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Terminal

A technology for terminals and synchronization signals, applied in wireless communication, access restriction, synchronization devices, etc., and can solve the problems of increased phase noise propagation loss, etc.

Pending Publication Date: 2022-02-18
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At such a very high carrier frequency, the increase in phase noise and propagation loss becomes a problem
In addition, it becomes more sensitive to the peak-to-average power ratio (PAPR) and nonlinearity of the power amplifier

Method used

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Embodiment Construction

[0043] Embodiments will be described below with reference to the drawings. In addition, the same or similar symbols are assigned to the same functions and structures, and descriptions thereof are appropriately omitted.

[0044] (1) The overall schematic structure of the wireless communication system

[0045] figure 1 It is an overall schematic configuration diagram of the wireless communication system 10 according to this embodiment. The wireless communication system 10 is a wireless communication system based on 5G New Radio (NR), and includes a Next Generation-Radio Access Network (Next Generation-Radio Access Network) 20 (hereinafter referred to as NG-RAN20) and a terminal 200 (hereinafter referred to as UE200).

[0046] NG-RAN 20 includes radio base station 100 (hereinafter referred to as gNB 100 ). In addition, the specific structure of the wireless communication system 10 including the number of gNBs and UEs is not limited to figure 1 Example shown.

[0047] The NG...

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Abstract

A terminal receives, in a different frequency band which is different from a frequency band including one or a plurality of frequency ranges, a synchronization signal block (SSB), and determines, on the basis of the synchronization signal block, a transmission opportunity of a preamble through a random access channel. The terminal receives a synchronization signal block an index range of which is expanded, and when the index of the synchronization signal block is assumed to be i and the number of synchronization signal blocks is assumed to be M, determines, on the basis of i mod M, the transmission opportunity of the preamble through the random access channel.

Description

technical field [0001] The present invention relates to a terminal performing wireless communication, and more particularly, to a terminal receiving a Synchronization Signal Block (SSB). Background technique [0002] The 3rd Generation Partnership Project (3GPP) standardized Long Term Evolution (LTE) and promoted LTE-Advanced (hereinafter, including LTE-Advanced) for the purpose of further speeding up LTE. In addition, it also promotes the standardization of the fifth generation mobile communication system (5th generation mobile communication system, also known as 5G, New Radio (new air interface, NR) or Next Generation (next generation, NG)) standardization. [0003] In Release 15 and Release 16 (NR) of 3GPP, operations in bands including FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz) are standardized. In addition, in the specifications after version 16, the operation in the band exceeding 52.6 GHz has also been studied (Non-Patent Document 1). The target fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00H04W72/04H04W48/10H04W74/08
CPCH04B7/06968H04W56/001H04W74/0833H04W48/10H04W56/00H04W74/0836
Inventor 原田浩树永田聪王静侯晓林
Owner NTT DOCOMO INC