Transmitting and receiving reference signals

A reference signal and sending reference technology, applied in the directions of pilot signal allocation, transmission path sub-channel allocation, digital transmission system, etc., can solve problems such as violation of single-carrier properties

Active Publication Date: 2018-06-08
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the delay in acquiring synchronization may be reduced since the first and second synchronization signals are mapped to different subcarriers, this violates the single-carrier property of the transmission, resulting in higher PAPR in the transmitter

Method used

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  • Transmitting and receiving reference signals
  • Transmitting and receiving reference signals
  • Transmitting and receiving reference signals

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Embodiment Construction

[0060] The inventive concepts will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concepts are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will The scope of the inventive concept fully conveys to those skilled in the art. Throughout the specification, like numerals refer to like elements. Any steps or features shown in dashed lines should be considered optional.

[0061] Figure 1a is a schematic diagram illustrating a communication network 100a to which embodiments presented herein may be applied. The communication network 100a comprises a radio access network node 120 . The radio access network node 120 includes a first network device 200 . The radio access network node...

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Abstract

There is provided mechanisms for transmitting reference signals. A method is performed by a first network device. The method comprises transmitting, in a single orthogonal frequency-division multiplexing (OFDM) symbol, a composite reference signal to a second network device. The composite reference signal is a time domain concatenation of at least a first reference signal and a last reference signal. The composite reference signal has a single cyclic prefix. The cyclic prefix is determined according to a last part of the single OFDM symbol. There is also provided mechanisms for receiving suchreference signals.

Description

technical field [0001] Embodiments presented herein relate to methods, network devices, computer programs and computer program products for transmitting reference signals. Embodiments presented herein further relate to methods, network devices, computer programs and computer program products for receiving reference signals. Background technique [0002] In communication networks, it can be a challenge to obtain good performance and capacity for a given communication protocol, its parameters, and the physical environment in which the communication network is deployed. [0003] For example, one parameter that provides good performance and capacity for a given communication protocol in a communication network is synchronization. [0004] For example, when a wireless device such as a user equipment (UE) is powered on, or when it moves between cells in a cellular wireless radio access sent by the radio access network node of the wireless radio access network). One purpose of t...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04L27/26
CPCH04L27/2607H04L27/2613H04L27/26132H04L5/0048
InventorH·萨林汪剑锋I·L·J·达席尔瓦
OwnerTELEFON AB LM ERICSSON (PUBL)