Blocking Probability Analysis for 5G New Radio (NR) Physical Downlink Control Channel

Mozaffari, Mohammad; Wang, Y.-P. Eric; Kittichokechai, Kittipong

doi:10.1109/icc42927.2021.9500774

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…5G capacity calculations have been indirectly introduced in [16], presenting control channel resources and some simplified VoNR capacity calculations while comparing results with VoLTE. A more detailed study is provided in [17], where Blocking Probability of downlink control channel is obtained. Control mechanisms impact on VoNR is presented in [18], including some results from real-world tested scenarios.…”

Section: Related Workmentioning

confidence: 99%

“…Each CCE is composed by multiple Resource Element Groups (REGs), in turn made up of groupings of REs, which number vary for LTE and 5G. To simplify the calculations, a relationship between MCS and AL has been determined as a function of whether the radio conditions are optimal (22)(23)(24)(25)(26)(27), average (15)(16)(17)(18)(19)(20)(21), bad (7)(8)(9)(10)(11)(12)(13)(14) or very bad (0-6). The corresponding MCS-AL mapping is defined in [18], as 2 for average conditions, 4 for bad, and 8 for very bad.…”

Section: ) Physical Downlink Control Channel (Pdcch) Limitationmentioning

confidence: 99%

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Analysis of Mission Critical Services Radio Access Network Capacity Limitations Over 5G

Santiago,

De Cerio,

Sanchoyerto

et al. 2024

IEEE Access

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The evolution of Critical Communications has been conditioned by the underlying networks ranging from previous narrowband almost voice-only Private Mobile Radios (PMR) to now multimedia capable broadband Long Term Evolution (LTE) / fifth generation (5G). Due to the nature of critical communications, the 3rd Generation Partnership Project (3GPP) has defined a series of requirements and recommendations to ensure that availability and performance of Mission Critical Services (MCX) are guaranteed specially in massive group communications. However, no study has been conducted to determine if required capacity and scalability conditions in crisis events can be actually satisfied by commercial or even hybrid LTE/5G networks. This paper presents an analysis of the capacity limitations of the MCX voice service over broadband networks in terms of number of concurrent streams that can be served per cell by comprehensively identifying the different transmission and protocols related bottlenecks. The aggregation of such constraints results in a theoretical model for the maximum capacity of LTE/5G, far more realistic than coarse grain estimations that consider overall cell peak rate. Furthermore, a comparison between MCX over LTE and 5G is provided, indicating the ratio of unusable or wasted radio resources to the total amount available. This way not only actual maximum achievable capacity but also a measure of the efficiency in terms of radio resource usage is provided, which is extremely important for the business model behind hybrid deployments. Both results will contribute towards better network dimensioning as well as possible finer tuning of network and service parameters.

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Section: Related Workmentioning

confidence: 99%

Section: ) Physical Downlink Control Channel (Pdcch) Limitationmentioning

confidence: 99%

Analysis of Mission Critical Services Radio Access Network Capacity Limitations Over 5G

Santiago,

De Cerio,

Sanchoyerto

et al. 2024

IEEE Access

View full text Add to dashboard Cite

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“…A REG is a set of 12 contiguous REs (or 1 RB) in one symbol duration [55]. A CORESET may span up to 6, possibly noncontiguous, RBs in frequency [55]- [56] and between 1 and 3 contiguous OFDM symbols in time.…”

Section: E Nr Coreset Pdcch and DCImentioning

confidence: 99%

Dynamic Spectrum Sharing for 5G NR and 4G LTE Coexistence - A Comprehensive Review

Saha,

Cioffi

2024

IEEE Open J. Commun. Soc.

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In the early phase, the number of new radio (NR) users is considerably low compared to the long-term evolution (LTE) users. Hence, allocating the LTE spectrum to a small number of NR users will have a detrimental effect on the LTE users. To overcome this backdrop, dynamic spectrum sharing (DSS) between LTE and NR has become an emerging technology where both systems can coexist on the same LTE spectrum. However, the most critical factor for LTE and NR coexistence is to share the spectrum resources of LTE systems with data and control signals necessary to operate NR systems subject to not impacting LTE operations. In line with this, a comprehensive understanding of DSS for LTE and NR coexistence taking into account diversified concerns is presented in this paper. First, an overview of the technological background of essential signals and channels of both LTE and NR systems to enable DSS for their coexistence is given. Numerous deployment options and potential design considerations of DSS are then discussed. The application of DSS to both multicast-broadcast single-frequency network (MBSFN) and non-MBSFN LTE subframes under NR with and without synchronization signal/ physical broadcast channels (PBCH) block (SSB) transmissions is examined. Further, the third-generation partnership project (3GPP) standardization activities towards DSS in its different releases are discussed, numerous use cases are highlighted, and the significance and limitations of DSS are identified. To provide additional insights, the relative comparison of potential aspects of several DSS concerns including, deployment options, design considerations, DSS applications, and 3GPP standardization efforts, is carried out. Finally, a summary of key lessons learned is provided in terms of numerous facts and figures.

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“…The PDCCH finds applications in scheduling both uplink (UL) and downlink (DL) data channels. It has a variety of specialized functions such as uplink power control, slot format indication, and preemptive scheduling [6,7]. Information carried on the PDCCH is called downlink control information (DCI) [6,7].…”

Section: G/nr Network Architecture Overviewmentioning

confidence: 99%

“…It has a variety of specialized functions such as uplink power control, slot format indication, and preemptive scheduling [6,7]. Information carried on the PDCCH is called downlink control information (DCI) [6,7]. To receive DCI via the PDCCH, the UE observes a collection of PDCCH candidates during one or more configured monitoring instances within designated control resource sets (CORESETs) according to specified search space set (SS-Set) configurations [6].…”

Section: G/nr Network Architecture Overviewmentioning

confidence: 99%

Physical Downlink Control Channel (PDCCH) Performance Evaluation for 5G/NR Networks at Different Positions of the User Equipment

Barona-Castillo,

González-González,

Paredes-Paredes

2023

XXXI Conference on Electrical and Electronic Engineering

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Blocking Probability Analysis for 5G New Radio (NR) Physical Downlink Control Channel

Cited by 7 publications

References 7 publications

Analysis of Mission Critical Services Radio Access Network Capacity Limitations Over 5G

Analysis of Mission Critical Services Radio Access Network Capacity Limitations Over 5G

Dynamic Spectrum Sharing for 5G NR and 4G LTE Coexistence - A Comprehensive Review

Physical Downlink Control Channel (PDCCH) Performance Evaluation for 5G/NR Networks at Different Positions of the User Equipment

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