CN101084605A - Measurement support for a smart antenna in a wireless communication system - Google Patents
Measurement support for a smart antenna in a wireless communication system Download PDFInfo
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- CN101084605A CN101084605A CN 200580030246 CN200580030246A CN101084605A CN 101084605 A CN101084605 A CN 101084605A CN 200580030246 CN200580030246 CN 200580030246 CN 200580030246 A CN200580030246 A CN 200580030246A CN 101084605 A CN101084605 A CN 101084605A
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Abstract
A method for taking measurements with a smart antenna in a wireless communication system having a plurality of STAs begins by sending a measurement request from a first STA to a second STA. At least two measurement packets are transmitted consecutively from the second STA to the first STA. Each measurement packet is received at the first STA using a different antenna beam. The first STA performs measurements on each measurement packet and selects an antenna beam direction based on the measurement results.
Description
Technical field
The invention relates to a kind of wireless communication system, the present invention utilizes the effectively apparatus and method of measurement of smart antenna especially about in this wireless communication system.
Background technology
In WLAN (WLAN), access point (AP) and platform (STA) but equipped with smart antenna, for instance, multiple wave beam/directional antenna system.AP and STA all need to carry out measurement transferred to or be received from another STA with decision optimum beam, and the STAs with a plurality of wave beams carries out to scan on different wave beams, are their best wave beams of service so which is estimated.By AP and/or performed the scanning of STAs, can use illusory grouping, packet, 802.11 affirmations (ACK) or broadcast packe to carry out, measure then must upgrade continually and just can.
On AP, the wave beam handoff algorithms uses and carries out antenna measurement from the grouping of STA, and best wave beam (based on the grouping mea-sure that is received, for example, a received power or Signal to Interference plus Noise Ratio (SINR)) then just with transmitting grouping to this STA.On STA, existing wave beam handoff algorithms can use packet or beacon, to determine correct reception and transmit antenna/wave beam of this AP.This kind antenna measurement mode is not very efficient, and this is to be time-consuming very because will obtain enough measurements with the correct wave beam that determines each STA.
Another problem of this kind beam selection method is that to receiving and transmitting both beam selection aspects, it is based on the measurement that butt joint contracture group is done.Yet in fact, the optimum beam of transmission may not can and the optimum beam identical (especially aspect the frequency division duplex system) that receives.
Summary of the invention
A kind of method of measuring with smart antenna in wireless communication system, this wireless communication system has several STAs.At first send the request of measurement to the 2nd STA by a STA, at least two are measured grouping is to transfer to a STA by the 2nd STA.Each measures grouping is to use different antenna beams to receive on a STA.The one STA should measure to carry out in the grouping whenever and measure, and selected antenna beam direction according to measurement result.
A kind of method of measuring with smart antenna in wireless communication system, this wireless communication system has several STAs.At first send the request of measurement to the 2nd STA by a STA, at least two are measured grouping is to transfer to a STA by the 2nd STA.Each measures grouping is to use different antenna beam transmission on a STA.The 2nd STA receives whenever should to measure grouping and should measure to carry out in the grouping whenever and measures.The 2nd STA produces measurement report according to this measurement result, and sends this measurement report to a STA.The one STA selects to select an antenna beam direction according to this measurement report.
A kind of system of measuring with smart antenna in wireless communication system, it comprises a STA and one the 2nd STA.The one STA comprises first transmitter/receiver; First antenna, it is to be connected to this first transmitter/receiver; Measure the grouping request unit, it is to be connected to this first transmitter/receiver; Measure packet analysis device, it is to be connected to this first transmitter/receiver; And the wave beam modifier, it is to be connected to this first transmitter/receiver and this measurement packet analysis device.The 2nd STA comprises second transmitter/receiver; Second antenna, it is to be connected to this second transmitter/receiver; Measure grouping request receiving system, it is to be connected to this second transmitter/receiver; And the measurement packet transfer device, it is to be connected to this second transmitter/receiver and this measurement grouping request receiving system.
A kind of system of measuring with smart antenna in wireless communication system, it comprises a STA and one the 2nd STA.The one STA comprises first transmitter/receiver; First antenna, it is to be connected to this first transmitter/receiver; Measure the grouping request unit, it is to be connected to this first transmitter/receiver; Measure packet transfer device, it is to be connected to this first transmitter and this measurement grouping request unit; The wave beam modifier, it is to be connected to this first transmitter/receiver and this measurement packet transfer device; And measurement report analysis device, it is to be connected to this first transmitter/receiver and this wave beam modifier.The 2nd STA comprises second transmitter/receiver; Second antenna, it is to be connected to this second transmitter/receiver; Measure grouping request receiving system, it is to be connected to this second transmitter/receiver; And the measurement report generation device, it is to be connected to this second transmitter/receiver and this measurement packet analysis device.
Description of drawings
By the description of hereinafter preferred embodiment, the example that is given, with reference to corresponding graphic, the present invention can obtain to understand in more detail, wherein:
Figure 1 shows that the measurement request packet schematic diagram;
Figure 2 shows that and measure the grouping schematic diagram;
Figure 3 shows that the measurement report packet schematic diagram;
Figure 4 shows that the method flow diagram of carrying out antenna measurement;
Figure 5 shows that the signal schematic representation of method shown in Figure 4;
Figure 6 shows that second method flow diagram of carrying out antenna measurement;
Figure 7 shows that the signal schematic representation of method shown in Figure 6;
Figure 8 shows that physical layer integration protocol (PLCP) frame format schematic diagram; And
Figure 9 shows that according to Fig. 4 and method shown in Figure 6, be used for the system schematic of communication measurement information.
Embodiment
After this, proprietary term " platform (STA) ", it comprises but is not limited to, wireless transmission/receive unit, subscriber equipment, fixing or moving user unit, calling set or any type of device that can operate under wireless environment.When after this this paper mention proprietary term " access point (AP) ", it comprises but is not limited to, platform, Node B, platform controller or any type of interface arrangement under wireless environment.
The present invention not only solves the problem of the measurement support of smart antenna, and can implement in AP, non-AP STA or both.The invention provides a kind of signal transmitter system, measure, also provide and correctly upgrade the mechanism of measuring that receives between scanning with received signal strength indicator (RSSI) or the SINR that obtains between two platforms each transmission or reception antenna.
The present invention uses a kind of action action frame in order to antenna measurement, produces a kind of kind of new action action frame by this, and it is to be called " antenna measurement ".The kind of this action action frame comprises a measurement request packet, measures the action field of responding grouping and illusory measurement grouping, and action action frame is defined in (that is 802.11k, 802.11e) in the wlan standard at present.Measurement grouping of the present invention also can be the part of separating controlling grouping or management grouping.
Figure 1 shows that according to a measurement request packet 100 of the present invention this measurement request packet 100 comprises transmission or receives the fields such as quantity, antenna information 104, request form 106 and measurement report request 108 of grouping 102.The quantity of transmission or reception grouping 102 is that basis is selected antenna as decline environment and the parameter of time, and in one embodiment, a preferred values is 10 groupings of line every day.This antenna information 104 comprise antenna beam identification or any other can be in order to discern the information of an antenna or one group of antenna.Two possible request forms 106 will be in hereinafter explaining with reference to Fig. 4 and Fig. 6, yet, it should be noted that a lot of possible modes are sent in measurement indicated in the request form field 106 and obtain response.Measurement report request field 108 comprises SNR measurement parameter and RSS measurement parameter.
Figure 2 shows that according to measurement grouping 200 of the present invention, this measurement grouping 200 comprises antenna identifying information 202 and existing packet sequence number 204.This antenna identifying information 202 comprise antenna beam identification or any can be in order to discern the information of an antenna or one group of antenna.
Figure 3 shows that according to measurement report packet 300 of the present invention this measurement report packet 300 comprises sequence information 302 (sequence number of this grouping), aerial information 304 (that is antenna identifying information), measure R SSI value 306 and measures SNR value 308.
Measure request and respond and to begin by STA or AP, measurement request packet 100 and transmission whenever that measure to respond that grouping 300 can be when this STA links to each other with this AP, this STA can be allowed to use these technology, to measure from each antenna before being linked to this AP or to be sent to the signal of each antenna.
Figure 4 shows that it is according to the first embodiment of the present invention in order to measure method 400 flow charts of packet switching between two STAs STA1 and STA2.This method 400 is to send measurement request packet with STA1 to begin to STA2 (step 402).STA2 receives this measurement request packet (step 404) and sends ACK to STA1 (step 406).STA2 follows transmission measurement and divides into groups to STA1 (step 408).STA1 receives this measurement grouping and measures the RSSI and/or the SNR (step 410) of this measurement grouping.If all specified in measurement request packet groupings are transmitted all, then can make decision.
If all groupings are not transmitted as yet, then STA1 can change its received beam (step 414).STA2 (step 408) before the next grouping of transmission can wait for the interframe space (SIFS) (step 416) of a weak point.In a preferred embodiment, STA2 can wait for SIFS, yet the stand-by period is variable, and can be greater or less than this SIFS.The variation of stand-by period is that the particular implementation of the accuracy of the time span required with the switched antenna wave beam, system lock and any other and time correlation is relevant.If all groupings have been transmitted (step 412), then this STA1 can select this transmission beam (step 418) according to all measure R SSI and/or SNR value, and this method stops (step 420) subsequently.
Figure 5 shows that the signal schematic representation of method 400, show the packet switching between STA1 502 and STA2 504.STA1502 sends a measurement request packet 506 to STA2 504.STA2504 can wait for SIFS 508 sending an ACK 510 with before responding measurement request packet 506.STA2 504 then sends a plurality of measurement groupings 512 continuously
1... 512
n, each measures grouping 512 is by SIFS 514 separately.At this SIFS therebetween, STA1502 changes its received beam, makes each divide into groups 512
1... 512
nBe on different wave beams, to receive.STA1502 then uses the received signal intensity of each grouping 502 to select correct wave beam.
Figure 6 shows that it is according to a second embodiment of the present invention in order to measure method 600 flow charts of packet switching between two STAs STA1 and STA2.This method 600 is to begin to STA2 (step 602) to send measurement request packet.STA2 receives this measurement request packet (step 604) and sends ACK to STA1 (step 606).STA1 sends the request of measuring (step 608) from wave beam.STA2 receives this measurement grouping and measures the RSSI and/or the SNR (step 610) of this grouping.No matter all whether transmits all can make decision (step 612) by the specified measurement grouping of measurement request packet.If all measurements grouping is not transmitted as yet, then this STA1 changes this transmission beam (step 614), waits for SIFS (step 616), and sends grouping (step 608) by new wave beam.In a preferred embodiment, STA2 can wait for SIFS, yet the stand-by period is variable, and can be greater or less than this SIFS.The variation of stand-by period is that the particular implementation of the accuracy of the time span required with the switched antenna wave beam, system lock and any other and time correlation is relevant.
If all groupings have been transmitted (step 612), then STA2 can produce measurement report (step 620) according to the measurement grouping of all receptions.STA2 sends this measurement report and to STA1 (step 622) and STA1 this measurement report is sent ACK to STA2 (step 624).STA1 selects transmission beam (step 626) according to this measurement report, and this method stops (step 628) subsequently.
Figure 7 shows that the signal schematic representation of method 600, show the packet switching between STA1 702 and STA2 704.STA1 702 sends measurement request packet 706 to STA2 704.STA2704 can wait for SIFS 708 at transmission ACK 710 before in response to this measurement request packet 706.STA1 702 can wait for SIFS 712 sent measurement grouping 7141...714-n to STA2 704 by wave beam before.Each measures grouping 714 is to be sent by different wave beams, and the measurement grouping 714 that STA1 702 is sent on another wave beam can be waited for SIFS 716 before.STA2 704 receives this measurement grouping 714 and measures whenever should grouping.After all measurement groupings were received by STA2 704, STA2 704 can produce measurement report packet 718, and sends it to STA1 702.STA1 702 then after the reception of this measurement report packet 718, sends ACK to STA2 704 immediately.STA1702 then selects beam direction according to this measurement report packet 718.
Measuring request and report information can be equipped in packet, management grouping or the control grouping.Physical layer signal sends and can send in different wave beams, this signal sends to be sent out and makes it see through identical physical layer signal (for example preorder) or wave beam information is discerned different wave beams, and these measuring-signals can be sent (and need not wait for SIFS) in grouping.
But the present invention also passive measurement may change along with switching-beam or different technology from the received signal intensity of transmitter to some extent upgrading this received signal intensity.Lacking anyly about the transmitter node under the employed antenna notice, receiver may finally can be made incorrect decision to receiving (or transmission) on correct wave beam.The transmission grouping comprises wave beam identification or diverse ways indication, and this information can be used so that upgrade this reception metrical information by receiver.
Antenna information sends after physical layer is joined agreement (PLCP) gauge outfit or in medium access control (MAC) gauge outfit immediately.This information can be predefined signal mode, and with indication omni-directional antenna beam or antenna beam identification, this pattern also can be in order to indicate different technology (if any).
Fig. 8 is PLCP frame format 800 schematic diagrames according to the present invention.PLCP frame 800 comprises preorder 802, signal field 804, gauge outfit error checking (HEC) 806 and physical layer service data (PSDU) 810.The present invention increases a new field to PLCP frame 800, i.e. transmission antenna identification 808.Can keep downward compatibility by after the PLCP gauge outfit, increasing antenna information, in the MAC gauge outfit, also can increase an extra information field, with the identification of indication transmit antenna.
The invention provides an effective method with measure to/from the signal strength signal intensity of wave beam or directional antenna.The method of 802.11 existing standards and undefined antenna measurement, the use of illusory grouping or beacon is very inefficent and lose time, and, its restriction directional antenna use in decline environment and roaming.The present invention allows STA to use different wave beams to transmit and receives.
Figure 9 shows that system's 900 schematic diagrames that are configured to propagate metrical information, it is respectively with reference to the method 400 and 600 of Fig. 4 and Fig. 6 according to above-mentioned.This system 900 comprises a STA (STA1) 902 and the 2nd STA (STA2) 904.The STAs of two separation shown in the system 900 is to be purpose with the discussion, and each STA can the assembly construction shown in all.
The one STA 902 comprises measurement grouping request unit 910, and it is connected to transmitter/receiver 912, and it is connected to antenna 914.Measure packet transfer device 916 and be connected to this measurement grouping request unit 910 and this transmitter/receiver 912.Measure packet analysis device 918 and be connected to this transmitter/receiver 912.Wave beam modifier 920 is connected to this transmitter/receiver 912, this measurement packet transfer device 916 and this measurement packet analysis device 918.Measurement report analysis device 922 is connected to this transmitter/receiver 912 and this wave beam modifier 920.
The 2nd STA 904 comprises antenna 930, and it is connected to transmitter/receiver 932.Measure grouping request receiving system 934 and be connected to this transmitter/receiver 932.Measure packet transfer device 936 and be connected to this transmitter/receiver 932 and this measurement grouping request receiving system 934.Measure packet analysis device 938 and be connected to this transmitter/receiver 932.Measurement report generation device 940 is connected to this transmitter/receiver 932 and this measurement packet analysis device 938.
When this method 400 of enforcement, this system 900 is configured to following running.This is measured grouping request unit 910 and produces measurement grouping request, and it is sent to transmitter/receiver 912 to transfer to the 2nd STA 904.This transmitter/receiver 932 receives this and measures the grouping request, and it is transferred to this measurement grouping request receiving system 934.This is measured grouping request receiving system 934 and produces ACK, and it is sent to a STA 902.
After sending this ACK, this measurement grouping request receiving system 934 sends a signal to this measurement packet transfer device 936, measures grouping to a STA 902 so that begin to send.Divide into groups when a STA 902 receives when measurement, this transmitter/receiver 912 passes on this measurement grouping to this measurement packet analysis device 918, measures the measurement of the RSSI and/or the SNR of grouping at this place.If the measurement of all requests grouping is not received as yet,, divide into groups to receive extra measurement with the received beam that changes a STA 902 just this measurement packet analysis device 918 sends a signal to wave beam modifier 920.
If there are all requested measurement packets to be received, select suitable transmission beam just this measures packet analysis device according to previous measured value, and then send this wave beam modifier 920 of a selected transmission beam.
When this method 600 of enforcement, this system 900 is configured to following running.This is measured grouping request unit 910 and produces measurement grouping request, and it is to be sent to this transmitter/receiver 912 to transfer to the 2nd STA 904.This transmitter/receiver 932 receives this and measures the grouping request, and it is transferred to this measurement grouping request receiving system 934.This is measured grouping request receiving system 934 and produces ACK, and it is to be sent to a STA 902.
After receiving ACK, this measurement grouping request unit 910 sends a signal to this measurement packet transfer device 916 immediately, so that the grouping of beginning transmission measurement is to the 2nd STA 904.After measuring the branch group of received, this transmitter/receiver 932 passes on this measurement grouping to this measurement packet analysis device 938, and measures this grouping at this place.If all requested measurement packets are not transmitted, just this measurement packet transfer device 916 sends a signal to this wave beam modifier 918, so that before sending next measurement grouping, change this transmission beam.
If all requested measurement packets are all transmitted, just then this measurement report generation device 940 produces measurement report, it is sent to a STA 902.This measurement report is transferred to this measurement report analysis device 922, and it is that a STA 902 selects transmission beam according to this measurement report.This measurement report analysis device 922 should be sent to this wave beam modifier 920 by selected wave beam, so that change the transmission beam of a STA 902.
Embodiment
1. carry out the method for measuring with smart antenna for one kind in having the wireless communication system of several STAs, its step is to comprise: send one by a STA and measure request to the 2nd STA; Transmit at least two continuously or side by side by the 2nd STA and measure grouping to a STA; On a STA, use a different antennae wave beam to receive whenever and should measure grouping; On a STA, carried out measurement to whenever measuring grouping; And on a STA, select an antenna beam direction according to this measurement result.
2. as embodiment 1 described method, wherein this measurement request comprises the defeated measurement grouping of several tendencies to develop.
3. as the described method of previous arbitrary embodiment, wherein this transmitting step comprises: wait for the interframe space between between the transmission measurement grouping.
4. as embodiment 3 described methods, wherein this interframe space be for a short interframe space (SIFS), less than a SIFS, and surpass a SIFS one of them.
5. as the described method of previous arbitrary embodiment, wherein this execution in step comprises: measure the received signal strength indicator (RSSI) of this measurement grouping whenever.
6. as embodiment 5 described methods, wherein this selection step comprises: the RSSI value according to this measurement is selected the transmission beam direction.
7. as arbitrary described method among the previous embodiment 1-4, wherein this execution in step comprises: measure the signal noise ratio (SNR) of this measurement grouping whenever.
8. as embodiment 7 described methods, wherein this selection step comprises: the SNR value according to this measurement is selected a transmission beam direction.
9. as arbitrary described method among the previous embodiment 1-4, wherein this execution in step comprises: received signal strength indicator (RSSI) and the signal noise ratio (SNR) of measuring this measurement grouping whenever.
10. as embodiment 9 described methods, wherein select the transmission beam direction according to the RSSI value and the SNR value of this measurement.
11. as the described method of previous arbitrary embodiment, its step more comprises: after this measurement request, send affirmation immediately to a STA by the 2nd STA.
12. as the described method of previous arbitrary embodiment, its step more comprises: after receiving the measurement grouping, this received beam of this antenna of change on a STA becomes different wave beams, and by this, this antenna on a STA uses different wave beams to receive the next grouping of measuring.
13. carry out the method for measuring with smart antenna for one kind in having the wireless communication system of several STAs, its step is to comprise: send the request of measurement to the 2nd STA by a STA; Transmit at least two continuously or side by side by a STA and measure grouping to the 2nd STA, this transmission grouping whenever is to use the transmission of different antennae wave beam; On the 2nd STA, receive whenever and should measure grouping; On the 2nd STA, carried out measurement to whenever measuring grouping; On the 2nd STA, produce measurement report according to this measurement result; Send this measurement report to a STA by the 2nd STA; And on a STA, select an antenna beam direction according to this measurement report.
14. as embodiment 13 described methods, wherein this measurement request comprises the defeated measurement grouping of several tendencies to develop.
15. as the described method of previous arbitrary embodiment, wherein this transmitting step comprises: wait for the interframe space between between the transmission measurement grouping.
16. as embodiment 15 described methods, wherein this interframe space be for short interframe space (SIFS), less than a SIFS, and surpass a SIFS one of them.
17. as the described method of previous arbitrary embodiment, its step more comprises: after this measurement request, send affirmation immediately to a STA by the 2nd STA.
18. as the described method of previous arbitrary embodiment, its step more comprises: after receiving a measurement grouping, this received beam of this antenna of change on a STA becomes different wave beams, and by this, this antenna on a STA uses a different beams to receive the next grouping of measuring.
19. as the described method of previous arbitrary embodiment, its step more comprises: after this measurement request, send affirmation immediately to the 2nd STA by a STA.
20. a system of measuring with smart antenna in wireless communication system, it comprises a STA and one the 2nd STA.The one STA comprises first transmitter/receiver; First antenna, it is connected to this first transmitter/receiver; Measure the grouping request unit, it is connected to this first transmitter/receiver; Measure packet analysis device, it is connected to this first transmitter/receiver; And the wave beam modifier, it is connected to this first transmitter/receiver and this measurement packet analysis device.The 2nd STA comprises second transmitter/receiver; Second antenna, it is connected to this second transmitter/receiver; And the measurement packet transfer device, it is connected to this second transmitter/receiver and this measurement grouping request receiving system.
21. as embodiment 20 described systems, wherein this measurement grouping request unit is configured to send one and measures the grouping request, and reception confirms that from one of this second platform this platform receives this measurement grouping request.
22. as embodiment 20 or 21 described systems, wherein this measurement packet analysis device is configured to be received the measurement grouping, measured this measurement grouping and send one and select wave beam to this wave beam modifier by this second platform.
23. as the arbitrary described system of embodiment 20-22, wherein this measurement grouping request receiving system is configured to measure the grouping request, send an affirmation to this first platform from this first platform reception, and it receives this measurement grouping request and be sent to this measurement packet transfer device and divides into groups to this first platform so that send to measure.
24. as the arbitrary described system of embodiment 20-23, wherein this measurement packet transfer device is configured to send and measures grouping to this first platform.
25. a system of measuring with smart antenna in wireless communication system, it comprises a STA and one the 2nd STA.The one STA comprises first transmitter/receiver; First antenna, it is connected to this first transmitter/receiver; Measure the grouping request unit, it is connected to this first transmitter/receiver; Measure packet transfer device, it is connected to this first transmitter and this measurement grouping request unit; The wave beam modifier, it is connected to this first transmitter/receiver and this measurement packet transfer device; And measurement report analysis device, it is connected to this first transmitter/receiver and this wave beam modifier.The 2nd STA comprises second transmitter/receiver; Second antenna, it is connected to this second transmitter/receiver; Measure grouping request receiving system, it is connected to this second transmitter/receiver; And the measurement report generation device, it is connected to this second transmitter/receiver and this measurement packet analysis device.
26. as embodiment 25 described systems, wherein this measurement grouping request unit is to be configured to send measure the grouping request, and receives the affirmation from this second platform, this platform is to receive this measurement grouping request.
27. as embodiment 25 or 26 described systems, wherein this measurement packet transfer device is configured to send this measurement grouping to this second war platform.
28. as the arbitrary described system of embodiment 25-27, wherein this measurement packet transfer device is configured to send this wave beam modifier of signal will, to change the transmission beam of this first platform.
29. as the described system of embodiment 25-28, wherein this measurement report analysis device is to be configured to be received measurement report, selected transmission beam and send a signal to this wave beam modifier for this first platform according to this measurement report by this second platform, with this transmission beam of changing this first platform to this selected wave beam.
30. as the described system of embodiment 25-29, wherein this measurement grouping request receiving system is configured to measure the grouping request by this first platform reception, and sends affirmation to this first platform, it is to receive this measurement grouping request.
31. as the described system of embodiment 25-30, wherein this measurement packet analysis device is to be configured to be received this measurement grouping, measure this measurement grouping and passed on this measurement to this measurement report generation device by this first platform.
32. as the described system of embodiment 25-31, wherein this measurement report generation device is to be configured to receive this measurement by this measurement packet analysis device, and produces a measurement report to deliver to this first platform.
Although feature of the present invention and assembly are all described in the particular combinations mode in embodiment, but each feature or assembly can use alone among the embodiment, and do not need further feature or combination of components with better embodiment, or with/do not do different combinations with further feature of the present invention and assembly.Although the present invention has seen through preferred embodiment and described, the modification of desorption claim of the present invention is not conspicuous concerning the personage who has the knack of this skill for other.Above-mentioned description is for the purpose of description, and can not limit special invention by any way.
Claims (36)
1. method of in wireless communication system, measuring with smart antenna with several platforms STA, its step comprises:
Send the request of measurement to the 2nd STA from a STA;
Measure grouping to a STA from least two of the 2nd STA transmission;
On a STA, use the different antennae wave beam to receive each and measure grouping;
On a STA, each is measured grouping and carry out measurement; And
On a STA, select antenna beam direction according to this measurement result.
2. the method for claim 1 is characterized in that, this measurement request comprises the defeated measurement grouping of several tendencies to develop.
3. the method for claim 1 is characterized in that, this transmitting step comprises: transmit this measurement grouping continuously.
4. the method for claim 1 is characterized in that, this transmitting step comprises: side by side transmit this measurement grouping.
5. the method for claim 1 is characterized in that, this transmitting step comprises: wait for the interframe space between between the transmission measurement grouping.
6. method as claimed in claim 5 is characterized in that, this interframe space for short interframe space SIFS, less than SIFS and surpass SIFS one of them.
7. the method for claim 1 is characterized in that, this execution in step comprises: measure the received signal strength indicator RSSI that each measures grouping.
8. method as claimed in claim 6 is characterized in that, this selection step comprises: the RSSI value according to this measurement is selected the transmission beam direction.
9. the method for claim 1 is characterized in that, this execution in step comprises: measure the signal noise ratio SNR that each measures grouping.
10. method as claimed in claim 9 is characterized in that, this selection step comprises: the SNR value according to this measurement is selected the transmission beam direction.
11. the method for claim 1 is characterized in that, this execution in step comprises: measure received signal strength indicator RSSI and signal noise ratio SNR that each measures grouping.
12. method as claimed in claim 11 is characterized in that, this selection step comprises: RSSI value and SNR value according to this measurement are selected a transmission beam direction.
13. the method for claim 1 more is included in when receiving this measurement request, sends the step of confirming to a STA from the 2nd STA.
14. the method for claim 1, more be included in to receive and measure after the grouping, to change over different wave beams at this received beam of this antenna on the STA, thus, this antenna on a STA uses different wave beams to receive the next step of measuring grouping.
15. a method of measuring with smart antenna in the wireless communication system with several platforms STA, its step comprises:
Send the request of measurement to the 2nd STA from a STA;
Measure grouping to the 2nd STA from STA transmission at least two, each transmission grouping is to use the transmission of different antennae wave beam;
On the 2nd STA, receive each and measure grouping;
On the 2nd STA, each is measured grouping and carry out measurement;
On the 2nd STA, produce measurement report according to this measurement result;
Send this measurement report to this STA from the 2nd STA; And
On a STA, select antenna beam direction according to this measurement report.
16. method as claimed in claim 15 is characterized in that, this measurement request comprises the defeated measurement grouping of several tendencies to develop.
17. method as claimed in claim 15 is characterized in that, this transmitting step comprises: transmit this measurement grouping continuously.
18. method as claimed in claim 15 is characterized in that, this transmitting step comprises: side by side transmit this measurement grouping.
19. method as claimed in claim 15 is characterized in that, this transmitting step comprises: wait for the interframe space between between the transmission measurement grouping.
20. method as claimed in claim 19 is characterized in that, this interframe space for short interframe space SIFS, less than SIFS and surpass SIFS one of them.
21. method as claimed in claim 15 more is included in after this measurement request of reception, sends affirmation immediately to a STA by the 2nd STA.
22. method as claimed in claim 15, more be included in after the transmission measurement grouping, to change over different wave beams by this transmission beam of this antenna on a STA, thus, this antenna on a STA uses different beams to transmit the next step of measuring grouping.
23. method as claimed in claim 15 more comprises: when receiving this measurement request, send affirmation to the 2nd STA from a STA.
24. a system of measuring with smart antenna in wireless communication system, it comprises:
First platform, it comprises:
First transmitter/receiver;
First antenna, it is connected to this first transmitter/receiver;
Measure the grouping request unit, it is connected to this first transmitter/receiver;
Measure packet analysis device, it is connected to this first transmitter/receiver; And
The wave beam modifier, it is connected to this first transmitter/receiver and this measurement packet analysis device; And
Second platform, it comprises:
Second transmitter/receiver;
Second antenna, it is connected to this second transmitter/receiver;
Measure grouping request receiving system, it is connected to this second transmitter/receiver; And
Measure packet transfer device, it is connected to this second transmitter/receiver and this measurement grouping request receiving system.
25. system as claimed in claim 24 is characterized in that, this measurement grouping request unit is to be configured to transmission to measure the grouping request to this second platform, and receives an affirmation from this second platform, and this second platform is to receive this measurement grouping request.
26., it is characterized in that this measurement packet analysis device is to be configured to receive the measurement grouping, measure this measurement grouping and send a selected wave beam to this wave beam modifier from this second platform as claim 24 or 25 described systems.
27. as each described system among the claim 24-26, it is characterized in that, this measurement grouping request receiving system is to be configured to measure the grouping request, send affirmation to this first platform from this first platform reception, and it receives this measurement grouping request and send a signal to this measurement packet transfer device and divides into groups to this first platform so that send to measure.
28. as each described system among the claim 24-27, wherein this measurement packet transfer device is to be configured to send this measurement grouping to this first platform.
29. a system of measuring with smart antenna in wireless communication system, it comprises:
First platform, it comprises:
First transmitter/receiver;
First antenna, it is connected to this first transmitter/receiver;
Measure the grouping request unit, it is connected to this first transmitter/receiver;
Measure packet transfer device, it is connected to this first transmitter/receiver and this measurement grouping request unit;
The wave beam modifier, it is connected to this first transmitter/receiver and this measurement packet transfer device; And
Measurement report analysis device, it is to be connected to this first transmitter/receiver and this wave beam modifier; And
Second platform, it comprises:
Second transmitter/receiver;
Second antenna, it is connected to this second transmitter/receiver;
Measure grouping request receiving system, it is connected to this second transmitter/receiver;
Measure packet analysis device, it is connected to this second transmitter/receiver; And
The measurement report generation device, it is connected to this second transmitter/receiver and this measurement packet analysis device.
30. system as claimed in claim 29 is characterized in that, this measurement grouping request unit is to be configured to send one to measure the grouping request to this second platform, and from this second platform confirmation of receipt, this second platform is to receive this measurement grouping request.
31., it is characterized in that this measurement packet transfer device is to be configured to send measure grouping to this second platform as claim 29 or 30 described systems.
32., it is characterized in that this measurement packet transfer device is to be configured to send a signal to this wave beam modifier, to change the transmission beam of this first platform as each described system among the claim 29-31.
33. as each described system among the claim 29-32, it is characterized in that, this measurement report analysis device is to be configured to receive measurement report, select transmission beam and send a signal to this wave beam modifier for this first platform according to this measurement report from this second platform, with this transmission beam of changing this first platform to this selected wave beam.
34. as each described system among the claim 29-33, wherein this measurement grouping request receiving system is to be configured to receive from this first platform measure the grouping request, and sends one and confirm that to this first platform it is to receive this measurements grouping to ask.
35., it is characterized in that this measurement packet analysis device is to be configured to receive the measurement grouping, measure this measurement grouping and pass on this measurement to this measurement report generation device from this first platform as each described system among the claim 29-34.
36., it is characterized in that this measurement report generation device is to be configured to receive measurement from this measurement packet analysis device, and produces measurement report to deliver to this first platform as each described system among the claim 29-35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110221450.XA CN102355312B (en) | 2004-09-10 | 2005-09-07 | In wireless communication system, smart antenna is measured and is supported |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60921204P | 2004-09-10 | 2004-09-10 | |
| US60/609,212 | 2004-09-10 | ||
| US11/022,709 | 2004-12-27 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110221450.XA Division CN102355312B (en) | 2004-09-10 | 2005-09-07 | In wireless communication system, smart antenna is measured and is supported |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101084605A true CN101084605A (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580030246 Pending CN101084605A (en) | 2004-09-10 | 2005-09-07 | Measurement support for a smart antenna in a wireless communication system |
| CN 200520107250 Expired - Lifetime CN200947110Y (en) | 2004-09-10 | 2005-09-12 | System for performing measurement with intelligent antenna in wireless communication system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520107250 Expired - Lifetime CN200947110Y (en) | 2004-09-10 | 2005-09-12 | System for performing measurement with intelligent antenna in wireless communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848045A (en) * | 2010-06-13 | 2010-09-29 | 华中科技大学 | Method for measuring reference direction of dual-polarization intelligent antenna business beam |
| CN103220788A (en) * | 2012-01-19 | 2013-07-24 | 华为技术有限公司 | Method for grouping nodes, node and access point |
| CN111106448A (en) * | 2019-11-22 | 2020-05-05 | Oppo广东移动通信有限公司 | Client terminal device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8331265B2 (en) * | 2009-04-20 | 2012-12-11 | Samsung Electronics Co., Ltd. | System and method for adaptive beamforming training using fixed time window for heterogeneous antenna systems |
-
2005
- 2005-09-07 CN CN 200580030246 patent/CN101084605A/en active Pending
- 2005-09-12 CN CN 200520107250 patent/CN200947110Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848045A (en) * | 2010-06-13 | 2010-09-29 | 华中科技大学 | Method for measuring reference direction of dual-polarization intelligent antenna business beam |
| CN101848045B (en) * | 2010-06-13 | 2013-04-03 | 华中科技大学 | Method for measuring reference direction of dual-polarization intelligent antenna business beam |
| CN103220788A (en) * | 2012-01-19 | 2013-07-24 | 华为技术有限公司 | Method for grouping nodes, node and access point |
| WO2013107398A1 (en) * | 2012-01-19 | 2013-07-25 | 华为技术有限公司 | Node grouping method, node, and access point |
| US9622157B2 (en) | 2012-01-19 | 2017-04-11 | Huawei Technologies Co., Ltd. | Node grouping method, node, and access point |
| CN111106448A (en) * | 2019-11-22 | 2020-05-05 | Oppo广东移动通信有限公司 | Client terminal device |
| CN111106448B (en) * | 2019-11-22 | 2021-10-19 | Oppo广东移动通信有限公司 | Client terminal device |
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|---|---|
| CN200947110Y (en) | 2007-09-12 |
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