Acknowledgment packet
Various example embodiments are disclosed. According to an example embodiment, a receiving station in a wireless network may receive a plurality of Medium Access Control Packet Data Units (MPDUs) from a transmitting station. Each of the plurality of MPDUs may include a sequence number. The receiving station may also determine which of the plurality of MPDUs were successfully or not successfully received from the transmitting station. The receiving station may also transmit, to the transmitting station, at least one automatic repeat request (ARQ) feedback information element (IE). The at least one ARQ feedback IE may include a number of acknowledgment maps field indicating a number of acknowledgment maps included in the ARQ feedback IE and the indicated number of acknowledgment maps. Each of the acknowledgment maps may include a sequence format field indicating a number of block sequence fields and the indicated number of block sequence fields. Each of the block sequence fields may indicate a sequence length of successive packets which were successfully or not successfully received based on the determining which of the plurality of received MPDUs were successfully received from the transmitting station.
1. A method comprising:
receiving, by a receiving station in a wireless network, a plurality of received Medium Access Control Packet Data Units (MPDUs) from a transmitting station, each of the plurality of received MPDUs including a sequence number;
determining which of the plurality of received MPDUs were successfully or not successfully received from the transmitting station; and
transmitting, to the transmitting station, at least one automatic repeat request (ARQ) feedback information element (IE), the at least one ARQ feedback IE including:
a number of acknowledgment maps field indicating a number of acknowledgment maps included in the ARQ feedback IE; and
the indicated number of acknowledgment maps, each of the acknowledgment maps including:
a sequence format field indicating a number of block sequence fields; and
the indicated number of block sequence fields, each of the block sequence fields indicating a sequence length of successive packets which were successfully or not successfully received based on the determining which of the plurality of received MPDUs were successfully or not successfully received from the transmitting station.
2. The method of claim 1 , wherein the sequence format field includes a one-bit sequence format field indicating the number of block sequence fields.
3. The method of claim 1 , wherein the sequence format field includes a two-bit sequence format field indicating the number of block sequence fields.
4. The method of claim 1 , wherein the sequence format field includes a three-bit sequence format field indicating the number of block sequence fields.
5. The method of claim 1 , wherein a first block sequence field in the number of block sequence fields indicates a sequence length of successive packets which were not successfully received, and block sequence fields following the first block sequence field alternately indicate successfully and not successfully received packets based on the determining which of the plurality of received MPDUs were successfully or not successfully received from the transmitting station.
6. The method of claim 1 , wherein the acknowledgment maps do not include a sequence acknowledgment map field.
7. The method of claim 1 , wherein the at least one ARQ feedback IE further includes a connection identifier (CID) field identifying a connection between the receiving station and the transmitting station.
8. The method of claim 1 , wherein the at least one ARQ feedback IE further includes a last field indicating whether the ARQ feedback IE is a last ARQ feedback IE in the at least one transmitted ARQ feedback IE.
9. The method of claim 1 , wherein the at least one ARQ feedback IE further includes an acknowledgment type field identifying an acknowledgment type of the ARQ feedback IE.
10. The method of claim 1 , wherein the at least one ARQ feedback IE further includes an acknowledgment type field identifying the ARQ feedback IE as a cumulative acknowledgment with enhanced block sequence acknowledgment entry.
11. The method of claim 1 , wherein the at least one ARQ feedback IE further includes a block sequence number indicating the sequence number of a last successfully received MPDU before a first unsuccessfully received MPDU.
12. The method of claim 1 , wherein the at least one ARQ feedback IE further includes a block sequence number indicating the sequence number of a last MPDU and all the MPDUs before the last MPDU in a first sequence of successfully received packets.
13. The method of claim 1 , wherein the ARQ feedback IE is included a transmitted MPDU.
14. The method of claim 1 , wherein the transmitting the at least one ARQ feedback IE includes transmitting the at least one ARQ feedback IE at a carrier frequency of about 2.5 Gigahertz.
15. The method of claim 1 , wherein the transmitting the at least one ARQ feedback IE includes transmitting the at least one ARQ feedback IE at a carrier frequency of about 3.5 Gigahertz.
16. The method of claim 1 , wherein the transmitting the at least one ARQ feedback IE includes transmitting the at least one ARQ feedback IE using orthogonal frequency division multiplexing (OFDM).
17. The method of claim 1 , wherein the indicated number of block sequences indicated by the sequence format field is based on the determining which of the plurality of received MPDUs were successfully received from the transmitting station.
18. A method comprising:
receiving, by a receiving station in a wireless network, a plurality of received Medium Access Control Packet Data Units (MPDUs) from a transmitting station, each of the plurality of MPDUs including a sequence number;
determining which of the plurality of received MPDUs were successfully or not successfully received from the transmitting station; and
transmitting, to the transmitting station, at least one automatic repeat request (ARQ) feedback information element (IE), the at least one ARQ feedback IE including:
an acknowledgment type field indicating a type of the ARQ feedback IE as either a cumulative acknowledgment entry or a cumulative acknowledgment with enhanced block sequence acknowledgment entry;
a number of acknowledgment maps field indicating the type of the ARQ feedback IE as the cumulative acknowledgment with enhanced block sequence acknowledgment entry, and further indicating a number of acknowledgment maps included in the ARQ feedback IE; and
the indicated number of acknowledgment maps, each of the acknowledgment maps including:
a two-bit sequence format field indicating a number of block sequence fields; and
the indicated number of block sequence fields, each of the block sequence fields indicating a sequence length of successive packets which were successfully or not successfully received based on the determining which of the plurality of received MPDUs were successfully or not successfully received from the transmitting station.
19. The method of claim 18 , wherein a first block sequence field from the number of block sequence fields indicates a sequence length of successive packets which were not successfully received, and following block sequence fields alternately indicate successfully and not successfully received based on the determining which of the plurality of received MPDUs were successfully or not successfully received from the transmitting station.
20. The method of claim 18 , wherein the acknowledgment maps do not include a sequence acknowledgment map field.