METHOD AND APPARATUS FOR ALLOCATING BANDWIDTH OF WIRELESS NETWORK, AND METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA ON THE NETWORK

• US 20080112368A1
• Filed: 11/13/2007
• Published: 05/15/2008
• Est. Priority Date: 11/13/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kwon, Chang-Yeul
• Granted Patent: US 9,942,883 B2
• Time in Patent Office: Days
• US Class Current: 370/336
• 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
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

Provided are a bandwidth-allocation method and apparatus for a wireless network based on a time division transmission mechanism, and a method and apparatus for transmitting and receiving data on the wireless network. The data transmission method includes at least one wireless device belonging to the wireless network transmitting a frame to a network coordinator, the frame including a transmission mode of data and used to request a time slot, receiving a beacon frame containing information about the transmission mode and a time slot duration from the network coordinator, and transmitting the data in the transmission mode to other wireless devices belonging to the wireless network during the duration of the time slot, wherein the transmission mode indicates whether the data is transmitted by a wide-band signal or a narrow-band signal.

Claims

1. A bandwidth-allocation method for transmitting data in a wireless network, comprising:

receiving a first frame from at least one wireless device that belongs to the wireless network, wherein the first frame comprises information indicating a transmission mode for transmitting the data, and is used to request a time slot;

transmitting a second frame in response to the first frame to the at least one wireless device; and

broadcasting a beacon frame comprising information about the transmission mode and a time slot duration to the wireless network,

wherein the transmission mode indicates whether the data is transmitted by a wide-band signal or a narrow-band signal.

2. The bandwidth-allocation method of claim 1, wherein each of the first frame and the beacon frame further comprises information on an antenna pattern indicating whether a signal for transmitting the data has directivity.

3. The bandwidth-allocation method of claim 2, wherein if the transmission mode is a wide-band signal mode, the antenna pattern is a beam-forming pattern, and if the transmission mode is a narrow-band signal mode, the antenna pattern is an omni-directional pattern.

4. The bandwidth-allocation method of claim 3, wherein the data is transmitted by a wide-band signal if the data is uncompressed audio/video (AV) data, and an antenna of the at least one wireless device is driven by a beam-forming method when the data is transmitted.

5. A bandwidth-allocation apparatus comprising:

a receiving unit that receives a first frame from at least one wireless device that belongs to the wireless network, wherein the frame comprises information indicating a transmission mode for transmitting data, and is used to request a time slot;

a transmitting unit that transmits a response frame for the first frame to the at least one wireless device; and

a broadcasting unit that broadcasts a beacon frame comprising information about the transmission mode and a time slot duration to the network,

wherein the transmission mode indicates whether the data is transmitted by a wide-band signal or a narrow-band signal.