A method, performed by a core network node, for enabling energy consumption control, a related core network node, a related radio network node, and a related wireless device

Abstract

A method is disclosed, performed by a core network node, for enabling energy consumption control. The method comprises obtaining energy efficiency information associated with a wireless device. The method comprises transmitting, to a radio network node serving the wireless device, session management information indicative of an energy efficiency policy based on the energy efficiency information.

Description

[0001] A METHOD, PERFORMED BY A CORE NETWORK NODE, FOR ENABLING ENERGY CONSUMPTION CONTROL, A RELATED CORE NETWORK NODE, A RELATED RADIO NETWORK NODE, AND A RELATED WIRELESS DEVICE

[0002] The present disclosure pertains to the field of wireless communications. The present disclosure relates to a method for enabling energy consumption control, a related core network node, a related radio network node, and a related device.

[0003] BACKGROUND

[0004] Recent climate change and global energy shortage issues are the major drivers of the increasing awareness on energy efficiency, including the energy efficiency in the telecommunication sector. Some ongoing 3GPP studies are exploring the use cases and potential 5G requirements for enhancing energy efficiency of 5G network. However, several challenges remain in implementation of these approaches.

[0005] SUMMARY

[0006] Accordingly, there is a need for methods for enabling energy consumption control, which may mitigate, alleviate or address the shortcomings existing and may provide improved energy efficiency for wireless communications.

[0007] A method is disclosed, performed by a core network node, for example for enabling energy consumption control. The method comprises obtaining energy efficiency information associated with a wireless device. The method comprises transmitting, to a radio network node serving the wireless device, session management information indicative of an energy efficiency policy based on the energy efficiency information.

[0008] Further, a core network node comprising memory circuitry, processor circuitry, and a wireless interface is provided. The core network node is configured to perform any of the methods performed in a core network node as disclosed herein.

[0009] It is an advantage of the present disclosure that the disclosed method and core network node enable energy consumption control in a wireless communication network. For example, the present disclosure enables deployment of energy efficiency policies in a cellular network. The present core network node provides an opportunity for operators to provide a service to companies and / or private persons that strives to be and act in a sustainable and energy conscious manner.

[0010] The present core network node enables the implementation of energy efficiency awareness in a wireless network. For example, the present core network node allows implementation of energy efficiency logic and control. For example, customers / end users may be willing to pay more to get a sustainable communication solution for their devices, and the network may increase the network performance when steering the wireless device (such as UE) communication to times when more optimal radio conditions apply. An advantage of the present core network node may be to support communication to the wireless devices in a cellular network by considering the energy consumption usage of a certain user and / or certain application. For example, an energy efficiency (EE) policy for certain usage and / or users / group of users is deployed in a cellular network. An EE policy may be to improve energy efficiency for communications while possibly affecting user experience in performing communication, but providing a service optimized to energy consumption vs. Quality of Service (QoS).

[0011] A method is disclosed, performed by a radio network node, for example for enabling energy consumption control. The method comprises receiving, from a core network node, session management information indicative of an energy efficiency policy associated with energy efficiency information associated with a wireless device. The method comprises applying the energy efficiency policy to a radio communication link associated with the wireless device.

[0012] Further, a radio network node comprising memory circuitry, processor circuitry, and a wireless interface is provided. The radio network node is configured to perform any of the methods performed in a radio network node as disclosed herein.

[0013] It is an advantage of the present disclosure that that the disclosed method and radio network node enable energy consumption control in a wireless communication network. For example, the present radio network node enables deployment of energy efficiency policies in a cellular network.

[0014] The present radio network node provides an opportunity for operators to provide a service to companies and / or private persons that strives to be and act in a sustainable and energy conscious manner.

[0015] The present radio network node enables the implementation of energy efficiency awareness in a wireless network. For example, the present radio network node allows implementation of energy efficiency logic and control. For example, customers / end users may be willing to pay more to get a sustainable communication solution for their devices, and the network may increase the network performance when steering the wireless device (such as UE) communication to times when more optimal radio conditions apply. A further example, the network may adjust the data rate on the radio interface to optimize energy consumption (such as energy per sent bit) to the application e.g., multimedia application consuming the data. The QoS may be reduced due to the sustainability level set by the customer / end-user. An advantage of the present radio network node may be to support communication to the wireless devices in a cellular network by considering the energy consumption usage of a certain user and / or certain application. For example, an energy efficiency (EE) policy for certain usage and / or users / group of users is deployed in a cellular network. An EE policy may be to improve energy efficiency for communications while possibly affecting user experience in performing communication.

[0016] A method is disclosed, performed by a wireless device, for example for enabling energy consumption control. The method comprises transmitting, to a core network node, a registration request indicative of an energy efficiency capability of the wireless device. The method comprises receiving, from a radio network node, radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

[0017] Further, a wireless device comprising memory circuitry, processor circuitry, and a wireless interface is provided. The wireless device is configured to perform any of the methods performed in a wireless device as disclosed herein.

[0018] It is an advantage of the present disclosure that that the disclosed method and wireless device enable energy consumption control in a wireless communication network. For example, the present wireless device enables deployment of energy efficiency policies in a cellular network.

[0019] The present wireless device provides an opportunity for operators to sell a service to companies and / or private persons that strives to be and act in a sustainable and energy conscious manner. The present wireless device enables the implementation of energy efficiency awareness in a wireless network. For example, the present wireless device allows implementation of energy efficiency logic and control. For example, customers / end users may be willing to pay more to get a sustainable communication solution for their devices, and the network may increase the network performance when steering the wireless device (such as UE) communication to times when more optimal radio conditions apply. An advantage of the present wireless device may be to support communication to the wireless devices in a cellular network by considering the energy consumption usage of a certain user and / or certain application. For example, an energy efficiency (EE) policy for certain usage and / or users / group of users is deployed in a cellular network. An EE policy may be to improve energy efficiency for communications while possibly affecting user experience in performing communication.

[0020] BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other features and advantages of the present disclosure will become readily apparent to those skilled in the art by the following detailed description of examples thereof with reference to the attached drawings, in which:

[0022] Fig. 1 is a diagram illustrating an example wireless communication system comprising an example network node and an example wireless device according to this disclosure, Figs. 2A-2B is a flow-chart illustrating an example method, performed in a core network node, e.g., for enabling energy consumption control, according to this disclosure,

[0023] Figs. 3A-3B is a flow-chart illustrating an example method, performed in a radio network node, e.g., for enabling energy consumption control, according to this disclosure,

[0024] Fig. 4 is a flow-chart illustrating an example method, performed in a wireless device, e.g., for enabling energy consumption control, according to this disclosure,

[0025] Fig. 5 is a block diagram illustrating an example core network node according to this disclosure,

[0026] Fig. 6 is a block diagram illustrating an example radio network node according to this disclosure,

[0027] Fig. 7 is a block diagram illustrating an example wireless device according to this disclosure, and

[0028] Fig. 8 shows a signaling diagram where a technique as disclosed herein is applied.

[0029] DETAILED DESCRIPTION

[0030] Various examples and details are described hereinafter, with reference to the figures when relevant. It should be noted that the figures may or may not be drawn to scale and that elements of similar structures or functions are represented by like reference numerals throughout the figures. It should also be noted that the figures are only intended to facilitate the description of the examples. They are not intended as an exhaustive description of the disclosure or as a limitation on the scope of the disclosure. In addition, an illustrated example needs not have all the aspects or advantages shown. An aspect or an advantage described in conjunction with a particular example is not necessarily limited to that example and can be practiced in any other examples even if not so illustrated, or if not so explicitly described. Climate change and global energy shortage make people aware the importance of energy usage and promoting the awareness of energy efficiency. Energy efficiency is currently being promoted and considered as a strategic priority for many telecom operators around the world. Some applications can compromise the user experience over the energy efficiency. Current cellular networks have not implemented energy efficiency aware data transmission. In the present disclosure, a technique for the deployment of energy efficiency (EE) policies in a cellular network is disclosed.

[0031] Various use-cases have been identified and reported. One of the considered use-cases is a use case on energy consumption as a performance criteria for best effort communication. Depending on the wireless device’s policy on energy efficiency, the communication between wireless device (UE) and radio network node (gNB) can be compromised (i.e., best efforts) in order to keep the energy efficiency high.

[0032] In practice, a wireless device can move around within a cell or across cells due to its mobility. For example, a wireless device can be close to a transmission reception point, TRP, at a cell edge, or at an edge of an extended coverage area. In terms of energy consumption, a wireless device being close to the TRP has low energy consumption / energy footprint. In principle, the energy a wireless device consumes both locally in the wireless device and by the network to transmit and receive data, depends on the distance to a TRP at the radio network node (gNB). The distance between a wireless device and a TRP impacts at least the following parameters: output power from TRP / wireless device; number of bits per symbol (modulation rate / scheme): lower modulation scheme I coding rate may be used to improve robustness, while higher modulation scheme I coding rate may be to improve the capacity; use of uplink, UL, I downlink, DL, repetitions to extend the coverage range.

[0033] Additionally, the energy consumption may also depend on some other considerations, such as the deployment of the wireless device itself. The wireless device may be deployed in a difficult spot, such as in a basement, underground, in which it may require high energy consumption to transmit and receive data.

[0034] Different wireless device types, e.g., Smart Phone devices and Internet of Things, loT, devices, are different in term of usage / purpose. Smart phones have more functionalities, such as video call, video streaming browsing, etc, whereas loT devices have limited and / or specific functions, such as tracking, sensors reporting with low data traffic, etc. Both devices can be handled in different ways in the network. An loT device may typically be latency tolerant (e.g., where high latency is acceptable). In other words, it may not be critical when the wireless device transmits UL data or receives DL data. In 3GPP, it is specified various functionalities related to High Latency Communication. For such loT devices energy consumption may be included as a new criterion for when in time to perform data communication. However, this may not apply for a smart phone, as latency is typically important. There could be other acceptable trade-offs for smart phones, such as wait with background synchronization until better radio conditions, lower codec quality even if the radio conditions allow for higher performance, perform access reselection (e.g., between WiFi and 3GPP) based on energy / bit consumption.

[0035] Today, a user’s subscription can be in a form of, for example: a flat rate within certain duration of time (a month), and / or maximum data-transfer within a certain duration of time (such as 50 GB I Month).

[0036] Subscriptions today, do not consider the energy consumption to support data-transmission. For example, two users running identical operations but located in two different locations (user A is close to the base-station and user B at the cell edge). However, the base-station may use more power and / or allocate more radio resources to serve user B, such as transmits the signal with higher transmission power, longer transmission time (such as with repetitions), and uses more radio resources (such as with repetitions and lower coding rate, e.g., to increase the robustness). With present subscriptions, both user A and user B are equally charged. In another example, user A and user B are the same user (e.g., user A) but operate in different time due to mobility (for example user A is a moving device, tracking tool, etc.).

[0037] Recently, the awareness of energy consumptions has been increased. The communication network can be adjusted, such as for some users or some applications, the performance of communication can be compromised in case the energy consumptions usage has been considered high.

[0038] The present disclosure shows how to support communication to the wireless devices in a cellular network, for example by considering the energy consumption usage of a certain user and / or certain application. The present disclosure provides a technique for supporting energy efficiency operation in a cellular network by performing various enhancements to the system.

[0039] As discussed in detail herein, the present disclosure relates to a wireless communication system 1 comprising a cellular system, for example, a 3rdGeneration Partnership Project, 3GPP, wireless communication system. The wireless communication system 1 comprises a first wireless device 300, a second wireless device 300A, a network node 400, and / or a core network (CN) node 600. A network node, such as radio network node, disclosed herein refers to a radio access network node operating in the radio access network, such as a base station, an evolved Node B, eNBs, a next generation Node B, gNBs. The wireless communication system 1 described herein may comprise one or more wireless devices 300, 300A, and / or one or more network nodes 400, such as one or more of: a base station, an eNB, a next generation Node B and / or an access point e.g., a WiFi access point. A wireless device may refer to a mobile device and / or a user equipment, UE, an internet of things (loT) device and / or an ambient loT device. The wireless device 300, 300A may be configured to communicate with the network node 400 via a wireless link (or radio access link) 10, 10A. The first wireless device 300 may be configured to communicate with the second wireless device 300A and vice-versa, via a direct link 10B, such as a wireless link (or radio access link). The radio network node 400 may communicate with the core network node 600 via a wireless or wired link 12.

[0040] The core network node, CNN, may comprise one or more functions of the core network. The core network focus on optimizing the performance and reliability of long-distance and large- scale data communications. For example, for 5G, the core network node may comprise one or more of the following functions: Authentication Server Function (AUSF), Core Access and Mobility Management Function (AMF), Structured Data Storage network function (SDSF), Unstructured Data Storage network function (UDSF), Network Exposure Function (NEF), NF Repository Function (NRF), Policy Control function (PCF), Session Management Function (SMF), Unified Data Management (UDM), User plane Function (UPF), Location Management Function (LMF), and Application Function (AF). The core network may also be connected to Data network (DN), e.g. operator services, Internet access, and / or 3rd party services.

[0041] The figures are schematic and simplified for clarity, and they merely show details which aid understanding the disclosure, while other details have been left out. Throughout, the same reference numerals are used for identical or corresponding parts.

[0042] Fig. 1 is a diagram illustrating an example wireless communication system 1 comprising an example network node 400, a core network (CN) node 600, an example first wireless device 300, and an example second wireless device 300A according to this disclosure.

[0043] As discussed in detail herein, the present disclosure relates to a wireless communication system 1 comprising a cellular system, for example, a 3GPP wireless communication system. The wireless communication system 1 comprises a core network node 600, a wireless device 300, such as a first wireless device, and a network node 400. Optionally, the wireless communication system 1 comprises a second wireless device 300A. A network node, NN, disclosed herein refers to a radio access network node operating in the radio access network, such as a base station, an evolved Node B, eNB, gNB in NR. A gNB may consist of one or more Transmission and Reception Point(s), TRP(s). In one or more examples or embodiments, the RAN node is a functional unit which may be distributed in several physical units.

[0044] A core network, CN, node disclosed herein refers to a network node operating in the core network, such as in the Evolved Packet Core Network, EPC, and / or a 5G Core Network, 5GC. Examples of CN nodes in EPC include a Mobility Management Entity, MME. Example of CN nodes in 5GC include an AMF.

[0045] In one or more examples or embodiments, examples, RAN node is a functional unit which may be distributed in several physical units.

[0046] The core network node 600 obtains energy efficiency information associated with the first wireless device 300 and / or the second wireless device 300A. The core network node 600 transmits, to the radio network node 400 serving the wireless device 300, session management information indicative of an energy efficiency policy based on the energy efficiency information.

[0047] The radio network node 400 receives, from the core network node 600, session management information indicative of an energy efficiency policy associated with energy efficiency information associated with the wireless device 300. The radio network node 400 applies the energy efficiency policy to a radio communication link associated with the wireless device 300.

[0048] The wireless device 300 transmits, to the core network node 600, a registration request indicative of an energy efficiency capability of the wireless device 300. The wireless device 300 receives, from the radio network node 400, a radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

[0049] Fig. 2A-2B shows a flow diagram of an example method 100, performed by a core network node in a network according to the disclosure, for example for enabling energy consumption control. The core network node is the core network node disclosed herein, such as core network node 600 of Fig. 1 , Fig. 5, and Fig. 8.

[0050] The method 100 comprises obtaining S102 energy efficiency information associated with a wireless device. Obtaining energy efficiency information may comprise retrieving, receiving, and / or determining energy efficiency information. Energy efficiency information associated with a wireless device may be seen as any information associated with an energy efficiency rule, energy efficiency effort, energy efficiency awareness, and / or energy efficiency action associated with the wireless device.

[0051] In one or more example methods, obtaining S102 energy efficiency information comprises one or more of: obtaining S102A subscription information indicative of an energy efficiency information element associated with a subscription of the wireless device and obtaining S102B energy efficiency information from an application function. For example, wireless device subscription data stored on the core network node, such as stored on the UDR / UDM, may comprise an energy efficiency information element indicating what the network, such as the radio network node, may apply to optimize an energy use of the wireless device, such as an energy use of the subscriber. For example, a policy control function, PCF, of the core network node may be configured to retrieve energy efficiency information, such as wireless device subscription information indicative of energy efficiency information, e.g., from a unified data management, UDM, and / or user data repository, UDR, function of the core network node where the subscription information may be stored. In one or more examples or embodiments, obtaining energy efficiency information comprises obtaining energy efficiency information from an application function, AF, of the core network node or third-party AF. For example, the AF may either provide, such as transmit, the energy efficiency information directly to the PCF and / or to the UDM / UDR or via a network exposure function, NEF, of the core network node. A third-party AF may use a NEF to provision the network with energy efficiency information associated with a wireless device.

[0052] In one or more example methods, the energy efficiency information, such as the energy efficiency information element, is indicative of an energy efficiency associated with a data traffic type of the wireless device. For example, the energy efficiency information, such as the energy efficiency information element, may represent different types of usage which can be affected by energy efficiency operation of the wireless device. A data traffic type of the wireless device may for example comprise one or more of: small data traffic type, such as high latency communication, e.g., an loT device performing tracking and / or sensor reporting, multimedia and / or extended reality, XR, application traffic type, and all kind of applications data traffic type, where the energy efficiency policy will be applied regardless of the wireless device applications. It may be appreciated that the data traffic type of the wireless device may be associated with a subscription, such as a subscription type, of the wireless device. In other words, the network can apply different energy efficiency policy, such as energy saving policy / strategy, depending on the traffic type of the wireless device. The method 100 comprises transmitting S110, to a radio network node serving the wireless device, session management information indicative of an energy efficiency policy based on the energy efficiency information. In other words, transmitting S110 session management information may comprise the core network node, such as a session management function, SMF, of the core network node providing the radio network node, such as the serving gNB, with a packet data unit, PDU, session identification, ID, quality of service flow identifier, QFI(s), quality of service, QoS, profile(s), and / or the energy efficiency policy, e.g., via the AMF. For example, the session management information may comprise one or more of: a packet data unit, PDU, session identification, ID, quality of service flow identifier, QFI(s), quality of service, QoS, profile(s), and / or the energy efficiency policy. In one or more example methods, the PCF provides the session management information, such as session management policy control information, to the SMF. In one or more examples or embodiments, the PCF provides the energy efficiency policy to the radio network node and / or the wireless device when the PDU session is established or modified. Optionally, the PCF can also provision and / or update the UDR / UDM with the energy efficiency information element associated with the subscription of the wireless device.

[0053] The session management information may be indicative of a new energy efficiency (EE) policy for certain usage and / or users / group of users, e.g., determined in the cellular network. In other words, the energy efficiency policy may be determined in the cellular network. The EE policy may be for improving energy efficiency for communications with the effect in affecting user experience in performing communication. An energy efficiency policy may be seen as a set of parameters, guidelines, strategies, and / or measures implemented by the network to optimize the energy consumption of the network and reduce the environmental impact of operating the network infrastructure while maintaining or improving service quality and network performance. An energy efficiency policy may enable a network to adhere to energy efficiency standards, promote energy saving features, and provide energy usage feedback.

[0054] In one or more example methods, the method 100 comprises determining S108 the energy efficiency policy based on the energy efficiency information, such as based on the subscription information. In one or more examples or embodiments, the energy efficiency policy is determined based on the energy efficiency information, such as based on the energy efficiency information element. In other words, the energy efficiency policy may be determined at the core network node and communicated / transmitted to the radio network node.

[0055] For example, the PCF verifies the energy efficiency information, such as the energy efficiency information element, in the subscription data of the wireless device and create “Non-session management related policy control requirements” or “Session management related policy control requirements”, e.g., a Policy and Charging Control rule, PCC rule, for a session. Both may include energy efficiency policy. The AMF may interact with the SMF to setup / modify the session management, SM, context. The SMF may request the PCF to create / modify policy control, such as session management policy association. The PCF may then retrieve the wireless device subscription information and determine the energy efficiency policy based on the wireless device subscription information. The PCF may then provide session management information, such as session management policy control information, including the energy efficiency policy based on the energy efficiency information to the SMF.

[0056] In one or more example methods, the method 100 comprises transmitting S111 , to the wireless device, session management information indicative of the energy efficiency policy. In other words, the SMF may also provide the session management information, such as the energy efficiency policy, to the wireless device. For example, the SMF may provide the session management information via a non-access stratum session management, NAS SM, container.

[0057] In one or more example methods, the method 100 comprises receiving S104, from the wireless device, a registration request. In one or more examples or embodiments, the registration request is indicative of an energy efficiency capability of the wireless device. In other words, the wireless device may indicate its energy efficiency capability when registering on the network. For example, the wireless device may report its energy efficiency capability during the registration. This may determine whether the wireless device and radio network node can participate in EE policy deployment or not and also the level of participation in EE policy deployment.

[0058] In one or more examples or embodiments, the method 100 comprises obtaining S102 energy efficiency information associated with the wireless device in response to receiving S104 a registration request from the wireless device. In one or more examples or embodiments, the method 100 comprises transmitting, to the wireless device, a registration acceptance in response to the registration request. The registration acceptance may or may not include a network support indication of energy efficiency functionality.

[0059] In one or more example methods, the method 100 comprises receiving S106, from the wireless device, a service request associated with the energy efficiency capability. In other words, the wireless device may perform a service request which may include setting up a PDU session. For example, the service request may comprise an indicator to request that the PDU session / QoS Flow should enable energy efficiency functionality, e.g., based on the energy efficiency capability of the wireless device. In other words, the service request may request a session establishment enabling energy efficiency functionality, e.g., based on the energy efficiency capability.

[0060] In one or more example methods, the method 100 comprises receiving S107, from the wireless device, a service request indicative of an energy efficiency session. In other words, the service request may request a session establishment enabling energy efficiency functionality.

[0061] In one or more examples or embodiments, the method 100 comprises determining S108 the energy efficiency policy and / or transmitting S110 session management information in response to receiving S106 / S107 a service request from the wireless device.

[0062] In one or more example methods, the method 100 comprises indicating S105, to the wireless device, that the network supports an energy efficiency functionality. Indicating S105, to the wireless device, that the network supports an energy efficient functionality may comprise the core network node verifying the wireless device subscription information and indicating to the wireless device that the network supports an energy efficiency functionality indicated by the wireless device subscription. In other words, the AMF may verify the wireless device subscription information and indicate to the wireless device that the network supports an energy efficiency functionality and / or that the wireless device subscription allows energy efficiency operation. Optionally, the core network node, such as the AMF, saves the energy efficiency functionality support in the wireless device context. For example, the method 100 comprises indicating that the network supports an energy efficiency functionality associated with the subscription information of the wireless device. The network may be seen as the wireless device and / or the radio network node. In other words, indicating S105 that the network supports an energy efficiency functionality may comprise indicating whether the wireless device and / or radio network node support an energy efficiency functionality. In one or more examples or embodiments, the method 100 comprises indicating S105, to the wireless device, that the network supports an energy efficient functionality in response to receiving S104 the registration request from the wireless device. An energy efficiency functionality may be seen as a functionality of a wireless communication network enabling an improved energy efficiency, such as enabling energy saving. In other words, an energy efficiency functionality may be seen as a functionality of a wireless communication network enabling energy efficiency enhancements. It can also be seen as a service that the network can provide to the wireless device.

[0063] In one or more example methods, the method 100 comprises receiving S112, from the radio network node, energy consumption information associated with data communication between the radio network node and the wireless device. Energy consumption information associated with data communication between the radio network node and the wireless device may be seen as a calculated energy consumption information for the data transmission between the radio network node and the wireless device as disclosed herein. The energy consumption information may be calculated by or at the radio network node and / or the wireless device. For example, the radio network node may report the energy consumption information to the PCF. It may be appreciated that the PCF can later use the energy consumption information for charging purposes. For example, the energy consumption information may be received at a charging function of the core network node. In one or more examples or embodiments, the energy consumption information, such as energy consumption usage, is reported continuously or alternatively is reported when the energy consumption information does not comply with the energy efficiency policy. The energy consumption information may be reported to the core network node according to energy spending limits and / or exposed to an AF in case the AF subscribes to notifications related to EE. The network may then use an exposure application programming interface, API, to notify the AF about the EE usage based on what the AF has subscribed to. The notification may be indicative of an energy usage (such as exact energy usage and / or information saved by the network regarding the energy efficiency policy).

[0064] In one or more examples or embodiments, the method 100 comprises receiving, from the wireless device, energy consumption information associated with data communication between the radio network node and the wireless device. In other words, the wireless device may report the energy consumption information measured or calculated at the wireless device directly to the core network node.

[0065] In one or more example methods, the method 100 comprises updating S114 the energy efficiency policy based on the energy consumption information.

[0066] In one or more examples or embodiments, the method 100 comprises transmitting, to the radio network node, updated session management information indicative of the updated energy efficiency policy based on the energy consumption information. In one or more examples or embodiments, the method 100 comprises determining updated session management information based on the updated energy efficiency policy.

[0067] In other words, transmitting updated session management information may comprise the core network node, such as a session management function, SMF, of the core network node providing the radio network node, such as the serving gNB, with an updated packet data unit, PDU, an updated session identification, ID, an updated quality of service flow identifier, QFI(s), updated quality of service, QoS, profile(s), and / or the updated energy efficiency policy, e.g., via the AMF. For example, the updated session management information may comprise one or more of: an updated packet data unit, PDU, updated session identification, ID, updated quality of service flow identifier, QFI(s), updated quality of service, QoS, profile(s), and / or the updated energy efficiency policy. In one or more example methods, the PCF provides the updated session management information, such as updated session management policy control information, to the SMF. In one or more examples or embodiments, the PCF provides the updated energy efficiency policy to the radio network node and / or the wireless device when the PDU session is established or modified. Optionally, the PCF can also provision the UDR / UDM with the updated energy efficiency information element associated with the energy consumption information of the wireless device.

[0068] The updated session management information may be indicative of an updated energy efficiency (EE) policy for certain usage and / or users / group of users, e.g., determined in the cellular network. In other words, the updated energy efficiency policy may be determined in the cellular network. The updated EE policy may be for improving energy efficiency for communications with the effect in affecting user experience in performing communication.

[0069] For example, the AF may either provide, such as transmit, the updated energy efficiency information, such as updated energy efficiency policy parameters, directly to the PCF or the UDM / UDR or via a network exposure function, NEF, of the core network node.

[0070] Figs. 3A-3B show a flow diagram of an example method 200, performed by a radio network node according to the disclosure, e.g., for enabling energy consumption control. The radio network node is the network node disclosed herein, such as radio network node 400 of Fig. 1 , Fig. 6, and Fig. 8. The method 200 comprises receiving S202, from a core network node, session management information indicative of an energy efficiency policy associated with energy efficiency information associated with a wireless device. Receiving S202 session management information may correspond to the transmission S110 of Figs. 2A-2B.

[0071] The method 200 comprises applying S204 the energy efficiency policy to a radio communication link associated with the wireless device. In other words, the method 200 comprises applying S204 the energy efficiency policy in response to receiving S202 the session management information indicative of the energy efficiency policy. For example, applying S204 the energy efficiency policy may be seen as applying the energy efficiency policy for a data transmission between the wireless device and the radio network node. In one or more examples or embodiments, the method 200 comprises applying the session management information to the radio communication link associated with the wireless device. Applying S204 the energy efficiency policy may be seen as the radio network node taking the energy efficiency policy into account when scheduling data traffic on a radio communication link associated with the wireless device. Applying S204 the energy efficiency policy may comprise applying a set of parameters, guidelines, strategies, and / or measures implemented by the network to a radio communication link associated with the wireless device, such as to optimize the energy consumption of the network and reduce the environmental impact of operating the network infrastructure while maintaining or improving service quality and network performance.

[0072] In one or more example methods, applying S204 the energy efficiency policy comprises transmitting S204A, to the wireless device, radio resource scheduling information, e.g., associated with the energy efficiency policy. In other words, the serving radio network node may provide the radio resource scheduling information for a data transmission between the wireless device and the serving radio network node based on the energy efficiency policy and / or the session management information. In one or more examples or embodiments, the radio resource scheduling information is based on and / or associated with a radio resource scheduling configuration, such as a radio resource scheduling configuration determined by the radio network node.

[0073] In one or more example methods, applying S204 the energy efficiency policy comprises determining S204B a radio resource scheduling configuration based on the session management information. For example, the radio network node is configured to determine radio resource scheduling information based on the energy efficiency policy and / or the radio resource scheduling configuration.

[0074] In one or more example methods, applying S204 the energy efficiency policy comprises communicating S204C data with the wireless device based on the radio resource scheduling configuration and / or the radio resource scheduling information. In other words, applying S204 the energy efficiency policy may comprise applying data rate control based on the energy efficiency policy, such as based on energy consumption policy and / or limits defined by the energy efficiency policy.

[0075] In one or more example methods, the method 200 comprises obtaining S206 energy consumption information based on the communicated data. In other words, the method 200 comprises obtaining S206 energy consumption information associated with data communication between the radio network node and the wireless device. For example, the radio network node may be equipped with a function unit to perform energy consumption calculation for the communicated data to a wireless device.

[0076] In one or more example methods, the communicated data is associated with one or more of: downlink transmission data and uplink transmission data. The communicated data may comprise downlink transmission data and / or uplink transmission data of data communication between the radio network node and the wireless device.

[0077] In one or more example methods, obtaining S206 energy consumption information comprises determining S206A energy consumption information based on at least the communicated data. In other words, the radio network node may calculate energy consumption information for the data transmission between the wireless device and the radio network node. Obtaining S206 energy consumption information may comprise determining one or more energy consumption parameters. An energy consumption parameter may for example be based on a function of the transmission power and / or an amount of radio resources in time and / or frequency (e.g., a resource grid). For example, during a data transmission between the wireless device and the radio network node, the radio network node may perform an energy consumption calculation. The radio network node may measure and collect the energy consumption (EC) information related to the data transmission between wireless device and radio network node. The energy consumption information may comprise information on specific data communication flows. For example the energy consumption information may be based on historical energy consumption reporting, real-time energy consumption, and / or on-flow (e.g., based on a plurality of data communication links, such as a plurality of video streams). The radio network node may calculate the energy used per bit sent to the wireless device. The instantaneous energy consumption corresponds to an energy consumption to transmit the data using a number of radio resources, the modulation and coding scheme correspond to the number of bits sent, and the transmission power level within a certain time duration (e.g., a transmission of a packet data). The radio network node may translate an actual transmitted power level to an energy usage e.g., Y Watt, W, Power level corresponds to x Joule, J, based on radio network node implementation. The following calculation may be performed:

[0078] Current / lnstantaneous energy consumption may be equal to an energy for a resource to carry a symbol within a given modulation and MCS (X bits) x (times) a number of resources x (times) a level of the transmission power.

[0079] A total energy consumption (such as over a time period) may be equal to a sum of the instantaneous energy consumptions. An average energy consumption rate (such as over a time period) may be equal to a total energy consumption divided by number of transmissions over a time period.

[0080] A maximum Instantaneous energy consumption (such as over a time period) may be equal to a maximum value of the instantaneous energy consumption over a time period.

[0081] In one or more example methods, obtaining S206 energy consumption information comprises obtaining S206B energy consumption information from the wireless device. In other words, the wireless device may calculate energy consumption information for the data transmission between the wireless device and the radio network node and transmit / report energy consumption information based on the calculated energy consumption. In one or more examples or embodiments, the energy consumption information may be based on both energy consumption calculations performed at the radio network node and at the wireless device. In other words, the energy consumption determination / calculation may be distributed between the radio network node and the wireless device. However, it may be more reasonable to perform the determination of the overall / aggregated energy consumption information at the radio network node since the radio network node has all the information for performing the determination.

[0082] In one or more example methods, the energy consumption information comprises one or more of: a rate of energy consumption within a certain period, a total energy consumption, a wireless device identification, time-stamp information, transmission type information, and retransmission flag information. In other words, the energy consumption information may comprise one or more energy consumption parameters comprising one or more of: a rate of energy consumption within a certain period, a total energy consumption, a wireless device identification, time-stamp information, transmission type information, and retransmission flag information. The energy consumption information may be based on downlink transmission data, uplink transmission data or the aggregate I total of downlink and uplink transmission data. It may be appreciated that the energy consumption information may be per data flow, e.g., to allow reporting per application. Transmission type information may be seen as information indicating whether a transmission is periodic or aperiodic.

[0083] In one or more example methods, the method 200 comprises transmitting S208, to the core network node, the energy consumption information. In other words, the energy consumption information may be reported by the radio network node to the core network node. For example, the radio network node may report the energy consumption information to the PCF. The PCF may use the energy consumption information for charging purposes. Transmitting S208 the energy consumption information may correspond to receiving S112 the energy consumption information of Figs. 2A-2B.

[0084] In one or more example methods, the method 200 comprises determining S210 whether the energy consumption information satisfies a first criterion associated with the energy efficiency policy. In other words, the radio network node may evaluate whether the energy consumption information complies with the energy efficiency policy or not. For example, determining S210 whether the energy consumption information satisfies the first criterion may comprise determining whether the energy consumption information satisfies the energy efficiency policy. The first criterion may for example comprise a first threshold, such as a first energy consumption threshold associated with the energy efficiency policy. It may be appreciated that when the energy consumption information does not satisfy the first criterion, the data scheduling between the wireless device and the radio network node may be affected. Determining S210 whether the energy consumption information satisfies a first criterion may comprise determining whether one or more energy consumption parameters satisfy the first criterion. For example, determining S210 whether the energy consumption information satisfies a first criterion may comprise determining whether a rate of energy consumption within a certain period, a total energy consumption, a wireless device identification, time-stamp information, transmission type information, and / or retransmission flag information satisfy the first criterion. The first criterion may comprise one or more of: a rate of energy consumption criterion and / or threshold, a total energy consumption criterion and / or threshold, a wireless device identification criterion and / or threshold, time-stamp criterion and / or threshold, transmission type criterion and / or threshold, and / or retransmission flag criterion and / or threshold.

[0085] In one or more example methods, the method 200 comprises, upon the first criterion not being satisfied, receiving S212, from the core network node, updated session management information indicative of an updated energy efficiency policy. The updated session management information may be based on the updated energy efficiency policy of S114. The updated session management information may be seen as the updated session management information as disclosed herein.

[0086] In one or more examples or embodiments, the method 200 comprises, upon the first criterion being satisfied, keeping S211 the session management information associated with the energy efficiency policy, such as refraining from receiving updated session management information.

[0087] In one or more example methods, the method 200 comprises, upon the first criterion not being satisfied, applying S214 the updated energy efficiency policy to the radio communication link. The description of applying S204 the energy efficiency policy may also apply to applying S214 the updated energy efficiency policy to the radio communication link.

[0088] In one or more example methods, applying S214 the updated energy efficiency policy comprises determining S214A an updated radio resource scheduling configuration based on the updated session management information. For example, upon the energy consumption information not complying with the energy efficiency policy (e.g., due to high energy consumption) the radio network node may adjust the radio parameters, such as the radio resource scheduling interval and / or radio resource size per-interval. For example, once the energy consumption information does not satisfy the first criterion, such as does not comply with the energy efficiency policy, there can be a consequence, such as updating the wireless device resource scheduling. The description of determining S204B a radio resource scheduling configuration may also apply to determining S214A the updated radio resource scheduling configuration. It may be appreciated that the radio network node may adjust radio parameters, such as update and / or adjust a radio resource scheduling configuration until the energy efficiency policy is met or that a lowest threshold of QoS is met. The core network node may update the energy efficiency policy due to new information from the AF and / or that energy consumption exceeds a power consumption limit.

[0089] In one or more example methods, determining S214A an updated radio resource scheduling configuration comprises updating S214A1 one or more of: a radio parameter, a radio resource scheduling interval, a radio resource size per-interval, a payload size, and a maximum transmission power. In other words, when the energy consumption information does not satisfy the first criterion, the radio network node may adjust the data transmission parameters. It may be appreciated that updating one or more of: the radio parameter, the radio resource scheduling interval, the radio resource size per-interval, the payload size, and the maximum transmission power, may affect the data rate of the communication link. For example, when the energy consumption information does not satisfy the first criterion, the radio network node may minimize the transmissions, such as by having longer periodicity and / or reducing payload size.

[0090] In one or more example methods, the method 200 comprises, upon the first criterion not being satisfied, transmitting S213 the energy consumption information to the core network node. The energy consumption information may be reported periodically and / or reported when the energy consumption information does not satisfy the first criterion, e.g., when the energy consumption information does not comply with the energy efficiency policy. In one or more example methods, applying S214 the updated energy efficiency policy comprises transmitting S214B, to the wireless device, updated radio resource scheduling information. The updated radio resource scheduling information may be associated with the updated energy efficiency policy and / or with the updated radio resource scheduling configuration.

[0091] Fig. 4 shows a flow diagram of an example method 500, performed by a wireless device according to the disclosure, e.g., for enabling energy consumption control. The wireless device is the wireless device disclosed herein, such as wireless device 300 of Fig. 1 , Fig. 7, and Fig. 8. The method 500 comprises transmitting S502, to a core network node, a registration request indicative of an energy efficiency capability of the wireless device. In other words, the wireless device may indicate the core network node an energy efficiency capability when registering to the network. Transmitting S502 a registration request may correspond to the reception S104 of a registration request of Figs. 2A-2B.

[0092] The method 500 comprises receiving S510, from a radio network node (such as the radio network node serving the wireless device), radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy. Receiving S510 radio resource scheduling information may correspond to the transmission S204A of Figs. 3A-3B. In other words, the SMF may also provide the session management information, such as the energy efficiency policy, to the wireless device. For example, the SMF may provide the session management information via a non-access stratum session management, NAS SM, container.

[0093] In one or more example methods, the method 500 comprises receiving S508, from the core network node, session management information indicative of the energy efficiency policy. Receiving S508 session management information may correspond to the transmission S111 of session management information of Figs. 2A-2B.

[0094] In one or more example methods, the method 500 comprises transmitting S512 data to the radio network node based on the radio resource scheduling information. In one or more examples or embodiments, the method 500 comprises transmitting data to the radio network node based on the energy efficiency policy. In other words, the wireless device may apply / follow the energy efficiency policy by transmitting S512 data the radio network node based on the radio resource scheduling information. Formulated differently, the wireless device may take the energy efficiency policy into account when determining to send data, e.g. what to send (the amount of data), if to send, or delay the UL data transmission. Transmitting S512 data to the radio network node may correspond to the communication S204C of data of Figs. 3A-3B. In another example, the wireless device may apply / follow the energy efficiency policy by receiving S512 data from the radio network node based on the radio resource scheduling information.

[0095] In one or more example methods, the method 500 comprises communicating S514 data with the radio network node based on the radio resource scheduling information. Communicating S514 data with the radio network node may be seen as transmitting and / or receiving data to / from the radio network node. Communicating S514 data with the radio network node may correspond to the communication S204C of data of Figs. 3A-3B.

[0096] In one or more example methods, the method 500 comprises obtaining S516, based on the communicated data, energy consumption information. In other words, the wireless device may calculate energy consumption information for the data transmission between the wireless device and the radio network node. The wireless device may calculate the energy consumption in the same or a similar way as the radio network node calculating the energy consumption as described herein. For example, the wireless device may calculate energy consumption information at the wireless device for UL and / or DL communication. Obtaining S516 energy consumption information may comprise determining one or more energy consumption parameters of wireless device. An energy consumption parameter may for example be based on a function of the transmission power and / or an amount of radio resources in time and / or frequency (e.g., a resource grid). For example, during a data transmission between the wireless device and the radio network node, the wireless device may perform an energy consumption calculation. The wireless device may measure and collect the energy consumption (EC) information related to the data transmission between wireless device and radio network node. The energy consumption information may comprise information on specific data communication flows. For example the energy consumption information may be based on historical energy consumption reporting, real-time energy consumption, and / or on-flow (e.g., based on a plurality of data communication links, such as a plurality of video streams). In one or more examples or embodiments, the method 500 comprises transmitting, to the radio network node and / or the core network node, the energy consumption information. For example, the wireless device may report the energy consumption information over NAS to the AMF and / or SMF.

[0097] In one or more example methods, the method 500 comprises receiving S504, from the core network node, an indication that the network supports an energy efficiency functionality. Receiving S504 an indication that the network supports an energy efficiency functionality may correspond to the indication S105 of Figs. 2A-2B. In one or more example methods, the method 500 comprises transmitting S506, to the core network node, a service request associated with the energy efficiency capability. Transmitting S506 a service request may correspond to the reception S106 of service request of Figs. 2A- 2B. In other words, the wireless device may perform a service request which may include setting up a PDU session. The service request may comprise or be indicative of an energy efficiency indicator.

[0098] In one or more example methods, the method 500 comprises receiving S518, from the core network node, a message associated with the energy efficiency policy or an updated energy efficiency policy. For example, receiving S518 a message associated with the energy efficiency policy or an updated energy efficiency policy may comprising receiving a session management, SM, message originating from the PCF via the SMF, e.g., as a PDU session modification message. The message may for example comprise a notification to the wireless device regarding consumption, rate limitation etc. For example, the message may indicate to the wireless device that the data communication of the wireless device does not comply with the energy efficiency policy and / or an energy improvement recommendation.

[0099] It may be appreciated that any of the definitions and terms used in the description of Figs. 2A- 2B may also apply to the description of Figs. 3A-3B, Fig. 4, Fig. 5, Fig. 6, Fig. 7, and Fig. 8 and vice versa. For example, any definitions and terms associated with the method performed by the core network node disclosed herein may also apply and / or be used to the definitions and terms relating to the methods performed by the radio network node, the radio network node itself, the methods performed by the wireless device and to the wireless device itself as disclosed herein and vice versa.

[0100] Fig. 5 shows a block diagram of an example core network node 600 according to the disclosure. The core network node 600 comprises memory circuitry 601 , processor circuitry 602, and an interface 603. The core network node 600 may be configured to perform any of the methods disclosed in Fig. 2A-2B. In other words, the core network node 600 may be configured for enabling energy consumption control.

[0101] The core network node, CNN, may comprise one or more functions of the core network. The core network focus on optimizing the performance and reliability of long-distance and large- scale data communications. For example, for 5G, the core network node may comprise one or more of the following functions: Authentication Server Function (AUSF), Core Access and Mobility Management Function (AMF), Structured Data Storage network function (SDSF), Unstructured Data Storage network function (UDSF), Network Exposure Function (NEF), NF Repository Function (NRF), Policy Control function (PCF), Session Management Function (SMF), Unified Data Management (UDM), User plane Function (UPF), Location Management Function (LMF), and Application Function (AF). The core network may also be connected to Data network (DN), e.g. operator services, Internet access, and / or 3rd party services. A core network, CN, node disclosed herein refers to a network node operating in the core network, such as in the Evolved Packet Core Network, EPC, and / or a 5G Core Network, 5GC. Examples of CN nodes in EPC include a Mobility Management Entity, MME. Example of CN nodes in 5GC include an AMF.

[0102] The interface 603 is configured to communicate and / or interact with one or more radio network node, such as radio network node 400, and / or other core network nodes, such as other core network node functions, e.g., AF or DN. The interface 603 may be configured for communications via a wireless communication system, such as a 3GPP system, such as a 3GPP system supporting one or more of: 6G or beyond radio system, New Radio, NR, Long Term Evolution, LTE, Narrow-band loT, NB-loT, and Long Term Evolution - enhanced Machine Type Communication, LTE-M, and 3GPP system operated in licensed bands or unlicensed bands.

[0103] The core network node 600 is configured to obtain S102 (such as via the interface 603 and / or using the processor circuitry 602) energy efficiency information associated with a wireless device.

[0104] The core network node 600 is configured to transmit S110 (such as via the interface 603 and / or using the processor circuitry 602), to a radio network node serving the wireless device, session management information indicative of an energy efficiency policy based on the energy efficiency information.

[0105] Processor circuitry 602 is configured to perform any of the operations disclosed in Figs. 2A-2B. The operations of the network node 600 may be embodied in the form of executable logic routines (for example, lines of code, software programs, etc.) that are stored on a non-transitory computer readable medium (for example, memory circuitry 601 ) and are executed by processor circuitry 602).

[0106] Furthermore, the operations of the network node 600 may be considered a method that the network node 600 is configured to carry out. Also, while the described functions and operations may be implemented in software, such functionality may also be carried out via dedicated hardware or firmware, or some combination of hardware, firmware and / or software. Memory circuitry 601 may be one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, a random-access memory (RAM), or other suitable device. In a typical arrangement, memory circuitry 601 may include a non-volatile memory for long term data storage and a volatile memory that functions as system memory for processor circuitry 602. Memory circuitry 601 may exchange data with processor circuitry 602 over a data bus. Control lines and an address bus between memory circuitry 601 and processor circuitry 602 also may be present (not shown in Fig. 5). Memory circuitry 601 is considered a non- transitory computer readable medium.

[0107] Memory circuitry 601 may be configured to store information, such as information indicating energy efficiency policies, subscription information, energy consumption information, energy efficiency information, energy efficiency capabilities, and / or energy efficiency functionalities in a part of the memory.

[0108] Fig. 6 shows a block diagram of an example radio network node 400 according to the disclosure. The radio network node 400 comprises memory circuitry 401 , processor circuitry 402, and an interface 403. The interface 403 may comprise a wired and / or a wireless interface. The radio network node 400 may be configured to perform any of the methods disclosed in Fig. 3A-3B. In other words, the radio network node 400 may be configured for enabling energy consumption control.

[0109] The radio network node 400 is configured to communicate with a user equipment, such as the wireless device disclosed herein, using a wireless communication system.

[0110] The radio network node 400 may be configured to communicate with a wireless device, such as the first wireless device and / or the second wireless device disclosed herein, using a wireless communication system. The network node 400 may be configured to communicate with a group of wireless devices as disclosed herein, using a wireless communication system.

[0111] The interface 403 is configured for wireless communications via a wireless communication system, such as a 3GPP system, such as a 3GPP system supporting one or more of: 6G or beyond radio system, New Radio, NR, Long Term Evolution, LTE, Narrow-band loT, NB-loT, and Long Term Evolution - enhanced Machine Type Communication, LTE-M, and 3GPP system operated in licensed bands or unlicensed bands. The radio network node 400 may be configured to communicate with a core network node as disclosed herein using a wired or a wireless interface of the interface 403.

[0112] The radio network node 400 is configured to receive S202 (such as via the interface 403 and / or using the processor circuitry 402), from a core network node, session management information indicative of an energy efficiency policy associated with energy efficiency information associated with a wireless device.

[0113] The network node is configured to apply S204 (such as via the interface 403 and / or using the processor circuitry 402) the energy efficiency policy to a radio communication link associated with the wireless device.

[0114] Processor circuitry 402 is configured to perform any of the operations disclosed in Figs. 3A-3B. The operations of the network node 400 may be embodied in the form of executable logic routines (for example, lines of code, software programs, etc.) that are stored on a non-transitory computer readable medium (for example, memory circuitry 401 ) and are executed by processor circuitry 402).

[0115] Furthermore, the operations of the network node 400 may be considered a method that the network node 400 is configured to carry out. Also, while the described functions and operations may be implemented in software, such functionality may also be carried out via dedicated hardware or firmware, or some combination of hardware, firmware and / or software.

[0116] Memory circuitry 401 may be one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, a random-access memory (RAM), or other suitable device. In a typical arrangement, memory circuitry 401 may include a non-volatile memory for long term data storage and a volatile memory that functions as system memory for processor circuitry 402. Memory circuitry 401 may exchange data with processor circuitry 402 over a data bus. Control lines and an address bus between memory circuitry 401 and processor circuitry 402 also may be present (not shown in Fig. 6). Memory circuitry 401 is considered a non- transitory computer readable medium.

[0117] Memory circuitry 401 may be configured to store information, such as information indicating energy efficiency policies, subscription information, energy consumption information, energy efficiency information, energy efficiency capabilities, and / or energy efficiency functionalities in a part of the memory.

[0118] Fig. 7 shows a block diagram of an example wireless device 300 according to the disclosure. The wireless device 300 comprises memory circuitry 301 , processor circuitry 302, and a wireless interface 303. The wireless device 300 may be configured to perform any of the methods disclosed in Fig. 4. In other words, the wireless device 300 may be configured for enabling energy consumption control. The wireless device 300 is configured to communicate with a network node, such as the radio network node disclosed herein, using a wireless communication system. The wireless device 300 may also be configured to communicate with a core network node, such as core network node 600 as disclosed herein, via the radio network node. The communication between the wireless device 300 and the core network node 600 can be transparent to the radio network node 400.

[0119] The wireless device 300 is configured to transmit S502 (such as via the wireless interface 303 and / or using the processor circuitry 302), to a core network node, a registration request indicative of an energy efficiency capability of the wireless device.

[0120] The wireless device 300 is configured to receive S510 (such as via the wireless interface 303 and / or using the processor circuitry 302), from a radio network node, radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

[0121] Processor circuitry 302 may be configured to perform any of the operations disclosed in Fig. 4.

[0122] The wireless interface 303 is configured for wireless communications via a wireless communication system, such as a 3GPP system, such as a 3GPP system supporting one or more of: 6G or beyond radio systems, New Radio, NR, Long Term Evolution, LTE, Narrow-band loT, NB-loT, and Long Term Evolution - enhanced Machine Type Communication, LTE-M, and 3GPP system operated in licensed bands or unlicensed bands.

[0123] The operations of the first wireless device 300 may be embodied in the form of executable logic routines (for example, lines of code, software programs, etc.) that are stored on a non-transitory computer readable medium (for example, memory circuitry 301 ) and are executed by processor circuitry 302).

[0124] Furthermore, the operations of the first wireless device 300 may be considered a method that the wireless device 300 is configured to carry out. Also, while the described functions and operations may be implemented in software, such functionality may also be carried out via dedicated hardware or firmware, or some combination of hardware, firmware and / or software.

[0125] Memory circuitry 301 may be one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, a random-access memory (RAM), or another suitable device. In a typical arrangement, memory circuitry 301 may include a non-volatile memory for long term data storage and a volatile memory that functions as system memory for processor circuitry 302. Memory circuitry 301 may exchange data with processor circuitry 302 over a data bus. Control lines and an address bus between memory circuitry 301 and processor circuitry 302 also may be present (not shown in Fig. 7). Memory circuitry 301 is considered a non- transitory computer readable medium.

[0126] Memory circuitry 301 may be configured to store information (such as information indicative of energy efficiency policies, subscription information, energy consumption information, energy efficiency information, energy efficiency capabilities, and / or energy efficiency functionalities) in a part of the memory.

[0127] Fig. 8 shows a signalling diagram where a technique as disclosed herein is applied. Fig. 8 shows a signalling diagram of example communications between a radio network node, a wireless device, and a core network node according to this disclosure. The radio network node 400 shown in Fig. 8 is for example the radio network node disclosed herein, such as the radio network node 400 of Fig. 1 , and Fig. 6. The wireless device 300 shown in Fig. 8 is for example the wireless device disclosed herein, such as the wireless device 300 of Fig. 1 , and Fig. 7. The core network node 600 shown in Fig. 8 is for example the core network node disclosed herein, such as the core network node shown in Fig. 1 , Fig. 5.

[0128] The core network node 600 for example comprises Core Access and Mobility Management Function (AMF) 600A, Session Management Function (SMF) 600B, Unified Data Management (UDM) and / or User Data Repository (UDR) 600C, Charging function (CHF) 600D, Policy Control function (PCF) 600E, and / or Application Function (AF) 600F.

[0129] In one or more examples or embodiments, the core network node 600 receives a registration request message 801 from the wireless device 300. For example, the AMF 600A receives the registration request message 801 from the wireless device 300. The registration request message 801 for example corresponds with the registration request of S104 (as shown in Fig. 2A)

[0130] In other words, the wireless device 300 transmits a registration request message 801 to the core network node 600. For example, the wireless device 300 transmits the registration request message to AMF 600A. The wireless device 300 may for example transmit, via the radio network node 400, the registration request message 801 to the core network node 600, such as to the AMF 600A. The registration request 801 for example corresponds with the registration request of S502 (as shown in Fig. 4).

[0131] The registration request message may for example inform an energy efficiency capability, such as an energy efficiency capability of the wireless device 300. For example, the wireless device 300 may indicate to the core network node 600 (such as to the AMF 600A) its energy efficiency capability, e.g., when registering to the network.

[0132] Obtaining energy efficiency information S102 of method 100 (as shown in Figs. 2A-2B) for example comprises obtaining a subscription information message 804 (such as comprising energy efficiency subscription information 8002A). For example, the AMF 600A may receive the subscription information message 804 from the UDM / UDR 600C in response to the request message 803 sent to the UDM / UDR 600C. The subscription information message 804 may be indictive of and / or comprise the energy efficiency information 8002A.

[0133] In one or more examples or embodiments, the core network node 600 may obtain (e.g., via a NEF) a message 802 comprising energy efficiency information8002B. For example, the UDM / UDR 600C and / or PCF 600E may obtain from the AF 600F energy efficiency information 8002B, e.g., indicative of an energy efficiency functionality of the network and / or energy efficiency of the wireless device 300. The message 802 comprising energy efficiency information 8002B for example corresponds with the energy efficiency information of S102B (as shown in Fig. 2A). The UDM / UDR 600C may already have energy efficiency information 8002A stored, then the received energy efficiency information 8002B may update the energy efficiency information 8002A. The PCF 600E can forward the energy efficiency information 8002B to the UDM / UDR 600C at a later stage to update energy efficiency information 8002A.

[0134] In one or more examples or embodiments, the core network node 600 may obtain subscription information. For example, the AMF 600A may for example transmit a request message 803 to the UDM 600C to provide subscription data. Upon receiving the request message 803 from the AMF 600A, the UDM / UDR 600C may then provide a message 804 comprising or being indicative of subscription information 8002A to the AMF 600A. The AMF 600A may for example be seen as retrieving or receiving the message 804 comprising subscription data from the UDM / UDR 600C. The subscription information message 804 for example corresponds with the subscription information of S102A (as shown in Fig. 2A).

[0135] In one or more examples or embodiments, the core network node 600 transmits (e.g., via the radio network node 400) to the wireless device 300, a registration accept message 805. The registration accept message 805 may comprise information indicating that the network supports an energy efficiency functionality. The information of the message 805 for example corresponds with the indication of S105 (as shown in Fig. 2A). The information of the message 805 for example corresponds with the indication of S504 (as shown in Fig. 4). In some examples, the AMF 600A may analyze the subscription information message 804 of the wireless device. The AMF 600A may for example indicate to the wireless device 300 that the network supports energy efficiency. The AMF 600A for example saves the energy efficiency support in the wireless device 300 context. The AMF 600A may for example use the energy efficiency information, e.g., for a paging strategy.

[0136] In one or more examples or embodiments, the core network node 600 receives (e.g., via the radio network node 400) from the wireless device 300 a service request message 806, such as a message 806 comprising or being indicative of a service request. The service request message 806 is for example associated with the energy efficiency capability and / or indicative of an energy efficiency session. The service request message 806 for example corresponds with the service request of S106 and / or S107 (as shown in Fig. 2A). The service request message 806 for example corresponds to the service that support energy efficiency operation. The service request message 806 for example corresponds with the service request of S506 (as shown in Fig. 4). The wireless device 300 may for example perform (such as transmit) a service request. Performing the service request for example comprises setting up a Packet Data Unit (PDU) session if needed.

[0137] Determining 811 the energy efficiency policy based on the energy efficiency information can for example be seen as the core network node configuring the energy efficiency policy. The core network node 600 determining 811 the energy efficiency policy for example comprises the PCF 600E determining 811 the energy efficiency policy. The PCF 600E for example retrieves subscription information associated with the wireless device 300. The PCF 600E may for example determine 811 , based on energy efficiency information and / or subscription information, an energy efficiency policy 8004. In other words, the core network node 600, such as the PCF 600E, may be seen as deciding on one or more energy efficiency policies 8004A, 8004B.

[0138] In some examples, the core network node 600 determining 811 the energy efficiency policy (as shown in S108 of Fig. 2A) comprises the core network node 600 setting up and / or modifying the session management context. In one or more examples or embodiments, the SMF 600B interacts 807, 808, 812 with the AMF 600A and PCF 600E, e.g., to create and / or update the session management context.

[0139] In some examples, the core network node 600 determining 811 the energy efficiency policy (as shown in S108 of Fig. 2A) comprises the core network node 600 performing a session management context policy association. For example, the SMF 600B may perform a session management context policy association. The SMF 600B for example provides to the PCF 600E a request 808 comprising and / or indicative of the session management context policy association. In some examples, the SMF 600B may request to create and / or modify policy control.

[0140] In some examples, the core network node 600 determining 811 the energy efficiency policy (as shown in S108 of Fig. 2A) comprises the PCF 600E providing a request message 809 to receive energy efficiency subscription information 8002A from the UDM / UDR 600C. In some examples, the core network node 600 determining the energy efficiency policy 8004 (as shown in S108 of Fig. 2A) comprises, upon the UDM / UDR 600C receiving the request message 809, providing a message 810 comprising energy efficiency subscription information to the PCF 600E. The message 810 may be in response to the request message 809. The message 810 may include the energy efficiency information 8002A stored in the UDM / UDR 600C. The energy efficiency information of the message 809 may be seen as the subscription information of S102A as shown in Fig. 2A. For example, the PCF 600E can be seen as retrieving the energy efficiency subscription information 810 from the UDM / UDR 600C.

[0141] In one or more examples or embodiments, the PCF 600F provides a message 812 comprising and / or indicative of the determined energy efficiency policy 8004 to the SMF 600B. The energy efficiency policy message 812 can for example be seen as comprising a determined energy efficiency policy 8004A for the wireless device 300 and / or for the energy efficiency policy 8004B the radio network node. For example, the energy efficiency policy message 812 provided from PCF 600E to the SMF 600B may be used to obtain and / or determine session management policy control information. The message 812 may be in response to the request 808 from the SMF 600B.

[0142] In one or more examples or embodiments, the core network node 600 (such as the SMF 600B) transmits to the radio network node 400 a message 813 comprising and / or being indicative of the session management information, e.g., indicative of an energy efficiency policy 8004B based on the energy efficiency information. The message 813 may be seen as a request message, such as a PDU session establishment request message, e.g., including parameters based on the session management information. The session management information message 813 may for example correspond with or be indicative of the session management information of S110 and / or S111 (as shown in Fig. 2A). The session management information message 813 for example corresponds with or is indicative of the session management information of S202 (as shown in Fig. 3A). The session management information message 813 for example comprises one or more of: the energy efficiency policy of the message 812, energy used in the past (e.g., by the wireless device 300), and one or more energy restrictions.

[0143] In one or more examples or embodiments, the core network node 600 (such as the SMF 600B) transmits (e.g., via the network node 400) to the wireless device 300 a message 814 comprising and / or being indicative of the session management information, e.g., indicative of an energy efficiency policy 8004A based on the energy efficiency information. The message 814 may for example correspond with or be indicative of the session management information of S508 (as shown in Fig. 4). The session management information message 814 for example comprises one or more of: the energy efficiency policy 8004A of the message 812, energy used in the past (e.g., by the wireless device 300), and one or more energy restrictions. The core network node 600, such as the SMF 600B, may for example provide the session management information message 814 to the wireless device 300 using a NAS session management container.

[0144] In one or more examples or embodiments, the radio network node 400 transmits, to the wireless device 300, a message 815 comprise and / or being indicative of the radio resource scheduling information. The radio resource scheduling information message 815 for example corresponds with and / or is indicative of the radio resource scheduling information of S204A (as shown in Fig. 3A). The radio resource scheduling information message 815 for example corresponds with and / or is indicative of the radio resource scheduling information of S510 (as shown in Fig. 4). The radio resource scheduling information message 815 is for example indicative of a radio resource scheduling configuration.

[0145] The data transmissions 816, 817 and / or 818 may for example be configured according to the radio resource scheduling configuration, e.g., as indicated by the radio resource scheduling information message 815. The data transmissions 816, 817 and / or 818 are for example transmissions of data from the radio network node 400 to the wireless device 300, such as DL data transmissions, and / or transmissions of data from the wireless device 300 to the radio network node 400, such as UL data transmissions. Data transmissions 816, 817 and / or 818 for example correspond with the radio network node applying S204 the energy efficiency policy 8004B to a radio communication link associated with the wireless device.

[0146] Data transmissions 816, 817, 818 for example correspond with the data of S204C (as shown in Fig. 3A). Data transmissions 816, 817 and / or 818 for example correspond with the data communicated by the wireless device in S512 (as shown in Fig. 3A). In one or more examples or embodiments, the radio network node 400 determines / obtains 819, e.g., based on data transmissions 816, 817, and / or 818, energy consumption information. The determination 819 can for example be seen as an energy consumption calculation. In other words, the radio network node 400 for example determines 819 an energy consumption, such as an energy consumption associated with data transmissions 816, 817, and / or 818. The energy consumption determination / obtaining 819 for example corresponds with the obtaining S206 and / or the determination of S206A (as shown in Fig. 3A). In some examples, the determination 819 of the energy consumption information may be performed by the wireless device 300.

[0147] In some examples, the determination 819 of the energy consumption information may be performed during data transmissions 816, 817 and / or 818. The determination 819 of the energy consumption information for example comprises checking the energy consumption of the wireless device 300 in relation to the energy efficiency policy of the message 812. It may be appreciated that after the radio network node has determined the energy consumption information, the radio network node may adjust radio parameters, such as update and / or adjust a radio resource scheduling configuration until the energy efficiency policy is met or that a lowest threshold of QoS is met. The core network node may update the energy efficiency policy due to new information from the AF and / or that energy consumption exceeds a power consumption limit.

[0148] In one or more examples or embodiments, the radio network node 400 transmits, to the core network node 600, a message 820 comprising and / or indicative of the energy consumption information. The radio network node 400 may transmit the energy consumption information message 820 to the SMF 600B, potentially the radio network node 400 can also transmit the energy consumption information to the Charging function CHF 600D. The energy consumption information message 820 is for example obtained in the determination 819. The energy consumption information message 820 for example corresponds with and / or is indicative of the energy consumption information of S208 (as shown in Fig. 3A). The energy consumption information message 820 can for example comprises an energy usage report, e.g., indicative of the energy usage of the wireless device 300 (such as during data transmissions 816, 817, and / or 818). For example, the energy consumption information message 820 comprises are charging report and / or a usage report indicative of the charging and / or usage of the wireless device 300. In some examples, the radio network node 400 may determine whether the energy consumption information satisfies a first criterion (as shown in S210 of Fig. 3A), e.g., associated with the energy efficiency policy of the message 812. For example, upon the first criterion not being satisfied, the radio network node 400 may provide energy consumption information via the message 820 to the core network node 600. In one or more examples or embodiments, the SMF 600B may transmit the energy consumption information via a message 821 to the CHF 600D. The SMF 600B may expose energy consumption information, via the message 821 and based on the message 820, to the AF 600F via the NEF, if the AF 600F has subscribed to energy consumption notifications. It may be appreciated that any of the network functions, NF, may provide the CHF with charging related information.

[0149] In one or more examples or embodiments, the core network node 600, such as the PCF 600E, may update 823 the energy efficiency policy 8004, e.g., based on the energy consumption information 820. For example, updating 823 the energy efficiency policy be seen as reconfiguring the energy efficiency policy. In one or more examples or embodiments, the core network node 600 updates 823 (as in S114 shown in Fig. 2B) the energy efficiency policy, e.g., based on the energy consumption information message 820. For example, updating 823 the energy efficiency policy comprises the radio network node 400 transmits, to the core network node 600, the energy consumption information message 820. A further example, the core network node 600 updates 823 (as in S114 shown in Fig. 2B) the energy efficiency policy, e.g., based on updated energy efficiency information 8002B received from AF 600F.

[0150] In one or more examples or embodiments, updating 823 the energy efficiency policy comprises the CHF 600D providing to the PCF 600E, a message 822 comprising and / or being indicative of information indicative of an energy spending limit of the wireless device 300 being reached. In other words, the CHF 600D for example provides an indication to the PCF 600E that the energy spending limit of the wireless device 300 being reached. The energy spending limit is for example associated with, such as based on, the energy efficiency policy.

[0151] In one or more examples or embodiments, the radio network node 400 may for example check 824 a wireless device policy based on the energy efficiency policy 812.

[0152] In one or more examples or embodiments, the wireless device 300 may for example check 824 whether the wireless device policy complies with the energy efficiency policy 812.

[0153] In one or more examples or embodiments, the PCF 600E may transmit a message 825 comprising and / or being indicative of the updated energy efficiency policy to the SMF 600B. In some examples, the updated energy efficiency policy is an updated energy efficiency policy for the wireless device 300 and / or for the radio network node 400. The PCF 600E may for example provide a message 825 comprising and / or being indicative of an updated energy efficiency policy (such as reconfigured energy efficiency policy) to the SMF 600B. In some examples, the radio network node 400 may receive, from the core network node 600, an updated energy efficiency policy 8004B, as shown in S212 of Fig. 3B), such as a message 826.

[0154] In one or more examples or embodiments, the SMF 600B may provide a message 826, to the radio network node 400, comprising and / or being indicative of the updated energy efficiency policy.

[0155] In one or more examples or embodiments, the radio network node 400 may determine 827 an updated radio resource scheduling configuration, e.g., based on the updated energy efficiency policy from the message 825. Determining 827 an updated radio resource scheduling configuration for example corresponds with determining an updated radio resource scheduling configuration of S214A (as shown in Fig. Fig. 3B). For example, determining 827 an updated radio resource scheduling configuration comprises updating (as in S214A1 shown in Fig. 3B) one or more of: a radio parameter, a radio resource scheduling interval, a radio resource size per-interval, a payload size, and a maximum transmission power. In some examples, the updated radio resource scheduling configuration enables minimized data transmission, such as longer periodicity and / or smaller payload size.

[0156] In one or more examples or embodiments, the core network node 600 provides, to the wireless device 300, a message 828 associated with the energy efficiency policy 8004A from the message 812 and / or the updated energy efficiency policy 8004A from the message 825. In one or more examples or embodiments, the core network node 600 provides the message 828 to the wireless device 300 via the radio network node 400. The message 828 for example corresponds with message of S518 (as shown in Fig. 4).

[0157] In one or more examples or embodiments, the radio network node 400 may transmit a message 829 to the wireless device 300, comprising and / or being indicative of the updated radio resource scheduling information. The updated radio resource scheduling information message 829 for example corresponds with the updated radio resource scheduling information of S214B (as shown in Fig. 3B).

[0158] Examples of methods and products (core network node, radio network node, and wireless device) according to the disclosure are set out in the following items:

[0159] ITEMS Item 1 . A method (100), performed by a core network node in a network, for enabling energy consumption control, the method (100) comprising: obtaining (S102) energy efficiency information associated with a wireless device; and transmitting (S110), to a radio network node serving the wireless device, session management information indicative of an energy efficiency policy based on the energy efficiency information.

[0160] Item 2. The method according to item 1 , wherein obtaining (S102) energy efficiency information comprises one or more of: obtaining (S102A) subscription information indicative of an energy efficiency information element associated with a subscription of the wireless device and obtaining (S102B) energy efficiency information from an application function.

[0161] Item 3. The method according to any of the previous items, the method (100) comprising: receiving (S104), from the wireless device, a registration request indicative of an energy efficiency capability of the wireless device.

[0162] Item 4. The method according to item 3, the method (100) comprising: receiving (S106), from the wireless device, a service request associated with the energy efficiency capability.

[0163] Item 5. The method according to any of the previous items, the method (100) comprising: receiving (S107), from the wireless device, a service request indicative of an energy efficiency session.

[0164] Item 6. The method according to any of the previous items, the method (100) comprising: indicating (S105), to the wireless device, that the network supports an energy efficiency functionality.

[0165] Item 7. The method according to any of the previous items, the method (100) comprising: transmitting (S111 ), to the wireless device, session management information indicative of the energy efficiency policy.

[0166] Item 8. The method according to any of the previous items, wherein the energy efficiency information is indicative of an energy efficiency associated with a data traffic type of the wireless device.

[0167] Item 9. The method according to any of the previous items, the method (100) comprising: determining (S108) the energy efficiency policy based on the energy efficiency information.

[0168] Item 10. The method according to any of the previous items, the method (100) comprising: receiving (S112), from the radio network node, energy consumption information associated with data communication between the radio network node and the wireless device.

[0169] Item 11 . The method according to item 10, the method (100) comprising: updating (S114) the energy efficiency policy based on the energy consumption information.

[0170] Item 12. A method (200), performed by a radio network node, for enabling energy consumption control, the method (200) comprising: receiving (S202), from a core network node, session management information indicative of an energy efficiency policy associated with energy efficiency information associated with a wireless device; and applying (S204) the energy efficiency policy to a radio communication link associated with the wireless device. Item 13. The method according to item 12, wherein applying (S204) the energy efficiency policy comprises transmitting (S204A), to the wireless device, radio resource scheduling information associated with the energy efficiency policy.

[0171] Item 14. The method according to any of items 12-13, wherein applying (S204) the energy efficiency policy comprises determining (S204B) a radio resource scheduling configuration based on the session management information.

[0172] Item 15. The method according to item 14, wherein applying (S204) the energy efficiency policy comprises communicating (S204C) data with the wireless device based on the radio resource scheduling configuration.

[0173] Item 16. The method according to item 15, the method (200) comprising: obtaining (S206) energy consumption information based on the communicated data.

[0174] Item 17. The method according to any of items 15-16, wherein the communicated data is associated with one or more of: downlink transmission data and uplink transmission data.

[0175] Item 18. The method according to any of items 16-17, wherein obtaining (S206) energy consumption information comprises determining (S206A) energy consumption information based on at least the communicated data.

[0176] Item 19. The method according to any of items 16-18, wherein obtaining (S206) energy consumption information comprises obtaining (S206B) energy consumption information from the wireless device.

[0177] Item 20. The method according to any of items 16-19, wherein the energy consumption information comprises one or more of: a rate of energy consumption within a certain period, a total energy consumption, a wireless device identification, time-stamp information, transmission type information, and retransmission flag information. Item 21. The method according to any of items 16-20, the method (200) comprising: transmitting (S208), to the core network node, the energy consumption information.

[0178] Item 22. The method according to any of items 16-21 , the method (200) comprising: determining (S210) whether the energy consumption information satisfies a first criterion associated with the energy efficiency policy.

[0179] Item 23. The method according to item 22, the method (200) comprising: upon the first criterion not being satisfied: o receiving (S212), from the core network node, updated session management information indicative of an updated energy efficiency policy; and o applying (S214) the updated energy efficiency policy to the radio communication link.

[0180] Item 24. The method according to item 23, wherein applying (S214) the updated energy efficiency policy comprises determining (S214A) an updated radio resource scheduling configuration based on the updated session management information.

[0181] Item 25. The method according to item 24, wherein determining (S214A) an updated radio resource scheduling configuration comprises updating (S214A1) one or more of: a radio parameter, a radio resource scheduling interval, a radio resource size per-interval, a payload size, and a maximum transmission power.

[0182] Item 26. The method according to any of items 22-25, the method (200) comprising: upon the first criterion not being satisfied, transmitting (S213) the energy consumption information to the core network node. Item 27. The method according to any of items 23-26, wherein applying (S214) the updated energy efficiency policy comprises transmitting (S214B), to the wireless device, updated radio resource scheduling information.

[0183] Item 28. A method (500), performed by a wireless device, for enabling energy consumption control, the method (500) comprising: transmitting (S502), to a core network node, a registration request indicative of an energy efficiency capability of the wireless device; and receiving (S510), from a radio network node, radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

[0184] Item 29. The method according to item 28, the method (500) comprising: receiving (S508), from the core network node, session management information indicative of the energy efficiency policy.

[0185] Item 30. The method according to any of items 28-29, the method (500) comprising: transmitting (S512) data to the radio network node based on the radio resource scheduling information.

[0186] Item 31. The method according to any of items 28-30, the method (500) comprising: communicating (S514) data with the radio network node based on the radio resource scheduling information.

[0187] Item 32. The method according to item 31 , the method (500) comprising: obtaining (S516), based on the communicated data, energy consumption information.

[0188] Item 33. The method according to any of items 28-32, the method (500) comprising: transmitting (S506), to the core network node, a service request associated with the energy efficiency capability.

[0189] Item 34. The method according to any of items 28-33, the method (500) comprising: receiving (S504), from the core network node, an indication that the network supports an energy efficiency functionality.

[0190] Item 35. The method according to any of items 28-34, the method (500) comprising: receiving (S518), from the core network node, a message associated with the energy efficiency policy or an updated energy efficiency policy.

[0191] Item 36. A core network node comprising memory circuitry, processor circuitry, and a wireless interface, wherein the radio network node is configured to perform any of the methods according to any of items 1-11.

[0192] Item 37. A radio network node comprising memory circuitry, processor circuitry, and a wireless interface, wherein the radio network node is configured to perform any of the methods according to any of items 12-27.

[0193] Item 38. A wireless device comprising memory circuitry, processor circuitry, and a wireless interface, wherein the wireless device is configured to: transmit, to a core network node, a registration request indicative of an energy efficiency capability; and receive, from a radio network node, radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

[0194] The use of the terms “first”, “second”, “third” and “fourth”, “primary”, “secondary”, “tertiary” etc. does not imply any particular order, but are included to identify individual elements. Moreover, the use of the terms “first”, “second”, “third” and “fourth”, “primary”, “secondary”, “tertiary” etc. does not denote any order or importance, but rather the terms “first”, “second”, “third” and “fourth”, “primary”, “secondary”, “tertiary” etc. are used to distinguish one element from another. Note that the words “first”, “second”, “third” and “fourth”, “primary”, “secondary”, “tertiary” etc. are used here and elsewhere for labelling purposes only and are not intended to denote any specific spatial or temporal ordering. Furthermore, the labelling of a first element does not imply the presence of a second element and vice versa.

[0195] It may be appreciated that the figures comprise some circuitries or operations which are illustrated with a solid line and some circuitries, components, features, or operations which are illustrated with a dashed line. Circuitries or operations which are comprised in a solid line are circuitries, components, features or operations which are comprised in the broadest example. Circuitries, components, features, or operations which are comprised in a dashed line are examples which may be comprised in, or a part of, or are further circuitries, components, features, or operations which may be taken in addition to circuitries, components, features, or operations of the solid line examples. It should be appreciated that these operations need not be performed in order presented. Furthermore, it should be appreciated that not all of the operations need to be performed. The example operations may be performed in any order and in any combination. It should be appreciated that these operations need not be performed in order presented. Circuitries, components, features, or operations which are comprised in a dashed line may be considered optional.

[0196] Other operations that are not described herein can be incorporated in the example operations. For example, one or more additional operations can be performed before, after, simultaneously, or between any of the described operations.

[0197] Certain features discussed above as separate implementations can also be implemented in combination as a single implementation. Conversely, features described as a single implementation can also be implemented in multiple implementations separately or in any suitable sub-combination. Moreover, although features may be described above as acting in certain combinations, one or more features from a claimed combination can, in some cases, be excised from the combination, and the combination may be claimed as any sub-combination or variation of any sub-combination.

[0198] It is to be noted that the word "comprising" does not necessarily exclude the presence of other elements or steps than those listed.

[0199] It is to be noted that the words "a" or "an" preceding an element do not exclude the presence of a plurality of such elements.

[0200] It is to be noted that the term "indicative of may be seen as “associated with”, “related to”, “descriptive of’, “characterizing”, and / or “defining”. The terms “indicative of”, “associated with”, “related to”, “descriptive of’, “characterizing”, and “defining” can be used interchangeably. The term “indicative of” can be seen as indicating a relation. For example, weight data indicative of weight may comprise one or more weight parameters.

[0201] It is to be noted that the word "based on" may be seen as “as a function of” and / or “derived from”. The terms “based on” and “as a function of’ can be used interchangeably. For example, a parameter determined “based on” a data set can be seen as a parameter determined “as a function of” the data set. In other words, the parameter may be an output of one or more functions with the data set as an input.

[0202] A function may be characterizing a relation between an input and an output, such as mathematical relation, a database relation, a hardware relation, logical relation, and / or other suitable relations.

[0203] It should further be noted that any reference signs do not limit the scope of the claims, that the examples may be implemented at least in part by means of both hardware and software, and that several "means", "units" or "devices" may be represented by the same item of hardware. The various example methods, devices, nodes and systems described herein are described in the general context of method steps or processes, which may be implemented in one aspect by a computer program product, embodied in a computer-readable medium, including computerexecutable instructions, such as program code, executed by computers in networked environments. A computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM), Random Access Memory (RAM), compact discs (CDs), digital versatile discs (DVD), etc. Generally, program circuitries may include routines, programs, objects, components, data structures, etc. that perform specified tasks or implement specific abstract data types. Computer-executable instructions, associated data structures, and program circuitries represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.

[0204] Although features have been shown and described, it will be understood that they are not intended to limit the claimed disclosure, and it will be made obvious to those skilled in the art that various changes and modifications may be made without departing from the scope of the claimed disclosure. The specification and drawings are, accordingly, to be regarded in an illustrative rather than restrictive sense. The claimed disclosure is intended to cover all alternatives, modifications, and equivalents.

Claims

CLAIMS1 . A method (100), performed by a core network node in a network, for enabling energy consumption control, the method (100) comprising: obtaining (S102) energy efficiency information associated with a wireless device; and transmitting (S110), to a radio network node serving the wireless device, session management information indicative of an energy efficiency policy based on the energy efficiency information.

2. The method according to claim 1 , wherein obtaining (S102) energy efficiency information comprises one or more of: obtaining (S102A) subscription information indicative of an energy efficiency information element associated with a subscription of the wireless device and obtaining (S102B) energy efficiency information from an application function.

3. The method according to any of the previous claims, the method (100) comprising: receiving (S104), from the wireless device, a registration request indicative of an energy efficiency capability of the wireless device.

4. The method according to claim 3, the method (100) comprising: receiving (S106), from the wireless device, a service request associated with the energy efficiency capability.

5. The method according to any of the previous claims, the method (100) comprising: receiving (S107), from the wireless device, a service request indicative of an energy efficiency session.

6. The method according to any of the previous claims, the method (100) comprising: indicating (S105), to the wireless device, that the network supports an energy efficiency functionality.

7. The method according to any of the previous claims, the method (100) comprising:transmitting (S111 ), to the wireless device, session management information indicative of the energy efficiency policy, and wherein the energy efficiency information is indicative of an energy efficiency associated with a data traffic type of the wireless device8. A method (200), performed by a radio network node, for enabling energy consumption control, the method (200) comprising: receiving (S202), from a core network node, session management information indicative of an energy efficiency policy associated with energy efficiency information associated with a wireless device; and applying (S204) the energy efficiency policy to a radio communication link associated with the wireless device.

9. The method according to claim 8, wherein applying (S204) the energy efficiency policy comprises transmitting (S204A), to the wireless device, radio resource scheduling information associated with the energy efficiency policy.

10. The method according to any of claims 8 to 9, wherein applying (S204) the energy efficiency policy comprises determining (S204B) a radio resource scheduling configuration based on the session management information.

11. The method according to claim 10, wherein applying (S204) the energy efficiency policy comprises communicating (S204C) data with the wireless device based on the radio resource scheduling configuration.

12. The method according to claim 11 , wherein the communicated data is associated with one or more of: downlink transmission data and uplink transmission data.

13. The method according to claim 12, wherein obtaining (S206) energy consumption information comprises determining (S206A) energy consumption information based on at least the communicated data.

14. The method according to any of claims 12 to 13, the method (200) comprising: transmitting (S208), to the core network node, the energy consumption information.

15. A method (500), performed by a wireless device, for enabling energy consumption control, the method (500) comprising: transmitting (S502), to a core network node, a registration request indicative of an energy efficiency capability of the wireless device; and receiving (S510), from a radio network node, radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

16. The method according to claim 15, the method (500) comprising: receiving (S508), from the core network node, session management information indicative of the energy efficiency policy.

17. The method according to any of claims 15 to 16, the method (500) comprising: transmitting (S512) data to the radio network node based on the radio resource scheduling information.

18. The method according to any of claims 15 to 17, the method (500) comprising: communicating (S514) data with the radio network node based on the radio resource scheduling information.

19. The method according to claim 18, the method (500) comprising: obtaining (S516), based on the communicated data, energy consumption information.

20. A wireless device comprising memory circuitry, processor circuitry, and a wireless interface, wherein the wireless device is configured to: transmit, to a core network node, a registration request indicative of an energy efficiency capability; and - receive, from a radio network node, radio resource scheduling information indicative of a radio resource scheduling configuration associated with an energy efficiency policy.

Images