Method and apparatus for congestion control in a wireless communication system
US7961616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Nov 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for congestion control in a wireless communication system. Individual target data rate values are assigned individual access terminals. The individual data rates of the access terminals are adjusted to achieve the corresponding individual target data rate values. If the target values are not achieved within a predetermined number of iterations, the individual data rate is adjusted. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, wherein the status of the congestion bit is determined by comparing a congestion parameter to a predetermined threshold. One embodiment implements an outerloop threshold having a margin with respect to the desired congestion metric threshold. According to one embodiment, a congestion indicator includes multiple bits, wherein at least one bit instructs the mobile station to use target values or else to adjust without regard to a target value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.