公开(公告)号：HK1210359A1

公开(公告)日：2016-04-15

申请号：HK15110934

申请日：2013-04-29

Applicant: QUALCOMM INC

Inventor： YOO TAESANG T ,  LUO TAO T ,  LUO XILIANG X

IPC: H04W20090101

公开(公告)号：HK1211154A1

公开(公告)日：2016-05-13

申请号：HK15111922

申请日：2015-12-03

Applicant: QUALCOMM INC

Inventor： LUO XILIANG X ,  CHEN WANSHI W ,  ZHANG XIAOXIA ,  GAAL PETER P ,  MONTOJO JUAN J

IPC: H04L20060101

Abstract: Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS index can be received from a base station in downlink control information (DCI) or similar signaling. Based at least in part on the CS index, CS values for the plurality of DM-RS can be determined. In addition, OCC can be explicitly signaled or similarly determined from the CS index and/or a configured CS value received from a higher layer. In addition, controlling assignment of CS indices and/or OCC can facilitate providing orthogonality for communications from paired devices in multiuser MIMO.

公开(公告)号：HK1176197A1

公开(公告)日：2013-07-19

申请号：HK13103730

申请日：2013-03-25

Applicant: QUALCOMM INC

Inventor： LUO XILIANG X ,  CHEN WANSHI W ,  ZHANG XIAOXIA ,  GAAL PETER P ,  MONTOJO JUAN J

IPC: H04L20060101 ,  H04J20060101

Abstract: Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS index can be received from a base station in downlink control information (DCI) or similar signaling. Based at least in part on the CS index, CS values for the plurality of DM-RS can be determined. In addition, OCC can be explicitly signaled or similarly determined from the CS index and/or a configured CS value received from a higher layer. In addition, controlling assignment of CS indices and/or OCC can facilitate providing orthogonality for communications from paired devices in multiuser MIMO.

公开(公告)号：HK1220823A1

公开(公告)日：2017-05-12

申请号：HK16108719

申请日：2012-05-22

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI W ,  MONTOJO JUAN J ,  LUO XILIANG X ,  ZHANG XIAOXIA X

IPC: H04L20060101

公开(公告)号：HK1178338A1

公开(公告)日：2013-09-06

申请号：HK13105194

申请日：2013-04-29

Applicant: QUALCOMM INC

Inventor： YOO TAESANG T ,  LUO TAO T ,  LUO XILIANG X

IPC: H04L20060101 ,  H04B20060101