WO2022119832A1 - Équipement utilisateur configurable comprenant plusieurs modèles d'intervalle de mesure - Google Patents

Équipement utilisateur configurable comprenant plusieurs modèles d'intervalle de mesure Download PDF

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Publication number
WO2022119832A1
WO2022119832A1 PCT/US2021/061190 US2021061190W WO2022119832A1 WO 2022119832 A1 WO2022119832 A1 WO 2022119832A1 US 2021061190 W US2021061190 W US 2021061190W WO 2022119832 A1 WO2022119832 A1 WO 2022119832A1
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WIPO (PCT)
Prior art keywords
configuration
new
measurements
measurement
prs
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PCT/US2021/061190
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English (en)
Inventor
Andrey Chervyakov
Rui Huang
Hua Li
Candy YIU
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Intel Corporation
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Publication of WO2022119832A1 publication Critical patent/WO2022119832A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0069—Allocation based on distance or geographical location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • Some embodiments relate to wireless networks including 3 GPP
  • 5G networks including 5G new radio (NR) (or 5G-NR) networks.
  • Some embodiments pertain to configuring User Equipment with measurement gap (MG) patterns.
  • Measurement Gap The time duration during which a UE suspends it communication with its serving cell to measure an inter-frequency neighbor or other RAT neighbors is known as Measurement Gap (MeasGap).
  • MeasGap Measurement Gap
  • FIG. 1 A illustrates an architecture of a network, in accordance with some embodiments.
  • FIG. IB and FIG. 1C illustrate a non-roaming 5G system architecture in accordance with some embodiments.
  • FIG. 2 illustrates the use of one or more measurement gap patterns in accordance with some embodiments.
  • FIG. 3 illustrates a MeasGapConfig information element in accordance with some embodiments.
  • FIG. 4 illustrates a functional block diagram of a wireless communication device in accordance with some embodiments.
  • radio-resource control (RRC) signalling is responsible for providing a measurement gap pattern configuration to UE. This may be done using the MeasGapConfig IE which may be carried by an RRC Reconfiguration message. A first part of this message may specify the control setup/release of the measurement gap and a second part may specify the measurement gap configuration and controls the setup/release.
  • RRC radio-resource control
  • Embodiments disclosed herein are directed to a user equipment (UE) configurable with more than one measurement gap pattern.
  • user equipment (UE) configured for operation in a 5 th generation (5G) network may be configured with an initial measurement gap (MG) configuration for radio-resource management (RRM) may request a new MG configuration from a generation node B (gNB) for measurement of positioning reference signal (PRS) in response to a location procedure initiated by a location measurement function (LMF) in the network.
  • a MeasGapConfig IE may configure the UE with the new MG configuration performing the PRS measurements.
  • the UE may use the initial MG configuration for RRM.
  • FIG. 1 A illustrates an architecture of a network in accordance with some embodiments.
  • the network 140 A is shown to include user equipment (UE) 101 and UE 102.
  • the UEs 101 and 102 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks) but may also include any mobile or non-mobile computing device, such as Personal Data Assistants (PDAs), pagers, laptop computers, desktop computers, wireless handsets, drones, or any other computing device including a wired and/or wireless communications interface.
  • PDAs Personal Data Assistants
  • the UEs 101 and 102 can be collectively referred to herein as UE 101, and UE 101 can be used to perform one or more of the techniques disclosed herein.
  • Any of the radio links described herein may operate according to any exemplary radio communication technology and/or standard.
  • LTE and LTE -Advanced are standards for wireless communications of high-speed data for UE such as mobile telephones.
  • carrier aggregation is a technology according to which multiple carrier signals operating on different frequencies may be used to carry communications for a single UE, thus increasing the bandwidth available to a single device.
  • carrier aggregation may be used where one or more component carriers operate on unlicensed frequencies.
  • Embodiments described herein can be used in the context of any spectrum management scheme including, for example, dedicated licensed spectrum, unlicensed spectrum, (licensed) shared spectrum (such as Licensed Shared Access (LSA) in 2.3-2.4 GHz, 3.4-3.6 GHz, 3.6-3.8 GHz, and further frequencies and Spectrum Access System (SAS) in 3.55-3.7 GHz and further frequencies).
  • LSA Licensed Shared Access
  • SAS Spectrum Access System
  • Embodiments described herein can also be applied to different Single Carrier or OFDM flavors (CP-OFDM, SC-FDMA, SC-OFDM, filter bank-based multicarrier (FBMC), OFDMA, etc.) and in particular 3GPP NR (New Radio) by allocating the OFDM carrier data bit vectors to the corresponding symbol resources.
  • CP-OFDM Single Carrier or OFDM flavors
  • SC-FDMA SC-FDMA
  • SC-OFDM filter bank-based multicarrier
  • OFDMA filter bank-based multicarrier
  • 3GPP NR New Radio
  • any of the UEs 101 and 102 can comprise an Intemet-of-Things (loT) UE or a Cellular loT (CIoT) UE, which can comprise a network access layer designed for low-power loT applications utilizing short-lived UE connections.
  • any of the UEs 101 and 102 can include a narrowband (NB) loT UE (e.g., such as an enhanced NB- loT (eNB-IoT) UE and Further Enhanced (FeNB-IoT) UE).
  • NB narrowband
  • eNB-IoT enhanced NB- loT
  • FeNB-IoT Further Enhanced
  • An loT UE can utilize technologies such as machine-to-machine (M2M) or machine-type communications (MTC) for exchanging data with an MTC server or device via a public land mobile network (PLMN), Proximity-Based Service (ProSe) or device-to-device (D2D) communication, sensor networks, or loT networks.
  • M2M or MTC exchange of data may be a machine-initiated exchange of data.
  • An loT network includes interconnecting loT UEs, which may include uniquely identifiable embedded computing devices (within the Internet infrastructure), with short-lived connections.
  • the loT UEs may execute background applications (e.g., keep-alive messages, status updates, etc.) to facilitate the connections of the loT network.
  • any of the UEs 101 and 102 can include enhanced MTC (eMTC) UEs or further enhanced MTC (FeMTC) UEs.
  • the UEs 101 and 102 may be configured to connect, e.g., communicatively couple, with a radio access network (RAN) 110.
  • the RAN 110 may be, for example, an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN), a NextGen RAN (NG RAN), or some other type of RAN.
  • UMTS Evolved Universal Mobile Telecommunications System
  • E-UTRAN Evolved Universal Mobile Telecommunications System
  • NG RAN NextGen RAN
  • the UEs 101 and 102 utilize connections 103 and 104, respectively, each of which comprises a physical communications interface or layer (discussed in further detail below); in this example, the connections 103 and 104 are illustrated as an air interface to enable communicative coupling and can be consistent with cellular communications protocols, such as a Global System for Mobile Communications (GSM) protocol, a code-division multiple access (CDMA) network protocol, a Push-to- Talk (PTT) protocol, a PTT over Cellular (POC) protocol, a Universal Mobile Telecommunications System (UMTS) protocol, a 3GPP Long Term Evolution (LTE) protocol, a fifth-generation (5G) protocol, a New Radio (NR) protocol, and the like.
  • GSM Global System for Mobile Communications
  • CDMA code-division multiple access
  • PTT Push-to- Talk
  • POC PTT over Cellular
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • 5G fifth-generation
  • NR New Radio
  • the UEs 101 and 102 may further directly exchange communication data via a ProSe interface 105.
  • the ProSe interface 105 may alternatively be referred to as a sidelink interface comprising one or more logical channels, including but not limited to a Physical Sidelink Control Channel (PSCCH), a Physical Sidelink Shared Channel (PSSCH), a Physical Sidelink Discovery Channel (PSDCH), and a Physical Sidelink Broadcast Channel (PSBCH).
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the UE 102 is shown to be configured to access an access point (AP) 106 via connection 107.
  • the connection 107 can comprise a local wireless connection, such as, for example, a connection consistent with any IEEE 802.11 protocol, according to which the AP 106 can comprise a wireless fidelity (WiFi) router.
  • WiFi wireless fidelity
  • the AP 106 is shown to be connected to the Internet without connecting to the core network of the wireless system (described in further detail below).
  • the RAN 110 can include one or more access nodes that enable the connections 103 and 104.
  • These access nodes can be referred to as base stations (BSs), NodeBs, evolved NodeBs (eNBs), Next Generation NodeBs (gNBs), RAN nodes, and the like, and can comprise ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell).
  • the communication nodes 111 and 112 can be transmission/reception points (TRPs). In instances when the communication nodes 111 and 112 are NodeBs (e.g., eNBs or gNBs), one or more TRPs can function within the communication cell of the NodeBs.
  • TRPs transmission/reception points
  • RAN 110 may include one or more RAN nodes for providing macrocells, e.g., macro-RAN node 111, and one or more RAN nodes for providing femtocells or picocells (e.g., cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells), e.g., low power (LP) RAN node 112.
  • macro-RAN node 111 e.g., macro-RAN node 111
  • femtocells or picocells e.g., cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells
  • LP low power
  • any of the RAN nodes 111 and 112 can terminate the air interface protocol and can be the first point of contact for the UEs 101 and 102.
  • any of the RAN nodes 111 and 112 can fulfill various logical functions for the RAN 110 including, but not limited to, radio network controller (RNC) functions such as radio bearer management, uplink and downlink dynamic radio resource management and data packet scheduling, and mobility management.
  • RNC radio network controller
  • any of the nodes 111 and/or 112 can be a new generation Node-B (gNB), an evolved node-B (eNB), or another type of RAN node.
  • gNB Node-B
  • eNB evolved node-B
  • the RAN 110 is shown to be communicatively coupled to a core network (CN) 120 via an SI interface 113.
  • the CN 120 may be an evolved packet core (EPC) network, a NextGen Packet Core (NPC) network, or some other type of CN (e.g., as illustrated in reference to FIGS. 1B-1C).
  • EPC evolved packet core
  • NPC NextGen Packet Core
  • the SI interface 113 is split into two parts: the Sl-U interface 114, which carries traffic data between the RAN nodes 111 and 112 and the serving gateway (S-GW) 122, and the Sl-mobility management entity (MME) interface 115, which is a signaling interface between the RAN nodes 111 and 112 and MMEs 121.
  • S-GW serving gateway
  • MME Sl-mobility management entity
  • the CN 120 comprises the MMEs 121, the S-GW 122, the Packet Data Network (PDN) Gateway (P-GW) 123, and a home subscriber server (HSS) 124.
  • the MMEs 121 may be similar in function to the control plane of legacy Serving General Packet Radio Service (GPRS) Support Nodes (SGSN).
  • the MMEs 121 may manage mobility embodiments in access such as gateway selection and tracking area list management.
  • the HSS 124 may comprise a database for network users, including subscription-related information to support the network entities' handling of communication sessions.
  • the CN 120 may comprise one or several HSSs 124, depending on the number of mobile subscribers, on the capacity of the equipment, on the organization of the network, etc.
  • the HSS 124 can provide support for routing/roaming, authentication, authorization, naming/addressing resolution, location dependencies, etc.
  • the S-GW 122 may terminate the SI interface 113 towards the RAN 110, and routes data packets between the RAN 110 and the CN 120.
  • the S-GW 122 may be a local mobility anchor point for inter-RAN node handovers and also may provide an anchor for inter-3GPP mobility.
  • Other responsibilities of the S-GW 122 may include a lawful intercept, charging, and some policy enforcement.
  • the P-GW 123 may terminate an SGi interface toward a PDN.
  • the P-GW 123 may route data packets between the EPC network 120 and external networks such as a network including the application server 184 (alternatively referred to as application function (AF)) via an Internet Protocol (IP) interface 125.
  • the P-GW 123 can also communicate data to other external networks 131 A, which can include the Internet, IP multimedia subsystem (IPS) network, and other networks.
  • the application server 184 may be an element offering applications that use IP bearer resources with the core network (e.g., UMTS Packet Services (PS) domain, LTE PS data services, etc.).
  • PS UMTS Packet Services
  • the P-GW 123 is shown to be communicatively coupled to an application server 184 via an IP interface 125.
  • the application server 184 can also be configured to support one or more communication services (e.g., Voice-over- Internet Protocol (VoIP) sessions, PTT sessions, group communication sessions, social networking services, etc.) for the UEs 101 and 102 via the CN 120.
  • VoIP Voice-over- Internet Protocol
  • the P-GW 123 may further be a node for policy enforcement and charging data collection.
  • Policy and Charging Rules Function (PCRF) 126 is the policy and charging control element of the CN 120.
  • PCRF Policy and Charging Rules Function
  • HPLMN Home Public Land Mobile Network
  • IP-CAN Internet Protocol Connectivity Access Network
  • the PCRF 126 may be communicatively coupled to the application server 184 via the P- GW 123.
  • the communication network 140 A can be an loT network or a 5G network, including 5G new radio network using communications in the licensed (5GNR) and the unlicensed (5GNR-U) spectrum.
  • 5GNR licensed
  • 5GNR-U unlicensed
  • NB-IoT narrowband-IoT
  • An NG system architecture can include the RAN 110 and a 5G network core (5GC) 120.
  • the NG-RAN 110 can include a plurality of nodes, such as gNBs and NG-eNBs.
  • the core network 120 e.g., a 5G core network or 5GC
  • the AMF and the UPF can be communicatively coupled to the gNBs and the NG-eNBs via NG interfaces. More specifically, in some embodiments, the gNBs and the NG-eNBs can be connected to the AMF by NG- C interfaces, and to the UPF by NG-U interfaces.
  • the gNBs and the NG-eNBs can be coupled to each other via Xn interfaces.
  • the NG system architecture can use reference points between various nodes as provided by 3GPP Technical Specification (TS) 23.501 (e.g., V15.4.0, 2018-12).
  • TS 3GPP Technical Specification
  • each of the gNBs and the NG-eNBs can be implemented as a base station, a mobile edge server, a small cell, a home eNB, and so forth.
  • a gNB can be a master node (MN) and NG-eNB can be a secondary node (SN) in a 5G architecture.
  • MN master node
  • SN secondary node
  • FIG. IB illustrates a non-roaming 5G system architecture in accordance with some embodiments.
  • a 5G system architecture 140B in a reference point representation. More specifically, UE 102 can be in communication with RAN 110 as well as one or more other 5G core (5GC) network entities.
  • 5GC 5G core
  • the 5G system architecture 140B includes a plurality of network functions (NFs), such as access and mobility management function (AMF) 132, session management function (SMF) 136, policy control function (PCF) 148, application function (AF) 150, user plane function (UPF) 134, network slice selection function (NSSF) 142, authentication server function (AUSF) 144, and unified data management (UDM)/home subscriber server (HSS) 146.
  • the UPF 134 can provide a connection to a data network (DN) 152, which can include, for example, operator services, Internet access, or third-party services.
  • DN data network
  • the AMF 132 can be used to manage access control and mobility and can also include network slice selection functionality.
  • the SMF 136 can be configured to set up and manage various sessions according to network policy.
  • the UPF 134 can be deployed in one or more configurations according to the desired service type.
  • the PCF 148 can be configured to provide a policy framework using network slicing, mobility management, and roaming (similar to PCRF in a 4G communication system).
  • the UDM can be configured to store subscriber profiles and data (similar to an HSS in a 4G communication system).
  • the 5G system architecture 140B includes an IP multimedia subsystem (IMS) 168B as well as a plurality of IP multimedia core network subsystem entities, such as call session control functions (CSCFs). More specifically, the IMS 168B includes a CSCF, which can act as a proxy CSCF (P-CSCF) 162BE, a serving CSCF (S-CSCF) 1648, an emergency CSCF (E-CSCF) (not illustrated in FIG. IB), or interrogating CSCF (I-CSCF) 166B.
  • the P-CSCF 162B can be configured to be the first contact point for the UE 102 within the IM subsystem (IMS) 168B.
  • the S-CSCF 1648 can be configured to handle the session states in the network, and the E-CSCF can be configured to handle certain embodiments of emergency sessions such as routing an emergency request to the correct emergency center or PSAP.
  • the I-CSCF 166B can be configured to function as the contact point within an operator's network for all IMS connections destined to a subscriber of that network operator, or a roaming subscriber currently located within that network operator's service area.
  • the I-CSCF 166B can be connected to another IP multimedia network 170E, e.g., an IMS operated by a different network operator.
  • the UDM/HSS 146 can be coupled to an application server 160E, which can include a telephony application server (TAS) or another application server (AS).
  • the AS 160B can be coupled to the IMS 168B via the S-CSCF 164B or the I-CSCF 166B.
  • FIG. IB illustrates the following reference points: Nl (between the UE 102 and the AMF 132), N2 (between the RAN 110 and the AMF 132), N3 (between the RAN 110 and the UPF 134), N4 (between the SMF 136 and the UPF 134), N5 (between the PCF 148 and the AF 150, not shown), N6 (between the UPF 134 and the DN 152), N7 (between the SMF 136 and the PCF 148, not shown), N8 (between the UDM 146 and the AMF 132, not shown), N9 (between two UPFs 134, not shown), N10 (between the UDM 146 and the SMF 136, not shown), Nl 1 (between the AMF 132 and the SMF 136, not shown), N12 (between the AUSF 144 and the AMF 132, not shown), N13 (between the AUSF 144 and the UDM
  • FIG. 1C illustrates a 5G system architecture 140C and a servicebased representation.
  • system architecture 140C can also include a network exposure function (NEF) 154 and a network repository function (NRF) 156.
  • NEF network exposure function
  • NRF network repository function
  • 5G system architectures can be service-based and interaction between network functions can be represented by corresponding point-to-point reference points Ni or as service-based interfaces.
  • service-based representations can be used to represent network functions within the control plane that enable other authorized network functions to access their services.
  • 5G system architecture 140C can include the following service-based interfaces: Namf 158H (a service-based interface exhibited by the AMF 132), Nsmf 1581 (a service-based interface exhibited by the SMF 136), Nnef 158B (a service-based interface exhibited by the NEF 154), Npcf 158D (a service-based interface exhibited by the PCF 148), aNudm 158E (a service-based interface exhibited by the UDM 146), Naf 158F (a service-based interface exhibited by the AF 150), Nnrf 158C (a service-based interface exhibited by the NRF 156), Nnssf 158A (a service-based interface exhibited by the NSSF 142), Nausf 158G (a service-based interface exhibited by the AU
  • any of the UEs or base stations described in connection with FIGS. 1 A-1C can be configured to perform the functionalities described herein.
  • NR next generation wireless communication system
  • 5G next generation wireless communication system
  • NR new radio
  • 3GPP LTE-Advanced with additional potential new Radio Access Technologies (RATs) to enrich people's lives with better, simple, and seamless wireless connectivity solutions.
  • RATs Radio Access Technologies
  • FIG. 2 illustrates the use of one or more measurement gap patterns in accordance with some embodiments.
  • FIG. 3 illustrates a/MeasGapConfig information element in accordance with some embodiments.
  • a user equipment (UE) configured for operation in a 5 th generation (5G) network may be configured with an initial measurement gap (MG) configuration (i.e., gapUE (see FIG. 3)) for measurement of radio-resource management (RRM) signals.
  • MG initial measurement gap
  • RRM radio-resource management
  • the UE may request a new MG configuration from a generation node B (gNB) for measurement of positioning reference signal (PRS) in response to a location procedure initiated by a location measurement function (LMF) in the network (see FIG. 2).
  • the UE may decode a measurement gap configuration (MeasGapConfig) information element (IE) from the gNB (see FIG. 2).
  • the MeasGapConfig IE may configure (i.e., grant) the UE with the new MG configuration (i.e., newgapUE (see FIG. 3)).
  • the UE may be configured for performing at least PRS measurements in accordance with the new MG configuration (see FIG. 2).
  • the UE may request a new MG configuration with a shorter measurement gap repetition period (MGRP) than the initial MG configuration when a shorter period between gaps is needed for the PRS measurements, although the scope of the embodiments is not limited in this respect.
  • the UE may request a new MG configuration with a longer a measurement gap length (MGL) than the initial MG configuration a longer measurement gap is needed for the PRS measurements, although the scope of the embodiments is not limited in this respect.
  • the UE may request the new (i.e., separate) MG configuration for the PRS measurements when a PRS resource duration is longer than an RRM measurement window for Sync Signal/PBCH block (SSB) measurements (e.g., longer than Sms) or when a period for the PRS measurements is substantially longer than a RRM measurement period.
  • SSB Sync Signal/PBCH block
  • the UE may need to perform the PRS measurement using a different or separate MG configuration (i.e., the new MG configuration).
  • the PRS resource duration is longer than Sms (which is the largest RRM measurement window for SSB).
  • the other is the period of PRS measurement is much longer than RRM measurement period (e.g. 160ms vs 40ms).
  • the UE may perform the RRM measurements using the new MG configuration when a measurement gap repetition period (MGRP) of the new MG configuration not less than an RRM measurement period and when a measurement gap length (MGL) of the new MG configuration is not less than a minimum RRM MGL.
  • MGRP measurement gap repetition period
  • MNL measurement gap length
  • the new MG configuration may be used for both PRS measurements and MRM measurements if the new MG configuration is sufficient for performing RRM measurements (i.e., measurement gaps occur often enough based on the MGRP and measurement gaps are long enough for RRM measurements).
  • the UE may refrain from using the initial MG configuration for the RRM measurements.
  • the new MG configuration if the new MG configuration is not sufficient for performing RRM measurements (i.e., measurement gaps do not occur often enough based on the MGRP (the measurement interval may be too long)), the initial MG configuration may continue to be used for the RRM measurements and the new MG configuration may be used for the PRS measurements.
  • the UE may refrain from requesting the new MG configuration for the PRS measurements when the PRS resource duration is not longer than the largest RRM measurement window for the SSB measurements and when the period of the PRS measurement is not substantially longer than the RRM measurement period.
  • the UE may decode an radio-resource control (RRC) reconfiguration message from the gNB that indicates a measurement gap length (MGL) of the new MG configuration.
  • RRC radio-resource control
  • the UE may receive the PRS transmitted by the gNB within the MGL of the new MG configuration.
  • the MGL of the new MG configuration may be longer than an MGL of the initial MG configuration.
  • the new MG configuration is a first new MG configuration for the PRS measurements.
  • the MeasGapConfig IE configures the UE with a second new MG configuration for use by the UE in performing the RRM measurements.
  • the UE may refrain from using the initial MG configuration when the MeasGapConfig IE configures the UE with the second new MG configuration for the RRM measurements.
  • first new MG configuration and the second new MG configuration may have different MGRPs, although this is not a requirement.
  • the MGRP of the first new MG configuration for performing the PRS measurements may be longer than the MGRP of the second new MG configuration for performing the RRM measurements.
  • the use of a shorter MGRP for performing RRM measurements may help with mobility management maintenance, although the scope of the embodiments is not limited in this respect.
  • the first new MG configuration and the second new MG configuration may be independent gap patterns configured by the gNB with the same/single MeasGapConfig IE.
  • the UE may decode an radio-resource control (RRC) reconfiguration message from the gNB that includes the MeasGapConfig IE.
  • RRC radio-resource control
  • the gNB may configure the UE with two independent MG configurations.
  • the location procedure initiated by the LMF is a procedure for downlink positioning requesting that the UE obtain a location estimate or to perform positioning measurements.
  • the LMF provides the UE with location measurement information including the PRS resource configuration (e.g., PRS bandwidth, number of symbols, etc.).
  • the UE may request the new MG configuration from the gNB for performing the positioning measurements (e.g., when a PRS resource duration is longer than a largest RRM measurement window for Sync Signal/PBCH block (SSB) measurements (e.g., longer than 5ms) or when a period for the PRS measurement is substantially longer than a RRM measurement period.
  • SSB Sync Signal/PBCH block
  • the RRM measurements may comprise Sync Signal/PBCH block (SSB) measurements using different SSB indexes and different transmission beams.
  • the UE may be configured for SSB based measurement timing configuration (SMTC), In these embodiments, during an SMTC period, the UE may be configured for radio-link monitoring and perform the RRM measurements.
  • SSB Sync Signal/PBCH block
  • SMTC SSB based measurement timing configuration
  • the Sync Signal/PBCH block (SSB) burst may include multiple SSBs. These multiple SSBs are associated with the different SSB indexes and with the different transmission beams other than CSI-RS signals can also be configured for beam management and measurement.
  • the measurement procedure is a UE power consuming procedure and to reduce UE power consumption
  • 5GNR has introduced SSB based measurement timing configuration also known as SMTC.
  • the SMTC defines a duration and periodicity that can be used to restrict the UE measurement on the certain resources.
  • UE will conduct the Radio Link Monitoring /Radio Resource Management measurement.
  • the Measurement Gap Repetition Period is the periodicity (in ms) at which measurement gap repeats.
  • the Measurement Gap Length is the length of a measurement gap in ms. Measurement gap lengths can be 1.5, 3, 3.5, 4, 5.5, and 6 ms, although the scope of the embodiments is not limited in this respect.
  • Some embodiments are directed to a non-transitory computer- readable storage medium to store instructions for execution by processing circuitry of a user equipment (UE) configured for operation in a 5 th generation (5G) network.
  • the processing circuitry may configure the UE to request a new MG configuration from a generation node B (gNB) for measurement of positioning reference signal (PRS) in response to a location procedure initiated by a location measurement function (LMF) in the network.
  • gNB generation node B
  • PRS positioning reference signal
  • LMF location measurement function
  • the processing circuitry may decode a measurement gap configuration (MeasGapConfig) information element (IE) from the gNB, the MeasGapConfig IE to configure the UE with the new MG configuration configure the UE for performing at least PRS measurements in accordance with the new MG configuration.
  • MeasGapConfig measurement gap configuration
  • IE information element
  • Some embodiments are directed to a generation node B (gNB) configured for operation in a 5 th generation (5G) network.
  • gNB generation node B
  • UE user equipment
  • MG initial measurement gap
  • RRM radio-resource management
  • the gNB may decode a request for a new MG configuration for measurement of positioning reference signal (PRS) from a UE in response to a location procedure initiated by a location measurement function (LMF) in the network.
  • PRS positioning reference signal
  • the gNB may also encode a measurement gap configuration (MeasGapConfig) information element (IE) for transmission to the UE, the MeasGapConfig IE to configure (i.e., grant) the UE with the new MG configuration (i.e., newgapUE).
  • the new MG configuration may be configured to the UE for performing both RRM and PRS measurements, although this is not a requirement as the UE may continue to perform the RRM measurements with the MG configuration.
  • Embodiments herein provide techniques associated with whether the measurement gap pattern for New Radio (NR) positioning measurement is applicable for only positioning reference signal (PRS) measurements or for both PRS and radio resource management (RRM) measurements.
  • NR New Radio
  • PRS positioning reference signal
  • RRM radio resource management
  • UE When there is only one gap pattern per UE is allowed, UE needs to request the new gap pattern when receiving the positioning measurement information from the Location Management Function (LMF). And the serving gNB can grant the new gap pattern to UE for the positioning measurement (step 3 in FIG. 2).
  • LMF Location Management Function
  • the serving gNB can grant the new gap pattern to UE for the positioning measurement (step 3 in FIG. 2).
  • both the legacy RRM requirement e.g. synchronization signal block (SSB) based
  • positioning measurement requirements are based on the new gap pattern.
  • the new requirements of measurement period shall be started from the first measurement gap repetition period (MGRP) (e.g. t3 in the FIG. 2).
  • MGRP first measurement gap repetition period
  • Embodiment 2 Independent gap pattern for RRM
  • the RRM measurement delay depending on the new gap pattern (such as in embodiment 1) will lead some problem of mobility management maintenance.
  • UE may handover (HO) to other cells because the measurement interval is too long.
  • more than one concurrent gap pattern may be configured to UE. Additionally, the measurement requirements may depend on the dedicated gap pattern.
  • the two gap patterns may be configured via radio resource control (RRC) signaling, such as in the MeasGapConjig information element, as shown in FIG. 3.
  • RRC radio resource control
  • FIG. 3 illustrates a MeasGapConfig information element in accordance with some embodiments.
  • the measurement gap configuration (MeasGapConfig) information element (IE) illustrated in FIG. 3 may be used to indicate a new measurement gap configuration and may be used configure a UE with a single measurement gap pattern or may be used to configure a UE with more than one measurement gap pattern.
  • FIG. 4 illustrates a functional block diagram of a wireless communication device, in accordance with some embodiments.
  • Wireless communication device 400 may be suitable for use as a UE or gNB configured for operation in a 5G NR network.
  • the communication device 400 may be suitable for use as a handheld device, a mobile device, a cellular telephone, a smartphone, a tablet, a netbook, a wireless terminal, a laptop computer, a wearable computer device, a femtocell, a high data rate (HDR) subscriber device, an access point, an access terminal, or other personal communication system (PCS) device.
  • HDR high data rate
  • PCS personal communication system
  • the communication device 400 may include communications circuitry 402 and a transceiver 410 for transmitting and receiving signals to and from other communication devices using one or more antennas 401.
  • the communications circuitry 402 may include circuitry that can operate the physical layer (PHY) communications and/or medium access control (MAC) communications for controlling access to the wireless medium, and/or any other communications layers for transmitting and receiving signals.
  • the communication device 400 may also include processing circuitry 406 and memory 408 arranged to perform the operations described herein. In some embodiments, the communications circuitry 402 and the processing circuitry 406 may be configured to perform operations detailed in the above figures, diagrams, and flows.
  • the communications circuitry 402 may be arranged to contend for a wireless medium and configure frames or packets for communicating over the wireless medium.
  • the communications circuitry 402 may be arranged to transmit and receive signals.
  • the communications circuitry 402 may also include circuitry for modulation/demodulation, upconversion/downconversion, filtering, amplification, etc.
  • the processing circuitry 406 of the communication device 400 may include one or more processors.
  • two or more antennas 401 may be coupled to the communications circuitry 402 arranged for sending and receiving signals.
  • the memory 408 may store information for configuring the processing circuitry 406 to perform operations for configuring and transmitting message frames and performing the various operations described herein.
  • the memory 408 may include any type of memory, including non-transitory memory, for storing information in a form readable by a machine (e.g., a computer).
  • the memory 408 may include a computer-readable storage device, read-only memory (ROM), random- access memory (RAM), magnetic disk storage media, optical storage media, flash-memory devices and other storage devices and media.
  • the communication device 400 may be part of a portable wireless communication device, such as a personal digital assistant (PDA), a laptop or portable computer with wireless communication capability, a web tablet, a wireless telephone, a smartphone, a wireless headset, a pager, an instant messaging device, a digital camera, an access point, a television, a medical device (e.g., a heart rate monitor, a blood pressure monitor, etc.), a wearable computer device, or another device that may receive and/or transmit information wirelessly.
  • PDA personal digital assistant
  • laptop or portable computer with wireless communication capability such as a personal digital assistant (PDA), a laptop or portable computer with wireless communication capability, a web tablet, a wireless telephone, a smartphone, a wireless headset, a pager, an instant messaging device, a digital camera, an access point, a television, a medical device (e.g., a heart rate monitor, a blood pressure monitor, etc.), a wearable computer device, or another device that may receive and/or transmit information wirelessly.
  • the communication device 400 may include one or more antennas 401.
  • the antennas 401 may include one or more directional or omnidirectional antennas, including, for example, dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas, or other types of antennas suitable for transmission of RF signals.
  • a single antenna with multiple apertures may be used instead of two or more antennas.
  • each aperture may be considered a separate antenna.
  • MIMO multiple-input multiple-output
  • the antennas may be effectively separated for spatial diversity and the different channel characteristics that may result between each of the antennas and the antennas of a transmitting device.
  • the communication device 400 may include one or more of a keyboard, a display, a non-volatile memoiy port, multiple antennas, a graphics processor, an application processor, speakers, and other mobile device elements.
  • the display may be an LCD screen including a touch screen.
  • the communication device 400 is illustrated as having several separate functional elements, two or more of the functional elements may be combined and may be implemented by combinations of software-configured elements, such as processing elements including digital signal processors (DSPs), and/or other hardware elements.
  • processing elements including digital signal processors (DSPs), and/or other hardware elements.
  • DSPs digital signal processors
  • some elements may include one or more microprocessors, DSPs, field-programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), radio-frequency integrated circuits (RFICs) and combinations of various hardware and logic circuitry for performing at least the functions described herein.
  • the functional elements of the communication device 400 may refer to one or more processes operating on one or more processing elements.
  • Example 1 may include a method of UE measurement gap pattern for NR positioning , wherein the new gap patterns can be configured to UE.
  • Example 2 may include the method of example 1 or some other example herein, wherein the new gap pattern can be for positioning measurement.
  • Example 3 may include the method of example 2 or some other example herein, wherein UE can request the new gap pattern when receiving the location measurement information from LMF.
  • Example 4 may include the method of example 1 or some other example herein, wherein the new gap pattern will override the existing gap pattern.
  • Example 5 may include the method of example 1 or some other example herein, wherein the new gap pattern can be independent with the existing gap pattern.
  • Example 6 may include the method of example 5 or some other example herein, wherein both the legacy RRM requirements and new positioning requirements are defined with this new gap pattem(e.g. new MGRP)
  • Example 7 may include the method of example 6 or some other example herein, wherein both the legacy RRM requirements and new positioning requirements are defined with different gap pattern
  • Example 8 may include the method of example 1 or some other example herein, wherein UE can start the measurement of positioning after the first MGRP configured by new gap pattern.
  • Example 9 may include a method of a UE, the method comprising: receiving configuration information for a measurement gap pattern for positioning measurements; and performing one or more positioning measurements on a positioning reference signal (PRS) based on the measurement gap pattern.
  • PRS positioning reference signal
  • Example 10 may include the method of example 9 or some other example herein, wherein the measurement gap pattern is a first measurement gap pattern, and wherein the method further comprises: receiving configuration information for a second measurement gap pattern; and performing one or more radio resource management (RRM) measurements based on the second measurement gap pattern.
  • RRM radio resource management
  • Example 11 may include the method of example 9-10 or some other example herein, further comprising requesting configuration of the gap pattern based on receipt of location measurement information from a location management function (LMF).
  • LMF location management function
  • Example 12 may include the method of example 9-11 or some other example herein, further comprising determining that the measurement gap pattern overrides an existing gap pattern.
  • Example 13 may include the method of example 9-12 or some other example herein, further comprising determining positioning measurement requirements and/or RRM requirements associated with the measurement gap pattern for PRS measurements and/or RRM measurements, respectively.
  • Example 14 may include the method of example 9-13 or some other example herein, wherein performing the one or more measurements includes starting a first measurement after a first measurement gap repetition period (MGRP) of the measurement gap pattern.
  • MGRP measurement gap repetition period
  • Example 15 may include the method of example 9-14 or some other example herein, wherein the measurement gap pattern is designated exclusively for the positioning measurements.
  • Example 16 may include the method of example 9-15 or some other example herein, wherein the configuration information is received via radio resource control (RRC) signaling.
  • RRC radio resource control
  • Example 17 may include a method of a gNB, the method comprising: encoding, for transmission to a user equipment (UE), configuration information for a measurement gap pattern for positioning measurements; and encoding a positioning reference signal (PRS) for transmission based on the measurement gap pattern.
  • UE user equipment
  • PRS positioning reference signal
  • Example 18 may include the method of example 17 or some other example herein, wherein the measurement gap pattern is a first measurement gap pattern, and wherein the method further comprises: encoding, for transmission to the UE, configuration information for a second measurement gap pattern; and encoding, for transmission, a reference signal for one or more radio resource management (RRM) measurements based on the second measurement gap pattern.
  • RRM radio resource management
  • Example 19 may include the method of example 18 or some other example herein, wherein the reference signal is a synchronization signal block (SSB) and/or a channel state information reference signal (CSI-RS).
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • Example 20 may include the method of example 17-19 or some other example herein, further comprising receiving, from the UE, a request for configuration of the gap pattern, wherein the configuration information is transmitted to the UE responsive to the request.
  • Example 21 may include the method of example 17-20 or some other example herein, wherein the measurement gap pattern is to override an existing gap pattern.
  • Example 22 may include the method of example 17-21 or some other example herein, wherein the measurement gap pattern is designated exclusively for the positioning measurements.
  • Example 23 may include the method of example 17-22 or some other example herein, wherein the configuration information is transmitted via radio resource control (RRC) signaling.
  • RRC radio resource control

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un équipement utilisateur (UE) configuré pour fonctionner en cinquième génération (5G) et au-delà d'un réseau, configurable pour l'utilisation de plusieurs configurations d'intervalle de mesure (MG) indépendantes, peut être configuré avec une configuration d'intervalle de mesure (MG) initiale pour la gestion de ressources radio (RRM). L'UE peut demander une nouvelle configuration de MG à partir d'un nœud B de génération (gNB) pour la mesure du signal de référence de positionnement (PRS) en réponse à une procédure de localisation initiée par une fonction de mesure d'emplacement (LMF) dans le réseau. Un IE MeasGapConfig peut configurer l'UE avec la nouvelle configuration de MG effectuant les mesures de PRS. L'UE peut utiliser la configuration de MG initiale pour la RRM.
PCT/US2021/061190 2020-12-01 2021-11-30 Équipement utilisateur configurable comprenant plusieurs modèles d'intervalle de mesure WO2022119832A1 (fr)

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