Patent application number | Description | Published |
20090279471 | LOCAL AND WIDE-AREA TRANSMISSIONS IN A WIRELESS BROADCAST NETWORK - To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast. | 11-12-2009 |
20110019632 | METHOD AND APPARATUS FOR RANKING OF MEDIA SERVICES AND PROGRAM PACKAGES - A method for improved presentation of media information for wireless communication is described herein. Media services and program packages are ranked and ranking information is delivered to a mobile device along with the media information. The ranking information is then used by the mobile device to arrange the media services in a ranked order. The ranking information can also be used to assign a default service that is displayed whenever the mobile device is activated or whenever a selection is made to view media content. The ranking information can also be used to arrange program packages in a ranked order for subscription purposes. | 01-27-2011 |
20110075638 | TIME SLICING TECHNIQUES FOR VARIABLE DATA RATE ENCODING - The disclosure is directed to a multi-channel encoder. The multi-channel encoder is configured to generate an encoded data stream. The multi-channel encoder includes a plurality of channel encoders, and a processor configured to allocate time slots in the encoded data stream to each of the channel encoders to vary the rate of data provided by each of the channel encoders into the encoded data stream. | 03-31-2011 |
20110299587 | METHODS AND SYSTEMS FOR RESIZING MULTIMEDIA CONTENT BASED ON QUALITY AND RATE INFORMATION - In general, this disclosure describes techniques for exchanging information between a plurality of encoder modules and a multiplex module to combine segments of data from the encoder modules with an improved overall quality. In particular, the encoder modules associate their respective segments of data with quality and rate information and send at least the quality and rate information associated with the segments of data to the multiplex module. The multiplex module analyzes the quality and rate information to determine whether the segments of data that encoder modules desire to include in the current superframe fit within the available bandwidth of a transmission channel. If the multiplex module determines the plurality of segments of data do not fit within the available bandwidth, the multiplex module selects one or more of the segments to be resized based on the quality and rate information received from the encoder modules. | 12-08-2011 |
20120294360 | CHANNEL SWITCH FRAME - Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions. | 11-22-2012 |
20130021204 | APPARATUS AND METHOD FOR WIRELESS NETWORK ENHANCEMENT VIA VARIABLE DOWN TILT - Apparatus and methods for controlling antenna down tilt in a mixed coordinated/non-coordinated network include receiving one or more input signals defining a waveform to be transmitted, for determining a tilt angle state to be applied to the antenna based on the one or more input signals, and for transmitting a tilt control signal if the determined tilt angle state differs from a current tilt angle state associated with the antenna. | 01-24-2013 |
20130163458 | METHODS AND APPARATUS FOR POSITION LOCATION IN A WIRELESS NETWORK - Methods and apparatus for position location in a wireless network. In an aspect, a method is provided that includes determining whether a symbol to be transmitted is an active symbol, wherein the symbol comprises a plurality of subcarriers, and encoding identification information on a first portion of subcarriers if it is determined that the symbol is the active symbol. The method also includes encoding idle information on a second portion of subcarriers if it is determined that the symbol in not the active symbol. In an aspect, an apparatus includes detector logic configured to decode a plurality of symbols to determine identification information that identifies a plurality of transmitters, and to determine a plurality of channel estimate associated with the plurality of transmitters. The apparatus also includes position determination logic configured to calculate a device position based on the plurality of transmitters and the plurality of channel estimates. | 06-27-2013 |
20130308707 | METHODS AND DEVICE FOR DATA ALIGNMENT WITH TIME DOMAIN BOUNDARY - Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes obtaining content information of multimedia data, and encoding the multimedia data so as to align a data boundary with a frame boundary in a time domain, wherein said encoding is based on the content information. In another aspect, a method of processing multimedia data includes obtaining a content classification of the multimedia data, and encoding blocks in the multimedia data as intra-coded blocks or inter-coded blocks based on the content classification to increase the error resilience of the encoded multimedia data. Apparatus that can process multimedia data described in these methods are also disclosed. | 11-21-2013 |
20140016491 | METHODS AND APPARATUS FOR REPORTING SIGNAL QUALITY IN OVERLAPPING MULTIMEDIA BROADCAST SINGLE FREQUENCY NETWORK (MBSFN) AREAS - Certain aspects of the present disclosure relate to methods and apparatus for reporting signal quality in overlapping Multimedia Broadcast Single Frequency Networks (MBSFN) areas. A UE may determine a signal quality estimate for each of two or more overlapping MBSFN areas based on Signal to Noise Ratio (SNR) information and Modulation and Coding Scheme (MCS) information for the MBSFN area. The UE may then determine a combined signal quality based on the signal quality estimates of the MBSFN areas. | 01-16-2014 |
20140036755 | MBMS SUPPORT IN HETEROGENEOUS NETWORK AND IN-VENUE - A method, an apparatus, and a computer program product for wireless communication enable user equipment operating in a current cell that provides a multimedia broadcast/multicast service to distinguish between neighboring cells that have different operational characteristics. The presence of a neighboring cell is identified while the user equipment is operating in a first cell and it is determined whether the neighboring cell provides services different from the services provided in the current cell, based on information maintained by the user equipment. The user equipment may move to the neighboring cell to obtain better or different service. | 02-06-2014 |
20140044094 | Multiplexing and Transmission of Multiple Data Streams in a Wireless Multi-Carrier Communication System - Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams. | 02-13-2014 |
20140153471 | ALLOWING UNICAST SUBFRAME STRUCTURE FOR EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a multicast/broadcast single frequency network (MBSFN) subframe configured based on a unicast subframe structure, and transmits MBSFN signals for eMBMS using the MBSFN subframe. In a one configuration, the MBSFN subframe structure for eMBMS transmissions uses the same CP length, the same common reference signal (CRS) pattern and same subframe structure used for unicast, along with the same antenna ports used for unicast transmission. In another configuration, the MBSFN subframe structure for eMBMS transmissions uses the same CP length and same subframe structure used for unicast, but potentially different CRS patterns and different antenna ports from those used for unicast transmissions. In another configuration, the MBSFN subframe structure for eMBMS transmission uses the same CP length and same subframe structure used for unicast, but with a UE-RS pattern. | 06-05-2014 |