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Network node and its method

A technology of network nodes and user equipment, applied in baseband system components, characterized by signaling, wireless communication, etc., to achieve the effect of improving data transmission

Active Publication Date: 2020-04-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current mechanisms for obtaining CSI such as those in Long Term Evolution (LTE) have not been designed for this purpose

Method used

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  • Network node and its method
  • Network node and its method
  • Network node and its method

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Embodiment Construction

[0090] figure 1 The network node 100 provided by the embodiment of the present invention is shown. The network node 100 may also refer to a wireless network node, and is a part of the wireless access network of the wireless communication system 500 . A network node is also called a base station, such as a radio base station (Radio Base Station, RBS for short), and in some wireless access networks, it can also be called a transmitter, eNB, eNodeB, NodeB or B node, depending on the technology and terminology used . The wireless network nodes can be divided into different types based on transmission power, that is, cell size, such as macro eNodeB, home eNodeB or pico base station. The wireless network node may be a station (station, STA for short), which is a media access control (media access control, MAC for short) and physical layer (physical layer, referred to as PHY) interface of any device.

[0091] figure 1 The network node 100 in includes a processor 102 communicativ...

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Abstract

The invention relates to network nodes. The network node (100) includes: a processor (102) and a transceiver (104), wherein the processor (102) is configured to: if between the network node (100) and at least one user equipment (300) The channel estimation timer CET of the wireless channel is valid, selects at least one user equipment (300); The processor (102) is also used to schedule data transmission to the at least one selected user equipment (300); the transceiver (104) for performing a scheduled data transmission to said at least one selected user equipment (300). Furthermore, the invention relates to a corresponding method and a wireless communication system comprising such a network node, a computer program and a computer program product.

Description

technical field [0001] The invention relates to network nodes. Furthermore, the invention relates to a corresponding method and a wireless communication system comprising such a network node, a computer program and a computer program product. Background technique [0002] Channel estimation is a major function of most wireless communication systems. In some wireless communication systems, it is advantageous to perform channel estimation on uplink (Uplink, UL) transmission for the purpose of downlink (Downlink, DL) beamforming. The reason is that compared with the user equipment, the network nodes of the radio access network have more antennas, and the transmission of feedback messages can be avoided through the assumption of channel reciprocity. Channels are estimated from UL beacon transmissions, thus allowing channel estimation for multiple receive antennas in the same transmission. In addition, as the number of antennas at network nodes increases, more user equipments ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L5/00H04L25/02
CPCH04L1/0027H04L5/0085H04L5/0087H04L5/0094H04L25/0204H04L25/0224H04W72/542H04L25/0202H04W72/0446
Inventor 彼得里·克拉亨里克·伦奎思约翰·克里斯特·卡尔福特
Owner HUAWEI TECH CO LTD