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Wireless data transmission method, communication system, wireless terminal device, and wireless base station device

A wireless communication system and wireless terminal technology, which is applied in the field of wireless data transmission, can solve problems such as delay, and achieve the effect of reducing transmission delay

Active Publication Date: 2017-05-03
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a phenomenon that there is a delay in sending a signal from the first communication device to the second communication device

Method used

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  • Wireless data transmission method, communication system, wireless terminal device, and wireless base station device
  • Wireless data transmission method, communication system, wireless terminal device, and wireless base station device
  • Wireless data transmission method, communication system, wireless terminal device, and wireless base station device

Examples

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Embodiment Construction

[0037] Hereinafter, preferred embodiments will be described with reference to the drawings. figure 1 It is a diagram showing a configuration example of a communication system. The communication system 100 includes a first communication device 1 and a second communication device 2 . A first link for transmitting signals from the first communication device 1 to the second communication device 2 by wireless communication is formed between the first communication device 1 and the second communication device 2 . In addition, a second link for transmitting signals from the second communication device 2 to the first communication device 1 by wireless communication is formed between the first communication device 1 and the second communication device 2 .

[0038] For example, the first communication device 1 and the second communication device 2 may be a wireless base station device and a wireless terminal device of a mobile communication system, respectively. In this case, the firs...

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Abstract

The present invention relates to a wireless data transmission method, a communication system, a wireless terminal device, and a wireless base station device. The wireless base station device (1) transmits a signal and data indicating a pattern in random access to an asynchronous wireless terminal device (2) that is a wireless terminal device that cannot synchronize with the wireless base station device (1) in an uplink wireless section. The asynchronous wireless terminal device (2) transmits a response signal generated based on whether data has been received correctly and a signal indicating the pattern received from the wireless base station device (1) to the wireless base station device (1) via a random access channel.

Description

technical field [0001] The embodiments discussed in this specification relate to wireless data transmission between a wireless terminal device and a wireless base station device. Background technique [0002] A technique is known in which a response signal notifying whether or not decoding of a received signal has been successful is transmitted to a communication device on the transmitting side. An example of such a response signal is an acknowledgment signal (ACK) / negative acknowledgment signal (NACK). [0003] Now, a device that transmits a signal is referred to as a first communication device, and a device that receives a signal is referred to as a second communication device. In addition, the wireless signal link that transmits signals from the first communication device to the second communication device is referred to as the first link, and the wireless signal link that transmits signals from the second communication device to the first communication device is referre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04L1/16H04W56/00H04W74/08
CPCH04L1/0045H04L1/1829H04W74/0833H04W74/08H04W56/001H04W56/004H04W74/0866H04W88/08H04W72/04
Inventor 河崎义博太田好明
Owner FUJITSU LTD
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