Cell reselection
By transmitting capability-related information and intra-frequency cell reselection indications in MIB and SIB1, the network nodes facilitate efficient cell reselection for UE with multiple capabilities, addressing the challenges of unclear indications and improving network efficiency.
Patent Information
- Application Number
- PCT/CN2024/104776
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-30
AI Technical Summary
Existing wireless communication systems face challenges in efficiently supporting cell reselection, particularly for user equipment (UE) with multiple capabilities, as they lack clear indications for intra-frequency cell reselection in Master Information Block (MIB) and System Information Block Type 1 (SIB1).
The proposed solution involves network nodes transmitting information related to multiple capabilities and intra-frequency cell reselection indications to UE, allowing the UE to determine whether to perform intra-frequency cell reselection based on indications in MIB or SIB1, taking into account priority settings for different capabilities.
This approach enables UE to effectively perform intra-frequency cell reselection, even when the target cell is barred, by utilizing clear indications and priority settings, thereby improving network efficiency and user experience.
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Figure CN2024104776_30052025_PF_FP_ABST
Abstract
Description
CELL RESELECTIONTECHNICAL FIELD
[0001] The present disclosure relates to wireless communications, and more specifically to network nodes, user equipment (UE) , and methods for supporting cell reselection.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as UE, or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
[0003] In Release 18, network energy saving (NES) technologies have been discussed and the conclusions achieved consider only in radio resource control (RRC) _CONNECTED state of a UE. For Release 19 NES topic, on-demand system information block type 1 (SIB1) is under discussion. It has been agreed that a random access channel (RACH) procedure is reused for the UE to request on-demand SIB1, also it has been agreed that after the UE successfully receives on-demand SIB1 for an NES cell and if it is a suitable cell, the UE camps on the NES cell similar to a legacy cell. The agreements provide the possibility for the NES UE (e.g. supporting on-demand SIB1 and so on) to support (enhanced) reduced capability (e) RedCap. In other words, it is possible for an (e) RedCap UE to reselect an NES cell.SUMMARY
[0004] The present disclosure relates to network nodes, UE, and methods for supporting cell reselection. With the present disclosure, the UE may determine whether to perform intra-frequency cell reselection based on an intra-frequency cell reselection indication in MIB or an intra-frequency cell reselection indication in SIB1.
[0005] Some implementations of a network node described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: transmit, via the transceiver, information related to each of multiple capability or related to the multiple capabilities; and transmit, via the transceiver, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0006] In some implementations, the multiple capabilities are associated with one or more of the following: network energy saving (NES) , non-terrestrial network (NTN) , very small aperture terminal (VSAT) , reduced capability (RedCap) , enhanced reduced capability (eRedCap) , two antenna port eXtended Reality (2Rx XR) , air-to-ground (ATG) , or half-duplex frequency division duplex RedCap.
[0007] In some implementations, the information related to the multiple capabilities comprises at least one indication, each of the at least one indication indicates that a combination of at least part of the multiple capabilities is supported.
[0008] In some implementations, each of the at least one intra-frequency cell reselection indication is related to a combination of at least part of the multiple capabilities.
[0009] In some implementations, the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one or more of the at least one intra-frequency cell reselection indication.
[0010] In some implementations, the at least one intra-frequency cell reselection indication comprises a first intra-frequency cell reselection indication in master information block (MIB) and at least one second intra-frequency cell reselection indication in system information block type 1 (SIB1) . In such implementations, the at least one priority comprises a first priority related to the first intra-frequency cell reselection in MIB and a second priority related to the at least one second intra-frequency cell reselection indication in SIB1.
[0011] In some implementations, the at least one intra-frequency cell reselection indication comprises a first intra-frequency cell reselection indication in MIB and at least one second intra-frequency cell reselection indication in SIB1. In such implementations, the at least one priority comprises multiple priorities, each of the multiple priorities is related to the first intra-frequency cell reselection indication in MIB or one of the at least one second intra-frequency cell reselection indication in SIB1.
[0012] In some implementations, the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one of the multiple capabilities.
[0013] In some implementations, each of the at least one intra-frequency cell reselection indication is related to one of the multiple capabilities.
[0014] In some implementations, the processor is further configured to: transmit a first indication indicating that the information is transmitted for a first cell.
[0015] In some implementations, the information comprises a second indication indicating that a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication is to be used by the UE.
[0016] Some implementations of a UE described herein may include a processor and a transceiver coupled to the processor. The processor is configured to: receive, via the transceiver from a network node, information related to each of multiple capabilities or related to the multiple capabilities; receive, via the transceiver from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities; determine whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.
[0017] In some implementations, the multiple capabilities are associated with one or more of the following: NES, NTN, VSAT, RedCap, eRedCap, 2Rx XR, ATG, or half-duplex frequency division duplex RedCap.
[0018] In some implementations, the information related to the multiple capabilities comprises at least one indication, each of the at least one indication indicates that a combination of at least part of the multiple capabilities is supported.
[0019] In some implementations, each of the at least one intra-frequency cell reselection indication is related to a combination of at least part of the multiple capabilities.
[0020] In some implementations, the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one or more of the at least one intra-frequency cell reselection indication.
[0021] In some implementations, the at least one intra-frequency cell reselection indication comprises a first intra-frequency cell reselection indication in MIB and at least one second intra-frequency cell reselection indication in SIB1. In such implementations, the at least one priority comprises a first priority related to the first intra-frequency cell reselection in MIB and a second priority related to the at least one second intra-frequency cell reselection indication in SIB1.
[0022] In some implementations, the processor is configured to determine whether to perform intra-frequency cell reselection by: based on determining that the first priority is higher than the second priority, determining whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection in MIB; and based on determining that the first priority is lower than the second priority, determining whether to perform the intra-frequency cell reselection based on one of the at least one second intra-frequency cell reselection indication in SIB1.
[0023] In some implementations, the at least one intra-frequency cell reselection indication comprises a first intra-frequency cell reselection indication in MIB and at least one second intra-frequency cell reselection indication in SIB1. In such implementations, the at least one priority comprises multiple priorities, each of the multiple priorities is related to the first intra-frequency cell reselection indication in MIB or one of the at least one second intra-frequency cell reselection indication in SIB1.
[0024] In some implementations, the processor is configured to determine whether to perform intra-frequency cell reselection by: based on determining that the first intra-frequency cell reselection indication in MIB has a highest priority among the multiple priorities, determining whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection indication in MIB; and based on determining that one of the at least one second intra-frequency cell reselection indication in SIB1 has the highest priority among the multiple priorities, determining whether to perform the intra-frequency cell reselection based on the one of the at least one second intra-frequency cell reselection indication in SIB1.
[0025] In some implementations, the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one of the multiple capabilities.
[0026] In some implementations, each of the at least one intra-frequency cell reselection indication is related to one of the multiple capabilities.
[0027] In some implementations, the processor is configured to determine whether to perform intra-frequency cell reselection by: based on determining that a first capability among the multiple capabilities has a highest priority or a lowest priority among the at least one priority, determining whether to perform the intra-frequency cell reselection based on a third intra-frequency cell reselection indication related to the first capability.
[0028] In some implementations, the processor is further configured to: receive, from the network node, a first indication indicating that the information is transmitted for a first cell.
[0029] In some implementations, the information comprises a second indication indicating that a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication is to be used by the UE. In such implementations, the processor is configured to determine whether to perform intra-frequency cell reselection based on the first intra-frequency cell reselection indication.
[0030] In some implementations, the processor is further configured to: select a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication based on predefinition. In such implementations, the processor is configured to determine whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection indication.
[0031] Some implementations of a first network node described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: transmit, via the transceiver to a second network node, information related to each of multiple capabilities or related to the multiple capabilities; and transmit, via the transceiver to the second network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0032] Some implementations of a second network node described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: receive, via the transceiver from a first network node, information related to each of multiple capabilities or related to the multiple capabilities; and receive, via the transceiver from the first network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0033] Some implementations of a method described herein may include: transmitting information related to each of multiple capability or related to the multiple capabilities; and transmitting at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0034] Some implementations of a method described herein may include: receiving, from a network node, information related to each of multiple capabilities or related to the multiple capabilities; receiving, from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities; and determining whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.
[0035] Some implementations of a method described herein may include: transmitting, to a second network node, information related to each of multiple capabilities or related to the multiple capabilities; and transmitting, to the second network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0036] Some implementations of a method described herein may include: receiving, from a first network node, information related to each of multiple capabilities or related to the multiple capabilities; and receiving, from the first network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0037] Some implementations of a processor described herein may include at least one memory and a controller coupled with the at least one memory and configured to cause the controller to: receive, via the transceiver from a network node, information related to each of multiple capabilities or related to the multiple capabilities; receive, via the transceiver from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities; and determine whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.
[0038] It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0039] Fig. 1 illustrates an example of a wireless communications system that supports cell reselection in accordance with aspects of the present disclosure;
[0040] Fig. 2 illustrates a signaling chart illustrating an example process that supports cell reselection in accordance with aspects of the present disclosure;
[0041] Fig. 3 illustrates an example of a device that supports cell reselection in accordance with some aspects of the present disclosure;
[0042] Fig. 4 illustrates an example of a processor that supports cell reselection in accordance with aspects of the present disclosure; and
[0043] Figs. 5, 6, 7 and 8 illustrate a flowchart of a method that supports cell reselection in accordance with aspects of the present disclosure, respectively.DETAILED DESCRIPTION
[0044] Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein may be implemented in various manners other than the ones described below.
[0045] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0046] References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0047] It shall be understood that although the terms “first” and “second” or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0048] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.
[0049] As described above, it is possible for an (e) RedCap UE to reselect an NES cell. The NES UE or (e) RedCap UE may determine whether another cell on the same frequency can be selected based on MIB or SIB1.
[0050] It is assumed that an NES UE is also a RedCap 1Rx UE, and the UE considers a cell status is "barred" . An intra-frequency cell reselection indication in SIB1 is considered as an intra-frequency cell reselection indication in MIB from the perspective of RedCap UE. For the other capability that the UE supports, e.g. NES, an intra-frequency cell reselection indication in MIB is used when the UE performs cell reselection. It needs to study which one of the intra-frequency cell reselection indication in MIB and the intra-frequency cell reselection indication in SIB1 is used by the UE with multiple capabilities when a cell to be camped on is barred.
[0051] In view of the above, the present disclosure provides a solution that supports cell reselection. According to this solution, a network node transmits information related to each of multiple capabilities or related to the multiple capabilities. In turn, the network node transmits at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. With this solution, the UE may determine whether to perform intra-frequency cell reselection based on an intra-frequency cell reselection indication in MIB or an intra-frequency cell reselection indication in SIB1.
[0052] Aspects of the present disclosure are described in the context of a wireless communications system.
[0053] Fig. 1 illustrates an example of a wireless communications system 100 that supports cell reselection in accordance with aspects of the present disclosure. The wireless communications system 100 may include one at least one of network entities 102 (also referred to as network equipment (NE) ) , one or more terminal devices or UEs 104, a core network 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0054] The network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station (BS) , a network element, a radio access network (RAN) node, a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface. Hereinafter, some implementations of the present disclosure will be described by taking a network node as an example of the network entity 102. Thus, the network entity 102 may be used interchangeably with the network node 102.
[0055] A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and capabilities. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0056] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an internet-of-things (IoT) device, an internet-of-everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.
[0057] The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in Fig. 1. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in Fig. 1. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
[0058] A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0059] A network entity 102 may support communications with the core network 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
[0060] In some implementations, the network entity 102 may be implemented as a satellite. For example, the network entity 102-1 may be implemented as a satellite. Thus, network entity 102-1 is also referred to as a satellite 102-1. The network entity 102-1 may have full or part of an eNB / gNB on board. The communication link 110 between the satellite 102-1 and the UE 104, the communication link 116 between the satellite 102-1 and the network entity 102, and the communication link 116 between the satellite 102-1 and the core network 106 may be used for a non-terrestrial network (NTN) transparent mode. The communication link 110 between the satellite 102-1 and the UE 104, and the communication link 116 between the satellite 102-1 (with a base station on board) and the core network 106 may be used for a NTN regenerative mode.
[0061] In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open radio access network (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN intelligent controller (RIC) (e.g., a near-real time RIC (Near-RT RIC) , a non-real time RIC (Non-RT RIC) ) , a service management and orchestration (SMO) system, or any combination thereof.
[0062] An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0063] Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaption protocol (SDAP) , packet data convergence protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160.
[0064] Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
[0065] A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
[0066] The core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a packet data network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
[0067] The core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102. The core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
[0068] In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0069] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.
[0070] A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0071] Additionally or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.
[0072] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (510 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0073] FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.
[0074] Fig. 2 illustrates a signaling chart illustrating an example process 200 that supports cell reselection in accordance with aspects of the present disclosure. The process 200 may involve the network node 102 and the UE 104 in Fig. 1.
[0075] As shown in Fig. 2, the network node 102 transmits 210 information related to each of multiple capabilities or related to the multiple capabilities. Accordingly, the UE 104 receives, from the network node 102, the information related to each of multiple capabilities or related to the multiple capabilities.
[0076] In turn, the network node 102 transmits 220 at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. Accordingly, the UE 104 receives, from the network node 102, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0077] Then, the UE 104 determines 230 whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.
[0078] In some implementations, based on at least one of the information or the at least one intra-frequency cell reselection indication, the UE 104 may determine whether to perform reselection to intra-frequency cells when the highest ranked cell is barred or treated as barred by the UE 104. The highest ranked cell is a cell to be camped on by the UE 104. Hereinafter, the highest ranked cell or a cell to be camped on by the UE 104 is also referred to as a cell B for brevity.
[0079] For example, based on at least one of the information or the at least one intra-frequency cell reselection indication, the UE 104 may determine whether another cell (such as a cell C) on the same frequency as the cell B can be selected when the cell B is barred or treated as barred by the UE 104.
[0080] In the present disclosure, the term “capability” may be used interchangeably with one of the following: “technology” , “technique” , “feature” , or “character” .
[0081] In some implementations, the multiple capabilities are associated with one or more of the following: NES, non-terrestrial network (NTN) , very small aperture terminal (VSAT) UE (including fixed VSAT UE and mobile VSAT UE) , reduced capability (RedCap) (including a RedCap UE with 1 Rx branch and a RedCap UE with 2 Rx branches) , eRedCap (including an eRedCap UE with 1 Rx branch and eRedCap UE with 2 Rx branches) , two antenna port eXtended Reality (2Rx XR) , air-to-ground (ATG) , or half-duplex frequency division duplex (FDD) RedCap.
[0082] In some implementations, NES technologies for the purpose of network energy savings may comprise at least one of the following: NES technologies applied in RRC_CONNECTED state of the UE 104, NES technologies applied in RRC_IDLE state of the UE 104, or NES technologies applied in RRC_INACTIVE state of the UE 104.
[0083] In some implementations, NES technologies for the purpose of network energy savings may comprise at least one of the following: cell discontinuous transmission (DTX) / discontinuous reception (DRX) , on-demand synchronization signal block (SSB) , on-demand SIB1, adaptation of physical random access channel (PRACH) , or adaptation of paging occasions (which may include confining the paging occasions in the time domain) .
[0084] Hereinafter, cell DTX / DRX is also referred to as nes-CellDTX-DRX.
[0085] In some implementations, to facilitate reducing gNB downlink transmission / uplink reception active time, the UE 104 can be configured with a periodic cell DTX / DRX pattern (i.e. active and non-active periods) . The pattern configuration for cell DTX / DRX is common for the UEs configured with this feature in the cell. The cell DTX and cell DRX patterns can be configured and activated separately. A maximum of two cell DTX / DRX patterns can be configured per MAC entity for different serving cells. When cell DTX is configured and activated for the concerned cell, the UE may not monitor PDCCH in selected cases or does not monitor semi-persistent scheduling (SPS) occasions during cell DTX non-active duration. When cell DRX is configured and activated for the concerned cell, the UE does not transmit on CG resources or does not transmit a scheduling request (SR) during cell DRX non-active duration. This feature is only applicable to UEs in RRC_CONNECTED state and it does not impact Random Access procedure, SSB transmission, paging, and system information broadcasting. Cell DTX / DRX operation is only supported for single TRP scenario. Cell DTX / DRX can be activated / deactivated by RRC signalling or L1 group common signalling. Cell DTX / DRX is characterized by the following:
[0086] - active duration: duration that the UE waits for to receive PDCCHs or SPS occasions, and transmit SR or CG. In this duration, the gNB transmission / reception of PDCCH, SPS, SR, CG, periodic and semi-persistent CSI report are not impacted for the purpose of network energy saving;
[0087] - cycle: specifies the periodic repetition of the active-duration followed by a period of non-active duration.
[0088] Active duration and cycle parameters are common between cell DTX and cell DRX, when both are configured;
[0089] Once the network node 102 recognizes there is an emergency call or public safety related service (e.g. multimedia priority service (MPS) or mission critical service (MCS) ) , the network should ensure that there is no impact to that service (e.g. it may release or deactivate cell DTX / DRX configuration) . The network should also ensure that there is at least partial overlapping between UE's connected mode DRX on-duration and cell DTX / DRX active duration, i.e. the UE's connected mode DRX periodicity is a multiple of cell DTX / DRX periodicity or vice versa.
[0090] In some implementations, the on-demand SSB may refer to SSB which is not broadcast periodically to save the network energy while it can be transmitted after the UE 104 transmits a request for the SSB.
[0091] In some implementations, the on-demand SIB1 may refer to SIB1 which is not broadcast periodically to save the network energy while it can be transmitted after the UE 104 transmits a request for the SIB1.
[0092] In some implementations, the multiple capabilities may comprise one or more capabilities supported by the cell B or all possible capabilities including one or more capabilities which are not supported by the cell B.
[0093] In some implementations, the multiple capabilities may comprise one or more capabilities supported by the UE 104.
[0094] In some implementations, the information related to the multiple capabilities may comprise at least one indication. Each of the at least one indication indicates that a combination of at least part of the multiple capabilities is supported. In such implementations, each of the at least one intra-frequency cell reselection indication is related to a combination of at least part of the multiple capabilities.
[0095] Consider a first example. In the first example, the multiple capabilities may comprise NES, RedCap, nes-CellDTX-DRX, and 2RX XR. The information related to the multiple capabilities may comprise a first indication indicating that a first combination of NES and RedCap is supported by one or more UEs, a second indication indicating that a second combination of RedCap and nes-CellDTX-DRX is supported by one or more UEs, and a third indication indicating that a third combination of 2RX XR and nes-CellDTX-DRX is supported by one or more UEs. The at least one intra-frequency cell reselection indication may comprise a first intra-frequency cell reselection indication related to the first combination of NES and RedCap, a second intra-frequency cell reselection indication related to the second combination of RedCap and nes-CellDTX-DRX, and a third intra-frequency cell reselection indication related to the third combination of 2RX XR and nes-CellDTX-DRX. Alternatively, the first intra-frequency cell reselection indication may be related to the first indication. Alternatively, the second intra-frequency cell reselection indication may be related to the second indication. Alternatively, the third intra-frequency cell reselection indication may be related to the third indication.
[0096] For example, the first intra-frequency cell reselection indication related to the first combination of NES and RedCap may be included in a field “intraFreqReselection-NES-RedCap-r19” having enumerated values {allowed, notAllowed} .
[0097] In the first example, if the UE 104 supports NES and RedCap, the UE 104 may determine whether to perform intra-frequency cell reselection based on the first intra-frequency cell reselection indication related to the first combination of NES and RedCap or related to the first indication. If the first intra-frequency cell reselection indication is set to “allowed” , it indicates that the UE 104 supporting NES and RedCap is allowed to perform intra-frequency cell reselection. Thus, the UE 104 may determine to perform the intra-frequency cell reselection. On the other hand, if the first intra-frequency cell reselection indication is set to “notAllowed” , it indicates that the UE 104 supporting NES and RedCap is not allowed to perform intra-frequency cell reselection. Thus, the UE 104 may determine not to perform the intra-frequency cell reselection.
[0098] In some implementations, if the at least one intra-frequency cell reselection indication is included in SIB1, the UE 104 may consider “intraFreqReselection” in MIB to be one of the at least one intra-frequency cell reselection indication in SIB1. For example, in the first example, if the UE 104 supports NES and RedCap and the first intra-frequency cell reselection indication is included in SIB1, the UE 104 may consider “intraFreqReselection” in MIB to be the first intra-frequency cell reselection indication in SIB1. That is, the UE 104 may consider a value in a field “intraFreqReselection” in MIB to be a value of the first intra-frequency cell reselection indication in SIB1.
[0099] In some implementations, if the at least one intra-frequency cell reselection indication is not present, the UE 104 may treat the cell B as barred, i.e., the UE 104 may consider that the cell B does not support a UE with the combination of at least part of the multiple capabilities. For example, in the first example, if the UE 104 supports NES and RedCap and the first intra-frequency cell reselection indication is not included in SIB1, the UE 104 may treat the cell B as barred, i.e., the UE 104 may consider that the cell B does not support a UE with the combination of NES and RedCap.
[0100] In some implementations, the information related to each of multiple capabilities may comprise at least one priority. Each of the at least one priority is related to one or more of the at least one intra-frequency cell reselection indication. In such implementations, the at least one intra-frequency cell reselection indication may comprise a first intra-frequency cell reselection indication in MIB and at least one second intra-frequency cell reselection indication in SIB1. The at least one priority may comprise a first priority related to the first intra-frequency cell reselection in MIB and a second priority related to the at least one second intra-frequency cell reselection indication in SIB1. If the first priority is higher than the second priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection in MIB. On the other hand, if the first priority is lower than the second priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on one of the at least one second intra-frequency cell reselection indication in SIB1.
[0101] In some implementations, an increasing priority value may indicate a lower priority level. Alternatively, a decreasing priority value may indicate a lower priority level.
[0102] Consider a second example. In the second example, the multiple capabilities may comprise NES, RedCap, and 2RX XR. The information related to each of multiple capabilities may comprise a first priority related to a first intra-frequency cell reselection indication in MIB, and a second priority related to a second intra-frequency cell reselection indication and a third intra-frequency cell reselection indication in SIB1. The first intra-frequency cell reselection indication in MIB is related to NES and included in a field “intraFreqReselection” . The second intra-frequency cell reselection indication in SIB is related to RedCap and included in a field “intraFreqReselectionRedCap” . The third intra-frequency cell reselection indication in SIB1 is related to 2RX XR and included in a field “intraFreqReselection2RxXR” .
[0103] In the second example, if the first priority is higher than the second priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on a value of the field “intraFreqReselection” in MIB.
[0104] On the other hand, if the first priority is lower than the second priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on a value in the field “intraFreqReselectionRedCap” in SIB1 or a value in the field “intraFreqReselection2RxXR” in SIB1. The UE 104 may consider “intraFreqReselection” in MIB to be “intraFreqReselectionRedCap” or “intraFreqReselection2RxXR” in SIB1. That is, the UE 104 may consider the value in the filed “intraFreqReselection” in MIB to be the value in the filed “intraFreqReselectionRedCap” or the value in the filed “intraFreqReselection2RxXR” in SIB1.
[0105] Alternatively, in some implementations, the information related to each of multiple capabilities may comprise at least one priority. Each of the at least one priority is related to one or more of the at least one intra-frequency cell reselection indication. In such implementations, the at least one intra-frequency cell reselection indication may comprise a first intra-frequency cell reselection indication in MIB and at least one second intra-frequency cell reselection indication in SIB1. The at least one priority may comprise multiple priorities. Each of the multiple priorities is related to the first intra-frequency cell reselection indication in MIB or a respective one of the at least one second intra-frequency cell reselection indication in SIB1. In such implementations, if the first intra-frequency cell reselection indication in MIB has a highest priority among the multiple priorities, the UE 104 may determine whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection indication in MIB. On the other hand, if one of the at least one second intra-frequency cell reselection indication in SIB1 has the highest priority among the multiple priorities, the UE 104 may determine whether to perform the intra-frequency cell reselection based on the one of the at least one second intra-frequency cell reselection indication in SIB1. It shall be noted that a single intra-frequency cell reselection indication in SIB1 will not be related to more than one different priorities.
[0106] Consider a third example. In the third example, the multiple capabilities may comprise NES, RedCap, and 2RX XR. The information related to each of multiple capabilities may comprise a first priority related to a first intra-frequency cell reselection indication in MIB, a second priority related to a second intra-frequency cell reselection indication in SIB1 and a third priority related to a third intra-frequency cell reselection indication in SIB1. The first intra-frequency cell reselection indication in MIB is related to NES and included in a field “intraFreqReselection” . The second intra-frequency cell reselection indication in SIB is related to RedCap and included in a field “intraFreqReselectionRedCap” . The third intra-frequency cell reselection indication in SIB1 is related to 2RX XR and included in a field “intraFreqReselection2RxXR” .
[0107] In the third example, a value of the first priority is equal to 3, a value of the second priority is equal to 2, and a value of the third priority is equal to 4. An increasing priority value may indicate a lower priority level. Because the second priority is the highest among the first priority, the second priority and the third priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on the value in the field “intraFreqReselectionRedCap” . The UE 104 may consider “intraFreqReselection” in MIB to be “intraFreqReselectionRedCap” in SIB1.
[0108] Alternatively, in some implementations, the information related to each of multiple capabilities may comprise at least one priority. Each of the at least one priority is related to one of the multiple capabilities. In such implementations, each of the at least one intra-frequency cell reselection indication is related to one of the multiple capabilities. In such implementations, if a first capability among the multiple capabilities has a highest priority or a lowest priority among the at least one priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on a third intra-frequency cell reselection indication related to the first capability.
[0109] Consider a fourth example. In the fourth example, the multiple capabilities may comprise NES, RedCap, and 2RX XR. The information related to each of multiple capabilities may comprise a first priority related to NES, a second priority related to RedCap and a third priority related to 2RX XR. The first intra-frequency cell reselection indication in MIB is related to NES and included in a field “intraFreqReselection” . The second intra-frequency cell reselection indication in SIB is related to RedCap and included in a field “intraFreqReselectionRedCap” . The third intra-frequency cell reselection indication in SIB1 is related to 2RX XR and included in a field “intraFreqReselection2RxXR” .
[0110] In the fourth example, a value of the first priority is equal to 3, a value of the second priority is equal to 2, and a value of the third priority is equal to 4. An increasing priority value may indicate a lower priority level. Because the second priority is the highest among the first priority, the second priority and the third priority, the UE 104 may determine whether to perform the intra-frequency cell reselection based on the value in the field intraFreqReselectionRedCap. The UE 104 may consider “intraFreqReselection” in MIB to be “intraFreqReselectionRedCap” in SIB1.
[0111] In some implementations, the UE 104 may receive, from the network node 102, a first indication indicating that the information is transmitted for a first cell. For example, if the at least one priority is related to the cell B and the network node 102 broadcasts the at least one priority via a neighbor cell of the cell B, the network node 102 may transmit the first indication indicating that the at least one priority is transmitted for the cell B. For another example, if the at least one priority is related to the cell B and the network node 102 broadcasts the at least one priority via a neighbor cell of the cell B, the network node 102 may not transmit the first indication. For another example, if the at least one priority is related to the cell B and the network node 102 broadcasts the at least one priority via the cell B, the network node 102 may transmit the first indication indicating that the at least one priority is transmitted for the cell B. For another example, if the at least one priority is related to the cell B and the network node 102 broadcasts the at least one priority via the cell B, the network node 102 may not transmit the first indication indicating that the at least one priority is transmitted for the cell B.
[0112] In some implementations, the network node 102 may broadcast the at least one priority via system information of the cell B or a neighbor cell of the cell B. Alternatively or additionally, the network node 102 may transmit the at least one priority when the UE 104 is released to RRC_IDLE state or RRC_INACTIVE state. Correspondingly, the UE 104 stores the at least one received priority. Further, the network node 102 may broadcast the at least one priority via the cell B or a neighbor cell of the cell B. Then, the UE 104 may ignore the at least one priority if it is received from the system information of the same cell from which the UE 104 is released.
[0113] In some implementations, the information may comprise a second indication indicating that a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication is to be used by the UE 104. In such implementations, the UE 104 may determine whether to perform intra-frequency cell reselection based on the first intra-frequency cell reselection indication.
[0114] In some implementations, the network node 102 may transmit the second indication via system information. For example, the network node 102 may transmit the second indication via MIB, SIB1, or other SIB. Alternatively, the network node 102 may transmit the second indication via an RRC Release message.
[0115] Alternatively, in some implementations, it may be predefined that a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication is to be used by the UE 104. In such implementations, the UE 104 may select the first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication based on predefinition. Then, the UE 104 may determine whether to perform intra-frequency cell reselection based on the first intra-frequency cell reselection indication.
[0116] For example, it may be predefined that a first intra-frequency cell reselection indication in MIB is to be used by the UE 104. In such implementations, the UE 104 may select the first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication based on predefinition. Then, the UE 104 may determine whether to perform intra-frequency cell reselection based on the first intra-frequency cell reselection indication in MIB.
[0117] For another example, it may be predefined that an intra-frequency cell reselection indication in SIB1 is to be used by the UE 104. In such implementations, the UE 104 may select any intra-frequency cell reselection indication in SIB1 based on predefinition. Then, the UE 104 may determine whether to perform intra-frequency cell reselection based on the selected intra-frequency cell reselection indication in SIB1. Selection of the intra-frequency cell reselection indication in SIB1 may be up to implementations of the UE 104. For another example, the UE 104 may determine whether to perform intra-frequency cell reselection based on all of the intra-frequency cell reselection indications corresponding to the capabilities that the UE 104 supports. Assuming the UE 104 supports NES and RedCap, the UE 104 may determine to perform intra-frequency cell reselection if both the NES UE and RedCap UE in the cell are allowed to perform intra-frequency cell reselection. The UE 104 may determine not to perform intra-frequency cell reselection if either the NES UE or RedCap UE in the cell is not allowed to perform intra-frequency cell reselection. Alternatively, assuming the UE 104 supports NES and RedCap, the UE 104 may determine not to perform intra-frequency cell reselection if neither the NES UE nor RedCap UE in the cell is allowed to perform intra-frequency cell reselection. The UE 104 may determine to perform intra-frequency cell reselection if either the NES UE or RedCap UE in the cell is allowed to perform intra-frequency cell reselection.
[0118] As described above, in some implementations, when the cell B is barred or treated as barred by the UE 104, the UE 104 may determine whether to perform the intra-frequency cell reselection. In such implementations, if the UE 104 determines the cell status of the cell B as barred based on an indication of a cell status related to a first capability among the multiple capabilities, the UE 104 may determine whether to perform the intra-frequency cell reselection based on an intra-frequency cell reselection indication related to the first capability.
[0119] For example, if the UE 104 supports 2Rx XR and 2Rx XR has the highest priority among priorities of the multiple capabilities, the UE 104 determines the cell B is barred based on an indication of a cell status related to 2Rx XR. In turn, the UE 104 may determine whether to perform the intra-frequency cell reselection based on an intra-frequency cell reselection indication SIB1. For example, the UE 104 may determine whether to perform the intra-frequency cell reselection based on a value of a field “intraFreqReselection2RxXR” in SIB1.
[0120] For another example, if the UE 104 supports NES and NES has the highest priority among priorities of the multiple capabilities, the UE 104 determines the cell B is barred based on an indication of a cell status related to NES. In turn, the UE 104 may determine whether to perform the intra-frequency cell reselection based on an intra-frequency cell reselection indication MIF. For example, the UE 104 may determine whether to perform the intra-frequency cell reselection based on a value of a field “intraFreqReselection” in MIB.
[0121] In some implementations, the network node 102 may transmit, to a second network node, the information related to each of multiple capabilities or related to the multiple capabilities. Accordingly, the second network node may receive, from the network node 102, the information related to each of multiple capabilities or related to the multiple capabilities. In turn, the second network node may transmit, to one or more UEs 104, the information related to each of multiple capabilities or related to the multiple capabilities. The implementations of the information have been described as above. Details of such implementations are omitted for brevity.
[0122] In addition, the network node 102 may transmit, to the second network node, the at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. Accordingly, the second network node may receive, from the network node 102, the at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. In turn, the second network node may transmit, to one or more UEs 104, the at least one intra-frequency cell reselection indication. The implementations of the at least one intra-frequency cell reselection indication have been described as above. Details of such implementations are omitted for brevity.
[0123] In some implementations, the network node 102 may be implemented as a gNB-CU, and the second network node may be implemented as a gNB-DU. In such implementations, the gNB-CU may transmit, to the gNB-DU, the information related to each of multiple capabilities or related to the multiple capabilities, and the at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. Accordingly, the gNB-DU may receive, from the gNB-CU, the information related to each of multiple capabilities or related to the multiple capabilities, and the at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0124] Fig. 3 illustrates an example of a device 300 that supports cell reselection in accordance with aspects of the present disclosure. The device 300 may be an example of a network entity 102 as described herein. The device 300 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 300 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 302, a memory 304, a transceiver 306, and, optionally, an I / O controller 308. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0125] The processor 302, the memory 304, the transceiver 306, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 302, the memory 304, the transceiver 306, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0126] In some implementations, the processor 302, the memory 304, the transceiver 306, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 302 and the memory 304 coupled with the processor 302 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 302, instructions stored in the memory 304) .
[0127] For example, the processor 302 may support wireless communication at the device 300 in accordance with examples as disclosed herein. The processor 302 may be configured to operable to support a means for performing the following: transmitting information related to each of multiple capability or related to the multiple capabilities; and transmitting at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0128] Alternatively, in some implementations, the processor 302 may be configured to operable to support a means for performing the following: receiving, from a network node, information related to each of multiple capabilities or related to the multiple capabilities; receiving, from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities; and determining whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.
[0129] Alternatively, in some implementations, the processor 302 may be configured to operable to support a means for performing the following: transmitting, to a second network node, information related to each of multiple capabilities or related to the multiple capabilities; and transmitting, to the second network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0130] Alternatively, in some implementations, the processor 302 may be configured to operable to support a means for performing the following: receiving, from a first network node, information related to each of multiple capabilities or related to the multiple capabilities; and receiving, from the first network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0131] The processor 302 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 302 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 302. The processor 302 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 304) to cause the device 300 to perform various functions of the present disclosure.
[0132] The memory 304 may include random access memory (RAM) and read-only memory (ROM) . The memory 304 may store computer-readable, computer-executable code including instructions that, when executed by the processor 302 cause the device 300 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 302 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 304 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0133] The I / O controller 308 may manage input and output signals for the device 300. The I / O controller 308 may also manage peripherals not integrated into the device 300. In some implementations, the I / O controller 308 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 308 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 308 may be implemented as part of a processor, such as the processor 306. In some implementations, a user may interact with the device 300 via the I / O controller 308 or via hardware components controlled by the I / O controller 308.
[0134] In some implementations, the device 300 may include a single antenna 310. However, in some other implementations, the device 300 may have more than one antenna 310 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 306 may communicate bi-directionally, via the one or more antennas 310, wired, or wireless links as described herein. For example, the transceiver 306 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 306 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 310 for transmission, and to demodulate packets received from the one or more antennas 310. The transceiver 306 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0135] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 310 for transmitting the amplified signal into the air or wireless medium.
[0136] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 310 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0137] Fig. 4 illustrates an example of a processor 400 that supports cell reselection in accordance with aspects of the present disclosure. The processor 400 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 400 may include a controller 402 configured to perform various operations in accordance with examples as described herein. The processor 400 may optionally include at least one memory 404, such as L1 / L2 / L3 cache. Additionally, or alternatively, the processor 400 may optionally include one or more arithmetic-logic units (ALUs) 406. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0138] The processor 400 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 400) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0139] The controller 402 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 400 to cause the processor 400 to support various operations in accordance with examples as described herein. For example, the controller 402 may operate as a control unit of the processor 400, generating control signals that manage the operation of various components of the processor 400. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0140] The controller 402 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 404 and determine subsequent instruction (s) to be executed to cause the processor 400 to support various operations in accordance with examples as described herein. The controller 402 may be configured to track memory address of instructions associated with the memory 404. The controller 402 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 402 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 400 to cause the processor 400 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 402 may be configured to manage flow of data within the processor 400. The controller 402 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 400.
[0141] The memory 404 may include one or more caches (e.g., memory local to or included in the processor 400 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 404 may reside within or on a processor chipset (e.g., local to the processor 400) . In some other implementations, the memory 404 may reside external to the processor chipset (e.g., remote to the processor 400) .
[0142] The memory 404 may store computer-readable, computer-executable code including instructions that, when executed by the processor 400, cause the processor 400 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 402 and / or the processor 400 may be configured to execute computer-readable instructions stored in the memory 404 to cause the processor 400 to perform various functions. For example, the processor 400 and / or the controller 402 may be coupled with or to the memory 404, the processor 400, the controller 402, and the memory 404 may be configured to perform various functions described herein. In some examples, the processor 400 may include multiple processors and the memory 404 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0143] The one or more ALUs 406 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 406 may reside within or on a processor chipset (e.g., the processor 400) . In some other implementations, the one or more ALUs 406 may reside external to the processor chipset (e.g., the processor 400) . One or more ALUs 406 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 406 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 406 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 406 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 406 to handle conditional operations, comparisons, and bitwise operations.
[0144] The processor 400 may support wireless communication at the device 400 in accordance with examples as disclosed herein. The processor 400 may be configured to operable to support a means for performing the following: transmitting information related to each of multiple capability or related to the multiple capabilities; and transmitting at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0145] Alternatively, in some implementations, the processor 400 may be configured to operable to support a means for performing the following: receiving, from a network node, information related to each of multiple capabilities or related to the multiple capabilities; receiving, from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities; and determining whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.
[0146] Alternatively, in some implementations, the processor 400 may be configured to operable to support a means for performing the following: transmitting, to a second network node, information related to each of multiple capabilities or related to the multiple capabilities; and transmitting, to the second network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0147] Alternatively, in some implementations, the processor 400 may be configured to operable to support a means for performing the following: receiving, from a first network node, information related to each of multiple capabilities or related to the multiple capabilities; and receiving, from the first network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
[0148] Fig. 5 illustrates a flowchart of a method 500 that supports cell reselection in accordance with aspects of the present disclosure. The operations of the method 500 may be implemented by a device or its components as described herein. For example, the operations of the method 500 may be performed by the network node 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0149] At 510, the method may include transmitting information related to each of multiple capability or related to the multiple capabilities. The operations of 510 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 510 may be performed by a device as described with reference to Fig. 1.
[0150] At 520, the method may include transmitting at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. The operations of 520 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 520 may be performed by a device as described with reference to Fig. 1.
[0151] Fig. 6 illustrates a flowchart of a method 600 that supports cell reselection in accordance with aspects of the present disclosure. The operations of the method 600 may be implemented by a device or its components as described herein. For example, the operations of the method 600 may be performed by the UE 104 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0152] At 610, the method may include receiving, from a network node, information related to each of multiple capabilities or related to the multiple capabilities. The operations of 610 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 610 may be performed by a device as described with reference to Fig. 1.
[0153] At 620, the method may include receiving, from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. The operations of 620 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 620 may be performed by a device as described with reference to Fig. 1.
[0154] At 630, the method may include determining whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication. The operations of 630 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 630 may be performed by a device as described with reference to Fig. 1.
[0155] Fig. 7 illustrates a flowchart of a method 700 that supports cell reselection in accordance with aspects of the present disclosure. The operations of the method 700 may be implemented by a device or its components as described herein. For example, the operations of the method 700 may be performed by the network node 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0156] At 710, the method may include transmitting, to a second network node, information related to each of multiple capabilities or related to the multiple capabilities. The operations of 710 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 710 may be performed by a device as described with reference to Fig. 1.
[0157] At 720, the method may include transmitting, to the second network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. The operations of 720 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 720 may be performed by a device as described with reference to Fig. 1.
[0158] Fig. 8 illustrates a flowchart of a method 800 that supports cell reselection in accordance with aspects of the present disclosure. The operations of the method 800 may be implemented by a device or its components as described herein. For example, the operations of the method 800 may be performed by the network node 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0159] At 810, the method may include receiving, from a first network node, information related to each of multiple capabilities or related to the multiple capabilities. The operations of 810 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 810 may be performed by a device as described with reference to Fig. 1.
[0160] At 820, the method may include receiving, from the first network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities. The operations of 820 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 820 may be performed by a device as described with reference to Fig. 1.
[0161] It shall be noted that implementations of the present disclosure which have been described with reference to Figs. 1 and 2 are also applicable to the device 300, the processor 400 as well as the methods 500, 600, 700 and 800.
[0162] It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0163] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0164] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0165] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
[0166] As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
[0167] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A network node, comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:transmit, via the transceiver, information related to each of multiple capability or related to the multiple capabilities; andtransmit, via the transceiver, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.2.The network node of claim 1, wherein the multiple capabilities are associated with one or more of the following: network energy saving (NES) , non-terrestrial network (NTN) , very small aperture terminal (VSAT) , reduced capability (RedCap) , enhanced reduced capability (eRedCap) , two antenna port eXtended Reality (2Rx XR) , air-to-ground (ATG) , or half-duplex frequency division duplex RedCap.3.The network node of claim 1, wherein the information related to the multiple capabilities comprises at least one indication, each of the at least one indication indicates that a combination of at least part of the multiple capabilities is supported.4.The network node of claim 3, wherein each of the at least one intra-frequency cell reselection indication is related to a combination of at least part of the multiple capabilities.5.The network node of claim 1, wherein the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one or more of the at least one intra-frequency cell reselection indication.6.The network node of claim 1, wherein the processor is further configured to:transmit a first indication indicating that the information is transmitted for a first cell.7.A user equipment (UE) , comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:receive, via the transceiver from a network node, information related to each of multiple capabilities or related to the multiple capabilities;receive, via the transceiver from the network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities; anddetermine whether to perform intra-frequency cell reselection based on at least one of the information or the at least one intra-frequency cell reselection indication.8.The UE of claim 7, wherein the information related to the multiple capabilities comprises at least one indication, each of the at least one indication indicates that a combination of at least part of the multiple capabilities is supported.9.The UE of claim 7, wherein the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one or more of the at least one intra-frequency cell reselection indication.10.The UE of claim 9, wherein the at least one intra-frequency cell reselection indication comprises a first intra-frequency cell reselection indication in master information block (MIB) and at least one second intra-frequency cell reselection indication in system information block type 1 (SIB1) ; andwherein the at least one priority comprises a first priority related to the first intra-frequency cell reselection in MIB and a second priority related to the at least one second intra-frequency cell reselection indication in SIB1.11.The UE of claim 10, wherein the processor is configured to determine whether to perform intra-frequency cell reselection by:based on determining that the first priority is higher than the second priority, determining whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection in MIB; andbased on determining that the first priority is lower than the second priority, determining whether to perform the intra-frequency cell reselection based on one of the at least one second intra-frequency cell reselection indication in SIB1.12.The UE of claim 9, wherein the at least one intra-frequency cell reselection indication comprises a first intra-frequency cell reselection indication in master information block (MIB) and at least one second intra-frequency cell reselection indication in system information block type 1 (SIB1) ; andwherein the at least one priority comprises multiple priorities, each of the multiple priorities is related to the first intra-frequency cell reselection indication in MIB or one of the at least one second intra-frequency cell reselection indication in SIB1.13.The UE of claim 12, wherein the processor is configured to determine whether to perform intra-frequency cell reselection by:based on determining that the first intra-frequency cell reselection indication in MIB has a highest priority among the multiple priorities, determining whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection indication in MIB; andbased on determining that one of the at least one second intra-frequency cell reselection indication in SIB1 has the highest priority among the multiple priorities, determining whether to perform the intra-frequency cell reselection based on the one of the at least one second intra-frequency cell reselection indication in SIB1.14.The UE of claim 7, wherein the information related to each of multiple capabilities comprises at least one priority, each of the at least one priority is related to one of the multiple capabilities.15.The UE of claim 9 or 14, wherein each of the at least one intra-frequency cell reselection indication is related to one of the multiple capabilities.16.The UE of claim 15, wherein the processor is configured to determine whether to perform intra-frequency cell reselection by:based on determining that a first capability among the multiple capabilities has a highest priority or a lowest priority among the at least one priority, determining whether to perform the intra-frequency cell reselection based on a third intra-frequency cell reselection indication related to the first capability.17.The UE of claim 7, wherein the information comprises a second indication indicating that a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication is to be used by the UE; andwherein the processor is configured to determine whether to perform intra-frequency cell reselection based on the first intra-frequency cell reselection indication.18.The UE of claim 7, wherein the processor is further configured to:select a first intra-frequency cell reselection indication among the at least one intra-frequency cell reselection indication based on predefinition; andwherein the processor is configured to determine whether to perform the intra-frequency cell reselection based on the first intra-frequency cell reselection indication.19.A first network node, comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:transmit, via the transceiver to a second network node, information related to each of multiple capabilities or related to the multiple capabilities; andtransmit, via the transceiver to the second network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.20.A second network node, comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:receive, via the transceiver from a first network node, information related to each of multiple capabilities or related to the multiple capabilities; andreceive, via the transceiver from the first network node, at least one intra-frequency cell reselection indication related to at least one of the multiple capabilities.
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