Handling slice deregistration inactiity timer and PLMN not allowed to operate at present user equipment location timer in power saving optimization in mobile communications
The proposed schemes address timer management issues in 3GPP specifications by keeping specific timers running and managing entries during power saving modes, optimizing power saving and network access in mobile communications.
Patent Information
- Application Number
- PCT/CN2025/092268
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-02
- Filing Date
- 2025-04-30
- Publication Date
- 2025-11-06
AI Technical Summary
Existing 3GPP specifications fail to effectively manage slice deregistration inactivity timers and PLMN not allowed to operate at present UE location timers during power saving modes, leading to inconsistent timer management and potential network access issues.
Proposed schemes to keep specific timers running and manage associated entries during unavailability periods, power saving modes, and MICO mode activation, ensuring timely removal of S-NSSAI and PLMN entries to optimize power saving in mobile communications.
Enhances power saving optimization by maintaining timer functionality and network access efficiency, preventing timer stagnation and ensuring seamless network operations during power saving modes.
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Figure CN2025092268_06112025_PF_FP_ABST
Abstract
Description
HANDLING SLICE DEREGISTRATION INACTIITY TIMER AND PLMN NOT ALLOWED TO OPERATE AT PRESENT USER EQUIPMENT LOCATION TIMER IN POWER SAVING OPTIMIZATION IN MOBILE COMMUNICATIONSCROSS REFERENCE TO RELATED PATENT APPLICATION (S)
[0001] The present disclosure claims the priority benefit of Indian Patent Application No. 202421034936, filed 02 May 2024, respectively, the content of which herein being incorporated by reference in its entirety.TECHNICAL FIELD
[0002] The present disclosure is generally related to mobile communications and, more particularly, to handling slice deregistration inactivity timer and public land mobile network (PLMN) not allowed to operate at present user equipment (UE) location timer in power saving optimization in mobile communications.BACKGROUND
[0003] In wireless communications such as mobile communications under the current 3rd Generation Partnership Project (3GPP) specification, when a power saving mode (PSM) is activated, all non-access stratum (NAS) timers are stopped and associated procedures are aborted except for timers T3412, T3346, T3396, T3447, any backoff timers, and the timer T controlling the periodic search for home PLMN (HPLMN) or equivalent home PLMN (EHPLMN) (if an EHPLMN list is present) or higher prioritized PLMNs (see 3GPP Technical Specification (TS) 23.122 [6] ) .
[0004] If an unavailability period is activated due to discontinuous coverage (see 3GPP TS 23.401
[0010] ) , all NAS timers are stopped and associated procedures are aborted except for timers T3412, T3346, T3396, T3447, T3448, any backoff timers, T3245, T3247, the timer T controlling the periodic search for HPLMN or EHPLMN (if the EHPLMN list is present) or higher prioritized PLMNs, and the timer TSENSE controlling the periodic search for PLMNs satisfying the operator controlled signal level threshold (see 3GPP TS 23.122 [6] ) and a user equipment (UE) may deactivate access stratum.
[0005] When the unavailability period is activated, all NAS timers are stopped and associated procedures are aborted except for timers T3512, T3346, T3447, T3448, T3396, T3526, T3584, T3585, T3587, any back-off timers, T3245, T3247, the timer T controlling the periodic search for HPLMN or EHPLMN or higher prioritized PLMNs, and the timer TSENSE controlling the periodic search for PLMNs satisfying the operator controlled signal level threshold (see 3GPP TS 23.122 [5] ) , the UE is to reset the registration attempt counter and service request attempt counter.
[0006] When a mobile initiated connection only (MICO) mode is activated, all NAS timers are stopped and associated procedures are aborted except for timers T3512, T3346, T3447, T3448, T3396, T3526, T3584, T3585, T3587, any back-off timers, T3245, T3247, and the timer T controlling the periodic search for HPLMN or EHPLMN or higher prioritized PLMNs (see 3GPP TS 23.122 [5] ) .
[0007] Under the 3GPP specifications, the slice deregistration inactivity timer is: (a) started when there is no established protocol data unit (PDU) session, including any multiple-access (MA) PDU session, associated with the single-network slice selection assistance information (S-NSSAI) over the corresponding access type; and (b) stopped and reset when at least a PDU session, including any MA PDU session, associated with the S-NSSAI is successfully established over the corresponding access type (s) or the S-NSSAI is removed from the allowed network slice selection assistance information (NSSAI) . Upon expiry of the slice deregistration inactivity timer, the Access and Mobility Management Function (AMF) locally removes the S-NSSAI from the allowed NSSAI over the access type. In addition, the AMF may send a CONFIGURATION UPDATE COMMAND message to the UEs with the new allowed NSSAI. The UE includes the on-demand S-NSSAI which the UE requests in the requested NSSAI during the registration procedure. Upon expiry of the slice deregistration inactivity timer, the UE locally removes the S-NSSAI from the allowed NSSAI over the access type.
[0008] For 3GPP satellite next-generation radio access network (NG-RAN) , the UE is to store a list of "PLMNs not allowed to operate at the present UE location" . Each entry consists of: (a) the PLMN identity of the PLMN which sent a message including 5th Generation Mobility Management (5GMM) cause value #78 "PLMN not allowed to operate at the present UE location" via satellite NG-RAN access technology; and (b) the geographical location, if known by the UE, where 5GMM cause value #78 was received on satellite NG-RAN access technology; and (c) if the geographical location exists, a UE implementation specific distance value.
[0009] Before storing a new entry in the list, the UE is to delete any existing entry with the same PLMN identity. Upon storing a new entry, the UE starts a timer associated with the entry with an implementation specific value that shall not be set to a value smaller than the timer value indicated by the network in the Lower bound timer value information element (IE) , if any. If the lower bound timer value IE was not provided by the network, the value of the timer is to be set based on the UE implementation.
[0010] The UE is allowed to attempt to access a PLMN via satellite NG-RAN access technology which is part of the list of "PLMNs not allowed to operate at the present UE location" only if: (a) the current UE location is known, a geographical location is stored for the entry of this PLMN, and the distance to the current UE location is larger than a UE implementation specific value; or (b) the access is for emergency services. It is noteworthy that when the UE is accessing network for emergency services, it is up to the network operator and regulatory policies whether the network needs to determine if the UE is in a location where network is not allowed to operate.
[0011] The list is to accommodate three or more entries. The maximum number of entries is an implementation decision. When the list is full and a new entry needs to be inserted, the oldest entry is to be deleted. Moreover, each entry is to be removed if, for the entry: (a) the UE successfully registers via satellite NG-RAN access technology to the PLMN stored in the entry except when the UE registers for emergency services; or (b) the timer associated with the entry expires.
[0012] If the network accepts the use of MICO mode and indicates an active time value to the UE in a successful registration procedure, the UE is to start the timer T3324 with the value received from the network after entering 5GMM-IDLE mode over 3GPP access. At the expiry of the timer T3324, the UE may activate MICO mode by entering the state 5GMM-REGISTERED. NO-CELL-AVAILABLE if the UE is in the 5GMM-REGISTERED. NORMAL-SERVICE or 5GMM-REGISTERED. NON-ALLOWED-SERVICE (as described in subclause 5.3.5.2) state for 3GPP access. If the UE enters 5GMM-CONNECTED mode over 3GPP access when the timer T3324 is running, the UE is to stop the timer T3324.
[0013] However, when the timer associated with an entry in the list of "PLMNs not allowed to operate at the present UE location" is running and an unavailability period is activated or the MICO mode is activated or the PSM mode is activated, the UE stops the timer. Yet, if the timer is stopped, the entry would never be removed from the list of "PLMNs not allowed to operate at the present UE location" . Moreover, when a slice deregistration inactivity timer is running and the unavailability period is activated or the MICO mode is activated, the UE stops the timer. Nevertheless, if the timer is stopped, the S-NSSAI would never be removed from the allowed NSSAI over the access type. Furthermore, timer T3324 is stopped when the unavailability period is activated. However, if timer T3324 is stopped due to unavailability, the UE would never activate the MICO mode.
[0014] Therefore, there is a need for a solution of handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications.SUMMARY
[0015] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits, and advantages of the novel and non-obvious techniques described herein. Select implementations are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
[0016] An objective of the present disclosure is to propose solutions or schemes that address the issue (s) described herein. More specifically, various schemes proposed in the present disclosure are believed to provide solutions pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications. It is believed that implementations of one or more of the schemes proposed herein may address or otherwise alleviate the issues described above.
[0017] In one aspect, a method may involve a UE detecting that a condition exist and that a specific timer is running. The method may also involve keeping the specific timer running in response to the detecting. The condition includes an unavailability period being activated or a power saving optimization being activated.
[0018] In another aspect, a method may involve a UE activating an unavailability period when a specific timer is running. The method may also involve the UE keeping the specific timer running in response to activating the unavailability period.
[0019] It is noteworthy that, although the description provided herein may be in the context of certain radio access technologies, networks, and network topologies such as 5G NR / Beyond Fifth-Generation (B5G) mobile communications, the proposed concepts, schemes and any variation (s) / derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies such as, for example and without limitation, 4G / Long-Term Evolution (LTE) , LTE-Advanced, LTE-Advanced Pro, Internet-of-Things (IoT) , Narrow Band Internet of Things (NB-IoT) , Industrial Internet of Things (IIoT) , vehicle-to-everything (V2X) , and non-terrestrial network (NTN) communications. Thus, the scope of the present disclosure is not limited to the examples described herein.BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate implementations of the disclosure and, together with the description, serve to explain the principles of the disclosure. It is appreciable that the drawings are not necessarily in scale as some components may be shown to be out of proportion than the size in actual implementation in order to clearly illustrate the concept of the present disclosure.
[0021] FIG. 1 is a diagram of an example network environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
[0022] FIG. 2 is a block diagram of an example communication system under a proposed scheme in accordance with the present disclosure.
[0023] FIG. 3 is a flowchart of a second example process under a proposed scheme in accordance with the present disclosure.
[0024] FIG. 4 is a flowchart of a second example process under a proposed scheme in accordance with the present disclosure. DETAILED DESCRIPTION OF PREFERRED IMPLEMENTATIONS
[0025] Detailed embodiments and implementations of the claimed subject matters are disclosed herein. However, it shall be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matters which may be embodied in various forms. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that description of the present disclosure is thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. In the description below, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations. Overview
[0026] Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and / or solutions pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications. According to the present disclosure, a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
[0027] FIG. 1 illustrates an example network environment 100 in which various solutions and schemes in accordance with the present disclosure may be implemented. FIG. 2 ~ FIG. 4 illustrate examples of implementation of various proposed schemes in network environment 100 in accordance with the present disclosure. The following description of various proposed schemes is provided with reference to FIG. 1 ~ FIG. 4.
[0028] Referring to FIG. 1, network environment 100 may involve a UE 110, such as a mobile device or smartphone, in wireless communication with a wireless network 120 as part of a communication network. The wireless network 120 may be one or more public land mobile networks (PLMNs) including 5G / NR domain, 4G / LTE domain, and 2nd Generation / 3rd Generation (2G / 3G) domain. UE 110 may initially be in wireless communication with wireless network 120 via a base station or network node 125 (e.g., an eNB, gNB or transmit-receive point (TRP)) . In network environment 100, UE 110 and the wireless network 120 may implement various schemes pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications in accordance with the present disclosure, as described herein.
[0029] It is noteworthy that, while the various proposed schemes may be individually or separately described below, in actual implementations some or all of the proposed schemes may be utilized or otherwise implemented jointly. Of course, each of the proposed schemes may be utilized or otherwise implemented individually or separately. Moreover, as used herein, a lower layer may refer to a layer in the 5GMM protocol stack that is lower than the radio resource control (RRC) layer, such as a packet data convergence protocol (PDCP) layer, a radio control link (RLC) layer, a medium access control (MAC) layer, a physical (PHY) layer, or so forth.
[0030] Under a first proposed scheme in accordance with the present disclosure, when: (a) an unavailability period is activated; or (b) the unavailability period is activated due to a discontinuous coverage; or (c) an access stratum is deactivated due to the discontinuous coverage; or (d) a PSM mode is activated; or (e) a MICO mode is activated, and a timer associated with an entry in a list of "PLMNs not allowed to operate at the present UE location" is running, UE 110 may perform one or more actions. Such one or more actions may include, for example: (1) keeping the timer associated with the entry in the list of "PLMNs not allowed to operate at the present UE location" running (e.g., not stopping the timer) ; and / or (2) removing associated entries in the list of "PLMNs not allowed to operate at the present UE location. ”
[0031] Under a second proposed scheme in accordance with the present disclosure, when: (a) the unavailability period is activated; or (b) the unavailability period is activated due to a discontinuous coverage; or (c) the access stratum is deactivated due to the discontinuous coverage; or (d) the MICO mode is activated, and a slice deregistration inactivity timer is running, UE 110 may perform one or more actions. Such one or more actions may include, for example: (1) keeping the slice deregistration inactivity timer running (e.g., not stopping the timer) ; and / or (2) removing the S-NSSAI from the allowed NSSAI over the access type.
[0032] Under a third proposed scheme in accordance with the present disclosure, when UE 110 activates the unavailability period and / or when timer t3324 is running, UE 110 may perform one or more actions. Such one or more actions may include, for example: (1) activating the MICO mode; and / or (2) activating the PSM; and / or (3) not stopping timer T3324, if running (e.g., keeping timer T3324 running) .
[0033] As a first implementation example, when the unavailability period is activated, all NAS timers are stopped and associated procedures aborted except for timers T3512, T3324, T3346, T3447, T3448, T3396, T3526, T3584, T3585, T3587, any back-off timers, T3245, T3247, the timer T controlling the periodic search for HPLMN or EHPLMN or higher prioritized PLMNs, the timer TSENSE controlling the periodic search for PLMNs satisfying the operator controlled signal level threshold, the timer TF, the timer TG (see 3GPP TS 23.122 [5] ) , the timer TNSU and the timer instance associated with the entry in the list of "PLMNs not allowed to operate at the present UE location" , the UE is to reset the registration attempt counter and service request attempt counter.
[0034] As a second implementation example, if the unavailability period is activated due to discontinuous coverage (see 3GPP TS 23.401
[0010] ) , all NAS timers are stopped and associated procedures aborted except for T3412, T3324, T3346, T3396, T3447, T3448, any backoff timers, T3245, T3247, the timer T controlling the periodic search for HPLMN or EHPLMN (if EHPLMN list is present) or higher prioritized PLMNs, the timer TSENSE controlling the periodic search for PLMNs satisfying the operator controlled signal level threshold, the timer TD, the timer TE, the timer TH (see 3GPP TS 23.122 [6] ) and the timer instance associated with the entry in the list of "PLMNs not allowed to operate at the present UE location" and the UE may deactivate access stratum. Illustrative Implementations
[0035] FIG. 2 illustrates an example communication system 200 having at least an example apparatus 210 and an example apparatus 220 in accordance with an implementation of the present disclosure. Each of apparatus 210 and apparatus 220 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications, including the various schemes described above with respect to various proposed designs, concepts, schemes, systems and methods described above, including network environment 100, as well as processes described below.
[0036] Each of apparatus 210 and apparatus 220 may be a part of an electronic apparatus, which may be a network apparatus or a UE (e.g., UE 110) , such as a portable or mobile apparatus, a wearable apparatus, a vehicular device or a vehicle, a wireless communication apparatus or a computing apparatus. For instance, each of apparatus 210 and apparatus 220 may be implemented in a smartphone, a smart watch, a personal digital assistant, an electronic control unit (ECU) in a vehicle, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer. Each of apparatus 210 and apparatus 220 may also be a part of a machine type apparatus, which may be an IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a roadside unit (RSU) , a wire communication apparatus or a computing apparatus. For instance, each of apparatus 210 and apparatus 220 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center. When implemented in or as a network apparatus, apparatus 210 and / or apparatus 220 may be implemented in an eNB in an LTE, LTE-Advanced or LTE-Advanced Pro network or in a gNB or TRP in a 5G network, an NR network, or an IoT network.
[0037] In some implementations, each of apparatus 210 and apparatus 220 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more complex-instruction-set-computing (CISC) processors, or one or more reduced-instruction-set-computing (RISC) processors. In the various schemes described above, each of apparatus 210 and apparatus 220 may be implemented in or as a network apparatus or a UE. Each of apparatus 210 and apparatus 220 may include at least some of those components shown in FIG. 2 such as a processor 212 and a processor 222, respectively, for example. Each of apparatus 210 and apparatus 220 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of apparatus 210 and apparatus 220 are neither shown in FIG. 2 nor described below in the interest of simplicity and brevity.
[0038] In one aspect, each of processor 212 and processor 222 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC or RISC processors. That is, even though a singular term “a processor” is used herein to refer to processor 212 and processor 222, each of processor 212 and processor 222 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure. In another aspect, each of processor 212 and processor 222 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and / or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure. In other words, in at least some implementations, each of processor 212 and processor 222 is a special-purpose machine specifically designed, arranged, and configured to perform specific tasks including those pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications in accordance with various implementations of the present disclosure.
[0039] In some implementations, apparatus 210 may also include a transceiver 216 coupled to processor 212. Transceiver 216 may be capable of wirelessly transmitting and receiving data. In some implementations, transceiver 216 may be capable of wirelessly communicating with different types of wireless networks of different radio access technologies (RATs) . In some implementations, transceiver 216 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 216 may be equipped with multiple transmit antennas and multiple receive antennas for multiple-input multiple-output (MIMO) wireless communications. In some implementations, apparatus 220 may also include a transceiver 226 coupled to processor 222. Transceiver 226 may include a transceiver capable of wirelessly transmitting and receiving data. In some implementations, transceiver 226 may be capable of wirelessly communicating with different types of UEs / wireless networks of different RATs. In some implementations, transceiver 226 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 226 may be equipped with multiple transmit antennas and multiple receive antennas for MIMO wireless communications.
[0040] In some implementations, apparatus 210 may further include a memory 214 coupled to processor 212 and capable of being accessed by processor 212 and storing data therein. In some implementations, apparatus 220 may further include a memory 224 coupled to processor 222 and capable of being accessed by processor 222 and storing data therein. Each of memory 214 and memory 224 may include a type of random-access memory (RAM) such as dynamic RAM (DRAM) , static RAM (SRAM) , thyristor RAM (T-RAM) and / or zero-capacitor RAM (Z-RAM) . Alternatively, or additionally, each of memory 214 and memory 224 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and / or electrically erasable programmable ROM (EEPROM) . Alternatively, or additionally, each of memory 214 and memory 224 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and / or phase-change memory.
[0041] Each of apparatus 210 and apparatus 220 may be a communication entity capable of communicating with each other using various proposed schemes in accordance with the present disclosure. For illustrative purposes and without limitation, a description of capabilities of apparatus 210, as a UE (e.g., UE 110) , and apparatus 220, as a network node (e.g., network node 125) of a network (e.g., wireless network 120 as a 5G / NR mobile network) , is provided below in the context of example processes 300 and 400. Illustrative Processes
[0042] FIG. 3 illustrates an example process 300 in accordance with an implementation of the present disclosure. Process 300 may represent an aspect of implementing various proposed designs, concepts, schemes, systems and methods described above. More specifically, process 300 may represent an aspect of the proposed concepts and schemes pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications in accordance with the present disclosure. Process 300 may include one or more operations, actions, or functions as illustrated by one or more of blocks 310 and 320. Although illustrated as discrete blocks, various blocks of process 300 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks / sub-blocks of process 300 may be executed in the order shown in FIG. 3 or, alternatively, in a different order. Furthermore, one or more of the blocks / sub-blocks of process 300 may be executed repeatedly or iteratively. Process 300 may be implemented by or in apparatus 210 and apparatus 220 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 300 is described below in the context of apparatus 210 as a UE (e.g., UE 110) and apparatus 220 as a communication entity such as a network node or base station (e.g., network node 125) of a network (e.g., wireless network 120) . Process 300 may begin at block 310.
[0043] At 310, process 300 may involve processor 212 of apparatus 210, as UE 110, detecting that a condition exist and that a specific timer is running. The condition may include: (a) an unavailability period being activated; or (b) a power saving optimization being activated. Process 300 may proceed from 310 to 320.
[0044] At 320, process 300 may involve processor 212 keeping the specific timer running in response to the detecting.
[0045] In some implementations, the specific timer may include a timer associated with an entry in a list of PLMNs not allowed to operate at a present UE location. In some implementations, in response to the detecting, process 300 may further involve processor 212 removing associated entries in the list of PLMNs not allowed to operate at the present UE location.
[0046] In some implementations, the specific timer may include a slice deregistration inactivity timer. In some implementations, in response to the detecting, process 300 may further involve processor 212 removing an S-NSSAI from an allowed NSSAI over an access type.
[0047] In some implementations, the power saving optimization may include a PSM.
[0048] In some implementations, the power saving optimization may include a MICO mode.
[0049] In some implementations, the condition may alternatively include: (c) the unavailability period being activated due to a discontinuous coverage; or (d) an access stratum being deactivated due to the discontinuous coverage.
[0050] FIG. 4 illustrates an example process 400 in accordance with an implementation of the present disclosure. Process 400 may represent an aspect of implementing various proposed designs, concepts, schemes, systems and methods described above. More specifically, process 400 may represent an aspect of the proposed concepts and schemes pertaining to handling slice deregistration inactivity timer and PLMN not allowed to operate at present UE location timer in power saving optimization in mobile communications in accordance with the present disclosure. Process 400 may include one or more operations, actions, or functions as illustrated by one or more of blocks 410 and 420. Although illustrated as discrete blocks, various blocks of process 400 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks / sub-blocks of process 400 may be executed in the order shown in FIG. 4 or, alternatively, in a different order. Furthermore, one or more of the blocks / sub-blocks of process 400 may be executed repeatedly or iteratively. Process 400 may be implemented by or in apparatus 210 and apparatus 220 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 400 is described below in the context of apparatus 210 as a UE (e.g., UE 110) and apparatus 220 as a communication entity such as a network node or base station (e.g., network node 125) of a network (e.g., wireless network 120) . Process 400 may begin at block 410.
[0051] At 410, process 400 may involve processor 212 of apparatus 210, as UE 110, activating an unavailability period when a specific timer is running. Process 400 may proceed from 410 to 420.
[0052] At 420, process 400 may involve processor 212 keeping the specific timer running in response to activating the unavailability period.
[0053] In some implementations, the specific timer may include a timer T3324.
[0054] In some implementations, in response to activating the unavailability period, process 400 may further involve processor 212 activating a PSM.
[0055] In some implementations, in response to activating the unavailability period, process 400 may further involve processor 212 activating a MICO mode. Additional Notes
[0056] The herein-described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected" , or "operably coupled" , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable" , to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and / or physically interacting components and / or wirelessly interactable and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.
[0057] Further, with respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.
[0058] Moreover, it will be understood by those skilled in the art that, in general, terms used herein, and especially in the appended claims, e.g., bodies of the appended claims, are generally intended as “open” terms, e.g., the term “including” should be interpreted as “including but not limited to, ” the term “having” should be interpreted as “having at least, ” the term “includes” should be interpreted as “includes but is not limited to, ” etc. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to implementations containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an, " e.g., “a” and / or “an” should be interpreted to mean “at least one” or “one or more; ” the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations, " without other modifiers, means at least two recitations, or two or more recitations. Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. In those instances where a convention analogous to “at least one of A, B, or C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. It will be further understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B. ”
[0059] From the foregoing, it will be appreciated that various implementations of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. Accordingly, the various implementations disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
Claims
1.A method, comprising:detecting, by a processor of a user equipment (UE) , that a condition exist and that a specific timer is running; andkeeping, by the processor, the specific timer running responsive to the detecting,wherein the condition comprises:an unavailability period being activated; ora power saving optimization being activated.2.The method of Claim 1, wherein the specific timer comprises a timer associated with an entry in a list of public land mobile networks (PLMNs) not allowed to operate at a present UE location.3.The method of Claim 2, responsive to the detecting, further comprising:removing, by the processor, associated entries in the list of PLMNs not allowed to operate at the present UE location.4.The method of Claim 1, wherein the specific timer comprises a slice deregistration inactivity timer.5.The method of Claim 4, responsive to the detecting, further comprising:removing, by the processor, a single-network slice selection assistance information (S-NSSAI) from an allowed network slice selection assistance information (NSSAI) over an access type.6.The method of Claim 1, wherein the power saving optimization comprises a power saving mode (PSM) .7.The method of Claim 1, wherein the power saving optimization comprises a mobile initiated connection only (MICO) mode.8.The method of Claim 1, wherein the condition alternatively comprises:the unavailability period being activated due to a discontinuous coverage; oran access stratum being deactivated due to the discontinuous coverage.9.A method, comprising:activating, by a processor of a user equipment (UE) , an unavailability period when a specific timer is running; andkeeping, by the processor, the specific timer running responsive to activating the unavailability period.10.The method of Claim 9, wherein the specific timer comprises a timer T3324.11.The method of Claim 9, responsive to activating the unavailability period, further comprising:activating, by the processor, a power saving mode (PSM) .12.The method of Claim 9, responsive to activating the unavailability period, further comprising:activating, by the processor, a mobile initiated connection only (MICO) mode.13.An apparatus implementable in a user equipment (UE) , comprising:a transceiver configured to communicate wirelessly; anda processor coupled to the transceiver and configured to perform operations comprising:detecting that a condition exist and that a specific timer is running; andkeeping the specific timer running responsive to the detecting,wherein the condition comprises:an unavailability period being activated; ora power saving optimization being activated.14.The apparatus of Claim 13, wherein the specific timer comprises a timer associated with an entry in a list of public land mobile networks (PLMNs) not allowed to operate at a present UE location.15.The apparatus of Claim 14, responsive to the detecting, further comprising:removing, by the processor, associated entries in the list of PLMNs not allowed to operate at the present UE location.16.The apparatus of Claim 13, wherein the specific timer comprises a slice deregistration inactivity timer.17.The apparatus of Claim 16, responsive to the detecting, further comprising:removing, by the processor, a single-network slice selection assistance information (S-NSSAI) from an allowed network slice selection assistance information (NSSAI) over an access type.18.The apparatus of Claim 13, wherein the power saving optimization comprises a power saving mode (PSM) .19.The apparatus of Claim 13, wherein the power saving optimization comprises a mobile initiated connection only (MICO) mode.20.The apparatus of Claim 13, wherein the condition alternatively comprises:the unavailability period being activated due to a discontinuous coverage; oran access stratum being deactivated due to the discontinuous coverage.
Citation Information
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