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