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    Systems and methods providing improved success rate for RRC connection reestablishments
    3.
    发明授权
    Systems and methods providing improved success rate for RRC connection reestablishments 有权

    公开(公告)号：US09974113B2

    公开(公告)日：2018-05-15

    申请号：US15658530

    申请日：2017-07-25

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： Stephen Grant ,  Tarmo Kuningas

    IPC分类号： H04W4/00 ,  H04W76/02 ,  H04W36/00 ,  H04W88/08

    CPC分类号： H04W76/19 ,  H04W36/0033 ,  H04W36/0055 ,  H04W76/20 ,  H04W88/08

    摘要： Systems and methods that provide improved success rates for connection reestablishments in a cellular communications system are disclosed. Embodiments of a radio access node in a cellular communications system enabling connection reestablishment for a wireless device to a target cell controlled by the radio access node are disclosed. In some embodiments, the radio access node is operative to: (a) perform a wireless device context fetch for a context for the wireless device from two or more candidate source cells of the wireless device in response to a connection reestablishment request from the wireless device and (b) receive a wireless device context from at least one of the two or more candidate source cells of the wireless device in response to performing the wireless device context fetch. By performing multiple context fetches, the radio access node mitigates the problem of physical cell identifier ambiguity.

    Energy-Saving Mechanisms in a Heterogeneous Radio Communication Network
    4.
    发明申请
    Energy-Saving Mechanisms in a Heterogeneous Radio Communication Network 审中-公开
    异构无线电通信网络中的节能机制

    公开(公告)号：US20150078236A1

    公开(公告)日：2015-03-19

    申请号：US14548033

    申请日：2014-11-19

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： Elena Myhre ,  Tarmo Kuningas

    IPC分类号： H04W52/02 ,  H04W24/02

    CPC分类号： H04W52/0206 ,  H04B7/2606 ,  H04W16/26 ,  H04W16/32 ,  H04W24/02 ,  H04W92/20 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/449

    摘要： There is provided support mechanisms for at least one adding and removing a cell from operation in a heterogeneous radio network having a first type of basic cell for providing basic radio coverage and a second type of cell associated to a basic cell as a capacity enhancing cell. A capacity enhancing cell is selectively switched on and off. When the capacity enhancing cell is shut down the cell does not exist over the air while cell configuration information is kept. When the capacity enhancing cell is switched on the cell becomes available again over the air interface. An indication of shut-down and a wake-up call message for switch-on of the capacity enhancing cell are communicated between a base station serving the capacity enhancing cell and a base station serving the basic cell. In this way energy savings can be supported without disrupting service availability.

    摘要翻译： 提供了用于在具有用于提供基本无线电覆盖的第一类型的基本小区的异构无线电网络中的至少一个添加和移除小区的支持机制，以及与作为容量增强小区的基本小区相关联的第二类型的小区。 选择性地打开和关闭容量增强单元。 当容量增强小区关闭时，小区不存在，而小区配置信息被保留。 当容量增强小区被打开时，小区在空中接口上再次可用。 在服务于容量增强小区的基站和服务于基本小区的基站之间传送关闭和用于开启能力增强小区的唤醒呼叫消息的指示。 这样可以支持节能，而不会中断服务可用性。

    Energy-saving mechanisms in a heterogeneous radio communication network
    6.
    发明授权
    Energy-saving mechanisms in a heterogeneous radio communication network 有权

    公开(公告)号：US11218960B2

    公开(公告)日：2022-01-04

    申请号：US14547945

    申请日：2014-11-19

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： Elena Myhre ,  Tarmo Kuningas

    IPC分类号： H04W52/02 ,  H04W24/02 ,  H04W92/20 ,  H04W16/26 ,  H04B7/26 ,  H04W16/32

    摘要： There is provided support mechanisms for at least one adding and removing a cell from operation in a heterogeneous radio network having a first type of basic cell for providing basic radio coverage and a second type of cell associated to a basic cell as a capacity enhancing cell. A capacity enhancing cell is selectively switched on and off. When the capacity enhancing cell is shut down the cell does not exist over the air while cell configuration information is kept. When the capacity enhancing cell is switched on the cell becomes available again over the air interface. An indication of shut-down and a wake-up call message for switch-on of the capacity enhancing cell are communicated between a base station serving the capacity enhancing cell and a base station serving the basic cell. In this way energy savings can be supported without disrupting service availability.

    SYSTEMS AND METHODS PROVIDING IMPROVED SUCCESS RATE FOR RRC CONNECTION REESTABLISHMENTS
    10.
    发明申请
    SYSTEMS AND METHODS PROVIDING IMPROVED SUCCESS RATE FOR RRC CONNECTION REESTABLISHMENTS 有权

    公开(公告)号：US20170325279A1

    公开(公告)日：2017-11-09

    申请号：US15658530

    申请日：2017-07-25

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： Stephen Grant ,  Tarmo Kuningas

    IPC分类号： H04W76/02 ,  H04W36/00 ,  H04W88/08

    CPC分类号： H04W76/19 ,  H04W36/0033 ,  H04W36/0055 ,  H04W76/20 ,  H04W88/08

    摘要： Systems and methods that provide improved success rates for connection reestablishments in a cellular communications system are disclosed. Embodiments of a radio access node in a cellular communications system enabling connection reestablishment for a wireless device to a target cell controlled by the radio access node are disclosed. In some embodiments, the radio access node is operative to: (a) perform a wireless device context fetch for a context for the wireless device from two or more candidate source cells of the wireless device in response to a connection reestablishment request from the wireless device and (b) receive a wireless device context from at least one of the two or more candidate source cells of the wireless device in response to performing the wireless device context fetch. By performing multiple context fetches, the radio access node mitigates the problem of physical cell identifier ambiguity.