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Transmission method of enhanced physical downlink control channel, network side device and terminal device

A technology of physical downlink control and network side equipment, which is applied in the field of communication and can solve problems such as the inability to flexibly select the transmission mode of EPDCCH

Active Publication Date: 2021-05-04
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a transmission method of an enhanced physical downlink control channel EPDCCH, a network side device and a terminal device, so as to solve the problem that a suitable EPDCCH transmission mode cannot be flexibly selected

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  • Transmission method of enhanced physical downlink control channel, network side device and terminal device
  • Transmission method of enhanced physical downlink control channel, network side device and terminal device
  • Transmission method of enhanced physical downlink control channel, network side device and terminal device

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[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] Such as figure 1 As shown, the first embodiment of the present invention proposes an EPDCCH transmission method, which is applied to network-side equipment in an LTE-A communication system, and the LTE-A communication system also includes terminal equipment. The network side device may be an eNB. The terminal device may be a UE such as a mobile phone, a smart phone, a notebook computer, or a computer. The method includes the following steps:

[0026] S100. Check whether a terminal device that needs to perform cross-carrier scheduling supports ...

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Abstract

The invention discloses a transmission method of an enhanced physical downlink control channel EPDCCH, network side equipment and terminal equipment, and belongs to the technical field of communication. The method includes: sending initial EPDCCH configuration information; receiving narrowband CQI information reported by the terminal equipment in real time; judging whether the channel environment of the terminal equipment reaches a preset threshold according to the CQI information; when the channel environment reaches the threshold, and the initial transmission mode is When distributed, change the EPDCCH transmission mode to centralized according to the dynamic EPDCCH mechanism; when the channel environment does not reach the threshold and the initial transmission mode is centralized, change the EPDCCH transmission mode to distributed according to the dynamic EPDCCH mechanism. Thus, the transmission mode of the EPDCCH can be dynamically adjusted according to the real-time channel state.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a transmission method of an enhanced physical downlink control channel, a network side device and a terminal device. Background technique [0002] In the LTE-A (Long-Term Evolution-Advanced, Advanced Long-Term Evolution) system, 3GPP (3rdGeneration Partnership Project, Third Generation Partnership Project) Release 11 introduced EPDCCH (Enhanced Physical Downlink Control Channel, enhanced physical downlink control channel) concept. The EPDCCH is mainly used to increase the capacity of the control channel; it is beneficial to the cross-carrier scheduling feature of carrier aggregation; it supports scheduling of control information in the frequency domain and ICIC (Inter-Cell Interference Coordination, cell interference coordination) processing. The EPDCCH uses PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) resources to send DCI (Downlink Control ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/54
CPCH04L5/0057H04W72/23H04W72/54
Inventor 孟杰
Owner ZTE CORP
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