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公开(公告)号：US20190313321A1
公开(公告)日：2019-10-10
申请号：US16373475
申请日：2019-04-02
Applicant: QUALCOMM Incorporated
Inventor： Huilin Xu , Heechoon Lee , Jing Sun , Wanshi Chen
Abstract: Improved methods, systems, devices, or apparatuses that support search space design are described. The described techniques enhance the number and utility of applied control channel candidates in the presence of blind decoding and control channel element (CCE) channel estimation limitations. The techniques allocate available blind decodes using a nested mapping scheme over one or more dimensions, based on a prioritization. In some other cases, the number of blind decodes may be allocated, either uniformly, or proportionally, between the plurality of search space set occasions. In some cases, the applied control channel candidates may be determined by dropping control channel candidates along one or more dimensions (e.g., search space set, or search space set occasion), until the blind decoding limitation or CE limitation is satisfied.
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392.发明申请公开(公告)号：US20190297620A1
公开(公告)日：2019-09-26
申请号：US16359247
申请日：2019-03-20
Applicant: QUALCOMM Incorporated
Inventor： Qingjiang Tian , Xiaoxia Zhang , Jing Sun , Srinivas Yerramalli
Abstract: Wireless communications systems and methods related to communicating uplink control information (UCI) in a network operating over multiple aggregated unlicensed carriers are provided. A first wireless communication device communicates, with a second wireless communication device, a downlink communication signal. The first wireless communication device communicates, with the second wireless communication device, an unscheduled uplink communication signal including an uplink report associated with the downlink communication signal, the unscheduled uplink communication signal communicated based on a listen-before-talk (LBT) procedure. The uplink report includes at least one of an acknowledgement (ACK) for data in the downlink communication signal, a negative-acknowledgement (NACK) for the data in the downlink communication signal, or channel information based at least on the downlink communication signal.
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公开(公告)号：US20190297604A1
公开(公告)日：2019-09-26
申请号：US16360961
申请日：2019-03-21
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Peter Pui Lok Ang , Wanshi Chen , Huilin Xu , Jing Sun , Tao Luo
Abstract: Systems and methods configured to provide size matching of downlink control information (DCI) formats to restrict a number of DCI format sizes for a set of DCI formats for concurrent use are described. In accordance with embodiments of the present disclosure, size matching at least two DCI formats of a set of DCI formats to restrict a number of DCI format sizes for the set of DCI formats for concurrent use is implemented. Restrictions with respect to the number of DCI format sizes for the set of DCI formats may correspond both to a first number of DCI sizes parameter based on a total number of DCI format sizes per wireless communication slot, and to a second number of DCI sizes parameter based on a total number of DCI format sizes for DCI formats used to carry DCI payload encoded using an identifier per wireless communication slot.
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公开(公告)号：US20190296847A1
公开(公告)日：2019-09-26
申请号：US16360810
申请日：2019-03-21
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Huilin Xu , Heechoon Lee
Abstract: Methods, systems, and devices for wireless communication are described. In some cases, due to blind decoding and channel estimation (CE) limits, one or more user equipment (UE) specific search sets may be pruned for blind decoding and/or CE purposes. For instance, after hashing a set of common decoding candidates to control channel elements (CCEs) within the control region, the UE specific search sets may be pruned so as to conform to the blind decode limitation, since a common search space has already occupied a portion of the total blind decode limit. Following pruning, the UE may hash the sets of UE-specific decoding candidates associated with the one or more UE specific search sets to CCEs within the control region. The UE may further prune UE specific search sets, based on CE limits, while reusing CE for overlapping hashed locations.
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公开(公告)号：US10412733B2
公开(公告)日：2019-09-10
申请号：US15710698
申请日：2017-09-20
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Seyedkianoush Hosseini , Jing Jiang
Abstract: Techniques are described that provide for generation of a first transport block (TB) that includes a number of code blocks (CBs) that are transmitted to a receiver during a first transmission time interval (TTI) having a first duration, and retransmission of any unsuccessfully received CBs in a second TTI having a duration that is selected from multiple available TTI durations. The second TTI may have a second TTI duration that is shorter than the first TTI duration, and may have CBs only from the first TB. One or more of a time duration or frequency resources of the second TTI may be selected based on the number of CBs that are retransmitted in the second TTI.
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Patent Agency Ranking
公开(公告)号：US20190261382A1
公开(公告)日：2019-08-22
申请号：US16276101
申请日：2019-02-14
Applicant: QUALCOMM INCORPORATED
Inventor： Qingjiang Tian , Srinivas Yerramalli , Xiaoxia Zhang , Jing Sun , Chih-Hao Liu
Abstract: Indication of transmission priority class is disclosed for sharing a base station's maximum channel occupancy time (MCOT) for use in autonomous uplink (AUL). Aspects of the disclosure provide for implicitly sharing the MCOT by providing an indication of transmission opportunity (TxOP) length. A serving base station sends an indication of a current TxOP length in control signals to a user equipment (UE). The UE may then infer a set of potential transmission priorities used by the serving base station according to the TxOP length, as TxOP length may relate to the MCOT, which itself may be associated with a particular transmission priority class. The UE may then, conservatively, select the highest transmission priority of the set of potential transmission priorities for autonomously transmitting any uplink data having at least the selected highest transmission priority within configured AUL resource of the current TxOP.
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公开(公告)号：US20190261326A1
公开(公告)日：2019-08-22
申请号：US16275228
申请日：2019-02-13
Applicant: QUALCOMM Incorporated
Inventor： Huilin Xu , Heechoon Lee , Jing Sun , Alexandre Pierrot
IPC: H04W72/04
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may identify a hash value index associated with searching for a physical downlink control channel. The hash value index may be identified based at least in part on an index of an interval of a plurality of intervals within a periodicity. The user equipment may configure, based at least in part on the hash value index, a hash function associated with determining the hash value. Numerous other aspects are provided.
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公开(公告)号：US10367566B2
公开(公告)日：2019-07-30
申请号：US15667801
申请日：2017-08-03
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Wanshi Chen , Peter Gaal , Hao Xu
Abstract: Multiple base stations or transmit points (TPs) may use single-user multiple-input multiple-output (SU-MIMO) layer-specific and codeword-specific communication configurations for non-coherent joint transmissions (NCJTs) to a user equipment (UE). Two TPs may be configured for NCJTs to the UE, and one or more of the TPs may transmit a set of communication configurations to the UE. The communication configurations may be transmitted in a single downlink control information (DCI) transmission that configures the UE to receive NCJTs as two codewords in a SU-MIMO transmission. The UE may receive the DCI, receive the multiple NCJTs, and demodulate/decode the NCJT transmissions as multiple codewords in a SU-MIMO transmission. In some cases, the two codewords may be received from two TPs. Alternatively, the two codewords may be received in two spatial layers transmitted from a single TP.
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公开(公告)号：US20190223215A1
公开(公告)日：2019-07-18
申请号：US16203073
申请日：2018-11-28
Applicant: QUALCOMM Incorporated
Inventor： Qingjiang Tian , Jing Sun , Xiaoxia Zhang , Srinivas Yerramalli , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain access to a shared radio frequency spectrum band for a transmission opportunity. The UE may perform an autonomous uplink transmission over the shared radio frequency spectrum band during a first portion of the transmission opportunity. The UE may transmit a physical layer scheduling request comprising a transmission size parameter for a second portion of the transmission opportunity. The UE may receive an uplink grant for the second portion of the transmission opportunity based at least in part on the scheduling request. The UE may perform a scheduled uplink transmission over the shared radio frequency spectrum band during the second portion of the transmission opportunity according to the uplink grant.
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公开(公告)号：US20190215859A1
公开(公告)日：2019-07-11
申请号：US16355105
申请日：2019-03-15
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Wanshi Chen , Peter Gaal , Shimman Arvind Patel , Aleksandar Damnjanovic , Hao Xu , Juan Montojo
Abstract: Methods, systems, and devices for wireless communication are described. Different transmission time interval (TTI) durations may be supported and configured to coexist with one another. A set of TTIs with a relatively short duration may overlap in time with longer duration TTIs. Boundaries of TTIs with a relatively short duration may be configured to align with boundaries of relatively longer duration TTIs. For example, TTIs that are a Long Term Evolution (LTE) subframe, an LTE slot, and a duration of two LTE symbol periods may be supported. Two-symbol period TTIs may align with or be embedded within slot-duration TTIs, which, in turn, may align with or be embedded within a subframe. In some examples, one or more symbol periods of a subframe may be designated as a gap between two-symbol TTIs within the subframe, or such symbols may be merged with a two-symbol TTI within the subframe.
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