PRECODING VECTOR INDICATING AND DETERMINING METHOD AND COMMUNICATIONS APPARATUS

• Main Authors: BI, Xiaoyan, JIN, Huangping, WANG, Xiaohan
• Format: Patent
• Language: English
• Published: 20.10.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

Provided are a method for indicating and determining a pre-coding vector, and a communication apparatus. The method comprises: a terminal device generating first indication information and sending same to a network device, wherein one or more frequency domain vectors comprise a frequency domain vector reported for each frequency domain unit group of R frequency domain unit groups, and one or more weighting coefficients comprise a weighting coefficient reported for each frequency domain unit group of the R frequency domain unit groups; a frequency domain vector and a weighting coefficient reported for an rth frequency domain unit group of the R frequency domain unit groups are used for constructing a pre-coding vector corresponding to one or more frequency domain units in the rth frequency domain unit group; each frequency domain unit group of the R frequency domain unit groups comprises one or more frequency domain units; and r is greater than or equal to 1 and less than or equal to 2, R is greater than or equal to 2, and r and R are both integers. Therefore, different frequency domain unit groups can be compressed by means of different frequency domain vectors, thereby facilitating the obtaining of a higher feedback precision and a higher compromised efficiency of a feedback overhead and the feedback precision.