Method and system of link control
First Claim
1. A method of link load control in a communications system using automatic repeat request, the method characterized in that transmission power is controlled including determining at least two targets, the first target being related to a target received signal strength, interference level or noise level, and the second target being related to a block error rate, and in that one or more signals carrying information on a set of second targets are transmitted to the user equipment from a radio access network.
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Accused Products
Abstract
The present invention relates to retransmissions in a communications system and more especially it relates to link load control in a cellular mobile radio system particularly in a Universal Mobile Telecommunications System, UMTS. BLER targets are set depending on load.
54 Citations
23 Claims
- 1. A method of link load control in a communications system using automatic repeat request, the method characterized in that transmission power is controlled including determining at least two targets, the first target being related to a target received signal strength, interference level or noise level, and the second target being related to a block error rate, and in that one or more signals carrying information on a set of second targets are transmitted to the user equipment from a radio access network.
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11. A method of link load control in a communications system using automatic repeat request, the method characterized in that transmission power is controlled including determining at least two targets, the first target being related to a target received signal strength, interference level or noise level, and the second target being related to a block error rate, and in that one or more signals carrying selector information for selection of a second target from a set of second targets are transmitted to the user equipment from a radio access network.
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12. A method of link load control in a communications system using automatic repeat request, the method characterized in that transmission power is controlled including determining at least two targets, the first target being related to a target received signal strength, interference level or noise level, and the second target being related to a block error rate, and in that one or more signals carrying a selected second target from a set of second targets are transmitted to the user equipment from a radio access network.
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13. A method of link load control in a communications system using automatic repeat request, the method characterized:
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in that transmission power is controlled including determining at least two targets, the first target being related to a target received signal strength, interference level or noise level, and the second target being related to a block error rate; in that for downlink load control a user equipment determines the first target depending on the difference between the selected second target and an actual value, corresponding to the second target, estimated from downlink data transmission; and in that one or more signals are broadcast.
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14. A first network element in a communication system using automatic repeat request, the first network element comprising:
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means for link load control including means for determining at least two targets, the first target being related to a target received signal strength and the second target being related to a block error rate; means for uplink load monitor of offered traffic load; means for reception of first measurement data; means for comparing offered traffic load and first measurement data; means for delivering a second target selector signal depending on the outcome of the comparison of the offered traffic load and the first measurement data; and means for determining the first target depending on the relation between the second target and the second measurement data. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification