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公开(公告)号：US10341884B2
公开(公告)日：2019-07-02
申请号：US15182273
申请日：2016-06-14
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Xiaoxia Zhang , Taesang Yoo , Siddhartha Mallik
IPC: H04W24/02 , H04L27/26 , H04W28/04 , H04W24/08 , H04W74/06 , H04W28/02 , H04W74/00 , H04B7/06 , H04W74/08 , H04W72/08
Abstract: Channel clearance using a shared radio frequency spectrum band may be performed for both a base station and a user equipment (UE). A base station may perform a listen before talk (LBT) procedure and verify one or more channels in a shared radio frequency spectrum band are available for transmissions and, if the LBT procedure is successful, transmit a pre-grant transmission to one or more UEs. The UEs may perform an LBT procedure for channel(s) indicated in the pre-grant transmission. If the UE LBT procedure passes, the UE may transmit a channel clearance signal, and may transmit a feedback communication responsive to the pre-grant transmission. The feedback communication may indicate, for example, the pre-grant transmission was received and which of the one or more channels are available based on the LBT procedure. The base station may receive the feedback communication and initiate transmissions to the UE.
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公开(公告)号：US10334577B2
公开(公告)日：2019-06-25
申请号：US15443933
申请日：2017-02-27
Applicant: QUALCOMM Incorporated
Inventor： Shimman Arvind Patel , Wanshi Chen , Seyedkianoush Hosseini , Jing Sun , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described. In one example, an indication in a first control message in a control region of a first transmission time interval (TTI) identifies a data region of the first TTI. A data region of the second TTI may be identified based on a grant of resources received in a second control message of a second TTI, where the data region of the first TTI and the control region of the second TTI are frequency division multiplexed with the data region of the second TTI. Other examples include a downlink grant at the beginning of a control region and uplink grants at the end of the control region. In other examples, a downlink grant for a user equipment (UE) may include an indication of resources allocated to the UE in that resource block and a second resource block.
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公开(公告)号：US20190191360A1
公开(公告)日：2019-06-20
申请号：US16215330
申请日：2018-12-10
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Heechoon Lee , Peter Gaal
CPC classification number: H04W48/12 , H04L5/0051
Abstract: Methods, systems, and devices for wireless communications are described. A number of blind decodings of a search space set for control information are defined. A search space of the search space set includes a subset of blind decodings. A reduction factor is determined. The reduction factor is applied to the subset of blind decodings to obtain a reduced subset of blind decodings for the search space. A reduced number of blind decodings of the search space set is identified based at least in part on the reduced subset of blind decodings for the search space. The control information is transmitted in a decoding candidate of the reduced number of blind decodings of the search space.
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404.发明申请公开(公告)号：US20190190668A1
公开(公告)日：2019-06-20
申请号：US16218345
申请日：2018-12-12
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Jing Sun , Tamer Kadous , Xiaoxia Zhang
CPC classification number: H04L5/0046 , H04L1/0017 , H04L5/0007 , H04L5/0035 , H04L27/264 , H04L27/2646 , H04L27/2692 , H04W72/1278 , H04W72/1284 , H04W74/0808 , H04W74/0833 , H04W74/085
Abstract: Wireless communications systems and methods related to performing subband-based random access and/or subband-based scheduling request in a network are provided. A first wireless communication device receives a communication configuration indicating one or more subbands for transmitting a signal including at least one of a random access preamble sequence or a scheduling request. The first wireless communication device performs a clear channel assessment (CCA) on each subband of the one or more subbands. The first wireless communication device transmits the signal using at least one subband of the one or more subbands based on a result of the CCA.
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公开(公告)号：US10314037B2
公开(公告)日：2019-06-04
申请号：US15642104
申请日：2017-07-05
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Seyedkianoush Hosseini , Peter Gaal , Srinivas Yerramalli , Hao Xu , Jing Sun , Shimman Arvind Patel , Aamod Khandekar
Abstract: Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.
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Patent Agency Ranking
公开(公告)号：US20190159202A1
公开(公告)日：2019-05-23
申请号：US16170705
申请日：2018-10-25
Applicant: QUALCOMM Incorporated
Inventor： Heechoon LEE , Joseph Binamira Soriaga , Jing Sun , Jing Jiang , Wanshi Chen , Peter Gaal , Alexandros Manolakos
IPC: H04W72/04
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive control information for a communication of the UE; and determine whether the control information is associated with a slot-based control configuration or a non-slot-based control configuration based at least in part on the control information; or determine whether the communication is associated with a slot-based data configuration or a non-slot-based data configuration. Numerous other aspects are provided.
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公开(公告)号：US20190158317A1
公开(公告)日：2019-05-23
申请号：US16191748
申请日：2018-11-15
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Jing Sun , Wanshi Chen , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. A network device such as a next generation (gNB) may identify control information for transmission on a downlink control channel e.g., a physical downlink control channel (PDCCH). The network device may identify a candidate set of decoding candidates to which the control information is able to be mapped. In some examples, each decoding candidate may include one or more control channel elements (CCEs). The network device may select, from the candidate set of decoding candidates, an actual set of decoding candidates to which the control information is to actually be mapped, and map the control information into the actual set of decoding candidates. Upon decoding the control information, the network device may transmit the control information within a search space including the actual set of decoding candidates to a user equipment (UE).
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408.发明申请公开(公告)号：US20190150172A1
公开(公告)日：2019-05-16
申请号：US16184855
申请日：2018-11-08
Applicant: QUALCOMM Incorporated
Inventor： Peter Pui Lok Ang , Juan Montojo , Wanshi Chen , Peter Gaal , Tao Luo , Tingfang Ji , Heechoon Lee , John Edward Smee , Jing Sun
Abstract: Techniques are described for signaling a downlink bandwidth part (BWP) switching event and an aperiodic channel state information (A-CSI) request in a paired spectrum environment. The base station may transmit uplink scheduling downlink control information (DCI) to a user equipment (UE) that includes the A-CSI request and an identifier for the downlink BWP of the downlink BWP switching event. After receiving the A-CSI request and the downlink BWP, the UE may perform one or more CSI measurements using the downlink BWP. The UE may use physical uplink shared channel (PUSCH) resources associated with the uplink scheduling DCI to transmit the CSI report to the base station. Using these techniques, the base station may be configured to indicate that a downlink BWP switching event is to occur and allocate PUSCH resources to the UE to be used to transmit the CSI report associated with the downlink BWP switching event.
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公开(公告)号：US20190141723A1
公开(公告)日：2019-05-09
申请号：US16155515
申请日：2018-10-09
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Tamer Kadous , Yongbin Wei , Zhifei Fan , Jing Sun , Aleksandar Damnjanovic , Bin Tian
Abstract: Wireless communications systems and methods related to signaling medium reservation information medium sharing among multiple radio technologies (RATs) are provided. A wireless communication device of a first RAT detects a channel reservation signal of a second RAT in a spectrum shared by the first RAT and the second RAT. The wireless communication device determines whether the channel reservation signal indicates a first transmission opportunity (TXOP) duration or a second TXOP duration that is different from the first TXOP duration. The wireless communication device selects, based on the determination, at least one of performing a backoff or continuing to monitor the spectrum.
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公开(公告)号：US10285169B2
公开(公告)日：2019-05-07
申请号：US15192662
申请日：2016-06-24
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Peter Gaal
IPC: H04L5/00 , H04W72/04 , H04B7/0456
Abstract: The present disclosure relates to downlink control information (DCI) enhancements for non-orthogonal multiple access. For example, the disclosure presents a method and an apparatus for wireless communications that may include determining, at the base station, downlink control information (DCI) for a first user equipment (UE), wherein the DCI for the first UE comprises modulation order information, spatial layer information, and power ratio information of the first UE, and a precoding matrix indicator (PMI) and spatial layer information of a second UE; and transmitting the determined DCI to the first UE.
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