SL-PRS-ResourcePool (SL-PRS-ResourcePool-r18)

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.5

SL-PRS-ResourcePool-r18 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v18.0.0 (2024-01) · Last changed v18.7.0 (2025-10)

Definition

The IE SL-PRS-ResourcePool specifies the configuration information for NR sidelink PRS dedicated resource pool.

SL-PRS-ResourcePool-r18 ::=                  SEQUENCE {
    sl-PRS-PSCCH-Config-r18                      SetupRelease { SL-PSCCH-ConfigDedicatedSL-PRS-RP-r18}           OPTIONAL,   -- Need M
    sl-StartRB-SubchannelDedicatedSL-PRS-RP-r18  INTEGER (0..265)                                                OPTIONAL,   -- Need M
    sl-FilterCoefficient-r18                     FilterCoefficient                                               OPTIONAL,   -- Need M
    sl-ThreshS-RSSI-PRS-CBR-r18                  INTEGER (0..45)                                                 OPTIONAL,   -- Need M
    sl-RB-Number-r18                             INTEGER (10..275)                                               OPTIONAL,   -- Need M
    sl-TimeResource-r18                          BIT STRING (SIZE (10..160))                                     OPTIONAL,   -- Need M
    sl-PosAllowedResourceSelectionConfig-r18     ENUMERATED {c1, c2, c3}                                         OPTIONAL,   -- Need M
    sl-PRS-ResourceReservePeriodList-r18         SEQUENCE (SIZE (1..16)) OF SL-ReservationPeriodAllowedDedicatedSL-PRS-RP-r18
    OPTIONAL,
    sl-PRS-ResourcesDedicatedSL-PRS-RP-r18       SEQUENCE (SIZE (1..12)) OF SL-PRS-ResourceDedicatedSL-PRS-RP-r18 OPTIONAL,  -- Need M
    sl-PRS-PowerControl-r18                      SL-PRS-PowerControl-r18                                         OPTIONAL,   -- Need M
    sl-SensingWindowDedicatedSL-PRS-RP-r18       ENUMERATED {ms100, ms1100}                                      OPTIONAL,   -- Need M
    sl-TxPercentageDedicatedSL-PRS-RP-List-r18   SEQUENCE (SIZE (8)) OF SL-TxPercentageDedicatedSL-PRS-RP-Config-r18 OPTIONAL, -- Need M
    sl-SCI-basedSL-PRS-TxTriggerSCI1-B-r18       BOOLEAN                                                         OPTIONAL,   -- Need M
    sl-NumSubchannelDedicatedSL-PRS-RP-r18       INTEGER (1..27)                                                 OPTIONAL,   -- Need M
    sl-SubchannelSizeDedicatedSL-PRS-RP-r18      ENUMERATED {n10, n12, n15, n20, n25, n50, n75, n100}            OPTIONAL,   -- Need M
    sl-MaxNumPerReserveDedicatedSL-PRS-RP-r18    ENUMERATED {n2, n3}                                             OPTIONAL,   -- Need M
    sl-NumReservedBitsSCI1B-DedicatedSL-PRS-RP-r18 INTEGER (0..20)                                               OPTIONAL,   -- Need R
    sl-SRC-ID-LenDedicatedSL-PRS-RP-r18          ENUMERATED {n12, n24}                                           OPTIONAL,   -- Need M
    sl-CBR-PriorityTxConfigDedicatedSL-PRS-RP-List-r18 SEQUENCE (SIZE (1..8)) OF SL-PriorityTxConfigIndexDedicatedSL-PRS-RP-r18
    OPTIONAL,   -- Need M
    sl-TimeWindowSizeCBR-DedicatedSL-PRS-RP-r18   ENUMERATED {ms100, slot100}                                    OPTIONAL,   -- Need M
    sl-TimeWindowSizeCR-DedicatedSL-PRS-RP-r18    ENUMERATED {ms1000, slot1000}                                  OPTIONAL,   -- Need M
    sl-CBR-CommonTxDedicatedSL-PRS-RP-List-r18    SL-CBR-CommonTxDedicatedSL-PRS-RP-List-r18                     OPTIONAL,   -- Need M
    sl-PriorityThreshold-UL-URLLC-r18             INTEGER (1..9)                                                 OPTIONAL,   -- Need M
    sl-PriorityThreshold-r18                      INTEGER (1..9)                                                 OPTIONAL,   -- Need M
    sl-SelectionWindowListDedicatedSL-PRS-RP-r18  SEQUENCE (SIZE (8)) OF SL-SelectionWindowConfigDedicatedSL-PRS-RP-r18
    OPTIONAL,   -- Need M
    sl-Thres-RSRP-ListDedicatedSL-PRS-RP-r18      SEQUENCE (SIZE (64)) OF SL-PRS-ThresRSRP-r18                   OPTIONAL,   -- Need M
    sl-PreemptionEnableDedicatedSL-PRS-RP-r18     ENUMERATED {enabled, pl1, pl2, pl3, pl4, pl5, pl6, pl7, pl8}   OPTIONAL    -- Need R
}

Fields (27)

Field	Description
sl-PRS-PSCCH-Config-r18 SetupRelease { SL-PSCCH-ConfigDedicatedSL-PRS-RP-r18} · OPTIONAL Need M
sl-StartRB-SubchannelDedicatedSL-PRS-RP-r18 INTEGER (0..265) · OPTIONAL Need M	Indicates the lowest RB index of the SL PRS dedicated resource pool with respect to the lowest RB index of a SL BWP.
sl-FilterCoefficient-r18 FilterCoefficient · OPTIONAL Need M since v18.1.0	This field indicates the filtering coefficient for long-term measurement and reference signal power derivation used for sidelink open-loop power control.
sl-ThreshS-RSSI-PRS-CBR-r18 INTEGER (0..45) · OPTIONAL Need M since v18.1.0	Indicates the S-RSSI threshold for determining the contribution of a sub-channel to the SL-PRS CBR measurement in a dedicated SL-PRS resource pool. Value 0 corresponds to -112 dBm, value 1 to -110 dBm, value n to (-112 + n2) dBm, and so on.
sl-RB-Number-r18 INTEGER (10..275) · OPTIONAL Need M	Indicates the number of PRBs in the corresponding SL PRS dedicated resource pool, which consists of contiguous PRBs only.
sl-TimeResource-r18 BIT STRING (SIZE (10..160)) · OPTIONAL Need M	This field indicates the bitmap of the SL PRS dedicated resource pool, which is defined by repeating the bitmap with a periodicity during a SFN or DFN cycle.
sl-PosAllowedResourceSelectionConfig-r18 ENUMERATED {c1, c2, c3} · OPTIONAL Need M	Indicates allowed resource allocation method configured per resource pool. c1: only sensing allowed c2: only random resource selection allowed c3: sensing and random resource selection allowed
sl-PRS-ResourceReservePeriodList-r18 SEQUENCE (SIZE (1..16)) OF SL-ReservationPeriodAllowedDedicatedSL-PRS-RP-r18 · OPTIONAL	Indicates set of possible resource reservation period in the unit of ms allowed in the resource pool. Up to 16 values can be configured per resource pool. The value ms0 is always configured.
sl-PRS-ResourcesDedicatedSL-PRS-RP-r18 SEQUENCE (SIZE (1..12)) OF SL-PRS-ResourceDedicatedSL-PRS-RP-r18 · OPTIONAL Need M	Indicates SL PRS resources in a slot of dedicated SL PRS resource pool as defined in TS 38.211 [16].
sl-PRS-PowerControl-r18 SL-PRS-PowerControl-r18 · OPTIONAL Need M
sl-SensingWindowDedicatedSL-PRS-RP-r18 ENUMERATED {ms100, ms1100} · OPTIONAL Need M	Indicates the start of the sensing window for SL PRS in a dedicated resource pool.
sl-TxPercentageDedicatedSL-PRS-RP-List-r18 SEQUENCE (SIZE (8)) OF SL-TxPercentageDedicatedSL-PRS-RP-Config-r18 · OPTIONAL Need M	Indicates list of minimum Tx percentage (list per priority).
sl-SCI-basedSL-PRS-TxTriggerSCI1-B-r18 BOOLEAN · OPTIONAL Need M	Indicates presence of a bit-field in SCI format 1-B to trigger SL-PRS transmission by a receiving UE.
sl-NumSubchannelDedicatedSL-PRS-RP-r18 INTEGER (1..27) · OPTIONAL Need M	Indicates the number of subchannels in the corresponding resource pool, which consists of contiguous PRBs only.
sl-SubchannelSizeDedicatedSL-PRS-RP-r18 ENUMERATED {n10, n12, n15, n20, n25, n50, n75, n100} · OPTIONAL Need M	Indicates size of a subchannel for PSCCH in number of RBs.
sl-MaxNumPerReserveDedicatedSL-PRS-RP-r18 ENUMERATED {n2, n3} · OPTIONAL Need M	Indicates the maximum number of SL PRS reservations that can be indicated by an SCI.
sl-NumReservedBitsSCI1B-DedicatedSL-PRS-RP-r18 INTEGER (0..20) · OPTIONAL Need R	Indicates the number of reserved bits in SCI format 1-B.
sl-SRC-ID-LenDedicatedSL-PRS-RP-r18 ENUMERATED {n12, n24} · OPTIONAL Need M	Indicates the number of bits used for the source ID in SCI format 1-B.
sl-CBR-PriorityTxConfigDedicatedSL-PRS-RP-List-r18 SEQUENCE (SIZE (1..8)) OF SL-PriorityTxConfigIndexDedicatedSL-PRS-RP-r18 · OPTIONAL Need M	Indicates the mapping between SL-PRS transmission parameter (such as transmission power, etc.) sets by using the indexes of the configurations in sl-CBR-SL-PRS-TxConfigList , CBR ranges by using the indexes to the entry of the CBR range configurations in sl-CBR-RangeDedicatedSL-PRS-RP-List , and priority ranges. It also indicates the default SL-PRS transmission parameters to be used when CBR measurement results are not available.
sl-TimeWindowSizeCBR-DedicatedSL-PRS-RP-r18 ENUMERATED {ms100, slot100} · OPTIONAL Need M	Indicates the time window size for CBR measurement in a dedicated SL-PRS resource pool.
sl-TimeWindowSizeCR-DedicatedSL-PRS-RP-r18 ENUMERATED {ms1000, slot1000} · OPTIONAL Need M	Indicates the time window size for CR evaluation in a dedicated SL-PRS resource pool.
sl-CBR-CommonTxDedicatedSL-PRS-RP-List-r18 SL-CBR-CommonTxDedicatedSL-PRS-RP-List-r18 · OPTIONAL Need M
sl-PriorityThreshold-UL-URLLC-r18 INTEGER (1..9) · OPTIONAL Need M	Indicates the threshold used to determine whether NR sidelink transmission in dedicated SL PRS resource pool is prioritized over uplink transmission of priority index 1 as specified in TS 38.213[13], clause 16.2.4.3, or whether PUCCH transmission carrying SL HARQ is prioritized over PUCCH transmission carrying UCI of priority index 1 if they overlap in time as specified in TS 38.213 [13], clause 9.2.5.0.
sl-PriorityThreshold-r18 INTEGER (1..9) · OPTIONAL Need M	Indicates the threshold used to determine whether NR sidelink transmission in dedicated SL PRS resource pool is prioritized over uplink transmission of priority index 0 as specified in TS 38.213[13], clause 16.2.4.3, or whether PUCCH transmission carrying SL HARQ is prioritized over PUCCH transmission carrying UCI of priority index 0 if they overlap in time as specified in TS 38.213 [13], clause 9.2.5.0.
sl-SelectionWindowListDedicatedSL-PRS-RP-r18 SEQUENCE (SIZE (8)) OF SL-SelectionWindowConfigDedicatedSL-PRS-RP-r18 · OPTIONAL Need M since v18.2.0	Parameter that determines the end of the selection window in the resource selection for a SL-PRS with respect to priority indicated in SCI. Value n1 corresponds to 12 µ , value n5 corresponds to 52 µ , and so on, where µ = 0,1,2,3 refers to SCS 15,30,60,120 kHz respectively.
sl-Thres-RSRP-ListDedicatedSL-PRS-RP-r18 SEQUENCE (SIZE (64)) OF SL-PRS-ThresRSRP-r18 · OPTIONAL Need M since v18.2.0	Indicates a list of 64 thresholds, the threshold should be selected based on the priority in the decoded SCI and the priority in the SCI to be transmitted.
sl-PreemptionEnableDedicatedSL-PRS-RP-r18 ENUMERATED {enabled, pl1, pl2, pl3, pl4, pl5, pl6, pl7, pl8} · OPTIONAL Need R since v18.2.0	Indicates whether pre-emption is disabled or enabled in a resource pool. If the field is present and the value is pl1 , pl2 , and so on (but not enabled ), it means that pre-emption is enabled and a priority level p_preemption is configured. If the field is present and the value is enabled , the pre-emption is enabled (but p_preemption is not configured) and pre-emption is applicable to all levels.

SL-PRS-ResourcePool (SL-PRS-ResourcePool-r18)

Definition

Fields (27)

Used by (3)

Uses (11)

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