Signal transmission method and device
A technology of signal transmission and communication equipment, applied in the field of communication, which can solve the problem that the interference station cannot detect the interfered reference signal
Active Publication Date: 2020-02-18
CHINA MOBILE COMM LTD RES INST +1
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Problems solved by technology
[0007] An object of the embodiments of the present invention is to provide a signal transmission method and device to solve the problem that the interfering station cannot detect the interfered reference signal
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[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.
[0047] The term "comprising" and any variations thereof in the description and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to the explicit instead of those steps or elements explicitly listed, other steps or elements not explicitly listed or inherent to the process, method, product or apparatus may b...
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The embodiment of the invention provides a signal transmission method and equipment. The method comprises the following steps: determining a sending moment of a first type of reference signal; sendingthe reference signal of the first type and / or receiving the reference signal of the first type according to the sending moment of the reference signal of the first type; wherein in one uplink-downlink switching period, the downlink transmission of the communication equipment is before the sending moment of the reference signal of the first type, or the downlink transmission of the communication equipment cannot exceed the sending moment of the reference signal of the first type, or the communication equipment has no downlink transmission after the sending moment of the reference signal of thefirst type. In the embodiments of the present invention, the communication equipment as an interference station can receive an interfered reference signal in an uplink time period of an original frame structure, and can determine the number of fallback symbols.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular to a signal transmission method and device. Background technique [0002] see figure 1 , in time division duplex (Time Division Duplexing, TDD) system networking, in order to avoid uplink and downlink interference between cells, the same uplink and downlink configurations are generally selected. And a guard period (Guard Period, GP) is set between the downlink and uplink transmissions, which is generally N (for example: less than <14) Orthogonal Frequency Division Multiplexing (OFDM) symbols. The selection of the GP length needs to ensure that the downlink transmission of the base station within a certain range (for example ~ tens of kilometers) will not interfere with the uplink reception of the base station. [0003] Usually, considering the loss of electromagnetic wave propagation in space, the base station does not experience the interfe...
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Patent Timeline
Login to View More IPC IPC(8): H04J11/00H04L5/00H04W72/04H04L27/26H04W16/10H04W72/08
CPCH04J11/005H04J11/0056H04L5/0048H04L27/2613H04W16/10H04W72/20H04W72/541
Inventor 金婧侯雪颖邵华刘建军柯颋
Owner CHINA MOBILE COMM LTD RES INST