公开(公告)号：US09226210B1

公开(公告)日：2015-12-29

申请号：US13947568

申请日：2013-07-22

Applicant: Sprint Spectrum L.P.

Inventor： Ahmad N. Saleh ,  Siddharth S. Oroskar ,  Jose L. Hernandez

IPC: H04W36/22

CPC classification number: H04W36/22 ,  H04W36/0022

Abstract: A method and system to help manage latency in setup of fallback communications, such as circuit switched fallback calls for instance, by taking into account the load on various fallback carriers. When a first network is serving a device and engages in a process to facilitate setup of a communication for the device to be served by a second, fallback network, the first network will work with the second network to determine which local carriers of the second network are least loaded, and the first network will then direct the WCD to scan those determined least-loaded carriers in particular. This process may thus help to avoid having the WCD spend time scanning local carriers of the second network that the second network is unlikely to assign in any event due to loading.

Abstract translation: 一种方法和系统，用于通过考虑各种后备运营商的负载来帮助管理诸如电路交换回退呼叫的设置中的延迟。 当第一网络正在服务设备并且参与一个过程以便于建立要由第二备用网络服务的设备的通信时，第一网络将与第二网络一起确定第二网络的哪些本地载波 最不加载，并且第一网络将引导WCD特别地扫描确定的最小负载的载波。 因此，该过程可以有助于避免WCD花费时间扫描第二网络的本地载波，使得由于加载而在任何情况下第二网络不太可能分配。

公开(公告)号：US09843967B1

公开(公告)日：2017-12-12

申请号：US14057686

申请日：2013-10-18

Applicant: Sprint Spectrum L.P.

Inventor： Siddharth S. Oroskar ,  Jose L. Hernandez ,  Ahmad N. Saleh

IPC: H04W80/04 ,  H04W36/00 ,  H04W48/16

CPC classification number: H04W36/0022 ,  H04W48/16

Abstract: Disclosed is a method and system to help manage latency and reduce unnecessary signaling in setup of fallback communications, such as circuit switched fallback calls for instance, by taking into account the load in various fallback coverage areas. When the load of a fallback coverage area is threshold high, signaling may pass to a serving network to cause that fallback coverage area to be filtered out of a list of fallback coverage areas that a base station of the serving network would provide to a served device, so as to help avoid having the device scan for coverage of that fallback coverage area.

公开(公告)号：US09681411B1

公开(公告)日：2017-06-13

申请号：US14530650

申请日：2014-10-31

Applicant: Sprint Spectrum L.P.

Inventor： Ahmad Saleh ,  Deveshkumar N. Rai ,  Saravana Velusamy ,  Jose L. Hernandez ,  Naresh Madineni

IPC: H04W60/00 ,  H04W36/14 ,  H04W60/04 ,  H04W8/26

CPC classification number: H04W60/00 ,  H04W8/26 ,  H04W36/0022 ,  H04W36/14 ,  H04W60/04

Abstract: A method is disclosed to help register a UE with a different network in the event of an unsuccessful registration with a fallback network. In accordance with the disclosure, a UE may be registered on a first network and may then seek to register with a second network via the first network. The first network may attempt to register the UE with the second network, but the attempt to register the UE with the second network may ultimately fail. In response to such failure, the first network may discontinue providing service to the UE. Discontinuing the providing of service to the UE on the first network may result in the UE seeking to register directly with the second network or with a different network. By registering directly with the second network, or a different network, the UE may be able to initiate and/or receive voice calls via that network.

公开(公告)号：US09253747B1

公开(公告)日：2016-02-02

申请号：US14533365

申请日：2014-11-05

Applicant: Sprint Spectrum L.P.

Inventor： Ahmad N. Saleh ,  Kristin A. Hayne ,  Jose L. Hernandez

IPC: H04W4/00 ,  H04W60/04 ,  H04W36/14 ,  H04W36/00

CPC classification number: H04W60/04 ,  H04W36/0022 ,  H04W36/0066

Abstract: Disclosed is a method and corresponding system for managing CSFB pre-registration. A first network serving a UE releases the UE from being served by the first network and redirects the UE to transition from being served by the first network to being served by a second network. The first network then detects that the UE has returned to be served by the first network. In response to detecting the return of the UE, and based on the previous releasing and redirecting of the UE, the first network then initiates a pre-registration of the UE with the second network to inform the second network that the UE is now reachable via the first network.

Abstract translation: 公开了一种用于管理CSFB预注册的方法和相应的系统。 服务于UE的第一网络释放UE不被第一网络服务，并且将UE重定向到从第一网络服务转换为由第二网络服务。 然后，第一网络检测到UE已经返回由第一网络服务。 响应于检测到UE的返回，并且基于先前的UE的释放和重定向，第一网络然后发起UE与第二网络的预注册，以通知第二网络UE现在可以经由 第一个网络。