PUSCH is an acronym for Physical Uplink Shared Channel, which is a type of channel used in LTE and 5G networks to transmit data from the mobile device to the base station. PUSCH is the main channel that carries user data, such as voice, video, or web browsing, as well as some control information, such as uplink control information (UCI) and RRC signaling messages.
PUSCH is a shared channel, which means that it can be dynamically allocated to different users based on their needs and the network conditions. PUSCH uses different modulation schemes, such as QPSK, 16QAM, or 64QAM, to adapt to the varying channel quality and interference levels. The higher the modulation order, the higher the data rate, but also the higher the sensitivity to noise and fading.
PUSCH is composed of resource elements (REs), which are the smallest units of data transmission in LTE and 5G networks. REs are arranged in a two-dimensional grid of time and frequency domains, forming resource blocks (RBs), which are the basic units of resource allocation. PUSCH can occupy any number of RBs in a subframe, depending on the available bandwidth and the scheduling decision by the base station.
PUSCH is one of the most important channels in LTE and 5G networks, as it determines the performance and quality of service for the users. PUSCH throughput, which is the amount of data that can be successfully transmitted over PUSCH in a given time, depends on several factors, such as the modulation scheme, the coding rate, the number of RBs, the channel quality indicator (CQI), and the signal-to-interference-plus-noise ratio (SINR).