CN2930123Y - Multiband wireless transmission/receiving unit and multiband access point in wireless communication system - Google Patents
Multiband wireless transmission/receiving unit and multiband access point in wireless communication system Download PDFInfo
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- CN2930123Y CN2930123Y CN 200620114903 CN200620114903U CN2930123Y CN 2930123 Y CN2930123 Y CN 2930123Y CN 200620114903 CN200620114903 CN 200620114903 CN 200620114903 U CN200620114903 U CN 200620114903U CN 2930123 Y CN2930123 Y CN 2930123Y
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Abstract
A method and apparatus for selecting one of a plurality of multi-band access points (APs) to associate with a multi-band wireless transmit/receive unit (WTRU) are disclosed. The multi-band APs broadcast frequency band information regarding multiple frequency bands on which the multi-band AP is configured to operate. The multi-band WTRU selects a particular multi-band AP to associate with and a frequency band to use to communicate with the selected multi-band AP based on the frequency band information. If the multi-band WTRU receives frequency band information from the selected multi-band AP which indicates that a characteristic, (e.g., throughput, path loss, load, capacity, backhaul), of the selected frequency band is unacceptable, the multi-band WTRU determines whether to disassociate with the selected multi-band AP or to continue to associate with the selected multi-band AP via a different frequency band.
Description
(1) technical field
The utility model relate to a kind of have a plurality of many band access points (access points, APs) and be with wireless transmission/receive unit (wireless transmit/receive unit, WTRU) wireless communication system of (that is a mobile radio station) one more.Say that further the utility model relates to a kind of device of selecting the next and described many band WTRU of a specific AP to get in touch based on described a plurality of band informations how band Aps transmit out in described a plurality of many band APs.
(2) background technology
(wireless local area network WLAN) comprises an AP to typical WLAN, and described AP provides radio to be accessed to the WTRUs of position in described AP area coverage.(basic service set BBS) forms described AP, and described BBS is a foundation construction module based on the WLAN of IEEE 802.11 by a basic service set.The BBSs of multichannel can pass through a distribution system (distributionsystem, DS) link mutually and form an extended service set (extended service set, ESS).
Described WLAN can infrastructure mode or wireless network point-to-point transmission pattern come construction.In infrastructure mode, need to control radio communication by an AP.This AP periodically broadcast beacon frame carries out identification in order to WTRUs and communicates by letter with this AP.In wireless network point-to-point transmission pattern, a plurality of WTRU operate in a point-to-point communication pattern.These WTRU do not need with situation that networking component is coordinated under between them, set up and communicate by letter.Yet AP may be through the group structure and as being bridge or router to another network, for example the internet.
These WTRUs and AP can use multifrequency to bring communication through the group structure.In a traditional wireless communication system, the multiple exploration request of transmission is so that understand whether can find any useful AP in this area on the different channels of band WTRU more than in a frequency band.In case an AP has received this exploration request, this AP just transmits one and explores response packet to this WTRU.This AP will send this probe response package on the channel of operation at it in a specific frequency band.This exploration response packet comprises required parameter, for example supporting rate that supplies this WTRU and this AP to get in touch, or similar person.This WTRU will send an association request package and wait for that an association response package from an AP is so that carry out further data communication.
In case get in touch with, this multichannel WTRU may scan other frequency range and look for preferable communicating by letter so that explore Request Packet by transmission one with waiting for a probe response package.According to another probe response package that is received, this WTRU is frequency band and/or preferable frequency band of this AP selection and/or AP relatively.
In traditional wireless communication system, be with WTRU to scan more and relatively different frequency bands so that decision provides the frequency band of optimal wireless communication quality.Therefore yet these scan with comparing function and but are consuming time and need a large amount of electric power, need a kind of minimizing time and reduce required electric power and can determine the device of frequency band and channel selection of being used for.
The utility model provides the many bands wireless transmission/receive unit and many band access points in a kind of wireless communication system, and it effectively reduces decision frequency band and channel and selects required time and reduce required electric power.
(3) utility model content
The utility model relates to a kind of in order to select an AP to come the device of getting in touch with the WTRU of band more than in a plurality of many band APs.Described many band APs broadcasting band information relevant with band multiplex, selected AP operates on described band multiplex.Should select a specific AP so that get in touch by many band WTRU, and use a frequency band and selected many band AP to communicate based on described band information.If should be with the band information of WTRU reception from selected many band AP more, wherein selected many band AP have indicated a feature (throughput for example of selected frequency band, path loss, load, capacity, the backhaul station) be unacceptable, whether so described many band WTRU decision is not got in touch with selected many band AP or is got in touch with selected many band AP by different frequency bands.
The beneficial effects of the utility model are: effectively reduce decision frequency band and channel and select required time and reduce required electric power.
(4) description of drawings
The utility model can the explanation more at large by following description of lifting example, but and the boundary with reference to appended graphic and make us clear.Wherein saidly graphicly be:
Fig. 1 has presented one and has had a plurality of many band AP that operate according to the utility model and the wireless communication system of being with WTRU one more;
Fig. 2 is an exemplary beacon frame, and this exemplary beacon frame comprises the band information that is transferred to described many band WTRU by described many band APs of the wireless communication system of Fig. 1;
Fig. 3 is with WTRU for the utility model more and selects an AP so that the method flow diagram of getting in touch in described many band APs;
Whether Fig. 4 is with WTRU decision for the utility model more will change a method flow diagram that is used for the special frequency band of getting in touch with band AP radio communication more than one or with the different AP of being with more; And
Fig. 5 is for coming to set up the method flow diagram of radio communication link between many band WTRU and preferable many band AP by a preferable frequency band according to the utility model.
(5) embodiment
In following content, term " WTRU " comprise but be not limited to user's equipment (userequipment, UE), mobile radio station, fixing or moving user unit, calling set or other device that can under wireless environment, operate.Phone, voice call, the internet that the WTRU of this class includes but are not limited to: have network capabilities await orders phone, personal digital assistant (personal data assistances, PDAs) and mobile computer.
In following content, term " AP " comprises but is not limited to Node B, base station, positioner or other interface arrangement in wireless environment, and described wireless environment provides other WTRUs with radio access network to this AP got in touch.
Feature of the present utility model and assembly can be at single IC for both (integrated circuit, IC) (application-specific integrated circuit (ASIC) (application specific integrated circuit for example, ASIC)), multiple Ics, the discrete component or the combination of discrete component and ICs go up and implement.
The utility model is applicable to the wireless communication system of any kenel, and described wireless communication system comprises, but is not limited to the wireless communication system based on 802.x.
Fig. 1 has presented a wireless communication system 100, and described wireless communication system 100 comprises a plurality of many band APs 1051-1055 and the WTRU 110 of band more than that operates according to the utility model.Among many band APs1051-1055 each is with AP more and should be all operated at least two frequency bands respectively by many band WTRU 110.Many band APs 1051-1055 transmission band information 1151-115N, band information 1151-115N points out the operated different many bands of each many band AP among these many band APs 1051-1055.Each many band AP among many band APs 1051-1055 respectively comprise a transceiver among the transceiver 1201-1205 and the processor of processor 1251-1255.Each transceiver 1201-1205 can operate at least two different frequency bands through the group structure.Each processor 1251-125N separately produce and format separately band information 1151-115N and provide this information to this transceiver 1201-120N to transmit.Should also comprise a transceiver 130 and a processor 135 by many band wireless transmission/receive units 110.This transceiver 130 is used for operating at least two frequency bands.This processor 135 is handled by this receipts device and is sent out 130 from this band information 1151-115N how band APs 1051-105N are received, and select more than one band AP decorrelations according to this band information 151-115N, and a frequency band is used for communicating with selected many band AP.
Should be with wireless transmission/receive units 110 more and should may use any management, control or data packet to provide this band information by many band APs 1051-105N more to these wireless transmission/receive units 110 of being with.For instance, an acknowledgement frame (management frames) also can be used for transmitting many band frequency informations.Same, this package can the attached formula of the back of the body transmit (piggybacked) in any present with following WLAN package.
In an alternate embodiment, these many band wireless transmission/receive units 110 with should many band APs 1051-105N between proprietary (proprietary) information of exchanging also can be used to provide this band information and give and should be with wireless transmission/receive units more.
Fig. 2 represents the specific embodiment of a beacon frame, and it comprises band information 115 and is with in wireless transmission/receive units 100 from being somebody's turn to do of wireless communication system 100 that each many band APs1051-105N is sent to Fig. 1 more.Whether these band information 115 indications one specific many band AP 105 support many band frequency band 2051-205N, the number of channel 215 and clocking information 220 and similar information.
This band information 115 may further comprise the quality dimension information 2101-210N of each this frequency band 2051-205N.This quality metrics information 2101-210N may comprise but be not limited to is that path loss, load (with the relevant number of this no county's transmission receiving element), throughput, capacity and delivery behind on each frequency band is apart from (backhaul) etc.
Fig. 3 is a process chart of a handling procedure 300, in order to set up according to the band information 1151-115N that is sent to these many band wireless transmission/receive units 110 from these many band APs 1051-105N the 1051-105N one specific one with in the wireless communication system 100 of the 1st figure, should be with the radio communication between the wireless transmission/receive units 110 to be connected more.In step 305, a plurality of many band APs 1051-105N broadcasting band information 1151-115N relevant with multiband, wherein many band APs 1051-105N separately are according to operating by many bands.This band information 1151-115N can broadcast in a beacon frame, shown in Fig. 2.In step 310, the wireless transmission/receive unit of band more than one 110 receives and handles this band information 1151-115N.In step 315, these many band wireless transmission/receive units 110 select should many band APs 1051-105N wherein one specific one come relevantly with it, and a frequency band is used for communicating with selected AP 105 according to this band information 1151-115N.
Fig. 4 represents the process chart of a handling procedure 400 of these many band wireless transmission/receive units 110, carry out the employed special frequency band of radio communication in order to determine whether to change, or remove to get in touch a different AP 105 according to the utility model conception with more than one band AP 105.In step 401, these many band wireless transmission/receive units 110 are from these specific many band AP 105 frequency acceptance band information 115, and it comprises a quality metrics has to indicate this special frequency band, for instance, and bad throughput etc.In step 415, should be many band wireless transmission/receive unit 110 no matter be to remove with these specific many band AP 105 to get in touch and get in touch with another AP 105 of being with more or continue to get in touch many band AP105 identical on a different frequency bands, and for these identical many band AP 105,115 of this band informations are meant that a quality metrics indicated good (just higher) throughput.
Fig. 5 represents the process chart of a handling procedure 500, in order to set up these many band wireless transmission/receive units and to be connected according to the radio communication between the preferable many band AP on the of the present invention one preferable frequency band.In step 505, the wireless transmission/receive unit of band more than one 110 broadcasting one association request packages or an exploration Request Packet that is received by a plurality of many band APs 1051-105N.Should can in the package of being asked, comprise an indication of this many bands capacity and the relevant information of this wireless transmission/receive unit by many band wireless transmission/receive units 110.In step 510, should be with the response packet or a probe response package of each transmission one contact of APs 1051-105N to be with wireless transmission/receive units 110 to being somebody's turn to do, it comprises the band information 1151-115N according to many bands capacity of this wireless transmission/receive unit 110 more more.In step 515, these many band wireless transmission/receive units 110 select a preferable frequency band and preferable many band AP 105 to get in touch according to this band information 1151-115N.
In another preferred embodiment, this wireless communication system 100 is with APs 1051-105Ns except this more and should be with the wireless transmission/receive unit 104a more, may also comprise the wireless transmission/receive unit that a list is with an AP and a single band.If a single band wireless transmission/receive unit and more than one band AP 105 get in touch, be that the information that frequency band that the information relevant with the multiband information of these many band AP 105 rather than this list band wireless transmission/receive unit institute operate according to this is correlated with can be with wireless transmission/receive unit ignore by this list, because this list is with wireless transmission/receive unit not to be used for communicating on these a plurality of frequency bands.This single band AP broadcasts its information relevant with its single band (for example timing, appendix or similar information) in a beacon frame.Whether one single band wireless transmission/receive unit and more than one band wireless transmission/receive units 110 can use this information to get in touch with this list band AP with decision.
According to conception of the present utility model, these many band wireless transmission/receive units 110 do not need to consume a lot of times when the enough AP of searching get in touch and the power of battery scans different frequency bands.In addition, by the quality metrics that provides these multi-band wireless transmission rank to receive unit 110 each frequency band (for example, throughputs etc.), this wireless transmission/receive unit 110 is itself throughput of optimization not only, and throughput that can this AP 105 of optimization.
Though these features of the present invention and assembly are described with specific compound mode in these preferred embodiment, do not need yet aforesaid each assembly or feature also can be used separately with this specific embodiment in other feature and assembly made up, or aforesaid each assembly or feature also can with or do not made up with other different variation patterns with further feature of the present invention and assembly.
Claims (6)
1. many bands wireless transmission/receive unit that is used for a wireless communication system, described wireless communication system comprises a plurality of many band access points, each access point configuration is used for operating on a plurality of different frequency bands, it is characterized in that, described many band wireless transmission/receive units comprise:
One transceiver, described transceiver configuration are used at least two frequency bands of operation; And
One processor, the configuration of described processor is used to handle the band information that receives from described access point, and an access point that is used for selecting described access point is to get in touch and to select a frequency band to communicate with selected access point being used for based on this band information.
2. many bands wireless transmission/receive unit that is used for a wireless communication system, described wireless communication system comprises a plurality of many band access points, each access point configuration is used for operating on a plurality of different frequency bands, it is characterized in that, described many band wireless transmission/receive units comprise:
One transceiver, described transceiver configuration are used at least two frequency bands of operation; And
One processor, described processor configuration is used to handle the band information that receives from described access point, and an access point that is used for selecting described access point is to get in touch and to select a frequency band to communicate with selected access point being used for based on this band information, wherein said band information comprises the quality metrics of each frequency band, thereby described processor can be selected described access point and described frequency band based on described quality metrics.
3. many bands wireless transmission/receive unit that is used for a wireless communication system, described wireless communication system comprises a plurality of many band access points, each access point configuration is used for operating on a plurality of different frequency bands, it is characterized in that, described many band wireless transmission/receive units comprise:
One transceiver, described transceiver configuration are used at least two frequency bands of operation; And
One processor, described processor configuration is used to handle the band information that receives from described access point, and an access point that is used for selecting described access point is to get in touch and to select a frequency band to communicate with selected access point being used for based on this band information, wherein said band information comprises the quality metrics of each frequency band, and described quality metrics comprises a backhaul station of each frequency band, one path loss, a load, in throughput and the capacity at least one of them.
4. many bands access point that is used for a wireless communication system, described wireless communication system comprise a plurality of many band access points and more than one band wireless transmission/receive units, it is characterized in that, the described access points of being with comprise more:
One transceiver, configuration are used at least two frequency bands of operation; And
One processor, configuration is used for a band information is sent to described wireless transmission/receive unit, select a wherein access point of described access point to get in touch to activate described wireless transmission/receive unit, and activate a frequency band, in order to communicate with selected access point based on described band information, wherein said band information is relevant with the frequency band that access point is operated thereon.
5. many bands access point that is used for a wireless communication system, described wireless communication system comprise a plurality of many band access points and more than one band wireless transmission/receive units, it is characterized in that, the described access points of being with comprise more:
One transceiver, configuration are used at least two frequency bands of operation; And
One processor, configuration is used for a band information is sent to described wireless transmission/receive unit, select a wherein access point of described access point to get in touch to activate described wireless transmission/receive unit, and activate a frequency band, in order to communicate with selected access point based on described band information, wherein said band information is relevant with the frequency band that access point is operated thereon, wherein said band information comprises the quality metrics of each frequency band, thereby described wireless transmission/receive unit can be selected described access point and described frequency band based on described quality metrics.
6. many bands access point that is used for a wireless communication system, described wireless communication system comprise a plurality of many band access points and more than one band wireless transmission/receive units, it is characterized in that, the described access points of being with comprise more:
One transceiver, configuration are used at least two frequency bands of operation; And
One processor, configuration is used for a band information is sent to described wireless transmission/receive unit, select a wherein access point of described access point to get in touch to activate described wireless transmission/receive unit, and activate a frequency band, in order to communicate with selected access point based on described band information, wherein said band information is relevant with the frequency band that access point is operated thereon, wherein said band information comprises the quality metrics of each frequency band, and described quality metrics comprises a backhaul station of each frequency band, one path loss, one load, in throughput and the capacity at least one of them.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66752305P | 2005-04-01 | 2005-04-01 | |
| US60/667,523 | 2005-04-01 | ||
| US11/284,242 | 2005-11-21 |
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| Publication Number | Publication Date |
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| CN2930123Y true CN2930123Y (en) | 2007-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006800112706A Pending CN101156421A (en) | 2005-04-01 | 2006-03-30 | Method and apparatus for selecting a multi-band access pointto associate with a multi-band mobile station |
| CN 200620114903 Expired - Lifetime CN2930123Y (en) | 2005-04-01 | 2006-04-03 | Multiband wireless transmission/receiving unit and multiband access point in wireless communication system |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006800112706A Pending CN101156421A (en) | 2005-04-01 | 2006-03-30 | Method and apparatus for selecting a multi-band access pointto associate with a multi-band mobile station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103561434A (en) * | 2009-09-01 | 2014-02-05 | 英特尔公司 | Device, system and method of transferring a wireless communication session between wireless communication frequency bands |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4976505B2 (en) | 2007-01-13 | 2012-07-18 | サムスン エレクトロニクス カンパニー リミテッド | Signal transmission / reception method and system using multiple frequency bands in wireless communication system |
| US8503377B2 (en) | 2008-09-25 | 2013-08-06 | Intel Corporation | Methods for multi-band wireless communication and bandwidth management |
| US8374100B2 (en) * | 2009-12-24 | 2013-02-12 | Intel Corporation | Method and system for multiband rate scaling |
| CN102761358A (en) * | 2011-04-25 | 2012-10-31 | 胡显廷 | Novel control device of wireless communication system |
| WO2015038175A1 (en) * | 2013-09-10 | 2015-03-19 | Intel Corporation | Methods and apparatus for dynamic bandwidth management in millimeter wave systems |
-
2006
- 2006-03-30 CN CNA2006800112706A patent/CN101156421A/en active Pending
- 2006-04-03 CN CN 200620114903 patent/CN2930123Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103561434A (en) * | 2009-09-01 | 2014-02-05 | 英特尔公司 | Device, system and method of transferring a wireless communication session between wireless communication frequency bands |
| CN103561434B (en) * | 2009-09-01 | 2017-12-26 | 英特尔公司 | The devices, systems, and methods of wireless communication sessions are shifted between wireless communication frequency band |
| US10027452B2 (en) | 2009-09-01 | 2018-07-17 | Intel Corporation | Device, system and method of transferring a wireless communication session between wireless communication frequency bands |
| US10122504B2 (en) | 2009-09-01 | 2018-11-06 | Intel Corporation | Device, system and method of transferring a wireless communication session between wireless communication frequency bands |
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| CN101156421A (en) | 2008-04-02 |
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