TWM298284U - Wireless local area network for signaling deferral management messages - Google Patents

Description

M298284 VIII. New description: [New technology field]

The present invention relates to a wireless local area network (WLAN), and more particularly, the present invention relates to implementing a deferred management information policy among WLANs. [Prior Art] A wireless local area network (WLAN), such as, but not limited to, an IEEE 802 WLAN, uses a carrier sense multiple access/collision avoidance (carrier_sense multiple) Access/collision avoidance, CSMA/CA) planning to share a wireless medium between wireless acknowledgments (WTRUs) (ie, mobile stations (STAs)) (wireless) Medium, WM), and this plan will force the WTRUs to sense whether the WM is idle or busy before transmitting a packet, and this is to use a clear channel assessment (CCA) function. And to perform, if a WTRU senses that the channel is busy (hereinafter, a WTRU hears another transmission), the WTRU cannot transmit its packet, and 'the tester wants to win the Before the competition of the channel, the system must wait until the k number is idle. 'This is called delay, and by avoiding two WTRUs that hear each other. Transmission, the CSMA / CA can plan to rank in the system which controls interference. 6 M298284 In a WLAN, a _AA Ding μ person &, the interference system will indirectly improve the system's month & knife 'as in the mother a Yi Lei, Cha Ru, u, ... spring The throughput achieved on the electrical connection is increased as the interference is reduced. In other words, the cost of avoiding simultaneous transmission of two nodes that are audible to each other on the same channel is due to the absence of $. f | ^, Zhang u, "The lack of spectrum channel resources to reuse, so it will be in multiple

SystemS, BSSS) uses the same ramp, , and ase station J 1 channel system, resulting in limited capacity. In the CSMA/CA system, _ WT 〇 TT θ WTPTT ΛΛ ^ ^ , whether the WTRU wants to obey a second

, ", 疋 (here, the established path of the second WTRU WTRU, the WMPTT) depends on two factors: (1)

The transmission power used by the selected i; and (2) the second WTRU :: uses: / delays the threshold, so by controlling the plant of these factors, the f system is likely to be controlled in one Delay in WLAN: # this force. Two key receive/delay thresholds are among the CCA functions of the WTRUS operating in CSMA/CA, 1 sun 焱, τ, 八, 匕 匕 detection threshold (energy detect Threshold, EDT), 苴 receives the signal power, and 最小 receives the minimum received DT of a packet ^ ( 2) 4 deferred threshold (the minimum received BBSs that are delayed by the transmission of the TM) Second, the good view would be 'in the common channel ((3)--1) w, the power, and/or the M298284 capability to increase the DT/EDT of Wtrxjs, therefore, the WTRUs from one of the BSSs are not Will listen to one of the other BSSs, and vice versa, but if the delay parameter = adjustment is performed separately at each WTRU without considering the effect of this adjustment on other WTRUs Then, there is a possibility that a problem arises. For example, if a WTRU excessively reduces its transmission power, it becomes impossible for the other wtrUs in the same BSS to pass through the EDT, or DT. Since then, WTRu has detected the signal and, possibly The case of hidden nodes (hidden n〇de) is generated, and the phenomenon of hidden nodes across BSSs may also occur, so: for the most appropriate proper operation, it will be necessary to cooperate between the Wei... # can collect all the required information at the node that determines the setting of the delay parameter' and the node can be the WTRU itself: or an access point associated with the WTRU (coffee...p〇int,Ap In the latter case, coordination may also be required to enable the μ to communicate the value of the optimal delay parameter with the WTRU (4) of interest. [New content] This creation is related to a WLAN. , 0 recognizes # i , .., LAN and in which the deferred management parameters are used by (w.reiess transmit/rece.ve units, WTRUs). Name WT Λ 丄 • Scared in 5 WLAN An access point (access = :AP) is sent - deferring management capability request information to the second: to determine the WTRUs' deferred management capabilities, such as maximum transmission rate, minimum transmission and/or dynamic range, minimum and Maximum DT/EDT, and no (four) CCA mode, In response, the wtrUs per M298284: ^ grammatical ability parameter setting information to the μ, and the WTRUs use the meal-delay management parameter setting information to the:: 2, used to set the value of the deferred management parameter, which includes The second is:: identification/construction time limit, and transmission power setting, and then venting - Ί wtrus each system can selectively send = delay (four) read settings to execute confirmation information to the ap, while in an alternative In the embodiment, the WTRUS may also set various delays, the number of values based on the specific rule specified in the information rule sent by the AP, and optionally, the WTRUs may borrow It is returned to Ap by the execution of the confirmation information of the real number of the delay (four) parameter generated by the execution of the rule. This creation is related to the use of the CSMA/CA-planned wireless system, for example, but not limited to, the IEEE 8〇2 family of standards, where the delay in the measurement of the government is in a coordinated-coordinated manner. Among all #WTRUs, while in medium and relatively large wireless systems, the deferred management strategy can increase the system's capabilities by more than 5%. Here, a special example of the application of this creation falls within the scope of the ieee 802.1W standard. This creation provides a mechanism for the WTRUs of a BSS to set their deferred management parameters using a coordinated approach, which will ultimately result in the deferred management policy being able to fully utilize the potential increase in capabilities that they can provide. M298284 [Embodiment] Although the features and components of this creation are described in the special society, each feature or component is also used. The preferred embodiment (when the other features of the preferred embodiment are not required for early use), or where combined with or without the present invention, is used. , his special desires and components: when mentioned later, the proper noun "WTRU" (user equipment, UE), #t, ^; ^ ^;; 'private user single A 'caller' or any Can: Γ:: its: type device, and, when mentioned later, proprietary ^ - not limited to '- ie, point B, - position controller, or any other interface that can be interfaced in the read environment Type is placed. U is in the system: a preferred embodiment for two implementations of deferred management. In the second embodiment, in the second embodiment, in the second embodiment, the WTRUs directly set the number of their WTRUs to communicate with each other. ^ It is the rule that will communicate with one of the two extended ones that it has to calculate and set the number of them. The deferred management parameters of the poisoned WTRUs can have two better signaling procedures in a different base-A P-capacity. The first type of pseudorange order enables the AP to indicate to the at least one WTRU the delay parameter used by the at least M298284 sequence, and the second type of signal transmission-Ap can be collected from at least the WTRU to be related to at least u The measurement of the decision to delay the parameter is used. 1 is a flow chart of a 5H-signal transmission procedure performed in a wireless communication system (eg, WLAN) 100, and wherein the wireless communication system includes, -Ap 1〇5, and a plurality of wtrUs, and each of the WTRUs lio and the Ap 1〇5 will include a receiver, a processor, and a transmitter (not shown), and the Ap 1〇5 system will send A deferred management capability request information 115 to a wtru, or a plurality of WTRUs, to report its deferred management capability, and the deferred management capability requirement k can be used as a broadcast, multicast, or unicast signal. The transmission is performed, and the delay management capability includes the following parameters: _ 1 ) WTRU WTRU transmission power, minimum transmission power, and/or dynamic range; 2) minimum dt/EDT and maximum WTRU can use DT/ED; and 3) different CCA (Clear Channel Assessment) modes supported by the WTRU. M298284: capability indicator information 120 may be by the (etc.) WTRU(S)

At the same time, as a response to the deferred management capability request sent by the AP 105, the deferred management capability indicator confidence Π80 may be attached to such a related request information, or Is another information related to the association/noon occupier's permission to manage the WTRUn's permission in the WLAN 100 (ass〇ciati〇n / admissi〇n sunny (4). 2. Delay management parameter setting information The 125 series will be sent from the Api〇5 to one or more of the f^VTRUs 110, and the delay management parameter setting 士二”25 will indicate which values are set for the delay of the management parameters. The delay management parameter setting information 125 can be transmitted as a broadcast, multicast, or unicast signal, and preferably includes the following information: user, 4:12 The identification of the WTRU's destination will be provided and the vehicle will be located. The identification will be a medium access control 'MAC' address. However, any other type of WTRU may be used. Ground identifier. 12 1) 4 One of the WTRUs delays the management parameter, which is required to be executed according to a delay management parameter setting 2 L interest, or both: the delay management parameter setting The information 125 can indicate the time limit for the construction that needs to be held. The time information can be shown as a low time form in the form M298284. The tlme offset, or absolute, and the value that the TM should take. So a) the transmission power setting during normal operation. (4), ", is not limited to, the aiming operation and measurement collection. C DT/EDT setting during normal operation. DT/EDT"^ ? 5 ', but not limited to, scan operation and measurement acceptance. e) (plural) CCA mode. $ ==Dear 1 shows the '-delay parameter Μ execution confirmation:, can be: selectively by the (etc.) TM(4)m; two-way: ::::=, at- The § hai construction system in the deferred management parameter setting letter has been held, and the selective nucleus, friend lyrics setting execution confirmation information 13 是 can be included in the delay management parameter setting information. Any such parameter specified, = 2 the delay parameter setting execution confirmation letter 与m is associated with the relative collateral 戍 戍 麦 彳 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 The setting execution confirmation information 13A indicates that the reason for the delay is that the AP 1Q5 can report the real parameter set according to the delay management: M298284 number setting information 125. For example, if the AP 105 system is When the WTRU 110 is commanded to set its transmit power to 〇dBm and its EDT is set to -75 dBm, it is possible that the WTRU 110 will reduce its EDT to -75 dBm, which also reduces its power, but The evil method is reduced to less than 13 dBm, in such an example The WTRU 110 may send a deferred management parameter setting execution confirmation message 13Q to indicate the construction achieved by providing information of the same type as the one found in the deferred management parameter setting information 125. The true setting. Figure 2 is a flow chart of the second signal transmitting procedure performed in a wireless communication system 2, and wherein the wireless communication system 2 (8) includes an AP 205 and a plurality of WTRUs 21 〇i_21〇n, and the wtrUs

Each of the 210 and the AP 1〇5 will include a receiver, a processor, and a transmitter (not shown), and the second signal transmitting procedure enables the AP 205 to be capable of being WTRU(4) 21〇. The measurement measurements collected for the delay parameter that should be used in determining the WTRU(4)2U) may include, but are not limited to: the signal strength of the associated received packet 1) the degree of the WTRU from other special wTRUs (or its average) . 2) - The amount of other Wtrs received by the WTRU and the overall duration. The number of scoop packets This signal transmission procedure will compensate for the delay in the normal operation period & I, the ability side 14 M298284 is the best delay management manager*

The number of gentlemen is in the WTRU 210, for example, during the scanning period, and the metric is to be tested, for example, the H g B % is the best. It may be necessary to increase the DT/EDT special _ y 之中 among the WTRUs 2 1 0 τ ap; the hang 刼 将 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , This DT is based on the loss of the WTRU 210's ability to occupy, occupy, and reduce the AP 205 is combined with -> -I in order to avoid such a loss, the gentleman does not, As part of a measurement requirement, which delays the number of management bundles when receiving and listing, should be used by the WTRU. As shown in Fig. 2, a measurement request message 215 is sent by the AP 205 to the (equal) wtru(s) 2i, and which is to be executed. The measurement of the type, and the delay, i = (for example, DT / EDT 'CCA mode, or the like) should be used in the measurement required by the harvest, and then a measurement report 220 Will be sent to the Ap 2〇5 by the WTRU(4) 21〇: the result of the two fingers not to be measured, and which delay management parameters (for example, DT/EDT' CCA mode, or the like) are correctly For collecting the reported measurements, where the information 215 and 22 can be used separately or together, and in addition, the delay management parameters used during the measurement can be different from the AP2〇5 The measurements require the second of the information 215 to utilize the measurements collected from the WTRUs 210 associated therewith, and the AP 205 can perform the calculations and determine the optimal delay parameters for each wtru 210, for example. a possible strategy is to set the WTRU 210 The EDT is set to the minimum signal strength (minus a margin) for the packets received by the WTRU 2 from the other WTRUs 21 () in the BSS of 15 M298284. As explained earlier, the deferred pipe has a need to use the collocation method to make the system fully profitable. The capacity gamma achieved by the deferred management can be hunted. Presented by = is the allowable-chest-direct way to actively determine the value of the 以及 and the 延 四 四 四 每 每 每 , , , , , , , , , , , , , , , , , , , , , , , , , , , , The deferred management parameter setting for each person will be the same because they are calculated at the determined position (ie, the Ap), and on the other hand, the plan based on the second is based on the fact that the AP Will be measured from the WTRUs === and signaled, for example, for a $2 TRr such that the TM will not listen to - the established co-channel ^ ΑΡ ❿ the value of the DTEDT should be used, ^ may Need to decide that the WTRU receives from the extra

The signal strength of the packet. U::!, the replacement of the required signalling amount in the system to achieve this value of the cutting parameters, but: their delay management or project 丨1丄... The guidelines that WiKUs must follow, Management ML ° ", a plan is provided between each delay and the use of the delay between the rationality, while also allowing the "minus = 16 M298284 between the 4 WTRU and the AP - Some signals are sent. 2 is a diagram showing a signal transmission sequence performed in a wireless communication system 300, wherein the wireless communication system 300 includes an AP 305 and a plurality of WTRUs 310] - 31〇N, and the WTRUs 31〇 Each of the AI AP 3 05 will include a receiver, a processor, and a transmitter (not shown that the AP 305 will send a deferred management rule information 315 to ^) a WTRU 3 10, and Wherein, it is a special rule that the WTRU3 10 must follow in order for the user to delay the management parameter, optionally, in accordance with the rules that have been sent according to the AP 305. After deferring the appropriate setting of the deferred management parameter, the 3 1 system may be executed by a deferred management rule containing the (or) real value of the (or the like) delaying the number of the official parameters generated by the execution of the rule. The confirmation message 320 is returned to the AP 3〇5, and, contiguously, when the deferred management rule information 315 is sent to the other WTRUs 31, this information can be used by the AP 300. The information that must be transported to the WTRU 31 by the AP 305 is dependent on some range of the rules that the AP 305 would like to enforce. The following is a general, but novel, ruled example that can be used, and typically an instance of the input parameter that the AP 305 must provide in order for the WTRU 31 to perform the rule. The first rule sets out which WTRU the WTRU(s) 31 is listening to. This rule tells the (etc.) WTRU(s) 31 that its 17 M298284 should set its DT/EDT to the highest possible value so that it can hear a particular set of WTRUs. In an embodiment, the AP 305 may select the set of WTRUs as all WTRUs in the BSS, and this means that the WTRUs 3 10 will set their DT/EDT parameters as possible. High, but at the same time still ensure that they can hear all the WTRUs in their BSS. In the preferred embodiment, the rules that the WTRU 310 needs to follow, and the list of WTRUs that the WTRU 310 needs to listen to, may be included in a single message, but in another embodiment Among them, it can also be carried in two separate pieces of information. In addition, when determining the value of the parameter, the information can also indicate a margin that the WTRU 310 should use, for example. If the WTRU 3 10 decides that it can hear DT/EDT with a maximum value of -85 dBm for all its neighbors, a tolerance of _3 dBm means that the WTRU 310 will have to have its DT/EDT The parameter is set to -85dBm - tolerance = -88dBm 〇 This rule can be summarized by the following equation: DT / EDTwtru = min_function (max DT / EDT bu max DT / EDT2, ... max DT / EDTN) - Μ Equation (1) 18 M298284, where 'max DT/EDTn is the maximum tT/EDT required to hear the WTRUn, where n is a WTRU identifier and the M system represents the difference and all of these values It is all provided by this. In addition, another preferred rule is to indicate to the WTRU 31 the set of WTRUs on which it is required to be heard, and the rule is to inform the WTRU that it should set its transmission power to The lowest possible value, φ, is to ensure that it will be heard by a certain set of WTRUs. In a consistent application, the AP 3〇5 will determine all WTRUs in the set of WTRUs to be included in the 4 BSS, and this means that the WTRUs 3 10 will set their transmission power to a minimum. Possible values to ensure that they can be heard by all wtrUs located in their BSS. Among the four car yoke yokes, the rules that the WTRU needs to follow • and the list of WTRUS that the WTRU 310 needs to listen to will be included in a single message, but in another In one embodiment, the shipment is also carried out among two separate pieces of information. The information may also indicate the dt/edt value used by each of the WTRUs that need to hear the WTRU 3 10, and the information may also include the WTRU 3ι when determining the value of the transmission power parameter. A tolerance used, for example, if the WTRU 310 determines that a power of 8 dBm is such that it can be received by all of the WTRUs in the list of APs 305, then A tolerance of 3 dBm will mean that the WTRU 31 will set its 19 M298284 transmission power to 8 dBm + tolerance of 11 dBm. In addition, the information can also indicate that the WTRU 3 10 is reducing its transmit power. The minimum transmission rate that should not be detached at the same time. This rule can be summarized by the following equation:

Tx_PowerWTRU = max_function(min_fimction( min Tx_Power],min Tx—Power2, min Tx—PowerN) +M),min

Tx—PowerRATE) Equation (2)

Where min TxJPoweri = WTRU/DTT + WTRUi and path loss between WTRUs, and min Tx_PowerRATE is the minimum transmission power to achieve the required transmission rate, and min Tx_Powern is the minimum transmission power required by WTRUn to hear, Where η is a WTRU identifier. Although the features and elements of the present invention have been described in terms of a preferred combination of specific embodiments, each of the features or elements can be used separately without the need for other features and elements of the preferred embodiment. , or in combination with or without the other features and components of the creation. 20 M298284 [Simple description of the schema] The explanation of this creation can be explained by using and relating to the attached diagram. Figure 1 shows that it is strictly based on this creation. Eight... delay the official signal transmission program spoon "谠 迗 迗 ^ 图 , , , , , , , , , , , , , , , , , , , , , , ,

The following is obtained by way of example, the delay parameters used by several WTRUs; Figure 2: shows a signal transmission flow diagram used during WTRU measurement according to the present invention, a delay management signal transmission procedure; Figure 3: It shows the 4s transmission flow chart of the management signal transmission procedure according to one of the creations, and in the shoe skins, at least one of the WTRU's management rules is It is defined by the AP by B. 21 M298284 [Main Component Symbol Description] 100, 200, 300 Wireless Communication System 105, 205, 305 Access Point (AP) 110, 210, 310 WTRU 115 Delay Management Capability Request Information 120 Deferred Management Capability The indicator information 125 delays the management parameter setting information 130 the delay management parameter setting execution confirmation information 215 the measurement request information 220 the measurement report information 315 the deferred management rule information 320 the deferred management rule execution confirmation information

twenty two

Claims (1)

M298284 IX. Patent application scope: 1. A wireless local area network, comprising: an access point, the access point comprises: a device for transmitting a delay to manage capability requirement information; and for transmitting a delay management parameter Device for setting information: delaying the value of the management parameter; using & ... square, - several hot wire transfer/receiving units, and each wireless transmission/reception unit package for hunting by the transmission - deferring management capability indicator information The delay management of the transmission line/receiving unit of the access point to the access point shall receive the information of the deferred management capability request; and the return to use a deferred management parameter setting to execute the stone identification information to the point. The device, in response to receiving the deferred management parameter setting information /=· as described in the wireless local area network described in item i of the patent application scope, the deferred management capability indicated by the capability indicator information includes a maximum transmission power of the receiving unit, The WTRU is: small transmission, and the dynamic range τ of the WTRU. Y Dan 3·If you apply for the patent scope, item 1 of the helmet management department, the six-button-A# *仏北's Xi line S-domain network, which should delay the management ability Including, at least one of the minimum μ heat from, the small and the large delay threshold/detection threshold that can be used by the spring transmission/reception unit. b 23 M298284 4·such as the scope of the patent scope of the application, the management capacity indicator _ •, household, 匕 < the bad line area network, wherein the extension transmission / receiving unit ° 2 indicates the delay management ability This unsupported different idle channel evaluation mode is included. 5. If the scope of the patent application is 1, the management parameter setting (4), the wireless local area network, the wireless transmission wheel that arrives in the delay: the slow: a media access scheduled by the parameter setting information Control address. 6 二 申 2 2 2 2 2 2 2 2 2 2 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 无线 无线 无线 无线In g, the number 5 is also determined to include the parameters including the transmission power setting. The wireless local area network as described in claim 1, wherein the delay parameter setting information includes a parameter including a delay threshold/energy detection threshold setting. The wireless local area network as described in claim 1 of the scope of the patent application, wherein the extension and friend information setting information includes at least one type of idle channel evaluation mode parameter. 24 M298284 1 〇· Kind of line area network, including ·· - access point, the access point includes, where the information is used to indicate which: the energy pack and which delay management parameters should be Receiving;: measuring: to be executed, used; and the measurement required by the wood is used by multiple wireless transmission/reception for transmission, gf曰4 mother------------------------ Reporting the information to the access point is strong: the interest is used to indicate the result of the measurement, and the reason::: is used to collect the measurement. A wireless local area network includes: an access point, the access point includes a means for transmitting, wherein the information specifies a specific rule to be followed in order to determine the information; And the value of the number must == transmission/receiving unit' where each WTRU will delay the management rule execution confirmation message to the access point: second, the information is included due to execution The true value of the 4 k slow management parameter generated by this particular rule. 25