# US 2018/0026892 A1 · Apparatus and method for monitoring traffic

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- Number: US 2018/0026892 A1
- Document ID: US20180026892A1
- Status: Published application
- Kind: A1
- Application number: 15/637,444
- Filed: 2017-06-29
- Published: 2018-01-25
- Earliest claimed: 2016-07-19
- Assignees: Fujitsu Limited
- Applicants: Fujitsu Limited
- Inventors: Nami Nagata
- Web page: https://patentgrep.com/patent/US20180026892A1

## CPC

- H04W 8/04: Registration at HLR or HSS [Home Subscriber Server]
- H04L 47/125: by balancing the load, e.g. traffic engineering
- H04L 47/32: by discarding or delaying data units, e.g. packets or frames
- H04W 28/0252: {per individual bearer or channel (dynamic wireless traffic scheduling H04W72/12)}
- H04W 16/04: Traffic adaptive resource partitioning
- H04W 88/10: adapted for operation in multiple networks, e.g. multi-mode access points
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A traffic monitoring apparatus includes a generation unit that generates information with respect to a channel capacity between a wireless communication apparatus and a wireless terminal, based on throughput in communication between the wireless communication apparatus and the wireless terminal and a discard number of packets that are transmission objects from the wireless communication apparatus to the wireless terminal, and an output unit that outputs the information with respect to the channel capacity.

## Claims

### Claim 1

A non-transitory computer-readable recording medium having stored therein a program for causing a computer to execute a process comprising:
outputting information with respect to a channel capacity between a wireless communication apparatus and a wireless terminal, based on throughput in communication between the wireless communication apparatus and the wireless terminal and a discard number of packets that are transmission objects from the wireless communication apparatus to the wireless terminal.

### Claim 2 (depends on 1)

The recording medium according to claim 1, wherein the outputting the information with respect to the channel capacity includes:
evaluating an index value of the channel capacity in a unit time, based on the throughput in the unit time and the discard number of the packets in the unit time; and
outputting the index value.

### Claim 3 (depends on 2)

The recording medium according to claim 2, wherein:
the outputting the information with respect to the channel capacity includes outputting a maximal throughput as the index value,
the maximal throughput is measured when the discard number of the packets in the unit time is larger than zero and smaller than an allowable discard number; and
the maximal throughput is a total value of a reception amount from the wireless terminal in the unit time and a transmission amount to the wireless terminal in the unit time.

### Claim 4 (depends on 1)

The recording medium according to claim 1, wherein the outputting the information with respect to the channel capacity includes outputting information indicating that a traffic amount between the wireless communication apparatus and the wireless terminal exceeds the channel capacity when the discard number of the packets in a unit time exceeds an allowable discard number.

### Claim 5 (depends on 1)

The recording medium according to claim 1, wherein the outputting the information with respect to the channel capacity includes outputting information indicating that a traffic amount between the wireless communication apparatus and the wireless terminal does not exceed the channel capacity when the discard number of the packets in a unit time is zero.

### Claim 6 (depends on 1)

The recording medium according to claim 1, wherein the outputting the information with respect to the channel capacity includes outputting information indicating that a usage rate of a wireless resource with respect to the communication between the wireless communication apparatus and the wireless terminal is maximal when the discard number of the packets in a unit time is larger than zero and smaller than an allowable discard number.

### Claim 7 (depends on 3)

The recording medium according to claim 3, wherein the process further comprises:
calculating a transmittable amount in a unit time by subtracting a received data amount in the unit time from the maximal throughput;
calculating a transmittable number of packets in the unit time by dividing the transmittable amount in the unit time by an average transmission packet length;
calculating a transmission interval of the packets by dividing the transmittable number of packets in the unit time by the unit time; and
transmitting the packets that are the transmission objects, to the wireless terminal, at the transmission interval.

### Claim 8 (depends on 7)

The recording medium according to claim 7, wherein the process further comprises performing transmission at the transmission interval that is evaluated for a packet having at least one packet type of a plurality of packet types, the plurality of packets being included in the packets that are the transmission objects to the wireless terminal.

### Claim 9 (depends on 3)

The recording medium according to claim 3, wherein the process further comprises transmitting an instruction to increase transmission power, to the wireless terminal, when an attenuation amount of received signal strength indicator from the wireless terminal at the time of decrease in the maximal throughput is beyond a predetermined range.

### Claim 10

A traffic monitoring apparatus, comprising:
a generation unit that generates information with respect to a channel capacity between a wireless communication apparatus and a wireless terminal, based on throughput in communication between the wireless communication apparatus and the wireless terminal and a discard number of packets that are transmission objects from the wireless communication apparatus to the wireless terminal; and
an output unit that outputs the information with respect to the channel capacity.

### Claim 11

A traffic monitoring method, comprising:
generating information with respect to a channel capacity between a wireless communication apparatus and a wireless terminal, based on throughput in communication between the wireless communication apparatus and the wireless terminal and a discard number of packets that are transmission objects from the wireless communication apparatus to the wireless terminal; and
outputting the information with respect to the channel capacity.
