Patents by Inventor I-Kang Fu

I-Kang Fu 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).

  • Patent number: 10362521
    Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 23, 2019
    Assignee: MEDIATEK INC.
    Inventors: I-Kang Fu, Chao-Chin Chou
  • Patent number: 10264449
    Abstract: 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: Grant
    Filed: October 18, 2016
    Date of Patent: April 16, 2019
    Assignee: HFI Innovation INC.
    Inventors: Chien-Chun Huang-Fu, I-Kang Fu
  • Publication number: 20190098570
    Abstract: Methods and apparatus are provided for UE-centric measurement and connectivity control in macro-assisted heterogeneous network. In one novel aspect, the UE establishes a connection with a macro base station in a heterogeneous wireless network. The UE collects and analyzes UE status information locally. Subsequently, the UE autonomously initiates access to a small cell base station if access criteria are met based on the locally collected UE status information. In one embodiment, the UE informs the macro base station and the one or more small-cell base stations of the small-cell base station. In another embodiment, the UE starts a supervise timer before initiating access the one or more small-cell base stations and autonomously initiates a subsequent accessing procedure to another small cell base station upon detecting an access failure until the supervising timer expires. The UE stops the access procedure upon the supervise timer expires.
    Type: Application
    Filed: October 22, 2018
    Publication date: March 28, 2019
    Inventors: Yuanyuan Zhang, I-Kang Fu, Aimin Justin Sang
  • Publication number: 20190090289
    Abstract: Various examples and schemes pertaining to enhanced cell selection mechanisms in mobile communications are described. A user equipment (UE) performs a cell selection or reselection procedure to select a cell of a wireless network and establishes a wireless connection with the selected cell. In performing the cell selection or reselection procedure, the UE determines a frequency band and a subcarrier spacing (SCS) configuration by checking a profile, and the UE performs the cell selection or reselection procedure in the frequency band based on the SCS configuration.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 21, 2019
    Inventors: Chien-Chun Huang-Fu, Tsang-Wei Yu, Tao Chen, I-Kang Fu
  • Patent number: 10212691
    Abstract: 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: Grant
    Filed: November 28, 2017
    Date of Patent: February 19, 2019
    Assignee: HFI Innovation INC.
    Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu
  • Patent number: 10159092
    Abstract: Methods and apparatus are provided contention based uplink data transmission. In one novel aspect, the contention-based uplink data channel is used to transmit the data directly to the network. In one embodiment, the UE selects an UL data channel from a set of preconfigured uplink contention based data channels and sends the UL data transmission on the selected UL data channel. In one embodiment, the contention based UL data has a narrow bandwidth with a long CP such that the TA is not needed from the base station. In another embodiment, a small signaling payload is included in the CB UL data transmission if the size of the data contents cannot be fit in the UL data channel. In one embodiment, the signaling payload is the BSR. The UE, subsequently, receives an UL grant and sends the remaining data contents using the allocated data channel in the UL grant.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: December 18, 2018
    Assignee: HFI Innovation INC.
    Inventors: Shiang-Jiun Lin, Gilles Charbit, I-Kang Fu
  • Patent number: 10149326
    Abstract: This invention proposes efficient data transmission methods in the mobile cellular network. A specific resource pool is divided into several resource groups to indicate the size level of the data available for transmission. The base station allocates a proper UL grant to the terminal. Based on the allocated UL grant, the terminal compares the granted Transport Block (TB) size with the size of data available for transmission. If the UL grant is large enough, the terminal transmits the data available for transmission in the allocated UL resource, otherwise, re-attempts the random access procedure. In another example, the terminal transmits a BSR message and as much of the data as is available for transmission. The base station may grant additional UL resources if there is remaining data to be transmitted. A timer is used for the terminal to decide whether waiting for the additional UL grant from the base station.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: December 4, 2018
    Assignee: HFI INNOVATION INC.
    Inventors: Feifei Sun, Yuanyuan Zhang, Chia-Chun Hsu, I-Kang Fu
  • Publication number: 20180343697
    Abstract: A method of UE category and capability indication for co-existed 4G LTE and 5G New Ratio (NR) devices is proposed. UE indicates UE category and associated capability for standalone NR, which includes band combination for NR and a list of capability combinations of baseband feature sets. UE also indicates separate UE category and associated capability for 5G NR EN-DC (EUTRA-NR Dual Connectivity), which includes band combination for NR+LTE, and a list of capability combinations of baseband feature sets. Based on such indication, the network can enable the UE to operate over multiple connections via multiple radio access technology (RATs) concurrently. In one novel aspect, the baseband feature set combination is band combination agnostic.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 29, 2018
    Inventors: Chia-Chun Hsu, I-Kang Fu, Hsin-Ying Lee
  • Publication number: 20180310216
    Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.
    Type: Application
    Filed: June 27, 2018
    Publication date: October 25, 2018
    Inventors: I-Kang Fu, Chao-Chin Chou
  • Patent number: 10039042
    Abstract: A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: July 31, 2018
    Assignee: MEDIATEK INC.
    Inventors: I-Kang Fu, Chao-Chin Chou
  • Patent number: 9967880
    Abstract: A method of data transmission over guard sub-carriers is provided in a multi-carrier OFDM system. Adjacent radio frequency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequency channels are aligned and identified for data transmission in a pre-defined physical resource unit. The identified guard sub-carriers do not overlap with normal data sub-carriers of the radio signals transmitted through the adjacent frequency channels. At least one of the identified guard sub-carriers is reserved as NULL sub-carrier. A flexible multi-carrier transceiver architecture is also provided in a multi-carrier OFDM system. Different multi-carrier and/or MIMO/SISO data transmission schemes are implemented by adaptively reconfigure same hardware modules including common MAC layer module, physical layer entities, and RF entities.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 8, 2018
    Assignee: MEDIATEK INC.
    Inventors: I-Kang Fu, Po-Yuen Cheng, Pei-Kai Liao
  • Patent number: 9967897
    Abstract: The invention provides a mobile communication device having a first wireless communication module with a strong driving circuit, and a second wireless communication module with a weak driving circuit. The first wireless communication module is coupled to the second wireless communication module via only one wire. The first wireless communication module sends a first traffic pattern of a first wireless transceiving to the second wireless communication module via the wire, and receives a second traffic of a second wireless transceiving from the second wireless communication module via the wire. The second traffic pattern indicates whether the second wireless communication module decides to use a remaining period of time, in which the first wireless communication module is not required to perform wireless transceiving, for the second wireless transceiving.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 8, 2018
    Assignee: MEDIATEK INC.
    Inventors: Li-Chun Ko, Hong-Kai Hsu, I-Lin Hsieh, Jwo-An Lin, I-Kang Fu, Huanchun Ye
  • Publication number: 20180084526
    Abstract: 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: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu
  • Patent number: 9872274
    Abstract: 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: Grant
    Filed: March 7, 2017
    Date of Patent: January 16, 2018
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu
  • Publication number: 20180007717
    Abstract: This invention proposes efficient data transmission methods in the mobile cellular network. A specific resource pool is divided into several resource groups to indicate the size level of the data available for transmission. The base station allocates a proper UL grant to the terminal. Based on the allocated UL grant, the terminal compares the granted Transport Block (TB) size with the size of data available for transmission. If the UL grant is large enough, the terminal transmits the data available for transmission in the allocated UL resource, otherwise, re-attempts the random access procedure. In another example, the terminal transmits a BSR message and as much of the data as is available for transmission. The base station may grant additional UL resources if there is remaining data to be transmitted. A timer is used for the terminal to decide whether waiting for the additional UL grant from the base station.
    Type: Application
    Filed: August 25, 2017
    Publication date: January 4, 2018
    Inventors: Feifei SUN, Yuanyuan ZHANG, Chia-Chun HSU, I-Kang FU
  • Patent number: 9854560
    Abstract: Methods and apparatus are provided for paging transmission and reception for UEs requiring repeatedly paging. In one novel aspect, the UE reports the status to the MME. UE status 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 UEs requiring repeatedly paging. 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 status upon detecting status changes. The eNB stores UE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its UE list with repetition while paging other UEs normally.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 26, 2017
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu
  • Patent number: 9853847
    Abstract: In a wireless OFDM multi-carrier communication system, a mobile station obtains measurement result of a first received signal strength indication (RSSI) of a first preamble signal transmitted from a base station over a first radio frequency (RF) carrier. The mobile station also obtains signal offset information between the first RF carrier and a second RF carrier of the base station. In response to the measurement result and the signal offset information, the mobile station estimates a second RSSI of a second preamble signal transmitted by the base station over the second RF carrier without performing scanning over the second RF carrier. In one novel aspect, the mobile station identifies a carrier group containing multiple carriers that belong to the same base station. Measurement optimization, initial cell selection and cell reselection optimization, report reduction, and other carrier group based optimization can be achieved in the multi-carrier system based on identified carrier group.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: December 26, 2017
    Assignee: MediaTek Inc.
    Inventors: Chao-Chin Chou, I-Kang Fu
  • Patent number: 9807659
    Abstract: A method of implicit signaling to support In-Device coexistence interference avoidance is provided. A UE sends an IDC interference indication to an eNB. The indication indicates that a serving frequency becomes unusable due to a coexistence interference problem. The indication does not explicitly indicate a frequency index or a frequency location of the unusable serving frequency. The eNB determines the serving frequency as unusable in an implicit manner. The eNB also determines an implied unusable frequency region based on the received IDC indication. The implied unusable frequency region is between the serving frequency and the ISM band. In one advantageous aspect, the eNB configures a condition for the UE, such that the UE is refrained from sending IDC interference indications unless the condition is satisfied.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 31, 2017
    Assignee: MEDIATEK INC.
    Inventors: I-Kang Fu, Yih-Shen Chen, William Plumb, Per Johan Mikael Johansson
  • Patent number: 9807800
    Abstract: This invention proposes efficient data transmission methods in the mobile cellular network. A specific resource pool is divided into several resource groups to indicate the size level of the data available for transmission. The base station allocates a proper UL grant to the terminal. Based on the allocated UL grant, the terminal compares the granted Transport Block (TB) size with the size of data available for transmission. If the UL grant is large enough, the terminal transmits the data available for transmission in the allocated UL resource, otherwise, re-attempts the random access procedure. In another example, the terminal transmits a BSR message and as much of the data as is available for transmission. The base station may grant additional UL resources if there is remaining data to be transmitted. A timer is used for the terminal to decide whether waiting for the additional UL grant from the base station.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: October 31, 2017
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Feifei Sun, Yuanyuan Zhang, Chia-Chun Hsu, I-Kang Fu
  • Publication number: 20170195989
    Abstract: 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: Application
    Filed: March 7, 2017
    Publication date: July 6, 2017
    Inventors: Yuanyuan Zhang, Yu-Syuan Jheng, Feifei Sun, Li Chen, I-Kang Fu