Positioning based on uplink and carrier aggregation

Abstract

Systems, methods, apparatuses, and computer program products for uplink and carrier aggregation based positioning. In some embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, generate at least one memory. The apparatus is caused to at least: receive, from a network entity, at least one first rule of a transmission power allocation of a network and at least one second rule of a transmission power allocation of the network different from the at least one first rule; receiving information of transmission power related to sounding reference signal transmission; determining whether a total power calculated for at least two sounding reference signal resources configured on the same symbol across the plurality of component carriers exceeds a total transmission power; and when the total transmission power exceeds the total transmission power, calculating at least two transmission powers for the at least two sounding reference signal resources based on the information.

Description

Technical Field

[0001] Some example embodiments may generally relate to mobile or wireless telecommunications systems, such as 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE), 5th Generation (5G) Radio Access Technology (RAT), New Radio (NR) access technology, 6th Generation (6G), and / or other communication systems. For example, certain example embodiments may relate to systems and / or methods for positioning based on uplink (UL) and carrier aggregation (CA). Background Art

[0002] Examples of mobile or wireless telecommunications systems may include radio frequency (RF) 5G RAT, Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN), LTE evolved UTRAN (E-UTRAN), LTE-Advanced (LTE-A), LTE-A Pro, NR access technology, and / or the MulteFire Alliance. 5G wireless systems refer to the next generation (NG) of radio systems and network architectures. 5G systems are typically built on 5G NR, but 5G (or NG) networks can also be built on E-UTRA radio. NR can support service categories such as enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC), and massive machine type communication (mMTC). NR is expected to deliver extremely wideband, ultra-robust, low latency connectivity, and support for large-scale networking of the Internet of Things (IoT). Next Generation Radio Access Network (NG-RAN) represents the radio access network (RAN) for 5G, which can provide radio access for NR, LTE, and LTE-A. Note that the node that provides radio access functionality to user equipment in 5G (e.g., similar to Node B in UTRAN or evolved Node B (eNB) in LTE) can be referred to as Next Generation Node B (gNB) when built on NR radio, and Next Generation eNB (NG-eNB) when built on E-UTRA radio. Summary of the Invention

[0003] According to some example embodiments, a method may include receiving information on transmission power associated with sounding reference signal transmissions. The method may further include determining whether the total power calculated for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds the total transmission power. The method may further include calculating at least two transmission powers for at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0004] According to certain example embodiments, an apparatus may include components for receiving information on transmission power associated with a sounding reference signal transmission. The apparatus may further include components for determining whether a calculated total power for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmission power. The apparatus may further include components for calculating at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0005] According to various example embodiments, a non-transitory computer-readable medium may include program instructions that, when executed by an apparatus, cause the apparatus to perform at least one method. The method may include receiving information on transmission power associated with a sounding reference signal transmission. The method may further include determining whether a calculated total power for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmission power. The method may further include calculating at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0006] According to some example embodiments, a computer program product may perform a method. The method may include receiving information on transmission power associated with a sounding reference signal transmission. The method may further include determining whether a calculated total power for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmission power. The method may further include calculating at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0007] According to certain example embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: receive information on transmission power associated with a sounding reference signal transmission. When the instructions are executed by the at least one processor, the apparatus may further be caused to at least: determine whether a calculated total power for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmission power. When the instructions are executed by the at least one processor, the apparatus may further be caused to at least: calculate at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0008] According to various example embodiments, an apparatus may include a receiving circuitry configured to receive information on transmission power associated with a sounding reference signal transmission. The apparatus may further include a determining circuitry configured to determine whether a total power calculated for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmission power. The apparatus may further include a calculating circuitry configured to calculate at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0009] According to some example embodiments, a method may include transmitting, to a user equipment, at least one first rule of a network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule.

[0010] According to certain example embodiments, an apparatus may include means for transmitting, to a user equipment, at least one first rule of a network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule.

[0011] According to various example embodiments, a non-transitory computer-readable medium may include program instructions that, when executed by an apparatus, cause the apparatus to perform at least one method. The method may include transmitting, to a user equipment, at least one first rule of a network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule.

[0012] According to some example embodiments, a computer program product may execute a method. The method may include transmitting, to a user equipment, at least one first rule of a network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule.

[0013] According to certain example embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: transmit, to a user equipment, at least one first rule of a network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule.

[0014] According to various example embodiments, an apparatus may include a transmitting circuitry configured to transmit, to a user equipment, at least one first rule of a network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For a proper understanding of the example embodiments, reference should be made to the accompanying drawings, in which:

[0016] Figure 1 An example of a positioning SRS configuration across multiple component carriers is shown;

[0017] Figure 2 An example of exceeding the total transmission power is shown;

[0018] Figure 3 An example of a signaling diagram according to certain example embodiments is shown;

[0019] Figure 4 An example of another signaling diagram according to some example embodiments is shown;

[0020] Figure 5 An example of another signaling diagram according to various example embodiments is shown;

[0021] Figure 6 An example of another signaling diagram according to certain example embodiments is shown;

[0022] Figure 7 An example of a flowchart of a method that can be performed by a user equipment according to some example embodiments is shown;

[0023] Figure 8 An example of a flowchart of a method that can be performed by a network entity according to various example embodiments is shown;

[0024] Figure 9 An example of a flowchart of a method that can be performed by a user equipment according to certain example embodiments is shown;

[0025] Figure 10 An example of a flowchart of a method that can be performed by a network entity according to some example embodiments is shown;

[0026] Figure 11 An example of a flowchart of a method that can be performed by a user equipment according to various example embodiments is shown;

[0027] Figure 12 An example of a flowchart of a method that can be performed by a network entity according to certain example embodiments is shown;

[0028] Figure 13 An example of a flowchart of a method that can be performed by a user equipment according to some example embodiments is shown;

[0029] Figure 14 An example of a flowchart of a method that can be performed by a network entity according to various example embodiments is shown;

[0030] Figure 15 illustrates examples of various network devices according to some example embodiments; and

[0031] Figure 16 illustrates examples of 5G network and system architectures according to certain example embodiments. Detailed Description

[0032] It will be readily understood that the components of certain example embodiments, as generally described and illustrated in the figures herein, may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of systems, methods, apparatuses, and computer program products for UL and CA-based positioning is not intended to limit the scope of certain example embodiments, but rather is representative of the selected example embodiments.

[0033] In 3GPP Release (Rel)-18 NR, NR positioning may include support for CA using positioning reference signals (PRS) and / or sounding reference signals (SRS). For example, bandwidth aggregation may be specified for positioning measurements across up to three contiguous in-band carriers. This may also include specifying signaling and procedures to support aggregation of PRS / SRS resources across positioning frequency layers (PFLs) / carriers, respectively, for positioning measurements under the assumption that signals via the aggregated resources are transmitted and received using a single radio frequency chain (e.g., the same antenna). Support for bandwidth aggregation for positioning measurements may only apply to timing-related measurements (e.g., reference signal time difference (RSTD), relative time of arrival (RTOA), UE / gNB receiver (Rx)-transmitter (Tx) time difference). RRM requirements (including PRS measurement period / reporting) may also be specified using measurement gaps in connected and inactive modes.

[0034] 3GPP Technical Specification (TS) 38.214 specifies simultaneous transmission of SRS resources. Specifically, for in-band CA operation and inter-band CA operation, depending on the UE's capabilities, the UE may simultaneously transmit more than one SRS resource configured by SRS-PosResource on different component carriers (CCs). Similarly, for in-band CA operation and inter-band CA operation, depending on the UE's capabilities, the UE may simultaneously transmit more than one SRS resource configured by SRS-PosResource and SRS-Resource on different CCs. The LMF may not request the base station to report positioning measurements obtained from CA of multiple SRS resources, which may be supported by 3GPP Rel-18 NR. However, in previous versions of NR, some techniques may support simultaneous transmission of two positioning SRS resources on different CCs, but do not involve simultaneous transmission of positioning SRS resources as support for NR positioning functions using CA.

[0035] Figure 1 An example of a positioning SRS configuration across multiple CCs is shown. The UE may be configured with three SRS resources across three different but adjacent CCs on the same symbol, and thus the UE shall transmit these SRS resources simultaneously. Each SRS resource may be included in an SRS resource set, and this SRS resource set may be associated with a specified uplink bandwidth part.

[0036] Figure 2 An example of exceeding the total transmission power is shown. Here, the UE may calculate the required transmission power based on a set of parameters such as path loss reference and defined power control rules / equations. According to the current rules, the required power may be calculated for each CC, but the sum of the calculated powers may exceed the total transmission power of the UE.

[0037] As an example, for single-cell operation with two uplink carriers, or for operation with CA, if the total UE transmission power for physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), physical random access channel (PRACH), or SRS transmission on the serving cell in the frequency range for a corresponding transmission occasion i may exceed where may be the linear value of R for transmission occasion i for FR1 and FR2 CMAX (i), the UE may allocate power to PUSCH, PUCCH, PRACH, and / or SRS transmission according to the following priority order (in descending order) such that the total UE transmission power for transmission on the serving cell in the frequency range is less than or equal to the exceeded - PRACH transmission on the primary cell (PCell); - PUCCH or PUSCH transmission with a higher priority index; - PUCCH or PUSCH transmission with the same priority index; - PUCCH transmission with hybrid automatic repeat request (HARQ)-acknowledgment (ACK) information, scheduling report (SR), link recovery request (LRR), and / or PUSCH transmission with HARQ- ACK information; - PUCCH transmission with CSI or PUSCH transmission with CSI; - PUSCH transmission without HARQ-ACK information or CSI and, for type 2 random access procedure, PUSCH transmission on the PCell; and - SRS of an aperiodic SRS having a higher priority than a semi-persistent and / or periodic SRS transmission, or PRACH transmission on a serving cell other than the PCell.

[0038] When determining the total transmission power of a serving cell in a frequency range in a symbol of a transmission occasion i, the UE may not include the power for a transmission that starts after the symbol of the transmission occasion i. The total transmission power in the symbols of a time slot may be defined as the sum of the linear values of the UE transmission powers for PUSCH, PUCCH, PRACH, and / or SRS in the symbols of the time slot.

[0039] In the case of the same priority order and for operation using carrier aggregation, the UE may prioritize the power allocation for transmissions on the primary cell of the master cell group (MCG) or the secondary cell group (SCG) over the power allocation for transmissions on the secondary cell. In the case of the same priority order and for operation using two UL carriers, the UE may prioritize the power allocation for transmissions on the carrier on which the UE is configured to transmit PUCCH. If PUCCH is not configured for any of the two UL carriers, the UE may prioritize the power allocation for transmissions on the non-supplementary UL carrier.

[0040] The above may be the prioritization rules for the UE to determine the transmission power in the case where the indicated or configured transmission power for the simultaneous transmission of (multiple) UL channels and / or UL RS exceeds the total transmission power. For SRS transmission, the defined rules may be for SRS transmission between different time domain behaviors.

[0041] The UE may determine the transmission power of the positioning SRS based on the following power control equation (1): If the UE transmits the SRS based on the configuration of the SRS-PosResourceSet on the active UL BWPb of the carrier f of the serving cell c, the UE may set the SRS transmission power P SRS,b,f,c (i,q s ) in the SRS transmission occasion i as:

[0042] The UE may determine the transmission power of the multiple-input multiple-output (MIMO) SRS based on the following power control equation (2): If the UE transmits the SRS using the SRS power control adjustment state with index l based on the configuration of the SRS-ResourceSet on the active UL BWPb of the carrier f of the serving cell c, the UE may set the SRS transmission power P SRS,b,f,c (i,q s ,l) in the SRS transmission occasion i as:

[0043] In the case of positioning SRS, it may target neighboring cells / TRPs, and the UE may need to allocate more power to transmit SRS. For carrier aggregation, the UE can simultaneously transmit multiple SRS resources on different CCs. Due to the limitation of the total transmission power, the UE may not be able to allocate the required transmission power on the second or third CC to transmit SRS. Instead, the UE allocates the required transmission power on the first CC to transmit SRS according to the first rule (e.g., the power control formula (1)). The required power means the power calculated from the SRS power control formula (1).

[0044] In an example for SRS CA, the UE can be configured with two SRS resources on the same symbol across two different CCs, where the two SRS resources are simultaneously transmitted to a remote neighboring base station. Then, according to the power allocation formula, if the UE allocates most of the power to the SRS resource on a CC, the UE may not be able to allocate sufficient transmission power to another SRS resource on a different CC. The neighboring base station can receive the first SRS resource sufficiently, but cannot receive the second SRS resource. This can be similar to non-CA-based positioning because the base station may not be able to obtain measurements by aggregating the two SRS resources. Therefore, a solution is needed to clarify the UE behavior.

[0045] Some example embodiments described herein may have various benefits and / or advantages to overcome the above-mentioned drawbacks. Currently, if the transmission power of SRS exceeds the total transmission power, the UE can attempt to transmit only a single SRS resource at the specified CC. The gNB cannot receive SRS across multiple CCs, and the gNB does not know why the UE transmits SRS only at that CC. To solve these problems, some example embodiments can provide the gNB with the opportunity to perform UL positioning measurements through CA measurements, which can significantly improve the accuracy. Therefore, some example embodiments discussed below relate to improvements in computer-related technologies.

[0046] Some example embodiments described herein configure the UE behavior such that when the calculated total available transmission power of the UE exceeds the total transmission power allocated to the UE, multiple SRS resources are transmitted on the same symbol(s) for CA-based UL positioning.

[0047] Generally, as used below, "total transmission power" may refer to the maximum power that the UE can use simultaneously; this value can be fixed and can depend on the UE's capabilities. Similarly, "calculated total power" may refer to the sum of the calculated powers of SRS resources on one or more component carriers. The calculated power of each SRS can be calculated by considering the configured factors (such as P0, M (the number of RBs of the configured SRS resource), α, PL(qd )'s current SRS power control formula.

[0048] Figure 3 FIG. shows an example of a signaling diagram describing UL and CA-based positioning. According to some example embodiments, as Figure 15 shown, UE 310 may be similar to UE 1520, and NE 320 and LMF 330 may be similar to NE 1510.

[0049] At step 301, UE 310, NE 320, and LMF 330 may initiate a positioning session.

[0050] At step 302, NE 320 may configure SRS resources for positioning across multiple CCs for CA-based positioning for UE 310. For example, UE 310 may be configured with positioning SRS resources on one CC, and UE 310 may also be configured with another positioning SRS resource on another CC, where these SRS resources may be configured on the same symbol. That is, UE 310 may transmit multiple SRSs across multiple CCs simultaneously.

[0051] At step 303, LMF 330 may request NE 320 to report UL positioning measurements obtained by CA.

[0052] At step 304, UE 310 may receive information on the transmission power associated with the sounding reference signal transmission. For example, when the total power calculated based on the first rule (e.g., power control formula (1)) exceeds the total transmission power, NE 320 may configure a second rule for UE 310. In this case, the information may include at least one parameter associated with the compensation of the percentage of path loss across multiple component carriers, e.g., a path loss reference for the configured SRS resources. The information may include a power control command from NE 320.

[0053] At step 305, if the calculated total power exceeds the total transmission power, the UE 310 may determine (i.e., calculate, adjust) the transmission power by following the rules configured at step 304. The power calculated by the UE 310 based on the power control equation / rule (e.g., the calculated total power) may be greater than the total transmission power allocated to the UE 310. In this case, based on the power control rule (e.g., the first rule), the UE 310 may not allocate the calculated / indicated / configured power to transmit multiple SRS resources across multiple CCs. Based on the path loss reference, the UE 310 may calculate the power to transmit the SRS at the CC. If multiple SRSs across multiple CCs are configured to be transmitted simultaneously at the same symbol, the calculated total power (e.g., the power calculated according to the power control equation) may exceed the total transmission power of the UE 310. For example, if K (> = 2) is the number of configured CCs, and the SRSs configured on these CCs are transmitted simultaneously, where each SRS is transmitted on each CC, the UE 310 may not follow the traditional rule to determine the SRS transmission power, where the UE 310 should calculate the transmission power from the path loss estimate and the configured parameters (e.g., the number of RBs of the configured SRS resource, the P of the power control equation (i.e., power control equation (1))) and α O_SRS,b,f,c and α SRS,b,f,c (q s ))).

[0054] In the case where the calculated total power allocated to the configured SRS resource according to the power control equation exceeds the total transmission power of the UE 310, for K SRS resources on K CCs (where K is an integer value greater than 1), the UE 310 may allocate the transmission power to the K CCs such that the power allocated to each CC can compensate for X% of the path loss estimate for SRS transmission on the K CCs. That is, the UE 310 may use the factor X instead of the configured α factor α SRS,b,f,c (q d )(e.g., the value of X may be predefined or initially indicated by the NE 320 via a power control command).

[0055] In some example embodiments, the power allocation between different CCs may not be equal, but the power allocation may be calculated to provide the same received power for the SRS resources on different CCs to effectively perform aggregating multiple SRS resources and extracting a single positioning measurement. If the estimated path loss of all CCs is the same, the UE 310 may allocate equal power to each CC for SRS transmission.

[0056] For the transmission of the SRS for positioning, the UE 310 may be instructed to target the transmission of the SRS to a remote neighboring cell. If the received power at the neighboring cell is too low, transmitting multiple SRSs across multiple CCs may not be desirable for the UE 310, as the neighboring cell may not be able to correctly receive and measure the positioning measurement / information based on the SRS transmitted via the CC. Therefore, it is crucial to compensate for the path loss at a certain level. Based on the configured X%, if the calculated total transmission power still exceeds the total transmission power, the UE 310 may decrease X until the calculated total power does not exceed the total power.

[0057] Therefore, at step 305, if the UE 310 determines that the calculated total power associated with at least one parameter (i.e., X) exceeds the total transmission power, the UE 310 may apply a reduced value of the parameter until the calculated total power does not exceed the total transmission power.

[0058] At step 306, the UE 310 may transmit the SRS to the NE 320 across multiple CCs based on the calculated transmission power.

[0059] At step 307, the NE 320 may measure the UL positioning measurement. For example, the NE 320 may measure the UL positioning measurement from the SRS transmitted across multiple CCs and may report the measurement to the LMF 330.

[0060] Figure 4 An example of a signaling diagram describing positioning based on UL and CA is shown. According to some example embodiments, as Figure 15 shown, the UE 420 may be similar to the UE 1520, and the NE 430, neighboring NE 440, and LMF 450 may be similar to the NE1510.

[0061] At step 401, the UE 420, NE 430, neighboring NE 440, and LMF 450 may initiate a positioning session.

[0062] At step 402, the LMF 450 may request the NE 430 to report the UL positioning measurement obtained by CA.

[0063] At step 403, the NE 430 may configure positioning SRS resources across K CCs for the UE 420 and a path loss reference RS for each SRS resource set.

[0064] At step 404, the NE 430 may transmit the path loss reference RS (e.g., SSB or PRS) to the UE 420.

[0065] At step 405, the UE 420 may measure the estimated path loss for each CC from the path loss reference RS.

[0066] At step 406, the UE 420 may receive information on the transmission power associated with the sounding reference signal transmission. For example, when the total power calculated based on the power control formula exceeds the total transmission power, the NE 430 may configure the UE 420 using UE behavior. That is, the NE 430 may transmit to the UE 420 information indicating N component carriers to select N CCs, where 1 ≤ N and N is an integer value. The UE 420 may select N component carriers from among K component carriers based on the information for calculating at least two transmission powers, where N < K and K is an integer value.

[0067] In some example embodiments, the NE 430 may configure criteria on how to select N consecutive CCs from among K CCs. For example, the information at step 406 may include downlink measurement scheme information for measuring signal strength values on multiple component carriers. The downlink measurement scheme information may indicate at least one of the following: reference signal received power, reference signal received quality, per-path reference signal received power, and signal-to-interference-plus-noise ratio. For example, if the downlink measurement scheme information indicates RSRP, the NE 430 may configure the UE 420 to measure the RSRP from the SSB or from the DL PRS resources for the configured CCs. The NE 430 may configure the UE 420 to select one CC showing the maximum RSRP and to select N - 1 consecutive CCs adjacent to the selected CC. Alternatively or additionally, the NE 430 may also configure the UE 420 to select the CCs showing the best RSRP from among the K CCs, where the selected CCs may be non-consecutive or consecutive. Alternatively or additionally, the NE 230 may also indicate the priority regarding the power allocation to the CCs according to the CC index (descending or ascending).

[0068] The NE 430 may configure the minimum number of CCs that the UE 420 should select in the case where the total transmission power calculated for the K CCs exceeds the maximum total transmission power of the UE 420. Generally, the calculated total transmission power may refer to the sum of the calculated transmission powers of multiple SRS transmissions; this value may be compared with the total transmission power that has been allocated to the UE.

[0069] At step 407, the UE 420 may be based at least on path loss, the number of RBs of the SRS resource, the configured parameter P O_SRS,b,f,c and α SRS,b,f,c (q s) to calculate the transmission power. For example, if the calculated total power exceeds the total transmission power, the UE 420 may select N (<K) CCs such that the transmission power for the selected CCs does not exceed the total transmission power, and the transmission power may be allocated by following the SRS power control formula.

[0070] In the case where the calculated total power allocated to the configured SRS resources according to the power control formula exceeds the total transmission power of the UE 420, for the SRS resources configured on K CCs, the UE 420 may select N (<K) CCs to transmit N (<K) SRSs such that the UE 420 can allocate the transmission power based on the path loss estimated at step 405 and / or the power control formula. In another embodiment, for the selected N CCs, the UE first allocates the transmission power according to the power control formula, and if the calculated total power for the selected N CCs is not equal to the total transmission power, the remaining available power is allocated to the N SRS resources based on the estimated path loss of the N CCs.

[0071] At step 408, the UE 420 may report one or more IDs of the selected CCs to the NE 430. At step 409, the NE 430 may transmit the selected CC IDs to the neighboring NE (NNE) 440. For example, the UE 420 may report the selected CC identifiers to the NE 430 or the NNE 440.

[0072] At step 410, the UE 420 may transmit SRS resources to the NE 430 and / or the NNE 440 across the selected N CCs.

[0073] At step 411, the NE 430 may measure UL positioning measurements, and at step 413, the NE 430 may report the UL positioning measurements to the LMF 450. For example, the NE 430 may measure UL positioning measurements from the SRS resources transmitted across multiple CCs and report the measurements to the LMF 450.

[0074] At step 412, the neighboring NE 440 may measure UL positioning measurements, and at step 414, the neighboring NE 440 may report the UL positioning measurements to the LMF 450. For example, the neighboring NE 440 may measure UL positioning measurements from the SRS resources transmitted across multiple CCs and may report the measurements to the LMF 430.

[0075] Figure 5 An example of a signaling diagram describing positioning based on UL and CA is shown. According to certain example embodiments, as Figure 15As shown, UE 520 can be similar to UE 1520, and NE 530 and LMF 540 can be similar to NE 1510.

[0076] At step 501, UE 520, NE 530, and LMF 540 can initiate a positioning session.

[0077] At step 502, LMF 540 can request NE 530 to report UL positioning measurements obtained by CA across K CCs.

[0078] At step 503, NE 530 can configure positioning SRS resources across K CCs for UE 520 and path loss reference RS for each SRS resource set.

[0079] At step 504, NE 530 can transmit path loss RS (e.g., SSB or PRS) to UE 520.

[0080] At step 505, UE 520 estimates the path loss for each CC from the path loss RS measurement.

[0081] At step 506, UE 520 can receive information on the transmission power related to the sounding reference signal transmission. For example, in the case where the total power calculated based on the power control formula exceeds the total transmission power, NE 530 can configure UE 520 using UE behavior. For example, UE 520 can be configured not to transmit SRS across K CCs. In this case, UE 520 can report the calculated power and / or the estimated path loss to NE 530.

[0082] At step 507, UE 520 can calculate the transmission power based on the estimated path loss and the power control formula.

[0083] At step 508, if the calculated power exceeds the total transmission power, UE 520 can report to NE 530 that UE 520 cannot transmit SRS resources across K CCs due to power limitations. At step 509, NE 530 can report to LMF 540 that due to the total power limitation of UE 520, NE 530 cannot obtain UL positioning measurements by CA from K CCs. NE 530 can transmit the calculated power and / or the reported estimated path loss value from UE 520 to LMF 540.

[0084] In the case where the calculated total power of the configured SRS resources allocated across K CCs according to the power control formula exceeds the total transmission power of the UE 520, the UE 520 may report to the NE 530 that the UE 520 cannot transmit multiple SRS resources across multiple K CCs for CA operation. For this SRS resource targeted at a specified TRP, due to power limitations, the NE 530 may attempt not to perform UL positioning based on CA.

[0085] At step 510, the LMF 540 may reconsider the positioning accuracy requirement.

[0086] At step 511, the LMF 540 may request the NE 530 to report UL positioning measurements obtained by CA across N (<K) CCs. In this case, the LMF 540 may request the NE 530 to send an indication such that the UE 520 will transmit the SRS on a single CC or only on N of the K CCs.

[0087] At step 512, the NE 530 may instruct the UE 520 to transmit the SRS across N CCs.

[0088] At step 513, the UE 520 may transmit the positioning SRS to the NE 530 across N CCs.

[0089] At step 514, the NE 530 may measure the UL positioning measurements.

[0090] At step 515, the NE 530 may report the UL positioning measurements to the LMF 540.

[0091] In some embodiments, steps 509 to 511 may be omitted. In this case, the NE 530 may determine the N component carriers on which the synchronous SRS transmission will be performed, and at step 512, the NE 530 may indicate the N component carriers. The other steps are the same as above.

[0092] Figure 6 An example of a signaling diagram depicting signaling for UL and CA-based positioning is shown. According to certain example embodiments, as Figure 15 shown, the UE 620 may be similar to the UE 1520, and the NE 630 and LMF 640 may be similar to the NE 1510.

[0093] The above embodiments discuss SRS resources dedicated for positioning purposes. However, SRS for MIMO can also be used for positioning. For CA-based positioning, MIMO SRS and positioning SRS can be used jointly. For example, UE 620 can be configured with MIMO SRS resources for channel estimation on one or more CCs. LMF 640 may need to estimate UE 620 with high accuracy based on UL-based positioning. LMF 640 can request that NE 630 provide SRS resources across multiple CCs to UE 620 for CA operation. NE 630 may know that UE 620 may already be configured with MIMO SRS resources, so NE 630 may be able to configure positioning SRS resources on another CC adjacent to the MIMO SRS resources.

[0094] In an example embodiment, SRS resources for MIMO and SRS resources for positioning can be configured on two different CCs respectively. If the calculated total power allocated to the configured SRS resources according to the power control formula exceeds the total transmission power of UE 420, then UE 420 may not follow the traditional power allocation rule, and at least UE 620 can attempt to allocate / distribute the available power to MIMO SRS and positioning SRS within the power budget, such that the received power at NE 430 can be similar between the SRS resources for MIMO and the SRS resources for positioning. UE 620 can be configured with different values for the power control parameters between MIMO SRS and positioning SRS.

[0095] At step 601, NE 630 can configure UE 620 with positioning MIMO SRS on a certain CC and a path loss reference RS for MIMO SRS.

[0096] At step 602, UE 620, NE 630, and LMF 640 can initiate a positioning session.

[0097] At step 603, LMF 640 can request NE 630 to report UL positioning measurements obtained by CA.

[0098] At step 604, NE 630 can configure UE 620 with positioning SRS on one or more certain CCs and a path loss reference RS for positioning SRS.

[0099] At step 605, NE 630 can transmit a path loss reference RS (SSB or PRS) to UE 620.

[0100] At step 606, the UE 620 may estimate the path loss for each CC from the path loss reference RS measurement. The UE 620 may be able to assume that the closed-loop power control parameter (h b,f,c (i,l)) is zero, where h b,f,c (i,l) is in the MIMO SRS power control equation of Equation (2) above. The configured factors and α SRS,b,f,c (q d ) may be different for the MIMO SRS resource set and the positioning SRS resource set. Additionally, the estimated path loss PL b,f,c (q d ) may be different because the configured path loss reference RSs are different, and the PL b,f,c (q d ) is included in the power control equation for SRS described above in Equation (2).

[0101] At step 607, the UE 620 may receive information on the transmission power related to the sounding reference signal transmission. For example, in the case where the sum of the transmission powers calculated for the MIMO SRS and the positioning SRS based on the power control equation exceeds the total transmission power, the NE 630 may configure the UE 620 using the behavior. For example, the NE 640 may configure the minimum power required to transmit the positioning SRS and / or the MIMO SRS per CC. Then, the NE 640 may transmit information indicating at least one minimum transmission power to the UE 620. When the UE 620 determines the transmission power for the SRS resources of a CC, if the available power to be allocated is less than the required minimum power, the UE 620 may not transmit the SRS, and the UE 620 may allocate the remaining available power to another SRS resource.

[0102] At step 608, the UE 620 may calculate the transmission powers for both the MIMO SRS and the positioning SRS resources based at least on the estimated path loss, the number of RBs, and the configured parameters α SRS,b,f,c (q d ), α SRS,b,f,c (q s ) and . For example, if the calculated total power exceeds the total transmission power, the UE 620 may adjust the configured power control parameters for both the MIMO and the positioning SRS such that the received power per RB may be similar.

[0103] The UE 620 may calculate a new α SRS,b,f,c (q d ), αSRS,b,f,c (q s ) and enable the NE 430 to receive similar power at each RB, where the sum of the power of the MIMO SRS and the positioning SRS is not greater than the total transmission power. For example, if the number of RBs occupied by the MIMO SRS resource and the positioning SRS resource is the same, the UE 620 can allocate the same amount of power between two different CCs.

[0104] At step 609, the UE 620 can transmit MIMO SRS and positioning SRS to the NE 630 via two or more CCs. The UE 620 can transmit only the SRS resources for which it can allocate the minimum power.

[0105] At step 610, the NE 630 can measure UL positioning measurements.

[0106] At step 611, the NE 630 can report the UL positioning measurements to the LMF 640.

[0107] Figure 7 Shows an example of a flowchart of a method that can be performed by a UE (e.g., Figure 15 the UE 1520 shown in ) according to various example embodiments. At step 701, the method can include initiating a positioning session.

[0108] At step 702, the method can include receiving, from an NE (e.g., Figure 15 the NE 1510 shown in ), a configuration of positioning SRS resources across multiple CCs for CA-based positioning. For example, the UE can be configured with positioning SRS resources on one CC, and the UE can also be configured with another positioning SRS resource on another CC, where these SRS resources can be configured on the same symbol. That is, the UE can transmit multiple SRSs across multiple CCs simultaneously.

[0109] At step 703, the method can include receiving, from the NE, information about the transmission power associated with the sounding reference signal transmission. For example, when the total power calculated based on a first rule (e.g., the power control equation (1)) exceeds the total transmission power, the UE can be configured with a second rule for the UE. In this case, the information can include at least one parameter associated with the compensation of the percentage of the path loss across multiple component carriers, e.g., the path loss reference for the configured SRS resources. The information can include a power control command from the NE.

[0110] At step 704, if the calculated total power exceeds the total transmission power, the method may include determining (i.e., calculating, adjusting) the transmission power by following the rules configured at step 703. The calculated power (e.g., the calculated total power) based on the power control equation / rule calculated by the UE may be greater than the total transmission power allocated to the UE. In this case, based on the power control rule (e.g., the first rule), the UE may not allocate the calculated / indicated / configured power for transmitting multiple SRS resources across multiple CCs. Based on the path loss reference, the UE may calculate the power for transmitting the SRS at the CC. If multiple SRSs across multiple CCs are configured to be transmitted simultaneously in the same symbol, the calculated power (e.g., the power calculated according to the power control equation) may exceed the total transmission power of the UE. For example, if K (> = 2) is the number of configured CCs and the SRSs configured on these CCs are transmitted simultaneously, where each SRS is transmitted on each CC, the UE may not follow the conventional rule for determining the SRS transmission power, where the UE should calculate the transmission power from the path loss estimate and the configured parameters (such as the number of RBs of the configured SRS resource and the power control equation (i.e., P of equation (1)) O_SRS,b,f,c and α SRS,b,f,c (q s ).

[0111] In the case where the calculated total power allocated to the configured SRS resources according to the power control equation exceeds the total transmission power of the UE, for K SRS resources on K CCs (where K is an integer value greater than 1), the UE may allocate the transmission power to the K CCs such that the power allocated to each CC may compensate for X% of the path loss estimate for SRS transmission on the K CCs. That is, the UE may use the factor X instead of the configured α factor α of the above equation (1) SRS,b,f,c (q d )(e.g., the value of X may be predefined or initially indicated by the NE via a power control command).

[0112] In some example embodiments, the power allocation between different CCs may not be equal, but the power allocation may be calculated to provide the same received power for the SRS resources on different CCs to effectively perform aggregating multiple SRS resources and extracting a single positioning measurement. If the estimated path loss of all CCs is the same, the UE may allocate equal power to each CC for SRS transmission.

[0113] For the transmission of the SRS for positioning, the UE may be instructed to target the transmission of the SRS to a remote neighboring cell. If the received power at the neighboring cell is too low, transmitting multiple SRSs across multiple CCs may not be desired for the UE, because the neighboring cell may not be able to correctly receive and measure the positioning measurement / information based on the SRS transmitted via the CC. Therefore, it is crucial to compensate for the path loss at a specific level. Based on the configured X%, if the calculated total transmission power still exceeds the total transmission power, the UE may reduce X until the calculated total power does not exceed the total power.

[0114] Therefore, at step 704, if the UE 310 determines that the calculated total power associated with at least one parameter (i.e., X) exceeds the total transmission power, the UE may apply a reduced value of the parameter until the calculated total power does not exceed the total transmission power.

[0115] At step 705, the method may include transmitting the SRS to the NE across multiple CCs based on the calculated transmission power.

[0116] Figure 8 An example of a flowchart of a method that may be performed by an NE (e.g., Figure 15 the NE 1510 shown) according to various example embodiments is shown. At step 801, the method may include initiating a positioning session.

[0117] At step 802, the method may include: configuring the UE (e.g., Figure 15 the UE 1520 shown) with positioning SRS resources across multiple CCs for CA-based positioning. For example, the UE may be configured with positioning SRS resources on one CC, and the UE may also be configured with another positioning SRS resource on another CC, where these SRS resources may be configured on the same symbol. That is, the UE may transmit multiple SRSs across multiple CCs simultaneously.

[0118] At step 803, the method may include receiving a request to report UL positioning measurements obtained by the CA.

[0119] At step 804, the method may include transmitting information on the transmission power associated with the sounding reference signal transmission. For example, when the calculated total power based on a first rule (e.g., the power control formula (1)) exceeds the total transmission power, the NE may configure a second rule for the UE. In this case, the information may include at least one parameter associated with the compensation of the percentage of the path loss across multiple component carriers, e.g., the path loss reference for the configured SRS resources. The information may include a power control command from the NE.

[0120] At step 805, the method may include receiving, from the UE, SRS on multiple CCs based on the calculated transmission power.

[0121] At step 806, the method may include measuring UL positioning measurements. For example, the NE may measure UL positioning measurements from the SRS transmitted across multiple CCs and may report the measurements to the LMF.

[0122] Figure 9 FIG. shows an example of a flowchart of a method that may be performed by a UE (e.g., Figure 15 the UE 1520 shown in )

[0123] At step 901, the method may include initiating a positioning session.

[0124] At step 902, the method may include receiving, from the NE (e.g., Figure 15 the NE 1510 shown in ), a configuration of positioning SRS resources across K CCs and path loss reference RSs per SRS resource set.

[0125] At step 903, the method may include receiving path loss reference RSs (e.g., SSB or PRS).

[0126] At step 904, the method may include measuring, from the path loss reference RSs, an estimated path loss for each CC.

[0127] At step 905, the method may include receiving information on the transmission power associated with the transmission of sounding reference signals. For example, when the total power calculated based on the power control equation exceeds the total transmission power, the NE may configure the UE using UE behavior. That is, the UE may receive information indicating N component carriers to select N CCs, where 1 ≤ N and N is an integer value. The UE may select N component carriers from among K component carriers based on the information used to calculate at least two transmission powers, where N < K and K is an integer value.

[0128] In some example embodiments, the NE may configure criteria on how to select N consecutive CCs out of K CCs. For example, the information at step 905 may include downlink measurement scheme information for measuring signal strength values on multiple component carriers. The downlink measurement scheme information may indicate at least one of the following: reference signal received power, reference signal received quality, per-path reference signal received power, and signal-to-interference-and-noise ratio. For example, if the downlink measurement scheme information indicates RSRP, the NE may configure the UE to measure the RSRP from the SSB or the DL PRS resources for the configured CC. The NE may configure the UE to select one CC that shows the maximum RSRP and select N - 1 consecutive CCs adjacent to the selected CC. Alternatively or additionally, the NE may also configure the UE to select the CCs that show the best RSRP among the K CCs, where the selected CCs may be non-consecutive or consecutive. Alternatively or additionally, the NE may also indicate the priority regarding the power allocation to the CCs according to the CC index (descending or ascending).

[0129] The NE may configure the minimum number of CCs that the UE should select in case the total transmission power calculated for the K CCs exceeds the maximum total transmission power of the UE. Generally, the calculated total transmission power may refer to the sum of the calculated transmission powers of multiple SRS transmissions; this value may be compared with the total transmission power that has been allocated to the UE.

[0130] At step 906, the method may include calculating the transmission power based at least on the path loss, the number of RBs of the SRS resource, the configured parameter P O_SRS,b,f,c and α SRS,b,f,c (q s ). For example, if the calculated total power exceeds the total transmission power, the UE may select N (< K) CCs such that the transmission power for the selected CCs does not exceed the total transmission power, and the transmission power may be allocated by following the SRS power control formula.

[0131] In case the calculated total power allocated to the configured SRS resources according to the power control formula exceeds the total transmission power of the UE, for the SRS resources configured on the K CCs, the UE may select N (< K) CCs to transmit N (< K) SRSs so that the UE may allocate the transmission power based on the path loss estimated at step 904 and / or the power control formula. In another embodiment, for the selected N CCs, the UE first allocates the transmission power according to the power control formula, and if the calculated total power for the selected N CCs is not equal to the total transmission power, the remaining available power is allocated to the N SRS resources based on the estimated path loss of the N CCs.

[0132] At step 907, the method may include reporting one or more IDs of the selected CCs to the NE. At 908, the method may include transmitting SRS resources to the NE across the selected N CCs.

[0133] Figure 10 FIG. shows an example of a flowchart of a method that may be performed by an NE (e.g., Figure 15 the NE 1510 shown in ) according to various example embodiments.

[0134] At step 1001, the method may include initiating a positioning session. <......> (The content from

[0135] to

[0139] seems to be incomplete or has some formatting issues in the original Chinese. Please check and correct it if possible for a more accurate translation. For now, the partial translation is as follows)At step 1002, the method may include receiving a request from the LMF (e.g., Figure 15 the NE 1510 shown in ) to report UL positioning measurements obtained by the CA.

[0136] At step 1003, the method may include transmitting positioning SRS resources across K CCs and the configuration of path loss reference RS for each SRS resource set to the UE (e.g., Figure 15 the UE 1520 shown in ).

[0137] At step 1004, the method may include transmitting path loss reference RS (e.g., SSB or PRS) to the UE.

[0138] At step 1005, the method may include transmitting information about the transmission power associated with the sounding reference signal transmission to the UE. For example, when the total power calculated based on the power control formula exceeds the total transmission power, the NE may configure the UE with UE behavior. That is, the NE may transmit information indicating N component carriers to select N CCs, where 1 ≤ N and N is an integer value. The UE may select N component carriers from K component carriers based on the information used to calculate at least two transmission powers, where N < K and K is an integer value.

[0139] In some example embodiments, the NE may configure criteria on how to select N consecutive CCs out of K CCs. For example, the information at step 1005 may include downlink measurement scheme information for measuring signal strength values on multiple component carriers. The downlink measurement scheme information may indicate at least one of the following: reference signal received power, reference signal received quality, per-path reference signal received power, and signal-to-interference-and-noise ratio. For example, if the downlink measurement scheme information indicates RSRP, the NE may configure the UE to measure the RSRP from the SSB or the DL PRS resources for the configured CC. The NE may configure the UE to select one CC showing the maximum RSRP and select N-1 consecutive CCs adjacent to the selected CC. Alternatively or additionally, the NE may also configure the UE to select the CCs showing the best RSRP among the K CCs, where the selected CCs may be non-consecutive or consecutive. Alternatively or additionally, the NE may also indicate the priority regarding the power allocation to the CCs according to the CC index (in descending or ascending order).

[0140] The NE may configure the minimum number of CCs that the UE should select in case the total transmission power calculated for the K CCs exceeds the maximum total transmission power of the UE. Generally, the calculated total transmission power may refer to the sum of the calculated transmission powers of multiple SRS transmissions; this value may be compared with the total transmission power that has been allocated to the UE.

[0141] At step 1006, the method may include receiving one or more IDs of the selected CCs from the UE. At step 1007, the method may include transmitting the selected CC IDs to a neighboring NE (e.g., Figure 15 the NE1510 shown in). For example, the NE may receive the selected CC identifiers from the UE.

[0142] At step 1008, the method may include receiving SRS resources from the UE across the selected N CCs.

[0143] At step 1009, the method may include measuring UL positioning measurements, and at step 1010, the method may include reporting the UL positioning measurements to the LMF. For example, the NE may measure the UL positioning measurements from the SRS resources transmitted across multiple CCs and report the measurements to the LMF.

[0144] Figure 11 Shows an example of a flowchart of a method that may be performed by a UE (e.g., Figure 15 the UE 1520 shown in).

[0145] At step 1101, the method may include initiating a positioning session.

[0146] At step 1102, the method may include receiving, from a NE (such as Figure 15 the NE 1510 shown in

[0147] ), a configuration of positioning SRS resources across K CCs and path loss reference RSs for each SRS resource set.

[0148] At step 1103, the method may include receiving, from the NE, path loss RSs (e.g., SSB or PRS).

[0149] At step 1104, the method may include estimating, from the path loss RS measurements, the path loss for each CC.

[0150] At step 1105, the method may include receiving, from the NE, information on the transmission power associated with the sounding reference signal transmission. For example, in the case where the total power calculated based on the power control equation exceeds the total transmission power, the NE may configure the UE using UE behavior. For example, the UE may be configured not to transmit SRS across K CCs. In this case, the UE may report the calculated power and / or the estimated path loss to the NE.

[0151] At step 1106, the method may include calculating the transmission power based on the estimated path loss and the power control equation.

[0152] At step 1107, if the calculated power exceeds the total transmission power, the method may include reporting to the NE that the UE cannot transmit SRS resources across K CCs due to power limitations.

[0153] At step 1108, the method may include receiving, from the NE, a request to transmit SRS across N CCs.

[0154] Figure 12 An example of a flowchart of a method that may be performed by a NE (such as Figure 15 the NE 1510 shown in

[0155] is shown. At step 1201, the method may include initiating a positioning session.

[0156] At step 1202, the method may include receiving, from an LMF (such as Figure 15 the NE 1510 shown in

[0157] ), a request to report UL positioning measurements obtained by CA across K CCs. Figure 15The UE 1520) shown in the figure transmits the configuration of the positioning SRS resources across K CCs and the path loss reference RS for each SRS resource set.

[0158] At step 1204, the method may include transmitting path loss RS (e.g., SSB or PRS) to the UE.

[0159] At step 1205, the method may include transmitting information on the transmission power associated with the sounding reference signal transmission. For example, in the case where the total power calculated based on the power control formula exceeds the total transmission power, the NE may configure the UE with UE behavior. For example, the UE may be configured not to transmit SRS across K CCs. In this case, the UE may report the calculated power and / or the estimated path loss to the NE.

[0160] At step 1206, if the calculated power exceeds the total transmission power, the method may include receiving a report that the UE cannot transmit SRS resources across K CCs due to power limitations. At step 1207, the method may include reporting to the LMF (e.g., Figure 15 the NE 1510) shown in the figure: Due to the total power limitation of the UE, the NE cannot obtain UL positioning measurements through CA from K CCs. The NE may transmit the calculated power and / or the reported estimated path loss value from the UE to the LMF.

[0161] In the case where the total power calculated for the configured SRS resources across K CCs according to the power control formula exceeds the total transmission power of the UE, the UE may report to the NE that the UE cannot transmit multiple SRS resources across multiple K CCs for CA operation. For this SRS resource targeted at a specified TRP, due to power limitations, the NE may attempt not to perform CA-based UL positioning.

[0162] At step 1208, the method may include receiving a request to report UL positioning measurements obtained through CA across N (<K) CCs. In this case, the LMF may request the NE to send an indication such that the UE will transmit SRS on a single CC or only on N of the K CCs.

[0163] At step 1209, the method may include instructing the UE to transmit SRS across N CCs.

[0164] At step 1210, the method may include receiving positioning SRS from the NE across N CCs.

[0165] At step 1211, the method may include measuring UL positioning measurements.

[0166] At step 1212, the method may include reporting UL positioning measurements to the LMF.

[0167] Figure 13 illustrates an example of a flowchart of a method that can be performed by a UE (e.g., Figure 15 the UE 1520 shown) according to various example embodiments.

[0168] At step 1301, the method may include receiving, from a NE (e.g., Figure 15 the NE 1510 shown), a configuration for positioning MIMO SRS on a certain CC and a path loss reference RS for the MIMO SRS.

[0169] At step 1302, the method may include initiating a positioning session.

[0170] At step 1303, the method may include receiving, from the NE, a configuration of positioning SRS on one or more CCs and a path loss reference RS for the positioning SRS.

[0171] At step 1304, the method may include receiving a path loss reference RS (SSB or PRS) from the NE.

[0172] At step 1305, the method may include estimating the path loss for each CC from the path loss reference RS measurement. The UE may be able to assume that the closed-loop power control parameter h b,f,c (i, l)) is zero, where h b,f,c (i, l) is in the MIMO SRS power control equation of the above equation (2). The configured factors and α SRS,b,f,c (q d ) for the MIMO SRS resource set and the positioning SRS resource set may be different. Additionally, the estimated path loss PL b,f,c (q d ) may be different because the configured path loss reference RS is different, and the PL b,f,c (q d ) is included in the power control equation for SRS described above in equation (2).

[0173] At step 1306, the method may include receiving information on the transmission power associated with the sounding reference signal transmission. For example, for the case where the sum of the calculated transmission powers for MIMO SRS and positioning SRS based on the power control formula exceeds the total transmission power, the NE may configure the UE using behavior. For example, the NE may configure the minimum power required to transmit positioning SRS and / or MIMO SRS per CC. Then, the NE 640 may transmit information indicating at least one minimum transmission power to the UE. When the UE determines the transmission power for the SRS resource of a CC, if the available power to be allocated is less than the required minimum power, the UE may not transmit the SRS, and the UE may allocate the remaining available power to another SRS resource.

[0174] At step 1307, the method may include calculating the transmission powers for both MIMO SRS and positioning SRS resources based at least on the estimated path loss, the number of RBs, and the configured parameters α SRS,b,f,c (q d ),α SRS,b,f,c (q s ). And For example, if the calculated total power exceeds the total transmission power, the UE may adjust the configured power control parameters for both MIMO and positioning SRS such that the received power per RB may be similar.

[0175] The UE may calculate new α SRS,b,f,c (q d ), α SRS,b,f,c (q s ) and such that the NE may receive similar power at each RB, where the sum power of MIMO SRS and positioning SRS is not greater than the total transmission power. For example, if the number of RBs occupied by MIMO SRS resources and positioning SRS resources is the same, the UE may allocate the same amount of power between two different CCs.

[0176] At step 1308, the method may include transmitting MIMO SRS and positioning SRS to the NE via two or more CCs. The UE may only transmit the SRS resources for which it can allocate the minimum power.

[0177] Figure 14 shows an example of a flowchart of a method that may be performed by an NE (such as Figure 15 the NE 1510 shown).

[0178] At step 1401, the method may include transmitting to the UE (such as Figure 15The UE 1520) shown transmits a configuration of positioning MIMO SRS on a certain CC and a path loss reference RS for MIMO SRS.

[0179] At step 1402, the method may include initiating a positioning session.

[0180] At step 1403, the method may include receiving, from an LMF (e.g., Figure 15 the NE 1510 shown in ) a request to report UL positioning measurements obtained by CA.

[0181] At step 1404, the method may include transmitting to the UE a configuration of positioning SRS on one or more CCs and a path loss reference RS for positioning SRS.

[0182] At step 1405, the method may include transmitting to the UE a path loss reference RS (SSB or PRS).

[0183] At step 1406, the method may include transmitting to the UE information on the transmission power associated with the sounding reference signal transmission. For example, in the case where the sum of the calculated transmission powers for MIMO SRS and positioning SRS based on a power control formula exceeds the total transmission power, the NE may configure the UE configuration using behavior. For example, the NE may configure the minimum power required to transmit positioning SRS and / or MIMO SRS per CC. Then, the NE may transmit to the UE 620 information indicating at least one minimum transmission power. When the UE determines the transmission power for the SRS resource of a CC, if the available power to be allocated is less than the required minimum power, the UE may not transmit the SRS, and the UE may allocate the remaining available power to another SRS resource.

[0184] At step 1407, the method may include receiving from the UE MIMO SRS and positioning SRS via two or more CCs. The NE may only receive the SRS resources for which it can allocate the minimum power.

[0185] At step 1408, the method may include measuring UL positioning measurements.

[0186] At step 1409, the method may include reporting the UL positioning measurements to the LMF.

[0187] Figure 15 An example of a system according to certain example embodiments is shown. In an example embodiment, the system may include multiple devices, such as, for example, the NE 1510 and / or the UE 1520.

[0188] NE 1510 can be one or more of a base station (e.g., 3G UMTS NodeB, 4G LTE evolved NodeB, or 5G NR next generation NodeB), serving gateway, server, and / or any other access node or a combination thereof.

[0189] NE 1510 may further include at least one gNB central unit (CU), which may be associated with at least one gNB distributed unit (DU). The at least one gNB-CU and the at least one gNB-DU may communicate via at least one F1 interface, at least one X n -C interface, and / or at least one NG interface via the fifth generation core (5GC).

[0190] UE 1520 may include one or more of the following: user equipment, mobile terminal, mobile device (such as a mobile phone, smart phone, personal digital assistant (PDA), tablet computer, or portable media player), digital camera, pocket camera, video game console, navigation unit (such as a global positioning system (GPS) device), desktop or laptop computer, single location device (such as a sensor or smart meter), or any combination thereof. Additionally, NE 1510 and / or UE 1520 may be one or more of a citizen broadband radio service device (CBSD).

[0191] NE 1510 and / or UE 1520 may include at least one processor, shown as 1511 and 1521 respectively. Processors 1511 and 1521 may be implemented by any computing or data processing device, such as a central processing unit (CPU), application specific integrated circuit (ASIC), or similar device. The processor may be implemented as a single controller or multiple controllers or processors.

[0192] At least one memory may be provided in one or more devices, as shown at 1512 and 1522. The memory may be fixed or removable. The memory may include instructions, computer program instructions, or computer code contained therein. Memories 1512 and 1522 may independently be any suitable storage device, such as a non-transitory computer-readable medium. As used herein, the term "non-transitory" may correspond to a limitation of the medium itself (i.e., tangible, rather than a signal), rather than a limitation on data storage persistence (e.g., random access memory (RAM) versus read-only memory (ROM)). A hard disk drive (HDD), random access memory (RAM), flash memory, or other suitable memory may be used. The memory may be combined on a single integrated circuit as a processor, or may be separate from one or more processors. Additionally, the computer program instructions stored in the memory and executable by the processor may be any suitable form of computer program code, e.g., compiled or interpreted computer programs written in any suitable programming language.

[0193] Processor 1511 and processor 1521, memories 1512 and 1522, and any subset thereof may be configured to provide components corresponding to Figures 3 to 6 the respective boxes. Although not shown, the device may also include positioning hardware (such as GPS or microelectromechanical systems (MEMS) hardware), which may be used to determine the location of the device. Other sensors are also permitted and may be configured to determine location, altitude, speed, orientation, etc., such as barometers, compasses, etc.

[0194] As Figure 15 shown, transceivers 1513 and 1523 may be provided, and one or more devices may also include at least one antenna, as shown at 1514 and 1524, respectively. The device may have many antennas, such as an antenna array configured for MIMO communication, or multiple antennas for multiple RATs. For example, other configurations of these devices may be provided. Transceivers 1513 and 1523 may be transmitters, receivers, both transmitters and receivers, or may be units or devices that may be configured for both transmitting and receiving.

[0195] The memory and computer program instructions may be configured with a processor for a particular device to cause a hardware device such as a UE to perform any of the processes described above (i.e., Figures 3 to 6 ). Thus, in certain example embodiments, a non-transitory computer-readable medium may be encoded with computer instructions that, when executed in hardware, perform one of the processes described herein. Alternatively, certain example embodiments may be executed entirely in hardware.

[0196] In certain example embodiments, the apparatus may include circuitry configured to perform Figures 3 to 6 any of the processes or functions shown therein. As used in this application, the term "circuitry" may refer to one or more or all of the following: (a) only hardware circuit implementations (such as implementations only in analog / or digital circuitry) and (b) combinations of hardware circuits and software, such as, where applicable: (i) combinations of (one or more) analog and / or digital hardware circuits with software / firmware, and (ii) any portions of (one or more) hardware processors with software (including (one or more) digital signal processors, software, and (one or more) memories that work together to cause a device such as a mobile phone or server to perform various functions) and (c) (one or more) hardware circuits and / or (one or more) processors, such as (one or more) microprocessors or portions of (one or more) microprocessors, which require software (e.g., firmware) for operation, but where the software may not be present when not needed. This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also encompasses implementations that are only hardware circuits or processors (or multiple processors) or portions of hardware circuits or processors with their accompanying software and / or firmware. For example, if applicable to a particular claim element, the term circuitry also encompasses a baseband integrated circuit or a processor integrated circuit for a mobile device or a similar integrated circuit in a server, a cellular network device, or other computing or network devices.

[0197] Figure 16 An example of a 5G network and system architecture according to certain example embodiments is shown. Shown are those that can be implemented as part of a network device or dedicated hardware, as a network device itself or dedicated hardware, as software operating as a virtual function for a network device or dedicated hardware. Figure 16 The NEs and UEs shown therein may be similar to NE 1510 and UE 1520, respectively. A User Plane Function (UPF) may provide services such as mobility within and between RATs, routing and forwarding of data packets, inspection of packets, user plane Quality of Service (QoS) handling, buffering of downlink packets, and / or triggering of downlink data notifications. An Application Function (AF) mainly communicates with the core network to facilitate application usage of traffic routing and interacts with the policy framework.

[0198] According to certain example embodiments, processor 1511 and processor 1521, as well as memories 1512 and 1522, may be included in or may form part of a processing circuitry or a control circuitry. Additionally, in some example embodiments, transceiver 1513 and transceiver 1523 may be included in or may form part of a transceiver circuitry.

[0199] In some example embodiments, a device (e.g., NE 1510 and / or UE 1520) may include components for performing the methods, procedures, or any variations discussed herein. Examples of such components may include one or more processors, memories, controllers, transmitters, receivers, and / or computer program code for causing the execution of operations.

[0200] In various example embodiments, device 1510 may be controlled by memory 1512 and processor 1511 to transmit at least one first rule of the network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule to a user equipment.

[0201] Certain example embodiments may relate to a device that includes components for performing any of the methods described herein, including, for example, components for transmitting at least one first rule of the network's transmission power allocation and at least one second rule of the network's transmission power allocation different from the at least one first rule to a user equipment.

[0202] In various example embodiments, device 1520 may be controlled by memory 1522 and processor 1521 to receive information on the transmission power related to the transmission of sounding reference signals; determine whether the calculated total power for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds the total transmission power; and calculate at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0203] Certain example embodiments may relate to a device that includes components for performing any of the methods described herein, including, for example, components for receiving information on the transmission power related to the transmission of sounding reference signals; components for determining whether the calculated total power for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds the total transmission power; and components for calculating at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

[0204] The features, structures, or characteristics described in the exemplary embodiments throughout this specification may be combined in any suitable manner in one or more exemplary embodiments. For example, the phrases "various embodiments", "certain embodiments", "some embodiments", or other similar language used throughout this specification refer to the fact that the particular features, structures, or characteristics described in connection with the embodiments may be included in at least one exemplary embodiment. Thus, the phrases "in various embodiments", "in certain embodiments", "in some embodiments", or other similar language that appear throughout this specification do not necessarily all refer to the same set of exemplary embodiments, and the described features, structures, or characteristics may be combined in any suitable manner in one or more exemplary embodiments.

[0205] As used herein, "at least one of the following: <list of two or more elements>" and "at least one of <list of two or more elements>" and similar phrases, where the list of two or more elements is joined by "and" or "or", mean at least any one of the elements, or at least any two or more of the elements, or at least all of the elements.

[0206] Additionally, if desired, the above different functions or processes may be performed in a different order and / or simultaneously with each other. Further, if desired, one or more of the described functions or processes may be optional or may be combined. Accordingly, the above description should be regarded as illustrative of the principles and teachings of certain exemplary embodiments and not as a limitation thereof.

[0207] Those of ordinary skill in the art will readily understand that the exemplary embodiments described above may be practiced with processes in a different order and / or with hardware elements in configurations different from the disclosed configurations. Thus, although some embodiments have been described based on these exemplary embodiments, it will be apparent to those skilled in the art that certain modifications, variations, and alternative constructions will be apparent while remaining within the spirit and scope of the exemplary embodiments.

[0208] Partial Glossary

[0209] 3GPP Third Generation Partnership Project

[0210] 5G Fifth Generation

[0211] 5GC Fifth Generation Core

[0212] 6G Sixth Generation

[0213] ACK Acknowledgment

[0214] AF Application Function

[0215] ASIC Application Specific Integrated Circuit

[0216] BWP Bandwidth Part

[0217] CA Carrier Aggregation

[0218] CBSD Citizen Broadband Radio Service Device

[0219] CC Component Carrier

[0220] CPU Central Processing Unit

[0221] CSI Channel State Information

[0222] CU Centralized Unit

[0223] dBm Decibel-milliwatt

[0224] DC Dual Connectivity

[0225] DL Downlink

[0226] DU Distributed Unit

[0227] eMBB Enhanced Mobile Broadband

[0228] eNB Evolved Node B

[0229] FR Frequency Range

[0230] gNB Next Generation Node B

[0231] GPS Global Positioning System

[0232] HARQ Hybrid Automatic Repeat Request

[0233] HDD Hard Disk Drive

[0234] IoT Internet of Things

[0235] LMF Location Management Function

[0236] LPP LTE Positioning Protocol

[0237] LRR Link Recovery Request

[0238] LTE Long Term Evolution

[0239] LTE-A Long Term Evolution Advanced

[0240] MCG Master Cell Group

[0241] MEMS Micro-Electro-Mechanical Systems

[0242] MIMO Multiple Input Multiple Output

[0243] mMTC Massive Machine Type Communication

[0244] NE Network Entity

[0245] NG Next Generation

[0246] NG-eNB Next Generation evolved Node B

[0247] NG-RAN Next Generation Radio Access Network

[0248] NR New Radio

[0249] PDA Personal Digital Assistant

[0250] PDCCH Physical Downlink Control Channel

[0251] PDSCH Physical Downlink Shared Channel

[0252] PFL Positioning Frequency Layer

[0253] PRACH Physical Random Access Channel

[0254] PRS Positioning Reference Signal

[0255] PUCCH Physical Uplink Control Channel

[0256] PUSCH Physical Uplink Shared Channel

[0257] QoS Quality of Service

[0258] RAM Random Access Memory

[0259] RAN Radio Access Network

[0260] RAT Radio Access Technology

[0261] RF Radio Frequency

[0262] ROM Read Only Memory

[0263] RRM Radio Resource Management

[0264] RS Reference Signal

[0265] RSRP Reference Signal Received Power

[0266] RSTD Reference Signal Time Difference

[0267] RTOA Relative Time of Arrival

[0268] Rx Receiver

[0269] SCG Secondary Cell Group

[0270] SR Scheduling Report

[0271] SRS Sounding Reference Signal

[0272] SRS Sounding Reference Signal

[0273] TDOA - Time Difference of Arrival

[0274] TRP - Transmission and Reception Point

[0275] TS - Technical Specification

[0276] Tx - Transmission

[0277] UE - User Equipment

[0278] UL - Uplink

[0279] UMTS - Universal Mobile Telecommunications System

[0280] UPF - User Plane Function

[0281] URLLC - Ultra - Reliable and Low - Latency Communication

[0282] UTRAN - Universal Mobile Telecommunications System Terrestrial Radio Access Network

[0283] WLAN - Wireless Local Area Network

Claims

1. A device comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: receiving transmission power information associated with a sounding reference signal transmission; determining whether a total power calculated for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmit power; as well as When the calculated total power exceeds the total transmission power, at least two transmission powers for the at least two sounding reference signal resources are calculated based on the information. 2 . The apparatus of claim 1 , wherein the information comprises at least one parameter associated with compensation for a percentage of path loss across the plurality of component carriers.

3. The apparatus of claim 2, wherein the at least one memory and the instructions, when the instructions are executed by the at least one processor, further cause the apparatus to at least: Upon determining that the calculated total power associated with the at least one parameter exceeds the total transmission power, a reduced value of the parameter is applied until the calculated total power does not exceed the total transmission power.

4. The apparatus of claim 1 , wherein the at least one memory and the instructions, when the instructions are executed by the at least one processor, further cause the apparatus to at least: Selecting N component carriers from K component carriers for calculating the transmission power of the at least one SRS resource on the component carriers, wherein N<K, K is an integer value, The information indicates N component carriers to be used, where 1≤N and N is an integer value. The apparatus according to claim 4 , wherein the information comprises index information indicating a priority order of the plurality of component carriers. 6 . The apparatus according to claim 4 , wherein the information comprises downlink measurement scheme information configured to measure signal strength values of downlink reference signals on the plurality of component carriers. 7 . The apparatus according to claim 6 , wherein the downlink measurement scheme information indicates at least one of: a reference signal received power, a reference signal received quality, and a signal to interference and noise ratio.

8. The apparatus of claim 1 , wherein the at least one memory and the instructions, when the instructions are executed by the at least one processor, further cause the apparatus to at least: Reporting to a network entity that the apparatus cannot transmit the at least one sounding reference signal resource across the plurality of component carriers because the calculated total power exceeds the total transmit power. 9 . The apparatus of claim 1 , wherein the information indicates at least one minimum transmission power used to transmit the at least one sounding reference signal resource per component carrier.

10. The apparatus of claim 1 , wherein the at least one memory and the instructions, when the instructions are executed by the at least one processor, further cause the apparatus to at least: A minimum number of component carriers configured by the network entity is selected.

11. The apparatus according to claim 10, wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the apparatus to at least: select a component carrier associated with the maximum reference signal received power; and select a number of consecutive component carriers adjacent to the selected component carrier and one less than the minimum number.

12. The apparatus according to claim 10, wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the apparatus to at least: select the minimum number of component carriers associated with the highest reference signal received power among a predefined number of component carriers.

13. The apparatus according to claim 1, wherein the apparatus is configured to transmit the minimum transmission power of the at least one sounding reference signal resource per component carrier.

14. An apparatus, comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: transmit to a user equipment at least one first rule of transmission power allocation of a network and at least one second rule of transmission power allocation of the network different from the at least one first rule.

15. The apparatus according to claim 14, wherein the information includes at least one parameter associated with compensation for a percentage of path loss across a plurality of component carriers.

16. The apparatus according to claim 14, wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the apparatus to at least: receive from the user equipment an indication that the user equipment cannot transmit the at least one sounding reference signal resource across the plurality of component carriers because a calculated total power exceeds a total transmission power.

17. The apparatus according to claim 14, wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the apparatus to at least: transmit to the user equipment an indication of the minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

18. The apparatus according to any one of claims 14 to 17, wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the apparatus to at least: receive from the user equipment one or more of the at least one sounding reference signal resource, and the apparatus is capable of allocating the minimum transmission power to the at least one sounding reference signal resource.

19. An apparatus, comprising: means for receiving information on transmission power related to sounding reference signal transmission; means for determining whether a total power calculated for at least two sounding reference signal resources configured on the same symbol across a plurality of component carriers exceeds a total transmission power; and means for calculating at least two transmission powers for the at least two sounding reference signal resources based on the information when the calculated total power exceeds the total transmission power.

20. The apparatus according to claim 19, wherein the information includes at least one parameter associated with compensation for a percentage of path loss across the plurality of component carriers.

21. The apparatus according to claim 20, further comprising: means for applying a reduced value of the parameter until the calculated total power does not exceed the total transmission power when it is determined that the calculated total power associated with the at least one parameter exceeds the total transmission power.

22. The apparatus according to claim 19, further comprising: means for selecting N component carriers out of K component carriers for calculating the transmission power of the at least one SRS resource on the component carriers, where N < K and K is an integer value, wherein the information indicates the N component carriers to be used, where 1 ≤ N and N is an integer value.

23. The apparatus according to claim 22, wherein the information includes index information indicating a priority order of the plurality of component carriers.

24. The apparatus according to claim 22, wherein the information includes downlink measurement scheme information configured to measure signal strength values of downlink reference signals on the plurality of component carriers.

25. The apparatus according to claim 24, wherein the downlink measurement scheme information indicates at least one of the following: reference signal received power, reference signal received quality, and signal-to-interference-and-noise ratio.

26. The apparatus according to claim 19, further comprising: means for reporting to a network entity that the apparatus cannot transmit the at least one sounding reference signal resource across the plurality of component carriers because the calculated total power exceeds the total transmission power.

27. The apparatus according to claim 19, wherein the information indicates at least one minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

28. The apparatus according to claim 19, further comprising: means for selecting a minimum number of component carriers configured by the network entity.

29. The apparatus according to claim 28, further comprising: means for selecting a component carrier associated with the maximum reference signal received power; and means for selecting a number of consecutive component carriers adjacent to the selected component carrier and one less than the minimum number.

30. The apparatus according to claim 28, further comprising: means for selecting the minimum number of component carriers associated with the highest reference signal received power among a predefined number of component carriers.

31. The apparatus according to claim 19, wherein the apparatus is configured with a minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

32. An apparatus, comprising: means for transmitting to a user equipment at least one first rule of transmission power allocation of a network and at least one second rule of transmission power allocation of the network different from the at least one first rule.

33. The apparatus according to claim 32, wherein the information includes at least one parameter associated with compensation for a percentage of path loss across multiple component carriers.

34. The apparatus according to claim 32, further comprising: means for receiving from the user equipment an indication that the user equipment cannot transmit the at least one sounding reference signal resource across the multiple component carriers because a calculated total power exceeds a total transmission power.

35. The apparatus according to claim 32, further comprising: transmitting to the user equipment an indication of a minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

36. The apparatus according to any one of claims 32 to 35, further comprising: means for receiving from the user equipment one or more of the sounding reference signal resources in the at least one sounding reference signal resource, the apparatus being capable of allocating the minimum transmission power to the at least one sounding reference signal resource.

37. A method, comprising: receiving, by a user equipment, information on a transmission power related to sounding reference signal transmission; determining whether a total power calculated for at least two sounding reference signal resources configured on the same symbol across multiple component carriers exceeds a total transmission power; and when the calculated total power exceeds the total transmission power, calculating at least two transmission powers for the at least two sounding reference signal resources based on the information.

38. The method according to claim 37, wherein the information includes at least one parameter associated with compensation for a percentage of path loss across the multiple component carriers.

39. The method according to claim 38, further comprising: when determining that the calculated total power associated with the at least one parameter exceeds the total transmission power, applying a reduced value of the parameter until the calculated total power does not exceed the total transmission power.

40. The method according to claim 37, further comprising: selecting N component carriers from K component carriers for calculating a transmission power of the at least one SRS resource on the component carriers, where N < K and K is an integer value, wherein the information indicates the N component carriers to be used, where 1 ≤ N and N is an integer value.

41. The method according to claim 40, wherein the information includes index information indicating a priority order of the multiple component carriers.

42. The method according to claim 40, wherein the information includes downlink measurement scheme information configured to measure signal strength values of downlink reference signals on the multiple component carriers.

43. The method according to claim 42, wherein the downlink measurement scheme information indicates at least one of the following: reference signal received power, reference signal received quality, and signal-to-interference-plus-noise ratio.

44. The method according to claim 38, further comprising: reporting to a network entity that the apparatus cannot transmit the at least one sounding reference signal resource across the multiple component carriers because the calculated total power exceeds the total transmission power.

45. The method according to claim 38, wherein the information indicates at least one minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

46. The method according to claim 38, further comprising: selecting a minimum number of component carriers configured by the network entity.

47. The method according to claim 46, further comprising: selecting a component carrier associated with a maximum reference signal received power; and selecting a number of consecutive component carriers adjacent to the selected component carrier and one less than the minimum number.

48. The method according to claim 46, further comprising: selecting the minimum number of component carriers associated with the highest reference signal received power among a predefined number of component carriers.

49. The method according to claim 37, wherein the user equipment is configured with a minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

50. A method, comprising: transmitting to a user equipment at least one first rule of a transmission power allocation of a network and at least one second rule of the transmission power allocation of the network different from the at least one first rule.

51. The method according to claim 50, wherein the information comprises at least one parameter associated with compensation of a percentage of path loss across a plurality of component carriers.

52. The method according to claim 50, further comprising: receiving from the user equipment an indication that the user equipment cannot transmit the at least one sounding reference signal resource across the plurality of component carriers because a calculated total power exceeds a total transmission power.

53. The method according to claim 50, further comprising: transmitting to the user equipment an indication of a minimum transmission power for transmitting the at least one sounding reference signal resource per component carrier.

54. The method according to any one of claims 50 to 53, further comprising: receiving from the user equipment one or more sounding reference signal resources of the at least one sounding reference signal resource, the device being capable of allocating the minimum transmission power to the at least one sounding reference signal resource.

55. A non-transitory computer-readable medium comprising program instructions that, when executed by a device, cause the device to perform at least the method according to any one of claims 37 to 54.

56. A device comprising circuitry configured to perform the method according to any one of claims 37 to 54.

57. A computer program comprising instructions that, when executed by a device, cause the device to perform the method according to any one of claims 37 to 54.

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