System information provisioning and light weight connection signaling
System information can include a basic set of system information and additional system information. A UE can receive the basic set of system information and then later request or receive the additional system information. Messages can use tags which can be used to look up locally stored system information. If a tag does not correspond to any locally stored system information, the system information and an associated tag can then be requested. Messages can be indicative of a cluster identity associated with cells. When the UE goes into a new cell, the cluster identity can be checked to see if system information from a prior call can be reused.
1. An apparatus comprising a processor, a memory, and communication circuitry, the apparatus being connected to a network via its communication circuitry, the apparatus further comprising computer-executable instructions stored in the memory of the apparatus which, when executed by the processor of the apparatus, cause the apparatus to perform operations comprising:
receiving, on a broadcast channel of a cell of the network, a first set of system information broadcast periodically in the network, the first set of system information comprising first information for initial access to the network, second information indicating at least one other set of system information available for request by the apparatus, and third information concerning scheduling of the at least one other set of system information available for request by the apparatus;
storing the received first set of system information in the memory;
sending, to the network using a physical channel resource reserved by the cell, based on the second information and the third information, a message requesting the at least one other set of system information, wherein the message contains a list of the at least one other set of system information requested by the apparatus; and
receiving, from the network, the at least one other set of system information.
2. The apparatus of claim 1 , wherein the apparatus comprises user equipment.
3. The apparatus of claim 1 , wherein the reserved physical channel resource comprises one of a physical random access channel resource, a physical uplink shared channel resource, or a physical uplink control channel resource.
4. The apparatus of claim 1 , wherein the apparatus uses at least some of the first set and the at least one other set of system information in another cell.
5. The apparatus of claim 1 , wherein the reserved physical channel resource is associated with one of a plurality of different network use cases.
6. The apparatus of claim 1 , wherein the first set of system information comprises information to support cell selection by the apparatus.
7. The apparatus of claim 1 , wherein the apparatus receives the at least one other set of system information in a state of RRC_IDLE or RRC_INACTIVE.
8. The apparatus of claim 1 , wherein the information concerning availability of the at least one other set of system information indicates that at least a second other set of system information is available from the cell, and wherein the instructions further cause the apparatus to receive the at least second other set of system information from the cell.
9. An apparatus comprising a processor, a memory, and communication circuitry, the apparatus being connected to a network via its communication circuitry, the apparatus further comprising computer-executable instructions stored in the memory of the apparatus which, when executed by the processor of the apparatus, cause the apparatus to perform operations comprising:
transmitting, to a user equipment, on a broadcast channel of a cell of the network, a first set of system information, the first set of system information comprising first information for initial access to the network, second information indicating at least one other set of system information available for request by the user equipment, and third information concerning scheduling of the at least one other set of system information available for request by the user equipment, wherein the first set of system information is broadcast in the network periodically,
receiving, from the user equipment using a physical channel resource reserved by the cell, based on the second information and the third information, a message requesting the at least one other set of system information, wherein the message contains a list of the at least one other set of system information requested by the apparatus; and
transmitting, to the user equipment, the requested at least one other set of system information.
10. The apparatus of claim 9 , wherein the reserved physical channel resource comprises one of a physical random access channel resource, a physical uplink shared channel resource, or a physical uplink control channel resource.
11. The apparatus of claim 9 , wherein the reserved physical channel resource is associated with one of a plurality of different network use cases.
12. The apparatus of claim 9 , wherein the first set of system information comprises information to support cell selection by the user equipment.
13. The apparatus of claim 9 , wherein transmitting the first set of system information comprises broadcasting the first set of system information periodically.
14. The apparatus of claim 9 , wherein transmitting the requested at least one other set of system information comprises transmitting the requested at least one other set of system information via broadcast or dedicated signaling.
15. A method for wireless communication in a network, the method comprising:
transmitting, to a user equipment, on a broadcast channel of a cell of the network, a first set of system information, the first set of system information comprising first information for initial access to the network, second information indicating at least one other set of system information available for request by the user equipment, and third information concerning scheduling of the at least one other set of system information available for request by the user equipment, wherein the first set of system information is broadcast in the network periodically;
receiving, from the user equipment using a physical channel resource reserved by the cell, based on the second information and the third information, a message requesting the at least one other set of system information, wherein the message contains a list of the at least one other set of system information requested by the apparatus; and
transmitting, to the user equipment, the requested at least one other set of system information.