Abstract
A method for receiving a physical downlink control channel (PDCCH) at a downlink subframe through a user equipment (UE) in a wireless communication system comprises the step of detecting the PDCCH by performing blind decoding for a search space including a plurality of PDCCH candidates included in the downlink subframe wherein the blind decoding is performed in accordance with order of priority given to each of a plurality of sub-search spaces constituting the search space.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| 5G | 31/01/2019 | ISLD-201901-019 | LG |
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Specification Information
Specification Information
Technologies
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| EP2732593A2 | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| EP2732593A4 | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| EP2732593B1 | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| KR20140037189A | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| US2014133427A1 | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| WO2013009089A2 | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| WO2013009089A3 | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| CN103650447A | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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| CN103650447B | 5G | 31/01/2019 | ISLD-201901-019 | LG |
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Technologies
Resource configuration Search Space
Product
User Equipment (UE/Terminal)Base Station (eNB/gNB)Access point
Use Cases
Wireless communication
Services
Transmitting/receiving of control channel/control information
Claim
1. A method for receiving an enhanced physical downlink control channel (E-PDCCH) in a data region of a downlink subframe by a user equipment (UE) in a wireless communication system, the method comprising the step of:
detecting the E-PDCCH by performing blind decoding of a plurality of E-PDCCH candidates included in a search space for the E-PDCCH,
wherein the blind decoding is performed in accordance with an order of priority given to each of a plurality of sub-search spaces constituting the search space, and
wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation order of the PDSCH, and the number of resource blocks allocated to the PDSCH.
2. The method according to claim 1, further comprising the step of starting demodulation for a physical downlink shared channel (PDSCH) designated by the E-PDCCH, if the result of the blinding decoding is successful.
3. The method according to claim 1, further comprising the step of performing blind decoding for the sub-search space with low priority, if the result of the blind decoding for the sub-search space with high priority is not successful.
4. The method according to claim 1, wherein the E-PDCCH corresponding to the PDSCH with higher or larger transmission data rate, transmission modulation order, payload size or number of resource blocks is allocated to a sub-search space having a higher order of priority.
5. A user equipment configured to receive an enhanced physical downlink control channel (E-PDCCH) in a data region of a downlink subframe in a wireless communication system, the user equipment comprising:
a radio frequency (RF) unit; and
a processor,
wherein the processor is configured to detect the E-PDCCH by performing blind decoding of a plurality of E-PDCCH candidates included in a search space for the E-PDCCH, and the blind decoding is performed in accordance with an order of priority given to each of a plurality of sub-search spaces constituting the search space, and
wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation scheme of the PDSCH, and the number of resource blocks allocated to the PDSCH.
6. The user equipment according to claim 5, wherein the processor is configured to start demodulation for a physical downlink shared channel (PDSCH) designated by the E-PDCCH, if the result of the blinding decoding is successful.
7. The user equipment according to claim 5, wherein the processor is configured to perform blind decoding for the sub-search space with low priority, if the result of the blind decoding for the sub-search space with high priority is not successful.
8. The user equipment according to claim 5, wherein the E-PDCCH corresponding to the PDSCH with higher or larger transmission data rate, transmission modulation order, payload size or number of resource blocks is allocated to a sub-search space having a higher order of priority.
9. A method for transmitting an enhanced physical downlink control channel (E-PDCCH) in a data region of a downlink subframe from a base station to a user equipment (UE) in a wireless communication system, the method comprising the steps of:
dividing a search space for the E-PDCCH including a plurality of E-PDCCH candidates into a plurality of sub-search spaces;
giving an order of priority to each of the plurality of sub-search spaces; and
transmitting the E-PDCCH to the user equipment through the sub-search spaces on the basis of the given order of priority,
wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation scheme of the PDSCH, and the number of resource blocks allocated to the PDSCH.
10. The method according to claim 9, wherein the E-PDCCH corresponding to the PDSCH with higher or larger transmission data rate, transmission modulation order, payload size or number of resource blocks is allocated to a sub-search space having a higher order of priority.
11. A base station configured to transmit an enhanced physical downlink control channel (E-PDCCH) to a user equipment in a data region of downlink subframe in a wireless communication system, the base station comprising:
a processor,
wherein the processor is configured to
divide a search space for the E-PDCCH including a plurality of E-PDCCH candidates included in the downlink subframe into a plurality of sub-search spaces,
give an order of priority to each of the plurality of sub-search spaces, and
transmit the E-PDCCH to the user equipment through the sub-search spaces on the basis of the given order of priority, and
wherein the order of priority is determined based on downlink transmission information including at least one of a transmission data rate of a physical downlink shared channel (PDSCH) indicated by the E-PDCCH, a payload size of the PDSCH, a transmission modulation scheme of the PDSCH, and the number of resource blocks allocated to the PDSCH.
12. The base station according to claim 11, wherein the E-PDCCH corresponding to the PDSCH with higher or larger transmission data rate, transmission modulation order, payload size or number of resource blocks is allocated to a sub-search space having a higher order of priority.
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