RAN signaled bitmap splitting for roaming and non-roaming users
The disclosure relates to a method ( 20 ) performed in a communication device ( 2 ). The method ( 20 ) comprises obtaining ( 21 ) a policy comprising one or more rules associated with different values of a parameter, the parameter comprising a first part and a second part; receiving ( 22 ) the parameter; and applying ( 24, 26 ) a rule associated with a value of the first part of the parameter or a rule associated with a value of the second part of the parameter. The disclosure also relates to a corresponding method in a communication system ( 1 ), to a communication device ( 2 ), a communication system ( 1 ), computer programs and computer program products.
1. A method performed in a communication device, the method comprising:
obtaining a policy comprising one or more access network discovery and selection function, ANDSF, rules associated with different values of an offloading preference indicator, OPI, the OPI comprising a first part and a second part, wherein the obtaining comprises receiving the policy from a network node ( 2 ) or obtaining a policy preconfigured in the communication device;
receiving the OPI;
establishing whether being in a non-roaming or a roaming state;
applying an ANDSF rule associated with a value of the first part of the OPI or an ANDSF rule associated with a value of the second part of the OPI depending on whether the communication device is in a non-roaming or roaming state, and
wherein the first part of the OPI comprises an operator specific part and the second part of the OPI comprises a public part.
2. The method as claimed in claim 1 , wherein the ANDSF rule comprises directing some or all communication traffic to a radio access network different from a currently serving radio access network or directing some or all traffic between two currently serving radio access networks.
3. The method as claimed in claim 1 , wherein the first part comprises N least significant bits of the OPI or N most significant bits of the OPI, and wherein the second part comprises the remaining bits of the OPI.
4. The method as claimed in claim 1 , wherein the OPI is received from a serving network node.
5. A non-transitory computer readable storage medium storing a computer program for a communication device, the computer program comprising computer program code that, when executed on at least one processor on the communication device, causes the communication device to:
obtain a policy comprising one or more access network discovery and selection function, ANDSF, rules associated with different values of an offloading preference indicator, OPI, the OPI comprising a first part and a second part, wherein the obtaining comprises receiving the policy from a network node ( 2 ) or obtaining a policy preconfigured in the communication device;
receive the OPI;
establish whether being in a non-roaming or a roaming state;
apply an ANDSF rule associated with a value of the first part of the OPI or an ANDSF rule associated with a value of the second part of the OPI depending on whether the communication device is in a non-roaming or roaming state, and
wherein the first part of the OPI comprises an operator specific part and the second part of the OPI comprises a public part.
6. A communication device, comprising:
radio circuitry; and
processing circuitry operatively associated with the radio circuitry and configured to:
obtain a policy comprising one or more access network discovery and selection function, ANDSF, rules associated with different values of an offloading preference indicator, OPI, the OPI comprising a first part and a second part, wherein the obtaining comprises receiving the policy from a network node ( 2 ) or obtaining a policy preconfigured in the communication device;
receive the OPI;
establish whether being in a non-roaming or a roaming state;
apply an ANDSF rule associated with a value of the first part of the OPI or an ANDSF rule associated with a value of the second part of the OPI depending on whether the communication device is in a non-roaming or roaming state, and
wherein the first part of the OPI comprises an operator specific part and the second part of the OPI comprises a public part.
7. The communication device as claimed in claim 6 , wherein the rule comprises directing some or all communication traffic to a radio access network different from a currently serving radio access network or directing some or all traffic between two currently serving radio access networks.
8. The communication device as claimed in claim 6 , wherein the first part of the OPI comprises N least significant bits of the OPI or N most significant bits of the OPI, and wherein the second part comprises the remaining bits of the OPI.
9. The communication device as claimed in claim 6 , wherein the processing circuitry is configured to receive the OPI from a serving network node.