Localized congestion exposure

摘要

A method for localized congestion exposure within a local loop in a cellular network that is performed by a localized congestion exposure receiver node of the local loop. The method includes receiving downlink packets destined for a downstream user device. The downlink packets have headers that indicate a level of congestion experienced by the downlink packets. The headers also indicate a level of expected downstream congestion declared by an upstream node. The method also includes forwarding the downlink packets to the downstream user device through a wireless connection. The method further includes sending packets upstream that have feedback indicative of the level of congestion experienced by the downlink packets and any congestion experienced within the localized congestion exposure receiver node.

主权项

1. A method, in a cellular network, of localized congestion exposure for efficient resource management of flows of downlink traffic destined to a user device, the method comprising:
receiving the flows of the downlink traffic from a server coupled to the cellular network, wherein the server does not support congestion exposure; receiving congestion feedback, from an eNodeB, wherein the congestion feedback is indicative of a congestion caused by the flows of the downlink traffic in a local path within the cellular network between a packet data network gateway and the eNodeB; declaring, in response to the congestion feedback, congestion exposure (CONEX) information for the flows of the downlink traffic; monitoring, at the packet data network gateway within a core network, the CONEX information, wherein the core network and the eNodeB are part of the cellular network; and responsive to said monitoring, acting, at the packet data network gateway, on the flows of the downlink traffic destined to the user device according to an operator's policy, wherein the user device does not support congestion exposure.