Method and System for Discontinuous Reception De-Synchronization Detection

Abstract

A method and apparatus for discontinuous reception desynchronization detection between an enhanced Node B and a user equipment, the method having the steps of: waiting for a predefined event to occur; and upon the predefined event occurring, sending a message from one of the enhanced Node B and the user equipment to the other of the enhanced Node B and user equipment, wherein the message contains one of a request for discontinuous reception period information or discontinuous reception period information, the discontinuous reception period information or discontinuous reception period information being utilized to detect desynchronization.

1 . A method for detecting a discontinuous reception (DRX) de-synchronization between a network and a user equipment (UE), the method comprising the steps of:
 sending a request message from the network to the UE, wherein said request message includes a request for a DRX period information of the UE;   receiving a response message from the UE to the network, wherein said response message includes the DRX period information of the UE;   detecting the DRX de-synchronization between the network and the UE; and   recovering from the DRX de-synchronization between the network and the UE.   
     
     
         2 . The method of  claim 1  further comprises comparing the DRX period information of the UE received in the response message with a DRX period information of the network. 
     
     
         3 . The method of  claim 1 , wherein the recovering comprises sending a continuous communication command from the network to the UE. 
     
     
         4 . The method of  claim 3 , wherein the recovering further comprises receiving a reply to the continuous communication command from the UE to the network. 
     
     
         5 . A method for detecting a discontinuous reception (DRX) de-synchronization between a network and a user equipment (UE), the method comprising the steps of:
 receiving a request message from the network to the UE, wherein said request message includes a request for DRX de-synchronization detection;   detecting the DRX de-synchronization between the network and the UE;   sending a response message from the UE to the network, wherein said response message includes a DRX de-synchronization detection flag, if detecting the DRX de-synchronization; and   recovering from the DRX de-synchronization between the network and the UE.   
     
     
         6 . The method of  claim 5 , wherein said request message includes a DRX period information of the network. 
     
     
         7 . The method of  claim 6  comprises comparing the DRX period information of the network with a DRX period information of the UE. 
     
     
         8 . The method of  claim 5 , wherein the recovering comprises receiving a continuous communication command from the network to the UE. 
     
     
         9 . The method of  claim 8 , wherein the recovering further comprises sending a reply to the continuous communication command from the UE to the network. 
     
     
         10 . A network adapted to detect a discontinuous reception (DRX) de-synchronization between the network and a user equipment (UE), the network comprising a communications subsystem and a processor, wherein the processor is configured to:
 send a request message from the network to the UE, wherein said request message includes a request for a DRX period information of the UE;   receive a response message from the UE to the network, wherein said response message includes the DRX period information of the UE;   detect the DRX de-synchronization between the network and the UE; and   recover from the DRX de-synchronization between the network and the UE.   
     
     
         11 . The network of  claim 10 , wherein the processor is further configured to compare the DRX period information of the UE received in the response message with a DRX period information of the network. 
     
     
         12 . The network of  claim 10 , wherein the recovering comprises the processor being configured to send a continuous communication command from the network to the UE. 
     
     
         13 . The network of  claim 12 , wherein the recovering further comprises the processor being configured to receive a reply to the continuous communication command from the UE to the network. 
     
     
         14 . A user equipment (UE) adapted to detect a discontinuous reception (DRX) de-synchronization between a network and the UE, the UE comprising a communications subsystem and a processor, wherein the processor is configured to:
 receive a request message from the network to the UE, wherein said request message includes a request for DRX de-synchronization detection;   detect the DRX de-synchronization between the network and the UE;   send a response message from the UE to the network if detecting the DRX de-synchronization, wherein said response message includes a DRX de-synchronization detection flag; and   recover from the DRX de-synchronization between the network and the UE.   
     
     
         15 . The UE of  claim 14 , wherein said request message includes a DRX period information of the network. 
     
     
         16 . The UE of  claim 15  comprises the processor being configured to compare the DRX period information of the network with a DRX period information of the UE. 
     
     
         17 . The method of  claim 16 , wherein the response from the user equipment to the enhanced Node B containing the desynchronization detected flag is in response to said message, upon detection of desynchronization at the user equipment. 
     
     
         18 . The UE of  claim 17 , wherein the recovering further comprises the processor being configured to send a reply to the continuous communication command from the UE to the network.