摘要:
A method of extending, for enabled stations, the number of information states conveyed by a signal employed by legacy (non-enabled) stations. The additional information states may convey a Broadcast/Multicast Service (BCMCS) Indication by means of tristate modulation, including binary phase shift keying plus zero amplitude. A signal, such as a quick paging (QP) message, is selected because legacy receivers combine subunits of the message before the data content is determined. Complementary modulation is applied to the subunits, such that legacy combining renders the message information indistinguishable from harmless messages, yet distinguishable as a distinct additional information state in a legacy receiver. For example, a legacy receiver cannot distinguish a new QP message from a “zero” signal, due to application of inverse BPSK to the subunits. An enabled station may thus detect new information, such as a BCMCS Indicator, in a manner that is compatible with legacy stations.
摘要:
In a method and apparatus suitable to convey timely information for facilitating accurate reception of transmitted data, a pilot signal is modulated to convey information. The information may facilitate efficient interpretation of an associated traffic signal. Modulation of a pilot signal frame may be limited to ensure early detection, and/or to minimize impairment of pilot functionality. In one embodiment, a Secondary Pilot Channel (SPICH) is transmitted at one of several selectable power levels to boost effectiveness of a phase reference, and is modulated to indicate the selected level. Such timely information enables prompt optimal combining of the SPICH with a primary Pilot Channel (PICH), and/or permits processing efficiencies for an associated traffic channel. Pilot signal frames may be transmitted at a predetermined level during a detection preamble portion of a frame to ensure accurate and early detection, and at a more optimal level thereafter.
摘要:
In a CDMA cellular radiotelephone system, a soft handoff (SHO) is performed when a mobile station communicates with a new inter-generation base station, without interrupting communications with the old base station. Currently, a SHO can only be used between CDMA channels having identical frequency assignments and within the same system generation (i.e., 2G2G, or 3G3G, where 2G is a second generation system, and 3G is a third generation system). The proposed IS-2000 standard for a 2G3G handoff is a hard handoff or “Break-Before-Make” procedure, which greatly reduces the quality of service (QOS). The present invention allows for SHO between second and third generation CDMA systems (2G3G and 3G2G), by modifying the proposed messaging structure. This provides a smooth service transition when a mobile station travels from one service area (i.e., 2G), to another service area (i.e., 3G), using the SHO or “Make-Before-Break” approach.
摘要:
A method allowing the synchronizing collection of motion and ground reaction forces data at the start of a sporting event which are received from motion and force sensors embedded in insoles worn in the user's footwear. Furthermore, this method allows synchronization of said data with video or television transmission, and if used during, for example, during ski racing, provides information of skis' pitch, roll and heading in a 3-D space, as well as linear and angular velocity, g-forces, and the location and distribution of pressure points and ground reaction forces transferred to the user's feet in a numerical or a graphical form.
摘要:
A system for analysis of user gait and to provide correction in form of haptic and visual feedback. This system comprises a motion and force sensors and a haptic actuator embedded in the user shoe insoles in communication with a smart-phone based analysis application, configured to calculate motion and orientation of the user feet in relation to the value, location and distribution of ground reaction forces measured by sensors located in the shoe insoles and after analysis of said forces and motion, to provide haptic feedback to the user foot instructing about the location (and timing) of pressure the user must apply to achieve an optimal gait.
摘要:
Automatic provisioning of an access point base station or femtocell. The method may include the femtocell transmitting first information (e.g., location information, signal measurement information, capability information, etc.) to a service provider (e.g., over an IP network). The femtocell may receive second information from the service provider, where the second information includes one or more operational parameters. The operational parameters may include hand-off parameters, admission policy parameters, PN or scrambling codes, power parameters, and/or other parameters. The femtocell may operate according to the received parameters to provide access for a plurality of access terminals in a local area.
摘要:
A wireless hierarchical heterogonous pico-net providing communication between smart-phone based analysis and control application and multiplicity of sensors and actuators embedded in the ski equipment is described. The topology of this pico-net comprises two layers of hierarch, where the first layer is configured as a Bluetooth wireless network using a Round-Robin scheduling method and consisting of a single master and up-to seven slaves, and the second layer of the hierarchy is configured as a sub-nets consisting of multiplicity of sensors and actuators and communicating internally using ANT personal area network (PAN) wireless interface, or via a digital wire interface. Such network topology provides deterministic latency of a hierarchy a single-hop Bluetooth network, irrespective of the numbers of sensors and actuators embedded within each sub-net of the second layer of hierarchy. The network latency is upper-bounded by the number of slaves in the first layer of hierarch, Furthermore, the Round-Robin scheduling method is supplemented with the gating-off the slave RF transmission when the slave has no data to send, or when the difference between current sensor samples and the previous sensor sample is smaller then predefined threshold. Such discontinued transmission lowers slave power consumption system interference.
摘要:
A remote monitoring of the daily dispensing of prescription drugs by at-home care, an elderly or clinical trial patient is proposed. The system consists of a dispensing unit equipped with weight sensing mechanism such as scale or balance which communicates with the monitoring application residing in the wireless terminal, such as cellular phone over the Personal Area Network (PAN) wireless interfaces such as Bluetooth. The monitoring application provides supervision over the medication dispensing process as well as communication with unauthorized medical supervisor using wireless Wide Area Network (WAN) connection to the Internet.
摘要:
Automatic provisioning of an access point base station or femtocell. The method may include the femtocell transmitting first information (e.g., location information, signal measurement information, capability information, etc.) to a service provider (e.g., over an IP network). The femtocell may receive second information from the service provider, where the second information includes one or more operational parameters. The operational parameters may include hand-off parameters, admission policy parameters, PN or scrambling codes, power parameters, and/or other parameters. The femtocell may operate according to the received parameters to provide access for a plurality of access terminals in a local area.
摘要:
In a method and apparatus suitable to convey timely information for facilitating accurate reception of transmitted data, a pilot signal is modulated to convey information. The information may facilitate efficient interpretation of an associated traffic signal. Modulation of a pilot signal frame may be limited to ensure early detection, and/or to minimize impairment of pilot functionality. In one embodiment, a Secondary Pilot Channel (SPICH) is transmitted at one of several selectable power levels to boost effectiveness of a phase reference, and is modulated to indicate the selected level. Such timely information enables prompt optimal combining of the SPICH with a primary Pilot Channel (PICH), and/or permits processing efficiencies for an associated traffic channel. Pilot signal frames may be transmitted at a predetermined level during a detection preamble portion of a frame to ensure accurate and early detection, and at a more optimal level thereafter.