Method and apparatus of processing wireless printing based on wireless LAN

• US 8,681,353 B2
• Filed: 04/15/2005
• Issued: 03/25/2014
• Est. Priority Date: 06/25/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ryu, Seok, Lee, Kwang-chul, Rhim, Eun-hee
• Primary Examiner(s): Backer, Firmin
• Assistant Examiner(s): PACHOL, NICHOLAS C
• Application Number:
  US11/106,656
• Publication Number:
  US 20050286075A1
• Time in Patent Office: 3,266 Days
• Field of Search: 709/249, 709/223, 709/220, 709/221, 370/338, 370/331, 358/1.15, 358/402, 399/8, 713/154, 455/418, 455/435.1, 710/8, 710/62
• US Class Current: 358/1.15
• CPC Class Codes: G06F 3/122 with regard to computing resources, e.g. memory, CPU
• CPC Class Codes: G06F 3/1224 Client or server resources management
• CPC Class Codes: G06F 3/1226 Discovery of devices having required properties
• CPC Class Codes: G06F 3/1286 via local network
• CPC Class Codes: G06F 3/1292 Mobile client, e.g. wireless printing
• CPC Class Codes: H04L 2101/622 Layer-2 addresses, e.g. medium access control [MAC] addresses
• CPC Class Codes: H04L 61/4541 Directories for service discovery
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A wireless printing system and method based on IEEE 802.11 are provided. A method of requesting a print job, includes: scanning a printer that functions as an AP in a wireless LAN; obtaining an address of the printer from the scanned result; and requesting a predetermined print job by having the obtained address as a destination. The method enables to locate a printer that functions as an Access Point (AP) while stations associate with a Basic Service Set (BSS) in a wireless Local Area Network (LAN) based on IEEE 802.11.

Claims

1. A method of requesting a print job at a station, the method comprising:

scanning for a printer that functions as an Access Point (AP) in a wireless Local Area Network (LAN) by broadcasting a probe request frame according to an IEEE 802.11 standard;

automatically obtaining;

in response to the broadcasting, an address of the printer, by receiving a probe response frame in the IEEE 802.11 standard, the address being a Media Access Control (MAC) address of the printer;

transmitting an association request frame generated using the MAC address of the printer to the printer;

receiving from the printer, an association response frame in response to the association request frame;

generating a print job request by utilizing the address of the printer obtained by the scanning as a destination of the print job; and

transmitting the print job request to the printer obtained by the scanning,

wherein the print job is requested by utilizing the MAC address of the printer included in the probe response frame, as the destination of the print job.

2. The method of claim 1, wherein the address is a physical address of a network card installed in the printer.

3. The method of claim 1, further comprising:

generating a payload recognized by a session allotted for the print job; and

wherein the print job is requested by generating data to be contained in the payload.

4. The method of claim 1, further comprising:

generating a payload recognized by a Transmission Control Protocol (TCP) port allotted for the print job,

wherein the print job is requested by generating data to be contained in the payload.

5. The method of claim 4, further comprising:

obtaining an Internet Protocol (IP) address corresponding to the address; and

generating a packet including the payload, wherein the packet is transmitted based on the IP address.

6. The method of claim 5, wherein the obtaining the IP address is performed by obtaining an IP address corresponding to the address according to a Reverse Address Resolution Protocol (RARP).

7. The method of claim 1, further comprising:

performing authentication with the printer using the address of the printer obtained by the scanning,

wherein the generating the print job request is performed when the authentication are completed.

8. The method of claim 1, wherein the station obtains the address of the printer from a source address field of the probe response frame.

9. A station comprising:

a scanning unit which scans for a printer that functions as an Access Point (AP) in a wireless Local Area Network (LAN) by broadcasting a probe request frame according to an IEEE 802.11 standard;

an address obtaining unit which automatically obtains an address of the printer scanned for by the scanning unit by receiving a probe response frame in the IEEE 802.11 standard, the address being a Media Access Control (MAC) address of the printer;

an association performing unit which transmits an association request frame generated using the MAC address of the printer to the printer and receives an association response frame from the printer in response to the association request frame; and

a print job generating unit which generates a print job request by utilizing the address of the printer obtained in the address obtaining unit as a destination of the print job and transmits the print job request to the printer,

wherein the print job is requested by utilizing the MAC address of the printer included in the probe response frame, as the destination of the print job.

10. The station of claim 9, wherein the address is a physical address of a network card installed in the printer.

11. A method of processing a print job at a printer, the method comprising:

recognizing a station that scans for a printer that functions as an Access Point (AP) in a wireless Local Area Network (LAN) by receiving a probe request frame according to an IEEE 802.11 standard;

automatically providing the station with an address of the printer by sending a probe response frame in the IEEE 802.11 standard to the station, the address being a Media Access Control (MAC) address of the printer;

receiving an association request frame generated using the MAC address of the printer from the station;

transmitting an association response frame in response to the association request frame to the station; and

processing a requested print job by utilizing the address as a destination of the requested print job,

wherein the print job is requested by utilizing the MAC address of the printer included in the probe response frame, as the destination of the print job.

12. The method of claim 11, wherein the address is a physical address of a network card installed in the printer.

13. The method of claim 11, further comprising:

extracting data regarding the requested print job from a payload recognized by a session allotted for the requested print job,

wherein the processing the requested print job is performed by processing the data which is extracted.

14. The method of claim 11, further comprising:

extracting data regarding the requested print job from a payload recognized by a Transmission Control Protocol (TCP) allotted for the requested print job,

wherein the processing the requested print job is performed by processing the data which is extracted.

15. The method of claim 14, further comprising:

providing an Internet Protocol (IP) address corresponding to the address; and

extracting the payload from a packet transmitted based on the IP address.

16. A printer comprising:

a scan recognizing unit which recognizes a station that scans for a printer that functions as an Access Point (AP) in a wireless Local Area Network (LAN) by receiving a probe request frame according to an IEEE 802.11 standard;

an address providing unit which automatically provides the station recognized by the scan recognizing unit with an address of the printer in the IEEE 802.11 standard, the address being a Media Access Control (MAC) address of the printer; and

an association performing unit which receives an association request frame generated using the MAC address of the printer from the station and transmits an association response frame in response to the association request frame to the station;

a print job processing unit processing a requested print job by utilizing the address provided in the address providing unit as a destination of the requested print job,

wherein the print job is requested by utilizing the MAC address of the printer included in the probe response frame, as the destination of the print job.

17. The printer of claim 16, wherein the address is a physical address of a network card installed in the printer.

18. A non-transitory computer readable medium having recorded thereon a computer readable program for a method of requesting a print job at a station, wherein the method comprises:

scanning for a printer that functions as an Access Point (AP) in a wireless Local Area Network (LAN) by broadcasting a probe request frame according to an IEEE 802.11 standard;

automatically obtaining, in response to the broadcasting, an address of the printer by receiving a probe response frame in the IEEE 802.11 standard, the address being a Media Access Control (MAC) address of the printer;

transmitting an association request frame generated using the MAC address of the printer to the printer;

receiving from the printer, an association response frame in response to the association request frame;

generating a print job request by utilizing the address of the printer obtained by the scanning as a destination of the print job; and

transmitting the print job request to the printer obtained by the scanning,

wherein the print job is requested by utilizing the MAC address of the printer included in the probe response frame, as the destination of the print job.

19. A non-transitory computer readable medium having recorded thereon a computer readable program for a method of processing a print job at a printer, wherein the method comprises:

recognizing a station that scans for a printer that functions as an Access Point (AP) in a wireless Local Area Network (LAN) by receiving a probe request frame according to an IEEE 802.11 standard;

automatically providing the station which is recognized with an address of the printer by sending a probe response frame in the IEEE 802.11 standard to the station, the address being a Media Access Control (MAC) address of the printer;

receiving an association request frame generated using the MAC address of the printer from the station;

transmitting an association response frame in response to the association request frame to the station; and

processing a requested print job by utilizing the address as a destination of the requested print job,

wherein the print job is requested by utilizing the MAC address of the printer included in the probe response frame, as the destination of the print job.