摘要:
Disclosed herein are systems, methods, and computer-readable storage media for enabling improved cancellation of self-interference in full-duplex communications, or the transmitting and receiving of communications in a single frequency band without requiring time, frequency, or code divisions. The system estimates the signal strength and phase of a self-interference signal, generates a cancellation signal based on this estimate, then uses the cancellation signal to suppress the self-interference before sampling received analog signal. After applying the cancellation signal, the system samples and digitizes the remaining analog signal. The digitized signal is then subjected to additional digital cancellation, allowing for extraction of the desired signal.
摘要:
A system and method for full-duplex communications provided by modifying the Media Access Control sub-layer of communication node protocols. The modification allows communication nodes to communicate with one another in full-duplex, where each node transmits and receives data simultaneously with other nodes in a single frequency. A timing of the simultaneous data transmissions, acknowledgments, and short-interframe-space waiting periods can be determined based on network-allocation-vector data transmitted in association with request-to-send or clear-to-send signals.
摘要:
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for a modified MAC protocol which can facilitate communications with both full-duplex and half-duplex devices. A system configured according to the disclosed method can enable communications between an Access Point (AP) and a client in either full duplex or half duplex. The system can similarly enable peer-to-peer communications in both full duplex and half duplex communication modes.
摘要:
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for a modified MAC protocol which can facilitate communications with both full-duplex and half-duplex devices. A system configured according to the disclosed method can enable communications between an Access Point (AP) and a client in either full duplex or half duplex. The system can similarly enable peer-to-peer communications in both full duplex and half duplex communication modes.
摘要:
A system and method for full-duplex communications provided by modifying the Media Access Control sub-layer of communication node protocols. The modification allows communication nodes to communicate with one another in full-duplex, where each node transmits and receives data simultaneously with other nodes in a single frequency. A timing of the simultaneous data transmissions, acknowledgments, and short-interframe-space waiting periods can be determined based on network-allocation-vector data transmitted in association with request-to-send or clear-to-send signals.
摘要:
Methods and devices for providing presence based messaging are disclosed. For example, a method receives a message including a message content, an identifier of a recipient and a presence parameter. The presence parameter may comprise a speed parameter pertaining to a speed of a device associated with the recipient or a mood parameter pertaining to a mood of the recipient. The method then stores the message and delivers the message to the device associated with the recipient when the presence parameter is satisfied.
摘要:
Methods and devices for providing presence based messaging are disclosed. For example, a method receives a message including a message content, an identifier of a recipient and a presence parameter. The presence parameter may comprise a speed parameter pertaining to a speed of a device associated with the recipient or a mood parameter pertaining to a mood of the recipient. The method then stores the message and delivers the message to the device associated with the recipient when the presence parameter is satisfied.
摘要:
Raw presence data from a plurality of presence data sources is collected and processed into unified presence data. Unified presence data over a period of time before a first time is stored in a historical presence data archive. A probability of a presence variable having a specific value is generated based on unified presence data collected and processed at a second time on or after the first time, the historical presence data archive, and user profile data. Presence information is generated based on the probability and the user profile data. Presence data sources include both Session Initiation Protocol based and non Session Initiation Protocol based presence data sources. In an embodiment, non Session Initiation Protocol based unified presence data is transformed into Session Initiation Protocol based unified presence data.
摘要:
A method, computer readable medium and apparatus for automatically updating social network profiles are disclosed. For example, the method receives one or more inputs from a subscriber, processes the one or more inputs in accordance with a policy defined by the subscriber to produce an update about the subscriber and publishes the update about the subscriber on one or more social network profiles associated with the subscriber.
摘要:
Disclosed are method and apparatus for processing of highway toll payments by a mobile telecommunications service provider. A mobile telecommunications device communicates with a mobile telecommunications service provider. The mobile telecommunications service provider receives a request to calculate a route to a destination. The mobile telecommunications service provider determines the location of the mobile telecommunications device from a global navigation satellite system or from a mobile telecommunications network and calculates a route. The mobile telecommunications service provider then identifies toll booths along the calculated route. The mobile telecommunications service provider pre-pays the tolls. The mobile telecommunications service provider sends turn-by-turn instructions to the mobile telecommunications device and tracks the location of the mobile telecommunications device and records the date and time at which the mobile telecommunications device passes through a toll booth.