Method and device for controlling forwarding of mobile broadcast and multicast services in passive optical network

Abstract

The invention discloses a method and a device for controlling the forwarding of mobile broadcast and multicast services in a passive optical network. The main idea of the invention is: establishing a mapping relationship between the user port of ONT and a receiving authority of a mobile data service at OLT, namely, determining a mapping relationship between an IP address of femto equipment and a user port (mark) of the ONT in an address distribution flow under a DHCP protocol; and on this basis, the OLT is capable of obtaining a mapping relationship between a receiving authority of a mobile data service of each mobile terminal and an IP address of a femto equipment connected with corresponding mobile terminal from a user management server maintained by a mobile network operator based on an agreement between the mobile network operator and the fixed network operator, and finally establishing the corresponding relationship between the user port and the receiving authority indirectly. Obviously, the way is more flexible and accurate than the way of distributing a static mapping table by the OLT.

Description

technical field [0001] The present invention relates to the forwarding of mobile multicast and broadcast services in passive optical network, in particular to the method and device for controlling the forwarding of multicast and broadcast services. Background technique [0002] Recently, femtocell technology has attracted more and more attention from mobile service providers, thanks to its excellent performance in saving backhaul overhead, helping to expand indoor coverage, and improving service quality. At the same time, Gigabit Passive Optical Network (GPON) has gradually developed into an advantageous substitute for Digital Subscriber Line (DSL) due to the high capacity of fiber-to-users for local network access. Therefore, the femtocellular network using GPON backhaul has become a trend in this field. [0003] The mobile data service represented by mobile TV is one of the services that mobile operators value very much. In order to realize this kind of service, the way ...

AI Technical Summary

Problems solved by technology

[0015] In short, the solution is to let the OLT encrypt the data flow of the mobile data service using complex encryption technologies such as IKE, and pass the key to those ONTs connected to the femtocell device in a confidential way. Therefore, Only ONTs serving femtocell devices can decrypt encrypted data streams, which increases the difficulty of malicious users occupying mobile data service resources to a certain extent

However, after the ONT decrypts the data stream, it still simply selects which user-side ports to forward based on the request of the user equipment, so it is impossible to avoid the theft of mobile data services by illegal users under the ONT with the key

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