TWM299416U - Apparatus for coordinating the management of loud packets used to estimate path loss - Google Patents

Description

M299416 IX. Creation Description: The technical field to which the creation belongs, this _ is a kind of non-information (for example: - scalar area network (hereinafter referred to as WLAN)), which includes multiple wireless transmission/reception units (below) Referred to as WTRUsX: mobile station). This creation is particularly directed to a device for generating loud packets to estimate path loss between WTRUs. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , In the system, WTRUs determine when to attempt to receive and transmit packets based on the received signal strength transmitted from WTRUs that are adjacent to the same channel. By avoiding simultaneous transmission, multiple WTRUs can avoid mutual interference when sharing the same channel. i Some key parameters, such as the energy side threshold (EDT) and the delay threshold (hereinafter referred to as DT), are typically used by WTRu to determine when to send or receive a packet, and the leg is an attempt Receive a minimum received power of the number, and DT indicates that the MRU transmits a

The minimum received signal power that the packet will delay, the DT value may or may not be the same as the EDT value. Although the basic concept of CSMA/CA is very clear, compared to the maximum capacity of 6 M299416, there are certain conditions that lead to excessive reduction in capacity, for example

Transmitters (with different receive_messages) can be transmitted simultaneously without being noticed, interfering with each other, but since they listen to each other with values higher than the EDT and/or OT of the day, they will not transmit. This will result in wasted capacity, and if any of the following actions occur, these are: /, ta) The WTRUs reduce their transmission power so that the WTRUs cannot listen to each other more than Η) and/or DT , but still communicate with its individual counterparts at the best data rate; b) the WTRUs increase their EDT and/or DT so that the signal from the other party will be below its threshold; or c) combine a) and b). A technique that is determined by a node or system and sets the above parameters (transmission power, EDT, DT) will be referred to as delay management hereinafter. If wt she knows the path loss between each other and the £1) or DT value used by other WTRUs, it would be helpful to set these parameters appropriately. These messages will cause the WTRU (or other A node, such as an access point (hereinafter _AP) that controls certain parameters of the WTRU, can predict that the transmission at a particular level would result in a received signal above or below the EDT value of a given neighboring WTRU. It will be used in algorithms that help optimize capacity. Obtaining the path loss _ can also be used to determine the positioning aspect. The WTRU's location can be estimated using the path loss setting between the WTRUs and the location of several fixed WTRUs (typically Aps) 7 M299416 or grid points (MPs in the mesh network). This estimate may be performed by a node (which may or may not be a WTRU) collecting path loss estimates from one or more different WTRUs. Therefore, there is a need for a device in which the WTRU can reliably estimate its path loss to other WTRUs. An unambiguous way to estimate the path loss between the first WTRU and the first WTRU adjacent to the first WTRU is to subtract the first WTRU from the second WTRU. The received power perceived by the transmission power is assumed to be that the first WTRU may determine that the second WTRU transmits the signal power measured by the first WTRU. The following are factors that cannot be achieved under the current state of the WTRU technology: 1) In the setting of the transmission power of APs, WTRUs and MPs in this field, 'WLANs are the owner and do not communicate with other WTRUs, for example, 'existing 8〇2.llh/8〇2.i!k transmission The power control (hereinafter referred to as Tpc) mechanism only forces the maximum transmission power setting of the basic service set (hereinafter referred to as BSS), and its sub-amount cannot exceed this value for the purpose of adjustment. It must be understood that any WTRU will vary the transmission power at the maximum of the mandatory limit, rather than communicating with its internal owner to determine the transmission power to other WTRUs, APs or MPs. 8 M299416 2) The transmission power used by the WTRU may vary on a packet basis. This means that in order for the first WTRU to estimate the path loss of the second wTRU separated from it, the first WTRU needs to receive the packet from the second stomach milk, whereby the power to transmit the packet will be within the packet. Instructions. In the above example, signal transmission such as the transmission of the (4) packet is allowed, and only the purchased TPC request/TPC report frame exchange mechanism is required, and it requires a dedicated two-way signal transmission exchange and cannot be set indefinitely. In addition, the 'g TPC request/report cannot be sent to WTRUs located outside of Bss. The purpose of the WTRUs is to listen to the number of ingested and dT leg teas so that they can increase the capacity of the system without generating a hidden state in the system's Bsss, which requires a different piece of W. Path loss to WTRUs. ^ In many cases, the WTRU may not be listening to the second. This is because the second TM1 is likely to use battery management technology or delay technology in a lower-than-maximum power. This happens. In the case where the WTRU aims to delay its management parameters, it must be that it may be necessary

Estimate the WTRUs' paths and fingerprints, that is, broadcast and aA any party/". There is no way for the WTRU nodes to order another muscle contact node to use the power: or even directly manage The use of specific transmission power, and === 9 M299416 mentioned in the previous article of the big bar tree = the lack of this mechanism after the question about the mechanism), it can be explained that the path loss estimation between / does cause some problems. In some cases, the confederation forces the WTRUs to assume that the transmission power of one side near wtru is different between different WTRU manufacturers, which is not very accurate, and there is a transmission power that can be close to the maximum value of V/TRU. In other examples, the mechanism can completely prevent the path estimation between two WTRUs from occurring. The second "r authoring content is created in a wireless communication system (eg, WLAN), which includes multiple WTRus And a coordinating node (e.g., an access point (Ap)). A first WTRU of the WTRUs transmits a loud packet to a first WTRU of the WTRUs. The coordinating node transmits a loud packet generation request message The first WTRU of the WTRUs receives The loud packet generates a request message and transmits at least one loud packet on the transmission power specified by the loud packet generation request message. Optionally, the first WTRU transmits a loud packet to generate a response message. The second WTRU receives the loud packet and determines a path loss between the first WTRU and the second WTRU, which is subtracted from the signal strength of the loud packet by the transmission power determined by the loud packet. The embodiment is referred to hereinafter as "WTRU", which includes but is not limited to, a user equipment (UE), a mobile station, a fixed or mobile subscriber unit, a pager, or M299416 is any other service - No point (AP), which includes but is not limited to, Tian, she went to the access platform, or any of his _ _ performance, g platform control benefits, base / / he is in the hotline communication environment Interface device in the middle. In the =: two money can be seen as any money _ coffee (for example: a dirty WLAN system), one station (Ap or any non-established basic service set (hereinafter referred to as IBSS) or - (BSS) any node ten / basic Wooden structure

Ap, or network 2 & grid-in-mesh network, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In the circuit of the interconnect component. == For example - the WTRUS is considered to be "loud packet" on time - high transmission power upload). The packet transmission power value is known to other WTRUs. These loud = fixed TM or gift (four), and can be simply received by the two-member rate - the group WTRUS. A neighboring WTRU that needs to calculate the path loss estimate of the transmitted WTRU and the WTRU may be easily hunted by the (4) loud packet subscription, and the transmission power of the scale packet is indicated or known. According to the wire, the road #loss estimate can be obtained by using the following equation. # M299416, path loss (dBb loud packet transmission power (dBm) - the received signal strength of the loud packet (dBm) Equation (1) is also the same - the transmission power of the 4 large I packet is indicated in the information field in the loud packet. Alternatively, the transmission power may be periodically broadcast by Ap, after being connected to the AP. Immediately indicate that each of the ribs, or as part of the other signal transmission exchange, is transmitted to the WTRU. In this case, there is a Wei block in the loud envelope to inform the WTRU that it is a large The packet is not shown as a general packet. Preferably, the transmission power of the loud packet should be the maximum transmission power of the WTRU transmitting the loud packet, which ensures the maximum possible fine reception of the offer packet. And the most reliable estimate, however, this is not necessary It is worth noting that other packets of non-album packets can be transmitted on the low-recorded location to balance the parameters of other systems. An identifier of the WTRU transmitting the loud packet (eg, · MAC address) should also Included in the information block so that the receiving WTRUs know which WTRU the path corresponds to. Or the 'loud packet can be implemented by any existing signalling frame, which is selected by the transmitter. A transmission power is transmitted, and the transmission power is also known by the receiver. For example, the transmission power can be known by the receiver via an information element (IE) attached or mounted in an existing signal transmission frame. M299416 or 'The loud packet knows that the transmission can be made by the receiver before the money and the part of the L-passer of the X-sender of the loud packet. The advantage of the shell%' The beacon/probe response frame is used as a loud packet, and the individual transmission power can be the beacon/probe request frame itself, or the transmission of the first consent, the rhyme by other devices Communicate with far WTRUs, It is a neighboring information signal transmission. The big ear packet can be used as an elastic reporting mechanism to help the receiving muscle optimize its parameters (transmission power, EDT, DT). The following parameters can be used to transmit the WTRU (shipper) Report (except that the WTRU identifier and the loud packet know the transmission power 'or if needed' as a single-machine signal transmission): 1) In the BSS of the basic architecture, the Ap is connected to the address or identifier of the wtru (and/or the BSS, IBSS, or Grid Identifier) 2) The power used to transmit packets that are not loud packets. 3) The path loss estimate table that is known to the sender and other WTRUs. The receiver receives the packet signal strength (or average signal strength) table (per WTRU - value) from other WTRUs. 5) The sender receives a total packet performance schedule (per WTRU - value) from other WTRUs for a certain amount of time. )by. Used by the sender, or the sender knows the EDT for other WTRUs. M299416 WTRUs == A_ The sender is known about the other or the sender is known about 8) the DT used by the sender to transmit a packet to other WTKXJs. ^ Limit the amount of money-like money Wei _, loud packet can be

In, knowing... or 疋官理魏). In this case, the positive packet should be transmitted on the identification of the loud packet. The round-up loud packet* needs to be performed in the WTRUS, however, it may be necessary to have this transmission available to the coordinating node in some extensions. Blood ^ also the AP should play in the corner of the coordination node in the infrastructure BSS, ί ° generated by the -_ node butterfly loud packet, will have the minimum effect = advantage 'the end of the system is made in the system It depends on the specific delay management or positioning technology. The figure shows a signal stream_, wherein the loud packet is transmitted from a point 105 to one or more WTRUs in a wireless communication system. This creative configuration. The management of the loud packet transmission can be achieved using the coordinating node 1 〇 5 (e.g., _ _ ΑΡ) transmitting a signal ^ to transmit a loud packet - or a plurality of WTRUs 11 。. Signal transmission of this type can be implemented by the following means, by the coordination node 1〇5.

M299416 A voice packet generates a request message 115 to the WTRU (S) 11G. Then, the loud packet generation request message 115 can be broadcast to all WTRUs 110 (e.g., all wtrUs of the BSS), or f early-broadcast messages, under the control of the coordinating node 1G5. The loud packet generation request message 115 can also be added. In the case of a cow, the existing ffiEE 8〇2 signal is exchanged, such as in the frame of the association/authentication or approval control program. 2 In the loud packet generation request message 115, one or more of the information: U is used for the transmission power of the loud packet. 3)) The Wei of the I report in the ear packet (in the possible interception of the upper touch). The sound envelope (four) sequence, there are several kinds of transitions, which contain a number of timings (for example: one) in the window between a large scale and a (four) package. m) After compliance-specific conditions (triggering), for example: a) Transmission of packet detection by a new WTRU: or threshold I. In a specific period of time, the number of packets retransmitted by more than one tex is recorded in the specific day. The number of digits recorded is more than one special. 15 M299416 All but the non-receiving WTRUs are excluded. Receiving the wtru(8) of the money-making information 115, you can select the taxi response - the loud packet generates the response message 120, as shown in Figure 1. The big ear packet generates a response message indicating that the wtru will be used to transmit the transmission power of the loud packet (if not specified in the request message, or if different from U) 'if the transmission power of the loud packet is not This is very useful when referring to f in the loud packet. In the embodiment - the loud block is generated in the - loud packet - in the block, so the loud packet generation request message can be used by the WTRU to estimate its path loss to other WTRUs. In the other way, the above-mentioned coordinated management methods are different, and she can decide when to transmit the loud packet and what kind of resource hole must be reported in the towel. This is a prior agreement by WTRUs that follow a particular standard. f, by allowing any WTRU (not just the coordinating node) to send: a loud packet to generate a request message to other WTRUs, such a mechanism may be used for point-to-point and mesh systems.

The above is applicable to WTRUs using simple antennas (ie, multi-line WTRUs, to support intelligent beam or beam antennas), it is useful to include some additional information in the big M299416 packet: 1 ) The antenna wire used to transmit the WTR_ of the loud packet, (this can be specified in the request message for the loud packet generation of the coordination node). The path loss between the first/the WTRU and the second WTRU depends on the antenna beam used. If the WTRU transmitting the loud packet can use a different antenna beam, the receiving WTRU should know what to use. Which antenna beam is used to transmit the loud packet so that it knows which path loss measurement is associated with the day line beam. = Antenna beam made by the WTRU that wants to transmit a packet that is not a loud packet. The reciprocal delaying algorithm must know this information in order to properly set the parameters of the receiving WTRUs (e.g., delay the homing value). 3) The antenna beam used by the WTRU that is to receive the packet. This is the antenna beam used by the WTRU transmitting the loud packet instead of the WTRU receiving the loud packet. Therefore, the WTRU transmitting the loud packet notifies other WTRUs that it may use and whenever it receives a packet. A specific day and line beam that is currently used to transmit different antenna beams of the loud packet. This information is useful for other WTRUs so that they can know if the transmission on a particular power will cause a delay on the WTRU. Figure 2 is a block diagram of a wireless communication system 200 including a plurality of WTRUs 205, 2052 that transmit and receive loud packets using smart antennas 222, 242, respectively, in accordance with the present teachings. The WTRU includes a 17 M299416 state 210, a transmission state 215, and a receiver 220, the WTRU 2052 including a processing benefit 225, a transmitter 23A, and a receiver 235. The processor 21 〇 and 225 of the WTRUS 205 are configured to generate a loud packet, a loud packet generation request message 115, and optionally a loud packet generation response message 120, respectively, via transmitters 215 and 23, and The smart antennas 222, 242 are transmitted. In addition, each of the receivers 220, 235 of the WTRUs 2〇5 is configured to receive a loud packet, a loud packet generation request message η5, and a money packet generation response message 12〇 via the wisdom Antennas 222, 242 receive and are then processed by the processors 210, 225. By using the 3 loud packet information, the babies 205 receiving the loud packet can determine that the WTRUs 2 〇 5 use each of the smart antennas 222, 242 to transmit and receive the path of the loud packet. loss. It is necessary that the noon loss of the noon includes the gain due to the transmission/reception antenna, and the different beams _ receive and transmit different loud packets. : Figure is a program flow diagram for estimating the path loss between two WTRUs/in accordance with one embodiment of the present invention. The program is implemented in a wireless communication system, such as system 200 in Fig. 2, which includes ^ and gift U 2052. A first WTRU2_ loses a large amount of packets. - The second TM1 2〇52 receives the loud packet (step '" the signal strength (dB) of the heart-sending loud packet (step 315) to 18 M299416

Acoustic seal (4) transmission lie (for example, obtained by transmission power from the tree, or by silk from - loud packet ^ i, 'which refers to what transmission power is used for reading) (step ° = WTRU 2052 determines that the WTRU 2〇5] and the WTRU's east, = path are also lost, and the signal strength is determined by subtracting the signal strength determined in step 315 by the transmission power determined in step 320 (step 325). Figure 4 shows the procedure for estimating the WTRU's path loss, which is based on the information contained in the -coordination node. Another embodiment of the present invention is that the program 400 is implemented in a wireless communication system, such as the first (the system of the figure, the f system includes a coordination node 105 and a plurality of WTRUs 11 〇 i_11 〇 n. The coordination node 150 transmits The round-loud packet generates a request message (step 405). One of the WTRUs 110 receives the loud packet generation request message (step 410). In an optional step 415, the first wtru is Send a loud packet to generate a response message that should be loud The packet generates a request message. In step 420, the first WTRU transmits at least one loud packet containing information specific to the request packet generated by the loud packet. In step 425, the WTRUs 110 one of the second WTRUs Receiving the at least one packet and determining the signal strength (dB) of the received loud packet (step 430), and determining the receiving loud seal according to the information included in the loud packet

The transmission power (dB) of the packet (step 435). In step 440, the second WTRU determines a path loss between the first WTRU and the second WTRU, which is determined by the transmission power determined in step 435 minus 19 in step 4 3 M299416 determines the signal strength. Figure 5 shows the procedure for estimating the path loss between two WTRUs. The flow chart of the flow is generated from the loud packet transmitted by a third party, which is based on the creation. Again - examples. One of the plurality of WTRUs - the _ WT_ loses a loud packet to generate a request message

(Steps in the wTRUs - the second WTRU receives the loud packet a packet to generate the request money (step). In the optional step 515, the second WTRU responds by transmitting a message - a loud packet The request message is generated in a loud manner. In the step, the second asset transmits at least a loud packet according to the state specified by the loud packet generation request message (for example, transmitting on the specific transmission power, in the shape) Time transmission, using one of the smart antennas, specific antenna beam transmission, etc.) In step 525, one of the WTRUs receives the at least one loud packet, and determines the transmission power (dB) of the received loud packet. (Step 535). In step 54, the third WTRU determines a path loss between the second WTRU and the third WTRU, which is subtracted from the transmission power determined in step 535 at step 530. The determined signal strength is determined. In conventional wireless communication systems, the path loss estimate to the neighboring WTRU is limited by a considerable amount of uncertainty due to the lack of information about the transmission power of the neighboring WTRU. One W The TRU knows that the sender of the power of a given packet is the TCP request/report, which requires dedicated bidirectional signaling and cannot be set periodically. This problem has been solved by 20 M299416. Or other means to indicate the transmission power to be solved. In addition, in the conventional wireless communication system, if the WTRU# is read at a far lower reading level (four) rate, there is no change to it - a wide area The WTHUs are listening 'this also makes the axis miscalculation impossible to perform. It must be noted that in the case of TM helping to detect the sneak _, the WTRU needs to estimate its pinch loss with the neighboring WTRUS even if the WTRU Φ 纟 current Thermal monitoring under transmission power. This creation also solves this problem.

Moreover, in conventional wireless communication systems, where the WTRUS does not participate in the same BSS (in the case of a month, the WTRU cannot correctly estimate the path loss with the neighboring WTRU. This creation generates a loud packet by controlling the WTRUs) A method for solving this problem is provided. Finally, the path loss estimation of the WTRUs equipped with smart antennas is not supported in the 4-way line communication system, and the present invention supports the inner WTRU path loss estimation when the WTRUs are equipped with smart antennas. The features and elements of the present invention are described in a particular combination in the embodiments, but each feature or element in the embodiments can be used alone, without the need to be combined with other features or elements of the more beading method. Or a combination of other features and components of the present invention, or a combination of other features and elements of the present invention, although the present invention has been described in the preferred embodiments, other variations that do not depart from the scope of the present invention are still applicable to those skilled in the art. Obvious. 21

WIRELESS TRANSMISSION/RECEPTION UNITS WIRELESS COMMUNICATION SYSTEM WIRELESS COMMUNICATION SYSTEM M299416 BRIEF DESCRIPTION OF THE DRAWINGS By way of illustration of the preferred embodiment below, the present invention refers to the pair and refers to the pair =: a signal flow diagram according to the present configuration. , wherein, in the hotline communication system, (9), according to the present invention, the plurality of WTRUs according to the present invention: a block diagram of a smart antenna for transmitting and receiving a loud packet; Figure 3 shows a program flow diagram based on the present example, which is used to estimate the path loss between two WTRUs; and Λ a Figure 4 shows a program flow diagram, which is rooted For example, based on the information contained in the large-consistent information transmitted by the -coordination node, estimating the ____, and the 7F of the two WTRUs is a program flow chart. According to the present example of the present invention, it is estimated that the WTRU 100 200 300, the WTRU 100 200 300, is based on the state specified by the loud slogan and the suffix transmitted by the third WTRU. 4〇〇Program 22

Claims (1)

M299416 X. Patent Application Range: 1. A device for coordinating loud packet management to estimate path loss, comprising: a coordination node, comprising: a first processor, configured to generate a loud packet generation request message And a first transmitter coupled to the first processor, the first transmitter configured to transmit the loud packet generation request message; and a plurality of wireless transmission/reception units through the wireless medium and the Coordinating node communication, wherein a first one of the plurality of wireless transmission/reception units comprises: a first receiver configured to receive the loud packet generation request message; a second transmitter Configuring to transmit at least one loud packet; and a second processor electrically coupled to the receiver and the transmitter, wherein the second processor controls the second transmitter to generate a request message using the loud packet Dedicating a transmission power to transmit the at least one voice packet, and wherein a second one of the plurality of wireless transmission/reception units transmits/receives The element includes: a second receiver configured to receive the at least one loud packet; and a third processor configured to determine a signal strength of the received loud packet and determine the received loud packet A path loss between the first no 23 M299416 ^ line transmission/reception unit and the second WTRU is determined by a transmission power and by the determined transmission power minus the determined signal strength. 2. The device of claim 1, wherein the coordination node is an access point. 3. The device of claim 1, wherein the second transmitter is configured to transmit a loud packet to generate a response message when the first transmitter receives the loud packet generation request message. 4. The device of claim 3, wherein the loud packet generation message indicates that the first WTRU is to transmit the transmission power of the loud packet. 5. An apparatus for coordinating loud packet management to estimate path loss, comprising: a coordination node, comprising: a first processor for generating a loud packet generation request message; and a first transmission And coupled to the first processor, the first transmission device is configured to transmit the loud packet generation request message; and a plurality of wireless transmission/reception units communicate with the coordination node via a wireless medium, The first wireless transmission/reception unit of the plurality of wireless transmission/reception units includes: a first receiver configured to receive the loud packet generation request message; a second transmitter configured to be in the The loud packet generates at least one loud packet for a time specified by the request message; and 24 M299416 is coupled to the receiver and the transmitter, and the second processor, wherein the first processor controls the port The specified by the port request message is transmitted by the loud packet to generate the plurality of wireless transmissions/捿1 elements including: to receive a second wireless transmission/connection in the early π Brother and a single receiver configured Kawasaki _ at least one loud packet; third processor ^ 4 — Its configuration to determine the strength of the signal received by the loud packet, the transmission power of the loud packet received, and the decision of the lining. The energy intensity of the money reduced by f is determined by the first-wireless transmission/=7〇# material-scale transmission wheel/new unit n path loss. 6. The installation as described in item 5 of the patent application is an access point. Set, which should be the coordination section! 7. If the patent application scope 5th transmission/reception unit generates a request message by passing the _ packet. The device of the item, wherein the first wireless transmission of the voice packet generates a response message that should be louder. 8. The patented scope response message indicates the transmission power of the first voice packet. The device of item 5, wherein the loud packet is generated by a wireless transmission/reception unit for transmitting the large 25