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Services · 04

Infrastructure Integration

HLD / LLD design, implementation, testing, acceptance and handover for campus networks, wireless, data centres and network security, delivered to your global standards in China.

Design, build, accept and hand over — one accountable party

In scenarios such as greenfield data rooms, campus network upgrades, Wi-Fi 6/6E rollouts, and global HQ standardisation in China, projects frequently derail due to disconnected cabling and core IT teams, mismatched hardware stacks, and vendor finger-pointing.

With 15+ years of enterprise integration experience, GSS acts as the single accountable integrator and governs the project from design to acceptance and handover.

What this page answers: design and implementation scope, HLD / LLD deliverables, project governance, testing and acceptance criteria, handover contents.

StageCommon issue with fragmented subcontractingGSS approach
AccountabilityCabling crews, hardware vendors and software teams shift blameOne accountable owner from design and BOM procurement to acceptance
HQ alignmentGlobal blueprints lose fidelity in local executionBilingual architects work directly with HQ, delivering to global HLD / LLD templates and naming conventions
Implementation and cutoverPoorly sequenced migrations cause prolonged downtimePhased cutover and rollback plans, reviewed and executed outside business hours
Acceptance and handoverContractors leave after sign-off; nobody maintains the estateAcceptance test report and sign-off; as-built documentation, configuration snapshots and asset list handed over; 1-year warranty with optional transition to GSS managed operations
Service specifications

Infrastructure Integration

DomainsCampus and branch networks, enterprise wireless (Wi-Fi 6 / 6E), data-centre networking, network security (firewall / SD-WAN / zero trust), server-room infrastructure
VendorsCisco, Fortinet, MikroTik and major server, storage and UPS brands; vendor selection per client global standards
DeliverablesRequirements analysis, HLD / LLD, cutover plan, acceptance test report, as-built documentation and training
Project scale50-person offices to campuses of 10,000+; largest single project 2,000+ access points
Project governanceProject manager plus technical lead; weekly reporting, risk register, change control; cutover and rollback plans reviewed before execution
Testing and acceptanceUnit / integration / post-cutover tests; acceptance test report with customer sign-off, checked item by item against HLD / LLD
Warranty and handover1-year workmanship warranty; as-built documentation, configuration snapshots and asset list handed over, with optional transition to managed infrastructure services
Delivery process

Delivery process

Requirements and site survey

Business requirements, outlet positions, server-room conditions and existing-system assessment, documented in a survey report.

Solution design

HLD / LLD, bill of materials and budget, with proof-of-concept testing where needed.

Implementation and cutover

Goods receipt, installation and configuration, phased cutover to minimise business disruption.

Acceptance and handover

Acceptance testing, as-built documentation, operations training, and optional transition to GSS managed infrastructure services.

Related cases

Related cases

Commercial real estate IFC International Finance Centre (Beijing)

IFC Tower Multi-tenant Wi-Fi and AI Wireless Operations

Tenants had each built their own Wi-Fi, causing heavy channel interference and leaving public areas uncovered. Property management wanted one guest-and-tenant network with real-name authentication, but worried about operational load and tenant data isolation.

520 Access points
11,000+ Peak concurrent clients
Logistics / Supply chain A national express logistics company

Logistics Hub Network and Edge AI Video Analytics

Hub networks were built region by region; scanner or sorter disconnects immediately backed up parcels. Hundreds of cameras per hub were only reviewed after complaints, so rough handling, unsafe behaviour and blocked fire lanes went undetected in real time, and back-hauling all video to HQ was neither affordable nor practical.

86 Sorting hubs
−95% Outage-driven backlogs
Smart campus Beijing Digital Huamao

Beijing Digital Huamao Smart Campus

Network, security, BMS, parking, access control and energy metering were delivered in phases by different contractors, leaving seven disconnected systems. Property staff spent heavy hours on manual meter reading and patrols while energy bills kept rising, and tenant circuit activation took 2–3 weeks, slowing leasing.

12,000+ IoT endpoints
−18% Campus energy
Energy / SOE A central state-owned energy enterprise

Energy SOE Unified Wireless Access and AI Network Assurance

Each province had built its own wireless with different SSIDs, authentication and security policies, so staff could not roam across provinces and HQ could not audit device access. Remote-site network faults waited for a provincial engineer to travel, averaging over two days to fix.

310 Sites covered
120,000+ Connected devices
FAQ

FAQ

Can we use equipment we procure ourselves?

Yes. GSS can provide design and implementation only, or take on procurement and prime integration.

How do you ensure delivery to HQ standards?

Bilingual project teams work directly with HQ architects, follow global configuration templates and naming conventions, and deliver English documentation.

How long does a project take?

Offices under 500 people typically 4–8 weeks; large campuses are phased and usually run 3–6 months.

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