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Asymmetric flexible communication transceiver and communication system

It is a communication sending and receiving, asymmetric technology, which is applied in the transmission system, electrical components, etc. It can solve the problem of not being able to better adapt to the bandwidth, and achieve the effect of improving the efficiency of system spectrum use, increasing channel capacity, and improving the flexibility of network deployment.

Inactive Publication Date: 2013-01-23
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of multimedia services and voice services, this method cannot better meet the bandwidth requirements for parallel transmission of multiple multimedia services

Method used

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  • Asymmetric flexible communication transceiver and communication system
  • Asymmetric flexible communication transceiver and communication system
  • Asymmetric flexible communication transceiver and communication system

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Embodiment Construction

[0026] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] see Figure 2 to Figure 4 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides an asymmetric flexible communication transceiver and a communication system. According to the transceiver, a flexible communication control unit outputs uplink and downlink transmitting / receiving control information which independently changes to a flexible frequency synthesis unit to generate a transmitting / receiving reference signal according to asymmetric communication requirements; during transmitting, a flexible transmitting unit processes a baseband transmitting signal into a digital transmitting signal based on the transmitting reference signal and according to the transmitting control information and transmits a radio frequency signal through tunable up-conversion and power amplification by a variable duplexer; and during receiving, the variable duplexer receives the radio frequency signal, transmits a radio frequency receiving signal to the baseband through tunable down-conversion based on the receiving reference signal, generates a digital receiving signal and extracts a corresponding baseband receiving signal from the digital receiving signal according to the receiving control information. The communication system comprises a base station with the transceiver and a terminal with the transceiver.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an asymmetric flexible communication transceiver and a communication system. Background technique [0002] Currently commonly used duplex transmission modes mainly include: frequency division duplex (FDD) system, time division duplex (TDD) system, and hybrid duplex (HFDD) system. Wherein, the transmission / reception service data of the frequency division duplex system adopts a fixed transmission channel with symmetrical channel bandwidth, and transmits at the same time. Receive business data using the same transmission frequency band, time-sharing transmission; hybrid duplex (HFDD) system uses FDD spectrum mode, but transmit and receive time-sharing transmission, currently mostly used in WiMAX systems. [0003] The above three methods have their own advantages in terms of spectrum utilization efficiency, coverage quality, and implementation cost. For the new-generation broa...

Claims

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Application Information

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IPC IPC(8): H04B1/38H04B1/44
Inventor 王萍
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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