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
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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.
Claims20
A method of determining an index of a synchronization signal/physical broadcast channel (SS/PBCH) block by a user equipment (UE) in a wireless communication system, the method comprising:
- detecting a SS/PBCH block on a cell,
- wherein the detected SS/PBCH block includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a PBCH with a PBCH demodulation reference signal (DM-RS) sequence for the PBCH, and
- wherein the PBCH DM-RS sequence is related to (i) a cell identifier (ID) of the cell and (ii) an index of the detected SS/PBCH block;
- and
- determining the index of the detected SS/PBCH block based on a one-to-one mapping with the PBCH DM-RS sequence for the PBCH.
A user equipment (UE) of determining an index of a synchronization signal/physical broadcast channel (SS/PBCH) block in a wireless communication system, the UE comprising:
- at least one transceiver;
- at least one processor;
- and
- at least one computer memory operatively connected to the at least one transceiver and the at least one processor and, when executed, causing the at least one transceiver and the at least one processor to perform operations comprising:
- detecting, through the at least one transceiver, a SS/PBCH block on a cell,
- wherein the detected SS/PBCH block includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a PBCH with a PBCH demodulation reference signal (DM-RS) sequence for the PBCH, and
- wherein the PBCH DM-RS sequence is related to (i) a cell identifier (ID) of the cell and (ii) an index of the detected SS/PBCH block;
- and
- determining the index of the detected SS/PBCH based on a one-to-one mapping with the PBCH DM-RS sequence for the PBCH.
A base station (BS) configured to transmit a synchronization signal/physical broadcast channel (SS/PBCH) block in a wireless communication system, the BS comprising:
- at least one transceiver;
- at least one processor;
- and
- at least one computer memory operatively connected to the at least one transceiver and the at least one processor and, when executed, causing the at least one transceiver and the at least one processor to perform operations comprising:
- generating a PBCH demodulation reference (DM-RS) sequence for a PBCH for a cell;
- and
- transmitting, on the cell through the at least one transceiver, a SS/PBCH block with the PBCH DM-RS sequence,
- wherein the SS/PBCH block includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and the PBCH, and
- wherein generating the PBCH DM-RS sequence for the PBCH comprises initializing the PBCH DM-RS sequence based on (i) a cell identifier (ID) of the cell and (ii) the index of the SS/PBCH block including the PBCH.
Dependencies are inferred from the claim text.