Uplink precoding transmission method, network side equipment and terminal equipment

A technology of network side equipment and terminal equipment, applied in the field of communication, can solve the problems of low transmission performance of DFT-S-OFDM single-carrier system, and achieve the effect of improving transmission performance

Active Publication Date: 2019-12-13
VIVO MOBILE COMM CO LTD
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Problems solved by technology

[0003] In the DFT-S-OFDM single-carrier system, only wideband transmission precoding matrix indicator (TPMI, Transport Precoding Matrix Indicator) is supported, that is, all physical resource blocks (PRB, PhysicalResource Block) used to transmit PUSCH can only share the same uplink transmission codebook, leading to lower transmission performance in DFT-S-OFDM single-carrier systems

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  • Uplink precoding transmission method, network side equipment and terminal equipment
  • Uplink precoding transmission method, network side equipment and terminal equipment
  • Uplink precoding transmission method, network side equipment and terminal equipment

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] see figure 1 , figure 1 A schematic diagram of a network architecture provided by an embodiment of the present invention. Such as figure 1 As shown, it includes a user terminal 11 and a base station 12, wherein the user terminal 11 can be a terminal equipment (UE, User Equipment), for example: it can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), Terminal-side devices such as personal dig...

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Abstract

The embodiment of the invention discloses an uplink precoding transmission method, network side equipment and terminal equipment, and the method comprises the steps: transmitting DCI signaling when anuplink is configured to transmit a PUSCH based on a DFT-S-OFDM waveform; wherein the DCI signaling is used for indicating a plurality of to-be-scheduled frequency band resources and a TPMI corresponding to each to-be-scheduled frequency band resource to terminal equipment; the antenna ports corresponding to different to-be-scheduled frequency band resources are different, and the antenna ports corresponding to the different to-be-scheduled frequency band resources are determined by an uplink transmission codebook indicated by the TPMI; and the to-be-scheduled frequency band resource is a section of continuous PRB for transmitting the PUSCH. According to the method of the invention, the PUSCH can be transmitted on different antenna ports by different to-be-scheduled frequency band resources by utilizing antenna diversity and frequency selectivity diversity, and the transmission performance of the DFT-S-OFDM single-carrier system is effectively improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for uplink precoding transmission, network side equipment and terminal equipment. Background technique [0002] In the new air interface (NR, New Radio) of the fifth generation (5G) mobile communication system, the uplink is configured based on Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM, Discrete Fourier Transformation Spread Orthogonal Frequency Division Multiplex) The waveform transmits the Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel), which can effectively reduce the Peak-to-average PowerRatio (PAPR, Peak-to-average PowerRatio). [0003] In the DFT-S-OFDM single-carrier system, only wideband transmission precoding matrix indicator (TPMI, Transport Precoding Matrix Indicator) is supported, that is, all physical resource blocks (PRB, PhysicalResource Block) used to transmit PUSCH can only share the same upl...

Claims

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Application Information

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IPC IPC(8): H04B7/0456H04B7/06
CPCH04B7/0456H04B7/0634H04B7/0639
Inventor 孙鹏刘昊
Owner VIVO MOBILE COMM CO LTD
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