# US 10,873,873 B2 · Communication load estimation system, information processing device, method, and program

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- Number: US 10,873,873 B2
- Document ID: US10873873B2
- Status: Granted
- Kind: B2
- Application number: 16/065,188
- Filed: 2016-12-19
- Published: 2019-01-24
- Granted: 2020-12-22
- Earliest claimed: 2016-01-05
- Assignees: NEC Corporation
- Applicants: NEC Corporation
- Inventors: Eiji Takahashi; Daisuke Ohta; Takeo Onishi; Takahiro Shiroshima
- Web page: https://patentgrep.com/patent/US10873873B2

## CPC

- H04W 28/0284: {detecting congestion or overload during communication (monitoring arrangements H04L43/00)}
- H04B 17/309: Measuring or estimating channel quality parameters
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 28/02: Traffic management, e.g. flow control or congestion control
- H04W 28/0236: {radio quality, e.g. interference, losses or delay}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A communication load estimation system is provided with a load estimation means 501 for estimating a communication load of a wireless base station to be an object of estimation, using at least: a network parameter which is a parameter concerning the number of antennas used for signal transmission of the wireless base station; a first quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total reception power; and a second quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.

## Claims

### Claim 1

A communication load estimation system comprising:
a memory storing instructions; and
one or more processors configured to execute the instructions to:
calculate a provisional communication load of a wireless base station by using a first quality measurement value and a second quality measurement value;
derive a number of antennas used by the wireless base station for signal transmission, based on the provisional communication load;
select a first formula, from among two or more formulae used for signal transmission of the wireless base station, based on the derived number of antennas; and
calculate, based on the selected first formula, a communication load of the wireless base station to be an object of estimation, using at least:
the derived number of antennas;
the first quality measurement value, which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total received power; and
the second quality measurement value, which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.

### Claim 2 (depends on 1)

The communication load estimation system according to claim 1, wherein the one or more processors is further configured to execute the instructions to calculate the communication load of the wireless base station, based on a result of subtracting a component containing an interference noise component included in the signal to interference noise ratio from a component containing the total received power.

### Claim 3 (depends on 1)

The communication load estimation system according to claim 1, wherein the one or more processors is further configured to calculate the communication load of the wireless base station by using a formula including a term with a ratio between the total received power and the received power of the reference signal per one resource block in a symbol to be measured for the total received power or the signal to interference noise ratio.

### Claim 4

A computer-implemented communication load estimation method executed by an information processing device, which is connectable to a wireless terminal or a wireless communication unit, comprising:
calculating a provisional communication load of a wireless base station by using a first quality measurement value and a second quality measurement value;
deriving a number of antennas used by the wireless base station for signal transmission, based on the provisional communication load;
selecting a first formula, from among two or more formulae used for signal transmission of the wireless base station, based on a number of antennas indicated by a network parameter; and
calculating, based on the selected first formula, a communication load of the wireless base station to be an object of estimation, using at least:
the derived number of antennas;
the first quality measurement value, which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total received power; and
the second quality measurement value, which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.

### Claim 5

A non-transitory computer readable recording medium in which a communication load estimation program is recorded, the communication load estimation program for causing a computer to perform:
calculating a provisional communication load of a wireless base station by using a first quality measurement value and a second quality measurement value;
deriving a number of antennas used by the wireless base station for signal transmission, based on the provisional communication load;
selecting a first formula, from among two or more formulae used for signal transmission of the wireless base station, based on a number of antennas indicated by a network parameter; and
calculating, based on the selected first formula, a communication load of the wireless base station to be an object of estimation, using at least:
the derived number of antennas;
the first quality measurement value, which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total received power; and
the second quality measurement value, which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.
