Method and device thereof for transmitting reference signal pattern

A technology of reference signal pattern and transmission method, applied in the directions of separation device of transmission path, transmission modification based on link quality, transmission system, etc.

Pending Publication Date: 2018-11-13
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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  • Method and device thereof for transmitting reference signal pattern
  • Method and device thereof for transmitting reference signal pattern
  • Method and device thereof for transmitting 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, like 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 be n...

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Abstract

The embodiment of the invention discloses a method and device thereof for transmitting a reference signal pattern. The method comprises the following steps: determining the number of symbols N occupied by a CSI-RS (Channel State Information-Reference Signal) resource by network equipment, wherein N is a positive integer, and N={1, 2, 4}; obtaining a pattern of the CSI-RS resource by the network equipment according to the number of symbols N; transmitting configuration information corresponding to the pattern of the CSI-RS resource to terminal equipment by the network equipment, wherein N=1, and the pattern of the CSI-RS resource occupies one resource element RE on the time domain, and occupies at least four continuous REs on the frequency domain; or N=2, and the pattern of the CSI-RS resource occupies two continuous REs on the time domain, and occupies at least two continuous REs on the frequency domain; and or N=4, and the pattern of the CSI-RS resource occupies four continuous REs onthe time domain, and occupies at least two continuous REs on the frequency domain. The method for transmitting the reference signal pattern provided by the embodiment of the invention can implement the pattern design of the channel state information-reference signal resource 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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IPC IPC(8): H04L1/00H04W28/18
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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