CN200947610Y - Wireless LAN for transmitting delay management information - Google Patents
Wireless LAN for transmitting delay management information Download PDFInfo
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- CN200947610Y CN200947610Y CNU2006200061218U CN200620006121U CN200947610Y CN 200947610 Y CN200947610 Y CN 200947610Y CN U2006200061218 U CNU2006200061218 U CN U2006200061218U CN 200620006121 U CN200620006121 U CN 200620006121U CN 200947610 Y CN200947610 Y CN 200947610Y
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- 238000007726 management method Methods 0.000 abstract description 57
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
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- H—ELECTRICITY
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- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
A deferral management method is implemented in a wireless local area network (WLAN) including an access point (AP) and a plurality of wireless transmit/receive units (WTRUs). The AP sends a deferral management capabilities request message to the WTRUs to determine the deferral management capabilities of the WTRUs. In response, each of the WTRUs sends a deferral management capabilities indicator message to the AP. The AP may also send a deferral management parameter set message to the WTRUs to indicate values for setting deferral management parameters. In response, each of the WTRUs may optionally send a deferral management parameter set execution confirmation message to the AP. The WTRUs may also set the values of various deferral management parameters in accordance with a certain rule specified in a deferral management rule message sent by the AP. Optionally, the WTRUs may respond to the AP with a deferral management rule execution confirmation message.
Description
Technical field
The utility model system is relevant to a kind of WLAN, and (wireless local area network, WLAN), more particularly, the utility model system is relevant to and carries out the deferral management messages strategy among WLAN.
Background technology
One WLAN (wireless local area network, WLAN), for example, for example (but being not limited to), one IEEE, 802 WLAN, system can use a Carrier Sense Multiple Access/conflict to avoid (carrier-sense multiple access/collision avoidance, CSMA/CA) planning, with at a plurality of wireless transmission/receive units (wireless transmit/receive units, WTRUs) (that is, mobile platform (mobile stations, STAs)) share a wireless medium (wireless medium between, WM), this planning then is to force described WTRUs before transmission one package, the described WM of sensing is for idle in advance, or it is busy, and this is to utilize a clear channel assessment (CCA) (clear channel assessment, CCA) function and being carried out, if a WTRU sense described channel when busy (be afterwards title be, one WTRU hears (hearing) another kind of transmission), then described WTRU just can't transmit its package, and, before trying to win the competition of described channel, system must wait by the time described signal for till idle, this be claimed for delaying, and by avoiding two to hear that WTRUs each other transmits simultaneously, described CSMA/CA planning just can be controlled the grade of interference among described system.
Among a WLAN, the interference system of one low order can improve the ability of described system indirectly, can be when disturbing minimizing the increase as tie the throughput of being reached (throughput) in each radio company, in other words, transmitting the cost that is produced simultaneously for fear of two nodes can hearing each other on same channel is because the spectral channel resource of the shortage that can't reuse causes, therefore, be can (base station systems BSSs) uses in the system of same channel and causes limited ability in a plurality of base station system.
In the CSMA/CA system, the decision (at this, described the 2nd WTRU is the position on from the set path of a WTRU) whether one the one WTRU will accept one the 2nd WTRU is to depend on two factors: the employed described through-put power of (1) described WTRU; And the employed reception of (2) the 2nd WTRU/delay critical value, so, by control these a little factors wherein one or both, it is the degree that delays that might be controlled among the WLAN, and therefore, ability.The reception of two keys/delay critical value system can be used among the described CCA function that is the WTRUs that operates among the CSMA/CA, it is: (1) energy measuring critical value (energy detect threshold, EDT), it is a minimum received signal power of representing a package of attempting to receive, and (2) described critical value (defer threshold that delays, DT), it is a minimum received signal power of representing the transmission of a package by described WTRU to be postponed.
Combine it, sometimes, preferable viewpoint can be, reducing described through-put power among channel (co-channel) BBSs altogether, and/or the ability of the DT/EDT of increase WTRUs, therefore, from one the described WTRUs wherein of described BSSs can't accept described BSSs more described wherein another, anti-is as the same, but, if delay the adjustment of parameter and be do not consider this adjust for the situation of the effect of other WTRUs under and when individually being carried out at each WTRU place, then will have problems, for example, if when a WTRU exceedingly reduces its through-put power, then for other WTRUs in identical BSS, it will become and can not see through described EDT, or DT and since then WTRU detect described signal, and, may produce the situation of concealed nodes (hidden node), and, concealed nodes phenomenon across BSSs also might take place, so, for optimal suitable running, will be in the coordination between the described WTRUs, so that can collect all needed information at the described node place that delays the setting of parameter of described decision, this node then can be described WTRU itself, an or the access point (accesspoint that described WTRU was correlated with, AP), among the latter's example, also can need to coordinate so that described AP can and described (etc.) link up the numerical value that described the best delays parameter between the WTRU (s) that is concerned about.
Summary of the invention
The purpose of this utility model provides a kind of WLAN that sends deferral management messages and is not considering under the situation of this adjustment for the effect of other WTRUs to solve, when individual other delays being adjusted at each WTRU place and being carried out of parameter, issuable problem.
The utility model system is relevant to a WLAN, and in wherein, delays that management parameters system can (wireless transmit/receive units WTRUs) uses for a plurality of wireless transmission/receive units.Access point (access point in described WLAN, AP) be to send one to delay managerial ability requirement information to described WTRUs, to determine the described managerial ability that delays of described WTRUs, for example, maximum transfer rate, minimum transfer and/or dynamic range, minimum and maximum DT/EDT, and different CCA pattern, then, in order to respond, each of described WTRUs then is can send one to delay managerial ability parameter setting information to described AP, then, described AP can also send one to delay the management parameters set information to described WTRUs, be used to set the numerical value that delays management parameters with indication, it is to comprise the identification of information destination, the construction time restriction, and through-put power is set, moreover, in order to respond, each of described WTRUs is that it(?) all can tool optionally send one to delay management parameters and set and carry out confirmation to described AP, and among an embodiment who substitutes, described WTRUs can also set the various numerical value that delays management parameters according to stating clearly an ad hoc rules that delays among the rule information that sends in described AP, and selectively be that described WTRUs can comprise owing to carry out the described rule execution confirmation that delays that delays the described actual value of management parameters that described rule produced by one to respond described AP.
The utility model system is relevant to the wireless system that uses CSMA/CA planning, for example, for example (but being not limited to), described IEEE 802 family's standards, wherein, delay to manage that to measure be to utilize a coordination mode and carry out between all WTRUs, and among medium and bigger comparatively speaking wireless system, delaying management strategy then is to increase described system capability by the factor more than 500%.At this, the applied special example of the utility model is to drop among the scope of described IEEE 802.11v standard.
The utility model system provides the mechanism that delays management parameters that makes the described WTRUs of a BSS can utilize a coordination approach and set them, and this will finally can cause the potential increase that management policy can fully utilize them can provide on ability is provided.
The WLAN of transmission deferral management messages provided by the utility model can be coordinated between different WTRUs, so that can collect all needed information and obtain optimal suitable running at the described node place that delays the setting of parameter of decision.
Description of drawings
Relevant more detailed explanation of the present utility model system can by next as an example usefulness and be associated with the narration that appended icon understands and obtained, wherein:
Fig. 1: it is demonstration according to the of the present utility model one signal transmission flow figure that delays the supervisory signal router, and among described program, an AP be can definition by the employed parameter that delays of a plurality of WTRUs;
Fig. 2: its be demonstration according to of the present utility model during WTRU measures employed one a signal transmission flow figure who delays the supervisory signal router; And
Fig. 3: it is demonstration according to the of the present utility model one signal transmission flow figure that delays the supervisory signal router, and among described program, the employed rule that delays of at least one WTRU is by being defined by described AP.
Embodiment
Though feature of the present utility model and assembly are to narrate with the preferred embodiment of special combination, but each feature or assembly also can use (under the situation of further feature that does not need described preferred embodiment and assembly) individually, or in conjunction with or do not use under the situation in conjunction with further feature of the present utility model and assembly.
When in after when mentioning, proper noun " WTRU " includes, but are not limited to, one user's equipment (userequipment, UE), mobile platform, fix or moving user unit calling set, or any other kenel device that can in a wireless environment, operate, and when in after when mentioning, proper noun " AP " promptly includes, but not limited to a Node B, one positioner, or any other kenel device that can in a wireless environment, be situated between and connect.
The preferred embodiment that the utility model system provides two execution to delay to manage.Among first embodiment, one AP system can be directly with its relevant WTRUs at least wherein one link up these WTRUs should their numerical value that delays management parameters of described setting, and among second embodiment, an AP then be can with its ditch at least wherein of relevant WTRUs be common to calculating and set the rule that delays management parameters that they have.
For the described management parameters that delays of WTRUs can be controlled by an AP on other basis, be that two kinds of preferable signalling procedures are arranged.First kind of signalling procedure system makes described AP can indicate the described parameter that delays of described use that described at least one WTRU answers at least one WTRU, and second kind of signalling procedure then is to make described AP to collect the described measurement that delays the decision of parameter that is relevant to described use that at least one WTRU answers from least one WTRU.
Fig. 1 is at a wireless communication system (for example, a WLAN) flow chart of performed described first signalling procedure in 100, and wherein, described wireless communication system comprises, an AP 105 and a plurality of WTRUs110
1-110
NEach of described WTRUs 110 and described AP 105 can comprise a receiver, one processor, an and transmitter (not shown), in addition, described AP 105 can send one to delay managerial ability requirement information 115 to one WTRU or a plurality of WTRUs, to report that it delays managerial ability, and describedly delay managerial ability to require information 115 be to can be used as a broadcasting, multicast or single-point broadcast singal and transmit, the described managerial ability that delays then is to comprise following parameter:
1) maximum transmission power of described WTRU, minimum transmission power, and/or dynamic range;
2) operable minimum DT/EDT of described WTRU and maximum DT/EDT; And
3) the different CCA that described WTRU supported (Clear Channel Assessment, clear channel assessment (CCA)) pattern.
One delay managerial ability indicator information 120 be can by described (etc.) WTRU (s) 10 sends, describedly being delayed the response that managerial ability requires information 115 as what send for described AP 105, the described managerial ability indicator information 120 that delays then is to be additional to so that a connection requires information or is linked to another information of the connection/permission control program (association/admission control procedure) of the permission of the described WTRU 110 of management in described WLAN 100 for a moment.
One delay management parameters set information 125 be can be from described AP 105 be sent to described WTRUs 110 wherein one or many, the described management parameters set information 125 that delays then is which numerical value of indication to be to set for it delays management parameters, wherein, the described management parameters set information 125 that delays is to can be used as a broadcasting, multicast or single-point broadcast singal and transmit, and, be preferably to comprise following information:
1) the identification system that is used for the described WTRU destination of described information can be provided, and be preferably, described identification will be medium access control (medium access control, MAC) address, but, also be the WTRU destination identification symbol that can use any other kenel.
2) one of described WTRU delays management parameters it delays the required time point that is performed of construction that the management parameters set information carries out according to one, perhaps, alternatively, the described management parameters set information 125 that delays is the time restriction that can indicate the described construction that need be held.Described temporal information can be expressed as time skew (time offset) or be the form of absolute (absolute).
3) describedly delay the described numerical value that management parameters and described WTRU need use.So the example of parameter is:
A) through-put power among normal running is set.
B) through-put power among special operational is set, and wherein, the example of special operational system includes, but not limited to scan operation and measurement collection.
C) DT/EDT among normal running sets.
D) DT/EDT among special operational sets, and wherein, the example of special operational system includes, but not limited to scan operation and measurement collection.
E) (a plurality of) CCA pattern.
As in shown in Fig. 1, one delay management parameters set to carry out confirmation 130 be can tool optionally by described (etc.) WTRU (s) 110 sends, to confirm to described AP 105, in a given described construction indicated in the management parameters set information 125 that delays is to hold, described tool optionally delays management parameters, and set to carry out confirmation 130 then be to be included in the above-mentioned described any described parameter that stated clearly in the management parameters set information of delaying, perhaps can be to make the described management parameters that delays set carry out confirmation 130 and produce a related transition designator, as for to delay to state clearly in the management parameters setting execution confirmation 130 the described reason that delays to manage then be will make described AP 105 can report according to described to delay the actual parameter that management parameters set information 125 is set described with the described corresponding management parameters set information 125 that delays.For example, described WTRU 110 is set at 0dBm with its through-put power if described AP 105 is order, with and EDT be set at-during 75dBm, then just might be, described WTRU 110 can be reduced to its EDT-75dBm, also can reduce its power, be lower than 13dBm but can't be reduced to, among such example, described WTRU 110 just can send one and delay management parameters and set to carry out confirmation 130, with indication by provide with can be in the described true setting of the described described construction that delays to manage the information of the identical kenel of finder in the sharp parameter setting information 125 and reached.
Fig. 2 is a flow chart of described secondary signal router performed in a wireless communication system 200, and wherein, described wireless communication system 200 is to comprise, an AP 205 and a plurality of WTRUs 210
1-210
NEach of described WTRUs 210 and described AP 105 can comprise a receiver, one processor, an and transmitter (not shown), in addition, described secondary signal router is to make described AP 205 to collect the described measurement that delays parameter that be relevant to decision WTRU (s) the 210 described uses of answering from WTRU (s) 210, and relevant measurement then is to include, but are not limited to:
1) WTRU is from the signal strength signal intensity (or its mean value) of the package that other special WTRUs received.
2) quantity of the package that is derived from other specific WTRUs that received of a WTRU and whole the duration.
This signalling procedure is can compensation to be that the providing capability aspect during the normal running describedly delays management parameters it needs to carry out when measuring at described WTRU 210 for best, for example, described scan period during, it may not be possibility for the best, for example, need a set WTRU 210 in increasing among the normal running among the special situation of its DT/EDT one, might measure owing to accurately measuring some once high DT/EDT, for example, channel occupies, and the ability of the described WTRU 210 that detracts, so, for fear of so one detracting, described AP 205 can indicate, as the some of a measurement requirement, when collecting measurement, which delays management parameters is that a WTRU answers described use.
As shown in Fig. 2, one measurement requirement information 215 be sent to by described AP 205 described (etc.) WTRU (s) 210, and it is to indicate described WTRUs 210 will carry out the measurement of which kind of kenel, and that (for example delays management parameters, DT/EDT, the CCA pattern, or fellow) should be described to when collecting the described measurement that is required, be used, then, one measurement report information 220 is to be sent to described AP 205 by described WTRU (s) 210, with the result that indicates described measurement and which has (for example delay management parameters, DT/EDT, the CCA pattern, or fellow) correctly is used to collect the described measurement of having reported, at this, described information 215 and 220 is can be dividually, or use together, in addition, during measuring employed described delay management parameters system can be different from described AP 205 in described measurement requirement information 215 desired those, and the described measurement from relative WTRUs 210 is collected in utilization, 205 of described AP can carry out calculating, and determine the described the best that is used for each WTRU 210 to delay parameter, for example, a possible strategy is, the described EDT of a set WTRU 210 is set the minimum signal strength (deducting a tolerance (margin)) that WTRU210 for this reason receives the package of other WTRUs 210 of self-alignment in identical BSS.
Just as previously explained, described to delay to manage be that the needs that utilize a coordination mode and carried out across all WTRUs are arranged so that described system can utilize fully can be by delaying the capacity gain (capacity gain) that administrative institute reaches.In the past, what presented is to allow an AP to utilize a direct mode and determine described numerical value on one's own initiative, and the described signal transmitter system that delays management parameters of setting its each WTRU that is correlated with, this strategy then is that to delay the management parameters setting can be consistent for can guarantee to be used for each WTRU described, because they be can a certain location (that is, described AP) calculates, and on the other hand, the fact of this centralized planning institute foundation is, described AP can collect quite a large amount of measurements and signal transmission from described WTRUs, for example, to an AP that can determine the described DTEDT numerical value that a WTRU should described use in order to make described WTRU can not accept a set extra BSS WTRU of common channel, described AP may need to determine that described WTRU is received from the signal strength signal intensity of the package of described extra BSS WTRU.
That reduces in described system needed signal traffic volume alternatively reaches planning and then is for a moment, each WTRU can be responsible for the described numerical value that delays management parameters that determines and set them, but, described AP can be set in the described numerical value of decision and set they delay management parameters the time, mandatory guilding principle of WTRUs institute or rule.So the employed described consistency that delays to provide between the management strategy of each WTRU is provided in a planning, and the same time, some signals that also allow described system alleviate between described WTRU and described AP send.
Fig. 3 system is presented at a signalling procedure performed in the wireless communication system 300, and wherein, described wireless communication system 300 is to comprise an AP 305 and a plurality of WTRUs 310
1-310
N, each of described WTRUs 310 and described AP 305 can comprise a receiver, a processor, and a transmitter (not shown).Described AP 305 can send one to delay rule information 315 at least one WTRU 310, wherein then be stated clearly described WTRU310 for determine to be used for its described numerical value that delays management parameters the special rules that must follow, moreover, selectively be, after the described rule that is sent according to described AP 305 is calculated the described suitable setting that delays management parameters, described WTRU 310 be can by one comprised since carry out that described rule produced described (etc.) delay management parameters described (etc.) rule that delays of actual value carries out confirmation 320 and responds described AP 305, and, successively, when transmission delayed rule information 315 to other WTRUs 310, this information system can be used by described AP 305.
The described information that must be transported to described WTRU 310 by described AP 305 is to depend on that described AP305 wants some scopes of the described rule executed.Next be operable general, but novel, the example of rule, and typically, the example of the described input parameter that described AP 305 must provide in order to make described WTRU 310 can carry out described rule.
That described first rule system has stated clearly is described (etc.) WTRU (s) 310 will accept is which WTRU.That this rule system tells is described (etc.) WTRU (s) 310, it should describedly will be set at its DT/EDT the highest possible numerical value, so that it can hear the WTRUs of a specific collection.Among an embodiment, described AP 305 is all WTRUs that described WTRUs set can be chosen as among the described BSS, this then means, described WTRUs 310 can be with their DT/EDT parameter setting for high as much as possible, but guarantee still that with the time they can hear all WTRUs in their BSS.
Among described preferred embodiment, the described WTRU 310 required described rules of following, and the tabulation of the described WTRU 310 required described WTRUs that accept system can be included among the single information, but among another embodiment, also be in two information of separating, to transport, in addition, described information is when the numerical value of the described parameter of decision, described WTRU 310 can also be stated clearly in system should a described tolerance (margin) M that will use, for example, if described WTRU 310 decisions its can hear all its neighbours' greatest measure be-during the DT/EDT of 85dBm, then the tolerance of a 3dBm just means, described WTRU 310 must be set at its DT/EDT parameter-and the 85dBm-tolerance=-88dBm.
This regular system can be summed up by following equation:
DT/EDT
WTRU＝min_function(max?DT/EDT
1，max?DT/EDT
2，...max?DT/EDT
N)-M
Equation (1)
Wherein, max DT/EDT
nBe to hear WTRU
nNeeded maximum DT/EDT, at this, n is a WTRU identification symbol, and the described tolerance of M system representative, these all numerical value are provided by described AP 305.
In addition, another preferable rule is to be that described WTRU 310 has been stated clearly its described WTRUs set that need be relied on by hearing, and this rule is to tell described WTRU 310, it should describedly will be set at its through-put power minimum possibility numerical value, will be heard by a certain set of WTRUs to guarantee it.
Among an embodiment, described AP 305 is all WTRUs that can the described WTRUs of decision set will be included among the described BSS, this then means, described WTRUs 310 can be set in minimum possible numerical value with their through-put power, can be heard by position all WTRUs in their BSS to guarantee it.
Among described preferred embodiment, the tabulation of described WTRU 310 required described rules of following and the required described WTRUs that accepts of described WTRU310 will be comprised among the single information, but among another embodiment, also be among two information of separating, to transport.Described information is to state clearly each employed described DT/EDT numerical value that described needs are heard the WTRUs of described WTRU 310, in addition, described information can also comprise a tolerance of described WTRU 310 described use of answering when the numerical value of the described transmission power parameters of decision, for example, if described WTRU 310 decisions, one power 8dBm system makes it can be stated clearly when providing all described WTRUs among the described tabulation of described AP 305 to hear, then a tolerance 3dBm will mean, described WTRU 310 can be set at 8dBm+ tolerance=11dBm with its through-put power, in addition, the described minimum transfer rate that described disengaging is not answered by described WTRU 310 institute in its rate of passing on Gong of reduction can also be stated clearly in described information system.
A summary can be done by following equation by this regular system:
Tx_Power
WTRU=max_function (min_function (min Tx_Power
1, minTx_Power
2... min Tx_Power
N)+M), min Tx_Power
RATE) equation
(2)
Wherein, min Tx_Power
i=WTRU
iDT/EDT+WTRU
iAnd the consume of the path between the WTRU, and min Tx_Power
RATEBe the minimum transmission power of reaching required transfer rate, and min Tx_Powern is by WTRU
nHear needed minimum transmission power, wherein, n is a WTRU identification symbol.
Though feature of the present utility model and assembly are to narrate with the preferred embodiment of special combination, but each feature or assembly also can use under the situation of further feature that does not need described preferred embodiment and assembly individually, or in conjunction with or do not use under the situation in conjunction with further feature of the present utility model and assembly.
Claims (4)
1. a WLAN that sends deferral management messages is characterized in that, comprising:
One access point, described access point comprises:
Be used to transmit one and delay the device that managerial ability requires information; And
Be used to transmit a device that delays the management parameters set information, be used to set the numerical value that delays management parameters with indication; And
A plurality of wireless transmission/receive units, and each wireless transmission/receive unit comprises:
Be used for delaying the device that delays managerial ability that managerial ability indicator information to described access point is reported described wireless transmission/receive unit, received the described managerial ability that delays with response and required information by transmitting one; And
Be used for delaying management parameters and set the device that the execution confirmation transfers to described access point, received the described management parameters set information that delays with response with one.
2. a WLAN that sends deferral management messages is characterized in that, comprising:
One access point, described access point comprises the device that is used to transmit a measurement requirement information, wherein, described information is to be used to indicate the measurement of which kind of kenel to be performed, and which delays management parameters and should be described will be used when collecting described desired measurement; And
A plurality of wireless transmission/receive units, and each wireless transmission/receive unit comprises and is used to the measurement report information of transmitting to the device of described access point, wherein said information is the result who is used to indicate described measurement, and which delays management parameters and has correctly to be used in and collect described measurement.
3. a WLAN that sends deferral management messages is characterized in that, comprising:
One access point, described access point comprise and are used to transmit a device that delays rule information that wherein said information states clearly in order to determine to delay the mandatory ad hoc rules of numerical value of management parameters; And
A plurality of wireless transmission/receive units, wherein each wireless transmission/receive unit comprises that being used for delaying rule with one carries out the device that confirmation transfers to described access point, and described information then is to have comprised owing to carry out the described actual value that delays management parameters that described ad hoc rules produced.
4. WLAN according to claim 3 is characterized in that, each wireless transmission/receive unit more comprises and is used for calculating the described device that delays the suitable numerical value of management parameters according to described ad hoc rules.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67367905P | 2005-04-21 | 2005-04-21 | |
| US60/673,679 | 2005-04-21 |
Publications (1)
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| DE (1) | DE202006006434U1 (en) |
| MY (1) | MY149351A (en) |
| TW (4) | TWI496433B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105191477A (en) * | 2013-05-03 | 2015-12-23 | 高通股份有限公司 | Systems and methods for reuse of a wireless medium for high efficiency WIFI |
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| TWI496433B (en) * | 2005-04-21 | 2015-08-11 | Interdigital Tech Corp | Wireless communication method and WLAN for transmitting delayed management information |
| US8644273B2 (en) * | 2009-07-01 | 2014-02-04 | Apple Inc. | Methods and apparatus for optimization of femtocell network management |
| JP6139015B2 (en) * | 2013-05-06 | 2017-05-31 | インテル コーポレイション | Technology to provide flexible clear channel evaluation detection threshold in wireless networks |
| US9763262B2 (en) * | 2013-11-01 | 2017-09-12 | Qualcomm Incorporated | Wireless communications deferral based on transmission opportunity |
| CN106538029B (en) | 2014-06-27 | 2020-10-16 | 泰科弗勒克斯公司 | Method and apparatus for transmitting data units |
| US9451563B2 (en) * | 2014-10-16 | 2016-09-20 | Qualcomm Incorporated | Techniques for energy detection level adjustments |
| US10349293B2 (en) | 2015-04-17 | 2019-07-09 | Qualcomm Incorporated | Control of UE clear channel assessment by an eNB |
| KR102555936B1 (en) * | 2020-12-29 | 2023-07-18 | 서울대학교산학협력단 | Transmission control apparatus and method through deep learning based-channel loss prediction |
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| US7027462B2 (en) * | 2001-01-02 | 2006-04-11 | At&T Corp. | Random medium access methods with backoff adaptation to traffic |
| US20020172186A1 (en) * | 2001-04-09 | 2002-11-21 | Peter Larsson | Instantaneous joint transmit power control and link adaptation for RTS/CTS based channel access |
| US7408907B2 (en) * | 2002-09-11 | 2008-08-05 | Cisco Technology, Inc. | System and method for management of a shared frequency band using client-specific management techniques |
| US20050048997A1 (en) * | 2003-09-02 | 2005-03-03 | Mike Grobler | Wireless connectivity module |
| TWI496433B (en) * | 2005-04-21 | 2015-08-11 | Interdigital Tech Corp | Wireless communication method and WLAN for transmitting delayed management information |
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- 2006-04-21 CN CNU2006200061218U patent/CN200947610Y/en not_active Expired - Lifetime
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105191477A (en) * | 2013-05-03 | 2015-12-23 | 高通股份有限公司 | Systems and methods for reuse of a wireless medium for high efficiency WIFI |
| CN105191477B (en) * | 2013-05-03 | 2019-08-27 | 高通股份有限公司 | System and method for reusing wireless medium to obtain high efficiency WIFI |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI496433B (en) | 2015-08-11 |
| TWI383619B (en) | 2013-01-21 |
| KR101482565B1 (en) | 2015-01-16 |
| KR20060110795A (en) | 2006-10-25 |
| TW201006179A (en) | 2010-02-01 |
| DE202006006434U1 (en) | 2006-11-02 |
| AR053856A1 (en) | 2007-05-23 |
| KR20140039246A (en) | 2014-04-01 |
| TWI387263B (en) | 2013-02-21 |
| KR20130090391A (en) | 2013-08-13 |
| TWM298284U (en) | 2006-09-21 |
| KR101521700B1 (en) | 2015-05-19 |
| MY149351A (en) | 2013-08-30 |
| TW201308938A (en) | 2013-02-16 |
| KR20120103536A (en) | 2012-09-19 |
| CN101164354A (en) | 2008-04-16 |
| AR071987A2 (en) | 2010-07-28 |
| KR101331720B1 (en) | 2013-11-21 |
| TW200704027A (en) | 2007-01-16 |
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