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Paging Success Rate

Paging success rate is the rate of successful page responses to first and repeated page attempts in a location area relative to the total number of initial and repeated page attempts. It should be at least 92%. Major factors that can decrease it include improper paging/location update settings, network outages, low RACH success rates, interference issues, and congestion on the A-bis interface between the BSC and BTS. The paging success rate can be improved by optimizing paging/location update timers, location area codes, paging capacity parameters, and addressing coverage issues.

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Nazmul Hoq
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2K views1 page

Paging Success Rate

Paging success rate is the rate of successful page responses to first and repeated page attempts in a location area relative to the total number of initial and repeated page attempts. It should be at least 92%. Major factors that can decrease it include improper paging/location update settings, network outages, low RACH success rates, interference issues, and congestion on the A-bis interface between the BSC and BTS. The paging success rate can be improved by optimizing paging/location update timers, location area codes, paging capacity parameters, and addressing coverage issues.

Uploaded by

Nazmul Hoq
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOC, PDF, TXT or read online on Scribd
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Paging Success Rate - It is rate of successful page responses to First and Repeated Page Attempts to a location area w.r.t.

Number of Initial and Repeated Page Attempts to a location area. This parameter is calculated for 24 Hours. Its standard value >= 92%. LSR = (Number of Page responses to first page to an LA + Number of Page responses to repeated page to an LA) / Number of Page Attempts to an LA (Location Area). OR LSR = (first paging response+ repeated paging response)*100/first paging request). Major contributor for decreasing PSR 1. Improper Paging / LU (Location Update) related parameter setting. 2. O&M issue i.e Outages. 3. Lower RACH success rate. 4. Air Interface Issues like Interference, SDCCH Congestion, etc. 5. Footprints. 6. Paging overload on BSC i.e. paging capacity of BSC compared with the actual paging. 7. Congestion on A-bis interface i.e. Paging command from BSC is delivered to BTS via A-bis.

Improvement Plan 1. Paging / LU timers setting, like Paging Timers in MSC must longer than Paging Timer in BSC (prolonging 1st and repeated page) and also paging strategy (local vs global), or repeated page on/off. 2. LAC optimization. 3. Paging / LU related parameter setting like increasing paging capacity through uncombined BCCH, changing Access grant and MFRMS (multiframe) parameters. 4. Address Coverage issues. 5. Check Discard/Paging queue on cell level.

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