التفاصيل البيبلوغرافية
| العنوان: |
Packet communication device and method |
| Document Number: |
20050180430 |
| تاريخ النشر: |
August 18, 2005 |
| Appl. No: |
11/057152 |
| Application Filed: |
February 15, 2005 |
| مستخلص: |
A packet receiver receives packets from other communication devices, and a resource reservation management table stores information of packets that needs resource reservation of a network. A resource allocation request unit detects a packet that corresponds to information of a reservation rule entry stored in the resource reservation management table, and makes a resource allocation request to the network. A communication period selecting unit selects a communication period to transmit the packet, according to the progress of situation of the resource allocation request to the network. A packet transmitter transmits the packet using the communication period selected from either of a first communication period and a second communication period. |
| Inventors: |
Kawaguchi, Yuichi (Kasuya-Gun, JP); Sakata, Yoshifumi (Kasuga, JP) |
| Claim: |
1. A packet communication device operable to compose a network substantially supporting a first communication period in which communications may be controlled at least by packet priority and may be carried out without reservation of network resources, and a second communication period in which communications may not be carried out without reservation of the network resources, said packet communication device comprising: a packet receiver operable to receive packets; a resource reservation information storage unit operable to store information on the reservation of the network resources; a resource allocation request unit operable to refer to the information stored in said resource reservation information storage unit and also operable to issue resource allocation request to the network to transmit the packets in the second communication period when the packets received by said packet receiver are judged to need reserving the network resources; a communication period selecting unit operable to select either of the first communication period and the second communication period to transmit the packets; and a packet transmitter operable to transmit the packets using the communication period selected by said communication period selecting unit, wherein said communication period selecting unit is operable to select the first communication period before completion of reserving the network resources in response to the resource allocation request issued by said resource allocation request unit, and wherein said communication period selecting unit is operable to select the second communication period after the completion of reserving the network resources. |
| Claim: |
2. The packet communication device as defined in claim 1, wherein said packet receiver comprises a plurality of packet receiving units, and wherein priority of a packet that needs reserving the network resources is determined depending on which of said packet receiving units receives the packet that needs reserving the network resources. |
| Claim: |
3. The packet communication device as defined in claim 1, wherein said packet communication device further comprises a resource measuring unit operable to measure reservation parameters currently necessary for packets that need reserving the network resources according to the information stored in said resource reservation information storage unit. |
| Claim: |
4. The packet communication device as defined in claim 3, wherein said packet communication device further comprises a resource monitoring unit operable to judge whether re-reservation of the network resources is necessary for packets that need reserving the network resources according to the information stored in said resource reservation information storage unit, by comparing the reservation parameters included in the resource allocation request issued by said resource allocation request unit and the currently necessary reservation parameters determined by said resource measuring unit, and wherein when said resource monitoring unit judges that the re-reservation of the network resources is necessary, said resource allocation request unit is operable to issue resource allocation request based on the currently necessary reservation parameters. |
| Claim: |
5. The packet communication device as defined in claim 4, wherein, before completion of reserving the network resources in response to the resource allocation request based on the currently necessary reservation parameters issued by said resource allocation request unit, said packet communication device is operable to transmit the packets that need reserving the network resources using both of the first communication period and the second communication period only when the packets cannot be transmitted in the second communication period alone. |
| Claim: |
6. A packet communication device operable to compose a network substantially supporting a first communication period in which communications may be controlled at least by packet priority and may be carried out without reservation of network resources, and a second communication period in which communications may not be carried out without reservation of the network resources, said packet communication device comprising: a packet receiver operable to receive packets; a packet transmitter operable to transmit the packets received by said packet receiver in either of the first communication period and the second communication period in accordance with kinds of the packets; and a resource allocation request unit operable to issue resource allocation request to the network, thereby transmitting packets that needs reserving the network resources in the second communication period, wherein said packet transmitter is operable, according to the progress of the resource allocation request, to select either of the first and second communication periods to transmit the packets that need reserving the network resources. |
| Claim: |
7. The packet communication device as defined in claim 6, wherein said packet transmitter is operable, according to the progress of the resource allocation request, to switch from the first communication period to the second communication period to transmit the packets that need reserving the network resources. |
| Claim: |
8. A packet communication method to use a network substantially supporting a first communication period in which communications may be controlled at least by packet priority and may be carried out without reservation of network resources, and a second communication period in which communications may not be carried out without reservation of the network resources, the packet communication method including: receiving packets; storing information on the reservation of the network resources; referring to the information stored in said resource reservation information storage unit; issuing resource allocation request to the network to transmit the packets in the second communication period when the packets received in said receiving need reserving the network resources; selecting either of the first communication period and the second communication period to transmit the packets; and transmitting the packets using the communication period selected by said selecting, wherein said selecting selects the first communication period before completion of reserving the network resources, and wherein said selecting selects the second communication period after the completion of reserving the network resources. |
| Current U.S. Class: |
370395/410 |
| رقم الانضمام: |
edspap.20050180430 |
| قاعدة البيانات: |
USPTO Patent Applications |