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WO2016090643A1 - Procédé d'attribution de ressources, point d'accès et station - Google Patents

Procédé d'attribution de ressources, point d'accès et station Download PDF

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Publication number
WO2016090643A1
WO2016090643A1 PCT/CN2014/093730 CN2014093730W WO2016090643A1 WO 2016090643 A1 WO2016090643 A1 WO 2016090643A1 CN 2014093730 W CN2014093730 W CN 2014093730W WO 2016090643 A1 WO2016090643 A1 WO 2016090643A1
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WIPO (PCT)
Prior art keywords
station
access point
indication message
resource
uplink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2014/093730
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English (en)
Chinese (zh)
Inventor
树贵明
丁志明
容志刚
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201480078569.8A priority Critical patent/CN106465040B/zh
Priority to PCT/CN2014/093730 priority patent/WO2016090643A1/fr
Publication of WO2016090643A1 publication Critical patent/WO2016090643A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and more particularly to a method, access point and site for resource allocation.
  • MAC Media Access Control
  • CSMA/CA Carrier Sense Multiple Access with Collision Detection
  • OFDM Orthogonal Frequency Division Multiplexing
  • MIMO Multi-input Multi-output
  • OFDMA Orthogonal Frequency Division Multiple Access
  • an AP Access Point, access point
  • STA Selection uplink cache data one by one.
  • Information When the AP accesses one of its associated STAs, the STA returns the information of the uplink cache data to the AP, and the AP continues to access the next STA associated with it, and the query mechanism needs to consume too much channel resources and systems. Overhead, resulting in low efficiency of channel resource allocation.
  • the embodiments of the present invention provide a method, an access point, and a site for resource allocation, which can allocate uplink channel resources reasonably and efficiently.
  • a first aspect of the embodiments of the present invention provides a method for resource allocation, including:
  • the access point sends a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate, for at least one station, an uplink scheduling period of channel resources at the access point.
  • Information of a random access resource block included therein, the random access resource block includes at least one transmission resource unit, where the at least one transmission resource unit is used by the at least one station to send a first indication message;
  • the access point receives the first indication message sent by the first station in the at least one station by using one of the at least one transmission resource unit;
  • the first indication message is used to indicate that the first station has an uplink channel resource requirement, and the first indication message includes identifier information of the first station;
  • the access point Determining, by the access point, whether the first indication message is a valid first indication message, and if yes, according to the first indication message, in the uplink scheduling period of the channel resource of the access point, being the first station Allocate upstream channel resources.
  • the access point receives the at least one by using one of the at least one transmission resource unit
  • the first indication message sent by the first station in the site includes:
  • the access point receives, by one of the at least one transmission resource unit with a sequence number, the first station in the at least one site, by using the at least one transmission resource with the sequence number according to a preset rule.
  • the first indication message sent by one of the selected transmission resource units in the unit.
  • the access point verifies whether the first indication message is a valid first indication.
  • the message specifically includes:
  • the access point calculates a corresponding value of the identifier information of the site by using the preset rule
  • the The allocating the uplink channel resource to the first station in the uplink scheduling period of the channel resource of the access point includes:
  • the access point allocates a preset length of the uplink channel resource to the first station in the uplink scheduling period of the channel resource of the access point according to the first indication message; or, the first indication message is further The size of the uplink channel resource required by the site or the size of the cached data that needs to be uplinked by the first station, where the access point is required according to the first site included in the first indication message.
  • the size of the uplink channel resource or the size of the cache data to be uplink transmitted by the first station Allocating the required uplink channel resources to the first station during an uplink scheduling period of the channel resources of the access point.
  • the method further includes:
  • the access point sends a second downlink frame to the first station, where the second downlink frame includes second indication information, where the second indication information is used to indicate, for the first station,
  • the station sends the channel resource of the second indication message;
  • the second indication message carries the size of the uplink channel resource required by the first station or the size of the cache data that needs to be uplink transmitted by the first station;
  • the allocating the uplink channel resources to the station in the uplink scheduling period of the channel resource of the access point according to the first indication message includes:
  • the access point according to the size of the uplink channel resource required by the first station included in the second indication message or the size of the cache data to be uplink transmitted by the first station, at the access point
  • the uplink resource is allocated to the first station during an uplink scheduling period of the channel resource.
  • a flag bit and an indicator bit are carried in the SIG field or the physical frame data part of the physical frame header of a downlink frame, where the flag bit is used to indicate that a random access resource block is included in an uplink scheduling period of the channel resource.
  • the indication bit is used to indicate information of a random access resource block.
  • a second aspect of the embodiments of the present invention provides a method for resource allocation, including:
  • the site Receiving, by the site, a first downlink frame sent by the access point, where the first downlink frame includes first indication information, where the first indication information is used to indicate at the at least one site including the site
  • the station selects one transmission resource unit from the random access resource blocks;
  • the uplink channel resources are allocated to the station during the uplink scheduling period of the resource.
  • the selecting, by the station, one transmission resource unit from the random access resource block includes:
  • the site calculates a corresponding value of the identifier information of the site by using a preset rule
  • the station accesses the selected transmission resource unit. After the sending the first indication message, the method further includes:
  • the station Receiving, by the station, a second downlink frame sent by the access point, where the second downlink frame includes second indication information, where the second indication information is used by the access point for the site indication for the The station sends a channel resource of the second indication message; the second indication message carries a size of an uplink channel resource required by the station;
  • the size of the uplink channel resource is allocated to the station for the required uplink channel resource during the uplink scheduling period of the channel resource of the access point.
  • the station selects from the random access resource block Before a transmission resource unit, the method further includes:
  • the site obtains temporary identifier information from the identifier space, and the identifier information of the site is specifically the temporary identifier information.
  • a third aspect of the embodiments of the present invention provides an access point for resource allocation, including:
  • a first sending unit configured to send a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate channel resources at the access point for at least one station
  • the access point receives the first indication message sent by the first station in the at least one station by using one of the at least one transmission resource unit;
  • a first receiving unit configured to receive, by using one of the at least one transmission resource unit, the first indication message sent by the first station in the at least one station; the first indication message is used to indicate The first site has an uplink channel resource requirement, and the first indication message includes identifier information of the first site;
  • a verification unit configured to verify whether the first indication message is a valid first indication message
  • An allocating unit configured to allocate an uplink channel to the first station during an uplink scheduling period of a channel resource of the access point according to the first indication message, when the first indication message is a valid first indication message Resources.
  • the first receiving module is configured to transmit a resource unit by using one of the at least one transmission resource unit with a sequence number Receiving, by the first station in the at least one station, the first indication message sent by one transmission resource unit selected from the at least one transmission resource unit with the sequence number according to a preset rule.
  • the verification unit specifically includes:
  • a calculation module configured to calculate, by using the preset rule, a corresponding value of the identifier information of the site
  • a determining module configured to determine whether the corresponding value corresponds to a transmission resource unit number through which the access point receives the first indication message; and when the corresponding value and the access point receive the When the number of the transmission resource unit that is indicated by the indication message is corresponding, determining that the first indication message is a valid first indication message, when the corresponding value and the access point receive the first indication message When the sequence number of the transmission resource unit does not correspond, determining that the first indication message is an invalid first indication message.
  • a first allocation module configured to allocate a preset length of uplink channel resources to the first station in an uplink scheduling period of the channel resource of the access point according to the first indication message; or, the first indication
  • the message further includes the size of the uplink channel resource required by the station or the first station needs to be uplinked.
  • the access point further includes:
  • a second sending unit configured to send, after the first receiving unit receives the first indication message sent by the first station, a second downlink frame to the first station, where the second downlink frame includes
  • the second indication information is used to indicate, for the first station, a channel resource used by the station to send a second indication message, where the second indication message carries an uplink channel required by the first station.
  • a second receiving unit configured to receive the second indication message that is sent by the first station according to the channel resource indicated by the second indication information
  • the allocating unit includes a second allocating module, configured to: according to the size of the uplink channel resource required by the first station included in the second indication message or the size of the cache data to be uplink transmitted by the station, An uplink channel resource is allocated to the first station during an uplink scheduling period of a channel resource of the access point.
  • the first sending unit includes:
  • a first sending module configured to send a first downlink frame, where a flag bit and an indicator bit are carried in a SIG field or a physical frame data part of a physical frame header of the first downlink frame, where the flag bit is used And indicating, in the uplink scheduling period of the channel resource, a random access resource block, where the indicator bit is used to indicate information of a random access resource block, where the random access resource block includes at least one transmission resource unit, where the transmission The resource unit is used by the station to send a first indication message.
  • a fourth aspect of the embodiments of the present invention provides a site for resource allocation, including:
  • a third receiving unit configured to receive a first downlink frame that is sent by the access point, where the first downlink frame includes first indication information, where the first indication information is used to be at least one that includes the site
  • the station indicates information of a random access resource block included in an uplink scheduling period of a channel resource of the access point, where the random access resource block includes at least one transmission resource unit, where the at least one transmission resource unit is used for Said at least one station sending a first indication message indicating that the station has an uplink channel resource requirement;
  • a selecting unit configured to select one transmission resource unit from the random access resource blocks
  • a third sending unit configured to send, by using the selected transmission resource unit, the first indication message to an access point, where the first indication message includes identifier information of the site, so that the access point verifies the
  • the uplink channel resource is allocated to the station in an uplink scheduling period of the channel resource of the access point according to the first indication message.
  • the selecting unit is specifically configured to:
  • the second implementation manner of the fourth aspect of the embodiments of the present invention is characterized in that:
  • a fourth receiving unit configured to: after sending the first indication message to the access point by using the selected transmission resource unit, receive a second downlink frame sent by the access point, where the second downlink frame includes a second Instructing information, the second indication information is used by the access point to indicate, by the station, a channel resource that sends a second indication message, where the second indication message carries a size of an uplink channel resource required by the station;
  • a fourth sending unit configured to send the second indication message to the access point according to the channel resource indicated by the second indication information, so that the access point is included according to the second indication message
  • the size of the uplink channel resource required by the station is allocated to the station for the required uplink channel resource during the uplink scheduling period of the channel resource of the access point.
  • the site further includes:
  • An obtaining unit configured to obtain temporary identification information from the identification space, if the site is not associated with the access point, before the station selects one transmission resource unit from the random access resource block,
  • the identification information of the site is specifically the temporary identifier information.
  • the embodiment of the present invention provides a method, an access point, and a site for resource allocation, which are used to allocate uplink channel resources reasonably and efficiently, including: the access point sends a first downlink frame, and the first The first frame of the first indication information is used to indicate, for the at least one station, the information of the random access resource block included in the uplink scheduling period of the channel resource of the access point, the random connection
  • the ingress resource block includes at least one transmission resource unit, the at least one transmission resource unit is configured to send, by the station, a first indication message, where the access point receives the one by using one of the at least one transmission resource unit
  • the first indication message sent by the first station in the at least one station, the first indication message is used to indicate that the first station has an uplink channel resource requirement, and the first indication message includes the first station Identification information
  • the access point verifies whether the first indication message is a valid first indication message, and if yes, according to the first indication message, in an uplink scheduling period of the channel resource of the access point, The first
  • the access point does not need to query the station to send uplink data one by one as in the prior art, but can receive multiple sites simultaneously sent by the OFDMA mechanism to indicate that the station has uplink data to be transmitted.
  • the first indication message can quickly know which stations have uplink data to be sent, which improves the efficiency of the query and improves the efficiency of channel resource allocation.
  • the access point can reasonably allocate the uplink channel resources of each station according to actual conditions. It is beneficial to save channel resources and system overhead.
  • FIG. 1 is a schematic diagram of an embodiment of a method for resource allocation in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a method for resource allocation in an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a method for resource allocation in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a method for resource allocation in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a method for resource allocation according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of a method for resource allocation according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an embodiment of an access point used for resource allocation according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of another embodiment of an access point for resource allocation according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another embodiment of an access point for resource allocation according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of another embodiment of an access point for resource allocation according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an embodiment of a site for resource allocation in an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of another embodiment of a site for resource allocation according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of another embodiment of an access point for resource allocation according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of another embodiment of a site for resource allocation in an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of an embodiment of a resource distribution device application scenario according to an embodiment of the present invention.
  • the embodiment of the invention provides a method, an access point and a site for resource allocation, which are used for reasonably efficient allocation of uplink channel resources.
  • an embodiment of a method for resource allocation in an embodiment of the present invention includes:
  • the access point sends a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate, at least one station, an uplink of channel resources at the access point.
  • the information of the random access resource block included in the scheduling period, the random access resource block includes at least one transmission resource unit, where the at least one transmission resource unit is used by the at least one station to send the first indication message;
  • the information including the uplink scheduling period includes the random access resource block allocated by the access point for the station in the uplink scheduling period (such as a period corresponding to the whole or part of the channel spectrum), Specifically, the address of the random access resource block allocated by the access point included in the uplink scheduling period for the station may be indicated in the head of the downlink frame, that is, the channel resource window indication arranged according to the uplink scheduling period in the header of the downlink frame.
  • the access point determines the information of the channel resource window included in the uplink scheduling period before receiving the uplink frame sent by the station in the uplink scheduling period.
  • the access point receives, by using one of the at least one transmission resource unit, the first indication message sent by a first station in the at least one station.
  • the first indication message is used to indicate that the site has an uplink channel resource requirement, and the first indication message includes identifier information of the first site.
  • the signal is not directly Transmission, but the signal interacts with a fixed-frequency wave. This process is called loading.
  • a fixed-frequency wave is called a carrier, and a group of sub-carriers is a sub-channel because there are several stations that have uplinks.
  • the data is buffered, so the random access resource block needs to be divided into several transmission resource units (such as several subchannels). It should be noted that the random access resource block is specifically provided to the resource block that is associated with the access point and is not associated with the site for access.
  • the access point verifies whether the first indication message is a valid first indication message, and if yes, performs 104. If not, the process may be ended, for example, the received first indication message may be discarded;
  • the access point may receive messages sent by other unrelated stations, or interference signals from other communication devices, in order to ensure the correctness of the information, the received message may be It is verified that if the first indication message sent by the relevant station is verified, the first indication message may be considered as valid, and then the subsequent uplink channel resource allocation operation is performed.
  • the access point can reasonably allocate the uplink channel resources of each station according to actual conditions.
  • the access point sends a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate at the at least one site at the access point.
  • the message includes the identifier information of the site, and the access point verifies whether the first indication message is a valid first indication message, and if yes, the channel resource of the access point is uplinked according to the first indication message.
  • the uplink channel resources are allocated to the station during the scheduling period. In this way, the access point does not need to query the station to have uplink data to be sent one by one as in the prior art.
  • each of the access points receives the first A station of a downlink frame may send, according to the information of the random access resource block indicated therein, a first channel to the access point to indicate that the station has an uplink channel resource requirement, on a channel resource corresponding to each station.
  • the access point may receive the first indication message that is sent by the multiple stations in parallel through the OFDMA mechanism to indicate that the station has uplink data to be transmitted, so that it can quickly know which stations have uplink data to send, and improve the pair.
  • the efficiency of the query is improved by the site, and the efficiency of channel resource allocation is improved.
  • the access point can allocate the uplink channel resources of each site according to the actual situation, which is beneficial to save channel resources and system overhead.
  • the access point indicates that the random access resource block is included in the uplink scheduling period of the channel resource in the downlink frame, and the access point passes the random access that is divided into several transmission resource units.
  • the resource block receives the first indication message sent by the station, and in an actual application, the access point indicates, in a physical frame header of the downlink frame, information that includes a random access resource block in an uplink scheduling period of the channel resource.
  • the access point receives the first indication message sent by the transmission resource unit corresponding to the sequence number according to a preset rule by the transmission resource unit divided into a plurality of sequence numbers, and the access point passes the
  • the identification information in an indication message verifies whether the first indication message is a valid first indication message.
  • the following is a description of the authentication of the first indication message and the allocation of the channel resource by the access point. Referring to FIG. 2, another embodiment of the method for resource allocation in the embodiment of the present invention includes:
  • the access point sends a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate, in the physical frame header of the downlink frame, the at least one site.
  • the uplink scheduling period information is included, and the uplink access resource block allocated by the access point for the station (such as a period corresponding to the whole or part of the channel spectrum) and the physical frame in the downlink frame are included in the uplink scheduling period.
  • the header indicates the random access resource block information allocated by the access point included in the uplink scheduling period for the station, that is, the channel resource allocation is set according to the channel resource block window arranged in the uplink scheduling period in the physical frame header of the downlink frame. information.
  • the access point needs to allocate a certain channel resource window for the station (STA) scheduled to perform uplink transmission, so that the uplink scheduling station uses channel resources.
  • STA station
  • the ingress point has a higher priority of occupying the channel resource, so the access point (AP) first transmits the downlink scheduling frame or the data frame, and the physical frame header of the downlink scheduling frame or the physical frame of the downlink data frame.
  • the header sets the uplink channel resource indication information according to the channel resource window corresponding to the uplink scheduling period.
  • the AP may include random access in the uplink scheduling period of the channel resource indicating the physical frame header or the physical frame data part of the downlink scheduling frame (or the downlink data frame).
  • Capital The information of the source block, the physical frame data part is the content of the MAC layer frame.
  • the station can randomly access or use the channel through channel resources (transmission resource units) in the channel resource window (random access resource block) of the three time slots.
  • a station (STA) that needs to use a channel may select one or more subchannels (ie, subcarriers) to transmit a message within a corresponding time slot.
  • the random access resource block may provide resource blocks for channel access and use for sites associated with the access point and unassociated sites.
  • the access point receives, by using one of the at least one transmission resource unit with a sequence number, the first station in the at least one site, by using the preset number according to a preset rule.
  • the first indication message sent by the selected one of the at least one transmission resource unit;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block needs to be divided into several transmission resource units (such as several subchannels).
  • the divided transmission resource units may be preset with a sequence number for site selection.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the access point may receive messages or interference signals sent by other unrelated stations, in order to ensure the correctness of the information, it can be received The message is verified and confirmed, and then the subsequent allocation operation.
  • the embodiment of the present invention exemplarily provides a method for verifying the first indication information, such as step 203. And 204 are shown.
  • the access point calculates, by using a preset rule, a corresponding value of the identifier information of the first site.
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the algorithm calculates the identification information of the site to obtain a hash value, and the site can select a corresponding transmission resource unit by using the calculated hash value, such as a corresponding hash value as a serial number.
  • Transfer resource unit For example, the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to the unique corresponding value of the identification information of the site, for example, the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resources.
  • the units are sorted in the order of 1-8, 9-16, 17-24, and the station can select the corresponding number 8 transmission resource according to the corresponding value of the identification information of the site as described in the above example "8".
  • the access point may determine whether the first indication message is valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit used for transmitting the first indication message, that is, if the The corresponding value can be matched with the sequence number of the transmission resource unit that receives the first indication message, and the first indication message is determined to be valid, if the corresponding value is related to the transmission resource unit that receives the first indication message. If the serial number does not match, it is invalid.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8 (that is, the access point receives the first indication message through the No. 8 transmission resource unit), and calculates association information of the site in the first indication message.
  • the corresponding value of "8" indicates that the corresponding value of the associated information of the station matches the serial number of the transmission unit.
  • the access point allocates, according to the first indication message, an uplink channel resource of a preset length to the first station in an uplink scheduling period of the channel resource of the access point; or, the first indication
  • the message further includes a size of the uplink channel resource required by the first station (or a size of the cached data that the first station needs to transmit in the uplink), where the access point is included according to the first indication message
  • the size of the uplink channel resource required by the first station allocates the required uplink channel resource to the first station during an uplink scheduling period of the channel resource of the access point;
  • the access point may assign each station a preset length of uplink according to the actual situation. Channel resources, such as averaging 10ms of channel resources for each site. If the uplink buffer data of some sites fails to be transmitted at one time, it can continue in the next allocated channel resource. Performing the transmission, or when the first indication message further includes the uplink channel resource information required by the station, according to the uplink channel resource information required by the station included in the first indication message, The uplink channel resources required for the station are allocated during the uplink scheduling period of the channel resources of the access point.
  • the access point after receiving the first indication message sent by the station, calculates the corresponding value of the identifier information of the site, and determines whether the corresponding value is corresponding to the sequence number of the transmission resource unit.
  • An indication of the validity of the message such that the access point performs a verification process on the first indication message sent by the station, ensuring that the received message is accurate, and avoiding that the access point may receive the wrong first
  • the indication message unreasonably allocates channel resources.
  • the access point allocates a preset length of the uplink channel resource to the station according to the first indication message, or allocates the required channel to the station according to the uplink resource requirement included in the first indication message. Resources, in this way, improve the efficiency of information transmission.
  • the access point verification site is described, and the resource is allocated to the site according to the first indication message.
  • the access point may further acquire the required uplink of the site. Channel resources, and then allocate resources to the stations according to the required uplink channel resources.
  • the following describes the access resources needed by the access point to acquire the uplink channel resources of the station and allocate resources according to the required uplink channel resources.
  • another embodiment of a method for resource allocation in an embodiment of the present invention includes:
  • the access point sends a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate, in the physical frame header of the downlink frame, the at least one site.
  • the uplink scheduling period information is included, and the uplink access resource block (the time period corresponding to the whole or part of the channel spectrum) allocated by the access point for the station is included in the uplink scheduling period, and the physical frame header of the downlink frame is included in the downlink scheduling period.
  • the department indicates that the access point included in the uplink scheduling period is the random access resource block information allocated by the station, that is, the channel resource allocation information is set according to the channel resource block window arranged in the uplink scheduling period in the physical frame header of the downlink frame. .
  • the uplink scheduling period is the random access resource block information allocated by the station, that is, the channel resource allocation information is set according to the channel resource block window arranged in the uplink scheduling period in the physical frame header of the downlink frame.
  • the access point needs to allocate a certain channel resource window for the station (STA) scheduled to perform uplink transmission, so that the uplink scheduling station uses channel resources.
  • the entry point has a higher occupied channel
  • the priority of the source so the access point (AP) first transmits the downlink scheduling frame or the data frame, and the physical frame header of the downlink scheduling frame or the physical frame header of the downlink data frame is according to the channel corresponding to the uplink scheduling period.
  • the resource window sets the uplink channel resource indication information.
  • the AP may include random access in the uplink scheduling period of the channel resource indicating the physical frame header or the physical frame data part of the downlink scheduling frame (or the downlink data frame).
  • the information of the resource block, the physical frame data part is the content of the MAC layer frame.
  • the station can randomly access or use the channel through channel resources (transmission resource units) in the channel resource window (random access resource block) of the three time slots.
  • a station (STA) that needs to use a channel may select one or more subchannels (ie, subcarriers) to transmit a message within a corresponding time slot.
  • the random access resource block may provide resource blocks for channel access and use for sites associated with the access point and unassociated sites.
  • the access point receives, by using one of the at least one transmission resource unit with a sequence number, the first station in the at least one site, by using the preset number according to a preset rule.
  • the first indication message sent by the selected one of the at least one transmission resource unit;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block such as the channel resource window
  • the divided transmission resource units may be preset with a sequence number, for example, the subcarrier groups are sequentially numbered from 1 to the first subchannel, the second subchannel, the third subchannel, etc. according to the frequency level to provide a site. select.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the access point may receive messages or interference signals sent by other unrelated stations, in order to ensure the correctness of the information, it can be received The message is verified and confirmed, and then the subsequent allocation operation.
  • the embodiment of the present invention exemplarily provides a method for verifying the first indication information. As shown in steps 303 and 304.
  • the access point calculates, by using a preset rule, a corresponding value of the identifier information of the first site.
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the algorithm calculates the identification information of the site to obtain a hash value, and the station can select the transmission resource unit of the corresponding sequence number by using the calculated hash value, such as the corresponding hash value as the transmission resource unit of the sequence number.
  • the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to the unique corresponding value of the identification information of the site, for example, the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resources.
  • the unit is sorted in the order of 1-8, 9-16, 17-24, and the station can select the corresponding 8th transmission resource unit according to the corresponding value of the identification information of the station, such as "8", so the access point Determining whether the first indication message is valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit, if the corresponding value can be transmitted with the first indication message by using the transmission resource unit.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • the access point sends a second downlink frame to the first station, where the second downlink frame includes second indication information, where the second indication information is used to indicate, for the first site, that The first station sends the channel resource of the second indication message; the second indication message carries the size of the uplink channel resource required by the first station or the size of the cache data that needs to be uplink transmitted by the first station;
  • the access point After receiving the first indication message, the access point indicates the uplink buffer data or the management and control message to be sent in the site, and after determining that the first indication message is valid, the access point may send the The second downlink frame of the uplink channel resource scheduling information indicates that the station sends the buffered data size information or the required uplink channel resource information to the access point on the channel resource indicated by the second indication information.
  • the access point receives the second indication message that is sent by the first station according to the channel resource indicated by the second indication information.
  • the second indication message that is sent by the access point to receive the uplink channel resource information required by the station may also be received.
  • the first indication message is received in a manner.
  • the second indication message carries the identifier information of the site, and the access point can verify the second indication message again, and details are not described herein.
  • the station carries the required uplink channel resource size information by using the second indication message, and the comparison station directly carries the required uplink channel resource size information in the first indication message, and reduces the scheme.
  • the channel resource occupied by the first identifier message is sent by the station, that is, the size of the transmission resource unit used for transmitting the first indication message is reduced, so that the same number of stations (STAs) are sent to send the first indication message.
  • STAs stations
  • the access point is configured according to the size of the uplink channel resource required by the first station included in the second indication message or the size of the cache data that needs to be uplink transmitted by the first station. Allocating uplink channel resources to the first station during an uplink scheduling period of the channel resources of the point;
  • the access point may be based on the actual The situation allocates corresponding channel uplink channel resources to each station.
  • the access point after receiving the indication message that the site has the uplink buffer data, the access point further obtains the required uplink channel resource information of the station, and may allocate the corresponding size to the site according to the uplink channel resource information required by the station.
  • the channel resources are such that the channel resources are rationally utilized and the transmission efficiency is improved.
  • the access point indicates that the access point includes the information of the random access resource block in the uplink scheduling period of the channel resource in the physical frame header of the downlink frame.
  • the access point may also be in the downlink.
  • a number of flag bits and indicator bits in the SIG field of the frame physical frame header or in the MAC layer frame Indicates that the information of the random access resource block is included in the uplink scheduling period of the channel resource, and the access point indicates the channel in the SIG field of the physical frame header of the downlink frame or in the MAC layer frame by using a flag bit and an indication bit.
  • another embodiment of the method for resource allocation in the embodiment of the present invention includes:
  • the access point sends a first downlink frame, where the SIG field of the physical frame header of the first downlink frame or the physical frame data part carries a flag bit and an indication bit, where the flag bit is used to indicate Having a random access resource block in an uplink scheduling period of the channel resource, the indicator bit is used to indicate information of a random access resource block, the random access resource block includes at least one transmission resource unit, and the at least one transmission
  • the resource unit is configured to send, by the at least one station, a first indication message;
  • the uplink scheduling period information is included, and the random access resource block allocated by the access point to the station is included in the uplink scheduling period, such as a period corresponding to the whole or part of the channel spectrum, and the physical frame header in the downlink frame.
  • the part indicates the random access resource block information allocated by the access point included in the uplink scheduling period to the station, that is, in the SIG field of the physical frame header of the downlink frame or in the MAC layer frame according to the uplink scheduling period.
  • the channel resource block window sets channel resource allocation information.
  • STA station
  • the ingress point has a higher priority of occupying the channel resource, so the access point (AP) first transmits the downlink scheduling frame or the data frame, and the physical frame header of the downlink scheduling frame or the physical frame of the downlink data frame.
  • the header sets the uplink channel resource indication information according to the channel resource window corresponding to the uplink scheduling period.
  • the AP may include random access in the uplink scheduling period of the channel resource indicating the physical frame header or the physical frame data part of the downlink scheduling frame (or the downlink data frame).
  • the information of the resource block, the physical frame data part is the content of the MAC layer frame.
  • the random access resource block may provide a resource block for channel access for the site associated with the access point and the unassociated site.
  • the first station After receiving the downlink frame sent by the access point, the first station determines, by using the flag bit, whether the uplink scheduling period includes a random access resource block, and if yes, executing 403, if not, Determining that the first indication message cannot be sent in an uplink scheduling period;
  • the access point Since the access point first processes the downlink frame, the physical frame header or the physical frame data portion of the downlink scheduling frame or the downlink data frame indicates the information of the random access resource block in the uplink scheduling period of the channel resource, and the physical frame The data part is the content of the MAC layer frame, then the access point can handle the uplink. Before scheduling the frame, the information of the channel resource window included in the uplink scheduling frame is obtained. For example, in the SIG-1 field of the scheduling frame header, one bit "1" is used to indicate that the station is randomly arranged in the uplink channel resource part. The access channel resource window, the time and size of the window can be further indicated in SIG-2.
  • the resource window indication can adopt the following quad format: (start frequency, end frequency; start time, end time), and then The location further indicates (may also adopt a preset manner) the number of time slots included in the window, the number of subcarriers included in each time slot (ie, subchannels), grouping information of subcarriers, and the like.
  • the access point receives, by using one of the at least one transmission resource unit with a sequence number, the first station in the at least one site, by using the preset number according to a preset rule.
  • the first indication message sent by the selected one of the at least one transmission resource unit;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block such as the channel resource window
  • the plurality of first indication message transmission resource units that are divided may be preset with a sequence number, for example, the subcarrier groups are sequentially numbered from 1 to the first subchannel, the second subchannel, the third subchannel, etc. according to the frequency level.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the access point may receive messages or interference signals sent by other unrelated stations, in order to ensure the correctness of the information, it can be received The message is verified and confirmed, and then the subsequent allocation operation.
  • the embodiment of the present invention exemplarily provides a method for verifying the first indication information, such as step 404. And 405 are shown.
  • the access point calculates, by using a preset rule, a corresponding value of the identifier information of the first site.
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the algorithm calculates the identification information of the site to obtain a hash value, and the site can
  • the calculated hash unit is selected by the calculated hash value, such as a transmission resource unit corresponding to the hash value as the sequence number.
  • the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to the unique corresponding value of the identification information of the site, for example, the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resources.
  • the unit is sorted in the order of 1-8, 9-16, 17-24, and the station can select the corresponding 8th transmission resource unit according to the corresponding value of the identification information of the station, such as "8", so the access point Determining whether the first indication message is valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit, if the corresponding value can be transmitted with the first indication message by using the transmission resource unit.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • the access point sends a second downlink frame to the first station, where the second downlink frame includes second indication information, where the second indication information is used to indicate, for the first site, that The first station sends the channel resource of the second indication message; the second indication message carries the size of the uplink channel resource required by the first station or the size of the cache data that needs to be uplink transmitted by the first station;
  • the access point After receiving the first indication message, the access point indicates the uplink buffer data or the management and control message to be sent in the station, and after determining that the first indication message is valid, the access point may send the uplink channel resource scheduling to the station.
  • the second downlink frame of the information indicates that the station sends the buffered data size or the required uplink channel resource information to the access point on the channel resource indicated by the second indication information.
  • the access point receives, by the first station, the second indication message that is sent according to the channel resource indicated by the second indication information.
  • the access point receives the uplink channel required by the station to carry the station.
  • the second indication message of the resource information may be received by receiving the first indication message, in addition to being normally received according to the receiving manner defined in the existing 802.11 standard.
  • the second indication message carries the identifier information of the site, and the access point can verify the second indication message again, and details are not described herein.
  • the station carries the required uplink channel resource size information by using the second indication message, and the comparison station directly carries the required uplink channel resource size information in the first indication message, and reduces the scheme.
  • the channel resource occupied by the first identifier message is sent by the station, that is, the size of the transmission resource unit used for transmitting the first indication message is reduced, so that the same number of stations (STAs) are sent to send the first indication message.
  • STAs stations
  • the access point is configured according to a size of an uplink channel resource required by the first station included in the second indication message or a size of cache data that is to be uplink transmitted by the first station. Allocating uplink channel resources to the first station during an uplink scheduling period of the channel resources of the point;
  • the access point may be based on actual conditions.
  • Each station is allocated an uplink channel resource of a corresponding size.
  • the access point allocates resources for sending initial network access messages (such as probe request, probe request, association request, etc.), and the access point allocates these sites.
  • the method of determining the identity of the site to assign the channel resource to the site and determining the identity of the site may be used as the site by using the corresponding transmission resource unit number used by the site to send the uplink indication message.
  • the identity identifier can also be used as the identity of the site by using the temporary identity selected by the site in the identity space. For example, an unassociated site selects a first sequence of sixteen binary bits in its temporary identification space as its own temporary association identifier, and then calculates an inclusion 8 according to the first sequence according to a preset rule.
  • the second sequence of binary bits if the decimal value corresponding to the second sequence is "100", the station selects the transmission resource unit whose sequence number is "100" to send the first indication message, when the access point is from the sequence number
  • the sequence number "100” may be used as the identifier of the resource allocated for the site, or may be used.
  • the first sequence of sixteen binary bits selected by the site is used as an identifier of the resource allocated for the site.
  • the access point may also indicate the random access resource block included in the uplink scheduling period of the channel resource by using the flag bit and the indicator bit in the SIG field of the physical frame header of the downlink frame or in the MAC layer frame.
  • the detailed information of the resource block such as the time, size, and spectrum of the random access resource block.
  • the spectrum information may be used to indicate the start frequency and the end frequency of the random access resource block; the time information may be used to indicate The start time and the end time of the random access resource block; the size information is used to indicate the number of time slots included in the random access resource block (such as the channel resource window window), and the subcarriers included in each time slot ( That is, the number of subchannels, the grouping information of subcarriers, and the like.
  • the indication bit can be empty, thereby saving channel resources and improving transmission efficiency.
  • an embodiment of a method for resource allocation in an embodiment of the present invention includes:
  • the station receives a first downlink frame that is sent by the access point, where the first downlink frame includes first indication information, where the first indication information is used to indicate at least one site including the site.
  • Information about a random access resource block included in an uplink scheduling period of a channel resource of an access point, where the random access resource block includes at least one transmission resource unit, and the at least one transmission resource unit is used for the at least one site Sending a first indication message indicating that the station has an uplink channel resource requirement;
  • the information including the uplink scheduling period includes the random access resource block allocated by the access point for the station in the uplink scheduling period (such as a period corresponding to the whole or part of the channel spectrum), Specifically, the address of the random access resource block allocated by the access point included in the uplink scheduling period for the station may be indicated in the head of the downlink frame, that is, the channel resource window indication arranged according to the uplink scheduling period in the header of the downlink frame.
  • the access point determines the information of the channel resource window included in the uplink scheduling period before receiving the uplink frame sent by the station in the uplink scheduling period.
  • the station selects one transmission resource unit from the random access resource blocks.
  • the station Because the transmission resource unit is used by the station to send the first indication message, and the transmission resource unit is divided into Multiple, the station must select one of the plurality of transmission resource units for transmitting the first indication message.
  • the station sends the first indication message to an access point by using the selected transmission resource unit, where the first indication message includes identifier information of the site, so that the access point verifies the first
  • the indication message is a valid first indication message
  • the uplink channel resource is allocated to the station in an uplink scheduling period of the channel resource of the access point according to the first indication message;
  • the access point can reasonably allocate the uplink channel resources of each station according to actual conditions.
  • the station after receiving the information of the random access block resource included in the uplink scheduling period of the channel resource of the access point that is sent by the access point, the station is selected to be divided into several transmission resource units. a transmission resource unit, the station transmitting, by the transmission resource unit, a first indication message to the access point for indicating that the station has an uplink channel resource requirement. In this way, the station sends a first indication message for indicating that the station has an uplink channel resource requirement to the access point by using the transmission resource unit, and the access point may allocate the uplink channel resource of the station by using the first indication message.
  • the station is configured to select one transmission resource unit from the division into a plurality of transmission resource units, and the station sends, by using the transmission resource unit, an access point to indicate that the station has an uplink channel resource requirement.
  • the first indication message in an actual application, the station may also select a transmission resource unit by using a preset rule, and the station may further send a second indication message carrying the required uplink channel resource information to the access point.
  • the site may obtain temporary identification information from the identification space as the identification information of the site to implement the above method.
  • the identity information of the site refers to an Association Identity (AID) assigned by the access point.
  • AID Association Identity
  • the following is a detailed description of the process of obtaining the temporary identification information from the identifier space, and selecting the transmission resource unit to send the first indication message to the access point according to the preset rule. Referring to FIG. 6, the embodiment of the present invention is described. Another embodiment of a method for resource allocation in the method includes:
  • the station receives a first downlink frame sent by the access point, where the first downlink frame includes first indication information, where the first indication information is used to indicate at least one site including the site.
  • Information about a random access resource block included in an uplink scheduling period of a channel resource of an access point, where the random access resource block includes at least one transmission resource unit, and the at least one transmission resource unit is used for the at least one site Sending a first indication message indicating that the station has an uplink channel resource requirement;
  • the information including the uplink scheduling period includes the random access resource block allocated by the access point for the station in the uplink scheduling period (for example, a period corresponding to the whole or part of the channel spectrum), which may be in the downlink frame.
  • the header indicates the random access resource block information allocated by the access point included in the uplink scheduling period for the station, that is, the channel resource window arranged in the uplink scheduling period indicates that the location is allocated for the station.
  • the access point determines the information of the channel resource window included in the uplink scheduling period before receiving the uplink frame sent by the station in the uplink scheduling period.
  • the station determines whether it contains identification information associated with the access point, if not, then perform 603-608; if yes, execute 604-608;
  • the access point When the access point allocates channel resources to the site, the access point needs to know the identity information of the site, that is, the association identifier (AID) to indicate the unique identity of the site, so the site may first determine the site itself before sending the first indication message. Whether it contains an association identifier associated with the access point.
  • the identity information of the site that is, the association identifier (AID)
  • AID association identifier
  • the site obtains temporary identifier information from the identifier space, where the identifier information of the site is specifically the temporary identifier information.
  • the site does not have an association identifier associated with the access point, the site itself cannot be authenticated and the message is verified. Therefore, the site not associated with the access point can obtain the temporary association identifier from the identifier space as the site.
  • the identification information is used to proceed to subsequent steps 604-608.
  • the site calculates a corresponding value of the identifier information of the site by using a preset rule.
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the algorithm calculates the identification information of the site to obtain a hash value, and the station can select the transmission resource unit of the corresponding sequence number by using the calculated hash value, such as the corresponding hash value as the transmission resource unit of the sequence number.
  • the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the station selects, according to the corresponding value, the sequence number corresponding to the corresponding value from the at least one transmission resource unit with a sequence number included in the random access resource block from the random access resource block.
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to a unique corresponding value of the identification information of the site.
  • the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resource units. , then sorted in the order of 1-8, 9-16, 17-24, site Then, according to the corresponding value of the identification information of the site, for example, “8” selects the transmission resource unit of the corresponding serial number, so the access point can determine the corresponding value and the serial number of the transmission resource unit by determining the identifier information of the received site.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • the station sends the first indication message to an access point by using the selected transmission resource unit.
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block such as the channel resource window
  • the divided transmission resource units may be preset with a sequence number, for example, the subcarrier groups are sequentially numbered from 1 to the first subchannel, the second subchannel, the third subchannel, etc. according to the frequency level to provide a site. select.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the station receives a second downlink frame sent by the access point, where the second downlink frame includes second indication information, where the second indication information is used by the access point for the site indication
  • the station sends a channel resource of the second indication message; the second indication message carries a size of an uplink channel resource required by the station;
  • the access point After receiving the first indication message, the access point indicates the uplink buffer data or the management and control message to be sent in the station, and after determining that the first indication message is valid, the access point may send the uplink channel resource scheduling to the station.
  • the second downlink frame of the information indicates that the station sends the buffered data size information or the required uplink channel resource information to the access point on the channel resource indicated by the second indication information.
  • the station sends the second indication message to the access point according to the channel resource indicated by the second indication information.
  • the access point can be configured according to the access point according to the second indication message.
  • the size of the uplink channel resource required by the station allocates the required uplink channel resource to the station during the uplink scheduling period of the channel resource of the access point. It should be noted that, in this step, the station carries the required uplink channel resource size information by using the second indication message, and the comparison station directly carries the information of the required uplink channel resource size in the first indication message, which is reduced.
  • the station Transmitting, by the station, the channel resource occupied by the first indication message, that is, reducing the size of the first indication message transmission resource unit, that is, reducing the size of the transmission resource unit used for transmitting the first indication message, so that the same quantity is satisfied
  • the first station sends the first indication message, it can occupy smaller random access channel resource blocks, because not every allocated random access channel resource block can be used all at all (depending on how many The uplink transmission needs the site, and the number of access points are not known in advance), so allocating a small transmission resource unit for transmitting the first indication message helps to reduce the size of the random access channel resource block. Improve channel utilization efficiency of the entire communication system.
  • the site obtains the temporary identifier information, so that the site that is not associated with the access point has a temporary identifier information, and the corresponding value can be calculated according to the preset rule according to the identifier information, and then the corresponding value is selected according to the corresponding value.
  • Matching the transmission resource unit of the sequence number so that the access point allocates the channel resource to the site; after the station sends the indication message that the site has the uplink buffer data to the access point, the site further needs to send the site to the access point.
  • the uplink channel resource information the access point can allocate corresponding channel resources to the station according to the uplink channel resource information required by the station, so that the channel resources are rationally utilized and the transmission efficiency is improved.
  • an embodiment of an access point for resource allocation in an embodiment of the present invention includes:
  • the first sending unit 701 is configured to send a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate, at least one station, a channel at the access point.
  • the information including the uplink scheduling period includes the random access resource block allocated by the access point for the station in the uplink scheduling period (such as a period corresponding to the whole or part of the channel spectrum), Specifically, the address of the random access resource block allocated by the access point included in the uplink scheduling period for the station may be indicated in the head of the downlink frame, that is, the channel resource window indication arranged according to the uplink scheduling period in the header of the downlink frame.
  • the random access resource block information allocated for the station is received by the access point. Before the uplink frame sent by the station in the uplink scheduling period, the information of the channel resource window included in the uplink scheduling period is determined.
  • the first receiving unit 702 is configured to receive, by using one of the at least one transmission resource unit, the first indication message sent by the first station in the at least one station; the first indication message is used by Instructing the first station to have an uplink channel resource requirement, where the first indication message includes identifier information of the first station;
  • the signal In the process of signal transmission, instead of transmitting the signal directly, the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called a carrier, a group of subcarriers. That is, one subchannel, because there are several stations with uplink buffer data, the random access resource block needs to be divided into several first indication message transmission resource units (such as several subchannels). It should be noted that the random access resource block is specifically provided to the resource block that is associated with the access point and is not associated with the site for access.
  • the verification unit 703 is configured to verify whether the first indication message is a valid first indication message
  • the access point may receive messages sent by other unrelated stations, or interference signals from other communication devices, in order to ensure the correctness of the information, the received message may be It is verified that if the first indication message sent by the relevant station is verified, the first indication message may be considered as valid, and then the subsequent uplink channel resource allocation operation is performed.
  • the allocating unit 704 is configured to: when the first indication message is a valid first indication message, allocate an uplink to the first station according to the first indication message in an uplink scheduling period of a channel resource of the access point.
  • Channel resource For the first indication message is a valid first indication message, allocate an uplink to the first station according to the first indication message in an uplink scheduling period of a channel resource of the access point.
  • the access point can reasonably allocate the uplink channel resources of each station according to actual conditions.
  • the access point sends a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate at the at least one site at the access point.
  • Information about a random access resource block included in an uplink scheduling period of the channel resource where the random access resource block includes at least one transmission resource unit, where the transmission resource unit is used by the station to send a first indication message, where the connection Receiving, by the one of the transmission resource units, the first indication message sent by the station, where the first indication message is used to indicate that the station has an uplink channel resource requirement, the first indication
  • the message includes the identification information of the site, and the access point verifies whether the first indication message is a valid first indication message, and if yes, according to the first indication message, at the access point An uplink channel resource is allocated to the station during an uplink scheduling period of the channel resource.
  • the access point does not need to query the station to send uplink data one by one as in the prior art, but can receive multiple sites simultaneously sent by the OFDMA mechanism to indicate that the station has uplink data to be transmitted.
  • the first indication message can quickly know which stations have uplink data to send, which improves the efficiency of querying the site, thereby improving the efficiency of channel resource allocation; at the same time, the access point can reasonably allocate the sites according to actual conditions.
  • the uplink channel resources are beneficial to save channel resources and system overhead.
  • the access point indicates that the random access resource block is included in the uplink scheduling period of the channel resource in the downlink frame, and the access point passes the random access that is divided into several transmission resource units.
  • the resource block receives the first indication message sent by the station, and in an actual application, the access point indicates, in a physical frame header of the downlink frame, information that includes a random access resource block in an uplink scheduling period of the channel resource.
  • the access point receives the first indication message sent by the transmission resource unit corresponding to the sequence number according to a preset rule by the transmission resource unit divided into a plurality of sequence numbers, and the access point passes the
  • the identification information in an indication message verifies whether the first indication message is a valid first indication message.
  • the following is a description of the access point to the first indication message and the allocation of the channel resource. Referring to FIG. 8 , another embodiment of the access point for resource allocation in the embodiment of the present invention includes:
  • a first sending unit 801 configured to send a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate a channel at the access point for at least one station
  • the uplink scheduling period information is included, and the uplink access resource block allocated by the access point for the station (such as a period corresponding to the whole or part of the channel spectrum) and the physical frame in the downlink frame are included in the uplink scheduling period.
  • the header indicates the random access resource block information allocated by the access point included in the uplink scheduling period for the station, that is, the channel resource allocation is set according to the channel resource block window arranged in the uplink scheduling period in the physical frame header of the downlink frame. information.
  • the access point needs to allocate a certain channel resource window for the station (STA) scheduled to perform uplink transmission, so that the uplink scheduling station uses channel resources.
  • STA station
  • the ingress point has a higher priority of occupying the channel resource, so the access point (AP) first transmits the downlink scheduling frame or the data frame, and
  • the physical channel header of the downlink scheduling frame or the physical frame header of the downlink data frame sets uplink channel resource indication information according to the channel resource window corresponding to the uplink scheduling period.
  • the AP may include random access in the uplink scheduling period of the channel resource indicating the physical frame header or the physical frame data part of the downlink scheduling frame (or the downlink data frame).
  • the information of the resource block, the physical frame data part is the content of the MAC layer frame.
  • the station can randomly access or use the channel through channel resources (transmission resource units) in the channel resource window (random access resource block) of the three time slots.
  • a station (STA) that needs to use a channel may select one or more subchannels (ie, subcarriers) to transmit a message within a corresponding time slot.
  • the random access resource block may provide resource blocks for channel access and use for sites associated with the access point and unassociated sites.
  • the first receiving unit 802 includes a first receiving module 8021, configured to receive, by using one of the at least one transmission resource unit with the sequence number, the first station in the at least one site by using a predetermined rule The first indication message sent by the selected one of the at least one transmission resource unit with the sequence number;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block needs to be divided into several transmission resource units (such as several subchannels).
  • the divided transmission resource units may be preset with a sequence number for site selection.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the verification unit 803 specifically includes a calculation module 8031, configured to calculate a corresponding value of the identification information of the first site by using a preset rule;
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the hash algorithm calculates the identification information of the site to obtain a hash value, and the station can select a corresponding transmission resource unit by using the calculated hash value, such as a corresponding hash value as the serial transmission resource unit.
  • the identification information may be an association identifier of the site that contains 16 binary bits.
  • the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value containing 8 binary bits.
  • the verification unit 803 further includes a determining module 8032, configured to determine whether the corresponding value matches a sequence number of the transmission resource unit through which the access point receives the first indication message;
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to the unique corresponding value of the identification information of the site, for example, the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resources.
  • the unit is sorted in the order of 1-8, 9-16, 17-24, and the station can select the corresponding 8th transmission resource unit according to the corresponding value of the identification information of the station, such as "8", so the access point
  • the first indication message may be determined to be valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • the allocating unit 804 includes a first allocation module 8041, configured to allocate a preset length of uplink channel resources to the first station in an uplink scheduling period of the channel resources of the access point according to the first indication message; or
  • the first indication message further includes a size of an uplink channel resource required by the first station (or a size of cached data that the first station needs to transmit in the uplink), where the access point is according to the first indication message.
  • the size of the uplink channel resource required by the first station included in the first station is allocated to the first station during an uplink scheduling period of the channel resource of the access point;
  • the access point may assign each station a preset length of uplink according to the actual situation.
  • the channel resource for example, allocates 10ms of channel resources to each station on average. If the uplink buffer data of some stations fails to be transmitted at one time, the transmission may be continued in the next allocated channel resource, or when the first indication message is received. And when the uplink channel resource information required by the station is further included, the uplink channel resource information required by the station included in the first indication message may be used in an uplink scheduling period of the channel resource of the access point. Allocate the required uplink channel resources for the site.
  • the access point after receiving the first indication message sent by the station, calculates the corresponding value of the identifier information of the site, and determines whether the corresponding value is corresponding to the sequence number of the transmission resource unit.
  • An indication of the validity of the message such that the access point performs a verification process on the first indication message sent by the station, ensuring that the received message is accurate, and avoiding that the access point may receive the wrong first
  • the indication message unreasonably allocates channel resources.
  • the access point allocates a preset length of the uplink channel resource to the station according to the first indication message, or allocates the required channel to the station according to the uplink resource requirement included in the first indication message. Resources, in this way, improve the efficiency of information transmission.
  • the access point verification site the resource is allocated to the site according to the first indication message.
  • the access point may further acquire the required uplink of the site. Channel resources, and then allocate resources to the stations according to the required uplink channel resources.
  • the following describes the access resources needed by the access point to acquire the uplink channel resources of the station and allocate resources according to the required uplink channel resources.
  • another embodiment of an access point for resource allocation in an embodiment of the present invention includes:
  • the first sending unit 901 is configured to send a first downlink frame, where the first downlink frame includes first indication information, where the first indication information is used to indicate at least one station in a physical frame header of the downlink frame.
  • Information of a random access resource block included in an uplink scheduling period of a channel resource of the access point, where the random access resource block includes at least one transmission resource unit, and the at least one transmission resource unit is used for the at least one One station sends a first indication message;
  • the uplink scheduling period information is included, and the uplink access resource block (the time period corresponding to the whole or part of the channel spectrum) allocated by the access point for the station is included in the uplink scheduling period, and the physical frame header of the downlink frame is included in the downlink scheduling period.
  • the department indicates that the access point included in the uplink scheduling period is the random access resource block information allocated by the station, that is, the channel resource allocation information is set according to the channel resource block window arranged in the uplink scheduling period in the physical frame header of the downlink frame. .
  • the uplink scheduling period is the random access resource block information allocated by the station, that is, the channel resource allocation information is set according to the channel resource block window arranged in the uplink scheduling period in the physical frame header of the downlink frame.
  • the access point needs to allocate a certain channel resource window for the station (STA) scheduled to perform uplink transmission, so that the uplink scheduling station uses channel resources.
  • the ingress point has a higher priority of occupying the channel resource, so the access point (AP) first transmits the downlink scheduling frame or the data frame, and the physical frame header of the downlink scheduling frame or the physical frame of the downlink data frame.
  • the header sets the uplink channel resource indication information according to the channel resource window corresponding to the uplink scheduling period.
  • the AP may be in a physical frame header or a physical frame data part of a downlink scheduling frame (or a downlink data frame).
  • the physical frame data part indicates that the uplink scheduling period of the channel resource includes the information of the random access resource block, and the physical frame data part is the content of the MAC layer frame, such as in the SIG (signal) area of the downlink scheduling frame header.
  • the three binary bits "011" indicate that there is a channel resource window containing three time slots at the beginning of the uplink channel resource scheduling period, and the station can pass the channel resource window of the three time slots (random access)
  • a channel resource (transmission resource unit) in a resource block randomly accesses or uses a channel, and a station (STA) that needs to use a channel can select one or more subchannels (ie, subcarriers) to transmit a message in a corresponding time slot.
  • the random access resource block may provide resource blocks for channel access and use for sites associated with the access point and unassociated sites.
  • the first receiving unit 902 includes a first receiving module 9021, configured to receive, by using one of the at least one transmission resource unit with a sequence number, the first station in the at least one site by using a predetermined rule The first indication message sent by the selected one of the at least one transmission resource unit with the sequence number;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block such as the channel resource window
  • the divided transmission resource units may be preset with a sequence number, for example, the subcarrier groups are sequentially numbered from 1 to the first subchannel, the second subchannel, the third subchannel, etc. according to the frequency level to provide a site. select.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the verification unit 903 specifically includes a calculation module 9031, configured to calculate a corresponding value of the identification information of the first site by using a preset rule;
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the hash algorithm calculates the identification information of the site to obtain a hash value, and the station can select a corresponding transmission resource unit by using the calculated hash value, such as a corresponding hash value as the serial transmission resource unit.
  • the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the verification unit 903 further includes a determining module 9032, configured to determine whether the corresponding value matches a sequence number of the transmission resource unit through which the access point receives the first indication message;
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to the unique corresponding value of the identification information of the site
  • the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resources.
  • the unit is sorted in the order of 1-8, 9-16, 17-24, and the station can select the corresponding 8th transmission resource unit according to the corresponding value of the identification information of the station, such as "8", so the access point
  • the first indication message may be determined to be valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • a second sending unit 904 configured to send, by using one of the transmission resource units, the first indication message sent by the first station, to send, by using the first station, a second downlink frame, where
  • the second downlink frame includes second indication information, where the second indication information is used to indicate, for the first station, a channel resource used by the first station to send a second indication message; Describe the size of the uplink channel resource required by the first station or the size of the buffer data that the first station needs to transmit in the uplink;
  • the access point After receiving the first indication message, the access point indicates the uplink buffer data or the management and control message to be sent in the station, and after determining that the first indication message is valid, the access point may send the uplink channel resource scheduling to the station.
  • the second downlink frame of the information indicates that the station sends the buffered data size information or the required uplink channel resource information to the access point on the channel resource indicated by the second indication information.
  • the second receiving unit 905 is configured to receive the second indication message that is sent by the first station according to the channel resource indicated by the second indication information
  • the second indication message that is sent by the access point to receive the uplink channel resource information required by the station may also be received.
  • the first indication message is received in a manner.
  • the second indication message carries the identifier information of the site, and the access point can verify the second indication message again, and details are not described herein.
  • the station carries the required uplink channel resource size information by using the second indication message, and the comparison station directly carries the required uplink channel resource size information in the first indication message, and reduces the scheme.
  • the channel resource occupied by the station sending the first indication message is reduced for transmission Transmitting the size of the transmission resource unit of the first indication message, so that a smaller number of random access channel resource blocks can be occupied on the premise that an equal number of stations (STAs) are sent, because not every allocation
  • the random access channel resource blocks can all be used (the stations that depend on how many uplink transmission requirements are needed, and the number of access points are not known in advance), so a small transmission resource for transmitting the first indication message is allocated.
  • the unit helps to reduce the size of the random access channel resource block and improve the channel usage efficiency of the entire communication system.
  • the allocating unit 906 includes a second allocating module 9061, configured to use, according to the size of the uplink channel resource required by the first station included in the second indication message, or the size of the cached data to be uplink transmitted by the first station, Allocating an uplink channel resource to the first station in an uplink scheduling period of the channel resource of the access point;
  • the access point may be based on actual conditions.
  • Each station is allocated an uplink channel resource of a corresponding size.
  • the access point after receiving the indication message that the site has the uplink buffer data, the access point further obtains the required uplink channel resource information of the station, and may allocate the corresponding size to the site according to the uplink channel resource information required by the station.
  • the channel resources are such that the channel resources are rationally utilized and the transmission efficiency is improved.
  • the access point indicates that the access point includes the information of the random access resource block in the uplink scheduling period of the channel resource in the physical frame header of the downlink frame.
  • the access point may also be in the downlink.
  • the SIG field of the frame physical frame header or in the MAC layer frame a plurality of flag bits and indicator bits are used to indicate that the random access resource block is included in the uplink scheduling period of the channel resource, and the access point is in the downlink frame.
  • the SIG field of the physical frame header or the information indicating that the random access resource block is included in the uplink scheduling period of the channel resource by using the flag bit and the indication bit in the MAC layer frame is specifically described. Referring to FIG. 10, the present invention is shown in FIG. Another embodiment of an access point for resource allocation in an embodiment includes:
  • the first sending unit 1001 includes a first sending module 10011, configured to send a first downlink frame, and carry a flag and an indication in a SIG field or a physical frame data part of a physical frame header of the first downlink frame. a bit, the flag bit is used to indicate that a random access resource block is included in an uplink scheduling period of the channel resource, where the indicator bit is used to indicate information of a random access resource block, and the random access resource block includes at least one Transmitting a resource unit, where the transmission resource unit is used by the station to send a first indication message;
  • the uplink scheduling period information is included, and the random access resource block allocated by the access point to the station is included in the uplink scheduling period, such as a period corresponding to the whole or part of the channel spectrum, and the physical frame header in the downlink frame.
  • the part indicates the random access resource block information allocated by the access point included in the uplink scheduling period to the station, that is, in the SIG field of the physical frame header of the downlink frame or in the MAC layer frame according to the uplink scheduling period.
  • the channel resource block window sets channel resource allocation information.
  • STA station
  • the ingress point has a higher priority of occupying the channel resource, so the access point (AP) first transmits the downlink scheduling frame or the data frame, and the physical frame header of the downlink scheduling frame or the physical frame of the downlink data frame.
  • the header sets the uplink channel resource indication information according to the channel resource window corresponding to the uplink scheduling period.
  • the AP may include random access in the uplink scheduling period of the channel resource indicating the physical frame header or the physical frame data part of the downlink scheduling frame (or the downlink data frame).
  • the information of the resource block, the physical frame data part is the content of the MAC layer frame.
  • the random access resource block may provide a resource block for channel access for the site associated with the access point and the unassociated site.
  • the first receiving unit 1002 includes a first receiving module 10021, configured to: when the flag bit indicates that the uplink scheduling period includes a random access resource block, by transmitting one of the at least one transmission resource unit with a sequence number Receiving, by the station, the first indication message sent by one transmission resource unit selected from the at least one transmission resource unit with the sequence number according to a preset rule;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block (such as the channel resource window) needs to be divided into several transmission resource units, that is, several subchannels.
  • the divided transmission resource units may be preset with a sequence number for site selection.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the verification unit 1003 specifically includes a calculation module 10031, configured to calculate, by using a preset rule, a corresponding value of the identification information of the first site;
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the hash algorithm calculates the identification information of the site to obtain a hash value, and the station can select a corresponding transmission resource unit by using the calculated hash value, such as a corresponding hash value as the serial transmission resource unit.
  • the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the verification unit 1003 further includes a determining module 10032, configured to determine whether the corresponding value matches a sequence number of the transmission resource unit through which the access point receives the first indication message;
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to the unique corresponding value of the identification information of the site
  • the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resources.
  • the unit is sorted in the order of 1-8, 9-16, 17-24, and the station can select the corresponding 8th transmission resource unit according to the corresponding value of the identification information of the station, such as "8", so the access point
  • the first indication message may be determined to be valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • the second sending unit 1004 is configured to send a second downlink frame to the station after receiving the first indication message sent by the first station by using one of the transmission resource units, where And the second indication information is used to indicate, by the first station, a channel resource that is used by the first station to send a second indication message, where the second indication message carries the The size of the uplink channel resource required by a station or the size of the cache data to be uplink transmitted by the first station;
  • the access point After receiving the first indication message, the access point indicates the uplink buffer data or the management and control message to be sent in the station, and after determining that the first indication message is valid, the access point may send the uplink channel resource scheduling to the station.
  • the second downlink frame of the information indicates that the station sends the buffered data size information or the required uplink channel resource information to the access point on the channel resource indicated by the second indication information.
  • the second receiving unit 1005 is configured to receive the second indication message that is sent by the first station according to the channel resource indicated by the second indication information;
  • the second indication message that is sent by the access point to receive the uplink channel resource information required by the station may also be received.
  • the first indication message is received in a manner.
  • the second indication message carries the identifier information of the site, and the access point can verify the second indication message again, and details are not described herein.
  • the station carries the required uplink channel resource size information by using the second indication message, and the comparison station directly carries the required uplink channel resource size information in the first indication message, and reduces the scheme.
  • the channel resource occupied by the first identifier message is sent by the station, that is, the size of the transmission resource unit used for transmitting the first indication message is reduced, so that the same number of stations (STAs) are sent to send the first indication message.
  • STAs stations
  • the allocating unit 1006 includes a second allocating module 10061, configured to: according to the size of the uplink channel resource required by the first station included in the second indication message or the size of the cached data that needs to be uplinked by the first station, Allocating an uplink channel resource to the first station in an uplink scheduling period of the channel resource of the access point;
  • the access point may be based on actual conditions.
  • Each station is allocated an uplink channel resource of a corresponding size.
  • the access point allocates resources for sending initial network access messages (such as probe request, probe request, association request, etc.), and the access point allocates these sites.
  • initial network access messages such as probe request, probe request, association request, etc.
  • the associated association identifier can be used as the association identifier of the site when the uplink transmission indicator is sent by the site.
  • the temporary identification information obtained by the site in the identification space is used as the association identifier of the site.
  • an unassociated site selects a temporary association identifier consisting of sixteen binary digits in the temporary identification space. The corresponding decimal value is "100", and the site selects the transmission whose serial number is "100".
  • the resource unit sends the first indication message.
  • the sequence number “100” may be used as the association identifier of the site.
  • the access point may also indicate the random access resource block included in the uplink scheduling period of the channel resource by using the flag bit and the indicator bit in the SIG field of the physical frame header of the downlink frame or in the MAC layer frame.
  • the time and size information corresponding to the resource block is used to indicate the start frequency, the end frequency, the start time, and the end time of the random access resource block; the size information is used to indicate the random access resource block (such as the channel resource window window)
  • an embodiment of a site for resource allocation in an embodiment of the present invention includes:
  • the third receiving unit 1101 is configured to receive a first downlink frame sent by the access point, where the first downlink frame includes first indication information, where the first indication information is used to at least include the site One station indicates information of a random access resource block included in an uplink scheduling period of a channel resource of the access point, the random access resource block includes at least one transmission resource unit, and the at least one transmission resource unit is used for Sending, by the at least one station, a first indication message indicating that the station has an uplink channel resource requirement;
  • the information including the uplink scheduling period includes the random access resource block allocated by the access point for the station in the uplink scheduling period (such as a period corresponding to the whole or part of the channel spectrum), Specifically, the address of the random access resource block allocated by the access point included in the uplink scheduling period for the station may be indicated in the head of the downlink frame, that is, the channel resource window indication arranged according to the uplink scheduling period in the header of the downlink frame.
  • the access point determines the information of the channel resource window included in the uplink scheduling period before receiving the uplink frame sent by the station in the uplink scheduling period.
  • the selecting unit 1102 is configured to select one transmission resource unit from the random access resource blocks;
  • the station Because the transmission resource unit is used by the station to send the first indication message, and the transmission resource unit is divided into multiple, the station must select one transmission resource unit from the plurality of transmission resource units for transmitting the first indication message.
  • a third sending unit 1103, configured to send, by using the selected transmission resource unit, the first indication message to an access point, where the first indication message includes identifier information of the site, so that the access point verification office
  • the uplink channel resource is allocated to the station in an uplink scheduling period of the channel resource of the access point according to the first indication message
  • the access point can reasonably allocate the uplink channel resources of each station according to actual conditions.
  • the station after receiving the information of the random access block resource included in the uplink scheduling period of the channel resource of the access point that is sent by the access point, the station is selected to be divided into several transmission resource units. a transmission resource unit, the station transmitting, by the transmission resource unit, a first indication message to the access point for indicating that the station has an uplink channel resource requirement. In this way, the station sends a first indication message for indicating that the station has an uplink channel resource requirement to the access point by using the transmission resource unit, and the access point may allocate the uplink channel resource of the station by using the first indication message.
  • the station is configured to select one transmission resource unit from the division into a plurality of transmission resource units, and the station sends, by using the transmission resource unit, an access point to indicate that the station has an uplink channel resource requirement.
  • the first indication message in an actual application, the station may also select a transmission resource unit by using a preset rule, and the station may further send a second indication message carrying the required uplink channel resource information to the access point.
  • the site may obtain temporary identification information from the identification space as the identification information of the site to implement the above method.
  • the identity information of the site refers to an Association Identity (AID) assigned by the access point.
  • AID Association Identity
  • the following is a detailed description of the device that obtains the temporary identification information from the identifier space and selects the transmission resource unit to send the first indication message to the access point according to the preset rule. Referring to FIG. 12, the embodiment of the present invention is described.
  • Another embodiment of a site for resource allocation includes:
  • the third receiving unit 1201 is configured to receive a first downlink frame that is sent by the access point, where the first downlink frame includes first indication information, where the first indication information is used to at least include the site.
  • One station indicates information of a random access resource block included in an uplink scheduling period of a channel resource of the access point, the random access resource block includes at least one transmission resource unit, and the at least one transmission resource unit is used for Sending, by the at least one station, a first indication message indicating that the station has an uplink channel resource requirement;
  • the access point is included in the uplink scheduling period.
  • the random access resource block allocated by the point may specifically indicate, in the header of the downlink frame, the access point allocated by the access point included in the uplink scheduling period for the station.
  • Information, that is, in the header of the downlink frame, according to the channel resource window arranged in the uplink scheduling period, the random access resource block information allocated for the station is indicated, and the access point before receiving the uplink frame sent by the station in the uplink scheduling period Then, the information of the channel resource window included in the uplink scheduling period is determined.
  • the obtaining unit 1202 when the station does not include the identifier information associated with the access point, before the station selects one of the random access resource blocks, the station obtains the temporary identifier from the identifier space. Information for the station to select one transmission resource unit from the random access resource block by using the temporary identification information;
  • the site does not have an association identifier associated with the access point, the site itself cannot be authenticated and the message is verified. Therefore, the site not associated with the access point can obtain the temporary association identifier from the identifier space as the site. Identification information to follow the next steps.
  • the selecting unit 1203 includes a selecting module 12031, and calculating a corresponding value of the identification information of the site by using a preset rule, and selecting a serial number from the at least one transmission resource unit with a sequence number included in the random access resource block to correspond to the corresponding a transmission resource unit corresponding to the value;
  • the site and the access point may select the same preset rule to calculate the identification information, and obtain a corresponding value, such as the site passing through the
  • the algorithm calculates the identification information of the site to obtain a hash value, and the station can select the transmission resource unit of the corresponding sequence number by using the calculated hash value, such as the corresponding hash value as the transmission resource unit of the sequence number.
  • the identification information may be an association identifier of the station that includes 16 binary bits, and the correlation identifier of the 16 binary bits is calculated by a hash algorithm to obtain a value including 8 binary bits.
  • the station is a transmission resource unit with a unique corresponding sequence number selected according to a unique corresponding value of the identification information of the site.
  • the random access resource block is a channel resource window of three time slots, and each channel resource window is divided into eight transmission resource units. Then, according to the order of 1-8, 9-16, 17-24, the station can select the corresponding transmission resource unit of the corresponding serial number according to the corresponding value of the identification information of the site, such as "8", so the access point can Determining whether the first indication message is valid by determining whether the corresponding value calculated by the identifier information of the received station matches the sequence number of the transmission resource unit, if the corresponding value can be transmitted with the first indication message by using the transmission resource unit.
  • the access point receives the first indication message transmitted by the transmission resource unit No. 8, and calculates that the corresponding value of the association information of the site in the first indication message is “8”, indicating the corresponding value of the association information of the site. Matches the serial number of the transmission unit.
  • the third sending unit 1204 is configured to send, by using the selected transmission resource unit, the first indication message to the access point, where the first indication message includes identifier information of the site, so that the access point verification office
  • the uplink channel resource is allocated to the station in an uplink scheduling period of the channel resource of the access point according to the first indication message;
  • the first indication message is used to indicate that the station has an uplink channel resource requirement.
  • the signal is interacted with a wave of a fixed frequency. This process is called loading.
  • a fixed frequency wave is called carrier frequency, a group of sub-bands.
  • the carrier is a subchannel.
  • the random access resource block (such as the channel resource window) needs to be divided into several transmission resource units, that is, several subchannels.
  • the divided transmission resource units may be preset with a sequence number, for example, the subcarrier groups are sequentially numbered from 1 to the first subchannel, the second subchannel, the third subchannel, etc. according to the frequency level to provide a site. select.
  • the first indication message includes identifier information of the station, or identifier information of the station, and uplink channel resource information required by the station.
  • the fourth receiving unit 1205 is configured to: after sending the first indication message to the access point by using the selected transmission resource unit, receive a second downlink frame sent by the access point, where the second downlink frame includes Two indication information, where the second indication information is used by the access point to indicate, for the station, a channel resource used by the station to send a second indication message; and the second indication message carries an uplink required by the station.
  • the access point After receiving the first indication message, the access point indicates the uplink buffer data or the management and control message to be sent in the station, and after determining that the first indication message is valid, the access point may send the uplink channel resource scheduling to the station.
  • the second downlink frame of the information indicates that the station sends the buffered data size information or the required uplink channel resource information to the access point on the channel resource indicated by the second indication information.
  • the fourth sending unit 1206 is configured to send, according to the channel resource indicated by the second indication information, the second indication message to the access point;
  • the access point may be given in the uplink scheduling period of the channel resource of the access point according to the size of the uplink channel resource required by the station included in the second indication message.
  • the station allocates the required uplink channel resources. It should be noted that the site is passed in this step.
  • the second indication message carries the required uplink channel resource size information
  • the comparison station directly carries the information of the required uplink channel resource size in the first indication message, which reduces the channel resource occupied by the station sending the first indication message. That is, the size of the first indication message transmission resource unit is reduced, that is, the size of the transmission resource unit for transmitting the first indication message is reduced, so that the condition that the same number of stations (STAs) are sent to transmit the first indication message is satisfied.
  • STAs stations
  • a smaller random access channel resource block can be occupied, because not every allocated random access channel resource block can be used all at all (requires a station that depends on how many uplink transmission requirements, and this number of access points) It is not known in advance), so allocating a small transmission resource unit for transmitting the first indication message helps to reduce the size of the random access channel resource block and improve the channel use efficiency of the entire communication system.
  • the site obtains the temporary identifier information, so that the site that is not associated with the access point has a temporary identifier information, and the corresponding value can be calculated according to the preset rule according to the identifier information, and then the corresponding value is selected according to the corresponding value.
  • Matching the transmission resource unit of the sequence number so that the access point allocates the channel resource to the site; after the station sends the indication message that the site has the uplink buffer data to the access point, the site further needs to send the site to the access point.
  • the uplink channel resource information the access point can allocate corresponding channel resources to the station according to the uplink channel resource information required by the station, so that the channel resources are rationally utilized and the transmission efficiency is improved.
  • FIG. 7 to FIG. 10 illustrates the specific structure of the access point device from the perspective of the functional unit.
  • the specific structure of the access point device is described from the hardware point of view below with reference to the embodiment shown in FIG. 13:
  • the access point device includes a transmitter 1301, a receiver 1302, a processor 1303, and a memory 1304.
  • the access point device may have more or less components than those shown in FIG. 13, may combine two or more components, or may have different component configurations or settings, and each component may Hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the transmitter 1301 is configured to send a first downlink frame to the station, where the first downlink frame includes first indication information, where the first indication information is used to indicate at the access point for the at least one site Information of a random access resource block included in an uplink scheduling period of the channel resource, the random access resource block includes at least one transmission resource unit, and the at least one transmission resource unit is configured to send the first indication by the at least one station Message
  • the receiver 1302 by using one of the at least one transmission resource unit, receiving the first indication message sent by the first station in the at least one station;
  • the first indication message is used to indicate that the first station has an uplink channel resource requirement, and the first indication message includes identifier information of the first station;
  • the processor 1303 is configured to verify whether the first indication message is a valid first indication message, and if yes, according to the first indication message, in an uplink scheduling period of the channel resource of the access point, The first station allocates uplink channel resources.
  • the transmitter 1301 is configured to send, after the receiver 1302 receives the first indication message sent by the first station, a second downlink frame to the first station, where
  • the second downlink frame includes second indication information, where the second indication information is used to indicate, for the first station, a channel resource used by the first station to send a second indication message; Describe the size of the uplink channel resource required by the first station or the size of the buffer data that the first station needs to transmit in the uplink;
  • the receiver 1302 is further configured to receive the second indication message that is sent by the first station according to the channel resource indicated by the second indication information;
  • the processor 1303 is further configured to: according to the size of the uplink channel resource required by the first station included in the second indication message or the size of the cache data to be uplink transmitted by the first station, The first station is allocated an uplink channel resource in an uplink scheduling period of the inbound channel resource.
  • the processor 1303 receives the first indication message that is sent by multiple sites in parallel to indicate that the station has uplink data to be transmitted, and can quickly know which sites have uplink data to send, thereby improving the efficiency of the query, and further The efficiency of channel resource allocation is improved.
  • the access point can allocate the uplink channel resources of each station reasonably according to the actual situation, which is beneficial to save channel resources and system overhead.
  • FIG. 11 to FIG. 12 illustrates the specific structure of the site device from the perspective of the functional module.
  • the specific structure of the site device is described from the hardware point of view below with reference to the embodiment shown in FIG. 14:
  • the site device includes a receiver 1401, a transmitter 1402, a processor 1403, and a memory 1404.
  • the site device may have more or less components than those shown in FIG. 14, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software or one or more signal processing and/or application specific integrated circuits A combination of hardware and software implementation.
  • the receiver 1401 is configured to receive a first downlink frame that is sent by an access point, where the first downlink frame includes first indication information, where the first indication information is used to be at least one that includes the site.
  • the station indicates information of a random access resource block included in an uplink scheduling period of a channel resource of the access point, where the random access resource block includes at least one transmission resource unit, where the at least one transmission resource unit is used for Said at least one station sending a first indication message indicating that the station has an uplink channel resource requirement;
  • the processor 1403 is configured to select one transmission resource unit from the random access resource blocks;
  • the transmitter 1402 is configured to send, by using the selected transmission resource unit, the first indication message to an access point, where the first indication message includes identifier information of the site, so that the access point verifies the When the first indication message is a valid first indication message, the uplink channel resource is allocated to the station in an uplink scheduling period of the channel resource of the access point according to the first indication message.
  • the processor 1403 is further configured to determine, after the receiver 1401 receives the first downlink frame sent by the access point, whether the identifier information is included in the identifier, and if not, the slave identifier The temporary identification information is obtained, and the identification information of the site is specifically the temporary identification information.
  • the processor 1403 is further configured to: after the receiver 1401 receives the first downlink frame sent by the access point, calculate a corresponding value of the identifier information of the site by using a preset rule;
  • the receiver 1401 is further configured to: after sending the first indication message to the access point by using the selected transmission resource unit, receive a second downlink frame sent by the access point, where the second downlink frame includes Two indication information, where the second indication information is used by the access point to indicate, for the station, a channel resource used by the station to send a second indication message; and the second indication message carries an uplink required by the station.
  • the transmitter 1402 is further configured to send the second indication message to the access point according to the channel resource indicated by the second indication information, so that the access point is included according to the second indication message.
  • the size of the uplink channel resource required by the station and allocates the required uplink channel resource to the station during an uplink scheduling period of the channel resource of the access point;
  • the processor 1403 transmits the uplink channel resources required by the station to the access point through the transmitter 1402, thereby improving the efficiency of channel resource allocation.
  • the scheduling frame sets 3 time slots, and the scheduling frame header
  • the SIG is set to a binary "011" of three bits, one STA is STA H, STA H has uplink buffer data 20Kb, and STA H and AP associated identifier AID is 5.
  • STA H and AP associated identifier AID is 5.
  • the AP divides the three columns of time slots into 30 subchannels, and the subchannel order is arranged from 1 to 30, STA H calculates the AID 5 through the hash algorithm, and obtains the hash value of 20, then selects the 20th subchannel, and STA H will contain
  • the AID 5 and the first indication message indicating that the STA has the uplink buffer data are sent to the AP through the 20th subchannel, and the AP receives the first indication message that multiple STAs send in parallel through the OFDMA mechanism, and obtains the 20th subchannel.
  • the AID 5 of the STA H included in the received message is then used to calculate the hash value of the AID 5 using the same hash algorithm as that used by the STA H to select the subchannel, to obtain a hash value of 20, and to receive the included AID.
  • the sequence number 20 of the corresponding sub-channel of the message of 5 is compared to see whether it is consistent. If the first-information message of the uplink-cached data is determined to be a valid first indication message, the AP sends an acknowledgment message to the STA H, and the STA H receives the acknowledgment message.
  • the size of the uplink buffer data is sent to the AP, and the AP allocates 20Kb of channel resources for the STA H.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé d'attribution de ressources, un point d'accès et une station, qui sont utilisés pour attribuer de manière rationnelle et efficace des ressources de canal de liaison montante. Le procédé comprend les étapes suivantes : un point d'accès envoie une première trame de liaison descendante, la première trame de liaison descendante contenant des premières informations d'indication, les premières informations d'indication sont utilisées pour indiquer à une station des informations concernant un bloc de ressources d'accès aléatoire contenu dans une ressources de canal, le bloc de ressources d'accès aléatoire comprend au moins une unité de ressources de transmission, et l'unité de ressources de transmission est utilisée pour envoyer un premier message d'indication par la station ; le point d'accès reçoit le premier message d'indication envoyé par la station par l'intermédiaire de l'unité de ressources de transmission, le premier message d'indication indiquant que la station a une demande de ressources de canal de liaison montante ; le point d'accès vérifie si le premier message d'indication est valide ; et si tel est le cas, une ressource de canal de liaison montante est alors attribuée à la station selon le premier message d'indication. De cette manière, l'efficacité d'interrogation est améliorée et, par conséquent, l'efficacité d'attribution de ressources de canal est améliorée ; et d'autre part, un point d'accès peut attribuer de manière rationnelle des ressources de canal de liaison montante de stations différentes selon les situations actuelles, ce qui économise des ressources de canal et empêche tout surdébit.
PCT/CN2014/093730 2014-12-12 2014-12-12 Procédé d'attribution de ressources, point d'accès et station Ceased WO2016090643A1 (fr)

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CN108811169B (zh) * 2017-04-28 2023-05-23 中兴通讯股份有限公司 一种网络接入的方法和装置
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CN113747589B (zh) * 2020-05-29 2024-05-14 华为技术有限公司 数据传输方法、装置及系统、计算机可读存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101742680A (zh) * 2005-09-12 2010-06-16 高通股份有限公司 在无线通信系统中以反方向授予进行调度
CN102013959A (zh) * 2010-12-01 2011-04-13 北京新岸线无线技术有限公司 一种实现多用户调度的通信方法及无线通信系统
WO2013165582A1 (fr) * 2012-04-30 2013-11-07 Interdigital Patent Holdings, Inc. Procédé et appareil de prise en charge d'opérations d'attribution de ressources à base de blocs orthogonaux coordonnée (cobra)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2632552T3 (es) * 2010-05-26 2017-09-14 Lg Electronics Inc. Procedimiento y aparato de transmisión y recepción de datos en un sistema LAN inalámbrico
KR101859218B1 (ko) * 2011-12-20 2018-05-17 한국전자통신연구원 통신 시스템에서 자원 할당 장치 및 방법
CN104039013B (zh) * 2013-03-06 2019-05-17 中兴通讯股份有限公司 资源分配信息处理方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101742680A (zh) * 2005-09-12 2010-06-16 高通股份有限公司 在无线通信系统中以反方向授予进行调度
CN102013959A (zh) * 2010-12-01 2011-04-13 北京新岸线无线技术有限公司 一种实现多用户调度的通信方法及无线通信系统
WO2013165582A1 (fr) * 2012-04-30 2013-11-07 Interdigital Patent Holdings, Inc. Procédé et appareil de prise en charge d'opérations d'attribution de ressources à base de blocs orthogonaux coordonnée (cobra)

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