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公开(公告)号：US20200163073A1
公开(公告)日：2020-05-21
申请号：US16749553
申请日：2020-01-22
Applicant: Apple Inc.
Inventor： Yang Li , Haitong Sun , Zhu Ji , Yuchul Kim , Beibei Wang , Wei Zhang , Wei Zeng , Jia Tang , Tianyan Pu , Sami M. Almalfouh , Johnson O. Sebeni , Dawei Zhang
Abstract: Apparatuses, systems, and methods for a wireless device to perform user equipment (UE) initiated beam management procedures with a base station or gNB. A wireless device in communication with a 5G base station may detect degradation in the pair of transmit and receive beams between the gNB and the device. The device may select a preferred beam management procedure and indicate the preference to the gNB.
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292.发明授权公开(公告)号：US10548043B2
公开(公告)日：2020-01-28
申请号：US16145462
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Wei Zhang , Tianyan Pu , Yang Li , Haitong Sun , Wei Zeng , Jia Tang , Beibei Wang , Sami M. Almalfouh , Zhu Ji , Johnson O. Sebeni , Yuchul Kim , Dawei Zhang
Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.
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公开(公告)号：US20190313382A1
公开(公告)日：2019-10-10
申请号：US16371465
申请日：2019-04-01
Applicant: Apple Inc.
Inventor： Haitong Sun , Yuchul Kim , Johnson O. Sebeni , Wei Zeng , Wei Zhang , Dawei Zhang
Abstract: Techniques are disclosed relating to control data for retransmissions in wireless communications. In various embodiments, a UE sends acknowledgements (e.g., HARQ acknowledgements) at code block group (CBG) granularity. CBGs may be included in codewords that may be transmitted using multiple MIMO layers. In some embodiments, the network is configured to send a new data indicator for each CBG. In some embodiments, the network is configured to use a different number of layers for a retransmission of a CBG than for the original transmission. Thus, the layer-to-CBG or layer-to-codeword mapping may be specified dynamically. In various embodiments, the disclosed techniques may improve overall network bandwidth relative to traditional retransmission techniques.
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公开(公告)号：US20190306856A1
公开(公告)日：2019-10-03
申请号：US16357844
申请日：2019-03-19
Applicant: Apple Inc.
Inventor： Zhu Ji , Yang Li , Yuchul Kim , Johnson O. Sebeni , Sami M. Almalfouh , Wei Zeng , Dawei Zhang
Abstract: Apparatuses, systems, and methods to dynamically indicate preference for self-contained slots and slot duration by a user equipment device (UE) in communication with a base station (e.g., a gNB) using a 5G NR radio access technology. A UE may determine to send an indication to a gNB indicating a preference for self-contained slots and slot duration for downlink and/or uplink communications utilizing one or more of the physical downlink control channel (PDCCH), the physical downlink shared channel (PDSCH), and/or acknowledgement messaging (ACK/NACK) for downlink communications, and utilizing one or more of the physical uplink control channel (PUCCH), the PDCCH, and/or the physical uplink shared channel (PUSCH) for uplink communications. The configuration of self-contained slots and slot duration for uplink and/or downlink may be based on one or more of average packet size, average packet rate, traffic type and UE processing capabilities.
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公开(公告)号：US20190254120A1
公开(公告)日：2019-08-15
申请号：US16245389
申请日：2019-01-11
Applicant: Apple Inc.
Inventor： Wei Zhang , Haitong Sun , Wei Zeng , Yuchul Kim , Dawei Zhang , Sami M. Almalfouh , Johnson O. Sebeni
CPC classification number: H04W88/10 , H04B7/0413 , H04B7/0617 , H04W4/80 , H04W16/28 , H04W24/08 , H04W28/06 , H04W72/042 , H04W72/046 , H04W80/02
Abstract: A hierarchical beamforming structure may help reduce network traffic overhead for transmission of beam indication (information) and enable efficient Transmission Configuration Indication, while facilitating beam tracking between a base station(s) and a mobile device(s) during downlink communications. Downlink control information (DCI) may be expanded to carry/transmit a beam/QCL (quasi co-location) indication for a control resource set (CORESET) for monitoring a next instance of a physical control channel. Error resilient design techniques may be employed to further improve device mobility while increasing the flexibility and reducing the latency for GC-PDCCH/PDCCH beam/QCL indications. For example, the aggregation level for select DCI (e.g. DCI in which the GC-PDCCH/PDCCH beam indication has changed) may be increased, the transmission of such select DCI may be limited to a certain (specified) aggregation level, and in case discontinuous transmission (DTX) is received, the base station may transmit both old and new beam/QCL indications.
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Patent Agency Ranking
公开(公告)号：US10153868B2
公开(公告)日：2018-12-11
申请号：US15178373
申请日：2016-06-09
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Yuchul Kim , Syed A. Mujtaba
IPC: H04L1/18 , H04L1/00 , H04L12/741 , H04W84/12
Abstract: Apparatus and methods for a hybrid automatic repeat request (H-ARQ) mechanism for wireless communication devices of a wireless local area network (WLAN) are disclosed. Methods and apparatus to determine whether a packet is an original, first transmission or a retransmission of a previously transmitted packet without decoding the payload of the packet are disclosed. Medium access control (MAC) addresses of a transmitter, such as an access point (AP), and a receiver, such as a station (STA), of a WLAN are encoded separately with a retransmission bit to indicate whether the packet is retransmitted. For an aggregated MAC protocol data unit (A-MPDU), a sequence number is included to determine which MAC protocol data units (MPDUs) of the A-MPDU are retransmitted. When retransmission is indicated, the receiver of the STA performs a hybrid automatic repeat request (H-ARQ) process to combine the retransmitted packet with previously received packets.
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公开(公告)号：US20180324023A1
公开(公告)日：2018-11-08
申请号：US15964156
申请日：2018-04-27
Applicant: Apple Inc.
Inventor： Wei Zeng , Yuchul Kim , Dawei Zhang
Abstract: This disclosure relates to providing synchronization signal block index signaling in a cellular communication system. A cellular base station may provide synchronization signals according to a periodic pattern, including transmitting one or more synchronization signal bursts each including one or more synchronization signal blocks. A wireless device may detect a synchronization signal block. The wireless device may determine a synchronization signal block index of the detected synchronization signal block. The wireless device may provide an indication of the synchronization signal block index of the detected synchronization signal block to the cellular base station.
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公开(公告)号：US20180278374A1
公开(公告)日：2018-09-27
申请号：US15920667
申请日：2018-03-14
Applicant: Apple Inc.
Inventor： Wei Zeng , Yuchul Kim , Dawei Zhang , Christian W. Mucke
CPC classification number: H04L1/1812 , H04L1/1822 , H04L1/1835 , H04L1/1896 , H04L5/0007 , H04L5/0044 , H04L5/0053 , H04L5/0055 , H04W8/24 , H04W72/0446 , H04W72/048 , H04W88/02
Abstract: This disclosure relates to indicating capabilities of a user equipment to a base station while performing cellular communication. A user equipment (UE) may transmit capability information to a base station. The capability information may comprise a maximum transport block size (TBS) per transmission time interval (TTI) and an associated processing delay of the UE for a reference subcarrier spacing. Alternatively, the capability information may comprise a maximum throughput and associated processing delay of the UE. The base station may determine at least one of a maximum TBS per TTI or a number of parallel hybrid automatic repeat request (HARQ) processes to utilize in subsequent communications with the UE based on the capability information and a subcarrier spacing to be used for the subsequent communications.
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公开(公告)号：US09544892B2
公开(公告)日：2017-01-10
申请号：US14500509
申请日：2014-09-29
Applicant: APPLE INC.
Inventor： Youngjae Kim , Yuchul Kim
CPC classification number: H04W72/042 , H04L5/001 , H04L5/0046 , H04L5/0048 , H04L5/0053 , H04L5/0094
Abstract: A method performed at a base station and a corresponding method performed at a station receiving a transmission from the base station. The methods relate to signaling the station as to a number of PDCCH information that is included in the transmission so the station may terminate a search when the station has identified the PDCCHs in the transmission. The method performed by the station includes receiving the transmission that includes at least one PDCCH information, each PDCCH information having a respective mapped downlink control information (DCI). The method further includes detecting one of the PDCCH information in the transmission and determining lengths of information bits of the DCI and the PDCCH information. The method also includes terminating a search for a further one of the PDCCH information when a first type of padding is used for the mapping of the DCI over the PDCCH information based on the lengths.
Abstract translation: 在基站执行的方法和在从基站接收传输的站执行的相应方法。 所述方法涉及向站点发信号通知包括在传输中的多个PDCCH信息，因此当站已经识别出传输中的PDCCH时，站可以终止搜索。 由所述站执行的方法包括接收包括至少一个PDCCH信息的传输，每个PDCCH信息具有相应的映射下行链路控制信息（DCI）。 该方法还包括检测传输中的PDCCH信息之一，并确定DCI和PDCCH信息的信息比特长度。 该方法还包括当第一类型的填充用于基于该长度的PDCCH信息上的DCI的映射时，终止对另一个PDCCH信息的搜索。
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公开(公告)号：US09386488B2
公开(公告)日：2016-07-05
申请号：US14954626
申请日：2015-11-30
Applicant: Apple Inc.
Inventor： Tarik Tabet , Syed A. Mujtaba , Xiaowen Wang , Paul Flynn , Kee-Bong Song , Vinay Majjigi , Youngjae Kim , Yuchul Kim , Christian Mucke
CPC classification number: H04W36/0066 , H04W36/0088 , H04W76/28 , H04W88/06
Abstract: Managing radio resources across dual networks includes a wireless mobile device connecting to a first wireless network using a first radio access technology. The wireless device may notify the first network of a capability to be temporarily non-responsive to the first network while maintaining a signaling connection to the first network. The wireless device may communicate with a second network. The wireless device may return to communicating with the first network subsequent to communicating with the second network, and in response to communicating with the second network for less than a predetermined amount of time, the wireless device may send a scheduling request to the first network. In response to receiving a grant acknowledgement from the first network, the wireless device may send a buffer status report that includes a value such as zero to indicate that the wireless device has returned to and can communicate with the first network.
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