Access identity and access category or RRC establishment cause for optimized control plane data transport in mobile communications
The proposed methods and apparatuses address the ambiguity in UE behavior for access category and RRC establishment cause, optimizing control plane data transport by providing clear determination criteria, enhancing efficiency across diverse mobile communication systems.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MEDIATEK SINGAPORE PTE LTD
- Filing Date
- 2025-11-12
- Publication Date
- 2026-05-21
AI Technical Summary
The current 3GPP specification is unclear about UE behavior in determining access category and RRC establishment cause for optimized control plane data transport, particularly in cases where NAS protocol header optimization is supported.
Proposed methods and apparatuses in UEs and networks to determine access category and RRC establishment cause for optimized control plane data transport, including new or existing access attempts and causes, to facilitate efficient data transmission.
Provides clear guidelines for determining access identity and RRC establishment cause, optimizing control plane data transport in mobile communications, applicable across various radio access technologies and network topologies.
Smart Images

Figure CN2025134490_21052026_PF_FP_ABST
Abstract
Description
ACCESS IDENTITY AND ACCESS CATEGORY OR RRC ESTABLISHMENT CAUSE FOR OPTIMIZED CONTROL PLANE DATA TRANSPORT IN MOBILE COMMUNICATIONSCROSS REFERENCE TO RELATED PATENT APPLICATION (S)
[0001] The present disclosure claims the priority benefit of India Patent Application Nos. 202421087186 and 202521053998, filed 12 November 2024 and 04 June 2025, respectively, the contents of which herein being incorporated by reference in their entirety.TECHNICAL FIELD
[0002] The present disclosure is generally related to mobile communications and, more particularly, to access identity and access category or radio resource control (RRC) establishment cause for optimized control plane data transport in mobile communications.BACKGROUND
[0003] In wireless communications such as mobile communications under the current 3rd Generation Partnership Project (3GPP) specification, with respect to non-access stratum (NAS) protocol header optimization (e.g., in 4th Generation (4G) Enhanced Messaging Service (EMS) ) , the purpose of the control plane small data transport procedure is to control plane data in an encapsulated form between the Mobility Management Entity (MME) of a network and a user equipment (UE) . The procedure may be initiated by the UE or the network and can be used when the UE is attached for Evolved Packet System (EPS) services in an IDLE or CONNECTED state. With respect to UE-initiated control plane small data transport, upon request from an application to send a control plane data encapsulated in a UPLINK CP SMALL DATA TRANSPORT message, the Enhanced Mobility Management (EMM) entity in the UE initiates the procedure for sending the CP SMALL DATA TRANSPORT message including a data payload requested by the application. The content, coding and interpretation of the data payload are dependent on the application. With respect to network-initiated control plane small data transport, upon request from an application to send a control plane data encapsulated in a DOWNLINK CP SMALL DATA TRANSPORT message, the EMM entity in the MME of the network initiates the procedure for sending the CP SMALL DATA TRANSPORT message including a data payload requested by the application. The content, coding and interpretation of the data payload are dependent on the application.
[0004] When the UE and / or network support (s) NAS protocol header optimization and need (s) to send an optimized control plane data in a message from the UE to the network (e.g., CP SMALL DATA TRANSPORT message etc. ) , the UE behavior is undefined in the current 3GPP specification in terms of determining the access category and RRC establishment case. Moreover, when the UE and / or network support (s) NAS protocol header optimization and need (s) to send an optimized control plane data in a message from the UE to the network (e.g., in EMM TRANSPORT message in 4G / EPS) , the UE behavior is undefined in the current 3GPP specification in terms of determining the access category and RRC establishment case for the procedure / message.
[0005] Therefore, there is a need for a solution of access identity and access category or RRC establishment cause for optimized control plane data transport in mobile communications.SUMMARY
[0006] 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.
[0007] 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 access identity and access category or RRC establishment cause for optimized control plane data transport 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.
[0008] In one aspect, a method may involve a UE determining that at least one of the UE or a network supports NAS protocol header optimization and that there is a need to send a control plane data in a message from the UE to the network. In response to the determining, the method may involve the UE further determining an access category or a RRC establishment cause, for transmitting the message to the network, with either or both of the following: (1) a new or existing access attempt or category; and (2) a new or existing RRC establishment cause.
[0009] In another aspect, a method may involve a UE determining that at least one of the UE or a network supports NAS protocol header optimization and that there is a need to perform a data transport procedure to send user data from the UE to the network. In response to the determining, the method may involve the UE performing the following: (a) establishing a NAS signaling connection for the data transport procedure; and (b) transmitting a message to the network with one or more features.
[0010] In yet another aspect, an apparatus implementable in a UE may include a transceiver configured to communicate wirelessly and a processor coupled to the transceiver. The processor may determine that at least one of the UE or a network supports NAS protocol header optimization and that there is a need to send a control plane data in a message from the UE to the network. In response to the determining, the processor may further determine an access category or a RRC establishment cause, for transmitting the message to the network, with either or both of the following: (1) a new or existing access attempt or category; and (2) a new or existing RRC establishment cause.
[0011] In still another aspect, an apparatus implementable in a UE may include a transceiver configured to communicate wirelessly and a processor coupled to the transceiver. The processor may determine that at least one of the UE or a network supports NAS protocol header optimization and that there is a need to perform a data transport procedure to send user data from the UE to the network. In response to the determining, the processor may perform the following: (a) establishing a NAS signaling connection for the data transport procedure; and (b) transmitting a message to the network with one or more features.
[0012] 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 5th Generation (5G) New Radio (NR) / Beyond Fifth-Generation (B5G) / 6th Generation (6G) 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, 4th Generation (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
[0013] 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.
[0014] 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.
[0015] FIG. 2 is a block diagram of an example communication system under a proposed scheme in accordance with the present disclosure.
[0016] FIG. 3 is a flowchart of a second example process under a proposed scheme in accordance with the present disclosure.
[0017] 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
[0018] 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
[0019] Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and / or solutions pertaining to access identity and access category or RRC establishment cause for optimized control plane data transport 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.
[0020] 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.
[0021] Referring to FIG. 1, network environment 100 involves a UE 110 in wireless communication with a wireless network 120 (e.g., a mobile network including an NTN and a TN) via a terrestrial network node 125 (e.g., an evolved Node-B (eNB) , a Next Generation Node-B (gNB) , or a transmission / reception point (TRP) ) and / or a non-terrestrial network node 128 (e.g., a satellite) . For example, the terrestrial network node 125 and / or the non-terrestrial network node 128 may form a non-terrestrial network (NTN) serving cell for wireless communication with the UE 110. In some implementations, the UE 110 may be an IoT device such as an NB-IoT UE or an enhanced machine-type communication (eMTC) UE (e.g., a bandwidth reduced low complexity (BL) UE or a coverage enhancement (CE) UE) . In such communication environment, the UE 110, the network 120, the terrestrial network node 125, and the non-terrestrial network node 128 may implement various schemes pertaining to access identity and access category or RRC establishment cause for optimized control plane data transport in accordance with the present disclosure, as described below.
[0022] 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.
[0023] Under a proposed scheme in accordance with the present disclosure, when a UE (e.g., UE 110) and / or a network (e.g., wireless network 120) support (s) NAS protocol header optimization and need (s) to send an optimized control plane data in a message from the UE to the network (e.g., a CP SMALL DATA TRANSPORT message, and the like) , the UE may perform one or mor operations. For instance, the UE may utilize a newly introduced access attempt / category or use an existing access attempt / category (e.g., mobile-originated (MO) data (value = 7) ) . Alternatively, or additionally, the UE may set a RRC establishment cause to be MO data or utilize a newly introduced RRC establishment cause (e.g., MO small data) .
[0024] Under a proposed scheme in accordance with the present disclosure, when a UE (e.g., UE 110) and / or a network (e.g., wireless network 120) support (s) NAS protocol header optimization and need (s) to perform a data transport procedure to send user data from the UE to the network such as, for example, an EMM data transport procedure (e.g., by sending an EMM TRANSPORT message) or a 5GMM data transport procedure (e.g., by sending a 5th Generation Mobility Management (5GMM) TRANSPORT message) , then for establishing a NAS signaling connection for that the UE may perform one or more operations. For instance, in 5G or 6G, the UE may utilize a newly introduced access attempt / category or use an existing access attempt / category for MO data (e.g., Access category MO data (value = 7) ) . Alternatively, or additionally, the UE may, for responding to paging, utilize Access category 0 (= MT_acc) , or, for providing low priority data or data that is subject to delay tolerant, utilize Access category 1 (= delay tolerant) . Moreover, in 4th Generation (4G) , an RRC establishment cause may be MO data or a newly introduced RRC establishment cause (e.g., MO small data) . Furthermore, in more detail (as an example in 4G / EPS) , when the UE requests the establishment of a NAS signaling connection, or lower layers to resume a NAS signaling connection, for EMM data transport procedure (e.g., for sending an EMM TRANSPORT message) , then the RRC establishment cause used by the UE may be selected according to the NAS procedure as defined in the table below.
[0025] Notably, for the EMM data transport procedure (e.g., EMM TRANSPORT message) in wideband S1 (WB-S1) mode initiated by UEs of access class 12, 13 or 14 in their home country, the RRC establishment cause may be set to "High priority access AC 11 –15" . For this purpose, the home country is defined as the country to which the MCC part of the IMSI is associated. For the EMM data transport procedure (e.g., EMM TRANSPORT message) in WB-S1 mode initiated by UE of access class 11 or 15 in their HPLMN (if the EHPLMN list is not present or is empty) or EHPLMN (if the EHPLMN list is present) , the RRC establishment cause may be set to "High priority access AC 11 –15" . For the EMM data transport procedure (e.g., EMM TRANSPORT message) in WB-S1 mode initiated by UEs following a release with redirection with an mpsPriorityIndication indicating that the UE has an active MPS session, the lower layers may set the RRC establishment cause to "High priority access AC 11 –15" , including for UEs with an access class other than 11, 12, 13, 14 or 15. Illustrative Implementations
[0026] 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 access identity and access category or RRC establishment cause for optimized control plane data transport 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.
[0027] 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.
[0028] 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.
[0029] 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 access identity and access category or RRC establishment cause for optimized control plane data transport in mobile communications in accordance with various implementations of the present disclosure.
[0030] 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.
[0031] 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.
[0032] 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
[0033] 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 access identity and access category or RRC establishment cause for optimized control plane data transport 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. 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 (e.g., non-terrestrial network node 128 or terrestrial network node 125) of a network (e.g., wireless network 120) . Process 300 may begin at block 310.
[0034] At 310, process 300 may involve processor 212 of apparatus 210, as UE 110, determining that at least one of the UE or a network (e.g., wireless network 120 via apparatus 220 as network node 125 or 128) supports NAS protocol header optimization and that there is a need to send a control plane data in a message from the UE to the network. Process 300 may proceed from 310 to 320.
[0035] At 320, process 300 may involve processor 212, in response to the determining, further determining an access category or a RRC establishment cause, for transmitting the message to the network, with either or both of the following: (a) a new or existing access attempt or category; and (b) a new or existing RRC establishment cause. Process 300 may proceed from 320 to 330.
[0036] At 330, process 300 may involve processor 212 transmitting, via transceiver 216, the message to the network with ither or both of the following: (a) the new or existing access attempt or category; and (b) the new or existing RRC establishment cause.
[0037] In some implementations, the existing access attempt or category may correspond to MO data.
[0038] In some implementations, the existing RRC establishment cause may correspond to MO data.
[0039] In some implementations, the new RRC establishment cause may correspond to MO small data.
[0040] In some implementations, in transmitting the message, process 300 may involve processor 212 transmitting a control plane (CP) small data transport message.
[0041] 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 access identity and access category or RRC establishment cause for optimized control plane data transport 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. 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 (e.g., non-terrestrial network node 128 or terrestrial network node 125) of a network (e.g., wireless network 120) . Process 400 may begin at block 410.
[0042] At 410, process 400 may involve processor 212 of apparatus 210, as UE 110, determining that at least one of the UE or a network (e.g., wireless network 120 via apparatus 220 as network node 125 or 128) supports NAS protocol header optimization and that there is a need to perform a data transport procedure to send user data from the UE to the network. Process 400 may proceed from 410 to 420.
[0043] At 420, process 400 may involve processor 212, in response to the determining, performing, via transceiver 216, the following; (a) establishing a NAS signaling connection for the data transport procedure; and (b) transmitting a message to the network with one or more features.
[0044] In some implementations, the data transport procedure may include an EMM data transport procedure, and the message may include an EMM transport message.
[0045] In some implementations, the data transport procedure may include a 5GMM data transport procedure, and the message may include a 5GMM transport message.
[0046] In some implementations, in establishing the NAS signaling connection for the data transport procedure, process 400 may involve processor 212 establishing the NAS signaling connection with a new or existing access attempt or category for MO data, for responding to paging with a access category 0, or for providing low-priority data or data that is subject to delay tolerant access category 1. In some implementations, the network may include a 5G or 6G network.
[0047] In some implementations, in establishing the NAS signaling connection for the data transport procedure, process 400 may involve processor 212 transmitting the message with a new or existing RRC establishment cause. In some implementations, the network may include a 4G network.
[0048] In some implementations, the existing RRC establishment cause may correspond to MO data.
[0049] In some implementations, the new RRC establishment cause may correspond to MO small data. Additional Notes
[0050] 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.
[0051] 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.
[0052] 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. ”
[0053] 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:determining, by a processor of a user equipment (UE) , that at least one of the UE or a network supports non-access stratum (NAS) protocol header optimization and that there is a need to send a control plane data in a message from the UE to the network; andresponsive to the determining, further determining, by the processor, an access category or a radio resource control (RRC) establishment cause, for transmitting the message to the network, with either or both of:a new or existing access attempt or category; anda new or existing radio resource control (RRC) establishment cause.2.The method of Claim 1, wherein the existing access attempt or category corresponds to mobile-originated (MO) data.3.The method of Claim 1, wherein the existing RRC establishment cause corresponds to mobile-originated (MO) data.4.The method of Claim 1, wherein the new RRC establishment cause corresponds to mobile-originated (MO) small data.5.The method of Claim 1, wherein the transmitting of the message comprises transmitting a control plane (CP) small data transport message.6.A method, comprising:determining, by a processor of a user equipment (UE) , that at least one of the UE or a network supports non-access stratum (NAS) protocol header optimization and that there is a need to perform a data transport procedure to send user data from the UE to the network; andperforming, by the processor, responsive to the determining:establishing a NAS signaling connection for the data transport procedure; andtransmitting a message to the network with one or more features.7.The method of Claim 6, wherein the data transport procedure comprises an Evolved Packet System (EPS) Mobility Management (EMM) data transport procedure, and wherein the message comprises an EMM transport message.8.The method of Claim 6, wherein the data transport procedure comprises a 5th Generation Mobility Management (5GMM) data transport procedure, and wherein the message comprises a 5GMM transport message.9.The method of Claim 6, wherein the establishing of the NAS signaling connection for the data transport procedure comprises establishing the NAS signaling connection with a new or existing access attempt or category for mobile-originated (MO) data, for responding to paging with a access category 0, or for providing low-priority data or data that is subject to delay tolerant access category 1.10.The method of Claim 9, wherein the network comprises a 5th Generation (5G) or 6th Generation (6G) network.11.The method of Claim 6, wherein the establishing of the NAS signaling connection for the data transport procedure comprises transmitting the message with a new or existing radio resource control (RRC) establishment cause.12.The method of Claim 11, wherein the network comprises a 4th Generation (4G) network.13.The method of Claim 11, wherein the existing RRC establishment cause corresponds to mobile-originated (MO) data.14.The method of Claim 11, wherein the new RRC establishment cause corresponds to mobile-originated (MO) small data.15.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:obtaining a service from a network; andutilizing the service which steers the UE in performing network and access technology selection in a UE location.determining that at least one of the UE or a network supports non-access stratum (NAS) protocol header optimization and that there is a need to perform a data transport procedure to send user data from the UE to the network; andperforming, via the transceiver, responsive to the determining:establishing a NAS signaling connection for the data transport procedure; andtransmitting a message to the network with one or more features.16.The apparatus of Claim 15, wherein the data transport procedure comprises an Evolved Packet System (EPS) Mobility Management (EMM) data transport procedure, and wherein the message comprises an EMM transport message.17.The apparatus of Claim 15, wherein the data transport procedure comprises a 5th Generation Mobility Management (5GMM) data transport procedure, and wherein the message comprises a 5GMM transport message.18.The apparatus of Claim 15, wherein the establishing of the NAS signaling connection for the data transport procedure comprises establishing of the NAS signaling connection for transmitting the message with a new or existing access attempt or category for mobile-originated (MO) data, for responding to paging with a access category 0, or for providing low-priority data or data that is subject to delay tolerant access category 1.19.The apparatus of Claim 15, wherein the establishing of the NAS signaling connection for the data transport procedure comprises establishing of the NAS signaling connection for transmitting the message with a new or existing radio resource control (RRC) establishment cause.20.The apparatus of Claim 19, wherein the existing RRC establishment cause corresponds to mobile-originated (MO) data, and wherein the new RRC establishment cause corresponds to MO small data.