Nec Corporation

Nobuhiko Itoh

Takanori Iwai

Ling Xu

Yasuhiro Mizukoshi

Ippei Akiyoshi

Motoki Morita

Takahiro Nobukiyo

Hisashi Futaki

Toshiyuki Tamura

Sadafuku Hayashi

Yoshinori Watanabe

Naoaki Suzuki

Tomoaki Hokao

Yasuhiro Yamasaki

Kenki Takagi

Kazuki Eguchi

Kouichi Kimura

Tooru Kikuchi

Hiroya Kaneko

Hiroki Aoki

Hideki Bessho

To provide a control device that can prevent an increase in a processing load and that can effectively allocate a radio resource. A control device () according the present disclosure includes: a deciding unit () configured to decide whether or not an interval between generation of a first flow that is generated when performing radio communication between a communication terminal () and a base station () and generation of a second flow that is generated after the generation of the first flow exceeds a permissible delay time of the first flow; and a determination unit () configured to determine deletion of non-transmitted data related to the communication terminal () after lapse of the permissible delay time of the first flow when it is decided that the generation interval exceeds the permissible delay time of the first flow.

Control device, control method, and non-transitory computer readable medium storing program

An object is to provide a management server for performing a technique to satisfy a predetermined latency requirement in an end-to-end flow. A management server () according to the present disclosure includes: a control unit () configured to distribute permissible latency associated with an end-to-end flow to an uplink flow and a downlink flow, where the end-to-end flow is to be transmitted from a communication terminal of a transmission source to a communication terminal of a transmission destination via an application server, based on a data size of the uplink flow, and a data size of the downlink data which is different from the data size of the uplink flow; and monitoring unit () configured to cause an uplink flow that has exceeded the permissible latency distributed to the uplink flow to be discarded in the communication terminal of the transmission source or the application server.

Management server, data processing method, and non-transitory computer-readable medium

A control apparatus () determines a control value to be supplied to a node () in a communication network so as to achieve a setpoint of Quality of Service (QoS) performance required by a traffic flow transferred through the communication network. This control value causes the node () to adjust allocation of network resources to the traffic flow. The control apparatus () corrects the control value to be supplied to the node () on the basis of a control delay between the control apparatus () and the node () and on the basis of a trend in changes in a traffic-related parameter. It is thus, for example, possible to contribute to stabilizing control for guaranteeing QoS performance required by a traffic flow even when there is a non-negligible control delay.

Apparatus and method for communication network

There is provided a communication device capable of determining whether admission of new data traffic is allowed or rejected not by comparing throughputs only, but by considering other parameters when the data traffic is admitted. A communication device () according to the present invention includes a determination unit () that determines whether to admit a flow regarding a new radio terminal (), the flow being to be transmitted between a radio terminal () and a base station () and having a transmission deadline, depending on a transmission state of a plurality of data packets included in the flow, and a communication unit () that transmits, to the base station (), instruction information indicating whether to admit the flow regarding the new radio terminal ().

Communication device, communication system, communication method, and non-transitory computer-readable medium

An object is to provide a communication apparatus which can perform efficient scheduling for finishing data transmission of a plurality of UEs within a permitted delay time. A communication apparatus () according to the present invention includes: a selecting unit () configured to select a wireless terminal () which is an allocation target of radio resources according to a time to a transmission deadline of a flow related to each of the wireless terminals (); an allocating unit () configured to determine radio resources allocated to the selected wireless terminal () so as to maximize use efficiency of the radio resources included in a control cycle including a plurality of unit times; and a communication unit () configured to transmit information related to the determined radio resource to a base station () configured to perform wireless communication with the selected wireless terminal ().

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

A communication apparatus according to the present disclosure includes: an allocation controller configured to determine to preferentially allocate the radio resources to a control target flow over other flows in an emergency period, which is from a predetermined timing to a transmission deadline of the control target flow, of a transmission period of the control target flow in the radio terminal; and a calculation unit configured to calculate an amount of data that the radio terminal should transmit in a normal period, which is from an occurrence of the control target flow to the predetermined timing, in such a way that transmission of data of an entire control target flow is completed in the emergency period.

Communication apparatus, base station, radio resource allocation method, and computer readable medium

To provide a management server capable of changing conditions corresponding to delay requirements according to a change in wireless communication environment, a management server () according to the disclosure includes an update unit () configured to update any one of an uplink allowable delay associated with an uplink flow sent from a source communication terminal to an application server and a downlink allowable delay associated with a downlink flow sent from the application server to a destination communication terminal by using a delay of an end-to-end flow sent from the source communication terminal to the destination communication terminal through the application server and an allowable delay associated with the end-to-end flow, and a communication unit () configured to send the updated uplink allowable delay or the updated downlink allowable delay to a wireless access node that performs resource scheduling by using an uplink allowable delay or a downlink allowable delay.

Management server, wireless access node, communication system, communication method, resource management method, and computer readable medium

A network entity () sends, to a mobility management entity () or a subscriber server (), a request message in order to configure the mobility management entity () to report a second identifier to be used by a radio access network node () for identifying a radio terminal (). Further, the network entity () receives the second identifier from the mobility management entity () directly or through the subscriber server () and communicates with the radio access network node () by using the second identifier. It is thus, for example, possible to allow an MEC server (or an MEC application hosted on the MEC server) and the radio access network (RAN) node to directly exchange therebetween control messages regarding a specific radio terminal.

Mobility management entity, network entity, and method and computer readable medium therefor

A technique enabling diverse communication quality control for a communication service is provided. A communication apparatus includes a first means for storing a parameter notified from a control apparatus, wherein the control apparatus can send a control signal related to the communication path to the communication apparatus; and a second means that can perform communication quality control on a packet, based on a quality class of the communication path corresponding to the packet and the parameter corresponding to the communication path.

Communication apparatus, control apparatus, communication method, control method, and program

A technique enabling diverse communication quality control for a communication service is provided. A communication apparatus according to the present invention is a communication apparatus that performs communication over a communication path set up in a network, including: a first means for identifying the communication path corresponding to a packet; and a second means for adding quality information to the packet, wherein the quality information is selected from among a plurality of pieces of quality information associated with a quality class of the identified communication path.

Communication apparatus, control apparatus, communication system, communication method, control method, and program

The wireless communication terminal includes: a plurality of communication interfaces each of which corresponds to at least one of a plurality of wireless access systems; a first unit receiving an instruction from a prescribed control apparatus, the instruction including a wireless access system determined by the control apparatus based on a status of the wireless communication terminal, which changes along with movement of the wireless communication terminal; and a second unit communicating by using a communication interface corresponding to the instructed wireless access system.

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Tokyo, Japan

Nobuhiko Itoh