Full power transmission mode 2 TPMI list signaling enhancement
Disclosed are enhancements for a Mode 2 TPMI list indication, including TPMI capability reporting design, TPMI list enhancement for four-port partial coherent UE, and TPMI list enhancement for four-port non-coherent UE.
1 . A method, performed by a user equipment (UE), for facilitating full power transmission Mode 2 transmit precoding matrix indicator (TPMI) list signaling, the method comprising:
generating one capability report indicating both an intended TPMI configuration and a downgrade TPMI configuration of the UE in the same capability report, the intended TPMI configuration corresponding to a maximum port and desired coherency capability, the downgrade TPMI configuration corresponding to fewer ports and non-coherent capabilities,
wherein the intended TPMI configuration indicates support for four-port full-coherent operation;
wherein the downgrade TPMI configuration includes:
a two-bit bitmap for supporting a two-port configuration,
a four-port non-coherent TPMI list index, and
a four-port partial-coherent TPMI list index, wherein a fall back non-coherent TPMI list is based on the four-port partial-coherent TPMI list index, wherein the fall back non-coherent TPMI list comprises non-coherent TPMIs corresponding to the four-port partial-coherent TPMI list index, and
wherein the capability report indicates the following precoding matrices for four-port partial coherent UE, and wherein the precoding matrices supports a power amplifier (PA) architecture [23, 17, 23, 17] dBm:
1
2
[
1
0
0
0
]
,
1
2
[
0
0
1
0
]
,
1
2
[
1
0
1
0
]
,
1
2
[
1
0
-
1
0
]
,
1
2
[
1
0
j
0
]
,
1
2
[
1
0
-
j
0
]
,
1
2
[
1
0
0
0
0
1
0
0
]
transmitting to a radio access node the capability report to simultaneously report the intended TPMI configuration and the downgrade TPMI configuration of the UE the in a same capability reporting transmission.
2 . The method of claim 1 in which the capability report indicates the following precoding matrices for four-port partial coherent UE:
1
2
[
1
0
0
0
]
,
1
2
[
0
1
0
0
]
,
1
2
[
0
0
1
0
]
,
1
2
[
1
0
1
0
]
,
1
2
[
1
0
-
1
0
]
,
1
2
[
1
0
j
0
]
,
1
2
[
1
0
-
j
0
]
,
1
2
[
1
0
0
1
0
0
0
0
]
,
1
2
[
1
0
0
0
0
1
0
0
]
,
1
2
[
0
0
1
0
0
1
0
0
]
,
1
2
[
1
0
0
0
1
0
0
0
1
0
0
0
]
.
3 . The method of claim 1 in which the capability report indicates the following precoding matrix for four-port non-coherent UE:
1
2
[
1
0
0
0
0
1
0
0
]
.
4 . The method of claim 1 in which the capability report indicates the following precoding matrix for four-port non-coherent UE:
1
2
[
1
0
0
0
0
1
0
0
]
,
1
2
[
1
0
0
1
0
0
0
0
]
,
1
2
[
1
0
0
0
0
0
0
1
]
,
1
2
[
0
0
1
0
0
1
0
0
]
,
1
2
[
0
0
1
0
0
0
0
1
]
,
1
2
[
0
0
0
0
1
0
0
1
]
,
1
2
[
1
0
0
0
1
0
0
0
1
0
0
0
]
.
5 . The method of claim 1 , further comprising including in the capability report a TPMI group choice selected from a group of eight or more choices including a choice representing a combination of two other choices.
6 . The method of claim 1 , further comprising including in the capability report a TPMI group choice selected from a group of eight or more choices including a choice representing a subset of TPMI from another choice.
7 . The method of claim 1 , further comprising including in the capability report multiple TPMI group choices.
8 . A method, performed by a radio access node (RAN), for facilitating full power transmission in a mode 2 transmit precoding matrix indicator (TPMI) list signaling, the method comprising:
processing one capability report from a user equipment (UE) to determine a codebook-based physical uplink shared channel (PUSCH) for the full power transmission, the capability report indicating both an intended TPMI configuration and a downgrade TPMI configuration of the UE, the intended TPMI configuration corresponding to a maximum port and desired coherency capability, and the downgrade TPMI configuration corresponding to fewer ports and non-coherent capabilities, wherein the capability report simultaneously reports the intended TPMI configuration and the downgrade TPMI configuration in a same capability reporting transmission,
wherein the intended TPMI configuration indicates support for four-port full-coherent operation;
wherein the downgrade TPMI configuration includes:
a two-bit bitmap for supporting a two-port configuration,
a four-port non-coherent TPMI list index, and
a four-port partial-coherent TPMI list index, wherein a fall back non-coherent TPMI list is based on the four-port partial-coherent TPMI list index, wherein the fall back non-coherent TPMI list comprises non-coherent TPMIs corresponding to the four-port partial-coherent TPMI list index, and
wherein the capability report indicates the following precoding matrices for four-port partial coherent UE, and wherein the precoding matrices supports a power amplifier (PA) architecture [23, 17, 23, 17] dBm:
1
2
[
1
0
0
0
]
,
1
2
[
0
0
1
0
]
,
1
2
[
1
0
1
0
]
,
1
2
[
1
0
-
1
0
]
,
1
2
[
1
0
j
0
]
,
1
2
[
1
0
-
j
0
]
,
1
2
[
1
0
0
0
0
1
0
0
]
;
and
transmitting to the UE downlink control information (DCI) including a TPMI indication configuring the UE for the full power transmission.
9 . The method of claim 8 in which the downgrade TPMI configuration is based on a TPMI group choice excluding any partial-coherent TPMIs.
10 . The method of claim 8 , in which the TPMI indication represents the following precoding matrices for four-port partial coherent UE:
1
2
[
1
0
0
0
]
,
1
2
[
0
1
0
0
]
,
1
2
[
0
0
1
0
]
,
1
2
[
1
0
1
0
]
,
1
2
[
1
0
-
1
0
]
,
1
2
[
1
0
j
0
]
,
1
2
[
1
0
-
j
0
]
,
1
2
[
1
0
0
1
0
0
0
0
]
,
1
2
[
1
0
0
0
0
1
0
0
]
,
1
2
[
0
0
1
0
0
1
0
0
]
,
1
2
[
1
0
0
0
1
0
0
0
1
0
0
0
]
.
11 . The method of claim 8 , in which the TPMI indication represents the following precoding matrix for four-port non-coherent UE:
1
2
[
1
0
0
0
0
1
0
0
]
.
12 . The method of claim 8 , in which the TPMI indication represents the following precoding matrices for four-port non-coherent UE:
1
2
[
1
0
0
0
0
1
0
0
]
,
1
2
[
1
0
0
1
0
0
0
0
]
,
1
2
[
1
0
0
0
0
0
0
1
]
,
1
2
[
0
0
1
0
0
1
0
0
]
,
1
2
[
0
0
1
0
0
0
0
1
]
,
1
2
[
0
0
0
0
1
0
0
1
]
,
1
2
[
1
0
0
0
1
0
0
0
1
0
0
0
]
.
13 . A user equipment (UE) apparatus comprising:
a processor; and
a memory storing instructions that, when executed by the processor, configure the apparatus to:
generate one capability report indicating both an intended TPMI configuration and a downgrade TPMI configuration of the UE in the same capability report, the intended TPMI configuration corresponding to a maximum port and desired coherency capability, the downgrade TPMI configuration corresponding to fewer ports and non-coherent capabilities,
wherein the intended TPMI configuration indicates support for four-port full-coherent operation;
wherein the downgrade TPMI configuration includes:
a two-bit bitmap for supporting a two-port configuration,
a four-port non-coherent TPMI list index, and
a four-port partial-coherent TPMI list index, wherein a fall back non-coherent TPMI list is based on the four-port partial-coherent TPMI list index, wherein the fall back non-coherent TPMI list comprises non-coherent TPMIs corresponding to the four-port partial-coherent TPMI list index, and
wherein the capability report indicates the following precoding matrices for four-port partial coherent UE, and wherein the precoding matrices supports a power amplifier (PA) architecture [23, 17, 23, 17] dBm:
1
2
[
1
0
0
0
]
,
1
2
[
0
0
1
0
]
,
1
2
[
1
0
1
0
]
,
1
2
[
1
0
-
1
0
]
,
1
2
[
1
0
j
0
]
,
1
2
[
1
0
-
j
0
]
,
1
2
[
1
0
0
0
0
1
0
0
]
;
and
transmit to a radio access node the capability report to simultaneously report the intended TPMI configuration and the downgrade TPMI configuration of the UE the in a same capability reporting transmission.
14 . The UE apparatus of claim 13 , in which the capability report indicates the following precoding matrices for four-port partial coherent UE:
1
2
[
1
0
0
0
]
,
1
2
[
0
1
0
0
]
,
1
2
[
0
0
1
0
]
,
1
2
[
1
0
1
0
]
,
1
2
[
1
0
-
1
0
]
,
1
2
[
1
0
j
0
]
,
1
2
[
1
0
-
j
0
]
,
1
2
[
1
0
0
1
0
0
0
0
]
,
1
2
[
1
0
0
0
0
1
0
0
]
,
1
2
[
0
0
1
0
0
1
0
0
]
,
1
2
[
1
0
0
0
1
0
0
0
1
0
0
0
]
.
15 . The UE apparatus of claim 13 , in which the capability report indicates the following precoding matrix for four-port non-coherent UE:
1
2
[
1
0
0
0
0
1
0
0
]
.
16 . The UE apparatus of claim 13 , in which the capability report indicates the following precoding matrix for four-port non-coherent UE:
1
2
[
1
0
0
0
0
1
0
0
]
,
1
2
[
1
0
0
1
0
0
0
0
]
,
1
2
[
1
0
0
0
0
0
0
1
]
,
1
2
[
0
0
1
0
0
1
0
0
]
,
1
2
[
0
0
1
0
0
0
0
1
]
,
1
2
[
0
0
0
0
1
0
0
1
]
,
1
2
[
1
0
0
0
1
0
0
0
1
0
0
0
]
.
17 . The UE apparatus of claim 13 , wherein the capability report includes a TPMI group choice selected from a group of eight or more choices including a choice representing a combination of two other choices.
18 . The UE apparatus of claim 13 , wherein the capability report includes a TPMI group choice selected from a group of eight or more choices including a choice representing a subset of TPMI from another choice.
19 . The UE apparatus of claim 13 , wherein the capability report includes multiple TPMI group choices.