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公开(公告)号：US20210159953A1
公开(公告)日：2021-05-27
申请号：US16640150
申请日：2018-09-11
Applicant: QUALCOMM Incorporated
Inventor： Liangming WU , Yu ZHANG , Chenxi HAO , Chao WEI , Wanshi CHEN , Hao XU
IPC: H04B7/0456 , H04B7/06
Abstract: Aspects of the present disclosure relate to techniques for codebook subset restriction (CSR). In some cases, a user equipment (UE) receives, from a network entity, codebook subset restriction (CSR) information. The UE determines, based on the CSR information, a restricted beam set for a plurality of antenna panels, determines precoding matrix indicator (PMI) feedback for the antenna panels subject to restricted beam set, and provides the PMI feedback to the network entity.
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公开(公告)号：US20210067269A1
公开(公告)日：2021-03-04
申请号：US16960494
申请日：2019-02-06
Applicant: Kai CHEN , Liangming WU , Jian LI , Hao XU , QUALCOMM Incorporated
Inventor： Kai CHEN , Liangming WU , Changlong XU , Jian LIN , Hao XU
IPC: H04L1/00
Abstract: A method, apparatus, and computer-readable medium for transmitting coded messages to a receiving device including constructing a data vector including a plurality of data bits, transforming the data vector into a u-domain vector, applying a mask to the u-domain vector, encoding the masked u-domain vector with polar encoding to generate a transmission vector, and transmitting, to the receiving device, the transmission vector.
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公开(公告)号：US20210036756A1
公开(公告)日：2021-02-04
申请号：US16982983
申请日：2019-04-03
Applicant: Liangming WU , Yu ZHANG , Chenxi HAO , Qiaoyu LI , Hao XU , Wanshi CHEN , QUALCOMM Incorporated
Inventor： Liangming WU , Yu ZHANG , Chenxi HAO , Qiaoyu LI , Hao XU , Wanshi CHEN
IPC: H04B7/06 , H04W28/06 , H04B7/0456
Abstract: Certain aspects of the present disclosure provide techniques for reducing overhead for channel state information (CSI). Certain aspects provide a method for wireless communication. The method generally includes receiving a channel state information reference signal (CSI-RS), determining one or more feedback components associated with a CSI feedback type based on the CSI-RS, identifying that a payload of the one or more feedback components is to be compressed, compressing the payload, and reporting the compressed payload.
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公开(公告)号：US20210036718A1
公开(公告)日：2021-02-04
申请号：US15733711
申请日：2019-04-02
Applicant: Kai CHEN , Changlong XU , Liangming WU , Jing JIANG , Hao XU , QUALCOMM INCORPORATED
Inventor： Kai CHEN , Changlong XU , Liangming WU , Jing JIANG , Hao XU
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an encoding device may determine a least reliable subset of information bits included in a set of information bits that includes a predefined active set of information bits to be encoded; may determine a codeword bit to be added to a codeword based at least in part on the least reliable subset of information bits, wherein adding the codeword bit to the codeword improves reliability of the least reliable subset of information bits; may add the codeword bit to the codeword; and may transmit the codeword. Numerous other aspects are provided.
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公开(公告)号：US20200288430A1
公开(公告)日：2020-09-10
申请号：US16836460
申请日：2020-03-31
Applicant: QUALCOMM Incorporated
Inventor： Hao XU , Tao LUO , Tingfang JI , Wanshi CHEN , Peter GAAL , Yongbin WEI , Gavin Bernard HORN
Abstract: The described aspects include methods and apparatus for activating a transmitter to communicate in a wireless network. A small cell can determine to activate the transmitter to serve user equipment (UE) in a wireless network. The small cell can then broadcast a portion of a set of broadcast signals in a radio frame and broadcast a remaining portion of the set of broadcast signals along with the portion of the set of broadcast signals in a subsequent radio frame. By refraining from immediately broadcasting all broadcast signals, the small cell can mitigate interference to other small cells. In addition, a UE can determine whether to generate random access channel (RACH) sequences for proximity determination or uplink timing synchronization based on parameters received in a RACH order. Moreover, a small cell with an active transmitter can decode discovery signals from a device to facilitate handover determination.
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Patent Agency Ranking
公开(公告)号：US20200229224A1
公开(公告)日：2020-07-16
申请号：US16835067
申请日：2020-03-30
Applicant: QUALCOMM Incorporated
Inventor： Yi HUANG , Hao XU , Wanshi CHEN , Renqiu WANG , Joseph Binamira SORIAGA , Peter GAAL , Seyong PARK
Abstract: Aspects of the present disclosure provide for opportunistic uplink transmissions within a slot. In some examples, after scheduling all regular uplink transmissions within a current slot, a base station (e.g., gNB) may identify a set of unused uplink resources within the current slot and generate and transmit unused resource information identifying the set of unused resources to the user equipment (UE) within the cell served by the base station. If a particular UE is configured to operate in an opportunistic mode, the UE may utilize the unused resource information to generate and transmit an opportunistic uplink transmission within the set of unused uplink resources.
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公开(公告)号：US20200229176A1
公开(公告)日：2020-07-16
申请号：US16833101
申请日：2020-03-27
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Peter GAAL , Wanshi CHEN , Hao XU
Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to positioning reference signal (PRS) enhancements for enhanced machine type communication (eMTC). An example method generally includes determining a first bandwidth within a larger system bandwidth to transmit a first positioning reference signal (PRS) to a first type of user equipment (UE), determining a second bandwidth within the system bandwidth to transmit a second PRS to a second type of UE, and transmitting information associated with the first PRS and the second PRS.
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公开(公告)号：US20200221425A1
公开(公告)日：2020-07-09
申请号：US16822842
申请日：2020-03-18
Applicant: QUALCOMM Incorporated
Inventor： Wanshi CHEN , Hao XU , Peter GAAL
Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to managing narrowband regions of system bandwidths for devices with limited communications resources, such as machine type communication(s) (MTC) devices and enhanced MTC (eMTC) devices. An example method generally includes determining a set of downlink (DL) narrowband regions partitioned from a DL system bandwidth, determining a set of uplink (UL) narrowband regions partitioned from an UL system bandwidth, determining a mapping between the set of DL narrowband regions and the set of UL narrowband regions, and communicating with at least a base station (BS) using at least one of the mapped narrowband regions.
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公开(公告)号：US20200186278A1
公开(公告)日：2020-06-11
申请号：US16790453
申请日：2020-02-13
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Kapil BHATTAD , Wanshi CHEN , Hao XU
Abstract: A method of wireless communication of a user equipment (UE) includes communicating with a base station using a baseline channel code. The UE indicates to the base station, using the baseline channel code, support for an additional channel code that is different than the baseline channel code. The UE receives, from the base station, an indication to operate using the additional channel code. Then, the UE receives a first transmission on first set of resources and a second transmission on a second set of resources from the base station, the first transmission being encoded with the baseline channel code and the second transmission being encoded with the additional channel code.
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公开(公告)号：US20200178189A1
公开(公告)日：2020-06-04
申请号：US16781544
申请日：2020-02-04
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Hao XU , Peter GAAL , Xiaofeng WANG , Wanshi CHEN , Yongbin WEI , Juan MONTOJO , Alberto RICO ALVARINO
Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.
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