Capacity enhancement for multi-code CDMA with integrated services through quality of services and admission control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6278701
SERIAL NO

09113551

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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With the addition of high-speed data traffic to traditional CDMA cellular networks, there is a need to efficiently utilize system capacity so that the quality of service of existing voice and low-speed data users is maintained while new high-speed data users are added to the network. Methods and systems are presented that control allocation of power to users, quality of service requirements, and/or user activity levels to enhance capacity utilization. These methods and systems are based on a method for estimating the capacity of a CDMA carrier with both voice and data users using an interference-based analysis of the reverse link. In particular, the methods enhance capacity utilization in a multi-code CDMA network architecture, in which several codes are allocated to a single high-speed data user for parallel transmission.

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Patent Owner(s)

  • UNIVERSITY OF MARYLAND, BALTIMORE;VERIZON LABORATORIES INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ayyagari, Deepak Arlington, MA 44 1386
Ephremides, Anthony Bethesda, MD 11 798
Resheff, Samuel Newton, MA 2 434

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