US 12,750,736 B2Granted

Control apparatus, communication system, control method, and non-transitory computer-readable medium

AssigneeNEC Corporation

InventorsNobuhiko Itoh, Eiji Takahashi, Tansheng Li

Life of this patent

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Abstract

A control apparatus (10) according to the present disclosure includes a selection unit (11) configured to select a plurality of radio terminals that perform wireless communication through one of a plurality of antennas included in a wireless network at a predetermined timing, a determination unit (12) configured to determine combinations of the plurality of antennas and the selected plurality of radio terminals, and an allocation unit (13) configured to allocate radio resources for performing wireless communication at the predetermined timing, to the plurality of radio terminals, and the selection unit (11) selects a plurality of radio terminals from all radio terminals so as to satisfy delay requirements determined for data to be transmitted or received by all the radio terminals capable of performing wireless communication through one of the plurality of antennas.

Claims9

Dependent claims

A control apparatus comprising:

at least one memory storing instructions, and
at least one processor configured to execute the instructions to;
select a plurality of radio terminals that perform wireless communication through one of a plurality of antennas included in a wireless network at a predetermined timing;
determine combinations of the plurality of antennas and the selected plurality of radio terminals;
allocate radio resources for performing wireless communication at the predetermined timing, to the plurality of radio terminals;
determine whether or not a criterion for satisfying service quality determined for data to be transmitted or received by each radio terminal is met for all radio terminals capable of performing wireless communication through one of the plurality of antennas;
and
select the plurality of radio terminals for which the criterion is not met from all the radio terminals, wherein
in a case where the number of the selected radio terminals is the same number as the number of the antennas included in a predetermined area or smaller than the number of the antennas included in the predetermined area,
the at least one processor configured to execute the instructions to:
calculate a throughput between first antenna among the plurality of antennas included in the predetermined area and each of the selected plurality of antennas;
determine combinations of the first antenna and first radio terminal for which a value of the throughput is maximum;
calculate a throughput between second antenna other than the first antenna among the plurality of antennas included in the predetermined area and each of the selected plurality of antennas;
and
determine combinations of the second antenna and second radio terminal for which a value of the throughput is maximum;
and
in a case where the number of the selected radio terminals is larger than the number of the antennas included in the predetermined area,
the at least one processor configured to execute the instructions to:
calculate a throughput between third radio terminal among the selected plurality of antennas and each of the plurality of antennas included in the predetermined area;
determine combinations of the third radio terminal and antenna for which a value of the throughput is maximum;
calculate a throughput between fourth radio terminal among the selected plurality of radio terminals and each of the plurality of antennas included in the predetermined area;
and
determine combinations of the fourth radio terminal and antenna for which a value of the throughput is maximum.

20 more elements

A control method comprising:

selecting a plurality of radio terminals that perform wireless communication through one of a plurality of antennas included in a wireless network at a predetermined timing;
determining combinations of the plurality of antennas and the selected plurality of radio terminals;
allocating radio resources for performing wireless communication at the predetermined timing, to the plurality of radio terminals;
and
when selecting the radio terminals,
determining whether or not a criterion for satisfying service quality determined for data to be transmitted or received by each radio terminal is met for all radio terminals capable of performing wireless communication through one of the plurality of antennas and selecting the plurality of radio terminals for which the criterion is not met from all the radio terminals,
when determining combinations of the plurality of antennas and the selected plurality of radio terminal,
in a case where the number of the selected radio terminals is the same number as the number of the antennas included in a predetermined area or smaller than the number of the antennas included in the predetermined area,
calculating a throughput between first antenna among the plurality of antennas included in the predetermined area and each of the selected plurality of antennas;
determining combinations of the first antenna and first radio terminal for which a value of the throughput is maximum;
calculating a throughput between second antenna other than the first antenna among the plurality of antennas included in the predetermined area and each of the selected plurality of antennas;
and
determining combinations of the second antenna and second radio terminal for which a value of the throughput is maximum;
and
in a case where the number of the selected radio terminals is larger than the number of the antennas included in the predetermined area,
calculating a throughput between third radio terminal among the selected plurality of antennas and each of the plurality of antennas included in the predetermined area;
determining combinations of the third radio terminal and antenna for which a value of the throughput is maximum;
calculating a throughput between fourth radio terminal among the selected plurality of radio terminals and each of the plurality of antennas included in the predetermined area;
and
determining combinations of the fourth radio terminal and antenna for which a value of the throughput is maximum.

17 more elements

A non-transitory computer readable medium storing a program for causing a computer to execute:

selecting a plurality of radio terminals that perform wireless communication through one of a plurality of antennas included in a wireless network at a predetermined timing;
determining combinations of the plurality of antennas and the selected plurality of radio terminals;
allocating radio resources for performing wireless communication at the predetermined timing, to the plurality of radio terminals;
and
when selecting the radio terminals,
determining whether or not a criterion for satisfying service quality determined for data to be transmitted or received by each radio terminal is met for all radio terminals capable of performing wireless communication through one of the plurality of antennas and selecting the plurality of radio terminals for which the criterion is not met from all the radio terminals,
when determining combinations of the plurality of antennas and the selected plurality of radio terminal,
in a case where the number of the selected radio terminals is the same number as the number of the antennas included in a predetermined area or smaller than the number of the antennas included in the predetermined area,
calculating a throughput between first antenna among the plurality of antennas included in the predetermined area and each of the selected plurality of antennas;
determining combinations of the first antenna and first radio terminal for which a value of the throughput is maximum;
calculating a throughput between second antenna other than the first antenna among the plurality of antennas included in the predetermined area and each of the selected plurality of antennas;
and
determining combinations of the second antenna and second radio terminal for which a value of the throughput is maximum;
and
in a case where the number of the selected radio terminals is larger than the number of the antennas included in the predetermined area,
calculating a throughput between third radio terminal among the selected plurality of antennas and each of the plurality of antennas included in the predetermined area;
determining combinations of the third radio terminal and antenna for which a value of the throughput is maximum;
calculating a throughput between fourth radio terminal among the selected plurality of radio terminals and each of the plurality of antennas included in the predetermined area;
and
determining combinations of the fourth radio terminal and antenna for which a value of the throughput is maximum.

17 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/266,998Filed 21 Dec 2020
Published: US 2024/0056893 A115 Feb 2024
Granted: 29 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 28/18
Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]:…
H04B 7/0691
Hybrid systems, i.e. switching and simultaneous transmission: using subgroups of transmit antennas
H04W 72/121
Wireless traffic scheduling: for groups of terminals or users
H04W
Wireless communication networks