Efficient cell measurements during transmission gaps in a compressed mode
US7649869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2006 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Feb 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A terminal obtains a monitored set containing GSM neighbor cells and/or UMTS neighbor cells. The terminal operates in a compressed mode and obtains from a UMTS network at least two transmission gap pattern sequences for different measurement purposes, e.g., for “GSM carrier RSSI measurements” (GAP1), “GSM initial BSIC identification” (GAP2), and “GSM BSIC re-confirmation” (GAP3). The terminal makes RSSI measurements for the GSM cells using multiple transmission gap pattern sequences, e.g., using GAP1, GAP2 and GAP3. The terminal identifies the BSIC for at least one GSM cell by (1) detecting the tone on the FCCH using multiple transmission gap pattern sequences, e.g., using GAP2 and GAP3, and (2) decoding the SCH using multiple transmission gap pattern sequences, e.g., using GAP2 and GAP3. The use of multiple transmission gap pattern sequences for RSSI measurement and BSIC identification allows the terminal to complete the cell measurements and send a report sooner, which may improve performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.