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4G/5G spectrum sharing for enhanced mobile broad-band and IoT services

4G/5G spectrum sharing for enhanced mobile broad-band and IoT services
4G/5G spectrum sharing for enhanced mobile broad-band and IoT services
5G has been developed for supporting diverse services, such as enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable low latency communication (URLLC). The latter two constitute enablers of the Internet of Things (IoT). The new spectrum released for 5G deployments, primarily above 3 GHz, unfortunately has a relatively high path-loss, which limits the coverage, especially for the uplink (UL). The high propagation loss, the limited number of UL slots in a TDD frame and the limited user-power gravely limit the UL coverage, but this is where bandwidth is available. Moreover, the stringent requirements of eMBB and IoT applications lead to grave 5G challenges, such as site-planning, ensuring seamless coverage, adapting the TDD DL/UL slot ratio and the frame structure for maintaining a low bit error rate (BER) as well as low latency, etc. This paper addresses some of those challenges with the aid of a unified spectrum sharing mechanism, and by means of an UL/DL decoupling solution based on 4G/5G frequency sharing. The key concept is to accommodate the UL resources in an LTE FDD frequency band as a supplemental UL carrier in addition to the New Radio (NR) operation in the TDD band above 3 GHz. With the advent of this concept, the conflicting requirements of high transmission efficiency, large coverage area and low latency can be beneficially balanced. We demonstrate that the unified 5G spectrum exploitation mechanism is capable of seamlessly supporting compelling IoT and eMBB services.
1556-6072
Wan, Lei
7d414ec6-9634-47ee-a8ff-21b5c4739fec
Guo, Zhiheng
fdbae409-208c-449c-8101-a3bb89fa2835
Wu, Yong
c1e5492b-8ae0-4712-acd6-87fd33ac7f12
Bi, Wenping
bfe495fd-0e36-4672-bef7-beb1b36322a2
Yuan, Jinhong
707c1922-81c1-4d40-b532-0f30282bb0e4
Elkashlan, Maged
27c756ff-bfd3-4844-8769-ace5ad28c840
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Wan, Lei
7d414ec6-9634-47ee-a8ff-21b5c4739fec
Guo, Zhiheng
fdbae409-208c-449c-8101-a3bb89fa2835
Wu, Yong
c1e5492b-8ae0-4712-acd6-87fd33ac7f12
Bi, Wenping
bfe495fd-0e36-4672-bef7-beb1b36322a2
Yuan, Jinhong
707c1922-81c1-4d40-b532-0f30282bb0e4
Elkashlan, Maged
27c756ff-bfd3-4844-8769-ace5ad28c840
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Wan, Lei, Guo, Zhiheng, Wu, Yong, Bi, Wenping, Yuan, Jinhong, Elkashlan, Maged and Hanzo, Lajos (2018) 4G/5G spectrum sharing for enhanced mobile broad-band and IoT services. IEEE Vehicular Technology Magazine. (In Press)

Record type: Article

Abstract

5G has been developed for supporting diverse services, such as enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable low latency communication (URLLC). The latter two constitute enablers of the Internet of Things (IoT). The new spectrum released for 5G deployments, primarily above 3 GHz, unfortunately has a relatively high path-loss, which limits the coverage, especially for the uplink (UL). The high propagation loss, the limited number of UL slots in a TDD frame and the limited user-power gravely limit the UL coverage, but this is where bandwidth is available. Moreover, the stringent requirements of eMBB and IoT applications lead to grave 5G challenges, such as site-planning, ensuring seamless coverage, adapting the TDD DL/UL slot ratio and the frame structure for maintaining a low bit error rate (BER) as well as low latency, etc. This paper addresses some of those challenges with the aid of a unified spectrum sharing mechanism, and by means of an UL/DL decoupling solution based on 4G/5G frequency sharing. The key concept is to accommodate the UL resources in an LTE FDD frequency band as a supplemental UL carrier in addition to the New Radio (NR) operation in the TDD band above 3 GHz. With the advent of this concept, the conflicting requirements of high transmission efficiency, large coverage area and low latency can be beneficially balanced. We demonstrate that the unified 5G spectrum exploitation mechanism is capable of seamlessly supporting compelling IoT and eMBB services.

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4G 5G Spectrum Sharing for Enhanced Mobile Broad-Band and IoT Services - Accepted Manuscript
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More information

Accepted/In Press date: 13 August 2018

Identifiers

Local EPrints ID: 423250
URI: http://eprints.soton.ac.uk/id/eprint/423250
ISSN: 1556-6072
PURE UUID: 4118a5bf-f3e0-42c8-8a62-4790adf73c2b
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 19 Sep 2018 16:31
Last modified: 13 Aug 2022 01:32

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Contributors

Author: Lei Wan
Author: Zhiheng Guo
Author: Yong Wu
Author: Wenping Bi
Author: Jinhong Yuan
Author: Maged Elkashlan
Author: Lajos Hanzo ORCID iD

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