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Uplink signal transmission method, scheduling information determination method and related equipment

A signal scheduling and signal transmission technology, which is applied in the directions of transmission path sub-channel allocation, transmission system, pilot signal allocation, etc., can solve the problem of poor uplink transmission performance of terminals

Pending Publication Date: 2020-10-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide an uplink signal transmission method, a scheduling information determination method, and related equipment to solve the problem of relatively poor uplink transmission performance of terminals

Method used

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  • Uplink signal transmission method, scheduling information determination method and related equipment
  • Uplink signal transmission method, scheduling information determination method and related equipment
  • Uplink signal transmission method, scheduling information determination method and related equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0692] The base station configures multiple SRS resources for CSI measurement based on codebook PUSCH transmission for the terminal (for example, in NR system Rel-15, usage is configured as SRS resources in the SRS resource set of 'codebook'), one or more The number of antenna ports included in one SRS resource is equal to the maximum number of antenna ports that can be included in one SRS resource supported by the terminal, and the number of antenna ports included in the remaining SRS resources (which can be one or more) is less than the number of antenna ports that can be included in one SRS resource supported by the terminal. Maximum number of antenna ports. Optionally, the number of antenna ports included is equal to the maximum number of antenna ports that can be included in one SRS resource supported by the terminal is one, and the number of antenna ports included is less than the maximum number of antenna ports that can be included in an SRS resource supported by the ter...

Embodiment 2

[0720] The base station configures multiple SRS resources for the terminal to use for codebook-based PUSCH transmission CSI measurement (for example, in the NR system Rel-15, SRS resources in the SRS resource set whose usage is configured as 'codebook'), all SRS resources (It may be one or more) The number of antenna ports included is less than the maximum number of antenna ports that can be included in one SRS resource supported by the terminal.

[0721] For an SRS resource that contains less antenna ports than the maximum number of antenna ports supported by a terminal, the terminal can use antenna virtualization to use multiple transmit chains (Tx chain) and / or PA to transmit the same SRS antenna port. Of course, the terminal can also send an SRS port through a Tx chain or PA.

[0722] When the codebook-based PUSCH transmission is scheduled through DCI format 0_1, the terminal uses the following PUSCH transmission power adjustment rules:

[0723] The transmit power of the...

Embodiment 3

[0749] The base station configures multiple SRS resources for CSI measurement based on codebook-based PUSCH transmission for the terminal (for example, in the NR system Rel-15, the SRS resources in the SRS resource set whose usage is configured as 'codebook').

[0750] For an SRS resource that contains less antenna ports than the maximum number of antenna ports that can be included in one SRS resource supported by the terminal, the terminal can use antenna virtualization to send the same SRS using multiple transmit chains (Tx chain) and / or PAs Antenna port.

[0751] When the codebook-based PUSCH transmission is scheduled through DCI format 0_1, the terminal uses the following PUSCH transmission power adjustment rules:

[0752] For m SRS resources, when the SRS resource indicated by the SRI is any one of the m resources, the terminal uses the transmission power of the PUSCH using N / M 1 Scale, and then evenly distribute to the antenna ports of each PUSCH non-zero transmission; ...

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Abstract

The embodiment of the invention provides an uplink signal transmission method, a scheduling information determination method and related equipment. The method comprises the following steps that: a terminal receives uplink signal scheduling information sent by network side equipment; under the condition that the SRS resource indicated by the uplink signal scheduling information is the first SRS resource, the terminal uniformly allocates the first power to an antenna port with signal non-zero transmission for uplink signal transmission, wherein the first SRS resource is shown in the specification, the number of the contained antenna ports of the SRS resources meets a first preset condition, the first pre-configured SRS resources or the SRS resources except the second SRS resources, and the second SRS resources are the SRS resources with the number of the contained antenna ports meeting a second preset condition or the second pre-configured SRS resources, the first power is the uplink channel sending power, or the first power is the sending power obtained after the uplink channel sending power is scaled by using the first scaling factor. The embodiment of the invention can improve theuplink transmission performance of the terminal.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to an uplink signal transmission method, a scheduling information determination method and related equipment. Background technique [0002] In the communication system, the network side device can configure the terminal to perform codebook-based uplink signal transmission. For example, in a New Radio (NR) system, the network side device can configure the terminal to perform codebook-based uplink signal transmission. And in the codebook-based uplink signal transmission technology, the network side device will configure channel sounding reference signal (Sounding Reference Signal, SRS) resources for channel state information (ChannelState Information, CSI) measurement (or acquisition) for the terminal, Wherein, the CSI is CSI for uplink signal transmission based on a codebook. However, no matter what SRS resource is configured in the current communication system, t...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12H04B7/0456H04L5/00
CPCH04W72/121H04W72/1268H04B7/0456H04W72/0473H04L5/0048H04W72/23H04W72/04H04W72/12H04L5/00
Inventor 黄秋萍陈润华高秋彬
Owner DATANG MOBILE COMM EQUIP CO LTD
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