Scheduling method and system for fourth generation radio mobile networks
AssigneesTelecom Italia S.p.A., Politecnico Di Torino
InventorsMarco CARETTI, Carla Fabiana CHIASSERINI, Gian Michele DELL'AERA, Zana LIMANI, Bruno MELIS
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Abstract
A method is proposed for scheduling, in a radio mobile network, serving cell/radio resource allocation pairs for transmission of data flows using Carrier Aggregation. Each serving cell/radio resource allocation pair includes a serving cell and a radio resource thereof allocated for transmission of data flows using Carrier Aggregation. At each scheduling period the method determines active data flows whose transmission is not yet completed at the current scheduling period, and performs a series of steps for each active data flow.
Claims15
A method for scheduling, in a radio mobile network, serving cell/radio resource allocation pairs for transmission of data flows using Carrier Aggregation, wherein each serving cell/radio resource allocation pair comprises a serving cell and a radio resource thereof allocated for transmission of data flows using Carrier Aggregation, at each scheduling period, the method comprising:
- determining, among said data flows, active data flows whose transmission is not yet completed at the current scheduling period, and
- iterating, for each active data flow:
- determining candidate serving cells adapted to provide transmission of the active data flows;
- for each radio resource of each candidate serving cell, determining a signal to noise-plus-interference ratio estimate for that active data flow;
- associating, to each candidate serving cell/radio resource pair, a weighting parameter according to said signal to noise-plus-interference ratio estimate and to an indication of the interference caused to other active data flows;
- determining, among said candidate serving cell/radio resource pairs, a potential allocation pair based on the weighting parameter associated with the candidate serving cell/radio resource pair, and calculating a potential amount of data that can be transmitted by the allocation pairs so far determined and the potential allocation pair, and
- identifying said potential allocation pair as allocation pair if said potential amount of data is higher than an overall amount of data that can be transmitted by the allocation pairs so far determined for all the active data flows.
A controller for scheduling, in a radio mobile network, serving cell/radio resource allocation pairs for transmission of data flows using Carrier Aggregation, wherein each serving cell/radio resource allocation pair comprises a serving cell and a radio resource thereof allocated for transmission of data flows using Carrier Aggregation, wherein at each scheduling period the controller is configured for:
- determining, among said data flows, active data flows whose transmission is not yet completed at the current scheduling period, and
- iterating, for each active data flow:
- determining candidate serving cells adapted to provide transmission of the active data flows;
- for each radio resource of each candidate serving cell, determining a signal to noise-plus-interference ratio estimate for that active data flow;
- associating, to each candidate serving cell/radio resource pair, a weighting parameter according to said signal to noise-plus-interference ratio estimate and to an indication of the interference caused to other active data flows;
- determining, among said candidate serving cell/radio resource pairs, a potential allocation pair based on the weighting parameter associated with the candidate serving cell/radio resource pair, and calculating a potential amount of data that can be transmitted by the allocation pairs so far determined and the potential allocation pair, and
- identifying said potential allocation pair as allocation pair if said potential amount of data is higher than an overall amount of data that can be transmitted by the allocation pairs so far determined for all the active data flows.
Dependencies are inferred from the claim text.