Radio link management based on retransmission request performance
First Claim
1. A method of improving communication performance in a wireless communication network comprising:
- receiving packet data transmissions on each of one or more currently assigned reverse radio links at the network 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 at the network by changing a forward radio link assignment if the relative counts of retransmission requests for the currently assigned reverse radio links indicate a forward/reverse radio link imbalance.
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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.
29 Citations
24 Claims
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1. A method of improving communication performance in a wireless communication network comprising:
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receiving packet data transmissions on each of one or more currently assigned reverse radio links at the network 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 at the network by changing a forward radio link assignment if the relative counts of retransmission requests for the currently assigned reverse radio links indicate a forward/reverse radio link imbalance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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, wherein the packet data transmissions from the mobile station are received on each of one or more currently assigned reverse radio links; change radio link assignments for the mobile station based at least in part on tracking the occurrences of the retransmission requests by changing a forward radio link assignment if the relative counts of retransmission requests for the currently assigned reverse radio links indicate a forward/reverse radio link imbalance. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. 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 at the network 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 by changing a current forward radio link assignment responsive to determining that the relative incidence of retransmission requests among the currently assigned reverse radio links indicates a link imbalance. - View Dependent Claims (24)
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Specification