Abstract:
A deployment and distribution model improves content delivery with a business incentive for placement of kiosks with one or more wireless access points in public locations so that portable media players (PMPs) can receive media content (e.g., audio, video, text, haptic content, etc.). In addition, coordination between subscribing users of PMPs, vendors who provide kiosks, and a network central controller of a content distribution system allow for prepositioning of video content at the kiosks through economically desirable low data rate communication links from the network (e.g., dial- up modem, DSL, etc.); coordinated queuing of downloads (e.g., partial downloads) between kiosk to PMP, peer-to-peer (P2P) downloading between PMPs, and uploads from PMP to kiosk; billing/crediting to correspond with such participation in the distribution; and changing priority/selection of prepositioning of content at kiosks to reflect a clientele profile.
Abstract:
Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Further aspects determine handover of a connection of a device to a femto enabled device if both. devices are in close proximity. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a. backhaul, and local broadcast of media though utilization of femto enabled devices.
Abstract:
A private communication network through which a plurality of member users communicate using the public switched telephone network (PSTN) (10) is disclosed herein. Each member user utilizes either a modified land line telephone (48) directly connected to PSTN (10), or uses a modified mobile telephone (22) operatively coupled to the PSTN through a wireless communication system (14). The private communication network includes network call manager (40) having a telephone network interface (92) for establishing a telephone connection with each of a plurality of telephone lines (44) of the PSTN (20). Each of the plurality of telephone lines (44) is associated with one of the plurality of member users. The network call manager (40) further includes a switch matrix (110), coupled to the telephone network interface, for providing an information signal received from an active member user over a selected telephone line to the remaining non-active member users.
Abstract:
Exemplary embodiments are directed to wireless power transfer. A transmitting device or a receiving device for use in a wireless transfer system may be equipment or a household appliance. The transmitting device includes a transmit antenna to wirelessly transfer power to a receive antenna by generating a near field radiation within a coupling-mode region. An amplifier applies an RF signal to the transmit antenna. A presence detector detects a presence of a receiver device within the coupling-mode region. A controller adjusts a power output of the amplifier responsive to the presence of a receiver device. The presence detector may also detect a human presence. The power output may be adjusted at or below the regulatory level when the presence signal indicates human presence and above a regulatory level when the presence signal indicates human absence.
Abstract:
To reduce the power consumption of a remote unit in a dispatch system the remote unit enters a dormant state. A base station (32) transmits a forward link broadcast signal and monitors a common access channel. A first remote unit (10) continually receives and decodes the forward link broadcast signal and determines whether said forward link broadcast signal comprises active signals (106). If the remote unit determines that the forward link broadcast signal comprises no active signals for some a duration T1, the first remote unit enters a dormant mode (148). In the dormant mode the remote unit sporadically receives and decodes said forward link broadcast signal. If this remote unit or any other remote unit on the same net presses a push to talk button (128, 130), it transmits a message on the common access channel. In response, every remote unit on the net which is in a dormant state exits the dormant state and continually monitors the forward link broadcast signal.
Abstract:
A method and apparatus to provide access to a dispatch system is disclosed. A communications manager (40) grants an exclusive system talker privilege to one remote unit (10) in the system at a time. After a remote unit (10) requests and is designated as the exclusive system talker, no other remote unit (20, 22) may transmit for a first pre-determined amount of time. After the first pre-determined time has elapsed, any other remote unit (20, 22) may request the exclusive system talker privilege and become the exclusive system talker. The exclusive system talker privilege is revoked by the communications manager (40) to any remote unit who retains the exclusive system talker privilege for more than a second pre-determined amount of time. The exclusive system talker privilege is also revoked upon the release of a push-to-talk button on a remote unit (10). Furthermore, a base station (44) in communication with a remote unit (10) designated as the exclusive system talker will generate a surrogate relinquishment request to the communications manager (40) if the exclusive system talker travels outside the coverage area of the system, loses power, or is destroyed.
Abstract:
In a push-to-talk dispatch system, a method and apparatus for providing an accelerated response to a push-to-talk origination message. A first base station allocates a first set of equipment to support a push-to-talk connection. A first system controller allocates a second set of equipment to support the push-to-talk connection. Upon receipt of a push-to-talk origination message from a first remote unit, the first base station transmits an immediate response to the first remote unit, instructing it to communicate through the first set of equipment and the second set of allocated equipment.
Abstract:
Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In 5 a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple 10 transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission. z co C0 C)-J c I L m C) 0 C)o cL L Uo 0z _ HL F-~
Abstract:
Un procedimiento de operación de una red de acceso múltiple que incluye uno o más nodos (104) de accesode una red celular que sirve a una pluralidad de terminales (106) de acceso en el que un nodo (104) de accesolleva a cabo las etapas de: determinar que hay disponible un modo de comunicación par a par para una comunicación que usa unalista de canales utilizables; e iniciar el establecimiento para pasar al menos un terminal de acceso en la pluralidad de terminales (106) deacceso a una operación de comunicación par a par usando una comunicación punto a punto con al menosotro terminal de acceso y en el que al menos un primer terminal de acceso lleva a cabo las etapas de:transmitir comunicaciones (110) par a par a un segundo terminal (106) de acceso en la pluralidad determinales (106) de acceso por una frecuencia de enlace inverso de la red celular (100); recibir comunicaciones (110) par a par desde el segundo terminal de acceso en la pluralidad determinales (106) de acceso por la frecuencia de enlace inverso de la red celular (100);recibir instrucciones de control de potencia para el control de potencia de bucle cerrado procedentes delnodo (104) de acceso por una frecuencia de enlace directo de la red celular y del segundo terminal(106) de acceso por la frecuencia de enlace inverso de la red celular; y ajustar un nivel de potencia de transmisión para transmisiones par a par hacia el segundo terminal deacceso por la frecuencia de enlace inverso de la red celular, sujeto a las instrucciones de control depotencia recibidas del nodo de acceso de la red celular.