Data communication device and method for mobile communication system with dedicated control channel
US6438119B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2628
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A CDMA communication system provides a dedicated control channel capable of efficiently communicating control messages between a base station and a mobile station. In a dedicated control channel transmission device, a controller determines a frame length of a message to be transmitted and outputs a frame select signal corresponding to the determined frame length. A message generator generates frame data of the message to be transmitted according to the frame select signal. A transmitter spreads the frame data and transmitting the spread frame data through a dedicated control channel. In a dedicated control channel reception device, a despreader despreads a received signal. A first message receiver deinterleaves and decodes the despread signal in a first frame length to output a first message, and detects a first CRC corresponding to the decoded signal. A second message receiver deinterleaves and decodes the despread signal in a second frame length to output a second message, and detects a second CRC corresponding to the decoded signal. A controller selects one of the first and second messages according to first and second CRC detection results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.