Continuation control for wireless packet data

Details Continuation control for wireless packet data Continuation control for wireless packet data

1998-08-04

2001-06-05

Ton, Dang (Department: 2732)

Multiplex communications

Communication over free space

Reexamination Certificate

active

06243365

ABSTRACT:

FIELD OF THE INVENTION
The field of this invention pertains to telecommunications, including a telecommunications system that includes continuation control for the transmission of packet data.
DESCRIPTION OF THE TECHNOLOGY
Generally, in known wireless communication systems that support the transmission of packet data, allocation of physical, i.e., over-the-air, connection resources is performed individually for each packet of data that is sent, in order to provide fair and efficient utilization of the over-the-air resource between multiple users. Subsequent release, or termination or de-allocation, of the physical connection resources is performed after each packet of data has been received, or its transmission is otherwise terminated. In known wireless communication systems that support the transmission of packet data, the logical link for the transmission of packet data may also be allocated, and subsequently terminated, or suspended, for each packet data transmission. When supporting packet data communications, however, the overhead on the system of allocating, and releasing, resources for every transmitted packet data can be significant.
For example, referring to
FIG. 1
, which depicts a general processing flow
100
in known wireless systems, logical link and physical connection resources are established
101
before the initiation of the transfer of packet data from a transmitting entity to a receiving entity. The protocol for implementing the establishment of the transmission resources, not shown, can be time and resource consuming.
Once both the logical link and the physical connection resources are established for the actual transmission of data between the wireless system and an end entity, one or more frames, or data segment(s), of packet data are transmitted
102
.
The transmitting entity, i.e., either the wireless system or the end entity that is transmitting the packet data, checks
103
to see if it has successfully transmitted the last frame of the packet data, and, thus, the entire packet data. If not
104
, the transmitting entity continues to transmit
102
frame(s) of packet data to the receiving entity, i.e., either the wireless system or the end entity that is receiving the packet data.
If, however, the transmitting entity has successfully transmitted the last frame of the packet data
105
to the receiving entity, it thereafter releases the physical connection resources
106
that were acquired for transmitting the packet data. The transmitting entity may also at this time be required to release the logical link that it acquired for the transmission of the packet data.
Thereafter, either the receiving entity or the transmitting entity, or both, ascertains
107
whether it has more data to transmit to the other. If no
108
, that is the end of the current processing scenario
109
between the transmitting and receiving entities. If, however, either the original receiving entity or the original transmitting entity has more data to transmit to the other
110
, then the entire processing flow
100
is repeated, beginning with a new establishment of resources
101
.
SUMMARY OF THE INVENTION
The inventions provide methods and mechanisms for transmission continuation control between a first entity, e.g., a telecommunications system, and a second entity, e.g., an end user, or entity, of the telecommunications system.
In a presently preferred embodiment, a physical transmission link, e.g., over-the-air resources, are established for the transmission of a user message, i.e., a message between a system and an end user of the system, for example, e.g., packet data, between a telecommunications system and an end user. After the physical transmission link is established, either the telecommunications system transmits a user message to the end user, or, alternatively, the end user transmits a user message to the telecommunications system.
Upon the completion of the transmission of a first user message between the telecommunications system and the end user, a continuation protocol may be executed between them, for the further transmission of a user message between them. In a presently preferred embodiment, execution of the continuation protocol eliminates the need to terminate, or otherwise de-allocate, or release, the established physical transmission link between the end user and the telecommunications system after the transmission of the first user message. Thus, in a presently preferred embodiment, execution of the continuation protocol further eliminates the need to establish, or re-establish, a physical transmission link between the end user and the telecommunications system prior to the transmission of subsequent user message(s) between them.
After executing the continuation protocol, a second user message is transmitted between the end user and the telecommunications system. The continuation protocol may continue to be executed, with additional user messages transmitted between the end user and the telecommunications system. Sometime after the user message transmissions between the end user and the telecommunications system are transmitted, the physical transmission link between them is terminated.


REFERENCES:
patent: 5191583 (1993-03-01), Pearson et al.
patent: 5483532 (1996-01-01), Eriksson
patent: 5535426 (1996-07-01), Leigh et al.
patent: 5802465 (1998-09-01), Hamalainen et al.

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