Method and system for processing data retransmission of hybrid automatic retransmission request
A hybrid automatic retransmission and data retransmission technology, applied in the field of communication, can solve the problems of increasing system overhead and achieve the effect of reducing air interface message overhead
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Embodiment 1
[0053] figure 2 is a schematic diagram of HARQ retransmission resource allocation under PA allocation according to Embodiment 1 of the present invention, as shown in figure 2 As shown, the BS sends PA allocation information to the MS at time T1, and the PA Region includes 9 sub-bursts of the MS, wherein sub-bursts 2, 5, 6, and 8 are non-HARQ modes. After receiving the PA allocation information, the HARQ-enabled MSs (1, 3, 4, 7, 9) save the corresponding HARQ resource allocation table (as shown in Table 1). At time T1, the BS and MS utilize this PA allocation to transmit traffic data. It should be noted that the filled part in Table 1 is a paraphrase, rather than saving parameters.
[0054] Table 1 HARQ resource allocation table
[0055]
[0056] The BS obtains HARQ feedback information at time T2, which is the feedback information after transmitting HARQ data using PA allocation for time T1. exist figure 2 Among them, sub-burst1, 3, and 9 are negative feedback, indi...
Embodiment 2
[0065] image 3 is a schematic diagram of HARQ retransmission resource allocation after PA allocation update according to Embodiment 2 of the present invention, as shown in image 3 As shown, BS sends new PA allocation information to MS at time T3, relative to figure 2 At time T1 in , the sub-burst4 resource in the PA Region is released, and the resource block of sub-burst10 is added at the same time. Then the MS updates the HARQ resource allocation table to Table 3, as shown in Table 3, including sub-burst1, 3, 7, 9, and 10. At time T3, the BS and MS transmit traffic data using the updated PA allocation. It should be noted that the filling part in Table 3 is a paraphrase, not a saving parameter.
[0066] Table 3 HARQ resource allocation table
[0067]
[0068] The BS gets HARQ feedback information at time T4, which is the feedback information after transmitting HARQ data with the updated PA assignment for time T3. image 3 Among them, sub-burst1, 7, and 10 are negati...
Embodiment 3
[0073] In this embodiment, the process in step S102 and step S104 is basically the same as the implementation process of the above embodiment, so the same implementation process will not be described in detail, and only the differences from the above embodiment will be described. Specifically, for uplink resource allocation, after the MS sends uplink data, the BS may send corresponding HARQ feedback, and use the corresponding bitmap HARQ ACK BITMAP to indicate. In this case, the PA retransmission resource bitmap in the embodiment of the present invention can borrow the HARQ feedback bitmap (HARQ ACKBITMAP). Therefore, the PA retransmission resource may not be indicated in the retransmission resource allocation information message sent to the MS. bitmap. In this embodiment, the HARQ retransmission resource allocation information sent by the BS to the MS (that is, the above-mentioned HARQ retransmission mapping message) includes the location of the HARQ retransmission resource r...
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