Method of controlling cell selection for a wireless communication system and related device
First Claim
1. A method of controlling closed subscriber group, hereinafter called CSG, cell selection for a user equipment, hereinafter called UE, used in a wireless communication system comprising a network, the UE comprising a whitelist capable of providing a list of accessible CSG cells, the method comprising:
- updating the whitelist when the UE subscribes to a CSG cell that is not included in the whitelist or does not subscribe to a CSG cell in the whitelist, wherein updating the whitelist comprises;
receiving a first message from the network; and
adding the CSG cell not included in the whitelist to the whitelist according to the first message when the UE subscribes to the CSG cell not included in the whitelist, or removing the CSG cell from the whitelist according to the first message when the UE does not subscribe to the CSG cell in the whitelist.
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Abstract
A method of controlling CSG, known as closed subscriber group, cell selection for a wireless communication system is provided. The wireless communication system includes a network and a user equipment including a whitelist capable of providing a list of accessible CSG cells. The method includes updating the whitelist when the user equipment subscribes to a CSG cell that is not included in the whitelist or does not subscribe to a CSG cell in the whitelist.
36 Citations
13 Claims
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1. A method of controlling closed subscriber group, hereinafter called CSG, cell selection for a user equipment, hereinafter called UE, used in a wireless communication system comprising a network, the UE comprising a whitelist capable of providing a list of accessible CSG cells, the method comprising:
updating the whitelist when the UE subscribes to a CSG cell that is not included in the whitelist or does not subscribe to a CSG cell in the whitelist, wherein updating the whitelist comprises; receiving a first message from the network; and adding the CSG cell not included in the whitelist to the whitelist according to the first message when the UE subscribes to the CSG cell not included in the whitelist, or removing the CSG cell from the whitelist according to the first message when the UE does not subscribe to the CSG cell in the whitelist. - View Dependent Claims (2, 3, 4, 5)
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6. A method of controlling CSG (Closed Subscriber Group) cell selection for a user equipment of a wireless communication system, the user equipment (UE) comprising a whitelist capable of providing a list of accessible CSG cells, the method comprising:
performing CSG cell searching when a new CSG cell is added to the whitelist, such that the UE is able to reselect the new CSG cell even though none of cell reselection criteria for the new CSG cell measurement is met or none of measurement criteria for the new CSG cell measurement is met. - View Dependent Claims (7)
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8. A method of controlling CSG (closed subscriber group) cell selection for a user equipment, hereinafter called UE, used in a wireless communication system with a network, the UE comprising a whitelist capable of providing a list of accessible CSG cells, the method comprising:
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receiving a paging message from the network when the UE camps on a CSG cell in the whitelist and does not subscribe to the CSG cell; initiating a service request procedure when the paging message is received; through the service request procedure, receiving a SERVICE REJECT message comprising a reject cause value from the network; and searching a cell other than the CSG cell when the reject cause value of the SERVICE REJECT message is received. - View Dependent Claims (9, 10, 11, 12)
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13. A method of controlling closed subscriber group, CSG, cell selection for a network of a wireless communication system, the method comprising:
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sending a paging message to a user equipment, UE, of the wireless communication system, the UE comprising a whitelist capable of providing a list of accessible CSG cells, wherein the UE camps on a CSG cell in the whitelist and does not subscribe to this CSG cell; and sending a SERVICE REJECT message including a reject cause value to the UE when UE initiates a SERVICE REQUEST procedure in response to the paging message, such that the UE has to search a cell other than the currently camped CSG cell when the reject cause value of the SERVICE REJECT message is received by the UE.
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Specification