CN101207458A - Cell supporting simultaneous and differing concurrent interfering transmission parameters and techniques - Google Patents
Cell supporting simultaneous and differing concurrent interfering transmission parameters and techniques Download PDFInfo
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- CN101207458A CN101207458A CNA2007101694490A CN200710169449A CN101207458A CN 101207458 A CN101207458 A CN 101207458A CN A2007101694490 A CNA2007101694490 A CN A2007101694490A CN 200710169449 A CN200710169449 A CN 200710169449A CN 101207458 A CN101207458 A CN 101207458A
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Abstract
A wireless network infrastructure that adapts encoding approach and frame parameters of concurrent interfering transmission and receptions in response to dynamically varying channel conditions. The channel conditions are determined by number of associated wireless end point devices within a cell, their capabilities, anticipated bandwidth usage, QOS (Quality Of Service) demands, priority of service and idle states, cell overlap interferences, near-far interferences, and noises. The wireless network infrastructure consists of an access point that is adapted to receive and transmit concurrent interfering transmissions utilizing a plurality of encoding approach and frame parameters. In addition, the wireless network infrastructure consists of a plurality of end point devices that are adapted to transmit and receive using concurrent interfering transmissions with one or more of the plurality of encoding approach and frame parameters.
Description
Technical field
The present invention relates to radio communication, relate in particular to the WAP (wireless access point) that is used for packet switching network.
Background technology
WAP (wireless access point) can offer the wireless route service of a plurality of mobile radio terminal devices and be widely used in public and individual.A kind of typical use of WAP (wireless access point) comprise to the public arena for example the notebook computer user in workshop, hotel or the airport internet or in-house network route service are provided.Generally, WAP (wireless access point) is provided to the connection of backbone network wirelessly for wireless terminal device.WAP (wireless access point) can also for example be provided to the wireless access of internet at private site in the family.
Often in public places in, a plurality of WAP (wireless access point) bridge joints are together to provide wider covering.Realization of Communication between WAP (wireless access point) and the terminal wireless equipment is based on the rule that pre-defines or protocol suite.The portable terminal wireless device comprises individual or laptop computer, server, set-top box and hand-held data/communication apparatus.
Particularly in public in, the load of WAP (wireless access point) is not inhomogeneous variation.This is that these channel statuss comprise quantity, bandwidth use, QOS (service quality), service priority, interference and the noise of wireless terminal device relevant in the sub-district because the variation of channel status causes.So just in WLAN (wireless local area network), produce performance bottleneck, cause very poor bit per second transfer rate even cause connecting disconnection.
For example hotel and airport under PE, because above-mentioned factor, these channel statuss are dynamic changes in a time cycle.For example, use the mobile phone users of VoIP (networking telephone) can run into periodic sound delay time and broken string.
After correlation technique by the many aspects of the present invention introduced with reference to the accompanying drawings with the application's further part compared, these and other restriction and the drawback of prior art were more fully understood to one skilled in the art.
Summary of the invention
Describing and details of the present invention description and claims, will further provide device of the present invention and method of operation in conjunction with accompanying drawing hereinafter is concise and to the point.
According to an aspect of the present invention, provided a kind of access point circuit of supporting to receive the concurrent interference transmission that comes from a plurality of terminal equipments, described access point circuit comprises:
Reception comes from the receiver circuit of the concurrent interference transmission of a plurality of terminal equipments, and described concurrent interference transmission is to use first coded system to make up;
Communicate to connect treatment circuit, the described concurrent interference transmission of decoding in described receiver circuit;
Communicate to connect transmitter circuitry in described treatment circuit;
Described treatment circuit produces in order to first coded system is made into the instruction of second coded system based on the variation of channel status;
Described treatment circuit is sent in a plurality of terminal equipments at least one to described instruction by transmitter circuitry;
Described receiver circuit receives the concurrent interference transmission of using described second coded system to make up;
The concurrent interference transmission that use second coded system that described processor circuit decoding receives makes up.
As preferably, described treatment circuit transmits described instruction when a frame begins.
As preferably, described frame comprises one or more subframe.
As preferably, described instruction is applicable to one of them subframe.
As preferably, described first coded system comprises the first concurrent interference emission mode.
As preferably, described second coded system comprises the second concurrent interference emission mode.
As preferably, described channel status comprises the load on the described access point.
As preferably, described load is by the quantity decision that participates in a plurality of terminal equipments in the communication.
As preferably, described load is by the quality of service requirement decision of a plurality of wireless terminal devices that link with described access point circuit.
As preferably, described load is by the noise decision relevant with described access point circuit.
As preferably, described load is by the interference decision of described a plurality of associated terminal equipment.
According to an aspect of the present invention, provided a kind of terminal device circuitry of supporting that concurrent interference receives, described terminal device circuitry comprises:
Receive the receiver circuit of concurrent interference transmission;
Communicate to connect treatment circuit, detect described concurrent interference transmission in described receiver circuit;
Described treatment circuit receives in order to first coded system is made into the instruction of second coded system;
Described treatment circuit is adjusted to described second coded system to respond described instruction;
Described treatment circuit detects the data of the concurrent interference transmission that comes from use second coded system that receives.
As preferably, described first coded system comprises the first concurrent interference emission mode.
As preferably, described second coded system comprises the second concurrent interference emission mode.
As preferably, more than the 3rd concurrent interference emission mode comprises the pattern that is determined by at least one frame parameter.
As preferably, described at least one frame parameter comprises loaded length.
According to an aspect of the present invention, provide a kind of in wireless network architecture by transmitting the performed method of access point of a plurality of packets with a plurality of terminal equipments, described method comprises:
Establish a communications link with each terminal equipment in described a plurality of terminal equipments;
The identification channel state;
Determine emission mode based on coded system and frame parameter;
Broadcast described emission mode; With
Utilize described emission mode to communicate by letter with described a plurality of terminal equipments.
As preferably, described emission mode comprises at least one in one of one or more coded system pattern of single emission mode, complete concurrent interference emission mode, the concurrent interference emission mode of a plurality of part.
As preferably, each pattern in the concurrent interference emission mode of described a plurality of parts allows a plurality of terminal equipments of selected quantity to launch concomitantly or receive.
As preferably, described a plurality of coded system patterns are by employed coded system decision.
By detailed description of the present invention hereinafter and with reference to the accompanying drawings, other characteristic and advantage of the present invention is tangible to those skilled in the art.
Description of drawings
Fig. 1 provides is to support simultaneously and the not sub-district of concurrent simultaneously interference emission parameter and the block diagram of technology that wherein WAP (wireless access point) is adjusted coded system and the frame parameter that concurrent interference transmits and receives based on the channel status that changes;
Fig. 2 is the block diagram according to the WAP (wireless access point) of the embodiment structure of Fig. 1;
Fig. 3 is the block diagram according to the downstream transmitter part of the WAP (wireless access point) of the embodiment structure of Fig. 2;
Fig. 4 is the block diagram according to the downlink receiver part of the WAP (wireless access point) of the embodiment structure of Fig. 2;
Fig. 5 is the block diagram according to the terminal equipment of the concurrent interference emission of the many algorithms of support of the embodiment structure of Fig. 1;
Fig. 6 has provided the typical sequential chart of the concurrent interference emission mode of many algorithms in no contention and contention;
Fig. 7 has provided the typical sequential chart of the concurrent interference emission mode of many algorithms part and complete concurrent interference emission mode in no contention and contention;
Fig. 8 has provided according to WAP (wireless access point) of the present invention and has been used for the coded system that concurrent interference transmits and receives and the general utility functions flow chart of frame parameter based on the channel status adjustment that changes;
Fig. 9 has provided according to WAP (wireless access point) of the present invention and has been used for the coded system that concurrent interference transmits and receives and the detailed functions flow chart of frame parameter based on the channel status adjustment that changes.
Embodiment
Fig. 1 provides is to support simultaneously and the not sub-district of concurrent simultaneously interference emission parameter and the block diagram 105 of technology that wherein WAP (wireless access point) 109 is used for coded system and the frame parameter that concurrent interference transmits and receives based on the channel status adjustment that changes.Especially, based on for example noise and the interference in performance, quality of service requirement, the use of preassignment bandwidth, Idle state and the sub-district of wireless terminal device of various factors, WAP (wireless access point) 109 is periodically assessed channel status.Then, WAP (wireless access point) 109 is adjusted the coded system that forms concurrent interference emission and corresponding frame parameter.In fact, WAP (wireless access point) 109 is utilized one of a plurality of possible pattern that obtains from various concurrent interference launching code modes, and further cuts apart each pattern based on frame parameter.
Therefore, in one embodiment of the invention, concurrent interference emission mode comprises the various modes based on coded system, and for example the concurrent interference emission mode of algorithm-1 is to the concurrent interference emission mode of algorithm-n.Similarly, described concurrent interference emission mode also comprises the various modes based on frame parameter, for example single emission mode, the concurrent interference emission mode of a plurality of part (that is, part is disturbed emission mode a to n) and complete concurrent interference emission mode.Any preset time in a frame, WAP (wireless access point) 109 is utilized a kind of in the various modes to launch or is received.Frame parameter also comprises loaded length.In other embodiments, operate wireless access point 109 can be different with the logic of adjusting coded system and frame parameter.
Based on above-mentioned pattern, each wireless terminal device in the sub-district can possess different performances, therefore may use one or more pattern emission and/or receptions.Four kinds of wireless terminal devices 141,143,145,147 as shown in the figure, each can both be with one or more different mode operations.
The terminal equipment 141 of supporting single emission is traditional equipment, and it only can use single emission mode.During single emission mode, the coding aggressiveness is minimum, and therefore relevant with coding expense also is minimum.This pattern is suitable for the situation that all relevant wireless terminal devices all can only carry out the load minimum of the situation of single transmission or WAP (wireless access point) 109.In the no contention of a frame of operating with single emission mode, wireless terminal device for example 141 waits for that short interFrameGaps (SIFS) then begin to send.Similarly, this WAP (wireless access point) 109 also can send data to wireless terminal device 141 in the no contention after the SIFS interval.In contention, wireless terminal device 141 or WAP (wireless access point) 109 send request earlier and send (RTS) signal, just begin to send data after the clear to send that obtains receiving object (CTS) signal.After finishing the data transmission, wireless terminal device 141 or WAP (wireless access point) 109 confirmations of receipt (ACK) signal are received by the other side to confirm.Any contention that is caused by a plurality of equipment can solve by the mode based on arbitration according to agreement.
On the other hand, support the terminal equipment 145 of the concurrent interference emission of algorithm-1 only to use concurrent interference emission algorithm-1 code to operate, and WAP (wireless access point) 109 can only be adjusted and the code dependent frame parameter of algorithm-1.Similarly, support the terminal equipment 147 of the concurrent interference emission of algorithm-n can only use concurrent interference emission algorithm-n code to operate.Some other wireless terminal device is 143 any operations that can use in the existing multiple algorithm for example.Under these circumstances, WAP (wireless access point) 109 can be selected any pattern by selecting the corresponding frame parameter of one of a plurality of available algorithm and they.The sequential chart that the data of using algorithm-1 to arrive the concurrent interference emission mode of n in no contention and contention transmit as shown in Figure 6.
Under the concurrent interference emission mode of part, promptly the concurrent interference emission mode of part a is to n, allow the relevant wireless terminal device of communicating by letter with WAP (wireless access point) 109 for example 143,145 and 147 quantity change based on selected pattern.The sequential chart that is applicable to the concurrent interference emission mode of a kind of part can be described with reference to figure 7.
For example, the WAP (wireless access point) 109 that is installed in the public place can be served a plurality of users that carry mobile radio terminal device 141,143,145 and/or 147 in a sub-district.Mobile radio terminal device 141,143,145 and/or 147 can be user's notebook computer or a handheld computer device, and the user utilizes WAP (wireless access point) to use the service of a period of time.Arrival in the sub-district and the user who leaves be change at random and loading on of WAP (wireless access point) 109 neither be uniform within one day.WAP (wireless access point) 109 is periodically assessed channel status and is determined to use the mobile radio terminal device 141,143,145 of service and/or 147 quantity, their performance, bandwidth demand, QoS requirement.Service priority, Idle state.In addition, interference and the noise in the WAP (wireless access point) 109 assessment cell environments.By considering all of these factors taken together, what WAP (wireless access point) 109 was selected above-mentioned a plurality of possible pattern then is notified to a plurality of wireless terminal devices 141,143,145 and/or 147 in the lump.
In the no contention under the concurrent interference emission mode of part (for example using any algorithm), WAP (wireless access point) 109 can allow the wireless terminal device 141,143,145 and/or 147 of selected quantity to launch or receive.WAP (wireless access point) 109 can detect any signal that comes from a plurality of wireless terminal devices 141,143,145 and/or 147 by using suitable detection algorithm.A plurality of wireless terminal devices 141,143,145 and/or one of 147 can determine that this is a no contention, identification use WAP (wireless access point) 109 services equipment quantity and begin to launch data based on SIFS.
In contention, wireless terminal device 141,143,145 and/or 147 must send request and send (RTS) signal, is beginning to launch data after WAP (wireless access point) 109 receives CTS.After finishing the data transmission, wireless terminal device 141,143,145 and/or 147 receives the CK signals from WAP (wireless access point) 109.Complete concurrent interference emission mode can not forced any restriction to wireless terminal device 141,143,145 and/or 147, and allows any amount of wireless terminal device 141,143,145 and/or 147 to launch.
WAP (wireless access point) 109 includes radio transceiver circuitry 121, realizes adjustment to one of above-mentioned pattern based on coded system and frame parameter.Radio transceiver circuitry 121 comprises that further the concurrent interference of single and many algorithms transmits and receives circuit 123, and this circuit communication is connected to a plurality of antennas 127.The each side of the adjustment of treatment circuit 113 and main controller circuit 115 control WAP (wireless access point) 109.Memory 117 can comprise necessary software, the concurrent interference emission of for example single/many algorithms and detect process software (not providing among the figure), their data that receive under can the assist process various modes.Uplink transmitter 111 communicates to connect described WAP (wireless access point) 109 and arrives for example internet 107 of backbone network.The composition of the embodiment of a WAP (wireless access point) like this can be with reference to figure 2, and corresponding radio transceiver circuitry can be with reference to figure 3 and Fig. 4.Wireless terminal device for example 143,145 and 147 also can comprise a plurality of antennas, and for example 161,163 and 165.Support that the composition of the terminal equipment of the concurrent interference emission of many algorithms can be with reference to figure 5.
Fig. 2 is the block diagram 205 of the WAP (wireless access point) corresponding with Fig. 1.Wireless access dot circuit 207 can be represented any WAP (wireless access point), for example among Fig. 1 can route data packets WAP (wireless access point) 109.Wireless access dot circuit 207 mainly comprises central processing circuit 253, local storage 261, user interface 251, uplink transmitter circuit 271, bridgt circuit 273, downlink wireless transceiver circuit 231 and main descending controller circuitry 209.These parts by one or more system buss, dedicated communication path or other directly or the indirect communication path interconnect.In each embodiment, this central processing unit circuit 253 can be microprocessor, digital signal processor, state machine, application-specific integrated circuit (ASIC), field programmable gate array or other treatment circuit.In addition, in each embodiment, main descending controller circuitry 209 can be control card or comprise microcontroller or the part of the WAP (wireless access point) card of microprocessor.
Local storage 261 can be random asccess memory, read-only memory, flash memory, disc driver, CD-ROM driver or other type stores of energy storage computation machine instruction and data.Local storage 261 comprise software part for example single/the concurrent interference of many algorithms emission detects and process software 257, in order to the signal of assisting 231 detections of downlink wireless transceiver circuit to receive.The signal of described reception can comprise the concurrent interference transmission of the wireless terminal device that comes from one of a plurality of use various modes; These software sections that detection and process software 257 are launched in concurrent interference as single/many algorithms can be assisted separately these signals by utilizing corresponding algorithm.In other words, these software sections utilize the information processing technology that the terminal equipment of the concurrent interference emission tool of many algorithms to the concurrent interference emission of a plurality of supports is provided.In addition, they can also solve each the concurrent interference reception of Eastern Europe under concurrent emission mode of part and the complete concurrent emission mode.Described single/the concurrent interference of multiple algorithm emission detects and process software 257 can comprise multiple concurrent Interference Detection algorithm and concurrent interference emission algorithm, with the data in assist process reception and the emission process.
About the decision and the contention of single emission mode, the concurrent interference emission mode of part, complete concurrent interference emission mode and a plurality of multiple algorithm emission modes with there is not contention, in beacon period, send to wireless terminal device by main descending controller circuitry 209.In beacon period, main descending controller circuitry 209 is notified relevant equipment the time span of the frame that is adapted to next frame or subframe or each part, pattern and the loaded length of frame.Based on the multiple standards for example quantity of relevant wireless terminal device, their performance, preassignment utilized bandwidth, QOS demand (service quality), service priority, Idle state, the overlapping interference in sub-district, the far and near interference and noise in the sub-district, the descending controller circuitry 209 of this master can determine the time span of these parts.Beacon signal is being controlled the each side of wireless terminal device, comprises that emission mode, no contention insert and the contention arbitration.The wireless device listens beacon signal that all are relevant is also prepared corresponding communication separately in view of the above.In addition, lead descending controller circuitry 209 and comprise controller storage 211.Controller storage 211 comprises program code for example environmental assessment and pattern decision unit 213 and the concurrent interference transceiver mode of single and many algorithms adjustment unit 215, they can assist main descending controller circuitry 209 with the decision current channel condition when initialization procedure or periodic evaluation, and assist the mode adjustment of downlink wireless transceiver circuit 231.The main descending controller circuitry 209 of terminal equipment performance information 217 assistance of storage is made the decision to adjusting accordingly based on channel state variations.
Downlink wireless transceiver circuit 231 has concurrent jamming transmitter 233 of single/many algorithms and the concurrent interference receiver 235 of single/many algorithms is to handle physical layer protocol.Detailed description to the concurrent jamming transmitter 233 of single/many algorithms and single/concurrent interference receiver 235 of many algorithms can be respectively with reference to figure 3 and Fig. 4.Downlink wireless transceiver circuit 231 can transmit and receive under all possible pattern, just, single transmitting and receiving, partly or completely the concurrent interference of algorithm-n that transmits and receives under the pattern partly or completely of the concurrent interference of the algorithm under the pattern-1 transmits and receives.Downlink wireless transceiver circuit 231 communicates to connect a plurality of antennas 281, and these antenna can assist to realize utilizing many radio-frequency channels communication.In one embodiment, the software information processing sections in the above-mentioned local storage 261 can be present in the memory of downlink wireless transceiver circuit 231 (not providing) and accelerate to handle to reach.
By uplink transmitter circuit 271, bridgt circuit 273 can allow WAP (wireless access point) 207 to be bridged to backbone network.Comprise that the wired and uplink transmitter 271 wireless, packet-switched interface can be connected to for example ability of internet of backbone network, the circuit 283 that this transceiver 271 is also connected to many antennas 285 and communicates to connect with backbone network for WAP (wireless access point) provides.In some other embodiment, access point circuit 207 of the present invention can comprise than among the figure still less or more parts and still less or more function.In other words, according to the wireless device shown in the figure of the present invention should only be the example and the framework of a possible function.
Fig. 3 is the block diagram 305 of the downstream transmitter part of the WAP (wireless access point) corresponding with Fig. 2.Downlink wireless transceiver 307 comprises concurrent jamming transmitter 309 of single/many algorithms and the concurrent interference receiver 375 of single/many algorithms.The detailed concurrent jamming transmitter 309 of single/many algorithms (downstream transmitter part) that provided among Fig. 3.The concurrent jamming transmitter 309 of single/many algorithms comprises single transfer transmitter circuit 311 and the concurrent jamming transmitter circuit 313 of many algorithms.Single transfer transmitter circuit 311 is traditional transmitter circuitrys, and it can be handled under the single emission mode to the terminal equipment of supporting single emission and to the transmission of supporting the terminal equipment that the concurrent interference of many algorithms is launched.
The concurrent jamming transmitter circuit 313 of many algorithms comprises a plurality of concurrent interference emission treatment circuits for example concurrent interference emission of algorithm-1 treatment circuit 315, the concurrent interference emission of algorithm-2 treatment circuit 317, the concurrent interference emission of algorithm-1 treatment circuit 319 to algorithm-n concurrent interference emission treatment circuits 321.Each of these treatment circuits can both be handled the signal under corresponding algorithm pattern and one of single emission, the concurrent interference emission of a plurality of part and complete concurrent interference emission mode.According to emission mode, which in the concurrent interference emission of algorithm-1 treatment circuit 315, the concurrent interference emission of algorithm-2 treatment circuit 317, the concurrent interference emission of algorithm-3 treatment circuit 319 to the algorithm-n concurrent interference emission treatment circuits 321 main descending controller circuitry 331 (231 among Fig. 2) decision use.Based on the channel status of determining by environmental assessment and pattern decision unit 335, single/a kind of pattern that is used to launch of the concurrent jamming transmitter mode adjustment of many algorithms unit 337 decisions.Single/concurrent jamming transmitter the mode adjustment of many algorithms unit 337 utilizes the terminal equipment performance information 339 of storage to decide the pattern that is used to launch.
In other embodiments, of the present invention single/the concurrent jamming transmitter 309 of many algorithms may comprise than among the figure still less or more function.In other words, only provided the example of the framework of a possible function according to the invention according to the transmitting set shown in the figure of the present invention.
Fig. 4 is the block diagram 405 of the downlink receiver part of the WAP (wireless access point) corresponding with Fig. 2.Downlink wireless transceiver 407 comprises concurrent jamming transmitter 475 of single/many algorithms and the concurrent interference receiver 409 of single/many algorithms.The detailed concurrent interference receiver 409 of single/many algorithms (downlink receiver part) that provided among the figure.The concurrent interference receiver 409 of single/many algorithms comprises single transmission receiver circuit 411 and the concurrent interference receiver circuit 413 of many algorithms.Single transmission receiver circuit 411 is traditional receiver circuits, and it can handle the signal reception that comes from the terminal equipment of supporting single emission and come from the terminal equipment of supporting the concurrent interference emission of many algorithms under single emission mode.
The concurrent interference receiver circuit 413 of many algorithms comprises that for example the concurrent interference receiving processing circuit 415 of algorithm-1, the concurrent interference receiving processing circuit 417 of algorithm-2, the concurrent interference receiving processing circuit 419 of algorithm-3 arrive the concurrent interference receiving processing circuit 421 of algorithm-n to a plurality of concurrent interference treatment circuits.When receiving, each treatment circuit can both be handled the signal under corresponding algorithm pattern and one of single emission, the concurrent interference emission of a plurality of part and complete concurrent interference emission mode.According to emission mode, any in the concurrent interference receiving processing circuit 415 of algorithm-1, the concurrent interference receiving processing circuit 417 of algorithm-2, concurrent interference receiving processing circuit 419 to the algorithm-n concurrent interference receiving processing circuits 421 of algorithm-3 used in main descending controller circuitry 431 (231 among Fig. 2) decision.Based on the channel status of determining by environmental assessment and pattern decision unit 435, single/pattern that 437 decisions of the concurrent jamming transmitter mode adjustment of many algorithms unit are used to launch.Single/concurrent jamming transmitter the mode adjustment of many algorithms unit 437 utilizes the terminal equipment performance function information 439 of storage to decide the pattern that is used to launch.
In other embodiments, this aspect is single/the concurrent interference receiver 409 of many algorithms may comprise than among the figure still less or more function.In other words, only provided the example of the framework of a possible function according to the invention according to the wireless receiver shown in the figure of the present invention.
Fig. 5 is the terminal equipment block diagram 505 that the support many algorithms concurrent interference corresponding with Fig. 1 launched.Wireless terminal device circuit 507 can be represented any wireless terminal device, comprises the transmitting terminal of packet or the reception destination terminal of packet, the wireless terminal device that can also represent the concurrent interference of the many algorithms of support shown in Figure 1 emission for example 143.Wireless terminal device circuit 507 mainly comprises central processing circuit 553, local storage 561, user interface 551, radio transceiver circuitry 509 and communication interface 571.These parts by one or more system buss, dedicated communication path or other directly or the indirect communication path interconnect.
In each embodiment, this central processing unit circuit 553 can be microprocessor, digital signal processor, state machine, application-specific integrated circuit (ASIC), field programmable gate array or other treatment circuit.In addition, in each embodiment, radio transceiver circuitry 509 can comprise a local controller circuit 521, and this controller comprises microcontroller or microprocessor.Prepare to communicate by letter with one of concurrent interference emission mode of many algorithms by choose single emission mode, the concurrent interference emission mode of a plurality of part, complete concurrent interference emission mode in the cycle or in the time cycle of the part of a plurality of frame or frame at any given signal frame, local controller circuit 521 is being managed the controlled function of radio transceiver circuitry 509.Local controller circuit 521 is monitored control signal and is added in the adjusted frame characteristic in beacon period.In beacon period, the controlled function of radio transceiver circuitry 509 is included in and produces radio-frequency performance information in beacon period and send it to WAP (wireless access point), and receives control signal and information extraction and preparation corresponding communication from corresponding WAP (wireless access point).Controller storage 523 the comprises single/concurrent interference transceiver mode of many algorithms adjustment unit 525, it can assist to adjust radio transceiver circuitry 509 to the pattern by relevant WAP (wireless access point) indication.
Radio transceiver circuitry 509 also has been equipped with concurrent jamming transmitter 511 of single/algorithm-1/ algorithm-n and the concurrent interference receiver 513 of single/algorithm-1/ algorithm-n.Described transmitter 511 and receiver 513 can possess multiple algorithm ability, so that they can be worked under algorithm-1 in algorithm-n 2 kinds or multiple algorithm pattern.Radio transceiver circuitry 509 can be carried out the concurrent interference of single and many algorithms and transmit and receive both.The a plurality of antennas 557 that communicate to connect radio transceiver circuitry 509 can be realized transmitting and receiving according to the mode of one of a plurality of emission modes.The function of concurrent jamming transmitter 511 of single/algorithm-1/ algorithm-n and the concurrent interference receiver 513 of single/algorithm-1/ algorithm-n and structure are similar to downstream transmitter and the receiver section with reference to the WAP (wireless access point) described in figure 3 and Fig. 4 respectively.
Local storage 561 can be random asccess memory, read-only memory, flash memory, disc driver, CD-ROM driver or other type stores of energy storage computation machine instruction and data.Local storage 561 comprises the concurrent interference emission of device operating system and application software 565 and single/algorithm-1/ algorithm-n and detects and process software 563.Communication interface 571 allows wireless terminal device 507 to be connected with radio transceiver circuitry 509.
In other embodiments, wireless terminal device 507 of the present invention may comprise than among the figure still less or more function.In other words, only provided the example of the framework of a possible function according to the invention according to the wireless device shown in the figure of the present invention.
Fig. 6 has provided the typical sequential chart 605 of the concurrent interference emission mode of many algorithms in no contention and contention.As shown in the figure, frame A comprises beacon period, single no contention emission cycle 611 and single contention emission cycle 613.Frame A can adjust by the mode that changes single emission mode 611 and 613 (with reference to frame A as shown in the figure).Similarly, frame B comprises that beacon period, one utilize the concurrent interference of many algorithms of algorithm-1 code not have contention emission cycle 621 and the concurrent interference contention 623 of many algorithms.Frame B can adjust by the mode that changes the concurrent interference emission mode 621 of algorithm-1 and 623 (with reference to frame B as shown in the figure) time span.In addition, frame C as shown in the figure comprises beacon period, another utilizes the concurrent interference of many algorithms of algorithm-n code not have contention emission cycle 631 and the concurrent interference contention 633 of multiple algorithm.Frame C can adjust by the mode that changes the concurrent interference emission mode 631 of many algorithms and 633 (with reference to frame C as shown in the figure) time span.Loaded length also can change according to channel status.Frame A, B as shown in the figure and C be corresponding to the mode of full frame, wherein, and no contention and contention and without separating into subframe.In subframe mode (not providing among the figure), contention and no contention all are divided into a plurality of subframes, and each subframe adjustment is adapted to a kind of in the concurrent interference emission mode of single and many algorithms.
Channel status is by the quantity of relevant wireless terminal device in the sub-district, their performance, preassignment utilized bandwidth, QOS demand (service quality), service priority and Idle state, the overlapping interference in sub-district, far and near disturb and noise is determined.Under single emission mode, no contention time 611 and contention time 613 are according to channel status and respective change, with the performance of optimization WAP (wireless access point).Similarly, in one of concurrent interference emission mode of many algorithms that uses algorithm-1 or algorithm-n, the no contention time 621 or 631 and the contention time 623 or 633 according to channel status and respective change.
Many algorithm patterns in no contention and contention are made decision to the beacon signal of the access of WAP (wireless access point), send to the terminal equipment of supporting the concurrent interference emission of many algorithms in beacon period.Beacon signal is being controlled the each side of terminal equipment, comprises that specifically emission mode, no contention insert and the contention arbitration.The wireless terminal device respond beacon signal that all are relevant is also prepared their corresponding communication separately in view of the above.
Fig. 7 has provided the typical sequential chart 705 of the concurrent interference emission mode of many algorithms part and complete concurrent interference emission mode in no contention and contention.Frame A comprises beacon period, the concurrent interference of part of-1 (with reference to frame A as shown in the figure) does not have contention emission cycle 711 and the concurrent interference contention 713 of part to utilize algorithm.Similarly, frame B comprises beacon period, utilizes algorithm-n that the concurrent interference of part of (with reference to frame B as shown in the figure) do not have contention emission cycle 721 and the concurrent interference contention 723 of part.Frame A or frame B can adjust by the mode that changes the concurrent interference emission mode 7 11 of part or 721 and 713 or 723.Based on the quantity of selecting to be used for wireless terminal in communication equipment image duration, the concurrent interference emission mode of part can change, and for example, from a to n, frame A among the figure and B have provided the concurrent jamming pattern n of part.Frame C comprises a beacon period, follows a complete concurrent interference emission cycle 731 of utilizing algorithm-n (with reference to frame C as shown in the figure) thereafter.Loaded length also can change according to channel status.The mode that frame A, B as shown in the figure and C adjust corresponding to full frame does not wherein have contention and contention and without separating into subframe.In subframe adjustment mode (not providing among the figure), contention and no contention all are divided into a plurality of subframes, utilize algorithm pattern a to one of n, and that each subframe adjustment is adapted to is single, a kind of partly and in the complete concurrent jamming pattern.
Channel status is by the quantity of relevant wireless terminal device in the sub-district, their performance, preassignment utilized bandwidth, QOS demand (service quality), service priority and Idle state, the overlapping interference in sub-district, far and near disturb and noise is determined.Under the concurrent interference emission mode of part n, the no contention time 711 or 721 and the contention time 713 or 723 according to channel status and respective change.The wireless terminal device that the concurrent interference emission mode of part allows to limit quantity is launched simultaneously or is received data, and this will occur in channel in the no contention and be in emission or receive under the situation of free time and carry out in the contention under the situation of contention and arbitration.Under the situation of complete concurrent interference emission mode, emission changes according to this channel status cycle time 731.Under the situation of complete concurrent interference emission mode, to transmitting and receiving of wireless terminal device without any restriction.
Various modes is made decision to the beacon signal of the access of WAP (wireless access point) in no contention and contention, is transmitted into the equipment of supporting the concurrent interference emission of single/many algorithms in beacon period.Access module comprises single emission mode, the concurrent interference emission mode of part a to n and complete concurrent interference emission mode, uses a kind of in the n of algorithm pattern a.Under any pattern, provide the decision of access and performance that access period depends on wireless terminal device and WAP (wireless access point) performance to consider.
Fig. 8 has provided according to the WAP (wireless access point) of the embodiment of the invention and has been used for the coded system that concurrent interference transmits and receives and the general utility functions flow chart 805 of frame parameter based on the channel status adjustment that changes.The function of WAP (wireless access point) starts from step 813, and wherein said WAP (wireless access point) is by carrying out initial assessment and by setting up and the communicating by letter to begin initialization of terminal equipment to the sub-district.In the periodic evaluation process, in step 813, WAP (wireless access point) can only be assessed the wireless terminal device that is adapted to just enter in this sub-district.Described initial assessment comprises that the identification trial is linked into the quantity of the wireless terminal device of backbone network.In addition, WAP (wireless access point) is inquired about each wireless terminal device to understand performance (under the situation of periodic evaluation, only inquiry newly enters into the wireless device in the sub-district), quality of service requirement, the use of preassignment bandwidth and Idle state.As the part of initial assessment, WAP (wireless access point) is also discerned any noise and the interference that occurs in the sub-district.The performance of a plurality of wireless terminal devices can comprise and singlely transmits and receives performance and the concurrent interference of many algorithms transmits and receives performance, or the two all possesses.
At next procedure 815, WAP (wireless access point) identification channel state.Based on above-mentioned initial or periodic evaluation, the identification of channel status can comprise and reach one or more digital indicator that these indicating devices can be advised a kind of emission mode that is used for optimal performance.Emission mode comprises a kind of in n and the complete concurrent interference emission mode of single emission mode, the concurrent interference emission mode of part a, use algorithm pattern a to n one of them.
At next procedure 817, WAP (wireless access point) determines a kind of emission mode in algorithm 1 to n concurrent interference emission mode.What this model selection will be considered is channel status.Then, at next procedure 819, WAP (wireless access point) determines a kind of emission mode in single emission mode, the concurrent interference emission mode of a plurality of part (that is, the concurrent interference emission mode of part a is to n) and complete concurrent interference emission mode.The consideration of adjusting comprises that also loaded length changes.For transmitting and receiving, the consideration of adjustment is different, because the load condition of WAP (wireless access point) is an independent variation when transmitting and receiving.
Then, at next procedure 821, WAP (wireless access point) is broadcasted the model selection of the next frame, next group subframe or next framing that are adapted in the wireless network architecture in beacon period.At next procedure 823, WAP (wireless access point) provides route service for wireless terminal device under selected pattern.
Fig. 9 has provided according to WAP (wireless access point) of the present invention and has been used for the coded system that concurrent interference transmits and receives and the detailed functions flow chart 905 of frame parameter based on the channel status adjustment that changes.The function of WAP (wireless access point) starts from step 911, and wherein WAP (wireless access point) is carried out initialization by the initial assessment to the sub-district.This initialization assessment comprises the quantity of the relevant wireless terminal device of identification, and each of inquiring about these a plurality of wireless terminal devices is used and Idle state to understand its performance, quality of service requirement, preassignment bandwidth.In addition, noise and the interference in the WAP (wireless access point) identification sub-district.The performance of these a plurality of wireless terminal devices comprises and singlely transmits and receives performance and the concurrent interference of many algorithms transmits and receives performance.
At next procedure 913, WAP (wireless access point) established a communications link in beacon period and wireless terminal device.In the periodic evaluation process, access point can be attempted establishing a communications link with the wireless terminal device that newly enters the sub-district.At next procedure 915, equipment performance, bandwidth demand, QOS demand and the service priority of the wireless terminal device that WAP (wireless access point) identification newly enters.Described performance comprise singlely transmit and receive performance, concurrent interference transmits and receives and many algorithm performances.In addition, in step 915, interference and noise in the WAP (wireless access point) detected cells.
At next procedure 921, WAP (wireless access point) is utilized a kind of many algorithm pattern to carry out to calculate determining a kind of pattern that optimal performance can be provided, and selects this pattern to communicate.In conjunction with periodic evaluation, WAP (wireless access point) can also utilize trigger condition to select a kind of communication pattern.This trigger condition can be a kind of new noise or interference, a plurality of new wireless terminal device that perhaps enters.This pattern is expressed as the incident step in the drawings, for example the concurrent interference emission mode 931 of algorithm-1, the concurrent interference emission mode 933 of algorithm-2, algorithm-3 concurrent interference emission mode a935 and the concurrent interference emission mode 937 of algorithm-n.Based on existing selectable algorithmic code, in the practice, algorithm 1 to n concurrent interference emission mode may be to the wider scope of n than a shown in the figure.
At next procedure 941, WAP (wireless access point) can determine a kind ofly the pattern of optimal performance can be provided and select this pattern communication.The pattern here comprises single emission mode, the concurrent interference emission mode of part a to one of n and complete concurrent interference emission mode, utilizes above-mentioned algorithm pattern to select.In conjunction with periodic evaluation, WAP (wireless access point) can also utilize trigger condition to select a kind of communication pattern, for example noise or interference, the perhaps new wireless terminal device of one or more that enters suddenly.These patterns are expressed as the incident step in the drawings, for example single emission mode 951, the concurrent interference emission mode of part a953, part concurrent interference emission mode n955 and complete concurrent interference emission mode 957.Based on the quantity of the WAP (wireless access point) of selecting to be used for concurrent interference emission, in the practice, the concurrent interference emission mode of part a may be to the wider scope of n than a shown in the figure to n.
In case selected a kind of pattern, at next procedure 961, WAP (wireless access point) is by broadcasting this information to notify this pattern to wireless terminal device.From the angle of WAP (wireless access point), consider to transmit and receive the possibility difference, therefore also need to notify wireless terminal device.At next procedure 963, WAP (wireless access point) provides route service for wireless terminal device under selected pattern.
The phrase that uses among the application " circuit " and " Circuits System " can be an independent circuit or a part of carrying out the multifunctional circuit of a plurality of basic functions.For example, based on embodiment, treatment circuit can be realized with single-chip processor or a plurality of processor chips.Similarly, among the embodiment, first circuit and second circuit can be combined to form a circuit or, in another embodiment, perhaps independently independently operating on the chip.The phrase that uses among the application " chip " refers to integrated circuit." circuit " and " Circuits System " can comprise the hardware of general or special-purpose, perhaps can comprise such hardware and relevant software for example firmware or object code.
Those of ordinary skills as can be known, among the application employed phrase " communicate to connect " comprise wired and wireless, directly be connected and be connected by the indirect of other assembly, element or module.Those of ordinary skills infer connection (promptly inferring parts connects with another parts) and comprise wireless with wired, direct with indirect being connected identical with " communicating to connect " mode between two parts also as can be known.
The present invention is by having showed specific function of the present invention and relation thereof by method step.The scope of described method step and order are to define arbitrarily for convenience of description.As long as can carry out specific function and order, also can use other boundary and order.Therefore any boundary or order described or choosing fall into scope and spirit essence of the present invention.
The present invention also is described some important function by functional module.The boundary of described functional module and the relation of various functional modules are to define arbitrarily for convenience of description.As long as can carry out specific function, also can use other boundary or relation.Therefore described other boundary or relation also falls into scope and spirit essence of the present invention.
Those of ordinary skills also as can be known, the functional module among the application and other displaying property module and assembly can be embodied as the processor and the aforesaid combination in any of discrete component, application-specific integrated circuit (ASIC), the appropriate software of execution.
In addition, although more than be the description of the present invention being carried out by some embodiment, those skilled in the art know that the present invention is not limited to these embodiment, under the situation that does not break away from the spirit and scope of the present invention, can carry out various changes or equivalence replacement to these features and embodiment.Protection scope of the present invention is only limited by claims of the application.
Claims (10)
1. access point circuit of supporting to receive the concurrent interference transmission that comes from a plurality of terminal equipments is characterized in that described access point circuit comprises:
Reception comes from the receiver circuit of the concurrent interference transmission of a plurality of terminal equipments, and described concurrent interference transmission is to use first coded system to make up;
Communicate to connect treatment circuit, the described concurrent interference transmission of decoding in described receiver circuit;
Communicate to connect transmitter circuitry in described treatment circuit;
Described treatment circuit produces in order to first coded system is made into the instruction of second coded system based on the variation of channel status;
Described treatment circuit is sent in a plurality of terminal equipments at least one to described instruction by transmitter circuitry;
Described receiver circuit receives the concurrent interference transmission of using described second coded system to make up;
The concurrent interference transmission that use second coded system that described processor circuit decoding receives makes up.
2. access point circuit according to claim 1 is characterized in that, described treatment circuit transmits described instruction when a frame begins.
3. access point circuit according to claim 2 is characterized in that described frame comprises one or more subframe.
4. access point circuit according to claim 2 is characterized in that described instruction is applicable to one of them subframe.
5. access point circuit according to claim 1 is characterized in that, described first coded system comprises the first concurrent interference emission mode.
6. terminal device circuitry of supporting that concurrent interference receives is characterized in that described terminal device circuitry comprises:
Receive the receiver circuit of concurrent interference transmission;
Communicate to connect treatment circuit, detect described concurrent interference transmission in described receiver circuit;
Described treatment circuit receives in order to first coded system is made into the instruction of second coded system;
Described treatment circuit is adjusted to described second coded system to respond described instruction;
Described treatment circuit detects the data of the concurrent interference transmission that comes from use second coded system that receives.
7. terminal device circuitry according to claim 6 is characterized in that, described first coded system comprises the first concurrent interference emission mode.
One kind in wireless network architecture by transmitting the performed method of access point of a plurality of packets with a plurality of terminal equipments, it is characterized in that described method comprises:
Establish a communications link with each terminal equipment in described a plurality of terminal equipments;
The identification channel state;
Determine emission mode based on coded system and frame parameter;
Broadcast described emission mode; With
Utilize described emission mode to communicate by letter with described a plurality of terminal equipments.
9. method according to claim 8 is characterized in that, described emission mode comprises at least one in one of one or more coded system pattern of single emission mode, complete concurrent interference emission mode, the concurrent interference emission mode of a plurality of part.
10. method according to claim 8 is characterized in that, a plurality of terminal equipments of the selected quantity of each pattern permission in the concurrent interference emission mode of described a plurality of parts are launched concomitantly or received.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/595,346 | 2006-11-09 | ||
| US11/641,144 | 2006-12-18 | ||
| US11/641,144 US20080112342A1 (en) | 2006-11-09 | 2006-12-18 | Cell supporting simultaneous and differing concurrent interfering transmission parameters and techniques |
Publications (1)
| Publication Number | Publication Date |
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| CN101207458A true CN101207458A (en) | 2008-06-25 |
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|---|---|---|---|
| CNA2007101694490A Pending CN101207458A (en) | 2006-11-09 | 2007-11-08 | Cell supporting simultaneous and differing concurrent interfering transmission parameters and techniques |
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| CN (1) | CN101207458A (en) |
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- 2007-11-08 CN CNA2007101694490A patent/CN101207458A/en active Pending
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