Method and device for managing network topology structure of machine to machine network

• US 20130010646A1
• Filed: 06/04/2010
• Published: 01/10/2013
• Est. Priority Date: 03/25/2010
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Liu, Yang, Li, Nan, Chen, Yuqin, Xie, Feng, Chen, Lin, Xu, Ling, Fang, Huiying
• Granted Patent: US 8,837,327 B2
• Time in Patent Office: Days
• US Class Current: 370/255
• CPC Class Codes: H04L 41/042 comprising distributed management centres cooperatively managing the network
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 45/42 Centralised routing
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 40/248 Connectivity information update
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y04S 40/00 Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
• CPC Class Codes: Y04S 40/18 Network protocols supporting networked applications, e.g. including control of end-device applications over a network

Abstract

The disclosure discloses a method for managing network topology structure of a Machine to Machine (M2M) network. The method mainly includes: a control station of the M2M network obtains wireless link information of the M2M network; the control station completes establishment and/or adjustment of the network topology structure of the M2M network according to the obtained wireless link information. The disclosure also provides a device for managing network topology structure of an M2M network. By the disclosure, performing self-adaptive management on numerous terminals can be realized by the M2M network; by applying the disclosure to the wireless network management of the M2M network, manpower cost is saved and working efficiency is improved, and also it is of important significance to the smooth development of the telecom operation.

Claims

1. A method for managing network topology structure of a Machine to Machine (M2M) network, comprising:

obtaining wireless link information of the M2M network by a control station of the M2M network;

completing, according to the obtained wireless link information, establishment and/or adjustment of network topology structure of the M2M network by the control station.

2. The method according to claim 1, wherein the process of obtaining wireless link information of the M2M network comprise:

the control station obtains wireless link information of links between the control station and subordinate nodes directly connected with the control station;

each sub-control station in subordinate nodes of the control station obtains wireless link information of links between each sub-control station and subordinate nodes directly connected with each sub-control station, and reports the obtained wireless link information to the control station.

3. The method according to claim 2, wherein the process that the control station or sub-control station obtains wireless link information of links between the control station or sub-control station and subordinate nodes thereof comprises:

the control station or each sub-control station sends a detection signal to subordinate nodes directly connected with the control station or each sub-control station via a downlink;

the subordinate nodes detect the state of links, and feed back detection results containing wireless link information to the control station or sub-control station via an uplink.

4. The method according to claim 2, wherein the way of reporting wireless link information to the control station by the sub-control station comprises:

periodically reporting, and/or reporting after periodically polling of the control station, and/or reporting in response to request of the control station, and/or non-periodically initiative reporting.

5. The method according to claim 1, wherein the process that the control station completes establishment of network topology structure of the M2M network comprises:

the control station identifies a sub-control station and/or terminal that newly accesses the network according to the obtained wireless link information, and completes access of a new terminal and/or new gateway to the network and access of the new terminal to the sub-control station.

6. The method according to claim 1, wherein the process that the control station completes adjustment of network topology structure of the M2M network comprises:

the control station completes handover of each terminal in the M2M network and access of a gateway to the network and/or quit of a gateway from the network according to the obtained wireless link information.

7. The method according to claim 1, wherein the process of obtaining wireless link information of the M2M network comprises:

after accessing the network, a sending node in the M2M network sends a detection is signal to each receiving node;

after receiving the detection signal, each receiving node feeds back signal receiving strength of the detection signal which serves as wireless link information to each sending node;

each sending node performs operation on the signal receiving strength fed back by each receiving node, and sends an operation result to the control station.

8. The method according to claim 7, wherein the process that the control station completes establishment and/or adjustment of network topology structure of the M2M network comprises:

the control station selects a node with the most balanced signal receiving strength as the sub-control station, or selects a node with the maximum signal receiving strength as the sub-control station, according to the operation result sent by each sending node.

9. The method according to claim 1, wherein when it is needed to replace a sub-control station or a sub-control station quits from the M2M network, the management of network topology structure of the M2M network comprise:

the control station obtains wireless link information of the M2M network, and according to the wireless link information, adjusts the sub-control station of the M2M network and determines a new sub-control station, so that the new sub-control station obtains the control over subordinate nodes of the original sub-control station.

10. The method according to claim 1, further comprising:

after establishing and/or adjusting the network topology structure, the control station sends the network topology information obtained during establishment of the network topology structure and/or network topology information updated during adjustment of the network topology structure to subordinate nodes or each node in the M2M network.

11. The method according to claim 10, wherein the way of sending the network topology information comprises:

broadcast, and/or multicast, and/or unicast.

12. The method according to claim 1, wherein the wireless link information comprises one or more of the following parameters:

channel signal to interference ratio and/or signal to noise ratio and/or signal to interference plus noise ratio, packet loss ratio and/or packet error ratio of wireless links, processing of wireless links and/or transmission delay, actual throughput of wireless links, resources configured for wireless links, signal receiving strength information of terminals, signal sending strength information of terminals, and information indicating whether terminal communication links exist.

13. A device for managing network topology structure of a Machine to Machine (M2M) network, comprising:

an obtaining unit and a processing unit, wherein;

the obtaining unit is configured to obtain wireless link information of the M2M network;

the processing unit is configured to complete establishment and/or adjustment of network topology structure of the M2M network according to the wireless link information obtained by the obtaining unit.