SYSTEMS AND METHODS FOR ALLOCATING NETWORK BANDWIDTH ACROSS ACCESS MODULES

摘要

A telecommunication system uses a dynamic bandwidth allocation (DBA) algorithm based on current load conditions for controlling transmissions to a plurality of access modules of an access node in order to achieve a fair allocation of network bandwidth at the access node. As an example, access modules at an access node communicate via a control channel with dynamic bandwidth allocation (DBA) logic that receives load information from each of the access modules. Using such load information, the DBA logic dynamically controls the upstream data rates so that a fair allocation of network bandwidth is achieved across all of the access modules. Specifically, the data rates are controlled such that packet flows for services of the same class achieve the same or similar performance (e.g., average data rate) regardless of which access module is receiving each respective packet flow.

主权项

1. An access node for use in a telecommunication system, comprising:
a first access module having a first transceiver residing on a first line card, the first transceiver configured to receive a first upstream packet flow from a first remote transceiver; a second access module having a second transceiver residing on a second line card, the second transceiver configured to receive a second upstream packet flow from a second remote transceiver, wherein the access node is configured to multiplex the first and second upstream packet flows, thereby forming a data stream, and to transmit the data stream across a network connection to a network; and dynamic bandwidth allocation (DBA) logic configured to receive first load information indicative of upstream traffic load conditions for the first access module and second load information indicative of upstream traffic load conditions for the second access module, the DBA logic further configured to control an upstream data rate of the first remote transceiver based on the first and second load information.