Patent application number | Description | Published |
20090302966 | METHOD AND SYSTEM FOR OPTIMAL FREQUENCY PLANNING FOR AN INTEGRATED COMMUNICATION SYSTEM WITH MULTIPLE RECEIVERS - Methods and systems for optimal frequency planning for an integrated communication system with multiple receivers may include adjusting a center frequency of a low IF signal to reduce interference by a second order interference signal. The center frequency may be adjusted to avoid high power portions of the second order interference signal. The interference level corresponding to a center frequency may be determined by, for example, a SNR of the low IF signal, or by determining a BER for the low IF signal. The center frequency of the low IF signal may be dynamically adjusted to keep second order interference level at an acceptable level. Adjusting the center frequency of the low IF signal may also comprise keeping the low IF signal from being blocked by a DC component of the second order interference signal. | 12-10-2009 |
20090312010 | METHOD AND SYSTEM FOR BLUETOOTH AND WIMAX COEXISTENCE - WiMAX and Bluetooth coexistence may be enabled in a wireless device that comprises collocated WIMAX subsystem and Bluetooth subsystem. Concurrent WiMAX and Bluetooth communications may be carried on via the wireless device to the extent that WiMAX communication is unaffected by the Bluetooth communications. Scheduling of Bluetooth communications may be performed to optimize Bluetooth communication while avoiding potential collision with the WiMAX communication. The Bluetooth communication scheduling may allow Bluetooth messaging transmission during active WiMAX uplink slots and/or inactive WiMAX slots, Bluetooth messaging reception during active WiMAX downlink slots and/or inactive WiMAX slots, and/or no Bluetooth transmission during active WiMAX downlink slots. Clock signals utilized in the WiMAX subsystem and the Bluetooth subsystem may be synchronized to ensure that Bluetooth communication is aligned with the WiMAX frames. When more than one Bluetooth profile are active and/or needed, prioritization among the Bluetooth profiles may be utilized when scheduling Bluetooth communications. | 12-17-2009 |
20100046496 | METHOD AND SYSTEM FOR BLUETOOTH CONNECTION SETUP IN A MULTI-STANDARD MULTI-RADIO COMMUNICATION SYSTEM - Aspects of a method and system for Bluetooth connection setup in a multi-standard multi-radio communication system are provided. In this regard, a Bluetooth system may be operable to determine whether a coexistent time division multiplexing communication system is receiving signals and to control the types of packets it transmits based on the determination. While the coexistent time division multiplexing communication system is receiving signals, the Bluetooth system may be limited to transmission of Bluetooth packets that enable establishment of a Bluetooth connection. For example the Bluetooth system may be limited to sending ID packets in response to page packets and FHS packets and/or may be limited to sending FHS packets. Also, the Bluetooth system may refrain from transmitting packets while the Bluetooth system is connected as a piconet master and while the time division multiplexing communication system is receiving. | 02-25-2010 |
20100046498 | METHOD AND SYSTEM FOR SLEEP MODE SIGNALING FOR A MULTI-STANDARD SYSTEM WITH BLUETOOTH - Aspects of a method and system for sleep mode signaling for a multi-standard system with Bluetooth are provided. In this regard, a first communication system that communicates utilizing TDM may generate a synchronization signal that is communicatively coupled to a second communication system that communicates utilizing TDM. The first communication system may determine one or more timeslots during which it may be inactive. The first communication system may control, based on the determination, an amount of time that the synchronization signal is in one or more states. The second communication system may receive the synchronization signal from the first communication system. The second communication system may determine timeslots during which the first communication system may be inactive based on an amount of time that the synchronization signal is in one or more states. The second communication system may transmit and/or receive at times that are scheduled based on the determination. | 02-25-2010 |
20100120362 | METHOD AND SYSTEM FOR QUICK BLUETOOTH LOW ENERGY (BLE) PROTOCOL SIGNAL PRESENCE DETECTION FOR COEXISTENCE - Aspects of the invention may comprise managing operations of BLE interfaces and/or other radio interfaces in a wireless device to mitigate interference to communication via the BLE interfaces by the other radio interfaces. Operating parameters may be communicated between the BLE interfaces and the other radio interfaces to enable mitigating the interference to the BLE interfaces, and at least some of the BLE interfaces and/or the other radio interfaces may be configured based on the communicated operating parameters. The operating parameters may comprise adaptive frequency hopping (AFH) maps that may be adjusted to prevent use of common and/or used channels. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication. BLE communication may be predicted based on monitoring of frequency bands used during BLE communication, and/or monitoring of events that may trigger and/or occur during BLE communication. | 05-13-2010 |
20130084803 | Optimization of NFC Tag For Different Battery Levels - A mobile communication device has a processor, a radio, a near field communication (NFC) device, a battery, and memory for storing data. The power level of the battery is measured. When the measured power level is above a first predetermined level, power is provided to the radio to allow communication. Sufficient power is provided to operate the NFC device as a reader and a tag. When the measured power level of the battery falls below the first predetermined level, battery power to the radio is shut off. Sufficient power is maintained to the NFL device to allow it to operate only as a tag. Sufficient power is maintained to the memory to retain the data stored in the memory. When the measured power level of the battery falls below a second predetermined level, the NFC device is required to harvest all of its power from the field. | 04-04-2013 |
20130155931 | TIME DOMAIN COEXISTENCE OF RF SIGNALS - Various methods and systems are provided for time domain coexistence of RF signals. In one example, among others, a method includes obtaining access to a WLAN channel during a free period of a coexisting cellular connection, providing a RDG to allow another device to transmit for a duration corresponding to at least a portion of a TXOP, and receiving a transmission during the duration. In another example, a method includes obtaining access to a WLAN channel during a transmission period of a coexisting cellular connection and providing a protection frame to defer transmissions from another device for a duration corresponding to at least a portion of a TXOP. In another example, a method includes determining a shift of a BT transaction based at least in part upon a schedule of cellular communications and shifting at least a portion of the BT transaction based upon the determined shift. | 06-20-2013 |
20130196643 | DYNAMIC SPACE, FREQUENCY AND TIME DOMAIN COEXISTENCE - Various methods and systems are provided for space, frequency and time domain coexistence of RF signals. In one example, among others, a communication device includes a coexistence manager capable of monitoring operating conditions of a cellular modem and a coexistence assistant capable of monitoring operating conditions of a wireless connectivity unit. The coexistence manager is capable of modifying operation of the modem and/or unit based on an operating condition change. In another example, a method includes detecting a change in antenna isolation and/or operating temperature of a FE filter, determining filtering characteristics of the FE filter based at least in part upon the change, and modifying communications of coexisting communication protocols based at least in part upon the filtering characteristics. In another example, a TX/RX configuration for coexisting communication protocols is determined and communications in a protocol is modified based at least in part upon the TX/RX configuration. | 08-01-2013 |
20140087655 | SYSTEMS AND METHODS FOR DETERMINING WHETHER A COMPANION COMMUNICATION DEVICE IS BEYOND A PROXIMITY OF A PRIMARY COMMUNICATION DEVICE - Systems and methods for determining whether a companion communication device is beyond a proximity of a primary communication device are provided. In some aspects, a system includes an analysis module configured to determine whether a wireless transaction between the primary communication device and the companion communication device is at a conclusion. The system also includes a communications module configured to emit a sensing signal based on the determination of whether the transaction is at the conclusion. The sensing signal is insufficient to elicit a response from the companion communication device. The system also includes a detection module configured to detect a present parameter associated with the emitted sensing signal. The analysis module is configured to determine a parameter change between the present parameter and a reference parameter, and to determine whether the companion communication device is beyond the proximity of the primary communication device based on the parameter change. | 03-27-2014 |
Patent application number | Description | Published |
20090163212 | HANDOVER FOR CELLULAR RADIO SYSTEMS - In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment. A reduction in the average number of servers held in sets of servers for serving the user equipment has the benefit of reducing data traffic loading in a backhaul network, since the need to send duplicated data to each member of sets of servers is reduced and/or increasing network capacity, since the radio resource is used more efficiently because the proportion of servers sending duplicate data is reduced. | 06-25-2009 |
20100091745 | COVERAGE OPTIMISATION FOR WIRELESS NETWORKS - In a wireless network comprising access points deployed within a designated zone of coverage, the radio frequency field strength resulting from radiation from the access points is optimised as a function of location by means of control of the transmission power and/or radiation pattern of the access points in response to measurements from sensors at defined locations that measure received signal power, the received power being related to radio frequency field strength. Sensors may be deployed within the designated zone of coverage, at the edge of the zone and/or outside the zone and optimisation of the transmission parameters of the access points in terms of transmission power and/or radiation pattern is carried out taking into account the location of the sensors in addition to the received power at the sensors. | 04-15-2010 |
20110181482 | Antenna - Embodiments of the invention relate to an antenna structure and are particularly suited to array antennas. Conventionally, an antenna of the cavity-backed slot-radiating type comprises a slot formed in an end of an electrically conductive enclosure, which slot may be energised by a radiating element in registration with the slot. A feed network may connect to the radiating element via a transmission line formed by a conductive track on a feed layer located between the enclosure and an electrically conductive cover. A slot is formed in the section of the cover that covers the end of the cavity in which a slot is formed, such that the two slots are of substantially the same size and shape. A problem with this structure is that the cavity is difficult to mould in one piece and it can be difficult to achieve alignment of respective slots; as a result it is relatively costly to manufacture. Also, it is difficult to insert dielectric material into the enclosure to adjust the performance parameters of the antenna. An antenna according to an embodiment of the invention employs an enclosure having an aperture in one end; in preferred arrangements the aperture provides the enclosure with a substantially open end, over which the cover is placed. The cover has a slot therein, of a smaller size than the size of the aperture presented by the open ended enclosure and the slot in the cover then acts as the radiating slot. The benefit is that it is then easier to insert dielectric material into the enclosure and the enclosure is easier to mould in one piece, leading to a potential cost reduction. | 07-28-2011 |
20110223906 | Handover for Cellular Radio Systems - In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment. A reduction in the average number of servers held in sets of servers for serving the user equipment has the benefit of reducing data traffic loading in a backhaul network, since the need to send duplicated data to each member of sets of servers is reduced and/or increasing network capacity, since the radio resource is used more efficiently because the proportion of servers sending duplicate data is reduced. | 09-15-2011 |
20120276902 | HANDOVER FOR CELLULAR RADIO SYSTEMS - In a cellular wireless system, power thresholds used for determining whether to add or drop servers held in a set of servers, such as an active set, for serving a user equipment (UE) are determined based on the motion of the respective UE. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving UE than would be used for the same server with respect to adding or dropping to or from a set of servers for serving a slow moving UE, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of UEs moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a UE. | 11-01-2012 |
20130012209 | HANDOVER FOR CELLULAR RADIO SYSTEMS - In a cellular wireless system, power thresholds used for determining whether to add or drop servers held in a set of servers, such as an active set, for serving a user equipment SUE) are determined based on the motion of the respective UE user. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving UE than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving UE, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of UEs moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a UE. | 01-10-2013 |
Patent application number | Description | Published |
20110167349 | ANNOTATION FEATURE FOR PRODUCTION PARTS IN A MEDIA PRODUCTION SYSTEM - A system providing a user interface to annotate different items in a media production system such as in a digital non-linear post production system. Parts of the production, such as clips, frames and layers, that have an associated annotation are provided with a visual annotation marker. The annotation marker can use shape, color or animation to convey source, urgency, status or other information. Annotations can be text, freehand drawing, audio, or other. Annotations can be automatically generated. Annotations can be compiled into records, searched and transferred. A state of an application program can be stored and transferred to a remote system. The remote system attempts to recreate the original state of the application program. If the remote system is unable to do so, an image of the state of the application program is obtained, instead. Assignment of control to various functions of an application program is achieved by associating a function (i.e., modifying a parameter) with a user control at a remote location. | 07-07-2011 |
20120159342 | ASSIGNMENT OF A LOCAL FUNCTION TO A REMOTE USER CONTROL IN A MEDIA PRODUCTION SYSTEM - A state of an application program can be stored and transferred to a remote system. The remote system attempts to recreate the original state of the application program. If the remote system is unable to do so, an image of the state of the application program is obtained, instead. Assignment of control to various functions of an application program is achieved by associating a function (i.e., modifying a parameter) with a user control at a remote location. | 06-21-2012 |