CN105430748A

CN105430748A - Wireless communication device and method for operating wireless communication device

Info

Publication number: CN105430748A
Application number: CN201610034475.1A
Authority: CN
Inventors: J·C·哈特森
Original assignee: Sony Ericsson Mobile Communications AB
Current assignee: Sony Mobile Communications AB
Priority date: 2010-10-19
Filing date: 2010-10-19
Publication date: 2016-03-23
Anticipated expiration: 2030-10-19
Also published as: CN105430748B

Abstract

The invention discloses a wireless communication device and a method for operating the wireless communication device. The wireless communication device comprises a first RF (radio frequency) transceiver, a second RF transceiver and a connection manager, wherein the first RF transceiver is configured to send/receive an RF signal in a first frequency band; the second RF transceiver is configured to send/receive an RF signal in a second frequency band different from the first frequency band; the connection manager is coupled to the first RF transceiver and the second RF transceiver and is used for assisting the channel selection of the first RF transceiver and the second RF transceiver, so as to reduce the mutual interference between the first RF transceiver and the second RF transceiver. The related method is also disclosed.

Description

The method of Wireless Telecom Equipment and operate wireless communication equipment

The divisional application of the application for a patent for invention of " the mobile auxiliary channel in the equipment with multiple radio transceiver is selected " that the application is application number is 201080069537.3, international application no is PCT/IB2010/002678, the applying date, to be October 19, denomination of invention in 2010 be.

Technical field

The mobile auxiliary channel that the present invention relates in the equipment with multiple radio transceiver is selected.

Background technology

Wireless Telecom Equipment, as mobile phone, comprise the ever-increasing different RF transceiver (radio) of quantity to support to access some radio communication service, such as honeycomb access, local access (such as WiFi), ad-hoc connect (such as bluetooth) and such as pass through the location of global positioning system (GPS) and so on.Cellular radio is operated in the licensed band defined by 3GPP.WiFi and bluetooth are all operated in Industrial-Scientific-Medical (ISM) frequency band near 2.4GHz and 5GHz that exempt to permit.Ever-increasing similitude (frequency domain) between the Physical similarity (referred to herein as common location) close in view of the transceiver in these equipment and these transceiver operating frequencies, also becoming alternately between radio is more possible, and these all may cause the performance impact be harmful to.

Along with the lasting success of cellular communication, no matter be to voice or data, frequency planning and Specification entity are all seeking more usable spectrum always.New cellular radio electric frequency band is used as locally-attached frequency band close to existing just unawares.Such as global system for mobile communications UMTS frequency band 40 (2300 ~ 2400MHz) and UMTS frequency band 7 (2500 ~ 2690MHz) are in close proximity to 2.4GHzISM frequency band (2400 ~ 2483.5MHz), and altogether location problem just becomes more possibly, causes potentially being operated in mutual interference between the transceiver of different frequency bands and/or blockage problem.The transmission signal of high power wireless transceiver may affect the sensitivity of the radio receiver of some.Because channel becomes more close in frequency, this requires precipitous filtering (ever-increasing cost, power and size), even now, but when filter does not protect bandwidth for when roll-offing, still may be failed.Such as, between frequency band 40 and 2.4GHZISM frequency band, there is no the protection bandwidth that can provide.

Summary of the invention

A kind of Wireless Telecom Equipment according to some execution modes comprises: be configured to the RF transceiver at the first frequency band sending/receiving radio frequency (RF) signal; Be configured to the 2nd RF transceiver at the second frequency band sending/receiving RF signal being different from described first frequency band, and connection manager, it is couple to a described RF transceiver and the described 2nd RF transceiver Channel assignment for an auxiliary described RF transceiver and described 2nd RF transceiver, to reduce the mutual interference between a described RF transceiver and described 2nd RF transceiver.

A described RF transceiver can be configured to the first channel allocation information to be sent to described connection manager, a described RF transceiver is indicated to send and/or receive the first channel of RF signal of communication, and described 2nd RF transceiver can be configured to second channel assignment information to be sent to described connection manager, described 2nd RF transceiver is indicated to send and/or receive the second channel of RF signal of communication.Described connection manager can be configured to analyze described first channel allocation information and described second channel assignment information to determine whether there is potential interfering with each other between the RF signal of communication that send/receive on described first channel and the RF signal of communication that send/receive on described second channel.

Potential interfering with each other may be there is in response between the RF signal of communication determining to send/receive on described first channel and the RF signal of communication that send/receive on described second channel, described connection manager can be configured to channel to be reselected signal and be sent to a described RF transceiver and/or described 2nd RF transceiver, instruction its select different channels send/receive RF signal of communication.

Reselect signal in response to receiving described channel, a described RF transceiver and/or described 2nd RF transceiver can be configured to channel adjustment request is sent to the new channel of far-end network access point request dispatching send/receive RF signal of communication.

Described channel adjustment request can comprise the bad CQI (CQI) of channel quality that instruction distributes.

A described RF transceiver can be configured to according to the first wireless communication protocol at described first frequency band sending/receiving RF signal, and described 2nd RF transceiver can be configured to according to being different from the second wireless communication protocol of described first wireless communication protocol at described second frequency band sending/receiving RF signal.

A described RF transceiver can comprise bluetooth transceiver, and a described RF transceiver can be configured to the frequency-hopping carrier that selection does not conflict with the frequency that described 2nd RF transceiver uses.

Described connection manager can be configured to: being separated by response to described first channel and described second channel is less than R hertz distance, determine may there is potential mutual interference between described first channel and described second channel, the front end filter characteristic wherein in response to a described RF transceiver and described 2nd RF transceiver determines R.

Described connection manager can be configured to: if the edge of described first channel and described second frequency band can be separated by be less than R hertz distance, then determine may there is potential mutual interference between described first channel and described second channel, the width that the 30dB of belt filter that wherein R equals in a described RF transceiver or described 2nd RF transceiver roll-offs a little.

Described connection manager can be configured to: if the edge of described first channel and described second frequency band is separated by and is less than R2 hertz distance and the edge of described second channel and described first frequency band is separated by and is less than R1 hertz distance, then determine may there is potential mutual interference between described first channel and described second channel, the front end filter characteristic wherein in response to a described RF transceiver and described 2nd RF transceiver determines R1 and R2.

Provide the method for operate wireless communication equipment, described Wireless Telecom Equipment comprise be configured to the first frequency band sending/receiving radio frequency (RF) signal a RF transceiver, be configured to the second frequency band sending/receiving RF signal being different from described first frequency band the 2nd RF transceiver and be coupled to the connection manager of a described RF transceiver and described 2nd RF transceiver.Said method comprising the steps of: analysis of allocated to the RF channel of a described RF transceiver and described 2nd RF transceiver to characterize the degree interfered with each other between a described RF transceiver and described 2nd RF transceiver; And the channel that is assigned with is refused in response to the mutual interference degree between a described RF transceiver and described 2nd RF transceiver.

Described method can be further comprising the steps of: from a described RF transceiver, the first channel allocation information is sent to described connection manager, indicates a described RF transceiver send and/or receive the first channel of RF signal of communication; From a described RF transceiver, second channel assignment information is sent to described connection manager, indicates described 2nd RF transceiver send and/or receive the second channel of RF signal of communication; And analyze described first channel allocation information and described second channel assignment information to determine whether may there is potential mutual interference between the RF signal of communication that send/receive on described first channel and the RF signal of communication that send/receive on described second channel.

Described method can be further comprising the steps of: can there is potential mutual interference in response between the RF signal of communication determining to send/receive on described first channel and the RF signal of communication that send/receive on described second channel, channel is reselected signal and is sent to a described RF transceiver and/or described 2nd RF transceiver, instruction its select different channels send/receive RF signal of communication.

Described method can be further comprising the steps of: reselect signal in response to receiving described channel, channel adjustment request is sent to far-end network access point from a described RF transceiver and/or described 2nd RF transceiver, and the channel that request dispatching is new send/receive RF signal of communication.

Channel adjustment request comprises the bad CQI (CQI) of channel quality that instruction distributes.

A described RF transceiver can send/receive RF signal according to the first wireless communication protocol at described first frequency band, and described 2nd RF transceiver can according to being different from the second wireless communication protocol of described first wireless communication protocol at described second frequency band sending/receiving RF signal.

A described RF transceiver can comprise bluetooth transceiver, and described method is further comprising the steps of: the frequency-hopping carrier selecting the frequency conflicts do not used with described 2nd RF transceiver.

Described method can be further comprising the steps of: the edge in response to described first channel and described second channel is separated by and is less than R hertz distance, determine can there is potential mutual interference between described first channel and described second channel, the width that the 30dB of belt filter that wherein R can equal in a described RF transceiver or described 2nd RF transceiver roll-offs a little.

Described method can be further comprising the steps of: if the edge of described first channel and described second frequency band can be separated by be less than R hertz distance, then described connection manager determines may there is potential mutual interference between described first channel and described second channel, the width that the 30dB of belt filter that wherein R equals in a described RF transceiver or described 2nd RF transceiver roll-offs a little.

Described connection manager can be configured to: the edge in response to described first channel and described second frequency band is separated by and is less than R2 hertz distance and the edge of described second channel and described first frequency band is separated by and is less than R1 hertz distance, determine may there is potential mutual interference between described first channel and described second channel, the width that the 30dB of belt filter that wherein R1 can equal in a described RF transceiver roll-offs a little, and the width that the 30dB of belt filter that wherein R2 equals in described 2nd RF transceiver roll-offs a little.

When having consulted the following drawings and detailed description, to those skilled in the art, other system, method and/or computer program according to the embodiment of the present invention will be or will become apparent.Be intended to all this spare systems, method and/or computer program to comprise in this manual, comprise within the scope of the invention, and protected by claims.

Accompanying drawing explanation

Accompanying drawing is involved to provide a further understanding of the present invention, and is included in this specification the part forming this specification, those figures show some embodiments of the present invention.In the accompanying drawings:

Fig. 1 describes according to the signal of the wireless communication terminal of some execution modes.

Fig. 2 describes the radio communication of wireless communication terminal on multiple wireless communication interface according to some execution modes.

Fig. 3 describes the frequency band arrangement near 2.4GHz.

Fig. 4 describes and redistributes according to the channel in the frequency band of some execution modes near 2.4GHz.

Fig. 5 describes according to the frequency domain dispatching in Long Term Evolution (LTE) system of the employing OFDM of some execution modes.

Fig. 6 describes the Link Management Protocol message sequence arranging AFH of pairing bluetooth equipment.

Fig. 7 depicts the flow chart of the operation of the channel selecting system/method according to some execution modes.

Fig. 8 describes band pass filter and to roll-off feature.

Fig. 9 is the flow chart of the operation of channel selecting system/method according to some execution modes.

Embodiment

More completely embodiments of the present invention are described below with reference to accompanying drawings, shown in the drawings of embodiments of the present invention.But the present invention can realize in many different forms, given execution mode should be construed as limited to here.More properly, providing of these execution modes is to make the disclosure more thoroughly complete, and scope of the present invention is intactly conveyed to those skilled in the art.In the text, the element that similar digitized representation is similar.

Although here use term first, second etc. represent each element, be appreciated that these elements should not limited by these terms.These terms are only for distinguishing an element and another element.Such as, the first element can be named as the second element, and similarly, the second element can be named as the first element, and does not depart from the scope of the present invention.As used herein, term "and/or" comprises one or more any one and all combinations of listing in project of being correlated with.

Term used herein is only not limitation of the present invention for describing specific execution mode.As used herein, singulative " ", " one " and " being somebody's turn to do " also comprise plural form, unless the context requires clearly indicating.Also will recognize, term used herein " comprises ", " comprising " be the existence enumerating described feature, integer, step, operation, element and/or parts, but does not get rid of other features one or more, integer, step, operation, element, the existence of parts and/or its set or interpolation.

Unless explicitly defined otherwise, used here all terms (comprising technology and scientific terminology) have understands identical implication usually with those skilled in the art of the invention.Also will appreciate that, term used here should be interpreted as having the implication consistent in the context and correlative technology field of this explanation with them, should not be construed as Utopian or the implication of too form, unless wherein so limited clearly.

As wherein used, " Wireless Telecom Equipment " includes but not limited to an equipment, and this equipment is configured to the reception/transmission being carried out signal of communication by the digital TV network of wireless communication interface and such as cellular network, WLAN (wireless local area network) (WLAN), such as DVB-H network, satellite network, AM/FM broadcasting transmitter and/or another communication terminal.Wireless Telecom Equipment can be called as " wireless communication terminal ", " wireless terminal " and/or " mobile terminal ".The example of Wireless Telecom Equipment includes but not limited to satellite or cellular radio, PCS Personal Communications System (PCS) terminal that cellular radio and data processing, fax and its communication ability can be combined, comprises the PDA of radio telephone, beep-pager, internet/intranet access, web browser, organizer, calendar and/or global positioning system (GPS) receiver; And the laptop computer of routine and/or palmtop computer or comprise other application of radio transceiver, comprise WLAN router etc.

Radio communication between electronic equipment can utilize a variety of communication media, communication system and communication standard to realize.Such as, the Wireless Telecom Equipment of such as mobile phone is typically set and communicates via simulation and/or digital wireless radio frequency (RF) telephone system.This equipment is also additionally configured to and utilizes wired and/or the short range communication channels of WLAN (wireless local area network) (LANs), such as BluetoothRF communication channel and/or infrared communication channel and/or such as satellite communication system long distance communication system to communicate.

According to some execution modes, Wireless Telecom Equipment comprise with remote terminal (such as, other communicator, base station, access point etc.) carry out communicating multiple RF communication modules, use the RF signal that antenna that is special or that share in a wireless communication device sends and/or receives.Each RF communication module is configured to operate in limited frequency band.Especially, each RF communication module can use the channel in frequency band selected in multiple channel to communicate with remote terminal.

Channel assignment, also referred to as channel allocation or channel assignments, refers to selection and the distribution of the RF channel in wireless communication system.In a typical RF communication system, as in honeycomb or PCS mobile communication system, Channel assignment is performed by the Resource Scheduler in the Radio Access Network of communication system, instead of performed by other Wireless Telecom Equipment in system.Following object can perform Channel assignment: the average power consumption of Wireless Telecom Equipment, the average error bit rate reducing communication and/or other targets in the cochannel interference effectively in configuration RF spectrum thus maximum data bandwidth and/or minimizing system between equipment, reduction system.

Channel assignments/allocative decision can be divided into fixed channel assignment or dynamic channel allocation.In dynamic channel allocation schemes, channel can in response to communication system and/or RF communication environment change and be reallocated.In a cellular communication system, such channel redistribute be Resource Scheduler in the node of Radio Access Network control and perform under instructing, the node of described Radio Access Network can monitor the factors such as such as channel use, channel demands, cochannel and adjacent-channel interference level, and other factor.When scheduler determines that wireless communication terminal in systems in which needs to be switched to new channel for when send/receive, this scheduler can transmit control channel message to wireless communication terminal, with indicate it by its emitter/receiver be tuned to new channel for sending/receiving.

But communication system may not know to be commonly located other the RF communication module in described Wireless Telecom Equipment and the possible operation frequency near the frequency used with RF communication system.The sending/receiving of other RF communication module like this can cause and the cochannel of the RF communication module in Wireless Telecom Equipment and/or adjacent-channel interference, and these interference are likely that communication system does not detect/cannot be detected.

Be present in same equipment to deal with different RF transceivers, many different solutions are considered.Such as, proposed and used different antennas, had the isolation that large between which.In a Wireless Telecom Equipment, provide multiple mutually isolated antenna may cause influencing each other between less antenna, and in less equipment RF transceiver sending/receiving signal between interference.But this needs the spacing between the directivity of enough antennas and/or antenna.Separation between antenna is more and more difficult, because the size of mobile device reduces, and directivity is for some Wireless Telecom Equipments, and such as mobile phone may be unpractical, except non-usage costliness with powerful adaptive beamforming technology.

Also propose in prior art by the various RF transceivers in equipment, time division duplex to be applied in communication, only have a RF transceiver to be activated a moment like this, or RF transceiver all sends at one time or all receives.But such method may be difficult to realize, because they need the coordination between the RF transceiver operated according to various criterion and/or effectively limit wireless throughput.

Frequency spectrum is a kind of scarce resource, and regulator and telecommunications industry seek more usable spectrum to meet the demand increased for capacity always.Due to higher propagation attenuation, very high frequency(VHF) (more than 5GHz) is not suitable for long distance applications, because the efficiency of miniature antenna reduces, very low frequency (lower than 500 megahertzes) is also not suitable for mini-plant, and therefore focus concentrates on the usable spectrum between about 800 megahertzes to 4GHz always.Consequently, the separation between frequency band reduces.The filter with more precipitous roll-off characteristic can help the problem solving interference mutually.But in the filter run at 2GHz, even if the most precipitous filter at least needs the guard band of 1%, this can cause the boundary belt of 15-20 megahertz.Less boundary belt may need steeper filter, and this may increase cost, size, and/or more insertion loss, and this can cause radio receiver sensitivity lower (and therefore reducing scope).But due to the demand for the more growth of multicapacity, the guard band of 20MHz may be worthless.

The solution of an application TDD may need media interviews between different radio to control the close interaction of (MAC) agreement.Different wireless packet scheduling (time domain scheduling) may be needed to avoid such a case, a wireless radio transmission in this situation, and remaining one reception.A rough time scheduling is allowed to combine but significant impact can not be produced to specification based on the radio protocol of packet radio, time division multiple access (TDMA) and/or time division duplex (TDD).Such as, but the radio run continuously, Frequency Division Duplexing (FDD) (FDD) and/or Code Division Multiple Access (CDMA), got rid of by from co-existence schemes, because they are all continuously actives in up link and down link.

The Channel assignment of two or more RF transceivers in some embodiment coordinating radio communication apparatus.Especially, the Channel assignment in the radio band of different RF transceiver use is in the apparatus assisted according to the Wireless Telecom Equipment of some execution modes.If altogether the generation of location problem is because the channel that uses of different RF transceivers is too tight in frequency domain interval, the then described Wireless Telecom Equipment network that can advise one or more available transceiver and/or be associated with them, such as, cellular network, WiFi network and/or reciprocity bluetooth equipment, with assigning channels again, to have more spacing between wireless channel, thus influencing each other between RF transceiver is less.

According to some execution modes, intelligent frequency scheduling performs for the multiple RF transceivers in same Wireless Telecom Equipment.The channel in distributed radio bands that intelligent frequency scheduling may make Wireless Telecom Equipment help system find to be spaced sufficiently far apart.The multiple RF transceivers of the auxiliary possibility of scheduling only in Wireless Telecom Equipment are needs when running simultaneously.

Shown in Figure 1 according to the Wireless Telecom Equipment 100 of some execution modes.

Particularly, Wireless Telecom Equipment 100 is configured to send on the one or more wireless communication interfaces and/or receive wireless signal.Such as, the Wireless Telecom Equipment 100 according to some execution modes can comprise cellular communication transceiver, bluetooth transceiver, infrared communications transceiver, global positioning system (GPS) receiver, WLAN transceiver, and/or the communication module of other types.

Pass through cellular communication transceiver, described Wireless Telecom Equipment 100 can use one or more cellular communication protocol to communicate such as, advanced mobile phone service (AMPS), ANSI-136, global mobile communication standard (GSM), general packet radio service (GPRS), enhanced data rates for gsm evolution (EDGE), code division multiple access (CDMA), wideband CDMA, CDMA2000, universal mobile telecommunications system (UMTS) and Long Term Evolution (LTE).

By bluetooth or infrared transceiver, Wireless Telecom Equipment 100 can communicate by using the ad-hoc network of direct wave point.By WLAN transceiver, Wireless Telecom Equipment 100 can communicate by using the WLAN router including, but are not limited to the communication protocol of 802.11a, 802.11b, 802.11e, 802.11g and/or 802.11i.

Wireless Telecom Equipment 100 can comprise in addition AM/FM radio tuner, UHF/VHF tuner, satellite radio tuner, DVB-H receiver and/or another be configured to receive the receiver of broadcast audio/video signal and/or data-signal.

Wireless Telecom Equipment 100 comprises: display 108, as liquid crystal display (LCD) and/or Organic Light Emitting Diode (OLED) display.Described Wireless Telecom Equipment 100 comprises keypad 102 or other user's input mechanism on described equipment 100 fore shell 110 alternatively.In some embodiments, display 108 can be provided with touch screen function, to replace keypad 102 and/or to supplement.

Wireless Telecom Equipment 100 can comprise microphone 106 and earpiece/speaker 104.The housing of equipment 100 can be designed to the acoustic seal formed when earpiece/speaker 104 is placed on the head of user user's ear.

Keypad 102, display 108, microphone 106, loud speaker 104 and camera 124 can be couple to the processor 127 of the operation being configured to control appliance 100, such as microprocessor or microcontroller.

Equipment 100 may further include multiple transceiver 140A to 140D, comprises, such as, and LTE transceiver 140A, WiFi transceiver 140B, honeycomb/PCS transceiver 140C and/or bluetooth transceiver 140D.As mentioned above, other or less RF transceiver can be included in device 100.

Equipment 100 comprises the connection manager 170 being coupled to RF transceiver 140A to 140D and processor 127 further.Connection manager 170 can use such as general programmable microprocessor and/or nonshared control unit to realize.Although be described to as independent assembly, connection manager 170 can realize as the module in processor 127 in some embodiments.Connection manager communicates with RF transceiver 140A to 140D to control/auxiliary needle to the Channel assignment of the sending/receiving of RF transceiver 140A to 140D, to reduce the mutual interference between them.

Mobile device 100 also comprises the memory 128 being couple to processor 127.Other electronic circuit, such as GPS interface, digital signal processor etc., also can be included in the electronic circuit of equipment 100.

Transceiver 140A to 140D typically comprises radiating circuit, receiving circuit and modulator-demodulator, in order to carry out coordinating by antenna 150 radiofrequency signal being sent to remote transceiver and from remote transceiver received RF signal.RF transceiver 140A to 140D is communicated with antenna 150 by duplexer 160.Antenna 150 can comprise one or more radiated element.The wireless frequency signal transmitted between equipment 100 and remote transceiver can comprise business and control signal (such as, the paging signal/message of incoming call), and this business and control signal are for setting up and keeping and the communicating of the opposing party or another destination.

Memory 128 can be for storing program command for processor 127 and data, as the general-purpose storage of voice data, video data, configuration data and/or other data that may accessed by processor 127 and/or use.Memory 128 can comprise the read/writable memory device of non-volatile read/write memory, read-only memory and/or volatibility.Especially, memory 128 can comprise the read-only memory storing basic operating system instruction, store reusable data, as the non-volatile read/write memory of configuration information, directory information and other information, and the instruction of short-term and/or the volatile read/write memory of ephemeral data can be stored.

Fig. 2 shows the system environments can run according to the Wireless Telecom Equipment 100 of some execution modes.As shown therein, communicate with the WAP (wireless access point) 200 in WIFI communication system with the wireless communication link 75 set up between access point 200 by the WIFI transceiver 140B in communication equipment 100 according to the Wireless Telecom Equipment 100 of some execution modes.Wireless Telecom Equipment 100 can also be communicated with the eNodeB base station 300 of LTE communication system by the communication link 70 set up by the LTE transceiver 140A in Wireless Telecom Equipment 100.

Described Wireless Telecom Equipment 100 can communicate with honeycomb/PCS base station 350 further by wireless communication link 80, and/or is communicated with bluetooth-enabled device 250 by band wireless blue tooth communication link 85.

As an example of the mobile Supplemental Channel Assignment according to some execution modes, consider 2.4GHzISM frequency band and the UMTS frequency band 7 respectively above and below ISM frequency band and UMTS frequency band 40.2.4GHzISM frequency band is defined as from 2400MHz to 2483.5MHz.UMTS frequency band 7 is defined as from 2500MHz to 2690MHz, and UMTS frequency band 40 is defined as from 2300MHz to 2400MHz.Therefore, be not separated between UMTS frequency band 40 and 2.4GHzISM frequency band, the interval between the ISM frequency band of UMTS frequency band 7 and 2.4GHz only has 16.5MHz.

In this, situation is described in figure 3.In addition, also show the assignment of RX (reception) and the TX (transmission) run in frequency band in Fig. 3.UMTS frequency band 40 is not paired TD-LTE (LongTermEvolution, the Long Term Evolution) frequency bands applying time division duplex (TDD).ISM frequency band is also the not paired frequency band applying TDD.UMTS frequency band 7 is paired frequency bands.The lower frequency ranges of UMTS frequency band 7 is assigned to up link (corresponding to the transmission/TX of communication terminal in this frequency band), and lower frequency range is assigned to down link (reception/RX corresponding to communication terminal).

Fig. 3 also show example belt filter characteristic 50A, 50B and 50C of the filter of the signal (dotted line) of the TX/RX be respectively applied in UMTS frequency band 40, ISM frequency band and UMTS frequency band 7.Assuming that the passband of belt filter covers whole relevant frequency band, and there is the suppression of general 30dB apart from band edge 20MHz place.

As the first example, as shown in Figure 4, suppose WiFi transceiver 140B run on ISM frequency band compared with on the channel 61B in lower part, and the higher part that Long Term Evolution (LTE) transceiver 140A runs on frequency band 40 divide in channel 61A on.At first, may be comprised the 10MHz channel 61A for LTE in the frequency band 40 and 22MHz channel 61B for WiFi in ISM frequency band by the channel selected, position as shown in Figure 4.Close due to the channel that just using, filtering may be not enough to the mutual interference between the signal that reduces.Due to limited linear in RX front end, may cause blocking.

For WiFi transceiver 140B, the higher part by WiFi channel moves in ISM frequency band will be needed to divide, such as, move to channel 62B.In order to accomplish this point, Wireless Telecom Equipment 100 may need again to consult to redistribute selected channel with WAP (wireless access point) (AP) 200.Selectively, Wireless Telecom Equipment 100 may distort channel quality reporting, and indicate bad reception (that is, it may exaggerate the one side of poor quality), like this, access point 200 will move to upper frequency channel, as being shown in Fig. 4.In this example, the communication of WiFi transceiver 140B is moved to channel 62B by from channel 61B.

Although WIFI specification identification 14 overlapped channels (channel spacing is 5MHz), only have three non-overlapped channels to be used.These three channels are 22MHz width separately, and from center to center interval 25MHz, jointly cover whole 2.4GHz frequency band fully.Usually, channel number 1,6 and 11 is only had to be used.Only has the interference that lower channel (channel number 1-3) may easily be subject to from common location transceiver.Therefore, if Wireless Telecom Equipment asks the channel of new channel to be redistributed from channel 1, then AP200 will select different channels, and this channel for exceed 25MHz or 50MHz in frequency.

For LTE channel, two kinds of methods can be used.LTE applies the OFDM (OFDMA) with frequency domain dispatching.That is, the assignment of these OFDM subcarriers is the quality based on these subcarriers.Periodically, reported with reported frequency band quality (pilot signal scattered at frequency band is used to determine total quality) to feed back to eNodeB base station 300 feedback channel quality designator (CQI) by described Wireless Telecom Equipment.The CQI of Wireless Telecom Equipment 100 can be carried out, make eNodeB base station 300 will dispatch this specific mobile phone only at channel compared with lower part, as shown in fig. 5.In LTE, data are dispatched in Resource Block, and each Resource Block comprises 14 OFDM symbol (1 millisecond) and 12 subcarriers (180 kilo hertzs).Fig. 5 shows how to assign to comparatively lower part assigned resources block again from the higher part of RF channel.CQI can indicate momentary channel quality simultaneously in both time domain and frequency domain.

CQI only comprises the quality report of the Resource Block (pilot tone or reference symbol are scattered in the Resource Block sent in the downlink) in use.In some embodiments, the unsuccessful assignment of repetition is attempted causing eNodeB base station 300 to change based on CQI and is assigned, thus described eNodeB base station 300 will be removed assignment of resources from disturbed area.

According to some execution mode, what send from Wireless Telecom Equipment 100 is defined in the message of wireless heterogeneous networks (RRC) layer, and its request eNodeB base station 300 is at the specific part assigned resources block of frequency band.This may reduce the time and/or resource of locating available channel consumption when only responding CQI.

In further execution mode, channel detection can be used to identify available band.This be pilot tone/reference symbol distribute whole frequency band up link in the method that usually adopts.Then, which part that this receiver can be determined in frequency band based on the quality of reference symbol is available.Similar program also can be carried out in the downlink.According to some execution mode, the detectable signal covering whole frequency band is sent to Wireless Telecom Equipment 100 by eNodeB base station 300.Thereafter, Wireless Telecom Equipment 100 can report back that covers a CQI for whole frequency band, and the Resource Block in the part of the frequency band that (or being used potentially) frequency band that it shows that location transceiver together uses is contiguous is of poor quality.Based on above-mentioned CQI, eNodeB wireless communication terminal 100 knows the position of not assigning Resource Block.

Selectively, CQI can show that whole channel is bad.In this case, eNodeB base station 300 may move down whole channel in frequency, such as, moves to channel 62A from channel 61A, as shown in Figure 4.

In another example, in frequency band 40, bluetooth transceiver 140D may run with LTE transceiver 140A simultaneously.In this case, the carrier wave in the self adaptive frequency-hopping system of bluetooth is selected can be that frequency-hopping carrier in only having the higher part of ISM to divide is selected.Bluetooth specification V4.0 supports this concept (input namely based on the main equipment of such as mobile phone and so on selects frequency-hopping carrier in AFH).

In the above example, the higher position that WiFi radio channel may be placed in ism bands influences each other with the radio avoided with run in frequency band 40.In a similar fashion, WiFi radio channel can be placed lower position in ism bands to avoid influencing each other with the radio run at frequency band 7.

Bluetooth AFH (AFH) carrier assignment is defined, such as, in bluetooth specification version 4.0 [the 2nd volume] 4.1.4 saves.As described in it, main device uses the subset in available carrier wave only by " LMP_set_AFH " message instruction ancillary equipment.As described in AFH protocol Data Unit (PDU) described in table 4.5 in Bluetooth specification define " LMP_set_AFH " message, it comprises AFH_Instant field, AAFH_mode field, AFH_Channel_Map field.

AFH_Instant field refers to that AFH is in main equipment and the future time point from equipment.AFH_mode field represents and enables or disables AFH.AFH_Channel_Map field represents the subset of 79 frequency carriers, and which carrier wave it indicates may be used for frequency hopping and which carrier wave is not useable for frequency hopping.

According to some execution modes, AFHPDU can be sent to remote Bluetooth devices 250 by Wireless Telecom Equipment 100.In AFH_Channel_Map field, lower (when disturbing with frequency band 40) frequency carrier or higher (when disturbing with frequency band 7) frequency carrier may get clogged (being namely not useable for frequency hopping).LMP Link Manager Protocol (LMP) message " LMP_set_AFH " is sent to secondary equipment by main equipment, to force the subset in its use available carrier wave.Be in the execution mode of bluetooth master at Wireless Telecom Equipment 100, Wireless Telecom Equipment 100 will set up the channel mapping of oneself.If Wireless Telecom Equipment 100 is Bluetooth slave devices, then " LMP_channel_classification " message can be sent to long-range main equipment 250 by Wireless Telecom Equipment 100, and wherein which carrier wave is this message indicate be bad.Finally, all final channel mapping is set by main equipment.Main equipment can require that secondary equipment sends the assessment of its carrier wave by " LMP_channel_classification_req " message as shown in Figure 6.

Current channel for passing on the frequency hopping channel of these LMP message and frequency hop sequences.The future time point set in AFH_instant field shows when use new frequency hopping channel.Any new LMP message (comprising those for again changing the message of carrier subset) is transmitted, until the AFH_instant that the next one may be defined on the channel that this is new.

In gsm system, Channel Assignment message is by downlink control channel transmission.When connection is arranged, this will be access grant channel (AGCH), and access grant channel is a part of Common Control Channel (CCCH).3rd layer of " ImmediateAssignment " message comprises point RF carrier wave tasking described mobile radio station (MS).This message is sent to described MS by from base transceiver systems (BTS).

In connection procedure, different carrier waves can be assigned, comprising dividing the RF tasking MS carrier wave by the 3rd layer of message " Assignmentcommand ".Described assignment message is sent to MS by BTS by SACCH slow associated control channel (SACCH).

Mobile Supplemental Channel Assignment according to some execution modes can realize in LTE system as shown below.In LTE down link, a front n OFDM symbol (n<4) is used to downlink control signaling.In these OFDM channels, assignment messages is sent to user's set (UE) (corresponding to described Wireless Telecom Equipment 100) and is used to down link and/or uplink communication to indicate which Resource Block (set of carrier wave+time slot).

According to certain embodiments of the present invention, the channel that different RF transceiver uses may be spaced enough far away to enable the filter in transceiver reduce mutual interference between transceiver fully.Due to Wireless Telecom Equipment know which radio of given moment be in operation and which frequency band in use, therefore described Wireless Telecom Equipment can indicate its preferred RF channel to network.In some embodiments, if 1) multiple transceiver runs simultaneously, and 2) in transceiver the channel used due to from too close to and mutual interference may be produced, then Wireless Telecom Equipment can be taken action.In some embodiments, what connection manager in a wireless communication device controlled Channel assignment is auxiliary.

Transceiver in Wireless Telecom Equipment, such as one little portable communication device, the channel be spaced sufficiently far apart in a frequency domain by making Web vector graphic, can make to run and avoid undesired hydraulic performance decline and/or unwanted cost, large-scale front end filter.Therefore, the total cost of the Wireless Telecom Equipment that can reduce according to the system/method of some execution modes and/or size.

Illustrate in greater detail in the figure 7 according to the system of some execution modes or method, Fig. 7 is the flow chart according to the executable operation of the Wireless Telecom Equipment of some execution modes.With reference to Fig. 7, the Wireless Telecom Equipment 100 (Fig. 1) comprising multiple RF transceiver 140A to 140D distributes (frame S10) from network (as from base station 300 or WAP (wireless access point) 200) receive channel.One in the transceiver 140A to 140D of channel assigned identities in Wireless Telecom Equipment 100 channel being authorized to the communication for up link (transmission) and/or down link (reception).

In frame S20, Wireless Telecom Equipment 100 determines that another in equipment in RF transceiver 140A to 140D is current whether in operation.Run if another in RF transceiver 140A to 140D is current, then described Wireless Telecom Equipment 100 determines whether distributed channel conflicts (frame S30) with any one channel of the current use of equipment 100.That is, in some embodiments, the band edge that the frequency that Wireless Telecom Equipment 100 can be determined in institute's allocated channel is set as channel that distance wireless communication equipment used and/or frequency band is less than the frequency distance of restriction.In some embodiments, the frequency distance of described restriction can based on the characteristic of the one or more belt filters in Wireless Telecom Equipment 100.Such as, the frequency distance limited may be the bandwidth of roll-offing of 30dB, as described below.

Such as, assuming that a RF transceiver runs in device 100, and the first channel in the first frequency band is used in.(namely what the band pass filter of the first frequency band had a 30dB roll-offs point, the signal attenuation point of 30dB), it is R hertz apart from the edge of described first frequency band, and what this may be defined as-the 3dB of filter in some systems roll-offs a little, as shown in Figure 8.Bandwidth of roll-offing under these circumstances may be R hertz.Generally, desirably make common location transceiver operate on the frequency band of signal from nearby frequency bands suppressed 30dB (reference band edge) or more.

Should be appreciated that, in Wireless Telecom Equipment 100, each RF transceiver can adopt the band pass filter with different roll-off characteristic.Therefore, the bandwidth R that roll-offs of the belt filter in a RF transceiver may be different from the bandwidth R that roll-offs of the belt filter in another RF transceiver.

When Wireless Telecom Equipment 100 is from the network reception be connected to channel allocation for the 2nd RF transceiver equipment 100, whether the channel that described Wireless Telecom Equipment carries out checking to confirm as the 2nd RF transceiver distribution is in the R hertz of the first channel, if be in the R hertz of the first channel, then Wireless Telecom Equipment can determine that distributed channel has conflict.

In some embodiments, Wireless Telecom Equipment can check to determine whether that the first channel is in the R hertz of the second frequency band and second channel (as shown in Figure 3) in the R hertz of the first frequency band, wherein in situation, Wireless Telecom Equipment can determine distributed channel confliction.Should be appreciated that, for different channels, the bandwidth R that roll-offs can be different, and the bandwidth R that roll-offs of such as the first channel is different from the bandwidth R that roll-offs of second channel.That is, the existence of conflict can by determining frequency interval between the channel that distributes and/or determining by determining frequency interval between distributed channel and adjacent frequency band.

If determine distributed channel confliction, then Wireless Telecom Equipment 100 can redistribute the individual channel or whole two channels (frame S40) that clash from the network request be connected with it.Once Wireless Telecom Equipment 100 receives new channel allocation (frame S50), operation just returns frame S30 to determine whether the channel redistributed conflicts.If determine do not have other radio to run in Wireless Telecom Equipment 100 in frame S20, or determine that channel does not conflict in frame S30, then distributed channel is used to communicate (S60).

In some embodiments, connection manager 170 can scan band and determine and identify that free channel is to be advised to base station or access point.Alternatively, or in addition, connection manager 170 can the acceptable frequency range therefrom selecting new channel of informing network.Radio 140A-140D different in Wireless Telecom Equipment 100 comprises its interference level associated and filter characteristic is known when designing.These data can be stored and use when checking to determine whether channel allocation is leaned on too near for connection manager 170 in a lookup table.Alternately, connection manager 170 can receive the CQI from radio device 140A-140D itself.Had these information, this connection manager can ask network assigning channels again.

Message flow according to certain embodiments of the present invention illustrates in fig .9, illustrates that the information channel performed by the LTE transceiver 140A in Wireless Telecom Equipment 100 and connection manager 170 reselects.

After LTE network registration, LTE transceiver 140A distributes 310 from eNodeB base station 300 receive channel.Channel allocation information 31 is sent to connection manager 170 by LTE transceiver 140A, and instruction has been assigned to the channel/subcarrier of LTE transceiver 140A..Channel/subcarrier that connection manager 170 distributes, and determine, the already present channel allocation whether this channel allocation is using with another transceiver in Wireless Telecom Equipment clashes or clashes potentially, as discussed above, because the spacing deficiency between institute's allocated channel causes.

In response to determining that conflict or potential conflict exist, channel is reselected signal 314 and is sent to LTE transceiver 140A by connection manager 170, CQI (CQI) 316 is sent to eNodeB base station 300 by LTE transceiver 140A successively, the bad channel quality that instruction distributes.In some embodiments, the clear and definite message except CQI can be sent to eNodeB base station 300 to notify use or do not use which frequency by connection manager.Thereafter, the channel allocation 318 of renewal can be sent to LTE transceiver 140A by eNodeB base station 300.

Those skilled in the art will appreciate that the present invention may be embodied as method, data handling system and/or computer program.Therefore, the present invention can be the form of devices at full hardware execution mode, the full execution mode of Software Implementation or integration software and hardware aspect, and all these are here all referred to as " circuit " or " module ".In addition, the present invention can in the form of the computer program in tangible computer-usable storage medium, and it has the computer program code comprising and can be performed by computer in the medium.Any tangible computer-readable medium suitably can be used, and comprises hard disk, CDROM, optical storage or magnetic storage device.

Flow process above with reference to the method according to embodiment of the present invention, system and computer program illustrates and/or block diagram describes some embodiments of the present invention.Will appreciate that, the signal of these flow processs and/or each frame of block diagram, and the combination of frame in flow process signal and/or block diagram can be performed by computer program instructions.These computer program instructions can be supplied to the processor of all-purpose computer, special-purpose computer, or be supplied to other programmable data processing unit, with manufacturing machine, the instruction performed via the processor of computer or other programmable data processing unit is made to create device for performing the function/action of specifying in one or more frames of flow chart and/or block diagram.

These computer program instructions also can be stored in computer-readable memory, described computer-readable memory instructs computer or other programmable data processing unit run in a particular manner, the instruction making to be stored in computer-readable memory produces the goods comprising command device, and described command device performs the function/action of specifying in one or more frames of flow chart and/or block diagram.

Computer program instructions also can be loaded on computer or other programmable data processing unit, perform on the computer or other programmable apparatus to make a series of operating procedure, to produce computer implementation, the instruction performed on the computer or other programmable apparatus is made to be provided for performing the step of the function/action of specifying in one or more frames of flow chart and/or block diagram.

Should be appreciated that the function/action marked in frame can not in accordance with occurring in sequence of marking in service chart.Such as, in fact two frames illustrated continuously can substantially side by side be performed, or frame sometimes can perform in reverse order, this depend on involved functional/action.Although some figure are included in arrow communication path representing Primary communication direction, should be appreciated that communication can occur on the direction contrary with described arrow.

Computer program code for performing operation of the present invention can with OO programming language as Java, Smalltalk or C++ write.But, also can with traditional procedural programming languages as " C " programming language be write for the computer program code performing operation of the present invention.Program code can perform completely on the computer of user, partly perform on the computer of user, as independently software kit, partly on the computer of user and partly on the remote computer, or perform completely on the remote computer.In rear a kind of scheme, remote computer can pass through the computer that local area network (LAN) (LAN) or wide area network (WAN) are connected to user, or the connection (such as, by using the internet of Internet Service Provider) can carried out outer computer.

Many different execution modes are disclosed herein in conjunction with above-mentioned specification and accompanying drawing.Should be understood that, word for word describe and illustrate that each combination of these embodiments and time combination too will repeat and make it fuzzy.Therefore; all execution modes by any way and/or can combine and be combined; this specification (comprising accompanying drawing) should be considered as forming the detailed written description book of the mode of execution mode as herein described and making and these execution modes of use and all combinations of process and time combination, and should support the claim of claimed any such combination or secondary combination.

Disclosed exemplary embodiment of the present invention in the accompanying drawings and the description, although employ specific term, they are only used with general and descriptive meaning and are not used in the object of restriction, and scope of the present invention is explained by claims.

Claims

1. a Wireless Telecom Equipment, this Wireless Telecom Equipment comprises:

First radio frequency (RF) transceiver, it is configured at the first frequency band sending/receiving RF signal;

2nd RF transceiver, it is configured to be different from the second frequency band sending/receiving RF signal of described first frequency band; And

Connection manager, it is coupled to a described RF transceiver and described 2nd RF transceiver, and be configured to the Channel assignment of an auxiliary described RF transceiver and described 2nd RF transceiver, to reduce the mutual interference between a described RF transceiver and described 2nd RF transceiver; Wherein:

A described RF transceiver is configured to the first channel allocation information to be sent to described connection manager, indicates a described RF transceiver send and/or receive the first channel of RF signal of communication;

Described 2nd RF transceiver is configured to second channel assignment information to be sent to described connection manager, indicates described 2nd RF transceiver send and/or receive the second channel of RF signal of communication; And

Described connection manager is configured to analyze described first channel allocation information and described second channel assignment information to determine whether there is potential interfering with each other between the RF signal of communication that send/receive on described first channel and the RF signal of communication that send/receive on described second channel;

Wherein, potential interfering with each other is there is in response between the RF signal of communication determining to send/receive on described first channel and the RF signal of communication that send/receive on described second channel, described connection manager is configured to channel to be reselected signal and is sent to a described RF transceiver and/or described 2nd RF transceiver, instruction its select different channels send/receive RF signal of communication; And

Wherein, reselect signal in response to receiving described channel, a described RF transceiver and/or described 2nd RF transceiver are configured to channel adjustment request to be sent to far-end network access point, and the channel that request dispatching is new send/receive RF signal of communication.

2. Wireless Telecom Equipment according to claim 1, wherein, described channel adjustment request comprises the bad CQI (CQI) of channel quality that instruction distributes.

3. Wireless Telecom Equipment according to claim 1, wherein, a described RF transceiver is configured to according to the first wireless communication protocol at the first frequency band sending/receiving RF signal, and described 2nd RF transceiver is configured to according to being different from the second wireless communication protocol of described first wireless communication protocol at described second frequency band sending/receiving RF signal.

4. a Wireless Telecom Equipment, this Wireless Telecom Equipment comprises:

Wherein, a described RF transceiver comprises bluetooth transceiver, and wherein, a described RF transceiver is configured to the frequency-hopping carrier selecting not conflict with the frequency that described 2nd RF transceiver uses.

5. a Wireless Telecom Equipment, this Wireless Telecom Equipment comprises:

Described connection manager is configured to analyze described first channel allocation information and described second channel assignment information to determine whether there is potential interfering with each other between the RF signal of communication that send/receive on described first channel and the RF signal of communication that send/receive on described second channel; And

Wherein, described connection manager is configured to: being separated by response to described first channel and described second channel is less than R hertz distance, determine to there is potential mutual interference between described first channel and described second channel, wherein, the front end filter characteristic in response to a described RF transceiver and described 2nd RF transceiver determines R.

6. a Wireless Telecom Equipment, this Wireless Telecom Equipment comprises:

Wherein, institute's connection manager is configured to: if the edge of described first channel and described second frequency band is separated by be less than R hertz distance, then determine to there is potential mutual interference between described first channel and described second channel, the width that the 30dB of belt filter that wherein R equals in a described RF transceiver or described 2nd RF transceiver roll-offs a little.

7. a Wireless Telecom Equipment, this Wireless Telecom Equipment comprises:

Wherein, described connection manager is configured to: if the edge of described first channel and described second frequency band is separated by and is less than R2 hertz distance and the edge of described second channel and described first frequency band is separated by and is less than R1 hertz distance, then determine to there is potential mutual interference between described first channel and described second channel, and wherein determine R1 and R2 in response to the front end filter characteristic of a described RF transceiver and described 2nd RF transceiver.

8. the method for an operate wireless communication equipment, described Wireless Telecom Equipment comprise be configured to the first frequency band sending/receiving radio frequency (RF) signal a RF transceiver, be configured to the second frequency band sending/receiving RF signal being different from described first frequency band the 2nd RF transceiver and be coupled to the connection manager of a RF transceiver and the 2nd RF transceiver, said method comprising the steps of:

Analysis of allocated gives the RF channel of a described RF transceiver and described 2nd RF transceiver to characterize the degree interfered with each other between a described RF transceiver and described 2nd RF transceiver;

The channel distributed is refused in response to the mutual interference degree between a described RF transceiver and described 2nd RF transceiver;

From a described RF transceiver, the first channel allocation information is sent to described connection manager, indicates a described RF transceiver send and/or receive the first channel of RF signal of communication;

From a described RF transceiver, second channel assignment information is sent to described connection manager, indicates described 2nd RF transceiver send and/or receive the second channel of RF signal of communication;

Analyze described first channel allocation information and described second channel assignment information to determine whether there is potential mutual interference between the RF signal of communication that send/receive on described first channel and the RF signal of communication that send/receive on described second channel;

Potential mutual interference is there is in response between the RF signal of communication determining to send/receive on described first channel and the RF signal of communication that send/receive on described second channel, channel is reselected signal and is sent to a described RF transceiver and/or described 2nd RF transceiver, instruction its select different channels send/receive RF signal of communication; And

Reselect signal in response to receiving described channel, channel adjustment request is sent to far-end network access point from a described RF transceiver and/or described 2nd RF transceiver, and the channel that request dispatching is new send/receive RF signal of communication.

9. method according to claim 8, wherein, described channel adjustment request comprises the bad CQI (CQI) of channel quality that instruction distributes.

10. method according to claim 8, wherein, a described RF transceiver send/receive RF signal according to the first wireless communication protocol at described first frequency band, and described 2nd RF transceiver is according to being different from the second wireless communication protocol of described first wireless communication protocol at described second frequency band sending/receiving RF signal.

The method of 11. 1 kinds of operate wireless communication equipments, described Wireless Telecom Equipment comprise be configured to the first frequency band sending/receiving radio frequency (RF) signal a RF transceiver, be configured to the second frequency band sending/receiving RF signal being different from described first frequency band the 2nd RF transceiver and be coupled to the connection manager of a RF transceiver and the 2nd RF transceiver, said method comprising the steps of:

Analyze described first channel allocation information and described second channel assignment information to determine whether there is potential mutual interference between the RF signal of communication that send/receive on described first channel and the RF signal of communication that send/receive on described second channel; And

Potential mutual interference is there is in response between the RF signal of communication determining to send/receive on described first channel and the RF signal of communication that send/receive on described second channel, channel is reselected signal and is sent to a described RF transceiver and/or described 2nd RF transceiver, instruction its select different channels send/receive RF signal of communication;

Wherein, a described RF transceiver comprises bluetooth transceiver, and described method is further comprising the steps of: the frequency-hopping carrier selecting the frequency conflicts do not used with described 2nd RF transceiver.

The method of 12. 1 kinds of operate wireless communication equipments, described Wireless Telecom Equipment comprise be configured to the first frequency band sending/receiving radio frequency (RF) signal a RF transceiver, be configured to the second frequency band sending/receiving RF signal being different from described first frequency band the 2nd RF transceiver and be coupled to the connection manager of a RF transceiver and the 2nd RF transceiver, said method comprising the steps of:

Be separated by response to described first channel and described second channel and be less than R hertz distance, determine to there is potential mutual interference between described first channel and described second channel, wherein, the width that the 30dB of belt filter that R equals in a described RF transceiver or described 2nd RF transceiver roll-offs a little.

The method of 13. 1 kinds of operate wireless communication equipments, described Wireless Telecom Equipment comprise be configured to the first frequency band sending/receiving radio frequency (RF) signal a RF transceiver, be configured to the second frequency band sending/receiving RF signal being different from described first frequency band the 2nd RF transceiver and be coupled to the connection manager of a RF transceiver and the 2nd RF transceiver, said method comprising the steps of:

If the edge of described first channel and described second frequency band is separated by be less than R hertz distance, then described connection manager determines to there is potential mutual interference between described first channel and described second channel, wherein, the width that the 30dB of belt filter that R equals in a described RF transceiver or described 2nd RF transceiver roll-offs a little.

The method of 14. 1 kinds of operate wireless communication equipments, described Wireless Telecom Equipment comprise be configured to the first frequency band sending/receiving radio frequency (RF) signal a RF transceiver, be configured to the second frequency band sending/receiving RF signal being different from described first frequency band the 2nd RF transceiver and be coupled to the connection manager of a RF transceiver and the 2nd RF transceiver, said method comprising the steps of:

Analysis of allocated gives the RF channel of a described RF transceiver and described 2nd RF transceiver to characterize the degree interfered with each other between a described RF transceiver and described 2nd RF transceiver; And

From a described RF transceiver, second channel assignment information is sent to described connection manager, indicates described 2nd RF transceiver send and/or receive the second channel of RF signal of communication; And

Wherein, described connection manager is configured to: the edge in response to described first channel and described second frequency band is separated by and is less than R2 hertz distance and the edge of described second channel and described first frequency band is separated by and is less than R1 hertz distance, determine to there is potential mutual interference between described first channel and described second channel, and wherein, the width that the 30dB of the belt filter that R1 equals in a described RF transceiver roll-offs a little, and the width that the 30dB of belt filter that wherein, R2 equals in described 2nd RF transceiver roll-offs a little.