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Content for  TS 38.215  Word version:  16.4.0

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1…   5…   5.1.12…   5.1.25…   5.2…

 

5.1.25  Sidelink received signal strength indicator (SL RSSI) |R16|

Definition
Sidelink Received Signal Strength Indicator (SL RSSI) is defined as the linear average of the total received power (in [W]) observed in the configured sub-channel in OFDM symbols of a slot configured for PSCCH and PSSCH, starting from the 2nd OFDM symbol.
For frequency range 1, the reference point for the SL RSSI shall be the antenna connector of the UE. For frequency range 2, SL RSSI shall be measured based on the combined signal from antenna elements corresponding to a given receiver branch. For frequency range 1 and 2, if receiver diversity is in use by the UE, the reported SL RSSI value shall not be lower than the corresponding SL RSSI of any of the individual receiver branches.
Applicable for
  • RRC_IDLE intra-frequency,
  • RRC_IDLE inter-frequency,
  • RRC_CONNECTED intra-frequency,
  • RRC_CONNECTED inter-frequency
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5.1.26  Sidelink channel occupancy ratio (SL CR) |R16|

Definition
Sidelink Channel Occupancy Ratio (SL CR) evaluated at slot n is defined as the total number of sub-channels used for its transmissions in slots [n-a, n-1] and granted in slots [n, n+b] divided by the total number of configured sub-channels in the transmission pool over [n-a, n+b].
Applicable for
  • RRC_IDLE intra-frequency,
  • RRC_IDLE inter-frequency,
  • RRC_CONNECTED intra-frequency,
  • RRC_CONNECTED inter-frequency
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5.1.27  Sidelink channel busy ratio (SL CBR) |R16|Word‑p. 18

Definition
SL Channel Busy Ratio (SL CBR) measured in slot n is defined as the portion of sub-channels in the resource pool whose SL RSSI measured by the UE exceed a (pre-)configured threshold sensed over a CBR measurement window [n-a, n-1], wherein a is equal to 100 or 100·2µ slots, according to higher layer parameter sl-TimeWindowSizeCBR.
Applicable for
  • RRC_IDLE intra-frequency,
  • RRC_IDLE inter-frequency,
  • RRC_CONNECTED intra-frequency,
  • RRC_CONNECTED inter-frequency
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5.1.28  DL PRS reference signal received power (DL PRS-RSRP) |R16|

Definition
DL PRS reference signal received power (DL PRS-RSRP), is defined as the linear average over the power contributions (in [W]) of the resource elements that carry DL PRS reference signals configured for RSRP measurements within the considered measurement frequency bandwidth.
For frequency range 1, the reference point for the DL PRS-RSRP shall be the antenna connector of the UE. For frequency range 2, DL PRS-RSRP shall be measured based on the combined signal from antenna elements corresponding to a given receiver branch. For frequency range 1 and 2, if receiver diversity is in use by the UE, the reported DL PRS-RSRP value shall not be lower than the corresponding DL PRS-RSRP of any of the individual receiver branches.
Applicable for
  • RRC_CONNECTED
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5.1.29  DL reference signal time difference (DL RSTD) |R16|

Definition
DL reference signal time difference (DL RSTD) is the DL relative timing difference between the Transmission Point (TP) [18] j and the reference TP i, defined as TSubframeRxj - TSubframeRxi,
Where:
  • TSubframeRxj is the time when the UE receives the start of one subframe from TP j.
  • TSubframeRxi is the time when the UE receives the corresponding start of one subframe from TP i that is closest in time to the subframe received from TP j.
Multiple DL PRS resources can be used to determine the start of one subframe from a TP.
For frequency range 1, the reference point for the DL RSTD shall be the antenna connector of the UE. For frequency range 2, the reference point for the DL RSTD shall be the antenna of the UE.
Applicable for
  • RRC_CONNECTED
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5.1.30  UE Rx - Tx time difference |R16|Word‑p. 19

Definition
The UE Rx - Tx time difference is defined as TUE-RX - TUE-TX
Where:
  • TUE-RX is the UE received timing of downlink subframe #i from a Transmission Point (TP) [18], defined by the first detected path in time.
  • TUE-TX is the UE transmit timing of uplink subframe #j that is closest in time to the subframe #i received from the TP.
Multiple DL PRS resources can be used to determine the start of one subframe of the first arrival path of the TP.
For frequency range 1, the reference point for TUE-RX measurement shall be the Rx antenna connector of the UE and the reference point for TUE-TX measurement shall be the Tx antenna connector of the UE. For frequency range 2, the reference point for TUE-RX measurement shall be the Rx antenna of the UE and the reference point for TUE-TX measurement shall be the Tx antenna of the UE.
Applicable for
  • RRC_CONNECTED
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5.1.31  SS reference signal antenna relative phase (SS-RSARP) |R16|

Definition
SS reference signal antenna relative phase (SS-RSARP) is defined as the difference of the average phase of the receive signals on the resource elements that carry secondary synchronization signals (SS) received by the reference individual receiver branch (Rx0) and the average phase of the receive signals on the resource elements that carry secondary synchronization signals (SS) received by one other individual receiver branch (Rx1 ... Rxn). The measurement time resource(s) for SS-RSARP are confined within SS/PBCH Block Measurement Time Configuration (SMTC) window duration.
SS-RSARP shall be measured only among the reference signals corresponding to SS/PBCH blocks with the same SS/PBCH block index and the same physical-layer cell identity.
If higher-layers indicate certain SS/PBCH blocks for performing SS-RSARP measurements, then SS-RSARP is measured only from the indicated set of SS/PBCH block(s).
For frequency range 1, the reference point for the SS-RSARP shall be the antenna connector of the UE. For frequency range 2, SS-RSARP shall be measured based on the combined signal from antenna elements corresponding to a given receiver branch.
Applicable for
  • RRC_CONNECTED intra-frequency
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5.1.32  UTRA FDD CPICH RSCP |R16|Word‑p. 20

Definition
Received Signal Code Power, the received power on one code measured on the Primary CPICH. The reference point for the RSCP shall be the antenna connector of the UE. If Tx diversity is applied on the Primary CPICH the received code power from each antenna shall be separately measured and summed together in [W] to a total received code power on the Primary CPICH. If receiver diversity is in use by the UE, the reported value shall not be lower than the corresponding CPICH RSCP of any of the individual receive antenna branches.
Applicable for
  • RRC_CONNECTED inter-RAT
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5.1.33  UTRA FDD carrier RSSI |R16|

Definition
The received wide band power, including thermal noise and noise generated in the receiver, within the bandwidth defined by the receiver pulse shaping filter. The reference point for the measurement shall be the antenna connector of the UE. If receiver diversity is in use by the UE, the reported value shall not be lower than the corresponding UTRA carrier RSSI of any of the individual receive antenna branches.
Applicable for
  • RRC_CONNECTED inter-RAT
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5.1.34  UTRA FDD CPICH Ec/No |R16|

Definition
The received energy per chip divided by the power density in the band. If receiver diversity is not in use by the UE, the CPICH Ec/No is identical to CPICH RSCP/UTRA Carrier RSSI. Measurement shall be performed on the Primary CPICH. The reference point for the CPICH Ec/No shall be the antenna connector of the UE. If Tx diversity is applied on the Primary CPICH the received energy per chip (Ec) from each antenna shall be separately measured and summed together in [Ws] to a total received chip energy per chip on the Primary CPICH, before calculating the Ec/No. If receiver diversity is in use by the UE, the measured CPICH Ec/No value shall not be lower than the corresponding CPICH RSCPi/UTRA Carrier RSSIi of receive antenna branch i.
Applicable for
  • RRC_CONNECTED inter-RAT
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