Method and apparatus for uplink timing synchronization with ranging signal in mobile communication system
US8600420B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 8, 2006 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Mar 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2646
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
When a base station of a time division duplex based mobile communication system receives an initial ranging request signal from a subscriber station, the base station generates initial ranging information including delay time information to the subscriber station, and receives uplink data delayed and transmitted using a delay time from the subscriber station. Also, when the subscriber station transmits an initial ranging request signal to the base station and receives initial ranging information including delay time information from the base station, the subscriber station establishes a transmission parameter value by using the transmission parameter value included in the initial ranging information and transmits uplink data by using the established delay time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.