Indication method, system and device of beam-forming granularity

A beamforming and granular technology, applied in transmission systems, diversity/multi-antenna systems, space transmit diversity, etc., to achieve flexible changes and improve demodulation performance

Active Publication Date: 2010-07-07
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to solve the problem of how to perform beamforming granularity indication during beamforming transmission

Method used

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  • Indication method, system and device of beam-forming granularity
  • Indication method, system and device of beam-forming granularity
  • Indication method, system and device of beam-forming granularity

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Embodiment Construction

[0032] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] An embodiment of the present invention proposes a beamforming granularity indication method 300, such as image 3 shown, including the following steps:

[0034] S301: The wireless sending device judges the beamforming mode to be adopted, and determines the forming granularity of the transmitted beamforming signal. As an embodiment of the present invention, the shaping granularity may be determined as a submultiple of the number of scheduled PRBs (Physical Resource Blocks, Physical Resource Blocks) used by the user.

[0035]S302: The wireless sending device notifies the wireless receiving device of the indication information of the shaping granularity through phy...

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Abstract

The invention provides an indication method, a system and a device of beam-forming granularity. A wireless transmitting device judges a beam-forming mode to be adopted and confirms the beam-forming granularity of a beam-forming signal to be sent; the wireless transmitting device informs a wireless receiving device with the indication information of the beam-forming granularity by the control information of a physical layer; and the wireless transmitting device sends the beam-forming signal to the wireless receiving device based on the beam-forming granularity. By adopting the method, the system and the device of the invention, the indication problem of the beam-forming granularity during beam-forming transmission is effectively solved, and the demodulation performance of the system is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, system and equipment for indicating beamforming granularity. Background technique [0002] In an LTE (Long Term Evolution, long-term evolution) system, the beamforming technology based on a dedicated pilot is based on a single stream, so the dedicated pilot is also single-port. In the subsequent evolution of LTE, in order to give full play to the technical advantages of smart antennas and increase the peak rate, it is necessary to introduce dual-stream or multi-stream beamforming data transmission. Regardless of whether it is single-stream or multi-stream beamforming, the processing process is similar: at the sending end, insert single-stream or multi-stream dedicated pilots into the transmitted data, and then shape the data according to a certain shaping granularity, and It is transmitted on multiple antennas; at the receiving end, channel estimat...

Claims

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Application Information

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IPC IPC(8): H04B7/08H04B7/06H04B1/707
Inventor 陈文洪缪德山索士强
Owner DATANG MOBILE COMM EQUIP CO LTD
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