4G LTE Signal Interference

[vip_maddog]

I am using ZoneDirector 3000 to manage ZoneFlex 7343. Recently, i am facing a problem about 4G LTE signal interference. The wireless signal still can maintain around -69 to -75 dbm. However, the throughput has been dropped below 1Mb. Do anyone has the similar problem? Do you have any workaround solution for it? It is because we can't manage or control the carrier to deploy their equipment.

[vip_maddog]

and Primož.

[vip_maddog]

------ Interrupt Stats ------
34017706 RX interrupts(rx_i)
1116133 TX interrupts(tx_i)
410225480 beacon alert interrupts(swba)
59 dynamic wmm engaged(dwmm_engaged)
59 dynamic wmm disengaged(dwmm_disengaged)
2 recv overrun interrupts(rxorn)
135642 recv eol interrupts(rxeol)
90367 global txmit timeout interrupts(txto)
448919 carrier sense timeout interrupts(cst)

------------ TX/RX Stats ------------
45491 tx failed 'cuz too many retries(tx_xretries)
836671 long on-chip tx retries(tx_longretry)
146954 tx frames with no ack marked(tx_noack)
0% rts fail rate
41931 tx frames with short preamble(tx_shortpre)
7118498 rx failed 'cuz of bad CRC(rx_crcerr)
56 rx discarded 'cuz frame too large(rx_toobig)

------------ PHY Error Stats ------------
1517757176 PHY errors since clearing all stats (rx_phyerr)
1841066746 phy ofdm group
3971657447 phy cck group
279 phy custom group
0 PHY errors since clearing delta stats (1 sec)
Histogram of PHY errors per second (pcttime in each range)
0 1-500 ..1K ..2K ..5K ..10K ..20K ..50K .100K more
0 0 0 0 0 100 0 0 0 0

------------ Airtime Stats ------------
Airtime utilized (percent) since clearing delta stats (1 sec)
Busy: 4 RX: 46 TX: 1 Total: 51
Histograms of airtime (pcttime in each range) since clearing all stats
0 0-10 ..20 ..30 ..40 ..50 ..60 ..70 ..80 ..90 ..100
busy: 0 100 0 0 0 0 0 0 0 0 0
rx: 0 0 0 1 11 73 16 0 0 0 0
tx: 12 88 0 0 0 0 0 0 0 0 0
tot: 0 0 0 0 3 38 57 1 0 0 0

38947 periodic calibrations(per_cal)
Ack RSSI [combined]: 13
Ack RSSI Ch0: ctl 6, ext -1
Ack RSSI Ch1: ctl 12, ext -1
Ack RSSI Ch2: ctl -1, ext -1
Rx RSSI Ch0: ctl 21, ext -1
Rx RSSI Ch1: ctl 27, ext -1
Rx RSSI Ch2: ctl -1, ext -1
NF Ch0 -102[-108], ext -102[-104]
NF Ch1 -102[-104], ext -102[-104]
NF Ch2 -88[0], ext -88[0]

[vip_maddog]

result from site B

[vip_maddog]

I'm sorry that it should be information from Site A that the AP with 4G antenn beside.

The information of Site B is listed below:

[vip_maddog]

------ Interrupt Stats ------
313701266 RX interrupts(rx_i)
223733126 TX interrupts(tx_i)
892403106 beacon alert interrupts(swba)
30712 dynamic wmm engaged(dwmm_engaged)
30712 dynamic wmm disengaged(dwmm_disengaged)
305044 recv eol interrupts(rxeol)
1555 global txmit timeout interrupts(txto)
396720 carrier sense timeout interrupts(cst)

------------ TX/RX Stats ------------
2029502 tx failed 'cuz too many retries(tx_xretries)
140935302 long on-chip tx retries(tx_longretry)
4865279 tx frames with no ack marked(tx_noack)
116891 tx frames with rts enabled(tx_rts)
0% rts fail rate
112258941 tx frames with short preamble(tx_shortpre)
31954225 rx failed 'cuz of bad CRC(rx_crcerr)
12 rx failed 'cuz of rx unknown (rx_unknown)
1 rx failed 'cuz MIC failure(rx_badmic)
1 rx failed 'cuz HW provided wrong keyIx(rx_badkeyix)
1 rx failed 'cuz frame too short(rx_tooshort)
156 rx discarded 'cuz frame too large(rx_toobig)

------------ PHY Error Stats ------------
2340635190 PHY errors since clearing all stats (rx_phyerr)
1491713038 phy ofdm group
848295472 phy cck group
626680 phy custom group
0 PHY errors since clearing delta stats (1 sec)
Histogram of PHY errors per second (pcttime in each range)
0 1-500 ..1K ..2K ..5K ..10K ..20K ..50K .100K more
0 45 16 10 5 4 10 9 0 0

------------ Airtime Stats ------------
Airtime utilized (percent) since clearing delta stats (1 sec)
Busy: 13 RX: 19 TX: 1 Total: 33
Histograms of airtime (pcttime in each range) since clearing all stats
0 0-10 ..20 ..30 ..40 ..50 ..60 ..70 ..80 ..90 ..100
busy: 46 40 10 3 0 0 0 0 0 0 0
rx: 0 5 53 27 8 4 2 1 0 0 0
tx: 4 91 2 1 0 0 0 0 0 0 0
tot: 0 2 37 27 14 12 4 2 1 0 0

60050 periodic calibrations(per_cal)
Ack RSSI [combined]: 9
Ack RSSI Ch0: ctl 3, ext -1
Ack RSSI Ch1: ctl 8, ext -1
Ack RSSI Ch2: ctl -1, ext -1
Rx RSSI Ch0: ctl 24, ext -1
Rx RSSI Ch1: ctl 34, ext -1
Rx RSSI Ch2: ctl -1, ext -1
NF Ch0 -102[-103], ext -102[-104]
NF Ch1 -102[-106], ext -102[-104]
NF Ch2 -88[0], ext -88[0]