Radio transmitting apparatus and radio transmitting method
US8111639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2006 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Mar 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0891
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radio transmitting apparatus and a radio transmitting method wherein the increase of the guard time in a random access region is reduced to secure the data transmitting region of an upstream line. In this apparatus, when a received signal power estimated by a received signal power estimating part (205) is the higher, a RACH format selecting part (206) selects a RACH format having the longer frame length. Contrarily, when a received signal power estimated by the received signal power estimating part (205) is the lower, the RACH format selecting part (206) selects a RACH format having the shorter frame length. A RACH data part arranging part (207) appropriately selects, in accordance with the selected RACH format, top-priority information, such as terminal identifiers, priority information, such as connection request information or band assignment request information, and non-priority information and arranges RACH data parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.