Resource reuse for 3G WOS
D.J.Y. Lee, M. Basmaji · 2003
The wireless office system (WOS) is gaining momentum in the wireless industry; how to use 3G resources effectively to deploy an optimized WOS system is the focus of our proposal. We first consider the concept and implementation of code reuse in 3G WOS. To compete with wireline and to ensure the success of wireline migration to wireless, the MOU needs to be substantially increased for both home and enterprise usage (in-building). The code reuse concept captures the idea of reusing the code for the enterprise network. This can resolve the intra cell interference issue. We then consider the timing offset reuse concept for resolving the inter cell interference issues. By combining these two factors, the capacity and available resource for enterprise can be increased multifold. We also discuss how a better location identification algorithm can be achieved through sharing these resources. The unique way of using cell breathing to identify a user is also discussed. A smaller timing offset is introduced for enterprise PN. This enables efficient deployment of in-building picocells. Inventions included in this proposal are CDMA radio resource reuse (include code reuse and time offset reuse) and an associated location algorithm for better performance and location identification in-building.