Device and method for implementing handoff in mobile communication system
US6667961B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A handoff implementing device and method in a mobile communication system. The handoff implementing device including a base station transmitter and a mobile station receiver. The base station transmitter divides a given frame period into a transmission period and a non-transmission period, separates frame data in the frame period into first and second data, spreads the first and second data by different orthogonal codes, and transmits the spread signal in the transmission period. The mobile station receiver receives the first and second data spread by the different orthogonal codes in the transmission period, assembles the first and second data into the frame data, and searches for an adjacent base station to which a call is handed off in the non-transmission period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.