CN201278534Y - Customer end equipment - Google Patents

Abstract

The utility model discloses a client device. The client device not only includes a data access module and a general processor, but also includes a multi-port USB control module with at least two USB interfaces. A USB interface of the control module is connected with the multi-port USB control module, and the general processor is connected with the multi-port USB control module through a general-purpose bus or a PCI interface. The wireless CPE based on the USB interface provided by the utility model can improve the flexibility, expansibility and generality of the CPU of the wireless CPE, and can realize the multifunctional expansion of the wireless CPE.

Description

client device

technical field

The utility model relates to the field of communication technology, in particular to a customer premise equipment (Customer Premises Equipment, referred to as CPE).

Background technique

Worldwide Interoperability For Microwave Access (WiMAX for short) technology is developing rapidly because of its bandwidth advantages and convenient wireless networking, especially in the field of data applications, including data transmission bearer and data access. Due to its characteristics, products in the commercial field of WiMAX technology mainly include data cards and CPE access products.

At present, there are many WiMAX commercial chip manufacturers, and there are many interface forms, mainly including Universal Serial Bus (Universal Serial Bus, referred to as USB) interface, Media Independent Interface (Medium Independent Interface, referred to as MII), secure digital input/output interface ( Secure Digital Input/Output, referred to as SDIO) and PC Memory Card International Association (Personal Computer Memory Card International Association, referred to as PCMCIA) interface, because the USB interface is convenient and flexible, it is supported by a variety of devices and chips, and is widely used For the interface of various devices and chips, it can be easily connected to various devices through the USB interface.

The current WiMAX CPE connection method based on the USB interface is shown in Figure 1. The WiMAX access module and the network central processing unit (Central Processing Unit, referred to as the CPU) are connected and communicated through the USB interface. At the same time, the network CPU provides a MII interface and The network physical chip (NetPHY) is connected and converted into a standard RJ45 to communicate with external network devices.

The WiMAX CPE based on the USB interface of the prior art is connected through a fixed interface between the WiMAX access module, the network CPU, and the external network equipment. Therefore, when the user needs to provide multiple ports, the solution is greatly changed. Poor scalability; and, because the network CPU is connected to the module through the USB interface WiMAX and connected to the external network device through the MII interface, it is required that the network CPU must support both USB and MII interfaces; The interface is connected with external network equipment, therefore, the function realized by this WiMAX CPE is single.

Utility model content

In view of this, the utility model provides a CPE, which is used to solve the problems of poor scalability of the CPE and high requirements on the CPU in the prior art.

According to the utility model, a client device is provided, the client device not only includes a data access module and a general processor, but also includes a multi-port USB control module with at least two USB interfaces, wherein the data access module One USB interface of the USB control module is connected with the multi-port USB control module, and the general processor is connected with the multi-port USB control module through a general-purpose bus or a PCI interface.

Further, the multi-port USB control module is connected with external network devices through one or more USB interfaces.

Specifically, the client device further includes a multi-port expansion module, and the multi-port expansion module is connected to the multi-port USB control module through one or more USB interfaces of the multi-port USB control module.

Further, the above-mentioned multi-port expansion module includes at least one extended external interface, and the multi-port expansion module performs data interaction with external network devices through the extended external interface.

Specifically, the above-mentioned multi-port expansion module includes a switch chip and a network transformer, wherein the switch chip is connected to the multi-port USB control module through a USB interface, and the switch chip is expanded through the network transformer to obtain at least one extended external interface, wherein the extended external interface includes RJ45 network interface.

Specifically, the above-mentioned multi-port expansion module also includes an expansion module, which is used to provide one or more functional interfaces to realize functional expansion.

By adopting the above-mentioned technical scheme of the utility model, a multi-port USB control module that provides multiple USB interfaces bridges the data access module and the general-purpose CPU, which solves the problems of small CPU selectivity and poor scalability in the existing CPE. The CPU is required to support the MII interface, and external network devices can be connected through multiple USB interfaces of the multi-port USB control module.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Other purposes, features and effects of the present utility model will be further described in detail with reference to the drawings.

Description of drawings

The accompanying drawings constitute a part of this specification, and are used for further understanding of the utility model, showing preferred embodiments and together with the description, used to explain the principle of the utility model. In the picture:

Fig. 1 is a block diagram of a CPE structure according to the prior art;

Fig. 2 is a structural block diagram of CPE according to the utility model;

Fig. 3 is a block diagram of a CPE structure according to a preferred embodiment of the present invention;

FIG. 4 is a structural block diagram of the wireless CPE of Embodiment 1;

FIG. 5 is a structural block diagram of the wireless CPE in the second embodiment.

Detailed ways

Functional Overview

As mentioned above, the utility model proposes a CPE aiming at the problems of poor expandability of the existing CPE and high requirements on the CPU. The CPE adds a multi-port USB control module that can provide at least two or more USB interfaces on the basis of the existing CPE. The module is connected to the multi-port USB control module through a USB interface in the multi-port USB control module, and the multi-port USB control module is connected to the general-purpose CPU through a bus or a peripheral component expansion interface (Peripheral Component Interconnect, referred to as PCI), So as to exchange data.

The CPE of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

FIG. 2 is a structural block diagram of a CPE according to the present invention, and FIG. 3 is a structural block diagram of a CPE according to a preferred embodiment of the present invention. As shown in Figure 2, according to the utility model CPE comprises: data access module 21, multi-port USB control module 23 and general-purpose CPU 25 with at least two USB interfaces. Wherein, the data access module 21 is connected with the multi-port USB control module 23 by a USB interface in the multi-port USB control module 23, and the general-purpose CPU 25 is connected with the multi-port USB control module 23 by a universal bus or a PCI interface.

Further, the multi-port USB control module 23 can be connected to external network devices through one or more USB interfaces for data interaction.

Further, as shown in Figure 3, the CPE according to the present invention can also include: a multi-port expansion module 27, which is connected to the multi-port USB control module 23 through one or more USB interfaces of the multi-port USB control module 23, and the external The network device can exchange data with the CPE through the multi-port expansion module 27 .

Specifically, the multi-port expansion module 27 can include at least one extended external interface, and external network equipment can be connected to the CPE through the extended external interface. Commonly, the extended external interface can be an RJ45 interface, and the external network equipment can be expanded through the multi-port expansion module 27. The RJ45 interface is connected to the CPE for data exchange. When the expansion external interface is an RJ45 interface, the multi-port expansion module 27 includes: an exchange chip 271 and a network transformer 273, wherein the exchange chip 271 is connected with the multi-port USB control module 23 through a USB interface of the multi-port USB control module 23, and The switch chip 271 extends at least one RJ45 interface through the network transformer 273 .

Further, in order to expand the functions of the CPE, as shown in FIG. 3 , the multi-port expansion module 27 may further include an expansion module 275 for providing one or more functional interfaces to realize functional expansion. For example, the function of the router can be extended to the CPE, and the extension module 275 is used to realize the function of the router.

The working principle of the CPE of the present invention will be briefly described below in conjunction with the accompanying drawings.

The data access module 21 receives wireless data, converts it into a logic signal inside the data access module 21 , and places it in the temporary storage area of the data access module 21 . The multi-port USB control module 23 takes out the data in the data access module 21 according to the USB protocol according to the program requirements of the general-purpose CPU 25, and places it in the temporary storage area of the memory of the wireless CPE. Then perform different processing according to the connection mode with the external network device. For example, if the external network device is directly connected to the multi-port USB control module 23 in the USB mode, the general-purpose CPU 25 sends a message that data arrives to the upper end after receiving the data, and waits for the upper end to receive. If the external network equipment is connected with the RJ45 interface mode expanded by the multi-port expansion module 27, then the general-purpose CPU 25 sends the received data to the multi-port expansion module 27 through the multi-port USB control module 23 after receiving the data, and the multi-port expansion The module 27 sends the data to the upper end through the switching chip. The sending of data is similar to this, and the data to be sent by the upper end is sent to multi-port USB control module 23 through USB interface or RJ45 interface, or is sent to multi-port USB control module 23 via multi-port expansion module 27, and multi-port USB control module 23 is in Under the management of general-purpose CPU 25, data is placed in the temporary storage area of the memory of this wireless CPE, sends to data access module 21 by multi-port USB control module 23 then. The data access module 21 sends the received data to the wireless network via the wireless transceiver. Simultaneously, general-purpose CPU 25 interacts with the expanded function module in multi-port expansion module 27 by multi-port USB control module 23, under the coordination of general-purpose CPU 25, realizes the specific extension function of multi-port expansion module 27.

Through the wireless CPE based on the USB interface of the present utility model, the expandability of the wireless CPE can be improved, and the performance requirement on the general-purpose CPU can be reduced.

The specific implementation of the wireless CPE based on the USB interface of the present invention will be described below by taking the WiMAX system as an example.

Embodiment one

Fig. 4 is the structural block diagram of the wireless CPE based on USB interface of the present embodiment, as shown in Fig. 4, the wireless CPE of the present embodiment mainly comprises: WiMAX access module 41, multi-port USB control module 43, general purpose based on USB interface CPU 45 and multi-port expansion module 47. Wherein, WiMAX access module 41 is used for receiving and sending the wireless data of WiMAX, and carries out data exchange with multi-port USB control module 43 in CPE with USB interface; The interface realizes the connection and interaction of data, provides the physical link between the WiMAX access module 41 and the general CPU 45, and realizes part of the exchange function, and meanwhile, can also be connected with external network equipment through the USB interface; The interface is connected with the multi-port USB control module 43 and performs data exchange, including an external interface (such as one or more network interface RJ45) connected to at least one external network device, and the multi-port expansion module 47 can also include an external interface for realizing predetermined functions. function modules.

The wireless CPE based on the USB interface provided by this embodiment has good scalability, and can convert the output of a single port (such as RJ45) into multiple port outputs, such as RJ45, USB, etc.; Scalability has been greatly improved. At the same time, the network CPU that needs to support USB and MII interfaces is converted to a general-purpose CPU.

Embodiment two

Fig. 5 is the structural block diagram of the wireless CPE based on USB interface of the present embodiment, as shown in Fig. 5, the wireless CPE based on USB interface of the present embodiment comprises: WiMAX access module 41, general-purpose CPU 45, memory based on USB interface 49 (including random access memory (RAM) and flash memory (flash)), power supply 40, multi-port USB control module 43 and multi-port expansion module 47 six parts, wherein, the multi-port expansion module 47 includes a switching chip, the switching chip Connect with a network switch to expand multiple RJ45 network interfaces. In the wireless CPE, the uplink and downlink of wireless data is received and sent through the WiMAX access module 41, and these data are transmitted through the multi-port USB control module 43 and the general CPU45 Interaction, after the general CPU 45 processes these data, it is transmitted to the output USB interface by the multi-port USB control module 43 for output, or transmitted to the expansion interface module 47, and then according to the interface required, such as by switching chips, connected to the outside On the network interface (RJ45), so as to realize the access of wireless data.

The above-mentioned embodiment is described with the WiMAX system as an example, but it is not limited thereto. For other communication systems that provide wireless access functions, such as WCDMA, TD-SCDMA, CDMA-EVDO and GSM, the technical solution of the present utility model can also be used , to obtain wireless data CPE terminal products suitable for these communication systems.

In addition, the above-mentioned multi-port expansion module can also provide other interfaces besides the RJ45 interface, such as 1394 interface, etc., and various interface types can be added according to requirements. During design, relevant interfaces are connected to corresponding external circuits and control chips, and then connected to the multi-port USB control module to realize different interface designs.

By means of the wireless CPE based on the USB interface provided by the utility model, different interface networks can be supported, which improves the flexibility and expansibility of the wireless CPE; and, because the processor of the utility model communicates with multiple It is connected with the USB control module of the USB port, therefore, there are less restrictions on the options of the CPU, which reduces the difficulty of options and improves the versatility of the CPU; in addition, the wireless CPE provided by the utility model has extended functional modules, which can realize multi-function expand.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. A client device, comprising: a data access module and a general-purpose processor, characterized in that, the client device also includes: a multi-port USB control module with at least two USB interfaces, wherein the data interface The input module is connected to the multi-port USB control module through a USB interface of the multi-port USB control module, and the general processor is connected to the multi-port USB control module through a general-purpose bus or a PCI interface. 2. The client device according to claim 1, wherein: The multi-port USB control module is connected with external network devices through one or more USB interfaces. 3. The client device according to claim 1, wherein the client device further comprises: The multi-port expansion module is connected to the multi-port USB control module through one or more USB interfaces of the multi-port USB control module. 4. The client device according to claim 3, wherein the multi-port expansion module comprises: at least one extended external interface, and the multi-port expansion module performs data interaction with external network devices through the extended external interface . 5. The client device according to claim 4, wherein: The multi-port expansion module includes: a switch chip and a network transformer, wherein the switch chip is connected to the multi-port USB control module through the USB interface, and the switch chip is expanded to obtain the at least An extended external interface, wherein the extended external interface includes: an RJ45 network interface. 6. The client device according to claim 3, wherein the multi-port expansion module comprises: an expansion module, configured to provide one or more functional interfaces to implement functional expansion.

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