# US 2016/0366603 A1 · Silent redial during mobile-originated call

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- Number: US 2016/0366603 A1
- Document ID: US20160366603A1
- Status: Published application
- Kind: A1
- Application number: 15/245,408
- Filed: 2016-08-24
- Published: 2016-12-15
- Earliest claimed: 2011-07-19
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Arvind SWAMINATHAN; Srinivasan BALASUBRAMANIAN; Samir GINDE
- Web page: https://patentgrep.com/patent/US20160366603A1

## CPC

- H04W 24/04: Arrangements for maintaining operational condition
- H04M 3/424: Arrangements for automatic redialling (at the subscriber's set H04M1/27)
- H04W 28/0268: {using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24)}
- H04W 48/18: Selecting a network or a communication service
- H04W 76/18: Management of setup rejection or failure
- H04W 48/02: Access restriction performed under specific conditions
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

Aspects of the present disclosure provide techniques to speed up and improve silent redial success rates in wireless communications. A user equipment (UE) may determine how to attempt retrying a mobile originated (MO) call and procedures for selecting a subsequent system for attempting the call based, at least in part, on a restriction status of the call and a detected failure.

## Claims

### Claim 1

A method for wireless communications, comprising:
attempting a mobile original call;
receiving a quality of service (QoS) failure message in response to attempting the mobile originated call;
determining that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and
re-attempting the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time.

### Claim 2

An apparatus for wireless communications, comprising:
means for attempting a mobile original call;
means for receiving a quality of service (QoS) failure message in response to attempting the mobile originated call;
means for determining that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and
means for re-attempting the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time.

### Claim 3

An apparatus for wireless communications, comprising:
at least one processor configured to:
attempt a mobile original call;
receive a quality of service (QoS) failure message in response to attempting the mobile originated call;
determine that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and
re-attempt the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time; and
a memory coupled to the at least one processor.

### Claim 4

A non-transitory computer-readable medium having code stored thereon, the code executable by one or more processors for:
attempting a mobile original call;
receiving a quality of service (QoS) failure message in response to attempting the mobile originated call;
determining that the QoS set up failure is due to lack of resources at a destination if a dedicated bearer with required QoS has been set up locally; and
re-attempting the mobile originated call in an effort to save the mobile originated call after a predetermined amount of time.