METHOD OF CONTROLLING CONNECTION ESTABLISHMENT IN A WIRELESS NETWORK

• US 20100216391A1
• Filed: 12/13/2007
• Published: 08/26/2010
• Est. Priority Date: 12/13/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Taek Soo, Cho, Hyeon Cheol, Jeon, Beom Jin
• Granted Patent: US 8,285,198 B2
• Time in Patent Office: Days
• US Class Current: 455/3.10
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04N 21/643 Communication protocols network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP], H04L65/65
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 28/26 Resource reservation

Abstract

Methods of controlling connection establishment to transmit or receive AA/data in a wireless network are disclosed. A method of controlling connection establishment to transmit or receive AA/data in a first device of a wireless network, which includes a coordinator and at least one device, comprises transmitting connection request information required to request connection establishment with a second device and a connection request message which includes capability information of the first device to the second device, and receiving a connection response message from the second device in response to the connection request message. As well as message formats to said methods are disclosed.

Claims

1. A method of controlling connection establishment to transmit or receive A/V data in a first device of a wireless network including a coordinator and at least one device, the method comprising:

transmitting a connection request message including connection request information necessary for requesting connection establishment with a second device and capability information of the first device to the second device; and

receiving a connection response message from the second device in response to the connection request message.

2. The method of claim 1, wherein the connection response message includes connection response information necessary for responding to the connection request message and capability information of the second device.

3. The method of claim 1, further comprising:

performing, at the second device, a bandwidth reservation procedure for allocating channel resources with the coordinator of the wireless network; and

transmitting A/V data from the second device to the first device by using the channel resources allocated from the coordinator.

4. The method of claim 3, wherein the capability information of the first device includes data format information of A/V data that can be supported by the first device.

5. The method of claim 4, wherein the capability information of the first device further includes type information of the data format information.

6. The method of claim 2, wherein the capability information of the second device includes data format information of A/V data that can be supported by the second device.

7. The method of claim 6, wherein the capability information of the second device further includes type information of the data format information.

8. The method of claim 1, wherein the connection request information includes port information of the first device.

9. The method of claim 2, wherein the connection response information further includes result information of the connection establishment.

11. The method of claim 1, further comprising:

performing, at the first device, a bandwidth reservation procedure for allocating channel resources with the coordinator of the wireless network; and

transmitting A/V data from the first device to the second device by using the channel resources allocated from the coordinator.

10. (canceled)

12. A method of controlling connection establishment to transmit A/V data in a source device of a wireless network including a coordinator and at least one device, the method comprising:

receiving a connection request message including connection request information necessary for requesting connection establishment and capability information of a sink device from the sink device;

performing a bandwidth reservation procedure for allocating channel resources with the coordinator of the wireless network to transmit the A/V data; and

transmitting a connection response message to the sink device in response to the connection request message.

13. The method of claim 12, wherein the connection response message includes connection response information necessary for responding to the connection request message and capability information of the source device.

14. The method of claim 12, wherein the capability information of the sink device includes data format information of A/V data that can be supported by the sink device.

15. The method of claim 13, wherein the capability information of the source device includes data format information of A/V data that can be supported by the source device.

16. A message format for a request of connection establishment between a source device and a sink device in a wireless network which includes a coordinator and at least one device, comprising:

a connection request information field region including information necessary for requesting connection establishment with the source device in the sink device; and

a capability information field region including information related to capability of the sink device.

17. The message format of claim 16, wherein the capability information field region includes at least one first field including data format information supported by the sink device, and at least one second field indicating a type of the first field.

18. The message format of claim 17, wherein the connection request information field region includes a third field including port information of the sink device.

19. A message format for a response of connection establishment between a source device and a sink device in a wireless network including a coordinator and at least one device, comprising:

a connection response information field region including information necessary for responding to a request of connection establishment with the source device in the sink device; and

a data format information field region including information related to capability of the source device.

20. The message format of claim 19, wherein the data format information field region includes at least one first field including data format information of A/V data that can be transmitted from the source device, and at least one second field indicating a type of the first field.

21. The message format of claim 20, wherein the connection response information field region includes a third field including result information of connection establishment and a fourth field including port information of the source device.