Service data mapping method and device, composite mapping method
A technology of business data and mapping method, which is applied in the field of communication, can solve problems such as the complexity of the network system, and achieve the effect of simple and easy implementation
Active Publication Date: 2011-06-08
HUAWEI TECH CO LTD
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Problems solved by technology
[0003] In the process of implementing the present invention, the inventor found that the prior art has at least the following disadvantages: since the mapping is implemented by adjusting the opportunity byte, it can only adapt to the mapping of a small part of rate-level OTN service data to VCs, and different OTN services need to use Different VC containers and different mapping methods complicate the network system
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0027] An embodiment of the present invention provides a service data mapping method. The data structure carrying the mapped service data includes a payload area, and the payload area is divided into M service blocks according to the data size, where M is a natural number, and each service block includes a payload Value area and data area. The value in the payload value area is used to indicate the amount of valid service data transmitted in the next service block; ...
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The embodiment of the invention discloses a business data mapping method, the business data is carried by a mapping frame, the payload area of the mapping frame comprises at least two service blocks which comprise payload value areas. The method comprises the following steps: the payload value is calculated according to the services to be transmitted at present; the payload value is interpolated in the payload value areas of the mapping frame corresponding to the service blocks; and business data of payload value size carried by the previous service block is extracted to be interpolated in the present service block. Accordingly, the embodiment of the invention also discloses a business data mapping device and a de-mapping method, which can be applied to the mapping and de-mapping of business data of multiple speeds and can realize the mapping and the de-mapping of various types of business data by adopting one data frame data structure, thereby realizing simple and easy access to a network system.
Description
technical field [0001] The invention relates to the communication field, in particular to a service data mapping and complex mapping method and device. Background technique [0002] With the bandwidth demand brought about by the increase in human demand for various services such as voice, data, and multimedia, OTN (Optical Transport Network, Optical Transport Network) has gradually become the core platform for carrying services of various operators. Under the condition that the emerging OTN network is widely used, there is a requirement for coexistence, integration and intercommunication between the OTN network and the existing SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) network. OTN networks usually use OTU (Optical Channel Transport Unit, Optical Channel Transport Unit) data frames to transmit service data. In SDH networks, VC (Virtual Container, Virtual Container) service data is usually used to transmit service data to SDH networks through OTN netw...
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IPC IPC(8): H04L29/06H04J3/16
Inventor 尹辉
Owner HUAWEI TECH CO LTD