US2015038180A1PendingUtilityA1

Paging area reduction based predictive mobility

59
Assignee: QUALCOMM INCPriority: Jul 31, 2013Filed: May 15, 2014Published: Feb 5, 2015
Est. expiryJul 31, 2033(~7 yrs left)· nominal 20-yr term from priority
Inventors:Roy Franklin Quick, Jr.Olufunmilola Omolade Awoniyi-OteriThomas E. Kilpatrick, Ii
H04W 74/0833H04W 36/322H04W 68/02H04W 8/08H04W 36/008375H04W 72/51H04W 64/00H04W 52/362H04W 52/228H04W 36/04H04W 36/10H04W 52/325H04W 72/02H04W 52/285H04W 60/00H04W 52/50H04W 52/22H04W 72/0473H04W 52/223H04W 64/006
59
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Claims

Abstract

Methods, systems, and devices are described for adjusting the number of base stations of a paging group based on the mobility state of a mobile device. The mobile device may autonomously determine its mobility state based on a sequence of repeated historical events associated with mobility patterns of the mobile device. The mobile device may communicate the mobility state to a base stations and receive a page from at least one of a subset of base stations of a paging group. The subset of base stations may be selected based on the mobility state of the mobile device. The number of base stations selected to be included in the subset of base stations may be reduces when the mobile device is in a stationary state or increased when the mobile device is in a mobile state. The mobile device may explicitly or implicitly convey the mobility state.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for managing wireless communications, comprising:
 determining, autonomously by a mobile device, a mobility state of the mobile device based on a sequence of repeated historical events associated with mobility patterns of the mobile device;   communicating the mobility state of the mobile device to a base station; and   receiving a page from at least one of a subset of base stations of a paging group, wherein the subset of base stations of the paging group is selected based on the mobility state of the mobile device.   
     
     
         2 . The method of  claim 1 , wherein the mobility state comprises one or more of a mobile state or a stationary state. 
     
     
         3 . The method of  claim 2 , wherein a number of base stations in the paging group is reduced when the mobile device is in the stationary state and increased when the mobile device is in the mobile state. 
     
     
         4 . The method of  claim 1 , wherein communicating the mobility state comprises transmitting a location area update. 
     
     
         5 . The method of  claim 4 , wherein communicating the mobility state comprises:
 transmitting two location area updates when the mobility state of the mobile device has changed to a stationary state, each of the location area updates indicating that the mobile device is within a same location area.   
     
     
         6 . The method of  claim 4 , wherein communicating the mobility state comprises:
 transmitting a location area update to the base station, wherein the base station is different from a recipient of a previous location area update.   
     
     
         7 . The method of  claim 1 , wherein communicating the mobility state of the mobile device comprises:
 transmitting a location area update, the location area update comprising at least one of: a mobility state information element or a cause information element indicative of the mobility state.   
     
     
         8 . The method of  claim 1 , wherein the sequence of historical events associated with the mobility patterns of the mobile device comprises at least two previous instances of a same historical event within a predetermined time period. 
     
     
         9 . The method of  claim 8 , wherein the sequence of historical events comprises one or more of: a channel environment event, a user event, a location event, or a time event. 
     
     
         10 . The method of  claim 8 , further comprises:
 predicting a future mobility of the mobile device based on a correlation among the sequence of historical events;   wherein the mobility state of the mobile device is based on the predicted future mobility of the mobile device.   
     
     
         11 . An apparatus for managing wireless communications, comprising:
 a processor; and   memory in electronic communication with the processor, the memory embodying instructions, the instructions being executable by the processor to:   determine, autonomously by a mobile device, a mobility state of the mobile device based on a sequence of repeated historical events associated with mobility patterns of the mobile device;   communicate the mobility state of the mobile device to a base station; and   receive a page from at least one of a subset of base stations of a paging group, wherein the subset of base stations of the paging group is selected based on the mobility state of the mobile device.   
     
     
         12 . The apparatus of  claim 11 , wherein the mobility state comprises one or more of a mobile state or a stationary state. 
     
     
         13 . The apparatus of  claim 12 , wherein a number of base stations in the paging group is reduced when the mobile device is in the stationary state and increased when the mobile device is in the mobile state. 
     
     
         14 . The apparatus of  claim 11 , wherein the instructions executable by the processor to communicate the mobility state are further executable to transmit a location area update. 
     
     
         15 . The apparatus of  claim 14 , wherein the instructions executable by the processor to communicate the mobility state are further executable to:
 transmit two location area updates when the mobility state of the mobile device has changed to a stationary state, each of the location area updates indicating that the mobile device is within a same location area.   
     
     
         16 . The apparatus of  claim 14 , wherein the instructions executable by the processor to communicate the mobility state are further executable to:
 transmit a location area update to the base station, wherein the base station is different from a recipient of a previous location area update.   
     
     
         17 . The apparatus of  claim 11 , wherein the instructions executable by the processor to communicate the mobility state are further executable to:
 transmit a location area update, the location area update comprising at least one of: a mobility state information element or a cause information element indicative of the mobility state.   
     
     
         18 . The apparatus of  claim 11 , wherein the sequence of historical events associated with the mobility patterns of the mobile device comprises at least two previous instances of a same historical event within a predetermined time period. 
     
     
         19 . The apparatus of  claim 18 , wherein the sequence of historical events comprises one or more of: a channel environment event, a user event, a location event, or a time event. 
     
     
         20 . The apparatus of  claim 18 , further comprising instructions executable by the processor to:
 predict a future mobility of the mobile device based on a correlation among the sequence of historical events;   wherein the mobility state of the mobile device is based on the predicted future mobility of the mobile device.   
     
     
         21 . A method for managing wireless communications, comprising:
 determining that a mobile device has transmitted a plurality of location area updates to one or more base stations within a same location area;   determining a mobility state of the mobile device based on the plurality of location area updates;   determining, based on the mobility state of the mobile device, a subset of base stations of a paging group to send a page to the mobile device; and   transmitting the page to the subset of base stations of the paging group.   
     
     
         22 . The method of  claim 21 , wherein the mobility state comprises at least one of: a mobile state or a stationary state. 
     
     
         23 . The method of  claim 22 , further comprising:
 reducing a number of base stations in the paging group in response to a determination that the mobile device is in the stationary state.   
     
     
         24 . The method of  claim 22 , further comprising:
 increasing a number of base stations in the subset of base stations of the paging group in response to a determination that the mobile device is in the mobile state.   
     
     
         25 . The method of  claim 21 , further comprising:
 determining that the mobile device has transmitted a location area update to a base station other than a recipient of a previous location area update from the mobile device; and   updating the mobility state of the mobile device based on the location area update.   
     
     
         26 . The method of  claim 25 , wherein the transmission of a second one of the location area updates by the mobile device indicates that the mobile device has transitioned to a mobile state. 
     
     
         27 . An apparatus for managing wireless communications, comprising:
 a processor; and   a memory in electronic communication with the processor, the memory embodying instructions, the instructions executable by the processor to:   determine that a mobile device has transmitted a plurality of location area updates to one or more base stations within a same location area;   determine a mobility state of the mobile device based on the plurality of location area updates;   determine, based on the mobility state of the mobile device, a subset of base stations of a paging group to send a page to the mobile device; and   transmit the page to the subset of base stations of the paging group.   
     
     
         28 . The apparatus of  claim 27 , wherein the mobility state comprises at least one of: a mobile state or a stationary state. 
     
     
         29 . The apparatus of  claim 28 , further comprising instructions executable by the processor to:
 reduce a number of base stations in the paging group in response to a determination that the mobile device is in the stationary state.   
     
     
         30 . The apparatus of  claim 28 , further comprising instructions executable by the processor to:
 increase a number of base stations in the subset of base stations of the paging group in response to a determination that the mobile device is in the mobile state.

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