Configuration protocol (DHCP) optimization for Wi-Fi connectivity in a network of moving things, for example, autonomous vehicles

Patent metadata

Field	Value
Publication number	US-11924904-B2
Application number	US-202117389815-A
Country	US
Kind code	B2
Filing date	Jul 30, 2021
Priority date	Aug 31, 2020
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

Systems and methods are provided for using dynamic host configuration protocol (DHCP) optimization for supporting Wi-Fi connectivity in a network of moving things. Wi-Fi connectivity of a mobile access point (MAP) configured for deployment within a vehicle may be managed, with the managing including applying, in one or both of the mobile access point (MAP) and a dynamic host configuration protocol (DHCP) server, one or more timing measures for shortening an amount of time needed to obtain a DHCP lease associated with at least one of a plurality of Wi-Fi access points in the network, and one or more optimization measures for optimizing at least one parameter used by the mobile access point (MAP) to secure DHCP lease for connecting to a particular Wi-Fi access point from the plurality of Wi-Fi access points.

First claim

What is claimed is:

1. A method for supporting dynamic host configuration protocol (DHCP) optimization for Wi-Fi connectivity in a network of moving things, the method comprising:
managing Wi-Fi connectivity of mobile access point (MAP) configured for deployment within a vehicle, the managing comprising applying in one or both of the mobile access point (MAP) and a dynamic host configuration protocol (DHCP) server:
one or more timing measures for shortening an amount of time needed to obtain a DHCP lease associated with at least one of a plurality of Wi-Fi access points in the network; and
one or more optimization measures for optimizing at least one parameter used by the mobile access point (MAP) to secure a DHCP lease for connecting to a particular Wi-Fi access point from the plurality of Wi-Fi access points;

wherein applying the one or more timing measures comprises use of coordinated peer DHCP lease resolution, and wherein the use of coordinated peer DHCP lease resolution comprises:
determining when the mobile access point (MAP) is within a plurality of mobile access points moving in sequence; and
when one mobile access point of plurality of mobile access points succeeds in connecting to a Wi-Fi access point, negotiating by the one mobile access point DHCP leases on behalf of one or more other ones of the plurality of mobile access points.

2. The method of claim 1 , wherein optimizing the at least one parameter comprises reducing amount of time the at least one parameter is kept reserved by the DHCP server for use by the mobile access point (MAP) when connecting to the particular Wi-Fi access point.

3. The method of claim 1 , wherein the at least one parameter comprises an Internet Protocol (IP) address reserved for use in conjunction with the DHCP lease for connecting to the particular Wi-Fi access point.

4. The method of claim 1 , wherein applying the one or more timing measures comprises use of parallel DHCP transactions on network re-connection, and wherein the use of parallel DHCP transactions comprises:
determining when connecting to a Wi-Fi access point whether the mobile access point (MAP) previously connected to the Wi-Fi access point;
when re-connecting to the Wi-Fi access point, determining whether a DHCP lease previously obtained when connected to the Wi-Fi access point is still valid; and
when the previously obtained DHCP lease is still valid, using a shortened negotiation process for connecting to the Wi-Fi access point.

5. The method of claim 1 , wherein applying the one or more timing measures comprises use of predicting DHCP resolution time based on historical data, and wherein the use of predicting DHCP resolution time based on historical data comprises:
determining based on historical data connection time predictions for one or more of the plurality of Wi-Fi access points when within communication range of the mobile access point (MAP); and
selecting based on the connection time predictions between the one or more of one or more of the plurality of Wi-Fi access points.

6. The method of claim 5 , further comprising generating at least a portion of the historical data based previous connections of the mobile access point (MAP).

7. The method of claim 1 , further comprising determining the one or more other ones of the plurality of mobile access points based on preset selection criteria, wherein the preset selection criteria comprise connecting to the Wi-Fi access point within predefined period of time.

8. The method of claim 1 , wherein applying the one or more optimization measures comprises use of DHCP server optimization based on data collection, and wherein the use of DHCP server optimization based on data collection comprises adjusting default DHCP lease time based on historical data, wherein the historical data is collected from a plurality of mobile access points.

9. A system for supporting dynamic host configuration protocol (DHCP) optimization for Wi-Fi connectivity in a network of moving things, the system comprising:
a mobile access point (MAP) configured for deployment within a vehicle, the mobile access point (MAP) comprising:
at least one communication circuit configured to communicate signals for transmission and reception of data;
at least one storage circuit configured to store instructions and data; and
at least one processing circuit configured to, based at least in part on instructions and/or data stored in the at least one storage circuit, manage Wi-Fi connectivity of mobile access point (MAP) via the at least one communication circuit, the managing comprising applying, independently or in conjunction with a dynamic host configuration protocol (DHCP) server associated with the network:
one or more timing measures for shortening an amount of time needed to obtain a DHCP lease associated with at least one of a plurality of Wi-Fi access points in the network; and
one or more optimization measures for optimizing at least one parameter used by the mobile access point (MAP) to secure DHCP lease for connecting to a particular Wi-Fi access point from the plurality of Wi-Fi access points;

wherein applying the one or more timing measures comprises use of coordinated peer DHCP lease resolution, and wherein the at least one processing circuit is configured to, when performing the use of coordinated peer DHCP lease resolution, perform based on determination that the mobile access point (MAP) is within a plurality of mobile access points moving in sequence one or both of:
negotiating DHCP leases associated with a Wi-Fi access point on behalf of one or more other ones of the plurality of mobile access points, based on a success connection by the mobile access point (MAP) to the Wi-Fi access point; and
using DHCP lease negotiated by other one mobile access point (MAP) of the plurality of mobile access points based on a success connection by the other one mobile access point (MAP) to the Wi-Fi access point.

10. The system of claim 9 , wherein applying the one or more timing measures comprises use of parallel DHCP transactions on network re-connection, and wherein the at least one processing circuit is configured to when performing the use of parallel DHCP transactions:
determine when connecting to a Wi-Fi access point whether the mobile access point (MAP) previously connected to the Wi-Fi access point;
when re-connecting to the Wi-Fi access point, determine whether a DHCP lease previously obtained when connected to the Wi-Fi access point is still valid; and
when the previously obtained DHCP lease is still valid, use a shortened negotiation process for connecting to the Wi-Fi access point.

11. The system of claim 9 , wherein applying the one or more timing measures comprises use of predicting DHCP resolution time based on historical data, and wherein the at least one processing circuit is configured to when performing the use of predicting DHCP resolution time based on historical data:
determine based on historical data connection time predictions for one or more of the plurality of Wi-Fi access points when within communication range of the mobile access point (MAP); and
select based on the connection time predictions between the one or more of one or more of the plurality of Wi-Fi access points.

12. The system of claim 11 , wherein the at least one processing circuit is configured to generate at least a portion of the historical data based previous connections of the mobile access point (MAP).

13. The system of claim 9 , wherein applying the one or more optimization measures comprises use of DHCP server optimization based on data collection, and wherein the at least one processing circuit is configured t

Assignees

• Veniam Inc

Inventors

• Perrone Hernán
• Cerqueira Lídia Miguel Barros
• Da Silva Pedro Samuel Nunes
• Moreira André Manuel Longo

Classifications

• H04W76/25 Primary

  Maintenance of established connections · CPC title

• H04L61/5014 Primary

  using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP] · CPC title

• H04W24/02

  Arrangements for optimising operational condition · CPC title

• H04W84/005

  Moving wireless networks · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title