Methods and apparatus for signaling data rate option information
US7894324B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2005 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Mar 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/21
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless terminal includes an uplink rate option indicator in the same uplink channel segment with data, the rate option indicator providing transmission rate information about the data transmitted in the segment. The indicator value is represented by an energy pattern within the segment. Different energy patterns correspond to different indicator values. The number of indicator values is less than the number of possible uplink data rate options supported by the wireless terminal. A single indicator value represents different uplink data rate options, at different times, as a function of a received maximum data rate option and/or type of assignment message. The maximum data rate option and/or assignment message was transmitted by the same base station receiving the indicator value; therefore, there is no ambiguity between wireless terminal and base station as to the interpretation of the uplink data rate option indicator value with respect to an individual uplink segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.