50709729 Features to Be Implemented

8/12/2019 50709729 Features to Be Implemented

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STUDY FOCUS

Features to be implemented in the Airtel Moto Swap Project

ECC

EICC is used mainly in high traffic network where tight frequency reuse is in place

and in situation where the noise of a single interfering source is limited and is

developed from ICC which is a multi-antenna combining technique. In tight

frequency reuse scenarios, the interfering signals at diverse antenna may come

from the same interfering source, therefore a certain correlation exists among the

interfering signals. EICC uses this correlation when combining the signals of the two

antennas to eliminate certain interference which improves the speech quality and

data throughput in situations with strong interference. EICC considers both space

correlation and time correlation to suppress and eliminate interference.

Configuration of EICCE! "CE##$%!& I'!()E*+(I', CE##I'*, !IC##$/E'*(E0

!uawei Power Control Al"orithm

!he aim of power control is to achieve the desired 1o with minimum possible

transmit power. 2uawei II )ower Control lgorithm involves 3 interpolation, 3

filtering, calculation of %2 gain and calculation of ad4ustment step based on the %2

gain. )ower control is necessary to ad4ust and control the transmit power of both 3

and +! in order to reduce interference and decrease power consumption in a

network with tight frequency reuse as well as high traffic volume area. !he decision

on power ad4ustment is made on the basis of the specified thresholds, receive level

and receive quality on uplink and downlink as reported by the +!. It must be

enabled in the cell where I+C algorithm is to be enabled.

Configuration of Huawei III Power Control Algorithm

E! "CE##)/+IC&0

E! "CE##)/5&0

Discontinuous Transmission #DT$%

'iscontinuous transmission reduces data to be transmitted during inactive speech

periods, thus reducing the system interference and saving system resources. It also

reduces the workload of the !6 module of the 3, thus enabling the 3 to en4oy a

longer call duration and standby time.

Configuration of DTX


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E! "CE##+IC)& %'#'!6*(E, 2'#'!6*(E, %7#'!6*hall87se,

27#'!6*hall87se0

$ptional99 :this parameter is configured during downlink '!6 configuration;

Multi Carrier ntelli"ent &olta"e 'e"ulation per T'$

!6 working voltage ad4ustment is a feature through which the +! measures the

downlink transmit power of the !6 in real time and ad4usts its working voltage on

the basis of the downlink load power in the case that the !6 does not transmits

signal at the maximum transmit power.

Configuration of mutil carrier intelligent voltage regulation

E! +!$!2)& )ad4am!hreshold?tart#s*@@0

3$' "C==$'E& +#3CC$$)*=$=7))$!0

E! +!#/& I7))$!+!#/I!C2*(E0

(TS )ocal Switch

+! local switch is triggered when the +! detects that the calling 3 and the

called 3 of a call are under the same +!, in the same +! group or in the same

local switching area. It only applies to doulble-tranceiver +! in !'3 or I)

transmission mode. /hen a +! uses !'3 transmission mode, the +! must be

enabled with %lex bis. It saves transmission resources on the bis and ter

interfaces and reduce the !C processing delay during the call. /hen the +! local

switch is triggered, the speech signal are looped back on the +! side, in the +!

group or in the local switching area.


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Configuration of BTS Local Switch

E! +#& +ss#s"en3ode*+!)I$I!(, +ts#start3ode*+IC$="E!,

bis>am!hreshold?tart#s*@@0

3$' "C==$'E& +#3CC$$)*=$=7))$!0

3$' +!& %#E6+I3$'E*%#E68+I0

E! +!#/& I7))$!+!#/I!C2*(E0

!i"h Speed Si"nalin"

2igh speed signaling link is used by the +C when the A@ kbit9s signaling links fail to

meet the signaling requirements on the interface due to high traffic volume. 2igh

speed signaling refers to a ? 3bit9s signaling link configured with more timeslots

and the signaling transmission capacity is greatly enhanced. Its ma4orly used for

terrestrial transmission

Configuration of High Speed Signaling

'' EB!B&0 to add EB9!B on the interface

'' 3!)5#&0 to add 3!)5 signaling link set

'' 3!)5#=&0 to set link rate type

'' 3!)5!&0 to add an 3!)5 route

)oad Sharin"

#oad sharing enhances the reliability of data transmission. 'ata traffic is shared by

the ports to avoid the condition where some ports are busy whereas others are idle.

!he +CAD supports load sharing between %E9"E ports that are located either on

the same board or on active and standby boards. #oad sharing between %E9"E ports

is based on the user type. !hat is the data of a type of user is carried on one %E9"E

port, and that of another type of user is carried on another %E9"E port +7! the data

of one user is transmitted through only one %E9"E port. /hen the %E9"E ports of the

+CAD work in load sharing mode, the data towards the same I) address may be

transmitted through different ports, and thus different I) routes must be configured.

%or example, load sharing between two %E9"E ports requires two I) routes. !he I)

routes must have the same destination I) address, subnet mask, and priority, butdifferent next-hop I) addresses. !he +CAD supports load sharing between a

maximum of three %E9"E ports.

Configuration of Load Sharing

'' I)!&0 to add an I) route
http://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-ae1t1.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-mtp3lks.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-mtp3lnk.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-mtp3rt.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-iprt.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-mtp3lks.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-mtp3lnk.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-mtp3rt.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-iprt.htmlhttp://localhost:7890/pages/31183948/08/31183948/08/resources/mbsc/m-mml/add-ae1t1.html


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AM'

!he adaptive multi rate :3; is a speech encoding and decoding algorithm, whichcan be ad4usted between full-rate speech version 5 and half-rate speech version 5specified by the protocol. /ith 3, the +! and the 3 can evaluate theinterference on the radio network according to the measurements such as receive

level, receive quality, and carrier-to-interference :C9I; ratio, and then ad4ust thevoice encoding rate accordingly. In this way, both the anti-interference capability ofthe radio communications system and the voice quality are improved.

Configuration of 3

E! +C+IC&


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traffic in the 3C pool thus reducing inter-3C handovers and providingredundancy.

Configuration of SC pool

'' "C=$)E!$& 3C)$$###$/*(E, 3C=I#E=*B, "=)$$###$/*=$0

'' =I3C3)&0 to add the mapping between =I and 3C

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50709729 Features to Be Implemented