WO2008037109A1 - A transceiver, wireless communication device and wireless communication method - Google Patents

A transceiver, wireless communication device and wireless communication method Download PDF

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Publication number
WO2008037109A1
WO2008037109A1 PCT/CN2006/002486 CN2006002486W WO2008037109A1 WO 2008037109 A1 WO2008037109 A1 WO 2008037109A1 CN 2006002486 W CN2006002486 W CN 2006002486W WO 2008037109 A1 WO2008037109 A1 WO 2008037109A1
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WO
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Patent type
Prior art keywords
wireless communication
signal
wireless
wireless network
slot
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PCT/CN2006/002486
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French (fr)
Chinese (zh)
Inventor
Kan Lu
Chongjun Jiang
Michael Chen
Bin Xu
Yiyan Tang
Huiyong Hong
Feng Wu
Shuangli Wu
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3Dsp(Beijing)Limited Corporation
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0008Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A transceiver, wireless communication device and wireless communication method. The method is based upon a wireless communication device including a transceiver (100, 200, 300, 505) and a host. The transceiver (100, 200, 300, 505) includes an antenna (101, 201), a radio-frequency unit (102, 202) and a baseband processing unit (105, 205, 305, 510) at least. The method is: setting the wireless communication device via a human-computer interface (501) of the host, in which setting the device means setting the wireless communication device in order to make many kinds of wireless networks work together at the same time or just one kind of wireless network work; according to the setting, the wireless communication device receives and transmits a wireless network signal via the transceiver (100, 200, 300, 505). The invention makes the transceiver including many kinds of wireless networks use a common radio-frequency unit, and have many advantages such that saving hardware resource, simplifying hardware structure, and shortening tuning time of hardware etc.

Description

A single-transceiver wireless communication device and wireless communication method Technical Field

The present invention relates to a wireless communication network, in particular, it relates to the coexistence of multiple wireless communication networks, in particular, to a single transceiver, a wireless communication device and wireless communication method. With the development of wireless communication technology, wireless networks form a variety of protocol specification, such as IEEE802 il and "Bluetooth" (BT: Bluetooth). Protocols such co-exist and complement each other's situation. In the case of non-standardized wireless information transmission network to meet a variety of needs, hoping to intentionally interoperability between various wireless networks, enabling anytime, anywhere, to transmit information with anyone. For example, if people want to wear ordinary "Bluetooth" headset over a wireless local area network (WLAN: Wireless Local Area Networks) implement VoIP / VoWLAN, then, at least two wireless networks, WLAN and "Bluetooth", to work simultaneously without interference. To achieve the above functions, generally also have a need for an apparatus and WLAN ",, Bluetooth function, the contact (AP: Access Point) having one end connected to WLAN, the other end" ,, Bluetooth headset, WLAN and to coordinate and "Bluetooth" network At the same time work without interference, in order to achieve interoperability between WLAN and "Bluetooth" network information, especially voice / audio.

In the case of WLAN networks and "Bluetooth" networks coexist described drawbacks of the prior art exists. "Bluetooth" is a short-range wireless communications technology, its main features as robustness, low power and low cost. WLAN networks is a widely used local area network technology between computers, computer peripherals, memory, and a wireless network connection device, such as IEEE802. Lla, IEEE802. Lib and IEEE802. Llg wireless protocols.

As WLAN and ' "Bluetooth" 2. 4GHz typically operate at the industrial, scientific, medical (ISM) band, while the use of overlapping frequency P i, if there is no coordination mechanism, and WLAN "Bluetooth" network will interfere with each other, especially in that have both WLAN and "Bluetooth" function, for example, having a WLAN and "Bluetooth" enabled laptop / handheld terminal, WLAN and "Bluetooth" short distance a respective transceiver, WLAN transmit signal will seriously affect the "Bluetooth "receiving, and vice versa.

For this reason, it is proposed to address the "Bluetooth ,, and WLAN bands in various scenarios coexist ISM, including coordination mechanisms and non-cooperation mechanism into two categories. As in" adaptive frequency hopping using Bluetooth "in the

(AFH: Adapt ive Frequency Hopping) and an adaptive packet scheduling scheme is a non-cooperative mechanism; whether the hardware level or link level of the driver stage time division multiplexing (TDM: Time Divi s ion Mul t iplex) scheme belong to collaborate mechanism. Typically, in a device, if the WLAN and "Bluetooth" are two separate hardware / firmware / software module, usually non-cooperative coexistence mechanism; WLAN and if the "Bluetooth" common part or all of the hardware modules, or by hardware circuit, link control, protocol driver level, or WLAN, and the "Bluetooth" modules together, send and receive control information exchange, is used coexistence collaboration.

To achieve interworking between the WLAN and a voice "Bluetooth" and to meet real-time requirements, the prior art, "Bluetooth" in two modes: first, the use of "Bluetooth" specification that is some connection-oriented synchronous / the extended synchronous connection oriented (SCO / eSCO: synchronous connect ion-Or iented I extended synchronous connect ion-Or iented) ^ k voice transmission path; second, using voice compression techniques, the asynchronous non-connection (ACL:. asynchronous Connect ion - Less) voice link transceiver. Among them, the first model need to give time window "Bluetooth" module is assigned a specific period, although "Especially usual ,, Bluetooth device," Bluetooth "compatible with the existing voice function headset, but only on WLAN gap SC0 / eSC0 links work, flexible allocation and timing time window switching and timing difficult. the second model, although easier time window, but it is difficult with the general "Bluetooth" headset voice interoperability.

Further, even in the same device, multiple wireless network protocols, such as the WLAN, "Bluetooth" and IEEE802 15. 4, due to the large difference in physical layer specification, they are substantially different application specific integrated circuit (ASIC: Appl icat ion Specif ic Integrated Circui t) is achieved. The more integrated wireless network protocols, the more complicated coordination and control functions, each additional function in a wireless network often need to increase and modify the appropriate number of existing integrated circuit module circuit board, and will thus cause the device hardware complexity and greatly increased the cost. In view of the various wireless protocols in the prior art non-intrusive coexistence complexity and high cost, the present invention provides a single transceiver, a wireless communication device and wireless communication method.

The present invention provides a method of wireless communication, including wireless communication devices on a single host device and a transceiver, said transceiver means comprise at least a single antenna, a radio frequency unit and a baseband processing unit, the method comprising: man-machine interface of the host the wireless communication device is provided, wherein the device is provided means, wireless communication device to simultaneously or more wireless networks arranged to only one wireless network operating a wireless communication device;

Depending on the setting, the wireless communication device to receive and transmit signals through a single wireless network transceiver.

According to this method, when the wireless communication device to the wireless communication device of multiple wireless networks simultaneously, the baseband processor and a plurality of function switching network time slot allocation unit and the time slot scheduling function implemented by the coordinator.

According to this method, the wireless communication device receiving signals through a single wireless network transceiving means, comprising the steps of:

Step 1, the respective slot antenna receiving signals and wireless network signal to the radio frequency unit;

Step 2, the radio frequency unit of the received signal is processed by analog to digital conversion is transmitted to the baseband processing unit;

Step 3, the baseband processing unit receives the signal analog to digital conversion, the baseband processing in the corresponding time slot corresponding to the signal and outputs to the host.

According to this method, the wireless communication device transmits signals to the network through a single radio transceiver, comprising the steps of:

The baseband processing unit receiving host wireless data network, the corresponding baseband wireless network corresponding to the radio frequency time slot and outputting the digital-analog conversion unit;

After the radio frequency unit of the digital to analog signal conversion processing, transmission to the antenna, the radiation from the antenna to the air.

According to this method, using time division multiplexing of multiple wireless network signal switching function and slot allocation; is the time division multiplexing: a fixed-length slot assignment embodiment, the variable-length slot allocation, based on the needs of slot allocation, based on a priority of the time slot allocation of one or more.

According to this method, the fixed-length slot allocation means: operating the wireless communication device is divided into fixed-length time slots, slot length depending on the application; each, each wireless network can occupy one or more successive time slots for transmitting or receiving, and switching between the wireless network occurs on the edges of the slot.

According to this method, the variable-length slot allocation means: the runtime wireless communication device is divided into variable length time slots; each, each wireless network may occupy one or more time slots to transmit or receive, and a time point of switching between the wireless network is not always fixed in the edge of the slot, and the slot length is adjusted by the real-time requirements.

According to this method, based on the needs of the slot allocation means: every time the wireless network obtained by competitive manner.

According to this method, the priority-based time slot allocation means: every time the wireless network obtained by competitive manner, wherein for each of or a group of operating a wireless network are given different priorities.

According to this method, the function switching mechanism comprising at least: a seamless switch to ensure that data packets in the transmit slot allocation is completed, to ensure that the received packet is completed within the allocated time slot and time slot alignment.

According to this method, when the wireless communication device to switch from the current wireless network to another wireless network, the seamless switching means:

The single transceiver to suspend the operation of the current wireless network sends a signal to the upper layer and stores information;

The wireless communication device to switch from the current wireless network to another wireless network;

The wireless communication device transmits a data packet to the current wireless network, other wireless communication device to block the current wireless network transmitting the current data to the wireless network during a single transceiver means another wireless network operation.

According to this method, when the total length of the transmit data packet and associated processing time exceeds a pre-assigned time slot, the packet is transmitted to ensure the completion of the allocated time slot employed in a manner to: discard the data packet, and so the next time slot, transmitting from the start end of the packet slots, increase the transmission rate of the data packet, re-allocate more time slots for transmitting the current, the current elongated slot to accommodate a data packet length of the embodiment in one or several.

According to this method, when the operation time and the related time received packet exceeds a pre-allocated timeslot, the task is completed to ensure reception methods used in a reserved time slot: discard the data packet, to allocate more the slots for receiving elongated slot to accommodate the current length of one or several of the ways in the data packet.

According to this method, the calibration slot comprises time slot synchronization and alignment calibration rim.

According to this method, when the wireless communication device is provided simultaneously as a wireless LAN and a Bluetooth network, using any one of the following ways: a wireless LAN to avoid spoofing reduce the transmission rate between the "access point" to the mobile terminal ; in Bluetooth network time slot for the wireless LAN is in sleep mode WLAN basic service set; dynamic transmit power control Bluetooth network to avoid interference;

Dynamic control of receiver sensitivity in order to avoid receiving unwanted wireless LAN Bluetooth network in order to leave more job opportunities;

And filtered through a part of the ID number received packet inspection;

Extracting a signal from the Bluetooth network, wireless local area network of the interference;

Transmission rate and the packet length control slot length to better fit the allocated; wireless communication device to select the better performance of wireless LAN access points.

The present invention also provides a wireless communications device, includes a host and at least a single transceiver, which includes a main control unit, a memory, man-machine interface; wherein,

Single transceiver, the wireless communication device is provided according to a user setting or default, receive and transmit at least two wireless network signal;

A memory, connected with the control unit, for a wireless communication device for storing a user selection menu to select at least two wireless networks, wireless networks and the upper layer protocols, software drivers and HMI; man-machine interface for the wireless communication device user through the memory selection menu stored on a single transceiver function is provided;

A control unit for controlling, receiving wireless communication device user is provided, and transmits the setting information to the single transceiver; single transceiver under the control of the control unit, for at least two wireless network signal switch function and a slot allocation; arranged to receive and transmit the user signal corresponding to a wireless network, wireless network and process the signals in the wireless network and outputs a signal corresponding to the time slot.

The single transceiver, a radio frequency unit, the baseband processing unit includes an analog-digital and digital antenna; wherein,

An antenna for receiving a signal transmitted from the at least two radio network and sent to the radio frequency unit; radio frequency signal receiving unit transmits to air and radiation;

A radio frequency unit, the signal transmitted by the wireless network at least two receiving antennas and transmission processing and send it to the baseband processing unit via the analog to digital converter; baseband processing unit after receiving the signal transmitted by the digital-analog converter, the processing to transfer antenna;

The baseband processing unit through an interface with the radio frequency unit and a host, according to manually set the default settings or host, for at least two wireless networks and the time slot allocation function switch, RF wireless network signal receiving unit is transmitted, the wireless network signal time slot corresponding to the wireless network signal, and outputs the baseband processing corresponding to the host; receiving a command sent by the host or a wireless data network, corresponding to the wireless network baseband processing data in the corresponding slot and outputs it to the said radio frequency unit; or for any signal processing in a wireless network.

The baseband processing unit comprises at least: a coordinator function scheduling and time slots, the baseband signal processor; wherein,

Scheduling and time slots coordinator function, in accordance with the default settings manually set or host, wireless network signal switching function and slot allocation;

The baseband signal processor, under control of scheduling and time slots coordinator, receiving a radio frequency signal units transmitted over the wireless network, the corresponding baseband signal to the radio network in the radio network, and outputs a signal corresponding to a time slot to the host; receiving instructions or wireless network data sent by the host, in the corresponding slot of the wireless network baseband processing and outputs the data corresponding to the radio frequency unit; or for any signal processing in a wireless network.

Further comprising a digital memory, and the baseband signal processor connected to the processor for storing data received and processed signal to the baseband.

The baseband processing unit further includes a digital filter connected to the analog to digital converter and a baseband signal processor for receiving from the radio unit to a wireless network by an analog signal is filtered and transmitted to the baseband signal processing device.

In the case of a wireless LAN and Bluetooth networks coexist, the filter comprising: a digital IF down converter, and a finite impulse response filter connected to the drive IF response digital low pass filter and second order low pass infinite impulse connected thereto ; wherein,

Digital IF downconverter, the signal after conversion from analog to digital conversion at intermediate frequency to baseband, low pass filter process continues prefiltered signal from the baseband finite impulse response, then the response by the second order low pass filter is an infinite impulse filtered.

The function and the time slot scheduling coordinator time multiplex manner on the wireless network signal switching function and timeslot allocation.

The present invention also provides a single transceiver, comprising analog to digital and digital to analog converter, further comprising at least: an antenna, an RF unit, a baseband processing unit; wherein,

An antenna for receiving a signal transmitted from the at least two radio network and sent to the radio frequency unit; radio frequency signal receiving unit transmits to air and radiation;

A radio frequency unit, the signal transmitted by the wireless network at least two receiving antennas and transmission processing and send it to the baseband processing unit via the analog to digital converter; baseband processing unit after receiving the signal transmitted by the digital-analog converter, the processing to transfer antenna;

The baseband processing unit through an interface with the radio frequency unit and a host, according to manually set the default settings or host, for at least two wireless networks and the time slot allocation function switch, RF wireless network signal receiving unit is transmitted, the wireless network signal time slot corresponding to the wireless network signal, and outputs the baseband processing corresponding to the host; receiving a command sent by the host or a wireless data network, corresponding to the wireless network baseband processing data in the corresponding slot and outputs it to the said radio frequency unit; or for any signal processing in a wireless network.

Advantageous effects of the present invention is that, by the process of the present invention, the transceiver means of the single multiple wireless networks coexist to achieve savings of hardware resources, to simplify the hardware structure, hardware commissioning times; simplify the interface when multiple wireless networks coexist; may be employed firmware / software resource scheduling time, more flexibility and control slot allocation, time slots, and calibration function switch; may employ firmware / software baseband link control and easier to debug and system upgrade. BRIEF DESCRIPTION

Figure 1 is a schematic view of the structure of a single transceiver invention;

A single transceiver schematic configuration example of the embodiment 2 of the present invention;

FIG 3 is a schematic of another embodiment of the invention, a single transceiver structure;

4 is a schematic view of a filter structure for processing a single Bluetooth transceiver signal shown in FIG. 3;

5 a schematic diagram of a wireless communication device structure according to the present invention;

FIG 6A is a schematic diagram of a single transceiver hours embodiment of the present invention;

FIG 6B is a schematic diagram of the fixed-length slot assignment embodiment of the present invention; FIG. 6C is a schematic diagram of the variable length time slot assignment embodiment of the present invention; FIG. 7 of the present invention supports both WLAN and "Bluetooth" network a schematic view of a wireless communication device; FIG. 8 embodiment the wireless communication device application scenario of a schematic embodiment of the present invention;

Example 9 Another application scenario is a schematic diagram of a wireless communication device embodiment of the present invention. detailed description

The present invention provides a single transceiver, a wireless communication device and wireless communication method.

If the conventional wireless communications device to achieve a variety of wireless network function, or a variety of different wireless transceiver based on the network protocols need to be installed to a wireless network having a plurality of functions, or integrated transceiver installed to the plurality of wireless network hardware module with a variety of wireless networking.

However, the wireless communication apparatus according to the present invention requires only a single transceiver mounted on the wireless network includes a plurality of functions. The device requires only a single transceiver hardware modules can achieve a variety of wireless networking, i.e. each hardware module comprises an antenna, a radio frequency unit, a baseband processing unit. In the prior art, and to achieve at least a WLAN "Bluetooth ,, requires two different radio units, two different sets of baseband processing units, and the present invention may employ at least an identical radio unit (a baseband processing unit for different radio different network) and WLAN can be achieved "Bluetooth"; in addition, an identical except addition of radio frequency unit, may be used a same baseband processing unit (mainly identical hardware, the firmware / software is different) WLAN can achieve and "Bluetooth." · Meanwhile, a single transceiver may also be configured as a single host functions work, unlike the prior art, since a single transceiver may be configured to WLAN functionality, may be arranged "Bluetooth" function, and a conventional transceiver, because different hardware required to implement, thus either WLAN, either "Bluetooth", can not be arbitrarily configured into different wireless networking.

And the present invention, when performing radio communication, but also provides a useful embodiment of the respective wireless communication method, i.e., time division multiplexing, the switching mechanism functions to improve the performance of other ways to solve when multiple wireless networks using the same hardware after communication problems, but also solve the problem in a variety of wireless networks simultaneously completely or partially overlapping frequency bands with mutual interference.

WLAN and to achieve the following "Bluetooth" two kinds of wireless networks will be described an embodiment of the present invention, a single transmitter-receiver, a wireless communication device and wireless communication method.

Example a

The present invention provides a single transceiver shown in Figure 1, the present embodiment a single transceiver embodiment of the present invention, comprising: analog to digital converter (ADC) 103 and digital to analog converter (DAC) 1 04, further comprising at least : antenna 101, a radio unit 102, a baseband processing unit 105; wherein,

An antenna 101 for receiving a WLAN or "Bluetooth" electromagnetic signal in the air and transferred to the radio frequency unit 102; receiving a radio frequency signal transmitting unit 102 and radiated into the air;

A radio frequency unit 102, WLAN or "Bluetooth" signal receiving antenna 101 transmits and amplifies, downconverts, and filtering process, and then transmitted to the baseband processing unit 105 ADC103 after analog-converts the analog signal into a digital signal; receiving DAC 104 converts a digital baseband signal transmitting unit 105 into an analog signal, filtered, transferred to the baseband processing unit 105 02 486 days after conversion and amplification processing, etc., through the first, the second interface RF unit 102 and a host, the host according to the setting / control, WLAN and "Bluetooth" two kinds of wireless networks and the time slot allocation function switching, data set or before the host Gen only WLAN or "Bluetooth" radio signals processing; when set to the above WLAN and "Bluetooth" two wireless networks, WLAN or "Bluetooth" radio frequency signal receiving unit 102 is transmitted, a baseband signal in a time slot corresponding WLAN or "Bluetooth" and outputs it to the work host; receiving host instructions or WLAN transmission / "Bluetooth" data, corresponding to the WLAN baseband / ",, Bluetooth data in the respective slot Processing and output to the RF unit 102.

Hereinafter, the operation of the above single-transceiver apparatus 100 will be described.

Receiving process, comprising the steps, Step 1, the antenna 101 receives a WLAN or "Bluetooth" radio frequency signal and transmitted to the unit 102; Step 2, the RF unit 102 amplifies the received signal, downconverts, and filtering process, by after analog to digital converter 103 is transmitted to analog to digital baseband conversion unit 105; step 3, the signal baseband processing unit 105 receives the analog to digital conversion, and output to the host after the corresponding baseband.

Transmission process, comprising the steps of:

Receive WLAN baseband processing unit 105 or the "Bluetooth" data from the host, the corresponding baseband, after analog conversion by the DAC 104 outputs to the radio frequency unit 1 G2; RF unit 102 performs received signal after filtering, amplification and up-conversion processing to the transmission antennas 101, 101 and then radiated by the antenna to the air. The single-transceiver, the radio frequency unit 102 is different from the prior art, using only a radio frequency unit; the antenna 101 can be one antenna, but is not limited to this case, the antenna 101 may also be used corresponding to the WLAN and "Bluetooth "the two antennas. In this embodiment, using one antenna. Embodiment, the baseband processing unit 105 uses a baseband processing unit, which is identical hardware, the firmware / software is different, according to the present embodiment as shown in FIG. But not limited to, the baseband processing unit 105 may be different for different wireless networks, for example, it will be described in the following examples.

Second Embodiment

2, a schematic structural diagram of another single transceiver invention. Wherein the single transceiver device 200, comprising: analog to digital converter (ADC) 203 and digital to analog converter (DAC) 204, further comprising at least: an antenna 201, a radio frequency unit 202, a baseband processing unit 205;

Wherein the baseband processing unit 205 at least comprises: scheduling and time slots coordinator function 205a, the baseband signal processor 205b.

Wherein time slot scheduling and coordinator function 205a, according to a default setting or manual setting of the host, and perform WLAN "Bluetooth" two kinds of wireless networks and switching functions slot allocation; baseband signal processor 205b, and when the scheduling function under the control of the gap 2 05a coordinator, receiving a radio frequency signal transmitting unit 202 of the wireless network, the wireless network signal time slots corresponding to the baseband signal and outputs the wireless network to the host; wireless network data sent by the receiving host, the voice , audio, etc., wireless network data to the wireless network corresponding to the wireless network signal time slot, speech, audio corresponding to the radio frequency and outputs the baseband processing unit 202.

Further, in this embodiment, the single-transceiver apparatus 200 further comprises a data memory 205c, for storing the data baseband signal processor 205b receives and processes.

Other functional components of the embodiment of the present embodiment consistent with embodiments of the embodiment a, not further described herein. In this embodiment, the radio frequency unit 202 unlike the prior art, using only a radio frequency unit; antenna 201 may employ an antenna, but is not limited to this case, the antenna 201 may also be used corresponding to the WLAN and "Bluetooth, , the two antennas, the present embodiment uses one antenna; baseband processing unit 205 in the baseband signal processor using a baseband processing unit 205b, which are identical hardware, the firmware / software is different, as shown in FIG 2 shown. but not limited to, the baseband processing unit 205 baseband signal processor 205b may also be different for different wireless networks, as shown in FIG.

3, the baseband signal processor 305 in the baseband processing unit used for different wireless networks of different, respectively baseband signal processor 305c WLAN and Bluetooth baseband signal processor 305b.

In this embodiment, the baseband signal processor 205 or baseband signal processor 305c WLAN and Bluetooth baseband signal processor 305b may employ a digital signal processor (DSP: Digi tal Signal Proces sor) or other programmable processor; also achieved: (Appl icat ion Specif ic Integra ted Ci rcui t ASIC) and other methods can be used ASIC.

The above-described embodiments, scheduling and time slots coordinator function 205a, 305a may be employed the logic circuit, firmware, or software, in the present embodiment using firmware.

In this embodiment, a filter 205d may further include, for WLAN or "Bluetooth" signal processing, and is connected to ADC203 baseband signal processor 205b, a received wireless network signal filtering.

When the function of the communication apparatus is set to WLAN or "Bluetooth" radio network, shown in Figure 4, the above-mentioned filter is used for a Bluetooth signal processing structure 205d of FIG. In this embodiment, the filter 205d for receiving a WLAN signal processing and "Bluetooth" wireless protocols, the input sampling rate 40Msps.

Said filter comprising: a frequency converter, intermediate frequency digital finite impulse response (FIR) low-pass filter and a thereto connected second order low pass infinite impulse response (I IR) filter. After the frequency converter of a digital signal conversion of analog to digital conversion process from the intermediate frequency to baseband, the baseband signal pre-filtering process by a low-pass finite impulse response filter again, and then, by a set of second order low pass infinite impulse Digital IF more accurate response filter further filtering. among them,

Finite impulse response (FIR) filter, digital signals from 40 Msps to 2 0Msps downsampling. A set of "second order" <pass infinite impulse response (I IR) filter. By selecting the order of the two parts of the filter, to implement a different sideband suppression. Thus, the system can select a different RF front-end, or a different subsequent processing in the baseband design. For ease of illustration, the figures and described only the WLAN baseband processing unit using the same "Bluetooth" filter structure. FIG, f k is the digital intermediate frequency, fixed z is an integer of 6 or less bandit, §ι (ί = 1, 2 , .... Μ) is a programmable 8-bit integer.

^ 3 = 1, 2, ...) is a constant scaling factor, it may be implemented by a shift operation, where Μ is a positive integer. Su in the filter vessel, the order of the FIR filter Ν = 3 or 4, I IR filter order Μ-2,

4 or 8. The digital and RF front-end processing of different filter output signal of the signal processing design, the output sample rate may be 20, 10, 5, 4 or 2Msps. Since we use a low IF signal may be replaced by the baseband signal before analog / digital conversion, f k for digital IF downconversion.

Working process of the single-transceiver apparatus 200 will be described.

Step 2, the RF unit 202 amplifies the received signals, downconvert, and filter processing; receiving process, comprising the step, step 1, the antenna 201 receives a WLAN or "Bluetooth" signal and transmits the signal to the radio frequency unit 202 , analog to digital converter 203 after analog to digital conversion, and then filtered in the filter 205d, and transmitted to the baseband signal processor 205 in the baseband processing unit 205b; step 3, baseband signal processor receiving the wireless network 205b signal, the wireless network signal time slots corresponding to a respective baseband signal and outputs the wireless network to the host.

Transmission process, comprising the steps of:

Baseband signal processor 205b receives host data to be transmitted wireless networks, voice or audio, the wireless network signal time slots corresponding to a respective baseband signal to the radio network, after analog conversion by the DAC 204, output to the RF unit 202; radio frequency unit 202 to filter the received signal, after conversion and amplification processing, sent to the antenna 201 and radiated by antenna 201 to the air.

The single-transceiver apparatus, all hardware includes an antenna 201, radio unit 205 and the baseband signal processor 205b are time-sharing scheduling and control functions under the slot 205a of the coordinator.

In the above embodiment, a single transceiver 100, 200 may be disposed on the external host (such as a desktop or laptop computer) through a host interface control unit, such as a central processing unit (CPU) or microcontroller (MCU) or other programmable processor is connected; or the single transceiver 100, 200, 300 disposed inside the host (such as mobile phones, PDAs and other handheld terminals), as part of the host, and the host control unit such as a central a processor (CPU), a microprocessor (MCU) or other programmable processor is connected.

Third Embodiment

The present invention further provides a wireless communication device. 5, the wireless communication device comprises at least a single transceiver 505 and a host, which comprises a control unit, such as a central processing unit (CPU) / a microprocessor (MCU) / other programmable processor 503, a single transceiver device 505, a memory 504, a man-machine interface 501; wherein,

Single transceiver 505 via a wireless communication device user in advance is provided, one or more receive and transmit wireless network signal;

Memory 504, connected to the central processor 503, a wireless communication device for storing the user to select a menu of at least two wireless networks, and further stores a program required for the wireless communications device, wherein the upper layer primarily stores wireless network protocol drivers , human-machine interface software.

Man-machine interface 501, a wireless communication device for a single user transceiver function 505 is provided, i.e., the preset signal is a transceiver in a wireless network, or a plurality of transceiving wireless network signal. In this embodiment of the man-machine interface 501 and a display using the key input means; wherein, a display for displaying the selection menu; a key input unit for allowing a wireless communication device user according to the selection menu displayed on the display of the single transceiver 505 receives and transmits the wireless network settings;

A control unit such as a central processing unit (CPU) processor (MCU) / other programmable processor 503, for controlling the entire wireless communication device; receiving wireless communication device user is provided, and the setting information is transmitted to the single transceiver means 505; single-transceiver device 505, under control of the control unit 503, for at least two wireless networks for inter-network switching and signal slot allocation; reception and transmission with the user setting the appropriate wireless network signal, and the wireless network signal time slot corresponding to the wireless network and outputs the processed signal.

Wherein any of said single transceiver 505 may employ a single embodiment of the above-described embodiment transceiver. The configuration and action of a single transceiver as defined above, is not repeated here.

The wireless communication device user via the man-machine interface (hardware devices / graphics software, such as graphical windows, touch rhinoceros) is set to the radio network used by the wireless communication device, and the setting information is transmitted to the single transceiver 505 . Wherein, when the wireless network is provided only a single wireless network, or when A WLAN "Bluetooth" wireless network, and a time slot scheduling function coordinator 51 Oa all time slots are assigned to the radio set in advance network, inter-network switching and need not, at this time, the single transceiver 505 receives and transmits radio signals with the prior art similar processes not described here.

When a wireless network is provided for a variety of wireless networks, such as WLAN and "Bluetooth" and other network exist, the function of the baseband processing unit 510 and the time slot scheduling coordinator 51 Oa time multiplex manner wireless network signal network and switching between the dispensing slot; and in order to share the hardware, i.e. at least an antenna, a radio frequency unit, the band part / all overlapping WLAN and "Bluetooth" interference between the two wireless network is minimized or such that WLAN and "Bluetooth" strand maximize the performance of the road, can be a corresponding increase performance mode.

The following methods preclude the wireless communication device by a wireless communication apparatus according to the present invention, a single transceiver is illustrated in Examples.

Fourth Embodiment

The present invention also provides a wireless communication method, which is based on a single transceiver device and a host comprising a wireless communication device, the single transceiver device comprises at least an antenna, a radio frequency unit and a baseband processing unit, the method comprising:

Set the wireless communication device via the HMI host, wherein the device is provided means, wireless communication device to simultaneously or more wireless networks arranged to only one wireless network operating a wireless communication device;

Depending on the setting, the wireless communication device to receive and transmit signals through a single wireless network transceiver.

In this embodiment, the single-transceiver configuration and functions of the above-described embodiment, and is not repeated here. Wherein the single transceiver device share the same hardware, i.e. the radio unit or an antenna, a radio frequency unit and a baseband processing unit, in order to achieve a variety of wireless networking. When the wireless communication device is arranged to function with a variety of wireless networks, the baseband processing unit further comprises a time slot scheduling and coordination functions, a variety of wireless networks control the shared hardware running concurrently and time division multiplexing time slot allocated by function switch.

The following is a WLAN and "Bluetooth" network as an example of the method of the present invention will be described. 7, the single-transceiver apparatus according to the present invention provides, supports WLAN and "Bluetooth" two wireless networks coexist by time division multiplexing method. Comprising the single-transceiver wireless communication device may be controlled so that each communication link of a wireless network time slot sufficient to complete its desired data / voice transmission by the methods provided herein. Among them, "Bluetooth" link either

SCO / eSCO links may also be ACL link; the WLAN link may be IEEE802 lib, IEEE802 l lg or protocol IEEE802 11a... That is, as shown in FIG. 7, a single transceiving apparatus according to the present invention may be connected at one end to establish a WLAN access point WLAN link, and the other end connected to the "Bluetooth devices to establish ,," ,, a Bluetooth link, and, two links may operate simultaneously, data / voice can be transmitted in real time via the transceiver means between said single "Bluetooth" devices and WLAN access point.

The WLAN and "Bluetooth" two kinds of wireless network hardware module common wireless communication device, shown in FIG. 6, including, but not limited to, an antenna, a radio frequency unit, analog to digital / digital to analog converter, a baseband processing unit, a baseband processing unit and the radio frequency unit, an interface between the host and the driver, high-level protocol stored in the memory of the host; man-machine interface and the like. WLAN and "Bluetooth" two kinds of wireless networks can share some or all of the above-described hardware modules, but at least the same share the same antenna and a radio frequency unit may be shared only with a baseband processing unit. The specific configuration and the role of each configuration of the above-described embodiment, and is not repeated here.

Using the wireless communication device operated by a user on a single host machine interface, the device may be configured such that only the only WLAN or via the HMI "operation ,, where Bluetooth, WLAN, and may be configured to" Bluetooth "the situation while working.

'When the user configuring the device such that only the WLAN or only "Bluetooth ,, single-function device, the multifunction host driver (Dr iver) means for identifying said wireless device is a single function, such as a WLAN or only only "Bluetooth" feature;

When the user configuring the device to have both WLAN and "Bluetooth" function, the host drives the multi-function device identified by the multi-function wireless devices. Commands and data between the radio network and a multi-functional high-level protocol with the device driver interface exchange between the host and by the baseband processor.

When transmitting data, WLAN or "Bluetooth" needs to send data / voice information is transmitted according to a certain format of the interface to the same baseband processing unit between the host and from the host through the baseband processing unit, the baseband processing unit via different wireless networks digital signal processing is sent to the protocol specification the same number of D / a converter, the D / a converter converts a digital signal into an analog signal to the same radio unit. In the radio frequency unit, the analog signal is low pass filtered, up-conversion and amplification to the same antenna system, and finally through the same antenna radiation into the air.

When receiving, WLAN or ",, Bluetooth signals received via the same RF antenna (including the selected frequency / band-pass filters) and the same RF processing unit, radio unit after amplification, downconversion and filtering processes the baseband / with the same signal is supplied to an analog / digital converter, a digital signal through analog / digital conversion and is supplied to a baseband unit for processing the same to recover data / voice information transmission side, the last received data / voice according to a certain format information is sent to the host.

WLAN and "Bluetooth" shared baseband processing unit may use a digital signal processor, other processors may be compiled so that the difference WLAN and "Bluetooth" radio networks only reflected in the firmware / software, all sharing a hardware module , i.e. share at least a radio unit.

When the wireless communication device to the wireless communication device of multiple wireless networks simultaneously, the baseband processing unit of the plurality of network switching and signal function by slot allocation and time slot scheduling coordinator function.

The above-described embodiment, the time division multiplexing comprising: a fixed-length slot assignment embodiment, the variable-length slot allocation, based on the needs of the time slot allocation, based on the priority of the time slot allocation of one or more. However, the present invention is not limited to the above embodiment, it may also be used in other ways to switch between the network and slot allocation.

Shown, to WLAN and "Bluetooth" network of networks coexist Example switching and time slot allocation will be described in FIG. 6A 6C. 6A, the transceiver is a schematic view of working time, as shown in FIG. 6B, a schematic diagram of fixed-length slot allocation, shown in Figure 6C, a schematic embodiment of slot allocation of variable length. among them,

Fixed length slot allocation: The running time is divided into a single transceiver device fixed length slots, slot length depending on the application. Each time, WLAN and "Bluetooth" may occupy one or more consecutive time slots for transmitting or receiving. Switching between WLAN and "Bluetooth" always occurs at the edge of the slot, e.g., if the single transceiver device for voice communications, the working time may be divided into a minimum of 1.25 milliseconds (ms) time slots, FIG. 6A. A number of time slots allocated to the WLAN and "Bluetooth" may be determined by a fixed time slot allocation methods, e.g., as shown in each of the three slots, two WLAN occupied, "Bluetooth" using a 6B; also enables flexible timeslot assignment method, e.g., total number of slots occupied by WLAN twice the "Bluetooth" is.

Variable-length slot allocation: the transceiver means operation time is divided into time slots of variable length. Each time, WLAN and "Bluetooth" may occupy one or more time slots for transmitting or receiving. However, time to switch between the WLAN and the point "Bluetooth" is not always fixed in the edge of the slot, shown in Figure 6C, the length of the slots may be adjusted in real time by the communication performance requirements. For example, when the WLAN is more important than performance requirements "Bluetooth", can be adaptively extended time occupied by WLAN. On the other hand, if the WLAN transmitting or receiving a particular task completion time is not fully occupy a slot, you can also switch from WLAN to advance "Bluetooth", and there is no need to wait until the end of the time slot. In addition, it can also be used on a time slot allocation requirements: obtaining time WLAN and "Bluetooth" by competitive manner. WLAN and "Bluetooth" can be expected to work within the time window to obtain competitive tasks to complete before exit. Switching function depends on the guidelines for practical application. For example, if the working time for switching between WLAN and guidelines "Bluetooth", then, when the time WLAN job exceeds a certain threshold, inch device to switch to the "Bluetooth ,,.

WLAN and "Bluetooth ,, obtained by competitive manner and a WLAN use time." Bluetooth "each one or a combination of different operations are given priority as long as there is no more priority: Priority-based time slot allocation. high "Bluetooth" operation request, the device will always perform WLAN operation function switching will preempt the current operating apparatus, and to perform the next higher priority operation occurs. For example, if the user is using WLAN link asynchronous when to start using "real-time applications ,, Bluetooth, WLAN devices can interrupt transmission being performed and switch to the" Bluetooth. "

Another Bu Xi, the time division multiplexing time slot allocation may also employ fixed length, variable length time slot allocation, based on the needs of the time slot allocation, based on any one time slot allocation priority of combinations, e.g., when the "Bluetooth" is switched to the voice SCO link, and WLAN coexistence using fixed-length slot assignment embodiment, when the "Bluetooth" is switched to the ACL link, and the variable length WLAN coexistence or based on the time slot allocation requirements.

In the above embodiment, handover between networks is by way of time division multiplex switching. Which switching mechanism comprising: a seamless switch to ensure that data packets in the transmit slot allocation is completed, to ensure that the received packet is completed within the allocated time slot and time slot alignment. The calibration slot comprises time slot synchronization and alignment calibration rim.

Or below and to WLAN "Bluetooth" Coexistence example to handover between networks will be described.

1. WLAN seamlessly switch between and "Bluetooth"

1) When switching from the WLAN to the "Bluetooth", the single-transceiver wireless communication device 100, 200 or 300 will send a signal to suspend operation of the upper layer associated with the WLAN, and stores information related to the switching function in Replace the WLAN recovery operations relating to WLAN when.

2) when switching from the WLAN to the "Bluetooth", the wireless communication device will be a WLAN access point AP transmits data packets, to prevent data to the AP sends a WLAN wireless communication device during the "Bluetooth" operation.

3) when switching from the "Bluetooth" to a WLAN, the single transceiver will send a signal to halt and an upper layer "Bluetooth ,, related operations, and store information related to a function of switching back to" restore Bluetooth " BT associated with the operation.

Other "Bluetooth" device 4) when switching from the "Bluetooth" to a WLAN, the wireless communication device will send its data link packets to prevent transmission of the "Bluetooth" data to the WLAN device during operation.

2. Ensure that the packet transmission is completed within the allocated time slot

When the total length of the transmit data packet and associated processing time exceeds a preassigned time slots, any one or more of the following methods, but not limited, to ensure that the task is completed within a transmit time slot reserved: 1) discard the data packet; under 2) like a slot, transmit the packet from the start end of the slot; 3) increase the transmission rate of data packets, thereby reducing the length of time required for this transfer; 4) present re-launches allocating more time slots; 5) of the elongated slot to accommodate the current length of the packet.

3. Ensure that the received data packet is completed within the allocated time slot

When a packet is being received, its length may be previously known before the entire packet reception completed. When the time of the operation time and the related received data packets exceeds a preassigned time slots, any one or more of the following methods, but not limited, to ensure that the task is completed within a reception time slot reserved: 1) discard the data packet; 2) more time slots allocated to the currently received; 3) extension of the current slot to accommodate the length of the packet.

4. Calibration slot

The calibration apparatus requires at least two time slots: 1) calibration slot boundary; 2) simultaneously align. Calibration slot edge to ensure that the slot length assigned to the WLAN and "Bluetooth"; and for calibrating sync "Bluetooth" and transceiver synchronization of frequency hopping synchronization. Accordingly, a plurality of time slots for clock calibration. For example, in a global clock for calibration while any possible drift slot boundary, with a local clock to the time were recorded and WLAN "Bluetooth" slots consumption. On the other hand, global clock synchronization can also be used to calibrate track "Bluetooth" hopping pace.

When the multifunctional apparatus according to the present embodiment, when the user places the wireless communication device configured to simultaneously with WLAN and "Bluetooth", in order for the band part and between the shared hardware / WLAN and all overlapping "Bluetooth" two wireless network minimize interference, or to WLAN and "Bluetooth" link performance maximization, the following manner may be employed, but not limited to the following embodiment, may be employed in any other manner.

1. trick from WLAN to avoid degrading "access point" to the single transceiver device between the lower transmission rate is assigned to a "Bluetooth" slots, the wireless communication device may transmit a short packet to "Access point "so that WLAN think the channel is busy. Thus, to avoid unnecessary between the WLAN device and the other wireless communication apparatus interference, but also allows the wireless communication device to avoid loss of data packets from WLAN "access point", otherwise, the data loss rate decrease start program and cause undesired functions while switching to a low-rate transmission time slots WLAN.

2. In the "Bluetooth ,, slots allow WLAN in WN basic service set (BSS: Bas ic Servi ce Set) sleep mode

When the "Bluetooth link is asynchronous ,, non-connected: when (ACL Asynchronous Connect i on-Les s) mode, the switching mechanism can be designed to function: during the" Bluetooth "slot, let WLAN in WLAN BSS sleep mode, thus preventing WLAN "access point" contract to the wireless communication device. WLAN when awake, the single-transceiver wireless communication device is switched to the WLAN slot.

3. Dynamic Control "Bluetooth" transmit power to avoid interference

The wireless communication device may be adaptively controlled "Bluetooth ,, and transmit power to reduce the" interference between Bluetooth "and the WLAN. After each road link is established, the wireless communication apparatus first estimates the necessary transmit power of each channel link and then controls the transmission power just to meet needed for proper reception. a method of estimating the required transmission power detecting received signal strength. Since the interfering transmitter and the receiver are not necessarily to. the same, there is no need to transmit power only by the received signal strength determined. For example, the embodiment may be employed to try to find a suitable transmission power.

4. Dynamic control of receiver sensitivity in order to avoid receiving unwanted WLAN thus left to the "Bluetooth ,, more jobs

The wireless communication device may control the "Bluetooth" or the WLAN reception sensitivity simultaneously two kinds of links, so, allow the wireless communication device receives a desired signal to avoid the low power signal. By masking unwanted signals, function switching mechanism can be better used under appropriate conditions spectrum or the wireless communication device operating time, thus improving performance.

The filtering portion and the ID number received by the packet checking

The wireless communication device may detect WLAN and / or "Bluetooth ,, ID in the link packet so that packets can be sent to discard the other wireless communication device before the transfer, so that the function of the switching mechanism for more freedom allocation of time.

6. Extract "Bluetooth" signal from the interference of the WLAN

The wireless communications device may separate the "Bluetooth" WLAN signals at the same time and the same frequency band transmitted. Signals of different degrees of mixing may be employed in different ways. When the WLAN signal strength with respect to the "Bluetooth" signal is sufficiently weak, the filter can be extracted simply "Bluetooth" signal. When WLAN signals high enough to demodulate WLAN signal and subtracted from the received signal and then estimates "Bluetooth" signal. The control packet transmission rate and slot length to accommodate the length of a better distribution of the wireless communication device can control the transmission rate and the length of the WLAN packet so the best way to adapt to the allocated time slot length. This protocol may be implemented in a WLAN medium access control (MAC) layer. When the WLAN small emission amount, the transmission rate and the packet length can be adjusted so that the transmission time is short enough so that "Bluetooth ,, more slots. When the WLAN when a large emission amount, the data packet length and transmission rate can be adjusted to be more reliable signal transmission, but take up a plurality of WLAN and "Bluetooth" slots. by adjusting the performance of the "Bluetooth" and WLAN links are in a relatively satisfactory level.

8. The wireless communication device to select the better performance of the WLAN "access point"

The wireless communication device to select an appropriate WLAN "access point" so that it suffers the least possible disturbance. These methods include, but are not limited to, the following categories:

1) as much as possible the wireless communication device to establish a link with the presence of 5GHz WLAN channel "access point."

2) selecting the most suitable wireless communication device from the "access point." When the "access point" is too far away from the wireless communication device, a signal may be very weak, the transmission rate becomes lower, the packets will become longer; when the "access point" too close to the "Bluetooth" interference in turn greater.

3) Select a small amount of transmission "access point." The main benefit of this approach is that, when the wireless communication device is switched to "Bluetooth" slots, the probability of data packets from the "access point" relatively low loss rate is correspondingly low, and therefore from the "access point." to the possibility of transmission rate between the wireless communication device is reduced lower. Maintain an appropriate transfer rate of the reception high easier to adapt the assigned time slot.

4) to detect the "access point" P i usage frequency, pick one or more links with the wireless communication device, and a function of a WLAN handover, "Bluetooth", so that "Bluetooth" Adaptive Frequency Hopping (AFH) for better performance.

5) Select "access point" is not connected with the WLAN wireless communication device that supports IEEE802. Lib protocol only in the BSS. This means that "access point" run only IEEE802 llg enhancement rate capable physical layer. (ERP: Extended- Rate PHY) protocol. Thus, the minimum transmission rate is 6Mbps, much higher than the IEEE802. Lib agreement rate of 1Mbps, thereby causing the wireless communication device can obtain better performance.

6) If the present point in a synergistic manner (PCF: Point Coordinat ion Funct ion) "Access Point", then to avoid the distribution in a synergistic manner (DCF: Distributed Coordinat ion Funct ion) of "access point" and the PCF and an "access point "to establish a link. In this manner, when the WLAN and "Bluetooth" switching function, the wireless communication device can be more accurately and predictably with the sleep mode of operation timing.

8 and 9, the wireless communication device application scenario of the present invention. FIG.

As shown, established between a 8 "Bluetooth" audio / voice device with a non "Bluetooth" audio / voice device through a wireless communication device and the communication network audio / voice link, i.e., the communication end of the network, established through the wireless communication device and the WLAN access point "between Bluetooth ,, audio / voice devices via a WLAN link and" Bluetooth "link is a communication link; the other end of the communication network, a "establish the separate audio / voice communication link between a Bluetooth ,, audio / voice terminal equipment and the network, in order to achieve a" non-audio established between a Bluetooth "speech / audio device and a non" Bluetooth "audio / voice device / voice communication link. "Bluetooth" audio / voice device may be head-mounted or portable, WLAN "Access Point" run IEEE 802. lla / b / g standards. Using voice / audio call by the end user to the speech / audio channels. 9 may be established by the above method analogous audio between a "Bluetooth" network device and a terminal between the two "Bluetooth" audio / voice devices via the two wireless communication device and the communication network / voice link, i.e., at an end of the communication network, to establish a communication link and the WLAN link "Bluetooth" link between WLAN access point and the "Bluetooth" audio / voice device through the device, the the other end of the communication network, establishing another communications link the same in order to achieve the establishment of an audio / voice communication link between two "Bluetooth" audio / voice device. "Bluetooth" audio / voice device may be head-mounted or portable, WLAN access point may run the IEEE 802. lla / b / g standards. Using audio / voice calls via the end user to the audio / voice channels. Performance of the wireless communication device enables the link is maintained at a satisfactory level. You can also establish a data link between the two ends of the communication network in the "Bluetooth" devices similar to the above method.

It understood the above embodiment, a single transceiver of the present invention, a wireless communication device and wireless communication method, save hardware resources, to simplify the hardware structure, hardware commissioning times; simplify the interface when multiple wireless networks coexist; firmware may be employed / time resource scheduling software, greater flexibility in the control slot allocation, time slots, and calibration function switch; may employ firmware / software baseband link control and easier to debug and system upgrade.

The above-described embodiments of the present invention is illustrative only, not intended to limit the present invention.

Claims

Claims
1. A radio communication method, wherein, based on a single transceiver device and a host comprising a wireless communication device, the single transceiver device comprises at least an antenna, a radio frequency unit and a baseband processing unit, the method comprising:
Set the wireless communication device via the HMI host, wherein the device is provided means, wireless communication device to simultaneously or more wireless networks arranged to only one wireless network operating a wireless communication device;
Depending on the setting, the wireless communication device to receive and transmit signals through a single wireless network transceiver.
The wireless communication method according to claim 1, wherein, when the wireless communication device to the wireless communication device of multiple wireless networks simultaneously, the function of the baseband processing unit via scheduling and slots coordinated ii implemented a variety of network switching and time slot assignment function.
The wireless communication method according to claim 2, wherein said wireless communication device receiving signals through a single wireless network transceiving means, comprising the steps of:
Step 1, the respective slot antenna receiving signals and wireless network signal to the radio frequency unit;
Step 2, the radio frequency unit of the received signal is processed by analog to digital conversion is transmitted to the baseband processing unit;
Step 3, the baseband processing unit receives the signal analog to digital conversion, the baseband processing in the corresponding time slot corresponding to the signal and outputs to the host.
The wireless communication method according to claim 2, wherein the wireless communication device transmits signals to the network through a single radio transceiver, comprising the steps of:
The host unit receives a baseband wireless network data, corresponding to the wireless network baseband processing in a time slot corresponding to the radio frequency and outputs the digital-analog conversion unit;
After the radio frequency unit of the digital to analog signal conversion processing, transmission to the antenna, the radiation from the antenna to the air.
The wireless communication method according to claim 2, wherein the plurality of time division multiplexing mode of wireless network signal switching function and slot allocation; is the time division multiplexing: a fixed-length slot allocation embodiment, the variable-length slot allocation, based on the needs of the time slot allocation, based on one or more priority slot assignment manners.
The wireless communication method according to claim 5, characterized in that the fixed-length slot allocation means: operating the wireless communication device is divided into fixed-length time slots, slot length depends practical application; each, each wireless network may occupy one or more consecutive time slots for transmitting or receiving, and switching between the wireless network occurs on the edges of the slot.
The radio communication method as claimed in claim 5, wherein said time slot allocation is variable length means: the runtime wireless communication device is divided into time slots of variable length; each, each wireless network may occupy one or more time slots for transmitting or receiving, and switching between a time point of a wireless network is not always fixed in the edge of the slot, and the slot length is adjusted by the real-time requirements.
The wireless communication method according to claim 5, wherein said time slot allocation based on the needs means: Each wireless network is obtained by using a competitive manner 'between.
9. The wireless communication method according to claim 5, characterized in that, based on the priority time slot allocation means: Each time a wireless network obtained by competitive manner, wherein each of the wireless network one or a set of operations are given different priorities.
1 G. The wireless communication method according to claim 5, wherein said function switching mechanism comprising at least: a seamless switch to ensure complete packet is transmitted in allocated time slot, to ensure that the received packet in the dispensing completed within a slot and slot alignment.
11. The wireless communication method according to claim 10, wherein, when the wireless communication device to switch from the current wireless network to another wireless network, the seamless handover means that: a single transceiver device upwardly layer transmission signal to suspend the operation of the current wireless network and to save the information;
The wireless communication device to switch from the current wireless network to another wireless network;
The wireless communication device transmits a data packet to the current wireless network, other wireless communication device to block the current wireless network transmitting the current data to the wireless network during a single transceiver means another wireless network operation.
12. The wireless communication method according to claim 10, wherein, when the total length of the transmit data packet and associated processing time exceeds a pre-assigned time slot, to ensure the complete packet is transmitted in allocated time slot methods used to: discard the data packet, so the next time slot, the packet transmit time slot from the starting end, increase the transmission rate of the data packet, re-allocate more time slots for transmitting the current, the current extended one or more slots to accommodate the length of the packet mode of.
13. The wireless communication method according to claim 10, wherein, when the time of receiving data packets and a time related operations exceeds a pre-assigned time slot, to ensure the completion of the reception of the time slot reserved task using the way: discard the data packet, to allocate more time slots for receiving the current, the current extension slot length to accommodate one or more ways of the data packet.
14. The wireless communication method according to claim 10, wherein said slot comprises a calibration calibration and synchronization slot boundary alignment.
The wireless communication method according to claim 1, wherein, when the wireless communication device is provided simultaneously as a wireless LAN and a Bluetooth network, using any one of the following ways:
WLAN to avoid spoofing reduce the transmission rate between the "access point" to the mobile terminal; in a Bluetooth network in the slot so that the wireless LAN WLAN Basic Service Set
Sleep patterns;
Bluetooth network dynamically controlling transmission power to avoid interference;
Dynamic control of receiver sensitivity in order to avoid receiving unwanted wireless LAN Bluetooth network in order to leave more job opportunities;
And filtered through a part of the ID number received packet inspection;
Extracting a signal from the Bluetooth network, wireless local area network of the interference; wireless communication device to select the better performance of wireless LAN access points.
16.- kinds of wireless communication device, characterized in that, at least comprising a single-host and transceiver, which includes a main control unit, a memory, man-machine interface; wherein,
Single transceiver, the wireless communication device is provided according to a user setting or default, receive and transmit at least two wireless network signal;
A memory, connected with the control unit, for a wireless communication device for storing a user selection menu to select at least two wireless networks, wireless networks and the upper layer protocols, software drivers and HMI; man-machine interface for the wireless communication device user through the memory selecting stored dogwood-on-one transceiver function is provided;
A control unit for controlling, receiving wireless communication device user is provided, and transmits the setting information to the single transceiver; single transceiver under the control of the control unit, for at least two wireless network signal switch function and a slot allocation; arranged to receive and transmit the user signal corresponding to a wireless network, wireless network and process the signals in the wireless network and outputs a signal corresponding to the time slot.
17. The wireless communication apparatus according to claim 16, wherein said transceiver means comprises a single analog to digital and digital to analog converter, an antenna, a radio frequency unit, a baseband processing unit; wherein an antenna for receiving at least two wireless network signal types transmitted and transferred to the radio frequency unit; radio frequency signal receiving unit transmits to air and radiation;
A radio frequency unit, the signal transmitted by the wireless network at least two receiving antennas and transmission processing and send it to the baseband processing unit via the analog to digital converter; baseband processing unit after receiving the signal transmitted by the digital-analog converter, the processing to transfer antenna;
The baseband processing unit through an interface with the radio frequency unit and a host, according to manually set the default settings or host, for at least two wireless networks and the time slot allocation function switch, RF wireless network signal receiving unit is transmitted, the wireless network signal time slot corresponding to the wireless network signal, and outputs the baseband processing corresponding to the host; receiving a command sent by the host or a wireless data network, corresponding to the wireless network baseband processing data in the corresponding slot and outputs it to the said radio frequency unit; or for any signal processing in a wireless network.
18. The wireless communication device as claimed in claim 17, wherein said baseband processing unit comprises at least: a coordinator function scheduling and time slots, the baseband signal processor; wherein,
Scheduling and time slots coordinator function, in accordance with the default settings manually set or host, wireless network signal switching function and slot allocation;
The baseband signal processor, under control of scheduling and time slots coordinator, receiving a radio frequency signal units transmitted over the wireless network, the corresponding baseband signal to the radio network in the radio network, and outputs a signal corresponding to a time slot to the host; receiving instructions or wireless network data sent by the host, in the corresponding slot of the wireless network baseband processing and outputs the data corresponding to the radio frequency unit; or for any signal processing in a wireless network.
19. The wireless communication apparatus according to claim 18, characterized in that, further comprising a digital memory, and the baseband signal processor is connected, for storing data of the baseband signal processor received and processed.
20. The wireless communication apparatus according to claim 18, wherein the baseband processing unit further includes a digital filter connected to the analog to digital converter and a baseband signal processor for the radio frequency by an analog unit received wireless network signal is filtered and transmitted to the baseband signal processor.
21. The wireless communication apparatus according to claim 20, wherein, in the case of a wireless LAN and Bluetooth networks coexist, the filter comprising: a digital intermediate frequency downconverter, a finite impulse digital converter connected to the intermediate frequency in response to the low pass filter and second order low pass infinite impulse response filter connected thereto; wherein,
Digital IF downconverter, the signal after conversion from analog to digital conversion at intermediate frequency to baseband, low pass filter process continues prefiltered signal from the baseband finite impulse response, then the response by the second order low pass filter is an infinite impulse filtered.
22. The wireless communication apparatus according to claim 18, wherein said function and the time slot scheduling coordinator time multiplex manner on the wireless network signal switching function and timeslot allocation.
23. The wireless communication apparatus according to claim 22, wherein said time division multiplexing time slot allocated fixed length, the length of the variable slot allocation, based on the slot allocation requirements, based on one or more slot allocation priority in.
24. The wireless communication apparatus according to claim 22, wherein said function switching mechanism comprising at least: a seamless switch to ensure complete packet is transmitted in allocated time slot, to ensure that the received packet in the assigned completed within a time slot and time slot alignment.
25.- single species transceiver, comprising analog to digital and digital to analog converter, characterized in that at least further comprising: an antenna, an RF unit, a baseband processing unit; wherein,
An antenna for receiving a signal transmitted from the at least two radio network and sent to the radio frequency unit; radio frequency signal receiving unit transmits to air and radiation;
A radio frequency unit, the signal transmitted by the wireless network at least two receiving antennas and transmission processing and send it to the baseband processing unit via the analog to digital converter; baseband processing unit after receiving the signal transmitted by the digital-analog converter, the processing to transfer antenna;
The baseband processing unit through an interface with the radio frequency unit and a host, according to manually set the default settings or host, for at least two wireless networks and the time slot allocation function switch, RF wireless network signal receiving unit is transmitted, the wireless network signal time slot corresponding to the wireless network signal, and outputs the baseband processing corresponding to the host; receiving a command sent by the host or a wireless data network, corresponding to the wireless network baseband processing data in the corresponding slot and outputs it to the said radio frequency unit; or for any signal processing in a wireless network.
26. The single transceiving apparatus according to claim 25, wherein said baseband processing unit comprises at least: a coordinator function scheduling and time slots, the baseband signal processor; wherein,
Scheduling and time slots coordinator function, according to a default setting or manually set the host, wireless network signal switching function and slot allocation; baseband signal processor, under control of scheduling and time slots coordinator, receiving radio-frequency unit wireless network signal is transmitted, the wireless network signal time slots corresponding to the respective wireless network baseband signal and outputs it to the host; receiving a command sent by a host network or wireless data networks for wireless data in the respective slot corresponding to the radio frequency and outputs the baseband processing unit; or for any signal processing in a wireless network.
27. A single-transceiver apparatus according to claim 26, characterized in that, further comprising a digital memory, and the baseband signal processor is connected, for storing data of the baseband signal processor received and processed.
28. The single transceiving apparatus according to claim 26, wherein the baseband processing unit further includes a digital filter connected to the analog to digital converter and a baseband signal processor for the radio frequency by an analog unit received wireless network signal is filtered and transmitted to the baseband signal processor.
29. A single-transceiver apparatus according to claim 28, wherein, in the case of a wireless LAN and Bluetooth networks coexist, the filter comprising: a digital intermediate frequency downconverter, a finite impulse digital converter connected to the intermediate frequency in response to the low pass filter and second order low pass infinite impulse response filter connected thereto; wherein,
Digital IF downconverter, the signal after conversion from analog to digital conversion at intermediate frequency to baseband, low pass filter process continues prefiltered signal from the baseband finite impulse response, then the response of the filter for the second order infinite impulse through filtering.
30. A single-transceiver apparatus according to claim 26, wherein said function and the time slot scheduling coordinator time multiplex manner on the wireless network signal switching function and timeslot allocation.
31. The single transceiving apparatus according to claim 30, wherein said time division multiplexing time slot allocated fixed length, the length of the variable slot allocation, based on the slot allocation requirements, based on one or more slot allocation priority in.
32. A single-transceiver apparatus according to claim 30, wherein said function switching comprising at least: a seamless switch to ensure complete packet is transmitted in the allocated time slot, ensuring that the packet is received in the allocated the gap and complete the calibration slot.
PCT/CN2006/002486 2006-09-22 2006-09-22 A transceiver, wireless communication device and wireless communication method WO2008037109A1 (en)

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