Paging windows for power conservation in wireless networks
First Claim
Patent Images
1. A method of paging in a wireless cellular network comprising:
- synchronizing a wireless terminal window clock to a server window clock;
determining whether the wireless terminal is in a traffic mode or a standby mode;
in the event that the wireless terminal is in standby mode, determining whether the wireless terminal window clock indicates that the wireless terminal is in a paging window or in a dormant window using a set of instructions, wherein the paging window has a duration at least as long as a duration from a start of a first paging slot to an end of a second paging slot between the wireless terminal and the server such that the paging window overlaps at least one paging slot between the wireless terminal and a base station, and wherein the dormant window has a duration greater than at least twice a period between the first paging slot and the second paging slot, wherein the period between the first paging slot and the second paging slot is based at least in part on a paging clock of the base station or a paging clock of the wireless terminal; and
in the event that the wireless terminal is in the paging window;
determining a paging interval and a paging period, wherein the paging interval is based at least in part on a function of the wireless terminal identifier, a time, and a first paging period to distribute a paging load of the wireless network;
transmitting a page during the paging period occurring at a time based at least in part on the paging interval.
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Abstract
Improved paging for wireless networks is disclosed. A wireless terminal clock is synchronized to a server clock. A paging window and a dormant window are set for communicating between the server and the wireless terminal using the synchronized time. The paging window and the dormant window are set using a set of instructions. During the paging window, a control channel for a cellular network is found by the wireless terminal, and a page is received from the server at the wireless terminal.
40 Citations
30 Claims
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1. A method of paging in a wireless cellular network comprising:
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synchronizing a wireless terminal window clock to a server window clock; determining whether the wireless terminal is in a traffic mode or a standby mode; in the event that the wireless terminal is in standby mode, determining whether the wireless terminal window clock indicates that the wireless terminal is in a paging window or in a dormant window using a set of instructions, wherein the paging window has a duration at least as long as a duration from a start of a first paging slot to an end of a second paging slot between the wireless terminal and the server such that the paging window overlaps at least one paging slot between the wireless terminal and a base station, and wherein the dormant window has a duration greater than at least twice a period between the first paging slot and the second paging slot, wherein the period between the first paging slot and the second paging slot is based at least in part on a paging clock of the base station or a paging clock of the wireless terminal; and in the event that the wireless terminal is in the paging window; determining a paging interval and a paging period, wherein the paging interval is based at least in part on a function of the wireless terminal identifier, a time, and a first paging period to distribute a paging load of the wireless network; transmitting a page during the paging period occurring at a time based at least in part on the paging interval.
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2. A system for paging in a wireless cellular network comprising:
a server comprising; a server window clock, wherein the server window clock is synchronized periodically with a wireless terminal window clock; a processor; a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to; synchronize the wireless terminal window clock to the server window clock; determine whether the wireless terminal is in a traffic mode or a standby mode; in the event that the wireless terminal is in standby mode, determine whether the wireless terminal window clock indicates that the wireless terminal is in a paging window or in a dormant window using a set of instructions, wherein the paging window has a duration at least as long as a duration from a start of a first paging slot to an end of a second paging slot between the wireless terminal and the server such that the paging window overlaps at least one paging slot between the wireless terminal and a base station, and wherein the dormant window has a duration greater than at least twice a period between the first paging slot and the second paging slot, wherein the period between the first paging slot and the second paging slot is based at least in part on a paging clock of the base station or a paging clock of the wireless terminal; and in the event that the wireless terminal is in the paging window; determine a paging interval and a paging period, wherein the paging interval is based at least in part on a function of the wireless terminal identifier, a time, and a first paging period to distribute a paging load of the wireless network; transmit a page during the paging period occurring at a time based at least in part on the paging interval. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
Specification