nr slot

The network identifies and meets diverse connectivity needs, providing a high-speed connection for streaming a 4K video while simultaneously ensuring the low-latency connection needed for an autonomous vehicle. Furthermore, the 5G frame structure is based on a slot and symbol-based design. The 5G NR frame structure depicts subframes,slot and symbol configurations. Introduction : 5G NR Supports two frequency ranges FR1 (Sub 6GHz) and FR2 (millimeter wave range, 24.25 to 52.6 GHz). NR uses flexible subcarrier spacing derived from basic 15 KHz subcarrier spacing used in LTE. Explaining 5G Subcarrier spacing as compare to LTE, 5G Frame and Subframe, possibilities of different type of 5G NR slot depending upon the different subcarrier spacing and OFDM symbol: 5G Subcarrier Spacing. In 5G NR, subcarrier spacing of 15, 30, 60, 120 and 240 KHz are supported. In LTE, only 2 slots are available. But in NR, the number of slots varies according to the numerology. in 1 slot, the number of symbols are fixed that is 14-with normal cyclic prefix (CP) and 12-with extended CP. The following table summaries number of slots in a sub-frame/frame for each numerology with normal prefix. Answer is to put different number of slots within one subfame. There is another varying parameter with numerology. It is the number of symbols within a slot. However, the number of symbols within a slot does not change with the numerology, it only changes with slot configuration type. lets take few example to understand frame structure in more details . when μ = 0. from below figure you can see for μ = 0 (highlighted row) Number of OFDM symbols in one slot = 14. Number of ... Scalable 5G NR slot duration for diverse latency/QoS 1. As low as two symbols per mini-slot; 2. Symbols across numerologies align at symbol boundaries and transmissions span an integer # of OFDM symbols 14 OFDM symbols per slot with mini-slot (2, 4, or 7 symbols) for shorter transmissions1 Supports slot aggregation for data-heavy transmissions Both slot aggregation and PUSCH repetition Type B are illustrated in Fig. 13.11. With slot aggregation, the same time domain resources are used in a certain number of consecutive slots. If any of the symbols in a slot conflict with, for example, a DL symbol, the corresponding repetition is not transmitted. 5G NR 5G network testing. X LinkedInEmail. One of the key enablers of 5G NR is its flexible transmission characteristic, which is the flexible slot structure with self-contained transmission and scalable frequency-division multiplexing (OFDM) multi-tone numerology. This characteristic provides significant benefits for 5G NR drive testing. Then, 5G-NR is recommended to operate with a TDD DL/UL switching period of 5 ms with the pattern of “DDDDDDDSUU” and the DL/UL ratio of 8:2 to attain synchronization with LTE. In addition, the slot format configuration in NR is very flexible which can match all the configurations of special sub-frame in LTE. Also, in this illustration I assumed that NR slot length is 1 ms as well but in reality the NR slot length and the number of slots within the 1 ms varies depending on numerology (subcarrier spacing). The first option is the case where the Network schedules both LTE and NR in the same time period in different frequency location. Scalable 5G NR slot duration for diverse latency/QoS 1. As low as two symbols per mini-slot; 2. Symbols across numerologies align at symbol boundaries and transmissions span an integer # of OFDM symbols 14 OFDM symbols per slot with mini-slot (2, 4, or 7 symbols) for shorter transmissions1 Supports slot aggregation for data-heavy transmissions