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公开(公告)号：US10925048B2
公开(公告)日：2021-02-16
申请号：US15910615
申请日：2018-03-02
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Sony Akkarakaran , Rahul Malik , Akula Reddy , Tamer Kadous
Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to a control resource set (coreset) for transmitting physical downlink control channels using a single-carrier waveform in communications systems operating according to new radio (NR) technologies. In an exemplary method, a base station may determine a first control resource set (coreset) of time and frequency resources within a control region of system bandwidth, to transmit a physical downlink control channel (PDCCH) to a user equipment (UE) and transmit the PDCCH to the UE as a single-carrier waveform via the first coreset of time and frequency resources.
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公开(公告)号：US10925041B2
公开(公告)日：2021-02-16
申请号：US16153645
申请日：2018-10-05
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Peter Gaal , Wanshi Chen , Tao Luo , Peter Pui Lok Ang , Jing Sun
Abstract: Aspects and techniques relate to scheduling resources for uplink transmissions in wireless communication systems. In some examples, an allocation of resources for uplink may be based on a common reference resource (e.g., a reference physical resource block, PRB) also used for allocation of resources for downlink In other examples, allocation of resources for uplink may be based on a different reference resource. A scheduler may further provide an indication whether the same, common reference resource is used, or a different reference resource. A scheduler may further indicate a different reference resource as needed. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US10912012B2
公开(公告)日：2021-02-02
申请号：US16446120
申请日：2019-06-19
Applicant: QUALCOMM INCORPORATED
Inventor： Kaushik Chakraborty , Xiaoxia Zhang , Jing Sun , Tamer Kadous
Abstract: Wireless communications systems and methods related to initial network access in a network deployed over a downlink unlicensed band paired with one or more UL bands are provided. A first wireless communication device communicates, with a second wireless communication device in a downlink unlicensed band, a first broadcast communication signal during a discovery time period configured based on a network discovery configuration. The first broadcast communication signal includes a configuration for requesting a second broadcast communication signal when there is no second broadcast communication signal detected within the discovery time period. The first wireless communication device communicates, with the second wireless communication device, a request for the second broadcast communication signal based on the configuration. The first wireless communication device communicates, with the second wireless communication device in the downlink unlicensed band, the second broadcast communication signal outside of the discovery time period in response to the request.
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公开(公告)号：US20210029641A1
公开(公告)日：2021-01-28
申请号：US16904278
申请日：2020-06-17
Applicant: QUALCOMM Incorporated
Inventor： Mostafa Khoshnevisan , Xiaoxia Zhang , Ozcan Ozturk , Jing Sun , Kapil Bhattad
Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communications and more specifically for handling hybrid automatic repeat request (HARQ) processes with discontinuous reception (DRX) operations. In some implementations, a user equipment (UE) may use a timer to maintain an ON duration in a DRX cycle based on receiving a downlink control information (DCI) message with a data-to-feedback timing indicator (for example, a K1 value) indicating a non-numeric value for a data message. For example, the UE may receive a DCI message with feedback timing for the data message based on maintaining the ON duration. In some other implementations, a UE may use a timer to maintain an ON duration following a feedback opportunity to support dynamic group-based HARQ messaging. For example, the UE may receive a DCI message requesting a retransmission of feedback information based on maintaining the ON duration.
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公开(公告)号：US10904871B2
公开(公告)日：2021-01-26
申请号：US16201844
申请日：2018-11-27
Applicant: QUALCOMM Incorporated
Inventor： Yang Yang , Jing Jiang , Jing Sun , Tao Luo , Peter Gaal , Gabi Sarkis , Joseph Binamira Soriaga , Heechoon Lee , Wanshi Chen
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for aggregation level specific PDCCH modification.
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Patent Agency Ranking
公开(公告)号：US20210014004A1
公开(公告)日：2021-01-14
申请号：US16899548
申请日：2020-06-11
Applicant: QUALCOMM Incorporated
Inventor： Mostafa Khoshnevisan , Jing Sun , Kapil Bhattad , Xiaoxia Zhang
IPC: H04L1/16 , H04B7/0456 , H04W72/04 , H04W72/12
Abstract: Methods, systems, and devices for wireless communications are described that support group-based acknowledgment feedback techniques. Two or more different groups of downlink transmissions may each have an associated transport block (TB) level or code block group (CBG) level group-based acknowledgment feedback, and a base station may transmit downlink control information to a UE that indicates one or more parameters that are used to determine which downlink transmissions are to be reported in the group-based feedback at a TB level, CBG level, or combinations thereof. Based on the parameters in the downlink control information, the UE may determine the feedback to be reported, and a timing for when to transmit the feedback to the base station.
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公开(公告)号：US20210007128A1
公开(公告)日：2021-01-07
申请号：US16915686
申请日：2020-06-29
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Tanumay Datta , Pravjyot Singh Deogun , Xiaoxia Zhang , Jing Sun
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a set of one or more uplink grants scheduling at least a first uplink transmission and a second uplink transmission during a channel occupancy time of an unlicensed radio frequency spectrum band. The UE may identify a transmission gap between the first uplink transmission and the second uplink transmission of the plurality of uplink transmissions by the UE during the channel occupancy time, the transmission gap exceeding a threshold time. The UE may determine that the transmission gap corresponds to a lost uplink grant. The UE may modify the first uplink transmission or the second uplink transmission based at least in part on the determination that the transmission gap corresponds to the lost uplink grant.
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公开(公告)号：US10863524B2
公开(公告)日：2020-12-08
申请号：US16373047
申请日：2019-04-02
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Jing Sun , Xiaoxia Zhang , Srinivas Yerramalli , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described. In systems supporting multiple communication protocol types (e.g., ultra-reliable low-latency communication and enhance mobile broadband communication), a user equipment may implement multiplexing rules for handling overlapping transmissions of different communication protocols. For example, if lower latency data supports multiplexing with higher latency data and a lower latency resource overlaps (either partially or completely) with a higher latency resource, a number of options can be taken to control multiplexing. Similarly, if low latency uplink control information supports multiplexing with a slot-based physical uplink shared channel, and the physical uplink shared channel has its own uplink control information, a number of options can be taken to control multiplexing. If slot-based uplink control information overlaps (either partially or completely) with low latency data, then, likewise, a number of options can be taken to control multiplexing. Controlling multiplexing may support meeting low latency thresholds.
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公开(公告)号：US10856263B2
公开(公告)日：2020-12-01
申请号：US16110343
申请日：2018-08-23
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Heechoon Lee , Wanshi Chen
Abstract: In order to improve the selection of search space candidates for a downlink control channel, an apparatus determines a set of decoding candidates of a lower aggregation level for a downlink control channel based on a random selection from a plurality of potential decoding candidates, wherein the plurality of potential decoding candidates are defined from a second set of decoding candidates of a higher aggregation level. The apparatus then attempts to decode the downlink control channel based on determined sets of decoding candidates of different aggregation levels. The downlink control channel may comprise a PDCCH.
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公开(公告)号：US10855355B2
公开(公告)日：2020-12-01
申请号：US16414568
申请日：2019-05-16
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Xiaoxia Zhang , Seyed Ali Akbar Fakoorian , Jing Sun , Tamer Kadous
Abstract: Techniques and apparatus for reporting channel state information (CSI) for unlicensed coordinated multipoint (CoMP) operations are provided. One technique includes determining, based on one or more conditions, for each of a plurality of base stations available for a coordinated multipoint (CoMP) transmission, whether the base station has transmitted a channel state information reference signal (CSI-RS) in unlicensed spectrum. CSI feedback is reported based on the determination.
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