Method and apparatus for generating and using reference signal for broadcast channel for radio system
View Patent ↗A node of a radio access network comprises processor circuitry ( 30 ) and transmitter circuitry ( 34 ). The processor circuitry ( 30 ) generates a synchronization signal block comprising a Physical Broadcast Channel (PBCH) and a demodulation reference signal for the Physical Broadcast Channel (PBCH) from which demodulation reference signal a parameter of the radio access network can be determined. The transmitter circuitry transmits the synchronization signal block and the demodulation reference signal over a radio interface ( 24 ).
1. A base station apparatus comprising:
processor circuitry configured to generate a block including at least a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), and a demodulation reference signal for the PBCH,
a reference signal sequence of the demodulation reference signal being generated based on a pseudo-random sequence which is initialized with a value, and
the value being determined based on (a) a physical layer cell identity (PCID) and (b) an index of the block; and
transmitter circuitry configured to transmit the block.
2. A method of a base station apparatus comprising:
generating a block including at least a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), and a demodulation reference signal for the PBCH,
a reference signal sequence of the demodulation reference signal being generated based on a pseudo-random sequence which is initialized with a value, and
the value being determined based on (a) a physical layer cell identity (PCID) and (b) an index of the block; and
transmitting the block.
3. A user equipment comprising:
receiver circuitry configured to receive a block including at least a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), and a demodulation reference signal for the PBCH, a reference signal sequence of the demodulation reference signal being generated based on a pseudo-random sequence which is initialized with a value; and
processor circuitry configured to determine the value based on (a) a physical layer cell identity (PCID) and (b) an index of the block.
4. A method of a user equipment, the method comprising:
receiving a block including at least a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), and a demodulation reference signal for the PBCH, a reference signal sequence of the demodulation reference signal being generated based on a pseudo-random sequence which is initialized with a value; and
determining the value based on (a) a physical layer cell identity (PCID) and (b) an index of the block.