WO2016172981A1 - 资源指示方法、装置和设备 - Google Patents

资源指示方法、装置和设备 Download PDF

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Publication number
WO2016172981A1
WO2016172981A1 PCT/CN2015/078140 CN2015078140W WO2016172981A1 WO 2016172981 A1 WO2016172981 A1 WO 2016172981A1 CN 2015078140 W CN2015078140 W CN 2015078140W WO 2016172981 A1 WO2016172981 A1 WO 2016172981A1
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WO
WIPO (PCT)
Prior art keywords
indication
sta
resource
group
communication
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PCT/CN2015/078140
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English (en)
French (fr)
Inventor
于健
刘晟
林梅露
杨讯
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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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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/078140 priority Critical patent/WO2016172981A1/zh
Priority to CN201580079154.7A priority patent/CN107534956A/zh
Publication of WO2016172981A1 publication Critical patent/WO2016172981A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a resource indication method, apparatus, and device.
  • an access point can utilize different spatio-temporal streams simultaneously.
  • Multi-user transmissions increase system efficiency, but at the same time provide an indication of the various parameters and location of the resources occupied for each site.
  • Table 1 is a schematic diagram of a resource indication structure of a single site in the prior art
  • Table 2 is a schematic diagram of a resource indication structure of a MU-MIMO site group in the prior art.
  • the Partial Associate ID (PAID) is used to identify the receiving end, and carries part of the information of the associated identifier, and the downlink/uplink type (Downlink/Uplink type; Abbreviation: DL/UL type) is used to indicate whether the resource block belongs to the downlink frame or the uplink frame.
  • Modulation and Coding Scheme (MCS) is used to indicate the modulation and coding strategy, and the number of space-time streams (Number of Space-Time) Stream; abbreviated as: NSTS) is used to indicate the number of spatio-temporal streams used.
  • Resource Unit Allocation (RU) and Time Allocation (Time alloc) indicate frequency and time respectively.
  • low density parity check code Low Density Parity Check; LDPC for short
  • LDPC Low Density Parity Check
  • STBC Space Time Block Coding
  • Cyclic Redundancy Code Cyclic Redundancy Code
  • BCC Binary Convolution Code
  • the group ID (Group ID; GID for short) is used to indicate the identifier of the MU-MIMO site group; in addition, for each site in the site group, it is necessary to separately Indicates parameters such as MCS and NSTS.
  • a method for performing resource indication on a resource-by-resource block basis may be adopted, including a site or a site group field, which is used to indicate whether the resource block is data for transmitting a station or data for transmitting a group group; a size of a resource block,
  • the Station ID (STA ID)/GID is used to indicate the identity of a single site or a site group.
  • the embodiment of the invention provides a resource indication method, device and device, which can reduce signaling overhead and save system resources.
  • an embodiment of the present invention provides a resource indication method, including:
  • the access point AP generates resource indication information, where the resource indication information is used to indicate a scheduled station or a site group, and the communication resource to be used by the scheduled site or the site group, where the resource indication information includes resources.
  • the resource indication mode field is a first indication
  • the first indication is used to indicate whether an explicit indication of the The communication resources that the scheduled site or site group needs to use.
  • the resource indication mode field is a first indication
  • the first indication is used to indicate whether an explicit indication of the communication resource that needs to be used by the scheduled station or the site group is required in the current scheduling.
  • the resource indication mode field is a second indication, where the second indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, or the resource indication manner
  • the field is a third indication, and the third indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the current frame when transmitting the next frame of data.
  • the resource indication mode field is a fourth indication
  • the fourth indication is used to indicate one of the following or Any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate communication resources, the number of STAs or group groups that are indicated by default by communication resources, the STA or group of stations that are explicitly indicated to indicate communication resources, and the default indication The sum of the number of STAs or site groups of communication resources.
  • the resource indication mode field is a fifth indication of X bits
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data;
  • X is a positive integer.
  • the resource indication mode field is a sixth indication of Z bits, and the sixth indication is used to indicate that The default indication STA area and the size of the STA area are explicitly indicated; the STA or the station group in the STA area that is indicated by default indicates that the same or partially the same communication as in the previous frame is used when transmitting the current frame data.
  • the resource is explicitly indicated that at least one STA or group of stations in the STA area adopts a different communication resource than the previous frame when transmitting the current frame data; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the STA or the group to which the bit belongs is a default indicated STA area;
  • X is a positive integer.
  • the resource indication mode field is M The eighth indication of the bit
  • the eighth indication is used to indicate a transmission sequence of the current frame data; M is a positive integer.
  • an embodiment of the present invention provides a resource indication method, including:
  • the station STA receives the resource indication information sent by the access point AP, where the resource indication information is used to indicate the scheduled station or the site group, and the communication resource that the scheduled station or the site group needs to use, the resource indication
  • the information includes a resource indication mode field, where the resource indication mode field includes: indicating, for each of the scheduled sites or group of sites, the communication resource that needs to be used, or the default indication Communication resources used;
  • the STA performs communication by using the indicated communication resource according to the resource indication information.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication; the first indication is used to indicate Whether it is necessary to explicitly indicate the communication resources that need to be used by the scheduled station or group of sites in this scheduling.
  • the resource indication mode field is a second indication, where the second indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, or the resource indication manner
  • the field is a third indication, where the third indication is used to indicate whether all scheduled STAs or group of stations adopt the same or partially identical communication resources in the current frame when transmitting the next frame data;
  • the communicating, by the resource indication information, by using the indicated communication resource specifically includes:
  • the STA determines, according to the second indication, that all scheduled STAs or group groups are transmitting
  • the communication resources which are identical or partially identical to those in the previous frame are used, and the communication resources used for transmitting the frame data are determined according to the communication resources used when transmitting the previous frame data, and according to Determining that the transmission of the current frame data requires communication resources to be used for communication; or
  • the communication resource determines a communication resource to be used for transmitting the next frame of data, and performs communication according to the determined communication resource to be used for transmitting the next frame data.
  • the resource indication mode field is a fourth indication; the fourth indication is used to indicate one of the following or any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate the communication resource, and the number of STAs or group groups that indicate the communication resource by default, the being indicated The sum of the number of STAs or group of stations indicating the communication resource and the number of STAs or group of stations that are indicated by default.
  • the number of the STA or the site group that is the default indicated communication resource is obtained according to the fourth indication and/or Or the number of STAs or groups of stations that are explicitly indicated to be communication resources;
  • the STA traverses the resource indication information that is received by the STA or the group of the group that explicitly indicates the communication resource according to the number of the STAs or the group of the group that explicitly indicates the communication resource, to determine the newly allocated communication resource;
  • the resource indication mode field is a fifth indication of X bits, where the X is a positive integer
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data.
  • the STA learns that the STA or the site group is an STA or a site group that is explicitly indicated to be a communication resource according to the fifth indication, acquiring, according to the fourth indication and the fifth indication, the explicitly indicated The number of STAs or site groups of communication resources;
  • the STA traverses the resource indication information received by all STAs or group groups explicitly indicating the communication resource according to the number of STAs or group groups that are explicitly indicated to the communication resource, to determine the communication used to transmit the current frame data. Resources.
  • the STA determines, according to the fifth indication, that the STA or the site group is an STA or a site group that is indicated by a communication resource by default, acquiring, according to the fourth indication and the fifth indication, the acquired Default indicates the number of STAs or group of stations of the communication resource and/or the number of STAs or group of stations that are explicitly indicated to the communication resource;
  • the STA traverses all STAs or group groups explicitly indicated by the communication resource according to the STA or group of stations that are indicated by default to the communication resource and/or the number of STAs or group groups that are explicitly indicated to the communication resource.
  • the resource indication information is used to determine the newly allocated communication resource;
  • the resource indication mode field is a sixth indication of Z bits, and the sixth indication is used to indicate that The default indication STA area and the size of the STA area are explicitly indicated; the STA or the station group in the STA area that is indicated by default indicates that the same or partially the same communication as in the previous frame is used when transmitting the current frame data.
  • the resource is explicitly indicated that at least one STA or group of stations in the STA area adopts a different communication resource than the previous frame when transmitting the current frame data; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits, where the X is a positive integer ;
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the STA or the group to which the bit belongs is a default indicated STA area.
  • Determining, by the STA, the explicitly indicated in the STA area according to the sixth indication The number of STAs or group groups indicating communication resources, traversing all the resource indication information that is explicitly received by the STA area to determine the communication resources used to transmit the current frame data.
  • the STA acquires an arrangement position of the STA or the site group that is the default indication communication resource in the previous frame data, and according to the STA or the site group that is the default indication communication resource in the previous frame data.
  • the STA determines, according to the arrangement position, the newly allocated communication resource and the communication resource used for transmitting the previous frame data.
  • the resource indication mode field is an eighth indication of M bits, and the eighth indication is used to indicate The transmission sequence of the current frame data; M is a positive integer;
  • the communicating, by the resource indication information, by using the indicated communication resource specifically includes:
  • the STA determines, according to the resource indication information, a communication resource used for transmitting the next frame data.
  • an embodiment of the present invention provides an access point AP, including:
  • a processing unit configured to generate resource indication information, where the resource indication information is used to indicate a scheduled site or a group of sites, and a communication resource that needs to be used by the scheduled site or group of sites, where the resource indication information is included a resource indication mode field;
  • the resource indication mode field includes: for each of the scheduled sites or group of sites, explicitly indicating the communication resource to be used, or defaulting to indicating the communication to be used Resource
  • a transceiver unit configured to send the resource indication information to facilitate the scheduled site or The site group communicates via the indicated communication resource according to the resource indication information.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication; the first indication is used to indicate Whether it is necessary to explicitly indicate the communication resources that need to be used by the scheduled station or group of sites in this scheduling.
  • the resource indication mode field is a second indication, where the second indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, or the resource indication manner
  • the field is a third indication, and the third indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the current frame when transmitting the next frame of data.
  • the resource indication mode field is a fourth indication
  • the fourth indication is used to indicate one of the following or Any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate communication resources, the number of STAs or group groups that are indicated by default by communication resources, the STA or group of stations that are explicitly indicated to indicate communication resources, and the default indication The sum of the number of STAs or site groups of communication resources.
  • the resource indication mode field is a fifth indication of X bits
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data;
  • X is a positive integer.
  • the resource indication mode field is a sixth indication of Z bits, and the sixth indication is used to indicate that The default indication STA area and the size of the STA area are explicitly indicated; the STA or the station group in the STA area that is indicated by default indicates that the same or partially the same communication as in the previous frame is used when transmitting the current frame data.
  • a resource the indication indicating that there is at least one STA in the STA area Or the group of stations adopts different communication resources than the previous frame when transmitting the current frame data; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the STA or the group to which the bit belongs is a default indicated STA area;
  • X is a positive integer.
  • the resource indication mode field is M The eighth indication of the bit
  • the eighth indication is used to indicate a transmission sequence of the current frame data; M is a positive integer.
  • an embodiment of the present invention provides a station STA, including:
  • a transceiver unit configured to receive resource indication information sent by the access point AP, where the resource indication information is used to indicate a scheduled site or a group of sites, and a communication resource to be used by the scheduled site or group of sites.
  • the resource indication information includes a resource indication mode field, where the resource indication mode field includes: for each of the scheduled sites or group of sites, explicitly indicating the communication resource to be used, or a default indication The communication resources that need to be used;
  • a processing unit configured to perform communication by using the indicated communication resource according to the resource indication information.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication; the first indication is used to indicate Whether it is necessary to explicitly indicate the communication resources that need to be used by the scheduled station or group of sites in this scheduling.
  • the resource indication mode field is a second indication, where the second indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, or the resource indication manner
  • the field is a third indication, and the third indication is used to indicate all scheduled Whether the STA or the site group adopts the communication resources that are identical or partially identical to those used in the current frame when transmitting the next frame data;
  • the processing unit is specifically configured to:
  • the STA determines, according to the second indication, that all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, according to the previous frame transmitted.
  • the communication resource used in the data determines the communication resource to be used for transmitting the current frame data, and performs communication according to the determined communication resource that needs to be used for transmitting the frame data; or
  • the communication resource determines a communication resource to be used for transmitting the next frame of data, and performs communication according to the determined communication resource to be used for transmitting the next frame data.
  • the resource indication mode field is a fourth indication;
  • the fourth indication is used to indicate one of the following or any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate the communication resource, the number of STAs or group groups that indicate the communication resource by default, the indication indicating the communication resource The sum of the STA or group of stations and the number of STAs or group of stations that are indicated by default by communication resources.
  • the processing unit is specifically configured to:
  • a sixth possible implementation manner of the fourth aspect if the STA learns that the STA or the site group is an STA or a site group that is indicated by default And acquiring, according to the fourth indication, the STA or the station that is indicated by the default communication resource.
  • the STA traverses the resource indication information that is received by the STA or the group of the group that explicitly indicates the communication resource according to the number of the STAs or the group of the group that explicitly indicates the communication resource, to determine the newly allocated communication resource;
  • the resource indication mode field is a fifth indication of X bits, where the X is a positive integer
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data.
  • the processing unit is specifically configured to:
  • the STA learns that the STA or the site group is an STA or a site group that is explicitly indicated to be a communication resource according to the fifth indication, acquiring, according to the fourth indication and the fifth indication, the explicitly indicated The number of STAs or site groups of communication resources;
  • the STA traverses the resource indication information received by all STAs or group groups explicitly indicating the communication resource according to the number of STAs or group groups that are explicitly indicated to the communication resource, to determine the communication used to transmit the current frame data. Resources.
  • the processing unit is specifically configured to:
  • the STA determines that the STA or the site group is the STA or the site group that is indicated by the communication resource by default, the STA obtains the vacant according to the fourth indication and the fifth indication.
  • the STA traverses all STAs or group groups explicitly indicated by the communication resource according to the STA or group of stations that are indicated by default to the communication resource and/or the number of STAs or group groups that are explicitly indicated to the communication resource.
  • the resource indication information is used to determine the newly allocated communication resource;
  • the resource indication mode field is a sixth indication of Z bits, and the sixth indication is used to indicate that The default indication STA area and the size of the STA area are explicitly indicated; the STA or the station group in the STA area that is indicated by default indicates that the same or partially the same communication as in the previous frame is used when transmitting the current frame data.
  • the resource is explicitly indicated that at least one STA or group of stations in the STA area adopts a different communication resource than the previous frame when transmitting the current frame data; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits, where the X is a positive integer ;
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the STA or the group to which the bit belongs is a default indicated STA area.
  • the processing unit is specifically configured to:
  • the STA traverses all the resource indication information received by the explicitly indicated STA area according to the sixth indication and the number of STAs or group groups that are explicitly indicated to indicate the communication resource in the STA area, to Determine the communication resources used to transmit the current frame data.
  • the processing unit is specifically configured to:
  • the STA acquires an arrangement position of the STA or the site group that is the default indication communication resource in the previous frame data, and according to the STA or the site group that is the default indication communication resource in the previous frame data.
  • the STA determines, according to the arrangement position, the newly allocated communication resource and the communication resource used for transmitting the previous frame data.
  • the resource indication mode field is an eighth indication of M bits, and the eighth indication is used to indicate The transmission sequence of the current frame data; M is a positive integer;
  • the processing unit is specifically configured to:
  • the STA determines, according to the resource indication information, a communication resource used for transmitting the next frame data.
  • the AP generates resource indication information, where the resource indication information is used to indicate the scheduled site or the site group, and the communication resources and resources that need to be used by the scheduled site or the site group.
  • the indication information includes a resource indication mode field; the resource indication mode field includes: for each of the scheduled sites or the group of sites, an explicit indication of a communication resource to be used, or a default indication of a communication resource to be used, and a transmission resource Instructing information, so that the scheduled station or the group of the group communicates according to the resource indication information by using the indicated communication resource, which avoids the phenomenon that the resource indication information needs to include the complete communication resource every time the resource indication is performed in the prior art. , effectively reducing the overhead of resource indication information and reducing the waste of system resources.
  • FIG. 1 is a schematic structural diagram of a system for indicating a resource according to the present invention
  • FIG. 2 is a schematic flowchart of a resource indication method according to an embodiment of the present invention.
  • FIG. 3a is a schematic structural diagram 1 of resource indication information
  • FIG. 3b is a schematic structural diagram 2 of resource indication information
  • Figure 3c is a schematic structural view 1 of the tenth indication
  • Figure 5 is a schematic structural view 2 of the tenth indication
  • Figure 6 is a schematic structural view of a fifth indication
  • FIG. 7 is a schematic diagram of performing resource location information indication on an STA or a site group that is indicated by default by a communication resource;
  • Figure 8 is a schematic structural view of the seventh indication
  • 9 is a schematic diagram of resource indications for STAs or group groups that are indicated by default to communication resources and STAs or group groups that are explicitly indicated to be communication resources;
  • FIG. 10 is a schematic diagram of a processing rule of a seventh indication in resource indication information of a next frame when a certain STA or a site group does not correctly receive data;
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a resource indication apparatus according to the present invention.
  • Embodiment 12 is a schematic structural diagram of Embodiment 2 of a resource indication device according to the present invention.
  • FIG. 13 is a schematic structural diagram of Embodiment 1 of an AP according to the present invention.
  • FIG. 14 is a schematic structural diagram of Embodiment 1 of a STA according to the present invention.
  • FIG. 1 is a schematic structural diagram of a system for indicating a resource according to the present invention, as shown in FIG.
  • the STA 12 generally refers to various terminal devices, such as a pad, a netbook, a mobile phone, and the like.
  • the AP 11 connects the STAs 12 together, and the AP 11 sends a data frame containing the resource indication information to the STA 12, so that the STA 12 determines the destination site of the transmitted data, the location of the transmitted data, and the transmission parameters according to the resource indication information to perform data. transmission.
  • multiple APs need to be connected to one AP. Therefore, when the AP performs resource indication on multiple STAs at the same time, how to reduce the signaling overhead and reduce the waste of system resources is a very important issue.
  • FIG. 2 is a schematic flowchart of a resource indication method according to an embodiment of the present invention.
  • the executor of this embodiment may be an AP, or may be another device with an AP function.
  • the method in this embodiment may include:
  • Step 201 The access point AP generates resource indication information, where the resource indication information is used to indicate a scheduled station or a site group, and the communication resource that needs to be used by the scheduled site or the site group, and the resource indication information. Include a resource indication mode field; the resource indication mode field includes: for each of the scheduled sites or group of sites, explicitly indicating the communication resource to be used, or a default indication that the required use Communication resources.
  • the explicit indication that the communication resource needs to be used refers to the communication resource that the AP will completely indicate the scheduled site or the site group needs to use; and the default indication that the communication resource needs to be used refers to the AP does not need to be used.
  • the scheduled station or group of stations can determine the communication resources needed to transmit the frame data according to the communication resources used in the previous frame, or according to The communication resource used when transmitting the frame data determines the communication resource to be used when transmitting the next frame data.
  • the communication resources that are identical or partially identical to those used in the previous frame are used, or the same or partially the same communication as that used in the current frame is used when transmitting the next frame data.
  • the indication of the communication resource may be performed in a default manner, and otherwise, the indication of the communication resource is performed in an explicit manner.
  • the communication resource includes site identification information, resource location information, and resource parameter information.
  • Step 202 Send the resource indication information, so that the scheduled station or group of stations communicates by using the indicated communication resource according to the resource indication information.
  • FIG. 3a is a schematic structural diagram 1 of resource indication information
  • FIG. 3b is a schematic structural diagram 2 of resource indication information
  • an AP is in a signaling field (Signal Field; SIG) B or a trigger frame.
  • the first indication of 1 bit may be used, where the first indication may be, for example, a compressed mode indication field, which is used to indicate whether an explicit indication of the communication resource that needs to be used by the scheduled station or the site group is required in the current scheduling. That is, whether it is necessary to indicate complete communication resources when performing resource indication in the current scheduling, for example, for each scheduled STA or group of sites, whether to indicate site identification information, resource location information, and resources Parameter information.
  • the resource indication is performed by using incomplete communication resources, for example, At least one of site identification information, resource location information, and resource parameter information in the communication resource may be indicated.
  • the complete communication resource is indicated.
  • the resource indication is performed by using the incomplete communication resource, and the present invention does not specifically limit this.
  • the site identification information is used to identify the STA or the site group;
  • the resource location information is used to indicate the guidance of the resource block occupied in frequency and/or in time, for example, to indicate at least one of the following parameters: a resource block.
  • the resource parameter information includes one or any combination of the following: a modulation and coding strategy MCS of the data transmission, a low density parity check code LDPC, Space time block coding STBC, etc.
  • the resource indication mode field may be a second indication and/or a third indication; the second indication is used to indicate whether all scheduled STAs or group of sites adopt the previous frame when transmitting the current frame data.
  • the communication resources are identical or partially identical, or the third indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the current frame when transmitting the next frame of data. .
  • the types of STAs or group groups that use the communication resources that are identical or partially identical in the previous frame are included in the following three types: (1) resources of resources used when transmitting the frame data.
  • the STA or the site group whose location information is the same as the resource location information of the resource used when transmitting the previous frame data; (2) the resource parameter information of the resource used when transmitting the frame data and the resource resource used when transmitting the previous frame data STAs or station groups with the same parameter information; (3) STAs with the same resource location information and resource parameter information of the resources used when transmitting the previous frame data are the same as the resource location information and resource parameter information of the resources used when transmitting the previous frame data. Or a site group.
  • the resource parameter information needs to be indicated when performing resource indication on the STA or the site group.
  • the indication is required when performing resource indication on the STA or the site group.
  • the resource location information is sufficient, and for the third type, no resource indication is required for the STA or the site group.
  • the resource, or the third indication is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources as those employed in the present frame when transmitting the next frame of data.
  • the resource resources are not indicated to the site or the site group;
  • the communication resource used by the STA or the site group to transmit the current frame data is the same as the communication resource used when transmitting the previous frame data, according to the order of the STAs or the site group that is indicated by the default communication resource in the previous frame, Perform resource indications on a site-by-site or site-group basis to determine the communication resources used by the site or group of sites to transmit the current frame data.
  • the same or the same communication resources are used in this frame, and all STAs or groups of stations use the same when transmitting the frame data.
  • a similar or partially identical communication resource is similar in one frame, and details are not described herein again.
  • the uplink multi-user transmission is introduced, and the channel detection information can be requested from multiple users simultaneously through the trigger frame, and then the channel detection information is requested from the same batch of users multiple times through multiple trigger frames, so
  • all users are STAs or group groups that indicate communication resources by default. Therefore, the second indication can be used to indicate that the current transmission uses the same or partially the same communication resources as the previous transmission. For example, after the AP broadcasts the null data packet declaration and the null data packet trigger frame to all the STAs or the site group, each STA or the site group simultaneously feeds back the multi-user channel state information to the AP. At this time, the AP sets the value of the second indication.
  • all STAs or site groups are STAs or site groups that are indicated by default to communication resources.
  • the trigger frame including the resource indication information there may be multiple types, such as: trigger frame for requesting channel sounding information, requesting a trigger frame of the energy-saving polling frame, and requesting the touch of the confirmation information. Sending a frame or the like. Therefore, in this embodiment, by combining the second indication with the type of the trigger frame, it is also indicated whether all STAs or group groups are STAs or group groups that are indicated by default communication resources, specifically, If the STA or the site group receives a certain type of trigger frame, the second indication may be 1 by default, that is, all STAs or group groups are indicated as STAs or group groups that indicate communication resources by default.
  • the triggering frame may carry the second indication by default, and the value of the second indication is 1, that is, all STAs or groups of stations are transmitting.
  • the current frame data is the same or partially the same communication resource as that used in the previous frame.
  • the second indication may also be combined with other types of trigger frames.
  • the specific type of the trigger frame is not limited by the present invention.
  • the indication manner of the third indication is similar to the second indication, and details are not described herein again.
  • first indication, the second indication, and the third indication may be included in the resource indication information, or only one of them may be included.
  • the resource indication method provided by the embodiment of the present invention when setting the second indication and/or the third indication in the resource indication information, when determining that all the STAs or the site group are the STAs or the site group that are the default indication communication resources,
  • the communication resource used for transmitting the current frame or the next frame data is directly determined by transmitting the communication resource used by the previous frame or the current frame data, thereby avoiding the resource indication information when the resource indication is performed every time in the prior art. All of them need to explicitly indicate the phenomenon that the scheduled STA or the site group needs to use the communication resources, thereby effectively reducing the overhead of the resource indication information and reducing the waste of system resources.
  • FIG. 3c is a schematic structural diagram 1 of the tenth indication
  • FIG. 5 is a schematic structural diagram 2 of the tenth indication
  • the resource indication information is physical layer signaling or media connection.
  • a Medium Access Control (MAC) frame the resource indication information or the MAC frame includes a ninth indication or a tenth indication
  • the ninth indication may be, for example, a resource reuse bit
  • the tenth indication may be, for example, a resource reuse bit.
  • each bit in the ninth indication or the tenth indication is used to indicate whether the STA or the group of stations corresponding to the bit adopts the same or partially identical communication in the current frame when transmitting the next frame data. Resources.
  • the ninth indication or the tenth indication may be stored in the resource indication information, or may be stored in the MAC frame to indicate whether the STA or the site group adopts and transmits the next frame data.
  • the communication resources of the same or partially the same are used in the frame to play the role of notifying the STA or the group of sites in advance.
  • the ninth indication or the tenth indication is stored in the resource indication information, for the indication manner of the ninth indication, when the resource indication is performed for each STA or the group group, one of the resource indication information is added.
  • a new bit is used to indicate whether the STA or the group of stations adopts the same or partially the same communication resource as the one in the frame when transmitting the next frame data;
  • the tenth indication of the N bits indicates for each STA or group of stations in the group of stations, where N is a positive integer. By parsing the ninth indication or the tenth indication, the STA or the station group can know in advance whether it adopts the communication resources that are identical or partially identical to those used in the current frame when transmitting the next frame data. For example, as shown in FIG.
  • the tenth indication is 1110100, it indicates that the communication resources used by STA1, STA2, STA5, and STA6 when transmitting the next frame data are different from the communication resources used in the current frame, and the site group ( Multi-User Group; abbreviation: MUG)1, STA3, and STA8 use the same or partially identical communication resources in the transmission of the next frame data.
  • MUG Multi-User Group
  • the ninth indication or the tenth indication is stored in the MAC frame, one of the MAC frame headers of a certain STA or station group data may be used to indicate whether the STA or the group of stations is being transmitted when transmitting the next frame of data.
  • the STA or the site group that indicates the communication resource by default may also indicate whether the STA or the site group transmits the next frame data by using a ten-digit indication of N bits in the MAC frame of the STA or the site group data.
  • the communication resources that are identical or partially identical to those used in this frame are used to play the role of notifying the STA or the group of sites in advance.
  • FIG. 4 is a schematic diagram of resource location information indication.
  • the resource indication mode field is a fourth indication; the fourth indication is used to indicate one of the following or any combination thereof: The number of STAs or group groups of communication resources, the number of STAs or group groups that indicate the communication resources by default, the sum of the number of STAs or group of stations that indicate the communication resource and the number of STAs or group groups that are indicated by default. .
  • resource location information of a certain STA or a site group does not need to depend on resource location information of other sites or site groups, that is, resource location information of each STA or site group is independent of each other, that is, For a certain STA or group of sites, when the starting position of the resource block and the size of the resource block are clearly indicated, the AP does not depend on other STAs or group of sites when guiding the resource location information.
  • Resource location information when the starting position of the resource block and the size of the resource block are clearly indicated, the AP does not depend on other STAs or group of sites when guiding the resource location information.
  • the MU-MIMO site group consisting of STA5, STA6, STA7, and STA8 has clearly indicated that the resource block used by the MU-MIMO site group has a starting position of 5 and a resource block size of 4, and the AP is instructing the resource location information thereof.
  • the resource block used by the MU-MIMO site group has a starting position of 5 and a resource block size of 4, and the AP is instructing the resource location information thereof.
  • resource location information There is no need to rely on resource location information for other STAs or site groups.
  • each time the resource indication is performed it is necessary to first count the number of STAs or group groups that are indicated by default to the communication resources and/or STAs or group groups that are explicitly indicated to the communication resources.
  • the STA or the site group that is indicated by the default communication resource and the STA or the site group that is indicated by the communication resource are required to perform resource indication, the STA or the site group that is indicated by the default communication resource needs to be counted.
  • the number of STAs or group groups that are explicitly indicated to the communication resource if only the STA or the group group that explicitly indicates the communication resource needs to perform resource indication, only the number of STAs or the group group that explicitly indicates the communication resource can be counted. .
  • the STA or the group of the station knows that the STA or the station group that is the default indication communication resource when transmitting the current frame data, that is, transmits the current frame.
  • the data uses the same or partially identical communication resources as in the previous frame, and the STA or the site group obtains the STA or the site group that is indicated by the default communication resource and/or the STA or the site group that is explicitly indicated the communication resource. After the quantity, all the resource indication information received by the STA or the group group that explicitly indicates the communication resource is traversed to obtain the newly allocated communication resource.
  • the ninth indication or the tenth indication of the previous frame is combined to obtain location information of all STAs or groups of sites, for example, its order in all STAs or groups of sites, according to the arrangement.
  • the order determines the communication resources used to transmit the previous frame of data.
  • the AP sorts the STAs or the site groups.
  • the STAs or the site groups that explicitly indicate the communication resources are first arranged, and the STAs or the site groups that are indicated by the default communication resources are arranged in the indicated communication resources.
  • Behind the STA or group of stations, and for the relative order of STAs or groups of stations that are indicated by default by communication resources are arranged in the order indicated in the previous frame. For example, as shown in FIG.
  • MUG3, STA4, and STA11 are STAs or station groups that are explicitly indicated to indicate communication resources, and STA1, STA2, STA5, and STA6 are indicated in the previous frame.
  • the STA that indicates the communication resource by default wherein the order of the STAs that are indicated by the default communication resource is sorted according to the relative order in the previous frame, and when the resource indication is performed, three explicitly indicated communication resources are first performed.
  • the STA that is indicated by the default communication resource After the STA that is indicated by the default communication resource knows its arrangement position in all STAs, it can be known which resource indication information is directed to itself, thereby determining that the previous frame data is transmitted.
  • the STA or the site group learns that it is an STA or a site group that is explicitly indicated to the communication resource, after acquiring the number of STAs or site groups that are explicitly indicated to the communication resource, it will traverse all STAs or group groups that are explicitly indicated to indicate the communication resource.
  • the resource indication information to search for all the site identification information in all the resource indication information to determine whether data is transmitted to itself, and if yes, determine the communication resource to be used for transmitting the frame data according to the resource indication information. .
  • the resource indication method provided by the embodiment of the present invention by using the fourth indication, knows the number of STAs or group groups that are indicated by default to the communication resource and/or the number of STAs or group groups that are explicitly indicated to the communication resource, and indicates the communication resource according to the default indication.
  • the number of STAs or groups of stations and/or the number of STAs or groups of stations that are explicitly indicated to indicate communication resources and the ninth or tenth indication carried in the previous frame of data is known to be the default indication when the frame data is transmitted.
  • the STA or the group of the communication resource is also the STA or the group of the group that explicitly indicates the communication resource, thereby respectively indicating the communication resources that the scheduled STA or the group needs to use, and avoiding the resource indication every time in the prior art.
  • the resource indication information needs to contain the complete communication resource, which effectively reduces the overhead of the resource indication information and reduces the waste of system resources.
  • an incremental indication may be taken in addition to the indication in the prior art.
  • the channel twice before and after does not change significantly, even if the MCS does not change much, so the amount of change of the MCS can be indicated by 2 bits without using 3 bits for complete indication.
  • Resource parameters For a specific resource parameter indication of a certain format, the solution of the present invention is not specifically limited.
  • FIG. 6 is a schematic structural diagram of a fifth indication.
  • the resource indication mode field is a fifth indication of X bits; each bit in the fifth indication is respectively It is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data.
  • resource location information of a certain STA or a site group does not need to depend on resource location information of other sites or site groups, that is, resource location information of each STA or site group is independent of each other.
  • each time the resource indication is performed it is necessary to first count the number of STAs or group groups that are indicated by default to the communication resources and/or STAs or group groups that are explicitly indicated to the communication resources.
  • the fourth indication may also be obtained by the fourth indication.
  • the number of STAs or site groups for communication resources For example, as shown in FIG. 6, firstly, a total of 7 STAs and a station group can be known through the fourth indication, and the fifth indication is 1101011, indicating that STA1, STA2, MUG1, STA3, and STA8 are being transmitted when transmitting the current frame data.
  • STA5 and STA6 are STAs that indicate the communication resource by default when transmitting the current frame data, and further can know the STA or the group of the group that is explicitly indicated to indicate the communication resource when transmitting the current frame data.
  • the number is 5, and the number of STAs that are indicated by default to communication resources is 2.
  • the resource indication information may include the tenth indication shown in FIG. 5 and the fifth indication shown in FIG. 6. At this time, when the STA or the site group learns that it is the STA or the site group that is the default indication communication resource according to the tenth indication of the previous frame, the STA or the site group that is the default indication communication resource is learned through the fourth indication.
  • the sum of the number of STAs or group groups that are explicitly indicated to the communication resource and then, in conjunction with the fifth indication of the current frame, obtain location information of all STAs or group groups when the STA or the group of stations transmits the current frame data, when After the STA or the site group that indicates the communication resource by default knows its arrangement position in all the STAs or the site group, it can know which resource indication information is directed to itself, thereby determining the data of the previous frame when it is transmitted.
  • the STA or the group of the station knows that it is the STA or the group of the group that explicitly indicates the communication resource according to the tenth indication of the previous frame, the STA or the group of the station that is indicated by the default indication communication resource can be informed by the fourth indication. And indicating the sum of the number of the STAs or the group of the communication resources, and then traversing all the resource indication information received by the STA or the group of the group indicating the communication resource, in combination with the fifth indication of the frame, to search for all the resource indication information.
  • the own site identification information is used to determine whether data is transmitted to itself, and if so, the communication resources required to transmit the frame data are determined according to the resource indication information.
  • the resource location information of each STA or group of sites needs to depend on the resource location information of other STAs or site groups, that is, when the AP guides resource location information to a certain STA or group of sites, in order to save overhead, only the same is given.
  • the size of the resource block used without giving the starting position of the resource block.
  • the STA or the site group needs to accumulate the resource block sizes of all STAs or site groups that are listed in front of it, thereby knowing the The starting value of the location of the resource block.
  • the STA or the group of stations explicitly indicating the communication resource needs to rely on the resource location information of the STA or the site group that is indicated by the default communication resource, when the resource indication is performed, the communication indicated by the default is required.
  • the resource location information of the STA or the site group of the resource is indicated, so that the STA or the site group that is explicitly indicated by the communication resource can calculate its own location by the resource location information of the STA or the site group that is indicated by the default communication resource. Location information of the resource block.
  • FIG. 7 is a schematic diagram of resource location information indication for an STA or a site group that is indicated by default to a communication resource.
  • FIG. 7 is different from the embodiment shown in FIG. 5 or FIG.
  • the indication of the resource location information of the STA or the site group that is indicated by the communication resource by default is also included. Specifically, for the STA or the site group that is indicated by default to the communication resource, it may determine whether a certain resource indication information is to indicate itself by calculating the resource location information.
  • the starting position of the resource block is 3, and the size of the resource block is 4, when transmitting the current frame data
  • the STA or the site group that is indicated by the default communication resource may also determine the resource location information by combining the ninth indication or the tenth indication.
  • the STA or the site group that is indicated by default to the communication resource may be combined.
  • the ninth indication or the tenth indication carried in one frame of data, determining that it is in the tenth The location in the indication, thereby knowing that it is the first STA or group of stations that are indicated by default to the communication resource when transmitting the current frame data, thereby determining the resource location information.
  • the tenth indication is 1110100, and for STA6, it is known that there are 4 default indication communication resources when transmitting the next frame data.
  • the fifth indication is 1110010
  • STA6 knows that it is the fourth "1" on its behalf, which is ranked sixth in all stations. At this time, it can know which resource according to the location.
  • the indication information is used to indicate itself to determine the resources used to transmit the data.
  • the function of the fifth indication may also be implemented in a bit manner, that is, each STA or group of stations is indicated by bit by bit to indicate whether the STA or the group corresponding to the bit transmits the current frame data.
  • the communication resources that are identical or partially identical to those used in the previous frame are employed.
  • the foregoing resource indication method shown in FIG. 3c to FIG. 7 can learn, by the total number of all STAs or group groups and the fifth indication, STAs or group groups that are indicated by default to communication resources and/or STAs that are explicitly indicated to be communication resources or The number of site groups, and according to the number of STAs or group groups that are indicated by default to the communication resources and/or the number of STAs or group groups that are explicitly indicated to the communication resources, and the tenth indication or the previous frame and the original carried in the previous frame data.
  • the location information of the frame is the same, and the type of the STA or the group of the station when the current frame data is transmitted, thereby indicating the communication resources that the STA or the site group needs to use, respectively, and avoiding the resource indication every time the resource indication is performed in the prior art.
  • the information needs to contain the complete communication resources, which effectively reduces the overhead of resource indication information and reduces the waste of system resources.
  • the resource indication mode field is a sixth indication of Z bits; the sixth indication is used to indicate that the STA area is indicated by default and the size of the STA area is explicitly indicated, for example, The number of minimum resource blocks that the zone contains.
  • the STA or the group in the STA area is configured to use the same or partially identical communication resources in the previous frame when transmitting the current frame data, and is explicitly indicated that at least one STA or group of stations in the STA area is The transmission of the frame data is performed using a different communication resource than in the previous frame; Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits, and each bit in the seventh indication It is used to indicate whether the STA or the group to which the bit corresponds is the area indicated by the STA.
  • the bandwidth may be divided to indicate that the STA area is indicated by default and the STA area is explicitly indicated. In a specific implementation process, the entire bandwidth may be divided into several parts according to a preset mode. Each part is an area.
  • each area is 20M.
  • the selection may be performed according to actual conditions, and the size of each area may be indicated when each frame of data is transmitted, or may be designed by adopting preset rules, and the specific division of the area by the present invention. There are no restrictions on the way and indication.
  • the seventh indication is used to indicate which STAs or group groups in the area are STAs or group groups that indicate the communication resources by default, and at least one of the areas is explicitly indicated.
  • STA or site group of communication resources For example, FIG. 8 is a schematic structural diagram of the seventh indication. As shown in FIG. 8 , assuming that the entire bandwidth is 20 M, the bandwidth is divided into three regions according to a preset mode, and if at least one is present in a certain region, The STA or the group of the station indicating the communication resource, the STA or the group of the station in the certain area is the STA or the group of the station that indicates the communication resource by default. Therefore, the indication of the first downlink frame is 111.
  • At least one STA or group of stations indicating the communication resource is explicitly present in the three areas, and the indication bit 100 of the second downlink frame indicates that there is at least one STA or group of stations explicitly indicating the communication resource in the first area.
  • the STAs or group groups in the second area and the third area are all STAs or group groups that indicate communication resources by default. It should be noted that 1 and 0 here are relative values, and 1 may represent STAs or group groups in the area that are all indicated by default to communication resources, and 0 means that at least one is present in the area. Express the STA or group of stations indicating the communication resource.
  • the STA or the site group that is the default indication communication resource at this time is the STA or the site with the same resource location information of the resource used when transmitting the current frame data and the resource location information of the resource used when transmitting the previous frame data. group.
  • the STA or the group of the station determines, according to the seventh indication, that the STA or the group group belongs to the default indicated STA area when transmitting the current frame data, it is necessary to learn, according to the fourth indication, the default included in each area.
  • the number of the STAs or the group of stations and the order of the STAs in the default frame in the previous frame can be used to know the location information of the STA or the group in the default STA area when transmitting the current frame data. From this, it can be determined which resource indication information is directed to itself to determine the newly allocated communication resource and the communication resource used to transmit the previous frame of data.
  • the STA or the group of the station When the STA or the group of the station knows that the area to which the STA or the station group belongs is the indicated STA area when transmitting the current frame data according to the seventh indication, all the explicitly indicated STA areas are traversed according to the size of the STA area that is explicitly indicated.
  • the received resource indication information searches for the site identification information included in the resource indication information to determine whether data is transmitted to itself, and if yes, determines the communication required to transmit the frame data according to the resource indication information. Resources.
  • the STA Or the group of stations may be both within the default indicated STA area and within the explicitly indicated STA area.
  • the site or group of sites first needs to read the new resource indication information in the explicitly indicated site area, and also needs to combine the communication resources of the previous frame in the default indication site area to read the reused part. Resource indication information.
  • the AP indicates the area indicated by the seventh indication to be 0 and the area indicated by 1.
  • all indications that are explicitly indicated by the STA area may be fed together for resource indication, because each station or group of sites clearly knows the starting value of the location of each regional resource block, so even if it is missing, it is defaulted. Indicates the location information of the sites in the site area, and each STA or group of sites can still know where the resources are located.
  • FIG. 9 is a schematic diagram of resource indication for an STA or a group of stations that are indicated by default to a communication resource and an STA or a group of stations that are explicitly indicated to be a communication resource. As shown in FIG.
  • the function of the seventh indication may also be implemented in a bit manner, that is, the area to which each STA belongs is indicated by bit by bit.
  • the resource indication method provided by the embodiment of the present invention by using the sixth indication and the seventh indication, distinguish whether the STA belongs to the default indicated STA area when transmitting the local frame data, thereby indicating the communication resources that the STA or the site group needs to use, respectively.
  • the resource indication information needs to include the complete communication resource, which effectively reduces the overhead of the resource indication information and reduces the waste of system resources.
  • FIG. 10 is a schematic diagram of a processing rule of a seventh indication in the resource indication information of the next frame when a certain STA or a site group does not receive data correctly. As shown in FIG.
  • downlink is performed.
  • the AP does not receive the acknowledgement information of the STA3
  • the downlink frame 3 is transmitted, even if the area 2 is the default indicated STA area, the area 2 is indicated as the explicitly indicated STA area, and the area is The site of 2 re-directs the resource.
  • the resource indication mode field is an eighth indication of M bits; the eighth indication is used to indicate a transmission sequence of the current frame data; and M is a positive integer.
  • an eighth indication of 2 bits or 3 bits may be added to the resource indication information to indicate a transmission sequence of the current data frame to prevent the STA or the site group from transmitting the data frame.
  • the eighth indication of the first frame data is 00
  • the second frame is 01
  • the third frame is 10
  • the fourth frame is 11, if a certain STA or group of stations transmits the first frame data according to the tenth Instructing that it is the STA or the group of stations that indicate the communication resource by default when transmitting the second frame data, but the STA or the group of stations finds that the second frame data is not received according to the eighth indication due to a collision or the like.
  • the eighth indication has only 2 bits, then for the fifth frame of data, the 00 is used again for guidance. It should be noted that, since the uplink and downlink services are generally different, the uplink frame and the downlink frame can be separately guided. Of course, the guidance can also be performed together. For the specific guidance manner of the eighth indication, the present invention does not Special restrictions.
  • the resource indication method provided by the embodiment of the present invention by setting an eighth indication in the resource indication information, indicates the transmission sequence of the current data frame, avoiding the leakage phenomenon of the data frame, and improving the reliability of the system.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a resource indication apparatus according to the present invention.
  • the resource indication apparatus provided by the embodiment of the present invention includes a processing unit 11 and a transceiver unit 12.
  • the processing unit 11 is configured to generate resource indication information, where the resource indication information is used to indicate a scheduled station or a group of sites, and a communication resource that needs to be used by the scheduled site or group of sites, where the resource indication information is Include a resource indication mode field; the resource indication mode field includes: for each of the scheduled sites or group of sites, explicitly indicating the communication resource to be used, or a default indication that the required use Communication resources;
  • the transceiver unit 12 is configured to send the resource indication information, so that the scheduled station or group of stations communicates according to the resource indication information by using the indicated communication resource.
  • the AP generates resource indication information, where the resource indication information is used to indicate the scheduled station or the site group, and the communication resources to be used by the scheduled site or the site group, and the resource indication information Contains the resource indication mode field; resource indication mode The field includes: for each of the scheduled stations or group of sites, explicitly indicating the communication resources to be used, or the default indicating the communication resources to be used, and sending the resource indication information to facilitate the scheduled site or group of sites.
  • the communication is performed by the indicated communication resource, which avoids the phenomenon that the resource indication information needs to include the complete communication resource when the resource indication is performed in the prior art, thereby effectively reducing the overhead of the resource indication information and reducing A waste of system resources.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication, and the first indication is used to indicate whether an explicit indication of the communication resource that needs to be used by the scheduled station or the site group is required in the current scheduling.
  • the resource indication mode field is a second indication, where the second indication is used to indicate whether all scheduled STAs or group of sites use the same data in the previous frame when transmitting the current frame data or Part of the same communication resource, or the resource indication mode field is a third indication, where the third indication is used to indicate whether all scheduled STAs or group of sites adopt the same frame data when transmitting the next frame data.
  • Communication resources that are identical or partially identical.
  • the resource indication mode field is a fourth indication; the fourth indication is used to indicate one of the following or any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate the communication resource, and the communication resource is indicated by default The number of STAs or groups of stations, the sum of the number of STAs or groups of stations that are explicitly indicated to indicate communication resources and the number of STAs or groups of stations that are indicated by default.
  • the resource indication mode field is a fifth indication of X bits
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data;
  • X is a positive integer.
  • the resource indication mode field is a sixth indication of the Z bit; the sixth indication is used to indicate that the STA area is indicated by default and the size of the STA area is explicitly indicated;
  • the STA or the group of stations adopts the communication resources that are identical or partially identical to those used in the previous frame when transmitting the current frame data, and the indicated STA indicates that at least one STA or group of stations in the STA area transmits the current frame data. Adopting a different communication resource than in the previous frame; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the bit is a default indicated STA area
  • X is a positive integer.
  • the resource indication mode field is an eighth indication of M bits
  • the eighth indication is used to indicate a transmission sequence of the current frame data; M is a positive integer.
  • the resource indication device of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a resource indication apparatus according to the present invention.
  • the resource indication apparatus provided by the embodiment of the present invention includes a transceiver unit 21 and a processing unit 22.
  • the transceiver unit 21 is configured to receive resource indication information sent by the access point AP, where the resource indication information is used to indicate the scheduled site or group of sites, and the communication resources that need to be used by the scheduled site or group of sites.
  • the resource indication information includes a resource indication mode field, where the resource indication mode field includes: for each of the scheduled sites or group of sites, explicitly indicating the communication resource to be used, or default Indicates the communication resource that needs to be used; the processing unit 22 is configured to perform communication by using the indicated communication resource according to the resource indication information.
  • the resource indication device provided by the embodiment of the present invention, the STA receives the resource indication information sent by the access point AP, and the resource indication information is used to indicate the scheduled station or the site group, and the communication to be used by the scheduled site or the site group.
  • the resource indication information includes a resource indication mode field, where the resource indication mode field includes: an explicit indication indicating a communication resource to be used for each of the scheduled sites or the group of sites, or a default indication of a communication resource to be used. And communicating according to the resource indication information by using the indicated communication resource, thereby avoiding the phenomenon that the resource indication information needs to include the complete communication resource every time the resource indication is performed in the prior art, thereby effectively reducing the resource indication information. Overhead, reducing the waste of system resources.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication, and the first indication is used to indicate whether an explicit indication of the communication resource that needs to be used by the scheduled station or the site group is required in the current scheduling.
  • the resource indication mode field is a second indication; the second indication is used to indicate the location Whether the scheduled STA or the group of the station uses the communication resource that is identical or partially identical to the previous frame when transmitting the current frame data, or the resource indication mode field is a third indication, the third indication Used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the current frame when transmitting the next frame of data;
  • the processing unit is specifically configured to:
  • the STA determines, according to the second indication, that all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, according to the previous frame transmitted.
  • the communication resource used in the data determines the communication resource to be used for transmitting the current frame data, and performs communication according to the determined communication resource that needs to be used for transmitting the frame data; or
  • the communication resource determines a communication resource to be used for transmitting the next frame of data, and performs communication according to the determined communication resource to be used for transmitting the next frame data.
  • the resource indication device of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the resource indication mode field is a fourth indication; the fourth indication is used to indicate one of the following or any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate the communication resource, and the communication resource is indicated by default The number of STAs or groups of stations, the sum of the number of STAs or groups of stations that are explicitly indicated to indicate communication resources and the number of STAs or groups of stations that are indicated by default.
  • processing unit is specifically configured to:
  • processing unit is specifically configured to:
  • Point group acquiring the number of STAs or group groups that are indicated by default to the communication resource and/or the number of STAs or group groups that are explicitly indicated to the communication resource;
  • the STA traverses the resource indication information that is received by the STA or the group of the group that explicitly indicates the communication resource according to the number of the STAs or the group of the group that explicitly indicates the communication resource, to determine the newly allocated communication resource;
  • the resource indication mode field is a fifth indication of X bits; wherein the X is a positive integer;
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data.
  • processing unit is specifically configured to:
  • the STA learns that the STA or the site group is an STA or a site group that is explicitly indicated to be a communication resource according to the fifth indication, acquiring, according to the fourth indication and the fifth indication, the explicitly indicated The number of STAs or site groups of communication resources;
  • the STA traverses the resource indication information received by all STAs or group groups explicitly indicating the communication resource according to the number of STAs or group groups that are explicitly indicated to the communication resource, to determine the communication used to transmit the current frame data. Resources.
  • processing unit is specifically configured to:
  • the STA determines that the STA or the site group is the STA or the site group that is indicated by the communication resource by default, the STA obtains the vacant according to the fourth indication and the fifth indication.
  • the resource indication mode field is a sixth indication of the Z bit; the sixth indication is used to indicate that the STA area is indicated by default and the size of the STA area is explicitly indicated;
  • the STA or the group of stations adopts the communication resources that are identical or partially identical to those used in the previous frame when transmitting the current frame data, and the indicated STA indicates that at least one STA or group of stations in the STA area transmits the current frame data. Adopting a different communication resource than in the previous frame; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits; wherein the X is a positive integer;
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the bit is a default indicated STA area.
  • processing unit is specifically configured to:
  • the STA traverses all the resource indication information received by the explicitly indicated STA area according to the sixth indication and the number of STAs or group groups that are explicitly indicated to indicate the communication resource in the STA area, to Determine the communication resources used to transmit the current frame data.
  • processing unit is specifically configured to:
  • the STA acquires the STA or the site group that is indicated by the default communication resource in the previous frame data. Arranging the location, and obtaining the transmission book according to the arrangement position of the STA or the site group that is indicated by the default communication resource in the previous frame data, and the number of STAs or site groups in the default indicated STA area.
  • the STA or the group group that is indicated by the default communication resource is arranged in the default indicated STA area;
  • the STA determines, according to the arrangement position, the newly allocated communication resource and the communication resource used for transmitting the previous frame data.
  • the resource indication mode field is an eighth indication of M bits; the eighth indication is used to indicate a transmission sequence of the current frame data; M is a positive integer;
  • the processing unit is specifically configured to:
  • the STA determines, according to the resource indication information, a communication resource used for transmitting the next frame data.
  • the resource indication device of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of Embodiment 1 of an AP according to the present invention.
  • the AP provided by the embodiment of the present invention includes a processor 31 and a transmitter 32.
  • the processor 31 generates resource indication information, where the resource indication information is used to indicate a scheduled station or a group of sites, and a communication resource to be used by the scheduled site or group of sites, where the resource indication information is included.
  • a resource indication mode field includes: for each of the scheduled sites or group of sites, explicitly indicating the communication resource to be used, or defaulting to indicating the communication to be used.
  • the resource 32 is configured to send the resource indication information, so that the scheduled station or group of stations communicates according to the resource indication information by using the indicated communication resource.
  • the AP of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication, and the first indication is used to indicate whether an explicit indication of the communication resource that needs to be used by the scheduled station or the site group is required in the current scheduling.
  • the resource indication mode field is a second indication; the second indication is used to indicate the location Whether the scheduled STA or the group of the station uses the communication resource that is identical or partially identical to the previous frame when transmitting the current frame data, or the resource indication mode field is a third indication, the third indication It is used to indicate whether all scheduled STAs or groups of stations use the same or partially identical communication resources in the current frame when transmitting the next frame of data.
  • the resource indication mode field is a fourth indication; the fourth indication is used to indicate one of the following or any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate the communication resource, and the communication resource is indicated by default The number of STAs or groups of stations, the sum of the number of STAs or groups of stations that are explicitly indicated to indicate communication resources and the number of STAs or groups of stations that are indicated by default.
  • the resource indication mode field is a fifth indication of X bits
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data;
  • X is a positive integer.
  • the resource indication mode field is a sixth indication of the Z bit; the sixth indication is used to indicate that the STA area is indicated by default and the size of the STA area is explicitly indicated;
  • the STA or the group of stations adopts the communication resources that are identical or partially identical to those used in the previous frame when transmitting the current frame data, and the indicated STA indicates that at least one STA or group of stations in the STA area transmits the current frame data. Adopting a different communication resource than in the previous frame; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the STA or the group to which the bit belongs is a default indicated STA area;
  • X is a positive integer.
  • the resource indication mode field is an eighth indication of M bits
  • the eighth indication is used to indicate a transmission sequence of the current frame data; M is a positive integer.
  • the AP of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of Embodiment 1 of a STA according to the present invention.
  • the STA provided by the embodiment of the present invention includes a receiver 41 and a processor 42.
  • the receiver 41 is configured to receive resource indication information sent by the access point AP, where the resource refers to The indication information is used to indicate the scheduled station or the group of the station, and the communication resource to be used by the scheduled station or the group of the node, where the resource indication information includes a resource indication mode field; the resource indication mode field includes: Determining, for each of the scheduled stations or groups of stations, the communication resources that need to be used, or by default, indicating the communication resources that need to be used; the processor 42 is configured to use the resource indication information according to the resources Communication is performed by the indicated communication resource.
  • the STA of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the resource indication information is a physical layer signaling or a medium access control layer MAC frame.
  • the resource indication mode field is a first indication, and the first indication is used to indicate whether an explicit indication of the communication resource that needs to be used by the scheduled station or the site group is required in the current scheduling.
  • the resource indication mode field is a second indication, where the second indication is used to indicate whether all scheduled STAs or group of sites use the same data in the previous frame when transmitting the current frame data or Part of the same communication resource, or the resource indication mode field is a third indication, where the third indication is used to indicate whether all scheduled STAs or group of sites adopt the same frame data when transmitting the next frame data.
  • Communication resources that are identical or partially identical;
  • the processor 42 is specifically configured to:
  • the STA determines, according to the second indication, that all scheduled STAs or groups of stations use the same or partially identical communication resources in the previous frame when transmitting the current frame data, according to the previous frame transmitted.
  • the communication resource used in the data determines the communication resource to be used for transmitting the current frame data, and performs communication according to the determined communication resource that needs to be used for transmitting the frame data; or
  • the communication resource determines a communication resource to be used for transmitting the next frame of data, and performs communication according to the determined communication resource to be used for transmitting the next frame data.
  • the resource indication mode field is a fourth indication; the fourth indication is used to indicate one of the following or any combination thereof: the number of STAs or group groups that are explicitly indicated to indicate the communication resource, and the communication resource is indicated by default The number of STAs or group of stations, the STA or station that is explicitly indicating the communication resource The sum of the group of points and the number of STAs or group of stations that are indicated by default by the communication resource.
  • the processor 42 is specifically configured to:
  • the processor 42 is specifically configured to:
  • the number of the STA or the site group that is the default indicated communication resource is obtained according to the fourth indication and/or Or the number of STAs or groups of stations that are explicitly indicated to be communication resources;
  • the STA traverses the resource indication information that is received by the STA or the group of the group that explicitly indicates the communication resource according to the number of the STAs or the group of the group that explicitly indicates the communication resource, to determine the newly allocated communication resource;
  • the resource indication mode field is a fifth indication of X bits; wherein the X is a positive integer;
  • Each of the fifth indications is used to indicate whether the STA or the group of stations corresponding to the bit adopts the communication resources that are identical or partially identical to those in the previous frame when transmitting the current frame data.
  • the processor 42 is specifically configured to:
  • the STA or the group of sites is explicitly indicated Obtaining, by the STA or the group of the resource, the number of the STA or the group of the group that is explicitly indicated by the communication resource according to the fourth indication and the fifth indication;
  • the STA traverses the resource indication information received by all STAs or group groups explicitly indicating the communication resource according to the number of STAs or group groups that are explicitly indicated to the communication resource, to determine the communication used to transmit the current frame data. Resources.
  • the processor 42 is specifically configured to:
  • the STA determines that the STA or the site group is the STA or the site group that is indicated by the communication resource by default, the STA obtains the vacant according to the fourth indication and the fifth indication.
  • the STA traverses all STAs or group groups explicitly indicated by the communication resource according to the STA or group of stations that are indicated by default to the communication resource and/or the number of STAs or group groups that are explicitly indicated to the communication resource.
  • the resource indication information is used to determine the newly allocated communication resource;
  • the resource indication mode field is a sixth indication of the Z bit; the sixth indication is used to indicate that the STA area is indicated by default and the size of the STA area is explicitly indicated;
  • the STA or the group of stations adopts the communication resources that are identical or partially identical to those used in the previous frame when transmitting the current frame data, and the indicated STA indicates that at least one STA or group of stations in the STA area transmits the current frame data. Adopting a different communication resource than in the previous frame; the Z is a positive integer.
  • the resource indication mode field is a seventh indication of X bits; wherein the X is a positive integer;
  • Each bit in the seventh indication is used to indicate whether an area corresponding to the STA or the group to which the bit belongs is a default indicated STA area.
  • the processor 42 is specifically configured to:
  • the STA traverses all the resource indication information received by the explicitly indicated STA area according to the sixth indication and the number of STAs or group groups that are explicitly indicated to indicate the communication resource in the STA area, to Determine the communication resources used to transmit the current frame data.
  • the processor 42 is specifically configured to:
  • the STA acquires an arrangement position of the STA or the site group that is the default indication communication resource in the previous frame data, and according to the STA or the site group that is the default indication communication resource in the previous frame data.
  • the STA determines, according to the arrangement position, the newly allocated communication resource and the communication resource used for transmitting the previous frame data.
  • the resource indication mode field is an eighth indication of M bits; the eighth indication is used to indicate a transmission sequence of the current frame data; M is a positive integer;
  • the processor 42 is specifically configured to:
  • the STA determines, according to the resource indication information, a communication resource used for transmitting the next frame data.
  • the STA of this embodiment may be used to implement the technical solution of the resource indication method provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例涉及一种资源指示方法、装置和设备,该方法包括:AP生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。本发明实施例提供的资源指示方法、装置和设备减少了系统资源的浪费。

Description

资源指示方法、装置和设备 技术领域
本发明实施例涉及通信技术,特别涉及一种资源指示方法、装置和设备。
背景技术
随着802.11ac标准中下行MU-MIMO(Multi-User Multiple Input Multiple Output;简称:多用户多输入多输出)的引入,一个接入点(Access Point;简称:AP)可以利用不同的时空流同时向多个站点(Station;简称:STA)发送互相独立的数据。多用户传输会提高系统效率,但同时也需要为每个站点来提供各种参数及所占据资源的位置的指示。
现有技术中,通常按照逐个站点或者站点组进行资源的指示。表一为现有技术中单个站点的资源指示结构示意图,表二为现有技术中MU-MIMO站点组的资源指示结构示意图。
表一
Figure PCTCN2015078140-appb-000001
表二
Figure PCTCN2015078140-appb-000002
其中,对于站点的资源指示,如表一所示,部分关联标识(Partial Associate ID;简称:PAID)用于标识接收端,并承载关联标识的部分信息,下行/上行类型(Downlink/Uplink type;简称:DL/UL type)用于指示资源块属于下行帧还是上行帧,调制与编码策略(Modulation and Coding Scheme;简称:MCS)用于指示调制与编码策略,时空流数(Number of Space-Time Stream;简称:NSTS)用于指示使用的时空流个数,资源单元分配(Resource Unit Allocation,简称:RU alloc)和时间分配(Time allocation,简称:Time alloc)分别在频率上和时间上指示占据的资源块的位置指引,低密度奇偶校验码 (Low Density Parity Check;简称LDPC)用于指示是否使用LDPC编码方式;空时分组编码(Space Time Block Coding;简称:STBC)为用来指示是否采用STBC,循环冗余码(Cyclic Redundancy Code;简称:CRC)用来保存CRC校验比特;尾部比特(Tail)用来存放二进制循环卷积码(Binary Convolution Code;简称:BCC)的6个比特的尾部。对于MU-MIMO站点组的资源指示,如表二所示,组标识(Group ID;简称:GID)用来指示MU-MIMO站点组的标识;此外,对于站点组内的每个站点,要分别指示其MCS以及NSTS等参数。
另外,还可以采用按照逐个资源块进行资源指示的方式,其中包括站点或者站点组字段,用于指示该资源块是用于传输站点的数据还是用于传输站点组的数据;资源块的大小、站点标识(Stations ID;简称:STA ID)/GID用来指示单个站点或者站点组的标识。
然而,现有技术中,对单个站点进行资源指示时,需要占用60bit的空间,对站点组进行资源指示时,则需要占用84bit的空间,这样会使得信令开销较大,造成系统资源的浪费。
发明内容
本发明实施例提供一种资源指示方法、装置和设备,能够减少信令开销,节约系统资源。
第一方面,本发明实施例提供一种资源指示方法,包括:
接入点AP生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
结合第一方面,在第一方面的第一种可能的实现方式中,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
结合第一方面、第一方面的第一种可能的实现方式,在第一方面的第二 种可能的实现方式中,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
结合第一方面、第一方面的第一种至第一方面的第二种任一种可能的实现方式,在第一方面的第三种可能的实现方式中,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
结合第一方面的第三种可能的实现方式,在第一方面的第四种可能的实现方式中,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
结合第一方面的第四种可能的实现方式,在第一方面的第五种可能的实现方式中,所述资源指示方式字段为X比特的第五指示;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源;
其中,所述X为正整数。
结合第一方面的第四种可能的实现方式,在第一方面的第六种可能的实现方式中,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
结合第一方面的第六种可能的实现方式,在第一方面的第七种可能的实现方式中,所述资源指示方式字段为X比特的第七指示;
所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域;
其中,所述X为正整数。
结合第一方面、第一方面的第一种至第一方面的第七种任一种可能的实现方式,在第一方面的第八种可能的实现方式中,所述资源指示方式字段为M比特的第八指示;
所述第八指示用于指示本帧数据的传输序列;M为正整数。
第二方面,本发明实施例提供一种资源指示方法,包括:
站点STA接收接入点AP发送的资源指示信息;所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
所述STA根据所述资源指示信息通过所述指示的通信资源进行通信。
结合第二方面,在第二方面的第一种可能的实现方式中,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
结合第二方面、第二方面的第一种至第二方面的第二种任一种可能的实现方式,在第二方面的第三种可能的实现方式中,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源;
所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
所述STA在根据所述第二指示确定出所有被调度的STA或者站点组在传 输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,则根据传输上一帧数据时所采用的通信资源,确定传输本帧数据需要使用的通信资源,并根据确定出的所述传输本帧数据需要使用的通信资源进行通信;或者,
在根据所述第三指示确定出所有被调度的STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源,则根据传输本帧数据时所采用的通信资源,确定传输下一帧数据需要使用的通信资源,并根据确定出的所述传输下一帧数据需要使用的通信资源进行通信。
结合第二方面、第二方面的第一种至第二方面的第二种任一种可能的实现方式,在第二方面的第四种可能的实现方式中,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
结合第二方面的第四种可能的实现方式,在第二方面的第五种可能的实现方式中,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
若所述STA获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示获取所述被明示指示通信资源的STA或站点组的数量;
根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所采用的通信资源;
根据所述确定出的传输本帧数据所采用的通信资源进行通信。
结合第二方面的第四种可能的实现方式,在第二方面的第六种可能的实现方式中,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
若所述STA获知所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示,获取所述被缺省指示通信资源的STA或站点组的数量和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述被缺省指示通信资源的STA或站点组以及所述被明示指示通信资源的STA或站点组的数量,获得所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
结合第二方面的第四种可能的实现方式,在第二方面的第七种可能的实现方式中,所述资源指示方式字段为X比特的第五指示;其中,所述X为正整数;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
结合第二方面的第七种可能的实现方式,在第二方面的第八种可能的实现方式中,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
若所述STA根据所述第五指示,获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
结合第二方面的第七种可能的实现方式,在第二方面的第九种可能的实现方式中,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
若所述STA根据所述第五指示,确定所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被 缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述第四指示和所述第五指示,确定所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
结合第二方面的第四种可能的实现方式,在第二方面的第十种可能的实现方式中,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
结合第二方面的第十种可能的实现方式,在第二方面的第十一种可能的实现方式中,所述资源指示方式字段为X比特的第七指示;其中,所述X为正整数;
所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域。
结合第二方面的第十一种可能的实现方式,在第二方面的第十二种可能的实现方式中,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
若所述STA根据所述第七指示获知所述STA或站点组所属区域为被明示指示STA区域,则根据所述第四指示获得所述被明示指示STA区域中所述被明示指示通信资源的STA的数量;
所述STA根据所述第六指示和所述被明示指示STA区域中所述被明示指 示通信资源的STA或站点组的数量,遍历所有被明示指示STA区域接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
结合第二方面的第十一种可能的实现方式,在第二方面的第十三种可能的实现方式中,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
若所述STA根据所述第七指示,获知所述STA或站点组所属区域为被缺省指示STA区域,则根据所述第四指示,确定所述被缺省指示STA区域中被缺省指示通信资源的STA的数量;
所述STA获取在上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,并根据所述上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,以及所述被缺省指示STA区域中STA或站点组的数量,获得传输本帧数据时所述被缺省指示通信资源的STA或站点组在所述被缺省指示STA区域内的排列位置;
所述STA根据所述排列位置,确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
结合第二方面的第四种可能的实现方式,在第二方面的第十四种可能的实现方式中,所述资源指示方式字段为M比特的第八指示;所述第八指示用于指示本帧数据的传输序列;M为正整数;
所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
所述STA根据所述第八指示,判断所述本帧数据是否丢失;
若确定所述本帧数据丢失,则所述STA根据所述资源指示信息确定传输下一帧数据所使用的通信资源。
第三方面,本发明实施例提供一种接入点AP,包括:
处理单元,用于生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
收发单元,用于发送所述资源指示信息,以便于所述被调度的站点或者 站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
结合第三方面,在第三方面的第一种可能的实现方式中,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
结合第三方面、第三方面的第一种可能的实现方式,在第三方面的第二种可能的实现方式中,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
结合第三方面、第三方面的第一种至第三方面的第二种任一种可能的实现方式,在第三方面的第三种可能的实现方式中,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
结合第三方面的第三种可能的实现方式,在第三方面的第四种可能的实现方式中,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
结合第三方面的第四种可能的实现方式,在第三方面的第五种可能的实现方式中,所述资源指示方式字段为X比特的第五指示;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源;
其中,所述X为正整数。
结合第三方面的第四种可能的实现方式,在第三方面的第六种可能的实现方式中,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA 或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
结合第三方面的第六种可能的实现方式,在第三方面的第七种可能的实现方式中,所述资源指示方式字段为X比特的第七指示;
所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域;
其中,所述X为正整数。
结合第三方面、第三方面的第一种至第三方面的第七种任一种可能的实现方式,在第三方面的第八种可能的实现方式中,所述资源指示方式字段为M比特的第八指示;
所述第八指示用于指示本帧数据的传输序列;M为正整数。
第四方面,本发明实施例提供一种站点STA,包括:
收发单元,用于接收接入点AP发送的资源指示信息;所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
处理单元,用于根据所述资源指示信息通过所述指示的通信资源进行通信。
结合第四方面,在第四方面的第一种可能的实现方式中,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
结合第四方面或第四方面的第一种可能的实现方式,在第四方面的第二种可能的实现方式中,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
结合第四方面、第四方面的第一种至第四方面的第二种任一种可能的实现方式,在第四方面的第三种可能的实现方式中,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的 STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源;
所述处理单元具体用于:
所述STA在根据所述第二指示确定出所有被调度的STA或者站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,则根据传输上一帧数据时所采用的通信资源,确定传输本帧数据需要使用的通信资源,并根据确定出的所述传输本帧数据需要使用的通信资源进行通信;或者,
在根据所述第三指示确定出所有被调度的STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源,则根据传输本帧数据时所采用的通信资源,确定传输下一帧数据需要使用的通信资源,并根据确定出的所述传输下一帧数据需要使用的通信资源进行通信。
结合第四方面、第四方面的第一种至第四方面的第二种可能的实现方式,在第四方面的第四种可能的实现方式中,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
结合第四方面的第四种可能的实现方式,在第四方面的第五种可能的实现方式中,所述处理单元具体用于:
若所述STA获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示获取所述被明示指示通信资源的STA或站点组的数量;
根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所采用的通信资源;
根据所述确定出的传输本帧数据所采用的通信资源进行通信。
结合第四方面的第四种可能的实现方式,在第四方面的第六种可能的实现方式中,若所述STA获知所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示,获取所述被缺省指示通信资源的STA或站 点组的数量和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述被缺省指示通信资源的STA或站点组以及所述被明示指示通信资源的STA或站点组的数量,获得所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
结合第四方面的第四种可能的实现方式,在第四方面的第七种可能的实现方式中,所述资源指示方式字段为X比特的第五指示;其中,所述X为正整数;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
结合第四方面的第七种可能的实现方式,在第四方面的第八种可能的实现方式中,所述处理单元具体用于:
若所述STA根据所述第五指示,获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
结合第四方面的第七种可能的实现方式,在第四方面的第九种可能的实现方式中,所述处理单元具体用于:
若所述STA根据所述第五指示,确定所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或 站点组的数量;
所述STA根据所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述第四指示和所述第五指示,确定所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
结合第四方面的第四种可能的实现方式,在第四方面的第十种可能的实现方式中,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
结合第四方面的第十种可能的实现方式,在第四方面的第十一种可能的实现方式中,所述资源指示方式字段为X比特的第七指示;其中,所述X为正整数;
所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域。
结合第四方面的第十一种可能的实现方式,在第四方面的第十二种可能的实现方式中,所述处理单元具体用于:
若所述STA根据所述第七指示获知所述STA或站点组所属区域为被明示指示STA区域,则根据所述第四指示获得所述被明示指示STA区域中所述被明示指示通信资源的STA的数量;
所述STA根据所述第六指示和所述被明示指示STA区域中所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示STA区域接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
结合第四方面的第十一种可能的实现方式,在第四方面的第十三种可能的实现方式中,所述处理单元具体用于:
若所述STA根据所述第七指示,获知所述STA或站点组所属区域为被缺省指示STA区域,则根据所述第四指示,确定所述被缺省指示STA区域中被缺省指示通信资源的STA的数量;
所述STA获取在上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,并根据所述上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,以及所述被缺省指示STA区域中STA或站点组的数量,获得传输本帧数据时所述被缺省指示通信资源的STA或站点组在所述被缺省指示STA区域内的排列位置;
所述STA根据所述排列位置,确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
结合第四方面的第四种可能的实现方式,在第四方面的第十四种可能的实现方式中,所述资源指示方式字段为M比特的第八指示;所述第八指示用于指示本帧数据的传输序列;M为正整数;
所述处理单元具体用于:
所述STA根据所述第八指示,判断所述本帧数据是否丢失;
若确定所述本帧数据丢失,则所述STA根据所述资源指示信息确定传输下一帧数据所使用的通信资源。
本发明实施例提供的资源指示方法、装置和设备,AP生成资源指示信息,资源指示信息用于指示被调度的站点或者站点组,以及,被调度的站点或者站点组需要使用的通信资源,资源指示信息中包含资源指示方式字段;资源指示方式字段包含:针对被调度的站点或者站点组的每一个,明示的指示需要使用的通信资源,或者,缺省的指示需要使用的通信资源,发送资源指示信息,以便于被调度的站点或者站点组根据资源指示信息通过指示的通信资源进行通信,避免了现有技术中每一次进行资源指示时,资源指示信息中都需要包含完整的通信资源的现象,有效地降低了资源指示信息的开销,减少了系统资源的浪费。
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为本发明提供的资源指示方法的系统结构示意图;
图2为本发明一实施例的资源指示方法的流程示意图;
图3a为资源指示信息的结构示意图一;
图3b为资源指示信息的结构示意图二;
图3c为第十指示的结构示意图一;
图4为资源位置信息指示示意图;
图5为第十指示的结构示意图二;
图6为第五指示的结构示意图;
图7为对被缺省指示通信资源的STA或站点组进行资源位置信息指示的示意图;
图8为第七指示的结构示意图;
图9为对被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组进行资源指示的示意图;
图10为某个STA或站点组没有正确接收数据时在下一帧的资源指示信息中第七指示的处理规则示意图;
图11为本发明资源指示装置实施例一的结构示意图;
图12为本发明资源指示装置实施例二的结构示意图;
图13为本发明提供的AP实施例一的结构示意图;
图14为本发明提供的STA实施例一的结构示意图。
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、完整地描述,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做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。
图1为本发明提供的资源指示方法的系统结构示意图,如图1所示,在 该系统结构中,STA 12通常指的是各种终端设备,例如可以是pad、上网本、手机等。AP 11将各个STA 12连接到一起,AP11通过向STA12发送包含资源指示信息的数据帧,使STA12根据该资源指示信息确定传输数据的目的站点,所传输数据的位置及传输参数,以进行数据的传输。通常,一台AP下面要接入多台STA,因此,在AP同时对多台STA进行资源指示时,如何降低信令的开销,减少系统资源的浪费,是一个非常重要的问题。
图2为本发明一实施例的资源指示方法的流程示意图,本实施例的执行主体可以是AP,也可以是具有AP功能的其他设备。在上述图1所示系统结构的基础上,如图2所示,本实施例的方法可以包括:
步骤201、接入点AP生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源。
在本实施例中,明示的指示需要使用的通信资源是指AP将完整的指示出被调度的站点或者站点组需要使用的通信资源;而缺省的指示需要使用的通信资源是指AP不需要完整的指示出被调度的站点或者站点组需要使用的通信资源,被调度的站点或者站点组可以根据上一帧中其所使用的通信资源,确定传输本帧数据需要使用的通信资源,或者根据传输本帧数据时其所使用的通信资源,确定传输下一帧数据时需要使用的通信资源。当STA或者站点组在传输本帧数据时采用与在上一帧中采用完全相同或者部分相同的通信资源,或者在传输下一帧数据时采用与在本帧中采用完全相同或者部分相同的通信资源时,可以采用缺省的方式进行通信资源的指示,反之,则采用明示的方式进行通信资源的指示。其中,通信资源包括站点标识信息、资源位置信息和资源参数信息。
步骤202、发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
具体的,可以有多种具体的资源指示方式字段,下面详细说明之:
实施例一
在本实施例中,参考图3a、3b,图3a为资源指示信息的结构示意图一,图3b为资源指示信息的结构示意图二,AP在信令字段(Signal Field;简称SIG)B或者trigger frame中,可以采用1比特的第一指示,第一指示例如可以为压缩模式指示字段,其用来指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源,也就是说,用于指示本次调度中进行资源指示时,是否需要指示完整的通信资源,例如针对每一个被调度的STA或者站点组,是否均需要指示出站点标识信息、资源位置信息和资源参数信息。例如:将第一指示置0,则针对每一个被调度的STA或者站点组,均需要指示出完整的通信资源,若将第一指示置1,则采用不完整的通信资源进行资源指示,例如可以指示出通信资源中的站点标识信息、资源位置信息和资源参数信息中的至少一个。当然,也可以在第一指示为1时,指示完整的通信资源,第一指示为0时,采用不完整的通信资源进行资源指示,本发明对此不作特别限制。
其中,站点标识信息用于标识STA或站点组;资源位置信息用于指示在频率上和/或在时间上占据的资源块的指引,例如:用于指示以下参数中的至少一个:资源块的起始位置、资源块的大小、MU MIMO传输时所占据时空流的指引等;资源参数信息包括以下之一或其任意组合:数据传输的调制与编码策略MCS、低密度奇偶校验码LDPC、空时分组编码STBC等。
参考图3a、3b,资源指示方式字段可以为第二指示和/或第三指示;第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
具体地,在传输本帧数据时采用与在上一帧中采用完全相同或者部分相同的通信资源的STA或站点组的类型包括以下三种:(1)传输本帧数据时所使用资源的资源位置信息与传输上一帧数据时所使用资源的资源位置信息相同的STA或者站点组;(2)传输本帧数据时所使用资源的资源参数信息与传输上一帧数据时所使用资源的资源参数信息相同的STA或站点组;(3)传输本帧数据时所使用资源的资源位置信息和资源参数信息均与传输上一帧数据时所使用资源的资源位置信息和资源参数信息相同的STA或者站点组。
需要进行说明的是,对于第一种类型,在对STA或者站点组进行资源指示时只需要指示资源参数信息即可,对于第二种类型,在对STA或者站点组进行资源指示时只需要指示资源位置信息即可,而对于第三种类型,则不需要对STA或者站点组进行资源指示。
在资源指示信息中设置第二指示,以指示传输本帧数据时所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中所采用的完全相同或者部分相同的通信资源,或者第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中所采用的完全相同或者部分相同的通信资源。需要进行说明的是,若所有STA或者站点组在传输本帧数据时采用的通信资源均与传输上一帧数据时采用的通信资源完全相同时,则不对站点或者站点组进行资源指示;若所有STA或者站点组在传输本帧数据时采用的通信资源与传输上一帧数据时采用的通信资源部分相同时,则根据上一帧中被缺省指示通信资源的STA或者站点组的排列顺序,进行逐个站点或者站点组的资源指示,以确定站点或者站点组在传输本帧数据所使用的通信资源。对于所有STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源时的情况,与所有STA或者站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源时类似,此处不再赘述。
举例来讲,在802.11ax中引入了上行多用户传输,可以通过触发帧向多个用户同时索取信道探测信息,然后通过多个触发帧,向同一批用户多次索取信道探测信息,因此在这种场景,所有用户均为被缺省指示通信资源的STA或者站点组,故可以通过第二指示来指示本次传输与上一次传输采用完全相同或部分相同的通信资源。例如:AP向所有STA或站点组广播空数据分组声明和空数据分组触发帧之后,各STA或站点组会同时向AP反馈多用户信道状态信息,此时,AP会将第二指示的值置为1,并向各STA或站点组发送携带有第二指示的波束成形报告轮询触发帧,各STA或站点组接收到携带有第二指示的波束成形报告轮询触发帧之后,即可获知此时所有的STA或站点组均为被缺省指示通信资源的STA或者站点组。
进一步地,对于包含资源指示信息的触发帧,可能会存在多种类型,如:索取信道探测信息的触发帧,索取节能轮询帧的触发帧,索取确认信息的触 发帧等,因此,本实施例中还可以通过将第二指示与触发帧的类型相结合来指示所有的STA或站点组是否均为被缺省指示通信资源的STA或者站点组,具体地,若STA或站点组接收到某种类型的触发帧,则可默认第二指示为1,也即指示所有的STA或站点组均为被缺省指示通信资源的STA或者站点组。例如,若STA或站点组接收到波束成型报告轮询类型的触发帧,则可默认该触发帧中携带有第二指示,而且该第二指示的值为1,即所有STA或站点组在传输本帧数据时采用与上一帧采用的完全相同或部分相同的通信资源。值得注意的是,也可以将第二指示与其他类型的触发帧相结合,对于触发帧的具体类型,本发明对此不作限制。第三指示的指示方式与第二指示类似,此处不再赘述。
需要说明的是,资源指示信息中可以同时包含上述第一指示、第二指示和第三指示,也可以只包含其中的一种。
本发明实施例提供的资源指示方法,通过在资源指示信息中设置第二指示和/或第三指示,当确定所有STA或者站点组均为被缺省指示通信资源的STA或者站点组时,可以直接通过传输上一帧或本帧数据所使用的通信资源,确定出传输本帧或下一帧数据所使用的通信资源,由此避免了现有技术中每一次进行资源指示时,资源指示信息中都需要明示的指示被调度的STA或者站点组需要使用的通信资源的现象,从而有效地降低了资源指示信息的开销,减少了系统资源的浪费。
实施例二
参考图3c,或者图5,图3c为第十指示的结构示意图一,图5为第十指示的结构示意图二,在一个可选的实施方式中,资源指示信息为物理层信令或者媒体接入控制层(Medium Access Control;简称:MAC)帧;该资源指示信息或该MAC帧包括第九指示或第十指示,第九指示例如可以为资源重用比特,第十指示例如可以为资源重用位图,该第九指示或第十指示中的每一位比特用于指示该比特相对应的STA或者站点组在传输下一帧数据时是否采用与在本帧中采用完全相同或者部分相同的通信资源。
具体地,第九指示或第十指示可以存储在资源指示信息中,也可以存储在MAC帧中,以指示STA或者站点组在传输下一帧数据时是否采用与在本 帧中采用完全相同或者部分相同的通信资源,以起到提前通知STA或者站点组的作用。在实际应用中,当第九指示或第十指示存储在资源指示信息中时,对于第九指示的指示方式,可以通过对每个STA或者站点组进行资源指示时,在资源指示信息中添加一个新的比特位,用于指示该STA或者站点组在传输下一帧数据时是否采用与在本帧中采用完全相同或者部分相同的通信资源;对于第十指示的指示方式,可以通过集中采用一个N位的第十指示来对所有的STA或者站点组中的每一个STA或者站点组进行指示,其中,N为正整数。STA或者站点组通过对第九指示或第十指示进行解析,即可提前获知自身在传输下一帧数据时是否采用与在本帧中采用完全相同或者部分相同的通信资源。例如:如图3c所示,若第十指示为1110100,则说明STA1、STA2、STA5和STA6在传输下一帧数据时采用的通信资源与本帧中所采用的通信资源不同,而站点组(Multi-User Group;简称:MUG)1、STA3和STA8在传输下一帧数据时采用与在本帧中采用完全相同或者部分相同的通信资源。当第九指示或第十指示存储在MAC帧中时,可以采用某个STA或站点组数据的MAC帧帧头中的一个比特来指示该STA或站点组在传输下一帧数据时是否为被缺省指示通信资源的STA或站点组,也可以通过在某个STA或站点组数据的MAC帧中,采用一个N位的第十指示来指示该STA或站点组在传输下一帧数据时是否采用与在本帧中采用完全相同或者部分相同的通信资源,以起到提前通知STA或站点组的作用。
参考图4,图4为资源位置信息指示示意图,在又一个可选的实施方式中,资源指示方式字段为第四指示;该第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,被明示指示通信资源的STA或站点组以及被缺省指示通信资源的STA或站点组的数量之和。
在本实施例中,假设某个STA或站点组的资源位置信息不需要依赖于其他站点或站点组的资源位置信息,即每个STA或站点组的资源位置信息均相互独立,也就是说,对于某个STA或站点组,已明确指示出其所使用的资源块的起始位置和资源块的大小时,AP在对其进行资源位置信息的指引时,并不依赖于其他STA或站点组的资源位置信息。例如,如图4所示,对于由 STA5、STA6、STA7和STA8组成的MU-MIMO站点组,已明确指示其所使用的资源块的起始位置为5,资源块大小为4,则AP在对其进行资源位置信息的指引时,不需要依赖于其他STA或站点组的资源位置信息。在这种情况下,在每一次进行资源指示时,需要先统计被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量。需要进行说明的是,若需要对被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组进行资源指示时,则需要统计被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组的数量,若只需要对被明示指示通信资源的STA或站点组进行资源指示时,则仅统计被明示指示通信资源的STA或站点组的数量即可。
进一步地,STA或站点组根据上一帧数据中携带的第九指示或第十指示,会获知自身在传输本帧数据时为被缺省指示通信资源的STA或站点组,即在传输本帧数据时采用与在上一帧中采用完全相同或者部分相同的通信资源,则STA或站点组在得到被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量之后,会先遍历所有的被明示指示通信资源的STA或站点组接收到的资源指示信息,以获取本次新分配的通信资源。遍历完成之后,再结合上一帧的第九指示或第十指示,获得其在所有STA或站点组中的位置信息,例如:其在所有的STA或站点组中的排列顺序,以根据该排列顺序确定传输上一帧数据所使用的通信资源。具体地,AP会将STA或站点组进行排序,在实际应用中,首先排列被明示指示通信资源的STA或站点组,将被缺省指示通信资源的STA或站点组排列在被明示指示通信资源的STA或站点组的后面,而对于被缺省指示通信资源的STA或站点组的相对顺序,则按照上一帧中指示的顺序进行排列。例如,如图5所示,对于第二帧数据来说,假设MUG3、STA4、STA11为被明示指示通信资源的STA或站点组,而STA1、STA2、STA5和STA6为上一帧中指示的被缺省指示通信资源的STA,其中4个被缺省指示通信资源的STA的顺序则按照上一帧中的相对顺序进行排序,则在进行资源指示时,会先进行3个被明示指示通信资源的STA或站点组的资源指示,再进行4个被缺省指示通信资源的STA的资源指示。当被缺省指示通信资源的STA知道其在所有STA中的排列位置之后,即可获知哪一个资源指示信息是指向自己的,由此可确定出传输上一帧数据 时其所使用的通信资源。由此可见,每次STA或站点组在读取第九指示或第十指示时,都需要保存自身在所有站点或站点组中的排列位置。
如果STA或站点组获知自身为被明示指示通信资源的STA或站点组,在获取到被明示指示通信资源的STA或站点组的数量之后,会遍历所有被明示指示通信资源的STA或站点组接收到的资源指示信息,以在所有的资源指示信息中搜寻其自身的站点标识信息,以确定是否有数据传给自己,若有,则根据资源指示信息确定出传输本帧数据需要使用的通信资源。
本发明实施例提供的资源指示方法,通过第四指示获知被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量,并根据被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量以及上一帧数据中携带的第九指示或第十指示获知在传输本帧数据时STA或站点为被缺省指示通信资源的STA或站点组还是被明示指示通信资源的STA或站点组,由此可以分别指示被调度的STA或者站点组需要使用的通信资源,避免了现有技术中每一次进行资源指示时,资源指示信息中都需要包含完整的通信资源的现象,有效地降低了资源指示信息的开销,减少了系统资源的浪费。
需要进行说明的是,对于被缺省指示通信资源的STA或站点组的资源指示,除了采取现有技术中的指示,也可以采取增量指示。例如对于MCS,前后两次的信道不会发生明显的变化,即使变化了,MCS也不会变很多,因此利用2比特指示MCS的变化量即可,而不需要利用3比特进行完整的指示。也可以采取几种相对固定的模式,比如00代表信道质量更好,采取速率更好的资源参数;01代表信道质量不变,无需更改资源参数;10代表信道质量变差,采取速率更差的资源参数。对于某一个格式具体的资源参数指示,本发明方案不作具体限制。
实施例三
可替换的,参考图6,图6为第五指示的结构示意图,在又一个可选的实施方式中,资源指示方式字段为X比特的第五指示;该第五指示中的每一个比特分别用于指示所述比特对应的STA或者站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或部分相同的通信资源。
在本实施例中,假设某个STA或站点组的资源位置信息不需要依赖于其他站点或站点组的资源位置信息,即每个STA或站点组的资源位置信息均相互独立。在这种情况下,在每一次进行资源指示时,需要先统计被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量。在具体的实现过程中,除利用第四指示获得被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量之外,还可以通过第四指示获得被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组的数量之和,再结合第五指示来获得被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量。例如:如图6所示,首先通过第四指示可以获知共有7个STA和站点组,而且第五指示为1101011,则说明在传输本帧数据时STA1、STA2、MUG1、STA 3和STA8为被明示指示通信资源的STA或站点组,而STA5和STA6为传输本帧数据时被缺省指示通信资源的STA,进而可以得知在传输本帧数据时被明示指示通信资源的STA或站点组的数量为5,被缺省指示通信资源的STA的数量为2。
进一步地,资源指示信息可以同时包含图5所示的第十指示,和图6所示的第五指示。这时,STA或站点组根据上一帧的第十指示,获知其自身为被缺省指示通信资源的STA或站点组时,再通过第四指示获知被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组的数量之和,然后结合本帧的第五指示,获得该STA或站点组在传输本帧数据时在所有STA或站点组中的位置信息,当被缺省指示通信资源的STA或站点组知道其在所有STA或站点组中的排列位置之后,即可获知哪一个资源指示信息是指向自己的,由此即可确定出传输上一帧数据时其所使用的通信资源。
如果STA或者站点组根据上一帧的第十指示,获知其自身为被明示指示通信资源的STA或站点组时,可以通过第四指示获知被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组的数量之和,然后结合本帧的第五指示,遍历所有被明示指示通信资源的STA或站点组接收到的资源指示信息,以在所有的资源指示信息中搜寻自身的站点标识信息,以确定是否有数据传给自己,若有,则根据资源指示信息确定出传输本帧数据所需要的通信资源。
实施例四
假设每个STA或站点组的资源位置信息需要依赖于其他STA或站点组的资源位置信息,即AP在对某一个STA或站点组进行资源位置信息的指引时,为了节省开销,只给出其所使用的资源块的大小,而不给出资源块的起始位置,此时,该STA或站点组需要对排在它前边的所有STA或站点组的资源块大小进行累加,从而得知其所在资源块位置的起始值。继续参考图4,如果只指示资源块的大小,则对于STA4来讲,其通过对STA1、STA2和STA3的资源块大小进行累加,得到资源块的起始位置0+1+2+1=4,然后结合其本身资源块的大小信息,从而得知其在频率上的资源位置信息。对于这种情形,由于被明示指示通信资源的STA或站点组需要依赖于被缺省指示通信资源的STA或站点组的资源位置信息,因此,在进行资源指示时,需要对被缺省指示通信资源的STA或站点组的资源位置信息进行指示,这样,对于被明示指示通信资源的STA或站点组,便可以通过被缺省指示通信资源的STA或站点组的资源位置信息计算出自身所占资源块的位置信息。
参考图7,图7为对被缺省指示通信资源的STA或站点组进行资源位置信息指示的示意图,图7与图5或者图6所示实施方式不同的是,在图7所示的帧中,还包含被缺省指示通信资源的STA或站点组的资源位置信息的指示。具体地,对于被缺省指示通信资源的STA或站点组来说,其可以通过对资源位置信息的计算,判断出某个资源指示信息是否是来指示自己的。例如,若某个被缺省指示通信资源的STA或站点组在传输上一帧数据时所占用的资源块的起始位置为3,资源块的大小为4,当在传输本帧数据时,其根据资源指示信息获知某个被缺省指示通信资源的STA或站点组的资源位置信息中资源块的起始位置为3,资源块的大小为4,与其自身在传输上一帧数据时所占用的资源块的起始位置与资源块大小均相同,则该被缺省指示通信资源的STA或站点组即可得知该被缺省指示通信资源的STA或站点组为自己,由此可以判断出该资源指示信息是用来指示自己的。
另外,该被缺省指示通信资源的STA或站点组也可以通过结合第九指示或第十指示来确定资源位置信息,在实际应用中,被缺省指示通信资源的STA或站点组可以结合上一帧数据中携带的第九指示或第十指示,确定其在第十 指示中的位置,由此获知自身在传输本帧数据时是第几个被缺省指示通信资源的STA或站点组,以此确定资源位置信息。举例来说,如图7所示,在第一帧数据中,第十指示为1110100,则对于STA6来说,其得知在传输下一帧数据时一共会有4个被缺省指示通信资源的STA或站点组,而它排在最后一个。而在第二帧数据中,第五指示为1110010,STA6会知道代表它的是第四个“1”,其排在所有站点的第6个,此时,其可根据该位置得知哪个资源指示信息是用来指示自己的,以确定出传输数据所使用的资源。
需要进行说明的是,也可以采用比特的方式来实现第五指示的功能,即采用逐个比特对每个STA或站点组进行指示,以指示比特对应的STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
前述图3c-图7所示的资源指示方法,通过所有STA或者站点组的总数量及第五指示可获知被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量,并根据被缺省指示通信资源的STA或站点组和/或被明示指示通信资源的STA或站点组的数量以及上一帧数据中携带的第十指示或者上一帧和本帧的位置信息是否相同获知在传输本帧数据时STA或站点组的类型,由此可以分别指示STA或者站点组需要使用的通信资源,避免了现有技术中每一次进行资源指示时,资源指示信息中都需要包含完整的通信资源的现象,有效地降低了资源指示信息的开销,减少了系统资源的浪费。
实施例五
参考图3b,在又一个可选的实施方式中,资源指示方式字段为Z比特的第六指示;该第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小,例如该区域包含的最小资源块的数量。被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;Z为正整数。
另外,资源指示方式字段为X比特的第七指示,该第七指示中每个比特 用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域。
具体地,在本实施例中,假设每个STA或站点组的资源位置信息均需要依赖于其他STA或站点组的资源位置信息,对于这种情形,由于被明示指示通信资源的STA或站点组需要依赖于被缺省指示通信资源的STA或站点组的资源位置信息,因此,在进行资源指示时,不能任意省略对被缺省指示通信资源的STA或站点组的资源位置信息的指示。对于这个问题,本发明中可以采用将带宽进行划分的方式来指示被缺省指示STA区域和被明示指示STA区域,在具体的实现过程中,可以将整个带宽按照预设模式划分为若干个部分,每一个部分均为一个区域。例如:若整个带宽为80M,需要平均分配成4个部分,以形成4个区域,则每个区域为20M。另外,也可以采用其他方式进行划分,比如上述4个区域,可以再对其中某一个20M的区域按照资源单元分成9个子部分,其中,资源单元为最小资源块,则可以将该20M内每3个资源单元当作一个区域,这样总共有3+1+1+1=6个区域。对于区域的划分方式,可以根据实际情况进行选取,而对于每个区域的大小,可以在传输每一帧数据时进行指示,也可以采取预置的规则进行设计,本发明对区域的具体的划分方式和指示方式不做限制。
将带宽进行划分之后,在进行资源指示时,采用第七指示来指示哪些区域内的所有STA或站点组均为被缺省指示通信资源的STA或站点组,哪些区域内至少有一个被明示指示通信资源的STA或站点组。举例来讲,图8为第七指示的结构示意图,如图8所示,假设整个带宽为20M,根据预设模式将带宽划分为3个区域,若以1代表某个区域内至少存在一个被明示指示通信资源的STA或站点组,以0代表某个区域内的STA或站点组均为被缺省指示通信资源的STA或站点组,因此,第一个下行帧的指示为111,则说明3个区域内均至少存在一个被明示指示通信资源的STA或站点组,而第二个下行帧的指示位100,说明第一个区域内存在至少一个被明示指示通信资源的STA或站点组,而第二个区域和第三个区域内的STA或站点组则均为被缺省指示通信资源的STA或站点组。值得注意的是,这里的1和0是相对值,也可以1代表该区域内的STA或站点组均为被缺省指示通信资源的STA或站点组,以0代表该区域内至少存在一个被明示指示通信资源的STA或站点组。值得 注意的是,此时的被缺省指示通信资源的STA或站点组为传输本帧数据时所使用资源的资源位置信息与传输上一帧数据时所使用资源的资源位置信息相同的STA或站点组。
当STA或站点组根据第七指示确定出在传输本帧数据时该STA或站点组所属区域为被缺省指示STA区域时,需要根据第四指示获知在每个区域内所包含的被缺省指示通信资源的STA或站点组的数量,由于被缺省指示STA区域内的所有STA或站点组都属于被缺省指示通信资源的STA或站点组,因此,STA根据每个区域内所包含的STA或站点组的数量以及上一帧中其所在被缺省指示STA区域内的排列顺序,即可获知该STA或站点组在传输本帧数据时自身在被缺省指示STA区域内的位置信息,由此可判断出哪一个资源指示信息是指向自己的,以确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
当STA或站点组在根据第七指示获知在传输本帧数据时该STA或站点组所属区域为被明示指示STA区域时,则会根据被明示指示STA区域的大小,遍历所有被明示指示STA区域接收到的资源指示信息,在资源指示信息所包含的标识信息中搜寻自身的站点标识信息,以确定是否有数据传给自己,若有,则根据资源指示信息确定传输本帧数据所需要的通信资源。
需要进行说明的是,对于某一个站点或站点组,若其使用的部分通信资源与传输上一帧数据所使用的通信资源相同,而部分通信资源是本次新分配的,此时,该STA或站点组可能既在被缺省指示STA区域内,又在被明示指示STA区域内。在这种情况下,该站点或站点组首先需要在被明示指示站点区域内读取新的资源指示信息,同时还需要在被缺省指示站点区域内结合上一帧的通信资源读取重用部分的资源指示信息。
另外,在进行资源指示时,AP针对第七指示指示为0的区域和指示为1的区域分别指示。在实际应用中,可将所有指示的被明示指示STA区域联合在一起进行资源指示,因为每个站点或站点组清楚的知道每个区域资源块位置的起始值,因此即使缺失了被缺省指示站点区域内站点的位置信息,每个STA或站点组依然可以知道自己所在的资源位置。例如,图9为对被缺省指示通信资源的STA或站点组和被明示指示通信资源的STA或站点组进行资源指示的示意图,如图9所示,对于下行帧2的资源指示,当第七指示为101 时,说明区域1和区域3为被明示指示STA区域,区域2为被缺省指示STA区域。则首先对区域1和区域3内的站点进行资源指示,这样,当整个带宽内存在被缺省指示通信资源的STA或站点组,而且在被缺省指示通信资源的STA或站点组的资源块大小等资源位置信息缺失时,即使仅指示每个站点或站点组的资源块大小,对于被明示指示通信资源的STA或站点组来说,其依然可以知道自己的资源块位置。举例来讲,对于STA9,当其对排在它前边的被明示指示通信资源的STA4、STA2、STA7所占资源块大小的累加(1+1+1=3)后,会发现第一个区域已经排完,因此当其在第四个位置发现自己的站点标识时,会得知AP将在第三个区域继续进行资源分配,所以STA9会知道自己的起始位置为6,而不是按照连续排列时的3,而对于其后的站点或站点组,也会在6的基础上继续累加排在其前边站点的资源块大小,从而得知自己资源块的起始位置。
需要进行说明的是,也可以采用比特的方式来实现第七指示的功能,即采用逐个比特对每个STA所属的区域进行指示。
本发明实施例提供的资源指示方法,通过第六指示和第七指示区分在传输本帧数据时STA所属是否为被缺省指示STA区域,由此分别指示STA或者站点组需要使用的通信资源,避免了现有技术中每一次进行资源指示时,资源指示信息中都需要包含完整的通信资源的现象,有效地降低了资源指示信息的开销,减少了系统资源的浪费。
进一步地,在上述实施例的基础上,当AP没有接收到某个区域内的某个STA或站点组发送的确认消息或块确认消息时,即AP发现该STA或站点组错过了某一个帧时,则对于该STA或站点组所在的区域来说,即使在下一帧时将会成为被缺省指示STA区域,也要将该区域指示为被明示指示STA区域,因为AP无法保证该STA或站点组在当前帧正确接收了资源指示信息。举例来讲,图10为某个STA或站点组没有正确接收数据时在下一帧的资源指示信息中第七指示的处理规则示意图,如图10所示,对于下行帧2的STA3,在进行下行帧2的传输时,若AP没有收到STA3的确认信息,因此在进行下行帧3的传输时,即使区域2为被缺省指示STA区域,也指示区域2为被明示指示STA区域,对区域2的站点重新进行资源指示。
实施例六
在又一个可选的实施方式中,资源指示方式字段为M比特的第八指示;该第八指示用于指示本帧数据的传输序列;M为正整数。
具体地,在资源指示信息中还可以增加2比特或者3比特的第八指示,以指示本次数据帧的传输序列,以防止STA或者站点组将数据帧漏传。例如:假设第一帧数据的第八指示为00、第二帧为01、第三帧为10,第四帧为11,若某个STA或站点组在传输第一帧数据时,根据第十指示得知其在传输第二帧数据时为被缺省指示通信资源的STA或站点组,但是由于碰撞等原因,该STA或站点组根据第八指示发现其没有收到第二帧数据,而收到的是第三帧数据或第四帧数据时,会发现自己错过了第二帧数据,因此不再认定自己是被缺省指示通信资源的STA或站点组。值得注意的是,若第八指示只有2比特,则对于第五帧数据,则重新利用00进行指引。需要进行说明的是,由于上行及下行的业务普遍不同,因此可以针对上行帧和下行帧分别进行指引,当然,也可以在一起进行指引,对于第八指示的具体指引方式,本发明在此不作特别限制。
本发明实施例提供的资源指示方法,通过在资源指示信息中设置第八指示,以指示本次数据帧的传输序列,避免出现数据帧的漏传现象,提高了系统的可靠性。
图11为本发明资源指示装置实施例一的结构示意图。如图11所示,本发明实施例提供的资源指示装置包括处理单元11和收发单元12。
其中,处理单元11用于生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;;
收发单元12用于发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
本发明实施例提供的资源指示装置,AP生成资源指示信息,该资源指示信息用于指示被调度的站点或者站点组,以及,被调度的站点或者站点组需要使用的通信资源,资源指示信息中包含资源指示方式字段;资源指示方式 字段包含:针对被调度的站点或者站点组的每一个,明示的指示需要使用的通信资源,或者,缺省的指示需要使用的通信资源,发送资源指示信息,以便于被调度的站点或者站点组根据资源指示信息通过指示的通信资源进行通信,避免了现有技术中每一次进行资源指示时,资源指示信息中都需要包含完整的通信资源的现象,有效地降低了资源指示信息的开销,减少了系统资源的浪费。
可选地,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
可选地,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
可选地,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
可选地,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
可选地,所述资源指示方式字段为X比特的第五指示;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源;
其中,所述X为正整数。
可选地,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
可选地,所述资源指示方式字段为X比特的第七指示;
所述第七指示中每个比特用于指示所述比特对应的所属区域是否为被缺省指示STA区域;
其中,所述X为正整数。
可选地,所述资源指示方式字段为M比特的第八指示;
所述第八指示用于指示本帧数据的传输序列;M为正整数。
本实施例的资源指示装置,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
图12为本发明资源指示装置实施例二的结构示意图。如图12所示,本发明实施例提供的资源指示装置包括收发单元21和处理单元22。
其中,收发单元21用于接收接入点AP发送的资源指示信息;所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;处理单元22用于根据所述资源指示信息通过所述指示的通信资源进行通信。
本发明实施例提供的资源指示装置,STA通过接收接入点AP发送的资源指示信息;资源指示信息用于指示被调度的站点或者站点组,以及,被调度的站点或者站点组需要使用的通信资源,资源指示信息中包含资源指示方式字段;资源指示方式字段包含:针对被调度的站点或者站点组的每一个,明示的指示需要使用的通信资源,或者,缺省的指示需要使用的通信资源;根据资源指示信息通过指示的通信资源进行通信,由此避免了现有技术中每一次进行资源指示时,资源指示信息中都需要包含完整的通信资源的现象,有效地降低了资源指示信息的开销,减少了系统资源的浪费。
可选地,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
可选地,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
可选地,所述资源指示方式字段为第二指示;所述第二指示用于指示所 有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源;
所述处理单元具体用于:
所述STA在根据所述第二指示确定出所有被调度的STA或者站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,则根据传输上一帧数据时所采用的通信资源,确定传输本帧数据需要使用的通信资源,并根据确定出的所述传输本帧数据需要使用的通信资源进行通信;或者,
在根据所述第三指示确定出所有被调度的STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源,则根据传输本帧数据时所采用的通信资源,确定传输下一帧数据需要使用的通信资源,并根据确定出的所述传输下一帧数据需要使用的通信资源进行通信。
本实施例的资源指示装置,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
可选地,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
可选地,所述处理单元具体用于:
若所述STA获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示获取所述被明示指示通信资源的STA或站点组的数量;
根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所采用的通信资源;
根据所述确定出的传输本帧数据所采用的通信资源进行通信。
可选地,所述处理单元具体用于:
若所述STA获知所述STA或站点组为被缺省指示通信资源的STA或站 点组,则根据所述第四指示,获取所述被缺省指示通信资源的STA或站点组的数量和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述被缺省指示通信资源的STA或站点组以及所述被明示指示通信资源的STA或站点组的数量,获得所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
可选地,所述资源指示方式字段为X比特的第五指示;其中,所述X为正整数;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
可选地,所述处理单元具体用于:
若所述STA根据所述第五指示,获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
可选地,所述处理单元具体用于:
若所述STA根据所述第五指示,确定所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被缺省指示通信资源的STA或站点组和/或所述被明 示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述第四指示和所述第五指示,确定所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
可选地,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
可选地,所述资源指示方式字段为X比特的第七指示;其中,所述X为正整数;
所述第七指示中每个比特用于指示所述比特对应的所属区域是否为被缺省指示STA区域。
可选地,所述处理单元具体用于:
若所述STA根据所述第七指示获知所述STA或站点组所属区域为被明示指示STA区域,则根据所述第四指示获得所述被明示指示STA区域中所述被明示指示通信资源的STA的数量;
所述STA根据所述第六指示和所述被明示指示STA区域中所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示STA区域接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
可选地,所述处理单元具体用于:
若所述STA根据所述第七指示,获知所述STA或站点组所属区域为被缺省指示STA区域,则根据所述第四指示,确定所述被缺省指示STA区域中被缺省指示通信资源的STA的数量;
所述STA获取在上一帧数据中所述被缺省指示通信资源的STA或站点组 的排列位置,并根据所述上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,以及所述被缺省指示STA区域中STA或站点组的数量,获得传输本帧数据时所述被缺省指示通信资源的STA或站点组在所述被缺省指示STA区域内的排列位置;
所述STA根据所述排列位置,确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
可选地,所述资源指示方式字段为M比特的第八指示;所述第八指示用于指示本帧数据的传输序列;M为正整数;
所述处理单元具体用于:
所述STA根据所述第八指示,判断所述本帧数据是否丢失;
若确定所述本帧数据丢失,则所述STA根据所述资源指示信息确定传输下一帧数据所使用的通信资源。
本实施例的资源指示装置,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
图13为本发明提供的AP实施例一的结构示意图。如图13所示,本发明实施例提供的AP包括处理器31和发送器32。
其中,处理器31生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;发送器32用于发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
本实施例的AP,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
可选地,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
可选地,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
可选地,所述资源指示方式字段为第二指示;所述第二指示用于指示所 有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
可选地,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
可选地,所述资源指示方式字段为X比特的第五指示;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源;
其中,所述X为正整数。
可选地,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
可选地,所述资源指示方式字段为X比特的第七指示;
所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域;
其中,所述X为正整数。
可选地,所述资源指示方式字段为M比特的第八指示;
所述第八指示用于指示本帧数据的传输序列;M为正整数。
本实施例的AP,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
图14为本发明提供的STA实施例一的结构示意图。如图14所示,本发明实施例提供的STA包括接收器41和处理器42。
其中,接收器41用于接收接入点AP发送的资源指示信息;所述资源指 示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;处理器42用于根据所述资源指示信息通过所述指示的通信资源进行通信。
本实施例的STA,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
可选地,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
可选地,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
可选地,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源;
所述处理器42具体用于:
所述STA在根据所述第二指示确定出所有被调度的STA或者站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,则根据传输上一帧数据时所采用的通信资源,确定传输本帧数据需要使用的通信资源,并根据确定出的所述传输本帧数据需要使用的通信资源进行通信;或者,
在根据所述第三指示确定出所有被调度的STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源,则根据传输本帧数据时所采用的通信资源,确定传输下一帧数据需要使用的通信资源,并根据确定出的所述传输下一帧数据需要使用的通信资源进行通信。
可选地,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站 点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
可选地,所述处理器42具体用于:
若所述STA获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示获取所述被明示指示通信资源的STA或站点组的数量;
根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所采用的通信资源;
根据所述确定出的传输本帧数据所采用的通信资源进行通信。
可选地,所述处理器42具体用于:
若所述STA获知所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示,获取所述被缺省指示通信资源的STA或站点组的数量和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述被缺省指示通信资源的STA或站点组以及所述被明示指示通信资源的STA或站点组的数量,获得所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
可选地,所述资源指示方式字段为X比特的第五指示;其中,所述X为正整数;
所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
可选地,所述处理器42具体用于:
若所述STA根据所述第五指示,获知所述STA或站点组为被明示指示通 信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
可选地,所述处理器42具体用于:
若所述STA根据所述第五指示,确定所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量;
所述STA根据所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
所述STA根据所述第四指示和所述第五指示,确定所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
可选地,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
可选地,所述资源指示方式字段为X比特的第七指示;其中,所述X为正整数;
所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域。
可选地,所述处理器42具体用于:
若所述STA根据所述第七指示获知所述STA或站点组所属区域为被明示指示STA区域,则根据所述第四指示获得所述被明示指示STA区域中所述被明示指示通信资源的STA的数量;
所述STA根据所述第六指示和所述被明示指示STA区域中所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示STA区域接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
可选地,所述处理器42具体用于:
若所述STA根据所述第七指示,获知所述STA或站点组所属区域为被缺省指示STA区域,则根据所述第四指示,确定所述被缺省指示STA区域中被缺省指示通信资源的STA的数量;
所述STA获取在上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,并根据所述上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,以及所述被缺省指示STA区域中STA或站点组的数量,获得传输本帧数据时所述被缺省指示通信资源的STA或站点组在所述被缺省指示STA区域内的排列位置;
所述STA根据所述排列位置,确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
可选地,所述资源指示方式字段为M比特的第八指示;所述第八指示用于指示本帧数据的传输序列;M为正整数;
所述处理器42具体用于:
所述STA根据所述第八指示,判断所述本帧数据是否丢失;
若确定所述本帧数据丢失,则所述STA根据所述资源指示信息确定传输下一帧数据所使用的通信资源。
本实施例的STA,可以用于执行本发明任意实施例所提供的资源指示方法的技术方案,其实现原理和技术效果类似,此处不再赘述。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,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)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (48)

  1. 一种资源指示方法,其特征在于,包括:
    接入点AP生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
    发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
  2. 根据权利要求1所述的方法,其特征在于,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
  3. 根据权利要求1或2所述的方法,其特征在于,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
  5. 根据权利要求1-4任一项所述的方法,其特征在于,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
  6. 根据权利要求5所述的方法,其特征在于,所述资源指示方式字段为X比特的第五指示;
    所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源;
    其中,所述X为正整数。
  7. 根据权利要求5所述的方法,其特征在于,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
  8. 根据权利要求7所述的方法,其特征在于,所述资源指示方式字段为X比特的第七指示;
    所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域;
    其中,所述X为正整数。
  9. 根据权利要求1-8任一项所述的方法,其特征在于,所述资源指示方式字段为M比特的第八指示;
    所述第八指示用于指示本帧数据的传输序列;M为正整数。
  10. 一种资源指示方法,其特征在于,包括:
    站点STA接收接入点AP发送的资源指示信息;所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
    所述STA根据所述资源指示信息通过所述指示的通信资源进行通信。
  11. 根据权利要求10所述的方法,其特征在于,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
  12. 根据权利要求10或11所述的方法,其特征在于,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
  13. 根据权利要求10-12任一项所述的方法,其特征在于,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的 通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源;
    所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    所述STA在根据所述第二指示确定出所有被调度的STA或者站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,则根据传输上一帧数据时所采用的通信资源,确定传输本帧数据需要使用的通信资源,并根据确定出的所述传输本帧数据需要使用的通信资源进行通信;或者,
    在根据所述第三指示确定出所有被调度的STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源,则根据传输本帧数据时所采用的通信资源,确定传输下一帧数据需要使用的通信资源,并根据确定出的所述传输下一帧数据需要使用的通信资源进行通信。
  14. 根据权利要求10-12任一项所述的方法,其特征在于,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
  15. 根据权利要求14所述的方法,其特征在于,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    若所述STA获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示获取所述被明示指示通信资源的STA或站点组的数量;
    根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所采用的通信资源;
    根据所述确定出的传输本帧数据所采用的通信资源进行通信。
  16. 根据权利要求14所述的方法,其特征在于,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    若所述STA获知所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示,获取所述被缺省指示通信资源的STA或站点组的数量和/或所述被明示指示通信资源的STA或站点组的数量;
    所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
    所述STA根据所述被缺省指示通信资源的STA或站点组以及所述被明示指示通信资源的STA或站点组的数量,获得所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
    所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
    根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
  17. 根据权利要求14所述的方法,其特征在于,所述资源指示方式字段为X比特的第五指示;其中,所述X为正整数;
    所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
  18. 根据权利要求17所述的方法,其特征在于,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    若所述STA根据所述第五指示,获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被明示指示通信资源的STA或站点组的数量;
    所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
  19. 根据权利要求17所述的方法,其特征在于,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    若所述STA根据所述第五指示,确定所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被 缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量;
    所述STA根据所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
    所述STA根据所述第四指示和所述第五指示,确定所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
    所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
    根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
  20. 根据权利要求14所述的方法,其特征在于,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
  21. 根据权利要求20所述的方法,其特征在于,所述资源指示方式字段为X比特的第七指示;其中,所述X为正整数;
    所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域。
  22. 根据权利要求21所述的方法,其特征在于,所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    若所述STA根据所述第七指示获知所述STA或站点组所属区域为被明示指示STA区域,则根据所述第四指示获得所述被明示指示STA区域中所述被明示指示通信资源的STA的数量;
    所述STA根据所述第六指示和所述被明示指示STA区域中所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示STA区域接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
  23. 根据权利要求21所述的方法,其特征在于,所述根据所述资源指示 信息通过所述指示的通信资源进行通信,具体包括:
    若所述STA根据所述第七指示,获知所述STA或站点组所属区域为被缺省指示STA区域,则根据所述第四指示,确定所述被缺省指示STA区域中被缺省指示通信资源的STA的数量;
    所述STA获取在上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,并根据所述上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,以及所述被缺省指示STA区域中STA或站点组的数量,获得传输本帧数据时所述被缺省指示通信资源的STA或站点组在所述被缺省指示STA区域内的排列位置;
    所述STA根据所述排列位置,确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
  24. 根据权利要求14所述的方法,其特征在于,所述资源指示方式字段为M比特的第八指示;所述第八指示用于指示本帧数据的传输序列;M为正整数;
    所述根据所述资源指示信息通过所述指示的通信资源进行通信,具体包括:
    所述STA根据所述第八指示,判断所述本帧数据是否丢失;
    若确定所述本帧数据丢失,则所述STA根据所述资源指示信息确定传输下一帧数据所使用的通信资源。
  25. 一种接入点AP,其特征在于,包括:
    处理单元,用于生成资源指示信息,所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
    收发单元,用于发送所述资源指示信息,以便于所述被调度的站点或者站点组根据所述资源指示信息通过所述指示的通信资源进行通信。
  26. 根据权利要求25所述的AP,其特征在于,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
  27. 根据权利要求25或26所述的AP,其特征在于,所述资源指示方式 字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
  28. 根据权利要求25-27任一项所述的AP,其特征在于,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源。
  29. 根据权利要求28所述的AP,其特征在于,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
  30. 根据权利要求29所述的AP,其特征在于,所述资源指示方式字段为X比特的第五指示;
    所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源;
    其中,所述X为正整数。
  31. 根据权利要求29所述的AP,其特征在于,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与在上一帧中采用不同的通信资源;所述Z为正整数。
  32. 根据权利要求31所述的AP,其特征在于,所述资源指示方式字段为X比特的第七指示;
    所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域;
    其中,所述X为正整数。
  33. 根据权利要求25-32任一项所述的AP,其特征在于,所述资源指示方式字段为M比特的第八指示;
    所述第八指示用于指示本帧数据的传输序列;M为正整数。
  34. 一种站点STA,其特征在于,包括:
    收发单元,用于接收接入点AP发送的资源指示信息;所述资源指示信息用于指示被调度的站点或者站点组,以及,所述被调度的站点或者站点组需要使用的通信资源,所述资源指示信息中包含资源指示方式字段;所述资源指示方式字段包含:针对所述被调度的站点或者站点组的每一个,明示的指示所述需要使用的通信资源,或者,缺省的指示所述需要使用的通信资源;
    处理单元,用于根据所述资源指示信息通过所述指示的通信资源进行通信。
  35. 根据权利要求34所述的STA,其特征在于,所述资源指示信息为物理层信令或者媒体接入控制层MAC帧。
  36. 根据权利要求34或35所述的STA,其特征在于,所述资源指示方式字段为第一指示;所述第一指示用于指示本次调度中是否需要明示的指示所述被调度的站点或者站点组需要使用的通信资源。
  37. 根据权利要求34-36任一项所述的STA,其特征在于,所述资源指示方式字段为第二指示;所述第二指示用于指示所有被调度的STA或者站点组在传输本帧数据时是否均采用与在上一帧中采用完全相同或者部分相同的通信资源,或者所述资源指示方式字段为第三指示,所述第三指示用于指示所有被调度的STA或者站点组在传输下一帧数据时是否均采用与在本帧中采用完全相同或者部分相同的通信资源;
    所述处理单元具体用于:
    所述STA在根据所述第二指示确定出所有被调度的STA或者站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,则根据传输上一帧数据时所采用的通信资源,确定传输本帧数据需要使用的通信资源,并根据确定出的所述传输本帧数据需要使用的通信资源进行通信;或者,
    在根据所述第三指示确定出所有被调度的STA或者站点组在传输下一帧数据时均采用与在本帧中采用完全相同或者部分相同的通信资源,则根据传 输本帧数据时所采用的通信资源,确定传输下一帧数据需要使用的通信资源,并根据确定出的所述传输下一帧数据需要使用的通信资源进行通信。
  38. 根据权利要求34-36任一项所述的STA,其特征在于,所述资源指示方式字段为第四指示;所述第四指示用于指示以下之一或其任意组合:被明示指示通信资源的STA或站点组的数量,被缺省指示通信资源的STA或站点组的数量,所述被明示指示通信资源的STA或站点组以及所述被缺省指示通信资源的STA或站点组的数量之和。
  39. 根据权利要求38所述的STA,其特征在于,所述处理单元具体用于:
    若所述STA获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示获取所述被明示指示通信资源的STA或站点组的数量;
    根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所采用的通信资源;
    根据所述确定出的传输本帧数据所采用的通信资源进行通信。
  40. 根据权利要求38所述的STA,其特征在于,所述处理单元具体用于:
    若所述STA获知所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示,获取所述被缺省指示通信资源的STA或站点组的数量和/或所述被明示指示通信资源的STA或站点组的数量;
    所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
    所述STA根据所述被缺省指示通信资源的STA或站点组以及所述被明示指示通信资源的STA或站点组的数量,获得所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
    所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
    根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
  41. 根据权利要求38所述的STA,其特征在于,所述资源指示方式字段 为X比特的第五指示;其中,所述X为正整数;
    所述第五指示中的每一个比特分别用于指示所述比特对应的所述STA或站点组在传输本帧数据时是否采用与在上一帧中采用完全相同或者部分相同的通信资源。
  42. 根据权利要求41所述的STA,其特征在于,所述处理单元具体用于:
    若所述STA根据所述第五指示,获知所述STA或站点组为被明示指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被明示指示通信资源的STA或站点组的数量;
    所述STA根据所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
  43. 根据权利要求41所述的STA,其特征在于,所述处理单元具体用于:
    若所述STA根据所述第五指示,确定所述STA或站点组为被缺省指示通信资源的STA或站点组,则根据所述第四指示和所述第五指示,获取所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量;
    所述STA根据所述被缺省指示通信资源的STA或站点组和/或所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示通信资源的STA或站点组接收到的所述资源指示信息,以确定本次新分配的通信资源;
    所述STA根据所述第四指示和所述第五指示,确定所述被缺省指示通信资源的STA或站点组在所有STA或站点组中的排列位置;
    所述STA根据所述排列位置确定传输上一帧数据所采用的通信资源,并根据所述传输上一帧数据所采用的通信资源确定传输本帧数据需要使用的通信资源;
    根据所述确定出的传输本帧数据需要使用的通信资源进行通信。
  44. 根据权利要求38所述的STA,其特征在于,所述资源指示方式字段为Z比特的第六指示;所述第六指示用于指示被缺省指示STA区域和被明示指示STA区域的大小;所述被缺省指示STA区域内的STA或站点组在传输本帧数据时均采用与在上一帧中采用完全相同或者部分相同的通信资源,所述被明示指示STA区域内至少有一个STA或站点组在传输本帧数据时采用与 在上一帧中采用不同的通信资源;所述Z为正整数。
  45. 根据权利要求44所述的STA,其特征在于,所述资源指示方式字段为X比特的第七指示;其中,所述X为正整数;
    所述第七指示中每个比特用于指示所述比特对应的STA或站点组所属区域是否为被缺省指示STA区域。
  46. 根据权利要求45所述的STA,其特征在于,所述处理单元具体用于:
    若所述STA根据所述第七指示获知所述STA或站点组所属区域为被明示指示STA区域,则根据所述第四指示获得所述被明示指示STA区域中所述被明示指示通信资源的STA的数量;
    所述STA根据所述第六指示和所述被明示指示STA区域中所述被明示指示通信资源的STA或站点组的数量,遍历所有被明示指示STA区域接收到的所述资源指示信息,以确定传输本帧数据所使用的通信资源。
  47. 根据权利要求45所述的STA,其特征在于,所述处理单元具体用于:
    若所述STA根据所述第七指示,获知所述STA或站点组所属区域为被缺省指示STA区域,则根据所述第四指示,确定所述被缺省指示STA区域中被缺省指示通信资源的STA的数量;
    所述STA获取在上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,并根据所述上一帧数据中所述被缺省指示通信资源的STA或站点组的排列位置,以及所述被缺省指示STA区域中STA或站点组的数量,获得传输本帧数据时所述被缺省指示通信资源的STA或站点组在所述被缺省指示STA区域内的排列位置;
    所述STA根据所述排列位置,确定本次新分配的通信资源,以及传输上一帧数据所使用的通信资源。
  48. 根据权利要求38所述的STA,其特征在于,所述资源指示方式字段为M比特的第八指示;所述第八指示用于指示本帧数据的传输序列;M为正整数;
    所述处理单元具体用于:
    所述STA根据所述第八指示,判断所述本帧数据是否丢失;
    若确定所述本帧数据丢失,则所述STA根据所述资源指示信息确定传输下一帧数据所使用的通信资源。
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