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Resource allocation method and device for control channel information

A technology for controlling channels and control information, applied in wireless communication, electrical components, etc., to achieve the effect of dynamic change, enhanced scheduling flexibility, and increased blind detection space

Active Publication Date: 2018-03-23
江苏慧煦电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In view of this, the main purpose of the present invention is to provide a resource configuration method and device for a control channel, which is used to solve the problem of configuration and transmission of the enhanced physical downlink control channel ePDCCH

Method used

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  • Resource allocation method and device for control channel information
  • Resource allocation method and device for control channel information
  • Resource allocation method and device for control channel information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The network side adds N bits to the downlink control information DCI to trigger whether the receiving side needs to blindly detect tPDCCH in the PDCCH region or blindly detect ePDCCH in the PDSCH region in the next subframe. Specific methods such as figure 1 Shown:

[0046] Step 101: After the receiving side successfully accesses the network, the network side decides whether to send tPDCCH in the PDCCH region or send ePDCCH in the PDSCH region according to the selection information of the downlink control information DCI;

[0047] When the receiving side accesses the network, it obtains system broadcast scheduling information and the like in the PDCCH area. After the receiving side successfully accesses the network, the network side can decide to send DCI (tPDCCH) in the PDCCH area or send DCI in the PDSCH region according to the DCI selection information such as the environment of the receiving side, the channel condition of the receiving side, and the load of the sys...

Embodiment 2

[0051] The network side adds 1 bit to the downlink control information DCI to indicate whether the receiving side needs to blindly detect DCI in the PDCCH region or in the PDSCH region in the next subframe. When the receiving side accesses the network, consider obtaining system broadcast scheduling information in the PDCCH area. After the receiving side successfully accesses the network, the network side can decide to send DCI (tPDCCH) in the PDCCH area or send DCI in the PDSCH region according to the DCI selection information such as the environment of the receiving side, the channel condition of the receiving side, and the load of the system's downlink control channel. Regional transmission DCI (ePDCCH).

[0052] The network side may trigger ePDCCH transmission in subframes after the nth subframe in the nth subframe according to the DCI selection information. The receiving side performs blind detection in the nth subframe or receives the trigger information sent by the netw...

Embodiment 3

[0054] The network side triggers the receiving side to adopt ePDCCH blind detection or receive downlink control information by reusing the downlink control information DCI, such as DCI Format 1C.

[0055] When the receiving side accesses the network, consider obtaining system broadcast scheduling information in the PDCCH area. After the receiving side successfully accesses the network, the network side can decide to send DCI (tPDCCH) in the PDCCH area or send DCI in the PDSCH region according to the DCI selection information such as the environment of the receiving side, the channel condition of the receiving side, and the load of the system's downlink control channel. Regional transmission DCI (ePDCCH).

[0056] The network side may trigger ePDCCH transmission in subframes after the nth subframe in the nth subframe according to the DCI selection information. The receiving side performs blind detection in the nth subframe or receives the trigger information sent by the networ...

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Abstract

The invention discloses a control channel resource configuration method and device, which are used to solve the problem of configuration and transmission of the enhanced downlink control channel ePDCCH. The network side adopts the aperiodic trigger method to trigger the receiving side to perform blind detection in the physical downlink control channel PDCCH area or to receive the traditional physical downlink control channel tPDCCH, or to blindly detect in the physical downlink shared channel PDSCH area by adding N bits in the downlink control information Or receive the enhanced physical downlink control channel ePDCCH; and / or the network side uses an aperiodic trigger to indicate the time domain and / or frequency domain position range of the ePDCCH in the PDSCH region that needs to be blindly detected by the receiving side. The present invention enables ePDCCH to obtain sufficient frequency diversity gain and scheduling gain, and does not obviously increase the complexity of blind detection when increasing the ePDCCH blind detection space, and the ePDCCH blind detection space can be dynamically changed, thereby enhancing scheduling flexibility.

Description

technical field [0001] The present invention relates to a long term evolution advanced system (Long Term Evolution Advanced system, LTE-Advanced), in particular to a resource allocation method and device for control channel information in LTE-Advanced. Background technique [0002] In LTE Release8 / 9, in order to measure the quality of the channel and demodulate the blind detection or received data symbols, CRS (Common Reference Signal, common reference signal) is designed, and UE (User Equipment, user equipment) can perform CRS through CRS Channel measurement, so as to determine the UE to perform cell reselection and handover to the target cell, and measure the channel quality in the UE connection state. When the interference level is high, the physical layer can be disconnected through high-level related wireless link connection failure signaling Open the connection. In LTE10, in order to further improve the average spectrum utilization rate of the cell, the spectrum utili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
Inventor 郭森宝孙云锋张峻峰
Owner 江苏慧煦电子科技有限公司
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