Patent
Data transmission within a spread-spectrum communication system
Mark C. Cudak,Amitava Ghosh +1 more
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TLDR
In this paper, the reduction of the data rate between the base station (100) and remote units (113) occurs by changing the current OVSF codes utilized by both the remote units and the BS.Abstract:
Remote units (113) having large amounts of data to transmit will be dynamically assigned Orthogonal Variable Spreading Factor (OVSF) codes corresponding to higher data rates and remote units (113) with lower amounts of data to be transmitted will be assigned OVSF codes corresponding to lower data rates. The reduction of the data rate between the base station (100) and remote units (113) occurs by changing the current OVSF codes utilized by both the remote units (113) and the base station (100). In order to eliminate collisions among remote units transmitting data, a remote units transmission is advanced and retarded in time based on an amount of offset from a frame boundary.read more
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References
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Journal ArticleDOI
Tree-structured generation of orthogonal spreading codes with different lengths for forward link of DS-CDMA mobile radio
TL;DR: Tree-structured generation of orthogonal spreading codes with different lengths is presented for Orthogonal multiplexing of forward-link code-channels of different data rates in direct sequence code division multiple access DS-CDMA mobile radio.
Patent
Reverse link, closed loop power control in a code division multiple access system
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Patent
Method and apparatus for using orthogonal coding in a communication system
David D. Falconer,Fuyun Ling +1 more
TL;DR: In this paper, a method and apparatus for encoding and decoding of orthogonal codes is presented. But the method is not suitable for the decoding of large numbers of samples, and it is difficult to find a suitable encoding scheme for such groups.
Patent
Method and apparatus for providing mobile unit assisted hard handoff from a CDMA communication system to an alternative access communication system
TL;DR: In this article, a method and system for providing a reliable means to perform handoff from a code division multiple access (CDMA) system using a pilot signal to an alternative access communication technique system is presented.
Patent
Method and apparatus for power control in a communication system
TL;DR: In this article, a power adjustment command is transmitted to the remote unit, instructing it to adjust its power accordingly, and an instantaneous threshold value is created based on frame-quality information and the target threshold.