Abstract:
PROBLEM TO BE SOLVED: To provide a method for transmitting data on an orthogonal frequency-division multiplexing carrier, and also to provide a network base station and a user communication device. SOLUTION: An antenna array may transmit a signal decodable by a legacy user communication device designed for compatibility with a legacy set of transmission antennas. A processor 210 may encode a subframe of the signal with a legacy set of common reference symbols and a supplemental set of common reference symbols referring to the antenna array. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To demodulate data transmitted on an orthogonal frequency-division multiple access carrier. SOLUTION: A network base station 106 may have a common antenna set 110 to transmit on a subcarrier via a first effective channel able to be constructed based on at least one common reference symbol. The network base station 106 may have a dedicated antenna set 112 to transmit on a subcarrier via a second effective channel able to be estimated based on at least one dedicated reference symbol. A user equipment device 102 may demodulate a data transmission using the at least one common reference symbol and the at least one dedicated reference symbol. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
Power control bit generation for forward link power control in a spread spectrum communication system is accomplished through modification of a set point threshold. Modification of the set point reduces the number of squaring and division mathematical operations, thus more efficiently utilizing limited system resources in a mobile receiver used in forward link power control.
Abstract:
The present invention provides a method for generating preamble sequences in a code division multiple access system. The method includes forming an outer code in a mobile station. The mobile station forms an inner code. The mobile station multiplies the outer code to the inner code to generate the preamble sequence.
Abstract:
A method, a network base station, and a user communication device for transmitting data on an orthogonal frequency-division multiple access carrier are disclosed. A network base station 106 may have a common antenna set 110 to transmit on a subcarrier via a first effective channel able to be constructed based on at least one common reference symbol. The network base station 106 may have a dedicated antenna set 112 to transmit on a subcarrier via a second effective channel able to be estimated based on at least one dedicated reference symbol. The user equipment device 102 may demodulate a data transmission using the at least one common reference symbol and the at least one dedicated reference symbol.
Abstract:
Se divulgan un método, una estacion de base de red y un dispositivo de comunicaciones de usuario para transmitir datos en una portadora con multiplexion por division de frecuencia ortogonal. Un conjunto de antenas puede transmitir una senal decodificable por un dispositivo de comunicaciones de usuario heredado disenado para la compatibilidad con un conjunto heredado de antenas de transmision. Un procesador 210 puede codificar una subtrama de la senal con un conjunto heredado de símbolos de referencia comunes y un conjunto suplementario de símbolos de referencia comunes que se refiere al conjunto de antenas.
Abstract:
A method and apparatus of determining an encoding rate associated with a received signal (12), where the method including the steps of demodulating in a demodulator (80) to produce a series of metrics (22) representing energies of a series of data symbols carried by received signal (12); decoding in a decoder (20) series of metrics (22) to produce a set of total metrics (TM) (90) corresponding to a set of possible encoding rates; normalizing in a TM normalizer (28) set of TM (90) to produce a corresponding set of normalized TM (23); and determining the encoding rate in a rate determination (24) based on set of normalized TM (23). The normalizing step in TM normalizer (28) includes multiplying a set of effective finger counts (19) by a constant (410) to generate a corresponding set of numbers (420); and subtracting numbers (420) from associating TM (90) to produce normalized TM (23).
Abstract:
A method and apparatus of determining an encoding rate associated with a received signal (12), where the method including the steps of demodulating in a demodulator (80) to produce a series of metrics (22) representing energies of a series of data symbols carried by received signal (12); decoding in a decoder (20) series of metrics (22) to produce a set of total metrics (TM) (90) corresponding to a set of possible encoding rates; normalizing in a TM normalizer (28) set of TM (90) to produce a corresponding set of normalized TM (23); and determining the encoding rate in a rate determination (24) based on set of normalized TM (23). The normalizing step in TM normalizer (28) includes multiplying a set of effective finger counts (19) by a constant (410) to generate a corresponding set of numbers (420); and subtracting numbers (420) from associating TM (90) to produce normalized TM (23).
Abstract:
A communication resource that includes a communication channel is allocated in response to a received communication resource access request, wherein the access request is received while a message received via the communication channel is being demodulated. In response to receiving the request, a grant of access to the communication channel is generated and transmitted, which grant authorizes the source of the access request to use the communication channel.
Abstract:
Interleaving within a communication system occurs by finding a minimum value (m). A maximum-length sequence generator is initialized to 1 and a bit reverse sequence generator is initialized to 0. An n bit output is determined from the bit reverse sequence generator (101), and an m bit output is determined from the maximum length sequence generator (102). Finally, the n bit output is used as a most significant bit and m bit output is used as a least significant bit for an interleaver address (104).