What is Pdcch and Pdsch?
What is Pdcch and Pdsch?
PDSCH — physical downlink shared channel. The PDSCH carries user data and paging information to the terminal. PDCCH — physical downlink control channel. The PDCCH conveys control information, scheduling decisions for PDSCH reception, and for scheduling grants enabling transmission on the PUSCH.
What does Pdcch stand for?
The Physical Downlink Control Channel (PDCCH) is primarily used to carry scheduling information to individual UEs, i.e., resource assignments for uplink and downlink data and control information.
What is physical layer in LTE?
LTE Physical layer | eNodeB and UE physical layer in LTE. This LTE physical layer covers eNodeB and UE physical layer transmitter modules as per LTE standard. It performs modulation and demodulation functionalities at transmitter and receiver end respectively.
What is Pdsch in 5G?
In 5G NR, PDSCH is the physical downlink channel that carries user data. DM-RS and PT-RS are the reference signals associated with PDSCH. These signals are generated within the PDSCH allocation, as defined in TS 38.211 Sections 7.4. DM-RS is used for channel estimation as part of coherent demodulation of PDSCH.
What is LTE Pdcch?
PDCCH is a physical channel that carries downlink control information (DCI) and it has characteristics as described below. Mapped to the first L OFDM symbols in every downlink subframe. Multiple PDCCH are supported and a UE monitors a set of control channels.
What is downlink and uplink in LTE?
The actual implementation of the technology will be different between the downlink (i.e. from base station to mobile) and the uplink (i.e. mobile to the base station) as a result of the different requirements between the two directions and the equipment at either end.
Why subcarrier spacing is 15 kHz in LTE?
Simply, It is because 3G and LTE have the same clock timing for multi technology handsets.
What are symbols in LTE?
‘The E stands for EDGE (Enhanced Data rates for GSM Evolution) can reach speeds between 120Kbps to 384Kbps. This was the original iPhone’s top data network speed. Now it’s met with a sigh because it means where you’re standing doesn’t have a 3G or 4G signal. ‘
Why are there 12 subcarriers in LTE?
In the downlink, the subcarriers are split into resource blocks. This enables the system to be able to compartmentalise the data across standard numbers of subcarriers. Resource blocks comprise 12 subcarriers, regardless of the overall LTE signal bandwidth. They also cover one slot in the time frame.
What is Dmrs LTE?
DMRS stands for ‘DeModulation Reference Signal’. As the name stands for, this is a reference signal for PUSCH implying that eNodeB would not be able to decode PUSCH if this PUSCH DMRS is bad. PUSCH DMRS always takes up the center symbol of a slot (meaning symbol 3 and symbol 10 of a UL subframe).
What is Dmrs port?
DMRS refers to demodulation reference signal. It is used by a receiver for radio channel estimation for demodulation of associated physical channel.
What is PDCP in LTE?
IP header compression and decompression with the Robust Header Compression (ROHC) method only.
What is LTE network architecture?
Mobile Termination (MT) : This handles all the communication functions.
What is a LTE slot?
Long Term Evolution, or LTE, is a 4G wireless broadband standard that replaces previous technologies like WiMax and 3G. It’s faster than 3G but slower than both true 4G and 5G, the current wireless standard. LTE is used by mobile devices like smartphones and tablets instead of a wireless ( Wi-Fi) connection.