SYSTEM, METHOD, AND DEVICE FOR MINIMIZING UPLINK REGISTRATION OR LOCATION REPORTS FOR FIXED OR LOW-MOBILITY DEVICES

• US 20140087717A1
• Filed: 09/19/2013
• Published: 03/27/2014
• Est. Priority Date: 09/21/2012
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Jang, Ke-Chi, Cherian, Airin
• Granted Patent: US 9,338,682 B2
• Time in Patent Office: Days
• US Class Current: 455/422.1
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 60/02 by periodical registration

Abstract

A system, method, and device for minimizing uplink registration or location reports, such as route update messages, for fixed or low-mobility devices. An access terminal is configured to transmit route update messages to a radio access network at a first rate and also at a reduced rate that is lower than the first rate. The access terminal is configured to transmit to the radio access network a request to allow the access terminal to use a reduced reporting function that causes the access terminal to transmit route update messages at a reduced rate that is lower than the first rate, receive a response that grants permission to use the reduced reporting function, and transmit route update messages at the reduced rate in accordance with the reduced reporting function.

Claims

1. A method, in an access terminal, for reducing a first rate at which the access terminal transmits route update messages to a radio access network over a wireless link, the access terminal comprising a processor and a memory for storing logic, the logic being executed by the processor to perform the method, comprising:

transmitting to the radio access network a request to allow the access terminal to use a reduced reporting function that causes the access terminal to transmit route update messages at a reduced rate that is lower than the first rate;

receiving from the radio access network a response that grants permission to use the reduced reporting function by the access terminal; and

transmitting route update messages to the radio access network at the reduced rate in accordance with the reduced reporting function.

2. The method according to claim 1, wherein the reduced reporting function comprises a timer parameter or a counter parameter, either of which defines the reduced rate at which the access terminal transmits route update messages.

3. The method according to claim 2, wherein when the reduced reporting function includes the timer parameter, the method further comprises:

transmitting an initial route update message to the radio access network; and

resetting a timer within the access terminal, wherein the timer counts a time period that is specified in the timer parameter.

4. The method according to claim 2, wherein when the reduced reporting function includes the counter parameter, the method further comprises:

transmitting an initial route update message to the radio access network; and

resetting a counter within the access terminal, wherein the counter includes a counter value as specified in the counter parameter.

5. The method according to claim 2, further comprising:

transmitting to the radio access network a proposed time period for the timer parameter or a proposed counter value for the counter parameter; and

receiving from the radio access network either;

confirmation of the proposed time period or the proposed counter value, or

an alternate time period or an alternate counter value.

6. The method according to claim 1, further comprising transmitting a route update message to the radio access network, when requested by the radio access network, even when a route update message is not required by the reduced reporting function.

7. The method according to claim 1, further comprising:

ascertaining network conditions local to the access terminal via a radio frequency scanner;

detecting a change in the network conditions local to the access terminal; and

transmitting a route update message to the radio access network even when a route update message is not required by reduced reporting function, when a change in network conditions local to the access terminal is detected.

8. A method, in a radio access network, for reducing a first rate at which the access terminal transmits route update messages to the radio access network over a wireless link, the radio access network comprising a processor and a memory for storing logic, the logic being executed by the processor to perform the method, comprising:

receiving a request to allow the access terminal to use a reduced reporting function that causes the access terminal to transmit route update messages at a reduced rate that is lower than the first rate;

transmitting a response that grants permission to use the reduced reporting function by the access terminal; and

receiving route update messages from the access terminal at the reduced rate in accordance with the reduced reporting function.

9. The method according to claim 8, further comprising determining whether the access terminal supports the reduced reporting function by evaluating a subscription profile for the access terminal prior to transmitting the response to the access terminal that grants permission to use the reduced reporting function by the access terminal.

10. The method according to claim 8, further comprising transmitting a response to the access terminal denying use of the reduced reporting function when the radio access network determines that the access terminal is not allowed to utilize the reduced reporting function.

11. The method according to claim 8, further comprising establishing a timer parameter of the reduced reporting function by selecting a time period between transmission of route update messages by the access terminal.

12. The method according to claim 8, further comprising establishing a counter parameter of the reduced reporting function by defining a counter value that specifies a number of messages that are to be sent by the access terminal before having to transmit a route update message.

13. An access terminal configured to transmit route update messages to a radio access network at a first rate and also at a reduced rate that is lower than the first rate, the access terminal comprising:

a processor; and

a memory for storing logic that includes a reduced reporting function, wherein the processor executes the logic to cause the access terminal to;

transmit to the radio access network, a request to allow the access terminal to use a reduced reporting function that causes the access terminal to transmit route update messages at the reduced rate;

receive from the radio access network, a response that grants permission to use the reduced reporting function by the access terminal; and

transmit route update messages to the radio access network at the reduced rate in accordance with the reduced reporting function.

14. The access terminal according to claim 13, wherein the reduced reporting function comprises a timer parameter or a counter parameter, either of which defines the reduced rate.

15. The access terminal according to claim 13, wherein the processor further executes the logic to cause the access terminal to:

receive the timer parameter from the radio access network, wherein the timer parameter includes a time period that is counted by a timer;

set a timer according to the time period;

transmit an initial route update message to the radio access network; and

reset the timer after the initial route update message is transmitted.

16. The access terminal according to claim 13, wherein the processor further executes the logic to cause the access terminal to:

set a counter of the counter parameter equal to a maximum counter value;

transmit an initial route update message to the radio access network; and

reset the counter within the access terminal, wherein the counter includes a counter value that is counted by a counter of the access terminal.

17. The access terminal according to claim 13, wherein the processor further executes the logic to cause the access terminal to:

determine network conditions local to the access terminal via a radio frequency scanner;

detect a change in the network conditions local to the access terminal; and

transmit a route update message to the radio access network even when a route update message is not required by the reduced reporting function.

18. The access terminal according to claim 13, wherein the processor further executes the logic to cause the access terminal to transmit to the radio access network a message that indicates that the access terminal is a fixed access or reduced mobility device.

19. A radio access network configured to receive route update messages from an access terminal at a first rate and also at a reduced rate that is lower than the first rate, the radio access network comprising:

a processor; and

a memory for storing logic, wherein the processor executes the logic to cause the radio access network to;

determine if the access terminal coupled with the radio access network supports a reduced reporting function;

transmit a response that grants permission to use the reduced reporting function by the access terminal; and

receive route update messages from the access terminal at the reduced rate in accordance with the reduced reporting function.

20. The radio access network according to claim 19, wherein the radio access network determines whether an access terminal supports the reduced reporting function by evaluating a subscription profile for the access terminal.

21. The radio access network according to claim 19, wherein the radio access network determines whether an access terminal should utilize the reduced reporting function by determining whether the access terminal is a fixed access or reduced mobility device.

22. The radio access network according to claim 21, wherein the processor executes the logic to cause the radio access network to set a tracking area update (TAU) period for the access terminal that includes an extended reporting period, wherein the tracking area update (TAU) period is the reduced reporting function.

23. The radio access network according to claim 21, wherein the processor executes the logic to cause the radio access network to set a lower signal strength trigger level that is lower than a normal level for the access terminal, wherein the lower signal strength trigger level causes the access terminal to reduce the number of measurement report messages the terminal transmits to the radio access network.

24. The radio access network according to claim 19, wherein the processor executes the logic to cause the radio access network to establish a timer parameter that comprises a time period that is utilized by a timer of the access terminal to cause the access terminal to transmit route update messages at the reduced rate.

25. The radio access network according to claim 19, wherein the processor executes the logic to cause the radio access network to establish a counter parameter that comprises a counter value that is utilized by a counter of the access terminal to cause the access terminal to transmit route update messages at the reduced rate.