JPWO2021161493A5

JPWO2021161493A5 -

Info

Publication number: JPWO2021161493A5
Application number: JP2022500167A
Authority: JP
Filing date: 2020-02-14
Publication date: 2022-08-08
Anticipated expiration: 2040-02-14

Description

また、本発明は、複数の通信方式の内のいずれかを用いて通信を行う通信装置における通信方法であって、送信処理部が、入力されたＩＰパケットが分割可能か否かを判断し、分割可能であれば、ＩＰパケットを分割して宛先を含むヘッダを付加して多重化セルを生成し、設定された無線通信方式に応じて指定された通信容量に合わせて多重化セルを複数連結して、送信する方法で、再送すべき多重化セルを優先的に取得し、再送すべき多重化セルのデータ量が通信容量に満たない場合に、分割された多重化セルを取得して、再送すべき多重化セルと、分割された多重化セルとを連結して、連結された多重化セルのデータ量が通信容量の上限になると送信し、連結された多重化セルのデータ量が通信容量に満たない場合には、分割不能なＩＰパケットを取得して、連結された多重化セルと共に送信する。 Further, the present invention is a communication method in a communication device that performs communication using any one of a plurality of communication methods, wherein a transmission processing unit determines whether or not an input IP packet can be divided, If division is possible, the IP packet is divided, a header including the destination is added, multiplexed cells are generated, and a plurality of multiplexed cells are concatenated according to the communication capacity specified according to the set wireless communication system. multiplexed cells to be retransmitted are preferentially acquired, and when the data amount of the multiplexed cells to be retransmitted is less than the communication capacity, divided multiplexed cells are acquired. , the multiplexed cells to be retransmitted and the divided multiplexed cells are concatenated, and when the data amount of the concatenated multiplexed cells reaches the upper limit of the communication capacity, the data amount of the concatenated multiplexed cells is transmitted. If the communication capacity is not met, the undivided IP packets are obtained and transmitted together with the concatenated multiplexed cells .

また、本発明によれば、複数の通信方式の内のいずれかを用いて通信を行う通信装置における通信方法であって、送信処理部が、入力されたＩＰパケットが分割可能か否かを判断し、分割可能であれば、ＩＰパケットを分割して宛先を含むヘッダを付加して多重化セルを生成し、設定された無線通信方式に応じて指定された通信容量に合わせて多重化セルを複数連結して、送信する方法で、再送すべき多重化セルを優先的に取得し、再送すべき多重化セルのデータ量が通信容量に満たない場合に、分割された多重化セルを取得して、再送すべき多重化セルと、分割された多重化セルとを連結して、連結された多重化セルのデータ量が通信容量の上限になると送信し、連結された多重化セルのデータ量が通信容量に満たない場合には、分割不能なＩＰパケットを取得して、連結された多重化セルと共に送信する通信方法としているので、異なるサービスのＩＰパケットであっても、多重化セルを連結して同一フレームで送信することができ、ＩＰパケットごとにフレームを生成する場合に比べて、プリアンブルやヘッダの割合を抑えて送信効率を向上させ、複数のサービスについて同等のＱｏＳ（遅延）を実現でき、更に、通信容量に合わせたデータ量で送信することで送信効率を一層向上させることができ、必要に応じて多重化セルを連結して再送することができ、通信の信頼性を保証することができ、再送が必要な多重化セルを優先的に送信でき、通信の信頼性を保証することができる効果がある。 Further, according to the present invention, there is provided a communication method in a communication device that performs communication using one of a plurality of communication methods, wherein a transmission processing unit determines whether or not an input IP packet can be divided. If it can be divided, the IP packet is divided, a header including the destination is added, multiplexed cells are generated, and multiplexed cells are generated according to the communication capacity specified according to the set wireless communication system. A multiplexed cell to be retransmitted is preferentially acquired by a method of concatenating and transmitting multiple cells, and when the data amount of the multiplexed cell to be retransmitted is less than the communication capacity, divided multiplexed cells are acquired. Then, the multiplexed cells to be retransmitted and the divided multiplexed cells are concatenated, and when the data amount of the concatenated multiplexed cells reaches the upper limit of the communication capacity, the data of the concatenated multiplexed cells is transmitted. When the amount of data is less than the communication capacity, the communication method acquires IP packets that cannot be divided and transmits them together with concatenated multiplexed cells. It can be concatenated and transmitted in the same frame, and compared to the case where a frame is generated for each IP packet, it reduces the ratio of preambles and headers, improves transmission efficiency, and provides the same QoS (delay) for multiple services. Further, transmission efficiency can be further improved by transmitting data in an amount that matches the communication capacity. Therefore, multiplexed cells requiring retransmission can be preferentially transmitted, and reliability of communication can be guaranteed .

Claims

A communication device that performs communication using one of a plurality of communication methods,
A transmission processing unit that performs transmission processing,
a transmitter that performs wireless transmission;
a packet queue for QoS processing of indivisible IP packets;
a multiplexing communication function unit that performs a process of dividing and concatenating IP packets that can be divided;
a data type determination unit that determines whether an input IP packet can be divided, outputs the IP packet to the packet queue if it cannot be divided, and outputs it to the multiplex communication function unit if it can be divided;
an output scheduler that acquires data from the packet queue and the multiplex communication function unit and outputs the data to the transmission unit as transmission data;
The multiplexing communication function unit divides the divisible IP packet input from the data type determination unit, adds a header including a destination to generate multiplexed cells, and at the time of transmission, the set wireless communication system a communication device that concatenates a plurality of said multiplexed cells in accordance with a communication capacity specified according to said request, and outputs said multiplexed cells to said output scheduler.

The multiplex communication function unit
a frame/cell converter that divides an input IP packet to generate multiplexed cells;
a transmission information cell queue holding the multiplexed cells;
a retransmission cell queue that holds cells that may be retransmitted among the multiplexed cells;
2. The communication apparatus according to claim 1, further comprising a cell concatenator that acquires a plurality of multiplexed cells from said retransmission cell queue and said transmission information cell queue, concatenates them, and outputs the multiplexed cells to an output scheduler at the time of transmission according to communication capacity.

3. The communication apparatus according to claim 2, wherein the cell connection unit preferentially acquires multiplexed cells to be retransmitted from the retransmission cell queue at the time of transmission.

When the amount of data of the multiplexed cells to be retransmitted obtained from the retransmission cell queue is less than the communication capacity, the cell connection unit obtains the multiplexed cells from the transmission information cell queue and uses them as the multiplexed cells obtained from the retransmission cell queue. 4. The communication apparatus according to claim 3, wherein the multiplexed cells obtained from said transmission information cell queue are connected and outputted.

An output scheduler acquires an indivisible IP packet from a packet queue and outputs it together with the concatenated multiplexed cell when the amount of data of the concatenated multiplexed cell from the cell concatenator is less than the communication capacity. 5. A communication device according to claim 4.

A communication method in a communication device that performs communication using any one of a plurality of communication methods,
The transmission processing unit
Determining whether or not an input IP packet can be divided, and if it can be divided, divides the IP packet, adds a header including a destination to generate a multiplexed cell, and conforms to the set wireless communication system. A method of connecting and transmitting a plurality of the multiplexed cells according to the communication capacity specified according to the
a multiplexed cell to be retransmitted is preferentially acquired, and when the amount of data in the multiplexed cell to be retransmitted is less than the communication capacity, the divided multiplexed cell is acquired and the multiplexed cell to be retransmitted is acquired; concatenating the multiplexed cells with the divided multiplexed cells, and transmitting when the amount of data in the concatenated multiplexed cells reaches the upper limit of the communication capacity;
A communication method for obtaining an IP packet that cannot be divided and transmitting it together with the concatenated multiplexed cell when the amount of data in the concatenated multiplexed cell is less than the communication capacity .