UE load-sensitive front-haul controller
AssigneeHuawei Technologies Co., Ltd.
InventorsHassan Halabian, Peter Ashwood-Smith
Life of this patent
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Abstract
A front-haul controller for a network coupling a BBU and an RRH that exchanges RF analog signals with a supported UE. The network comprises a plurality of nodes coupled by variable bit-rate network communications links. The BBU exchanges packets of frequency-domain samples with the RRH along the network. The front-haul controller monitors information about wireless spectrum occupancy at the RRH and at least one spectrum occupancy threshold and varies a bit-rate of the network link in accordance therewith. The front-haul controller can proactively adjust the bit-rate and/or the threshold during periods associated with at least one event that may impact the spectrum occupancy. The network link can be a FlexE, SONET, DWDM, LAG and/or ECMP link.
Claims23
A front-haul controller for:
- receiving, from at least one front-haul processor, information about wireless spectrum occupancy of at least one wireless transceiver coupled to the at least one front-haul processor by a network of nodes;
- comparing the information with at least one spectrum occupancy threshold;
- and
- transmitting an instruction, in accordance with the comparison of the information and the threshold, to the at least one front-haul processor to vary a bit-rate of at least one variable bit-rate link in the network, by which at least one packet is exchanged between the at least one front-haul processor and the at least one wireless transceiver.
A method of exchanging packets between at least one front-haul processor and at least one wireless transceiver across a network of nodes, comprising actions at a front-haul controller of:
- receiving information about wireless spectrum occupancy of the at least one transceiver;
- comparing the information with at least one spectrum occupancy threshold;
- and
- transmitting an instruction, in accordance with the comparison of the information and the threshold, to the at least one front-haul processor to vary a bit-rate of at least one variable bit-rate link in the network, by which at least one packet is exchanged between the at least one front-haul processor and the at least one transceiver.
A first node having a processor and a memory containing a front-haul controller software module for execution by the processor that causes the node to exchange at least one packet between at least one front-haul processor and at least one wireless transceiver across a network of nodes, by:
- receiving, from the at least one front-haul processor, information about wireless spectrum occupancy of the at least one transceiver;
- comparing the information with at least one spectrum occupancy threshold;
- and
- transmitting an instruction, in accordance with the comparison of the information and the threshold, to the at least one front-haul processor to vary a bit-rate of at least one variable bit-rate link in the network, by which at least one packet is exchanged between the at least one front-haul processor and the at least one wireless transceiver.
Dependencies are inferred from the claim text.