A split mobile communication device

Abstract

This invention discloses a split-type mobile communication device, relating to the field of mobile terminal technology. It aims to solve the technical problems of traditional all-in-one smartphones, such as bulky design, battery life anxiety, limited heat dissipation, and easy data privacy leaks. The device consists of two independent parts: a home computing and storage host and a portable display and communication terminal. The home host has a built-in high-performance processor, large-capacity memory, and active cooling unit, is fixed indoors and connected to mains power, and is responsible for the computation, rendering, and data storage of all applications. The portable terminal only includes a touch screen, a low-power control unit, a cellular communication module, and a thin battery. It does not carry an independent operating system or application runtime environment, but only serves as a human-computer interaction interface and data forwarding node. The two establish an encrypted real-time link through a local area network and a wide area network. The host compresses and sends audio and video streams to the terminal for display, and the terminal uploads touch commands to the host for execution. This invention achieves extreme lightweight design, local data retention, and performance / power consumption decoupling in the portable terminal, significantly improving portability, privacy security, and continuous service capabilities, making it suitable for mobile office, daily communication, and scenarios with high privacy requirements.

Description

Technical Field

[0001] This invention belongs to the field of mobile communication technology, specifically relating to a mobile communication device that adopts a physical separation architecture of computing, storage and display interaction, which is particularly suitable for application scenarios with high requirements for portability, battery life, high-performance computing and user data privacy. Background Technology

[0002] Currently, smartphones have evolved into highly integrated personal computing centers, compressing a central processing unit, graphics processor, large-capacity storage, high-resolution screen, and various communication modules into a small body. This all-in-one architecture leads to the following inherent technical contradictions and defects:

[0003] First, there is a conflict between performance and portability: high-performance chips inevitably generate high heat flux density. Due to passive heat dissipation and a thin and light body, the chip cannot maintain peak performance for a long time, resulting in "heat throttling". At the same time, large-capacity batteries occupy a lot of internal space and weight, which limits the further thinning and lightening of industrial design.

[0004] Secondly, there is a conflict between data security and device integration: all-in-one devices serve as data hubs. Once a device is lost or stolen, contacts, financial accounts, private photos, and corporate data stored in its flash memory face extremely high risks of brute-force attacks and data recovery. Existing software encryption solutions cannot completely eliminate physical-level attacks.

[0005] In addition, existing "cloud phone" or remote desktop solutions rely on virtualized instances deployed on public clouds. Although they achieve terminal slimming, they present a privacy paradox: user data needs to be uploaded to third-party servers, the cost increases linearly with performance, and they are completely unusable when there is no mobile data signal or public network congestion, lacking the robustness of basic communication.

[0006] Therefore, how to achieve high-performance computing power, all-weather battery life, absolutely controllable data security, and offline communication assurance while ensuring extreme portability is a technical challenge that urgently needs to be solved in this field. Summary of the Invention

[0007] The present invention aims to provide a split-type mobile communication device to overcome the shortcomings of the prior art. Specific objectives include:

[0008] First, by physically separating the high-power computing and storage unit from the low-power display and interaction unit, a "card-like" thin and light design for portable terminals can be achieved, freeing them from the technical constraints of batteries and heat dissipation.

[0009] Second, all user privacy data will be stored on a home computer that is physically controllable by the user, cutting off the data leakage path caused by the loss of mobile terminals;

[0010] Third, it integrates the high bandwidth and low latency characteristics of fixed networks with the wide coverage characteristics of cellular networks, taking into account both indoor immersive experiences and basic outdoor communication needs.

[0011] To achieve the above objectives, the present invention provides the following technical solution:

[0012] A split-type mobile communication device, characterized in that the system is decoupled into two physically independent but logically coordinated hardware entities:

[0013] (a) Home computing and storage host

[0014] This host computer serves as the system's "computing center" and "data warehouse," and its architecture is not designed for portability. Its specific components are as follows:

[0015] Computing Unit: Employs a high-performance ARM architecture system-on-a-chip or a low-power x86 architecture central processing unit, with an integrated or external independent graphics processor and at least 8GB of RAM, to support a complete operating system instance (such as Android, Windows, Linux, or a customized RTOS) and multiple concurrent applications.

[0016] Storage unit: Uses solid-state drives or high-speed flash memory arrays with a capacity of no less than 128GB, used for persistent storage of operating system images, application programs, and all user data.

[0017] Communication unit: Supports Wi-Fi 6 / 7 and Gigabit Ethernet wired interfaces, has network address traversal (NAT traversal) client function, and supports direct IPv6 public network connection or signaling relay forwarding.

[0018] Power supply and heat dissipation: It is powered by an external DC power adapter and has a built-in backup lithium battery or uninterruptible power supply module interface; it is equipped with an active air cooling or liquid cooling heat dissipation module to ensure that the chip maintains the reference frequency operation under high load.

[0019] Software Functions: Runs a host-side service daemon responsible for session management, screen capture encoding (H.264 / H.265), audio transmission, and input command parsing; supports multi-user configuration file isolation and automatic cloud / local dual backup.

[0020] (ii) Portable display communication terminal

[0021] This terminal, serving as the system's "sensory interaction window," adheres to a minimalist architectural design. Its specific structure is as follows:

[0022] Display interaction unit: 5.0 to 6.7-inch high-definition or ultra-high-definition touch display screen covered with a reinforced glass cover; supports multi-touch and pressure-sensitive detection.

[0023] Control Unit: Employs a low-power microcontroller unit or a reduced instruction set processor with a clock frequency not exceeding 2.0 GHz. It runs only a lightweight real-time operating system and is responsible for driving the display screen, encoding and decoding lightweight transmission protocols, and collecting sensor data. It does not execute any application layer business logic code.

[0024] Communication unit:

[0025] Cellular leased line: integrates 4G / 5G baseband processor, radio frequency transceiver and user identification card interface, as an independent communication entity, directly handles call signaling and SMS protocol stack.

[0026] Near-field dedicated line: integrates dual-band Wi-Fi and low-power Bluetooth modules to establish a dedicated low-latency link with home host.

[0027] Power unit: Uses polymer lithium-ion battery, with priority given to slim and lightweight form factor (e.g., thickness less than 4mm, capacity 800-1500mAh), supports wireless charging or magnetic charging via contact points.

[0028] Local storage: Contains only read-only memory (ROM) required to run the firmware and a small amount of random access memory (RAM) required for caching; does not include large-capacity flash memory chips available to the user.

[0029] (III) System Workflow

[0030] 1. Connection Establishment Phase: The portable terminal scans for home hosts within the same local area network via a near-field leased line and initiates a connection, or remotely binds to a host via a wide area network tunneling service. After the connection is established, two-way authentication is performed based on Transport Layer Security (TLS), and a session key is negotiated.

[0031] Interaction Execution Phase: The user touches the screen of the portable terminal, generating touch coordinates and gesture events. These events are encapsulated by a low-power microcontroller and sent to the home console via an encrypted channel. The home console's operating system receives the event, injects it into the foreground application framework, and triggers a screen redraw. The host GPU renders the complete frame, compresses it into a video stream via an encoder, and sends it back to the portable terminal via the channel, where it decodes and refreshes the screen.

[0032] Independent communication phase: When a user initiates a cellular voice call, the mobile terminal directly calls the baseband processor to establish a call link. The audio data flows through the terminal's built-in audio codec to directly drive the earpiece and microphone, without going through the home host. After the call ends, the terminal uploads the call time, duration, and contacts to the host, where the host's address book application records and archives the information.

[0033] Compared with the prior art, the present invention has the following significant advantages:

[0034] 1. Ultra-thin and long battery life: By physically removing heavy components such as the SoC, fan, and large battery, the portable device can be reduced to a form only slightly thicker than a flexible circuit board, with a weight of less than 60 grams, making it almost imperceptible for daily commutes. The low-power MCU driving the screen significantly reduces the overall power consumption, achieving a mixed usage battery life of 48-72 hours.

[0035] 2. Revolutionary Privacy and Security: Building a "Data Never Lands" Security Model. Even if attackers physically gain access to a user's device, they can only obtain transient, cached data during encrypted transmission; they cannot read any historical chat logs, photo galleries, or documents. The risk of data breaches is confined to the user's residence, significantly raising the barrier to crime.

[0036] 3. Complete decoupling of performance and heat dissipation: Users can deploy high-performance host with active cooling at home. When running heavy applications such as Genshin Impact and 4K video editing, the device will not get hot and the performance will not degrade, making it possible for mobile devices to run desktop-level applications.

[0037] Enhanced communication reliability: Unlike solutions that rely entirely on the cloud, this invention retains the direct access capability of cellular base stations. Even when the main unit loses power, is offline, or has no network coverage while outdoors, the portable terminal remains a fully functional "feature phone," ensuring its lifeline function in emergency communications.

[0038] Low-cost expansion and maintenance: When upgrading, users only need to replace the lower-cost portable terminal, without having to invest in high-performance processors and large-capacity storage again; when deployed by an enterprise, a high-performance host can be configured to serve multiple employees' time-sharing or screen-sharing terminals, greatly reducing hardware procurement and management costs. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments.

[0040] Example 1: High-performance gaming and entertainment scenarios for tech enthusiasts

[0041] In this embodiment, the home computing and storage host is a mini PC based on the x86 architecture, equipped with an Intel Core i7 processor, 16GB of memory, and a 1TB NVMe solid-state drive, running Windows 11 and Android. The host is connected to a large-screen TV in the living room via HDMI and is in Bluetooth remote control mode.

[0042] The portable display communication terminal features a 6.1-inch OLED screen with a resolution of 2400x1080 and weighs 65 grams.

[0043] Implementation Process: After returning home, the user places their portable device on the wireless charging dock. The device automatically recognizes the connection and switches to "Indoor High-Performance Mode." At this time, the device establishes a direct 5GHz connection with the host computer via Wi-Fi 6, with a latency of <5ms. When the user clicks the game icon on their portable device, the command is sent to the host computer, which launches the Windows game and renders the screen in real-time using HEVC format for transmission. The user can stream and play demanding AAA games on their slim, portable device in the bedroom, while the host computer handles fan noise and heat dissipation in the living room. When the user leaves home, the device automatically switches to cellular data, connecting to the host computer at home via public network penetration to continue remotely controlling casual games at a lower bitrate.

[0044] Example 2: Privacy and security office scenarios for business professionals

[0045] In this embodiment, the home computing and storage host is deployed in a company office or home study, and a customized secure operating system is installed. All work documents, email clients, and WeChat for work all run on the host.

[0046] The portable display communication terminal has no 3.5mm headphone jack, adopts a fully sealed waterproof design, and has no physical data interface.

[0047] Implementation Process: Business personnel travel with only a lightweight mobile device. Even when using public Wi-Fi in a coffee shop, all data streams interacting with the company server are processed within the corporate host, with the personal device only displaying encrypted image streams. If the device is stolen, because it lacks a user data storage chip and requires strong authentication with the host each time it's powered on, the finder cannot unlock the interface to view any schedules or confidential emails, achieving a truly "zero-data terminal." Simultaneously, the host's scheduled backup strategy automatically encrypts and synchronizes incremental data to the private cloud overnight, preventing single-point data loss due to unforeseen events such as fires or floods.

[0048] Example 3: Basic care scenarios for children / elderly groups

[0049] In this embodiment, the home computing and storage host uses a low-power ARM development board to deploy a home private cloud service.

[0050] The portable display communication terminal simplifies the setup, with enlarged screen fonts and the main interface retaining only phone, SMS, and a few preset green application icons.

[0051] Implementation: Children wear the ultra-lightweight terminal to school. During school hours, the terminal automatically disables video streaming to save power, only enabling independent cellular calling mode, allowing parents to contact their children at any time. After school, upon connecting to Wi-Fi, the terminal automatically resumes its streaming session with the host computer, allowing children to access pre-downloaded learning apps or cartoon resource libraries without any local downloads or installations. Because the terminal has no storage space, it effectively prevents children from becoming addicted to locally cached videos and avoids the safety hazards of severely degraded batteries and reduced battery life associated with older mobile phones used as children's devices.

[0052] The modular mobile communication device described in this invention allows the home host to be manufactured using existing mature PC, NUC, and development board supply chains; the portable terminal is compatible with existing smartphone panel, battery, and RF module supply chains, eliminating the need to develop entirely new semiconductor processes and offering extremely high manufacturability and cost control. This invention redefines the form factor boundaries of mobile computing and possesses broad commercial prospects and strategic value.

Claims

1. A split-type mobile communication device, characterized in that, This includes independent home computing storage hosts and portable display and communication terminals connected via wireless networks: The home computing and storage host is configured to be fixedly deployed in an indoor location, connected to the mains power supply system, and has a built-in high-performance central processing unit, random access memory, non-volatile large-capacity memory, a first wireless transmission module, and an active heat dissipation unit; the home host is used to independently and completely run the operating system and applications, perform all data operations, graphics rendering, file storage, and business logic processing, and all user data is stored only on this host. The portable display communication terminal is equipped with a touch screen, an independent cellular mobile communication baseband and radio frequency front-end, audio input / output components, and a low-power microcontroller dedicated to interactive control. The terminal does not include an independent application processor, a second wireless transmission module, or a portable second power module. The portable terminal does not run a complete operating system, does not execute application logic, and does not contain a large-capacity non-volatile storage medium available to the user. It is only used to collect user interaction commands, display compressed audio and video streams, and directly complete voice calls and SMS sending / receiving via the independent cellular baseband. The home host and the portable terminal establish a two-way encrypted real-time link through the second wireless transmission module. The portable terminal uploads the collected interactive commands to the home host in real time, and the home host sends the rendered and compressed video frames and audio streams to the portable terminal for decoding and presentation. When the portable terminal cannot establish a network connection with the home host, its cellular communication unit still independently maintains the traditional cellular voice and SMS functions.

2. The split-type mobile communication device according to claim 1, characterized in that, The wireless communication unit of the portable display communication terminal includes an independent cellular mobile communication baseband and radio frequency front-end, which are used to independently complete dialing, circuit domain or packet domain voice calls, SMS sending and receiving, and mobile data access; the cellular data path and the wireless transmission path connecting the home host are physically and logically independent of each other, and can work in parallel or switch collaboratively according to the scenario strategy.

3. The split-type mobile communication device according to claim 1, characterized in that, The second wireless transmission module is one or more of Wi-Fi, Bluetooth, Ultra-Wideband (UWB), or Near Field Communication; in a local area network environment, a high-speed connection is established through P2P direct connection or local area network routing; in a wide area network environment, an encrypted virtual private network connection is established through Network Address Transmission (NAT) or a relay server.

4. The split-type mobile communication device according to claim 1, characterized in that, The home computing storage host supports LAN wake-up, timed wake-up, and background keep-alive mechanisms; it has a built-in module for full-disk encryption and automatic incremental backup of user data; it supports binding one or more portable display communication terminals at the same time, and performs session isolation and personalized configuration based on the terminal identifier.

5. The split-type mobile communication device according to claim 1, characterized in that, The portable display communication terminal does not have an independent large-capacity non-volatile storage medium; user identity authentication credentials, application data, media files and document history are only stored on the home host, and the physical loss of the terminal will not lead to direct leakage of the stored data.

6. The split-type mobile communication device according to claim 1, characterized in that, The portable display communication terminal supports offline basic communication mode; when a network connection with the home host cannot be established, its cellular communication unit can still independently perform traditional base station voice calls and SMS functions; when the connection with the home host is restored, the terminal automatically synchronizes the call records, unread SMS messages and contact changes generated during the offline period to the home host database.

7. The split-type mobile communication device according to claim 1, characterized in that, The home computing storage host is equipped with a heat dissipation module based on an active fan or a semiconductor cooling chip, as well as an uninterruptible power supply or backup battery interface, supporting 24 / 7 uninterrupted standby operation.

8. The split-type mobile communication device according to any one of claims 1 to 7, characterized in that, The system incorporates adaptive transmission optimization strategies, including content-aware dynamic image encoding and compression, touch command preloading based on prediction algorithms, and bitrate adaptive adjustment based on network bandwidth detection, to ensure end-to-end synchronization of touch response, image display, and audio playback.