A signaling channel that punctures traffic channels is used to send signaling, e.g., acknowledgments (ACKs). To send signaling, resources for the signaling channel are determined, e.g., based on a frequency hopping pattern. Signaling is spread with a spreading code (e.g., a Walsh code) to generate spread signaling, which is mapped to the resources for the signaling channel. Each resource may be partitioned into multiple clusters. A signaling message may be mapped to different clusters to achieve diversity. Traffic data may also be mapped to other resources for a traffic channel assigned for use. Traffic data mapped to the other resources for the signaling channel is punctured. The mapped signaling and traffic data are further processed (e.g., for OFDM or SC-FDMA) and transmitted.

Puncturing signaling channel for a wireless communication system

A shared signaling channel can be used in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system to provide signaling, acknowledgement, and power control messages to access terminals within the system. The shared signaling channel may comprise reserved logical resources that can be assigned to subcarriers, OFDM symbols, or combinations thereof.

Resource allocation for shared signaling channels

Accordingly, a method and apparatus are provided wherein an apparatus comprises plurality of electronic devices, each having a logic, wherein the apparatus is configured for receiving a preamble comprising frame structure parameters; extracting said frame structure parameters from said preamble; and determining a frame structure by demodulating said frame structure parameters.

A method and apparatus for bootstraping information in a communication system

A shared signaling channel can be used in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system to provide signaling, acknowledgement, and power control messages to access terminals within the system. The shared signaling channel can be assigned to a predetermined number of sub-carriers within any frame. The assignment of a predetermined number of sub-carriers to the shared signaling channel establishes a fixed bandwidth overhead for the channel. The actual sub-carriers assigned to the channel can be varied periodically, and can vary according to a predetermined frequency hopping schedule. The amount of signal power allocated to the signaling channel can vary on a per symbol basis depending on the power requirements of the communication link. The shared signaling channel can direct each message carried on the channel to one or more access terminals. Unicast messages allow the channel power to be controlled per the needs of individual communication links.

Shared signaling channel

The present invention refers to a multilayer heat shrinkable film characterized by a combination of desirable properties, such as high shrinkage, good optical properties, excellent sealability and stack sealability. The invention further is directed to a method of producing said film. The invention is further directed to the use of said film or bags and pouches made therefrom for packaging goods as for example food products. The invention also refers to tubes made with the film.

Stack sealable heat shrinkable film

The invention provides a foam film excellent in heat insulating properties, a multilayer foam film, heat -shrinkable foam films comprising them, a heat-shrinkable multilayer foam film, a heat-shrinkable label, and containers covered with the label. A styrenic foam film characterized by having at least one foam layer which contains a resin composition consisting of 20 to 100 parts by mass of the following component (a) and 0 to 80 parts by mass of the component (b) and has a film thickness of 30 to 200μm and a specific gravity of 0.3 to 0.9: (a) a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene at a ratio of 50/50 to 90/10, and (b) at least one vinyl aromatic hydrocarbon polymer selected from among the following components (i) to (v): (i) a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, (ii) a vinyl aromatic hydrocarbon polymer, (iii) a copolymer of a vinyl aromatic hydrocarbon and (meth)acrylic acid, (iv) a copolymer of a vinyl aromatic hydrocarbon and a (meth)acrylic ester, and (v) a rubber-modified styrenic polymer.

Yuji Shima

Papers

Heat-shrinkable foam films