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Beam guidance method, and inter-beam coordinated transmission method and apparatus

A beam and beam pointing technology, which is applied in transmission systems, radio transmission systems, location diversity, etc., can solve the problems of not being able to quickly obtain information and channel status, and not being able to determine cooperative transmission relationships in real time

Active Publication Date: 2018-03-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] To sum up, the disadvantages of the existing technology are: when there is no direct connection between the wireless access point and the terminal, the relative orientation information and channel status between the wireless access point and the terminal cannot be quickly obtained, and the channel status cannot be determined in real time. Potential cooperative transmission relationships between this AP and its neighboring AP beams

Method used

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  • Beam guidance method, and inter-beam coordinated transmission method and apparatus
  • Beam guidance method, and inter-beam coordinated transmission method and apparatus
  • Beam guidance method, and inter-beam coordinated transmission method and apparatus

Examples

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Embodiment 1

[0206] The embodiment of the present invention shows a flow chart of a beam steering method, which is applied to the network side, and the method includes the following steps:

[0207] The first and second wireless access points respectively send channel sounding beams to the terminal, and receive feedback information returned by the terminal in response to the channel sounding beam;

[0208] Determine the relative direction between the first wireless access point and the terminal according to the feedback information of the channel sounding beam sent by the terminal to the first wireless access point; and / or, according to the terminal's second wireless access The feedback information of the channel sounding beam sent by the point to determine the relative direction between the second wireless access point and the terminal;

[0209] The relative direction between the first wireless access point and the terminal is taken as the direction of the communication beam transmitted by the fi...

Embodiment 2

[0255] Another beam steering method shown in the embodiment of the present invention is applied to the terminal side, and the method includes the following steps:

[0256] The terminal receives the channel sounding beams respectively sent by the first and second wireless access points;

[0257] The terminal sends feedback information in response to the channel sounding beam to at least one of the first and second wireless access points; the feedback information is used to determine the connection between the first wireless access point and the terminal The relative direction of, or used to determine the relative direction between the second wireless access point and the terminal;

[0258] The terminal uses a communication beam to perform service data transmission with at least one of the first and second wireless access points;

[0259] Wherein, the beam direction of the communication beam is determined by the relative direction between the first wireless access point and the terminal...

Embodiment 3

[0282] image 3 It is an inter-beam coordinated transmission method shown in an embodiment of the present invention, which is applied to a network survey. Based on the beam steering method of the first embodiment, the method includes the following steps:

[0283] S310. The second wireless access point uses the same time-frequency resource as the first wireless access point to send scheduling information to the terminal on the second frequency band.

[0284] S320. The second wireless access point configures the first communication beam in the relative direction between the second wireless access point and the terminal.

[0285] Specifically, the second wireless access point uses the same time-frequency resource as the first wireless access point to send scheduling information to the terminal on the second frequency band, including any one of the following implementation steps:

[0286] In the macrodiversity transmission step of scheduling information, in the time interval sequence confi...

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Abstract

The invention discloses a beam guidance method which comprises that a first wireless access point and a second wireless access point send channel detection beams to a terminal; a relative direction between the first wireless access point and the terminal is determined according to feedback information sent by the terminal to the first wireless access point, and a relative direction between the second wireless access point and the terminal is determined according to feedback information sent by the terminal to the second wireless access point; the relative direction between the first wireless access point and the terminal is taken as a direction of a communication beam transmitted by the first wireless access point, and the communication beam is configured in the beam direction by means ofthe first wireless access point, and the relative direction between the second wireless access point and the terminal is taken as a direction of a communication beam transmitted by the second wirelessaccess point, and the communication beam is configured in the beam direction by means of the second wireless access point. The invention also discloses an inter-beam coordinated transmission method and apparatus.

Description

Technical field [0001] The present invention relates to the field of radio communication, in particular to a beam steering method, a method and device for coordinated transmission between beams. Background technique [0002] It is a requirement of the subsequent evolution of the LTE (Long term Evolution) system to realize the rapid migration of the terminal communication link between the cells through the coordinated transmission between the cells. Multi-point coordinated transmission in the LTE system is proposed to increase the transmission rate of the cell edge terminal, specifically to increase the signal strength received by the terminal in the edge area. The realization of coordinated multipoint transmission (CoMP) is based on the premise of inter-cell interference coordination. Coordinated multipoint transmission must be a transmit diversity and MIMO transmission method that can be achieved when inter-multipoint interference is avoided. [0003] CS / CB (Coordinated Schedulin...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B7/024H04W16/28
CPCH04B7/024H04B7/0617H04B7/0619H04W16/28H04B7/06
Inventor 刁心玺
Owner ZTE CORP
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