Method and device for transmitting and receiving signal between user equipment and base station in wireless communication system
AssigneeLG Electronics Inc.
InventorsHyunsoo KO, Kijun KIM, Eunsun KIM, Sukhyon YOON
Life of this patent
Estimating the term…
Abstract
The present invention discloses a method for transmitting and receiving signals between a user equipment and a base station in a wireless communication system and device for supporting the same. More specifically, the invention discloses a method by which, when a base station transmits synchronization signal blocks in various beam directions, a user equipment achieves synchronization with the base station by detecting the index of a received synchronization signal block and then transmits and receives signals with the base station.
Claims8
A method for transmitting and receiving signals to and from a base station (BS) by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving a synchronization signal/physical broadcast channel (SS/PBCH) block from the BS;
- determining an index of the received SS/PBCH block based on a demodulation reference signal (DM-RS) sequence for a PBCH included in the SS/PBCH block or a combination of the sequence and information included in the PBCH,
- wherein the SS/PBCH block further comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS);
- performing synchronization with the BS based on the determined index of the SS/PBCH block;
- and
- obtaining time synchronization and a cell identifier (ID) based on the PSS and SSS,
- wherein a Gold sequence is used as the DM-RS sequence, and
- wherein the Gold sequence uses an initial value determined based on the cell ID and the index of the SS block.
2-5. (canceled)
A method for transmitting and receiving signals to and from a user equipment (UE) by a base station (BS) in a wireless communication system, the method comprising:
- transmitting at least one synchronization signal/physical broadcast channel (SS/PBCH) block,
- wherein a demodulation reference signal (DM-RS) sequence for a PBCH included in each SS/PBCH block or a combination of the sequence and information included in the PBCH indicates an index of each SS/PBCH block,
- wherein the SS/PBCH block further comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS);
- and
- transmitting and receiving signals to and from the UE that performs synchronization with the BS based on the at least one SS/PBCH block,
- wherein the DM-RS sequence for the PBCH included in each SS/PBCH block corresponds to a Gold sequence based on a cell identifier (ID) and each SS/PBCH block index.
9-10. (canceled)
A user equipment (UE) for transmitting and receiving signals to and from a base station (BS) in a wireless communication system, the UE comprising:
- a transmitter;
- a receiver;
- and
- a processor connected to the transmitter and receiver,
- wherein the processor is configured to:
- receive a synchronization signal/physical broadcast channel (SS/PBCH) block from the BS;
- determine an index of the received SS/PBCH block based on a demodulation reference signal (DM-RS) sequence for a PBCH included in the SS/PBCH block or a combination of the sequence and information included in the PBCH,
- wherein the SS/PBCH block further comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS);
- perform synchronization with the BS based on the determined index of the SS/PBCH block;
- and
- obtain time synchronization and a cell identifier (ID) based on the PSS and SSS,
- wherein a Gold sequence is used as the DM-RS sequence, and
- wherein the Gold sequence uses an initial value determined based on the cell ID and the index of the SS block.
A base station (BS) for transmitting and receiving signals to and from a user equipment (UE) in a wireless communication system, the BS comprising:
- a transmitter;
- a receiver;
- and
- a processor connected to the transmitter and receiver,
- wherein the processor is configured to:
- transmit at least one synchronization signal/physical broadcast channel (SS/PBCH) block,
- wherein a demodulation reference signal (DM-RS) sequence for a PBCH included in each SS/PBCH block or a combination of the sequence and information included in the PBCH indicates an index of each SS/PBCH block,
- wherein the SS/PBCH block further comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS);
- and
- transmit and receive signals to and from the UE that performs synchronization with the BS based on the at least one SS/PBCH block
- wherein the DM-RS sequence for the PBCH included in each SS/PBCH block corresponds to a Gold sequence based on a cell identifier (ID) and each SS/PBCH block index.
Dependencies are inferred from the claim text.