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WO2022021088A1 - Restriction relative à des informations d'aide à la sélection d'une tranche de réseau unique dans une politique de sélection de trajet d'équipement utilisateur - Google Patents

Restriction relative à des informations d'aide à la sélection d'une tranche de réseau unique dans une politique de sélection de trajet d'équipement utilisateur Download PDF

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Publication number
WO2022021088A1
WO2022021088A1 PCT/CN2020/105278 CN2020105278W WO2022021088A1 WO 2022021088 A1 WO2022021088 A1 WO 2022021088A1 CN 2020105278 W CN2020105278 W CN 2020105278W WO 2022021088 A1 WO2022021088 A1 WO 2022021088A1
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Prior art keywords
nssai
ursp
update
mapped
nssais
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English (en)
Inventor
Chaofeng HUI
Jing Zhou
Haibo Liu
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Qualcomm Inc
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Qualcomm Inc
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Priority to PCT/CN2020/105278 priority Critical patent/WO2022021088A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for restriction of single network slice selection assistance information (S-NSSAI) in a user equipment (UE) route selection policy (URSP) update.
  • S-NSSAI single network slice selection assistance information
  • UE user equipment
  • URSP route selection policy
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, 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. ) .
  • available system resources e.g., bandwidth, transmit power, etc.
  • multiple-access systems examples include 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, LTE Advanced (LTE-A) systems, code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems, to name a few.
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • LTE-A LTE Advanced
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • TD-SCDMA time division synchronous code division multiple access
  • New radio e.g., 5G NR
  • 5G NR is an example of an emerging telecommunication standard.
  • NR is a set of enhancements to the LTE mobile standard promulgated by 3GPP.
  • NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using OFDMA with a cyclic prefix (CP) on the downlink (DL) and on the uplink (UL) .
  • CP cyclic prefix
  • NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • MIMO multiple-input multiple-output
  • the method generally includes determining to update a URSP.
  • the method generally includes transmitting at least one S-NSSAI information element (IE) that excludes mapped S-NSSAIs.
  • IE S-NSSAI information element
  • the method generally includes receiving a URSP update including one or more S-NSSAI IEs.
  • the method generally includes determining whether to accept or reject the URSP update based on whether the URSP update includes at least one S-NSSAI IE with a mapped S-NSSAI.
  • aspects of the present disclosure provide means for, apparatus, processors, and computer-readable mediums for performing the methods described herein.
  • the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims.
  • the following description and the appended drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed.
  • FIG. 1 is a block diagram conceptually illustrating an example telecommunications system, in accordance with certain aspects of the present disclosure.
  • FIG. 2 is a block diagram conceptually illustrating a design of an example a base station (BS) and user equipment (UE) , in accordance with certain aspects of the present disclosure.
  • BS base station
  • UE user equipment
  • FIG. 3 is a block diagram illustrating an example architecture of a core network (CN) and radio access network (RAN) , in accordance with certain aspects of the present disclosure.
  • CN core network
  • RAN radio access network
  • FIG. 4 is an example frame format for new radio (NR) , in accordance with certain aspects of the present disclosure.
  • FIG. 5 illustrates example services capable of using resources provided by network slices, in accordance with certain aspects of the present disclosure.
  • FIG. 6 is an example format of a single network slice selection assistance information (S-NSSAI) information element (IE) , in accordance with certain aspects of the present disclosure.
  • S-NSSAI single network slice selection assistance information
  • IE information element
  • FIG. 7 is a table showing information carried in the S-NSSAI IE, in accordance with certain aspects of the present disclosure.
  • FIG. 8 is a call flow diagram of example signaling for a UE route selection policy (URSP) update, in accordance with certain aspects of the present disclosure.
  • URSP UE route selection policy
  • FIG. 9 is an example URSP, in accordance with certain aspects of the present disclosure.
  • FIG. 10 is an example URSP with an unexpected value, in accordance with certain aspects of the present disclosure
  • FIG. 11 illustrates example operations that may be performed by a network entity, in accordance with certain aspects of the present disclosure.
  • FIG. 12 illustrates example operations that may be performed by a UE, in accordance with certain aspects of the present disclosure.
  • FIG. 13 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein in accordance with aspects of the present disclosure.
  • FIG. 14 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein in accordance with aspects of the present disclosure.
  • aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for restriction on single network slice selection assistance information (S-NSSAI) in a user equipment (UE) route selection policy (URSP) update, in accordance with certain aspects of the present disclosure.
  • S-NSSAI single network slice selection assistance information
  • UE user equipment
  • URSP route selection policy
  • the network and the UE operate in tandem according to policies and the rules in the corresponding policy, such as a URSP. These policies may be used in a variety of scenarios, including scenarios involving associating protocol data unit (PDU) applications to different network slices based on the URSP policy.
  • PDU protocol data unit
  • the network may carry a mapped S-NSSAI part in the URSP rules.
  • the S-NSSAI value in a URSP policy should only contain home public land mobile network (HPLMN) S-NSSAI values. What is needed is handling for S-NSSAI values received with mapped S-NSSAI parts in the URSP policy update.
  • HPLMN home public land mobile network
  • an S-NSSAI information element (IE) is sent for a URSP update
  • mapped S-NSSAI values are excluded.
  • a UE may not expect to receive a URSP update with an S-NSSAI IE associated with traffic descriptors, that includes mapped S-NSSAI values. If the UE does receive such as URSP update, the UE may treat it as an error case, for example by rejecting the USRP update.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular radio access technology (RAT) and may operate on one or more frequencies.
  • RAT may also be referred to as a radio technology, an air interface, etc.
  • a frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, a subband, etc.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR access may support various wireless communication services, such as enhanced mobile broadband (eMBB) targeting wide bandwidth, millimeter wave (mmW) targeting high carrier frequency, massive machine type communications MTC (mMTC) targeting non-backward compatible MTC techniques, and/or mission critical targeting ultra-reliable low-latency communications (URLLC) .
  • eMBB enhanced mobile broadband
  • mmW millimeter wave
  • mMTC massive machine type communications MTC
  • URLLC ultra-reliable low-latency communications
  • These services may include latency and reliability requirements.
  • These services may also have different transmission time intervals (TTI) to meet respective quality of service (QoS) requirements.
  • TTI transmission time intervals
  • QoS quality of service
  • these services may co-exist in the same subframe.
  • the electromagnetic spectrum is often subdivided, based on frequency/wavelength, into various classes, bands, channels, etc.
  • two initial operating bands have been identified as frequency range designations FR1 (410 MHz –7.125 GHz) and FR2 (24.25 GHz –52.6 GHz) .
  • the frequencies between FR1 and FR2 are often referred to as mid-band frequencies.
  • FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles.
  • FR2 which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • sub-6 GHz or the like if used herein may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies.
  • millimeter wave or the like if used herein may broadly represent frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.
  • NR supports beamforming and beam direction may be dynamically configured.
  • MIMO transmissions with precoding may also be supported.
  • MIMO configurations in the DL may support up to 8 transmit antennas with multi-layer DL transmissions up to 8 streams and up to 2 streams per UE.
  • Multi-layer transmissions with up to 2 streams per UE may be supported.
  • Aggregation of multiple cells may be supported with up to 8 serving cells.
  • FIG. 1 illustrates an example wireless communication network 100 in which aspects of the present disclosure may be performed.
  • the wireless communication network 100 may be an NR system (e.g., a 5G NR network) .
  • the wireless communication network 100 may be in communication with a core network 132.
  • the wireless communication network 100 may be in communication with a core network 132.
  • the core network 132 may in communication with one or more base station (BSs) 110110a-z (each also individually referred to herein as BS 110 or collectively as BSs 110) and/or user equipment (UE) 120a-y (each also individually referred to herein as UE 120 or collectively as UEs 120) in the wireless communication network 100 via one or more interfaces as discussed more detail below with respect to FIG. 3.
  • BSs base station
  • UE 120a-y each also individually referred to herein as UE 120 or collectively as UEs 120
  • a BS 110 may provide communication coverage for a particular geographic area, sometimes referred to as a “cell” , which may be stationary or may move according to the location of a mobile BS 110.
  • the BSs 110 may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in wireless communication network 100 through various types of backhaul interfaces (e.g., a direct physical connection, a wireless connection, a virtual network, or the like) using any suitable transport network.
  • the BSs 110a, 110b and 110c may be macro BSs for the macro cells 102a, 102b and 102c, respectively.
  • the BS 110x may be a pico BS for a pico cell 102x.
  • the BSs 110y and 110z may be femto BSs for the femto cells 102y and 102z, respectively.
  • a BS may support one or multiple cells.
  • the BSs 110 communicate with UEs 120 in the wireless communication network 100.
  • the UEs 120 (e.g., 120x, 120y, etc. ) may be dispersed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile.
  • Wireless communication network 100 may also include relay stations (e.g., relay station 110r) , also referred to as relays or the like, that receive a transmission of data and/or other information from an upstream station (e.g., a BS 110a or a UE 120r) and sends a transmission of the data and/or other information to a downstream station (e.g., a UE 120 or a BS 110) , or that relays transmissions between UEs 120, to facilitate communication between devices.
  • relay stations e.g., relay station 110r
  • a downstream station e.g., a UE 120 or a BS 110
  • a network controller 130 may be in communication with a set of BSs 110 and provide coordination and control for these BSs 110 (e.g., via a backhaul) .
  • the network controller 130 may be in communication with a core network 132 (e.g., a 5G Core Network (5GC) ) , which provides various network functions such as Access and Mobility Management, Session Management, User Plane Function, Policy Control Function, Authentication Server Function, Unified Data Management, Application Function, Network Exposure Function, Network Repository Function, Network Slice Selection Function, etc.
  • 5GC 5G Core Network
  • the BSs 110 and UE 120a may be configured with a restriction on S-NSSAI in URSP updates in wireless communication network 100.
  • the BS 110a includes a URSP update manager 112.
  • the URSP update manager 112 may be configured to determine to update a URSP and transmit at least one S-NSSAI IE that excludes mapped S-NSSAIs, in accordance with aspects of the present disclosure.
  • the URSP update manager 112 may determine the at least one S-NSSAI IE is associated with one or more route selection descriptors of the URSP, and may exclude the mapped S-NSSAIs from the S-NSSAI IE based on the determination that the at least one S-NSSAI IE is associated with route selection descriptors.
  • the UE 120a includes a URSP update manager 122.
  • the URSP update manager 122 may be configured to receive a URSP update including one or more S-NSSAI IEs, and determine whether to accept or reject the URSP update based on whether the URSP update includes at least one S-NSSAI IE with a mapped S-NSSAI, in accordance with aspects of the present disclosure.
  • the URSP update manager 122 may route traffic for one or more applications to one or more protocol data unit (PDU) sessions based on the URSP update.
  • PDU protocol data unit
  • FIG. 2 illustrates example components of BS 110a and UE 120a (e.g., in the wireless communication network 100 of FIG. 1) , which may be used to implement aspects of the present disclosure.
  • a transmit processor 220 may receive data from a data source 212 and control information from a controller/processor 240.
  • the control information may be for the physical broadcast channel (PBCH) , physical control format indicator channel (PCFICH) , physical hybrid ARQ indicator channel (PHICH) , physical downlink control channel (PDCCH) , group common PDCCH (GC PDCCH) , etc.
  • the data may be for the physical downlink shared channel (PDSCH) , etc.
  • a medium access control (MAC) -control element (MAC-CE) is a MAC layer communication structure that may be used for control command exchange between wireless nodes.
  • the MAC-CE may be carried in a shared channel such as a physical downlink shared channel (PDSCH) , a physical uplink shared channel (PUSCH) , or a physical sidelink shared channel (PSSCH) .
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • PSSCH physical sidelink shared channel
  • the processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively.
  • the transmit processor 220 may also generate reference symbols, such as for the primary synchronization signal (PSS) , secondary synchronization signal (SSS) , PBCH demodulation reference signal (DMRS) , and channel state information reference signal (CSI-RS) .
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • DMRS PBCH demodulation reference signal
  • CSI-RS channel state information reference signal
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and/or the reference symbols, if applicable, and may provide output symbol streams to the modulators (MODs) 232a-232t.
  • MIMO modulation reference signal
  • Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc. ) to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. Downlink signals from modulators 232a-232t may be transmitted via the antennas 234a-234t, respectively.
  • a respective output symbol stream e.g., for OFDM, etc.
  • Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal.
  • Downlink signals from modulators 232a-232t may be transmitted via the antennas 234a-234t, respectively.
  • the antennas 252a-252r may receive the downlink signals from the BS 110a and may provide received signals to the demodulators (DEMODs) in transceivers 254a-254r, respectively.
  • Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples.
  • Each demodulator may further process the input samples (e.g., for OFDM, etc. ) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from all the demodulators 254a-254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120a to a data sink 260, and provide decoded control information to a controller/processor 280.
  • a transmit processor 264 may receive and process data (e.g., for the physical uplink shared channel (PUSCH) ) from a data source 262 and control information (e.g., for the physical uplink control channel (PUCCH) from the controller/processor 280.
  • the transmit processor 264 may also generate reference symbols for a reference signal (e.g., for the sounding reference signal (SRS) ) .
  • the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the modulators in transceivers 254a-254r (e.g., for SC-FDM, etc. ) , and transmitted to the BS 110a.
  • the uplink signals from the UE 120a may be received by the antennas 234, processed by the modulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120a.
  • the receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to the controller/processor 240.
  • the memories 242 and 282 may store data and program codes for BS 110a and UE 120a, respectively.
  • a scheduler 244 may schedule UEs for data transmission on the downlink and/or uplink.
  • Antennas 252, processors 266, 258, 264, and/or controller/processor 280 of the UE 120a and/or antennas 234, processors 220, 230, 238, and/or controller/processor 240 of the BS 110a may be used to perform the various techniques and methods described herein.
  • the controller/processor 240 of the BS 110a has a URSP update manager 241 that may be configured with a restriction on S-NSSAI in URSP updates, according to aspects described herein.
  • the controller/processor 280 of the UE 120a has an URSP update manager 281 that may be configured with a restriction on S-NSSAI in URSP updates, according to aspects described herein.
  • other components of the UE 120a and BS 110a may be used to perform the operations described herein.
  • FIG. 3 is a block diagram illustrating an example architecture of a core network (CN) 300 (e.g., such as the CN 132 in FIG. 1) in communication with a RAN 324, in accordance with certain aspects of the present disclosure.
  • the example architecture includes the CN 300, RAN 324, UE 322, and data network (DN) 328 (e.g. operator services, Internet access or third party services) .
  • DN data network
  • the CN 300 may host core network functions. CN 300 may be centrally deployed. CN 300 functionality may be offloaded (e.g., to advanced wireless services (AWS) ) , in an effort to handle peak capacity.
  • the example CN 300 may be implemented by one or more network entities that perform network functions (NF) including Network Slice Selection Function (NSSF) 304, Network Exposure Function (NEF) 306, NF Repository Function (NRF) 308, Policy Control Function (PCF) 310, Unified Data Management (UDM) 312, Application Function (AF) 314, Authentication Server Function (AUSF) 316, Access and Mobility Management Function (AMF) 318, Session Management Function (SMF) 320; User Plane Function (UPF) 326, and various other functions (not shown) such as Unstructured Data Storage Function (UDSF) ; Unified Data Repository (UDR) ; 5G-Equipment Identity Register (5G-EIR) ; and/or Security Edge Protection Proxy (SEPP) .
  • NF Network Slice Selection Function
  • the AMF 318 may include the following functionality (some or all of the AMF functionalities may be supported in one or more instances of an AMF) : termination of RAN control plane (CP) interface (N2) ; termination of non-access stratum (NAS) (e.g., N1) , NAS ciphering and integrity protection; registration management; connection management; reachability management; mobility management; lawful intercept (for AMF events and interface to L1 system) ; transport for session management (SM) messages between UE 322 and SMF 320; transparent proxy for routing SM messages; access authentication; access authorization; transport for short message service (SMS) messages between UE 322 and a SMS function (SMSF) ; Security Anchor Functionality (SEAF) ; Security Context Management (SCM) , which receives a key from the SEAF that it uses to derive access-network specific keys; Location Services management for regulatory services; transport for Location Services messages between UE 322 and a location management function (LMF) as well as between RAN 324 and LMF; evolved packet service
  • SMF 320 may support: session management (e.g., session establishment, modification, and release) , UE IP address allocation and management, dynamic host configuration protocol (DHCP) functions, termination of NAS signaling related to session management, downlink data notification, and traffic steering configuration for UPF for proper traffic routing.
  • UPF 326 may support: packet routing and forwarding, packet inspection, quality-of-service (QoS) handling, external protocol data unit (PDU) session point of interconnect to DN 328, and anchor point for intra-RAT and inter-RAT mobility.
  • PCF 310 may support: unified policy framework, providing policy rules to control protocol functions, and/or access subscription information for policy decisions in UDR.
  • AUSF 316 may acts as an authentication server.
  • UDM 312 may support: generation of Authentication and Key Agreement (AKA) credentials, user identification handling, access authorization, and subscription management.
  • NRF 308 may support: service discovery function, and maintain NF profile and available NF instances.
  • NSSF may support: selecting of the Network Slice instances to serve the UE 322, determining the allowed network slice selection assistance information (NSSAI) , and/or determining the AMF set to be used to serve the UE 322.
  • NSSAI network slice selection assistance information
  • NEF 306 may support: exposure of capabilities and events, secure provision of information from external application to 3GPP network, translation of internal/external information.
  • AF 314 may support: application influence on traffic routing, accessing NEF 306, and/or interaction with policy framework for policy control.
  • the CN 300 may be in communication with the AS 302, UE 322, RAN 324, and DN 328.
  • the CN 300 communicates with the external AS 302 via the NEF 306 and/or AF 314.
  • the CN 300 communicates with the RAN 324 (e.g., such as the BS 110a in the wireless communication network 100 illustrated in FIG. 1) and/or the UE 322 (e.g., such as the UE 120a in the wireless communication network 100 illustrated in FIG. 1) via the AMF 318.
  • the NSSF 304 supports the following functionality: selecting of the network slice instances to serve the UE 322; determining the allowed network slice selection assistance information (NSSAI) ; and/or determining the AMF set to be used to serve the UE 322.
  • NSSAI network slice selection assistance information
  • NR may utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) on the uplink and downlink.
  • OFDM orthogonal frequency division multiplexing
  • CP cyclic prefix
  • NR may support half-duplex operation using time division duplexing (TDD) .
  • OFDM and single-carrier frequency division multiplexing (SC-FDM) partition the system bandwidth into multiple orthogonal subcarriers, which are also commonly referred to as tones, bins, etc. Each subcarrier may be modulated with data. Modulation symbols may be sent in the frequency domain with OFDM and in the time domain with SC-FDM.
  • the spacing between adjacent subcarriers may be fixed, and the total number of subcarriers may be dependent on the system bandwidth.
  • the minimum resource allocation may be 12 consecutive subcarriers.
  • the system bandwidth may also be partitioned into subbands. For example, a subband may cover multiple RBs.
  • NR may support a base subcarrier spacing (SCS) of 15 KHz and other SCS may be defined with respect to the base SCS (e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc. ) .
  • SCS base subcarrier spacing
  • FIG. 4 is a diagram showing an example of a frame format 400 for NR.
  • the transmission timeline for each of the downlink and uplink may be partitioned into units of radio frames.
  • Each radio frame may have a predetermined duration (e.g., 10 ms) and may be partitioned into 10 subframes, each of 1 ms, with indices of 0 through 9.
  • Each subframe may include a variable number of slots (e.g., 1, 2, 4, 8, 16, ...slots) depending on the SCS.
  • Each slot may include a variable number of symbol periods (e.g., 7 or 14 symbols) depending on the SCS.
  • the symbol periods in each slot may be assigned indices.
  • a mini-slot which may be referred to as a sub-slot structure, refers to a transmit time interval having a duration less than a slot (e.g., 2, 3, or 4 symbols) .
  • Each symbol in a slot may indicate a link direction (e.g., DL, UL, or flexible) for data transmission and the link direction for each subframe may be dynamically switched.
  • the link directions may be based on the slot format.
  • Each slot may include DL/UL data as well as DL/UL control information.
  • a network slice may be defined as a logical network that provides specific network capabilities and network characteristics.
  • a network slice instance may be defined as a set of network function instances and the required resources (e.g., compute, storage, and networking resources) which form a deployed network slice.
  • Network slices instances may be used for specific use cases. Each use case receives a unique set of resources and network topology that suit the needs of the service and any application using the services.
  • Network slices may be used for various services, such as for various 5G services including Internet of Things (IoT) , Enhanced Mobile Broadband (eMBB) , and Ultra Reliable Low Latency Communication (URLLC) .
  • IoT Internet of Things
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra Reliable Low Latency Communication
  • FIG. 5 illustrates some examples services, use cases, and associated service requirements that may provided by network slices.
  • services may include IoT, smart phones, autonomous cars, and gaming and/or high definition videos.
  • IoT service use cases may include such things as water and/or gas sensors, which require low bandwidth and have a high latency.
  • Smart phones use cases may require high bandwidth and medium latency.
  • Autonomous car uses cases may require low bandwidth and very low latency.
  • gaming and/or high definition video use cases may require high bandwidth and low latency.
  • a network slice is identified by single network slice selection assistance information (S-NSSAI) .
  • NSSAI is a list of one or more S-NSSAIs.
  • An S-NSSAI includes a slice/service type (SST) , which refers to the expected network slice behavior (e.g., features and services) , and a slice differentiator (SD) , which is optional information that complements the SST (s) to differentiate amongst multiple network slices of the same SST.
  • SST slice/service type
  • SD slice differentiator
  • An S-NSSAI can have standard values (e.g., including an SST with a standardized SST value and no SD) or non-standard values (e.g., including an SST and an SD or including an SST without a standardized SST value and no SD) .
  • An S-NSSAI with a non-standard value identifies a single network slice within a public land mobile network (PLMN) with which it is associated.
  • PLMN public land mobile network
  • An S-NSSAI with a non-standard value may not be used by the UE in access stratum procedures in any PLMN other than the one to which the S-NSSAI is associated.
  • Network slices may differ with respects to supported features and network functions optimizations. For example, different S-NSSAIs may have different SSTs. An operator can deploy multiple network slice instances delivering the same features, but for different groups of UEs (e.g., dedicated to a customer different S-NSSAIs with the same SST but different SDs) . The network may serve a single UE with one or more network slice instances simultaneously (e.g., via the 5G-AN) . In some examples, a UE may be associated with up to eight different S-NSSAIs in total.
  • Access and Mobility Management Function (AMF) instances can be common to network slice instances serving a UE. Selection of the set of network slice instances for a UE is triggered by the first contacted AMF in a registration procedure normally by interacting with the NSSF.
  • a protocol data unit (PDU) session may belong to one specific network slice instance per PLMN. Different network slice instances may not share a PDU session, though different slices may have slice-specific PDU sessions using the same data network name (DNN) .
  • DNN data network name
  • the UE may request establishment of a PDU session in a network slice towards a DN associated with an S-NSSAI and a DNN if there is no established PDU session adequate for the PDU transmission.
  • the S-NSSAI included is part of allowed NSSAI of the serving PLMN, which is an S-NSSAI value valid in the serving PLMN, and in roaming scenarios the mapped S-NSSAI is also included for the PDU session if available.
  • S-NSSAI values are provided in an NSSAI information element (IE) .
  • the NSSAI IE identifies a collection of S-NSSAIs.
  • the example NSSAI IE may have a length of 4-146 octets.
  • the NSSAI IE may indicate up to eight S-NSSAI values for requested NSSAI (sent by a UE) or an allowed NSSAI (sent by the network) .
  • the NSSAI IE may indicate up to sixteen S-NSSAI values in a configured NSSAI (sent by the UE and/or the network) .
  • the S-NSSAI IE may have a length of 3-10 octets.
  • the S-NSSAI value is coded as the length and value part of the example S-NSSAI IE starting with the second octet.
  • the length of S-NSSAI field may indicate the length of the included S-NSSAI contents.
  • the SST field may indicate SST value.
  • the SD field may indicate the SD value.
  • the mapped home public land mobile network (HPLMN) SST field may indicate the SST value of an S-NSSAI in the S-NSSAI (s) of the HPLMN to which the SST value is mapped.
  • HPLMN home public land mobile network
  • the mapped HPLMN SD field may indicate the SD value of an S-NSSAI in the S-NSSAI (s) of the HPLMN to which the SST value is mapped. Further information for each octet of the S-NSSAI IE is provided in FIG. 7 and may be described in 3GPP Technical Standards TS 24.501 for S-NSSAI.
  • a user equipment can be configured with a policy, for example via a policy control function (PCF) .
  • PCF policy control function
  • TS 23.502 and TS 23.503 describe an example Access Network Discovery &Selection Policy (ANDSP) and UE Route Selection Policy (URSP) .
  • ANDSP Access Network Discovery &Selection Policy
  • URSP UE Route Selection Policy
  • 3GPP TS 23.503 a UE may associate applications protocol data unit (PDU) sessions based on a URSP policy, so the UE can route applications to different slicing resource pools based on the URSP policy, which may be provided by network vendors.
  • PDU applications protocol data unit
  • a PDU Session Establishment procedure allows data transmission to a data network (DN) in a network slice.
  • a PDU session is associated with a single Network Slice Selection Assistance Information (S-NSSAI) and a data network name (DNN) .
  • S-NSSAI Network Slice Selection Assistance Information
  • DNN data network name
  • NSP Network Slice Selection Policy
  • An Access and Mobility Management Function may initiate a URSP update operation to modify the URSP if a policy control request trigger occurs.
  • FIG. 8 is a call flow of example signaling for a URSP policy update procedure, in accordance with certain aspects of the present disclosure.
  • the UE 802 receives signaling 812 to register with a 5G carrier.
  • the UE 802 exchanges signaling with the access network (AN) 804: SERVICE_REQUEST 814, SERVICE_ACCEPT 816, PDU session establishment req 818, PDU session establishment accept 820.
  • the PCF 808 decides to update the UE policy 822, and sends signaling to the AMF 806: Namf_Communication_N1N2MessageTransfer 824.
  • NAS non-access stratum
  • the UE 802 re-evaluates the URSP 830, and sends a PDU session release request 832 based on the re-evaluation of the URSP.
  • the UE 802 re-evaluates the URSP to bind an application to a second PDU session response to the URSP update.
  • FIG. 9 illustrates example URSP.
  • the URSP includes traffic descriptors and route (selection) descriptors (RSD) .
  • the traffic descriptor indicates that the data network name (DNN) is the Internet.
  • a URSP may include any number of route descriptors.
  • the example URSP policy includes four RSDs, and each route selection descriptor indicates a service using a network slice.
  • RSD1 involves a mapped S-NSSAI indicating an Enhanced Mobile Broadband (eMBB) slice
  • RSD2 involves an S-NSSAI indicating an Ultra Reliable Low Latency Communication (URLLC) slice
  • RSD3 involves an S-NSSAI indicating IOT slice
  • RSD4 involves an S-NSSAI indicating any other network slices.
  • FIG. 10 illustrates the example URSP with an unexpected mapped S-NSSAI configured.
  • the mapped S-NSSAI may indicate eMMB1 or eMMB2, which are used with roaming services, in the route selection descriptors.
  • the network when the network triggers the UE policy update through the UE configuration update procedure, the network carries a mapped S-NSSAI part in the URSP rules.
  • the S-NSSAI used in the URSP rule is formatted according to the format illustrated in FIG. 6 and as described in TS. 24.501 Table 9.11.2.8.1, which may contain a mapped S-NSSAI part.
  • the S-NSSAI value in a URSP policy should only contain HPLMN S-NSSAI values.
  • aspects of the present disclosure provide techniques for a restriction single network slice selection assistance information (S-NSSAI) in a user equipment (UE) route selection policy (URSP) update.
  • the network determines to update a URSP policy, and transmits at least one S-NSSAI information element (IE) that excludes mapped S-NSSAIs.
  • the network may determine that the at least one S-NSSAI IE is associated with one or more route selection descriptors of the URSP, and exclude the mapped S-NSSAI from the S-NSSAI IE based on the determination that the at least one S-NSSAI IE is associated with the one or more route selection descriptors.
  • the UE may not expect to receive a URSP that includes mapped S-NSSAI. If the UE does receive such a URSP, the UE may treat the URSP as an error case. For example, the UE may determine to reject the URSP update when the URSP includes at least one S-NSSAI IE with a mapped S-NSSAI.
  • FIG. 11 is a flow diagram illustrating example operations 1100 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 1100 may be performed, for example, by a network entity, such as a BS (e.g., the BS 110a in the wireless communication network 100) .
  • the operations 1100 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 240 of FIG. 2) .
  • the transmission and reception of signals by the BS in operations 1100 may be enabled, for example, by one or more antennas (e.g., antennas 234 of FIG. 2) .
  • the transmission and/or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., controller/processor 240) obtaining and/or outputting signals.
  • operations 1100 may begin at block 1102, where the network entity determines to update a URSP.
  • the URSP may associate one or more application to one or more PDU sessions.
  • the one or more applications may be associated with one or more network slices.
  • the one or more applications may be associated with one or more S-NSSAIs.
  • the network entity transmits at least one S-NSSAI IE that excludes mapped S-NSSAIs.
  • the at least one S-NSSAI IE may be a ten octet IE, and the excluded mapped S-NSSAIs from the S-NSSAI IE may be a seventh octet through a tenth octet of the ten octet IE.
  • the excluded mapped S-NSSAIs may be mapped home public land mobile network (HPLMN) slice differentiator (SD) S-NSSAIs and mapped HPLMN slice service type (SST) S-NSSAIs.
  • the S-NSSAI IE may be sent in an instruction associated with a UE policy section identifier (UPSI) in a URSP update procedure.
  • UPSI UE policy section identifier
  • the network entity determines the at least one S-NSSAI IE is associated one or more route selection descriptors of the URSP.
  • the network entity excludes the mapped S-NSSAIs from the S-NSSAI IE based on the determination that the at least one S-NSSAI IE is associated with route selection descriptors.
  • FIG. 12 is a flow diagram illustrating example operations 1200 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 1200 may be performed, for example, by a UE (e.g., the UE 120a in the wireless communication network 100) .
  • the operations 1200 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 280 of FIG. 2) .
  • the transmission and reception of signals by the UE in operations 1200 may be enabled, for example, by one or more antennas (e.g., antennas 252 of FIG. 2) .
  • the transmission and/or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller/processor 280) obtaining and/or outputting signals.
  • operations 1200 may begin at block 1202, where the UE receives a URSP update including one or more S-NSSAI IEs.
  • the S-NSSAI IE may be sent in an instruction associated with a UPSI in a URSP update procedure.
  • the UE determines whether to accept or reject the URSP update based on whether the URSP update includes at least one S-NSSAI IE with a mapped S-NSSAI.
  • at least one of the one or more S-NSSAI IEs may include mapped S-NSSAIs and the determining may include determining to reject the URSP update.
  • Rejecting the URSP may include sending a manage UE policy command reject message.
  • the manage UE policy command reject message may include a cause number indicating a protocol error.
  • Determining to reject the URSP update may include determining the at least one S-NSSAI IE is associated with one or more route selection descriptors of the URSP.
  • the one or more S-NSSAI IEs may exclude mapped S-NSSAIs and the determining may include determining to accept the URSP update.
  • the one or more S-NSSAI IEs may be ten octet IEs, and the one or more S-NSSAI IEs may exclude a seventh octet through a tenth octet associated with the excluded S-NSSAI IEs.
  • the UE routes traffic for one or more application to one or more PDU sessions based on the URSP update.
  • FIG. 13 illustrates a communications device 1300 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations illustrated in FIG. 11.
  • the communications device 1300 includes a processing system 1302 coupled to a transceiver 1308 (e.g., a transmitter and/or a receiver) .
  • the transceiver 1308 is configured to transmit and receive signals for the communications device 1300 via an antenna 1310, such as the various signals as described herein.
  • the processing system 1302 may be configured to perform processing functions for the communications device 1300, including processing signals received and/or to be transmitted by the communications device 1300.
  • the processing system 1302 includes a processor 1304 coupled to a computer-readable medium/memory 1312 via a bus 1306.
  • the computer-readable medium/memory 1312 is configured to store instructions (e.g., computer-executable code) that when executed by the processor 1304, cause the processor 1304 to perform the operations illustrated in FIG. 11, or other operations for performing the various techniques discussed herein for ensuring compatibility between network slice operating frequencies and UE radio capabilities.
  • computer-readable medium/memory 1312 stores code 1314 for determining to update a URSP; and code 1316 for transmitting at least one S-NSSAI IE that excludes mapped S-NSSAIs, in accordance with aspects of the disclosure.
  • computer-readable medium/memory 1312 may store code 1318 for determining the at least one S-NSSAI IE is associated with one or more route selection descriptors of the URSP; and code 1320 for excluding the mapped S-NSSAIs from the S-NSSAI IE based on the determination that the at least one S-NSSAI IE is associated with the one or more route selection descriptors.
  • the processor 1304 has circuitry configured to implement the code stored in the computer-readable medium/memory 1312.
  • the processor 1304 includes circuitry 1322 for determining to update a URSP; and circuitry 1324 for transmitting at least one S-NSSAI IE that excludes mapped S-NSSAIs, in accordance with aspects of the disclosure.
  • the processor 1304 includes circuitry 1326 for determining the at least one S-NSSAI IE is associated with one or more route selection descriptors of the URSP; and circuitry 1328 for excluding the mapped S-NSSAIs from the S-NSSAI IE based on the determination that the at least one S-NSSAI IE is associated with the one or more route selection descriptors.
  • FIG. 14 illustrates a communications device 1400 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations illustrated in FIG. 12.
  • the communications device 1400 includes a processing system 1402 coupled to a transceiver 1408 (e.g., a transmitter and/or a receiver) .
  • the transceiver 1408 is configured to transmit and receive signals for the communications device 1400 via an antenna 1410, such as the various signals as described herein.
  • the processing system 1402 may be configured to perform processing functions for the communications device 1400, including processing signals received and/or to be transmitted by the communications device 1400.
  • the processing system 1402 includes a processor 1404 coupled to a computer-readable medium/memory 1412 via a bus 1406.
  • the computer-readable medium/memory 1412 is configured to store instructions (e.g., computer-executable code) that when executed by the processor 1404, cause the processor 1404 to perform the operations illustrated in FIG. 12, or other operations for performing the various techniques discussed herein for ensuring compatibility between network slice operating frequencies and UE radio capabilities.
  • computer-readable medium/memory 1412 stores code 1414 for receiving a URSP update including one or more S-NSSAI IEs; and code 1416 for determining whether to accept or reject the URSP update based on whether the URSP includes at least one S-NSSAI IE with a mapped S-NSSAI, in accordance with aspects of the disclosure.
  • computer-readable medium/memory 1412 stores code 1418 for routing traffic for one or more application to one or more PDU sessions based on the URSP update.
  • the processor 1404 has circuitry configured to implement the code stored in the computer-readable medium/memory 1412.
  • the processor 1404 includes circuitry 1420 for receiving a URSP update including one or more S-NSSAI IEs; and circuitry 1422 for determining whether to accept or reject the URSP update based on whether the URSP includes at least one S-NSSAI IE with a mapped S-NSSAI, in accordance with aspects of the disclosure.
  • processor 1404 includes circuitry 1424 for routing traffic for one or more application to one or more PDU sessions based on the URSP update.
  • NR e.g., 5G NR
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • TD-SCDMA time division synchronous code division multiple access
  • a CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA) , cdma2000, etc.
  • UTRA Universal Terrestrial Radio Access
  • UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
  • cdma2000 covers IS-2000, IS-95 and IS-856 standards.
  • a TDMA network may implement a radio technology such as Global System for Mobile Communications (GSM) .
  • GSM Global System for Mobile Communications
  • An OFDMA network may implement a radio technology such as NR (e.g. 5G RA) , Evolved UTRA (E-UTRA) , Ultra Mobile Broadband (UMB) , IEEE 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDMA, etc.
  • NR e.g. 5G RA
  • E-UTRA Evolved UTRA
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDMA
  • UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS) .
  • LTE and LTE-A are releases of UMTS that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP) .
  • cdma2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) .
  • NR is an emerging wireless communications technology under development.
  • the term “cell” can refer to a coverage area of a Node B (NB) and/or a NB subsystem serving this coverage area, depending on the context in which the term is used.
  • NB Node B
  • BS next generation NodeB
  • AP access point
  • DU distributed unit
  • TRP transmission reception point
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or other types of cells.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having an association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG) , UEs for users in the 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.
  • a UE may also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, a Customer Premises Equipment (CPE) , a cellular phone, a smart phone, a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, an appliance, a medical device or medical equipment, a biometric sensor/device, a wearable device such as a smart watch, smart clothing, smart glasses, a smart wrist band, smart jewelry (e.g., a smart ring, a smart bracelet, etc.
  • CPE Customer Premises Equipment
  • PDA personal digital assistant
  • WLL wireless local loop
  • MTC machine-type communication
  • eMTC evolved MTC
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that may communicate with a BS, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • a network e.g., a wide area network such as Internet or a cellular network
  • Some UEs may be considered Internet-of-Things (IoT) devices, which may be narrowband IoT (NB-IoT) devices.
  • IoT Internet-of-Things
  • NB-IoT narrowband IoT
  • a scheduling entity (e.g., a BS) allocates resources for communication among some or all devices and equipment within its service area or cell.
  • the scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, subordinate entities utilize resources allocated by the scheduling entity.
  • Base stations are not the only entities that may function as a scheduling entity.
  • a UE may function as a scheduling entity and may schedule resources for one or more subordinate entities (e.g., one or more other UEs) , and the other UEs may utilize the resources scheduled by the UE for wireless communication.
  • a UE may function as a scheduling entity in a peer-to-peer (P2P) network, and/or in a mesh network.
  • P2P peer-to-peer
  • UEs may communicate directly with one another in addition to communicating with a scheduling entity.
  • two or more subordinate entities may communicate with each other using sidelink signals.
  • Real-world applications of such sidelink communications may include public safety, proximity services, UE-to-network relaying, vehicle-to-vehicle (V2V) communications, Internet of Everything (IoE) communications, IoT communications, mission-critical mesh, and/or various other suitable applications.
  • a sidelink signal may refer to a signal communicated from one subordinate entity (e.g., UE1) to another subordinate entity (e.g., UE2) without relaying that communication through the scheduling entity (e.g., UE or BS) , even though the scheduling entity may be utilized for scheduling and/or control purposes.
  • the sidelink signals may be communicated using a licensed spectrum (unlike wireless local area networks, which typically use an unlicensed spectrum) .
  • the methods disclosed herein comprise one or more steps or actions for achieving the methods.
  • the method steps and/or actions may be interchanged with one another without departing from the scope of the claims.
  • the order and/or use of specific steps and/or actions may be modified without departing from the scope of the claims.
  • a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
  • determining encompasses a wide variety of actions. For example, “determining” may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure) , ascertaining and the like. Also, “determining” may include receiving (e.g., receiving information) , accessing (e.g., accessing data in a memory) and the like. Also, “determining” may include resolving, selecting, choosing, establishing and the like.
  • the various operations of methods described above may be performed by any suitable means capable of performing the corresponding functions.
  • the means may include various hardware and/or software component (s) and/or module (s) , including, but not limited to a circuit, an application specific integrated circuit (ASIC) , or processor.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • PLD programmable logic device
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • an example hardware configuration may comprise a processing system in a wireless node.
  • the processing system may be implemented with a bus architecture.
  • the bus may include any number of interconnecting buses and bridges depending on the specific application of the processing system and the overall design constraints.
  • the bus may link together various circuits including a processor, machine-readable media, and a bus interface.
  • the bus interface may be used to connect a network adapter, among other things, to the processing system via the bus.
  • the network adapter may be used to implement the signal processing functions of the PHY layer.
  • a user interface e.g., keypad, display, mouse, joystick, etc.
  • a user interface e.g., keypad, display, mouse, joystick, etc.
  • the bus may also link various other circuits such as timing sources, peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further.
  • the processor may be implemented with one or more general-purpose and/or special-purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuitry that can execute software. Those skilled in the art will recognize how best to implement the described functionality for the processing system depending on the particular application and the overall design constraints imposed on the overall system.
  • the functions may be stored or transmitted over as one or more instructions or code on a computer readable medium.
  • Software shall be construed broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • Computer-readable media include both computer storage media and communication media including any medium that facilitates transfer of a computer program 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 media.
  • a computer-readable storage medium may be coupled to a processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor.
  • the machine-readable media may include a transmission line, a carrier wave modulated by data, and/or a computer readable storage medium with instructions stored thereon separate from the wireless node, all of which may be accessed by the processor through the bus interface.
  • the machine-readable media, or any portion thereof may be integrated into the processor, such as the case may be with cache and/or general register files.
  • machine-readable storage media may include, by way of example, 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 medium, or any combination thereof.
  • RAM Random Access Memory
  • ROM Read Only Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read-Only Memory
  • EEPROM Electrical Erasable Programmable Read-Only Memory
  • registers magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof.
  • the machine-readable media may be embodied in a computer-program product.
  • a software module may comprise a single instruction, or many instructions, and may be distributed over several different code segments, among different programs, and across multiple storage media.
  • the computer-readable media may comprise a number of software modules.
  • the software modules include instructions that, when executed by an apparatus such as a processor, cause the processing system to perform various functions.
  • the software modules may include a transmission module and a receiving module. Each software module may reside in a single storage device or be distributed across multiple storage devices.
  • a software module may be loaded into RAM from a hard drive when a triggering event occurs.
  • the processor may load some of the instructions into cache to increase access speed.
  • One or more cache lines may then be loaded into a general register file for execution by the processor.
  • any connection is properly termed a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared (IR) , radio, and microwave
  • the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • Disk and disc include compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.
  • computer-readable media may comprise non-transitory computer-readable media (e.g., tangible media) .
  • computer-readable media may comprise transitory computer-readable media (e.g., a signal) . Combinations of the above should also be included within the scope of computer-readable media.
  • certain aspects may comprise a computer program product for performing the operations presented herein.
  • a computer program product may comprise 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, instructions for performing the operations described herein and illustrated in FIG. 11 and/or FIG. 12.
  • modules and/or other appropriate means for performing the methods and techniques described herein can be downloaded and/or otherwise obtained by a user terminal and/or base station as applicable.
  • a user terminal and/or base station can be coupled to a server to facilitate the transfer of means for performing the methods described herein.
  • various methods described herein can be provided via storage means (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc. ) , such that a user terminal and/or base station can obtain the various methods upon coupling or providing the storage means to the device.
  • storage means e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.
  • CD compact disc
  • floppy disk etc.
  • any other suitable technique for providing the methods and techniques described herein to a device can be utilized.

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Abstract

Certains aspects de la présente invention concernent des techniques pour restreindre l'utilisation d'informations d'aide à la sélection d'une tranche de réseau unique (S-NSSAI) dans des mises à jour de politique de sélection de trajet (URSP) d'équipement utilisateur (UE). Un procédé donné à titre d'exemple, qui peut être mis en oeuvre par une entité de réseau, comprend généralement les étapes suivantes : déterminer de mettre à jour une URSP; transmettre au moins un élément d'informations (IE) de S-NSSAI, à l'exclusion des S-NSSAI mappés. Un procédé donné à titre d'exemple, qui peut être mis en oeuvre par un UE, comprend généralement les étapes suivantes : recevoir une mise à jour d'URSP comprenant au moins un IE de S-NSSAI, et déterminer s'il faut accepter ou rejeter la mise à jour d'URSP selon que la mise à jour d'URSP comprend ou non au moins un IE de S-NSSAI comportant une S-NSSAI mappée.
PCT/CN2020/105278 2020-07-28 2020-07-28 Restriction relative à des informations d'aide à la sélection d'une tranche de réseau unique dans une politique de sélection de trajet d'équipement utilisateur Ceased WO2022021088A1 (fr)

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