A distributed antenna system includes a multiple-input and multiple-output (MIMO) base station configured to output at least a first signal and a second signal. At least one master unit communicates with the MIMO base station. At least one remote unit communicates with the master unit. At least one antenna is coupled with the remote unit for receiving signals from the remote unit. A hybrid coupler is coupled between the remote unit and antenna and is configured to receive the first signal Ch1 and the second signal Ch2 from the remote unit on respective first and second ports and to provide an output signal on at least one output port. The output signal includes at least a portion of the first signal and at least a portion of the second signal. The antenna is coupled with the output port.

Distributed antenna system for MIMO signals

Access to femto cell service can be managed through access control list(s) (e.g., white list(s), or black list(s)). White list(s) includes a set of subscriber station(s) identifier numbers, codes, or tokens, and also can include additional fields for femto cell access management based on desired complexity. White list(s) can have associated white list profile(s) therewith to establish logic of femto coverage access based on the white list(s). Values of attribute fields that determine white list(s), black list(s), or white list profile(s) can be generated through various sources. An access list management component facilitates generation and maintenance of white list(s), black list(s), or white list profile(s). Values for identifier attribute field(s) available for inclusion in a white list are validated prior to inclusion therein. Various example aspects such as white list(s) management, maintenance and dissemination; automatic population or pre-configuration; and inclusion of wireless device(s) or subscriber(s) are also provided.

Access control lists and profiles to manage femto cell coverage

A femto cell service framework is utilized for purchase and service of femtocell equipment and customer support thereof. A point of sale (POS) platform enables purchase of femtocell equipment based on a set of eligibility criteria. POS also allows purchase of add-on services. Direct fulfillment and post-sale transactions such as returns and equipment replacement are also provided. An account management service enables femtocell equipment and service self-care or through customer representatives. Configuration of service account and monitoring of account status is provided. Customer care architecture also enables remote troubleshooting of purchased equipment. Remote troubleshooting includes diagnosis and related manipulation of purchased equipment.

Point of sales and customer support for femtocell service and equipment

Access management to femto cell service is provided through access control list(s) (e.g., white list(s), or black list(s)). White list(s) includes a set of subscriber station(s) identifier numbers, codes, or tokens, and also can include additional fields for femto cell access management based on desired complexity. White list(s) can have associated white list profile(s) therewith to establish logic of femto coverage access based on the white list(s). A mechanism for reciprocal addition of access field attributes in access control lists and white list profiles also is provided. The mechanism allows at least in part for a first subscriber to be added to a configured white list of a second subscriber, when the first subscriber configures a new white list, the second subscriber is reciprocally incorporated in the new white list. Such mechanism can be driven and facilitates generation of associations among groups of subscribers that share specific commonalities.

Reciprocal addition of attribute fields in access control lists and profiles for femto cell coverage management

Traffic and signaling are routed between a set of networked femto access points (APs) and location-based services are enabled. A femto AP in the set of femto APs is functionally linked to a routing platform that manages traffic and signaling, and is functionally connected to a controller component that relays at least part of data and control to a femto network platform. The femto network platform allows access to one or more external networks. Routing platform can exchange signaling with one or more femto APs to enable, at least in part, location-based services based at least in part on identifier(s) for a femto AP, access privileges, or time-of-flight measurements that assess propagation timing between a mobile device and a femto AP. Routing platform can supply timing configuration to enable predetermined spatial resolution of location estimates. Location estimates can be recorded and conveyed to a consumer layer.

Location-based services in a femtocell network

Embodiments of the invention relate to cellular wireless networks and are particularly suited to networks including different types of base stations. So-called femtocell base stations are typically deployed within a subscriber's premises and operate at low transmit power, providing a very limited area of wireless coverage. A femtocell is typically deployed within the area of wireless coverage of a conventional macrocell type of base station, and if handover from a macrocell is performed on the basis of the best signal to noise plus interference ratio, a connection is likely to be transferred to another macrocell rather than to a femtocell. However, in view of the low density of user equipments capable of transceiving with a femtocell, the femtocell could potentially provide a greater data rate to the user equipment terminal than is possible with a macrocell. A cellular wireless network according to an embodiment of the invention employs a method of handover algorithm that has dependence on both a measure of signal quality such as signal to noise plus interference ratio and on a measure of loading of the base station. The handover algorithm is thereby able to weight selection of a base station on the basis of data rate, and intelligently engineer handover to a femtocell.

Capacity optimisation in a cellular wireless network

Beamforming system and method which includes an inverse beamformer with first ports and second ports, a beamformer with beam ports and antenna ports, and antennas. The inverse beamformer may receive transmit signals provided to first ports, generates intermediate signals based on the transmit signals, and output the intermediate signals from the second ports. The beamformer's beam ports may couple to the second ports and the antenna ports, and may receive the intermediate signals at the beam ports, generate antenna signals based on the intermediate signals, and output the antenna signals at the antenna ports. The antennas may each receive an antenna signal from an antenna port, and transmit the antenna signal into space. The inverse beamformer may generate the intermediate signals in a manner that is mathematically inverse to the beamformer's generation of the antenna signals so that the antenna signals approximate the transmit signals up to respective phase shifts.

Inverse Beamformer for Inverting the Action of Existing Beamformer in Communication System

Embodiments of the invention relate to an antenna structure and are particularly suited to array antennas. An antenna according to an embodiment of the invention employs an enclosure having an aperture in one end; in preferred arrangements the aperture provides the enclosure with a substantially open end, over which the cover is placed. The cover has a slot therein, of a smaller size than the size of the aperture presented by the open ended enclosure and the slot in the cover then acts as the radiating slot.

Steven Hall

Papers

Capacity optimisation in a cellular wireless network

Inverse Beamformer for Inverting the Action of Existing Beamformer in Communication System

Antenna structures and arrays