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Method of frequency resource allocation

A technology of frequency resources and resource blocks, applied in the field of frequency resource allocation, can solve the problem of undetermined frequency scheduling and other issues

Active Publication Date: 2020-01-31
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in LTE Rel.14, NR and legacy LTE standards, the CSI-RS transmission scheme using frequency scheduling has not yet been determined

Method used

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  • Method of frequency resource allocation
  • Method of frequency resource allocation
  • Method of frequency resource allocation

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Embodiment Construction

[0037] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the embodiments of the present invention, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail in order not to obscure the invention.

[0038] In the following description, numerous details are set forth in order to provide a more thorough explanation of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form, rather than in detail, in order to avoid obscuring the invention.

[0039] In one or more embodiments...

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Abstract

A method of frequency resource allocation for Channel State Information Reference Signal (CSI-RS) in a wireless communication system includes transmitting, from a base station (BS) to a user equipment(UE), a CSI-RS using a CSI-RS resource, calculating, with the UE, CSI based on the CSI-RS, and reporting, from the UE to the BS, the CSI. The CSI-RS resource in a frequency domain is allocated to oneor more frequency resources that are part of a carrier bandwidth. The method further includes notifying, with the BS, the UE of a location of the one or more frequency resources in the frequency domain.

Description

technical field [0001] The present invention generally relates to a frequency resource allocation method for channel state information (Channel State Information, CSI)-reference signal (Reference Signal, RS), CSI-interference measurement, zero-power CSI-RS and other RS ​​in a wireless communication system method. Background technique [0002] In the CSI acquisition scheme under Long Term Evolution (LTE) Rel.14 and New Radio (NR). Beamforming can be applied to CSI-Reference Signals (RS). Beamforming CSI-RS can reduce downlink signal overhead and increase CSI-RS coverage by obtaining beamforming gain. Furthermore, efficient channel estimation can be performed using beamformed CSI-RS. [0003] However, in LTE Rel.14, NR and legacy LTE standards, a CSI-RS transmission scheme using frequency scheduling has not been determined. [0004] [citation list] [0005] [Non-patent reference] [0006] [Non-Patent Reference 1] 3GPP, TS 36.211 V 14.2.0 [0007] [Non-Patent Reference 2...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/54
CPCH04L5/0048H04B17/336H04L1/0026H04L5/0051H04L25/0226H04W24/10H04W72/0453H04W72/542H04W72/541
Inventor 柿岛佑一那崇宁永田聪
Owner NTT DOCOMO INC