Mechanism on measurement gap based in inter-frequency measurement
An apparatus of a user equipment (UE) comprises one or more baseband processors to process a message received from a Fifth Generation (5G) NodeB (gNB) to perform one or more measurements in one or more target frequency layers, and for each of the one or more target frequency layers, to divide one or more other frequency layers into one of three categories comprising fully overlapped frequency layers, partially overlapped frequency layers, and non-overlapped frequency layers. The apparatus includes a memory to store the message.
1. A user equipment (UE), comprising:
radio frequency (RF) circuitry configured to communicate with a network; and
a processor communicatively coupled to the RF circuitry and configured to perform operations, comprising:
receiving a message from a base station indicating that the UE is to perform one or more measurements in one or more target frequency layers, and for each of the one or more target frequency layers, to divide one or more other frequency layers into one of three categories comprising fully overlapped frequency layers, partially overlapped frequency layers, and non-overlapped frequency layers, wherein the UE uses a first scaling factor for measurements of frequency range 1 (FR1) carriers and a second scaling factor for per-frequency range (FR) based measurements for frequency range 2 (FR2) carriers.
2. The UE of claim 1 , the operations further comprising: determining a measurement delay and/or cell identification delay based on fully overlapped frequency layers and partially overlapped frequency layers.
3. The UE of claim 2 , wherein a corresponding delay for a fully overlapped frequency layer is defined as:
T
full
_
overlap
=
∑
m
=
1
N
full
,
FR
M
identify
inter
-
freq
,
FR
1
×
Max
(
SMTC
m
,
MGRP
)
+
∑
n
=
1
N
full
,
FR
M
identify
inter
-
freq
,
FR
2
×
Max
(
SMTC
n
,
MGRP
)
.
4. The UE of claim 2 , wherein a corresponding delay for partially overlapped frequency layer is defined as:
T
partial
_
overlap
=
∑
m
=
1
N
partial
,
FR
1
L
m
×
M
identify
inter
-
freq
,
FR
×
Max
(
SMTC
m
,
MGRP
)
+
∑
n
=
1
N
partial
,
FR
2
L
n
×
M
identify
inter
-
fre
,
FR
×
Max
(
SMTC
n
,
MGRP
)
.
5. The UE of claim 2 , wherein one of the first or second scaling factors L is to be used to scale the measurement delay and/or identification delay based on a different synchronization signal block (SSB) based measurement timing configuration (SMTC) ratio of a target frequency layer and the one or more other frequency layers.
6. The UE of claim 5 , wherein the first scaling factor L is defined as L m =SMTC target /max (SMTC m , SMTC target ) to unify fully overlapped frequency layers and partially overlapped frequency layers for both per-UE based measurements and per-frequency range (FR) based measurement.
7. The UE of claim 1 , wherein the one or more measurements have a minimum cell identification delay and/or a minimum measurement delay, and wherein the operations further comprise:
calculating an availability of each individual measurement gap for a target measurement object (MO) based on a synchronization signal block (SSB) based measurement timing configuration (SMTC) periodicity and measurement gap (MG) repetition period MGRP of a competing MO.
8. The UE of claim 7 , wherein the operations further comprise:
determining an overall measurement by an SMTC period and a measurement order of one or more competing MO's, wherein the measurement delay and/or cell identification delay are minimized; and
discarding a corresponding gap to never be used to monitor the target MO in response to a calculated delay being shorter than a time when a gap becomes available.
9. A processor of a user equipment (UE) configured to perform operations, comprising:
receiving a message from a base station indicating that the UE is to perform one or more measurements in one or more target frequency layers, and for each of the one or more target frequency layers, to divide one or more other frequency layers into one of three categories comprising fully overlapped frequency layers, partially overlapped frequency layers, and non-overlapped frequency layers, wherein the UE uses a first scaling factor for measurements of frequency range 1 (FR1) carriers and a second scaling factor for per-frequency range (FR) based measurements for frequency range 2 (FR2) carriers.
10. The processor of claim 9 , the operations further comprising:
determining a measurement delay and/or cell identification delay based on fully overlapped frequency layers and partially overlapped frequency layers.
11. The processor of claim 10 , wherein a corresponding delay for a fully overlapped frequency layer is defined as:
T
full
_
overlap
=
∑
m
=
1
N
full
,
FR
M
identify
inter
-
freq
,
FR
1
×
Max
(
SMTC
m
,
MGRP
)
+
∑
n
=
1
N
full
,
FR
M
identify
inter
-
freq
,
FR
×
Max
(
SMTC
n
,
MGRP
)
.
12. The processor of claim 10 , wherein a corresponding delay for partially overlapped frequency layer is defined as:
T
partial
_
overlap
=
∑
m
=
1
N
partial
,
FR
L
m
×
M
identify
inter
-
fr
,
FR
1
×
Max
(
SMTC
m
,
MGRP
)
+
∑
n
=
1
N
partial
,
FR
L
n
×
M
identify
inter
-
freq
,
FR
2
×
Max
(
SMTC
n
,
MGRP
)
.
13. The processor of claim 10 , wherein one of the first or second scaling factors L is to be used to scale the measurement delay and/or identification delay based on a different synchronization signal block (SSB) based measurement timing configuration (SMTC) ratio of a target frequency layer and one or more other frequency layers.
14. The processor of claim 13 , wherein the first scaling factor L is defined as L m =SMTC target /max (SMTC m , SMTC target ) to unify fully overlapped frequency layers and partially overlapped frequency layers for both per-UE based measurements and per-frequency range (FR) based measurement.
15. One or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform operations, comprising:
receiving a message from a base station indicating that the UE is to perform one or more measurements in one or more target frequency layers, and for each of the one or more target frequency layers, to divide one or more other frequency layers into one of three categories comprising fully overlapped frequency layers, partially overlapped frequency layers, and non-overlapped frequency layers, wherein the UE uses a first scaling factor for measurements of frequency range 1 (FR1) carriers and a second scaling factor for per-frequency range (FR) based measurements for frequency range 2 (FR2) carriers.
16. The non-transitory computer-readable media of claim 15 , the operations further comprising:
determining a measurement delay and/or cell identification delay based on fully overlapped frequency layers and partially overlapped frequency layers.
17. The non-transitory computer-readable media of claim 16 , wherein a corresponding delay for a fully overlapped frequency layer is defined as:
T
full
_
overlap
=
∑
m
=
1
N
full
,
FR
1
M
identify
inter
-
fr
,
FR
1
×
Max
(
SMTC
m
,
MGRP
)
+
∑
n
=
1
N
full
,
FR
2
M
identify
inter
-
freq
,
FR
2
×
Max
(
SMTC
n
,
MGRP
)
.
18. The non-transitory computer-readable media of claim 16 , wherein a corresponding delay for partially overlapped frequency layer is defined as:
T
partial
_
overlap
=
∑
m
=
1
N
partial
,
FR
L
m
×
M
identify
inter
-
fr
,
FR
×
Max
(
SMTC
m
,
MGRP
)
+
∑
n
=
1
N
partial
,
FR
2
L
n
×
M
identify
inter
-
freq
,
FR
2
×
Max
(
SMTC
n
,
MGRP
)
.
19. The non-transitory computer-readable media of claim 16 , wherein one of the first or second scaling factors L is to be used to scale the measurement delay and/or identification delay based on a different synchronization signal block (SSB) based measurement timing configuration (SMTC) ratio of a target frequency layer and one or more other frequency layers.
20. The non-transitory computer-readable media of claim 19 , wherein the first scaling factor L is defined as L m =SMTC target /max (SMTC m , SMTC target ) to unify fully overlapped frequency layers and partially overlapped frequency layers for both per-UE based measurements and per-frequency range (FR) based measurement.