Conditional layer 1 (L1) measurement

Abstract

Some embodiments include systems, apparatuses, articles of manufacture, methods, and / or computer program products, and / or combinations and sub-combinations thereof, for conditional layer 1 (L1) measurements. Some embodiments include a user equipment (UE) that may receive a configuration signal including an activation / deactivation condition for conditional layer 1 (L1) measurements, and determine that the activation / deactivation condition is satisfied for a target cell. The UE may activate / deactivate conditional L1 measurements corresponding to the target cell. In some embodiments, in response to an activated conditional L1 measurement satisfying a threshold, the UE may initiate a cell handover to a target cell. In some embodiments, the activation / deactivation is based on a Layer 3 (L3) measurement corresponding to the target cell, a location of the UE, or a determined time corresponding to the UE.

Description

Technical Field

[0001] The described implementation scheme relates to inter-cell mobility in wireless communication systems. Background Technology

[0002] Related fields Wireless communication systems support inter-cell mobility between base stations (BS) and communication equipment such as user equipment (UE). Summary of the Invention

[0003] Some embodiments include systems, apparatus, articles of manufacture, methods, and / or computer program products and / or combinations and sub-combinations thereof for conditional Layer 1 (L1) measurements. Some embodiments include a user equipment (UE) capable of receiving a configuration signal including activation conditions for conditional Layer 1 (L1) measurements and determining that the activation conditions are met for a target cell. The UE can activate the conditional L1 measurement corresponding to the target cell. The UE can obtain data corresponding to the activated conditional L1 measurement and transmit the data to a network (e.g., via a serving cell base station).

[0004] In some implementations, to determine if the activation condition is met, the UE can compare the Layer 3 (L3) measurement corresponding to the target cell with the corresponding L3 measurement of the serving cell and determine if the comparison meets a threshold. In some examples, to determine if the activation condition is met, the UE can determine its location and determine if the relative distance between its location and the target cell meets a threshold. In some examples, to determine if the activation condition is met, the UE can determine its location and, at least based on its location, determine when to initiate the activation condition for the target cell.

[0005] In some examples, the UE can determine that a deactivation condition is met for a target cell and deactivate the conditional L1 measurements corresponding to the target cell. In some implementations, when the indication for conditional L1 measurements is a semi-persistent indication, the UE can receive a Radio Resource Control (RRC) signal including a change in the carrier aggregation (CA) / dual connectivity (DC) of the serving cell, and transmit updated conditional L1 measurement capabilities in response to the RRC signal. In some implementations, when the indication for conditional L1 measurements is a dynamic indication, the UE can receive a Media Access Control (MAC) Control Element (CE) signal including a change in the carrier aggregation (CA) / dual connectivity (DC) of the serving cell, and transmit updated conditional L1 measurement capabilities in response to the MAC CE signal.

[0006] Some implementations include a base station (BS) capable of receiving one or more conditional L1 measurement capabilities corresponding to a UE, and transmitting a configuration signal including activation conditions corresponding to the one or more conditional L1 measurement capabilities. The BS can receive conditional L1 measurements corresponding to a target cell and based on the activation conditions.

[0007] In some implementations, the activation condition corresponds to the L3 measurement of the serving cell of the BS and the L3 measurement of the target cell. In some examples, the L3 measurement of the serving cell includes the reference received power (RSRP) or the signal-to-interference-plus-noise ratio (SINR). In some implementations, the activation condition corresponds to the location of the UE and the distance between the location and the target cell.

[0008] In some examples, when the indication of conditional L1 conditions is semi-persistent, the BS may transmit an RRC signal including a change corresponding to the carrier aggregation or dual connectivity (CA / DC) of the serving cell, and receive an updated conditional L1 measurement capability from one or more conditional L1 measurement capabilities in response to the RRC signal. In some implementations, when the indication of conditional L1 conditions is dynamic, the BS may transmit a MACCE signal including a change corresponding to the carrier aggregation (CA / DC) of the serving cell, and receive an updated conditional L1 measurement capability from one or more conditional L1 measurement capabilities in response to the MACCE signal. Attached Figure Description

[0009] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate the disclosed contents and, together with the specification, further serve to explain the principles of the disclosure and enable those skilled in the art to make and use the disclosure.

[0010] Figure 1 Example systems for conditional layer 1 (L1) measurements are illustrated according to some embodiments of this disclosure.

[0011] Figure 2 A block diagram of an example wireless system for conditional L1 measurement is illustrated according to some embodiments of the present disclosure.

[0012] Figure 3A Example activation of conditional L1 measurement according to some embodiments of this disclosure is illustrated.

[0013] Figure 3B Examples of conditional L1 measurement deactivation according to some embodiments of this disclosure are illustrated.

[0014] Figure 4 Examples of signaling for conditional L1 measurement according to some embodiments of this disclosure are illustrated.

[0015] Figure 5 Examples of user equipment (UE) capabilities for conditional L1 measurement according to some embodiments of this disclosure are illustrated.

[0016] Figure 6 It is an example computer system used to implement some implementation schemes or parts thereof.

[0017] Figure 7 Examples of measurements for handover according to some embodiments of this disclosure are illustrated.

[0018] Figure 8 Example methods for supporting conditional L1 measurements for a UE according to some embodiments of this disclosure are illustrated.

[0019] Figure 9 Example methods for supporting conditional L1 measurements for base stations (BS) according to some embodiments of this disclosure are illustrated.

[0020] This disclosure is described with reference to the accompanying drawings. In the drawings, the same reference numerals generally indicate the same or similarly functional elements. Additionally, the leftmost numeral of the reference numerals generally appears first in the drawings. Detailed Implementation

[0021] Some implementations include systems, apparatus, articles, methods, and / or computer program products and / or combinations and sub-combinations thereof for conditional Layer 1 (L1) measurements. To support L1 / Layer 2 (L2) triggered inter-cell mobility (LTM), user equipment (UE) may need to perform L1 measurements on neighboring cells.

[0022] Figure 7Example 700 illustrates handover measurements according to some embodiments of this disclosure. Example 700 may include a UE 710 and base stations (BS) 720a-720c connected to the Internet. UE 710 may use coarse beams for cell search and Layer 3 (L3) measurements 713a-713e to select BS 720a as the serving cell and find candidate target cells (e.g., neighboring cell 1 and neighboring cell 2). After the coarse beams, UE 710 may begin using fine beams 715a-715c to obtain L1 measurements for the serving cell. UE 710 may also use fine beams 715d-715e (more fine beams may be used, but only a few are shown for simplicity) to obtain L1 measurements from neighboring cells 1 and 2 to determine channel quality and whether the neighboring cells are likely target cells to which UE 710 can perform cell handover (e.g., handover). As those skilled in the art will understand, fine beams have a narrower beamwidth than corresponding coarse beams. Therefore, in Example 700, performing fine beam scanning to find and measure L1 measurements corresponding to neighboring cells 1 and 2 results in unnecessary L1 measurements, which can potentially jeopardize system throughput. For example, BS 720a, as the serving cell, can be configured to perform L3 and L1 measurements for UE 710 via Radio Resource Control (RRC) signaling. Upon receiving the RRC signal, UE 710 begins L1 measurements for neighboring cells. The fine beam training latency of performing fine beam training increases the measurement latency at UE 710, which can lead to performance (e.g., system throughput) delays as measurements are sent to BS 720a. Furthermore, UE 710 consumes power to perform and report measurements. To address the aforementioned issues regarding latency, system throughput, and power consumption, some implementations include configuring the UE with conditional L1 measurements.

[0023] Figure 1 An example system 100 for conditional L1 measurement is illustrated according to some embodiments of this disclosure. System 100 includes a user equipment (UE) 110 and base stations (BS) 120a-120c connected to the Internet. UE 110 may be a computing electronic device, such as a smartphone, a cellular phone, and for simplicity, may include other computing devices, including but not limited to laptops, desktop computers, tablets, personal assistants, routers, monitors, televisions, printers, and home appliances. BS 120a-120c may include, but is not limited to, a wireless base station, an enhanced node BS (eNB), a fifth-generation new radio BS (gNB), or a transmitting and receiving point (TRP) of a wireless network.

[0024] UE 110 can access the network via BS 120a (e.g., via a random access channel (RACH)) and send one or more conditional L1 measurement capabilities of UE 110 to BS 120a. The network (e.g., BS 120a) can configure UE 110 with L3 measurements. In some embodiments, BS 120a can also configure UE 110 with conditional L1 measurements and corresponding conditions based on one or more conditional L1 measurement capabilities of UE 110. In some embodiments, UE 110 can activate conditional L1 measurements on neighboring cells when the corresponding conditions are met (e.g., compliant). Additionally, UE 110 can deactivate conditional L1 measurements on neighboring cells when the corresponding conditions are met. Having conditional L1 measurements avoids UE 110 having to perform L1 measurements on neighboring cells (e.g., fine beam training), as described in Example 700. Therefore, activated and / or deactivated conditional L1 measurements can reduce measurement latency, reduce UE 110 power consumption, and improve UE 110 throughput.

[0025] After conditional L1 measurements are activated, UE 110 can perform L1 measurements according to the corresponding configuration and send the collected conditional L1 measurements (e.g., fine beam measurements from the serving cell and / or neighboring cells) to the serving cell (e.g., BS 120a). In some implementations, BS 120a initiates a handover to a neighboring cell based on the collected conditional L1 measurements. In some implementations, UE 110 initiates a handover to a neighboring cell (e.g., by sending conditional L1 measurements to BS 120a).

[0026] In some implementations, one or more conditional L1 measurement capabilities of UE 110 may include indications C1, C2, and C3. Indication C1 may indicate whether UE 110 supports conditional L1 measurements on neighboring cells (e.g., neighboring cell 1 and / or neighboring cell 2). Indication C1 may be a parameter identified per UE 110, per frequency range (e.g., FR1, FR2), or per carrier frequency (e.g., ssbFrequency). In some implementations, indication C1 may include a target cell ID (e.g., physical cell ID (PCI)), a reference signal (e.g., synchronization signal block (SSB), channel state information (CSI)-reference signal (RS) or a corresponding configuration (e.g., SS / physical broadcast channel (PBCH) block measurement timing configuration (SMTC))), and a measurement quantity (e.g., L1-reference signal received power (RSRP) or L1-signal-to-interference-plus-noise ratio (SINR) and / or L1 reporting configuration).

[0027] Instruction C2 can indicate the following: iThe maximum number of neighboring cells that the UE 110 supports for conditional L1 measurements. ii The maximum number of resources from neighboring cells that the UE supports conditional L1 measurements on; and / or iii The indicator C2 is signaled whether it is statically, semi-persistently (e.g., via RRC signaling), or dynamically (e.g., via Media Access Control (MAC) Control Element (CE) signaling).

[0028] Indication C3 can indicate the type of activation or deactivation condition. UE 110 determines the type of activation or deactivation condition to decide whether to activate or deactivate the corresponding conditional L1 measurement for the neighboring cell. Examples of indication C3 include, but are not limited to: L3 measurements (e.g., L3-RSRP, L3-SINR corresponding to a coarse beam); the location of UE 110; and / or time (e.g., estimated based on a high-speed train timetable).

[0029] Figure 2 A block diagram of an example wireless system 200 for conditional L1 measurement according to some embodiments of this disclosure is illustrated. Reference may be made for illustrative purposes and not for limiting purposes. Figure 1 To describe the elements Figure 2 For example, system 200 can be an electronic device of system 100: any electronic device of UE 110 or BS 120a-120c. System 200 includes one or more processors 265, transceiver 270, communication interface 275, communication infrastructure 280, memory 285, and antenna 290. Memory 285 may include random access memory (RAM) and / or cache, and may include control logic (e.g., computer instructions) and / or data. One or more processors 265 can execute instructions stored in memory 285 to perform operations that enable wireless system 200 to transmit and receive wireless communications supporting conditional L1 measurements described herein. In some embodiments, one or more processors 265 may be “hard-decoded” to perform these functions herein. According to some embodiments, transceiver 270 transmits and receives wireless communication signals including wireless communications supporting conditional L1 measurements, and may be coupled to one or more antennas 290 (e.g., 290a, 290b). In some implementations, transceiver 270a (not shown) may be coupled to antenna 290a, and different transceivers 270b (not shown) may be coupled to antenna 290b. Communication interface 275 allows system 200 to communicate with other devices, which may be wired and / or wireless. Communication infrastructure 280 may be a bus. Antenna 290 may include one or more antennas, which may be the same or different types.

[0030] Figure 3AExample 300 illustrates the activation of conditional L1 measurement according to some embodiments of this disclosure. For illustrative purposes and not for limiting purposes, elements of other figures in this disclosure may be referenced for description. Figure 3A .For example, Figure 3A UE310, BS 320b, and BS 320c can correspond to Figure 1 The UE 310, BS 120b, and BS 120c are used. In Example 300, UE 310 can access the network via a BS and a serving cell (not shown). Instead of performing L1 measurements for neighboring cells (e.g., neighboring cells 1 and 2) as in Example 700, UE 310 is configured with conditional L1 measurements and corresponding conditions, wherein the satisfaction of the corresponding conditions activates and / or deactivates the conditional L1 measurement for a given neighboring cell. Therefore, when UE 310 determines that an activation condition is met for a neighboring cell (e.g., a potential target cell to which UE 310 can initiate a handover), the corresponding conditional L1 measurement can be activated for that neighboring cell (potential target cell). The activation conditions for one or more conditional L1 measurements can be based on L3 measurements, the location of UE 310, and / or the time corresponding to UE 310, as further described below.

[0031] In Example 300, UE 310 determines that the activation condition may include a measurement object corresponding to one or more configurations of neighboring cell 1 (e.g., linked with a MeasObjectId having additional information about the corresponding threshold). When the activation condition corresponding to neighboring cell 1 is met, UE 310 activates the corresponding conditional L1 measurement (e.g., collects the conditional L1 measurement and reports the conditional L1 measurement to the serving cell and the serving BS). The activated corresponding conditional L1 measurement is shown as communication 330 with neighboring cell 1 (e.g., via BS 320b). In Example 300, when UE 310 determines that the activation condition is not met, UE 310 does not activate the conditional L1 measurement corresponding to neighboring cell 2 (e.g., BS 320c) (shown as communication 340).

[0032] In some implementations, activation / deactivation conditions may be based on L3 measurements (e.g., based on coarse beam measurements) and may specify value thresholds and / or relative value thresholds. UE 310 may be configured with a number of L3 measurement objects. The network (e.g., via the serving cell BS) may associate conditional L1 measurements with one or more L3 measurement objects having value (e.g., absolute) and / or relative thresholds. UE 310 will periodically perform L3 measurements according to the L3 measurement object configuration. Once the measurement result of an L3 measurement object meets the configured conditions, UE 310 will activate / deactivate the conditional L1 measurement. In the value threshold example, UE 310 determines the activation condition based on L3-RSRP measurements on a target cell (e.g., neighboring cell 1 or neighboring cell 2) compared to a threshold X1 dBm (e.g., a value threshold of X1 = -88 dBm). After UE 310 determines that the L3-RSRP measurement result on neighboring cell 1 meets the activation condition (e.g., exceeding the threshold X1 dBm), UE 310 can activate the corresponding conditional L1 measurement on neighboring cell 1 (e.g., L1-RSRP, L1-SINR for various fine beams), which is collectively shown as communication 330. The UE can measure the CSI-RS resources and / or SSB resources in the nzp-CSI-RS-ResourceSet and / or csi-SSB-ResourceSet configured for L1-RSRP within the CSI-ResourceConfig settings. In the relative threshold example, the L3 measurement condition can be based on a relative threshold, for example, X2 dB (e.g., X2 = 3 dB) greater than the relative threshold of the serving cell. When UE 310 determines that the L3-RSRP for neighboring cell 1 is X2 greater than the L3-RSRP of the serving cell, UE 310 activates the corresponding conditional L1 measurement on neighboring cell 1, shown as communication 330.

[0033] In some implementations, the activation / deactivation conditions can be based on the location of UE 310. For example, UE 310 can use non-terrestrial network (NTN) broadcasts of satellite ephemeris, Positioning Reference Signal (PRS) measurements, and / or Global Navigation Satellite System (GNSS) to calculate the distance to other BSs (e.g., BS 120b, BS 120c). For example, the location of other BSs can be obtained via System Information Block (SIB). The relative distance can be obtained via downlink propagation delay estimation. UE 310 can determine whether the activation / deactivation conditions are met based on a threshold or relative threshold. UE 310 can determine that the condition is met when the distance to neighboring cell 1 (BS 120b) is less than a threshold X1 (e.g., X1 = 1000m for non-NTN networks), and UE 310 is approaching neighboring cell 1, and UE 310 activates the corresponding conditional L1 measurement at UE 310 for neighboring cell 1, shown as communication 330. UE 310 can determine that the distance from UE 310 to BS 320b satisfies a relative threshold X2 (e.g., X2 = 100m, which is shorter than the distance between UE 310 and the BS serving the cell). Therefore, the location activation condition can be met, and the conditional L1 measurement corresponding to neighboring cell 1 at UE 310 is activated, shown as communication 330. In another example, UE 310 can determine that the distance from UE 310 to BS 320c is longer relative to the distance between UE 310 and the BS serving the cell. Therefore, the location activation condition is not met, and the conditional L1 measurement corresponding to neighboring cell 2 at UE 310 is not initiated, shown as communication 340.

[0034] In some implementations, the activation / deactivation conditions can be based on the predictable time of UE 310's movement, such as when UE 310 corresponds to a client equipment (CPE) fixed to a high-speed train. In this example, UE 310 may know (e.g., be configured with) the train timetable and the location of the base station corresponding to the high-speed train station. UE 310 fixed to a high-speed train carriage can determine that the train carriage (and therefore UE 310) will arrive at the next station at 4:10 PM according to the train timetable. Therefore, at 4:10 PM, the time condition can be met within an acceptable margin (e.g., within one or two minutes of 4:10 PM), whereby UE 310 can activate the conditional L1 measurement corresponding to neighboring cell 1 and BS 320b, shown as communication 330. In some implementations, at 4:10 PM, the condition is not met, and therefore UE 310 does not activate the conditional L1 measurement corresponding to neighboring cell 2 and BS 320c, shown as communication 340.

[0035] After activating conditional L1 measurements, UE 110 can send the collected conditional L1 measurements (e.g., fine beam measurements from the serving cell and / or neighboring cell 1) to the BS of the serving cell. In some implementations, based on the collected conditional L1 measurements, the BS of the serving cell initiates a handover to neighboring cell 1. In some implementations, UE 310 initiates a handover to neighboring cell 1.

[0036] Figure 3B Example 350 deactivation of conditional L1 measurement according to some embodiments of this disclosure is illustrated. For illustrative purposes and not for limiting purposes, elements of other figures in this disclosure may be referenced for description. Figure 3B .For example, Figure 3B UE310, BS 320b, and BS 320c can correspond to Figure 1 The UE 110 and BS 120b and BS 120c are mentioned. In Example 350, UE 310 can access the network via a BS and a serving cell (not shown), and UE 310 can be configured with conditional L1 measurements and corresponding conditions, wherein the satisfaction of the corresponding conditions causes the conditional L1 measurement to be activated and / or deactivated for a given neighboring cell. Therefore, when UE 310 determines that a deactivation condition is met for a neighboring cell (e.g., a potential target cell to which UE 310 can initiate handover), the corresponding conditional L1 measurement can be deactivated for that neighboring cell (potential target cell). The deactivation condition for one or more conditional L1 measurements can be based on L3 measurements, the location of UE 310, and / or the time corresponding to UE 310.

[0037] In Example 350, UE 310 determines that the deactivation condition may include measurement objects corresponding to one or more configurations of neighboring cell 1 (e.g., linked with MeasObjectId having additional information about the corresponding threshold X). When the deactivation condition corresponding to neighboring cell 1 is met, UE 310 deactivation is shown as the corresponding conditional L1 measurement (e.g., collecting and reporting conditional L1 measurements) via communication 370 (e.g., via BS 320b) with neighboring cell 1. In Example 300, when UE 310 determines that the deactivation condition is not met, UE 310 continues to perform the corresponding conditional L1 measurement (shown as communication 360) with neighboring cell 2 (e.g., BS 320c).

[0038] In some implementations, activation / deactivation conditions can be based on L3 measurements and can be specified thresholds and / or relative thresholds. In a threshold example, UE 310 determines the deactivation condition based on an L3-RSRP measurement on the target cell (e.g., neighboring cell 1 or neighboring cell 2) that is less than a threshold Y1 dBm (e.g., threshold Y1 = -91 dBm). After UE 310 determines that the L3-RSRP measurement result on neighboring cell 1 is satisfied (e.g., less than threshold Y1 dBm), UE 310 can deactivate the corresponding conditional L1 measurements (e.g., L1-RSRP, L1-SINR) on neighboring cell 1, as shown in communication 370. In a relative threshold example, the L3 measurement condition can be based on a relative threshold Y2 dB (e.g., Y2 = 3 dB) being less than the relative threshold of the serving cell. When UE 310 determines that the L3-RSRP for neighboring cell 1 is less than Y2, UE 310 deactivates the corresponding conditional L1 measurement on neighboring cell 1, as shown in communication 370.

[0039] In some implementations, activation / deactivation conditions may be based on the location of UE 310. For example, UE 310 may use NTN broadcasts of satellite ephemeris, PRS measurements, and / or GNSS to calculate the distance to other BSs (e.g., BS 120b, BS 120c). For example, the location of other BSs may be obtained via SIB. UE 310 may determine whether the activation / deactivation conditions are met based on a threshold or relative threshold. UE 310 may determine that the condition is met when the distance to neighboring cell 1 (BS 120b) is greater than threshold Y1 (e.g., Y1 = 150m), and UE 310 is moving away from neighboring cell 1, and UE 310 deactivates the corresponding conditional L1 measurement for neighboring cell 1 at UE 310, shown as communication 370. UE 310 may determine that the distance from UE 310 to BS 320b meets a relative threshold Y2 (e.g., Y2 = 75m, which is greater than the distance between UE 310 and the BS serving the cell). Therefore, the location deactivation condition is met, and the conditional L1 measurement at UE 310 corresponding to neighboring cell 1 is interrupted, as shown in communication 370. In another example, UE 310 may determine that the distance from UE 310 to BS 320c is shorter (e.g., closer) relative to the distance between UE 310 and the BS serving the cell. Therefore, the location deactivation condition is not met, and the conditional L1 measurement at UE 310 corresponding to neighboring cell 2 continues, as shown in communication 360.

[0040] In some implementations, the activation / deactivation conditions can be based on the predictable time of UE 310's movement, such as when UE 310 corresponds to a CPE fixed to a high-speed train. In this example, UE 310 may know (e.g., be configured with) the train timetable and the location of the base station corresponding to the train station. UE 310 fixed to a high-speed train carriage can determine that the train carriage (and therefore UE 310) will arrive at the next station at 4:10 PM according to the train timetable. Therefore, at 4:10 PM, the time condition can be met within an acceptable margin (e.g., within one or two minutes of 4:10 PM), so UE 310 can deactivate the conditional L1 measurement corresponding to neighboring cell 1 and BS 320b, shown as communication 370. In some implementations, at 4:10 PM, UE 310 may continue with the conditional L1 measurement corresponding to neighboring cell 2 and BS 320c, shown as communication 360.

[0041] Figure 5 Example 500 illustrates a UE capability for conditional L1 measurement according to some embodiments of this disclosure. For illustrative purposes and not for limitation, elements of other figures in this disclosure may be referenced for description. Figure 5 For example, Example 500 could be one or more conditional L1 measurement capabilities provided by UE 110 to BS 120a. Therefore, BS 120a can configure signals (such as from...) Figure 1 The RRC signal sent from BS 120a to UE 110 includes one or more conditional L1 measurement capabilities. Example 500 may include... Conditional L1 measurement 510 ConditionalL 1 measurementNumberOfCell 520 and ConditionalL1measurementNumberOfResource 530. In some implementation schemes, Conditional L1 measurement 510 can correspond to indication C1, which indicates whether UE 110 supports conditional L1 measurements on neighboring cells. Conditional L1 measurement 510 can be described per UE (e.g., UE 110), per FR (e.g., FR1, FR2), or per carrier frequency.

[0042] In some implementation schemes, ConditionalL1measurementNumberOfCell 520 refers to Indication C2, which indicates the maximum number of cells with configured conditional L1 measurements. In other words, UE 110 can notify BS 120a (e.g., the serving cell) of the maximum number of neighboring cells on which UE 110 can support conditional L1 measurements (e.g., based on activation / deactivation conditions).

[0043] In some implementation schemes, ConditionalL1measurementNumberOfResource530 refers to indication C2 indicating the maximum number of resources from neighboring cells that support conditional L1 measurements on the UE (e.g., the maximum number of SSB / CSI-RS with configured conditional L1 measurements).

[0044] In some implementation schemes, for ConditionalL1measurementNumberOfCell 520 and / or Condi tionalL1measurementNumberOfResource The indication of 530 can be described per UE (e.g., UE 110), per FR, or per carrier frequency.

[0045] In some examples, the per-UE, per-FR, and / or per-carrier indication can be a static indication, a semi-persistent indication, or a dynamic indication. The static C2 indication does not change even when changes occur in the network (e.g., carrier aggregation (CA) / dual connectivity (DC) configuration).

[0046] In some implementations, the per-UE, per-FR, and / or per-carrier frequency C2 indication can be a semi-persistent indication. For example, after accessing the network via BS 120a, for a given carrier aggregation (CA) / dual connectivity (DC) configuration, the UE can report a semi-persistent indication per UE or per FR, where ConditionalL1measurementNumberOfCell=8. Subsequently, the network can change (e.g., add a secondary cell (SCell)). Therefore, BS 120a can send an RRC configuration signal indicating the activation of the additional SCell to UE 110. Upon receiving the RRC configuration signal, UE 110 can notify the network (e.g., BS 120a) of the change (e.g., sending ConditionalL1measurementNumberOfCell=5).

[0047] In some implementations, the per-UE, per-FR, and / or per-carrier frequency C2 indication can be dynamic. Therefore, after each CA activation / deactivation in the network, UE 110 reports the C2 indication supported per UE or per FR. For example, after accessing the network via BS120a, for a given CA / DC configuration, the UE can report a dynamic indication per UE or per FR, where ConditionalL1measurementNumberOfCell=8. Subsequently, the network can change (e.g., add a secondary cell (SCell)). Therefore, BS 120a can send a MAC CE signal to UE 110 indicating the activation of the additional SCell. Upon receiving the MAC CE signal, UE 110 can notify the network (e.g., BS 120a) of the change (e.g., sending ConditionalL1measurementNumberOfCell=6).

[0048] Figure 4 Example 400 of signaling for conditional L1 measurement according to some embodiments of this disclosure is illustrated. For illustrative purposes and not for limitation, elements of other figures in this disclosure may be referenced for description. Figure 4 For example, Example 400 could be from... Figure 1 The RRC signal sent by BS 120a to UE 110. Example 400 may include Conditional L1 measurement 410, which may be Figure 5 of Conditional L1 measurement 510. For example, ConditionalL1 measurement 410 could be an indication C1 indicating that UE 110 supports conditional L1 measurement. Example 400 may also include activation conditional L1 measurement Activation Condition 420, which may correspond to Figure 3A The activation conditions described herein. Example 400 may also include a deactivation condition L1measurementDeactivationCondition 430, which corresponds to, as shown in the example. Figure 3B The deactivation conditions described in Example 400. Example 400 also includes, as per [reference to...] Figure 3A and Figure 3B Examples of thresholds X1 450, X2 440, Y1 455, and Y2 445 described in the value thresholds and relative value thresholds are provided. For example, when the activation condition is L3-RSRP, the value threshold X1 can correspond to X1 450, and the deactivation condition value threshold Y1 can correspond to Y1 455. For relative values, the activation condition relative value threshold X2 can correspond to X2 440, and the deactivation condition relative value threshold Y2 can correspond to Y2 445.

[0049] Figure 8 Example method 800 for supporting conditional L1 measurement of a UE according to some embodiments of the present disclosure is illustrated. For illustrative purposes and not for limiting purposes, elements of other figures in this disclosure may be referenced for description. Figure 8 For example, method 800 can be derived from... Figure 1 UE 110 Figure 2 System 200 or Figure 3A or Figure 3B The method is executed by UE 310. For convenience, method 800 is described with respect to UE 110.

[0050] At 805, UE 110 can determine whether to access the network. If it accesses the network (e.g., via RACH and BS 120a), method 800 proceeds to 810. Otherwise, method 800 remains at 805.

[0051] At 810, UE 110 can send conditional L1 measurement capabilities (e.g., C1, C2 and / or C3) to the network (e.g., to BS 120a).

[0052] At 815, UE 110 can receive configuration signals for conditional L1 measurements from BS 120a (e.g., via...). Figure 4 The RRC signaling shown has conditions and corresponding thresholds (such as X1, X2, Y1, Y2) for conditional L1 measurements to be performed by UE 110. Configuration signals from BS 120a respond to the conditional L1 measurement capability transmitted by UE 110.

[0053] At 820, UE 110 can determine whether indication C2 (e.g., per UE, per FR, per carrier frequency) is a static indication. If the C2 indication is static, method 800 proceeds to 825. Otherwise, method 800 proceeds to 865.

[0054] At 825, UE 110 can determine whether the activation conditions are met (for example, see...). Figure 3A If the activation condition is met, method 800 proceeds to 830. Otherwise, method 800 proceeds to 850.

[0055] At 830, UE 110 can activate the corresponding conditional L1 measurement for the target cell associated with the activation condition (e.g., Figure 3A (Communication 330). In this document, L1 measurements include one or more of L1-RSRP and L1-SINR.

[0056] At 835, UE 110 can send conditional L1 measurements to the network (e.g., to BS 120a of the serving cell).

[0057] At 840, UE 110 can determine whether to trigger a target cell based on a threshold measured by conditional L1 (e.g., Figure 3A Cell handover (e.g., handover) of neighboring cell 1). When cell handover is triggered, method 800 proceeds to 845. Otherwise, method 800 proceeds to 850.

[0058] At point 845, UE 110 can initiate... Figure 3A Cell handover with neighboring cell 1 (e.g., handover with BS 320b).

[0059] At 850, UE 110 can determine whether the deactivation conditions are met (for example, see...). Figure 3B When the deactivation condition is met, method 800 proceeds to 855. Otherwise, method 800 returns to 820.

[0060] At 855, UE 110 can deactivate the corresponding conditional L1 measurement for the target cell (e.g., communication 370 with neighboring cell 1 of BS320b).

[0061] At 860, UE 110 can send the remaining active corresponding conditional L1 measurements to the network (e.g., to BS 120a of the serving cell).

[0062] At 865, UE 110 can determine whether indication C2 is a semi-persistent indication. If C2 is semi-persistent, method 800 proceeds to 870. Otherwise, method 800 proceeds to 880.

[0063] At 870, UE 110 can determine whether it has received an indication of a CA / DC change in the network (e.g., via an RRC signal from BS 120a). If an indication of a CA / DC change is received, method 800 proceeds to 875. Otherwise, method 800 returns to 825.

[0064] At 875, UE 110 can send an updated C2 value to the network (e.g., send an updated C2 value to BS120a based on the received RRC signal).

[0065] At 880, UE 110 can determine whether it has received a dynamic indication of a change in CA / DC in the network (e.g., via a MAC CE signal from BS 120a). If an indication of a change in CA / DC is received, method 800 proceeds to 885. Otherwise, method 800 returns to 825.

[0066] At 885, UE 110 can send an updated C2 value to the network (e.g., send an updated C2 value to BS 120a based on the received MAC CE signal).

[0067] Figure 9 An example method 900 for supporting conditional L1 measurements of a BS according to some embodiments of the present disclosure is illustrated. For illustrative purposes and not for limiting purposes, elements of other figures in this disclosure may be referenced for description. Figure 9 For example, method 900 can be derived from... Figure 1 BS 120a or Figure 2 The system 200 is running.

[0068] At 905, BS 120a can determine whether UE 110 has already accessed the network via the serving cell. If UE 110 has already accessed the network, method 900 proceeds to 910. Otherwise, method 900 remains at 905.

[0069] At 910, BS 120a can receive conditional layer 1 (L1) measurement capabilities (e.g., C1, C2 and / or C3) from UE 110.

[0070] At 915, BS 120a can send configuration signals for conditional L1 measurements to UE 110 based at least on the conditional L1 measurement capabilities provided by UE 110.

[0071] At 920, BS 120a can determine whether indicator C2 is static. If C2 is static, method 900 proceeds to 935. Otherwise, method 900 proceeds to 965.

[0072] At 935, BS 120a can determine whether a conditional L1 measurement for the target cell has been received from UE 110. If UE 110 has determined that the activation condition is met, the corresponding L1 measurement is received by BS 120a, and method 900 proceeds to 945. Otherwise, method 900 returns to 920.

[0073] At 945, BS 120a can determine whether to initiate a cell handover to the target cell. In some implementations, BS 120a initiates handover to a neighboring cell based on the received corresponding L1 measurement. In some implementations, UE 110 initiates handover to a neighboring cell. When a cell handover is initiated, method 900 proceeds to 950. Otherwise, method 900 returns to 920.

[0074] At 950, BS 120a can update the data accordingly (e.g., UE 110 is now associated with a neighboring cell (the new serving cell)).

[0075] At 965, BS 120a can determine whether indicator C2 is semi-persistent. If indicator C2 is semi-persistent, method 900 proceeds to 970. Otherwise, method 900 proceeds to 980.

[0076] At 970, BS 120a can determine whether a CA / DC change has occurred. If one has occurred, BS 120a can send an indication of the CA / DC change to UE 110 via RRC signaling. Otherwise, if no CA / DC change has occurred, method 900 returns to 935.

[0077] At 975, BS 120a can receive the updated C2 value from UE 110 based on the sent RRC signaling.

[0078] At 980, BS 120a can determine whether a CA / DC change has occurred. If one has occurred and C2 indication is dynamic, BS 120a can send a CA / DC change notification to UE 110 via the MAC CE signal; method 900 proceeds to 985. Otherwise, method 900 returns to 935.

[0079] At 985, BS 120a can receive updated C2 values ​​from the UE based at least on the MAC CE signal sent to UE 110.

[0080] For example, using such Figure 6 The computer system 600 shown can be implemented using one or more well-known computer systems to carry out various implementation schemes. The computer system 600 can be any well-known computer capable of performing the functions described herein. For example, and without limitation, Figure 1 BS 120 and / or UE 110, Figure 2 System 200 Figure 3A and Figure 3B Examples 300 and 350 Figure 4 Example 400 of generating or receiving Figure 5 Example 500 Figure 8 Method 800 and Figure 9 Method 900 (and / or other devices and / or components shown in the figure) can be implemented using computer system 600 or a portion thereof.

[0081] Computer system 600 includes one or more processors (also called central processing units or CPUs), such as processor 604. Processor 604 is connected to a communication infrastructure 606, which may be a bus. Each of the one or more processors 604 may be a graphics processing unit (GPU). In embodiments, a GPU is a processor designed for processing dedicated electronic circuitry for mathematically intensive applications. The GPU may have an efficient parallel architecture for parallel processing of large blocks of data, such as general mathematically intensive data in computer graphics applications, images, videos, etc.

[0082] Computer system 600 also includes user input / output devices 603, such as monitors, keyboards, pointing devices, etc., that communicate with communication infrastructure 606 via user input / output interface 602. Computer system 600 also includes main memory or primary memory 608, such as random access memory (RAM). Main memory 608 may include one or more levels of cache. Main memory 608 already stores control logic (e.g., computer software) and / or data.

[0083] The computer system 600 may also include one or more secondary storage devices or memories 610. Secondary storage 610 may include, for example, a hard disk drive 612 and / or a removable storage device or drive 614. The removable storage drive 614 may be a floppy disk drive, a magnetic tape drive, an optical disk drive, an optical storage device, a magnetic tape backup device, and / or any other storage device / drive.

[0084] Removable storage drive 614 can interact with removable storage unit 618. Removable storage unit 618 includes a computer-usable or readable storage device on which computer software (control logic) and / or data are stored. Removable storage unit 618 can be a floppy disk, magnetic tape, optical disc, DVD, optical storage disk, and / or any other computer data storage device. Removable storage drive 614 reads from and / or writes to removable storage unit 618 in a well-known manner.

[0085] According to some embodiments, secondary storage 610 may include other means, tools, or other methods for allowing computer programs and / or other instructions and / or data to be accessed by computer system 600. Such means, tools, or other methods may include, for example, removable storage unit 622 and interface 620. Examples of removable storage unit 622 and interface 620 may include a program box and box interface (such as an interface present in video game devices), a removable memory chip (such as EPROM or PROM) and associated socket, a memory stick and USB port, a memory card and associated memory card slot, and / or any other removable storage unit and associated interface.

[0086] Computer system 600 may also include a communication or network interface 624. Communication interface 624 enables computer system 600 to communicate and interact with any combination of remote devices, remote networks, remote entities, etc. (individually and collectively referred to by reference numeral 628). For example, communication interface 624 may allow computer system 600 to communicate with remote device 628 via communication path 626, which may be wired and / or wireless, and may include any combination of LAN, WAN, Internet, etc. Control logic and / or data may be sent to and from computer system 600 via communication path 626.

[0087] The operations described in the foregoing embodiments can be implemented in a wide variety of configurations and architectures. Therefore, some or all of the operations described in the foregoing embodiments can be performed in hardware, software, or both. In some embodiments, tangible, non-transitory devices or articles of art include tangible, non-transitory computer-usable or readable media on which control logic (software) is stored, also referred to herein as computer program products or program storage devices. This includes, but is not limited to, computer system 600, main memory 608, secondary storage 610, and removable storage units 618 and 622, and tangible articles of art embodying any combination thereof. Such control logic, when executed by one or more data processing devices (such as computer system 600), causes such data processing devices to operate as described herein.

[0088] Based on the teachings contained in this disclosure, it will be apparent to those skilled in the art how to use [other methods]. Figure 6 The embodiments of this disclosure may be made and used with data processing devices, computer systems, and / or computer architectures other than those shown herein. Specifically, the embodiments may operate in conjunction with software, hardware, and / or operating system implementations other than those described herein.

[0089] It should be understood that the Detailed Description section, rather than the Summary and Abstract section, is intended to interpret the claims. The Summary and Abstract section may set forth one or more, but not all, exemplary embodiments of this disclosure as contemplated by the inventors, and therefore is not intended to limit this disclosure or the appended claims in any way.

[0090] Although this disclosure has been described herein with reference to exemplary embodiments in exemplary fields and applications, it should be understood that this disclosure is not limited thereto. Other embodiments and modifications are possible and are within the scope and spirit of this disclosure. For example, and without limiting the generality of this paragraph, embodiments are not limited to the software, hardware, firmware, and / or entities illustrated in the figures and / or described herein. Furthermore, embodiments (whether or not explicitly described herein) have significant utility in fields and applications beyond those described herein.

[0091] The implementation scheme has been described herein using functional building blocks that exemplify the implementation of specific functions and their relationships. For ease of description, the boundaries of these functional building blocks have been arbitrarily defined herein. Alternative boundaries may be defined as long as the specified functions and relationships (or their equivalents) are performed appropriately. Furthermore, alternative implementation schemes may use sequences of functional blocks, steps, operations, methods, etc., that differ from those described herein.

[0092] References to "an implementation," "implementation," "example implementation," or similar phrases herein indicate that the described implementation may include specific features, structures, or characteristics, but each implementation need not necessarily include such features, structures, or characteristics. Furthermore, such phrases do not necessarily refer to the same implementation. Moreover, when specific features, structures, or characteristics are described in connection with implementations, those skilled in the art will understand that these features, structures, or characteristics can be incorporated into other implementations, whether explicitly mentioned or described herein.

[0093] The breadth and scope of this disclosure should not be limited by any of the exemplary embodiments described above, but should be defined solely by the appended claims and their equivalents.

[0094] This disclosure anticipates that entities responsible for the collection, analysis, disclosure, transmission, storage, or other use of such personal information data will comply with robust privacy policies and / or privacy measures. Specifically, such entities should implement and adhere to privacy policies and measures that are recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy and security of personal information data. Such policies should be easily accessible to users and should be updated as the collection and / or use of data changes. Personal information from users should be collected for legitimate and reasonable entity purposes and should not be shared or sold outside of these legitimate purposes. Furthermore, such collection / sharing should only occur upon receipt of informed consent from the user. Additionally, such entities should consider taking any necessary steps to protect and safeguard the right to access such personal information data and ensure that other entities with access to such personal information data comply with the privacy policies and procedures of those other entities. Furthermore, such entities may subject themselves to third-party assessments to demonstrate their compliance with widely accepted privacy policies and privacy practices. Additionally, policies and practices should be adapted to the specific types of personal information data collected and / or accessed, and to applicable laws and standards, including considerations of specific jurisdictions. For example, in the United States, the collection or acquisition of certain health data may be governed by federal and / or state laws, such as the Health Insurance Transfer and Accountability Act (HIPAA); while in other countries, health data may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy measures should be advocated for different types of personal data in each country.

Claims

1. A user equipment (UE), the user equipment (UE) comprising: transceiver; and A processor coupled to the transceiver, the processor being configured to: The transceiver receives a configuration signal including activation conditions for conditional layer 1 (L1) measurements. Determine that the activation conditions are met for the target cell; Activate the conditional L1 measurement corresponding to the target cell; as well as Data corresponding to the conditional L1 measurement is transmitted via the transceiver.

2. The UE of claim 1, wherein, in order to determine that the activation condition is met, the processor is configured to: The Layer 3 (L3) measurement corresponding to the target cell is compared with the corresponding L3 measurement of the serving cell; and Determine that the comparison satisfies the threshold.

3. The UE of claim 1, wherein, in order to determine that the activation condition is met, the processor is configured to: Determine the location of the UE; and The relative distance between the location and the target cell is determined to meet a threshold.

4. The UE of claim 1, wherein, in order to determine that the activation condition is met, the processor is configured to: Determine the location of the UE; and The timing for initiating the activation conditions for the target cell is determined at least based on the location of the UE.

5. The UE according to claim 1, wherein the processor is further configured to: Determine that the deactivation condition is met for the target cell; and Deactivate the conditional L1 measurement corresponding to the target cell.

6. The UE of claim 1, wherein the processor is further configured to: Receive radio resource control (RRC) signals including changes in carrier aggregation (CA) / dual connectivity (DC) of the serving cell; and In response to the RRC signal, an updated conditional L1 measurement capability is sent.

7. The UE of claim 1, wherein the processor is further configured to: Receives a Media Access Control (MAC) control element (CE) signal, including changes to carrier aggregation (CA) / dual connectivity (DC) of the serving cell; and In response to the MAC CE signal, an updated conditional L1 measurement capability is sent.

8. A base station (BS), the base station (BS) comprising: transceiver; and A processor coupled to the transceiver, the processor being configured to: Receive one or more conditional Layer 1 (L1) measurement capabilities corresponding to the user equipment (UE); Transmit via the transceiver a configuration signal including activation conditions corresponding to the one or more conditional L1 measurement capabilities; and Receive conditional L1 measurements corresponding to the target cell and based on the activation conditions.

9. The BS according to claim 8, wherein the activation condition corresponds to the Layer 3 (L3) measurement of the serving cell of the BS and the L3 measurement of the target cell.

10. The BS of claim 9, wherein the L3 measurement of the serving cell includes reference received power (RSRP) or signal-to-interference-plus-noise ratio (SINR).

11. The BS of claim 8, wherein the activation condition corresponds to the location of the UE and the distance between the location and the target cell.

12. The BS of claim 8, wherein the processor is further configured to: Transmitting radio resource control (RRC) signals including changes to carrier aggregation (CA) / dual connectivity (DC) corresponding to the serving cell; and In response to the RRC signal, receive an updated conditional L1 measurement capability from the one or more conditional L1 measurement capabilities.

13. The BS of claim 8, wherein the processor is further configured to: Transmitting a Medium Access Control (MAC) control element (CE) signal corresponding to a change in carrier aggregation (CA) / dual connectivity (DC) of the serving cell; and In response to the MAC CE signal, an updated conditional L1 measurement capability is received from one or more conditional L1 measurement capabilities.

14. A method, the method comprising: Receive configuration signals including activation conditions for conditional measurements in Layer 1 (L1); Determine that the activation conditions are met for the target cell; Activate the conditional L1 measurement corresponding to the target cell; as well as Send the data corresponding to the conditional L1 measurement.

15. The method of claim 14, wherein determining that the activation condition is satisfied comprises: The Layer 3 (L3) measurement corresponding to the target cell is compared with the corresponding L3 measurement of the serving cell; as well as Determine that the comparison satisfies the threshold.

16. The method of claim 14, wherein determining that the activation condition is satisfied comprises: Determine the location of the user equipment (UE); as well as The relative distance between the location and the target cell is determined to meet a threshold.

17. The method of claim 14, wherein determining that the activation condition is satisfied comprises: Determine the location of the user equipment (UE); as well as The timing for initiating the activation conditions for the target cell is determined at least based on the location of the UE.

18. The method of claim 14, further comprising: It is determined that the deactivation condition is met for the target cell; as well as Deactivate the conditional L1 measurement corresponding to the target cell.

19. The method of claim 14, further comprising: Receive radio resource control (RRC) signals including changes in carrier aggregation (CA) / dual connectivity (DC) of the serving cell; as well as In response to the RRC signal, an updated conditional L1 measurement capability is sent.

20. The method of claim 14, further comprising: Receives Media Access Control (MAC) control element (CE) signals, including changes in carrier aggregation (CA) / dual connectivity (DC) of the serving cell; as well as In response to the MAC CE signal, an updated conditional L1 measurement capability is sent.

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