Classifications

• • 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
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L5/00—Arrangements affording multiple use of the transmission path
  • H04L5/003—Arrangements for allocating sub-channels of the transmission path
  • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W24/00—Supervisory, monitoring or testing arrangements
  • H04W24/08—Testing, supervising or monitoring using real traffic
• • 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
  • H04W4/029—Location-based management or tracking services
• • 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
  • H04W72/20—Control channels or signalling for resource management
  • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W92/00—Interfaces specially adapted for wireless communication networks
  • H04W92/16—Interfaces between hierarchically similar devices
  • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

• Wireless communication systems have developed through various generations, including a first-generation analog wireless phone service (1G), a second-generation (2G) digital wireless phone service (including interim 2.5G and 2.75G networks), a third-generation (3G) high speed data, Internet-capable wireless service and a fourth-generation (4G) service (e.g., Long Term Evolution (LTE) or WiMax).
• a first-generation analog wireless phone service (1G) 1G
• a second-generation (2G) digital wireless phone service including interim 2.5G and 2.75G networks
• 3G third-generation
• 4G fourth-generation
• LTE Long Term Evolution
• PCS personal communications service
• Examples of known cellular systems include the cellular analog advanced mobile phone system (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), the Global System for Mobile communications (GSM), etc.
• CDMA code division multiple access
• FDMA frequency division multiple access
• TDMA time division multiple access
• GSM
• sequences of actions to be performed by, for example, elements of a computing device. It will be recognized that various actions described herein can be performed by specific circuits (e.g., application specific integrated circuits (ASICs)), by program instructions being executed by one or more processors, or by a combination of both. Additionally, the sequence(s) of actions described herein can be considered to be embodied entirely within any form of non- transitory computer-readable storage medium having stored therein a corresponding set of computer instructions that, upon execution, would cause or instruct an associated processor of a device to perform the functionality described herein.
• ASICs application specific integrated circuits
• a communication link through which UEs can send signals to a base station is called an uplink (UL) channel (e.g., a reverse traffic channel, a reverse control channel, an access channel, etc.).
• a communication link through which the base station can send signals to UEs is called a downlink (DL) or forward link channel (e.g., a paging channel, a control channel, a broadcast channel, a forward traffic channel, etc.).
• DL downlink
• forward link channel e.g., a paging channel, a control channel, a broadcast channel, a forward traffic channel, etc.
• traffic channel can refer to either an UL / reverse or DL / forward traffic channel.
• the term “base station” may refer to a single physical transmission-reception point (TRP) or to multiple physical TRPs that may or may not be co-located.
• the base stations 102 may perform functions that relate to one or more of transferring user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, RAN sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment trace, RAN information management (RIM), paging, positioning, and delivery of warning messages.
• the base stations 102 may communicate with each other directly or indirectly (e.g., through the EPC / 5GC) over backhaul links 134, which may be wired or wireless.
• FR1 frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles.
• FR3 7.125 GHz - 24.25 GHz
• FR3 7.125 GHz - 24.25 GHz
• Frequency bands falling within FR3 may inherit FR1 characteristics and/or FR2 characteristics, and thus may effectively extend features of FR1 and/or FR2 into mid-band frequencies.
• higher frequency bands are currently being explored to extend 5GNR operation beyond 52.6 GHz.
• the D2D P2P links 192 and 194 may be supported with any well-known D2D RAT, such as LTE Direct (LTE-D), WiFi Direct (WiFi-D), Bluetooth®, and so on.
• the D2D P2P links 192 and 194 may be sidelinks, as described above with reference to sidelinks 162, 166, and 168.
• the SLP 272 may support similar functions to the LMF 270, but whereas the LMF 270 may communicate with the AMF 264, NG-RAN 220, and UEs 204 over a control plane (e.g., using interfaces and protocols intended to convey signaling messages and not voice or data), the SLP 272 may communicate with UEs 204 and external clients (e.g., third-party server 274) over a user plane (e.g., using protocols intended to carry voice and/or data like the transmission control protocol (TCP) and/or IP).
• TCP transmission control protocol
• the transmitter circuitry and receiver circuitry of a wired transceiver may be coupled to one or more wired network interface ports.
• Wireless transmitter circuitry e.g., transmitters 314, 324, 354, 364
• the receiver 312 receives a signal through its respective antenna(s) 316.
• the receiver 312 recovers information modulated onto an RF carrier and provides the information to the one or more processors 332.
• the transmitter 314 and the receiver 312 implement Layer- 1 functionality associated with various signal processing functions.
• the receiver 312 may perform spatial processing on the information to recover any spatial streams destined for the UE 302. If multiple spatial streams are destined for the UE 302, they may be combined by the receiver 312 into a single OFDM symbol stream.
• the receiver 312 then converts the OFDM symbol stream from the time-domain to the frequency domain using a fast Fourier transform (FFT).
• FFT fast Fourier transform
• the frequency domain signal comprises a separate OFDM symbol stream for each subcarrier of the OFDM signal.
• FIG. 6 illustrates time and frequency resources used for sidelink communication.
• a timefrequency grid 600 is divided into subchannels in the frequency domain and is divided into time slots in the time domain.
• Each subchannel comprises a number (e.g., 10, 15, 20, 25, 50, 75, or 100) of physical resource blocks (PRBs), and each slot contains a number (e.g., 14) of OFDM symbols.
• a sidelink communication can be (pre)configured to occupy fewer than 14 symbols in a slot. The first symbol of the slot is repeated on the preceding symbol for automatic gain control (AGC) settling.
• AGC automatic gain control
• the example slot shown in FIG. 4 contains a physical sidelink control channel (PSCCH) portion and a physical sidelink shared channel (PSSCH) portion, with a gap symbol following the PSCCH. PSCCH and PSSCH are transmitted in the same slot.
• PSCCH physical sidelink control channel
• PSSCH physical sidelink shared channel
• Mode 1 supports dynamic grants (DG), configured grants (CG) type 1, and CG type 2.
• CG type 1 is activated via RRC signaling from gNB.
• DCI 3 0 is transmitted by gNB to allocation time and frequency resources and indicates transmission timing.
• the modulation and coding scheme (MCS) MCS is up to UE within limit set by gNB.
• Mode 2 the transmitting UE performs channel sensing by blindly decoding all PSCCH channels and finds out reserved resources by other sidelink transmissions. The transmitting UE reports available resources to upper layer and upper layer decides resource usage.
• Sidelink positioning may support both relative and absolute positioning.
• Relative positioning e.g., ranging
• Absolute positioning relates to determination of geographic coordinates of a UE.
• Sidelink positioning may be performed based on measurement of sidelink positioning reference signals (PRS) transmitted over sidelink.
• PRS sidelink positioning reference signals
• the position estimation can be based on measurements of ToA, TDoA, AoA, RTT, etc., of the SL-PRS.
• the position estimation accuracy will be largely determined by the SL-PRS bandwidth.
• a positioning assistance message may be sent prior to and/or post SL PRS transmission, to carry SL positioning related configuration (e.g., PRS configuration, etc.), SL positioning related measurements (ToA, etc.), etc.
• a positioning assistance message may also be sent over sidelink (between UEs), but can be in licensed or ITS band (i.e., the same as regular sidelink transmissions)
• the group of UEs includes the first UE and at least one other UE including the second UE, the sidelink PRS pattern includes N PRS transmission occasions associated with the first UE, and the sidelink PRS pattern includes N PRS transmission occasions that are split between the at least one other UE, with each of the N PRS transmission occasions associated with the first UE being paired with one respective PRS transmission occasion from among the N PRS transmission occasions that are split between the at least one other UE.
• An example of this aspect is depicted in FIG. 11.
• FIG. 11 illustrates a sidelink PRS pattern 1100 in accordance with aspects of the disclosure.
• each responder UE’s PRS transmission occasion follows a PRS transmission occasion for the initiator UE.
• Clause 27 The method of any of clauses 18 to 26, wherein the first UE is an initiator UE, with a channel occupancy time (COT) for the sidelink position estimation procedure being initiated after a successful attempt to transmit the first PRS on the first PRS transmission occasion.
• COT channel occupancy time
• each PRS transmission occasion of the sidelink PRS pattern includes one or more orthogonal frequency-division multiplexing (OFDM) symbols.
• OFDM orthogonal frequency-division multiplexing
• Clause 66 The first UE of clause 65, wherein the second PRS is transmitted in accordance with a contention-based protocol.
• Clause 85 The second UE of any of clauses 81 to 84, wherein a duration of the first PRS transmission occasion is different than a duration of the second PRS transmission occasion.

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

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• 2021
  • 2021-09-22 US US17/482,157 patent/US11929952B2/en active Active
• 2022
  • 2022-08-05 KR KR1020247008882A patent/KR20240056827A/ko active Pending
  • 2022-08-05 WO PCT/US2022/074583 patent/WO2023049552A1/en not_active Ceased
  • 2022-08-05 EP EP22764601.5A patent/EP4406244A1/en active Pending
  • 2022-08-05 CN CN202280062819.3A patent/CN117981363A/zh active Pending
  • 2022-08-05 JP JP2024515477A patent/JP2024534345A/ja active Pending

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