Communication system

A communication system and channel state information technology, applied in the field of wireless communication, can solve problems such as inability to ensure correct reception by base stations, increase scheduling restrictions on data transmission by base stations, increase UCI length, etc., to achieve flexible resource allocation, improve the probability of correct reception, The effect of reducing scheduling constraints

Inactive Publication Date: 2016-08-10
FUJITSU LTD
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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 drawings. These embodiments are only exemplary, and are not limitations to the present invention. In order to enable those skilled in the art to easily understand the principles and implementations of the present invention, the implementation of the present invention takes an enhanced long-term evolution (LTE-A: Long Term Evaluation Advanced) system under 10 MHz broadband as an example for description, but it can It is understood that the present invention is not limited to the above-mentioned system, and is applicable to other systems involving aperiodic channel state information transmission of multiple carriers.

[0052] figure 1 It is a flowchart 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 needs to report the aperiodic channel st...

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Abstract

Disclosed is a communication system. The system is constructed in such a way that a base station determines that user equipment needs to report aperiodic channel state information of correlation downlink component carrier waves, and the base station distributes corresponding resources to the user equipment according to the quantity of the correlation downlink component carrier waves. According to the invention, the base station distributes a corresponding resource quantity to the user equipment according to the quantity of the downlink component carrier waves, the resource distribution is flexible, and transmission of uplink control information of multiple carrier waves is supported.

Description

[0001] This application is a divisional application of an invention patent application whose application date is December 22, 2010, application number is 201080070794.9, and the invention title is "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 method for resource allocation, a method for transmitting channel state information, a base station and user equipment. Background technique [0003] In the Long-term Evolution System (LTE: Long-term Evolution System), the user equipment (UE: UserEquipment) obtains downlink channel state information (CSI: Channel State Information) by measuring the downlink reference signal, and through the uplink Report to the base station that the channel state information CSI includes downlink channel quality indicator (CQI: Channel Quality Indicator), and for certain downlink trans...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04L1/00H04L5/00
CPCH04L1/0026H04L5/0057H04W72/23
Inventor 王轶周华吴建明
Owner FUJITSU LTD
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