Wi-lan Inc.

William S Burchill

Gene Wesley Marsh

Srikanth Gummadi

Dennis Patrick Connors

Keerthi S Govind

Seema Madan

Brian David Petry

Michael Wengler

Brian P Petry

A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.

Efficient and consistent wireless downlink channel configuration

A method of encapsulating data and a single frequency network configured to perform the method are disclosed. A content stream of data packets is received, and the data packets in the content stream are formatted in accordance with a first protocol. Information identifying a container size established for the content stream is received. The data packets formatted in accordance with the first protocol are fragmented and packed to form data units formatted in accordance with a second protocol, and the data units are sized based on the container size. The data units formatted in accordance with the second protocol are encapsulated to form second protocol data packets. The second protocol data packets are provided to a transmitter that is synchronized to one or more transmitters in a single frequency network so that each transmitter in the single frequency network broadcasts a same signal that includes the second protocol data packets.

Convergence sublayer for use in a wireless broadcasting system

A wireless broadcast system that collects content for distribution over a wireless communication network. The content stream is encapsulated into a stream of transport packets for broadcast over the wireless communication link. The stream of transport packets are simultaneously broadcast as part of an identical signal from a plurality of synchronized transmitters in a single frequency network. A receiver acquires the broadcast signal and synchronizes to the signal. Once the receiver is synchronized to one of the transmitters in the single frequency network, the receiver can receive signals from any, or multiple, of the transmitters in the network without re-synchronizing.

Multidiversity handoff in a wireless broadcast system

A configuration for downlink signals in a wireless communication system, methods of configuring the downlink signals, apparatus for generating the downlink signals, and apparatus for receiving and processing the downlink signals are described herein. Downlink signals in a wireless communication system are reconfigured in series of frames, with each frame carrying a preamble that provides fast cell search and system acquisition. In particular, the preamble includes a primary preamble and a secondary preamble, where the primary preamble is common to all sectors in a base station and all base stations in a system and the secondary preamble is effectively unique to each base station, and may be further distinguished based on a sector basis. In addition, pilot signals are aligned with base stations to occur at the same time within a frame and the PN sequence values of the pilot signals are based on a cell identification an antenna identification, thereby enabling prediction of pilots transmitted by interferers or neighboring base stations from acquisition of secondary preambles. Also, the pilot bits are selectively assigned from a center of an operating band outward. Due to the pilot placement and pilot modulation, the scheme enables interference mitigation and channel estimation without knowing the frequency bandwidth, which is especially advantageous in broadcast channel systems.

A wireless broadcast system that collects content for distribution over a wireless communication network. At least one content stream is received and encapsulated into a stream of transport packets that are ruggedized for broadcast over the wireless communication link. The stream of transport packets are simultaneously broadcast as part of an identical signal from a plurality of synchronized transmitters in a single frequency network. The content can include multimedia data, such as audio/video data, movies, game, audio broadcasts, television network programs, or other types of multimedia content.

Wireless broadcasting system

A wireless broadcast system that collects content for distribution over a wireless communication network. Multiple content streams are received and interleaved into an aggregate content stream. The aggregate content stream is encapsulated into a stream of transport packets that are ruggedized for broadcast over the wireless communication link. One connection identification is associated with the entire aggregate content stream. The aggregate content stream is packetized into multiple service data units. An identical signal that includes the service data units and one connection identifier is broadcast by multiple synchronized transmitters in a single frequency network. The content can include multimedia data, such as audio/video data, movies, game, audio broadcasts, television network programs, or other types of multimedia content.

Connection identifier for wireless broadcast system

A wireless broadcast system includes receiving a data a stream by a convergence module. The convergence module partitions and encapsulates the transport packets into MAC protocol data units such that a size dimension of the encapsulated transport packets matches a size dimension of the MAC protocol data units. The MAC protocol data units are then provided to a transmitter that is synchronized to a plurality of transmitters in a single frequency network so that each transmitter in the network broadcast an identical signal that includes the MAC protocol data unit.

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San Diego, CA, United States of America

William S Burchill