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Method and network device for determining granularity of channel state information reference signal

A technology of channel state information and network equipment, applied in the field of communication, can solve the problems of terminal equipment transmission, inability to determine the granularity of CSI-RS, and inability to determine the granularity of CSI-RS independently, and achieve the effect of accurate and efficient communication

Active Publication Date: 2021-03-05
VIVO MOBILE COMM CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method and network equipment for determining the granularity of channel state information reference signals, so as to solve the problem that when CSI-RS is used for beam management or non-subband reporting and the network equipment does not configure the subband size In some cases, the network device cannot determine the granularity of the CSI-RS and cannot accurately send the CSI-RS to the terminal device, or the network device cannot independently determine the granularity of the CSI-RS, resulting in the inability to accurately send the CSI-RS to the terminal device question

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  • Method and network device for determining granularity of channel state information reference signal
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  • Method and network device for determining granularity of channel state information reference signal

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Embodiment Construction

[0026] 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.

[0027] The technical scheme of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (GlobalSystem of Mobile communication, GSM), Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (Long Term Evolution, LTE) / E...

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Abstract

The invention discloses a method and network equipment for determining the granularity of a channel state information reference signal. The method includes: when the subband information reported by a terminal device is not detected, determine the channel state information reference Granularity of information CSI-RS; wherein, the multiple manners include: determining a preset granularity as the granularity of the CSI-RS, and selecting the granularity of the CSI-RS from alternative granularities. The method of the embodiment of the present invention enables the network device to determine the granularity of the CSI-RS when the sub-band information reported by the terminal device is not detected, so as to successfully send the CSI-RS to the terminal device, which is convenient for the terminal and the network Communicate more accurately and efficiently.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and network equipment for determining the granularity of a channel state information reference signal (CSI-RS). Background technique [0002] With the rapid development of communication technology, more and more new technologies appear in the communication field. In the fifth-generation mobile communication system, especially in the discussion of the new radio (new radio, NR) standard, the granularity N refers to the continuous channel state information-reference signal (CSI-RS) in the frequency domain Number of resource blocks (Resource Block, RB). Generally speaking, if the network device configures the mapping relationship between the carrier bandwidth part and the subband size, the granularity N of the CSI-RS can be equal to the subband size, and the terminal equipment (User Equipment, UE) can follow the subband size configured by the network device. The size is r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
Inventor 施源孙鹏宋扬雷国华
Owner VIVO MOBILE COMM CO LTD
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