Cesar L Perez

US Patent:

20140031022, Jan 30, 2014

Filed:

Apr 11, 2013

Appl. No.:

13/861028

Inventors:

Madhusudan Chaudhary - Campbell CA, US
Cesar Perez - Sunnyvale CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04W 64/00
H04W 8/22

US Classification:

455418, 4554321

Abstract:

A user identity module (UIM) is incorporated in user equipment such as a mobile phone or mobile device. The UIM is configured to provision itself while roaming away from a home network as follows. The UIM may: send to the UE a request for information identifying a current radio access technology (RAT) that the UE is camped on; receive the current RAT information from the UE; send to the UE a request for network location information, where the network location information identifies a network in which the UE is currently camped; receive the network location information from the UE; generate an access point name (APN) using the current RAT information and the network location information; and open a channel through the network to a remote agent (e.g., a provisioning server) using the access point name.

US Patent:

20210377941, Dec 2, 2021

Filed:

Sep 20, 2018

Appl. No.:

17/250886

Inventors:

- Cupertino CA, US
Haijing HU - Los Gatos CA, US
Sreevalsan VALLATH - Dublin CA, US
Prateek SHARMA - San Jose CA, US
Cesar PEREZ - Sunnyvale CA, US
Adesh KUMAR - San Jose CA, US
Deepankar BHATTACHARJEE - Milpitas CA, US
Vijay VENKATARAMAN - San Jose CA, US

International Classification:

H04W 72/04
H04L 5/00

Abstract:

A user equipment (UE) is configured with a carrier aggregation (CA) functionality and UE connected to a network via a base station that serves as a primary serving cell (PCell) providing a primary component carrier (PCC) to the UE. The UE determines a plurality of bands that are supported by the UE for use in the CA functionality, generates an individual band information element (IE) including band information for the bands, determines at least one representative CA combination having an order, the order indicating a total number of component carriers (CCs), the at least one representative CA combination forming a basis to extrapolate a plurality of CA combinations having the order based on the band information, generates a representative CA combination IE including the at least one representative CA combination and transmits the individual band IE and the representative CA combination IE to the base station.

US Patent:

20200120601, Apr 16, 2020

Filed:

Dec 12, 2019

Appl. No.:

16/711604

Inventors:

- Cupertino CA, US
Rafael L. Rivera-Barreto - Santa Clara CA, US
Krisztian Kiss - Hayward CA, US
Rohan C. Malthankar - San Jose CA, US
Tarik Tabet - Los Gatos CA, US
Cesar Perez - Sunnyvale CA, US

International Classification:

H04W 52/02
H04L 29/06
H04W 4/90
H04W 4/14

Abstract:

Distributing indications of emergency messages via Wi-Fi. A cellular device may temporarily disable its cellular modem. The cellular device may receive an indication over Wi-Fi that an emergency message has been broadcast. In response, the cellular device may activate its cellular modem and retrieve the emergency message via a cellular network.

US Patent:

20200059941, Feb 20, 2020

Filed:

Oct 28, 2019

Appl. No.:

16/665256

Inventors:

- Cupertino CA, US
Paul V. Flynn - Menlo Park CA, US
Louie J. Sanguinetti - Los Gatos CA, US
Bernd W. Adler - Saratoga CA, US
Christian W. Mucke - Cupertino CA, US
Joseph Hakim - Soquel CA, US
Ronald W. Dimpflmaier - Los Gatos CA, US
Matthias Sauer - San Jose CA, US
Tushar R. Shah - Cupertino CA, US
Daniel R. Borges - San Francisco CA, US
Rafael L. Rivera-Barreto - Santa Clara CA, US
Cesar Perez - Sunnyvale CA, US

International Classification:

H04W 72/12
H04W 72/08
H04W 72/04
H04W 16/14
H04B 7/06

Abstract:

An apparatus such as a wireless communication device (UE) may include first circuitry configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, where the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum. The apparatus may include second circuitry configured to conduct wireless communications according to a second RAT in the first frequency band, wherein the second RAT is a wireless local area network (WLAN) RAT. The apparatus may be configured to determine to perform a scan operation in the first frequency band using the first circuitry and, based on one or more transmissions by the second circuitry using the first frequency band, adjust one or more parameters for the scan measurement by the first circuitry. The cellular communications in the first frequency band may be LAA communications, for example.

US Patent:

20200008007, Jan 2, 2020

Filed:

Jun 26, 2019

Appl. No.:

16/452600

Inventors:

- Cupertino CA, US
Cesar Perez - Sunnyvale CA, US
Rafael L. Rivera-Barreto - Santa Clara CA, US

International Classification:

H04W 4/021
H04W 8/00
H04W 4/50
H04W 8/08
H04W 24/08

Abstract:

A device, e.g. a wireless communication device may obtain information associated with private cellular networks from a provisioning server. The information may provide an indication of coverage area(s) of available private cellular network(s). The device may communicate over a commercial cellular network, and determine, based at least on the information, whether the device is located within the coverage area of any available private cellular networks. The device may connect to a first private cellular network (FPCN) of the available private cellular networks and switch from communicating over the commercial cellular network to communicating over the FPCN at least in response to the determination indicating that the device is located within the indicated coverage area. The device may disconnect from the FPCN in response to a determination that the signal level of the FPCN is below a specified value and the device is not using a wallet garden application.

US Patent:

20180092109, Mar 29, 2018

Filed:

Sep 21, 2017

Appl. No.:

15/711061

Inventors:

- Cupertino CA, US
Paul V. Flynn - Menlo Park CA, US
Louie J. Sanguinetti - Los Gatos CA, US
Bernd W. Adler - Saratoga CA, US
Christian W. Mucke - Cupertino CA, US
Joseph Hakim - Soquel CA, US
Ronald W. Dimpflmaier - Los Gatos CA, US
Matthias Sauer - San Jose CA, US
Tushar R. Shah - Cupertino CA, US
Daniel R. Borges - San Francisco CA, US
Rafael L. Rivera-Barreto - Santa Clara CA, US
Cesar Perez - Sunnyvale CA, US

International Classification:

H04W 72/12
H04W 16/14
H04W 72/04
H04W 72/08
H04B 7/06

Abstract:

A wireless communication device (UE) includes a cellular processor configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum. In some embodiments, the apparatus includes a wireless local area network (WLAN) processor configured to conduct wireless communications according to a second RAT in the first frequency band. In some embodiments, the cellular processor and the WLAN processor are configured to couple to a common antenna for communications in the first frequency band. In some embodiments, the cellular processor may notify the WLAN processor when it is scanning and/or when it is assigned secondary component carriers in the first frequency band. In some embodiments, the WLAN processor may notify the cellular processor when it is transmitting. In some embodiments, the WLAN processor and/or the cellular processor may perform one or more actions in response to such notifications to improve coexistence in the first frequency band.

US Patent:

20170359829, Dec 14, 2017

Filed:

Apr 25, 2017

Appl. No.:

15/496388

Inventors:

- Cupertino CA, US
Samy Khay-Ibbat - San Francisco CA, US
Krisztian Kiss - Hayward CA, US
Rafael L. Rivera-Barreto - Santa Clara CA, US
Cesar Perez - Sunnyvale CA, US
Moustafa M. Elsayed - Los Gatos CA, US
Prashant H. Vashi - Sunnyvale CA, US

International Classification:

H04W 72/08
H04W 72/04

Abstract:

A user equipment (UE) device may communicate according to a new device category satisfying specified QoS (quality of service) requirements while also satisfying specified link budget requirements, and additional optimization requirements. The new device category may identify the UE device as a wearable device. According to some embodiments, LTE category M may be extended to support non-MTC operations performed by wearable devices. For example, the new device category may support UE mobility and may disallow access barring. Additional extensions may be implemented in response to an indication by the UE that the UE is implementing a specific application, such as VoLTE or a near real-time application, such as audio streaming. In some scenarios, the indication may include the UE indicating a specific QCI value. In some scenarios, the indication may include the UE attaching to a specific APN.

US Patent:

20170171814, Jun 15, 2017

Filed:

Dec 15, 2016

Appl. No.:

15/380175

Inventors:

- Cupertino CA, US
Rafael L. Rivera-Barreto - Santa Clara CA, US
Krisztian Kiss - Hayward CA, US
Rohan C. Malthankar - San Jose CA, US
Tarik Tabet - Los Gatos CA, US
Cesar Perez - Sunnyvale CA, US

International Classification:

H04W 52/02
H04W 4/14
H04W 60/00
H04W 4/22

Abstract:

Distributing indications of emergency messages via Wi-Fi. A cellular device may temporarily disable its cellular modem. The cellular device may receive an indication over Wi-Fi that an emergency message has been broadcast. In response, the cellular device may activate its cellular modem and retrieve the emergency message via a cellular network.