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381.发明授权公开(公告)号：US10194424B2
公开(公告)日：2019-01-29
申请号：US14618738
申请日：2015-02-10
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Aleksandar Damnjanovic , Durga Prasad Malladi , Hao Xu , Peter Gaal , Yongbin Wei , Tao Luo
Abstract: Techniques are described for wireless communication. A first method includes identifying a first interval for an uplink transmission in a shared radio frequency spectrum band; identifying a second interval for the uplink transmission; comparing the first interval with the second interval; and determining uplink resources to use for the uplink transmission based at least in part on the comparison of the first interval with the second interval. A second method includes transmitting one or more assignments of uplink resources to use for an uplink transmission in a shared radio frequency spectrum band; detecting a duration of the uplink transmission; and identifying uplink resources used for the uplink transmission based at least in part on the detecting.
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公开(公告)号：US10182376B2
公开(公告)日：2019-01-15
申请号：US15109596
申请日：2015-02-10
Applicant: QUALCOMM Incorporated
Inventor： Xipeng Zhu , Chao Wei , Wanshi Chen , Peter Gaal , Hao Xu
Abstract: Techniques for handover into eIMTA enabled cells are disclosed. In an aspect, a target cell reconfigures RRC connection with a UE after completed handover to enable eIMTA and/or CoMP for the UE. In another aspect, a target cell includes eIMTA configuration information in a handover command to a UE. In another aspect, the target cell may estimate a virtual cell identity to generate the eIMTA configuration information and delay scheduling transmissions to the UE by flexible subframes until after handover is complete and the correct eIMTA configuration information confirmed by measurement or else corrected by RRC connection reconfiguration. In other aspects, the target cell may determine the correct virtual cell identity before handover, either by measuring SRS of the UE, or by receiving information in a handover request indicating results of CSI-RS measurement, by the UE, of virtual cells of the target cell.
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公开(公告)号：US10172015B2
公开(公告)日：2019-01-01
申请号：US15495867
申请日：2017-04-24
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Peter Gaal , Hao Xu
IPC: H04W16/18 , H04W72/04 , H04W72/08 , H04L5/02 , H04W16/26 , H04W48/08 , H04L1/08 , H04B7/06 , H04L1/18
Abstract: Methods, systems, and devices are described for coverage enhancement in a wireless communication system. A base station may select different coverage enhancement techniques for different channels, and transmit the channels using the selected coverage enhancement techniques. Examples of coverage enhancement techniques that may be selected include repetition within subframes, repetition across different subframes, power boosting, and spatial multiplexing. These and other techniques may be used alone or in combination. In some examples, a user equipment (UE) may determine a coverage enhancement need and may monitor a control channel accordingly.
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公开(公告)号：US10165536B2
公开(公告)日：2018-12-25
申请号：US15184977
申请日：2016-06-16
Applicant: QUALCOMM Incorporated
Inventor： Michael Mao Wang , Hao Xu , Peter Gaal , Wanshi Chen , Yongbin Wei
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a set of non-overlapping periodic intervals for monitoring a synchronization signal, which may be composed of or may include a repeated sequence; and the UE may identify possible timing structure (e.g., subframe, slot, etc.) boundaries using the intervals. The UE may then determine that one of the possible boundaries is a boundary using a second synchronization signal. For instance, the UE may perform a cumulative correlation during each of a series of correlation periods corresponding to the periodic intervals. Each of the cumulative correlations may contain multiple coherent correlations associated with the sequence repetitions. From the cumulative correlations, the UE may identify possible boundaries. The UE may perform a secondary correlation based on a second synchronization signal for each possible boundary in order to determine the system timing.
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385.发明申请公开(公告)号：US20180367284A1
公开(公告)日：2018-12-20
申请号：US15980571
申请日：2018-05-15
Applicant: QUALCOMM Incorporated
Inventor： Yi Huang , Xiaoxia Zhang , Renqiu Wang , Hao Xu , Peter Gaal , Seyong Park , Sony Akkarakaran
CPC classification number: H04L5/0055 , H04L1/1614 , H04L1/1664 , H04L1/1671 , H04L5/0051 , H04L27/2613 , H04W72/0413
Abstract: Techniques described herein assist with indicating whether ACK/NACK signaling is present in an uplink transmission, thereby enhancing performance by permitting use of rate matching while reducing decoding errors. For example, a user equipment may determine whether ACK/NACK signaling is to be included in an uplink transmission in a portion of uplink resources allocated for a data channel, may generate a reference signal that indicates whether the ACK/NACK signaling is present in the uplink transmission, and may transmit the reference signal.
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Patent Agency Ranking
公开(公告)号：US20180359711A1
公开(公告)日：2018-12-13
申请号：US16002928
申请日：2018-06-07
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Yi Huang , Peter Gaal , Xiao Feng Wang , Tao Luo , Hao Xu
CPC classification number: H04W52/325 , H04W52/146 , H04W52/242 , H04W52/267 , H04W52/362 , H04W52/38 , H04W52/42 , H04W52/48
Abstract: Methods, systems, and devices for power control in New Radio (NR) systems are described. In one example, a user equipment (UE) may determine a transmit power for a control channel based on an effective code rate of control information to be transmitted in the control channel. In another example, the UE may be configured to use a different transmit power for repeated transmissions of control information in a control channel. In yet another example, the UE may be configured to determine a transmit power for a transmission in a time interval or scale a transmission in a time interval based on a priority of the transmission relative to other transmissions scheduled in the time interval. In yet another example, the UE may be configured to determine respective transmit powers for uplink transmissions multiplexed differently using different open-loop parameters.
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公开(公告)号：US10154424B2
公开(公告)日：2018-12-11
申请号：US14997665
申请日：2016-01-18
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Hao Xu , Peter Gaal
Abstract: Methods and systems are disclosed for determining channel state information (CSI) when received uplink grants occupy a plurality of subframes and include a transmission time interval (TTI) bundle. Based at least in part on a configuration of the received TTI bundle, one or more subframes may be identified as CSI reference subframes to be used for CSI measurement. The CSI reference subframes may correspond to subframes or sub-bands used by the received uplink grant, or may be a predefined number of subframes before a CSI data transmission.
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388.发明授权公开(公告)号：US10149318B2
公开(公告)日：2018-12-04
申请号：US14812983
申请日：2015-07-29
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Yongbin Wei , Durga Prasad Malladi , Siddhartha Mallik , Xiaoxia Zhang , Hao Xu
Abstract: Techniques are described for wireless communication. A first method includes receiving downlink control information for a first UE based at least in part on a group identifier associated with a NOMA group including the first UE and at least a second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE. A second method includes receiving downlink control information for a first UE, the downlink control information for the first UE including an indication of at least a second UE; receiving downlink control information for the second UE based at least in part on the indication of at least the second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE and the downlink control information for the second UE.
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公开(公告)号：US10149197B2
公开(公告)日：2018-12-04
申请号：US15811930
申请日：2017-11-14
Applicant: QUALCOMM Incorporated
Inventor： Miguel Griot , Hao Xu , Madhavan Srinivasan Vajapeyam
Abstract: Certain aspects of the present disclosure generally relate to techniques for secure connectionless uplink transmissions by a wireless device. Such techniques may provide for negotiation of an encryption mechanism as part of the setup for connectionless transmissions and subsequent secure connectionless uplink transmissions.
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390.发明授权公开(公告)号：US10148392B2
公开(公告)日：2018-12-04
申请号：US15002072
申请日：2016-01-20
Applicant: QUALCOMM Incorporated
Inventor： Onkar Jayant Dabeer , Aleksandar Damnjanovic , Kiran Kumar Somasundaram , Madhavan Srinivasan Vajapeyam , Hao Xu , Wanshi Chen , Alberto Rico Alvarino
Abstract: According to the present disclosure, CSI and/or a plurality of ACKs related to a group of DL data transmissions may be buffered at the UE as a GACK until a DCI trigger is received from the eNB. Once the trigger is received, the UE may transmit the CSI and/or GACK to the eNB. In this way HARQ feedback and/or CSI may be reliably communicated while reducing payload. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus send, to a UE, data transmissions associated with a first plurality of downlink subframes. In an aspect, the apparatus increments a counter for each data transmission sent to the UE. In a further aspect, the apparatus transmits, to the UE, a first trigger for a first GACK when a counter is greater than or equal to a threshold.
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