Apparatus and method for configuring a data channel for symmetri

Details Apparatus and method for configuring a data channel for symmetri Apparatus and method for configuring a data channel for symmetri

1997-01-21

1999-10-05

Chan, Jason

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370468, H04J 1300

Patent

active

059635487

ABSTRACT:
A system for configuring signaling messages in a telecommunications system when setting up the data transmission rates on the forward and reverse links for data transmission on a variable rate symmetric/asymmetric data channel, so as to shorten the time and signal length required in the connection setup of such a system and to reduce the demand on processing resources and processing time in both the mobile and the base stations. An information record contained in a signaling message, such as a Service Request Message, a Service Response Message, a Service Connect, or a Status Response Message, that is used to to setup the forward and reverse links of the data channel, is provided with an ASYMMETRIC.sub.-- RATES bit field. In the case when both forward and reverse links are indicated in a service type message to use the same rate configuration, i.e., the same link setup parameters, the ASYMMETRIC.sub.-- RATES bit, i.e., the bit in the ASYMMETRIC.sub.-- RATES field in the signaling message, is set to one binary value, e.g., `0`, to indicate that the same rate configuration is used for both directions. Then only one rate configuration is encoded in the service type message and the message is considerably shortened saving time and reducing complexity. The ASYMMETRIC.sub.-- RATES bit field may be used to advantage in other message applications.

REFERENCES:
patent: 4692761 (1987-09-01), Robinton
patent: 5406557 (1995-04-01), Baudoin
patent: 5485520 (1996-01-01), Chaum et al.
patent: 5638399 (1997-06-01), Schuchman et al.

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