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公开(公告)号：US10397754B2
公开(公告)日：2019-08-27
申请号：US15190374
申请日：2016-06-23
Applicant: QUALCOMM Incorporated
Inventor： Madhavan Srinivasan Vajapeyam , Jun Wang , Siddhartha Mallik , Taesang Yoo , Abhijit Khobare , Ajay Gupta , Vikas Jain , Yongbin Wei
Abstract: A device may support communication without a radio link control (RLC) layer, which may include receiving a packet data convergence protocol (PDCP) service data units (SDUs) for multiple radio bearers at a PDCP layer. The multiple radio bearers may have different reliability or delay targets, and a reordering procedure at the PDCP layer may be conducted on the different radio bearers. The reordering procedure may be a same reordering procedure for each of the radio bearers, with one or more parameters that may be adjusted based on one or both of the reliability target or delay target of the radio bearer.
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公开(公告)号：US10368336B2
公开(公告)日：2019-07-30
申请号：US15868761
申请日：2018-01-11
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Jun Wang , Taesang Yoo
Abstract: Methods, systems, and devices are described for evolved multimedia broadcast multicast service (eMBMS) utilizing enhanced component carriers (eCCs). A wireless system may send unicast data using resources allocated for multicast transmissions (e.g., eMBMS transmissions). The presence of unicast data in a transmission time interval (TTI) scheduled for multicast transmission may be indicated by a control region within the TTI. A UE may monitor the control region to identify the presence of unicast information. A TTI scheduled for multicast transmission may also include reference signals to aid in the demodulation of multicast or unicast data. In some cases, the reference signals may be front-loaded at the beginning or embedded within the TTI. The embedded reference signals may be configured based on the type of data carried by the TTI scheduled for multicast transmission, or by length of the cyclic prefix used by the TTI scheduled for multicast transmission.
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公开(公告)号：US10367530B2
公开(公告)日：2019-07-30
申请号：US15369525
申请日：2016-12-05
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Taesang Yoo , Tao Luo
IPC: H04L1/00 , H04L1/08 , H04L1/16 , H04L5/00 , H03M13/00 , H03M13/09 , H03M13/11 , H03M13/25 , H03M13/29 , H03M13/35 , H04W84/04
Abstract: Techniques are described for wireless communication. One method includes selecting an encoding type for each payload of a plurality of payloads. The selecting includes selecting a low density parity check code (LDPCC) encoding type for at least a first payload and selecting a turbo code (TC) encoding type for at least a second payload. The method also includes segmenting each payload into a plurality of code blocks; generating, for each code block, a cyclic redundancy check (CRC); encoding each code block and associated CRC in one or more codewords of a plurality of codewords, in which the encoding is based at least in part on the selected encoding type for a payload associated with the code block; and transmitting the codewords.
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公开(公告)号：US10355760B2
公开(公告)日：2019-07-16
申请号：US15413539
申请日：2017-01-24
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Zhifei Fan , Dinkar Vasudevan , Juan Montojo
IPC: H04B7/0456 , H04L5/00 , H04L27/26 , H04B7/06
Abstract: Various aspects described herein relate to small cyclic delay diversity (SCDD) operation used in a wireless communication system (e.g., 5G New Radio). A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method, computer-readable medium, or apparatus operates to identify a type of information for transmission, identify a rank associated with the type of information, and perform an SCDD precoding operation based at least in part on the identified type of information or the rank.
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公开(公告)号：US10333668B2
公开(公告)日：2019-06-25
申请号：US15250586
申请日：2016-08-29
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Jing Sun , Siddhartha Mallik , Tao Luo , Peter Gaal , Xiaoxia Zhang , Jun Wang
Abstract: Methods, systems, and devices are described for a system that supports wireless communication with a first set of devices using a first OFDM symbol duration associated with a first tone spacing (i.e., a first physical layer (PHY) configuration) and second set of devices using a PHY configuration associated with a second tone spacing. A base station may transmit a set of discovery reference signals (DRS) in a narrowband region of a primary channel of a carrier. The DRS may have the first PHY configuration and a secondary channel of the carrier may support communications using the second PHY configuration. The base station may transmit a first system information (SI) message for one set of devices using the first PHY configuration, and it may transmit a second SI message for another set of devices using the second PHY configuration.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20190150088A1
公开(公告)日：2019-05-16
申请号：US16187836
申请日：2018-11-12
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Xiaoxia Zhang , Taesang Yoo , Aleksandar Damnjanovic , Tamer Kadous , Yongbin Wei
Abstract: Techniques are described herein for using a signal to wake up a user equipment (UE) that is in a low-power mode in a synchronized wireless communication system operating a shared radio frequency spectrum band. Once a base station wins a contention for a transmission opportunity in the shared radio frequency spectrum band, the base station may transmit a single signal before the transmission opportunity. After receiving the signal, the UE may begin monitoring for control information (e.g., control resource sets) associated with slots in the transmission opportunity. If the control information indicates that the content of the slot is for the UE, the UE may monitor the slot for its content.
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公开(公告)号：US20190110302A1
公开(公告)日：2019-04-11
申请号：US16129545
申请日：2018-09-12
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Vikas Jain , Taesang Yoo , Tamer Kadous , Yongbin Wei
Abstract: Wireless communications systems and methods related to determining scheduling and transmission timeline for communicating in a shared communication medium are provided. A first wireless communication device communicates, with a second wireless communication device, scheduling information during a first time period of a first transmission opportunity (TXOP) of a first network operating entity in a shared communication medium, the scheduling information indicating an offset time period relative to the first time period. The first wireless communication device communicates, with the second wireless communication device, a communication signal during a second TXOP subsequent to the first TXOP based on the offset time period.
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公开(公告)号：US20190110265A1
公开(公告)日：2019-04-11
申请号：US16216118
申请日：2018-12-11
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Juan Montojo , Jing Sun , Zhifei Fan
Abstract: Methods, systems, and devices for wireless communication are described. A base station may establish a transmission gap between downlink (DL) and uplink (UL) transmissions on a shared radio frequency (RF) spectrum band using time division duplex (TDD). The gap length may be based at least in part on a maximum allowed length of a filler signal corresponding to a coverage area of the base station. To reserve the shared band, a user equipment (UE) may communicate the filler signal for a length of time that is based at least in part on the maximum allowed length and a geographic distance between the UE and the base station. UEs farther from the base station transmit the filler signal of shorter lengths before sending an UL transmission, so that the UL transmissions from different UEs arrive at the same time at the base station regardless of the geographic distance between the UEs.
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公开(公告)号：US20190090273A1
公开(公告)日：2019-03-21
申请号：US16046500
申请日：2018-07-26
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Xiaoxia Zhang , Jing Sun , Aleksandar Damnjanovic , Tamer Kadous
Abstract: Quasi-colocation (QCL) for listen before talk (LBT) procedures is disclosed. A base station having a plurality of antennas may identify one or more groups of QCL antennas. Various aspects provide for different rules defining the QCL relationship, such as base on interference experienced by the antennas, a physical or logical connection of the antennas and LBT coupling, or synchronization. QCL may further be determined across multiple shared channels, such as based on frequency separation or frequency band of the channels. Once grouped as QCL, the base station performs the LBT procedure to reserve access to the one or more shared communication channels. If the LBT is successful, the base station may then transmit a channel reservation preamble on the shared communication channels in response.
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公开(公告)号：US10231131B2
公开(公告)日：2019-03-12
申请号：US15649375
申请日：2017-07-13
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Juan Montojo , Siddhartha Mallik , Aleksandar Damnjanovic , Taesang Yoo
Abstract: Wireless communications systems and methods related to autonomous uplink transmission in a shared spectrum are provided. A first wireless communication device identifies a transmission opportunity (TXOP) in a shared spectrum shared by the plurality of network operating entities. The first wireless communication device is associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device identifies a resource in the TXOP designated for autonomous communication. The first wireless communication device communicates autonomous data with a second wireless communication device associated with the first network operating entity during the TXOP using the resource.
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