Method and apparatus for transmitting downlink control information for resource allocation in a wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsCheng SHAN, Jin Kyu Han, Youn Sun Kim
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Abstract
A method and apparatus for transmitting and receiving Downlink Control Information (DCI) in a wireless communication system. A method for transmitting DCI by a base station includes generating DCI including at least one of a data resource allocation indicator, a data format indicator for at least one Transport Block (TB), and a DeModulation Reference Signal (DMRS) resource allocation indicator corresponding to the at least one TB; and sending the DCI to a terminal. The DMRS resource allocation indicator includes a rank pattern for the at least one TB, an allocated scrambling code type, and DMRS port information.
Claims20
A method for transmitting Downlink Control Information (DCI) by a base station in a wireless communication system, the method comprising the steps of:
- generating DCI including at least one of a data resource allocation indicator, a data format indicator for at least one Transport Block (TB), and a DeModulation Reference Signal (DMRS) resource allocation indicator corresponding to the at least one TB;
- and
- sending the DCI to a terminal,
- wherein the DMRS resource allocation indicator includes a rank pattern for the at least one TB, an allocated scrambling code type, and DMRS port information.
The method of claim 2, wherein the DMRS resource allocation indicator is indexed according to:
- One TB
- Both TB
- Enabled
- Enabled
- Index
- Message
- Index
- Message
- 0
- Rank 2 pattern,
- 0
- Rank 2 pattern,
- DMRS port 0
- DMRS port 0, 1
- with SC0
- with SC0
- allocated
- allocated
- 1
- Rank 2 pattern,
- 1
- Rank 4 pattern,
- DMRS port 1
- DMRS port 0, 1,
- with SC0
- 2 with SC0
- allocated
- allocated
- 2
- Rank 2 pattern,
- 2
- Rank 2 pattern,
- DMRS port 0
- DMRS port 0, 1
- with SC1
- with SC1
- allocated
- allocated
- 3
- Rank 2 pattern,
- 3
- Rank 4 pattern,
- DMRS port 1
- DMRS port 0, 1,
- with SC1
- 2, 3 with SC0
- allocated
- allocated
- 4
- Rank 2 pattern,
- 4
- Rank 8 pattern,
- DMRS port 0, 1
- DMRS port 0, 1,
- with SC0
- 2, 3, 4 with SC0
- allocated
- allocated
- 5
- Rank 2 pattern,
- 5
- Rank 8 pattern,
- DMRS port 0, 1
- DMRS port 0, 1,
- with SC1
- 2, 3, 4, 5 with
- allocated
- SC0 allocated
- 6
- Rank 4 pattern,
- 6
- Rank 8 pattern,
- DMRS port 0, 1,
- DMRS port 0, 1,
- 2 with SC0
- 2, 3, 4, 5, 6 with
- allocated
- SC0 allocated
- 7
- Rank 4 pattern,
- 7
- Rank 8 pattern,
- DMRS port 0, 1,
- DMRS port 0, 1,
- 2, 3 with SC0
- 2, 3, 4, 5, 6, 7
- allocated
- with SC0
- allocated
A method for receiving Downlink Control Information (DCI) in a terminal in a wireless communication system, the method comprising:
- receiving DCI transmitted from a base station, the DCI including at least one of a data resource allocation indicator, a data format indicator for at least one Transport Block (TB), and a Demodulation Reference Signal (DMRS) resource allocation indicator corresponding to the at least one TB;
- and
- processing the DCI,
- wherein the DMRS resource allocation indicator includes a rank pattern for the at least one TB, an allocated scrambling code type, and DMRS port information.
A base station for transmitting Downlink Control Information (DCI) in a wireless communication system, the base station comprising:
- a control unit that generates DCI including at least one of a data resource allocation indicator, a data format indicator for at least one Transport Block (TB), and a Demodulation Reference Signal (DMRS) resource allocation indicator corresponding to the at least one TB;
- and
- a radio frequency unit that sends the DCI to a terminal,
- wherein the DMRS resource allocation indicator includes a rank pattern for the at least one TB, an allocated scrambling code type, and DMRS port information.
A terminal for receiving and processing Downlink Control Information (DCI) in a wireless communication system, the terminal comprising:
- a radio frequency unit that receives DCI transmitted from a base station, the DCI including at least one of a data resource allocation indicator, a data format indicator for at least one Transport Block (TB), and a Demodulation Reference Signal (DMRS) resource allocation indicator corresponding to the at least one TB;
- and
- a control unit that processes the DCI,
- wherein the DMRS resource allocation indicator includes a rank pattern for the at least one TB, an allocated scrambling code type, and DMRS port information.
Dependencies are inferred from the claim text.