Scheduling in communication systems with multiple service types
AssigneeSamsung Electronics Co., Ltd.
InventorAris Papasakellariou
Life of this patent
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Abstract
A method for a user equipment (UE) to receive physical downlink control channels (PDCCHs) with a first sub-carrier spacing (SCS) includes receiving a bitmap indicating symbols of a slot that are first symbols of control resource sets (CORESETs) for PDCCH receptions, determining, based on the bitmap, a first number of symbols that is a smallest number of symbols in between a first symbol of PDCCH receptions in first CORESETs and a first symbol of PDCCH receptions in second CORESETs, determining, based on the first number of symbols and the SCS, a first maximum number of non-overlapping control channel elements (CCEs), and receiving the PDCCHs with the first SCS according to the first maximum number of non-overlapping CCEs.
Claims20
A method for a user equipment (UE) to receive physical downlink control channels (PDCCHs) with a first sub-carrier spacing (SCS), the method comprising:
- receiving a bitmap indicating symbols of a slot that are first symbols of control resource sets (CORESETs) for PDCCH receptions;
- determining, based on the bitmap, a first number of symbols that is a smallest number of symbols in between:
- a first symbol of PDCCH receptions in first CORESETs, wherein the first CORESETs are within a second number of symbols, and
- a first symbol of PDCCH receptions in second CORESETs, wherein:
- the second CORESETs are within the second number of symbols, and
- the first number of symbols is larger than or equal to the second number of symbols;
- determining, based on the first number of symbols and the first SCS, a first maximum number of non-overlapping control channel elements (CCEs) to perform channel estimation for PDCCH receptions in CORESETs within the second number of symbols, wherein the CCEs are non-overlapping when the CCEs:
- are in CORESETs with different indexes, or
- are in CORESETs located in different symbols;
- and
- receiving the PDCCHs with the first SCS according to the first maximum number of non-overlapping CCEs.
A user equipment (UE) comprising:
- a receiver configured to receive a bitmap indicating symbols of a slot that are first symbols of control resource sets (CORESETs) for receptions of physical downlink control channels (PDCCHs) with a first sub-carrier spacing (SCS);
- and
- a processor configured to determine:
- based on the bitmap, a first number of symbols that is a smallest number of symbols in between:
- a first symbol of PDCCH receptions in first CORESETs, wherein the first CORESETs are within a second number of symbols, and
- a first symbol of PDCCH receptions in second CORESETs that are within the second number of symbols, wherein:
- the second CORESETs are within the second number of symbols, and
- the first number of symbols is larger than or equal to the second number of symbols;
- and
- based on the first number of symbols and the first SCS, a first maximum number of non-overlapping control channel elements (CCEs) for PDCCH receptions in CORESETs within the second number of symbols, wherein the CCEs are non-overlapping when the CCEs:
- are in CORESETs with different indexes, or
- are in CORESETs located in different symbols,
- wherein the receiver is further configured to receive the PDCCHs with the first SCS according to the first maximum number of non-overlapping CCEs.
A base station comprising:
- a transmitter configured to transmit a bitmap indicating symbols of a slot that are first symbols of control resource sets (CORESETs) for transmissions of physical downlink control channels (PDCCHs) with a first sub-carrier spacing (SCS);
- and
- a processor configured to determine:
- based on the bitmap, a first number of symbols that is a smallest number of symbols in between:
- a first symbol of PDCCH transmissions in first CORESETs, wherein the first CORESETs are within a second number of symbols, and
- a first symbol of PDCCH transmissions in second CORESETs that are within the second number of symbols, wherein:
- the second CORESETs are within the second number of symbols, and
- the first number of symbols is larger than or equal to the second number of symbols;
- and
- based on the first number of symbols and the first SCS, a first maximum number of non-overlapping control channel elements (CCEs) for PDCCH transmissions in CORESETs within the second number of symbols, wherein the CCEs are non-overlapping when the CCEs:
- are in CORESETs with different indexes, or
- are in CORESETs located in different symbols,
- wherein the transmitter is further configured to transmit the PDCCHs with the first SCS.
Dependencies are inferred from the claim text.