Method of increasing the capacity of a CDMA network, and associated units
US6459694B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jan 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/004
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention provides a method of increasing by M, where M is any integer, the number N, where N is any integer greater than or equal to 2, of calls set up between a central unit and remote units of a code division multiple access network, N first group calls plus M second group calls being able to be set up simultaneously in this way and each using an internal spreading code and an external scrambling code. In accordance with the invention, first interference caused by first group calls in each second group call is synthesized and the first synthesized interference caused by first group calls is subtracted from each second group call. Similarly, a first interference caused by second group calls in each first group call is synthesized, and the first synthesized interference caused by second group calls is subtracted from each first group call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.