US Patent No. 9,484,995

METHOD, SYSTEM, AND DEVICE FOR TRANSMITTING CODING INSTRUCTION INFORMATION AND FOR DETERMINING PRE-CODING MATRIX


Patent No. 9,484,995
Issue Date November 01,†2016
Title Method, System, And Device For Transmitting Coding Instruction Information And For Determining Pre-coding Matrix
Inventorship Qiubin Gao, Beijing (CN)
Assignee CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY, Beijing (CN)

Claim of US Patent No. 9,484,995

1. A method for transmitting a coding indicator, the method comprising:
determining, by a user equipment, a first pre-coding indicator, a second pre-coding indicator and a third pre-coding indicator,
wherein the first pre-coding indicator, the second pre-coding indicator and the third pre-coding indicator correspond to a
pre-coding matrix which is equal to a matrix as a function of a first component pre-coding matrix, a second component pre-coding
matrix and a third component pre-coding matrix, the first component pre-coding matrix is a block diagonal matrix, and the
third component pre-coding matrix is composed of weighted column selection vectors, and in each of the weighted column selection
vectors only P elements are non-zero with P being a positive integer; and

transmitting, by the user equipment, the first pre-coding indicator, the second pre-coding indicator and the third pre-coding
indicator to the network side;

wherein the third component pre-coding matrix is a product of a (2MHMV)√ór-dimension matrix with a power normalization coefficient, wherein r represents the number of columns in the pre-coding
matrix; and

the third component pre-coding matrix is:

wherein W3 represents the third component pre-coding matrix; eki represents a column vector with a length of MHMV with the ki-th element being 1 and all the other elements being 0; and ?i represents a complex scalar with a modulus being 1, wherein MH and MV represent positive integers, and M represent the power normalization coefficient.