BASE STATION, SUBORDINATED STATION AND TRANSMISSION METHOD THEREOF

• US 20090274231A1
• Filed: 05/05/2009
• Published: 11/05/2009
• Est. Priority Date: 05/05/2008
• Status: Active Grant

• Current Assignee: Institute For Information Industry
• Original Assignee: Institute For Information Industry
• Inventors: Lee, Yung-Ting, Yin, Hua-Chiang, Lin, Po-Jung, Lee, Youn-Tai, Sheu, Shiann-Tsong, Lee, Yang-Han, Lee, Wei-Chen, Tseng, Hsi-Chun, Chuang, Ming-Hsueh, Wang, Ting-Chien, Jan, Yih-Guang, Tseng, Wei-Chieh, Lin, Jheng-Yao, Tseng, Hsien-Wei
• Granted Patent: US 8,179,852 B2
• Time in Patent Office: Days
• US Class Current: 375/260
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network.

Claims

1. A base station (BS) for use in a multi-input multi-output (MIMO) network, the MIMO network including a subordinated station (SS) within a signal coverage of the BS, the BS comprising:

a storage module, being configured to store resource allocation information about the MIMO network and an SS list;

a generation module, being configured to generate a super frame corresponding to the SS according to the resource allocation information and the SS list, the super frame comprising a pilot pattern, the pilot pattern being arranged as an identifier of the SS; and

a transceiver, being configured to transmit downlink (DL) data to the SS by the super frame so that the SS may receive the DL data after confirming the pilot pattern of the super frame matches the identifier of the SS.

2. The BS as claimed in claim 1, wherein the pilot pattern comprises a plurality of pilots, each of the pilots comprises mitigation information so that the SS may overcome a transmission interference of the DL data according to the mitigation information after receiving the DL data.

3. The BS as claimed in claim 1, wherein the SS transmits uplink (UL) data to the BS by the super frame, the transceiver is further configured to receive the UL data after confirming the pilot pattern of the super frame matches the identifier of the SS.

4. The BS as claimed in claim 3, wherein the pilot pattern comprises a plurality of pilots, each of the pilots comprises mitigation information, the transceiver is further configured to overcome a transmission interference of the UL data according to the mitigation information after receiving the UL data.

5. The BS as claimed in claim 1, wherein the generation module is further configured to generate an interference-reducing (IR) zone in the super frame, the IR zone comprises the pilot pattern.

6. A transmission method for use in a BS of an MIMO network, the MIMO network including a subordinated station (SS) within a signal coverage of the BS, the BS storing resource allocation information about the MIMO network and an SS list, the transmission method comprising the following steps of:

generating a super frame corresponding to the SS according to the resource allocation information and the SS list, the super frame comprising a pilot pattern, the pilot pattern being arranged as an identifier of the SS; and

transmitting downlink (DL) data to the SS by the super frame so that the SS may receive the DL data after confirming the pilot pattern of the super frame matches the identifier of the SS.

7. The transmission method as claimed in claim 6, wherein the SS transmits a UL data to the BS by the super frame, the transmission method further comprises a step of receiving the UL data after confirming the pilot pattern of the super frame matches the identifier of the SS.

8. The transmission method as claimed in claim 7, wherein each of the pilots comprises mitigation information, the transmission method further comprises a step of overcoming a transmission interference of the UL data according to the mitigation information after receiving the UL data.

9. The transmission method as claimed in claim 6, further comprising a step of generating an IR zone in the super frame, the IR zone comprises the pilot pattern.

10. A subordinated station (SS) for use in an MIMO network, the MIMO network comprising a BS, the SS being within a signal coverage of the BS, the BS being transmitting DL data to the SS by a super frame, the super frame comprising a pilot pattern, the pilot pattern being arranged as an identifier of the SS, the SS comprising:

a transceiver, being configured to receive the pilot pattern of the super frame; and

a confirmation module, being configured to confirm the pilot pattern of the super frame matches the identifier of the SS and then generate a confirmation result;

wherein the transceiver is further configured to receive the DL data according to the confirmation result.

11. The SS as claimed in claim 10, wherein the pilot pattern comprises a plurality of pilots, each of the pilots comprises mitigation information, the transceiver is further configured to overcome a transmission interference of the DL data according to the mitigation information after receiving the DL data.

12. The SS as claimed in claim 10, wherein the transceiver is further configured to transmit a UL data to the BS by the super frame so that the BS may receive the UL data after confirming the pilot pattern of the super frame matches the identifier of the SS.

13. A transmission method for use in an SS of an MIMO network, the MIMO network comprising a BS, the SS being within a signal coverage of the BS, the BS being transmitting DL data to the SS by a super frame, the super frame comprising a pilot pattern, the pilot pattern being arranged as an identifier of the SS, the transmission method comprising the following steps of:

receiving the pilot pattern of the super frame;

confirming the pilot pattern of the super frame matches the identifier of the SS;

generating a confirmation result; and

receiving the DL data according to the confirmation result.

14. The transmission method as claimed in claim 13, wherein the pilot pattern comprises a plurality of pilots, each of the pilots comprises mitigation information, the transmission method further comprises a step of overcoming a transmission interference of the DL data according to the mitigation information after receiving the DL data.

15. The transmission method as claimed in claim 13, further comprising a step of transmitting a UL data to the BS by the super frame so that the BS may receive the UL data after confirming the pilot pattern of the super frame matches the identifier of the SS.