Download 04 Rn31634en40gla0 Ranpar1 Loadcontrol v1.1 Ru40 PDF

Title04 Rn31634en40gla0 Ranpar1 Loadcontrol v1.1 Ru40
Tags Telecommunications Engineering High Speed Packet Access Data Transmission
File Size759.3 KB
Total Pages23
Document Text Contents
Page 2

Load Control:Load Control:
Module ObjectivesModule Objectives

 At the end of the  At the end of the module you will bmodule you will be able to:e able to:

•• Describe thDescribe the e basic principlebasic principles of s of Load ContrLoad Controlol

•• Describe the relationships of Load Control with AC Describe the relationships of Load Control with AC and PSand PS

•• Identify the parameters influencing BTS Identify the parameters influencing BTS load measurementsload measurements

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Radio Interface Load

 The BTS measures the total received power (PrxTotal ) and the total transmitted power
(PtxTotal ) on cell basis

 The BTS reports PrxTotal  & PtxTotal of each cell to the RNC

 LC updates

 Cell load status for each cell based on RADIO RESOURCE INDICATION

 Non-controllable UL (PrxNC) & DL (PtxNC) load in cell

 Semi-controllable UL (Prx_SC) & DL (Ptx_SC) load in the cell (related to PS Streaming)

  AC and PS algorithms work on the current cell load status provided by LC

 Denying call admission ( AC) & throttling back NRT traffic (PS) are the overload actions

  After scheduling PS provides LC with PrxNRT, PtxNRT & LNRT estimates

  After admitting RT RAB, AC provides LC with NC load increase estimate

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