Monitoring control channels in control resource sets for new radio
Technology for an apparatus of a user equipment (UE), operable to perform a random-access procedure using a UE-specific control resource set (CORESET) is disclosed. The UE can decode a 5 message, received from the next generation node B (gNB), to perform a contention free random-access (RA) procedure. The UE can encode a random-access channel (RACH) preamble for transmission to the gNB using one or more UE-specific CORESET. The UE can decode a random-access response (RAR) received from the gNB in response to the RACH preamble transmission using the one or more UE10 specific CORESET.
1. An apparatus of a user equipment (UE), comprising:
one or more processors configured to:
decode a message, received from a base station, comprising configuration information enabling the UE to perform a contention free random-access (RA) procedure;
encode a random-access channel (RACH) preamble for transmission to the base station;
decode a random-access response (RAR) received from the base station on a first UE-specific control resource set (CORESET) in response to the RACH preamble transmission;
decode a radio resource control (RRC) reconfiguration message, received from the base station, identifying a second UE-specific CORESET for the UE;
monitor a common CORESET at the UE for a predetermined time period after the RRC reconfiguration message is received; and
monitor the second UE-specific CORESET after the pre-determined time period; and
a memory interface configured to store in a memory the RAR.
2. The apparatus of the UE of claim 1 , wherein the one or more processors are further configured to encode the RACH preamble using a random access radio network temporary identifier (RA-RNTI) for transmission to the base station.
3. The apparatus of the UE of claim 1 , wherein the one or more processors are further configured to decode the RAR using a random access radio network temporary identifier (RA-RNTI).
4. The apparatus of the UE of claim 1 , wherein the one or more processors are further configured to encode the RACH preamble using a random access radio network temporary identifier (RA-RNTI), wherein the first UE-specific CORESET is comprised of a predetermined set of resource element groups (REGs).
5. The apparatus of the UE of claim 1 , further comprising a transceiver configured to:
receive the random-access response (RAR) from the base station in response to the RACH preamble transmission.
6. The apparatus of the UE of claim 1 , wherein the UE includes an antenna, a touch sensitive display screen, a speaker, a microphone, a graphics processor, an application processor, an internal memory, a non-volatile memory port, or combinations thereof.
7. At least one non-transitory machine readable storage medium having instructions embodied thereon that, when executed by one or more processors of a UE, cause the UE to:
decode a message, received from a base station, comprising configuration information enabling the UE to perform a contention free random-access (RA) procedure;
encode a random-access channel (RACH) preamble for transmission to the base station;
decode a random-access response (RAR) received from the base station on a first UE-specific control resource set (CORESET) in response to the RACH preamble transmission;
decode a radio resource control (RRC) reconfiguration message, received from the base station, identifying a second UE-specific CORESET for the UE;
monitor a common CORESET at the UE for a predetermined time period after the RRC reconfiguration message is received; and
monitor the second UE-specific CORESET after the pre-determined time period.
8. The at least one non-transitory machine readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the UE to:
encode the RACH preamble using a random access radio network temporary identifier (RA-RNTI) for transmission to the base station.
9. The at least one non-transitory machine readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the UE to:
decode the RAR using a random access radio network temporary identifier (RA-RNTI).
10. The at least one non-transitory machine readable storage medium of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the UE to:
encode the RACH preamble using a random access radio network temporary identifier (RA-RNTI), wherein the first UE-specific CORESET is comprised of a predetermined set of resource element groups (REGs).
11. A method of a user equipment (UE), comprising:
decoding a message, received from a base station, comprising configuration information enabling the UE to perform a contention free random-access (RA) procedure;
encoding a random-access channel (RACH) preamble for transmission to the base station;
decoding a random-access response (RAR) received from the base station on a first UE-specific CORESET in response to the RACH preamble transmission;
decoding a radio resource control (RRC) reconfiguration message, received from the base station, identifying a second UE-specific CORESET for the UE;
monitoring a common CORESET at the UE for a predetermined time period after the RRC reconfiguration message is received; and
monitoring the second UE-specific CORESET after the pre-determined time period.
12. The method of claim 11 , further comprising encoding the RACH preamble using a random access radio network temporary identifier (RA-RNTI) for transmission to the base station.
13. The method of claim 11 , further comprising decoding the RAR using a random access radio network temporary identifier (RA-RNTI).
14. The method of claim 11 , further comprising encoding the RACH preamble using a random access radio network temporary identifier (RA-RNTI), wherein the first UE-specific CORESET is comprised of a predetermined set of resource element groups (REGs).