Mobile communications system, radio network controller, and active set control method
US7583966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | May 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An active set control method for handover operation in a CDMA communications system in which propagation conditions of an uplink channel and a downlink channel for an access link of cell are different, provides that when a cell is deleted from the active set based on a request of a base station which has detected a degraded signal of the uplink channel, a predetermined period of time is to be counted for inhibiting addition of the same cell in the active set based on a request of a mobile terminal which has detected a satisfied signal of the downlink channel, thereby preventing the deletion and addition of the cell in the active set from successive operations in a short time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.