Radio link management based on retransmission request performance
First Claim
1. A method of managing radio link assignments for a mobile station in a mobile communication network comprising:
- receiving information from one or more radio base stations indicating the number or frequency of retransmission requests sent by the radio base stations to the mobile station responsive to packet data transmissions from the mobile station;
modifying the radio link assignments for the mobile station based on said information.
1 Assignment
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Accused Products
Abstract
A wireless communication network receives packet data transmissions from a mobile station, tracks the occurrence of retransmission requests sent to the mobile station responsive thereto, and modifies the radio link assignments for the mobile station based at least in part on said tracking. For example, a base station controller may be configured to manage the active set of a mobile station based on the number and/or frequency of NACK messages sent by the radio base stations in the mobile station'"'"'s active set(s) responsive to packet data transmissions from the mobile station. The ACK/NACK response of a radio base station to mobile station transmissions may be used to detect link imbalance, identify poor reverse link channels, etc. The base station controller can add or change radio links based on the ACK/NACK response to improve reverse link performance, trigger voice call handoff, correct link imbalance, etc.
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Citations
34 Claims
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1. A method of managing radio link assignments for a mobile station in a mobile communication network comprising:
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receiving information from one or more radio base stations indicating the number or frequency of retransmission requests sent by the radio base stations to the mobile station responsive to packet data transmissions from the mobile station;
modifying the radio link assignments for the mobile station based on said information. - View Dependent Claims (2)
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3. A method of improving communication performance in a wireless communication network comprising:
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receiving packet data transmissions from the mobile station;
sending corresponding retransmission requests to the mobile station as needed; and
changing radio link assignments for the mobile station based at least in part on tracking occurrences of the retransmission requests. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A radio link management circuit for use in a base station system of a wireless communication network, the radio link management circuit comprising one or more processing circuits configured to:
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track occurrences of retransmission requests sent to a mobile station responsive to receiving packet data transmissions from the mobile station;
change radio link assignments for the mobile station based at least in part on tracking the occurrences of the retransmission requests. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of improving communication performance in a wireless communication network comprising:
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assigning one or more forward radio links and one or more reverse radio links to communicate with a mobile station; and
changing the radio link assignments for the mobile station based at least in part on tracking the occurrence of retransmission requests sent to the mobile station responsive to receiving packet data transmissions from the mobile station over one or more currently assigned reverse radio links. - View Dependent Claims (30, 31)
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32. A method of radio link management at a mobile station comprising:
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receiving retransmission requests from a network receiving packet data transmission from the mobile station;
tracking the incidence of retransmission requests received from the network; and
initiating a change by the network in the mobile station'"'"'s radio link assignments responsive to said tracking. - View Dependent Claims (33, 34)
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Specification