Enhanced random access procedure

A technology of random access and physical random access, which is used in connection management, transmission path sub-channel allocation, electrical components, etc.

Inactive Publication Date: 2018-12-21
MEDIATEK SINGAPORE PTE LTD SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Since base stations and mobile stations need to scan over a range of beam angles before they can detect each other, the reliance on directional delivery of synchronization and broadcast signals can delay base station detection during cell search operations for initial connection establishment or handover

Method used

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  • Enhanced random access procedure
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Examples

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Embodiment Construction

[0029] figure 1 It is a system schematic diagram of an exemplary wireless network 100 with HF connection according to an embodiment of the present invention. The wireless system 100 includes one or more fixed infrastructure units (base infrastructure units), where one or more fixed infrastructure units may form a network distributed over a geographical area. The above-mentioned basic unit may also be called an access point (AP), an access terminal, a base station, a Node-B (Node-B, NB), an eNB, a gNB, or other terms known in the art. Such as figure 1 Illustratively, base stations 101, 102, and 103 serve multiple mobile stations 104, 105, 106, and 107 in a service area (e.g., a cell or cell sector). In some systems, one or more base stations are coupled to the controller, thereby forming an access network coupled to one or more core networks. Base station 101 is a traditional base station used as a macro gNB, and base station 102 and base station 103 are HF base stations. The...

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Abstract

A transmitted reference signal in measured as received through receiver beams having associated receiver beam identities. The reference signal measurements are stored in association with identities oftransmitter beams over which the reference signal was transmitted and with the corresponding receiver beam identities to define respective beam link pair measurements. A beam link pair is selected that meets a criterion on the beam link pair measurements and a random access procedure is initiated by transmitting a preamble message over a transmitter beam of the selected beam link pair.

Description

[0001] Cross references to related applications [0002] This application claims the priority of the PCT patent application number PCT / CN2017 / 078079 filed on March 24, 2017, and the entire content is taken as a reference. Technical field [0003] The present disclosure generally relates to wireless communication, and specifically relates to a random access (RA) process in the fifth generation (5G) new radio (NR) access system with beamforming (the Fifth Generation, 5G). Background technique [0004] The amazing growth in demand for cellular data has stimulated interest in high frequency (HF) communication systems. One of the goals of 5G is to support a frequency range up to 100 GHz in the HF band, where the available spectrum of the HF band is 200 times that of traditional cellular systems. [0005] 5G radio access technology will become a key component of modern access networks. It will address the increase in high traffic growth and high bandwidth connection requirements. It will a...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W74/0833H04W74/006H04B7/0695H04B7/088H04W24/08H04W24/10H04L5/0051H04W74/02H04W76/11H04W76/27H04W72/046
Inventor 张园园陈滔
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE
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