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Data transmission device in multi-user downlink cellular system

A technology for receiving equipment and transmitting equipment, applied in multi-carrier systems, transmission modification based on link quality, transmission monitoring and other directions, and can solve the problem of not allowing the use of non-orthogonal transmission.

Active Publication Date: 2019-10-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach does not allow exploiting the full potential of non-orthogonal transmission

Method used

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  • Data transmission device in multi-user downlink cellular system
  • Data transmission device in multi-user downlink cellular system
  • Data transmission device in multi-user downlink cellular system

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Experimental program
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Embodiment Construction

[0051] Embodiments of the invention disclosed herein relate to apparatus for concurrent transmission of multiple independent data streams for receiving devices having experienced different channel qualities. The apparatus may include a sending device and a receiving device. Embodiments of the present invention apply to the downlink of a wireless communication system operating, for example, in frequency division duplex (FDD) mode, time division duplex (TDD) mode, or other suitable wireless communication protocols.

[0052] figure 1 One embodiment of a transmitting device 100 incorporating aspects of the present invention is shown. The sending device 100 comprises an input unit 110 for receiving channel quality values ​​or information from different receiving devices or users, also called User Equipment (UE). Memory 120 is configured to store general information, such as multiplexing matrix libraries and program instructions. The output unit 130 is configured to send downlin...

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Abstract

A data transmission and signaling sending method in a sending device, configured to concurrently transmit non-orthogonal independent downlink data streams to receiving devices in a wireless communication system, and send control information to all receiving devices, the control information includes: selected as The index of the receiver for the transmission, the encoding rate of the selected receiver, the tag bits-receiver allocation, the extended constellation index, and the number of resource elements used for the transmission. The invention also provides a sending device and a receiving device.

Description

technical field [0001] Aspects of the present disclosure relate generally to wireless communication systems, and more particularly to concurrent transmission of downlink data streams in multi-user systems. Background technique [0002] With the ubiquity of modern wireless communication devices such as cell phones, smartphones and tablet devices, the demand for large multimedia data capacity for a large number of user equipments (UEs) or mobile stations has also increased. This multimedia data can include streaming radio, online games, music, and television on the receiving device. To support this increasing demand for higher data rates, based on various transmission techniques such as Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA) and single carrier FDMA (SC_FDMA) to deploy multiple access networks. New standards for wireless networking are also bei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/34H04W28/06H04W28/18H04W72/02
CPCH04L27/3461H04L27/3488H04W72/02H04W28/18H04W28/06H04L1/0042H04L1/0003H04L1/0009H04L1/0047H04B17/336H04L5/0057
Inventor 阿尔伯托·杰赛普·佩罗蒂帕布罗·索达蒂布兰尼斯拉夫·波波维奇
Owner HUAWEI TECH CO LTD