Performing a combination of handover techniques

    公开(公告)号:US11438812B2

    公开(公告)日:2022-09-06

    申请号:US16450771

    申请日:2019-06-24

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a source base station (BS), an indication that the UE is to perform a conditional handover from the source BS to a target BS and is to perform at least one of: a two protocol stack handover from the source BS to the target BS or a dual connectivity handover from the source BS to the target BS. The UE may perform the conditional handover and at least one of the two protocol stack handover or the dual connectivity handover based at least in part on the indication. Numerous other aspects are provided.

    Idle cell reselection and user equipment capability signaling

    公开(公告)号:US11330478B2

    公开(公告)日:2022-05-10

    申请号:US16532195

    申请日:2019-08-05

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a UE capability for available radio access technologies. The UE may determine which of the available radio access technologies are suitable for idle cell reselection (e.g., inter-radio access technology idle cell reselection, intra-radio access technology idle cell reselection) according to the UE capabilities, which may be related to a UE category or UE usage mode (e.g., voice centric mode, data centric mode) of the UE, etc. The UE may transmit a signal indicating the UE capabilities to a network entity (e.g., a serving cell). The network entity may receive the signaling and determine suitable radio access technologies for the idle cell reselection, and transmit a set of parameters in a message for the UE to use as part of the idle cell reselection.

    Transfer of security protected configuration data from HPLMN

    公开(公告)号:US11172360B2

    公开(公告)日:2021-11-09

    申请号:US15892067

    申请日:2018-02-08

    Abstract: Protected configuration data may be sent to user equipment subscribed to a first wireless communication network by a second wireless communication network with which the user equipment is registered. The first wireless communication network may protect the configuration data based on at least one first key when sending the data to the second wireless communication network. The second wireless communication network may send the configuration data to user equipment in messages protected by at least one second key. User equipment receives the message from the second wireless communication network, extracts the configuration data using the at least one second key, determines whether the configuration data has been altered at least in part based on the at least one first key, and applies the configuration data if the configuration data has not been altered. The protected configuration data may be sent in an information element of a control plane message.

    APPARATUS AND METHOD OF WIRELESS COMMUNICATION BASED ON A BACK-OFF TIMER

    公开(公告)号:US20210274570A1

    公开(公告)日:2021-09-02

    申请号:US17185309

    申请日:2021-02-25

    Abstract: An apparatus for wireless communication includes a memory and a processor coupled to the memory. The processor is configured to send a data session establishment request to establish a data session with a network device using a wireless communication network. The data session establishment request has a first field to indicate a requested network slice for the data session. The processor is further to receive an indication of a granted network slice for the data session and to receive an indication of a back-off timer value from the network device. The processor is further configured, after expiration of a back-off timer based on the back-off timer value, to send a first message associated with the granted network slice and to send a second message having a second field corresponding to the first field of the data session establishment request.

    Dynamic evolved packet data gateway selection

    公开(公告)号:US10158601B2

    公开(公告)日:2018-12-18

    申请号:US15887682

    申请日:2018-02-02

    Abstract: In aspects of the disclosure, a method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, the apparatus determines if a connection to a PLMN has been established. In another aspect, the apparatus builds a FQDN based on the determination by attempting to build the FQDN using each of the prioritized FQDNs in order of priority until the FQDN is built, building the FQDN using a PLMN ID of the PLMN if it is determined that the PLMN is found in the list, or building the FQDN based on the wildcard PLMN if it is determined that the list comprises the wildcard PLMN. Further still, the apparatus selects an ePDG based on the FQDN.

    ADAPTATION OF HANDOVER PARAMETERS
    60.
    发明申请
    ADAPTATION OF HANDOVER PARAMETERS 有权
    适应切换参数

    公开(公告)号:US20150282037A1

    公开(公告)日:2015-10-01

    申请号:US14738604

    申请日:2015-06-12

    CPC classification number: H04W36/30 H04W24/02 H04W36/0094 H04W76/18

    Abstract: Handover parameter settings are automatically adapted in access points in a system to improve handover performance. Reactive detection techniques are employed for identifying different types of handover-related failures and adapting handover parameters based on this detection. Messaging schemes are also employed for providing handover-related information to access points. Proactive detection techniques also may be used for identifying conditions that may lead to handover-related failures and then adapting handover parameters in an attempt to prevent such handover-related failures. Ping-ponging may be mitigated by adapting handover parameters based on analysis of access terminal visited cell history acquired by access points in the system. In addition, configurable parameters (e.g., timer values) may be used to detect handover-related failures.

    Abstract translation: 切换参数设置在系统的接入点自动调整,以提高切换性能。 采用无功检测技术来识别不同类型的切换相关故障,并根据该检测来适应切换参数。 消息传递方案也用于向接入点提供切换相关信息。 主动检测技术还可以用于识别可能导致切换相关故障的条件,然后适配切换参数以试图防止这种切换相关的故障。 可以通过基于系统中接入点获取的接入终端访问小区历史的分析来适配切换参数来减轻乒乓球。 此外,可以使用可配置的参数(例如,定时器值)来检测切换相关的故障。

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