CN201001180Y - a wireless communication device - Google Patents

Abstract

The utility model discloses a wireless communication device. The wireless communication device includes: a baseband unit, located in the host of the wireless communication device, for processing baseband signals; a radio frequency unit, replaceably connected to the host, for receiving radio frequency signals corresponding to the radio frequency band and spectrum template, and communicating with the baseband unit for signal transmission. The utility model separates the radio frequency unit from the main equipment, and sets its interface with the baseband unit in the main equipment, so that the wireless communication equipment can select a replaceable radio frequency unit according to the use requirements to realize wireless access, and enhances the application flexibility of the communication terminal performance, reducing the weight and volume of the main equipment.

Description

a wireless communication device

technical field

The utility model relates to a wireless communication system, in particular to a wireless communication device.

Background technique

In a wireless communication system, wireless communication devices within the coverage of a cell communicate through electromagnetic waves. In the spectrum range or spectrum bandwidth allocated to a wireless communication device, it can be divided into different carrier frequencies, thereby generating communication channels of different frequencies.

For a wireless standard technology, in order to perform global wireless roaming, the biggest challenge is usually to require all countries to have a unified frequency band and a similar spectrum template. However, different countries have different frequency band requirements and different radio frequency management regulations; sometimes, even if different countries have the same frequency band, they may have different requirements for spectrum templates. Therefore, the above-mentioned challenges are usually not successfully realized. This often results in that communication equipment that can be used in one country cannot be used in another country due to different radio frequency bands or different spectrum template requirements.

For wireless standards that can support different frequency bands, although the design of the baseband part of wireless devices based on this standard can be the same, only one RF front-end design cannot meet the requirements of all frequency bands and spectrum templates.

At present, the solution to this problem is to use a terminal that supports dual-band, triple-band, or even quad-band, for example, a triple-band GSM mobile phone. However, this solution is not ideal and typically increases the size, cost, and power consumption of the terminal.

Therefore, a design solution for a wireless communication device is needed to meet the application requirements of multi-band and multi-spectrum templates.

Utility model content

The main purpose of the utility model is to provide a wireless communication device, which is used to enable the wireless communication device to support multi-frequency bands and multi-spectrum template requirements with relatively small volume and power consumption.

In order to achieve the above purpose, according to the first aspect of the utility model, the utility model provides a wireless communication device. The wireless communication device includes: a baseband unit, located in a host of the wireless communication device, for processing baseband signals; a radio frequency unit, replaceably connected to the host, for receiving radio frequency signals corresponding to radio frequency bands and spectrum templates, and communicating with The baseband unit performs signal transmission.

The interface between the baseband unit and the radio frequency unit may be a standardized interface or a dedicated interface.

The wireless communication device includes at least one radio frequency unit, configured to support at least one radio frequency band and spectrum template. A wireless communication device includes at least one baseband unit for supporting at least one wireless technology.

The signals transmitted between the baseband unit and the radio frequency unit may include, but are not limited to, the following signals: baseband signals of the receiving path, baseband signals of the transmitting path, radio frequency digital control signals, analog measurement and control signals, and power supply signals.

In order to achieve the above purpose, according to the second aspect of the utility model, the utility model provides a baseband unit for a wireless communication device. The baseband unit is located in the host of the wireless communication device and is used for processing baseband signals. When the replaceable radio frequency unit for receiving radio frequency signals corresponding to the radio frequency band and spectrum template is connected to the host, the baseband unit and the radio frequency unit perform signal transmission .

The interface between the baseband unit and the radio frequency unit may be a dedicated interface or a standardized interface.

A wireless communication device includes at least one baseband unit for supporting at least one wireless technology.

In order to achieve the above object, according to the third aspect of the utility model, the utility model provides a radio frequency unit for a wireless communication device. The radio frequency unit is replaceably connected to the host of the wireless communication device, and is used to receive radio frequency signals corresponding to the radio frequency band and spectrum template. The host has a baseband unit for processing baseband signals. When the radio frequency unit is connected to the host, the radio frequency unit Signal transmission with the baseband unit.

The interface between the radio frequency unit and the baseband unit may be a dedicated interface or a standardized interface.

The wireless communication device includes at least one radio frequency unit, configured to support at least one radio frequency band and spectrum template.

Through the above technical solution, the utility model separates the radio frequency unit from the main device, and sets its interface with the baseband unit in the main device, so that the wireless communication device can select a detachable radio frequency unit according to the use requirements to realize wireless access, which enhances communication The application flexibility of the equipment reduces the weight and volume of the main equipment.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a block diagram of a wireless communication device according to the present invention;

FIG. 2 is a schematic diagram of a traditional wireless communication device;

3 is a schematic diagram of a wireless communication device according to an embodiment of the present invention;

4 is a schematic diagram of signal communication of a wireless communication device according to an embodiment of the present invention; and

Fig. 5 is a schematic diagram of a connector of a wireless communication device according to an embodiment of the present invention.

Detailed ways

The utility model will be described in detail below with reference to the accompanying drawings.

Referring to Fig. 1, the wireless communication device 10 according to the present utility model includes: a baseband unit 20, located in the host of the wireless communication device 10, for processing baseband signals; a radio frequency unit 30, replaceably connected to the host, for corresponding Receive radio frequency signals in radio frequency bands and spectrum templates (a frequency band corresponds to multiple spectrums, and each different frequency band and spectrum corresponds to a radio frequency module 30 ), and perform signal transmission with the baseband unit 20 .

The interface between the baseband unit 20 and the radio frequency unit 30 may be a standardized interface or a dedicated interface.

The wireless communication device 10 includes at least one radio frequency unit 30, configured to support at least one radio frequency band and spectrum template. The wireless communication device 10 includes at least one baseband unit 20 for supporting at least one wireless technology.

The signals transmitted between the baseband unit 20 and the radio frequency unit 30 may include, but are not limited to, the following signals: baseband signals of the receiving path, baseband signals of the transmitting path, radio frequency digital control signals, analog measurement and control signals, and power supply signals.

According to the utility model, the baseband unit 20 for the wireless communication device 10 is located in the host computer of the wireless communication device 10, and is used for processing the baseband signal. When the unit 30 is connected to the host, the baseband unit 20 and the radio frequency unit 30 perform signal transmission.

The interface between the baseband unit 20 and the radio frequency unit 30 may be a dedicated interface or a standardized interface.

The wireless communication device 10 includes at least one baseband unit 20 for supporting at least one wireless technology.

According to the utility model, the radio frequency unit 30 used in the wireless communication device 10 is replaceably connected to the host of the wireless communication device 10, and is used to receive radio frequency signals corresponding to the radio frequency band and the spectrum template, and the host has processing functions for baseband signals The baseband unit 20, when the radio frequency unit 30 is connected to the host, the radio frequency unit 30 and the baseband unit 20 perform signal transmission.

The interface between the radio frequency unit 30 and the baseband unit 20 may be a dedicated interface or a standardized interface.

The wireless communication device 10 includes at least one radio frequency unit 30, configured to support at least one radio frequency band and spectrum template.

The utility model relates to a technique for separating a radio frequency module and a baseband module of a wireless communication device. The utility model proposes to separate the radio frequency module from the wireless communication main equipment, the main equipment may only include the design of the baseband part, and the separated radio frequency module can be conveniently connected with the main equipment. The main wireless communication device here may be a mobile phone, a notebook computer, a PDA, and the like. In this way, separate radio frequency modules can be implemented by different equipment manufacturers. The interface between the separate radio frequency module and the baseband part of the main device can be private, or standardized by the product, or unified globally. In the utility model, the separated radio frequency module at least includes the design of a complete transceiver, including up-conversion and down-conversion between the baseband signal and the radio frequency signal; and the baseband signal processing unit (i.e. the baseband modem) is located in the main device, such as Portable notebook computer or PDA.

The master device may include one or more baseband signal processing units (ie, baseband modems), which are respectively used to process different wireless technologies. Moreover, the master device can work with different radio frequency modules by setting related configurations, so as to implement different wireless access technologies.

The design of the enhanced radio frequency front end (radio frequency front end comprising radio frequency module and antenna) that the utility model proposes to support multi-band and multi-spectrum template requirements includes:

1) The radio frequency module can be separated from the main device, and similar to the use of pluggable USB devices in laptops, it can be replaced by users according to the needs of different regions;

2) Separate the RF module from the digital unit, so that users can choose a dedicated RF front-end according to the needs of different regions;

3) The interface between the detachable radio frequency front end and the baseband part is based on a standardized interface, so that the radio frequency unit and the baseband unit can be implemented by different equipment manufacturers.

In the first embodiment of the present invention, as a part of the whole wireless communication device, the radio frequency transceiver adapter consists of radio frequency circuits enclosed in a detachable module. The wireless communication device here may be a smart phone, a portable computer with built-in wireless access, a wireless PDA, and the like.

The main device, such as a portable computer or a PDA, may include one or more baseband signal processing units (ie, modems), which are respectively used to process different wireless technologies. Moreover, the main device can work with different radio frequency modules by setting related configurations to implement different wireless access technologies.

For example, in the frequency spectrum and bandwidth specified by the WiMAX Forum, there are five radio frequency bandwidth sets, which correspond to different system frequency bands and channel bandwidths, as described in detail below.

Band Class 1 2.3-2.4GHz 8.75MHz BCG 1A

Band Class 1 2.3-2.4GHz 5/10MHz BCG 1B

Band Class 2 2.305-2.320, 2.345-2.360GHz 3.5MHz BCG 2A

Band Class 2 2.305-2.320, 2.345-2.360GHz 5MHz BCG 2B

Band Class 2 2.305-2.320, 2.345-2.360GHz 10MHz BCG 2C

Band Class 3 2.496-2.69GHz 5/10MHz BCG 3A

Band Class 4 3.3-3.4GHz 5MHz BCG 4A

Band Class 4 3.3-3.4GHz 7MHz BCG 4B

Band Class 4 3.3-3.4GHz 10MHz BCG 4C

Band Class 5 3.4-3.8GHz 5MHz BCG 5A

Band Class 5 3.4-3.6GHz 5MHz BCG 5AL

Band Class 5 3.6-3.8GHz 5MHz BCG 5AH

Band Class 5 3.4-3.8GHz 7MHz BCG 5B

Band Class 5 3.4-3.6GHz 7MHz BCG 5BL

Band Class 5 3.6-3.8GHz 7MHz BCG 5BH

Band Class 5 3.4-3.8GHz 10MHz BCG 5C

Band Class 5 3.4-3.6GHz 10MHz BCG 5CL

Band Class 5 3.6-3.8GHz 10MHz BCG 5CH

In the wireless communication device 101 shown in FIG. 2 , the radio frequency module 103 and the baseband module 104 are both integrated in the same wireless communication device 101 . The antenna 102 is connected to the radio frequency module 103 for transmitting and receiving signals. The baseband module 104 is connected to the connector 106 and connected to the outside through a standard interface. The wireless communication device 101 also includes other functional modules 105 for implementing functions other than the radio frequency module 103 and the baseband module 104 .

Most WiMAX devices are similar to the wireless communication devices shown in Figure 2, and all of them include a radio frequency module and a baseband module in one device. Thus, devices designed for one frequency band and channel bandwidth will generally not work properly in other frequency bands and channel bandwidths. The main reasons include different frequency ranges from 2.3GHz to 3.8GHz; different channel bandwidths, including 5MHz, 7MHz, 8.75MHz, and 10MHz; and different spectrum templates required by different spectrum regulations. Due to these different radio frequency requirements mentioned above, it is almost impossible to design a WiMAX device that can work in different countries and different radio frequency requirements.

The utility model proposes a design that can solve this problem. As shown in Figure 3, the radio frequency module is separated from the main device, and the radio frequency module can be replaced to meet different frequency band requirements. The radio frequency part 201 including the radio frequency module 204 is separated from the main device 202 ; the baseband part 207 and the chip including the modem remain in the main device 202 . The radio frequency part 201 can be connected and assembled with the main device 202 through the connector 205 . The master device 202 and the slave device 201 including the radio frequency module 204 can provide necessary support for reliable connection between the two parties through the connector.

Shown in Fig. 4 is the second embodiment of the present utility model. The communication between the separate radio frequency module and the baseband module of the main device is done through the connector. Signals passing through the connector may include, but are not limited to: baseband signals of the receive path, baseband signals of the transmit path, radio frequency digital control signals, analog measurement and control signals, and power supply signals. The interface between the radio frequency module and the baseband module can be standardized.

Figure 5 shows the connectors between the separate radio frequency module and the baseband module of the main device. The connectors are respectively connected to the radio frequency module and the baseband module, and provide an interface for connecting the radio frequency device to the main device.

The connector mainly includes a sending signal processing unit, a receiving signal processing unit, a control signal processing unit, and a high-speed digital interface. The sending signal processing unit, receiving signal processing unit, and control signal processing unit are respectively connected to the high-speed digital interface, and mainly complete functions such as the conversion of sending signals, receiving signals and control signals, such as the conversion of signal protocols, etc., and convert various signals into standard interface signal. The converted interface signals are passed through the high-speed digital interface to the equivalent connector. The master device including the baseband module sends baseband information to the radio frequency device through the sending signal processing unit. Through the receiving signal processing unit, the master device including the baseband module receives the baseband information from the radio frequency device. The master device and the radio frequency device transmit control information through the control signal processing unit, and the control information may include radio frequency digital control information, analog measurement control information, clock synchronization information, and the like.

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 (11)

1. a Wireless Telecom Equipment is characterized in that, comprising:

Base Band Unit is arranged in the main frame of described Wireless Telecom Equipment, is used to carry out the processing of baseband signal;

Radio frequency unit is connected to described main frame replaceablely, is used for corresponding to radio frequency band and spectrum mask received RF signal, and carries out the signal transmission with described Base Band Unit.

2. Wireless Telecom Equipment according to claim 1 is characterized in that, the interface between described Base Band Unit and the described radio frequency unit is standard interface or special purpose interface.

3. Wireless Telecom Equipment according to claim 1 is characterized in that, described Wireless Telecom Equipment comprises at least one described radio frequency unit, is used to support at least a radio frequency band and spectrum mask.

4. Wireless Telecom Equipment according to claim 1 is characterized in that, described Wireless Telecom Equipment comprises at least one described Base Band Unit, is used to support at least a wireless technology.

5. Wireless Telecom Equipment according to claim 1, it is characterized in that the signal that transmits comprises between described Base Band Unit and described radio frequency unit: receive the baseband signal of path, baseband signal, radio-frequency (RF) digital control signal, analogue measurement and control signal, the power supply signal of emission path.

6. Base Band Unit that is used for Wireless Telecom Equipment, it is characterized in that, described Base Band Unit is arranged in the main frame of described Wireless Telecom Equipment, be used to carry out the processing of baseband signal, when being used for replaceable radio frequency unit corresponding to radio frequency band and spectrum mask received RF signal and being connected to described main frame, described Base Band Unit and described radio frequency unit carry out the signal transmission.

7. Base Band Unit according to claim 6 is characterized in that, the interface between described Base Band Unit and the described radio frequency unit is special purpose interface or standard interface.

8. Base Band Unit according to claim 6 is characterized in that, described Wireless Telecom Equipment comprises at least one described Base Band Unit, is used to support at least a wireless technology.

9. radio frequency unit that is used for Wireless Telecom Equipment, it is characterized in that, described radio frequency unit is connected to the main frame of described Wireless Telecom Equipment replaceablely, be used for corresponding to radio frequency band and spectrum mask received RF signal, the Base Band Unit that has the processing that is used to carry out baseband signal in the described main frame, when described radio frequency unit was connected to described main frame, described radio frequency unit and described Base Band Unit carried out the signal transmission.

10. radio frequency unit according to claim 9 is characterized in that, the interface between described radio frequency unit and the described Base Band Unit is special purpose interface or standard interface.

11. radio frequency unit according to claim 9 is characterized in that, described Wireless Telecom Equipment comprises at least one described radio frequency unit, is used to support at least a radio frequency band and spectrum mask.

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