I-SrsLTE
Enguqulweni entsha:
- ΠΠ΅ΡΠ΅ΡΠ°Π±ΠΎΡΠ°Π½Π° Π±ΠΈΠ±Π»ΠΈΠΎΡΠ΅ΠΊΠ° Ρ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠ΅ΠΉ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΡΠΎΠ²Π½Ρ ΡΡΠ΅ΠΊΠ° (
PHY ); - Π srsUE (LTE UE, User Equipment, ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ Π½Π° ΡΡΠΎΡΠΎΠ½Π΅ ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»Ρ, Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡΠ΅ Π΄Π»Ρ ΠΏΠΎΠ΄ΠΊΠ»ΡΡΠ΅Π½ΠΈΡ Π°Π±ΠΎΠ½Π΅Π½ΡΠ° ΠΊ ΡΠ΅ΡΠΈ LTE) Π΄ΠΎΠ±Π°Π²Π»Π΅Π½Π° ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ° ΡΠΎΡΠΌΠ°ΡΠ°
I-TDD (Time Division Duplex) Π² Π΄ΠΎΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ ΡΠ°Π½Π΅Π΅ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΠΌΠΎΠΌΡ ΠΈ Π±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½ΡΠ½Π½ΠΎΠΌΡ ΡΠΎΡΠΌΠ°ΡΡ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠ°ΡΡΠΎΡ Π² ΠΊΠ°Π½Π°Π»Π΅ FDD (Frequency Division Duplex); - Π srsUE Π΄ΠΎΠ±Π°Π²Π»Π΅Π½Π° ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ° ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ ΠΎΠ±ΡΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΡΠ°ΡΡΠΎΡΠ½ΡΡ
ΠΊΠ°Π½Π°Π»ΠΎΠ² (
Ukuhlanganiswa Kwenkampani yenethiwekhi ) Π΄Π»Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠΏΡΡΠΊΠ½ΠΎΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ Π΄ΠΎ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΠ΅Π»Ρ; - Π srsENB (ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡ Π±Π°Π·ΠΎΠ²ΠΎΠΉ ΡΡΠ°Π½ΡΠΈΠΈ) ΠΈ srsEPC (ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ ΠΎΠΏΠΎΡΠ½ΠΎΠΉ ΡΠ΅ΡΠΈ) Π΄ΠΎΠ±Π°Π²Π»Π΅Π½Π° ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ° ΡΠΈΡΠΎΠΊΠΎΠ²Π΅ΡΠ°ΡΠ΅Π»ΡΠ½ΡΡ
Paging-ΡΠΎΠΎΠ±ΡΠ΅Π½ΠΈΠΉ , ΠΎΠ±ΡΡΠ½ΠΎ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΡ Π΄Π»Ρ Π½Π°ΡΡΡΠΎΠΉΠΊΠΈ ΠΏΡΡΠΌΠΎΠ³ΠΎ ΠΊΠ°Π½Π°Π»Π° ΡΠ²ΡΠ·ΠΈ Π°Π±ΠΎΠ½Π΅Π½ΡΠ° Ρ Π±Π°Π·ΠΎΠ²ΠΎΠΉ ΡΡΠ°Π½ΡΠΈΠ΅ΠΉ; - Π srsENB Π΄ΠΎΠ±Π°Π²Π»Π΅Π½Π° ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ° ΡΠΈΡΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°ΡΠΈΠΊΠ° Π°Π±ΠΎΠ½Π΅Π½ΡΠ° (User-plane encryption). ΠΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ° ΡΠΈΠ³Π½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΠ°ΡΠΈΠΊΠ° (NAS-plane encryption) Π±ΡΠ»Π° ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π° ΡΠ°Π½Π΅Π΅;
- Π Π΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½ ΡΠΈΠΌΡΠ»ΡΡΠΎΡ ΠΊΠ°Π½Π°Π»ΠΎΠ² Π΄Π»Ρ 3GPP-ΠΊΠ°Π½Π°Π»ΠΎΠ² EPA, EVA ΠΈ ETU;
- ΠΠ° Π±Π°Π·Π΅ ZeroMQ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½ Π²ΠΈΡΡΡΠ°Π»ΡΠ½ΡΠΉ RF-Π΄ΡΠ°ΠΉΠ²Π΅Ρ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠΈΠΉ ΠΏΠ΅ΡΠ΅Π΄Π°ΡΡ ΡΠΈΠ³Π½Π°Π»ΠΎΠ² I/Q ΠΏΠΎΠ²Π΅ΡΡ IPC/ΡΠ΅ΡΠΈ.
Izici ezibalulekile:
- Uhlelo lungasebenza nanoma yimaphi ama-transceiver ahlelekayo asekelwa i-Ettus UHD (Universal Hardware Driver) namashayeli e-bladeRF futhi ekwazi ukusebenza kumkhawulokudonsa ongu-30.72 MHz. I-srsLTE ihlolwe nge-USRP B210, USRP B205mini, USRP X300, i-limeSDR kanye namabhodi e-bladeRF;
- Idekhoda ethuthukisiwe enesivinini esiphezulu kusetshenziswa imiyalelo ye-Intel SSE4.1/AVX2 ukuze kuzuzwe ukusebenza okungaphezu kuka-100Mbps kuhadiwe evamile. Ukuqaliswa okujwayelekile kwedikhoda ngolimi C, okuhlinzeka ngokusebenza ezingeni lama-25 Mbps;
- Ukuhambisana ngokugcwele nenguqulo 8 yezinga le-LTE nokusekelwa ngokwengxenye kwezinye izici ezivela kunguqulo 9;
- Ukuba khona kokucushwa komsebenzi kumodi yokuhlukaniswa kwamashaneli (FDD);
- Umkhawulokudonsa uhloliwe: 1.4, 3, 5, 10, 15 kanye no-20 MHz;
- Ukusekelwa kwezindlela zokudlulisela 1 (i-antenna eyodwa), i-2 (ukudlulisa ukuhlukahluka), i-3 (CCD) ne-4 (i-multiplexing yendawo evaliwe);
- Isilinganisi esisekelwa i-ZF kanye ne-MMSE ikhodi yefrikhwensi;
- ΠΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ° ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΡΠ΅ΡΠ²ΠΈΡΠΎΠ² Π΄Π»Ρ Π΄ΠΎΡΡΠ°Π²ΠΊΠΈ ΠΌΡΠ»ΡΡΠΈΠΌΠ΅Π΄ΠΈΠΉΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠ½ΡΠ΅Π½ΡΠ° Π² ΡΠ΅ΠΆΠΈΠΌΠ° broadcast ΠΈ multicast;
- Amandla okugcina amalogi anemininingwane ngokubhekisela kumazinga kanye nokulahlwa kokulungisa iphutha;
- Uhlelo lokuthwebula iphakethe lezinga le-MAC oluhambisana ne-Wireshark network analyzer;
- Ukutholakala kwamamethrikhi anedatha yokulandela umkhondo kumodi yomugqa womyalo;
- Amafayela okumisa anemininingwane;
- Ukuqaliswa kwe-LTE MAC, RLC, PDCP, RRC, NAS, S1AP kanye nezendlalelo ze-GW.
Source: opennet.ru