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A transmission method and device for a reference signal pattern

一种参考信号图样、传输方法的技术，应用在传输路径的分离装置、基于链路质量的传输修改、传输监控等方向

Active Publication Date: 2020-03-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the fifth-generation mobile communication (5th-Generation, 5G) system, CSI-RS can support more than 8 ports, and the design of CSI-RS pattern (pattern) in LTE system is not suitable for 5G, CSI-RS Pattern design is one of the key issues of 5G

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  • A transmission method and device for a reference signal pattern
  • A transmission method and device for a reference signal pattern
  • A transmission method and device for a reference signal pattern

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Embodiment Construction

[0045] Embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

[0046] The embodiment of the present invention can be applied to a wireless communication system. The wireless communication system is generally composed of cells, each cell includes a base station (Base Station, BS), and the base station provides communication services to multiple terminal devices, wherein the base station is connected to the core network device, Such as figure 2 shown. Wherein, the base station includes a baseband unit (Baseband Unit, BBU) and a remote radio unit (Remote Radio Unit, RRU). BBU and RRU can be placed in different places, for example: RRU is far away and placed in an open area away from high traffic, and BBU is placed in the central computer room. The BBU and RRU can also be placed in the same equipment room. The BBU and the RRU may also be different components under one rack.

[0047] It should b...

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Abstract

The embodiment of the present invention discloses a reference signal pattern transmission method and its device, wherein the method includes the following steps: the network device determines the number of symbols N occupied by the channel state information reference signal CSI-RS resource, N is a positive integer, and N={ 1,2,4}; the network device obtains the pattern of the CSI-RS resource according to the number of symbols N; the network device sends the configuration information corresponding to the pattern of the CSI-RS resource to the terminal device; where, N=1, CSI-RS The resource pattern occupies 1 resource element RE in the time domain, and occupies at least 4 consecutive REs in the frequency domain; or, N=2, the pattern of the CSI-RS resource occupies 2 consecutive REs in the time domain, in Occupy at least 2 consecutive REs in the frequency domain; or, N=4, the CSI-RS resource pattern occupies 4 consecutive REs in the time domain, and occupies at least 2 consecutive REs in the frequency domain. Embodiments of the present invention can realize pattern design of channel state information reference signal resources in a 5G system.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for transmitting a reference signal pattern. Background technique [0002] The frame structure in the Long Term Evolution (LTE) system can be found in figure 1 As shown, a radio frame is 10ms, including 10 subframes with subframe indexes 0 to 9, each subframe is 1ms, and 1 subframe is divided into 2 slots. If it is a normal cyclic prefix (Cyclic Prefix, CP) mode, each slot has 7 Orthogonal Frequency Division Multiplexing (OFDM) symbols with symbol indices I=0 to I=6. The system allocates resources by allocating resource blocks (Resource Block, RB), and different bandwidths correspond to different allocated RB numbers. Usually, 1 RB contains time-domain resources occupied by one slot in the time dimension, and usually contains resources occupied by 12 subcarriers in the frequency dimension. The subcarrier spacing is 15kHz. The resource occupied by one su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B17/309
CPCH04B17/309H04L1/0026H04L5/0007H04L5/0048H04L5/0053H04L5/0057H04L5/0067H04L5/0094H04W28/18H04L27/2613H04L27/261H04L5/0023H04L5/0039H04B7/0626H04B7/0689H04W72/0446H04W72/0453
Inventor 武露刘永
Owner HUAWEI TECH CO LTD
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