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Method and equipment for reporting multi-point channel state information

A channel state information, multi-point technology, applied in the directions of transmission path sub-channel allocation, wireless communication, signaling, etc., can solve the problem of not being able to report the channel state information of terminal equipment.

Active Publication Date: 2012-09-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Embodiments of the present invention provide a method and device for reporting multi-point channel state information, which solves the problem that the terminal device cannot report channel state information under one or more interference assumptions in the existing technical solutions

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  • Method and equipment for reporting multi-point channel state information
  • Method and equipment for reporting multi-point channel state information

Examples

Experimental program
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Embodiment 1

[0137] This embodiment provides a method for reporting multi-point channel state information that is implemented by periodic reporting based on a reporting mode configuration based on multiple reference signal resource pairs.

[0138] First, configure the following resources for the network:

[0139] Two channel measurement CSI-RS resources: CSI-RS resource a1, CSI-RS resource a2.

[0140] Two interference measurement reference signal resources: interference measurement reference signal resource b1 and interference measurement reference signal resource b2.

[0141] At the same time, configure the terminal device to report RI, CQI, and PMI information.

[0142] After the above configuration is completed, the network semi-statically notifies the terminal device of the reference signal resource pair by using high-layer signaling.

[0143] In this embodiment, it is assumed that the network notifies the terminal device of three reference signal resource pairs by notifying the cha...

Embodiment 2

[0155] This embodiment provides a method for reporting multi-point channel state information based on aperiodic reporting, which is realized by adopting a reporting mode configuration based on multiple reference signal resource pairs.

[0156] First, configure the following resources for the network:

[0157] Three channel measurement CSI-RS resources: CSI-RS resource d1, CSI-RS resource d2, and CSI-RS resource d3.

[0158] Two interference measurement reference signal resources: an interference measurement reference signal resource e1 and an interference measurement reference signal resource e2.

[0159] At the same time, configure the terminal device to report RI, CQI, and PMI information.

[0160] After the above configuration is completed, the network numbers all channel measurement reference signal resources and interference measurement reference signal resources one-to-one:

[0161] Reference signal resource pair f1 (CSI resource d1--interference measurement reference ...

Embodiment 3

[0175] This embodiment provides a multi-point channel state information reporting method that adopts periodic reporting based on multiple channel state information reporting configurations.

[0176] First, configure the following resources for the network:

[0177] Two channel measurement CSI-RS resources: CSI-RS resource a1, CSI-RS resource a2.

[0178] Two interference measurement reference signal resources: interference measurement reference signal resource b1 and interference measurement reference signal resource b2.

[0179] At the same time, configure the terminal device to report RI, CQI, and PMI information.

[0180] The network uses high-level signaling to configure three channel state information reporting configurations for the terminal equipment: channel state information reporting configuration with sequence number 1, channel state information reporting configuration with sequence number 2, and channel state information reporting configuration with sequence numbe...

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Abstract

The embodiment of the invention discloses a method and equipment for reporting multi-point channel state information. By adoption of the technical scheme provided by the embodiment of the invention, corresponding report modes can be configured for reference signal resource pairs which respectively consist of channel measurement reference signal resources and interference measurement reference signal resources and are allocated to terminal equipment, or a plurality of channel state information report configurations which comprise the corresponding report modes can be configured for the terminal equipment, a reference signal resource pair which consists of the channel measurement reference signal resources and the interference measurement reference signal resources is allocated to each channel state information report configuration, and the terminal equipment reports the channel state information of the corresponding reference signal resource pairs according to the corresponding report modes, so the terminal equipment can report the channel state information under one or more hypotheses to one or more transmission points.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and equipment for reporting multipoint channel state information. Background technique [0002] In the LTE-A (Long Term Evolution Advance, long-term evolution enhanced) system, in order to reduce the neighbor cell interference of the cell coverage edge UE (User Equipment, terminal equipment) and improve the experience of the cell edge terminal equipment, CoMP (Coordinated Multipoint Transmission) is adopted. / Reception, coordinated multipoint transmission) technology. [0003] Coordinated multipoint transmission technology is the cooperation among geographically separated transmission points. Generally, multiple transmission points refer to base stations of different cells, or a base station of a cell and multiple RRHs (Remote Radio Head, remote radio head) controlled by it. Coordinated multi-point transmission technology can be divided into downlink cooperativ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/06
CPCH04L5/0091H04L1/0026H04L5/0035H04W24/10H04L1/06H04L5/0048H04B7/0626H04L1/0028
Inventor 倪浩高秋彬张然然彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD
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