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Method and equipment for reporting and determining sub-band feedback selected by terminal equipment

A terminal device, a technology for determining a method, applied in the field of communication

Active Publication Date: 2012-11-28
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The existing periodic and aperiodic terminal equipment selection subband methods are designed for the transmission scheme of a single transmission point, and no mechanism is used to ensure that multiple transmission points select the same subband

Method used

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  • Method and equipment for reporting and determining sub-band feedback selected by terminal equipment
  • Method and equipment for reporting and determining sub-band feedback selected by terminal equipment
  • Method and equipment for reporting and determining sub-band feedback selected by terminal equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Embodiment 1 of the present invention provides a method for reporting the subband selection feedback of the terminal equipment (processing for the terminal equipment) and determining the subband selection feedback for the terminal equipment (processing for the base station equipment) based on coordinated multi-point transmission, such as figure 1 As shown, the method includes the following steps:

[0052] In step 101, the base station device configures one or more channel state information processes for the terminal device, and configures a subband selection indication for the terminal device.

[0053] In the embodiment of the present invention, the base station device needs to configure one or more channel state information processes for the terminal device, and in addition to configuring one reporting mode (that is, the channel state information reporting mode) corresponding to each channel state information process, the base station device also A subband selection in...

Embodiment 2

[0088]Embodiment 2 of the present invention provides a method for reporting and determining subband feedback for terminal equipment selection based on coordinated multi-point transmission. It is assumed that there are three transmission points TP1, TP2, and TP3 in the measurement set of the terminal equipment, and the base station equipment is configured for the terminal equipment. The channel state information process and the index of each channel state information process, downlink reference signal resources for signal and interference measurement, reporting mode, subband selection group bitmap and other information are shown in Table 3.

[0089] Table 3. Channel state information process configuration of terminal equipment 1

[0090]

[0091]

[0092] The base station equipment configures a subband selection group for the terminal equipment, and the configured bitmap of the subband selection group is 0111, the lowest bit in the bitmap corresponds to channel state infor...

Embodiment 3

[0096] Embodiment 3 of the present invention provides a method for reporting and determining subband feedback for terminal equipment selection based on coordinated multi-point transmission. It is assumed that there are three transmission points TP1, TP2, and TP3 in the measurement set of the terminal equipment, and the base station equipment is configured for the terminal equipment. The channel state information process and the index of each channel state information process, downlink reference signal resources for signal and interference measurement, reporting mode, subband selection grouping bitmap and other information are shown in Table 4.

[0097] Table 4. Channel state information process configuration 2 of terminal equipment

[0098]

[0099]

[0100] The subband selection reference process configured by the base station for the channel state information process 1 of the terminal device is channel state information process 1, and the subband selection reference pro...

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Abstract

The invention discloses a method and equipment for reporting and determining sub-band feedback selected by terminal equipment. The method comprises the following steps: base station equipment configures one or more channel state information progresses for the terminal equipment and configures a sub-band selection indication for the terminal equipment; the base station equipment transmits the sub-band selection indication to the terminal equipment; the base station equipment receives the feedback information reported by the terminal equipment and determines that the terminal equipment selects the feedback information of the sub-band feedback; the terminal equipment receives the sub-band selection indication which is configured for the terminal equipment by the base station equipment; and the terminal equipment selects the sub-bands by utilizing the sub-band selection indication and reports the feedback information by utilizing the selected sub-bands. In the embodiment of the invention, a sub-band selection dependence relationship of a plurality of channel state information progresses is configured, so that a plurality of channel state information progresses with different signal hypothesis and / or different interference hypothesis are fed back based on the same sub-band selection.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for reporting and determining subband feedback for terminal equipment selection. Background technique [0002] In the LTE-A (Long Term Evolution-Advance, Long Term Evolution Enhancement) system, in order to reduce the adjacent cell interference of cell edge terminal devices and improve the experience of cell edge terminal Point transmission technology is the collaboration between multiple TPs (Transmission Points) that are geographically separated, and multiple transmission points refer to base stations in different cells or a base station in a cell and multiple RRHs (Remote Radio Stations) controlled by them. Head, RF remote). [0003] Coordinated multi-point transmission technology can be divided into downlink coordinated multi-point transmission and uplink joint reception, and downlink coordinated multi-point transmission includes CS / CB (Coo...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/16
Inventor 倪浩高秋彬张然然彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD
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