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Signal transmitting device and downlink signal transmitting method

A signal transmission and signal technology, applied in the field of communication, can solve the problems of small beam transmission gain and limited signal coverage, etc.

Active Publication Date: 2019-04-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Using a wide beam, the beam transmission gain is small, especially in a multi-antenna system with a large antenna array, which will result in limited coverage of the transmitted signal

Method used

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  • Signal transmitting device and downlink signal transmitting method
  • Signal transmitting device and downlink signal transmitting method
  • Signal transmitting device and downlink signal transmitting method

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Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0060] The various technologies described in this paper can be used in various communication systems, such as the current 3G communication system and the next generation communication system, including wideband code division multiple access (WCDMA, wideband code division multiple access), time division synchronous code division multiple access (TD- SCDMA, time division-synchronization code division multiple access) and other 3G communication systems; long-term evolution (LTE, Long-Term Evolution) communication systems and their subsequent evolution systems and other next-generation communication systems.

[0061] The method provided by the embodiment of the present invention relates to a base station, and the base station may be a Node B (Node B)...

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Abstract

Embodiments of the present invention provide a signal transmission device and a downlink signal transmission method. By dividing a downlink common channel signal that needs to be sent by using a wide beam into multiple groups of grouped signals, for each group of grouped signals, different radio frequencies in a multi-antenna system are respectively Signal weighting is performed on the channel, and the weighted grouped signals are combined to obtain the weighted downlink common channel signal and transmitted, which makes full use of the transmit power of each radio frequency channel in the multi-antenna system, thereby improving the transmit gain of the wide beam and further improving the The coverage of the downlink common channel signal improves the signal transmission effect.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a signal transmitting device and a downlink signal transmitting method. Background technique [0002] In order to meet the increasing data transmission rate requirements of user equipment (UE, user equipment), multiple-input-output (MIMO, multiple-input multiple-output) technology is widely used in the third generation (3G, the3 rd generation) and next-generation communication systems, among which multi-antenna technology is an important part of MIMO technology. [0003] Using multi-antenna technology, by weighting the signal to be transmitted, beams of different shapes and directions can be formed in space to meet the transmission requirements of different signals. For example, wide beams and narrow beams can be formed by dividing by wavelength, wherein the wide beams can be used to transmit downlink signals such as downlink common channel si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
CPCH04B7/0615H04W72/23H04B7/06H04B7/0456H04W72/0453
Inventor 蒋亚军张劲林
Owner HUAWEI TECH CO LTD
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