Huawei Hahdover Algoritm II — Планирование и оптимизация сетей GSM

[TOV]

Если кто знает (или есть дока) в чем отличие Huawei Hahdover Algoritm I и Huawei Hahdover Algoritm II, поделитесь пожалуйста.
tov_66 собака mail.ru

[TOV]

В смысле Huawei Handover Algorithm (очепятка вкралась)

[orcinus_orca]

куда кидать?

[TOV]

куда кидать?

tov_66(собака)mail.ru
(собака)=@

Заранее спасибо.

[Call Drop]

5 лет на Huawei работаю но знаю только про HW Channel Assignment Algorithm 1,2 может это имеете в виду?
HW 1 Channel Assignment Algorithm - уже не работает:
1.Использует последовательный режим назначения каналов;
2.Не способен назначать каналы в соответствии с приоритетом;
3.Прост в реализации и не требует больших затрат системных ресурсов.
HW 2 Channel Assignment Algorithm - уже не работает:
1.Назначает каналы наилучшим образом;
2.Всегда выбирает лучший по показателям канал;
3.Более сложен в реализации, но более эффективен.
Критерии выбора следующие:
1.Channel priority of IUO cell TRX property;
2.Channel type priority
3.Interference priority
4.TRX priority
5.History record priority
Назначен будет канал, имеющий самый высокий приоритет.

Huawei Handover Algorithm - может имеете в виду правило 16 бит (все хэндоверы проходят по этому правилу)?

Есть мануал на русском и по хэндоверам и HW Channel Assignment Algorithm 1,2.

[Call Drop]

HW 2 Channel Assignment Algorithm - уже не работает:
Здесь опечатался. Замечательно работет. Просто Ctrl+C Ctrl+V с HW 1 Channel Assignment Algorithm - уже не работает:

[orcinus_orca]

Есть мануал на русском и по хэндоверам и HW Channel Assignment Algorithm 1,2.

Скинь русский мануал на dentuso@tut.by
Может там попроще написано, а то чуть голову не сломал пока в английском разбирался

[TOV]

5 лет на Huawei работаю но знаю только про HW Channel Assignment Algorithm 1,2 может это имеете в виду?

Есть мануал на русском и по хэндоверам и HW Channel Assignment Algorithm 1,2.

Нет, не ошибся. Речь именно о handover.
Пришлите мануал пожалуйста:
tov_66(собака)mail.ru
(собака)=@

[Mitay]

Пришлите, пожалуйста, мануал на mitaynik@mail.ru
с английским трудновато)
Заранее благодарен!

[Sila2]

orcinus_orca
если получил это

Скинь русский мануал на dentuso@tut.by
Может там попроще написано, а то чуть голову не сломал пока в английском разбирался

перекинь, ПЛЗ, сюда
sila1959@yandex.ru

[ash]

киньте и мне на sher72@mail.ru

[piter_pan]

Буду очень признателен, eсли скинете на dmitriand@gmail.com

[CAHbKA]

Буду очень признателен, eсли скинете на dmitriand@gmail.com

скидывают?
Тоже хотел бы получить литературку по АЛГОРИТМ1 и АЛГОРИТМ2 (именно про хендовер). votgde(at)mail.ru
Скажу спасибо.

[ash]

нет , чето никто не прислал......

[Szary]

нарыл чуть чуть через сайт хуавея. Одно из отличий- это много дополнительных настроек появилось.


Configuring HUAWEI II Handover

This section describes how to activate, verify, and deactivate the optional feature GBFD-510501 HUAWEI II Handover.
Prerequisites

* Dependency on Hardware
o None
* Dependency on Other Features
o None
* License
o The license is activated.

Context

Huawei II handover algorithm will traverse all the handover types in the handover decision-making phase. In the process of traversing the handover types, Huawei II handover algorithm does not execute a handover immediately but creates a candidate target cell list when the triggering conditions of the handover are met, compared with the common handover algorithm. After all the handover types are traversed, the intersection of the candidate cell lists that meet the handover triggering conditions is selected as the final target cell list. Huawei II handover algorithm, which is different from a common handover algorithm, considers comprehensively all handover decision-making results so that the final handover decision-making result is more accurate.

Huawei II handover algorithm is classified into emergency handover, intra-cell handover, and inter-cell handover.

*

The emergency handover is classified into quick handover, bad quality handover, and TA handover.
*

The intra-cell handover is classified into handover between TCHF and TCHH.
*

The inter-cell handover is classified into interference handover, no downlink measurement report handover, enhanced dual-band network handover, edge handover, fast-moving micro cell handover, better cell handover, and SDCCH handover.

CAUTION:

* After quick handover, bad quality handover, and TA handover are successfully performed, penalty is applied on the old cell during the penalty time to prevent an immediate handover back to the old cell.
* In Huawei II handover algorithm, the serving cell must not be selected as the target cell of bad quality handover.
* During TA handover, if the TA Threshold of a co-sited neighboring cell is lower than or equal to the TA Threshold of the serving cell, a handover to the neighboring cell is prohibited.
* An interference handover can be an intra-cell handover. However, when intra-cell handover is triggered several times continuously, it will be forbidden within a specified duration. In Huawei II handover algorithm, only the serving cell can be selected as the target cell of interference handover.
* On the enhanced dual-band network, the MS should not be handed over to a cell in the same underlaid/overlaid cell group when the load handovers between the overlaid cell and the underlaid cell (specified by Load HO From UL Subcell to OL Subcell Allowed and Load HO of OL Subcell to UL Subcell Enabled) are allowed. This is to prevent a load handover of a normal cell from colliding with a load handover between the overlaid cell and the underlaid cell on the network.
* PBGT handover toward a cell of the same group is not allowed once it is triggered between the enhanced dual-band network cells.
* After the fast-moving micro cell handover is successful, the penalty is applied on all the neighboring micro cells.
* Huawei II handover supports the quick handover, TA handover, bad quality handover, interference handover, no downlink measurement report handover, enhanced dual-band network handover, edge handover, fast-moving micro cell handover, better cell handover, handover between TCHF and TCHH, and SDCCH handover.
* Load handover is not treated as an independent handover type for handover decision-making. The load handover decision is made in the network adjustment phase. The selection of a target cell should be processed by the better cell handover. That is, the load handover is triggered when the triggering conditions of load handover and better cell handover are met simultaneously.
* Better cell handover is an optimization of inter-layer handover and PBGT handover in Huawei I handover algorithm. It is specific to Huawei II handover algorithm.

Procedure

* Activation Procedure
1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Current HO Control Algorithm to HOALGORITHM2(Handover algorithm II).

2. Run the BSC6900 MML command SET GCELLHOEMG. In this step, set Current HO Control Algorithm to HOALGORITHM2(Handover algorithm II).
3. Run the BSC6900 MML command SET GCELLHOFITPEN. In this step, set Current HO Control Algorithm to HOALGORITHM2(Handover algorithm II).
4. Run the BSC6900 MML command SET GCELLHOIUO. In this step, set Current HO Control Algorithm to HOALGORITHM2(Handover algorithm II).
5. Activating the quick handover algorithm

1. Run the BSC6900 MML command MOD G2GNCELL. In this step, set Chain Neighbor Cell to YES(Yes) and set Chain Neighbour Cell Type according to the actual situation.
2. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Quick Handover Enable to YES(Yes).
3.

Run the BSC6900 MML command SET GCELLHOFAST. In this step, set Quick Move Speed Threshold, Quick Handover Up Trigger Level, Quick Handover Down Trigger Level, Quick Handover Offset, Quick Handover Punish Time, Quick Handover Punish Value, Serving Cell Filter Length MR Number, Neighbor Cell Filter Length MR Number, Ignore Measurement Report Number, EN Quick PBGT HO ALG When MS Leaves BTS, Handover Direction Forecast Enable, Handover Direction Forecast Statistic Times, Frequency Shift Handover Statistic Time, and Frequency Shift Handover Duration according to the actual situation.
NOTE:

If this cell is configured with external neighboring cells, Quick Handover Offset, Quick Handover Punish Time, and Quick Handover Punish Value need to be set by running the BSC6900 MML command MOD GEXT2GCELL.
4. Run the BSC6900 MML command SET GCELLOTHEXT. In this step, set UL Frequency Adjust Switch, DL Frequency Adjust Switch, and UL Frequency Adjust Value based on the frequency offset information reported by the BTS.
6. Activating the TA handover algorithm

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set TA HO Allowed to YES(Yes).
2. Run the BSC6900 MML command SET GCELLHOEMG. In this step, set TA Threshold according to the actual situation.
3. Run the BSC6900 MML command SET GCELLHOFITPEN. In this step, set Penalty Time after TA HO and Penalty Level after TA HO according to the actual situation.
4. Run the BSC6900 MML command MOD G2GNCELL. In this step, set TA HO Watch Time and TA HO Valid Time according to the actual situation.
7. Activating the bad quality handover algorithm

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set BQ HO Allowed to YES(Yes).
2. Optional. For non-AMR calls, run the BSC6900 MML command SET GCELLHOEMG. In this step, set UL Qual. Threshold and DL Qual. Threshold according to the actual situation.
3. Optional. For AMR FR calls or AMR HR calls, run the BSC6900 MML command SET GCELLAMRQUL. In this step, set UL Qual. Limit for AMR FR, DL Qual. Limit for AMR FR, UL Qual. Limit for AMR HR, and DL Qual. Limit for AMR HR according to the actual situation.
4. Run the BSC6900 MML command SET GCELLHOFITPEN. In this step, set Penalty Time after BQ HO and Penalty Level after BQ HO according to the actual situation.
5. Run the BSC6900 MML command MOD G2GNCELL. In this step, set TA HO Watch Time and BQ HO Watch Time according to the actual situation.
8. Activating interference handover algorithm

1.

Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Interference HO Allowed to YES(Yes) and then set Intracell HO Allowed and Forbidden time after MAX Times according to the actual situation.
2.

Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Inter-layer HO Threshold, Interfere HO Static Time, and Interfere HO Valid Time according to the actual situation.
NOTE:

If this cell is configured with external neighboring cells, run the BSC6900 MML command MOD GEXT2GCELL to set Inter-layer HO Threshold according to the actual situation.
3. Run the BSC6900 MML command MOD G2GNCELL. In this step, set Adjacent Cell Inter-layer HO Hysteresis according to the actual situation.
4. Run the BSC6900 MML command SET GCELLAMRQUL. In this step, set Interfere HO Qual. Thresh 1 for Non-AMR FR, Interfere HO Qual. Thresh 2 for Non-AMR FR, Interfere HO Qual. Thresh 3 for Non-AMR FR, Interfere HO Qual. Thresh 4 for Non-AMR FR, Interfere HO Qual. Thresh 5 for Non-AMR FR, Interfere HO Qual. Thresh 6 for Non-AMR FR, Interfere HO Qual. Thresh 7 for Non-AMR FR, Interfere HO Qual. Thresh 8 for Non-AMR FR, Interfere HO Qual. Thresh 9 for Non-AMR FR, Interfere HO Qual. Thresh 10 for Non-AMR FR, Interfere HO Qual. Thresh 11 for Non-AMR FR, Interfere HO Qual. Thresh 12 for Non-AMR FR, and Interfere HO Qual. Thresh Offset for AMR FR according to the actual situation.
9. Activating the no downlink measurement report handover algorithm

1. Run the BSC6900 MML command SET GCELLHOEMG. In this step, set No Dl Mr.HO Allowed to YES(Yes) and then set UL Qual. Limit for AMR FR, UL Qual. Limit for AMR HR, and Cons.No Dl Mr.HO Allowed Limit according to the actual situation.
2. Run the BSC6900 MML command SET GCELLHOFITPEN. In this step, set Filter Length for TCH Qual. and Filter Length for SDCCH Qual. according to the actual situation.
3. Run the BSC6900 MML command MOD G2GNCELL. In this step, set UL BQ HO Static Time and UL BQ HO Last Time according to the actual situation.
10. Activating the enhanced dual-band network handover algorithm

1. Run the BSC6900 MML command MOD GCELL. In this step, set Cell IUO Type to EDB_cell(Enhanced Double Frequency Cell) and then set Cell Inner/Extra Property, Same Group Cell Index Type, Same Group Cell Index, and Same Group Cell Name according to the actual situation.
2. Run the BSC6900 MML command SET GCELLHOEDBPARA. In this step, set Load HO Allowed, UL Subcell General Overload Threshold, Inner Cell Serious OverLoad Thred, Subcell HO Allowed Flow Control Level, Incoming OL Subcell HO Level TH, UL Subcell Serious Overload Threshold, UL Subcell Load Hierarchical HO Periods, MOD Step LEN of UL Load HO Period, Step Length of UL Subcell Load HO, UL Subcell Lower Load Threshold, Subcell HO Allowed Flow Control Level, Outgoing OL Subcell HO Level TH, OL Subcell Load Diversity HO Period, Step Length of OL Subcell Load HO, Distance Between Boundaries of Subcells, and Distance Hysteresis Between Boundaries according to the actual situation.
11. Activating the edge handover algorithm

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Load Handover Support to YES(Yes) and then set Inter-layer HO Threshold, Edge HO DL RX_LEV Threshold, Handover Algorithm II Edge HO Watch Time, and Handover Algorithm II Edge HO Valid Time.
2. Run the BSC6900 MML command MOD G2GNCELL. In this step, set Inter-cell HO Hysteresis, Edge HO AdjCell Watch Time, and Edge HO AdjCell Valid Time according to the actual situation.
12. Activating the fast-moving micro cell handover algorithm

1.

Run the BSC6900 MML command SET GCELLBASICPARA. In this step, set Layer of The Cell according to the actual situation.
NOTE:

If this cell is configured with external 2G neighboring cells, run the BSC6900 MML command MOD GEXT2GCELL to set Layer of The Cell according to the actual situation.
2. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set MS Fast Moving HO Allowed to YES(Yes).
3.

Run the BSC6900 MML command SET GCELLHOAD. In this step, set MS Fast-moving Time Threshold, MS Fast-moving Watch Cells, MS Fast-moving Valid Cells, Penalty Time on Fast Moving HO, and Penalty on MS Fast Moving HO according to the actual situation.
NOTE:

If this cell is configured with external 2G neighboring cells, run the BSC6900 MML command MOD GEXT2GCELL to set Penalty Time on Fast Moving HO and Penalty on MS Fast Moving HO.
4. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Inter-layer HO Threshold according to the actual situation.
NOTE:

If this cell is configured with external neighboring cells, run the BSC6900 MML command MOD GEXT2GCELL to set Inter-layer HO Threshold according to the actual situation.
5. Run the BSC6900 MML command MOD G2GNCELL. In this step, set Adjacent Cell Inter-layer HO Hysteresis, HCS HO Watch Time, and HCS HO Valid Time according to the actual situation.
13. Activating the better cell handover algorithm

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Better Cell Handover Enable to YES(Yes) and then set Pathloss Ho. Enable according to the actual situation.
2. Run the BSC6900 MML command MOD G2GNCELL. In this step, set Better Cell HO Watch Time and Better Cell HO Valid Time according to the actual situation.
14. Activating the algorithm for the handover between TCHF and TCHH

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set AMR F-H Ho Allowed to YES(Yes), Allow AMR H-F Quality-based HO to YES(Yes), Non-AMR F-H Ho Allowed to YES(Yes), and Allow Non-AMR H-F Quality-based HO to YES(Yes). Then, set AMR F-H Traffic Threshold, F-H Ho Duration, F-H Ho Period, AMR F-H Ho Pathloss Adjust Step, AMR F-H Ho ATCB Adjust Step, AMR F-H Ho Pathloss Threshold, F-H Pathloss Offset Overlay, AMR F-H Ho ATCB Threshold, F-H ATCB Offset Overlay, AMR F-H Ho Qual. Threshold, F-H Ho Stat. Time, F-H Ho Last Time, AMR H-F Traffic Threshold, H-F Ho Duration, AMR H-F Ho ATCB Threshold, H-F ATCB Offset Overlay, AMR H-F Ho Pathloss Threshold, H-F Pathloss Offset Overlay, AMR H-F Ho Qual. Threshold, H-F Ho Stat. Time, H-F Ho Last Time, Non-AMR F-H Traffic Threshold, Non-AMR F-H Ho Pathloss Adjust Step, Non-AMR F-H Ho ATCB Adjust Step, Non-AMR F-H Ho Pathloss Threshold, Non-AMR F-H Ho ATCB Threshold, Non-AMR F-H Ho Qual. Threshold, Non-AMR H-F Traffic Threshold, Non-AMR H-F Ho ATCB Threshold, Non-AMR H-F Ho Pathloss Threshold, and Non-AMR H-F Ho Qual. Threshold according to the actual situation.
2. Run the BSC6900 MML command SET GTRXDEV. In this step, set TCH Rate Adjust Allow to YES(Yes).
3. Run the BSC6900 MML command SET GCELLCCACCESS. In this step, set Speech Version to at least FULL_RATE_VER3 and HALF_RATE_VER3.
4. Run the BSC6900 MML command SET BSCBASIC. In this step, set A Interface Tag to GSM_PHASE_2Plus.
15. Activating the SDCCH handover algorithm

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set SDCCH HO Allowed to YES(Yes).
2. Run the BSC6900 MML command SET GCELLHOCTRL. In this step, set Inter-BSC SDCCH HO ALLowed according to the actual situation.
* Verification Procedure
1. Run the BSC6900 MML command LST GCELLHOBASIC to check the value of Current HO Control Algorithm.
The expected result: The value of Current HO Control Algorithm is HOALGORITHM2(Handover algorithm II).
2. On the LMT, start the message tracing over the A interface by referring to Tracing Messages on the A Interface. Select BSSAP in the Trace Type area.
The expected result: The BSC sends a Handover performed message to the MSC.
o In the case of a quick handover, the handover cause value is better-cell.
o In the case of a TA handover, the handover cause value is distance.
o In the case of a BQ handover, the handover cause value is uplink-quality or downlink-quality.
o In the case of an interference handover, the handover cause value is uplink-quality or downlink-quality.
o In the case of a no downlink measurement report handover, the handover cause value is uplink-quality.
o In the case of an enhanced dual-band network handover, the handover cause value is better-cell or traffic.
o In the case of a load handover, the handover cause value is traffic.
o In the case of an edge handover, the handover cause value is uplink-strength or downlink-strength.
o In the case of a fast-moving micro cell handover, the handover cause value is better-cell.
o In the case of a better cell handover, the handover cause value is better-cell.
o In the case of a handover between TCHF and TCHH, the handover cause value is downlink-quality.
o In the case of an SDCCH handover, the handover cause value is better-cell, distance, uplink-quality, downlink-quality, traffic, uplink-strength, or downlink-strength.
* Deactivation Procedure

1. Run the BSC6900 MML command SET GCELLHOBASIC. In this step, set Current HO Control Algorithm to HOALGORITHM1(Handover algorithm I).