Channel state measure pilot frequency configuration method and device

A technology for measuring pilot frequency and channel state, which is applied in the field of communication, can solve the problems of high terminal complexity, high overhead, and channel measurement performance degradation, and achieve the effects of improving channel estimation quality, reducing overhead, and reducing the complexity of transmission and reception

Inactive Publication Date: 2017-04-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of technology and requirements, it is necessary to further develop the technology for more number of antenna termination applications, such as the number of ports is 12, 16, etc., which involves the measurement of the channel state of these more number of ports, but the existing technology CSI-RS transmission with ports 12 and 16 cannot be supported
In addition, when the number of ports increases to 12 or 16, it will cause problems such as high overhead, degraded channel measurement performance, and high terminal complexity.

Method used

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  • Channel state measure pilot frequency configuration method and device
  • Channel state measure pilot frequency configuration method and device
  • Channel state measure pilot frequency configuration method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0137] In this embodiment, the base station first determines the configuration information of the CSI-RS, then generates signaling including the configuration information of the CSI-RS, and then transmits the signaling including the configuration information of the CSI-RS. Wherein, for example, a bit (bit) is used to represent port number information, b bit represents pilot resource pattern information, and c bit represents a multiplexing mode between CSI-RS ports, where a+b+c=X.

[0138] Alternatively, a bit may also be used to indicate the port number information, and b bit may be used to indicate the joint coding of the pilot resource pattern information and the multiplexing mode between CSI-RS ports, where a+b=X.

[0139] Alternatively, X bits may also be used to represent the joint coding of the port number information, the pilot resource pattern information and the multiplexing mode among the CSI-RS ports.

[0140] Alternatively, a bit may also be used to indicate port n...

Embodiment 2

[0144] In this embodiment, when the number of ports is greater than the first threshold (TH1), the M candidate pilot resource patterns adopt at least two code division multiplexing methods between CSI-RS ports, and M is an integer greater than 1 . TH1 can take values ​​in {4, 8, 12}; the code division multiplexing methods between CSI-RS ports include: the length of code division multiplexing is 2, the length of code division multiplexing is 4, and the code division multiplexing in the time domain Division multiplexing, code division multiplexing in the frequency domain, simultaneous code division multiplexing in the time domain and frequency domain, and combinations of the above methods.

Embodiment 3

[0146] In this embodiment, the M candidate pilot resource patterns are divided into two sets, the CSI-RS ports of the first pattern set adopt the first type of multiplexing method, and the CSI-RS ports of the second pattern set adopt the second type The multiplexing mode, the first type of multiplexing mode is different from the second type of multiplexing mode, wherein M is an integer greater than 1.

[0147] For example, the first type of code division multiplexing adopted by the CSI-RS ports of the first pattern set is the length of the code division multiplexing is 2, and the second type of code division multiplexing adopted by the CSI-RS ports of the second pattern set is The method is that the length of code division multiplexing is 4; or, the first type of code division multiplexing mode adopted by the CSI-RS port of the first pattern set is that the length of code division multiplexing is 4, and the CSI-RS port of the second pattern set The second type of code division...

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Abstract

The invention discloses a channel state measure pilot frequency (CSI-RS) configuration method and device; the method comprises the following steps: a base station determines CSI-RS configuration information; the base station forms a signaling containing the CSI-RS configuration information; the base station emits the signaling containing the CSI-RS configuration information. The CSI-RS configuration information comprises a port number, pilot frequency resource pattern information and a reuse mode between CSI-RS ports; when the port number is bigger than 1, the CSI-RS has M candidate pilot frequency resource patterns, wherein M is an integer bigger than 1. The CSI-RS configuration method and device can support CSI-RS transmission with the port number bigger than 8.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for configuring Channel State Information-Reference Signal (CSI-RS, Channel State Information-Reference Signal). Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) / Long Term Evolution Upgrade (LTE-A, LTE-Advanced) technology is a mainstream fourth-generation mobile communication technology (4G). LTE / LTE-A is divided into the following two different duplex modes: frequency division duplex mode (FDD, Frequency Division Duplex) and time division duplex mode (TDD, Time Division Duplex). The frame structure of the frequency division duplex mode is called the first type frame structure (Frame structure type 1), and the frame structure of the time division duplex mode is called the second type frame structure (Frame structure type 2). [0003] figure 1 is a schematic diagram of the frame structure of the first type. Such as figure 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/003H04L5/0048H04L1/06H04L5/00H04B7/06H04J13/004H04L25/0224
Inventor 李永李儒岳陈艺戬肖华华鲁照华蔡剑兴吴昊
Owner ZTE CORP
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