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公开(公告)号：US20210007173A1
公开(公告)日：2021-01-07
申请号：US16918610
申请日：2020-07-01
Applicant: Apple Inc.
Inventor： Li Su
Abstract: A user equipment (UE) establishes a connected discontinuous reception cycle including one or more onDurations with a currently camped base station. When the one or more onDurations is scheduled, the UE utilizes an active mode of processing and when the one or more onDurations are not scheduled the UE utilizes a sleep mode of inactivity. The UE receives an indication of a plurality of reference signals that are to be transmitted during a first onDuration, each reference signal is (i) to be included in a transmitter beam and (ii) associated with an uplink resource, receives a plurality of reference signals, each reference signal being associated with one of the transmitter beams, selects one of the plurality of transmitter beams based on measuring the included reference signal and transmits an indication of the selected one of the plurality of transmitter beams on the uplink resource associated with the included reference signal.
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公开(公告)号：US20200374834A1
公开(公告)日：2020-11-26
申请号：US16880572
申请日：2020-05-21
Applicant: Apple Inc.
Inventor： Haitong Sun , Dawel Zhang , Li Su , Tarik Tabet , Wei Zeng , Yuchul Kim
IPC: H04W68/02 , H04L5/00 , H04B17/318 , H04B1/3827 , H04W24/02
Abstract: Systems, apparatuses, and methods for coverage improvements in wireless communication devices. A wireless communication device may be configured to selectively receive one of a plurality of paging signals, or a portion thereof, based on measured or expected coverage quality of communications from a base station. In some scenarios, the wireless communication device may provide an indication to the base station of which paging signal the wireless communication device will attempt to receive, such that the base station may include paging information directed to that UE only in the indicated paging signal. In some scenarios, the base station may include paging information directed to that UE in a plurality of paging signals, each of the paging signals including a different number of repetitions of the paging information. In some scenarios, the UE may receive only a portion of a paging signal including a plurality of repetitions of the paging information.
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公开(公告)号：US20200304604A1
公开(公告)日：2020-09-24
申请号：US16084658
申请日：2017-09-29
Applicant: Apple Inc.
Inventor： Yingjie Zhao , Jianxiong Shi , Lele Cui , Li Su , Faraz Faheem
Abstract: Some embodiments relate to a user equipment device (UE), and associated methods for performing ROHC header compression on TCP packets with MPTCP option enabled. In some embodiments, a compressor may determine that a first portion of the stream of data packets is formatted according to the transmission control protocol (TCP) with a multipath TCP (MPTCP) option enabled. The compressor may establish context with a corresponding decompressor and may operate in one of three modes of compression based on the context. In some embodiments, when the context indicates that the corresponding decompressor supports decompression of TCP data packets with MPTCP option enabled, the compressor may operate in a first or second mode of compression. In some embodiments, when the context indicates that the corresponding decompressor does not support decompression of TCP data packets with MPTCP option enabled, the compressor may operation in a third mode of compression.
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公开(公告)号：US20200274751A1
公开(公告)日：2020-08-27
申请号：US15931873
申请日：2020-05-14
Applicant: Apple Inc.
Inventor： Yang Li , Tianyan Pu , Li Su , Zhu Ji
Abstract: This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for providing synchronization sequences. A first wireless device may transmit a preamble of a device-to-device wireless communication with a second wireless device. The preamble may include a first synchronization sequence. The first synchronization sequence may include multiple repetitions of a basis sequence, multiplied by a cover code. The basis sequence may span multiple orthogonal frequency division multiplexing symbols.
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公开(公告)号：US20200245251A1
公开(公告)日：2020-07-30
申请号：US16850335
申请日：2020-04-16
Applicant: Apple Inc.
Inventor： Li Su
IPC: H04W52/02
Abstract: Techniques are disclosed relating to wireless transmission energy budgets. In some embodiments, an apparatus is configured to determine wireless transmission energy budget for a plurality of time periods. In some embodiments, the apparatus determines budget differently depending on whether it is in a thermal mode or a peak power mode. In some embodiments, the apparatus blanks scheduled wireless transmissions that intersect with the battery signal. In some embodiments, for a time interval subsequent to assertion of the battery signal, the apparatus operates in the peak power mode and determines energy budget for periods based on an amount of energy used for wireless transmissions in a most recent period in which transmissions were blanked in response to the battery signal. In some embodiments, in the thermal mode, the energy budget is based on thermal information for the apparatus, but may also allow carryover of unused budget from previous periods.
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Patent Agency Ranking
公开(公告)号：US10687298B2
公开(公告)日：2020-06-16
申请号：US16363934
申请日：2019-03-25
Applicant: Apple Inc.
Inventor： Qiang Miao , Jianxiong Shi , Li Su , Wenping Lou
Abstract: Apparatus and methods to support parallel communication using multiple subscriber identities in a wireless communication device via multiple subscriber identity modules (SIMs) are disclosed. A representative method includes establishing a connection with a first wireless network via a first wireless cellular protocol software stack for a first subscriber identity associated with a first subscriber identity module; registering with a second wireless network via a second wireless cellular protocol software stack for a second subscriber identity associated with a second subscriber identity module; and receiving radio frequency signals from the second wireless network via the second wireless cellular protocol software stack in parallel with communicating with the first wireless network via the first wireless cellular protocol software stack. The first and second wireless cellular protocol software stacks share at least a portion of radio frequency wireless circuitry for communicating with the first and second wireless network respectively.
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117.发明授权公开(公告)号：US10667158B2
公开(公告)日：2020-05-26
申请号：US16229957
申请日：2018-12-21
Applicant: Apple Inc.
Inventor： Sami M. Almalfouh , Li Su , Sai Sravan Bharadwaj Karri , Chiranjeevi M. Kosuri , Karthik Chockalingam , Swaminathan Balakrishnan
IPC: H04W24/08 , H04W76/10 , H04B17/336 , H04W56/00
Abstract: This disclosure relates to radio link monitoring techniques. According to some embodiments, a wireless device may establish a radio link with a cellular base station according to a radio access technology. The base station may provide reference signals, control signals, and data signals to the wireless device via the radio link. The wireless device may perform radio link monitoring of the radio link using characteristics of decoding performance for one or more of the control signals and the data signals. Performing radio link monitoring of the radio link may include determining whether the radio link is in-sync or out-of-sync and determining whether radio link failure has occurred.
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公开(公告)号：US10575361B2
公开(公告)日：2020-02-25
申请号：US15883228
申请日：2018-01-30
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh
Abstract: This disclosure relates to techniques for fast switching between control channels during a radio resource control connection in a wireless communication system. A cellular base station and a wireless device may establish a radio resource control connection. The base station may provide a physical layer indication to the wireless device of a control channel to monitor for scheduling information. The base station may provide scheduling information to the wireless device on the indicated control channel. The wireless device may monitor the indicated control channel for scheduling information based at least in part on the physical layer indication and may receive the scheduling information provided by the base station on the indicated control channel.
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公开(公告)号：US10542551B2
公开(公告)日：2020-01-21
申请号：US15941073
申请日：2018-03-30
Applicant: Apple Inc.
Abstract: This disclosure relates to techniques for wireless devices to improve wireless communication technology coexistence characteristics using narrow band use awareness in a wireless communication system. A wireless device may attach to a serving cell according to a first radio access technology. A frequency range in active use by the wireless device for communication according to the first radio access technology may be determined. The frequency range may include less bandwidth than the system bandwidth of the serving cell. An indication of the frequency range may be provided from a portion of the wireless device implementing the first radio access technology to a portion of the wireless device implementing a second radio access technology. It may be determined whether to modify operation of the wireless device with respect to the second radio access technology based at least in part on the indication of the frequency range.
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120.发明申请公开(公告)号：US20190342856A1
公开(公告)日：2019-11-07
申请号：US16511242
申请日：2019-07-15
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh , Jianxiong Shi
Abstract: This disclosure relates to techniques for efficient idle mode wakeup for wireless devices supporting an enhanced coverage mode and a normal coverage mode in a wireless communication system. A wireless device may camp on a cellular base station in idle mode. The wireless device may monitor a control channel associated with the normal coverage mode during a paging occasion. The wireless device may also monitor a control channel associated with the enhanced coverage mode during the paging occasion if a paging indication is not successfully decoded on the control channel associated with the normal coverage mode.
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