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公开(公告)号:EP3310105A4
公开(公告)日:2018-05-23
申请号:EP15895403
申请日:2015-10-14
申请人: HUAWEI TECH CO LTD
CPC分类号: H04W28/00 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/0053 , H04L5/0094 , H04L27/2602
摘要: Embodiments of the present invention provide a resource scheduling method, which can support reduction of transmission resource overheads in resource scheduling. The method is applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units possibly allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence are to indicate whether one or more of said resource unit locations possibly allocated for the to-be-assigned frequency domain resource is\are the actually allocated resource unit(s).
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公开(公告)号:EP3301963A4
公开(公告)日:2018-05-02
申请号:EP15896839
申请日:2015-07-02
申请人: HUAWEI TECH CO LTD
CPC分类号: H04W24/10 , H04L1/1607 , H04W84/12
摘要: Embodiments of the present invention provide a method, an access point, and a station for transmitting channel state information. The method includes: receiving, by a station, a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message that are sent by an access point; and when it is determined that the station belongs to target stations, feeding back an acknowledgement message to the access point by using a communication resource indicated by the resource scheduling message. The feedback indication message is used to indicate at least two target STAs that need to feed back channel state information to the AP, and the high-efficiency long training sequence is used to determine channel state information of the STA. In the embodiments of the present invention, an acknowledgement message is fed back to an access point. In this way, resource waste caused when some stations cannot immediately perform feedback can be avoided, and channel state information transmission efficiency can be improved.
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3.
公开(公告)号:EP3200491A4
公开(公告)日:2017-10-11
申请号:EP15875180
申请日:2015-12-25
申请人: HUAWEI TECH CO LTD
发明人: GUO YUCHEN , YANG XUN , LOC PETER , LIN MEILU , LI YANCHUN
CPC分类号: H04W76/021 , H04L63/083 , H04W12/06 , H04W28/06 , H04W74/0816 , H04W84/12
摘要: Embodiments of the present invention provide a method for establishing a communication connection between a STA and an access point. The method includes: receiving, by the AP, request frames sent by N STAs to the AP, where N is a natural number greater than or equal to 2; and after the AP receives the request frames sent by the N STAs, contending for a channel by the AP and sending one response frame to M STAs, where the response frame includes identifiers of the M STAs and M responses to the M STAs, each of the identifiers of the M STAs corresponds to one of the M responses, and the M identifiers and the M responses are used to instruct the M STAs to receive respective responses from the response frame sent by the AP, M is a natural number, and 2‰¤M‰¤N. By using the method, authentication response frames or association response frames for multiple STAs may be sent in one frame, thereby saving downlink resources.
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4.
公开(公告)号:EP3267755A4
公开(公告)日:2018-05-30
申请号:EP15885908
申请日:2015-04-17
申请人: HUAWEI TECH CO LTD
发明人: GUO YUCHEN , LIN MEILU , YANG XUN , YU JIAN
CPC分类号: H04W72/121 , H04W52/0216 , H04W52/0219 , H04W72/0446 , H04W72/1289 , H04W74/06 , H04W74/08
摘要: Embodiments of the present invention provide a method for sending an uplink multi-user transmission trigger frame, an access point, and a station. The access point sends, to a station, a beacon frame that carries a trigger frame information element, where the trigger frame information element includes sending information of a trigger frame. The station obtains a target transmission time sequence of the trigger frame according to the sending information. The access point contends for a channel when a target transmission time of the trigger frame arrives, and the access point sends the trigger frame to the station after the contention succeeds. In this case, the station switches to an active state, and receives the trigger frame by listening to the channel, and the station performs uplink transmission according to indication of the trigger frame after receiving the trigger frame. In this way, when signaling overheads are not increased and reliability is ensured, a station can learn of a sending time of a trigger frame, and the station remains in a receiving state in an appropriate period of time.
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公开(公告)号:EP3282660A4
公开(公告)日:2018-04-18
申请号:EP15891129
申请日:2015-05-20
申请人: HUAWEI TECH CO LTD
发明人: LIN MEILU , LIU SHENG , LIN WEI , YU JIAN , LIU LE , YANG XUN , SHILO SHIMON , EZRI DORON , TSODIK GENADIY , REDLICH ODED
CPC分类号: H04L27/2626 , H04L5/0048 , H04L5/0091 , H04L27/26 , H04L27/2605 , H04L69/323 , H04W84/12
摘要: Embodiments of the present invention provide a method for transmitting a physical layer protocol data unit PPDU, including: some data subcarriers of a last orthogonal frequency division multiplexing OFDM symbol that carries useful information and that is in the PPDU carry a data symbol sequence, the other data subcarriers of the last OFDM symbol that carries useful information carry a feature signal sequence, and a starting position of the feature signal sequence is determined by parsing the PPDU. The embodiments of the present invention further provide a corresponding PPDU transmission apparatus. Application of the method and apparatus in the embodiments of the present invention enables a receive end to quickly determine the starting position of the feature signal sequence by means of blind detection, and ensures that the receive end quickly completes data processing and state switching.
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公开(公告)号:EP3337077A4
公开(公告)日:2018-07-11
申请号:EP16840831
申请日:2016-08-31
申请人: HUAWEI TECH CO LTD
CPC分类号: H04L5/00 , H04L5/0005 , H04L5/0007 , H04L5/0037 , H04L5/0091 , H04W74/002 , H04W84/12
摘要: A method for sending a wireless local area network packet structure is provided, and the method comprises: determining a packet structure, where the packet structure comprises an HE-SIGA and an HE-SIGB, the HE-SIGA comprises an indication information, and if a current transmission mode is a full bandwidth MU-MIMO transmission, the indication information is used to indicate a number of scheduled users, or if the current transmission mode is other transmission mode, the indication information is used to indicate a number of symbols in the HE-SIGB; and sending the packet structure.
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公开(公告)号:EP3242530A4
公开(公告)日:2018-01-17
申请号:EP14909464
申请日:2014-12-31
申请人: HUAWEI TECH CO LTD
CPC分类号: H04W52/0212 , H04W24/08 , H04W28/20 , H04W52/0229 , H04W52/50 , H04W72/04 , H04W72/0493 , H04W74/0808 , H04W84/12 , Y02D70/142
摘要: Embodiments of the present invention propose a data transmission method, including: determining, according to a maximum power value detected by performing a CCA on a primary channel in one or more processing time periods, a power value interval to which the maximum power value detected by performing the CCA belongs, where the determined power value interval is one of one or more power value intervals that do not overlap each other; obtaining a transmit power spectral density according to the determined power value interval, where there is a one-to-one correspondence between the one or more power value intervals and one or more transmit power spectral densities; and when a TXOP is obtained, performing data transmission on a transmission channel by using a power spectral density that is not greater than the transmit power spectral density. A corresponding power value interval is determined by considering a maximum power value detected by performing a CCA on a primary channel, so as to obtain a transmission channel and a transmit power spectral density that are most suitable for a current channel status, so that a probability of accessing a channel by a station is increased, and the station may use a power spectral density as large as possible to perform data transmission, so as to maximize transmission efficiency of a system.
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公开(公告)号:EP3301990A4
公开(公告)日:2018-05-30
申请号:EP15896854
申请日:2015-07-15
申请人: HUAWEI TECH CO LTD
CPC分类号: H04W76/11 , H04L1/1614 , H04L1/1621 , H04L5/0007 , H04L5/0037 , H04L5/005 , H04L5/0055 , H04W72/04 , H04W74/008 , H04W74/04 , H04W74/08 , H04W74/0833 , H04W84/12
摘要: Embodiments of the present invention provide an association establishment method and apparatus. The method includes: broadcasting, by an AP, a trigger frame, where the trigger frame is used to indicate one or more available subchannel and trigger multiple first STAs to perform uplink data transmission at the same time; receiving, by the AP, an association request message sent on a corresponding available subchannel by each first STA; broadcasting, by the AP, a multi-block acknowledgement M-BA frame, where the M-BA frame includes one or more piece of association acknowledgement information, where if the trigger frame includes a temporary identifier that is allocated by the AP to an available subchannel, the association acknowledgement information includes a MAC address of one or more second STA; otherwise, the association acknowledgement information includes a MAC address of one or more second STA and a first AID that is allocated by the AP to the second STA; and sending, by the AP, an association response message to the second STA according to the first AID, where the association response message is used to indicate that an association is successfully established. In this way, the AP is associated with the second STA, and communication reliability is ensured.
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公开(公告)号:EP3293909A4
公开(公告)日:2018-04-25
申请号:EP15894619
申请日:2015-06-10
申请人: HUAWEI TECH CO LTD
CPC分类号: H04L27/2626 , H04L5/0007 , H04L5/0053 , H04L5/0094 , H04L27/2605 , H04L69/323 , H04W84/12
摘要: Embodiments of the present invention provide a physical layer protocol data unit PPDU transmission method, including: generating and sending a PPDU, where the PPDU includes a signal extension SE field, the SE field is after the last orthogonal frequency division multiplexing OFDM symbol that carries useful information, the PPDU includes indication information, the indication information is in a high efficiency signaling field HE-SIG, and the indication information I is generated based on a symbol length of the SE field and is used to indicate whether a receive end needs to adjust a calculated quantity of OFDM symbols.
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10.
公开(公告)号:EP3231237A4
公开(公告)日:2018-01-24
申请号:EP15877686
申请日:2015-12-23
申请人: HUAWEI TECH CO LTD
发明人: ZHU JUN , ABOUL-MAGD OSAMA , SUH JUNG HOON , LIN MEILU
CPC分类号: H04L5/0053 , H04L1/0004 , H04L1/001 , H04L5/0091 , H04L27/3405 , H04W52/262 , H04W72/0446 , H04W72/0473 , H04W84/12
摘要: A method for operating a transmitting device using semi-orthogonal multiple access (SOMA) in a wireless local area network (WLAN) includes determining a first quadrature amplitude modulation (QAM) bit allocation, a first coding rate, and a first SOMA group for a first receiving device and a second QAM bit allocation, a second coding rate, and a second SOMA group for a second receiving device in accordance with channel information associated with the first receiving device and the second receiving device, generating a frame including indicators of the first and second QAM bit allocations, the first and second coding rates, and the first and second SOMA groups, and sending the frame to the first receiving device and the second receiving device.
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