Functional Split Perspectives: A Disruptive Approach to RAN Performance Improvement

Alimi, Isiaka A.; Monteiro, Paulo P.

doi:10.1007/s11277-019-06272-7

Cited by 5 publications

(11 citation statements)

References 9 publications

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“…A typical value of 15 b/symbol is normally employed due to the associated high peak-to-average power ratio of the time domain signal, as well as for guaranteed precise channel measurements [426]. The required bandwidth for the Option 8 Split considering multiple antenna configurations and multiple sectors is as defined in Equation ( 13) [220,425,428].…”

Section: Option 8 Splitmentioning

confidence: 99%

“…The PHY functions split can be achieved in a number of ways between the entities and each sub-option presents different functionalities, as well as bandwidth requirements [429]. The widely known sub-option splits are Options 7-1, 7-2, and 7-3 [425]. All of these sub-options apply to the DL transmission, while just 7-1 and 7-2 can be employed for the UL transmission.…”

Section: Optionmentioning

confidence: 99%

“…The antenna port dependency makes the required MFH bandwidth by the options considerably greater than that of options 7-2. In general, the required bandwidth for the DL and UL in this option are given, respectively, as [425,[430][431][432]]…”

Section: Optionmentioning

confidence: 99%

“…Consequently, the offered DU is relatively complex [8]. The required bandwidth for the DL and UL in this option are given, respectively, as [425,[430][431][432] s , and BW SY s , can be defined, respectively, as [425,430,431]…”

Section: Optionmentioning

confidence: 99%

“…Consequently, the HLS option implementations can result in bulky RE to be mounted on the street lamp poles or utility poles [8]. Therefore, Option 2's DL and UL bandwidth can be expressed, respectively, as [425,430,431 av is the average content size (UL or DL).…”

Section: High Layer Splitmentioning

confidence: 99%

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Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

et al. 2021

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There has been a growing interconnection across the world owing to various multimedia applications and services. Fixed wireless access (FWA) is an attractive wireless solution for delivering multimedia services to different homes. With the fifth-generation (5G) and beyond mobile networks, the FWA performance can be enhanced significantly. However, their implementation will present different challenges on the transport network due to the incessant increase in the number of required cell-sites and the subsequent increase in the per-site requirements. This paper presents a comprehensive tutorial on the enabling technologies, design considerations, requirements, and prospects of broadband schemes. Furthermore, the related technical challenges of FWA are reviewed, and we proffer potential solutions to address them. Besides, we review various transport network options that can be employed for FWA deployment. In this regard, we offer an in-depth discussion on their related requirements for different use cases. Moreover, we give an insight into the 3GPP RAN functional split implementations and implications on the 5G FWA transport network solutions. The concepts of virtualized RANs for attending flexibly to the dynamic nature of different use cases are also presented.

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