Systems and methods for use with orthogonal frequency division multiplexing

摘要

Systems and methods are provided for enabling H-ARQ communication between a base station and one or more wireless terminals. Methods for enabling incremental redundancy (IR) based H-ARQ, Chase based H-ARQ and Space-Time Code combining (STC) based H-ARQ between devices for down-link and up-link direction transmissions are provided in the form of an information element (IE) for use with a Normal MAP convention as currently accepted in the draft version standard of IEEE 802.16. In addition, embodiments of the invention provide a resource management scheme to protect a network from abuse of resources from a wireless terminal not registered with the network. Components of the down-link and up-link mapping components of a data frame transmitted from the base station to one or more wireless terminals included messages that are readable by all wireless terminals as well as some messages that are encrypted and only readable by wireless terminals that are authenticated as being registered with the network.

主权项

1. A method, comprising:
at a first electronic device operating a hybrid automatic repeat request (H-ARQ) enabled Orthogonal Frequency Division Multiplexing (OFDM) connection with a second electronic device:
determining one or more H-ARQ transmissions destined for the second electronic device, each of the H-ARQ transmissions having a corresponding identification;transmitting information of where the H-ARQ transmissions are located in a data frame for each transmission resource allocation using the identifications;transmitting a first H-ARQ transmission having a first identification to the second electronic device over a first predetermined channel as indicated in the information, the first H-ARQ transmission including a first transmission indication indicating a status of the first HARQ transmission;receiving one of an acknowledgement (ACK) and a negative acknowledgement (NACK) from the second electronic device for the first H-ARQ transmission, the ACK indicating that the second electronic device has successfully received the first H-ARQ transmission, the NACK indicating that the second electronic device has failed in receiving the first H-ARQ transmission; andre-transmitting, when a NACK is received, the first H-ARQ transmission having a second identification to the second electronic device over the first predetermined channel, wherein the first and second identification are associated with a manner in which the first H-ARQ transmission is to be used at the second device for receiving and decoding data on the first H-ARQ transmission.