Method and device in a mobile station for avoiding repeated registration
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorStig Roland Bodin
Life of this patent
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Abstract
A method and device avoid repeated registration attempts to register on PLMNs which do not allow registration for a mobile terminal while permitting attempts to register on PLMNs earlier inserted in a list of a number of identities of rejected PLMNs in a storage in the terminal but which may allow registration at a later time. At least a part of the list is erasable to be erased from time to time. Surplus identities of rejected PLMNs on a non-volatile part of the list are transferred to the erasable part of the list at overflow of the non-erasable list.
Claims18
A method for avoiding repeated attempts to register on PLMNs which do not allow registration for a mobile terminal while permitting attempts to register on PLMNs earlier inserted on a list of a number of identities of rejected PLMNs in a storage in the terminal but which may allow registration at a later time, the method comprising:
- providing at least a part of the list which is erasable to be erased from time to time;
- transferring surplus identities of rejected PLMNs on a non-erasable part of the list to the erasable part of the list;
- inserting an arbitrary identity of a rejected PLMN onto the non-erasable part of the list at control;
- and
- erasing the arbitrary identity on another part of the list if the arbitrary identity is already on the list.
A device for avoiding repeated attempts to register on PLMNs which do not allow registration for a mobile terminal while permitting attempts to register on PLMNs earlier inserted in a list of a number of identities of rejected PLMNs in a storage in the terminal but which may allow registration at a later time, wherein the list comprises:
- a non-volatile list part, into which the identities of rejected PLMNs are written;
- and
- a volatile list part, into which one of the identities on the non-volatile list part is transferred if the non-volatile list part is full, the transfer occurring as soon as a new identity is written into the non-volatile list part;
- and
- wherein the device comprises:
- means for inserting an arbitrary identity of a rejected PLMN onto the non-volatile list part at control;
- and
- means for erasing the arbitrary identity on another list part if the arbitrary identity is already on the list.
A method for avoiding repeated attempts by a mobile terminal to register on Public Land Mobile Networks (PLMNs), the method comprising the steps of:
- providing a list of a number of identities of rejected PLMNs, wherein at least a part of the list is erased from time to time;
- attempting to register on a PLMN that is not on the list;
- if the attempt to register is unsuccessful, then adding the identity of the rejected PLMN onto the part of the list that is not erased from time to time;
- and
- if the part of the list that is not erased from time to time is full, then transferring surplus identities of rejected PLMNs from the part of the list that is not erased from time to time to the part of the list that is erased from time to time.
A device for avoiding repeated attempts by a mobile terminal to register on Public Land Mobile Networks (PLMNs), comprising:
- a list of a number of identities of rejected PLMNs, wherein at least a part of the list is erased from time to time;
- means for attempting to register on a PLMN that is not on the list;
- means for adding the identity of the rejected PLMN onto the part of the list that is not erased from time to time;
- and
- means for transferring surplus identities of rejected PLMNs from the part of the list that is not erased from time to time to the part of the list that is erased from time to time.
Dependencies are inferred from the claim text.