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Precoding matrix indication method, terminal and network side equipment

A technology of precoding matrix and network side equipment, which is applied in the field of communication, can solve the problem of high complexity of blind detection of receiving control signaling, and achieve the effect of reducing the complexity of blind detection

Active Publication Date: 2018-11-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a precoding matrix indication method, terminal and network side equipment to solve the problem of high complexity of blind detection of terminal receiving control signaling

Method used

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  • Precoding matrix indication method, terminal and network side equipment
  • Precoding matrix indication method, terminal and network side equipment
  • Precoding matrix indication method, terminal and network side equipment

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Embodiment Construction

[0060] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0061] see figure 1 , figure 1 It is a schematic diagram of a network structure applicable to an embodiment of the present invention, such as figure 1 As shown, it includes a terminal 11 and a network side device 12, wherein the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (personal digital assistant, PDA for short), mobile For terminal-side devices such as mobile internet devices (Mobile Internet Device, MID) or wearable devices (Wearable Devices), it should be noted that the specific type of the terminal 11 is not limited in this embodiment of the present invention. The terminal 11 can establish communication with the network-side device 12, wherein ...

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Abstract

The invention provides a precoding matrix indication method, a terminal and network side equipment. The method comprises the following steps: the terminal receives a control signaling sent by the network side equipment, the control signaling comprises the precoding information of N-bit, and the N is positive integer; the terminal determines the amount of the precoding particle according to the scheduling resource, and determines the precoding information bit of each precoding particle in the precoding information of N-bit according to the amount of the precoding particles, wherein each precoding particle comprises at least one sub-band, and each sub-band comprises at least one PRB; and the terminal acquires the precoding matrix indicated by the precoding information bit of each precoding particle. The blind test complexity of receiving the controlling signal by the terminal can be reduced through the indication method provided by the embodiment of the invention.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a precoding matrix indication method, a terminal and a network side device. Background technique [0002] In the communication system (for example: NR system), because the terminal has a large number of transmitting antennas and the computing power of the terminal is improved, it is considered to use sub-band precoding for uplink data transmission, that is, the terminal uses a frequency resource on the scheduled uplink transmission data according to a Small subbands are precoded, and different precoding matrices are used on different subbands, which is called subband precoding. However, since the size of the scheduled resource is variable, the number of subbands is also variable, so that the number of control signaling bits notified by the network side device for precoding varies according to the number of subbands. For example: if the number of transmit antennas ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00H04L1/00
CPCH04L1/0038H04L5/0053H04W72/23H04B7/0639H04B7/0417H04L5/0057H04L5/0023H04B7/0456H04L1/0027
Inventor 塔玛拉卡·拉盖施高秋彬李辉
Owner DATANG MOBILE COMM EQUIP CO LTD
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