ubuntu 16.04系统LimeSDR使用OpenAirInterface搭建LTE实验环境 转载https://www.mobibrw.com/2018/10729/comment-page-1
ubuntu 16.04系统LimeSDR V1.4使用OpenAirInterface搭建LTE实验环境 操作系统调整 参考ubuntu 16.04低延迟内核安装低延时内核CPU调整为最大性能模式,并且不允许降低频率
$ sudo apt-get install cpufrequtils $ sudo touch /etc/default/cpufrequtils $ sudo sed -i "/GOVERNOR.*/d" /etc/default/cpufrequtils $ test -s /etc/default/cpufrequtils && sudo sed -i '$a\GOVERNOR="performance"' /etc/default/cpufrequtils || echo "GOVERNOR="performance"" | sudo tee /etc/default/cpufrequtils $ sudo update-rc.d ondemand disable $ sudo reboot
安装依赖包 $ sudo apt-get install cmake g++ libpython-dev python-numpy swig git libsqlite3-dev libi2c-dev libusb-1.0-0-dev libwxgtk3.0-dev freeglut3-dev
编译安装SoapySDR
$ cd ~
$ git clone https://github.com/pothosware/SoapySDR.git
$ cd SoapySDR
$ git pull origin master
$ mkdir build && cd build
$ cmake ..
$ make -j4
$ sudo make install
$ sudo ldconfig
编译安装LimeSDR
$ cd ~
$ git clone https://github.com/myriadrf/LimeSuite.git
$ cd LimeSuite
#目前的测试发现，超过这个版本的代码无法正常的发出信号， #也就是手机搜索不到我们创建好的基站， #反复研究，确认是“Commit 9883bb97 by ignasj, 2017-06-30 下午04:20” #对于“lms7_device.cpp”的修改导致的问题，原因为天线发射增益设置不正确 #解决方法参考 https://www.mobibrw.com/?p=11957 #截止目前2018.09.03版本的代码貌似已经修正这个问题了，应该已经可以正常使用了。 #测试来说，还是使用这个版本吧
$ git checkout v17.06.0
$ mkdir build ; cd build
$ cmake ..
$ make -j4
$ sudo make install
$ sudo ldconfig
$ cd ../udev-rules/
$ sudo bash install.sh
$ sudo LimeUtil --update
#固件下载地址 http://downloads.myriadrf.org/project/limesuite/ #如果上述的固件无法下载，可以从此处下载一份拷贝 #https://www.mobibrw.com/wp-content/uploads/2018/03/17.06-LimeUtils-fpga-fw.zip
编译安装USRP驱动 $ sudo apt-get install libboost-all-dev libusb-1.0-0-dev python-mako doxygen python-docutils python-requests cmake build-essential
$ cd ~
$ git clone git://github.com/EttusResearch/uhd.git
$ cd uhd; mkdir host/build; cd host/build
$ cmake -DCMAKE_INSTALL_PREFIX=/usr ..
$ make -j4
$ sudo make install
$ sudo ldconfig
#下面脚本的作用是到http://files.ettus.com/binaries/images/下载最新的镜像文件，并解压缩到 /usr/share/uhd/images目录下
$ sudo /usr/lib/uhd/utils/uhd_images_downloader.py
#如果上面的镜像下载失败，可以尝试执行如下命令从本站下载
cd ~ ; wget https://www.mobibrw.com/wp-content/uploads/2018/03/uhd-images_003.010.003.000-release.zip
下载并解压缩需要的补丁 https://www.mobibrw.com/wp-content/uploads/2018/03/opencells-mods-20170710.tgz $ cd ~
$ wget https://www.mobibrw.com/wp-content/uploads/2018/03/opencells-mods-20170710.tgz
$ tar xf opencells-mods-20170710.tgz
下载并编译eNB
$ cd ~
$ git clone https://gitlab.eurecom.fr/oai/openairinterface5g.git
$ cd openairinterface5g
$ git checkout develop
#目前的补丁程序只在这个版本上是有效的，后续版本会补丁失败 $ git checkout 08b8b3142df16831396a5283a015564ff56bf91c -b ubuntu16
#应用补丁 $ git apply ../opencells-mods/eNB.patch
#对于国内的用户来说，国外的几个代码地址需要修改一下，否则会出现无法下载或者下载非常慢的情况 $ sed -i "s/git clone https://gist.github.com/2190472.git /opt/ssh/wget https://www.mobibrw.com/wp-content/uploads/2018/03/ssh.tar.gz && sudo tar -zxvf ssh.tar.gz -C /opt/g" cmake_targets/tools/build_helper
$ sed -i "s/git clone https://gitlab.eurecom.fr/oai/asn1c.git /tmp/asn1c/wget https://www.mobibrw.com/wp-content/uploads/2018/03/asn1c.tar.gz && tar -zxvf asn1c.tar.gz -C /tmp/g" cmake_targets/tools/build_helper
$ sed -i "s/https://pypi.python.org/packages/18/fa/dd13d4910aea339c0bb87d2b3838d8fd923c11869b1f6e741dbd0ff3bc00/netifaces-0.10.4.tar.gz/https://www.mobibrw.com/wp-content/uploads/2018/03/netifaces-0.10.4.tar.gz/g" cmake_targets/tools/build_helper
$ sed -i "s/https://github.com/google/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz/https://www.mobibrw.com/wp-content/uploads/2018/03/protobuf-2.6.1.tar.gz/g" cmake_targets/tools/build_helper
$ sed -i "s/git clone https://github.com/protobuf-c/protobuf-c.git/wget https://www.mobibrw.com/wp-content/uploads/2018/03/protobuf-c.tar.gz && tar -zxvf protobuf-c.tar.gz/g" cmake_targets/tools/build_helper
$ sed -i "s/http://mirrors.dotsrc.org/gcrypt/gnutls/v3.1/gnutls-3.1.23.tar.xz/https://www.mobibrw.com/wp-content/uploads/2018/03/gnutls-3.1.23.tar.xz/g" cmake_targets/tools/build_helper
$ sed -i "s/https://ftp.gnu.org/gnu/nettle/nettle-2.5.tar.gz/https://www.mobibrw.com/wp-content/uploads/2018/03/nettle-2.5.tar.gz/g" cmake_targets/tools/build_helper
#修正兼容问题，更高版本的protobuf-c跟我们上面安装的版本不匹配，会导致编译错误 $ sed -i "s/cd protobuf-c/cd protobuf-c && git checkout 2a46af42784abf86804d536f6e0122d47cfeea45/g" cmake_targets/tools/build_helper
#执行编译 $ source oaienv
$ ./cmake_targets/build_oai -I # install SW packages from internet
$ ./cmake_targets/build_oai -c -w LMSSDR --eNB 下载并编译EPC(核心网）
$ git clone https://gitlab.eurecom.fr/oai/openair-cn.git
$ cd openair-cn
$ git checkout develop
$ git checkout 724542d0b59797b010af8c5df15af7f669c1e838 -b ubuntu16
#应用补丁 $ git apply ../opencells-mods/EPC.patch
#对于国内的用户来说，国外的几个代码地址需要修改一下，否则会出现无法下载或者下载非常慢的情况 $ sed -i "s/git clone https://gitlab.eurecom.fr/oai/freediameter.git -b eurecom-1.2.0/wget https://www.mobibrw.com/wp-content/uploads/2018/03/freediameter.tar.gz && tar -zxvf freediameter.tar.gz && cd freediameter && git checkout eurecom-1.2.0 && cd ../g" build/tools/build_helper
$ source oaienv; cd scripts
#安装依赖的软件，库 $ ./build_hss -i
#对于国内的用户来说，国外的几个代码地址需要修改一下，否则会出现无法下载或者下载非常慢的情况 $ sed -i "s/git clone git://git.osmocom.org/libgtpnl/wget https://www.mobibrw.com/wp-content/uploads/2018/03/libgtpnl.tar.gz && tar -zxvf libgtpnl.tar.gz/g" ../build/tools/build_helper
#Install 3PP SW for mme and spgw $ ./build_mme -i
$ ./build_spgw -i
#调整mme的编译模板，默认情况下mme编译出来的是Debug版本， #但是这会触发"src/gtpv2-c/nwgtpv2c-0.11/src/NwGtpv2c.c"的断言异常 #”mme: ~/openair-cn/src/gtpv2-c/nwgtpv2c-0.11/src/NwGtpv2c.c:487: nwGtpv2cCreateLocalTunnel: Assertion `0' failed.“ #这个断言异常并不是大问题，直接无视即可 #因此我们把此处的编译调整为RelWithDebInfo $ sed -i "s/"Debug"/"RelWithDebInfo"/g" ../build/mme/CMakeLists.template
#修正代码里面的几处问题 $ sed -i "s/while 0/while (0)/g" ../src/utils/log.h
$ sed -i 's/char[ \t]*pid_dec[32]/char pid_dec[128]/g' ../src/utils/pid_file.c
#正式进行编译操作 $ ./build_hss -c -v
$ ./build_mme -v
$ ./build_spgw -v
配置EPC
$ cd ~
$ sudo mkdir -p /usr/local/etc/oai
$ sudo cp -rp opencells-mods/config_epc/* /usr/local/etc/oai
$ cd openair-cn; source oaienv; cd scripts
$ ./check_hss_s6a_certificate /usr/local/etc/oai/freeDiameter hss.OpenAir5G.Alliance
$ ./check_mme_s6a_certificate /usr/local/etc/oai/freeDiameter mme.OpenAir5G.Alliance
$ sudo sed -i "s/PGW_INTERFACE_NAME_FOR_SGI.*/PGW_INTERFACE_NAME_FOR_SGI = "ifconfig | grep "Link" | awk '{print $1}' | grep "en"";/g" /usr/local/etc/oai/spgw.conf
$ sudo sed -i "s/^MYSQL_pass.*/MYSQL_pass = "123"/g" /usr/local/etc/oai/hss.conf
#导入数据库，建立表结构 $ ./hss_db_import 127.0.0.1 root 123 oai_db ~/opencells-mods/opencells_db.sql
修改我们UE需要使用的配置文件 $ cd ~
$ cd openairinterface5g; source oaienv
#配置文件为"targets/PROJECTS/GENERIC-LTE-EPC/CONF/"目录下的包含lmssdr的配置文件 $ sed -i "s/mobile_network_code.*/mobile_network_code = "92";/g" ./targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.25PRB.lmssdr.conf
$ vim ./targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.25PRB.lmssdr.conf
找到： ////////// MME parameters: mme_ip_address = ( { ipv4 = "192.168.12.148"; ipv6 = "192:168:30::17"; active = "yes"; preference = "ipv4"; } );
NETWORK_INTERFACES : { ENB_INTERFACE_NAME_FOR_S1_MME = "eth0"; ENB_IPV4_ADDRESS_FOR_S1_MME = "192.168.12.150/24";
ENB_INTERFACE_NAME_FOR_S1U = "eth0";
ENB_IPV4_ADDRESS_FOR_S1U = "192.168.12.150/24";
ENB_PORT_FOR_S1U = 2152; # Spec 2152
};
替换为： ////////// MME parameters: mme_ip_address = ( { ipv4 = "127.0.0.20"; ipv6 = "192:168:30::17"; active = "yes"; preference = "ipv4"; } );
NETWORK_INTERFACES : { ENB_INTERFACE_NAME_FOR_S1_MME = "lo"; ENB_IPV4_ADDRESS_FOR_S1_MME = "127.0.0.10/8";
ENB_INTERFACE_NAME_FOR_S1U = "lo";
ENB_IPV4_ADDRESS_FOR_S1U = "127.0.0.10/8";
ENB_PORT_FOR_S1U = 2152; # Spec 2152
}; 测试功能，按照顺序打开四个独立Shell
$ echo -ne "\033]0;HSS\007"
$ cd ~
$ cd openair-cn; source oaienv; cd scripts;
#貌似需要运行之前先清理一下数据库才行，否则可能导致设备无法入网，应该是个BUG $ ./hss_db_import 127.0.0.1 root 123 oai_db ~/opencells-mods/opencells_db.sql
$ ./run_hss
$ echo -ne "\033]0;MME\007"
$ cd ~
$ cd openair-cn; source oaienv; cd scripts;
$ ./run_mme
run_spgw.shShell $ echo -ne "\033]0;SPGW\007"
$ cd ~
$ cd openair-cn; source oaienv; cd scripts;
$ sudo -E ./run_spgw
$ echo -ne "\033]0;SPGW\007" $ echo -ne "\033]0;EUE\007"
$ cd ~
$ cd openairinterface5g; source oaienv
#配置文件为"targets/PROJECTS/GENERIC-LTE-EPC/CONF/"目录下的包含lmssdr的配置文件 #这个配置文件跟天线的接入方式直接相关，天线接入的是主板上的RX1_H,TX1_2这两个天线接口 #最后的-d 参数是启动图形界面分析流量
$ sudo -E ./cmake_targets/lte_build_oai/build/lte-softmodem -O ./targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.25PRB.lmssdr.conf --rf-config-file ./targets/ARCH/LMSSDR/LimeSDR_above_1p8GHz_1v4.ini -d
#如果启动之后，出现 “[PHY][E]TX : Timeout (sent 6800/7680)” 这样的红色内容，然后退出，可以多尝试几次，一般就可以恢复正常了 $ cd ~
$ cd openair-cn; source oaienv; cd scripts;
$ sudo -E ./run_spgw
优先检查设备的MTU，如果设备的MTU大小超过1500,则会导致这种问题，/usr/local/etc/oai/spgw.conf里面配置的MTU大小就是1500，这个大小可以设置为1536，但是貌似会导致应用异常。 目前已知的是小米Note1会记录上次联网时候设备的MTU大小，如果恰好连接过MTU是1536的基站，貌似会使用这个数字，导致问题。 一般建议Android手机执行adb shell ifconfig观察一下手机的输出。APN协议，APN漫游协议，承载系统，这三个要设置，否则MME会崩溃（src/nas/emm/sap/emm_cn.c:358 空指针异常），主要是协议不支持，导致处理异常。正常情况下，已经自动设置了MCC，MNC，如果没有自动设置，请手工修改成MCC 208，MNC 92。