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QoS handling: add Dynamic5QI QoS support/validation, split QoS characteristics by 5QI type

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Model non-dynamic vs dynamic 5QI characteristics explicitly and propagate the
new layout through NGAP decode and RRC bearer/QoS handling.

Changes:
- Define `non_dynamic_5qi_t`/`dynamic_5qi_t`, PER/PDB bounds, and embed a
  `qos_characteristics` union in `pdusession_level_qos_parameter_t`
- Populate the new QoS structures in `fill_qos()`, including optional
  allocations for Dynamic 5QI `fiveQI` and NonDynamic `priorityLevelQos`
- Map QoS params to F1AP with `nr_rrc_get_f1_qos_flow_param()` and add range
  validation for dynamic priority/PDB/PER and non-dynamic 5QI
- Populate E1 QoS characteristics from the new layout and update QoS modify
  handling to manage optional pointer fields (`openair2/RRC/NR/rrc_gNB_NGAP.c`)
- Derive a numeric 5QI via `get_qos_fiveqi()`, handle missing-5QI dynamic flows
  conservatively, and extend dedicated-DRB decisions to fall back to dynamic
  characteristics
- Add a 5QI range assert in F1AP QoS encoding and extend bearer tests with a
  Dynamic 5QI flow

Signed-off-by: Guido Casati <guido.casati@openairinterface.org>
This commit is contained in:
Guido Casati
2025-11-07 23:29:15 +01:00
parent 4ad557a0e3
commit ef971849bd
8 changed files with 298 additions and 57 deletions
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49
common/5g_platform_types.h
View File

@@ -90,11 +90,56 @@ typedef uint8_t qos_priority_level_t;
#define MIN_QOS_PRIORITY_LEVEL 1 // highest priority
#define MAX_QOS_PRIORITY_LEVEL 127 // lowest priority
/* Packet Delay Budget (PDB) - 3GPP TS 23.501 §5.7.3.4
* Upper bound for packet delay between UE and UPF N6 termination point (0..1023 ms).
* Used for scheduling and link layer configuration (e.g. HARQ target operating points).
* For Delay-critical GBR flows, packets delayed more than PDB are counted as lost. */
#define MIN_PACKET_DELAY_BUDGET 0
#define MAX_PACKET_DELAY_BUDGET 1023
/* Packet Error Rate (PER) - 3GPP TS 23.501 §5.7.3.5
* Upper bound for rate of non-congestion related packet losses (0..9 for scalar/exponent).
* Used for link layer protocol configuration (e.g. RLC, HARQ).
* PER = Scalar * 10^(-Exponent) */
#define MIN_PACKET_ERROR_RATE_SCALAR 0
#define MAX_PACKET_ERROR_RATE_SCALAR 9
#define MIN_PACKET_ERROR_RATE_EXPONENT 0
#define MAX_PACKET_ERROR_RATE_EXPONENT 9
typedef struct {
// Packet Error Rate Scalar (0..9)
uint8_t scalar;
// Packet Error Rate Exponent (0..9)
uint8_t exponent;
} qos_per_t;
/** QoS Characteristics for a standardized or
* pre-configured 5QI for downlink and uplink*/
typedef struct {
uint16_t fiveQI;
qos_priority_level_t *qos_priority;
} non_dynamic_5qi_t;
/** QoS Characteristics for a Non-standardised or
* not pre-configured 5QI for downlink and uplink. */
typedef struct {
uint16_t *fiveQI;
qos_priority_level_t qos_priority;
// Packet Delay Budget (0..1023 ms)
int packet_delay_budget;
// Packet Error Rate (0..9 for scalar/exponent)
qos_per_t per;
} dynamic_5qi_t;
typedef struct pdusession_level_qos_parameter_s {
uint8_t qfi;
uint64_t fiveQI;
qos_priority_level_t qos_priority;
// QoS Characteristics
fiveQI_t fiveQI_type;
union {
non_dynamic_5qi_t non_dynamic;
dynamic_5qi_t dynamic;
} qos_characteristics;
// NG-RAN Allocation and Retention Priority
qos_arp_t arp;
} pdusession_level_qos_parameter_t;