公开(公告)号：EP3490320A1

公开(公告)日：2019-05-29

申请号：EP19151370.4

申请日：2012-09-30

申请人： Interdigital Patent Holdings, Inc.

发明人： Lee, Moon-il ,  Rudolf, Marian ,  Wang, Peter S. ,  Nayeb Nazar, Shahrokh ,  Stern- Berkowitz, Janet A. ,  Sadeghi, Pouriya ,  Tsai, Allan Y. ,  Shin, Sung-Hyuk

IPC分类号： H04W72/04 ,  H04W74/08 ,  H04L1/00 ,  H04L1/18

摘要： Systems and/or methods for supporting communications at a reduced bandwidth with a full bandwidth network such as a long-term evolution (LTE) network may be disclosed. For example, inband assignments such as downlink assignments and/or uplink grants may be provided and/or received and transmissions may be monitored and/or decoded based on the inband assignment. Additionally, information (e.g. a definition or configuration) associated with an ePDCCH may be provided and/or received and ePD -CCH resources may be monitored and/or decoded based on such information. An indication for support of a reduced bandwidth by the full bandwidth network may also be provided and/or received and control channels in the reduced or narrow bandwidth may be monitored and/or decoded based on the indication. A PRACH preamble and/or a multi-type sub frame definition may also be provided and/or used for support of such a reduced bandwidth.

公开(公告)号：EP4246848A2

公开(公告)日：2023-09-20

申请号：EP23187626.9

申请日：2012-09-30

申请人： InterDigital Patent Holdings, Inc.

发明人： Lee, Moon-il ,  Marian, Rudolf ,  Wang, Peter S. ,  Nayeb Nazar, Shahrokh ,  Stern- Berkowitz, Janet A. ,  Sadeghi, Pouriya ,  Tsai, Allan Y. ,  Shin, Sung-Hyuk

IPC分类号： H04L1/1829

摘要： Systems and/or methods for supporting communications at a reduced bandwidth with a full bandwidth network such as a long-term evolution (LTE) network may be disclosed. For example, inband assignments such as downlink assignments and/or uplink grants may be provided and/or received and transmissions may be monitored and/or decoded based on the inband assignment. Additionally, information (e.g. a definition or configuration) associated with an ePDCCH may be provided and/or received and ePD -CCH resources may be monitored and/or decoded based on such information. An indication for support of a reduced bandwidth by the full bandwidth network may also be provided and/or received and control channels in the reduced or narrow bandwidth may be monitored and/or decoded based on the indication. A PRACH preamble and/or a multi-type sub frame definition may also be provided and/or used for support of such a reduced bandwidth.

公开(公告)号：EP4246848A3

公开(公告)日：2023-12-20

申请号：EP23187626.9

申请日：2012-09-30

申请人： InterDigital Patent Holdings, Inc.

发明人： Lee, Moon-il ,  Marian, Rudolf ,  Wang, Peter S. ,  Nayeb Nazar, Shahrokh ,  Stern- Berkowitz, Janet A. ,  Sadeghi, Pouriya ,  Tsai, Allan Y. ,  Shin, Sung-Hyuk

IPC分类号： H04L1/00 ,  H04L1/1829 ,  H04W74/08 ,  H04W72/23 ,  H04W72/51

摘要： Systems and/or methods for supporting communications at a reduced bandwidth with a full bandwidth network such as a long-term evolution (LTE) network may be disclosed. For example, inband assignments such as downlink assignments and/or uplink grants may be provided and/or received and transmissions may be monitored and/or decoded based on the inband assignment. Additionally, information (e.g. a definition or configuration) associated with an ePDCCH may be provided and/or received and ePD -CCH resources may be monitored and/or decoded based on such information. An indication for support of a reduced bandwidth by the full bandwidth network may also be provided and/or received and control channels in the reduced or narrow bandwidth may be monitored and/or decoded based on the indication. A PRACH preamble and/or a multi-type sub frame definition may also be provided and/or used for support of such a reduced bandwidth.

公开(公告)号：EP3261265A1

公开(公告)日：2017-12-27

申请号：EP17186117.2

申请日：2012-08-10

申请人： InterDigital Patent Holdings, Inc.

发明人： Nazar, Shahrokh Nayeb ,  Lee, Moon-il ,  Olesen, Robert L. ,  Raghavan, Manasa ,  Iyer, Lakshmi, R. ,  Pelletier, Benoit

IPC分类号： H04B7/04

CPC分类号： H04B7/0452 ,  H04W72/04

摘要： A wireless transmit/receive unit (WTRU) receives a downlink transmission from an eNodeB including a plurality of spatial layers transmitted to a plurality of WTRUs paired for multiuser MIMO. The WTRU decodes the downlink transmission based on a corresponding WTRU-specific reference signal. WTRU-specific reference signals are multiplexed using a frequency and code division multiplexing. WTRU-specific reference signals for different sub-group of antenna ports are multiplexed onto different subcarriers in a frequency domain and the WTRU-specific reference signals of the same sub-group of antennas ports are multiplied by an orthogonal cover code. The resource elements used for the WTRU-specific reference signals on antenna ports in one subgroup may be muted on antenna ports in another sub-group. A WTRU may transmit the uplink demodulation reference signal without precoding. The number of resource blocks allocated for the demodulation reference signal may be greater than the number of resource blocks allocated for the payload.

摘要翻译： 无线发射/接收单元（WTRU）从eNodeB接收下行链路传输，该下行链路传输包括发射到为多用户MIMO配对的多个WTRU的多个空间层。 WTRU基于对应的WTRU特定的参考信号来解码下行链路传输。 WTRU特定参考信号使用频率和码分复用进行复用。 用于不同子组天线端口的WTRU特定参考信号被复用到频域中的不同子载波上，并且相同子天线端口组的WTRU特定参考信号被正交覆盖码相乘。 用于一个子组中的天线端口上的WTRU特定参考信号的资源单元可以在另一个子组中的天线端口上被静音。 WTRU可以在没有预编码的情况下发送上行链路解调参考信号。 分配给解调参考信号的资源块的数量可以大于为有效载荷分配的资源块的数量。