Inter-RAT handover to UTRAN with simultaneous PS and CS domain sevices
US7382750B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2003 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless device initially has simultaneous circuit switched (CS) and packet switched (PS) services with a non-UMTS network. With the CS and PS services ongoing, the non-UMTS network transmits a HANDOVER TO UTRAN COMMAND message to the wireless device to perform a handover to UTRAN procedure. The HANDOVER TO UTRAN COMMAND message excludes information used for handing over the PS signaling connections to the UTRAN so that only CS signaling connections are handed over. The wireless device receives and parses the HANDOVER TO UTRAN COMMAND message to determine what signaling connections are being handed over. Upon determining that only CS signaling connections are being handed over, a radio resource control (RRC) layer within the wireless device informs an upper layer within the wireless device that no PS radio access bearers or no PS signaling connections are present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.