Demodulation pilot configuration method and apparatus
A technology of demodulation pilot frequency and configuration method, which is applied in the field of demodulation pilot frequency configuration method and device, and can solve the problems that DMRS cannot be satisfied, and the multiplexing of user pilot frequency is increased.
Active Publication Date: 2018-11-02
HUAWEI TECH CO LTD
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[0005] Embodiments of the present invention provide a demodulation pilot configuration method and device to overcome the problem that the configuration of DMRS in the prior art cannot satisfy pilot multiplexing for an increasing number of users
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[0170] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0171] figure 2 It is a flow chart of Embodiment 1 of the demodulation pilot signal configuration method of the present invention. image 3 It is a schematic diagram of the candidate demodulation pilot pattern in Embodiment 1 of the method of the present invention Figure 1 ; Wherein, the pattern may refer to a corresponding positional relation...
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The embodiment of the invention provides a demodulation pilot configuration method and apparatus. The demodulation pilot configuration method comprises the following steps: a second network device selects one of at least two candidate demodulation pilot patterns having the same number of ports, and maps a demodulation pilot signal onto the candidate demodulation pilot pattern, wherein the number of ports is equal to the number of layers of data streams, the at least two candidate demodulation pilot patterns having the same number of ports are different, and at least one of the at least two candidate demodulation pilot patterns contains a physical resource unit RE occupied by a non-zero power demodulation pilot signal and a physical resource unit RE occupied by a zero power demodulation pilot signal; and the second network device sends the mapped demodulation pilot signal and the configuration information of the demodulation pilot signal to a first network device. By adoption of the demodulation pilot configuration method and apparatus provided by the embodiment of the invention, different demodulation pilot patterns are configured to different first network devices, thereby avoiding the interference to other first network devices, and increasing the number of multiplexing users.
Description
technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a demodulation pilot configuration method and device. Background technique [0002] 3D multi-antenna technologies such as dynamic three-dimensional (3D) beamforming technology, as a key technology to improve cell edge user throughput, cell user total throughput and average throughput, have attracted the industry's deep attention. According to the 3D channel information estimated by the user end, adjust the 3D beamforming weight at the active antenna end, so that the main lobe of the beam is "aligned" with the target user in the 3D space, which greatly improves the received signal power and improves signal interference and noise. Ratio, thereby improving the throughput of the entire system. The 3D beamforming technology needs to be based on Active Antenna Systems (AAS for short). Compared with traditional antennas, the active antenna AAS further provides...
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IPC IPC(8): H04L5/00
CPCH04W72/04
Inventor 刘鹍鹏刘江华
Owner HUAWEI TECH CO LTD