Communication device and method for controlling communication device

• US 8,761,049 B2
• Filed: 07/06/2012
• Issued: 06/24/2014
• Est. Priority Date: 02/19/2009
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Hamada, Masashi
• Primary Examiner(s): CHO, HONG SOL
• Application Number:
  US13/542,822
• Publication Number:
  US 20120269184A1
• Time in Patent Office: 718 Days
• Field of Search: 370/254, 370/255, 370/328, 370/338, 370/389, 370/401
• US Class Current: 370/254
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Abstract

A communication apparatus is provided which includes a recognition unit configured to recognize a service of communication using a packet to which a first priority higher than a second priority is set, provided by an external apparatus; a generation unit configured to generate a packet to be transmitted to the external apparatus and to which the first priority is set, in a case that the service is recognized by the recognition unit, and a transmission unit configured to transmit the packet generated by the generation unit for establishing a connection with the external apparatus, wherein the generation unit generates a packet to be transmitted to the external apparatus and to which the second priority is set, in a case that the recognition unit does not recognize a service of communication using a packet to which the first priority is set.

Claims

1. A communication apparatus comprising:

a recognition unit configured to recognize a service provided by another apparatus;

a connection unit configured to establish a connection with the another apparatus using a packet to which a first priority is set according to a predetermined connection procedure; and

a transmission unit configured to transmit, after the connection is established by the connection unit, a packet to which the first priority or a second priority higher than the first priority is set to the another apparatus based on the service recognized by the recognition unit,

wherein, in a case where the transmission unit transmits a packet to which the second priority is set, the connection unit is configured to establish a connection with the another apparatus using a packet to which the second priority is set instead of a packet to which the first priority is set.

2. The communication apparatus according to claim 1, wherein, in a case where the transmission unit transmits the packet to which the first priority is set, the connection unit is configured to establish a connection with the another apparatus using the packet to which the first priority is set.

3. The communication apparatus according to claim 1, further comprising a determination unit configured to determine a predetermined service to set the second priority to a packet among the services recognized by the recognition unit.

4. The communication apparatus according to claim 3, wherein, in a case where the predetermined service is not recognized by the recognition unit, the packet to which the first priority is set is transmitted.

5. The communication apparatus according to claim 1, wherein the recognition unit is configured to recognize a deletion or an appearance of the service.

6. The communication apparatus according to claim 1, wherein, in a case where the transmission unit transmits a packet to which a third priority lower than the first priority is set to the another apparatus, the connection unit is configured to establish a connection with the another apparatus using the packet to which the first priority is set.

7. The communication apparatus according to claim 1, wherein the predetermined connection procedure is in compliance with Transmission Control Protocol (TCP).

8. The communication apparatus according to claim 1, wherein the communication apparatus is configured to wirelessly communicate.

9. The communication apparatus according to claim 1, wherein the communication apparatus is configured to communicate in compliance with an Institute of Electrical and Electronics Engineers (IEEE) 802.11 series.

10. The communication apparatus according to claim 1, wherein the first and second priorities are predetermined for each service to be provided for a user by communication between the communication apparatus and the another apparatus.

11. A method of controlling a communication apparatus, the method comprising:

recognizing a service provided by another apparatus;

establishing a connection with the another apparatus using a packet to which a first priority is set according to a predetermined connection procedure; and

transmitting, after the connection is established, a packet to which the first priority or a second priority higher than the first priority is set to the another apparatus based on the service recognized,

wherein, in a case where a packet to which the second priority is set is transmitted, a connection with the another apparatus is established using a packet to which the second priority is set instead of a packet to which the first priority is set.

12. A storage medium storing a program for causing a computer to perform a method of controlling a communication apparatus, the method comprising:

recognizing a service provided by another apparatus;

establishing a connection with the another apparatus using a packet to which a first priority is set according to a predetermined connection procedure; and

transmitting, after the connection is established, a packet to which the first priority or a second priority higher than the first priority is set to the another apparatus based on the service recognized,

wherein, in a case where a packet to which the second priority is set is transmitted, a connection with the another apparatus is established using a packet to which the second priority is set instead of a packet to which the first priority is set.