Scheduling algorithm and Calculation of metric

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UE #1 UE #n Transceiv er Schedule r Channel state decoding Queue of LC #1 Queue of LC #m Logical Channels for UE #1 Queue of LC #1 Queue of LC #m Logical Channels for UE #n SM (Scheduling Metric) = pdbPriority * pdbWeight + qciPriority * qciWeight + tokenPriority * tokenWeight + qLoadPriority * qLoadWeight + mcsPriority * mcsWeight Scheduler - calculates SM of each logical channel - allocates PDCCH for each UE - Weights are configured at cell setup. - pdbPriority is extracted from packet delay budget of each logical channel QCI. - qciPriority is extracted from QCI priority of each logical channel. - tokenPriority is extracted from remaining token of each logical channel. - qLoadPriority is extracted from not transmitted queue data bytes of each logical channel. - mcsPriority is extracted from MCS for each UE. pdbPriority and qciPriority is used to handle QoS tokenPriority and qLoadPriority is used for fairness token s token s token s token s

Transcript of Scheduling algorithm and Calculation of metric

Page 1: Scheduling algorithm and Calculation of metric

UE #1

UE #n

Trans-ceiver

Scheduler

Channel state decoding

Queue of LC #1

Queue of LC #m

Logical Chan-nels for UE #1

Queue of LC #1

Queue of LC #m

Logical Chan-nels for UE #n

SM (Scheduling Metric) = pdbPriority * pdbWeight + qciPriority * qciWeight + tokenPriority * tokenWeight + qLoadPriority * qLoad-Weight + mcsPriority * mcsWeight

Scheduler - calculates SM of each logical channel - allocates PDCCH for each UE

- Weights are configured at cell setup.- pdbPriority is extracted from packet delay budget of each logical channel QCI.- qciPriority is extracted from QCI priority of each logical channel.- tokenPriority is extracted from remaining token of each logical channel.- qLoadPriority is extracted from not transmitted queue data bytes of each logical channel.- mcsPriority is extracted from MCS for each UE.

pdbPriority and qciPriority is used to handle QoStokenPriority and qLoadPriority is used for fairnessmcsPriority is used to maximize capacity

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