Data transmission method and apparatus, first communication node, and second communication node
AssigneeZte Corporation
InventorsZhigang Li, Weimin Li, Zhifeng Yuan, Yihua Ma
Life of this patent
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Abstract
A data transmission method and apparatus, a first communication node, and a second communication node are provided. The method includes: acquiring data, wherein the data includes information of N pilots; and sending the data and the N pilots; wherein N is an integer greater than or equal to 1. The solution can avoid the problems of misjudging detection result and interference cancellation error of the receiver caused by the channel correlation between the users, and improve the detection performance of other users, such that the performance of grant-free transmission can be improved.
Claims15
A data transmission method, applied to a first communication node, and comprising:
- acquiring data, wherein the data comprises service data and information of N pilots, wherein the information of the N pilots comprises pilot identification information of the N pilots, and the pilot identification information is represented by a pilot index;
- and
- mapping the data and the N pilots onto a transmission resource to sending the data and the N pilots;
- wherein N is an integer greater than or equal to 1.
A data reception method, applied to a second communication node, and comprising:
- acquiring received symbols from a transmission resource, detecting the received symbols and identifying N pilots mapped onto the transmission resource by a first communication node;
- decoding, according to the identified N pilots, data mapped onto the transmission resource by the first communication node, wherein the data comprises service data and information of N pilots sent by the first communication node, the information of the N pilots comprises pilot identification information of the N pilots;
- acquiring the information of the N pilots from the data;
- and
- performing interference cancellation according to the information of the N pilots,
- wherein N is an integer greater than or equal to 1.
Dependencies are inferred from the claim text.