Method and device in a mobile station for avoiding repeated registration
DCFirst Claim
1. 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.
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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.
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Citations
18 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
creating the erasable part of the list in a volatile storage connected to a computer in the mobile terminal; and
transferring onto the erasable part of the list each identity outputted from the non-volatile SIM card list when a new rejected PLMN is inserted onto the SIM card list.
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4. The method according to claim 3, wherein the erasable part of the list is erased when the SIM card is removed from the mobile terminal.
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5. The method according to claim 1, further comprising the step of automatically erasing the erasable list part at one of a predetermined and an arbitrary interval.
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6. The method according to claim 5, wherein each automatic erasing occurs at a predetermined time after which the erasable list part is made writable again, wherein the erasure depends on one of a switch off, a removal of a SIM card, and an automatic erase.
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7. 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:
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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. - View Dependent Claims (8, 9)
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10. A method for avoiding repeated attempts by a mobile terminal to register on Public Land Mobile Networks (PLMNs), the method comprising the steps of:
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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. - View Dependent Claims (11, 12, 13, 14)
inserting an arbitrary identity of a rejected PLMN onto the part of the list that is erased from time to time; and
erasing the arbitrary identity on another part of the list if the arbitrary identity is already on the list.
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14. The method of claim 10, further comprising the step of automatically erasing the part of the list that is erased from time to time at one of a predetermined interval and an arbitrary interval.
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15. A device for avoiding repeated attempts by a mobile terminal to register on Public Land Mobile Networks (PLMNs), comprising:
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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. - View Dependent Claims (16, 17, 18)
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Specification