Radio communication system and handoff method therefor
US6628631B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1999 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Mar 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Transmission information inputted to a plurality of radio base stations is encoded and then divided into a plurality of blocks in demultiplexers. Each of the blocks are spread with an orthogonal code, and is subjected to a determination in switches as to whether or not it can be transmitted. Outputs of the switches are again combined, spread with a PN code, and transmitted. A mobile station despreads a received signal with an orthogonal code and a PN code used in the transmission information to extract respective blocks which are multiplexed in a multiplexer, and encoded to extract the transmission information. With the foregoing configuration, a handoff is made in units of blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.