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Subcarrier spacing selection for synchronization signals

A technology of subcarrier spacing and carrier spacing, which is applied in pilot signal allocation, modulated carrier system, wireless communication, etc., and can solve problems such as undesired and lack of information on synchronization signal transmission configuration.

Active Publication Date: 2019-06-04
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the case of NR techniques, efficient implementation of synchronization can be challenging
Specifically, given the aforementioned flexibility of the utilized OFDM scheme, a UE connected to a wireless communication network may lack information about the configuration actually applied for synchronization signal transmission, e.g., which subcarrier spacing is used for transmission of synchronization signals
On the other hand, it may be undesirable to send a synchronization signal with every possible subcarrier interval in terms of resource efficiency

Method used

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  • Subcarrier spacing selection for synchronization signals
  • Subcarrier spacing selection for synchronization signals
  • Subcarrier spacing selection for synchronization signals

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Embodiment Construction

[0048] In the following, exemplary embodiments of the present invention are described in more detail. It must be understood that the following description is given for the purpose of illustrating the principles of the invention only, and not in a restrictive sense. Rather, the scope of the present invention is defined only by the appended claims rather than by the exemplary embodiments described hereinafter.

[0049] The illustrated embodiments relate to enabling synchronization in a wireless communication network, in particular allowing synchronization of a wireless communication device (hereinafter also referred to as "UE") with one or more base stations in the wireless communication network. It is assumed that the synchronization will be performed based on the synchronization signal. Synchronization generally involves time alignment of processing in the UE with processing in the base station, eg, processing involving signal transmission and reception. For example, synchro...

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Abstract

A wireless communication device (100) identifies a set of multiple different subcarrier spacings which are supported for transmission of synchronization signals. From the set of different subcarrier spacings, the wireless communication device (100) selects a subset of one or more subcarrier spacings. Further, the wireless communication device (100) receives signals (10) from the wireless communication network. On the basis of the subcarrier spacings of the subset, the wireless communication device monitors the received signals (10) for synchronization signals.

Description

technical field [0001] The present invention relates to a method of enabling synchronization in a wireless communication network and a corresponding device and system. Background technique [0002] In wireless communication networks such as cellular networks based on LTE (Long Term Evolution) radio access technology specified by 3GPP (Third Generation Partnership Project), synchronization signals are used to enable wireless communication devices (also called user equipment or "user equipment" UE") with the base station of the wireless communication network (called eNB (evolved Node B). In LTE radio access technology, these synchronization signals are called PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal). In In LTE radio access technology, a synchronization signal is transmitted using OFDM (Orthogonal Frequency Division Multiplexing) with a subcarrier spacing of 15 kHz. [0003] For New Radio ("NR") technologies being developed by 3GPP, the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0007H04L5/0048H04L5/0053H04L5/0092H04L27/2646H04L27/2666H04L27/2678H04L27/26025H04L5/0094H04W24/08H04W36/0016H04W36/38
Inventor P·C·卡尔松R·荣B·帕利延多
Owner SONY CORP