Patent · US Active

Route maintenance and update based on connection identifier in multi-hop relay systems

US8107408B2 · kind B2 · utility

16Cited by

2References

17Claims

0Family size

Assignee

Nokia Siemens Networks GmbH & Co. KG · DE

Inventors

Aik Chindapol · Washington, US
Junjik Bae · Evanston, US
Michael Behrendt · Randersacker, DE

Key dates

Filing date	Aug 8, 2007
Grant date	Jan 31, 2012
Priority date	—
Expiry date	Dec 30, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04W40/24
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Connection ID (CID) assignment in multi-hop relay system can be used to perform routing. Using CID assignment as routing information in a multi-hop wireless relay system to maintain the routing structure is disclosed. In a CID cache scheme, a base station builds a CID cache based on the upstream packet and broadcasts the CID cache to a relay station. The CID cache comprises CIDs along with routing information. Based on CID cache the spanning tree of the routing can be reconstructed. A hierarchical CID assignment is disclosed wherein a base station assigns a range of CIDs to a relay station. A relay station can recognize its data packets and forward them to corresponding mobile stations. Maintaining routing automatically along with CID assignment is also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.