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131.发明申请公开(公告)号：US20190124613A1
公开(公告)日：2019-04-25
申请号：US16148638
申请日：2018-10-01
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao LIU , Srinivas Yerramalli , Tamer Kadous
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in a first set of symbols of a first subframe of a frame. Within the first set of symbols of the first subframe, the SSS is prior to the PSS. The apparatus may also receive the PSS and the SSS in a first set of symbols of a second subframe of the frame and a second set of symbols of the second subframe of the frame. Within each of the first and second sets of symbols of the second subframe, the SSS is subsequent to the PSS. The apparatus may synchronize with a base station based at least in part on the PSS and the SSS.
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公开(公告)号：US20190104514A1
公开(公告)日：2019-04-04
申请号：US16144539
申请日：2018-09-27
Applicant: QUALCOMM Incorporated
Inventor： Arumugam Chendamarai Kannan , Sanaz Barghi , Aleksandar Damnjanovic , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described. A receiving wireless device may determine that a data communication is scheduled for the wireless device on a channel of a shared radio frequency spectrum band during a transmission opportunity (TxOP) spanning a plurality of slots. The receiving wireless device may identify a subset of slots from the plurality of slots, wherein the subset of slots is associated with a channel reservation signal by the wireless device. The receiving wireless device may receive the data communication at the wireless device during the TxOP using a beam configuration. The receiving wireless device may perform repeated transmissions of the channel reservation signal based at least in part on the beam configuration during the subset of slots and within a time period associated with receiving the data communication.
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公开(公告)号：US20190104416A1
公开(公告)日：2019-04-04
申请号：US16143281
申请日：2018-09-26
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Rahul Malik , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a system bandwidth of shared spectrum partitioned into a plurality of bandwidth parts based on interference associated with each of the plurality of bandwidth parts. The base station may then transmit the configuration of the system bandwidth to a plurality of devices. A UE may receive, from a base station, a configuration of a system bandwidth of shared spectrum. The system bandwidth may be partitioned into a plurality of bandwidth parts based on interference associated with each of the plurality of bandwidth parts. The UE may then communicate with the base station on at least one of the bandwidth parts.
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公开(公告)号：US20190090178A1
公开(公告)日：2019-03-21
申请号：US16040098
申请日：2018-07-19
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao Liu , Srinivas Yerramalli , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described. A base station and user equipment (UE) may utilize an enhanced physical downlink control channel (ePDCCH) within a common search space to establish a MulteFire connection. The common search space may include a common PDCCH (C-PDCCH) and a MulteFire system information block (SIB-MF1) grant. The base station may define one or more common search spaces for the SIB-MF1 grants and C-PDCCH and signal the resource allocation for the common search spaces to the UE within a master information block (MIB). Each common search space may include a fixed set of control elements that the UE monitors for decoding the SIB-MF1 grants and C-PDCCH. In some cases, the base station may hardcode resources for the SIB-MF1 grants and C-PDCCH. Alternatively, the base station may signal the resources for each of the SIB-MF1 grants and C-PDCCH via reserved bits in the MIB.
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公开(公告)号：US20190059001A1
公开(公告)日：2019-02-21
申请号：US16104030
申请日：2018-08-16
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communication are described. The described techniques provide for transmission of uplink data from a user equipment (UE) in the absence of scheduled uplink resources for the uplink data transmission that are allocated to the UE prior to the transmission of the uplink data. Various examples provide uplink configurations that may be used for unscheduled uplink transmissions of a UE, which may be selected dynamically or semi-statically. Unscheduled uplink transmissions may be transmitted in shared radio frequency spectrum according to one or more frame structures, and access to the shared radio frequency spectrum may be determined based on a priority of an operator associated with a UE for accessing the spectrum. Beamforming techniques may be used for transmissions and beam widths may be selected based on the information in a transmission, an operator priority for use of shared radio frequency spectrum, or any combination thereof.
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Patent Agency Ranking
公开(公告)号：US20190053269A1
公开(公告)日：2019-02-14
申请号：US16053154
申请日：2018-08-02
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Jing Sun , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communication are described. A transmitting device may obtaining channel access after a clear channel assessment (CCA) operation. The transmitting device may then determine an offset between a boundary of a symbol and a particular time at which the channel access is obtained. The transmitting device may generate a channel reservation (CR) preamble based on the offset and transmit the CR preamble. The transmitting device may also generate the CR preamble based on occupancy of sub-bands or beams used by the transmitting device. A receiving device may monitor for a CR message based on the CR preamble.
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公开(公告)号：US20190037603A1
公开(公告)日：2019-01-31
申请号：US16046425
申请日：2018-07-26
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Andrei Dragos Radulescu , Tamer Kadous , Srinivas Yerramalli
Abstract: Random access channel (RACH) configurations for new radio (NR) shared spectrum (NR-SS) networks are disclosed. A base station may perform a listen before talk (LBT) procedure on a shared communication channel at a beginning of a discovery measurement timing configuration (DMTC) window. In response to a successful LBT, the base station may transmit synchronization signals over a plurality of directional beams according to a predetermined sequence. The user equipment (UE) may determine the predetermined sequence through the detected synchronization signals. The base station may signal configuration of additional random access resources when the LBT procedure delays beyond dedicated random access resources. The base station may then monitor for UEs to transmit random access signals from each direction corresponding to directional beams within the additional random access resources according to the predetermined sequence.
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公开(公告)号：US20190037482A1
公开(公告)日：2019-01-31
申请号：US16045414
申请日：2018-07-25
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Andrei Dragos Radulescu , Tamer Kadous , Jing Sun , Xiaoxia Zhang , Taesang Yoo
Abstract: A discovery measurement timing configuration (DMTC) window reservation signal is disclosed for new radio (NR) shared spectrum (NR-SS) networks. The DMTC window is defined providing a reserved location for transmission of essential control signaling and potentially high priority traffic that may be transmitted in a prioritized manner. Access within the DMTC window may be provided with a clear channel assessment (CCA) exempt transmission (CET) option or a non-CET option. When the CET option is used, the reservation duration and period may be conveyed through the channel reservation signal. User equipments (UEs) that detect the reservation signal may re-transmit with added offset to inform neighboring base station that may not be within range of the serving base station. Base station that receive either the transmitted or re-transmitted reservation signal will refrain from communications that may interfere with the reception at the UEs.
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公开(公告)号：US20190037376A1
公开(公告)日：2019-01-31
申请号：US16045206
申请日：2018-07-25
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao Liu , Srinivas Yerramalli , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a configuration message indicating a payload size configuration for machine type communication (MTC) physical uplink control channel (PUCCH) messages. The UE may generate an MTC PUCCH message based at least in part on the payload size configuration and a PUCCH format of MTC uplink control information for transmission by the UE. The UE may transmit the MTC PUCCH message over a plurality of RBs in a frequency domain.
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公开(公告)号：US20190029019A1
公开(公告)日：2019-01-24
申请号：US16020400
申请日：2018-06-27
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Jing Sun , Tamer Kadous
Abstract: Wireless communications systems and methods related to communicating in a frequency spectrum using interlaced frequency channels and non-interlaced frequency channels are provided. A first wireless communication device selects a waveform structure between an interlaced frequency structure and a non-interlaced frequency structure for communicating in a frequency spectrum. The first wireless communication device communicates, with a second wireless communication device in the frequency spectrum, a communication signal based on the selected waveform structure. The interlaced frequency structure includes at least a first set of frequency bands in the frequency spectrum, the first set of frequency bands interlacing with a second set of frequency bands in the frequency spectrum. The non-interlaced frequency structure includes one or more contiguous frequency bands in the frequency spectrum.
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