主页(http://www.pttcn.net):LTE基础:PDCCH盲检测与DCI和RNTI关系
UE根据在子帧中检测到的具有DCI格式1,1A,1B,1C,1D,2,2A或者UE扩展的DCI格式2B的PDCCH,使用上层定义的传输块数目限制条件来解码在同一子帧中相应的PDSCH。
UE可能设想定位参考信号不在根据用DCI格式1A或者1C的SI-RNTI或者P-RNTI做CRC扰码的PDCCH解码的PDSCH的资源块中出现。
如果UE被高层设置解码具有用SI-RNTI扰码CRC的PDCCH时,UE将根据表7.1-1中定义的任意组合来解码PDCCH和对应的PDSCH。对应于这些PDCCH的PDSCH用SI-RNTI来进行扰码初始化。
盲检测与DCI和RNTI关系如下多张表:
Table 7.1-1:PDCCH and PDSCH configured by SI-RNTI
DCI format
|
Search Space
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Transmission scheme of PDSCH corresponding to PDCCH
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DCI format 1C
|
Common
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If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used, otherwise Transmit diversity.
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DCI format 1A
|
Common
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If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used, otherwise Transmit diversity
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同样道理:
Table 7.1-2:PDCCH and PDSCH configured by P-RNTI
DCI format
|
Search Space
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Transmission scheme of PDSCH corresponding to PDCCH
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DCI format 1C
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Common
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If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity
|
DCI format 1A
|
Common
|
If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
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Table 7.1-3:PDCCH and PDSCH configured by RA-RNTI
DCI format
|
Search Space
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Transmission scheme of PDSCH corresponding to PDCCH
|
DCI format 1C
|
Common
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If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
|
DCI format 1A
|
Common
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If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
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Table 7.1-5: PDCCH and PDSCHconfigured by C-RNTI
Transmission mode
|
DCI format
|
Search Space
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Transmission scheme of PDSCH corresponding to PDCCH
|
Mode 1
|
DCI format 1A
|
Common and
UE specific by C-RNTI
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Single-antenna port, port 0 (see subclause7.1.1)
|
DCI format 1
|
UE specific by C-RNTI
|
Single-antenna port, port 0 (see subclause7.1.1)
|
Mode 2
|
DCI format 1A
|
Common and
UE specific by C-RNTI
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Transmit diversity (see subclause 7.1.2)
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DCI format 1
|
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
Mode 3
|
DCI format 1A
|
Common and
UE specific by C-RNTI
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Transmit diversity (see subclause 7.1.2)
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DCI format 2A
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UE specific by C-RNTI
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Large delay CDD (see subclause 7.1.3) orTransmit diversity (see subclause 7.1.2)
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Mode 4
|
DCI format 1A
|
Common and
UE specific by C-RNTI
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Transmit diversity (see subclause 7.1.2)
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DCI format 2
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UE specific by C-RNTI
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Closed-loop spatial multiplexing (see subclause 7.1.4)or Transmit diversity (see subclause 7.1.2)
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Mode 5
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
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DCI format 1D
|
UE specific by C-RNTI
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Multi-user MIMO (see subclause 7.1.5)
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Mode 6
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
DCI format 1B
|
UE specific by C-RNTI
|
Closed-loop spatial multiplexing (see subclause 7.1.4) using a single transmission layer
|
Mode 7
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DCI format 1A
|
Common and
UE specific by C-RNTI
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If the number of PBCH antenna ports is one,Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
|
DCI format 1
|
UE specific by C-RNTI
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Single-antenna port; port 5 (see subclause 7.1.1)
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Mode 8
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
If the number of PBCH antenna ports is one,Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
|
DCI format 2B
|
UE specific by C-RNTI
|
Dual layer transmission; port 7 and 8 (see subclause 7.1.5A) or single-antenna port; port 7 or 8 (see subclause 7.1.1)
|
Table 7.1-6: PDCCH and PDSCHconfigured by SPS C-RNTI
Transmission mode
|
DCI format
|
Search Space
|
Transmission scheme of PDSCH corresponding to PDCCH
|
Mode 1
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Single-antenna port, port 0 (see subclause 7.1.1)
|
DCI format 1
|
UE specific by C-RNTI
|
Single-antenna port, port 0 (see subclause 7.1.1)
|
Mode 2
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
DCI format 1
|
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
Mode 3
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
DCI format 2A
|
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
Mode 4
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
DCI format 2
|
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
Mode 5
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
Mode 6
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Transmit diversity (see subclause 7.1.2)
|
Mode 7
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Single-antenna port; port 5 (see subclause 7.1.1)
|
DCI format 1
|
UE specific by C-RNTI
|
Single-antenna port; port 5 (see subclause 7.1.1)
|
Mode 8
|
DCI format 1A
|
Common and
UE specific by C-RNTI
|
Single-antenna port; port 7(see subclause 7.1.1)
|
DCI format 2B
|
UE specific by C-RNTI
|
Single-antenna port; port 7 or 8 (see subclause 7.1.1)
|
Table 7.1-7: PDCCH and PDSCHconfigured by Temporary C-RNTI
DCI format
|
Search Space
|
Transmission scheme of PDSCH corresponding to PDCCH
|
DCI format 1A
|
Common and UE specific by Temporary C-RNTI
|
If the number of PBCH antenna port is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
|
DCI format 1
|
UE specific by Temporary C-RNTI
|
If the number of PBCH antenna port is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)
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