Invention Grant
US08676131B2 Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
有权
用于允许利用正交信道结构的CDMA反向链路的软切换的方法和装置
- Patent Title: Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
- Patent Title (中): 用于允许利用正交信道结构的CDMA反向链路的软切换的方法和装置
-
Application No.: US13069174Application Date: 2011-03-22
-
Publication No.: US08676131B2Publication Date: 2014-03-18
- Inventor: James A. Proctor, Jr. , Pertti O. Alapuranen
- Applicant: James A. Proctor, Jr. , Pertti O. Alapuranen
- Applicant Address: US DE Wilmington
- Assignee: IPR Licensing, Inc.
- Current Assignee: IPR Licensing, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- Main IPC: H04B1/00
- IPC: H04B1/00

Abstract:
Method and apparatus for base stations and subscriber units allows soft handoff of a CDMA reverse link utilizing an orthogonal channel structure. Subscriber units transmit an orthogonally coded signal over a reverse link to the base stations. A given base station provides timing control of the timing offset of the reverse link signal. Based on at least one criterion, an alignment controller determines that the given base station should hand off timing control to another base station, and a soft handoff process ensues. In response to a command or message for soft handoff of the subscriber unit from the given base station to another base station, the subscriber unit makes a coarse timing adjustment to the timing of the coded signal. The subscriber unit may make fine timing adjustments based on feedback from the base station controlling timing. Multiple base stations may provide power control feedback to the subscriber unit.
Public/Granted literature
Information query