LteHarqBufferRx Class Reference¶
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Simu5G
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#include <LteHarqBufferRx.h>
Public Member Functions | |
| virtual void | insertPdu (Codeword cw, inet::Packet *pkt) |
| virtual std::list< inet::Packet * > | extractCorrectPdus () |
| virtual unsigned int | purgeCorruptedPdus () |
| virtual UnitList | firstAvailable () |
| virtual bool | isHarqBufferActive () const |
Protected Member Functions | |
| virtual void | sendFeedback () |
| virtual void | macUe_emit (simsignal_t signal, double val) |
| virtual void | initMacUe () |
Protected Attributes | |
| opp_component_ptr< Binder > | binder_ |
| binder module reference | |
| opp_component_ptr< LteMacBase > | macOwner_ |
| MAC module reference. | |
| unsigned int | numHarqProcesses_ |
| number of contained H-ARQ processes | |
| MacNodeId | srcId_ |
| ID of the source node for which this buffer has been created. | |
| std::vector< LteHarqProcessRx * > | processes_ |
| processes vector | |
| bool | isMulticast_ |
| flag for multicast flows | |
Detailed Description
H-ARQ RX buffer: messages coming from PHY are stored in the H-ARQ RX buffer. When a new PDU is inserted, it is in EVALUATING state, meaning that the hardware is checking its correctness. A feedback is sent after the PDU has been evaluated (HARQ_FB_EVALUATION_INTERVAL), and in case of ACK, the PDU moves to CORRECT state; otherwise, it is dropped from the process. The operations of checking if a PDU is ready for feedback and if it is in the correct state are done in the extractCorrectPdu method, which must be called at every TTI (it must be part of the MAC main loop).
Member Function Documentation
◆ insertPdu()
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virtual |
Insertion of a new PDU coming from PHY layer into RX H-ARQ buffer.
- Parameters
-
PDU to be inserted
Reimplemented in LteHarqBufferRxD2D.
◆ extractCorrectPdus()
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virtual |
Sends feedback for all processes which are older than HARQ_FB_EVALUATION_INTERVAL, then extracts the PDU in correct state (if any)
- Returns
- uncorrupted PDUs or empty list if none
Reimplemented in LteHarqBufferRxD2D.
◆ purgeCorruptedPdus()
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virtual |
Purges PDUs in corrupted state (if any)
- Returns
- number of purged corrupted PDUs or zero if none
References processes_.
◆ firstAvailable()
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virtual |
Returns a pair with H-ARQ process ID and a list of its empty {RXHARQ_PDU_EMPTY} units to be used for reception of new H-ARQ sub-bursts.
- Returns
- a list of acid and their units to be used for reception
References isMulticast_.
◆ isHarqBufferActive()
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virtual |
Check if the buffer is active
- Returns
- true if the RxHarqPduStatus of all units of all processes is not RXHARQ_PDU_EMPTY
◆ sendFeedback()
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protectedvirtual |
Checks for all processes if the PDU has been evaluated and sends feedback if affirmative.
Reimplemented in LteHarqBufferRxD2D.
◆ macUe_emit()
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inlineprotectedvirtual |
Only emit signals from macUe_ if the node still exists. It is possible that the source node (e.g., a UE) left the simulation, but the packets from the node still reside in the simulation.
◆ initMacUe()
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inlineprotectedvirtual |
Member Data Documentation
◆ binder_
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protected |
binder module reference
Referenced by initMacUe().
◆ macOwner_
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protected |
MAC module reference.
Referenced by initMacUe().
◆ numHarqProcesses_
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protected |
number of contained H-ARQ processes
◆ srcId_
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protected |
ID of the source node for which this buffer has been created.
Referenced by initMacUe().
◆ processes_
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protected |
processes vector
Referenced by purgeCorruptedPdus().
◆ isMulticast_
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protected |
flag for multicast flows
Referenced by firstAvailable().
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