Wireless Communication Method for Updating Reference Channel Information and System Thereof

• US 20100298000A1
• Filed: 04/15/2010
• Published: 11/25/2010
• Est. Priority Date: 05/21/2009
• Status: Active Grant

• Current Assignee: Communication Advances LLC (IP Edge LLC)
• Original Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Inventors: Li, Cheng-Yen
• Granted Patent: US 8,260,305 B2
• Time in Patent Office: Days
• US Class Current: 455/440
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 72/00 Local resource management

Abstract

A wireless communication system capable of updating current reference channel information is provided. The wireless communication system includes a control apparatus and a plurality of reference information generating apparatuses. The wireless communication range of the control apparatus covers a plurality of regions. The reference information generating apparatuses, respectively placed in the regions, respectively report their reference position information and reference channel information to the control apparatus. When the control apparatus receives current position information from a target mobile communication apparatus, a current region among the regions is determined according to the current position information, and the control apparatus updates reference channel information according to the current region to the target mobile communication apparatus in real time.

Claims

1. A wireless communication system capable of updating current reference channel information, the system comprising:

a control apparatus that covers a plurality of regions and receives current position information of a mobile communication apparatus to determine a current region among the plurality of regions; and

a plurality of reference information generating apparatuses, respectively placed in the regions, that transmit respective reference position information and respective reference channel information to the control apparatus, the control apparatus transmitting to the mobile communication apparatus current reference channel information according to the current region.

2. The wireless communication system as claimed in claim 1, wherein the control apparatus is a base station.

3. The wireless communication system as claimed in claim 1, wherein the reference information generating apparatus transmit respective reference position information and reference channel information at a predetermined time interval based on a system default value or a user-defined value.

4. The wireless communication system as claimed in claim 1, wherein the reference channel information is associated with wireless channel parameters of delay time, phase, power, angle of arrival information, and path selection.

5. The wireless communication system as claimed in claim 1, wherein the reference information generating apparatuses provide respective reference position information and reference channel information, and obtain the reference channel information via trial-and-error or turbo codes.

6. The wireless communication system as claimed in claim 1, wherein the mobile communication apparatus updates current channel information thereof when the mobile communication apparatus determines to accept the current reference channel information transmitted from the control apparatus.

7. The wireless communication system as claimed in claim 1, wherein a design of rake receivers of the reference information generating apparatuses and a design of rake receivers of the mobile communication apparatus are identical.

8. The wireless communication system as claimed in claim 1, wherein the regions are in a beehive arrangement.

9. The wireless communication system as claimed in claim 1, wherein the reference position information transmitted by each of the reference information generating apparatuses is received from a positioning system.

10. The wireless communication system as claimed in claim 9, wherein the positioning system is Global Positioning System (GPS), Assisted Global Positioning System (AGPS), Global Navigation Satellite System (GLONASS), or a Galileo satellite navigation system.

11. The wireless communication system as claimed in claim 1, wherein the current position information of the mobile communication apparatus is received from a positioning system.

12. A wireless communication method for updating current reference channel information, the method comprising:

transmitting reference position information and reference channel information from a plurality of reference information generating apparatuses to a control apparatus, respectively; and

transmitting current reference channel information corresponding to a current region from the control apparatus to a mobile communication apparatus after the control apparatus receives current position information of the mobile communication apparatus and determines the current region according to the current position information.

13. The method as claimed in claim 12, wherein the reference information generating apparatuses respectively report the reference position information and reference channel information at a predetermined time interval based on a system default value or a user-defined value.

14. The method as claimed in claim 12, wherein the reference channel information is associated with wireless channel parameters of delay time, phase, power, angle of arrival information, and path selection.

15. The method as claimed in claim 12, wherein the reference information generating apparatuses provide respective reference position information and reference channel information, and obtain the reference channel information via trial-and-error or turbo codes.

16. The method as claimed in claim 12, further comprising:

updating current reference channel information of the mobile communication apparatus according to the current reference channel information when the mobile communication apparatus determines to accept the current reference channel information transmitted from the control apparatus.

17. The method as claimed in claim 12, wherein the reference position information reported by each of the reference information generating apparatuses is received from a positioning system.

18. A wireless communication system capable of updating current reference channel information, the system comprising:

a control apparatus that covers a plurality of regions; and

a plurality of reference information generating apparatuses, respectively placed in the regions, that report respective reference position information and respective reference channel information to the control apparatus, the control apparatus transmitting to a wireless communication apparatus that is within a wireless communication range of the wireless communication system current reference channel information according to communication between the control apparatus and the mobile communication apparatus.

19. The wireless communication system as claimed in claim 18, wherein when the mobile communication apparatus is in a base station hand-over, wherein the control apparatus determines the mobile communication apparatus is at an edge of at least one current region among the regions, generates the current reference channel information according to a reference channel of the at least one current region, and transmits the same to the mobile communication apparatus.

20. The wireless communication system as claimed in claim 18, wherein when a communication quality between the control apparatus and the mobile communication apparatus is better than that during a hand-over, the control apparatus determines the mobile communication apparatus is in the regions, generates the current reference channel information according to a reference channel of at least one current region among the regions, and transmits the same to the mobile communication apparatus.