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Decoupling of synchronization raster and channel raster

A technology for synchronizing channels and synchronizing signals, which is applied in the direction of synchronization devices, transmission path sub-channel allocation, signaling allocation, etc., and can solve the problems of insufficient efficiency and confusion of channel raster frequency scanning

Active Publication Date: 2019-06-14
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this frequency scanning process has some disadvantages in NR networks
For example, since NR is expected to be deployed in a wide frequency band, frequency scanning using this channel raster is not efficient enough
Also, there may be confusion between NR / LTE networks since both NR and LTE employ OFDM-based waveforms in the downlink
Also, "dissimilar" waveform aliasing can occur when some massive Machine Type Communication (mMTC) waveforms or some on-demand signals are present in this band

Method used

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  • Decoupling of synchronization raster and channel raster
  • Decoupling of synchronization raster and channel raster
  • Decoupling of synchronization raster and channel raster

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Embodiment Construction

[0033] The detailed description, given below in conjunction with the accompanying drawings, is intended to describe various configurations only and is not intended to represent the only configurations in which the concepts described in this application may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. It will be apparent, however, to one of ordinary skill in the art that these concepts may be practiced without these specific details. In some instances, well-known components are shown in block diagram form in order to avoid obscuring the concepts.

[0034] The present disclosure provides example methods and apparatus for synchronizing channel rasters and decoupling of channel rasters for wireless communications. For example, during an initial acquisition process at a UE in an LTE network, the UE initially performs a frequency scan by scanning through configured frequency bands in sear...

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Abstract

A method and apparatus for decoupling of a synchronization ("sync") channel raster and a channel raster in a wireless communication system is disclosed. For example, the method and apparatus include determining, at a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a physical broadcast channel (PBCH) in any frequency of the set of frequencies of the synchronization channel raster to at least one UE. For example, the method and apparatus further include determining, at a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a PBCH in a frequency of the setof frequencies of the synchronization channel raster closest to a center frequency of a bandwidth to at least one UE.

Description

[0001] Cross References to Related Applications [0002] This patent application claims U.S. Nonprovisional Application No. 15 / 802,181, filed November 2, 2017, entitled "DECOUPLING OFSYNCHRONIZATION RASTER AND CHANNEL RASTER," and filed November 4, 2016, entitled "DECOUPLING OF Priority to U.S. Provisional Patent Application No. 62 / 417,993, "SYNCHRONIZATION RASTER AND CHANNELRASTER," which has been assigned to the assignee of the present application, is hereby expressly incorporated by reference. Background technique [0003] In general, aspects of the present disclosure relate to communication systems, and in particular, to synchronization ("sync") channel rasters and decoupling of channel rasters in wireless communication systems. [0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging and broadcast. Typical wireless communication systems may employ multiple access techniques capable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0007H04L5/001H04L5/0051H04L5/0053H04L5/0057H04L5/0055H04L5/0048H04W56/001H04W72/23
Inventor H·李陈万士H·理徐浩
Owner QUALCOMM INC