Adapting mobile device behavior using predictive mobility

Patent metadata

Field	Value
Publication number	US-9763252-B2
Application number	US-201414244339-A
Country	US
Kind code	B2
Filing date	Apr 3, 2014
Priority date	Jul 31, 2013
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

Methods, systems, and devices are described for adjusting at least one channel parameter based on accessed historical channel information associated with mobility patterns of a mobile device. In some examples, a mobile device or a base station may access historical channel information associated with mobility patterns of the mobile device or another mobile device. The mobility patterns may include information relative to a particular time and location of a mobile device, a previously traveled route by a mobile device, etc. Based on the historical channel information associated with the mobility patterns, the mobile device or the base station may adjust a channel parameter to improve communication performance across the particular channel.

First claim

What is claimed is:

1. A method for wireless communication, comprising:
recognizing that a mobile device is traveling along a previously travelled path;
accessing historical channel information associated with historical mobility patterns of the mobile device, wherein the historical mobility patterns comprise patterns of another mobile device previously traveling the path;
predicting a current channel condition based at least in part on the accessed historical channel information;
determining a level of accuracy of the predicted current channel condition;
measuring a current channel condition if the determined level of accuracy satisfies a threshold; and
adjusting a modulation and coding scheme (MCS) parameter of the mobile device based at least in part on the accessed historical channel information associated with the historical mobility patterns of the mobile device, the predicted current channel condition, and the measured current channel condition.

2. The method of claim 1 , further comprising:
predicting a variance in a channel condition based at least in part on the accessed historical channel information;
wherein adjusting the MCS parameter is based at least in part on the predicted variance in the channel condition.

3. The method of claim 1 , further comprising:
measuring a current channel condition;
wherein adjusting the MCS parameter is based at least in part on the measured current channel condition and the accessed historical channel information.

4. The method of claim 1 , wherein the historical channel information comprises at least one of channel quality information (CQI), precoding matrix information (PMI), and rank information (RI).

5. The method of claim 1 , wherein the historical mobility patterns of the mobile device further comprise at least one of a time value associated with at least one geographic location, a current cell identification (ID), or at least one other cell ID in a known physical route of the mobile device.

6. The method of claim 5 , wherein the historical channel information associated with the historical mobility patterns of the mobile device comprises at least one channel condition associated with the at least one of the time value associated with the at least one geographic location, the current cell ID, or the at least one other cell ID in the known physical route of the mobile device.

7. The method of claim 1 , wherein the historical mobility patterns of the mobile device further comprise a physical route previously travelled by the mobile device.

8. The method of claim 1 , further comprising:
adjusting at least one channel parameter for wireless communications, wherein the at least one channel parameter comprises a downlink channel parameter comprising at least one of a tone allocation or a multiple-input multiple-output (MIMO) precoding matrix.

9. The method of claim 1 , further comprising:
adjusting at least one channel parameter for wireless communications, wherein the at least one channel parameter comprises an uplink channel parameter comprising a constellation size.

10. The method of claim 1 , wherein the mobile device adjusts the MCS parameter.

11. The method of claim 1 , wherein a base station serving the mobile device adjusts the MCS parameter.

12. The method of claim 11 , wherein the base station adjusts the MCS parameter as the mobile device moves through a coverage area of the base station.

13. The method of claim 11 , wherein the base station adjusts the MCS parameter further based on at least one of a current cell identification (ID) or at least one other cell ID in a known physical route of the mobile device.

14. An apparatus for wireless communications, comprising:
a processor; and
a memory in electronic communication with the processor, the memory embodying instructions, the instructions being executable by the processor to:
recognize that a mobile device is traveling along a previously travelled path;
access historical channel information associated with historical mobility patterns of the mobile device, wherein the historical mobility patterns comprise patterns of another mobile device previously traveling the path;
predict a current channel condition based at least in part on the accessed historical channel information;
determine a level of accuracy of the predicted current channel condition;
measure a current channel condition if the determined level of accuracy satisfies a threshold; and
adjust a modulation and coding scheme (MCS) parameter of the mobile device based at least in part on the accessed historical channel information associated with the historical mobility patterns of the mobile device, the predicted current channel condition, and the measured current channel condition.

15. The apparatus of claim 14 , wherein the apparatus comprises at least one of:
a base station or the mobile device.

16. The apparatus of claim 14 , wherein the instructions are further executable by the processor to:
predict a variance in a channel condition based at least in part on the accessed historical channel information;
wherein adjusting the MCS parameter is based at least in part on the predicted variance in the channel condition.

17. The apparatus of claim 14 , wherein the instructions are further executable by the processor to:
measure a current channel condition;
wherein adjusting the MCS parameter is based at least in part on the measured current channel condition and the accessed historical channel information.

18. The apparatus of claim 14 , wherein the historical mobility patterns of the mobile device further comprise at least one of a time value associated with at least one geographic location, a current cell identification (ID), or at least one other cell ID in a known physical route of the mobile device.

19. An apparatus for wireless communications, comprising:
means for recognizing that a mobile device is traveling along a previously travelled path;
means for accessing historical channel information associated with historical mobility patterns of the mobile device, wherein the historical mobility patterns comprise patterns of another mobile device previously traveling the path;
means for predicting a current channel condition based at least in part on the accessed historical channel information;
means for determining a level of accuracy of the predicted current channel condition;
means for measuring a current channel condition if the determined level of accuracy satisfies a threshold; and
means for adjusting a modulation and coding scheme (MCS) parameter for wireless communications of the mobile device based at least in part on the accessed historical channel information associated with the historical mobility patterns of the mobile device, the predicted current channel condition, and the measured current channel condition.

20. The apparatus of claim 19 , wherein the apparatus comprises at least one of:
a base station or the mobile device.

21. The apparatus of claim 19 , further comprising:
means for predicting a variance in a channel condition based at least in part on the accessed historical channel information;
wherein the means for adjusting the MCS parameter uses the predicted variance in the channel condition to adjust the MCS parameter of the mobile device.

22. The apparatus of claim 19 , wherein the historical mobility patterns of the mobile device comprise at least one of a time value associated with at least one geographic location, a current cell ident

Assignees

• Qualcomm Inc
• Qualcomm Inc

Inventors

• Kilpatrick Ii Thomas
• Awoniyi-Oteri Olufunmilola
• Sarajedini Amir
• Quick Jr Roy Franklin
• Lundqvist Patrik Nils

Classifications

• H04W74/0833

  Random access procedures, e.g. with 4-step access · CPC title

• H04W52/362

  Aspects of the step size · CPC title

• H04W8/08

  Mobility data transfer · CPC title

• H04W52/285

  taking into account the mobility of the user · CPC title

• H04W72/048

  Electricity · mapped topic