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公开(公告)号：US11284416B2
公开(公告)日：2022-03-22
申请号：US15388512
申请日：2016-12-22
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyi Li , Wanshi Chen
Abstract: Methods, systems, and devices for wireless communication for adaptive ultra-reliable low-latency communications (URLLC) semi-persistent scheduling (SPS) are described. One method includes determining a data packet payload size for a transmission using SPS resources in a transmission time interval (TTI). The method also includes sending a release signal to release a portion of the SPS resources in the TTI based on the size and transmitting the data packet during the TTI using unreleased SPS resources. Another method includes identifying that a packet profile of packets transmitted on SPS resources varies by more than a packet profile threshold and sending, based at least in part on the identifying, a request-to-update (RTU) signal to update the SPS resources. The method also include receiving a confirmation of receipt of the RTU signal and updating a resource allocation or a resource attribute based at least in part on the packet profile and confirmation of receipt.
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公开(公告)号：US11191101B2
公开(公告)日：2021-11-30
申请号：US16408227
申请日：2019-05-09
Applicant: QUALCOMM Incorporated
Inventor： Piyush Gupta , Mehmet Yavuz , Junyi Li , Rajat Prakash , Farhad Meshkati , Chong Li , Mostafa Khoshnevisan
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a semi-persistent scheduling (SPS) grant of initial resources for receiving a transmission, receive, in a group control channel, a resource allocation for additional resources for receiving the transmission, determine resources for receiving the transmission based on the resource allocation and the SPS grant, and receive the transmission on the determined resources. A base station may transmit a SPS grant for scheduling a transmission on a set of resources, receive a feedback report from a user equipment (UE) indicating the UE requires additional resources for receiving the transmission, generate, based at least on the UE requiring the additional resources, a resource allocation for scheduling the additional resources for the UE, transmit the resource allocation in a group control channel, and transmit the transmission on the set of resources and the additional resources.
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公开(公告)号：US11122599B2
公开(公告)日：2021-09-14
申请号：US16117908
申请日：2018-08-30
Applicant: QUALCOMM Incorporated
Abstract: Methods, systems, and devices for wireless communications are described for providing acknowledgements of grant-free uplink transmissions, which may in some cases be used for low latency communications. Approaches described herein include the use of per-user equipment (UE) acknowledgement resources assigned to UEs configured for grant-free uplink transmissions as well as the use of per-group acknowledgement resources assigned to groups of UEs configured for grant-free uplink transmissions. Dynamic puncturing of data in a shared downlink data channel may be used in the context of per-UE acknowledgement resource assignment. Corresponding grants of uplink transmission resources may be used in the context of per-group acknowledgement resources assignments.
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公开(公告)号：US11019641B2
公开(公告)日：2021-05-25
申请号：US16155595
申请日：2018-10-09
Applicant: QUALCOMM Incorporated
Inventor： Hua Wang , Junyi Li , Piyush Gupta , Chong Li
Abstract: Base stations of neighbor cells can coordinate with each other in allocating grant-free uplink (GUL) resources for a device-to-device (D2D) connection or channel between user equipments (UEs) across the neighbor cells. The base stations coordinate to determine a condition conducive to D2D communication between the UEs. If the condition exists, the base stations coordinate to allocate network resources for D2D communication between the UEs, and establish a D2D connection between the UEs using the allocated network resources for D2D communication.
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公开(公告)号：US10912107B2
公开(公告)日：2021-02-02
申请号：US16293400
申请日：2019-03-05
Applicant: QUALCOMM Incorporated
Abstract: Techniques are described herein to provide priority traffic grant-less access to pre-defined communication resources that are semi-persistently scheduled. A set of semi-persistent communication resources may be reserved for use by priority traffic. If not used for priority traffic, the semi-persistent resources may be scheduled for use by other types of traffic. As priority traffic is identified, the priority traffic may be transmitted using the semi-persistent resource without having those communication resources granted by a scheduling entity. Such grant-less access to the semi-persistent resources may result in interference between the scheduled traffic and the priority traffic communicated without first scheduling the specific communication resources. To mitigate interference between different traffic types, a user equipment (UE) may transmit a device-to-device silencing message to other UEs. Upon receiving the silencing message, the other UEs may release any scheduled communication resources that at least partially overlap with the semi-persistent resources.
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Patent Agency Ranking
公开(公告)号：US10856319B2
公开(公告)日：2020-12-01
申请号：US16058529
申请日：2018-08-08
Applicant: QUALCOMM Incorporated
Inventor： Jing Jiang , Wanshi Chen , Chong Li
Abstract: Certain aspects of the present disclosure relate to wireless communication systems, and more particularly, to link-dependent scheduling request (SR) formats for ultra-reliable low-latency communications (URLLC) in communication systems operating according to new radio (NR) technologies. A method is provided, that may be performed by a base station (BS) for wireless communications. The method includes determining one or more channel conditions for a link between the BS and a user equipment (UE). The BS assigns a SR format to the UE based on the one or more channel conditions. The UE receives the SR format assignment and transmits one or more SR transmissions to the BS according to the assigned SR format.
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公开(公告)号：US20200351884A1
公开(公告)日：2020-11-05
申请号：US16881249
申请日：2020-05-22
Applicant: QUALCOMM Incorporated
Abstract: Methods, systems, and devices for wireless communication are described to provide priority traffic grant-less access to pre-defined communication resources that are semi-persistently scheduled. A set of semi-persistent communication resources may be reserved for use by priority traffic. If the semi-persistent resources are not used for priority traffic, the semi-persistent resources may be scheduled for use by other types of traffic. As priority traffic is identified, the priority traffic may be transmitted using the semi-persistent resource without having those communication resources granted by a scheduling entity. Such grant-less access to the semi-persistent resources may result in collisions between the scheduled traffic and the priority traffic. To mitigate interference between different traffic types, the scheduled traffic may be transmitted using a transmission power that ensures an interference parameter indicative of an amount of interference imposed by the scheduled traffic on the priority traffic satisfies an interference threshold.
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公开(公告)号：US10797833B2
公开(公告)日：2020-10-06
申请号：US16148927
申请日：2018-10-01
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyi Li , Rajat Prakash
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a configuration for hybrid automatic repeat request (HARQ) retransmissions for semi-persistent scheduling (SPS), wherein the configuration, which is specific to the UE, identifies allocated resources of a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) for the HARQ retransmissions; and use the allocated resources identified in the configuration for the HARQ retransmissions. Numerous other aspects are provided.
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公开(公告)号：US10681708B2
公开(公告)日：2020-06-09
申请号：US15789489
申请日：2017-10-20
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Junyi Li , Hao Xu , Jing Jiang
Abstract: A first apparatus may puncture, in at least two subslots, a first type of data or control information with a second type of data or control information. The first apparatus may bundle the least two subslots within a subframe, and the subframe may include a portion for carrying acknowledgment (ACK)/negative acknowledgment (NACK) information associated with the second type of data or control information. The first apparatus may communicate with a user equipment (UE) during the at least two subslots within the subframe. A second apparatus may receive ACK/NACK information associated with a second type of data or control information. The second apparatus may reduce a transmission power for a first type of data or control information during a subsequent subframe when the ACK/NACK information indicates a negative acknowledgement.
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公开(公告)号：US10667282B2
公开(公告)日：2020-05-26
申请号：US16031897
申请日：2018-07-10
Applicant: QUALCOMM Incorporated
Inventor： Chong Li , Jay Kumar Sundararajan , Jing Jiang , Seyong Park
Abstract: Aspects of the present disclosure provide a mechanism for utilizing uplink hopping patterns for HARQ transmissions. Each hopping pattern may include a sequence of different frequency resources or a sequence of different scrambling sequences for a user equipment (UE) to utilize over time for HARQ transmissions. Each of the hopping patterns may further be associated with a time index mode in which the hopping pattern is applied to time resources such that each time resource within a consecutive sequence of time resources is mapped to a different frequency resource or scrambling sequence. The base station may select a hopping pattern for a particular UE and transmit an indication of the selected hopping pattern to the UE.
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