A kind of information transmission method and device based on multi-point cooperative transmission

A multi-point coordination and information transmission technology, applied in the field of communication, to achieve the effect of increasing feedback overhead, realizing flexible selection and dynamic switching, and good flexible selection and dynamic switching

Active Publication Date: 2011-12-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There is no suitable feedback method for various schemes (CS / CB, JP, dynamic transmission point selection, etc.) in the prior art

Method used

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  • A kind of information transmission method and device based on multi-point cooperative transmission
  • A kind of information transmission method and device based on multi-point cooperative transmission
  • A kind of information transmission method and device based on multi-point cooperative transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 of the present invention provides an information transmission method based on coordinated multi-point transmission, and takes the processing at the UE side as an example for description. Such as Figure 4 As shown, the information transmission method based on coordinated multi-point transmission includes the following steps:

[0045] In step 401, the UE determines a primary transmission point.

[0046] The network side device may configure a measurement set for the UE, and the configuration information of the measurement set includes identification information of multiple transmission points and pilot configuration information of multiple transmission points; or only includes pilot configuration information of multiple transmission points. The pilot configuration information includes but is not limited to one or any combination of the following: CSI-RS period, offset, resource location, sequence, information on the number of antenna ports, transmission power...

Embodiment 2

[0058] Embodiment 2 of the present invention provides an information transmission method based on coordinated multi-point transmission, and takes the processing of a network side device as an example for description. Wherein, the device implementing the embodiment of the present invention on the network side (such as a base station device) may be a device controlling multiple transmission points, or may be a device among multiple transmission points, which will not be described in this embodiment of the present invention.

[0059] Such as Figure 5 As shown, the information transmission method based on coordinated multi-point transmission includes the following steps:

[0060] Step 501, the network side device receives RANK information and channel state information for the primary transmission point from the UE. Wherein, the channel state information includes but not limited to: PMI and / or CQI.

[0061] Step 502, the network side device performs processing according to the R...

Embodiment 3

[0068] Embodiment 3 of the present invention provides an information transmission method based on coordinated multi-point transmission, and takes the processing of the network side device and the UE side as an example for description. The device implementing the embodiment of the present invention on the network side (such as a base station device) may be a device that controls multiple transmission points, or may be a device among multiple transmission points, such as Figure 6 As shown, the information transmission method based on coordinated multi-point transmission includes the following steps:

[0069] Step 601, the network side device configures a measurement set for the UE, and the configuration information of the measurement set includes identification information of multiple transmission points and pilot configuration information of multiple transmission points; or only includes pilot configuration information of multiple transmission points . The pilot configuration...

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Abstract

The embodiment of the invention discloses an information transmission method and a device based on coordinated multiple point transmission. The method comprises the following steps that: user equipment (UE) determine a main transmission point; the user equipment determine RANK information of the main transmission point and channel state information corresponding to the RANK information; and the user equipment transmit the RANK information of the main transmission point and the channel state information to a network side device. In the embodiment of the invention, the UE reports the channel state information of limited RANK of each transmission point, the channel state information of unlimited RANK of the main transmission point, relative phase information between transmission points, and the like, to the network side device, thereby helping the network side device to implement flexible selection and dynamic switching of transmission schemes better without obviously increasing feedback overhead of the UE.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an information transmission method and equipment based on coordinated multi-point transmission. Background technique [0002] CoMP (Coordinated Multiple Point Transmission, Coordinated Multiple Point Transmission) technology is the collaboration between multiple geographically separated transmission points. Generally speaking, multiple transmission points may be base stations in different cells, or multiple separate transmission devices in the same cell. Among them, CoMP technology is mainly divided into two categories: CS / CB (Joint Scheduling / Beamforming) and JP (Joint Processing). [0003] Through the coordination of time, frequency and space resources between cells, CS / CB allocates mutually orthogonal resources for different UEs (User Equipment, user equipment) to avoid mutual interference; since inter-cell interference is a constraint The main factor of the U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/06
CPCH04B7/0417H04L1/0026H04L1/06H04B7/024H04B7/0621H04W72/21H04W72/563H04L5/0035H04W24/08H04W72/02H04B7/0626H04L5/0048H04L5/0057H04L41/0806H04W24/10
Inventor 高秋彬张然然陈文洪彭莹李辉
Owner DATANG MOBILE COMM EQUIP CO LTD
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