Method and apparatus for power saving in wireless systems
First Claim
1. A method for effecting power saving in a subscriber'"'"'s device associated with a wireless network which comprises a base station and at least said subscriber device, and wherein said subscriber'"'"'s device is operative to simultaneously receive at least two different services each of which is characterized by one or more characteristics related to traffic demands associated with that service, which method comprises:
- classifying each of said at least two different services based on their traffic demand related characteristics, into corresponding power saving classes, provided that there are at least two different simultaneously active power saving classes associated with said at least two different services;
for each of said power saving classes, determining required listening windows and required sleep windows;
determining unavailability periods of time for said subscriber'"'"'s device during which no communications will be exchanged between said base station and said subscriber'"'"'s device, such that the unavailability windows are determined based on a combination of the sleep windows of said at least two simultaneously active power saving classes;
exchanging messages between said base station and said subscriber'"'"'s device for synchronizing parameters for carrying out a power saving procedure to be associated with said at least two different simultaneously received services; and
activating said power saving procedure in said subscriber'"'"'s device based upon said synchronized parameters.
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Accused Products
Abstract
A method is provided for carrying out a power saving procedure in a wireless subscriber terminal which is operative to receive at least two different services, each of which is characterized by one or more characteristics related to traffic demands associated with that service. The method comprises the following steps: classifying each of the at least two different services based on their traffic demand related characteristics into corresponding power saving classes, where there are at least two different power saving classes associated with the at least two different services; for each of the power saving classes, determining required listening windows and required sleep windows; exchanging messages between the base station and the subscriber'"'"'s device for synchronizing parameters for carrying out the power saving procedure.
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Citations
14 Claims
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1. A method for effecting power saving in a subscriber'"'"'s device associated with a wireless network which comprises a base station and at least said subscriber device, and wherein said subscriber'"'"'s device is operative to simultaneously receive at least two different services each of which is characterized by one or more characteristics related to traffic demands associated with that service, which method comprises:
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classifying each of said at least two different services based on their traffic demand related characteristics, into corresponding power saving classes, provided that there are at least two different simultaneously active power saving classes associated with said at least two different services; for each of said power saving classes, determining required listening windows and required sleep windows; determining unavailability periods of time for said subscriber'"'"'s device during which no communications will be exchanged between said base station and said subscriber'"'"'s device, such that the unavailability windows are determined based on a combination of the sleep windows of said at least two simultaneously active power saving classes; exchanging messages between said base station and said subscriber'"'"'s device for synchronizing parameters for carrying out a power saving procedure to be associated with said at least two different simultaneously received services; and activating said power saving procedure in said subscriber'"'"'s device based upon said synchronized parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A base station adapted to operate in a wireless network and comprising:
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an interface operative to allow communication between said base station and a communication network associated therewith; at least one radio transceiver capable of transmitting communication traffic towards at least one subscriber device and receive communication traffic therefrom, wherein said base station is adapted to provide said subscriber with at least two different simultaneous services, each of which is characterized by one or more characteristics related to traffic demands associated with that service; means operative to classify each of said at least two different simultaneous services based on their traffic-demand-related characteristics, into their corresponding power saving classes, provided that there are at least two different simultaneously active power saving classes associated with services supported by the subscriber'"'"'s device; at least one processor adapted to; for each of said power saving classes, determine required listening windows and possible sleep windows; exchange messages with said subscriber'"'"'s device for synchronizing at least one parameter for carrying out a power saving procedure to be associated with said at least two different simultaneous services; during provisioning of said at least two different simultaneous services, determine unavailability windows of time for the subscriber'"'"'s device in which no communication will be exchanged between said base station and said subscriber'"'"'s device, wherein the unavailability windows are determined based on a combination of the sleep windows of said at least two simultaneously active power saving classes; and transmitting a message towards said subscriber'"'"'s device to activate a power saving procedure for the duration of said unavailability windows.
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12. A subscriber'"'"'s terminal adapted to operate in a wireless network and to simultaneously receive at least two different services, each of which is characterized by one or more characteristics related to traffic demands associated with that service, wherein said at least two different services which said subscriber'"'"'s terminal is operative to simultaneously receive, are associated with at least two different simultaneously active power saving classes, and wherein said subscriber'"'"'s terminal comprising:
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an interface operative to allow communication between said subscriber'"'"'s terminal and a base station; at least one radio transceiver operative to transmit communication traffic towards said base station and receive communication traffic therefrom; at least one processor adapted to exchange messages with said base station for synchronizing at least one parameter for carrying out a power saving procedure to be associated with said at least two different simultaneously received services; and a power controller operative to reduce the power of said at least one radio transceiver for the duration of unavailability windows of time in which no communication will be exchanged between said base station and said subscriber'"'"'s terminal, in response to a pre-defined message received from said base station, wherein the unavailability windows are determined based on a combination of the sleep windows of said at least two simultaneously active power saving classes. - View Dependent Claims (13, 14)
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Specification