Transmitter directed code division multiple access system using multi-users diversity to maximize throughput while equitably providing access to users
First Claim
1. A method of communication between a plurality of users and a remote transmitting station over a plurality of communication links in a communication system, comprising:
- assigning each one of the plurality of users to at least one of the plurality of communication links;
assigning a scheduling metric to each one of said plurality of communication links;
selecting a number of said plurality of communication links for transmission of data for said communication based on said assigned scheduling metric.
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Accused Products
Abstract
A transmitter directed, distributed receiver using multi-user diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of communication links between a common transmitter and several users. The greater the variation in the quality of a particular link over time, the greater the increase in total system throughput provided. An scheduler metric (or scheduler metric) represents the instantaneous quality of the communication link between each user and the transmitter with respect to the average quality of the link. Alternatively, the scheduler metric represents the instantaneous channel condition with respect to the average data throughput over that channel. The common transmitting station uses the scheduler metric to directly compare the desirability of granting each channel access with the desirability of granting each other channel access. The users with links that have the greatest scheduler metric are provided access to the channels.
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Citations
26 Claims
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1. A method of communication between a plurality of users and a remote transmitting station over a plurality of communication links in a communication system, comprising:
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assigning each one of the plurality of users to at least one of the plurality of communication links;
assigning a scheduling metric to each one of said plurality of communication links;
selecting a number of said plurality of communication links for transmission of data for said communication based on said assigned scheduling metric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for communication between a plurality of users and a remote transmitting station over a plurality of communication links in a communication system, comprising:
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means for assigning each one of the plurality of users to at least one of the plurality of communication links;
means for assigning a scheduling metric to each one of said plurality of communication links;
means for selecting a number of said plurality of communication links for transmission of data for said communication based on said assigned scheduling metric. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification