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WO2018064179A1 - Services v2x dans des réseaux cellulaires de prochaine génération - Google Patents

Services v2x dans des réseaux cellulaires de prochaine génération Download PDF

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Publication number
WO2018064179A1
WO2018064179A1 PCT/US2017/053745 US2017053745W WO2018064179A1 WO 2018064179 A1 WO2018064179 A1 WO 2018064179A1 US 2017053745 W US2017053745 W US 2017053745W WO 2018064179 A1 WO2018064179 A1 WO 2018064179A1
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WO
WIPO (PCT)
Prior art keywords
communication
data message
subset
transceiver
mobile
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2017/053745
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English (en)
Inventor
Alexey Vladimirovich Khoryaev
Mikhail Shilov
Sergey PANTELEEV
Sergey Sosnin
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Intel Corp
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Intel Corp
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Publication of WO2018064179A1 publication Critical patent/WO2018064179A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • aspects pertain to wireless communications. Some aspects relate to wireless networks including 3GPP (Third Generation Partnership Project) networks, 3 GPP LTE (Long Term Evolution) networks, 3 GPP LTE-A (LTE Advanced) networks, and fifth-generation (5G) networks including new radio (NR) networks. Other aspects are directed to enabling vehicle-to-everything (V2X) services in next generation cellular networks, such as 5G networks.
  • 3GPP Third Generation Partnership Project
  • 3 GPP LTE Long Term Evolution
  • 3 GPP LTE-A Long Term Evolution Advanced
  • NR new radio
  • V2X vehicle-to-everything
  • LTE-A systems has increased due to both an increase in the types of devices such as user equipments (UEs) using network resources as well as the amount of data and bandwidth being used by various applications, such as video streaming, operating on these UEs.
  • UEs user equipments
  • MTC machine type communication
  • M2M machine-to- machine
  • V2X communications of a variety of different applications from a user equipment (UE) are to coordinate with various technologies, as well as among potentially rapidly moving vehicles.
  • V2X With autonomous driving and loT on the horizon, V2X through the connectivity in the car, among vehicles, between vehicles and the infrastructure as well as sensors and the "things" surrounding the cars becomes more desirable. At the same time, meeting the stringent requirements of autonomous driving and seamless connectivity on the go for V2X applications as well as within the car and IoT applications remains challenging.
  • FIG. 1 A illustrates an architecture of a network in accordance with some embodiments.
  • FIG. IB is a simplified diagram of a next generation wireless network in accordance with some embodiments.
  • FIG. 2 illustrates example components of a device 200 in accordance with some embodiments.
  • FIG. 4 is an illustration of a control plane protocol stack in accordance with some embodiments.
  • FIG. 5 is an illustration of a user plane protocol stack in accordance with some embodiments.
  • V2X communications are characterized by unique technical challenges due to a number of deployment-specific factors, such as a high vehicle mobility/speed as wells as dynamic vehicle topology.
  • the challenging radio environment of vehicular systems along with stringent V2X communication requirements may have specific implications on radio-layer design and thus detailed study and analysis of key eV2X technology components can be useful.
  • Various eV2X technology components are described herein, which can be used to efficiently support eV2X services, focusing on sidelink eV2X radio-layer aspects.
  • RAN 110 communicatively couple, with a radio access network (RAN) 110 - the RAN 110 may be, for example, an Evolved Universal Mobile
  • the UE 102 may further directly exchange communication data with another UE via a ProSe interface.
  • the ProSe interface 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
  • FIG. 2 illustrates example components of a device 200 in accordance with some embodiments.
  • the device 200 may include application circuitry 202, baseband circuitry 204, Radio Frequency (RF) circuitry 206, front-end module (FEM) circuitry 208, one or more antennas 2 0, and power management circuitry (PMC) 212 coupled together at least as shown.
  • the components of the illustrated device 200 may be included in a terminal device (e.g., in a UE or another mobile device) or a RAN node.
  • the device 200 may include less elements (e.g., a RAN node may not utilize application circuitry 202, and instead include a processor/controller to process IP data received from an EPC).
  • the application circuitry 202 may include one or more application processors.
  • the application circuitry 202 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 memory/ storage and may be configured to execute instructions stored in the memory/storage to enable various applications or operating systems to run on the device 200.
  • processors of application circuitry 202 may process IP data packets received from an EPC.
  • the baseband circuitry 204 may provide for communication compatible with one or more radio
  • the receive signal path of the RF circuitry 206 may include mixer circuitry 206 A, amplifier circuitry 206B and filter circuitry 206C.
  • the transmit signal path of the RF circuitry 206 may include filter circuitry 206C and mixer circuitry 206A.
  • RF circuitry 206 may also include synthesizer circuitry 206D for synthesizing a frequency for use by the mixer circuitry 206 A of the receive signal path and the transmit signal path.
  • the mixer circuitry 206 A of the receive signal path may be configured to down- convert RF signals received from the FEM circuitry 208 based on the synthesized frequency provided by synthesizer circuitry 206D.
  • the amplifier circuitry 206B may be configured to amplify the down-converted signals and the filter circuitry 206C may be a low-pass filter (LPF) or bandpass 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 204 for further processing.
  • the output baseband signals may be zero-frequency baseband signals, although this is not a requirement.
  • mixer circuitry 206 A of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 206 A of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 206D to generate RF output signals for the FEM circuitry 208.
  • the baseband signals may be provided by the baseband circuitry 204 and may be filtered by filter circuitry 206C.
  • the mixer circuitry 206A of the receive signal path and the mixer circuitry 206A of the transmit signal path may include two or more mixers and may be arranged for quadrature downconversion and upconversion, respectively.
  • the mixer circuitry 206 A of the receive signal path and the mixer circuitry 206A 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 206A of the receive signal path and the mixer circuitry 206 A may be arranged for direct downconversion and direct upconversion, respectively.
  • the mixer circuitry 206A of the receive signal path and the mixer circuitry 206A 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 206 may include analog-to-digital converter (ADC) and digital-to- analog converter (DAC) circuitry and the baseband circuitry 204 may include a digital baseband interface to communicate with the RF circuitry 206.
  • 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 206D may be configured to synthesize an output frequency for use by the mixer circuitry 206 A of the RF circuitry 206 based on a frequency input and a divider control input. In some embodiments, the synthesizer circuitry 206D may be a fractional N/ + 1 synthe sizer .
  • FEM circuitry 208 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 210, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 206 for further processing.
  • FEM circuitry 208 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF ' circuitry 206 for transmission by one or more of the one or more antennas 210.
  • the amplification through the transmit signal paths or the receive signal paths may be done solely in the RF circuitry 206, solely in the FEM 208, or in both the RF circuitry 206 and the FEM 208.
  • FIG. 2 shows the PMC 212 coupled only with the baseband circuitry 204.
  • the PMC 212 may be additionally or alternatively coupled with, and perform similar power management operations for, other components such as, but not limited to, application circuitry 202, RF circuitry 206, or FEM 208.
  • the baseband circuitry 204 may further include one or more interfaces to communicatively couple to other circuitries/devices, such as a memory interface 312 (e.g., an interface to send/receive data to/from memory external to the baseband circuitry 204), an application circuitry interface 314 (e.g., an interface to send/receive data to/from the application circuitry 202 of FIG. 2), an RF circuitry interface 3 16 (e.g., an interface to send/receive data to/from RF circuitry 206 of FIG.
  • a memory interface 312 e.g., an interface to send/receive data to/from memory external to the baseband circuitry 204
  • an application circuitry interface 314 e.g., an interface to send/receive data to/from the application circuitry 202 of FIG. 2
  • an RF circuitry interface 3 16 e.g., an interface to send/receive data to/from RF circuitry 206 of FIG.
  • a wireless hardware connectivity interface 318 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 320 e.g., an interface to send/receive power or control signals to/from the PMC 212).
  • FIG. 4 is an illustration of a control plane protocol stack in accordance with some embodiments.
  • a control plane In this embodiment, a control plane
  • the 400 is shown as a communications protocol stack between the UE 102, the RAN node 111 (or alternatively, the RAN node 1 12), and the MME 121.
  • the PHY layer 40 may transmit or receive information used by the MAC layer 402 over one or more air interfaces.
  • the PHY layer 40 may transmit or receive information used by the MAC layer 402 over one or more air interfaces.
  • the PHY layer 401 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 the RRC layer 405.
  • the PHY layer 401 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 402 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.
  • SDUs MAC service data units
  • TB transport blocks
  • HARQ hybrid automatic repeat request
  • the RLC layer 403 may operate in a plurality of modes of operation, including: Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM).
  • the RLC layer 403 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.
  • PDUs protocol data units
  • ARQ automatic repeat request
  • the RLC layer 403 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.
  • the main services and functions of the RRC layer 405 may include broadcast of system information (e.g., included in Master
  • MIBs MIBs
  • SIBs System Information Blocks
  • AS access stratum
  • RRC connection paging RRC connection establishment, RRC connection modification, and RRC connection release
  • RRC connection release RRC connection release
  • security functions including key management, inter radio access technology (RAT) mobility, and
  • the UE 102 and the RAN node 11 1 may utilize a Uu interface (e.g., an LTE-Uu interface) to exchange control plane data via a protocol stack comprising the PHY layer 401, the MAC layer 402, the RLC layer 403, the PDCP layer 404, and the RRC layer 405.
  • a Uu interface e.g., an LTE-Uu interface
  • the non-access stratum (NAS) protocols 406 form the highest stratum of the control plane between the UE 102 and the MME 121.
  • the NAS protocols 406 support the mobility of the UE 102 and the session management procedures to establish and maintain IP connectivity between the UE 102 and the P-GW 123.
  • the S I Application Protocol (Sl-AP) layer 415 may support the functions of the S I interface and comprise Elementary Procedures (EPs).
  • An EP is a unit of interaction between the RAN node 111 and the CN 120.
  • the S l-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
  • E-RAB E-UTRAN Radio Access Bearer
  • RIM Radio Information Management
  • the Stream Control Transmission Protocol (SCTP) layer (alternatively referred to as the SCTP/IP layer) 414 may ensure reliable delivery of signaling messages between the RAN node 111 and the MME 121 based, in part, on the IP protocol, supported by the IP layer 413.
  • the L2 layer 412 and the LI layer 41 1 may refer to communication links (e.g., wired or wireless) used by the RAN node and the MME to exchange information.
  • the RAN node 111 and the MME 121 may utilize an S -
  • MME interface to exchange control plane data via a protocol stack comprising the LI layer 411, the L2 layer 412, the IP layer 413, the SCTP layer 414, and the S 1 -AP layer 415.
  • FIG. 5 is an illustration of a user plane protocol stack in accordance with some embodiments.
  • a user plane 500 is shown as a communications protocol stack between the UE 102 (or alternatively, the UE 102), the RAN node 11 1 (or alternatively, the RAN node 112), the S-GW 122, and the P-GW 123.
  • the user plane 500 may utilize at least some of the same protocol layers as the control plane 400.
  • the UE 102 and the RAN node 111 may utilize a Uu interface (e.g., an LTE-Uu interface) to exchange user plane data via a protocol stack comprising the PHY layer 401 , the MAC layer 402, the RLC layer 403, and the PDCP layer 404.
  • a Uu interface e.g., an LTE-Uu interface
  • Protocol for the user plane (GTP-U) layer 504 may be used for carrying user data within the GPRS core network and between the radio access network and the core network.
  • the user data transported can he packets in any of IPv4, IPv6, or PPP formats, for example.
  • the UDP and IP security (UDP/IP) layer 503 may provide checksums for data integrity, port numbers for addressing different functions at the source and destination, and encryption and authentication on the selected data flows.
  • the RAN node 111 and the S-GW 122 may utilize an Sl-U interface to exchange user plane data via a protocol stack comprising the LI layer 41 1, the L2 layer 412, the UDP/IP layer 503, and the GTP-U layer 504.
  • the S-GW 122 and the P-GW 123 may utilize an S5/S8a interface to exchange user plane data via a protocol stack comprising the LI layer 411, the L2 layer 412, the UDP/IP layer 503, and the GTP-U layer 504.
  • NAS protocols support the mobility of the UE 102 and the session management procedures to establish and maintain IP
  • FIG. 6 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
  • FIG. 6 shows a
  • FIG. 600 diagrammatic representation of hardware resources 600 including one or more processors (or processor cores) 610, one or more memory/storage devices 620, and one or more communication resources 630, each of which may be communicatively coupled via a bus 640.
  • a hypervisor 602 may be executed to provide an execution environment for one or more network slices/sub- slices to utilize the hardware resources 600
  • the processors 610 may include, for example, a processor 612 and a processor 614,
  • the memory/storage devices 620 may include main memory, disk storage, or any suitable combination thereof.
  • memory/ storage devices 620 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 630 may include
  • the communication resources 630 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., Bluetooth® Low Energy
  • Wi-Fi® components e.g., Wi-Fi® components
  • the eNB 1 1 1 may transmit a signal on multiple beams 705-720, any or all of which may be received at the UE 102.
  • the number of beams or transmission angles as shown are not limiting.
  • the beams 705-720 may be directional, transmitted energy from the beams 705-720 may be concentrated in the direction shown. Therefore, the UE 102 may not necessarily receive a significant amount of energy from beams 705 and 710 in some cases, due to the relative location of the UE 102.
  • the number of MIMO layers that may actually be used will depend on the quality of the signaling received at the UE 102, and the availability of reflected beams arriving at diverse angles at the UE 102 such that the UE 102 may discriminate the data carried on the separate beams.
  • the e B 11 1 can communicate control signal messaging (e.g., downlink control information, or DCI) with an antenna panel selection and a beam index selection for the UE to use when receiving data (e.g., via PDSCH) or transmitting data (e.g., via PUSCH).
  • control signal messaging e.g., downlink control information, or DCI
  • DCI downlink control information
  • antenna switching in an LTE communication system supports spatial diversity schemes at the UE.
  • the antenna switching can be applied at the UE transmitter (i.e. for uplink
  • the UE In the antenna switching in the receiving mode, the UE does not process the signals received by all receiving antennas. Instead, the UE can dynamically use the antenna subset that have optimal instantaneous link conditions to the eNB transmitter, and only processes the signals received by those antennas. This technique can enable the receiver to employ smaller number of transceiver units (TXRUs) or radio frequency (RF) chains. Similarly, in transmit antenna switching, the UE transmitter employs smaller number of TXRUs or RF chains than the available number of antennas. For example, for typical uplink implementation of LTE, the UE can be equipped with two antenna elements for the receiving mode (i.e., for downlink communications) and only one antenna element in
  • transmitting mode i.e., for uplink communications.
  • TX transmit
  • Different number of the transmit and receive antennas in this case makes the antenna switching in the uplink an attractive technology to support diversity schemes in a cost efficient manner.
  • LTE uplink transmissions can use antenna switching, which is supported by 1-bit feedback from the eNB to indicate to the UE the selected antenna to use for transmitting data.
  • the data can be transmitted on the Physical Uplink Shared Channel (PUSCH).
  • the feedback can be communicated by the eNB in the uplink scheduling grant communicated on a control channel.
  • the antenna switching can be supported by specifying the antenna order that should be used for the SRS transmission in a given OFDM symbol. Conventionally, antenna switching for the DL is not supported in LTE.
  • evolved V2X (or eV2X) communication use cases can target assisted or autonomous driving applications, including but not limited to vehicle platooning (limited or fully automated), collective perception of environment, remote driving, and autonomous driving (limited or fully automated).
  • the evolved V2X use cases can be associated with requirements on different V2X communication types including V2V, V2I and V2N, where a vehicle communicates with other vehicles, Road Side Units (UE-or gNB-type RSUs), or a server residing in a network, respectively.
  • the end-to-end communication latency can vary in the range from 5 to 30 ms (with typical values below 10ms), and associated reliability can vary in the range from 90% to 99.999%.
  • eV2X systems can support periodic and event triggered transmissions with packet size from 300 bytes to 6500 bytes.
  • the eV2X communications data rate can vary from a few 0.5-2 Mbps to 1 Gbps, where throughput of 10-60 Mbps can be considered as a typical values in case of video sharing for autonomous platooning and driving.
  • target communication ranges can vary from 80m to 1000m, where larger ranges can be characterized by lower reliability and latency requirements (e.g., 3ms/200m/99.999%, 10ms/500m/99.99%, and 50ms/1000m/99%).
  • R-based V2X communication can be configured to support solutions that can provide low latency, high reliability, long range, and various data rates (from low to high). Beside traditional communication requirements, many of eV2X applications can be configured with high precision positioning capabilities that are essential for autonomous driving applications.
  • FIG. 8 illustrates an exemplary V2X communication environment according to some aspects described herein.
  • the V2X communication environment 800 may include various V2X enabled devices, such as vehicular terminal devices (e.g., vehicles) 808 and 810, a roadside unit (RSU) 806, a V2X enabled base station or an evolved Node-B (base station) 804, and a V2X enabled infrastructure 802.
  • vehicular terminal devices e.g., vehicles
  • RSU roadside unit
  • base station evolved Node-B
  • Each of the V2X enabled devices within the V2X communication environment 800 may include a plurality of radios, where each radio may be configured to operate in one or more of a plurality of wired or wireless radio access technologies, RATs.
  • RATs wired or wireless radio access technologies
  • Example RATs include a dedicated short-range communication (DSRC) radio communication technology, a wireless access vehicular environment (WAVE) radio communication technology, a Bluetooth radio communication technology, an IEEE 802.1 1 radio communication technology, an LTE radio communication technology, and a 5G radio communication technology (e.g., communications in a mm Wave band of frequencies 30-300 GHz and/or cm Wave bands in frequencies below 30 GHz).
  • DSRC dedicated short-range communication
  • WAVE wireless access vehicular environment
  • Bluetooth radio communication technology e.g., a Bluetooth radio communication technology
  • IEEE 802.1 1 radio communication technology e.g., an IEEE 802.1 1 radio communication technology
  • LTE radio communication technology e.g., LTE radio communication technology
  • 5G radio communication technology e.g., communications in a mm Wave band of frequencies 30-300 GHz and/or cm Wave bands in frequencies below 30 GHz.
  • V2X deployments within the V2X communication environment 800 may use multiple RATs operating on different bands (e.g., licensed, un-licensed, light licensed and high frequency bands) to improve V2X wireless connectivity.
  • V2X communication infrastructure within the V2X environment 800 may be deployed with different tiers of cells comprising traditional macro-cells, small cells deployed on RSUs (e.g., RSU 806) as well as allow for direct vehicle-to-vehicle communication (e.g., communication between vehicles 808 and 810 using multiple hops).
  • communications within the V2X environment 800 may for example include V2N (Vehicle-to- Network) communications, V2I (Vehicle-to-Infrastructure)
  • V2V Vehicle-to- Vehicle
  • V2P Vehicle-to-Pedestrians
  • multiple V2X communication links such as communication links 812, may be exploited to improve the connectivity performance of the V2X environment 800.
  • the communication links 812 in FIG. 8 are illustrated only as examples and other links may also be used in the V2X communication environment.
  • Each of the links 812 between any two or more of the V2X enabled devices in FIG. 8 can include multi-links, using the same or different RATs of multiple available RATs.
  • terminal devices 808 and 810 within the V2X communication environment 800 can be configured for high speed V2V communication, at high carrier frequencies (e.g. 5.9 GHz in low band communications, and 63 GHz in high band communications respectively).
  • the subcarrier spacing can be optimized to make NR. eV2X design more robust to Doppler effects and synchronization errors.
  • the frequency offset caused by Doppler effects and synchronization errors may be up to 7.4 kHz.
  • ICI inter-carrier interference
  • increased subcarrier spacing and reduced symbol durations can be considered.
  • the 30 and 60 kHz subcarrier spacing can be used.
  • the subcarrier spacing can be scaled up accordingly (e.g., 240 and 480 kHz subcarrier spacing can be used).
  • FIG. 9 illustrates an exemplary depiction of a
  • communication network 900 may be an end-to-end network spanning from radio access network 902 to backbone networks 932 and 942.
  • Backbone networks 932 and 942 may be realized as predominantly wireline networks.
  • Network access nodes 920 to 926 may include a radio access network and may wirelessiy transmit and receive data with terminal devices 904 to 916 to provide radio access connections to terminal devices 904 to 916.
  • Terminal devices 904 to 916 may utilize the radio access connections provided by radio access network 902 to exchange data on end-to-end communication connections with servers in backbone networks 932 and 942.
  • the radio access connections between terminal devices 904 to 916 and network access nodes 920 to 926 may be implemented according to one or more RATs, where each terminal device may transmit and receive data with a corresponding network access node according to the protocols of a particular RAT that governs the radio access connection.
  • one or more of terminal devices 904 to 916 may utilize licensed spectrum or unlicensed spectrum for the radio access connections.
  • one or more of terminal devices 904 to 916 may directly communicate with one another according to any of a variety of different device-to-device (D2D) communication protocols.
  • D2D device-to-device
  • terminal devices such as terminal devices 906 to 910 may rely on a forwarding link provided by terminal device 904, where terminal device 904 may act as a gateway or relay between terminal devices 906 to 910 and network access node 920.
  • terminal devices 906 to 910 may be configured according to a mesh or multi-hop network and may communicate with terminal device 904 via one or more other terminal devices and using one or more multi- link connections using one or more of multiple RATs (multi-RAT).
  • multi-RAT multiple RATs
  • the configuration of terminal devices may change dynamically e.g., according to terminal or user requirements, the current radio or network environment, the availability or performance of applications and sendees, or the cost of communications or access.
  • terminal devices such as terminal device 916 may utilize relay node 918 to transmit or receive data with network access node 926, where relay node 918 may perform relay transmission between terminal devices 916 and network access node 926, e.g., with a simple repeating scheme or a more complex processing and forwarding scheme.
  • the relay may also be a realized as a series of relays, or use opportunistic relaying, where a best or approximately best relay or series of relays at a given moment in time or time interval is used,
  • network access nodes such as network access node 924 and 926 may interface with core network 930, which may provide routing, control, and management functions that govern both radio access connections and core network and backhaul connections.
  • core network 930 may interface with backbone network 942, and may perform network gateway functions to manage the transfer of data between network access nodes 924 and 926 and the various servers of backbone network 942.
  • network access nodes 924 and 926 may be directly connected with each other via a direct interface, which may be wired or wireless.
  • network access nodes such as network access nodes 920 may interface directly with backbone network 932.
  • network access nodes such as network access node 922 may interface with backbone network 932 via router 928.
  • Backbone networks 932 and 942 may contain various different Internet and external servers in servers 934 to 938 and 944 to 948.
  • Terminal devices 904 to 916 may transmit and receive data with servers 934 to 938 and 944 to 948 on logical software-level connections that rely- on the radio access network and other intermediate interfaces for lower layer transport.
  • Terminal devices 904 to 916 may therefore utilize communication network 900 as an end-to-end network to transmit and receive data, which may include internet and application data in addition to other types of user-plane data.
  • backbone networks 932 and 942 may interface via gateways 940 and 950, which may be connected at interchange 952.
  • terminal devices 904 to 916 may be mobile de vices such as smartphones, tablet PCs, and the like. Other terminal devices may be static devices such as devices integrated in a V2X communication environment. By way of example, some terminal devices may be integrated in a traffic light or a traffic sign or in a street post, and the like. Some terminal devices may be integrated in a vehicle. Some of the terminal devices 904 to 916 may be low power consumption devices, some of the terminal devices may provide a minimum QoS, and some may provide the capability to communicate using multi-links on different RATs and so forth.
  • Terminal devices having various mobile radio capabilities may be integrated in traffic infrastructure objects 1002-1020. These terminal devices may be configured to support different RATs, such as one or more Short Range radio communication technologies or one or more Cellular Wide Area radio communication technologies or one or more cellular narrowband radio communication technologies as described herein. An arbitrary number of base stations (e.g., 11 and 112) or Wireless Access Points may also be provided to be part of one or more different RATs which may be of the same or of different radio communication network providers. [00128] More and more vehicles (e.g., vehicles 1028-1040) may he connected to the Internet and to each other via one or more communication links (e.g., multiple mm Wave and/or cmWave communication links).
  • RATs such as one or more Short Range radio communication technologies or one or more Cellular Wide Area radio communication technologies or one or more cellular narrowband radio communication technologies as described herein.
  • An arbitrary number of base stations (e.g., 11 and 112) or Wireless Access Points may also be provided to be part of one or more
  • multi-link connectivity in the V2X communication network 1000 may be based on using communication links operating on the same or different frequency bands, as well as on different RATs or the same RAT.
  • Example V2X communication technologies which may be included in the RATs include DSRC, LTE-based communications (e.g., LTE MBMS, LTE SC-PTM, LTE ProSe, LTE V2X, and LTE-Uu communications), WLAN (802.1 1- based protocols and standards), LWA, LAA, Multefire, 5G NR (New- Radio), legacy communication standards (e.g., 2G/3G standards), and so forth.
  • processors 1 140 e.g., hardware processors, processing circuitry, microprocessors, central processing units (CPUs), etc.
  • processors 1 140 may be provided and may be provided and may be provided.
  • a terminal device may be configured to operate on at least one RAT of a plurality of RATs.
  • a terminal device configured to operate on a plurality of R ATs (e.g., the first and second R ATs) may be configured in accordance with the wireless protocols of both the first and second RATs and optionally in addition in accordance with a wireless protocol of a third RAT (and likewise for operation on additional RATs).
  • the controller 1206 may comprise suitable circuitry, logic, interfaces or code and may be configured to execute upper-layer protocol stack functions.
  • the DSP 1204 may comprise suitable circuitry, logic, interfaces or code and may be configured to perform physical layer (PHY) processing.
  • the RF transceiver 1202 may be configured to perform RF processing and amplification related to transmission and reception of wireless RF signals via the antenna system 1123.
  • the DSP 1204 may include one or more processors configured to retrieve and execute program code that defines control and processing logic for physical layer processing operations.
  • the DSP 1204 may be configured to execute processing functions with software via the execution of executable instructions.
  • the DSP 1204 may include one or more dedicated hardware circuits (e.g., ASICs, FPGAs, and other hardware) that are digitally configured to specifically execute processing functions, where the one or more processors of the DSP 1204 may offload certain processing tasks to these dedicated hardware circuits, which may be referred to as hardware accelerators.
  • Exemplary hardware accelerators may include Fast Fourier Transform
  • an application processor which may be configured to handle the layers above the protocol stack, including the transport and application layers.
  • the application processor may be configured to act as a source for some outgoing data transmitted by the radio communication system 1 121, and a sink for some incoming data received by the radio communication system 1 121 .
  • the controller 1206 may be configured to receive and process outgoing data provided by the application processor according to the layer-specific functions of the protocol stack, and provide the resulting data to the DSP 1204.
  • the DSP 1204 may be configured to perform physical layer processing on the received data to produce digital baseband samples, which the DSP may provide to the RF transceiver 1202.
  • a terminal device 1402 (e.g., a vehicle).
  • the terminal device 1402 may be configured for multi-band multi-channel operation.
  • the terminal device 1402 can include multiple transceivers coupled to an antenna array, where each transceiver can be configured to operate in one or more bands of a radio 25 access technology in a communication band spectrum 1410 (e.g., from 3 GHz to 300 GHz).
  • a first transceiver 1412 can be configured to operate in a first communication band 1408, and a second transceiver 1414 can be configured to operate in a second communication band 1404.
  • a third transceiver 1416 can be configured to 30 operate in a third communication band 1406.
  • the first communication band 1408 can be a communication band below 6 GHz
  • the second and third communication bands 1404 and 1406 can include a communication band above 6 GHz (e.g., 63 GHz).
  • the second and third transceivers can be located at different locations within the terminal device so that directional communication using multiple communication links above 6 GHz can be achieved.
  • communication band 1408 (e.g., below 6 GHz, such as 5.9 GHz) can use 10-20 MHz or above (e.g. up to 100 MHz) bandwidth.
  • the communication at the second and third communication bands 1404 and 1406 (e.g., above 6 GHz, such as 63 GHz) can use can use bandwidth of approximately 1 GHz or other bandwidths (e.g. 400, 500, 1000, 2000 MHz).
  • communications using transceivers 1414 and 1416 use highly directional high data rates communications, such transceivers can be disposed at different locations within the terminal device (e.g. as seen in FIG. 14 or at other locations, such as on top of a rooftop, at bumper level, at side mirrors, etc.).
  • the synchronized multi-band/multi-channel operation can further increase eV2X NR system reliability.
  • the communication links at high carrier frequencies may not be reliable due to channel blockage or obstruction and can suffer from the reduced communication range. At high carrier frequency, the reliable connection may often be possible only with rear and front vehicles. From eV2X service perspective, it is often desirable to communicate with other vehicles in the same lane.
  • the relaying solution can serve this purpose, however it may cause additional protocol latency and may not be efficient at high bands especially for transmission of the short control messages.
  • the alternative way to extend coverage is to utilize communication at low band (e.g., below 6GHz, such as 5.9 GHz), which is less sensitive to propagation path obstruction.
  • FIG. 15 illustrates a terminal device configured for multi- band/multi-channel operation in accordance with some aspects.
  • a terminal device 1502 e.g., a vehicle
  • the terminal device 1502 may be configured for multi-band multi-channel operation.
  • the terminal device 1502 can include multiple transceivers coupled to an antenna array, where each transceiver can be configured to operate in one or more bands of a radio access technology (e.g., 5G radio access technology).
  • a radio access technology e.g., 5G radio access technology
  • a first transceiver can be configured to operate in a first communication band 1502 for communication with another terminal device 506 (e.g., eNB), which can be a low data rate communication band (e.g., below 6 GHz, such as 5.9 GHz).
  • a second transceiver can be configured to operate in a second communication band 1504, which can be a high data rate communication band (e.g., above 6 GHz, such as 63 GHz).
  • control PHY can be used for operation at high carrier frequencies.
  • this approach can be associated with reduced spectral efficiency given that multiple repetitions may be needed to overcome the propagation loss due to lack of directional antenna gains.
  • synchronized multi-band multi-channel operation can be configured at low and high frequency bands using one or more of the following techniques.
  • the terminal device 1500 can be configured for multi-band multi-channel eV2X NR
  • the terminal device 1500 can be configured to use low band communications (e.g., at 5.9 GHz) as a control plane to assist radio layer communications in a high band communication link.
  • the terminal device 1500 can be configured to use multi-band multi-channel operation to discover neighboring terminal devices (e.g., neighboring vehicles). For example, directionality of one or more high data rate communication links (e.g., above 6 GHz) can be used to discover devices in the vicinity of the terminal device 1500.
  • the terminal device 1500 can be configured to exchange geo-location information between communication nodes using sidelink communication on a low data rate communication link or a high data rate communication link.
  • the terminal device 1500 can be configured to exchange control signaling information for radio resource management, where the radio resources can include time, frequency or spatial (beam) or code (signal) or polarization resources for control or data signaling.
  • the terminal device 1500 can be configured to perform multi-antenna array beamforming at the TX and/or RX sides of the source and destination vehicle by utilizing geo-location information of the TX and RX antennas operating at high band, and sidelink communication at low band to assist beamforming in high band.
  • the terminal device 1500 can be configured for multichannel operation at low bands for load balancing.
  • FIG. 16 illustrates terminal devices using geo-location information for radio resource management, such as selection of radio resource for transmission/scheduling, in accordance with some aspects.
  • a communication environment 1600 which includes terminal devices (e.g., vehicles) 1606, 1608, 1610, and 1612.
  • communication resources can be divided between the terminal devices in a frequency division multiplexing scheme 1602, where each terminal device can communicate on a specific frequency band.
  • communication resources can be divided between the terminal devices in a time division multiplexing scheme 1604, where each terminal device can communicate within a frequency range at a given time.
  • a combination of time and frequency division multiplexing can be used as another option of operation and using communication resources.
  • the 1612 can be configured for utilization of vehicle geo-location information.
  • Autonomous driving applications can be used for exchanging geo-location information between the terminal devices, such as kinematic, telemetry and/or sensor information among vehicles (e.g., vehicle speed vector information indicating vehicle speed and travel direction, as well as vehicle current location).
  • vehicle speed vector information indicating vehicle speed and travel direction, as well as vehicle current location.
  • the geo-location information can be used for radio-resource management to improve reliability of sidelink-based V2X communication (e.g., as seen in FIG. 16). Under sufficient amount of spectrum resources, the spatial reuse principle can provide reliable V2V communication across large communication ranges (if spatial isolation range is sufficient).
  • the geo-location information can be used to determine subset of time-frequency resources (associated with certain geographical area) available for selection at the transmitting vehicle.
  • the vehicle may also utilize geo-location information of neighboring vehicles, competing for resources.
  • the availability of more precise geo- location information can be used to assist in radio-resource management and provide spatial isolation for broadcast / groupcast / unicast V2X communication.
  • vehicle geo- location information can be used to improve reliability of NR. eV2X sidelink communications.
  • the geo-location information of neighboring vehicles can be used for radio-resource selection and management including resource scheduling. For example, geolocation information exchanged using low data rate communication links (e.g., communication links at frequencies below 6 GHz) can be used to assess the density of the communication environment.
  • vehicle velocity vector information can be used to improve sensing and radio-resource selection by sharing subset of resources by vehicles moving in the same direction. For example and in reference to FIG.
  • terminal devices 1606 can determine that terminal device 1608 is traveling in the same direction, and spectral resources can be divided between terminal devices 1606 and 1608 based on such common direction of travel.
  • a terminal device or an eNB
  • vehicle geo-location information as exchanged using one or more low data rate communication links can be used for spatial beam (or antenna port) or demodulation reference signal selection, and to improve communication on one or more high data rate communication links.
  • vehicle geo-location information can be used for advanced relaying techniques and intelligent message forwarding (e.g., as seen in reference to FIG. 17).
  • terminal device 1710 When terminal devices 1704 and 1710 are located outside a predetermined range from the relaying device 1702, terminal devices 1704 and 1710 can be considered located within a "relaying region" as indicated in FIG. 17).
  • a resource grid 1800 which can be a representation of spectrum (e.g., time, frequency, frame, etc.) that is available for communication using low data rate (e.g. at frequencies below 6 GHz) and/or high data rate communication links (e.g. at frequencies above 6 GHz).
  • Terminal devices 1802 - 1810 can perform sensing to detect available communication resources associated with the resource grid 1800.
  • a terminal device can receive a first data communication using a first type of communication link (e.g. a low data rate communication link), and transmit a second data communication (or relay the first data communication) using another communication link of the first type or a second type (e.g., a high data rate communication link).
  • a terminal device can be configured to
  • a first terminal device 1802 can use a first resource Rl to transmit a data message to terminal device 1804.
  • Terminal device 1804 can be configured to receive the transmission from terminal device 1802 using spectral resource Rl, while transmitting its own transmission using second available resource R2.
  • Terminal device 1802 can receive the data transmission from terminal device 1804 using available resource R2, and then relay the received transmission from terminal device 1804 to another terminal device using a third available resource R3.
  • terminal device 1804 can be configured to transmit a data communication on a second available resource R2 to terminal device 1802, while terminal device 1802 can be configured to forward the received communication from device 1804 or communication from another device (or a combination of its own communication and communication received from another device), onto a third terminal device using the third available
  • geo-location information communicated on low data rate links can be used for multi-hop radio-layer relaying based on relative geographical or radio distance between the source vehicle and the relay vehicle.
  • combination of multi-hop radio-layer relaying with sensing based principle can be used for selecting an optimal radio resource for transmission (e.g., utilizing the spectral resource associated with minimal interference or noise energy).
  • combination of multi-hop radio-layer relaying can be used with sensing-based resource selection, exchange of geo-location information, and network coding principles for generating a combined message for subsequent relaying and communication.
  • sensing-based radio-resource selection can be used for data forwarding with increased reliability.
  • a challenges for multi-antenna technology at high carrier frequencies can include TX-RX beam tuning to establish reliable communication link between a transmitter and a receiver.
  • the TX-RX beam tuning can be a challenging procedure, especially in instances when communication with multiple vehicles needs to be supported (e.g., broadcast communication).
  • the TX and RX beam sweeping across multiple terminal devices (e.g., vehicles) may impose significant overhead on overall system performance especially if broadcast type of
  • multi-antenna technologies and distributed antenna systems can be used in a V2X communication environment. More specifically, multi-antenna technologies and vehicle distributed antenna systems can include multi-layer V2V communications, full duplex communications with simultaneous transmit and receive functions from antennas installed in front and rear sides of the vehicle, beamforming to reduce system overhead for establishment of directional unicast
  • V2X communication techniques disclosed herein can use broadcast, groupcast, and/or unicast communication links using a low data rate and/or high data rate communications.
  • groupcast eV2X communication is platooning, which assumes message exchange among platoon members (i.e., a set of vehicles moving in the same direction).
  • platoon application may be configured so that a lead vehicle controls platoon operation, including radio resource control, communications spectrum detection, spectrum assignment, spectrum reassignment, and so forth (i.e., localized radio-resource management by a lead vehicle for reliable groupcast V2V communications).
  • communication flow control and spectrum resources can be pre-scheduled, which may be based on radio resource management by one of the members in the platoon group of terminal devices.
  • the amount of time resources may be rather limited at low band, e.g., 80 or 160 resources assuming 60 kHz subcarrier spacing and scaled sub frame or slot based communication respectively.
  • multiple time resources can be used by a transmitter in order to ensure that probability of foil overlap is below reliability target.
  • the communication device 2100 may additionally include a storage device (e.g., drive unit) 2116, a signal generation device 2118 (e.g., a speaker), a network interface device 2120, and one or more sensors 2121, such as a global navigation satellite system (GNSS) sensor, compass, accelerometer, or other sensor.
  • the communication device 2 00 may include an output controller 2128, such as a serial (e.g., universal serial bus (USB), parallel, or other wired or wireless (e.g., infrared (IR), near field communication (NFC), etc.) connection to communicate or control one or more peripheral devices (e.g., a printer, card reader, etc.).
  • a serial e.g., universal serial bus (USB), parallel, or other wired or wireless (e.g., infrared (IR), near field communication (NFC), etc.) connection to communicate or control one or more peripheral devices (e.g., a printer, card reader, etc.).
  • USB universal serial bus
  • communication device readable medium 2122 is illustrated as a single medium, the term “communication device readable medium” may include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) configured to store the one or more instructions 2124.
  • Example 20 the subject matter of Examples 1-19 includes, receiver circuitry configured to: perform joint detection of the multiple V2X communication nodes of the plurality of V2X
  • Example 26 the subject matter of Examples 24-25 includes, wherein the processing circuitry is arranged to: apply one of a logical function or a linear combination function to the data message and the third data message to generate the combined message,
  • Example 33 the subject matter of Example 32 includes, wherein the one or more processors further configure the V2X UE to: decode a first data message from a first mobile V2X communication node of the subset of V2X communication nodes, the first data message received by the second transceiver using a first time and frequency resource of the second communication band; and decode a second data message from a second mobile V2X communication node of the subset of V2X
  • Example 39 the subject matter of Examples 32-38 includes, wherein the first communication band is a centimeter wave (cmWave) communication band, and the second communication band is a millimeter wave (mmWave) communication band.
  • the first communication band is a centimeter wave (cmWave) communication band
  • the second communication band is a millimeter wave (mmWave) communication band.

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Abstract

L'invention concerne des dispositifs et des procédés destinés à des communications de véhicule à tout (V2X). Un équipement utilisateur V2X (UE V2X) peut comprendre des circuits de traitement agencés pour configurer un premier émetteur-récepteur parmi une pluralité d'émetteurs-récepteurs afin de recevoir des informations de géolocalisation provenant d'une pluralité de nœuds de communication V2X mobiles, par l'intermédiaire d'une première liaison de communication dans une première bande de communication. Une procédure de détection est effectuée pour déterminer un ensemble de ressources radio candidates disponibles en vue de la transmission. Une distance par rapport à la pluralité de nœuds de communication V2X et une caractéristique d'intensité de signal pour chaque nœud parmi la pluralité de nœuds de communication V2X sont déterminées sur la base des informations de géolocalisation reçues. Un sous-ensemble de nœuds de communication V2X est sélectionné sur la base de la distance déterminée qui se situe à l'intérieur d'une distance seuil et de la caractéristique d'intensité de signal déterminée pour chaque nœud parmi la pluralité de nœuds de communication V2X qui se situe à l'intérieur d'une intensité de signal de seuil.
PCT/US2017/053745 2016-09-30 2017-09-27 Services v2x dans des réseaux cellulaires de prochaine génération Ceased WO2018064179A1 (fr)

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