Access control in new radio

Abstract

A method executed by a wireless device for network access of the wireless device to a network node is disclosed. The method includes initiating an access attempt to the network node; reading a first layer of access control information (ACI) from the network node to determine whether an access control indicator in the first layer for an access category is ON, wherein the access control indicator for the access category is associated with a characteristic/classification of the access attempt by the wireless device to the network node; in response to the access control indicator in the first layer for the access category being ON, reading a second layer of the ACI from the network node to determine whether the access attempt to the network node is allowed based on one or more specific parameters associated with the access category in the second layer of the ACI.

1 . A method for network access of a wireless device to a network node, the method comprising:
 initiating an access attempt to the network node;   reading a first layer of access control information (ACI) from the network node to determine whether an access control indicator in the first layer for an access category is ON, wherein the access control indicator for the access category is associated with a characteristic/classification of the access attempt by the wireless device to the network node;   in response to the access control indicator in the first layer for the access category being ON, reading a second layer of the ACI from the network node to determine whether the access attempt to the network node is allowed based on one or more specific parameters associated with the access category in the second layer of the ACI.   
     
     
         2 . The method of  claim 1 , further comprising receiving an access attempt configuration (AAC) from the network node, the AAC including at least one value tag corresponding to the access category. 
     
     
         3 . The method of  claim 2 , further comprising performing a value tag check to determine whether there is an update associated with the access category. 
     
     
         4 . The method of  claim 3 , wherein, when the at least one value tag has not been updated, using the AAC to determine whether the access attempt to the network node is allowed. 
     
     
         5 . The method of  claim 3 , further comprising, when the at least one value tag has been updated, using the second layer of the ACI to determine whether the access attempt to the network node is allowed based on the one or more specific parameters associated with the access category in the second layer of the ACI. 
     
     
         6 . The method of  claim 2 , wherein the AAC is configured by the network node, and includes information of at least one of the wireless device's access class and the ACI's default and current settings. 
     
     
         7 . The method of  claim 6 , wherein the wireless device's access class is dynamically assigned by the network node based on at least one of the wireless device's ID, quality of service (QoS) requirement and data size. 
     
     
         8 . The method of  claim 1 , further comprising:
 in response to the access control indicator in the first layer for the access category being OFF, performing an access procedure to gain access to the network node without reading the second layer of the ACI.   
     
     
         9 . The method of  claim 1 , wherein the first layer of the ACI is categorized based on a radio resource control (RRC) state of the wireless device, and includes access control indications and common parameters. 
     
     
         10 . The method of  claim 9 , wherein the wireless device makes the access attempt in one of RRC_Inactive state, RRC_Connected state, and RRC_Idle state. 
     
     
         11 . The method of  claim 1 , wherein the first layer of ACI is broadcasted by the network node through minimum system information. 
     
     
         12 . The method of  claim 1 , further comprising:
 in response to the access control indicator in the first layer for the access category being ON, requesting the second layer of the ACI by the wireless device from the network node when the at least one value tag has been updated;   sending, by the network node, the second layer of the ACI to the wireless device in response to the request through other system information.   
     
     
         13 . The method of  claim 1 , wherein the access category is associated with at least one of random access procedure, RAN-based notification area (RNA), RRC state transition, applications, network slice, RAN slice, quality of service (QoS) requirement and data size. 
     
     
         14 . The method of  claim 1 , wherein the access category is RNA update such that the RNA update is controlled by the ACI. 
     
     
         15 . A wireless device for network access of the wireless device to a network node, the wireless device comprising:
 one or more processors;   a non-transitory machine-readable memory storing a program, the program executable by at least one of the one or more processors, the program comprising sets of instructions for:
 initiating an access attempt to the network node; 
 reading a first layer of access control information (ACI) from the network node to determine whether an access control indicator in the first layer for an access category is ON, wherein the access control indicator for the access category is associated with a characteristic/classification of the access attempt by the wireless device to the network node; 
 in response to the access control indicator in the first layer for the access category being ON, reading a second layer of the ACI from the network node to determine whether the access attempt to the network node is allowed based on one or more specific parameters associated with the access category in the second layer of the ACI. 
   
     
     
         16 . The wireless device of  claim 15 , wherein the program further comprises the sets of instructions for:
 receiving an access attempt configuration (AAC) from the network node, the AAC including at least one value tag, the at least one value tag corresponding to the access category.   
     
     
         17 . The wireless device of  claim 16 , wherein the program further comprises the sets of instructions for:
 performing a value tag check to determine whether there is an update associated with the access category.   
     
     
         18 . The wireless device of  claim 17 , wherein, when the at least one value tag has not been updated, using the AAC to determine whether the access attempt to the network node is allowed. 
     
     
         19 . The wireless device of  claim 17 , wherein the program further comprises the sets of instructions for:
 when the at least one value tag has been updated, using the second layer of the ACI to determine whether the access attempt to the network node is allowed based on the one or more specific parameters associated with the access category in the second layer of the ACI.   
     
     
         20 . The wireless device of  claim 16 , wherein the AAC is configured by the network node, and includes information of at least one of the wireless device's access class and the ACI's default and current settings. 
     
     
         21 . The wireless device of  claim 20 , wherein the wireless device's access class is dynamically assigned by the network node based on at least one of the wireless device's ID, quality of service (QoS) requirement and data size. 
     
     
         22 . The wireless device of  claim 15 , wherein the program further comprises the sets of instructions for:
 in response to the access control indicator in the first layer for the access category being OFF, performing an access procedure to gain access to the network node without reading the second layer of the ACI.   
     
     
         23 . The wireless device of  claim 15 , wherein the first layer of the ACI is categorized based on a radio resource control (RRC) state of the wireless device, and includes access control indications and common parameters. 
     
     
         24 . The wireless device of  claim 23 , wherein the wireless device makes the access attempt in one of RRC_Inactive state, RRC_Connected state, and RRC_Idle state. 
     
     
         25 . The wireless device of  claim 15 , wherein the program further comprises the sets of instructions for:
 in response to the access control indicator in the first layer for the access category being ON, requesting the second layer of the ACI by the wireless device from the network node when the at least one value tag has been updated.   
     
     
         26 . A network node for network access of a wireless device to the network node, the network node comprising:
 one or more processors;   a non-transitory machine-readable memory storing a program, the program executable by at least one of the one or more processors, the program comprising sets of instructions for:
 providing a first layer of access control information (ACI) to the wireless device, the first layer of the ACI having one or more access control indicators corresponding to one or more access categories; 
 providing a second layer of the ACI to the wireless device upon request; 
 wherein the wireless device requests for the second layer of the ACI when at least one of the one or more access control indicators in the first layer of the ACI associated with a characteristic/classification of an access attempt by the wireless device to the network node is ON. 
   
     
     
         27 . The network node of  claim 26 , wherein the program further comprises the sets of instructions for:
 providing an access attempt configuration (AAC) to the wireless device, the AAC including at least one value tag corresponding to the access category.   
     
     
         28 . The network node of  claim 26 , wherein the network node dynamically assigns the wireless device's access class based on at least one of the wireless device's ID, quality of service (QoS) requirement and data size. 
     
     
         29 . The network node of  claim 26 , wherein the access category is associated with at least one of random access procedure, RAN-based notification area (RNA), RRC state transition, applications, network slice, RAN slice, quality of service (QoS) requirement and data size.