Device and method of designating spreading code for forward common channel
US6870824B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1999 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Apr 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2628
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A CDMA communication system transmits packet data via a designated forward channel which uses a particular spreading code, in the case where a base station has the packet data to send to a mobile station while the mobile sation does not have a dedicated channel established. A base station includes a first channel transmitter for transmitting a control message including information representative of a spreading code for designating a specific forward common channel to a specific mobile station, to the mobile station via a forward common channel, and a second channel transmitter for spreading user data with the spreading code upon reception of a response to the control message and transmitting the spread user data. A mobile station includes a control message analyzer for analyzing a message including information representative of a designated spreading code received via a forward common channel, and a forward common channel receiver for despreading user data spread with the designated spreading code generated based on the information, using the spreading code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.