O-RAN compatible deployment architecture
A multi-radio access technology (multi-RAT) remote radio head (RRH) is disclosed, comprising: a first functional radio unit (RU) providing RF and Low PHY functions for a first RAT; a second functional radio unit (RU) providing RF functions for a second RAT; and a shared radio fronthaul interface in communication with a virtual baseband unit (VBBU) for the first RAT and the second RAT, The first functional RU and the second functional RU use the shared radio fronthaul interface to send partially processed radio data to the VBBU.
1 . A multi-radio access technology (multi-RAT) remote radio head (RRH), comprising:
a first functional radio unit (RU) providing RF and Low PHY functions of a first functional split for a first RAT;
a second functional radio unit (RU) providing RF functions of a second functional split for a second RAT; and
a shared radio fronthaul interface in communication with a virtual baseband unit (VBBU) supporting functional split processing for the first RAT and the second RAT,
wherein the first functional RU and the second functional RU use the shared radio fronthaul interface to send at least RF layer-processed radio data to the VBBU for remaining processing for the first functional split for the first RAT and for remaining processing for the second functional split for the second RAT.
2 . The multi-RAT RRH of claim 1 , wherein the first RAT is 4G or 5G, and wherein the radio fronthaul interface is Common Public Radio Interface (CPRI) or Enhanced Common Public Radio Interface (eCPRI).
3 . The multi-RAT RRH of claim 1 , wherein the second RAT is 2G or 3G, and wherein the radio fronthaul interface is Common Public Radio Interface (CPRI) or Enhanced Common Public Radio Interface (eCPRI).
4 . The multi-RAT RRH of claim 1 , wherein the first and the second functional RU are colocated on a single physical device and virtualized to operate as separate processes.
5 . The multi-RAT RRH of claim 1 , wherein the first and the second functional RU are instantiated as virtualized containers.
6 . A method of wireless telecommunications, comprising:
by a first functional radio unit (RU), providing RF and Low PHY functions of a first functional split for a first RAT;
by a second functional radio unit (RU), providing RF functions of a second functional split for a second RAT; and
sending, by the first functional RU and the second functional RU, on a shared radio fronthaul interface in communication with a virtual baseband unit (VBBU), supporting functional split processing for the first RAT and the second RAT, at least RF layer-processed radio data to the VBBU for remaining processing for the first functional split for the first RAT and for remaining processing for the second functional split for the second RAT.
7 . The method of claim 6 , wherein the first RAT is 4G or 5G, and wherein the radio fronthaul interface is Common Public Radio Interface (CPRI) or Enhanced Common Public Radio Interface (eCPRI).
8 . The method of claim 6 , wherein the second RAT is 2G or 3G, and wherein the radio fronthaul interface is Common Public Radio Interface (CPRI) or Enhanced Common Public Radio Interface (eCPRI).
9 . The method of claim 6 , wherein the first and the second functional RU are colocated on a single physical device and virtualized to operate as separate processes.
10 . The method of claim 6 , wherein the first and the second functional RU are instantiated as virtualized containers.
11 . A non-transitory computer-readable medium containing instructions wireless telecommunications which, when executed, cause a system to perform steps comprising:
by a first functional radio unit (RU), providing RF and Low PHY functions of a first functional split for a first RAT;
by a second functional radio unit (RU), providing RF functions of a second functional split for a second RAT; and
sending, by the first functional RU and the second functional RU, on a shared radio fronthaul interface in communication with a virtual baseband unit (VBBU), supporting functional split processing for the first RAT and the second RAT, at least RF layer-processed radio data to the VBBU for remaining processing for the first functional split for the first RAT and for remaining processing for the second functional split for the second RAT.
12 . The non-transitory computer-readable medium of claim 11 , wherein the first RAT is 4G or 5G, and wherein the radio fronthaul interface is Common Public Radio Interface (CPRI) or Enhanced Common Public Radio Interface (eCPRI).
13 . The non-transitory computer-readable medium of claim 11 , wherein the second RAT is 2G or 3G, and wherein the radio fronthaul interface is Common Public Radio Interface (CPRI) or Enhanced Common Public Radio Interface (eCPRI).
14 . The non-transitory computer-readable medium of claim 11 , wherein the first and the second functional RU are colocated on a single physical device and virtualized to operate as separate processes.
15 . The non-transitory computer-readable medium of claim 11 , wherein the first and the second functional RU are instantiated as virtualized containers.