Bellevue Wireless Site Pre-Integration and Return Visit

My role: I worked from the ground alongside the tower climbing crew; I did not perform the tower climbs. I completed the cabinet equipment and ground-side fiber work, reviewed the site readings, identified tower-side connection problems and a failed radio, relayed the findings to the climbers, reran the checks after their corrections, and completed the customer handoff package.

2 visitsInitial installation and diagnosis, followed by replacement validation

2 fibersUnplugged Alpha and Gamma LTE connections corrected

28 screensOriginal RBS checks preserved across both visits

CompleteGamma replacement verified and pre-integration closed

Cabinet installation and pre-integration

The two photos below show the same equipment cabinet earlier and later on April 11. I completed the remaining equipment and fiber connections, then began pre-integration. I used the radio inventory, optical readings, and tower crew confirmations to verify that the ground equipment matched the radios and sectors at the tower.

Bellevue equipment cabinet before the remaining equipment and fiber connections were completed — **Earlier in Visit 1:** cabinet before I completed the remaining equipment and fiber connections.

The same Bellevue equipment cabinet after the remaining equipment and fiber connections were completed — **Later in Visit 1:** the same cabinet after I completed the connections and started pre-integration.

Site and equipment context

Open Bellevue ground equipment cabinets during the first visit — Ground equipment cabinets documented during the first visit.

Ericsson baseband and connected fiber cabling during the Bellevue return visit — Close view of the connected Ericsson baseband and fiber cabling used during final validation.

Bellevue tower and sector equipment documented during the return visit.

Visit 1 - April 11

The first site update records the GPS and Ericsson RBS 6601 installation, three LTE fibers, three AWS fibers, and one SAR fiber. During pre-integration, I found two LTE fibers that were not connected at the tower-side 2212 radios. I coordinated the corrections with the climbing crew and verified the paths afterward. The site could not be completed because the LTE Gamma secondary 2212 radio was bad.

Identified and coordinated correction of the Alpha LTE fiber connection to the 2212 radio.
Identified and coordinated correction of the Gamma LTE fiber connection to the 2212 radio.
Ran alarm testing and documented the triggered and de-triggered alarm states.
Checked AWS and LTE optical light levels, PM counters, RETs, radio inventory, and VSWR readings.
Isolated the LTE Gamma secondary VSWR problem and documented the failed radio for replacement.

First-visit LTE secondary VSWR test showing a Gamma branch error — Visit 1: the Gamma secondary branch returned an unknown VSWR problem instead of a valid reading.

Triggered alarm test in Ericsson RBS Element Manager — Triggered alarm test used to validate site alarm reporting.

AWS RiLink optical-level readings — AWS RiLink and optical-level readings reviewed during the first visit.

Visit 2 - April 12

I returned after the LTE Gamma secondary 2212 radio had been replaced. I reran the pre-integration checks and completed the site.

Verified the replacement radio in the Ericsson equipment inventory.
Repeated LTE and AWS light-level, PM-counter, RET, radio-inventory, and VSWR checks.
Confirmed valid secondary VSWR responses after the replacement.
Completed the pre-integration documentation and site update.

Second-visit LTE radio inventory after replacement — Visit 2 radio inventory used to verify the replaced equipment.

Second-visit LTE secondary VSWR readings — Visit 2: valid LTE secondary VSWR readings captured after the replacement.

Second-visit LTE light-level readings — LTE RiLink and light-level readings included in the follow-up validation.

Original site updates

These two field reports cover the first troubleshooting visit and the return visit. Crew names were removed, but the original technical notes, issues, and results remain.

Download April 11 site update Download April 12 site update