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公开(公告)号：US20210368548A1
公开(公告)日：2021-11-25
申请号：US17391782
申请日：2021-08-02
发明人： Ghyslain Pelletier , Stephen E. Terry , Paul Marinier , Guodong Zhang , Peter S. Wang , Jin Wang , Shankar Somasundaram , Jean-Louis Gauvreau , Charles A. Dennean , Erdem Bala , Afshin Haghighat
摘要： Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers.
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公开(公告)号：US20210297225A1
公开(公告)日：2021-09-23
申请号：US17340933
申请日：2021-06-07
摘要： A wireless transmit/receive unit (WTRU) may receive one or more physical downlink shared channel (PDSCH) transmissions and each PDSCH transmission may be associated with downlink control information (DCI) and a group of PDSCH transmissions. Further, the WTRU may determine a first group or a second group based on an indication received in DCI associated with at least one of the PDSCH transmissions. Then, the WTRU may generate hybrid automatic repeat request (HARQ)-acknowledgment (ACK) feedback for data received in one or more PDSCH transmissions associated with the determined group. Moreover, the WTRU may transmit the HARQ-ACK feedback. In an example, the DCI which includes the indication may schedule a plurality of PDSCH transmissions included in the determined group. In another example, the DCI which includes the indication may further include a first codepoint mapped to the first group or a second codepoint mapped to the second group.
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公开(公告)号：US11083020B2
公开(公告)日：2021-08-03
申请号：US15667998
申请日：2017-08-03
发明人： Ghyslain Pelletier , Stephen E. Terry , Paul Marinier , Guodong Zhang , Peter S. Wang , Jin Wang , Shankar Somasundaram , Jean-Louis Gauvreau , Charles A. Dennean , Erdem Bala , Afshin Haghighat
摘要： Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers.
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44.发明授权公开(公告)号：US11083009B2
公开(公告)日：2021-08-03
申请号：US16748394
申请日：2020-01-21
发明人： Paul Marinier , Diana Pani , Ghyslain Pelletier , Marian Rudolf
IPC分类号： H04W74/00 , H04W88/06 , H04B7/06 , H04L1/18 , H04L5/00 , H04W72/04 , H04L1/00 , H04L1/16 , H04W12/10 , H04W24/10 , H04W72/12
摘要： A method and apparatus for sending uplink control information by a multi-mode wireless transmit/receive unit (WTRU) capable of operating on multiple component carriers of a plurality of radio access technologies (RATs) for multi-RAT operation are disclosed. The WTRU may generate uplink control information (UCI) pertaining to a first RAT and a second RAT, wherein the UCI may include a first plurality of hybrid automatic repeat request acknowledgements (HARQ-ACKs) pertaining to a plurality of downlink (DL) transmissions of the first RAT and a second plurality of HARQ-ACKs pertaining to a plurality of DL transmissions of the second RAT. The WTRU may multiplex at least part of the generated UCI pertaining to the first RAT and at least part of the generated UCI pertaining to the second RAT onto a physical channel on a component carrier of the second RAT.
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公开(公告)号：US11032053B2
公开(公告)日：2021-06-08
申请号：US16827022
申请日：2020-03-23
摘要： A wireless transmit/receive unit (WTRU) may receive a plurality of transport blocks over a plurality of configured carriers. The WTRU may generate hybrid automatic repeat request (HARQ)-acknowledgment (ACK) feedback for the plurality of transport blocks, channel state information (CSI) feedback for at least one of the plurality of configured carriers, and a cyclic redundancy check (CRC). Further, the WTRU may generate a feedback message that includes a number of HARQ-ACK feedback bits for the HARQ-ACK feedback, a number of CSI feedback bits for the CSI feedback, and a number of CRC bits for the CRC. The WTRU may then determine a power to be used for a Physical Uplink Control Channel (PUCCH) transmission based on the number of HARQ-ACK feedback bits, the number of CSI feedback bits, and the number of CRC bits. Moreover, the WTRU may transmit the feedback message in the PUCCH transmission at the determined power.
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公开(公告)号：US10912007B2
公开(公告)日：2021-02-02
申请号：US16414549
申请日：2019-05-16
发明人： Martino M. Freda , Diana Pani , Benoit Pelletier , Paul Marinier
摘要： Systems, methods, and instrumentalities are disclosed for a WTRU to act as a mobile relay, the method comprising the WTRU connecting to the network, the WTRU receiving a message from the network indicating that the WTRU is to act as a mobile relay for one or more devices outside of the coverage of the network, the WTRU discovering one or more devices outside of the coverage of the network, and the WTRU receiving a message from the out-of-coverage device that indicates that the out-of-coverage device has selected the WTRU to act as a mobile relay.
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公开(公告)号：US20210014877A1
公开(公告)日：2021-01-14
申请号：US17019928
申请日：2020-09-14
发明人： Patrick Tooher , Paul Marinier , Marian Rudolf
摘要： Methods and systems are disclosed for reducing control signaling in uplink transmissions. A device, such as a wireless transmit/receive unit, may determine to use a demodulation reference signal (DM-RS) transmission schedule out of a plurality of DM-RS transmission schedules. The DM-RS transmission schedule may be characterized by a DM-RS transmission being mapped to a single orthogonal frequency-division multiplexing (OFDM) symbol per subframe of a data stream. The DM-RS transmission schedule may be characterized by a DM-RS transmission being mapped to a first subset of subcarriers of an OFDM symbol of a subframe of a data stream and Physical Uplink Shared Channel (PUSCH) transmission or Physical Uplink Control Channel (PUCCH) control information being mapped to a second set of subcarriers of the OFDM symbol. The first set of subcarriers may be different than the second set of subcarriers. The data stream may be transmitted according to the DM-RS transmission schedule.
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公开(公告)号：US10785012B2
公开(公告)日：2020-09-22
申请号：US15547250
申请日：2016-01-28
摘要： Techniques for efficient downlink control with a large number of carriers and/or TTIs are described. Techniques for blind decoding reduction may include making the search space and/or aggregation level of candidates for a first PDCCH/E-PDCCH associated with the characteristics of a second received PDCCH/E-PDCCH. Techniques may include embedding DCI for a set of serving cells and/or TTIs in a PDSCH. DCI for a set of serving cells and/or TTIs may be included in single PDCCH/E-PDCCH. To reduce overhead, carrier indicator field interpretation may be associated with the serving cell or TTI from which the PDCCH/E-PDCCH containing the downlink control information is received, or the group of cells or TTIs to which the PDCCH/E-PDCCH containing the downlink control information belongs.
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49.发明申请公开(公告)号：US20200275263A1
公开(公告)日：2020-08-27
申请号：US16874366
申请日：2020-05-14
摘要： A method may comprise transmitting using a first uplink carrier and receiving a signal using a first downlink carrier. The signal may include a message indicating activation of a second uplink carrier. A method may further comprise initiating, based on the message, a timer associated with deactivation of the second uplink carrier. The method may further comprise transmitting using the second uplink carrier activated based on the message and deactivating the second uplink carrier on a condition that expiration of the timer is detected.
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公开(公告)号：US10743293B2
公开(公告)日：2020-08-11
申请号：US16382754
申请日：2019-04-12
发明人： Marian Rudolf , Benoit Pelletier , Diana Pani , Paul Marinier , Samian Kaur , Martino M. Freda
摘要： Systems, methods, and instrumentalities are disclosed to determine access control and channel and signaling priority. A wireless transmit/receive unit (WTRU) may comprise a processor configured, at least in part, to determine device-to-device (D2D) data to be transmitted. The WTRU may determine if the D2D data may be transmitted. The WTRU may determine available scheduling assignment (SA) resources used for priority based D2D data signals. The WTRU may select one or more available SA resources used for priority based D2D data signals. The WTRU may transmit the D2D data, wherein the D2D data may be transmitted on the selected SA resources.
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