WO2015054859A1 - 一种用户数据传输方法、装置及网络设备 - Google Patents

一种用户数据传输方法、装置及网络设备 Download PDF

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Publication number
WO2015054859A1
WO2015054859A1 PCT/CN2013/085369 CN2013085369W WO2015054859A1 WO 2015054859 A1 WO2015054859 A1 WO 2015054859A1 CN 2013085369 W CN2013085369 W CN 2013085369W WO 2015054859 A1 WO2015054859 A1 WO 2015054859A1
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WIPO (PCT)
Prior art keywords
user
users
group
information
long training
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PCT/CN2013/085369
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English (en)
French (fr)
Inventor
刘亚林
张佳胤
罗毅
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华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201811425289.6A priority Critical patent/CN109495851B/zh
Priority to CN201380076309.2A priority patent/CN105165098B/zh
Priority to PCT/CN2013/085369 priority patent/WO2015054859A1/zh
Publication of WO2015054859A1 publication Critical patent/WO2015054859A1/zh
Priority to US15/130,598 priority patent/US10602318B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/24Traffic characterised by specific attributes, e.g. priority or QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/50Queue scheduling
    • H04L47/62Queue scheduling characterised by scheduling criteria
    • H04L47/625Queue scheduling characterised by scheduling criteria for service slots or service orders
    • H04L47/6275Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/10Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/104Grouping of entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/535Tracking the activity of the user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/04Scheduled access
    • H04W74/06Scheduled access using polling

Definitions

  • the present invention relates to the field of wireless network technologies, and in particular, to a user data transmission method, apparatus, and network device.
  • BACKGROUND With the widespread application of smart terminals, the demand for network traffic is increasing. In order to meet the needs of people who can access the Internet anytime and anywhere, it is necessary to improve the performance of the network system. Based on this, wireless fidelity in the wireless local area network (Wi-Fi)
  • Wi-Fi wireless local area network
  • Wi-Fi wireless local area network
  • IEEE 802.11 ⁇ there are distributed coordination function (DCF), point coordination function (PCF), hybrid coordination function (HCF), and strong distributed channel access.
  • DCF distributed coordination function
  • PCF point coordination function
  • HCF hybrid coordination function
  • EDCA enhanced distributed channel access
  • each user accesses the channel through competition, and only users competing for the channel can transmit data
  • in the point coordination function after receiving the polling of the access point (AP, access point) The data transmission starts, and the transmission duration is one frame.
  • the hybrid coordination function after receiving the polling of the AP, the user starts to transmit data, and the transmission duration is one or more frames.
  • the AP can only ask one user at a time whether there is a scheduling request, that is, only one user can be requested to have data transmission at a time, and the user transmission is increased. The delay of the data reduces the quality of service of the system.
  • a user data transmission method, apparatus, and network device are provided to solve the problem in the prior art that only one user can be requested to have a scheduling request at a time, resulting in an increase in invalid polling probability and a delay in user data transmission.
  • the first aspect provides a user data transmission method, where the method includes: sending a multicast frame for acquiring a user scheduling request to a user in a user group, where the multicast frame includes: all users in the user group Assigning a long training sequence and a spreading sequence; receiving a user scheduling request feedback from a user having data transmission in the user group, wherein the user scheduling request is a long training sequence that the user uses to allocate the user and At least one of the spreading sequences is fed back; scheduling transmission of user data in accordance with the user scheduling request.
  • the method further includes: acquiring user information and system information, where the system information includes: a number of users associated with the access point AP; The number of users associated with the AP is grouped, and the user group number is set; a long training sequence and a spreading sequence are assigned to users in each user group.
  • the user information includes at least one of the following: a service type of the user, an association identifier information AID of the user, and a user. Location information.
  • the user in each user group is assigned a long training sequence, including: for all user groups The users in the same time are assigned the same long training sequence; or, different base sequences are selected as long training sequences for different user groups, and different shifts of the same base sequence are used as long training sequences for different users in the same user group.
  • the spreading sequence is allocated to the user in each user group, including: Users in the same user group are assigned orthogonal spreading sequences; each group of users in different user groups are assigned orthogonal spreading sequences or non-orthogonal spreading sequences, or the same spreading sequence.
  • the multicast frame further includes: indicating the user The identity of the group's user information.
  • the representative of the user group includes: a group number of the user group, AID information of the user in the user group, or a base sequence identifier of the long training sequence of the user in the user group.
  • the method further includes: receiving The feedback information of the multicast frame sent by the user without data transmission in the user group.
  • the second aspect provides a user data transmission apparatus, including: a sending unit, configured to send, to a user in a preset user group, a multicast frame that acquires a user scheduling request, where the multicast frame includes: a long training sequence and a spreading sequence assigned by a user in the group; a first receiving unit, configured to receive a user scheduling request that is fed back by a user with data transmission in the user group; wherein the user scheduling request is the user And transmitting, by using at least one of a long training sequence and a spreading sequence allocated for the user; and a scheduling unit, configured to schedule transmission of user data according to the user scheduling request.
  • a sending unit configured to send, to a user in a preset user group, a multicast frame that acquires a user scheduling request, where the multicast frame includes: a long training sequence and a spreading sequence assigned by a user in the group
  • a first receiving unit configured to receive a user scheduling request that is fed back by a user with data transmission in the user group; wherein the user
  • the method further includes: an acquiring unit, configured to acquire user information and system information, where the system information includes: a number of users associated with the access point AP; And grouping the number of users associated with the AP according to the user information, and setting a user group number; and an allocating unit, configured to allocate a long training sequence and a spreading sequence to users in each user group.
  • the user information acquired by the acquiring unit includes at least one of the following: a service type of the user, and a user Association The identification information AID and the location information of the user.
  • the allocating unit includes: a long training sequence allocating unit, configured to allocate the same one for all users Long training sequence; or different base sequences are selected as long training sequences for different user groups, and different shifts of the same base sequence are used as long training sequences for different users in the same user group; spreading sequence allocation unit is used for Assigning orthogonal spreading sequences to users in the same user group; assigning orthogonal spreading sequences or non-orthogonal spreading sequences or the same spreading sequence to each group of users in different user groups.
  • the multicast frame sent by the sending unit further includes: The identifier of the user information of the user group.
  • the sending unit sends the user group
  • the identifier of the user information includes: a group number of the user group, AID information of the user in the user group, or a base sequence identifier of the long training sequence of the user in the user group.
  • the method further includes: a second receiving unit, And a method for receiving feedback information of the multicast frame sent by a user without data transmission in the user group.
  • the third aspect provides a network device, including: a sender, configured to send, to a user in a user group, a multicast frame that obtains a user scheduling request, where the multicast frame includes: all users in the user group a long training sequence and a spreading sequence that are allocated; a receiver, configured to receive a user scheduling request that is fed back by a user with data transmission in the user group, where the user scheduling request is used by the user to allocate the user At least one of the long training sequence and the spreading sequence is fed back; a processor, configured to schedule transmission of user data according to the user scheduling request received by the transmitter.
  • the receiver is further configured to receive user information and a system.
  • the system information includes: a number of users associated with the access point AP; the processor, further configured to group the number of users associated with the AP according to the user information, and set a user group number; And assigning a long training sequence and a spreading sequence to the user in each user group, in combination with the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the receiver receives
  • the user information includes: the service type of the user, the associated identification information AID of the user, or the location information of the user.
  • the processor allocates a long training sequence to users in each user group, including: Users in all user groups are assigned the same long training sequence; or different base sequences are selected as long training sequences for different user groups; and different shifts of the same base sequence are used as long training for different users in the same user group. sequence.
  • the processor allocates a spreading sequence to a user in each user group.
  • the method includes: the processor allocates orthogonal spreading sequences for users in the same user group; assigns orthogonal spreading sequences or non-orthogonal spreading sequences to each group of users in different user groups, or the same spreading sequence .
  • the multicast frame sent by the sender is further An identifier indicating user information of the user group is included.
  • the receiver is further used Receiving feedback information of the multicast frame sent by a user without data transmission in the user group.
  • the AP can poll multiple users at one time, reduce the probability of invalid polling, acquire user scheduling requests of multiple users, and schedule transmission of user data according to the scheduling request of the user. Reduce the delay of data transmission users, thereby improving the system's service quality.
  • FIG. 1 is a flowchart of a method for transmitting user data according to an embodiment of the present invention
  • 1A is a schematic diagram of feedback information of all users according to an embodiment of the present invention.
  • FIG. 1B is a schematic diagram of a demand-only user feedback information according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an application example of a user data transmission method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a user data transmission apparatus according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another structure of a user data transmission apparatus according to an embodiment of the present invention
  • FIG. 5 is another schematic structural diagram of a user data transmission apparatus according to an embodiment of the present invention
  • the embodiment of the invention provides a method and a device for acquiring a user scheduling request, which are applied to a wireless local area network.
  • the AP groups the users associated with the group according to the preset rule, and then sends a multicast frame of the “acquisition user scheduling request” to the users in each group, and sends multiple users in each group after receiving the group. After the feedback information, the subsequent user data transmission is scheduled according to the feedback information.
  • multiple users can be polled at one time, the probability of invalid polling is reduced, and user scheduling requests of multiple users are simultaneously acquired, and the transmission of user data is adjusted according to the scheduling request of the user, and the data transmitting user is reduced. Delay, improve the quality of service of the system.
  • FIG. 1 is a flowchart of a method for acquiring a user scheduling request according to an embodiment of the present invention
  • the method includes: Step 101: Send, to a user in a user group, a multicast frame that acquires a user scheduling request, where the multicast frame includes: a long training sequence and a spreading sequence allocated for users in the user group;
  • the method may further include: the access point AP first acquiring user information and system information, where the system information includes: a user (or the number of STAs) associated with the AP; and then, according to the user information The number of users associated with the AP is grouped and the user group number is set; and then, the users in each user group are assigned a long training sequence and a spreading sequence.
  • the system information may include a BSS ID and the like in addition to the number of the STAs associated with the AP.
  • the other parameters may be included in the adaptation, which is not limited in this embodiment.
  • the user information includes: a service type of the user
  • the grouping the number of the users associated with the AP according to the user information including: according to the service type of the user
  • the users associated with the AP are grouped.
  • the method of grouping according to the service type of the user may be classified into a high priority service group, a medium priority service group, and a low priority service group according to the priority of the service; or a finer level distinction may be performed. It is divided into five groups, from priority 1 to priority 5.
  • a high-priority service group can have more data transmission opportunities than a low-priority service group.
  • an AP broadcasts a higher priority service group than a low priority service.
  • the priority level of the service type can be used as the group number, such as 01, 02, 03, etc., but is not limited thereto.
  • the user information includes: the user's associated identification information AID, the grouping the user associated with the AP according to the user information, including: performing, according to the user's AID, the user associated with the AP In this way, according to the manner in which the user AID is grouped, the users adjacent to the AID can be grouped into one group, for example, the first group of AIDs from 1 to 20, and so on.
  • the start address of the AID in the group can be used as the group number; the group number can also be set in a simple manner, such as 1, 2, 3, etc., but is not limited thereto.
  • the user information includes: location information of the user, the grouping the user associated with the AP according to the user information, including: according to the location information of the user, the user associated with the AP Line grouping.
  • the users in the adjacent position can be grouped into one group, or the users located in the same orientation of the AP (such as upper, lower, northeast, southwest, etc.) are grouped into one group. , so that the AP can use beamforming when sending broadcast information to a user group.
  • the group number in a relatively simple way, such as 1, 2, 3, etc., but it is not limited to this.
  • the group number is set.
  • the method for allocating a long training sequence to a user is exemplified by the following two methods, but is not limited thereto: Mode 1: It can be used according to the IEEE 802.ln or IEEE 802.l lac standard for all user groups.
  • a long training sequence may be allocated to different users according to the following rules. Rule 1: Different user groups use different base sequences as long training sequences; Rule 2: Different users in the same user group use different shifts of the same base sequence as long training sequences. It should be noted that the selection and use of the long training sequence is well known to those skilled in the art and will not be described herein.
  • allocating a spreading sequence to users in each user group includes: allocating orthogonal spreading sequences for users in the same user group; and assigning orthogonal spreading sequences to each group of users in different user groups.
  • a spreading sequence is allocated to users in each user group, and may also be referred to as assigning a spreading code to users in each user group.
  • the purpose of allocating the spreading code or the spreading sequence is: the user uses the allocated spreading code to feed back to the AP whether there is a message for data transmission; the purpose is that when multiple users of the same group simultaneously feed back the broadcast frame, the AP It can correctly demodulate the feedback information of each user. In the process of performing mode 2, two rules need to be observed. Rule 1: The spreading codes of different users in the same group must be orthogonal.
  • Rule 2 The spreading codes between users in different groups may not be orthogonal, or Orthogonal, can also be the same.
  • the target user area of the transmitted multicast frame includes a bit that can identify the group of user information. If the group is the i-th group, the i-th is added to the target user area of the multicast frame.
  • the group number of the group user, or, the AID information of the user of the i-th group is added, wherein there are two expression methods for the increase mode, one is to use the AID start value of the group of users and the number of users, and the other is Use a set of user's AID start and end values.
  • user grouping according to the AID is also required, so that each group of users can be identified by using the AID information.
  • the base sequence ID of the long training sequence can be used to identify each group of users.
  • the content of the other areas of the multicast frame in this embodiment may be specifically referred to the design method of the PCF polling frame in the IEEE 802. l lac, and details are not described herein again.
  • the AP may send a multicast frame (or multicast information) by using beamforming. It should be noted that the modulation and coding mode and the transmission power of the multicast frame need to ensure that all users in the group can receive and correctly demodulate the content of the multicast frame.
  • Step 102 Receive a user scheduling request that is fed back by a user with data transmission in the user group, where the user scheduling request is at least one of a long training sequence and a spreading sequence allocated by the user for the user.
  • the user scheduling request is at least one of a long training sequence and a spreading sequence allocated by the user for the user.
  • One for feedback That is to say, if all users use the same long training sequence, the spreading sequence is used for feedback; if different users use different long training sequences, a long training sequence can be used for feedback.
  • each user in the user group uses the spreading code allocated by the system for the user to feed back information about whether the data is sent, so that multiple users in the same group can simultaneously
  • the AP can correctly demodulate the feedback information of each user.
  • the feedback information includes a user scheduling request; if there is no data to be sent, the feedback information is included. User scheduling information is not included.
  • the allocation of the spreading code may be performed in a multicast frame or may be performed before. That is to say, each user transmits its feedback information with its own spreading code for spreading.
  • Step 103 Schedule transmission of user data according to the user scheduling request.
  • the AP schedules transmission of user data according to the user scheduling request.
  • the AP obtains the user scheduling request of the corresponding user, and the AP processes the data transmission in the user group: if only one user has data to send, it may follow 802. l ln or 802. l lac
  • the mode is transmitted. If there are multiple users who need to send data, they can be scheduled by the AP, for example, by time-division, or by frequency division, each user allocates a certain bandwidth, so that it can simultaneously
  • the transmission may also be performed by assigning a resource block to each user by means of time division and frequency division, and allowing it to be transmitted at the same time by means of code division. Of course, other methods may be used.
  • the method is performed on the basis of the foregoing embodiment, where the method may further include: receiving, by the user in the user group, that the user does not have data transmission, responding to the multicast frame.
  • Feedback That is to say, in this embodiment, the user of the user group that needs to transmit data can feed back the user scheduling request to the AP, and the user without data transmission can also send feedback information without data transmission to the AP, so as to facilitate the AP.
  • FIG. 1A which is a schematic diagram of feedback information of all users according to an embodiment of the present invention
  • the user feedback information that the data needs to be transmitted is as shown in FIG. 1B , which is a schematic diagram of only the user feedback information required by the embodiment of the present invention.
  • FIG. 1A if the STAs STA1, STA2, and STA3 are in a group, after receiving the CF polling (CF-Poll) of the AP, if STA1 and STA3 have services to be sent, and STA2 has no service to send, according to the feedback mode.
  • CF-Poll CF polling
  • STAU STA2 and STA3 both need feedback information, in which STA1 and STA3 feed back scheduling request information (ie, Request Infor), and STA2 feeds back "no traffic transmission" information (ie, No Traffic) 0 as shown in Figure IB, if STA1 STA2 and STA3 are in a group.
  • STA1 and STA3 After receiving the CF-Poll of the AP, STA1 and STA3 have services to be sent, and STA2 has no service to send.
  • STA1 and STA3 feed back scheduling request information (Request Infor). STA2 does not feed back any information.
  • the feedback information of each user is spread by its own spreading code before being transmitted, and the AP side can correctly distinguish the feedback information of each user.
  • FIG. 2 is a flowchart of an application example of a user data transmission method according to an embodiment of the present invention.
  • the method includes: Step 201: An AP acquires user information and system information, where the system information includes: The number of users associated with the access point AP; wherein the user information is described in detail above, and details are not described herein again.
  • Step 203 The AP allocates a long training sequence and a spreading sequence to the users in each user group. For the process of allocating the long training sequence and the spreading sequence, refer to the above, and details are not described herein.
  • Step 204 The AP generates a multicast frame of the i-th user group, where the number of li user groups is: the multicast frame includes: a long training sequence and a spreading sequence allocated for all users in the i-th user group;
  • the eNB may further include an identifier indicating the user information of the ith user group.
  • the user has two feedback modes: one is that all users feedback information; the other is only user feedback information with data, which is described in detail above, and details are not described herein again.
  • the feedback information sent by all users is received; or only the feedback information of the user who has the data transmission is received.
  • Step 207 The AP schedules the transmission of the user data in the i-th user group according to the scheduling request.
  • Step 210 End the process.
  • the embodiment of the present invention further provides a user data transmission apparatus, and a schematic structural diagram thereof is shown in FIG. 3.
  • the apparatus includes: a sending unit 31, a first receiving unit 33, and a scheduling unit 33.
  • the sending unit 31 is configured to send, to a preset user group, a multicast frame that acquires a user scheduling request, where the multicast frame includes: a long training sequence allocated for a user in the user group. And the spreading sequence; optionally, the multicast frame sent by the sending unit may further include: an identifier indicating the user information of the user group, that is, the target user area of the multicast frame includes a representation The identifier of the user information of the user group.
  • the identifier of the user information of the user group sent by the sending unit includes: a group number of the user group or AID information of the user in the user group or a base sequence identifier of the long training sequence of the user in the user group.
  • the first receiving unit 32 is configured to receive a user scheduling request that is fed back by a user with data transmission in the user group, where the user scheduling request is a long training sequence that the user uses to allocate the user and And/or the spreading sequence is fed back; the scheduling unit 33 is configured to schedule transmission of the user data according to the user scheduling request.
  • the device may further include: an obtaining unit 41, a dividing unit 42 and an allocating unit 43, and a schematic structural diagram thereof is shown in FIG. 4, which is provided by an embodiment of the present invention. Another structural schematic diagram of a user data transmission device.
  • the obtaining unit 41 is configured to acquire user information and system information, where the system information includes: a number of users associated with the access point AP; the dividing unit 42 is configured to: according to the user information The number of users associated with the AP is grouped, and the user group number is set; the allocating unit 43 is configured to allocate a long training sequence and a spreading sequence for the users in each user group.
  • the user information acquired by the acquiring unit includes: a service type of the user, an association identifier information AID of the user, and/or location information of the user;
  • the dividing unit includes: a first dividing unit, a second dividing unit Or a third dividing unit, where the first dividing unit is configured to group the user associated with the AP according to the service type of the user; the second dividing unit is configured to use, according to the AID of the user And grouping the user associated with the AP, where the third dividing unit is configured to group the users associated with the AP according to the location information of the user.
  • the allocating unit includes: a long training sequence allocating unit and a spreading sequence allocation unit, where the long training sequence allocating unit is configured to allocate the same long training sequence to all users; or is a different user group. Different base sequences are selected as long training sequences; and different shifts of the same base sequence are used as long training sequences for different users in the same user group.
  • the spreading sequence allocation unit is configured to allocate orthogonal spreading sequences for each group of users in the same user group; to allocate orthogonal spreading sequences or non-orthogonal spreading sequences to users in different user groups or The same spreading sequence.
  • the device may further include: a second receiving unit 51, and a schematic structural diagram thereof is shown in FIG. 5. FIG. 5
  • FIG. 5 is another schematic structural diagram of a user data transmission apparatus according to an embodiment of the present invention.
  • the second receiving unit 51 is connected to the sending unit 31, and is configured to receive feedback information of the multicast frame sent by a user without data transmission in the user group.
  • the second receiving unit and the first receiving unit may be integrated, and may be deployed independently. This embodiment is not limited.
  • the device is integrated in the AP, or is deployed independently, and is not limited in this embodiment.
  • FIG. 6 is a network device according to an embodiment of the present invention.
  • the network device includes: a transmitter 61, a receiver 62, and a processor 63, where the transmitter 61 is configured to The user in the user group sends a multicast frame for obtaining a user scheduling request, where the multicast frame includes: a long training sequence and a spreading sequence allocated for all users in the user group; of course, in the multicast frame It may also include: an identifier indicating user information of the user group.
  • the receiver 62 is configured to receive a user scheduling request that is fed back by a user with data transmission in the user group, where the user scheduling request is a long training sequence and spread spectrum allocated by the user for the user. At least one of the sequences is fed back; the processor 63 is configured to schedule transmission of user data according to the user scheduling request received by the sender.
  • the receiver 62 is further configured to acquire user information and system information, where the system information includes: a number of users associated with the access point AP; the processor 63 is further configured to use the user information according to the user information. Grouping the number of users associated with the AP, and setting a user group number; and assigning a long training sequence and a spreading sequence to users in each user group.
  • the user information received by the receiver 62 includes: a service type of the user, an association identifier information AID of the user, or location information of the user; and the user 63 associates the user associated with the AP according to the user information.
  • the processor 63 allocates a long training sequence to users in each user group, including: allocating the same long training sequence to users in all user groups; or assigning different long training sequences to different users. .
  • the processor allocates different long training sequences to different users, including: the processor selects different base sequences as different training sequences for different user groups; the processor uses the same base for different users in the same user group. Different shifts of the sequence serve as long training sequences.
  • the processor 63 allocates a spreading sequence to the user in each user group, including: the processor allocates an orthogonal spreading sequence to each group of users in the same user group; and is a user in different user groups.
  • An orthogonal spreading sequence or a non-orthogonal spreading sequence, or the same spreading sequence, is allocated.
  • the multicast frame sent by the sender 61 includes: an identifier that indicates user information of the user group, including: indicating, in the target user area in the multicast frame, the user group The identity of the user information.
  • the identifier of the user information of the user group includes: a group number of the user group, AID information of the user in the user group, or a base sequence identifier of the long training sequence of the user in the user group.
  • the receiver 62 is further configured to receive, by the user in the user group, the feedback information of the multicast frame sent by the user without data transmission.
  • the network device may be an access point AP, and of course, other similar devices may be used.
  • the technical solution for obtaining a user scheduling request in the embodiment of the present invention may also be applied to a wireless local area network system represented by Wi-Fi, including IEEE 802. l la/b/g, 802. l ln, 802. l lac And the next-generation Wi-Fi system to improve the performance of the wireless network, the application scenario can be a business office, a stadium or a home wireless LAN.
  • the present invention can be utilized Software plus the necessary general hardware platform to achieve, of course, can also be through hardware, but in many cases the former is a better implementation.
  • the technical solution of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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  • Mobile Radio Communication Systems (AREA)

Abstract

一种用户数据传输方法、装置及网络设备,所述方法包括:向一个用户组中的用户发送获取用户调度请求的组播帧,所述组播帧包括:为所述用户组中的所有用户分配的长训练序列和扩频序列;接收所述用户组中的有数据传输的用户反馈的用户调度请求,其中,所述用户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序列中的至少一个进行反馈的;根据所述用户调度请求调度用户数据的传输。本发明实施例中,能够一次轮询多个用户,为了无效轮询的概率,并同为取多个用户的用户调度请求,根据该用户调度请求调整用户数据的传输,为有数据发送用户的时延,提高系统的服务质量。

Description

一种用户数据传输方法、 装置及网络设备
技术领域 本发明涉及无线网络技术领域, 特别涉及一种用户数据传输方法、 装置及网络 设备。 背景技术 随着智能终端的广泛应用,人们对网络流量的需求日益增长, 为了满足人们随时 随地能够上网的需求, 必须提高网络系统的性能, 基于此, 无线局域网中的无线保真 (Wi-Fi )系统也由 IEEE 802. l la/b演进到 802. l lg、802. 1 In,再从 802. l lg、802. l ln 到 802. 11ac。 在 IEEE 802. 11η 中, 有分布式协调功能 ( DCF , distributed coordination function)^ 点协调功能(PCF, point coordination function)^ 混合协调功能(HCF, hybrid coordination function) ±曾强型分布式信道接入技术(EDCA, enhanced distributed channel access)。 其中, 分布式协调功能中, 各个用户通过竞争的方 式接入信道, 只有竞争到信道的用户才能传输数据; 点协调功能中, 用户在接收到接 入点 (AP, access point ) 的轮询后, 开始传输数据, 传送的时长为一帧; 混合协调 功能中, 用户在接收到 AP的轮询后, 开始传输数据, 传输的时长为一帧或多帧。 发明人对现有技术的研究和实践过程发现, 现有的实现方式中, AP 每次只能询 问一个用户是否有调度请求, 即一次只能询问一个用户是否有数据发送,增大了用户 传输数据的时延, 降低了系统的服务质量。 发明内容 本发明实施例中提供了一种用户数据传输方法、装置及网络设备, 以解决现有技 术中, 一次只能询问一个用户是否有调度请求, 导致无效轮询概率增加, 用户数据传 输延迟的技术问题。 为了解决上述技术问题, 本发明实施例公开了如下技术方案: 第一方面提供了一种用户数据传输方法, 所述方法包括: 向一个用户组中的用户发送获取用户调度请求的组播帧,所述组播帧包括: 为所 述用户组中的所有用户分配的长训练序列和扩频序列; 接收所述用户组中的有数据传输的用户反馈的用户调度请求,其中,所述用户调 度请求是所述用户使用为所述用户分配的长训练序列和扩频序列中的至少一个进行 反馈的; 根据所述用户调度请求调度用户数据的传输。 在第一方面的第一种可能的实现方式中, 所述方法还包括: 获取用户信息和系统信息, 所述系统信息包括: 与接入点 AP关联的用户数目; 根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设定用户组号; 为每个用户组中的用户分配长训练序列和扩频序列。 结合第一方面或第一方面第一种可能的实现方式, 在第二种可能的实现方式中, 所述用户信息至少包括下述一种: 用户的业务类型、用户的关联标识信息 AID和用户 的位置信息。 结合第一方面或第一方面第一种或第二种可能的实现方式,在第三种可能的实现 方式中所述为每个用户组中的用户分配长训练序列, 包括: 为所有用户组中的用户分配同一个长训练序列; 或者, 为不同的用户组选用不同的基序列作为长训练序列,并为同一用户组中的不同用 户使用同一基序列的不同移位作为长训练序列。 结合第一方面或第一方面第一种或第二种或第三种可能的实现方式,在第四种可 能的实现方式中, 为每个用户组中的用户分配扩频序列, 包括: 为同一用户组中的用户分配正交的扩频序列;为不同用户组中的每组用户分配正 交的扩频序列或者非正交的扩频序列, 或者同一扩频序列。 结合第一方面或第一方面第一种或第二种或第三种或第四种可能的实现方式,在 第五种可能的实现方式中, 所述组播帧还包括: 表示所述用户组的用户信息的标识。 结合第一方面或第一方面第一种或第二种或第三种或第四种或第五种可能的实 现方式,在第六种可能的实现方式中,所述表示所述用户组的用户信息的标识,包括: 用户组的组号、用户组中用户的 AID信息或者用户组中用户的长训练序列的基序列标 识。 结合第一方面或第一方面第一种或第二种或第三种或第四种或第五种或第六种 可能的实现方式, 在第七种可能的实现方式中, 还包括: 接收所述用户组中的没有数据传输的用户发送的响应所述组播帧的反馈信息。 第二方面提供了一种用户数据传输装置, 包括: 发送单元, 用于向预设的一个用户组中的用户发送获取用户调度请求的组播帧, 所述组播帧包括: 为所述用户组中的用户分配的长训练序列和扩频序列; 第一接收单元, 用于接收所述用户组中的有数据传输的用户反馈的用户调度请 求; 其中,所述用户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序 列中的至少一个进行反馈的; 调度单元, 用于根据所述用户调度请求调度用户数据的传输。 在第二方面的第一种可能的实现方式中, 还包括: 获取单元, 用于获取用户信息和系统信息, 所述系统信息中包括: 与接入点 AP 关联的用户数目; 划分单元, 用于根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设 定用户组号; 分配单元, 用于为每个用户组中的用户分配长训练序列和扩频序列。 结合第二方面或第二方面第一种可能的实现方式, 在第二种可能的实现方式中, 所述获取单元获取的所述用户信息至少包括下述一种: 用户的业务类型、用户的关联 标识信息 AID和用户的位置信息。 结合第二方面或第二方面第一种或第二种可能的实现方式,在第三种可能的实现 方式中, 所述分配单元包括: 长训练序列分配单元,用于为所有用户分配同一个长训练序列; 或者为不同的用 户组选用不同的基序列作为长训练序列,并为同一用户组中的不同用户使用同一基序 列的不同移位作为长训练序列; 扩频序列分配单元,用于为同一用户组中的用户分配正交的扩频序列; 为不同用 户组中的每组用户分配正交的扩频序列或者非正交的扩频序列或者同一扩频序列。 结合第二方面或第二方面第一种或第二种或第三种可能的实现方式,在第四种可 能的实现方式中,所述发送单元发送的所述组播帧还包括: 表示所述用户组的用户信 息的标识。 结合第二方面或第二方面第一种或第二种或第三种或第四种可能的实现方式,在 第五种可能的实现方式中, 所述发送单元发送的表示所述用户组的用户信息的标识, 包括: 用户组的组号、用户组中用户的 AID信息或者用户组中用户的长训练序列的基 序列标识。 结合第二方面或第二方面第一种或第二种或第三种或第四种或第五种可能的实 现方式, 在第六种可能的实现方式中, 还包括: 第二接收单元,用于接收所述用户组中的没有数据传输的用户发送的响应所述组 播帧的反馈信息。 第三方面提供了一种网络设备, 包括: 发送器,用于向一个用户组中的用户发送获取用户调度请求的组播帧,所述组播 帧包括: 为所述用户组中的所有用户分配的长训练序列和扩频序列; 接收器,用于接收所述用户组中的有数据传输的用户反馈的用户调度请求,其中, 所述用户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序列中的至 少一个进行反馈的; 处理器, 用于根据所述发送器接收到的所述用户调度请求调度用户数据的传输 在第三方面的第一种可能的实现方式中, 所述接收器, 还用于接收用户信息和系统信息, 所述系统信息包括: 与接入点 AP关联的用户数目; 所述处理器, 还用于根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设定用户组号; 并为每个用户组中的用户分配长训练序列和扩频序列 结合第三方面或第三方面第一种可能的实现方式, 在第二种可能的实现方式中, 所述接收器接收到的用户信息包括: 用户的业务类型、 用户的关联标识信息 AID 或用户的位置信息。 结合第三方面或第三方面第一种或第二种可能的实现方式,在第三种可能的实现 方式中, 所述处理器为每个用户组中的用户分配长训练序列,包括: 为所有用户组中的用 户分配同一个长训练序列;或者,为不同的用户组选用不同的基序列作为长训练序列; 并为同一用户组中的不同用户使用同一基序列的不同移位作为长训练序列。 结合第三方面或第三方面第一种或第二种或第三种可能的实现方式,在第四种可 能的实现方式中, 所述处理器为每个用户组中的用户分配扩频序列, 包括: 处理器为 同一用户组中的用户分配正交的扩频序列;为不同用户组中的每组用户分配正交的扩 频序列或者非正交的扩频序列, 或者同一扩频序列。 结合第三方面或第三方面第一种或第二种或第三种或第四种可能的实现方式,在 第五种可能的实现方式中,所述发送器发送的所述组播帧还包括表示所述用户组的用 户信息的标识。 结合第三方面或第三方面第一种或第二种或第三种或第四种或第五种可能的实 现方式, 在第六种可能的实现方式中, 所述接收器, 还用于接收所述用户组中的没有 数据传输的用户发送的响应所述组播帧的反馈信息。 由上述技术方案可知, 本发明实施例中, AP 能够一次轮询多个用户, 降低了无 效轮询的概率, 并获取多个用户的用户调度请求,根据该用户调度请求调度用户数据 的传输, 降低有数据发送用户的时延, 从而提高系统的服务质量。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现 有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅 是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提 下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种用户数据传输方法的流程图;
图 1A为本发明实施例提供的一种所有用户都反馈信息的示意图;
图 1B为本发明实施例提供的一种只有需求用户反馈信息的示意图;
图 2为本发明实施例提供的一种用户数据传输方法的应用实例的示意图; 图 3为本发明实施例提供的一种用户数据传输装置的结构示意图;
图 4为本发明实施例提供的一种用户数据传输装置的另一结构示意图; 图 5为本发明实施例提供的一种用户数据传输装置的另一结构示意图; 图 6为本发明实施例提供的一种网络设备的结构示意图。 具体实施方式 下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完 整的描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的 所有其他实施例, 都属于本发明保护的范围。 本发明实施例提出一种获取用户调度请求的方法及装置,应用于无线局域网。本 发明实施例中, AP 按照预设规则对与其关联的用户进行分组, 然后分别向每组中的 用户发送"获取用户调度请求"的组播帧, 并在接收到每组中多个用户发送的反馈信 息后, 根据所述反馈信息调度后续用户数据的传送。本发明实施例中, 能够一次轮询 多个用户, 降低了无效轮询的概率, 并同时获取多个用户的用户调度请求, 根据该用 户调度请求调整用户数据的传输,降低有数据发送用户的时延,提高系统的服务质量。 请参阅图 1,图 1为本发明实施例提供的一种获取用户调度请求的方法的流程图; 所述方法包括: 步骤 101 : 向用户组中的用户发送获取用户调度请求的组播帧,所述组播帧包括: 为所述用户组中的用户分配的长训练序列和扩频序列; 在该步骤之前, 所述方法还可以包括: 接入点 AP先获取用户信息和系统信息, 所述系统信息包括: 与该 AP关联的用户 (或者站点 STA数目); 然后, 根据所述用户 信息对所述与 AP关联的用户数目进行分组, 并设定用户组号; 再后, 为每个用户组 中的用户分配长训练序列和扩频序列。 其中, 所述系统信息除了包括与 AP关联的 STA数目, 还可以包括 BSS ID等, 当 然, 还可以适应性包括其他参数, 本实施例不作限制。 可选的, 在该实施例中, 如果所述用户信息包括: 用户的业务类型, 所述根据用 户信息对所述与 AP关联的用户数目进行分组, 包括: 根据所述用户的业务类型对所 述与 AP关联的用户进行分组。 其中, 根据用户的业务类型进行分组的这种方式, 可以按照业务的优先级, 分为 高优先级业务组、 中优先级业务组、 低优先级业务组; 也可以进行更细层级的区分, 分为优先级 1至优先级 5等五组。高优先级业务组可以比低优先级业务组拥有更多的 数据发送机会, 比如 AP对高优先级业务组的广播次数高于对对低优先级业务的广播 次数。关于组号, 一种情况为, 可以把业务类型的优先级别作为组号, 比如 01, 02, 03 等, 但并不限于此。 如果所述用户信息包括: 用户的关联标识信息 AID, 则所述根据所述用户信息对 所述与 AP关联的用户进行分组,包括: 根据所述用户的 AID对所述与 AP关联的用户 进行分组; 其中, 根据用户 AID进行分组的这种方式, 可以把 AID相邻的用户分成一组, 比 如 AID从 1至 20的为第一组, 以此类推等。 关于组号, 可以把组内 AID的起始地址 作为组号; 也可以按照简单的方式设置组号, 比如 1, 2, 3等, 但并不限于此。 如果所述用户信息包括: 用户的位置信息; 则所述根据所述用户信息对所述与 AP关联的用户进行分组, 包括: 根据所述用户的位置信息对所述与 AP关联的用户进 行分组。 其中, 根据用户的位置进行分组的这种方式, 可以把位置相邻的用户分为一组, 或者位于 AP的同一方位 (比如上方、 下方、 东北方、 西南方等) 的用户分为一组, 以便 AP针对某一个用户组用户发送广播信息时, 可以使用波束成型的方式。 关于组 号, 我们可以按照比较简单的方式设置组号, 比如 1, 2, 3等, 但并不限于此。 当然, 在该实施例中, 也可以根据其他方式进行分组时, 并设置组号。 对用户进 行分组的方法有多种,可以根据需求选择不同的分组方法, 比如要让 AP的功耗降低, 可以选择根据用户的位置进行分组的方式, 以便 AP可以使用波束赋形的方式进行组 播。 可选的, 为用户分配长训练序列其分配的方式以下述两种方式为例,但并不限于 此: 方式一: 可以按照 IEEE 802. l ln或 IEEE 802. l lac标准, 为所有用户组中的用 户分配同一个长训练序列。 方式二: 也可以为不同的用户分配不同的长训练序列。在本发明实施例中, 为了 组播帧的设置, 可以按照下述规则为不同的用户分配长训练序列。 规则 1 : 不同的用 户组选用不同的基序列作为长训练序列; 规则 2: 同一用户组中的不同用户使用同一 基序列的不同移位作为长训练序列。需要说明的是, 长训练序列的选取和使用对于本 领域技术人员来说, 已是熟知技术, 在此不再赘述。 可选的, 为每个用户组中的用户分配扩频序列, 包括: 为同一用户组中的用户分 配正交的扩频序列;为不同用户组中的每组用户分配正交的扩频序列或者非正交的扩 频序列, 或者同一扩频序列。 其中, 为每个用户组中的用户分配扩频序列, 也可以称 为, 为每个用户组中的用户分配扩频码。 该实施例中, 分配扩频码或扩频序列的目的是: 用户使用分配的扩频码向 AP反 馈是否有数据发送的消息; 目的是同一组的多个用户在同时反馈广播帧时, AP 能够 正确解调出各个用户的反馈信息。执行方式二的过程中, 需要遵守两条规则,规则 1 : 同组内不同用户的扩频码必须正交; 规则 2: 不同组内的用户之间的扩频码可以不正 交, 也可以正交, 还可以相同。 在该实施例中,在发送的组播帧的目标用户区域中,包含能够标识该组用户信息 的比特,如果该组为第 i组,则在组播帧的目标用户区域中,增加第 i组用户的组号, 或者, 增加第 i组用户的 AID信息, 其中, 这种增加方式有两种表达方法, 一种是使用 一组用户的 AID起始值及用户个数, 另一种是使用一组用户的 AID起始值和结束值。 当然, 在实际应用中, 还需要根据 AID进行用户分组, 才能使用 AID信息标识各组用 户。 或者, 增加第 i组用户的长训练序列的基序列 ID。 如果在为不同的用户分配了不同的 长训练序列, 其具体的分配规则详见上述, 那么就可以使用长训练序列的基序列 ID 来标识各组用户。 本实施例中组播帧的其他区域的内容, 具体可以参考 IEEE 802. l lac中 PCF轮询 帧的设计方法, 在此不再赘述。 基于上述过程, 步骤 101 中, 对于根据用户的位置进行分组的情况, AP可以使 用 beamforming的方式发送组播帧 (或者组播信息)。 需要说明的是, 该组播帧的调 制编码方式以及发送功率,需要保证组内的所有用户都能够接收到并正确解调出组播 帧的内容。 步骤 102: 接收所述用户组中的有数据传输的用户反馈的用户调度请求, 其中, 所述用户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序列中的至 少之一进行反馈的。 也就是说, 如果所有的用户使用相同的长训练序列, 则用扩频序列进行反馈; 如 果不同的用户使用不同的长训练序列, 则可以使用长训练序列进行反馈。 其中, 用户组中的每个用户在接收到 AP发送的组播帧后, 使用系统为该用户分 配的扩频码向 AP反馈是否有数据发送的消息, 以便于同一组的多个用户在同时反馈 响应组播帧的消息时, AP 能够正确解调出各个用户的反馈信息, 如果有数据需要发 送, 则该反馈信息中包括用户调度请求; 如果没有数据需要发送的, 则所述反馈信息 中不包括用户调度信息。其中, 扩频码的分配可以在组播帧中进行, 也可以在之前进 行。 也就是说, 各个用户在发送反馈信息时, 均用自己的扩频码进行扩频。 步骤 103: 根据所述用户调度请求调度用户数据的传输。
AP在接收到用户调度请求中, 根据该用户调度请求调度用户数据的传输。 其中, AP收到用户的反馈后,获得对应用户的用户调度请求, AP将处理用户组中 的数据传输:如果只有一个用户有数据需要发送,则可以按照 802. l ln或者 802. l lac 的方式进行传输; 如果有多个用户有数据需要发送, 可以通过 AP的调度, 比如, 通 过时分的方式, 让其依次传送; 或者通过频分的方式, 每个用户分配一定的带宽, 让 其同时传送; 也可以通过时分加频分的方式, 为每个用户分配一些资源块, 让其进行 传送; 还可以通过码分的方式让其同时传送, 当然, 还可以通过其他的方式, 本实施 例不作限制。 可选的, 在另一实施例中, 该实施例在上述实施例的基础上, 所述方法还可以包 括: 接收所述用户组中的没有数据传输的用户发送的响应所述组播帧的反馈信息。 也就是说, 在该实施例中, 用户组的有数据需要传输的用户, 可以向 AP反馈用 户调度请求, 而没有数据传输的用户, 也可以向 AP发送没有数据传输的反馈信息, 以便于 AP判断该用户组中, 哪些用户需要传输数据, 哪些用户不需要传输数据。 即, 本发明实施例中, 有两种反馈方式: 第一种是全部用户都反馈信息, 如图 1A所示, 为本发明实施例提供的一种所有用户都反馈信息的示意图; 第二种是有数 据需要传输的用户反馈信息, 如图 1B所示, 为本发明实施例提供的一种只有需求用 户反馈信息的示意图。 如图 1A所示,假如站点 STA1、STA2和 STA3为一组,在收到 AP的 CF轮询(CF-Poll ) 后, 如果 STA1和 STA3有业务需要发送, 而 STA2没有业务发送, 根据反馈方式一, STAU STA2和 STA3均需反馈信息,其中, STA1和 STA3反馈调度请求信息(即 Request Infor), 而 STA2反馈 "无业务发送" 的信息 (即 No Traffic )0 如图 IB所示, 假如 STA1、 STA2和 STA3为一组, 在收到 AP的 CF- Poll后, STA1 和 STA3有业务需要发送, 而 STA2没有业务发送, 根据反馈方式二, STA1和 STA3反 馈调度请求信息 (即 Request Infor), 而 STA2不反馈任何信息。 其中, 各个用户的反馈信息在发送前, 用自己的扩频码进行扩频, AP 侧可以正 确区分出每个用户的反馈信息。 本发明实施例中, 能够一次轮询多个用户, 降低了无效轮询的概率, 并获取多个 用户的用户调度请求,根据该用户调度请求调度用户数据的传输, 降低有数据发送用 户的时延, 提高系统的服务质量。 本发明实施例改进了 IEEE 802. l ln和 IEEE 802. l lac中的轮询机制, 降低了 AP 无效轮询的概率, 提高了系统的吞吐量; 同时可以降低有数据发送用户的时延, 提高 系统的服务质量。 还请参阅图 2, 图 2为本发明实施例提供的一种用户数据传输方法的应用实例的 流程图, 所述方法包括: 步骤 201 : AP获取用户信息和系统信息, 所述系统信息包括: 与接入点 AP关联 的用户数目; 其中, 所述用户信息详见上述, 在此不再赘述。 步骤 202: AP根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设定 用户组号; 其中, 用户信息包括的内容不同, 其分组的方式也不同, 具体详见上述, 在此不 再赘述。 步骤 203: AP为每个用户组中的用户分配长训练序列和扩频序列; 其中, 分配长训练序列和扩频序列的过程, 详见上述, 在此不再赘述。 步骤 204: AP生成第 i用户组的组播帧, 其中, l i 用户组数; 所述组播帧中 包括: 为所述第 i用户组中的所有用户分配的长训练序列和扩频序列; 还可以包括表 示所述第 i用户组的用户信息的标识; 步骤 205: AP向第 i用户组中的用户发送所述组播帧; 步骤 206: AP接收第 i用户组中有数据需要发送的用户反馈的用户调度请求; 当然, 在该实施例中, AP还可以接收到没有数据发送的用户的反馈信息。 本发明实施例中, 用户有两种反馈方式: 一种是全部用户都反馈信息; 另一种只 是有数据的用户反馈信息, 具体详见上述, 在此不再赘述。 而对于 AP来说, 接收到 所有用户发送的反馈信息; 或者只接收到有数据发送的用户的反馈信息。 步骤 207: AP根据所述调度请求调度第 i用户组中的用户数据的传输; 步骤 208: 判断 i是否达到最大用户组数, 如果否, 执行步骤 209; 如果是, 执 行步骤 210; 步骤 209:执行 i=i+l,然后,返回步骤 204,即 AP生成第 i用户组的组播帧, 所 述组播帧中包括: 表示所述第 i用户组的用户信息的标识; 以及为所述第 i用户组中 的所有用户分配的长训练序列和扩频序列。 步骤 210: 结束本次流程。 基于上述方法的实现过程,本发明实施例还提供一种用户数据传输装置,其结构 示意图如图 3所示, 所述装置包括: 发送单元 31, 第一接收单元 33和调度单元 33。 其中, 所述发送单元 31, 用于向预设的一个用户组中的用户发送获取用户调度 请求的组播帧,所述组播帧包括: 为所述用户组中的用户分配的长训练序列和扩频序 列; 可选的,所述发送单元发送的所述组播帧还可以包括: 表示所述用户组的用户信 息的标识,即:所述组播帧的目标用户区域中包括表示所述用户组的用户信息的标识。 所述发送单元发送的表示所述用户组的用户信息的标识,包括: 用户组的组号或者用 户组中用户的 AID信息或者用户组中用户的长训练序列的基序列标识。 所述第一接收单元 32, 用于接收所述用户组中的有数据传输的用户反馈的用户 调度请求; 其中,所述用户调度请求是所述用户使用为所述用户分配的长训练序列和 /或扩频序列进行反馈的; 所述调度单元 33, 用于根据所述用户调度请求调度用户数据的传输。 可选的, 在图 3实施例的基础上, 所述装置还可以包括: 获取单元 41, 划分单 元 42和分配单元 43, 其结构示意图如图 4所示, 图 4为本发明实施例提供的一种用 户数据传输装置的另一结构示意图。 其中, 所述获取单元 41, 用于获取用户信息和系统信息, 所述系统信息中包括: 与接 入点 AP关联的用户数目; 所述划分单元 42,用于根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设定用户组号; 所述分配单元 43, 用于为每个用户组中的用户分配长训练序列和扩频序列。 可选的, 所述获取单元获取的所述用户信息包括: 用户的业务类型、用户的关联 标识信息 AID和 /或用户的位置信息; 所述划分单元包括: 第一划分单元, 第二划分单元或第三划分单元, 其中, 所述 第一划分单元, 用于根据所述用户的业务类型对所述与 AP关联的用户进行分组; 所 述第二划分单元, 用于根据所述用户的 AID对所述与 AP关联的用户进行分组; 所述 第三划分单元, 用于根据所述用户的位置信息对所述与 AP关联的用户进行分组。 可选的, 所述分配单元包括: 长训练序列分配单元和扩频序列分配单元, 其中, 所述长训练序列分配单元,用于为所有用户分配同一个长训练序列; 或者为不同的用 户组选用不同的基序列作为长训练序列;并为同一用户组中的不同用户使用同一基序 列的不同移位作为长训练序列。 所述扩频序列分配单元, 用于为同一用户组中的每组用户分配正交的扩频序列; 为不同用户组中的用户分配正交的扩频序列或者非正交的扩频序列或者同一扩频序 列。 可选的, 所述装置还可以包括: 第二接收单元 51, 其结构示意图如图 5所示, 图 5为本发明实施例提供的一种用户数据传输装置的另一结构示意图。 其中, 所述第二接收单元 51, 与发送单元 31连接, 用于接收所述用户组中的没有数据 传输的用户发送的响应所述组播帧的反馈信息。 其中, 第二接收单元与第一接收单元可以集成在一起, 也可以独立部署, 本实施 例不作限制。 可选的, 所述装置集成在 AP中, 或者独立部署, 本实施例不作限制。 还请参阅图 6, 图 6为本发明实施例提供的一种网络设备, 所述网络设备包括: 发送器 61、 接收器 62和处理器 63, 其中, 所述发送器 61, 用于向一个用户组中的用户发送获取用户调度请求的组播帧, 所述组播帧中包括:为所述用户组中的所有用户分配的长训练序列和扩频序列;当然, 所述组播帧中还可以包括: 表示所述用户组的用户信息的标识。 所述接收器 62, 用于接收所述用户组中的有数据传输的用户反馈的用户调度请 求,其中,所述用户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序 列中的至少一个进行反馈的; 所述处理器 63, 用于根据所述发送器接收到的所述用户调度请求调度用户数据 的传输。 可选的, 所述接收器 62, 还用于获取用户信息和系统信息, 所述系统信息包括: 与接入点 AP关联的用户数目; 所述处理器 63,还用于根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设定用户组号; 并为每个用户组中的用户分配长训练序列和扩频序列。 可选的, 当所述接收器 62接收到的用户信息包括: 用户的业务类型、 用户的关 联标识信息 AID或用户的位置信息; 所述 63根据所述用户信息对所述与 AP关联的 用户数目进行分组, 包括: 根据所述用户的业务类型对所述与 AP关联的用户数目进 行分组; 或者根据所述用户的 AID对所述与 AP关联的用户数目进行分组; 或者根据 所述用户的位置信息对所述与 AP关联的用户数目进行分组。 可选的, 所述处理器 63为每个用户组中的用户分配长训练序列, 包括: 为所有 用户组中的用户分配同一个长训练序列;或者,为不同的用户分配不同的长训练序列。 其中, 所述处理器为不同的用户分配不同的长训练序列, 包括: 处理器为不同的用户 组选用不同的基序列作为长训练序列;处理器为同一用户组中的不同用户使用同一基 序列的不同移位作为长训练序列。 可选的, 所述处理器 63为每个用户组中的用户分配扩频序列, 包括: 处理器为 同一用户组中的每组用户分配正交的扩频序列;为不同用户组中的用户分配正交的扩 频序列或者非正交的扩频序列, 或者同一扩频序列。 可选的, 所述发送器 61发送的所述组播帧中包括: 表示所述用户组的用户信息 的标识,包括: 在所述组播帧中的目标用户区域中包括表示所述用户组的用户信息的 标识。 其中, 所述表示所述用户组的用户信息的标识, 包括: 用户组的组号、 用户组中 用户的 AID信息或者用户组中用户的长训练序列的基序列标识。 可选的, 所述接收器 62, 还用于接收所述用户组中的没有数据传输的用户发送 的响应所述组播帧的反馈信息。 可选的, 所述网络设备可以为接入点 AP,当然, 也可以其他类似设备, 本实例不 作限制。 本发明实施例中提出的一次获取用户调度请求的技术方案还可以应用以 Wi-Fi 为代表的无线局域网系统中, 包括 IEEE 802. l la/b/g, 802. l ln, 802. l lac以及下一 代 Wi-Fi系统, 以提高无线网络的性能, 其应用场景可以是业务办公、 体育场馆或者 家庭无线局域网等等。 需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实 体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之 间存在任何这种实际的关系或者顺序。 而且, 术语 "包括" 、 "包含"或者其任何其 他变体意在涵盖非排他性的包含, 从而使得包括一系列要素的过程、 方法、物品或者 设备不仅包括那些要素, 而且还包括没有明确列出的其他要素, 或者是还包括为这种 过程、 方法、 物品或者设备所固有的要素。 在没有更多限制的情况下, 由语句 "包括 一个…… " 限定的要素, 并不排除在包括所述要素的过程、 方法、物品或者设备中还 存在另外的相同要素。 通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到本发明可借助 软件加必需的通用硬件平台的方式来实现, 当然也可以通过硬件,但很多情况下前者 是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做 出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品可以存储在存储介 质中, 如 R0M/RAM、 磁碟、 光盘等, 包括若干指令用以使得一台计算机设备 (可以是 个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例或者实施例的某些部 分所述的方法。 以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人 员来说, 在不脱离本发明原理的前提下, 还可以作出若干改进和润饰, 这些改进和润 饰也应视为本发明的保护范围。

Claims

权 利 要 求
1、 一种用户数据传输方法, 其特征在于, 包括:
向一个用户组中的用户发送获取用户调度请求的组播帧, 所述组播帧包括: 为所述用户组中的所有用户分配的长训练序列和扩频序列;
接收所述用户组中的有数据传输的用户反馈的用户调度请求, 其中, 所述用 户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序列中的至少 一个进行反馈的;
根据所述用户调度请求调度用户数据的传输。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
获取用户信息和系统信息, 所述系统信息包括: 与接入点 AP关联的用户数 巨;
根据所述用户信息对所述与 AP关联的用户数目进行分组,并设定用户组号; 为每个用户组中的用户分配长训练序列和扩频序列。
3、 根据权利要求 2所述的方法, 其特征在于, 所述用户信息至少包括下述 一种: 用户的业务类型、 用户的关联标识信息 AID和用户的位置信息。
4、 根据权利要求 2或 3所述的方法, 其特征在于, 所述为每个用户组中的 用户分配长训练序列, 包括:
为所有用户组中的用户分配同一个长训练序列; 或者,
为不同的用户组选用不同的基序列作为长训练序列,并为同一用户组中的不 同用户使用同一基序列的不同移位作为长训练序列。
5、 根据权利要求 2或 3所述的方法, 其特征在于, 为每个用户组中的用户 分配扩频序列, 包括:
为同一用户组中的用户分配正交的扩频序列;为不同用户组中的每组用户分 配正交的扩频序列或者非正交的扩频序列, 或者同一扩频序列。
6、 根据权利要求 1至 3任一项所述的方法, 其特征在于, 所述组播帧还包 括: 表示所述用户组的用户信息的标识。
7、 根据权利要求 6所述的方法, 其特征在于, 所述表示所述用户组的用户 信息的标识, 包括: 用户组的组号、 用户组中用户的 AID信息或者用户组中用 户的长训练序列的基序列标识。
8、 根据权利要求 1至 3任一项所述的方法, 其特征在于, 还包括: 接收所述用户组中的没有数据传输的用户发送的响应所述组播帧的反馈信 息。
9、 一种用户数据传输装置, 其特征在于, 包括:
发送单元,用于向预设的一个用户组中的用户发送获取用户调度请求的组播 帧, 所述组播帧包括: 为所述用户组中的用户分配的长训练序列和扩频序列; 第一接收单元,用于接收所述用户组中的有数据传输的用户反馈的用户调度 请求; 其中, 所述用户调度请求是所述用户使用为所述用户分配的长训练序列和 扩频序列中的至少一个进行反馈的;
调度单元, 用于根据所述用户调度请求调度用户数据的传输。
10、 根据权利要求 9所述的装置, 其特征在于, 还包括:
获取单元, 用于获取用户信息和系统信息, 所述系统信息中包括: 与接入点
AP关联的用户数目;
划分单元, 用于根据所述用户信息对所述与 AP关联的用户数目进行分组, 并设定用户组号;
分配单元, 用于为每个用户组中的用户分配长训练序列和扩频序列。
11、 根据权利要求 10所述的装置, 其特征在于, 所述获取单元获取的所述 用户信息至少包括下述一种: 用户的业务类型、 用户的关联标识信息 AID和用 户的位置信息。
12、 根据权利要求 10或 11所述的装置, 其特征在于, 所述分配单元包括: 长训练序列分配单元, 用于为所有用户分配同一个长训练序列; 或者为不同 的用户组选用不同的基序列作为长训练序列,并为同一用户组中的不同用户使用 同一基序列的不同移位作为长训练序列;
扩频序列分配单元, 用于为同一用户组中的用户分配正交的扩频序列; 为不 同用户组中的每组用户分配正交的扩频序列或者非正交的扩频序列或者同一扩 频序列。
13、 根据权利要求 12所述的装置, 其特征在于, 所述发送单元发送的所述 组播帧还包括: 表示所述用户组的用户信息的标识。
14、 根据权利要求 13所述的装置, 其特征在于, 所述发送单元发送的表示 所述用户组的用户信息的标识, 包括: 用户组的组号、 用户组中用户的 AID信 息或者用户组中用户的长训练序列的基序列标识。
15、 根据权利要求 9至 11任一项所述的装置, 其特征在于, 还包括: 第二接收单元,用于接收所述用户组中的没有数据传输的用户发送的响应所 述组播帧的反馈信息。
16、 一种网络设备, 其特征在于, 包括:
发送器, 用于向一个用户组中的用户发送获取用户调度请求的组播帧, 所述 组播帧包括: 为所述用户组中的所有用户分配的长训练序列和扩频序列; 接收器, 用于接收所述用户组中的有数据传输的用户反馈的用户调度请求, 其中,所述用户调度请求是所述用户使用为所述用户分配的长训练序列和扩频序 列中的至少一个进行反馈的; 处理器,用于根据所述发送器接收到的所述用户调度请求调度用户数据的传 输
17、 根据权利要求 16所述的网络设备, 其特征在于,
所述接收器, 还用于接收用户信息和系统信息, 所述系统信息包括: 与接入 点 AP关联的用户数目;
所述处理器, 还用于根据所述用户信息对所述与 AP关联的用户数目进行分 组, 并设定用户组号; 并为每个用户组中的用户分配长训练序列和扩频序列
18、 根据权利要求 17所述的网络设备, 其特征在于,
所述接收器接收到的用户信息包括: 用户的业务类型、用户的关联标识信息 AID或用户的位置信息。
19、 根据权利要求 17或 18所述的网络设备, 其特征在于,
所述处理器为每个用户组中的用户分配长训练序列, 包括: 为所有用户组中 的用户分配同一个长训练序列; 或者, 为不同的用户组选用不同的基序列作为长 训练序列;并为同一用户组中的不同用户使用同一基序列的不同移位作为长训练 序列。
20、根据权利要求 17或 18所述的网络设备, 其特征在于, 所述处理器为每 个用户组中的用户分配扩频序列, 包括: 处理器为同一用户组中的用户分配正交 的扩频序列;为不同用户组中的每组用户分配正交的扩频序列或者非正交的扩频 序列, 或者同一扩频序列。
21、根据权利要求 16至 18任一项所述的网络设备, 其特征在于, 所述发送 器发送的所述组播帧还包括: 表示所述用户组的用户信息的标识。
22、根据权利要求 16至 18任一项所述的网络设备, 其特征在于, 所述接收 器,还用于接收所述用户组中的没有数据传输的用户发送的响应所述组播帧的反 馈信息。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018166344A1 (zh) * 2017-03-15 2018-09-20 华为技术有限公司 上行数据调度请求方法及装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160249185A1 (en) * 2015-02-20 2016-08-25 Qualcomm Incorporated Enhanced wireless multicast delivery
CN107872819B (zh) * 2016-09-28 2021-07-20 华为技术有限公司 资源管理指示方法及装置
US10892863B2 (en) * 2018-09-10 2021-01-12 Intel Corporation Joint nulling and joint beamforming for downlink transmissions by multiple access points (AP)
WO2022006852A1 (zh) * 2020-07-10 2022-01-13 Oppo广东移动通信有限公司 无线通信方法、终端设备和网络设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101242384A (zh) * 2007-02-06 2008-08-13 北京三星通信技术研究有限公司 传输调度请求信息的设备和方法
CN101494908A (zh) * 2008-01-25 2009-07-29 大唐移动通信设备有限公司 用户设备数据的调度方法及分组调度器
US20100162318A1 (en) * 2008-12-18 2010-06-24 Verizon Corporate Services Group Inc. System and method for adaptive backoff
CN102014509A (zh) * 2009-09-29 2011-04-13 大唐移动通信设备有限公司 一种调度终端反馈信道信息的方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7356010B2 (en) 2002-12-02 2008-04-08 Ntt Docomo Inc. Point coordinator control passing scheme using a scheduling information parameter set for an IEEE 802.11 wireless local area network
US7426199B2 (en) * 2005-06-29 2008-09-16 Intel Corporation Wireless communication device and method for reducing carrier frequency offsets over a simultaneous multi-user uplink in a multicarrier communication network
WO2007052143A2 (en) 2005-11-04 2007-05-10 Nokia Corporation Method, wireless local area network (wlan), node and apparatus for multicast and/or broadcast ackowledgements
CN101286980B (zh) 2008-05-14 2012-03-28 华中科技大学 一种增加无线局域网容量的分布式媒体接入控制方法
US8873525B2 (en) * 2009-12-02 2014-10-28 Marvell World Trade Ltd Method and apparatus for sounding multiple stations
EP2357773B1 (en) * 2010-02-10 2018-01-10 Avago Technologies General IP (Singapore) Pte. Ltd Preamble and header bit allocation for power savings within multiple user, multiple access, and/or MIMO wireless communications systems
US9565690B2 (en) * 2011-11-30 2017-02-07 Nokia Technologies Oy Medium access control method enhancement
US8964561B2 (en) * 2012-05-04 2015-02-24 Nokia Corporation Method and apparatus for signaling sequence root
US10779212B2 (en) * 2012-09-05 2020-09-15 Interdigital Patent Holdings, Inc. Methods for MAC frame extensibility and frame specific MAC header design for WLAN systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101242384A (zh) * 2007-02-06 2008-08-13 北京三星通信技术研究有限公司 传输调度请求信息的设备和方法
CN101494908A (zh) * 2008-01-25 2009-07-29 大唐移动通信设备有限公司 用户设备数据的调度方法及分组调度器
US20100162318A1 (en) * 2008-12-18 2010-06-24 Verizon Corporate Services Group Inc. System and method for adaptive backoff
CN102014509A (zh) * 2009-09-29 2011-04-13 大唐移动通信设备有限公司 一种调度终端反馈信道信息的方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018166344A1 (zh) * 2017-03-15 2018-09-20 华为技术有限公司 上行数据调度请求方法及装置

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