Idle mode enhancements for network deployment
By transmitting configuration information between the UE and the network node, the UE monitors the low-band cell and receives the system information of the high-band cell in the idle mode, solving the problems of poor coverage of the high-band cell and large signaling overhead, and achieving more efficient communication performance and resource utilization.
Patent Information
- Application Number
- CN202380060060.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-09
- Filing Date
- 2023-07-26
- Publication Date
- 2025-04-25
AI Technical Summary
In heterogeneous network deployment, the smaller coverage area and higher frequency environment changes of high-frequency cells lead to frequent UE cell selection and large overhead of system information signaling, affecting communication performance and resource efficiency.
By transmitting configuration information related to cell selection or reselecting procedures between the UE and the network node, the UE monitors the broadcast channel of the low-band cell in idle mode and receives system information of the high-band cell from the cell, based on this information, performing RRM measurements to establish a connection.
The UE is realized to reside on low-band cells with better coverage and reliability, and at the same time obtain measurement information of high-band cells, reducing the overhead of system information signaling and the UE's network resources and power consumption.
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Figure CN119895959A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. non-provisional patent application No. 17 / 931,085, filed on September 9, 2022, entitled “IDLE MODE ENHANCEMENTS FOR NETWORK DEPLOYMENTS,” which is hereby expressly incorporated herein by reference. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus associated with idle mode enhancements for network deployment. Background Art
[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0005] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).
[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by 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
[0007] Some aspects described herein relate to a user equipment (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 cause the UE to receive configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurements. The one or more processors may be configured to cause the UE to monitor a broadcast channel associated with the first cell in idle mode at least in part based on selecting a first cell according to the configuration information. The one or more processors may be configured to cause the UE to receive system information associated with a second cell from the first cell. The one or more processors may be configured to cause the UE to establish a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
[0008] 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 cause the network node to receive one or more system information sets associated with one or more cells, the one or more cells being associated with the network node or another network node. The one or more processors may be configured to cause the network node to send system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node.
[0009] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a UE. The method may include receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurements. The method may include monitoring a broadcast channel associated with a first cell in an idle mode based at least in part on selecting the first cell according to the configuration information. The method may include receiving system information associated with a second cell from the first cell. The method may include establishing a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
[0010] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a network node. The method may include receiving one or more system information sets associated with one or more cells, the one or more cells being associated with the network node or another network node. The method may include sending, via a first cell associated with the network node, system information from the one or more system information sets associated with a second cell from the one or more cells.
[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio RRM measurements. The instruction set, when executed by one or more processors of the UE, may cause the UE to monitor a broadcast channel associated with the first cell in idle mode based at least in part on selecting the first cell according to the configuration information. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive system information associated with a second cell from the first cell. The instruction set, when executed by one or more processors of the UE, may cause the UE to establish a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
[0012] 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 receive one or more system information sets associated with one or more cells, the one or more cells being associated with the network node or another network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node.
[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a component for receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurements. The apparatus may include a component for monitoring a broadcast channel associated with a first cell in an idle mode based at least in part on selecting the first cell according to the configuration information. The apparatus may include a component for receiving system information associated with a second cell from the first cell. The apparatus may include a component for establishing a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving one or more system information sets associated with one or more cells associated with the network node or another network node. The apparatus may include means for sending, via a first cell associated with the network node, system information from the one or more system information sets associated with a second cell from the one or more cells.
[0015] 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.
[0016] 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.
[0017] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment, and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements, and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0020] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.
[0021] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.
[0022] Figure 4 is a diagram illustrating an example of a wireless network in which a UE may support additional communication modes according to the present disclosure.
[0023] Figure 5 is a diagram illustrating an example of heterogeneous network deployment according to the present disclosure.
[0024] Figure 6 is a diagram illustrating an example associated with initial access enhancement for network deployment according to the present disclosure.
[0025] Figure 7 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0026] Figure 8 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.
[0027] Fig. 9 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0028] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0029] 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.
[0030] 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.
[0031] 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).
[0032] 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)).
[0033] 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.
[0034] 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).
[0035] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with the network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a plurality 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 repeatedly perform 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.
[0036] 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.
[0037] 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).
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] 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.
[0043] 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).
[0044] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.
[0045] 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.
[0046] In some aspects, UE 120 may include a communications manager 140. As described in more detail elsewhere herein, communications manager 140 may receive configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurements; monitor a broadcast channel associated with a first cell in idle mode based at least in part on selecting the first cell according to the configuration information; receive system information associated with a second cell from the first cell; and establish a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information. Additionally or alternatively, communications manager 140 may perform one or more other operations described herein.
[0047] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may receive one or more system information sets associated with one or more cells associated with the network node or another network node; and send system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0048] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.
[0049] 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.
[0050] At the network node 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The 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).
[0051] 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.
[0052] 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.
[0053] 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).
[0054] 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 6 to 10 ) any aspects of any of the methods described herein.
[0055] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 6 to 10 ) any aspects of any of the methods described herein.
[0056] 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 idle mode enhancements for network deployment, 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 that can execute or guide e.g. Figure 7 The process of 700 Figure 8 800 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 by one or more processors of network node 110 and / or UE 120 (e.g., directly executed, or executed after compilation, conversion and / or interpretation), may cause one or more processors, UE 120 and / or network node 110 to perform or direct, for example, Figure 7 The process of 700 Figure 8 The process 800 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.
[0057] In some aspects, the UE 120 includes a component for receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurements; a component for monitoring a broadcast channel associated with the first cell in idle mode based at least in part on selecting the first cell according to the configuration information; a component for receiving system information associated with the second cell from the first cell; and / or a component for establishing a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information. The components for the UE 120 to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.
[0058] In some aspects, the network node 110 includes components for receiving one or more system information sets associated with one or more cells associated with the network node or another network node; and / or components for sending system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node. In some aspects, the components for the network node 110 to perform the operations described herein may include, for example, one or more of the following: the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.
[0059] 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.
[0060] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.
[0061] 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 base station, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) performing base station functionality can be implemented as an aggregated base station (also called an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "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).
[0062] 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.
[0063] 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.
[0064] Figure 3 3 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units, such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.
[0065] 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.
[0066] 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.
[0067] 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.
[0068] 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).
[0069] 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.
[0070] 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.
[0071] 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).
[0072] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.
[0073] Figure 4 4 is a diagram illustrating an example 400 of a wireless network (e.g., wireless network 100) in which a UE (e.g., UE 120) can support additional communication modes according to the present disclosure. The UE can be communicatively connected to one or more network nodes 110 in the wireless network. For example, the UE can be connected to the one or more network nodes 110 in a dual connectivity configuration. In this case, the first network node 110 can serve the UE as a primary node, and the second network node 110 can serve the UE as a secondary node.
[0074] like Figure 4 As shown, the UE may support a connected communication mode (e.g., RRC connected mode 402), an idle communication mode (e.g., RRC idle mode 404), and an inactive communication mode (e.g., RRC inactive mode 406). The RRC connected mode 402 may also be referred to as an RRC active mode. The RRC inactive mode 406 may reside functionally between the RRC connected mode 402 and the RRC idle mode 404.
[0075] The UE may transition between different modes based at least in part on various commands and / or communications received from one or more network nodes 110. For example, the UE may transition from RRC connected mode 402 or RRC inactive mode 406 to RRC idle mode 404 based at least in part on receiving an RRCRelease communication. As another example, the UE may transition from RRC connected mode 402 to RRC inactive mode 406 based at least in part on receiving an RRCRelease communication with a suspendConfig. As another example, the UE may transition from RRC idle mode 404 to RRC connected mode 402 based at least in part on receiving an RRCSetupRequest communication. As another example, the UE may transition from RRC inactive mode 406 to RRC connected mode 402 based at least in part on receiving an RRCResumeRequest communication.
[0076] When transitioning to the RRC inactive mode 406, the UE and / or one or more network nodes 110 may store the UE context (e.g., access stratum (AS) context and / or higher layer configuration). This permits the UE and / or one or more network nodes 110 to apply the stored UE context when the UE transitions from the RRC inactive mode 406 to the RRC connected mode 402 in order to resume communication with the one or more network nodes 110, which reduces the latency of transitioning to the RRC connected mode 402 relative to transitioning from the RRC idle mode 404 to the RRC connected mode 402.
[0077] In some cases, the UE may be communicatively connected with a new primary node (e.g., a primary node different from the last serving primary node when the UE transitioned to the RRC idle mode 404 or the RRC inactive mode 406) when transitioning from the RRC idle mode 404 or the RRC inactive mode 406 to the RRC connected mode 402. In this case, the new primary node may be responsible for identifying the secondary node for the UE in the dual connectivity configuration.
[0078] When operating in RRC idle mode 404 and / or RRC inactive mode 406, the UE may camp on a cell. "Camping" on a cell or network node may refer to the UE monitoring a broadcast from the cell (e.g., monitoring a broadcast channel and / or a control channel associated with the cell or network node) to maintain readiness to actively connect to the cell or network node and utilize a wireless communication system. For example, a broadcast channel may be used to send system information associated with a cell and / or a paging signal for the UE. A UE that has selected a cell and is monitoring a control channel of the cell may be referred to as "camping" on the cell. For example, while camping on a cell, the UE may monitor a serving cell for paging or other communications (e.g., via a broadcast channel) that indicate that the UE should transition to RRC connected mode 402.
[0079] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.
[0080] Figure 5 1 is a diagram illustrating an example of a heterogeneous network deployment 500 according to the present disclosure. The heterogeneous network deployment 500 may include multiple cells. The multiple cells may be cells of different types and / or may be associated with different network nodes (eg, different network nodes 110).
[0081] For example, Figure 5 As shown, the heterogeneous network deployment 500 may include a network node 505 (e.g., network node 110). The network node 505 may be associated with a cell 510. The cell 510 may have a first coverage area. The heterogeneous network deployment 500 may include a network node 515. The network node 515 may be associated with a cell 520. The cell 520 may have a second coverage area. Similarly, the heterogeneous network deployment 500 may include a network node 525 (e.g., associated with a cell 530) and a network node 535 (e.g., associated with a cell 540). In other examples, the heterogeneous network deployment 500 may include more cells and / or network nodes or fewer cells and / or network nodes.
[0082] Cell 510 may be a cell of the first type. For example, cell 510 may be associated with a first frequency band and / or a first RAT. Cell 520, cell 530, and / or cell 540 may be cells of the second type. For example, cell 520, cell 530, and / or cell 540 may be associated with a second frequency band and / or a second RAT. In one example, network node 505 may be a network node (e.g., a base station, RU, DU, and / or CU) associated with a first RAT, and network node 515, network node 525, and / or network node 535 may be RUs associated with a second RAT.
[0083] For example, in heterogeneous network deployment 500, a cell operating using a high frequency band (such as an EHF band, FR3, FR4, FR5, a sub-terahertz band (e.g., which may include a frequency of several hundred GHz, such as 100GHz-300GHz) and / or other high frequency bands) may be deployed. A cell operating using a high frequency band (e.g., such as a cell 520, a cell 530, and / or a cell 540) may be referred to herein as a "high frequency band cell". The high frequency band cell may provide an increased data capacity and / or increased throughput (e.g., due to the increased bandwidth associated with the high frequency band) for the UE. For example, a UE 120 and a network node associated with the high frequency band cell may communicate using a larger bandwidth size (such as a 7.5GHz bandwidth or a larger bandwidth size, etc.). Communicating using a larger bandwidth size may result in an increase in the communication throughput between the UE 120 and the network node.
[0084] RF constraints and propagation characteristics unique to high frequency bands may introduce new design challenges to wireless networks. For example, high frequency bands may be associated with high path loss. Therefore, in order to compensate for the high path loss, the network nodes and UE 120 may communicate using narrow beams (e.g., beams with narrow beam widths or signals whose energy is concentrated in a narrow directional range). In such examples, spatial division multiplexing (SDM) may be used (e.g., where different spatially separable antenna beams are formed for different UEs). However, narrow beams may be susceptible to beam blocking, interference, or another intervening factor that degrades the performance of signals transmitted via the narrow beams. Therefore, high frequency band cells may be associated with smaller coverage areas (e.g., geographic areas associated with the cells) compared to cells using lower operating frequencies (e.g., which may be referred to herein as "low frequency band cells") (such as cell 510). Due to the smaller coverage areas of high frequency band cells, in some network deployments, high frequency band cells may be more densely distributed in the wireless network than low frequency band cells. For example, as Figure 5 As shown, multiple high-band network nodes (eg, network node 515 , network node 525 , and / or network node 535 ) may be deployed within the coverage area of a single low-band network node (eg, within the coverage area of a low-band cell such as cell 510 ).
[0085] The poor coverage associated with the high frequency band cell may introduce challenges to the initial access and idle mode (e.g., RRC idle mode) process of the UE. For example, the UE may select a cell and / or network node associated with the high frequency band to reside. However, due to the poor coverage associated with the high frequency band cell, the UE may have to frequently (re)select different cells (e.g., as the UE moves in the heterogeneous network deployment 500). This may consume processing resources and / or network resources. As another example, because the high frequency band cell may be densely deployed, the heterogeneous network deployment 500 may be associated with a significant overhead for system information signaling. For example, each network node and / or each cell in the heterogeneous network deployment 500 may broadcast system information. Because the heterogeneous network deployment 500 may be associated with an increased number of cells and / or network nodes, the system information signaling may consume a large amount of network resources and / or power resources of the UE (e.g., because the UE may be required to monitor each network node and / or each cell in the heterogeneous network deployment 500 and / or receive system information from each network node and / or each cell).
[0086] In addition, higher frequency band can provide narrower beam structure and higher transmission rate, but higher frequency band may also encounter higher attenuation and diffraction loss, wherein the blocking of LOS path may degrade the quality of wireless link.For example, when two wireless devices communicate with each other based on LOS path in higher frequency band and the LOS path is blocked by obstacles such as pedestrians, buildings and / or vehicles, the received power may significantly decrease.Therefore, compared with lower frequency band, wireless communication based on higher frequency band may be more susceptible to environmental changes.In order to ensure that UE and high frequency band cell use the best beam or beam pair to communicate, beam management procedures may be performed by UE and / or network node.However, because higher frequency band may be more susceptible to environmental changes than lower frequency band, it may be necessary to perform beam management procedures more frequently and / or using additional beams.This may introduce significant overhead, and consume network resources, processing resources and / or power resources of UE (and / or network node) associated with performing beam management procedures.
[0087] Some techniques and apparatus described herein implement idle mode enhancements for network deployment. For example, a UE may receive configuration information associated with a cell reselection procedure, the configuration information indicating first policy information associated with cell selection (e.g., which cells are available for the UE to select and / or camp on) and second policy information associated with RRM measurement (e.g., which cells are to be measured by the UE). Additionally or alternatively, the UE may receive system information associated with the second cell from the first cell. The UE may establish a connection with a cell (e.g., a second cell) based at least in part on the system information (e.g., received via a different cell) and one or more RRM measurements performed according to the configuration information.
[0088] Thus, the UE may be enabled to receive system information and / or reside on a cell (e.g., a low-band cell) associated with better coverage and / or higher reliability. The UE may be enabled to reside on a cell with better coverage and / or higher reliability while still obtaining measurement information associated with other cells (e.g., a high-band cell). In addition, by enabling a cell associated with a first type of cell (e.g., a low-band cell) to send system information associated with a cell associated with a second type of cell (e.g., a high-band cell), the signaling overhead associated with system information signaling for heterogeneous network deployment may be reduced. In addition, because the first type of cell may be associated with better coverage and / or higher reliability (e.g., compared to the second type of cell), the reliability of the system information signaling and / or the possibility of enabling the UE to receive system information of the second type of cell may be improved. In addition, enabling a low-band cell to send system information associated with a high-band cell may save network resources, processing resources, and / or power resources that would otherwise be used by the high-band cell to send (e.g., via beam scanning) to send system information using a higher frequency band.
[0089] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.
[0090] Figure 6 6 is a diagram illustrating an example 600 associated with initial access enhancement for network deployment according to the present disclosure. Figure 6 As shown, a first network node 605 (e.g., network node 110, base station, CU, DU, and / or RU) and / or a second network node 610 (e.g., network node 110, base station, CU, DU, and / or RU) may communicate with UE 120. In some aspects, first network node 605, second network node 610, and UE 120 may be part of a wireless network (e.g., wireless network 100). In some aspects, first network node 605, second network node 610, and UE 120 may be part of a heterogeneous network deployment such as heterogeneous network deployment 500. For example, a first cell may be associated with a coverage area. A second cell may be included in the coverage area of the first cell.
[0091] The first network node 605 may be associated with the first cell, and the second network node 610 may be associated with the second cell. In some aspects, the first cell may be an anchor cell of the second cell. As used herein, an "anchor" cell may be a cell (or network node) that supports performing an initial access process (e.g., a random access process based on contention) with UE 120 in order to establish a connection between another cell and UE 120 (e.g., the second cell), as described in more detail elsewhere herein. In some aspects, the second cell may be referred to as a "target" cell. The target cell may be a cell that UE 120 identifies and / or selects for establishing a communication link or connection. In some aspects, the first cell may be associated with a first operating frequency range and / or a first RAT. The second cell may be associated with a second operating frequency range and / or a second RAT. For example, the first cell may be a low-frequency band cell (e.g., a 5G cell and / or a cell operating using an operating frequency included in FR1 and / or FR2), and the second cell may be a high-frequency band cell (e.g., a 6G cell and / or a cell operating using an operating frequency including FR3, FR4, FR5, EHF band and / or sub-terahertz band).
[0092] In some aspects, the first cell and the second cell may be associated with different network nodes. In other aspects, the first cell and the second cell may be associated with at least one common network node. For example, the first network node 605 may be a first RU, a first base station and / or a first DU. The second network node 610 may be a second RU, a second base station and / or a second DU. The first network node 605 and the second network node 610 may be associated with the same control entity (such as the same DU and / or the same CU). Alternatively, the first network node 605 and the second network node 610 may be associated with different control entities.
[0093] In some aspects, the actions described herein as being performed by the network node 110 (or cell) may be performed by multiple different network nodes. For example, a configuration action may be performed by a first network node (e.g., a CU or DU), and a radio communication action may be performed by a second network node (e.g., a DU or RU). As used herein, a network node 110 "sending" a communication to a UE 120 may refer to direct transmission (e.g., from the network node 110 to the UE 120), or indirect transmission via one or more other network nodes or devices. For example, if the network node 110 is a DU, indirect transmission to the UE 120 may include the DU sending a communication to the RU and the RU sending a communication to the UE 120. Similarly, a UE 120 "sending" a communication to the network node 110 may refer to direct transmission (e.g., from the UE 120 to the network node 110), or indirect transmission via one or more other network nodes or devices. For example, if the network node 110 is a DU, indirect transmission to the network node 110 may include the UE 120 sending a communication to the RU and the RU sending a communication to the DU. Additionally, UE 120 receiving communications from or sending communications to a cell may refer to UE 120 receiving communications from or sending communications to a network node associated with the cell.
[0094] In some aspects, UE 120 may send a capability report, and first network node 605 and / or second network node 610 may receive the capability report. The capability report may indicate that UE 120 supports performing idle mode operations, as described in more detail elsewhere herein. For example, UE 120 may send an indication that UE 120 supports receiving system information associated with a second cell via a first cell, as described in more detail elsewhere herein. As another example, UE 120 may send an indication that UE 120 supports receiving system information via differential information and / or preconfigured indexes, etc.
[0095] As indicated by reference numeral 615, the first network node 605 (e.g., the first cell) may send one or more system information communications, and the UE 120 may receive the one or more system information communications. For example, the one or more system information communications may include one or more system information blocks (SIBs). In some aspects, the one or more system information communications may include a master information block (MIB). In some aspects, the one or more system information communications may include an initial access configuration associated with the first cell. For example, the initial access configuration may include one or more random access channel (RACH) configurations and / or one or more physical RACH (PRACH) configurations. For example, the UE 120 may receive an indication of an initial access configuration associated with the first cell, and the first network node 605 (or the first cell) may send the indication of the initial access configuration associated with the first cell.
[0096] In some aspects, the first network node 605 (e.g., the first cell) may send system information associated with the second cell, and the UE 120 may receive the system information associated with the second cell. For example, the first network node 605 and / or the first cell may act as an anchor cell for one or more cells including the second cell. The first cell (e.g., the anchor cell) may broadcast an indication of the system information of the cell (e.g., the second cell) supported by the first cell. The first network node 605 (e.g., the first cell) may receive one or more system information sets associated with one or more cells. For example, the first network node 605 may communicate with other network nodes such as the second network node 610 to obtain system information associated with one or more cells supported by the first cell. In some aspects, the first network node 605 (e.g., the first cell) may receive one or more system information sets associated with one or more cells from a control entity such as a CU or a core network node. The first network node 605 and / or the first cell may broadcast an indication of one or more system information sets, as described in more detail elsewhere herein. For example, the first network node 605 (and / or the first cell) may send system information associated with the second cell, and the UE 120 may receive the system information associated with the second cell. The first network node 605 (and / or the first cell) may send system information associated with other cells in a similar manner as described herein in conjunction with the system information associated with the second cell.
[0097] For example, the first network node 605 (and / or the first cell) may send an indication of the system information, and the UE 120 may receive the indication of the system information as differential information relative to the system information associated with the first cell. For example, as described above, the first network node 605 and / or the first cell may broadcast one or more SIBs and / or MIBs associated with the first cell. In some aspects, the system information associated with the second cell may be at least partially identical to the system information associated with the first cell. Therefore, in order to reduce the size of the signaling of the system information associated with the second cell, the first network node 605 (and / or the first cell) may send an indication of the system information of the second cell that is different from the system information associated with the first cell (e.g., and may not send an indication of the system information that is the same as the system information associated with the first cell).
[0098] For example, if UE 120 does not receive an indication of one or more system information parameters for the second cell, UE 120 may assume that the one or more system information parameters are associated with the same information or value as one or more parameters indicated via system information associated with the first cell. In other words, the MIB and / or SIB of the anchor cell (e.g., the first cell) may be used as a baseline for signaling system information associated with other cells (e.g., the second cell) by the anchor cell. For other cells, the anchor cell (e.g., the first cell) may only signal the difference with the MIB and / or SIB of the anchor cell (e.g., the first cell). This may reduce the signaling overhead associated with indicating system information associated with the second cell and / or other cells (e.g., high frequency band cells) included in the wireless network.
[0099] Additionally or alternatively, the first network node 605 and / or the first cell may send system information associated with other cells only in the spatial direction toward the other cells. For example, the first network node 605 and / or the first cell may be associated with a beam set. The second cell may be located in the spatial direction (e.g., geographically) relative to the location of the first cell. The first network node 605 and / or the first cell may use a subset of beams from the beam set associated with the spatial direction toward the second cell to send system information associated with the second cell. In other words, the first network node 605 and / or the first cell may send system information associated with the second cell only via beams that overlap with the spatial direction toward the coverage area of the second cell.
[0100] For example, it may not be beneficial to send system information associated with the second cell in a spatial direction that is not toward the coverage area of the second cell, because the UE that can receive the system information may not be in or near the coverage area of the second cell. Therefore, in order to save spatial resources and / or signaling overhead associated with sending system information associated with the second cell, the first network node 605 and / or the first cell may send an indication of the system information via a subset of beams associated with the spatial direction toward the coverage area of the second cell from the beam set. The UE 120 may receive an indication of the system information via a beam (e.g., a transmit beam and / or a spatial beam) included in the beam subset. The first network node 605 and / or the first cell may determine the geographic location of other cells including the second cell based at least in part on communication with other cells and / or control entities (such as a CU or a core network node). The first network node 605 and / or the first cell may determine the subset of beams by which the system information associated with the second cell is to be sent based at least in part on the geographic location of the coverage area of the second cell. The first network node 605 and / or the first cell may send system information for the other cell via other beams from the beam set associated with a spatial direction towards the coverage area of the other cell in a similar manner as described herein.
[0101] Additionally or alternatively, the first network node 605 and / or the first cell may signal system information associated with the second cell via one or more index values. For example, cells located in or near the same tracking area may be associated with similar or identical system information. Therefore, the network (e.g., the first network node 605 or another network node) may configure one or more system information sets (e.g., one or more possible system information sets). The network (e.g., the first network node 605 or another network node) may configure one or more system information sets to be associated with or mapped to corresponding index values. Therefore, when the first network node 605 and / or the first cell sends an indication of system information associated with the second cell, the first network node 605 and / or the first cell may send an indication of one or more index values corresponding to one or more of the configured possible system information sets.
[0102] For example, UE 120 may receive one or more system information sets associated with corresponding index values. For example, UE 120 may receive one or more system information sets and / or corresponding index values via an initial attach communication, a radio resource control communication, or a tracking area update communication. UE 120 may receive, via the first cell, an indication of an index value from the corresponding index value, the index value being associated with a system information set from the one or more system information sets including system information associated with the second cell. UE 120 may identify system information associated with the second cell based at least in part on the one or more index values signaled by the first network node 605 and at least in part on the configured system information sets.
[0103] For example, during an initial attach or tracking area update, the network may provide the UE 120 with a set of system information used by the cells in the tracking area. For the second cell, the anchor cell (e.g., the first cell) may signal an index value of the configured system information used by the second cell. In some aspects, the first network node 605 and / or the first cell may send additional system information associated with the second cell, and the UE 120 may receive the additional system information associated with the second cell. The additional system information may overwrite or replace information indicated by the configured system information (e.g., information indicated by an index value signaled to the UE 120, as described elsewhere herein).
[0104] In some aspects, UE 120 may receive a single index value corresponding to a set of system information associated with the second cell. In other aspects, multiple index values corresponding to a subset of system information associated with the second cell may be signaled. Enabling the first network node 605 and / or the first cell to use multiple index values may provide additional flexibility for the first network node 605 and / or the first cell to signal system information associated with other cells. Enabling the first network node 605 and / or the first cell to use index values to signal system information associated with other cells may reduce the size of the signaling because the first network node 605 and / or the first cell may not send all system information associated with other cells.
[0105] Additionally or alternatively, the first network node 605 and / or the first cell may send an indication of first system information associated with the second cell, and the UE 120 may receive the indication of the first system information associated with the second cell. The UE 120 may receive the first system information associated with the second cell via the second cell (e.g., after establishing a connection with the second cell). For example, the first system information may be minimum system information (e.g., basic information required for initial access and acquisition of any other system information). In some aspects, the first system information may include information indicated via the MIB and / or SIB1 associated with the second cell. In some aspects, the first system information may include access control information, such as cell barring information and / or intra-frequency reselection indication (IFRI), etc. The second system information may be on-demand system information. The UE 120 may perform a first random access procedure with the first network node 605 to obtain access control information. The UE 120 may perform a second random access procedure with the second network node 610 to obtain other system information associated with the second cell. For example, the first random access procedure may be configured to request system information (e.g., a random access channel resource configured to request system information may be used).
[0106] For example, an anchor cell (e.g., a first cell) may broadcast basic system information associated with a neighboring cell (e.g., a second cell). This may reduce the signaling overhead associated with the first network node 605 and / or the first cell sending system information associated with the second cell. The UE 120 may use an on-demand system information acquisition procedure to obtain other system information associated with the second cell (e.g., obtain other SIBs associated with the second cell). In some aspects, the UE 120 may receive other system information associated with the second cell via the first cell after establishing a connection (e.g., a connection of an RRC connection) with the first cell. For example, the UE 120 may perform a RACH procedure to establish a connection with the first cell (e.g., in an RRC connected mode). The UE 120 may receive second system information (e.g., other system information and / or on-demand system information) via the first cell after establishing a connection with the first cell.
[0107] In some examples, the anchor cell (e.g., the first cell) may group the SIB common information together (e.g., for a cell-specific configuration). For example, the SIB common information may be mapped (e.g., in a systematic manner) to a cell identifier of a target cell (e.g., the second cell). In this way, the UE may be enabled to (e.g., automatically) decode the SIB common information based at least in part on measurements of the target cell (e.g., to facilitate handover and / or other mobility operations).
[0108] In some aspects, the first network node 605 and / or the first cell may use a combination of the above signaling techniques to signal system information associated with the second cell. For example, the first network node 605 and / or the first cell may use differential signaling and beam-specific signaling to signal system information associated with the second cell. As another example, beam-specific signaling and index values may be used by the first network node 605 and / or the first cell to signal system information associated with the second cell. As another example, differential signaling, beam-specific signaling, and index values may be used by the first network node 605 and / or the first cell to signal system information associated with the second cell. As another example, basic and / or minimum system information may be signaled by the first network node 605 and / or the first cell via differential signaling, beam-specific signaling, and / or index values. Any other combination of the techniques described in more detail herein may be used by the first network node 605 and / or the first cell to signal system information associated with the second cell.
[0109] As indicated by reference numeral 620, UE 120 may camp on a serving cell. For example, the serving cell may be a first cell (e.g., associated with first network node 605). For example, UE 120 may monitor a control channel (e.g., a physical downlink control channel (PDCCH)) associated with the first cell. For example, UE 120 may operate in an idle mode (e.g., an RRC idle mode). UE 120 may select the first cell as a serving cell based at least in part on configuration information associated with a cell reselection procedure.
[0110] For example, UE 120 may receive configuration information. First network node 605, second network node 610, or another network node may send configuration information. In some aspects, UE 120 may receive configuration information via one or more of RRC signaling, one or more medium access control (MAC) control elements (MAC-CEs), and / or downlink control information (DCI), etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by UE 120 (e.g., stored by UE 120 and / or previously indicated to UE 120) and / or explicit configuration information for UE 120 to configure itself, etc. In some aspects, UE 120 may receive configuration information via system information (e.g., received by UE 120 as described above in conjunction with reference numeral 615). In other aspects, UE 120 may receive configuration information via another communication (e.g., after establishing a connection with a network node (such as an RRC connected mode connection)).
[0111] The configuration information may be associated with a cell selection or reselection procedure. For example, the configuration information may indicate one or more parameters that define the manner in which the UE 120 is to select or reselect a serving cell and / or a cell to establish a connection with. For example, the configuration information may indicate cell barring information, one or more cell selection criteria conditions (e.g., one or more S conditions, such as a cell selection reception level (Srxlev) parameter and / or a cell selection received signal quality (Squal) parameter, etc.).
[0112] In some aspects, the configuration information may indicate the priority level associated with each cell for RRM measurement. For example, UE 120 may be configured with priority levels for different frequencies based on the cell (re)selection priority. For example, the configuration information may indicate that a low-band frequency (e.g., including a frequency used by a first cell) is associated with a first priority and a high-band frequency (e.g., including a frequency used by a second cell) is associated with a second priority. The first priority may indicate a priority higher than the priority indicated by the second priority. Therefore, when UE 120 operates in RRC idle mode, UE 120 may be more likely to select a low-band cell as the serving cell of UE 120. Since a low-band cell (e.g., a first cell) may be associated with improved coverage and / or reliability (e.g., compared with a high-band cell such as a second cell), this may improve the communication performance of UE 120 in RRC idle mode. In addition, this may enable UE 120 to perform measurements (e.g., RRM measurements) of high-band cells to obtain information associated with high-band cells when operating in RRC idle mode.
[0113] Additionally or alternatively, the configuration information may indicate cell barring information (e.g., indicating cells that are permitted and / or not permitted to be selected by UE 120 as serving cells for camping). For example, the configuration information may indicate that low-frequency band cells (e.g., including the first cell) are permitted to be selected by UE 120 as serving cells for camping (e.g., the low-frequency band cells may be included in a whitelist indicated by the configuration information). In addition, the configuration information may indicate that high-frequency band cells (e.g., including the second cell) are not permitted to be selected by UE 120 as serving cells for camping (e.g., the high-frequency band cells may be included in a blacklist indicated by the configuration information). In such examples, UE 120 may not perform measurements (e.g., RRM measurements) of associated cells (e.g., high-frequency band cells, such as the second cell) that are indicated as not permitted to be selected by UE 120.
[0114] In some aspects, the configuration information may indicate first policy information associated with cell selection and second policy information associated with RRM measurement. For example, the configuration information may indicate a first policy or configuration information associated with a cell permitted to be selected by UE 120 as a serving cell and a second policy or configuration information associated with a cell to be measured by UE 120 in RRC idle mode.
[0115] For example, the first policy information may indicate that a first type of cell is permitted to be selected for camping, and a second type of cell is not permitted to be selected for camping. The first type of cell may be associated with a first frequency band (e.g., a low frequency band cell) and the second type of cell may be associated with a second frequency band (e.g., a high frequency band cell). For example, the first policy information may indicate that a low frequency band cell (e.g., including the first cell) is permitted to be selected by the UE 120 as a serving cell for camping, and a high frequency band cell (e.g., including the second cell) is not permitted to be selected by the UE 120 as a serving cell for camping.
[0116] For RRM measurement, the second policy information may indicate that the cell of the first type is associated with the first priority level, and the cell of the second type is associated with the second priority level. For example, the first priority level may indicate a higher priority than the second priority level. Therefore, UE 120 may preferentially measure the low-frequency band cell, but may still measure the high-frequency band cell. Therefore, the first policy information may ensure that UE 120 selects the low-frequency band cell as the serving cell to reside in the RRC idle mode, and the second policy information may enable UE 120 to perform the measurement of the high-frequency band cell (e.g., RRM measurement) to obtain information associated with the high-frequency band cell when operating in the RRC idle mode. This may improve the communication performance of UE 120 in the RRC idle mode (e.g., by enabling UE 120 to reside on a cell with better coverage and / or higher reliability), while also enabling UE 120 to obtain the measurement of the high-frequency band cell, to reduce the delay associated with establishing an active connection with the high-frequency band cell when UE 120 transitions to the RRC connection mode.
[0117] UE 120 may select the first cell as a serving cell for RRC idle mode according to the configuration information. For example, UE 120 may reside on the first cell. UE 120 may monitor the paging communication sent via the first cell. In some aspects, such as when UE 120 is only allowed to select a low frequency band or an anchor cell as a serving cell, the network may cause the paging communication to be sent only via the low frequency band or the anchor cell. In other aspects, when UE 120 is allowed to select a high frequency band cell (such as a second cell) as a serving cell, the network may cause the paging communication to be sent via all possible cells of UE 120. For example, the network (e.g., a network node, a CU, a DU, or a core network node) may determine whether the high frequency band cell is located outside the coverage area of any low frequency band or anchor cell. If so, the network may configure a paging channel for the high frequency band cell, and may ensure that the paging notification for UE 120 is sent via all possible cells.
[0118] As indicated by reference numeral 625, UE 120 may perform one or more measurements (e.g., RRM measurements) of one or more cells while operating in RRC idle mode. For example, as described above, UE 120 may perform one or more RRM measurements according to the configuration information. For example, UE 120 may perform one or more measurements of a first cell (e.g., based at least in part on a signal sent via first network node 605) and / or one or more measurements of a second cell (e.g., based at least in part on a signal sent via second network node 610). UE 120 may perform one or more RRM measurements while camped on the first cell. For example, UE 120 may select the first cell as a serving cell in RRC idle mode (e.g., based on the configuration information).
[0119] As indicated by reference numeral 630, UE 120 may select a second cell from one or more cells associated with the one or more RRM measurements based at least in part on the one or more RRM measurements. For example, UE 120 may select the second cell to establish an active connection (e.g., an RRC connected mode connection). For example, UE 120 may determine that the measurement of the second cell satisfies one or more thresholds (e.g., indicated by a cell selection criterion) and / or that the measurement of the second cell is the highest measurement value obtained by UE 120 when performing RRM measurements.
[0120] As indicated by reference numeral 635, UE 120 may establish a connection with the second cell (e.g., based on selecting the second cell). In some aspects, UE 120 may establish a connection with the first cell (e.g., a serving cell) before establishing a connection with the second cell. For example, after establishing a connection with the first cell, UE 120 may be configured to perform measurements of the second cell (e.g., and other high-band cells) by the first cell and / or the first network node 605. UE 120 may report the measurement values to the first cell and / or the first network node 605. UE 120 may be handed over to the second cell based at least in part on the reported measurements (e.g., based at least in part on the measurement values of the second cell satisfying a threshold and / or being greater than (e.g., greater than a certain amount) the measurement values of the first cell).
[0121] In some other aspects, the UE 120 may establish a connection with the second cell without establishing a radio resource control connection for a connection with the first cell (e.g., a serving cell). For example, as described above, the UE 120 may perform measurements (e.g., RRM measurements) of the second cell when operating in the RRC idle mode. The UE 120 may select the second cell (when operating in the RRC idle mode) based at least in part on these measurements. The UE 120 may directly perform an initial access procedure (e.g., a RACH procedure) with the second cell. In other words, based at least in part on the RRM measurements performed by the UE 120 when operating in the RRC idle mode, the UE 120 may determine which cell of the low-band cell (e.g., the first cell) and the high-band cell (e.g., the second cell) evaluated by the UE 120 is the best for network access and RRC connection. The UE 120 may directly perform initial access with the selected cell (e.g., without performing a RACH procedure with the serving cell). This may enable UE 120 to quickly establish an active connection (eg, in RRC connected mode) with the cell associated with the best measurement value.
[0122] Thus, the UE 120 may be enabled to receive system information and / or reside on a cell associated with better coverage and / or higher reliability (e.g., a low-band cell, such as the first cell). The UE 120 may be enabled to reside on a cell with better coverage and / or higher reliability while still obtaining measurement information associated with other cells (e.g., high-band cells, such as the second cell). In addition, by enabling a cell associated with a first type of cell (e.g., a low-band cell, such as the first cell) to send system information associated with a cell associated with a second type of cell (e.g., a high-band cell, such as the second cell), the signaling overhead associated with system information signaling for heterogeneous network deployment may be reduced. In addition, because the first type of cell may be associated with better coverage and / or higher reliability (e.g., compared to the second type of cell), the reliability of the system information signaling and / or the likelihood that the UE 120 is enabled to receive system information for the second type of cell may be improved.
[0123] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.
[0124] Figure 7 is a diagram illustrating an example process 700 performed, for example, by a UE in accordance with the present disclosure. Example process 700 is an example of a UE (eg, UE 120) performing operations associated with idle mode enhancement for network deployment.
[0125] like Figure 7 As shown, in some aspects, process 700 may include receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurement (block 710). For example, a UE (e.g., using Fig. 9 The communication manager 140 and / or receiving component 902 depicted in FIG. 1 may receive configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurement, as described above.
[0126] like Figure 7 As further shown, in some aspects, process 700 may include, in idle mode, monitoring a broadcast channel associated with a first cell based at least in part on selecting the first cell according to the configuration information (block 720). Fig. 9 The communications manager 140 and / or monitoring component 908 depicted in FIG. 1 may monitor a broadcast channel associated with a first cell in an idle mode based at least in part on selecting the first cell according to the configuration information, as described above.
[0127] like Figure 7 As further shown, in some aspects, process 700 may include receiving system information associated with a second cell from a first cell (block 730). Fig. 9 The communication manager 140 and / or receiving component 902 depicted in FIG. 1 may receive system information associated with the second cell from the first cell, as described above.
[0128] like Figure 7 As further shown, in some aspects, process 700 may include establishing a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information (block 740). Fig. 9 The communication manager 140 and / or connection establishment component 910 depicted in FIG. 1 may establish a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information, as described above.
[0129] Process 700 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.
[0130] In a first aspect, the first policy information indicates that cells of a first type are permitted to be selected for monitoring a broadcast channel and cells of a second type are not permitted to be selected for monitoring a broadcast channel, and the second policy information indicates that for RRM measurements, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level.
[0131] In a second aspect, alone or in combination with the first aspect, cells of the first type are associated with a first frequency band and cells of the second type are associated with a second frequency band.
[0132] In a third aspect, alone or in combination with one or more of the first and second aspects, the system information associated with the second cell is first system information, and receiving the system information associated with the second cell includes receiving an indication of the first system information from the first cell as differential information relative to the second system information associated with the first cell.
[0133] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, a first cell is associated with a beam set, and receiving system information associated with a second cell includes receiving an indication of the system information from the first cell via a beam included in a beam subset from the beam set, wherein the beam subset is associated with a spatial direction toward the second cell relative to a position of the first cell.
[0134] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 700 includes receiving one or more system information sets associated with corresponding index values, and receiving system information associated with a second cell includes receiving from the first cell an indication of an index value from the corresponding index value, the index value being associated with a system information set including the system information from the one or more system information sets.
[0135] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the one or more system information sets are included in an initial attach communication, a radio resource control communication, or a tracking area update communication.
[0136] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the system information associated with the second cell is first system information, and process 700 includes receiving second system information associated with the second cell from the second cell after establishing the connection.
[0137] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the first system information is access control information including at least one of cell barring information or IFRI; and the access control information is received via a random access process with the first cell, and the random access process is configured to request system information.
[0138] In a ninth aspect, alone or in combination with one or more of aspects one to eight, establishing a connection includes performing one or more RRM measurements according to configuration information while residing on a first cell, selecting a second cell from one or more cells associated with the one or more RRM measurements based at least in part on the one or more RRM measurements, and establishing a connection with the second cell without establishing a radio resource control connection for the connection with the first cell.
[0139] although Figure 7 An example block diagram of process 700 is shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 700. Additionally or alternatively, two or more blocks of the blocks of process 700 may be performed in parallel.
[0140] Figure 8 is a diagram illustrating an example process 800 performed, for example, by a network node according to the present disclosure. The example process 800 is an example in which a network node (eg, the network node 110 and / or the first network node 605) performs operations associated with idle mode enhancement for network deployment.
[0141] like Figure 8As shown, in some aspects, process 800 may include receiving one or more system information sets associated with one or more cells associated with the network node or another network node (block 810). Fig.10 The communication manager 150 and / or receiving component 1002 depicted in FIG. 1 may receive one or more system information sets associated with one or more cells associated with the network node or another network node, as described above.
[0142] like Figure 8 As further shown, in some aspects, process 800 may include sending, via a first cell associated with the network node, system information from the one or more system information sets associated with a second cell from the one or more cells (block 820). Fig.10 The communication manager 150 and / or the sending component 1004 depicted in FIG. 1 may send system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node, as described above.
[0143] 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.
[0144] In a first aspect, process 800 includes sending configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurements.
[0145] In a second aspect, either alone or in combination with the first aspect, the first policy information indicates that cells of the first type are permitted to be selected for camping and cells of the second type are not permitted to be selected for camping, and the second policy information indicates that for RRM measurements, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level.
[0146] In a third aspect, alone or in combination with one or more of the first and second aspects, cells of the first type are associated with a first frequency band and cells of the second type are associated with a second frequency band.
[0147] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the system information associated with the second cell is first system information, and sending the system information associated with the second cell includes sending an indication of the first system information via the first cell as differential information relative to the second system information associated with the first cell.
[0148] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the network node is associated with a beam set available for transmission, and sending system information associated with the second cell includes an indication of sending the system information via a beam subset from the beam set, wherein the beam subset is associated with a spatial direction toward the second cell relative to the position of the first cell.
[0149] In a sixth aspect, either alone or in combination with one or more of aspects 1 to 5, process 800 comprises sending one or more possible system information sets associated with corresponding index values, and sending system information associated with a second cell comprises sending an indication of an index value from the corresponding index values via the first cell, the index value being associated with a system information set including the system information from the one or more possible system information sets.
[0150] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the one or more system information sets are included in an initial attach communication, a radio resource control communication, or a tracking area update communication.
[0151] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the system information associated with the second cell is first system information, and the second system information associated with the second cell is not sent via the first cell.
[0152] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the first system information includes at least one of cell barring information or IFRI.
[0153] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be performed in parallel.
[0154] Fig. 9is a diagram of an example apparatus 900 for wireless communication according to the present disclosure. Apparatus 900 may be a UE, or a UE may include apparatus 900. In some aspects, apparatus 900 includes a receiving component 902 and a transmitting component 904 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using receiving component 902 and transmitting component 904. As further shown, apparatus 900 may include a communication manager 140. Communication manager 140 may include one or more of a monitoring component 908 and / or a connection establishment component 910, among others.
[0155] In some aspects, the apparatus 900 may be configured to perform Figure 6 Additionally or alternatively, the apparatus 900 may be configured to perform one or more of the processes described herein (such as Figure 7 In some aspects, the apparatus 900 and / or Fig. 9 One or more of the components shown may include a combination of Figure 2 Additionally or alternatively, Fig. 9 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.
[0156] The receiving component 902 may receive communications from the device 906, such as reference signals, control information, data communications, or combinations thereof. The receiving component 902 may provide the received communications to one or more other components of the device 900. In some aspects, the receiving component 902 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 900. In some aspects, the receiving component 902 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.
[0157] Transmit component 904 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 906. In some aspects, one or more other components of device 900 may generate communications and may provide the generated communications to transmit component 904 for transmission to device 906. In some aspects, transmit component 904 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 device 906. In some aspects, transmit component 904 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 904 can be co-located with the receive component 902 in a transceiver.
[0158] The receiving component 902 may receive configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurements. The monitoring component 908 may monitor a broadcast channel associated with the first cell in idle mode based at least in part on selecting the first cell according to the configuration information. The receiving component 902 may receive system information associated with the second cell from the first cell. The connection establishing component 910 may establish a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
[0159] Transmitting component 904 and / or receiving component 902 can communicate one or more signals associated with establishing a connection with the second cell.
[0160] Receiving component 902 can receive one or more system information sets associated with respective index values.
[0161] Fig. 9 The number and arrangement of components shown are provided as examples. In practice, there may be Fig. 9 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig. 9 Two or more components shown may be implemented in a single component, or Fig. 9 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig. 9 The component set (one or more components) shown may be described as being executable by Fig. 9 Another component shown may be a collection of components that perform one or more functions.
[0162] Fig.101 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a network node, or a network node may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a sending component 1004 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and sending component 1004. As further shown, apparatus 1000 may include a communication manager 150. Communication manager 150 may include a determining component 1008, among other things.
[0163] In some aspects, the apparatus 1000 may be configured to perform Figure 6 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more of the processes described herein (such as Figure 8 In some aspects, Fig.10 The device 1000 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.10 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.
[0164] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1006. The receiving component 1002 may provide the received communications to one or more other components of the device 1000. In some aspects, the receiving component 1002 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1000. In some aspects, the receiving component 1002 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the described network nodes.
[0165] Transmit component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1006. In some aspects, one or more other components of device 1000 may generate communications and may provide the generated communications to transmit component 1004 for transmission to device 1006. In some aspects, transmit component 1004 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 1006. In some aspects, transmit component 1004 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.
[0166] The receiving component 1002 can receive one or more system information sets associated with one or more cells associated with the network node or another network node. The sending component 1004 can send system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node.
[0167] Transmitting component 1004 can transmit configuration information associated with a cell reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with RRM measurement.
[0168] A determining component 1008 can determine configuration information.
[0169] Transmitting component 1004 can transmit one or more possible system information sets associated with corresponding index values.
[0170] Fig.10 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.10 Two or more components shown may be implemented in a single component, or Fig.10 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 The component set (one or more components) shown may be described as being executable by Fig.10 Another component shown may be a collection of components that perform one or more functions.
[0171] The following provides an overview of some aspects of the disclosure:
[0172] Aspect 1: A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurements; monitoring a broadcast channel associated with the first cell in an idle mode based at least in part on selecting the first cell according to the configuration information; receiving system information associated with a second cell from the first cell; and establishing a connection with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
[0173] Aspect 2: A method according to Aspect 1, wherein the first policy information indicates that cells of a first type are permitted to be selected for monitoring the broadcast channel and cells of a second type are not permitted to be selected for monitoring the broadcast channel, and wherein the second policy information indicates that for the RRM measurement, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level.
[0174] Aspect 3: The method according to aspect 2, wherein the first type of cells are associated with a first frequency band, and the second type of cells are associated with a second frequency band.
[0175] Aspect 4: A method according to any one of Aspects 1-3, wherein the system information associated with the second cell is first system information, and wherein receiving the system information associated with the second cell includes: receiving an indication of the first system information from the first cell as differential information relative to the second system information associated with the first cell.
[0176] Aspect 5: A method according to any one of Aspects 1-4, wherein the first cell is associated with a beam set, and wherein receiving the system information associated with the second cell includes: receiving an indication of the system information from the first cell via a beam included in a beam subset in the beam set, wherein the beam subset is associated with a spatial direction toward the second cell relative to the position of the first cell.
[0177] Aspect 6: According to the method described in any one of Aspects 1-5, the method further includes: receiving one or more system information sets associated with corresponding index values, and wherein receiving the system information associated with the second cell includes: receiving an indication of an index value from the corresponding index value from the first cell, the index value being associated with a system information set including the system information from the one or more system information sets.
[0178] Aspect 7: The method according to aspect 6, wherein the one or more system information sets are included in an initial attach communication, a radio resource control communication, or a tracking area update communication.
[0179] Aspect 8: The method according to any one of aspects 1-7, wherein the system information associated with the second cell is first system information, and the method further includes: after establishing the connection, receiving second system information associated with the second cell from the second cell.
[0180] Aspect 9: A method according to Aspect 8, wherein the first system information is access control information, the access control information includes at least one of the following: cell barring information or intra-frequency reselection indication (IFRI); and wherein the access control information is received via a random access process with the first cell, the random access process being configured to request system information.
[0181] Aspect 10: A method according to any one of Aspects 1-9, wherein establishing the connection includes: while residing on the first cell, performing the one or more RRM measurements according to the configuration information; selecting the second cell from one or more cells associated with the one or more RRM measurements based at least in part on the one or more RRM measurements; and establishing the connection with the second cell without establishing a radio resource control connection with the first cell.
[0182] Aspect 11: A method of wireless communication performed by a device of a network node, the method comprising: receiving one or more system information sets associated with one or more cells, the one or more cells being associated with the network node or another network node; and sending system information associated with a second cell from the one or more cells from the one or more system information sets via a first cell associated with the network node.
[0183] Aspect 12: The method according to aspect 11 further comprises: sending configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurement.
[0184] Aspect 13: A method according to Aspect 12, wherein the first policy information indicates that cells of a first type are permitted to be selected for residence and cells of a second type are not permitted to be selected for residence, and wherein the second policy information indicates that for the RRM measurement, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level.
[0185] Aspect 14: The method according to aspect 13, wherein the first type of cells are associated with a first frequency band and the second type of cells are associated with a second frequency band.
[0186] Aspect 15: A method according to any one of Aspects 11-14, wherein the system information associated with the second cell is first system information, and wherein sending the system information associated with the second cell includes: sending an indication of the first system information via the first cell as differential information relative to the second system information associated with the first cell.
[0187] Aspect 16: A method according to any one of Aspects 11-15, wherein the network node is associated with a beam set that can be used for transmission, and wherein sending the system information associated with the second cell includes: sending an indication of the system information via a beam subset from the beam set, wherein the beam subset is associated with a spatial direction toward the second cell relative to the position of the first cell.
[0188] Aspect 17: According to the method described in any one of Aspects 11-16, the method further includes: sending one or more possible system information sets associated with corresponding index values, and wherein sending the system information associated with the second cell includes: sending an indication of an index value from the corresponding index value via the first cell, the index value being associated with a system information set including the system information from the one or more possible system information sets.
[0189] Aspect 18: The method according to aspect 17, wherein the one or more system information sets are included in an initial attach communication, a radio resource control communication, or a tracking area update communication.
[0190] Aspect 19: The method according to any one of aspects 11-18, wherein the system information associated with the second cell is first system information, and wherein the second system information associated with the second cell is not transmitted via the first cell.
[0191] Aspect 20: The method according to aspect 19, wherein the first system information comprises at least one of the following: cell barring information or intra-frequency reselection indication (IFRI).
[0192] Aspect 21: 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 10.
[0193] Aspect 22: 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 execute the method according to one or more of aspects 1 to 10.
[0194] Aspect 23: 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 10.
[0195] Aspect 24: 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 10.
[0196] Aspect 25: 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 10.
[0197] Aspect 26: 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 11 to 20.
[0198] Aspect 27: 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 execute the method according to one or more of aspects 11 to 20.
[0199] Aspect 28: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 11 to 20.
[0200] Aspect 29: 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 11 to 20.
[0201] Aspect 30: 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 11 to 20.
[0202] 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 above disclosure or may be acquired from practice of the various aspects.
[0203] 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.
[0204] 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.
[0205] 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).
[0206] 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 items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected 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 items, 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, "an element with" A can also have B). In addition, the phrase "based on" is intended to represent "based at least in part on", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and 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, the one or more processors being coupled to the memory and configured to cause the UE to: receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurements; monitoring a broadcast channel associated with the first cell in an idle mode based at least in part on selecting the first cell according to the configuration information; receiving, from the first cell, system information associated with a second cell; as well as A connection is established with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
2. The UE according to claim 1, wherein the first policy information indicates that cells of a first type are permitted to be selected for monitoring the broadcast channel, and cells of a second type are not permitted to be selected for monitoring the broadcast channel, and The second policy information indicates that for the RRM measurement, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level. 3 . The UE of claim 2 , wherein the first type of cells are associated with a first frequency band, and the second type of cells are associated with a second frequency band.
4. The UE of claim 1 , wherein the system information associated with the second cell is first system information, and wherein the one or more processors that cause the UE to receive the system information associated with the second cell are configured to cause the UE to: An indication of the first system information is received from the first cell as differential information relative to second system information associated with the first cell.
5. The UE of claim 1, wherein the first cell is associated with a beam set, and wherein the one or more processors that cause the UE to receive the system information associated with the second cell are configured to cause the UE to: An indication of the system information is received from the first cell via a beam included in a subset of beams from the set of beams, wherein the subset of beams is associated with a spatial direction towards the second cell relative to a location of the first cell.
6. The UE of claim 1, wherein the one or more processors are further configured to cause the UE to: receiving one or more system information sets associated with corresponding index values, and The one or more processors that cause the UE to receive the system information associated with the second cell are configured to cause the UE to: An indication of an index value from among the corresponding index values is received from the first cell, the index value being associated with a system information set from among the one or more system information sets including the system information. 7 . The UE of claim 6 , wherein the one or more system information sets are included in an initial attach communication, a radio resource control communication, or a tracking area update communication.
8. The UE of claim 1 , wherein the system information associated with the second cell is first system information, and wherein the one or more processors are further configured to cause the UE to: After establishing the connection, second system information associated with the second cell is received from the second cell.
9. The UE according to claim 8, wherein the first system information is access control information, and the access control information includes at least one of the following: Cell barring information, or Intra-Frequency Reselection Indication (IFRI); and The access control information is received via a random access procedure with the first cell, and the random access procedure is configured to request system information.
10. The UE of claim 1, wherein the one or more processors that cause the UE to establish the connection are configured to cause the UE to: while camping on the first cell, performing the one or more RRM measurements according to the configuration information; selecting the second cell from one or more cells associated with the one or more RRM measurements based at least in part on the one or more RRM measurements; as well as The connection with the second cell is established without establishing a radio resource control connection for the connection with the first cell.
11. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory and configured to cause the network node to: receiving one or more system information sets associated with one or more cells, The one or more cells are associated with the network node or another network node; as well as System information from the one or more system information sets associated with a second cell from the one or more cells is sent via a first cell associated with the network node.
12. The network node of claim 11, wherein the one or more processors are further configured to cause the network node to: Configuration information associated with a cell selection or reselection procedure is transmitted, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurement.
13. The network node according to claim 12, wherein the first policy information indicates that cells of a first type are permitted to be selected for camping and cells of a second type are not permitted to be selected for camping, and The second policy information indicates that for the RRM measurement, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level.
14. The network node of claim 11, wherein the system information associated with the second cell is first system information, and wherein the one or more processors that cause the network node to send the system information associated with the second cell are configured to cause the network node to: The indication of the first system information is sent via the first cell as differential information relative to second system information associated with the first cell.
15. The network node of claim 11, wherein the network node is associated with a beam set available for transmission, and wherein the one or more processors that cause the network node to transmit the system information associated with the second cell are configured to cause the network node to: The indication of the system information is sent via a subset of beams from the set of beams, wherein the subset of beams is associated with a spatial direction towards the second cell relative to a location of the first cell.
16. A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving configuration information associated with a cell selection or reselection procedure, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurements; monitoring a broadcast channel associated with the first cell in an idle mode based at least in part on selecting the first cell according to the configuration information; receiving, from the first cell, system information associated with a second cell; as well as A connection is established with the second cell based at least in part on the system information and one or more RRM measurements performed according to the configuration information.
17. The method according to claim 16, wherein the first policy information indicates that cells of a first type are permitted to be selected for monitoring the broadcast channel and cells of a second type are not permitted to be selected for monitoring the broadcast channel, and The second policy information indicates that for the RRM measurement, cells of the first type are associated with a first priority level and cells of the second type are associated with a second priority level.
18. The method of claim 17, wherein the cells of the first type are associated with a first frequency band and the cells of the second type are associated with a second frequency band.
19. The method of claim 16, wherein the system information associated with the second cell is first system information, and wherein receiving the system information associated with the second cell comprises: An indication of the first system information is received from the first cell as differential information relative to second system information associated with the first cell.
20. The method of claim 16, wherein the first cell is associated with a beam set, and wherein receiving the system information associated with the second cell comprises: An indication of the system information is received from the first cell via a beam included in a subset of beams from the set of beams, wherein the subset of beams is associated with a spatial direction towards the second cell relative to a location of the first cell.
21. The method according to claim 16, further comprising: receiving one or more system information sets associated with corresponding index values, and Wherein receiving the system information associated with the second cell comprises: An indication of an index value from among the corresponding index values is received from the first cell, the index value being associated with a system information set from among the one or more system information sets including the system information.
22. The method of claim 21, wherein the one or more system information sets are included in an initial attach communication, a radio resource control communication, or a tracking area update communication.
23. The method of claim 16, wherein the system information associated with the second cell is first system information, the method further comprising: After establishing the connection, second system information associated with the second cell is received from the second cell.
24. The method according to claim 23, wherein the first system information is access control information, and the access control information includes at least one of the following: Cell barring information, or Intra-Frequency Reselection Indication (IFRI); and The access control information is received via a random access procedure with the first cell, and the random access procedure is configured to request system information.
25. The method of claim 16, wherein establishing the connection comprises: while camping on the first cell, performing the one or more RRM measurements according to the configuration information; selecting the second cell from one or more cells associated with the one or more RRM measurements based at least in part on the one or more RRM measurements; as well as The connection with the second cell is established without establishing a radio resource control connection for the connection with the first cell.
26. A method of wireless communication performed by an apparatus of a network node, the method comprising: receiving one or more system information sets associated with one or more cells associated with the network node or another network node; as well as System information from the one or more system information sets associated with a second cell from the one or more cells is sent via a first cell associated with the network node.
27. The method according to claim 26, further comprising: Configuration information associated with a cell selection or reselection procedure is transmitted, the configuration information indicating first policy information associated with cell selection and second policy information associated with radio resource management (RRM) measurement.
28. The method of claim 26, wherein the network node is associated with a beam set available for transmission, and wherein transmitting the system information associated with the second cell comprises: The indication of the system information is sent via a subset of beams from the set of beams, wherein the subset of beams is associated with a spatial direction towards the second cell relative to a location of the first cell.
29. The method according to claim 26, further comprising: sending one or more possible system information sets associated with the corresponding index value, and The sending of the system information associated with the second cell includes: An indication of an index value from among the corresponding index values is sent via the first cell, the index value being associated with a system information set including the system information from among the one or more possible system information sets.
30. The method of claim 26, wherein the system information associated with the second cell is first system information, and wherein second system information associated with the second cell is not transmitted via the first cell.