TRAFFIC OPTIMIZATION IN A COMMUNICATIONS NETWORK

摘要

Methods of, and network nodes for, optimizing downlink network traffic which is delivered to a client (101) via a Radio Access Network (RAN) (102) are provided. A first method comprises, at a first network node (103), receiving from the client a request for content (211, 212), including an indication (213) pertaining to a first traffic optimization functionality of the first network node into the request, and forwarding the request (214) to a second network node (104) located upstream. The method further comprises, at the second network node, receiving the request (214), determining whether the request comprises the indication (215), and forwarding the request (216) to a server. The method further comprises, at the second network node, determining whether the downlink traffic relates to a request comprising the indication (222), optimizing the downlink traffic (222), and forwarding the downlink traffic (223) to the first network node. In optimizing the downlink traffic (222), traffic optimization functionality which corresponds to the first traffic optimization functionality is omitted. The method further comprises, at the first network node, receiving the downlink traffic (223), optimizing the downlink traffic (224), and forwarding the downlink traffic (225, 226) to the client.

主权项

1. A method of optimizing traffic in a communications network comprising a first network node and a second network node, wherein the traffic is delivered to a client of the communications network via a Radio Access Network, (RAN), the method comprising:
the first network node receiving from the client a request for content, the first network node including an indication into the request, thereby producing a modified request, the indication pertaining to a first traffic optimization functionality of the first network node, and the first network node forwarding the modified request to the second network node, the second network node being located upstream with respect to the first network node and being arranged for optimizing traffic according to a second traffic optimization functionality which at least in part corresponds to the first traffic optimization functionality, the second network node receiving the modified request from the first network node, the second network node determining whether the modified request comprises the traffic optimization functionality indication, the second network node receiving downlink traffic; the second network node determining whether the downlink traffic relates to a said modified request comprising the traffic optimization functionality indication, the second network node optimizing the downlink traffic, wherein traffic optimization functionality which corresponds to the first traffic optimization functionality is omitted as a result of the second network node determining that the downlink traffic relates to said modified request comprising the traffic optimization functionality indication, and the second network node forwarding the downlink traffic to the first network node, and the first network node receiving the downlink traffic from the second network node, the first network node optimizing the downlink traffic according to the first traffic optimization functionality, and the first network node forwarding the downlink traffic to the client.