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Signal sending method and device

A technology of signal transmission and signal transmission, which is applied in the field of communication, can solve the problems of high hardware cost, high complexity of equipment at the transmitting end and receiving end, and achieve the effect of saving hardware cost, reducing equipment complexity, and optimizing the wireless communication system

Inactive Publication Date: 2017-06-27
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the equipment complexity of the sending end and the receiving end of the existing wireless communication system is high, and the hardware cost is large.

Method used

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  • Signal sending method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] image 3 This is a flow chart of a signal sending method provided in Embodiment 1 of the present invention. This embodiment is applicable to a situation where a signal is sent by a sending end. The method can be executed by a signal sending end of a wireless communication system and specifically includes the following steps:

[0034] Step 110: Obtain a transmission matrix of the signal transmission system.

[0035] The wireless channel is the signal transmission medium in the wireless communication system, and the channel characteristics of the wireless channel are described by the transmission matrix. In this embodiment, the transmission matrix of the signal transmission system specifically refers to the transmission matrix of the actual channel.

[0036] At present, there are many ways to obtain the channel transmission matrix. Typically, the transmission matrix of the signal transmission system can be obtained through the channel estimation method. The preferred channel est...

Embodiment 2

[0046] Figure 4 This is a flowchart of a signal sending method provided in the second embodiment of the present invention. This embodiment is based on the first embodiment, and both steps 110 and 120 of the first embodiment are optimized, which specifically includes the following steps:

[0047] Step 210: Use the M transmitting antennas in the signal transmission system to transmit pilot signals.

[0048] In this embodiment, in order to determine the transmission matrix of the wireless communication system, the transmission coefficient h between each transmitting and receiving antenna needs to be calculated separately. For example, if the wireless communication system includes two transmitting antennas and one receiving antenna, the calculation is required The transmission matrix H is [h 11 , H 12 ], where h 11 Is the transmission coefficient between the first transmitting antenna and the receiving wire, h 12 Is the transmission coefficient between the second transmitting antenna a...

Embodiment 3

[0061] Figure 5 This is a flowchart of a signal receiving method provided in the third embodiment of the present invention. This embodiment is applicable to a situation where the receiving end receives a signal. The method can be executed by a signal receiving device of a wireless communication system, and specifically includes the following steps:

[0062] Step 310: Receive the target transmission signal transmitted through the signal transmission system through at least one receiving antenna, where the target transmission signal is generated according to the transmission matrix of the signal transmission system and the target reception signal.

[0063] When the transmitting antenna transmits the target transmission signal, the target transmission signal can be received by the receiving antenna after being transmitted through the wireless channel in the signal transmission system. The target transmission signal is generated according to the transmission matrix of the signal transm...

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Abstract

The invention discloses a signal sending method and a device. The signal sending method comprises steps of acquiring a transmission matrix of a signal transmission system; according to a target receiving signal and the transmission matrix, generating a target sending signal; and emitting the target sending signal. According to the invention, effective transmission of signals can be achieved without precoding and balancing; and when complexity of a sending end device is greatly reduced, quite high data transmission rate can be achieved.

Description

Technical field [0001] The embodiments of the present invention relate to communication technology, and in particular, to a signal sending method and device. Background technique [0002] With the continuous development of wireless communication technology, the system puts forward higher requirements for both information rate and transmission quality. With the introduction of multi-antenna technology, people can use space resources to communicate. Among them, the typical communication system based on multiple antenna technology mainly includes: MISO (Multiple Input Single Output) system, that is: the communication system includes multiple transmitting antennas and one receiving antenna; SIMO (Singles Input Multiple Output, A single-input multiple-output) system, that is, a communication system includes one transmitting antenna and multiple receiving antennas; and MIMO (Multiple Input Multiple Output), that is, a communication system that includes multiple transmitting antennas an...

Claims

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Application Information

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IPC IPC(8): H04B7/04H04B7/06H04B7/005
CPCH04B7/0413H04B7/005H04B7/06
Inventor 董付现孙鹏俞岚
Owner BEIJING XINWEI TELECOM TECH
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