Patents by Inventor Yuyu Yan

Yuyu Yan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240172295
    Abstract: Aspects are provided which allow a UE to apply CFO compensation to resolve mismatched RAPIDs caused by uplink Doppler shifts in HST deployments. The UE obtains one or more RARs each including a RAPID, where each of the RARs is responsive to a random access message including a preamble. The UE determines, in each of a threshold number of the one or more RARs, that the RAPID of a corresponding RAR is different than the preamble of a corresponding random access message. The UE then offsets a carrier frequency for each of one or more subsequent random access messages in response to the determination. As a result, mismatched RAPIDs due to uplink Doppler shifts may be avoided and RACH success rates may thereby be improved.
    Type: Application
    Filed: May 29, 2021
    Publication date: May 23, 2024
    Inventors: Yuyu YAN, Liang HONG, Jie MAO, Levent AYDIN, Erman KOKEN, yongle WU, Rebecca Wen-Ling YUAN, Ziad AHMAD, Brian Clarke BANISTER, Ashok MANTRAVADI, Nanrun WU, Xinyu WANG, Jie ZHU
  • Patent number: 9900888
    Abstract: The disclosure relates to subframe bundling in a system where subframe bundling is based on a set of bundling definitions. Control information is provided for at least one communication device configured to provide subframe bundling such that the control information is generated to be at least partially inconsistent with the set of bundling definitions. The control information is signaled to the at least one communication device to adjust the state of subframe bundling and/or size of subframe bundled transmission in accordance with a predefined rule by the at least one communication device. When the device receives the information, is determines that received control information is inconsistent with the set of bundling definitions. In response to the determination, the device can adjust the state of subframe bundling and/or size of subframe bundled transmission.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: February 20, 2018
    Inventors: Kari Juhani Hooli, Yuyu Yan, Timo Erkki Lunttila, Esa Tapani Tiirola, Pasi Eino Tapio Kinnunen
  • Publication number: 20150373704
    Abstract: The disclosure relates to subframe bundling in a system where subframe bundling is based on a set of bundling definitions. Control information is provided for at least one communication device configured to provide subframe bundling such that the control information is generated to be at least partially inconsistent with the set of bundling definitions. The control information is signaled to the at least one communication device to adjust the state of subframe bundling and/or size of subframe bundled transmission in accordance with a predefined rule by the at least one communication device. When the device receives the information, is determines that received control information is inconsistent with the set of bundling definitions. In response to the determination, the device can adjust the state of subframe bundling and/or size of subframe bundled transmission.
    Type: Application
    Filed: January 28, 2013
    Publication date: December 24, 2015
    Inventors: Kari Juhani HOOLI, Yuyu YAN, Timo Erkki LUNTTILA, Esa Tapani TIIROLA, Pasi Eino Tapio KINNUNEN
  • Publication number: 20150124727
    Abstract: Techniques are disclosed for ACK/NAK bit bundling in carrier aggregation scenarios. Such measures exemplarily comprise generating a set of acknowledgement bits confirming receipt of payload data of a radio frame in a carrier aggregation mode aggregating a primary and at least one secondary carrier, said radio frame being divided into a plurality of downlink subframes and uplink subframes, each of said downlink subframes comprising at least one codeword per carrier, each of said acknowledgement bits is allocated to one of said codewords of one of said downlink subframes, and applying spatial domain bundling and/or time domain bundling on said set of acknowledgement bits distinctive for each of said primary and said at least one secondary carrier, wherein said spatial domain bundling is an AND operation of all acknowledgement bits allocated to each codeword of one carrier of said primary and said at least one secondary carrier and one downlink subframe.
    Type: Application
    Filed: May 11, 2012
    Publication date: May 7, 2015
    Applicant: Nokia Solutions and Networks Oy
    Inventors: Yuyu Yan, Chunhai Yao, Peter Skov, Li Zhang
  • Publication number: 20140141830
    Abstract: As part of a communication technique involving a plurality of access nodes cooperatively detecting an uplink transmission from a communication device: detecting at said communication device access node-specific reference signals transmitted by respective ones of said plurality of access nodes; and calculating a pathloss value for at least one of said plurality of access nodes from a measurement of a power at which a respective one of said reference signals is detected at said communication device.
    Type: Application
    Filed: June 8, 2011
    Publication date: May 22, 2014
    Inventors: Peter Skov, Xiaoyi Wang, Yuyu Yan