Synchronous ethernet network and time allocation method used therein

• US 20060083188A1
• Filed: 05/16/2005
• Published: 04/20/2006
• Est. Priority Date: 10/15/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Song, Jae-Yeon, Kwon, Seo-Won, Lim, Se-Youn
• Application Number:
  US11/129,951
• Publication Number:
  US 20060083188A1
• Time in Patent Office: Days
• US Class Current: 370/314
• CPC Class Codes: H04W 84/02 Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]

Abstract

Disclosed are a synchronous Ethernet network and a time allocation method used therein. The synchronous Ethernet network includes a gateway having a plurality of ports, and a plurality of network points having one-to-one connection with the ports of the gateway in a star topology, the gateway allocating time to the network end points based on a cycle including an asynchronous part and a synchronous part, wherein the gateway prepares a plurality of time slots by dividing the synchronous part in one cycle according to ports and allocates at least one divided time slot to each network end-point participating in communication in a corresponding cycle.

Claims

1. A synchronous Ethernet network comprising:

a gateway which includes a plurality of ports; and

a plurality of network points having one-to-one connection with the ports of the gateway in a star topology, the gateway allocating time to the network end-points based on a cycle including an asynchronous part and a synchronous part, wherein the gateway prepares a plurality of time slots by dividing the synchronous part in one cycle according to the ports and allocates at least one divided time slot to each network end-point participating in communication during a corresponding cycle.

2. The synchronous Ethernet network as claimed in claim 1, wherein the network end points include at least one network attached storage and a plurality of stations, the network attached storage storing real time data.

3. A time allocation method for a synchronous Ethernet network including a gateway and a plurality of network end points, the gateway allocating time based on a cycle including an asynchronous part and a synchronous part, the network end-points connected to the gateway, the time allocation method comprising the steps of:

(a) preparing a plurality of time slots by multi-dividing the synchronous part in one cycle; and

(b) allocating at least one divided time slot to each network end-point communicating in a corresponding cycle.

4. The time allocation method as claimed in claim 3, wherein, in step (b), the synchronous part is divided by the number of the ports of the gateway.

5. The time allocation method as claimed in claim 3, wherein, in step (b), only one divided time slot is allocated to each network end-point.

6. The time allocation method as claimed in claim 3, wherein, in step (b), the divided time slots are uniformly allocated to the network end-points communicating in a corresponding cycle.

7. The time allocation method as claimed in claim 3, wherein, in step (b), the divided time slots are allocated to each of network end-points communicating in a corresponding cycle in proportion to the number of destinations corresponding to each network end-point.