Transmission method for reference signal pattern and devices for method

A technology that refers to signal patterns and transmission methods, and is applied in the direction of separation devices of transmission paths, transmission modification based on link quality, transmission systems, etc.

Active Publication Date: 2019-04-26
HUAWEI TECH CO LTD
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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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  • Transmission method for reference signal pattern and devices for method
  • Transmission method for reference signal pattern and devices for method
  • Transmission method for reference signal pattern and devices for method

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Embodiment Construction

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

[0046] The embodiments of the present invention can be applied to a wireless communication system. The wireless communication system is usually 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. The base station includes a baseband unit (Baseband Unit, BBU) and a remote radio unit (Remote Radio Unit, RRU). The BBU and RRU can be placed in different places, for example: the RRU is far away, placed in an open area with high traffic volume, and the BBU is placed in the central computer room. BBU and RRU can also be placed in the same computer room. The BBU and RRU can also be different components under one rack.

[0047] It sh...

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Abstract

Embodiments of the invention disclose a transmission method for a reference signal pattern and devices for the method. The method comprises the following steps that a network device determines a symbolic number N occupied by channel state information-reference signal (CSI-RS) resources, wherein N is a positive integer, and N is equal to {1, 2, 4}; the network device obtains a pattern of the CSI-RSresources according to the symbolic number N; the network device sends configuration information corresponding to the pattern of the CSI-RS resources, wherein N is equal to 1, and the pattern of theCSI-RS resources occupies one resource element (RE) on the time domain and at least four continuous REs on the frequency domain; or N is equal to 2, and the pattern of the CSI-RS resources occupies two continuous REs on the time domain and at least two continuous REs on the frequency domain; or N is equal to 4, and the pattern of the CSI-RS resources occupies four continuous REs on the time domainand at least two continuous REs on the frequency domain. According to the embodiments of the invention, the pattern design of the channel state information-reference signal resources in a 5G system can be realized.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method and a device for transmitting a reference signal pattern. Background technique [0002] For the frame structure in the Long Term Evolution (Long Term Evolution, LTE) system, see figure 1 As shown, a radio frame is 10ms, including 10 subframes with subframe indices 0 to 9, each subframe is 1ms, and 1 subframe is divided into 2 slots (slots), if it is a normal cyclic prefix (Cyclic Prefix, CP) mode, each slot has 7 orthogonal frequency division multiplexing (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 the number of RBs allocated corresponding to different bandwidths is different. In general, 1RB includes time domain resources occupied by a slot in the time dimension, and usually includes resources occupied by 12 subcarriers in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/00
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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