-
公开(公告)号：US20230397024A1
公开(公告)日：2023-12-07
申请号：US17830156
申请日：2022-06-01
申请人： Apple Inc.
发明人： Vijendrakumar K. Ashiwal , Vijay Venkataraman , Tiberiu Muresan , Sharad Garg , Jia Tang , Pengkai Zhao , Zhu Ji , Vijay Gadde , Dikshit Garg , Tarakkumar G. Dhanani
摘要： A wireless device may comprise antennas and a processor configured to cause the wireless device to determine preferred antenna ports for at least one primary component carriers (PCCs) and at least one secondary component carriers (SCCs) based on performed downlink measurements of antenna ports. The wireless device may further determine support capabilities of the wireless device and perform computations using additional measurements of the antenna ports. Based on the computations, the wireless device may assign the preferred antenna ports to the PCCs and SCCs and perform uplink transmission using the assigned antenna ports.
-
公开(公告)号：US20200100195A1
公开(公告)日：2020-03-26
申请号：US16217364
申请日：2018-12-12
申请人： Apple Inc.
发明人： Dhruv Khati , Shiva Krishna Narra , Sanjeevi Balasubramanian , Anjaneyulu Maganti , Lydi Smaini , Tarik Tabet , Mohit Narang , Tiberiu Muresan
摘要： A power control method for device-to-device communication includes dynamically backing off transmit power value for synchronization signals and discovery messages when the distance between the two devices is less than a pre-determined threshold. The threshold distance may correspond to a distance where the receive power may exceed a pre-determined value. Embodiments may loop the transmit power of synchronization signals between a default transmit power value and backed-off values in consecutive slots of each frame.
-
公开(公告)号：US20200100177A1
公开(公告)日：2020-03-26
申请号：US16217357
申请日：2018-12-12
申请人： Apple Inc.
发明人： Sanjeevi Balasubramanian , Shiva Krishna Narra , Anjaneyulu Maganti , Tarik Tabet , Lydi Smaini , Dhruv Khati , Mohit Narang , Tiberiu Muresan
摘要： In a method of device-to-device communication, efficient power management is provided when a primary device has a low battery level. The primary device can send synchronization signals and discovery messages to secondary devices by looping through a sequence of transmit power values in a sequence of consecutive frames, where the sequence of transmitting values includes a default power value and a reduced power value.
-
公开(公告)号：US20200100082A1
公开(公告)日：2020-03-26
申请号：US16217361
申请日：2018-12-12
申请人： Apple Inc.
发明人： Sanjeevi Balasubramanian , Shiva Krishna Narra , Tarik Tabet , Dhruv Khati , Lydi Smaini , Anjaneyulu Maganti , Mohit Narang , Tiberiu Muresan
摘要： In a method of device-to-device communication, a user device initially sends an emergency message repeatedly at a first repeating frequency. When a specified number acknowledgement (ACK) messages are received, the user device sends the emergency message repeatedly at a reduced repeating frequency. The repeating frequency may be further reduced when more ACK messages are received.
-
公开(公告)号：US11044594B2
公开(公告)日：2021-06-22
申请号：US16217361
申请日：2018-12-12
申请人： Apple Inc.
发明人： Sanjeevi Balasubramanian , Shiva Krishna Narra , Tarik Tabet , Dhruv Khati , Lydi Smaini , Anjaneyulu Maganti , Mohit Narang , Tiberiu Muresan
摘要： In a method of device-to-device communication, a user device initially sends an emergency message repeatedly at a first repeating frequency. When a specified number acknowledgement (ACK) messages are received, the user device sends the emergency message repeatedly at a reduced repeating frequency. The repeating frequency may be further reduced when more ACK messages are received.
-
公开(公告)号：US20200091989A1
公开(公告)日：2020-03-19
申请号：US16136031
申请日：2018-09-19
申请人： Apple Inc.
发明人： Vijendrakumar K. Ashiwal , Dikshit Garg , Vijay Gadde , Sharad Garg , Jia Tang , Zhu Ji , Mohit Narang , Tiberiu Muresan
IPC分类号： H04B7/08 , H04B7/0404 , H04W36/00 , H04W36/30
摘要： The present disclosure relates to opportunistically selecting an antenna in an electronic device having multiple antennas. A baseband processor of the electronic device may connect to a first cellular tower providing cellular service at a first frequency using a first antenna of the electronic device. The baseband processor may then receive an indication of a handover event to a second cellular tower operating at a second frequency. The baseband processor may determine signal measurements of the second cellular tower for each antenna of the electronic device that is capable of operating at the second frequency. The baseband processor may execute a handover to the second cellular tower using the antenna associated with the best performing signal measurements. In this manner, an antenna may be opportunistically selected based on performance of the antenna, improving operation of the electronic device and quality of cellular service.
-
公开(公告)号：US10588086B1
公开(公告)日：2020-03-10
申请号：US16217357
申请日：2018-12-12
申请人： Apple Inc.
发明人： Sanjeevi Balasubramanian , Shiva Krishna Narra , Anjaneyulu Maganti , Tarik Tabet , Lydi Smaini , Dhruv Khati , Mohit Narang , Tiberiu Muresan
摘要： In a method of device-to-device communication, efficient power management is provided when a primary device has a low battery level. The primary device can send synchronization signals and discovery messages to secondary devices by looping through a sequence of transmit power values in a sequence of consecutive frames, where the sequence of transmitting values includes a default power value and a reduced power value.
-
公开(公告)号：US20200015169A1
公开(公告)日：2020-01-09
申请号：US16169013
申请日：2018-10-24
申请人： Apple Inc.
发明人： Anjaneyulu Maganti , Dhruv Khati , Lydi Smaini , Sanjeevi Balasubramanian , Shiva Krishna Narra , Tarik Tabet , Mohit Narang , Tiberiu Muresan
摘要： This disclosure relates to techniques and devices for implementing an emergency power save mode (EPSM) in a user equipment device (UE). A UE may enter the EPSM in response to user input. While operating in the EPSM, the UE may power down a display of the UE to preserve battery life and may broadcast an emergency beacon in response to user input to a hardware button of the UE, such as a volume button. The UE may supply sound or haptic feedback in response to broadcasting the emergency beacon.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.021 秒)
