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公开(公告)号：US10887850B2
公开(公告)日：2021-01-05
申请号：US16572450
申请日：2019-09-16
Applicant: QUALCOMM INCORPORATED
Inventor： Seyong Park , Amir Aminzadeh Gohari , Renqiu Wang , Yi Huang , Hao Xu
Abstract: Wireless communications systems and methods related to improve control reporting latency are provided. A wireless communication device receives, from a first link in a first time interval, first control information associated with a second link and the first time interval. The wireless communication device transmits, via the second link in the first time interval, a control report associated with the second link based on a report configuration that is independent from the first control information. The report configuration is associated with a waveform type. The wireless communication device receives, from the first link in a second time interval following the first time interval, second control information that is dependent on the control report. The report configuration includes a power headroom (PHR) report configuration. The PHR report configuration includes a reference PHR report configuration. The PHR report configuration includes a delayed PHR report configuration.
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公开(公告)号：US10862639B2
公开(公告)日：2020-12-08
申请号：US15802181
申请日：2017-11-02
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Wanshi Chen , Heechoon Lee , Hao Xu
Abstract: A method and apparatus for decoupling of a synchronization (“sync”) channel raster and a channel raster in a wireless communication system is disclosed. For example, the method and apparatus include determining, at a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a physical broadcast channel (PBCH) in any frequency of the set of frequencies of the synchronization channel raster to at least one UE. For example, the method and apparatus further include determining, at a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a PBCH in a frequency of the set of frequencies of the synchronization channel raster closest to a center frequency of a bandwidth to at least one UE.
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公开(公告)号：US10833826B2
公开(公告)日：2020-11-10
申请号：US16272407
申请日：2019-02-11
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Peter Gaal , Hao Xu , Wanshi Chen , Yongbin Wei , Xiaofeng Wang , Renqiu Wang , Seyed Ali Akbar Fakoorian , Madhavan Srinivasan Vajapeyam , Alberto Rico Alvarino , Juan Montojo
Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.
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公开(公告)号：US10827491B2
公开(公告)日：2020-11-03
申请号：US14870543
申请日：2015-09-30
Applicant: QUALCOMM Incorporated
Inventor： Peter Gaal , Srinivas Yerramalli , Tao Luo , Durga Prasad Malladi , Naga Bhushan , Yongbin Wei , Aleksandar Damnjanovic , Hao Xu , Wanshi Chen , Shimman Arvind Patel , Xiaoxia Zhang
Abstract: Techniques are described for wireless communication. A first method includes receiving from a base station an indication of a set of one or more uplink interlaces of an unlicensed radio frequency spectrum band allocated for a sounding reference signal, and transmitting the sounding reference signal for a user equipment (UE) over the indicated set of one or more uplink interlaces of the unlicensed radio frequency spectrum band. A second method includes receiving an indication of an interlace of an unlicensed radio frequency spectrum band allocated for a physical uplink control channel (PUCCH) transmission, and transmitting a scheduling request and a buffer status report over the indicated interlace.
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公开(公告)号：US20200337045A1
公开(公告)日：2020-10-22
申请号：US16922794
申请日：2020-07-07
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Peter Gaal , Hao Xu
Abstract: Methods, systems, and devices are described for wireless communication at a device. A wireless device may be configured with a transmission time interval (TTI) bundling parameter. The device may then identify one or more resources for an uplink (UL) control channel based on the TTI bundling parameter (e.g., using either an implicit or an explicit indication from another wireless node such as a serving cell of a base station) and transmit the UL control channel using the identified resources. The device may also identify a downlink control information (DCI) format based on the TTI bundling parameter. For example, a resource allocation granularity level may be associated with the bundling parameter, and the length of a DCI field may depend on the resource allocation granularity level.
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Patent Agency Ranking
公开(公告)号：US10812231B2
公开(公告)日：2020-10-20
申请号：US15461298
申请日：2017-03-16
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Peter Gaal , Hao Xu
IPC: H04L5/00 , H04L1/00 , H04B7/0417 , H04B7/024 , H04B7/0456 , H04B7/0413 , H04B7/06
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may use multiple-input multiple-output (MIMO) layer specific and codeword specific communication configurations to communicate with multiple base stations. For example, multiple base stations may be configured to provide coordinated multipoint (CoMP) transmissions to the UE. One or more of the base stations may transmit a set of communications configurations to the UE that includes at least one MIMO layer specific or codeword specific configuration. The UE may then receive a dynamic indication of which communication configuration to use during a specific time period. The UE may then communicate with one or more of the base stations using the indicated configuration during the specified time period.
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公开(公告)号：US10805855B2
公开(公告)日：2020-10-13
申请号：US16833239
申请日：2020-03-27
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Madhavan Srinivasan Vajapeyam , Hao Xu , Wanshi Chen , Peter Gaal
Abstract: Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.
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公开(公告)号：US10779266B2
公开(公告)日：2020-09-15
申请号：US15422185
申请日：2017-02-01
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Peter Gaal , Hao Xu , Yongbin Wei , Stefan Geirhofer
IPC: H04W72/04 , H04B7/0456 , H04B7/06 , H04J11/00 , H04L25/02 , H04L5/00 , H04B7/0413 , H04L5/14 , H04B7/08
Abstract: Enhanced sounding reference signal (SRS) transmissions for multiple input, multiple output (MIMO) operation are disclosed in which a user equipment (UE) detects an observed interference level for each receiver chain of the UE. In response to an imbalance, the UE precodes a SRS targeting downlink operation to indicate the imbalance. The UE then transmits the precoded SRS. In alternative aspects, the precoded SRS vector may be determined by an evolved nodeB (eNB). In such aspects, the eNB determines the precoded SRS vector targeting downlink operations for the served UEs, wherein the determined precoded SRS vector includes determining the precoded SRS vector on a per UE basis, enabling the precoded SRS vector for either one or both of frequency division duplex (FDD) systems and time division duplex (TDD) systems, or enabling the precoded SRS vector for aperiodic SRS only. The eNB then transmits the determined precoded SRS vector to the UE.
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329.发明授权公开(公告)号：US10778487B2
公开(公告)日：2020-09-15
申请号：US16442017
申请日：2019-06-14
Applicant: QUALCOMM Incorporated
Inventor： Yi Huang , Wanshi Chen , Hao Xu , Wei Zeng
Abstract: A method and apparatus for demodulation reference signal (DMRS) communication are described. The method and apparatus include determining a DMRS pattern for at least two multiplexing schemes. In some aspects, the at least two multiplexing schemes may include orthogonal frequency-division multiplexing (OFDM) and single carrier frequency-division multiplexing (SC-FDM). Further, in some aspects, the DMRS pattern may correspond to a continuous tone pattern in each subframe transmitted in accordance with both SC-FDM and OFDM. Additionally, in some aspects, the DMRS pattern may correspond to a comb tone pattern in each subframe transmitted in accordance with both SC-FDM and OFDM. The method and apparatus further include transmitting a DMRS in accordance with at least one of the two multiplexing schemes and based on the DMRS pattern.
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公开(公告)号：US10775361B2
公开(公告)日：2020-09-15
申请号：US15389282
申请日：2016-12-22
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Hao Xu , Tingfang Ji , Jing Jiang
Abstract: Certain aspects of the present disclosure are generally directed to monitoring different decoding candidates assuming different encoding schemes. For example, certain aspects of the present disclosure are directed to a method for wireless communication. The method generally includes determining a first encoding scheme used to encode first downlink control information (DCI) and a second encoding scheme used to encode second DCI, and monitoring one or more first decoding candidates for the first DCI based on the first encoding scheme and one or more second decoding candidate for the second DCI based on the second encoding scheme.
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