Signature sequence of sending structure of implying userí»s control information, transmitting and receiving method

A signature sequence and control information technology, applied in user identity/authority verification, wireless communication, communication between multiple stations, etc., can solve problems such as waste of reserved resources and unreliable performance, and achieve overcoming interference and reliable transmission way, to achieve the effect of low complexity
CN101094027AActive Publication Date: 2007-12-26上海赟璟信息技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海赟璟信息技术有限公司
Publication Date
2007-12-26

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Abstract

The mentioned sending structure includes a user signature sequence (USS) and user-control info (UCI). The time domain circular shift, between the mentioned signature sequence with implicit user-control info and USS, is an integer multiplied by Ns, the step length of circular shift. At the integer locates the control info. This invention provides a reliable way to transmit user-control info in the multi-user competing channel. It takes full advantage of the excellent related characteristics of the Zadoff-chu sequence to overcome interference from multi-user. In addition, this invention can be simply realized. Due to the sameness of the detection of the user signature sequence (USS) with a special structure as the detection of the traditional USS, the former USS can carry user-control information without adding extra complication to the user detection.
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Description

technical field

[0001] The invention belongs to the technical field of wireless communication, in particular to the air signal transmission technology in multi-carrier communication. Background technique

[0002] In a wireless communication system, due to the rectangular frequency spectrum of Orthogonal Frequency Division Multiplexing (OFDM) and the low integration of the system brought about by the use of Fast Fourier Transform (FFT), it can effectively improve the efficiency of the downlink at a relatively high spectral efficiency. system capacity, coverage and data transmission speed. As a broadband data communication technology, OFDM has been widely used in various radio frequency environments, such as high-speed digital subscriber loops (HDSLs), asymmetric digital subscriber loops (ADSLs), and digital broadcasting. OFDM divides the complete frequency band into many parallel sub-carriers, which are used to transmit parallel data streams. Since the guard time slot is in...

Claims

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