Archive for year: 2024

On December 4th, the 2024 Digital Technology Ecology Conference Terminal Technology Standards and Innovation Cooperation Forum with the theme of “End Cloud Collaboration, Intelligent Connection of All Things” was held in Guangzhou. At the meeting, China Telecom released its 2025 Terminal Technology Development Strategy, 2024 China Telecom Terminal Insight Report, and multiple innovative technological achievements. It also held the launch ceremony for the 5G Enhanced Call SDK open source and 5G New Communication Innovation Laboratory cooperation recruitment plan, and awarded the Terminal Testing Quality Excellence Award. Experts and scholars from industry, academia, and research engage in in-depth discussions on popular topics such as artificial intelligence and cloud collaboration, sharing industry insights and perspectives.

At the meeting, China Telecom released its 2025 terminal technology development strategy, focusing on four major technology directions: network, cloud and cloud network integration, artificial intelligence, and quantum/security. China Telecom focused on AI, 5G, and satellite, and proposed seven key technology research and development needs, demonstrating China Telecom’s profound insight and forward-looking thinking on the future development trends of terminal technology and its business in the field of communication, and clearly expressing China Telecom’s key technology needs for future cooperation.

In terms of AI, China Telecom continues to promote the integration of the Star Big Model with various terminals, develop collaborative interface standards for end cloud size models, and actively cooperate with industry chain partners to carry out product innovation. In terms of 5G enhanced communication, we will open source our self-developed IMS DC terminal SDK and jointly create benchmark applications based on base technology and end cloud collaboration capabilities. By the first half of 2025, we will promote the commercialization of VC services based on video enhancement, and in the second half, we will promote the commercialization of DC services. In terms of VoWiFi, we aim to build high QoS guaranteed maritime VoWiFi call capabilities, lead the release of the GSMA 5G VoWiFi white paper, and promote commercial and terminal scale support for VoWiFi. In terms of direct connection of mobile phones to satellite services, we aim to enhance service availability in multi-channel scenarios, release a multi-mode integrated satellite terminal testing system, develop the Beidou short message SDK, and continue to conduct integrated satellite ground communication experiments. In terms of 5G upgrade, we will promote commercial support for new 5G features such as 3CC and 1024QAM in mid to high end terminals, standardize RedCap modules, and promote innovation in terminal products such as drones and millimeter waves. In terms of Beidou+5G high-precision positioning, we will promote the integration of terminal positioning SDKs and jointly create low-power universal positioning terminal products.

During the forum, China Telecom officially launched the recruitment plan for 5G enhanced call SDK open source and 5G new communication innovation laboratory cooperation. It announced that it will donate its self-developed 5G enhanced call terminal SDK to the GSMA open source project to jointly create a new ecosystem for 5G enhanced call open cooperation.

China Telecom’s 5G enhanced call service is a new upgrade to the basic call services of telecom operators. Through AI enhanced technology and DC applications for audio and video calls, it provides users with a richer, more convenient, and efficient call experience; In the future, we will focus on enhancing the construction of communication networks and platforms, optimizing application experiences, strengthening AI integration, enriching terminal capabilities, promoting terminal collaboration, adapting functions, providing a good operating environment for business development, and fully preparing for the comprehensive commercial implementation of 5G enhanced communication.

5G technology is revolutionizing transportation hubs, such as airports, train stations, and subways, by enhancing both efficiency and security. Here’s how:

Faster Connectivity: With 5G’s ultra-fast speeds, passengers and staff can access real-time information quickly, reducing wait times and improving the overall travel experience. This includes instant updates on arrivals, departures, and any operational changes.

IoT Integration: 5G supports a vast network of Internet of Things (IoT) devices, such as smart sensors and cameras. These devices help monitor passenger flow, track luggage, and optimize resource allocation, ensuring smooth operations and minimizing delays.

Enhanced Surveillance: Advanced security systems powered by 5G can incorporate high-definition cameras and AI analytics for real-time monitoring. This allows for quicker threat detection and response, significantly enhancing safety measures at transportation hubs.

Data-Driven Decisions: The high bandwidth of 5G enables the collection and analysis of large volumes of data. Transportation authorities can make informed decisions on crowd management, scheduling, and maintenance, improving operational efficiency.

Contactless Technology: 5G enables efficient contactless services, such as mobile ticketing and payment systems, reducing physical interactions and streamlining processes. This is especially important in maintaining health safety standards.

Remote Monitoring and Maintenance: With 5G, transportation systems can be monitored remotely, allowing for proactive maintenance of infrastructure and equipment. This minimizes downtime and enhances reliability.

Enhanced Communication: Improved communication tools for staff, facilitated by 5G, ensure better coordination among teams, leading to quicker problem resolution and improved service delivery.

In summary, 5G technology is a game-changer for transportation hubs, offering a blend of efficiency and security that enhances the passenger experience and optimizes operations.

With the explosion of AI and the growing demand for cloud services, the demand for network switches, network cards, and other hosts has also increased. The production testing of hosts has become increasingly important, and port testing is an essential part. According to conventional understanding, the host port is used to plug and unplug optical modules or DACs to achieve communication between hosts. If optical modules or DACs are used in the production process, the production cost will become very high and the efficiency will not be optimal. Based on this situation, the industry has developed an electrical loopback module (Loopback) specifically for port testing. This type of electrical loopback module has low-speed protocol handshake function for optical modules or DACs, and can also complete multi-channel Tx ->Rx signal loopback for the host. This type of module not only has a much lower cost than optical modules or DACs, but also has higher testing efficiency.

In response to the requirements of different network switch or network card manufacturers, the industry has also developed different types of electrical loopback modules that are compatible with different versions of CMIS. We have also brought different electrical loop modules for different applications.

1. To meet the requirements of different packaging, Tangling Technology has brought the following passive electric loop module packages to meet the needs of network switches and network cards with different port designs.

2. For host testing that requires understanding of power consumption or heating conditions and simulating the heating of optical modules or AECs, we can provide different power consumption or electric loop modules with displays to real-time understand port heating and eliminate problem ports. At the same time, it can be used as an optional item for reliability testing.

3. For DAC applications, customized development of electrical loop module verification host ports that match DAC losses can be selected 3db-9dB The insertion loss value.

4. With the emergence of LPO modules, a new generation of hosts that support LPO has also emerged. Active loop back modules can further support and verify such hosts. Due to their CTLE adjustment and FFE monitoring functions, active loop back modules can be used to optimize the Rx capability of hosts during testing, especially in EVT/DVT small batch testing, which is of great help. At the same time, the active electric loop module can simulate the operation of optical modules with different DSPs and AECs in real life, which is more suitable for practical applications to verify the host port.

5. The creative active loop module with real-time error rate monitoring function is particularly suitable for verifying the performance of the host port Tx in production reliability testing, monitoring real-time error rate curves and SNR related parameters, and verifying the reliability of the host port Rx through different FFE settings.