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公开(公告)号:US20230276520A1
公开(公告)日:2023-08-31
申请号:US17438281
申请日:2021-01-14
Applicant: Apple Inc.
Inventor: Fangli Xu , Dawei Zhang , Haijing Hu , Murtaza A. Shikari , Ralf Rossbach , Sarma V. Vangala , Srinivasan Nimmala
Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform a method for supporting a periodical radio access network (RAN) notification area (RNA) mechanism when small data transmission (SDT) is enabled for a user equipment device (UE). The method may include the UE receiving, from a base station, an indication enabling an SDT procedure along with an indication of an RNA timer configuration, transitioning, to a radio resource control (RRC) inactive state, and initiating an RNA timer based on the RNA timer configuration. The UE may, upon initiation of the SDT procedure, stop the RNA timer and, upon termination of the SDT procedure, start the RNA timer. During the SDT procedure, the UE may receive any of an SDT termination indication, an SDT subsequent transmission indication, or an SDT subsequent transmission termination indication that may include an updated RNA timer configuration (and/or RNA timer reconfiguration).
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公开(公告)号:US11743917B2
公开(公告)日:2023-08-29
申请号:US17536303
申请日:2021-11-29
Applicant: Apple Inc.
Inventor: Johnson O. Sebeni , Yang Li , Zhu Ji , Yuchul Kim , Wei Zeng , Dawei Zhang , Haijing Hu , Xiangying Yang , Li Su
CPC classification number: H04W72/23 , H04W52/0209 , H04W52/0216 , H04W76/28 , H04W84/042
Abstract: A downlink control information (DCI), such as a blanking DCI (bDCI) message may be transmitted by a base station (e.g., eNB) and received by a mobile device (e.g., UE). The bDCI may indicate that the eNB will not transmit a subsequent DCI to the UE for a duration of time. The UE may be in continuous reception mode or connected discontinuous reception (C-DRX) mode. The UE may therefore determine to enter a sleep state or take other action. The bDCI may specify an explicit blanking duration, or an index indicating a blanking duration from a lookup table, and/or the blanking duration (and/or a blanking duration offset value) may be determined in advance, e.g., semi-statically. When the UE is in C-DRX mode, the UE may be configured such that either the sleep/wake period of the C-DRX mode or the blanking period of the bDCI may take precedence over the other.
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公开(公告)号:US11729628B2
公开(公告)日:2023-08-15
申请号:US17732279
申请日:2022-04-28
Applicant: Apple Inc.
Inventor: Fangli Xu , Dawei Zhang , Haijing Hu , Longda Xing , Murtaza A. Shikari , Sethuraman Gurumoorthy , Sree Ram Kodali , Srinivasan Nimmala , Srirang A. Lovlekar , Xu Ou , Yuqin Chen
Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for non-stand-alone unlicensed band cells that support single carrier capable UEs. A UE may camp on a licensed band cell of a RAN and transmit a request to connect. The UE may receive, from the licensed band cell, a connection setup message indicating a switch to an unlicensed band cell of the RAN and receive, from the unlicensed band cell, a reference signal. The UE may transmit to the unlicensed band cell and in response to confirming, based at least in part of the reference signal, radio quality and/or downlink timing of the unlicensed band cell, a connection complete/connection resume message.
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公开(公告)号:US20230254918A1
公开(公告)日:2023-08-10
申请号:US17593836
申请日:2020-10-22
Applicant: Apple Inc.
Inventor: Sethuraman Gurumoorthy , Fangli Xu , Adesh Kumar , Birgit Breining , Dawei Zhang , Haijing Hu , Longda Xing , Naveen Kumar R. Palle Venkata , Srirang A. Lovlekar , Yuqin Chen , Zhibin Wu
Abstract: A technique for determining that a wireless device supports using multiple subscriber identity module (SIM) cards to establish multiple connections to wireless networks, generating a multi-SIM capability message, and transmitting the multi-SIM capability message to a first wireless network. In another aspect, a technique for a wireless system to receive a multi-SIM capability message from a wireless device, determine a connection configuration of the wireless device based on the received multi-SIM capability message, and transmit an indication of the configured connection to the wireless device.
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公开(公告)号:US11723073B2
公开(公告)日:2023-08-08
申请号:US17040437
申请日:2019-09-29
Applicant: Apple Inc.
Inventor: Chunhai Yao , Clive E. Rodgers , Dawei Zhang , Fangli Xu , Haijing Hu , Haitong Sun , Wei Zeng , Yuqin Chen , Yushu Zhang , Zhibin Wu
IPC: H04W74/08 , H04W72/1268 , H04W74/00
CPC classification number: H04W74/0833 , H04W72/1268 , H04W74/006
Abstract: A wireless user equipment (UE) device may transmit a random access preamble to a base station, using a physical resource on an uplink signal. After failing to receive an initial transmission of a response message from the base station (BS), the UE device may monitor for one or more retransmissions of the response message. Each of the retransmission may include a corresponding transmission number. As an alternative, each of the retransmissions may be at least partially scrambled using a corresponding Radio Network Temporary Identifier (RNTI). As another alternative, a window for monitoring and RNTI calculation may be extended to include the one or more retransmissions. The successive retransmissions may include the same set of UE-specific payloads, or, a decreasing set of payloads over time as UE devices acknowledge successful receipt of their respective payloads.
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公开(公告)号:US20230239837A1
公开(公告)日:2023-07-27
申请号:US17593834
申请日:2020-10-15
Applicant: Apple Inc.
Inventor: Chunxuan Ye , Yushu Zhang , Dawei Zhang , Haijing Hu , Haitong Sun , Hong He , Huaning Niu , Jie Cui , Manasa Raghavan , Oghenekome Oteri , Sigen Ye , Wei Zeng , Weidong Yang , Yang Tang , Zhibin Wu
Abstract: Techniques for power savings by a wireless device. The technique including receiving, by a first wireless device, a set of sidelink resources for communicating directly with a second wireless device from a wireless node, determining, by the first wireless device, to transmit sidelink data to the second wireless device, receiving sidelink coordination information, the sidelink coordination information including discontinuous reception (DRX) configuration information of the second wireless device, transmitting a sidelink resources request to the wireless node, the sidelink resources request including assistance information based on the received sidelink coordination information, receiving a sidelink resources grant from the wireless node, and transmitting the sidelink data based on the sidelink resources grant.
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公开(公告)号:US20230239791A1
公开(公告)日:2023-07-27
申请号:US17593830
申请日:2020-10-14
Applicant: Apple Inc.
Inventor: Sethuraman Gurumoorthy , Fangli Xu , Adesh Kumar , Birgit Breining , Dawei Zhang , Haijing Hu , Longda Xing , Naveen Kumar R. Palle Venkata , Sarma V. Vangala , Sigen Ye , Srirang A. Lovlekar , Wei Zeng , Yuqin Chen , Zhibin Wu
IPC: H04W52/02
CPC classification number: H04W52/0229 , H04W52/0216 , H04W76/28
Abstract: A method for power saving, comprising: establishing a radio resource control (RRC) connection with a wireless device, transmitting, to the wireless device, configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time, transmitting an enhanced wake-up signal (EWUS) monitoring occasion for a DRX cycle, the EWUS monitoring occasion based on the offset time and the DRX on time period, determining that the wireless device can skip monitoring one or more future EWUS monitoring occasions, transmitting, during a first DRX cycle, a EWUS for the wireless device during the EWUS monitoring occasion associated with the first DRX cycle, the EWUS indicating that the wireless device can skip the one or more future EWUS monitoring occasions, and skipping transmitting the EWUS to the wireless device during the one or more future EWUS monitoring occasions.
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公开(公告)号:US20230232299A1
公开(公告)日:2023-07-20
申请号:US18184424
申请日:2023-03-15
Applicant: Apple Inc.
Inventor: Vijay Venkataraman , Srinivasan Nimmala , Longda Xing , Kavya B. Ravikumar , Krisztian Kiss , Yifan Zhu , Murtaza A. Shikari , Robert K. Kitchens , Haijing Hu , Robert Zaus
Abstract: Apparatuses, systems, and methods for performing efficient emergency services fallback. A cellular network element may provide emergency services fallback information to a wireless device during 3GPP 5GS cellular registration. The emergency services fallback information may include an indication of whether emergency services fallback via fallback to evolved packet core service is supported. The emergency services fallback information may also include an indication of whether emergency services fallback via fallback to circuit switched service is supported.
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公开(公告)号:US11700656B2
公开(公告)日:2023-07-11
申请号:US15734516
申请日:2019-11-04
Applicant: Apple Inc.
Inventor: Zhibin Wu , Clive E. Rodgers , Dawei Zhang , Fangli Xu , Haijing Hu , Hong He , Longda Xing , Murtaza A. Shikari , Sethuraman Gurumoorthy , Sree Ram Kodali , Srinivasan Nimmala , Srirang A. Lovlekar , Vijay Venkataraman , Yuqin Chen
Abstract: Peer devices may wirelessly communicate with each other over a bidirectional sidelink logical channel (LCH) through an established bidirectional sidelink radio bearer. An initiating device of the peer devices may dynamically select a logical channel ID for establishing a fully bidirectional or semi-bidirectional SLRB. At least two alternative sidelink radio resource control (PC5-RRC) procedures may ensure the SLRB parameters are configured correctly in the established logical channel. The procedures also allow the network to configure a limited SLRB which is used to couple the SLRB configuration in the direction in which limited traffic (e.g. feedback information such as robust header compression feedback and/or status reports) is transmitted.
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公开(公告)号:US11671823B2
公开(公告)日:2023-06-06
申请号:US17835705
申请日:2022-06-08
Applicant: Apple Inc.
Inventor: Yuchul Kim , Christian W. Mucke , Haijing Hu , Dawei Zhang , Matthias Sauer , Johnson O. Sebeni
Abstract: A wireless communication device (UE) may provide information pertaining to one or more operating capabilities of the UE to LTE and 5G-NR networks. The UE may transmit information to an LTE base station directly, and to a 5G-NR base station directly, or indirectly via the LTE base station. The information may include preferred values corresponding to any number of different operating parameters associated with wireless communications or wireless communication capabilities of the UE in both LTE and 5G-NR networks, to inform and/or request the LTE and 5G-NR networks to make provisions based on the transmitted information for the wireless communications of the UE on those networks. The UE may thereby provide assistance information to LTE and 5G-NR networks in a multi-radio-access-technology dual-connectivity setting to request the respective networks to adjust certain operating capabilities of the UE in order to alleviate one or more operating issues that may be affecting the UE.
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