CN100391183C - Radio packet communication method and radio packet communication device - Google Patents

Radio packet communication method and radio packet communication device Download PDF

Info

Publication number
CN100391183C
CN100391183C CN 200480009706 CN200480009706A CN100391183C CN 100391183 C CN100391183 C CN 100391183C CN 200480009706 CN200480009706 CN 200480009706 CN 200480009706 A CN200480009706 A CN 200480009706A CN 100391183 C CN100391183 C CN 100391183C
Authority
CN
China
Prior art keywords
transmission
wireless
time
radio
channel
Prior art date
Application number
CN 200480009706
Other languages
Chinese (zh)
Other versions
CN1771698A (en
Inventor
井上保彦
大槻信也
永田健悟
熊谷智明
相河聪
齐藤一贤
Original Assignee
日本电信电话株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2003196301 priority Critical
Priority to JP196301/2003 priority
Priority to JP341316/2003 priority
Priority to JP341315/2003 priority
Priority to JP084302/2004 priority
Priority to JP146345/2004 priority
Application filed by 日本电信电话株式会社 filed Critical 日本电信电话株式会社
Publication of CN1771698A publication Critical patent/CN1771698A/en
Application granted granted Critical
Publication of CN100391183C publication Critical patent/CN100391183C/en

Links

Abstract

发送方无线站利用被物理载波侦听和虚拟载波侦听双方判定为空闲状态的无线信道发送无线分组,其中,所述物理载波侦听根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听判定在设定的发送禁止时间中为忙碌状态。 Both the sender radio station is determined using a physical carrier sensing and virtual carrier sensing an idle state of a wireless channel transmitting the wireless packets, wherein the physical carrier sense is determined according to the reception power of a busy or idle, the virtual carrier sensing determines that the busy status is set in a transmission prohibition time. 所述发送方无线站在用于并行发送的无线信道中对需要最长发送时间(Tmax)的无线信道以外的被动无线信道,设定在所述时间(Tmax)上相加预定时间(Ts)而得的时间(Tmax+Ts),以作为用于虚拟载波侦听的发送禁止时间。 The transmission side radio station for a radio channel parallel transmission other than passive requires the longest transmission time (Tmax) of the radio channel of the wireless channel is set in the time (Tmax) adding a predetermined time (Ts) on obtained by the time (Tmax + Ts), to prohibit a transmission time for the virtual carrier sensing. 由此,即使在由于受进行发送的无线信道的泄漏影响而成对的被动无线信道无法顺利进行接收的情况下,也能够给其他无线信道设定与最长发送时间相应的发送禁止时间,因此能够使虚拟载波侦听正常工作。 Accordingly, even when the radio channel due to the influence of leakage transmitted from passive radio channel can not be received successfully, it is possible to set a radio channel with the maximum transmission time of the transmission prohibition period corresponding to the other, so It enables virtual carrier sense to work.

Description

无线分组通信方法及无线分组通信装置 A wireless packet communication method and a wireless packet communication apparatus

技术领域 FIELD

本发明涉及利用多个无线信道分别发送无线分组的无线分组通信方法及无线分组通信装置。 The present invention relates to wireless packet communication method and a radio communication apparatus using a plurality of packet radio channels are packet radio transmission. 并且,本发明涉及利用多个无线信道并行发送多个无线分组的无线分组通信方法及无线分组通信装置。 The present invention relates to wireless packet communication method and a wireless packet communication apparatus using a plurality of wireless channels in parallel a plurality of wireless transmission of packets.

背景技术 Background technique

在传统的无线分组通信装置中,预先仅确定一个要使用的无线信道, 在进行无线分组的发送之前检测所述无线信道是否处于空闲状态(载波侦听),并仅在该无线信道处于空闲状态的情况下发送一个无线分组。 In a conventional wireless packet communication apparatus, a predetermined radio channel to be used only detects the wireless channel is idle (carrier sense) before the transmission of the radio packet, and only the wireless channel in an idle state transmitting a wireless packet in a case. 通过这种利用载波侦听的发送控制,可在多个无线站之间彼此错开时间地共用 By using such a transmission control carrier sense can be time shifted with each other between a plurality of common radio stations

一个无线信道。 A radio channel. ((1) International Standard IS0/IEC 8802-11 ANSI/IEEE Std 802.11, 1999 editon, Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks -Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications; (2) zJ、電力亍、一夕通^[言、乂7亍厶/ 広帯域移動了夕七7^7于厶(CSMA)標準規格、ARIB SDT-T71 1.0 版、(株)電波産業会、平成12年策定(低功率数据通信系统/宽带移动接入系统(CSMA)标准,ARIB STD-T71 1.0版,无线电产业协会(株),平成12年制定))。 ((1) International Standard IS0 / IEC 8802-11 ANSI / IEEE Std 802.11, 1999 editon, Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks -Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC ) and Physical Layer (PHY) specifications; (2) zJ, electricity right foot, overnight the through ^ [Yan, qe 7 right foot Si / Hiroshima Bands domain moved Xi seven 7 ^ 7 to Si (CSMA) standard specification, ARIB SDT-T71 1.0 Edition, (strain) of radio industries, the 2000 policy set (low-power data communication system / broadband mobile access system (CSMA) standard, ARIB STD-T71 version 1.0, radio industry Association (strain), the 2000 formulation)) .

当前有两种类型的具体的载波侦听方法正被使用。 Specific currently two types of carrier sensing method being used. 一种是物理载波侦听方法,该方法通过RSSI (Received Signal Strength Indicator;接收信号强 One is the physical carrier sensing method by the RSSI (Received Signal Strength Indicator; receiving signal strength

度指示器)检测无线信道的接收功率,从而检测是否有其他无线站正在使用其他无线信道发送无线分组。 Position indicator) detecting received power of a radio channel to detect whether other radio station is using the other wireless channel transmit wireless packets. 另一种是虚拟载波侦听方法,该方法利用无线分组报头中所记载的在收发该无线分组时使用的无线信道的占空时间,并只在该占空时间内将无线信道设定为忙碌状态。 Another is the virtual carrier sensing method using a wireless packet header described radio channel transceiver in the wireless packet used when the duty time, and only in the occupied space of the wireless channel is set to a long time status.

这里,参考图49所示的利用两个无线信道的无线分组通信方法的例 Here, with reference to FIG. 49 using a wireless packet communication method of the illustrated embodiment of two radio channels

子,说明上述虚拟载波侦听方法。 Promoter, the virtual carrier sensing method described above. 无线站具有被称为NAV (Network Allocation Vector;网络分配向量)的定时器,该定时器表示直到无线信道变成空闲状态为止的时间。 Having a wireless station is called NAV (Network Allocation Vector; network allocation vector) timer that indicates the time until the radio channel becomes idle until. 当NAV为"0"时,表示无线信道通过虚拟载波侦听为忙碌状态。 When the NAV is "0", it indicates a radio channel is busy by virtual carrier sensing state. 当接收了从其他无线站发送的无线分组时,读取该无线分组报头中记载的占空时间,并在该值大于NAV当前值时将该值设给NAV。 When receiving the wireless transmission from another wireless station packet, reads the duty time wireless packet header described, and the NAV value is set at a value greater than the current NAV value.

此时,若将无线分组的实际发送时间设定为无线分组报头中记载的占空时间,则利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听均表示忙碌状态,从而利用上述两种方法的载波侦听具有大致相同的功能。 At this time, if the actual transmission time of the wireless packet is set to the duty time of the wireless packet header described, the RSSI using a physical carrier sensing and virtual carrier sensing using the average NAV indicates a busy state, so that the use of the above two carrier sensing method having substantially the same function. 另一方面,若向报头中记载比无线分组的实际发送时间长的占空时间,则即使在完成无线分组的接收之后的时间,该无线信道仍处于对于虚拟载波侦听来说的忙碌状态,从而具有可禁止利用该无线信道进行发送的效果。 On the other hand, if longer than the actual transmission time according to the radio packet to the duty time in the header, even after the completion time of receiving a wireless packet, the wireless channel is still busy for the virtual carrier sensing for, thereby prohibit the use of the wireless channel having a transmission effect. 在本申请发明的说明中将此情况下的占空时间记为"发送禁止时间"。 Description of the present invention, the duty time in this case is referred to as a "transmission prohibition time." 发送无线分组的无线站仅在对于上述两种载波侦听来说均为空闲状态的情况下, 才判定无线信道处于空闲状态,并进行发送。 Packet radio transmission in a radio station are only for the case of the idle state the two carrier sensing, it was determined that the radio channel is idle, and transmitted.

在图49中,在定时tl,无线信道弁2上设有NAV,并且无线信道弁1 被判定处于空闲状态。 In FIG 49, at the timing tl, the NAV is provided with two radio channel Bian, and Bian 1 radio channel is determined in an idle state. 从而,利用无线信道#1从无线站1向无线站2发送无线分组。 Thus, with the wireless channel # 1 from the wireless packet radio transmission station 1 to the wireless station 2. 在无线站2以及其他无线站中,由于接收从无线站1发送的无线分组,从而向无线信道#1设定NAV。 In the radio station and other radio station 2, since the radio packet received from the radio transmission station 1, thereby setting the wireless channel # 1 NAV. 由此,禁止无线信道#1进行无线站2以外的其他无线站的发送,从而无线站2可以使用无线信道#1 向无线站1发送ACK分组。 Accordingly, the wireless channel # 1 is prohibited transmits radio station other than the wireless station 2 to the wireless station 2 can use the wireless channel # 1 transmits an ACK packet to the wireless station. 另一方面,在定时t2,无线站1和无线站2 接收由其他无线站使用无线信道#2发送来的无线分组,因而设定(更新)相应的NAV。 On the other hand, the timing T2, the radio station 1 and 2 receives the wireless packet radio channel used by the other radio station # 2 transmitted, thus set (updated) in the respective radio station NAV. 因此,无线信道#2受发送禁止,无线站1和无线站2 不能使用无线信道# 2进行发送。 Thus, the transmission prohibition by the wireless channel # 2, the radio station 1 and the wireless station 2 can not use the wireless channel # 2 transmits.

然而,在利用频率轴上连续布置的多个无线信道的无线分组通信中, 由于收发滤波器的特性和放大器的非线性特性,可以预见到在某一无线信道中发送的信号会向相邻的无线信道泄漏。 However, the radio packet communication using a plurality of wireless channels in a frequency axis in a continuous arrangement, since the nonlinear characteristics of the amplifier characteristics and the transceive filter can be foreseen in a signal transmitted to an adjacent radio channel will radio channel leakage. 当发生了这种泄漏的相邻无线信道中有接收信号时,由于泄漏功率和接收信号功率之差,有时无法正确接收接收信号。 When such a leak occurs in an adjacent radio channel with a receiving signal, since the difference between the leakage power and the received signal power, a received signal may not be received correctly. 通常,由于从邻接的无线信道进行发送时泄漏的功率远大 Typically, due to the radio channel transmitted from the adjacent power leakage lofty

于从离得很远的无线站发送的无线分组的接收功率,所以无法进行该无线分组的接收。 To receiving power of the radio packet transmitted from a wireless station far apart, so the packet can not be received by the radio. 当无法接收该无线分组时,就会发生图50所示的故障。 When not receiving the wireless packet, the fault 50 occurs as shown in FIG.

假设无线站1在定时tl使用空闲状态的无线信道#1发送无线分组的过程中,根据在定时t2由其他无线站使用无线信道#2发来的无线分组, It assumed that the wireless channel # 1 radio station during packet transmission using the radio idle state 1 at the timing tl in accordance with the other radio station using timing t2 packet radio wireless channel # 2 is sent,

预定向NAV设定比其发送时间长的发送禁止时间。 Setting the predetermined time longer than the transmission time of the transmission prohibition NAV. 此时,若在无线站1 从无线信道#1向无线信道井2发生泄漏,则无法接收无线信道弁2的无线分组,并无法进行NAV设定(更新)。 At this time, if a leak occurs the wireless channel # 1 to the radio channel from the well 2, the radio station can not receive radio packet radio channel Bian 2, and can not be set NAV (updated). 因此,在无线信道#2中不能正常进行原来的虚拟载波侦听,从而在下一个定时t3,无线信道#2被判定为空闲状态。 Accordingly, the wireless channel # 2 is not normally performed in the original virtual carrier sense, so that the next timing T3, the wireless channel # 2 is determined to be idle. 即,无线站1变成无法对无线信道弁2进行发送禁止的状态。 That is, the wireless station 1 into a state of a radio channel can not be transmitted Bian prohibited 2. 另一方面,在无线站2,由于向无线井2设定NAV,从而发送被禁止。 On the other hand, in the wireless station 2, since the well 2 to the wireless set NAV, thereby sending is disabled. 此时,可以预见在无线信道#2中会发生从无线站1在定时t3发送的无线分组和从其他无线站发送的无线分组冲突,从而导致吞吐量的下降。 At this time, the timing can be foreseen a wireless packet transmitted t3 and wireless packet collisions from the radio station 1 is transmitted from other radio stations in the wireless channel # 2 may occur, resulting in degradation in throughput. 而且, 难以与仅利用无线信道#2的现有无线分组发送方法并存。 Further, it is difficult to use with only the wireless channel # 2 existing wireless packet transmission method coexist.

也可以预见,向无线信道的泄漏不仅限于邻接信道,也会波及到其下一个的无线信道等很多无线信道,从而无法正常进行虚拟载波侦听的范围会涉及一个大范围。 It is also envisioned, is not limited to the radio channel adjacent channel leakage, it will spread to the next radio channel and so many radio channels, which can not be the normal range of virtual carrier sense will involve a wide range.

本发明的目的是提供一种无线分组通信方法及无线分组通信装置,从而在使用多个无线信道的无线分组通信系统中,可减少例如由于向邻接信道发生泄漏而引起的吞吐量下降的因素。 Object of the present invention is to provide a wireless packet communication method and a wireless packet communication apparatus, whereby wireless packet communication system using a plurality of wireless channels may be reduced because a certain factor, for example, to the adjacent channel leakage occurs due to decrease.

发明内容 SUMMARY

根据第一方式的发明,发送方无线站利用被物理载波侦听和虚拟载波侦听双方判定为空闲状态的多个无线信道并行发送多个无线分组,其中, 所述物理载波侦听根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听判定在设定的发送禁止时间中为忙碌状态。 According to a first aspect of the invention, the wireless station using the sender is determined both physical carrier sensing and virtual carrier sensing an idle state of the plurality of radio channels in parallel a plurality of wireless transmit packets, wherein the physical carrier sense of the reception power determined busy or idle, the virtual carrier sensing determines that the busy status is set in a transmission prohibition time. 此时,在用于并行发送的无线信道中针对需要最长发送时间Tmax的无线信道以外的被动无线信道,设定在Tmax上相加预定时间Ts而得的时间(Tmax + Ts),以作为用于虚拟载波侦听的发送禁止时间。 In this case, other than for the passive transmission requires the longest time Tmax radio channel for a radio channel in the radio channel are transmitted in parallel, the set time Ts obtained by adding a predetermined time (Tmax + Ts) in Tmax, as send a virtual carrier sense of time is prohibited.

根据第二方式的发明,在第一方式的发明的发送方无线站中,当为用 According to a second aspect of the invention, the transmission side radio station to the first aspect of the invention, when used for the

于虚拟载波侦听而已设定在被动无线信道中的发送禁止时间短于(Tmax + Ts)时,设定(Tmax + Ts)作为新的发送禁止时间。 When the virtual carrier sense it is set in a passive radio channel transmission prohibition time is shorter than (Tmax + Ts), set (Tmax + Ts) as a new transmission prohibition time.

根据第一、第二方式的发明,在进行并行发送的无线信道之中,即使在由于发送时间最长的无线信道的泄漏影响,从而其他无线信道无法顺利进行接收的情况下,也能够给其他无线信道设定与最长发送时间相应的发送禁止时间,因此能够使虚拟载波侦听正常工作。 According to the invention a first, a second aspect, the radio channel is performed in parallel sent, even in a case where the longest time since the transmission leakage effects of the wireless channel, so that the other radio channel can not be received successfully, it is possible for other setting up the radio channel corresponding to the transmission time of the transmission prohibition period, it is possible to work virtual carrier sensing.

根据第三方式的发明,发送方无线站在多个无线信道之中预先确定互相给予发送功率泄漏影响的无线信道的组合,并在各组合的无线信道中针对需要最长发送时间Ti的无线信道以外的被动无线信道,设定在Ti上相加预定时间Ts而得的时间(Ti + Ts),以作为用于虚拟载波侦听的发送禁止时间。 According to a third aspect of the invention, the transmission side radio station radio channels among a plurality of predetermined combinations given radio channel transmission power leakage influence each other, and take up a radio channel for the radio channel transmission time Ti of each combination of passive radio channel other than the set time Ts obtained by adding a predetermined time (Ti + Ts) on the Ti, as the transmission inhibition time for the virtual carrier sensing.

根据第四方式的发明,在第三方式的发明的发送方无线站中,当为用于虚拟载波侦听而已设定在被动无线信道中的发送禁止时间短于(Ti + Ts)时,设定(Ti + Ts)作为新的发送禁止时间。 According to a fourth aspect of the invention, the transmission side radio station to the third aspect of the invention, when it is used for virtual carrier sensing is set in the passive radio channel transmission prohibition time is shorter than (Ti + Ts), the set set (Ti + Ts) as a new transmission prohibition time.

根据第三、第四方式的发明,在多个无线信道之中预先确定互相给予发送功率泄漏影响的无线信道的组合,并且即使当在各组合的无线信道之中由于发送时间最长的无线信道的泄漏影响,从而其他无线信道无法顺利进行接收的时候,也能够给其他无线信道设定与最长发送时间相应的发送禁止时间,因此能够使虚拟载波侦听正常工作。 According to the third invention, the fourth aspect, in a wireless channel among a plurality of predetermined radio channel the transmission power of each given combination of leakage effect, and even when the radio channel transmission due to the longest time among the wireless channel of each combination the leakage effects, so when other radio channel can not be received well, but also to other radio channels can be set up to send the appropriate time to send prohibition time. Therefore, the virtual carrier sense to work.

根据第五方式的发明,在第一至第四方式中任一发明的发送方无线站中, 检测被动无线信道上的由来自发送无线信道的泄漏引起的接收功率,并对该接收功率大于等于预定的阈值的被动无线信道设定发送禁止时间。 According to a fifth aspect of the invention, the invention according to any one of the first to fourth aspects of the sender radio station, detecting the reception power caused by a leak from the transmission radio channel of the passive radio channel, and the received power greater than or equal predetermined threshold value is set passive radio channel transmission prohibition time.

由此,可将没有检测到预定的接收功率的无线信道作为没有泄漏影响的信道而从发送禁止时间的设定对象中排除。 Thus, not detected may be a predetermined received power as the radio channel is not a channel leakage effect excluded from the setting of the target transmission prohibition time. 从而,能够使虚拟载波侦听正常工作,并可避免多余的发送禁止时间的设定,由此可改善效率。 Thus, virtual carrier sensing can be made to work, and to avoid unnecessary transmission prohibition time is set, thereby improving the efficiency.

根据第六方式的发明,在第一至第四方式中任一发明的发送方无线站屮,进行被动无线信道的接收信号的检错,并对检测到错误的被动无线信道设定发送禁止时间。 According to a sixth aspect of the invention, the invention according to any one of the first to fourth aspects Cao sender radio station, radio channel passive error detection of the received signal, and the error is detected is set passive radio channel transmission prohibition time .

由此,可将接收信号没有错误(错误少)的无线信道作为没有泄漏影 Accordingly, no error signal can be received (fewer errors) as the radio channel without leaking Movies

响的信道而从发送禁止时间的设定对象中排除。 Ring channels excluded from the setting of the target transmission prohibition time. 从而,能够使虚拟载波侦听正常工作,并可避免多余的发送禁止时间的设定,由此可改善效率。 Thus, virtual carrier sensing can be made to work, and to avoid unnecessary transmission prohibition time is set, thereby improving the efficiency.

根据第七方式的发明,在第一至第四方式中任一发明的发送方无线站中,当以被动无线信道接收了无线分组时,进行所接收无线分组的检错, 并对于顺利接收了发给本站的无线分组的无线信道,当其中设有发送禁止时间时删除该发送禁止时间,并当所接收无线分组的报头中设有占空时间时重新设定与其对应的发送禁止时间。 According to a seventh aspect of the invention, any one of a sender radio station in the first invention to the fourth aspect, when the received packet is a passive wireless radio channel, error detection of the received radio packet, and for receiving the smooth packet sent to the radio station of a radio channel, wherein when the transmission prohibition period is provided to delete the transmission inhibition time, and when the received radio packet header is provided to reset the duty time corresponding to the transmission inhibition time.

由此,当在发送禁止时间的设定当中无线分组被顺利接收时,可删除当前的发送禁止时间,而且还可以根据其报头中记载的占空时间来更新发送禁止时间。 Thus, when a packet is successfully received at the radio transmission prohibition time is set among the transmission prohibition can delete the current time, but also to update the time based on the duty transmission prohibition time described in its header. 从而,能够使虚拟载波侦听正常工作,并可避免多余的发送禁止时间的设定,由此可改善效率。 Thus, virtual carrier sensing can be made to work, and to avoid unnecessary transmission prohibition time is set, thereby improving the efficiency.

根据第八方式的发明,在第一至第四方式中任一发明的发送方无线站中,如果在产生了发送数据时存在设有发送禁止时间的无线信道,则在待机至该发送禁止时间结束之后,利用被判定为空闲状态的无线信道发送无线分组。 According to an eighth aspect of the invention, the invention according to any one of the first to fourth aspects the sender radio station, there is provided a radio channel transmission prohibition time if the transmission data is generated, the transmission prohibition period to the standby after the use is determined to be idle wireless channel transmitting the wireless packet.

由此,在多个无线信道之中只要有一个设有发送禁止时间的无线信道,就待机至其发送禁止时间结束,从而在所有无线信道中没有设定发送禁止时间的状态下,使用空闲状态的无线信道并行发送多个无线分组。 Accordingly, among the plurality of radio channels as long as there is provided a radio channel transmission prohibition time, it waits until the end of its transmission prohibition time, so that no transmission prohibition time is set in a state in all radio channel, using the idle state a plurality of radio channels simultaneously transmitted radio packet. 从而,即使在考虑到其他无线信道的泄漏影响而强制设定发送禁止时间的情况下,发送禁止时间也不会被连续设定,因此可避免特定无线信道的忙碌状态的持续。 Thus, even in consideration of the influence of other radio channel leakage force transmission prohibition time is set, the transmission prohibition time can not be continuously set, it can be avoided for a specific radio channel busy state.

根据第九方式的发明,在第一至第四方式中任一发明的发送方无线站中,如果在发生了发送数据时存在设有发送禁止时间的无线信道,并且该最长的发送禁止时间小于预定阈值,则在待机至该发送禁止时间结束之后,利用被判定为空闲状态的无线信道发送无线分组,或者如果其中最长的发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to a ninth aspect of the invention, the invention according to any one of the first to fourth aspect of the transmit-side STA, when data is transmitted if there occurs a radio channel with the transmission inhibition time, and the longest time the transmission prohibition less than a predetermined threshold value, to prohibit the transmission after the end of standby time is determined by using the idle wireless channel as the wireless packet transmission, or if the longest transmission prohibition time is greater than equal to a predetermined threshold value, without waiting for the transmission prohibition time end, it is determined to use the idle wireless channel transmitting the wireless packet.

由此,若设定了发送禁止时间的无线信道中最长的发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道并行发送多个无线分组。 Thus, if the radio channel is set the longest time to send the transmission prohibition prohibition time is not less than a predetermined threshold value, the end of the transmission prohibition time without waiting, it is determined to use the idle wireless channel parallel transmission a plurality of radio grouping. 另一方面,若设定了发送禁止时间的无线信道中最长的发送禁止时间小于预定阈值,则待机至该发送禁止时间结束,从而在所有无线信道上没有设定发送禁止时间的状态下,利用空闲状态的无线信道并行发送多个无线分组。 On the other hand, when the set radio channel transmission prohibition time of the longest transmission prohibition time is less than a predetermined threshold value, it waits until the end of the transmission prohibition period, so that no state setting transmission prohibition time on all radio channels, using the idle wireless channels in parallel a plurality of radio transmission packets. 从而,可设定待机时间的上限,并且即使在强制设定发送禁止时间的情况下,也能够适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even when the forcedly setting the transmission prohibition time can be appropriately avoided transmission prohibition time is continuously set.

根据第十方式的发明,在第一至第四方式中任一发明的发送方无线站中,如果在产生了发送数据时存在设有发送禁止时间的无线信道,则以预定的概率不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to a tenth aspect of the invention, the invention according to any one of the first to fourth aspects the sender radio station, there is provided a radio channel transmission prohibition time if the transmission data is generated, places without waiting the predetermined probability prohibiting transmission end time, it is determined to use the idle wireless channel transmitting the wireless packet.

由此,若存在设定了发送禁止时间的无线分组,则以预定的概率不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道并行发送多个无线分组。 Accordingly, if there is set the packet radio transmission prohibition time, places a predetermined probability is not waiting for the end of the transmission prohibition time, it is determined to use the idle wireless channel in parallel a plurality of radio transmission packets. 另一方面,以预定的概率待机至该发送禁止时间结束之后,在所有无线信道上没有设定发送禁止时间的状态下,利用空闲状态的无线信道并行发送多个无线分组。 On the other hand, at a predetermined probability after the transmission prohibition waits until the end time, the transmission state is not set prohibition time on all radio channels, using the idle wireless channels in parallel a plurality of radio transmission packets. 从而,可设定待机时间的上限,并且即使在强制设定发送禁止时间的情况下,也能够适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even when the forcedly setting the transmission prohibition time can be appropriately avoided transmission prohibition time is continuously set.

根据第十一方式的发明,在第一至第四方式中任一发明的发送方无线站中,当产生了发送数据时,在待机至所有无线信道被物理载波侦听和虚拟载波侦听判定为空闲状态之后,利用被判定为空闲状态的无线信道发送无线分组。 According to an eleventh aspect of the invention, the invention according to any one of the first to fourth aspects of the sender radio station, when the transmission data is generated, in a standby radio channel is determined to all physical carrier sensing and virtual carrier sensing is after the idle state, the wireless transmission packet is determined using the idle wireless channels.

由此,在多个无线信道中只要有一个忙碌状态的无线信道,就待机至其变为空闲状态,从而在所有无线信道变为空闲状态的情况下,利用这些无线信道并行发送多个无线分组。 Thus, a plurality of radio channels as long as there is a busy state of a wireless channel, it waits until it becomes idle state, so that when all the radio channel becomes idle, the use of a plurality of radio channels simultaneously transmitted radio packet . 由此,可更多地设定用于并行发送的无线信道数,并且即使在强制设定发送禁止时间的情况下,发送禁止时间也不会被连续设定,从而可避免特定无线信道的忙碌状态的持续。 Thus, the more the number of radio channels is set for transmission in parallel, and even in a case where the forced transmission prohibition time is set, the transmission prohibition time can not be set continuously, thereby avoiding the particular wireless channel busy continuous state.

根据第十二方式的发明,在第一至第四方式中任一发明的发送方无线站中,当产生了发送数据时,在待机至所有无线信道被物理载波侦听和虚拟载波侦听判定为空闲状态之后,利用被判定为空闲状态的无线信道发送无线分组,或者如果设有发送禁止时间的无线信道的最长发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to a twelfth embodiment of the invention, the invention according to any one of the first to fourth aspects of the sender radio station, when the transmission data is generated, in a standby radio channel is determined to all physical carrier sensing and virtual carrier sensing is after the idle state, the state is determined to be idle wireless channel transmitting the wireless packet, or if the radio channel, a transmission prohibition time of the maximum transmission prohibition time is greater than a predetermined threshold value is equal to, the end of the transmission prohibition time without waiting, to using the wireless transmission packet is determined to be idle wireless channels.

由此,如果设有发送禁止时间的无线信道中最长发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用空闲状态的无线信道并行发送多个无线分组。 Thus, if the wireless channel has a transmission prohibition time of the longest transmission prohibition time is not less than a predetermined threshold value, the end of the transmission without waiting prohibition time, the idle wireless channel on the use of a plurality of radio packets transmitted in parallel. 另一方面,如果设有发送禁止时间的无线信道中最长发送禁止时间小于预定阈值,则在待机至所有无线信道变成空闲状态之后,利用这些空闲状态的无线信道并行发送多个无线分组。 After the other hand, if the wireless channel with the longest transmission prohibition time transmission prohibition time is less than a predetermined threshold value, then waits until all wireless channel becomes idle state, using the idle wireless channels in parallel a plurality of radio transmission packets. 由此,可设定待机时间的上限,并且即使在如上述强制设定发送禁止时间的情况下,也可以适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even in a case where the transmission prohibition time as the forced setting, can be appropriately avoided transmission prohibition time is continuously set.

根据第十三方式的发明,在第十二方式的发明的发送方无线站中,在存在设有所述发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 According to a thirteenth embodiment of the invention, the transmit-side STA of a twelfth embodiment of the invention, in the presence of packet radio transmission prohibition time is provided with the wireless transmission prohibition set time is less than a predetermined threshold value, if present, channels, to the transmitting end after the prohibition time, using the wireless transmission packet is determined to be idle in a standby radio channel, if not the set radio channel transmission prohibition time is less than a predetermined threshold value, without waiting for the transmission prohibition end time, transmits the packet using the radio is determined to the idle wireless channel.

根据第十四方式的发明,在第十三方式的发明的发送方无线站中,在存在设有所述发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有所述发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 According to a fourteenth embodiment of the invention, the transmission side radio station to a thirteenth embodiment of the invention, in the presence of a radio channel with the transmission prohibition time, and there is also the set of wireless transmission prohibition time is less than a predetermined threshold value channel case, after the standby time to end the transmission prohibition, whether there returns to the radio channel transmission prohibition time determination of the presence, or all of the wireless channel is in an idle state determination.

根据第十五方式的发明,在第十一方式的发明的发送方无线站中,当存在设有发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to a fifteenth embodiment of the invention, the transmission side radio station of the eleventh embodiment of the invention, when there is provided a packet radio transmission prohibition time, if the set radio channel transmission prohibition time is less than a predetermined threshold value, after the end of the ban to the transmission waiting time, it is determined by using the idle wireless channel as the wireless packet transmission, if not the set radio channel transmission prohibition time is less than a predetermined threshold value, the transmission without waiting for the end time of the prohibition, it is determined to be on the use of the idle wireless channel transmitting the wireless packet.

根据第十六方式的发明,在第十五方式的发明的发送方无线站中,在存在设有发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小 According to a sixteenth embodiment of the invention, the transmission side radio station of the fifteenth embodiment of the invention, in the presence of a radio channel with the transmission prohibition time, and there is also a small set of the transmission prohibition time

于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 In the case where the radio channel of a predetermined threshold value, waits until after the end of the transmission prohibition period, it returns to whether there is provided a radio channel transmission prohibition time of the determination, or all of the wireless channel is in an idle state determination.

根据第十五、第十六方式的发明,若在设定了发送禁止时间的无线信道之中没有发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用空闲状态的无线信道并行发送多个无线分组。 According to a fifteenth invention, in the sixteenth embodiment, if the wireless channel is set into the transmission prohibition time of the radio channel transmission prohibition time is not less than a predetermined threshold, the end of the transmission without waiting prohibition time, the idle state on the use of a plurality of radio channels simultaneously transmitted radio packet. 另一方面,若存在发送禁止时间小于预定阈值的无线信道,则待机至该发送禁止时间结束之后,利用空闲状态的无线信道并行发送多个无线分组。 On the other hand, when the transmission prohibition time is less than a predetermined threshold value, the radio channel is present, then waits until after the end of the transmission prohibition time, the idle wireless channel in parallel using a plurality of radio transmission packets. 由此, 可设定待机时间的上限,并可在有效应用待机时间的情况下实现高效率的无线分组的发送。 Accordingly, the upper limit can be set standby time, and transmits a radio packet to achieve high efficiency in a case where the effective application of standby time.

根据第十七方式的发明,在第一至第四方式中任一发明的发送方无线站中,当产生了发送数据时,在待机至所有的无线信道被物理载波侦听和虚拟载波侦听判定为处于空闲状态之后,利用被判定为空闲状态的无线信道发送无线分组,或者以预定的概率不进行待机,就利用被判定为空闲状态的无线信道发送无线分组。 According to a seventeenth embodiment of the invention, any of the first to fourth embodiment in a transmit-side STA invention, when transmission data is generated in the wireless channel waits until all physical carrier sensing and virtual carrier sensing after it is determined in the idle state, the idle state is determined to be the wireless transmission packet radio channel, at a predetermined probability or not standby, it is determined to use the idle wireless channel transmitting the wireless packet.

由此,若存在设定了发送禁止时间的无线分组,则以预定概率不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道并行发送多个无线分组。 Accordingly, if there is set the packet radio transmission prohibition time, without waiting for the end of a predetermined probability places the transmission prohibition time, it is determined to use the idle wireless channel in parallel a plurality of radio transmission packets. 另一方面,以预定概率待机至所有无线信道变为空闲状态, 从而利用这些空闲状态的无线信道并行发送多个无线分组。 On the other hand, at a predetermined probability to all standby radio channel becomes idle, so that use of these idle wireless channels in parallel a plurality of radio transmission packets. 因此,可设定待机时间的上限,并且即使在强制设定发送禁止时间的情况下,也能够适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even when the forcedly setting the transmission prohibition time can be appropriately avoided transmission prohibition time is continuously set.

根据第十八方式的发明,在第一至第四方式中任一发明中,接收方无线站在所接收无线分组中设有发送禁止时间时,将该发送禁止时间设定到进行接收的无线信道中,并且在顺利接收了发给本站的无线分组时,向发送方无线站发送包含被动无线信道中设定的发送禁止时间的应答分组。 , Any of the first to fourth embodiment of the invention according to a eighteenth embodiment of the invention, the receiving radio station is provided with the received packet when the radio transmission prohibition period, the transmission prohibition time is set to receive radio when the channel, and successfully receives the wireless packet sent to the site, comprising a passive response packet radio channel set in the transmission prohibition period to the wireless station transmits the transmission side. 发送方无线站当从发送无线分组之后的预定时间内接收了对应的应答分组时,使用该应答分组中包含的被动无线信道的发送禁止时间,更新被动无线信道中设定的发送禁止时间。 When the transmit-side STA from the corresponding received within a predetermined time after transmission of the acknowledgment packet radio packets, using passive radio channel transmission prohibition time included in the response packet, updates the passive radio channel set in the transmission prohibition time.

由此,当在接收方无线站对设定了发送禁止时间的被动无线信道设有 Thus, when the receiving wireless station set of passive radio channel transmission prohibition period is provided

发送禁止时间时,将该发送禁止时间附加到应答分组上向发送方无线站发送。 When the transmission prohibition period, the transmission prohibition time attached to the transmission side radio station to transmit the response packet. 因此,发送方无线站可利用应答分组中附加的发送禁止时间来更新发送时设定的发送禁止时间,从而可避免多余的发送禁止时间的设定来改善效率。 Thus, the sender wireless station may utilize additional response packet transmission prohibition time may be updated when the transmission prohibition period, thereby avoiding unnecessary transmission prohibition time is set to improve the efficiency.

根据第十九方式的发明,在发送方无线站和一个或一个以上的接收方无线站之间设有复用于一个无线信道上的多个子信道,发送方无线站通过物理载波侦听和虚拟载波侦听双方对每个子信道进行空闲状态的判定,并将多个无线分组分别分配到被判定为空闲状态的多个子信道上进行并行发送,其中,所述物理载波侦听根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听判定在设定的发送禁止时间中为忙碌状态。 According to a nineteenth aspect of the invention, the wireless station between a sender and one or more receiving wireless station is provided with a plurality of multiplexed subchannels on a wireless channel, the wireless station by the sender physical carrier sensing and virtual both carrier sensing an idle state of each subchannel is determined, and a plurality of radio packets are allocated to the idle state is determined to be transmitted in parallel a plurality of sub-channels, wherein the physical carrier sense is determined according to the reception power busy or idle, the virtual carrier sensing determines that the busy status is set in a transmission prohibition time. 此时, at this time,

在用于并行发送的子信道中对需要最长发送时间Tmax的子信道以外的子信道,设定在Tmax上相加预定时间Ts而得的时间(Tmax + Ts),以作为用于虚拟载波侦听的发送禁止时间。 Subchannels for parallel transmission of subchannel other than the transmission requires the longest time Tmax subchannel, setting time Ts obtained by adding a predetermined time (Tmax + Ts) in Tmax, as for the virtual carrier send prohibit listening time.

根据第二十方式的发明,在第十九方式的发明的发送方无线站中,当为用于虚拟载波侦听而已设定在子信道上的发送禁止时间短于(Tmax + Ts)时,设定(Tmax + Ts)作为新的发送禁止时间。 The twentieth aspect of the invention, the transmission side radio station of a nineteenth embodiment of the invention, when it is used for virtual carrier sensing is set in the sub-transmission prohibition time is shorter than (Tmax + Ts), the setting (Tmax + Ts) as a new transmission prohibition time.

根据第十九、第二十方式的发明,即使在除处于收发当中之外的子信道上不能进行接收的情况下,也能够给该子信道设定根据最长收发时间的发送禁止时间,因此能够使虚拟载波侦听正常工作。 According to the nineteenth invention, the twentieth embodiment, the case can not be received even when the subchannel other than the transceiver in which, it is possible to set the prohibition time subchannel transceiver according to the transmission time of the longest, and therefore It enables virtual carrier sense to work.

根据第二十一方式的发明,发送方无线站利用被物理载波侦听单元和虚拟载波侦听单元双方判定为空闲状态的多个无线信道并行发送多个无线分组,其中,所述物理载波侦听单元根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听单元判定在设定的发送禁止时间中为忙碌状态。 According to a twenty-first aspect of the invention, the transmission side radio station is determined using a physical carrier sensing and virtual carrier sensing unit cell is both idle wireless channels in parallel a plurality of transmitting a plurality of radio packets, wherein the physical carrier sensing listen to the reception power determination unit is busy or idle, the virtual carrier sensing means determines that the busy status is set in a transmission prohibition time. 此时,虚拟载波侦听单元在用于并行发送的无线信道中针对需要最长发送时间Tmax的无线信道以外的被动无线信道,设定在Tmax上相加预定时间Ts而得的时间(Tmax + Ts),以作为发送禁止时间。 In this case, virtual carrier sensing unit except for passive transmission requires the longest time Tmax radio channel for a radio channel in the radio channel are transmitted in parallel, the time is set by adding a predetermined time Ts of the Tmax obtained (Tmax + Ts), as the transmission inhibition time.

根据第二十二方式的发明,第二十一方式的发明的发送方无线站的虚拟载波侦听单元在对被动无线信道已设定的发送禁止时间短于(Tmax + According to the twenty-second aspect of the invention, the transmit-side STA virtual carrier sensing unit of the invention in a twenty-first embodiment of the set of passive radio channel transmission prohibition time is shorter than (Tmax +

Ts)时,设定(Tmax + Ts)作为新的发送禁止时间。 When Ts), setting (Tmax + Ts) as a new transmission prohibition time.

根据第二十一、第二十二方式的发明,在进行并行发送的无线信道之中,即使在由于发送时间最长的无线信道的泄漏影响,从而其他无线信道无法顺利进行接收的情况下,也能够给其他无线信道设定与最长发送时间相应的发送禁止时间,因此能够使虚拟载波侦听正常工作。 According to the invention the twenty-first, twenty-second embodiment, the radio channel is performed in parallel sent, even in the longest time since the transmission leakage effects of the wireless channel, so that the other case where a radio channel can not be successfully received, it is possible to set a radio channel with another transmission time corresponding to the maximum transmission prohibition time, it is possible to work virtual carrier sensing.

根据第二十三方式的发明,发送方无线站的虚拟载波侦听单元在多个无线信道之中预先确定互相给予发送功率泄漏影响的无线信道的组合,并在各组合的无线信道中针对需要最长发送时间Ti的无线信道以外的被动无线信道,设定在Ti上相加预定时间Ts而得的时间(Ti + Ts),以作为发送禁止时间。 According to a twenty-third aspect of the invention, the transmit-side STA virtual carrier sensing unit among the plurality of radio channels each given a predetermined combination of the transmission power of the radio channel affected by the leak, and the need for each radio channel combinations other than the maximum transmission time Ti of the radio channel passive radio channel, by adding a predetermined time in the set time Ts of the obtained Ti (Ti + Ts), as the transmission inhibition time.

根据第二十四方式的发明,第二十三方式的发明的发送方无线站的虚拟载波侦听单元在已对被动无线信道设定的、用于虚拟载波侦听的发送禁止时间短于(Ti + Ts)时,设定(Ti + Ts)作为新的发送禁止时间。 According to the twenty-fourth aspect of the invention, the transmit-side STA virtual carrier sensing unit of the twenty-third embodiment of the invention in passive radio channel has been set, the transmission prohibition period for virtual carrier sensing is shorter than the ( ti + Ts), the setting (ti + Ts) as a new transmission prohibition time.

根据第二十三、第二十四方式的发明,在多个无线信道之中预先确定互相给予发送功率泄漏影响的无线信道的组合,即使当在各组合的无线信道之中由于发送时间最长的无线信道的泄漏影响,从而其他无线信道无法顺利进行接收的时候,也能够给其他无线信道设定与最长发送时间相应的发送禁止时间,因此能够使虚拟载波侦听正常工作。 According to the invention the twenty-third, twenty-fourth aspect, in a wireless channel among a plurality of predetermined combinations of the transmission power given radio channel leakage effects of one another, even when the wireless channel since in each combination of the longest transmission the radio channel leakage effects, so when other radio channel can not be received well, but also to other radio channels can be set up to send the appropriate time to send prohibition time. Therefore, the virtual carrier sense to work.

根据第二十五方式的发明,在第二十一至第二十四方式中任一发明的发送方无线站中,包括用于检测被动无线信道上的由来自发送无线信道的泄漏引起的接收功率的单元,虚拟载波侦听单元给该接收功率大于等于预阈值的被动无线信道设定发送禁止时间。 According to the twenty-fifth aspect of the invention, any of the twenty first to twenty fourth embodiment of the invention, a sender in wireless station, comprising means for receiving from the transmission caused by the leakage of the radio channel on the detector passive radio channel power unit, virtual carrier sensing unit is equal to the received power is greater than a pre-set threshold value, passive radio channel transmission prohibition time.

由此,可将没有检测到预定的接收功率的无线信道作为没有泄漏影响的信道而从发送禁止时间的设定对象中排除。 Thus, not detected may be a predetermined received power as the radio channel is not a channel leakage effect excluded from the setting of the target transmission prohibition time. 从而,能够使虚拟载波侦听正常工作,并可避免多余的发送禁止时间的设定,由此可改善效率。 Thus, virtual carrier sensing can be made to work, and to avoid unnecessary transmission prohibition time is set, thereby improving the efficiency.

根据第二十六方式的发明,在第二十一至第二十五方式中任一发明的发送方无线站中,包括进行被动无线信道的接收信号的检错的单元,虚拟载波侦听单元对检测到错误的被动无线信道设定发送禁止时间。 According to the twenty-sixth aspect of the invention, any of the twenty-first to twenty-fifth embodiment of the invention, the sender of a radio station, the radio channel including a passive unit receives the error detection signal, virtual carrier sensing unit the detected error passive radio channel is set to send prohibition time.

由此,可将接收信号没有错误(错误少)的无线信道作为没有泄漏影 Accordingly, no error signal can be received (fewer errors) as the radio channel without leaking Movies

响的信道而从发送禁止时间的设定对象中排除。 Ring channels excluded from the setting of the target transmission prohibition time. 从而,能够使虚拟载波侦听正常工作,并可避免多余的发送禁止时间的设定,由此可改善效率。 Thus, virtual carrier sensing can be made to work, and to avoid unnecessary transmission prohibition time is set, thereby improving the efficiency.

根据第二十七方式的发明,在第二十一至第二十六方式中任一发明的发送方无线站中,包括在被动无线信道上接收了无线分组时进行所接收无线分组的检错的单元,虚拟载波侦听单元对于顺利接收了发给本站的无线分组的无线信道,当其中设有发送禁止时间时删除该发送禁止时间,同时当所接收无线分组的报头中设有占空时间时重新设定与其对应的发送禁止时间。 , Any of the twenty-first invention to twenty-sixth embodiment of the sender radio station performs error detection on the received wireless packet comprises receiving a packet on a wireless passive wireless channel according to the twenty-seventh embodiment of the invention, a unit for virtual carrier sensing unit successfully received packets sent to the wireless radio channel site, deleting the transmission prohibition time when the transmission prohibition period is provided wherein at the same time with the time when the duty of the received radio packet header re-setting the corresponding transmission prohibition time.

由此,当在发送禁止时间的设定当中无线分组被顺利接收时,可删除当前的发送禁止时间,而且还可以根据其报头中记载的占空时间来更新发送禁止时间。 Thus, when a packet is successfully received at the radio transmission prohibition time is set among the transmission prohibition can delete the current time, but also to update the time based on the duty transmission prohibition time described in its header. 从而,能够使虚拟载波侦听正常工作,并可避免多余的发送禁止时间的设定,由此可改善效率。 Thus, virtual carrier sensing can be made to work, and to avoid unnecessary transmission prohibition time is set, thereby improving the efficiency.

根据第二十八方式的发明,在第二十一至第二十七方式中任一发明的发送方无线站中,如果在产生了发送数据时存在设有发送禁止时间的无线信道,则在待机至该发送禁止时间结束之后,利用被判定为空闲状态的无线信道发送无线分组。 According to the twenty-eighth aspect of the invention, the invention according to any one of the twenty-first to twenty-seventh embodiment of the sender radio station, there is provided a radio channel transmission prohibition time if the transmission data is generated, then waits until after the transmission prohibition period end, use is determined to be idle wireless channel transmitting the wireless packet.

由此,在多个无线信道之中只要有一个设有发送禁止时间的无线信道,就待机至该发送禁止时间结束,从而在所有无线信道中没有设定发送禁止时间的状态下,使用空闲状态的无线信道并行发送多个无线分组。 Accordingly, among the plurality of radio channels as long as there is provided a radio channel transmission prohibition time, it waits until the end of the transmission prohibition time, so that no transmission prohibition time is set in a state in all radio channel, using the idle state a plurality of radio channels simultaneously transmitted radio packet. 从而,即使在考虑到其他无线信道的泄漏影响而强制设定发送禁止时间的情况下,发送禁止时间也不会被连续设定,因此可避免特定无线信道的忙碌状态的持。 Thus, even in consideration of the influence of other radio channel leakage force transmission prohibition time is set, the transmission prohibition time can not be set continuously, thereby avoiding the holding of a particular radio channel busy state.

根据第二十九方式的发明,在第二十一至第二十七方式中任一发明的发送方无线站中,虚拟载波侦听单元如果在发生了发送数据时存在设有发送禁止时间的无线信道,并且该最长的发送禁止时间小于预定阈值,则在待机至该发送禁止时间结束之后,利用被判定为空闲状态的无线信道发送无线分组,或者如果其中最长的发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to the twenty-ninth aspect of the invention, the invention according to any one of the twenty-first to twenty-seventh embodiment of the sender radio station, if there is virtual carrier sensing means occurs when data is transmitted, a transmission prohibition time radio channel, and the longest transmission prohibition time is less than a predetermined threshold value, to prohibit the transmission after the end time is determined by using the idle wireless channel in a standby radio transmission packet, or if the longest time is greater than or equal transmission prohibition a predetermined threshold, the end of the transmission prohibition time without waiting, it is determined to use the idle wireless channel transmitting the wireless packet.

由此,若设定了发送禁止时间的无线信道中最长的发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用空闲状态的无线 Thus, if the radio channel is set the longest time to send the transmission prohibition prohibition time is not less than a predetermined threshold value, the end of the transmission without waiting prohibition time, the idle state on the use of radio

信道并行发送多个无线分组。 A plurality of radio channels simultaneously transmitted packets. 另一方面,若设定了发送禁止时间的无线信道中最长的发送禁止时间小于预定阈值,则待机至该发送禁止时间结束, 从而在所有无线信道上没有设定发送禁止时间的状态下,利用空闲状态的无线信道并行发送多个无线分组。 On the other hand, when the set radio channel transmission prohibition time of the longest transmission prohibition time is less than a predetermined threshold value, it waits until the end of the transmission prohibition period, so that no state setting transmission prohibition time on all radio channels, using the idle wireless channels in parallel a plurality of radio transmission packets. 从而,可设定待机时间的上限,并且即使在强制设定发送禁止时间的情况下,也能够适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even when the forcedly setting the transmission prohibition time can be appropriately avoided transmission prohibition time is continuously set.

根据第三十方式的发明,在第二十一至第二十七方式中任一发明的发送方无线站中,虚拟载波侦听单元如果在产生了发送数据时存在设有发送禁止时间的无线信道,则以预定的概率不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 The thirtieth aspect of the invention, the invention according to any one of the twenty-first to twenty-seventh embodiment of the sender radio station, virtual carrier sensing unit is provided wireless transmission prohibition present time if the transmission data is generated channel, places a predetermined probability without waiting for the end of the transmission prohibition time, it is determined to use the idle wireless channel transmitting the wireless packet.

由此,若存在设定了发送禁止时间的无线分组,则以预定的概率不等待该发送禁止时间的结束,就利用空闲状态的无线信道并行发送多个无线分组。 Accordingly, if there is set the packet radio transmission prohibition time, places a predetermined probability is not waiting for the end of the transmission prohibition time, the idle wireless channel on the use of a plurality of radio packets transmitted in parallel. 另一方面,以预定的概率待机至该发送禁止时间结束之后,在所有无线信道上没有设定发送禁止时间的状态下,利用空闲状态的无线信道并行发送多个无线分组。 On the other hand, at a predetermined probability after the transmission prohibition waits until the end time, the transmission state is not set prohibition time on all radio channels, using the idle wireless channels in parallel a plurality of radio transmission packets. 从而,可设定待机时间的上限,并且即使在强制设定发送禁止时间的情况下,也能够适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even when the forcedly setting the transmission prohibition time can be appropriately avoided transmission prohibition time is continuously set.

根据第三十一方式的发明,在第二十一至第二十七方式中任一发明的发送方无线站中,物理载波侦听单元和虚拟载波侦听单元在产生了发送数据时,在待机至所有无线信道被判定为空闲状态之后,利用被判定为空闲状态的无线信道发送无线分组。 According to the thirty-first aspect of the invention, the invention according to any one of the twenty-first to twenty-seventh embodiment of the sender radio station, a physical carrier sensing and virtual carrier sensing unit generates a transmission data unit, in after waiting until all radio channels are determined to be idle, it is determined by using the idle wireless channel transmitting the wireless packet.

由此,在多个无线信道中只要有一个忙碌状态的无线信道,就待机至其变为空闲状态,从而在所有无线信道变为空闲状态的情况下,利用这些无线信道并行发送多个无线分组。 Thus, a plurality of radio channels as long as there is a busy state of a wireless channel, it waits until it becomes idle state, so that when all the radio channel becomes idle, the use of a plurality of radio channels simultaneously transmitted radio packet . 由此,可更多地设定用于并行发送的无线信道数,并且即使在强制设定发送禁止时间的情况下,发送禁止时间也不会被连续设定,从而可避免特定无线信道的忙碌状态的持续。 Thus, the more the number of radio channels is set for transmission in parallel, and even in a case where the forced transmission prohibition time is set, the transmission prohibition time can not be set continuously, thereby avoiding the particular wireless channel busy continuous state.

根据第三十二方式的发明,在第二十一至第二十七方式中任一发明的发送方无线站中,物理载波侦听单元和虚拟载波侦听单元在发生了发送数据时,在待机至所有无线信道被判定为空闲状态之后,利用被判定为空闲状态的无线信道发送无线分组,或者如果设有发送禁止时间的无线信道的最长发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束, According to the thirty-second aspect of the invention, the invention according to any one of the twenty-first to twenty-seventh embodiment of the sender radio station, a physical carrier sensing and virtual carrier sensing unit in the transmission data generating unit in the after all the radio channels are determined to be idle waiting to use it is determined to be idle wireless channel transmitting the wireless packet, or if the radio channel, a transmission prohibition time of the maximum transmission prohibition time is greater than a predetermined threshold value is equal, without waiting for the send prohibit the end of time,

就利用被判定为空闲状态的无线信道发送无线分组。 It is determined to be on the use of the idle wireless channel transmitting the wireless packet.

由此,如果设有发送禁止时间的无线信道中最长发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道并行发送多个无线分组。 Thus, if the wireless channel has a transmission prohibition time of the longest transmission prohibition time is not less than a predetermined threshold value, the end of the transmission prohibition time without waiting, it is determined using the idle wireless channels in parallel a plurality of radio transmission packets. 另一方面,如果设有发送禁止时间的无线信道中最长发送禁止时间小于预定阈值,则在待机至所有无线信道变成空闲状态之后,利用这些空闲状态的无线信道并行发送多个无线分组。 After the other hand, if the wireless channel with the longest transmission prohibition time transmission prohibition time is less than a predetermined threshold value, then waits until all wireless channel becomes idle state, using the idle wireless channels in parallel a plurality of radio transmission packets. 由此,可设定待机时间的上限,并且即使在如上述强制设定发送禁止时间的情况下,也可以适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even in a case where the transmission prohibition time as the forced setting, can be appropriately avoided transmission prohibition time is continuously set.

根据第三十三方式的发明,在第三十二方式的发明的发送方无线站中,虚拟载波侦听单元在存在设有所述发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 The thirty-third aspect of the invention, the transmission side radio station thirty-second aspect of the invention, the virtual carrier sensing unit is provided with prohibition time when the wireless packet transmission, if transmission of the set is present in the presence of prohibition time is less than a predetermined threshold value of the radio channel, then waits until after the transmission prohibition period end, using the wireless transmission packet is determined to be idle wireless channel, without setting the transmission prohibition time is less than a predetermined threshold value, the radio channel , without waiting for the end of the transmission prohibition time can be determined by using the idle wireless channel is a wireless transmission packet.

根据第三十四方式的发明,在第三十三方式的发明的发送方无线站中,虚拟载波侦听单元在存在设有所述发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有所述发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 The thirty-fourth aspect of the invention, the transmission side radio station thirty-third aspect of the invention, the virtual carrier sensing unit is provided wireless channel exists in the transmission prohibition time, and there is also the set transmission the wireless channel prohibited time is less than a predetermined threshold value, waits until after the end of the transmission prohibition period, whether there returns to the radio channel transmission prohibition time determination of the presence of, or all of the wireless channel is idle determination in.

根据第三十五方式的发明,在第二十九方式的发明的发送方无线站中,虚拟载波侦听单元在存在设有发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to the thirty-fifth aspect of the invention, the transmission side radio station of the twenty-ninth embodiment of the invention, the virtual carrier sensing when the unit is provided wireless transmission prohibition time of the packet, if the transmission inhibition time set exists in the presence of the radio channel is smaller than a predetermined threshold value, after the prohibition of the transmission to the end time is determined by using the idle wireless channel in a standby radio transmission packet, if not the set radio channel transmission prohibition time is less than a predetermined threshold value, without waiting for the the transmission prohibition time of the end, it was determined that the use of the idle wireless channel transmitting the wireless packet.

根据第三十六方式的发明,在第三十五方式的发明的发送方无线站中,虚拟载波侦听单元在存在设有发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 According to the thirty-sixth aspect of the invention, the transmission side radio station thirty-fifth aspect of the invention, the virtual carrier sensing unit is provided wireless channel exists in the prohibition time, and there is also set a transmission prohibition time the radio channel is smaller than a predetermined threshold value, waits until after the end of the transmission prohibition period, returns to whether transmission prohibition time has determined the existence of a wireless channel, or all of the radio channels is idle determination.

根据第三十五、第三十六方式的发明,若在设定了发送禁止时间的无线信道之中没有发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用空闲状态的无线信道并行发送多个无线分组。 According to the invention the thirty-fifth, thirty-sixth aspect, if the radio channel is set into the transmission prohibition time of the radio channel transmission prohibition time is not less than a predetermined threshold, the end of the transmission without waiting prohibition time, on the use of idle wireless channels in parallel a plurality of radio transmission packets. 另-方面,若存在发送禁止时间小于预定阈值的无线信道,则待机至该发送禁止时间结束之后,利用空闲状态的无线信道并行发送多个无线分组。 The other - hand, if the transmission prohibition time is less than a predetermined threshold value of the radio channel is present, then waits until the end of the transmission prohibition time after, using the idle wireless channel in parallel a plurality of radio transmission packets. 由此,可设定待机时间的上限,并可在有效应用待机时间的情况下实现高效率的无线分组的发送。 Accordingly, the upper limit can be set standby time, and transmits a radio packet to achieve high efficiency in a case where the effective application of standby time.

根据第三十七方式的发明,在第二十一至第二十七方式任一发明的发送方无线站中,物理载波侦听单元和虚拟载波侦听单元在产生了发送数据时,在待机至所有的无线信道被判定为处于空闲状态之后,利用被判定为空闲状态的无线信道发送无线分组,或者以预定的概率不等待该发送禁止时间的结束,就利用被判定为空闲状态的无线信道发送无线分组。 According to the thirty-seventh aspect of the invention, the invention according to any one of the twenty-first to twenty-seventh embodiment the sender radio station, a physical carrier sensing and virtual carrier sensing unit generates a transmission data unit, in the standby to all of the radio channels it is determined after the idle state, the state is determined to be idle wireless channel transmitting the wireless packet, or a predetermined probability without waiting for the end of the transmission prohibition time, it is determined to use the idle wireless channel packet radio transmission.

由此,若存在设定了发送禁止时间的无线分组,则以预定概率不等待该发送禁止吋间的结束,就利用被判定为空闲状态的无线信道并行发送多个无线分组。 Accordingly, if there is set the packet radio transmission prohibition time, which places a predetermined probability without waiting between the end of the transmission prohibition inch, it was determined that the use of the idle wireless channel in parallel a plurality of radio transmission packets. 另一方面,以预定概率待机至所有无线信道变为空闲状态, 从而利用这些空闲状态的无线信道并行发送多个无线分组。 On the other hand, at a predetermined probability to all standby radio channel becomes idle, so that use of these idle wireless channels in parallel a plurality of radio transmission packets. 因此,可设定待机时间的上限,并且即使在强制设定发送禁止时间的情况下,也能够适当地避免发送禁止时间被连续设定。 Thus, an upper limit standby time can be set, and even when the forcedly setting the transmission prohibition time can be appropriately avoided transmission prohibition time is continuously set.

根据第三十八方式的发明,在第二十一至第二十七方式中任一发明中,接收方无线站在所接收无线分组中设有发送禁止时间时,将该发送禁止时间设定到进行接收的无线信道中,并且在顺利接收了发给本站的无线分组时,向发送方无线站发送包含被动无线信道中设定的发送禁止时间的应答分组。 Any one of the twenty-first to twenty-seventh embodiment according to the invention in a thirty-eighth embodiment of the invention, the receiver is provided with a radio station when the radio packet transmission prohibition time, the setting time of the received transmission prohibition receiving the radio channel, and successfully received when a packet radio site, comprising passive response packet radio channel set in the transmission prohibition period to the wireless station transmits the transmission side. 发送方无线站当从发送无线分组之后的预定时间内接收了对应的应答分组时,使用该应答分组中包含的被动无线信道的发送禁止时间, 更新被动无线信道中设定的发送禁止时间。 When the transmit-side STA from the corresponding received within a predetermined time after transmission of the acknowledgment packet radio packets, using passive radio channel transmission prohibition time included in the response packet, updates the passive radio channel set in the transmission prohibition time.

由此,当在接收方无线站对设定了发送禁止时间的被动无线信道设有发送禁止时间时,将该发送禁止时间附加到应答分组上向发送方无线站发送。 Thus, when the receiving wireless station set of passive radio channel transmission prohibition time when the transmission prohibition period is provided, the transmission prohibition time attached to the transmission side radio station to transmit the response packet. 因此,发送方无线站可利用应答分组中附加的发送禁止时间来更新发送时设定的发送禁止时间,从而可避免多余的发送禁止时间的设定来改善效率。 Thus, the sender wireless station may utilize additional response packet transmission prohibition time may be updated when the transmission prohibition period, thereby avoiding unnecessary transmission prohibition time is set to improve the efficiency.

第三十九方式的发明包括: 一个收发器,通过复用多个子信道来利用一个无线信道进行接收发送;物理载波侦听单元,对于每个所述子信道, 根据接收功率来判定处于忙碌状态还是空闲状态;虚拟载波侦听单元,对于每个所述子信道,在其中设定的发送禁止时间内判定处于忙碌状态;其屮将多个无线分组分别分配到被所述物理载波侦听单元和所述虚拟载波侦听单元双方判定为空闲状态的多个子信道上,并通过所述收发器进行并行收发。 Thirty-ninth aspect of the invention comprises: a transceiver, a wireless channel for transmitting and receiving multiplexed by using a plurality of subchannels; physical carrier sensing means for each of the subchannels, determined according to the received power is busy or idle; virtual carrier sensing means for each of the subchannels, in which the transmission inhibition time set in the busy state is determined; Che which a plurality of radio packets are respectively assigned to the physical carrier sensing unit and the virtual carrier sensing unit is determined on a plurality of subchannels both an idle state, and the transceiver by a transceiver in parallel. 此时,虚拟载波侦听单元在用于并行发送的子信道中对需要最长发 In this case, virtual carrier sensing unit subchannels for parallel transmission of the hair most in need of

送时间Tmax的子信道以外的子信道,设定在所述Tmax上相加预定时间Ts而得的时间(Tmax + Ts),以作为发送禁止时间。 Subchannel other than the subchannel transmission time Tmax, the set time Ts obtained by adding a predetermined time (Tmax + Ts) on the Tmax, as the transmission inhibition time.

第四十方式的发明在第三十九方式所述发明的发送方无线站的虚拟载波侦听单元中,当已设定在所述子信道中的发送禁止时间短于(Tmax + Fortieth aspect of the invention, the virtual carrier sense unit sender radio station thirty-ninth embodiment of the invention, when the subchannels has been set in the transmission prohibition time is shorter than (Tmax +

Ts)时,设定(Tmax + Ts)作为新的发送禁止时间。 When Ts), setting (Tmax + Ts) as a new transmission prohibition time.

根据第三十九、第四十方式的发明,即使在除处于收发当中之外的子信道上不能进行接收的情况下,也能够向该子信道设定根据最长收发时间的发送禁止时间,因此能够使虚拟载波侦听正常工作。 According to the invention, thirty-ninth, fortieth aspect, even when the transceiver is in addition to the subchannel can not be performed among the reception, it is possible to set the prohibition time sub-channels according to the transmission time of the longest transceiver, thus enabling virtual carrier sense to work.

附图说明 BRIEF DESCRIPTION

图1是表示本发明第一实施方式的处理步骤的流程图; 图2是表示本发明第一实施方式的操作例的时序图; 图3是表示本发明第二实施方式的处理步骤的流程图; 图4是表示本发明第二实施方式的操作例的时序图; 图5是表示本发明第三实施方式的处理步骤的流程图; 图6是表示本发明第三实施方式的操作例的时序图; 图7是表示本发明第四实施方式的处理步骤的流程图; 图8是表示本发明第四实施方式的操作例的时序图; 图9是表示本发明第五实施方式的处理步骤的流程图; 图IO是表示本发明第五实施方式的操作例的时序图; 图11是表示本发明第六实施方式的处理步骤的流程图; 图12是表示本发明第七实施方式的处理歩骤的流程图; FIG 1 is a flowchart showing a processing procedure of a first embodiment of the present invention; FIG. 2 is a timing chart showing operation of the first embodiment of the present invention; FIG. 3 is a flowchart showing the processing of the second embodiment of the present invention represented by ; FIG. 4 is a timing diagram illustrating operation of the second embodiment of the present invention; FIG. 5 is a flowchart illustrating a processing procedure of the third embodiment of the present invention represented; FIG. 6 is a timing chart showing the operation of the third embodiment of the present invention FIG.; FIG. 7 is a flowchart illustrating a processing procedure of the fourth embodiment of the present invention; FIG. 8 is a timing diagram illustrating operation of the fourth embodiment of the present invention; FIG. 9 shows a fifth embodiment of the processing steps of the present invention. flowchart; Figure IO is a timing diagram illustrating operation of the fifth embodiment of the present invention; FIG. 11 is a flowchart showing the procedure of a sixth embodiment of the present invention represented; FIG. 12 shows a seventh embodiment ho process embodiment of the present invention flowchart step of;

图13是表示本发明第八实施方式的处理步骤的流程图;图14是表示本发明第九实施方式的处理步骤的流程图; FIG 13 is a flowchart illustrating a processing procedure of the eighth embodiment of the present invention; FIG. 14 is a flowchart illustrating a processing procedure of the ninth embodiment of the present invention;

图15是表示本发明第十实施方式的处理步骤的流程图; FIG 15 is a flowchart illustrating a processing procedure of the tenth embodiment of the present invention;

图16是表示本发明第十实施方式的操作例的时序图; FIG 16 is a timing chart showing the operation of the tenth embodiment of the present invention;

图17是表示本发明第十一实施方式的操作例的时序图; FIG 17 is a timing chart showing the operation of an eleventh embodiment of the present invention;

图18是表示本发明第十二实施方式的操作例的时序图; 18 is a timing chart showing the operation of the twelfth embodiment of the present invention;

图19是表示本发明第十三实施方式的操作例的时序图; 19 is a timing chart showing the operation example of the thirteenth embodiment of the present invention;

图20是表示本发明第十四实施方式的处理步骤的流程图; FIG 20 is a flowchart illustrating a processing procedure of a fourteenth embodiment of the present invention;

图21是表示本发明第十四实施方式的操作例的时序图; 21 is a timing chart showing the operation of the fourteenth embodiment of the present invention;

图22是表示本发明第十五实施方式的处理步骤的流程图; FIG 22 is a flowchart showing a processing procedure of a fifteenth embodiment of the present invention;

图23是表示本发明第十五实施方式的操作例的时序图; FIG 23 is a timing chart showing the operation of the fifteenth embodiment of the present invention;

图24是表示本发明第十七实施方式的处理步骤的流程图; FIG 24 is a flowchart illustrating a processing procedure of a seventeenth embodiment of the present invention;

图25是表示本发明第十七实施方式的操作例的时序图; 25 is a timing chart showing operation of a seventeenth embodiment of the present invention;

图26是表示本发明第十八实施方式的处理步骤的流程图; FIG 26 is a flowchart showing a procedure of an eighteenth embodiment of the present invention;

图27是表示本发明第十八实施方式的操作原理的时序图; 27 is a timing chart showing the operation principle of an eighteenth embodiment of the present invention;

图28是表示本发明第十八实施方式的变形例的处理步骤的流程图; FIG 28 is a flowchart illustrating a processing procedure example of modification of the eighteenth embodiment of the present invention;

图29是表示本发明第十八实施方式的变形例的操作原理的时序图; 29 is a timing chart showing an eighteenth embodiment of the present invention, the principle of operation of a modified example of the embodiment;

图30是表示本发明第十九实施方式的处理步骤的流程图; FIG 30 is a flowchart showing a procedure of a nineteenth embodiment of the present invention;

图31是表示本发明第二十实施方式的处理步骤的流程图; FIG 31 is a flowchart illustrating a processing procedure of the twentieth embodiment of the present invention;

图32是表示本发明第二十实施方式的操作例的时序图; FIG 32 is a timing chart showing the operation of the twentieth embodiment of the present invention;

图33是表示本发明第二十一实施方式的处理步骤的流程图; FIG 33 is a flowchart illustrating a processing procedure of a twenty-first embodiment of the present invention;

图34是表示本发明第二十一实施方式的操作例的时序图; 34 is a timing chart showing the operation example of the twenty-first embodiment of the present invention;

图35是表示本发明第二十二实施方式的处理步骤的流程图; FIG 35 is a flowchart illustrating a processing procedure of a twenty-second embodiment of the present invention;

图36是表示本发明第二十二实施方式的操作例的时序图; FIG 36 is a timing chart showing the operation example of the twenty-second embodiment of the present invention;

图37是表示本发明第二十四实施方式的处理步骤的流程图; FIG 37 is a flowchart illustrating a processing procedure of a twenty-fourth embodiment of the present invention;

图38是表示本发明第二十五实施方式的发送方处理步骤的时序图; FIG 38 is a timing chart showing the transmission side of a twenty-fifth embodiment of the present invention, the processing step;

图39是表示本发明第二十五实施方式的接收方处理步骤的流程图; FIG 39 is a flowchart showing the receiver of the twenty-fifth embodiment of the present invention, the processing step;

图40是表示本发明第二十五实施方式的操作例的时序图; FIG 40 is a timing chart showing the operation example of the twenty-fifth embodiment of the present invention;

图41是表示本发明第二十六实施方式的发送方处理步骤的时序图; FIG 41 is a timing chart showing the sender twenty sixth embodiment of the present invention, the processing step;

图42是表示本发明第二十六实施方式的接收方处理步骤的流程图; FIG 42 is a flowchart showing the receiver of the twenty-sixth embodiment of the present invention, the processing step;

图43是表示本发明第二十六实施方式的操作例的时序图; 图44是表示本发明第二十六实施方式的操作例的时序图; 43 is a timing diagram illustrating operation according to the 26th embodiment of the present invention; FIG. 44 is a timing diagram illustrating operation according to the 26th embodiment of the present invention;

图45是示出与本发明第一至第二十六实施方式对应的无线分组通信装置结构例的框图; FIG 45 is a block diagram showing a configuration example of a wireless packet communication apparatus of the first embodiment to the twenty-sixth embodiment of the present invention corresponds to;

图46是表示本发明第二十七实施方式的处理步骤的流程图; 图47是表示本发明第二十七实施方式的操作例的时序图; FIG 46 is a flowchart showing the steps of the twenty-seventh embodiment of the present invention; FIG. 47 is a timing diagram illustrating operation according to a 27th embodiment of the present invention;

图48是示出与本发明第二十七实施方式对应的无线分组通信装置结构例的框图; FIG 48 is a block diagram showing a configuration example of a packet radio communication device and the twenty-seventh embodiment of the present invention corresponding to the embodiment;

图49是用于说明使用两个无线信道的无线分组通信方法的示例图; 图50是用于说明使用两个无线信道的无线分组通信方法中存在的问题的示意图。 FIG 49 is a radio packet communication method using two radio channels for explaining an example of FIG.; FIG. 50 is a schematic view of two radio channels using the wireless packet communication method for describing the problem.

具体实施方式 Detailed ways

[第一实施方式] [First Embodiment]

图1示出了本发明第一实施方式的流程图。 FIG 1 shows a flowchart of a first embodiment of the present invention. 图2示出了本发明第一实施方式的操作例。 Figure 2 illustrates the operation of the first embodiment of the present invention. 这里,无线站1和2之间设有无线信道#1和#2,并假定在定时tl,无线信道弁2被利用根据在此前接收的无线分组设定的NAV 的虚拟载波侦听判定为忙碌状态。 Here, the radio stations 1 and 2 is provided between the wireless channels # 1 and # 2, and assuming the timing tl, 2 Bian radio channel is utilized according to the previous received packet radio NAV set virtual carrier sensing determines that the busy status. 此外,假定无线信道tfl和#2具有相互发生泄漏的关系,并假定如存在这种泄漏就无法接收无线分组。 Further, assume that wireless channels # tfl and 2 have a relationship of mutual leakage, and assuming the presence of such as leakage can not receive the wireless packet.

在图1中,发送方无线站检索空闲状态的无线信道(S001)。 In Figure 1, a radio channel to retrieve the sender radio station in an idle state (S001). 这里, 进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听,并在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the use of physical carrier sensing using the RSSI and the virtual carrier sensing NAV, and was not detected when the determined carrier to the idle state in both assays. 接着,使用空闲状态的无线信道发送无线分组(S002)。 Next, using the idle wireless channel wireless transmission packet (S002). 接着,对于受进行发送的无线信道的泄漏影响的"成对的无线信道",将在发送的无线分组的发送时间上加上预定时间的发送禁止时间设给NAV,结束发送处理(S003)。 Next, the influence by the leakage of radio channel transmitted "paired wireless channel", the predetermined time plus the transmission prohibition on the transmission time of the wireless packet transmission provided to the NAV, finishes transmission processing (S003).

参考图2来具体说明上述发送方无线站的操作例。 Referring specifically to FIG. 2 above-described embodiments the operation of the sender radio station. 在图1中,成对的无线信道是指与从无线站1向无线站2发送无线分组的无线信道1成对的无线信道2。 In Figure 1, a pair of radio channel refers to a radio station to the radio station 2 transmits the radio packet radio channel of the radio channel pairs 1 2. 这可以通过检测从无线信道井1向无线信道井2的泄漏所引起的接收功率来进行识别。 This may be a radio channel to the reception power of 2 wells leak caused from a radio channel to be identified by detecting the well.

在图2中,在定时tl无线信道#1处于空闲状态,无线信道#2处于基于NAV的忙碌状态(发送禁止状态)。 In FIG. 2, the timing tl in the wireless channel # 1 is idle, the wireless channel # 2 is in a busy state based on the NAV (transmission disabled state). 无线站1在定时tl检测到空闲状态的无线信道#1,从而发送以无线站2为目的地的无线分组。 Wireless station 1 at a timing tl detected idle wireless channels # 1, station 2 to transmit a wireless packet to the destination radio. 此时, 由于成对的无线信道#2的NAV短于无线分组的发送时间,将在无线分组的发送时间上加上预定时间(相当于在无线分组发送过程中根据接收无线分组设定的发送禁止时间)而得的发送禁止时间设给无线信道#2的NAV。 At this time, since the pair of the wireless channel # NAV two shorter transmission time in the wireless packet, adding the transmission time of the wireless packet in a predetermined time (corresponding to packet transmission in a wireless transmission process is set based on the received wireless packet inhibition time) obtained by the transmission prohibition period is provided to the wireless channel # NAV 2. 由此,无线站1即使在定时t2不能接收无线信道弁2的无线分组, 也能够设定与无线站2的无线信道# 2的NAV相等的NAV。 Accordingly, even if a radio station in the radio channel can not be received timing t2 Bian wireless packet 2, it is possible to set a radio channel with the radio station # 2 is equal to the NAV of the NAV 2.

[第二实施方式] [Second Embodiment]

图3示出了本发明第二实施方式的流程图。 FIG. 3 shows a flowchart of a second embodiment of the present invention. 图4示出了本发明第二实施方式的操作例。 FIG 4 shows an operation of the second embodiment of the present invention. 这里,设有无线信道#1、 #2、 #3、弁4,并假定在定时tl,无线信道#2和#4被根据在此前接收的无线分组设定的NAV的虚拟载波侦听判定为忙碌状态。 Here, the wireless channel with # 1, # 2, # 3, Bian 4, and assuming the timing tl, the wireless channel # 2 and # 4 are set in accordance with the previous received packet radio NAV as virtual carrier sense determines busy. 此外,假定无线信道井1、 #2、弁3、弁4具有相互发生泄漏的关系,并假定如存在这种泄漏就无法接收无线分组。 Furthermore, the radio channel is assumed that the well 1, # 2, Benten 3, 4 have a relationship Bian leak another, and assuming the presence of such as leakage can not receive radio packets.

此外,下述的实施方式也能够适用于一并使用利用多个无线信道的并行发送和公知的空分复用技术(黒崎外、MIMO于卞氺/W二上0 100Mbit/s ?r実現卞S広帯域移動通信用SDM—COFDM方式(O提案、電子情報通信学会技術研究報告、A • P2001-96, RCS2001-135 (2001-10))的系统中。 In addition, the following embodiments can also be applied to a radio channel used in conjunction with a plurality of parallel transmission and space division multiplexing techniques well-known (Kurosaki outside, in the MIMO Shui Bian / W on the two 0 100Mbit / s? R Minoru now Bian Bands Hiroshima S domain in a mobile communication by way SDM-COFDM (O proposal, IEICE technical report, a • P2001-96, RCS2001-135 (2001-10)) of the system.

首先,检索在定时tl处于空闲状态的无线信道(S101)。 First the radio channel, the search in an idle state at the timing tl (S101). 这里,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),并当在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (detection time of the transmission prohibition), and determined to be idle when the two detection carriers are not detected. 接着,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S102)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S102) data to be transmitted from the packet generation. 接着检测并行发送的无线分组的发送时间中最长的发送时间Tmax (S103)。 Then detects simultaneously transmitted radio packet transmission time of the longest transmission time Tmax (S103). 这里,无线信道弁1和#3处于空闲状态,从而利用无线信道#1和#3进行两个(或者各无线信道的空分复用数的总和)无线分组的并行发送,检测出其中最长的发送时间Tmax (这里为无线信道弁1的发送时间T1)。 Here, the wireless channel # 1 and 3 Bian in an idle state, thereby using the wireless channel # 1 and # 3 for two (or each radio channel space division multiplexing of the total number) of the radio packet transmitted in parallel, where the maximum is detected Tmax of the transmission time (here, the transmission time of the radio channel Bian 1 T1).

接着,对无线信道弁l、 #2、井3、弁4中的每一个进行S104〜S109 的处理。 Next, the radio channel Bian l, # 2, wells 3, 4 Bian processing each of a S104~S109. 首先,检测从无线信道弁i (i为1、 2、 3、 4)发送的无线分组的 First, from the detected radio channel Bian i (i is 1, 2, 3, 4) of the transmitted radio packet

发送时间B (S104)。 Transmission time B (S104). 若由于处于忙碌状态而没有无线分组的发送,则"H 二0 (这里T2 = T4 = 0)。接着,将最长发送时间Tmax和从无线信道#i发送的无线分组的发送时间Ti进行比较(S105)。这里,由于无线信道#1的发送时间Tl最长(Tmax = Tl),并且除了无线信道# 1之外均为Tmax〉Ti,所以以下处理的对象是除无线信道# 1之外的信道。 Because if the busy state without sending a wireless packet, the "H 20 (where T2 = T4 = 0). Next, the longest transmission time Tmax and the transmission packet transmitted from the wireless radio channel #i Ti compared (S105). here, since the transmission time of the wireless channel # 1 is the longest Tl (Tmax = Tl), and in addition to the wireless channel # 1 are Tmax> Ti, so the object is outside the following processing in addition to the wireless channel # 1 Channel.

在本实施方式以及以后的实施方式中,是假定为并行发送而生成的多个无线分组的分组长度不同而进行说明的,但当使分组长度一致地生成并行发送的多个无线分组时,以下处理的对象是除无线信道#1和#3以外的信道(不发送无线分组的无线信道弁2、井4)。 In the present embodiment and the subsequent embodiment, the packet length is assumed that a plurality of parallel transmission of radio packets generated differ will be described, but when the packet length so consistently generate in parallel a plurality of wireless transmission of packets, the following It is the object of processing channel other than the wireless channel # 1 and channel # 3 (not transmitted radio packet radio channel Benten 2, 4 wells). 在下述的其他实施方式中也一样。 Similarly, in other embodiments described below.

对于满足Tmax > Ti的无线信道弁i,检测其NAV中设定的发送禁止时间Tsi (S106)。 For satisfying Tmax> Ti Bian radio channel i, set its NAV detecting transmission prohibition time Tsi (S106). 这里,对于无线信道#2、 #4,检测出Ts2、 Ts4,对于无线信道#3,检测出Ts3 = 0。 Here, for the wireless channel # 2, # 4, detected Ts2, Ts4, for the wireless channel # 3 is detected Ts3 = 0. 接着,对在Tmax上加上预定时间Ts 而得的时间(Tmax + Ts)和己设定的发送禁止时间Tsi进行比较,并且若Tmax + Ts > Tsi,则将Tmax + Ts作为新的发送禁止时间设为NAV, 然后对下一个无线信道进行处理(S107、 S108、 S109)。 Next, transmission prohibition time of a predetermined time Ts obtained by adding the time (Tmax + Ts) in the setting Tsi and hexyl Tmax are compared, and if Tmax + Ts> Tsi, then Tmax + Ts as a new transmission prohibition time set NAV, and a radio channel for the next process (S107, S108, S109). 另外,在不满足Tmax〉Ti的无线信道弁i (这里为#1),或者不满足Tmax + Ts > Tsi的无线信道弁i (这里为#4)的情况下,对该无线信道不进行任何处理,对下一个无线信道进行处理(S105、 S107、 S109)。 Further, not satisfied Tmax> Ti Bian I wireless channel (# 1 here), or does not meet Tmax + Ts> Tsi wireless channel Bian I (here, # 4) of the case, the radio channel without any process, a radio channel for the next process (S105, S107, S109).

由此,对于具有最长的发送时间Tmax的无线信道#1,不进行NAV 设定,对于无线信道#2、 #3,将发送禁止时间(Tmax + Ts)设给NAV,对于无线信道#4,保持NAV的当前的发送禁止时间(Ts4)。 Thus, for a transmission having the longest time Tmax # 1 radio channel, without NAV set for the wireless channel # 2, # 3, the transmission prohibition period (Tmax + Ts) set to the NAV for the wireless channel # 4 , the current transmission prohibition time to maintain the NAV (Ts4). 因此,在下一个定时t2,无线信道#2、 #3、弁4通过利用NAV的虚拟载波侦听而被判定为忙碌状态,从而仅利用无线信道#1发送无线分组。 Thus, in the next timing T2, the wireless channel # 2, # 3, 4 and Bian busy state is determined by using the NAV virtual carrier sensing, thereby transmitting the wireless packet by using only the wireless channel # 1. 并同时进行同样的发送禁止时间的设定。 And at the same time set the same transmission prohibition time.

[第三实施方式] [Third Embodiment]

图5示出了本发明第三实施方式的流程图。 FIG 5 shows a flowchart of a third embodiment of the present invention. 图6示出了本发明第三实施方式的操作例。 FIG 6 shows an operation of the third embodiment of the present invention. 这里,设有无线信道井l、 #2、 #3、 #4、 #5,并假定在定时tl,无线信道弁2和弁5被利用根据在此前接收的无线分组设定 Here, the radio channel is provided with wells l, # 2, # 3, # 4, # 5, and assuming a timing tl, the wireless channel Bian Bian 5 and 2 is utilized in accordance with the previous received packet radio set

的NAV的虚拟载波侦听判定为忙碌状态。 The NAV of the virtual carrier sense judgment is busy. 此外,假定无线信道#1〜#5 具有相互发生泄漏的关系,并假定如存在这种泄漏就无法接收无线分组。 Further, assume that wireless channels # 1 ~ # 5 have a relationship of mutual leakage, and assuming the presence of such as leakage can not receive the wireless packet.

首先,检索在定时tl处于空闲状态的无线信道(S111)。 First the radio channel, the search in an idle state at the timing tl (S111). 这里,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),并在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (detection time of the transmission prohibition), and was not detected when the determined carrier to the idle state in both assays. 接着, 使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S112)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S112) data to be transmitted from the packet generation. 这里,无线信道#1、 #3、 #4处于空闲状态,因此使用无线信道井1、 #3、 #4发送三个(或者各无线信道的空分复用数的总和) 无线分组。 Here, the wireless channels # 1, # 3, # 4 is in an idle state, using 1, # 3, # 4 transmits three (or the sum of the wireless channel of the number of space division multiplex) wireless packet radio channel wells.

接着,对用于发送的每个无线信道弁i (这里是井1、弁3、 #4)进行S113〜S120的处理。 Next, each radio channel for transmission Bian i (here, wells 1, Benten 3, # 4) of the processing S113~S120. 首先,检测从无线信道弁i G是1、 3、 4)发送的无线分组的发送时间Ti (S113)。 First, from the detected radio channel is Bian i G 1, 3, 4) transmission time of the wireless packet transmitted Ti (S113). 接着,对每个受无线信道井i影响的无线信道弁j (这里是邻接信道)进行S114〜S119的处理。 Next, for each radio channel i by j Bian influence the radio channel well (here adjacent channels) is processed S114~S119. 首先,检测从无线信道ftj发送的无线分组的发送时间Tj (S114)。 First, detecting packet transmitted from the wireless radio channel ftj transmission time Tj (S114). 接着对无线信道fti的发送时间Ti和邻接无线信道弁j的每个发送时间Tj进行比较(S115),对于满足Ti 〉 Tj的无线信道弁j来说,由于可在无线信道弁i的发送期间结束发送,因此按照以下所示的步骤(S116〜S118)将发送禁止时间设给NAV。 Next fti radio channel for each transmission time and the transmission time Ti Bian adjacent radio channel j, Tj is compared (S115), the radio channel for satisfying j Bian Ti> Tj is, because the radio channel can be transmitted during the i Bian end of the transmission, so in accordance with the steps shown below (S116~S118) to set the transmission prohibition period NAV. 这里,对于无线信道#1、 #3,无线信道弁2成为上述处理对象, 对于无线信道弁4,无线信道弁3、 #5成为上述处理对象。 Here, the wireless channels # 1, # 3, the radio channel becomes the processing target Bian 2, 4 Bian radio channel for a radio channel Benten 3, # 5 becomes the processing target.

接着,对于满足Ti 〉Tj的无线信道弁j (这里是#2、 #3、 #5),检测被设给NAV的发送禁止时间Tsj (S116)。 Next, satisfy Ti> Tj Bian wireless channel j (here # 2, # 3, # 5), is provided to detect the NAV transmission prohibition time Tsj (S116). 接着,对在Ti上加上预定时间Ts而得的时间(Ti + Ts)和已设定的发送禁止时间Tsj进行比较, 并且若Ti + Ts 〉 Tsj,则将Ti + Ts作为新的发送禁止时间Tsj设给NAV,然后对下一个无线信道进行处理(Sin、 S118、 S119)。 Next, on the Ti plus a predetermined time period (Ti + Ts) Ts obtained by comparing the set and the transmission prohibition time Tsj, and if Ti + Ts> Tsj, then Ti + Ts as a new transmission prohibition Tsj time to set NAV, and a radio channel for the next process (Sin, S118, S119). 另外,在不满足Ti 〉Tj的无线信道弁j (#4),或者不满足Ti + Ts > Tsj的无线信道弁j (这里为弁5)的情况下,对该无线信道不进行任何处理,对下一个无线信道进行处理(S115、 S1H、 S119)。 Further, not satisfied Ti> Tj Bian wireless channel j (# 4), or does not meet Ti + Ts> Tsj Bian wireless channel j (here, Bian 5) of the case, the radio channel without any treatment, processing (S115, S1H, S119) a radio channel to the next.

对要用于发送的无线信道弁i进行以上的处理(S113〜S120)。 I Bian wireless channels to be transmitted for the above processing (S113~S120). 由此,对于无线信道井1、 #4、 #5,不进行NAV设定。 Thereby, the radio channel for the well 1, # 4, # 5, does not perform NAV setting. 对于无线信道# For the wireless channel #

2,将根据无线信道#1确定的发送禁止时间(Tl + Ts)和根据无线信道弁3确定的发送禁止时间(T3 + Ts)中较长的(Tl十Ts)设给NAV。 2, the wireless channel # 1 according to the determined transmission prohibition time (Tl + Ts) and the radio channel according to the transmission inhibition time is determined longer Benten 3 (T3 + Ts) of (Tl ten Ts) is provided to the NAV. 对于无线信道#3,将根据无线信道弁4确定的发送禁止时间(T4 + Ts)设给NAV。 For the radio channel # 3, NAV will be set to the determined radio channel 4 Benten transmission prohibition period (T4 + Ts). 因此,在下一个定时t2,无线信道弁2、 #3、 #5通过利用NAV的虚拟载波侦听被判定为忙碌状态,从而利用无线信道弁i和#4发送无线分组。 Thus, in the next timing T2, the radio channel Bian 2, # 3, # 5 is determined by using the virtual carrier sensing NAV busy state, so that the use of a radio channel and Bian i # 4 transmit the radio packets. 并同时进行同样的发送禁止时间的设定。 And at the same time set the same transmission prohibition time. [第四实施方式] [Fourth Embodiment]

第二实施方式是以需要并行发送的无线分组的最长发送时间Tmax的无线信道为基准,对其他所有无线信道设定发送禁止时间(Tmax + Ts) 的。 The second embodiment of a wireless packet is transmitted in parallel requires the longest time Tmax transmission radio channel as a reference for all other radio channel configuration transmission prohibition time (Tmax + Ts) of. 但如果已设定的发送禁止时间(Tsi)大于Tmax + Ts,则保持不变。 However, if the set transmission inhibition time (of Tsi) is larger than Tmax + Ts, it remains unchanged. 这种方法假设了由于受发送时间最长的无线信道的泄漏影响而不能进行接收,进而不能设定新的发送禁止时间的情况,并对其他无线信道一样设定发送禁止时间。 This approach assumes that the longest transmission time due to the wireless channel leakage effects can not receive, then send the case can not set a new time of prohibition, and other wireless channel as the set transmission prohibition time.

第四实施方式的特点是,代替在第二实施方式中将发送时间最长的无线信道以外的所有无线信道作为对象的方法,通过检测接收功率来选择实际受泄漏影响的无线信道。 Characteristics of the fourth embodiment, instead of all the radio channels as a target transmission methods other than the longest radio channel in the second embodiment, the actual radio channel selected by the influence of leakage by detecting the received power.

图7示出了本发明第四实施方式的流程图。 FIG 7 shows a flowchart of a fourth embodiment of the present invention. 图8示出了本发明第四实施方式的操作例。 FIG 8 shows an operation of the fourth embodiment of the present invention. 这里,设有无线信道井1、 #2、 #3、 #4、 #5,并假定在定时tl,无线信道井2和#5被利用根据在此前接收的无线分组设定的NAV的虚拟载波侦听而判定为忙碌状态。 Here, the radio channel with the well 1, # 2, # 3, # 4, # 5, and assuming a timing tl, the wireless channel # 2 and the well 5 are utilized in accordance with the virtual carrier previously received packet radio set the NAV while listening to the busy state is determined.

首先,检索在定时tl处于空闲状态的无线信道(S101)。 First the radio channel, the search in an idle state at the timing tl (S101). 这里,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),并当在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (detection time of the transmission prohibition), and determined to be idle when the two detection carriers are not detected. 接着,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S102)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S102) data to be transmitted from the packet generation. 接着检测并行发送的无线分组的发送时间中最长的发送时间Tmax (S103)。 Then detects simultaneously transmitted radio packet transmission time of the longest transmission time Tmax (S103). 这里,无线信道# 1处于空闲状态,从而利用无线信道#1、 #3、 #4并行发送三个(或者各无线信道的空分多址复用数的总和)无线分组,在该情况下检测出其中最长的发送时间Tmax (这里是无线信道#1的发送时间T1)。 Here, the wireless channel # 1 is idle, so the use of wireless channels # 1, # 3, # 4 three parallel transmission (or each spatial division multiple access radio channel the total number of multiplexing) wireless packet is detected in this case wherein the longest time Tmax of the transmission (here a wireless channel # 1 is the transmission time T1).

接着,对无线信道#1〜#5中的每一个进行S104〜S109的处理。 Next, each of the wireless channels # 1 ~ # 5 S104~S109 of processing. 首先,检测从无线信道fti (i是1〜5)发送的无线分组的发送时间Ti (S104)。 First, detection (a i 1~5) from the transmission time of the wireless packet radio channel fti transmitted Ti (S104). 接着,比较最长的发送时间Tmax和从无线信道弁i发送的无线分组的发送时间Ti (S105)。 Next, compare the transmission time and the longest time Tmax transmission packet transmitted from the wireless radio channel Bian i Ti (S105). 这里,由于无线信道#1的发送时间Tl最长(Tmax二Tl),并且除了无线信道# 1之外均为Tmax > Ti,所以以下处理的对象是除无线信道# 1之外的信道。 Here, since the transmission time of the wireless channel # 1 is the longest Tl (Tmax two Tl), and in addition to the wireless channel # 1 are Tmax> Ti, so the object of the process is a channel other than the wireless channel # 1.

在满足Tmax > Ti的无线信道弁i中,检测不进行发送时的接收功率Pi,并将其与预定的阈值Pth进行比较(S121、 S122)。 Satisfying Tmax> Ti Bian wireless channel i, the detection is not performed when the received power Pi sent, and compares (S121, S122) with a predetermined threshold value Pth. 若该接收功率Pi 大于等于阈值Pth,则认为受到泄漏影响,从而按照以下的步骤(S106〜 If the received power is equal to the threshold value Pth is greater than Pi, subject to leakage effects is considered to follow the following steps (S106~

5108) 将发送禁止时间设给NAV。 5108) prohibits the sending time is set to NAV. 这里,由于来自无线信道井1、 #3的泄漏,无线信道#2的接收功率P2大于等于Pth,由于来自无线信道弁4 的泄漏,无线信道#3、弁5的接收功率P2、 P5大于等于Pth,而无线信道#1、井4的接收功率P1、 P4不大于等于Pth。 Here, leakage from the wireless channel since the well 1, # 3, # wireless channel reception power P2 2 Pth is greater than or equal, since the wireless channel from leaking Bian 4, the radio channel # 3, the received power P2 5 of Bian, P5 greater than or equal PTH, and the wireless channel # 1, the reception power P1 of the well 4, P4 is not greater than equal to Pth. 从而,给无线信道#2、 # 3、 #5设定发送禁止时间。 Thus, to the wireless channels # 2, # 3, # 5 to set the transmission prohibition time.

针对无线信道井i (i是2、 3、 5),检测被设给NAV的发送禁止时间Tsi (S106)。 Well wireless channel i (i is 2, 3, 5), is provided to detect the NAV transmission prohibition time Tsi (S106). 这里,对于无线信道弁2、 #5,检测出Ts2、 Ts5,接着, 对在Tmax上加上预定时间Ts而得的时间(Tmax + Ts)和已设定的发送禁止时间Tsi进行比较,并且若Tmax + Ts > Tsi,则将Tmax + Ts作为新的发送禁止时间设给NAV,然后对下一个无线信道进行处理(S107、 S108、 S109)。 Here, the radio channel Bian 2, # 5, detected Ts2, Ts5, and then, adding a predetermined time to the time Tmax (Tmax + Ts) Ts obtained by comparing the set and the transmission prohibition time of Tsi, and If Tmax + Ts> Tsi, then Tmax + Ts as a new transmission prohibition time is set to the NAV, and a radio channel for the next process (S107, S108, S109). 另外,在不满足Tmax〉Ti的无线信道弁i (这里是# 1),或者接收功率Pi小于Pth的无线信道弁i (这里是#4),或者不满足Tmax + Ts〉Tsi的无线信道弁i (这里是弁5)的情况下,对该无线信道不进行任何处理,对下一个无线信道进行处理(S106、 S122、 S107、 Further, not satisfied Tmax> Ti Bian I wireless channel (# 1 here), or receive a wireless channel power Pi smaller than Pth Bian I (here # 4), or does not meet Tmax + Ts> Tsi radio channel Benten case I (Bian here 5) of the radio channel without any processing, a radio channel to the next processing (S106, S122, S107,

5109) 。 5109).

由此,对于具有最长发送时间Tmax的无线信道#1以及没有泄漏影响的无线信道#4,不进行NAV设定,对于无线信道#2、 #3,将发送禁止时间(Tmax + Ts)设给NAV,对于无线信道井5,保持NAV当前的发送禁止时间(Ts5)。 Accordingly, for the wireless channel # 1 and 4 without leakage effect with the longest transmission time of the radio channel # Tmax, without NAV set for the wireless channel # 2, # 3, the transmission prohibition period (Tmax + Ts) provided NAV to, wireless channels for the well 5, to maintain the current NAV transmission prohibition time (Ts5). 因此,在下一个定时t2,无线信道#2、 #3、 #5通过利用NAV的虚拟载波侦听而被判定为忙碌状态,从而利用无线信道井1 Thus, in the next timing T2, the wireless channel # 2, # 3, # 5 by using the virtual carrier sensing NAV is determined as a busy state, whereby the radio channel using the well 1

和#4发送无线分组。 # 4 and transmit wireless packets. 并同时进行同样的发送禁止时间的设定。 And at the same time set the same transmission prohibition time. [第五实施方式] [Fifth Embodiment]

第三实施方式是预先确定受用于发送的无线信道tti的泄漏影响的无线信道ttj (例如邻接信道),并对此无线信道设定发送禁止时间(Ti + The third embodiment is determined in advance by the leakage effect tti radio channel for transmission of a radio channel tTJ (e.g. adjacent channel), and this radio channel transmission prohibition set time (Ti +

Ts)的。 Ts) of. 对于受多个无线信道的影响的无线信道弁j,设定各个发送禁止时间中的最长的发送禁止时间,但如果已设定的发送禁止时间Tsj大于Ti + Ts,则保持不变。 Bian radio channel for receiving a plurality of radio channels affected j is set up to the respective transmission prohibition time of the transmission prohibition period, but if the transmission has been set prohibition time Tsj greater than Ti + Ts, remains unchanged. 这种方法通过预先确定受泄漏影响的无线信道,能够避免对不受泄漏影响的无线信道也一样设定发送禁止时间。 By this method a predetermined radio channel affected by the leak, the leak is not possible to avoid the influence of radio channel set transmission prohibition same time.

第五实施方式的特点是,代替在第三实施方式中假定受泄漏影响的无线信道,并将所述假定的所有无线信道作为对象的方法,在预定的无线信道中检测接收功率,从而选择实际受泄漏影响的无线信道。 Characteristics of the fifth embodiment, instead of assuming the radio channel affected by the leak in the third embodiment, all of the methods and the radio channel is assumed as an object in a predetermined radio channel reception power is detected, thereby selecting the actual subject to leakage effects of the wireless channel.

图9示出了本发明第五实施方式的流程图。 Figure 9 shows a flowchart of a fifth embodiment of the present invention. 图IO示出了本发明第五实施方式的操作例。 FIG IO shows an operation of the fifth embodiment of the present invention. 这里,设有无线信道#1、 #2、 #3、 #4、 #5,并假定在定时tl,无线信道#2和#5被利用根据在此前接收的无线分组设定的NAV的虚拟载波侦听而判定为忙碌状态。 Here, the wireless channel with # 1, # 2, # 3, # 4, # 5, and assuming a timing tl, the wireless channel # 2 and # 5 are utilized in accordance with the previous received packet radio NAV set virtual carrier while listening to the busy state is determined. 此外,假定无线信道#1〜 #5仅在邻接信道之间发生泄漏。 Further, assume that wireless channels # 1 ~ # 5 leak occurs only between adjacent channels.

首先,检索在定时tl处于空闲状态的无线信道(S111)。 First the radio channel, the search in an idle state at the timing tl (S111). 这里,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),并当在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (detection time of the transmission prohibition), and determined to be idle when the two detection carriers are not detected. 接着,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S112)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S112) data to be transmitted from the packet generation. 这里,无线信道弁1、弁3、弁4处于空闲状态,因此使用无线信道#1、 #3、 #4发送三个(或者各无线信道的空分多址复用数的总和)无线分组。 Here, a radio channel Bian, Benten 3, Bian 4 in an idle state, the use of wireless channels # 1, # 3, # 4 transmits three (or each spatial division multiple access radio channel the total number of multiplexing) wireless packet.

接着,对用于发送的每个无线信道弁i (这里是#1、 #3、 #4)进行S113〜S120的处理。 Next, each radio channel for transmission Bian i (here, # 1, # 3, # 4) of the processing S113~S120. 首先,检测从无线信道tti (i是1、 3、 4)发送的无线分组的发送时间Ti (S113)。 First, from the detected radio channel tti (i is 1, 3, 4) transmission time of the wireless packet transmitted Ti (S113). 接着,对每个受无线信道弁i影响的无线信道刊(这里是邻接信道)进行S114〜S119的处理。 Next, each radio channel for a radio channel by the TV impact Bian i (here adjacent channels) is processed S114~S119. 首先,检测从无线信道井j发送的无线分组的发送时间Tj (S114)。 First, detecting packet transmitted from the wireless radio channel transmission time well j Tj (S114). 接着对无线信道弁i的发送时间Ti和邻接无线信道弁j的每个发送时间Tj进行比较(S115),对于满足Ti > Tj的无线信道Wj来说,由于可在无线信道tti的发送期间结束 Next, the transmission time of the radio channel for each transmission time i Bian Ti and Tj of adjacent radio channel j Bian compared (S115), to satisfy Ti> Tj Wj radio channel, since the transmission period may end in the radio channel tti

发送,因此按照以下的步骤(S121〜S128)将发送禁止时间设给NAV。 Transmitting, so the following procedure (S121~S128) to set the transmission prohibition period NAV. 这里,对于无线信道井1、 #3,无线信道弁2成为上述处理对象,对于无线信道弁4,无线信道弁3、弁5成为上述处理对象。 Here, the radio channel for the well 1, # 3, the radio channel becomes the processing target Bian 2, 4 Bian radio channel for a radio channel 3 Bian, Bian 5 becomes the processing target.

接着,对于满足Ti 〉Tj的无线信道弁j (这里是#2、 #3、 #5),检测不进行发送时的接收功率Pi,并将其与预定的阈值Pth进行比较 Next, satisfy Ti> Tj Bian wireless channel j (here # 2, # 3, # 5), the detection is not performed when the transmission power Pi received, and compared with a predetermined threshold value Pth

(S121、 S122)。 (S121, S122). 若该接收功率Pi大于等于阈值Pth,则认为受到泄漏影响,从而按照以下的步骤(S116〜S118)将发送禁止时间设给NAV。 If the received power is equal to the threshold value Pth is greater than Pi, subject to leakage effects is considered to follow the following steps (S116~S118) to set the transmission prohibition period NAV. 这里,由于来自无线信道#1、 #3的泄漏,无线信道#2的接收功率P2大于等于Pth,由于来自无线信道井4的泄漏,无线信道#3、 #5的接收功率P2、 P5大于等于Pth,而无线信道#1、弁4的接收功率P1、 P4不大于等于Pth。 Here, since the wireless channel from the # 1, # 3 of the leakage, the wireless channel # reception power Pth is greater than or equal P2 2, since the leakage of the radio channel from the well 4, the radio channel # 3, the received power P2 # 5, P5 greater than or equal PTH, and the wireless channel # 1, the reception power P1 4 is Bian, P4 is not greater than equal to Pth. 从而,给无线信道#2、 #3、 #5设定发送禁止时间。 Thus, to the wireless channels # 2, # 3, # 5 to set the transmission prohibition time.

针对无线信道弁i (i是2、 3、 5),检测被设给NAV的发送禁止时间Tsj (S116)。 Bian wireless channel i (i is 2, 3, 5), is provided to detect the NAV transmission prohibition time Tsj (S116). 接着,对在Ti上加上预定时间Ts而得的时间(Ti + Ts) 和已设定的发送禁止时间Tsj进行比较,并且若Ti + Ts > Tsj,则将+ Ts作为新的发送禁止时间Tsj设给NAV,然后对下一个无线信道进行处理 Next, on the Ti plus a predetermined time period (Ti + Ts) obtained by comparing and Ts of the set transmission prohibition time Tsj, and if Ti + Ts> Tsj, then + Ts as a new transmission prohibition time Tsj to set NAV, and then processing the next radio channel

(Sin、 S118、 S119)。 (Sin, S118, S119). 另外,在不满足Ti 〉Tj的无线信道ftj (这里为#4),或者接收功率Pi小于Pth的无线信道弁i,或者不满足Ti + Ts > Tsj的无线信道井j (这里为#5)的情况下,对该无线信道不进行任何处理,对下一个无线信道进行处理(S115、 S122、 S117、 S119)。 Further, not satisfied Ti> Tj FTJ radio channel (here, # 4), or receive power Pi smaller than Pth Benten radio channel i, is not satisfied or Ti + Ts> Tsj wireless channel well j (here, # 5) in the case where, without any processing of the radio channel, a radio channel to the next process (S115, S122, S117, S119).

对要用于发送的全部无线信道弁i进行以上的处理(S113〜S120)。 For all radio channels to be used for transmitting Bian i above processing (S113~S120). 由此,对无线信道#1、 #4、井5不进行NAV设定。 Thereby, wireless channels # 1, # 4, 5 wells without NAV setting. 对于无线信道弁2, 将根据无线信道#1确定的发送禁止时间(Tl + Ts)和根据无线信道弁3 确定的发送禁止时间(T3 + Ts)中较长的(Tl + Ts)设给NAV。 For Bian radio channel 2, and the longer (Tl + Ts) set in accordance with the determined radio channel 3 Benten transmission prohibition time (T3 + Ts) wireless channel # 1 according to the determined transmission prohibition time (Tl + Ts) to NAV . 对于无线信道#3,在该发送之后将根据无线信道#4确定的发送禁止时间(T4 十Ts)设给NAV。 For the radio channel # 3, after the transmission time of the wireless channel according to transmission prohibition determination # 4 (T4 ten Ts) is provided to the NAV. 因此,在下一个定时t2,无线信道#2、 #3、 #5通过利用NAV的虚拟载波侦听而被判定为忙碌状态,从而利用无线信道# 1和井4发送无线分组。 Thus, in the next timing T2, the wireless channel # 2, # 3, # 5 by using the virtual carrier sensing NAV is determined as a busy state, thereby transmitting the wireless packet using the wireless channel # 1 and 4 wells. 并同时进行同样的发送禁止时间的设定。 And at the same time set the same transmission prohibition time. [第六实施方式] [Sixth Embodiment]

对于如下所示的第六至第九实施方式,在第二至第五实施方式中添加了步骤(S131),该步骤用于通过检测所接收无线分组的错误来确定泄漏影响。 For the sixth to ninth embodiments shown below, the second to fifth embodiments described above is added in step (S131), the step of error for the received radio packet is determined by detecting leakage effects.

图11示出了本发明第六实施方式的流程图。 FIG 11 shows a flowchart of a sixth embodiment of the present invention. 本实施方式的特点是, Feature of this embodiment is

在第二实施方式的满足Tma)OTi的无线信道弁i中(S105),校验所接收无线分组是否有错误(S131),并且若有错误就认为受到泄漏影响,从而按照以下的步骤(S106〜S108)将发送禁止时间设给NAV。 In the second embodiment satisfies Tma) OTi Bian wireless channel i in (S105), checking whether the received radio packet has an error (S131), and if leakage effects be considered an error, so that by the following steps (S106 ~S108) will be set up to send prohibition time NAV. 在图4的例子中,无线信道#2、 #3、 #4不立刻进入发送禁止时间的设定,而是进入步骤(S106),针对接收的无线分组有错误的无线信道,进行被设给NAV的发送禁止时间Tsi的检测。 In the example of Figure 4, the wireless channel # 2, # 3, # 4 does not immediately enter the transmission prohibition setting time, it proceeds to step (S106), the error packet to a radio receiving a radio channel, and is set to be NAV transmission prohibition time Tsi detected. 其他步骤与第二实施方式相同。 The other steps are the same as the second embodiment. [第七实施方式] [Seventh Embodiment]

图12示出了本发明第七实施方式的流程图。 FIG 12 shows a flowchart of a seventh embodiment of the present invention. 本实施方式的特点是, 在第三实施方式的满足Ti〉Tj的无线信道弁j中(S115),校验所接收无线分组是否有错误(S131),并且若有错误就认为受到泄漏影响,从而按照以下的步骤(S116〜S118)将发送禁止时间设给NAV。 Features of the present embodiment, the wireless packet received in the third embodiment satisfies Ti> Tj Bian radio channel j in (S115), checks whether there is an error (S131), and if leakage effects be considered an error, so that the following procedure (S116~S118) to set the transmission prohibition period NAV. 在图6的例子中,无线信道弁2、 #3、 #5不立刻进入发送禁止时间的设定,而是进入步骤(S116),针对接收的无线分组有错误的无线信道,进行被设给NAV的发送禁止时间Tsi的检测。 In the example of FIG. 6, the radio channel Bian 2, # 3, # 5 does not immediately enter the transmission prohibition setting time, it proceeds to step (S116), the error packet to a radio receiving a radio channel, and is set to be NAV transmission prohibition time Tsi detected. 其他步骤与第三实施方式相同。 The other steps of the third embodiment.

[第八实施方式] [Eighth Embodiment]

图13示出了本发明第八实施方式的流程图。 FIG 13 shows a flowchart of an eighth embodiment of the present invention. 本实施方式的特点是, 在第四实施方式的满足Tmax 〉 Ti且Pi > Pth的无线信道弁i中(S105, S121、 S122),校验所接收无线分组是否有错误(SB1),若有错误则认为受到泄漏影响,从而按照以下的步骤(S106〜S108)将发送禁止时间设给NAV。 Characteristics of the present embodiment, in the fourth embodiment of satisfying Tmax> Ti Benten radio channel and Pi> Pth in the i (S105, S121, S122), checking whether the received radio packets with errors (SB1), if error is considered by the leakage effects, in order to follow the following steps (S106~S108) to send the ban time is set to NAV. 在图8的例子中,无线信道弁2、 #3、弁5不立刻进入发送禁止时间的设定,而是进入步骤(S106),针对接收的无线分组有错误的无线信道,进行被设给NAV的发送禁止时间Tsi的检测。 In the example of FIG. 8, a radio channel Bian 2, # 3, 5 Bian not immediately enter the transmission prohibition setting time, it proceeds to step (S106), the error packet to a radio receiving a radio channel, and is set to be NAV transmission prohibition time Tsi detected. 其他步骤与第三实施方式相同。 The other steps of the third embodiment.

在本实施方式中,对于发送时间Ti短于Tmax (包括Ti = 0),接收功率Pi大于等于Pth,所接收无线分组有错误,并且发送禁止时间Tsi小 In the present embodiment, the transmission time for a shorter Tmax of Ti (including Ti = 0), the received power Pi Pth is greater than or equal, an error of the received radio packet, and transmission prohibition time Tsi small

T- Tmax + Ts (包括Tsi = 0)的无线信道tfi,视为受来自发送时间Tmax的无线信道的泄漏影响,从而设定发送禁止时间Tmax + Ts。 T- Tmax + Ts (including Tsi = 0) TFI radio channel, a radio channel considered by the leakage effect from the transmission time Tmax, thereby setting the transmission prohibition time Tmax + Ts. [第九实施方式] [Ninth Embodiment]

图14示出了本发明第九实施方式的流程图。 FIG 14 shows a flowchart of a ninth embodiment of the present invention. 本实施方式的特点是, 在第五实施方式的满足Ti 〉 Tj且Pi > Pth的无线信道弁j中(S115、 S121、 S122),校验所接收无线分组是否有错误(S131),若有错误则认为受到泄漏影响,从而按照以下的步骤(S116〜S118)将发送禁止时间设给NAV。 Characteristics of the present embodiment, in the fifth embodiment satisfies Ti> Tj and Bian radio channel Pi> Pth in the j (S115, S121, S122), checking whether the received radio packet has an error (S131), if error is considered by the leakage effects, in order to follow the following steps (S116~S118) to send the ban time is set to NAV. 在图10的例子中,无线信道#2、 #3、 #5不立刻进入发送禁止时间的设定,而是进入步骤(S116),针对接收的无线分组有错误的无线信道,进行被设给NAV的发送禁止时间Tsi的检测。 In the example of FIG. 10, the wireless channel # 2, # 3, # 5 does not immediately enter the transmission prohibition setting time, it proceeds to step (S116), the error packet to a radio receiving a radio channel, and is set to be NAV transmission prohibition time Tsi detected. 其他步骤与第五实施方式相同。 The other steps of the fifth embodiment.

在本实施方式中,对于受无线信道弁i影响的无线信道井j中发送时间Tj短于Ti (包括Tj二0),接收功率Pj大于等于Pth,所接收无线分组有错误,并且发送禁止时间Tsj小于Ti + Ts (包括Tsj = 0)的无线信道弁j,视为受来自无线信道弁i的泄漏影响,从而设定发送禁止时间Ti + Ts。 In the present embodiment, the radio channel for a radio channel by Bian i j wells affect the transmission time Tj is shorter than the Ti (including Tj 20), the received power Pj Pth is greater than or equal, an error of the received radio packet, and transmission prohibition time Tsj less than Ti + Ts (including Tsj = 0) of the radio channel Bian j, seen as limited by the leakage from the influence of the wireless channel i Bian, so as to set the transmission prohibition time Ti + Ts.

[第十实施方式] [Tenth Embodiment]

在第二实施方式中,通过假定从无线信道井1有泄漏并给无线信道#2 和#3的NAV设定发送禁止时间(Tmax + Ts),能够避免发生如图50 所示的无法接收无线分组并无法进行NAV设定的状况。 In the second embodiment, by assuming that the wireless channel from the well 1 and the leakage to the wireless channels # 2 and # 3 are set NAV transmission prohibition time (Tmax + Ts), can be avoided as shown in FIG. 50 can not receive the radio NAV grouped and can not set conditions. 但是,在设定NAV的无线信道弁2、 #3以及已设定NAV的无线信道#4中,并不是完全无法接收无线分组。 However, in setting NAV radio channel Benten 2, # 3 and # has been set NAV radio channel 4, it is not entirely unable to receive packet radio. 若在发送禁止时间的设定当中无线分组被顺利接收,则可以删除当前的发送禁止时间,并根据其报头中记载的占空时间来更新发送禁止时间。 If the packet is successfully received at the radio transmission prohibition time is set among the transmission prohibition you can delete the current time, and updates the transmission prohibition time based on the duty time in its header described. 本实施方式的特点在于,在无线分组被顺利接收的无线信道中进行发送禁止时间的删除和更新。 Characteristics of the present embodiment is, transmission prohibition time of deletion and update the packet was successfully received by the wireless radio channel.

图15示出了本发明第十实施方式的流程图。 FIG 15 shows a flowchart of a tenth embodiment of the present invention. 图16示出了本发明第十实施方式的操作例。 FIG 16 shows an operation of the tenth embodiment of the present invention. 这里,假定通过图3所示的第二实施方式的处理,在时刻tl,如图4所示那样对无线信道#2、 #3、 #4、 #5进行NAV设定。 Here, assuming that the processing according to the second embodiment shown by FIG. 3, at time tl, as shown for the wireless channel # 2, # 3, # 4, # 5 to set NAV in Fig.

各无线信道在没有无线分组接收的空闲中或者在检索空闲状态无线信 Each idle wireless channels in a wireless packet is not received or retrieved idle wireless channel

道的过程中,当接收到从其他无线站发送的无线分组时进行其接收处理 Process tract, for which reception process when receiving a wireless packet transmitted from the other radio station

(S201、 S202)。 (S201, S202). 在接收处理中,通过CRC检验进行检错,并在顺利接收的无线分组当中选择发给本站的数据分组。 In the reception processing, the error detection by the CRC check, and selects the data packets sent to the radio station in a packet among the received successfully. 这里,在接收了无线分组的无线信道#2〜#4中,假设通过无线信道#2、弁4顺利接收了发给本站的无线分组。 Here, when receiving a wireless packet radio channel # 2 ~ # 4, it is assumed by the wireless channel # 2, 4 Bian successfully received the packet sent to the radio station.

在无线信道弁i (这里是#2、 #4)中,检测该无线信道中有没有设定发送禁止时间(S203),并且当存在设定时删除该发送禁止时间(重置为0) (S204)。 I Bian radio channel (here # 2, # 4), detecting the wireless channel has not set the transmission inhibition time (S203), and deletes the transmission prohibition period (reset to 0) when there is a setting ( S204). 接着,检测无线分组的报头中是否有表示占空时间的字段(S205 ),当设有占空时间时将该值作为发送禁止时间设给NAV (S206),然后对下一个无线信道进行处理(S207)。 Next, whether a field indicating an empty account time (S205), the time when the duty value is provided as the transmission prohibition time is set to the NAV (S206), then the next process of detecting a radio channel in the radio packet header ( S207). 这里,由于接收了发给本站的无线分组的无线信道#2、 #4中分别设有发送禁止时间,并且无线信道井2的无线分组的报头中没有设定占空时间,所以对无线信道井2 只进行发送禁止时间的删除,对无线信道井4进行发送禁止时间的更新。 Here, since the reception of the wireless channel # 2, # 4 is sent to the wireless station packet transmission prohibition time are provided, and a wireless packet radio channel well 2 is not set in the header of the duty time, the radio channel wELL 2 delete send prohibition time, the radio channel 4 wells to be updated send prohibition time.

这样,在设定NAV的无线信道#2、 #3以及已设定NAV的无线信道#4中,当顺利接收了无线分组时可删除当前的发送禁止时间,进而还可以根据其报头中记载的占空时间来更新发送禁止时间。 Thus, the NAV is set in the wireless channel # 2, # 3, and the NAV is set wireless channel # 4, when a packet is received successfully delete the current radio transmission prohibition period, and may further described in accordance with its header duty time to update the transmission prohibition time. 因此,在图16 所示的定时t2,无线信道#3、 #4通过利用NAV的虚拟载波侦听而被判定为忙碌状态,从而利用无线信道#1、 #2进行无线分组的并行发送。 Thus, at the timing t2 shown in FIG. 16, the radio channel # 3, # 4 by using the virtual carrier sensing NAV it is determined as a busy state, so that the use of wireless channels # 1, # 2 transmits a radio packet in parallel. 并同时进行同样的发送禁止时间的设定。 And at the same time set the same transmission prohibition time. [第十一实施方式] [Eleventh Embodiment]

在图5和图6所示的第三实施方式中也一样,在设定NAV的无线信道#2、 #3以及己设定NAV的无线信道弁5中,当顺利接收了无线分组时可删除当前的发送禁止时间,进而可根据其报头中记载的占空时间来更新发送禁止时间。 The third embodiment as shown in FIG. 5 and also FIG. 6, the NAV is set in the wireless channel # 2, # 3, and 5 have Bian radio channel set the NAV, when successfully receiving the packet radio deletable the current transmission prohibition period, and thus the transmission prohibition time can be updated in accordance with a duty time in its header described.

图17示出了基于如下步骤的操作例,该步骤指在第三实施方式(图5、图6)中,当顺利接收了无线分组时删除及更新发送禁止时间。 FIG 17 illustrates the operation of the embodiment is based on the step, this step refers to the third embodiment (FIG. 5, FIG. 6), when successfully receiving the delete, and update packet radio transmission prohibition time. 这里, 由于接收了发给本站的无线分组的无线信道#2、 #5中分别设有发送禁止时间,并且无线信道弁2的无线分组的报头中没有设定占空时间,所以对无线信道#2只进行发送禁止时间的删除,对无线信道#5进行发送禁止 Here, since the reception of the wireless channel # 2, packet # 5 sent to the radio station are provided in the transmission prohibition period, and a wireless packet radio channel Bian header 2 is not set the duty time, the radio channel # 2 delete transmission prohibition time to transmit prohibit wireless channel # 5

吋间的更新。 Update between inches. 因此,在下一个定时t2,无线信道#3、 #5通过利用NAV 的虚拟载波侦听而被判定为忙碌状态,从而可利用无线信道#1、弁2、 # 4来进行无线分组的并行发送。 Thus, in the next timing T2, the radio channel # 3, # 5 is determined as busy by virtual carrier sensing using the NAV, thereby the wireless channel # 1, Bian 2, # 4 for parallel transmission using the wireless packet. [第十二实施方式] [Twelfth Embodiment]

在图7和图8所示的第四实施方式中也一样,在设定NAV的无线信道#2、 #3以及已设定NAV的无线信道#5中,当顺利接收了无线分组时可删除当前的发送禁止时间,进而可根据其报头中记载的占空时间来更新发送禁止时间。 Similarly, in the fourth embodiment shown in FIGS. 7 and 8, the wireless channel # 2, # 3 and # 5 is a radio channel set NAV setting the NAV, when successfully receiving the packet radio deletable the current transmission prohibition period, and thus the transmission prohibition time can be updated in accordance with a duty time in its header described.

图18示出了基于如下步骤的操作例,该步骤指在第四实施方式(图7、图8)中,当顺利接收了无线分组时删除及更新发送禁止时间。 FIG 18 shows an operation of the embodiment is based on the step, this step refers to the fourth embodiment (FIG. 7, FIG. 8), when successfully receiving the delete, and update packet radio transmission prohibition time. 这里, 由于对接收了发给本站的无线分组的无线信道#2、 #5分别设定了发送禁止时间,并且无线信道#2的无线分组的报头中没有设定占空时间,所以对无线信道#2只进行发送禁止时间的删除,对无线信道#5进行发送禁止时间的更新。 Here, since the received packet is sent to the radio station of the wireless channel # 2, # 5 are respectively set transmission inhibition time, and wireless packet header of the wireless channel # 2 is not set the duty time, the radio channel # 2 were deleted send prohibition time of the wireless channel # 5 updated send prohibition time. 因此,在下一个定时t2,无线信道井3、弁5通过利用NAV的虚拟载波侦听而被判定为忙碌状态,从而可利用无线信道#1、 # 2、 #4来进行无线分组的并行发送。 Thus, in the next timing T2, the radio channel 3 wells, Bian 5 by using the virtual carrier sensing NAV is determined as a busy state, thereby using wireless channels # 1, # 2, # 4 to the wireless packet transmitted in parallel.

[第十三实施方式] [Thirteenth Embodiment]

在图9和图10所示的第五实施方式中也一样,在设定NAV的无线信道弁2、 #3以及己设定NAV的无线信道#5中,当顺利接收了无线分组时可删除当前的发送禁止时间,进而可根据其报头中记载的占空时间来更新发送禁止时间。 FIGS. 9 and 10 in the fifth embodiment, too, as shown in the radio channel set NAV Benten 2, # 3 and # 5 had the radio channel setting the NAV, when successfully receiving the packet radio deletable the current transmission prohibition period, and thus the transmission prohibition time can be updated in accordance with a duty time in its header described.

图19示出了基于如下步骤的操作例,该步骤指在第四实施方式(图9、图10)中,当顺利接收了无线分组时删除及更新发送禁止时间。 FIG 19 shows an operation of the embodiment is based on the step, this step refers to the fourth embodiment (FIG. 9, FIG. 10), when successfully receiving the delete, and update packet radio transmission prohibition time. 这里,由于对接收了发给本站的无线分组的无线信道#2、 #5中分别设定了发送禁止时间,并且无线信道#2的无线分组的报头中没有设定占空时间,所以对无线信道#2只进行发送禁止时间的删除,对无线信道弁5进行发送禁止时间的更新。 Here, since the received wireless channel # 2, packet # 5 sent to the radio station of the transmission prohibition time are set, and wireless packet header of the wireless channel # 2 is not set the duty time, so the radio channel # 2 to delete send prohibition time, 5 Bian wireless channel update send prohibition time. 因此,在下一个定时t2,无线信道#3、井5通过利用NAV的虚拟载波侦听而被判定为忙碌状态,从而可利用无线信道井1、 #2、 #4来进行无线分组的并行发送。 Thus, in the next timing T2, the radio channel # 3, as well 5 is determined by using the NAV busy virtual carrier sensing, thereby using the wireless channel to perform parallel wells Packet Radio 1, # 2, # 4 transmitted.

[第十四实施方式] [Fourteenth Embodiment]

图20示出了本发明第十四实施方式的流程图。 FIG 20 shows a flowchart of a fourteenth embodiment of the present invention. 图21示出了本发明第十四实施方式的操作例。 FIG 21 shows an operation example of the fourteenth embodiment of the present invention. 这里,设有无线信道#1、 #2、 #3,并假定在发送数据生成(i)的定时,无线信道#2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听而被判定为忙碌状态。 Here, the wireless channel with # 1, # 2, # 3, and assuming the transmission data generating (i) timing, by using the wireless channel # 2 NAV according to the previous received packet radio set virtual carrier sense It is determined to be busy. 此外,假定无线信道#1、 #2、 #3具有相互发生泄漏的关系,并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels # 1, # 2, # 3 have a relationship of mutual leakage, and assuming the presence of such as leakage can not receive radio packets.

首先,在数据到达发送缓冲器中后,判定是否存在设定了发送禁止时间的无线信道,并且如果存在设有发送禁止时间的无线信道,就进行待机直到该发送禁止时间结束为止(S301、 S302)。 First, when data arrives in a transmission buffer, it is determined whether there is a radio channel transmission prohibition time is set, and if there is provided a radio channel transmission prohibition time, it waits until the end of the time until the transmission prohibition (S301, S302 ). 这里,在发送数据生成 Here, the transmission data generating

(1)的定时,无线信道弁2的NAV中设有发送禁止时间,从而等待至该发送禁止时间结束的定时tl为止。 (1) the timing of the radio channel Bian NAV 2 until the transmission prohibition period is provided to wait until the transmission prohibition period end timing tl. 接着,在定时tl,通过利用RSSI的物理载波侦听来检索空闲状态的无线信道(S311)。 Subsequently, at the timing tl, to retrieve the idle state by using a physical carrier sense RSSI radio channel (S311). 接着,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S312)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S312) data to be transmitted from the packet generation. 接着检测在并行发送的无线分组的发送时间中最长的发送时间Tmax Then detects the longest transmission time of the radio packet transmitted in parallel transmission time Tmax

(S313)。 (S313). 这里,无线信道#1〜#3处于空闲状态,因此使用无线信道# 1〜#3发送三个(或者各无线信道的空分多址复用数的总和)无线分组, 在此情况下检测其中最长的发送时间Tmax。 Here, wireless channels # 1 ~ # 3 is in the idle state, the 1 ~ # 3 transmits three (or the sum of the wireless channel of the number of space division multiple access multiplexing) wireless radio channel using packet #, which is detected in this case the longest transmission time Tmax.

接着,对无线信道井l、 #3、 #4中的每一个进行S314〜S317的处理。 Next, the radio channel wells l, # 3, # 4 in each of the processing performed S314~S317. 首先,检测从无线信道弁i (i是1、 2、 3)发送的无线分组的发送时间Ti (S314)。 First, detection (a 1, 2, 3 i) the transmission time of the wireless packet Ti (S314) transmitted from the radio channel Bian i. 若由于处于忙碌状态而没有无线分组的发送,则Ti二O。 Because if the busy state without sending a wireless packet, the two Ti O. 接着,将最长发送时间Tmax和从无线信道fti发送的无线分组的发送时间Ti进行比较(S315)。 Subsequently, the longest transmission time Tmax and the transmission packet transmitted from the wireless radio channel fti Ti is compared (S315). 这里,由于无线信道#1的发送时间Tl最长 Here, since the transmission time of the wireless channel # 1 is the longest Tl

(Tmax二Tl),并且除了无线信道# 1之外均为Tmax > Ti,所以以下处理的对象是除无线信道# 1之外的信道。 (Tmax two Tl), and in addition to the wireless channel # 1 are Tmax> Ti, so the object of the process is a channel other than the wireless channel # 1.

对于满足Tmax > Ti的无线信道弁i,把在Tmax上加上预定时间Ts而得的时间(Tmax + Ts)设给NAV,然后对下一个无线信道进行处理 For satisfying Tmax> Ti Bian radio channel i, the time Ts obtained by adding a predetermined time (Tmax + Ts) set to Tmax in the NAV, and then processing the next radio channel

(S316、 S317)。 (S316, S317). 另一方面,在不满足Tmax > Ti的无线信道弁i (这里是#1)的情况下,对该无线信道不进行任何处理,对下一个无线信道进行 On the other hand, is not satisfied in the case of Tmax> Ti Bian I wireless channel (# 1 here), and the radio channel without any processing, the next radio channel

处理(S315、 S317)。 Processing (S315, S317). 由此,对于具有最长发送时间Tmax的无线信道弁1,不进行NAV设定,对于无线信道#2、 #3,给NAV设定发送禁止时间(Tmax十Ts)。 Thus, for a radio channel having the longest transmission time Tmax Benten 1, without NAV set for the wireless channel # 2, # 3, to set the NAV transmission prohibition time (Tmax ten Ts). 这样,通过假定从无线信道弁l有泄漏并给无线信道#2和#3的NAV设定发送禁止时间(Tmax + Ts),能够避免发生如图50所示的无法接收无线分组并无法进行NAV设定的状况。 Thus, by assuming that there is a radio channel from Bian l leaking to the wireless channels # 2 and # 3 and transmits the NAV set prohibition time (Tmax + Ts), can be avoided as shown in FIG 50 and can not receive radio packets can not be NAV set of conditions.

接着,在发送数据生成(2)的定时,无线信道#2、 #3中通过S316 设有发送禁止时间,从而待机至该发送禁止时间结束的定时t2为止。 Next, the transmission data generating (2) a timing of the wireless channel # 2, # 3 through S316, a transmission prohibition time, thereby waiting until the prohibition time to end the transmission timing t2. 在定吋t2,判定出无线信道#1中有接收信号,无线信道#2、 #3处于空闲状态。 In the fixed-inch T2, it is determined that the wireless channel # 1 has received signals, the wireless channel # 2, # 3 is in the idle state. 从而以下同样地,使用无线信道#2、 #3进行并行发送,并在这里给无线信道#1、 #2的NAV设定新的发送禁止时间(Tmax + Ts)。 Whereby the same manner, using the wireless channel # 2, # 3 are simultaneously transmitted, and where a wireless channel # 1, NAV # 2 to set a new transmission prohibition time (Tmax + Ts). 从而,对这之间的发送数据生成(3)进行待机。 Thus, the data transmission between these generation (3) for standby.

[第十五实施方式] [Fifteenth Embodiment]

图22示出了本发明第十五实施方式的流程图。 FIG 22 shows a flowchart of a fifteenth embodiment of the present invention. 图23示出了本发明第十五实施方式的操作例。 FIG 23 illustrates an operation example of the fifteenth embodiment of the present invention. 这里,设有无线信道#1、弁2、 #3,并假定在发送数据生成(1)的定时,无线信道井2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, the wireless channel # 1 is provided, Bian 2, # 3, and assuming the timing of the transmission data generation (1), the well 2 by using the wireless channel based on the packet radio NAV previously received set of virtual carrier sensing is busy status is determined. 此外,假定无线信道#1〜#3具有只在预先设定的信道之间(例如邻接信道之间)发生泄漏的关系,并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels # 1 ~ # 3 have a relationship between only the predetermined channel (e.g., between adjacent channels) the occurrence of leakage, and assuming the presence of such as leakage can not receive radio packets.

首先,在数据到达发送缓冲器中后,判定是否存在设有发送禁止时间的无线信道,并且如果存在设有发送禁止时间的无线信道,就进行待机直到该发送禁止时间结束为止(S301、 S302)。 First, when data arrives in a transmission buffer, it is determined whether there is a radio channel, a transmission prohibition time, and if there is provided a radio channel transmission prohibition time, waiting until the proceeds until the end of the transmission inhibition time (S301, S302) . 这里,在发送数据生成(1)的定时,无线信道弁2的NAV中设有发送禁止时间,从而待机至该发送禁止时间结束的定时tl为止。 Here, the transmission data generator (1) the timing of the wireless channel Bian NAV 2 provided in the transmission prohibition period, thereby waiting until the transmission inhibition time to the end timing tl. 接着,在定时tl,通过利用RSSI的物理载波侦听来检索空闲状态的无线信道(S321)。 Subsequently, at the timing tl, to retrieve the idle state by using a physical carrier sense RSSI radio channel (S321). 接着,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S322)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S322) data to be transmitted from the packet generation. 这里,无线信道#1〜#3处于空闲状态,因此使用无线信道#1〜#3发送三个(或者各无线信道的空分多址复用数的总和)无线分组。 Here, wireless channels # 1 ~ # 3 is in the idle state, the 1 ~ # 3 transmits three (or the sum of the respective space division multiple access multiplexing of the radio channel number) to use the radio packet radio channel #.

接着,对用于发送的每个无线信道井i (这里是弁l、 #2、 #3)进行S323〜S328的处理。 Next, each radio channel for transmitting well i (here, Bian l, # 2, # 3) is treated S323~S328. 首先,检测从无线信道杯i (i是1、 2、 3)发送的无线分组的发送时间Ti (S323)。 First, the cup is detected from a radio channel i (i is 1, 2, 3) transmission time of the wireless packet transmitted Ti (S323). 接着,对每个受无线信道Wi影响的无线信道ttj (这里是邻接信道)进行S324〜S327的处理。 Next, the radio channel for each radio channel ttj Wi affected by (here adjacent channels) is processed S324~S327. 首先,检测从无线信道#」发送的无线分组的发送时间Tj (S324)。 First, detect packets wirelessly transmitted from the wireless channel # 'transmission time Tj (S324). 接着对无线信道Wi的发送时间Ti和邻接的无线信道弁j的每个发送时间Tj进行比较(S325),对于满足Ti 〉 Tj的无线信道Wj来说,由于可在无线信道弁i的发送期间结束发送,因此发送禁止时间设给NAV (S326)。 Next, the radio channel transmission time Ti and Wi adjacent radio channel for each transmission time Tj is compared Benten j (S325), to satisfy Ti> Tj Wj radio channel, since the radio channel can be transmitted during the i Bian end of the transmission, so the transmission prohibition time is set to NAV (S326). 在定时tl,对于无线信道#1、弁3,无线信道#2成为上述处理对象。 At timing tl, for radio channels # 1, Benten 3, the wireless channel # 2 becomes the processing target. 即,向满足Ti 〉Tj的无线信道弁j (这里是井2)的NAV设定发送禁止时间(Ti + Ts),然后对下一个无线信道进行处理(S326、 S327)。 That is, to satisfy Ti> Tj Bian wireless channel j (here well 2) set the NAV transmission prohibition time (Ti + Ts), and a radio channel for the next process (S326, S327). 另一方面,在不满足Ti > Tj的无线信道弁j的情况下,对该无线信道不进行任何处理,对下一个无线信道进行处理(S325、 S327)。 On the other hand, the Ti> Tj does not satisfy the wireless channel j, Benten, no processing of the radio channel, a radio channel to the next process (S325, S327).

对要用于发送的无线信道井i进行以上的处理(S323〜S328)。 Well wireless channel i to be used for transmission processing described above (S323~S328). 由此,对于无线信道#1、 #3,不进行NAV设定。 Thus, for wireless channels # 1, # 3, not NAV setting. 对于无线信道井2,将根据无线信道#1确定的发送禁止时间(Tl + Ts)和根据无线信道弁3确定的发送禁止时间(T3 + Ts)中较长的(Tl + Ts)设给NAV。 For radio channel well 2, and the longer (Tl + Ts) is provided in a radio channel Benten 3 NAV determined transmission prohibition time (T3 + Ts) wireless channel # 1 according to the determined transmission prohibition time (Tl + Ts) . 因此,在发送数据生成(2)的定时,无线信道#2中通过S326设有发送禁止时间,待机至该发送禁止时间结束为止的定时t2。 Thus, the transmission data generating (2) a timing of the wireless channel # 2 is provided by the transmission prohibition period S326, it waits until the timing t2 until the end of the transmission prohibition time.

在定时t2,判定出无线信道弁1中有接收信号,无线信道弁2、 #3处于空闲状态。 At timing T2, it is determined that there is a radio channel the received signal in Bian, Bian radio channel 2, # 3 is in the idle state. 从而以下同样地,使用无线信道#2、 #3进行并行发送,并在这里给无线信道#1、 #3的NAV设定新的发送禁止时间(T2 + Ts)。 Whereby the same manner, using the wireless channel # 2, # 3 are simultaneously transmitted, and where a wireless channel # 1, NAV # 3 is set to the new transmission prohibition time (T2 + Ts).

[第十六实施方式] [Sixteenth Embodiment]

第十四实施方式是以并行发送的无线分组中需要最长发送时间Tmax 的无线信道为基准,对其他所有无线信道设定发送禁止时间(Tmax + Ts)的。 A fourteenth embodiment of a wireless packet is transmitted in parallel transmission requires the longest time Tmax radio channel as a reference for all other radio channel configuration transmission prohibition time (Tmax + Ts) of. 这种方法假设了由于受发送时间最长的无线信道的泄漏影响而不能进行接收,进而不能设定新的发送禁止时间的情况,并对其他的全部无线信道一样地设定发送禁止时间。 This approach assumes that the transmission time of the longest due to leakage effects of the wireless channel can not be received, and thus can not set the new situation of the transmission prohibition period, and all of the other radio channels is set as the transmission inhibition time.

代替上述方法,也可以通过检测接收功率来选择实际受泄漏影响的无线信道,并对该无线信道进行发送禁止时间的设定。 Instead of the above method, may be selected by an actual radio channel affected by the leak detecting reception power, and set the transmission prohibition time of the radio channel. 即,在图20的S315 That is, S315 in FIG. 20

中满足Tmax〉T!的无线信道Wi中'检测不进行发送时的接收功率Pi,并将其与预定的阈值Pth进行比较,若该接收功率Pi大于等于阈值Pth,则认为受到泄漏影响,从而发送禁止时间Tmax + Ts设给NAV。 Satisfying Tmax> T! Radio channel Wi in 'detection is not receiving power when transmitting Pi, and compared with a predetermined threshold value Pth is, if the received power Pi greater than or equal the threshold value Pth is, it is considered to be leakage effects, such transmission prohibition time Tmax + Ts to set NAV. 由此,可以对没有泄漏影响的无线信道不进行NAV设定。 This makes it possible for radio channel no leakage effects of not setting NAV.

第十五施方式是预先确定受用于发送的无线信道弁i的泄漏影响的无线信道#」(例如邻接信道),并对此无线信道井j设定发送禁止时间(Ti + Ts)的。 Fifteenth embodiment is applied to a predetermined wireless channel # "leakage effect by Bian radio channel for transmission of i (e.g., adjacent channels), and this radio channel transmission prohibition time is set well j (Ti + Ts) of. 这种方法通过预先确定受泄漏影响的无线信道,能够避免对不受泄漏影响的无线信道也一样地设定发送禁止时间的情况。 By this method a predetermined radio channel affected by the leak, the leak is not possible to avoid the influence of radio channel is the same case of setting the transmission prohibition time.

代替上述方法,也可以通过在预定的无线信道中检测接收功率,从而选择实际受泄漏影响的无线信道,并对该无线信道进行发送禁止时间的设定。 Instead of the above-described methods, may be detected by a predetermined radio channel received power to select the actual radio channel affected by the leak, and to set the radio channel transmission prohibition time. 即,在图22的S325中满足Ti〉Tj的无线信道ttj中,检测不进行发送时的接收功率Pj,并将其与预定的阈值Pth进行比较,若该接收功率Pj 大于等于阈值Pth,则认为受到泄漏影响,从而向无线信道弁j的NAV设定发送禁止时间Ti + Ts。 That is, to meet in S325 of FIG. 22 Ti> radio channel ttj Tj, the detector is not receiving power Pj at the time of transmission, and is compared with a predetermined threshold value Pth is, if the received power Pj is greater than equal to the threshold value Pth is, the considered by the leakage effects, in order to send prohibition time Ti + Ts to NAV set of radio channels Bian j. 由此,可以对没有泄漏影响的无线信道不进行NAV设定。 This makes it possible for radio channel no leakage effects of not setting NAV.

此外,在第十四及第十五实施方式中,对所接收无线分组进行检错, 并在检测到错误时,认为存在泄漏影响,从而按照各个实施方式的步骤给NAV设定发送禁止时间。 Further, in the fourteenth and fifteenth embodiments, the received radio packet error detection, and when an error is detected, that there is leakage effects to various embodiments in accordance with the steps to set the NAV transmission prohibition time.

[第十七实施方式] [Seventeenth Embodiment]

图24示出了本发明第十七实施方式的流程图。 FIG 24 shows a flowchart of a seventeenth embodiment of the present invention. 图25示出了本发明第十七实施方式的操作例。 FIG 25 illustrates an operation example of the seventeenth embodiment of the present invention. 这里,设有无线信道弁1、井2、 #3,并假定在发送数据生成(1)的定时,无线信道弁2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, the radio channel is provided Benten 1, well 2, # 3, and assuming the transmission data generating (1) the timing of the wireless channel by using 2 Bian NAV The previous received packet radio set of virtual carrier sensing is busy status is determined. 此外,假定无线信道弁l、 #2、 #3具有相互发生泄漏的关系(这一点与第十四实施方式相同),并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels Bian l, # 2, # 3 have a relationship (which is the same manner as the fourteenth embodiment) mutually leakage, and assuming the presence of such as leakage can not receive radio packets.

首先,在数据到达发送缓冲器中后,判定是否存在设定了发送禁止时间的无线信道,并且如果存在设定了发送禁止时间的无线信道,就判断其中最长的发送禁止时间是否大于等于阈值Tth,如果该值小于阈值,则进行待机直到设定了发送禁止时间的无线信道的发送禁止时间结束为止 First, the data arrives in a transmission buffer, determines whether there is a radio channel transmission prohibition time is set, and if there is set a radio channel transmission prohibition time, which determines the longest transmission prohibition time is greater than equal to a threshold Tth is, if the value is less than the threshold value, waiting is performed until the set up of a radio channel transmission prohibition time of the transmission prohibition period end

(S301、 S302、 S303)。 (S301, S302, S303). 另一方面,如果设定了发送禁止时间的无线信道之中最长的发送禁止时间大于等于阈值Tth,则不迸行待机而进入接下来的处理(S303)。 On the other hand, if the radio channel is set in the transmission prohibition time of the longest transmission prohibition time is greater than the threshold value Tth is equal to, not into line standby to the next processing (S303).

这里,在发送数据生成(1)的定时,给无线信道似的NAV设定发送禁止时间,并且其发送禁止时间Ts2大于等于Tth,因此不进行待机而进入接下来的处理。 Here, generating (1) data in the transmission timing to the radio channel transmission prohibition period setting NAV like, and transmits Tth is greater than or equal prohibition time Ts2, waiting is not performed and the processing proceeds to the next. 在定时tl,进行利用RSSI的物理载波侦听和利用NAV 的虚拟载波侦听,从而同时检索空闲状态的无线信道(S311')。 At timing tl, the use of physical carrier sensing using the RSSI and the virtual carrier sensing NAV, thereby simultaneously retrieving idle wireless channel (S311 '). 接着, 使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S312)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S312) data to be transmitted from the packet generation. 接着检测在并行发送的无线分组的发送时间中最长的发送时间Tmax (S313)。 Then detects the longest transmission time of the radio packet transmitted in parallel transmission time Tmax (S313). 这里,无线信道#1、 #3处于空闲状态,因此使用无线信道#1、 #3发送两个(或者各无线信道的空分多址复用数的总和)无线分组,检测其中最长的发送时间Tmax。 Here, the wireless channels # 1, # 3 is in the idle state, 1, # 3 transmits two (or sum of the wireless channel of the number of space division multiple access multiplexing) wireless radio channel using packet #, wherein detecting the longest transmission time Tmax.

接着,对无线信道#1、 #3、 #4中的每一个进行S314〜S317的处理。 Next, the wireless channels # 1, # 3, # 4 in each of the processing performed S314~S317. 首先,检测从无线信道弁i (i是1、 2、 3)发送的无线分组的发送时间Ti (S314)。 First, detection (a 1, 2, 3 i) the transmission time of the wireless packet Ti (S314) transmitted from the radio channel Bian i. 若由于处于忙碌状态而没有无线分组的发送,则Ti二0。 Because if the busy state without sending a wireless packet, the Ti 20. 接着,比较最长发送时间Tmax和从无线信道井i发送的无线分组的发送时间Ti (S315)。 Next, compare the maximum time Tmax transmission packet and the transmission time of the wireless radio channel transmitted from well i Ti (S315). 这里,由于无线信道弁1的发送时间Tl最长(Tmax = Tl),并且除了无线信道弁l之外均为Tmax〉Ti,所以以下处理的对象是除无线信道#1之外的信道。 Here, since the transmission time of the wireless channel Bian longest Tl 1 (Tmax = Tl), and in addition are outside the radio channel Bian l Tmax> Ti, so the object of the process is a channel other than the wireless channel # 1.

对于满足Tmax > Ti的无线信道弁i,检测各自NAV中设定的发送禁止时间Tsi (S318)。 For satisfying Tmax> Ti Bian radio channel i, set NAV detecting each transmission prohibition time Tsi (S318). 这里,关于无线信道#2,可检测出Ts2。 Here, regarding the wireless channel # 2 may be detected Ts2. 接着,对在Tmax上加上预定时间Ts而得的时间(Tmax + Ts)和已设定的发送禁止时间Tsi进行比较,并且若Tmax + Ts > Tsi,则将Tmax + Ts作为新发送禁止时间设定给NAV,然后对下一个无线信道进行处理(S319、 S316、 S317)。 Next, plus the time Tmax (Tmax + Ts) is obtained by a predetermined time Ts and the set transmission prohibition time Tsi comparison, and if Tmax + Ts> Tsi, then Tmax + Ts as a new transmission prohibition time to set NAV, and a radio channel for the next process (S319, S316, S317). 另一方面,在不满足Tmax > Ti的无线信道tfi (这里是弁1)的情况下,对该无线信道不进行任何处理,进行对下一个无线信道的处理(S315、 S319、 S317)。 On the other hand, is not satisfied in the case where Tmax> Ti radio channel TFI (here Benten 1), the radio channel without any treatment, the processing of the next radio channel (S315, S319, S317).

由此,对于具有最长发送时间Tmax的无线信道# 1,不进行NAV设定,对于无线信道井2、 #3,将发送禁止时间(Tmax + Ts)设给NAV。 Thus, for a transmission having the longest time Tmax # 1 radio channel, without NAV set for the wireless channel well 2, # 3, the transmission prohibition period (Tmax + Ts) set to the NAV.

这样,通过预先确定从无线信道#l有泄漏并向无线信道#2和#3的NAV设定发送禁止时间(Tmax + Ts),能够避免发生如图50所示的无法接收无线分组并无法进行NAV设定的状况。 Thus, by predetermining the wireless channel to the wireless channel leakage #l # 2 and # 3 are set NAV transmission prohibition time (Tmax + Ts), can be avoided as shown in FIG 50 and can not receive radio packets can not be NAV set of conditions.

接着,在发送数据生成(2)的定时,无线信道弁2、 #3中通过S316 设有发送禁止时间,并且其发送禁止时间小于阈值Tth,因此,待机至该发送禁止时间结束为止的定时t2。 Next, the transmission data generating (2) a timing of the wireless channel Bian 2, # 3 through S316, a transmission prohibition period, and that the transmission prohibition time is less than the threshold value Tth is, therefore, a standby time until the end of the transmission prohibition timing t2 . 在定时t2,判定出无线信道#1中有接收信号,无线信道#2、 #3处于空闲状态。 At timing T2, it is determined that the wireless channel # 1 has received signals, the wireless channel # 2, # 3 is in the idle state. 从而以下同样地,使用无线信道#2、弁3进行并行发送,并在这里给无线信道井K弁2的NAV设定新的发送禁止时间(Tmax + Ts)。 Whereby the same manner, using the wireless channel # 2, Benten 3 are simultaneously transmitted, and a radio channel where a NAV well Bian K 2 sets a new transmission prohibition time (Tmax + Ts).

第十七实施方式是在图20所示的第十四实施方式中添加了S303、 S318、 S319而得的方式。 Seventeenth Embodiment S303 is added to the fourteenth embodiment shown in FIG. 20, S318, S319 obtained manner. 同样地,也可以在图22所示的第十五实施方式中添加S303、 S318、 S319。 Similarly, in S303 may be added to the fifteenth embodiment shown in FIG. 22, S318, S319. 同样也可以应用于第十四实施方式以及第十五实施方式中,即可应用于通过检测接收功率来选择实际受泄漏影响的无线信道的方式,以及进行所接收无线分组的检错并在检测到错误时选为受泄漏影响的无线信道的方式中。 Is also applicable to a fourteenth embodiment and the fifteenth embodiment can be applied to select a radio channel by way of the actual leakage effect by detecting the received power and packet error detection of the received radio detection and radio channel selected by the impact of the leak when in the wrong way.

[第十八实施方式] [Eighteenth Embodiment]

在第十七实施方式的S303中,如果设定了发送禁止时间的无线信道中的最长发送禁止时间大于等于阈值Tth,则不进行待机而使用当前的空闲信道进行发送,如果小于阈值Tth,则待机至设定了发送禁止时间的无线信道的发送禁止时间结束为止。 In a seventeenth embodiment S303, if the radio channel transmission prohibition time is set in the longest transmission prohibition time is greater than the threshold value Tth is equal, no standby current is used to transmit an idle channel, it is less than the threshold value Tth is, is set to the standby radio channel transmission prohibition time is prohibited until the end of time. 即,在设定了发送禁止时间的无线信道中,只要有一个设定了大于等于Tth的发送禁止时间就不进行待机。 That is, when setting the radio channel transmission prohibition time, as long as there is a set of greater than or equal Tth transmission prohibition time waiting is not performed. 第十八实施方式的特点在于,当存在所设定的发送禁止时间大于等于阈值Tth 的和小于阈值Tth的无线信道时,待机至小于阈值Tth的无线信道的发送禁止时间结束为止。 Characteristics of the eighteenth embodiment in that, when there is the transmission prohibition time is greater than the set threshold value Tth is equal to less than the threshold value Tth and when the radio channel, a standby radio channel transmission to less than the threshold value Tth is prohibited until the end of time.

图26示出了本发明第十八实施方式的流程图。 FIG 26 shows a flowchart of an eighteenth embodiment of the present invention. 图27示出了本发明第十八实施方式的操作原理。 FIG 27 shows an operation principle of an eighteenth embodiment of the present invention. 图28示出了本发明第十八实施方式的变形例的流程图。 FIG 28 shows a flowchart illustrating a modification of the eighteenth embodiment of the present invention. 图29示出了本发明第十八实施方式的变形例的操作原理。 FIG 29 shows a principle of operation of a modified example of the eighteenth embodiment of the present invention. 这里仅示出了代替图24的S303的部分。 Here only shows part of FIG. 24 in place of S303.

在图26中,判定是否存在设定了发送禁止时间的无线信道,并且如 In FIG. 26, it is determined whether there is a radio channel transmission prohibition time is set, and as

果存在设定了发送禁止时间的无线信道,则判定是否存在所设定发送禁止 If the presence of a radio channel transmission prohibition time is set, it is determined whether there is a set transmission prohibition

时间小于阈值Tth的无线信道(S302、 S303a)。 Time is less than the threshold value Tth of the radio channel (S302, S303a). 在图27所示的阈值Tthl 的情况下,设定了发送禁止时间的无线信道#2和#3中的发送禁止时间均大于等于阈值Tthl。 In the case where the threshold TTHL shown in FIG. 27, a transmission prohibition time is set wireless channel # 2 and # 3 are greater than the transmission inhibition time equal to a threshold Tthl. 在阈值Tth2的情况下,在设定了发送禁止时间的无线信道#2和#3中,只有弁2的发送禁止时间大于等于阈值Tth2。 In the case where the threshold value Tth2, the transmission prohibition period setting a wireless channel # 2 and # 3, only 2 Benten transmission prohibition time is not less than the threshold value Tth2. 在阈值Tth3的情况下,设定了发送禁止时间的无线信道#2和#3中的发送禁止时间均小于阈值Tth3。 In the case where the threshold value Tth3 is set transmission prohibition time of the wireless channel # 2 and # 3 of the transmission prohibition time is less than the threshold value Tth3.

在S303a中,当判定出不存在所设定的发送禁止时间小于阈值Tth的无线信道时(图27的阈值Tthl的情况),检测空闲状态的无线信道(S311')。 In S303a, when it is determined that there is no transmission prohibition time is set smaller than the threshold value Tth of the radio channel (threshold Tthl FIG. 27), the radio channel idle is detected (S311 '). 在图27的例子中,进行使用无线信道#1的发送。 In the example of FIG. 27, it is transmitted using the wireless channel # 1. 另一方面,当判定出存在所设定的发送禁止时间小于阈值Tth的无线信道时(图27的阈值Tth2、 Tth3的情况),待机至小于等于阈值Tth的时间结束为止(S303b)。 On the other hand, when it is determined that there is the set transmission prohibition time is less than the threshold value Tth of the radio channel (threshold value Tth2 in FIG. 27, the case Tth3), less than or equal to the threshold waiting until the end of time Tth (S303b). 在图27的阈值Tth2的例子中,待机至无线信道#3的发送禁止时间结束为止,在阈值Tth3的例子中,待机至无线信道#2、 #3的发送禁止时间结束为止。 Tth2 threshold value in the example of FIG. 27, a standby radio channel until the end of the transmission prohibition period # 3, in the example of the threshold value Tth3, waits until the wireless channel # 2, # 3 of the transmission prohibition period ends.

第十七实施方式和本实施方式的区别点是,在图27的例子中,在阈值Tth2的情况下前者不进行待机,而后者却待机至无线信道#3的发送禁止时间结束为止。 Seventeenth Embodiment point of difference of the present embodiment and the embodiment, in the example of FIG. 27, in the former threshold value Tth2 without waiting, while the latter stand until the end of the transmission prohibition time radio channel # 3. 在阈值Tthl和Tth3的情况下,两者之间没有区别。 In the case where the threshold value Tth3 Tthl and no difference between the two.

但是,在S303b的处理中,能够在阈值Tth2的情况下等待无线信道# 3的发送禁止时间结束,然后利用无线信道弁1和弁3进行并行发送。 However, in the processing of S303b, it is possible to wait for the transmission prohibition time of the radio channel # 3 ends in a case where the threshold value Tth2, then use the radio channel and Bian Bian 1 3 are simultaneously transmitted. 但有时却希望根据无线信道#2的发送禁止时间进一步进行等待,从而增加用于并行发送的无线信道。 But sometimes they want to wait for further transmission prohibition time of radio channel # 2, thereby increasing the radio channels for parallel transmission. 此时,如图28所示,在S303b的等待之后返回到S302,从而再次进行S303a的判定。 At this time, as shown in FIG. 28, it returns to S302 after waiting S303b, S303a to perform the determination again.

图29的例子与图27的阈值Tth2的情况相对应,其中无线信道井2的发送禁止时间大于等于阈值Tth,无线信道#3的发送禁止时间小于阈值Tth。 FIG 29 is an example of the threshold of FIG. 27 corresponds to the value Tth2, wherein the radio channel transmission prohibition time well 2 is greater than the threshold value Tth is equal, transmission prohibition time of the wireless channel # 3 is smaller than the threshold value Tth. 此时,待机至无线信道弁3的发送禁止时间结束为止,并在所述结束的时刻,如图29 (2)所示,判定无线信道弁2的发送禁止时间大于等于阈值Tth还是小于阈值Tth (S303a)。 In this case, a radio channel to the standby transmission prohibition time Benten 3 until the end, and at the time of the end, 29 (2), determines a radio channel transmission prohibition time Bian 2 is not less than the threshold value Tth or less than the threshold value Tth (S303a). 这里,如果大于等于阈值Tth,则不进行待机而使用无线信道弁1和弁3进行发送,如果小于阈值Tth,则进 Here, if the threshold value Tth is greater than or equal, no standby radio channel used Bian Bian 1 and 3 is transmitted, it is less than the threshold value Tth is, proceeds

行待机,等待所有无线信道#1、 #2、弁3均变为空闲状态。 Standby lines, wait for all the wireless channels # 1, # 2, Benten 3 both become idle. [第十九实施方式] [Nineteenth Embodiment]

图30示出了本发明第十九实施方式的流程图。 FIG 30 shows a flowchart of the nineteenth embodiment of the present invention.

在第十七实施方式中,当存在设定了发送禁止时间的无线分组,并且其中最长的发送禁止时间大于等于阈值Tth时,不等待该发送禁止时间的结束,而是转到检索空闲状态的无线分组来并进行发送的处理。 In a seventeenth embodiment, when there is set a radio packet transmission prohibition time, and wherein the longest transmission prohibition time is greater than the threshold value Tth is equal, without waiting for the end of the transmission prohibition time, but to retrieve the idle state wireless packet to be processed and transmitted. 本实施方式的特点在于,代替所述最长发送禁止时间和阈值Tth之间的比较处理 Feature of this embodiment is that, instead of the maximum transmission prohibition comparison between the processing time and the threshold value Tth

(5303) ,而转到以概率p检索空闲状态的无线信道并进行发送的处理 (5303), and probability p to retrieve the idle wireless channels and transmission process

(5304) ,然后在以概率(l一p)进行时间待机(S305)之后,返回到对是否存在设定了发送禁止时间的无线信道进行判定(S302)。 After (5304), then the standby time (S305) with probability (P L a), returns to whether or not there is set a radio channel transmission prohibition time is determined (S302). 由此能够以概率p进行发送处理,而与发送禁止时间的长短无关。 Whereby the transmission processing can be performed with probability p, regardless of the length of the transmission prohibition time.

概率p既可以是恒定值,也可以根据设定的发送禁止时间而可变(例如,相对发送禁止时间单调减少的函数)。 Probability p may be a constant value or may be variable (e.g., relatively monotonically decreasing function of the transmission prohibition time) according to the set transmission prohibition time. [第二十实施方式] [Twentieth Embodiment]

图31示出了本发明第二十实施方式的流程图。 FIG 31 shows a flowchart of a twentieth embodiment of the present invention. 图32示出了本发明第二十实施方式的操作例。 32 shows an operation example of a twentieth embodiment of the present invention. 这里,设有无线信道弁1、 #2、弁3,并假定在发送数据生成(1)的定时,无线信道#2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, the radio channel is provided Benten 1, # 2, Benten 3, and assuming the timing generation (1) in the transmission data, by using the wireless channel # 2 according to the NAV packet radio previously received set of virtual carrier sensing is busy status is determined. 此外,假定无线信道#1、 #2、 #3具有相互发生泄漏的关系,并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels # 1, # 2, # 3 have a relationship of mutual leakage, and assuming the presence of such as leakage can not receive radio packets.

首先,在数据到达发送缓冲器中后,进行利用RSSI的物理载波侦听和利用NAV的虛拟载波侦听(发送禁止时间的检测),判断是否所有无线信道处于空闲状态(S301、 S306)。 First, when data arrives in a transmission buffer, a physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (transmission prohibition detection time), it determines whether all the radio channel is in an idle state (S301, S306). 这里,在发送数据生成(1)的定时,给无线信道#2的NAV设定了发送禁止时间,从而进行待机,直到该发送禁止时间结束且所有无线信道成为空闲状态的定时tl为止。 Up to this point, generating (1) data in the transmission timing to the wireless channels # NAV 2 transmission prohibition time is set to a standby state until the end of the transmission prohibition time and all the radio channel becomes idle timer tl. 接着,在定时tl,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S312)。 Subsequently, at the timing tl, using the idle wireless channels in parallel a plurality of radio packets transmitted (S312) from the packet data to be transmitted is generated. 然后检测在并行发送的无线分组的发送时间中最长的发送时间Tmax (S313)。 And then detecting the longest transmission time of the radio packet transmitted in parallel transmission time Tmax (S313). 这里,无线信道弁1〜#3处于空闲状态,因此使用无线信道#1〜井3发送三个(或者各无线信道的空分复用数的总 Here, Bian wireless channels # 1 ~ 3 in an idle state, the use of the radio channel # 1 ~ 3 transmits three wells (of each radio channel or space division multiplexing of the total

和)无线分组,检测其中最长的发送时间Tmax。 And) wireless packet, detecting the longest transmission time Tmax.

接着,对无线信道#1、 #2、 #3中的每一个进行与第十四实施方式相同的S314〜S317的处理。 Next, 1, # 2, # 3, # wireless channel for each of a fourteenth embodiment of S314~S317 same manner. 由此,通过预先确定从无线信道#1有泄漏并给无线信道#2和#3的NAV设定发送禁止时间(Tmax + Ts),能够避免发生如图50所示的无法接收无线分组并无法进行NAV设定的状况。 Accordingly, by previously determining leakage from the wireless channel # 1 to the wireless channels # 2 and # 3 and transmits the NAV set prohibition time (Tmax + Ts), it can be avoided as shown in Figure 50 can not receive the wireless packet, and not NAV carried out the set conditions.

接着,在发送数据生成(2)的定时,无线信道#2、 #3中通过S316 设有发送禁止时间,而且无线信道弁l由于接收信号而处于忙碌状态,从而进行等待直到所述所有无线信道均变为空闲状态的定时t3为止。 Next, the transmission data generating (2) a timing of the wireless channel # 2, # 3, a transmission prohibition time via S316, and the radio channel received signal since Bian l is busy, thereby waiting until all the radio channels both become idle until the timing t3. 在定时t3,与上述相同地使用无线信道#1〜#3进行并行发送,并在这里向发送时间最长的无线信道井3之外的无线信道#1、弁2的NAV设定新的发送禁止时间(Tmax + Ts)。 At timing T3, and using the same manner as the wireless channel # 1 ~ # 3 are simultaneously transmitted, and transmits this radio channel the longest wells # 1 radio channel, other than the 32 Benten NAV setting of a new transmission disabled time (Tmax + Ts).

[第二十一实施方式] [Twenty-first Embodiment]

图33示出了本发明第二十一实施方式的流程图。 FIG 33 shows a flowchart of a twenty-first embodiment of the present invention. 图33示出了本发明第二H^—实施方式的操作例。 FIG 33 shows a second H ^ the present invention - the operation of the embodiment. 这里,设有无线信道#1、 #2、 #3,并假定在发送数据生成(1)的定时,无线信道弁2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, the wireless channel with # 1, # 2, # 3, and assuming the timing generation (1) in the transmission data, by using the radio channel Bian 2 The NAV packet radio previously received set of virtual carrier sensing is busy status is determined. 此外,假定无线信道#1、 #2、弁3只在预先设定的信道之间(例如邻接信道)发生泄漏(这一点不同于第二十实施方式),并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels # 1, # 2, Bian leakage (which is different from the twentieth embodiment) occurs between three preset channels (e.g., adjacent channels), and assuming the presence of such leakage is not as receiving radio packets.

首先,在数据到达发送缓冲器中后,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),判断是否所有无线信道处于空闲状态(S301、 S306)。 First, when data arrives in a transmission buffer, a physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (transmission prohibition detection time), it determines whether all the radio channel is in an idle state (S301, S306). 这里,在发送数据生成(1)的定时,给无线信道弁2的NAV设定了发送禁止时间,从而进行待机,直到该发送禁止时间结束且所有无线信道成为空闲状态的定时tl为止。 Up to this point, generating (1) data in the transmission timing to the wireless channels Bian NAV 2 transmission prohibition time is set to a standby state until the end of the transmission prohibition time and all the radio channel becomes idle timer tl. 接着,在定时tl,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S322)。 Subsequently, at the timing tl, using the idle wireless channels in parallel a plurality of radio packets transmitted (S322) from the packet data to be transmitted is generated. 这里,无线信道弁1〜#3处于空闲状态,因此使用无线信道#1〜#3发送三个(或者各无线信道的空分多址复用数的总和) 无线分组。 Here, Bian wireless channels # 1 ~ 3 in an idle state, so 1 ~ # 3 transmits three (or the sum of the respective space division multiple access multiplexing of the radio channel number) to use the radio packet radio channel #.

接着,对用于发送的每个无线信道弁i (这里是#1、 #2、 #3)迸行 Next, each radio channel for transmission Bian i (here, # 1, # 2, # 3) into line

与第+五实施方式相同的S323〜S328的处理。 + Five of the same embodiment of the process S323~S328. 由此,对于无线信道#1、 弁3不进行NAV设定。 Thus, for wireless channels # 1, Benten 3 NAV setting is not performed. 对于无线信道井2,将根据无线信道弁l确定的发送禁止时间(Ti + Ts)和根据无线信道#3确定的发送禁止时间(T3 + Ts)中较长的(Tl +Ts)设给NAV。 For radio channel well 2, and the longer (Tl + Ts) is provided to the radio channel # 3 NAV determined transmission prohibition time (T3 + Ts) l Bian determined radio channel transmission prohibition time (Ti + Ts) .

接着,在发送数据生成(2)的定时,无线信道#2中通过S326设定发送禁止吋间,而且无线信道#1由于接收信号而处于忙碌状态,从而进行待机直到所述所有无线信道均变为空闲状态的定时t3为止。 Next, the transmission data generator (2) timing, by the wireless channel # 2 waits until all of the radio channels between the transmission prohibition setting inch S326, and the wireless channel # 1 since the received signal is busy, thereby performing both variants an idle state until the timing t3. 在定时t3, 与上述相同地使用无线信道#1〜#3迸行并行发送,而且,在这里给与发送时间最长的无线信道#2相邻的无线信道#1、 #3的NAV设定新的发送禁止时间(T2 + Ts)。 At timing T3, and using the same manner as the wireless channel # 1 ~ # 3 into line parallel transmission, and, where a wireless channel given transmission time of the longest adjacent radio channel # 2 # 1, NAV set # 3 the new transmission prohibition time (T2 + Ts).

在第二十实施方式及第二十一实施方式中也可以通过检测接收功率来选择实际受泄漏影响的无线信道。 In a twentieth embodiment and a twenty-first embodiment, the radio channel can be selected by actual leakage effect by detecting the reception power. 此外,也可以进行所接收无线信道的检错,并在检测到错误时选择为受泄漏影响的无线信道。 In addition, error detection may be performed on the received radio channel, and select a radio channel subject to leakage effect when an error is detected.

[第二十二实施方式] [Twenty-second embodiment]

图35示出了本发明第二十二实施方式的流程图。 FIG 35 shows a flowchart of a twenty-second embodiment of the present invention. 图36示出了本发明第二十二实施方式的操作例。 FIG 36 illustrates an operation example of the twenty-second embodiment of the present invention. 这里,设有无线信道井1、 #2、 #3,并假定在发送数据生成(1)的定时,无线信道#2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, the radio channel with the well 1, # 2, # 3, and assuming the timing of the transmission data generation (1), by using the wireless channel # 2 NAV according to the previous received packet radio set of virtual carrier sensing is busy status is determined. 此外,假定无线信道#1、 #2、 #3具有相互发生泄漏的关系(这一点与第二十实施方式相同),并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels # 1, # 2, # 3 have a relationship to each other leak (this is the same as the twentieth embodiment), and assuming as the presence of such a leak can not receive radio packets.

首先,在数据到达发送缓冲器中后,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),判断是否所有无线信道处于空闲状态。 First, when data arrives in a transmission buffer, a physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (transmission prohibition detection time), it determines whether all the radio channel is idle. 然后,若存在设定了发送禁止时间,从而不处于空闲状态的发送信道,则判定其中最长的发送禁止时间是否大于等于阈值Tth,并且如果该值小于阈值,就进行待机直到发送禁止时间结束从而变成空闲状态(S301、 S306、 S303)。 Transmission channel and, if there is set the transmission prohibition time, which is not in an idle state, it is determined that the longest transmission prohibition time is greater than equal to the threshold value Tth is, and if the value is less than the threshold value, it waits until the transmission prohibition period end so as to become an idle state (S301, S306, S303). 另外,若设定了发送禁止时间的无线信道之中最长的发送禁止时间大于等于Tth,则不进行待机而进入接下来的处理(S303)。 Further, if the radio channel is set in the transmission prohibition time of the longest transmission prohibition time Tth is greater than or equal, not for standby to the next processing (S303).

这里,在发送数据生成(1)的定时,给无线信道弁2的NAV设定了发 Here, generating (1) data in the transmission timing to the radio channel set up Bian hair NAV 2

送禁止时间,并且该发送禁止时间Ts2大于等于阈值Tth,因此不进行待机而进入接下来的处理(S3U')。 Transmission prohibition period, and the transmission prohibition time Ts2 is greater than the threshold value Tth is equal to, thus without waiting to enter the next processing (S3U '). 接着,使用空闲状态的无线信道并行发送从待发送的数据分组生成的多个无线分组(S312)。 Next, using the idle wireless channels in parallel a plurality of wireless transmit packets (S312) data to be transmitted from the packet generation. 然后检测在并行发送的无线分组的发送时间中最长的发送时间Tmax (S313)。 And then detecting the longest transmission time of the radio packet transmitted in parallel transmission time Tmax (S313). 这里,无线信道#1、弁3处于空闲状态,因此使用无线信道#1、 #3发送两个 Here, the wireless channel # 1, Benten 3 is in an idle state, using the wireless channel # 1, # 3 transmits two

(或者各无线信道的空分多址复用数的总和)无线分组,在此情况下检测其中最长的发送时间Tmax。 (The sum of the respective radio channels or the space division multiple access multiplexing number) wireless packet, in which case the detected transmission time of the longest Tmax.

接着,对无线信道#1、 #2、弁3中的每一个进行与第十七实施方式相同的S314〜S319的处理。 Next, 1, # 2, each of the radio channel # 3 Benten with a seventeenth embodiment of S314~S319 same process. 由此,对于具有最长发送时间Tmax的无线信道#1,不进行NAV设定,对于无线信道弁2、弁3,将发送禁止时间 Thus, for a transmission having the longest time Tmax # 1 radio channel, without NAV set for the wireless channel Bian 2, 3 Bian, the transmission prohibition time

(Tmax + Ts)设给NAV。 (Tmax + Ts) set to the NAV. 这样,通过预先确定从无线信道# 1有泄漏并给无线信道#2和#3的NAV设定发送禁止时间(Tmax + Ts),能够避免发生如图50所示的无法接收无线分组并无法进行NAV设定的状况。 Thus, by predetermining the wireless channel # 1 and the leakage to the wireless channels # 2 and # 3 are set NAV transmission prohibition time (Tmax + Ts), can be avoided as shown in FIG unable to receive radio packets 50 and can not be NAV set of conditions.

接着,在发送数据生成(2)的定时,给无线信道弁2、井3设定由S316确定的发送禁止时间,并由于该发送禁止时间小于阈值Tth,而且无线信道#1由于接收信号而处于忙碌状态,所以进行待机,直到所述所有无线信道均变为空闲状态的定时t3为止。 Next, the transmission data generator (2) timing to the wireless channels Bian 2, 3 wells set time determined by the transmission prohibition S316, and since the transmission prohibition time Tth is smaller than the threshold value, the wireless channel # 1 and the received signal is due timing t3 until the busy state, it waits until all the radio channels are changed to idle state. 在定时t3,与上述相同地使用无线信道#1〜#3进行并行发送,并在这里给发送时间最长的无线信道弁3 之外的无线信道井l、 #2的NAV设定新的发送禁止时间(Tmax + Ts)。 At timing T3, and using the same manner as the wireless channel # 1 ~ # 3 are simultaneously transmitted, and in addition to this radio channel the longest transmission radio channel Benten 3 wells l, NAV # 2 to set a new transmission disabled time (Tmax + Ts).

第二十二实施方式是在图3i所示的第二十实施方式中添加S303、 S311' 、 S318、 S319而构成的方式。 Twenty-second embodiment is the addition of S303, S311 'in the twentieth embodiment illustrated in FIG. 3i, S318, S319 and embodiment thereof. 同样地,也可以在图33所示的第二H"^—实施方式中添加S303、 S31T 、 S318、 S319。并且也同样可应用于第二十实施方式及第二十一实施方式的变形例中,即可应用于通过检测接收功率来选择实际受泄漏影响的无线信道的方式,以及进行所接收无线分组的检错并在检测到错误时选为受泄漏影响的无线信道的方式中。 Likewise, the second H "shown in Fig. 33 can ^ - adding embodiment S303, S31T, S318, S319, and also applicable to a modified example of the twentieth embodiment and a twenty-first embodiment. , the actual radio channel can be selected by the applied affected by leakage detecting reception power mode, and performs error detection on the received wireless packet radio channel and preferably by way of leakage effect when an error is detected.

[第二十三实施方式] [23rd Embodiment]

如同第十七实施方式和第十八实施方式之间的关系那样,在第二十二实施方式中也可以当存在所设定发送禁止时间大于等于阈值Tth的和小于 As the relationship between the seventeenth embodiment and the eighteenth embodiment described above, in the twenty-second embodiment may also be present when the set transmission prohibition time is greater than threshold value Tth is equal to and less than

阈值Tth的无线信道时,进行待机,直到小于阈值Tth的发送禁止时间结束为止。 When the threshold value Tth radio channel, waits until the end less than the threshold value Tth of the transmission prohibition time.

[第二十四实施方式] [Twenty-fourth Embodiment]

图37示出了本发明第二十四实施方式的流程图。 FIG 37 shows a flowchart of a second embodiment of the fourth embodiment of the present invention.

在第二十二实施方式中,当存在设定了发送禁止时间的无线分组,并且其中最长的发送禁止时间大于等于阈值Tth时,不等待该发送禁止时间的结束而是转到检索空闲状态的无线分组并进行发送的处理。 In a twenty-second embodiment, when there is set the packet radio transmission prohibition time, and wherein the longest transmission prohibition time is greater than the threshold value Tth is equal, without waiting for the end of the transmission prohibition time to retrieve the idle state but wireless packet transmission and processing. 本实施方式的特点在于,代替所述最长发送禁止时间和阈值Tth之间的比较处理(S303 ),进入以概率p检索空闲状态的无线信道并进行发送的处理(S304),然后在以概率(l一p)进行一定时间的待机(S305)之后,返回到对是否存在设定了发送禁止时间的无线信道的判断(S302)。 Feature of this embodiment is that, instead of the maximum transmission prohibition time and the threshold value comparison processing (S303) between Tth is, with probability p retrieve into the idle wireless channels and transmission processing (S304,), then the probability after (a L p) waiting for a predetermined time (S305), whether there is a return to the set of radio channels is determined (S302) the transmission prohibition time. 由此能够以概率p进行发送处理,而与发送禁止时间的长短无关。 Whereby the transmission processing can be performed with probability p, regardless of the length of the transmission prohibition time.

概率p既可以是恒定值,也可以根据设定的发送禁止时间而可变(例如,相对发送禁止时间单调减少的函数)。 Probability p may be a constant value or may be variable (e.g., relatively monotonically decreasing function of the transmission prohibition time) according to the set transmission prohibition time.

[第二十五实施方式] [Twenty-fifth Embodiment]

图38示出了本发明第二十五实施方式的发送方处理步骤的流程图。 FIG 38 shows a flowchart transmitting side processing steps of the present invention is the twenty-fifth embodiment. 图39示出了本发明第二十五实施方式接收方处理步骤的流程图。 FIG 39 shows a flowchart of processing steps recipient twenty-fifth embodiment of the present invention. 图40示出了本发明第二十五实施方式的操作例(1) 、 (2)。 FIG 40 shows an operation example (1), (2) twenty-fifth embodiment of the present invention. 这里,在无线站1 和2之间设有无线信道#1、 #2,并假定在定时tl,无线信道弁2通过利用根据此前接收的无线分组而设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, between the radio station 1 and the wireless channel # 2 is provided with 1, # 2, and assuming the timing tl, Bian radio channel is determined by using 2 previous NAV according to the received packet radio set virtual carrier sensing It is busy. 此外,假定无线信道井1、 #2具有相互发生泄漏的关系,并存在这种泄漏时无法接收无线分组。 Furthermore, the radio channel is assumed that the well 1, # 2 have a relationship of mutual leakage occurs, and there is a packet radio can not be received when such leakage.

在图38中,发送方无线站检索空闲状态的无线信道(S401)。 In Figure 38, the sender wireless radio channel idle station retrieved (S401). 这里,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听,并当在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the use of physical carrier sensing using the RSSI and the virtual carrier sensing NAV, and the idle state is determined when both the detection of the carrier was not detected. 接着,使用空闲状态的无线信道发送无线分组(S402)。 Next, using the idle wireless channel wireless transmission packet (S402). 接着,对于受进行发送的无线信道的泄漏影响的无线信道(这里称为"成对的无线信道"),把在发送的无线分组的发送时间上加上预定时间的发送禁止时间设给NAV (S403)。 Next, the radio channel for a radio channel by a transmission leakage effect (herein referred to as "radio channels paired"), plus the predetermined transmission prohibition period is provided to the NAV time on the transmission time of the wireless packet transmitted ( S403). 这里,对于无线信道弁l,成对的无线信道井2既可以是己知的,也可以通过 Here, the radio channel for L Bian, a pair of radio channel 2 may be a well known, and can also

检测实际从无线信道#1向无线信道#2的泄漏来进行识别。 Detecting the actual wireless channel # 1 from leaking to the wireless channel # 2 is to be identified. 接着,启动 Then, start

用于接收针对所发送无线分组的ACK分组的ACK定时器,并监视在ACK超时之前是否接收ACK分组(S404、 S405、 S406)。 ACK timer for receiving an ACK packet transmitted by the packet radio, and monitors whether or not receiving the ACK packet before the ACK timeout (S404, S405, S406). 这里,当没有接收到ACK分组而ACK超时时结束发送处理,并根据需要进行无线分组的重发处理(S407)。 Here, when the ACK is not received the ACK packet transmission time-out processing is ended, and wireless packet retransmission processing (S407) as required.

另一方面,当在ACK超时之前接收了ACK分组时,停止ACK定时器(S408),并确认ACK分组中是否有成对无线信道的NAV信息 On the other hand, when the time-out before receiving an ACK packet ACK, ACK timer is stopped (S408), and confirms whether the wireless channel pair NAV information ACK packet

(S409)。 (S409). 这里,在被附加了NAV信息的ACK分组的情况下,根据该NAV信息更新成对无线信道中设定的NAV (S410),然后结束发送处理 Here, in a case where information is appended NAV ACK packet, based on the radio channel pair NAV NAV update information (S410) to set, and the transmission process ends

(S411)。 (S411). 此外,在没有NAV信息的普通帧格式的ACK分组的情况下, 结束发送处理(S411)。 Further, in the case where no ACK packet NAV conventional frame format information, transmission end processing (S411). 步骤S409的处理对应于包括只能发送普通帧格式的ACK分组的无线站的系统。 Step S409 corresponds to the processing station of the radio system comprises transmitting only an ACK packet conventional frame format. 因此,在所有ACK分组中附加了NAV 信息的系统中,不需要进行步骤S409的判定处理。 Accordingly, the NAV additional system information in all ACK packets, does not need determination process of step S409.

在图39中,接收方无线站若顺利接收了发给本站的无线分组,则判定各无线信道中设定了NAV (S421、 S422)。 In FIG 39, if the receiving wireless station successfully receives the packet sent to the radio station, it is determined for each radio channel is set NAV (S421, S422). 假设各无线信道的NAV是通过各无线信道所接收的无线分组(也包括不是发给本站的)中记载的发送禁止时间而设定的。 NAV is assumed that the respective radio channels a radio channel by each of the radio packet received (including not sent to the station) in the transmission inhibition time set by described. 接着生成针对顺利接收的无线分组的ACK分组, 此时向ACK分组附加成对无线信道的NAV信息(S423)。 Next generation wireless ACK packet for the packet successfully received, then the packet radio channel of the additional pair NAV information (S423) to the ACK. 当成对无线信道没有接收无线分组从而NAV为"0"时,向ACK分组附加的NAV信息为"0"。 Of the wireless channel as the wireless packet is not received so that NAV is "0", the ACK packet NAV additional information is "0." 发送如上述附加了成对无线信道的NAV信息的ACK分组 The transmission of the additional radio channels paired NAV information indicating the ACK packet

(S424),并结束无线分组的接收处理。 (S424), and ends the reception process of the wireless packet.

下面,参考图40详细说明基于如上所述的发送方无线站1和接收方无线站2的处理步骤的操作例。 Operation Example 1 and the radio station based processing steps described above, the sender receiving wireless station 2 below, described in detail with reference to FIG. 40. 在图38和图39中,成对无线信道是指相对于从无线站1向无线站2发送无线分组的无线信道#1的无线信道#2。 In FIGS. 38 and 39, the pair of means with respect to the radio channel is transmitted from the wireless packet radio station 1 to the wireless station 2 # 1 radio channel of the wireless channel # 2.

在图40 (1)中,在定时tl无线信道弁l处于空闲状态,无线信道井2 处于根据NAV的忙碌状态(发送禁止状态)。 In (1) in FIG. 40, at the timing tl l Bian idle radio channel, a radio channel in a well 2 (transmission disabled state) in accordance with busy status of the NAV. 无线站1在定时tl检测空闲状态的无线信道弁l,并发送以无线站2为目的地的无线分组。 Wireless station 1 at a timing tl idle wireless channel detection Benten l, and the radio station 2 is transmitted to the destination wireless packet. 此时, 由于成对的无线信道弁2的NAV短于无线分组的发送时间,所以把在无线分组的发送时间上加上预定时间(相当于在无线分组发送过程中根据接收 At this time, since the pair of shorter radio channel Benten NAV 2 in time of the wireless packet transmission, so the transmission time plus the predetermined time wireless packet (corresponding to packet transmission according to a wireless reception process

无线分组设定的发送禁止时间)而得的发送禁止时问设给无线信道#2的 Wireless packet transmission inhibition time set) Q provided to the wireless channel # 2 is obtained when the transmission prohibition

NAV。 NAV. 然后无线站1等待从无线站2发送的ACK分组的接收。 The wireless station waits to receive an ACK packet transmitted from the wireless station 2.

另一方面,在无线站2中,若顺利接收了无线信道#2的无线分组, 则判定成对的无线信道弁2中设定的NAV。 On the other hand, in the wireless station 2, when successfully receiving a wireless packet radio channel # 2, the radio channels paired Benten NAV set 2 is determined. 这里,在定时t2,无线信道# 2中根据所接收的无线分组设定NAV,在ACK分组中附加NAV信息后进行发送。 Here, in the timing T2, the wireless channel # 2 is set NAV according to the received radio packet, transmits the additional information in the ACK packet NAV.

无线站1若接收了针对通过无线信道#1发送的无线分组的ACK分组,则根据ACK分组中附加的NAV信息,更新无线信道中设定的NAV。 If the radio station 1 is received by an ACK packet for the wireless channel # 1 transmits the radio packet, the ACK packet in accordance with the additional information NAV, update the NAV set radio channel. 这里,删除在定时tl设定的NAV,并根据ACK分组中附加的NAV信息重新进行设定,从而NAV被縮短。 Here, at the timing tl delete setting NAV, and re-set according to the ACK packet NAV additional information, so that NAV is shortened. 这样,在无线站1中,即使在无法接收无线信道弁2的无线分组的情况下,也能够进行使用无线站2 的无线信道井2的NAV设定,从而能够将在定时tl设定的潜在的NAV更新为最优的。 Thus, in the wireless station 1, even in the case of not receiving a wireless packet radio channel Bian 2, the station can be performed using a wireless radio channel well set NAV 2 2, it can be set so that potential at the timing tl the NAV is updated to optimal.

此外,如图40 (2)所示,虽然由无线站1在定时tl给无线信道#2 设定了NAV,但当在无线信道弁2中没有接收信号时情况如下。 Further, FIG. 40 (2), although the wireless station 1 to the wireless channels at the timing tl # 2 the NAV is set, but when the signal is not received in the radio channel 2 Bian follows. 附加到从无线站2发送的ACK分组中的NAV信息为"0",无线站1在接收了该ACK分组时更新(删除)无线信道#2中设定的NAV。 NAV information attached to the ACK packet transmitted from the radio station 2 is "0", the radio station 1 receives the update (delete) the wireless channel # 2 NAV set in the ACK packet. 由此,无线信道#2中潜在设定的NAV随着ACK的接收而被删除,从而可以立刻利用无线信道弁2。 Thus, in the wireless channel # 2 is set as the NAV potentially receive ACK is deleted, using the wireless channel can be immediately Bian 2.

[第二十六实施方式] [Twenty-sixth Embodiment]

第二十六实施方式对应于多个无线信道同时被使用的场合,例如适用于同时使用多个无线信道来并行发送多个无线分组的系统中。 A twenty-sixth embodiment corresponds to a case where a plurality of radio channels to be used simultaneously, for example, suitable for the simultaneous use of multiple wireless channels are simultaneously transmitted packets of the plurality of wireless systems. 此外,也可以是一并使用利用多个无线信道的并行发送和公知的空分复用技术(黒崎外、MIMO于卞氺/W二J: 0 100Mbit/s全実現卞3広帯域移動通信用SDM —COFDM方式(O提案、電子情報通信学会技術研究報告、A*P2001-96, RCS2001-135 (2001-10))的系统中。 Further, it can be used together with a plurality of wireless channels of parallel transmission and the known spatial division multiplexing (Kurosaki outside, the MIMO to Bian Shui / W two J: 0 100Mbit / s full Minoru now Bian 3 Hiroshima Bands domain mobile communication SDM -COFDM mode (O proposal, IEICE technical report, a * P2001-96, RCS2001-135 (2001-10)) system.

图41示出了本发明第二十六实施方式的发送方处理步骤的流程图。 FIG 41 shows a flowchart transmitting side processing procedure of a twenty-sixth embodiment of the present invention. 图42示出了本发明第二十六实施方式接收方处理步骤的流程图。 FIG 42 shows a flowchart of process steps recipient twenty sixth embodiment of the present invention. 图43和图44示出了本发明第二十六实施方式的操作例(1) 、 (2) 、 (3)的时 Figure 43 and 44 shows an operation example (1) of the twenty sixth embodiment of the present invention, (2), (3)

序图。 Sequence FIG. 这里,在无线站1和2之间设有无线信道#1、 #2,并假定在定时tl,无线信道#1、弁2处于空闲状态。 Here, between the radio station 1 and the wireless channel # 2 is provided with 1, # 2, and assuming the timing tl, the wireless channel # 1, 2 Bian idle. 此外,假定无线信道弁l、 #2具有相互发生泄漏的关系,并假定如存在这种泄漏则无法接收无线分组。 Further, assume that wireless channels Bian l, # 2 have a mutual relationship between the occurrence of leakage, and assuming the presence of such as leakage can not receive radio packets.

在图41中,发送方无线站检索空闲状态的无线信道,并使用空闲状态的多个无线信道发送无线分组(S431、 S432)。 In FIG 41, the transmission side radio station to retrieve the idle wireless channel, and a plurality of idle radio channels using transmit wireless packets (S431, S432). 接着,利用多个无线信道同时发送的无线分组的发送时间进行比较,并判定在各无线信道的发送过程中在成对的无线信道中是否发生无发送时间(空闲状态),即是否存在从进行发送的无线信道受泄漏影响的成对的无线信道(S433)。 Subsequently, the transmission time of the wireless packets simultaneously transmitted using a plurality of radio channels are compared, and it is determined whether the non-transmission time (idle state) occurs in the process of sending a radio channel in the radio channel pair, i.e., whether there be from a pair of radio channel radio channel affected by the leak sent (S433). 这里, 当存在成对的无线信道时,在利用多个无线信道同时发送的无线分组的发送时间中检测最长的发送时间Tmax,计算出在该发送时间Tmax上加上预定时间而得的发送禁止时间。 Here, when there is a pair of wireless channels, the detection of the longest time Tmax transmission time of the wireless packet transmission using a plurality of radio channels simultaneously transmitted, obtained by calculating the transmission time plus the predetermined transmission time Tmax disabled time. 然后,向与发送最长发送时间Tmax的无线分组的无线信道成对的无线信道的NAV设定所述发送禁止时间(S434)。 Then, the radio channel setting NAV radio channels paired with the wireless packet transmission maximum time Tmax of the transmission of the transmission prohibition time (S434). 其中,S433、 S434的处理例如与图3所示的第二实施方式的S103〜S109的处理对应。 Wherein processing corresponds, S433, and processing of the second embodiment shown in FIG. 3, for example of the S103~S109 of S434.

下面与第二十五实施方式相同,启动用于接收针对所发送无线分组的ACK分组的ACK定时器,并监视在ACK超时之前是否接收到ACK分组(S404、 S405、 S406)。 Hereinafter the same twenty-fifth embodiment, the activation timer for receiving ACK ACK packet for the transmitted packet radio, and monitors whether the ACK packet is received before the ACK timeout (S404, S405, S406). 这里,在没有接收到ACK分组而ACK超时的情况下结束发送处理,并根据需要进行无线分组的重发处理(S407)。 Finishes transmission processing in the case where the ACK is not received the ACK packet timeout, and wireless packet retransmission processing (S407) as required.

另一方面,当在ACK超时之前接收了ACK分组时,停止ACK定时器(S408),并确认ACK分组中是否有成对无线信道的NAV信息(S409)。 On the other hand, when the time-out before receiving an ACK packet ACK, ACK timer is stopped (S408), and confirms whether there NAV information (S409) an ACK packet radio channel pairs. 这里,在附加了NAV信息的ACK分组的情况下,根据该NAV信息更新成对无线信道中设定的NAV (S410),结束发送处理(S4U)。 Here, in a case where the additional information is the ACK packet NAV, update the NAV based on the NAV information (S410) radio channel set pair, finishes transmission processing (S4U). 此外,在没有NAV信息的普通帧格式的ACK分组的情况下, 结束发送处理(S411)。 Further, in the case where no ACK packet NAV conventional frame format information, transmission end processing (S411).

在图42中,若接收方无线站顺利接收了利用多个无线信道发送的发给本站的无线分组,则比较各个接收时间,判定在各无线信道的接收过程中在其他无线信道中是否发生无接收时间,即判定在与发送方无线站成对的无线信道中是否设定了NAV (S441、 S442)。 In Figure 42, if the receiving wireless station successfully receives the packet sent to the wireless station using a plurality of radio channels transmitted, the comparing respective reception time, it is determined whether the process occurs in the received radio channel in other radio channel no reception time, i.e., the determination in pair with the sender wireless station whether the wireless channel is set NAV (S441, S442). 如果在各无线信道的接收过程中存在发生无接收时间的无线信道,则与第二十五实施方式同样地 If no radio channel reception time occurs in the presence of a radio channel during reception, the twenty-fifth embodiment in the same manner

通过步骤S422、 S423、 S424生成并发送附加了成对无线信道的NAV信息的ACK分组。 In step S422, S423, S424 and generates an ACK packet to transmit additional wireless channel pair NAV information. 另一方面,若不具有发生无接收时间的无线信道,则生成并发送不含有NAV信息的ACK分组(普通格式)(S442、 S443 、 S424)。 On the other hand, if the radio channel having a non-reception time of occurrence, and transmits an ACK packet is generated (a common format) (S442, S443, S424) does not contain the NAV information.

下面参考图43和图44,详细说明根据上述发送方无线站1和接收方无线站2的处理步骤的操作例。 Below with reference to FIGS. 43 and 44, the operation described in detail in Example 1 and the process steps of receiving wireless station 2 based on the transmission side radio station.

在图43 (1)中,在定时tl无线信道#1、 #2处于空闲状态,从而利用各无线信道分别进行无线分组的发送。 In (1) in FIG. 43, at the timing tl wireless channels # 1, # 2 in an idle state, whereby the respective wireless channels are transmitted using the wireless packet. 这里,假设无线信道#1的无线分组的发送时间长于无线信道#2的无线分组的发送时间。 Here, assume that the transmission time of the wireless packet radio channel is longer than the wireless channel # 1 # 2 of the radio packet transmission time. 无线站1在定时tl检测空闲状态的无线信道弁l、 #2,并分别发送以无线站2为目的地的无线分组。 Wireless station 1 at a timing tl idle wireless channel detection Benten l, # 2, and transmits a radio packet to the destination wireless station 2, respectively. 此时,由于无线信道#2的无线分组的发送时间较短,所以对于与无线信道#1成对的无线信道#2,把在无线分组#]的无线分组的发送时间上相加预定时间而得的发送禁止时间设给NAV。 At this time, due to the short radio packet radio channel # 2, transmission time, the radio channel for the wireless channel # # 21 pairs, in addition to the transmission time of the wireless packet #] wireless packet a predetermined time transmission prohibition time was set to NAV. 然后无线站l等待从无线站2发送的ACK分组的接收。 L station then waits to receive a wireless ACK packet transmitted from the wireless station 2.

另一方面,在无线站2中,在顺利接收了无线信道#1、 #2的无线分组之后,判定出在无线信道#1的接收过程中在无线信道#2上发生了无接收时间(在无线信道弁2的接收过程中在无线信道#1上没有发生无接收时间)。 After the other hand, in the wireless station 2, the wireless packet successfully received wireless channels # 1, # 2, and determines that occurs over a wireless channel # 2 during the reception of the wireless channel # 1 is no reception time (in Bian radio channel during reception of the non-reception time 2 did not occur over a wireless channel # 1). 从而,在无线信道井2中,生成并发送针对所接收无线分组的普通格式的ACK分组(不含有NAV信息的分组)。 Thus, in the wireless channel well 2, generates and transmits an ACK packet for the general format of the received radio packet (containing packet information NAV). 另一方面,在无线信道#1中,判定成对无线信道井2中设定的NAV,并将该NAV信息附加到ACK分组中进行发送。 On the other hand, in the wireless channel # 1, the radio channel is determined that the pair of wells in the second setting NAV, and the NAV information to an ACK packet transmitted.

无线站1在接收了针对通过无线信道井1发送的无线分组的ACK分组之后,根据ACK分组中附加的NAV信息,更新无线信道#2中设定的NAV。 A radio station after receiving an ACK packet for wireless transmission through a wireless channel well 1 a packet, the ACK packet in accordance with the additional information NAV, update the radio channel set NAV # 2. 这里,删除在定时tl设定的NAV,并根据ACK分组中附加的NAV信息重新进行设定,从而NAV被縮短。 Here, at the timing tl delete setting NAV, and re-set according to the ACK packet NAV additional information, so that NAV is shortened.

这样,通过在接收方无线站2对无线信道井1、 #2的无线分组接收时间进行比较,可知在发送方给无线信道弁2设定了NAV。 Thus, by comparing the reception time in radio receiving wireless station packet radio channel 2 wells 1, # 2, seen in the radio channel to the sender 2 Benten set NAV. 从而,通过在无线站2向针对无线信道弁1的无线分组的ACK分组附加无线信道弁2的NAV信息,能够在发送方无线站2更新无线信道#2中设定的NAV。 Thus, by the second packet radio channel Bian additional 2 NAV information to the wireless ACK packet for the wireless channel in a wireless Bian station 1, 2 can be updated NAV wireless channel # 2 is set in the transmission side radio station.

即,在无线站1中,即使在不能接收无线信道#2的无线分组的情况下, That is, in a radio station, the radio channel can not be received even in a case where the radio packet # 2,

也能够进行使用无线站2的无线信道#2的NAV设定,从而能够将在定时tl设定的潜在的NAV更新为最优的。 It can be performed using the wireless channel # 2 NAV setting the radio station 2, thereby potentially update the NAV can be set at a timing tl to be optimal.

此外,如图43 (2)所示,虽然由无线站1在定时tl给无线信道#2 设定了NAV,但当在无线信道#2中没有接收信号时情况如下。 Further, 43 (2), although the wireless station 1 to the wireless channels at the timing TL # 2 the NAV is set, but not in the wireless channel # 2 when the received signal as follows. 附加到从无线站2发送的ACK分组中的NAV信息为"0",无线站1在接收了该ACK分组时更新(删除)无线信道#2中设定的NAV。 NAV information attached to the ACK packet transmitted from the radio station 2 is "0", the radio station 1 receives the update (delete) the wireless channel # 2 NAV set in the ACK packet. 由此,无线信道井2中潜在设定的NAV随着ACK分组的接收而被删除,从而可以利用无线信道弁2。 Accordingly, the NAV is set in the potential well as a wireless channel 2 to receive an ACK packet is deleted, so that the wireless channel can be utilized Bian 2.

此外,如图44所示的第二十六实施方式的操作例(3)那样,当利用空闲状态的无线信道#1、 #2发送的无线分组的发送时间相等时(完全并行发送时),在一个无线信道的发送过程中另一无线信道中不会发生无发送时间(空闲状态)。 In addition, the operation of the twenty-sixth embodiment shown in FIG. 44 (3) above, when 1, equal transmission time of the wireless packet # 2 (complete when sent in parallel) by using the idle wireless channel #, non-transmission time (idle state) does not occur during the transmission of another radio channel in a radio channel. 因此,此时由于发送方无线站无需给各无线信道设定发送禁止时间,所以接收方无线站只要返回不含NAV信息的ACK分组即可。 Therefore, at this time since the transmission side radio station to the respective wireless channels without setting the transmission prohibition period, so long as the receiving wireless station returns an ACK packet to the free NAV information.

附加有成对无线信道的NAV信息的ACK分组例如通过在报头中设置用来记载成对无线信道和其NAV信息的字段,可从接收方无线站向发送方无线站进行传达。 Additional radio channel paired NAV information provided by, for example, the ACK packet header according to the radio channel pairs and their NAV information fields, may be communicated to the transmission side radio station from the receiving wireless station. 在发送方无线站,当通过ACK帧的CRC检验确认了顺利接收时,只要参考该字段更新成对无线信道的NAV即可。 In the transmit-side STA, when it is confirmed by a CRC check successfully receives the ACK frame, as long as the reference radio channel NAV field updated to paired.

[无线分组通信装置的构成例] [Example configuration of wireless packet communication apparatus]

图45示出了与本发明第一实施方式至第二十六实施方式中的无线分组通信方法对应的无线分组通信装置的构成例。 FIG 45 shows a configuration example of a wireless packet communication apparatus and a wireless packet communication method according to a first embodiment of the twenty-sixth embodiment of the present invention corresponds. 这里,示出了能够使用三个无线信道#1、 #2、 #3并行收发三个无线分组的无线分组通信装置的结构,但该并行数可任意设定。 Here, it illustrates three possible to use wireless channels # 1, # 2, # configuration of the wireless packet communication apparatus in a wireless packet transceiver 3 three parallel, but the number can be set in parallel. 另外,当在每个无线信道中使用空分复用时,能够并行收发与多个无线信道的各空分复用数的总和相当的并行发送数的无线分组,这里省略了对空分复用的说明。 Further, when using space division multiplexing in each wireless channel, the transceiver can be in parallel with the plurality of packet radio division multiplexed radio channel corresponding to the sum of the number of parallel transmission of each blank is omitted here space division multiplexing instruction of. 此外,在分别独立使用多个无线信道中的每一个的场合也一样。 Further, in each case independently of each of the plurality of radio channels is the same.

图中,无线分组通信装置包括:收发处理部10-1、 10-2、 10-3,发送缓冲器21,数据分组生成部22,数据帧管理部23,信道状态管理部24,数据分发发送控制部25,分组顺序管理部26以及报头删除部27。 FIG., The wireless packet communication apparatus comprising: a reception processing unit 10-1, 10-2, 10-3, a transmission buffer 21, a data packet generation unit 22, a data frame managing unit 23, a channel state management unit 24, the distribution data transmission The control unit 25, a packet sequence management unit 26 and a header deleting section 27.

收发处理部10-1、- 10-2、 10-3使用相互不同的无线信道弁l、 #2、 # 3来进行无线通信。 Reception processing unit 10-1 - 10-2 10-3 mutually different wireless channels Benten l, # 2, # 3 to perform wireless communication. 这些无线信道由于无线频率等相互不同而彼此独立, 可同时使用多个无线信道进行无线通信。 Since the radio frequency radio channels are different from each other and independent from each other, radio channels can be used simultaneously for a plurality of wireless communication. 各收发处理部10包括调制器11、无线发送部12、天线13、无线接收部14、解调器15、分组选择部16 及载波侦听部17。 Each reception processing unit 10 includes a modulator 11, a radio transmission unit 12, an antenna 13, radio reception section 14, a demodulator 15, a packet selection unit 16 and the carrier sensing unit 17.

其他无线分组通信装置经由彼此不同的无线信道#1、 #2、 #3发送的无线信号通过各自对应的收发处理部10-1、 10-2、 10-3的天线13而被输入到无线接收部14中。 Other wireless packet communication apparatus different from each other via wireless channels # 1, # 2, # 3 transmits a wireless signal by the respective corresponding reception processing unit 10-1, 10-2, 10-3 antenna 13 is input to the radio receiving section 14. 各无线信道对应的无线接收部14对输入的无线信号进行包括频率转换、滤波、正交检波及AD转换在内的接收处理。 The radio reception unit 14 of radio channels corresponding to the reception processing including frequency conversion, filtering, quadrature detection and AD conversion, including the radio signal input. 另外,当各无线接收部14上连接的天线13不用于发送时,各无线信道中的无线传播路径上的无线信号始终被输入各无线接收部14中,因此将表示各无线信道的接收电场强度的RSSI信号输出给载波侦听部17。 Further, when each of the antenna connector 14 on the radio receiving unit 13 does not transmit a radio signal on each radio channel of the radio propagation path is constantly input of each radio reception section 14, thus indicating the received field strength of each radio channel the RSSI signal to the carrier sensing unit 17. 此外,当通过与无线接收部14相对应的无线信道接收了无线信号时,经接收处理的基带信号被输入解调器15中。 Further, when a radio channel by the corresponding radio reception unit 14 receives a radio signal, the reception processing of the baseband signal is input to the demodulator 15.

解调器15对从无线接收部14输入的基带信号分别进行解调处理,向分组选择部16输出所得到的数据分组或应答分组(第一、第二十五、第二十六实施方式的ACK分组)。 Demodulator 15 demodulates the input from the baseband signal processing of the radio reception section 14, respectively, or the packet acknowledgment packet (the first, twenty-fifth to the packet selection unit 16 outputs the data obtained, the twenty-sixth embodiment ACK packet). 分组选择部16对所输入的数据分组进行CRC校验,并将没有检测到错误的数据分组输出给载波侦听部17 (用于后述的NAV设定)。 A data packet selection unit 16 on the input packet CRC check, and no output error is detected the data packet to the carrier sense unit 17 (NAV set for later). 并且在数据分组被正确无误地接收时,识别该数据分组是否是发给本站的。 And when the data packet is received correctly, identifying whether the data packet is sent to this site. S卩,检查各数据分组的目的地ID是否与本站一致,将发给本站的数据分组输入给分组顺序管理部26,并且使用没有图示的应答分组生成部生成应答分组并将其输出给调制器11,进行应答处理。 Whether S Jie, check the packet destination ID coincides with the site, the site will send data packets to an input packet sequence management unit 26, using the acknowledgment packet generating unit and not shown generates a response packet and outputs to modulator 11 performs response processing. 另外,当不是发给本站的数据分组的情况下,在分组选择部16舍弃该分组。 Further, when the data packet is not sent to the case of the site, the packet selecting unit 16 discard the packet.

分组顺序管理部26检查所输入的各数据分组上附加的序列号,并按合适的顺序,即按序列号顺序重新排列接收到的多个数据分组。 Each data packet sequence management unit 26 checks on the additional input packet sequence number, and the appropriate order, i.e., by rearranging the plurality of sequence numbers of data packets received. 并将该结果作为接收数据分组序列输出给报头删除部27。 And the result is output as a received data packet sequence to delete the header portion 27. 报头删除部27从所输入的接收数据分组序列中包含的各个数据分组删去报头部分,并将其作为接 Deleting each data packet header portion of the header portion 27 includes deleting the received data packet from the input sequence, and as a ground

收数据帧而输出。 Outputting received data frame.

载波侦听部17输入RSSI信号后,对用该信号表示的接收电场强度的值与预先设定的阈值进行比较。 After the RSSI signal 17 input carrier sense unit, received electric field intensity value represented by the signal is compared with a threshold value set in advance. 然后,如果预定期间内的接收电场强度连续小于阈值的状态继续的话,则判定为所分配的无线信道处于空闲状态, 否则判定为所分配的无线信道繁忙。 Then, if the reception electric field intensity in a predetermined period of continuous state is smaller than the threshold value continues, it is determined that the wireless channel is idle is assigned, or it is determined that the allocated radio channel is busy. 与各无线信道相对应的载波侦听部17 将该判定结果作为载波侦听结果而输出。 As a result of carrier sense output a determination result corresponding to each radio channel unit 17 the carrier sense. 另外,在各收发处理部10中, In addition, each transceiver 10 in the processing unit,

当天线13处于发送状态时不向载波侦听部17输入RSSI信号。 RSSI signal is not input when the antenna 13 is transmitted to the carrier sense unit 17 state. 此外,当天线13已经处于发送状态时,不能使用同一天线13将其他的数据分组作为无线信号同时发送。 Further, when the antenna 13 is already in a transmission state, the other data packet 13 transmitted as a radio signal can not simultaneously use the same antenna. 从而,各载波侦听部17在没有RSSI信号的输入时,输出表示所分配无线信道繁忙的载波侦听结果。 Thus, each of the carrier sensing unit 17 when the RSSI signal is not input, outputs a busy radio channels assigned carrier sense.

载波侦听部17将从分组选择器16输入的分组内记载的占空时间设给NAV。 Duty time described in the input packet from the carrier sense unit 17 is provided to the packet selector 16 NAV. 然后,根据该NAV值和从无线接收部14输入的RSSI信号,判定所对应的无线信道处于空闲状态还是忙碌状态。 Then, based on the NAV value and the RSSI signal input from the radio reception unit 14, determines the corresponding radio channel is idle or busy state. 从与各无线信道对应的载波侦听部17输出的载波侦听结果CS1〜CS3被输入到信道状态管理部24 中。 CS1~CS3 from a carrier sense result output corresponding to the respective wireless channels carrier sensing unit 17 is input to the channel state management unit 24. 信道状态管理部24基于与各无线信道相对应的载波侦听结果来管理各无线信道的空闲状态,并向数据帧管理部23通知空闲状态的无线信道及空闲信道数等信息(图45, a)。 A channel state management unit 24 based on the carrier sense result of each radio channel corresponding to an idle state management of wireless channels, and the data frame managing unit 23 notifies the idle wireless channel and the number of other idle channel information (FIG. 45, a ).

另一方面,要发送的发送数据帧序列被输入发送缓冲器21中,进行缓冲。 On the other hand, the transmission data sequence of frames to be transmitted is input in the transmission buffer 21, buffering. 该发送数据帧序列由一个或多个数据帧构成。 The transmission data is composed of a sequence of frames or more frames of data. 发送缓冲器21逐次向数据帧管理部23通知当前保存的数据帧数目、作为目的地的无线分组通信装置的ID信息、数据大小、表示缓冲器上位置的地址信息等(b)。 A transmission buffer 21 sequentially notifies the currently stored number of data frames to the data frame managing unit 23 as the ID information of the wireless packet communication apparatus of the destination, data size, address information indicating positions on the buffer, etc. (b).

数据帧管理部23基于从发送缓冲器21通知的与每个目的地无线站ID 的数据帧相关的信息,以及从信道状态管理部24通知的与无线信道相关的信息,确定从哪个数据帧如何生成数据分组以及通过哪个无线信道进行发送,并分别通知给发送缓冲器21、数据分组生成部22以及数据分组分发发送控制部25 (c, d, e)。 Data frame managing unit 23 based on the destination radio station ID of each data frame transmission buffer 21 notifies the related information and information related to the radio channel notified from the channel state management unit 24, which determines how the data from the frame and generating a data packet transmitted by a wireless channel which, respectively, and notifies the transmission buffer 21, a data packet generation unit 22, and the distribution data packet transmission control unit 25 (c, d, e). 例如,当空闲状态的无线信道数N少于发送缓冲器21中等待发送的数据帧数K时,将空闲状态的无线信道数N确定为并行发送的数据分组数,并向发送缓冲器21通知从K个数据帧指定N个数据帧的地址信息(c)。 For example, when the number N of the idle wireless channel transmit buffer 21 is less than the number of data frames waiting to be sent in K, the number N of the idle wireless channel determines the number of data packets transmitted to parallel buffer 21 and sends notifications address information of the specified frame N (c) data frames from the K data. 此外,向数据分组生成部22通知用于从自 In addition, the notification data from the packet generation unit 22 from a

发送缓冲器21输入的数据帧生成N个数据分组的信息fd)。 Data input buffer 21 transmit frame generating N data packet information fd). 此外,向分组分发发送控制部25指示在数据分组生成部22中生成的N个数据分组与空闲状态的无线信道之间的对应(e)。 Further, the distribution control unit 25 transmits the packet to indicate corresponding (e) between the radio channel 22 in a data packet generation unit generates N data packets with idle state.

发送缓冲器21向数据分组生成部22输出被输出指定的数据帧(f)。 Transmitting output buffer 21 designated data frames (f) output data to the packet generation section 22. 数据分组生成部22从各数据帧提取数据区域来生成多个数据块,并在该数据块上附加报头部和作为检错码的CRC码(FCS部)来生成数据分组,其中该报头部中包括作为所述数据分组的目的地的目的地无线站的ID 信息以及表示数据帧顺序的序列号等控制信息。 A data packet generation unit 22 extracts data from the respective regions to generate a plurality of data blocks, and adds a header section and a code error detection code CRC (FCS unit) generates data packets in the data block, wherein the header ID information includes a portion of the destination wireless station of the data packet destination and sequence data representing the sequence number of frame control information. 在数据分组生成部22中可以生成分组长度--致的多个数据块,所生成各个数据块的分组长度不同也可以。 In the data packet generation unit 22 may generate the packet length - consistent plurality of data blocks, generating the different length of each packet data block may be. 此外,控制信息中还包含在接收方无线站接收了数据分组时将其转换为原来的数据帧所需的信息。 Further, the control information further includes receiving the information packet will be converted to the desired frame in the original data receiving wireless station. 分组分发发送控制部25将从数据分组生成部22输入的各数据分组与各无线信道对应起来。 The distribution unit 25 a control packet from the transmission packet generation unit 22 inputs the respective data packet to each radio channel association.

这种对应的结果是,与无线信道#1对应的数据分组被输入到接收处理部10-1内的调制器11中,与无线信道#2对应的数据分组被输入到收发处理部10-2内的调制器11中,与无线信道#3对应的数据分组被输入到收发处理部10-3内的调制器11中。 This corresponds to a result, the wireless channel # 1 and the corresponding data packet is input to the modulator 10-1 in the reception processing unit 11, a radio channel corresponding to # 2 data packet is input to the reception processing unit 10-2 in the modulator 11, the data packet corresponding to the wireless channel # 3 is input to the modulator in the reception processing unit 11 10-3. 各调制器11在从数据分发发送控制部25输入数据分组后,对该数据分组实施预定的调制处理,然后输出给无线发送部12。 Each modulator 11, after transmitting the distribution data control unit 25 from the incoming data packets, the data packets embodiment a predetermined modulation process, and output to the radio transmission unit 12. 各无线发送部12对从调制器U输入一的经调制处理的数据分组实施包括DA转换、频率转换、滤波及功率放大在内的发送处理,并作为数据分组通过各自对应的无线信道从天线13发送出去。 Each of the radio transmission unit 12 from the modulator input U data processing a modulated packet transmission process embodiment includes a DA conversion, frequency conversion, power amplification and filtering, including, as data packets respectively corresponding radio channel through the antenna 13 from sent out.

基于数据帧管理部23的控制,信道状态管理部24对载波侦听部17的NAV进行第一实施方式至第二十六实施方式中所示的对于各无线信道的发送禁止时间的设定、删除、更新等处理。 For twenty-sixth embodiment shown embodiment to the first embodiment described based on NAV DATA control-frame managing unit 23, the channel state management unit 24 the carrier sense unit 17 for each radio channel transmission prohibition time setting, delete, update process. 例如,数据帧管理部23对于在用于并行收发的无线信道之中需要最长收发时间Tmax的无线信道以外的无线信道,作为虚拟载波侦听中使用的发送禁止时间,计算在Tmax上相加Ts而得的时间(Tmax + Ts),并通过信道状态管理部24设定到载波侦听部17的与各无线信道对应的NAV中。 For example, a data frame managing unit 23 for a radio channel other than the radio channel used in the parallel transmission and reception requires the longest time Tmax transceiver radio channel, a transmission prohibition time using the virtual carrier sensing is calculated by adding on the Tmax Ts obtained by time (Tmax + Ts), and the channel 24 is set to the state management unit corresponding to the carrier sense unit 17 in the respective wireless channels NAV. 由此,在使用多个无线信道时,避免了由于向邻接信道发生泄漏等而导致的无法接收无线分组并无法进行NAV设定的状况。 Accordingly, when a plurality of radio channels, avoiding radio condition can not receive the packet and set NAV can not occur due to leakage caused by adjacent channels. [第二十七实施方式] [Twenty-seventh Embodiment]

图46是本发明第二十七实施方式的流程图。 FIG 46 is a flowchart of a second embodiment of the seventh embodiment of the present invention. 图47是本发明第二十七实施方式的操作例。 FIG 47 is an operation example of the second embodiment of the seventh embodiment of the present invention. 本实施方式表示的是应用于利用在一个无线信道中复用的多个子信道的场合的例子。 The present embodiment shows an example of a plurality of subchannels in a wireless channel multiplexing is applied using the case. 本站在利用一个无线信道的部分子信道进行收发期间,由于无法接收由对方无线站使用其他子信道发送的无线分组,所以在利用多个子信道的时候也存在图50所示的问题。 Site during use part of a radio channel for transmitting and receiving subchannels, since not received by the other radio station using radio sub channels transmitting other packets, so there is a problem shown in FIG. 50, when using a plurality of subchannels.

这里,设有子信道#1、 #2、 #3、 #4,并假定在定时tl子信道# 2、弁4通过利用根据在此前接收的无线分组设定的NAV的虚拟载波侦听被判定为忙碌状态。 Here, with a subchannel # 1, # 2, # 3, # 4, and assuming subchannel # 2 at timing tl, Bian 4 is determined by using the virtual carrier sensing in a wireless packet received previously set the NAV It is busy. 此外,由于子信道弁i、 #2、 #3、 #4共用一个收发器,所以如果部分子信道处于收发当中,则无法进行利用其他子信道的收发。 Further, since the sub Bian i, # 2, # 3, # 4 share a transceiver, if it is part of a transceiver among the subchannels is not possible to use the transmission of other subchannels.

首先,在定时tl检索空闲状态的子信道(S501)。 First, retrieve the idle subchannel (S501) at the timing tl. 这里,进行利用RSSI的物理载波侦听和利用NAV的虚拟载波侦听(发送禁止时间的检测),并在这两种检测中均没有检测到载波时判定为空闲状态。 Here, the physical carrier sensing using the RSSI and the virtual carrier sensing using the NAV (detection time of the transmission prohibition), and was not detected when the determined carrier to the idle state in both assays. 接着,使用空闲状态的子信道根据待收发的数据分组的数目进行并行收发(S502)。 Next, the parallel subchannels idle transceivers (S502) according to the number of data packets to be transmitted and received. 然后检测并行收发的无线分组的收发时间之中最长的收发时间Tmax (S503)。 Then in the radio packet transmission and reception times of the detected longest transceiver transceiver parallel time Tmax (S503). 这里,子信道弁1、弁3处于空闲状态,从而使用子信道#1、 #3进行两个无线分组的收发,在此状态下检测出其中最长的收发时间Tmax (这里是子信道# 1的收发时间Tl)。 Here, Bian subchannel 1, Benten 3 in an idle state, thereby using the subchannels # 1, # 3 transmits and receives radio two packets, the transceiver detects the longest time Tmax in this state (herein, sub-channel # 1 the transmission and reception times Tl).

接着对子信道#1、 #2、 #3、 #4中的每一个进行S504〜S509的处理。 Next, each of the subchannels # 1, # 2, # 3, # 4 for processing in the S504~S509. 首先,检测以子信道弁i (i是1、 2、 3、 4)收发的无线分组的收发时间Ti (S504)。 First, detection of subchannels Bian i (i is 1, 2, 3, 4) transmitting and receiving radio packet transmission and reception times Ti (S504). 若由于处于忙碌状态而没有无线分组的收发,则Ti = 0 (这里T2 == T4 = 0)。 Because if the busy state without a transceiver radio packet, then Ti = 0 (where T2 == T4 = 0). 接着,比较最长收发时间Tmax和在子信道井i收发的无线分组的收发时间Ti (S505)。 Next, compare the maximum time Tmax and the transceiver in a wireless packet transmission and reception times for well i subchannel of a transceiver Ti (S505). 这里,由于子信道#1的收发时间Tl最长(Tmax 二Tl),并且除了子信道ftl之外均为Tmax > Ti,所以以下处理的对象是除子信道# 1之外的子信道。 Here, since the transmission and reception times Tl longest subchannel # 1 (Tmax two Tl), and in addition are sub ftl Tmax> Ti, the following processing is therefore an object other than the subchannel is a subchannel # 1.

对于满足Tmax > Ti的子信道弁i,检测各自NAV中设定的发送禁止时间Tsi (S506)。 For satisfying Tmax> Ti Bian subchannel i, NAV set in each detected transmission prohibition time Tsi (S506). 这里,对于子信道井2、 #4,检测出Ts2、 Ts4,对于子信道#3,检测出Ts3 = 0。 Here, the subchannel well 2, # 4, detected Ts2, Ts4, for a subchannel # 3, detected Ts3 = 0. 接着,对在Tmax上相加预定时间Ts而得 Next, in addition to the predetermined time Ts obtained Tmax

的时间(Tmax + Ts)和已设定的发送禁止时间Tsi进行比较,并且若Tmax + Ts 〉 Tsi,则将Tmax + Ts作为新的发送禁止时间设给NAV,然后对下一个子信道进行处理(S507、 S508、 S509)。 Time (Tmax + Ts) and the set transmission prohibition time Tsi compared, and if Tmax + Ts> Tsi, then Tmax + Ts as a new transmission prohibition time is set for the NAV, and then process the next subchannel (S507, S508, S509). 另外,在不满足Tmax > Ti的子信道井i (这里为# 1),或者不满足Tmax + Ts > Tsi的子信道弁i (这里为#4)的情况下,对该子信道不进行任何处理,对下一个子信道进行处理(S505、 S507、 S509)。 Further, not satisfied Tmax> Ti subchannel I wells (here, # 1), or does not meet Tmax + Ts> Tsi subchannel Bian I (here, # 4) in the case of the subchannel without any treatment, the next subchannel is processed (S505, S507, S509).

由此,对于具有最长收发时间Tmax的子信道#1,不进行NAV设定,对于子信道#2、 #3,将发送禁止时间(Tmax + Ts)设给NAV,对于子信道弁4,保持NAV中当前的发送禁止时间(Ts4)。 Thus, for a transceiver having the longest time Tmax subchannels # 1, not NAV set for the subchannels # 2, # 3, the transmission prohibition period (Tmax + Ts) set to the NAV for the subchannel Bian 4, NAV maintained in the current transmission prohibition time (Ts4). 因此,在下一个定时t2,子信道弁2、 #3、 #4通过利用NAV的虚拟载波侦听被判定为忙碌状态,从而仅利用子信道#1发送无线分组。 Thus, in the next timing T2, Bian subchannel 2, # 3, # 4 is determined as a busy state by using the NAV virtual carrier sensing, thereby using only one radio packet transmission subchannel #.

这样,通过给由于子信道#1的接收发送而无法进行接收处理的子信道#2、 #3的NAV设定发送禁止时间(Tmax + Ts),能够避免发生如图50所示的无法接收无线分组并无法进行NAV设定的状况。 In this way, reception processing can not be performed due to the subchannel subchannel # 1 is received by the transmission to the # 2, NAV setting # 3 transmission prohibition time (Tmax + Ts), can be avoided as shown in FIG 50 can not receive the radio NAV grouped and can not set conditions. [无线分组通信装置的结构例] [Example configuration of wireless packet communication apparatus]

图48示出了与第二十七实施方式中的无线分组通信方法对应的无线分组通信装置的结构例。 48 shows a configuration example of a packet radio communication device with a wireless packet communication method of the second embodiment of the seventh embodiment corresponding to. 这里,示出了能够使用三个子信道#1、 #2、 # 3并行收发三个无线分组的无线分组通信装置的结构,但该并行数可任意设定。 Here, a parallel 3 shows the structure of a transceiver radio packet communication apparatus of a wireless packet can be used three three subchannels # 1, # 2, #, but the number can be set in parallel.

图中,无线分组通信装置包括:收发处理部10,发送缓冲器21,数据样式生成部22,数据帧管理部23,信道状态管理部24,分组分发发送控制部25,分组顺序管理部26以及报头删除部27。 FIG., The wireless packet communication apparatus comprising: a reception processing unit 10, a transmission buffer 21, the data pattern generation unit 22, a data frame managing unit 23, a channel state management unit 24, packet distributing the transmission control unit 25, packet sequence management unit 26, and header deleting section 27.

收发处理部10被构成为对子信道#1、弁2、 #3的信号进行复用/分离从而使用一个无线信道进行无线通信的结构。 Reception processing unit 10 is configured for the subchannels # 1, Bian 2, # 3 is a signal multiplexing / separation thereby using a wireless channel in a wireless communication configuration. 这些子信道例如无线频率不同,从而能够复用于一个无线信道上。 Different radio frequency subchannels for example, can be multiplexed on a radio channel. 收发处理部IO包括调制器11、 无线发送部12、天线13、无线接收部14、解调器15、分组选择部16、载波侦听部17、复用器18以及解复用器19。 IO transceiver includes a modulator processing unit 11, a radio transmission unit 12, an antenna 13, radio reception section 14, a demodulator 15, a packet selecting unit 16, the carrier sense unit 17, a multiplexer 18 and a demultiplexer 19.

从其他无线分组通信装置发送来的无线信号经由收发处理部10的天线13被输入到无线接收部14中。 Packet transmitted from another wireless communication device radio signal 13 is input to the radio receiving unit 14 via the antenna 10 of the reception processing unit. 无线接收部14对输入的无线信号进行包 Wireless receiving unit 14 performs wireless packet signal input

括频率转换、滤波、正交检波及AD转换在内的接收处理,并将经接收处理的基带信号输出给解调器15。 Comprising reception processing including frequency conversion, filtering, quadrature detection and AD conversion, and outputs the base band signal to the reception process by the demodulator 15. 另外,当天线13不被用于发送时,无线传播路径上的无线信号始终被输入无线接收部14中,因此将表示接收电场强度的RSSI信号输入给载波侦听部17。 Further, when the antenna 13 is not used to transmit wireless signals on radio propagation path is constantly input radio receiving unit 14, thus indicating the received electric field intensity RSSI signal is input to the carrier sense unit 17.

解调器15对从无线接收部14输入的基带信号进行解调处理,并通过解复用器19向分组选择部16输出各子信道的数据分组。 Demodulator 15 inputs the baseband signal from the radio reception section 14 performs demodulation processing, and outputs the data packet of each sub-channel by the demultiplexer 19 to the packet selection unit 16. 分组选择部16对各子信道的数据分组进行CRC校验,并将没有检测到错误的数据分组输出给载波侦听部17 (用于后述的NAV设定)。 The packet selection unit 16 the data packet CRC check each sub-channel, and outputs no error is detected the data packet to the carrier sense unit 17 (NAV set for later). 并且在数据分组被正确无误地接收时,识别该数据分组是否是发给本站的。 And when the data packet is received correctly, identifying whether the data packet is sent to this site. 即,检查各数据分组的目的地ID是否与本站一致,将发给本站的数据分组输入给分组顺序管理部26。 That is, to check whether each data packet ID coincides with the destination site, the site will be sent to the packet input to the data packet sequence management unit 26. 另外,当不是发给本站的数据分组的情况下,在分组选择部16舍弃该分组。 Further, when the data packet is not sent to the case of the site, the packet selecting unit 16 discard the packet.

分组顺序管理部26检查所输入的各数据分组上附加的序列号,并按合适的顺序,即按序列号顺序重新排列接收到的多个数据分组。 Each data packet sequence management unit 26 checks on the additional input packet sequence number, and the appropriate order, i.e., by rearranging the plurality of sequence numbers of data packets received. 并将该结果作为接收数据分组序列输出给报头删除部27。 And the result is output as a received data packet sequence to delete the header portion 27. 报头删除部27从所输入的接收数据分组序列中包含的各个数据分组删去报头部分,并将其作为接收数据帧序列而输出。 Deleting each data header portion 27 included in the received data sequence input packet deleting packet header portion, and the frame as received data sequence output.

载波侦听部17检测与各子信道对应的RSSI信号,并比较通过该信号表示的接收电场强度的值与预先设定的阈值。 Carrier sensing unit 17 detects the RSSI signal corresponding to each sub-channel, and by comparing the value of received electric field intensity of the signal representation with a threshold value set in advance. 然后,对于每个子信道,如果预定期间内的接收电场强度连续小于阈值的状态继续的话,则判定为该子信道处于空闲状态,否则判定为子信道繁忙。 Then, for each subchannel, if the received electric field intensity within a predetermined period of continuous state is less than the threshold value continues, it is determined that the subchannel is idle, otherwise, determines that the subchannel busy. 另外,在收发处理部10 中,当天线13处于发送状态时不向载波侦听部17输入RSSI信号。 Not the RSSI signal input to the carrier sense unit 17 Further, in the reception processing unit 10, the antenna 13 in a transmission state. 此外,当天线13己经处于发送状态时,不能使用同一天线13将其他的数据分组作为无线信号同时发送。 Further, when the antenna 13 is already transmitting state, you can not use the same antenna 13 to other data packets transmitted as a wireless signal simultaneously. 从而,载波侦听部17在没有RSSI信号的输入时,输出表示子信道繁忙的载波侦听结果。 Thus, the carrier sensing unit 17 when the RSSI signal is not input, outputs a carrier sense subchannel busy.

载波侦听部17将从分组选择器16输入的分组内记载的占空时间设给NAV。 Duty time described in the input packet from the carrier sense unit 17 is provided to the packet selector 16 NAV. 然后,根据该NAV值和从无线接收部14输入的RSSI信号,判定 Then, based on the NAV value and the RSSI signal input from the radio reception unit 14, determines

所对应的子信道处于空闲状态还是忙碌状态。 Corresponding subchannel is idle or busy state. 从载波侦听部n输出的与 N outputted from the carrier sense unit and

各子信道对应的载波侦听结果CS1〜CS3被输入到信道状态管理部24中。 Corresponding to each sub-channel carrier sense CS1~CS3 is input to the channel state management unit 24.

信道状态管理部24基于与各子信道相对应的载波侦听结果来管理各子信道的空闲状态,并向数据帧管理部23通知空闲状态的子信道及空闲信道 A channel state management unit 24 based on the carrier sense result of each sub-channel corresponding to each sub-channel to manage idle state, idle state and inform the data frame 23 managing unit vacant channel and subchannel

数等信息(图48, a)。 Number and other information (FIG. 48, a).

另一方面,要发送的发送数据帧序列被输入发送缓冲器21中,进行缓冲。 On the other hand, the transmission data sequence of frames to be transmitted is input in the transmission buffer 21, buffering. 该发送数据帧序列由一个或多个数据帧构成。 The transmission data is composed of a sequence of frames or more frames of data. 发送缓冲器21逐次向数据帧管理部23通知当前保存的数据帧的数目、作为目的地的无线分组通信装置的ID信息、数据大小、表示缓冲器上的位置的地址信息等(b)。 23 the number of transmission buffer 21 sequentially notifies the currently stored data frame to data frame managing unit, the ID information as a wireless packet communication apparatus of the destination, data size, address information indicating a position on the buffer or the like (b).

数据帧管理部23基于从发送缓冲器21通知的与每个目的地无线站ID 的数据帧相关的信息,以及从信道状态管理部24通知的与子信道相关的信息,确定从哪个数据帧如何生成数据分组,并分别通知给发送缓冲器21、数据分组生成部22以及数据分组分发发送控制部25 (c, d, e)。 Data frame managing unit 23 based on the destination radio station ID of each data frame transmission buffer 21 notifies the associated information, and notification information 24 from the channel state management unit associated with the subchannel, how to determine which data from frame generating a data packet, and notifies to the transmission buffer 21, a data packet generation unit 22, and the distribution data packet transmission control unit 25 (c, d, e). 例如,当空闲状态的无线信道数N少于发送缓冲器21中等待发送的数据帧数K时,将空闲状态的无线信道数N确定为并行发送的数据分组数,并向发送缓冲器21通知从K个数据帧指定N个数据帧的地址信息(c)。 For example, when the number N of the idle wireless channel transmit buffer 21 is less than the number of data frames waiting to be sent in K, the number N of the idle wireless channel determines the number of data packets transmitted to parallel buffer 21 and sends notifications address information of the specified frame N (c) data frames from the K data. 此外,向数据分组生成部22通知用于从自发送缓冲器21输入的数据帧生成N个数据分组的信息(d)。 In addition, it notifies the packet generation unit 22 for generating frame information (d) N data packets from the transmission data from the input buffer 21. 此外,向分组分发发送控制部25指示在数据分组生成部22中生成的N个数据分组与空闲状态的子信道之间的对应(e)。 Further, the distribution control unit 25 transmits the packet to indicate corresponding (e) between the subchannels 22 in the data packet generation unit generates the N data packets with idle state.

发送缓冲器21向数据分组生成部22输出被输出指定的数据帧(f)。 Transmitting output buffer 21 designated data frames (f) output data to the packet generation section 22. 数据分组生成部22从各数据帧提取数据区域来生成多个数据块,并在该数据块上附加报头部和作为检错码的CRC码(FCS部)来生成数据分组,其中该报头部中包括作为所述数据分组的目的地的目的地无线站的ID 信息以及表示数据帧顺序的序列号等控制信息。 A data packet generation unit 22 extracts data from the respective regions to generate a plurality of data blocks, and adds a header section and a code error detection code CRC (FCS unit) generates data packets in the data block, wherein the header ID information includes a portion of the destination wireless station of the data packet destination and sequence data representing the sequence number of frame control information. 在数据分组生成部22中可以生成分组长度一致的多个数据块,所生成各个数据块的分组长度不同也可以。 In the data packet generation unit 22 may generate a plurality of data blocks of the packet length consistent, different packet length of each data block may be generated. 此外,控制信息中还包含在接收方无线站接收了数据分组时将其转换为原来的数据帧所需的信息。 Further, the control information further includes receiving the information packet will be converted to the desired frame in the original data receiving wireless station. 分组分发发送控制部25将从数据分组生成部22输入的各数据分组与各子信道对应起来。 The distribution unit 25 a control packet from the transmission packet generation unit 22 inputs the respective data packets are associated with each sub-channel.

例如,当三个子信道弁l、 #2、弁3全部处于空闲状态,从而分组分发发送控制部25全部选择三个子信道弁1、 #2、 #3,并且同时有三个数 For example, when three sub Bian L, # 2, 3 are all in the idle state Bian, thereby distributing the packet transmission control unit 25 to select all three subchannels Benten 1, # 2, # 3, and while the number three

据分组被输入发送缓冲器21中时,只要将这三个数据分组依次分别与子 According to a packet transmission buffer 21 is input, as long as these three data packets are successively sub

信道#1、 #2、 #3对应起来即可。 Channel # 1, # 2, # 3 can association. 与各子信道对应的数据分组通过复用器18被输入调制器11中。 Each sub-channel corresponding to the data packet is input to the modulator 11 through a multiplexer 18. 调制器11在从分组分发发送控制部25输入数据分组后,对该数据分组实施预定的调制处理,然后输出给无线发送部12。 Modulator 11 after transmitting the control packet distributing unit 25 from the incoming data packets, the data packets embodiment a predetermined modulation process, and output to the radio transmission unit 12. 无线发送部12对从调制器11输入的经调制处理的数据分组实施包括DA转换、频率转换、滤波及功率放大在内的发送处理,并作为数据分组通过从天线13发送出去。 A wireless transmission unit 12 via the packet data modulation processing input from the modulator 11 performs transmission processing including DA conversion, frequency conversion, power amplification and filtering, including, as data packets transmitted from an antenna 13 through.

基于数据帧管理部23的控制,信道状态管理部24对载波侦听部17的NAV进行第二十七实施方式中所示的对于各子信道的发送禁止时间的设定等处理。 For twenty-seventh embodiment shown in NAV DATA based on the control-frame managing unit 23, a channel state management unit 24 the carrier sense processing unit 17 for setting the transmission prohibition time of each sub-channel, and the like. 例如,数据帧管理部23对于在用于并行收发的子信道之中需要最长收发时间Tmax的子信道以外的子信道,作为虚拟载波侦听中使用的发送禁止时间,计算在Tmax上相加Ts而得的时间(Tmax + Ts),并通过信道状态管理部24设定到载波侦听部17的与各子信道对应的NAV 中。 For example, a data frame managing unit 23 other than the need for the longest subchannel time Tmax transceiver subchannel among subchannels for parallel transmission and reception, a transmission prohibition time using the virtual carrier sensing, the sum is calculated on the Tmax Ts obtained by time (Tmax + Ts), and the management unit 24 sets the channel state to each sub-channel corresponding to the NAV and the carrier sense unit 17. 由此,在使用多个子信道时,避免了由于向邻接信道发生泄漏等而导致的无法接收无线分组并无法进行NAV设定的状况。 Accordingly, when a plurality of sub-channels, avoiding radio condition can not receive the packet and set NAV can not occur due to leakage caused by adjacent channels.

工业实用性 Industrial Applicability

本发明针对由于受邻接信道的泄漏影响而无法顺利接收的成对的无线信道,通过自发地设定根据无线分组的发送时间的发送禁止时间,从而可以使虚拟载波侦听正常工作。 Due to leakage effects for the pair of adjacent channels can not be successfully received by the wireless channel of the present invention, by spontaneous transmission prohibition period set in accordance with the transmission time of the radio packet, so that the virtual carrier sensing can work.

并且,在自发设定发送禁止时间的无线信道中,当无线分组被顺利接收或者从通信对方通知了发送禁止时间的信息时,通过删除/更新当前发送 And, transmission prohibition time of the wireless channel spontaneous setting, when the radio packet was successfully received or the transmission prohibition period information is notified from a communication partner, by deleting / updating the current transmission

禁止时间,可以避免多余的发送禁止时间的设定,进而可实现效率的改 Prohibition time, to avoid unnecessary transmission prohibition time is set, and thus can achieve efficiency change

盖口。 Cover mouth.

此外,当生成了发送数据时,如果存在设定了发送禁止时间的无线信道,则待机至该发送禁止时间结束,由此可避免连续设定发送禁止时间。 Further, when transmission data is generated, if there is a radio channel transmission prohibition time is set, the transmission prohibition waits until the time has elapsed, thereby avoiding the transmission prohibition period set continuously.

此外,当生成了发送数据时,根据己设定的发送禁止时间,选择是待机至该发送禁止时间结束,还是选择不进行待机而使用空闲状态的无线信道发送无线分组的处理,从而可设定待机时间的上限,并可避免连续设定发送禁止时间。 Further, when transmission data is generated according to the set transmission inhibition time already, is the selection process to the standby transmission prohibition time ends, or chooses not to use the standby idle wireless channel transmitting the wireless packets, thereby setting the upper limit standby time, and avoid continuous transmission prohibition time is set.

Claims (40)

1.一种无线分组通信方法,在发送方无线站和一个或一个以上的接收方无线站之间设有多个无线信道,发送方无线站利用被物理载波侦听和虚拟载波侦听双方判定为空闲状态的多个无线信道并行发送多个无线分组,所述物理载波侦听根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听判定在设定的发送禁止时间中为忙碌状态,该方法的特征在于, 所述发送方无线站在用于并行发送的无线信道中对需要最长发送时间Tmax的无线信道以外的被动无线信道,设定在所述时间Tmax上相加预定时间Ts而得的时间(Tmax+Ts),以作为用于虚拟载波侦听的发送禁止时间。 A wireless packet communication method, a wireless station between a sender and one or more receiving wireless station is provided with a plurality of wireless channels, the physical carrier sensing and virtual carrier both the sender radio station listeners is determined using a plurality of wireless channels to the idle state of a plurality of simultaneously transmitted radio packet, the physical carrier sense is determined according to the reception power of a busy or idle, the virtual carrier sensing determines transmission prohibition time is set as busy state, the method being characterized in that said passive radio channel transmission side radio station other than the radio channel used for parallel transmission of transmission requires the longest time Tmax radio channel, is set in addition to the predetermined time Tmax time Ts obtained by the time (Tmax + Ts), to prohibit a transmission time for the virtual carrier sensing.
2. 如权利要求1所述的无线分组通信方法,其特征在于, 当为用于所述虚拟载波侦听而已设定在所述被动无线信道中的发送禁止时间短于(Tmax + Ts)时,所述发送方无线站设定(Tmax + Ts)作为新的发送禁止时间。 2. The wireless packet communication method according to claim 1, wherein, when for the virtual carrier sensing is set only in the passive radio channel transmission prohibition time is shorter than (Tmax + Ts) , the sending wireless station set (Tmax + Ts) as a new transmission prohibition time.
3. —种无线分组通信方法,在发送方无线站和一个或一个以上的接收方无线站之间设有多个无线信道,发送方无线站利用被物理载波侦听和虚拟载波侦听双方判定为空闲状态的多个无线信道并行发送多个无线分组, 所述物理载波侦听根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听判定在设定的发送禁止时间中为忙碌状态,该方法的特征在于,所述发送方无线站在多个无线信道之中预先确定互相给予发送功率泄漏影响的无线信道的组合,并在各组合的无线信道中针对需要最长发送时间Ti的无线信道以外的被动无线信道,设定在所述Ti上相加预定时间Ts 而得的时间(Ti + Ts),以作为用于虚拟载波侦听的发送禁止时间。 3 - Species wireless packet communication method, a wireless station between a sender and one or more receiving wireless station is provided with a plurality of wireless channels, the physical carrier sensing and virtual carrier both the sender radio station listeners is determined using a plurality of wireless channels to the idle state of a plurality of simultaneously transmitted radio packet, the physical carrier sense is determined according to the reception power of a busy or idle, the virtual carrier sensing determines transmission prohibition time is set as busy state, the method being characterized in that said transmission side radio station among the plurality of radio channels each given a predetermined combination of the transmission power of the radio channel affected by the leak, and the wireless channel for each combination of transmission requires the longest time Ti passive radio channel other than the wireless channel set obtained by adding a predetermined time period Ts (Ti + Ts) on the Ti, as the transmission inhibition time for the virtual carrier sensing.
4. 如权利要求3所述的无线分组通信方法,其特征在于, 当为用于所述虚拟载波侦听而已设定在所述被动无线信道中的发送禁止时间短于(Ti + Ts)时,所述发送方无线站设定(Ti + Ts)作为新的发送禁止时间。 4. The wireless packet communication method according to claim 3, wherein, when for the virtual carrier sensing is set only in the passive radio channel transmission prohibition time is shorter than (Ti + Ts) , setting the sender radio station (Ti + Ts) as a new transmission prohibition time.
5. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述发送方无线站检测所述被动无线信道上的由来自发送无线信道的泄漏引起的接收功率,并对该接收功率大于等于预定阈值的被动无线信道设定所述发送禁止时间。 5. The wireless packet communication method according to any one of any one of claims 1 to 4, wherein the transmission power of the transmission received by the radio channel on the side of the leakage detecting radio station from the radio channel caused by passive, and greater than or equal to the predetermined threshold value of the reception power of the radio channel configuration passive transmission prohibition time.
6. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述发送方无线站进行所述被动无线信道的接收信号的检错,并对检测到错误的被动无线信道设定所述发送禁止时间。 6. The wireless packet communication method according to any 4-1 claim, characterized in that the sender of the passive radio station radio channel error detection of the received signal, and an error is detected passive setting the radio channel transmission prohibition time.
7. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在所述发送方无线站当以所述被动无线信道接收了无线分组时,进行所接收无线分组的检错,并对于顺利接收了发给本站的无线分组的无线信道,在其中设有所述发送禁止时间的情况下删除该发送禁止时间,同时在所接收无线分组的报头中设有占空时间的情况下重新设定与其对应的发送禁止时间。 7. The wireless packet communication method according to any 4-1 claim, wherein when said passive radio channel to a packet received in the wireless transmission side radio station performs error detection on the received packet radio , and for successfully received packets sent to the wireless radio channel site, to remove the prohibition time in which the transmission is provided with a case where the transmission prohibition time, while the duty time is provided in the received radio packet header resetting a case where the corresponding transmission prohibition time.
8. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在所述发送方无线站如果在产生了发送数据时存在设有所述发送禁止时间的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组。 8. The wireless packet communication method according to claim 4 claims, with the presence of a radio channel transmission prohibition time if the transmission data is generated in which the sender radio station, then waits until after the transmission prohibition period end, the wireless transmission packet is determined using the idle wireless channels.
9. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述发送方无线站如果在产生了发送数据时存在设有所述发送禁止时间的无线信道,并且该最长的发送禁止时间小于预定阈值,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,或者如果其中最长的发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 9. The wireless packet communication method according to any one of the 4-1 claims, wherein said transmitting the radio channel transmission prohibition time provided side STA is generated if there is transmission data, and the longest transmission prohibition time is less than a predetermined threshold value, to prohibit the transmission after the end time, using the wireless transmission packet is determined to be idle in a standby radio channel, or if the longest transmission prohibition time is greater than a predetermined threshold value is equal to , without waiting for the end of the transmission prohibition time can be determined by using the idle wireless channel is a wireless transmission packet.
10. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述发送方无线站如果在产生了发送数据时存在设有所述发送禁止时间的无线信道,则以预定的概率不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 10. The wireless packet communication method according to any one of the 4-1 claims, wherein said transmitting the radio channel transmission prohibition time provided side STA is generated if there is transmission data, the at a predetermined probability is not waiting for the end of the transmission prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
11. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述发送方无线站在产生了发送数据时,在待机至所有无线信道被所述物理载波侦听和所述虚拟载波侦听判定为空闲状态之后,利用所述被判定为空闲状态的无线信道发送无线分组。 11. The wireless packet communication method according to any 4-1 claim, characterized in that the sender radio station generates transmission data, waits until all radio channels in the physical carrier sensing is and after the virtual carrier sensing determines that the idle state, using the wireless transmission packet is determined to be the idle wireless channels.
12. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述发送方无线站在产生了发送数据时,待机至所有无线信道被所述物理载波侦听和所述虚拟载波侦听判定为空闲状态之后,利用所述被判定为空闲状态的无线信道发送无线分组,或者如果设有所述发送禁止时间的无线信道的最长发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 12. The wireless packet communication method according to any one of claims 1 to 4, characterized in that the sender radio station generates transmission data, waiting until all the radio channels are physical carrier sensing and after the virtual carrier sensing determines that the idle state is determined by using the idle wireless channel transmitting the wireless packet, or if provided with the radio channel transmission prohibition time is greater than the maximum transmission time is equal to the predetermined prohibition threshold value, without waiting for the end of the transmission prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
13. 如权利要求12所述的无线分组通信方法,其特征在于, 所述发送方无线站在存在设有所述发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 13. The wireless packet communication method according to claim 12, wherein the presence of the sender radio station provided with the wireless packet transmission prohibition time, if the set time of the transmission prohibition exists below a predetermined threshold wireless channel, then after the transmission prohibition waits until the end time is determined by using the idle wireless channel transmitting the wireless packet, if not the set radio channel transmission prohibition time is less than a predetermined threshold value, without waiting for the prohibiting transmission end time, packet radio transmits is determined by using the idle wireless channels.
14. 如权利要求13所述的无线分组通信方法,其特征在于, 所述发送方无线站在存在设有所述发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有所述发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 14. The wireless packet communication method according to claim 13, wherein the presence of the sender radio station with the radio channel transmission prohibition time, and there is also the set transmission prohibition time is less than a predetermined threshold value in the case of wireless channel, after the standby time to end the transmission prohibition, whether there returns to the radio channel transmission prohibition time determination of the presence of, or all of the wireless channel is in an idle state determination.
15. 如权利要求11所述的无线分组通信方法,其特征在于, 所述发送方无线站在存在设有所述发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 15. The wireless packet communication method according to claim 11, wherein the presence of the sender radio station provided with the wireless packet transmission prohibition time, if the set time of the transmission prohibition exists below a predetermined threshold wireless channel, then after the transmission prohibition waits until the end time is determined by using the idle wireless channel transmitting the wireless packet, if not the set radio channel transmission prohibition time is less than a predetermined threshold value, without waiting for the prohibiting transmission end time, packet radio transmits is determined by using the idle wireless channels.
16. 如权利要求15所述的无线分组通信方法,其特征在于,所述发送方无线站在存在设有所述发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有所述发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 16. The wireless packet communication method according to claim 15, wherein the presence of the sender radio station with the radio channel transmission prohibition time, and there is also the set transmission prohibition time is less than a predetermined threshold value in the case of wireless channel, after the standby time to end the transmission prohibition, whether there returns to the radio channel transmission prohibition time determination of the presence of, or all of the wireless channel is in an idle state determination.
17. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在所述发送方无线站在产生了发送数据时,待机至所有的无线信道被所述物理载波侦听和所述虚拟载波侦听判定为处于空闲状态,或者以预定的概率不进行待机,利用所述被判定为空闲状态的无线信道发送无线分组。 17. The wireless packet communication method according to any one of any one of claims 1 to 4, wherein the transmission data generating standing in the wireless transmission side, waits until all the radio channels are physical carrier sensing and the virtual carrier sensing determines that the idle or in standby is not predetermined probability, using the wireless transmission packet is determined to be idle wireless channels.
18. 如权利要求1至4中任一项所述的无线分组通信方法,其特征在于,所述接收方无线站在所接收无线分组中设有发送禁止时间时,将该发送禁止时间设定到进行接收的无线信道中,并且在顺利接收了发给本站的无线分组时,向所述发送方无线站发送包含所述被动无线信道中设定的发送禁止时间的应答分组,所述发送方无线站在从发送所述无线分组之后的预定时间内接收了对应的应答分组时,使用该应答分组中包含的被动无线信道的发送禁止时间,更新所述被动无线信道中设定的发送禁止时间。 18. A radio packet communication method according to any one of four claims, characterized in that the recipient received the radio station provided with the wireless packet transmission prohibition period, the transmission prohibited period setting when receiving the radio channel, and successfully received the packet sent to the radio station, comprising the passive acknowledgment packet radio channel set in the transmission prohibition period to the wireless station transmitting the transmission side, the transmission wireless station side has received the response packet corresponding to the predetermined time after transmitting said packet radio when using passive radio channel transmission prohibition time included in the response packet, updates the passive radio channel set transmission prohibition time.
19. 一种无线分组通信方法,在发送方无线站和一个或一个以上的接收方无线站之间设有复用于一个无线信道上的多个子信道,发送方无线站通过物理载波侦听和虛拟载波侦听双方对每个子信道进行空闲状态的判定,并将多个无线分组分别分配到被判定为空闲状态的多个子信道上进行并行发送,其中,所述物理载波侦听根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听判定在设定的发送禁止时间中为忙碌状态, 该方法的特征在于,所述发送方无线站在用于并行发送的子信道中针对需要最长发送时间Tmax的子信道以外的子信道,设定在所述时间Tmax上相加预定时间Ts 而得的时间(Tmax + Ts),以作为用于虚拟载波侦听的发送禁止时间。 19. A wireless packet communication method, a wireless station between a sender and one or more receiving wireless station is provided with a plurality of multiplexed subchannels on a wireless channel, the wireless station by the sender and physical carrier sensing virtual carrier sensing determines both an idle state for each sub-channel, and a plurality of radio packets are allocated to the idle state is determined to be transmitted in parallel a plurality of sub-channels, wherein the physical carrier sense based on the received power determined busy or idle, the virtual carrier sensing determines the set transmission prohibition time busy state, the method being characterized in that said transmission side radio station for parallel transmission of subchannels required for longest subchannel other than the subchannel transmission time Tmax, the set time Ts obtained by adding a predetermined time (Tmax + Ts) at the time Tmax, as the transmission inhibition time for the virtual carrier sensing.
20. 如权利要求19所述的无线分组通信方法,其特征在于, 当为用于所述虚拟载波侦听而己设定在所述子信道中的发送禁止时间短于(Tmax + Ts)时,所述发送方无线站设定(Tmax + Ts)作为新的发送禁止时间。 20. The wireless packet communication method according to claim 19, wherein, when for the virtual carrier sense already set in the transmission prohibition time is shorter than the subchannels (Tmax + Ts) , the sending wireless station set (Tmax + Ts) as a new transmission prohibition time.
21. —种无线分组通信装置,在发送方无线站和一个或一个以上的接收方无线站之间设有多个无线信道,发送方无线站利用被物理载波侦听单元和虚拟载波侦听单元双方判定为空闲状态的多个无线信道并行发送多个无线分组,所述物理载波侦听单元根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听单元判定在设定的发送禁止时间中为忙碌状态,该装置的特征在于,所述发送方无线站的虚拟载波侦听单元在用于并行发送的无线信道中针对需要最长发送时间Tmax的无线信道以外的被动无线信道,设定在所述时间Tmax上相加预定时间Ts而得的时间(Tmax + Ts),以作为所述发送禁止时间。 21. - kind of wireless packet communication apparatus, a wireless station between a sender and one or more receiving wireless station is provided with a plurality of radio channels, the radio station is using the sender physical carrier sensing and virtual carrier sensing unit cell both determined to be idle radio channels of the plurality of parallel transmitting a plurality of radio packet, the physical carrier sensing determines that the reception power unit is busy or idle, the virtual carrier sensing means determines the transmission setting prohibition time busy state, the device is characterized in that the sender radio station other than the virtual carrier sensing unit transmits the longest time Tmax wireless channel passive radio channel, a radio channel is provided for the need for parallel transmission of Ts obtained by adding a given predetermined time period (Tmax + Ts) in the time Tmax, as the transmission prohibition time.
22. 如权利要求21所述的无线分组通信装置,其特征在于, 当对所述被动无线信道已设定的发送禁止时间短于(Tmax + Ts)时,所述发送方无线站的虚拟载波侦听单元设定(Tmax + Ts)作为新的发送禁止时间。 22. The wireless packet communication apparatus according to claim 21, wherein, when the passive radio channel transmission prohibition is set shorter than (Tmax + Ts), said virtual carrier transmission side radio station listening setting unit (Tmax + Ts) as a new transmission prohibition time.
23. —种无线分组通信装置,在发送方无线站和一个或一个以上的接收方无线站之间设有多个无线信道,发送方无线站利用被物理载波侦听单元和虚拟载波侦听单元双方判定为空闲状态的多个无线信道并行发送多个无线分组,所述物理载波侦听单元根据接收功率来判定是忙碌状态还是空闲状态,所述虚拟载波侦听单元判定在设定的发送禁止时间中为忙碌状态,该装置的特征在于,所述发送方无线站的虚拟载波侦听单元在多个无线信道之中预先确定互相给予发送功率泄漏影响的无线信道的组合,并在各组合的无线信道中针对需要最长发送时间Ti的无线信道以外的被动无线信道,设定在所述Ti上相加预定时间Ts而得的时间(Ti + Ts),以作为发送禁止时间。 23. - kind of wireless packet communication apparatus, a wireless station between a sender and one or more receiving wireless station is provided with a plurality of radio channels, the radio station is using the sender physical carrier sensing and virtual carrier sensing unit cell both determined to be idle radio channels of the plurality of parallel transmitting a plurality of radio packet, the physical carrier sensing determines that the reception power unit is busy or idle, the virtual carrier sensing means determines the transmission setting prohibition time busy state, the device is characterized in that the virtual carrier sensing unit of the sender radio station among the plurality of radio channels in the predetermined radio channel given transmission power leakage effects in combination with each other, and each combination except for the passive wireless channel requires the longest time Ti radio channel transmission radio channel, setting the predetermined time Ts obtained by adding the time (Ti + Ts) on the Ti, as the transmission inhibition time.
24. 如权利要求23所述的无线分组通信装置,其特征在于, 当已对所述被动无线信道设定的发送禁止时间短于(Ti + Ts)时,所述发送方无线站的虚拟载波侦听单元设定(Ti + Ts)作为新的发送禁止时间。 24. The wireless packet communication apparatus according to claim 23, wherein, when the passive radio channel has been set is shorter than the transmission prohibition period (Ti + Ts), said virtual carrier transmission side radio station listening setting unit (Ti + Ts) as a new transmission prohibition time.
25. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述发送方无线站包括用于检测所述被动无线信道上的由来自发送无线信道的泄漏引起的接收功率的单元,所述虚拟载波侦听单元对所述接收功率大于等于预定阈值的被动无线信道设定所述发送禁止时间。 25. The wireless packet communication apparatus as claimed in any one of claims 21 to 24, wherein said transmitting side radio station comprises means for detecting the radio channel caused by a leak from the transmission radio channel of the passive power receiving unit, the virtual carrier sensing unit is equal to the received power is greater than a predetermined threshold value set to the passive radio channel transmission prohibition time.
26. 如权利要求21至24中任一项所述的无线分组通信装置,其特征所述发送方无线站包括进行所述被动无线信道的接收信号检错的单元,所述虚拟载波侦听单元对检测到错误的被动无线信道设定所述发送禁止时间。 26. The wireless packet communication apparatus 21 to 24 of any one of the preceding claims, wherein the transmission side radio station comprises means for receiving said passive radio channel error detection signal, the virtual carrier sensing unit the detected error passive transmission prohibition time of the radio channel configuration.
27. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于'所述发送方无线站包括当在所述被动无线信道上接收了无线分组时进行所接收无线分组的检错的单元,所述虚拟载波侦听单元对于顺利接收了发给本站的无线分组的无线信道,在其中设有所述发送禁止时间的情况下删除该发送禁止时间,并在所接收无线分组的报头中设有占空时间的情况下重新设定与其对应的发送禁止时间。 27. The wireless packet communication apparatus as claimed in any one of claims 21 to 24, characterized in that 'the transmission side radio station includes a wireless packet when the received packet has been received in the passive wireless radio channel the error detection unit, the virtual carrier sensing means for successfully received packets sent to the wireless radio channel site, to remove the prohibition time in which the transmission is provided with a case where the transmission prohibition time, and the received radio header of the packet is provided to reset the case where the duty time corresponding to the transmission inhibition time.
28. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述发送方无线站的虚拟载波侦听单元如果在产生了发送数据时存在设有所述发送禁止时间的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组。 28. The wireless packet communication apparatus 21 according to claim 24, characterized in that the sender radio station if there is virtual carrier sensing unit when generating the transmission data with the transmission prohibition radio channel time, then sent to the waiting time after the end of the ban, using the wireless transmission packet is determined to be idle wireless channels.
29. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述发送方无线站的虚拟载波侦听单元如果在产生了发送数据时存在设有所述发送禁止时间的无线信道,并且该最长的发送禁止时间小于预定阈值,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,或者如果其中最长的发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 29. The wireless packet communication apparatus 21 according to claim 24, characterized in that the sender radio station if there is virtual carrier sensing unit when generating the transmission data with the transmission prohibition radio channel time, and the longest transmission prohibition time is less than a predetermined threshold value, to prohibit the transmission after the end time, using the wireless transmission packet is determined to be idle in a standby radio channel, or if the longest transmission prohibition time is a predetermined threshold value, the end of the transmission without waiting prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
30. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述发送方无线站的虚拟载波侦听单元如果在产生了发送数据时存在设有所述发送禁止时间的无线信道,则以预定的概率不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 30. The wireless packet communication apparatus 21 according to claim 24, characterized in that the sender radio station if there is virtual carrier sensing unit when generating the transmission data with the transmission prohibition radio channel time, places a predetermined probability is not waiting for the end of the transmission prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
31. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述发送方无线站的物理载波侦听单元和所述虚拟载波侦听单元在产生了发送数据时,在待机至所有无线信道被判定为空闲状态之后,利用所述被判定为空闲状态的无线信道发送无线分组。 31. The wireless packet communication apparatus according to any one of claims 21 to 24, wherein the transmit-side STA of the physical carrier sensing and virtual carrier sensing unit generating a transmission data unit , to transmit all waiting packets in the radio is determined to be the idle wireless channel is a radio channel determined to be idle after use.
32. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述发送方无线站的物理载波侦听单元和所述虚拟载波侦听单元在产生了发送数据时,在待机至所有无线信道被判定为空闲状态之后,利用所述被判定为空闲状态的无线信道发送无线分组,或者如果设有所述发送禁止时间的无线信道的最长发送禁止时间大于等于预定阈值,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 32. The wireless packet communication apparatus according to any one of claims 21 to 24, wherein the transmit-side STA of the physical carrier sensing and virtual carrier sensing unit generating a transmission data unit after waiting until all radio channels are determined to be idle, it is determined by using the idle wireless channel transmitting the wireless packet, or if provided with the radio channel transmission prohibition time of the longest duration exceeds the predetermined transmission prohibition threshold, the end of the transmission without waiting prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
33. 如权利要求32所述的无线分组通信装置,其特征在于, 所述发送方无线站的虚拟载波侦听单元在存在设有所述发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 33. The wireless packet communication apparatus according to claim 32, wherein the transmit-side STA of virtual carrier sensing means when there is provided a packet radio transmission prohibition time, if the set radio channel time is less than a predetermined threshold value of the transmission prohibition, then after the transmission prohibition waits until the end time is determined by using the idle wireless channel transmitting the wireless packet, the set if no transmission prohibition time is less than a predetermined threshold value, the radio channel, the end of the transmission without waiting prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
34. 如权利要求33所述的无线分组通信装置,其特征在于, 所述发送方无线站的虚拟载波侦听单元在存在设有所述发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有听述发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 34. The wireless packet communication apparatus according to claim 33, wherein the virtual carrier sensing unit transmitting side radio station in a radio channel with the presence of transmission prohibition time, and there is also the set radio channel transmission prohibition time is less than a predetermined threshold value, waits until after the end of the transmission prohibition period, returns to the sounds with the presence or absence of transmission inhibition time determined radio channel, or all of the wireless channel is in an idle state determination.
35. 如权利要求29所述的无线分组通信装置,其特征在于, 所述发送方无线站的虚拟载波侦听单元在存在设有所述发送禁止时间的无线分组时,如果存在所设定的发送禁止时间小于预定阈值的无线信道,则在待机至该发送禁止时间结束之后,利用所述被判定为空闲状态的无线信道发送无线分组,如果没有所设定的发送禁止时间小于预定阈值的无线信道,则不等待该发送禁止时间的结束,就利用所述被判定为空闲状态的无线信道发送无线分组。 35. The wireless packet communication apparatus according to claim 29, wherein the transmit-side STA of virtual carrier sensing means when there is provided a packet radio transmission prohibition time, if the set radio channel time is less than a predetermined threshold value of the transmission prohibition, then after the transmission prohibition waits until the end time is determined by using the idle wireless channel transmitting the wireless packet, the set if no transmission prohibition time is less than a predetermined threshold value, the radio channel, the end of the transmission without waiting prohibition time, transmits the packet using the radio is determined to be idle wireless channels.
36. 如权利要求35所述的无线分组通信装置,其特征在于, 所述发送方无线站的虚拟载波侦听单元在存在设有所述发送禁止时间的无线信道,并且还存在所设定的发送禁止时间小于预定阈值的无线信道的情况下,在待机至该发送禁止时间结束之后,再次返回到是否存在设有所述发送禁止时间的无线信道的判定,或者所有无线信道是否处于空闲状态的判定中。 36. The wireless packet communication apparatus according to claim 35, wherein the virtual carrier sensing unit transmitting side radio station in a radio channel with the presence of transmission prohibition time, and there is also the set radio channel transmission prohibition time is less than a predetermined threshold value, waits until after the end of the transmission prohibition period, whether there returns to the radio channel transmission prohibition time determination of the presence of, or all of the wireless channel is in an idle state determination.
37. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于, 所述发送方无线站的物理载波侦听单元和所述虚拟载波侦听单元在产生了发送数据时,待机至所有的无线信道被判定为处于空闲状态,或者以预定的概率不进行待机,利用所述被判定为空闲状态的无线信道发送无线分组。 37. The wireless packet communication apparatus according to any one of claims 21 to 24, wherein the transmit-side STA of the physical carrier sensing and virtual carrier sensing unit generating a transmission data unit , waits until all of the radio channels is determined to be in an idle state, a predetermined probability or not standby, the wireless transmission packet is determined by using the idle wireless channels.
38. 如权利要求21至24中任一项所述的无线分组通信装置,其特征在于,所述接收方无线站包括如下单元,该单元在所接收无线分组中设有发送禁止时间时,将该发送禁止时间设定到进行接收的无线信道中,并且在顺利接收了发给本站的无线分组时,向所述发送方无线站发送包含所述被动无线信道中设定的发送禁止时间的应答分组,所述发送方无线站包括如下单元,该单元在从发送所述无线分组之后的预定时间内接收了对应的应答分组时,使用该应答分组中包含的被动无线信道的发送禁止时间,更新所述被动无线信道中设定的发送禁止时间。 38. The wireless packet communication apparatus 21 according to claim 24, characterized in that the station comprises radio receiver unit which has received the transmission prohibition period in a wireless packet, the the transmission prohibition time is set to receive the radio channel, and when successfully receiving a packet sent to the wireless station, comprising a passive radio channel set in the transmission prohibition period to the wireless station transmitting the transmission side when the reply packet, the sender radio station comprises means, which receives a corresponding response packet within a predetermined time after the transmission packet from a wireless, passive radio channel using the transmission prohibition time included in the response packet, updating the radio channel transmission inhibition time set in the passive.
39. -—种无线分组通信装置,包括:一个收发器,通过复用多个子信道来利用一个无线信道进行接收发送;物理载波侦听单元,对于每个所述子信道,根据接收功率来判定处于忙碌状态还是空闲状态;虚拟载波侦听单元,对于每个所述子信道,判定在其中设定的发送禁止时间内处于忙碌状态;其中将多个无线分组分别分配到通过所述物理载波侦听单元和所述虚拟载波侦听单元双方被判定为空闲状态的多个子信道上,并通过所述收发器进行并行收发,该装置的特征在于,所述虚拟载波侦听单元在用于并行发送的子信道中对需要最长发送时间Tmax的子信道以外的子信道,设定在所述Tmax上相加预定时间Ts而得的时间(Tmax + Ts),以作为发送禁止时间。 39. - kind of wireless packet communication apparatus, comprising: a transceiver, a wireless channel for transmitting and receiving multiplexed by using a plurality of subchannels; physical carrier sensing means for each of the subchannels, determined according to the received power is busy or idle; virtual carrier sensing means for each of the subchannels, determined in which the transmission inhibition time set in the busy state; wherein a plurality of radio packets are allocated to the physical carrier sense by listening means and the virtual carrier sensing unit is determined to be idle both a plurality of subchannels, and the transceiver by a transceiver in parallel, the apparatus characterized in that the virtual carrier sensing means for parallel transmission in subchannel other than the subchannel transmission requires the longest time Tmax subchannel, setting time Ts obtained by adding a predetermined time (Tmax + Ts) on the Tmax, as the transmission inhibition time.
40. 如权利要求39所述的无线分组通信装置,其特征在于, 当已设定在所述子信道中的发送禁止时间短于(Tmax + Ts)时,所述虚拟载波侦听单元设定(Tmax + Ts)作为新的发送禁止时间。 40. The wireless packet communication apparatus according to claim 39, wherein, when the subchannels has been set in the transmission prohibition time is shorter than (Tmax + Ts), said setting virtual carrier sensing unit (Tmax + Ts) as a new transmission prohibition time.
CN 200480009706 2003-07-14 2004-07-14 Radio packet communication method and radio packet communication device CN100391183C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2003196301 2003-07-14
JP196301/2003 2003-07-14
JP341316/2003 2003-09-30
JP341315/2003 2003-09-30
JP084302/2004 2004-03-23
JP146345/2004 2004-05-17

Publications (2)

Publication Number Publication Date
CN1771698A CN1771698A (en) 2006-05-10
CN100391183C true CN100391183C (en) 2008-05-28

Family

ID=36751978

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200480009706 CN100391183C (en) 2003-07-14 2004-07-14 Radio packet communication method and radio packet communication device

Country Status (1)

Country Link
CN (1) CN100391183C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008092249A (en) * 2006-10-02 2008-04-17 Sony Corp Wireless communication system and wireless communication device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038385A (en) 1987-10-30 1989-12-27 亚特兰大科研公司 Controlled csma packet switching system
WO1995001020A1 (en) 1993-06-25 1995-01-05 Xircom, Incorporated Virtual carrier detection for wireless local area network with distributed control
CN1157088A (en) 1995-06-16 1997-08-13 诺基亚电信公司 Allocating channels in mobile radio system
JP2001053745A (en) 1999-08-11 2001-02-23 Nippon Telegr & Teleph Corp <Ntt> Radio packet communication system
JP2003124938A (en) 2001-10-19 2003-04-25 Matsushita Electric Ind Co Ltd Communication area reserving method and radio communication apparatus used therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038385A (en) 1987-10-30 1989-12-27 亚特兰大科研公司 Controlled csma packet switching system
WO1995001020A1 (en) 1993-06-25 1995-01-05 Xircom, Incorporated Virtual carrier detection for wireless local area network with distributed control
CN1157088A (en) 1995-06-16 1997-08-13 诺基亚电信公司 Allocating channels in mobile radio system
JP2001053745A (en) 1999-08-11 2001-02-23 Nippon Telegr & Teleph Corp <Ntt> Radio packet communication system
JP2003124938A (en) 2001-10-19 2003-04-25 Matsushita Electric Ind Co Ltd Communication area reserving method and radio communication apparatus used therefor

Also Published As

Publication number Publication date
CN1771698A (en) 2006-05-10

Similar Documents

Publication Publication Date Title
CN101346906B (en) Random access procedure processing method
US9137087B2 (en) High speed media access control
EP2536081B1 (en) High speed media access control and direct link protocol
JP5456091B2 (en) Communication method and a radio terminal station of the wireless terminal station
KR101819622B1 (en) Methods and apparatus for multi-user uplink
JP5175314B2 (en) Architecture for reliability enhancement of the radio base station
JP4710321B2 (en) Wireless communication system, wireless communication apparatus and wireless communication method, and computer program
US7305004B2 (en) Interference suppression methods for 802.11
US9526114B2 (en) Channel access method for very high throughput (VHT) wireless local access network system and station supporting the channel access method
EP2034652B1 (en) Wireless communication system, wireless communication device and wireless communication method, and computer program
US8830986B2 (en) Wireless communication system, wireless communication apparatus and wireless communication method and computer program
EP2255484B1 (en) New data indicator for persistently allocated packets in a communication system
US9178673B1 (en) Dynamic bandwidth allocation
US6480525B1 (en) Second level collision resolution for packet data communications
US8891456B2 (en) Wireless communication system, wireless communication device and wireless communication method, and computer program
CN1137555C (en) Method, device and communication network for avoiding collisions in radio communication
US6404756B1 (en) Methods and apparatus for coordinating channel access to shared parallel data channels
EP1382135B1 (en) Interference suppression method for 802.11
JP4086304B2 (en) Communication device, a communication system, and communication control program
US7046690B2 (en) Interference suppression methods for 802.11
KR101115438B1 (en) A serial clear to sendcts to selfcts2self messaging processure
CN101300755B (en) Random access channel hopping for frequency division multiplexing access systems
KR101282357B1 (en) Frame Transmission in Multi-User based Wireless Communication System
RU2605437C2 (en) System and method for applying extended accessing barring in wireless communication system
US6850504B1 (en) Access to communications systems

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted