244 results about "Wireless cellular networks" patented technology

The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a wireless network. A wireless cellular network for transmitting subscriber datastream(s) to corresponding ones among a plurality of subscriber units located within the cellular network is disclosed. The wireless cellular network includes base stations and a logic. The base stations each include spatially separate transmitters for transmitting, in response to control signals, selected substreams of each subscriber datastream on an assigned channel of a multiple access protocol. The logic communicates with each of the base stations. The logic assigns an available channel on which to transmit each subscriber datastream. The logic routes at least a substream of each datastream to at least a selected one of the base stations. The logic also generates control signals to configure the at least a selected one of the base stations to transmit the selected substreams to a corresponding one among the plurality of subscriber units on the assigned channel. A subscriber unit for use in a cellular system is also disclosed. The subscriber unit includes: spatially separate receivers, a spatial processor, and a combiner. The spatially separate receivers receive the assigned channel composite signals resulting from the spatially separate transmission of the subscriber downlink datastream(s). The spatial processor is configurable in response to a control signal transmitted by the base station to separate the composite signals into estimated substreams based on information obtained during the transmission of known data patterns from at least one of the base stations. The spatial processor signals the base stations when a change of a spatial transmission configuration is required. The combiner combines the estimated substreams into a corresponding subscriber datastream.

Transmitting a ACK/NACK response in a wireless cellular network by mapping the data value into a cyclic shifted version of a reference signal. A subframe is formed with a plurality of symbols with certain symbols designated as reference signal (RS) symbols. The receiver and transmitter both know when an ACK/NACK response is expected. If an ACK/NACK response is not expected, then an RS is inserted in the duration of symbols designated as RS symbols. If an ACK/NACK response is expected, then the ACK/NACK response is embedded in one or more of the symbols designated as RS symbols. The subframe is transmitted to a receiver, and the receiver can determine the ACK/NACK value in the RS symbol, if present, and also use the RS symbol for coherent demodulation of a CQI (channel quality indicator) or data.

A method and system for uplink-downlink transmission of data packets in a wireless cellular network, during idle state of User Equipment (UE) using connectionless transmission is disclosed. The method establishes S1 common bearer between a Radio Access Network (RAN) node and Serving Gateway (SGW) and S5 common bearer between the SGW and Packet Data Network Gateway (PGW). The method defines a modified Uu interface between the UE and the RAN node. The method appends data packets with UE Identifier (ID) and routing information as packet header information to independently route data packets through wireless cellular network in a self-sustainable manner using the established common bearers and the modified Uu interface. The method secures data packets by providing integrity and ciphering protection. The method eliminates cost of dedicated bearer set up and reduces signaling overhead on the Uu interface thereby improving network efficiency and battery life of the UE.

The present invention comprises systems for and methods of providing dedicated capacity in a wireless cellular network. In an embodiment, a system for providing dedicated capacity in a cellular network comprises: a first base station positioned at a first location and being communicatively coupled to a telephone network, the first base station having an outdoor cellular antenna for forming a local coverage area, a second base station positioned at the first location and being communicatively coupled to the telephone network; and an indoor cellular antenna for forming a coverage area at a second location. The second location is geographically remote from the first location and the indoor cellular antenna is communicatively coupled to the second base station such that mobile communications equipment located within the coverage area at the second location are communicatively coupled to the telephone network via the indoor cellular antenna and the second base station.

A method and system communicates cooperatively between base stations and mobile stations in a wireless cellular network. At least two mobile stations are detected in a handover region. A diversity set is established for each mobile station in the handover region. Each diversity set identifies at least two base stations that can communicate with the associated mobile station. The at least two base stations and the at least two mobile stations are combined into members of a cooperation set. A resource is allocated to selected members of the cooperative set. The selected members are notified of the allocated resource. Then, the selected base stations of the cooperation set communicate concurrently with the selected mobile stations using the same allocated resource.

The present Broadband Link System supplements the existing Air-To-Ground Radio Frequency communications link with an additional, separate high speed Broadband Ground-To-Air Data Channel to provide additional data communication capacity for aircraft. This Broadband Ground-To-Air Data Channel is typically a uni-directional (Ground-To-Air) link directed via a focused beam to selected aircraft which are operational in the coverage area of the Broadband Ground-To-Air Data Channel. The routing of the various data transmissions on both the Air-To-Ground Radio Frequency communications link and the Broadband Ground-To-Air Data Channel are managed in a unified manner to maximize the utilization of the two transmission facilities.

The Aircraft Mobile IP Address System provides wireless communication services to passengers who are located onboard an aircraft by storing data indicative of the individually identified wireless devices located onboard the aircraft. The System assigns a single IP address to each Point-to-Point Protocol link which connects the aircraft network to the ground-based communication network but also creates an IP subnet onboard the aircraft. The IP subnet utilizes a plurality of IP addresses for each Point-to-Point link thereby to enable each passenger wireless device to be uniquely identified with their own IP address. This is enabled since both Point-to-Point Protocol IPCP endpoints have pre-defined IP address pools and/or topology configured; each Point-to-Point Protocol endpoint can utilize a greater number of IP addresses than one per link. Such an approach does not change IPCP or other EVDO protocols/messaging but does allow this address to be directly visible to the ground-based communication network.

The Aircraft Air-To-Ground IP Tunnel System provides wireless communication services to passengers located onboard an aircraft by storing data indicative of the individually identified passenger wireless devices located onboard the aircraft. The Aircraft Air-To-Ground IP Tunnel System assigns a single IP address to each Point-to-Point Protocol link connecting the aircraft network to the ground-based communication network and creates an IP subnet onboard the aircraft. The IP subnet utilizes a plurality of IP addresses for each Point-to-Point link, enabling each passenger wireless device to be uniquely identified with their own IP address. This is enabled since both Point-to-Point Protocol IPCP endpoints have pre-defined IP address pools and/or topology configured, so each Point-to-Point Protocol endpoint can utilize a greater number of IP addresses than one per link. Such an approach does not change IPCP or other EVDO protocols/messaging but allows this address to be directly visible to the ground-based communication network.

The Customized Electronic Services Delivery System provides customized electronic services to passengers who are located onboard an aircraft by storing data indicative of a plurality of electronic services that are available to passengers who are located onboard an aircraft, as well as data indicative of preferences of passengers for the plurality of electronic services. Once a correspondence is made between the electronic services and an identified passenger, the Customized Electronic Services Delivery System advises the passenger of the availability of the customized services and establishes wireless communications between the passenger's electronic device and the selected electronic service. The electronic services include in-flight entertainment services as well as destination-based services which link the passenger's existing travel plans with offers for additional services that are available to the passenger at their nominal destination and their planned travel schedule.

The Content Delivery Handoff System enables a passenger's wireless device, operating in an airborne wireless cellular network, to receive selected content and to ensure continuity and/or completion of the content delivery when the aircraft reaches its destination before the entirety of the selected content is delivered to the passenger. This completion of content delivery can occur in a spatially and temporally disjunct manner where the delivery of the remainder of the selected content occurs at a terrestrial location or on a subsequent flight and at a later time.

An information handling system router integrates wireless local area networking components and wireless cellular wide area network components to route information between a wireless cellular wide area network and plural information handling systems interfaced with a wireless local area network supported by the wireless local area network components. The wireless cellular wide area network components may include a detachable wireless cellular transceiver to support wireless network interfaces when detached from the router, such as wireless cellular for voice telephone communication or a wireless card for single information handling system communication with the wireless cellular network. Alternatively, the wireless cellular wide area network components may integrate a transceiver that is authorized to communicate with the wireless cellular wide area network by a detachable authorization module, such as a SIM module of a wireless cellular.

The Customized Electronic Services Delivery System provides customized electronic services to passengers who are located onboard an aircraft by storing data indicative of a plurality of electronic services that are available to passengers who are located onboard an aircraft, as well as data indicative of preferences of passengers for the plurality of electronic services. Once a correspondence is made between the electronic services and an identified passenger, the Customized Electronic Services Delivery System advises the passenger of the availability of the customized services and establishes wireless communications between the passenger's electronic device and the selected electronic service. The electronic services include in-flight entertainment services as well as destination-based services which link the passenger's existing travel plans with offers for additional services that are available to the passenger at their nominal destination and their planned travel schedule.

A method and system for synchronization in a femtocell wireless telecommunications network, the method including transmitting a preamble and pilot tones from a Base Transceiver Station (a “sync-BTS”) having a module for GPS synchronization and performing, in the femtocells, preamble synchronization with the sync-BTS for initial acquisition; and decoding the pilot tones to identify and correct timing and frequency offset in the femtocells for synchronization tracking.

The Aircraft IP Subnet System provides wireless communication services to passengers located onboard an aircraft by storing data indicative of individually identified wireless devices that are located onboard the aircraft. The Aircraft IP Subnet System assigns a single IP address to each Point-to-Point Protocol link connecting the aircraft network to the ground-based communication network and creates an IP subnet onboard the aircraft. The IP subnet utilizes a plurality of IP addresses for each Point-to-Point link, thereby to enable each passenger wireless device to be uniquely identified with their own IP address. This is enabled since both Point-to-Point Protocol IPCP endpoints have pre-defined IP address pools and/or topology configured, so each Point-to-Point Protocol endpoint can utilize a greater number of IP addresses than one per link. Such an approach does not change IPCP or other EVDO protocols/messaging but allows this address to be directly visible to the ground-based communication network.