US 2008/0165736 A1Published application

Macro Diversity Handover and Fast Access Station Switching in Wireless Multi-User Multi-Hop Relay Networks

OwnerShengjie Zhao, Koon Hoo Teo +2inventors

InventorsShengjie Zhao, Koon Hoo Teo, Zhifeng Tao, Jinyun Zhang

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Abstract

Handover procedures and a collection of new handover MAC management messages are provided for a wireless mobile multi-bop relay (MMR) network. The types of handovers supported include macro diversity handover (MDHO) and fast access station switching (FASS). The handover procedures for these two types of handover and the MAC messages are described for nine main classes of network topologies. The nine classes of topology are further classified into to main categories, namely, intra multi-hop base station (MR-BS), when and where the handover is in the MMR cell, and inter MR-BS handover, when and where the handover is between two different MMR cells.

Claims23

Dependent claims

A method for macro diversity handover (MDHO) and fast access station switching (FASS) for a mobile station, and relay and base stations in a wireless multi-user multi-hop relay network, comprising the steps of:

performing network topology advertisement for the mobile station and the relay and base stations;
allocating scanning intervals to the mobile station according to the network topology advertisement;
exchanging handover management messages between the mobile station and the relay and base stations;
updating a diversity set for the mobile station communicating with a current anchor station;
selecting a target anchor station from the updated diversity set;
and
handing the mobile station over from the current anchor station to the target anchor station.

4 more elements

Dependencies are inferred from the claim text.