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Measurement pilot sending and receiving method and device, channel quality indication feedback method and device

A technology for channel quality indication and pilot measurement, applied in wireless communication, error prevention/detection using return channel, power management, etc. It can solve the problem of no measurement pilot power configuration method, and achieve accurate measurement, efficient and reasonable configuration Effect

Active Publication Date: 2015-11-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is currently no method for power configuration of the measurement pilot

Method used

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  • Measurement pilot sending and receiving method and device, channel quality indication feedback method and device
  • Measurement pilot sending and receiving method and device, channel quality indication feedback method and device
  • Measurement pilot sending and receiving method and device, channel quality indication feedback method and device

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] figure 1 It is a flow chart of a method for transmitting a measurement pilot according to an embodiment of the present invention. Such as figure 1 As shown, the method of sending the measurement pilot includes:

[0020] Step S102, the base station configures the transmission power of the measurement pilot.

[0021] Step S104, the base station periodically transmits the measurement pilot according to the configured transmission power.

[0022] The base station may configure the transmission power of the measurement pilot according to an agreed method. The agreed method includes: configuring the transmission power of the measurement pilot according to the number of ports for transmitting the measurement pilot. The transmission power of the measurement pilot is related to the power of the cell-specific pilot. When the nu...

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Abstract

The invention provides methods and devices for sending and receiving a measuring pilot frequency, and a feedback method and device of a channel quality indicator, wherein the method for sending the measuring pilot frequency comprises the following steps: a base station allocates the sending power of the measuring pilot frequency; and the base station periodically sends the measuring pilot frequency according to the allocated sending power. By means of the invention, the sending power of the measuring pilot frequency can be reasonably allocated so that efficient reasonable allocation of the sending power is ensured; and in addition, a terminal can more accurately measure channel quality according to the sending power information of the measuring pilot frequency.

Description

technical field [0001] The present invention relates to the field of communication, in particular to a method and device for sending and receiving measurement pilots, and a method and device for channel quality indication feedback. Background technique [0002] MIMO (Multiple Input Multiple Output) technology, as an important physical layer multi-antenna technology to improve transmission quality and efficiency, plays an important role in the new generation communication system. The LTE system supports multiple MIMO technologies such as transmit diversity, spatial multiplexing technology, and beam forming (BF, Beamforming). With the further evolution of the LTE standard, the system will support more antenna ports (such as eight antenna ports), and the MU-MIMO (multiple-input multiple-output for multiple users) technology will also be enhanced. In order to make better use of the advantages of MIMO technology, the pilot structure has also undergone corresponding changes. Dow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04H04L1/16
Inventor 徐婧潘学明丁昱肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD