Method and apparatus for random access configuration in a wireless communication system
AssigneeASUSTeK COMPUTER INC.
InventorsMeng-Hui Ou, Richard Lee-Chee Kuo, Tun-Huai Shih
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Abstract
A method and apparatus are disclosed from the perspective of a User Equipment (UE), wherein the UE is configured with multiple Bandwidth Parts (BWPs). In one embodiment, the method includes the UE receiving information from a network node to associate a RACH (Random Access Channel) configuration with a BWP among the multiple BWPs. The method further includes that the UE performing a RACH transmission in the BWP using the RACH configuration associated with the BWP.
Claims24
A method for a User Equipment (UE), wherein the UE is configured with multiple Bandwidth Parts (BWPs) in one component carrier, comprising:
- receiving information from a network node to associate a first RACH (Random Access Channel) configuration with a first BWP for at least one of the multiple BWPs of the one component carrier;
- determining whether there is a second RACH configuration associated with a currently active BWP after receiving the information;
- and
- selecting a RACH resource to perform a RACH transmission based upon whether a second RACH configuration is associated with the currently active BWP.
A method for a network node, comprising:
- transmitting information to a User Equipment (UE) to associate a first Random Access Channel (RACH) configuration with a first Bandwidth Part (BWP) for at least one of multiple BWPs in one component carrier;
- receiving a RACH transmission in a currently active BWP from the UE according to a second RACH configuration if the second RACH configuration is associated with the currently active BWP;
- and
- receiving a RACH transmission in a second BWP which is not the currently active BWP if no RACH configuration is associated with the currently active BWP.
A User Equipment (UE), wherein the UE is configured with multiple Bandwidth Parts (BWPs) in one component carrier, comprising:
- a control circuit;
- a processor installed in the control circuit;
- and
- a memory installed in the control circuit and operatively coupled to the processor;
- wherein the processor is configured to execute a program code stored in the memory to:
- receive information from a network node to associate a first RACH (Random Access Channel) configuration with a first BWP for at least one of the multiple BWPs of the one component carrier;
- determine whether there is a second RACH configuration associated with a currently active BWP after receiving the information;
- and
- select a RACH resource to perform a RACH transmission based upon whether a second RACH configuration is associated with the currently active BWP.
A network node, comprising:
- a control circuit;
- a processor installed in the control circuit;
- and
- a memory installed in the control circuit and operatively coupled to the processor;
- wherein the processor is configured to execute a program code stored in the memory to:
- transmit information to a User Equipment (UE) to associate a first Random Access Channel (RACH) configuration with a first Bandwidth Part (BWP) for at least one of multiple BWPs in one component carrier;
- receive a RACH transmission in a currently active BWP from the UE according to a second RACH configuration if the second RACH configuration is associated with the currently active BWP;
- and
- receive a RACH transmission in a second BWP which is not the currently active BWP if no RACH configuration is associated with the currently active BWP.
Dependencies are inferred from the claim text.