Code division multiple access system having improved pilot channels
US7286500B1 · kind B1 · utility
21Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2000 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Sep 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/325
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a CDMA network, each mobile is arranged to combined pilot symbols from its dedicated pilot channel with pilot symbols from at least one common channel as an input to its channel impulse response sensing means. The common channel may be a BCH, a FACH or a PCH, and the pilot symbols on all such channels may be combined. The pilot energy required on each dedicated pilot channel can thereby be reduced. By communicating the quality of the received pilot symbols to a base station, the base station can reduce the energy on the dedicated pilot channel, providing a yet further saving of energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.