Time slot assignment method and network communication device

A time slot allocation and time slot technology, which is applied in the field of network communication, can solve problems such as affecting business, link or node failure, and inconvenience, so as to reduce the utilization rate of system overhead, reduce the generation of fragmented time slots, and avoid The effect of finishing work

CN101212289BInactive Publication Date: 2010-05-12HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2010-05-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention relates to a technical field of network communication and in particular discloses a method for distributing time slots. The invention includes the following processes:when a node receives a request message of time slot distribution of a service and searches for the usable time slots according to the request message; a 4n time slot unit grouping is taken as the searching object and every time slot is browsed in the 4n time slot unit grouping; if a usable time slot is found out, the usable time slot is distributed to the corresponding service of the request message; if the n is a integer greater than zero, capacity of the 4n time slot unit grouping is not less than the time slot capacity needed by the service. The embodiment of the invention also discloses anetwork communication device used for realizing the time slot distribution. By using the proposal of the invention, the reasonable distribution to the time slot can be realized; the generation of fragment time slots can be effectively reduces; the arrangement work for the time slot in the late stage can be avoided, thus reducing usage rate of additional spending of the system due to the arrangement of the fragment time slots.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a time slot allocation method; the invention also relates to a network communication device for realizing time slot allocation. Background technique

[0002] With the rapid development of network interconnection technology and communication requirements, Automatically Switched Optical Network (ASON) technology has emerged. ASON is a new generation of intelligent optical network that completes automatic switching functions under routing and signaling control. It can also be regarded as an optical transport network with standardized intelligence. Intelligent optical network is an optical fiber communication technology that emerged in the last century and has only been widely used by operators in this century. Compared with traditional SDH networks, intelligent optical networks can make full use of existing network resources and provide more efficient network manageme...

Examples

Embodiment 1

[0027] like figure 1 as shown, figure 1 It is a flow chart of the time slot allocation method in Embodiment 1 of the present invention, and the specific steps are as follows:

[0028] S101. Generate a time slot bitmap by the SC module.

[0029] When the node receives the label allocation request message sent by the signaling module, the message requires the SC module to allocate time slots. The SC module first searches for the allocation status of each time slot in the specified segment, and generates a time slot bit map. If the found time slot is in an idle state, the time slot can be allocated, and the corresponding value of the time slot bitmap is 1; if the found time slot has been allocated, the corresponding value of the time slot bitmap is 0.

[0030] S102. The current node initiates a time slot allocation request to the SC module, that is, allocates an available time slot for the current service request.

[0031] S103. After receiving the time slot allocation request...

Embodiment 2

[0041] First, the time slot unit group with a small number of time slots is used as the search object, and then the time slot unit group with a large number of time slots is used as the search object to search for fragmented time slots that can be allocated to services. like image 3 as shown, image 3 It is a flowchart of a time slot allocation method based on a new service or an optimized service in Embodiment 2 of the present invention.

[0042] The content of S201 is similar to that of the aforementioned step S101 and will not be repeated here.

[0043] S202. The current node initiates a time slot allocation request for a new service or optimized service to the SC module.

[0044] S203, after the SC module receives the time slot allocation request of the newly created business or optimized business, according to the time slot bitmap calculated and generated in step S201 and the business of requesting time slot allocation in step S202, the time slot unit with the smaller ...

Embodiment 3

[0052] First take the time slot unit group with a larger number of time slots as the search object, and then use the time slot unit group with a smaller number of time slots as the search object, and search for the time slots in the all free time slot unit group as the available time slots allocated to the business . like Figure 4 as shown, Figure 4 It is a flowchart of a method for allocating time slots based on service rerouting in Embodiment 3 of the present invention.

[0053] The content of S301 is similar to that of the aforementioned step S101 and will not be repeated here.

[0054] S302. The current node initiates a time slot allocation request for service rerouting to the SC module.

[0055]S303, after the SC module receives the time slot allocation request for service rerouting, according to the time slot bitmap calculated and generated in step S301 and the business of requesting time slot allocation in step S302, group the time slot units from the time slot uni...