A multi-antenna transmission system of wireless signal, method and wireless communication system

A technology of a wireless communication system and a transmission system, which is applied in the field of wireless communication systems, and can solve problems such as the inability to obtain fixed transmission antenna cyclic shifts, waste of antenna space resources, etc.
CN1964218AInactive Publication Date: 2007-05-16HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2007-05-16
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The multi-antenna emission system comprises: a space-time process unit to process input data flow and output multiple frequency-domain signal data flow, a modulation unit for OFDM modulating to output relative time-domain signal flow; a data flow separation unit to select emission antenna group for every time-domain signal flow and allocate data to relative emission antenna group, and a cycle delay emission module to circular delay all time-domain signal flow on antenna groups. This invention can obtain both space and frequency diversity gains.
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Description

technical field

[0001] The invention belongs to the field of wireless communication, and in particular relates to a system and method for transmitting wireless signals through a plurality of transmitting antennas in diversity, and a wireless communication system realized by using the multi-antenna transmitting system. Background technique

[0002] With the development of wireless mobile communication, users have put forward higher and higher requirements for the rate and quality of service of wireless communication, but the further development of wireless communication is limited due to the lack of wireless spectrum resources. On the other hand, the multipath of wireless channels and time-varying characteristics will cause great damage to the signal transmitted in it. These two practical problems have become obstacles to the development of wireless communication. The MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) technology that has appeared in recent ...

Claims

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