Uplink load control method and apparatus used in a wireless communication system
US9801091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2011 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Oct 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/343
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses schemes to perform load control taking uplink BLER statistics into account. An uplink load control method and apparatus are provided in a wireless communication system. The uplink load control method comprises estimating uplink load budget in a cell of the wireless communication system; determining whether the cell is over-loaded based on Block Error Rate (BLER) statistics of non-Guarded Bit Rate (non-GBR) users in the cell and/or Fast Congestion Control (FCC) action statistics in the cell; decreasing the uplink load budget if it is determined that the cell is over-loaded; and increasing the uplink load budget if it is determined that the cell is not over-loaded. Preferably, increasing or decreasing of the uplink load budget is based on the BLER stastics BLERstatistic of targeted users by FCC. By means of the BLER and FCC status, BLER of EUL users can be controlled in an acceptable range while maximizing the benefit of FCC in improving load utilization and consequently uplink throughput as much as possible. On the other hand, the uplink load control method can further comprises adjusting a RoT target RoTtgt, based on BLER statistics of Guarded Bit Ra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.