Terminal station apparatus and band allocation method

Patent metadata

Field	Value
Publication number	US-10555330-B2
Application number	US-201716075205-A
Country	US
Kind code	B2
Filing date	Jan 23, 2017
Priority date	Feb 29, 2016
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

A terminal station device is a terminal station device of a communication system in which a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device. The terminal station device includes: a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information.

First claim

The invention claimed is:

1. A terminal station device of a communication system, wherein, in the communication system, a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device, the terminal station device comprising:
a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information;
wherein the band allocation unit determines a dynamic band allocation cycle which is an allocation target time for the band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device;
wherein the band allocation unit determines the dynamic band allocation cycle, based on a ratio of an interval at which the resource information has been received to an interval at which the high-order device has notified the terminal station device of the resource information.

2. The terminal station device according to claim 1 , further comprising:
an interface that receives the resource information from the high-order device,
wherein the band allocation unit allocates the band, based on an interval at which the interface has received the resource information.

3. The terminal station device according to claim 1 , further comprises
a synchronization state detection unit that determines whether a clock of the terminal station device is synchronized with a clock of the high-order device,
wherein the band allocation unit allocates the band based on a clock of the terminal station device in the case where the synchronization state detection unit determines that the clock of the terminal station device is synchronized, and the band allocation unit allocates the band based on an interval at which the resource information has been received, in the case where the synchronization state detection unit determines that the clock of the terminal station device is not synchronized.

4. The terminal station device according to claim 2 further comprises
a synchronization state detection unit that determines whether a clock of the terminal station device is synchronized with a clock of the high-order device,
wherein the band allocation unit allocates the band based on a clock of the terminal station device in the case where the synchronization state detection unit determines that the clock of the terminal station device is synchronized, and the band allocation unit allocates the band based on an interval at which the resource information has been received, in the case where the synchronization state detection unit determines that the clock of the terminal station device is not synchronized.

5. A terminal station device of a communication system, wherein, in the communication system, a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device, the terminal station device comprising:
a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information;
wherein the band allocation unit determines a dynamic band allocation cycle which is an allocation target time for the band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device;
wherein the band allocation unit determines a new dynamic band allocation cycle, based on a previous dynamic band allocation cycle, an interval at which the resource information has been received, and an interval at which the high-order device has notified the terminal station device of the resource information.

6. The terminal station device according to claim 5 , further comprises
an interface that receives the resource information from the high-order device, wherein the band allocation unit allocates the band, based on an interval at which the interface has received the resource information;
wherein the band allocation unit determines a new dynamic band allocation cycle to be a cycle longer than a previous dynamic band allocation cycle, in a case where an interval at which the resource information has been received is longer than an interval at which the high-order device notifies the terminal station device of the resource information, and
the band allocation unit determines a new dynamic band allocation cycle to be a cycle shorter than a previous dynamic band allocation cycle, in a case where an interval at which the resource information has been received is shorter than an interval at which the high-order device has notified the terminal station device of the resource information.

7. The terminal station device according to claim 5 , further comprising:
a synchronization state detection unit that determines whether a clock of the terminal station device is synchronized with a clock of the high-order device,
wherein the band allocation unit allocates the band based on a clock of the terminal station device in the case where the synchronization state detection unit determines that the clock of the terminal station device is synchronized, and the band allocation unit allocates the band based on an interval at which the resource information has been received, in the case where the synchronization state detection unit determines that the clock of the terminal station device is not synchronized.

8. The terminal station device according to claim 6 , further comprising:
a synchronization state detection unit that determines whether a clock of the terminal station device is synchronized with a clock of the high-order device,
wherein the band allocation unit allocates the band based on a clock of the terminal station device in the case where the synchronization state detection unit determines that the clock of the terminal station device is synchronized, and the band allocation unit allocates the band based on an interval at which the resource information has been received, in the case where the synchronization state detection unit determines that the clock of the terminal station device is not synchronized.

9. A terminal station device of a communication system, wherein, in the communication system, a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device, the terminal station device comprising:
a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information;
wherein the band allocation unit determines a dynamic band allocation cycle which is an allocation target time for the band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device;
wherein the band allocation unit determines a new dynamic band allocation cycle to b

Assignees

• Nippon Telegraph & Telephone

Inventors

• Ou hiroshi
• Kobayashi Takayuki
• Hisano Daisuke
• Shimada Tatsuya

Classifications

• H04W72/1221 Primary

  based on age of data to be sent · CPC title

• H04L12/44

  Star or tree networks · CPC title

• H04J3/16

  in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted (H04J3/17, H04J3/24 take precedence) · CPC title

• H04W56/001 Primary

  Synchronization between nodes · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title