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Method and apparatus for downlink transmission

A downlink and transmission scheduling technology, applied in the direction of transmission system, digital transmission system, multiple use of transmission path, etc., can solve the problem of not being able to find EPDCCH

Active Publication Date: 2018-08-24
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 apparatus for downlink transmission
  • Method and apparatus for downlink transmission
  • Method and apparatus 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 descriptions refer to preferred embodiments as examples only. It should be noted that based on the following description, alternative embodiments of the structure and method disclosed herein can be easily conceived, and these alternative embodiments can be used without departing from the principles of the disclosure claimed by the present invention.

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

[0039] Next, we will first refer to figure 2 To describe a flowchart of a method...

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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] The embodiments of the present disclosure relate to the field of wireless communication technology, and more particularly to a method and apparatus for downlink transmission. Background technique [0002] In the Rel-10 of Long Term Evolution Advanced (LTE-A) of the 3rd Generation Partnership Project (3GPP) and the future Rel-12, a new work item "New Carrier Type (NCT)" has been introduced to integrate Without restricting backward compatibility, improve spectrum efficiency, heterogeneous network (HetNet) support and energy saving. This means that either traditional channels such as cell-specific reference signal (CRS), physical broadcast channel (PBCH), and synchronization channel need to be removed on the newly designed carrier, or these traditional channels need to be redesigned to be compatible with the Rel-10 version Compared with the network, it achieves more efficient spectrum utilization without considering the experience of traditional user equipmen...

Claims

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Application Information

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