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公开(公告)号：US20130324049A1
公开(公告)日：2013-12-05
申请号：US13910471
申请日：2013-06-05
Applicant: Apple Inc.
Inventor： Syed A. Mujtaba , William S. Burchill
IPC: H04B15/00
CPC classification number: G01J3/453 , G01J2003/4534 , G01N21/3504 , G01N2201/06113 , H04B1/406
Abstract: A method for facilitating in-device coexistence between radios is provided. The method can include a processor implemented on the wireless communication device defining a coexistence policy for a first radio and a second radio co-located on the wireless communication device; and providing the coexistence policy to a coexistence management controller on the first radio via an interface between the processor and the first radio. The method can further include the second radio providing state information for the second radio to the first radio via an interface between the first radio and the second radio. The method can additionally include the coexistence management controller on the first radio using the state information to control operation of the first radio in accordance with the coexistence policy to mitigate interference with the second radio.
Abstract translation: 提供了一种便于无线电设备间共存的方法。 该方法可以包括在无线通信设备上实现的处理器，其定义第一无线电的共存策略和位于无线通信设备上的第二无线电; 以及通过所述处理器和所述第一无线电之间的接口，向所述第一无线电装置上的共存管理控制器提供所述共存策略。 该方法还可以包括第二无线电通过第一无线电和第二无线电之间的接口向第一无线电提供第二无线电的状态信息。 该方法还可以使用状态信息在第一无线电中包括共存管理控制器，以根据共存策略来控制第一无线电的操作，以减轻与第二无线电的干扰。
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公开(公告)号：US20130310092A1
公开(公告)日：2013-11-21
申请号：US13663653
申请日：2012-10-30
Applicant: APPLE INC.
Inventor： Tarik Tabet , Paul V. Flynn , Syed A. Mujtaba , Navid Damji , Zhu Ji , Sreevalsan Vallath
CPC classification number: H04L1/0003 , Y02D50/10
Abstract: Outer loop link adaptation for device resumption. A user equipment (UE) and base station (BS) may be in communication in a first network (e.g., an LTE network). Communication between the UE and the BS may be interrupted, e.g., due to a long fading environment, the UE tuning away to a second network (e.g., a CDMA network). Accordingly, the measured error rate may increase dramatically. After resumption from the interruption, a negative offset may be applied to a reported SINR value from the UE due to the previous increase in error rate. Upon improvement in the error rate, a larger, positive offset adjustment may be added to the negative offset, allowing the estimated SINR to return to reported SINR more quickly. Additionally, the error rate estimation may be adjusted to converge to a more recently measured more quickly by decreasing a feedback filter coefficient.
Abstract translation: 用于设备恢复的外环链路自适应。 用户设备（UE）和基站（BS）可以在第一网络（例如，LTE网络）中进行通信。 UE和BS之间的通信可能被中断，例如由于漫长的衰落环境，UE调谐到第二网络（例如，CDMA网络）。 因此，测量的误码率可能会急剧增加。 在从中断恢复之后，由于错误率的先前增加，可能对来自UE的所报告的SINR值应用负偏移。 在改进误差率时，可以将更大的正偏移调整添加到负偏移，从而允许估计的SINR更快地返回到所报告的SINR。 此外，可以通过减小反馈滤波器系数来调整误差率估计以收敛到更近的测量更快。
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公开(公告)号：US10470126B2
公开(公告)日：2019-11-05
申请号：US15461162
申请日：2017-03-16
Applicant: APPLE INC.
Inventor： Joonsuk Kim , Syed A. Mujtaba , Xiaowen Wang
Abstract: In order to reduce power consumption of an electronic device during communication with another electronic device in a wireless local area network (WLAN), the electronic device analyzes fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet. For example, the information may include: a full associated identification (AID) of the destination, a partial media-access-control (MAC) address of the destination; and/or a compressed (MAC) address of the destination. The information may be included in the preamble of the given packet. In particular, the information may replace length information in a high-throughput signal field in the given packet. Moreover, if the destination is other than the electronic device, the electronic device dumps the given packet and changes a power state of the electronic device, thereby reducing the power consumption.
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公开(公告)号：US10206225B2
公开(公告)日：2019-02-12
申请号：US15850981
申请日：2017-12-21
Applicant: Apple Inc.
Inventor： Tarik Tabet , Vinay R. Majjigi , Christian W. Mucke , Syed A. Mujtaba
Abstract: The disclosure describes procedures for allocating network resources for a mobile device communicating within a Long Term Evolution (LTE) network. The mobile device can be configured to decode a physical downlink shared channel (PDSCH), acquire first and second physical downlink control channel (PDCCH) decode indicators from a payload of the same PDSCH communication, decode a PDCCH for downlink control information (DCI) associated with a first application data type based on the first PDCCH decode indicator a second application data type based on the second PDCCH decode indicator. The first PDCCH decode indicator can identify an upcoming LTE subframe where the mobile device is required to decode the PDCCH for DCI associated VoLTE resource assignments and the second PDCCH decode indicator can identify an upcoming LTE subframe where the mobile device is required to decode the PDCCH for DCI associated with high bandwidth best effort (BE) data resource assignments.
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65.发明授权公开(公告)号：US10149315B2
公开(公告)日：2018-12-04
申请号：US15014498
申请日：2016-02-03
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Tarik Tabet , Syed A. Mujtaba
IPC: H04W72/12 , H04W76/15 , H04L1/18 , H04L5/14 , H04W72/04 , H04W76/02 , H04L5/00 , H04W84/12 , H04W16/14 , H04L27/00
Abstract: Apparatus and methods for time division based communication between a wireless device and a wireless network in a licensed radio frequency (RF) band and an unlicensed RF band are disclosed. The wireless device receives downlink control information (DCI), via a primary component carrier (PCC) of a primary cell (Pcell) in the licensed RF band, indicating downlink (DL) data transmission via a secondary component carrier (SCC) of a secondary cell (Scell) in the unlicensed RF band. The wireless device receives via the SCC part of the DL data transmission and transmits a control message via the PCC in response. The wireless device sends a scheduling request (SR) to the eNodeB and receives uplink (UL) transmission opportunities in a combination of the licensed RF band and the unlicensed RF band. The wireless device performs a clear channel assessment before reserving and transmitting to the eNodeB in the unlicensed RF band.
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Patent Agency Ranking
公开(公告)号：US09960865B2
公开(公告)日：2018-05-01
申请号：US14152739
申请日：2014-01-10
Applicant: Apple Inc.
Inventor： Xiaowen Wang , Vinay R. Majjigi , Syed A. Mujtaba , Christopher J. Hansen
IPC: H04B17/318 , H04W48/16 , H04B17/26
CPC classification number: H04B17/318 , H04B17/26 , H04W48/16
Abstract: A station (STA) can receive messages (e.g., beacon frames) at a regular interval, and perform measurements on the received messages. The STA maintains a running average of recent measurement values, and updates the running average after each new measurement interval. At some measurement opportunities, the expected messages cannot be received by the STA, and so the STA cannot perform a measurement; when this occurs, the STA can choose substitute values to use for the missed measurements when next calculating the running average. As one example, the STA can substitute the value for a previously-performed measurement for the missed measurements. As another example, the STA can substitute a predetermined low value for the missed measurements. Based on the value of the running average at a given point in time, the STA can take actions such as initiating a roaming scan or switching to a different wireless interface.
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公开(公告)号：US09763051B2
公开(公告)日：2017-09-12
申请号：US15014487
申请日：2016-02-03
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Robert W. Mayor , Glenn D. MacGougan , Kumar Gaurav Chhokra , Syed A. Mujtaba , Dawei Zhang , Tarik Tabet
Abstract: Apparatus and methods for estimating a location of a wireless device in communication with a wireless network, such as an LTE/LTE-A network, based at least in part on WLAN/WPAN AP measurements and/or barometric measurements are disclosed. The wireless device responds to a location capability inquiry from the wireless network by providing a response that indicates the wireless device is configurable to estimate its location based on WLAN/WPAN AP and/or barometric measurements. The wireless network sends WLAN/WPAN AP and/or barometric reference information to the wireless device to assist in estimating its location. The wireless device measures one or more WLAN/WPAN APs, and the wireless device uses the WLAN/WPAN AP and/or barometric measurements to estimate its location. In some embodiments, GPS/GNSS information is used in conjunction with WLAN/WPAN AP and/or barometric measurements to estimate the location of the wireless device.
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公开(公告)号：US09763050B2
公开(公告)日：2017-09-12
申请号：US15014477
申请日：2016-02-03
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Robert W. Mayor , Glenn D. MacGougan , Kumar Gaurav Chhokra , Syed A. Mujtaba , Dawei Zhang , Tarik Tabet
Abstract: Apparatus and methods for estimating a location of a wireless device in communication with a wireless network, such as a UMTS network, based at least in part on WLAN/WPAN AP measurements and/or barometric measurements are disclosed. The wireless device responds to a location capability inquiry from the wireless network by providing a response that indicates the wireless device is configurable to estimate its location based on WLAN/WPAN AP and/or barometric measurements. The wireless network sends WLAN/WPAN AP and/or barometric reference information to the wireless device to assist in estimating its location. The wireless device measures one or more WLAN/WPAN APs, and the wireless device uses the WLAN/WPAN AP and/or barometric measurements to estimate its location. In some embodiments, GPS/GNSS information is used in conjunction with WLAN/WPAN AP and/or barometric measurements to estimate the location of the wireless device.
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69.发明授权公开(公告)号：US09622147B2
公开(公告)日：2017-04-11
申请号：US14483855
申请日：2014-09-11
Applicant: APPLE INC.
Inventor： Joonsuk Kim , Yuchul Kim , Syed A. Mujtaba
CPC classification number: H04W40/22 , H04L1/0061 , H04L1/1845 , H04L1/1864 , H04L1/189 , H04L45/70 , H04W24/08 , H04W84/12
Abstract: A method and device for decoding packets received via a wireless local area network. The method performed by the device including receiving a packet, the packet including a signal portion and a data portion, verifying the signal portion of the packet is valid, determining if the packet is destined for the device, determining if the packet is a retransmission, combining, when the packet is a retransmission, information from the data portion of the packet with stored information from a previously received packet having a data portion that was not successfully decoded and attempting to decode the packet based at least in part on the information and stored information.
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公开(公告)号：US09603092B2
公开(公告)日：2017-03-21
申请号：US14138659
申请日：2013-12-23
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Syed A. Mujtaba , Xiaowen Wang
CPC classification number: H04W52/0238 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144
Abstract: In order to reduce power consumption of an electronic device during communication with another electronic device in a wireless local area network (WLAN), the electronic device analyzes fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet. For example, the information may include: a full associated identification (AID) of the destination, a partial media-access-control (MAC) address of the destination; and/or a compressed (MAC) address of the destination. The information may be included in the preamble of the given packet. In particular, the information may replace length information in a high-throughput signal field in the given packet. Moreover, if the destination is other than the electronic device, the electronic device dumps the given packet and changes a power state of the electronic device, thereby reducing the power consumption.
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