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3G Evolution : HSPA and LTE for Mobile Broadband

TL;DR: In this paper, the authors present a very up-to-date and practical book, written by engineers working closely in 3GPP, gives insight into the newest technologies and standards adopted by threeGPP with detailed explanations of the specific solutions chosen and their implementation in HSPA and LTE.
Abstract: This very up-to-date and practical book, written by engineers working closely in 3GPP, gives insight into the newest technologies and standards adopted by 3GPP, with detailed explanations of the specific solutions chosen and their implementation in HSPA and LTE. The key technologies presented include multi-carrier transmission, advanced single-carrier transmission, advanced receivers, OFDM, MIMO and adaptive antenna solutions, advanced radio resource management and protocols, and different radio network architectures. Their role and use in the context of mobile broadband access in general is explained. Both a high-level overview and more detailed step-by-step explanations of HSPA and LTE implementation are given. An overview of other related systems such as TD SCDMA, CDMA2000, and WIMAX is also provided.This is a 'must-have' resource for engineers and other professionals working with cellular or wireless broadband technologies who need to know how to utilize the new technology to stay ahead of the competition.The authors of the book all work at Ericsson Research and are deeply involved in 3G development and standardisation since the early days of 3G research. They are leading experts in the field and are today still actively contributing to the standardisation of both HSPA and LTE within 3GPP. * Gives the first explanation of the radio access technologies and key international standards for moving to the next stage of 3G evolution: fully operational mobile broadband* Describes the new technologies selected by the 3GPP to realise High Speed Packet Access (HSPA) and Long Term Evolution (LTE) for mobile broadband * Gives both higher-level overviews and detailed explanations of HSPA and LTE as specified by 3GPP
Citations
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Journal ArticleDOI
TL;DR: This paper proposes a mechanism that achieves interoperability between an HSDPA cellular system and a WLAN radio access network based on the definition and calculation of a cost function which uses suitable metrics to trigger interoperability.
Abstract: Next generation wireless communication networks integrate in a seamless manner existing technologies such as 3G wireless networks and WLANs in order to create a heterogeneous system with improved capacity and complementary coverage. Besides, they support more mobile users and a variety of services with variable bandwidth and QoS "anytime anywhere". In this paper, we first present a survey of the most recent methods that achieve interoperability between 3G and WLAN systems. Motivated by the above presented methods, we propose a mechanism that achieves interoperability between an HSDPA cellular system and a WLAN radio access network. The mechanism is based on the definition and calculation of a cost function which uses suitable metrics to trigger interoperability. The performance of the interoperability mechanism is evaluated by means of system level simulations, assuming that both HSDPA and WLAN are enhanced with MIMO space-time coded techniques. Extensive simulations have shown that the incorporation of MIMO schemes greatly affects the inter-system handovers while significant performance enhancements can be achieved at the system level.

5 citations


Cites background from "3G Evolution : HSPA and LTE for Mob..."

  • ...been evolved in order to provide higher data rates and new radio access technologies [1]....

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Dissertation
21 Jul 2017
TL;DR: One of the main contributions of this PhD Thesis is the creation of a smart mobility plan based on fuzzy logic and vehicular communications which is able to determine when a traffic jam occurs in the city, allowing vehicles to adopt alternative routes.
Abstract: RESUMEN (en Ingles) In recent years, the society is experiencing a great technological revolution which, together with the emergence of wireless technologies and smaller devices, is leading to a great impulse in the creation of new services and applications for citizens. Within this revolution, communications networks have served to interconnect people and devices by forging the current Network Society. A few years ago, the term Smart City appeared. This concept is based on the proposal of new solutions that provide a city with services designed to improve the lives of citizens and favor the development of a city as a whole. In this area, the Intelligent Transport Systems (ITS) have led to an important rise in the development of new technological proposals applied to the world of transport. Within the ITS, the concept of vehicular networks arose (Vehicular Ad-hoc NETworks - VANET). This type of wireless network is capable of communicating vehicles and infrastructure to provide certain services. At present, such networks are in the sights of technological developments due to the expected number of applications and services that can contribute to the world of driving and society in general. Simulation is a fundamental tool in the study of the behavior of vehicular networks. In view of the high cost of devices that implement dedicated standards for VANET networks, such as IEEE 802.11p, and the road safety risks involved in the deployment of this type of network, simulation becomes essential for the creation and implementation of new solutions. In this sense, this PhD Thesis performs a thorough review of the existing tools used for the simulation of vehicular networks, proposing a case study applied on the exchange of video in this type of environments. As a result, the integration of three simulators to carry out the video exchange is presented, obtaining an acceptable rate of information transmitted by the vehicles and evaluating the feasibility of the proposal. The mobility is one of the most important aspects in the deployment of vehicular networks. In this sense, one of the main contributions of this PhD Thesis is the creation of a smart mobility plan based on fuzzy logic and vehicular communications which is able to determine when a traffic jam occurs in the city, allowing vehicles to adopt alternative routes. The results of this proposal achieve a reduction of pollutant emissions of up to 12.27%, leading to an improvement of environmental sustainability in the city through the adoption by vehicles of alternative routes in order to reach their destination. One of the problems posed by simulated studies is the achievement of truthful results. Due to the simulation, erroneous conclusions can be drawn which require a real deployment to confirm that the data obtained in the simulation are correct and representative. Considering the high cost of this type of deployment, one of the objectives of the PhD Thesis was to carry out a real deployment through the use of technologies accessible to citizens. At this point, it was decided to develop an application that uses Wi-Fi Direct (technology available in the majority of current smartphones), to detect possible traffic jams or retentions in the city and capable of communicating with other devices. The actual tests were carried out with two vehicles that incorporated the application. The results of this type of evaluation were satisfactory in terms of the existing possibility of carrying out vehicular communications using technologies accessible to the general public, giving a clear example of a system that can help improve mobility in the city. Once the actual study was carried out, the problem arose about the usability of devices on vehicles that provide information services in the vehicular networks. For this purpose, this PhD Thesis proposes the evaluation of two types of systems that provide information to the driver. First, systems with HDD (Head-Down Display) type screens, which are devices with opaque (conventional) screens, were evaluated. A possible solution to the problem posed by this type of screens was also studied, as it is necessary to look away from the road in order to see the screen. For this reason, it was decided to incorporate a HUD (Head-Up Display) device that contains a transparent screen and can be located in the visual field of driving in order to be able to view information about the context in which the vehicle is moving. The results obtained are encouraging and verify the great acceptance and usability that this sort of systems of information visualization has among users. In the line of environmental sustainability, it was proposed by the research group in which this thesis is developed that the networks of mobile vehicles could be a possible solution for the measurement of environmental pollution. Accordingly, an environmental monitoring service was installed in public transport (buses, waste collection vehicles, etc.), capable of measuring environmental pollution in the city. The main problem that we faced was how to represent this kind of information to make it understandable for the general public. For this reason, it was decided to carry out a subjective test on methods to represent information of this type. The results revealed the most appropriate representations of pollution, as well as the devices on which to visualize them and the types of data of most interest to the different groups of users. As we can see, this PhD Thesis proposes an extensive study on vehicle network environments and their inclusion in a Smart City environment, emphasizing the theme of smart mobility and environmental sustainability, without forgetting the technology necessary for the real implementation of new solutions, with the focus firmly on both improving transport in the city and the quality of life of citizens. Keywords: Vehicular Networks, Smart Mobility, Environmental Sustainability, Smart City.

5 citations


Cites background from "3G Evolution : HSPA and LTE for Mob..."

  • ...11, podemos atender al uso de tecnologías establecidas por el 3GPP (The 3rd Generation Partnership Project), como por ejemplo, GPRS [45], 3G [46], 4G [47] e incluso tecnologías de reciente aparición y todavía no implantadas de forma amplia, como 5G, para la comunicación de dispositivos [48] que están siendo utilizadas en estudios recientes dentro de entornos de comunicaciones vehiculares [49]....

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Patent
George Joengren1
05 May 2008
TL;DR: In this paper, the authors proposed a method for selecting at the user terminal (14) a reception and decoding of a transmission mode used by a base station (10), which has multiple antennas (12), via plural channels, including a primary broadcast channel and at least one control channel.
Abstract: A user terminal (14), a communication network (10, 14), a computer readable medium and a method for selecting at the user terminal (14) a reception and decoding of a transmission mode used by a base station (10), the user terminal (14) receiving communicated information from the base station (10), which has multiple antennas (12), via plural channels, the plural channels including a primary broadcast channel and at least one control channel. The method includes receiving at the user terminal (14) initiating data from the base station (10) via the primary broadcast channel, detecting from the received initiating data whether a first or a second transmission mode is used by the base station (10) for the primary broadcast channel, the first transmission mode indicating that a first number of antennas are used by the base station (10) and the second transmission mode indicating that a second number, different than the first number, of antennas are used by the base station (10) to communicate with the user terminal (14), and using the detected first or second transmission mode of the primary broadcast channel to decode the at least one control channel.

5 citations

Journal ArticleDOI
TL;DR: This paper calculates the probability of symbol error rate and bit error rate of M-ary Quadrature Amplitude Modulation over slow, flat, identically independently distributed Rayleigh fading and additive white gaussian channels and shows between SER/BER and energy per bit to noise spectral density.
Abstract: Cellular Mobile Communications have become an essential part of the world telecommunications. However, the systems suffer from multipath propagation effects. In this paper, we calculate the probability of symbol error rate and bit error rate of M-ary Quadrature Amplitude Modulation (M-QAM) over slow, flat, identically independently distributed Rayleigh fading and additive white gaussian channels. Since the fading is one of the major constraints in wireless communications, then diversity modulation technique is used for the efficient transfer of message signals. The simulation results show between SER/BER and energy per bit to noise spectral density.

5 citations


Cites background from "3G Evolution : HSPA and LTE for Mob..."

  • ...Long Term Evolution (LTE) is the recent cellular wireless communication systems standardized by the third Generation Partnership Project (3GPP) [1-4]....

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Proceedings ArticleDOI
10 Jul 2015
TL;DR: A new scheme known as Power Saving-Semi Persistent Scheduling (PS-SPS) for Voice over LTE (VoLTE) users in the downlink of LTE-A cell to reduce the energy consumption in eNodeB is proposed.
Abstract: Long Term Evolution-Advanced (LTE-A) that promises better support to richer applications is expected to catalyze the explosive growth in the number of subscribers and their demand for traffic. Such unprecedented growth will push the limits of energy consumption in the operators network. Hence, there is a need to introduce power saving mechanisms in LTE-A to minimize the energy consumption. In this paper, we propose a new scheme known as Power Saving-Semi Persistent Scheduling (PS-SPS) for Voice over LTE (VoLTE) users in the downlink of LTE-A cell to reduce the energy consumption in eNodeB. PS-SPS introduces the power saving ability through a novel modification of the traditional SPS scheme while retaining its ability to support large number of VoLTE calls. Extensive simulations show that PS-SPS provides an enormous power saving of upto 70% and 35% in the eNodeB for a call arrival rate of 0.1 call/sec and 4 calls/sec respectively in a 20 MHz LTE-A cell with 120 VoLTE users as compared to the traditional SPS.

5 citations