| Discussion and conclusion:
Orange asked for clarification of the flexible chaining for functions. AT&T clarified that this should be changed to 'network functions' and the definition of network functions will need to be added. ZTE commented that this should be made more generic and state that solutions should support flexible interconnection of network functions. Telecom Italia disagreed as chaining is different from interconnection and asked for clarification of what type of solutions are expected to be proposed. Cisco clarified that the solutions should include whether they are realised as a single functional entity or by some separate functional entities. Sandvine suggested using 'flexible instantiation of functions'. ZTE commented that this is not instantiation and it does not apply for physical functional entities. The SA WG2 Chairman asked whether the centralised or distributed aspects should also be included in the criteria. This was left for further off-line discussion and revised, merging TD S2 160094, TD S2 160252 and TD S2 160283 in TD S2 160754.
TD S2 160754 (P-CR) Key issue on Modular Logical Functions in the NextGen System. (Source: AT&T, Qualcomm Inc., Deutsche Telekom, China Mobile, China Telecom, Sprint, Cisco Systems, Nokia Networks, Huawei, Vodafone, Allot Communications, Verizon, Alcatel -Lucent, Alcatel-Lucent Shanghai-Bell, ZTE, KDDI, KPN, Broadcom, Sandvine, Telecom Italia, Mediatek).
Abstract: This contribution aims to add a key issue on granularity and modularity of logical functions in NextGen Core Network.
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