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    Method and system for improving circuit switched fall back (CSFB) performance
    1.
    发明授权
    Method and system for improving circuit switched fall back (CSFB) performance 有权

    公开(公告)号：US10070347B2

    公开(公告)日：2018-09-04

    申请号：US14770707

    申请日：2014-02-26

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Venkateswara Rao Manepalli ,  Subhasish Karmakar

    IPC: H04W36/00 ,  H04W76/27 ,  H04W72/04 ,  H04W76/04

    Abstract: A method and a system to improve circuit switched fall back (CSFB) performance specified in the 3rd generation partnership project (3GPP) standard are provided. The system includes a user equipment (UE) to collect a neighbor frequency list from the network along with the redirection frequency transmitted by the long term evolution (LTE) network in response to extended service request (ESR) initiated by the UE. The UE selects the best frequency on which the UE can camp for CS call by applying additional offset criteria over the existing S-criteria during selection of serving frequency that effectively increases CSFB call success rate. The method enables the UE to override timer T300 and parameter N300 in the radio resource control (RRC) connection establishment process during a CSFB call procedure and effectively utilize the ESR time to attempt maximum possible RRC connection requests.

    Method to select a candidate cell during cell selection
    2.
    发明授权
    Method to select a candidate cell during cell selection 有权

    公开(公告)号：US10075909B2

    公开(公告)日：2018-09-11

    申请号：US14976011

    申请日：2015-12-21

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Nitin Jain ,  Subhasish Karmakar

    IPC: H04W48/20

    CPC classification number: H04W48/20 ,  H04L43/16 ,  H04W72/0453

    Abstract: A user equipment (UE) and a method of cell selection by a UE are provided. The method includes maintaining a database for storing a multi-carrier availability status for a plurality of frequencies, wherein each frequency includes at least one of a multi-carrier configuration and a single-carrier configuration; determining whether a candidate cell corresponding to the multi-carrier configuration is available based on the multi-carrier availability status; and selecting the candidate cell corresponding to the multi-carrier configuration when a performance metric of the candidate cell is greater than a pre-defined threshold.

    METHOD TO SELECT A CANDIDATE CELL DURING CELL SELECTION
    3.
    发明申请
    METHOD TO SELECT A CANDIDATE CELL DURING CELL SELECTION 审中-公开
    在细胞选择期间选择候选细胞的方法

    公开(公告)号：US20160183182A1

    公开(公告)日：2016-06-23

    申请号：US14976011

    申请日：2015-12-21

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Nitin Jain ,  Subhasish Karmakar

    IPC: H04W48/20 ,  H04W72/04 ,  H04L12/26

    CPC classification number: H04W48/20

    Abstract: A user equipment (UE) and a method of cell selection by a UE are provided. The method includes maintaining a database for storing a multi-carrier availability status for a plurality of frequencies, wherein each frequency includes at least one of a multi-carrier configuration and a single-carrier configuration; determining whether a candidate cell corresponding to the multi-carrier configuration is available based on the multi-carrier availability status; and selecting the candidate cell corresponding to the multi-carrier configuration when a performance metric of the candidate cell is greater than a pre-defined threshold.

    Abstract translation: 提供了一种用户设备（UE）和UE的小区选择方法。 该方法包括维护数据库以存储多个频率的多载波可用性状态，其中每个频率包括多载波配置和单载波配置中的至少一个; 基于所述多载波可用性状态来确定对应于所述多载波配置的候选小区是否可用; 以及当候选小区的性能度量大于预定阈值时，选择与多载波配置相对应的候选小区。

    METHOD TO SELECT A CANDIDATE CELL DURING CELL SELECTION
    4.
    发明申请
    METHOD TO SELECT A CANDIDATE CELL DURING CELL SELECTION 审中-公开

    公开(公告)号：US20180262981A9

    公开(公告)日：2018-09-13

    申请号：US14976011

    申请日：2015-12-21

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Nitin Jain ,  Subhasish Karmakar

    IPC: H04W48/20 ,  H04L12/26 ,  H04W72/04

    Abstract: A user equipment (UE) and a method of cell selection by a UE are provided. The method includes maintaining a database for storing a multi-carrier availability status for a plurality of frequencies, wherein each frequency includes at least one of a multi-carrier configuration and a single-carrier configuration; determining whether a candidate cell corresponding to the multi-carrier configuration is available based on the multi-carrier availability status; and selecting the candidate cell corresponding to the multi-carrier configuration when a performance metric of the candidate cell is greater than a pre-defined threshold.

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