Method for State Transition and Network Device

Abstract

A method for a state transition includes determining whether a user equipment (UE) is a UE frequently performing state transitions. When the state of the UE is required to be transitioned to the idle state, a state of the UE is transitioned to a paging channel (PCH) state if the UE is a UE frequently performing state transitions. If the UE is a UE infrequently performing state transitions, the state of the UE is transitioned to the idle state.

1 . A method for a state transition, the comprising:
 determining whether a user equipment (UE) is a UE frequently performing state transitions; and   when the state of the UE is required to be transitioned to an idle state, transitioning a state of the UE to a paging channel (PCH) state if the UE is a UE frequently performing state transitions and transitioning the state of the UE to the idle state if the UE is a UE infrequently performing state transitions.   
     
     
         2 . The method according to  claim 1 , wherein the determining comprises:
 obtaining an international mobile equipment identity TAC (IMEI TAC) of the UE; and   determining whether the UE is a UE frequently performing state transitions according to the IMEI TAC.   
     
     
         3 . The method according to  claim 2 , wherein obtaining the IMEI TAC of the UE comprises:
 sending an identity request to the UE;   receiving an international mobile equipment identity (IMEI) returned by the UE according to the identity request; and   obtaining the IMEI TAC from the IMEI.   
     
     
         4 . The method according to  claim 1 , wherein the determining comprises:
 obtaining a subscriber identity corresponding to the UE; and   determining whether the UE is a UE frequently performing state transitions according to the subscriber identity.   
     
     
         5 . The method according to  claim 4 , wherein the subscriber identity comprises a temporary mobile subscriber identity (TMS I). 
     
     
         6 . The method according to  claim 4 , wherein the subscriber identity comprises an international mobile subscriber identity (IMSI). 
     
     
         7 . The method according to  claim 1 , wherein determining comprises:
 receiving online state detection information sent by the UE within a preset counting time; and   determining whether the UE is a UE frequently performing state transitions according to a number of times the online state detection information is received from the UE.   
     
     
         8 . The method according to  claim 7 , wherein determining whether the UE is a UE frequently performing state transitions comprises:
 determining that the UE is a UE frequently performing state transitions if the number of times is larger than or equal to a preset threshold; and   determining that the UE is a UE infrequently performing state transitions if the number of times is smaller than the threshold.   
     
     
         9 . The method according to  claim 1 , further comprising determining that the state of the UE is required to be transitioned to the idle state. 
     
     
         10 . The method according to  claim 9 , wherein determining that the state of the UE is required to be transitioned to the idle state comprises determining that a signaling connection release indication sent by the UE has been received. 
     
     
         11 . The method according to  claim 9 , wherein determining that the state of the UE is required to be transitioned to the idle state comprises determining that no service data sent by the UE has been received within a preset counting time of a timer when the UE is in a dedicated channel (DCH) state. 
     
     
         12 . A network device, comprising:
 a determining module, configured to determine whether a user equipment (UE) is a UE frequently performing state transitions; and   a state transition module, configured to, when the state of the UE is required to be transitioned to an idle state, transition a state of the UE to a paging channel (PCH) state if the determining module judges that the UE is a UE frequently performing state transitions and transition the state of the UE to the idle state if the determining module judges that the UE is a UE infrequently performing state transitions.   
     
     
         13 . The network device according to  claim 12 , wherein the determining module comprises:
 a first obtaining sub-module, configured to obtain an international mobile equipment identity TAC (IMEI TAC) of the UE; and   a first determining sub-module, configured to determine whether the UE is a UE frequently performing state transitions according to the IMEI TAC obtained by the first obtaining sub-module.   
     
     
         14 . The network device according to  claim 13 , wherein the first obtaining sub-module is further configured to send an identity request to the UE, to receive an international mobile equipment identity (IMEI) returned by the UE according to the identity request, and to obtain the IMEI TAC from the IMEI. 
     
     
         15 . The network device according to  claim 12 , wherein the determining module comprises:
 a second obtaining sub-module, configured to obtain a subscriber identity corresponding to the UE; and   a second judging sub-module, configured to determine whether the UE is a UE frequently performing state transitions according to the subscriber identity obtained by the second obtaining sub-module.   
     
     
         16 . The network device according to  claim 12 , wherein the determining module comprises:
 a receiving sub-module, configured to receive online state detection information sent by the UE within a preset counting time; and   a third judging sub-module, configured to determine whether the UE is a UE frequently performing state transitions according to a number of times the online state detection information is received by the receiving sub-module from the UE.