Multichamber testbed for WiFiNRU coexistence testing July 17
Multi-chamber testbed for Wi-Fi/NR-U coexistence testing July 17, 2019 Leigh Chinitz, octo. Scope
Both Wi-Fi and NR-U likely to coexist in the 6 GHz band www. octoscope. com
Both Wi-Fi and NR-U likely to coexist in the 6 GHz band www. octoscope. com
4 Various coexistence scenarios will need to be explored • Simple ones • …and much more complex ones 1 root 2 www. octoscope. com
Even simple scenarios will have many possible variations www. octoscope. com 5
Coexistence testing must be defined in the context of a testbed • Many options are available Conducted testing Large anechoic chamber testing Radiated open air testing Multi-chamber testing • The testbed must: • less e ir w n o k r o od w For some go mmend o c e r ly g n o tr we s ican r e coexistence, m A “ , 7. 2 3 NSI C 6 reading the A ation of lu a v E r fo e d dar National Stan xistence” e o C s s le e ir W Be able to create the test scenarios of interest (EXTENSIBLE) well as s a ” Be able to produce repeatable results (REPEATABLE) e c n te is x a fines “coe It de rovides p d n a , s m r t te other relevan ding the The testbed should: n ta s r e d n u r orks tw framework fo e n s s le e ir at two w Be accessible to anyone who wants to use it (ACCESSIBLE) probability th can coexist. www. octoscope. com
WFA testbed for coexistence testing of LTE-U and Wi -Fi A full mesh, multi-chamber testbed See https: //www. wi-fi. org/file/coexistence-test-plan www. octoscope. com
octo. Scope testbed for Wi-Fi Alliance coexistence testing Co-existence testbed, as www. octoscope. com 8
9 Multi-chamber co-existence testbed • Makes possible the • Full control over “distances” allows for all combinations of that simple topology to be tested, easily • Tests can easily Shielded Enclosure PA_6 UE AP PA_4 g. NB PA_1 PA_2 “simple” configurations with one AP/STA and one g. NB/UE pair PA_5 Programmable Attenuator STA PA_3 www. octoscope. com
10 Even the complex scenarios can be supported 1 2 3 -node mesh and STA root g. NB and UE www. octoscope. com
Multi-chamber testbed a solid choice for coexistence testing Ext ens l ibl b i s e c Repeatab Ac e le www. octoscope. com 11
12 Boston area headquarters 305 Foster Street Littleton, MA 01460 USA Tel: +1. 978. 222. 3114 California office 780 Montague Expressway, Building 1 San José, CA 95131 USA Tel: +1. 978. 339. 9431 info@octo. Scope. com www. octoscope. com
13 Backup Testbed Examples
Personal testbed Traditional testbed AP testbed devices DUT sniffer STA testbed devices www. octoscope. com
Generic certification testbed Wireless Sniffer Sigma UCC Sigma AP Control Agent WFA EMT DUT … UCC = universal CAPI control CAPI = common application programming interface RF combiner Ethernet Switch Sigma PC End Point RADIU S Server Ethernet Switch Ethernet filters Control Ethernet Test Ethernet Switch www. octoscope. com
Example testbed – ax TTG • Testbed APs are cabled in the top chamber • Testbed STAs are cabled in the bottom chamber AP testbed devices • DUT and sniffer are OTA coupled in the middle chamber DUT sniffer • High gain antennas (log periodic) offer full dynamic range when coupled from on chamber to another via a programmable attenuator STA testbed devices www. octoscope. com
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