Transporting user data over A-Bis and A-interfaces within a mobile telecommunications network
First Claim
1. A communication system for communicating user data between a mobile station and a telecommunications network, comprising:
- a first telecommunications node for communicating user data with said telecommunications network;
a second telecommunications node for communicating said user data with said mobile station;
a rate adaptor;
a first communications link connecting said first telecommunications node with said rate adaptor;
a second communications link connecting said second telecommunications node with said rate adaptor;
a first frame including first synchronization data is transportable over said second communications link for establishing and synchronizing communications between said second telecommunications node and said rate adaptor; and
a second frame transportable over said second communication link for transporting said user data between said second telecommunications node and said rate adaptor, said second frame has a greater user payload than capable in the first frame because a portion of the first synchronization data in the first frame is replaced with additional user data, wherein said user data includes the addition user data.
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0 Petitions
Accused Products
Abstract
A synchronization frame is first formatted and transmitted in accordance with the Global System for Mobile (GSM) 08.60 specification. After an initial synchronization procedure is accomplished between a transcoder/rate adaptor unit (TRAU) and a particular base transceiver station (BTS) serving a mobile station, a modified GSM 08.60 frame is thereafter used to transport greater user data payload across the established communications link. The modified frame replaces the synchronization bits included in the GSM 08.60 formatted data frame with user data to increase data payload from the conventional 13.5 Kbit/s to a more desirable 14.4 Kbit/s without altering the standardized 16 Kbit/s transmission rate supported by the IWF and the BTS.
30 Citations
26 Claims
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1. A communication system for communicating user data between a mobile station and a telecommunications network, comprising:
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a first telecommunications node for communicating user data with said telecommunications network; a second telecommunications node for communicating said user data with said mobile station; a rate adaptor; a first communications link connecting said first telecommunications node with said rate adaptor; a second communications link connecting said second telecommunications node with said rate adaptor; a first frame including first synchronization data is transportable over said second communications link for establishing and synchronizing communications between said second telecommunications node and said rate adaptor; and a second frame transportable over said second communication link for transporting said user data between said second telecommunications node and said rate adaptor, said second frame has a greater user payload than capable in the first frame because a portion of the first synchronization data in the first frame is replaced with additional user data, wherein said user data includes the addition user data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 17)
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11. A method for communicating user data between a first telecommunications node and a second telecommunications node within a telecommunications network, said method comprising the steps of:
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transmitting a first frame including synchronization data, said first frame formatted in accordance with a first communication protocol from said first telecommunications node to said second telecommunications node, said transmission of said first frame further includes establishing and synchronizing a communication link between said first telecommunications node and said second telecommunications node; and transmitting a second frame formatted in accordance with a second communications protocol for transporting said user data over said communication link between said first telecommunications node and said second telecommunications node, said second frame has a greater user payload than capable in the first frame because a portion of the synchronization data in the first frame is replaced with additional data, wherein said user data includes the additional user data. - View Dependent Claims (14, 15, 16, 26)
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18. A communications system for transporting user data between a first telecommunications node and a second telecommunications node within a public land mobile network, said first telecommunications node and said second telecommunications node connected using a communication link, comprising:
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a first data frame transportable over said communication link for establishing and synchronizing a communications channel between said first telecommunications node and said second telecommunications node, said first data frame formatted in accordance with a first frame protocol and includes synchronization data; and a second data frame transportable over said communication link for transporting said user data between said first telecommunications node and said second telecommunications node, said second data frame formatted in accordance with a second frame protocol having greater user payload than capable in the first frame protocol because a portion of the synchronization data in the first data frame is replaced with additional data, wherein said user data includes the additional user data. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification