yigid/openairinterface5g
1
0
Fork 0
mirror of https://gitlab.eurecom.fr/oai/openairinterface5g.git synced 2026-07-15 05:30:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

added MAC header handling for TX

Browse Source
This commit is contained in:
Raymond Knopp
2018-01-03 06:58:28 -08:00
parent 5b59872dff
commit 86a308bbd6
2 changed files with 96 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

82
openair2/LAYER2/MAC/defs.h
View File

@@ -237,31 +237,73 @@ typedef struct {
} __attribute__((__packed__))SCH_SUBHEADER_FIXED;
// Panos:
/*!\brief MAC subheader long with 24bit DST field */
typedef struct {
uint8_t V:4; //Version number: Possible values "0001", "0010", "0011" based on TS36.321 section 6.2.3.
uint32_t SRC:24; //Prose UE source ID. Size 24 bits.
uint32_t DST:24; //Prose UE destination ID. Size 16 or 24 bits.
uint8_t LCID:5;
uint8_t L:7; // Length field indicating the size of the corresponding SDU in byes. Not sure about the size of this field (7).
uint8_t F:1;
uint8_t E:1;
uint8_t R:1;
}__attribute__((__packed__))SLSCH_SUBHEADER_24_Bit_DST;
uint8_t R0:4;
uint8_t V:4;//Version number: Possible values "0001", "0010", "0011" based on TS36.321 section 6.2.3.
uint8_t SRC07; //Prose UE source ID. Size 24 bits.
uint8_t SRC815; //Prose UE source ID. Size 24 bits.
uint8_t SRC1623; //Prose UE source ID. Size 24 bits.
uint8_t DST07; //Prose UE destination ID. Size 24 bits.
uint8_t DST815; //Prose UE destination ID. Size 24 bits.
uint8_t DST1623; //Prose UE destination ID. Size 24 bits.
uint8_t LCID:5;
uint8_t E:1;
uint8_t R1:2;
uint8_t L:7; // Length field indicating the size of the corresponding SDU in bytes.
uint8_t F:1;
}__attribute__((__packed__))SLSCH_SUBHEADER_24_Bit_DST_SHORT;
/*!\brief MAC subheader long with 16bit DST field */
/*!\brief MAC subheader long with 24bit DST field */
typedef struct {
uint8_t V:4; //Version number: Possible values "0001", "0010", "0011" based on TS36.321 section 6.2.3.
uint32_t SRC:24; //Prose UE source ID. Size 24 bits.
uint32_t DST:16; //Prose UE destination ID. Size 16 or 24 bits.
uint8_t LCID:5;
uint8_t L:7; // Length field indicating the size of the corresponding SDU in byes. Not sure about the size of this field (7).
uint8_t F:1;
uint8_t E:1;
uint8_t R:1;
}__attribute__((__packed__))SLSCH_SUBHEADER_16_Bit_DST;
uint8_t R0:4;
uint8_t V:4;//Version number: Possible values "0001", "0010", "0011" based on TS36.321 section 6.2.3.
uint8_t SRC07; //Prose UE source ID. Size 24 bits.
uint8_t SRC815; //Prose UE source ID. Size 24 bits.
uint8_t SRC1623; //Prose UE source ID. Size 24 bits.
uint8_t DST07; //Prose UE destination ID. Size 24 bits.
uint8_t DST815; //Prose UE destination ID. Size 24 bits.
uint8_t DST1623; //Prose UE destination ID. Size 24 bits.
uint8_t LCID:5;
uint8_t E:1;
uint8_t R1:2;
uint8_t L_MSB:7; // Length field indicating the size of the corresponding SDU in bytes.
uint8_t F:1;
uint8_t L_LSB:8;
}__attribute__((__packed__))SLSCH_SUBHEADER_24_Bit_DST_LONG;
/*!\brief MAC subheader long with 24bit DST field */
typedef struct {
uint8_t R0:4;
uint8_t V:4;//Version number: Possible values "0001", "0010", "0011" based on TS36.321 section 6.2.3.
uint8_t SRC07; //Prose UE source ID. Size 24 bits.
uint8_t SRC815; //Prose UE source ID. Size 24 bits.
uint8_t DST07; //Prose UE destination ID. Size 16 bits.
uint8_t DST815; //Prose UE destination ID. Size 16 bits.
uint8_t LCID:5;
uint8_t E:1;
uint8_t R1:2;
uint8_t L:7; // Length field indicating the size of the corresponding SDU in bytes.
uint8_t F:1;
}__attribute__((__packed__))SLSCH_SUBHEADER_16_Bit_DST_SHORT;
/*!\brief MAC subheader long with 24bit DST field */
typedef struct {
uint8_t R0:4;
uint8_t V:4;//Version number: Possible values "0001", "0010", "0011" based on TS36.321 section 6.2.3.
uint8_t SRC07; //Prose UE source ID. Size 24 bits.
uint8_t SRC815; //Prose UE source ID. Size 24 bits.
uint8_t SRC1623; //Prose UE source ID. Size 24 bits.
uint8_t DST07; //Prose UE destination ID. Size 16 bits.
uint8_t DST815; //Prose UE destination ID. Size 16 bits.
uint8_t LCID:5;
uint8_t E:1;
uint8_t R1:2;
uint8_t L_MSB:7; // Length field indicating the size of the corresponding SDU in bytes.
uint8_t F:1;
uint8_t L_LSB:8;
}__attribute__((__packed__))SLSCH_SUBHEADER_16_Bit_DST_LONG;
/*!\brief mac control element: short buffer status report for a specific logical channel group ID*/
typedef struct {

35
openair2/LAYER2/MAC/ue_procedures.c
View File

@@ -2724,11 +2724,44 @@ SLSCH_t *ue_get_slsch(module_id_t module_idP,int CC_id,frame_t frameP,sub_frame_
MBMS_FLAG_NO,
3,
req,
(char*)ue->slsch_pdu.payload);
(char*)(ue->slsch_pdu.payload + sizeof(SLSCH_SUBHEADER_24_Bit_DST_LONG)));
// Notes: 1. hard-coded to 24-bit destination format for now
// 2. LCID hard-coded to 3
// 3. SRC/DST IDs with debug values
if (sdu_length > 0) {
LOG_I(MAC,"SFN.SF %d.%d : got %d bytes from Sidelink buffer (%d requested)\n",frameP,subframeP,sdu_length,req);
slsch->payload = (unsigned char*)ue->slsch_pdu.payload;
if (sdu_length < 128) {
slsch->payload++;
SLSCH_SUBHEADER_24_Bit_DST_SHORT *shorth= (SLSCH_SUBHEADER_24_Bit_DST_SHORT *)slsch->payload;
shorth->F=0;
shorth->L=sdu_length;
shorth->E=1;
shorth->LCID=3;
shorth->SRC07=0x12;
shorth->SRC815=0x34;
shorth->SRC1623=0x56;
shorth->DST07=0x78;
shorth->DST815=0x9A;
shorth->DST1623=0xBC;
shorth->V=0x1;
}
else {
SLSCH_SUBHEADER_24_Bit_DST_LONG *longh= (SLSCH_SUBHEADER_24_Bit_DST_LONG *)slsch->payload;
longh->F=1;
longh->L_LSB=sdu_length&0xff;
longh->L_MSB=(sdu_length>>8)&0x7f;
longh->E=1;
longh->LCID=3;
longh->SRC07=0x12;
longh->SRC815=0x34;
longh->SRC1623=0x56;
longh->DST07=0x78;
longh->DST815=0x9A;
longh->DST1623=0xBC;
longh->V=0x1;
}
slsch->rvidx = 0;
slsch->payload_length = TBS;
// fill in SLSCH configuration