JP2015186154A5

JP2015186154A5 -

Info

Publication number: JP2015186154A5
Application number: JP2014062730A
Authority: JP
Filing date: 2014-03-25
Publication date: 2017-04-20
Anticipated expiration: 2034-03-25

Description

上記目的を達成するための一手段として、本発明の通信装置は以下の構成を備える。すなわち、通信装置であって、他の通信装置への送信データに基づいて、複数のパケットを生成する生成手段と、前記生成手段により生成された前記複数のパケットのそれぞれについて、後続のパケットが存在するか否かを判定する判定手段と、前記判定手段より後続のパケットが存在すると判定された場合に、前記生成手段により生成されたパケットを保持する保持手段と、前記判定手段より後続のパケットが存在しないと判定された場合、もしくは、前記他の通信装置の受信バッファの空きサイズよりも前記保持手段が保持するパケットのサイズの方が大きい場合に、前記保持手段により保持されたパケットを、前記他の送信装置へ送信する処理を行う送信部に転送する転送手段と、を有することを特徴とする。
As a means for achieving the above object, a communication apparatus of the present invention comprises the following arrangement. That is, an communication apparatus, based on the transmission data to another communication apparatus, a generating means for generating a plurality of packets, for each of the plurality of packets generated by the generating means, subsequent packets A determination unit that determines whether or not a packet exists; a holding unit that holds a packet generated by the generation unit when it is determined that there is a subsequent packet from the determination unit; and a packet that is subsequent to the determination unit When the packet held by the holding unit is larger than the empty size of the reception buffer of the other communication device, or the packet held by the holding unit , And a transfer means for transferring to a transmission unit for performing processing to transmit to the other transmission device .

Claims

A communication apparatus,
Generating means for generating a plurality of packets based on transmission data to another communication device;
Determining means for determining whether or not there is a subsequent packet for each of the plurality of packets generated by the generating means;
Holding means for holding the packet generated by the generating means when it is determined by the determining means that there is a subsequent packet;
When it is determined by the determining means that there is no subsequent packet , or when the size of the packet held by the holding means is larger than the free size of the reception buffer of the other communication device , the holding means Transfer means for transferring the packet held by the transmission unit to perform processing for transmitting to the other transmission device ;
A communication apparatus comprising:

Even if the transfer means determines that there is a subsequent packet from the determination means, if the number of packets held by the holding means reaches a predetermined number, the held packet The communication apparatus according to claim 1, wherein the communication devices are collectively transferred to the transmission unit.

The communication apparatus according to claim 2, further comprising setting means for setting the predetermined number based on a reception buffer size of the other communication apparatus.

Receiving means for receiving a response to the packet transferred by the transmitter from the other communication device;
Setting means for setting the predetermined number based on the response received by the receiving means;
The communication device according to claim 2, further comprising:

The said generation | occurrence | production means divides | segments the said transmission data into the size which can be transmitted at once, and produces | generates a packet by adding a protocol header with respect to each of the divided | segmented data. The communication apparatus according to claim 1.

When the determination means determines that there is no subsequent packet, the information processing apparatus further includes an adding means for adding a flag indicating that the subsequent packet does not exist to the determined packet. Item 6. The communication device according to any one of Items 1 to 5.

7. The communication apparatus according to claim 1, wherein the transfer by the transfer means is transfer using an SDIO (Secure Digital Input / Output) protocol.

A method of controlling a communication device,
A generation step of generating a plurality of packets based on transmission data to another communication device;
A determination step of determining whether or not there is a subsequent packet for each of the plurality of packets generated in the generation step;
A holding step for holding the packet generated in the generation step when it is determined in the determination step that a subsequent packet exists;
When it is determined that there is no subsequent packet in the determination step , or when the size of the packet held in the holding step is larger than the empty size of the reception buffer of the other communication device , the holding A transfer step of transferring the packet held in the step to a transmission unit that performs a process of transmitting the packet to the other transmission device ;
A method for controlling a communication apparatus, comprising:

A program that causes a computer to function as the communication device according to claim 1.