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Beam identification for multi-tci transmission

A beam-and-sign technology that is used in augmented reality advances, not phase, step by step improvement. It can solve the problems of increasing propagation loss and lack of robustness of mobile broadband applications

Active Publication Date: 2021-02-12
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mmW bands generally lack robustness for mobile broadband applications due to increased propagation loss and susceptibility to obstructions (e.g., hands, heads, bodies, plants, buildings, or other structures)

Method used

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  • Beam identification for multi-tci transmission
  • Beam identification for multi-tci transmission
  • Beam identification for multi-tci transmission

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Embodiment Construction

[0021] As mentioned above, one aspect of 5G NR communication technology includes the use of the high spectrum band above 24GHz, which may be referred to as mmW. The use of these frequency bands enables extremely high data rates and a significant increase in data processing capabilities. However, mmW frequency bands are susceptible to fast channel variations and suffer from severe free-space path loss and atmospheric absorption. Furthermore, mmW bands are highly susceptible to obstruction (eg, hand, head, body, plant, building penetration). In particular, at mmW frequencies, even small changes in the environment, such as head rotation, hand movement, or passing cars, may change the channel conditions between the base station and UE, and thus affect communication performance.

[0022] Current mmW 5G NR systems exploit the small wavelengths of mmW at higher frequencies to leverage massive multiple-input multiple-output (MIMO) antenna arrays to create highly directional beams tha...

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Abstract

Aspects of the present disclosure provide techniques to improve reliability and robustness for millimeter wave (mmW) systems in fifth generation (5G) wireless communications technology (also referredto as new radio (NR)). Specifically, the present disclosure provides techniques to allow the base station to group a plurality of mmW beams for communication with the user equipment (UE) such that theselected beam(s) for communication are independent and uncorrelated. The selection of beams ensure macro-diversity in that the joint blocking probability of the selected beam(s) may be minimized andthe susceptibility to blockage is reduced in comparison to the current systems.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Nonprovisional Application No. 16 / 456,949, filed June 28, 2019, entitled "BEAM IDENTIFICATION FORMULTI-TCI TRANSMISSION," and filed July 16, 2018, entitled "Beam Identification for Multi-TCI Transmission" U.S. Provisional Application No. 62 / 698,541, the entire contents of which applications are expressly incorporated herein by reference. Background technique [0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging and broadcast. A typical wireless communication system may employ multiple access techniques capable of supporting communication with multiple users by sharing available system resources (eg, bandwidth, transmit power). Examples of such multiple access techniques include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Divisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0408H04B7/06H04B7/08
CPCH04B7/0408H04B7/0617H04B7/0619H04B7/063H04B7/0695H04B7/088H04W24/10H04W16/28H04W88/06H04W72/046
Inventor K·文努戈帕尔M·P·约翰威尔逊厉隽怿白天阳周彦骆涛
Owner QUALCOMM INC