Solution to paging conflicts in multi-SIM and C-RAT operations

Abstract

Certain aspects of the present disclosure provide techniques for resolving paging conflicts (e.g., for UEs camped on multiple cells). In some cases, based on a paging configuration, a UE detects a conflict between configured paging occasions of at least two cells on which the UE is camped; signals an indication of the conflict to at least one of the cells; and receives information related to a new paging configuration designed to resolve the conflict. In some cases, the UE identifies a different cell on which to camp that is not affected by the conflict, wherein the different cell is not as good a candidate for cell selection as one of the conflicting cells in terms of a cell selection criterion; and the UE camps on the identified cell.

Description

[0001] Priority claim

[0002] This application claims priority to U.S. Application No. 16 / 714,665, filed on December 13, 2019, which claims priority to and the benefit of U.S. Provisional Application No. 62 / 780,129, filed on December 14, 2018, the entire contents of which are expressly incorporated herein by reference as if fully set forth below and for all applicable purposes. Technical Field

[0003] Aspects of the present disclosure relate to wireless communications and, more particularly, to techniques for resolving collisions of paging events when a UE is camped on more than one cell. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services, such as telephony, video, data, messaging, broadcast, etc. These wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). For example, examples of such multiple access systems include the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) system, the LTE Advanced (LTE-A) system, the Code Division Multiple Access (CDMA) system, the Time Division Multiple Access (TDMA) system, the Frequency Division Multiple Access (FDMA) system, the Orthogonal Frequency Division Multiple Access (OFDMA) system, the Single Carrier Frequency Division Multiple Access (SC FDMA) system, and the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, etc.

[0005] In some examples, a wireless multiple access communication system may include multiple base stations (BS), each of which is capable of simultaneously supporting communications for multiple communication devices (otherwise referred to as user equipment (UE)). In an LTE or LTE-A network, a collection of one or more base stations may define an eNodeB (eNB). In other examples (e.g., in a next generation, new radio (NR) or 5G network), a wireless multiple access communication system may include multiple distributed units (DUs) (e.g., edge units (EUs), edge nodes (ENs), radio heads (RHs), smart radio heads (SRHs), transmission reception points (TRPs), etc.) communicating with multiple central units (CUs) (e.g., central nodes (CNs), access node controllers (ANCs), etc.), wherein a collection of one or more DUs communicating with a CU may define an access node (e.g., which may be referred to as a BS, 5G NB, next generation NodeB (gNB or gNodeB), transmission reception point (TRP), etc.). A BS or DU may communicate with a set of UEs on downlink channels (eg, for transmissions from the BS or DU to the UEs) and uplink channels (eg, for transmissions from the UEs to the BS or DU).

[0006] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a municipal, national, regional, and even global level. NR (e.g., New Radio or 5G) is an example of an emerging telecommunication standard. NR is a collection of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards using OFDMA with cyclic prefix (CP) on the downlink (DL) and uplink (UL). To this end, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0007] However, as the demand for mobile broadband access continues to grow, there is a need for further improvements in NR and LTE technologies. Preferably, these improvements should be applicable to other multiple access technologies and the telecommunication standards that employ these technologies. Summary of the invention

[0008] The systems, methods, and devices of the present disclosure each have several aspects, no single aspect being solely responsible for its desirable attributes. Without limiting the scope of the present disclosure as expressed by the appended claims, some features will now be briefly discussed. After considering this discussion, and particularly after reading the section entitled "Detailed Description," one will understand how the features of the present disclosure provide advantages including improved communications between access points and stations in a wireless network.

[0009] Certain aspects provide a method of wireless communication by a user equipment (UE). The method generally includes: based on a paging configuration, detecting a conflict between configured paging occasions of at least two cells on which the UE is camped; and signaling an indication of the conflict to at least one of the cells; and receiving information related to a new paging configuration designed to resolve the conflict.

[0010] Certain aspects provide a method of wireless communication by a network entity. The method generally includes: based on a paging configuration, detecting a conflict between configured paging occasions of at least two cells on which a user equipment (UE) is camped; and providing information related to a new paging configuration designed to resolve the conflict.

[0011] Certain aspects provide a method of wireless communication by a user equipment (UE). The method generally includes: based on a paging configuration, detecting a conflict between configured paging occasions of at least two cells on which the UE is camped; receiving information related to a plurality of possible paging occasions of the cell from at least one of the cells; and monitoring paging in one of the possible paging occasions that is not affected by the conflict.

[0012] Certain aspects provide a method of wireless communications by a network entity. The method generally includes: signaling information about a plurality of possible paging occasions to a user equipment (UE); and paging the UE in the possible paging occasions.

[0013] Certain aspects provide a method of wireless communication by a user equipment (UE). The method generally includes: based on a paging configuration, detecting a conflict between configured paging occasions of at least two cells on which the UE is camped; identifying a different cell on which to camp that is not affected by the conflict, wherein the different cell is not as good a candidate for cell selection as one of the conflicting cells in terms of a cell selection criterion; and camping on the identified cell.

[0014] Certain aspects provide components, apparatuses, and / or computer-readable media having computer-executable code stored thereon for the above-described techniques.

[0015] To achieve the aforementioned and related purposes, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are only indicative of some of the various ways in which the principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order that the above-mentioned features of the present disclosure may be understood in detail, a more specific description briefly summarized above may be made by reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the description may admit of other equally effective aspects.

[0017] Figure 1 is a block diagram conceptually illustrating an example telecommunications system in accordance with certain aspects of the present disclosure.

[0018] Figure 2 is a block diagram illustrating an example logical architecture of a distributed radio access network (RAN) in accordance with certain aspects of the present disclosure.

[0019] Figure 3 is a diagram illustrating an example physical architecture of a distributed RAN in accordance with certain aspects of the present disclosure.

[0020] Figure 4 is a block diagram conceptually illustrating designs of example base stations (BSs) and user equipment (UEs) in accordance with certain aspects of the present disclosure.

[0021] Figure 5 is a diagram illustrating an example of an implementation communication protocol stack in accordance with certain aspects of the present disclosure.

[0022] Figure 6 An example of a frame format for a New Radio (NR) system is shown, in accordance with certain aspects of the present disclosure.

[0023] Figure 7 is a flow chart illustrating example operations that may be performed by a UE in accordance with certain aspects of the present disclosure.

[0024] Figure 8 is a flow diagram illustrating example operations that may be performed by a network entity in accordance with certain aspects of the present disclosure.

[0025] Fig. 9 is a flow chart illustrating example operations that may be performed by a UE in accordance with certain aspects of the present disclosure.

[0026] Fig.10 is a flow diagram illustrating example operations that may be performed by a network entity in accordance with certain aspects of the present disclosure.

[0027] Fig.11 is a flow diagram illustrating example operations that may be performed by a UE in accordance with certain aspects of the present disclosure.

[0028] To facilitate understanding, like reference numerals have been used, where possible, to designate like elements in the drawings. It is contemplated that elements disclosed in one aspect may be beneficially utilized in other aspects without specific description. DETAILED DESCRIPTION

[0029] Various aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable media for resolving conflicts of paging events when a UE is camped on more than one cell. These techniques can be implemented in a wireless system where a UE can camp on multiple cells, which can have the same or different radio access technologies (RATs).

[0030] As used herein, the term camp generally means that the UE has found a suitable cell based on the available frequency bands (e.g., PSS and SSS), found the physical cell ID and decoded the PBCH and SIB to obtain the information required for initial access to the cell. In other words, the UE is ready to access the cell but may be waiting to actually establish a connection.

[0031] The following description provides examples, but is not intended to limit the scope, applicability, or examples described in the claims. Changes may be made in the functions and arrangements of the elements discussed without departing from the scope of the present disclosure. Various examples may appropriately omit, replace, or add various programs or components. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, the features described in some other examples may be combined in some examples. For example, any number of aspects described herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions in addition to or in addition to the various aspects of the disclosure described herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements in the claims. The word "exemplary" is used herein to mean "as an example, instance, or illustration". Any aspect described herein as "exemplary" is not necessarily to be interpreted as being preferred or superior to other aspects.

[0032] The technology disclosed herein can be used for various communication technologies such as LTE, CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks. The terms "network" and "system" are often used interchangeably. A CDMA network can implement radio technologies such as Universal Terrestrial Radio Access (UTRA), CDMA 2000, etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. CDMA 2000 covers IS-2000, IS-95 and IS-856 standards. A TDMA network can implement radio technologies such as Global System for Mobile Communications (GSM). An OFDMA network can implement radio technologies such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE802.11 (Wi Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS).

[0033] New Radio (NR) is an emerging wireless communication technology developed in conjunction with the 5G Technology Forum (5GTF). 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA 2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the above-mentioned wireless networks and radio technologies as well as other wireless networks and radio technologies. For clarity, although terms commonly associated with 3G and / or 4G wireless technologies may be used herein to describe various aspects, various aspects of the present disclosure may be applied to other communication systems (e.g., 5G and higher) based on generations including NR technology.

[0034] New Radio (NR) access (e.g., 5G technology) can support various wireless communication services, such as enhanced mobile broadband (eMBB) for wide bandwidth (e.g., 80 MHz or higher), millimeter wave (mmW) for high carrier frequency (e.g., 25 GHz or higher), massive machine type communication MTC (mMTC) for non-backward compatible MTC technology, and / or mission critical for ultra-reliable low latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTIs) to meet corresponding quality of service (QoS) requirements. In addition, these services can coexist in the same subframe.

[0035] Example Wireless Communication System

[0036] Figure 1 An example wireless communication network 100 is shown in which aspects of the present disclosure may be performed. For example, the wireless communication network 100 may be a new radio (NR) or 5G network having a plurality of wireless devices configured to perform Figure 7 , Fig. 9 and / or Fig.11 120 to resolve conflicts in paging events when the UE is camped on more than one cell. In some cases, such a cell may be configured to perform Figure 8 or Fig.10 The base station 110 is operated to serve.

[0037] like Figure 1 As shown, the wireless communication network 100 may include multiple base stations (BS) 110 and other network entities. A base station may be a station that communicates with a user equipment (UE). Each BS 110 may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a Node B (NB) and / or a NB subsystem serving the coverage area, depending on the context in which the term is used. In the NR system, the term "cell" and the next generation Node B (gNB or gNodeB), NR BS, 5GNB, access point (AP) or transmission reception point (TRP) may be interchangeable. In some examples, the cell may not necessarily be stationary, and the geographical area of ​​the cell may move according to the location of the mobile BS. In some examples, the base stations may be interconnected to each other and / or to one or more other base stations or network nodes (not shown) in the wireless communication network 100 via various types of backhaul interfaces (e.g., direct physical connections, wireless connections, virtual networks, etc. using any suitable transmission network).

[0038] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, subcarrier, frequency channel, tone, subband, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0039] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in a home, etc.). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the illustrated example, BSs 110a, 110b, and 110c may be macro BSs for macro cells 102a, 102b, and 102c, respectively. BS 110x may be a pico BS for pico cell 102x. BSs 110y and 110z may be femto BSs for femto cells 102y and 102z, respectively. A BS may support one or more (e.g., three) cells.

[0040] The wireless communication network 100 may also include a relay station. A relay station is a station that receives transmissions of data and / or other information from an upstream station (e.g., a BS or a UE) and sends transmissions of data and / or other information to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that relays transmissions for other UEs. Figure 1 In the illustrated example, a relay station 110r may communicate with a BS 110a and a UE 120r to facilitate communication between the BS 110a and the UE 120r. A relay station may also be referred to as a relay BS, a relay, or the like.

[0041] The wireless communication network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relays, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless communication network 100. For example, a macro BS may have a high transmit power level (e.g., 20 watts), while a pico BS, a femto BS, and a relay may have a lower transmit power level (e.g., 1 watt).

[0042] The wireless communication network 100 may support synchronous or asynchronous operation. For synchronous operation, the BSs may have similar frame timing, and transmissions from different BSs may be roughly aligned in time. For asynchronous operation, the BSs may have different frame timing, and transmissions from different base stations may not be consistent in time. The techniques described herein may be used for both synchronous and asynchronous operation.

[0043] A network controller 130 may couple to a set of BSs and provide coordination and control for these BSs. Network controller 130 may communicate with BSs 110 via a backhaul. BSs 110 may also communicate with each other (eg, directly or indirectly) via a wireless or wired backhaul.

[0044] UE 120 (e.g., 120x, 120y, etc.) may be dispersed throughout the wireless communication network 100, and each UE may be fixed or mobile. UE may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, customer premises equipment (CPE), cellular phone, smart phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or medical equipment, biosensor / device, wearable device (such as smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music device, video device, satellite radio, etc.), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, global positioning system device, or any other suitable device configured to communicate via wireless or wired medium. Some UEs may be considered as machine type communication (MTC) devices or evolved MTC (eMTC) devices. For example, MTC and eMTC UEs include robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a BS, another device (e.g., a remote device), or some other entity. For example, a wireless node can provide connectivity to or for a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs can be considered Internet of Things (IoT) devices, which can be narrowband Internet of Things (NB-IoT) devices.

[0045] Some wireless networks (e.g., LTE) utilize orthogonal frequency division multiplexing (OFDM) on the downlink and single carrier frequency division multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, which are also commonly referred to as tones, bins, etc. Each subcarrier can be modulated with data. Typically, modulation symbols are sent in the frequency domain using OFDM, while modulation symbols are sent in the time domain using SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the spacing of the subcarriers can be 15kHz, and the minimum resource allocation (called a "resource block" (RB)) can be 12 subcarriers (or 180kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), the nominal fast Fourier transform (FFT) size can be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth may also be partitioned into subbands. For example, a subband may cover 1.08 MHz (ie, 6 resource blocks), and there may be 1, 2, 4, 8, or 16 subbands for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, respectively.

[0046] Although aspects of the examples described herein are associated with LTE technology, aspects of the present disclosure may be applicable to other wireless communication systems (e.g., NR). NR may utilize OFDM with CP on the uplink and downlink, and may include support for half-duplex operation using TDD. Beamforming may be supported, and the beam direction may be dynamically configured. MIMO transmission with precoding may also be supported. The MIMO configuration in the DL (downlink) may support up to 8 transmit antennas with up to 8 streams and multi-layer DL transmission of up to 2 streams per UE. Multi-layer transmission of up to 2 streams per UE may be supported. Aggregation of multiple cells may be supported by up to 8 serving cells.

[0047] In some examples, access to the air interface can be scheduled. The scheduling entity (e.g., BS) allocates resources for communication between some or all devices and equipment within its service area or cell. The scheduling entity can be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communications, subordinate entities utilize resources allocated by the scheduling entity. The base station is not the only entity that can act as a scheduling entity. In some examples, the UE can act as a scheduling entity and can schedule resources for one or more subordinate entities (e.g., one or more other UEs), and other UEs can utilize the resources scheduled by the UE for wireless communication. In some examples, the UE can act as a scheduling entity in a point-to-point (P2P) network and / or a mesh network. In the mesh network example, in addition to communicating with the scheduling entity, the UEs can communicate directly with each other.

[0048] exist Figure 1 In FIG. 1 , a solid line with double arrows indicates desired transmissions between a UE and a serving BS, which is a BS designated to serve the UE on the uplink and / or downlink. A thin dashed line with double arrows indicates interfering transmissions between a UE and a BS.

[0049] Figure 2 An example logical architecture of a distributed radio access network (RAN) 200 is shown, which may be Figure 1 206. The 5G access node 206 may include an access node controller (ANC) 202. The ANC 202 may be a central unit (CU) of the distributed RAN 200. The backhaul interface to the next generation core network (NG-CN) 204 may terminate at the ANC 202. The backhaul interface to the adjacent next generation access nodes (NG-AN) 210 may terminate at the ANC 202. The ANC 202 may include one or more TRPs 208 (e.g., cells, BSs, gNBs, etc.).

[0050] The TRP 208 may be a distributed unit (DU). The TRP 208 may be connected to a single ANC (e.g., ANC 202) or more than one ANC (not shown). For example, for RAN sharing, Radio as a Service (RaaS), and service specific AND deployment, the TRP 208 may be connected to more than one ANC. The TRPs 208 may each include one or more antenna ports. The TRPs 208 may be configured to serve services to the UE individually (e.g., dynamically selected) or jointly (e.g., joint transmission).

[0051] The logical architecture of the distributed RAN 200 may support fronthaul solutions across different deployment types. For example, the logical architecture may be based on the transmission network capabilities (eg, bandwidth, latency, and / or jitter).

[0052] The logical architecture of the distributed RAN 200 may share features and / or components with LTE. For example, the next generation access node (NG-AN) 210 may support dual connectivity with NR and may share a common fronthaul for LTE and NR.

[0053] The logical architecture of the distributed RAN 200 may enable collaboration between and among TRPs 208 (eg, within a TRP and / or across TRPs via an ANC). An inter-TRP interface may not be used.

[0054] Logical functions may be dynamically distributed in the logical architecture of the distributed RAN 200. Figure 5 Described in more detail, the radio resource control (PRC) layer, the packet data convergence protocol (PDPC) layer, the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical layer (PHY) can be adaptively placed at the DU (e.g., TRP 208) or the CU (e.g., ANC202).

[0055] Figure 3 An example physical architecture of a distributed RAN 300 according to aspects of the present disclosure is shown. A centralized core network unit (C-CU) 302 may host core network functions. The C-CU 302 may be centrally deployed. To handle peak capacity, C-CU 302 functions may be offloaded (e.g., to advanced wireless services (AWS)).

[0056] A centralized RAN unit (C-RU) 304 may host one or more ANC functions. Optionally, the C-RU may host core network functions locally. The C-RU 304 may have a distributed deployment. The C-RU 304 may be close to the network edge.

[0057] DU 306 may host one or more TRPs (edge ​​node (EN), edge unit (UN), radio head (RH), smart radio head (SRH), etc.) DU may be located at the edge of the network with radio frequency (RF) capabilities.

[0058] Figure 4 BS 110 and UE 120 (eg Figure 1 ) that may be used to implement aspects of the present disclosure. For example, antenna 452, processors 466, 458, 464, and / or controller / processor 480 of UE 120 may be used to perform Figure 7 , Fig. 9 and / or Fig.11 Similarly, antenna 434, processors 420, 430, 438 and / or controller / processor 440 of BS 110 may be used to perform Figure 8 and / or Fig.10 operation.

[0059] At BS 110, a transmit processor 420 may receive data from a data source 412 and control information from a controller / processor 440. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), etc. The data may be for a physical downlink shared channel (PDSCH), etc. The processor 420 may process (e.g., encode and symbol map) the data and the control information, respectively, to obtain data symbols and control symbols. The processor 420 may also generate reference symbols, e.g., for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a cell-specific reference signal (CRS). A transmit (TX) multiple-input multiple-output (MIMO) processor 430 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols (if applicable), and may provide output symbol streams to modulators (MODs) 432a to 432t. Each modulator 432 can process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 432a to 432t can be transmitted via antennas 434a to 434t, respectively.

[0060] At the UE 120, antennas 452a to 452r can receive downlink signals from the base station 110 and can provide received signals to demodulators (DEMODs) 454a to 454r in the transceiver, respectively. Each demodulator 454 can condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 456 can obtain received symbols from all demodulators 454a to 454r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. The receive processor 458 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120 to the data sink 460, and provide decoded control information to the controller / processor 480.

[0061] On the uplink, at the UE 120, the transmit processor 464 may receive and process data from a data source 462 (e.g., for a physical uplink shared channel (PUSCH)) and control information from a controller / processor 480 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 464 may also generate reference symbols for reference signals (e.g., for a sounding reference signal (SRS)). If applicable, the symbols from the transmit processor 464 may be pre-coded and decoded by a TX MIMO processor 466, further processed by demodulators 454a to 454r in the transceiver (e.g., for SC-FDM, etc.), and transmitted to the base station 110. At the BS 110, the uplink signal from the UE 120 may be received by the antenna 434, processed by the modulator 432, detected by the MIMO detector 436 (if applicable), and further processed by the receive processor 438 to obtain decoded data and control information transmitted by the UE 120. The receive processor 438 may provide the decoded data to a data sink 439 and the decoded control information to a controller / processor 440 .

[0062] Controllers / processors 440 and 480 may direct the operation at BS 110 and UE 120, respectively. Processor 440 and / or other processors and modules at BS 110 may perform or direct the execution of processes for the techniques described herein. Memories 442 and 482 may store data and program codes for BS 110 and UE 120, respectively. Scheduler 444 may schedule UEs for data transmission on the downlink and / or uplink.

[0063] Figure 5 A diagram 500 showing an example of implementing a communication protocol stack according to various aspects of the present disclosure is shown. The communication protocol stack shown can be implemented by a device operating in a wireless communication system such as a 5G system (e.g., a system supporting uplink-based mobility). Figure 500 shows a communication protocol stack including an RRC layer 510, a PDCP layer 515, an RLC layer 520, a MAC layer 525, and a PHY layer 530. In various examples, the layers of the protocol stack can be implemented as independent software modules, parts of a processor or ASIC, non-co-located devices connected by a communication link, or a combination thereof. For example, a co-located or non-co-located implementation can be used in a protocol stack for a network access device (e.g., AN, CU, and / or DU) or a UE.

[0064] The first option 505-a illustrates a split implementation of the protocol stack, where the implementation of the protocol stack is performed on a centralized network access device (e.g., Figure 2 ANC 202 in ) and distributed network access equipment (e.g., Figure 2 In the first option 505-a, the RRC layer 510 and the PDCP layer 515 may be implemented by a central unit, and the RLC layer 520, the MAC layer 525, and the PHY layer 530 may be implemented by the DU. In various examples, the CU and the DU may be co-located or not. The first option 505-a may be useful in macro cell, micro cell, or pico cell deployments.

[0065] The second option 505-b shows a unified implementation of the protocol stack, where the protocol stack is implemented in a single network access device. In the second option, the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530 can each be implemented by the AN. The second option 505-b may be useful in, for example, a micro cell deployment.

[0066] Regardless of whether the network access device implements part or all of the protocol stack, the UE can implement the entire protocol stack as shown in 505-c (e.g., RRC layer 510, PDCP layer 515, RLC layer 520, MAC layer 525, and PHY layer 530).

[0067] In LTE, the basic transmission time interval (TTI) or packet duration is a 1ms subframe. In NR, the subframe is still 1ms, but the basic TTI is called a time slot. A subframe contains a variable number of time slots (e.g., 1, 2, 4, 8, 16... time slots), depending on the subcarrier spacing. NR RBs are 12 consecutive frequency subcarriers. NR can support a basic subcarrier spacing of 15kHz, and other subcarrier spacings can be defined relative to the basic subcarrier spacing, for example, 30kHz, 60kHz, 120kHz, 240kHz, etc. The symbol and time slot lengths change size with the subcarrier spacing. The CP length also depends on the subcarrier spacing.

[0068] Figure 6 600 for NR. The transmission timeline of each of the downlink and uplink may be divided into units of radio frames. Each radio frame may have a predetermined duration (e.g., 10 ms) and may be divided into 10 subframes, each 1 ms, indexed from 0 to 9. Each subframe may include a variable number of slots, depending on the subcarrier spacing. Each slot may include a variable number of symbol periods (e.g., 7 or 14 symbols). The symbol periods in each slot may be assigned indices. A mini slot, which may be referred to as a subslot structure, refers to a transmission time interval (e.g., 2, 3, or 4 symbols) having a duration less than a slot.

[0069] Each symbol in a slot may indicate a link direction (e.g., DL, UL, or flexible) for data transmission, and the link direction of each subframe may be switched dynamically. The link direction may be based on the slot format. Each slot may include DL / UL data and DL / UL control information.

[0070] In NR, a synchronization signal block (SS) is sent. The SS block includes PSS, SSS and two symbols of PBCH. The SS block can be sent at a fixed time slot position, such as Figure 6Symbols 0-3 shown. The UE can use PSS and SS for cell search and acquisition. PSS can provide half-frame timing, and SS can provide CP length and frame timing. PSS and SSS can provide cell identification. PBCH carries some basic system information, such as downlink system bandwidth, timing information within a radio frame, SS burst set periodicity, system frame number, etc. SS blocks can be organized into SS bursts to support beam scanning. In certain subframes, additional system information, such as remaining minimum system information (RMSI), system information block (SIB), and other system information (OSI) can be transmitted on the physical downlink shared channel (PDSCH). SS blocks can be transmitted up to 64 times, for example, for mmW with up to 64 different beam directions. Up to 64 transmissions of SS blocks are called SS burst sets. SS blocks in an SS burst set are sent in the same frequency region, while SS blocks in different SS burst sets can be sent at different frequency locations.

[0071] In some cases, two or more subordinate entities (e.g., UEs) can communicate with each other using sidelink signals. Real-world applications of such sidelink communications may include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle (V2V) communications, Internet of Everything (IoE) communications, IoT communications, mission-critical grids, and / or various other suitable applications. Generally, a sidelink signal may refer to a signal communicated from one subordinate entity (e.g., UE 1) to another subordinate entity (e.g., UE 2) without relaying the communication through a scheduling entity (e.g., UE or BS), even though the scheduling entity may be used for scheduling and / or control purposes. In some examples, licensed spectrum may be used to communicate sidelink signals (unlike wireless local area networks, which typically use unlicensed spectrum).

[0072] The UE may operate in various radio resource configurations, including configurations associated with sending pilots using a dedicated resource set (e.g., a radio resource control (RRC) dedicated state, etc.) or configurations associated with sending pilots using a common resource set (e.g., an RRC common state, etc.). When operating in the RRC dedicated state, the UE may select a dedicated resource set to send a pilot signal to the network. When operating in the RRC common state, the UE may select a common resource set to send a pilot signal to the network. In either case, the pilot signal sent by the UE may be received by one or more network access devices (e.g., an AN or DU) or a portion thereof. Each receiving network access device may be configured to receive and measure pilot signals sent on a common resource set, and also receive and measure pilot signals sent on a dedicated resource set allocated to a UE, for which the network access device is a member of a monitoring set of network access devices for the UE. One or more of the receiving network access devices, or a CU to which (a plurality of) receiving network access devices send measurement values ​​of pilot signals, may use these measurement values ​​to identify a serving cell for the UE, or to initiate a change in a serving cell for one or more UEs.

[0073] Example Solution for Paging Conflict

[0074] There are various types of scenarios where the UE can reside in multiple cells and needs to monitor paging in each cell, which may pose challenges. For example, in C-RAT (concurrent RAT) and multi-SIM scenarios (e.g., where the UE uses different user identification modules or SIMs in different networks, or has different mobile numbers in the same network), the UE may not have the ability to receive data or signaling notifications on two access links simultaneously. A special case is idle / inactive mobility, where the UE resides on a cell on each RAT or public land mobile network (PLMN) and can only receive one paging at a time.

[0075] Depending on the specific RAT, how paging events are determined may vary. In LTE, paging frames and timings are calculated based on cell-level paging parameters (DRX cycle, number of paging occasions in a cycle) and the International Mobile Subscriber Identity (IMSI). Unfortunately, many cells in a region may use the same cell parameters, making it likely that paging occasions will conflict if a UE resides on two LTE cells. As used herein, the term conflict refers to overlapping paging occasions in different cells, such that during the period when a paging event is affected by the conflict, the UE may only be able to monitor paging in one of the cells.

[0076] In NR, the UE identity used for paging is based on the last 10 digits of the Service Temporary Mobile Subscriber Identity (S-TMSI) assigned to the UE. Another difference compared to LTE is that the number of paging frames and the number of paging occasions (PO) corresponding to the paging frame (PF) are configured separately. NR also allows the configuration of offsets for each paging occasion, making the arrangement of paging occasions for UEs very flexible.

[0077] When a UE is dual camped on two NRs, or two LTE cells, or one NR and one LTE cell, paging conflicts may occur. For example, paging occasions may conflict between cells. Since the paging cycle value is 2^n*10ms, when a conflict occurs, the paging cycle will repeat periodically even if it is different between cells.

[0078] Various aspects of the present disclosure provide various solutions that can help resolve the paging conflict problem. As a result, overall system performance and user experience can be improved because the destination user can be reached faster than when the paging conflict is not resolved.

[0079] The various solutions apply different signaling options. The various solutions are applicable to various RAT systems, such as NR, LTE, eLTE, and any inter-RAT deployments that deploy a combination of such RATs.

[0080] According to a first example solution, when a UE detects a paging conflict, the UE signals the network to allow the network to modify the UE's paging configuration in an effort to resolve the paging conflict.

[0081] Figure 7 is a flow diagram illustrating example operations 700 performed by a UE according to this first example solution. Operations 700 may be performed, for example, by a UE (eg, UE 120 in wireless communication network 100) to resolve paging conflicts.

[0082] Operations 700 begin at 702 by detecting a conflict between configured paging occasions of at least two cells on which the UE is camped, based on a paging configuration. At 704, the UE signals an indication of the conflict to at least one of the cells. At 706, the UE receives information related to a new paging configuration designed to resolve the conflict.

[0083] Figure 88 is a flow chart illustrating example operations 800 of wireless communication by a network according to the first example solution. In other words, operations 800 may be considered as network-side operations complementary to the above-described operations 700. Operations 800 may be performed, for example, by a network entity (e.g., BS 110 in wireless communication network 100) or (multiple) TRPs to resolve paging conflicts.

[0084] Operations 800 begin by detecting, based on a paging configuration, a conflict between configured paging occasions of at least two cells on which a user equipment (UE) is camped at 802. At 804, a network entity provides information related to a new paging configuration designed to resolve the conflict.

[0085] According to this first example solution, the UE detects a paging conflict (eg, based on the current paging configurations of multiple cells on which the UE is camped) and notifies one of the cells to resolve the conflict by essentially requesting a new configuration of paging occasions.

[0086] When camped on a cell, the UE detects that a paging occasion configured by the cell conflicts with an existing paging configuration on another cell. In response, the UE may send an indication of the paging conflict to the cell.

[0087] In some cases, the indication may be provided via a (single-bit) flag or a multi-bit format in an existing RRC message format (e.g., an RRC resume message for inactive mode or an RRC setup request message for idle mode). The multi-bit indication may signal a request for a different paging frame (PF), or a delta index for a different PF, or a different paging occasion (PO), or a delta index for a different PO (as used herein, the term delta index generally refers to the difference between a calculated index according to the current configuration and a requested index).

[0088] In some cases, the indication may be sent in a newly defined RRC message after moving to connected mode. This new RRC message may include information about the paging occasion in another cell.

[0089] For idle mode UEs, the gNB calculates the UE's initial PF and PO based on the received 5G-S-TMSI (the leftmost 39 bits are sent in the RRC setup request, which are sufficient for this calculation). However, to help resolve paging conflicts, additional information may be sent, such as the rightmost 10 bits of the S-TMSI. This may be done in two steps if msg3 changes. In some cases, instead of the leftmost 39 bits, the contents may be changed to provide the leftmost 29 bits and the rightmost 10 bits, thereby keeping the payload to 39 bits.

[0090] For UEs in inactive mode, the gNB may obtain the UE's 5G-S-TMSI from another network entity (e.g., anchor gNB), for example based on the I-RNTI signaled in the RRC Resume Request. In some cases, the Xn Context Retrieval Request / Response may be modified to pass only (the last 10 digits of) the 5G-S-TMSI (assuming no UE context mobility).

[0091] For idle mode UEs, the gNB may obtain the last 10 digits of the 5G-S-TMSI via the RRC Setup Request message, while the leftmost 39 bits may be sent in the RRC Setup Request (as described above).

[0092] Regardless of how the gNB obtains the information, the UE then receives a new paging configuration (e.g., with a new PF, a new PO, and / or a new PO start offset). The PF and PO are initially calculated based on the parameters signaled in SIB1, and the UE identity and PO offset are also broadcast for all UEs. This dedicated configuration allows the NW to override the calculation for this specific UE. The new PF or new PO may be signaled by an incremental index (compared to the original PF and PO) instead of the full value for security reasons. The signaling may be done via an RRC Release message for inactive mode UEs (requires idle check) or via an RRC Reject message for idle and inactive mode UEs.

[0093] According to a second example solution, the network entity broadcasts several PO locations, where the UE can select a non-conflicting location to resolve paging conflicts.

[0094] Fig. 9 is a flow diagram illustrating example operations 900 performed by a UE according to the second example solution. Operations 900 may be performed, for example, by a UE (eg, UE 120 in wireless communication network 100) to resolve paging conflicts.

[0095] Operations 900 begin at 902 by detecting a conflict between configured paging occasions of at least two cells on which a UE is camped, based on a paging configuration. At 904, the UE receives information about a plurality of possible paging occasions for the cell from at least one of the cells. At 906, the UE monitors for paging in one of the possible paging occasions that is not affected by the conflict.

[0096] Fig.101 is a flow chart illustrating example operations 1000 of wireless communication by a network according to the second example solution. In other words, operations 1000 may be considered as network-side operations complementary to the above-described operations 900. Operations 1000 may be performed, for example, by a network entity (e.g., BS 110 in wireless communication network 100) or (multiple) TRPs to resolve paging conflicts.

[0097] Operations 1000 begin by signaling information about a plurality of possible paging occasions to a user equipment (UE) at 1002. At 1004, a network entity pages the UE in the possible paging occasions.

[0098] According to this second example solution, the gNB may broadcast several PO locations, where the UE may select a non-conflicting PO location (a location that does not conflict with another cell's PO). This approach may be considered relatively simple from a signaling complexity and standard specification perspective, albeit at the expense of paging overhead, since the same UE must be paged through multiple POs (since the gNB may not know which PO the UE chooses to monitor).

[0099] In some cases, the gNB may broadcast a list of index values ​​that may be added to the PF and / or PO to allow multiple PO locations for the UE (e.g., as increments relative to an already calculated PO or PF). The gNB then pages the UE at each possible PO location while the UE listens for paging at one of the POs that does not conflict with other cells.

[0100] In some cases, for inactive mode, the anchor gNB may send a modified UE identity index to other cells in the RAN based notification area (RNA). Assuming that all cells in the RNA use the same paging configuration, the anchor gNB may therefore know that the UE has a paging conflict. In some cases, the UE identity index is the last 10 digits of the 5G-S-TMSI, and the anchor gNB may send a different value that may allow for non-conflicting PFs and POs at cells in the RNA. In some cases, for example, when the UE is connected to the anchor gNB, the UE and the anchor gNB may agree on this modified UE value. This value may be updated when appropriate, for example during an RNA update.

[0101] According to a third example solution, the UE may choose to move to another cell to resolve the paging conflict.

[0102] Fig.11is a flow diagram illustrating example operations 1100 for wireless communications by a UE in accordance with certain aspects of the present disclosure. Operations 1100 may be performed, for example, by a UE (eg, UE 120 in wireless communication network 100) in accordance with the third example solution to resolve paging conflicts.

[0103] Operations 1100 begin at 1102 by detecting a conflict between configured paging occasions of at least two cells on which a UE is camped, based on a paging configuration. At 1104, the UE identifies a different cell on which to camp that is not affected by the conflict, wherein the different cell is not as good a candidate for cell selection as one of the conflicting cells in terms of a cell selection criterion. At 1106, the UE camps on the identified cell.

[0104] According to this third example solution, for example, the UE may try to camp on another cell without paging conflicts. Because the other cell may not be the best candidate cell to camp on in terms of signal quality, this approach may cause some performance degradation for both the UE and the network. However, this performance degradation may not be as severe as the performance degradation caused by UE unreachability due to paging conflicts. When the selected best cell has paging conflicts, the UE may camp on another cell and may select other cells, for example, after reading the SIB1 of the cell during cell reselection and / or by reading the SIB1 of the best cell and then performing cell reselection again.

[0105] The methods disclosed herein include one or more steps or actions for implementing these methods. Without departing from the scope of the claims, the method steps and / or actions may be interchangeable with each other. In other words, unless a specific order of steps or actions is specified, the order and / or use of specific steps and / or actions may be modified without departing from the scope of the claims.

[0106] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. For example, "at least one of a, b, or c" is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0107] As used herein, the term "determining" encompasses a wide variety of actions. For example, "determining" may include calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), ascertaining, and the like. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. Furthermore, "determining" may include solving, selecting, choosing, establishing, and the like.

[0108] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but to conform to the full scope consistent with the language of the claims, wherein, unless otherwise specified, the elements in the singular form do not mean "one and only one", but "one or more". Unless otherwise specified, the term "some" refers to one or more. All structural and functional equivalents of the elements throughout the various aspects described in this disclosure that are known or will be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly stated in the claims. No claim element can be interpreted under the provisions of Section 112(f) of Title 35 of the United States Code unless the element is explicitly stated using the phrase "device for..." or, in the case of a method claim, the element is stated using the phrase "step for..."

[0109] The various operations of the above method can be performed by any suitable component capable of performing the corresponding function. The component may include various hardware and / or software (multiple) components and / or (multiple) modules, including but not limited to circuits, application specific integrated circuits (ASICs) or processors. Generally, where operations are shown in the figures, these operations may have corresponding component plus function components with similar numbers.

[0110] The various illustrative logical blocks, modules, and circuits described in conjunction with the present disclosure may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), 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 alternatively, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors with a DSP core, or any other such configuration.

[0111] If implemented in hardware, an example hardware configuration may include a processing system in a wireless node. The processing system may be implemented using a bus architecture. Depending on the specific application of the processing system and the overall design constraints, the bus may include any number of interconnecting buses and bridges. The bus may link together various circuits including a processor, a machine-readable medium, and a bus interface. The bus interface may be used to connect a network adapter, etc., to the processing system via the bus. The network adapter may be used to implement the signal processing functions of the PHY layer. In the case of a user terminal 120 (see Figure 1 ), a user interface (e.g., keyboard, display, mouse, joystick, etc.) may also be connected to the bus. The bus may also link various other circuits, such as timing sources, peripherals, voltage regulators, power management circuits, etc., which are well known in the art and are not described further. The processor may be implemented with one or more general and / or special purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits that can execute software. Those skilled in the art will recognize how to best implement the functionality of the described processing system depending on the specific application and the overall design constraints imposed on the entire system.

[0112] If implemented in software, these functions may be stored or transmitted as one or more instructions or codes on a computer-readable medium. Software should be broadly understood to mean instructions, data, or any combination thereof, whether it refers to software, firmware, middleware, microcode, hardware description language, or other. Computer-readable media include computer storage media and communication media, and communication media include any media that facilitates the transfer of computer programs from one place to another. The processor may be responsible for managing the bus and general processing, including the execution of software modules stored on the machine-readable storage medium. The computer-readable storage medium may be coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Alternatively, the storage medium may be integrated into the processor. For example, the machine-readable medium may include a transmission line, a carrier modulated by data, and / or a computer-readable storage medium having instructions stored thereon separated from the wireless node, all of which may be accessed by the processor through a bus interface. Alternatively or additionally, the machine-readable medium or any part thereof may be integrated into the processor, such as in the case of a cache and / or a general register file. For example, examples of machine-readable storage media may include RAM (random access memory), flash memory, ROM (read-only memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory), EEPROM (electrically erasable programmable read-only memory), registers, magnetic disks, optical disks, hard drives, or any other suitable storage media or any combination thereof. Machine-readable media may be embodied in a computer program product.

[0113] A software module may include a single instruction or multiple instructions, and may be distributed across several different code segments, between different programs, and across multiple storage media. A computer-readable medium may include multiple software modules. A software module includes instructions that, when executed by a device such as a processor, cause a processing system to perform various functions. A software module may include a transmission module and a reception module. Each software module may reside in a single storage device, or may be distributed across multiple storage devices. For example, when a triggering event occurs, a software module may be loaded from a hard drive into a RAM. During the execution of a software module, a processor may load some instructions into a cache to increase access speed. Then, one or more cache lines may be loaded into a general register file for execution by a processor. When referring to the functions of the following software modules, it should be understood that such functions are implemented by a processor when instructions from the software module are executed.

[0114] In addition, any connection is properly referred to as a computer-readable medium. For example, if a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (such as infrared (IR), radio, and microwave) is used to send software from a website, server, or other remote source, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (such as infrared, radio, and microwave) is included in the definition of the medium. Disks and optical disks as used herein include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, wherein disks generally reproduce data magnetically, and optical discs reproduce data optically with lasers. Therefore, in some aspects, a computer-readable medium may include a non-temporary computer-readable medium (e.g., a tangible medium). In addition, for other aspects, a computer-readable medium may include a temporary computer-readable medium (e.g., a signal). The above combination should also be included in the scope of computer-readable media.

[0115] Thus, certain aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include a computer-readable medium having instructions stored (and / or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein. For example, a computer program product for performing the operations described herein and Figure 7-Figure 11 The operations are shown in the instructions.

[0116] In addition, it should be understood that the modules and / or other suitable components for performing the methods and techniques described herein can be downloaded and / or otherwise obtained by the user terminal and / or base station. For example, such a device can be coupled to a server to facilitate the transfer of components for performing the methods described herein. Alternatively, the various methods described herein can be via a storage component (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or a floppy disk), so that the user terminal and / or base station can obtain the various methods when the storage component is coupled to the device or provided to the device. In addition, any other suitable technology for providing the methods and techniques described herein to the device can be utilized.

[0117] It is to be understood that the claims are not limited to the precise configuration and components described above. Various modifications, changes and variations may be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.

Claims

1. A method for wireless communication by a user equipment UE, comprising: Based on the paging configuration, detecting a conflict between configured paging occasions of at least two cells on which the UE is camped; signaling a multi-bit indication of the conflict to at least one of the cells, wherein the signaling is provided via a radio resource control (RRC) message, the RRC message requesting at least one of a different paging frame or a different paging occasion, wherein the request for a different paging frame or paging occasion is signaled via a delta index relative to a currently configured paging frame or paging occasion affected by the conflict, wherein the delta index refers to a difference between a calculated index from the currently configured paging frame or paging occasion and a requested index from the requested paging frame or paging occasion; as well as Information related to a new paging configuration designed to resolve the conflict is received, wherein the information related to the new paging configuration includes modified identification information of the UE.

2. The method according to claim 1, wherein the RRC message comprises at least one of an RRC resume message for an inactive mode or an RRC establishment request message for an idle mode.

3. The method according to claim 2, wherein: The RRC establishment request message for the idle mode includes identification information of the UE used for paging occasion calculation; The UE identification information used for paging occasion calculation includes a set of least significant bits of a serving temporary mobile subscriber identity S-TMSI allocated to the UE; and The RRC setup request message also includes a set of most significant bits of the S-TMSI.

4. The method according to claim 1, wherein: The indication is provided via the RRC message after moving to a connected mode in one of the cells; and The indication includes information about paging occasions in other cells.

5. The method according to claim 1, wherein: Information about the new paging configuration is provided via a radio resource control, RRC, message indicating an incremental index relative to a currently configured paging frame or paging occasion; The RRC message includes at least one of an RRC release message or an RRC reject message.

6. The method of claim 1, further comprising providing the modified identification information when performing a RAN-based notification area (RNA) update.

7. A method for wireless communication by a network entity, comprising: Based on the paging configuration, detecting a conflict between configured paging occasions of at least two cells on which the user equipment UE is camped; as well as providing information related to a new paging configuration designed to resolve the conflict, wherein the conflict is detected based on an indication of a signaling notification received from the UE, wherein the information related to the new paging configuration includes modified identification information of the UE, wherein: The indication is provided via a radio resource control (RRC) message from the UE, the UE requesting at least one of a different paging frame or a different paging occasion; and The RRC message comprises at least one of an RRC recovery message or an RRC setup request message and wherein the request for a different paging frame or paging occasion is signaled via a delta index relative to a currently configured paging frame or paging occasion affected by the conflict, wherein the delta index refers to a difference between a calculated index according to the currently configured paging frame or paging occasion and a requested index according to the requested paging frame or paging occasion.

8. The method according to claim 7, wherein the RRC establishment request message includes identification information of the UE used for paging occasion calculation.

9. The method according to claim 8, wherein: The UE identification information used for paging occasion calculation includes a set of least significant bits of a serving temporary mobile subscriber identity S-TMSI allocated to the UE; and The RRC setup request message also includes a set of most significant bits of the S-TMSI.

10. The method according to claim 7, wherein: The indication is provided via the RRC message after moving to a connected mode in one of the cells; and The indication includes information about paging occasions in other cells.

11. The method according to claim 7, wherein: The information about the new paging configuration is provided via a radio resource control (RRC) message, the RRC message indicating an incremental index relative to a currently configured paging frame or paging occasion; The RRC message includes at least one of an RRC release message or an RRC reject message.

12. The method of claim 7, wherein the conflict is detected based on at least one of: Information about paging occasions in other cells; or The identification information of the UE is obtained from another network entity. The method of claim 12 , wherein the identification information is received via a context retrieval message. The method according to claim 7 , further comprising providing the modified identification information to other cells.

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