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TKK / Communications Laboratory / Courses / |
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NOTE! Last chance to take the
exam is on 8.1.2008, since the course will be replaced by S-72.3275 Cellular
Radio Network Planning and Optimization!!!
S-72.3270
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Latest
news: 08.10.2007
Assignment
and final course results are available. Results have been sent to the
study register (OREK). 17.09.2007
If you couldn’t find the return box (which doesn’t exist)
please deliver your assignment paper to my personal box (Mika Husso) inside
the lab on the 2. floor! Your paper will naturally still be normally
graded. 27.08.2007
The second deadline for submitting the assignment is 14. September. Example
assignment paper. 27.08.2007
The Comlab web server broke down during a thunderstorm last week. This page
has been created from an old backup copy and some information is certainly
missing. 05.04.2007
Exam (7.3.2007) results have been
published! 08.03.2007
Fill the course feedback
form! You get one extra point! 02.03.2007
Link to assignment paper template,
so you can copy tables etc. to your final paper. 01.03.2007
Updated year 2006 assignment grades can be found here. 05.02.07
Looking for a partner to do the assignment with? See and write on the
course EeForum board to find one! |
See
the assignment info!
Course status
For students following the old degree regulations
- The
course is lectured every academic year in the Period III.
- The
course can be included as a compulsory course in the major/minor
subject
- Communications
Engineering (Radio Communications path)
- Communication
Systems
and as optional course in the major/minor subjects - Radio Engineering,
- Signal Processing for Communications,
- Teletraffic Theory.
For students following the new degree regulations
- The course
is lectured every academic year in the Period III.
- The
course is a compulsory course in the option Radio Communication Systems
of the Master’s major subject Radio Communications on the degree
program of Communications Engineering and in the option Radio
Communication Systems of the Master’s major subject Communications
Applications in the degree program of Electronics and Electrical
Engineering.
- Included
in the curriculum of the International Master’s Program in
Telecommunications
The course gives basic knowledge about radio network planning with the focus
on cellular radio network planning. This knowledge is needed by radio network
planners employed by system manufacturers, operators, or other parties in the
mobile communications area. After the course the participant will understand
and be able to apply in his own work:
- the
objectives and general outline of radio network planning,
- the
radio link budget and its application to BS design to meet coverage
targets,
- traffic
estimation and its application to cell design to meet capacity
targets,
- interference
analysis and its application to frequency allocation to meet
interference outage targets in FDMA/TDMA based radio networks,
- connection
between capacity and coverage especially in CDMA networks.
Prerequisites
It is assumed that the participants have done S-72.245 Transmission Methods
in Telecommunication Systems (4 credits) or S-72.1140 Design Methodology of
Telecommunication Systems 5 ECTS-credits), S-72.3210 Channel Modelling for
Radio Communication Systems (3 credits (op)), and S-72.610/S-72.2210 Mobile
Communication Systems and Services (2 credits/3 ECTS-credits) or equivalent
courses.
Teachers
Professor Riku Jäntti is the responsible teacher and lecturer of this course.
Mika Husso is the course assistant.
Mika Nupponen is the web-master.
Lectures and exercises
Lectured every academic year in Period III. Lectures starting on January 19.01.2007
- Lectures:
on Fridays 10 – 12 in Room H302, Weeks 3 - 8
- Exercises:
on Fridays 12 – in Room H302, Weeks 6 - 9
Assignment
The course includes a compulsory assignment where the described planning
methods are applied to the preliminary design of a GSM1800 radio network for
a fictive service area. The assignment is done in two persons’
teams.
The plan comprises a capacity plan, a coverage plan, and a frequency plan.
The plan is based on the use of macrocells in all regions, but in the city
region a separate macrocell plan for vehicular originated traffic and
microcell plan for pedestrian originated traffic are implemented. The target
is to first estimate the offered traffic and then minimize the number of
cells, and then to minimize the number of transceivers in each cell still
fulfilling the blocking and interference outage targets for this traffic,
given the maximum parameter values. Network tuning and easy network
expandability are not considered.
The purpose of this exercise is to help the student to understand how
different things interact in cellular radio network planning, and, hopefully,
to give the student skills to design computer planning tools. It corresponds
mainly to the initial network dimensioning to get a rough cost estimate when
a vendor should offer a network. Final network planning should be made
with computer tools and may be based on other objectives than minimising
excess capacity as in this assignment.
To facilitate the work some unsupported Excel-tools for radio link budget and
minimum reuse distance calculations are provided.
Requirements
The course is carried out by
- an exam and
- an assignment.
The exam requirements consist of the material distributed to the
students. The first exam is on March 7, 2007. The exam consist of two
parts: starting with a closed book part comprising two tasks about general
topics followed by an open book part comprising three problem solving tasks.
Information about the following exams will be shown on the Departments web-pages.
Final grade
The final course grade is calculated from the formula:
- Final
grade = (Exam grade + assignment grade)/2
The student should pass both the exam and assignment with an accepted
grade.
Assignment
info
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In Table 2.5 of the assignment instruction the
channel activity factor expression should be eta_traffic channel = (1 -
B)Tcell/N where
Tcell is the offered traffic in a cell and N is the number of traffic
channel in the cell and B is the corresponding blocking probability. A
correct version of this expression for a cell with the maximum traffic for
given blocking is Eq. 4.13 in the lecture material on frequency
planning. |