huawei ce&hspa efficiency

7/27/2019 Huawei CE&HSPA Efficiency

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06.April 2006

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei

.com

Huawei CE/HSPA

Efficiency

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com


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HUAWEI TECHNOLOGIES CO., LTD. Page 1

CE Efficiency for R99 - Saving HW&SW Cost

Huawei have higher CE efficiency for R99 services comparing

to other Vendors.

Vendor

UL DL

Huawei

(Before

RAN 3.0)

Huawei

(After

RAN 3.0) Vendor A Vendor B

Huawei

(Before

RAN 3.0)

Huawei

(After

RAN 3.0) Vendor A Vendor B

AMR12.2k 1 1 1 1 1 1 1 1

CS64k 4 3 4 4 4 2 2 4

PS64 4 3 4 4 4 2 2 4

PS128 8 5 8 8 8 4 4 8

PS384 16 10 16 16 16 8 8 16

*Channel Element

1 CE= the resource of one 12.2k voice (including 3.4k DCCH) dissipated in baseband (DL,UL)


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Case Study Vendor B

CE requirement for HSDPA Service.

CE requirement for R99 Signaling.S1/1/1 Configuration Huawei (CEs needed) Vendor B (CEs needed)

Capacity (DL) 256 240

HSDPA 5 Codes Per Cell Activation 0 32*3

HSDPA 10/15 Codes Per cell Activation 0 64*3

10 HSDPA Users (1 user = 1 CE/DL) 10 10

HSDPA Throughput (15 Codes) 14.4 Mbps 10.8 Mbps

Reservation for R99 Signaling (Common Channel) 6+16 26

CE for R99 after activated 5 codes per cell and 10

HSDPA users.

246 108


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Why Huawei CE and HSPA Efficiency High

Down Link

Up Link

One DL Unit

One UL Unit

HSDPA HSUPA


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UL and DL Unit

Mac-hs

(DSP)

Channel control

(DSP)

(ASIC)

ARM

DL unit

UL unit

searcher

Searcher

De-

spreading

Channel

estimation

De-

Modulation

Speed

estimation

Decoding

most of processing isdone in ASIC

ASIC design is based

on high data service

support capability

Schedule

coding

spreading

Modulationcoding

spreading

Modulationcoding

spreading

Modulation(ASIC)

(ASIC)

Cell0

Cell1

Cell2


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How to measure CE/HSPA efficiency?

Test by O&M monitor Test by limitation CE license in 1 cell

Huawei Vodafone CE

efficiency Test Protocol


7/10HUAWEI TECHNOLOGIES CO., LTD. Page 6

Test result in AMX trail on Apr 2nd, NACIONAL site

1HSDPADL/384U

L+1AMR+5VP

1HSDPADL/384U

L+6VP

1HSDPADL/384U

L+8VP

1HSDPADL/384U

L+1AMR+9VP

1HSDPADL/384UL+10VP

1HSDPADL/384U

L+1AMR+10VP

1HSDPADL/384U

L+1AMR+11VP

UL CE DL CE


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Capacity Requirement Analysis

Year 1 Year 2 Year 3 Year 4 Year 5

Total subscribers 147,019 1,093,355 3,941,117 4,654,952 6,807,412

Based on the number of CEs / Carriers / NodeBs defined in 4th round RFP, we

conclude that the network capacity cannot support the total number of subscribers

from the 3rd year onwards.

For example, Year 3, Subscriber number is about 27times bigger than Year 1,

however, the CE quantity in 4th RFP only increased about 2 times.

Number of CEs has strong correlation with number of Subscribers supported.

Year 1Year 2

Year 3Year 4

Year 5

1.0

7.4

26.8

31.7

46.3

1.0 4.6

12.615.8

22.9

1.0 1.4 1.8 2.64.00.0

10.0

20.0

30.0

40.0

50.0

Number of CEs increase ratio according to1st Year (AMX)

Number of CEs increase ratio according to

1st Year (Huawei suggested)

Subscriber increase ratio according to 1st

Year


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Overall CEs Statistics & Analysis

2007

2008

2009

2010

2011

0

50000

100000

150000

200000

Channel Element Summary

Total UL_CE

Total DL_CE

Total Channel Elements suggested by Year

1. More channel elements will be consumed in the uplink for same radio bearer.

For uplink demodulation, the multi-path signal processing and combination are more complex

than downlink modulation and coding processing.2. Huawei dont consider any reservation for CE in Downlink.

3. In normal cases, number of CEs in Uplink will little more than downlink.

4.In later years, PS services traffic accumulated to exceed the CE consumption of CS

services peak traffic in downlink, number of CEs in Downlink will little more than Uplink.


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Thank you!

huawei ce&hspa efficiency

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