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Information transmission method, base station, and system

A technology for transmitting information and base stations, which is applied in the field of transmitting information and can solve problems such as limiting the potential of NOMA

Active Publication Date: 2017-03-01
CHINA TELECOM CORP LTD
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Problems solved by technology

[0011] However, under the premise of non-orthogonal transmission of spatial signals between different beams in the NOMA system, in order to ensure reliable reception of DMRS, NOMA needs to use orthogonal resource mapping for DMRS, while the existing system supports only 2 Orthogonal DMRS Maps, Limiting NOMA Potential

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  • Information transmission method, base station, and system
  • Information transmission method, base station, and system
  • Information transmission method, base station, and system

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0045] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses an information transmission method, a base station and a system, and relates to the technical field of wireless communication. According to the embodiment of the invention, the method comprises the steps: carrying out the configuration of a user terminal which needs to carry out NOMA transmission through wireless resource control signaling, and configuring the user terminal in an NOMA transmission mode; transmitting a reference signal to the user terminal, so that the user terminal carries out the estimation of current channel quality; carrying out the resource dispatching of the user terminal through employing the channel quality fed back by the user terminal; transmitting the transmission information to the user terminal, wherein the corresponding DMRS information and DCI information are inserted into corresponding subframes, so that the user terminal carries out the demodulation of the received information through the DMRS information and DCI information, thereby achieving the mapping of a plurality of orthogonal DMRSs, effectively supporting the non-orthogonal transmission between different users in NOMA, and improving the NOMA transmission performances.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, base station and system for transmitting information. Background technique [0002] The Multiple-Input Multiple-Output (MIMO) technology of multiple antenna space resources, due to its great potential in improving the reliability and speed of wireless communication transmission, has become a 3GPP (3rd Generation Partnership Project, third generation Partner Program), LTE (Long Term Evolution, long-term evolution) and other mainstream wireless communication standard core technology. [0003] In order to perform channel estimation required for data demodulation and measurement feedback of downlink channel information in a user terminal (UE), LTE Rel-8 defines a cell reference signal (Cell Reference Signal, CRS) that supports a maximum of 4 ports. In LTE Rel-10, the number of transmit antenna ports supported by downlink MIMO is increased to eight. ...

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Application Information

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IPC IPC(8): H04L25/02
Inventor 佘小明朱剑驰杨姗陈鹏毕奇
Owner CHINA TELECOM CORP LTD
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