Reduced signaling overhead during radio resource control (rrc) state transitions

Abstract

A method and system for reducing signaling overhead during radio resource control (RRC) state transitions is disclosed. The method can include a first wireless device saving a selected RRC parameter in a memory. The selected RRC parameter can be identified based on a low frequency in which the selected RRC parameter changes. The first wireless device can set an RRC resource parameter retention timer to count a retention time duration for using the selected RRC parameter saved in the memory. The first wireless device can receive a reduced RRC connection message from a second wireless device. The reduced RRC connection message excludes the selected RRC parameter. The first wireless device can use the selected RRC parameter saved in the memory for the RRC parameter excluded in the reduced RRC connection message when the RRC resource parameter retention timer is not expired. The selected RRC parameter can be used in a RRC connection protocol.

1 - 21 . (canceled) 
     
     
         22 . At least one non-transitory computer readable medium having instructions stored thereon for reducing signaling overhead during radio resource control (RRC) state transitions, the instructions when executed on a machine to cause the machine to:
 save a selected RRC parameter in a memory on a first wireless device, wherein the selected RRC parameter is identified based on a low frequency in which the selected RRC parameter changes;   set an RRC resource parameter retention timer to count a retention time duration for using the selected RRC parameter saved in the memory; and   transmit a reduced RRC connection message from the first wireless device to a second wireless device when the RRC resource parameter retention timer is not expired, wherein the reduced RRC connection message excludes the selected RRC parameter.   
     
     
         23 . The at least one computer readable medium of  claim 22 , wherein the selected RRC parameter is obtained from a prior RRC connection message used to connect the first wireless device with the second wireless device. 
     
     
         24 . The at least one computer readable medium of  claim 23 , wherein the prior RRC connection message is generated by the first wireless device for communication with the second wireless device. 
     
     
         25 . The at least one computer readable medium of  claim 23 , wherein the prior RRC connection message is received by the first wireless device from the second wireless device. 
     
     
         26 . The at least one computer readable medium of  claim 22 , wherein an idle state occurs on the first wireless device in communication with the second wireless device between the instruction to save the selected RRC parameter in the memory and the instruction to transmit the reduced RRC connection message. 
     
     
         27 . The at least one computer readable medium of  claim 22 , with further instructions to:
 reset the RRC resource parameter retention timer after an RRC connection.   
     
     
         28 . The at least one computer readable medium of  claim 22 , with further instructions to:
 transmit the retention time duration to the second wireless device.   
     
     
         29 . The at least one computer readable medium of  claim 22 , wherein the selected RRC parameter is selected from the group consisting of a discontinuous reception (DRX) parameter, a size of a buffer status report (BSR), a frequency of the BSR, signaling radio bearer 0 (SRB0) information, SRB1 information, SRB2 information, SRB3 information, an adjusted transmit power level, and combinations thereof. 
     
     
         30 . The at least one computer readable medium of  claim 22 , wherein the reduced RRC connection message and the RRC connection message are selected from the group consisting of an RRC connection request, an RRC connection setup, an RRC connection setup complete, an RRC connection reconfig, an RRC connection reconfig complete, and combinations thereof. 
     
     
         31 . The at least one computer readable medium of  claim 22 , wherein the first wireless device is selected from the group consisting of a user equipment (UE) and a mobile station (MS), wherein the first wireless device is configured to connect to at least one of a wireless local area network (WLAN), a wireless personal area network (WPAN), and a wireless wide area network (WWAN), and wherein the first wireless device includes an antenna, a touch sensitive display screen, a speaker, a microphone, a graphics processor, an application processor, internal memory, a non-volatile memory port, or combinations thereof, and the second wireless device is selected from the group consisting of an evolved Node B (eNodeB), a base station (BS), a macro evolved Node B (macro-eNB), a low power node (LPN), a micro-eNB, a pico-eNB, a femto-eNB, a home eNB (HeNB), a base band unit (BBU), a remote radio head (RRH), a remote radio equipment (RRE), a remote radio unit (RRU), and combinations thereof. 
     
     
         32 . The at least one computer readable medium of  claim 22 , with further instructions to:
 receive a second RRC connection message from the second wireless device at the first wireless before the expiration of the RRC resource parameter retention timer, wherein the selected RRC parameter of the second RRC connection message has a different value than the selected RRC parameter saved in the memory; and   replace the selected RRC parameter saved in the memory with the selected RRC parameter of the second RRC connection message.   
     
     
         33 . The at least one computer readable medium of  claim 22 , wherein the reduced RRC connection message further excludes a plurality of selected RRC parameters, and wherein the instruction to transmit the reduced RRC connection message from the first wireless device to the second wireless device further includes an included selected RRC parameter in the reduced RRC connection message when the included selected RRC parameter changes, wherein at least one other selected RRC parameter is excluded from the reduced RRC connection message. 
     
     
         34 . At least one non-transitory computer readable medium having instructions stored thereon for reducing signaling overhead during radio resource control (RRC) state transitions, the instructions when executed on a machine to cause the machine to:
 save a selected RRC parameter in a memory on a first wireless device, wherein the selected RRC parameter is identified based on a low frequency in which the selected RRC parameter changes;   set an RRC resource parameter retention timer to count a retention time duration for using the selected RRC parameter saved in the memory; and   receive a reduced RRC connection message from a second wireless device at the first wireless device, wherein the reduced RRC connection message excludes the selected RRC parameter;   use the selected RRC parameter saved in the memory for the RRC parameter excluded in the reduced RRC connection message when the RRC resource parameter retention timer is not expired, wherein the selected RRC parameter is used in a RRC connection protocol.   
     
     
         35 . The at least one computer readable medium of  claim 34 , wherein the selected RRC parameter is obtained from a prior RRC connection message used to connect the first wireless device with the second wireless device. 
     
     
         36 . The at least one computer readable medium of  claim 35 , wherein the prior RRC connection message is generated by the first wireless device for communication with the second wireless device. 
     
     
         37 . The at least one computer readable medium of  claim 35 , wherein the prior RRC connection message is received by the first wireless device from the second wireless device. 
     
     
         38 . The at least one computer readable medium of  claim 34 , wherein an idle state occurs on the first wireless device in communication with the second wireless device between the instruction to save the selected RRC parameter in the memory and the instruction to receive the reduced RRC connection message. 
     
     
         39 . The at least one computer readable medium of  claim 34 , with further instructions to:
 reset the RRC resource parameter retention timer after a RRC connection.   
     
     
         40 . The at least one computer readable medium of  claim 34 , with further instructions to:
 receive the retention time duration from the second wireless device.   
     
     
         41 . The at least one computer readable medium of  claim 34 , wherein the selected RRC parameter is selected from the group consisting of a discontinuous reception (DRX) parameter, a size of a buffer status report (BSR), a frequency of the BSR, signaling radio bearer 0 (SRB0) information, SRB 1 information, SRB2 information, SRB3 information, an adjusted transmit power level, and combinations thereof. 
     
     
         42 . The at least one computer readable medium of  claim 34 , wherein the reduced RRC connection message and the RRC connection message are selected from the group consisting of an RRC connection request, an RRC connection setup, an RRC connection setup complete, an RRC connection reconfig, an RRC connection reconfig complete, and combinations thereof. 
     
     
         43 . The at least one computer readable medium of  claim 34 , with further instructions to:
 transmit an RRC connection failed message from the first wireless device to the second wireless device when the reduced RRC connection message is received and the RRC resource parameter retention timer is expired.   
     
     
         44 . A radio resource controller for reducing signaling overhead during radio resource control (RRC) state transitions, comprising:
 a RRC transceiver module configured to obtain a selected RRC parameter from an RRC connection message used to connect a first wireless device with a second wireless device, wherein the selected RRC parameter is identified based on a low frequency in which the selected RRC parameter changes;   a memory module configured to save the selected RRC parameter; and   a RRC resource parameter retention timer configured to count a retention time duration for using the selected RRC parameter saved in the memory,   wherein the RRC transceiver module is further configured to generate a reduced RRC connection message for communication between the first wireless device and the second wireless device when the RRC resource parameter retention timer is not expired, wherein the reduced RRC connection message excludes the selected RRC parameter.   
     
     
         45 . The radio resource controller of  claim 44 , wherein the RRC resource parameter retention timer is further configured to:
 reset the RRC resource parameter retention timer after an RRC connection.   
     
     
         46 . The radio resource controller of  claim 44 , wherein the RRC transceiver module is further configured to:
 transmit the retention time duration to the second wireless device.   
     
     
         47 . The radio resource controller of  claim 44 , wherein the selected RRC parameter is selected from the group consisting of a discontinuous reception (DRX) parameter, a size of a buffer status report (BSR), a frequency of the BSR, signaling radio bearer 0 (SRB0) information, SRB1 information, SRB2 information, SRB3 information, an adjusted transmit power level, and combinations thereof. 
     
     
         48 . The radio resource controller of  claim 44 , wherein the reduced RRC connection message and the RRC connection message are selected from the group consisting of an RRC connection request, an RRC connection setup, an RRC connection setup complete, an RRC connection reconfig, an RRC connection reconfig complete, and combinations thereof. 
     
     
         49 . A radio resource controller for reducing signaling overhead during radio resource control (RRC) state transitions, comprising:
 a RRC transceiver module configured to obtain a selected RRC parameter from an RRC connection message used to connect a first wireless device with a second wireless device, wherein the selected RRC parameter is identified based on a low frequency in which the selected RRC parameter changes;   a memory module configured to save the selected RRC parameter;   an RRC resource parameter retention timer configured to count a retention time duration for using the selected RRC parameter saved in the memory,   wherein the RRC transceiver module is further configured to receive a reduced RRC connection message from the second wireless device at the first wireless device, wherein the reduced RRC connection message excludes the selected RRC parameter; and   a RRC connection module configured to use the selected RRC parameter saved in the memory for the RRC parameter excluded in the reduced RRC connection message when the RRC resource parameter retention timer is not expired, wherein the selected RRC parameter is used in a RRC connection protocol.   
     
     
         50 . The radio resource controller of  claim 49 , wherein the RRC resource parameter retention timer is further configured to:
 reset the RRC resource parameter retention timer after an RRC connection.   
     
     
         51 . The radio resource controller of  claim 49 , wherein the selected RRC parameter is selected from the group consisting of a discontinuous reception (DRX) parameter, a size of a buffer status report (BSR), a frequency of the BSR, signaling radio bearer 0 (SRB0) information, SRB1 information, SRB2 information, SRB3 information, an adjusted transmit power level, and combinations thereof.