CN1914856A - Radio terminal device, management terminal device and radio communication method - Google Patents

Radio terminal device, management terminal device and radio communication method Download PDF

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Publication number
CN1914856A
CN1914856A CNA2005800033729A CN200580003372A CN1914856A CN 1914856 A CN1914856 A CN 1914856A CN A2005800033729 A CNA2005800033729 A CN A2005800033729A CN 200580003372 A CN200580003372 A CN 200580003372A CN 1914856 A CN1914856 A CN 1914856A
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China
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communication
terminal device
information
profile information
communications profile
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漆原伴哉
宫野谦太郎
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

There are provided a management terminal device, a radio terminal device, and a radio communication method capable of reducing the interference in a communication environment where a plurality of radio communication methods are mixed and improving the communication quality. In the management terminal device(200), a radio unit(210) receives communication profile information from the radio terminal device(100) and outputs it to a communication permission generation unit(220). The communication profile information includes information on a radio communication method to be used, a frequency band to be used, a communication start time or a communication continuation time among the radio resources shared by a plurality of radio communication methods in the radio communication system. Moreover, the radio unit(210) transmits communication permitted/not-permitted information to the radio terminal device(100). The communication permission generation unit(220) references communication profile information and a communication permission history stored in a storage unit(230) and generates communication permission/non-permission information for the communication of the communication profile information. The storage unit(230) stores the communication permission/non-permission information as the communication permission history.

Description

Wireless terminal device, management terminal device and wireless communications method
Technical field
The present invention relates to a kind of wireless terminal device, management terminal device and wireless communications methods, in particular to a kind of wireless terminal device, management terminal device and wireless communications method for wireless communication system, under the environment mixed for the communication in multiple radio communication systems, management terminal device manages the wireless communication between wireless terminal device.
Background technique
Traditionally, only be used only single wireless communication scheme execute communication between wireless terminal device environment under, propose channel distribution from management terminal device management to wireless terminal device scheme (for example, with reference to patent document 1).Fig. 1 shows the example of the Managed Solution of the channel distribution by management terminal device.In the wireless communication system shown in the drawings, it provides a kind of for executing the management terminal device 10 of the centralized management of the channel use state of whole system, and before executing the communication with wireless terminal device 20-2, wireless terminal device 20-1 notifies communication request to management terminal device 10.Then, information of the management terminal device 10 to wireless terminal device 20-1 notice available channel, the available channel is different from being already allocated to the channel with the communication of wireless terminal device 20-3 and wireless terminal device 20-4, and wireless terminal device 20-1 executes the communication with wireless terminal device 20-2 using available channel.This prevent the interference to the same channel in wireless communication system.
On the other hand, for example, the Wireless LAN of IEEE802.11a, IEEE802.11b and IEEE802.11g, PHS (personal handyphone system), bluetooth (Bluetooth) etc. have been implemented as the radio communication system in the relatively limited space for family, office etc..With popularizing for these radio communication systems, multiple radio communication systems are blended in the environment that multiple wireless terminal devices within family or office and corresponding to these radio communication systems mix and have increased.
Such as, in the case where the wireless terminal device for executing communication using IEEE802.11b, IEEE802.11g and bluetooth mixes, these radio communication systems use 2.4GHz (gigahertz) frequency band, therefore height a possibility that interfere in being in communication with each other.
Patent document 1: Japanese patent application discloses No.2003-333054.
Disclosure
Problem to be solved by this invention
Even if also using common radio resources, and from the viewpoint of communication quality, reduction is important the interference of other communications in the case where there are multiple wireless terminal devices as described above and execute communication by multiple respective different radio communication systems.
However, under the communication environment of multiple radio communication system mixing as described above, there is no the precedent of the research of the communication between management terminal device management wireless terminal device, and this makes to reduce to interfere under such communication condition to become difficult, and leads to the problem of reducing communication quality.
Namely, such as, in the management terminal device disclosed in above patent document 1, only there are the channel use states under the communication environment of single wireless communication scheme for management, therefore cannot understand the communications status for being communicated by other different radio communication systems.
Therefore, the purpose of the present invention is to provide the wireless terminal device, management terminal device and wireless telecom equipment for interfering and improving communication quality can be reduced under the communication environment that multiple radio communication systems mix.
The means used to solve the problem
Management terminal device according to the present invention uses such configuration, it includes information acquisition section, communications profile (profile) information by using with the communication party of another wireless terminal device is obtained, it includes radio communication system, used frequency bandwidth, the information of communication start time and communication duration；Communications profile information and past communication licensing history are compared by generating unit, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And transfer member, communication permission/denial information generated is transmitted to wireless terminal device.
Wireless terminal device according to the present invention uses such configuration, it includes generating unit, in the case where the communication request with other wireless terminal devices occurs, communications profile information corresponding with communication request is generated, it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；And transfer member, communications profile information generated is transmitted to management terminal device.
Wireless communication system according to the present invention uses such configuration, wherein, wireless communication system has multiple wireless terminal devices and management terminal device, wherein wireless terminal device includes: generating unit, in the case where the communication request with another wireless terminal device occurs, communications profile information corresponding with communication request is generated, it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；Communications profile information generated is transmitted to management terminal device by transfer member, and management terminal device includes: receiving part, receives communications profile information from wireless terminal device；The received communications profile information of institute and past communication licensing history are compared by generating unit, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And transfer member, communication permission/denial information generated is transmitted to wireless terminal device.
Wireless communications method according to the present invention uses such configuration, wherein for the wireless communications method with multiple wireless terminal devices and the wireless communication system of management terminal device the following steps are included: in the case where the communication request with another wireless terminal device occurs, wireless terminal device generates communications profile information corresponding with communication request, and it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；Wireless terminal device transmits communications profile information generated；Management terminal device obtains communications profile information corresponding with communication request, and it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；The received communications profile information of institute and past communication licensing history are compared by management terminal device, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And communication permission/denial information generated is transmitted to wireless terminal device by management terminal device.
Accordingly, management terminal device obtains communications profile information, and will be transmitted to wireless terminal device from the communication permission/denial information for comparing communications profile information and the result of communication licensing history generates in the past.As a result, management terminal device changes communications profile information or refusal communication starts, and it is possible to reduce under the communication environment of multiple radio communication systems mixing and interfere and improve communication quality in the case where the competition to radio resource occurs.
Advantageous effects of the invention
According to the present invention, under the communication environment of multiple wireless communications methods mixing, it is possible to reduce and interfere and improve quality.
Detailed description of the invention
Fig. 1 is the exemplary figure for showing wireless communication system；
Fig. 2 be show according to embodiments of the present invention 1 wireless communication system exemplary figure；
Fig. 3 is the block diagram for showing the configuration of major part of the wireless terminal device according to embodiment 1；
Fig. 4 is the block diagram for showing the configuration of major part of the management terminal device according to embodiment 1；
Fig. 5 A is the precedence diagram for showing the operation of wireless terminal device and management terminal device according to embodiment 1；
Fig. 5 B is the continuation of Fig. 5 A；
Fig. 6 is the flow chart for showing according to embodiment 1, for generating communication permission/denial information operation；
Fig. 7 is the exemplary figure for showing according to embodiment 1, for communicating licensing history and communications profile information communication spectrum；
Fig. 8 is the exemplary figure for showing according to embodiment 1, for communicating licensing history and communications profile information call duration time；
Fig. 9 is to show the exemplary figure for receiving CNR relative to BER characteristic；
Figure 10 be show according to embodiments of the present invention 2 wireless communication system exemplary figure；
Figure 11 is the block diagram for showing the configuration of essential part according to embodiment 2, for link terminal equipment；
Figure 12 A is the precedence diagram for showing the operation of the wireless terminal device according to embodiment 2, link terminal facilities and administration terminal device；
Figure 12 B is the continuation of Figure 12 A；
Figure 13 be show according to embodiments of the present invention 3 wireless communication system exemplary figure；
Figure 14 is the block diagram for showing the configuration of major part of the management terminal device according to embodiment 3；
Figure 15 is the block diagram for showing the configuration of major part of the communication license generating unit according to embodiment 3；
Figure 16 A is the precedence diagram for showing the operation of wireless terminal device and management terminal device according to embodiment 3；
Figure 16 B is the continuation of Figure 16 A；
Figure 17 is the flow chart for showing according to embodiment 3, for generating communication permission/denial information operation；And
Figure 18 is the exemplary figure for showing according to embodiment 3, for communicating licensing history and communications profile information communication spectrum.
Specific embodiment mode
Now, the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
(embodiment 1)
In the embodiment of the present invention 1, it is assumed that multiple wireless terminal devices within relatively limited space in such as family and be mixed between these wireless terminal devices by multiple radio communication systems (such as, it then follows the radio communication system of IEEE802.11a, IEEE802.11b, IEEE802.11g, bluetooth, PHS etc.) communication environment of communication link that generates.Specifically, it is assumed that be wherein mixed with the communication environment of the communication link of radio communication system for example, by IEEE802.11b, IEE802.11g and bluetooth, using same frequency bandwidth.
Fig. 2 is the exemplary figure for showing the wireless communication system according to the present embodiment.It as shown in the drawing, include wireless terminal device 100-1, wireless terminal device 100-2, wireless terminal device 100-3, wireless terminal device 100-4 and management terminal device 200 according to the wireless communication system of the present embodiment.
In the present embodiment, it is assumed that wireless terminal device 100-1 and wireless terminal device 100-2 executes wireless communication by IEEE802.11g communication link 300-1, and wireless terminal device 100-3 and wireless terminal device 100-4 executes wireless communication by bluetooth communications link 300-2.Thus, communication of the wireless terminal device 100-1 according to IEEE802.11a via communication link 300-3 to management terminal device 200 notice and wireless terminal device 100-2, and communication of the wireless terminal device 100-3 according to IEEE802.11a via communication link 300-4 to management terminal device 200 notice and wireless terminal device 100-4.
The radio communication system of each communication link 300-1 to 300-4 is not limited to above-mentioned radio communication system, but the radio communication system of communication link 300-1 and communication link 300-2 can be identical or different, and assume that the radio communication system of communication link 300-3 and communication link 300-4 does not influence the radio communication system of communication link 300-1 and communication link 300-2.It is preferred, therefore, that the radio communication system of communication link 300-3 and 300-4 are different from the radio communication system of communication link 300-1 and communication link 300-2.However, for example, antenna can be provided separately and is arranged according to each communication link, so that each antenna beam is not overlapped, perhaps it can according to need switching antenna or dedicated channel can be used or execute the communication of communication link 300-3 and communication link 300-4 with special regular.It is also expected to the radio communication system of communication link 300-3 and communication link 300-4 are mutually different.
The radio communication system for these communication links can also be predefined for each wireless communication system.Additionally, there are ultra wideband transmissions scheme, for example, IEEE802.11b, PHS, regulation low-power wireless and UWB (ultra wide band) and infrared wireless communication etc., as the scheme that can be adopted as radio communication system.Preferably, it is assumed that such situation, wherein communication link 300-1 takes bluetooth, and communication link 300-2 takes regulation low-power wireless, and communication link 300-3 and 300-4 take IEEE802.11a；Or it is regulation low-power wireless that communication link 300-1, which takes IEEE802.11b, communication link 300-2, and communication link 300-3 and 300-4 take IEEE802.11a；Or communication link 300-1 takes bluetooth, communication link 300-2 takes regulation low-power wireless, and communication link 300-3 and 300-4 take PHS；Or communication link 300-1 takes 802.11b, communication link 300-2 that regulation low-power wireless and communication link 300-3 and 300-4 is taken to take PHS.
Fig. 3 is the block diagram for showing the configuration of the major part of wireless terminal device 100-1 of the present embodiment.Wireless terminal device 100-2 to 100-4 also has configuration shown in Fig. 3.As shown in figure 3, wireless terminal device 100-1 includes control unit 110, communications profile generating unit 120, storage unit 130 and radio parts 140.
Control unit 110 indicates switching radio communication system to radio parts 140, and indicates to generate communications profile information to communications profile generating unit 120.It is described later communications profile information.
Communications profile generating unit 120 generates according to the instruction from control unit 110 and is output to storage unit 130 about the communications profile information communicated with wireless terminal device 100-2, and by the information.
Here, communications profile information is to indicate the information of the relevant profile information of communication to communication link 300-1 and communication link 300-2, for example, radio communication system to be used, used frequency bandwidth, used channel, communication start time, communication duration, modulation scheme, code rate, transimission power, uplink and downlink communication ratio, transfer source MAC (medium access control) address, target MAC (Media Access Control) address, communication priority etc..The IP address or sequence number corresponding with manufacturer's number for distributing to wireless terminal device are also used as including the information in communications profile information, to replace transmission source MAC and target MAC (Media Access Control) address.Moreover, it is not necessary to individually specify wireless terminal device, and identification symbol etc. can be used in the case where only appointed product type is with regard to enough situations.
Communications profile information includes the information of the radio resource needed for each communication link in the radio resource shared within wireless communication system as multiple radio communication systems.Therefore, communications profile information includes at least radio communication system to be used, used frequency bandwidth, the information of communication start time and communication duration.Moreover it is preferred that communications profile information includes at least one of the information for modulation scheme, code rate, transimission power and Spreading Factor.
It is clear by the information that radio communication system specification determines if the information for radio communication system is included in communications profile, therefore need not includes the information determining by the specification in communications profile information.Namely, in this case, it is sufficient that, the information by radio communication system to be used, used frequency bandwidth, communication start time and communication duration includes in communications profile information, to carry out the transmission needed for obtaining at management terminal device 200.As a result, it is possible to reduce the information content for communications profile information.
Furthermore, also it is desirable to include that information in communications profile information is different according to the radio communication system for communication link 300-1 and communication link 300-2.Namely, such as, in the case where IEEE802.11a or IEEE802.11g is used as radio communication system, FFT (Fast Fourier Transform (FFT)) points, subcarrier number, the modulation scheme of each subcarrier, code rate of each subcarrier etc. may include in the communication information, and in the case where bluetooth is used as wireless communication etc., frequency-hopping mode etc. may include in communications profile information.
Furthermore, it is also possible to only generating the trigger signal for providing communication request notice rather than communications profile information, thus the actual bodies for being used for the information of management terminal device 200 are pre-stored in such as storage unit 230, or pass through the actual bodies of the download informations such as internet.It is, communication license generating unit 220 (describing below) is there is a possibility that obtain communications profile information with any method.In this case, it needs to pre-register the communications profile information for being used for communication link 300-1 and communication link 300-2 in storage unit 230 or external, but this makes it possible to further decrease by the information content of communication link 300-3 and communication link 300-4 transmission.
Information and the communications profile information exported by communications profile generating unit 120 needed for the storage of storage unit 130 configures radio parts 140 according to each radio communication system.
Radio parts 140 have with the radio communication system of communication link 300-1 (i.e., IEEE802.11g) and the radio communication system of communication link 300-3 (i.e., IEEE802.11a) compatible antenna, and it is configured using programmable device, wherein the programmable device can be reconfigured such as the rewriting by software.Here, programmable device be such as FPGA (field programmable gate array), DSP (digital signal processor), CPU (central processing unit) and processor being reconfigured in one or two or more combinations.As a result, radio parts 140 can switch between the configuration compatible with radio communication system (that is, the IEEE802.11a) of the radio communication system of communication link 300-1 (that is, IEEE802.11g) and communication link 300-3.
Radio parts 140 transfer data to wireless terminal device 100-2 by communication link 300-1, and communications profile information is transmitted to management terminal device 200 by communication link 300-3.In addition, radio parts 140 receive the communication permission/denial information transmitted from management terminal device 200.It is also possible to configuring radio parts 140 by the multiple radio parts compatible with each radio communication system separately provided, rather than configured using programmable device.
Fig. 4 is the block diagram for showing the configuration of major part of the management terminal device 200 according to the present embodiment.As shown in figure 4, management terminal device 200 has radio parts 210, communication license generating unit 220 and storage unit 230.
Radio parts 210 have with the radio communication system of communication link 300-3 and communication link 300-4 (i.e., IEEE802.11a) compatible antenna, the communications profile information transmitted from wireless terminal device 100-1 and wireless terminal device 100-3 is received, and is output to communication license generating unit 220.In addition, the communication permission/denial information that the transmission of radio parts 210 is generated by the communication license generating unit 220 described below.
Communication license generating unit 220 is with reference to the communications profile information exported by radio parts 210 and the communication licensing history being stored in storage unit 230, generate communication permission/denial information, it indicates whether the communication for permitting to execute on communication link 300-1 and communication link 300-2, and the communication permission/denial information is output to radio parts 210 and storage unit 230.
Here, in the case where communicating the communication that permission/denial information indicates whether that possible addition is indicated by communications profile information, communication permission/denial information is information identical with above-mentioned communications profile information.For example, if communication be it is possible, can be used as ACK addition communication permission/denial information, and if communication be it is impossible, can be used as NACK addition communication permission/denial information.
Communicating permission/denial information can not also include information identical with communications profile information, but only include ACK or NACK as communication permission/denial information.In this case, if being possible by the communication that communications profile information is shown, it then communicates permission/denial information and takes ACK, and if communication is impossible, it then communicates permission/denial information and takes NACK, without making any change to the information for being added to the communication shown by communications profile information.In addition, if by the communication that communications profile information is shown be it is possible, then may also not generate any information.In this case, even if the predetermined time passs, it is also not received by communication permission/denial information, then wireless terminal device 100-1 starts the communication indicated by communications profile information.
The communication permission/denial information that the storage of storage unit 230 is generated by communication license generating unit 220, as communication licensing history.
Next, the operation of the wireless terminal device 100-1 and management terminal device 200 that configure in a manner of above will be described in detail with reference to precedence diagram shown in Fig. 5 A and Fig. 5 B.In the following description, it is assumed that wireless terminal device 100-3 and wireless terminal device 100-4, which has begun, uses Bluetooth communication by communication link 300-2.Therefore, the communication licensing history for being used to communicate corresponding with the communications profile information generated by the communications profile generating unit 120 of wireless terminal device 100-3 is stored in the storage unit 230 of management terminal device 200.As the communication licensing history, it is assumed that for example following information of storage: the radio communication system of bluetooth, the modulation scheme of GFSK, 2/3 code rate, the transimission power of 1mW (milliwatt), institute's frequency of use bandwidth (megahertz) of 79MHz, 2441MHz used channel (centre frequency), one second communication start time and five seconds communication durations.
Furthermore, in the following description, it is assumed that the communications profile information generated by wireless terminal device 100-1 includes radio communication system, modulation scheme, code rate, transimission power, institute's frequency of use bandwidth, used channel (centre frequency), communication start time and communication duration.Two seconds after the request on above-mentioned communication link 300-2 occurs, communication request of the wireless terminal device 100-1 on communication link 300-1 occurs, then, it is assumed that communications profile information relevant to communication link 300-1 is the radio communication system of IEEE802.11g, used channel (centre frequency), two seconds communication start times and the three seconds communication durations of institute's service band width of the modulation scheme of 64QAM, 3/4 code rate, the transimission power of 10mW, 16.6MHz, 2412MHz.
Compared with communication start time and communication duration, it is considered short enough until receiving communication permission/denial information the time it takes from management terminal 200 from transmission request occurs at wireless terminal device 100-1 and wireless terminal device 100-3, communications profile information is transmitted to management terminal 200.
First, when communication request (401) occurring at the control unit 110 in wireless terminal device 100-1, the instruction for being switched to configuration corresponding with the radio communication system of communication link 300-3 (that is, IEEE802.11a) is output to radio parts 140 (402) from control unit 110.Meanwhile communications profile information is generated into instruction and is output to communications profile generating unit 120 (403) from control unit 110.
Then, communications profile information (404) relevant to the communication occurred on communication link 300-1 is generated by communications profile generating unit 120.Specifically, the communications profile information of generation, it includes about such information, i.e. radio communication system is IEEE802.11g, and modulation scheme is 64QAM, code rate is 3/4, transimission power is 10mW, and institute's frequency of use bandwidth is 166MHz, and used channel (centre frequency) is 2412MHz, communication start time is two seconds, and communication duration is three seconds.
When generating the communications profile information, be arranged as specified in the specification to by the relevant content of the determining content of specification.It is, for example, when radio communication system is bluetooth, it is assumed that institute's frequency of use bandwidth is 79MHz and used channel (centre frequency) is 2441MHz.In addition, can determine the predetermined time when communication request occurs every time, or system parameter relevant to frame length data can be used to determine the predetermined time about communication duration.Further, it is also possible to obtain communication duration from the data volume for being intended to transmit and the transmission rate etc. determining by specification.Then, the communications profile information generated in this way is output to storage unit 130 (405), and (406) is stored by storage unit 130.
On the other hand, radio parts 140 are according to the instruction from control unit 110, the configuration information for being used for the radio communication system (IEEE802.11a) of communication link 300-3 and communications profile information (407) relevant to communication link 300-1 are read from storage unit 130, and is switched to configuration (408) corresponding with IEEE802.11a.Hereafter, the specification for following IEEE802.11a and the transmission data (for example, communications profile information is stored in the frame body field of data frame) comprising communications profile information are generated by radio parts 140.Then, according to the communication specification and process of IEEE802.11a, transmission data are subjected to the predetermined transmission processing of radio parts 140, such as, (409) such as convolutional encoding, OFDM modulation, orthogonal transformation, frequency transformation, filtering processing, amplifications, and it is transmitted to management terminal device 200 (410) from antenna.
Then, transmission data are received by the radio parts 210 of management terminal device 200.Then, the predetermined IEEE802.11a reception processing (411) that signal is subjected to radio parts 210 is received, and obtains communications profile information.Specifically, the reception signal from wireless terminal device 100-1 is subjected to predetermined reception processing, for example, amplification, filtering processing, frequency transformation, quadrature detection, OFDM demodulation, Veterbi decoding etc. according to the specification of IEEE802.11a.Then, by the data of the body field part of the reception signal extraction frame after handling from reception, communications profile information can be obtained.Then, communications profile information is output to communication license generating unit 220 (412).
Then, by communication license generating unit 220 with reference to the communication licensing history (communication licensing history relevant to the communication for the communication link 300-2 having begun) (413) being stored on storage unit 230, then it is compared by the way that licensing history will be communicated with communications profile information, determines that the communication occurred on communication link 300-1 whether may.Namely, it is determined as communication licensing history and the communication that stores (in this case, the communication of communication link 300-2) used in radio resource and radio resource used in the communication (in this case, the communication of communication link 300-1) that is indicated in communications profile information with the presence or absence of repeating.
If the result of the determination determined the communication of the communication link 300-1 indicated by communications profile information be it is possible, generate the communication License Info that ACK is added to communications profile information, as communication permission/denial information (414).
It is on the contrary, if it is determined that the communication of the communication link 300-1 indicated by communications profile information is impossible, information relevant with the radio resource that communicating of storing as the communication licensing history for including each information in communications profile information is overlapped then is updated, and generation is added to the communication License Info (414) of ACK.For example, if information relevant to communication priority includes that can interrupt the communication for the communication link 300-2 having begun according to importance in communication licensing history and communications profile information.
In addition, if it is also impossible for communicating even if change includes the information in communications profile information, then communication refusal information (414) for being added to NACK to communications profile information as communication License Info is generated.If there is no the communications having begun within wireless communication system, then without storage communication licensing history in storage unit 230, but, at this moment, determine by the communication that communications profile information indicates it is possible, communication License Info is generated, and communications profile information is stored in storage unit 230, as communication licensing history.It is described later and communication permission/denial information is generated by communication license generating unit 220.
When generating communication permission/denial information, communication permission/denial information is output to radio parts 210 (415), and at the same time communication permission/denial information is also output to storage unit 230 (416), and stored as communication licensing history.At this time, by the history for storing corresponding communications profile information together with communication licensing history, management terminal device 200 is possible to understand the frequency of the communication request from each wireless terminal device and information relevant to Content of Communication, and it is therefore possible to execute effective processing based on the communications profile information history.It is, for example, such control is possible, wherein fixed wireless resource is pre-assigned to the high communication of communication request frequency.In addition, it is such control be also it is possible, wherein radio resource is pre-assigned to the communication of communication request periodically occurs according to the period.
Then, the transmission data of specification comprising communication permission/denial information, following IEEE802.11a are generated by radio parts 210, according to the communication specification and process of IEEE802.11a, transmission data are subjected to the predetermined process (417) of convolutional encoding, OFDM modulation, orthogonal modulation frequency modulation(PFM) etc., and transmission data are transmitted to wireless terminal device 100-1 (419) from antenna.
Then, transmission data are received by the radio parts 140 of wireless terminal device 100-1.Then, the predetermined IEEE802.11a reception processing (420) that signal is subjected to radio parts 140 is received, and obtains communication permission/denial information.If including the communication permission/denial information communicated in permission/denial information is ACK, the received notice for indicating communication License Info is then output to control unit 110, and if communication permission/denial information is NACK, it will indicate that the received notice for communicating refusal information is output to control unit 110 (421).If communicating permission/denial information is NACK, that is, if receiving communication refusal information, in predetermined time passage and then the secondary above-mentioned communications profile information generation of execution/transmission processing.It is assumed here that communication permission/denial information is ACK, that is, receive communication License Info, continue to explain.
When the notice for indicating communication License Info is output to control unit 110, the instruction for being switched to configuration corresponding with the radio communication system of communication link 300-1 (that is, IEEE802.11g) is output to radio parts 140 (422) from control unit 110.Then, radio parts 140 are according to the instruction, the configuration information (423) of the radio communication system (IEEE802.11g) for communication link 300-1 is read from storage unit 130, and is switched to configuration (424) corresponding with IEEE802.11g.
Hereafter, by radio parts 140 based on modulation scheme, code rate, transimission power and the communication duration shown by communication License Info, start to communicate (425) using IEEE802.11g.The radio resource Chong Die with the communication of communication link 300-2 for using bluetooth is not used using the communication of the communication link 300-1 of IEEE802.11g, interferes therefore, it is possible to be reduced under the communication environment of multiple radio communication systems mixing and improves communication quality.
Next, will illustrate to generate communication permission/denial information by the communication license generating unit 220 of management terminal device 200 with reference to flow chart shown in fig. 6.
First, at communication license generating unit 220, with reference to communications profile information received at radio parts 210 (the communications profile information of communication link 300-1) and the communication licensing history (the communication licensing history of communication link 300-2) (S1000) being stored in storage unit 230.Then, it is determined that for communicate licensing history communication frequency spectrum be used for communications profile information communication frequency spectrum on the frequency axis whether be overlapped (S1100).
If it is determined that the result is that not being overlapped on the frequency axis, it is determined that by the communication that communications profile information indicates be possible, and as it appears from the above, generate the communication License Info (S1800) for being added to ACK in communications profile information.On the other hand, such as, as shown in Figure 7, if the communication spectrum 500 of communication licensing history relevant to communication link 300-2 and the communication spectrum 510 of communications profile information relevant with communication link 300-1 are Chong Die, it has then determined and has overlapped on the frequency axis, it is then determined whether being possible to change the used channel (S1200) of communications profile information.
It then the use of channel change is possible channel at communication by the institute of communications profile information, and generate the communication License Info (S1800) that ACK is added in communications profile information after the change if it is determined that being as a result possible to change used channel.On the other hand, such as, if communication of the bluetooth for communication licensing history relevant to communication link 300-2, and IEEE802.11g is used for the communication of communications profile information relevant to communication link 300-1, then institute's frequency of use bandwidth of the available bandwidth of IEE802.11g and bluetooth is completely overlapped, even if being communicated and impossible it is thus determined that changing use the channel of communications profile information.In this case, determined by communication license generating unit 220 call duration time and the call duration time of the communication of communications profile information of the communication of communication licensing history on a timeline whether be overlapped (S1300).
If it is determined that the result is that not being overlapped on a timeline, it is determined that by the communication that communications profile information indicates be possible, and generate the communication License Info (S1800) for being added to ACK in communications profile information.On the other hand, for example, as shown in figure 8, if with respect in time T1The communication request 520 of generation, the communication of communication link 300-2 is from time T2Continue to time T5, according in time T3The communication request 530 of generation, the communication of communication link 300-1 are scheduled as from time T4Continue to time T6, it is determined that it overlaps the time 540, and determines whether it is likely that the communication start time (S1400) for changing communications profile information.Determine whether frequency is overlapped (S1100), it determines whether it is likely that with another frequency for communication (S1200), determine whether call duration time is overlapped (S1300), and determine whether it is likely that the order for changing communication start time (S1400) is not limited to this, and it can change the order of the processing, determine whether frequency is overlapped (S1100) before determining whether it is likely that with another frequency for communication (S1200) as long as meeting, and determine whether call duration time is overlapped (S1300) and is determining whether it is likely that the condition before changing communication start time (S1400).
If it is determined that result is to be possible to change communication start time, then the communication start time of communications profile information is changed to communication is the possible time, and generates the communication License Info (S1800) that the communications profile information after change is added to ACK.On the other hand, if it is determined that communication start time can not be changed, it is determined whether it is possible that changing modulation scheme and code rate (S1500) in communications profile information by communication license generating unit 220.
If it is determined that being as a result possible to change both modulation scheme and code rate, then change the modulation scheme and code rate (S1600) of communications profile information, calculate with the modulation scheme and the corresponding communication duration of code rate and transimission power (S1700) after change, and the communication duration of communications profile information and transimission power are changed to the communication duration and transimission power of calculating.Then, the communication License Info (S1800) that the communications profile information after change is added to ACK is generated.Furthermore, if it is determined that the result is that being only only the possibility to change one in modulation scheme and code rate, then change changeable whichever information (S1600) in communications profile information, calculate with the modulation scheme or the corresponding communication duration of code rate and transimission power (S1700) after change, and the communication duration of communications profile information and transimission power are changed to communication duration calculated and transimission power.Then, the communication License Info (S1800) that the communications profile information after change is added to ACK is generated.
Here, by explanation, in the case where changing modulation scheme and code rate, the calculating of communication duration and transimission power are calculated.
As an example, it is assumed that for example, modulation scheme can change from 64QAM to BPSK, and code rate can change from 3/4 to 1/2.Fig. 9 is before and after showing in the case where radio communication system is IEEE802.11g, changing modulation scheme and code rate, receives figure of the CNR relative to BER characteristic.Namely, characteristic curve 550 show change after (modulation scheme: BPSK, code rate: characteristic curve 1/2), and characteristic curve 560 show change before (modulation scheme: 64QAM, code rate 3/4) characteristic curve.
As shown in the drawing, in IEEE802.11g, by changing modulation scheme from 64QAM to BPSK, and code rate is changed from 3/4 to 1/2, with 10-3BER the case where as reference, the gain of approximate 17dB can be obtained.By making the transimission power of communication link 300-1 be less than 10dB in 1mW ratio 10mW, it is possible to inhibit the interference effect in the communication for the communication link 300-2 that overlapping time executes, while keep the BER characteristic of communication link 300-1.Further, since obtaining the gain of 7 (=17-10) dB, it is therefore possible to inhibit the interference effect of the communication from communication link 300-2, and executes communication while inhibiting the influence interfered with each other.
At this point, changing the duration possibly through modulation scheme and code rate is changed.It is, transmission rate becomes 1/6 times, and code rate changes from 3/4 to 1/2, so that transmission rate becomes 2/3 times by changing modulation scheme from 64QAM to BPSK.It means that needing nine (=6 × (3/2)) times times of communication duration shown in communications profile information.In this way, communication duration and transimission power needed for calculating in the case where changing code rate and modulation scheme, and change each item of information of communications profile information.
Referring again to Fig. 6, if the determination of S1500 is the result is that can not change any one of modulation scheme and code rate, it has then been determined that the communication of the communication link 300-1 shown in communications profile information is impossible, and has generated communication refusal information (S1900) for being added to NACK to communications profile information.
The communication permission/denial information generated in this way is transmitted to wireless terminal device 100-1, and in a manner of not interfering the communication of communication link 300-2, starts the communication of communication link 300-1.
In this way, according to the present embodiment, based on communications profile information relevant to the communication link of communication request is generated, determine the competition whether management terminal device occurred on another communication link to radio resource, and in case of the competition to radio resource, then pass through to change communications profile information or refuse communication and start, it is therefore possible to reduce interference under the communication environment that multiple radio communication systems mix and improve communication quality.
In the present embodiment, only before starting the communication with each wireless terminal device, communications profile information is notified to management terminal device 200, but it is also possible that notifying information relevant to result of communication to management terminal device 200 after completing the communication with each wireless terminal device.Information relevant to result of communication can be received signal strength indicator symbol (RSSI), signal-to-noise ratio (SNR), carrier-to-noise ratio (CNR), bit error rate, frame error rate, reception frequency characteristic signal etc..In this way, management terminal device 200 it will be appreciated that each wireless communication link result of communication and propagation path characteristic, and it is possible to execute more appropriate control.
In addition, the communication of communication link 300-3 and 300-4 are not limited to wirelessly communicate, also, for example, the wire communication of electric light wave communication, Ethernet (registered trademark) etc. can be used for the communication.As a result, it is possible to reduce the influence of the communication of the communication of communication link 300-3 and 300-4 to communication link 300-1 and 300-2.
Furthermore, it is also possible to output block be provided, communications profile information, communication licensing history etc. are output to other processing components or equipment, and provide input part, from the external input signal of management terminal device 200.As a result, it is possible that communications profile information, communication licensing history etc. to be output to the external equipment of personal computer, television set, printer etc. from output block, to inform the user communications status information, and user is allowed to distribute and select communication permission/denial information by input part.
In addition, in the present embodiment, using such configuration, communication permission/denial information is wherein only only transmitted to only to the wireless terminal device 100-1 of notice communications profile information from management terminal device 200, but it is also possible to using such configuration, wherein communication permission/denial information is transmitted to all wireless terminal device 100-1 to 100-4.As a result, being likely to understand the state of communication link 300-1 not only at management terminal device 200 but also at each wireless terminal device 100-1 to 100-4.
(embodiment 2)
The embodiment of the present invention 2 is characterized in wireless terminal device and management terminal device by link terminal equipment to communicate.
Figure 10 is the exemplary figure for showing the wireless communication system according to the present embodiment.In the figure, identical label is assigned in part identical with Fig. 2.As shown in Figure 10, according to the wireless communication system of the present embodiment tool, there are two wireless terminal device 100-1, two wireless terminal device 100-2, two wireless terminal device 100-3, two wireless terminal device 100-4, link terminal equipment 600-1, link terminal equipment 600-2 and management terminal devices 200.Link terminal equipment shown in Fig. 10 and the number of wireless terminal device are respectively arbitrary, and, for example, passing through, link terminal equipment 600-1 execution is executed from the number of the wireless terminal device of the communication of management terminal device 200 and by link terminal equipment 600-2 and the number of the wireless terminal device of the communication of management terminal device 200 can be different.
In the present embodiment, it is assumed that wireless terminal device 100-1 and wireless terminal device 100-2 executes wireless communication by bluetooth communications link 300-1, and wireless terminal device 100-3 and wireless terminal device 100-4 executes wireless communication by bluetooth communications link 300-2.Then, wireless terminal device 100-1 and link terminal equipment 600-1 executes wireless communication by using the communication link 700-1 of PHS, and link terminal equipment 600-2 executes wireless communication by using the communication link 700-2 of regulation low-power wireless.In addition, link terminal equipment 600-1 notifies wireless terminal device 100-1 and wireless terminal device 100-2 executing communication by using the communication link 700-3 of IEEE802.11a to management terminal device 200.Similarly, link terminal equipment 600-2 notifies wireless terminal device 100-3 and wireless terminal device 100-4 executing communication by using the communication link 700-4 of IEEE802.11a to management terminal device 200.
In the present embodiment, the configuration of wireless terminal device 100-1 to 100-4 and management terminal device 200 is same as Example 1, and and the description is omitted.
Figure 11 is the block diagram for showing the configuration of major part of the link terminal equipment 600-1 according to the present embodiment.Link terminal equipment 600-2 also includes configuration shown in Figure 11.As shown in figure 11, link terminal equipment 600-1 includes radio parts 610, control unit 620 and storage unit 630.
Radio parts 610 have with the radio communication system of communication link 700-1 (i.e., PHS) and the radio communication system of communication link 700-3 (i.e., IEEE802.11a) compatible antenna, and it is configured using programmable device, wherein programmable device can be reconfigured by rewriting of software etc..When receiving through communication link 700-1 from the communications profile information that wireless terminal device 100-1 is transmitted, which is transmitted to management terminal device 200 by communication link 700-3 by radio parts 610.When receiving the communication permission/denial information transmitted by communication link 700-3 from management terminal device 200, radio parts 610 are transmitted to wireless terminal device 100-1 for permission/denial information is communicated by communication link 700-1.
Then, radio communication system is switched to radio parts 610 by the instruction of control unit 620.Specifically, control unit 620 indicates that radio communication system is PHS if executing communication by communication link 700-1, and if executing communication by communication link 700-3, control unit 620 indicates that radio communication system is IEEE802.11a.
Information needed for the storage of storage unit 630 configures radio parts 610 according to radio communication system.
Next, the operation of the wireless terminal device 100-1, link terminal equipment 600-1 and management terminal device 200 that configure in a manner of above will be described in detail with reference to precedence diagram shown in Figure 12 A and Figure 12 B.In figs. 12 a and 12b, part corresponding with Fig. 5 A and Fig. 5 B is assigned identical label, and detailed description will be omitted.
First, as in embodiment 1, when generating communication request (401) at wireless terminal device 100-1, generate communications profile information (404) relevant to the communication occurred on communication link 300-1, and radio parts 140 are switched to configuration (408) corresponding with being used to transmit radio communication system (that is, the PHS) of communications profile information.Then, according to the communication specification and process of PHS, transmission data comprising communications profile information are subjected to the predetermined transmission processing of radio parts 140, such as, (409) such as TDMA processing, modulation, orthogonal modulation, frequency transformation, filtering processing, amplifications, and it is transmitted to link terminal equipment 600-1 (801) from antenna.
Then, transmission data are received by the radio parts 610 of link terminal equipment 600-1.Then, according to the communication specification and process of PHS, the reception signal is subjected to the predetermined reception processing of radio parts 610, such as, (802) such as amplification, filtering processing, frequency transformation, demodulation, TDMA demodulation, and the reception (803) to the notice communications profile information of control unit 620.When such notice, the instruction for being switched to configuration corresponding with the radio communication system of communication link 700-3 (that is, IEEE802.11a) is output to radio parts 610 (804) from control unit 620.
Then, radio parts 610 are according to the instruction from control unit 620, the configuration information of the radio communication system (IEEE802.11a) for communication link 700-3 is read from storage unit 630, and is switched to configuration (806) corresponding with IEEE802.11a.Hereafter, it includes by PHS via transmission data in the received communications profile information of communication link 700-1, following IEEE802.11a specification that radio parts 610, which generate, transmission processing (807) is realized according to the communication specification of IEEE802.11a and process, and it is transmitted to management terminal device 200 (808) from antenna.
Then, the transmission data are received by management terminal device 200, and it is subjected to the predetermined reception processing (411) of IEEE802.11a, then, as in embodiment 1, generated communication permission/denial information (414), then, it include that the transmission data communicated in permission/denial information are subjected to transmission processing (417), and it is transmitted to link terminal equipment 600-1 (809) from antenna according to the communication specification and process of IEEE802.11a.
In the present embodiment, wireless terminal device 100-1,100-3 and management terminal device 200 exchange communications profile information by link terminal equipment 600-1,600-2 and communicate permission/denial information, and if predefining a radio communication system used in the communication link 300-3 and 300-4 between management terminal device 200 and link terminal equipment 600-1,600-2 (in the present embodiment, IEEE802.11a), then therefore management terminal device 200 need not switch radio communication system.
Then, transmission data are received by the radio parts 610 of link terminal equipment 600-1, are subjected to the predetermined reception processing (810) of IEEE802.11a, and the reception (811) of communication permission/denial information is notified to control unit 620.When such notice, the instruction for being switched to configuration corresponding with the radio communication system of communication link 700-1 (that is, PHS) is output to radio parts 610 (812) from control unit 620.
Then, radio parts 610 read the configuration information of the radio communication system (PHS) for communication link 700-1 from storage unit 630 according to the instruction from control unit 620, and are switched to configuration (814) corresponding with PHS.Hereafter, on the link generate be included in by radio parts 610 by using IEEE802.11a communication link 700-3 it is received communication permission/denial information in, follow PHS specification transmission data, it realizes that transmission handles (815) according to PHS communication specification and process, and transmission data is transmitted to wireless terminal device 100-1 (816) from antenna.
Then, transmission data are received by wireless terminal device 100-1, and it is subjected to predetermined PHS reception processing (420), and if receiving communication License Info, then the configuration of wireless terminal device 100-1 is switched to the bluetooth compatible with communication link 300-1 (424), and starts the communication with wireless terminal device 100-2.If receiving communication refusal information, the generation of communications profile information and transmission processing are executed again.
As shown above, according to the present embodiment, wireless terminal device and management terminal device pass through link terminal equipment, exchange communications profile information and communication permission/denial information, then, it determines a radio communication system for the communication link between management terminal device and link terminal equipment, and radio communication system need not be switched at management terminal device.As a result, it is possible to mitigate the processing load of management terminal device, and shorten the processing required time.
In the present embodiment, such as, if by link terminal equipment 600-1 from a reception communications profile information in wireless terminal device 100-1, rather than the communications profile information is transmitted to management terminal device 200 in real time, the communications profile information then can be provisionally stored, it is then transmitted to management terminal device 200 with together with the received communications profile information of another wireless terminal device 100-1.As a result, if execute to communicate in real time, it is likely that mitigate the reception signal communication amount at management terminal device 200, and more efficiently carry out the transmission of communications profile information.
Furthermore, in the present embodiment, communications profile information is transmitted to the wireless terminal device 100-1 of link terminal equipment 600-1 each by using the communication link 700-1 of PHS to execute communication, but it is also contemplated that, communications profile information is transmitted to link terminal equipment 600-1 by using another communication link of regulation low-power wireless by another wireless terminal device.
In this case, the radio parts 610 of link terminal equipment 600-1 can switch radio communication system according to each predetermined time.Namely, such as, in specific duration, radio parts 610 are configured to compatible with PHS, etc. the communications profile information to be received transmitted from wireless terminal device 100-1, and hereafter, radio parts 610 are switched to the configuration compatible with regulation low-power wireless, and the communications profile information to be received transmitted from another wireless terminal device can be waited.These duration are not necessarily all as identical length, and call duration time, transmission rate, the frame length etc. occurred in each radio communication system can be considered, the determining duration being compatible with corresponding radio communication system.Further, it is also possible to switch radio communication system according to each part (section) as unit of by time slot.As a result, each link terminal equipment will not be deviateed for its number for executing the wireless terminal device of relaying due to the radio communication system with link terminal hardware compatibility, and it is possible to more efficiently execute the transmission of communications profile information.
(embodiment 3)
The embodiment of the present invention 3 is characterized at management terminal device managing the communication with wireless terminal device using expected throughput value.
Figure 13 is the exemplary figure for showing the wireless communication system according to the present embodiment.In the figure, identical label is assigned in part identical with Fig. 2.It as shown in figure 13, include wireless terminal device 100-1, wireless terminal device 100-2, wireless terminal device 100-3, wireless terminal device 100-4 and management terminal device 1200 according to the wireless communication system of the present embodiment.
In the present embodiment, the expectation handling capacity Information And Communication profile information for being used for each communication link is transmitted to management terminal device 1200 from wireless terminal device together, and at management terminal device 1200, if not avoiding the frequency bandwidth of each communication link at management terminal device 1200 and the overlapping of call duration time, then calculate the desired value of the handling capacity of each communication link, and apply control, so that meeting the expectation handling capacity of each communication link.In the present embodiment, the difference from embodiment 1 is that the configuration of the communication license generating unit at management terminal device 1200 and the operation of management terminal device 1200 (especially communication license generating unit) and wireless terminal device, and other parts are identical as in embodiment 1, and and the description is omitted.
Figure 14 is the block diagram for showing the configuration of major part of the management terminal device 1200 in the present embodiment.As shown in figure 14, management terminal device 1200 includes radio parts 210, communication license generating unit 1220 and storage unit 230.
Radio parts 210 include with the radio communication system of communication link 300-3 and communication link 300-4 (i.e., IEEE802.11a) compatible antenna, the communications profile information and expectation handling capacity information transmitted from wireless terminal device 100-1 and wireless terminal device 100-3 is received, and is output to communication license generating unit 1220.In addition, the communication permission/denial information that the transmission of radio parts 210 is generated by communication license generating unit 1220.
Here, " expectation handling capacity information " indicates expectation handling capacity necessary to the minimum of respective communication chain road.
Communication license generating unit 1220 is with reference to communications profile information, expectation handling capacity information and the communication licensing history being stored in storage unit 230 exported from radio parts 210, communication License Info or communication refusal information are generated, and is output to radio parts 210 and storage unit 230.In addition, expectation handling capacity information is output to storage unit 230 by communication license generating unit 1220.If communications profile information and expectation handling capacity information are stored in advance in storage unit 230 by management terminal device 1200, communications profile information and expectation handling capacity information can be obtained from storage unit 230 by communicating license generating unit 1220.In brief, communication license generating unit 1220 can obtain communications profile information and expectation handling capacity information by any method.
Difference with first embodiment is, if it is determined that not avoiding the overlapping of the frequency band and call duration time of each communication link, it then communicates license generating unit 1220 and calculates the expection throughput value of each communication link, and determine whether the expection throughput value of each communication link meets the expectation handling capacity of each communication link.
If the determination the result is that expected throughput value is unsatisfactory for expectation handling capacity, then communicate the parameter that license generating unit 1220 changes communications profile information, and when computing repeatedly the processing of expected throughput value, and calculating new expection throughput value every time, it is determined whether meet expectation handling capacity.
If the determination the result is that expected throughput value meets expectation handling capacity, communicate license generating unit 1220 based on communications profile information at this time and generate communication License Info, and be output to radio parts 210 and storage unit 230.
Furthermore, if it is determined that can change without communications profile information parameter, or if having had attempted to combination all parameters changeable for all communications profile information, it is contemplated that throughput value is unsatisfactory for required handling capacity, it then communicates license generating unit 1220 and generates communication refusal information, and the information is output to radio parts 210.
Here, " it is expected that throughput value " is the desired value of the handling capacity on each communication link, and can be obtained from the frequency bandwidth of each link, communication start time, communication duration, transimission power, modulation scheme, Spreading Factor, radio communication system, code rate etc..
The communication permission/denial information that the storage of storage unit 230 is generated by communication license generating unit 1220, as communication licensing history.In addition, storage unit 230 is stored in the expectation handling capacity information occurred on each communication link.In addition, storage unit 230 is stored in advance the throughput parameter coefficient of each radio communication system, interference parameter coefficient and with reference to handling capacity.It is described later throughput parameter coefficient, interference parameter coefficient and the details with reference to handling capacity.
Figure 15 is the block diagram for showing the configuration of the major part of communication license generating unit 1220 of the present embodiment.As shown in figure 15, communication license generating unit 1220, which has, determines component 1221, expected throughput value calculating unit 122 and generating unit 1223.
It determines the reference of the component 1221 communications profile information exported from radio parts 210 and the communication licensing history being stored in storage unit 230, and determines whether the frequency bandwidth of the communication occurred on communication link 300-1 and communication link 300-2 and call duration time are overlapped.
If it is determined that the frequency bandwidth and call duration time of the communication occurred on the road Liang Gelian are not overlapped, it is determined that communications profile information is output to generating unit 1223 by component 1221.
On the other hand, if it is determined that the communication frequency bandwidth and call duration time of the communication occurred on the road Liang Gelian are overlapped, it then determines that component 1221 determines whether to change frequency bandwidth and/or call duration time, and determines whether due to such change and avoid the overlapping of frequency bandwidth and call duration time.
If it is determined that can be to avoid overlapping, it is determined that component 1221 changes in such a way that the frequency bandwidth of communications profile information and/or call duration time are nonoverlapping, and communications profile information is output to generating unit 1223.
On the other hand, if it is determined that frequency bandwidth and call duration time cannot all change, or it if it is determined that can not avoid being overlapped, it is determined that communications profile information is output to expected throughput value calculating unit 1222 by component 1221 even if frequency bandwidth and call duration time change.
Then, component 1221 is determined with reference to based on the communications profile information, expectation handling capacity information and including the expectation handling capacity information of each communication link in the communication licensing history being stored in storage unit 230 and the expection throughput value that calculates at expected throughput value calculating unit 1222, and whether the expection throughput value that determination occurs on each communication link meets expectation handling capacity.
If it is determined that the expection throughput value occurred on each link meets expectation handling capacity, it is determined that communications profile information is output to generating unit 1223 by component 1221.
On the other hand, if it is determined that the expection throughput value occurred on each communication link is unsatisfactory for expectation handling capacity, it then determines that the change of component 1221 includes the parameter in communications profile information, and the communications profile information after change parameter is output to expected throughput value calculating unit 1222.
Then, it is determined that component 1221 based on the communications profile information after changing parameter, determines whether the expection throughput value calculated at expected throughput value calculating unit 1222 meets the expectation handling capacity occurred on each communication link.
It repeats " parameter should be changed and determine whether the expection throughput value of calculating meets the processing of expectation handling capacity based on the communications profile information after change parameter ", until expected throughput value meets desired throughput values, or until all parameter combinations are attempted.When expected throughput value meets expectation handling capacity, the communications profile information for changing parameter is output to generating unit 1223 from determining component 1221.In addition, if even if when having attempted all parameter combinations, it is contemplated that throughput value is also unsatisfactory for required handling capacity, then generation signal is refused in communication and be output to generating unit 1223 from determining component 1221.In addition, when meeting expectation handling capacity etc. by expected throughput value unlicensed communications being determined, it would be desirable to which throughput information is output to storage unit 230.
Then, it is expected that throughput value calculating unit 122 calculates expected throughput value in each of such communication link, wherein the communication link be have begun communication expection throughput value calculate target (in the present embodiment, communication link 300-2) and it is possible that the expection throughput value communicated from now on calculates target (in the present embodiment, communication link 300-1).Then, the expection throughput value of calculating is output to determining component 1221.
Specifically, it is contemplated that communication licensing history that throughput value calculating unit 1222 is referenced for the communication link as the expection throughput value computing object for having begun communication, being stored in storage unit 230, and calculate expected throughput value.Additionally, it is contemplated that throughput value calculating unit 1222 calculates the expection throughput value for calculating the communication link of target as the expection throughput value for having begun communication based on from the communications profile information for determining component 1221.
Generating unit 1223 generates communication License Info or communication refusal information, and output them into radio parts 210 and storage unit 230 based on from the communications profile information or communication refusal generation signal for determining that component 1221 exports.
Next, will illustrate the operation of the wireless terminal device 100-1 configured in a manner of above and management terminal device 1200 with reference to precedence diagram shown in Figure 16 A and Figure 16 B.In Figure 16 A and Figure 16 B, part corresponding with Fig. 5 A and Fig. 5 B is assigned identical label, and detailed description will be omitted.In the following illustration, it is assumed that wireless terminal device 100-3 and wireless terminal device 100-4, which has begun, passes through Bluetooth communication via communication link 300-2.Therefore, the communication licensing history for being used to communicate corresponding with the communications profile information generated by the communications profile generating unit 120 of wireless terminal device 100-3 is stored in the storage unit 230 of management terminal device 1200.In the present embodiment, for example, other than storing content in embodiment 1, it is assumed that should " communication licensing history " also storage about occupied bandwidth be 1MHz information and frequency-hopping mode information.It in addition, also storing the expectation handling capacity information of communication link 300-2, and is 0.95Mbps in the example of the present embodiment.
Here, " frequency-hopping mode information " is the information for indicating periodically to use which frequency with which in the communication by bluetooth, and can be made of bluetooth clock and Bluetooth address.In addition, " occupied bandwidth " indicates the frequency bandwidth occupied by special time period, and for bluetooth, according to specification, this is confirmed as 1MHz.
Furthermore, in the following illustration, it is assumed that the communications profile information generated by wireless terminal device 100-1 includes radio communication system, modulation scheme, code rate, transimission power, institute's frequency of use bandwidth, occupied bandwidth, used channel (centre frequency), communication start time and communication duration.Then, in the communication using bluetooth, it is assumed that frequency-hopping mode information is included in communications profile information.It is also assumed that two seconds after the request on above-mentioned communication link 300-2 occurs, generate the communication request that wireless terminal device 100-1 uses communication link 300-1, and the content of communications profile information relevant to communication link 300-1 is, it be 64QAM, code rate be 3/4, transimission power be 10mW, institute's frequency of use bandwidth and occupied bandwidth be 16.6MHz, used channel (centre frequency) is that 2412MHz, communication start time are two seconds and communication duration is three seconds that radio communication system, which is IEEE802.11g, modulation scheme,.
First, as in embodiment 1, when generating communication request (401) at wireless terminal device 100-1, generate communications profile information (404) relevant to the communication occurred on communication link 300-1, and radio parts 140 are switched to configuration corresponding with being used to transmit radio communication system (that is, the IEEE802.11a) of communications profile information.At this point, the expectation handling capacity information occurred on communication link 300-1 is also generated together with communications profile information at communications profile generating unit 120.
It is possible that generating the expectation handling capacity information from the data volume and communication duration to be transmitted.In addition, this can also be obtained by about by executing any operation (for example, multiplication of coefficient) ands standardizing determining transmission rate etc..Here, as an example, expectation handling capacity is 50Mbps.
As communications profile information, the expectation handling capacity information generated in this way is output to storage unit 130 (405), and (406) are stored by storage unit 130.
Then, according to the communication specification and process of IEEE802.11a, transmission data comprising communications profile information and expectation handling capacity information are subjected to the predetermined transmission processing of radio parts 140, such as, (409) such as convolutional encoding, OFDM modulation, orthogonal modulation, frequency transformation, filtration treatment, amplifications, and it is transmitted to management terminal device 1200 (410) from antenna.
Then, transmission data are received by the radio parts 210 of management terminal device 1200.Then, which is subjected to the predetermined IEEE802.11a reception processing (411) of radio parts 210, and obtains communications profile information and expectation handling capacity information.Then, the communications profile information and expectation handling capacity information are output to communication license generating unit 1220.
Communication license generating unit 1220 determines whether that license/refusal passes through the communication for being possible to start the communication link (communication link 300-1) of communication, and communication License Info and communication refusal information (1501) are generated according to definitive result.
Here, communication permission/denial information will be generated by communication license generating unit 1220 with reference to Figure 17 explanation.
First, with reference to the communication licensing history (communication licensing history relevant to the communication for the communication link 300-2 having begun) (S1000) being stored on storage unit 230 at the determination component 1221 in communication license generating unit 1220, and it is compared by the way that licensing history will be communicated with communications profile information, determines whether the communication occurred on communication link 300-1 may be without overlapping (S1100).Namely, it is determined as communication licensing history and the communication that stores (here, the communication of communication link 300-2) used in frequency with frequency used in the communication (here, the communication of communication link 300-1) that is indicated in communications profile information with the presence or absence of overlapping.
If the determination the result is that being possible without overlapping (S 1100: no) by the communication of the communication link 300-1 shown in communications profile information, it then determines that communications profile information is output to generating unit 1223 by component 1221, and generates the communication License Info (S1800) for being added to ACK as communication permission/denial information at generating unit 1223.At this point, determining that expectation handling capacity information is output to storage unit 230 by component 1221, and the expectation handling capacity is stored in storage unit 230.
If instead it is determined that the frequency of the communication link 300-1 indicated by communications profile information is Chong Die with the frequency of another communication link (S110: yes), it is determined whether it is possible that changing the used channel (S1200) in communications profile information.
If it is determined that being as a result possible to change (S1200: yes), then the used channel change of communications profile information is available channel by determining component 1221, it is output to generating unit 1223, and generates the communication License Info (S1800) for being added to ACK as communication permission/denial information at generating unit 1223.
If the determination the result is that even if changing used channel, be also impossible to avoid the overlapping (S1200: no) of frequency, it is determined that for communicate licensing history communication call duration time on a timeline whether (S1300) Chong Die with the call duration time of the communication for communications profile information.
If the determination is overlapped (S1300: no) the result is that existing on a timeline, then determine that component 1221 determines that the communication as shown in communications profile information is possible, by the used channel change of communications profile information at available channel, and it is output to generating unit 1223, and generates the communication License Info (S1800) for being added to ACK to communications profile information at generating unit 1223.
If the determination is overlapped (S1300: yes) the result is that existing on a timeline, it is determined whether it is possible that changing the communication start time (S1400) in communications profile information.
If it is determined that being as a result possible to change communication start time (S1400: yes), then determining that component 1221 changes the communication start time of communications profile to communication is the possible time, it is output to generating unit 1223, and at generating unit 1223, the communication License Info (S1800) that the communications profile information after change is added to ACK is generated.
If it is determined that communication start time (S1400: no) can not be changed, it is determined that communications profile information is output to expected throughput value calculating unit 1222 by component 1221.Then, it is expected that throughput value calculating unit 1222 calculates expected throughput value in each of such communication link, wherein the communication link be have begun communication expection throughput value calculate target (in the present embodiment, communication link 300-2) and it is possible that the expection throughput value communicated from now on calculates target (in the present embodiment, communication link 300-1) (S2000).Then, expected throughput value is output to determining component 1221.It is described later the details for calculating expected throughput value.
Determine whether frequency is overlapped (S1100), it determines whether it is likely that with another frequency for communication (S1200), determine whether call duration time is overlapped (S1300), and determine whether it is likely that the order for changing communication start time (S1400) is not limited to this, and it can change the order of the processing, determine whether frequency is overlapped (S1100) before determining whether it is likely that with another frequency for communication (S1200) and determines whether call duration time is overlapped (S1300) and is determining whether it is likely that the condition before changing communication start time (S1400) as long as meeting.
Determine that component 1221 refers to the expection throughput value exported from expected throughput value calculating unit 1222, expectation handling capacity information (here, the expectation handling capacity information of communication link 300-1) and include be stored in storage unit 230 communication licensing history in each link expectation handling capacity information (here, the expectation handling capacity information of communication link 300-2), and determine whether the expection throughput value of each communication link meets expectation handling capacity (S2100).
If it is determined that meeting expectation handling capacity (S2100: yes), then determining that communications profile information is output to generating unit 1223 by component 1221, and the communication License Info (S1800) for being added to ACK is generated at generating unit 1223.At this point, determining that expectation handling capacity information is output to storage unit 230 by component 1221, and the expectation handling capacity is stored in storage unit 230.
If it is determined that being unsatisfactory for expectation handling capacity (S2100: no), it is determined that component 1221 determines whether there is variable element, it is, determining whether to have attempted all variable element combinations (S2200).Specifically, determining whether any parameter (modulation scheme, code rate, transimission power) of communications profile information is variable (whether there is still not tried any combination).
If there is variable element (S2200: no), it is determined that the change of component 1221 includes the parameter (S2300) in communications profile information.Communications profile information after the parameter change is output to expected throughput value calculating unit 1222.Then, it is expected that throughput value calculating unit 1222 recalculates expected throughput value in each of such communication link, i.e., the expection throughput value for having begun communication calculates target (in the present embodiment, communication link 300-2) and it is possible that the expection throughput value communicated from now on calculates target (in the present embodiment, communication link 300-1) (S2000).Then, based on the communications profile after Parameter Switch, the expection throughput value that can start the communication link (in the present embodiment, communication link 300-1) of expection throughput value calculating target of these communications is calculated.
Then, these processing (S2300, S2000 and S2100) are repeated, until expected throughput value meets expectation handling capacity, or until have attempted all variable element combinations.If as the result for repeating the processing, it is expected that throughput value meets expectation handling capacity (S2100: yes), it then determines that the communications profile information for changing parameter is output to generating unit 1223 by component 1221, and generates the communication License Info (S1800) for being added to ACK at generating unit 1223.Furthermore, if having determined to attempt to all variable element combinations (S2200: yes) in S2200, it then determines that communication is refused generation signal and is output to generating unit 1223 by component 1221, and generates communication refusal information (S1900) for being added to NACK at generating unit 1223.
Return to Figure 16,1501, when generating communication permission/denial information, communication permission/denial information is output to radio parts 210 (415), and at the same time, communication permission/denial information is also output to storage unit 230 (416), and stores (418) as communication licensing history.
Next, the communication permission/denial information is transmitted to wireless terminal device 100-1 from radio parts 210, and processing is executed at wireless terminal device 100-1 based on communication permission/denial information.These operations are same as Example 1, and omit the description.
Here, the method that will be described for calculating expected throughput value.Following equation (1) can be used and obtain expected throughput value.
[equation 1]
It is expected that throughput value=
With reference to handling capacity × throughput parameter coefficient × (1- degree of disturbance)
                                …(1)
In equation (1), " referring to handling capacity " is the handling capacity occurred with the parameter (modulation scheme and code rate in the present embodiment) determined for each radio communication system.In the case where each parameter relative to the reference handling capacity of each radio communication system changes each parameter, it is possible to the respective examples for showing " throughput parameter parameter " in Tables 1 and 2, the respective examples as the coefficient for indicating handling capacity variation.
Here, table 1 shows the reference handling capacity for IEEE802.11a and bluetooth.Table 2 (a) and (b) and table 3 (a) and (b) show the throughput parameter coefficient for modulation scheme in each of IEEE802.11a and bluetooth and code rate.
It is possible that obtaining these with reference to handling capacity and throughput parameter coefficient from the specification of each radio communication system.For example, in IEEE802.11a, when the modulation scheme for reference throughput parameter is assumed to 64QAM, and code rate is assumed to 3/4, then becomes 54Mbps with reference to handling capacity.
In addition, throughput parameter coefficient is the knots modification of handling capacity when each of the parameter for modulation scheme and code rate changes relative to reference handling capacity and is as shown in table 2.As an example, handling capacity becomes 18Mbps, is the 1/3 of 54Mbps, and throughput parameter coefficient becomes 1/3 in the case where modulation scheme is from 64QAM change to QPSK.In addition, the throughput parameter coefficient in bluetooth is as shown in table 3.
[table 1]
Table 1: handling capacity is referred to
Radio communication system With reference to handling capacity
  IEEE802.11a   54Mbps
Bluetooth   1Mbps
Table 2 (a): the modulation scheme throughput parameter coefficient for IEEE802.11a
Modulation scheme Throughput parameter coefficient
  BPSK   1/6
  QPSK   1/3
  16QAM   2/3
  64QAM   1
Table 2 (b): the code rate throughput parameter coefficient for IEEE802.11a
Code rate Throughput parameter coefficient
  1/2   2/3
  2/3   8/9
  3/4   1
Table 3 (a): the modulation scheme throughput parameter coefficient for bluetooth
Modulation scheme Throughput parameter coefficient
  GFSK   1
Table 3 (b): the code rate throughput parameter coefficient for bluetooth
Code rate Throughput parameter coefficient
  1/3   1/2
  2/3   1
In addition, in equation (1), " degree of disturbance " indicates the interference magnitude caused by other communication links, and can obtain from equation (2).
[equation 2]
Figure A20058000337200331
Figure A20058000337200332
Figure A20058000337200333
In equation (2), " interference parameter coefficient " is such coefficient, it is indicated when it is assumed that the influence due to caused by the interference that the parameter determined for each radio communication system occurs is 1, in the case where executing change to each parameter, the variation of influence to interference, example is as shown in table 4 and table 5.
In addition, table 4 (a) and (b) and table 5 (a) and (b) show the interference parameter coefficient for modulation scheme in each of IEEE802.11a and bluetooth and code rate.
For example, when it is assumed that the influence due to caused by the interference in 64QAM is 1, the influence due to caused by the interference occurred in QPSK becomes 1/20 in IEEE802.11a.The receiver sensitivity characteristic (CNR is relative to BER characteristic) of each modulation scheme and code rate that can occur from each radio communication system, obtains these interference parameter coefficients.
[table 2]
Table 4 (a): the modulation scheme interference parameter coefficient for IEEE802.11a
Modulation scheme Interference parameter coefficient
  BPSK   1/40
  QPSK   1/20
  16QAM   1/4
  64QAM   1
Table 4 (b): the code rate interference parameter coefficient for IEEE802.11a
Code rate Interference parameter coefficient
  1/2   1/2
  2/3   7/10
  3/4   1
Table 5 (a): the modulator approach interference parameter coefficient for bluetooth
Modulation scheme Interference parameter coefficient
  GFSK   1
Table 5 (b): the code rate interference parameter coefficient for bluetooth
Code rate Interference parameter coefficient
  1/3   1/2
  2/3   1
Furthermore, in equation (2), " own frequency band " and " self transmission power " is the frequency band and transimission power as the communication link for executing the target that expected throughput value calculates, and " overlaid frequency bandwidth " is the own frequency band frequency band Chong Die with another communication link.In addition, " other overlapping communication link powers " is the transimission power of other communication links in overlapping bands.
According to top-operation, it is possible to obtain the expection throughput value for being used for each communication link.Specific value will be used to provide explanation below.In the present embodiment, as shown in figure 18, it is assumed that the frequency (1701 to 1705) of the communication for communication link 300-1 and the frequency (1706 to 1710) of the communication for communication link 300-2 are overlapped with the primary rate of every five frequency hoppings.Furthermore, it is assumed that the unit time is one second.
First, it is contemplated that throughput value calculating unit 1222 substitutes into each parameter in (setting) to equation (2), to calculate the degree of disturbance of communication link 300-1.It is, expected throughput value calculating unit 1222 is used as the operation equipment for calculating degree of disturbance using equation (2).Here, when modulation scheme is 64QAM and code rate is 3/4, interference parameter coefficient is 1, and overlapping bands, own frequency band, own power and other overlapping communication link powers are 1MHz, 16.6MHz, 10mW and 1mW.In addition, the time of band overlapping is 1/5 second for a part, and for 4/5 second remaining, frequency band is not overlapped, and therefore, shown in degree of disturbance following equation (3).
[equation 3]
Figure A20058000337200351
Figure A20058000337200352
= 1 5 × 1 182.6
≈ 1.1 × 10 - 3
In order to calculate expected throughput value, it is contemplated that throughput value calculating unit 1222 substitutes into the degree of disturbance and another value (with reference to handling capacity and throughput parameter coefficient) in (setting) to equation (1).It is, expected throughput value calculating unit 1222 is used as the operation equipment for calculating expected throughput value by equation (1).
It here, is 54Mbps with reference to handling capacity, because modulation scheme is 64QAM and code rate is 3/4, throughput parameter coefficient also becomes 1, and expected throughput value can be calculated as shown in following equation (4).
[equation 4]
It is expected that throughput value=54Mbps × 1 × 1 × (1-1.1 × 10-3)          …(4)
=53.94Mbps
Similarly, when the degree of disturbance for obtaining communication link 300-2 and expected throughput value, this becomes as follows.
[equation 5]
Figure A20058000337200361
= 1 5 × 10 26.6
≈ 7.5 × 10 - 2
It is expected that handling capacity=1Mbps × 1 × 1 × (1-7.5 × 10-2)             …(6)
=0.925Mbps
According to process above, it is possible to obtain the expection throughput value of each communication link.
Next, whether the expection throughput value for illustrating to determine each communication link is met expectation handling capacity.Table (6) shows the expection throughput value obtained in equation above (4) and equation (6).According to table 6, expectation handling capacity is met for communication link 300-1, but determination is unsatisfactory for expectation handling capacity for communication link 300-2.
[table 3]
Table 6: the expectation handling capacity of each communication link and expected throughput value
Communication link Expectation handling capacity It is expected that throughput value
  300-1   50Mbps   53.94Mbps
  300-2   0.95Mbps   0.925Mbps
Next, by the change for the parameter for illustrating communications profile information.It is determining at component 1221, the communication link 300-1 of communications profile information from table 6 meets expectation handling capacity, but the communication link 300-2 for having executed communication is unsatisfactory for expectation handling capacity, therefore, by keeping the influence of the degree of disturbance to other terminals provided by communication link 300-1 small, change these parameters in such a way that the expection throughput value of each communication link meets expectation handling capacity.As an example, in the present embodiment, changing transimission power.
Here, in the case where only changing the transimission power of parameter of communications profile information, it is possible to obtain the condition for meeting the transimission power of expectation handling capacity using equation (1) and equation (2).The detailed process is described below.
At communication link 300-2, it is necessary to expectation handling capacity be 0.95Mbps, therefore frequency needs to meet following equation (7).
[equation 6]
0.95≤1Mbps × 1 × 1 × (1- degree of disturbance) ... (7)
According to equation (7), it is contemplated that throughput value meets shown in the condition such as equation (8) of the degree of disturbance of expectation handling capacity.
[equation 7]
In degree of disturbing≤0.05 ... (8)
By being updated in equation (1) using the transimission power of communication link 300-1 as variable and by the condition, it is possible to obtain the condition of the transimission power for communication link 300-1.Then, equation (9) are provided and equation (8) is updated in equation (1).
[equation 8]
Then, the condition of following equation (10) is obtained from equation (9).
[equation 9]
Delivering power≤5.533i (mW) ... (10)
From the above it can be followed that changing into 5.533m or less expectation handling capacity to meet communication link 300-2 possibly through by the transimission power of communications profile information.As an example, in the present embodiment, transimission power is changed into 5mW.
Next, the transimission power of communications profile information is changed from 10mW to 5mW, communications profile information after change is output to expected throughput value calculating unit 1222, and again by the expection throughput value for using equation (1) and each communication link of equation (2) calculating.The calculating is same as described above, therefore omits.Table 7 shows the expection throughput value of each link obtained in this computation.
[table 4]
Table 7: the expectation handling capacity of each communication link and expected throughput value
(change of transimission power)
Communication link Expectation handling capacity It is expected that throughput value
  300-1   50Mbps   53.89Mbps
  300-2   0.95Mbps   0.965Mbps
According to table 7 it is appreciated that by the way that the transimission power of communications profile information is changed into 5mW, it is possible to obtain the expection throughput value whichever communication link all to meet expectation handling capacity for.
According to process above, change the parameter of communications profile information, and calculates expected throughput value.Here, in the present embodiment, change transimission power, but this is restrictive by no means, and it is also possible to changes modulation scheme or code rate.Furthermore, the condition for being used for transmission power is obtained from expectation handling capacity during changing parameter, but this is restrictive by no means, and it is also possible to changing the order of the value for each parameter, and using the parameter combination for the expectation handling capacity for meeting each communication link at first, as communications profile information.Furthermore, it is also possible to after calculating expected throughput value to all parameter combinations, and after combination meets the parameter of expectation handling capacity for each communication link, use the maximum parameter of sum of expected throughput value as communications profile information.
By communication component 210, the communication permission/denial information generated in this way is transmitted to wireless terminal device 100-1, and in a manner of not interfering the communication of communication link 300-2, starts the communication of communication link 300-1.
In this way, according to the present embodiment, based on communications profile information relevant to the communication link of communication request is generated, it is determined whether management terminal device occurs on another communication link the competition to radio resource.In the case where the competition to radio resource occurs, started by changing communications profile information or refusal communication, it is possible to be reduced under the communication environment of multiple radio communication systems mixing and interfere and improve communication quality.Furthermore, since management terminal device calculates the expection throughput value occurred on each communication link based on communications profile information, and radio resource is managed in a manner of meeting expectation handling capacity on each communication link, it is possible that executing communication in such a situation, wherein, even if also meeting expectation handling capacity in the case where frequency band and call duration time are overlapped.
In the present embodiment, only before starting the communication with each wireless terminal device, communications profile information is notified to management terminal device 1200, but may also notify information relevant to result of communication to management terminal device 1200 after completing the communication with each wireless terminal device.Information relevant to result of communication can be received signal strength indicator symbol (RSSI), signal-to-noise ratio (SNR), carrier-to-noise ratio (CNR), bit error rate, frame error rate and reception frequency characteristic signal etc..In this way, management terminal device 1200 it will be appreciated that each wireless communication link result of communication and propagation path characteristic, and it is possible to execute more appropriate control.The goodput of each communication link can also be notified to management terminal device 1200.At this point, updating throughput parameter coefficient and interference parameter coefficient by the difference based on goodput and expected throughput value at management terminal device 1200, it is possible to calculate more accurately expected throughput value.
Furthermore, in the present embodiment, by the parameter for changing communications profile information, change parameter relevant to the communication of communication link that there is notice, but this is restrictive by no means, and it is also possible to using such configuration, wherein weight is added to each communication link in communications profile information, then change parameter according to the priority or interrupts the communication from the communication link with lowest importance.As a result, can be to avoid such situation, wherein the communication link with small significance occupies the communication resource, and the communication link with high importance cannot communicate.
Furthermore, in the present embodiment, describe two parameters of the modulation scheme and code rate for throughput parameter coefficient and interference parameter coefficient, but this is restrictive by no means, and in the case where radio communication system for example executes frequency spectrum diffusion (diffusion), it is possible to only one parameter changed based on throughput parameter coefficient and interference parameter coefficient.
In addition, in the present embodiment, there are a kind of types of communication link for executing communication, but this is restrictive by no means, and it is suitable for the case where there are multiple communication links for having executed communication.In this case, it is assumed that the frequency bandwidth of the own bandwidth Chong Die with one or more of the other communication link is that overlap zone is wide, and assume that the overall transmission power for being overlapped other wireless communication links of bandwidth is other overlapping communication link powers, thus, it is possible to obtain expected throughput value using identical process.As a result, management terminal device 1200 is possible relative to the compatibility of multiple wireless communication links.
Furthermore, such situation is described above, the parameter for having executed the communication link of communication is not changed wherein, but change the parameter that may start the communication link of communication, and the parameter that has changed that the expection throughput value of two communication links all meets expectation handling capacity is applied to the communication link for being possible to that communication can be started.However, this is restrictive by no means, and there are in the case where tolerance in the expectation handling capacity occurred on the communication link for having executed communication, that is, in the case where expectation handling capacity is greater than expected throughput value etc., it is also possible to change the parameter for having executed the communication link of communication.Naturally, in the case where all there is tolerance in the expectation handling capacity occurred on two communication links, it is also possible to change the parameter of two communication links.
Such configuration is used according to the wireless terminal device of the first aspect of this configuration, it includes generating unit, in the case where the communication request with another wireless terminal device occurs, communications profile information corresponding with communication request is generated, it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；And transfer member, communications profile information generated is transmitted to management terminal device.
According to the configuration, since communications profile information is transmitted to management terminal device, it is therefore possible to determine whether that the competition to radio resource occurs at management terminal device, and in the case where the competition to radio resource occurs, start it is possible that changing communications profile information or refusing communication, interferes to be reduced under the communication environment of multiple radio communication systems mixing and improve communication quality.
Wireless terminal device according to the second aspect of the invention uses such configuration, wherein, in a first aspect, other than information, generating unit also generates communications profile information corresponding with communication request, and it includes at least one of modulation scheme, code rate, transimission power and Spreading Factors.
Wireless terminal device according to the third aspect of the invention we uses such configuration, wherein, in first aspect, other than communications profile information, generating unit also generates required throughput information corresponding with communication request, and communications profile information generated and expectation handling capacity information are transmitted to management terminal device by transfer member.
According to the configuration, since communications profile information is transmitted to management terminal device, it is therefore possible to determine whether that the competition to radio resource occurs at management terminal device, and in the case where the competition to radio resource occurs, start it is possible that changing communications profile information or refusing communication, interferes to be reduced under the communication environment of multiple radio communication systems mixing and improve communication quality.
Further, since management terminal device is possible to obtain communications profile information and expectation handling capacity information, therefore it is also possible to the expection throughput value occurred on each communication link is calculated based on communications profile information.Managing radio resource in a manner of meeting the expectation handling capacity occurred on each communication link, management terminal device it is also possible to execute communication in such a situation, wherein, even if also meeting mutual expectation handling capacity in the case where frequency bandwidth and call duration time are overlapped.
Wireless terminal device according to the fourth aspect of the invention uses such configuration, wherein in a first aspect, transfer member uses the radio communication system different from the radio communication system of communication request is corresponded to, transmission communications profile information.
Communications profile information is transmitted using the radio communication system different from the radio communication system of communication request is corresponded to according to the configuration.Therefore, the transmission and reception of communications profile information do not influence the communication with wireless terminal device.
Wireless terminal device according to the fifth aspect of the invention uses such configuration, wherein, in first aspect, receiving part is also provided, it receives the license or the communication permission/denial information of refusal that indicate communication corresponding with communications profile information from management terminal device, and in the case where receiving communication License Info, transfer member starts the communication with another wireless terminal device.
According to the configuration, due to starting the communication with wireless terminal device in the case where receiving communication License Info, not relative to the communication occurred with other wireless terminal devices, competition of the generation to radio resource, and it is possible to improve communication quality.
Wireless terminal device according to the sixth aspect of the invention uses such configuration, wherein, in the 5th embodiment, in the case where receiving communication refusal information, generating unit generates new communications profile information, and in the case where receiving communication refusal information, new traffic profile information generated is transmitted to management terminal device by transfer member.
According to the configuration, new communications profile information is transmitted in the case where receiving communication refusal information, and continues to transmit new traffic profile information, until receiving communication License Info, and the communication with wireless terminal device can be executed in a reliable fashion.
Wireless terminal device according to the seventh aspect of the invention uses such configuration, wherein, at the 5th aspect, receiving part receives communication License Info, it includes change include in information in communications profile information at least one of have changed communications profile information, and transfer member starts the communication with another wireless terminal device according to communications profile information is had changed.
According to the configuration, includes information in communications profile information and starts to communicate due to changing, a possibility that communicating with wireless terminal device, gets higher, it is therefore prevented that the competition to radio resource, and can more efficiently execute the communication with wireless terminal device.
Wireless terminal device according to the eighth aspect of the invention uses such configuration, wherein, in first aspect, receiving part is provided, it receives the communication permission/denial information for indicating license or refusal communication corresponding with communications profile information from management terminal device, and transfer member is based on the communication License Info from management terminal device, and after completing communication, the notice that communication is completed is transmitted to management terminal device.
According to the configuration, wireless terminal device notifies communication to complete to management terminal device, and then, the radio resource utilization for being applied to traffic carried can be arrived other communications by management terminal device, and efficient utilize of radio resource is possible.
Wireless terminal device according to the ninth aspect of the invention uses such configuration, wherein, in first aspect, receiving part is also provided, it receives the communication permission/denial information for indicating license or refusal communication corresponding with communications profile information from management terminal device, and the goodput in the communication based on the communication License Info from management terminal device is transmitted to management terminal device by transfer member.
According to the configuration, at management terminal device, it is possibly based on communication License Info and obtains the goodput occurred in the communications, and the difference based on the goodput and the expection throughput value calculated for the communication for obtaining the handling capacity, the actual coefficients utilized in the expected throughput value computing interval are updated, make it possible to realize more accurately expected throughput calculation.Thus, due to managing radio resource based on the accurate expected throughput value, on each Radio Link, preferred communication is possible.
Wireless terminal device according to the tenth aspect of the invention uses such configuration, it includes information acquisition section, the communications profile information by using with the communication party of another wireless terminal device is obtained, it includes radio communication system, institute's frequency of use bandwidth, the information of communication start time and communication duration；Communications profile information is compared with communication licensing history in the past, and generates the communication permission/denial information for indicating communication license or refusal according to communications profile information by generating unit；And transfer member, communication permission/denial information generated is transmitted to wireless terminal device.
According to the configuration, wireless terminal device will be transmitted to from the communication permission/denial information for comparing communications profile information and the in the past result of communication licensing history and generating, then in the case where the competition to radio resource occurs, started by changing communications profile information or refusal communication, it is possible to be reduced under the communication environment of multiple radio communication systems mixing and interfere and improve communication quality.
Management terminal device according to the eleventh aspect of the invention uses such configuration, wherein, at the tenth aspect, the communications profile information obtained by information acquisition section, other than the information (radio communication system, institute's frequency of use bandwidth, the information of communication start time and communication duration), also comprising at least one of modulation scheme, code rate, transimission power and the Spreading Factor by being used with the communication party of another wireless terminal device.
Management terminal device according to the twelfth aspect of the invention uses such configuration, wherein, at the tenth aspect, information acquisition section, other than communications profile information, also obtain the expectation handling capacity information between communication party and another wireless terminal device, and generating unit communicates licensing history using communications profile information and in the past, calculate the expection handling capacity on each communication link, and by comparing expected throughput value and expectation handling capacity information, the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information.
According to the configuration, the communication permission/denial information generated from the result for comparing the expection throughput value and expectation handling capacity information calculated based on communications profile information is transmitted to wireless terminal device, it is therefore possible to execute communication in such a situation, even if wherein also meeting mutual expectation handling capacity in the case where being overlapped on each communication link in frequency bandwidth and call duration time.
Management terminal device according to the thirteenth aspect of the invention uses such configuration, wherein, at the 12nd aspect, information acquisition section, other than communications profile information and expectation handling capacity information, also goodput is obtained from wireless terminal device, and generating unit, other than communications profile information and expectation handling capacity information, expected throughput value is also calculated using goodput, and by comparing expected throughput value and expectation handling capacity information, the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information.
According to the configuration, at management terminal device, it is possibly based on communication License Info and obtains the goodput occurred in the communications, and it is possibly based on the difference of goodput and the expection throughput value calculated for the communication for obtaining the handling capacity, the actual coefficients utilized in the expected throughput value computing interval are updated, make it possible to realize more accurately expected throughput calculation.The communication permission/denial information generated from the result for being more accurately expected throughput value and expectation handling capacity information is transmitted to wireless terminal device, therefore, it is possible that executing communication in such a situation, even if wherein also meeting mutual expectation handling capacity in the case where being overlapped on each communication link in frequency bandwidth and call duration time.
Management terminal device according to the fourteenth aspect of the invention uses such configuration, wherein, at the tenth aspect, information acquisition section uses the radio communication system different from the radio communication system by using with the communication party of another wireless terminal device, receive communications profile information, and transfer member uses radio communication system identical with the radio communication system of receiving part, transmission communication permission/denial information.
Communications profile information is transmitted using the radio communication system different from the radio communication system by using with the communication party of another wireless terminal device according to the configuration, therefore, the transmission and reception of communications profile information do not influence the communication with wireless terminal device.
Management terminal device according to the fifteenth aspect of the invention uses such configuration, wherein, at the tenth aspect, generating unit generates communication License Info, it includes if change include in information in communications profile information at least one of if communicate permit it is the communications profile information that the information is changed in possible situation.
According to the configuration, changing includes information in communications profile information, and therefore, a possibility that communicate with wireless terminal device gets higher, it is therefore prevented that the competition to radio resource, and it is possible to the more efficiently communication of execution and wireless terminal device.
Management terminal device according to the sixteenth aspect of the invention uses such configuration, wherein, at the 12nd aspect, generating unit generates communication License Info, it includes the communications profile information having changed, wherein the information is changed in the case where the expection throughput value occurred on each communication link is possible to meet expectation handling capacity if at least one in the information for including in communications profile information if change.
According to the configuration, if at least one in the information for including in communications profile information if change in the case where the expection throughput value occurred on each communication link is possible to meet expectation handling capacity, the communications profile information having been changed to is transmitted to wireless terminal device, therefore, it is possible that executing communication in such a situation, even if wherein also meeting mutual expectation handling capacity in the case where the frequency bandwidth and call duration time overlapping on each communication link.
Management terminal device according to the seventeenth aspect of the invention uses such configuration, wherein, at the 12nd aspect, generating unit is in such a way that the total of the expection throughput value of each link is maximum, change includes at least one item of information in communications profile information, and generates the communication License Info for having updated communications profile information comprising changing the information.
Management terminal device according to the eighteenth aspect of the invention uses such configuration, wherein in the tenth aspect, also offer storage unit, storage communications profile information corresponding with communication License Info, as communication licensing history.
According to the configuration, storage communications profile information corresponding with communication License Info, as communication licensing history, therefore, it is possible to more accurately understand the condition of the communication for actually executing with wireless terminal device at management terminal device.
Management terminal device according to the nineteenth aspect of the invention uses such configuration, wherein at the 18th aspect, additionally provides storage unit, other than communicating licensing history, also stores expectation handling capacity information corresponding with communication License Info.
Wireless communication system according to a twentieth aspect of the invention uses such configuration, wherein wireless communication system has multiple wireless terminal devices and management terminal device, wherein wireless terminal device includes: generating unit, in the case where the communication request with another wireless terminal device occurs, communications profile information corresponding with communication request is generated, it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；And transfer member, communications profile information generated is transmitted to management terminal device and management terminal device includes: receiving part, receives communications profile information from wireless terminal device；The received communications profile information of institute is compared with communication licensing history in the past, and generates the communication permission/denial information for indicating communication license or refusal according to communications profile information by generating unit；And transfer member, communication permission/denial information generated is transmitted to wireless terminal device.
According to the configuration, communications profile information is transmitted to management terminal device by wireless terminal device, and management terminal device will be transmitted to wireless terminal device from the communication permission/denial information for comparing communications profile information and the result of communication licensing history generates in the past.As a result, management terminal device changes communications profile information or refusal communication starts in the case where competition of the generation to radio resource, and it is therefore possible to reduce interference under the communication environment that multiple radio communication systems mix and improve quality.
Wireless communication system according to the twenty-first aspect of the invention uses such configuration, wherein, at the 20th aspect, also offer link terminal equipment, it to be used for transmission, reception and relayed communications profile information and communication permission/denial information between wireless terminal device and management terminal device.
According to the configuration, relayed communications profile information and communication permission/denial information it is therefore possible to predefine the radio communication system between management terminal device and link terminal equipment, and need not switch radio communication system at management terminal device.
Wireless communication system according to the twenty-second aspect of the invention uses such configuration, wherein, in the wireless communication system with multiple wireless terminal devices and management terminal device, wireless terminal device includes: generating unit, in the case where the communication request with another wireless terminal device occurs, the trigger signal of notice communication request is generated；And transfer member, trigger signal generated is transmitted to management terminal device, and management terminal device includes: receiving part, receives trigger signal from wireless terminal device；Obtaining widget receives trigger signal, and obtains communications profile information relevant to the radio communication system of communication request is corresponded to；Generating unit, relatively acquired communications profile information communicated licensing history with the past, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And transfer member, communication permission/denial information generated is transmitted to wireless terminal device.
According to the configuration, trigger signal is transmitted to management terminal device by wireless terminal device, and management terminal device will be transmitted to wireless terminal device from the communication permission/denial information for comparing the communications profile information obtained according to trigger signal and the result of communication history generates in the past.As a result, the available communications profile information being stored in advance in such as its own equipment of management terminal device, or can be by internet from external download communication profile information.Therefore, the communications profile information with bulk information need not be transmitted to management terminal device by wireless terminal device, and it is possible to reduce the information content that management terminal device is transmitted to from wireless terminal device.
Wireless communications method according to the twenty-third aspect of the invention uses such configuration, wherein for the wireless communications method with multiple wireless terminal devices and the wireless communication system of management terminal device the following steps are included: in the case where the communication request with another wireless terminal device occurs, wireless terminal device generates communications profile information corresponding with communication request, and it includes radio communication system, institute's frequency of use bandwidth, the information of communication start time, and/or communication duration；Wireless terminal device transmits communications profile information generated；Management terminal device obtains communications profile information corresponding with communication request, and it includes radio communication system corresponding with communication request, institute's frequency of use bandwidth, the information of communication start time, and/or communication duration；The relatively more acquired communications profile information of management terminal device and in the past communication licensing history, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And communication permission/denial information generated is transmitted to wireless terminal device by management terminal device.
According to this method, management terminal device obtains communications profile information, and will be transmitted to wireless terminal device from the communication permission/denial information for comparing communications profile information and the result of communication licensing history generates in the past.As a result, management terminal device changes communications profile information or refusal communication starts, and it is possible to reduce under the communication environment of multiple radio communication systems mixing and interfere and improve communication quality in the case where the competition to radio resource occurs.
Arithmetic equipment according to the twenty-fourth aspect of the invention uses such configuration, wherein, arithmetic equipment calculates interference, it indicates the amplitude of the radio communication system due to the second communication link applications different from the first communication link and the interference as caused by the first communication link, the arithmetic equipment includes: set parts, interference parameter coefficient is set, for calculating the unit time of degree of disturbance, first link bandwidth, overlaid frequency bandwidth, in the first performance number of the first communication link that each timing occurs, and the second performance number of the second communication link occurred on overlapping bands, wherein interference parameter coefficient indicates the relative ratios of interference effect variation in the case that each messaging parameter occurred in the radio communication system for being applied to the first communication link changes, first link bandwidth indicates that each timing within the unit time is led to by first Believe the frequency band of link utilization, overlaid frequency bandwidth indicates to be directed to each timing, the bandwidth of the frequency band utilized on the first communication link and the overlapping frequency band of the frequency band utilized on the second communication link；And calculating unit calculates degree of disturbance from setting value using following equation.
[equation 10]
Figure A20058000337200461
Figure A20058000337200462
Figure A20058000337200463
Operation equipment according to the twenty-fifth aspect of the invention includes: set parts, degree of disturbance is set, with reference to handling capacity and throughput parameter coefficient, wherein degree of disturbance indicates the amplitude of the radio communication system due to the second communication link applications different from the first communication link and the interference as caused by the first communication link, it is related to the radio communication system of the first communication link is applied to reference to handling capacity, and throughput parameter coefficient indicates ratio of the handling capacity relative to reference handling capacity in the case where being another parameter by parameter change corresponding with reference handling capacity；And calculating unit calculates the expection handling capacity of the first communication link from setting value using following equation.
[equation 11]
It is expected that throughput value=
With reference to handling capacity × throughput parameter coefficient × (1- degree of disturbance)
The Japanese patent application No.2005-310039 that this specification is submitted based on the Japanese patent application No.2004-310813 and on October 25th, 2005 submitted on October 26th, 2004, herein by its hereby incorporated by reference.
Industrial application
Wireless terminal device, management terminal device and wireless communications method according to the present invention can reduce interference under the communication environment that multiple radio communication systems mix and occur and improve communication quality, and such as have it is being mixed for plurality of radio communication system, in the wireless communication system in family or office.

Claims (25)

1. a kind of management terminal device, comprising:
Information acquisition section obtains the communications profile information by using with the communication party of another wireless terminal device, and it includes radio communication system, used frequency bandwidth, the information of communication start time and communication duration；
Communications profile information and past communication licensing history are compared by generating unit, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And
Communication permission/denial information generated is transmitted to wireless terminal device by transfer member.
2. management terminal device according to claim 1, the communications profile information wherein obtained by information acquisition section, besides that information, also comprising at least one of modulation scheme, code rate, transimission power and the Spreading Factor by being used with the communication party of another wireless terminal device.
3. management terminal device according to claim 1, in which:
Information acquisition section, the expectation handling capacity information other than communications profile information, also between acquisition communication party and another wireless terminal device；And
Generating unit communicates licensing history using communications profile information and in the past, calculate the expection handling capacity on each communication link, and by comparing expected throughput value and expectation handling capacity information, the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information.
4. management terminal device according to claim 3, in which:
Information acquisition section also obtains goodput from wireless terminal device other than communications profile information and expectation handling capacity information；And
Generating unit, other than communications profile information and expectation handling capacity information, expected throughput value is also calculated using goodput, and by comparing expected throughput value and expectation handling capacity information, the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information.
5. management terminal device as described in claim 1, in which:
Information acquisition section uses the radio communication system different from the radio communication system by using with the communication party of another wireless terminal device, receives communications profile information；And
Transfer member uses radio communication system identical with the radio communication system of receiving part, transmission communication permission/denial information.
6. management terminal device as described in claim 1, wherein generating unit generates communication License Info, it includes if change include in information in communications profile information at least one of if communicate permit it is the communications profile information having changed that the information is changed in possible situation.
7. management terminal device as claimed in claim 3, in which:
Generating unit generates communication License Info, it includes the communications profile information having changed, wherein changing the information in the case where the expection throughput value occurred on each communication link is possible to meet expectation handling capacity if at least one in the information for including in communications profile information if change.
8. wireless terminal device as claimed in claim 3, wherein generating unit is in such a way that the total of the expection throughput value of each link is maximum, change includes at least one item of information in communications profile information, and generates the communication License Info for having updated communications profile information comprising changing the information.
9. management terminal device according to claim 1 further includes storage unit, storage communications profile information corresponding with communication License Info, as communication licensing history.
10. management terminal device according to claim 9 further includes storage unit, other than communicating licensing history, required throughput information corresponding with communication License Info is also stored.
11. a kind of wireless terminal device, comprising:
Generating unit, in the case where the communication request with another wireless terminal device occurs, communications profile information corresponding with communication request is generated, it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；And
Communications profile information generated is transmitted to management terminal device by transfer member.
12. wireless terminal device according to claim 11, wherein besides that information, generating unit also generates communications profile information corresponding with communication request, and it includes at least one of modulation scheme, code rate, transimission power and Spreading Factors.
13. wireless terminal device according to claim 11, wherein generating unit also generates expectation handling capacity information corresponding with communication request other than communications profile information, and
Communications profile information generated and expectation handling capacity information are transmitted to management terminal device by transfer member.
14. wireless terminal device according to claim 11, wherein transfer member uses the radio communication system different from the radio communication system of communication request is corresponded to, communications profile information is transmitted.
15. wireless terminal device as claimed in claim 11 further includes receiving part, the communication permission/denial information for indicating communication license corresponding with communications profile information or refusal is received from management terminal device, in which:
In the case where receiving communication License Info, transfer member starts the communication with another wireless terminal device.
16. wireless terminal device according to claim 15, in which:
Generating unit generates new communications profile information in the case where receiving communication refusal information；And
In the case where receiving communication refusal information, new traffic profile information generated is transmitted to management terminal device by transfer member.
17. wireless terminal device as claimed in claim 15, in which:
Receiving part receives communication License Info, includes the communications profile information having changed of at least one in information in communications profile information it includes changing；And
Transfer member starts the communication with another wireless terminal device according to the communications profile information having changed.
18. wireless terminal device according to claim 11 further includes receiving part, the communication permission/denial information for indicating license or refusal communication corresponding with communications profile information is received from management terminal device, in which:
Transfer member is based on the communication License Info from management terminal device, and after completing communication, the notice that communication is completed is transmitted to management terminal device.
19. wireless terminal device according to claim 11 further includes receiving part, the communication permission/denial information for indicating license or refusal communication corresponding with communications profile information is received from management terminal device, in which:
Goodput in communication based on the communication License Info from management terminal device is transmitted to management terminal device by transfer member.
20. a kind of wireless communication system has multiple wireless terminal devices and management terminal device,
Wireless terminal device includes:
Generating unit, in the case where the communication request with another wireless terminal device occurs, communications profile information corresponding with communication request is generated, it includes radio communication system, used frequency bandwidth, the information of communication start time, and/or communication duration；And
Communications profile information generated is transmitted to management terminal device by transfer member, and
Management terminal device includes:
Receiving part receives communications profile information from wireless terminal device；
The received communications profile information of institute and past communication licensing history are compared by generating unit, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And
Communication permission/denial information generated is transmitted to wireless terminal device by transfer member.
21. radio terminal system according to claim 20 further includes link terminal equipment, it to be used for transmission, reception and relayed communications profile information and communication permission/denial information between wireless terminal device and management terminal device.
22. a kind of wireless communication system has multiple wireless terminal devices and management terminal device,
Wireless terminal device includes:
Generating unit generates the trigger signal of notice communication request in the case where the communication request with another wireless terminal device occurs；And
Trigger signal generated is transmitted to management terminal device by transfer member, and
Management terminal device includes:
Receiving part receives trigger signal from wireless terminal device；
Obtaining widget receives trigger signal, and obtains communications profile information relevant to the radio communication system of communication request is corresponded to；
Generating unit, relatively acquired communications profile information communicated licensing history with the past, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And
Communication permission/denial information generated is transmitted to wireless terminal device by transfer member.
23. a kind of wireless communications method, for the wireless communication system with multiple wireless terminal devices and management terminal device, comprising the following steps:
In the case where the communication request with another wireless terminal device occurs, wireless terminal device generates communications profile information corresponding with communication request, and it includes radio communication system, institute's frequency of use bandwidth, the information of communication start time, and/or communication duration；
Wireless terminal device transmits communications profile information generated；
Management terminal device obtains communications profile information corresponding with communication request, and it includes radio communication system corresponding with communication request, institute's frequency of use bandwidth, the information of communication start time, and/or communication duration；
The relatively more acquired communications profile information of management terminal device and in the past communication licensing history, and the communication permission/denial information for indicating communication license or refusal is generated according to communications profile information；And
Communication permission/denial information generated is transmitted to wireless terminal device by management terminal device.
24. a kind of arithmetic equipment calculates degree of disturbance, the amplitude of the radio communication system due to the second communication link applications different from the first communication link and the interference as caused by the first communication link is indicated, which includes:
Set parts, interference parameter coefficient is set, for calculating the unit time of degree of disturbance, first link bandwidth, overlaid frequency bandwidth, in the first performance number of the first communication link that each timing occurs, and the second performance number of the second communication link occurred on overlapping bands, wherein interference parameter coefficient indicates the relative ratios of interference effect variation in the case that each messaging parameter occurred in the radio communication system for being applied to the first communication link changes, first link bandwidth indicates the frequency band that each timing within the unit time is utilized by the first communication link, overlaid frequency bandwidth indicates to be directed to each timing, the bandwidth of the frequency band utilized on the first communication link and the overlapping frequency band of the frequency band utilized on the second communication link；And
Calculating unit calculates degree of disturbance from setting value using following equation:
[equation 1]
Figure A2005800033720006C2
25. a kind of arithmetic equipment, comprising:
Set parts, setting indicate the radio communication system due to the second communication link applications different from the first communication link and the degree of disturbance of the amplitude of the interference as caused by the first communication link, applied to the radio communication system of the first communication link relevant with reference to handling capacity and indicate the throughput parameter coefficient of ratio of the handling capacity relative to reference handling capacity in the case where being another parameter by parameter change corresponding with reference handling capacity；And
Calculating unit calculates the expection handling capacity of the first communication link from setting value using following equation:
[equation 2]
It is expected that throughput value=
With reference to handling capacity × throughput parameter coefficient × (1- degree of disturbance)
CNA2005800033729A 2004-10-26 2005-10-26 Radio terminal device, management terminal device and radio communication method Pending CN1914856A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004310813 2004-10-26
JP310813/2004 2004-10-26
JP310039/2005 2005-10-25

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CN1914856A true CN1914856A (en) 2007-02-14

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CN (1) CN1914856A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104170502A (en) * 2012-03-16 2014-11-26 阿尔卡特朗讯 Resource allocation
CN116112933A (en) * 2023-04-12 2023-05-12 荣耀终端有限公司 Communication method and electronic equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104170502A (en) * 2012-03-16 2014-11-26 阿尔卡特朗讯 Resource allocation
US9894661B2 (en) 2012-03-16 2018-02-13 Alcatel Lucent Resource allocation
CN104170502B (en) * 2012-03-16 2019-03-19 阿尔卡特朗讯 Method for resource allocation and equipment
CN116112933A (en) * 2023-04-12 2023-05-12 荣耀终端有限公司 Communication method and electronic equipment
CN116112933B (en) * 2023-04-12 2023-08-29 荣耀终端有限公司 Communication method and electronic equipment

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