Channel allocation management method for transferring asynchronous data, asynchronous data transferring method, and apparatus thereof

• US 8,149,794 B2
• Filed: 06/05/2007
• Issued: 04/03/2012
• Est. Priority Date: 06/05/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Shin, Se-young, Kwon, Chang-yeul
• Primary Examiner(s): Chang, Kent
• Assistant Examiner(s): Eisner, Ronald
• Application Number:
  US11/758,060
• Publication Number:
  US 20070280184A1
• Time in Patent Office: 1,764 Days
• Field of Search: 370/336, 370/328, 370/218, 370/229, 370/432, 370/349
• US Class Current: 370/336
• 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 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 74/0891 for synchronized access

Abstract

A method of managing channel allocation for asynchronous data transmission includes (a) broadcasting a first superframe for a first beacon period, the first superframe containing a control section and a data slot section; (b) receiving a request frame from at least one wireless device belonging to a network via the control section, the request frame requesting addition of a data slot for asynchronous data transmission; (c) transmitting a response frame to the at least one wireless device via the control section in response to the request frame; and (d) broadcasting a second superframe for a second beacon period, the second superframe containing information regarding a data slot added to the at least one wireless device.

Claims

1. A method of managing channel allocation for asynchronous data transmission, the method comprising:

broadcasting a first superframe for a first beacon period, the first superframe containing a control section and a data slot section;

receiving a request frame from at least one wireless device belonging to a network via the control section, the request frame requesting additions of data slots for asynchronous data transmission;

transmitting a response frame to the at least one wireless device via the control section in response to the request frame; and

broadcasting a second superframe for a second beacon period, the second superframe containing information regarding the requested data slot, if the requested data slot is added, to the at least one wireless device,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding addition of a data slot, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot, and

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

2. The method of claim 1, wherein communication with the at least one wireless device is conducted via a millimeter wave channel.

3. The method of claim 1, wherein the first superframe comprises a first contention section and a first contention-free section, and the second superframe comprises a second contention section and a second contention-free section, the first contention section comprises the control section and the data slot section, and the second contention-free section comprises a control section of the second superframe and a data slot section of the second superframe.

4. The method of claim 1, wherein each of the first fields of the request frame comprises at least one of identification information regarding asynchronous data to be transmitted, identification information regarding the request frame, and information regarding a minimum channel length to be guaranteed.

5. The method of claim 1, wherein each of the second fields of the response frame further comprises at least one of identification information regarding asynchronous data to be transmitted, identification information regarding the request frame, and information regarding the added data slot.

6. The method of claim 1, wherein the asynchronous data is uncompressed data.

7. A method of transmitting asynchronous data, the method comprising:

receiving a first superframe from a network coordinator for a first beacon period, the first superframe containing a control section and a data slot section;

transmitting a request frame to the network coordinator within the control section, the request frame requesting additions of data slots for transmission of asynchronous data;

receiving a response frame from the network coordinator within the control section in response to the request frame;

receiving a second superframe from the network coordinator for a second beacon period, the second superframe containing information regarding an added data slot; and

transmitting corresponding asynchronous data via the added data slot,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding addition of a data slot, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot,

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

8. The method of claim 7, wherein communication with a wireless device is conducted via a millimeter wave channel.

9. The method of claim 7, wherein the first superframe comprises a first contention section and a first contention-free section and the second superframe comprises a second contention section and a second contention-free section, the first contention section comprises the control section of the first superframe, the second contention section comprises a control section of the second superframe, and the first contention-free section comprises the data slot section of the first superframe, and the second contention-free section comprises a data slot section of the second superframe.

10. The method of claim 7, wherein each of the first fields of the request frame comprises at least one of identification information regarding asynchronous data to be transmitted, identification information regarding the request frame, and information regarding a minimum channel length to be guaranteed.

11. The method of claim 7, wherein the asynchronous data is uncompressed data.

12. A method of managing channel allocation for asynchronous data transmission, the method comprising:

broadcasting a first superframe for a first beacon period, the first superframe containing a control section and a data slot section;

receiving a request frame from at least one wireless device belonging to a network via the control section, the request frame requesting returns of data slots for asynchronous data transmission;

transmitting a response frame to the at least one wireless device via the control section in response to the request frame; and

broadcasting a second superframe for a second beacon period, the second superframe containing information regarding the requested data slots returned, to the at least one wireless device,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding an addition of a data slot, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot,

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

13. The method of claim 12, wherein communication with the at least one wireless device is conducted via a millimeter wave channel.

14. The method of claim 12, wherein the first superframe comprises a first contention section and a first contention-free section, and the second superframe comprises a second contention section and a second contention-free section, the first contention section comprises the control section of the first superframe, and the second contention section comprises a control section of the second superframe, and the first contention-free section comprises the data slot section of the first superframe, and the second contention-free section comprises a data slot section of the second superframe.

15. The method of claim 12, wherein the asynchronous data is uncompressed data.

16. An apparatus for allocating a data slot for asynchronous data transmission, the apparatus comprising:

a first broadcast unit which broadcasts a first superframe for a first beacon period, the first superframe containing a control section and a data slot section;

a reception unit which receives a request frame within the control section from at least one wireless device belonging to a network, the request frame requesting additions of data slots for asynchronous data transmission;

a transmission unit which transmits a response frame within the control section to the at least one wireless device in response to the request frame; and

a second broadcast unit which broadcasts a second superframe for a second beacon period, the second superframe containing information regarding the requested data slots, if the requested data slots are added, to the at least one wireless device,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding addition of a data slot, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot,

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

17. An apparatus for allocating a data slot for asynchronous data transmission, the apparatus comprising:

a first broadcast unit which broadcasts a first superframe for a first beacon period, the first superframe containing a control section and a data slot section;

a reception unit which receives a request frame within the control section from at least one wireless device belonging to a network, the request frame requesting returns of data slots for asynchronous data transmission;

a transmission unit which transmits a response frame within the control section to the at least one wireless device in response to the request frame; and

a second broadcast unit which broadcasts a second superframe for a second beacon period, the second superframe containing information regarding the requested data slot returned, to the at least one wireless device,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding an addition of a data slot, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot,

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

18. An apparatus for transmitting asynchronous data, the apparatus comprising:

a reception unit which receives a first superframe from a network coordinator for a first beacon period, the first superframe containing a control section and a data slot section;

a first transmission unit which transmits a request frame within a control section contained in the first superframe to the network coordinator, the request frame requesting additions of data slots for asynchronous data transmission;

a reception unit which receives a response frame from the network coordinator within the control section in response to the request frame;

a reception unit which receives a second superframe from the network coordinator for a second beacon period, the second superframe containing information regarding an added data slot, and

a second transmission unit which transmits asynchronous data via the added data slot,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding addition of a data slot, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot,

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

19. A method of transmitting asynchronous data, the method comprising:

receiving a request frame from at least one device connected to a network via a first beacon section, the request frame requesting asynchronous data transmission;

transmitting a response frame to the at least one device connected to the network in response to the request frame; and

transmitting asynchronous data to the at least one device connected to the network based on the response frame,

wherein the request frame comprises a plurality of first fields, each of which keeps a record of information regarding an addition of a data slot for asynchronous data transmission, the response frame comprises a plurality of second fields, each of which keeps a record of response information regarding addition of a data slot,

wherein each of the second fields of the response frame comprises information regarding a reason the requested data slot fails to be added if the requested data slot fails to be added.

20. The method of claim 19, wherein each of the first fields of the request frame comprises at least one of identification information regarding asynchronous data to be transmitted, identification information regarding the request frame, and channel information regarding a requested channel.

21. The method of claim 20, wherein the channel information comprises information regarding a requested channel number and information regarding a unit channel length.

22. The method of claim 19, wherein the request frame comprises identification information regarding the at least one wireless device receiving the asynchronous data.

23. The method of claim 19, wherein each of the second fields of the response frame further comprises at least one of identification information regarding asynchronous data, and identification information regarding the request frame.