Method and apparatus for broadcasting messages in channel reservation communication systems
US6349210B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Nov 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/004
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for broadcasting messages in accordance with the presentinvention transmits a broadcast message within a wireless communication system or network utilization of redundant Request-to-Send type or broadcast notice messages or packets BRTS). A source node repeatedly transmits a sequence of these messages over a system reservation channel with each message containing a sequence identifier. The sequence identifier of each succeeding message has a value immediately preceding the identifier of the previously transmitted broadcast notice message. A destination node receives the messages and determines the transmission time of the broadcast message based on each received message identifier. Subsequent transmission and reception of the final broadcast notice message in the sequence, the broadcast message is transmitted by the source node to the destination node over a data channel identified in the transmitted messages. The quantity of broadcast notice messages may be dynamically adjusted to maintain system performance at a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.