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Introduction to Dynamic grant
5G NR Grant Free Dynamic Scheduling – Transmission without Grant is a work item for the 5G NR. This effort aims to remove control of transmission from the eNB and allow a source node to change its transmission parameters based on feedback from a receiver.
The 5G NR Dynamic Scheduling – Transmission without Grant technique enables support for schedule-less transmission, which is an essential function for control plane data transmission. This feature allows the network devices to transmit their control plane packets in advance as well as to transmit data packets significantly earlier than before and accounts for unpredictable traffic changes.
The free dynamic scheduling service for 5G NR is a specific feature to optimize the resource utilization and reduce the overhead in user planes. It reduces the overhead of the scheduler, and increases the throughput in the user plane by using a reduced grant size.
This research proposal presents an innovative system for dynamic scheduling in 5G NR which does not require a grant allocation for optimal transmission for each mobile user. It provides maximum throughput, outperforming existing methods. With this approach, each UE can be scheduled independently to achieve minimum latency and high throughput.
This problem describes an approach where the eNB transmits on demand, i.e., transmission without grant and dynamic scheduling of subframes is performed in the uplink. An “on-demand” approach can be used in conjunction with a number of different schemes that allow non-contiguous transmission. Dynamic scheduling allows mobile devices to transmit when they want, as opposed to being scheduled by the network.
This proposal is mainly aimed at research, experimenting and evaluating the 5G NR Dynamic Scheduling transmission strategies. By employing different implementations of the dynamic scheduling strategies we can evaluate how successful each method is and how it performs under different propagation environments. In addition, we can compare the performance with LTE where we can also see if there are any benefits or drawbacks by changing from Frame Structure.
5G NR Grant Free Dynamic Scheduling
The 5G NR Grant Free Dynamic Scheduling – Transmission without Grant Request (5G-DFSR) is a novel transmission scheme for future 5G systems that aims to dynamically schedule data transmissions without the need for a central coordinator and without assigning separate identity numbers (IDs) to each user in advance. On the sender side, it means that transmission can be done without having to request or wait for a grant channel from any central entity such as an eNB or even one of its neighboring eNBs (neighbor eNB).
The 5G NR grant deferment is the transaction to request for any transmission without grant. In other words, it is a proactive request for the transmission opportunity without waiting for the RAT to be notified by eNodeB and then sending a grant message back to UE. The scheduler management entity (SME) can evaluate UEs transmission data including channel condition, interference environment, load conditions in wireless network and so on as well as current resource configuration to make decision on how many UE that should be allowed to transmit simultaneously and which resource configuration will be allocated to them.
5G wireless technology, including 5G NR, provides a wide range of opportunities to improve QoE and overcome challenges faced by the traditional cell phone. The LTE system utilizes the dynamic scheduling and has been widely used in 3GPP specifications. But, it is not suitable for all services due to some limitations such as latency and peak-to-average power ratio (PAPR). In order to solve these problems, this paper proposes a rapid adaptive adaptive transmission without grant for 5G communication in three phases: training phase, acquisition phase/data transmission phase. During training phase, the transmission parameters are determined from available hardware resources (TR) using sparse approximation techniques such as diagonal jumping algorithm (DJA) based on Cyclic Redundancy Check (CRC) check; then detecting the broadcast channel modes (BM) using frequency domain prediction methods such as Block Walsh Transform (BWT); furthermore it uses sparse approximation techniques such as PI control method to adjust the transmit power baseline. All these steps will be done offline except calculating BM
5G NR Dynamic Scheduling was given by ETSI to the proposal submitted by Nokia, Intel and Net Com. This Dynamic scheduling developed as a result of collaboration among major international companies (Nokia, Intel and Net Com) in cooperation with Standardization Bodies like 3GPP (Third Generation Partnership Project). This is a technology that enables transmission without any pre-allocation of specific amounts of radio resources. This technology allows dynamic allocation of resources to connect users at any time, without having to wait for their turn or share spectrum with other users.
5G NR Dynamic Scheduling
5G NR Dynamic Scheduling is a transmission technology that allows multiple cells to use the same resource on different time-frequency slot sharing basis. It allows cell-edge devices to receive uplink signals from the closest cell and thereby improve the performance of these devices at the cell edge.
Faster scheduling processes, reduced signaling overhead, and enhanced data throughput.
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