System and method for automatic packet field supression in broadband wireless communications systems
A method for packet field suppression in broadband wireless communication is provided. Values for packet suppression can be learned and subsequently used for suppression. The learning can involve determining a new packet field suppression rule and a packet field suppression index. Packets can be suppressed based on the learned values.
1. A method for packet field suppression in broadband wireless communication, the method comprising:
determining, by a first station, a packet to transmit to a second station, the packet comprising a plurality of fields;
determining, by first station, whether one or more of the plurality of fields of the packet can be suppressed based on one or more rules, wherein the one or more rules include one or more expected values for one or more of the plurality of fields;
if one or more of the plurality of fields can be suppressed, then suppressing, by the first station, the one or more of the plurality of fields that can be suppressed and transmitting the packet with the suppressed fields to a second station; and
if one or more of the plurality of fields cannot be suppressed, then:
i) sending, by the first station, the packet without suppressing any of the plurality of fields to the second station,
ii) determining, by the first station, a new packet field suppression rule based only on one or more unexpected values for the one or more plurality of fields,
iii) assigning, by the first station, a packet field suppression index value to the new packet field suppression rule,
iv) transmitting, by the first station, the new packet field suppression rule and the packet field suppression index to the second station, and
v) upon receipt of an acknowledgment by the second station, storing, by the first station, the new packet field suppression rule and the packet field suppression index.
2. The method of claim 1 wherein determining whether any of the plurality of fields can be suppressed further comprises comparing the one or more rules to MAC service data unit parameters.
3. The method of claim 1 wherein storing the new packet field suppression rule further comprises storing the new packet field suppression rule in a liner array.
4. The method of claim 1 wherein storing the new packet field suppression rule further comprises storing the new packet field suppression rule by creating a table for each unique field type of the new packet field suppression rule.
5. The method of claim 1 wherein transmitting the new packet field suppression rule and the packet field suppression index to the second station further comprises populating a dynamic service flow change message.
6. The method of claim 1 wherein the first station is a base station and the second station is a remote station.
7. The method of claim 1 wherein the first station is a remote station and the second station is a base station.
8. The method of claim 1 wherein the field to be suppressed are packet header fields.
9. The method of claim 1 wherein the packet is in accordance with IEEE 802.16 standards.