Communication of redundant SACCH slots during discontinuous transmission mode for VAMOS
US8737324B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2010 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The application relates to a method for communication from a second mobile station to a base station or vice versa. In a given multiframe, a first SACCH slot associated with the second mobile station is communicated (i.e. received or transmitted or both) via the second VAMOS subchannel. In the same multiframe, a redundant second SACCH slot associated with the second mobile station is communicated. The communicating step is performed either by the second mobile station or by the base station. The second SACCH slot may be communicated via the second VAMOS subchannel, in case the second VAMOS subchannel is in DTX mode. In an alternative embodiment, the second SACCH slot may be communicated via a first VAMOS subchannel, in case the first VAMOS subchannel is in DTX mode, wherein the first and second VAMOS subchannels share a common time slot and have the same carrier frequency. Both embodiments may be combined: I.e. in case the second VAMOS subchannel is in DTX mode, the second SACCH slot is communicated via the second VAMOS subchannel, and in case the first VAMOS subchannel is in DTX mode, the second SACCH slot may be communicated via the first VAMOS subchannel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.