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Uplink pilot design method, transmitting end, and receiving end of a narrowband communication system

A technology of narrowband communication and pilot design, which is applied in the field of receiving end, transmitting end, and uplink pilot design, which can solve the problem that the frequency difference cannot be obtained by estimating the frequency difference of a single column reference signal, and achieve the effect of accurately calculating the frequency deviation

Inactive Publication Date: 2021-08-06
POTEVIO INFORMATION TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The embodiment of the present invention provides an uplink pilot design method of a narrowband communication system, a transmitting end, and a receiving end to solve the problem that the accurate frequency difference cannot be obtained by estimating the frequency difference by using a single-column reference signal in the prior art

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  • Uplink pilot design method, transmitting end, and receiving end of a narrowband communication system
  • Uplink pilot design method, transmitting end, and receiving end of a narrowband communication system

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Embodiment Construction

[0042] 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.

[0043] figure 1 It is a flowchart of an uplink pilot design method of a narrowband communication system according to an embodiment of the present invention, figure 2 It is a schematic diagram of the time-frequency resource block structure of the embodiment of the present invention, such as figure 1 As shown, the method includes:

[0044] Step ...

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Abstract

Embodiments of the present invention provide an uplink pilot design method, a sending end, and a receiving end of a narrowband communication system. The method includes acquiring information of at least one time-frequency resource block from a receiving end; obtaining a corresponding reference signal sequence according to information of each time-frequency resource block; wherein, the reference signal sequence includes a preset number of reference signals; In the reference signal sequence, starting from the second reference signal, the corresponding reference signal is reset to 0 every other sequence element to obtain a new reference signal sequence; the new reference signal sequence is placed in the time-frequency resource block sent to the receiving end, so that the receiving end obtains the frequency offset according to the new reference signal sequence, and the transmitting end provided by the embodiment of the present invention obtains the new reference signal sequence by updating the calculated reference signal sequence And the allocated time-frequency resource block is sent to the receiving end, so that the receiving end can calculate the frequency offset more accurately through the new reference signal sequence.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of wireless communication, and in particular to a method for designing an uplink pilot in a narrowband communication system, a sending end, and a receiving end. Background technique [0002] The original 230 narrowband communication system is a single-subband system. Each uplink subframe has only one column of reference signals, and three uplink subframes are bound and scheduled. There can be three columns of reference signals. Each user has three columns of reference signals within 25ms of a wireless frame. It can be utilized that while obtaining the 3-column channel estimation results, the receiving end can estimate the frequency offset by using the cumulative phase difference of the previous and subsequent reference sequences while estimating the channel. After the introduction of multi-subband technology, uplink subframes are required to support single-subframe independent schedulin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L27/00
CPCH04L5/0048H04L27/0014H04L2027/0026
Inventor 钟勤
Owner POTEVIO INFORMATION TECH CO LTD
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