Patent application number | Description | Published |
20140213210 | Method of Robust Receive (Rx) Processing for Radio Frequency Coexistence Management in Dual-SIM-Dual-Active Communication Devices - The various embodiments include a dual-SIM-dual-active (DSDA) device and methods for implementing robust receive (Rx) processing to resolve radio frequency coexistence interference between two subscriptions operating on the DSDA device. The DSDA device may detect when a subscription (the “aggressor”) de-senses the other subscription (the “victim”) as a result of the aggressor's transmissions, and in response, implement robust Rx processing to mitigate the effects of de-sense on the victim while causing minimal impact to the aggressor. | 07-31-2014 |
20140213235 | Method of Robust Transmit (Tx) Processing for Radio Frequency Coexistence Management in Dual-SIM-Dual-Active communication Devices - The various embodiments include a dual-SIM-dual-active (DSDA) device and methods for implementing robust transmit (Tx) processing to resolve radio frequency coexistence interference between two subscriptions operating on the DSDA device. The DSDA device may detect when one subscription (the “aggressor”) de-senses the other subscription (the “victim”) as a result of the aggressor's transmissions, and in response, implement robust Tx processing to mitigate the effects of de-sense on the victim. | 07-31-2014 |
20140274201 | DUAL-SIM WIRELESS COMMUNICATIONS DEVICE AND METHOD FOR MITIGATING RECEIVER DESENSE IN DUAL-ACTIVE OPERATION - Aspects of the disclosure provide for an access terminal configured to enable communication with two or more wireless communications networks simultaneously. According to some aspects of the disclosure, an access terminal (e.g., dual-SIM access terminal) can be active simultaneously on both networks with reduced interference between transmission and reception. A number of different techniques for mitigating desense on a victim's Rx are illustrated in this disclosure with a GSM aggressor and an EV-DO victim as non-limiting examples. Other aspects, embodiments, and features are also claimed and described | 09-18-2014 |
20150023217 | DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN - A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single RF transmit chain may be scheduled for uplink transmissions associated with the first call and uplink transmissions associated with the second call. A timesharing schedule for the transmit chain may determine timing for the uplink transmissions associated with the first call is transmitted and when the uplink transmissions associated with the second call is transmitted on the transmit chain. Downlink transmissions associated with the first and second calls may be received using different receive chain. Downlink transmissions associated with the first and second calls may be received using the same receive chain. | 01-22-2015 |
20150023230 | DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN - A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single RF transmit chain may be scheduled for uplink transmissions associated with the first call and uplink transmissions associated with the second call. A timesharing schedule for the transmit chain may determine timing for the uplink transmissions associated with the first call is transmitted and when the uplink transmissions associated with the second call is transmitted on the transmit chain. Downlink transmissions associated with the first and second calls may be received using different receive chain. Downlink transmissions associated with the first and second calls may be received using the same receive chain. | 01-22-2015 |
20150023258 | DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN - A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single transmit chain may be used to transmit uplink traffic associated with the first call and uplink traffic associated with the second call. A timesharing schedule for the transmit chain may determine when the uplink traffic associated with the first call is transmitted and when the uplink traffic associated with the second call is transmitted on the transmit chain. Downlink traffic associated with the first and second calls may be received using different receive chain. Downlink traffic associated with the first and second calls may be received using the same receive chain. | 01-22-2015 |
20150271872 | DUAL-SIM WIRELESS COMMUNICATIONS DEVICE AND METHOD FOR MITIGATING RECEIVER DESENSE IN DUAL-ACTIVE OPERATION - Aspects of the disclosure provide for an access terminal configured to enable communication with two or more wireless communications networks simultaneously. According to some aspects of the disclosure, an access terminal (e.g., dual-SIM access terminal) can be active simultaneously on both networks with reduced interference between transmission and reception. A number of different techniques for mitigating desense on a victim's Rx are illustrated in this disclosure with a GSM aggressor and an EV-DO victim as non-limiting examples. Other aspects, embodiments, and features are also claimed and described | 09-24-2015 |
20150282057 | Opportunistic Mobile Receive Diversity (OMRD) in a Dual-SIM Dual-Active (DSDA) Device - Methods and devices are disclosed for implementing opportunistic mobile receive diversity (“OMRD”) on a multi-SIM wireless device. The wireless device may receive a request from a protocol stack associated with the first SIM to utilize the second RF resource for receive diversity, and determine whether a protocol stack associated with the second SIM currently has a lower priority than the protocol stack associated with the first SIM. Upon determining that the protocol stack associated with the second SIM currently has a lower priority than the protocol stack associated with the first SIM, the wireless device may grant control of the second RF resource to the protocol stack associated with the first SIM. Granting control may provide, to the protocol stack associated with the first SIM, a capability to enable and disable receive diversity using the first and second RF resources. | 10-01-2015 |