WIRELESS NETWORK SYSTEM AND METHOD OF TRANSMITTING OR RECEIVING DATA OVER WIRELESS NETWORK

• US 20080130566A1
• Filed: 11/27/2007
• Published: 06/05/2008
• Est. Priority Date: 12/01/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kwon, Chang-yeul
• Granted Patent: US 8,059,624 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• 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 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02

Abstract

A wireless network system and a method of transmitting or receiving data over a wireless network capable of limiting transmission or reception of request packets by stations existing on the wireless network, where directional communication is performed in a high-frequency bandwidth, while a wireless network coordinator is being changed or while the wireless network coordinator is in a busy state. The wireless network station includes an identification unit which determines a state of network with reference to a beacon frame of a received superframe; a generation unit which generates a packet which includes an accepting command based on a result of the determination by the identification unit; and a communication unit which transmits the packet which includes the accepting command through a communication channel, wherein the identification unit determines whether the accepting command can be transmitted with reference to the beacon frame which indicates whether the accepting command which is transmitted by a wireless network station on or participating in the network can be transmitted.

Claims

1. A wireless network station comprising:

an identification unit which determines a state of network with reference to a beacon frame of a received superframe;

a generation unit which generates a packet which comprises an accepting command based on a result of the determination by the identification unit; and

a communication unit which transmits the packet which comprises the accepting command through a communication channel,

wherein the identification unit determines whether the accepting command can be transmitted with reference to the beacon frame which indicates whether the accepting command which is transmitted by a wireless network station on or participating in the network can be transmitted.

2. The station of claim 1, wherein the accepting command comprises at least one of:

a command for requesting bandwidth allocation of a channel time block in the superframe; and

a command for requesting an approval for participation in the network.

3. The station of claim 2, wherein the identification unit determines whether the accepting command can be transmitted and received with reference to a beacon state field of the beacon frame which comprises a flag which indicates the state of a wireless network coordinator on the network.

4. The station of claim 3, wherein the beacon state field comprises an accepting command field which indicates whether a packet which comprises a bandwidth allocation request command or a packet which comprises a command for requesting an approval for participation in the network can be received.

5. The station of claim 2, wherein a frequency bandwidth of the communication channel through which the beacon frame is transmitted or received is 2.4 GHz or 5 GHz, and a frequency bandwidth of a communication channel used in a reserved channel time block which is allocated by requesting bandwidth allocation is 60 GHz.

6. A method of transmitting or receiving data, the method comprising:

determining a state of network with reference to a beacon frame of a received superframe;

generating a packet which comprises an accepting command based on a result of the determining; and

transmitting the packet which comprises the accepting command through a predetermined communication channel,

wherein the determining the state of the network comprises identifying whether the accepting command can be transmitted with reference to the beacon frame which indicates whether the accepting command which is transmitted by a wireless network station on or participating in the network can be transmitted.

7. The method of claim 6, wherein the accepting command comprises at least one of:

a command for requesting bandwidth allocation of a channel time block in the superframe; and

a command for requesting an approval for participation in the network.

8. The method of claim 7, wherein the determining the state of the network comprises determining whether the accepting command can be transmitted and received with reference to a beacon state field of the beacon frame which comprises a flag which indicates the state of a wireless network coordinator on the network.

9. The method of claim 8, wherein the beacon state field comprises an accepting command field which indicates whether a packet which comprises a bandwidth allocation request command or a packet which comprises a command for requesting an approval for participation in the network can be received.

10. The method of claim 7, wherein a frequency bandwidth of the communication channel through which the beacon frame is transmitted or received is 2.4 GHz or 5 GHz, and a frequency bandwidth of a communication channel used in a reserved channel time block which is allocated by the requesting bandwidth allocation is 60 GHz.