Method, apparatus and computer program

Abstract

There is provided an apparatus comprising means for receiving one or more termination configurations from an access node, the one or more termination configurations comprising one or more termination conditions associated with termination of execution of one or more measurements; beginning to perform the one or more measurements according to the first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and terminating performance of the one or more measurements according to the first measurement configuration based on the determination.

Description

TECHNICAL FIELD

[0001] The present application relates to methods, apparatus, systems and computer programs, and in particular, but not exclusively, to terminating the execution of measurements. BACKGROUND

[0002] A communication system can be seen as a facility that enables communication sessions between two or more entities such as user terminals, base stations and / or other nodes by providing carriers which are connected to the entities involved in a communication session. A communication system can be provided for example by means of a communication network and one or more compatible communication devices. The communication sessions can comprise communication of data for example for carrying communications such as voice, video, electronic mail (email), text message, multimedia and / or content data and / or the like. Non-limiting examples of services provided include two-way or multi-way calls, data communication or multimedia services and access to a data network system, such as the Internet.

[0003] In a wireless communication system at least a part of the communication sessions between at least two stations occurs through wireless links. Examples of wireless systems include public land mobile networks (PLMN), satellite based communication systems and different wireless local networks, for example wireless local area networks (WLAN). Some wireless systems can be divided into cells and are therefore often referred to as cellular systems.

[0004] A user can access the communication system by means of an appropriate communication device or terminal. The user's communication device can be referred to as user equipment (UE) or user equipment. The communication device is provided with an appropriate signal receiving and transmitting apparatus for enabling communication, for example for enabling access to a communication network or direct communication with other users. The communication device can access the carriers provided by stations, for example base stations of a cell, and transmit and / or receive communication thereon.

[0005] The communication system and associated devices typically operate in accordance with a given standard or specification which sets out what the various entities associated with the system are permitted to do and how that should be implemented. Communication protocols and / or parameters are also typically defined which have to be used for communication. An example of a communications system is the UTRAN (3G radio). Other examples of communications systems are the Universal Mobile Telecommunications System (UMTS) radio access technology and the Long Term Evolution (LTE) of so-called 5G or New Radio (NR) networks. NR is standardized by the third generation partnership project (3GPP). SUMMARY

[0006] According to one aspect, there is provided an apparatus comprising means for: receiving, from an access node, one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements; starting performance of the one or more measurements according to a first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and based on the determination, terminating performance of the one or more measurements according to the first measurement configuration.

[0007] The means can further be for receiving, from the access node, a prioritized list comprising a priority order of one or more measurement configurations for performing the one or more measurements, wherein the first measurement configuration is a measurement configuration having a highest priority among the one or more measurement configurations.

[0008] The means can further be for, in response to terminating performance of the one or more measurements according to the first measurement configuration, starting performance of the one or more measurements according to a second measurement configuration having a next highest priority after the first measurement configuration.

[0009] The means can further be for determining that a termination condition associated with the second measurement configuration is satisfied, and terminating performance of the one or more measurements according to the second measurement configuration.

[0010] The means can further be for determining that a total amount of time spent performing the one or more measurements reaches or exceeds a total measurement time limit, and in response to determining that the total amount of time spent performing the one or more measurements reaches or exceeds the total measurement time limit, terminating performance of the one or more measurements according to all measurement configurations.

[0011] The means can further be for receiving, from the access node, the total measurement time limit.

[0012] The total measurement time limit can be comprised in the one or more termination configurations.

[0013] The termination conditions can comprise one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell has been found in a carrier after a specified amount of time; no cell above a specified measurement value has been found in a particular carrier within a specified amount of time; the apparatus enters a particular location; the apparatus enters or is in a particular energy state; the apparatus is associated with a particular application and / or service state, and the particular application and / or service state is terminated; and a camped cell of the apparatus changes.

[0014] The means can further be for sending, to the access node, a message comprising information indicating that measurement results based on the one or more measurements are available; receiving, from the access node, a request for the measurement results; and sending, to the access node, the measurement results.

[0015] According to an aspect, there is provided an apparatus comprising means for: transmitting, to a user equipment, one or more termination configurations comprising one or more termination conditions associated with termination of execution of one or more measurements at the user equipment.

[0016] The means can further be for: transmitting, to the user equipment, a prioritized list comprising a priority order of one or more measurement configurations for execution of one or more measurements.

[0017] The means can further be for: transmitting, to the user equipment, a total measurement time limit, wherein in response to an amount of total time spent by the user equipment in executing one or more measurements reaching or exceeding the total measurement time limit, the one or more measurements according to all measurement configurations are to be terminated.

[0018] The total measurement time limit can be comprised in the one or more termination configurations.

[0019] The termination conditions can comprise one or more of: a measurement according to a given measurement configuration has been executed for a maximum time limit; no cell has been found in a carrier after a specified amount of time; no cell above a specified measurement value has been found in a particular carrier within a specified amount of time; the user equipment enters a particular location; the user equipment enters or is in a particular energy state; the user equipment is associated with a particular application and / or service state and the particular application and / or service state is terminated; and a camped cell of the user equipment changes.

[0020] The means can further be for: receiving, from the user equipment, a message comprising information indicating that measurement results based on the one or more measurements are available; transmitting, to the user equipment, a request for the measurement results; and receiving, from the user equipment, the measurement results.

[0021] According to an aspect, there is provided an apparatus comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive, from an access node, one or more termination configurations comprising one or more termination conditions associated with termination of execution of one or more measurements; start execution of the one or more measurements according to a first measurement configuration; based on the one or more measurements, determine that at least one termination condition associated with the first measurement configuration is satisfied; and based on the determination, terminate execution of the one or more measurements according to the first measurement configuration.

[0022] The at least one processor can cause the apparatus to further: receive, from the access node, a prioritized list comprising a priority order of one or more measurement configurations for performing one or more measurements, wherein the first measurement configuration is a measurement configuration having a highest priority among the one or more measurement configurations.

[0023] The at least one processor can cause the apparatus to further, in response to terminating performance of the one or more measurements according to the first measurement configuration, begin performance of the one or more measurements according to a second measurement configuration having a next highest priority after the first measurement configuration.

[0024] The at least one processor can cause the apparatus to further: determine that a termination condition associated with the second measurement configuration is satisfied, and terminate performance of the one or more measurements according to the second measurement configuration.

[0025] The at least one processor can cause the apparatus to further: determine that a total amount of time spent performing the one or more measurements reaches or exceeds a total measurement time limit; and in response to determining that the total amount of time spent performing the one or more measurements reaches or exceeds the total measurement time limit, terminate performance of the one or more measurements according to all measurement configurations.

[0026] The at least one processor can cause the apparatus to further: receive, from the access node, the total measurement time limit.

[0027] The total measurement time limit can be included in the one or more termination configurations.

[0028] The termination condition can comprise one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell is found in a carrier after a specified amount of time; no cell above a specified measurement value is found in a particular carrier within a specified amount of time; the apparatus enters a particular location; the apparatus enters or is in a particular energy state; the apparatus is associated with a particular application and / or service state, and the particular application and / or service state is terminated; and a camped cell of the apparatus changes.

[0029] The at least one processor can cause the apparatus to further: send, to the access node, a message comprising information indicating that measurement results based on the one or more measurements are available; receive, from the access node, a request for the measurement results; and send, to the access node, the measurement results.

[0030] According to an aspect, there is provided an apparatus comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: send, to a user equipment, one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

[0031] The at least one processor may further enable the device to send a priority sorting list to the user equipment, the priority sorting list including a priority order of one or more measurement configurations for performing one or more measurements.

[0032] The at least one processor may further enable the device to: send a total measurement time limit to the user equipment, wherein in response to the total amount of time spent by the user equipment performing one or more measurements reaching or exceeding the total measurement time limit, one or more measurements configured according to all measurements will be terminated.

[0033] Total measurement time limits are included in one or more termination configurations.

[0034] Termination conditions include one or more of the following: a measurement according to a given measurement configuration has been performed for the maximum time limit; no cell is found in the carrier after a specified amount of time; no cell with a higher measurement value is found in a specific carrier within a specified amount of time; the user equipment enters a specific location; the user equipment enters or is in a specific energy state; the user equipment is associated with a specific application and / or service state, and the specific application and / or service state is terminated; and the user equipment's camped cell changes.

[0035] The at least one processor can enable the device to further: receive a message from a user equipment, the message including information indicating that measurement results based on one or more measurements are available; send a request for the measurement results to the user equipment; and receive the measurement results from the user equipment.

[0036] According to one aspect, a method is provided, comprising: receiving one or more termination configurations from an access node, the one or more termination configurations including one or more termination conditions associated with the termination of execution of one or more measurements; initiating execution of one or more measurements according to a first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and terminating, based on the determination, the execution of the one or more measurements according to the first measurement configuration.

[0037] The method may further include: receiving a priority sorting list from an access node, the priority sorting list including a priority order of one or more measurement configurations for performing one or more measurements, wherein the first measurement configuration is the measurement configuration with the highest priority among the one or more measurement configurations.

[0038] The method may further include: in response to terminating the execution of one or more measurements according to a first measurement configuration, initiating the execution of one or more measurements according to a second measurement configuration having the next highest priority after the first measurement configuration.

[0039] The method can further comprise determining that a termination condition associated with the second measurement configuration is satisfied and terminating performance of the one or more measurements according to the second measurement configuration.

[0040] The method can further comprise determining that a total amount of time spent performing the one or more measurements reaches or exceeds a total measurement time limit and, in response to determining that the total amount of time spent performing the one or more measurements reaches or exceeds the total measurement time limit, terminating performance of the one or more measurements according to all measurement configurations.

[0041] The method can further comprise receiving the total measurement time limit from the access node.

[0042] The total measurement time limit can be included in the one or more termination configurations.

[0043] The termination condition can comprise one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell has been found in a carrier after a specified amount of time; no cell above a specified measurement value has been found in a particular carrier within a specified amount of time; the apparatus enters a particular location; the apparatus enters or is in a particular energy state; the apparatus is associated with a particular application and / or service state and the particular application and / or service state is terminated; and a camped cell of the apparatus changes.

[0044] The method can further comprise sending a message to the access node, the message comprising information indicating that measurement results based on the one or more measurements are available; receiving a request for the measurement results from the access node; and sending the measurement results to the access node.

[0045] According to one aspect, there is provided a method comprising: sending one or more termination configurations to a user equipment, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

[0046] The method can further comprise sending a priority ordering list to the user equipment, the priority ordering list comprising a priority order of one or more measurement configurations for performing the one or more measurements.

[0047] The method can further comprise sending a total measurement time limit to the user equipment, wherein in response to a total amount of time spent by the user equipment performing the one or more measurements reaching or exceeding the total measurement time limit, the one or more measurements according to all measurement configurations are to be terminated.

[0048] The total measurement time limit can be included in the one or more termination configurations.

[0049] The termination conditions can include one or more of: the measurements according to the given measurement configuration have been performed for a maximum time limit; no cell has been found in the carrier after a specified amount of time; no cell has been found in a particular carrier above a specified measurement value within a specified amount of time; the user equipment enters a particular location; the user equipment enters or is in a particular energy state; the user equipment is associated with a particular application and / or service state, and the particular application and / or service state is terminated; and a camped cell of the user equipment changes.

[0050] The method can further include receiving a message from the user equipment, the message including information indicating that measurement results based on the one or more measurements are available; sending a request to the user equipment for the measurement results; and receiving the measurement results from the user equipment.

[0051] According to one aspect, there is provided a computer readable medium comprising instructions which, when executed by an apparatus, cause the apparatus to at least perform the following: receiving one or more termination configurations from an access node, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements; starting performance of the one or more measurements according to a first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and based on the determination, terminating performance of the one or more measurements according to the first measurement configuration.

[0052] The instructions, when executed by the apparatus, can cause the apparatus to further perform: receiving a prioritization list from the access node, the prioritization list comprising a priority order of one or more measurement configurations for performing the one or more measurements, wherein the first measurement configuration is a measurement configuration having a highest priority of the one or more measurement configurations.

[0053] The instructions, when executed by the apparatus, can cause the apparatus to further perform: in response to terminating performance of the one or more measurements according to the first measurement configuration, starting performance of the one or more measurements according to a second measurement configuration, the second measurement configuration having a next highest priority after the first measurement configuration.

[0054] The instructions, when executed by the apparatus, can cause the apparatus to further perform: determining that a termination condition associated with the second measurement configuration is satisfied, and terminating performance of the one or more measurements according to the second measurement configuration.

[0055] The instructions, when executed by the apparatus, can cause the apparatus to further perform: determining that a total amount of time spent performing the one or more measurements reaches or exceeds a total measurement time limit; and in response to determining that the total amount of time spent performing the one or more measurements reaches or exceeds the total measurement time limit, terminating performance of the one or more measurements according to all measurement configurations.

[0056] The instructions, when executed by the apparatus, can cause the apparatus to further perform receiving, from the access node, a total measurement time limit.

[0057] The total measurement time limit is included in one or more termination configurations.

[0058] The termination conditions can include one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell has been found in a carrier after a specified amount of time; no cell above a specified measurement value has been found in a particular carrier within a specified amount of time; the apparatus enters a particular location; the apparatus enters or is in a particular energy state; the apparatus is associated with a particular application and / or service state and the particular application and / or service state is terminated; and a camped cell of the apparatus changes.

[0059] The instructions, when executed by the apparatus, can cause the apparatus to further perform sending, to the access node, a message including information indicating that measurement results based on one or more measurements are available; receiving, from the access node, a request for the measurement results; and sending, to the access node, the measurement results.

[0060] According to one aspect, there is provided a computer-readable medium comprising instructions that, when executed by an apparatus, cause the apparatus to perform at least the following: sending, to a user equipment, one or more termination configurations including one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

[0061] The instructions, when executed by the apparatus, can cause the apparatus to further perform sending, to the user equipment, a prioritized list including a priority order of one or more measurement configurations for performing one or more measurements.

[0062] The instructions, when executed by the apparatus, can cause the apparatus to further perform sending, to the user equipment, a total measurement time limit, wherein one or more measurements according to all measurement configurations are to be terminated in response to a total amount of time spent by the user equipment performing the one or more measurements reaching or exceeding the total measurement time limit.

[0063] The total measurement time limit can be included in one or more termination configurations.

[0064] The termination conditions can include one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell has been found in a carrier after a specified amount of time; no cell above a specified measurement value has been found in a particular carrier within a specified amount of time; the apparatus enters a particular location; the apparatus enters or is in a particular energy state; the apparatus is associated with a particular application and / or service state and the particular application and / or service state is terminated; and a camped cell of the apparatus changes.

[0065] The instructions, when executed by the apparatus, can cause the apparatus to further perform: receiving a message from the user equipment, the message comprising information indicating that measurement results based on one or more measurements are available; sending a request for the measurement results to the user equipment; and receiving the measurement results from the user equipment.

[0066] According to an aspect, there is provided a non-transitory computer readable medium comprising program instructions that, when executed by an apparatus, cause the apparatus to perform at least the method according to any of the preceding aspects.

[0067] In the foregoing, a number of different embodiments have been described. It should be appreciated that further embodiments can be provided by a combination of any two or more of the above-described embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0068] Embodiments will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 A representation of a network system is shown in accordance with some example embodiments; Figure 2 A representation of a control apparatus is shown in accordance with some example embodiments; Figure 3 A representation of an apparatus is shown in accordance with some example embodiments; Figure 4 An example of early measurement reporting behavior for a user equipment in RRC idle mode is shown; Figure 5 An example of early measurement reporting behavior for a user equipment in RRC inactive mode is shown; Figure 6 A method is shown in accordance with some examples; and Figure 7 A signaling exchange is shown in accordance with some examples. DETAILED DESCRIPTION

[0069] A non-exhaustive list of some abbreviations used throughout this disclosure is provided below for reference: 5QI 5G QoS Indicator CA Carrier Aggregation CSI Channel State Information DC Dual Connectivity DL Downlink DU Distributed Unit DRX Discontinuous Reception eEMR Release 18 and above enhancements to early measurement reporting eMBB Enhanced Mobile Broadband EMR Early Measurement Reporting FR1 frequency range 1 FR1 / FR2 frequency range 1 / 2 FR2 frequency range 2 L1 layer 1 (physical layer) L3 layer 3 (network layer) MR multi-radio Multi-RX UE capable of performing RX / TX on multiple cells. Can be dual active protocol stack (DAPS) or different from DAPS NR new radio Pcell primary cell PDCCH physical downlink control channel PRACH physical random access channel PSCell primary cell of SCG PUCCH physical uplink control channel PUSCH physical uplink shared channel RF radio frequency or radio front end RLC radio link control (sublayer of layer 2 in the RAN) RRC radio resource control RS reference signal RSRP reference signal / symbol received power RX / TX receiver / transmitter Scell secondary cell SPCell special cell / primary cell of a master cell group or secondary cell group SCG secondary cell group SIB system information block SN secondary node UE user equipment UL uplink URLLC ultra-reliable low-latency communication In the following, certain embodiments are explained with reference to mobile communication devices capable of communicating via a wireless cellular system and a mobile communication system serving such mobile communication devices. Before explaining example embodiments in detail, certain general principles are explained with reference to Figure 1 , Figure 2 and Figure 3 certain general principles of wireless communication systems, their access systems and mobile communication devices are explained briefly to help understand the technology underlying the described examples.

[0070] Figure 1An illustration of a 5G system (5GS) is shown. The 5GS can consist of a terminal or user equipment (UE), a 5G radio access network (5G RAN) or next generation radio access network (NG-RAN), a 5G core network (5GC), one or more application functions (AFs), and one or more data networks (DN).

[0071] The 5G-RAN can comprise one or more gNodeBs (GNBs) or one or more gNodeB (GNB) distributed unit functions connected to one or more gNodeB (GNB) centralized unit functions.

[0072] The 5GC can comprise the following entities: a network slice selection function (NSSF); a network exposure function; a network repository function (NRF); a policy control function (PCF); a unified data management (UDM); an application function (AF); an authentication server function (AUSF); an access and mobility management function (AMF); and a session management function (SMF). Figure 1 Various interfaces (N1, N2, etc.) that can be implemented between various elements of the system are also shown.

[0073] Figure 2 An example of a control apparatus 200 for controlling a function of a 5G RAN or 5GC as shown in Figure 1 is shown. The control apparatus can comprise at least one random access memory (RAM) 211a, at least one read only memory (ROM) 211b, at least one processor 212, 213, and an input / output interface 214. The at least one processor 212, 213 can be coupled to the RAM 211a and the ROM 211b. The at least one processor 212, 213 can be configured to execute appropriate software code 215. The software code 215 may, for example, allow one or more steps to be performed to perform one or more aspects. The software code 215 can be stored in the ROM 211b. The control apparatus 200 can be interconnected with another control apparatus 200 controlling another function of the 5G RAN or 5GC. In some embodiments, each function of the 5G RAN or 5GC comprises a control apparatus 200. In alternative embodiments, two or more functions of the 5G RAN or 5GC can share a control apparatus.

[0074] Figure 3 An example of a terminal 300, e.g. Figure 1The terminal 300 can be provided by any device capable of sending and receiving radio signals. Non-limiting examples include a user equipment, a mobile station (MS) or mobile device such as a mobile phone or so-called smartphone, a computer provided with a wireless interface card or other wireless interface facility (e.g., USB dongle), a personal data assistant (PDA) or a tablet provided with wireless communication capabilities, a machine-type communication (MTC) device, an Internet of Things (IoT) type communication device, or any combination of these, etc. The terminal 300 can provide, for example, data communication for carrying communications. The communications can be one or more of voice, electronic mail (email), text message, multimedia, data, machine data, etc.

[0075] The terminal 300 can receive signals over the air or radio interface 307 via appropriate apparatus for receiving and can transmit signals via appropriate apparatus for transmitting radio signals. In the present context, the term "over the air" or "wireless" is intended to include transmission through any wireless medium or any combination of wireless media. The signals can be transmitted and received on a dedicated channel or shared channel. Figure 3 The transceiver apparatus is designated schematically by block 306. The transceiver apparatus 306 can be provided for example by means of a radio part and associated antenna arrangement. The antenna arrangement can be arranged internally or externally to the mobile device.

[0076] The terminal 300 can be equipped with at least one processor 301, at least one memory ROM 302a, at least one RAM 302b, and other possible components 303 for the software and hardware aided execution of tasks it is designed to perform, including the control of access and communication with access systems and other communication devices. The at least one processor 301 is coupled to the RAM 302b and the ROM 302a. The at least one processor 301 can be configured to execute appropriate software code 308. The software code 308 can for example allow the execution of one or more aspects. The software code 308 can be stored in the ROM 302a.

[0077] The processor, memory, and other relevant control apparatus can be provided on an appropriate circuit board and / or in a chip set. This feature is denoted by reference 304. The device can optionally have a user interface such as a keypad 305, a touch sensitive screen or touchpad, a combination thereof, etc. Optionally, depending on the type of device, one or more of a display, a speaker, and a microphone can be provided.

[0078] In 3GPP Release 16, the Early Measurement Report (EMR) feature was introduced to enable faster establishment or reconfiguration, particularly for Carrier Aggregation (CA) / Dual Connectivity (DC). When the UE is in Radio Resource Control (RRC) idle or RRC inactive state, the EMR feature allows the UE to perform frequency measurements for SCell availability. When transitioning from RRC idle or RRC inactive state to RRC connected state, the UE can transmit the generated Early Measurement Report to the base station associated with the primary cell (PCell) to reduce delays in establishing DC or CA.

[0079] In some EMR schemes, the UE may be equipped with a timer (e.g., T331) and given the option to measure specific frequencies. The camped cell may send signaling to the UE, such as system information (e.g., SIB2 and SIB11), which provides information about whether the cell is interested in EUTRA and / or NR measurements and which cells and carrier frequencies the UE should measure.

[0080] When in an idle or inactive state, the UE can perform measurements. If an RRC establishment request is triggered while the timer is still running, the UE can report its measurement availability in an RRC message (e.g., an RRC establishment complete message). If the UE is in an inactive state, it can send measurements to the network in an RRC message (e.g., an RRC recovery complete message). The network can then request measurements based on the reported measurement availability. The UE can provide measurements to the network, for example, in response to receiving a request from the network.

[0081] However, it is important to note that measurements may become invalid after the timer expires, and therefore, if measurements are provided after the timer expires, the network may not be able to use them.

[0082] Figure 4 An example of EMR behavior for a UE in RRC idle mode is shown.

[0083] At step 400, the UE may be configured with information for performing EMR while in RRC connection mode and subsequently releasing the RRC connection. This information may include a timer (e.g., T331) and an optional frequency for measuring EMR.

[0084] At step 402, the UE can receive information such as SIB 11 from the camped cell to determine which cells and which carrier frequency to measure for the early measurement.

[0085] At step 404, the UE can receive information, such as SIB 2, from the camped cell to determine whether the camped cell is of interest for measurements. The measurements can be for New Radio (NR) and / or Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (EUTRA).

[0086] Steps 402 and 404 can be performed after each time the UE reselects to a new cell. The UE can update its EMR configuration based on the received information. That is, when the UE reselects to a new cell, the UE can receive information (e.g., SIB 11 and / or SIB 2) and update its measurement configuration accordingly.

[0087] At step 406, the UE can perform measurements based on the information received in steps 400-404.

[0088] At step 408, the UE procedure can trigger sending an RRC request to the network. The trigger can be any suitable trigger, such as but not limited to after initiating a control message or after initiating a mobile originated data communication as a response to a paging message.

[0089] At step 410, the UE can send an RRC request message to the network. At step 412, the network can respond with an RRC setup message.

[0090] If the procedure is triggered while the timer indicated in step 400 is active, the UE can follow the procedure below. Otherwise, the UE can not report any measurements already acquired during the connection setup procedure.

[0091] At step 414, the UE can send an RRC setup complete message to the network. The RRC setup complete message can include information indicating the availability of measurements.

[0092] At step 416, security keys can be exchanged between the UE and the network to establish a security context.

[0093] At step 418, the network sends an information request message to the UE to request to provide measurement results.

[0094] At step 420, the UE sends a response message containing the requested measurement results to the network.

[0095] Figure 5 An example of EMR behavior for a UE in RRC inactive mode is shown.

[0096] At step 500, the UE can be configured with information for performing EMR. The information can include a timer (e.g., T331) and optional frequencies to measure EMR.

[0097] At step 502, the UE can receive information such as SIB 11 from the camped cell to determine which cells and carrier frequencies to measure for early measurements.

[0098] At step 504, the UE can receive information such as SIB 2 from the camped cell to determine whether the camped cell is of interest for measurements. The measurements can be for New Radio (NR) and / or Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (EUTRA).

[0099] At step 506, the UE can perform measurements based on the information received in steps 500- step 504.

[0100] At step 508, the UE procedure can trigger that an RRC request will be sent to the network. The trigger can be any suitable trigger such as, but not limited to, a response to a paging message after initiating a control message or after initiating a mobile originated data communication.

[0101] At step 510, the UE can send an RRC request message to the network.

[0102] At step 512, the network can respond with an RRC resume message. The RRC resume message can include a request for measurements.

[0103] If the procedure is triggered while the timer indicated in step 500 is active, the UE can follow the procedure below. Otherwise, the UE can not report any measurements already taken during the connection establishment procedure.

[0104] At step 514, security keys can be exchanged between the UE and the network to establish a security context.

[0105] At step 516, the UE sends an RRC resume complete message to the network containing the requested measurement results.

[0106] In both examples of Figure 4 and Figure 5 the UE indicating available measurements during the timer presents a limited use case for measurements. As such, the measurements can not be used or considered by the network after the timer expires.

[0107] However, in order to prepare and establish a primary secondary cell group cell (PScell) / secondary cell (Scell) in dual connectivity (DC) carrier aggregation (CA) (DCCA), the network can need to wait for EMR measurements, which, as explained above, are available after full connection establishment (and exchange of security keys) including several message exchanges between the UE and the network plus processing time, all of which can delay the DCCA establishment. If the delay is too long, the measurements can no longer be valid as the timer can have expired.

[0108] In some embodiments, the network or elements of the network (e.g., the RAN) can determine one or more measurement validity configurations based on the EMR settings. The validity configurations can identify one or more of: a list of cells, a list of frequency bands, a list of carriers, a measurement period, an SSB period of a cell, a signal strength, and / or other characteristics that need to be met for the EMR measurements to be valid. Thus, the validity configurations can be understood as conditions that need to be met for the EMR measurements to be valid.

[0109] Each validity configuration can be associated with a validity identifier. The validity configurations / identifiers can be communicated to the UE, and the UE can start performing the measurements specified by the validity configurations. Based on the validity configurations, the UE can perform the measurements and transmit the results to the network through signaling such as RRC connection setup complete messages. These signaling can indicate one or more of: available measurements, valid measurements, an age of the measurements, and can be specific to the cells / carriers / frequency bands configured in the validity configurations. The network can then utilize this information to identify appropriate SCells or PSCells for the UE to trigger the addition procedure of SCells and PSCells.

[0110] However, a drawback of such implementations is that they can cause the UE to perform additional measurements to enhance the DCCA establishment procedure. Such implementations and other solutions can have the drawback of forcing the UE to extra energy consumption, especially when the UE is not under the coverage of any cell that is capable of providing dual connectivity or carrier aggregation.

[0111] That is, in some cases, configuring the UE to perform EMR measurements (and in particular, configuring the UE to perform additional EMR measurements) can result in extra energy consumption at the UE side without any benefit. Some examples of the present application can limit the measurements that the UE is configured to perform, thereby reducing unnecessary UE energy consumption.

[0112] Reference Figure 6 illustrating a method according to some examples.

[0113] At 600, a method includes receiving one or more termination configurations from an access node, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements.

[0114] At 602, the method includes beginning performance of the one or more measurements according to a first measurement configuration.

[0115] At 604, the method includes determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied.

[0116] At 606, the method includes terminating, based on the determination, performance of the one or more measurements according to the first measurement configuration.

[0117] In some examples, steps 600-606 can be performed by an apparatus such as a user equipment (UE).

[0118] At 608, a method includes sending one or more termination configurations to a user equipment, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

[0119] In some examples, step 608 can be performed by a network node such as an access node (e.g., a gNB).

[0120] In some examples, the network can provide the UE with information indicating when to terminate EMR measurements or the conditions under which to terminate EMR measurements. This information, referred to herein as a termination configuration, can be one or more termination conditions for a measurement configuration (e.g., how long the UE should perform measurements according to the measurement configuration, and / or how long the entire measurement procedure should last). In some examples, the network can provide the UE with more than one termination configuration. The UE can then perform measurements based on the measurement configuration(s) and the termination configuration(s).

[0121] Based on the termination condition(s), the UE can stop performing measurements for a given configuration. Example termination conditions include, but are not limited to: The measurement of a given resource has been performed for a maximum time limit; No cell has been found in a carrier after a specified amount of time; No cell above a specified RSRP value has been found in a particular carrier within a specified amount of time.

[0122] The UE enters a particular location (e.g., the UE moves to a particular location defined by, for example, a tracking area (TA) or global positioning system coordinates); The UE enters or is in a particular energy state, such as a low battery state; The apparatus is associated with a particular application and / or service state, and the particular application and / or service state is terminated; and Resident cell of the UE changes; An overall time limit for how long the measurement procedure should last.

[0123] The energy state of the UE can refer to the level of battery power of the UE. The energy state can indicate how long the UE can operate without charging its battery. This parameter can be relevant for the execution of measurements, as measurements that are continuously performed at the UE can continuously consume UE power.

[0124] In some examples, a particular application or service can be initiated at the UE side. The initiation of the application or service can require higher throughput than normal, for which the UE can need to establish DCCA. Unless the particular application or service is initiated, the UE can refrain from performing measurements. When the particular service or application is terminated, the UE can terminate the measurements.

[0125] In some examples, the information associated with the resident cell can indicate the cells to which the UE will connect. For carrier aggregation operation and dual connectivity operation, the primary cell can control which cell will be selected for both operations. Once the UE transitions to RRC connected state, the resident cell of the UE can become the primary cell of the UE. Thus, the resident cell information of the UE can indicate which cells and frequencies are relevant for the UE, as this can be limited to the cells that can be controlled by the primary cell or the resident cell. In some examples, if the resident cell changes, the UE can terminate performing measurements related to the previous resident cell.

[0126] It should be appreciated that in some examples, different termination conditions can be used than these examples. Also, while some examples can relate to termination of EMR measurements, in other examples the same principles can be applied to measurements other than EMR measurements.

[0127] Thus, the UE can be directed to stop performing measurements based on the termination configuration(s), thereby saving energy. The termination configuration(s) can indicate conditions that are considered unlikely to find any viable measurements. For example, if the UE is initially configured to perform measurements for an initial timer duration of 10 seconds, but is configured with a termination configuration to stop performing measurements after 5 seconds without finding any cells in the carrier, then if no cell is found after 5 seconds, the UE can stop performing measurements, thereby saving energy for the remaining 5 seconds of the initial timer. However, if a cell is found after 2 seconds, the UE can continue performing measurements for the remaining 8 seconds of the initial timer.

[0128] In some examples, the termination configuration(s) can include a prioritized list of resource or measurement configurations. The UE can perform measurements according to the prioritized list. For example, the UE can perform measurements according to the highest priority measurement configuration and according to the limitations given in the termination configuration.

[0129] That is, the UE can perform measurements according to the highest priority measurement configuration until a limitation condition specified by the termination configuration is met (e.g., no cell above a specified RSRP value is found in carrier “z” within “x” seconds, then measurements according to the highest priority validity measurement configuration stop). If the termination configuration indicates a total time limit for measurement configurations and any other limitation condition(s) specified by the termination configuration are not met, the UE stops performing measurements according to the highest priority measurement configuration after the total time limit expires.

[0130] When the termination condition associated with the highest priority measurement configuration is met, the UE can then perform measurements according to the next highest priority measurement configuration for the remaining time until the total time limit expires. This process can repeat for any number of measurement configurations in the order of priority indicated by the prioritized list until the total time limit expires.

[0131] Reference Figure 7 illustrating a signaling exchange according to some examples.

[0132] At 700, a network (e.g., an access node of the network) sends one or more termination configurations to a UE. The one or more termination configurations include one or more termination conditions associated with termination of performance of one or more measurements.

[0133] The network can also send a prioritized list indicating an order of priority for one or more measurement configurations. The network can send the validity termination configuration and / or the prioritized list in an RRC message, such as an RRC release, or as part of a SIB.

[0134] At 702, when the network sends the prioritized list, the UE can determine an order of priority for performance of one or more of the one or more measurement configurations. The order of priority can be determined based on the prioritized list received from the network in step 700.

[0135] At 704, the UE begins performing one or more measurements. The UE can begin performing measurements based on the determined order of priority. For example, the UE can perform one or more measurements according to a first measurement configuration having the highest priority. The UE can perform one or more measurements based on the corresponding one or more measurement configurations. The one or more measurement configurations can be sent to the UE from the network (e.g., as part of or prior to step 700).

[0136] In some examples, the UE can initiate the execution of one or more measurements based on the determination that a trigger condition has been met. In some examples, the trigger condition can be one or more of the following: A cell X is measured to be above the RSRP threshold Y. Then, the UE can perform the measurement on another cell (e.g., cell A) (because cell X can add cell A as part of dual connectivity / carrier aggregation), and cell A can act as a secondary cell or PSCell for cell X; The UE has entered a specific location (e.g., a location defined by a specific tracking area code or GPS coordinates); A specific application or service has been initiated; The triggering condition is a specific time or time period. For example, at night, due to streaming services or reduced network load, the UE may need additional data, and therefore measurements performed and reported for cells that support DCCA may be beneficial.

[0137] It should be understood that in some examples, triggering conditions other than those mentioned above may be used.

[0138] At point 706, the UE determines that the termination condition associated with the first measurement configuration has been met based on at least one termination configuration. In response, the UE stops performing measurements according to the first measurement configuration.

[0139] Conditions may include, but are not limited to, those previously described, such as: measurements on a given resource have been performed for the maximum time limit; or no cells have been found in the carrier after a specified amount of time; or no cells with a higher RSRP value have been found in a specific carrier within a specified amount of time.

[0140] When the network has sent the priority ordering list, at 708, the UE can determine, based on the determined priority order, to perform one or more measurements according to the next highest priority measurement configuration (i.e., the second measurement configuration), and begin performing one or more measurements according to the second measurement configuration.

[0141] like Figure 7 As shown by the dashed line 710, in some examples, steps 706 and 708 can be repeated any number of resources according to the priority sorting list (i.e., repeating the third, fourth, fifth, etc. measurement configurations, etc.) until step 712 is executed.

[0142] At 712, the UE determines that the total time spent performing the measurement has reached or exceeded the total measurement time limit. The total measurement time limit may be received from the network, for example, in one or more termination configurations.

[0143] At 714, in response to determining that the total time spent performing the measurement has reached or exceeded the total measurement time limit, the UE stops performing one or more measurements according to all measurement configurations.

[0144] To further illustrate steps 700-714, as an example: The UE receives a termination configuration including a priority list for four different measurement configurations {A, B, C, D}, where each measurement configuration indicates a different carrier (e.g., measurement configuration A indicates carrier A, measurement configuration B indicates carrier B, etc.), and the total measurement time is limited to 10 seconds. The UE begins performing measurements according to measurement configuration A. After performing measurements for 3 seconds, the UE determines that no cell in carrier A has a value higher than the threshold RSRP. In response, the UE stops performing measurements according to measurement configuration A and begins performing measurements according to measurement configuration B. After performing measurements for 3 seconds, the UE determines that no cell in carrier B has a value higher than the threshold RSRP. In response, the UE stops performing measurements according to measurement configuration B and begins performing measurements according to measurement configuration C. The UE begins performing measurements according to measurement configuration C and does so for 4 seconds, and finds that at least one cell in carrier C has a value higher than the threshold RSRP (and therefore does not prematurely terminate the measurement). After performing a measurement for 4 seconds according to measurement configuration C, the UE determines that the total measurement time of 10 seconds has been reached (3 seconds according to measurement configuration A, 3 seconds according to measurement configuration B, and 4 seconds according to measurement configuration C). Then, the UE stops performing all measurements (note that in this example, no measurement was performed according to measurement configuration D because the total carrier measurement time had reached the limit).

[0145] At point 716, the UE can send measurement results to the network.

[0146] In some examples, the UE can indicate the availability of measurements to the network. For instance, the UE can send a message to the network that includes information indicating the availability of measurement results. This message might include, for example, an RRC message, such as previously mentioned... Figure 4 and Figure 5 The message described is "RRC establishment complete" or "RRC recovery complete".

[0147] In some examples, security keys can be exchanged between the UE and the network to establish a security context.

[0148] In some examples, the network can request the UE to provide measurement results, and the UE can send the measurement results to the network based on the request.

[0149] Some examples can enhance UE performance while the UE is performing measurements (such as EMR-related measurements). The UE can be configured to stop performing measurements when certain conditions are met. Therefore, some examples can improve UE power consumption.

[0150] In some examples, an apparatus can perform one or more of the above described steps. For example, an apparatus can comprise means for receiving, from an access node, one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements; starting performance of one or more measurements according to a first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and based on the determination, terminating performance of the one or more measurements according to the first measurement configuration.

[0151] In some examples, an apparatus can comprise at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to receive, from an access node, one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements; start performance of one or more measurements according to a first measurement configuration; determine, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and based on the determination, terminate performance of the one or more measurements according to the first measurement configuration.

[0152] In some examples, an apparatus can comprise means for transmitting, to a user equipment, one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

[0153] In some examples, an apparatus can comprise at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to transmit, to a user equipment, one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

[0154] It is to be understood that an apparatus can include or be coupled to other units or modules etc., such as radio parts or radio heads, for or in connection to transmission and / or reception. Although an apparatus has been described as one entity, different modules and memories can be implemented in one or more physical or logical entities.

[0155] Note that while some embodiments have been described in relation to a 5G network, similar principles can be applied in relation to other networks and communication systems. Thus, while certain embodiments have been described above by way of example with reference to certain example architectures for wireless networks, technologies and standards, embodiments can be applied to any other suitable form of communications system than those illustrated and described herein.

[0156] It is also noted herein that while the above describes example embodiments, there are several variations and modifications which can be made to the disclosed solutions without departing from the scope of the present application.

[0157] As used herein, "at least one of " and "one or more of " and similar phrases, where the list of two or more elements is bound by "and" or "or" means any one of the elements in the list, or any combination of at least two or more of the elements in the list.

[0158] In general, the various embodiments of the disclosure can be implemented in hardware or special-purpose circuits, software, logic or any combination thereof. Some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software which can be executed by a controller, microprocessor or other computing device, although the disclosure is not limited thereto. While various aspects of embodiments of this disclosure can be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein can be implemented in hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controler or other computing devices, or some combination thereof.

[0159] As used in this application, the term "circuitry" can refer to one or more or all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and (b) combinations of hardware circuits and software, such as (as applicable): (i) a combination of analog and / or digital hardware circuit(s) with software / firmware and (ii) any portions of hardware processor(s) with software (including digital signal processors) without which the hardware (c) hardware circuit(s) and or processor(s), such as a microprocessor(s) or a portion of microprocessor(s), that requires software (e.g., firmware) for operation, either in hardware or in a combination of hardware and software, but

[0160] This definition of circuitry applies to all uses of this term in this application including any claims. As a further example, as used in this application, the term circuitry also includes an implementation comprising one or more processors and / or a processor(s) programmed with software and / or firmware instructions and with one or more modules that, among other things, carry out embodiments of the application. The term circuitry also covers, for example and as applicable, an implementation of the baseband integrated circuitry or processor integrated circuitry for a mobile device in a cellular network device, or a similar integrated circuitry in a server, a cellular network device, or other computing or network device.

[0161] Embodiments of the disclosure can be implemented by computer software, firmware, or hardware, or their combination, which can be executed by a data processor of a mobile device, such as in a processor entity, or by hardware, or by a combination of software and hardware. Computer software or program, also called program product, including software routines, applets and / or macros, can be stored in any apparatus-readable data storage medium, including floppy disks, optical disks, CD-ROMs, and magneto-optical disks, ROMs, RAMs, erasable programmable ROMs, EPROMs, EEPROMs, firmware, flash memory, disk drive, and / or other memory. Software products or programs can include one or more computer-executable components such as those that carry out the methods and embodiments described herein.

[0162] Moreover, in this regard, it should be noted that any boxes that represent a flow in the logic flow of the figures can be meant to represent one or more processes that can be performed collectively and / or individually. As such, the representation is meant to be indicative, not restrictive. Software can be stored on a physical media, such as a memory chip or device or on a memory block implemented within a processor of a processing means, such as a hard drive or a floppy disk. The physical media is a non-transitory media. The physical media is a tangible media.

[0163] The term "non-transitory" as used herein is a limitation of the medium itself (i.e., tangible, not a signal) and not a limitation of the data storage durability (e.g., RAM vs. ROM).

[0164] The memory can be of any type appropriate for the local technical environment and can be implemented using any appropriate data storage technology, such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory. The data processor can be of any type appropriate for the local technical environment, and can include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), application specific integrated circuits (ASICs), FPGAs, gate level circuits and processors based on multi-core processor architectures, as non-limiting examples.

[0165] Embodiments of the present disclosure can be practiced in various components such as integrated circuit modules. The design of integrated circuits is by nature a highly automated process. Complex and powerful software tools are available for converting a logic level design into a semiconductor circuit design ready to be etched and formed on semiconductor substrates.

[0166] The scope of protection sought to be afforded by the various embodiments of the present disclosure is set forth by the claims that follow and the granting of patents thereon in the country that grants patents to this application. The embodiments and features that are not within the scope of the claims if any are described in the specification for the sole purpose of illustrating alternative embodiments and features of the various embodiments of the present disclosure.

[0167] The foregoing description has provided by way of non-limiting examples a full and informative description of exemplary embodiments of the present disclosure. However, various modifications and adaptations can become apparent to those skilled in the relevant arts in view of the foregoing description, when read, not in isolation, but in conjunction with the accompanying drawings and the appended claims. However, all such and similar modifications of the teachings of this disclosure will still fall within the scope of the various embodiments of the application, as defined in the appended claims. Indeed, there is a further embodiment comprising an application program interface (API) for the various embodiments of the application.

Claims

1. An apparatus comprising means for: receiving one or more termination configurations from an access node, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements; starting performance of the one or more measurements according to a first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and terminating, based on the determination, performance of the one or more measurements according to the first measurement configuration.

2. The apparatus of claim 1, wherein the means are further for: receiving a priority ordering list from the access node, the priority ordering list comprising a priority order of one or more measurement configurations for performing the one or more measurements, wherein the first measurement configuration is a measurement configuration having a highest priority among the one or more measurement configurations.

3. The apparatus of claim 2, wherein the means are further for: starting performance of one or more measurements according to a second measurement configuration having a next highest priority after the first measurement configuration, in response to terminating performance of the one or more measurements according to the first measurement configuration.

4. The apparatus of claim 3, wherein the means are further for: determining that a termination condition associated with the second measurement configuration is satisfied, and terminating performance of the one or more measurements according to the second measurement configuration.

5. The apparatus of any preceding claim, wherein the means are further for: determining that a total amount of time spent performing the one or more measurements reaches or exceeds a total measurement time limit; and terminating performance of the one or more measurements according to all measurement configurations, in response to determining that the total amount of time spent performing the one or more measurements reaches or exceeds the total measurement time limit.

6. The apparatus of claim 5, wherein the means are further for: receiving the total measurement time limit from the access node.

7. The apparatus of claim 6, wherein the total measurement time limit is included in the one or more termination configurations.

8. The apparatus of any preceding claim, wherein the termination conditions comprise one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell is found in a carrier after a specified amount of time; no cell above a specified measurement value is found in a particular carrier within a specified amount of time; the apparatus enters a particular location; the apparatus enters or is in a particular energy state; the apparatus is associated with a particular application and / or service state, and the particular application and / or service state is terminated; and a camped cell of the apparatus changes.

9. The apparatus of any preceding claim, wherein the means are further for: sending a message to the access node, the message comprising information indicating that measurement results based on the one or more measurements are available; receiving a request for the measurement results from the access node; and sending the measurement results to the access node. ​ 10. An apparatus comprising means for: sending one or more termination configurations to a user equipment, the one or more termination configurations comprising one or more termination conditions associated with termination of execution of one or more measurements at the user equipment.

11. The apparatus of claim 10, wherein the means are further for: sending a prioritized list to the user equipment, the prioritized list comprising a priority order of one or more measurement configurations for execution of the one or more measurements.

12. The apparatus of claim 10 or 11, wherein the means are further for: sending a total measurement time limit to the user equipment, wherein the one or more measurements according to all measurement configurations are to be terminated in response to an amount of time taken by the user equipment to perform the one or more measurements reaching or exceeding the total measurement time limit.

13. The apparatus of claim 12, wherein the total measurement time limit is comprised in the one or more termination configurations.

14. The apparatus of any of claims 10 to 13, wherein the termination conditions comprise one or more of: a measurement according to a given measurement configuration has been performed for a maximum time limit; no cell has been found in a carrier after a specified amount of time; no cell above a specified measurement value has been found in a particular carrier within a specified amount of time; the user equipment enters a particular location; the user equipment enters or is in a particular energy state; the user equipment is associated with a particular application and / or service state, and the particular application and / or service state is terminated; and a camped cell of the user equipment changes.

15. The apparatus of any of claims 10 to 14, wherein the means are further for: receiving a message from the user equipment, the message comprising information indicating that measurement results based on the one or more measurements are available; sending a request to the user equipment for the measurement results; and receiving the measurement results from the user equipment.

16. An apparatus comprising at least one processor and at least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive one or more termination configurations from an access node, the one or more termination configurations comprising one or more termination conditions associated with termination of execution of one or more measurements; start execution of the one or more measurements according to a first measurement configuration; based on the one or more measurements, determine that at least one termination condition associated with the first measurement configuration is satisfied; and based on the determination, terminate execution of the one or more measurements according to the first measurement configuration.

17. An apparatus comprising at least one processor and at least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: sending one or more termination configurations to a user equipment, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

18. A method comprising: receiving one or more termination configurations from an access node, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements; starting performance of the one or more measurements according to a first measurement configuration; determining, based on the one or more measurements, that at least one termination condition associated with the first measurement configuration is satisfied; and terminating, based on the determining, performance of the one or more measurements according to the first measurement configuration.

19. A method comprising: sending one or more termination configurations to a user equipment, the one or more termination configurations comprising one or more termination conditions associated with termination of performance of one or more measurements at the user equipment.

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