Method and System for Enabling HARQ Operations on Channels between Stations in Wireless Communication Networks
First Claim
1. A method for enabling of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network, comprising the steps of:
- increasing adaptively a number of parallel HARQ channels to improve a performance of the HARQ operations;
using one connection identifier to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels; and
using sequence numbers to avoid out-of-order delivery when MPDUs are transmitted over the parallel HARQ channels.
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Abstract
A method and system enables and improves performance of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network. There, the number of parallel HARQ channels is increased adaptively, and one connection identifier is used to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels. A sequence number is used to avoid out-of-order MPDU delivery when MPDUs are transmitted over parallel HARQ channels. The MPDUs can be concatenated or encapsulated. The maximum number of the parallel HARQ channels can be increased to 256, and can be negotiated when a station enters or re-enters the network.
43 Citations
24 Claims
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1. A method for enabling of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network, comprising the steps of:
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increasing adaptively a number of parallel HARQ channels to improve a performance of the HARQ operations; using one connection identifier to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels; and using sequence numbers to avoid out-of-order delivery when MPDUs are transmitted over the parallel HARQ channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for enabling hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network, comprising:
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means for increasing adaptively a number of parallel HARQ channels to improve a performance of the HARQ operations; means for using one connection identifier to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over the parallel HARQ channels; and means for using sequence number to avoid out-of-order MPDU delivery when MPDUs are transmitted over the number of parallel HARQ channels.
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Specification