Efficient data transmission by data aggregation
View Patent ↗To efficiently transmit data on a wireless network, small packets that might otherwise be sent individually are aggregated into a “superframe”. This superframe can then be transmitted as a single, larger packet. To form this superframe, a plurality of tagged data packets can be aggregated into a packed aggregation block (PAB). Encapsulation data, e.g. protocol information, can be appended to the PAB. Wireless transmission information can bound the PAB and encapsulation data. Forming the superframe can be performed using an efficient combination of hardware and software. In one embodiment, aggregation of the tagged data packets can be performed by hardware without regard to the underlying protocol(s). Software can then provide protocol-handling support.
1. A method of preparing a superframe for wireless network transmission, the method comprising:
identifying and tagging a plurality of data packets for the wireless network transmission;
grouping tagged data packets (TPDs) to form a packet aggregation block (PAB);
instantiating a media access control (MAC) header;
appending software-defined encapsulation information that includes protocol information regarding a transport mechanism;
appending the packet aggregation block (PAB);
appending an integrity check value (ICV);
appending a frame check sequence (FCS), wherein the MAC header, the software-defined encapsulation information, the PAB, the ICV, and the FCS form the superframe; and
identifying the superframe as complete for wireless network transmission.
2. The method of claim 1 , wherein identifying and tagging the plurality of data packets comprises, for each TDP, the steps of:
appending a length value of a data portion of the TDP;
appending data fragmentation and type indication data of the TDP;
appending error code data of the TDP;
appending timestamp data of the TDP;
appending raw packet data of the TDP; and
appending word alignment padding of the TDP.
3. A method of generating a superframe for wireless network transmission, the method comprising:
aggregating a plurality of tagged data packets into a packet aggregation block (PAB);
appending transport type encapsulation data for the PAB, the transport type encapsulation data identifying a protocol for the PAB;
bounding the PAB and the transport type encapsulation data with wireless transmission information, thereby creating the superframe; and
submitting the superframe for the wireless network transmission.
4. The method of claim 3 , wherein bounding the PAB and the transport type encapsulation data with wireless transmission information includes:
instantiating a media access control (MAC) header;
appending an integrity check value (ICV); and
appending a frame check sequence (FCS).
5. The method of claim 3 , wherein each tagged data packet includes corresponding transport type encapsulation data at a predetermined level and the transport type encapsulation data for the PAR is at another predetermined level.
6. The method of claim 3 further including forming the plurality of tagged data packets (TDPS), wherein, for each TDP, the forming includes:
appending a length value of a data portion of the TDP;
appending data fragmentation and type indication data of the TDP;
appending error code data of the TDP;
appending timestamp data of the TDP; and
appending raw packet data of the TDP.
7. The method of claim 6 , wherein, for each TDP, forming further includes appending word alignment padding of the TDP.