METHODS AND SYSTEMS FOR PRE-ALLOCATING A CQI CHANNEL DURING HANDOFF
First Claim
Patent Images
1. A method for wireless communication comprising:
- sending a handover request to a serving base station for handover to a target base station;
receiving a response to the handover request, the response including an indication of an assigned location within an uplink sub-frame for transmitting channel quality information (CQI) to the target base station; and
transmitting the CQI to the target base station at the assigned location.
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Accused Products
Abstract
Methods and systems for improving handover performance by pre-negotiating channel quality information between a serving base station and a target base before a handoff is initiated in a wireless communication system are described. The target base station may send to the serving base station an assigned location within an uplink subframe for a mobile station requesting a handover to the target base station to transmit channel quality information to the target base station. The serving base station may send this information to the mobile station. The mobile station may transmit channel quality information to the target base station at the assigned location.
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Citations
40 Claims
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1. A method for wireless communication comprising:
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sending a handover request to a serving base station for handover to a target base station; receiving a response to the handover request, the response including an indication of an assigned location within an uplink sub-frame for transmitting channel quality information (CQI) to the target base station; and transmitting the CQI to the target base station at the assigned location. - View Dependent Claims (2, 3)
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4. A method for wireless communication by a target base station comprising:
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sending, to a serving base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; receiving the CQI from the mobile station at the assigned location; and transmitting data to the mobile station in accordance with a modulation and coding scheme (MCS) selected based on the CQI. - View Dependent Claims (5, 6)
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7. A method for wireless communication by a serving base station comprising:
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receiving, from a target base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; sending the assigned location to the mobile station; receiving a handover indication that the mobile station is to handover to the target base station; and releasing the mobile station. - View Dependent Claims (8, 9, 10)
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11. An apparatus for wireless communication comprising:
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logic for sending a handover request to a serving base station for handover to a target base station; logic for receiving a response to the handover request, the response including an indication of an assigned location within an uplink sub-frame for transmitting channel quality information (CQI) to the target base station; and logic for transmitting the CQI to the target base station at the assigned location. - View Dependent Claims (12, 13)
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14. An apparatus for wireless communication by a target base station comprising:
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logic for sending, to a serving base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; logic for receiving the CQI from the mobile station at the assigned location; and logic for transmitting data to the mobile station in accordance with a modulation and coding scheme (MCS) selected based on the CQI. - View Dependent Claims (15, 16)
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17. An apparatus for wireless communication by a serving base station comprising:
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logic for receiving, from a target base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; logic for sending the assigned location to the mobile station; logic for receiving a handover indication that the mobile station is to handover to the target base station; and logic for releasing the mobile station. - View Dependent Claims (18, 19, 20)
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21. An apparatus for wireless communication comprising:
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means for sending a handover request to a serving base station for handover to a target base station; means for receiving a response to the handover request, the response including an indication of an assigned location within an uplink sub-frame for transmitting channel quality information (CQI) to the target base station; and means for transmitting the CQI to the target base station at the assigned location. - View Dependent Claims (22, 23)
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24. An apparatus for wireless communication by a target base station comprising:
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means for sending, to a serving base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; means for receiving the CQI from the mobile station at the assigned location; and means for transmitting data to the mobile station in accordance with a modulation and coding scheme (MCS) selected based on the CQI. - View Dependent Claims (25, 26)
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27. An apparatus for wireless communication by a serving base station comprising:
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means for receiving, from a target base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; means for sending the assigned location to the mobile station; means for receiving a handover indication that the mobile station is to handover to the target base station; and means for releasing the mobile station. - View Dependent Claims (28, 29, 30)
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31. A computer-program product for wireless communication, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for sending a handover request to a serving base station for handover to a target base station; instructions for receiving a response to the handover request, the response including an indication of an assigned location within an uplink sub-frame for transmitting channel quality information (CQI) to the target base station; and instructions for transmitting the CQI to the target base station at the assigned location. - View Dependent Claims (32, 33)
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34. A computer-program product for wireless communication by a target base station, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for sending, to a serving base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; instructions for receiving the CQI from the mobile station at the assigned location; and instructions for transmitting data to the mobile station in accordance with a modulation and coding scheme (MCS) selected based on the CQI. - View Dependent Claims (35, 36)
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37. A computer-program product for wireless communication by a serving base station, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for receiving, from a target base station, an assigned location within an uplink sub-frame for a mobile station requesting a handover to the target base station to transmit channel quality information (CQI) to the target base station; instructions for sending the assigned location to the mobile station; instructions for receiving a handover indication that the mobile station is to handover to the target base station; and instructions for releasing the mobile station. - View Dependent Claims (38, 39, 40)
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Specification