WO2015120577A1 - 数据传输处理方法及装置 - Google Patents
数据传输处理方法及装置 Download PDFInfo
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- WO2015120577A1 WO2015120577A1 PCT/CN2014/071974 CN2014071974W WO2015120577A1 WO 2015120577 A1 WO2015120577 A1 WO 2015120577A1 CN 2014071974 W CN2014071974 W CN 2014071974W WO 2015120577 A1 WO2015120577 A1 WO 2015120577A1
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- frequency resources
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- 238000003672 processing method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 35
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- 238000004891 communication Methods 0.000 description 10
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- 238000013468 resource allocation Methods 0.000 description 5
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/04—Scheduled or contention-free access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Definitions
- the embodiments of the present invention relate to communication technologies, and in particular, to a data transmission processing method and apparatus. Background technique
- the carrier sensing and channel reservation mechanism is adopted.
- a certain time of the channel is reserved by one station, other stations will not allow data transmission during this time.
- an access point AP
- AP access point
- only the access point can enjoy the time-frequency resource, and the non-associated neighbor site of the AP is in the No data is transmitted within the time-frequency resource. Therefore, in the prior art, there is a problem that data transmission is not efficient. Summary of the invention
- Embodiments of the present invention provide a data transmission processing method and apparatus for improving transmission efficiency of a system.
- an embodiment of the present invention provides a data transmission processing method, including:
- the first site successfully reserves time-frequency resources
- the first station allocates at least a part of the time-frequency resources of the time-frequency resource to the third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station A non-associated neighbor site for the first site.
- the first station allocates the at least part of the time-frequency resource of the time-frequency resource to the third site, including:
- the first station allocates time-frequency resources occupied by data transmission with the second station to the third station, where the second station is an associated station of the first station; a neighbor site of the second site; or,
- the first station allocates the remaining time-frequency resources to the third station, where the remaining time-frequency resources are when the first station allocates the time-frequency resource to the associated station of the first station. No time-frequency resources are used.
- the first station allocates time-frequency resources occupied by data transmission with the second station to the The third site, including:
- the first station sends scheduling signaling to the third station, where the scheduling signaling includes an indication that the third station can be used for data transmission to the second station by the first station.
- Information for transmitting data on time-frequency resources or,
- the first station sends scheduling signaling to the third station, where the scheduling signaling includes an uplink station that indicates that the third station can receive data sent by the second station at the first station.
- the first station allocates the remaining time-frequency resources to the third site, including: The first station sends scheduling signaling to the third station, where the scheduling signaling includes information indicating that the third station can perform data transmission in the remaining time-frequency resources.
- the first station sends the scheduling signaling to the third station, including: The first station sends the scheduling signaling to the third station by using a plurality of scheduling signaling sending periods set in a downlink period.
- the method further includes:
- the first site establishes a neighbor list, where the neighbor list includes a neighbor site of the first site.
- the first station allocates a time-frequency resource occupied by data transmission with the second station to the Before the third site, it also includes:
- an embodiment of the present invention provides a data transmission processing method, including:
- the third station acquires a time-frequency resource allocated by the first station to the third station, where the The allocated time-frequency resource is at least a part of the time-frequency resource of the time-frequency resource reserved by the first station; the third site is a non-associated neighbor site of the first site;
- the third station performs data transmission on the allocated time-frequency resource.
- the allocated time-frequency resource is at least a part of the time-frequency resource of the time-frequency resource reserved by the first station, and includes:
- the allocated time-frequency resource is a time-frequency resource occupied by the first station and the second station for data transmission, where the second site is an associated site of the first site; a neighbor site of the second site; or,
- the allocated time-frequency resource is the remaining time-frequency resource, where the remaining time-frequency resource is a time-frequency that is not used when the first station allocates the time-frequency resource to the associated site of the first site. Resources.
- the third station acquires a time-frequency resource allocated by the first station to the third station, where
- the allocated time-frequency resource is a time-frequency resource occupied by the first station and the second station for data transmission, and includes:
- the third station receives the scheduling signaling sent by the first station, where the scheduling signaling includes an indication that the third station can be used for data transmission to the second station by the first station.
- the third station receives the scheduling signaling sent by the first station, where the scheduling signaling includes an association station that indicates that the third station can receive the second station to send at the first station.
- the third station acquires a time-frequency resource allocated by the first station to the third station, where The allocated time-frequency resource is the remaining time-frequency resource, including:
- the third station receives the scheduling signaling sent by the first station, where the scheduling signaling includes information indicating that the third station can perform data transmission in the remaining time-frequency resources.
- the receiving, by the third station, the scheduling signaling sent by the first station includes: The third station receives scheduling signaling sent by the first station by using a plurality of scheduling signaling sending periods set in a downlink period.
- the third site is two access points
- the APs are not mutually a neighboring site of the first site in a scenario of a neighboring site, where the first site is any one of the two APs
- the third site includes :
- the third station notifies the associated information of the third station to the indication information in the scheduling signaling;
- the third station receives a schedule of an associated site of the third site.
- the third station receiving the scheduling of the associated site of the third site includes:
- the third station receives the scheduling of the associated site of the third station in a plurality of scheduling signaling sending periods set in the downlink period.
- an embodiment of the present invention provides a site, where the site is a first site, and the site includes:
- a reserved module configured to successfully reserve time-frequency resources
- An allocating module configured to allocate at least a part of the time-frequency resource of the time-frequency resource to the third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station A non-associated neighbor site for the first site.
- a first allocation unit configured to allocate time-frequency resources occupied by data transmission with the second station to the third station, where the second station is an associated station of the first station;
- the site is not a neighbor site of the second site; or,
- a second allocation unit configured to allocate the remaining time-frequency resources to the third station, where the remaining time-frequency resources are used by the first station to allocate the time-frequency to an associated station of the first station Time-frequency resources that are not used when resources are used.
- the first allocating unit is specifically configured to:
- the third station may perform data transmission information on the time-frequency resource occupied by the first station to perform data transmission to the second station; or
- the second allocation unit is configured to: send, to the third station, scheduling signaling, where The scheduling signaling includes information indicating that the third station can perform data transmission in the remaining time-frequency resources.
- the allocating module is specifically configured to: use multiple scheduling letters that are set in a downlink period The transmission period is caused to send the scheduling signaling to the third station.
- the station further includes: an establishing module, configured to: Establishing a neighbor list, where the neighbor list includes a neighbor site of the first site.
- the method may further include: an acquiring module, configured to acquire a neighbor list of the second site, where The neighbor list includes the neighbor site of the second site.
- the embodiment of the present invention provides a site, where the site is a third site, and the site includes:
- An acquiring module configured to acquire a time-frequency resource allocated by the first station to the third station, where the allocated time-frequency resource is at least a part of a time-frequency resource of the time-frequency resource reserved by the first station;
- the third site is a non-associated neighbor site of the first site;
- a transmission module configured to perform data transmission on the allocated time-frequency resource.
- the allocated time-frequency resource is at least a part of the time-frequency resource of the time-frequency resource reserved by the first station, and includes:
- the allocated time-frequency resource is a time-frequency resource occupied by the first station and the second station for data transmission, where the second site is an associated site of the first site; a neighbor site of the second site; or,
- the allocated time-frequency resource is the remaining time-frequency resource, where the remaining time-frequency resource is a time-frequency that is not used when the first station allocates the time-frequency resource to the associated site of the first site. Resources.
- the acquiring module when the allocated time-frequency resource is used for data transmission between the first site and the second site When the time-frequency resource is occupied, the acquiring module is specifically configured to:
- the scheduling signaling includes a time-frequency resource that is used by the third station to be used for data transmission by the first station to the second station.
- Information for data transmission or,
- the scheduling signaling includes an indication that the associated site of the third station can be used by the first station to receive data sent by the second station.
- the information about the data transmission is performed on the frequency resource, where the associated site of the third site is not a neighbor site of the first site.
- the acquiring module when the allocated time-frequency resource is the remaining time-frequency resource, the acquiring module is specific And the method is: receiving the scheduling signaling sent by the first station, where the scheduling signaling includes information indicating that the third station can perform data transmission in the remaining time-frequency resources.
- the acquiring module is specifically configured to: receive the first station by using in a downlink period The scheduling signaling sent by the multiple scheduling signaling transmission periods is set.
- the APs are not mutually a neighboring site of the first site in the scenario of the neighboring site, where the first site is any one of the two APs, and the third site further includes:
- a notification module configured to notify the associated site of the third site by using the indication information in the scheduling signaling
- a receiving module configured to receive a schedule of an associated site of the third site.
- the receiving module is specifically configured to: receive, by using, The scheduling of the associated site of the third site.
- the first station successfully reserves the time-frequency resource, and allocates at least a part of the time-frequency resource of the time-frequency resource to the third station, so that the third station is in the allocated time-frequency resource.
- the third site is a non-associated neighbor site of the first site, so that the third site may share the time-frequency resource reserved by the first site with the first site. Therefore, the transmission efficiency of the system is improved.
- Embodiment 1 is a schematic flowchart of Embodiment 1 of a data transmission processing method according to the present invention
- Embodiment 2 is a schematic flowchart of Embodiment 2 of a data transmission processing method according to the present invention
- FIG. 3 is a schematic diagram 1 of the station communication of the present invention.
- FIG. 4 is a schematic diagram 2 of the station communication of the present invention.
- FIG. 5 is a schematic diagram 1 of setting a scheduling channel
- 6 is a schematic diagram 2 of setting a scheduling channel
- FIG. 7 is a schematic flowchart of Embodiment 3 of a data transmission processing method according to the present invention.
- Embodiment 8 is a schematic flowchart of Embodiment 4 of a data transmission processing method according to the present invention.
- Embodiment 9 is a schematic structural diagram of Embodiment 1 of a station according to the present invention.
- Embodiment 2 of a station according to the present invention is a schematic structural diagram of Embodiment 2 of a station according to the present invention.
- FIG. 11 is a schematic structural diagram of Embodiment 3 of a station according to the present invention.
- FIG. 12 is a schematic structural diagram of Embodiment 4 of a station according to the present invention.
- the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
- the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- FIG. 1 is a schematic flowchart of a first embodiment of a data transmission processing method according to the present invention. As shown in FIG. 1, the method in this embodiment may include:
- Step 101 The first station successfully reserves time-frequency resources.
- Step 102 The first station allocates at least a part of time-frequency resources of the time-frequency resource to a third station, so that the third station performs data transmission on the allocated time-frequency resource, where
- the third site is a non-associated neighbor site of the first site.
- the solution proposed in the embodiment of the present invention is to perform primary link resource multiplexing based on a scheduling mechanism, where the scheduling mechanism refers to that all uplink and downlink resources in a basic service set (BSS) are connected.
- the access point (AP) is scheduled, and the station (Station, referred to as STA) performs data transmission and reception in the scheduled time-frequency resources.
- the first station successfully reserves a time-frequency resource through the contention channel, and the first station may be an AP.
- the specific process of competing channels and reserving time-frequency resources is not of interest in this patent, and mechanisms in existing standards may be reused, or other mechanisms may be used.
- the first station first listens to the channel, and after the channel is idle to reach the distributed coordination function interframe space (DIFS), generates a backoff random number. If the channel is idle until the backoff random number counts down to 0, then A station sends a Clear to Send (CTS-to-self) frame reserved channel, and the CTS-to-self frame contains a Duration field of the reserved channel duration. When other stations receive the CTS After the -to-self frame, no active transmission will be performed on the channel within the time indicated by the Duration field.
- DIFS distributed coordination function interframe space
- an AP that successfully reserves time-frequency resources will enjoy its own reserved time-frequency resources, that is, the AP.
- the self may be scheduled within the time-frequency resource and the associated STA of the AP may be scheduled.
- the first site that successfully competes to the channel schedules itself and the associated site of the first site within the time-frequency resource, and the first site will also At least a part of the time-frequency resource of the reserved time-frequency resource is allocated to the third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station is the first A non-associated neighbor site for the site.
- the at least part of the time-frequency resource may be a time-frequency resource occupied by data transmission by the first station and the second station, where the second site is an associated site of the first site, where the The third station is not the neighbor station of the second station, and may also be used when the first station allocates the reserved time-frequency resources for the associated station of the first station.
- Time-frequency resources (remaining time-frequency resources).
- the neighboring site of the first site refers to a site that can correctly receive data sent by the first site, and may be an access point (AP) or a non-access point site (STA), which includes The associated site of the first site also includes a non-associated site of the first site.
- the access point can only perform data communication with the associated site of the access point, and the non-associated site of the access point cannot perform data communication, but only allows specific signaling.
- Interaction such as the first station in the present invention sends scheduling signaling to the third station
- the non-access point site can only communicate with the associated site of the site, and the non-access The non-associated sites of the site of the point cannot communicate with the data, but only allow specific signaling interactions.
- the first station successfully reserves time-frequency resources, and allocates at least a part of the time-frequency resources of the time-frequency resources to the third station, so that the third station is at the time of the allocation.
- FIG. 2 is a schematic flowchart of a second embodiment of a data transmission processing method according to the present invention. As shown in FIG. 2, the method in this embodiment may include:
- Step 201 The first station successfully reserves time-frequency resources.
- Step 202 The first station allocates time-frequency resources occupied by data transmission with the second station to the third station, where the second station is an associated site of the first station, The third site is not a neighbor site of the second site.
- the first station allocates time-frequency resources occupied by data transmission with the second station to the third station, including:
- the first station sends scheduling signaling to the third station, where the scheduling signaling includes an indication that the third station can be used for data transmission to the second station by the first station.
- Information for transmitting data on time-frequency resources or,
- the first station sends scheduling signaling to the third station, where the scheduling signaling includes an uplink station that indicates that the third station can receive data sent by the second station at the first station.
- the second site is an associated site of the first site
- the third site is a non-associated neighbor site of the first site
- the third site is not a neighbor site of the second site, that is, the third site and the second site are mutually inaudible to each other. Therefore, the third site is an exposed site of the first site and the second site link.
- the data transmission by the first station and the second station includes two implementation manners, where the first implementation manner is that the first station performs downlink transmission, and the second implementation manner is The second site is sent upstream.
- the first station When the first station is to transmit downlink (that is, in a downlink period), the first station may perform data transmission by using the first station and the second station by sending scheduling signaling to the third station.
- the occupied time-frequency resource is allocated to the third station, where the scheduling signaling includes a time-frequency resource that is used by the third station to perform data transmission to the second station at the first station. Information on which data is sent.
- a scenario in which two APs are mutually neighboring sites and a scenario in which two APs are not mutually neighboring sites are included that is, two BSSs have overlapping regions, but any one of the two APs is not in another AP.
- the first site may correspond to the first AP
- the third site may correspond to the unassociated neighbor AP of the first AP in the scenario where the two APs are mutually neighboring sites;
- the third site may correspond to the unassociated STA of the first AP.
- FIG. 3 is a schematic diagram of a station communication according to the present invention.
- the first AP corresponds to an API (first site)
- the neighbor AP corresponds to AP2
- third The second site corresponds to the STA 11 , wherein the STA 11 is outside the coverage of the AP 2 (that is, the third site is not a neighbor site of the second site).
- the API may allocate the time-frequency resource for the data transmission by the STA1 to the AP2 for downlink transmission.
- the API may send a scheduling signaling to the AP2, where the scheduling is performed.
- the signaling includes information indicating that the AP2 can perform data transmission on the time-frequency resource occupied by the API to perform data transmission to the STA11.
- the AP2 can allocate the time-frequency in the API.
- the data is sent to the STA 22 on the resource. Further, in order for the AP2 to send data to the STA 22, the process does not affect the data transmission by the API to the STA 11.
- the STA 11 and the STA 22 are mutually inaudible.
- the resource allocation principle 1 is summarized according to the foregoing.
- the first station may allocate time-frequency resources occupied by data transmission to the second station to the third station for downlink transmission; if the location of the second station is in the overlapping area, the first A station may not allocate time-frequency resources occupied by data transmission to the second station to the third station.
- the scheduling signaling sent by the first station to the third station may be transmitted through an air interface, where the first station associates the neighbor AP (third station) with the first station.
- the STA of the BSS performs resource scheduling.
- the first AP corresponds to an API (first site), and the unassociated STA of the first AP corresponds to a STA31 (third site).
- the second site corresponds to the STA 11 , wherein the STA 11 is outside the coverage of the STA 31 (ie, the third site is not a neighbor site of the second site).
- the API may allocate the time-frequency resource for the data transmission to the STA 11 to the STA 31 for uplink transmission.
- the API may send a scheduling signaling to the STA 31, where the scheduling is performed.
- the signaling includes information indicating that the STA 31 can perform data transmission on the time-frequency resource occupied by the API to perform data transmission to the STA 11.
- the STA 31 notifies the indication information to the AP3. Therefore, the AP3 schedules the STA 31 according to the information of the sharable time-frequency resource sent by the STA 31, so that the STA 31 can send data to the AP3 on the allocated time-frequency resource.
- the manner in which the STA 31 notifies the association indication information to the associated AP3 may be reported by a public uplink time-frequency resource, or may be in another manner, which is not limited herein.
- the first station may perform data transmission by using the first station and the second station by sending scheduling signaling to the third station.
- the occupied time-frequency resource is allocated to the third station, where the scheduling signaling includes an area that indicates that the associated station of the third station can receive data sent by the second station at the first station.
- the information about the data transmission is performed on the time-frequency resource, where the associated site of the third site is not the neighbor site of the first site.
- the third site may be related to the first The associated sites of the three sites directly communicate data.
- a scenario in which two APs are mutually neighboring sites and a scenario in which two APs are not mutually neighboring sites are included that is, two BSSs have overlapping regions, but any one of the two APs is not in another AP.
- the first site may be a first AP
- the third site may be a non-associated neighbor AP of the first AP, where the third AP is a neighboring site.
- the associated site of the site may correspond to the associated STA of the neighboring AP; in a scenario where the two APs are not mutually neighboring sites, the third site may correspond to the unassociated STA of the first AP, and the third The associated site of the site may correspond to the associated AP of the non-associated STA.
- Figure 4 is a schematic diagram of the site communication of the present invention.
- the first AP corresponds to an API (first site)
- the neighbor AP corresponds to AP2 (third Sites, the associated STAs of the neighboring APs are corresponding to the STAs 22, and the second station is corresponding to the STAs 11, wherein the STAs 11 are outside the coverage of the AP2 (ie, the third site is not the neighbor of the second site) Site)
- the STA 22 is not within the coverage of the API (ie, the associated site of the third site is not a neighbor site of the first site).
- the API may allocate the time-frequency resource that the STA 11 sends to the API to the STA 22 for uplink transmission (that is, the AP2 receives the data sent by the STA 22), optionally, the The API may send a scheduling signaling to the AP2, where the scheduling signaling includes information indicating that the associated site of the AP2 may send data on the time-frequency resource occupied by the data received by the STA11 by the API, The associated site of the AP2 is not a neighboring site of the API. Further, the AP2 may schedule the STA 22 to perform data transmission on the allocated time-frequency resource by the API.
- the process of the STA 22 transmitting data to the AP2 does not affect the API to receive the data sent by the STA 11 , because the STA 22 is not in the coverage of the API.
- the resource allocation principle 2 is summarized according to the foregoing.
- the first station may allocate the time-frequency resource occupied by the data sent by the second station to the associated station of the third station for uplink transmission, and the third station
- the associated site is not in the overlapping area; if the location of the second site is in the overlapping area, the first station may not receive the time-frequency resource allocation occupied by the data sent by the second station. Give the associated site to the third site.
- the first site is to the third site
- the sent scheduling signaling may be transmitted through the air interface, which is equivalent to the first station using the neighboring AP (third station) as the STA of the BSS to which the first station belongs to perform resource scheduling.
- the neighboring AP third station
- the first AP corresponds to an API.
- the unassociated STA of the first AP is corresponding to the STA 31 (the third station), the associated site of the third site is the AP3, and the second site is the STA11, where the STA11 is Outside the coverage of the STA 31 (ie, the third site is not a neighbor site of the second site), the AP3 is not in the coverage of the API (ie, the associated site of the third site is not the The neighbor site of the first site).
- the API may allocate the time-frequency resource that the STA 11 sends to the API to the AP3 for downlink transmission (that is, the STA 31 may receive the data sent by the AP3), optionally
- the API may send a scheduling signaling to the STA 31, where the scheduling signaling includes the associated station AP3 indicating that the STA 31 can perform data on the time-frequency resource occupied by the API receiving the data sent by the STA11.
- Sending information that is, the STA 31 may receive data sent by the AP3), where the associated site of the third site is not a neighboring site of the API.
- the STA 31 notifies the AP3 of the scheduling indication information, so that the AP3 schedules the associated STA of the AP3 according to the information of the sharable time-frequency resources sent by the STA 31, such as the STA 31.
- the manner in which the STA 31 notifies the associated information to the associated AP3 may be reported by a public uplink time-frequency resource, or may be other manners, which is not limited herein.
- FIG. 5 is a schematic diagram of the configuration of the scheduling channel.
- the downlink and uplink time periods are generally scheduled in the beginning of the downlink period, but in the embodiment of the present invention, the two APs are neighbors.
- the scheduling time has ended, and the third site may not have the opportunity to obtain the shared resource.
- the STA of the BSS to which the third station belongs Assigned to the STA of the BSS to which the third station belongs. Therefore, according to the description of the above embodiments of the present invention, it is required in the embodiments of the present invention.
- FIG. 6 is a schematic diagram of the scheduling channel configuration.
- a scheduling signaling transmission period is set in the downlink period (corresponding to the scheduling channel in FIG. 6). If the AP performs scheduling in a certain scheduling signaling period, the subsequent scheduling period may be used for data transmission; if the AP misses a certain scheduling signaling period, it may also be scheduled in the next scheduling signaling period.
- the first station may send the scheduling signaling to the third station by using multiple scheduling signaling sending periods set in a downlink period.
- the AP may also perform scheduling in any downlink time period, but the scheduling mode requires all stations to maintain the listening state in the downlink time period until the scheduling signaling is received.
- the method further includes: the first station establishing a neighbor list, where the neighbor list includes The neighbor site of the first site.
- the first site may establish a neighbor list, and select the third site based on the neighbor list (the third site is a non-associated neighbor site of the first site), where And the neighbor list includes the AP and the STA that the first station can directly listen to, that is, the neighbor list that includes the first station in the neighbor list.
- the method further includes: obtaining, by the first station, a neighbor list of the second station, The neighbor list includes the neighbor site of the second site.
- the first station needs to obtain a neighbor list that is established by the second station, where the neighbor list includes the AP and the STA that the second station can directly monitor (the neighbor list includes the a neighboring site of the second site, in order to prevent the third station from performing data transmission on the allocated time-frequency resource to affect data transmission of the first site and the second site, the first site may be based on the a neighbor list of the first site and a neighbor list of the second site to learn the location of the second site and the third site, so that the first site selects a suitable third site (the third site is not And the neighboring site of the second site, and allocates time-frequency resources occupied by data transmission by the first site and the second site to the third site.
- the manner in which the first site obtains the neighbor list of the second site may include two achievable modes: passive monitoring and active request.
- the first station In the passive monitoring mode, the first station The point may be obtained by passively listening to a frame sent by the second station, such as a beacon frame, to obtain a neighbor list of the second station, and correspondingly, the second station may be in a neighbor list of the second station.
- the active request mode the first station may actively send a request frame and then receive the response of the second site when there is a change or periodically.
- the frame is configured to obtain the neighbor list information of the second site, and correspondingly, the second station may send the neighbor list of the second site according to the query of the first sending site.
- the first station successfully reserves time-frequency resources, and allocates time-frequency resources occupied by data transmission by the first station and the second station to the third station, so that the third station The station performs data transmission on the allocated time-frequency resource, where the third site is a non-associated neighbor site of the first site, so that the third site may share the same with the first site.
- the time-frequency resources reserved by the first station therefore, improve the transmission efficiency of the system.
- FIG. 7 is a schematic flowchart of a third embodiment of a data transmission processing method according to the present invention. As shown in FIG. 7, the method in this embodiment may include:
- Step 701 The first station successfully reserves time-frequency resources.
- Step 702 The first station allocates the remaining time-frequency resources to the third station, where the remaining time-frequency resources are allocated by the first station to an associated site of the first site. Time-frequency resources that are not used when time-frequency resources are used.
- the first station allocates the remaining time-frequency resources to the third station, where: the first station sends scheduling signaling to the third station, where the scheduling signaling includes Information indicating that the third station can perform data transmission within the remaining time-frequency resources.
- the first station allocates time-frequency resources occupied by data transmission with the second station to the third station
- the first station in the embodiment of the present invention Allocating the remaining time-frequency resources to the third station, where the remaining time-frequency resources are not used when the first station allocates the time-frequency resources reserved by the first station to the associated sites of the first station. Time-frequency resources.
- the third site is a non-associated neighboring site of the first site, such as a neighboring AP or a neighboring STA.
- the third station may perform data transmission on the allocated time-frequency resource. If the third station is an AP, the AP may directly directly address the allocated time-frequency resource.
- the associated STA of the AP performs scheduling; if the third station is a STA The STA may notify the associated AP of the STA by using the scheduling indication information, so that the associated AP schedules the STA.
- the manner in which the STA notifies the associated indication information to the associated AP may be reported by a public uplink time-frequency resource, or may be other manners, which is not limited herein.
- the first station may send the scheduling signaling to the third station by using multiple scheduling signaling sending periods set in a downlink period.
- the scheduling signaling sent by the first station to the third station may be transmitted through an air interface, where the first station performs the third station as an STA of the BSS to which the first station belongs.
- Resource Scheduling may be transmitted through an air interface, where the first station performs the third station as an STA of the BSS to which the first station belongs.
- the method further includes: the first station establishing a neighbor list, where the neighbor list includes The neighbor site of the first site.
- the first station may establish a neighbor list, and select the third station based on the neighbor list (the third station is a non-associated neighbor site of the first station).
- the first station successfully reserves the time-frequency resource, and allocates the time-frequency resource that is not used when the first station allocates the time-frequency resource to the associated station of the first station.
- the third station is configured to enable the third station to perform data transmission on the allocated time-frequency resource, where the third station is a non-associated neighbor station of the first station, and thus the third station The station can share the time-frequency resources reserved by the first station with the first station, thereby improving the transmission efficiency of the system.
- FIG. 8 is a schematic flowchart of Embodiment 4 of a data transmission processing method according to the present invention. As shown in FIG. 8, the method in this embodiment may include:
- Step 801 The third station acquires a time-frequency resource allocated by the first station to the third station, where the allocated time-frequency resource is at least a part of a time-frequency resource of the time-frequency resource reserved by the first station.
- the third site is a non-associated neighbor site of the first site.
- Step 802 The third station performs data transmission on the allocated time-frequency resource.
- the first site may be an AP
- the third site may be a non-associated neighbor AP of the first site, or may be a non-associated STA of the first site, where the third The station may acquire the time and frequency reserved by the first station allocated by the first station for the third station. At least a portion of the time-frequency resources in the source, such that the third station can perform data transmission on the allocated time-frequency resources.
- the allocated time-frequency resource may be a time-frequency resource occupied by data transmission by the first station and the second station, where the second site is an associated site of the first site;
- the third site is not the neighboring site of the second site, and may be the remaining time-frequency resource, where the remaining time-frequency resource is the first site that is the associated site of the first site.
- the third station acquires the first station to allocate the third station.
- the time-frequency resource includes: the third station receiving the scheduling signaling sent by the first station, where the scheduling signaling includes indicating that the third station can be at the first station to the The information that the second station performs data transmission on the time-frequency resource occupied by the data transmission; or
- the third station receives the scheduling signaling sent by the first station, where the scheduling signaling includes an association station that indicates that the third station can receive the second station to send at the first station.
- the data transmission by the first station and the second station includes two implementation manners, where the first implementation manner is that the first station performs downlink transmission, and the second implementation manner is The second site is sent upstream.
- a scenario in which two APs are mutually neighboring sites and a scenario in which two APs are not mutually neighboring sites are included that is, two BSSs have overlapping regions, but any one of the two APs is not in another AP.
- the first site may correspond to the first AP
- the third site may correspond to the unassociated neighbor AP of the first AP in the scenario where the two APs are mutually neighboring sites;
- the third site may correspond to the unassociated STA of the first AP.
- the third station may obtain the first station to allocate the third station by receiving the scheduling signaling sent by the first station.
- a frequency resource where the scheduling signaling includes information indicating that the third station can perform data transmission on a time-frequency resource occupied by the first station to perform data transmission to the second station.
- the process of the third site specifically acquiring the allocated time-frequency resource corresponds to the process shown in FIG. 3 in the foregoing embodiment 2, and details are not described herein again.
- the third station may obtain the first station to allocate the third station by receiving the scheduling signaling sent by the first station.
- the scheduling signaling includes an association station that indicates that the third station can perform data transmission on a time-frequency resource occupied by the first station receiving data sent by the second station (ie, The third station may receive information of data sent by the associated station, where the associated site of the third site is not a neighbor site of the first site.
- the associated sites of the third site may correspond to the associated STAs of the unassociated neighboring APs.
- the associated site of the third site may correspond to the associated AP of the non-associated STA.
- the third station may directly perform data communication with an associated site of the third site.
- the process of the third site specifically acquiring the allocated time-frequency resource corresponds to the process shown in FIG. 4 in the foregoing embodiment 2, and details are not described herein again.
- the third station acquiring the time-frequency resource allocated by the first station to the third station includes: receiving, by the third station The scheduling signaling sent by the first station, where the scheduling signaling includes information indicating that the third station can perform data transmission in the remaining time-frequency resources.
- the third site is a non-associated neighboring site of the first site, such as a neighboring AP or a neighboring STA.
- the third station may perform data transmission on the allocated time-frequency resource. If the third station is an AP, the AP may directly directly address the allocated time-frequency resource.
- the associated STA of the AP performs scheduling; if the third station is a STA, the STA may notify the associated AP of the STA by using the scheduling indication information, so that the associated AP performs scheduling on the STA.
- the manner in which the STA notifies the associated indication information to the associated AP may be reported by a public uplink time-frequency resource, or may be other manners, which is not limited herein.
- the method further includes: the third station notifying, by using the indication information in the scheduling signaling, the associated site of the third site, to enable the The associated station performs scheduling according to the indication information; the third station receives a schedule of the associated site of the third site.
- the third station is configured to send multiple scheduling signaling periods in the downlink period. Receiving the scheduling of the associated site of the third site.
- the receiving, by the third station, the scheduling signaling sent by the first station includes: sending, by the third station, the first station by using a plurality of scheduling signaling sending periods set in a downlink period Scheduling signaling.
- the third station may further receive scheduling signaling that is sent by the first station by using an air interface, where the first station considers the third station to be the STA of the BSS to which the first station belongs. Perform resource scheduling.
- the third station acquires at least a part of the time-frequency resources of the time-frequency resources reserved by the first station allocated by the first station to the third station, so as to perform on the allocated time-frequency resources.
- FIG. 9 is a schematic structural diagram of Embodiment 1 of a station according to the present invention.
- the site in the embodiment of the present invention may be the first site.
- the site 90 provided in this embodiment includes: a reservation module 901 and an allocation module 902.
- the reservation module 901 is configured to successfully reserve time-frequency resources.
- the allocating module 902 is configured to allocate at least a part of the time-frequency resources of the time-frequency resource to the third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station A non-associated neighbor site for the first site.
- the allocating module 902 includes:
- a first allocation unit configured to allocate time-frequency resources occupied by data transmission with the second station to the third station, where the second station is an associated station of the first station;
- the site is not a neighbor site of the second site; or,
- a second allocation unit configured to allocate the remaining time-frequency resources to the third station, where the remaining time-frequency resources are used by the first station to allocate the time-frequency to an associated station of the first station Time-frequency resources that are not used when resources are used.
- the first allocating unit is specifically configured to: send scheduling signaling to the third station, where the scheduling signaling includes indicating that the third station may be in the first station
- the second station performs information transmission on the time-frequency resource occupied by the data transmission;
- the associated site of the third site may receive information about data transmission on the time-frequency resource occupied by the data sent by the second site, where the associated site of the third site is not the first site. Neighboring site.
- the second allocating unit is specifically configured to: send scheduling signaling to the third station, where the scheduling signaling includes indicating that the third station may be in the remaining time-frequency resource Information for data transmission.
- the allocating module 902 is specifically configured to: send the scheduling signaling to the third station by using multiple scheduling signaling periods set in a downlink period.
- the site further includes:
- a setup module configured to establish a neighbor list, where the neighbor list includes a neighbor site of the first site.
- the site further includes:
- an obtaining module configured to acquire a neighbor list of the second site, where the neighbor list includes a neighbor site of the second site.
- the site of the present embodiment can be used in the technical solutions of the data transmission processing method from Embodiment 1 to Embodiment 3.
- the implementation principle and the technical effects are similar, and details are not described herein again.
- FIG. 10 is a schematic structural diagram of Embodiment 2 of a station according to the present invention.
- the site 100 in the embodiment of the present invention may be the first site.
- the site 100 provided in this embodiment includes a processor 1001 and a memory 1002.
- Site 100 can also include a transmitter 1003 and a receiver 1004.
- the transmitter 1003 and the receiver 1004 can be connected to the processor 1001.
- the transmitter 1003 is configured to transmit data or information
- the receiver 1004 is configured to receive data or information
- the memory 1002 is configured to store execution instructions.
- the processor 1001 communicates with the memory 1002, and the processor 1001 invokes The execution instructions in the memory 1002 are used to perform the operations in the first to third embodiments of the data transmission processing method described above.
- the site of the embodiment may be used to perform the technical solution of the data transmission processing method performed by the first site in the foregoing embodiment of the present invention.
- the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 11 is a schematic structural diagram of Embodiment 3 of a station according to the present invention.
- the site in the embodiment of the present invention may be a third site.
- the site 110 provided in this embodiment includes: an obtaining module 1101 and a transmitting module 1102.
- the obtaining module 1101 is configured to acquire a time-frequency resource allocated by the first station to the third station, where the allocated time-frequency resource is at least a part of a time-frequency resource of the time-frequency resource reserved by the first station.
- the third site is a non-associated neighbor site of the first site;
- the transmission module 1102 is configured to perform data transmission on the allocated time-frequency resource.
- the allocated time-frequency resource is at least a part of the time-frequency resource of the time-frequency resource reserved by the first station, and includes:
- the allocated time-frequency resource is a time-frequency resource occupied by the first station and the second station for data transmission, where the second site is an associated site of the first site; a neighbor site of the second site; or,
- the allocated time-frequency resource is the remaining time-frequency resource, where the remaining time-frequency resource is a time-frequency that is not used when the first station allocates the time-frequency resource to the associated site of the first site. Resources.
- the acquiring module 1101 is specifically configured to: receive the first site The scheduling signaling is sent, where the scheduling signaling includes information indicating that the third station can perform data transmission on a time-frequency resource occupied by the first station to perform data transmission to the second station; Or,
- the scheduling signaling includes an indication that the associated site of the third station can be used by the first station to receive data sent by the second station.
- the information about the data transmission is performed on the frequency resource, where the associated site of the third site is not a neighbor site of the first site.
- the acquiring module 1101 is specifically configured to: receive scheduling signaling sent by the first station, where the scheduling signaling There is included information indicating that the third station can perform data transmission within the remaining time-frequency resources.
- the acquiring module 1101 is specifically configured to: receive scheduling signaling sent by the first station by using multiple scheduling signaling sending periods set in a downlink time period.
- the third site further includes: a notification module, configured to notify the associated site of the third site by using the indication information in the scheduling signaling;
- a receiving module configured to receive a schedule of an associated site of the third site.
- the receiving module is specifically configured to: receive, by using a plurality of scheduling signaling sending periods set in a downlink period, a scheduling of an associated site of the third station.
- the site of the embodiment can be used in the technical solution of the fourth embodiment of the data transmission processing method, and the implementation principle and the technical effect are similar, and details are not described herein again.
- FIG. 12 is a schematic structural diagram of Embodiment 4 of a station according to the present invention.
- the site 120 in the embodiment of the present invention may be a third site.
- the site 120 provided in this embodiment includes a processor 1201 and a memory 1202.
- Site 120 can also include a transmitter 1203 and a receiver 1204.
- the transmitter 1203 and the receiver 1204 can be connected to the processor 1201.
- the transmitter 1203 is configured to send data or information
- the receiver 1204 is configured to receive data or information
- the memory 1202 is configured to store execution instructions.
- the processor 1201 communicates with the memory 1202, and the processor 1201 invokes
- the execution instruction in the memory 1202 is configured to perform the operations in the fourth embodiment of the data transmission processing method.
- the site of this embodiment may be used to perform the technical solution of the data transmission processing method performed by the third site in the foregoing embodiment of the present invention.
- the implementation principle and technical effects are similar, and details are not described herein again.
- the aforementioned program can be stored in a computer readable storage medium.
- the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
Abstract
Description
Claims
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KR1020167020578A KR101952223B1 (ko) | 2014-02-11 | 2014-02-11 | 데이터 전송 처리 방법 및 장치 |
EP19218442.2A EP3687257A1 (en) | 2014-02-11 | 2014-02-11 | Data transmission processing method and apparatus |
EP14882387.5A EP3086621B1 (en) | 2014-02-11 | 2014-02-11 | Data transmission processing method and apparatus |
JP2016551193A JP6410060B2 (ja) | 2014-02-11 | 2014-02-11 | データ送信処理方法および装置 |
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US15/233,591 US10602509B2 (en) | 2014-02-11 | 2016-08-10 | Data transmission processing method and apparatus |
US16/789,982 US11425709B2 (en) | 2014-02-11 | 2020-02-13 | Data transmission processing method and apparatus |
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US11425709B2 (en) | 2022-08-23 |
CN105981469A (zh) | 2016-09-28 |
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EP3086621A1 (en) | 2016-10-26 |
EP3086621A4 (en) | 2017-01-25 |
US20200187183A1 (en) | 2020-06-11 |
CN105981469B (zh) | 2020-04-21 |
KR20160103108A (ko) | 2016-08-31 |
EP3687257A1 (en) | 2020-07-29 |
JP6410060B2 (ja) | 2018-10-24 |
US10602509B2 (en) | 2020-03-24 |
US20160353423A1 (en) | 2016-12-01 |
EP3086621B1 (en) | 2020-01-22 |
CN111586764A (zh) | 2020-08-25 |
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