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公开(公告)号：US10123314B2
公开(公告)日：2018-11-06
申请号：US14851565
申请日：2015-09-11
发明人： Jae Hyuk Jang , Soeng Hun Kim , Boon Loong Ng , Gert-Jan Van Lieshout , Kyeong In Jeong , Joon Young Cho
摘要： A method for activating/deactivating secondary carriers of a User Equipment (UE) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation Control Element (CE) in a first sub-frame from a Base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation CE indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame.
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公开(公告)号：US10110286B2
公开(公告)日：2018-10-23
申请号：US15080304
申请日：2016-03-24
发明人： Eko Onggosanusi , Md. Saifur Rahman , Boon Loong Ng , Young-Han Nam , Hyoungju Ji , Hoondong Noh
IPC分类号： H04B7/04 , H04B7/06 , H04B7/0456
摘要： Methods and apparatuses for codebook design and signaling are provided. A user equipment (UE) apparatus for codebook design and signaling includes a processor and a transceiver operably connected to the processor. The transceiver is configured to receive configuration information for a channel state information (CSI) process, receive configuration information for a CSI reference signal (CSI-RS) resource; receive configuration information for a MIMO type; and receive a plurality of codebook parameters when the MIMO type is non-precoded. A base station (BS) apparatus for codebook design and signaling includes a transceiver and a processor operably connected to the transceiver. The processor is configured to configure a UE with a CSI process and a CSI-RS resource, configure the UE with a MIMO type, and cause the transceiver to transmit configuration information for the CSI process, the CSI-RS resource, and the MIMO type to the UE.
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公开(公告)号：US10091659B2
公开(公告)日：2018-10-02
申请号：US15146859
申请日：2016-05-04
发明人： Boon Loong Ng , Thomas David Novlan
摘要： An apparatus for user equipment (UE). The UE comprises a transceiver configured to receive an indication of a partial subframe configuration over an unlicensed spectrum in a licensed assisted access (LAA) cell. The UE further includes at least one processor configured to determine a resource element (RE) mapping rule based on the indication of the partial subframe configuration; and identify an RE position of at least one reference signal to be received from the eNB based on the RE mapping rule.
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公开(公告)号：US10085246B2
公开(公告)日：2018-09-25
申请号：US15790675
申请日：2017-10-23
IPC分类号： H04W72/04 , H04W76/36 , H04W52/28 , H04W74/08 , H04W24/10 , H04W24/02 , H04W52/36 , H04L1/00 , H04L5/00 , H04W52/34 , H04W76/11 , H04W52/14 , H04W52/38 , H04W72/00 , H04W72/12
摘要： A method and an apparatus for performing random access and uplink transmission of a User Equipment (UE) supporting Carrier Aggregation (CA) are provided. The method includes determining whether a Scheduling Request (SR) is pending, determining, when the SR is pending, whether an uplink transmission resource is available in a current Transmission Time Interval (TTI), determining, when the uplink transmission resource is not available, whether a Physical Uplink Control Channel (PUCCH) resource is configured for transmission of the SR, and initiating, when the PUCCH resource is not configured, a random access process in a primary cell. The random access method and apparatus of the present invention is advantageous to reduce the waste of transmission resources.
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公开(公告)号：US10020860B2
公开(公告)日：2018-07-10
申请号：US14954838
申请日：2015-11-30
发明人： Eko Onggosanusi , Boon Loong Ng , Young-Han Nam , Hee Don Gha
IPC分类号： H04B7/00 , H04B7/06 , H04B7/0456
CPC分类号： H04B7/0645 , H04B7/0478 , H04B7/0482 , H04W72/046
摘要： User equipment (UE) is configured to receive two types of channel state information (CSI) reference signals (CSI-RS), the first containing more antenna ports and measured less often than the second. A first CSI report is based on first type CSI-RS and a second CSI report on the second type CSI-RS. The second type CSI-RS is at least partially precoded in response to the first CSI report, is precoded for the specific UE, and is transmitted more often than the first type CSI-RS, while the first type CSI-RS is not precoded. The first CSI report contains a first precoding matrix indicator (PMI) parameter and the second CSI report contains only a second PMI parameter of a two-PMI codebook, where the first PMI parameter is a long-term and wideband PMI. The first PMI is derived from measuring the first type CSI-RS in a plurality of subframes and resource blocks.
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公开(公告)号：US20180167979A1
公开(公告)日：2018-06-14
申请号：US15826421
申请日：2017-11-29
发明人： Li Guo , Young-Han Nam , Boon Loong Ng
CPC分类号： H04W74/0833 , H04W16/28 , H04W48/12 , H04W72/0446 , H04W72/0453 , H04W74/004 , H04W74/006 , H04W74/008
摘要： A method of user equipment (UE) for random access operation in a wireless communication system is provided. The method comprises receiving, from a base station (BS), random access channel (RACH) configuration information including RACH chunk information corresponding to at least one antenna beam including a beam identifier (ID), determining a RACH chunk based on the RACH configuration information received from the BS, transmitting, to the BS, a RACH preamble on the determined RACH chunk according to the RACH configuration information associated with the beam ID, and receiving, from the BS, a RACH response (RAR) corresponding to the transmitted RACH preamble and a downlink channel for a RAR transmission, wherein a random access-radio network temporary identification (RA-RNTI) is calculated based on an index of a slot and an index of the RACH chunk on which the RACH preamble is transmitted.
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公开(公告)号：US09974066B2
公开(公告)日：2018-05-15
申请号：US14266024
申请日：2014-04-30
CPC分类号： H04W72/042 , H04W28/06 , H04W56/0015 , H04W56/002 , H04W72/0413 , H04W72/082 , H04W72/121 , H04W76/14 , H04W92/18
摘要： A method includes configuring one or multiple pools of Device-to-Device (D2D) communication resources by an eNodeB (eNB). The method also includes signaling of the configured pool(s) of D2D communication resources by the eNB to a first User Equipment (UE) and a plurality of UEs using a common broadcast channel; and sending a request for one or multiple D2D communication resources to an eNB by the first UE configured to transmit D2D messages. The method also includes determining one or multiple resources for D2D communication by an eNB for the first UE. The method also includes communicating D2D resource allocation information to the first UE. The method also includes communicating D2D resource allocation information by the first UE to multiple UEs; and transmitting D2D data by the first UE to multiple UEs. Methods for configuring and signaling D2D communication resources by relay or out-of-coverage UEs are also provided.
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公开(公告)号：US20180115996A1
公开(公告)日：2018-04-26
申请号：US15789770
申请日：2017-10-20
发明人： Hongbo Si , Boon Loong Ng
IPC分类号： H04W74/08
CPC分类号： H04W74/0816 , H04W74/0808
摘要： A method of a transmit apparatus for a directional listen-before-talk (LBT) operation in a wireless communication system. The method comprising sensing a channel for an interval comprising at least one clear channel assessment (CCA) slot, determining whether a state of the sensed channel for the interval is an idle state based on a configurable directional energy threshold, sensing an additional number of CCA slots when the state of the sensed channel is determined as the idle state based on the configurable directional energy threshold, and transmitting, to a receive apparatus, at least one of discovery signal or data signal when states of the sensed additional number of CCA slots are determined as the idle state based on the configurable directional energy threshold.
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公开(公告)号：US09917676B2
公开(公告)日：2018-03-13
申请号：US14728666
申请日：2015-06-02
CPC分类号： H04L1/1812 , H04L1/1822 , H04L1/1861 , H04L1/1887 , H04L1/1893 , H04L1/1896 , H04W72/0453 , H04W72/082 , H04W84/042
摘要： A user equipment (UE) is configured to perform a Hybrid Automatic Repeat Request (HARQ) in an un-licensed system. The UE includes at least one antenna configured to communicate with a base station. The UE also includes processing circuitry. The processing circuitry is configured to: send and receive data through the at least one antenna, in response to failing to decode a transport block transmitted by a first downlink carrier, transmit a negative acknowledgement message to the base station, and receive a re-transmission of the transport block from a second downlink carrier. The first downlink carrier comprises a unlicensed spectrum carrier and the second downlink carrier is different from the first downlink carrier.
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公开(公告)号：US09900844B2
公开(公告)日：2018-02-20
申请号：US14591756
申请日：2015-01-07
CPC分类号： H04W52/146 , H04L5/1469 , H04W52/281 , H04W52/34 , H04W52/367 , H04W88/08
摘要： Methods and apparatus are provided for a User Equipment (UE) configured by a Master enhanced NodeB (MeNB) for operation with dual connectivity to a Secondary eNB (SeNB) to determine a power for transmission to the MeNB and a power for transmission to the SeNB in a subframe when a total power the UE determines according to power control processes for transmission to the MeNB and for transmission to the SeNB exceeds a maximum transmission power in the subframe. Methods and apparatus are also provided for the MeNB to select one or more antenna ports the UE uses to transmit to the MeNB and inform the selected antenna ports to the UE.
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