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Hybrid common/independent fd-basis for type ii csi enhancement

A set and linear combination technology, applied in polarization/direction diversity, diversity/multi-antenna systems, space transmit diversity and other directions, can solve the problems of increased feedback overhead and infeasible high-level representation, to reduce index space and optimize performance /Overhead trade-off, feedback on the effect of overhead improvement

Pending Publication Date: 2021-07-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One problem is that the feedback overhead increases with the number of layers, making high-level representations infeasible

Method used

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  • Hybrid common/independent fd-basis for type ii csi enhancement
  • Hybrid common/independent fd-basis for type ii csi enhancement
  • Hybrid common/independent fd-basis for type ii csi enhancement

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Embodiment Construction

[0127] Generally, all terms used herein are to be interpreted according to their ordinary meaning in the relevant technical field, unless a different meaning is explicitly given and / or implied from the context in which the term is used. Unless expressly stated otherwise, all references to a / an / the described element, device, component, means, step, etc. shall be construed openly as referring to at least one instance of the element, device, component, means, step, etc. . The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless one step has to be explicitly described as being after or before another step and / or implicitly one step must be after or before another step . Any feature of any embodiment disclosed herein can be applied to any other embodiment, where appropriate. Likewise, any advantage of any embodiment can be applied to any other embodiment, and vice versa. Other objects, features and advantages of the accompanying e...

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Abstract

A method performed by a wireless device (510, 700, 1000) for transmitting a channel state information (CSI) report for a downlink channel comprises obtaining (601) a first set of candidate frequency-domain components and determining (602) a set of spatial-domain components. The method comprises determining (603) a second set of candidate frequency-domain components as a subset of the first set of candidate frequency-domain components. The method comprises determining (604), for each spatial-domain component of the set of spatial-domain components, a spatial-domain component-specific set of frequency-domain components as a subset of the second set of candidate frequency-domain components. The method comprises transmitting (605), to a network node (560, 900), the CSI report.

Description

technical field [0001] The present disclosure relates generally to wireless communications and, more particularly, to hybrid common / independent frequency duplex bases for Type II channel state information enhancement. Background technique [0002] Multiple antenna techniques can significantly increase the data rate and reliability of wireless communication systems. Equipping both the transmitter and the receiver with multiple antennas results in a multiple-input multiple-output (MIMO) communication channel with improved performance. Such systems and / or related technologies are commonly referred to as MIMO. [0003] New Radio (NR) standards are currently evolving with enhanced MIMO support. A core component in NR is support for MIMO antenna deployment and MIMO-related techniques such as spatial multiplexing. The spatial multiplexing mode aims at high data rates under favorable channel conditions. [0004] figure 1 A transmission structure 100 is shown for a precoding spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04B7/06H04B7/10
CPCH04B7/0639H04B7/0626H04B7/0478H04B7/10H04W72/04
Inventor 尼古拉斯·维尔耐尔森塞巴斯蒂安·法克瑟马克西姆·吉尔尼克
Owner TELEFON AB LM ERICSSON (PUBL)
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