Communication apparatus, communication system, and network establishing method
First Claim
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1. A communication apparatus compatible with a first communication standard and a second communication standard being different from the first communication standard, the communication apparatus comprising:
- a participating unit configured to participate in a wireless network compatible with the first communication standard, the wireless network having been established in advance by a first other communication device which is not compatible with the second communication standard;
a determining unit configure to determine that other communication device being not compatible with the second communication standard including at least the first other communication device has left the wireless network in which the communication apparatus is participating; and
an establishing unit configured to leave the wireless network compatible with the first communication standard in responding to a result of a determination of the determining unit, and newly establish a wireless network compatible with the second communication standard;
a transmission unit configured to transmit a switching signal which indicates switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard; and
a judging unit configured to judge whether or not other communication device compatible with the second communication standard rejects the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard based on a response to the switching signal, from the other communication device compatible with the second communication standard,wherein the establishing unit newly establishes a wireless network compatible with the second communication standard when the other communication device compatible with the second communication standard does not reject the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard.
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Abstract
A communication apparatus determines whether another communication apparatus participating in a network established in accordance with a first communication standard is also compatible with a second communication standard. The communication apparatus detects leaving of the network by another communication apparatus incompatible with the second communication standard. The communication apparatus establishes a network that adheres to the second communication standard, depending on the detection result.
7 Citations
20 Claims
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1. A communication apparatus compatible with a first communication standard and a second communication standard being different from the first communication standard, the communication apparatus comprising:
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a participating unit configured to participate in a wireless network compatible with the first communication standard, the wireless network having been established in advance by a first other communication device which is not compatible with the second communication standard; a determining unit configure to determine that other communication device being not compatible with the second communication standard including at least the first other communication device has left the wireless network in which the communication apparatus is participating; and an establishing unit configured to leave the wireless network compatible with the first communication standard in responding to a result of a determination of the determining unit, and newly establish a wireless network compatible with the second communication standard; a transmission unit configured to transmit a switching signal which indicates switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard; and a judging unit configured to judge whether or not other communication device compatible with the second communication standard rejects the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard based on a response to the switching signal, from the other communication device compatible with the second communication standard, wherein the establishing unit newly establishes a wireless network compatible with the second communication standard when the other communication device compatible with the second communication standard does not reject the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communication system comprising a plurality of communication devices, at least one of the plurality of communication devices being compatible with a first communication standard and a second communication standard being different from the first communication standard, the at least one of the plurality of communication devices including:
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a participating unit configured to participate in a wireless network compatible with the first communication standard, the wireless network been established in advance by a first other communication device which is not compatible with the second communication standard; a determining unit configure to determine that other communication device being not compatible with the second communication standard including at least the first other communication device has left the wireless network in which the communication apparatus is participating; and an establishing unit configured to leave the wireless network compatible with the first communication standard in responding to a result of a determination of the determining unit, and newly establish a wireless network compatible with the second communication standard; a transmission unit configured to transmit a switching signal which indicates switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard; and a judging unit configured to judge whether or not other communication device compatible with the second communication standard rejects the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard based on a response to the switching signal, from the other communication device compatible with the second communication standard, wherein the establishing unit newly establishes a wireless network compatible with the second communication standard when the other communication device compatible with the second communication standard does not reject the switching from a wireless network compatible with the first, communication standard to a network compatible with the second communication standard.
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10. A wireless network establishing method in a communication apparatus compatible with a first communication standard and a second communication standard being different from the first communication standard comprising the steps of:
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participating in a wireless network compatible with the first communication standard, the wireless network having been established in advance by a first other communication device which is not compatible with the second communication standard; determining that other communication device being not compatible with the second communication standard including at least the first other communication device has left the wireless network in which the communication apparatus is participating; leaving the wireless network compatible with the first communication standard in responding to a result of a determination of the step of determining; and newly establishing a wireless network compatible with the second communication standard; transmitting a switching signal which indicates switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard; and judging whether or not other communication device compatible with the second communication standard rejects the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard based on a response to the switching signal, from the other communication device compatible with the second communication standard, wherein the establishing newly establishes a wireless network compatible with the second communication standard when the other communication device compatible with the second communication standard does not reject the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard.
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11. A computer-readable non-transitory-recording medium storing a program for causing a computer to execute a wireless network establishing method in a communication apparatus compatible with a first communication standard and a second communication standard being different from the first communication standard comprising the steps of:
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participating in a wireless network compatible with the first communication standard, the wireless network having been established in advance by a first other communication device which is not compatible with the second communication standard; determining that other communication device being not compatible with the second communication standard including at least the first other communication device has left the wireless network in which the communication apparatus is participating; leaving the wireless network compatible with the first communication standard in responding to a result of a determination of the step of determining; and newly establishing a wireless network compatible with the second communication standard; transmitting a switching signal which indicates switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard; and judging whether or not other communication device compatible with the second communication standard rejects the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard based on a response to the switching signal, from the other communication device compatible with the second communication standard, wherein the establishing newly establishes a wireless network compatible with the second communication standard when the other communication device compatible with the second communication standard does not reject the switching from a wireless network compatible with the first communication standard to a network compatible with the second communication standard.
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12. A communication apparatus comprising:
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a participating unit configured to participate in a first wireless network compatible with a first communication standard; a communication unit configured to communicate in the first wireless network, with a first communication terminal compatible with a second communication standard, which supports a communication speed being higher than a communication speed supported by the first communication standard, and a second communication terminal incompatible with the second communication standard; a detection unit configured to detect that the second communication terminal has left the first wireless network; a leaving unit configured to leave the first wireless network in a case that the detection unit detects that the second communication terminal has left the first wireless network; an establishing unit configured to newly establish a second network compatible with the second communication standard in a case that the detection unit detects that the second communication terminal has left the first wireless network; and a transmission device which transmits a switching signal that indicates switching from the first network compatible with the first network to the second network compatible with the second network wherein the communication unit communicates with the first communication terminal in the second network in a case that the second network has been newly established by the establishing unit, and wherein said establishing unit makes said communication apparatus to leave from the first wireless network, and newly establishes the second network compatible with the second communication standard based on a reply from the other communication terminal corresponding to the switching signal transmitted by the transmission device. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A wireless network establishing method in a communication apparatus, the method comprising the steps of:
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participating in a first wireless network compatible with a first communication standard; communicating in the first wireless network, with a first communication terminal compatible with a second communication standard different from the first communication standard, which supports a communication speed being higher than a communication speed supported by the first communication standard, and a second communication terminal incompatible with the second communication standard; detecting that the second communication terminal has left the first wireless network; leaving the first wireless network in a case that the detection unit detects that the second communication terminal has left the first wireless network; newly establishing a second network compatible with the second communication standard in a case that the detection unit detects that the second communication terminal has left the first wireless network; and transmitting a switching signal that indicates switching from the first network compatible with the first network to the second network compatible with the second network wherein the communicating step comprises communicating with the first communication terminal in the second network in a case that the second network has been newly established by the establishing unit, and wherein the establishing step causes said communication apparatus to leave the first wireless network, and newly establishes the second network compatible with the second communication standard based on a reply from the other communication terminal corresponding to the switching signal transmitted by the transmission device. - View Dependent Claims (20)
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Specification