CN101588202A - 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 wireless communication system that is used to utilize wireless signal to realize 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.

Preventing when realizing radio communication becomes 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 to produce mistake that has wherein adopted so-called channel switch method owing to radio interference.In the channel switch system, the local channel that can be utilized to communicate by letter becomes the standby channel that is used to substitute, 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, the channel that is used to communicate by letter (frequency) number 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 being set 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, send the signal that audio signal obtained that will send by a plurality of time slots in a frame by digital conversion, and from receive data, select its condition of acceptance good data the recipient, and reconstructed audio signal in view of the above at a plurality of receiving slots of a frame.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 (time period of being divided in a frame becomes a time slot) in frame of a plurality of frequency shifts in utilizing time-diviional radiocommunication system 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 of the communicator of the interference that is used for preventing channel switch, because, in utilizing the tdma communication of frequency-hopping system, owing to be difficult to replace channel 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 to control in response to the condition of acceptance that receives partners with respect to all of the broadcast singal that is used to control.Therefore, even because the occasion that appears on the communication time slot that the audio signal that is used to serve is superimposed upon the broadcast singal that is used to control is difficult to also prevent that wireless quality from worsening, so the communication time slot that is used to 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 to select 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, promptly 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 deterioration at wireless quality at the communication quality of communication beginning.

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 in the method that is used for setting up a plurality of Radio Links and being chosen in the signal of its accepting state good wireless link, set up a plurality of Radio Links at the optional time slot that comprises the time slot that is used for controlling, 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 to set 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 being set up, its first aspect can send the time slot that is used for controlling by utilization 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 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 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 a plurality of Radio Link is set up in the communication that is used between machine tool and handset; 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 and be used to set up second and the process of the Radio Link of coming in afterwards, and bring the effect that to simplify the circuit arrangement 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 to 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 now by being different from the Radio Link that the time slot of controlling time slot is used to communicate by letter, 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 in the described free time when enough, 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 to send 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 to receive 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, so that determine is to set up a plurality of Radio Links or set up a Radio Link for communication for communication when executive communication, 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,, carry out a kind of like this operation in response to the licensed occasion of a plurality of Radio Links of advise fate, 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 by two handsets to machine tool, 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 being notified in the operation by machine tool in the handset storage.In the registration of aforesaid register device operation, the relevant a plurality of Radio Links of machine tool notice handset are licensed or not licensed, and handset with described information stores in 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 so that set up a plurality of Radio Links, and if not licensed, then operation is so that 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 to import user's instruction, and with its storage, and this device is fabricated the instruction exercise notice that makes according to the user, 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, be used for control of communication information and the superimposed time slot of signal between machine tool and handset from removing the target of channel switch, 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 to send 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 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 at other time slot.After this, by setting up Radio Link and restart the time slot diversity, may carry out diversity communication continuously without any conflict at the idle time slot that separates.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 of first time slot; The request transmit block is used for sending the hopping pattern change request of first time slot to communication parter at second time slot when described sequence conflict monitors that parts detect the sequence conflict of first 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, is used for detecting the sequence conflict of first time slot; The request transmit block is used for stopping request at second time slot to communication parter sending time slots diversity when described sequence conflict monitors that parts detect the sequence conflict of first time slot.

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 used for setting up for communication the sequence chart (sequence diagram) of two Radio Links;

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

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

Fig. 8 is used in the permission of period of registration notice Radio Link or the sequence chart between objectionable machine tool and the handset;

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

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

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

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

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

Embodiment

(embodiment 1)

Fig. 1 illustrates the block diagram of composition according to 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 to transmit and receive wireless signal; Send part 102, being used to change the transmission signal of being imported is wireless signal; Receiving unit 103 is used to the wireless signal of decoding and being received; Composite part 104 is used to produce the wireless signal of frequency-hopping system and is used to be produced as the sine wave of the necessary definite frequency of decoding; And timing controlled part 105, be used to produce the data configuration timing that is used for time-multiplexed time slot and frame.

Timing controlled part 105 produces the timing of the frame of dividing according to the preset time section and the timing of pressing the time slot of time division at a frame, and carries out time division multiplexing in frame timing and slot timing.

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

Next, provide description according to embodiment 1 to the operation of wireless communication system.Be converted to digital signal by 106 pairs of audio signals of being imported of Audio Processing 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 received 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 and from antenna 101 outputs from the data of timing controlled part 105 outputs.At this moment, with respect to sinusoidal wave frequency, press predefined procedure and produce frequency, so that carry out the communication of frequency-hopping system from composite part 104 outputs.

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

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 Processing part 106.By utilizing the occasion of two time slot executive communications, from selecting good reception data, and output to Audio Processing part 106 by the data that time slot received separately according to CRC 124 false judgment.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, is produced 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 received are sent to Audio Processing part 106 in order.At this moment, produce the occasion of partly 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 Processing part 106 is an analog signal and with its output with the conversion of signals that is sent.

And, in the situation that data send, send signal and be directly inputted to timing controlled part 105, and export the signal that is received from timing controlled part 105.And the radio communication device that will become communication parter of the present invention is for example corresponding to the 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 to control in the cordless telephone of forming by machine tool and handset according to an example application of wireless communication system of the present invention.For example, in the occasion of radio communication device as the machine tool operation, machine tool is periodically exported control data by the predetermined time slot of tdma communication frame usually.That is, control section 109 arrives timing controlled part 105 at the predetermined control data of regularly exporting.The time slot that is used to send this control data 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 forming by machine tool and handset, send the occasion of audio signal superimposed after on the control time slot, the voice data and the CRC sign indicating number thereof that send from Audio Processing part 106 are added to aforesaid data further, and export this data at the assigned timeslot of tdma frame.

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

In cordless telephone as example application of the present invention, wherein communicator as shown in Figure 1 is used as the handset that is used to communicate by letter, 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 the communication frequency that is used for controlling 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 (promptly, voice data in the situation of voice communication) separate 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 part (123) and CRC (124).(B) be the data format of communication time slot, it comprises: bit synchronization part, frame synchronization part, control data part, CRC ₁(125), communication data part (126) and CRC ₂(127).In the situation of voice communication, voice data partly sends by utilizing communication data.And, such as partly sending by control data of interrupt requests, frequency handoff request etc. in the necessary control command of communication period.(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 part, 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, 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 at time slot 2.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, used working frequency by order, and frequency f 9 and two types of preparations of f10 are used for channel switch from the frequency of 8 types of f1 to f8.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.

Be different from the time slot that is used for sending the time slot of controlling time slot, machine tool always receives data at the receive frequency of response frequency as shown in table 1, so that receive transmission from handset.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 correspondent 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 be 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 being controlled between machine tool and the handset executive communication, it sets up a plurality of Radio Links when, 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 being set up.

Handset is made request for building link being different from the time slot of controlling time slot, and by receiving link assignment from machine tool, set up first Radio Link, wherein on first Radio Link, begin the calling control sequence that is used to communicate by letter, 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 the occasion that thitherto has been used to the time slot of communicating by letter at the control time slot, after second Radio Link was established, machine tool began to be used for will the control time slot to move on to the operation of the time slot that is used for second Radio Link.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 once more, 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 moving 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, carry out a two-way communication in order to ensure Synchronization Control or by beginning identical control with first link.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, even receive and to be performed being stopped termination such as for example channel switch and time slot being used to of switching.

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.Receiving when notice, handset begin to control the reception of time slot and beginning the control time slot the reception of overlapping data (voice data or view data).In this case, may only in two time slots, set up Radio Link, and in upstream (handset → machine tool), in statu quo keep a Radio Link in downstream (machine tool → handset).For example, if send voice data by two time slots respectively at downstream direction (machine tool → handset), and send voice data by a time slot in updrift side (handset → machine tool), 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, and the machine tool notification message is used to permit communication data overlapping at the control time slot.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 with two time slots, and may in statu quo keep a Radio Link at downstream direction in updrift side.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 exports the data that are used to control by determined slot cycle ground in the tdma communication frame.That is to say that in predetermined timing, control section 109 outputs to timing controlled part 105 with control data.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 dateout 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 once.In addition, at this moment, in and the situation that sends superimposed at the control time slot in audio signal, the voice data and the CRC thereof that send from Audio Processing part 106 are added to the aforesaid data for 124 yards further, and regularly are output in the appointment of tdma frame.By being used to will to be converted to wireless signal from the data that timing controlled is partly exported sending part 102 from the sine wave of composite part 104, 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 for single communication so might know machine tool.

Make it continuously receive of the communication frequency that is used for controlling 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 handset when machine tool receives control signal, handset is carried out control, makes continuously to receive to be changed in response to the reception 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 with described information stores 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,, will be control information and other data by the division of signal of control time slot reception in order to handle, 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.Fig. 7 shows the operation when handset sends to machine tool, and shows 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 that is used 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 in view of the above.And machine tool begins to call out.In view of the above, machine tool returns to communicate by letter to handset and begins to receive.

At this, handset is made and is used to permit the request of 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 permitted the request of multilink to return the response that is used to permit multilink to handset with respect to being used to 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, so that 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 to be used to set up the process of second Radio Link in its way.

In present example, although set up second Radio Link after the voice communication, be used for after handset reception multilink notification of permit, beginning to be used to set up second Radio Link and do not wait for that the method for operating of notifying from the response of machine tool is possible in beginning.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 the response that the response that is used to disapprove multilink replaces being used to permit multilink.And, similarly,, be used for disapproving a plurality of Radio Links and the method for not returning any multilink permission response is possible at sub-unit terminal in the not licensed occasion of any multilink.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 return be used to permit multilink response to handset, and handset to have (from the time being) from the described time be possible with regard to moving on to the method for operating that is used to set 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 beginning the registration operation in handset side's energized or when the user moves on to another base station area in public system, registration operation beginning.When registration operation beginning, handset is sent the request that is used 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 receives when being used to register the request of beginning, and the machine tool storage is included in the code that is used to discern 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 at machine tool with respect to the multilink license request and be used to permit the response of multilink to give handset, and in the forbidden occasion of a plurality of Radio Links, machine tool returns the response that is used to disapprove multilink.Handset storing authorization or disapprove state, the content of abideing by subsequently and being stored 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 of making notice, but give handset from the permission of machine tool or objectionable state and be possible as a part of information notice that operating period between machine tool and handset, exchanges in registration, as in the part notice of registration reception information the method from the permission of machine tool or objectionable state without any a kind of like this method from the request of handset.

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 promptly 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 disapproves 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 the occasion of the consumption of conserve batteries via the communication of a plurality of Radio Links, 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 to attempt 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 transmission from the machine tool to the handset or the transmission from the handset to the machine tool can be provided with 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,, 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 even for example be under an embargo from the request that is used to set up Radio Link of handset.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 to be used to set up second Radio Link in handset after machine tool receives the multilink notification of permit operation, 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.

Another example of operation that is used to permit or disapprove a plurality of Radio Links is further described.In radio communication device, be performed such as the 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 switch audio 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, its Be Controlled makes that the threshold value of objectionable threshold ratio in the data communication situation in the voice communication situation is littler, 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 to set 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 by determining control channel in response in use Radio Resource, 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, then use a plurality of Radio Links to become impossible via single communication by user's operation if there is the probability of another system of obstruction.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 used to control the hop pattern and the communications status of two communication time slots; Error monitoring device 164 and 174 is used to monitor the accepting state by the data of each communication time slot reception; Sequence conflict monitor portion 168 and 178 is used to detect 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 to send 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 to monitor 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 be used to detect the sequence conflict and in time slot diversity communication period to preventing its process.When receive control section 163 via wireless portion 151 when communication parter receives data, error monitoring device 164 checks 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 15 1 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) once more via sending control section 171 and wireless portion 151.When receiving just often, response confirmation part 172 is checked 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) once more 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, the message of hop pattern that is used to change the conflict time slot is 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 to monitor 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 the process that is used for being used to prevent 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 placement time slot diversity on the control field that sends data format and stops to ask identifier, 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 of the time slot that is used to interrupt to conflict.

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 is checked to exist and is received 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 once more the sending time slots diversity stop request to communication parter (Figure 12: 402).If receive normally, then response confirmation part 312 is checked 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 of the time slot that is used to interrupt to conflict, if and be not identified, then diversity stop dispensing device 315 via send control section 311 and wireless portion 301 once more 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 revises described communications status like that by the communication by single time slot.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 the process that is used to set up Radio Link was done, time slot diversity control section 303 recovered 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 FHSS communication system Communication time slot and as such former of control slot thereby cannot easily change the occasion of hop pattern, Be used for by utilizing another communication time slot in two FHSS communicators that communicate with one another, to carry out simultaneously Interrupt the process of the Radio Link of conflict time slot. After this, by utilizing the empty slot that separates with the time slot that conflicts Set up Radio Link, and restart the time slot diversity, can bring such effect, can prevent thus The sequence conflict.

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 of first time slot;

The request transmit block is used for sending the hopping pattern change request of first time slot to communication parter at second time slot when described sequence conflict monitors that parts detect the sequence conflict of first time slot.

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

Wherein said request transmit block is sending the hopping pattern change request by described data unit on the data that second time slot sends.

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 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 line frequency-hopping mode table.

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

Wherein when continuous error counter surpassed 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, is used for detecting the sequence conflict of first time slot;

The request transmit block is used for stopping request at second time slot to communication parter sending time slots diversity when described sequence conflict monitors that parts detect the sequence conflict of first time slot.

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

Wherein said request transmit block is stopping request 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 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 when described response confirmation parts are confirmed response from described communication parter the link of first time slot.

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