Abstract
The method of transmitting the reference signal includes receiving a synchronization signal in a subframe including contiguous first slot and second slot and receiving a reference signal in the subframe in which each of the first slot and the second slot includes a plurality of RBs and a plurality of OFDM symbols the synchronization signal includes a PSS and a SSS the PSS is received in the last OFDM symbol of the first slot the SSS is received in a previous symbol before the last OFDM symbol of the first slot a cell identifier is acquired based on the PSS and the SSS the synchronization signal is received in center 6 RBs among the plurality of RBs and the reference signal is received in at least one 01-DM symbol among the plurality of OFDM symbols in the second slot through the center 6 RBs.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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5G | 14/02/2019 | ISLD-201902-020 | LG |
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Specification Information
Specification Information
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US2016057720A1 | 5G | 14/02/2019 | ISLD-201902-020 | LG |
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US2016057716A1 | 5G | 14/02/2019 | ISLD-201902-020 | LG |
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US9414339B2 | 5G | 14/02/2019 | ISLD-201902-020 | LG |
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US2015036609A1 | 5G | 14/02/2019 | ISLD-201902-020 | LG |
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WO2013141583A1 | 5G | 14/02/2019 | ISLD-201902-020 | LG |
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WO2013141584A1 | 5G | 14/02/2019 | ISLD-201902-020 | LG |
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Technologies
Synchronization
Product
Use Cases
Services
Claim
1. A method of receiving a reference signal, the method performed by a user equipment (UE) and comprising:
receiving, by the UE and from a base station, a synchronization signal in a subframe including a contiguous first slot and second slot; and
receiving, by the UE and from the base station, a reference signal in the same subframe as the synchronization signal,
wherein each of the first slot and the second slot includes a plurality of resource blocks (RBs) and a plurality of orthogonal frequency division multiplexing (OFDM) symbols,
wherein the synchronization signal includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS),
wherein the PSS is received in the last OFDM symbol of the first slot,
wherein the SSS is received in an OFDM symbol before the last OFDM symbol of the first slot,
wherein a cell identifier is acquired based on the PSS and the SSS,
wherein the synchronization signal is received in the center 6 RBs among the plurality of RBs, and
wherein when the reference signal is received in the same center 6 RBs and the same subframe as the synchronization signal, the reference signal is received with a boosted-power level and in at least one OFDM symbol among the plurality of OFDM symbols in the second slot of the same subframe.
2. The method of claim 1,
wherein the subframe includes 12 subcarriers and each of the first and second slots includes 7 OFDM symbols such that the subframe includes 14 OFDM symbols,
wherein the last OFDM symbol is a seventh OFDM symbol in the first slot of the subframe,
wherein the OFDM symbol before the last OFDM symbol is a sixth OFDM symbol in the first slot of the subframe,
wherein the reference signal is received through at least one resource element set of a first resource element set and a second resource element set and created based on the UE identifier,
wherein the first resource element set includes a first subcarrier, a sixth subcarrier, and an eleventh subcarrier on the thirteenth and fourteenth OFDM symbols in the subframe, and
wherein the second resource element set includes a second subcarrier, a seventh subcarrier, and a twelfth subcarrier on the thirteenth and fourteenth OFDM symbols in the subframe.
3. The method of claim 2,
wherein the reference signal received through the first resource element set is received through a first antenna port of the base station, and
wherein the reference signal received through the second resource element set is received through a second antenna port of the base station.
4. The method of claim 1,
wherein the subframe includes 12 subcarriers and each of the first and second slots includes 6 OFDM symbols such that the subframe includes 12 OFDM symbols,
wherein the last OFDM symbol is the twelfth OFDM symbol in the subframe,
wherein the OFDM symbol before the last OFDM symbol is the eleventh OFDM symbol in the subframe,
wherein the reference signal is created based on the UE identifier, and
wherein the reference signal is received through a first subcarrier, a fourth subcarrier, a seventh subcarrier, and a tenth subcarrier on the eleventh and twelfth OFDM symbols in the subframe.
5. The method of claim 1,
wherein the reference signal is created based on the UE identifier, and
wherein, when physical resource block (PRB) bundling is performed on an RB including the reference signal and when the RB is included in a precoding resource block group (PRG), the reference signal is received through the PRG defined in a frequency band including the center 6 RBs.
6. The method of claim 5, further comprising:
receiving information on whether the PRB bundling is performed on the RB in which the reference signal is included.
7. A user equipment receiving a reference signal in a wireless communication system, the user equipment comprising:
a transceiver that receives, from a base station, a synchronization signal in a subframe including a contiguous first slot and second slot and receives, from a base station, a reference signal in the same subframe as the synchronization signal,
wherein each of the first slot and the second slot includes a plurality of resource blocks (RBs) and a plurality of orthogonal frequency division multiplexing (OFDM) symbols,
wherein the synchronization signal includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS),
wherein the PSS is received in the last OFDM symbol of the first slot,
wherein the SSS is received in an OFDM symbol before the last OFDM symbol of the first slot,
a processor that acquires a cell identifier based on the PSS and the SSS,
wherein the synchronization signal is received in the center 6 RBs among the plurality of RBs, and
wherein when the reference signal is received in the same center 6 RBs as the synchronization signal, the reference signal is received with a boosted-power level and in at least one OFDM symbol among the plurality of OFDM symbols in the second slot of the same subframe.
8. The user equipment of claim 7,
wherein the subframe includes 12 subcarriers and each of the first and second slots includes 7 OFDM symbols such that the subframe includes 14 OFDM symbols,
wherein the last symbol is a seventh OFDM symbol in the first slot of the subframe,
wherein the OFDM symbol before the last OFDM symbol is a sixth OFDM symbol in the first slot of the subframe,
wherein the reference signal is received through at least one resource element set of a first resource element set and a second resource element set and is created based on the UE identifier,
wherein the first resource element set includes a first subcarrier, a sixth subcarrier, and an eleventh subcarrier on the thirteenth and fourteenth OFDM symbols in the subframe, and
wherein the second resource element set includes a second subcarrier, a seventh subcarrier, and a twelfth subcarrier on the thirteenth and fourteenth OFDM symbols in the subframe.
9. The user equipment of claim 8,
wherein the reference signal received through the first resource element set is received through a first antenna port of the base station, and
wherein the reference signal received through the first resource element set is received through a second antenna port of the base station.
10. The user equipment of claim 7,
wherein the subframe includes 12 subcarriers and each of the first and second slots includes 6 OFDM symbols such that the subframe includes 12 OFDM symbols,
wherein the last OFDM symbol is the twelfth OFDM symbol in the subframe,
wherein the OFDM symbol before the last OFDM symbol is the eleventh OFDM symbol in the subframe,
wherein the reference signal is created based on the UE identifier, and
wherein the reference signal is received through a first subcarrier, a fourth subcarrier, a seventh subcarrier, and a tenth subcarrier on the eleventh and twelfth OFDM symbols in the subframe.
11. The user equipment of claim 7,
wherein the reference signal is created based on the UE identifier, and
wherein, when physical resource block (PRB) bundling is performed on an RB including the reference signal and when the RB is included in a precoding resource block group (PRG), the reference signal is received through the PRG defined in a frequency band including the center 6 RBs.
12. The user equipment of claim 11, wherein the transceiver further receives information on whether the PRB bundling is performed on the RB in which the reference signal is included.
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