Non-cell-defined synchronization signal bursts for idle mode
By realizing the reception and transmission of NCD-SSB in the wireless communication system, using system information and initial BWP configuration, the problem of inefficient communication in idle mode is solved, and more efficient communication and reduced latency is achieved.
Patent Information
- Application Number
- CN202280099477.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-03
- Publication Date
- 2025-04-11
AI Technical Summary
It is difficult for existing wireless communication systems to effectively utilize non-cell-defined synchronization signal bursts (NCD-SSBs) in idle mode, resulting in low communication efficiency and increased latency.
By realizing the reception and transmission of NCD-SSB between the user equipment (UE) and the network node, the parameters of the NCD-SSB are determined using the configuration of the system information and the initial bandwidth part (BWP), and the relevant procedures are then executed in idle mode.
The communication efficiency and response speed of the wireless communication system in idle mode are improved, the dependence on the RRC connection mode is reduced, and the delay and delay are reduced.
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Figure CN119817068A_ABST
Abstract
Description
Technical Field
[0001] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for utilizing non-cell defined synchronization signal bursts for idle mode. Background Art
[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0003] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).
[0004] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a 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 improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention
[0005] Some aspects described herein relate to a method of performing wireless communications by a user equipment (UE). The method may include receiving a cell definition (CD) synchronization signal burst (SSB). The method may include obtaining a location of an initial bandwidth part (BWP) specific to a UE with reduced capabilities based at least in part on system information. The method may include obtaining one or more parameters of a non-CD (NCD) SSB based at least in part on a configuration of the initial BWP. The method may include receiving an NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0006] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending a CD-SSB. The method may include determining one or more parameters for an NCD-SSB based at least in part on a configuration of an initial BWP specific to a UE with reduced capabilities. The method may include sending the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0007] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a CD-SSB. The method may include obtaining a location of a NCD-SSB based at least in part on a mapping associated with a system information block (SIB). The method may include receiving the NCD-SSB at the location.
[0008]
[0013] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending a CD-SSB. The method may include sending an NCD-SSB at a location based at least in part on a mapping associated with a SIB in the CD-SSB.
[0009] Some aspects described herein relate to a UE for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a CD-SSB. The one or more processors may be configured to obtain a location of an initial BWP specific to the UE with reduced capabilities based at least in part on system information. The one or more processors may be configured to obtain one or more parameters of an NCD-SSB based at least in part on a configuration of the initial BWP. The one or more processors may be configured to receive the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[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 send a CD-SSB. The one or more processors may be configured to determine one or more parameters of an NCD-SSB based at least in part on a configuration of an initial BWP specific to a UE with reduced capabilities. The one or more processors may be configured to send the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0011] Some aspects described herein relate to a UE for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a CD-SSB. The one or more processors may be configured to obtain a location of an NCD-SSB based at least in part on a mapping associated with an SIB. The one or more processors may be configured to receive the NCD-SSB at the location.
[0012] 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 a CD-SSB. The one or more processors may be configured to send an NCD-SSB at a location based at least in part on a mapping associated with a SIB in the CD-SSB.
[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive a CD-SSB. The instruction set, when executed by one or more processors of the UE, may cause the UE to obtain a location of an initial BWP specific to a UE with reduced capabilities based at least in part on system information. The instruction set, when executed by one or more processors of the UE, may cause the UE to obtain one or more parameters of an NCD-SSB based at least in part on the configuration of the initial BWP. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive an NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0014] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send a CD-SSB. The instruction set, when executed by one or more processors of the network node, may cause the network node to determine one or more parameters of an NCD-SSB based at least in part on a configuration of an initial BWP specific to a UE with reduced capabilities. The instruction set, when executed by one or more processors of the network node, may cause the network node to send the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0015] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive a CD-SSB. The instruction set, when executed by one or more processors of the UE, may cause the UE to obtain a location of an NCD-SSB based at least in part on a mapping associated with an SIB. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive the NCD-SSB at the location.
[0016] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send a CD-SSB. The instruction set, when executed by one or more processors of the network node, may cause the network node to send an NCD-SSB at a location based at least in part on a mapping associated with a SIB in the CD-SSB.
[0017] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving a CD-SSB. The apparatus may include components for obtaining a location of an initial BWP specific to a UE with reduced capabilities based at least in part on system information. The apparatus may include components for obtaining one or more parameters of an NCD-SSB based at least in part on a configuration of the initial BWP. The apparatus may include components for receiving the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0018] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a CD-SSB. The apparatus may include means for determining one or more parameters for an NCD-SSB based at least in part on a configuration of an initial BWP specific to a UE with reduced capabilities. The apparatus may include means for sending the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0019] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a CD-SSB. The apparatus may include means for obtaining a location of an NCD-SSB based at least in part on a mapping associated with a SIB. The apparatus may include means for receiving the NCD-SSB at the location.
[0020]
[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a CD-SSB. The apparatus may include means for sending an NCD-SSB at a location based at least in part on a mapping associated with a SIB in the CD-SSB.
[0021] The various aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.
[0022] The features and technical advantages of examples according to the present disclosure have been outlined quite broadly above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.
[0023] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment, and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements, and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0025] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0026] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.
[0027] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.
[0028] Figure 4 is a diagram illustrating an example of a synchronization signal (SS) hierarchy according to the present disclosure.
[0029] Figure 5 is a diagram illustrating an example associated with performing an idle mode procedure based on a non-cell defined SS burst (NCD-SSB) according to the present disclosure.
[0030] Figure 6 is a diagram illustrating an example associated with cell reselection according to the present disclosure.
[0031] Figure 7 is a diagram illustrating an example associated with performing an idle mode procedure based on NCD-SSB according to the present disclosure.
[0032] Figure 8 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0033] Fig. 9 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.
[0034] Fig.10 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0035] Fig.11 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.
[0036] Fig.12 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0037] Fig.13 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0038] 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 interpreted as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functions, or structures and functions in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.
[0039] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0040] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RATs (e.g., 6G).
[0041] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, as well as other examples. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). For another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).
[0042] In some examples, the network node 110 is or includes a network node (such as an RU) that communicates with the UE 120 via a radio access link. In some examples, the network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, the network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. The network node 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul, midhaul, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.
[0043] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 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., a radius of several kilometers) 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 home) 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 network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).
[0044] In some aspects, the term "base station" or "network node" may refer to a converged base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with the network node 110). In some aspects, the term "base station" or "network node" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.
[0045] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communication between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.
[0046] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).
[0047] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.
[0048] UE 120 can be distributed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, an access terminal, a terminal, a mobile station and / or a subscriber unit. UE 120 can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node and / or any other suitable device configured to communicate via a wireless or wired medium.
[0049] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, 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 a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operationally coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0050] For different capabilities, the UE may be of different categories. For example, a network node may serve a first category of UEs with less advanced capabilities (e.g., lower capabilities and / or reduced capabilities) and a second category of UEs with higher capabilities (e.g., higher capabilities). Compared to the second category of UEs, the first category of UEs may have a reduced feature set and may be referred to as reduced capability (RedCap) UEs, low-end UEs, NR-Light UEs, and / or NR light UEs, etc. The first category of UEs may be, for example, industrial wireless sensors, low-end smartphones, health monitors, video surveillance, high-end wearable devices, MTC devices, and / or high-end logical trackers.
[0051] The second category of UEs may have an advanced feature set compared to the first category of UEs and may be referred to as baseline UEs, high-end UEs, NR UEs, and / or advanced UEs, etc. The second category of UEs may include enhanced mobile broadband (eMBB) devices, ultra-reliable low-latency communications (URLLC) devices, extended reality (XR) devices, laptops, robots, industrial machines, and / or high-end smartphones. The first category of UEs may support a lower maximum modulation and coding scheme (MCS) than the second category of UEs (e.g., quadrature phase shift keying (QPSK) compared to 256 quadrature amplitude modulation (QAM), etc.), may support a lower maximum transmit power than the second category of UEs, may have less advanced beamforming capabilities than the second category of UEs (e.g., may not be able to form as many beams as the second category of UEs), may require longer processing time than the second category of UEs, may include less hardware than the second category of UEs (e.g., fewer antennas, fewer transmit antennas, and / or fewer receive antennas), and / or may not be able to communicate on a maximum bandwidth portion as wide as the second category of UEs, etc. Additionally or alternatively, the second category of UEs may be able to communicate using a shortened transmit time interval (TTI) (e.g., a time slot length of 1 ms or less, 0.5 ms, 0.25 ms, 0.125 ms, 0.0625 ms, etc., depending on the subcarrier spacing), and the first category of UEs may not be able to communicate using a shortened TTI.
[0052] There may be a third category of devices, which may be referred to as enhanced RedCap (eRedCap) devices or NR ultra-light devices. Such devices may include eMTC devices and / or NB-IoT devices associated with 3GPP Release 18 and / or massive IoT. The third category of UEs may include, for example, low-end industrial sensors, parking sensors, agricultural sensors, utility meters, low-end wearable devices, and / or low-end asset trackers. Just as the first category of UE capabilities are different from the second category of UE capabilities. The third category of UE capabilities may be different from the first and second category of UE capabilities.
[0053] 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, air interface, etc. Frequency may be referred to as a carrier, 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.
[0054] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network node 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.
[0055] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. Similar naming issues sometimes occur with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).
[0056] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and thus the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz–71GHz), FR4 (52.6GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.
[0057] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term can be broadly referred to as 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 if the term "millimeter wave" or the like is used herein, the term can be broadly referred to as frequencies that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0058] In some aspects, UE 120 may include a communications manager 140. As described in greater detail elsewhere herein, communications manager 140 may receive a CD-SSB and obtain a location of an initial bandwidth part (BWP) specific to the UE with reduced capabilities based at least in part on the system information. Communications manager 140 may obtain one or more parameters for an NCD-SSB based at least in part on a configuration of the initial BWP. Communications manager 140 may receive the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0059] In some aspects, the communication manager 140 may receive the CD-SSB and obtain the location of the NCD-SSB based at least in part on a mapping associated with a system information block (SIB). The communication manager 140 may receive the NCD-SSB at the location. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0060] In some aspects, a network node (e.g., network node 110) may include a communications manager 150. As described in greater detail elsewhere herein, the communications manager 150 may send a CD-SSB and determine one or more parameters for an NCD-SSB based at least in part on a configuration of an initial BWP specific to the UE with reduced capabilities. The communications manager 150 may send the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0061] In some aspects, the communications manager 150 may send a CD-SSB and send an NCD-SSB at a location based at least in part on a mapping associated with the SIBs in the CD-SSB. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.
[0062] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1The examples described are different.
[0063] Figure 2 2 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.
[0064] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more MCSs for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-decoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a set of corresponding antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).
[0065] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 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 use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.
[0066] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.
[0067] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more groups of antenna elements, and / or one or more antenna arrays, etc. An antenna panel, an antenna group, a group of antenna elements, and / or an antenna array may include one or more antenna elements (in a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components).
[0068] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, with reference to Figures 4 to 13 ) any aspects of any of the methods described herein.
[0069] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 4 to 13 ) any aspects of any of the methods described herein.
[0070] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the network node 110 may perform one or more techniques associated with using NCD-SSB in idle mode, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 8 The process of 800 Fig. 9 The process of 900 Fig.10 The process of 1000 Fig.11 1100 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 8 The process of 800 Fig. 9 The process of 900 Fig.10 The process of 1000 Fig.11 The process 1100 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.
[0071] In some aspects, the UE 120 includes: means for receiving a CD-SSB; means for obtaining a location of an initial BWP specific to the UE with reduced capabilities based at least in part on the system information; means for obtaining one or more parameters of an NCD-SSB based at least in part on the configuration of the initial BWP; and / or means for receiving the NCD-SSB in the initial BWP based at least in part on the one or more parameters. Means for the UE 120 to perform operations described herein may include, for example, one or more of the communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0072] In some aspects, a network node (e.g., network node 110) includes means for sending a CD-SSB; means for determining one or more parameters of an NCD-SSB based at least in part on a configuration of an initial BWP specific to a UE with reduced capabilities; and / or means for sending the NCD-SSB in the initial BWP based at least in part on the one or more parameters. In some aspects, means for a network node to perform operations described herein may include, for example, one or more of a communication manager 150, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.
[0073] In some aspects, the UE 120 includes: means for receiving a CD-SSB; means for obtaining a location of a NCD-SSB based at least in part on a mapping associated with the SIB; and / or means for receiving the NCD-SSB at the location.
[0074] In some aspects, the network node includes: means for sending a CD-SSB; and / or means for sending a NCD-SSB at a location based at least in part on a mapping associated with a SIB in the CD-SSB.
[0075] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0076] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.
[0077] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also called an independent base station or a monolithic base station) or a decomposed base station. A "network entity" or a "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).
[0078] An aggregated base station (e.g., an aggregated network node) can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) can be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU can be implemented within a network node, and one or more DUs can be co-located with the CU, or alternatively, can be geographically or virtually distributed across one or more other network nodes. The DU can be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.
[0079] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.
[0080] Figure 33 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units, such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.
[0081] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces, the one or more interfaces being configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, the wireless interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, or both.
[0082] In some aspects, the CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, the CU 310 may be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU 310 may be implemented to communicate with the DU 330 for network control and signaling.
[0083] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional partition such as that defined by 3GPP. In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, or physical random access channel (PRACH) extraction and filtering. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.
[0084] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering based on functional splitting (e.g., functional splitting defined by 3GPP) (such as lower layer functional splitting). In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of control plane communications and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).
[0085] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RTRIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.
[0086] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or in communication with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.
[0087] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).
[0088] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.
[0089] Figure 4 4 is a diagram illustrating an example 400 of an SS hierarchy according to the present disclosure. Figure 4As shown, the SS hierarchy may include an SS burst set 405, which may include multiple SS bursts 410 (shown as SS Burst 0 through SS Burst N-1, where N is the maximum number of repetitions of the SS burst 410 that may be sent by one or more network nodes). As further shown, each SS burst 410 may include one or more SSBs 415 (shown as SSB 0 through SSB M-1, where M is the maximum number of SSBs 415 that may be carried by the SS burst 410). In some aspects, different SSBs 415 may be beamformed in different manners (e.g., transmitted using different beams) and may be used for cell search, cell acquisition, beam management, and / or beam selection (e.g., as part of an initial network access procedure). The SS burst set 405 may be sent by a wireless node (e.g., network node 110) periodically (such as every X milliseconds), such as Figure 4 In some aspects, SS burst set 405 may have a fixed or dynamic length (which may be Figure 4 In some cases, the SS burst set 405 or SS burst 410 may be referred to as a discovery reference signal (DRS) transmission window or an SSB measurement time configuration (SMTC) window.
[0090] In some aspects, the SSB 415 may include resources that carry the PSS 420, the SSS 425, and / or the physical broadcast channel (PBCH) 430. In some aspects, multiple SSBs 415 are included in the SS burst 410 (e.g., utilizing transmissions on different beams), and the PSS 420, SSS 425, and / or PBCH 430 may be the same across each SSB 415 of the SS burst 410. In some aspects, a single SSB 415 may be included in the SS burst 410. In some aspects, the SSB 415 may be at least four symbols (e.g., OFDM symbols) in length, with each symbol carrying one or more of the PSS 420 (e.g., occupying one symbol), the SSS 425 (e.g., occupying one symbol), and / or the PBCH 430 (e.g., occupying two symbols). In some aspects, the SSB 415 may be referred to as an SS / PBCH block.
[0091] In some aspects, the symbols of SSB 415 are consecutive, such as Figure 4 . In some aspects, the symbols of the SSB 415 are non-contiguous. Similarly, in some aspects, one or more SSBs 415 of the SS burst 410 may be sent in contiguous radio resources (e.g., consecutive symbols) during one or more time slots. Additionally or alternatively, one or more SSBs 415 of the SS burst 410 may be sent in non-contiguous radio resources.
[0092] In some aspects, the SS burst 410 may have a burst periodicity, and the SSB 415 of the SS burst 410 may be sent by a wireless node (e.g., network node 110) according to the burst periodicity. In this case, the SSB 415 may repeat during each SS burst 410. In some aspects, the SS burst set 405 may have a burst set periodicity, whereby the SS bursts 410 in the SS burst set 405 are sent by the wireless node according to a fixed burst set periodicity. In other words, the SS burst 410 may repeat during each SS burst set 405.
[0093] In some aspects, the SSB 415 may include an SSB index, which may correspond to a beam for carrying the SSB 415. The UE 120 may monitor and / or measure the SSB 415 using different receive (Rx) beams during an initial network access procedure and / or a cell search procedure, among other examples. Based at least in part on the monitoring and / or measurement, the UE 120 may indicate one or more SSBs 415 having the best signal parameters (e.g., RSRP parameters) to the network node 110 (e.g., directly or via one or more other network nodes). The network node 110 and the UE 120 may use the indicated one or more SSBs 415 to select one or more beams to be used for communication between the network node 110 and the UE 120 (e.g., for a random access channel (RACH) procedure). Additionally or alternatively, the UE 120 may use the SSB 415 and / or the SSB index to determine a cell timing for a cell (e.g., a serving cell) via which the SSB 415 is received.
[0094] The SSB may be cell defined, or CD-SSB. The network node may send the CD-SSB during the RRC connected mode of the UE. The location of the CD-SSB may be defined in the specification and may be found in the synchronization raster of the reference signal. The UE may find the CD-SSB using the synchronization raster. The CD-SSB may define system information for the serving cell, and the UE may use the CD-SSB to obtain the system information.
[0095] RedCap UEs, such as in 3GPP Release 17, have a narrower bandwidth and may have a different location in the carrier to avoid congestion. The network node may send a CD-SSB to provide system information of the serving cell, but if the RedCap UE is within the narrower bandwidth configured around the CD-SSB, there may be congestion if there are many RedCap UEs. The bandwidth of the RedCap UE may be configured away from the CD-SSB location to avoid congestion, but then the RedCap UE is outside the CD-SSB. The UE needs the CD-SSB for reference signal (RS) measurements.
[0096] The network node may configure NCD-SSB. NCD-SSB may be applicable to UEs with reduced capabilities or RedCap UEs. The network node may configure NCD-SSB in a dedicated BWP of a RedCap UE instead of CD-SSB. NCD-SSB may include the attributes of CD-SSB and may be used in procedures that traditionally use CD-SSB. These procedures may include radio resource management (RRM) measurements, radio link management (RLM) procedures, beam failure recovery (BFR) procedures, interference management (IM) procedures, or RACH procedures. However, the use of NCD-SSB is limited to RedCap UEs that are in RRC connected mode rather than RRC idle mode. RRC connected mode may include a mode that allows full communication capabilities. RRC idle mode may mean that a connection needs to be established or re-established to obtain full communication capabilities. A RedCap UE in idle mode cannot use NCD-SSB for such procedures or determine which SSB to use. NCD-SSB is not on the synchronization raster specified and indicated in the stored configuration information.
[0097] In addition, in some examples, a RedCap UE may be configured with a separate initial BWP, where the UE may perform paging monitoring and / or RACH procedures. The RedCap-specific initial downlink BWP cannot contain an NCD-SSB. If the initial BWP is used for paging monitoring, the initial BWP must contain the CD-SSB of the serving cell. This limits the network's flexibility in configuring the location of the RedCap-specific initial BWP. If the initial BWP is used for RACH procedures, the initial BWP may or may not contain any type of SSB. In such examples, the UE may be expected to use the CD-SSB contained in the default initial BWP. This increases the latency of the RACH procedure.
[0098] According to various aspects described herein, in addition to RRC connected mode, the UE may use NCD-SSB in RRC idle mode. The UE may be aware of the location of the NCD-SSB in the initial downlink BWP. The UE may be a RedCap UE and may be configured with a RedCap-specific initial downlink BWP. The network node may specify parameters for the NCD-SSB in an information element (IE) configured for a RedCap-specific initial downlink BWP. These parameters may include time and frequency resource locations (e.g., absolute radio frequency channel numbers (ARFCNs)), transmit power of the NCD-SSB, periodicity of the NCD-SSB, and / or a timing offset of the NCD-SSB relative to the CD-SSB of the cell. The initial downlink BWP may contain at most one SSB, either a CD-SSB or an NCD-SSB.
[0099] If a RedCap-specific initial downlink BWP is configured with a paging search space, the UE may expect the BWP to be configured with at least one SSB of either type, i.e., a CD-SSB or an NCD-SSB. In some aspects, the UE may perform an idle mode procedure based at least in part on the NCD-SSB. The idle mode procedure may include monitoring paging in a paging search space in the initial BWP shared by the NCD-SSB. The paging search space and the NCD-SSB may be in the same initial BWP so that the UE may measure the NCD-SSB in the same BWP to synchronize with the system and then monitor for paging. In some aspects, the idle mode procedure may include performing RRM measurements based on the NCD-SSB instead of the CD-SSB.
[0100] If a RedCap-specific initial downlink BWP is configured with a random access response (RAR) search space, the UE may expect the BWP to be configured with at least one SSB of either type, i.e., a CD-SSB or an NCD-SSB. In some aspects, the idle mode procedure may include selecting a beam for the RACH based on the signal strength of the NCD-SSB. For example, the UE may measure the signal strength (e.g., RSRP) of the NCD-SSB and then use the signal strength to select a suitable beam for the RACH procedure. This may include selecting the beam with the strongest RSRP. The UE may indicate to the network node which beam the UE prefers to use via a RACH opportunity associated with the selected beam. The network node may pre-configure the mapping between the RACH opportunities and the transmitted SSBs.
[0101] By using NCD-SSB in idle mode, the UE may be able to obtain system information and perform idle mode procedures, or procedures that were previously unavailable during idle mode using CD-SSB or NCD-SSB. In this way, the UE can reduce latency by not waiting until RRC connected mode to perform procedures, thereby improving communications.
[0102] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.
[0103] Figure 5 is a diagram illustrating an example 500 associated with performing idle mode procedures based on NCD-SSB according to the present disclosure. Figure 5 As shown, a network node 510 (eg, network node 110) and a UE 520 (eg, UE 120) may communicate with each other via a wireless network (eg, wireless network 100).
[0104] As shown by reference numeral 525, the network node 510 may send a CD-SSB. The UE 520 may use a synchronization grating to locate the CD-SSB for the frequency band. The UE 520 may obtain system information from the CD-SSB. The system information may be included in a SIB or a master information block (MIB) associated with the CD-SSB. As shown by reference numeral 530, the UE 520 may obtain the location of the RedCap-specific initial BWP based at least in part on the system information. As shown by reference numeral 535, the network node 510 may determine one or more parameters of the NCD-SSB based at least in part on the configuration of the RedCap-specific initial BWP. As shown by reference numeral 540, the UE 520 may obtain one or more parameters of the NCD-SSB based at least in part on the configuration of the initial BWP. The UE 520 may receive the configuration of the initial BWP in the system information.
[0105] The UE 520 may enter an idle mode (e.g., an RRC idle mode). As shown by reference numeral 545, the network node 510 may send an NCD-SSB. The UE 520 may receive the NCD-SSB in an initial BWP based at least in part on the one or more parameters. The one or more parameters may include a timing offset of the NCD-SSB relative to the CD-SSB and / or a time and frequency location of the NCD-SSB. The one or more parameters may include a transmit power or a transmit power value for the NCD-SSB.
[0106] As shown by reference numeral 550, UE 520 may perform an idle mode procedure. The idle mode procedure may include monitoring a paging search space in an initial BWP shared by an NCD-SSB. The initial BWP may be configured with a RAR. The idle mode procedure may include selecting a beam for a RACH procedure based on a signal strength (e.g., RSRP) of the NCD-SSB. The idle mode procedure may include performing RRM measurements based on the NCD-SSB.
[0107] By using NCD-SSB for RRC idle mode procedures, UE 520 may improve communications that previously relied on CD-SSB or NCD-SSB during RRC connected mode.
[0108] As indicated above, Figure 5 are provided as examples. Other examples can be found in relation to Figure 5 Described differently.
[0109] Figure 6 is a diagram illustrating an example 600 associated with cell reselection according to the present disclosure.
[0110] In existing networks, neighbor cell measurements are performed on CD-SSB. Intra-frequency and inter-frequency neighbor cells are announced in SIB3 and SIB4, respectively. In some aspects, the UE can improve communication and reduce latency by performing neighbor cell measurements on NCD-SSB (if configured) instead of CD-SSB. For example, the serving cell of a RedCap UE may be configured with NCD-SSB in the RedCap-specific initial BWP. Therefore, the RedCap UE may perform serving cell measurements on NCD-SSB. If neighbor cell #1 has the same configuration, as shown in example 600, the RedCap UE is expected to perform intra-frequency measurements on NCD-SSB#1 of neighbor cell #1 instead of CD-SSB. Intra-frequency measurements involve measurements when the SSBs are on the same frequency. If the NCD-SSB of neighbor cell #2 is on a frequency different from the CD-SSB and NCD-SSB#1, the UE may perform inter-frequency measurements on any SSB of neighbor cell #2.
[0111] When NCD-SSB is configured, non-RedCap UEs and RedCap UEs may have different intra-frequency and inter-frequency measurement targets. For example 600, neighbor cell #1 and neighbor cell #2 are both intra-frequency neighbor cells for non-RedCap UEs. Whether neighbor cell measurements are based on NCD-SSB or CD-SSB depends on network configuration, such as configuration in SIB3 and SIB4.
[0112] In some aspects, a new IE may be introduced in SIB3 and / or SIB4 that indicates a mapping between a CD-SSB and a NCD-SSB. The mapping may indicate an offset (e.g., in frequency) between the frequency position of the CD-SSB and the frequency position of the NCD-SSB. The mapping may indicate an offset (e.g., in frequency) between a starting offset of the CD-SSB and a starting offset of the NCD-SSB. The mapping may indicate an offset (e.g., an amount of power) between the transmit power of the CD-SSB and the transmit power of the NCD-SSB. The mapping may indicate a scaling factor between the periodicity of the CD-SSB and the periodicity of the NCD-SSB. That is, the scaling factor may indicate that one periodicity is a multiple (integer or non-integer) of another periodicity.
[0113] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.
[0114] Figure 7 is a diagram illustrating an example 700 associated with performing idle mode procedures based on NCD-SSB according to the present disclosure.
[0115] Example 700 shows that a UE 520 (e.g., a RedCap UE) can use mapping information to locate an NCD-SSB from a CD-SSB. As shown by reference numeral 705, a network node 510 can send a CD-SSB. The UE 520 can perform a search on a synchronization raster to locate or identify a CD-SSB of a target cell (e.g., a serving cell, a neighboring cell). The UE 520 can obtain system information from a SIB (or MIB) associated with the CD-SSB.
[0116] As shown by reference numeral 710, the UE 520 may obtain the location of the NCD-SSB based at least in part on a mapping associated with the SIB. For example, the UE 520 may apply an offset signaled in an IE in SIB3 or SIB4 to derive time and frequency information for the NCD-SSB associated with the same cell, as well as other attributes such as transmit power and periodicity. The IE in SIB3 or SIB4 may be a new IE (not previously included in SIB 3 or SIB4) dedicated to use by RedCap UEs. SIB3 or SIB4 may be a signal separate from and based on the CD-SSB. The SIB may be sent only in an initial BWP that includes the CD-SSB, or the SIB may be used for RedCap UE capabilities that are sent separately in a RedCap-specific initial BWP. The mapping information used for mapping may be frequency specific.
[0117] In some aspects, the mapping information may be cell specific. For example, information about the NCD-SSB may be provided by a new IE under the intra-frequency cell information IE (e.g., IntraFreqNeighCellInfo IE) in SIB3 and the inter-frequency cell information IE (e.g., InterFreqCarrierFreqInfo IE) in SIB4. The information about the NCD-SSB may be an absolute value. Therefore, a RedCap UE may not need to find a CD-SSB to locate the NCD-SSB in a cell (although a CD-SSB may still be needed to locate the system information of the cell).
[0118] UE 520 may be in idle mode. As indicated by reference numeral 715, network node 510 may send an NCD-SSB. UE 520 may receive the NCD-SSB at this location. As indicated by reference numeral 720, UE 520 may perform idle mode procedures based at least in part on the NCD-SSB.
[0119] In some aspects, if NCD-SSB is configured for UE 520 (as a RedCap UE) in the IntraFreqNeighCellInfo IE in SIB3 and / or the InterFreqCarrierFreqInfo IE in SIB4, the UE 520 may perform corresponding neighbor cell measurements using the configured NCD-SSB, respectively. Otherwise, if there is no NCD-SSB parameter or configuration in the IntraFreqNeighCellInfo IE in SIB3 and / or the InterFreqCarrierFreqInfo IE in SIB4, the UE 520 may perform neighbor cell measurements in the same manner as a non-RedCap UE. The UE 520 may perform measurements on the CD-SSB. Information in one of these IEs (e.g., one or more parameters of the NCD-SSB) indicates that the UE 520 is to perform measurements on the NCD-SSB. These parameters may be frequency-specific or cell-specific. That is, the presence or absence of NCD-SSB in the IntraFreqNeighCellInfo IE in SIB3 and / or the InterFreqCarrierFreqInfo IE in SIB4 determines whether the UE 520 performs neighbor cell measurement using the NCD-SSB of the corresponding neighbor cell or the CD-SSB of the neighbor cell.
[0120] When the UE 520 is configured for NCD-SSB, this may affect whether the measurement of the NCD-SSB is intra-frequency or inter-frequency. In some aspects, the network node 510 may select a frequency for the NCD-SSB based at least in part on the selected classification (inter-frequency or intra-frequency) for the NCD-SSB measurement. The selected classification may be based on an IE including NCD-SSB parameters or NCD-SSB configuration. For example, if the SSB used in the serving cell measurement of a RedCap UE is on a different frequency than the SSB configured in the IntraFreqNeighCellInfo IE of the RedCap UE, the measurement on the corresponding neighboring cell may be classified as an inter-frequency measurement, although it is still an intra-frequency measurement for a non-RedCap UE in the same cell. If the SSB used in the serving cell measurement of a RedCap UE is on the same frequency as the SSB configured in the InterFreqNeighCellInfo IE of the RedCap UE, the measurement on the corresponding neighboring cell may be classified as an intra-frequency measurement, although it is still an inter-frequency measurement for a non-RedCap UE in the same cell.
[0121] In some aspects, in response to NCD-SSB configuration information for RedCap UEs being included in an IE for intra-frequency cell information in the SIB, the UE 520 may perform a first measurement based on the NCD-SSB (the NCD-SSB is of the serving cell) and a second measurement based on the NCD-SSB of the neighboring cell, wherein the frequency of the NCD-SSB of the serving cell and the frequency of the NCD-SSB of the neighboring cell are the same frequency.
[0122] In some aspects, in response to NCD-SSB configuration information for RedCap UEs being included in an IE for inter-frequency cell information in the SIB, UE 520 may perform a first measurement based on the NCD-SSB (the NCD-SSB is of the serving cell) and a second measurement based on the NCD-SSB of the neighboring cell, wherein the frequency of the NCD-SSB of the serving cell and the frequency of the NCD-SSB of the neighboring cell are different frequencies.
[0123] The frequency indicated in the SIB for NCD-SSB can be inter-frequency or intra-frequency. In existing networks, the cell reselection priority of the serving cell frequency is configured in SIB2, and the neighboring cell frequency is configured in SIB4. If NCD-SSB is configured, for RedCap UE, the intra-frequency in SIB3 can become inter-frequency and the inter-frequency in SIB4 can become intra-frequency. Therefore, the network node 510 can configure the cell selection priority for those frequencies separately from the cell selection priority for non-RedCap UE. In some aspects, if NCD-SSB for idle mode is configured, RedCap-specific cell reselection priorities can be introduced in, for example, IntraFreqNeighCellInfo IE in SIB2 and InterFreqCarrierFreqInfo IE in SIB4. If NCD-SSB is configured, the frequency in SIB2 can become inter-frequency, and the UE 520 can use the cell reselection priority under the cell reselection IE (e.g., cellReselectionPriority-NCD-SSB IE) instead of the existing IE in SIB4. If NCD-SSB is configured, the frequency in SIB4 may become intra-frequency, and the UE 520 may then use, for example, the cell reselection priority under the cellReselectionPriority-NCD-SSB IE in SIB4 instead of the existing IE in SIB2.
[0124] In some aspects, the UE 520 may perform cell reselection based at least in part on a cell reselection priority included in a RedCap-specific IE.The cell reselection priority may be included in an IE for intra-frequency cell information or in an IE for inter-frequency cell information.
[0125] As indicated above, Figure 7 are provided as examples. Other examples can be found in the Figure 7 The examples described are different.
[0126] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a UE according to the present disclosure. Example process 800 is an example of a UE (eg, UE 120, UE 520) performing operations associated with NCD-SSB in idle mode.
[0127] like Figure 8 As shown, in some aspects, process 800 may include receiving a CD-SSB (block 810). For example, a UE (e.g., using Fig.12 The communication manager 1208 and / or receiving component 1202 depicted in FIG. 1204 may receive a CD-SSB as described above.
[0128] like Figure 8 As further shown, in some aspects, process 800 may include obtaining a location of an initial BWP specific to the UE with reduced capabilities based at least in part on the system information (block 820). Fig.12 The communication manager 1208 and / or location component 1210 depicted in FIG. 12 may obtain a location of an initial BWP specific to the UE with reduced capabilities based at least in part on the system information, as described above.
[0129] like Figure 8 As further shown, in some aspects, process 800 may include obtaining one or more parameters of the NCD-SSB based at least in part on the configuration of the initial BWP (block 830). Fig.12 The communication manager 1208 and / or parameter component 1212 depicted in FIG. 10 may obtain one or more parameters of the NCD-SSB based at least in part on the configuration of the initial BWP, as described above.
[0130] like Figure 8 As further shown, in some aspects, process 800 may include receiving an NCD-SSB in an initial BWP based at least in part on the one or more parameters (block 840). Fig.12The communication manager 1208 and / or receiving component 1202 depicted in FIG. 1 may receive the NCD-SSB in an initial BWP based at least in part on the one or more parameters, as described above.
[0131] 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.
[0132] In a first aspect, the one or more parameters include a timing offset of the NCD-SSB relative to the CD-SSB.
[0133] In a second aspect, alone or in combination with the first aspect, the one or more parameters include a time and frequency location of the NCD-SSB.
[0134] In a third aspect, alone or in combination with one or more of the first and second aspects, the one or more parameters include a transmit power for NCD-SSB.
[0135] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the one or more parameters include a transmit power value.
[0136] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 800 includes performing an idle mode procedure based at least in part on an NCD-SSB.
[0137] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the idle mode procedure includes monitoring for pages in a paging search space in an initial BWP shared by an NCD-SSB.
[0138] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the initial BWP is configured with a RAR search space.
[0139] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the idle mode procedure includes selecting a beam for RACH procedure based on a signal strength of an NCD-SSB.
[0140] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the idle mode procedure includes performing RRM measurements based on NCD-SSB.
[0141] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8Additional 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 blocks of process 800 may be performed in parallel.
[0142] Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a network node in accordance with the present disclosure. Example process 900 is an example of a network node (eg, network node 110, network node 510) performing operations associated with NCD-SSB in idle mode.
[0143] like Fig. 9 As shown, in some aspects, process 900 may include sending a CD-SSB (block 910). For example, a network node (e.g., using Fig.13 The communication manager 1308 and / or the sending component 1304 depicted in the figure may send CD-SSB as described above.
[0144] like Fig. 9 As further shown, in some aspects, process 900 may include determining one or more parameters of the NCD-SSB based at least in part on a configuration of an initial BWP specific to the UE with reduced capabilities (block 920). Fig.13 The communication manager 1308 and / or parameter component 1310 depicted in FIG. 1 may determine one or more parameters for the NCD-SSB based at least in part on a configuration of an initial BWP specific to the UE with reduced capabilities, as described above.
[0145] like Fig. 9 As further shown, in some aspects, process 900 may include sending an NCD-SSB in an initial BWP based at least in part on the one or more parameters (block 930). Fig.13 The communication manager 1308 and / or the sending component 1304 depicted in FIG. 1 may send the NCD-SSB in the initial BWP based at least in part on the one or more parameters, as described above.
[0146] 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.
[0147] In a first aspect, the one or more parameters include one or more of a timing offset of the NCD-SSB relative to the CD-SSB, a time and frequency location of the NCD-SSB, a transmit power for the NCD-SSB, an initial BWP specific to a UE with reduced capabilities, or a transmit power value.
[0148] although Fig. 9An example block diagram of process 900 is shown, but in some aspects, process 900 may include Fig. 9 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 of the blocks in the process 900 may be performed in parallel.
[0149] Fig.10 1 is a diagram illustrating an example process 1000 performed, for example, by a UE according to the present disclosure. Example process 1000 is an example of a UE (eg, UE 120, UE 520) performing operations associated with NCD-SSB in idle mode.
[0150] like Fig.10 As shown, in some aspects, process 1000 may include receiving a CD-SSB (block 1010). For example, a UE (e.g., using Fig.13 The communication manager 1208 and / or receiving component 1202 depicted in FIG. 1204 may receive a CD-SSB as described above.
[0151] like Fig.10 As further shown, in some aspects, process 1000 may include obtaining a location of an NCD-SSB based at least in part on a mapping associated with the SIB (block 1020). Fig.13 The communication manager 1208 and / or location component 1210 depicted in FIG. 1 may obtain the location of the NCD-SSB based at least in part on a mapping associated with the SIB, as described above.
[0152] like Fig.10 As further shown, in some aspects, process 1000 may include receiving an NCD-SSB at the location (block 1030). For example, a UE (e.g., using Fig.13 The communication manager 1208 and / or receiving component 1202 depicted in FIG. 1204 may receive the NCD-SSB at this location, as described above.
[0153] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.
[0154] In a first aspect, the mapping indicates an offset between a frequency position of a CD-SSB and a frequency position of an NCD-SSB. In a second aspect, alone or in combination with the first aspect, the mapping indicates an offset between a starting offset of a CD-SSB and a starting offset of an NCD-SSB. In a third aspect, alone or in combination with one or more of the first and second aspects, the mapping indicates an offset between a transmit power of a CD-SSB and a transmit power of an NCD-SSB. In a fourth aspect, alone or in combination with one or more of the first to third aspects, the mapping indicates a scaling factor between a periodicity of a CD-SSB and a periodicity of an NCD-SSB.
[0155] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the mapping is included in a frequency-specific information element. In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the mapping is included in a cell-specific information element.
[0156] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 1000 includes performing a first measurement based on an NCD-SSB, which is of a serving cell; and performing a second measurement based on an NCD-SSB of a neighboring cell, wherein the frequency of the NCD-SSB of the serving cell is the same frequency as the frequency of the NCD-SSB of the neighboring cell.
[0157] In an eighth aspect, alone or in combination with one or more of aspects one to seven, process 1000 includes performing a first measurement based on an NCD-SSB, which is of a serving cell; and performing a second measurement based on an NCD-SSB of a neighboring cell, wherein the frequency of the NCD-SSB of the serving cell is a different frequency from the frequency of the NCD-SSB of the neighboring cell.
[0158] In a ninth aspect, either alone or in combination with one or more of aspects 1 to 8, the frequency indicated in the SIB for NCD-SSB is inter-frequency or intra-frequency, and process 1000 includes performing cell reselection based at least in part on a cell reselection priority included in an information element specific to UEs with reduced capabilities.
[0159] although Fig.10 An example block diagram of process 1000 is shown, but in some aspects, process 1000 may include Fig.10 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1000. Additionally or alternatively, two or more of the blocks in the process 1000 may be performed in parallel.
[0160] Fig.11 is a diagram illustrating an example process 1100, for example, performed by a network node, in accordance with the present disclosure. The example process 1100 is an example of a network node (eg, network node 110, network node 510) performing operations associated with NCD-SSB in idle mode.
[0161] like Fig.11 As shown, in some aspects, process 1100 may include sending a CD-SSB (block 1110). For example, a network node (e.g., using Fig.13 The communication manager 1308 and / or the sending component 1304 depicted in the figure may send CD-SSB as described above.
[0162] like Fig.11 As further shown, in some aspects, process 1100 may include sending the NCD-SSB at a location based at least in part on a mapping associated with the SIB in the CD-SSB (block 1120). Fig.13 The communication manager 1308 and / or the sending component 1304 depicted in FIG. 1 may send the NCD-SSB at a location based at least in part on a mapping associated with the SIB in the CD-SSB, as described above.
[0163] Process 1100 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.
[0164] In a first aspect, the mapping indicates one or more of an offset between a frequency position of a CD-SSB and a frequency position of an NCD-SSB, an offset between a starting offset of a CD-SSB and a starting offset of an NCD-SSB, an offset between a transmit power of a CD-SSB and a transmit power of an NCD-SSB, or a scaling factor between a periodicity of a CD-SSB and a periodicity of an NCD-SSB.
[0165] In a second aspect, alone or in combination with the first aspect, process 1100 includes sending one or more parameters of NCD-SSB in an IE for intra-frequency cell information in a SIB or in an IE for inter-frequency cell information in a SIB to indicate that the UE is to perform neighbor cell measurements on the NCD-SSB.
[0166] In a third aspect, alone or in combination with one or more of the first and second aspects, the mapping or the one or more parameters are frequency specific or cell specific.
[0167] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 1100 includes selecting a frequency for NCD-SSB based at least in part on a selected classification for NCD-SSB measurement.
[0168] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1100 includes sending in the SIB or another SIB a cell reselection priority specific to neighboring cells having NCD-SSB based measurements rather than CD-SSB based measurements.
[0169] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the cell reselection priority is included in an IE for intra-frequency cell information or in an IE for inter-frequency cell information. In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the process 1100 includes sending NCD-SSB configuration information for UEs with reduced capabilities in an IE for intra-frequency cell information or in an IE for inter-frequency cell information.
[0170] although Fig.11 An example block diagram of process 1100 is shown, but in some aspects, process 1100 may include Fig.11 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1100. Additionally or alternatively, two or more blocks of the blocks of process 1100 may be performed in parallel.
[0171] Fig.12 1 is a diagram of an example apparatus 1200 for wireless communication according to the present disclosure. Apparatus 1200 may be a UE (e.g., UE 120, UE 520), or a UE may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202 and a transmitting component 1204 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using receiving component 1202 and transmitting component 1204. As further shown, apparatus 1200 may include a communication manager 1208. Communication manager 1208 may control and / or otherwise manage one or more operations of receiving component 1202 and / or transmitting component 1204. In some aspects, communication manager 1208 may include a communication manager 1208 in conjunction with Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the UE described herein. The communication manager 1208 may be or be similar to Figure 1 and Figure 2For example, in some aspects, the communication manager 1208 can be configured to perform one or more of the functions described as being performed by the communication manager 140. In some aspects, the communication manager 1208 can include a receiving component 1202 and / or a sending component 1204. The communication manager 1208 can include, among other things, a location component 1210, a parameter component 1212, and / or an action component 1214.
[0172] In some aspects, the apparatus 1200 may be configured to perform the Figures 1 to 9 Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Figure 8 The process of 800 Fig.10 In some aspects, the apparatus 1200 and / or Fig.12 One or more of the components shown may include a combination of Figure 2 Additionally or alternatively, Fig.12 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.
[0173] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1206. The receiving component 1202 may provide the received communications to one or more other components of the device 1200. In some aspects, the receiving component 1202 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 device 1200. In some aspects, the receiving component 1202 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.
[0174] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1206. In some aspects, one or more other components of the device 1200 may generate communications and may provide the generated communications to the transmitting component 1204 for transmission to the device 1206. In some aspects, the transmitting component 1204 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1206. In some aspects, the transmitting component 1204 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 UE. In some aspects, the transmit component 1204 can be co-located with the receive component 1202 in a transceiver.
[0175] In some aspects, receiving component 1202 can receive a CD-SSB. Location component 1210 can obtain a location of an initial BWP specific to the UE with reduced capabilities based at least in part on the system information. Parameter component 1212 can obtain one or more parameters of an NCD-SSB based at least in part on a configuration of the initial BWP. Receiving component 1202 can receive the NCD-SSB in the initial BWP based at least in part on the one or more parameters. Action component 1214 can perform an idle mode procedure based at least in part on the NCD-SSB.
[0176] In some aspects, receiving component 1202 can receive a CD-SSB. Location component 1210 can obtain a location of the NCD-SSB based at least in part on a mapping associated with the SIB. Receiving component 1202 can receive the NCD-SSB at the location.
[0177] The action component 1214 may perform a first measurement based on an NCD-SSB, which is of a serving cell. The action component 1214 may perform a second measurement based on an NCD-SSB of a neighboring cell, wherein a frequency of the NCD-SSB of the serving cell and a frequency of the NCD-SSB of the neighboring cell are the same frequency. The action component 1214 may perform a first measurement based on an NCD-SSB, which is of a serving cell. The action component 1214 may perform a second measurement based on an NCD-SSB of a neighboring cell, wherein a frequency of the NCD-SSB of the serving cell and a frequency of the NCD-SSB of the neighboring cell are different frequencies.
[0178] Fig.12 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.12 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.12 Two or more components shown may be implemented in a single component, or Fig.12 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.12 The component set (one or more components) shown may be described as being executable by Fig.12 Another component shown may be a collection of components that perform one or more functions.
[0179] Fig.13 is a diagram of an example apparatus 1300 for wireless communication according to the present disclosure. Apparatus 1300 may be a network node (e.g., network node 110, network node 510), or a network node may include apparatus 1300. In some aspects, apparatus 1300 includes a receiving component 1302 and a transmitting component 1304 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1300 may communicate with another apparatus 1306 (such as a UE, a base station, or another wireless communication device) using receiving component 1302 and transmitting component 1304. As further shown, apparatus 1300 may include a communication manager 1308. Communication manager 1308 may control and / or otherwise manage one or more operations of receiving component 1302 and / or transmitting component 1304. In some aspects, communication manager 1308 may include a communication manager 1308 in conjunction with Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the network nodes described herein. The communications manager 1308 may be or be similar to Figure 1 and Figure 2 For example, in some aspects, the communication manager 1308 can be configured to perform one or more of the functions described as being performed by the communication manager 150. In some aspects, the communication manager 1308 can include a receiving component 1302 and / or a sending component 1304. The communication manager 1308 can include a parameter component 1310 and / or a selection component 1312, among others.
[0180] In some aspects, the apparatus 1300 may be configured to perform the Figures 1 to 7 Additionally or alternatively, the apparatus 1300 may be configured to perform one or more processes described herein, such as Fig. 9 The process of 900 Fig.11 In some aspects, Fig.13 The device 1300 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.13 One or more of the components shown may be combined with Figure 2Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.
[0181] The receiving component 1302 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1306. The receiving component 1302 may provide the received communications to one or more other components of the device 1300. In some aspects, the receiving component 1302 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 device 1300. In some aspects, the receiving component 1302 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.
[0182] Transmit component 1304 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1306. In some aspects, one or more other components of device 1300 may generate communications and may provide the generated communications to transmit component 1304 for transmission to device 1306. In some aspects, transmit component 1304 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) on the generated communications and may transmit the processed signals to device 1306. In some aspects, transmit component 1304 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 1304 can be co-located with the receive component 1302 in a transceiver.
[0183] In some aspects, the sending component 1304 can send the CD-SSB. The parameter component 1310 can determine one or more parameters for the NCD-SSB based at least in part on the configuration of the initial BWP specific to the UE with reduced capabilities. The sending component 1304 can send the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0184] In some aspects, transmitting component 1304 may transmit the CD-SSB. Transmitting component 1304 may transmit the NCD-SSB at a location based at least in part on a mapping associated with the SIB in the CD-SSB.
[0185] Transmitting component 1304 may transmit one or more parameters for NCD-SSB in an IE in the SIB for intra-frequency cell information or in an IE in the SIB for inter-frequency cell information to indicate that the user equipment is to perform neighbor cell measurements for the NCD-SSB.
[0186] The selecting component 1312 can select a frequency for NCD-SSB based at least in part on the selected classification for NCD-SSB measurement. The sending component 1304 can send a cell reselection priority specific to neighboring cells with NCD-SSB-based measurements instead of CD-SSB-based measurements in the SIB or another SIB. The sending component 1304 can send NCD-SSB configuration information for UEs with reduced capabilities in an IE for intra-frequency cell information or in an IE for inter-frequency cell information.
[0187] Fig.13 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.13 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.13 Two or more components shown may be implemented in a single component, or Fig.13 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.13 The component set (one or more components) shown may be described as being executable by Fig.13 Another component shown may be a collection of components that perform one or more functions.
[0188] The following provides an overview of some aspects of the disclosure:
[0189] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a cell definition (CD) synchronization signal burst (SSB); obtaining a location of an initial bandwidth part (BWP) specific to a UE with reduced capabilities based at least in part on system information; obtaining one or more parameters of a non-CD (NCD) SSB based at least in part on a configuration of the initial BWP; and receiving the NCD-SSB in the initial BWP based at least in part on the one or more parameters.
[0190] Aspect 2: The method according to aspect 1, wherein the one or more parameters include a timing offset of the NCD-SSB relative to the CD-SSB.
[0191] Aspect 3: The method according to aspect 1 or 2, wherein the one or more parameters include the time and frequency position of the NCD-SSB.
[0192] Aspect 4: The method according to any one of aspects 1 to 3, wherein the one or more parameters include a transmit power for the NCD-SSB.
[0193] Aspect 5: The method according to any one of aspects 1 to 4, wherein the one or more parameters include a transmit power value.
[0194] Aspect 6: The method according to any one of aspects 1 to 5, the method further comprising performing an idle mode procedure based at least in part on the NCD-SSB.
[0195] Aspect 7: The method according to aspect 6, wherein the idle mode procedure includes monitoring pages in a paging search space in the initial BWP shared by the NCD-SSB.
[0196] Aspect 8: The method according to aspect 6 or 7, wherein the initial BWP is configured with a random access channel response search space.
[0197] Aspect 9: The method according to any one of aspects 6 to 8, wherein the idle mode procedure includes selecting a beam for random access channel procedure based on the signal strength of the NCD-SSB.
[0198] Aspect 10: The method according to any one of aspects 6 to 8, wherein the idle mode procedure includes performing radio resource management measurements based on the NCD-SSB.
[0199] Aspect 11: A method of wireless communication performed by a network node, the method comprising: sending a cell definition (CD) synchronization signal burst (SSB); determining one or more parameters of a non-CD (NCD) SSB based at least in part on a configuration of an initial bandwidth part (BWP) specific to a UE with reduced capabilities; and sending the NCD-SSB in an initial BWP based at least in part on the one or more parameters.
[0200] Aspect 12: A method according to Aspect 11, wherein the one or more parameters include a timing offset of the NCD-SSB relative to the CD-SSB, a time and frequency position of the NCD-SSB, a transmit power used for the NCD-SSB, an initial bandwidth part (BWP) specific to UEs with reduced capabilities, or one or more of a transmit power value.
[0201] Aspect 13: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a cell definition (CD) synchronization signal burst (SSB); obtaining a location of a non-CD (NCD) SSB based at least in part on a mapping associated with a system information block (SIB); and receiving the NCD-SSB at the location.
[0202] Aspect 14: The method according to aspect 13, wherein the mapping indicates an offset between a frequency position of the CD-SSB and a frequency position of the NCD-SSB.
[0203] Aspect 15: The method according to aspect 13 or 14, wherein the mapping indicates an offset between a starting offset of the CD-SSB and a starting offset of the NCD-SSB.
[0204] Aspect 16: A method according to any one of Aspects 13 to 15, wherein the mapping indicates an offset between the transmit power of the CD-SSB and the transmit power of the NCD-SSB.
[0205] Aspect 17: The method according to any one of aspects 13 to 16, wherein the mapping indicates a scaling factor between the periodicity of the CD-SSB and the periodicity of the NCD-SSB.
[0206] Aspect 18: The method according to any one of aspects 13 to 17, wherein the mapping is included in a frequency specific information element.
[0207] Aspect 19: A method according to any one of aspects 13 to 17, wherein the mapping is included in a cell-specific information element.
[0208] Aspect 20: According to the method described in any one of Aspects 13 to 19, the method also includes, in response to the NCD-SSB configuration information for the UE with reduced capability and included in the information element for intra-frequency cell information of the SIB: performing a first measurement based on the NCD-SSB, the NCD-SSB being of the serving cell; and performing a second measurement based on the NCD-SSB of the neighboring cell, wherein the frequency of the NCD-SSB of the serving cell and the frequency of the NCD-SSB of the neighboring cell are the same frequency.
[0209] Aspect 21: According to the method described in any one of Aspects 13 to 19, the method also includes, in response to the NCD-SSB configuration information for the UE with reduced capability and included in the information element for inter-frequency cell information of the SIB: performing a first measurement based on the NCD-SSB, the NCD-SSB being of the serving cell; and performing a second measurement based on the NCD-SSB of the neighboring cell, wherein the frequency of the NCD-SSB of the serving cell and the frequency of the NCD-SSB of the neighboring cell are different frequencies.
[0210] Aspect 22: A method according to any one of Aspects 13 to 21, wherein the frequency used for the NCD-SSB indicated in the SIB is inter-frequency or intra-frequency, and wherein the method also includes performing cell reselection based at least in part on a cell reselection priority included in an information element specific to UEs with reduced capabilities.
[0211] Aspect 23: A method of wireless communication performed by a network node, the method comprising: sending a cell definition (CD) synchronization signal burst (SSB); and sending a non-CD (NCD) SSB at a location based at least in part on a mapping associated with a system information block (SIB) in the CD-SSB.
[0212] Aspect 24: A method according to Aspect 23, wherein the mapping indicates one or more of an offset between the frequency position of the CD-SSB and the frequency position of the NCD-SSB, an offset between the starting offset of the CD-SSB and the starting offset of the NCD-SSB, an offset between the transmission power of the CD-SSB and the transmission power of the NCD-SSB, or a scaling factor between the periodicity of the CD-SSB and the periodicity of the NCD-SSB.
[0213] Aspect 25: According to the method according to Aspect 23 or 24, the method also includes sending one or more parameters of the NCD-SSB in an information element (IE) for intra-frequency cell information in the SIB or in an IE for inter-frequency cell information in the SIB to indicate that the user equipment is to perform neighboring cell measurements on the NCD-SSB.
[0214] Aspect 26: The method according to aspect 25, wherein the mapping or the one or more parameters are frequency specific or cell specific.
[0215] Aspect 27: The method of any one of aspects 23 to 26, further comprising selecting a frequency for the NCD-SSB based at least in part on the selected classification for the NCD-SSB measurement
[0216] Aspect 28: The method according to any one of aspects 23 to 26, further comprising sending in the SIB or another SIB a cell reselection priority specific to neighboring cells having measurements based on NCD-SSB rather than CD-SSB.
[0217] Aspect 29: The method according to aspect 28, wherein the cell reselection priority is included in an information element (IE) for intra-frequency cell information or in an IE for inter-frequency cell information.
[0218] Aspect 30: According to any one of aspects 23 to 29, the method also includes sending NCD-SSB configuration information for UEs with reduced capabilities in an information element (IE) for intra-frequency cell information or in an IE for inter-frequency cell information.
[0219] Aspect 31: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to one or more of Aspects 1 to 30.
[0220] Aspect 32: A device for wireless communication, the device comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1 to 30.
[0221] Aspect 33: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 30.
[0222] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 30.
[0223] Aspect 35: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of a device, causes the device to perform a method according to one or more of aspects 1 to 30.
[0224] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be acquired from practice of the various aspects.
[0225] As used herein, the term "component" is intended to be broadly interpreted as hardware, and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures and / or functions, etc. As used herein, "processor" is implemented by a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, the operation and behavior of the system and / or method are not described herein with reference to specific software codes, because it will be understood by those skilled in the art that software and hardware can be designed to implement the system and / or method at least in part based on the description herein.
[0226] 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.
[0227] Although the specific combination of features is stated in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner not specifically stated in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (it includes a single member). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (for example, a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other sorting of a, b and c).
[0228] Any element, action or instruction used herein should not be interpreted as key or necessary, unless clearly stated. In addition, as used herein, the article "one" is intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more projects connected with the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects, and can be used interchangeably with "one or more". If only want to refer to a project, the phrase "only one" or similar terms will be used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "having" A elements can also have B). In addition, the phrase "based on" is intended to represent "based at least in part", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and can be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").
Claims
1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: Receive cell definition (CD) synchronization signal burst (SSB); obtaining a location of an initial bandwidth part (BWP) specific to the UE with reduced capabilities based at least in part on the system information; obtaining one or more parameters of a non-CD (NCD) SSB based at least in part on the configuration of the initial BWP; as well as The NCD-SSB is received in the initial BWP based at least in part on the one or more parameters.
2. The UE of claim 1, wherein the one or more parameters include a timing offset of the NCD-SSB relative to the CD-SSB.
3. The UE of claim 1, wherein the one or more parameters include a time and frequency location of the NCD-SSB.
4. The UE of claim 1, wherein the one or more parameters include a transmit power for the NCD-SSB. The UE of claim 1 , wherein the one or more parameters include a transmit power value.
6. The UE of claim 1, wherein the one or more processors are configured to perform idle mode procedures based at least in part on the NCD-SSB.
7. The UE of claim 6, wherein the idle mode procedure includes monitoring paging in a paging search space in the initial BWP shared by the NCD-SSB.
8. The UE of claim 6, wherein the initial BWP is configured with a random access channel response search space.
9. The UE of claim 6, wherein the idle mode procedure comprises selecting a beam for a random access channel procedure based on a signal strength of the NCD-SSB.
10. The UE of claim 6, wherein the idle mode procedure comprises performing radio resource management measurements based on the NCD-SSB.
11. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: Sending cell definition (CD) synchronization signal burst (SSB); determining one or more parameters of a non-CD (NCD) SSB based at least in part on a configuration of an initial bandwidth part (BWP) specific to the UE with reduced capability; as well as The NCD-SSB is sent in the initial BWP based at least in part on the one or more parameters.
12. The network node of claim 11, wherein the one or more parameters include one or more of a timing offset of the NCD-SSB relative to the CD-SSB, a time and frequency location of the NCD-SSB, a transmit power for the NCD-SSB, an initial bandwidth part (BWP) specific to UEs with reduced capabilities, or a transmit power value.
13. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: Receive cell definition (CD) synchronization signal burst (SSB); obtaining a location of a non-CD (NCD) SSB based at least in part on a mapping associated with a system information block (SIB); as well as The NCD-SSB is received at the location.
14. The UE of claim 13, wherein the mapping indicates an offset between a frequency position of the CD-SSB and a frequency position of the NCD-SSB.
15. The UE of claim 13, wherein the mapping indicates an offset between a starting offset of the CD-SSB and a starting offset of the NCD-SSB.
16. The UE of claim 13, wherein the mapping indicates an offset between a transmit power of the CD-SSB and a transmit power of the NCD-SSB.
17. The UE of claim 13, wherein the mapping indicates a scaling factor between a periodicity of the CD-SSB and a periodicity of the NCD-SSB.
18. The UE of claim 13, wherein the mapping is included in a frequency specific information element.
19. The UE of claim 13, wherein the mapping is included in a cell-specific information element.
20. The UE of claim 13, wherein in response to NCD-SSB configuration information for UEs with reduced capabilities being included in an information element for intra-frequency cell information of the SIB, the one or more processors are configured to: performing a first measurement based on the NCD-SSB, the NCD-SSB being of a serving cell; and The second measurement is performed based on the NCD-SSB of the neighboring cell, wherein a frequency of the NCD-SSB of the serving cell and a frequency of the NCD-SSB of the neighboring cell are the same frequency.
21. The UE of claim 13, wherein in response to NCD-SSB configuration information for UEs with reduced capabilities being included in an information element for inter-frequency cell information of the SIB, the one or more processors are configured to: performing a first measurement based on the NCD-SSB, the NCD-SSB being of a serving cell; and The second measurement is performed based on the NCD-SSB of the neighboring cell, wherein a frequency of the NCD-SSB of the serving cell and a frequency of the NCD-SSB of the neighboring cell are different frequencies.
22. The UE of claim 13, wherein the frequency indicated in the SIB for the NCD-SSB is inter-frequency or intra-frequency, and wherein the one or more processors are configured to perform cell reselection based at least in part on a cell reselection priority included in an information element specific to UEs with reduced capabilities.
23. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: sending a cell definition (CD) synchronization signal burst (SSB); and A non-CD (NCD) SSB is sent at a location based at least in part on a mapping associated with a system information block (SIB) in the CD-SSB.
24. A network node according to claim 23, wherein the mapping indicates one or more of an offset between a frequency position of the CD-SSB and a frequency position of the NCD-SSB, an offset between a starting offset of the CD-SSB and a starting offset of the NCD-SSB, an offset between a transmit power of the CD-SSB and a transmit power of the NCD-SSB, or a scaling factor between a periodicity of the CD-SSB and a periodicity of the NCD-SSB.
25. A network node according to claim 23, wherein the one or more processors are configured to send one or more parameters of the NCD-SSB in an information element (IE) for intra-frequency cell information in the SIB or in an IE for inter-frequency cell information in the SIB to indicate that a user equipment is to perform neighboring cell measurements on the NCD-SSB.
26. The network node of claim 25, wherein the mapping or the one or more parameters are frequency specific or cell specific.
27. The network node of claim 23, wherein the one or more processors are configured to select a frequency for the NCD-SSB based at least in part on the selected classification for the NCD-SSB measurement.
28. The network node of claim 23, wherein the one or more processors are configured to send in the SIB or another SIB a cell reselection priority specific to neighboring cells having NCD-SSB based measurements instead of CD-SSB based measurements.
29. The network node of claim 28, wherein the cell reselection priority is included in an information element (IE) for intra-frequency cell information or in an IE for inter-frequency cell information.
30. The network node of claim 29, wherein the one or more processors are configured to send NCD-SSB configuration information for UEs with reduced capabilities in an information element (IE) for intra-frequency cell information or in an IE for inter-frequency cell information.