Abstract:
A predicted offered digital load, a predicted offered analog load, and an analog blocking factor are received to support a determination of the optimal number of analog and digital radios in a dual-mode wireless network. The number of analog radio channels necessary to support the offered analog load at the analog blocking factor is computed. The excess capacity of the needed analog radio channels is determined and a digital blocking factor based upon the excess analog capacity is calculated. The digital blocking factor may then be compared to minimum and maximum overflow values to ensure that the digital blocking factor is neither too high nor too low. The number of needed digital radio channels necessary to support the predicted offered digital load at the digital blocking factor is then calculated. Based upon the needed number of analog and digital radio channels, the number of digital and analog radios necessary is then calculated.
Abstract:
A method for enhancing the voice signal received by a remote user in a time division multiple access (TDMA), cellular telephone system. In order to enhance the signal received by a remote user in a TDMA cellular telephone system, the base station transmits to the remote user in need of signal improvement additional signal enhancing data on one or more previously idle transmission resources. The method includes identifying the first remote user in need of signal enhancing data, identifying and selecting an idle transmission resource, identifying for the first remote user the selected transmission resource, generating additional signal enhancing data, and inserting the additional signal enhancing data into the selected transmission resource for transmission to the first remote user. If the selected transmission resource is required to provide primary service to a second remote user, the selected resource will be reassigned to the second requesting user, and the transmission of additional signal enhancing data to the first remote user will be terminated.
Abstract:
Devices, systems, and methods are disclosed to offload the usage of a cellular network by intelligent selection of broadband network connections such as Wi-Fi access points. A Wi-Fi transceiver on a mobile device is activated when certain conditions are met, such as a time, location, recognition of a radiofrequency (RF) environment, etc. The conditions are correlated with a database of known locations in which a one or more Wi-Fi access points are determined to exist. The Wi-Fi transceiver on the mobile device is activated and commanded to connect to a particular Wi-Fi access point. Dynamic intelligence ensures that the appropriate connection method is used, and minimizes handovers to networks or access points that are unreliable or that are predicted to become inaccessible to the mobile device.
Abstract:
A method of allocating time slots in a time division multiple access cellular telephone system increases the traffic capacity of a base station's RF channel. A method is provided for operating in half rate mode while maintaining adequate signal quality over the RF channel communications link between a base station and a mobile station. In full rate mode, each mobile station is allocated at least four of the twelve slots. For mobile stations experiencing little or no signal deterioration from other sources, a channel can be operated in half rate mode with little or no adverse effect to the signal quality. For mobile stations that are experiencing signal deterioration, the same channel can provide full rate mode support.