38 lines
1.6 KiB
Plaintext
38 lines
1.6 KiB
Plaintext
# To balance congestion, consider cross effects between TCH/F and TCH/H when occupying a dynamic timeslot in the target:
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# when balancing of TCH/F congestion would take up a dyn TS in the target, reducing TCH/H availability, the handover
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# should not cause worse TCH/H congestion than in the source cell.
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create-bts trx-count 1 timeslots c+s4 TCH/F TCH/F TCH/F TCH/F TCH/F TCH/F PDCH
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create-bts trx-count 1 timeslots c+s4 TCH/F TCH/F TCH/F TCH/F dyn dyn PDCH
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# for this test, avoid changing a TCH/F to a TCH/H by using a non-AMR codec
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codec tch/f FR
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network
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bts 0
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handover2 min-free-slots tch/f 2
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bts 1
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handover2 min-free-slots tch/f 4
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handover2 min-free-slots tch/h 4
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set-ts-use trx 0 0 states * TCH/F TCH/F TCH/F TCH/F TCH/F TCH/F *
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set-ts-use trx 1 0 states * TCH/F TCH/F TCH/F TCH/F pdch pdch *
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meas-rep lchan * * * * rxlev 40 rxqual 0 ta 0 neighbors 30
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expect-no-chan
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# bts 0 is full for TCH/F. Looking at TCH/F, by target_overbooked_after_ho==75% < current_overbooked_before_ho==100%, a
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# congestion balancing to bts 1 would be performed. But the TCH/F on the target cell would occupy a dynamic timeslot.
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# That would reduce the TCH/H free slots by two and cause TCH/H being overbooked by 50%. On the source cell, TCH/H is
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# not congested. No handover is performed because 50% in the target is more congestion for TCH/H than 0% in the source
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# cell.
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congestion-check
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expect-no-chan
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# If there is no constraint on TCH/H in the target cell, the handover does take place.
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network
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bts 1
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handover2 min-free-slots tch/h 2
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congestion-check
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expect-ho from lchan 0 0 1 0 to lchan 1 0 5 0
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