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Channel state information reporting indication method, reporting method, service station and terminal

A technology for channel state information and service sites, applied in wireless communication, network traffic/resource management, digital transmission systems, etc., can solve the problems of reducing reporting accuracy, affecting eNB scheduling, etc., and achieve the effect of improving reporting accuracy

Active Publication Date: 2016-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will reduce the reporting accuracy and affect the eNB scheduling

Method used

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  • Channel state information reporting indication method, reporting method, service station and terminal
  • Channel state information reporting indication method, reporting method, service station and terminal
  • Channel state information reporting indication method, reporting method, service station and terminal

Examples

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Embodiment 1

[0042] The first embodiment of the present invention proposes an indication method for reporting channel state information, the flow of which is as follows Figure 4 shown, including:

[0043] Step 101, grouping multiple component carriers to obtain at least one group of component carriers;

[0044] Step 102: Allocating at least one uplink subframe corresponding to each group of component carriers for each group of component carriers; indicating to the terminal the at least one uplink subframe corresponding to each group of component carriers.

[0045] In the embodiment of the present invention, the embodiment of the present invention provides a service station, by grouping the component carriers in the carrier aggregation, so that the PUCCH in one CC can be realized as much as possible in the case of periodic reporting CSI reporting of multiple CCs is performed on the resource to improve reporting accuracy. At least one uplink subframe corresponding to each group of compone...

Embodiment 2

[0047] In step 101, CCs are grouped and a limited uplink subframe is allocated to each group, so that all CCs in each group transmit CSI through the uplink subframe. In order to further improve the reporting efficiency, this step 201 can be as follows Figure 5 Specifically shown are:

[0048] Step 2011: Determine the number of uplink subframes included in the reporting period Np according to the configuration of the configuration frame and the reporting period Np of the CC. For example: if image 3 In the configuration table shown, when configuration 0 is adopted, and the reporting period Np of the component carrier CC in carrier aggregation is 10 ms, then the reporting period Np includes 3 uplink subframes.

[0049] Step 2012, group the component carriers; each group includes at least one component carrier; the number of groups is not greater than the number of uplink subframes in the reporting period of each CC, and the number of groups is less than the maximum of the rep...

Embodiment 3

[0072] The third embodiment of the present invention proposes a method for reporting channel state information by applying the indication method for reporting channel state information in the aforementioned first and second embodiments, the process of which is as follows Image 6 shown, including:

[0073] Step 301: Obtain an indication from a serving site, and obtain at least one group of component carriers and at least one uplink subframe corresponding to each group of component carriers according to the indication;

[0074] Step 302: Report channel state information of each group of component carriers on at least one uplink subframe corresponding to each group of component carriers.

[0075] Wherein, the above-mentioned steps 301-302 can be applied to the UE side, so as to cooperate with the indication method on the base station side as in the first and second embodiments to obtain an indication, so as to report CSI. In this way, by grouping CCs and selecting different sub...

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Abstract

An indication method for reporting channel state information, a method for reporting channel state information, a service station point and a terminal are provided by the present invention, and belong to communication technical field. The service station point of the present invention embodiment includes a grouping module, a scheduling module, a distribution module; the indication method includes the following steps: grouping several component carriers, and obtaining at least one group of component carrier; distributing at least one uplink sub-frame corresponding to each group of component carrier for each group of component carrier respectively; indicating the at least one uplink sub-frame corresponding to each group of component carrier to the terminal. The terminal includes: a configuration module, a report module; the report method includes the following steps: obtaining an indication from a service station point, and acquiring at least one group of component carrier, and at least one uplink sub-frame corresponding to each group of component carrier according to the indication; reporting channel state information of each group of component carrier at the at least one uplink sub-frame corresponding to each group of component carrier. The embodiments of the present invention can be applied to Time Division Duplexing (TDD) system.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a channel state information reporting and indication method, a reporting method, a service station and a terminal. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) technology is an evolution of 3G, which improves and enhances the air access technology of 3G. LTE-A (LTE-Advance, evolution of LTE) is a further enhancement of LTE technology and has higher bandwidth requirements. In order to meet the requirements of LTE-A, the LTE-A system has introduced a carrier aggregation (ComponentAggregation, CA) technology. Carrier aggregation is to aggregate multiple component carriers (Component Carriers, CCs) into a carrier with a larger bandwidth to support high-speed data transmission rates. [0003] In an LTE-A system, UE (UserEquipment, user equipment) needs to feed back some CSI (ChannelStateInformation, channel state information) to the system; whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W72/04H04W72/12
CPCH04W28/20H04W24/10
Inventor 张兴炜
Owner HUAWEI TECH CO LTD
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