Methods of ranging for next generation vehicle-to-everything (ngv) systems

Patent metadata

Field	Value
Publication number	US-2020132829-A1
Application number	US-201916728317-A
Country	US
Kind code	A1
Filing date	Dec 27, 2019
Priority date	Jan 9, 2019
Publication date	Apr 30, 2020
Grant date	—

Abstract

Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. In a null data packet (NDP) based ranging procedure between a responding STA and an initiating STA that is unassociated with the responding STA, the responding STA may: transmit a broadcast frame that indicates one or more ranging parameters; receive, from the initiating STA, an NDP announcement (NDPA) frame that indicates transmission of a first NDP from the initiating STA; detect the first NDP from the initiating STA; transmit a second NDP for transmission to the initiating STA; and transmit, to the initiating STA, a location measurement report (LMR) that indicates: a reception time of the first NDP at the responding STA, and a transmission time of the second NDP at the responding STA.

First claim

What is claimed is:

1 . An apparatus of a station (STA), the STA configurable to operate as a responding STA in a null data packet (NDP) based ranging procedure with an initiating STA that is unassociated with the responding STA, wherein the apparatus comprises: memory; and processing circuitry,
wherein when the STA operates as the responding STA, as part of the NDP based ranging procedure, the processing circuitry is configured to: encode, for transmission, a broadcast frame that indicates one or more ranging parameters, the ranging parameters comprising at least one of a bandwidth and frequency band; decode, from the initiating STA, an NDP announcement (NDPA) frame that indicates transmission of a first NDP from the initiating STA; detect the first NDP from the initiating STA; encode a second NDP for transmission to the initiating STA; and encode, for transmission to the initiating STA, a first location measurement report (LMR) that indicates: a reception time of the first NDP at the responding STA, and a transmission time of the second NDP at the responding STA.

2 . The apparatus according to claim 1 , wherein when the STA operates as the responding STA, the processing circuitry is further configured to:
decode, from the initiating STA, a second LMR that indicates: a transmission time of the first NDP at the initiating STA, and a reception time of the second NDP at the initiating STA; and determine a range between the initiating STA and the responding STA, the range determined based at least partly on one or more of: the reception time of the first NDP at the responding STA, the transmission time of the second NDP at the responding STA, the transmission time of the first NDP at the initiating STA, and the reception time of the second NDP at the initiating STA.

3 . The apparatus according to claim 1 , wherein the ranging parameters include one or more of:
a number of antennas of the responding STA, a number of spatial time streams supported for transmission by the responding STA, a number of spatial time streams supported for reception by the responding STA, and a number of antennas supported for reception by the responding STA.

4 . The apparatus according to claim 1 , wherein the ranging parameters include one or more of:
a number of repetitions supported by the responding STA, a feedback type for LMRs, wherein the feedback type is immediate or delayed, a maximum time interval between two consecutive ranging measurement sequences at the responding STA, and a minimum time interval between two consecutive ranging measurement sequences at the responding STA.

5 . The apparatus according to claim 1 , wherein the ranging parameters include one or more of:
a bandwidth used for ranging measurements at the responding STA, and a frequency band for ranging measurements at the responding STA.

6 . The apparatus according to claim 1 , wherein the processing circuitry is further configured to:
encode signaling for transmission to the initiating STA, wherein the signaling indicates a request to receive a ranging measurement report from the initiating STA.

7 . The apparatus according to claim 1 , wherein the processing circuitry is further configured to perform the NDP based ranging procedure without negotiation between the responding STA and the originating STA.

8 . The apparatus according to claim 1 , wherein the processing circuitry is further configured to encode the broadcast frame to include a medium access control (MAC) address of the responding STA.

9 . The apparatus according to claim 1 , wherein the responding STA is arranged to operate in accordance with a Next Generation Vehicular (NGV) protocol.

10 . The apparatus according to claim 1 , wherein:
the processing circuitry includes a baseband processor to encode the broadcast frame, the apparatus further comprises a transceiver to transmit the broadcast frame, and the memory is configured to store at least a portion of the broadcast frame.

11 . A non-transitory computer-readable storage medium of a first station (STA) that stores instructions for execution of operations by processing circuitry, wherein the operations configure the processing circuitry to:
decode a channel switch request message received from a second STA in a first frequency band, wherein the channel switch request message indicates that the second STA and the first STA are to switch to a second frequency band for a ranging procedure between the second STA and the first STA; decode a null data packet (NDP) announcement (NDPA) frame that indicates a first NDP from the second STA, wherein the NDPA is received from the second STA in the second frequency band; detect the first NDP from the second STA in the second frequency band; encode a second NDP for transmission to the second STA in the second frequency band; and encode a location measurement report (LMR) for transmission to the second STA in the second frequency band, wherein the LMR is encoded to include information related to one or more of: reception of the first NDP, and transmission of the second NDP.

12 . The non-transitory computer-readable storage medium according to claim 11 , wherein the operations further configure the processing circuitry to:
encode, for transmission to the second STA, a channel switch response message to acknowledge reception of the channel switch request message.

13 . The non-transitory computer-readable storage medium according to claim 11 , wherein:
the first frequency band is a Next Generation Vehicle (NGV) frequency band, that includes one or more channels of 10 mega-Hertz (MHz), and the second frequency band is a wireless local area network (WLAN) frequency band that includes one or more channels of 20, 40, 80, 160, and 320 MHz, and the second frequency band is in a frequency range at 2.4 GHz, 5 GHz or 6 GHz.

14 . The non-transitory computer-readable storage medium according to claim 11 , wherein the operations further configure the processing circuitry to:
encode a data packet for transmission in the first frequency band in accordance with a vehicle-to-everything (V2X) protocol or a vehicle-to-vehicle (V2V) protocol.

15 . An apparatus of a station (STA) configurable to operate in a Next Generation Vehicle-to-Everything (NGV) frequency band, the apparatus comprising: memory; and processing circuitry, configured to:
encode, for transmission, signaling that indicates a spectral mask of the STA, wherein the indicated spectral mask is included in a plurality of predefined candidate spectral masks, wherein at least one of the candidate spectral masks is a tight mask based on a reduced channel size in comparison to other channel sizes of other candidate spectral masks, wherein the signaling indicates whether the STA is capable of operation in accordance with the tight mask; encode, for transmission in accordance with the indicated spectral mask, one or more data packets.

16 . The apparatus according to claim 15 , wherein the signaling includes one or more of:
physical (PHY) layer signaling, medium access control (MAC) layer signaling, and application layer signaling.

Assignees

• Jiang Feng
• Li Qinghua
• Segev Jonathan
• Sadeghi Bahareh
• Kenney Thomas J
• Chen Xiaogang
• Shor Gadi
• Huang Po Kai
• Stacey Robert J
• Cariou Laurent

Inventors

• Jiang Feng
• Li Qinghua
• Segev Jonathan
• Sadeghi Bahareh
• Kenney Thomas J
• Chen Xiaogang
• Shor Gadi
• Huang Po-Kai
• Stacey Robert J
• Cariou Laurent

Classifications

• G01S13/765 Primary

  with exchange of information between interrogator and responder · CPC title

• G01S13/762 Primary

  with special measures concerning the radiation pattern, e.g. S.L.S. (aerials or aerial systems providing at least two radiation patterns, e.g. providing sum and difference patterns, H01Q25/00) · CPC title

• H04W4/40

  for vehicles, e.g. vehicle-to-pedestrians [V2P] · CPC title

• H04W4/06

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04W4/026

  using orientation information, e.g. compass · CPC title