Method and device for transmitting uplink data
A data and data signal technology, applied in the field of uplink data transmission, can solve problems affecting communication system performance, terminal device interference, waste of uplink transmission frequency domain resources, etc.
Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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[0003] However, in this case, in this prior art, data signals are still carried in units of 12 consecutive subcarriers, for example, the terminal equipment still occupies a subcarrier that does not need to carry the above-mentioned practically meaningful data signal, and uses the subcarrier These symbols increase the burden on terminal equipment, cause interference to other terminal equipment, and cause a waste of uplink transmission frequency domain resources, seriously affecting the performance of the communication system
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[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. 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.
[0059] The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and / or a computer running on a processor. Through the illustration, both the application runnin...
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Provided are a method and device for transferring uplink data, the method comprising: a network apparatus determines, from a first mapping mode and a second mapping mode, a target mapping mode; the network apparatus transmits, to a first terminal apparatus, information indicating the target mapping mode; the network apparatus receives a first demodulation reference signal and a first data signal generated by the first terminal apparatus performing resource mapping according to the target mapping mode; in the first mapping mode, a number of subcarriers mapped by the data signal is different from that of subcarriers mapped by the demodulation reference signal, the data signal being mapped to subcarriers of an integer multiple of N, the demodulation reference signal being mapped to subcarriers with an integer multiple being 12, and N being any one of the following numerical values: 2, 3, 4 or 6; and in the second mapping mode, the number and positions of the subcarriers mapped by the data signal and the demodulation reference signal are the same, and the data signal and the demodulation reference signal are mapped to subcarriers with an integer multiple being 12.
Description
Technical field [0001] The present invention relates to the field of communications, and more specifically, to a method and device for transmitting uplink data. Background technique [0002] Currently, a technology for transmitting uplink data is known, which carries demodulation reference signals and data signals in units of 12 consecutive subcarriers. For example, if the uplink data is small, there is a situation that the data signal with practical significance sent by the terminal device does not need to occupy all 12 subcarriers. [0003] However, in this case, in the prior art, the data signal is still carried in the unit of 12 consecutive subcarriers. For example, the terminal device still occupies the subcarrier that does not need to carry the above-mentioned data signal with practical significance, and uses the subcarrier Fill up the preset symbols. This part of the symbols increases the burden of the terminal equipment, causes interference to other terminal equipment, and...
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IPC IPC(8): H04L5/00
CPCH04L5/00
Inventor 唐浩唐臻飞
Owner HUAWEI TECH CO LTD