US2015038143A1PendingUtilityA1

Optimizing handover or cell reselection based on historical data

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Assignee: QUALCOMM INCPriority: Jul 31, 2013Filed: Jul 18, 2014Published: Feb 5, 2015
Est. expiryJul 31, 2033(~7 yrs left)· nominal 20-yr term from priority
Inventors:Thomas E. Kilpatrick, IiOlufunmilola Omolade Awoniyi-OteriRoy Franklin Quick, Jr.Amir Sarajedini
H04W 74/0833H04W 36/322H04W 36/04H04W 36/245H04W 36/008375H04W 72/51H04W 52/22H04W 52/285H04W 52/228H04W 52/223H04W 64/006H04W 52/325H04W 60/00H04W 52/50H04W 64/00H04W 72/0473H04W 36/10H04W 72/02H04W 52/362H04W 68/02H04W 8/08
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Claims

Abstract

Methods, systems, and devices are described for optimizing handover or cell reselection of a mobile device based on historical information associated with mobility patterns of the mobile device. The mobile device may autonomously determine when a resource for the mobile device may be released based on the historical information. The mobile device may transmit a message to a serving cell indicating when the resource may be released and perform a handover or cell reselection procedure of the mobile device to the target cell. The serving cell may release the resource based on the indication received in the message.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for managing wireless communications, comprising:
 determining, by a mobile device, when a resource for the mobile device can be released by a serving cell during a handover or cell reselection procedure, wherein the determination is based on historical information associated with mobility patterns of the mobile device;   transmitting a message to the serving cell, the message indicating when the resource for the mobile device can be released by the serving cell; and   performing the handover or cell reselection of the mobile device to a target cell.   
     
     
         2 . The method of  claim 1 , wherein the message signals an early release of the resource based on the historical information. 
     
     
         3 . The method of  claim 2 , wherein the early release of the resource comprises releasing the resource before the serving cell receives an end marker message from a network entity. 
     
     
         4 . The method of  claim 1 , wherein the message signals a late release of the resource based on the historical information. 
     
     
         5 . The method of  claim 4 , wherein the late release of the resource comprises releasing the resource a predetermined time period after the mobile device has performed a synchronization with the target cell. 
     
     
         6 . The method of  claim 1 , wherein the message comprises a measurement report message. 
     
     
         7 . The method of  claim 1 , further comprising:
 modifying an exchange of radio resource control (RRC) connection reconfiguration messages based on the historical information.   
     
     
         8 . The method of  claim 7 , wherein modifying the exchange of RRC connection reconfiguration messages comprises:
 receiving an abbreviated RRC connection reconfiguration message in connection with the handover.   
     
     
         9 . The method of  claim 7 , further comprising:
 performing the handover without receiving an RRC connection reconfiguration message from the serving cell.   
     
     
         10 . The method of  claim 9 , further comprising:
 sending a measurement report message comprising a timer value associated with the handover procedure.   
     
     
         11 . The method of  claim 1 , further comprising:
 sending a measurement report message indicating that, based on the historical information, the target cell is a candidate for a blind handover;   starting, by the mobile device, a timer associated with the blind handover; and   performing the blind handover from the serving cell to the target cell following an expiration of the timer.   
     
     
         12 . The method of  claim 1 , wherein the historical information comprises information indicative of a sequence of historical events associated with the mobility patterns of the mobile device. 
     
     
         13 . The method of  claim 12 , 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. 
     
     
         14 . The method of  claim 12 , wherein the sequence of historical events comprises at least two previous instances of a same historical event within a predetermined time period. 
     
     
         15 . 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, by a mobile device, when a resource for the mobile device can be released by a serving cell during a handover or cell reselection procedure, wherein the determination is based on historical information associated with mobility patterns of the mobile device; 
 transmit a message to the serving cell, the message indicating when the resource for the mobile device can be released by the serving cell; and 
 perform the handover or cell reselection of the mobile device to a target cell. 
   
     
     
         16 . The apparatus of  claim 15 , wherein the message signals an early release of the resource based on the historical information. 
     
     
         17 . The apparatus of  claim 16 , wherein the early release of the resource comprises releasing the resource before the serving cell receives an end marker message from a network entity. 
     
     
         18 . The apparatus of  claim 15  wherein the message signals a late release of the resource based on the historical information. 
     
     
         19 . The apparatus of  claim 18 , wherein the late release of the resource comprises releasing the resource a predetermined time period after the mobile device has performed a synchronization with the target cell. 
     
     
         20 . The apparatus of  claim 15 , wherein the message comprises a measurement report message. 
     
     
         21 . The apparatus of  claim 15 , wherein the instructions are further executable by the processor to:
 modify an exchange of radio resource control (RRC) connection reconfiguration messages based on the historical information.   
     
     
         22 . The apparatus of  claim 21 , wherein the instructions to modify the exchange of RRC connection reconfiguration messages further comprises instructions executable by the processor to:
 receive an abbreviated RRC connection reconfiguration message in connection with the handover.   
     
     
         23 . The apparatus of  claim 21 , further comprising instructions executable by the processor to:
 perform the handover without receiving an RRC connection reconfiguration message from the serving cell.   
     
     
         24 . The apparatus of  claim 15 , further comprising instructions executable by the processor to:
 send a measurement report message indicating that, based on the historical information, the target cell is a candidate for a blind handover;   start, by the mobile device, a timer associated with the blind handover; and   perform the blind handover from the serving cell to the target cell following an expiration of the timer.   
     
     
         25 . The apparatus of  claim 15 , wherein the historical information comprises information indicative of a sequence of historical events associated with the mobility patterns of the mobile device. 
     
     
         26 . The apparatus of  claim 25 , 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. 
     
     
         27 . The apparatus of  claim 25 , wherein the sequence of historical events comprises at least two previous instances of a same historical event within a predetermined time period. 
     
     
         28 . An apparatus for managing wireless communications, comprising:
 means for determining, by a mobile device, when a resource for the mobile device can be released by a serving cell during a handover or cell reselection procedure, wherein the determination is based on historical information associated with mobility patterns of the mobile device;   means for transmitting a message to the serving cell, the message indicating when the resource for the mobile device can be released by the serving cell; and   means for performing the handover or cell reselection of the mobile device to a target cell.   
     
     
         29 . The apparatus of  claim 28 , wherein the message signals an early release of the resource based on the historical information. 
     
     
         30 . A computer program product for managing wireless communications, the computer program product comprising a non-transitory computer-readable storage medium comprising instructions executable by a processor to:
 determine, by a mobile device, when a resource for the mobile device can be released by a serving cell during a handover or cell reselection procedure, wherein the determination is based on historical information associated with mobility patterns of the mobile device;   transmit a message to the serving cell, the message indicating when the resource for the mobile device can be released by the serving cell; and   perform the handover or cell reselection of the mobile device to a target cell.

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