Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
US5204876A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Mar 13, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is provided for transmitting spread spectrum signals. The transmitter receives data bits at a particular rate. Subsequently, the transmitter encodes the received data bits at a predetermined encoding rate into data symbols. Subsequently, the transmitter derives predetermined length orthogonal codes from the data symbols. The transmitter accommodates variable received data bit rates by setting the predetermined encoding rate and the predetermined orthogonal code length in response to the received data bit rate. Subsequently, the transmitter spreads the derived orthogonal codes with a user PN spreading code. An alternative method and apparatus is provided for transmitting spread spectrum signals. The transmitter receives data bits at a particular rate. Subsequently, the transmitter encodes the received data bits at a predetermined encoding rate into data symbols. Subsequently, the transmitter determines a particular channel to transmit the data symbols by spreading the data symbols with a predetermined length orthogonal code. The transmitter accommodates variable received data bit rates by setting the predetermined encoding rate and the predetermined orthogonal…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.