Method and system for setting a hold-timer duration

In a wireless communication system comprising a first access network and a second access network, a method comprising:

• the first access network serving a user equipment device (UE) by providing the UE with data service, wherein serving the UE comprises allocating a resource of the first access network to the UE and using the resource to serve the UE;
• detecting a circuit-switched-fallback transition of the UE from being served by the first access network to being served by the second access network;
• and
• responsive to the detecting, (i) selecting a hold-timer duration for a hold-timer, the hold timer duration defining a time period before the first access network releases the allocated resource, wherein selecting the hold-timer duration comprises (a) the first access network selecting (1) a first value based on a determination of a network load of the first access network, (2) a second value based on a determination of a data-service type of the data service, and (3) a third value based on a determination of an estimated call duration for the UE and (b) the first access network using the sum of the first value, the second value, and the third value as a basis to select the hold-timer duration and (ii) starting the hold-timer having the selected hold-timer duration, wherein the first access network is configured to release the allocated resource upon expiration of the hold-timer duration.

A wireless communication system comprising:

• a first access network configured to provide a plurality of first coverage areas in which to serve user equipment devices (UEs) according to a first air interface protocol;
• and
• a second access network configured to provide a plurality of second coverage areas configured to serve UEs according to a second air interface protocol,
• wherein the first access network is configured to allocate a resource to a UE and use the resource to serve the UE by providing the UE with data service,
• wherein the first access network is configured to detect a circuit-switched-fallback transition of the UE from being served by the first access network to being served by the second access network, and, in response to detecting the transition, (i) select a hold-timer duration for a hold-timer, the hold-timer duration defining a time period before the first network releases the allocated resource, wherein selecting the hold-timer duration comprises (a) the first access network selecting (1) a first value based on a determination of a network load of the first access network, (2) a second value based on a determination of a data-service type of the data service, and (3) a third value based on a determination of an estimated call duration for the UE and (b) the first access network using the sum of the first value, the second value, and the third value as a basis to select the hold-timer duration and (ii) start the hold-timer having the selected hold-timer duration, wherein the first access network is further configured to release the allocated resource upon expiration of the hold-timer duration.