Method and system for adjusting access parameters in response to surges in paging buffer occupancy
First Claim
1. A method comprising:
- a radio access network (RAN) accumulating page messages in a paging buffer for subsequent transmission into a wireless coverage area, wherein mobile stations operating in said wireless coverage area are configured to transmit responses to page messages transmitted by said RAN in accordance with a persistence test;
said RAN detecting a surge in occupancy of said paging buffer, wherein said RAN detecting a surge in occupancy of said paging buffer comprises determining that a first number of page messages occupied said paging buffer at a first time, determining that a second number of page messages occupied said paging buffer at a second time, and determining that said second number exceeds said first number by at least a threshold amount; and
in response to said surge, said RAN transmitting a control message into said wireless coverage area, wherein said control message changes a persistence parameter of said persistence test from an initial value to an updated value.
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Accused Products
Abstract
A radio access network (RAN) accumulates page messages in a paging buffer for subsequent transmission into a wireless coverage area. A buffer monitor is configured to periodically monitor the occupancy of the paging buffer and to detect when there is a surge in the paging buffer occupancy (e.g., when the occupancy increases by at least a threshold amount during an evaluation time period). When the buffer monitor detects a surge in paging buffer occupancy, the RAN transmits a control message that changes one or more access parameters that mobile stations operating in the wireless coverage area use to determine when to transmit responses to page messages. Because of the changed access parameters, mobile stations that receive page messages in the same time period are less likely to transmit responses in the same access cycle channel, thereby reducing the possibility of access probe collisions.
50 Citations
16 Claims
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1. A method comprising:
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a radio access network (RAN) accumulating page messages in a paging buffer for subsequent transmission into a wireless coverage area, wherein mobile stations operating in said wireless coverage area are configured to transmit responses to page messages transmitted by said RAN in accordance with a persistence test; said RAN detecting a surge in occupancy of said paging buffer, wherein said RAN detecting a surge in occupancy of said paging buffer comprises determining that a first number of page messages occupied said paging buffer at a first time, determining that a second number of page messages occupied said paging buffer at a second time, and determining that said second number exceeds said first number by at least a threshold amount; and in response to said surge, said RAN transmitting a control message into said wireless coverage area, wherein said control message changes a persistence parameter of said persistence test from an initial value to an updated value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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a radio access network (RAN) accumulating page messages in a paging buffer during an evaluation time period, wherein said evaluation time period extends from a first evaluation time to a second evaluation time; said RAN determining that occupancy of said paging buffer has increased by at least a threshold amount during said evaluation time period, wherein said RAN determining that occupancy of said paging buffer has increased by at least a threshold amount during said evaluation time period comprises determining that a first number of page messages occupied said paging buffer at said first evaluation time, determining that a second number of page messages occupied said paging buffer at said second evaluation time, and determining that said second number exceeds said first number by at least said threshold amount; in response to determining that occupancy of said paging buffer has increased by at least said threshold amount during said evaluation time period, said RAN transmitting a control message, wherein said control message updates a persistence test that determines when mobile stations respond to page messages transmitted by said RAN; and said RAN subsequently transmitting at least some of said page messages that accumulated in said paging buffer during said evaluation time period. - View Dependent Claims (10, 11, 12, 16)
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13. A system comprising:
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a radio frequency (RF) interface for wireless communication with mobile stations; a paging buffer for accumulating page messages for subsequent transmission by said RF interface; and a buffer monitor, wherein said buffer monitor is configured to (i) periodically monitor occupancy of said paging buffer, (ii) detect surges in occupancy of said paging buffer, wherein a surge is indicated when a first number of page messages are in said paging buffer at a first time, a second number of page messages are in said paging buffer at a second time, and said second number exceeds said first number by at least a predetermined amount, and (iii) in response to a detected surge, cause said RF interface to transmit a control message, wherein said control message updates a persistence test that determines when mobile stations respond to page messages transmitted by said RF interface.
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- 14. The system of 13, wherein said control message includes an updated value of a persistence parameter of said persistence test.
Specification