Method and system for estimating adaptive combined channel in CDMA system based on time division duplex system
US8320353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method and system for estimating an adaptive joint channel in a CDMA system based on TDD. The method includes the steps of a) receiving activity information of a mobile terminal; b) parsing the activity information, and transmitting a midamble sequence to the mobile terminal when a result of the parsing shows that the mobile terminal is in an ON state; c) conducting adaptive joint channel estimation by using the midamble sequence in the mobile terminal; and d) conducting adaptive joint detection by using a channel impulse response of the mobile terminal, obtained as a result of conducting the adaptive joint channel estimation. The method and system decreases the complexity in channel estimation and additionally increases the accuracy of channel estimation by reducing transmission power consumption and eliminating unnecessary interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.