Method and apparatus for time-sharing channelization code in a CDMA communication system
US6785250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70703
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Techniques to time-share a common channelization code among multiple terminals for compressed mode transmissions. Each terminal is initially assigned a respective channelization code used to channelize data transmitted in non-compressed frames for the terminal. A common channelization code used to channelize data transmitted in compressed frames for the terminals is also selected. Each compressed frame includes one or more compressed transmissions and all or a portion of a transmission gap. The compressed frames for the terminals are scheduled such that the compressed transmissions for the compressed frames do not overlap. Thereafter, non-compressed frames for each terminal are channelized with the channelization code assigned to the terminal, and compressed frames for the terminals are channelized with the common channelization code. The compressed frames may be scheduled to be (1) non-overlapping at their frame boundaries, (2) non-overlaping with respect to the compressed transmissions, and/or (3) interlaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.