, the impairment correction operations may be combined into different combinations not shown.

[0133] As indicated above, Figure 7 are provided as examples. Other examples can be found in Figure 7 The content described is different.

[0134] Figure 8 is a diagram illustrating an example process 800 performed, for example, by a repeater in accordance with the present disclosure. The example process 800 is an example in which a repeater (eg, network node 110) performs operations associated with a repeater digital processing mode.

[0135] like Figure 8As shown, in some aspects, process 800 may include: sending an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal (block 810). For example, a repeater (e.g., using Fig.10 The communication manager 140 and / or the transmitting component 1004 depicted in the figure can send an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal, as described above.

[0136] like Figure 8 As further shown, in some aspects, process 800 may include receiving an indication to select a digital processing mode from a set of candidate digital processing modes for one or more communications (block 820). Fig.10 The communications manager 140 and / or receiving component 1002 depicted in FIG. 1004 may receive an indication to select a digital processing mode from a set of candidate digital processing modes for one or more communications, as described above.

[0137] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0138] In a first aspect, process 800 includes receiving an indication of one or more parameters for an impairment correction operation using the digital processing mode.

[0139] In a second aspect, either alone or in combination with the first aspect, process 800 includes sending an indication of a latency associated with the digital processing mode based at least in part on the one or more parameters.

[0140] In a third aspect, either alone or in combination with one or more of the first and second aspects, the indication of the delay comprises a first indication of the delay associated with a first impairment correction operation of the digital processing mode, and a second indication of the delay associated with a second impairment correction operation of the digital processing mode.

[0141] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 800 includes sending an update to the delay associated with the digital processing mode.

[0142] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 800 includes receiving an update to the one or more parameters for impairment correction operation using the digital processing mode.

[0143] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the digital processing mode is applied to the repeater, and wherein an additional processing mode different from the digital processing mode is applied to additional repeaters along the transmission path of the one or more communications.

[0144] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the digital processing mode is applied to communications received within a plurality of time slots based at least in part on: an indication of the plurality of time slots, the plurality of time slots being within a time window from receipt of the indication of the selection, or the plurality of time slots being periodic resources.

[0145] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the selection of the digital processing mode applies to communications received during an indicated condition.

[0146] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 800 includes sending an indication of a maximum tolerable delay for forwarding communications, the maximum tolerable delay associated with the digital processing mode.

[0147] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, process 800 comprises receiving one or more of: an indication of a digital decoding matrix, an indication of a digital precoding matrix, or an indication of a resource element mapping.

[0148] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the digital processing mode includes one or more of the following: carrier splitting of the received signal, application of frequency shift for each component carrier of the received signal, downsampling of the received signal, buffering of the received signal, upsampling of the transmitted signal, application of frequency shift for each component carrier of the transmitted signal, or carrier splitting of the transmitted signal.

[0149] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the one or more impairment correction operations include one or more of the following: notch filtering of the received signal, application of an FFT operation on the received signal, application of digital beamforming on the received signal, element extraction of the received signal, element remapping of the transmitted signal, application of digital beamforming on the transmitted signal, and application of an iFFT operation on the transmitted signal.

[0150] In a thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the selection of the digital processing mode is based at least in part on an SNR associated with receiving the one or more communications from a parent node.

[0151] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the selection of the digital processing mode is based at least in part on a channel between the repeater and a parent node, and at least in part on a channel between the repeater and a child node.

[0152] In a fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, a candidate digital processing mode in the set of candidate digital processing modes is associated with a latency based at least in part on an associated impairment correction operation.

[0153] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 The blocks depicted in the process 800 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 800. Additionally or alternatively, two or more blocks in the blocks of process 800 may be executed in parallel.

[0154] Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a network node in accordance with the present disclosure. The example process 900 is an example in which a network node (eg, network node 110) performs operations associated with a repeater digital processing mode.

[0155] like Fig. 9 As shown, in some aspects, process 900 may include: receiving an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal (block 910). For example, a network node (e.g., using Fig.11 The communication manager 150 and / or receiving component 1102 depicted in the figure can receive an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital pre-distortion correction of a transmitted signal, as described above.

[0156] like Fig. 9 As further shown, in some aspects, process 900 may include sending an indication of selecting a digital processing mode from a set of candidate digital processing modes for one or more communications (block 920). Fig.11 The communication manager 150 and / or sending component 1104 depicted in FIG. 10A may send an indication of selecting a digital processing mode from a set of candidate digital processing modes for one or more communications, as described above.

[0157] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or described in conjunction with one or more other processes described elsewhere herein.

[0158] In a first aspect, process 900 includes sending an indication of one or more parameters for an impairment correction operation using the digital processing mode.

[0159] In a second aspect, alone or in combination with the first aspect, process 900 includes receiving an indication of a latency associated with the digital processing mode based at least in part on the one or more parameters.

[0160] In a third aspect, either alone or in combination with one or more of the first and second aspects, the indication of the delay comprises a first indication of the delay associated with a first impairment correction operation of the digital processing mode, and a second indication of the delay associated with a second impairment correction operation of the digital processing mode.

[0161] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 900 includes receiving an update to the delay associated with the digital processing mode.

[0162] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 900 includes sending updates to the one or more parameters for impairment correction operations using the digital processing mode.

[0163] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the digital processing mode is applied to the repeater, and wherein an additional processing mode different from the digital processing mode is applied to additional repeaters along the transmission path of the one or more communications.

[0164] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the digital processing mode is applied to communications received within a plurality of time slots based at least in part on: an indication of the plurality of time slots, the plurality of time slots being within a time window from receipt of the indication of the selection, or the plurality of time slots being periodic resources.

[0165] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the selection of the digital processing mode applies to communications received during an indicated condition.

[0166] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 900 includes receiving an indication of a maximum tolerable delay for forwarding communications, the maximum tolerable delay associated with the digital processing mode.

[0167] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, process 900 includes sending one or more of: an indication of a digital decoding matrix, an indication of a digital precoding matrix, or an indication of a resource element mapping.

[0168] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the digital processing mode includes one or more of the following: carrier splitting of the received signal, application of frequency shift for each component carrier of the received signal, downsampling of the received signal, buffering of the received signal, upsampling of the transmitted signal, application of frequency shift for each component carrier of the transmitted signal, or carrier splitting of the transmitted signal.

[0169] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the one or more impairment correction operations include one or more of the following: notch filtering of the received signal, application of an FFT operation on the received signal, application of digital beamforming on the received signal, element extraction of the received signal, element remapping of the transmitted signal, application of digital beamforming on the transmitted signal, and application of an iFFT operation on the transmitted signal.

[0170] In a thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the selection of the digital processing mode is based at least in part on an SNR associated with receiving the one or more communications from a parent node.

[0171] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the selection of the digital processing mode is based at least in part on a channel between the repeater and a parent node, and at least in part on a channel between the repeater and a child node.

[0172] In a fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, a candidate digital processing mode in the set of candidate digital processing modes is associated with a latency based at least in part on an associated impairment correction operation.

[0173] although Fig. 9 An example block diagram of process 900 is shown, but in some aspects, process 900 may include Fig. 9 The blocks depicted in the process 900 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 900. Additionally or alternatively, two or more blocks in the blocks of the process 900 may be executed in parallel.

[0174] Fig.101 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a repeater, or a repeater may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and transmitting component 1004. As further shown, apparatus 1000 may include a communication manager 1008 (e.g., communication manager 140).

[0175] In some aspects, the apparatus 1000 may be configured to perform Figure 6 to Figure 7 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more of the processes described herein (such as Figure 8 In some aspects, the apparatus 1000 and / or Fig.10 One or more of the components shown may include a combination of Figure 2 Additionally or alternatively, Fig.10 One or more of the components shown may be combined Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as an instruction or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0176] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the apparatus 1006. The receiving component 1002 may provide the received communications to one or more other components of the apparatus 1000. In some aspects, the receiving component 1002 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the apparatus 1000. In some aspects, the receiving component 1002 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described repeaters.

[0177] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the apparatus 1006. In some aspects, one or more other components of the apparatus 1000 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the apparatus 1006. In some aspects, the transmitting component 1004 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the apparatus 1006. In some aspects, the transmitting component 1004 may include a combination of Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described repeaters. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.

[0178] The transmitting component 1004 can transmit an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes comprising a digital processing mode including one or more impairment correction operations, the one or more impairment correction operations comprising one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital predistortion correction of a transmitted signal. The receiving component 1002 can receive an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0179] Receiving component 1002 can receive an indication of one or more parameters for impairment correction operations using a digital processing mode.

[0180] Transmitting component 1004 can transmit an indication of a latency associated with the digital processing mode based at least in part on one or more parameters.

[0181] The sending component 1004 can send updates to the delay associated with the digital processing mode.

[0182] Receiving component 1002 can receive updates to one or more parameters for impairment correction operations using a digital processing mode.

[0183] Transmitting component 1004 can transmit an indication of a maximum tolerable delay for forwarding communications, the maximum tolerable delay associated with the digital processing mode.

[0184] Receiving component 1002 can receive one or more of: an indication of a digital decoding matrix, an indication of a digital precoding matrix, or an indication of a resource element mapping.

[0185] Fig.10 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged in a different manner than those shown in FIG. Fig.10 Two or more components shown may be implemented in a single component, or Fig.10 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 The assembly of (one or more) components shown may perform the operations described by Fig.10 Another collection of components shown performs one or more functions.

[0186] Fig.11 1 is a diagram of an example apparatus 1100 for wireless communication according to the present disclosure. Apparatus 1100 may be a network node, or a network node may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102 and a transmitting component 1104 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using receiving component 1102 and transmitting component 1104. As further shown, apparatus 1100 may include a communication manager 1018 (e.g., communication manager 150).

[0187] In some aspects, the apparatus 1100 may be configured to perform Figure 6 to Figure 7 Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Fig. 9 The process 900. In some aspects, Fig.11 The device 1100 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.11 One or more of the components shown may be combined Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as an instruction or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0188] The receiving component 1102 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the apparatus 1106. The receiving component 1102 may provide the received communications to one or more other components of the apparatus 1100. In some aspects, the receiving component 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the apparatus 1100. In some aspects, the receiving component 1102 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the described network nodes.

[0189] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1106. In some aspects, one or more other components of the device 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the device 1106. In some aspects, the transmitting component 1104 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1106. In some aspects, the transmitting component 1104 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.

[0190] The receiving component 1102 can receive an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of: DC offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive LNA, gain control associated with a transmit LNA, droop correction of a received signal, droop correction of a transmitted signal, FDRSB correction of a received signal, FDRSB correction of a transmitted signal, peak-to-average ratio reduction of a transmitted signal, or digital predistortion correction of a transmitted signal. The transmitting component 1104 can transmit an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0191] Transmitting component 1104 can transmit an indication of one or more parameters for impairment correction operations using the digital processing mode.

[0192] Receiving component 1102 can receive an indication of a latency associated with the digital processing mode based at least in part on one or more parameters.

[0193] The receiving component 1102 can receive updates to the latency associated with the digital processing mode.

[0194] Sending component 1104 can send updates to one or more parameters for impairment correction operations using the digital processing mode.

[0195] Receiving component 1102 can receive an indication of a maximum tolerable delay for forwarding communications, the maximum tolerable delay associated with the digital processing mode.

[0196] Transmitting component 1104 can transmit one or more of: an indication of a digital decoding matrix, an indication of a digital precoding matrix, or an indication of a resource element mapping.

[0197] Fig.11 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.11 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.11 Two or more components shown may be implemented in a single component, or Fig.11 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.11 The assembly of (one or more) components shown may perform the operations described by Fig.11 Another collection of components shown performs one or more functions.

[0198] The following provides an overview of some aspects of the disclosure:

[0199] Aspect 1: A method of wireless communication performed by a repeater, comprising: sending an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes including digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: direct current (DC) offset elimination from a received signal, DC offset elimination from a transmitted signal, gain control associated with a receiving low noise amplifier (LNA), gain control associated with a transmitting LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain residual sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal; and receiving an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0200] Aspect 2: The method according to aspect 1, further comprising: receiving an indication of one or more parameters for impairment correction operations using the digital processing mode.

[0201] Aspect 3: The method according to aspect 2 further comprises: sending an indication of a latency associated with the digital processing mode based at least in part on the one or more parameters.

[0202] Aspect 4: A method according to Aspect 3, wherein the indication of the delay includes: a first indication of the delay associated with a first impairment correction operation of the digital processing mode, and a second indication of the delay associated with a second impairment correction operation of the digital processing mode.

[0203] Aspect 5: The method according to any one of aspects 3 to 4, further comprising: sending an update to the delay associated with the digital processing mode.

[0204] Aspect 6: The method according to any one of aspects 2 to 5, further comprising: receiving an update to the one or more parameters for impairment correction operation using the digital processing mode.

[0205] Aspect 7: A method according to any one of aspects 1 to 6, wherein the digital processing mode is applied to the repeater, and wherein an additional processing mode different from the digital processing mode is applied to additional repeaters along the transmission path of the one or more communications.

[0206] Aspect 8: A method according to any one of Aspects 1 to 7, wherein the digital processing mode is applied to communications received within multiple time slots based at least in part on: an indication of the multiple time slots, the multiple time slots are within a time window from receipt of the indication of the selection, or the multiple time slots are periodic resources.

[0207] Aspect 9: The method of any one of aspects 1 to 8, wherein the selection of the digital processing mode applies to communications received during the indicated condition.

[0208] Aspect 10: The method according to any one of aspects 1 to 9, further comprising: sending an indication of a maximum tolerable delay for forwarding communications, the maximum tolerable delay being associated with the digital processing mode.

[0209] Aspect 11: The method according to any one of aspects 1 to 10, further comprising receiving one or more of: an indication of a digital decoding matrix, an indication of a digital precoding matrix, or an indication of a resource element mapping.

[0210] Aspect 12: A method according to any one of Aspects 1 to 11, wherein the digital processing mode includes one or more of the following: component carrier splitting of the received signal, application of frequency shift to each component carrier of the received signal, downsampling of the received signal, buffering of the received signal, upsampling of the transmitted signal, application of frequency shift to each component carrier of the transmitted signal, or component carrier splitting of the transmitted signal.

[0211] Aspect 13: A method according to any one of Aspects 1 to 12, wherein the one or more impairment correction operations include one or more of the following: notch filtering of the received signal, application of a fast Fourier transform (FFT) operation on the received signal, application of digital beamforming on the received signal, resource element extraction of the received signal, resource element remapping of the transmitted signal, application of digital beamforming on the transmitted signal, and application of an inverse fast Fourier transform (iFFT) operation on the transmitted signal.

[0212] Aspect 14: The method of any one of aspects 1 to 13, wherein the selection of the digital processing mode is based at least in part on a signal-to-noise ratio (SNR) associated with receiving the one or more communications from a parent node.

[0213] Aspect 15: A method according to any one of aspects 1 to 14, wherein the selection of the digital processing mode is based at least in part on a channel between the repeater and a parent node, and at least in part on a channel between the repeater and a child node.

[0214] Aspect 16: The method of any one of aspects 1 to 15, wherein a candidate digital processing mode in the set of candidate digital processing modes is associated with a latency based at least in part on an associated impairment correction operation.

[0215] Aspect 17: A method of wireless communication performed by a network node, comprising: receiving an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes including a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations including one or more of the following: direct current (DC) offset elimination from a received signal, DC offset elimination from a transmitted signal, gain control associated with a receiving low noise amplifier (LNA), gain control associated with a transmitting LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain residual sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital pre-distortion correction of the transmitted signal; and sending an indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications.

[0216] Aspect 18: The method according to aspect 17 further comprises: sending an indication of one or more parameters for impairment correction operations using the digital processing mode.

[0217] Aspect 19: The method of aspect 18, further comprising: receiving an indication of a latency associated with the digital processing mode based at least in part on the one or more parameters.

[0218] Aspect 20: A method according to Aspect 19, wherein the indication of the delay includes: a first indication of the delay associated with a first impairment correction operation of the digital processing mode, and a second indication of the delay associated with a second impairment correction operation of the digital processing mode.

[0219] Aspect 21: The method according to any one of aspects 19 to 20, further comprising: receiving an update to the delay associated with the digital processing mode.

[0220] Aspect 22: The method according to any one of aspects 18 to 21, further comprising: sending updates to the one or more parameters for impairment correction operations using the digital processing mode.

[0221] Aspect 23: A method according to any one of aspects 17 to 22, wherein the digital processing mode is applied to the repeater, and wherein an additional processing mode different from the digital processing mode is applied to additional repeaters along the transmission path of the one or more communications.

[0222] Aspect 24: A method according to any one of Aspects 17 to 23, wherein the digital processing mode is applied to communications received within multiple time slots based at least in part on: an indication of the multiple time slots, the multiple time slots are within a time window from receipt of the indication of the selection, or the multiple time slots are periodic resources.

[0223] Aspect 25: The method of any one of aspects 17 to 24, wherein the selection of the digital processing mode applies to communications received during the indicated condition.

[0224] Aspect 26: The method according to any one of aspects 17 to 25, further comprising: receiving an indication of a maximum tolerable delay for forwarding communications, the maximum tolerable delay being associated with the digital processing mode.

[0225] Aspect 27: The method according to any one of aspects 17 to 26, further comprising sending one or more of: an indication of a digital decoding matrix, an indication of a digital precoding matrix, or an indication of a resource element mapping.

[0226] Aspect 28: A method according to Aspect 17, wherein the digital processing mode includes one or more of the following: component carrier splitting of the received signal, application of frequency shift for each component carrier of the received signal, downsampling of the received signal, buffering of the received signal, upsampling of the transmitted signal, application of frequency shift for each component carrier of the transmitted signal, or component carrier splitting of the transmitted signal.

[0227] Aspect 29: A method according to any one of Aspects 17 to 28, wherein the one or more impairment correction operations include one or more of the following: notch filtering of the received signal, application of a fast Fourier transform (FFT) operation on the received signal, application of digital beamforming on the received signal, resource element extraction of the received signal, resource element remapping of the transmitted signal, application of digital beamforming on the transmitted signal, and application of an inverse fast Fourier transform (iFFT) operation on the transmitted signal.

[0228] Aspect 30: The method according to any one of aspects 17 to 29, wherein the selection of the digital processing mode is based at least in part on a signal-to-noise ratio (SNR) associated with receiving the one or more communications from a parent node.

[0229] Aspect 31: A method according to any one of Aspects 17 to 30, wherein the selection of the digital processing mode is based at least in part on a channel between the repeater and a parent node, and at least in part on a channel between the repeater and a child node.

[0230] Aspect 32: The method according to any one of aspects 17 to 31, wherein a candidate digital processing mode in the set of candidate digital processing modes is associated with a latency based at least in part on an associated impairment correction operation.

[0231] Aspect 33: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 32.

[0232] Aspect 34: A device for wireless communication, comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 32.

[0233] Aspect 35: An apparatus for wireless communication, comprising: at least one component for performing the method according to one or more of aspects 1 to 32.

[0234] Aspect 36: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 32.

[0235] Aspect 37: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 32.

[0236] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be acquired from practice of the various aspects.

[0237] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to a specific software code herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0238] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0239] Although the specific combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (it includes a single member). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (for example, 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).

[0240] Any element, action or instruction used herein should not be interpreted as critical or necessary unless clearly stated. In addition, as used herein, the article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If you only want to refer to an item, the phrase "only one" or similar terms will be used. Moreover, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "having" A elements can also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and may be used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A repeater for wireless communication, comprising: Memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to: transmitting an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes comprising digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations comprising one or more of: direct current (DC) offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive low noise amplifier (LNA), gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain vestigial sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital predistortion correction of the transmitted signal; and An indication is received to select a digital processing mode from the set of candidate digital processing modes for one or more communications.

2. The repeater of claim 1 , wherein the one or more processors are further configured to: An indication of one or more parameters for an impairment correction operation using the digital processing mode is received.

3. The repeater of claim 2, wherein the one or more processors are further configured to: An indication of a latency associated with the digital processing mode is sent based at least in part on the one or more parameters.

4. The repeater of claim 3, wherein the indication of the time delay comprises: a first indication of a delay associated with a first impairment correction operation of the digital processing mode, and A second indication of a delay associated with a second impairment correction operation of the digital processing mode.

5. The repeater of claim 3, wherein the one or more processors are further configured to: An update to the delay associated with the digital processing mode is sent.

6. The repeater of claim 2, wherein the one or more processors are further configured to: An update to the one or more parameters for impairment correction operations using the digital processing mode is received.

7. The repeater according to claim 1, wherein the digital processing mode is applied to the repeater, and Wherein additional processing modes different from the digital processing mode are applied to additional repeaters along a transmission path of the one or more communications.

8. The repeater of claim 1 , wherein the digital processing mode is applied to communications received in a plurality of time slots based at least in part on: an indication of the plurality of time slots, the plurality of time slots are within a time window from receipt of the indication of the selection, or The plurality of time slots are periodic resources.

9. The repeater of claim 1, wherein the selection of the digital processing mode applies to communications received during an indicated condition.

10. The repeater of claim 1, wherein the one or more processors are further configured to: An indication of a maximum tolerable delay for forwarding communications is sent, the maximum tolerable delay associated with the digital processing mode.

11. The repeater of claim 1 , wherein the one or more processors are further configured to receive one or more of: Instructions for digital decoding matrix, An indication of the digital precoding matrix, or Indication of resource element mapping.

12. The repeater of claim 1, wherein the digital processing mode comprises one or more of the following: component carrier splitting of the received signal, application of a frequency shift to each component carrier of the received signal, downsampling of the received signal, buffering of the received signal, upsampling of the transmitted signal, application of a frequency shift for each component carrier of the transmitted signal, or The transmitted signal has component carrier splitting.

13. The repeater of claim 1 , wherein the one or more impairment correction operations include one or more of: notch filtering of the received signal, applying a Fast Fourier Transform (FFT) operation to the received signal, applying digital beamforming to the received signal, extracting resource elements of the received signal, The resource elements of the transmitted signal are remapped, applying digital beamforming to the transmitted signal, Application of an inverse fast Fourier transform (iFFT) operation to the transmitted signal.

14. The repeater of claim 1, wherein the selection of the digital processing mode is based at least in part on a signal-to-noise ratio (SNR) associated with receiving the one or more communications from a parent node.

15. The repeater of claim 1, wherein the selection of the digital processing mode is based at least in part on a channel between the repeater and a parent node and at least in part on a channel between the repeater and a child node.

16. The repeater of claim 1, wherein a candidate digital processing mode in the set of candidate digital processing modes is associated with a delay based at least in part on an associated impairment correction operation.

17. A network node for wireless communication, comprising: Memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to: receiving an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes comprising a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations comprising one or more of: direct current (DC) offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive low noise amplifier (LNA), gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain vestigial sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital predistortion correction of the transmitted signal; and An indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications is sent.

18. The network node of claim 17, wherein the one or more processors are further configured to: An indication of one or more parameters for impairment correction operations using the digital processing mode is sent.

19. The network node according to claim 17, wherein the digital processing mode is applied to the repeater, and Wherein additional processing modes different from the digital processing mode are applied to additional repeaters along a transmission path of the one or more communications.

20. The network node of claim 17, wherein the digital processing mode is applied to communications received in a plurality of time slots based at least in part on: an indication of the plurality of time slots, the plurality of time slots are within a time window from receipt of the indication of the selection, or The plurality of time slots are periodic resources.

21. The network node of claim 17, wherein the selection of the digital processing mode applies to communications received during an indicated condition.

22. The network node of claim 17, wherein the one or more processors are further configured to: An indication of a maximum tolerable delay for forwarding communications is received, the maximum tolerable delay associated with the digital processing mode.

23. The network node of claim 17, wherein the one or more processors are further configured to send one or more of: Instructions for digital decoding matrix, An indication of the digital precoding matrix, or Indication of resource element mapping.

24. The network node of claim 17, wherein the digital processing mode comprises one or more of the following: component carrier splitting of the received signal, application of a frequency shift to each component carrier of the received signal, downsampling of the received signal, buffering of the received signal, upsampling of the transmitted signal, application of a frequency shift for each component carrier of the transmitted signal, or The transmitted signal has component carrier splitting.

25. The network node of claim 17, wherein the one or more impairment correction operations include one or more of: notch filtering of the received signal, application of a Fast Fourier Transform (FFT) operation to said received signal, applying digital beamforming to the received signal, extracting resource elements of the received signal, The resource elements of the transmitted signal are remapped, applying digital beamforming to the transmitted signal, Application of an inverse fast Fourier transform (iFFT) operation to the transmitted signal.

26. The network node of claim 17, wherein the selection of the digital processing mode is based at least in part on a signal-to-noise ratio (SNR) associated with receiving the one or more communications from a parent node.

27. The network node of claim 17, wherein the selection of the digital processing mode is based at least in part on a channel between the repeater and a parent node and at least in part on a channel between the repeater and a child node.

28. The network node of claim 17, wherein a candidate digital processing mode in the set of candidate digital processing modes is associated with a latency based at least in part on an associated impairment correction operation.

29. A method of wireless communication performed by a repeater, comprising: transmitting an indication of a set of candidate digital processing modes supported by the repeater, the set of candidate digital processing modes comprising digital processing modes that include one or more impairment correction operations, the one or more impairment correction operations comprising one or more of: direct current (DC) offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive low noise amplifier (LNA), gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain vestigial sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital predistortion correction of the transmitted signal; and An indication is received to select a digital processing mode from the set of candidate digital processing modes for one or more communications.

30. A method of wireless communication performed by a network node, comprising: receiving an indication of a set of candidate digital processing modes supported by a repeater, the set of candidate digital processing modes comprising a digital processing mode that includes one or more impairment correction operations, the one or more impairment correction operations comprising one or more of: direct current (DC) offset cancellation from a received signal, DC offset cancellation from a transmitted signal, gain control associated with a receive low noise amplifier (LNA), gain control associated with a transmit LNA, droop correction of the received signal, droop correction of the transmitted signal, frequency domain vestigial sideband (FDRSB) correction of the received signal, FDRSB correction of the transmitted signal, peak-to-average ratio reduction of the transmitted signal, or digital predistortion correction of the transmitted signal; and An indication of selecting a digital processing mode from the set of candidate digital processing modes for one or more communications is sent.

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