BEAMFORMING FOR WIRELESS COMMUNICATION

• US 20130084908A1
• Filed: 09/29/2011
• Published: 04/04/2013
• Est. Priority Date: 09/29/2011
• Status: Active Grant

• Current Assignee: Hankuk University of Foreign Studies Research and Industry-University Cooperation Foundation
• Original Assignee: Hankuk University of Foreign Studies Research and Industry-University Cooperation Foundation
• Inventors: Joo, Jung Suk
• Granted Patent: US 8,583,151 B2
• Time in Patent Office: Days
• US Class Current: 455/509
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams

Abstract

Technologies are generally described for usage recommendation for mobile device. In some examples, a method performed under control of a downlink beamforming system may include receiving respective movement information of a plurality of mobile devices, grouping at least some of the mobile devices into one or more groups based on the movement information, and generating beams for the groups, respectively.

Claims

1. A method performed under control of a downlink beamforming system, comprising:

receiving respective movement information of a plurality of mobile devices;

grouping at least some of the mobile devices into one or more groups based on the movement information; and

generating beams for the groups, respectively.

2. The method of claim 1, wherein the movement information is associated with respective velocity information of the mobile devices.

3. The method of claim 2, wherein the grouping includes:

classifying the mobile devices into a low speed group and a high speed group based on the velocity information,

wherein a speed of a mobile device in the low speed group is slower than a predetermined speed, and a speed of a mobile device in the high speed group is faster than the predetermined speed.

4. The method of claim 3, wherein the grouping includes:

dividing at least some of mobile devices in the low speed group into one or more sub-groups based on positions of the mobile devices in the low speed group.

5. The method of claim 4, wherein the sub-groups include a plurality of mobile devices located in a predetermined range.

6. The method of claim 4, wherein the predetermined range is associated with direction from a base station including the downlink beamforming system to mobile devices in the sub-groups.

7. The method of claim 5, wherein the generating includes:

creating one or more directional beams for the sub-groups, respectively.

8. The method of claim 5, wherein the generating includes:

creating an omni-directional beam for at least one mobile device not belonging to the sub-groups.

9. The method of claim 1, wherein further comprising:

updating the movement information periodically.

10. The method of claim 9, wherein the grouping includes:

regrouping the groups based on the updated movement information.

11. A downlink beamforming system, comprising:

a receiving unit configured to receive movement information of a plurality of mobile devices;

a grouping unit configured to group at least some of the mobile devices into one or more groups based on the movement information; and

a beam generation unit configured to generate beams for the groups, respectively.

12. The downlink beamforming system of claim 11, wherein the movement information is associated with velocity information of the mobile devices.

13. The downlink beamforming system of claim 12, wherein the grouping unit includes:

a classifying unit configured to classify the mobile devices into a low speed group and a high speed group based on the velocity information, wherein a velocity of a mobile device in the low speed group is slower than a predetermined velocity, and a velocity of a mobile device in the high speed group is faster than the predetermined velocity.

14. The downlink beamforming system of claim 13, wherein the grouping unit includes:

a regrouping unit configured to regroup at least some of mobile devices in the low speed group into one or more sub-groups based on positions of the mobile devices in the low speed group.

15. The downlink beamforming system of claim 14, wherein the sub-groups include a plurality of mobile devices positioned in a predetermined range.

16. The downlink beamforming system of claim 15, wherein the beam generation unit includes:

a directional beam generation unit configured to generate one or more directional beams for the sub-groups, respectively.

17. The downlink beamforming system of claim 15, wherein the beam generation unit includes:

an omni-directional beam generation unit configured to generate an omni-directional beam for at least one mobile device not belonging to the sub-groups.

18. The downlink beamforming system of claim 11, further comprising:

an updating unit configured to update the movement information periodically,

wherein the grouping unit is further configured to regroup the groups based on the updated movement information.

19. A computer-readable storage medium having stored thereon computer-executable instructions that, in response to execution, cause a downlink beamforming system to perform operations, comprising:

receiving respective movement information of a plurality of mobile devices;

grouping at least some of the mobile devices into one or more groups based on the movement information; and

generating beams for the groups, respectively.

20. The computer-readable storage medium of claim 19, wherein the movement information is associated with respective velocity information of the mobile devices.

21. The computer-readable storage medium of claim 20, wherein the grouping includes:

classifying the mobile devices into a low speed group and a high speed group based on the velocity information,

wherein a speed of a mobile device in the low speed group is slower than a predetermined speed, and a speed of a mobile device in the high speed group is faster than the predetermined speed.

22. The computer-readable storage medium of claim 21, wherein the grouping includes:

dividing at least some of mobile devices in the low speed group into one or more sub-groups based on positions of the mobile devices in the low speed group.