Crucial control message transmission method and systems
US6496496B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is an apparatus and method of increasing the likelihood of successful and quick reception of messages containing crucial data in a CDMA cellular communication system. The data may be transmitted at a lower frame rate than normal messages but at the same power level as used for normal messages in full rate frames to raise the signal to noise ratio at the receiver. An abbreviated version of the message containing only the critical parameters may be sent to lessen the likelihood of a bit being incorrectly decoded as well as shortening both the time of transmission and receipt. The two approaches may be combined and the abbreviated message may be supplemental to the normal message. Specifically, the use of a short version of a handoff direction message using only the parameters required for a soft-handoff between cells within a system is described in detail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.