System and Method of Traffic Engineering in a Software Defined Radio Access Network
AssigneeHuawei Technologies Co., Ltd.
InventorsHamidreza Farmanbar, Hang Zhang
Life of this patent
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Abstract
An embodiment method of traffic engineering (TE) in a software defined radio access network (SD-RAN) includes determining, by a radio resource manager (RRM) at a wireless radio node, respective data rates for paths of a plurality of user equipments (UEs) wirelessly coupled to the wireless radio node. The RRM computes respective supported wireless rates for the paths of the plurality of UEs according to the respective data rates. The TE module receives respective allocated data rates for the paths of the plurality of UEs. The method also includes repeating the determining and the computing using the respective allocated data rates.
Claims22
A method of traffic engineering (TE) in a network, comprising:
- determining, by a radio resource manager (RRM) associated with a radio node, respective data rates for paths for a user equipment (UE) wirelessly coupled to the radio node, wherein the paths are between the UE and at least one source and pass through the radio node;
- computing, by the RRM, respective supported wireless rates for the paths according to the respective data rates;
- and
- repeating the determining and the computing.
A method of traffic engineering (TE) in a network, comprising:
- receiving, at a TE module, a supported wireless rate associated with a radio node;
- computing, by the TE module, new allocated data rates for paths of a user equipment (UE) coupled to the radio node according to the supported wireless rate;
- and
- communicating the new allocated data rates to a radio resource manager (RRM) associated with the radio node.
A traffic engineering (TE) system for a network, comprising:
- a path selector configured to select paths for traffic for at least one radio node to which at least one user equipment (UE) is wirelessly coupled, wherein the paths include wireless segments and backhaul segments;
- a radio scheduler interface configured to receive at least one supportable data rate for the at least one radio node;
- and
- a rate allocator configured to compute an allocated data rate for the paths of the at least one UE according to flow demand constraints, link capacities for the fixed-capacity segments, and the at least one supportable data rate.
Dependencies are inferred from the claim text.