The 4th set of questions for the 2023 National Vocational College Skills Competition GZ035 5G Networking and Operation and Maintenance (Higher Vocational Group)

Table of contents

1. Competition Notice

1. Competition content distribution

2. Competition duration

3. Precautions for competition

4. Submission of competition results

2. Competition module

Competition Module 1--5G Public Network Planning, Deployment and Opening (35 points)

Subtask 1: 5G public network deployment and commissioning (15 points)

1. Task background

2. Mission requirements

3. Task planning

4. Task details

Subtask 2: 5G indoor and outdoor site construction (20 points)

1. Task background

2. Mission requirements

3. Task planning

4. Task details

Competition Module 2--5G Public Network Operation, Maintenance and Optimization (35 points)

1. Task background

2. Mission requirements

3. Task planning

4. Task details

Competition module 3--5G private network networking and operation and maintenance (25 points)

1. Task background

2. Mission requirements

3. Task planning

4. Task details


1. Competition Notice

1. Competition content distribution

  • Competition Module 1--5G Public Network Planning, Deployment and Opening (35 points)

Subtask 1: 5G public network deployment and commissioning (15 points)

Subtask 2: 5G indoor and outdoor site construction (20 points)

  • Competition Module 2--5G Public Network Operation, Maintenance and Optimization (35 points)
  • Competition module 3--5G private network networking and operation and maintenance (25 points)
  • Professionalism (5 points)

2. Competition duration

The duration of the competition is 1.5 days, totaling 8 hours.

3. Precautions for competition

(1) The mission statement has 29 pages in total. If there are problems such as missing pages or illegible handwriting, please apply to the referee for a replacement mission statement in time.

(2) The hardware, software and auxiliary tools required for the competition shall be uniformly arranged by the organizing committee. Contestants are not allowed to bring any software, mobile storage, auxiliary tools, mobile communication equipment, etc. into the arena without permission.

(3) Information related to identity such as school and name must not appear in the materials submitted by contestants, otherwise the results will be invalid.

(4) After the game is over, all the computers will keep running. Do not turn off the computers at will. Please keep the competition equipment, software and test questions on your seat, and it is forbidden to take all items used in the competition (including test papers and draft paper) out of the competition venue.

(5) The referees will use the results submitted by the team captains as the main basis for scoring. Before the end of the game, complete the operations required by the task book.

(6) The participating teams need to complete the corresponding business tests according to the requirements in the task book, such as registration, session, networking, switching, reselection, roaming, slice application, etc. If you complete the test items that are not required by the mission statement, you will not be awarded points.

(7) In 5G public network deployment and debugging, 5G public network operation and maintenance and optimization, O, P, and Q represent city names, O_1, P_1, Q_1, etc. represent test points in the city, and Q_1→Q_2→Q_3→Q_4 represent testing Routes, O1, P1, Q1, etc. represent test plots. In the 5G private network networking and operation and maintenance tasks, A, B, C, and D are the areas in the scene, and A1, B1, C1, and D1 represent the test points in each area. In the 5G indoor and outdoor site construction tasks, all existing configurations and data are configured according to the actual project configuration, and the original network planning and data cannot be changed. Automatic monitoring has been set up for the competition, and 1 point will be deducted for any modification of the original configuration data until the until the total points of each task are deducted.

(8) The total score of each competition content is the total score of the participating teams, and the rankings are ranked from high to low according to the total score. If the total scores are the same, the competition modules will be ranked from high to low according to the difficulty of the content of the competition modules, and ranked in order of the scores of each module of 5G private network networking and operation and maintenance, 5G public network operation and maintenance and optimization, and 5G public network planning and deployment and opening.

4. Submission of competition results

(1) 5G public network deployment and commissioning sub-tasks, complete the network planning calculation and commissioning related operations according to the task requirements, and fill in the network planning calculation results on the paper answer sheet.

(2) For the 5G indoor and outdoor site sub-tasks, according to the task requirements, the captain account will complete the site survey, scheme design, project budget, project implementation, and project acceptance tasks in the corresponding competition unit and click the submit button to submit the results.

(3) For 5G public network operation and optimization tasks, complete network performance fault handling and service quality optimization related operations according to the task requirements, and the captain account will fill in the fault code on the troubleshooting tab of the web page and submit it. Team members’ submissions are invalid.

  (4) For 5G private network networking and operation and maintenance tasks, complete the 5G private network planning and commissioning work in the corresponding competition unit according to the task requirements, and click the submit task button of each functional module to submit each module for scoring.

2. Competition module

Competition Module 1--5G Public Network Planning, Deployment and Opening (3 5 points)

Subtask 1: 5G public network deployment and commissioning (1 5 points)

1. Task background

As 5G enters a critical period of large-scale application development, the amplification, superposition, and multiplication effects of 5G on economic and social development are gradually emerging. According to the statistics of relevant departments, it is estimated that in 2022, 5G will directly drive the total economic output of 1.45 trillion yuan, directly drive the economic added value of about 392.9 billion yuan, an increase of 12% and 31% respectively compared with 2021, and indirectly drive the total output of about 34,900 yuan. 100 million yuan, indirectly driving the economic added value of about 1.27 trillion yuan. Economic development is inseparable from infrastructure construction. For this reason, domestic operators continue to promote 5G network construction. Operators in O City, P City, and Q City need to obtain information such as urban economic development and population based on the network capacity planning model for 5G network planning. As operators, 5G engineers should provide planning data according to task requirements, and improve existing Network configuration, to ensure smooth network debugging and opening, to achieve normal business operation.

2. Mission requirements

Reasonable network planning is an important prerequisite for the construction of mobile communication networks. After the previous data collection and analysis, the traffic models of O City, P City, and Q City have been calculated. Please complete the network planning of the three cities based on the existing model data. And according to the task background requirements of each city, complete the deployment of different computer room equipment and site data configuration in each city to ensure that the site meets the network access requirements. The specific operating specifications and task requirements are as follows:

1) Existing equipment, connections, and parameters in the three cities cannot be modified (automatic monitoring has been set up for the event, and 1 point will be deducted for any modification to the original configuration data until the total points for this item are deducted). The three cities adopt NSA or SA networking mode, covering Option  3x and Option 2. Among them, city Q has not deployed a core network computer room.

2) The wireless network of the three cities adopts the CU and DU combined or separated deployment mode. The design of the bearer network must meet the requirements of the carrier's network architecture design. The network layer is divided into the access layer, the regional aggregation layer, the backbone aggregation layer, and the core layer to achieve service convergence step by step. Ring networking must be adopted between devices at all levels of the bearer network to implement redundant protection of services. In addition, equipment deployment and data configuration must be completed according to network planning and design. The planning requirements for the bearer network, wireless network, and core network are as follows:

 (1) Wireless network configuration requirements

The frequency point, power, and PRACH of the cell in the base station must be configured according to the network plan, and 0.1 points will be deducted for each error.

(2) Bearer network configuration requirements

① Plan and configure according to the existing parameter configuration of the bearer network, and complete all IP connections of the bearer network. For each missing one, 0.1 points will be deducted, and for each existing parameter changed or deleted, 1 point will be deducted.

②Plan and configure according to the existing parameter configuration of the bearer network, and complete all FlexE interconnection configurations in the SPN equipment of the bearer network. For each missing one, 0.1 points will be deducted, and for each original parameter changed or deleted, 1 point will be deducted.

③ According to the existing equipment configuration and parameters of the bearer network, complete all frequency configurations in the OTN equipment of the bearer network. For each missing one, 0.1 points will be deducted, and for each original parameter changed or deleted, 1 point will be deducted.

  • Core Network Configuration Requirements

① Plan and configure according to the existing parameter configuration of the core network, and complete the interface IP configuration of all network elements in the core network. For each missing one, 0.1 points will be deducted, and for each existing parameter changed or deleted, 1 point will be deducted.

②Plan and configure according to the existing parameter configuration of the core network. For example, complete the interconnection configuration between the core network MME network element and the HSS network element in the Option 3x network, and complete the interconnection configuration between the AMF network element and the SMF network element in the Option 2 network. If one is missing, 0.1 point will be deducted, and for each existing parameter changed or deleted, 1 point will be deducted.

③According to the existing equipment configuration and parameters of the core network, complete the physical interface and logical interface configuration of the core network SW equipment. For each missing one, 0.1 points will be deducted, and for each existing parameter changed or deleted, 1 point will be deducted.

3) The planning calculation is scored according to the blank, and the calculation results of each step are rounded or rounded to the calculated value of the commercial network planning, and the corresponding answers are filled in the answer sheet.

3. Task planning

1) City O

The city has dense buildings and highly concentrated users. The total number of mobile Internet users is 9.9 million, and users of a certain operator account for 60%. The planned coverage area is 1360 square kilometers. The initial network construction plan adopts SA Option 2 networking, deploys 5G TDD wireless network, IP bearer network convergence, and access layer adopts ring topology.

In terms of wireless environment, the average building height in O City is about 30m, the street width is about 23m, the terminal height is about 1.6m, the base station height is about 33m, and the number of single base station cells is 3. The human body loss and cable loss are both 0.1dB, the shadow fading margin is 17dB, the docking gain is 17dB, the uplink interference margin is 5dB, and the downlink interference margin is 6dB. The penetration loss is related to the frequency band of each wireless cell, and the penetration loss of each frequency band is shown in Table 1.

Table 1 Penetration loss of each frequency band

frequency band (GHz)

0.7

2.6

3.5

4.9

27

37

Penetration loss (dB)

11

23

26

30

46

49

In terms of 5G terminals, the operator found through market research that users in City O mainly use the three terminals in the table below. Among them, terminal 2 accounts for more than 70%. This planning mainly considers the parameters of terminal 2, and its terminal sensitivity is -113dBm. The relevant performance parameters of each terminal are shown in Table 2.

Table 2 Performance parameters of each terminal

Terminal model

Terminal 1

Terminal 2

Terminal 3

Power (dBm)

23

26

26

Antenna gain (dBi)

0

0

0

number of antennas

2T4R

2T2R

2T4R

In terms of wireless equipment, the operator in O City has five AAU models in the following table to choose from. The performance parameters of each AAU are shown in Table 3. AAU power needs to be rounded down when converted to dBm, and the base station sensitivity is -130dBm.

Table 3 Performance parameters of each AAU

AAU model

AAU999S

AAU888S

AAU666S

AAU555S

AAU333S

Support frequency band

(MHz)

24250-27500

2515-2675

4800-5000

3400-3600

3400-3800

Power (W)

260

120

200

200

200

Antenna gain (dBi)

27

15

15

17

18

Support bandwidth configuration

(MHz)

50 /100 /200 /400

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

In terms of wireless parameters, the planned coverage area in O city is a low-speed mobile scenario. The operator plans to use the frequency points in the BAND258 frequency band to open a 5G site with a bandwidth of 200MHz. The downlink center carrier frequency of cell 1 is 2050833, and the center carrier frequency of cell 2 is downlink is 2060833, the center carrier frequency of the 3 cells is 2065833, the system subcarrier spacing is 60kHz, the DDDSU 1.25ms single cycle frame structure is adopted, the S slot symbol ratio is 5:1:1, the uplink overhead ratio is 0.15, and the downlink overhead ratio is 0.15 0.23, the maximum number of RRC users in a single cell is 640, the uplink scaling factor is 0.91, the downlink scaling factor is 0.81, the uplink and downlink coding efficiency is 0.8, the Rmax is 948/1024, the uplink rate conversion factor is 0.3, and the uplink modulation method is 256QAM. The downlink rate conversion factor is 0.38, the downlink modulation method is 256QAM, the active user online ratio is 0.12, the hotspot area expansion ratio is 1.5, and the coverage radius of the 4G cell is about 600m. PRACH parameter planning is based on the actual network configuration, referring to the contents of Attached Table 1, Attached Table 2, Attached Table 3, and Attached Table 4, and completing the relevant planning in combination with the task planning content.

In terms of bearer, the average throughput of 4G single station three sectors is 230Mbps, the average throughput of 4G MIMO single station three sectors is 800Mbps, the 4G base station bandwidth reservation ratio is 0.2, the 4G link working bandwidth ratio is 0.6, and the 5G base station bandwidth ratio is 0.2. The reservation ratio is 0.45. A single access ring can be connected to 5 5G base stations or 22 4G base stations. 6 access rings are connected to a single aggregation ring, 5 aggregation rings are connected to a single backbone aggregation point, and 5 aggregation rings are connected to a single core layer. 5 backbone convergence points, 4/5G access equipment deployment mode is 4/5G independent access ring, convergence ring bandwidth convergence ratio is 0.47, backbone convergence point bandwidth convergence ratio is 0.28, and core layer bandwidth convergence ratio is 0.28.

For the core network, the memory occupied by a single VNF is 2.2GB, the storage occupied by a single VNF is 10GB, the number of sites supported by a single AMF is 820, the number of sites supported by a single UPF is 750, the number of unconnected wireless VNFs is 14, and the memory of a single server is 128GB, and the hard disk capacity of a single server is 4500GB.

2) City P

The city has several commercial shopping centers with convenient transportation. The total number of mobile Internet users is 8.6 million, 66% of which are users of a certain operator, and the planned coverage area is 2070 square kilometers. The initial network construction plan adopts NSA Option 3x networking, deploys 5G TDD wireless network, IP bearer network convergence, and access layer adopts ring topology.

In terms of wireless environment, the average building height of P city is about 25m, the street width is about 20m, the terminal height is about 1.55m, the base station height is about 28m, and the number of single base station cells is 3. The human body loss is fixed at 0.2dB, the cable loss is fixed at 0.2dB, the shadow fading margin is 12dB, and the docking gain is 10dB. The uplink interference margin is 5dB, and the downlink interference margin is 5dB. The penetration loss is related to the frequency band of each wireless cell, and the penetration loss of each frequency band is shown in Table 4.

Table 4 Penetration loss of each frequency band

frequency band (GHz)

0.7

2.6

3.5

4.9

27

37

Penetration loss (dB)

11

23

26

30

46

49

In terms of 5G terminals, the operator found through market research that users in the city mainly use the following three types of terminals. Among them, terminal 3 accounts for more than 70%. This planning mainly considers the parameters of terminal 3, and the terminal sensitivity is -106dBm. The relevant performance parameters of each terminal are shown in Table 5. Under the NSA network, the maximum power of the terminal to access the 5G network is half of the maximum transmit power supported by the terminal, and the uplink only supports single-stream transmission.

Table 5 Performance parameters of each terminal

Terminal model

Terminal 1

Terminal 2

Terminal 3

Power (dBm)

23

26

26

Antenna gain (dBi)

0

0

0

number of antennas

2T4R

2T2R

2T4R

In terms of wireless equipment, the operator in P City has the following five AAU models to choose from. The performance parameters of each AAU are shown in Table 6. AAU power needs to be rounded down when converted to dBm, and the base station sensitivity is -118dBm.

Table 6 Performance parameters of each AAU

AAU model

AAU999H

AAU888H

AAU666H

AAU555H

AAU333H

Support frequency band (MHz)

26500-29500

2515-2675

4800-5000

3400-3600

3400-3800

Power (W)

240

80

160

200

160

Antenna gain (dBi)

18

17

18

17

18

Support bandwidth configuration (MHz)

50 /100 /200 /400

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

In terms of wireless parameters, the planned coverage area of ​​P city is a low-speed mobile scene.The operator plans to use the frequency points in the BAND79 frequency band to open a 5G site with a bandwidth of 100MHz. The downlink center carrier frequency of cell 1 is 723340, the center carrier frequency of cell 2 is 726680, and the center carrier frequency of cell 3 is 730000. The system subcarrier spacing 30kHz, using DDDDDDDSU 5ms single-cycle frame structure, S slot symbol ratio is 5:1:1, uplink overhead ratio is 0.17, downlink overhead ratio is 0.19, the maximum number of RRC users in a single cell is 740, and the uplink scaling factor is 0.92 , the downlink scaling factor is 0.83, the uplink and downlink coding efficiency is 0.76, the Rmax is 948/1024, the uplink rate conversion factor is 0.4, the uplink modulation mode is 256QAM, the downlink rate conversion factor is 0.55, the downlink modulation mode is 256QAM, activate the user online The ratio is 0.1, the expansion ratio of the hotspot area is 1.45, and the coverage radius of the 4G cell is about 550m. PRACH parameter planning is based on the actual network configuration, referring to the contents of Attached Table 1, Attached Table 2, Attached Table 3, and Attached Table 4, and completing the relevant planning in combination with the task planning content. 

In terms of bearer, the average throughput of 4G single station three sectors is 250Mbps, the average throughput of 4G MIMO single station three sectors is 800Mbps, the 4G base station bandwidth reservation ratio is 0.3, the 4G link working bandwidth ratio is 0.38, and the 5G base station bandwidth The reservation ratio is 0.53. A single access ring can be connected to 5 5G base stations or 25 4G base stations. A single aggregation ring can be connected to 5 access rings. A single backbone aggregation point can be connected to 7 aggregation rings. A single core layer can be connected to 5 backbone convergence points, 4/5G access equipment deployment mode is 4/5G independent access ring, convergence ring bandwidth convergence ratio is 0.5, backbone convergence point bandwidth convergence ratio is 0.25, and core layer bandwidth convergence ratio is 0.32.

In terms of the core network, the average signaling traffic per user on the S1-MME interface is 11Kbps, the average signaling traffic per user on the S11 interface is 7Kbps, the average signaling traffic per user on the S6a interface is 4Kbps, and the average throughput of a single user during busy hours is 138Kbps. The user ratio is 0.1, and the attachment-to-activation ratio is 0.76.

3) City Q

The city is a suburban scene with low user density. The total number of mobile Internet users is 7.3 million, 60% of which are users of a certain operator, and the planned coverage area is 1,770 square kilometers. The initial network construction plan adopts SA Option 2 networking, deploys 5G TDD wireless network, IP bearer network convergence, and access layer adopts ring topology.

In terms of wireless environment, the average building height of Q City is about 18m, the street width is about 16m, the terminal height is about 1.52m, the base station height is about 18m, and the number of single base station cells is 3. Human body loss is fixed at 0.1dB, cable loss is negligible, shadow fading margin is 8dB, and docking gain is 5dB. The uplink interference margin is 4dB, and the downlink interference margin is 5dB. The penetration loss of each frequency band is shown in Table 7.

Table 7 Penetration loss of each frequency band

frequency band (GHz)

0.7

2.6

3.5

4.9

27

37

Penetration loss (dB)

11

23

26

30

46

49

In terms of 5G terminals, an operator found through market research that users in the city mainly use the following three types of terminals. Among them, terminal 1 accounts for more than 75%. This planning mainly considers the parameters of terminal 1, and its terminal sensitivity is -114dBm, and the relevant performance parameters of each terminal are shown in Table 8.

Table 8 Performance parameters of each terminal

Terminal model

Terminal 1

Terminal 2

Terminal 3

Power (dBm)

23

26

26

Antenna gain (dBi)

0

0

0

number of antennas

2T4R

2T2R

2T4R

In terms of wireless equipment, the operator in Q City has five AAU models in the following table to choose from. The performance parameters of each AAU are shown in Table 9. When converting AAU power into dBm, it needs to be rounded down, and the base station sensitivity is -129dBm.

Table 9 Performance parameters of each AAU

AAU model

AAU999G

AAU888G

AAU666G

AAU555G

AAU333G

Support frequency band (MHz)

37000-40000

2515-2675

4800-5000

3400-3600

3400-3800

Power (W)

260

160

200

160

160

Antenna gain (dBi)

27

16

17

17

18

Support bandwidth configuration (MHz)

50 /100 /200 /400

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

20 /40 /50 /60 /80 /100

In terms of wireless parameters, the planned coverage area of ​​Q city is a low-speed mobile scene.运营商计划使用BAND260频段中的频点来开通带宽为200MHz的5G站点,1小区下行中心载频为2239167,2小区下行中心载频为2249167,3小区中心载频为2259167,系统子载波间隔为120kHz,采用DDSUU 0.625ms单周期帧结构,S时隙符号配比为5:1:1,上行开销比例为0.18,下行开销比例为0.21,单小区RRC最大用户数为660,上行缩放因子为0.89,下行缩放因子为0.87,上下行编码效率均为0.75,Rmax为948/1024,上行速率转化因子为0.31,上行调制方式为256QAM,下行速率转化因子为0.39,下行调制方式为256QAM,激活用户在线比例为0.08,热点区域扩容比例为1.36,4G小区覆盖半径约为800m。PRACH参数规划根据实际网络配置情况,参考附表1、附表2、附表3和附表4内容,结合任务规划内容完成相关规划。 

承载方面,4G单站三扇区吞吐量均值为200Mbps,4G MIMO单站三扇区吞吐量均值为630Mbps,4G基站带宽预留比为0.27,4G链路工作带宽占比为0.45,5G基站带宽预留比为0.58,单接入环可接入7个5G基站或28个4G基站,单汇聚环下挂6个接入环,单骨干汇聚点下挂5个汇聚环,单核心层下挂7个骨干汇聚点,4/5G接入设备部署模式为4/5G独立接入环,汇聚环带宽收敛比为0.48,骨干汇聚点带宽收敛比为0.35,核心层带宽收敛比为0.24。

4.任务详情

(1)请根据各城市提供的话务模型与网络拓扑中规划的组网架构进行网络规划计算,并将答案填写至答题卡上。

(2)根据已有网络规划参数及网络建设的实际情况,完成无线接入机房、承载网机房以及核心网机房中的设备部署及业务调试。

(3)实现P市P1和Q市Q1、Q2共3个小区端到端的终端会话或注册联网业务正常拨测。

附表:

附表1 PRACH规划参数说明

中文说明

配置建议

PRACH格式

2.5ms双周期和5ms单周期:Format 0;

1.25ms单周期和2.5ms单周期:Format B4

0.625ms单周期:Format 2

接入限制集配置

低速移动场景:非限制集;

中速移动场景:限制集A;

高速移动场景:限制集B;

循环移位区间配置

Format 0:6

Format 2:8

Format B4:14

PRACH时域资源配置索引

Format 0:17

Format 2:23

Format B4:162

附表2 PRACH格式下 kHz,取值

循环移位区间配置

 取值

非限制集

限制集A

限制集B

0

0

15

15

1

13

18

18

2

15

22

22

3

18

26

26

4

22

32

32

5

26

38

38

6

32

46

46

7

38

55

55

8

46

68

68

9

59

82

82

10

76

100

100

11

93

128

118

12

119

158

137

13

167

202

-

14

279

237

-

15

419

-

-

附表3 PRACH格式下kHz,取值

循环移位区间配置

 取值

非限制集

限制集A

限制集B

0

0

36

36

1

13

57

57

2

26

72

60

3

33

81

63

4

38

89

65

5

41

94

68

6

49

103

71

7

55

112

77

8

64

121

81

9

76

132

85

10

93

137

97

11

119

152

109

12

139

173

122

13

209

195

137

14

279

216

-

15

419

237

-

附表4 PRACH格式下 kHz 且 取值

循环移位区间配置

非限制集下取值

0

0

1

2

2

4

3

6

4

8

5

10

6

12

7

13

8

15

9

17

10

19

11

23

12

27

13

34

14

46

15

69

子任务2:5G室内与室外站点建设(20分)

1.任务背景

在同样的应用场景下,子任务一完成了5G公共网络部署与调试,本子任务要求完成5G公共网络的相关站点建设。经过前期勘察选址,运营商将在某酒店进行5G室内站点建设工作,同时在某主干道旁进行5G室外站点建设工作。作为运营商的5G工程师请依据提供的规划参数分别完成5G室内站点与室外站点的工程勘察、方案设计、工程概预算、工程实施与工程验收工作。

2.任务要求

(1)方案设计时,需要参考任务背景,遵守国家与运营商各项相关规范,分别完成5G室内站点与室外站点相关工作。

(2)工程预算中,概预算定额采用工信部通信[2016]451号文件标准,5G相关新设备根据工信部通信[2016]451号文件标准同类型相关设备新增参考定额。销项税额根据国家规定额度进行计算。分别完成5G室内站点与室外站点的工程预算相关工作。

(3)工程实施时,需要参考任务说明、工程勘察报告与方案设计图纸,遵守国家与运营商的各项相关工程规范。分别完成5G室内站点与室外站点的工程实施相关工作。

(4)工程验收时,必须完成每个小区的信号覆盖与业务功能验收工作,分别完成5G室内站点与室外站点的工程验收相关工作。。

(5)5G室内站点与室外站点的所有任务完成后,都必须分别手动点击“提交任务”上传任务数据,不上传任务数据默认得0分,多次上传以最后一次为准。

3.任务规划

在5G室内站点建设任务中,采用数字化室分(室内分布)方案进行建设,规划使用频段为n41(2600MHz)。该酒店共10层楼(地下1层,地上9层),平均每层楼有100个用户,该酒店内有两部电梯都可通往所有楼层,每部电梯定员20人,该运营商的用户占比为0.6。

在5G室外站点建设任务中,规划使用n78(3500MHz)频段。新建站点规划覆盖以站址为中心,半径为800m的周边区域,站点天线规划安装的高度为40m,站点链路带宽为50Gbps,站点机房往上连接场景中心机房。新建站址旁已有一个室外站点,部分资源可以利旧使用,原有站点归属其他运营商所有,原有站点的链路带宽为100Gbps,原有站点的天线高度为35m,原有站点的柜内地排已连接机房接地体,不允许复用原有站点的BBU。

4.任务详情

(1)站点勘察部分,站点勘察应模拟真实工程,勘察工具包含但不限于手持北斗测量仪、指南针、照相机、卷尺、激光测距仪等,可测量场景详细信息,需要填写5G室外站点与室内站点2份勘察报告,勘察报告内容填写正确则可得到对应分数。

(2)方案设计部分,根据项目建设要求,结合勘察报告,分别完成5G室外站点与室内站点的所有工程图纸设计工作。设计图内容完整、设计设备与参数等内容正确则可得到相应分数。

(3)工程预算部分,根据国家规定,请结合设计方案分别完成5G室外站点与室内站点两种建站情况下对应的两套概预算表格编制,两套概预算表格都需要包含表一(工程概预算总表)、表二(建筑安装工程费用概预算表)、表三甲(建筑安装工程量概预算表)、表三乙(建筑安装工程机械使用费概预算表)、表三丙(建筑安装工程仪器仪表使用费概预算表)、表四(国内器材概预算表)、表五(工程建设其他费概预算表)。金额计算时四舍五入保留小数点后2位数,每个金额统计条目数值在标准答案上下5元浮动范围内则可得到相应分数,每个数量统计条目填写正确则可得到相应分数。

(4)工程实施部分,根据规划数据、工程勘察报告与方案设计图纸,分别完成5G室内站点与室外站点相关设备安装与线缆连接工作。设备类型、安装位置、线缆类型与端口连接正确则可得到相应分数。

(5)工程验收部分,分别完成5G室内站点与室外站点下的每个小区的信号覆盖与业务性能验收工作。验收内容通过则可得到相应分数。

竞赛模块2--5G公共网络运维与优化(35分)

1.任务背景

近日,工信部提出关于加强5G+智慧旅游协同创新发展的通知,文件要求,到2025年,我国旅游场所5G网络建设基本完善,5G融合应用发展水平显著提升,产业创新能力不断增强,5G+智慧旅游繁荣、规模发展。

O市、P市与Q市均有多个国家级5A旅游区,为支持5G智慧旅游的产业落地,三市大力开展5G网络建设,在5G旅游区内打造了多个5G智慧体验区,通过5G+智慧场景打造了多个主题旅游点。现三个城市旅游区内的基础5G网络建设已初步完成,但智能终端无法正常进行业务。现你为运营商网络部工程师,请根据故障表征运用调测工具完成5G网络故障排查,保障终端网络性能达到场景业务需求。

2.任务要求

每参赛队选手通过比赛平台在完成无线接入网、承载网和核心网对接后,完成O市、P市与Q市5G网络维护与故障排查,并完成优化任务说明中指定的任务要求。相关注意事项如下:

(1) 三个城市采用NSA或SA组网模式,涵盖了Option 3x与Option 2两种选项。无线部分包含CU、DU分离或合设部署模式,非独立组网部署时4/5G无线基带设备可共5G BBU或独立设备部署。各城市的组网架构与部署模式请参照网络拓扑规划,不可对组网模式、CU、DU部署模式、4/5G无线站点部署模式进行更改。

(2)根据商用网络优化规范,网络优化以后台参数优化为主,不推荐基站的工程参数调整。同时需统筹考虑各项考核任务,若单项优化时使得其他优化指标性能不合格,则此优化方式不得分。

(3)如某一故障存在多种修改方案,以最少改动方案为准,其他方案不得分。

示例:例如终端配置网络号与网络系统不一致,方案一为修改网络系统中多处网络号地址,方案二为修改终端配置网络号,相比而言后者为最少改动方案,故此指出终端配置错误的位置为正确答案,列举其他修改方案不得分。

(4)对于设备间某参数协商错误导致的故障,指出或修改一端位置即可得分,同时指出两端故障只计一次得分。

示例:如NG偶联端口,无线与核心网两端配置不一致时,故障位置只需指出无线配置错误位置或核心网配置错误位置其中一个即可,如同时列举两端错误位置,只统计一次得分。

(5)承载网核心、汇聚、接入层采用冗余保护,冗余部分的故障计入得分故障点。核心网中采用网络冗余保护,冗余部分的故障计入得分故障点。

(6)当多个故障对应的故障点相同时,只需填入一个故障点,记为一个得分故障点。

(7)故障排除过程中由于某个操作造成需要新增部分参数配置,不计入得分故障点。

(8)网络中共存在50处故障,每正确指出一处故障得分,故障指出错误、重复或指出不存在的故障不得分。

(9)本任务结果评价以裁判导出的网页端故障排除选项卡为准。

3.任务规划

O市采用Option 3x组网架构,P市采用Option 2组网架构,Q市采用Option 2组网架构。

4.任务详情

(1)使用相关工具,排查无线、核心网及承载网的所有故障点,并将所有故障点填写至故障选项卡并提交。

(2)在工程模式下,完成无线接入网、承载网及核心网端到端的对接调试,实现O市O2,P市P2、P6与Q市Q1、Q2三个城市共 5个小区的终端会话或注册联网业务正常拨测。

(3)在工程模式下,进行O市O_4、O_6,P市P_2,Q市Q_3共4个点定点测试,要求: 

①O_4:SSB RSRP≥-91dBm,SSB SINR≥14dB,上行速率≥204Mbps,下行速率≥380Mbps,语音、视频、直播业务正常;

②O_6:SSB RSRP≥-88dBm,SSB SINR≥20dB,上行速率≥160Mbps,下行速率≥350Mbps,语音、视频、直播业务正常;

③P_2:SSB RSRP≥-99dBm,SSB SINR≥12dB,上行速率≥130Mbps,下行速率≥420Mbps,语音、视频、直播业务正常;

④Q_3:SSB RSRP≥-88dBm,SSB SINR≥24dB,上行速率≥200Mbps,下行速率≥500Mbps,语音、视频、直播业务正常。

(4)在工程模式下进行DT测试,小区重选和切换每项测试成功率达到100%,完成O市中O_1→O_5→O_6→O_7切换(切换次数不大于2次)、P市中P_2→P_7→P_6→P_5切换(切换次数不大于2次)、Q市中Q_3→Q_2→Q_1→Q_5切换(切换次数不大于2次)、O市中O_4→O_6→O_7→O_2重选(重选次数不大于2次)、Q市中Q_2→Q_1→Q_5→Q_7重选(重选次数不大于2次)测试。

(5)根据任务背景要求完成Q市智慧农业切片的相关参数配置及调试。

竞赛模块3--5G专用网络组网与运维25分)

1.任务背景

5G融合应用是促进经济社会数字化、网络化、智能化转型的重要引擎。“十四五”期间面向信息消费、实体经济、民生服务三大领域,工信部将联合相关部委及地方政府重点推进15个行业的5G应用,打造深度融合新生态,实现重点领域5G应用深度和广度双突破,构建技术产业和标准体系双支柱,逐步形成5G应用“扬帆远航”的发展局面。

本市运营商与当地重点企业试行5G+智慧工厂改造,现已完成智慧工厂网络设计与初步网络规划,现需根据任务规划完成5G专用网络部署与运维优化,保障5G智慧工厂网络验收通过。

2.任务要求

运营商网络部门与工厂内数字化部门已完成工厂试点升级区域的初步勘测,通过对试点区域的业务模型统计,制定了初步网络建设方案与工厂升级方案。现要求参赛选手遵循以下操作要求和考核规范,完成5G专用网络建设与运维优化。

(1)每个参数队通过竞赛平台中5G专用网络竞赛单元完成工厂的5G专用网络组网与运维。竞赛单元中既有的网络规划参数、设备、连线、参数均不可修改,修改一处系统自动扣1分,直至本任务总分扣完为止。

(2)竞赛单元包含多个功能模块,各模块独立评分,各参数队需按任务说明完成各模块工作并提交答案,未提交任务则无法记录对应模块的成绩。调试验收部分需按规定项目完成验收任务,完成非任务要求的验收项目不得分。

(3)本任务5G专用网络采用Option 2独立组网,无线网采用CUDU合设方式。

(4)本任务各模块间数据互相联动,设备选型与连线、参数配置需与规划设计部分的参数一致,系统已设置一致性检查,不一致则扣除相应考察点分数。

(5)业务调试验收时,需拨测完成考察点的所有小区,遗漏考察点的任一无线小区或任一无线小区拨测不通过则该考察点不得分。网络CQT测试需完成考察点的所有切片测试,考察点的任一切片不通过则该考察点不得分。

(6)无线部分限制:1个CU小区管理1个DU小区,1个终端仅可分配1个切片产品。成本计算以网络估算部分计算结果统计。网络拓扑规划时,网元和连线均需要设置其属性。

(7)核心网部分限制:所有NF的HTTP接口对接中,服务端地址不可等于客户端地址。为便于核心网统一管理,若MEC与5GC同机房,UPF需部署在5GC服务器。

(8)边缘MEC部分限制:5G标准的无线网络信息服务、位置信息服务、业务管理服务中,任意一种服务仅可在MEC APP或MEP中选择一个进行部署,不可同时将同一种服务部署在MEC APP和MEP上。

3.任务规划

工厂数字化升级采用专网专用组网模式,计划升级区域为区域A-1号生产线、区域B-2号生产线、区域C-1号生产线、区域D-2号生产线。总体规划方案、无线参数要求和终端性能参数要求分别如表10、表11和表12所示。

表10 5G专网建设规划方案

规划项

规划值

单物理小区最大支持载波数(个)

3

预算(万元)

550

利旧BBU已使用扇区数(个)

3

无线机房与承载机房距离(km)

20

承载汇聚机房与核心机房距离(km)

120

表11 无线参数要求

升级区域

无线参数规划值

小区频段

基站收发模式

最大RB数(个)

μ

区域A

n78

4T4R

273

1

区域B

n78

4T4R

273

1

区域C

n79

4T4R

273

1

区域D

n79

4T4R

273

1

表12 终端性能参数要求

规划项

规划值

5GC服务器内存(GB)

128

5GC服务器存储(TB)

1

MEC服务器A内存(GB)

128

MEC服务器A存储(TB)

1

MEC服务器B内存(GB)

128

MEC服务器B存储(TB)

2

4.任务详情

1)场景升级

完成升级区域内需升级生产线的智能产线升级与智能终端升级,并根据业务要求填写每个升级终端的5G网络原子能力上行带宽、时延、可靠性与稳定性需求填写。

2)规划设计

(1)根据规划网络架构与设备类型,完成工厂5G专用网络架构设计。拓扑规划需完成网元拖放、网元间连线、网元属性设置、连线属性设置方可得分;

(2)根据不同生产区域的扇区与载波要求,通过pRRU与RRU-HUB拖放完成不同区域的覆盖规划,并完成pRRU扇区设置、连接RRU-HUB设置;

(3)根据网络规划参数与操作要求,完成上行带宽、用户面时延与资源成本相关参数规划与计算,条件如下:

①上行带宽

升级区域升级产线对应的各扇区均需满足任一扇区覆盖范围下场景升级模块拖放的所有终端设置的带宽总和<网络估算下此扇区的所有载波带宽计算的总和;

各设备的需求带宽<性能带宽;

各链路的需要带宽<性能带宽。

②用户面时延

升级区域升级产线对应的各扇区均需满足任一扇区覆盖范围下场景升级模块拖放的所有终端设置的时延最小值>网络估算下此扇区的所有载波带宽计算的最大值。

③资源要求

上行带宽、用户面时延、资源计算时,设备数量、链路带宽、板卡数、扇区数、载波数相关的参数保持一致,同时支持的物理小区、支持的逻辑小区等参数符合规划数据相关要求。资源计算的设备数参照实训模式下自动计算成本金额,需满足成本金额需小于预算金额,否则按比例扣分。

(4)根据场景升级的智能终端类型,设计差异化切片模板与子模板,并为不同类型智能终端创建对应的切片产品,切片产品数量不超过6个,1类智能终端需被1个切片产品包含。

3)网络部署

(1)根据规划设计的计算结果,完成任务相关的各区域、各机房设备配置与连线。完成规定组网模式下正确机房与区域的设备配置得分,完成非任务相关的机房、区域设备配置不得分。设备配置结果与规划不一致时,相应设备与连线不得分;

(2)完成任务要求的设备关联数据配置。完成规定组网模式下正确机房与区域的设备对应的参数配置得分,完成非任务相关的机房、区域的参数配置不得分。参数配置值与规划不一致时,相应设备与连线不得分。

4)运维优化

(1)在网络调试模块完成MEC APP HTTP服务端地址到CUUP的Ping测试;

(2)在业务调试模块完成A8、B6、C6、D6位置的终端拨测。

Guess you like

Origin blog.csdn.net/weixin_57099902/article/details/131455239