RATE DETECTION FOR VARIABLE RATE CDMA COMMUNICATION SYSTEM
Variable rate data transmissions are accommodated having BRI transmitted in the same frame as the data itself. When Walsh code spreading is employed, the despreading process can be split into two separate despreading operations, with buffering between the two operations. Buffering is made of the int...
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Main Authors | , |
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Format | Patent |
Language | English French |
Published |
21.01.1999
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Abstract | Variable rate data transmissions are accommodated having BRI transmitted in the same frame as the data itself. When Walsh code spreading is employed, the despreading process can be split into two separate despreading operations, with buffering between the two operations. Buffering is made of the intermediate symbols between the despreading stages, and can be made at the maximum user data rate instead of the much higher chip rate. In this way, the size of the buffer in the receiver can be significantly reduced.
L'invention concerne des transmissions de données à débit binaire variable effectuées par communication d'informations de débit binaire (BRI) dans la même trame que les données elles-mêmes. En cas d'étalement du code de Walsh, le procédé de désétalement peut être divisé en deux opérations distinctes avec mise en tampon entre ces deux opérations. Les symboles intermédiaires sont mis en tampon entre les opérations de désétalement et cette mise en tampon peut être effectuée au débit binaire maximum des transmissions de données utilisateur au lieu du débit binaire de base qui est nettement supérieur. Ainsi, la taille du tampon du récepteur peut être considérablement réduite. |
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AbstractList | Variable rate data transmissions are accommodated having BRI transmitted in the same frame as the data itself. When Walsh code spreading is employed, the despreading process can be split into two separate despreading operations, with buffering between the two operations. Buffering is made of the intermediate symbols between the despreading stages, and can be made at the maximum user data rate instead of the much higher chip rate. In this way, the size of the buffer in the receiver can be significantly reduced.
L'invention concerne des transmissions de données à débit binaire variable effectuées par communication d'informations de débit binaire (BRI) dans la même trame que les données elles-mêmes. En cas d'étalement du code de Walsh, le procédé de désétalement peut être divisé en deux opérations distinctes avec mise en tampon entre ces deux opérations. Les symboles intermédiaires sont mis en tampon entre les opérations de désétalement et cette mise en tampon peut être effectuée au débit binaire maximum des transmissions de données utilisateur au lieu du débit binaire de base qui est nettement supérieur. Ainsi, la taille du tampon du récepteur peut être considérablement réduite. |
Author | OVESJOE, FREDRIK DAHLMAN, ERIK |
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DocumentTitleAlternate | DETECTION DE DEBIT BINAIRE D'UN SYSTEME DE COMMUNICATION AMCR A DEBIT BINAIRE VARIABLE |
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Snippet | Variable rate data transmissions are accommodated having BRI transmitted in the same frame as the data itself. When Walsh code spreading is employed, the... |
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SubjectTerms | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION TRANSMISSION |
Title | RATE DETECTION FOR VARIABLE RATE CDMA COMMUNICATION SYSTEM |
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