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Information configuration and feedback method in multicarrier system, system thereof and equipment thereof

A technology for multi-carrier systems, information configuration, used in wireless communications, error prevention/detection using return channels, electrical components, etc.

Active Publication Date: 2013-11-27
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0049] The embodiment of the present invention provides an information configuration and storage method, system and device in a multi-carrier system, which are used to solve the problem that terminals in a multi-carrier system cannot know the Problems of Time Resource Information for Aperiodic Channel Quality Information Feedback

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  • Information configuration and feedback method in multicarrier system, system thereof and equipment thereof
  • Information configuration and feedback method in multicarrier system, system thereof and equipment thereof
  • Information configuration and feedback method in multicarrier system, system thereof and equipment thereof

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Embodiment Construction

[0089] In order to realize aperiodic feedback of channel quality information (CSI) in a multi-carrier system, an embodiment of the present invention provides an information configuration and storage method in a multi-carrier system. The information of the frame offset position is configured to the terminal, and when performing aperiodic CSI feedback, the terminal determines which downlink component carriers' CSI to feed back according to the information configured by the base station, and performs CSI feedback according to the determination result.

[0090] see Figure 5 The information configuration and storage method in the multi-carrier system provided by the embodiment of the present invention specifically includes the following steps:

[0091] Step 50: the base station determines the downlink component carrier for which the terminal performs aperiodic CSI feedback;

[0092] Step 51: For each determined downlink component carrier, the base station configures and feeds bac...

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Abstract

The invention, which relates to the wireless communication field, discloses an information configuration and feedback method in a multicarrier system, system thereof and equipment thereof. A problem that how a terminal can obtain time resource information that can be used for feedback of nonperiodic channel quality information is solved. According to the invention, a base station configures a feedback subframe period and a subframe shift position to a terminal; the terminal detects a DCi signaling of downlink control indication at a downlink subframe and determines an uplink subframe of DCI signaling scheduling; moreover, with regard to all downlink member carrier waves on which polymerization is carried out, according to the feedback subframe period and the subframe shift position that are configured by the base station to the downlink member carrier waves, it is determined whether the uplink subframe is at the subframe shift position in the feedback subframe period; if not, a CSI of the downlink member carrier wave is feedbacked to the base station. According to the invention, in a multicarrier system, problems that how a terminal can obtain time resource information that can be used for feedback of nonperiodic channel quality information and how CSI feedback can be carried out are solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an information configuration and feedback method, system and equipment in a multi-carrier system. Background technique [0002] In Long Term Evolution Version 8 (LTE R8), the system only supports the transmission of a single carrier, so the terminal (UE) only measures the channel quality of a single downlink carrier and feeds back the measurement results, including rank (RI) information, channel quality Indication (CQI) information, Precoding Matrix Indication (PMI) information, etc. The specific feedback may use a physical uplink control channel (PUCCH) for periodic feedback, or use a physical uplink shared channel (PUSCH) for aperiodic feedback. [0003] In LTE R8, there are many different feedback modes using PUSCH for aperiodic channel information feedback. The specific CQI / PMI feedback mode definitions are shown in the following table: [0004] [0005] Whe...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04W72/04
Inventor 潘学明沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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