Wireless communication method and wireless communication device

Abstract

The present application provides a wireless communication method, including: determining the length of the ZC sequence according to the number of resource blocks or subcarriers corresponding to the system bandwidth; determining the length of the ZC sequence according to the length of the ZC sequence and the number of resource blocks or subcarriers corresponding to the user allocated bandwidth A reference signal sequence; wherein, the reference signal sequence is included in an uplink reference signal, and the bandwidth allocated to the user is a part of the system bandwidth. According to the wireless communication method provided in this application, when different communication devices use the same system bandwidth for communication, the reference signal sequences used by them correspond to the same ZC sequence length, and the ZC sequence length is the number of resource blocks specific to the system bandwidth or The number of carriers is designed, and the generation of the reference signal sequence is related to its mapping position. Therefore, the wireless communication method provided by this application makes the reference signal sequences used by different communication devices have better mutual correlation.

Description

technical field [0001] The present application relates to the communication field, and in particular to a wireless communication method and a wireless communication device in a wireless communication system. Background technique [0002] In a wireless communication system, a reference signal (reference signal, RS), also called a pilot signal, is a predefined signal sent by a sending device to a receiving device on a predefined resource. The receiving device can obtain channel-related information according to the received reference signal, so as to complete channel estimation or channel measurement. The channel measurement result can be used for resource scheduling and link adaptation, and the channel estimation result can be used for the receiving device to demodulate the data. Generally, in order to accurately obtain channel related information, different reference signals need to be orthogonal. Usually, multiple reference signals that are orthogonal to each other can be ...

AI Technical Summary

Problems solved by technology

[0003] The frequency domain resources occupied by reference signals of different user equipment (UE) may partially overlap. In order to reduce the mutual interference caused by the partial overlapping of reference signals of different UEs, a method for sending reference signals is to generate reference signals and map them Position correlation, the reference signals sent by the UE are processed by cyclic shift (CS), so that the reference signals between different UEs are orthogonal, thereby eliminating the mutual interference of the reference signals of different UEs, however, according to the existing In the method of sending reference signals in the technology, the generation method of reference signals sent by different UEs has nothing to do with its mapping position, and the reference signals sent by UEs cannot be orthogonalized through cyclic shift, and the cross-correlation of partially overlapping reference signals is poor, which cannot satisfy Communication System Requirements

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