Method and apparatus for control of soft handoff usage in radiocommunication systems
US6934546B1 · kind B1 · utility
16Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1998 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Aug 19, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/437
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Radiocommunication systems having improved soft handoff capabilities are described. During soft handoff a mobile station may have several transmission sources (active set members) supplying it with substantially the same information. Mobile stations which are not moving may not require as many sources to provide adequate received signal quality. Therefore, mobile stations which are not moving are identified using locating techniques and members of the active set are compared with a higher threshold to remove weaker branches more rapidly than when using a threshold that is applied to mobile stations that are in motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.