CN101588202B - Wireless communication system and communication method - Google Patents

Abstract

The present invention relates to a wireless communication system. The wireless communication system comprises the following components: a receiving component which is used for receiving data from a communication partner in a first time slot and a second time slot; a sequence conflict monitoring component which is used for detecting the sequence conflict in the first time slot; a request transmitting component which is used for transmitting a frequency hopping mode changing request of the first time slot when the sequence conflict in the first time slot is detected by the sequence conflict monitoring component.

Description

Wireless communication system and communication means

The application is that application number is 200480019769.2, the applying date is on July 9th, 2004, denomination of invention is divided an application for the application for a patent for invention of " wireless communication system and communication means ".

Technical field

The present invention relates to a kind of be used to utilizing wireless signal to realize the wireless communication system of the communication of audio signal.

Background technology

Recently, at the radio Phone unit that is used for transmitting by radio audio signal, the digital communication of the TMDA-TDD system of utilization such as DECT system or PHS system has become main flow.And at the IMS frequency band, TDMA-TDD system communication device is developed, and it is made up of the frequency-hopping system that is used for executive communication when changing frequency of utilization gradually.

When realizing radio communication, prevent from becoming important problem because the communication quality that radio interference causes worsens.In the communicator of the tdma system that uses frequency-hopping system, generally speaking utilized the method that prevents from producing owing to radio interference mistake that has wherein adopted so-called channel switch method.In the channel switch system, the local channel that can be utilized to communicate by letter becomes for the standby channel that substitutes, and in the good occasion of wireless status, when pressing predefined procedure exchange channel (frequency), the channel that will be different from the standby channel is used for communication.During the wireless quality variation of the channel in using, give notice to communication parter, its indication substitutes the channel of the variation that is used for the standby channel, and communication continues.

Yet, in channel switch, because channel is just replaced after radio worsens appearance, so be difficult to prevent initial reception mistake.And in the occasion of having only several standby channels to use, another problem of existence is that the not satisfied channel of all that wireless status can not be replaced to the standby channel.On the other hand, in the occasion that the standby number of channel increases, channel (frequency) number that is used for communication has been lowered, and the frequency band of the frequency of frequency hopping diffusion narrows down.This result who brings is to run in the opposite direction with the intrinsic purpose that spreads by frequency hopping broadening frequency.Therefore, become and be difficult to fully prevent disturb.

And, as being subjected to radio interference to influence still less communication system, a kind of like this system has been proposed, in this system, in a plurality of Radio Links of setting up, select to have the Radio Link of good communication state, and attempt to improve communication quality.In the radio communication device of the tdma system that uses present method, the signal that the audio signal that will send by digital conversion by a plurality of time slots transmissions in a frame obtains, and from receive data, select its condition of acceptance good data the recipient at a plurality of receiving slots of a frame, and reconstructed audio signal accordingly.With respect to the reference of selecting, be used in the time slot that does not have mistake (that is, not having CRC 124 mistakes to be detected), selecting the method for data easily to realize in wrongheaded CRC 124 Data Detection of utilizing and voice data sends together that are used for.

Publish in the communique at day unexamined patent application Di Ping of the present disclosure-7-28248 Japan Patent, introduced frequency diversity, wherein in the frequency of each time slot in frame of a plurality of frequency shifts in utilizing time-diviional radiocommunication system (time period of dividing in a frame becomes a time slot) in system's (frequency hopping) of executive communication, all signals in a frame are mutually the same, and the transmission frequency that identical signal utilization changed by the time sends identical signal.In addition, this is called the time slot diversity technique, because not only frequency is changed, and in a frame, sends identical signal by a plurality of time slots.

Yet, only repeatedly sending identical data by a plurality of time slots in the frame (or all time slot) and selecting to be in the method for the signal in the good time slot, the problem that exists is, and only compares by the situation of a Radio Link executive communication, consumed many Radio Resources.Specifically, in utilizing the tdma communication of frequency-hopping system, the consumption of Radio Resource becomes the big problem for the communicator of the interference that prevents channel switch, because, in utilizing the tdma communication of frequency-hopping system, owing to be difficult to replace channel in response to the condition of acceptance that receives partners with respect to all of the broadcast singal that is used for control at the communicator of the interference that is used for preventing channel switch, so can not carry out channel switch with respect to the broadcast singal that is used for control.Therefore, even owing to appear at audio signal for service and be superimposed upon for the occasion on the communication time slot of broadcast singal of control and be difficult to also prevent that wireless quality from worsening, so the communication time slot that is used for control can not be thought that communication service institute is common and use.Therefore, be utilized as the tdma communication device of interference that is used for preventing channel switch that control takies a frequency-hopping system that can use time slot, the timeslot number that the increase that is used for the timeslot number of single communication service causes communicating by letter possible simultaneously descends, and in this situation, it influences communication significantly unfriendly.

And, because in the conventional method that is used for setting up a plurality of Radio Links and being used for selecting the signal of Radio Link in good order and condition, a plurality of Radio Links are established when executive communication always, the Radio Resource that can be used, namely have only half or more the time slot of minority can be used in the tdma system simultaneously.

In addition, in order to minimize the decline of Radio Resource, a kind of like this method has been proposed, utilize this method, detecting the occasion that wireless signal worsens, new Radio Link is established, and select and rebuild the signal of its accepting state good wireless link, when the deterioration of wireless signal is enhanced, allow a Radio Link finish, and other Radio Link is opened.Yet described accepting state is not good, and a plurality of Radio Links are established after the state that worsens at radio is identified.And, always in the aggravating circumstances, can not avoid the deterioration at the communication quality of communication beginning at wireless quality.

And, even in traditional time slot diversity apparatus, when taking place, the sequence conflict may avoid communication failure as system, and communication also is impossible in the communication time slot that the sequence conflict has taken place, and wherein diversity effect is lost.

Summary of the invention

In view of aforesaid the problems of the prior art, therefore the purpose of this invention is to provide a kind of radio communication device and communication means, wherein, utilizing under the situation about realizing in the tdma communication system of frequency hopping with the method that is chosen in the signal of its accepting state good wireless link for setting up a plurality of Radio Links, comprising that the optional time slot of time slot for control sets up a plurality of Radio Links, and Radio Resource is used effectively.

In view of aforesaid the problems of the prior art, according to a first aspect of the invention, first communication unit (hereinafter will be referred to as machine tool) is at least one time slot in predetermined frame cycle, transmission becomes the wireless signal (hereinafter will be referred to as the control wireless signal) of reference, and another second communication unit (hereinafter will be referred to as handset) receives aforesaid control wireless signal during standby, and guarantee with respect between the timing of the timing of the machine tool of frame and time slot and frequency hopping synchronously; Wherein, a first aspect of the present invention provides, and is used for setting up a plurality of Radio Links and is used for communicating devices betwixt between machine tool and handset when beginning to communicate by letter; And at least one in the aforesaid device makes signal of communication and the control wireless signal between machine tool and handset overlap each other, and set up Radio Link, and, in the occasion of utilizing a plurality of Radio Links executive communication between machine tool and handset of setting up, its first aspect can send by utilizing for the time slot of controlling and send and the signal of reception and at least one of control signal via aforesaid a plurality of Radio Links, and has the effect that can effectively utilize Radio Resource.

And, a second aspect of the present invention provides, be used for usually setting up at the time slot that is different from the time slot (hereinafter being referred to as the control time slot) that sends control information when setting up a plurality of Radio Link for the communication between machine tool and handset the device of a plurality of Radio Links, and it moves on to the time slot of the Radio Link of foundation like this by the control time slot that makes control information and will be sent out; Wherein, when setting up a plurality of Radio Link, can be used in the process of setting up first Radio Link and be similar to be used to setting up second and the process of the Radio Link of coming in afterwards, and bring the effect that to simplify the circuit configuration of this device by it.In addition, be right after at first Radio Link and be different from after the time slot of controlling time slot is established, machine tool makes the signal of communication that obtains handset overlapping at the control time slot, can set up new Radio Link and not need the process of any complexity at described control time slot.

And, a third aspect of the present invention is such: after handset is set up first Radio Link, sending time slots by handset sends signal of communication, the sending time slots correspondence of this handset is from the time slot of machine tool receiving control information, wherein, the situation of overlapped signal in the control time slot, set up new Radio Link and do not need the process of any complexity to become possibility at described control time slot, and bring such effect, can be right after thus after setting up first Radio Link and set up new Radio Link at described control time slot.

And, a fourth aspect of the present invention is such: it has such device, it is used for control makes and described control time slot is moved on to the possible timeslot number of communication becomes predetermined threshold or the time slot of the wireless time slot more hour set up, wherein can bring such effect, thus in the enough occasions of message capacity, set up a plurality of Radio Links being different from the time slot of controlling time slot, and in the inadequate occasion of message capacity, can will move on to the control time slot by being different from the time slot of controlling time slot for the Radio Link of communicating by letter now, and in response to the free time of message capacity, set up a plurality of Radio Links being different from the time slot of controlling time slot, its communication quality is high when enough in the described free time, and utilize described control time slot to enable a plurality of Radio Links, by this control time slot, can effectively utilize Radio Resource when inadequate in the described free time.

And, a fifth aspect of the present invention is such: machine tool has such device, it is used for sending the control wireless signal that comprises control information, this control information notice be periodically or aperiodicity enable a plurality of Radio Links, and on the other hand, handset has such device, it is used for receiving all or part of of aforesaid control wireless signal, based on the aforesaid control wireless signal that sends by machine tool, whether handset is notified enables a plurality of Radio Links, and it is responded and controls handset, be to set up a plurality of Radio Links or set up a Radio Link for communication for communication when executive communication in order to determine, wherein when selecting machine tool, handset is only by receiving control channel can easily find a plurality of Radio Links of permission before the communication beginning machine tool.

In addition, a sixth aspect of the present invention provides such device, it is used for whether permitting a plurality of Radio Links by the wireless signal notice, and such device, it is used for whether a plurality of Radio Link is licensed by the wireless signal inquiry, wherein before the communication beginning, aforesaid inquiry unit is inquired about whether a plurality of Radio Link is licensed to aforesaid notifying device, and, in response to the licensed occasion of a plurality of Radio Links of advise fate, carry out a kind of like this operation, make a plurality of Radio Links be established, if and disapprove, then carry out a kind of like this operation, make and have only a Radio Link to be established.Simultaneously providing communication request to machine tool by two handsets, and disapprove the occasion of a plurality of Radio Links at second sub-unit terminal, owing to may obtain relevant nearest information of whether permitting a plurality of Radio Links at the machine tool end, no matter when executive communication, it is possible obtaining described information immediately, wherein can bring a kind of like this effect, thus with can prevent useless link extended operation during second handset is communicated by letter.

In addition, a seventh aspect of the present invention provides: a kind of like this device, and it is used for registering handset at machine tool, and a kind of like this device, and it is used for being registered the information of notifying in the operation by machine tool in the handset storage.In the registration operation of aforesaid register device, the relevant a plurality of Radio Links of machine tool notice handset are licensed or not licensed, and handset is stored in described information in the aforesaid storage device.Then, based on the information that is stored in aforesaid storage device, permit the occasion of a plurality of Radio Links in certain handset, handset is operated in order to set up a plurality of Radio Links, and if not licensed, then operation is in order to only set up a Radio Link.Because it is licensed or not licensed may notifying a plurality of Radio Links in the registration operation, so it is possible still disapproving a plurality of Radio Links for each handset permission, for example, licensed for voice communication a plurality of Radio Links in handset, and for data communication, a plurality of Radio Links are not licensed in handset.

And, providing a kind of like this device in a eighth aspect of the present invention, it is used for input user's instruction, and with its storage, and this device is fabricated the instruction that makes according to the user and carries out notice, so that permission or disapprove a plurality of Radio Links, wherein, according to User Status, for example, when having only a handset to be registered in the machine tool, permit all Radio Links, and when a plurality of handsets were registered and have the many handsets that are used simultaneously, a plurality of Radio Links were not licensed.That is to say, enable user's selection, that is, often suffer the occasion of wireless interruption at user environment, a plurality of Radio Links are licensed, and in the less occasion that suffers wireless interruption of user environment, then a plurality of Radio Links are not licensed.In this situation, the user can select, and improves user convenience is become possibility.

And, according to a ninth aspect of the invention, can and become in the wireless communication system that forms wireless network between a plurality of radio communication devices (handset) of slave at the single wireless communication device (machine tool) that becomes main frame, after communication link forms between machine tool and certain handset, be used between machine tool and handset control of communication information and signal an occasion that time slot is superimposed, from being removed the target of channel switch for the superimposed time slot of control of communication information and signal between machine tool and handset, and fixing hop pattern, wherein for being different from the handset that is in the handset in the communication, possibility is receiving control information easily.

And the of the present invention ten aspect is a kind of communicator of frequency-hopping system, and its execution utilizes the frequency diversity communication of two time slots.This communicator is a kind of frequency hopping communicating device, in this frequency hopping communicating device, monitor the reception mistake by each communication time slot, and wherein bring the frequency change process of the time slot that sends and receive conflict to carry out by the control field of utilizing the data format in a time slot, this time slot is not included in other time slots and is consecutively detected the conflict that the occasion that sends and receive conflict is brought.Thus, even nearby exist and transmit and receive data at the wireless device that communicates with identical timing and identical hop pattern and bring the situation of conflict continuously into, if two time slots always are used to communication, and by utilizing another communication time slot to send and receive the message of the hop pattern that changes the time slot of bringing conflict into, then the hop pattern of two FHSS communicators in communication can be changed simultaneously, prevents that wherein the sequence conflict from being possible.

In addition, the 11 aspect of the present invention provides: be used for sending the device that diversity stops, its notifying communication partner time slot diversity stops request; And diversity stops monitor portion, and it is used for monitoring that at the FHSS communicator time slot diversity from communication parter stops request.Thus, be consecutively detected the occasion that sends and receive conflict at other communication time slots, carry out the diversity stopped process by utilize control field at a time slot that is not conflicted, not only in the self radio communication equipment but also in the device of communication parter, finish the disconnection of conflict time slot, and nearby exist and bring the occasion that sends and receive conflict at other time slot at another wireless device that utilizes identical hop pattern to communicate, disconnect process by the Radio Link that utilizes a communication time slot in two FHSS communicators, to carry out the conflict time slot simultaneously.After this, by setting up Radio Link and restart the time slot diversity at the idle time slot that separates, may carry out the diversity communication without any conflict continuously.Therefore, based on the occasion that the conflict time slot cannot easily change as the reason of the communication time slot of FHSS wireless communication system and control time slot simultaneously, prevent that the sequence conflict from being possible in hop pattern.

According to a further aspect of the invention, provide a kind of radio communication device, having comprised: receiving-member is used for receiving data at first time slot and second time slot from communication parter; The sequence conflict monitors parts, is used for detecting the sequence conflict in first time slot when the count value of continuous reception mistake surpasses threshold value; The request transmit block, be used for when described sequence conflict monitors that parts detect the sequence conflict of first time slot, by mode altering request identifier and new frequency-hopping mode are placed in the control field that sends data format, send the hopping pattern change request of first time slot to communication parter at second time slot.

According to a further aspect of the invention, provide a kind of radio communication device, having comprised: receiving-member is used for receiving data at first time slot and second time slot from communication parter; The sequence conflict monitors parts, for detection of the sequence conflict in first time slot; The request transmit block, be used for when described sequence conflict monitors that parts detect the sequence conflict of first time slot, by the time slot diversity being stopped to ask identifier to be placed in the control field that sends data format, stop request at second time slot to communication parter sending time slots diversity.

Description of drawings

Fig. 1 is the block diagram that embodiments of the invention are shown;

Fig. 2 is the block diagram according to the radio communication device of embodiments of the invention 1;

Fig. 3 is the format chart of data format;

Fig. 4 is the descriptive view that time slot configuration is shown;

Fig. 5 is the sequence chart (sequence diagram) of setting up two Radio Links for communication;

Fig. 6 is the sequence chart of setting up two Radio Links for communication;

Fig. 7 is for notifying the permission of Radio Link or the sequence chart between objectionable machine tool (parent set) and the handset (child set) in communication period;

Fig. 8 is for notifying the permission of Radio Link or the sequence chart between objectionable machine tool and the handset at period of registration;

Fig. 9 is the configuration view according to the FHSS communicator of embodiments of the invention 2;

Figure 10 is the flow chart that illustrates for the process that prevents the sequence conflict at identical embodiment 2;

Figure 11 is the configuration view according to the FHSS communicator of embodiments of the invention 3;

Figure 12 is the flow chart that illustrates for the process that prevents the sequence conflict at identical embodiment 3; And

Figure 13 is the configuration view of the FHSS communicator of prior art.

Embodiment

(embodiment 1)

Fig. 1 illustrates composition according to the block diagram of the communicator of wireless communication system of the present invention.Utilize Fig. 1, provide the description of operating below.

As shown in Figure 1, this communicator comprises: antenna 101 is used for transmitting and receiving wireless signal; Send part 102, being used for changing the transmission signal of importing is wireless signal; Receiving unit 103 is used for the wireless signal that decoding receives; Composite part 104 is for generation of the wireless signal of frequency-hopping system and for generation of the sine wave for the necessary definite frequency of decoding; And timing controlled part 105, for generation of the data configuration that is used for time-multiplexed time slot and frame regularly.

Timing controlled part 105 produces according to the timing of the frame of predetermined time section division with in the timing of a frame by the time slot of time division, and carries out time division multiplexing in frame timing and slot timing.

And communicator shown in Figure 1 also comprises: audio treatment part divides 106, is used for the audio signal that digital translation imports and exports the signal that receives to its analog-converted after; Operation part 107 is as numerical key etc.; Ringer 108 is used for entering of notification signal; And control section 109, be used for the whole device of control.

Next, provide description to the operation of wireless communication system according to embodiment 1.Divide 106 pairs of audio signals of importing to be converted to digital signal by audio treatment part, and send to timing control part and divide 105.In timing controlled part 105, will be the necessary composite signal of tdma communication and will adding to by the audio signal of digital translation for necessary CRC 124 codes of error detection, and by the determined timing output signal of the frame of TDMA.

Hereinafter, will describe a kind of like this system, and wherein, in a communication, set up a plurality of Radio Links (hereinafter, having utilized two Radio Links in the described example), and selection has the signal of the Radio Link of good reception signal.

In this case, timing controlled part 105 is for the necessary composite signal of tdma communication with for the necessary CRC code of error detection etc. adds the audio signal of digital translation to, and it is outputed to two time slots in the tdma frame.At this moment, voice data in each time slot in a frame can produce (in this case from each signal of the voice data same area, the transmission data of two time slots become mutually the same), perhaps can produce (in this case, the transmission data of two time slots do not become mutually the same) from for example signal to the voice data those regional zoness of different that send differential response regularly.

Sending part 102 by being used to sine wave from composite part 104 and will being converted to wireless signal from the data of timing controlled part 105 outputs and from antenna 101 outputs.At this moment, with respect to the sinusoidal wave frequency from composite part 104 outputs, press predefined procedure and produce frequency, in order to carry out the communication of frequency-hopping system.

And, by being used to sine wave from composite part 104 at 103 pairs of signal decodings that received by antenna 101 of receiving unit, and sending to timing control part and divide 105.At this moment, with respect to the sinusoidal wave frequency from composite part 104 outputs, press predefined procedure and produce frequency in order to carry out the communication of frequency-hopping system.

In addition, timing controlled part 105 is extracted the data division of audio signal from the decoded data that receives, and it is outputed to audio treatment part divides 106.By utilizing the occasion of two time slot executive communications, select good reception data according to CRC 124 false judgment from the data that received by separately time slot, and output to audio treatment part and divide 106.At this moment, in the situation that the data of identical audio region are sent out, after receiving two data, export any of these data in a frame.

And, the voice data that the voiceband data signal of the zones of different in the zone that sends difference regularly from for example response, produces by the occasion utilizing two time slots and send (in this situation, the transmission data of two time slots do not become identical), the data without any crc error that receive are sent to audio treatment part in order and are divided 106.At this moment, produce the partly occasion of overlapping part in the voice data in being included in front receiving slot and next receiving slot, the lap of the voice data of the data that receive is previously abolished.Audio treatment part divides 106 the signal that sends to be converted to analog signal and with its output.

And, in the situation that data send, send signal and be directly inputted to timing controlled part 105, and export the signal that receives from timing controlled part 105.And the radio communication device that will become communication parter of the present invention is for example corresponding to configuration and the operation of the handset of machine tool, and is identical with communicator according to the present invention.

Next, be described in transmission and reception as the wireless signal that is used in the cordless telephone of being formed by machine tool and handset according to an example application of wireless communication system of the present invention controlling.For example, in the occasion of radio communication device as the machine tool operation, machine tool is periodically exported the control data by the predetermined time slot of tdma communication frame usually.That is, control section 109 is controlled data to timing controlled part 105 in predetermined regularly output.The time slot that is used for this control data of transmission is called " control time slot " hereinafter.

Timing controlled part 105 is added to the necessary synchronizing signal of communication and for the necessary CRC sign indicating number of error detection etc. at the assigned timeslot of tdma frame, and with its output.In the cordless telephone of being formed by machine tool and handset, send the occasion of audio signal superimposed after on the control time slot, divide 106 voice data and the CRC sign indicating numbers thereof that send to be added to aforesaid data further from audio treatment part, and export this data at the assigned timeslot of tdma frame.

By being used to will to be converted to wireless signal from the sine wave of composite part 104 from the data of timing controlled part 105 outputs sending part 102, and from antenna 101 outputs.At this moment, with respect to the sinusoidal wave frequency from composite part 104 outputs, press predefined procedure and produce frequency for the control time slot, and no matter whether voice data superimposed, in order to carry out the communication of frequency-hopping system.

In the cordless telephone as example application of the present invention, wherein communicator as shown in Figure 1 is used as the handset for communication, so that synchronizing TDMA frame and time slot, the perhaps hop cycle of synchronising frequency hopping, described handset receives the control channel that is periodically sent by machine tool.Control section 109 control receiving unit 103, composite part 104 and timing controlled parts 105, make it receive of communication frequency for control continuously, and in the control signal that receives when handset from machine tool, control section 109 controls, make continuous reception be held, and handset receives according to the timing from the sending time slots of the control signal of machine tool, and in the identical time, its control makes receive frequency change according to the order of the frequency hopping of control time slot.On the other hand, occasion in two time slot executive communications that comprise the time slot that wherein control information is superimposed by utilization, control information and other data are (namely, voice data in the situation of voice communication) separated by the data of the overlapping time slot of the timing controlled part 105 of recipient's communicator and control information, and processed thus.

Fig. 2 shows data format.In Fig. 2, be the data format of control time slot (A), it comprises: bit synchronization part (121), frame synchronization part (122), control data division (123) and CRC (124).(B) be the data format of communication time slot, it comprises: bit synchronization part, frame synchronization part, control data division, CRC1 (125), communication data part (126) and CRC2 (127).In the situation of voice communication, voice data partly sends by utilizing communication data.And, such as sending by the control data division in the necessary control command of communication period of interrupt requests, frequency handover request etc.(C) be the data format of control time slot, wherein communication data is superimposed at the control time slot, and the control time slot comprises: bit synchronization part, frame synchronization part, control data division, CRC ₁, communication data part and CRC ₂And, in the situation of voice communication, superimposed voice data partly to send by utilizing communication data.

Fig. 3 shows time slot configuration.In Fig. 3, show the example of time slot configuration.Wherein, respectively for upstream (handset transmission) and downstream (machine tool transmission) multiplexing 4 time slots in a frame.(A) show machine tool is wherein carried out the transmission of control time slot at time slot 1 example.(B) show machine tool wherein and carry out with communicating by letter of handset via a Radio Link and the example that sends control information at time slot 1 at time slot 2, and (C) be the example that sends control information with communicating by letter of handset and at time slot 1 via two Radio Links execution at time slot 2 and time slot 4 of machine tool wherein.And, (D) show machine tool wherein in time slot 4 overlapped data and further utilize time slot 2 to carry out the example that sends control information at time slot 4 with communicating by letter of handset via two Radio Links.

In the example shown in Fig. 3, the order of pressing (A) → (B) → (C) → (D) shows and wherein begins to communicate by letter, set up first Radio Link between machine tool and handset, set up second Radio Link and will control the process that time slot moves on to the time slot of second Radio Link.

[table 1]

(table 1) shows the example of the frequency hopping of frequency-hopping system.In the present example, use working frequency from the frequency of 8 types of f1 to f8 by order, and frequency f 9 and two types of preparations of f10 are for channel switch.In table 1, show when the frequency that when 4 time slots are carried out time division multiplexing, is used in each time slot in vertical row, show in the frequency shown in the same number of frames in horizontal line.That is, when frame number was 1, f1 was used to time slot 1, and f3 is used to time slot 2, and f5 is used to time slot 3, and f7 is used to time slot 4.Similarly, when frame number was 2, f2 was used to time slot 1, and f4 is used to time slot 2, and f6 is used to time slot 3, and f8 is used to time slot 4.In addition, when frame number surpassed 8, numbering turned back to 1, and described frequency is determined.

Send the occasion of aforesaid control information at machine tool at time slot 1, switch the frequency f 1 of frame separately, f2 ... in time, send control information.By continuous reception frequency (any one frequency among the f1 to f8), when the control information of machine tool sent with same frequency, handset received the control information of machine tool, and handset is set up frequency hopping thus becomes possibility synchronously.At this moment, the part as control information enables slot synchronization by notice, and machine tool time slot thus sends.

At the time slot that is different from for the time slot that sends the control time slot, machine tool always receives data at the receive frequency of response frequency as shown in table 1, in order to send from the handset reception.That is, in the situation that transmits control channel by time slot 1, in it was numbered 1 frame, machine tool received data at time slot 2 medium frequency f3, time slot 3 medium frequency f5, time slot 4 medium frequency f7.Send the request of subsequently Radio Link of describing being set up to machine tool and set up the occasion of Radio Link in handset, when receiving the control time slot and set up time slot and frequency synchronous, in response in the frequency that is different from the time slot reception machine tool of control time slot and carry out transmission.

In addition, in the occasion of utilizing the wireless status variation of this frequency in using when machine tool and time during handset is all being communicated by letter, switch corresponding frequency by the frequency that keeps.At this moment, with before switching and frequency afterwards be notified to communication parter, after obtaining response, carry out switching.

And, in the control time slot, even the occasion of having only control information to send and even being used for communication data by a plurality of Radio Link executive communications superimposed occasion except control information, do not carry out aforesaid frequency switching (channel switch) yet.

Fig. 4 shows the sequence that is used to communication to set up two Radio Links, when its control sets up a plurality of Radio Links during executive communication between machine tool and handset, make and set up a plurality of Radio Links being different from the time slot of controlling time slot, and the control time slot is moved to the time slot of the Radio Link of setting up.

Handset is made request for building link being different from the time slot of controlling time slot, and by receiving the link assignment from machine tool, set up first Radio Link, wherein begin for the calling control sequence of communicating by letter at first Radio Link, that is, the communication in the example shown in Fig. 4 begins request and begins response with communicating by letter.

Simultaneously, the same with the situation of setting up first Radio Link in the time slot in being different from the time slot of controlling time slot and being used in first Radio Link, handset is made request for building link, and receives the link assignment from machine tool, sets up second Radio Link thus.At this moment, when message capacity keeps a little as shown in Figure 4, second Radio Link is necessary overlapping occasion on the control time slot, and the channel switch that is used in the frequency in second Radio Link is under an embargo.This is because second Radio Link is superimposed on the control time slot.

As shown in Figure 4, the occasion of accepting state variation in second Radio Link of sub-unit terminal, handset is made channel switch request by the Radio Link that its communications status worsens.Yet, to attempt control information is moved on to respective links or the occasion after machine tool moves it at machine tool, machine tool disapproves channel switch with respect to the time slot of wherein corresponding control information plan superimposed (override) (or superimposed).For the request of the channel switch that provides from handset, return the response that disapproves channel switch.Therefore, in corresponding Radio Link, frequency alternately is under an embargo.

Be moved to thitherto the occasion that is used for the time slot of communication at the control time slot, after second Radio Link was established, machine tool began to move on to operation for the time slot of second Radio Link for controlling time slot.At this moment, because the control time slot that other handsets become and can not receive machine tool, so search for the control time slot of machine tool again, and carry out the synchronous again of control time slot.And, at this moment, all carry out the transmission of control information in machine tool control time slot in front and this control time slot, wherein for the regular time section, new address is re-used.Therefore, other handsets of waiting for machine tool temporarily can be by the control time slot of front and the time slot receiving control information of new address, and wherein, handset can easily be followed the movement at the control time slot of machine tool end.During the section, in the control time slot in front, the control time slot is moved, and the time slot of new address is announced at this moment.Other handsets that receiving control channel can become the system that can move the control time slot in response to this announcement.

And after this, in second Radio Link, it is possible only stopping to send or send and receive in upstream and downstream arbitrary.That is to say, in second Radio Link, set up second link in order to ensure Synchronization Control or by beginning identical control with first link, carry out a two-way communication.Yet after setting up link, only transmission or transmission and reception are stopped in of upstream and downstream.At this moment, by determining after setting up Radio Link, to stop in them in advance, there is not such situation, wherein receives wrong process by useless beginning such as for example channel switch and time slot being used for of switching, even receive and to be performed being stopped termination.

Fig. 5 sets up the order of two Radio Links and sets up after first Radio Link when showing in machine tool by executive communication, be used for overlapping onto by overlapped data at the control time slot example of sequence of the signal of communication of handset.Handset is at first made request for building link in being different from the time slot of controlling time slot, and receives link assignment from machine tool, and sets up first Radio Link.

The time slot of first Radio Link is set up in utilization, and machine tool sends a message to handset, and its notification data is overlapping in the control time slot.When receiving notice, handset begins to control the reception of time slot and begin in the reception of controlling the overlapping data (voice data or view data) of time slot.In this case, may only in two time slots, set up Radio Link in downstream (machine tool → handset), and in upstream (handset → machine tool), in statu quo keep a Radio Link.For example, if send voice data by two time slots respectively at downstream direction (machine tool → handset), and send voice data in updrift side (handset → machine tool) by a time slot, then with respect to the audio frequency from the machine tool to the handset, error probability can be lowered, and can improve audio quality, and further may power saving when from the handset to the machine tool, sending data.And, begin to send in updrift side subsequently, wherein can set up two Radio Links at the upstream and downstream both direction.

Specifically, the machine tool of the power drives that wireless communication system can be got by commerce and be wirelessly connected to machine tool and the situation formed by battery-driven handset in, with respect to the transmission from the machine tool to the handset, identical voice data is sent by two time slots respectively, and with respect to the transmission from the handset to the machine tool, send voice data by a time slot, the battery consumption of handset can be saved, and wherein the call duration time section can be extended.

After Fig. 6 shows the order of setting up two Radio Links by executive communication the time set up first Radio Link in handset, sending time slots by handset sends the example of the sequence of signal of communication, and the sending time slots correspondence of this handset is used to from the time slot of machine tool receiving control information.Handset is at first made request for building link by being different from the time slot of controlling time slot, and receives link assignment from machine tool, is established at this first Radio Link.

The time slot of first Radio Link is set up in utilization, the machine tool notification message, and it is overlapping at the control time slot to be used for the permission communication data.Handset receives this notice, and begins to send the sending time slots of the control time slot of the corresponding machine tool of the sending time slots of this handset by the sending time slots of handset.Then, machine tool begins to receive the data of second link by the receiving slot corresponding to the control time slot.In this case, only set up Radio Link in updrift side with two time slots, and may in statu quo keep a Radio Link at downstream direction.And communication data is continuously overlapping at the control time slot, and begins to send at downstream direction, wherein might set up two Radio Links at the upstream and downstream both direction.

Then, the operation that is used for permitting or disapproving at the control time slot a plurality of Radio Links is described.The configuration of described device and as shown in Figure 1 similar.Radio communication device according to the present invention is operating as machine tool, and is used for the data of control by the output of determined slot cycle ground in the tdma communication frame.That is to say that in predetermined timing, control section 109 will be controlled data and output to timing controlled part 105.Timing controlled partly is added to the necessary synchronizing signal of communication and is 124 yards of necessary CRC of error detection, and in the timing output data of the appointment of tdma frame.

At this moment, whether relevant corresponding machine tool permits the information of a plurality of Radio Links to be placed on from the part of the control information of machine tool transmission.

In addition, no matter when this information sends control information, all can be sent out, perhaps can be sent out once in each time period of determining, perhaps the state of machine tool be changed to from License Status the state of disapproving or never License Status change to the situation of License Status and can send at least one times.In addition, at this moment, in and the situation that sends superimposed at the control time slot in audio signal, divide 106 voice data and the CRC thereof that send to be added to further the aforesaid data for 124 yards from audio treatment part, and regularly be output in the appointment of tdma frame.By being used to will to be converted to wireless signal from the sine wave of composite part 104 from the data that timing controlled is partly exported sending part 102, and from antenna 101 outputs.

And, being operating as the occasion of handset at radio communication device according to the present invention, handset receiving cycle ground is necessary by the control channel that machine tool sends.By receiving the control channel that is periodically sent by machine tool, handset may be guaranteed the synchronous of tdma frame and time slot, and the hop cycle of frequency hopping is synchronous.And, because handset receives control channel, whether permit a plurality of Radio Links so might know machine tool for single communication.

Make it continuously receive for the communication frequency of control one as control section 109 control receiving units 103, composite part 104 and the timing controlled part 105 of the radio communication device of handset operation.When receiving control signal when handset from machine tool, handset is carried out control, makes continuously to receive the reception that is changed in response to from the timing of the sending time slots of the control signal of machine tool.Simultaneously, also control and change receive frequency one by one in response to the frequency hop sequence handset of control time slot.

Therefore, comprise in control information whether relevant a plurality of Radio Links are licensed for the occasion of the information of single communication, the handset that receives control signal from machine tool is stored in described information the control section 109, and when executive communication, handset determines based on institute's canned data whether a plurality of Radio Links are established.And, by comprising the occasion of two time slot executive communications controlling time slot, in order to handle, will be control information and other data by the division of signal of control time slot reception, that is to say, be separated into the voice data in the voice communication situation.As mentioned above, if the free time (vacancy) of the Radio Resource of machine tool (time slot) greater than the threshold value that is used for from the request of the permission multilink of handset, then machine tool is permitted the multilink of handset.

Next, the operation that is used for permitting or disapproving in communication period a plurality of Radio Links is described.Operation when Fig. 7 shows and sends to machine tool from handset, and show the example of the situation of a plurality of Radio Links of permission.When transmit operation when handset is carried out, handset is sent the request for link assignment, and obtains link assignment from machine tool, wherein first bidirectional wireless link is established.Handset is continuously asked the communication beginning, and machine tool receives communication and makes the ringer sounding when beginning to ask accordingly.And machine tool begins to call out.Accordingly, machine tool returns to communicate by letter to handset and begins to receive.

At this, handset is made for the request of permission multilink so that whether inquiry can set up a plurality of Radio Links.If the free time of the Radio Resource of machine tool, then machine tool returned for the response of permitting multilink to handset with respect to the request that is used for the permission multilink greater than being used for threshold value.When the user responds, machine tool direction handset side returns the response notice, and opens mutual audio path, the beginning voice communication.Arrive the individual of handset

Subsequently, handset is sent request for building link by utilizing the time slot that is not used to first Radio Link, in order to set up second Radio Link, and receiving slot distributes, wherein second Radio Link is established, and handset begins to send and received audio signal by two Radio Links.So in case voice communication is begun by a Radio Link, handset just further begins be used to the process of setting up second Radio Link in its way.

In present example, although after the beginning voice communication, set up second Radio Link, be used for after handset receives the multilink notification of permit, beginning not waiting for that be used to setting up second Radio Link method of operating of notifying from the response of machine tool is possible.In the occasion that receives the multilink notification of permit, when the timing that handset begins second Radio Link can be any, up to described sign off.

In addition, machine tool with respect to the multilink license request owing to machine tool in its Radio Resource without any free time or machine tool without any the such reason of multilink feature, and disapproving the occasion of a plurality of Radio Links, machine tool returns be used to the response that disapproves multilink and replaces response for the permission multilink.And similarly, in the not licensed occasion of any multilink, the method for not returning any multilink permission response for disapproving a plurality of Radio Links at sub-unit terminal is possible.In this case, when guaranteeing that idle and a plurality of Radio Links in the Radio Resource at machine tool can be licensed, machine tool returns response for the permission multilink to handset, and handset to have (from the time being) from the described time be possible with regard to moving on to be used to the method for operating of setting up second Radio Link.

Fig. 8 shows the sequence between machine tool and handset, and whether it is licensed at registration operating period notice Radio Link, and more particularly, it shows the example in the licensed occasion of a plurality of Radio Links.When connecting power supply in handset side or when the user moves on to another base station area in public system, begin the registration operation, registration operation beginning.When registration operation beginning, handset is sent the request for link assignment, and receives link assignment from machine tool, and wherein, Radio Link is established.Subsequently, when the handset request registration begins, and machine tool is when receiving request for the registration beginning, and the machine tool storage is included in the code that is used for the identification handset of for example handset ID of registration in beginning to ask, and returns registration and receive and give handset.At this, whether handset is made the multilink request can set up a plurality of Radio Links with inquiry.

Permit the occasion of a plurality of Radio Links, machine tool to return for the response of permission multilink at machine tool with respect to the multilink license request and give handset, and in the forbidden occasion of a plurality of Radio Links, machine tool returns be used to the response that disapproves multilink.Handset storing authorization or disapprove state, the content of abideing by subsequently and storing when machine tool is communicated by letter accordingly, whether the operation that is identified for setting up a plurality of Radio Links is performed.In addition, although this example is that machine tool is based on whether permitting a plurality of Radio Links from the multilink request of handset with by machine tool for its response notice of making, but give handset from the permission of machine tool or objectionable state and be possible without any a kind of like this method from the request of handset as a part of information notice that operating period between machine tool and handset, exchanges in registration, as in the part notice of the registration reception information method from the permission of machine tool or objectionable state.

Next, the operation that is used for permitting or disapproving by user's operation a plurality of Radio Links is described.Be similar to as shown in Figure 1 radio communication device according to the radio communication device of this description.Switch permission or objectionable occasion of a plurality of Radio Links the user in Fig. 1, the user is in operation part 107 import admissions or objectionable order.The order that the control section storage is imported, and in communication subsequently, control section is abideed by institute's canned data, and namely permission or the objectionable state of being determined by the user determines whether to set up a plurality of Radio Links.And machine tool or handset can have present feature.

In the occasion that is disapproved state by the machine tool setting, with the communication of all handsets of communicating by letter with machine tool in, make described the setting effectively, wherein disapprove communication by a plurality of Radio Links possibility that becomes.And, objectionable occasion is being set, only in the communication of the handset of correspondence no thoroughfare a plurality of Radio Links by handset.When the battery capacity when corresponding handset is reduced, attempt by temporarily forbidding coming via the communication of a plurality of Radio Links the occasion of the consumption of conserve batteries, and when the wireless status when machine tool is different from the state of handset according to installation environment, for example become obstacle in the radio communication between machine tool and handset, the device of its wireless status difference is installed near the occasion of handset, by only permitting corresponding handset and disapprove other handset, this can be used for attempting to effective utilization of Radio Resource and be increased in machine tool and handset between the time communication the purpose of quantity.

In addition, with respect to permission being set or disapproving, a kind of like this method is possible, utilizes this method, and the transmission from the machine tool to the handset or the transmission from the handset to the machine tool can be arranged independently.For example, in the occasion that disapproves the transmission from the handset to the machine tool, under situation about setting up after first Radio Link, second Radio Link is only enabled the transmission from machine tool at second Radio Link.Yet, even for example be under an embargo from the request that is used for setting up Radio Link of handset, be that the necessary transmission of setting up of second Radio Link also is performed, and after setting up two-way Radio Link, can stop the transmission from the handset to the machine tool.Therefore, with respect to permission or objectionable setting, by transmission from the machine tool to the handset or the transmission from the handset to the machine tool are set independently, have only upstream communication licensed, for example be installed near the machine tool occasion becoming device at the obstacle of the radio communication between machine tool and the handset, and Radio Resource is used effectively, and can improve the quality of reception of machine tool thus.By only permitting downstream communication, the power consumption that suppresses battery in by battery-driven handset becomes possibility.

Although after the beginning voice communication, set up second Radio Link, but a kind of like this method is possible, it begins be used to the operation of setting up second Radio Link after machine tool receives the multilink notification of permit in handset, and do not wait for any response notice, and in the occasion that receives the multilink notification of permit, the timing that handset begins second Radio Link can be any time, up to sign off.

In addition, owing to following reason disapproves the occasion of a plurality of Radio Links, machine tool returns multilink and disapproves response at machine tool, rather than multilink permission response, this reason is, with respect to the multilink request, it is idle or without any the multilink feature that machine tool is not guaranteed in Radio Resource.And, in objectionable each situation, there is a kind of method, it is not by returning a plurality of Radio Links that the multilink permission response disapproves handset.In this case, when guaranteeing idle in the Radio Resource at machine tool and a plurality of Radio Links can be licensed the time, machine tool returns the multilink permission response and gives handset.From this constantly, a kind of like this method becomes possibility, utilizes this method, and handset moves on to the operation of setting up second Radio Link.

Further describe for another example of operation of permitting or disapproving a plurality of Radio Links.In radio communication device, be performed such as data communication and the voice data of the transmission of telephone directory.In the situation of data communication, temporary transient wireless interruption is compared with voice communication and is not become unfavorable to the user.That is, in the situation of data communication, even because radio interrupts taking place, the data of losing also can be retransmitted by retransmitting control, so may guarantee the transmission of all data.Such communication can be performed under the situation that does not have some radio of user notification to interrupt.

So, possessing in the radio communication device that voice communication feature and data communication feature are arranged according to of the present invention, can be with respect to whether licensed switching voice communication and the data communication of a plurality of Radio Links.For example, only permit voice communication disapproving data communication, perhaps permit or disapprove the occasion that is switched based on the free time in the Radio Resource, it is possible can making a kind of like this method, by this method, it is littler that it is controlled the threshold value of objectionable threshold ratio in the data communication situation that makes in the voice communication situation, and a plurality of Radio Link is easily licensed further in the voice communication situation.Certainly, a kind of like this method also is possible, by this method, can determine by aforesaid operation by the user with respect to permission and objectionable switching of voice communication and data communication.

As mentioned above, according to present embodiment, in the occasion that is used for setting up a plurality of Radio Links and selects the method for the signal of its accepting state good wireless link to be performed, in comprising the optional time slot of controlling time slot, set up a plurality of Radio Links and the executive communication possibility that becomes, can bring the effect of effectively utilizing Radio Resource at this.

And, by permitting in response to Radio Resource in use or disapproving a plurality of Radio Links, can bring the effect of effectively utilizing Radio Resource.

And, whether be moved to time slot in the service in a plurality of Radio Links in response in use Radio Resource by determining control channel, also can bring the effect of effectively utilizing Radio Resource.

In addition, because user's operation is set up a plurality of Radio Links and is determined whether the signal of its accepting state good wireless link is selected, can bring the effect of effectively utilizing Radio Resource and the effect that increases user convenience, thus, the user can determine to obey the control of environment for use and situation by his or her selection.

And, whether described communication is voice communication because abide by, set up a plurality of Radio Links, and determine whether to select the signal of its accepting state good wireless link, so described Radio Resource can be assigned to the voice communication with priority, at this, can bring the effect of effectively utilizing Radio Resource.

In addition, owing in the registration operation, set up a plurality of Radio Links, and determine whether to select the signal of its accepting state good wireless link, so during standby or communication period notice permission or disapprove and become unnecessary, wherein can bring such effect, can convenient in the operation of radio communication device, take thus during the stand-by time of nearly all time control and in the control of communication period.

And, owing in the registration operation, set up a plurality of Radio Links, and determine whether to select the signal of its accepting state good wireless link, so, may be as in the public system, connecting the occasion of a plurality of radio communication devices, enable the permission of each radio communication device and disapprove, wherein, if can satisfy radio communication device and those ungratified radio communication devices coexistences of the communication by a plurality of Radio Links, it is just enough then only to disapprove a plurality of Radio Links in the registration of subsequently radio communication device.Therefore, can bring such effect, control that thus can convenient radio communication device.

And, because the connection of a plurality of Radio Links can be under an embargo by user's operation, so if there is the probability of another system of obstruction, then use a plurality of Radio Links to become impossible by user's operation via single communication.If the obstacle of other devices of baneful influence takes place, then can bring the effect that suppresses or reduce its influence.

(embodiment 2)

Next, such example is described, in this example, nearby exist or the wireless device approximating occasion that is mobile communications device and each system owing to carrying out physical motion in the FHSS communicator of time slot diversity in the system that utilizes identical hop pattern (hopping pattern), hop pattern is changed and can prevents the sequence conflict.

Fig. 9 shows the allocation plan according to the communicator of embodiment 2.As shown in Figure 9, this communicator comprises: device 154 is used for selecting a hop pattern from a plurality of hop pattern; Time slot diversity control section 153 is for hop pattern and the communications status of two communication time slots of control; Error monitoring device 164 and 174 is used for monitoring the accepting state by the data of each communication time slot reception; Sequence conflict monitor portion 168 and 178 is for detection of the sequence conflict; Receive data selection means 152, be used for selecting its accepting state good data from the data that receive by described two time slots; Mode altering dispensing device 165 and 175 is used for sending hop pattern change request to communication parter; Response confirmation part 162 and 172 is used for respect to the response of the hop pattern change request affirmation that sends from communication parter; Mode altering monitor portion 167 and 177 is used for monitoring the hop pattern change request from communication parter; Send control section 161 and 171, be responsible for deal with data and send; Receive control section 163 and 173, be responsible for deal with data and receive; And wireless portion 151, be responsible for handling radio communication.

Description is by the operation of the FHSS communicator of constructing like that as mentioned above.Figure 10 show for detection of the sequence conflict and in time slot diversity communication period to preventing its process.When reception control section 163 received data via wireless portion 151 from communication parter, error monitoring device 164 checked whether there is any reception mistake (Figure 20: 202).If receive normally, then removing continuous error counter (EC_A) is " 0 " (Figure 10: 209).If receive wrong the generation, then error counter (EC_A) is increased (Figure 10: 203) continuously.

Sequence conflict monitor portion 168 checks whether continuous error counter (EC_A) surpasses threshold value (Figure 10: 204), if wherein it is greater than threshold value, judge that then the sequence conflict takes place.In this case, time slot diversity control section 153 is gathered new hop pattern from hop pattern choice device 154, and sends it to mode altering dispensing device 175 at another time slot control part branch.Mode altering dispensing device 175 is placed on the control field that sends data format with mode altering request identifier and new hop pattern, and sends it to communication parter (Figure 10: 205) via sending control section 171 and wireless portion 151.

When mode altering monitor portion 177 detects the reception of mode altering request, FHSS communicator side as communication parter changes request responding via sending control section 171 and wireless portion 151 sending modes, and upgrades hop pattern table 166 in the new hop pattern that is sending to time slot diversity control section 153.

FHSS communicator side in the change of request hop pattern, be right after when receiving described request after sending the change request when receiving control section 173, error monitoring device 174 checks whether receive the wrong (Figure 10: 206) of generation, wherein, because if the wrong generation of reception just cannot be confirmed the mode altering request responding from communication parter, so mode altering dispensing device 175 sends hop pattern change request (Figure 10: 205) again via sending control section 171 and wireless portion 151.When receiving just often, response confirmation part 172 checks the control field (Figure 10: 207), wherein, be identified if hop pattern changes request responding that receives data, then it is notified to time slot diversity control section 153, and hop pattern table 167 is updated to new hop pattern (Figure 10: 208).If described response is not identified, then mode altering dispensing device 175 sends hop pattern change request to communication parter (Figure 10: 205) again via sending control section 171 and wireless portion 151.

Based on aforesaid structure, if the occasion that nearby exists at another wireless device with identical timing and hop pattern executive communication, be used for the message of hop pattern of change conflict time slot by always via two time slot executive communications and utilize another communication time slot to send and receive, and transmit and receive data and be brought into conflict each other continuously, the hop pattern of two FHSS communicators that then communicate with one another can be modified simultaneously, and can bring such effect, can prevent that thus the sequence conflict from taking place.

(embodiment 3)

Next, describe another example, in this example, near the occasion the system that utilizes identical hop pattern is present in can prevent the sequence conflict.

Figure 11 is the allocation plan that the FHSS communicator of embodiment 3 is shown.As shown in figure 11, in the structure of embodiment 3, FHSS communicator inside is equipped with: diversity stops dispensing device 315 and 325, is used for the sending time slots diversity and stops request to communication parter; And diversity stops monitor portion 317 and 327, is used for monitoring that the time slot diversity from communication parter stops request, and wherein hop pattern choice device, mode altering dispensing device and mode altering monitor portion are by from wherein getting rid of.

Provide the description of the operation of the FHSS communicator of constructing like that as mentioned above.Figure 12 shows for the process that is used for preventing the sequence conflict when detecting the sequence conflict at a communication time slot.Detect the reception mistake continuously in sequence conflict monitor portion 328, and judge that (Figure 12: 410), time slot diversity control section 303 sent it to diversity at another time slot control part branch and stops to send part 315 when the sequence conflict took place.Diversity stops dispensing device 315 and stops to ask identifier in the control field placement time slot diversity that sends data format, and sends it to communication parter (Figure 12: 402) via sending control section 311 and wireless portion 301.

If stopping monitor portion 317, diversity detects the reception that the time slot diversity stops to ask, then the FHSS communicator side as communication parter stops request responding via sending control section 311 and wireless portion 301 sending time slots diversity, simultaneously, time slot diversity control section 303 is carried out the process of the Radio Link that is used for interruption conflict time slot.

In the FHSS communicator side that request time slot diversity stops, receive when stopping to ask by reception control section 313 when being right after after transmission stops request, whether error monitoring device 314 checks to exist and receives wrong (Figure 12: 403), if wherein owing to receive wrong the generation, then the time slot diversity of communication parter stops request responding and cannot be identified, thus diversity stop dispensing device 315 via send control section 311 and wireless portion 301 again the sending time slots diversity stop request to communication parter (Figure 12: 402).If receive normally, then response confirmation part 312 checks the control field (Figure 12: 404) that receives data.Then, response is identified if diversity stops request, then it is sent to time slot diversity control section 303, wherein carry out process (Figure 12: 405) of the Radio Link that is used for interruption conflict time slot, if and be not identified, then diversity stop dispensing device 315 via send control section 311 and wireless portion 301 again the sending time slots diversity stop request to communication parter (Figure 12: 402).

Therefore, if the Radio Link of the conflict time slot of two FHSS communicators that only communicate with one another is interrupted simultaneously, then time slot diversity control section 303 temporarily stops to receive the process of data selection means 302, and described communications status is revised in the communication of connecting single time slot like that.Simultaneously, be used for being performed (Figure 12: 406) with process that the empty slot that the time slot that conflicts separates is set up Radio Link.When being done for the process of setting up Radio Link, time slot diversity control section 303 recovers to receive the process of data selection means 302, and restarts time slot diversity (Figure 12: 407).

Utilizability on the industry

Based on aforesaid structure, since the conflict time slot not only simultaneously as the communication time slot of FHSS communication system but also as such former of control time slot thereby cannot easily change the occasion of hop pattern, by utilizing another communication time slot in two FHSS communicators that communicate with one another, to carry out simultaneously to be used for the process of the Radio Link that interrupts the conflict time slot.After this, set up Radio Link by utilizing with the empty slot that the time slot that conflicts separates, and restart the time slot diversity, can bring such effect, can prevent the sequence conflict thus.

Claims (11)

1. radio communication device comprises:

Receiving-member is used for receiving data at first time slot and second time slot from communication parter;

The sequence conflict monitors parts, is used for detecting the sequence conflict in first time slot when the count value of continuous reception mistake surpasses threshold value;

The request transmit block, be used for when described sequence conflict monitors that parts detect the sequence conflict of first time slot, by mode altering request identifier and new frequency-hopping mode are placed in the control field that sends data format, send the hopping pattern change request of first time slot to communication parter at second time slot.

2. radio communication device as claimed in claim 1 also comprises data unit, be used at second time slot data being sent to communication parter, and

Wherein said request transmit block is sending hopping pattern change request by described data unit in the data that second time slot sends by mode altering request identifier and new frequency-hopping mode are placed in the control field that sends data format.

3. radio communication device as claimed in claim 1, wherein said request transmit block sends frequency-hopping mode with described hopping pattern change request.

4. radio communication device as claimed in claim 3 also comprises mode selection part, is used for selecting described frequency-hopping mode from a plurality of frequency-hopping modes.

5. radio communication device as claimed in claim 1 also comprises the response confirmation parts, be used for to confirm from described communication parter, to described hopping pattern change request responding.

6. radio communication device as claimed in claim 5 also comprises control assembly, is used for when described response confirmation parts are confirmed response from described communication parter the described frequency-hopping mode in the renewal frequency-hopping mode table.

7. radio communication device as claimed in claim 1 also comprises the error monitoring parts, be used for to check whether to have any reception mistake at first time slot, and when in first time slot, having any reception mistake, increase continuous error counter, and

Wherein when continuous error counter surpassed described threshold value, described sequence conflict monitored that parts detect the sequence conflict in first time slot.

8. radio communication device comprises:

Receiving-member is used for receiving data at first time slot and second time slot from communication parter;

The sequence conflict monitors parts, for detection of the sequence conflict in first time slot;

The request transmit block, be used for when described sequence conflict monitors that parts detect the sequence conflict of first time slot, by the time slot diversity being stopped to ask identifier to be placed in the control field that sends data format, stop request at second time slot to communication parter sending time slots diversity.

9. radio communication device as claimed in claim 8 also comprises data unit, be used at second time slot data being sent to communication parter, and

Wherein said request transmit block is stopping request by the time slot diversity being stopped to ask identifier to be placed in the control field that sends data format by this data unit sending time slots diversity on the data that second time slot sends.

10. radio communication device as claimed in claim 8 also comprises the response confirmation parts, be used for to confirm from communication parter, described time slot diversity is stopped request responding.

11. radio communication device as claimed in claim 10 also comprises control assembly, is used for interrupting during from the response of described communication parter when described response confirmation parts affirmation the link of first time slot.

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