# US 10,798,626 B2 · Method of managing a cellular network and system thereof

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- Number: US 10,798,626 B2
- Document ID: US10798626B2
- Status: Granted
- Kind: B2
- Application number: 16/281,426
- Filed: 2019-02-21
- Published: 2019-09-19
- Granted: 2020-10-06
- Earliest claimed: 2018-02-21
- Assignees: Cellwize Wireless Technologies Ltd.
- Applicants: Cellwize Wireless Technologies Ltd.
- Inventors: David Ronen; Gal Izhaki; Dan Weil
- Web page: https://patentgrep.com/patent/US10798626B2

## CPC

- H04W 24/02: Arrangements for optimising operational condition
- H04W 36/06: Reselecting a communication resource in the serving access point
- H01Q 3/08: for varying two co-ordinates of the orientation
- H04B 17/327: Received signal code power [RSCP]
- H04B 17/382: for resource allocation, admission control or handover
- H04W 28/021: {in wireless networks with changing topologies, e.g. ad-hoc networks (self-organizing networks H04W84/18)}
- H04W 28/0236: {radio quality, e.g. interference, losses or delay}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 36/247: {by using coverage extension}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H04B: TRANSMISSION

## Abstract

There are provided a method and system of controlling traffic in a cellular network comprising at least one site characterized by a plurality of cells sharing a common antenna and operating in different frequencies. The method comprises processing performance-related data and network topology-related to obtain, for each cell of the plurality of cells, a performance score, thus giving rise to a set of frequency-dependent scores associated with the shared antenna; and enabling provisioning of the shared antenna in accordance with the set of frequency-dependent scores associated with the shared antenna. When no leading frequency is configured for the shared antenna, the provisioning is enabled merely when each score in the set of frequency-dependent scores meets respective adjustment criteria; and when a frequency among the different frequencies is configured as a leading frequency, the provisioning is enabled merely when a score corresponding to the leading frequency meets an adjustment criterion for the leading frequency.

## Claims

### Claim 1

A method of managing a cellular network comprising at least one site characterized by a plurality of cells sharing a common antenna and operating in different frequencies, the method comprising:
continuously obtaining by a computerized system performance-related data with regard to each cell of the plurality of cells and network topology-related data indicative, at least, of location and azimuth of the shared antenna;
processing, by the computerized system, the obtained performance-related data and network topology-related data to obtain, for each cell of the plurality of cells, a performance score, thus giving rise to a set of frequency-dependent scores associated with the shared antenna; and
enabling, by the computerized system, provisioning of the shared antenna in accordance with the set of frequency-dependent scores associated with the shared antenna,
wherein: when no leading frequency is configured for the shared antenna, the provisioning is enabled when each score in the set of frequency-dependent scores meets a respective adjustment criterion; and
when a frequency among the different frequencies is configured as a leading frequency, the provisioning is enabled when a score corresponding to the leading frequency meets the respective adjustment criterion for the leading frequency.

### Claim 2 (depends on 1)

The method of claim 1, wherein the performance score of a given cell is calculated as a value of a weighted combination of one or more Key Performance Indicators (KPIs) depending on parameters of the shared antenna and characterizing the given cell, and wherein the adjustment criterion is met when the calculated value is less than a threshold.

### Claim 3 (depends on 1)

The method of claim 1, wherein the performance score of a given cell is calculated as a set of values of Key Performance Indicators (KPIs) depending on parameters of the shared antenna and characterizing the given cell, and wherein the adjustment criterion is met when at least one of the values is less than a threshold.

### Claim 4 (depends on 1)

The method of claim 1, wherein the performance score of a given cell is calculated as a value corresponding to at least one sub-score selected from a group comprising a sub-score resulting from target distance analyses for the given cell, a sub-score resulting from measurements of Physical Uplink Shared Channel (PUSCH) Received Signal Strength Indicator (RSSI) levels related to the given cell and a sub-score resulting from amount of total handover attempts in the given cell.

### Claim 5 (depends on 1)

The method of claim 1, wherein the performance score of a given cell is calculated as a value corresponding to a combination of at least two independent sub-scores selected from a group comprising a sub-score resulting from target distance analyses for the given cell, a sub-score resulting from measurements of Physical Uplink Shared Channel (PUSCH) Received Signal Strength Indicator (RSSI) levels related to the given cell, and a sub-score resulting from amount of total handover attempts in the given cell.

### Claim 6 (depends on 1)

The method of claim 1, wherein the performance score of a given cell is indicative of a discrepancy between a coverage area corresponding to the obtained performance-related data and a coverage area corresponding to the obtained network topology-related data.

### Claim 7 (depends on 1)

The method of claim 1, wherein in absence of the leading frequency, the provisioning is enabled in accordance with a minimal adjustment of adjustments that are required for each one of the frequencies.

### Claim 8 (depends on 1)

The method of claim 1, wherein the plurality of cells is served by a plurality of Access Points (APs) sharing the common antenna and operating in the different frequencies.

### Claim 9 (depends on 1)

The method of claim 1, wherein provisioning of the shared antenna comprises at least one of adjusting remote azimuth steering/horizontal (RAS), adjusting remote electrical tilt/vertical adjustment (RET) and adjusting Remote Azimuth Beam-width (RAB).

### Claim 10

A computerized system usable to manage a cellular network comprising at least one site characterized by a plurality of cells sharing a common antenna and operating in different frequencies, the system comprising
a processing and memory circuitry (PMC) operatively connected to an input interface,
wherein: the input interface is configured to continuously receive performance-related data with regard to each cell of the plurality of cells and network topology-related data indicative, at least, of location and azimuth of the shared antenna; and
the PMC is configured to:
process the obtained performance-related data and network topology-related data to obtain, for each cell of the plurality of cells, a performance score, thus giving rise to a set of frequency-dependent scores associated with the shared antenna; and
enable provisioning of the shared antenna in accordance with the set of frequency-dependent scores associated with the shared antenna,
wherein:
when no leading frequency is configured for the shared antenna, the provisioning is enabled when each score in the set of frequency-dependent scores meets a respective adjustment criterion; and
when a frequency among the different frequencies is configured as a leading frequency, the provisioning is enabled when a score corresponding to the leading frequency meets the respective adjustment criterion for the leading frequency.

### Claim 11 (depends on 10)

The system of claim 10, wherein the PMC is configured to calculate the performance score of a given cell as a value of a weighted combination of one or more KPIs depending on parameters of the shared antenna and characterizing the given cell, and wherein the adjustment criterion is met when the calculated value is less than a threshold.

### Claim 12 (depends on 10)

The system of claim 10, wherein the PMC is configured to calculate the performance score of a given cell as a set of values of Key Performance Indicators (KPIs) depending on parameters of the shared antenna and characterizing the given cell, and wherein the adjustment criterion is met when at least one of the values is less than a threshold.

### Claim 13 (depends on 10)

The system of claim 10, wherein the PMC is configured to calculate the performance score of a given cell as a value corresponding to at least one sub-score selected from the group comprising a sub-score resulting from target distance analyses for the given cell, a sub-score resulting from measurements of Physical Uplink Shared Channel (PUSCH) Received Signal Strength Indicator (RSSI) levels related to the given cell, and a sub-score resulting from amount of total handover attempts in the given cell.

### Claim 14 (depends on 10)

The system of claim 10, wherein the PMC is configured to calculate the performance score of a given cell as a value corresponding to a combination of at least two independent sub-scores selected from the group comprising a sub-score resulting from target distance analyses for the given cell, a sub-score resulting from measurements of Physical Uplink Shared Channel (PUSCH) Received Signal Strength Indicator (RSSI) levels related to the given cell, and a sub-score resulting from amount of total handover attempts in the given cell.

### Claim 15 (depends on 10)

The system of claim 10, wherein in absence of the leading frequency, the provisioning is enabled in accordance with a minimal adjustment of adjustments that are required for each one of the frequencies.

### Claim 16 (depends on 10)

The system of claim 10, wherein the plurality of cells is served by a plurality of Access Points (APs) sharing the common antenna and operating in the different frequencies.

### Claim 17 (depends on 10)

The system of claim 10, wherein provisioning of the shared antenna comprises at least one of adjusting remote azimuth steering/horizontal (RAS), adjusting remote electrical tilt/vertical adjustment (RET) and adjusting Remote Azimuth Beam-width (RAB).

### Claim 18

A non-transitory computer readable medium comprising instructions that, when executed by a computer, cause the computer to perform controlling traffic in a cellular network comprising at least one size characterized by a plurality of cells sharing a common antenna and operating in different frequencies, the controlling traffic comprising:
continuously obtaining performance-related data with regard to each cell of the plurality of cells and network topology-related data indicative, at least, of location and azimuth of the shared antenna;
processing the obtained performance-related data and network topology-related data to obtain, for each given cell of the plurality of cells, a performance score, thus giving rise to a set of frequency-dependent scores associated with the shared antenna; and
enabling provisioning of the shared antenna in accordance with the set of frequency-dependent scores associated with the shared antenna,
wherein:
when no leading frequency is configured for the shared antenna, the provisioning is enabled when each score in the set of frequency-dependent scores meets a respective adjustment criterion; and
when a frequency among the different frequencies is configured as a leading frequency, the provisioning is enabled when a score corresponding to the leading frequency meets the respective adjustment criterion for the leading frequency.
