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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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公开(公告)号：US09743452B2
公开(公告)日：2017-08-22
申请号：US14498861
申请日：2014-09-26
Applicant: Apple Inc.
Inventor： Li Su , Tarik Tabet , Navid Damji
CPC classification number: H04W76/16 , H04W72/042 , H04W88/06
Abstract: Methods, apparatuses and computer-readable media are described that configure wireless circuitry of a wireless device. The wireless device establishes a connection to a first wireless network using first and second receiving signaling chains. The wireless device obtains a configuration processing delay time for the first wireless network and sends a first channel status report having a rank indicator value of one before starting a tune-away event at a time based on the obtained configuration processing delay time. The wireless device reconfigures at least one of the radio frequency signaling chains to receive signals from a second wireless network during the tune-away event. The wireless device subsequently sends a second channel status report having a rank indicator value greater than one before ending the tune-away event and reconfiguring the at least one of the radio frequency receive signaling chains back to the first wireless network.
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公开(公告)号：US20170238210A1
公开(公告)日：2017-08-17
申请号：US15584433
申请日：2017-05-02
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Tarik Tabet , Dawei Zhang
Abstract: This disclosure relates to use of WLAN virtual interfaces. According to one embodiment, a wireless device may be capable of using a WLAN chipset for user initiated WLAN communication and for cellular offloading WLAN communication. A separate WLAN virtual interface may be established for each type of WLAN communication, including a first WLAN virtual interface between the WLAN chipset and a WLAN connectivity manager executing on an application processor of the wireless device and a second WLAN virtual interface between the WLAN chipset and a cellular connectivity manager executing on the application processor. The virtual interfaces may each use a different IP address, and may either multiplex data onto a shared RF chain in a time-sharing manner or each be provided with their own RF chain to perform WLAN communication.
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公开(公告)号：US09681395B2
公开(公告)日：2017-06-13
申请号：US15349816
申请日：2016-11-11
Applicant: Apple Inc.
Inventor： Tarik Tabet , Samy Khay-Ibbat , Awais M. Hussain
CPC classification number: H04W52/241 , H04L5/005 , H04L5/0057 , H04W52/262 , H04W52/32 , H04W72/0473 , H04W72/048 , H04W72/085
Abstract: A link-budget-limited wireless communication device (UE) may implement improved radio link monitoring procedures for enhancing the link-budget of the UE. The UE may monitor the radio link and may determine whether the radio link can support a lowest acceptable link quality according to a hysteresis-based comparison that uses threshold values to determine error rates associated with a physical control channel. The UE may also identify itself to the network as a link-budget-limited device, and the network may enable special link-budget enhancing features for the UE, including boosting the power of the resource elements (REs) carrying physical channel signaling/data to the UE. The UE may detect the presence of power boost and may estimate/determine the power boost level. The UE may modify the threshold values based on the power boost detection and/or results of the power boost level estimation/determination, and may use the modified threshold values for determining radio link quality during radio link monitoring.
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Patent Agency Ranking
公开(公告)号：US20170164380A1
公开(公告)日：2017-06-08
申请号：US15435643
申请日：2017-02-17
Applicant: APPLE INC.
Inventor： Ajoy K. Singh , Tarik Tabet , Sarma V. Vangala
CPC classification number: H04W72/10 , H04W16/32 , H04W72/02 , H04W72/0453 , H04W72/1231 , H04W72/1242 , H04W76/15 , H04W92/20
Abstract: Described herein are systems and methods to enhance radio link performance in a multi-carrier environment. A method may comprise sending, by an upper level layer of a wireless device, user data in a packet for transmission, wherein the packet includes an indication of a level of priority of the packet, receiving, by a media access control (“MAC”) layer of the wireless device, the packet for transmission including the indication of the level of priority provided by the upper level layer, identifying, by the MAC layer, a reliability of each of a plurality of component carriers, and selecting, by the MAC layer, one of the component carriers on which to transmit the packet, wherein the selecting is based on the level of priority of the packet and the reliability of the one of the component carriers.
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公开(公告)号：US09648633B2
公开(公告)日：2017-05-09
申请号：US14496521
申请日：2014-09-25
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Tarik Tabet , Dawei Zhang
Abstract: This disclosure relates to use of WLAN virtual interfaces. According to one embodiment, a wireless device may be capable of using a WLAN chipset for user initiated WLAN communication and for cellular offloading WLAN communication. A separate WLAN virtual interface may be established for each type of WLAN communication, including a first WLAN virtual interface between the WLAN chipset and a WLAN connectivity manager executing on an application processor of the wireless device and a second WLAN virtual interface between the WLAN chipset and a cellular connectivity manager executing on the application processor. The virtual interfaces may each use a different IP address, and may either multiplex data onto a shared RF chain in a time-sharing manner or each be provided with their own RF chain to perform WLAN communication.
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428.发明授权公开(公告)号：US09622184B2
公开(公告)日：2017-04-11
申请号：US14492724
申请日：2014-09-22
Applicant: Apple Inc.
Inventor： Vinay R. Majjigi , Tarik Tabet , Christian W. Mucke
CPC classification number: H04W52/12 , H04W52/146 , H04W52/247 , H04W52/265 , H04W52/343 , H04W52/367
Abstract: This disclosure relates to reducing power consumption for cellular communication based on transport block size in combination with channel condition measurements for applications with certain application characteristics. In one embodiment, a transport block size for use for uplink communication with a base station by a wireless device may be selected. The transport block size may provide more robust communication characteristics than required for current channel conditions. The transport block size may be selected based on application characteristics of an application performing the uplink communication. A transmit power for the wireless device to use for the uplink communication may be selected based on the transport block size providing more robust communication characteristics than required for the current channel conditions. In particular, transport power selection may be biased towards a reduced transmit power based on the transport block size providing more robust communication characteristics than required for the current channel conditions.
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公开(公告)号：US09621310B2
公开(公告)日：2017-04-11
申请号：US14496385
申请日：2014-09-25
Applicant: Apple Inc.
Inventor： Vinay Majjigi , Tarik Tabet , Dawei Zhang
CPC classification number: H04W72/0446 , H04L1/1812 , H04L1/1819 , H04L1/1893 , H04L1/1896 , H04L5/0005 , H04L5/0055 , H04W72/042 , H04W88/08
Abstract: This disclosure relates to TTI bundling for downlink communication. According to one embodiment, a base station and a wireless device may establish a wireless communication link. The base station may determine to enable TTI bundling for downlink communication for at least one carrier of the wireless communication link. The base station may provide an indication to the wireless device to enable TTI bundling for downlink communication for the determined carrier(s) of the wireless communication link. The base station may subsequently transmit TTI bundle downlink communications to the wireless device via the determined carrier(s).
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公开(公告)号：US20170064593A1
公开(公告)日：2017-03-02
申请号：US15225012
申请日：2016-08-01
Applicant: Apple Inc.
Inventor： Samy Khay-Ibbat , Tarik Tabet
CPC classification number: H04W36/04 , H04W24/02 , H04W24/10 , H04W36/0083 , H04W36/24 , H04W36/30 , H04W48/16 , H04W48/18 , H04W48/20 , H04W88/02
Abstract: Some embodiments relate to a user equipment (UE) configured to modify at least one signal strength threshold value to provide improved operation for link budget limited devices when performing cell selection or reselection. In some embodiments, the UE may receive a threshold value indicating a minimum received signal strength for camping on a cell. The UE may determine an offset value based on operating parameters of the UE, and may determine a modified threshold value by applying the offset value to the received threshold value. The UE may then compare the modified threshold value to a signal strength measurement of a signal received from a base station associated with the cell. The UE may camp on the cell if the modified threshold value is less than the signal strength measurement, and not camp on the cell if the modified threshold value is greater than the signal strength measurement.
Abstract translation: 一些实施例涉及被配置为修改至少一个信号强度阈值的用户设备（UE），以在执行小区选择或重选时为链路预算受限设备提供改进的操作。 在一些实施例中，UE可以接收指示用于在小区上露营的最小接收信号强度的阈值。 UE可以基于UE的操作参数来确定偏移值，并且可以通过将偏移值应用于接收到的阈值来确定修改的阈值。 然后，UE可以将修改的阈值与从与该小区相关联的基站接收到的信号的信号强度测量进行比较。 如果修改的阈值小于信号强度测量，则UE可以驻留在小区上，并且如果修改的阈值大于信号强度测量，则UE不驻留在小区上。
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