LBI-39128

OPERATION

Alarm Reporting

The PMU reports alarms to the Site Controller computer in the status message replies to the on-channel messages. The status message may contain no alarms, or one or more alarms.

Transmitter Alarms

When the Site Controller computer receives a transmitter alarm from the PMU, the Site Controller computer takes the following action:

∙Stops assigning that transmitter to system calls.

∙Continues to assign that transmitter to test calls.

∙Sends a clear alarm message to the PMU telling it to clear all alarms so that only new alarms will be reported in the next status message.

∙Sends the alarm information (transmitter channel number) to the System Manager.

However, if three or more transmitter alarms are reported in the same status message, the Site Controller computer will ignore all the alarms in that status message. It is felt that this condition is more likely to be a mistake than the truth (it would require three transmitters to be keyed almost at the same instant and all three transmitters to indicate a power problem). If any of these alarms really are valid, they will be reported the next time the associated transmitters are assigned.

As soon as the PMU no longer reports a transmitter alarm during a test call to a previously alarmed transmitter, the Site Controller computer takes the following action:

∙Resumes assigning that transmitter to system calls.

∙Continues to assign that transmitter to test calls.

∙Sends the alarm cleared information (transmitter channel number) to the System Manager.

There may be a noticeable delay between when the problem is corrected and the System Manager sees the transmitter alarm indication cleared, because the alarm condition is not considered cleared until a successful test call has been placed to that transmitter. This delay may be reduced by doing one or both of the following:

∙Set the Background Testcall Interval to the minimum of one minute. This may be specified in the Site Controller computer’s Personality PROMs

(must be factory programmed), or re-configured by the System Manager.

∙Switch the transmitter off (12V power supply), then back on, after fixing the transmitter alarm problem. This will cause the next test call to be placed to that transmitter.

Antenna Alarms

When a status message from the PMU contains an antenna alarm, the Site Controller computer takes the following action:

∙Sends a clear alarm message to the PMU telling it to clear all alarms so that only new alarms will be reported in the next status message.

∙Counts the reported alarms for this antenna and the number of polling cycles.

∙Sends the alarm information (antenna number) to the System Manager if two or more alarms are received for this antenna during any three consecutive polling cycles.

As soon as that antenna stops causing an alarm, the Site Controller computer takes the following action:

∙Sends the alarm cleared information (antenna number) to the System Manager.

Excessive Alarms

If the quantity of transmitter channels that are not in use for system calls (due to PMU transmitter alarms) exceeds 50% of the total number of equipped transmitter channels, the Site Controller computer takes the following action:

∙Suspends the practice of using transmitter alarms from the PMU to take transmitter channels out of use for system calls (and reinstates those taken out of use up to that point).

∙Continues to assign all transmitters to test calls.

∙Sends a clear alarm message to the PMU telling it to clear all alarms so that only new alarms will be reported in the next status message.

∙Sends the alarm information (transmitter channel number) to the System Manager.

The Site Controller computer will continue to use the transmitter channels for which the PMU is still reporting alarms until all transmitter alarm conditions are corrected.

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Ericsson LBI-39128 manual Alarm Reporting, Transmitter Alarms, Antenna Alarms, Excessive Alarms
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LBI-39128 specifications

Ericsson LBI-39128 is a comprehensive communication solution designed to meet the ever-evolving demands of modern telecommunications. It is renowned for its ability to enhance network performance while providing a robust framework for various communication technologies. This product primarily targets service providers, enabling them to maximize their operational efficiency and improve service delivery.

One of the key features of the LBI-39128 is its versatility in supporting multiple generation technologies, including 2G, 3G, LTE, and even 5G. This ensures that service providers can seamlessly integrate their existing infrastructure and gradually evolve towards more advanced network capabilities without the need for a complete overhaul. The product caters to a wide array of deployment scenarios, from urban environments with high user density to rural areas requiring expansive coverage.

In terms of network performance, the LBI-39128 excels with its advanced radio technologies. It employs Massive MIMO (Multiple Input Multiple Output) and beamforming techniques, which significantly enhance spectral efficiency and improve user experience. With multiple antennas transmitting and receiving signals simultaneously, users benefit from increased throughput and reduced latency, essential for applications such as video streaming and real-time communications.

Another critical characteristic of the Ericsson LBI-39128 is its focus on energy efficiency. The product integrates intelligent power management systems that optimize energy consumption, thereby reducing operational costs for service providers. This aligns with the growing emphasis on sustainable practices within the telecommunications industry.

Moreover, the LBI-39128 features advanced management and automation capabilities. Its network function virtualization (NFV) support enables operators to deploy virtualized network functions efficiently, allowing for dynamic scaling and resource allocation based on real-time demand. This agility is crucial for handling varying loads and enhancing the overall resilience of the network.

Security is also a primary consideration in the design of the LBI-39128. It incorporates robust encryption methods and secure access protocols to protect sensitive data and ensure the integrity of communication channels. This is particularly important in an age where cyber threats are becoming increasingly prevalent.

In summary, the Ericsson LBI-39128 is a state-of-the-art telecommunications solution that stands out due to its support for multiple technologies, advanced radio capabilities, energy efficiency, automated management, and robust security features. Its design reflects the needs of contemporary service providers, allowing them to build and sustain high-performance networks that meet the demands of future communications.
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