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1. US20200037293 - Quasi-colocation of system access and control signals

Office
United States of America
Application Number 16496696
Application Date 23.03.2018
Publication Number 20200037293
Publication Date 30.01.2020
Grant Number 11089584
Grant Date 10.08.2021
Publication Kind B2
IPC
H04W 72/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04Wireless resource allocation
H04W 48/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction; Network selection; Access point selection
08Access restriction or access information delivery, e.g. discovery data delivery
CPC
H04W 48/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction
08Access restriction or access information delivery, e.g. discovery data delivery
H04W 72/042
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
0406involving control information exchange between nodes
042in downlink direction of a wireless link, i.e. towards terminal
Applicants Telefonaktiebolaget LM Ericsson (publ)
Inventors Andres Reial
Pål Frenger
Henrik Sahlin
Agents Baker Botts, LLP
Title
(EN) Quasi-colocation of system access and control signals
Abstract
(EN)

According to some embodiments, a method for use in a network node comprises: determining a quasi-colocation (QCL) status between a reference signal (e.g., initial access signal such as system synchronization block (SSB), or a tracking reference signal (TRS)) and a control signal (e.g., a paging signal, a random access response (RAR), or a channel such as physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH)); and signaling the QCL status to a wireless device. A method for use in a wireless device may comprise: receiving a QCL status between a reference signal and a control signal; receiving the reference signal; estimating one or more signal parameters based on the received reference signal; and when the reference signal and the control signal are QCL, receiving the control signal using the estimated signal parameters to optimize reception of the control signal.

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