NOKIA-VOLTE教程50160425

NOKIA TD-LTE VoLTE无线参数设置手册

1 简介

本文为NOKIA TD-LTE设备无线侧VoLTE参数设置指导手册。

2 VoLTE无线参数设置指导

2.1 VoLTE Call

o 基站支持VoLTE Call只需要打开actConvVoice这个参数即可，现网这个参数已经打开了，并且已

更新到开站模板里，所以开启Volte功能时，不用修改此参数。

图2-1actConvVoice设置

o VoLTE Call（audio）使用QCI=1的专用承载，需要同时确认QCI=1支持和Qos配置。

图2-2 QCI=1设置

表2-1 VoLTE Call参数列表

参数级别 参数意义 This parameter activates the support of Activate the conversational voice bearer. The support of actConvVoice change becomes active for a cell after conversational the next cell locking/cell unlocking voice bearer sequence. This parameter specifies the maximum value of the GBR in the downlink Maximum direction. qciTab1 maxGbrDl GBR downlink eNB will reject those EPS bearers with QCI1 for which the GBR in downlink direction is greater than this value. This parameter specifies the maximum value of the GBR in the uplink direction. Maximum qciTab1 maxGbrUl eNB will reject those EPS bearers with GBR uplink QCI1 for which the GBR in uplink direction is greater than this value. The Resource Type indicates whether bearer is a GBR or NON-GBR bearer.The Resource Type determines QCI support qciTab1 qciSupp if dedicated network resources related to a service or bearer level Guaranteed Bit Rate (GBR) value are permanently allocated. 参数名 Remark 参数缩写 推荐值 LNBTS TRUE LNBTS 144 LNBTS 144 LNBTS enable

2.2 VoLTE Call

o VoLTE Call需要同时建立QCI=1和QCI=2的承载（语音1，图像2）。因此需要在LNBTS中打开

actEnhAcAndGbrServices、actmultGbrbearers和actMultBearers，现网这3个参数已经打开了，并且已更新到开站模板里，所以开启Volte功能时，不用修改这些参数。

图2-3 VoLTE Call参数设置

o QCI=2支持和Qos配置

图2-4 QCI=2参数设置

表2-2 VoLTE Call参数列表

参数级别 参数名 Remark 参数缩写 参数意义 推荐值

This parameter activates support of the following featuresARP based Admission Control (LTE534), Smart Admission Control, comprising RAC and TAC (LTE497) andEPS bearers with QCI 2, 3 and 4 (LTE496).Feature LTE496 introduces support of QCI 2, 3, and 4 along with higher guaranteed bit rates and related congestion detection and handling mechanisms.Admission control functionality (LTE497) is extended at the same time from a counter based solution to become load based and offer in addition congestion handling functionality to better address the needs being imposed by higher guaranteed bit rates.Finally the ARP based admission control (LTE534) allows to consider the ARP priority in

load-based admission and admission related pre-emption as well as in congestion handling as an

additional more service-related dimension for differentiated treatment of bearers with guaranteed resources.As those features are closely inter-related, they are activated via a common activation parameter. his parameter activates the support of multiple GBR

EPS Bearers.

LNBTS

Activate enhanced AC and GBR services

actEnhAcAnd GbrServices

TRUE

LNBTS

LNBTS

LNBTS

Activate multiple GBR bearers Activate multiple bearers Maximum GBR downlin

k Maximum GBR uplink QCI support

actmultGbrbearers

TRUE

actMultBearers This parameter activates the support of multiple EPS

Bearers. TRUE

qciTab2

maxGbrDl maxGbrUl

LNBTS qciTab2

LNBTS qciTab2 qciSupp

This parameter specifies the maximum value of the

GBR in the downlink direction.

2048

eNB will reject those EPS bearers with QCI2 for which the GBR in downlink direction is greater than this value. This parameter specifies the maximum value of the

GBR in the uplink direction.

2048

eNB will reject those EPS bearers with QCI2 for which the GBR in uplink direction is greater than this value. The Resource Type indicates whether bearer is a GBR or NON-GBR bearer.The Resource Type determines if

enab

dedicated network resources related to a service or

le

bearer level Guaranteed Bit Rate (GBR) value are

permanently allocated.

2.3 SRVCC（eSRVCC）设置

o SRVCC和eSRVCC从基站侧看无区别，只需要打开actSrvccToGsm，并进行邻区和切换参数设置

即可。具体设置如下

2.3.1 LNBTS部分

? LNBTS：设置actSrvccToGsm=true

图2-5 SRVCC切换开关

? 添加LNADJG：按照GSM邻区的的实际情况进行设置

图2-6 LNADJG设置1

图2-1 LNADJG设置2

2.3.2 LNCEL部分

? LNCELL中添加LNHOG

LNHOG中的两个门限值, 需要根据实际网络情况调整大小。前期功能测试可以适当调整使得 event B2 容易触发. 如将Threshold1 GERAN for RSRP of servinig cell 调大,这样就不用移动到LTE小区的边缘才触发eSRVCC. 这个门限值和其他参数有依赖关系.在调整时,如果不合适, site manager 会给出提示。

NCC permitted 需要设置为true

图2-8 LNHOG设置1

配置2G 邻区的频点，2G的频点依据基站现有的重定向频点来配置。

图2-2 LNHOG设置2

? LNCELL中添加LNRELG

LNRELG现网已配置，不用在配置。（设置SRVCC为 allowed）

图2-3LNRELG设置1

图2-4 LNRELG设置2

表2-1 SRVCC切换参数列表

参数级别 LNBTS 参数名 Activate SRVCC to GSM Activate SRVCC to GSM ARFCN value list Cell identity Location Area Code Remark 参数缩写 actSrvccToGsm 参数意义 This parameter enables the feature SRVCC from LTE to GSM 推荐值 TRUE LNBTS actSrvccToGsm arfcnValueListGERAN This parameter enables the feature SRVCC from LTE to GSM true LNHOG Explicit List of ARFCNs Cell Identity of GERAN neighbor cell which is part of the GERAN Cell Global Identifier (CGI) of the related neighbor cell. LAC of GERAN neighbor cell which is part of the GERAN Cell Global Identifier (CGI) of the related neighbor cell. LNRELG ci LNRELG LAC

Single radio voice call continuity allowed ARFCN value Geran BasestationColour Code CI Geran LAC Geran MCC Geran MNC Geran MNC Length Geran Network Colour Code RAC Geran LNRELG srvccAllowed The parameter controls whether SRVCC handover to the related neighbor cell is allowed LNADJG arfcnValueGeran ARFCN Value of the GERAN neighbour cell.(Part of CarrierFrequency) LNADJG basestationColourCode BaseStationColour Code of GERAN neighbour cell,(Part of PhysicalCellId) LNADJG gTargetCi Cell Identity of GERAN neighbor cell(Part of GERAN global cell ID; CGI) LNADJG gTargetLac LAC of GERAN neighbour cell LNADJG mcc Mobile Country Code included in the PLMN ID of the GERAN neighbour cell Mobile Network Code included in the PLMN ID of the GERAN neighbour cell Length of Mobile Network Code included in the PLMN ID of the GERAN neighbour cell Network Colour Code of GERAN neighbour cell (Part of PhysicalCellId) Routing Areas Code (RAC) of GERAN neighbor cell. LNADJG Mnc LNADJG mncLength LNADJG networkColourCode LNADJG gTargetRac

2.4 ROHC参数

表2-2 ROHC

参数级别 参数名 Activate PDCP robust header compression Remark 参数缩写 参数意义 推荐值 LNBTS This parameter activates the usage actPdcpRohc of PDCP Robust Header Compression. true

3 关闭基站的Volte功能相对应的参数修改

3.1 VoLTE无线参数设置指导VoLTE Call

o 基站要关闭VoLTE Call，只需要关闭actConvVoice这个参数即可。

图3-5actConvVoice设置

表3-3VoLTE Call参数列表

参数级别 参数名 Remark 参数缩写 参数意义 推荐值 LNBTS Activate support of conversational voice bearer This parameter activates the support of the conversational voice bearer. The actConvVoice change becomes active for a cell after FALSE the next cell locking/cell unlocking sequence. 3.2 VoLTE Call

o 基站要关闭VoLTE Call，只需要在LNBTS中关闭开actEnhAcAndGbrServices、actmultGbrbearers

和actMultBearers这三个参数即可（即从”ture“改成”false”）。

图6-2VoLTE Call参数设置

表3-4VoLTE Call参数列表

参数级别 参数名 Remark 参数缩写 actEnhAcAnd GbrServices 参数意义 推荐值 LNBTS Activate enhanced AC and GBR services LNBTS LNBTS Activate multiple GBR bearers Activate multiple bearers actmultGbrbearers actMultBearers This parameter activates support of the following features ARP based Admission Control (LTE534), Smart Admission Control, comprising RAC and TAC (LTE497) and EPS bearers with QCI 2, 3 and 4(LTE496).Feature LTE496 introduces support of QCI 2, 3, and 4 along with higher guaranteed bit rates and related congestion detection and handling mechanisms.Admission control functionality (LTE497) is extended at the same time from a counter based solution to become load based and offer in addition congestion handling functionality to better address FALSE the needs being imposed by higher guaranteed bit rates.Finally the ARP based admission control (LTE534) allows to consider the ARP priority in load-based admission and admission related pre-emption as well as in congestion handling as an additional more service-related dimension for differentiated treatment of bearers with guaranteed resources.As those features are closely inter-related, they are activated via a common activation parameter. his parameter activates the support of multiple GBR EPS Bearers. This parameter activates the support of multiple EPS Bearers. FALSE FALSE 3.3 SRVCC（eSRVCC）设置

o 基站要关闭VoLTE Call，SRVCC和eSRVCC从基站侧看无区别，只需要关闭actSrvccToGsm这个参数

即可。具体设置如下

LNBTS部分LNBTS：设置actSrvccToGsm=false

图3-3 SRVCC切换开关

表3-5 SRVCC切换参数列表

参数级别 参数名 Activate SRVCC to GSM Remark 参数缩写 参数意义 This parameter enables the feature SRVCC from LTE to GSM 推荐值 LNBTS actSrvccToGsm FALSE 3.4 ROHC参数

表3-6 ROHC

参数级别 参数名 Remark 参数缩写 参数意义 推荐值 LNBTS Activate PDCP robust header compression This parameter activates the actPdcpRohc usage of PDCP Robust Header FALSE Compression.

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