Method and system for performing distributed outer loop power control in wireless communication networks
First Claim
1. A method for performing distributed outer loop power control in a wireless communication network, comprising the steps of:
- determining a transmit power for a plurality of transmitting nodes such that signals sent from each of the transmitting nodes are received at a receiver associated with a receiving node at a predetermined signal-to-interference plus noise ratio (SINR) set point;
increasing the SINR set point at the receiving node of one or more transmitting nodes of the plurality of transmitting nodes if a total received power at a front end of the receiver associated with the receiving node is below a saturation power of the receiver minus a safety margin; and
decreasing the SINR set point at the receiving node of the one or more transmitting nodes of the plurality of transmitting nodes if the total received power at the front end of the receiver associated with the receiving node is within the safety margin of the saturation power of the receiver.
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Abstract
A method and system for performing distributed outer loop power control in a wireless communication network are disclosed. The method includes the steps of determining a transmit power for a plurality of transmitting nodes such that signals sent from each of the transmitting nodes are received at a receiver associated with a receiving node at a predetermined signal-to-interference plus noise ratio (SINR) set point, increasing the SINR at the receiving node of one or more transmitting nodes of the plurality of transmitting nodes if a saturation value for a front end of the receiver associated with the receiving node is not near a predetermined saturation value, and decreasing the SINR at the receiving node of the one or more transmitting nodes of the plurality of transmitting nodes if the saturation value for the front end of the receiver associated with the receiving node is near the predetermined saturation value.
57 Citations
20 Claims
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1. A method for performing distributed outer loop power control in a wireless communication network, comprising the steps of:
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determining a transmit power for a plurality of transmitting nodes such that signals sent from each of the transmitting nodes are received at a receiver associated with a receiving node at a predetermined signal-to-interference plus noise ratio (SINR) set point; increasing the SINR set point at the receiving node of one or more transmitting nodes of the plurality of transmitting nodes if a total received power at a front end of the receiver associated with the receiving node is below a saturation power of the receiver minus a safety margin; and decreasing the SINR set point at the receiving node of the one or more transmitting nodes of the plurality of transmitting nodes if the total received power at the front end of the receiver associated with the receiving node is within the safety margin of the saturation power of the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for performing distributed outer loop power control in a cellular communication network, comprising the steps of:
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determining a transmit power for a plurality of mobile units such that signals sent from each of the mobile units are received at a receiver associated with a base station at a predetermined signal-to-interference plus noise ratio (SINR) set point; increasing the SINR set point at the base station receiver of one or more of the mobile units if a total received power at a front end of the base station receiver is below a saturation power of the receiver minus a safety margin; and decreasing the SINR set point at the base station receiver if the saturation value for the front end of the base station receiver is within the safety margin of the saturation power of the receiver. - View Dependent Claims (12)
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13. A wireless communication system, comprising:
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a plurality of nodes including at least one receiving node and a plurality of transmitting nodes, each transmitting node of the plurality of transmitting nodes communicatively coupled to the at least one receiving node, wherein the at least one receiving node is configured to; receive a signal transmitted by at least one transmitting node of the plurality of transmitting nodes; and the at least one transmitting node of the plurality of transmitting nodes is configured to; determine a transmit power such that signals sent from the at least one transmitting node is received at the at least one receiving node at a predetermined SINR set point; increase the SINR set point at the at least one receiving node if a total received power at a front end of the receiver associated with the receiving node is below a saturation power of the receiver minus a safety margin; and decrease the SINR set point at the at least one receiving node if the total received power at the front end of the receiver associated with the receiving node is within the safety margin of the saturation power of the receiver. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification