| Patent application number | Description | Published |
|---|
| 20090117892 | Compensation for Poor Coverage - A method of operating a user equipment, UE, intended to use a service in a wireless communication system having several base stations. The location of the UE is monitored, by the UE, for example with a GPS system or identification of the cell of the corresponding base station. If a problem, such as loss of coverage or call, is imminent or has occurred, information about the location is stored in a memory of the UE. After successful recovery from the problem, the alternative base station used is also stored in the memory. Next time the same location and problem is encountered, the UE uses the previous information for alleviating the problem or perform as fast recovery as possible. In this way, the UE can be operated with less frequent base station searches thereby saving battery, while at the same time sufficient coverage may be obtained. | 05-07-2009 |
| 20100075665 | RADIO ACCESS TECHNOLOGY SELECTION - A method of operating a wireless communication device may include predicting an application expected to be used based on a user interaction with the wireless communications device, determining a preferred radio access technology (RAT) based on the predicted application, determining whether the wireless communications device is currently utilizing the determined preferred RAT as a current RAT, and performing one of ensuring that the wireless communications device continues to utilize the current RAT when the determined preferred RAT corresponds to the current RAT, or searching for the determined preferred RAT when the current RAT does not correspond to the determined preferred RAT and selecting the determined preferred RAT, based on the searching, when the determined preferred RAT is found. | 03-25-2010 |
| 20100136969 | Neighbor Cell List Compilation Methods and Apparatus - A user equipment (UE) in a communication system can keep track of the cell/frequency deployment of a network operator preferred by the user, and based on the tracked information, the UE can build up its own user-specific Neighbor Cell List. When the UE is roaming, the UE does received-signal measurements according to cells and carrier frequencies identified in the broadcast Neighbor Cell Lists of the roamed-into network, but the UE also does received-signal measurements (with higher priority) according to the user-specific Neighbor Cell List that it has built up. Accordingly, a UE implementing a user-specific Neighbor Cell List analyzes its radio environment based on received signals and stores information about that environment, including user-preference information that prioritizes cells in the radio environment. The UE can then carry out cell search based on the stored environment and user-preference information. | 06-03-2010 |
| 20100151878 | Radio Environment Measurements in a Mobile Communication System - A mobile User Equipment (UE) saves power by ascertaining whether it is in a static environment. The UE's changeable state parameters (e.g., time and location) are compared with its historical changeable state data to determine whether a match exists. If the UE is in the static environment and the UE's changeable state presently matches the previously observed changeable state, then the UE repeatedly measures its radio environment at a first rate. If the UE is in the static environment and the UE's changeable state does not presently match the previously observed changeable state, then the UE repeatedly measures its radio environment at a second rate for a predetermined period of time, wherein the first rate is less than the second rate. If the UE is not in the static environment, then it repeatedly measures its radio environment at the second rate for an unrestricted amount of time. | 06-17-2010 |
| 20100283860 | Portable Electronic Apparatus Having More Than One Display Area, And A Method of Controlling a User Interface Thereof - A portable electronic apparatus has first and second display areas. The apparatus has an orientation sensor that provides an orientation sensor output signal indicative of a spatial orientation of the apparatus. The apparatus also has a display controller coupled to the first and second display areas and to the orientation sensor. The display controller controls the first display area and the second display area in either a first display state of a second display state, with less display activity than the first display state. When a movement of the portable electronic apparatus has been determined from the orientation sensor output signal, one of the first and second display areas is switched from the first display state to the second display state, whereas the other display area is switched from the second display state to the first display state. Specifically, the other display area is first switched from the second display state to the first display state, and then, during a transition time period, both display areas are maintained in the first display state. The transition time period is a function of a speed of the determined movement of the portable electronic apparatus. Finally, after the transition period has lapsed, the one display area is switched from the first display state to the second display state. | 11-11-2010 |
| 20100303023 | Power-Efficient Accurate MICH Monitoring in a Mobile Communication System - In a mobile communication system, receiving changed information for a service of interest in a next modification period comprises determining in a current modification period whether an alarm bit whose assertion indicates upcoming changed information is unambiguously associated with the service of interest or whether the alarm bit is associated with the service of interest and one or more services that are not of interest. Mappings of all services to alarm bits are analyzed in the present and possibly in one or more upcoming frames during the current modification period and applied in embodiments to reduce the ambiguity and therefore the risk of false indications of changed data for the service of interest. | 12-02-2010 |
| 20110053566 | Serving Cell Reselection Methods and Apparatus - After a user equipment (UE) in a communication network selects a serving cell for multimedia broadcast and multicast service (MBMS), the UE waits an average time before it can re-select a new MBMS serving cell. The average time is based on keeping track of average MCCH reading time, which varies among network operators. In other words, the UE uses time hysteresis but adapts the value of the time hysteresis to the way an operator has deployed its MBMS functionality. | 03-03-2011 |
| 20110065479 | Portable Electronic Apparatus Having More Than one Display Area, and a Method of Controlling a User Interface Thereof - A portable electronic apparatus having first and second display areas is presented. The apparatus has an orientation sensor that provides an orientation sensor output signal indicative of a spatial orientation of the apparatus. The apparatus also has a display controller coupled to the first and second display areas and to the orientation sensor. The display controller is responsive to the orientation sensor output signal to selectively control the first display area and the second display area. | 03-17-2011 |
