System and a method for increasing network efficiency in a 5G-V2X network

Patent metadata

Field	Value
Publication number	US-12096280-B2
Application number	US-202217689184-A
Country	US
Kind code	B2
Filing date	Mar 8, 2022
Priority date	Mar 8, 2022
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

Provided is a method and system for controlling data transmission in a 5G-V2X network. The 5G-V2X network has at least one defined geographical area including a plurality of traffic sensing devices (TSDs). Each of the TSDs is configured to provide data over one or more 5 G channels to a V2X processing system via an edge gateway module (EGW) of the defined geographical area. The EGW includes a transmission controller (TC). The method comprises the TC dynamically adjusting a data transmission frequency of at least one TSD of the plurality of TSDs in accordance with a transmission control policy.

First claim

The invention claimed is:

1. A method of controlling traffic data transmission in a fifth generation vehicle-to-everything (5G-V2X) wireless communication network, the method comprising:
provisioning a plurality of traffic sensing devices (TSDs) within at least one defined geographical area of the 5G-V2X network;
provisioning an edge gateway module (EGW) for the at least one defined geographical area to be in communication with the plurality of TSDs over one or more 5G channels of said 5G-V2X network; and
provisioning each of the TSDs to provide traffic data over the one or more 5G channels to a transmission controller (TC) via the EGW;
wherein the TC dynamically adjusts a traffic data transmission frequency of at least one TSD of the plurality of TSDs in accordance with a transmission control policy.

2. The method of claim 1 , wherein the transmission control policy is adjustable in response to one or both of: historical traffic data; and real-time traffic data.

3. The method of claim 2 , wherein the historical traffic data is processed to determine a general traffic data transmission frequency f g for the plurality of TSDs and the real-time traffic data is processed to determine a safe traffic data transmission frequency f s for the at least one TSD of the plurality of TSDs such that, where f s >f g , the traffic data transmission frequency f of the at least one TSD is adjusted to f=f s otherwise it remains as f=f g .

4. The method of claim 3 , wherein, in the event of a dangerous moving traffic object being detected within the defined geographical area, the real-time traffic data is processed to determine one or more temporary traffic data transmission frequencies f t for the plurality of TSDs or a subset of the plurality of TSDs comprising some or all of a set of source and target TSDs and, if f t >f g for the plurality of TSDs or the set of source and target TSDs, then the general traffic data transmission frequency for the plurality of TSDs or the set of source and target TSDs is updated to f t .

5. The method of claim 4 , wherein the method of updating the traffic data transmission frequency to the temporary traffic data transmission frequency f t is applied to only the target TSDs of the set of source and target TSDs using real-time traffic data from the target TSDs such that, once a predetermined parameter for the detected dangerous moving traffic object is met, the general traffic data transmission frequency f g for the target TSDs is reset to the normal general traffic data transmission frequency f g calculated by an empirical analyzer module.

6. The method of claim 3 , wherein, if a 5G-V2X network transmission delay d exceeds a predetermined, selected or calculated maximum delay value d max , then the method decreases the general traffic data transmission frequency f g for some or all of the plurality of TSDs to a new reduced value of traffic data transmission frequency f g_new until d<d max .

7. The method of claim 6 , wherein the method applies a limit in the decrease in the general traffic data transmission frequency f g such that f g_new ≥f g_old /2.

8. The method of claim 2 , wherein the transmission control policy is initially based on processing of historical traffic data and the resultant transmission control policy is dynamically adjusted based on subsequent processing of real-time traffic data.

9. The method of claim 1 , wherein each TSD of the plurality of TSDs and/or each group of TSDs of the plurality of TSDs has associated with it a respective transmission restriction module (TRM), each TRM being controlled to apply a determined or calculated transmission policy for its associated TSD or each TSD of its associated group of TSDs, the determined or calculated transmission policies comprising the transmission control policy.

10. The method of claim 9 , wherein the TRM collects data from its associated TSD and/or the TSDs of its associated group of TSDs and then transmits the received data over the one or more 5G channels to the TC in accordance with the determined or calculated transmission policy for its associated TSD or each TSD of its associated group of TSDs.

11. The method of claim 10 , wherein, for its associated TSD or the TSDs of its associated group of TSDs, the TRM counts down a waiting time for sending traffic data received at the TRM from a selected TSD in accordance with the selected TSD's determined or calculated transmission policy, then when receiving an updated transmission policy for the selected TSD, the TRM immediately updates the waiting time for sending traffic data in accordance with the updated transmission policy and sends the received traffic data on expiry of the updated waiting time, and then resets the waiting time for sending traffic data in accordance with the updated transmission policy for subsequently received data from the selected TSD.

12. A system for controlling traffic data transmission in a fifth generation vehicle-to-everything (5G-V2X) wireless communication network, the system comprising:
a plurality of traffic sensing devices (TSDs) located within at least one defined geographical area; and
an edge gateway module (EGW) of the at least one defined geographical area in communication with the plurality of TSDs over one or more 5G channels of the 5G-V2X network, each of the TSDs being configured to provide traffic data over the one or more 5G channels to a to a transmission controller (TC) via the EGW;
wherein the TC is configured to dynamically adjust a traffic data transmission frequency of at least one TSD of the plurality of TSDs in accordance with a transmission control policy.

13. The system of claim 12 , wherein the system includes a traffic data processor configured to process raw traffic data from the plurality of TSDs and to send structured traffic data to the TC, the structured traffic data including any one or more of: speed of moving traffic objects detected by each of the plurality of TSDs; location of each detected moving traffic object; timestamp for each detected moving traffic object; number of detected traffic alerts; location of each detected traffic alert; timestamp for each detected traffic alert; number of detected traffic accidents; location of each detected traffic accident; and timestamp for each detected traffic accident.

14. The system of claim 12 , wherein the TC comprises an empirical analyzer module for processing historical traffic data and/or a real-time analyzer module for processing real-time traffic data to adjust the transmission control policy and wherein the empirical analyzer module is configured to process the historical traffic data to determine a general traffic data transmission frequency f g for the plurality of TSDs, the real-time analyzer module is configured to process the real-time traffic data to determine a safe traffic data transmission frequency f s for the at least one TSD of the plurality of TSDs, and the TC is configured such that, where f s >f g , the TC adjusts the traffic data transmission frequency f of the at least one TSD to f=f s otherwise the TC maintains the traffic data transmission frequency f of the at least one TSD as f=f g .

15. The system of claim 14 , wherein the real-time analyzer module is configured to, in the event that the real-time analyzer module detects dangerous moving traffic object within the defined geographical area, to determine a temporary traffic data transmission frequency f t for the plurality of TSDs or a subset of the plurality of TSDs comprising some or all of a set of source and target TSDs and, if f t >f g for the plurality of TSDs or the set of source and tar

Assignees

• Hong Kong Applied Science & Tech Research Inst Co Ltd

Inventors

• Feng Jiashi
• Zhang Jianjun
• Chen Linhuan
• Zhou Zigan
• Chen Hang
• Su Dongzhe
• Fan Shijun

Classifications

• H04W4/40

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

• G08G1/0112

  from the vehicle, e.g. floating car data [FCD] · CPC title

• G08G1/012

  from other sources than vehicle or roadside beacons, e.g. mobile networks · CPC title

• H04W4/44

  for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] · CPC title

• H04L47/25

  with rate being modified by the source upon detecting a change of network conditions · CPC title