Capacity enhancement for multi-code CDMA with integrated services through quality of service and admission control
US7002920B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2001 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | May 24, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
With the addition of high-speed data traffic to traditional CDMA cellular networks, there is a need to efficiently utilize system capacity so that the quality of service of existing voice and low-speed data users is maintained while new high-speed data users are added to the network. Methods and systems are presented that control allocation of power to users, quality of service requirements, and/or user activity levels to enhance capacity utilization. These methods and systems are based on a method for estimating the capacity of a CDMA carrier with both voice and data users using an interference-based analysis of the reverse link. In particular, the methods enhance capacity utilization in a multi-code CDMA network architecture, in which several codes are allocated to a single high-speed data user for parallel transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.