公开(公告)号：US20190305889A1

公开(公告)日：2019-10-03

申请号：US15939750

申请日：2018-03-29

Applicant: HUAWEI TECHNOLOGIES Co., LTD.

Inventor： YIQUN GE ,  HAMID SABER

IPC: H04L1/00

Abstract: Disabled input bit positions of an input bit vector that is to be encoded are determined based on non-contiguous subsets of consecutive coded bit positions that are to be punctured from a codeword of a polar code. The input bit vector is encoded according to the polar code to generate a codeword, by applying information bits to input bit positions of the input bit vector other than the disabled input bit positions. The non-contiguous subsets of consecutive coded bit positions are punctured from the codeword to generate a punctured codeword, and the punctured codeword is transmitted. In some embodiments, the non-contiguous subsets include a first subset that includes a first coded bit position and a second subset that includes a last coded bit position. The polar code could be a chained polar code, for example.

公开(公告)号：US20190268094A1

公开(公告)日：2019-08-29

申请号：US16225128

申请日：2018-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： YIQUN GE ,  HAMID SABER

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/29 ,  H03M13/09 ,  H03M13/00 ,  H04B17/336

Abstract: Methods and apparatuses for implementing error-correction in communication systems, particularly wireless communication systems. Input bits are encoded according to a chained generator matrix to generate a codeword, and the codeword is transmitted. The chained generator matrix includes a first subset of entries corresponding to a first subset of entries in a base generator matrix for a chained polar code, and a second subset of entries that are different from a second subset of entries in the base generator matrix. A chained generator matrix could be constructed, for example, by applying a chaining matrix to the second subset of entries in the base generator matrix, to produce the second subset of entries in the chained generator matrix.

公开(公告)号：US20240039603A1

公开(公告)日：2024-02-01

申请号：US18482874

申请日：2023-10-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： YIQUN GE ,  WUXIAN SHI ,  WEN TONG

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/0426

CPC classification number: H04B7/063 ,  H04B7/0486 ,  H04B7/0434

Abstract: According to the present disclosure, there are provided methods and devices for estimating a high-dimensional MIMO channel by expressing the MIMO channel in the form of a flow function to determine a change from an input state to an output state. This may be considered similar to a manner in which fluid dynamic problems are solved. Instead of using linearization to estimate all of the coefficients of a matrix representing a MIMO channel, a receiver may determine the MIMO channel rank by detecting leading modes in a subspace of the entire MIMO channel matrix.