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US 12,726,554 B2Granted
Control of resource utilization in wireless communication system
AssigneeLG Electronics Inc.
InventorSunghoon Jung
Life of this patent
Estimating the term…
Abstract
The present disclosure related to a control of resource utilization in wireless communications. According to an embodiment of the present disclosure, a network may control a validity of dedicated physical random access channel (PRACH) resource for secondary cell group (SCG) activation. Therefore, the network can efficiently utilize the RACH resources configured to a UE by opportunistically or exclusively reusing the resources for other UEs.
Claims15
A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving, from a network, a configuration of a first random access resource for a contention-based random access to a cell group;
- receiving, from the network, a configuration of a second random access resource for a contention-free random access to the cell group and validity information comprising a timer value related to a validity of the second random access resource;
- entering a first state for the cell group;
- starting a timer having a duration of the timer value after entering the first state for the cell group;
- selecting a random access resource for use in entering a second state for the cell group;
- and
- performing a random access procedure for the cell group based on the selected random access resource,
- wherein the first random access resource is selected while the timer is not running,
- wherein the second random access resource is selected while the timer is running,
- wherein the first state is a state in which the UE monitors a first set of resources for a control channel on the cell group or does not monitor a control channel on the cell group, and
- wherein the second state is a state in which the UE monitors a second set of resources for a control channel on the cell group.
8 more elements
A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
- at least one transceiver;
- at least processor;
- and
- at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
- receiving, from a network, a configuration of a first random access resource for a contention-based random access to a cell group;
- receiving, from the network, a configuration of a second random access resource for a contention-free random access to the cell group and validity information comprising a timer value related to a validity of the second random access resource;
- entering a first state for the cell group;
- starting a timer having a duration of the timer value after entering the first state for the cell group;
- selecting a random access resource for use in entering a second state for the cell group;
- and
- performing a random access procedure for the cell group based on the selected random access resource,
- wherein the first random access resource is selected while the timer is not running,
- wherein the second random access resource is selected while the timer is running,
- wherein the first state is a state in which the UE monitors a first set of resources for a control channel on the cell group or does not monitor a control channel on the cell group, and
- wherein the second state is a state in which the UE monitors a second set of resources for a control channel on the cell group.
12 more elements
A network node related to a cell group configured to operate in a wireless communication system, the network node comprising:
- at least one transceiver;
- at least processor;
- and
- at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
- transmitting a configuration of a first random access resource for a contention-based random access to the cell group;
- transmitting a configuration of a second random access resource for a contention-free random access to the cell group and validity information comprising a timer value related to a validity of the second random access resource, wherein a timer having a duration of the timer value is started after entering a first state for the cell group;
- performing a random access procedure for the cell group based on a random access resource selected among the first random access resource and the second random access resource;
- and
- entering a second state for the cell group upon successfully completing the random access procedure for the cell group,
- wherein the first random access resource is selected while the timer is not running,
- wherein the second random access resource is selected while the timer is running,
- wherein the first state is a state in which a user equipment (UE) monitors a first set of resources for a control channel on the cell group or does not monitor a control channel on the cell group, and
- wherein the second state is a state in which the UE monitors a second set of resources for a control channel on the cell group.
10 more elements
Dependencies are inferred from the claim text.