Wireless communication system, data transmitter apparatus, data wireless receiver apparatus, and wireless communication method

摘要

A transport header analyzing unit (133) analyzes, on the basis of the TCP header of transport data transmitted from a transmitter terminal (100) to a receiver terminal (200), whether the transport data is an acknowledgement response in a TCP communication. If the transport data is not an acknowledgement response, a synchronization pre-processing unit (134) determines, on the basis of the TCP header of the transport data, whether synchronization information, which is required to operate in a power saving mode together with an access point (300), is added to the IP header of the transport data. A synchronization information processing unit (235) adds, to the IP header of the transport data indicating an acknowledgement response to received data that is received from the transmitter terminal (100), the synchronization information that is required to operate in the power saving mode together with the access point (300).

主权项

1. A wireless communication system comprising:
a data transmitting apparatus on a transmitting side; a wireless base station that performs wired or wireless communication with the data transmitting apparatus; and a data wireless receiving apparatus on a receiving side that TCP/IP-communicates transmission/received data including an IP header and a TCP header with the data transmitting apparatus via the wireless base station using a TCP/IP protocol, wherein: the data transmitting apparatus comprises: a transmission header analyzing section that analyzes, based on the TCP header of a first transmission data transmitted from the data transmitting apparatus to the data wireless receiving apparatus, whether or not the first transmission data is an acknowledgment response in a TCP communication; a synchronization preprocessing section that determines, when the first transmission data is other than the acknowledgment response, whether or not to add to the IP header of the first transmission data, synchronization information necessary to operate with the wireless base station in a power-saving mode, the determination being based on the TCP header of the first transmission data; and a transmission data transfer section that transfers the first transmission data including the IP header with the synchronization information added or not added, and the data wireless receiving apparatus comprises: a synchronization information processing section that adds synchronization information necessary to operate with the wireless base station in the power-saving mode, to the IP header of a second transmission data indicating the acknowledgment response to the received data received from the data transmitting apparatus, among transmission data transmitted from the data wireless receiving apparatus to the data transmitting apparatus; a received data decision section that decides whether or not the synchronization information has been added to the IP header of the received data; a transmission timing adjusting section that controls transfer timing of the second transmission data according to a decision result in the received data decision section; and a transmission data transfer section that transfers the second transmission data according to the transfer timing.