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Indication configuration method and base station for CSI feedback signals

一种信令、指示的技术，应用在CSI反馈信令的指示配置方法及基站领域，达到减少开销和测量复杂度、精确链路自适应调整和数据发送的效果

Active Publication Date: 2013-11-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a feedback signaling indication configuration method and a base station to at least solve the above-mentioned problem of how to configure the terminal side to feed back the CSI required by the base station side

Method used

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  • Indication configuration method and base station for CSI feedback signals
  • Indication configuration method and base station for CSI feedback signals
  • Indication configuration method and base station for CSI feedback signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In this embodiment, assuming that UE1 is a user of R11 or a more advanced version, the base station notifies UE1 of a set of CSI-RS resources for measuring CSI through UE-specific high-layer signaling. When the UE-specific high-level signaling notifies UE1 of a set of CSI-RS resources for measuring CSI, the base station side does not need to configure corresponding high-level signaling for the terminal side. The candidate set is a set of CSI-RS resources configured on the base station side for measuring CSI. In addition, the base station side triggers signaling bit 1 bit through DCI Format 0 or DCI format 4 or random access response or feedback in uplink scheduling grant signaling , to trigger whether UE1 feeds back the CSI of the corresponding CSI-RS resource, where 0 indicates that the CSI of a CSI-RS resource configured by the upper layer is not triggered, and 1 indicates that the CSI of a CSI-RS resource configured by the upper layer is triggered.

Embodiment 2

[0067] In this embodiment, assuming that UE1 is a user of R11 or a more advanced version, the base station notifies UE1 of a set of CSI-RS resources for measuring CSI through UE-specific high-layer signaling. When the UE-specific high-level signaling notifies UE1 of a set of CSI-RS resources for measuring CSI, the base station side does not need to configure corresponding high-level signaling for the terminal side. The candidate set is a set of CSI-RS resources configured on the base station side for measuring CSI. In addition, the base station triggers signaling bit 2 bits through DCI Format 0 or DCI format 4 or random access response or feedback in uplink scheduling grant signaling , to trigger whether UE1 feeds back the CSI of the corresponding CSI-RS resource, where 00 means not triggering the CSI of a CSI-RS resource configured by the high layer, and 01 means triggering the feedback of a CSI-RS resource configured by the high layer and the first IMR combined calculation C...

Embodiment 3

[0069] In this embodiment, assuming that UE1 is a user of R11 or a more advanced version, the base station notifies UE1 of a set of CSI-RS resources for measuring CSI through UE-specific high-layer signaling. When the UE-specific high-level signaling notifies UE1 of a set of CSI-RS resources for measuring CSI, the base station side does not need to configure corresponding high-level signaling for the terminal side. The candidate set is a set of CSI-RS resources configured on the base station side for measuring CSI. In addition, the base station side triggers signaling bit 1 bit through DCI Format 0 or DCI format 4 or random access response or feedback in uplink scheduling grant signaling , to trigger whether UE1 feeds back the CSI of the corresponding CSI-RS resource, where 0 means not to trigger the CSI of a CSI-RS resource configured by the upper layer, and 1 means to trigger the feedback of a CSI-RS resource configured by the higher layer and the Nth (N>0) Combine the CSI c...

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Abstract

Provided are a CSI feedback signaling instruction configuration method and base station, the method comprising: a base station side notifies a terminal side, via the first high layer signaling of a UE-Specific, a CSI-RS resource for measuring CSI, the CSI-RS resource comprising at least one of: the time frequency position of the CSI-RS resource in a subframe, the aerial port number configuration of the CSI-RS resource, the period of the CSI-RS resource and subframe offset, the sequence identifier of the CSI-RS resource, and the power control information of the CSI-RS resource; the base station side instructs the terminal side to feed back the CSI corresponding to the CSI-RS resource. In the present invention, the base station side flexibly configures the terminal side to feed back various kinds of CSI information, thus enabling the base station side to flexibly and dynamically acquire the CSI, and in turn realizing precise link self-adaption and data transmission, and reducing the uplink feedback overhead and measurement complexity of the terminal side.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a CSI feedback signaling indication configuration method and a base station. Background technique [0002] The Long Term Evolution (LTE for short) system has experienced several versions of R8 / 9 / 10, and then accurately researched R11 technology one after another. At present, some R8 products are gradually commercialized, and R9 and R10 are subject to further product planning. [0003] After going through the stages of R8 and R9, R10 added many new features on the basis of the first two, such as DMRS (Demodulation Reference Signal, demodulation reference signal), CSI-RS (Channel State Information Reference Signal, channel state information Reference signal) and other pilot characteristics, 8-antenna support and other transmission and feedback characteristics, etc., especially eICIC (ehanced Inter-Cell Interference Cancellin, inter-cell interference cancellation enha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L1/00
CPCH04B7/0626H04L5/0057H04L5/0048H04L5/0094H04B7/0647H04W24/08H04W72/21H04L5/0053H04W52/243H04W72/02H04W74/0833H04W88/02H04W88/08
Inventor 郭森宝李儒岳张峻峰
Owner ZTE CORP
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