Method and apparatus for transmitting downlink control information in wireless communication system
AssigneeLG Electronics Inc.
InventorsYunjung Yi, Daesung Hwang
Life of this patent
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Abstract
A method and apparatus for monitoring downlink control information (DCI) in a wireless communication system, especially in a new radio access technology (NR) is provided. A user equipment (UE) monitors first DCI having a first size in a UE specific search space (USS). The first size is determined based on an active bandwidth part (BWP). The UE further monitors second DCI having a second size in a common search space (CSS). The second size is determined based on a default BWP.
Claims12
A method performed by a Base Station (BS) adapted to operate in a wireless communication system, the method comprising:
- transmitting, by the BS to a User Equipment (UE), Downlink Control Information (DCI) in either a UE specific Search Space (USS) or a Common Search Space (CSS), wherein the DCI includes information related to a frequency resource;
- and
- transmitting, by the BS to the UE, downlink data scheduled by the DCI based on the frequency resource,
- wherein, based on the DCI being transmitted in the USS:
- (i) the downlink data includes data specified to the UE, and (ii) a size of the information related to the frequency resource is based on an activated Bandwidth Part (BWP), and
- wherein, based on the DCI being transmitted in the CSS:
- the downlink data includes at least one of Remaining Minimum System Information (RMSI), a Random Access Response (RAR), and/or a paging.
A Base Station (BS) adapted to operate in a wireless communication system, the BS comprising:
- at least one transceiver;
- at least one processor;
- and
- at least one 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, to a User Equipment (UE) via the at least one transceiver, Downlink Control Information (DCI) in either a UE specific Search Space (USS) or a Common Search Space (CSS), wherein the DCI includes information related to a frequency resource;
- and
- transmitting, to the UE via the at least one transceiver, downlink data scheduled by the DCI based on the frequency resource,
- wherein, based on the DCI being transmitted in the USS:
- (i) the downlink data includes data specified to the UE, and (ii) a size of the information related to the frequency resource is based on an activated Bandwidth Part (BWP), and
- wherein, based on the DCI being transmitted in the CSS:
- the downlink data includes at least one of Remaining Minimum System Information (RMSI), a Random Access Response (RAR), and/or a paging.
A non-transitory computer readable medium (CRM) storing instructions that, based on being executed by at least one processor, perform operations comprising:
- transmitting Downlink Control Information (DCI) in either a User Equipment (UE) specific Search Space (US S) or a Common Search Space (CSS), wherein the DCI includes information related to a frequency resource;
- and
- transmitting downlink data scheduled by the DCI based on the frequency resource,
- wherein, based on the DCI being transmitted in the USS:
- (i) the downlink data includes data specified to a UE, and (ii) a size of the information related to the frequency resource is based on an activated Bandwidth Part (BWP), and
- wherein, based on the DCI being transmitted in the CSS:
- the downlink data includes at least one of Remaining Minimum System Information (RMSI), a Random Access Response (RAR), and/or a paging.
Dependencies are inferred from the claim text.