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公开(公告)号:AU2013243907B2
公开(公告)日:2017-07-20
申请号:AU2013243907
申请日:2013-03-14
Applicant: QUALCOMM INC
Inventor: BAIK EUGENE J , VERMANI SAMEER
IPC: H04L27/26
Abstract: Systems and methods of controlling characteristics of messages in sub-1 GHz networks (e.g., IEEE 802.11ah networks) are disclosed. One or more data structures indicating available frame formats and/or timing parameters may be stored at or accessible to transmitters and receivers. The data structures may be organized based on a frame format, a wireless network bandwidth, and/or the number of spatial streams in use at the wireless network. Information stored in the data structures may be used in generation and processing of messages communicated via the sub-1 GHz network.
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公开(公告)号:BRPI0914882A2
公开(公告)日:2016-09-06
申请号:BRPI0914882
申请日:2009-06-05
Applicant: QUALCOMM INC
Inventor: PIETSCH CHRISTIAN , SGRAJA CHRISTIAN , JOETTEN CHRISTOPH A , DUNI ETHAN R , BAIK EUGENE J , FRANK GEORG , WERNER MARC W , HUANG PENGJUN
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公开(公告)号:CA2724909A1
公开(公告)日:2009-12-10
申请号:CA2724909
申请日:2009-06-05
Applicant: QUALCOMM INC
Inventor: JOETTEN CHRISTOPH A , SGRAJA CHRISTIAN , FRANK GEORG , HUANG PENGJUN , PIETSCH CHRISTIAN , WERNER MARC W , DUNI ETHAN R , BAIK EUGENE J
Abstract: A system is provided for transmitting information through a speech codec (in-band) such as found in a wireless communication network. A modulator transforms the data into a spectrally noise-like signal based on the mapping of a shaped pulse to predetermined positions within a modulation frame, and the signal is efficiently encoded by a speech codec. A synchronization sequence provides modulation frame timing at the receiver and is detected based on analysis of a correlation peak pattern. A request/response protocol provides reliable transfer of data using message redundancy, retransmission, and/or robust modulation modes dependent on the communication channel conditions.
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公开(公告)号:IN4696CHN2014A
公开(公告)日:2015-09-18
申请号:IN4696CHN2014
申请日:2014-06-20
Applicant: QUALCOMM INC
Inventor: BAIK EUGENE J , VERMANI SAMEER , YANG LIN , SAMPATH HEMANTH
Abstract: Methods and devices for communicating in a communication system are described herein. One aspect of the subject matter described in the disclosure provides a method of communicating over one or more space time streams. The method includes transmitting a precoded portion of a first stream with a bandwidth of 1 MHz or less. The method further includes transmitting when there are at least two streams a precoded portion of a second stream with a cyclic shift delay relative to the first stream of 4 µs. The method further includes transmitting when there are at least three streams a precoded portion of a third stream with a cyclic shift delay relative to the first stream of 1 µs. The method further includes transmitting when there are at least four streams a precoded portion of a fourth stream with a cyclic shift delay relative to the first stream of 5 µs.
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公开(公告)号:PH12014502158B1
公开(公告)日:2014-12-10
申请号:PH12014502158
申请日:2014-09-26
Applicant: QUALCOMM INC
Inventor: BAIK EUGENE J , SAMEER VERMANI
IPC: H04L27/26
Abstract: Systems and methods of controlling characteristics of messages in sub-1 GHz networks (e.g., IEEE 802.11ah networks) are disclosed. One or more data structures indicating available frame formats and/or timing parameters may be stored at or accessible to transmitters and receivers. The data structures may be organized based on a frame format, a wireless network bandwidth, and/or the number of spatial streams in use at the wireless network. Information stored in the data structures may be used in generation and processing of messages communicated via the sub-1 GHz network.
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公开(公告)号:MX2010013328A
公开(公告)日:2011-01-21
申请号:MX2010013328
申请日:2009-06-05
Applicant: QUALCOMM INC
Inventor: FRANK GEORG , SGRAJA CHRISTIAN , WERNER MARC W , PIETSCH CHRISTIAN , JOETTEN CHRISTOPH A , HUANG PENGJUN , DUNI ETHAN R , BAIK EUGENE J
Abstract: Se proporciona un sistema para transmitir información a través de un códec de voz (dentro de banda) tal como el encontrado en una red de comunicación inalámbrica. Un modulador transforma los datos en una señal similar a ruido espectralmente con base en el mapeo de un pulso configurado a posiciones predeterminadas dentro de una trama de modulación, y la señal se codifica eficientemente mediante un códec de voz. Una secuencia de sincronización proporciona la temporización de la trama de modulación en el receptor y se detecta con base en el análisis de un patrón de picos de correlación. Un protocolo de solicitud/respuesta proporciona una - transferencia de datos confiable utilizando redundancia de mensajes, retransmisión, y/o modos de modulación robusta que dependen de las condiciones del canal de comunicaciones.
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公开(公告)号:ZA201407994B
公开(公告)日:2016-05-25
申请号:ZA201407994
申请日:2014-10-31
Applicant: QUALCOMM INC
Inventor: VERMANI SAMEER , BAIK EUGENE J
Abstract: A method includes selecting a frame format for use in transmission of a packet via a wireless network. The transmission is associated with a particular bandwidth. The selected frame format is a first frame format if the particular bandwidth is equal to a threshold bandwidth. The selected frame format is the first frame format or a second frame format if the particular bandwidth is greater than the threshold bandwidth. The second frame format includes a first portion and a second portion. The first portion includes a short training field (STF), a long training field, and a signal A field, and the second portion includes a data portion including a second STF, one or more signal B fields, and a data field. The method further includes generating the packet in accordance with the selected frame format and one or more timing parameters and sending the packet.
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公开(公告)号:PH12014502158A1
公开(公告)日:2014-12-10
申请号:PH12014502158
申请日:2014-09-26
Applicant: QUALCOMM INC
Inventor: BAIK EUGENE J , SAMEER VERMANI
IPC: H04L27/26
Abstract: Systems and methods of controlling characteristics of messages in sub-1 GHz networks (e.g., IEEE 802.11ah networks) are disclosed. One or more data structures indicating available frame formats and/or timing parameters may be stored at or accessible to transmitters and receivers. The data structures may be organized based on a frame format, a wireless network bandwidth, and/or the number of spatial streams in use at the wireless network. Information stored in the data structures may be used in generation and processing of messages communicated via the sub-1 GHz network.
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公开(公告)号:SG11201405637SA
公开(公告)日:2014-11-27
申请号:SG11201405637S
申请日:2013-03-14
Applicant: QUALCOMM INC
Inventor: BAIK EUGENE J , VERMANI SAMEER
Abstract: A method includes selecting a frame format for use in transmission of a packet via a wireless network. The transmission is associated with a particular bandwidth. The selected frame format is a first frame format if the particular bandwidth is equal to a threshold bandwidth. The selected frame format is the first frame format or a second frame format if the particular bandwidth is greater than the threshold bandwidth. The second frame format includes a first portion and a second portion. The first portion includes a short training field (STF), a long training field, and a signal A field, and the second portion includes a data portion including a second STF, one or more signal B fields, and a data field. The method further includes generating the packet in accordance with the selected frame format and one or more timing parameters and sending the packet.
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公开(公告)号:MY153815A
公开(公告)日:2015-03-31
申请号:MYPI20105293
申请日:2009-06-05
Applicant: QUALCOMM INC
Inventor: JOETTEN CHRISTOPH A , CHRISTIAN SGRAJA , GEORG FRANK , PENGJUN HUANG , CHRISTIAN PIETSCH , WERNER MARC W , DUNI ETHAN R , BAIK EUGENE J
IPC: H04J3/06
Abstract: A SYSTEM IS PROVIDED FOR TRANSMITTING INFORMATION THROUGH A SPEECH CODEC (IN BAND) SUCH AS FOUND IN A WIRELESS COMMUNICATION NETWORK. A MODULATOR TRANSFORMS THE DATA INTO A SPECTRALLY NOISE-LIKE SIGNAL BASED ON THE MAPPING OF A SHAPED PULSE TO PREDETERMINED POSITIONS WITHIN A MODULATION FRAME, AND THE SIGNAL IS EFFICIENTLY ENCODED BY A SPEECH CODEC. A SYNCHRONIZATION SEQUENCE PROVIDES MODULATION FRAME TIMING AT THE RECEIVER AND IS DETECTED BASED ON ANALYSIS OF A CORRELATION PEAK PATTERN. A REQUEST/RESPONSE PROTOCOL PROVIDES RELIABLE TRANSFER OF DATA USING MESSAGE REDUNDANCY, RETRANSMISSION, AND/OR ROBUST MODULATION MODES DEPENDENT ON THE COMMUNICATION CHANNEL CONDITIONS.
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