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191.发明申请公开(公告)号：US20180054848A1
公开(公告)日：2018-02-22
申请号：US15240040
申请日：2016-08-18
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Zhifei Fan , Jing Sun , Juan Montojo , Siddhartha Mallik , Aleksandar Damnjanovic , Xiaoxia Zhang
CPC classification number: H04W76/25 , H04L5/0048 , H04L5/0053 , H04L5/0073 , H04W16/14 , H04W28/26 , H04W72/0413 , H04W72/0446 , H04W72/0453 , H04W72/14 , H04W74/02
Abstract: Techniques are described for wireless communication. One method includes receiving, in a downlink portion of a transmission structure on a shared radio frequency spectrum band, an uplink grant for an uplink data portion of the transmission structure. The transmission structure includes the downlink portion, followed by and time domain multiplexed with an uplink control portion, followed by and time domain multiplexed with the uplink data portion. The method also includes retaining access to the shared radio frequency spectrum band by transmitting an unscheduled transmission during the uplink control portion of the transmission structure.
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公开(公告)号：US20180054783A1
公开(公告)日：2018-02-22
申请号：US15659584
申请日：2017-07-25
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Juan Montojo , Tamer Kadous , Junyi Li , Xiaoxia Zhang , Jing Sun , Taesang Yoo , Siddhartha Mallik
Abstract: Various aspects of the disclosure relate to power control for independent links. For example, power control at a device may be based on transmissions on multiple links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, power control for the first device may be based on power control commands received on multiple links. In some scenarios, a power control constraint may be met taking into account the transmission power on multiple links.
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公开(公告)号：US20180054382A1
公开(公告)日：2018-02-22
申请号：US15659574
申请日：2017-07-25
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Juan Montojo , Tamer Kadous , Junyi Li , Xiaoxia Zhang , Jing Sun , Taesang Yoo , Siddhartha Mallik
IPC: H04L12/761 , H04L12/18 , H03M13/09
Abstract: Various aspects of the disclosure relate to channel sensing for independent links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a first TRP) via a first link and communicate with a third device (e.g., a second TRP) via a second link. In some scenarios, first channel sensing information may be obtained for the first link and second channel sensing information may be obtained for the second link. In some aspects, a decision of whether to transmit via one or more of the links may be based on the channel sensing on one or more of the links. In some cases, the links may be grouped together as a channel sensing group.
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公开(公告)号：US20180019900A1
公开(公告)日：2018-01-18
申请号：US15485800
申请日：2017-04-12
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Wanshi Chen , Durga Prasad Malladi , Seyedkianoush Hosseini , Juan Montojo , Peter Gaal , Taesang Yoo , Yongbin Wei
IPC: H04L27/00 , H04L12/931 , H04L1/00 , H04W24/02 , H04L27/26 , H04L12/935
CPC classification number: H04L27/0012 , H04L1/0057 , H04L1/0059 , H04L1/0071 , H04L27/2601 , H04L49/201 , H04L49/3063 , H04W24/02
Abstract: Methods, systems, and devices for wireless communication are described that may perform dual stage channel interleaving in which code blocks are interleaved at the code block level and at a symbol level. The interleaved code block data may provide time diversity for the code block data, and the interleaved symbol data may provide frequency diversity for the code block data, thus helping to mitigate narrowband and/or bursty interference. The interleaving within the code block and interleaving within the symbols, in some examples, may allow pipelined implementation of decoding of the code blocks at the receiver, for faster processing. In some cases, systematic data and parity data may be interleaved within the code block data to provide a uniform distribution of the systematic data in time within the code block.
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公开(公告)号：US20170244586A1
公开(公告)日：2017-08-24
申请号：US15294531
申请日：2016-10-14
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Dinkar Vasudevan , Jing Sun , Xiaoxia Zhang , Juan Montojo
CPC classification number: H04L27/2607 , H04W24/10 , H04W72/042 , H04W74/0808
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may communicate using a dynamic cyclic prefix (CP) length to reduce communications overhead. That is, the wireless device may use a CP length that is changeable for each data packet or listen-before-talk (LBT) frame. For example, the wireless device may initially communicate using a first CP length and then receive a dynamic CP indication for subsequent symbols in one or more data packets or LBT frames. The wireless device may then communicate using the different CP length based on the indication. In some examples, the indicated dynamic CP length may be based on a cell radius of a base station, a data direction, or the location of a user equipment (UE) in relation to the base station.
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Patent Agency Ranking
196.发明申请公开(公告)号：US20170222661A1
公开(公告)日：2017-08-03
申请号：US15493038
申请日：2017-04-20
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Taesang Yoo , Tao Luo
CPC classification number: H03M13/255 , H03M13/09 , H03M13/1102 , H03M13/1105 , H03M13/2906 , H03M13/2957 , H03M13/35 , H03M13/353 , H03M13/356 , H03M13/6306 , H03M13/6513 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0058 , H04L1/0061 , H04L1/0066 , H04L1/007 , H04L1/0075 , H04L1/0083 , H04L1/08 , H04L1/1607 , H04L5/0055 , H04W84/042
Abstract: Techniques are described for wireless communication. One method includes segmenting a 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; and transmitting the codewords. The encoding is based at least in part on a low density parity check code (LDPCC) encoding type. Another method includes receiving a plurality of codewords associated with a payload encoded using a LDPCC encoding type; decoding a set of the codewords associated with the first payload and a CRC; and transmitting one of an acknowledgement (ACK) or a non-acknowledgement (NAK) for the set of the codewords.
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公开(公告)号：US09723497B2
公开(公告)日：2017-08-01
申请号：US14244739
申请日：2014-04-03
Applicant: QUALCOMM Incorporated
Inventor： Hao Xu , Tao Luo , Wanshi Chen , Peter Gaal , Taesang Yoo , Yongbin Wei , Durga Prasad Malladi , Tingfang Ji
IPC: H04L5/00 , H04W24/02 , H04J11/00 , H04W72/08 , H04B1/7103
CPC classification number: H04W24/02 , H04B1/7103 , H04J11/005 , H04L5/0053 , H04W72/082
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for network assisted interference cancellation (IC) and interference suppression (IS) for multiple services. According to aspects a user equipment (UE) may determine information regarding system parameters for one or more types of communications services used to transmit potentially interfering signals in one or more neighbor cells, wherein a type of the information determined depends on the type of communications service. The UE may perform interference management using the determined information to cancel or suppress interference caused by the potentially interfering signals.
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198.发明授权公开(公告)号：US09723496B2
公开(公告)日：2017-08-01
申请号：US14105086
申请日：2013-12-12
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Hendrik Schoeneich , Tao Luo , Yongbin Wei , Myriam Rajih , Durga Prasad Malladi
CPC classification number: H04W24/02 , H04B7/0678 , H04B7/068 , H04B7/0842 , H04J11/005 , H04L5/0058
Abstract: In order to cancel any interference due to the second signal (e.g., from a non-serving cell) from a signal received at a UE, without receiving additional control information, the UE blindly estimates parameters associated with decoding the second signal. This may include determining a metric based on sets of symbols associated with the signals in order to determine parameters for the second signal, e.g., the transmission mode, modulation format, and/or spatial scheme of the second signal. The parameters for the signal may be determined based on a comparison of the metric with a threshold. When a spatial scheme and a modulation format is unknown, the blind estimation may include determining a plurality of constellations of possible transmitted modulated symbols associated with a potential spatial scheme and modulation format combination. Interference cancellation can be performed using the constellations and a corresponding probability weight.
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公开(公告)号：US09692539B2
公开(公告)日：2017-06-27
申请号：US13659633
申请日：2012-10-24
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Taesang Yoo , Yongbin Wei
IPC: H04L1/00 , H04J11/00 , H04B1/7103
CPC classification number: H04J11/0023 , H04B1/7103 , H04B2201/7071
Abstract: Incremental interference cancelation (IC) capability management and signaling is disclosed. A mobile device selects certain groups of its individual IC capabilities to deactivate in response to various operating conditions it is experiencing. The mobile device reports its currently active IC capability to a serving base station, which uses information to determine whether to modify any existing communication conditions with respect to the reporting mobile device. The base station detects and analyzes the current communication conditions with respect to the reporting mobile device in light of the mobile device's currently active IC capabilities. The base station may modify such conditions through actions such as signaling the mobile device to activate or deactivate certain other groups of IC capabilities. The base station can make other modifications such as changing the communication schedule for the mobile device, modifying the control loop for channel quality indicator (CQI) reporting, and the like.
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公开(公告)号：US09686761B2
公开(公告)日：2017-06-20
申请号：US14181970
申请日：2014-02-17
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Xiliang Luo , Ke Liu
CPC classification number: H04W56/001 , H04J11/005 , H04J11/0069 , H04J11/0093 , H04W24/02 , H04W72/042
Abstract: Methods and apparatus for selecting samples for secondary synchronization signal (SSS) detection are described. Several alternatives are provided for efficient cell identifier detection. In a first alternative, multiple bursts of a signal received from a cell are sampled with non-uniform spacing between sampling intervals to determine a sequence for cell identification. In a second alternative, samples of a first and a second signal received from a stronger cell are cancelled, and a sequence for detecting a weaker cell is determined by reducing effects of the samples of a third signal received from the weaker cell which do not overlap with the primary synchronization signal (PSS) or SSS of the stronger cell. In a third alternative, a sequence for detecting a weaker cell is determined by reducing effects of any sampled bursts that correspond to a high transmission power portion of a signal from a stronger cell.
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