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WO2018063997A1 - Systèmes, procédés et dispositifs pour sélectionner une largeur de bande de mesure - Google Patents

Systèmes, procédés et dispositifs pour sélectionner une largeur de bande de mesure Download PDF

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Publication number
WO2018063997A1
WO2018063997A1 PCT/US2017/053281 US2017053281W WO2018063997A1 WO 2018063997 A1 WO2018063997 A1 WO 2018063997A1 US 2017053281 W US2017053281 W US 2017053281W WO 2018063997 A1 WO2018063997 A1 WO 2018063997A1
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WO
WIPO (PCT)
Prior art keywords
bandwidth
index
measurement
frequency
carrier
Prior art date
Application number
PCT/US2017/053281
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English (en)
Inventor
Rui Huang
Yang Tang
Candy YIU
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Intel IP Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of WO2018063997A1 publication Critical patent/WO2018063997A1/fr

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Classifications

    • 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
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters

Definitions

  • the present disclosure relates to cellular communications and more specifically to selecting a measurement bandwidth for testing.
  • Wireless mobile communication technology uses various standards and protocols to transmit data between a base station and a wireless mobile device.
  • Wireless communication system standards and protocols can include the 3rd Generation Partnership Project (3GPP) long term evolution (LTE); the Institute of Electrical and Electronics Engineers (IEEE) 802.16 standard, which is commonly known to industry groups as worldwide interoperability for microwave access (WiMAX); and the IEEE 802.11 standard for wireless local area networks (WLAN), which is commonly known to industry groups as Wi-Fi.
  • 3GPP 3rd Generation Partnership Project
  • LTE long term evolution
  • IEEE 802.16 which is commonly known to industry groups as worldwide interoperability for microwave access
  • Wi-Fi wireless local area networks
  • the base station can include a RAN Node such as a Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (also commonly denoted as evolved Node B, enhanced Node B, eNodeB, or eNB) and/or Radio Network Controller (RNC) in an E-UTRAN, which communicate with a wireless communication device, known as user equipment (UE).
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • Node B also commonly denoted as evolved Node B, enhanced Node B, eNodeB, or eNB
  • RNC Radio Network Controller
  • UE user equipment
  • RAN Nodes can include a 5G Node.
  • RANs use a radio access technology (RAT) to communicate between the RAN Node and UE.
  • RANs can include global system for mobile communications (GSM), enhanced data rates for GSM evolution (EDGE) RAN (GERAN), Universal Terrestrial Radio Access Network (UTRAN), and/or E-UTRAN, which provide access to communication services through a core network.
  • GSM global system for mobile communications
  • EDGE enhanced data rates for GSM evolution
  • GERAN enhanced data rates for GSM evolution
  • UTRAN Universal Terrestrial Radio Access Network
  • E-UTRAN E-UTRAN
  • a core network can be connected to the UE through the RAN Node.
  • the core network can include a serving gateway (SGW), a packet data network (PDN) gateway (PGW), an access network detection and selection function (ANDSF) server, an enhanced packet data gateway (ePDG) and/or a mobility management entity (MME)
  • SGW serving gateway
  • PGW packet data network gateway
  • ANDSF access network detection and selection function
  • ePDG enhanced packet data gateway
  • MME mobility management entity
  • FIG. 1 is a schematic diagram illustrating time division multiplexing (TDM) measurement bandwidth with multiple subcarrier spacing consistent with embodiments disclosed herein.
  • FIG. 2 is a schematic diagram illustrating communication between a RAN node and a user equipment (UE) consistent with embodiments disclosed herein.
  • UE user equipment
  • FIG. 3 is a schematic diagram illustrating the structure of a long term evolution (LTE) communication frame consistent with embodiments disclosed herein.
  • LTE long term evolution
  • FIG. 4A is a diagram illustrating an LTE frequency division duplex (FDD) frame consistent with embodiments disclosed herein.
  • FDD frequency division duplex
  • FIG. 4B is a diagram illustrating an LTE time division duplex (TDD) frame consistent with embodiments disclosed herein.
  • FIG. 5 is a flow chart illustrating a method for performing a frequency measurement using an indexed minimum measurement bandwidth consistent with embodiments disclosed herein.
  • FIG. 6 is a diagram of an architecture of a system of a network in accordance with some embodiments.
  • FIG. 7 is a diagram illustrating example components of a device in accordance with some embodiments.
  • FIG. 8 is a diagram illustrating example interfaces of baseband circuitry in accordance with some embodiments.
  • FIG. 9 is a diagram illustrating a control plane protocol stack in accordance with some embodiments.
  • FIG. 10 is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium. Detailed Description
  • a user equipment UE
  • NR new radio
  • R has flexible channel bandwidth (e.g., from 1.44 MHz to greater than 80 MHz)
  • a single central minimum measurement bandwidth may not be sufficient for quality estimation.
  • the UE can select an index of measurement bandwidth (such as in a random frequency hopping pattern) for inter-frequency tests (e.g., cell specific reference signal received power (RSRP) or beam specific RSRP).
  • RSRP cell specific reference signal received power
  • the network sends the numerology to the UE when it is in both idle and connected modes.
  • NR is designed with different features.
  • NR supports flexible network (NW) and UE channel bandwidth.
  • NW flexible network
  • NR carrier bandwidth allows efficient unlicensed spectrum access.
  • the NR physical layer design allows for fine granularity in terms of NR carrier bandwidth.
  • the NR physical layer design also allows devices with different bandwidth capabilities to efficiently access the same NR carrier regardless of the NR carrier bandwidth. Devices do not necessarily support the same set of bandwidths for transmission and reception.
  • the network carrier bandwidth is not necessarily the same for downlink and uplink.
  • NR One characteristic of NR is a flexible channel bandwidth.
  • eMBB enhanced mobile broadband
  • MTC machine type communication
  • a much wider range of bandwidth can be used (e.g., 1.44 MHz to greater than or equal to 80 MHz).
  • eMBB enhanced mobile broadband
  • MTC machine type communication
  • a minimum measurement bandwidth either 6 RBs or 25 RBs is used, which is located in the center of transmission bandwidth and is considered when defining the measurement requirements.
  • these minimum measurement bandwidth either 6 RBs or 25 RBs
  • the references signal transmitted in the center of the carrier can be beamformed.
  • FIG. 1 is a schematic diagram illustrating time division multiplexing (TDM) measurement bandwidth with multiple subcarrier spacing.
  • TDM time division multiplexing
  • a first cell or beam 102 measurement can be taken in the middle of a bandwidth at a first minimum measurement bandwidth 108.
  • a second cell or beam 104 measurement can be taken at a first end of a bandwidth at a second minimum measurement bandwidth 1 10.
  • a third cell or beam 106 measurement can be taken at a second end of a bandwidth at a third minimum measurement bandwidth 1 12.
  • the index of system bandwidth can be selected differently.
  • the index of measurement bandwidth can be selected randomly.
  • the index of measurement bandwidth is selected randomly within a whole system bandwidth fixed when a reference signal is transmitted with beamforming.
  • the index of measurement bandwidth is fixed when a reference signal is within an omnidirectional transmission when the system bandwidth is smaller than 20MHz.
  • the index of measurement bandwidth is randomly selected when a reference signal is within an omnidirectional transmission when the system bandwidth is larger than 20MHz.
  • the specifications on the minimum measurement bandwidth for cell mobility can be based on cell specific RSRP as shown in Table 1.
  • a measurement bandwidth can be specified as an index (n prb ) of a physical resource block (RB or PRB) within a bandwidth or carrier.
  • the index minimum measurement bandwidth could be random, frequency hopping.
  • the specifications on the minimum measurement bandwidth for beam mobility can be based on beam specific RSRP as shown in Table 2.
  • a measurement bandwidth can be specified as an index (n prb ) of a physical resource block within a bandwidth or carrier.
  • FIG. 2 is a schematic diagram illustrating communication between a RAN node 204 and a user equipment (UE) 202 consistent with embodiments disclosed herein.
  • UE 202 can be attached to RAN node 204 along with other UEs 203.
  • RAN node 204 can provide network access to network infrastructure 216 to UE 202 and UEs 203.
  • a UE can send or receive rules 210, thresholds 213 and/or measurements 214 to or from RAN node 204.
  • UE 202 performs random frequency hopping measurements of a minimum measurement bandwidth of access link A 212, such as seen in FIG. 1.
  • UE 202 can send the results of such measurements to RAN node 204.
  • the random frequency hopping of a minimum measurement bandwidth of access link A 212
  • measurements of a minimum measurement bandwidth of access link A 212 can be used in mobility decisions for UE 202.
  • FIG. 3 is a schematic diagram 300 illustrating the structure of a long term evolution (LTE) communication frame 305, which is less flexible than NR.
  • a frame 305 has a duration of 10 milliseconds (ms).
  • the frame 305 includes ten subframes 310, each having a duration of 1 ms.
  • Each subframe 310 includes two slots 315, each having a duration of 0.5 ms.
  • the frame 305 includes 20 slots 315.
  • Each slot 315 includes six or seven symbols 320 (e.g., orthogonal frequency-division multiplexing (OFDM) symbols, single-carrier frequency-division multiple access (SC- FDMA) symbols).
  • the number of symbols 320 in each slot 315 is based on the size of the cyclic prefixes (CP) 325. For example, the number of symbols 320 in the slot 315 is seven while in normal mode CP and six in extended mode CP.
  • the smallest allocable unit for transmission is a resource block 330 (i.e., physical resource block (PRB)). Transmissions are scheduled by RB 330.
  • a RB 330 consists of 12 consecutive subcarriers 335, or 180 kHz, for the duration of one slot 315 (0.5 ms).
  • DMRS demodulation reference signals
  • SRS sounding reference signals
  • PUCCH physical uplink control channel
  • PUCCH physical uplink control channel
  • DMRS 345 are transmitted in the fourth single-carrier frequency-division multiple access (SC-FDMA) symbol of a slot 315.
  • SC-FDMA single-carrier frequency-division multiple access
  • the DMRS sequence is mapped to the RBs allocated to the PUSCH in symbol 3 (i.e., the fourth SC-FDMA symbol) in each slot 315 for normal cyclic prefix (CP) and symbol 2 (not shown) (i.e., the third SC-FDMA symbol) in each slot 315 for extended CP.
  • the DMRS 345 may be the same size as the assigned resource (e.g., resource element 340).
  • DMRS 345 are user-specific reference signals. Therefore, in order to support a large number of UEs (in multiple cells, for example), a large number of different DMRS sequences are needed.
  • DMRS 345 may be generated based on the Zadoff-Chu sequence.
  • Zadoff-Chu sequences are constant amplitude zero autocorrelation (CAZAC) sequences. Accordingly, different DMRS sequences may be generated by applying different cyclic shifts (e.g., different) to the Zadoff-Chu sequence.
  • FIG. 4A is a diagram illustrating an LTE frequency division duplex (FDD) frame consistent with embodiments disclosed herein.
  • FDD frequency division duplex
  • upload subframes 406 are on a different carrier (frequency) than download frames 404.
  • CRS is transmitted in every subframe, except in the MBSFN region of the MBSFN subframes.
  • PSS and SSS are transmitted in subframes 0 and 5.
  • PBCH is transmitted in subframe 0.
  • Paging occurs in subframes 0, 4, 5 and 9 on frames satisfying the equation SFN mod T, where T is the DRX cycle of the UE.
  • MBSFN subframes a first one or two symbols are used as non-MBSFN region.
  • CRS is transmitted on the first symbol of non-MBSFN region of an MBSFN subframe.
  • FIG. 4B is a diagram illustrating an LTE time division duplex (TDD) frame consistent with embodiments disclosed herein.
  • TDD time division duplex
  • Special subframe 418 includes DwPTS 412, a guard period (GP) 414 and uplink pilot time slot (UpPTS) 416.
  • CRS is transmitted in every downlink subframe, except in the MBSFN region of the MBSFN subframes.
  • PSS are transmitted on subframes 0 and 5.
  • SSS are transmitted in subframes 1 and 6.
  • Physical broadcast channel (PBCH) is transmitted in subframe 0.
  • SIB System information block
  • SFN systems frame number
  • SFN mod 2 0 (i.e., every other frame).
  • DRX discontinuous reception
  • MBSFN subframe a first one or two symbols are used as non-MBSFN regions.
  • CRS is transmitted on the first symbol of non-MBSFN region of an MBSFN subframe.
  • Subframes 3, 7, 8, 9 can be configured as MBSFN subframe for TDD.
  • FIG. 5 is a flow chart illustrating a method for performing a frequency measurement using an indexed minimum measurement bandwidth consistent with embodiments disclosed herein.
  • the method can be performed by systems such as those shown in FIGs. 2 and/or 6, including RAN node 204 and UE 202.
  • the UE processes a new radio (NR) carrier numerology of a NR carrier provided by a RAN node.
  • the UE selects an index of measurement bandwidth within the NR carrier, the index of measurement bandwidth identifying a selected bandwidth within the NR carrier.
  • the UE performs the frequency measurement on the selected bandwidth.
  • the UE reports results of the frequency measurement to the RAN node.
  • NR new radio
  • FIG. 6 illustrates an architecture of a system 600 of a network in accordance with some embodiments.
  • the system 600 is shown to include a user equipment (UE) 601 and a UE 602.
  • the UEs 601 and 602 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks), but may also comprise any mobile or non-mobile computing device, such as Personal Data Assistants (PDAs), pagers, laptop computers, desktop computers, wireless handsets, or any computing device including a wireless communications interface.
  • PDAs Personal Data Assistants
  • any of the UEs 601 and 602 can comprise an Internet of Things (IoT) UE, which can comprise a network access layer designed for low-power IoT applications utilizing short-lived UE connections.
  • An IoT 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 IoT networks.
  • M2M or MTC exchange of data may be a machine-initiated exchange of data.
  • An IoT network describes interconnecting IoT UEs, which may include uniquely identifiable embedded computing devices (within the Internet infrastructure), with short-lived
  • the IoT UEs may execute background applications (e.g., keep-alive messages, status updates, etc.) to facilitate the connections of the IoT network.
  • the UEs 601 and 602 may be configured to connect, e.g., communicatively couple, with a radio access network (RAN) 610.
  • the RAN 610 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 601 and 602 utilize connections 603 and 604, respectively, each of which comprises a physical communications interface or layer (discussed in further detail below); in this example, the connections 603 and 604 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 3 GPP 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 601 and 602 may further directly exchange
  • the ProSe interface 605 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 (PS SCH), a Physical Sidelink Discovery Channel (PSDCH), and a Physical Sidelink
  • PSCCH Physical Sidelink Control Channel
  • PS SCH Physical Sidelink Shared Channel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Broadcast Channel
  • the UE 602 is shown to be configured to access an access point (AP) 606 via connection 607.
  • the connection 607 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.11 protocol, wherein the AP 606 would comprise a wireless fidelity (WiFi®) router.
  • WiFi® wireless fidelity
  • the AP 606 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 610 can include one or more access nodes that enable the connections 603 and 604. These access nodes (ANs) can be referred to as base stations (BSs), NodeBs, evolved NodeBs (eNBs), next Generation NodeBs (gNB), RAN nodes, and so forth, and can comprise ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell).
  • BSs base stations
  • eNBs evolved NodeBs
  • gNB next Generation NodeBs
  • RAN nodes and so forth, and can comprise ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell).
  • the RAN 610 may include one or more RAN nodes for providing macrocells, e.g., macro RAN node 611, 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 612.
  • RAN nodes 611 and 612 can terminate the air interface protocol and can be the first point of contact for the UEs 601 and 602.
  • any of the RAN nodes 611 and 612 can fulfill various logical functions for the RAN 610 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
  • the UEs 601 and 602 can be configured to communicate using Orthogonal Frequency-Division Multiplexing (OFDM) communication signals with each other or with any of the RAN nodes 611 and 612 over a multicarrier communication channel in accordance various communication techniques, such as, but not limited to, an Orthogonal Frequency-Division Multiple Access (OFDMA) communication technique (e.g., for downlink communications) or a Single Carrier Frequency Division Multiple Access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink communications), although the scope of the embodiments is not limited in this respect.
  • OFDM signals can comprise a plurality of orthogonal subcarriers.
  • a downlink resource grid can be used for downlink
  • the grid can be a time-frequency grid, called a resource grid or time-frequency resource grid, which is the physical resource in the downlink in each slot.
  • a time-frequency plane representation is a common practice for OFDM systems, which makes it intuitive for radio resource allocation.
  • Each column and each row of the resource grid corresponds to one OFDM symbol and one OFDM subcarrier, respectively.
  • the duration of the resource grid in the time domain corresponds to one slot in a radio frame.
  • the smallest time-frequency unit in a resource grid is denoted as a resource element.
  • Each resource grid comprises a number of resource blocks, which describe the mapping of certain physical channels to resource elements.
  • Each resource block comprises a collection of resource elements; in the frequency domain, this may represent the smallest quantity of resources that currently can be allocated. There are several different physical downlink channels that are conveyed using such resource blocks.
  • the physical downlink shared channel may carry user data and higher-layer signaling to the UEs 601 and 602.
  • the physical downlink control channel (PDCCH) may carry information about the transport format and resource allocations related to the PDSCH channel, among other things. It may also inform the UEs 601 and 602 about the transport format, resource allocation, and H-ARQ (Hybrid Automatic Repeat Request) information related to the uplink shared channel.
  • downlink scheduling (assigning control and shared channel resource blocks to the UE 602 within a cell) may be performed at any of the RAN nodes 611 and 612 based on channel quality information fed back from any of the UEs 601 and 602.
  • the downlink resource assignment information may be sent on the PDCCH used for (e.g., assigned to) each of the UEs 601 and 602.
  • the PDCCH may use control channel elements (CCEs) to convey the control information.
  • CCEs control channel elements
  • the PDCCH complex-valued symbols may first be organized into quadruplets, which may then be permuted using a sub- block interleaver for rate matching.
  • Each PDCCH may be transmitted using one or more of these CCEs, where each CCE may correspond to nine sets of four physical resource elements known as resource element groups (REGs).
  • RAGs resource element groups
  • QPSK Quadrature Phase Shift Keying
  • the PDCCH can be transmitted using one or more CCEs, depending on the size of the downlink control information (DCI) and the channel condition.
  • DCI downlink control information
  • There can be four or more different PDCCH formats defined in LTE with different numbers of CCEs (e.g., aggregation level, L l, 2, 4, or 8).
  • Some embodiments may use concepts for resource allocation for control channel information that are an extension of the above-described concepts.
  • some embodiments may utilize an enhanced physical downlink control channel (EPDCCH) that uses PDSCH resources for control information transmission.
  • the EPDCCH may be transmitted using one or more enhanced the control channel elements (ECCEs). Similar to above, each ECCE may correspond to nine sets of four physical resource elements known as enhanced resource element groups (EREGs). An ECCE may have other numbers of EREGs in some situations.
  • EPCCH enhanced physical downlink control channel
  • ECCEs enhanced the control channel elements
  • each ECCE may correspond to nine sets of four physical resource elements known as enhanced resource element groups (EREGs).
  • EREGs enhanced resource element groups
  • An ECCE may have other numbers of EREGs in some situations.
  • the RAN 610 is shown to be communicatively coupled to a core network (CN) 620 — via an SI interface 613.
  • the CN 620 may be an evolved packet core (EPC) network, a NextGen Packet Core (NPC) network, or some other type of CN.
  • EPC evolved packet core
  • NPC NextGen Packet Core
  • the SI interface 613 is split into two parts: the Sl-U interface 614, which carries traffic data between the RAN nodes 611 and 612 and a serving gateway (S-GW) 622, and an SI -mobility management entity (MME) interface 615, which is a signaling interface between the RAN nodes 611 and 612 and MMEs 621.
  • S-GW serving gateway
  • MME SI -mobility management entity
  • the CN 620 comprises the MMEs 621, the S-GW 622, a Packet Data Network (PDN) Gateway (P-GW) 623, and a home subscriber server (HSS) 624.
  • the MMEs 621 may be similar in function to the control plane of legacy Serving General Packet Radio Service (GPRS) Support Nodes (SGSN).
  • GPRS General Packet Radio Service
  • the MMEs 621 may manage mobility aspects in access such as gateway selection and tracking area list management.
  • the HSS 624 may comprise a database for network users, including subscription-related information to support the network entities' handling of communication sessions.
  • the CN 620 may comprise one or several HSSs 624, depending on the number of mobile subscribers, on the capacity of the equipment, on the organization of the network, etc.
  • the HSS 624 can provide support for routing/roaming, authentication, authorization,
  • the S-GW 622 may terminate the SI interface 613 towards the RAN 610, and routes data packets between the RAN 610 and the CN 620.
  • the S-GW 622 may be a local mobility anchor point for inter-RAN node handovers and also may provide an anchor for inter-3GPP mobility. Other responsibilities may include lawful intercept, charging, and some policy enforcement.
  • the P-GW 623 may terminate an SGi interface toward a PDN.
  • the P-GW 623 may route data packets between the CN 620 (e.g., an EPC network) and external networks such as a network including the application server 630 (alternatively referred to as application function (AF)) via an Internet Protocol (IP) interface 625.
  • an application server 630 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.).
  • the P-GW 623 is shown to be communicatively coupled to an application server 630 via an IP communications interface 625.
  • the application server 630 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 601 and 602 via the CN 620.
  • VoIP Voice-over-Internet Protocol
  • PTT sessions PTT sessions
  • group communication sessions social networking services, etc.
  • the P-GW 623 may further be a node for policy enforcement and charging data collection.
  • a Policy and Charging Enforcement Function (PCRF) 626 is the policy and charging control element of the CN 620.
  • PCRF Policy and Charging Enforcement Function
  • HPLMN Home Public Land Mobile Network
  • IP-CAN Internet Protocol Connectivity Access Network
  • HPLMN Home Public Land Mobile Network
  • V-PCRF Visited PCRF
  • VPLMN Visited Public Land Mobile Network
  • the PCRF 626 may be communicatively coupled to the application server 630 via the P-GW 623.
  • the application server 630 may signal the PCRF 626 to indicate a new service flow and select the appropriate Quality of Service (QoS) and charging parameters.
  • the PCRF 626 may provision this rule into a Policy and Charging Enforcement Function (PCEF) (not shown) with the appropriate traffic flow template (TFT) and QoS class of identifier (QCI), which commences the QoS and charging as specified by the application server 630.
  • PCEF Policy and Charging Enforcement Function
  • TFT traffic flow template
  • QCI QoS class of identifier
  • FIG. 7 illustrates example components of a device 700 in accordance with some embodiments.
  • the device 700 may include application circuitry 702, baseband circuitry 704, Radio Frequency (RF) circuitry 706, front-end module (FEM) circuitry 708, one or more antennas 710, and power management circuitry (PMC) 712 coupled together at least as shown.
  • the components of the illustrated device 700 may be included in a UE or a RAN node.
  • the device 700 may include fewer elements (e.g., a RAN node may not utilize application circuitry 702, and instead include a processor/controller to process IP data received from an EPC).
  • the device 700 may include additional elements such as, for example, memory/storage, display, camera, sensor, or input/output (I/O) interface.
  • the components described below may be included in more than one device (e.g., said circuitries may be separately included in more than one device for Cloud-RAN (C-RAN) implementations).
  • C-RAN Cloud-RAN
  • the application circuitry 702 may include one or more application processors.
  • the application circuitry 702 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processor(s) may include any combination of general -purpose processors and dedicated processors (e.g., graphics processors, application processors, etc.).
  • the processors may be coupled with or may include
  • processors of application circuitry 702 may process IP data packets received from an EPC.
  • the baseband circuitry 704 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the baseband circuitry 704 may include one or more baseband processors or control logic to process baseband signals received from a receive signal path of the RF circuitry 706 and to generate baseband signals for a transmit signal path of the RF circuitry 706.
  • Baseband processing circuity 704 may interface with the application circuitry 702 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 706.
  • the baseband circuitry 704 may include a third generation (3G) baseband processor 704 A, a fourth generation (4G) baseband processor 704B, a fifth generation (5G) baseband processor 704C, or other baseband processor(s) 704D for other existing generations, generations in development or to be developed in the future (e.g., second generation (2G), sixth generation (6G), etc.).
  • the baseband circuitry 704 e.g., one or more of baseband processors 704A-D
  • baseband processors 704 A-D may be included in modules stored in the memory 704G and executed via a Central Processing Unit (CPU) 704E.
  • the radio control functions may include, but are not limited to, signal modulation/demodulation,
  • modulation/demodulation circuitry of the baseband circuitry 704 may include Fast-Fourier Transform (FFT), precoding, or constellation mapping/demapping functionality.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 704 may include convolution, tail-biting convolution, turbo, Viterbi, or Low Density Parity Check (LDPC) encoder/decoder functionality.
  • LDPC Low Density Parity Check
  • encoder/decoder functionality are not limited to these examples and may include other suitable functionality in other embodiments.
  • the baseband circuitry 704 may include one or more audio digital signal processor(s) (DSP) 704F.
  • the audio DSP(s) 704F may be include elements for compression/decompression and echo cancellation and may include other suitable processing elements in other embodiments.
  • Components of the baseband circuitry may be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some embodiments.
  • some or all of the constituent components of the baseband circuitry 704 and the application circuitry 702 may be implemented together such as, for example, on a system on a chip (SOC).
  • SOC system on a chip
  • the baseband circuitry 704 may provide for
  • the baseband circuitry 704 may support communication with an evolved universal terrestrial radio access network (EUTRAN) or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), or a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • Embodiments in which the baseband circuitry 704 is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.
  • RF circuitry 706 may enable communication with wireless networks
  • the RF circuitry 706 may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • the RF circuitry 706 may include a receive signal path which may include circuitry to down-convert RF signals received from the FEM circuitry 708 and provide baseband signals to the baseband circuitry 704.
  • RF circuitry 706 may also include a transmit signal path which may include circuitry to up-convert baseband signals provided by the baseband circuitry 704 and provide RF output signals to the FEM circuitry 708 for transmission.
  • the receive signal path of the RF circuitry 706 may include mixer circuitry 706A, amplifier circuitry 706B and filter circuitry 706C. In some embodiments,
  • the transmit signal path of the RF circuitry 706 may include filter circuitry 706C and mixer circuitry 706 A.
  • RF circuitry 706 may also include synthesizer circuitry 706D for synthesizing a frequency for use by the mixer circuitry 706A of the receive signal path and the transmit signal path.
  • the mixer circuitry 706A of the receive signal path may be configured to down-convert RF signals received from the FEM circuitry 708 based on the synthesized frequency provided by synthesizer circuitry 706D.
  • the amplifier circuitry 706B may be configured to amplify the down-converted signals and the filter circuitry 706C may be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals.
  • Output baseband signals may be provided to the baseband circuitry 704 for further processing.
  • the output baseband signals may be zero-frequency baseband signals, although this is not a requirement.
  • the mixer circuitry 706A of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 706A of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 706D to generate RF output signals for the FEM circuitry 708.
  • the baseband signals may be provided by the baseband circuitry 704 and may be filtered by the filter circuitry 706C.
  • the mixer circuitry 706A of the receive signal path and the mixer circuitry 706A of the transmit signal path may include two or more mixers and may be arranged for quadrature downconversion and upconversion, respectively.
  • the mixer circuitry 706A of the receive signal path and the mixer circuitry 706A of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection).
  • the mixer circuitry 706A of the receive signal path and the mixer circuitry 706A may be arranged for direct downconversion and direct upconversion, respectively.
  • the mixer circuitry 706A of the receive signal path and the mixer circuitry 706A of the transmit signal path may be configured for super-heterodyne operation.
  • the output baseband signals and the input baseband signals may be analog baseband signals, although the scope of the embodiments is not limited in this respect.
  • the output baseband signals and the input baseband signals may be digital baseband signals.
  • the RF circuitry 706 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and the baseband circuitry 704 may include a digital baseband interface to communicate with the RF circuitry 706.
  • ADC analog-to-digital converter
  • DAC digital-to-analog converter
  • a separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the embodiments is not limited in this respect.
  • the synthesizer circuitry 706D may be a fractional-N synthesizer or a fractional N/N+l synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable.
  • synthesizer circuitry 706D may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.
  • the synthesizer circuitry 706D may be configured to synthesize an output frequency for use by the mixer circuitry 706A of the RF circuitry 706 based on a frequency input and a divider control input.
  • the synthesizer circuitry 706D may be a fractional N/N+l synthesizer.
  • frequency input may be provided by a voltage controlled oscillator (VCO), although that is not a requirement.
  • VCO voltage controlled oscillator
  • Divider control input may be provided by either the baseband circuitry 704 or the application circuitry 702 (such as an applications processor) depending on the desired output frequency.
  • a divider control input (e.g., N) may be determined from a look-up table based on a channel indicated by the application circuitry 702.
  • Synthesizer circuitry 706D of the RF circuitry 706 may include a divider, a delay- locked loop (DLL), a multiplexer and a phase accumulator.
  • the divider may be a dual modulus divider (DMD) and the phase accumulator may be a digital phase accumulator (DP A).
  • the DMD may be configured to divide the input signal by either N or N+l (e.g., based on a carry out) to provide a fractional division ratio.
  • the DLL may include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip-flop.
  • the synthesizer circuitry 706D may be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other.
  • the output frequency may be a LO frequency (fLO).
  • the RF circuitry 706 may include an IQ/polar converter.
  • FEM circuitry 708 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 710, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 706 for further processing.
  • the FEM circuitry 708 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF circuitry 706 for transmission by one or more of the one or more antennas 710.
  • the amplification through the transmit or receive signal paths may be done solely in the RF circuitry 706, solely in the FEM circuitry 708, or in both the RF circuitry 706 and the FEM circuitry 708.
  • the FEM circuitry 708 may include a TX/RX switch to switch between transmit mode and receive mode operation.
  • the FEM circuitry 708 may include a receive signal path and a transmit signal path.
  • the receive signal path of the FEM circuitry 708 may include an LNA to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 706).
  • the transmit signal path of the FEM circuitry 708 may include a power amplifier (PA) to amplify input RF signals (e.g., provided by the RF circuitry 706), and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas 710).
  • PA power amplifier
  • the PMC 712 may manage power provided to the baseband circuitry 704.
  • the PMC 712 may control power-source selection, voltage scaling, battery charging, or DC-to-DC conversion.
  • the PMC 712 may often be included when the device 700 is capable of being powered by a battery, for example, when the device 700 is included in a UE.
  • the PMC 712 may increase the power conversion efficiency while providing desirable implementation size and heat dissipation characteristics.
  • FIG. 7 shows the PMC 712 coupled only with the baseband circuitry 704. However, in other embodiments, the PMC 712 may be additionally or alternatively coupled with, and perform similar power management operations for, other components such as, but not limited to, the application circuitry 702, the RF circuitry 706, or the FEM circuitry 708.
  • the PMC 712 may control, or otherwise be part of, various power saving mechanisms of the device 700. For example, if the device 700 is in an
  • RRC Connected state where it is still connected to the RAN node as it expects to receive traffic shortly, then it may enter a state known as Discontinuous Reception Mode (DRX) after a period of inactivity. During this state, the device 700 may power down for brief intervals of time and thus save power.
  • DRX Discontinuous Reception Mode
  • the device 700 may transition off to an RRC Idle state, where it disconnects from the network and does not perform operations such as channel quality feedback, handover, etc.
  • the device 700 goes into a very low power state and it performs paging where again it periodically wakes up to listen to the network and then powers down again.
  • the device 700 may not receive data in this state, and in order to receive data, it transitions back to an RRC Connected state.
  • An additional power saving mode may allow a device to be unavailable to the network for periods longer than a paging interval (ranging from seconds to a few hours). During this time, the device is totally unreachable to the network and may power down completely. Any data sent during this time incurs a large delay and it is assumed the delay is acceptable.
  • Processors of the application circuitry 702 and processors of the baseband circuitry 704 may be used to execute elements of one or more instances of a protocol stack.
  • processors of the baseband circuitry 704 alone or in combination, may be used to execute Layer 3, Layer 2, or Layer 1 functionality, while processors of the application circuitry 702 may utilize data (e.g., packet data) received from these layers and further execute Layer 4 functionality (e.g., transmission communication protocol (TCP) and user datagram protocol (UDP) layers).
  • Layer 3 may comprise a radio resource control (RRC) layer, described in further detail below.
  • RRC radio resource control
  • Layer 2 may comprise a medium access control (MAC) layer, a radio link control (RLC) layer, and a packet data convergence protocol (PDCP) layer, described in further detail below.
  • Layer 1 may comprise a physical (PHY) layer of a UE/RAN node, described in further detail below.
  • FIG. 8 illustrates example interfaces of baseband circuitry in accordance with some embodiments.
  • the baseband circuitry 704 of FIG. 7 may comprise processors 704A-704E and a memory 704G utilized by said processors.
  • Each of the processors 704A-704E may include a memory interface, 804A-804E, respectively, to send/receive data to/from the memory 704G.
  • the baseband circuitry 704 may further include one or more interfaces to
  • a memory interface 812 e.g., an interface to send/receive data to/from memory external to the baseband circuitry 704
  • an application circuitry interface 814 e.g., an interface to send/receive data to/from the application circuitry 702 of FIG. 7
  • an RF circuitry interface 816 e.g., an interface to send/receive data to/from RF circuitry 706 of FIG.
  • a wireless hardware connectivity interface 818 e.g., an interface to send/receive data to/from Near Field Communication (NFC) components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components
  • a power management interface 820 e.g., an interface to send/receive power or control signals to/from the PMC 712.
  • FIG. 9 is an illustration of a control plane protocol stack in accordance with some embodiments.
  • a control plane 900 is shown as a communications protocol stack between the UE 601 (or alternatively, the UE 602), the RAN node 611 (or alternatively, the RAN node 612), and the MME 621.
  • a PHY layer 901 may transmit or receive information used by the MAC layer 902 over one or more air interfaces.
  • the PHY layer 901 may further perform link adaptation or adaptive modulation and coding (AMC), power control, cell search (e.g., for initial synchronization and handover purposes), and other measurements used by higher layers, such as an RRC layer 905.
  • the PHY layer 901 may still further perform error detection on the transport channels, forward error correction (FEC) coding/decoding of the transport channels, modulation/demodulation of physical channels, interleaving, rate matching, mapping onto physical channels, and Multiple Input Multiple Output (MIMO) antenna processing.
  • FEC forward error correction
  • MIMO Multiple Input Multiple Output
  • the MAC layer 902 may perform mapping between logical channels and transport channels, multiplexing of MAC service data units (SDUs) from one or more logical channels onto transport blocks (TB) to be delivered to PHY via transport channels, de-multiplexing MAC SDUs to one or more logical channels from transport blocks (TB) delivered from the PHY via transport channels, multiplexing MAC SDUs onto TBs, scheduling information reporting, error correction through hybrid automatic repeat request (HARQ), and logical channel prioritization.
  • An RLC layer 903 may operate in a plurality of modes of operation, including:
  • the RLC layer 903 may execute transfer of upper layer protocol data units (PDUs), error correction through automatic repeat request (ARQ) for AM data transfers, and concatenation, segmentation and reassembly of RLC SDUs for UM and AM data transfers.
  • the RLC layer 903 may also execute re-segmentation of RLC data PDUs for AM data transfers, reorder RLC data PDUs for UM and AM data transfers, detect duplicate data for UM and AM data transfers, discard RLC SDUs for UM and AM data transfers, detect protocol errors for AM data transfers, and perform RLC re-establishment.
  • a PDCP layer 904 may execute header compression and decompression of IP data, maintain PDCP Sequence Numbers (SNs), perform in-sequence delivery of upper layer PDUs at re-establishment of lower layers, eliminate duplicates of lower layer SDUs at re- establishment of lower layers for radio bearers mapped on RLC AM, cipher and decipher control plane data, perform integrity protection and integrity verification of control plane data, control timer-based discard of data, and perform security operations (e.g., ciphering, deciphering, integrity protection, integrity verification, etc.).
  • SNs PDCP Sequence Numbers
  • the main services and functions of the RRC layer 905 may include broadcast of system information (e.g., included in Master Information Blocks (MIBs) or System
  • SIBs Information Blocks related to the non-access stratum (NAS)), broadcast of system information related to the access stratum (AS), paging, establishment, maintenance and release of an RRC connection between the UE and E-UTRAN (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), establishment, configuration, maintenance and release of point-to-point radio bearers, security functions including key management, inter radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting.
  • Said MIBs and SIBs may comprise one or more information elements (IEs), which may each comprise individual data fields or data structures.
  • IEs information elements
  • the UE 601 and the RAN node 611 may utilize a Uu interface (e.g., an LTE-Uu interface) to exchange control plane data via a protocol stack comprising the PHY layer 901, the MAC layer 902, the RLC layer 903, the PDCP layer 904, and the RRC layer 905.
  • a Uu interface e.g., an LTE-Uu interface
  • the non-access stratum (NAS) protocols 906 form the highest stratum of the control plane between the UE 601 and the MME 621.
  • the NAS protocols 906 support the mobility of the UE 601 and the session management procedures to establish and maintain IP connectivity between the UE 601 and the P-GW 623.
  • the SI Application Protocol (Sl-AP) layer 915 may support the functions of the SI interface and comprise Elementary Procedures (EPs).
  • An EP is a unit of interaction between the RAN node 611 and the CN 620.
  • the Sl-AP layer services may comprise two groups: UE-associated services and non UE-associated services. These services perform functions including, but not limited to: E-UTRAN Radio Access Bearer (E-RAB) management, UE capability indication, mobility, NAS signaling transport, RAN Information Management (RIM), and configuration transfer.
  • E-RAB E-UTRAN Radio Access Bearer
  • RIM Radio Information Management
  • the Stream Control Transmission Protocol (SCTP) layer (alternatively referred to as the stream control transmission protocol/internet protocol (SCTP/IP) layer) 914 may ensure reliable delivery of signaling messages between the RAN node 611 and the MME 621 based, in part, on the IP protocol, supported by an IP layer 913.
  • An L2 layer 912 and an LI layer 911 may refer to communication links (e.g., wired or wireless) used by the RAN node and the MME to exchange information.
  • the RAN node 611 and the MME 621 may utilize an SI -MME interface to exchange control plane data via a protocol stack comprising the LI layer 911, the L2 layer 912, the IP layer 913, the SCTP layer 914, and the Sl-AP layer 915.
  • FIG. 10 is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein.
  • FIG. 10 shows a diagrammatic representation of hardware resources 1000 including one or more processors (or processor cores) 1010, one or more memory/storage devices 1020, and one or more communication resources 1030, each of which may be communicatively coupled via a bus 1040.
  • node virtualization e.g., NFV
  • a hypervisor 1002 may be executed to provide an execution environment for one or more network slices/sub-slices to utilize the hardware resources 1000.
  • the processors 1010 may include, for example, a processor 1012 and a processor 1014.
  • CPU central processing unit
  • RISC reduced instruction set computing
  • CISC complex instruction set computing
  • GPU graphics processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • RFIC radio-frequency integrated circuit
  • the memory/storage devices 1020 may include main memory, disk storage, or any suitable combination thereof.
  • the memory/storage devices 1020 may include, but are not limited to any type of volatile or non-volatile memory such as dynamic random access memory (DRAM), static random-access memory (SRAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), Flash memory, solid-state storage, etc.
  • DRAM dynamic random access memory
  • SRAM static random-access memory
  • EPROM erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • Flash memory solid-state storage, etc.
  • the communication resources 1030 may include interconnection or network interface components or other suitable devices to communicate with one or more peripheral devices 1004 or one or more databases 1006 via a network 1008.
  • the communication resources 1030 may include wired communication components (e.g., for coupling via a Universal Serial Bus (USB)), cellular communication components, NFC components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components.
  • wired communication components e.g., for coupling via a Universal Serial Bus (USB)
  • cellular communication components e.g., for coupling via a Universal Serial Bus (USB)
  • NFC components e.g., NFC components
  • Bluetooth® components e.g., Bluetooth® Low Energy
  • Wi-Fi® components e.g., Wi-Fi® components
  • Instructions 1050 may comprise software, a program, an application, an applet, an app, or other executable code for causing at least any of the processors 1010 to perform any one or more of the methodologies discussed herein.
  • the instructions 1050 may reside, completely or partially, within at least one of the processors 1010 (e.g., within the processor's cache memory), the memory/storage devices 1020, or any suitable combination thereof.
  • any portion of the instructions 1050 may be transferred to the hardware resources 1000 from any combination of the peripheral devices 1004 or the databases 1006. Accordingly, the memory of processors 1010, the memory/storage devices 1020, the peripheral devices 1004, and the databases 1006 are examples of computer-readable and machine-readable media.
  • Example 1 is an apparatus of a user equipment (UE) comprising a memory interface and a processor.
  • the memory interface configured to send or retrieve an index of measurement bandwidth.
  • the processor configured to: select the index of measurement bandwidth within a carrier, the index of measurement bandwidth identifying a minimum measurement bandwidth within the carrier; perform an inter-frequency measurement based on the index of measurement bandwidth; and report results of the inter-frequency
  • Example 2 is the apparatus of Example 1, wherein the inter-frequency measurement is cell specific reference signal received power (RSRP).
  • RSRP cell specific reference signal received power
  • Example 3 is the apparatus of Example 1, wherein the index of measurement bandwidth is selected randomly within a whole system bandwidth fixed when a reference signal is transmitted with beamforming.
  • Example 4 is the apparatus of Example 1, wherein the inter-frequency measurement is beam specific reference signal received power (RSRP).
  • RSRP beam specific reference signal received power
  • Example 5 is the apparatus of any of Examples 1-4, wherein the index of measurement bandwidth is set by random frequency hopping.
  • Example 6 is the apparatus of any of Examples 1-4, wherein the processor is a baseband processor.
  • Example 7 is the apparatus of Example 1, wherein the index of measurement bandwidth is fixed when a reference signal is within an omnidirectional transmission when the system bandwidth is smaller than 20MHz.
  • Example 8 is the apparatus of Example 1, wherein the index of measurement bandwidth is randomly selected when a reference signal is within an omnidirectional transmission when the system bandwidth is larger than 20MHz.
  • Example 9 is a system for performing a frequency measurement using an indexed minimum measurement bandwidth, the system comprising a cellular interface, a memory interface, and a processor.
  • the cellular interface is configured to process a flexible channel bandwidth of a new radio (NR) carrier provided by a RAN node.
  • the memory interface is configured to send or retrieve an index of measurement bandwidth.
  • the processor is coupled to the cellular interface and the memory interface. The processor is configured to: select an index identifying a minimum measurement bandwidth within the NR carrier, the index identifying a bandwidth within the NR carrier; perform the frequency measurement of the identified bandwidth; and report results of the frequency measurement to the RAN node.
  • NR new radio
  • Example 10 is the system of Example 9, wherein the processor is configured to process NR carrier numerology from the RAN node when in idle mode and when in connected mode.
  • Example 1 1 is the system of Example 9, wherein to select the index further comprises using a random frequency hopping selection of the index.
  • Example 12 is the system of Example 9, wherein the frequency measurement is cell specific reference signal received power (RSRP).
  • RSRP cell specific reference signal received power
  • Example 13 is the system of Example 9, wherein the frequency measurement is beam specific reference signal received power (RSRP).
  • Example 14 is the system of any of Examples 9-12, wherein the processor is a baseband processor.
  • Example 15 is a method for performing a frequency measurement using an indexed minimum measurement bandwidth, the method comprising: process new radio (NR) carrier numerology of a NR carrier provided by a RAN node; select an index of measurement bandwidth within the NR carrier, the index of measurement bandwidth identifying a selected bandwidth within the NR carrier; perform the frequency measurement on the selected bandwidth; and report results of the frequency measurement to the RAN node.
  • NR new radio
  • Example 16 is the method of Example 15, wherein the selected bandwidth is a minimum measurement bandwidth.
  • Example 17 is the method of Example 15, wherein the frequency measurement is cell specific reference signal received power (RSRP) or beam specific RSRP.
  • RSRP cell specific reference signal received power
  • Example 18 is the method of Example 15, wherein the index of measurement bandwidth is a physical resource block (RB) index.
  • RB physical resource block
  • Example 19 is the method of Example 18, wherein the RB index identifies a set of RBs associated with the RB index that forms a minimum measurement bandwidth.
  • Example 20 is an apparatus comprising means to perform a method as Exampleed in any of Examples 15-19.
  • Example 21 is a machine readable medium including code, when executed, to cause a machine to perform the method of any one of Examples 15-19.
  • Example 22 is a computer program product comprising a computer-readable storage medium that stores instructions for execution by a processor to perform operations of a user equipment (UE), the operations, when executed by the processor, to perform a method, the method comprising: processing a new radio (NR) carrier numerology of a NR carrier provided by a RAN node; selecting an index of measurement bandwidth within the NR carrier, the index of measurement bandwidth identifying a selected bandwidth within the NR carrier; performing the frequency measurement on the selected bandwidth; and reporting results of the frequency measurement to the RAN node.
  • NR new radio
  • Example 23 is the method of Example 22, wherein the selected bandwidth is a minimum measurement bandwidth.
  • Example 24 is an apparatus of a user equipment (UE) comprising: means for processing new radio (NR) carrier numerology of a NR carrier provided by a RAN node; means for selecting an index of measurement bandwidth within the NR carrier, the index of measurement bandwidth identifying a selected bandwidth within the NR carrier; means for performing the frequency measurement on the selected bandwidth; and means for reporting results of the frequency measurement to the RAN node.
  • NR new radio
  • Additional Example 1 is a method of NR measurement in NR, by which the minimum measurement bandwidth for the measurement carriers shall be specified.
  • Additional Example 2 is a method of claim 1, wherein the index of measurement bandwidth can be fixed or changed.
  • Additional Example 3 is a method of Additional Example 2, wherein the index of measurement bandwidth can be fixed if the measurement reference signal is transmitted in an omindirectional fashion.
  • Additional Example 4 is a method of Additional Example 2, wherein the index of measurement bandwidth can be changed if the measurement reference signal is transmitted with beamforming.
  • Additional Example 5 is a method of Additional Example 4, wherein the index of measurement bandwidth can be changed randomly in the frequency.
  • Additional Example 6 is a method of Additional Example 5, wherein the random selection of frequency RB index can depend on the predefined hopping pattern.
  • Embodiments and implementations of the systems and methods described herein may include various operations, which may be embodied in machine-executable instructions to be executed by a computer system.
  • a computer system may include one or more general- purpose or special-purpose computers (or other electronic devices).
  • the computer system may include hardware components that include specific logic for performing the operations or may include a combination of hardware, software, and/or firmware.
  • Suitable networks for configuration and/or use as described herein include one or more local area networks, wide area networks, metropolitan area networks, and/or Internet or IP networks, such as the World Wide Web, a private Internet, a secure Internet, a value-added network, a virtual private network, an extranet, an intranet, or even stand-alone machines which communicate with other machines by physical transport of media.
  • a suitable network may be formed from parts or entireties of two or more other networks, including networks using disparate hardware and network communication technologies.
  • One suitable network includes a server and one or more clients; other suitable networks may contain other combinations of servers, clients, and/or peer-to-peer nodes, and a given computer system may function both as a client and as a server.
  • Each network includes at least two computers or computer systems, such as the server and/or clients.
  • a computer system may include a workstation, laptop computer, disconnectable mobile computer, server, mainframe, cluster, so-called “network computer” or "thin client,” tablet, smart phone, personal digital assistant or other hand-held computing device, "smart” consumer electronics device or appliance, medical device, or a combination thereof.
  • Suitable networks may include communications or networking software, such as the software available from Novell®, Microsoft®, and other vendors, and may operate using TCP/IP, SPX, IPX, and other protocols over twisted pair, coaxial, or optical fiber cables, telephone lines, radio waves, satellites, microwave relays, modulated AC power lines, physical media transfer, and/or other data transmission "wires" known to those of skill in the art.
  • the network may encompass smaller networks and/or be connectable to other networks through a gateway or similar mechanism.
  • Various techniques, or certain aspects or portions thereof, may take the form of program code (i.e., instructions) embodied in tangible media, such as floppy diskettes, CD- ROMs, hard drives, magnetic or optical cards, solid-state memory devices, a nontransitory computer-readable storage medium, or any other machine-readable storage medium wherein, when the program code is loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the various techniques.
  • the computing device may include a processor, a storage medium readable by the processor (including volatile and nonvolatile memory and/or storage elements), at least one input device, and at least one output device.
  • the volatile and nonvolatile memory and/or storage elements may be a RAM, an EPROM, a flash drive, an optical drive, a magnetic hard drive, or other medium for storing electronic data.
  • the eNB, RAN node (or other base station) and UE (or other mobile station) may also include a transceiver component, a counter component, a processing component, and/or a clock component or timer component.
  • One or more programs that may implement or utilize the various techniques described herein may use an application programming interface (API), reusable controls, and the like. Such programs may be implemented in a high-level procedural or an object-oriented programming language to communicate with a computer system. However, the program(s) may be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language, and combined with hardware implementations.
  • Each computer system includes one or more processors and/or memory; computer systems may also include various input devices and/or output devices.
  • the processor may include a general purpose device, such as an Intel®, AMD®, or other "off-the-shelf microprocessor.
  • the processor may include a special purpose processing device, such as ASIC, SoC, SiP, FPGA, PAL, PLA, FPLA, PLD, or other customized or programmable device.
  • the memory may include static RAM, dynamic RAM, flash memory, one or more flip-flops, ROM, CD-ROM, DVD, disk, tape, or magnetic, optical, or other computer storage medium.
  • the input device(s) may include a keyboard, mouse, touch screen, light pen, tablet, microphone, sensor, or other hardware with accompanying firmware and/or software.
  • the output device(s) may include a monitor or other display, printer, speech or text synthesizer, switch, signal line, or other hardware with accompanying firmware and/or software.
  • a component may be implemented as a hardware circuit comprising custom very large scale integration (VLSI) circuits or gate arrays, or off-the-shelf semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very large scale integration
  • a component may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, or the like.
  • Components may also be implemented in software for execution by various types of processors.
  • An identified component of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions, which may, for instance, be organized as an object, a procedure, or a function. Nevertheless, the executables of an identified component need not be physically located together, but may comprise disparate instructions stored in different locations that, when joined logically together, comprise the component and achieve the stated purpose for the component.
  • a component of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices.
  • operational data may be identified and illustrated herein within components, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
  • the components may be passive or active, including agents operable to perform desired functions.
  • a software module or component may include any type of computer instruction or computer-executable code located within a memory device.
  • a software module may, for instance, include one or more physical or logical blocks of computer instructions, which may be organized as a routine, program, object, component, data structure, etc., that perform one or more tasks or implement particular data types. It is appreciated that a software module may be implemented in hardware and/or firmware instead of or in addition to software.
  • One or more of the functional modules described herein may be separated into sub-modules and/or combined into a single or smaller number of modules.
  • a particular software module may include disparate instructions stored in different locations of a memory device, different memory devices, or different computers, which together implement the described functionality of the module.
  • a module may include a single instruction or many instructions, and may be distributed over several different code segments, among different programs, and across several memory devices.
  • Some embodiments may be practiced in a distributed computing environment where tasks are performed by a remote processing device linked through a communications network.
  • software modules may be located in local and/or remote memory storage devices.
  • data being tied or rendered together in a database record may be resident in the same memory device, or across several memory devices, and may be linked together in fields of a record in a database across a network.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Un équipement utilisateur (UE) sélectionne (504) un indice de bande passante de mesure à l'intérieur d'une porteuse de nouvelle radio (NR) et effectue des tests de fréquence. Comme la NR présente une largeur de bande de canal flexible (par exemple, de 1,44 MHz à plus de 80 MHz), une unique bande passante de mesure minimale centrale peut ne pas être suffisante pour une estimation de qualité. Au lieu de cela, l'UE peut sélectionner un indice de bande passante de mesure (tel que dans un modèle de saut de fréquence aléatoire) pour des tests interfréquences (506) (par exemple, une puissance reçue de signal de référence (RSRP) spécifique à une cellule ou une RSRP spécifique au faisceau). Dans certains modes de réalisation, le réseau envoie la numérologie à l'UE lorsqu'il se trouve à la fois dans un mode inactif et un mode connecté, de sorte que l'UE puisse effectuer les tests de fréquence.
PCT/US2017/053281 2016-09-29 2017-09-25 Systèmes, procédés et dispositifs pour sélectionner une largeur de bande de mesure WO2018063997A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112243571A (zh) * 2018-06-11 2021-01-19 瑞典爱立信有限公司 用于支持不同的带宽和子载波间隔组合的蜂窝通信系统的可伸缩测试模型
WO2021052462A1 (fr) * 2019-09-20 2021-03-25 华为技术有限公司 Procédé et appareil de traitement de données
CN112640330A (zh) * 2018-08-10 2021-04-09 苹果公司 用于测试用户装备性能要求的下行链路信号和噪声控制

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010126419A1 (fr) * 2009-04-27 2010-11-04 Telefonaktiebolaget L M Ericsson (Publ) Procédés et configurations dans un système de communication sans fil
US20140043989A1 (en) * 2012-08-10 2014-02-13 Nokia Corporation Reduced user equipment impact from performing wider bandwidth measurements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010126419A1 (fr) * 2009-04-27 2010-11-04 Telefonaktiebolaget L M Ericsson (Publ) Procédés et configurations dans un système de communication sans fil
US20140043989A1 (en) * 2012-08-10 2014-02-13 Nokia Corporation Reduced user equipment impact from performing wider bandwidth measurements

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
INTEL CORPORATION: "Considerations on the NR measurement requirements", vol. RAN WG4, no. Athens, Greece; 20170213 - 20170217, 12 February 2017 (2017-02-12), XP051213713, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN4/Docs/> [retrieved on 20170212] *
INTEL CORPORATION: "Considerations on the wider measurement bandwidth for NR RRM", vol. RAN WG4, no. Reno, Nevada, USA; 20161114 - 20161118, 7 November 2016 (2016-11-07), XP051195232, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG4_Radio/TSGR4_81/Docs/> [retrieved on 20161107] *
RENESAS MOBILE EUROPE LTD: "Further considerations on RSRQ measurement bandwidth", 3GPP DRAFT; R4-63AH-0130, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Oulu; 20120626 - 20120628, 20 June 2012 (2012-06-20), XP050614987 *
SAMSUNG: "Considerations on RSRQ measurement bandwidth", 3GPP DRAFT; R4-63AH-0152 CONSIDERATIONS ON RSRQ MEASUREMENT BANDWIDTH, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Oulu; 20120626 - 20120628, 20 June 2012 (2012-06-20), XP050615001 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112243571A (zh) * 2018-06-11 2021-01-19 瑞典爱立信有限公司 用于支持不同的带宽和子载波间隔组合的蜂窝通信系统的可伸缩测试模型
US20210258801A1 (en) * 2018-06-11 2021-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Scalable test model for cellular communication system that supports different bandwidth and subcarrier spacing combinations
US11496909B2 (en) 2018-06-11 2022-11-08 Telefonaktiebolaget Lm Ericsson (Publ) Scalable test model for cellular communication system that supports different bandwidth and subcarrier spacing combinations
CN112243571B (zh) * 2018-06-11 2023-01-03 瑞典爱立信有限公司 用于支持不同的带宽和子载波间隔组合的蜂窝通信系统的可伸缩测试模型
CN112640330A (zh) * 2018-08-10 2021-04-09 苹果公司 用于测试用户装备性能要求的下行链路信号和噪声控制
CN112640330B (zh) * 2018-08-10 2022-05-13 苹果公司 用于测试用户装备性能要求的下行链路信号和噪声控制
WO2021052462A1 (fr) * 2019-09-20 2021-03-25 华为技术有限公司 Procédé et appareil de traitement de données

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