公开(公告)号：US10659268B2

公开(公告)日：2020-05-19

申请号：US16395889

申请日：2019-04-26

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Chi Gao ,  Li Wang ,  Lilei Wang ,  Hidetoshi Suzuki ,  Masayuki Hoshino

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04L5/14

Abstract: Provided are wireless communication methods and devices. In one embodiment, a wireless communication method performed by a wireless communication device comprises: transmitting a data packet repeatedly in multiple subframes including at least one normal subframe and at least one special subframe to another wireless communication device, wherein the available resources in the special subframe are different from that in the normal subframe, the data packet includes multiple modulated symbols which are divided into multiple modulated-symbol sets, in each subframe, each OFDM symbol is mapped by one of the modulated-symbol sets, and in every subframe, the modulated symbols in the same modulated-symbol set are mapped onto REs in one OFDM symbol in a fixed order. In another embodiment, multiple repetitions of the data packet are transmitted in each subframe, and in each special subframe, different repetitions are mapped onto REs with cyclic shift.

公开(公告)号：US10362607B2

公开(公告)日：2019-07-23

申请号：US15818612

申请日：2017-11-20

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Chi Gao ,  Hidetoshi Suzuki ,  Prateek Basu Mallick

IPC: H04W4/00 ,  H04W74/08 ,  H04W4/70 ,  H04W72/04 ,  H04W8/26 ,  H04W88/02 ,  H04W88/08

Abstract: Provided are wireless communication methods, an eNB and a UE. A wireless communication method with coverage enhancement performed by an eNB comprises transmitting one or more MAC RARs to one or more UEs in response to receiving one or more random access preambles (RA-preambles) from the one or more UEs, wherein the transmitting is able to be performed by a first manner in which the MAC RAR(s) in response to the RA-preamble(s) belonging to one RA-preamble set corresponding to one CE level are carried by a PDSCH which is scheduled by a first PDCCH scrambled by a set-specific RNTI, and the set-specific RNTI is related to the set index of the one RA-preamble set.

公开(公告)号：US10355829B2

公开(公告)日：2019-07-16

申请号：US15327634

申请日：2014-07-29

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Alexander Golitschek Edler von Elbwart ,  Tetsuya Yamamoto ,  Hidetoshi Suzuki ,  Chi Gao ,  Sujuan Feng ,  Prateek Basu Mallick

IPC: H04L1/08 ,  H04L1/18 ,  H04W72/04 ,  H04L1/16 ,  H04L5/00

Abstract: The invention relates to transmission and reception of data in a wireless communication system. In particular, the predetermined number of repetitions of the same data portion is transmitted over the wireless interface. The receiving device receives the repetitions, attempts their decoding and checks whether the decoding was successful. If the decoding was successful after the predetermined number of repetitions or less, a positive acknowledgement is generated. In addition, a feedback including a bundle size information is generated and transmitted. The bundle size information includes a number of repetitions, smaller or equal to the predetermined number, after which the decoding was successful. The feedback is transmitted to the data transmitting device which may adapt the predetermined number of repetitions accordingly. The invention enables efficient control of the number of repetitions applied which is particularly advantageous for coverage enhancement purposes.