WO2018153157A1 - Procédé et dispositif d'envoi d'informations - Google Patents

Procédé et dispositif d'envoi d'informations Download PDF

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Publication number
WO2018153157A1
WO2018153157A1 PCT/CN2017/118511 CN2017118511W WO2018153157A1 WO 2018153157 A1 WO2018153157 A1 WO 2018153157A1 CN 2017118511 W CN2017118511 W CN 2017118511W WO 2018153157 A1 WO2018153157 A1 WO 2018153157A1
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WO
WIPO (PCT)
Prior art keywords
switching
parameter
radio frame
service set
basic service
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PCT/CN2017/118511
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English (en)
Chinese (zh)
Inventor
韩志强
方勇刚
吕开颖
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中兴通讯股份有限公司
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Publication of WO2018153157A1 publication Critical patent/WO2018153157A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates to communications technologies, particularly in the field of wireless local area network technologies, and more particularly, to an information transmitting method and apparatus.
  • the BSS color is defined as the identifier of the basic service set for performing the BSS difference.
  • a BSS has only one BSS color.
  • the BSS color occupies 6 bits and can indicate 0-63, a total of 64 types of identifiers. Since 11ax defines a dense network application technology and there is a hidden terminal, when an access point (AP) selects a BSS color, it is likely that the selected BSS color is the same as the BSS color selected by other APs, as shown in FIG. Show.
  • the first access point AP1 and the second access point AP2 are mutually hidden terminals.
  • the first access point AP1 and the second access point AP2 have the BSS color selected by the first access point AP1 and the second access point AP2 because they do not communicate with each other even if the network scanning is performed. It may be the same, especially in dense scenes.
  • an information transmitting method comprising: an access point generating a radio frame, wherein the radio frame includes a first indication parameter; and the first indication parameter is set to correct a basic service set identifier switching The moment is either set to indicate radio frame information carrying a valid handover parameter; the access point transmits the radio frame.
  • a method for basic service set identity switching including: a station receiving a radio frame, the radio frame including a first indication parameter; and the station correcting a basic according to the first indication parameter
  • the service set identifies a handover time, or determines a radio frame carrying a valid handover parameter according to the first indication parameter.
  • an information transmitting apparatus comprising: a framing module configured to generate a radio frame, wherein the radio frame includes a first indication parameter; and the first indication parameter is set to correct a basic service The moment when the set identifier is switched or set to indicate radio frame information carrying a valid handover parameter; and the sending module is configured to transmit the radio frame.
  • the present disclosure also provides an access point including the above information transmitting apparatus.
  • an apparatus for basic service set identifier switching comprising: a receiving module configured to receive a radio frame, the radio frame includes a first indication parameter; and a processing module configured to The first indication parameter corrects the basic service set identifier switching moment, or determines a radio frame carrying the valid handover parameter according to the first indication parameter.
  • a station including the apparatus for marking the basic service set identity described above.
  • a system for basic service set identification switching including an access point and a site.
  • the access point includes: a framing module, configured to generate a radio frame, where the radio frame includes a first indication parameter, where the first indication parameter is used to correct a time when the basic service set identifier is switched or is used to indicate carrying a valid handover parameter.
  • a radio frame information a sending module, configured to send the radio frame, and a switching module configured to perform basic service set identifier switching according to the first indication parameter.
  • the station includes: a receiving module, configured to receive the radio frame; and a processing module, configured to: correct a basic service set identifier switching moment according to the first indication parameter, or determine a radio frame carrying a valid handover parameter according to the first indication parameter .
  • a method for basic service set identification handover comprising: an access point generating a radio frame, the radio frame including a first indication parameter; the first indication parameter being used for Correcting a time when the basic service set identifier is switched or for indicating radio frame information carrying a valid handover parameter; the access point transmits the radio frame; and the access point performs basic service set identifier switching according to the first indication parameter; Determining a radio frame; the station corrects a basic service set identifier switching moment according to the first indication parameter, or determines a radio frame carrying a valid handover parameter according to the first indication parameter.
  • Embodiments of the present disclosure also provide a computer readable storage medium storing computer executable instructions that are implemented when the computer executable instructions are executed.
  • the foregoing solution generates a radio frame by using an access point, where the radio frame includes a first indication parameter indicating a basic service set identifier switching, and the access point or the station performs basic service set identifier switching according to the first indication parameter, thereby setting
  • the first indication parameter is used to determine the time when the basic service set identifier is switched, and the time for switching the basic service set identifier is controlled, thereby implementing the basic service set identifier switching, thereby solving the same basic service set identifier of different access points existing in the related technology.
  • the embodiment of the present disclosure switches to a new basic service set identifier at a time when the first handover time is added with the offset value indication by setting the first indication parameter to the offset value, or the beacon carrying the first indication parameter
  • the target beacon transmission time corresponding to the frame is added to the time indicated by the offset value, and is switched to the new basic service set identifier; or the first indication parameter indicates the radio frame information carrying the valid handover parameter, and the effective handover parameter is carried according to the
  • the target beacon switching parameter and/or the offset value indicated by the radio frame performs basic service set identifier switching, so that the basic service set identifier switching time of the radio frame indication of different formats is the same, and the switching moment may exist. Error, but this error does not affect system performance and transmission.
  • the embodiment of the present disclosure solves the problem that the basic service set identifier switching time is inconsistent in the case of dual beacons and even multiple beacons.
  • the erroneous operation of spatial multiplexing of the sites in the BSS can be reduced, and the transmission can be effectively performed.
  • FIG. 1 is a schematic diagram of a case where the BSS colors selected by the first access point AP1 and the second access point AP2 are the same in the related art;
  • FIG. 2 is a schematic diagram of an access point performing a BSS color switch after a number of TBTTs in a beacon frame or by a unicast frame;
  • FIG. 3 is a schematic diagram showing a case where a BSC color of a part of a site in a BSS is different from a BSS color of another part of a site when a transmission method of a dual Beacon is adopted;
  • FIG. 4 is a flowchart of an information sending method for basic service set identifier switching according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a method for switching basic service set identifiers according to Embodiment 2 of the present disclosure
  • FIG. 6 is a block diagram of an information transmitting apparatus for basic service set identifier switching according to Embodiment 3 of the present disclosure
  • FIG. 7 is a structural diagram of an apparatus for basic service set identifier switching according to Embodiment 4 of the present disclosure.
  • FIG. 8 is a schematic diagram of BSS color switching when an access point supports a dual beacon function according to Application Example 1 of the present disclosure
  • FIG. 10 is a schematic diagram showing an increase in offset value in Application Example 3 of the present disclosure.
  • FIG. 11 is a schematic diagram showing an increase of a second indication parameter in Application Example 3 of the present disclosure.
  • FIG. 12 is a schematic diagram showing an increase of a reference parameter in Application Example 4 of the present disclosure.
  • FIG. 13 is a schematic diagram showing a first indication parameter (offset value) indicating switching in Application Example 5 of the present disclosure.
  • the access point AP performs BSS Color switching in the beacon frame or through the unicast frame to notify the STA (site) how many target beacon transmission time (TBTT), as shown in FIG. 2 .
  • a dual beacon (dual beacon) transmission method is defined.
  • One Beacon is sent in a non-11ax format, and the other is transmitted in an 11ax format.
  • the first station STA1 performs information switching according to the first beacon frame in the non-11ax format
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 4 is a flowchart of an information sending method according to Embodiment 1 of the present disclosure
  • the method in this embodiment is applied to an access point, and the method includes the following steps.
  • the access point In step 401, the access point generates a radio frame, where the radio frame includes a first indication parameter; the first indication parameter is used to correct a time when the basic service set identifier is switched or to indicate radio frame information carrying a valid handover parameter.
  • the access point transmits a radio frame.
  • the first indication parameter includes an offset value; and the time when the basic service set identifier is switched is the first handover time plus an offset value.
  • the radio frame further includes a target beacon switching parameter, where the target beacon switching parameter is a target beacon that needs to continue to maintain the old basic service set identifier before switching to the new basic service set identifier.
  • the number of transmission moments For example, when the target beacon switching parameter is set to 2, it means that it is necessary to wait for 2 target beacon transmission times (TBTT) to switch the BSS color.
  • TBTT target beacon transmission times
  • the first switching moment is determined according to the target beacon switching parameter, or the first switching moment is a target beacon transmission moment corresponding to the beacon frame carrying the first indication parameter.
  • the first switching moment is the reference reference, and the value of the offset value and the reference reference can be determined by the access point according to the actual situation in the application.
  • the first switching moment is determined according to the target beacon switching parameter, and the first switching moment is a target beacon transmission time corresponding to the beacon frame carrying the target beacon switching parameter of 0.
  • the first switching moment may also be other time points, which is not limited by the embodiment of the present disclosure.
  • the method further includes: the radio frame further includes a second indication parameter, where the second indication parameter is used to indicate whether the first indication parameter exists.
  • the radio frame includes two or more formats, and the time of the basic service set identifier switching indicated in the two or more radio frames is the same.
  • the radio frame information carrying the effective handover parameter includes at least one of the following: a frame format, a sequence number, and a bandwidth.
  • the radio frame includes a beacon frame or a unicast radio frame or a broadcast radio frame.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 5 is a flowchart of a method for basic service set identifier switching according to Embodiment 2 of the present disclosure
  • the method in this embodiment is applied to a site, and the method includes the following steps.
  • step 501 the station receives a radio frame, the radio frame including a first indication parameter.
  • the station corrects the basic service set identification switching time according to the first indication parameter, or determines a radio frame carrying the effective handover parameter according to the first indication parameter.
  • the first indication parameter includes an offset value; and the station performs basic service set identifier switching at a time when the first switching moment is added with an offset value.
  • the method further includes: the station receiving the radio frame carrying the valid handover parameter, and determining the basic service set identifier switching time according to the valid handover parameter.
  • the radio frame further includes a target beacon switching parameter, where the target beacon switching parameter is a target that needs to continue to maintain the old basic service set identifier before switching to the new basic service set identifier.
  • the number of beacon transmission moments is a target that needs to continue to maintain the old basic service set identifier before switching to the new basic service set identifier. The number of beacon transmission moments.
  • the first switching moment is determined according to the target beacon switching parameter.
  • the first switching moment is a target beacon transmission time corresponding to the beacon frame carrying the first indication parameter.
  • the first switching moment is determined according to the target beacon switching parameter, and the first switching moment is a target beacon transmission moment corresponding to the beacon frame carrying the target beacon switching parameter of 0. .
  • the radio frame further includes a second indication parameter, where the second indication parameter is used to indicate whether the first indication parameter exists.
  • the radio frame includes two or more formats, and the times of the basic service set identifier switching indicated in the two or more radio frames are the same.
  • the radio frame information carrying the valid handover parameter includes at least one of the following: a frame format, a sequence number, and a bandwidth.
  • the effective handover parameter refers to determining, by using a parameter, a basic service set identifier switching moment, where the valid handover parameter includes: a target beacon switching parameter and/or an offset value.
  • the radio frame includes a beacon frame or a unicast radio frame or a broadcast radio frame.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • FIG. 6 is a block diagram of an information sending apparatus according to Embodiment 3 of the present disclosure.
  • the apparatus is applied to an access point, and the apparatus includes: a framing module and a sending module.
  • the framing module is configured to generate a radio frame, where the radio frame includes a first indication parameter, where the first indication parameter is set to correct a time when the basic service set identifier is switched or to indicate radio frame information carrying a valid handover parameter.
  • the sending module is set to send wireless frames.
  • the first indication parameter included in the radio frame generated by the framing module includes an offset value; and the time when the basic service set identifier is switched is the first handover time plus an offset value.
  • the radio frame generated by the framing module further includes a target beacon switching parameter, where the target basic beacon switching parameter needs to continue to maintain the old basic service before switching to the new basic service set identifier. Sets the number of target beacon transmission times identified.
  • the first switching moment is determined according to the target beacon switching parameter, or, optionally, the first switching moment is a target beacon transmission moment corresponding to the beacon frame carrying the first indication parameter.
  • the first switching moment is determined according to the target beacon switching parameter, and the first switching moment is a target beacon transmission time corresponding to the beacon frame carrying the target beacon switching parameter of 0.
  • the radio frame generated by the framing module further includes a second indication parameter, where the second indication parameter is used to indicate whether the first indication parameter exists.
  • the radio frame generated by the framing module includes two or more formats, and the time of the basic service set identifier switching indicated in the two or more radio frames is the same.
  • the radio frame information generated by the framing module to carry the effective handover parameter includes at least one of the following: a frame format, a sequence number, and a bandwidth.
  • the effective handover parameters include: a target beacon switching parameter and/or an offset value.
  • the radio frame generated by the framing module includes a beacon frame or a unicast radio frame or a broadcast radio frame.
  • an access point including the information transmitting apparatus described above, and the description of the information transmitting apparatus is described with reference to the description of the access point.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the apparatus in this embodiment is applied to a site, and the device includes: a receiving module and a processing module.
  • the receiving module is configured to receive a radio frame, where the radio frame includes a first indication parameter.
  • the processing module is configured to correct a basic service set identifier switching moment according to the first indication parameter, or determine a radio frame carrying the valid handover parameter according to the first indication parameter.
  • the first indication parameter included in the radio frame received by the receiving module includes an offset value; and the station performs basic service set identifier switching at a time when the first switching moment is added with an offset value.
  • the receiving module is further configured to receive a radio frame carrying a valid handover parameter
  • the processing module is further configured to determine a basic service set identifier switching moment according to the effective handover parameter
  • the radio frame received by the receiving module further includes a target beacon switching parameter, where the target beacon switching parameter needs to continue to maintain the old basic service set before switching to the new basic service set identifier. The number of identified target beacon transmission moments.
  • the first switching moment is determined according to the target beacon switching parameter, or, optionally, the first switching moment is a target beacon transmission moment corresponding to the beacon frame carrying the first indication parameter.
  • the first switching moment is determined according to the target beacon switching parameter, and the first switching moment is a target beacon transmission time corresponding to the beacon frame carrying the target beacon switching parameter of 0.
  • the radio frame received by the receiving module further includes a second indication parameter, where the second indication parameter is used to indicate whether the first indication parameter exists.
  • the radio frame received by the receiving module includes two or more formats, and the times of the basic service set identifier switching indicated in the two or more radio frames are the same.
  • the radio frame received by the receiving module indicates that the radio frame information carrying the valid handover parameter includes at least one of the following: a frame format, a sequence number, and a bandwidth.
  • the effective handover parameters include: a target beacon switching parameter and/or an offset value.
  • the radio frame received by the receiving module includes a beacon frame or a unicast radio frame or a broadcast radio frame.
  • a station including the apparatus for basic service set identifier switching described above, with reference to the above description of the apparatus for basic service set identifier switching.
  • Embodiments of the present disclosure also provide a system for basic service set identity switching, including access points and sites.
  • the access point includes: a framing module, configured to generate a radio frame, where the radio frame includes a first indication parameter; the first indication parameter is used to correct a time when the basic service set identifier is switched or is used to indicate a wireless carrying a valid handover parameter a frame information, a sending module, configured to send the wireless frame, and a switching module configured to perform basic service set identifier switching according to the first indication parameter.
  • a framing module configured to generate a radio frame, where the radio frame includes a first indication parameter; the first indication parameter is used to correct a time when the basic service set identifier is switched or is used to indicate a wireless carrying a valid handover parameter a frame information
  • a sending module configured to send the wireless frame
  • a switching module configured to perform basic service set identifier switching according to the first indication parameter.
  • the station includes: a receiving module, configured to receive a radio frame; and a processing module, configured to correct a basic service set identifier switching moment according to the first indication parameter, or determine a radio frame carrying the valid handover parameter according to the first indication parameter.
  • the first indication parameter included in the radio frame generated by the framing module includes an offset value, and the time when the basic service set identifier is switched is the first handover time plus an offset value.
  • the receiving module is further configured to receive a radio frame carrying a valid handover parameter
  • the processing module is further configured to determine a basic service set identifier switching moment according to the effective handover parameter.
  • the embodiment of the present disclosure further provides a method for basic service set identifier switching, including: an access point generates a radio frame, where the radio frame includes a first indication parameter; and the first indication parameter is used to correct a basic service set identifier switch.
  • the time is either used to indicate radio frame information carrying a valid handover parameter; the access point transmits the radio frame; the access point performs basic service set identifier switching according to the first indication parameter; the station receives the radio frame; and the station according to the first indication parameter Correcting the basic service set to identify the switching moment, or determining the radio frame carrying the valid handover parameter according to the first indication parameter.
  • the first indication parameter includes an offset value; the time when the basic service set identifier is switched is a first switching moment plus an offset value.
  • the method further includes: the station receives the radio frame carrying the valid handover parameter, and determines the basic service set identifier switching moment according to the effective handover parameter.
  • an access point AP associates two STAs: a first station (STA1) and a second station (STA2).
  • the AP supports the dual beacon function: sending the beacon in the first format and the beacon in the second format.
  • the first format is a non-11ax format
  • the second format is a 11ax format.
  • the actual application can also include beacons in other formats.
  • the first station STA1 operates according to the parameters of the first beacon frame (Beacon-1) of the first format (not 11ax format), and the second station STA2 according to the second format (11ax format)
  • the parameters of the beacon frame (Beacon-2) operate.
  • the AP selects a value as the BSS color of the BSS. During the life cycle of the BSS, the AP finds that its BSS color is the same as the BSS color of other BSSs, and there are more serious collisions.
  • the AP decides to perform a BSS color switch.
  • the AP indicates the target beacon switching parameter and the first indication parameter (offset value) in the beacon of the 11ax format and the beacon of the non-11ax format.
  • the target beacon switching parameter is used to indicate the number of TBTTs that the access point and the station need to continue to maintain the old BSS color before switching to the new BSS color.
  • the offset value is used to indicate the offset time of the TBTT corresponding to the beacon frame carrying the target beacon switching parameter equal to zero.
  • the TBTT corresponding to the beacon frame carrying the target indication handover parameter equal to 0 is the first handover time. The moment when the AP and the station perform basic service set identifier switching is the time corresponding to the first switching time plus the offset value
  • the point of the color switch indicated by the beacon of the 11ax format and the beacon of the non-11ax format is the same.
  • the beacon interval transmitted by the second beacon frame (Beacon-2) of the second format (11ax format) and the first beacon frame (Beacon-1) of the first format (non-11ax format) is the same.
  • the first beacon frame Beacon-1 notifies the target beacon switching parameter of the first beacon frame Beacon-1 and the first indication parameter (offset value); the second beacon frame Beacon-2 notifies the second beacon frame Beacon- The target beacon switching parameter of 2 and the first indication parameter (offset value).
  • FIG. 8 depicts a special case in which the target beacon switching parameter of the first beacon frame Beacon-1 is equal to 0, and the TBTT corresponding to the second beacon frame Beacon-2 is earlier than the TBTT corresponding to 0. Therefore, the offset value indicated by the first beacon frame Beacon-1 is not 0, and the target beacon switching parameter of the second beacon frame Beacon-2 is set equal to the TBTT corresponding to 0 and the first beacon frame Beacon-1.
  • the target beacon switching parameter is equal to the time difference of the TBTT corresponding to 0.
  • the second beacon frame Beacon-2 indicates an offset value of zero.
  • the first time point at which the first beacon frame Beacon-1 receives the BSS color switch is the same as the second time point at which the second beacon frame Beacon-2 receives the BSS color switch. It should be noted that the timing of the handover is the same, and may cause a certain deviation due to factors such as clock accuracy, reception delay, and processing delay.
  • the time points of the switching in the embodiment of the present disclosure are the same, which means that there may be a time difference within the allowable range between the first time point and the second time point.
  • the offset values indicated by the first beacon frame Beacon-1 and the second beacon frame Beacon-2, respectively, may not be zero.
  • the STA1 may not continue to listen to the subsequent first beacon frame, and switch the parameter and the offset value according to the target beacon of the first beacon frame Beacon-1. Get the moment when the BSS color is switched.
  • the obtaining method is: the TBTT+ target beacon switching parameter *BI+ offset value corresponding to the current first beacon frame Beacon-1.
  • BI is Beacon Interval.
  • an access point AP associates two STAs: a first station (STA1) and a second station (STA2).
  • the AP supports the dual beacon function: sending beacons in the 11ax format and beacons in the non-11ax format.
  • STA1 operates according to the parameters of the first beacon frame (Beacon-1) in the non-11ax format
  • STA2 operates according to the parameters of the second beacon frame (Beacon-2) in the 11ax format.
  • the AP selects a value as the BSS color of the BSS.
  • the AP finds that its BSS color is the same as the BSS color of other BSSs, and there are more serious collisions.
  • the AP decides to perform a BSS color switch.
  • the AP indicates the target beacon switching parameter and the first indication parameter (offset value) in the beacon of the 11ax format and the beacon of the non-11ax format.
  • the target beacon switching parameter is used to indicate the number of TBTTs that the access point and the station need to continue to maintain the old BSS color before switching to the new BSS color.
  • the offset value is used to indicate the offset time of the TBTT corresponding to the beacon frame carrying the target beacon switching parameter equal to zero.
  • the TBTT corresponding to the beacon frame carrying the target indication handover parameter equal to 0 is the first handover time.
  • the moment when the AP and the station perform basic service set identifier switching is the time corresponding to the first switching time plus the offset value.
  • the time point of the Color switch indicated by the beacon of the 11ax format and the beacon of the non-11ax format is the same.
  • the Beacon Interval sent by the beacon (the second beacon frame, Beacon-2) in the 11ax format and the beacon (the first beacon frame, Beacon-1) in the non-11ax format are different.
  • the AP finds that its BSS Color is the same as the BSS Color of other BSSs and decides to perform BSS Color switching.
  • Beacon-1 notifies Beacon-1 of the target beacon switching parameters and offset values;
  • Beacon-2 notifies Beacon-2 of the target beacon switching parameters and offset values.
  • Figure 9 depicts a special case where Beacon-1 indicates an offset value of 0 and Beacon-2 indicates an offset value other than zero.
  • the time when the Beacon-1 receives the BSS color switch is the same as the time when the Beacon-2 receives the BSS color switch.
  • the offset values indicated by the first beacon frame Beacon-1 and the second beacon frame Beacon-2, respectively, may not be zero.
  • the STA1 may not continue to listen to the subsequent beacon frame, and obtain the target beacon switching parameter and the offset value of the first beacon frame Beacon-1.
  • the above-mentioned obtaining method may have a deviation in practical applications.
  • the access point AP supports the dual beacon function: sending beacons in the 11ax format and beacons in the non-11ax format.
  • the AP finds that its BSS color is the same as the BSS color of other BSSs, and there are more serious collisions.
  • the AP decides to perform a BSS color switch.
  • the AP notifies the site of the BSS Color handover parameter by a unicast radio frame or a broadcast radio frame.
  • the format used by the AP to notify the BSS color switching parameters by using a unicast radio frame or a broadcast radio frame is as shown in FIG.
  • the Color Switch Countdown corresponds to the target beacon switching parameter
  • the Color Switch Offset corresponds to the first indication parameter (offset value).
  • the length of the Color Switch Offset field can be designed according to the unit. If the unit of this field is 1 microsecond (us), then in order to be able to indicate that the time is long enough, the number of bits required is relatively large. If 2 bytes are used, then a suitable value is in units of 8 microseconds or 16 us.
  • the length and unit of the Color Switch Offset field can be other values.
  • some bits can be used to indicate whether the Color Switch Offset field exists before the Color Switch Offset field. This indication is the second indication parameter.
  • Figure 11 shows the use of 1 bit of the New BSS Color Information field to indicate the presence of the Color Switch Offset field. If the indicator Color Switch Offset field does not exist, it implicitly indicates that the value indicated by the Color Switch Offset field is 0.
  • an access point AP associates two STAs: a first station (STA1) and a second station (STA2).
  • the AP supports the dual beacon function: sending beacons in the 11ax format and beacons in the non-11ax format.
  • STA1 can receive both beacons in the 11ax format and beacons in the non-11ax format.
  • STA2 can only receive beacons in the 11ax format. The reason for the above situation may be that STA1 is closer to the AP, and STA2 is farther from the AP.
  • the AP selects a value as the BSS color of the BSS. During the life cycle of the BSS, the AP finds that its BSS color is the same as the BSS color of other BSSs, and there is a serious collision. The AP decides to perform BSS color switching.
  • the AP indicates the target beacon switching parameter and the first indication parameter (indicating the radio frame carrying the valid handover parameter) in the beacon of the 11ax format and the beacon of the non-11ax format.
  • the target beacon switching parameter is used to indicate the number of TBTTs that the access point and the station need to continue to maintain the old BSS color before switching to the new BSS color.
  • the first indication parameter is used to indicate whether the target beacon switching parameter of the non-11ax format beacon or the 11ax format Beacon frame is taken as the standard.
  • the first indication parameter indicates that the parameter in the Beacon in the 11ax format is taken as the standard.
  • the first indication parameter indicates that the parameter in the Beacon in the 11ax format is taken as the standard.
  • STA1 can receive only one type of Beacon, such as a Beacon in non-11ax format.
  • the first indication parameter indicates that the Beacon in the 11ax format is used.
  • STA1 can receive the Beacon in the 11ax format.
  • power can be saved, and it can be consistent with the time point at which only STA2 parameters of the Beacon format of the 11ax format can be switched.
  • the AP only sends Beacons that are not in the 11ax format.
  • the first indication parameter is indicated as being in Beacon format other than 11ax format.
  • Figure 12 is a reference parameter field using the New BSS Color Information field to indicate a first indication parameter.
  • the reference parameter is indicated by 1 bit. If set to 1, the Beacon in the 11ax format is taken as the standard, and 0 is set to be in the non-11ax format.
  • an access point AP associates two STAs: a first station (STA1) and a second station (STA2).
  • the AP supports the dual beacon function: sending beacons in the 11ax format and beacons in the non-11ax format.
  • STA1 can receive both beacons in the 11ax format and beacons in the non-11ax format.
  • STA2 can only receive beacons in the 11ax format. The reason for the above situation may be that STA1 is closer to the AP, and STA2 is farther from the AP.
  • the AP selects a value as the BSS color of the BSS. During the life cycle of the BSS, the AP finds that its BSS color is the same as the BSS color of other BSSs, and there is a serious collision. The AP decides to perform BSS color switching.
  • the AP indicates the first indication parameter (offset value) in the beacon of the 11ax format and the beacon of the non-11ax format.
  • the time point at which the BSS color is switched calculated by the offset value indicated in the beacon format of the 11ax format and the beacon of the non-11ax format should be the same.
  • the first indication parameter (offset value) indicated by the AP in the beacon of the 11ax format or the beacon of the non-11ax format needs to ensure that the basic service set switching time calculated by the beacon according to which format should be the same.
  • the STA1 calculates the time point of switching the BSS color according to the parameters of the beacon of the 11ax format or the beacon of the non-11ax format: the TBTT+ offset value corresponding to the beacon frame currently carrying the offset value.
  • the STA2 calculates the time point of switching the BSS color according to the parameters of the beacon in the 11ax format: the TBTT+ offset value corresponding to the beacon frame currently carrying the offset value.
  • the time points calculated by STA1 and STA2 are the same. This way the site switches the BSS color at the same time.
  • FIG. 13 is a schematic diagram showing a first indication parameter (offset value) carried by a Beacon in a Beacon in a 11ax format and a Beacon in a Beacon in a non-11ax format.
  • the AP also carries the offset value in the other Beacons in the 11ax format and the Beacon in the non-11ax format.
  • the offset values may be different. The AP needs to ensure that the basic service set switching time calculated by the offset values carried in all beacons is consistent. .
  • the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions that implement the method of the embodiments of the present disclosure when the computer executable instructions are executed.
  • the above computer readable storage medium includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform portions of the steps of the methods described in various embodiments of the present disclosure.
  • the computer readable storage medium includes: a U disk, a removable 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'envoi d'informations. Le procédé d'envoi d'informations comprend les étapes suivantes : un point d'accès génère une trame radio qui comprend un premier paramètre d'indication utilisé pour corriger un instant de commutation d'un identifiant d'ensemble de services de base ou utilisé pour indiquer des informations de trame radio portant un paramètre de commutation valide ; le point d'accès envoie la trame radio. Selon des modes de réalisation de la présente invention, en réglant un premier paramètre d'indication et en déterminant un instant de commutation d'un identifiant d'ensemble de services de base, le temps de commutation de l'identifiant d'ensemble de services de base est commandé et la commutation de l'identifiant d'ensemble de services de base est effectuée en fonction du paramètre d'indication de telle sorte que le problème dans l'état de la technique, selon lequel les différents points d'accès présentent le même identifiant d'ensemble de services de base, est résolu. Dans les modes de réalisation de la présente invention, le temps de commutation d'identifiants d'ensemble de services de base indiqués par les trames radio de différents formats est le même de telle sorte que des opérations erronées de multiplexage spatial d'un site dans l'ensemble de services de base peuvent être réduites et une transmission efficace peut être garantie.
PCT/CN2017/118511 2017-02-23 2017-12-26 Procédé et dispositif d'envoi d'informations WO2018153157A1 (fr)

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CN113543243B (zh) * 2020-04-18 2022-12-13 华为技术有限公司 链路处理方法、多链路设备及计算机可读存储介质
WO2022261900A1 (fr) * 2021-06-17 2022-12-22 北京小米移动软件有限公司 Procédé de traitement de paramètre, dispositif de point d'accès, dispositif de station et support de stockage
CN115777231A (zh) * 2021-07-07 2023-03-10 北京小米移动软件有限公司 信号处理方法及装置、电子设备及存储介质

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CN1747375A (zh) * 2004-04-12 2006-03-15 三星电子株式会社 在无线通信系统中使两个终端同步的方法和系统
CN101047910A (zh) * 2006-03-27 2007-10-03 上海宇梦通信科技有限公司 一种双模手机中两种模式同步的方法
WO2016112306A1 (fr) * 2015-01-09 2016-07-14 Interdigital Patent Holdings, Inc. Transmission améliorée en couleur bss dans wlan (bss-cet)
WO2016136116A1 (fr) * 2015-02-27 2016-09-01 ソニー株式会社 Dispositif de traitement d'informations
US20160345258A1 (en) * 2015-05-22 2016-11-24 Qualcomm Incorporated Detection and resolution of a reduced version basic service set identifier collision

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CN1747375A (zh) * 2004-04-12 2006-03-15 三星电子株式会社 在无线通信系统中使两个终端同步的方法和系统
CN101047910A (zh) * 2006-03-27 2007-10-03 上海宇梦通信科技有限公司 一种双模手机中两种模式同步的方法
WO2016112306A1 (fr) * 2015-01-09 2016-07-14 Interdigital Patent Holdings, Inc. Transmission améliorée en couleur bss dans wlan (bss-cet)
WO2016136116A1 (fr) * 2015-02-27 2016-09-01 ソニー株式会社 Dispositif de traitement d'informations
US20160345258A1 (en) * 2015-05-22 2016-11-24 Qualcomm Incorporated Detection and resolution of a reduced version basic service set identifier collision

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