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Physical downlink control channel quality prediction method and device for long term evolution system

A technology of physical downlink control and long-term evolution system, applied in the field of communication, can solve the problems of not giving control channel quality prediction method, not being able to control channel particle resources and power allocation algorithm to provide positioning basis, etc.

Active Publication Date: 2016-08-03
ZTE CORP
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  • Claims
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Problems solved by technology

[0006] However, in the current prior art, for the channel quality prediction of PDCCH, an accurate and efficient control channel quality prediction method is not given in the relevant protocols, so that the control channel particle resources of the base station (eNodeB) and Power allocation algorithm provides fast and accurate positioning basis

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  • Physical downlink control channel quality prediction method and device for long term evolution system
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  • Physical downlink control channel quality prediction method and device for long term evolution system

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Embodiment Construction

[0034] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.

[0035] In the prior art, the RSRP measurement is based on the antenna port 0 (AntennaPort0, referred to as AP0) used by the LTE multiple antenna technology (MultipleInputMultipleOutput, referred to as MIMO), or all reference signals on AP0 and AP1 are used as the measurement source set. Within the measurement bandwidth specified by the protocol, which resource element (ResourceElement, referred to as RE) reference signal (CellReferenceSignal, referred to as CellRS) is selected as the RSRP measurement point is determined by the UE itself.

[0036] figure 1 It is a schematic diagram of the neighboring cell interference pattern of the control channel according to the prior art, such as figure...

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Abstract

The invention discloses a method and device for predicting the quality of a physical downlink control channel in a long-term evolution system. The method includes: determining a target user equipment (UE) that needs to perform physical downlink control channel (PDCCH) quality prediction, and receiving reporting information of the target UE; determining a prediction indicator of the target UE according to the reporting information, wherein the prediction indicator is control Channel Signal to Interference and Noise Ratio (SINR) or Control Channel Equivalent Receive Level (RPPDCCH); determine the PDCCH quality of the target UE according to SINR or RPPDCCH. Through the present invention, more accurate and efficient control channel quality prediction can be provided for LTE users without increasing measurement and signaling, thereby achieving the control channel element (CCE) resource and power allocation algorithm for the base station (eNodeB). Provide a relatively fast and accurate positioning basis.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and device for predicting the quality of a physical downlink control channel of a long-term evolution system. Background technique [0002] Physical DownlinkControlChanel (PDCCH) is a third-generation partnership project (ThirdGenerationPartnershipProject, abbreviated as 3GPP) Long Term Evolution (abbreviated as LTE) LTE and Advanced Long Term Evolution (LongTermEvolution-Advanced, abbreviated as LTE-A) An important physical channel in the standard. The downlink control signaling is carried by the PDCCH and is located on the first N Orthogonal Frequency Division Multiplexing (OFDM for short) symbols of each downlink subframe, where N is less than or equal to 4. [0003] Downlink control signaling includes the following two parts: 1. Downlink Transport Format (DownlinkTransportFormat, DTF for short), Downlink Shared Channel (DownlinkSharedChannel, DL-SCH for short), the ph...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04W72/04
CPCH04W24/08H04W24/10H04B17/373H04B17/327H04W84/042
Inventor 杨扬
Owner ZTE CORP
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