Method and system for high speed wireless data transmission between communication devices
Herein described are at least a method and a system for transmitting high speed wireless data from a first communication device to a second communication device. The method comprises using a first physical layer for transmitting management data or control signals between the first and second devices. In one embodiment, the management data may be used to authenticate and assign an appropriate wireless communication channel between the first and second device. The wireless communication channel is established by implementing a second physical layer in each of the first and second devices. The wireless communication channel may be used to transmit the high speed wireless data. The system comprises a first communication device and a second communication device wherein each of the first communication device and the second communication device utilizes a first physical layer and a second physical layer.
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The present U.S. Utility Patent Application claims priority under 35 U.S.C. §120, as a continuation of U.S. Utility Patent Application No. 11/584,213, filed Oct. 20, 2006, which is incorporated herein by reference in its entirety for all purposes.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[Not Applicable]
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BACKGROUND OF THE INVENTIONExisting wireless networking standards, such as 802.11, 802.15, and Wimedia utilize CSMA (carrier sense multiple access) protocols to transmit data using omni-directional antennas. However, when data rates increase, the use of such standards becomes impractical. For example, the use of the CSMA protocol is inefficient, since each data packet header comprises a higher percentage of overhead compared to the transmitted data, as the data rate increases. Furthermore, the required transmit power using an omni-directional antenna is not practical when the data is transmitted at higher rates. In addition, introduction of faster versions of these wireless networking standards require that their corresponding protocol be backward compatible to each of the previously existing versions. As a consequence, a new version of such a wireless networking standard may be burdened with additional software constraints and/or requirements.
The limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through comparison of such systems with some aspects of the present invention as set forth in the remainder of the present application with reference to the drawings.
BRIEF SUMMARY OF THE INVENTIONThe present invention is directed to apparatus and methods of operation that are further described in the following Brief Description of the Drawings, the Detailed Description of the Invention, and the Claims.
Other features and advantages of the present invention will become apparent from the following detailed description of the invention made with reference to the accompanying drawings.
Various aspects of the invention can be found in a method and a system for wirelessly transmitting high speed data between two devices. Each of the two devices may comprise any type of wireless communication device. For example, the wireless communication device may comprise a computer, multimedia or video player, or a high definition (HD) digital camera. Various aspects of the invention utilize a first physical layer (i.e., physical connection or PHY) to bidirectionally transmit one or more control signals that manage the transmission of the high speed data between a first device and a second device. The various aspects of the invention may utilize a second physical layer to transmit high speed wireless data between the first device and the second device. In a representative embodiment, the high speed data is transmitted unidirectionally from one device to another device. Furthermore, the various aspects of the invention utilize a first bandwidth to bidirectionally transmit one or more control signals that manage the transmission of the high speed wireless data. In a representative embodiment, the first physical layer may operate in burst mode while the second physical layer may operate in non-burst mode.
A first bandwidth may be used in association with the first physical layer while a second bandwidth may be used in association with the second physical layer. For example, two devices that communicate using the IEEE 802.11 standard may adapt the various aspects of the invention. The computing devices may utilize IEEE 802.11, for example, for transmitting the one or more control signals over the first bandwidth through each device's first physical layer. Further, these two devices may be adapted to utilize the second bandwidth for transmitting the high speed wireless data through each device's second physical layer. In a representative embodiment, the high speed data may be transmitted or received in a particular direction by way of using a directional antenna on a transmitting or receiving device. For example, the direction of an antenna's beam may be determined by way of using the one or more control signals to manage the rotation or movement of the directional antenna. The one or more control signals may be used to obtain and communicate various handshaking and/or device management data between the first and second devices. The rotation or movement of the directional antenna of the first device or the second device may be based on the position or location of the first device relative to the second device, for example.
While the invention has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims
1. A method comprising:
- communicating between a first wireless device and a second wireless device to wirelessly transfer control signals between the first wireless device and the second wireless device over a first bandwidth, wherein the control signals include an antenna training signal to directionally position an antenna of the first wireless device and an antenna of the second wireless device to establish a directional communication path between the two wireless devices; and
- using the directional communication path to transfer high speed data wirelessly from the first wireless device to the second wireless device over a second bandwidth.
2. The method of claim 1, wherein the second bandwidth is higher in frequency that the first bandwidth.
3. The method of claim 2, wherein the first bandwidth utilizes a protocol that conforms with Ultrawideband Wimedia or an ECMA-368/369 standard.
4. The method of claim 2, wherein the second bandwidth is centered approximately around 60 GHz.
5. The method of claim 2, wherein the second bandwidth is in the range of approximately 59-66 GHz.
6. The method of claim 2, wherein the directional communication path is used to transmit video data.
7. The method of claim 6, wherein the directional communication path that is used to transmit video data transmits the video data to the second wireless device, which is a television display.
8. The method of claim 6, wherein the directional communication path that is used to transmit video data transmits the video data to the second wireless device, which is a video player.
9. The method of claim 2, wherein the directional communication path is used to transmit multimedia data.
10. A method comprising:
- communicating between a first wireless device and a second wireless device to wirelessly transfer control signals bidirectionally between the first wireless device and the second wireless device over a first bandwidth, wherein the control signals include an antenna training signal to directionally position an antenna of the first wireless device and an antenna of the second wireless device to establish a directional communication high-speed channel between the two wireless devices; and
- using the directional communication high-speed channel to transfer high-speed data wirelessly from the first wireless device to the second wireless device over a second bandwidth, in which the second bandwidth is higher in frequency than the first bandwidth.
11. The method of claim 10, wherein the second bandwidth is approximately around 60 GHz.
12. The method of claim 10, wherein the directional communication high-speed channel is used to transmit video data.
13. The method of claim 12, wherein the second wireless device is a television display.
14. The method of claim 12, wherein the second wireless device is a video player.
15. The method of claim 10, wherein the directional communication high-speed channel is used to transmit multimedia data.
16. An apparatus comprising:
- a first physical layer of the apparatus to wirelessly transfer control signals between the apparatus and another wireless device over a first bandwidth, wherein the control signals to include an antenna training signal to directionally position an antenna of the apparatus and an antenna of the other wireless device to establish a directional communication path between the apparatus and the other wireless device; and
- a second physical layer of the apparatus to transmit high-speed data wirelessly to the other wireless device by use of the directionally positioned antennas over the established directional communication path, in which the high-speed data is transmitted over a second bandwidth, in which the second bandwidth is higher in frequency than the first bandwidth.
17. The apparatus of claim 16, wherein the second bandwidth is approximately around 60 GHz.
18. The apparatus of claim 16, wherein the directional communication path is used to transmit video data.
19. The apparatus of claim 16, wherein the apparatus is a computer.
20. The apparatus of claim 16, wherein the apparatus is a video source for generating video to a video display.
Type: Application
Filed: Jun 28, 2012
Publication Date: Oct 25, 2012
Applicant: BROADCOM CORPORATION (Irvine, CA)
Inventor: Christopher James Hansen (Los Altos, CA)
Application Number: 13/536,967
International Classification: H04W 4/00 (20090101);