A method and device for determining the allocation of 5G demodulation reference signals
A demodulation reference signal and determination method technology, applied in the field of determination of 5G demodulation reference signal allocation, can solve problems such as complex propagation paths
Active Publication Date: 2021-01-08
BEIJING UNIV OF POSTS & TELECOMM
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[0005] The propagation path between the sending end and the receiving end of the wireless channel is very complex and has great randomness
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[0060]The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0061]The channel estimation performance of DMRS is closely related to the allocation of demodulation reference signals. The determination of the demodulation reference signal allocation mode can also be understood as the determination of the demodulation reference signal density.
[0062]In 5G, the density of DMRS is set by the high-level parameter DL-DMRS-add-pos. The overall resources of transmission are certain. When the DMRS density is high, the re...
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The embodiment of the invention provides a 5G demodulation reference signal allocation determination method and device. The method and device are applied to a base station, and the method comprises the following steps: receiving an allocation identification value corresponding to a conversion condition and reported by user equipment, wherein the allocation identification value reported by the userequipment is reported when determining that a changed counter satisfies the conversion condition, and the changed counter is obtained by computing the counter before change according to the accuracyof the received data by the user equipment; and determining a demodulation reference signal allocation way corresponding to the allocation identification value reported by the user equipment accordingto the allocation identification value reported by the user equipment. Through the 5G demodulation reference signal allocation determination method and device provided by the embodiment of the invention, the transmission quantity of the effective data and the accuracy of the channel estimation can be both taken into consideration.
Description
Technical field[0001]The present invention relates to the field of wireless communication technology, and in particular to a method and device for determining the allocation of 5G demodulation reference signals.Background technique[0002]The rapid development of the mobile Internet and Internet of Things market and business applications has promoted the rapid increase in the business demand of the fifth-generation communication technology (5th-Generation, 5G). According to the report, compared with the fourth-generation communication technology (4th-Generation, 4G), 5G requires a transmission rate increase of 10 to 100 times, a connection device density increase of 10 to 100 times, and a user experience rate of 0.1 to 1Gb / s. At the same time, indicators such as energy efficiency, spectrum efficiency, and peak rate are also considered.[0003]An outstanding goal of 5G is to significantly increase the capacity of current wireless networks. As a key component of 5G, a large-scale multiple...
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IPC IPC(8): H04L5/00H04L1/00
CPCH04L1/0061H04L5/0051
Inventor 李立华张平尹辉
Owner BEIJING UNIV OF POSTS & TELECOMM