Method and apparatus for a four-step random access channel procedure

Abstract

Various aspects of the present disclosure relate generally to wireless communications. In some aspects, a network node may send configuration information associated with identifying a plurality of random access channel (RACH) opportunity (RO) sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution analog-to-digital converter (ADC) and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the network node. The network node may: when operating in a particular mode of the network node, communicate using a particular RO set of the plurality of RO sets associated with the particular mode of the network node. Many 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 / 450,226, filed on October 7, 2021, entitled “FOUR-STEP RANDOMACCESSCHANNEL PROCEDURE,” which is assigned to the assignee of this application. The disclosure of that prior application is considered part of and is incorporated by reference in its entirety into this patent application. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and techniques and apparatus for a four-step random access channel procedure. 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 utilize 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 base stations that support communications for a user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a base station to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a base station.

[0006] The above 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 released by 3GPP. NR is designed to better integrate with other open standards 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, using 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, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to better support mobile broadband Internet access. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR and other radio access technologies remain useful. Summary of the invention

[0007] Some aspects described herein relate to a method of performing wireless communications by a network node. The method may include sending configuration information associated with identifying a plurality of random access channel (RACH) opportunity (RO) sets, wherein a first set of ROs in the plurality of RO sets is associated with a first set of parameters for a low-resolution analog-to-digital converter (ADC) and a first mode of the network node, and a second set of ROs in the plurality of RO sets is associated with a second set of parameters for a high-resolution ADC and a second mode of the network node. The method may include, when operating in a particular mode of the network node, communicating using a particular set of ROs in the plurality of RO sets that is associated with the particular mode of the network node.

[0008] Some aspects described herein relate to a method of performing wireless communications by a network node. The method may include receiving configuration information identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low resolution ADC and a first mode, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high resolution ADC and a second mode. The method may include communicating using a particular RO set of the plurality of RO sets associated with a particular mode when based at least in part on timing corresponding to the particular mode in the first mode or the second mode.

[0009] Some aspects described herein relate to a network node for wireless communication. 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 send configuration information associated with identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the network node. The one or more processors may be configured to communicate using a particular RO set of the plurality of RO sets associated with the particular mode of the network node when operating in a particular mode of the network node.

[0010] Some aspects described herein relate to a network node for wireless communication. 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 configuration information identifying a plurality of RO sets, wherein a first RO set in the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode, and a second RO set in the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode. The one or more processors may be configured to communicate using a particular RO set in the plurality of RO sets associated with a particular mode when based at least in part on timing corresponding to a particular mode in the first mode or the second mode.

[0011] 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 perform the following operations: send configuration information associated with identifying a plurality of RO sets, wherein a first set of ROs in the plurality of RO sets is associated with a first set of parameters for a low-resolution ADC and a first mode of the network node, and a second set of ROs in the plurality of RO sets is associated with a second set of parameters for a high-resolution ADC and a second mode of the network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to perform the following operations: when operating in a particular mode of the network node, communicate using a particular set of ROs in the plurality of RO sets associated with the particular mode of the network node.

[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 perform the following operations: receive configuration information identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode. The set of instructions, when executed by one or more processors of the network node, may cause the network node to perform the following operations: when based at least in part on a timing corresponding to a particular mode in the first mode or the second mode, communicate using a particular RO set of the plurality of RO sets associated with the particular mode.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending configuration information associated with identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode of the apparatus, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the apparatus. The apparatus may include means for communicating using a particular RO set of the plurality of RO sets associated with the particular mode of the apparatus when operating in a particular mode of the apparatus.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for receiving configuration information identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode. The apparatus may include: means for communicating using a particular RO set of the plurality of RO sets associated with a particular mode when based at least in part on timing corresponding to the particular mode of the first mode or the second mode.

[0015] In summary, aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, distributed units (DUs), central units (CUs), mobile terminals (MTs), network nodes, wireless communication devices, and / or processing systems as fully described herein with reference to the accompanying drawings and descriptions and as illustrated by the accompanying drawings and descriptions.

[0016] The foregoing has been fairly broadly outlined according to the features and technical advantages of the examples of the present disclosure, 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 the basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and methods of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0017] Although various aspects are described in the present disclosure by the description of 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 embodiments and other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchase equipment, medical devices 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 device incorporating the described aspects and features may include additional components and features for the implementation and implementation of the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The various aspects described herein are intended to be practiced in a variety of devices, components, systems, distributed arrangements, and / or end-user devices of varying sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to understand the above-mentioned features of the present disclosure in detail, a more specific description of the invention briefly summarized above can be obtained by reference to various aspects (some of which are shown 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 its scope, as the specification may allow other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

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

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

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

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

[0023] Figure 5 is a diagram illustrating an example of a two-step random access procedure according to the present disclosure.

[0024] Figure 6 is a schematic diagram illustrating an example of a four-step random access procedure according to the present disclosure.

[0025] Figure 7 is a schematic diagram illustrating an example associated with a four-step random access channel procedure according to the present disclosure.

[0026] Figure 8-9 is a diagram illustrating an example process associated with a four-step random access channel process in accordance with the present disclosure.

[0027] Fig.10 is a schematic diagram illustrating an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0028] 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. Specifically, 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 present disclosure disclosed herein, whether the aspect is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect. For example, using any number of aspects set forth herein, a device can be implemented or a method can be practiced. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0029] 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 may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0030] Although various aspects may be described herein using terminology 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 post-5G RAT (e.g., 6G).

[0031] Figure 1 1 is a schematic diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more base stations 110 (shown as BS110a, BS110b, BS110c, and BS110d), a user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other network entities. The base station 110 is an entity that communicates with the UE 120. The base station 110 (sometimes referred to as a BS) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a transmit receive point (TRP). Each base station 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of ​​a base station 110 and / or a base station subsystem serving the coverage area, depending on the context in which the term is used.

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

[0033] In some examples, the cell may not necessarily be stationary, and the geographic area of ​​the cell may move according to the location of the mobile base station 110 (e.g., a mobile base station). In some examples, the base stations 110 may be interconnected with each other and / or with one or more other base stations 110 or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces (such as direct physical connections or virtual networks) using any suitable transport network.

[0034] The wireless network 100 may include one or more relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a base station 110 or a UE 120) and send data transmissions to a downstream station (e.g., a UE 120 or a base station 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown in FIG. 1 , BS 110d (eg, a relay base station) can communicate with BS 110a (eg, a macro base station) and UE 120d to facilitate communication between BS 110a and UE 120d. A base station 110 that relays communication may be referred to as a relay station, relay base station, relay, or the like.

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

[0036] A network controller 130 may be coupled to or in communication with a set of base stations 110 and may provide coordination and control for the base stations 110. The network controller 130 may communicate with the base stations 110 via backhaul communication links. The base stations 110 may communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0037] UE 120 can be dispersed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, access terminals, terminals, mobile stations, and / or subscriber units. 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 device, 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 unit), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, and / or any other suitable device configured to communicate via a wireless medium.

[0038] Some UEs 120 may be considered as machine type communications (MTC) or evolved or enhanced machine type communications (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120 (such as processor components and / or memory components). 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.

[0039] In general, 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. A 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.

[0040] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary 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) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, or vehicle-to-pedestrian (V2P) protocol), and / or mesh network. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0041] Devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., by frequency or wavelength. For example, 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 range names FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as the “Sub-6 GHz” band in various documents and articles. Similar naming issues sometimes arise regarding FR2, which is often referred to (interchangeably) as the “millimeter wave” band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0042] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands of these mid-band frequencies as the frequency range name FR3 (7.125GHz-24.25GHz). The frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore 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 above 52.6GHz. For example, three higher operating frequency bands have been identified as frequency range names 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.

[0043] With the above aspects in mind, unless otherwise specifically stated, it should be understood that the term "sub-6 GHz" or similar terms (if used herein) can broadly represent frequencies that can be lower than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that the term "millimeter wave" or similar terms (if used herein) can broadly represent frequencies that can include mid-band frequencies, frequencies that can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or frequencies that can be within the EHF band. It is expected that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1 and / or FR5) can be modified, and the techniques described herein can be applicable to those modified frequency ranges.

[0044] In some aspects, a network node (e.g., base station 110) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may: send configuration information associated with identifying a plurality of random access channel (RACH) opportunity (RO) sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution analog-to-digital converter (ADC) and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the network node; and when operating in a particular mode of the network node, communicate using a particular RO set of the plurality of RO sets associated with the particular mode of the network node. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0045] In some aspects, a network entity (e.g., base station 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may: receive configuration information identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode; and communicate using a particular RO set of the plurality of RO sets associated with a particular mode when based at least in part on a timing corresponding to a particular mode in the first mode or the second mode. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0046] As noted above, Figure 1 is provided as an example. Other examples may differ from those described above. Figure 1 Examples described.

[0047] Figure 2 2 is a schematic diagram showing an example 200 of base station 110 communicating with UE 120 in wireless network 100 according to the present disclosure. Base station 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1).

[0048] At the base station 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the 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 base station 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 provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may 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., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, if 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 respective output symbol stream (e.g., for OFDM) using a respective modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a respective 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).

[0049] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the base station 110 and / or other base stations 110, and may 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 may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may 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 may further process the input samples (e.g., for OFDM) using a demodulator component to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols (if applicable), and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. A 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 a housing 284.

[0050] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. For example, the network controller 130 may include one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0051] 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 be coupled to one or more transmit components and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0052] 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 precoded by a TX MIMO processor 266 (if applicable), further processed by a modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 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. A processor (eg, controller / processor 280) and memory 282 may use a transceiver to perform aspects of any of the methods described herein (eg, reference Figure 7-10 ).

[0053] At the base station 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 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent 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 base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the base station 110 may include a modulator and a demodulator. In some examples, the base station 110 includes a transceiver. The transceiver may include any combination of an antenna 234, a modem 232, a MIMO detector 236, a receive processor 238, a transmit processor 220, and / or a TX MIMO processor 230. A processor (e.g., controller / processor 240) and memory 242 may use the transceiver to perform aspects of any of the methods described herein (e.g., reference 1 to FIG. 1 ). Figure 7-10 ).

[0054] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of may perform one or more techniques associated with the four-step random access channel procedure, as described in more detail elsewhere herein. In some aspects, the network node described herein is Figure 2 The base station 110 shown in FIG. 1 is included in the base station 110, or includes one or more components of the base station 110. In some aspects, the network node described herein is Figure 2 The UE 120 shown is included in the UE 120, or includes one or more components of the UE 120. The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may 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 base station 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, conversion, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example Figure 8 The process of 800 Fig. 9 The process 900 and / or operations of other processes as described herein. In some examples, executing instructions may include: running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0055] In some aspects, a network node (e.g., base station 11) includes: a unit for sending configuration information associated with identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the network node; and / or a unit for communicating using a particular RO set of the plurality of RO sets associated with the particular mode of the network node when operating in a particular mode of the network node. In some aspects, the unit for the network node to perform operations described herein may include, for example, one or more of the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.

[0056] In some aspects, a network node (e.g., UE 120) includes: means for receiving configuration information identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low resolution ADC and a first mode, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high resolution ADC and a second mode; and / or means for communicating using a particular RO set of the plurality of RO sets associated with a particular mode when based at least in part on a timing corresponding to the particular mode in the first mode or the second mode. In some aspects, means for the network node to perform operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0057] Although Figure 2 The blocks in the 200 and 210 are shown as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to 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.

[0058] As pointed out above, Figure 2 is provided as an example. Other examples may differ from those described above. Figure 2 Examples described.

[0059] Figure 3 is a schematic diagram illustrating an example 300 of a radio access network according to the present disclosure.

[0060] As shown by reference numeral 305, a conventional (e.g., 3G, 4G, or LTE) radio access network may include multiple base stations 310 (e.g., access nodes (ANs)), wherein each base station 310 communicates with a core network via a wired backhaul link 315 (such as a fiber optic connection). The base stations 310 may communicate with UEs 320 via access links 325 (which may be wireless links). Figure 3 The base station 310 shown in FIG. 3 may be a base station 310 in FIG. Figure 1 The base station 110 is shown in FIG. Figure 3 The UE 320 shown in FIG. 3 may be a Figure 1 UE 120 is shown in FIG.

[0061] As shown in the reference numeral 330, the radio access network may include a wireless backhaul network, which is sometimes referred to as an integrated access and backhaul (IAB) network. In an IAB network, at least one base station is an anchor base station 335, which communicates with the core network via a wired backhaul link 340 (such as a fiber optic connection). The anchor base station 335 may also be referred to as an IAB donor (or IAB-donor). The IAB network may include one or more non-anchor base stations 345, which are sometimes referred to as relay base stations or IAB nodes (or IAB-nodes). The non-anchor base station 345 may communicate directly or indirectly with the anchor base station 335 via one or more backhaul links 350 (for example, via one or more non-anchor base stations 345) to form a backhaul path to the core network for carrying backhaul traffic. The backhaul link 350 may be a wireless link. The anchor base station 335 and / or the non-anchor base station 345 may communicate with one or more UEs 355 via an access link 360, which may be a wireless link for carrying access traffic. In Figure 3 The anchor base station 335 and / or the non-anchor base station 345 shown in FIG. Figure 1 The base station 110 is shown in FIG. Figure 3 The UE 355 shown in FIG. 3 may be a Figure 1 UE 120 is shown in FIG.

[0062] As shown in the figure numeral 365, in some aspects, the radio access network including the IAB network may use millimeter wave technology and / or directional communication (e.g., beamforming) for communication between base stations and / or UEs (e.g., between two base stations, between two UEs, and / or between a base station and a UE). For example, a wireless backhaul link 370 between base stations may use millimeter wave signals to carry information and / or may be directed toward a target base station using beamforming. Similarly, a wireless access link 375 between a UE and a base station may use millimeter wave signals and / or may be directed toward a target wireless node (e.g., a UE and / or a base station). In this way, inter-link interference may be reduced.

[0063] Figure 3 The configurations of the base stations and UEs in FIG. 1 are shown as examples, and other examples are contemplated. For example, in Figure 3 The one or more base stations shown in the figure may be replaced by one or more UEs communicating via a UE-to-UE access network (e.g., a peer-to-peer network or a device-to-device network). In this case, an "anchor node" may refer to a UE that communicates directly with a base station (e.g., an anchor base station or a non-anchor base station).

[0064] In an IAB network such as that shown by reference numerals 330 and 365, each device may be referred to as a node or network node. For example, base station 345 may be a first network node and UE 355 may be a second network node. Additionally or alternatively, as described in more detail herein, a device may include multiple network nodes representing multiple hops in a communication path. For example, base station 345 may be associated with a distributed architecture (e.g., a central unit (CU) and one or more distributed units (DUs)), wherein each hop in the distributed architecture (e.g., a CU and each DU) is referred to as a separate network node. In this case, a first network node (e.g., a CU) may communicate with a second network node (e.g., another CU) on a backhaul and may send to a third network node on a downlink (the third network node is, for example, a DU, which may further send to a fourth network node (such as a UE) on a downlink).

[0065] As indicated above, Figure 3 is provided as an example. Other examples may differ from those described above. Figure 3 Examples described.

[0066] Figure 4 is a schematic diagram illustrating an example 400 of an IAB network architecture according to the present disclosure.

[0067] like Figure 4As shown, the IAB network may include an IAB donor 405 (shown as IAB-donor) connected to the core network via a wired connection (shown as wired backhaul). For example, the Ng interface of the IAB donor 405 may terminate at the core network. Additionally or alternatively, the IAB donor 405 may be connected to one or more devices of the core network that provide a core access and mobility management function (AMF). The IAB donor 405 may include a base station 110, such as an anchor base station, as described above in conjunction with Figure 3 As shown in the figure, the IAB donor 405 may include a CU, which may perform an access node controller (ANC) function and / or an AMF function. The CU may configure the DU of the IAB donor 405 and / or may configure one or more IAB nodes 410 (e.g., MTs and / or DUs of the IAB nodes 410) connected to the core network via the IAB donor 405. Therefore, the CU of the IAB donor 405 may control and / or configure the entire IAB network connected to the core network via the IAB donor 405, such as by using control messages and / or configuration messages (e.g., radio resource control (RRC) configuration messages or F1 application protocol (F1-AP) messages).

[0068] like Figure 4 As further shown in FIG. 4 , the IAB network may include IAB nodes 410 (shown as IAB-node 1, IAB-node 2, and IAB-node 3) connected to the core network via an IAB donor 405. As shown, the IAB node 410 may include a mobile terminal (MT) function (sometimes also referred to as a UE function (UEF)) and may include a DU function (sometimes also referred to as an access node function (ANF)). The MT function of an IAB node 410 (e.g., a child node) may be controlled and / or scheduled by another IAB node 410 (e.g., a parent node of the child node) and / or by the IAB donor 405. The DU function of an IAB node 410 (e.g., a parent node) may control and / or schedule other IAB nodes 410 (e.g., a child node of the parent node) and / or UE 120. Therefore, the DU may be referred to as a scheduling node or a scheduling component, and the MT may be referred to as a scheduled node or a scheduled component. The IAB donor 405 may include the DU function but not the MT function. That is, the IAB donor 405 may configure, control and / or schedule the communication of the IAB node 410 and / or the UE 120. The UE 120 may include only the MT function and not the DU function. That is, the communication of the UE 120 may be controlled and / or scheduled by the IAB donor 405 and / or the IAB node 410 (e.g., the parent node of the UE 120).

[0069] When the first node controls and / or schedules communication for the second node (e.g., when the first node provides the DU function for the MT function of the second node), the first node may be referred to as the parent node of the second node, and the second node may be referred to as the child node of the first node. The child node of the second node may be referred to as the grandchild node of the first node. Therefore, the DU function of the parent node may control and / or schedule communication for the child node of the parent node. The parent node may be the IAB donor 405 or the IAB node 410, and the child node may be the IAB node 410 or the UE 120. The communication of the MT function of the child node may be controlled and / or scheduled by the parent node of the child node.

[0070] like Figure 4 As further shown in FIG. 4 , the link between UE 120 (e.g., which has only MT functionality but not DU functionality) and IAB donor 405 or between UE 120 and IAB node 410 may be referred to as access link 415. Access link 415 may be a wireless access link that provides UE 120 with radio access to the core network via IAB provider 405 and optionally via one or more IAB nodes 410. Thus, in Figure 4 The network shown in may be referred to as a multi-hop network or a wireless multi-hop network.

[0071] like Figure 4 As further shown in FIG. 4 , the link between the IAB supplier 405 and the IAB node 410 or between two IAB nodes 410 may be referred to as a backhaul link 420. The backhaul link 420 may be a wireless backhaul link that provides radio access to the core network to the IAB node 410 via the IAB supplier 405 and optionally via one or more other IAB nodes 410. In the IAB network, network resources (e.g., time resources, frequency resources, and / or space resources) for wireless communication may be shared between the access link 415 and the backhaul link 420. In some aspects, the backhaul link 420 may be a primary backhaul link or an auxiliary backhaul link (e.g., a backup backhaul link). In some aspects, the auxiliary backhaul link may be used if the primary backhaul link fails, becomes congested, and / or becomes overloaded, etc. For example, if the primary backhaul link between the IAB node 2 and the IAB node 1 fails, the backup link 425 between the IAB node 2 and the IAB node 3 may be used for backhaul communication. As used herein, a “node,” “network node,” or “wireless node” may refer to the IAB donor 405 or the IAB node 410 .

[0072] As indicated above, Figure 4 is provided as an example. Other examples may differ from those described above. Figure 4 Examples described.

[0073] Figure 5 is a schematic diagram illustrating an example 500 of a two-step random access procedure according to the present disclosure. Figure 5 As shown, base station 110 and UE 120 may communicate with each other to perform a two-step random access procedure.

[0074] As indicated by reference numeral 505, the base station 110 may send and the UE 120 may receive one or more synchronization signal blocks (SSBs) and random access configuration information. In some aspects, the random access configuration information may be sent in system information (e.g., in one or more system information blocks (SIBs)) and / or SSBs, and / or indicated by system information and / or SSBs, such as for contention-based random access. Additionally or alternatively, the random access configuration information may be sent in a radio resource control (RRC) message and / or a physical downlink control channel (PDCCH) command message that triggers a RACH procedure, such as for contention-free random access. The random access configuration information may include one or more parameters to be used in a two-step random access procedure, such as one or more parameters for sending a random access message (RAM) and / or receiving a random access response (RAR) to a RAM.

[0075] As shown in reference numeral 510, UE 120 can send a RAM preamble, and base station 110 can receive the RAM preamble. As shown in reference numeral 515, UE 120 can send a RAM payload, and base station 110 can receive the RAM payload. As shown in the figure, UE 120 can send a RAM preamble and a RAM payload to the base station as part of the initial (or first) step of the two-step random access process. In some aspects, RAM can be referred to as message A, msgA, the first message, or the initial message in the two-step random access process. In addition, in some aspects, the RAM preamble can be referred to as a message A preamble, msgA preamble, preamble, or physical random access channel (PRACH) preamble, and the RAM payload can be referred to as a message A payload, msgA payload, or payload. In some aspects, RAM can include some or all of the contents of message 1 (msg1) and message 3 (msg3) of the four-step random access process described in more detail below. For example, the RAM preamble may include some or all of the contents of message 1 (e.g., a PRACH preamble), and the RAM payload may include some or all of the contents of message 3 (e.g., a UE identifier, uplink control information (UCI), and / or a physical uplink shared channel (PUSCH) transmission).

[0076] As indicated by reference numeral 520, the base station 110 may receive the RAM preamble transmitted by the UE 120. If the base station 110 successfully receives and decodes the RAM preamble, the base station 110 may receive and decode the RAM payload.

[0077] As shown in the reference numeral 525, the base station 110 may send a RAR (sometimes referred to as a RAR message). As shown, the base station 110 may send a RAR message as part of the second step of the two-step random access procedure. In some aspects, the RAR message may be referred to as message B, msgB, or a second message in the two-step random access procedure. The RAR message may include some or all of the contents of message 2 (msg2) and message 4 (msg4) of the four-step random access procedure. For example, the RAR message may include a detected PRACH preamble identifier, a detected UE identifier, a timing advance value, and / or contention resolution information.

[0078] As shown at 530, as part of the second step of the two-step random access procedure, the base station 110 may send a physical downlink control channel (PDCCH) communication for the RAR. The PDCCH communication may schedule a physical downlink shared channel (PDSCH) communication including the RAR. For example, the PDCCH communication may indicate a resource allocation for the PDSCH communication (e.g., in downlink control information (DCI)).

[0079] As shown at 535, as part of the second step of the two-step random access procedure, the base station 110 may send a PDSCH communication for the RAR as scheduled by the PDCCH communication. The RAR may be included in a medium access control (MAC) protocol data unit (PDU) of the PDSCH communication. As shown at 540, if the UE 120 successfully receives the RAR, the UE 120 may send a hybrid automatic repeat request (HARQ) acknowledgment ACK.

[0080] As pointed out above, Figure 5 is provided as an example. Other examples may differ from those described above. Figure 5 Examples described.

[0081] Figure 6 6 is a schematic diagram illustrating an example 600 of a four-step random access procedure according to the present disclosure. Figure 6 As shown, base station 110 and UE 120 may communicate with each other to perform a four-step random access procedure.

[0082] As indicated by reference numeral 605, the base station 110 may send and the UE 120 may receive one or more SSBs and random access configuration information. In some aspects, the random access configuration information may be sent in system information (SI) (e.g., in one or more system information blocks (SIBs)) and / or SSBs, and / or indicated by the system information and / or SSBs, such as for contention-based random access. Additionally or alternatively, the random access configuration information may be sent in a radio resource control (RRC) message and / or a physical downlink control channel (PDCCH) command message that triggers a RACH procedure, such as for contention-free random access. The random access configuration information may include one or more parameters to be used in the random access procedure, such as one or more parameters for sending a RAM and / or one or more parameters for receiving a RAR. For example, the random access configuration may identify a set of RACH opportunities (ROs) in which resources are allocated for communications associated with the RACH procedure.

[0083] As shown in reference numeral 610, UE 120 may send a RAM, which may include a preamble (sometimes referred to as a random access preamble, a PRACH preamble, or a RAM preamble). In a four-step random access procedure, a message including a preamble may be referred to as message 1, msg1, MSG1, a first message, or an initial message. The random access message may include a random access preamble identifier.

[0084] As shown in reference numeral 615, the base station 110 may send a RAR as a response to the preamble. In the four-step random access procedure, the message including the RAR may be referred to as message 2, msg2, MSG2, or a second message. In some aspects, the RAR may indicate a detected random access preamble identifier (e.g., the random access preamble identifier received from the UE 120 in msg1). Additionally or alternatively, the RAR may indicate a resource allocation to be used by the UE 120 to send message 3 (msg3).

[0085] In some aspects, as part of the second step of the four-step random access procedure, the base station 110 may send a PDCCH communication for the RAR. The PDCCH communication may schedule a PDSCH communication including the RAR. For example, the PDCCH communication may indicate a resource allocation for the PDSCH communication. Furthermore, as part of the second step of the four-step random access procedure, the base station 110 may send a PDSCH communication for the RAR as scheduled by the PDCCH communication. The RAR may be included in the MAC PDU of the PDSCH communication.

[0086] As indicated by reference numeral 620, UE 120 may send an RRC connection request message. The RRC connection request message may be referred to as message 3, msg3, MSG3, or a third message of the four-step random access procedure. In some aspects, the RRC connection request may include a UE identifier, UCI, and / or PUSCH communication (e.g., RRC connection request).

[0087] As indicated by reference numeral 625, base station 110 may send an RRC connection setup message. The RRC connection setup message may be referred to as message 4, msg4, MSG4, or a fourth message of the four-step random access procedure. In some aspects, the RRC connection setup message may include a detected UE identifier, a timing advance value, and / or contention resolution information. As indicated by reference numeral 630, if UE 120 successfully receives the RRC connection setup message, UE 120 may send a HARQ ACK.

[0088] As pointed out above, Figure 6 is provided as an example. Other examples may differ from those described above. Figure 6 Examples described.

[0089] As described above, a RACH procedure (such as a two-step RACH procedure or a four-step RACH procedure) may use energy resources of a network node (such as a DU of a base station (e.g., a DU communicating with another network node (such as a UE))). In order to reduce the use of energy resources, the network node may periodically enter a power saving mode. For example, the DU may be configured to enter a power saving mode during a subset of time resources in a time slot set. In the power saving mode, the DU may be configured to abandon certain periodic monitoring or transmissions, reduce the number of antennas used for communication (e.g., relative to a non-power saving mode, or change an analog-to-digital converter (ADC) or a digital-to-analog converter (DAC) (e.g., from a high-resolution ADC to a low-resolution ADC). Reducing energy resource usage by entering a power saving mode may enable the DU to be used in certain deployments, such as in a self-organizing network (SON) deployment or a minimized drive test (MDT) deployment.

[0090] However, when the network node is configured for a RACH procedure (such as a four-step RACH procedure), the configuration for the RACH procedure may not take into account that the network node is operating in an energy-saving mode. Therefore, communication performance may be poor or interrupted because the received power, preamble format, subcarrier spacing (SCS) or reference signal received power (RSRP) threshold, etc. are poorly aligned with the configuration of the network node in the energy-saving mode (e.g., a network node using a low-resolution ADC).

[0091] Some aspects described herein enable ROs to be configured with RACH configurations aligned with energy-saving modes of network nodes. For example, a DU may be configured with a first set of ROs aligned with an energy-saving mode (e.g., in time resources in which the DU is in energy-saving mode) and a second set of ROs aligned with a non-energy-saving mode (e.g., in time resources in which the DU is not in energy-saving mode). In this case, a first set of ROs, which may be referred to as "low-resolution ROs," may be associated with a first RACH configuration aligned with the DU using a low-resolution ADC, and a second set of ROs, which may be referred to as "high-resolution ROs," may be associated with a second RACH configuration aligned with the DU using a high-resolution ADC. In this case, different RACH configurations address different detection reliabilities associated with using different ADCs, thereby improving communication performance and avoiding communication interruptions relative to using a single RACH configuration for all ROs for a four-step RACH process.

[0092] Figure 7 is a schematic diagram illustrating an example 700 associated with a four-step RACH procedure. Figure 7 As shown, a first network node 705 (eg, UE 120) and a second network node 710 (eg, a DU of base station 110) may communicate with each other.

[0093] As indicated by reference numeral 715, the first network node 705 may receive information identifying random access configurations for a first set of ROs and a second set of ROs. For example, the second network node 710 may configure the first network node 705 with a first set of ROs associated with a first random access configuration (e.g., a first set of parameters) and a second set of ROs associated with a second random access configuration (e.g., a second set of parameters). In this case, the first set of ROs may be associated with an energy-saving mode of the second network node 710 [NN1] [NN2] (e.g., occurring in a time resource of the energy-saving mode), and the second set of ROs may be associated with a non-energy-saving mode of the second network node 710 (e.g., occurring in a time resource of the non-energy-saving mode). In some aspects, the energy-saving mode may be a time period in which the second network node 710 uses a low-resolution ADC (e.g., which uses less energy than a high-resolution ADC), and the non-energy-saving mode may be a time period in which the second network node 710 uses a high-resolution ADC (e.g., which uses more energy than the low-resolution ADC). The terms "low resolution" and "high resolution" may be relative terms, such that a low-resolution ADC is an ADC having a lower resolution than a high-resolution ADC. In some aspects, the second network node 710 may have a single ADC capable of operating multiple resolutions. In this case, a "low resolution ADC" may refer to a single ADC operating at a lower resolution, and a "high resolution ADC" may refer to a single ADC operating at a higher resolution.

[0094] In some aspects, the first random access configuration and the second random access configuration may differ in one or more parameters. For example, the first random access channel configuration may have a higher target received power, a larger SSB RSRP threshold, a longer preamble format, or a larger SCS than the second random access channel configuration, etc. In this way, the second network node 710 and the first network node 705 may compensate for the lower detection reliability of the low-resolution ADC and ensure that accurate uplink timing estimation can be achieved when the low-resolution ADC is used.

[0095] Additionally or alternatively, the first random access channel configuration may be different from the second random access channel configuration for timing advance (TA) granularity. For example, the first random access channel configuration may be associated with a coarser TA granularity to cope with a low-resolution ADC with lower uplink timing estimation accuracy used with the first RO set and the first random access channel configuration. Additionally or alternatively, the first random access channel configuration may be different from the second random access channel configuration for the configuration of a specific message for a four-step RACH process. For example, the first random access channel configuration may have an SCS for msg3 for a four-step RACH process that is different from the second random access channel configuration. Similarly, msg3 may be configured with an extended cyclic prefix (ECP) for the first random access channel configuration but not for the second random access channel configuration. In this case, using a smaller SCS (with a larger cyclic prefix) or ECP for msg3 can compensate for a less accurate (coarser) TA used in conjunction with a low-resolution ADC. In some aspects, the second network node 710 may indicate the use of a smaller SCS or ECP in a system information block (SIB) type 1 (SIB1) message or in a grant for RACH msg2 or msg3 (eg, rather than in RACH configuration information).

[0096] Additionally or alternatively, the first random access channel configuration may differ from the second random access channel configuration with respect to a RAR window or backoff indicator for RACH retransmissions. For example, the second network node 710 may indicate a shorter RAR window or a shorter backoff indicator for a first RO set associated with a low-resolution ADC and an energy-saving mode. In this case, when a low-resolution ADC is used, the second network node 710 copes with lower detection reliability of the RACH preamble by enabling the first network node 705 to perform RACH retransmissions in a reduced amount of time, thereby avoiding excessive latency.

[0097] In some aspects, the second network node 710 may provide an explicit indication of which RO set is associated with the low resolution ADC. For example, the second network node 710 may provide the indication to the UE 120 via a broadcast message (eg, a SIB1 message or a radio resource control (RRC) message) over the Uu interface. Additionally or alternatively, the network node 710 may provide an indication on a backhaul interface, such as on an F1 interface (when the network nodes 705 and 710 are DUs and CUs, respectively, or in multi-hop communications) or an Xn interface (when the network nodes 705 and 710 are both CUs, or in multi-hop communications). In this case, the first network node 705 may receive an explicit indication of different parameters for the random access channel configuration, or may derive one or more different parameters for the random access channel configuration based at least in part on which random access channel configuration is associated with the use of the low-resolution ADC. In some aspects, the second network node 710 may provide information identifying the random access channel configuration without an explicit indication of which RO set is associated with the use of the low-resolution ADC. In this case, the first network node 705 may determine which RO set is associated with the use of the low-resolution ADC based at least in part on the parameters of the random access channel configuration.

[0098] In some aspects, the second network node 710 may configure and indicate a usage mode and an energy saving mode of the low resolution ADC. For example, the second network node 710 may indicate a mode for an RO configuration period or a RACH associated period, during which the energy saving mode may be enabled and an RO set associated with the energy saving mode may be used. In this case, the second network node 710 may send a bitmap that identifies a mode across a set of RO configuration periods or RACH associated periods.

[0099] like Figure 7As further shown in , and as indicated by reference numeral 720, the first network node 705 and the second network node 710 communicate to perform a four-step RACH procedure, as described above. For example, when the first RO set is used for the four-step RACH procedure (e.g., during an energy-saving mode of the second network node 710), the first network node 705 and the second network node 710 may use a first RACH configuration. In contrast, when the second RO set is used for the four-step RACH procedure (e.g., during a non-energy-saving mode of the second network node 710), the first network node 705 and the second network node 710 may use a second RACH configuration. In this case, when the first network node 705 initiates the RACH procedure, the first network node 705 ensures that the mode of the second network node 710 (e.g., whether the second network node 710 is using a low-resolution ADC or a high-resolution ADC) is accounted for, thereby improving RACH performance relative to using a single RACH configuration for all ROs or relative to using multiple RACH configurations that are not aligned with whether the second network node 710 is using an energy-saving mode.

[0100] As pointed out above, Figure 7 is provided as an example. Other examples may differ from those described above. Figure 7 Examples described.

[0101] Figure 8 is a diagram illustrating an example process 800, performed, for example, by a network node, in accordance with the present disclosure. The example process 800 is an example in which a network node (eg, network node 710) performs operations associated with a four-step random access channel procedure.

[0102] like Figure 8 As shown, in some aspects, process 800 may include sending configuration information associated with identifying a plurality of RO sets, wherein a first RO set in the plurality of RO sets is associated with a first parameter set for a first mode of a low-resolution ADC and a network node, and a second RO set in the plurality of RO sets is associated with a second parameter set for a second mode of a high-resolution ADC and a network node (block 810). For example, a network node (e.g., using Fig.10 The communication manager 150 and / or the sending component 1004 depicted in the figure can send configuration information associated with identifying multiple RO sets, wherein a first RO set in the multiple RO sets is associated with a first parameter set for a first mode of a low-resolution ADC and a network node, and a second RO set in the multiple RO sets is associated with a second parameter set for a second mode of a high-resolution ADC and a network node, as described above.

[0103] like Figure 8As further shown in FIG. 8 , in some aspects, process 800 may include: when operating in a specific mode of the network node, communicating using a specific RO set of the plurality of RO sets associated with the specific mode of the network node (block 820). For example, a network node (e.g., using Fig.10 The communication manager 150 and / or the receiving component 1002 or the sending component 1004 depicted in the figure may: when operating in a specific mode of the network node, communicate using a specific RO set of the multiple RO sets associated with the specific mode of the network node, as described above.

[0104] 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.

[0105] In the first aspect, the specific mode is a first mode, and the specific RO set is a first RO set.

[0106] In a second aspect, alone or in combination with the first aspect, the specific mode is a second mode, and the specific RO set is a second RO set.

[0107] In a third aspect, either alone or in combination with one or more of the first and second aspects, less energy is consumed in the first mode than in the second mode.

[0108] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the first parameter set is different from the second parameter set for at least one of the following: target received power, synchronization signal block reference signal received power threshold, preamble code format, or subcarrier spacing.

[0109] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the process 800 includes sending an indication of which RO set of the plurality of RO sets corresponds to the first RO set and the low resolution ADC.

[0110] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the indication is transmitted on the Uu interface or the backhaul interface via at least one of the following: a broadcast message, a system information block message, a dedicated radio resource control message, an F1 interface message or an Xn interface message.

[0111] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the first RO set is associated with a first timing advance granularity, and the second RO set is associated with a second timing advance granularity different from the first timing advance granularity.

[0112] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, a RACH message 3 (msg3) associated with a first RO set is associated with a first subcarrier spacing (SCS) value, and a RACH msg3 associated with a second RO set is associated with a second SCS value different from the first SCS value.

[0113] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 800 includes sending an indication of a first SCS value or a second SCS value using at least one of a system information block message, a dedicated radio resource control message, a RACH msg2, or a grant of resources for a RACH msg3.

[0114] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the RACH message 3 (msg3) associated with the first RO set is configured with an extended cyclic prefix, and the RACH message 3 (msg3) associated with the second RO set is not configured with an extended cyclic prefix.

[0115] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 800 includes sending information identifying a mode for the plurality of RO sets.

[0116] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 800 includes: sending information indicating a RAR window or a backoff indicator for RACH retransmission for a first RO set, wherein the RAR window or the backoff indicator is different from the RAR window or the backoff indicator for a second RO set.

[0117] although Figure 8 Example blocks of process 800 are 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 of the process 800 may be executed in parallel.

[0118] 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 705) performs operations associated with a four-step random access channel procedure.

[0119] like Fig. 9As shown, in some aspects, process 900 may include receiving configuration information identifying a plurality of RO sets, wherein a first RO set in the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode, and a second RO set in the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode (block 910). For example, a network node (e.g., using Fig.10 The communication manager 140 and / or receiving component 1002 depicted in the figure can receive configuration information identifying multiple RO sets, wherein a first RO set in the multiple RO sets is associated with a first parameter set for a low resolution ADC and a first mode, and a second RO set in the multiple RO sets is associated with a second parameter set for a high resolution ADC and a second mode, as described above.

[0120] like Fig. 9 As further shown in FIG. 9 , in some aspects, process 900 may include: communicating using a specific RO set associated with a specific mode in the plurality of RO sets when, based at least in part on a timing corresponding to a specific mode in the first mode or the second mode (block 920). For example, a network node (e.g., using Fig.10 The communication manager 140 and / or the receiving component 1002 or the sending component 1004 depicted in the figure may: communicate using a specific RO set associated with a specific mode among the multiple RO sets when at least partially based on a timing corresponding to a specific mode in the first mode or the second mode, as described above.

[0121] Process 900 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.

[0122] In the first aspect, the specific mode is a first mode, and the specific RO set is a first RO set.

[0123] In a second aspect, alone or in combination with the first aspect, the specific mode is a second mode, and the specific RO set is a second RO set.

[0124] In a third aspect, either alone or in combination with one or more of the first and second aspects, less energy is consumed in the first mode than in the second mode.

[0125] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the first parameter set is different from the second parameter set for at least one of the following: target received power, synchronization signal block reference signal received power threshold, preamble code format, or subcarrier spacing.

[0126] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the process 900 includes receiving an indication of which RO set of the plurality of RO sets corresponds to a first RO set and a low resolution ADC.

[0127] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the indication is transmitted on the Uu interface or the backhaul interface via at least one of the following: a broadcast message, a system information block message, a dedicated radio resource control message, an F1 interface message or an Xn interface message.

[0128] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the first RO set is associated with a first timing advance granularity, and the second RO set is associated with a second timing advance granularity different from the first timing advance granularity.

[0129] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, a RACH message 3 (msg3) associated with a first RO set is associated with a first subcarrier spacing (SCS) value, and a RACH msg3 associated with a second RO set is associated with a second SCS value different from the first SCS value.

[0130] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 900 includes receiving an indication of a first SCS value or a second SCS value via at least one of a system information block message, a dedicated radio resource control message, a RACH msg2, or a grant of resources for a RACH msg3.

[0131] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the RACH message 3 (msg3) associated with the first RO set is configured with an extended cyclic prefix, and the RACH message 3 (msg3) associated with the second RO set is not configured with an extended cyclic prefix.

[0132] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 900 includes receiving information identifying a mode for the plurality of RO sets.

[0133] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 900 includes: receiving information indicating a RAR window or a backoff indicator for RACH retransmission for a first RO set, wherein the RAR window or the backoff indicator is different from the RAR window or the backoff indicator for a second RO set.

[0134] although Fig. 9 Example blocks of process 900 are 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 of the process 900 may be executed in parallel.

[0135] Fig.10 1 is a schematic diagram of an example apparatus 1000 for wireless communication. Apparatus 1000 may be a network node, or a network node 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 140 or 150. Communication manager 140 or 150 may include a RACH configuration component 1008, etc.

[0136] In some aspects, the apparatus 1000 may be configured to perform the Figure 7 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 The process of 800 Fig. 9 In some aspects, Fig.10 The apparatus 1000 and / or one or more components shown in the drawings may include a combination of Figure 2 Additionally or alternatively, Fig.10 One or more of the components shown in the figure may be combined with Figure 2 In addition or alternatively, one or more components in the component set may be at least partially implemented 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 executable by a controller or processor to perform the function or operation of the component.

[0137] The receiving component 1002 may receive communications from the apparatus 1006, such as reference signals, control information, data communications, or a combination thereof. 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 network nodes.

[0138] Transmit component 1004 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to apparatus 1006. In some aspects, one or more other components of apparatus 1000 may generate communications and may provide the generated communications to transmit component 1004 for transmission to apparatus 1006. In some aspects, transmit 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 apparatus 1006. In some aspects, transmit component 1004 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 1004 can be collocated with the receive component 1002 in a transceiver.

[0139] The sending component 1004 may: send configuration information associated with identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the network node. The receiving component 1002 or the sending component 1004 may: when operating in a specific mode of the network node, communicate using a specific RO set of the plurality of RO sets associated with the specific mode of the network node. The sending component 1004 may: send an indication of which RO set of the plurality of RO sets corresponds to the first RO set and the low-resolution ADC. The sending component 1004 may send an indication of the first SCS value or the second SCS value using at least one of the following: a system information block message, a dedicated radio resource control message, a RACH msg2, or a grant of resources for a RACH msg3. The sending component 1004 may send information identifying a mode for the plurality of RO sets. The transmitting component 1004 can transmit information indicating a RAR window or a backoff indicator for RACH retransmissions for a first RO set, wherein the RAR window or the backoff indicator is different from a RAR window or a backoff indicator for a second RO set.

[0140] The receiving component 1002 may receive configuration information identifying a plurality of RO sets, wherein a first RO set of the plurality of RO sets is associated with a first parameter set for a low-resolution ADC and a first mode, and a second RO set of the plurality of RO sets is associated with a second parameter set for a high-resolution ADC and a second mode. The receiving component 1002 and / or the sending component 1004 may communicate using a specific RO set of the plurality of RO sets associated with a specific mode of the network node when based at least in part on a timing corresponding to a specific mode of the first mode or the second mode. The receiving component 1002 may receive an indication of which RO set of the plurality of RO sets corresponds to the first RO set and the low-resolution ADC. The receiving component 1002 may receive an indication of a first SCS value or a second SCS value via at least one of a system information block message, a dedicated radio resource control message, a RACH msg2, or a grant of resources for a RACH msg3. The receiving component 1002 may receive information identifying a mode for the plurality of RO sets. The receiving component 1002 can receive information indicating a RAR window or a backoff indicator for RACH retransmissions for a first RO set, wherein the RAR window or the backoff indicator is different from a RAR window or a backoff indicator for a second RO set.

[0141] RACH configuring component 1008 may configure the plurality of RO sets for apparatus 1000 or apparatus 1006. RACH configuring component 1008 may configure the plurality of RO sets such that a first RO set is in a time resource associated with use of a low-resolution ADC (e.g., used by apparatus 1000 or apparatus 1006) and a second RO set is in a time resource associated with use of a high-resolution ADC (e.g., used by apparatus 1000 or apparatus 1006).

[0142] exist Fig.10 The number and arrangement of components shown in are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged differently than those shown in FIG. Fig.10 Two or more components shown in may be implemented in a single component, or in Fig.10 A single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 A set (one or more) of components shown in can perform the operations described in Fig.10 One or more functions performed by another set of components shown in FIG.

[0143] The following provides an overview of some aspects of the disclosure:

[0144] Aspect 1: A method of wireless communication performed by a network node, comprising: sending configuration information associated with identifying multiple random access channel (RACH) opportunity (RO) sets, wherein a first RO set of the multiple RO sets is associated with a first parameter set for a low-resolution analog-to-digital converter (ADC) and a first mode of the network node, and a second RO set of the multiple RO sets is associated with a second parameter set for a high-resolution ADC and a second mode of the network node; and when operating in a specific mode of the network node, communicating using a specific RO set of the multiple RO sets associated with the specific mode of the network node.

[0145] Aspect 2: The method according to aspect 1, wherein the specific mode is the first mode, and the specific RO set is the first RO set.

[0146] Aspect 3: The method according to aspect 1, wherein the specific mode is the second mode, and the specific RO set is the second RO set.

[0147] Aspect 4: The method according to any one of aspects 1 to 3, wherein less energy is consumed in the first mode than in the second mode.

[0148] Aspect 5: A method according to any one of Aspects 1 to 4, wherein the first parameter set is different from the second parameter set for at least one of the following: target received power, synchronization signal block reference signal received power threshold, preamble code format or subcarrier spacing.

[0149] Aspect 6: The method according to any one of aspects 1 to 5, further comprising: sending an indication of which RO set of the plurality of RO sets corresponds to the first RO set and the low-resolution ADC.

[0150] Aspect 7: The method according to Aspect 6, wherein the indication is transmitted on a Uu interface or a backhaul interface via at least one of the following: a broadcast message, a system information block message, a dedicated radio resource control message, an F1 interface message, or an Xn interface message.

[0151] Aspect 8: The method according to any one of aspects 1 to 7, wherein the first RO set is associated with a first timing advance granularity, and the second RO set is associated with a second timing advance granularity different from the first timing advance granularity.

[0152] Aspect 9: A method according to any one of Aspects 1 to 8, wherein a RACH message 3 (msg3) associated with the first RO set is associated with a first subcarrier spacing (SCS) value, and a RACHmsg3 associated with the second RO set is associated with a second SCS value different from the first SCS value.

[0153] Aspect 10: The method according to Aspect 9 also includes: using at least one of the following to send an indication of the first SCS value or the second SCS value: a system information block message, a dedicated radio resource control message, a RACH message 2 (msg2), or a grant of resources for the RACH msg3.

[0154] Aspect 11: A method according to any one of Aspects 1 to 10, wherein the RACH message 3 (msg3) associated with the first RO set is configured with an extended cyclic prefix, and the RACH message 3 (msg3) associated with the second RO set is not configured with an extended cyclic prefix.

[0155] Aspect 12: The method according to any one of aspects 1 to 11, further comprising: sending information identifying a mode for the plurality of RO sets.

[0156] Aspect 13: The method according to any one of Aspects 1 to 12 further includes: sending information indicating a RACH response (RAR) window or backoff indicator for RACH retransmission for the first RO set, wherein the RAR window or the backoff indicator is different from the RAR window or backoff indicator for the second RO set.

[0157] Aspect 14: A method of wireless communication performed by a network node, comprising: receiving configuration information identifying multiple random access channel (RACH) opportunity (RO) sets, wherein a first RO set of the multiple RO sets is associated with a first parameter set for a low-resolution analog-to-digital converter (ADC) and a first mode, and a second RO set of the multiple RO sets is associated with a second parameter set for a high-resolution ADC and a second mode; and when at least partially based on timing corresponding to a specific mode in the first mode or the second mode, communicating using a specific RO set of the multiple RO sets associated with the specific mode.

[0158] Aspect 15: The method according to Aspect 14, wherein the specific mode is the first mode, and the specific RO set is the first RO set.

[0159] Aspect 16: The method according to aspect 14, wherein the specific mode is the second mode, and the specific RO set is the second RO set.

[0160] Aspect 17: The method according to any one of aspects 14 to 16, wherein less energy is consumed in the first mode than in the second mode.

[0161] Aspect 18: A method according to any one of Aspects 14 to 17, wherein the first parameter set is different from the second parameter set for at least one of the following: target received power, synchronization signal block reference signal received power threshold, preamble code format or subcarrier spacing.

[0162] Aspect 19: The method according to any one of aspects 14 to 18, further comprising: receiving an indication of which RO set of the plurality of RO sets corresponds to the first RO set and the low-resolution ADC.

[0163] Aspect 20: The method according to aspect 19, wherein the indication is transmitted on a Uu interface or a backhaul interface via at least one of the following: a broadcast message, a system information block message, a dedicated radio resource control message, an F1 interface message, or an Xn interface message.

[0164] Aspect 21: The method according to any one of aspects 14 to 20, wherein the first RO set is associated with a first timing advance granularity, and the second RO set is associated with a second timing advance granularity different from the first timing advance granularity.

[0165] Aspect 22: A method according to any one of Aspects 14 to 21, wherein the RACH message 3 (msg3) associated with the first RO set is associated with a first subcarrier spacing (SCS) value, and the RACHmsg3 associated with the second RO set is associated with a second SCS value different from the first SCS value.

[0166] Aspect 23: The method according to Aspect 22 also includes: receiving an indication of the first SCS value or the second SCS value via at least one of the following: a system information block message, a dedicated radio resource control message, a RACH message 2 (msg2), or a grant of resources for the RACH msg3.

[0167] Aspect 24: A method according to any one of Aspects 14 to 23, wherein the RACH message 3 (msg3) associated with the first RO set is configured with an extended cyclic prefix, and the RACH message 3 (msg3) associated with the second RO set is not configured with an extended cyclic prefix.

[0168] Aspect 25: The method according to any one of aspects 14 to 24, further comprising: receiving information identifying a mode for the plurality of RO sets.

[0169] Aspect 26: The method according to any one of Aspects 14 to 25 further includes: receiving information indicating a RACH response (RAR) window or backoff indicator for RACH retransmission for the first RO set, wherein the RAR window or the backoff indicator is different from the RAR window or backoff indicator for the second RO set.

[0170] Aspect 27: 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 a method according to one or more of Aspects 1-13.

[0171] Aspect 28: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of aspects 1-13.

[0172] Aspect 29: An apparatus for wireless communication, comprising at least one unit for performing one or more of the methods of aspects 1-13.

[0173] Aspect 30: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-13.

[0174] Aspect 31: 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 of aspects 1-13.

[0175] Aspect 32: 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 a method according to one or more of Aspects 14-26.

[0176] Aspect 33: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of aspects 14-26.

[0177] Aspect 34: An apparatus for wireless communication, comprising at least one unit for performing the method of one or more of aspects 14-26.

[0178] Aspect 35: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 14-26.

[0179] Aspect 36: 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 of aspects 14-26.

[0180] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0181] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. "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 in execution, processes and / or functions, etc., regardless of whether they are referred to as software, firmware, middleware, microcode, hardware description languages ​​or other. As used herein, a "processor" is implemented with a combination of hardware and / or hardware and software. It will be apparent that the system and / or method described herein can be implemented with a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code for implementing these systems and / or methods is not limited to these aspects. Therefore, the operation and behavior of the system and / or method are described herein without citing a specific software code, 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.

[0182] 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.

[0183] Even if the specific combination of features is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many features in these features can be combined in a manner not specifically recorded in the claims and / or specifically disclosed in the specification. The disclosure of various aspects includes the combination of each dependent claim and each other claim in the claim set. As used herein, the phrase "at least one of" the project list refers to any combination of these projects, including a single member. For 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 of the same elements in multiples (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).

[0184] Any element, action or instruction used herein should not be interpreted as critical or necessary, unless clearly described as such. In addition, as used herein, the article "a" and "an" are intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items mentioned in combination with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the term "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If only want to refer to an entry, phrase "only one" or similar terms will be used. In addition, as used herein, the term "has", "have", "having" etc. are intended to be open terms, which do not limit the elements they modify (for example, "having" A elements can also have B). Further, the phrase "based on" is intended to mean "based on at least in part", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a series is intended to be inclusive and may be used interchangeably with "and / or" unless expressly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A network node for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, configured to: transmitting configuration information associated with identifying a plurality of random access channel (RACH) opportunities (RO) sets, wherein a first RO set of the plurality of RO sets is associated with a first set of parameters for a low resolution analog-to-digital converter (ADC) and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second set of parameters for a high resolution ADC and a second mode of the network node, wherein less energy is consumed in the first mode than in the second mode; and When operating in a specific mode of the first mode or the second mode of the network node, communicating is performed using a specific RO set of the plurality of RO sets associated with the specific mode of the network node.

2. The network node according to claim 1, wherein: The specific mode is the first mode, and the specific RO set is the first RO set.

3. The network node according to claim 1, wherein: The specific mode is the second mode, and the specific RO set is the second RO set.

4. The network node according to claim 1, wherein: The first set of parameters differs from the second set of parameters with respect to at least one of: Target received power, Sync signal block reference signal receiving power threshold, Preamble format, or Subcarrier spacing.

5. The network node according to claim 1, wherein: The one or more processors are further configured to: An indication is sent of which RO set of the plurality of RO sets corresponds to the first RO set and the low resolution ADC.

6. The network node according to claim 5, wherein: The indication is transmitted on a Uu interface or a backhaul interface via at least one of the following: Broadcast messages, System Information Block messages, Dedicated Radio Resource Control messages, F1 interface message, or Xn interface message.

7. The network node according to claim 1, wherein: The first set of ROs is associated with a first timing advance granularity, and the second set of ROs is associated with a second timing advance granularity different from the first timing advance granularity.

8. The network node according to claim 1, wherein: The RACH message 3msg3 associated with the first RO set is associated with a first subcarrier spacing SCS value, and the RACH msg3 associated with the second RO set is associated with a second SCS value different from the first SCS value.

9. The network node according to claim 8, wherein: The one or more processors are further configured to: The indication of the first SCS value or the second SCS value is sent using at least one of: System Information Block messages, Dedicated Radio Resource Control messages, RACH message 2msg2, or Grant of resources for the RACH msg3.

10. The network node according to claim 1, wherein: The RACH message 3msg3 associated with the first RO set is configured with an extended cyclic prefix, and the RACH message 3msg3 associated with the second RO set is not configured with an extended cyclic prefix.

11. The network node according to claim 1, wherein: The one or more processors are further configured to: Information identifying a mode for the plurality of RO sets is transmitted.

12. The network node according to claim 1, wherein: The one or more processors are further configured to: Information indicating a RACH response RAR window or a backoff indicator for RACH retransmission of the first RO set is transmitted, wherein the RAR window or the backoff indicator is different from the RAR window or the backoff indicator for the second RO set.

13. A network node for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, configured to: receiving configuration information identifying a plurality of random access channel (RACH) opportunity (RO) sets from other network nodes, wherein a first RO set of the plurality of RO sets is associated with a first set of parameters for a first mode of a low resolution analog-to-digital converter (ADC) and the other network nodes, and a second RO set of the plurality of RO sets is associated with a second set of parameters for a second mode of a high resolution ADC and the other network nodes, wherein less energy is consumed in the first mode than in the second mode; and When based at least in part on a timing corresponding to a specific pattern in the first pattern or the second pattern, communicating using a specific RO set associated with the specific pattern among the plurality of RO sets.

14. The network node according to claim 13, wherein: The specific mode is the first mode, and the specific RO set is the first RO set.

15. The network node according to claim 13, wherein: The specific mode is the second mode, and the specific RO set is the second RO set.

16. The network node according to claim 13, wherein: The first set of parameters differs from the second set of parameters with respect to at least one of: Target received power, Sync signal block reference signal receiving power threshold, Preamble format, or Subcarrier spacing.

17. The network node according to claim 13, wherein: The one or more processors are further configured to: An indication is received of which RO set of the plurality of RO sets corresponds to the first RO set and the low-resolution ADC.

18. The network node according to claim 17, wherein: The indication is transmitted on a Uu interface or a backhaul interface via at least one of the following: Broadcast messages, System Information Block messages, Dedicated Radio Resource Control messages, F1 interface message, or Xn interface message.

19. The network node according to claim 13, wherein: The first set of ROs is associated with a first timing advance granularity, and the second set of ROs is associated with a second timing advance granularity different from the first timing advance granularity.

20. The network node according to claim 13, wherein: The RACH message 3msg3 associated with the first RO set is associated with a first subcarrier spacing SCS value, and the RACH msg3 associated with the second RO set is associated with a second SCS value different from the first SCS value.

21. The network node according to claim 20, wherein: The one or more processors are further configured to: Receiving an indication of the first SCS value or the second SCS value via at least one of: System Information Block messages, Dedicated Radio Resource Control messages, RACH message 2msg2, or Grant of resources for the RACH msg3.

22. The network node according to claim 13, wherein: The RACH message 3msg3 associated with the first RO set is configured with an extended cyclic prefix, and the RACH message 3msg3 associated with the second RO set is not configured with an extended cyclic prefix.

23. The network node according to claim 13, wherein: The one or more processors are further configured to: Information identifying a mode for the plurality of RO sets is received.

24. The network node according to claim 13, wherein: The one or more processors are further configured to: Information indicating a RACH response RAR window or a backoff indicator for RACH retransmissions of the first RO set is received, wherein the RAR window or the backoff indicator is different from the RAR window or the backoff indicator for the second RO set.

25. A method of wireless communication performed by a network node, comprising: transmitting configuration information associated with identifying a plurality of random access channel (RACH) opportunities (RO) sets, wherein a first RO set of the plurality of RO sets is associated with a first set of parameters for a low resolution analog-to-digital converter (ADC) and a first mode of the network node, and a second RO set of the plurality of RO sets is associated with a second set of parameters for a high resolution ADC and a second mode of the network node, wherein less energy is consumed in the first mode than in the second mode; and When operating in a specific mode of the first mode or the second mode of the network node, communicating is performed using a specific RO set of the plurality of RO sets associated with the specific mode of the network node.

26. The method according to claim 25, wherein: The first set of parameters differs from the second set of parameters with respect to at least one of: Target received power, Sync signal block reference signal receiving power threshold, Preamble format, or Subcarrier spacing.

27. A method of wireless communication performed by a network node, comprising: receiving configuration information identifying a plurality of random access channel (RACH) opportunity (RO) sets from other network nodes, wherein a first RO set of the plurality of RO sets is associated with a first set of parameters for a first mode of a low resolution analog-to-digital converter (ADC) and the other network nodes, and a second RO set of the plurality of RO sets is associated with a second set of parameters for a second mode of a high resolution ADC and the other network nodes, wherein less energy is consumed in the first mode than in the second mode; and When based at least in part on a timing corresponding to a specific pattern in the first pattern or the second pattern, communicating using a specific RO set associated with the specific pattern among the plurality of RO sets.

28. The method according to claim 27, wherein: The first set of parameters differs from the second set of parameters with respect to at least one of: Target received power, Sync signal block reference signal receiving power threshold, Preamble format, or Subcarrier spacing.

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