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1. US20190141762 - Initial access and radio resource management for integrated access and backhaul (IAB) wireless networks

Office United States of America
Application Number 16238067
Application Date 02.01.2019
Publication Number 20190141762
Publication Date 09.05.2019
Grant Number 10687375
Grant Date 16.06.2020
Publication Kind B2
IPC
H04W 74/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled access, e.g. random access, ALOHA or CSMA
H04B 7/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
H04W 76/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
12Setup of transport tunnels
H04B 7/155
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
155Ground-based stations
H04W 8/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
H04W 56/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
56Synchronisation arrangements
CPC
H04B 7/15507
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
155Ground-based stations
15507Relay station based processing for cell extension or control of coverage area,
H04W 76/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
12Setup of transport tunnels
H04B 7/2606
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
2603Arrangements for wireless physical layer control
2606Arrangements for base station coverage control, e.g. by using relays in tunnels
H04W 8/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
005Discovery of network devices, e.g. terminals
H04W 56/001
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
56Synchronisation arrangements
001Synchronization between nodes
H04W 74/0833
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled ; or contention based; access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
0833using a random access procedure
Applicants AT&T Intellectual Property I, L.P.
Inventors Thomas David Novlan
Milap Majmundar
Arunabha Ghosh
Agents Amin, Turocy & Watson, LLP
Title
(EN) Initial access and radio resource management for integrated access and backhaul (IAB) wireless networks
Abstract
(EN)

Establishment of integrated links comprising integrated wireless backhaul communications links and access communications links is facilitated by transmitting multiplexed sync signals to enable synchronization between the relay transmission point devices, and using a random access channel procedure to complete the establishment. The integrated wireless backhaul communications links and access communications links can be maintained by measuring channel characteristics of the backhaul communications links using a measurement reference signal.