Redirect server in a wireless communication network

A reachability controller in a service-based architecture, SBA, domain of a wireless communication network, the reachability controller comprising:

• communication circuitry and processing circuitry configured to:
• receive control signaling indicating that the transferred one of the resource and service is no longer available at an old location, the control signaling being received from an old manager that managed the transferred one of the resource and service at the old location, the control signaling being received from one of a network node and a function responsible for operation and maintenance in the wireless communication network;
• configure a Domain Name Service, DNS, server to resolve the old location of a transferred one of a resource and service in the SBA domain into an address of a redirect server in the SBA domain;
• and
• configure the redirect server to redirect a request targeting the old location of the transferred one of the resource and service to a new location of the resource or service.

A requestor in a service-based architecture, SBA, domain of a wireless communication network, the requestor comprising:

• communication circuitry and processing circuitry configured to:
• transmit, from the requestor to a domain name system, DNS, server in the SBA domain, a DNS request to resolve an old Uniform Resource Identifier, URI, of a transferred one of a resource and service in the SBA domain;
• receive, from the DNS server, a response to the DNS request that indicates an address of a redirect server in the SBA domain;
• transmit, from the requestor to the address of the redirect server, a service request that targets the old URI of the transferred one of the resource and service, the old URI corresponding to an old manager that managed the transferred one of the resource and service at an old location, the transferred one of the resource and service being associated with control signaling transmitted from the old manager to the redirect server indicating the transferred one of the resource and service is no longer available at the old location, the control signaling being transmitted from one of a network node and a function responsible for operation and maintenance in the wireless communication network;
• and
• receive, from the redirect server, a response to the service request that redirects the requestor to a new URI of the transferred one of the resource and service in the SBA domain.