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公开(公告)号：US10827558B2
公开(公告)日：2020-11-03
申请号：US15633502
申请日：2017-06-26
Applicant: QUALCOMM Incorporated
Inventor： Piyush Gupta , Junyi LI
Abstract: User equipments (UEs) may transmit periodic discovery broadcasts to enable another UE to establish a relay connection to a network. When the UEs transmit respective discovery broadcasts, the discovery broadcasts may cause excessive utilization of network or battery resources. In some aspects, described herein, a first UE, based at least in part on failing to receive a periodic discovery broadcast, may transmit a search signal. A second UE may refrain from transmitting periodic discovery broadcasts based at least in part on a first energy metric not satisfying a first energy metric threshold, but may transmit a discovery broadcast as a response to the search signal based at least in part on a second energy metric satisfying a second energy metric threshold, thereby enabling the first UE to establish a connection to a base station using the second UE as a relay.
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公开(公告)号：US10790940B2
公开(公告)日：2020-09-29
申请号：US16253147
申请日：2019-01-21
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyi Li , Piyush Gupta , Hua Wang , Karl Georg Hampel
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a negative acknowledgement (NACK) corresponding to a failed communication from a first transmission/reception point (TRP) included in a coordinated multipoint network. The UE may monitor a control channel associated with a second TRP included in the coordinated multipoint network based at least in part on transmitting the NACK, wherein the first TRP and the second TRP use different frequency bands. The UE may receive a retransmission of the failed communication based at least in part on monitoring the control channel. Numerous other aspects are provided.
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公开(公告)号：US10750489B2
公开(公告)日：2020-08-18
申请号：US16224331
申请日：2018-12-18
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Piyush Gupta , Junyi Li
IPC: H04W72/04 , H04L5/00 , H04W76/14 , H04L1/18 , H04L5/14 , H04W88/04 , H04L1/00 , H04W8/00 , H04W48/12 , H04W4/70
Abstract: Methods, systems, and devices for wireless communication are described. In an FDD system, a UE may identify an indicator associated with ultra-reliable low latency communications (URLLC) while communicating in a sidelink channel. The UE may also identify dedicated uplink resources in the sidelink channel, and reserve the dedicated uplink resources. The dedicated uplink resources may be reserved for an acknowledgement/negative acknowledgement (ACK/NACK) feedback or for a scheduling request (SR). URLLC data may be communicated, and the reserved uplink resources may be utilized to transmit an ACK/NACK feedback or a SR. In a TDD system, a base station may transmit information identifying dedicated resources for URLLC data. In some cases, a base station may transmit an indicator channel, which a sidelink UE may monitor to determine the presence of URLLC data, and respond accordingly.
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公开(公告)号：US20200252857A1
公开(公告)日：2020-08-06
申请号：US16853086
申请日：2020-04-20
Applicant: QUALCOMM Incorporated
Inventor： Piyush Gupta , Tingfang Ji , Chong Li , Shailesh Patil , Joseph Binamira Soriaga , Jing Jiang , Wei Zeng , Alexei Yurievitch Gorokhov , Junyi Li
Abstract: Device detection in networks with mixed mobility devices is discussed. Devices in the network first determine a discovery mode from a plurality of discovery modes, wherein the determining is based on a mobility state of the wireless device. The device identifies a set of resources associated with the determined discovery mode, wherein each of the plurality of discovery modes is provisioned with separate resources. A discovery signal is transmitted using the identified set of resources according to the discovery mode. Thus, devices with higher mobility will generally send discovery signals more often than devices that are static or semi-static.
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公开(公告)号：US10588166B2
公开(公告)日：2020-03-10
申请号：US15616124
申请日：2017-06-07
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyi Li , Piyush Gupta
Abstract: Various aspects of the disclosure relate to communicating control information via interleaved symbols. For example, symbols of a first handshaking process may be interleaved with symbols of a second handshaking process. In some scenarios, the control information includes request-to-send (RTS) and clear-to-send (CTS) signaling. In some aspects, different tone spacing is used for the control information than is used for data within a subframe. In some aspects, a different cyclic prefix length is used for control information than is used for data within a subframe.
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Patent Agency Ranking
公开(公告)号：US10425779B2
公开(公告)日：2019-09-24
申请号：US15675366
申请日：2017-08-11
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyi Li , Piyush Gupta
IPC: H04W4/12 , H04W76/14 , H04W74/08 , H04W52/38 , H04W52/32 , H04L29/08 , H04W52/28 , H04W52/26 , H04W52/24 , H04W52/22 , H04W52/16 , H04L25/02 , H04W92/18 , H04W52/50
Abstract: Methods, systems, and devices for wireless communication are described. A first UE and a second UE may coordinate to establish a sidelink connection. The first UE may identify data to transmit to the second UE, and the first UE may transmit a request to send (RTS) message to the second UE with a first transmit power. The first UE may then determine to refrain from using the first transmit power for the data transmission, and the first UE may transmit the data to the second UE with a second transmit power that is different from the first transmit power. The UE may determine the second transmit power for the data transmission based on instantaneous channel quality information (CQI) received in a clear to send (CTS) message, a modulation and coding scheme (MCS) selected for the data transmission, a threshold power, etc.
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公开(公告)号：US20190229855A1
公开(公告)日：2019-07-25
申请号：US16253147
申请日：2019-01-21
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyl Li , Piyush Gupta , Hua Wang , Karl Georg Hampel
CPC classification number: H04L1/1819 , H04L1/1887 , H04L1/1896 , H04L5/0035 , H04L5/0055 , H04W76/27
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a negative acknowledgement (NACK) corresponding to a failed communication from a first transmission/reception point (TRP) included in a coordinated multipoint network. The UE may monitor a control channel associated with a second TRP included in the coordinated multipoint network based at least in part on transmitting the NACK, wherein the first TRP and the second TRP use different frequency bands. The UE may receive a retransmission of the failed communication based at least in part on monitoring the control channel. Numerous other aspects are provided.
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公开(公告)号：US10231166B2
公开(公告)日：2019-03-12
申请号：US15249229
申请日：2016-08-26
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Piyush Gupta , Junyi Li
Abstract: A user equipment (UE) may determine that a synchronous transmission by the UE includes traffic having a priority higher than a priority of nominal traffic. In response to the determination, the UE may, alter a use of at least some of an initial portion of a discovery frame from energy detection to signal transmission. The signal transmission may be a pilot signal transmission or a non-information-carrying signal transmission. The traffic having the priority higher than the nominal traffic may include mission-critical traffic. A reliability requirement of mission-critical traffic may be higher than a reliability requirement of nominal traffic. A latency requirement of mission-critical traffic may be lower than a latency requirement of nominal traffic. The signal transmission may be at a power level that is sufficient to result in energy detection at another UE. Various additional and alternative aspects are described herein.
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公开(公告)号：US10136431B2
公开(公告)日：2018-11-20
申请号：US15377040
申请日：2016-12-13
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Piyush Gupta , Junyi Li
Abstract: Methods, systems, and devices for wireless communication are described. A relay wireless node may receive, during a first transmit time interval (TTI), a data message to be forwarded to a wireless node. The relay wireless node may forward the data message to the wireless node during the first TTI. The relay wireless node may receive, during a second TTI, a feedback message from the wireless node. The relay wireless node may retransmit the feedback message during the second TTI.
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公开(公告)号：US20180255532A1
公开(公告)日：2018-09-06
申请号：US15711751
申请日：2017-09-21
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Piyush Gupta , Junyi Li
CPC classification number: H04W72/042 , H04L1/18 , H04L5/0055 , H04L5/14 , H04W4/70 , H04W8/005 , H04W48/12 , H04W72/0446 , H04W76/14 , H04W88/04
Abstract: Methods, systems, and devices for wireless communication are described. In an FDD system, a UE may identify an indicator associated with ultra-reliable low latency communications (URLLC) while communicating in a sidelink channel. The UE may also identify dedicated uplink resources in the sidelink channel, and reserve the dedicated uplink resources. The dedicated uplink resources may be reserved for an acknowledgement/negative acknowledgement (ACK/NACK) feedback or for a scheduling request (SR). URLLC data may be communicated, and the reserved uplink resources may be utilized to transmit an ACK/NACK feedback or a SR. In a TDD system, a base station may transmit information identifying dedicated resources for URLLC data. In some cases, a base station may transmit an indicator channel, which a sidelink UE may monitor to determine the presence of URLLC data, and respond accordingly.
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