Code division multiple access communication method using dynamic code assignment, and a base station performing the method
US6804216B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Sep 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
It is desired to carry out CDMA communication using an optimum spread code for minimizing inter-channel interference according to communication conditions. For this purpose, under condition that a communication area covered by a base station is variable, notification of spread code reassignment is issued while communication is being made between the base station and a mobile terminal. Thereafter, a currently assigned spread code is changed so as to reduce interference between a channel used for communication in progress and another channel. In spread code reassignment, an adjustment is made to provide the same long code for channels which would otherwise incur significant interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.