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Method and device for downlink transmission

A downlink and transmission scheduling technology, applied in transmission systems, digital transmission systems, multiple use of transmission paths, etc., can solve problems such as not being able to find EPDCCH

Active Publication Date: 2014-11-12
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no specific plans and details have been given about this at present
That is to say, in the prior art, it is still impossible to find specific solutions and operations on how to support EPDCCH enhancement for time division multiplexing and frequency division multiplexing of PMCH on NCT

Method used

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  • Method and device for downlink transmission
  • Method and device for downlink transmission
  • Method and device for downlink transmission

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Embodiment Construction

[0037] Hereinafter, various exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that these drawings and description relate to preferred embodiments as examples only. It should be noted that, from the ensuing description, alternative embodiments of the structures and methods disclosed herein are readily conceivable and may be employed without departing from the disclosed principles of the claimed invention.

[0038] It should be understood that these exemplary embodiments are given only to enable those skilled in the art to better understand and implement the present invention, but not to limit the scope of the present disclosure in any way. In addition, in the drawings, optional steps, modules, units, etc. are shown in broken line boxes for the purpose of illustration.

[0039] Next, we will first refer to figure 2 A flow chart of a method for downlink transmission according to an embodi...

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Abstract

The invention provides a method and device for downlink transmission. According to an embodiment, the method is based on time domain multiplexing. According to the method, a physical resource block (PRB) pair used for transmitting scheduling information of one set of user equipment is selected from predetermined PRB pairs capable of being used for transmitting the scheduling information in available PRB pairs, and the scheduling information is transmitted to the user equipment on predetermined subcarriers of first two orthogonal frequency division multiplexing symbols of the selected PRB pair. In addition, the invention further provides a technical scheme based on frequency domain multiplexing. According to the embodiment, the technical scheme based on time domain multiplexing and frequency domain multiplexing is provided, so PMCH information transmission on new types of carriers can be achieved in LTE-A, and meanwhile the influence on regulations of an RAN1 is limited.

Description

technical field [0001] Embodiments of the present disclosure relate to the technical field of wireless communication, and more particularly to methods and devices for downlink transmission. Background technique [0002] In Rel-10 of Long Term Evolution-Advanced (LTE-A) of the 3rd Generation Partnership Project (3GPP) and future Rel-12, a new work item "New Carrier Type (NCT)" has been introduced for Improves spectral efficiency, Heterogeneous Network (HetNet) support, and power savings without limiting backward compatibility. This means either legacy channels such as Cell Specific Reference Signal (CRS), Physical Broadcast Channel (PBCH), Synchronization Channel etc. need to be removed on the newly designed carrier, or these legacy channels need to be redesigned to be compatible with Rel-10 Compared with the network, it achieves more efficient spectrum utilization without considering the experience of traditional user equipment (UE). [0003] Currently in Radio Access Netw...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04L5/00
Inventor 蒋琦刘铮王栋耀韩锋
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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