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公开(公告)号：US20150085685A1
公开(公告)日：2015-03-26
申请号：US14488499
申请日：2014-09-17
Applicant: Apple Inc.
Inventor： Vinay R. Majjigi , Tarik Tabet , Christian W. Mucke , Syed Aon Mujtaba
CPC classification number: H04W24/10 , H04L25/0202 , H04L25/0206
Abstract: This disclosure relates to application dependent channel condition assessment mode selection for reduced power consumption in cellular communications. In one embodiment, a channel condition assessment mode may be selected for assessing a wireless communication channel used for a cellular link. The channel condition assessment mode may be selected from at least two channel condition assessment modes, and may be selected at least in part based on application characteristics of an application using the cellular link. Channel condition assessment may be performed according to the selected channel condition assessment mode. Channel condition assessment results obtained from the channel condition assessment may be transmitted to a cellular base station via the cellular link.
Abstract translation: 本公开涉及基于应用的信道条件评估模式选择，以减少蜂窝通信中的功耗。 在一个实施例中，可以选择信道条件评估模式来评估用于蜂窝链路的无线通信信道。 信道条件评估模式可以从至少两个信道条件评估模式中选择，并且可以至少部分地基于使用蜂窝链路的应用的应用特征来选择。 可以根据所选择的信道条件评估模式来执行信道条件评估。 从信道条件评估获得的信道条件评估结果可以经由蜂窝链路发送到蜂窝基站。
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142.发明申请Uplink and/or Downlink Testing of Wireless Devices in a Reverberation Chamber 审中-公开混响室中无线设备的上行链路和/或下行链路测试公开(公告)号：US20130303089A1
公开(公告)日：2013-11-14
申请号：US13651823
申请日：2012-10-15
Applicant: APPLE INC.
Inventor： Xiaowen Wang , Weiping Dou , Warren Lee , Zhaojun Cheng , Syed Aon Mujtaba
IPC: H04W24/00
Abstract: A system and method for wireless device testing. The system includes a reverberation chamber (RC) and a downlink channel emulator. A wireless device is placed within the RC. Probe antennas are positioned within the RC. The downlink (DL) channel emulator couples to the probe antennas. The DL channel emulator is configured to: (a) receive downlink stimulus signals; and (b) generate downlink intermediate signals based on the downlink stimulus signals in order to emulate desired downlink channel characteristics. The probe antennas are configured to respectively transmit the downlink intermediate signals into the RC for reception by the wireless device. The system may also include an uplink channel emulator, which receives uplink transmit signals from the RC, and generates uplink terminal signals based on the uplink transmit signals in order to emulate desired uplink channel characteristics. The uplink transmit signals may be used to evaluated the performance of the wireless device.
Abstract translation: 一种用于无线设备测试的系统和方法。 该系统包括混响室（RC）和下行链路信道仿真器。 无线设备放置在RC内。 探头天线位于RC内。 下行链路（DL）信道仿真器耦合到探测天线。 DL通道仿真器被配置为：（a）接收下行链路刺激信号; 并且（b）基于下行链路刺激信号生成下行链路中间信号，以便模拟期望的下行链路信道特性。 探测天线被配置为分别将下行链路中间信号发送到RC以供无线设备接收。 该系统还可以包括上行链路信道仿真器，其从RC接收上行链路发送信号，并且基于上行链路发送信号生成上行链路终端信号，以便模拟期望的上行链路信道特性。 上行链路传输信号可以用于评估无线设备的性能。
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公开(公告)号：US12245083B2
公开(公告)日：2025-03-04
申请号：US18451686
申请日：2023-08-17
Applicant: Apple Inc.
Inventor： Tarik Tabet , Awais M. Hussain , Lydi Smaini , Moustafa M. Elsayed , Syed Aon Mujtaba , Matthias Sauer , Ronald W. Dimpflmaier , Bernd W. Adler , Christian W. Mucke
Abstract: A user equipment (UE) device may communicate according to a new device category satisfying specified QoS (quality of service) requirements while also satisfying specified link budget requirements, and/or additional optimization requirements. The UE device may communicate with a cellular base station according to a first mode of operation associated with the new device category, and may switch to communicating with the cellular base station according to a second mode of operation associated with a second (pre-existing) device category in response to the link budget requirements exceeding a specified value and the quality of service requirements not being sensitive. The UE device may also switch to communicating with the cellular base station according to a third mode of operation associated with a third (pre-existing) device type in response to the link budget requirement not exceeding the specified value, or the QoS requirements being sensitive and a downlink throughput requirement exceeding a specified throughput value.
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公开(公告)号：US12047177B2
公开(公告)日：2024-07-23
申请号：US17157469
申请日：2021-01-25
Applicant: Apple Inc.
Inventor： Tarik Tabet , Youngjae Kim , Syed Aon Mujtaba
IPC: H04L1/16 , H04L1/1607 , H04L1/18 , H04L1/1812 , H04L1/1867 , H04L5/00 , H04W72/23
CPC classification number: H04L1/1812 , H04L1/1657 , H04L1/1671 , H04L1/1896 , H04L5/0055 , H04L5/006 , H04W72/23
Abstract: Mobile devices, base stations, and/or relay stations may implement a method for an improved and reliable automatic repeat request feedback indication. A mobile device (UE) may establish communication within a wireless network, and indicate to the network that the UE is a special type device, e.g. a constrained device. The network (base station) may then not send an indication on a physical indicator channel to the UE when certain conditions are met, and instead, the mobile device may interpret control information received from the network on a physical control channel as a negative acknowledgment indication corresponding to an automatic repeat request from the network. The UE may then perform a retransmission according to the interpreted control information. A new control information format may be used to further define how the network and UE implement the automatic repeat request process, to reduce the total number of bits required in the control information.
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公开(公告)号：US11546892B2
公开(公告)日：2023-01-03
申请号：US16057906
申请日：2018-08-08
Applicant: Apple Inc.
Inventor： Tarik Tabet , Syed Aon Mujtaba
Abstract: A user equipment (UE) and base station may implement improved communication methods which enable a UE that is peak current limited to perform UL transmissions which are consistent with the UL timeline. A UE that is peak current limited may utilize a new form of distributed TTI (transmit time interval) bundling for improved uplink communication performance. In performing “distributed” TTI bundling, the UE may transmit a plurality of redundancy versions of first information to the base station, wherein the plurality of redundancy versions are transmitted in non-consecutive sub-frames with a periodicity of X ms. After the plurality of redundancy versions of first information are transmitted to the base station, the base station may provide a single acknowledge/negative acknowledge (ACK/NACK) to the UE. A method for dynamically generating and using a bundle size for TTI bundling is also disclosed.
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Patent Agency Ranking
公开(公告)号：US11375420B2
公开(公告)日：2022-06-28
申请号：US16991814
申请日：2020-08-12
Applicant: Apple Inc.
Inventor： Tarik Tabet , Farouk Belghoul , Samy Khay-Ibbat , Sarma V. Vangala , Rafael L. Rivera-Barreto , David Boettger , Awais M. Hussain , Syed Aon Mujtaba
IPC: H04W36/00 , H04B17/382 , H04B17/336
Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.
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147.发明授权公开(公告)号：US11190330B2
公开(公告)日：2021-11-30
申请号：US16443952
申请日：2019-06-18
Applicant: Apple Inc.
Inventor： Tarik Tabet , Syed Aon Mujtaba , Samy Khay-Ibbat , Rafael L. Rivera-Barreto
Abstract: A user equipment (UE) and network entity implement improved communication methods which enable a UE to operate using differing modes of operation without detaching from a network. The UE may send first information indicating its capabilities to the network entity and may receive a first indication based on the first information. The first indication may indicate that the UE operate according to a first mode of operation. The UE may receive a second indication based on an occurrence of a first condition detectable at the network entity. The second indication may indicate that the UE operate according to a second mode of operation different from the first mode of operation. The first condition may be an initialization of a real time data packet session for the UE or may be a first message sent by the UE in response to one or more radio conditions exceeding a threshold.
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148.发明授权公开(公告)号：US11070985B2
公开(公告)日：2021-07-20
申请号：US16822123
申请日：2020-03-18
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Lydi Smaini , Tarik Tabet , Syed Aon Mujtaba
IPC: H04W16/14 , H04W74/08 , H04L27/26 , H04L27/00 , H04L5/00 , H04W72/04 , H04W74/00 , H04W24/08 , H04W84/12
Abstract: This disclosure relates to performing cellular communication in unlicensed spectrum in a manner that accounts for the possible existence of hidden nodes by opportunistically introducing the use of RTS and CTS messages. A listen-before-talk procedure may be performed to determine whether a wireless medium is available. When the listen-before-talk procedure is complete, an amount of time until a next possible start time for communicating in the cellular communication system according to a timing synchronization scheme for the cellular communication system may be determined. The wireless medium may be occupied until the next possible start time for communicating in the cellular communication system in a manner selected based at least in part on the amount of time until the next possible start time for communicating in the cellular communication system. Cellular communication may be performed on the wireless medium at the next possible start time for communicating in the cellular communication system.
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公开(公告)号：US11039417B2
公开(公告)日：2021-06-15
申请号：US16665069
申请日：2019-10-28
Applicant: Apple Inc.
Inventor： Tarik Tabet , Syed Aon Mujtaba , Moustafa M. Elsayed
Abstract: For paging user devices that are link budget limited (LBL), a base station transmits a special ID that is used by said devices to identify a paging frame and/or a paging occasion. When transmitting a paging message for an LBL device, the base station may use: (a) larger aggregation and larger CFI (than conventionally allowed) and (b) a larger number of resource blocks (than conventionally allowed) for paging payload. If paging messages for LBL devices saturate the paging frame capacity, the base station may allocate a plurality of special IDs. If paging messages for LBL devices and/or other data transfers saturate network capacity, at least a subset of the LBL devices may be directed to enter a connected-state discontinuous reception (DRX) mode, wherein those devices will remain in connected mode and periodically check for resource allocations. Paging payload information may be repeatedly transmitted in successive subframes, to support soft combining.
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公开(公告)号：US10708915B2
公开(公告)日：2020-07-07
申请号：US15147365
申请日：2016-05-05
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Guoqing Li , Syed Aon Mujtaba
Abstract: Systems and methods of providing control information to wireless devices accessing a wireless network are provided. According to some embodiments, a method of wireless communication is provided. According to the method, a first wireless communication channel is assigned to a first wireless device. A second wireless communication channel is assigned to a second wireless device. A third wireless communication channel is designated for use as a control channel that is common to the first and second wireless devices and control information is transmitted to the first and second wireless devices via the third wireless communication channel.
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