Patents Assigned to HFI Innovation
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Patent number: 10348431Abstract: A method of small cell discovery and RSRP/RSRQ measurements in OFDM/OFDMA systems is proposed. A discovery reference signal (DRS) with low transmission frequency is introduced to support small cell detection within a short time, multiple small cell discovery, and accurate measurement of multiple small cells. The DRS consists of one or multiple reference signal types with the functionalities including timing and frequency synchronization, cell detection, RSRP/RSSI/RSRQ measurements, and interference mitigation. RE muting is configured for the DRS to reduce interference level from data to DRS for discovery and RSRP/RSRQ measurements for small cells.Type: GrantFiled: July 24, 2017Date of Patent: July 9, 2019Assignee: HFI Innovation INC.Inventors: Pei-Kai Liao, Hsiao-Lan Chiang, Chien-Chang Li, Xiangyang Zhuang
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Patent number: 10327010Abstract: An encoder for receiving a video frame and performing encoding processes to generate an encoded bitstream includes: a fidelity enhancement block, for performing a fidelity enhancement technique on processed data utilizing a partition method, and generating fidelity enhancement information comprising at least one parameter associated with a partition structure, wherein the fidelity enhancement technique comprises applying discrepancy modeling based on DC offset; and an entropy coding block, coupled to the fidelity enhancement block, for encoding the fidelity enhancement information, and embedding the encoded fidelity enhancement information into the encoded bitstream.Type: GrantFiled: February 5, 2015Date of Patent: June 18, 2019Assignee: HFI Innovation Inc.Inventors: Shaw-Min Lei, Yu-Wen Huang, Xun Guo
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Patent number: 10299093Abstract: Methods and apparatus for obtaining a response message for CB access uplink transmission are disclosed. In one novel aspect, UE performs a CB access uplink transmission, selects a first group of radio resources for one or more candidate control-less response message blocks with corresponding transmission repetition number, retrieves and decodes one candidate response message block corresponds to one sub-group of resources in the first group of radio resources and determines if the candidate response message is intended for the UE. In one embodiment, the UE obtains the candidate response message by determining one or more repetition number and obtaining corresponding sub-group of resources from the starting point(s). In another embodiment, the UE determines one or more frequency locations to obtain the candidate response message. In yet another embodiment, the UE selects a second group of radio resources if no response message is detected within the first group of radio resources.Type: GrantFiled: November 21, 2016Date of Patent: May 21, 2019Assignee: HFI Innovation INC.Inventors: Hua-Min Chen, Feifei Sun
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Patent number: 10298956Abstract: A method and apparatus for significance map context selection are disclosed. According to the present invention, the TUs are divided into sub-blocks and at least two context sets are used. Non-DC transform coefficients in each sub-block are coded based on the same context, context set, or context formation. The context, context set, or context formation for each sub- block can be determined based on sub-block index in scan order, horizontal sub-block index, vertical sub-block index, video component type, TU width, TU height, or any combination of the above. In one embodiment, the sum of the horizontal and the vertical sub-block indexes is used to classify each sub-block into a class and the context, context set, or context formation is then determined according to the class.Type: GrantFiled: November 22, 2012Date of Patent: May 21, 2019Assignee: HFI Innovation Inc.Inventors: Chih-Wei Hsu, Tzu-Der Chuang, Ching-Yeh Chen, Yu-Wen Huang
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Publication number: 20190149842Abstract: According to at least one aspect, a method for predictive Intra coding is provided. The method comprises: determining a set of Intra prediction modes used for prediction unit (PU) blocks with a plurality of different block sizes comprising a 4×4 block size and at least two other block sizes; applying predictive Intra coding to a first PU block having a first block size that matches a block size in the plurality of different block sizes based on one or more neighboring PU blocks according to a first Intra prediction mode selected from the set of Intra prediction modes; and applying predictive Intra coding to a second PU block having a second block size that is different from the first block size and matches a block size in the plurality of different block sizes according to a second Intra prediction mode selected from the set of Intra prediction modes.Type: ApplicationFiled: January 9, 2019Publication date: May 16, 2019Applicant: HFI Innovation Inc.Inventors: Mei Guo, Shan Liu, Shaw-Min Lei
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Patent number: 10292132Abstract: Methods and apparatus are provided for paging enhancement for the UE in the LC-MTC mode. In one novel aspect, the UE determines if the UE is in CE mode, obtains a set of narrow-band resource blocks reserved for LC-MTC paging messages and decodes a paging message based on the obtained narrow-band resource blocks. In one embodiment, the paging message occupies a predefined narrow band resource blocks without control information. In another embodiment, MPDCCH is used as control message to schedule narrow-band paging messages. In one embodiment, the MPDCCH searching space comprises a paging narrow-band selected from the set of narrow bands based on a UE ID. In another novel aspect, methods for PO detection are provided. The UE obtains a set of common paging narrow-bands from a higher layer configuration, determines a paging occasion to monitor paging message, decodes paging messages within the obtained common paging narrow-band, and performs combination.Type: GrantFiled: November 8, 2017Date of Patent: May 14, 2019Assignee: HFI Innovation INC.Inventors: Hua-Min Chen, Min Wu, Feifei Sun, Tao Chen
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Patent number: 10292182Abstract: A method of dynamic spectrum sharing mechanism called listen-before-talk (LBT) is proposed for uplink transmission in Licensed Assisted Access (LAA). A maximum channel occupancy time (MCOT) including downlink (DL) transmission from one eNB and uplink (UL) transmission to the same eNB is introduced. A transmission sequence is defined as a number of subframes including possible partial subframes for DL and/or UL within a MCOT. The transmission in the first subframe among the transmission sequence is conducted after a Category 4 LBT. The transmission sequence within the MCOT can be initiated by either a DL transmission or an UL transmission. After the first subframe in a transmission sequence, LBT for another transmission is a fast DL LBT and/or fast UL LBT. Further, a Category 4 LBT can be converted to a short LBT (e.g., one shot CCA) for more efficient channel access.Type: GrantFiled: February 14, 2017Date of Patent: May 14, 2019Assignee: HFI Innovation INC.Inventors: Weidong Yang, Bo-Si Chen, Chien-Chang Li, Yih-Shen Chen, Pavan Santhana Krishna Nuggehalli
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Patent number: 10264281Abstract: A method and apparatus for three-dimensional video coding are disclosed. Embodiments according to the present invention apply the pruning process to one or more spatial candidates and at least one of the inter-view candidate and the temporal candidate to generate a retained candidate set. The pruning process removes any redundant candidate among one or more spatial candidates and at least one of the inter-view candidate and the temporal candidate. A Merge/Skip candidate list is then generated, which includes the retained candidate set. In one embodiment, the temporal candidate is exempted from the pruning process. In another embodiment, the inter-view candidate is exempted from the pruning process. In other embodiments of the present invention, the pruning process is applied to the inter-view candidate and two or more spatial candidates. The pruning process compares the spatial candidates with the inter-view candidate.Type: GrantFiled: July 2, 2013Date of Patent: April 16, 2019Assignee: HFI Innovation Inc.Inventors: Jian-Liang Lin, Yi-Wen Chen
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Patent number: 10264449Abstract: Apparatus and methods are provided for sim-less subscription mechanism for mobile cellular networks. In novel aspect, the mobile device supporting the e-SIM is provisioned with the assistance the UE by obtaining subscription information from the UE. In one embodiment, UE retrieves an ID from the mobile device. The UE sends a subscription request to the e-SIM platform, wherein the subscription request includes information of the retrieved ID of the mobile device and the subscription information of the UE. In another embodiment, the mobile device retrieves subscription information from the UE. The mobile device sends a subscription request to the e-SIM platform, wherein the subscription request includes information of the subscription information retrieved from the UE and the ID of the mobile device. The mobile device receives a subscription response from the e-SIM platform and enables the mobile device through mobile device's e-SIM based on the subscription response.Type: GrantFiled: October 18, 2016Date of Patent: April 16, 2019Assignee: HFI Innovation INC.Inventors: Chien-Chun Huang-Fu, I-Kang Fu
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Patent number: 10257723Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.Type: GrantFiled: June 30, 2017Date of Patent: April 9, 2019Assignee: HFI Innovation INC.Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb
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Patent number: 10251067Abstract: Periodic Radio Resource Management (RRM) reporting from user equipments (UEs) is beneficial for a network to efficiently select a carrier with a cleaner channel to serve the UEs. To enable periodic RRM reporting from UEs, periodic beacon signal transmission for UE measurements is necessary. However, in a shared spectrum, precise periodic transmission cannot be guaranteed due to channel contention. A method of transmission with periodic time windows for beacon signal transmission is proposed to resolve potential issues. Under the proposed solution, beacon signal can be transmitted in a certain periodic fashion without frequent physical layer signaling. Furthermore, periodic beacon signal transmission for measurements can be kept with low transmission failure rate due to channel contention.Type: GrantFiled: March 15, 2016Date of Patent: April 2, 2019Assignee: HFI Innovation INC.Inventors: Pei-Kai Liao, Weidong Yang, Chien-Chang Li, Bo-Si Chen
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Patent number: 10230937Abstract: A method and apparatus for a three-dimensional or multi-view video encoding or decoding system utilizing unified disparity vector derivation is disclosed. When a three-dimensional coding tool using a derived disparity vector (DV) is selected, embodiments according to the present invention will first obtain the derived DV from one or more neighboring blocks. If the derived DV is available, the selected three-dimensional coding tool is applied to the current block using the derived DV. If the derived DV is not available, the selected three-dimensional coding tool is applied to the current block using a default DV, where the default DV is set to point to an inter-view reference picture in a reference picture list of the current block.Type: GrantFiled: August 13, 2014Date of Patent: March 12, 2019Assignee: HFI Innovation Inc.Inventors: Jian-Liang Lin, Na Zhang, Yi-Wen Chen, Jicheng An, Yu-Lin Chang
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Publication number: 20190068948Abstract: A method for a three-dimensional encoding or decoding system incorporating sub-block based inter-view motion prediction is disclosed. The system utilizes motion or disparity parameters associated with reference sub-blocks in a reference picture of a reference view corresponding to the texture sub-PCU split from a current texture PU (prediction unit) to predict the motion or disparity parameters of the current texture PU. Candidate motion or disparity parameters for the current texture PU may comprise candidate motion or disparity parameters derived for all texture sub-PUs from splitting the current texture PU. The candidate motion or disparity parameters for the current texture PU can be used as a sub-block-based inter-view Merge candidate for the current texture PU in Merge mode. The sub-block-based inter-view Merge candidate can be inserted into a first position of a candidate list.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Applicant: HFI Innovation Inc.Inventors: Jicheng AN, Kai ZHANG, Jian-Liang LIN
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Patent number: 10219255Abstract: Apparatus and methods are provided for TDM uplink transmission on multiple serving cells with single transmitter. In one novel aspect, the UE selects a serving cell for an UL transmission subframe based on a TDM selection rule. In one embodiment, the switching rule involves identifying one or more serving cells with a highest UL transmission priority and a serving-cell priority rule. In another novel aspect, the UE drops a selected part of the UL transmission within the overlap region based on one or more switching rules, which include dropping a last OFDM symbol, dropping a portion of a last OFDM symbol of the SRS with combing structure, dropping a partial CP of a first OFDM symbol of the second serving cell, and dropping a partial tail of a last OFDM symbol of the first serving cell and partial CP of a first OFDM symbol of the second serving cell.Type: GrantFiled: January 21, 2018Date of Patent: February 26, 2019Assignee: HFI Innovation Inc.Inventors: Min Wu, Xiangyang Zhuang, Chien-Hwa Hwang, Shiang-Jiun Lin
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Patent number: 10212454Abstract: According to at least one aspect, a method for predictive Intra coding is provided. The method comprises: determining a set of Intra prediction modes used for prediction unit (PU) blocks with a plurality of different block sizes comprising a 4×4 block size and at least two other block sizes; applying predictive Intra coding to a first PU block having a first block size that matches a block size in the plurality of different block sizes based on one or more neighboring PU blocks according to a first Intra prediction mode selected from the set of Intra prediction modes; and applying predictive Intra coding to a second PU block having a second block size that is different from the first block size and matches a block size in the plurality of different block sizes according to a second Intra prediction mode selected from the set of Intra prediction modes.Type: GrantFiled: February 20, 2018Date of Patent: February 19, 2019Assignee: HFI Innovation Inc.Inventors: Mei Guo, Shan Liu, Shaw-Min Lei
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Patent number: 10212617Abstract: A method of throughput and data volume measurement for minimization of drive test (MDT) is proposed. A base station establishes a radio resource control (RRC) connection with a user equipment (UE) in a mobile communication network. The base station or UE measures transmitted or received data volume during a transmission time of a data burst between the base station and the UE. When the data burst spans multiple measurement periods and the data burst is split at each measurement period boundary. For each measurement period, data volume during the measurement period is measured to generate a measurement result. When throughput measurement is performed by the network, the base station receives location information that is available during the transmission time of the data burst. The data volume measurement is logged with time stamp such that each measurement result can correlated with the location information.Type: GrantFiled: September 21, 2015Date of Patent: February 19, 2019Assignee: HFI Innovation INC.Inventors: Per Johan Mikael Johansson, Yih-Shen Chen
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Patent number: 10212691Abstract: Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.Type: GrantFiled: November 28, 2017Date of Patent: February 19, 2019Assignee: HFI Innovation INC.Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu
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Patent number: 10182379Abstract: Methods for LTE-WLAN interworking control and management are proposed. In one novel aspect, a terminal equipment (TE) can use an AT command to query the WLAN offloadability of a packet data network (PDN) connection. A mobile termination (MT) can store the WLAN offloadability indication in its memory and return the value to TE upon receiving the AT command. In one example, a new field <WLAN_Offload> can be added to an existing AT command.Type: GrantFiled: January 27, 2016Date of Patent: January 15, 2019Assignee: HFI Innovation INC.Inventors: Yu-Syuan Jheng, Pavan Santhana Krishna Nuggehalli, Chien-Chun Huang-Fu
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Patent number: 10178409Abstract: A method and apparatus of predictive Intra coding of a block are disclosed. In one embodiment according to the present invention, a set of Intra prediction modes is determined, and predictive Intra coding is applied to a prediction unit (PU) of an image based on one or more neighboring PUs according to a current Intra prediction mode. The current Intra prediction mode is selected from the set of Intra prediction modes and the current Intra prediction mode is predicted using most probable modes (MPMs) and remaining modes. A number of the remaining modes is kept as a power of 2. For example, the 32 remaining modes can be represented using 5-bit fixed length codes.Type: GrantFiled: February 27, 2018Date of Patent: January 8, 2019Assignee: HFI Innovation Inc.Inventors: Mei Guo, Shan Liu, Shaw-Min Lei
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Patent number: 10165252Abstract: A method for a three-dimensional encoding or decoding system incorporating sub-block based inter-view motion prediction is disclosed. The system utilizes motion or disparity parameters associated with reference sub-blocks in a reference picture of a reference view corresponding to the texture sub-PUs split from a current texture PU (prediction unit) to predict the motion or disparity parameters of the current texture PU. Candidate motion or disparity parameters for the current texture PU may comprise candidate motion or disparity parameters derived for all texture sub-PUs from splitting the current texture PU. The candidate motion or disparity parameters for the current texture PU can be used as a sub-block-based inter-view Merge candidate for the current texture PU in Merge mode. The sub-block-based inter-view Merge candidate can be inserted into a first position of a candidate list.Type: GrantFiled: July 10, 2014Date of Patent: December 25, 2018Assignee: HFI Innovation Inc.Inventors: Jicheng An, Kai Zhang, Jian-Liang Lin