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Communication system

A communication system, a technology of channel state information, applied in the fields of base stations and user equipment, transmission of channel state information, and resource allocation methods, can solve the problems of increasing UCI length, increasing the scheduling restrictions on data transmission by base stations, and failing to ensure correct reception by base stations, etc. , to achieve the effect of reducing scheduling restrictions, improving the probability of correct reception, and flexible resource allocation

Inactive Publication Date: 2016-06-29
FUJITSU LTD
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AI Technical Summary

Problems solved by technology

[0009] However, in the LTE-A system, due to the increase in the number of component carriers (CC), the length of the uplink control information UCI will also increase.
If the base station allocates up to 4 RBs for the user equipment UE, the resources allocated by the base station to the user equipment UE to send the uplink control information UCI including aperiodic channel state information CSI may be insufficient, so that it cannot be guaranteed that the base station can correctly receive the uplink control information UCI, Increased scheduling constraints on data transmission by the base station; and so far there is no solution to the above problems

Method used

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Embodiment Construction

[0051] Various embodiments of the present invention will be described below in conjunction with the accompanying drawings. These embodiments are illustrative only, and do not limit the present invention. In order to enable those skilled in the art to easily understand the principle and implementation of the present invention, the implementation of the present invention is described by taking the enhanced long-term evolution (LTE-A: LongTermEvaluationAdvanced) system under 10MHz broadband as an example, but it can be understood that, The present invention is not limited to the above system, and is applicable to other systems involving multi-carrier aperiodic channel state information transmission.

[0052] figure 1 It is a flow chart of the resource allocation method in Embodiment 1 of the present invention. Such as figure 1 As shown, the method includes:

[0053] Step 101, the base station determines that the user equipment is required to report the aperiodic channel state...

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Abstract

The invention relates to a communication system. The communication system comprises a base station, wherein the base station determines non-periodic channel state information of relevant downlink component carriers reported by user equipment; and the base station distributes a corresponding resource to the user equipment according to the quantity of the relevant downlink component carriers. The base station distributes the corresponding resource to the user equipment according to the quantity of the downlink component carriers, so that the resource is flexible to distribute, and the transmission of the multicarrier uplink control information is supported.

Description

[0001] This application is a divisional application of an invention patent application with an application date of December 22, 2010, an application number of 201080070794.9, and an invention title of "Resource Allocation Method, Channel State Information Transmission Method, Base Station and User Equipment". technical field [0002] The present invention relates to the field of wireless communication, in particular to a resource allocation method, a transmission method of channel state information, a base station and user equipment. Background technique [0003] In the long-term evolution system (LTE: Long-termEvolutionSystem), the user equipment (UE: UserEquipment) obtains the downlink channel state information (CSI: ChannelStateInformation) by measuring the downlink reference signal, and reports to the base station through the uplink The channel state information CSI includes downlink channel quality indicator (CQI: ChannelQualityIndicator), and for some downlink transmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/16H04L1/00
CPCH04L1/0027H04L1/1671H04L5/001H04L5/0057
Inventor 王轶周华吴建明
Owner FUJITSU LTD
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