POWER CONTROL FOR POINT-TO-MULTIPOINT SERVICES PROVIDED IN COMMUNICATION SYSTEMS
First Claim
1. A method for power control for point-to-multipoint services in a communication system, comprising:
- determining at each subscriber station belonging to a group a quality metric of a forward link shared channel while a subscriber station remains an active subscriber station and forgoing determining when the active subscriber station becomes passive; and
transmitting the determined quality metric on a reverse link common channel.
2 Assignments
0 Petitions
Accused Products
Abstract
To enable point-to-multipoint communication services in an existing cellular communication system infrastructure, each member subscriber station, i.e., a subscriber station participating in such a service, is receiving a forward link shared channel, and in certain embodiments additionally a forward link dedicated channel. Because transmission on the forward link channels from neighboring sectors presents interference to the transmission from the sector serving the subscriber station, it is desirable to control the forward link channel transmission power to the minimum acceptable power. Additionally, a transmission form each member subscriber station on a reverse link channel presents interference to other subscriber stations. Therefore, it is desirable to control the reverse link channel transmission to the minimum signal level. Consequently, a method and apparatus for a power control that enables point-to-multipoint services in an existing infrastructure of a wireless cellular telephone system is disclosed.
145 Citations
26 Claims
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1. A method for power control for point-to-multipoint services in a communication system, comprising:
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determining at each subscriber station belonging to a group a quality metric of a forward link shared channel while a subscriber station remains an active subscriber station and forgoing determining when the active subscriber station becomes passive; and transmitting the determined quality metric on a reverse link common channel. - View Dependent Claims (2, 3, 4, 5)
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6. A method for power control for point-to-multipoint services in a communication system, comprising:
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determining at each subscriber station belonging to a group a quality metric of a forward link shared channel; and transmitting the determined quality metric, wherein said transmitting the determined quality metric comprises transmitting the determined quality metric on a reverse link common channel monitored by the subscriber station. - View Dependent Claims (7, 8)
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9. An apparatus for power control for point-to-multipoint services in a communication system, comprising:
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means for determining at each subscriber station belonging to a group a quality metric of a forward link shared channel while a subscriber station remains an active subscriber station and forgoing determining when the active subscriber station becomes passive; and means for transmitting the determined quality metric on a reverse link common channel. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus for power control for point-to-multipoint services in a communication system, comprising:
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means for determining at each subscriber station belonging to a group a quality metric of a forward link shared channel; and means for transmitting the determined quality metric, wherein said means for transmitting the determined quality metric comprises means for transmitting the determined quality metric on a reverse link common channel monitored by the subscribed station. - View Dependent Claims (15, 16)
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17. An apparatus for power control for point-to-multipoint services in a communication system, comprising:
a subscriber station configured to; determine a quality metric of a forward link shared channel while the subscriber station remains an active subscriber station and forgoing determining when the active subscriber station becomes passive; and transmit the determined quality metric on a reverse link common channel. - View Dependent Claims (18, 19, 20, 21)
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22. An apparatus for power control for point-to-multipoint services in a communication system, comprising:
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a subscriber station configured to determine a quality metric of a forward link shared channel; and transmit the determined quality metric, wherein said subscriber station is further configured to transmit the determined quality metric on a reverse link common channel monitored by the subscriber station.
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23. An apparatus for power control for point-to-multipoint services in a communication system, comprising:
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a subscriber station configured to determine a quality metric of a forward link shared channel; and transmit the determined quality metric, wherein said subscriber station is further configured to; request an assignment of a reverse link dedicated channel over the reverse link common channel monitored by the subscriber station; and transmit the determined quality metric on the reverse link dedicated channel. - View Dependent Claims (24)
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25. A computer-readable storage medium including computer-executable instructions encoded thereon for:
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determining at each subscriber station belonging to a group a quality metric of a forward link shared channel while a subscriber station remains an active subscriber station and forgoing determining when the active subscriber station becomes passive; and transmitting the determined quality metric on a reverse link common channel.
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26. A computer-readable storage medium including computer-executable instructions encoded thereon for:
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determining at each subscriber station belonging to a group a quality metric of a forward link shared channel; and transmitting the determined quality metric, wherein said transmitting the determined quality metric comprises transmitting the determined quality metric on a reverse link common channel monitored by the subscriber station.
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Specification