US 10,952,243 B2Granted

Method, system and device for network communications within a vehicle

AssigneeNIO USA, Inc.

InventorsYongbum Kim, Stephen Eric Sidle, Luna Chen, Jerry L. Petree, Suma Prabhakara, George T. Feltovich

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Abstract

Embodiments of the present disclosure are directed to vehicle communication systems, in particular, toward contention resolution on a shared medium in vehicle communication systems. The present disclosure can provide a modified version of the Institute of Electrical and Electronics Engineers (IEEE) 802.3 standard to handle physical layer (PHY), and data link layer's (DLL) media access control (MAC) of the wired communication links in the vehicle communication subsystem utilizing a shared medium and half-duplex mode. As a result, the modified MAC and PHY may provide fair access and deterministic latency for shared access to the medium of vehicle communication systems independent of the offered network load.

Claims20

Dependent claims

A method of communicating over a network, comprising:

providing a plurality of data terminal equipment (DTE) to the network;
providing each of the plurality of DTEs with data for transmission on the network, wherein the network is limited to convey the data from one DTE at a time, wherein data transmitted from two or more DTEs results in a data collision state;
substantially simultaneously transmitting data by a first DTE of the plurality of DTEs and a second DTE of the plurality of DTEs;
receiving, by the second DTE, a collision signal indicating the data collision state, wherein the first DTE continues transmitting;
in response to the data collision state, causing the second DTE to initiate a backoff process, wherein the backoff process comprises a determination of a backoffLimit having a value randomly selected as zero or one;
transmitting data, by the second DTE, upon selecting the backoffLimit with a value of zero;
and
waiting to transmit data, by the second DTE, upon selecting of the backoffLimit with a value of one, whereby the second DTE waits a period of time associated with a slot time and wherein the slot time is determined as a time for one bit to be transmitted or received by a media access control (MAC) of the second DTE.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/380,612Filed 10 Apr 2019 · us provisional application
Priority: 10 Apr 2018
Published: US 2019/0313446 A110 Oct 2019
Granted: 16 Mar 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04W 74/02
Wireless channel access: hybrid access
G05D 1/00
Control of position, course, altitude or attitude of land, water, air or
H04L 12/4035
With centralised control, e.g. polling: in which slots of a TDMA packet structure are assigned based on a contention resolution carried out at a…
H04W 4/48
For vehicles, e.g. vehicle-to-pedestrians [V2P]: for in-vehicle communication