摘要:
The present invention discloses a method and system for efficiently supporting data calls to WTRUs in systems that also support telephony. Various types of data is transmitted on a known schedule which is tightly synchronized to a predetermined time frame. The WTRUs synchronize their wake-up periods to search for data at times when data may or will actually be transmitted to them.
摘要:
Independent delivery services to wireless terminals capable of supporting multiple radio interfaces is achieved through the employment of a service management center (SMC). The SMC determines the set of services and parameters based on the capability and service profile of the wireless terminal.
摘要:
A primary station for a wireless communication system transmits and receives communications within a sectorized cell with at least one secondary station. The primary station transmits and receives signals within a beam; and directs the signal transmission and reception as a shaped beam. The shaped beam is directed at a plurality of predetermined directions; either continuously or discretely.
摘要:
A method and system for coordinating the use of beam forming between two communicating entities in a wireless communication system is disclosed. The two entities may communicate control information regarding their respective use of beam forming. A correction factor for at least one entity is provided wherein said entity may reduce or withhold its beam adjustment in order to correct any error measured in the alignment of its beam with respect to the beam of the other entity with which it is communicating. Adjustment parameters for adjusting the beams are selected based on conditions surrounding the communication.
摘要:
A wireless communication system for transmitting and receiving wireless communications using at least one beam is disclosed. The system comprises a plurality of WTRUs, at least one beam-forming antenna, and at least one radio network controller (RNC). The antenna is capable of beam-forming and beams emanating from the antenna may be adjusted in accordance with actual conditions in the wireless communication system. The antenna is further capable of dithering beams in the azimuth and/or elevation plane for breaking up null areas due to beam overlap.
摘要:
The present invention relates to a method and system using dynamic beam forming for wireless communication signals in a wireless network. Base stations and/or UEs are provided with antenna systems having a range of beam forming selections. Relative base station and UE locations are one type of criteria used to make beam forming decisions.
摘要:
A tracking apparatus includes a tracked object interrogator which produces a tracked object identifier output. The tracking apparatus also includes a location interrogator which produces an apparatus location output. The apparatus further includes an alarm which enunciates for a predetermined combination of the apparatus location output and the tracked object identifier output.
摘要:
A method and apparatus synchronize a first floating timing reference (207) of a first base station (116) with a timing reference of a second base station (116) of a communication system, without requiring an interruption of normal user traffic through the communication system. A receiver (208) of the first base station monitors (402) a user traffic transmission of the second base station, thereby generating a received signal, and a processing system (206) of the first base station derives (410) a received timing reference (308) from the received signal. The processing system independently adjusts (426, 428) the first floating timing reference according to the received timing reference, without requiring a timing adjustment instruction from a centralized synchronization controller.
摘要:
A device (124, 122) having application data to transmit collects (502) information concerning data transport capabilities affecting transmission timing of at least one wireless link available for transmitting the application data, and calculates (506), from the information, a maximum amount of data that can be completed through the at least one wireless link by a predetermined time. The device then determines (508), when attainable, from the application data and from a predetermined set of user-presentation formats possible for the application data, a user-presentation format that requires less than the maximum amount of data. The device then formats (514) the application data in accordance with the user-presentation format before transmitting the application data (530).
摘要:
In a messaging system having a plurality of simulcasting base transmitters (104), a plurality of pseudorandom sequence generators (216) are provided (402) for the plurality of base transmitters. The plurality of pseudorandom sequence generators are arranged (403) to ensure that they generate a plurality of pseudorandom sequences having sub-sequences that are different from one another during concurrent transmissions by the plurality of base transmitters. A cancellation-affecting parameter of the plurality of base transmitters is adjusted (404, 406, 408) in accordance with the plurality of pseudorandom sequences during the simulcast transmission from the plurality of base transmitters to limit intervals of carrier cancellation.