Uplink reference signal prediction

Abstract

Systems, methods, apparatus, and computer program products for predicting uplink reference signals are provided. One method may include: receiving a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity; performing the first set of one or more SRS transmissions during the first time window; and receiving from the network entity an SRS indication of one or more resources indicating the second SRS resource set.

Description

Technical Field

[0001] Some example embodiments may generally relate to mobile or wireless telecommunications systems, such as 3GPP Long Term Evolution (LTE), 5G Radio Access Technology (RAT), New Radio (NR) Access Technology, 6G, and / or other communication systems. For example, some example embodiments may relate to systems and / or methods for predicting uplink reference signals. Background Technology

[0002] Examples of mobile or wireless telecommunications systems can include radio frequency (RF) 5G RATs, Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN), Evolved LTE UTRAN (E-UTRAN), LTE-Advanced (LTE-A), LTE-APro, NR access technologies, and / or the MulteFire Alliance. 5G radio systems refer to next-generation (NG) 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 radios. NR is expected to support service categories such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). NR is expected to enable extreme broadband, ultra-robust, low-latency connectivity, and massive networking to support the Internet of Things (IoT). Next-generation radio access network (NG-RAN) represents a radio access network (RAN) for 5G that provides radio access for NR, LTE, and LTE-A. Note that in 5G, a node that provides radio access to user equipment (e.g., a node B similar to Node B in UTRAN or an evolved Node B (eNB) in LTE) can be called a next-generation Node B (gNB) when built on an NR radio, and a next-generation eNB (NG-eNB) when built on an E-UTRA radio. Summary of the Invention

[0003] According to some example embodiments, a method may include: receiving a probe reference signal (SRS configuration) from a network entity, which includes at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity. The method may further include: performing the first set of one or more SRS transmissions on the first SRS resource set during the first time window. The method may further include: receiving an SRS indication from the network entity indicating one or more resources of the second SRS resource set.

[0004] According to certain example embodiments, an apparatus may include: components for receiving a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity. The apparatus may further include: components for performing the first set of one or more SRS transmissions on the first SRS resource set during the first time window. The apparatus may further include: components for receiving from the network entity an SRS indication of one or more resources indicating the second SRS resource set.

[0005] According to various example embodiments, a non-transient computer-readable medium may include program instructions that, when executed by a device, cause the device to perform at least one method. The method may include: receiving a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity. The method may further include: performing the first set of one or more SRS transmissions on the first SRS resource set during the first time window. The method may further include: receiving an SRS indication from the network entity indicating one or more resources of the second SRS resource set.

[0006] According to some example embodiments, a computer program product can perform a method. The method may include: receiving a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity. The method may further include: performing the first set of one or more SRS transmissions on the first SRS resource set during the first time window. The method may further include: receiving an SRS indication from the network entity indicating one or more resources of the second SRS resource set.

[0007] According to some 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 a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be paused; or a second SRS resource set to be indicated by an SRS indication from the network entity. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to perform the first set of one or more SRS transmissions on the first SRS resource set at least during the first time window. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to receive an SRS indication from the network entity indicating one or more resources of the second SRS resource set.

[0008] According to various example embodiments, an apparatus may include receiving circuitry configured to perform a configuration for receiving a probe reference signal (SRS) from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity. The apparatus may also include transmitting circuitry configured to perform the first set of one or more SRS transmissions on the first SRS resource set during the first time window. The apparatus may also include receiving circuitry configured to perform an SRS indication from the network entity indicating one or more resources of the second SRS resource set.

[0009] According to some example embodiments, a method may include: sending a Sounding Reference Signal (SRS) configuration to a user equipment (UE), the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions from the UE will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication. The method may further include: during the first time window, receiving the first set of one or more SRS transmissions from the UE on the first SRS resource set, and measuring the first set of one or more SRS transmissions. The method may further include: based on the measurement, performing an SRS resource prediction.

[0010] According to certain example embodiments, an apparatus may include: components for transmitting a sounding reference signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which one or more SRS transmissions from the user equipment will be performed; a first SRS resource set on which the first one or more SRS transmissions will be performed during the first time window; a second time window during which the first one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication. The apparatus may further include: components for receiving the first one or more SRS transmissions from the user equipment on the first SRS resource set during the first time window and measuring the first one or more SRS transmissions. The apparatus may further include: components for performing SRS resource prediction based on the measurement.

[0011] According to various example embodiments, a non-transient computer-readable medium may include program instructions that, when executed by a device, cause the device to perform at least one method. The method may include: sending a sounding reference signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions from the user equipment will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be paused; or a second SRS resource set to be indicated by an SRS indication. The method may further include: during the first time window, receiving the first set of one or more SRS transmissions from the user equipment on the first SRS resource set, and measuring the first set of one or more SRS transmissions. The method may further include: based on the measurement, performing an SRS resource prediction.

[0012] According to some example embodiments, a computer program product can perform a method. The method may include: sending a Sounding Reference Signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions from the user equipment will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be paused; or a second SRS resource set to be indicated by an SRS indication. The method may further include: during the first time window, receiving the first set of one or more SRS transmissions from the user equipment on the first SRS resource set, and measuring the first set of one or more SRS transmissions. The method may further include: based on the measurement, performing an SRS resource prediction.

[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 a probe reference signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which one or more SRS transmissions from the user equipment are to be performed; a first SRS resource set on which the first one or more SRS transmissions are to be performed during the first time window; a second time window during which the first one or more SRS transmissions are to be paused; or a second SRS resource set to be indicated by an SRS indication. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least: receive one or more SRS transmissions from the user equipment on the first SRS resource set during the first time window, and measure the first one or more SRS transmissions. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least: perform an SRS resource prediction based on the measurement.

[0014] According to various example embodiments, an apparatus may include transmitting circuitry configured to perform a probe reference signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which one or more SRS transmissions from the user equipment are to be performed; a first SRS resource set on which the first one or more SRS transmissions are to be performed during the first time window; a second time window during which the first one or more SRS transmissions are to be suspended; or a second SRS resource set to be indicated by an SRS indication. The apparatus may further include receiving and measuring circuitry configured to receive one or more SRS transmissions from the user equipment on the first SRS resource set during the first time window and to measure the first one or more SRS transmissions. The apparatus may further include prediction circuitry configured to perform prediction of SRS resources based on the measurement.

[0015] According to some example embodiments, a method may include: receiving a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of the following: a first configuration for performing one or more SRS transmissions to the network entity during a first time window; or a second configuration for suspending the first or more SRS transmissions during a second time window. The method may further include: receiving from the network entity a first command for activating at least one of the first or second configurations. The method may further include: in response to the first command, performing one or more SRS transmissions to the network entity during the first time window, and suspending the first or more SRS transmissions during the second time window.

[0016] According to a specific example embodiment, an apparatus may include: components for receiving a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of: a first configuration for performing one or more SRS transmissions to the network entity during a first time window; or a second configuration for suspending the first or more SRS transmissions during a second time window. The apparatus may further include: components for receiving from the network entity a first command for activating at least one of the first or second configurations. The apparatus may further include: components for performing one or more SRS transmissions to the network entity during the first time window in response to the first command, and suspending the first or more SRS transmissions during the second time window.

[0017] According to various example embodiments, a non-transient computer-readable medium may include program instructions that, when executed by a device, cause the device to perform at least one method. The method may include: receiving a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of: a first configuration for performing one or more SRS transmissions to the network entity during a first time window; or a second configuration for suspending the first or more SRS transmissions during a second time window. The method may further include: receiving a first command from the network entity for activating at least one of the first or second configurations. The method may further include: in response to the first command, performing one or more SRS transmissions to the network entity during the first time window, and suspending the first or more SRS transmissions during the second time window.

[0018] According to some example embodiments, a computer program product can perform a method. The method may include: receiving a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of: a first configuration for performing one or more SRS transmissions to the network entity during a first time window; or a second configuration for suspending the first group of one or more SRS transmissions during a second time window. The method may further include: receiving a first command from the network entity for activating at least one of the first configuration or the second configuration. The method may further include: in response to the first command, performing one or more SRS transmissions to the network entity during the first time window, and suspending the first group of one or more SRS transmissions during the second time window.

[0019] According to some 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 a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of: a first configuration for performing one or more SRS transmissions to the network entity during a first time window; or a second configuration for suspending the first or more SRS transmissions during a second time window. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least: receive a first command from the network entity for activating at least one of the first or second configurations. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least:, in response to the first command, perform one or more SRS transmissions to the network entity during the first time window, and suspend the first or more SRS transmissions during the second time window.

[0020] According to various example embodiments, an apparatus may include receiving circuitry configured to perform a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of the following: a first configuration for performing one or more SRS transmissions to the network entity during a first time window; or a second configuration for pausing the first or more SRS transmissions during a second time window. The apparatus may also include receiving circuitry configured to perform a first command from the network entity for activating at least one of the first or second configurations. The apparatus may further include transmission and pause circuitry configured to, in response to the first command, perform one or more SRS transmissions to the network entity during the first time window, and pause the first or more SRS transmissions during the second time window.

[0021] According to some example embodiments, a method may include: sending a first sounding reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of the following: a first configuration for performing a first group of one or more SRS transmissions to the device during a first time window; or a second configuration for suspending the first group of one or more SRS transmissions during a second time window. The method may further include: sending a first command to the user equipment for activating at least one of the first configuration or the second configuration. The method may further include: receiving the first group of one or more SRS transmissions from the user equipment during the first time window, and measuring the first group of one or more SRS transmissions. The method may further include: performing SRS prediction based on the measurement during the second time window.

[0022] According to some example embodiments, an apparatus may include: components for transmitting a first sounding reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of: a first configuration for performing a first group of one or more SRS transmissions to the apparatus during a first time window; or a second configuration for suspending the first group of one or more SRS transmissions during a second time window. The apparatus may further include: components for transmitting a first command to the user equipment for activating at least one of the first configuration or the second configuration. The apparatus may further include: components for receiving the first group of one or more SRS transmissions from the user equipment during the first time window and measuring the first group of one or more SRS transmissions. The apparatus may further include: components for performing SRS prediction based on the measurement during a second time window.

[0023] According to various example embodiments, a non-transient computer-readable medium may include program instructions that, when executed by a device, cause the device to perform at least one method. The method may include: sending a first sounding reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of: a first configuration for performing a first set of one or more SRS transmissions to the device during a first time window; or a second configuration for suspending the first set of one or more SRS transmissions during a second time window. The method may further include: sending a first command to the user equipment for activating at least one of the first configuration or the second configuration. The method may further include: receiving the first set of one or more SRS transmissions from the user equipment during the first time window, and measuring the first set of one or more SRS transmissions. The method may further include: performing SRS prediction based on the measurement during the second time window.

[0024] According to some example embodiments, a computer program product can perform a method. The method may include: sending a first sounding reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of the following: a first configuration for performing a first set of one or more SRS transmissions to the device during a first time window; or a second configuration for suspending the first set of one or more SRS transmissions during a second time window. The method may further include: sending a first command to the user equipment for activating at least one of the first configuration or the second configuration. The method may further include: receiving the first set of one or more SRS transmissions from the user equipment during the first time window, and measuring the first set of one or more SRS transmissions. The method may further include: performing SRS prediction based on the measurement during the second time window.

[0025] According to some 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: send a first probe reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of: a first configuration for performing a first set of one or more SRS transmissions to the apparatus during a first time window; or a second configuration for suspending the first set of one or more SRS transmissions during a second time window. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least: send a first command to the user equipment for activating at least one of the first configuration or the second configuration. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least: receive the first set of one or more SRS transmissions from the user equipment during the first time window, and measure the first set of one or more SRS transmissions. The at least one memory and the instructions, when executed by the at least one processor, may also cause the apparatus to at least: perform SRS prediction based on the measurement during a second time window.

[0026] According to various example embodiments, an apparatus may include transmitting circuitry configured to perform a first sounding reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of the following: a first configuration for performing one or more SRS transmissions to the apparatus during a first time window; or a second configuration for suspending the first or more SRS transmissions during a second time window. The apparatus may also include transmitting circuitry configured to perform a first command to the user equipment for activating at least one of the first or second configurations. The apparatus may further include receiving and measuring circuitry configured to perform receiving one or more SRS transmissions from the user equipment during the first time window, and measuring the first or more SRS transmissions. The apparatus may further include prediction circuitry configured to perform SRS prediction based on the measurements during the second time window. Attached Figure Description

[0027] To correctly understand the exemplary embodiments, reference should be made to the accompanying drawings, in which:

[0028] Figure 1 Examples of signaling diagrams for predicting probe reference signals (SRS) using one or more network (NW) side artificial intelligence (AI) / machine learning (ML) models are shown according to certain example embodiments;

[0029] Figure 2 An example signaling diagram for dynamic signaling of SRS prediction using one or more network-side AI / ML models is shown, according to some example embodiments.

[0030] Figure 3 Examples of network-side AI / ML models for time-domain SRS prediction are shown, based on various example embodiments;

[0031] Figure 4 Examples of the operation of the observation window and the prediction window according to certain example embodiments are shown;

[0032] Figure 5 Examples of the operation of the observation window and the prediction window according to some example embodiments are shown;

[0033] Figure 6 Examples of the operation of the observation window and prediction window according to various example embodiments are shown;

[0034] Figure 7 Examples showing flowcharts of methods according to various example embodiments;

[0035] Figure 8 Examples showing flowcharts of methods according to various example embodiments;

[0036] Figure 9 Examples showing flowcharts of methods according to various example embodiments;

[0037] Figure 10 Examples showing flowcharts of methods according to various example embodiments;

[0038] Figure 11 Examples of various network devices according to some example embodiments are shown; and

[0039] Figure 12 Examples of 5G network and system architectures according to certain example embodiments are shown. Detailed Implementation

[0040] It will be readily understood that components of certain example embodiments generally described herein and illustrated in the accompanying drawings may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of some example embodiments of systems, methods, apparatuses, and computer program products for predicting uplink reference signals is not intended to limit the scope of any particular example embodiment, but rather represents selected example embodiments.

[0041] Beam management can be based on artificial intelligence (AI) / machine learning (ML). AI / ML models can be used, for example, to predict one or more optimal beams based on a finite set of measurements. In the case of spatial domain prediction, beam prediction can be based on a finite set of measurements that does not include any historical information. In the case of temporal domain prediction, beam prediction can be based on a finite set of measurements that includes historical information. Measurements and / or predictions can be based on two beam sets. For example, set A can be the complete set of beams on which operation is predicted. Set B can be the set of beams whose measurements (e.g., L1-RSRP, etc.) can be input into one or more AI / ML models. Set B can be different from set A (e.g., in the case of spatial or temporal domain prediction). Set B can be a subset of set A (e.g., in the case of spatial or temporal domain prediction). Set B can be the same as set A (e.g., in the case of temporal domain prediction).

[0042] The terms “SRS”, “SRS transmission”, etc., are used interchangeably in this document.

[0043] The following phrases are used interchangeably in this document: transmission of SRS resources, and SRS transmission on SRS resources.

[0044] The following phrases are used interchangeably in this document: measurement of SRS, measurement of the quality of SRS, measurement of SRS transmission on SRS resources, and measurement of the quality of SRS transmission on SRS resources.

[0045] It enables the transmission and / or configuration of the Sound Reference Signal (SRS). The SRS duration can be configured. The SRS duration can refer to the time or frequency resources allocated for SRS transmission. In some Radio Access Technologies (RATs) (e.g., 5G NR), such allocated resources can be defined by time-domain resources (such as a certain number of subframes or time slots available for SRS transmission), frequency-domain resources (such as a certain number of resource blocks (RBs) allocated for SRS transmission), etc. SRS repetition can determine whether the SRS is transmitted on multiple time slots or subframes; the BS (e.g., gNB) can scan different beams during repetitions (e.g., each repetition).

[0046] The SRS period can be configured. The SRS can be configured to be transmitted at periodic intervals. The period can be defined in the BS (e.g., gNB) by one or more SRS configurations and can vary from 1 millisecond to several milliseconds. During SRS transmission, the BS (e.g., gNB) can, for example, use a specific Rx beam to measure the SRS.

[0047] One or more SRS resources can be configured. In some cases, SRS can be transmitted over one or more symbol periods within a subframe. If more symbol periods and / or SRS opportunities are available, the BS (e.g., gNB) can have more opportunities to scan multiple beams during an SRS period. Beam switching and / or scanning can be performed within a time slot, which can allow the BS (e.g., gNB) to scan multiple beams within a single SRS period (e.g., if sufficient symbol periods are available).

[0048] In the case of simulated beamforming, the number of beams that can be measured during an SRS period can be based on (e.g., depending on) the SRS cycle (e.g., how frequently the SRS is transmitted), the number of OFDM symbols allocated for SRS transmission within an SRS period (e.g., each period), and / or the ability of the BS (e.g., gNB) to switch beam directions within a time slot or SRS period.

[0049] Feedback from the BS (e.g., gNB) after SRS measurement can be mapped to one or more specific information elements (IEs) for RRC configuration (e.g., as described in a suitable standard) and / or one or more IEs for DCI and power control (e.g., as described in a suitable standard). The information elements may describe one or more beam selection, power control, timing advance, and / or SRS configuration; signaling can be performed via DCI or RRC, depending on the IE and / or the latency associated with the signaling. DCI can be used to instruct the UE on uplink beamforming and / or precoder selection based on SRS measurements. Feedback can be transmitted on the PDCCH. When longer-term feedback is possible (e.g., when low-latency feedback is not used), RRC signaling can be used to configure the UE for uplink beamforming and / or for updating SRS resources.

[0050] The relevant IE in the RRC signaling may include "spatialRelationInfo," which may be an IE indicating how the UE can map a specific uplink beam (e.g., a beam used for PUSCH) to a downlink RS. The BS (e.g., gNB) may provide information about which beam or RS can be used for uplink transmission, for example, based on optimal SRS measurements. "srs-ResourceSet" may be an IE defining the set of SRS resources available to the UE. The BS (e.g., gNB) may configure one or more time-domain and / or frequency-domain parameters for SRS transmissions, which may include the number of antenna ports, transmission period, and / or spatial relationships. "srs-Resource" may be an IE configuring individual SRS resources within the resource set, which may include SRS bandwidth, cyclic shift, and / or frequency shift for SRS transmissions. If more symbol periods and / or SRS opportunities are available, the BS (e.g., gNB) may have more opportunities to scan multiple beams during the SRS period.

[0051] The relevant IE in DCI signaling may include an "SRS Request field," which can be a DCI field in DCI format 0_1 ​​or 0-2 that can trigger aperiodic SRS transmission. The BS (e.g., gNB) may request the UE to send SRS, for example, for uplink channel sounding and / or beam management.

[0052] In the context of uplink sounding reference signal (SRS) transmission from the UE to the BS (e.g., gNodeB), the received UL signal can be used for channel estimation, beamforming, and / or MIMO support. SRS can allow UL channel estimation and / or DL-UL channel estimation (e.g., when UL / DL channel reciprocity is met). SRS can be used for beamforming techniques and / or to support MIMO, which enables the BS to perform spatial multiplexing and / or Tx diversity in the DL.

[0053] SRS can play a role in beam management (e.g., a crucial one). To facilitate the alignment of BS and UE beams for UL transmission, the UE can transmit SRS at periodic intervals using a specific UL Tx beam or multiple UL Tx beams (e.g., if UE beam scanning is performed). The BS can measure the received signal strength of the SRS resources on multiple UL Rx beams and can determine a UL channel quality metric (e.g., RSRP) for each individual UL Rx beam (e.g., each UL Rx beam). Based on the quality of the received SRS, the BS can determine the optimal UL Rx beam, for example, to improve the quality of UL transmission. The BS can provide feedback to the UE, which can instruct adjustments to the UL Tx beam, for example, to match the UL Tx beam with the optimal UL Rx beam used by the BS.

[0054] SRS transmissions in beam management can occur in various situations. In the first example, when the UE first connects to the BS, SRS transmissions can be used for initial beam alignment. In the second example, when the UE moves, the BS can receive SRS and determine one or more changes in the UL, which can adjust the UL Rx beam (e.g., to maintain optimal UL signal quality). When the path between the UE and the BS becomes congested, the BS can adjust the UL Rx beam to receive from the direction of the reflected UL channel. The UE can adjust the UL Tx beam based on feedback provided by the BS, for example, to transmit on a different UL Tx beam that is better aligned with the direction of the reflected UL channel. Based on SRS measurements, the BS (e.g., gNB) can switch to different UL Rx beams for UL and DL transmissions, which can be adapted to the DL Tx beam according to changes in the UL Rx beam.

[0055] SRS transmission can be limited. For example, the time / frequency resources used to transmit SRS are expensive, and these resources could otherwise be allocated to UL data. As another example, UEs can consume a significant amount of power for SRS transmission. As yet another example, as the number of UEs increases, their SRS transmissions can cause interference (e.g., interference on the SRS transmissions of individual UEs received by the BS), which can be difficult to coordinate because UL resources can be limited, and SRS usage of these resources can be high.

[0056] To address these limitations, an uplink reference signal (RS) prediction framework (e.g., SRS prediction) can be implemented. The BS can configure the UE to transmit a subset of the SRS for measurement, and another subset of the SRS (e.g., the remaining SRS) can be predicted, for example, using an AI / ML model (e.g., a network (NW) side AI / ML model). This can reduce the duration of the SRS (e.g., the number of OFDM symbols occupied by SRS transmission) and / or the period of the SRS transmission (e.g., in terms of time slots or subframes). SRS prediction can be used at the network level to reduce interference. Because interference can change over time, the SRS prediction configuration can be adjusted / changed over time (e.g., due to delays below one or more acceptable thresholds).

[0057] When applying an AI / ML model (e.g., a network-side model) to temporal SRS prediction, the BS can predict the quality of SRS resources corresponding to one or more UL Tx beams, UL Rx beams, and / or UL Tx-Rx beam pairs. Such SRS resources may not be transmitted by the UE and / or measured by the BS.

[0058] In the various embodiments described herein, the BS can predict the quality of SRS resources over time (e.g., for one or more future moments) and can allow the UE to avoid transmitting SRS at all moments. The BS can modify one or more of the observation and prediction window configurations as described herein in response to changes in the UE's UL and / or DL ​​channels. One or more BSs can coordinate SRS transmissions and / or predictions for multiple UEs to limit interference conditions.

[0059] The example embodiments described herein may have various benefits and / or advantages to overcome the disadvantages described above. For example, some example embodiments may reduce resource overhead for transmitting SRS, improve the quality of UL transmission, and / or reduce interference. Therefore, some example embodiments discussed below are improvements to computer-related technologies.

[0060] Figure 1Examples of signaling diagrams for predicting probe reference signals (SRS) using one or more network (NW)-side AI / ML models are shown according to certain example embodiments. According to certain example embodiments, UE 102 can be used with... Figure 11 Similar to the UE 1120 shown. According to some example embodiments, the NE 104 can be with, for example... Figure 11 The NE 1110 shown is similar.

[0061] In the initial phase, NE 104 can perform data collection and can train one or more SRS prediction AI / ML models based on (e.g., using) SRS measurements. Figure 3 The details of the SRS prediction AI / ML model implementation are described in the document. After one or more SRS prediction AI / ML models are deployed at NE 104, NE 104 can perform the following steps.

[0062] In step 110, NE 104 may configure UE 102 with one or more parameters associated with an observation window and / or a prediction window related to SRS transmission and / or the suspension of SRS transmission. For example, NE 104 may send SRS configuration (e.g., one or more parameters) to UE 102, which includes one or more configurations for at least one of the following: an observation window (e.g., observation window 140), a prediction window (e.g., prediction window 142), a first SRS resource set, or a second SRS resource set. The SRS configuration may be sent using Radio Resource Control (RRC) signaling.

[0063] SRS configurations may include one or more configurations that define the time-related behavior of one or more observation windows. For example, an SRS configuration may include an SRS period for the observation window. An SRS period may specify the period (e.g., the frequency of SRS transmissions) of one or more individual SRS transmissions that occur within the observation window.

[0064] A first SRS resource set can be configured as the SRS resources on which SRS transmissions can be performed during an observation window. The SRS configuration can take various forms to configure the SRS transmission(s) to be performed on the first SRS resource set. In some cases, an individual SRS transmission at each moment during the observation window can be configured to be performed on the entire SRS resource set within the first SRS resource set. In other cases, individual SRS transmissions at different moments during the observation window can be configured to be performed on different subsets of the first SRS resource set. For example, a first subset of the first SRS resource set may be used to perform SRS transmissions at a first moment during the observation window. A second subset of the first SRS resource set may be used to perform SRS transmissions at a second moment during the observation window. In at least one embodiment, the SRS configuration can indicate a resource mapping for the observation window that specifies which SRS resources in the first resource set can be used at which moments during the observation window. The moments during the observation window may also be referred to herein as time intervals.

[0065] The SRS configuration for the time-related behavior of one or more observation windows may also include the SRS duration for the observation window. The SRS duration for the observation window may indicate the total length of time within the observation window or the number of SRS transmissions (one or more) over one or more symbol periods.

[0066] The SRS configuration can also indicate one or more time-related behaviors of the prediction window(s), such as the SRS duration. The SRS duration used for the prediction window can indicate the time interval during which SRS transmissions on the first resource set will not be performed (e.g., paused).

[0067] SRS configurations for one or more time-related actions can include a time offset between the observation window and the prediction window. This time offset can be applied when the observation window and the prediction window overlap in time. For example, an SRS transfer can be configured to be performed at times 1 and 3 (which are within the observation window). An SRS transfer can be configured to be paused at times 2 and 4 (which are within the prediction window). The following... Figure 5 More details are provided regarding an example of this configuration.

[0068] SRS configurations for one or more time-related behaviors may include periodic configurations that define pattern repetitions that follow the prediction window after the observation window.

[0069] The SRS configuration described in this article for one or more time-related behaviors can be implemented using one or more information elements.

[0070] The SRS configuration may include one or more beam configurations associated with SRS transmissions on the first SRS resource set. Such beam configurations may indicate the configuration of one or more UL Tx beams to be used by UE 102 when performing SRS transmissions on the first SRS resource set during the observation window (according to one or more preferences of NE 104). For example, such beam configurations may indicate the maximum and / or minimum number of UL Tx beams. Such beam configurations may indicate a repetition pattern for transmission using one or more UL Tx beams. Such beam configurations may list DL Tx beam indices corresponding to UL Rx beams for which NE 104 has measured priority.

[0071] The second SRS resource set can be configured as one or more SRS resources to be indicated by an SRS indication from NE 104.

[0072] In step 112, UE 102 may send a first SRS resource set to NE 104 during observation window 140. As described herein, individual SRS transmissions may be performed on the entire set of the first SRS resource set or a subset of the first SRS resource set. In some embodiments, SRS transmissions on the first SRS resource set may be performed based on one or more beam configurations received from NE 104 in step 110.

[0073] In step 114, NE 104 can measure the quality of SRS received on the first SRS resource set during the observation window 140 (e.g., one or more moments within that window) (e.g., UL SRS-RSRP). NE 104 can collect the history of such measurements as data for use in network-side AI / ML models (e.g., such as...). Figure 3 The input to the SRS time-domain prediction AI / ML model 302 shown is given.

[0074] In step 116, during prediction window 142, NE 104 may use a network-side AI / ML model to perform inference (e.g., one or more temporal SRS predictions). In at least one embodiment, based on the measurement history collected in step 114 and the network-side AI / ML model, NE 104 may, for one or more future moments of prediction window 142, predict, as output, one or more SRS resources (including the quality of one or more SRS resources) and / or one or more UL Tx beams (including the quality of one or more UL Tx beams) of the second SRS resource set. Based on the output of the AI / ML model, NE 104 may determine one or more of the best-predicted SRS resources and / or one or more of the best-predicted UL Tx beams of the second SRS resource set.

[0075] In step 118, NE 104 may indicate to UE 102 (e.g., in an SRS indication) one or more of the best-predicted SRS resources (e.g., one or more resource indices) and / or one or more of the best-predicted UL Tx beam information (e.g., one or more beam IDs) of the second SRS resource set determined in step 116. The SRS indication may instruct UE 102 to be configured to perform one or more uplink transmissions based on the indicated one or more SRS resources and / or one or more UL Tx beam information. The SRS indication may also indicate when to use the indicated one or more SRS resources and / or apply one or more UL Tx beam information (e.g., by including a timestamp for the predicted time). In response, UE 102 may perform subsequent uplink transmissions (e.g., one or more PUSCH transmissions) based on the indicated one or more SRS resources and / or one or more UL Tx beam information.

[0076] In step 120, based on the SRS duration of prediction window 142, UE 120 may suspend SRS transmissions on the first SRS resource set within the prediction window. The illustration of executing step 120 after steps 116 and 118 within prediction window 142 is not intended to limit when step 120 begins or ends. Step 120 may be executed for the entire duration of prediction window 142. Since SRS transmissions on the first SRS resource set are suspended at one or more moments within prediction window 142, NE 104 can use the SRS quality predicted by the network-side AI / ML model (in step 116) for the corresponding moments within prediction window 142. In other words, the quality predicted by the network-side AI / ML model for moments within prediction window 142 is used instead of a measurement of the quality of SRS transmissions on the first SRS resource set (which are suspended during prediction window 142).

[0077] In some embodiments, NE 104 may determine in step 116 that a prediction for a subset of the second SRS resource set indicates that the quality of such a subset degrades at one or more times during the prediction window 142 (e.g., at time t3 within the prediction window 142 including times t1, t2, and t3). In response, in step 118, NE 104 may instruct UE 102 that UE 102 will be configured to suspend SRS transmissions on such a subset of the second SRS resource set at one or more times during the prediction window 142 associated with the degraded prediction quality (e.g., at t3). In response, UE 102 may suspend SRS transmissions on such a subset of the second SRS resource set as configured. Alternatively or additionally, NE 104 may instruct UE 102 that UE 102 will be configured to perform SRS transmissions on the remaining resources of the second SRS resource set at other times (e.g., t1 and t2) during the prediction window 142. In response, UE 102 may perform SRS transmissions on the remaining resources of the second SRS resource set during the prediction window 142, as configured.

[0078] In step 122, during the monitoring / data collection phase 144, NE 104 may configure UE 102 to perform SRS transmissions on a first SRS resource set and / or a second SRS resource set. This configuration can be applied generally and may not be specific to observation window 140 or prediction window 142 (e.g., as described herein with respect to the SRS configuration at step 110). In some embodiments, the monitoring / data collection phase 144 may be performed in parallel with the operation of one or more of observation window 140 and / or prediction window 142. In such embodiments, SRS transmissions may be performed on a second SRS resource set.

[0079] In step 124, UE 102 may use a set of UL Tx beams to transmit a second SRS resource set. Such a set of UL Tx beams may be different from the UL Tx beams indicated by NE 104 in step 118.

[0080] In step 126, NE 104 can measure the quality of SRS transmissions received on the second SRS resource set.

[0081] In step 128, when monitoring the performance of the network-side AI / ML model for temporal SRS prediction as described above, NE 104 can compare the measurements from step 126 with the prediction results from step 116 to determine (e.g., key performance indicators (KPIs) for performance monitoring, as defined for the network-side AI / ML model). In the case of data collection for the network-side AI / ML model for temporal SRS prediction as described above, NE 104 can collect measurements (e.g., with timestamp information) and can create one or more datasets with training labels, for example, to train the network-side AI / ML model for temporal SRS prediction as described above.

[0082] Figure 2 An example signaling diagram for dynamic signaling prediction using one or more network-side AI / ML models is shown, according to certain example embodiments. According to certain example embodiments, UE 202 can... Figure 1 UE 102 and / or Figure 11 Similar to UE 1120 in [the example]. According to some example embodiments, NE 204 can be [related to / compare with / etc.]. Figure 1 NE 104 and / or Figure 11 Similar to NE 1110 in the example.

[0083] Similar to NE 104, in the initial phase, NE 204 can perform data collection and can train one or more SRS prediction AI / ML models based on (e.g., using) SRS measurements. After the one or more SRS prediction AI / ML models are deployed at NE 204, NE 204 can perform the following steps.

[0084] In step 210, NE 204 can configure one or more parameters for dynamic signaling of the observation window and prediction window for UE 202.

[0085] In a first embodiment, NE 204 may send an SRS configuration to UE 202, the SRS configuration including one or more configurations for at least one of the following: a list of one or more aperiodic SRS triggers, and an observation window and a prediction window associated with each aperiodic SRS trigger. The configuration for the observation window(s) may configure UE 202 to perform one or more SRS transmissions to NE 204 during the observation window. Such configuration for the observation window(s) may include an SRS duration (e.g., the number of SRS transmissions within the observation window) and an SRS period (the frequency of SRS transmissions within the observation window). The configuration for the prediction window(s) may configure UE 202 to pause SRS transmissions during the prediction window. Such configuration for the prediction window(s) may include an SRS duration (e.g., the duration during which SRS transmissions are paused).

[0086] In the second embodiment, NE 204 may send SRS configuration to UE 202, the SRS configuration including configuration(s) for at least one of the following: a semi-persistent SRS configuration, and an observation window and a prediction window associated with the semi-persistent SRS configuration. The configuration(s) for the observation window(s) may include the SRS duration and SRS period (e.g., similar to those used for...). Figure 1 The SRS duration and SRS period of the observation window 140 in the image. The configuration for the prediction window(s) may include the SRS duration (e.g., similar to that used for...). Figure 1 The SRS duration of the prediction window 142 in the above first or second embodiment). The SRS configuration in the above first or second embodiment can be sent using RRC signaling.

[0087] In step 212, NE 204 may send a first command to initialize (e.g., activate) one or more configurations (e.g., parameters) of the observation window and prediction window(s). In the first embodiment above, activation may be performed using a trigger from a list of non-periodic SRS triggers. In this embodiment, the configurations for the observation window and prediction window(s) associated with such a trigger may be activated.

[0088] In the second embodiment above, activation can be performed using a semi-persistent SRS configuration. In this embodiment, one or more configurations associated with the semi-persistent SRS configuration for the observation window and prediction window can be activated. In either the first or second embodiment, the first command can be sent using MAC CE or DCI signaling.

[0089] In step 214, based on the first command, UE 202 may perform one or more SRS transmissions during the observation window and suspend SRS transmissions during the prediction window. In the second embodiment above, the observation window and prediction window(s) operations may be repeated until one or more additional commands(s) from NE 204(s).

[0090] In response to one or more SRS transmissions from UE 202, NE 204 can measure the quality of one or more SRS transmissions during the observation window, for example, similar to Figure 1 Step 114 in the process.

[0091] In step 216, NE 204 can use the network-side AI / ML model described herein to perform inference (e.g., one or more temporal SRS predictions), for example, similar to Figure 1 Step 116 in the process.

[0092] In step 218, NE 204 may monitor UL and / or DL ​​channel conditions (e.g., continuously) based on UL and / or DL ​​measurements. Additionally or alternatively, NE 204 may monitor the performance of one or more time-based SRS prediction models (e.g., continuously).

[0093] In step 220, NE 204 may determine to update one or more configurations (e.g., parameters) for the observation window and prediction window activated in step 212. Determining to update one or more configurations may be based on one or more conditions and / or one or more events detected by monitoring of UL and / or DL ​​channel conditions. The detected conditions and / or one or more events may be due to UE 202 mobility, intra-cell and / or inter-cell interference, and / or optimized interference coordination (e.g., in a multi-TRP scenario) received from other NEs (e.g., network nodes). In the event of highly variable channel conditions detected due to UE mobility, NE 204 may determine to update UE 202 to use shorter observation and prediction windows, for example, to improve the accuracy of SRS timing prediction. In the first embodiment above, NE 204 may determine to trigger one or more AP SRS triggers more frequently to capture channel changes.

[0094] Additionally or alternatively, determining that updating(one or more) configurations may be based on monitoring of(one or more) conditions and / or(one or more) events detected according to the performance of(one or more) time SRS prediction models (e.g., the prediction accuracy of(one or more) time SRS prediction models).

[0095] In step 222, based on the determination in step 220, NE 204 may send a second command to UE 202 to update the configuration(s) for the observation window and prediction window.

[0096] In the first embodiment above, in some cases, NE 204 may send a second command to activate, for example, the same aperiodic SRS trigger for the same (one or more) configurations for the observation and prediction windows activated in step 212. In other cases, NE 204 may send a second command to activate different (one or more) configurations for the observation and prediction windows using an associated aperiodic SRS trigger from the list of aperiodic SRS triggers that is different from the aperiodic SRS trigger used in step 212. In any of these cases, the second command may be sent using MAC CE or DCI signaling. In response, in step 224, based on the second command received in step 222, UE 202 may perform (one or more) SRS transmissions.

[0097] In the second embodiment above, in some cases, the second command may be an SRS configuration different from the SRS configuration sent to UE 202 in step 210 (e.g., replacing the SRS configuration in step 210). In this case, in response, in step 224, UE 202 may perform one or more SRS transmissions based on the different SRS configuration (e.g., after receiving another command for activating one or more configurations for the observation window and prediction window included in the different SRS configurations), for example, using a different semi-persistent SRS configuration. In other cases, the second command may be a command for deactivating one or more configurations for the observation window and prediction window activated in step 212, for example, using the same semi-persistent SRS configuration.

[0098] Figure 3 An example of a network-side AI / ML model 302 for time-domain SRS prediction is shown, according to certain example embodiments. The SRS time-domain prediction AI / ML model 302 can be similar to that described herein. Figure 1 and Figure 2 The SRS prediction AI / ML model described in the document.

[0099] SRS time-domain prediction AI / ML model 302 can be provided based on SRS resource sets (e.g., in... Figure 1The measurement history of the first SRS resource set described in the text is used as input 304. Measurements may include one or more of the following: UL SRS reference signal received power (UL SRS-RSRP), UL SRS reference signal received path power (UL SRS-RSRPP), UL Tx beam quality (e.g., RSRP of a UL Tx beam), or UL Tx-Rx beampair quality (e.g., RSRP of a UL Tx-Rx beampair). The SRS time-domain prediction AI / ML model 302 may be based on different SRS resource sets (e.g., in...). Figure 2 The model output 306 generates a sequence of N future time predictions from the second SRS resource set described in the model. For example, the model output 306 may include one or more of the following: predicted UL SRS reference signal received power (UL SRS-RSRP), predicted UL SRS reference signal received path power (UL SRS-RSRPP), predicted UL Tx beam quality (e.g., RSRP of UL Tx beams), predicted UL Tx-Rx beampair quality (e.g., RSRP of UL Tx-Rx beampairs), one or more predicted SRS resource indices based on the predicted quality of ordered SRS resources, one or more predicted UL Tx beam indices based on the predicted quality of ordered UL Tx beams, predicted UL Tx-Rx beampair indexes based on the hierarchical predicted quality of UL Tx-Rx beampairs, predicted UL channel state information (CSI), or predicted UL precoding matrix indicator (PMI).

[0100] The data given at the input of the AI / ML model 302 can be processed by inner layers, which may include a series of hidden layers (e.g., hidden layer 1 to hidden layer N) based on one or more neural network (NN) blocks. These NN blocks can be of various types, such as deep neural networks (DNN), convolutional neural networks (CNN), recurrent neural networks (RNN), or long short-term memory (LSTM), and can be formed by trainable parameters. The type of temporal SRS prediction in the AI / ML model 302 can be an LSTM, a transformer model, or an autoencoder-decoder model, etc.

[0101] In at least one embodiment, information can flow from the input block to the output block in a forward direction. In some embodiments, the regression AI / ML model can use an output block predicting continuous values, which represent parameters characterizing SRS resources, such as UL SRS reference signal received power (UL SRS-RSRP), UL SRS reference signal received path power (UL SRS-RSRPP), UL Tx beam quality (e.g., RSRP of a UL Tx beam), UL Tx-Rx beampair quality relative to the SRS resource (e.g., RSRP of a UL Tx-Rx beampair), UL channel state information (CSI), or UL precoding matrix indicator (PMI). In some embodiments, the classification AI / ML model can use an output block predicting discrete values ​​associated with SRS resources, such as an SRS resource index, UL Tx beam index, or UL Tx-Rx beampair index corresponding to the SRS resource.

[0102] Training the AI / ML model 302 can be performed using any one or more training methods that are deemed suitable by those skilled in the art. In some embodiments, the model training parameters can be determined using supervised machine learning techniques (e.g., gradient descent), where the labels represent, for example, the ground-truth UL SRS-RSRP, the best SRS resource index, the top K best SRS resource indices, the measured UL channel state information (CSI), or the UL precoding matrix indicator (PMI) relative to the SRS resource. In other embodiments, other training techniques, such as those based on unsupervised learning or continuous learning, can be used. After training is complete, the AI / ML model 302 can be deployed and used on the network side (e.g., in...). Figure 1 NE104 and / or Figure 2 The reasoning at NE 204 in the text.

[0103] Figure 4 Examples of the operation of the observation window and prediction window at the UE are shown according to certain example embodiments. According to certain example embodiments, the UE (not shown) can be... Figure 1 UE 102 and / or Figure 11 UE 1120 in the middle.

[0104] UE can be obtained from NE (e.g., Figure 1 NE 104 in the middle) receives SRS configuration (e.g., in Figure 1 The SRS configuration received in step 110). As shown in the figure, the SRS configuration may include two SRS resources in the SRS resource set (e.g., SRS1 and SRS2, similar to...). Figure 1The first SRS resource set described in the document. The UE can be configured to perform one or more SRS transmissions in the time domain (e.g., over 2 OFDM symbols) with an SRS period per time slot (e.g., 2 milliseconds) and in the frequency domain (e.g., over a specific subcarrier / RB of the bandwidth) with an SRS frequency density in a given subcarrier (e.g., 2).

[0105] The configuration(s) used for the observation window(s) can specify the SRS duration for the observation window, such as the number of time slots, the number of OFDM symbols, the number of SRS transmissions within the observation window (e.g., 4), and / or the number of SRS transmissions for each SRS resource (e.g., 2).

[0106] The configuration(s) used for the prediction window(s) can specify the SRS duration of the prediction window. The SRS duration can indicate the time interval for pausing / suppressing SRS transmissions on SRS1 and SRS2. The SRS configuration can configure a periodic configuration for the UE, which can configure the observation window to repeat after the prediction window. It should be noted that the SRS transmissions on the second set of SRS1 and SRS2 under SRS transmission 406 are omitted for the sake of illustrative simplicity, and such omission should not be interpreted as a different behavior of the SRS transmissions under SRS transmission 402.

[0107] Figure 5 Examples of the operation of the observation window and prediction window at the UE are shown according to certain example embodiments. According to certain example embodiments, the UE (not shown) can be... Figure 1 UE 102 and / or Figure 11 UE 1120 in the middle.

[0108] UE can receive and Figure 4 The SRS configuration shown is similar to the SRS configuration except that the observation window and prediction window are interleaved in the time domain. As shown, the moments used for SRS transmission within the observation window can be interleaved with the moments used for SRS pause / suppression within the prediction window. As shown, the time offset between the observation window and the prediction window can be configured. This time offset can be configured to define the time offset between the end of the observation window and the beginning of the prediction window (e.g., the amount of overlap between the two windows).

[0109] Figure 6 Examples of the operation of the observation window and prediction window at the UE are shown according to certain example embodiments. According to certain example embodiments, the UE (not shown) can be... Figure 1 UE 102 and / or Figure 11UE 1120 in the figure. As shown, the observation window and prediction window can be configured specifically for each SRS. SRS transmissions on SRS1 and SRS3 can be performed during the observation window, while these SRS transmissions can be paused during the prediction window. SRS transmissions on SRS2 and SRS4 can be paused during the observation window, while these SRS transmissions can be performed during the prediction window.

[0110] Figure 7 This illustrates various example embodiments that can be provided by a UE (such as...) Figure 11 Example of a flowchart of method 700 executed by UE 1120.

[0111] In step 702, the method may include: receiving a probe reference signal (SRS) configuration from a network entity. The SRS configuration may include at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity.

[0112] In some embodiments, the SRS configuration may be received via Radio Resource Control (RRC).

[0113] In some embodiments, the SRS configuration may further include: a subset of a first SRS resource set associated with each moment within a first time window; and a subset of a second SRS resource set associated with each moment within a second time window.

[0114] In some embodiments, the first time window may be an observation window, and the observation window may be configured with an SRS period and a first SRS duration. In this embodiment, the SRS period may indicate the period of SRS transmissions during the observation window, and the first SRS duration may indicate the total length of time during the observation window or the number of SRS transmissions over one or more symbol periods.

[0115] In some embodiments, the second time window may be a prediction window, and the prediction window may be configured with a second SRS duration. In this embodiment, the second SRS duration may indicate the duration for which the first group of one or more SRS transmissions is paused during the prediction window.

[0116] In some embodiments, the first time window and the second time window may overlap in time by an offset.

[0117] In step 704, the method may further include: performing a first set of one or more SRS transmissions on a first SRS resource set during a first time window. In some embodiments, the SRS configuration may further include one or more beam configurations associated with the first SRS resource set. In this embodiment, the first set of one or more SRS transmissions to the network entity may be performed according to one or more beam configurations. In some embodiments, the first set of one or more SRS transmissions to the network entity may be paused during a second time window.

[0118] In step 706, the method may further include: receiving from a network entity an SRS indication of one or more resources of a second SRS resource set. In some embodiments, one or more resources of the second SRS resource set may be indicated for subsequent uplink transmissions. In this embodiment, the method may further include: performing one or more subsequent uplink transmissions on one or more resources of the second SRS resource set.

[0119] In some embodiments, the SRS indication may further indicate uplink transmission beaming information associated with one or more resources of a second SRS resource set. In this embodiment, one or more subsequent uplink transmissions may be performed based on the uplink transmission beaming information.

[0120] In some embodiments, one or more resources of a second SRS resource set may be designated for a second set of one or more SRS transmissions to a network entity. In this embodiment, the method may further include performing a second set of one or more SRS transmissions on one or more resources of the second SRS resource set.

[0121] In some embodiments, one or more resources of the second SRS resource set may be designated not to be used for SRS transmissions to network entities. In this embodiment, SRS transmissions may be paused on one or more resources of the second SRS resource set.

[0122] Figure 8 This illustrates various example embodiments that can be generated by an NE (such as...) Figure 11 Example of a flowchart of method 800 executed by NE 1110 in the diagram.

[0123] In step 802, the method may include: sending a sounding reference signal (SRS) configuration to the user equipment, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions from the user equipment will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication.

[0124] In some embodiments, the SRS configuration may be transmitted via Radio Resource Control (RRC).

[0125] In some embodiments, the SRS configuration may further include: a subset of a first SRS resource set associated with each moment within a first time window; and a subset of a second SRS resource set associated with each moment within a second time window.

[0126] In some embodiments, the first time window may be an observation window, and the observation window may be configured with an SRS period and a first SRS duration. In this embodiment, the SRS period may indicate the period of SRS transmissions during the observation window, and the first SRS duration may indicate the total length of time during the observation window or the number of SRS transmissions over one or more symbol periods.

[0127] In some embodiments, the second time window may be a prediction window, and the prediction window may be configured with a second SRS duration. In this embodiment, the second SRS duration may indicate the duration for which the first group of one or more SRS transmissions is paused during the prediction window.

[0128] In some embodiments, the first time window and the second time window may overlap in time by an offset.

[0129] In step 804, the method may further include: during a first time window, receiving a first group of one or more SRS transmissions from a user equipment on a first SRS resource set, and measuring the first group of one or more SRS transmissions during the first time window.

[0130] In some embodiments, the SRS configuration may further include one or more beam configurations associated with a first SRS resource set. In this embodiment, a first set of one or more SRS transmissions from a user equipment may be identified as being associated with one or more beam configurations.

[0131] In step 806, the method may further include: performing SRS resource prediction based on measurements. In some embodiments (also referred to herein as "SRS indication embodiments"), the method may further include: determining an SRS indication based on the SRS resource prediction; and sending the SRS indication to the user equipment.

[0132] In some SRS indication embodiments, the SRS indication may indicate one or more resources of a second SRS resource set to be used for subsequent uplink transmissions. In these embodiments, the method may further include receiving one or more subsequent uplink transmissions on one or more resources of the second SRS resource set. In some embodiments of these embodiments, the SRS indication may also indicate uplink transmission beaming information associated with one or more resources of the second SRS resource set, and one or more subsequent uplink transmissions may be determined to be associated with the uplink transmission beaming information.

[0133] In some SRS indication embodiments, the SRS indication may indicate one or more resources of a second SRS resource set to be used for a second set of one or more SRS transmissions. In these embodiments, the method may further include: receiving a second set of one or more SRS transmissions on one or more resources of the second SRS resource set.

[0134] In some SRS indication embodiments, the SRS indication may indicate that one or more resources of a second SRS resource set are not used for SRS transmissions from a user equipment.

[0135] In some embodiments, the prediction of SRS resources can be achieved using one or more network-side artificial intelligence (AI) / machine learning (ML) models.

[0136] Figure 9 This illustrates various example embodiments that can be used by a UE (such as...) Figure 11 Example of a flowchart of method 900 executed by UE 1120.

[0137] In step 902, the method may include: receiving a first probe reference signal (SRS) configuration from a network entity. The SRS configuration may include at least one of the following: a first configuration for performing a first set of one or more SRS transmissions to the network entity during a first time window; or a second configuration for suspending the first set of one or more SRS transmissions during a second time window.

[0138] In some embodiments, the first configuration may include at least one of the following: the duration of a first time window, or the frequency of SRS transmissions within the first time window. The second configuration may include at least the duration of a second time window.

[0139] In some embodiments, the first time window may be an observation window, and the second time window may be a prediction window.

[0140] In step 904, the method may further include: receiving from a network entity a first command for activating at least one of a first configuration or a second configuration. In a first embodiment, the first SRS configuration may further include a list of one or more aperiodic SRS triggers. A first aperiodic SRS trigger in the list of one or more aperiodic SRS triggers may be associated with the first configuration and the second configuration. Activation of at least one of the first configuration or the second configuration may be performed using the first aperiodic SRS trigger. In a second embodiment, the first SRS configuration may further include a semi-persistent SRS configuration. Activation of at least one of the first configuration or the second configuration may be performed using the semi-persistent SRS configuration.

[0141] In step 906, the method may further include: in response to a first command, performing a first group of one or more SRS transmissions to a network entity during a first time window, and suspending the first group of one or more SRS transmissions during a second time window.

[0142] In the first embodiment above, in some embodiments, the first SRS configuration may further include: a third configuration for performing a second set of one or more SRS transmissions to a network entity during a third time window; and a fourth configuration for suspending the second set of one or more SRS transmissions during a fourth time window. A second aperiodic SRS trigger in a list of one or more aperiodic SRS triggers may be associated with the third and fourth configurations. In some embodiments, the method may further include: receiving from a network entity a second command for activating at least one of the third or fourth configurations; and, in response to the second command, activating at least one of the third or fourth configurations using a second aperiodic SRS trigger.

[0143] In the second embodiment above, the method may further include: receiving from a network entity a second command for deactivating at least one of a first configuration or a second configuration; and deactivating at least one of the first configuration or the second configuration in response to the second command.

[0144] In some embodiments, the method may further include: receiving a second SRS configuration from a network entity; and updating a first SRS configuration with the second SRS configuration.

[0145] In some embodiments, the first SRS configuration and the second SRS configuration may be received via Radio Resource Control (RRC). The first command and the second command may be received via Downlink Control Information (DCI) or Media Access Control (MAC) Control Element (CE).

[0146] Figure 10 This illustrates various example embodiments that can be generated by an NE (such as...) Figure 11 Example of a flowchart of method 1000 executed by NE 1110 in the diagram.

[0147] In step 1002, the method may include: sending a first sounding reference signal (SRS) configuration to the user equipment. The SRS configuration may include at least one of the following: a first configuration for performing a first set of one or more SRS transmissions to the device during a first time window; or a second configuration for suspending the first set of one or more SRS transmissions during a second time window.

[0148] In some embodiments, the first configuration may include at least one of the following: the duration of a first time window, or the frequency of SRS transmissions within the first time window. The second configuration may include at least the duration of a second time window.

[0149] In some embodiments, the first time window may be an observation window, and the second time window may be a prediction window.

[0150] In step 1004, the method may further include: sending a first command to the user equipment for activating at least one of the first configuration or the second configuration. In a first embodiment, the first SRS configuration may further include a list of one or more aperiodic SRS triggers. A first aperiodic SRS trigger in the list of one or more aperiodic SRS triggers may be associated with the first configuration and the second configuration. Activation of at least one of the first configuration or the second configuration may be performed using the first aperiodic SRS trigger. In a second embodiment, the first SRS configuration may further include a semi-persistent SRS configuration. Activation of at least one of the first configuration or the second configuration may be performed using the semi-persistent SRS configuration.

[0151] In step 1006, the method may further include: receiving a first group of one or more SRS transmissions from a user equipment during a first time window, and measuring the first group of one or more SRS transmissions during the first time window.

[0152] In step 1008, the method may further include: performing SRS prediction based on measurements during a second time window.

[0153] In the first embodiment above, in some embodiments, the first SRS configuration may further include: a third configuration for performing a second set of one or more SRS transmissions to a network entity during a third time window; and a fourth configuration for suspending the second set of one or more SRS transmissions during a fourth time window. A second aperiodic SRS trigger from a list of one or more aperiodic SRS triggers may be associated with the third and fourth configurations. In some embodiments, the method may further include: sending a second command to a user equipment for activating at least one of the third or fourth configurations using the second aperiodic SRS trigger.

[0154] In the second embodiment above, the method may further include: sending a second command to the user equipment for deactivating at least one of the first configuration or the second configuration.

[0155] In some embodiments, the method may further include: sending a second SRS configuration to the user equipment.

[0156] In some embodiments, the first SRS configuration and the second SRS configuration may be received via Radio Resource Control (RRC). The first command and the second command may be received via Downlink Control Information (DCI) or Media Access Control (MAC) Control Element (CE).

[0157] Figure 11 An example of a system according to certain example embodiments is shown. In one example embodiment, the system may include multiple devices, such as NE 1110 and / or UE 1120.

[0158] NE 1110 can be one or more of a base station (e.g., a 3G UMTS Node B, a 4G LTE Evolution Node B, or a 5G NR Next Generation Node B), a serving gateway, a server, and / or any other access node or combination thereof.

[0159] NE 1110 may also include at least one gNB centralized unit (CU), which may be associated with at least one gNB distributed unit (DU). At least one gNB CU and at least one gB-DU may be connected via at least one F1 interface and at least one X... n -C interface, and / or communicate via at least one NG interface of the fifth generation core (5GC).

[0160] UE 1120 may include one or more of the following: mobile devices (such as mobile phones, smartphones, personal digital assistants (PDAs), tablet computers, or portable media players), digital cameras, pocket cameras, video game consoles, navigation units (such as Global Positioning System (GPS) devices), desktop or laptop computers, single-positioning devices (such as sensors or smart meters), or any combination thereof. Furthermore, NE 1110 and / or UE 1120 may be one or more Citizen Broadband Radio Service (CBSD) devices.

[0161] NE 1110 and / or UE 1120 may include at least one processor, designated as 1111 and 1121, respectively. Processors 1111 and 1121 may be embodied in 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.

[0162] At least one memory may be provided in one or more devices, as indicated at 1112 and 1122. The memory may be fixed or removable. The memory may include computer program instructions or computer code contained therein. Memory 1112 and 1122 may independently be any suitable storage device, such as a non-transient computer-readable medium. The term "non-transient" as used herein may correspond to a limitation of the medium itself (i.e., tangible rather than tactile) rather than a limitation of the persistence of data storage (e.g., random access memory (RAM) compared to read-only memory (ROM)). Hard disk drives (HDDs), random access memory (RAM), flash memory, or other suitable memory may be used. The memory may be integrated onto a single integrated circuit that serves as a processor, or it may be separate from one or more processors. Furthermore, the computer program instructions stored in the memory and processable by the processor may be any suitable form of computer program code, such as a compiled or interpreted computer program written in any suitable programming language.

[0163] Processors 1111 and 1121, memories 1112 and 1122, and any subset thereof can be configured to provide with Figures 1 to 10 The components corresponding to each box. Although not shown, these devices may also include positioning hardware, such as GPS or microelectromechanical systems (MEMS) hardware, which can be used to determine the location of the device. Other sensors are also permitted and can be configured to determine position, altitude, speed, orientation, etc., such as barometers, compasses, etc.

[0164] like Figure 11As shown, transceivers 1113 and 1123 may be provided, and one or more devices may also include at least one antenna, shown as 1114 and 1124 respectively. The devices may have multiple antennas, such as antenna arrays configured for multiple-input multiple-output (MIMO) communication, or multiple antennas for multiple RATs. Other configurations of these devices may be provided, for example. Transceivers 1113 and 1123 may be transmitters, receivers, both transmitters and receivers, or units or devices configured for both transmitting and receiving.

[0165] Memory and computer program instructions can be configured, together with the processor of a specific device, to cause a hardware device (such as a UE) to perform any of the processes described above (i.e., Figures 1 to 10 Therefore, in some example embodiments, the non-transient computer-readable medium may be encoded with computer instructions that, when executed in hardware, perform one of the processes described herein. Alternatively, some example embodiments may be executed entirely in hardware.

[0166] In some example embodiments, the apparatus may include being configured to perform Figures 1 to 10 The term "circuit" as used herein may refer to one or more or all of the following: (a) a purely hardware circuit implementation (such as an implementation in a purely analog and / or digital circuit), (b) a combination of hardware circuitry and software, such as (if applicable): (i) a combination of analog and / or digital hardware circuitry with software / firmware, and (ii) any portion of a hardware processor (including a digital signal processor), software, and memory having software that works together to enable a device (such as a mobile phone or server) to perform various functions, and (c) (one or more) hardware circuitry and / or (one or more) processors, such as a microprocessor or a portion thereof, which require software (e.g., firmware) for operation, but may be absent when the software is not required for operation. This definition of "circuit" applies to all uses of the term in this application (including in any claim). As another example, as used herein, the term "circuit" also covers a purely hardware circuitry or processor (or processors) or a portion thereof and its (or their) accompanying software and / or firmware implementation. For example, and if applicable to a particular claim element, the term "circuit" also covers baseband integrated circuits or processor integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices, or other computing or network devices.

[0167] Figure 12Examples of 5G network and system architectures according to certain example embodiments are shown. Multiple network functions are illustrated, which can be implemented as software operating as part of a network device or dedicated hardware, implemented as the network device itself or dedicated hardware, or implemented as virtual functions operating as a network device or dedicated hardware. Figure 12 The NE and UE shown can be similar to NE 1110 and UE 1120, respectively. User plane functions (UPF) can provide multiple services, such as intra-RAT and inter-RAT mobility, data packet routing and forwarding, packet inspection, user plane quality of service (QoS) processing, downlink packet buffering, and / or triggering downlink data notifications. Application functions (AF) primarily interface with the core network to facilitate the application use of service routing and interaction with the policy framework.

[0168] According to some example embodiments, processors 1111 and 1121 and memories 1112 and 1122 may be included in or form part of processing or control circuitry. Furthermore, in some example embodiments, transceivers 1113 and 1123 may be included in or form part of transceiver circuitry.

[0169] In some example embodiments, the apparatus (e.g., NE 1110 and / or UE 1120) may include components for performing the methods, processes, or any variations discussed herein. Examples of such components may include one or more processors, memory, controllers, transmitters, receivers, and / or computer program code for causing the execution of operations.

[0170] In various example embodiments, apparatus 1120 may be controlled by memory 1122 and processor 1121 to perform the following operations: receiving a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity; performing the first set of one or more SRS transmissions on the first SRS resource set during the first time window; and receiving an SRS indication from the network entity of one or more resources indicating the second SRS resource set.

[0171] Some example embodiments may relate to an apparatus including components for performing any of the methods described herein, such as: components for receiving a probe reference signal (SRS) configuration from a network entity, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions to the network entity will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication from the network entity; components for performing the first set of one or more SRS transmissions on the first SRS resource set during the first time window; and components for receiving from the network entity an SRS indication of one or more resources indicating the second SRS resource set.

[0172] In various example embodiments, apparatus 1110 may be controlled by memory 1112 and processor 1111 to perform the following operations: sending a probe reference signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions from the user equipment will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication; receiving the first set of one or more SRS transmissions from the user equipment on the first SRS resource set during the first time window, and measuring the first set of one or more SRS transmissions; and based on the measurement, performing SRS resource prediction.

[0173] Some example embodiments may relate to an apparatus including components for performing any of the methods described herein, such as: components for transmitting a sounding reference signal (SRS) configuration to a user equipment, the SRS configuration including at least one of the following: a first time window during which a first set of one or more SRS transmissions from the user equipment will be performed; a first SRS resource set on which the first set of one or more SRS transmissions will be performed during the first time window; a second time window during which the first set of one or more SRS transmissions will be suspended; or a second SRS resource set to be indicated by an SRS indication; components for receiving the first set of one or more SRS transmissions from the user equipment on the first SRS resource set during the first time window and measuring the first set of one or more SRS transmissions; and components for performing SRS resource prediction based on the measurement.

[0174] In various example embodiments, the apparatus 1120 may be controlled by the memory 1122 and the processor 1121 to perform the following operations: receiving a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of the following: a first configuration for performing one or more SRS transmissions to the network entity during a first time window, or a second configuration for suspending one or more SRS transmissions to the first group during a second time window; receiving a first command from the network entity for activating at least one of the first configuration or the second configuration; and, in response to the first command, performing one or more SRS transmissions to the network entity during the first time window, and suspending one or more SRS transmissions to the first group during the second time window.

[0175] Some example embodiments may relate to an apparatus including components for performing any of the methods described herein, such as: components for receiving a first probe reference signal (SRS) configuration from a network entity, the first SRS configuration including at least one of: a first configuration for performing a first set of one or more SRS transmissions to the network entity during a first time window, or a second configuration for suspending the first set of one or more SRS transmissions during a second time window; components for receiving a first command from the network entity for activating at least one of the first configuration or the second configuration; and components for performing the first set of one or more SRS transmissions to the network entity during the first time window and suspending the first set of one or more SRS transmissions during the second time window in response to the first command.

[0176] In various example embodiments, device 1110 may be controlled by memory 1112 and processor 1111 to perform the following operations: sending a first probe reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of the following: a first configuration for performing a first set of one or more SRS transmissions to the device during a first time window, or a second configuration for suspending the first set of one or more SRS transmissions during a second time window; sending a first command to the user equipment for activating at least one of the first configuration or the second configuration; receiving the first set of one or more SRS transmissions from the user equipment and measuring the first set of one or more SRS transmissions during the first time window; and performing SRS prediction based on the measurement during the second time window.

[0177] Some example embodiments may relate to an apparatus including components for performing any of the methods described herein, such as: components for sending a first sounding reference signal (SRS) configuration to a user equipment, the first SRS configuration including at least one of: a first configuration for performing a first set of one or more SRS transmissions to the apparatus during a first time window, or a second configuration for suspending the first set of one or more SRS transmissions during a second time window; components for sending a first command to the user equipment for activating at least one of the first configuration or the second configuration; components for receiving the first set of one or more SRS transmissions from the user equipment and measuring the first set of one or more SRS transmissions during the first time window; and components for performing SRS prediction based on the measurement during the second time window.

[0178] The features, structures, or characteristics of the exemplary embodiments described throughout this specification can be combined in any suitable manner into one or more exemplary embodiments. For example, the use of phrases such as "various embodiments," "some embodiments," "some embodiments," or other similar language in this specification means that a particular feature, structure, or characteristic described in connection with the exemplary embodiments can be included in at least one exemplary embodiment. Therefore, the phrases "in various embodiments," "in some embodiments," "in some embodiments," or other similar language appearing in this specification do not necessarily refer to the same set of exemplary embodiments, and the described features, structures, or characteristics can be combined in any suitable manner into one or more exemplary embodiments.

[0179] As used herein, expressions such as “at least one of the following: ” and “at least one of ” (where the list of two or more elements is connected by “and” or “or”) refer to at least one element, or at least any two or more elements, or at least all elements.

[0180] Furthermore, if necessary, the different functions or processes described above may be executed in different orders and / or in parallel with each other. Additionally, if necessary, one or more of the described functions or processes may be optional or may be combined. Therefore, the above description should be considered as an illustration of the principles and teachings of the featured example embodiments, and not as a limitation thereof.

[0181] Those skilled in the art will readily understand that the above-described exemplary embodiments can be practiced using processes of different sequences and / or hardware components in configurations different from those disclosed. Therefore, although some embodiments have been described based on these exemplary embodiments, those skilled in the art will understand that certain modifications, variations, and alternative constructions will be apparent while remaining within the spirit and scope of the exemplary embodiments.

[0182] Partial Glossary

[0183] 3GPP Third Generation Partnership Project

[0184] 5G (Fifth Generation)

[0185] 5GC fifth-generation core

[0186] 6G sixth generation

[0187] AF application functions

[0188] AI (Artificial Intelligence)

[0189] ASIC (Application-Specific Integrated Circuit)

[0190] BS base station

[0191] CBSD Citizen Broadband Radio Service Equipment

[0192] CE control elements

[0193] CN Core Network

[0194] CNN (Convolutional Neural Network)

[0195] CPU (Central Processing Unit)

[0196] CSI Channel State Information

[0197] CU Centralized Unit

[0198] DCI Downlink Control Information

[0199] DL downlink

[0200] DNN (Deep Neural Network)

[0201] DU Distributed Unit

[0202] eMBB Enhanced Mobile Broadband

[0203] eNB Evolutionary Node B

[0204] FR frequency range

[0205] gNB Next Generation Node B

[0206] GPS Global Positioning System

[0207] HDD (Hard Disk Drive)

[0208] IoT (Internet of Things)

[0209] LSTM Long Short-Term Memory

[0210] LTE Long Term Evolution

[0211] LTE-A Advanced Long Term Evolution

[0212] MAC Media Access Control

[0213] MEMS (Micro-Electro-Mechanical Systems)

[0214] MIMO (Multiple Input Multiple Output)

[0215] ML Machine Learning

[0216] mMTC (Mass Machine Type Communication)

[0217] NE network entity

[0218] NG Next Generation

[0219] NG eNB Next Generation Evolution Node B

[0220] NG-RAN (Next Generation Radio Access Network)

[0221] NN Neural Network

[0222] NR New Radio

[0223] OFDM (Orthogonal Frequency Division Multiplexing)

[0224] PDA (Personal Digital Assistant)

[0225] PDCCH (Physical Downlink Control Channel)

[0226] PDSCH (Physical Downlink Shared Channel)

[0227] PUCCH (Physical Uplink Control Channel)

[0228] PUSCH Physical Uplink Shared Channel

[0229] QoS (Quality of Service)

[0230] RAM (Random Access Memory)

[0231] RAN (Radio Access Network)

[0232] RAT Radio Access Technology

[0233] RB resource block

[0234] RE Resource Elements

[0235] RF (Radio Frequency)

[0236] RNN (Recurrent Neural Network)

[0237] ROM (Read-Only Memory)

[0238] RRC Radio Resource Control

[0239] RS reference signal

[0240] RSRP reference signal received power

[0241] Rx receiver

[0242] SSB Synchronization Signal Block

[0243] TDD (Time Division Multiplexing)

[0244] TRP Transport Point

[0245] Tx launch

[0246] UCI uplink control information

[0247] UE User Equipment

[0248] UL uplink

[0249] UMTS (Universal Mobile Telecommunications System)

[0250] UPF User Face Functions

[0251] URLLC Ultra-Reliable Low-Latency Communication

[0252] UTRAN (Universal Mobile Telecommunications System Terrestrial Radio Access Network)

[0253] WLAN (Wireless Local Area Network)

Claims

1. An apparatus for predicting an uplink reference signal, 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 device to at least: A configuration for receiving a probe reference signal (SRS) from a network entity, wherein the SRS configuration includes at least one of the following: During the first time window, a first set of one or more SRS transmissions to the network entity will be performed. A first SRS resource set, on which one or more SRS transmissions of the first group will be executed during the first time window. During the second time window, one or more SRS transmissions in the first group will be paused, or The second SRS resource set to be indicated by the SRS indication from the network entity; During the first time window, one or more SRS transmissions of the first group are performed on the first SRS resource set; as well as Receive from the network entity the SRS indication that indicates one or more resources of the second SRS resource set.

2. The apparatus according to claim 1, wherein, The SRS configuration also includes one or more beam configurations associated with the first SRS resource set, and wherein the first set of one or more SRS transmissions to the network entity is performed according to the one or more beam configurations.

3. The apparatus according to claim 1, wherein, The first group of one or more SRS transmissions to the network entity are suspended during the second time window.

4. The apparatus according to claim 1, wherein, The one or more resources of the second SRS resource set are designated for subsequent uplink transmissions, and wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the device to at least: Perform one or more subsequent uplink transmissions on one or more resources of the second SRS resource set.

5. The apparatus according to claim 4, wherein, The SRS indication further indicates uplink transmission beaming information associated with one or more resources of the second SRS resource set, and wherein the one or more subsequent uplink transmissions are performed based on the uplink transmission beaming information.

6. The apparatus according to claim 1, wherein, The one or more resources of the second SRS resource set are designated for transmission to a second set of one or more SRSs of the network entity, and wherein the at least one memory and the instructions, when executed by the at least one processor, further cause the means to at least: Perform the second set of one or more SRS transmissions on one or more resources of the second SRS resource set.

7. The apparatus according to claim 1, wherein, The one or more resources of the second SRS resource set are indicated not to be used for SRS transmission to the network entity, and wherein the SRS transmission is suspended on the one or more resources of the second SRS resource set.

8. The apparatus according to any one of claims 1 to 7, wherein, The SRS configuration is received via Radio Resource Control (RRC).

9. The apparatus according to any one of claims 1 to 7, wherein, The SRS configuration further includes: A subset of the first SRS resource set associated with each moment within the first time window; and A subset of the second SRS resource set associated with each moment within the second time window.

10. The apparatus according to any one of claims 1 to 7, wherein, The first time window is an observation window, and the observation window is configured with an SRS period and a first SRS duration; Furthermore, the SRS period indicates the period of SRS transmissions during the observation window, and the first SRS duration indicates the total duration during the observation window or the number of SRS transmissions over one or more symbol periods.

11. The apparatus according to any one of claims 1 to 7, wherein, The second time window is a prediction window, which is configured with a second SRS duration; and wherein the second SRS duration indicates the duration during which the first group of one or more SRS transmissions are paused during the prediction window.

12. The apparatus according to any one of claims 1 to 7, wherein, The first time window and the second time window overlap by an offset in time.

13. An apparatus for predicting an uplink reference signal, 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 device to at least: Sending a Sounding Reference Signal (SRS) configuration to the user equipment, the SRS configuration including at least one of the following: During the first time window, a first set of one or more SRS transmissions from the user equipment will be executed. A first SRS resource set, on which one or more SRS transmissions of the first group will be executed during the first time window. During the second time window, one or more SRS transmissions in the first group will be paused, or The second SRS resource set to be indicated by the SRS indication; During the first time window, the first group of one or more SRS transmissions are received from the user equipment on the first SRS resource set, and the first group of one or more SRS transmissions are measured. as well as Based on the measurements, SRS resource prediction is performed.

14. The apparatus according to claim 13, wherein, The SRS configuration further includes one or more beam configurations associated with the first SRS resource set, and wherein the first group of one or more SRS transmissions from the user equipment is determined to be associated with the one or more beam configurations.

15. The apparatus according to claim 13, wherein, The at least one memory and the instructions, when executed by the at least one processor, further cause the device to at least: Based on the prediction of the SRS resources, the SRS indication is determined; and The SRS instruction is sent to the user equipment.

16. The apparatus according to claim 15, wherein, The SRS indication specifies one or more resources of the second SRS resource set to be used for subsequent uplink transmissions.

17. The apparatus according to claim 16, wherein, The at least one memory and the instructions, when executed by the at least one processor, further cause the device to at least: Receive one or more subsequent uplink transmissions on one or more resources of the second SRS resource set.

18. The apparatus according to claim 17, wherein, The SRS indication further indicates uplink transmission beaming information associated with one or more resources of the second SRS resource set, and wherein the one or more subsequent uplink transmissions are determined to be associated with the uplink transmission beaming information.

19. The apparatus according to claim 15, wherein, The SRS indication specifies one or more resources of the second SRS resource set to be used for a second group of one or more SRS transmissions, and 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 the second set of one or more SRS transmissions on one or more resources of the second SRS resource set.

20. The apparatus according to claim 15, wherein, The SRS indication specifies that one or more resources in the second SRS resource set are not used for SRS transmissions from the user equipment.

21. The apparatus according to any one of claims 13 to 20, wherein, The first SRS configuration is transmitted via Radio Resource Control (RRC).

22. The apparatus according to any one of claims 13 to 20, wherein, The SRS configuration further includes: A subset of the first SRS resource set associated with each moment within the first time window; and A subset of the second SRS resource set associated with each moment within the second time window.

23. The apparatus according to any one of claims 13 to 20, wherein, The first time window is an observation window, and the observation window is configured with an SRS period and a first SRS duration; Furthermore, the SRS period indicates the period of SRS transmissions during the observation window, and the first SRS duration indicates the total duration during the observation window or the number of SRS transmissions over one or more symbol periods.

24. The apparatus according to any one of claims 13 to 20, wherein, The second time window is a prediction window, which is configured with a second SRS duration; and wherein the second SRS duration indicates the duration during which the first group of one or more SRS transmissions are paused during the prediction window.

25. The apparatus according to any one of claims 13 to 20, wherein, The first time window and the second time window overlap by an offset in time.

26. The apparatus according to any one of claims 13 to 20, wherein, The prediction of the SRS resource is achieved using one or more network-side artificial intelligence (AI) / machine learning (ML) models.

27. A method for predicting an uplink reference signal, comprising: A configuration for receiving a probe reference signal (SRS) from a network entity, wherein the SRS configuration includes at least one of the following: During the first time window, a first set of one or more SRS transmissions to the network entity will be performed. A first SRS resource set, on which one or more SRS transmissions of the first group will be executed during the first time window. During the second time window, one or more SRS transmissions in the first group will be paused, or The second SRS resource set to be indicated by the SRS indication from the network entity; During the first time window, one or more SRS transmissions of the first group are performed on the first SRS resource set; as well as Receive from the network entity the SRS indication that indicates one or more resources of the second SRS resource set.

28. A method for predicting an uplink reference signal, comprising: Sending a Sounding Reference Signal (SRS) configuration to the user equipment, the SRS configuration including at least one of the following: During the first time window, a first set of one or more SRS transmissions from the user equipment will be executed. A first SRS resource set, on which one or more SRS transmissions of the first group will be executed during the first time window. During the second time window, one or more SRS transmissions in the first group will be paused, or The second SRS resource set to be indicated by the SRS indication; During the first time window, the first group of one or more SRS transmissions are received from the user equipment on the first SRS resource set, and the first group of one or more SRS transmissions are measured. as well as Based on the measurements, SRS resource prediction is performed.

Images