This requires a change in how xApps register their policy types. right now this uses RMR routing based on static integers (declared in the xapp descriptor).

see also: https://lists.o-ran-sc.org/g/discuss/topic/87699968#440

from old documentation:

There is no notion of policy types in the first versions of the spec, however this aspect is quite critical for the intended use of the RIC, where many Xapps may implement the same policy, and new Xapps may be created often that define new types. Moreover, policy types define the schema for policy instances, and without types, A1 cannot validate whether instances are valid, which the RIC A1m does. The RIC A1 Mediator view of things is that, there are a set of schemas, called policy types, and one or more instances of each schema can be created. Instances are validated against types. The spec currently provides no mechanism for the implementation of A1 to know whether policy [instances] are correct since there is no schema for them. This difference has the rather large consequence that none of the RIC A1m URLs match the spec.