hash stringlengths 32 32 | doc_id stringlengths 7 13 | section stringlengths 3 121 | content stringlengths 0 2.2M |
|---|---|---|---|
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.1 General | The European standard for the design of environmental control within structures housing data centres (which can be applied to other ICT sites) is CENELEC EN 50600-2-3 [i.7]. NOTE: CENELEC EN 50600-2-3 [i.7] is the basis for ISO/IEC TS 22237-4 [i.41] (in preparation as a future ISO/IEC 22237-4 in 2020). This clause cont... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2 Design practices | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.1 Overview | The energy consumption related to environmental control of the spaces in an ICT site depends upon many factors including: • the waste heat produced by the mechanical, power distribution and ICT equipment; NOTE: ICT sites of higher Availability Class, containing redundant mechanical, power distribution and ICT infrastru... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.2 Overview | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.2.1 Thermal segregation | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.2.1.1 Basic "hot aisle - cold aisle" concepts | Cooling efficiency decreases if the hot air and cold air become mixed within an ICT space. The mixing can be avoided by the use of thermal segregation techniques. Thermal segregation is achieved by creating areas within the ICT spaces that are designed as dedicated "hot aisles" and "cold aisles". The application of the... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.2.1.2 "Pod" concepts | Vendors are predicting trends for ICT equipment with significantly increased energy consumption density (kW/m2). This is an issue for many of legacy ICT sites that are not designed to provide such high levels of cooling. If there are no restrictions on floor space, such as in an ICT site following consolidation initiat... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.2.2 Airflow management in cabinets/racks | Any potential improvements in energy usage offered by the approaches detailed in clause 8.2.2.1 may be impacted by the failure of installers and maintainers to fit/re-fit "blanking panels" in the front and, where necessary, the rear of the racks within cabinets when equipment is not installed or has been removed - whic... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3 "Free cooling" | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3.1 General | The ICT site design, the set points and ranges of temperatures of the environmental control system should enable operation without refrigeration for a significant part of the year evaluated against a Typical Meteorological Year for the site. The application of "free cooling" concept is a requirement of ETSI EN 305 174-... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3.2 Direct air free cooling | Use external air mixed with hot exhaust air to control supply air temperature and humidity to cool the facility. This design tends to have the lowest difference between Ti and To and supply air and the ICT equipment is exposed to a large humidity and temperature range to allow direct air side economization to work effe... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3.3 Indirect air free cooling | Internal air is cooled using an air-to-air heat exchanger with the external air. When the outside air is not directly useable it is conditioned before cooling the internal air. A variation of this is a thermal wheel, quasi-indirect free cooling system. This design of cooling system requires a minimal difference between... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3.4 Indirect water free cooling | Chilled water is cooled by the external ambient conditions via a heat exchanger which is used between the condenser and chilled water circuits. This may be achieved by cooling towers or dry coolers; the dry coolers may have evaporative assistance through spray onto the coolers. This design tends to have a higher differ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3.5 Absorption free cooling | This kind of economizer takes advantage of physical and chemical characteristics of absorption or adsorption processes. Thanks to this process the heat expelled by the ICT equipment is used to power the cooling system in place of electricity. The absorption free cooling system is not is common use. |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.3.6 Adiabatic cooling | This principle uses evaporation of water as a primary mechanism to cool either a chilled water loop or for latest technologies, directly cooling the inside air. This latest technology uses much less water than open cooling towers. |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.4 Direct cooling | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.4.1 Cooling-on-the-chip | This next generation technology aims to directly apply the cooling to the semiconductor packages within equipment such as servers. Hardware manufacturers are working on these technologies which are predicted to provide significant improvements in energy efficiency. ETSI ETSI TS 105 174-2 V1.3.1 (2020-01) 40 |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.4.2 Liquid cooling | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.4.2.1 Direct water free cooling (Cooling-on-the-rack) | Chilled water is cooled by the external ambient air via a free cooling coil, it may be achieved by dry coolers or by evaporative assistance through spray onto the dry coolers. This design tends to have a medium difference between Ti and To. The ICT equipment operating humidity range may be well controlled at negligible... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.4.2.2 Liquid submersion cooling (oil cooling) | The system consists of a rack placed horizontally on the floor filled with coolant, a device for circulating and cooling the fluid up is installed to an external heat exchanger. The rack is based on a fluid recovery device, mainly composed of absorbent material (fluid can be: mineral oil, vegetal oil, natural/synthetic... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.2.5 Enhancements of cooling systems | The following enhancements of cooling systems involve high capital and operational expenditure and represent a significant risk in terms of business continuity and quality of service during the implementation phase: a) optimization of ICT sites airflow configuration; b) installation of high-efficiency CRAC units; c) si... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3 Operational practices | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.1 General | Thermal measurement software tools can be employed to determine the thermal patterns within the ICT site without significant capital expenditure since the costs are restricted to the fees for the software and the operational expenditure for the installation and customization. This can include infra-red photographs of t... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.2 Temperature and humidity settings | Increasing the temperature and adjusting humidity levels in ICT site spaces without violating vendors' specifications enables substantial reductions in energy usage associated with environmental control. The level of reduction depends upon some basic factors such as the size of the space and occupancy ratio. The temper... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.3 Environment control equipment | Table 29 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Further information can be obtained by reading the relevant reference. Table 29: CLC/TR 50600-99-1 [1] practices addressing environmental control equipment Practice (information in any "Notes" of each practice is... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.4 Air flow in cabinets/racks | The application of blanking plates is a requirement of ETSI EN 305 174-2 [3] for all ICT sites using air-cooling (see clause 5.3.2). Table 30 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Further information can be obtained by reading the relevant reference. Table 30... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.5 Measurement, monitoring and reporting | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.5.1 Energy | This involves the review of the existing mechanical equipment in terms of its energy efficiency enabling the MMR of relevant information. This may be undertaken without significant capital expenditure. The selection of mechanical equipment to enable MMR is a requirement of ETSI EN 305 174-2 [3] for all ICT sites (see c... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.5.2 Air quality | Table 32 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Further information can be obtained by reading the relevant reference. Table 32: CLC/TR 50600-99-1 [1] practices addressing air quality MMR Practice (information in any "Notes" of each practice is not shown) Refe... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.3.6 Maintenance | The maintenance of mechanical equipment is a requirement of ETSI EN 305 174-2 [3] for all ICT sites (see clause 5.3.2). |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4 Example outcomes | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4.1 General | Table 33 shows the typical outcomes resulting from the implementation of energy management practices within the power distribution system. ETSI ETSI TS 105 174-2 V1.3.1 (2020-01) 46 Table 33: Typical outcomes resulting from energy management practices on environmental control Description Reference in the present docume... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4.2 Free cooling | Reduction in energy consumption of the environmental control system can be calculated as: = × × where: R = savings W = fraction of energy consumption of ICT site used by environmental control system during periods without free cooling H = fraction of hours of matching conditions per annum F = fraction of environm... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4.3 Temperature and humidity settings | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4.3.1 Energy consumption | Experiments have been undertaken by some major telecommunications operators to determine the impact of increasing the average temperature in computer rooms without violating vendors' specifications. Details of experiment are as detailed below: • The experiment described below was undertaken in an ICT site using a telec... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4.3.2 Time to "system shut-down" | Many types of information technology equipment undergo automatic shut-down when temperatures exceed the vendors' maximum operating temperature specification (typically 30 °C or 32 °C). The available time to repair and/or restart cooling before automatic shut-down occurs is a major operational concern. The time to syste... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 8.4.3.3 Restrictions on implementation | In an ICT site of Availability Class 4 in accordance with CENELEC EN 50600-1 [i.4] (see Annex A) , the risk posed by a cooling system failure is reduced by the presence of redundant environmental control systems and/or power distribution equipment. Any associated risks of operating the information technology and NTE ar... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.1 General | It is common to focus on new services and equipment being installed into the data centre but there are also substantial opportunities to achieve energy and cost reductions from within the existing service and physical estate. This clause contains practices that are applicable to the design of new or refurbished ICT sit... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.2 Design practices | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.2.1 Auditing the ICT estate | This involves an audit of the existing physical and logical estate. Table 36 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Further information can be obtained by reading the relevant reference. Table 36: CLC/TR 50600-99-1 [1] practices addressing audits of ICT estate... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.2.2 Obsolete ICT equipment | ICT equipment without any activity such as old servers, switches and routers should be identified, switched off and removed. This typically represents a small percentage of the installed equipment (possibly 5 %) but decommissioning of this equipment provides an immediate reduction in energy consumption without any redu... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.2.3 Selection of new ICT equipment | This involves the replacement of existing equipment from previous generations of technology with the most recent, more energy efficient ICT equipment. NTE should consider products recognizing the EU Code of Conduct for energy consumption of broadband equipment. For servers this may be through the application of ETSI EN... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.2.4 Installation of new ICT equipment | When installing ICT equipment into cabinets/racks ensure that the air flow direction matches the air flow design for that area. If the equipment uses a different air flow direction to that defined for the area into which it is installed it should only be used with a correction mechanism such as ducts, or special racks ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.2.5 Software | Infrastructure management software brings some benefits in the way to manage the energy needs more efficiency, and have a clear view of the potential of power in a computer room, in a rack, in a server. Make the energy use performance of the software a primary selection factor and a major factor of the development proj... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3 Operational practices | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.1 Energy management | There are two separate rapid routes by which reductions of power consumption may be achieved by providing more efficient usage of existing resources within existing IT infrastructures without the need for changes to hardware. The routes are described as: • power management (see clause 9.3.2); • processing capacity mana... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.2 Power management | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.2.1 Activation of basic power management features | This involves the activation of any power management features within existing equipment. The application of dynamic allocation of equipment resources provides additional beneficial effects on power management. Table 41 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Fu... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.2.2 Activation of "sleep" mode | This involves the activation of sleep mode (that is not a system shut-down of the equipment) during periods without application activity during certain periods during days, weeks or months and can be applied to a variety of equipment. It may even be possible to consider a full system shut-down of certain pieces of equi... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3 Capacity management | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3.1 General | Capacity management is the ongoing, operational, process of estimation and allocation of space, environmental needs, computer hardware, software, and connection infrastructure resources to reflect the dynamic nature of ICT site users or interactions. As shown in Figure 11, capacity management addresses the following qu... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3.2 Environmental capacity management | This requires the measurement and subsequent management of electrical, cooling and space needs. In many cases this information is obtained manually, directly by the ICT site personnel. However, the best method is to apply software solutions. Table 43 shows the references for the relevant practices of CLC/TR 50600-99-1 ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3.3 Storage capacity management | This involves the use of shared data storage, active data compression and data de-duplication in order to maximize the utilization of storage capacity. The implementation of thin provisioning for storage, allowing the right disk-space is critical to the management of storage capacity. Table 44 shows the references for ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3.4 Server capacity management | This involves the use of existing equipment when additional server capacity is required. This approach is a step towards the consolidation initiatives of clauses 9.3.4 and 9.4.3. Table 45 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Further information can be obtain... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3.5 Network capacity management | Table 46 shows the references for the relevant practices of CLC/TR 50600-99-1 [1] which support this topic. Further information can be obtained by reading the relevant reference. ETSI ETSI TS 105 174-2 V1.3.1 (2020-01) 58 Table 46: CLC/TR 50600-99-1 [1] practices addressing network capacity management Practice (informa... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.3.6 On-demand scalability for on-line business | This requires the implementation of pre-packaged virtual environments, including all logical components necessary to run the application, and a "utility computing" tool to distribute them across the infrastructure taking account of, for example, the number of connections to the service. A critical aspect is that the au... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.4 Server consolidation | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.4.1 Consolidation of servers | The consolidation of processing within existing servers is the best way toward reduce energy costs for given level of service. The result of consolidation is a reduction in the number of servers which has a direct impact on the ICT infrastructure power requirements which has a corresponding effect on reductions in requ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.4.2 Virtualization | Virtualization allows running several servers on the same physical server. It is a pre-requisite for a shared infrastructure policy. It does not change the number of servers but reduces the number of supporting physical servers. Although virtualization bring no gains on total cost of ownership of supporting the physica... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.4.3 Physical consolidation | Physical consolidation involves the gathering of stand-alone hardware within a physically more powerful container, as shown in Figure 12 and can be achieved without using virtualization if the server technology allows partitioning features. A physical consolidation programme has the following effects: • reduction in th... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.3.5 Measurement, monitoring and reporting | Reporting the utilization of the ICT equipment is a key factor in optimizing the energy efficiency of the ICT sites. There are three different types of IT reporting; server, network and storage utilization: • a basic level of internal reporting and logging of the processor utilization of the overall or grouped service/... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.4 Example outcomes | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.4.1 General | Table 48 shows the typical outcomes resulting from the implementation of energy management practices within the ICT equipment and associated cabling infrastructure. Hypervisor OS OS OS Virtual server Virtual server Virtual server Application Application Application OS Application OS Application OS Application Physical ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.4.2 Power management | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.4.2.1 Activation of "sleep" mode | An active, last generation x86 mono or bi-processor, server has a typical mean consumption of 240 W. The same server in "sleep" mode has a typical consumption of 80 W and 0 W when switched-off. In the experiment undertaken, 200 such servers were identified that could be put in sleep mode or switched off: • during weeke... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.4.3 Server consolidation | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 9.4.3.1 Virtualization | Figure 13 provides a methodology to evaluate energy savings for a virtualized panel of servers. Other indirect savings could be also evaluated if the virtualization affects the cooling requirements in the computer room. ETSI ETSI TS 105 174-2 V1.3.1 (2020-01) 61 Figure 13: Energy savings from virtualization An Objectiv... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 10.1 ETSI EN 305 174-8 and ETSI TS 105 174-8 | ETSI EN 305 174-8 [4] specifies requirements and recommendations for the ICT sector to contribute actively to the WEEE collection objectives as defined in the WEEE Directive. No. of servers X Energy consumption per server (W) W1 No. of servers X/R Energy consumption per server (W) W2 Virtualization Consolidation ratio ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 10.2 Practices of CLC/TR 50600-99-2 | Table 49 shows the references for practices within CLC/TR 50600-99-2 [i.1] that support the application of ETSI EN 305 174-8 [4] and ETSI TS 105 174-8 [5]. Further information can be obtained by reading the relevant reference. Table 49: CLC/TR 50600-99-2 [i.1] practices addressing reduction of WEEE Practice Reference w... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 10.3 Eco-management and sustainability | |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 10.3.1 Eco-design | Eco-design targets the reduction of environment impacts by savings of raw materials, energy consumption and transportation emissions in line with environmental sustainability objectives. There are three elements of eco-design: • eco-design for manufacturing with the use of minimal raw material quantities; • eco-design ... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 10.3.2 LCA | LCA is discussed in clause 10.2 and is standardized, in general, in ISO 14040 [i.27] and ISO 14044 [i.28] and which provide the basis of the following documents: • ETSI TS 103 199 [i.25]: which establishes generic and specific requirements for LCA of ICT Equipment, Networks and Services and the document is valid for al... |
d5dcdc7007958ac950012314e8b6e4ab | 105 174-2 | 10.3.3 Energy management | ISO 50001 [i.33] can be used to certify (in accordance with recognized certification schemes) an organization's policy and achievements in the area of energy management. NOTE: It should be noted that ISO 50001 [i.33] certification focusses on continual improvements in the reduction, and improvements of efficiency of, e... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 1 Scope | The present document describes the general aspects and principles of the E2 interface between Near-RT RIC and one or more E2 Nodes, including the interaction with applications hosted in the Near-RT RIC. |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 2 References | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE 1: While any hyperlinks... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 3 Definition of terms, symbols and abbreviations | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 3.1 Terms | For the purposes of the present document, the terms given in ETSI TR 121 905 [i.1], ETSI TS 103 982 [18] and the following apply: RAN Function: specific function in an E2 Node; examples include X2AP, F1AP, E1AP, S1AP, NGAP interfaces and RAN internal functions handling UEs, Cells, etc. RIC Service: service provided on ... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 3.2 Symbols | Void. ETSI ETSI TS 104 038 V4.1.0 (2024-10) 8 |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI TR 121 905 [i.1], ETSI TS 103 982 [18] and the following apply: RAT Radio Access Technology TNL Transport Network Layer TNLA TNL Association |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 4 E2 Interface Architecture | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 4.1 General Architecture Principles | The general principles guiding the definition of the E2 interface between Near-RT RIC and E2 Nodes are the following: - Near-RT RIC and E2 Node functions are fully separated from transport functions. Addressing scheme used in Near-RT RIC and the E2 Nodes shall not be tied to the addressing schemes of transport function... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 4.2 O-RAN Architecture Considerations | The Near-RT RIC and E2 Nodes connected by the E2 interface, as presented in Figure 4.2-1, are part of the overall O-RAN Architecture [18]. E2 Node E2 Node O-CU-CP O-CU-UP O-DU O-RU F1-c E2 Node E2 Near-RT RIC E2 E2 E2 Node O-eNB E2 E1 Open Fronthaul F1-u Figure 4.2-1: O-RAN Architecture Overview showing Near-RT RIC int... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5 E2 Interface | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.1 E2 interface requirements and general principles | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.1.1 E2 Interface Requirements | The E2 interface shall support the following requirements: - E2 interface shall uniquely identify each E2 Node configured to directly provide RIC Services to the Near-RT RIC. - A given Near-RT RIC may support E2 connections from multiple E2 Nodes, each supporting a specific RAT type. - E2 interface shall expose from th... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.1.2 E2 interface general principles | The general principles for the specification of the E2 interface are as follows: - E2 interface is open. - E2 interface supports the exchange of control signalling information between the endpoints. - E2 is a point-to-point interface between the endpoints on Near-RT RIC and E2 Node. - E2 interface definition supports i... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.2 E2 interface specification objectives | The E2 interface specifications shall facilitate the following: - Connectivity between Near-RT RIC and E2 Node supplied by different vendors. - Exposure of selected E2 Node data (e.g. configuration information (cell configuration, supported slices, PLMNs, etc.), network measurements, context information, etc.) towards ... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3 Functions of the E2 Interface | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.1 General | The E2 functions are grouped into the following categories: RIC services: - RIC Services (REPORT, INSERT, CONTROL, POLICY and QUERY), as described in clause 5.3.2) supported by RIC functional procedures (RIC Subscription, RIC Subscription Modification, RIC Subscription Modification Required, RIC Subscription Delete, RI... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2 RIC services and related procedures | |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.1 RIC services | Near-RT RIC may use the following RIC services provided by an E2 node: - REPORT: Near-RT RIC uses a RIC Subscription and/or RIC Subscription Modification procedures to request that E2 Node sends a REPORT message to Near-RT RIC and the associated procedure continues in the E2 Node after each occurrence of a defined RIC ... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.2 REPORT service | The REPORT service involves following steps: 1) Near-RT RIC configures, and subsequently may modify, a RIC Subscription in the E2 Node with information for Indication (Report) that is to be sent by the E2 Node with each occurrence of RIC trigger event condition. ETSI ETSI TS 104 038 V4.1.0 (2024-10) 12 2) During normal... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.3 INSERT service | The INSERT service involves following steps: 1) Near-RT RIC configures, and subsequently may modify, a RIC Subscription in the E2 Node with information for an INSERT action, along with an associated Subsequent Action Information (Subsequent Action type, Time to Wait timer), that is to be performed by E2 Node with each ... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.4 CONTROL service | The CONTROL service involves following steps: Near-RT RIC detects an event trigger. This step may be triggered by either: a) a previous RIC INDICATION message sent by E2 Node; b) internal to Near-RT RIC. 1) Near-RT RIC performs an action. 2) Near-RT RIC sends a RIC CONTROL REQUEST message to E2 Node. This message may c... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.5 POLICY service | The POLICY service involves following steps: 1) Near-RT RIC configures, and subsequently may modify, a RIC Subscription in the E2 Node with information used to configure a POLICY that is to be performed by E2 Node with each occurrence of trigger event. 2) During normal functioning of the E2 Node, a trigger event is det... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.5A QUERY service | The QUERY service involves following steps: 1) Near-RT RIC determines need for RAN and/or UE-related information from the E2 node. 2) Near-RT RIC sends a RIC QUERY REQUEST message to E2 Node. This message contains the requested information that needs to be fetched from the E2 Node. The Near-RT RIC shall set the timer T... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.2.6 RIC service realization and relationship with E2AP procedures | The RIC Services may be realized using the following RIC Functional procedures: RIC Subscription procedure (Near-RT RIC initiated): - Used to install Event Trigger and associated sequence of Actions corresponding to one or more RIC services REPORT, INSERT and/or POLICY. RIC Subscription Modification procedure (Near-RT ... |
726509adae72df2686cf4ad7fa82ea05 | 104 038 | 5.3.3 Combining RIC services within a common RIC Subscription | RIC services defined in clause 5.3.2 may be combined within a common Subscription with each RIC Service implemented as part of a sequence of Actions. ETSI ETSI TS 104 038 V4.1.0 (2024-10) 22 Where appropriate in these cases, successive REPORT or INSERT messages sent to Near-RT RIC under the same subscription event trig... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.