WO2025039225A1 - 通信方法、接入点设备、站点设备及通信设备 - Google Patents
通信方法、接入点设备、站点设备及通信设备 Download PDFInfo
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- WO2025039225A1 WO2025039225A1 PCT/CN2023/114493 CN2023114493W WO2025039225A1 WO 2025039225 A1 WO2025039225 A1 WO 2025039225A1 CN 2023114493 W CN2023114493 W CN 2023114493W WO 2025039225 A1 WO2025039225 A1 WO 2025039225A1
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- auxiliary channel
- sensing
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- listening period
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
Definitions
- the present disclosure relates to the field of communication technology, and in particular to a communication method, an access point device, a station device, and a communication device.
- Ultra High Reliability UHR
- WLAN Wireless Local Area Networks
- SNR signal-to-noise ratio
- the embodiments of the present disclosure provide a communication method, an access point device, a station device, and a communication device to further improve the communication mechanism of a WLAN device in an auxiliary channel.
- an embodiment of the present disclosure provides a communication method, the method comprising:
- the access point device determines a first radio frame on the auxiliary channel; wherein the first radio frame is used to request the station device to receive data on the auxiliary channel or to feed back buffer status information on the auxiliary channel;
- the first radio frame is sent on the auxiliary channel; wherein the listening period is pre-negotiated with the site device.
- an embodiment of the present disclosure further provides a communication method, the method comprising:
- the station device receives the first radio frame on the auxiliary channel at the time when the listening period arrives;
- the first radio frame is used to request the station device to receive data on the auxiliary channel or to feedback buffer status information on the auxiliary channel.
- the listening period is pre-negotiated with the site device.
- an embodiment of the present disclosure further provides a communication method, the method comprising:
- the station device determines a second radio frame on the auxiliary channel; wherein the second radio frame is used to request the access point device to receive data on the auxiliary channel;
- the second radio frame is sent on the auxiliary channel; wherein the listening period is pre-negotiated with the access point device.
- an embodiment of the present disclosure further provides a communication method, the method comprising:
- the access point device receives the second wireless frame on the auxiliary channel at the time when the listening period arrives;
- the second wireless frame is used to request the access point device to receive data on the auxiliary channel
- the listening period is pre-negotiated with the site device.
- an embodiment of the present disclosure further provides an access point device, the access point device comprising:
- a first determination module is configured to determine a first radio frame on an auxiliary channel; wherein the first radio frame is used to request a station device to receive data on the auxiliary channel or to feed back buffer status information on the auxiliary channel;
- the first sending module is used to send the first radio frame on the auxiliary channel when the listening period arrives; wherein the listening period is pre-negotiated with the site device.
- an embodiment of the present disclosure further provides a site device, the site device comprising:
- a first receiving module configured for the site device to receive a first radio frame on the auxiliary channel when the listening period arrives;
- the first radio frame is used to request the station device to receive data on the auxiliary channel or to feedback buffer status information on the auxiliary channel.
- the listening period is pre-negotiated with the site device.
- an embodiment of the present disclosure further provides a site device, the site device comprising:
- a second determining module is configured to send a fourth wireless frame on a primary channel; wherein the fourth wireless frame requests an access point device to send a data frame;
- the second sending module is used to send the second wireless frame on the auxiliary channel when the listening period arrives; wherein the listening period is pre-negotiated with the access point device.
- an embodiment of the present disclosure further provides an access point device, the access point device comprising:
- a second receiving module is used to receive a second wireless frame on the auxiliary channel when the listening period arrives;
- the second wireless frame is used to request the access point device to receive data on the auxiliary channel
- the listening period is pre-negotiated with the site device.
- an embodiment of the present disclosure further provides an access point device, including:
- processors one or more processors
- the access point device is used to execute the communication method described in the embodiment of the present disclosure.
- an embodiment of the present disclosure further provides a site device, including:
- processors one or more processors
- the site device is used to execute the communication method described in the embodiment of the present disclosure.
- an embodiment of the present disclosure further provides a communication device, including:
- processors one or more processors
- the communication device is used to execute the communication method described in the embodiment of the present disclosure.
- the embodiments of the present disclosure also provide a communication system, including an access point device and a site device; wherein the access point device is configured to implement the communication method described in the embodiments of the present disclosure, and the site device is configured to implement the communication method described in the embodiments of the present disclosure.
- the embodiments of the present disclosure also provide a storage medium storing instructions, which, when executed on a communication device, enable the communication device to execute the communication method described in the embodiments of the present disclosure, or execute the communication method described in the embodiments of the present disclosure.
- the access point device when the access point device senses that the main channel is busy, it switches to the auxiliary channel to determine the first radio frame, and sends the first radio frame on the auxiliary channel at the time when the listening period arrives, and requests the site device to send a data frame or cache information through the first radio frame.
- the listening period is a period for listening on the auxiliary channel that is pre-negotiated with the site device, and the listening period can be a period for the site device to listen to the auxiliary channel.
- the site device At the time when each listening period arrives, the site device will listen to the auxiliary channel and receive the first radio frame on the auxiliary channel to avoid the situation where the site device cannot receive the first radio frame, thereby realizing communication in the auxiliary channel, so as to improve the throughput of the communication system and maximize the utilization of channel resources.
- FIG1 is one of schematic diagrams of an example provided by an embodiment of the present disclosure.
- FIG2 is a schematic diagram of a communication system provided by an embodiment of the present disclosure.
- FIG3 is one of an exemplary interaction diagrams of a method provided according to an embodiment of the present disclosure.
- FIG4 is a second exemplary interaction diagram of a method provided according to an embodiment of the present disclosure.
- FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure.
- FIG6 is a second flow chart of the communication method provided in an embodiment of the present disclosure.
- FIG7 is a third flow chart of the communication method provided in the embodiment of the present disclosure.
- FIG8 is a fourth flow chart of the communication method provided in an embodiment of the present disclosure.
- FIG9 is a schematic diagram of a structure of an access point device according to an embodiment of the present disclosure.
- FIG10 is a schematic diagram of a structure of a site device according to an embodiment of the present disclosure.
- FIG11 is a second schematic diagram of the structure of a site device according to an embodiment of the present disclosure.
- FIG12 is a second schematic diagram of the structure of an access point device proposed in an embodiment of the present disclosure.
- FIG13 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure.
- FIG. 14 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.
- the embodiments of the present disclosure provide a communication method, an access point device, a station device, and a communication device.
- an embodiment of the present disclosure provides a communication method, the method comprising:
- the access point device determines a first radio frame on the auxiliary channel; wherein the first radio frame is used to request the station device to receive data on the auxiliary channel or to feed back buffer status information on the auxiliary channel;
- the first radio frame is sent on the auxiliary channel; wherein the listening period is pre-negotiated with the site device.
- the access point device sends the first wireless frame on the auxiliary channel, and the site device will listen to the auxiliary channel and receive the first wireless frame on the auxiliary channel, so as to avoid the situation where the site device cannot receive the first wireless frame, thereby realizing communication in the auxiliary channel, so as to improve the throughput of the communication system and maximize the utilization of channel resources.
- sending the first radio frame on the auxiliary channel at the arrival time of the listening period includes:
- the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening cycle arrives, the first radio frame is sent simultaneously on each of the auxiliary channels;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the first wireless frame is sent respectively on each of the auxiliary channels when the listening cycle of each of the auxiliary channels arrives.
- the first radio frame includes a request to send an RTS frame or a buffer status report polling BSRP frame.
- the first radio frame is used to request the station device to receive data on the auxiliary channel or to feed back buffer status information on the auxiliary channel.
- the duration of the first radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the situation that the communication on the auxiliary channel is not yet completed but the NAV of the primary channel is completed and the station device or the access point device re-accesses the primary channel is avoided, resulting in communication interruption or other situations on the auxiliary channel.
- the method further includes:
- the listening period information of the auxiliary channel is negotiated; wherein the listening period information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the process of communicating in the auxiliary channel is improved by negotiating the listening period.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each of the auxiliary channels is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- the communication process in the auxiliary channel is improved by negotiating the time information, interval information, etc. of the listening cycle.
- an embodiment of the present disclosure provides a communication method, the method comprising:
- the station device receives the first radio frame on the auxiliary channel at the time when the listening period arrives;
- the first radio frame is used to request the station device to receive data on the auxiliary channel or to feedback buffer status information on the auxiliary channel.
- the listening period is pre-negotiated with the site device.
- receiving the first A radio frame includes:
- the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening period arrives, the first radio frame is received simultaneously on each of the auxiliary channels;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and when the listening cycle of each auxiliary channel arrives, the first wireless frame is received respectively on each auxiliary channel.
- the first radio frame includes a request to send an RTS frame or a buffer status report polling BSRP frame.
- the duration of the first radio frame is less than or equal to the set duration of the primary channel network allocation vector NAV.
- the method further includes:
- the listening period information of the auxiliary channel is negotiated; wherein the listening period information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each of the auxiliary channels is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- an embodiment of the present disclosure provides a communication method, the method comprising:
- the station device determines a second radio frame on the auxiliary channel; wherein the second radio frame is used to request the access point device to receive data on the auxiliary channel;
- the second radio frame is sent on the auxiliary channel; wherein the listening period is pre-negotiated with the access point device.
- sending the second radio frame on the auxiliary channel at the arrival time of the listening period includes:
- the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening cycle arrives, the second radio frame is sent simultaneously on each of the auxiliary channels;
- the second radio frame includes a request to send an RTS frame.
- the duration of the second radio frame is less than or equal to the set duration of the primary channel network allocation vector NAV.
- the listening cycle information of the auxiliary channel is negotiated; wherein the listening cycle information uses the time synchronization function TSF parameters of the main channel as the time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each of the auxiliary channels is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- an embodiment of the present disclosure provides a communication method, the method comprising:
- the access point device receives the second wireless frame on the auxiliary channel at the time when the listening period arrives;
- the second wireless frame is used to request the access point device to receive data on the auxiliary channel
- the listening period is pre-negotiated with the site device.
- receiving the second radio frame on the auxiliary channel at the arrival time of the listening period includes:
- the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening period arrives, the second radio frame is received simultaneously on each of the auxiliary channels;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and at the time when the listening cycle of each auxiliary channel arrives, the second wireless frame is received respectively on each auxiliary channel.
- the second radio frame includes a request to send an RTS frame.
- the duration of the second radio frame is less than or equal to the set duration of the primary channel network allocation vector NAV.
- the listening cycle information of the auxiliary channel is negotiated; wherein, the listening cycle information uses the time synchronization function TSF parameters of the main channel as the time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each of the auxiliary channels is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- an embodiment of the present disclosure further provides an access point device, the access point device comprising at least one of a determination module and a sending module; wherein the access point device is used to execute the optional implementation method of the first aspect or the second aspect.
- an embodiment of the present disclosure further provides a site device, comprising: a first sending module; wherein the site device is used to execute an optional implementation method of the second aspect or the fourth aspect.
- an embodiment of the present disclosure further provides an access point device, including:
- processors one or more processors
- the access point device is used to execute the optional implementation of the first aspect and the third aspect.
- an embodiment of the present disclosure further provides a site device, including:
- processors one or more processors
- the site device is used to execute the optional implementation of the second aspect and the fourth aspect.
- an embodiment of the present disclosure further provides a communication system, comprising an access point device and a site device; wherein the access point device is configured to execute the optional implementation methods described in the first aspect and the second aspect, and the site device is configured to perform the optional implementation methods described in the third aspect and the fourth aspect.
- an embodiment of the present disclosure further provides a storage medium, which stores instructions.
- the communication device executes the optional implementation methods described in the first aspect, the second aspect, the third aspect, and the fourth aspect.
- an embodiment of the present disclosure proposes a program product.
- the communication device executes the method described in the optional implementation of the first aspect, the second aspect, the third aspect, and the fourth aspect.
- an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect, the second aspect, the third aspect, and the fourth aspect.
- an embodiment of the present disclosure provides a chip or a chip system.
- the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect, the second aspect, the third aspect, and the fourth aspect.
- the embodiments of the present disclosure provide a communication method, an access point device, a station device, and a communication device.
- the communication method and the signal transmission method, the wireless frame transmission method, and the like terms can be replaced with each other, and the information processing system, the communication system, and the like terms can be replaced with each other.
- each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
- a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
- the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
- plurality refers to two or more.
- "at least one of A and B", “A and/or B", “A in one case, B in another case”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.
- the recording method of "A or B” may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed).
- A A is executed independently of B
- B B is executed independently of A
- execution is selected from A and B (A and B are selectively executed).
- prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects.
- the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute redundant restrictions due to the use of prefixes. For example, if the description object is a "field”, the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”, and the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
- the description object is a "level”
- the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
- the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
- the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
- “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
- the terms “greater than”, “less than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, “above” and the like can be replaced with each other, and the terms “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, “below” and the like can be replaced with each other.
- devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, etc.
- the acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
- data, information, etc. may be obtained with the user's consent.
- each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, or any columns may also be implemented as an independent embodiment.
- FIG. 1 is a schematic diagram of a communication method according to an embodiment of the present disclosure.
- channels are usually divided into primary channels and secondary channels (or non-primary channels, or called secondary channels, non-primary channels);
- the primary channel is, for example, the main 20 MHz channel in Figure 1; wherein, the secondary channel may include one or more sub-channels, such as the 20 MHz secondary channel and the 40 MHz secondary channel in Figure 1.
- the main channel is in the OBSS busy state (OBSS interference), as shown in the T1 time period and the T2 time period in the figure, for example, it is occupied by other devices in the same OBSS as the WLAN, and other devices send physical layer protocol data units (PPDU) on the main channel, then the main channel is in the OBSS busy state.
- OBSS busy state OBSS interference
- PPDU physical layer protocol data units
- the main channel is in the OBSS busy state, in order to make full use of the channel resources, it can be switched to the auxiliary channel communication to improve the communication system throughput and maximize the channel resource utilization. For example, switch to the 20MHz auxiliary channel communication in the T1 time period, or switch to the 40MHz auxiliary channel communication in the T2 time period.
- the AP and the STA can send data or other information to each other.
- FIG. 2 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
- the communication system 100 includes a station device (Station, STA) 101 and an access point device (Access Point, AP) 102.
- STA station device
- AP access point device
- the site device 101 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication function.
- the wireless communication terminal is, for example, a mobile phone, a wearable device, an Internet of Things device that supports WiFi communication function, a car with WiFi communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and a wireless terminal device in a smart home (smart home), but is not limited thereto.
- the site device 101 may be a terminal device or a network device with a wireless fidelity (WiFi) chip.
- the site device 101 may support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited thereto.
- the access point device 102 can be an access point for a mobile terminal to enter a wired network.
- the AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.
- the AP can be a terminal device or a network device with a wireless fidelity chip.
- the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited to this.
- AP and STA may be devices supporting multiple connections, for example, may be respectively represented as a multi-connection access point device (Access Point Multi-Link Device, AP MLD) and a multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD); AP MLD may represent an access point supporting multi-connection communication functions, and non-AP MLD may represent a site supporting multi-connection communication functions.
- AP MLD may represent an access point supporting multi-connection communication functions
- non-AP MLD may represent a site supporting multi-connection communication functions.
- the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
- a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
- the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG2, or part of the subject, but are not limited thereto.
- the subjects shown in FIG2 are examples, and the communication system may include all or part of the subjects in FIG2, or may include other subjects other than FIG2, and the number and form of each subject are arbitrary, and each subject may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
- a wireless local area network such as a local area network using the 802.11 series of protocols.
- a basic service set (BSS) is a basic component of a WLAN.
- a BSS network is composed of station devices with certain associations within a specific coverage area.
- IBSS independent BSS
- Another more common case is that there is only one central station in the BSS network that is dedicated to managing the BSS, which is called an access point device, and all other STAs in the network are associated with it.
- STAs Other stations in the BSS network that are not central stations are called terminals, also called non-AP STAs, and terminals and non-AP STAs are collectively referred to as STAs.
- terminals also called non-AP STAs
- STAs terminals and non-AP STAs
- a STA cannot detect other STAs that are far away from it, and the two are hidden nodes of each other.
- FIG. 3 is one of schematic diagrams of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3 , the method includes:
- Step 301 The access point device determines a first radio frame on the auxiliary channel; wherein the first radio frame is used to request the site device to receive data on the auxiliary channel or to feed back buffer status information on the auxiliary channel.
- channels are usually divided into primary channels and secondary channels (or non-primary channels); among them, secondary channels can contain one or more sub-channels.
- secondary channels can contain one or more sub-channels.
- 20MHz is used as the basic bandwidth unit for division, when the channel bandwidth is 20MHz, there is only one primary channel with a bandwidth of 20MHz; when the channel bandwidth is greater than 20MHz, a channel with a bandwidth of 20MHz is included as the primary channel, and the remaining one or more 20MHz channels are secondary channels.
- the primary 20MHz channel is the common channel of operation for stations that are members of the basic service set. Stations in the BSS can access the channel through random competition on the primary 20MHz channel to obtain channel resources.
- the main channel In the process of random competition on the channel, if the main channel is in the OBSS (overlapping basic service set) busy state, for example, it is occupied by other devices in the same OBSS as the access point device 102, and other devices send physical layer protocol data units (PPDU) on the main channel, then the main channel is in the OBSS busy state. If the main channel is in the OBSS busy state, in order to make full use of channel resources, it can switch to the auxiliary channel to communicate with the site device 101, schedule the site device 101 to the auxiliary channel, and send and receive data with the site device 101, so as to improve the communication system throughput and maximize the channel resource utilization.
- OBSS overlapping basic service set
- the access point device 102 senses whether the main channel is busy. Usually, each station device on the network must listen to whether there is other data being transmitted on the channel before sending data, for example, through the energy detection (ED) mechanism at the physical layer and the NAV (Network Allocation Vector) setting mechanism at the MAC layer.
- ED energy detection
- NAV Network Allocation Vector
- the first wireless frame may include a request to send (RTS) frame or a buffer status report poll (BSRP) control frame, and the first wireless frame is used to request the site device to receive data on the auxiliary channel or to feedback cache status information on the auxiliary channel.
- RTS request to send
- BSRP buffer status report poll
- Step 302 Send the first radio frame on the auxiliary channel when the listening period arrives; wherein the listening period is pre-negotiated with the site device.
- the site device 101 may not be able to receive the first radio frame; for example, due to the existence of hidden nodes, other hidden nodes communicate with the site device 101, interfering with the site device 101's perception of the busy state of the main channel.
- the site device 101 may not be able to sense that the main channel is busy, and the site device 101 will not switch to the auxiliary channel, but will wait on the main channel for the access point device 102 to send the first radio frame, resulting in unnecessary device power consumption, resulting in an increase in data transmission delay, and may not meet the delay requirement.
- the access point device 102 when the access point device 102 senses that the main channel is busy, it switches to the auxiliary channel to determine the first radio frame, and sends the first radio frame on the auxiliary channel at the time when the listening cycle arrives, and requests the site device to send a data frame or cache information through the first radio frame.
- the listening cycle is a period for listening on the auxiliary channel that is pre-negotiated with the site device 101, and the listening cycle can be a period for the site device 101 to listen to the auxiliary channel.
- the site device 101 will listen to the auxiliary channel and receive the first radio frame on the auxiliary channel to avoid the situation where the site device 101 cannot receive the first radio frame, thereby realizing communication in the auxiliary channel, so as to improve the throughput of the communication system and maximize the utilization of channel resources.
- the arrival time of each listening cycle may be the start time of each listening cycle, such as a period before the start of a new listening cycle, such as the first N milliseconds or microseconds.
- step 302 step 3021 or step 3022 is executed respectively according to the perception mode of the auxiliary channel.
- Step 3021 The sensing mode of the auxiliary channel includes simultaneous sensing, and when the listening cycle arrives, the first wireless frame is sent simultaneously on each of the auxiliary channels.
- the simultaneous sensing means that the site equipment supports sensing on at least two of the auxiliary channels at the same time;
- the access point device 102 may simultaneously send the first radio frame on each auxiliary channel that supports simultaneous sensing.
- Step 3022 The perception mode of the auxiliary channel includes time-sharing perception, and the first wireless frame is sent on each auxiliary channel respectively when the listening cycle of each auxiliary channel arrives.
- the time-division sensing identifier of the site equipment supports: sensing on each auxiliary channel respectively.
- the point device 102 may send the first radio frame respectively at the time when the listening cycle of each auxiliary channel arrives; that is, for different auxiliary channels, at the time when the respective listening cycles arrive, the first radio frame is sent on the auxiliary channel.
- auxiliary channels there may be a time offset between the auxiliary channels.
- the time of each auxiliary channel can be based on the time synchronization function (TSF) parameters between the main channels.
- TSF time synchronization function
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each of the auxiliary channels is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each auxiliary channel is the same, that is, the starting time, ending time and duration of the listening period are all the same.
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different, so as to distinguish the listening periods of different auxiliary channels and avoid overlap between the listening periods of different auxiliary channels.
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening order of each auxiliary channel can be set; and the time intervals between adjacent listening cycles can be the same.
- the listening cycle of auxiliary channel 1 is listening cycle 1
- the listening cycle of auxiliary channel 2 is listening cycle 2
- the listening cycle of auxiliary channel 3 is listening cycle 3; wherein the time interval between listening cycle 1 and listening cycle 2 is the same as the time interval between listening cycle 2 and listening cycle 3.
- the time interval between adjacent listening cycles may be the time interval between the end time of a previous listening cycle and the start time of a next listening cycle.
- the duration of the first radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the communication duration on the auxiliary channel does not exceed the communication time on the main channel; therefore, the duration of the first wireless frame is less than or equal to the set duration of the network allocation vector (NAV) of the main channel to avoid the situation where the communication on the auxiliary channel has not yet ended, but the NAV of the main channel ends, and the site device 101 or the access point device 102 re-accesses the main channel, causing communication interruption on the auxiliary channel or other situations.
- NAV network allocation vector
- the listening period information of the auxiliary channel is negotiated; wherein the listening period information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the third wireless frame includes at least one of a beacon frame, a probe response frame, an association response frame or a newly defined wireless frame; for example, during the initial association process, the access point device 102 and the site device 101 negotiate the listening capability information of the access point device 102 through at least one of the aforementioned beacon frame, probe response frame, and association response frame; the newly defined wireless frame is a wireless frame sent after the initial association, and after the initial association, the listening period information of the access point device 102 is negotiated through the newly defined wireless frame.
- the listening cycle information uses the time synchronization function TSF parameters of the main channel as the time reference, and the listening cycle information can be carried in the association response frame, for example, the final executed listening cycle time is determined by the association response.
- step 301 may be implemented as an independent embodiment
- step 302 may be implemented as an independent embodiment
- step 3021 may be implemented as an independent embodiment
- step 3022 may be implemented as an independent embodiment
- the combination of step 301 and step 302 may be implemented as an independent embodiment
- the combination of step 301 and step 3021 may be implemented as an independent embodiment
- the combination of step 301 and step 3022 may be implemented as an independent embodiment, but is not limited thereto.
- FIG. 4 is one of schematic diagrams of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4 , the method includes:
- Step 401 The site device determines a second radio frame on the auxiliary channel; wherein the second radio frame is used to request the access point device to receive data on the auxiliary channel.
- channels are usually divided into primary channels and secondary channels (or non-primary channels); a secondary channel can contain one or more sub-channels.
- a secondary channel can contain one or more sub-channels.
- the basic bandwidth unit is 20MHz
- the channel bandwidth is 20MHz
- the channel bandwidth is greater than 20MHz
- the remaining one or more 20MHz channels are secondary channels.
- the main 20 MHz channel is the common channel of operation for stations that are members of the basic service set in a BSS. Stations in the BSS can compete randomly on the main 20 MHz channel to seize channel resources.
- the main channel In the process of random competition on the channel, if the main channel is in the OBSS busy state, for example, it is occupied by other devices in the same OBSS as the access point device 102, and other devices send physical layer protocol data units (PPDU) on the main channel, then the main channel is in the OBSS busy state. If the main channel is in the OBSS busy state, in order to make full use of channel resources, it can switch to the auxiliary channel to communicate with the site device 101, schedule the site device 101 to the auxiliary channel, and send and receive data with the site device 101, so as to improve the communication system throughput and maximize the channel resource utilization.
- PPDU physical layer protocol data units
- each station device on the network must listen to whether there is other data being transmitted on the channel before sending data, for example, through an energy detection (ED) mechanism.
- the station device 101 determines and sends a second wireless frame on the auxiliary channel, and requests the access point device 102 to send a data frame through the second wireless frame.
- ED energy detection
- the second wireless frame may include a request to send (RTS) frame.
- RTS request to send
- Step 402 Send the second radio frame on the auxiliary channel when the listening period arrives; wherein the listening period is pre-negotiated with the access point device.
- the site device 101 may not be able to receive the second radio frame; for example, due to the existence of hidden nodes, other hidden nodes communicate with the site device 101, interfering with the site device 101's perception of the busy state of the primary channel.
- the site device 101 may not be able to sense that the primary channel is busy, and the site device 101 will not switch to the auxiliary channel, but will wait on the primary channel for the access point device 102 to send the second radio frame, resulting in unnecessary device power consumption, resulting in an increase in data transmission delay, and may not meet the delay requirement.
- the site device 101 sends the second radio frame on the auxiliary channel at the time of each listening cycle, and requests the access point device to send a data frame through the second radio frame.
- the listening cycle is pre-negotiated with the site device 101, and the listening cycle can be a cycle for the site device 101 to listen to the auxiliary channel.
- the site device 101 will listen to the auxiliary channel and receive the second radio frame on the auxiliary channel to avoid the situation where the site device 101 cannot receive the second radio frame, thereby realizing communication in the auxiliary channel, so as to improve the throughput of the communication system and maximize the utilization of channel resources.
- the arrival time of each listening cycle may be the start time of each listening cycle, such as a period of time before the start of a new listening cycle, such as the first N milliseconds.
- step 402 step 4021 or step 4022 is executed respectively according to the perception mode of the auxiliary channel.
- Step 4021 The sensing mode of the auxiliary channel includes simultaneous sensing, and when the listening cycle arrives, the second wireless frame is sent simultaneously on each of the auxiliary channels.
- the simultaneous sensing means that the site device 101 supports sensing on at least two of the auxiliary channels at the same time;
- the site device 101 may simultaneously send the second radio frame on each auxiliary channel supporting simultaneous sensing.
- Step 4022 The perception mode of the auxiliary channel includes time-sharing perception, and the second wireless frame is sent on each auxiliary channel respectively when the listening cycle of each auxiliary channel arrives.
- the time-division sensing indicates that the site device supports: sensing on each auxiliary channel respectively.
- the site device 101 can send the second radio frame at the time when the listening cycle of each auxiliary channel arrives; that is, for different auxiliary channels, at the time when the respective listening cycles arrive, the second radio frame is sent on the auxiliary channel.
- auxiliary channels there may be a time offset between the auxiliary channels.
- the time of each auxiliary channel can be based on the time synchronization function (TSF) parameters between the main channels.
- TSF time synchronization function
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each of the auxiliary channels is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each auxiliary channel is the same, that is, the starting time, ending time and duration of the listening period are all the same.
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different, so as to distinguish the listening periods of different auxiliary channels and avoid overlap between the listening periods of different auxiliary channels.
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening order of each auxiliary channel can be set; and the time intervals between adjacent listening cycles can be the same.
- the listening cycle of auxiliary channel 1 is listening cycle 1
- the listening cycle of auxiliary channel 2 is listening cycle 2
- the listening cycle of auxiliary channel 3 is listening cycle 3; wherein the time interval between listening cycle 1 and listening cycle 2 is the same as the time interval between listening cycle 2 and listening cycle 3.
- the time interval between adjacent listening cycles may be the time interval between the end time of a previous listening cycle and the start time of a next listening cycle.
- the duration of the second radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the communication duration on the auxiliary channel does not exceed the communication time on the main channel; therefore, the duration of the second wireless frame is less than or equal to the set duration of the network allocation vector (NAV) of the main channel to avoid the situation where the communication on the auxiliary channel has not yet ended, but the NAV of the main channel ends, and the site device 101 or the access point device 102 re-accesses the main channel, causing communication interruption on the auxiliary channel or other situations.
- NAV network allocation vector
- the listening period information of the auxiliary channel is negotiated; wherein the listening period information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the third wireless frame includes at least one of a probe request frame, an association request frame or a newly defined wireless frame; for example, during the initial association process, the access point device 102 and the site device 101 negotiate the listening capability information of the access point device 102 through at least one of the aforementioned probe response frame and association response frame; the newly defined wireless frame is a wireless frame sent after the initial association, and after the initial association, the listening period information of the access point device 102 is negotiated through the newly defined wireless frame.
- the listening cycle information uses the time synchronization function TSF parameters of the main channel as the time reference, and the listening cycle information can be carried in the association response frame, for example, the final executed listening cycle time is determined by the association response.
- step 401 may be implemented as an independent embodiment
- step 402 may be implemented as an independent embodiment
- step 4021 may be implemented as an independent embodiment
- step 4022 may be implemented as an independent embodiment
- the combination of step 401 and step 402 may be implemented as an independent embodiment
- the combination of step 401 and step 4021 may be implemented as an independent embodiment
- the combination of step 401 and step 4022 may be implemented as an independent embodiment, but is not limited thereto.
- the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
- terms such as “moment”, “time point”, “time”, and “time position” can be interchangeable, and terms such as “duration”, “period”, “time window”, “window”, and “time” can be interchangeable.
- wireless access scheme and waveform may be used interchangeably.
- terms such as “certain”, “preset”, “preset”, “set”, “indicated”, “some”, “any”, and “first” can be interchangeable, and "specific A”, “preset A”, “preset A”, “set A”, “indicated A”, “some A”, “any A”, and “first A” can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.
- the determination or judgment can be performed by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited to this.
- not expecting to receive can be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on the data after receiving the data; "not expecting to send” can be interpreted as not sending, or as sending but not expecting the recipient to respond to the sent content.
- FIG. 5 is one of the flowchart diagrams of the communication method according to the embodiment of the present disclosure.
- the above method may be applied to an access point device 102, and the above method includes:
- Step 501 The access point device determines a first radio frame on the auxiliary channel; wherein the first radio frame is used to request the station device to receive data on the auxiliary channel or to feed back buffer status information on the auxiliary channel;
- Step 502 Send the first radio frame on the auxiliary channel when the listening period arrives; wherein the listening period is pre-negotiated with the site device.
- step 502 includes:
- Step 5021 sending the first radio frame on the auxiliary channel at the time when the listening cycle arrives, includes:
- the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening cycle arrives, the first radio frame is sent simultaneously on each of the auxiliary channels;
- Step 5022 The perception mode of the auxiliary channel includes time-sharing perception, and the first wireless frame is sent on each auxiliary channel respectively when the listening cycle of each auxiliary channel arrives.
- the duration of the first radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the listening cycle information of the auxiliary channel is negotiated; wherein the listening cycle information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each auxiliary channel is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- step 501 may be implemented as an independent embodiment
- step 502 may be implemented as an independent embodiment
- step 5021 may be implemented as an independent embodiment
- step 5022 may be implemented as an independent embodiment
- the combination of step 501 and step 502 may be implemented as an independent embodiment
- the combination of step 501 and step 5021 may be implemented as an independent embodiment
- the combination of step 501 and step 5022 may be implemented as an independent embodiment, but is not limited thereto.
- FIG. 6 is a second flowchart of a communication method according to an embodiment of the present disclosure.
- the above method may be applied to a site device 101, and the above method includes:
- Step 601 The station device receives a first radio frame on the auxiliary channel at the time when the listening cycle arrives.
- the first radio frame is used to request the station device to receive data on the auxiliary channel or to feedback buffer status information on the auxiliary channel.
- the listening period is pre-negotiated with the site device.
- step 601 includes:
- Step 6011 the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening cycle arrives, the first radio frame is received simultaneously on each of the auxiliary channels;
- Step 6012 The perception mode of the auxiliary channel includes time-sharing perception, and when the listening cycle of each auxiliary channel arrives, the first wireless frame is received on each auxiliary channel respectively.
- the first wireless frame includes a request to send an RTS frame or a buffer status report polling BSRP frame.
- the duration of the first radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the method further includes:
- the listening period information of the auxiliary channel is negotiated; wherein the listening period information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each auxiliary channel is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- step 601 may be implemented as an independent embodiment
- step 6011 may be implemented as an independent embodiment
- step 6012 may be implemented as an independent embodiment, but is not limited thereto.
- FIG. 7 is a third flowchart of a communication method according to an embodiment of the present disclosure.
- the above method may be applied to a site device 101, and the above method includes:
- Step 701 The station device determines a second radio frame on the auxiliary channel; wherein the second radio frame is used to request the access point device to receive data on the auxiliary channel;
- Step 702 Send the second radio frame on the auxiliary channel when the listening period arrives; wherein the listening period is pre-negotiated with the access point device.
- step 702 includes:
- Step 7021 The sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening cycle arrives, the second radio frame is sent simultaneously on each of the auxiliary channels;
- Step 7022 The perception mode of the auxiliary channel includes time-sharing perception, and the second wireless frame is sent on each auxiliary channel respectively when the listening cycle of each auxiliary channel arrives.
- the second wireless frame includes a request to send an RTS frame.
- the duration of the second radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the listening cycle information of the auxiliary channel is negotiated; wherein the listening cycle information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each auxiliary channel is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- step 701 may be implemented as an independent embodiment
- step 702 may be implemented as an independent embodiment
- step 7021 may be implemented as an independent embodiment
- step 7022 may be implemented as an independent embodiment
- the combination of step 701 and step 702 may be implemented as an independent embodiment
- the combination of step 701 and step 7021 may be implemented as an independent embodiment
- the combination of step 701 and step 7022 may be implemented as an independent embodiment, but is not limited thereto.
- FIG. 8 is a second flowchart of a communication method according to an embodiment of the present disclosure.
- the above method may be applied to an access point device, and the above method includes:
- Step 801 the access point device receives a second wireless frame on the auxiliary channel at the time when the listening cycle arrives;
- the second wireless frame is used to request the access point device to receive data on the auxiliary channel
- the listening period is pre-negotiated with the site device.
- step 801 includes:
- Step 8011 the sensing mode of the auxiliary channel includes simultaneous sensing, and at the time when the listening cycle arrives, the second radio frame is received simultaneously on each of the auxiliary channels;
- Step 8012 The perception mode of the auxiliary channel includes time-sharing perception, and when the listening cycle of each auxiliary channel arrives, the second wireless frame is received on each auxiliary channel respectively.
- the second wireless frame includes a request to send an RTS frame.
- the duration of the second radio frame is less than or equal to a set duration of a primary channel network allocation vector NAV.
- the listening cycle information of the auxiliary channel is negotiated; wherein the listening cycle information uses the time synchronization function TSF parameter of the primary channel as a time reference.
- the sensing mode of the auxiliary channel includes simultaneous sensing, and the listening period of each auxiliary channel is the same;
- the sensing mode of the auxiliary channel includes time-sharing sensing, and the listening period of each auxiliary channel is different;
- the sensing mode of the auxiliary channel includes time-division sensing, and at least two adjacent sensing cycles in sensing order have the same interval.
- step 801 may be implemented as an independent embodiment
- step 8011 may be implemented as an independent embodiment
- step 8012 may be implemented as an independent embodiment, but is not limited thereto.
- the embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods.
- a device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.
- a network device such as an access network device, a core network function node, a core network device, etc.
- the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
- the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, instructions are stored in the memory, and the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
- CPU central processing unit
- microprocessor a microprocessor
- the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
- the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
- the processor is a circuit with signal processing capability.
- the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP), etc.; in another implementation, the processor may implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
- ASIC application-specific integrated circuit
- PLD programmable logic device
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Abstract
本公开实施例涉及一种通信方法、接入点设备、站点设备及通信设备。所述通信方法包括:接入点设备在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;在每个侦听周期到达的时刻,站点设备将会侦听辅助信道,并在辅助信道接收所述第一无线帧,避免出现站点设备无法接收到第一无线帧的情况,进而实现在辅助信道中进行通信,以提高通信系统吞吐量,实现信道资源利用最大化。
Description
本公开涉及通信技术领域,尤其涉及一种通信方法、接入点设备、站点设备及通信设备。
目前,Wi-Fi技术所研究的内容例如超高可靠性(Ultra High Reliability,UHR),其愿景为提高无线局域网(Wireless Local Area Networks,WLAN)连接的可靠性、减少延迟、提高可管理性、在不同信噪比(Signal to Noise Ratio,SNR)级别下增加吞吐量并降低设备级功耗等。
在UHR中,为了能够充分利用信道资源,支持WLAN设备在辅助信道通信,需要进一步完善WLAN设备在辅助信道通信的机制,以满足UHR的传输需求。
发明内容
本公开实施例提供了一种通信方法、接入点设备、站点设备及通信设备,以进一步完善WLAN设备在辅助信道通信的机制。
一方面,本公开实施例提供了一种通信方法,所述方法包括:
接入点设备在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;
在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
另一方面,本公开实施例还提供了一种通信方法,所述方法包括:
站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;
其中,所述第一无线帧用于请求站点设备在辅助信道接收数据或在辅助信道反馈缓存状态信息
所述侦听周期为与所述站点设备预先协商的。
另一方面,本公开实施例还提供了一种通信方法,所述方法包括:
站点设备在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
另一方面,本公开实施例还提供了一种通信方法,所述方法包括:
接入点设备在侦听周期到达时刻,在辅助信道接收第二无线帧;
其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
所述侦听周期为与所述站点设备预先协商的。
另一方面,本公开实施例还提供了一种接入点设备,所述接入点设备包括:
第一确定模块,用于在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;
第一发送模块,用于在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
另一方面,本公开实施例还提供了一种站点设备,所述站点设备包括:
第一接收模块,用于站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;
其中,所述第一无线帧用于请求站点设备在辅助信道接收数据或在辅助信道反馈缓存状态信息
所述侦听周期为与所述站点设备预先协商的。
另一方面,本公开实施例还提供了一种站点设备,所述站点设备包括:
第二确定模块,用于主信道发送第四无线帧;其中,所述第四无线帧请求接入点设备发送数据帧;
第二发送模块,用于在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
另一方面,本公开实施例还提供了一种接入点设备,所述接入点设备包括:
第二接收模块,用于在侦听周期到达时刻,在辅助信道接收第二无线帧;
其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
所述侦听周期为与所述站点设备预先协商的。
另一方面,本公开实施例还提供了一种接入点设备,包括:
一个或多个处理器;
其中,所述接入点设备用于执行实现本公开实施例中所述的通信方法。
另一方面,本公开实施例还提供了一种站点设备,包括:
一个或多个处理器;
其中,所述站点设备用于执行实现本公开实施例中所述的通信方法。
另一方面,本公开实施例还提供了一种通信设备,包括:
一个或多个处理器;
其中,所述通信设备用于执行实现本公开实施例中所述的通信方法。
本公开实施例还提供了一种通信系统,包括接入点设备、站点设备;其中,所述接入点设备被配置为实现本公开实施例中所述的通信方法,所述站点设备被配置为实现本公开实施例中所述的通信方法。
本公开实施例还提供了一种存储介质,所述存储介质存储有指令,当所述指令在通信设备上运行时,使得所述通信设备执行如本公开实施例中所述的通信方法,或执行如本公开实施例中所述的通信方法。
本公开实施例中,接入点设备感知主信道繁忙,则切换到辅助信道确定第一无线帧,并在在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧,通过所述第一无线帧请求站点设备发送数据帧或缓存信息。而所述侦听周期为与所述站点设备预先协商的在辅助信道进行侦听的周期,所述侦听周期可以为站点设备侦听辅助信道的周期。在每个侦听周期到达的时刻,站点设备将会侦听辅助信道,并在辅助信道接收所述第一无线帧,避免出现站点设备无法接收到第一无线帧的情况,进而实现在辅助信道中进行通信,以提高通信系统吞吐量,实现信道资源利用最大化。
本公开实施例附加的方面和优点将在下面的描述中部分给出,这些将从下面的描述中变得明显,或通过本公开的实践了解到。
为了更清楚地说明本公开实施例中的技术方案,以下对实施例描述所需的附图进行介绍,以下附图仅仅是本公开的一些实施例,不对本公开的保护范围造成具体限制。
图1为本公开实施例提供的示例的示意图之一;
图2为本公开实施例提供的通信系统的示意图;
图3为根据本公开实施例提供的方法的一个示例性交互示意图之一;
图4为根据本公开实施例提供的方法的一个示例性交互示意图之二;
图5为本公开实施例提供的通信方法的流程示意图之一;
图6为本公开实施例提供的通信方法的流程示意图之二;
图7为本公开实施例提供的通信方法的流程示意图之三;
图8为本公开实施例提供的通信方法的流程示意图之四;
图9为本公开实施例提出的接入点设备的结构示意图之一;
图10为本公开实施例提出的站点设备的结构示意图之一;
图11为本公开实施例提出的站点设备的结构示意图之二;
图12为本公开实施例提出的接入点设备的结构示意图之二;
图13为本公开实施例提出的终端的结构示意图;
图14为本公开实施例提出的芯片的结构示意图。
本公开实施例提出了一种通信方法、接入点设备、站点设备及通信设备。
第一方面,本公开实施例提出了一种通信方法,所述方法包括:
接入点设备在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;
在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
在上述实施例中,在每个侦听周期到达的时刻,接入点设备在所述辅助信道发送所述第一无线帧,站点设备将会侦听辅助信道,并在辅助信道接收所述第一无线帧,避免出现站点设备无法接收到第一无线帧的情况,进而实现在辅助信道中进行通信,以提高通信系统吞吐量,实现信道资源利用最大化。
结合第一方面的一些实施例,在一些实施例中,所述在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧,包括:
所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第一无线帧;
或
所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第一无线帧。
在上述实施例中,对于分时感知和同时感知,分别执行不同的发送操作,避免出现站点设备无法接收到第一无线帧的情况。
结合第一方面的一些实施例,在一些实施例中,所述第一无线帧包括请求发送RTS帧或缓冲区状态报告轮询BSRP帧。
在上述实施例中,通过第一无线帧请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息。
结合第一方面的一些实施例,在一些实施例中,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
在上述实施例中,避免出现在辅助信道的通信尚未结束,而主信道的NAV结束,站点设备或接入点设备重新接入主信道,造成在辅助信道的通信中断或其他情况。
结合第一方面的一些实施例,在一些实施例中,所述方法还包括:
在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
在上述实施例中,通过协商侦听周期,完善在辅助信道中进行通信的过程。
结合第一方面的一些实施例,在一些实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
在上述实施例中,通过协商侦听周期的时间信息、间隔信息等,完善在辅助信道中进行通信的过程。
第二方面,本公开实施例提出了一种通信方法,所述方法包括:
站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;
其中,所述第一无线帧用于请求站点设备在辅助信道接收数据或在辅助信道反馈缓存状态信息
所述侦听周期为与所述站点设备预先协商的。
结合第二方面的一些实施例,在一些实施例中,所述在侦听周期到达时刻,在辅助信道接收第
一无线帧,包括:
所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时接收所述第一无线帧;
或
所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别接收所述第一无线帧。
结合第二方面的一些实施例,在一些实施例中,所述第一无线帧包括请求发送RTS帧或缓冲区状态报告轮询BSRP帧。
结合第二方面的一些实施例,在一些实施例中,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
结合第二方面的一些实施例,在一些实施例中,所述方法还包括:
在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
结合第二方面的一些实施例,在一些实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
第三方面,本公开实施例提出了一种通信方法,所述方法包括:
站点设备在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
结合第三方面的一些实施例,在一些实施例中,所述在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧,包括:
所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第二无线帧;
或
所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第二无线帧。
结合第三方面的一些实施例,在一些实施例中,所述第二无线帧包括请求发送RTS帧。
结合第三方面的一些实施例,在一些实施例中,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
结合第三方面的一些实施例,在一些实施例中,在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
结合第三方面的一些实施例,在一些实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
第四方面,本公开实施例提出了一种通信方法,所述方法包括:
接入点设备在侦听周期到达时刻,在辅助信道接收第二无线帧;
其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
所述侦听周期为与所述站点设备预先协商的。
结合第四方面的一些实施例,在一些实施例中,所述在侦听周期到达时刻,在辅助信道接收第二无线帧,包括:
所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时接收所述第二无线帧;
或
所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别接收所述第二无线帧。
结合第四方面的一些实施例,在一些实施例中,所述第二无线帧包括请求发送RTS帧。
结合第四方面的一些实施例,在一些实施例中,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
结合第四方面的一些实施例,在一些实施例中,在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
结合第四方面的一些实施例,在一些实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
第五方面,本公开实施例还提供了一种接入点设备,上述接入点设备包括确定模块、发送模块中的至少一者;其中,上述接入点设备用于执行第一方面或第二方面的可选实现方式。
第六方面,本公开实施例还提供了一种站点设备,包括:第一发送模块;其中,上述站点设备用于执行第二方面或第四方面的可选实现方式。
第七方面,本公开实施例还提供了一种接入点设备,包括:
一个或多个处理器;
其中,所述接入点设备用于执行第一方面、第三方面的可选实现方式。
第八方面,本公开实施例还提供了一种站点设备,包括:
一个或多个处理器;
其中,所述站点设备用于执行第二方面、第四方面的可选实现方式。
第九方面,本公开实施例还提供了一种通信系统,包括接入点设备、站点设备;其中,所述接入点设备被配置为执行如第一方面、第二方面所述的可选实现方式,所述站点设备被配置为如第三方面、第四方面所述的可选实现方式。
第十方面,本公开实施例还提供了一种存储介质,所述存储介质存储有指令,当所述指令在通信设备上运行时,使得所述通信设备执行如第一方面、第二方面、第三方面、第四方面所述的可选实现方式。
第十一方面,本公开实施例提出了程序产品,上述程序产品被通信设备执行时,使得上述通信设备执行如第一方面、第二方面、第三方面、第四方面的可选实现方式所描述的方法。
第十二方面,本公开实施例提出了计算机程序,当其在计算机上运行时,使得计算机执行如第一方面、第二方面、第三方面、第四方面的可选实现方式所描述的方法。
第十三方面,本公开实施例提供了一种芯片或芯片系统。该芯片或芯片系统包括处理电路,被配置为执行根据上述第一方面、第二方面、第三方面、第四方面的可选实现方式所描述的方法。
可以理解地,上述接入点设备、站点设备、通信系统、存储介质、程序产品、计算机程序、芯
片或芯片系统均用于执行本公开实施例所提出的方法。因此,其所能达到的有益效果可以参考对应方法中的有益效果,此处不再赘述。
本公开实施例提出了通信方法、接入点设备、站点设备及通信设备。在一些实施例中,通信方法与信号发送方法、无线帧发送方法等术语可以相互替换,信息处理系统、通信系统等术语可以相互替换。
本公开实施例并非穷举,仅为部分实施例的示意,不作为对本公开保护范围的具体限制。在不矛盾的情况下,某一实施例中的每个步骤均可以作为独立实施例来实施,且各步骤之间可以任意组合,例如,在某一实施例中去除部分步骤后的方案也可以作为独立实施例来实施,且在某一实施例中各步骤的顺序可以任意交换,另外,某一实施例中的可选实现方式可以任意组合;此外,各实施例之间可以任意组合,例如,不同实施例的部分或全部步骤可以任意组合,某一实施例可以与其他实施例的可选实现方式任意组合。
在各本公开实施例中,如果没有特殊说明以及逻辑冲突,各实施例之间的术语和/或描述具有一致性,且可以互相引用,不同实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本公开实施例中所使用的术语只是为了描述特定实施例的目的,而并非作为对本公开的限制。
在本公开实施例中,“多个”是指两个或两个以上。
在一些实施例中,“至少一者(至少一项、至少一个)(at least one of)”、“一个或多个(one or more)”、“多个(a plurality of)”、“多个(multiple)等术语可以相互替换。
在一些实施例中,“A、B中的至少一者”、“A和/或B”、“在一情况下A,在另一情况下B”、“响应于一情况A,响应于另一情况B”等记载方式,根据情况可以包括以下技术方案:在一些实施例中A(与B无关地执行A);在一些实施例中B(与A无关地执行B);在一些实施例中从A和B中选择执行(A和B被选择性执行);在一些实施例中A和B(A和B都被执行)。当有A、B、C等更多分支时也类似上述。
在一些实施例中,“A或B”等记载方式,根据情况可以包括以下技术方案:在一些实施例中A(与B无关地执行A);在一些实施例中B(与A无关地执行B);在一些实施例中从A和B中选择执行(A和B被选择性执行)。当有A、B、C等更多分支时也类似上述。
本公开实施例中的“第一”、“第二”等前缀词,仅仅为了区分不同的描述对象,不对描述对象的位置、顺序、优先级、数量或内容等构成限制,对描述对象的陈述参见权利要求或实施例中上下文的描述,不应因为使用前缀词而构成多余的限制。例如,描述对象为“字段”,则“第一字段”和“第二字段”中“字段”之前的序数词并不限制“字段”之间的位置或顺序,“第一”和“第二”并不限制其修饰的“字段”是否在同一个消息中,也不限制“第一字段”和“第二字段”的先后顺序。再如,描述对象为“等级”,则“第一等级”和“第二等级”中“等级”之前的序数词并不限制“等级”之间的优先级。再如,描述对象的数量并不受序数词的限制,可以是一个或者多个,以“第一装置”为例,其中“装置”的数量可以是一个或者多个。此外,不同前缀词修饰的对象可以相同或不同,例如,描述对象为“装置”,则“第一装置”和“第二装置”可以是相同的装置或者不同的装置,其类型可以相同或不同;再如,描述对象为“信息”,则“第一信息”和“第二信息”可以是相同的信息或者不同的信息,其内容可以相同或不同。
在一些实施例中,“包括A”、“包含A”、“用于指示A”、“携带A”,可以解释为直接携带A,也可以解释为间接指示A。
在一些实施例中,“响应于……”、“响应于确定……”、“在……的情况下”、“在……时”、“当……时”、“若……”、“如果……”等术语可以相互替换。
在一些实施例中,“大于”、“小于或等于”、“不小于”、“多于”、“多于或等于”、“不少于”、“高于”、“高于或等于”、“不低于”、“以上”等术语可以相互替换,“小于”、“小于或等于”、“不大于”、“少于”、“少于或等于”、“不多于”、“低于”、“低于或等于”、“不高于”、“以下”等术语可以相互替换。
在一些实施例中,装置和设备可以解释为实体的、也可以解释为虚拟的,其名称不限定于实施例中所记载的名称,在一些情况下也可以被理解为“设备(equipment)”、“设备(device)”、“电路”、“网元”、“节点”、“功能”、“单元”、“部件(section)”、“系统”、“网络”、“芯片”、“芯片系统”、“实体”、“主体”等。
在一些实施例中,获取数据、信息等可以遵照所在地国家的法律法规。
在一些实施例中,可以在得到用户同意后获取数据、信息等。
此外,本公开实施例的表格中的每一元素、每一行、或每一列均可以作为独立实施例来实施,任意元素、任意行、任意列的组合也可以作为独立实施例来实施。
图1是根据本公开实施例示出的通信方法的示意图之一。
如图1所示,在WLAN中,信道通常分为主信道和辅助信道(secondary channel或non-primary channel,或称为次信道、非主信道);主信道例如图1中主20MHz信道;其中,辅助信道可以包含一个或多个子信道,例如图1中20MHz辅助信道和40MHz辅助信道。
在信道上进行随机竞争的过程,若主信道处于OBSS繁忙状态(OBSS干扰),如图中T1时间段与T2时间段所示,例如被与WLAN处于同一OBSS中的其他设备所占据,其他设备在主信道上发送物理层协议数据单元(physical protocol data unit,PPDU),则该主信道处于OBSS繁忙状态。若主信道处于OBSS繁忙状态,为了能够充分利用信道资源,则可切换到辅助信道通信,以提高通信系统吞吐量,实现信道资源利用最大化。例如,在T1时间段切换到20MHz辅助信道通信,或在T2时间段切换到40MHz辅助信道通信。
若主信道处于空闲状态,如图中T3时间段所示,则AP与STA之间可以互相发送数据或其他信息。
图2是根据本公开实施例示出的通信系统的架构示意图。
如图2所示,通信系统100包括站点设备(Station,STA)101、接入点设备(Access Point,AP)102。
在一些实施例中,站点设备101例如包括支持WiFi通讯功能的无线通讯芯片、无线传感器或无线通信终端。可选地,无线通信终端例如手机(mobile phone)、可穿戴设备、支持WiFi通讯功能的物联网设备、具备WiFi通讯功能的汽车、智能汽车、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备中的至少一者,但不限于此。
具体地,站点设备101可以是带有无线保真(WiFi)芯片的终端设备或者网络设备。可选的,站点设备101可以支持802.11ax、802.11be、802.11ac、802.11n、802.11g、802.11b及802.11a、802.11bf、802.11bn等多种WLAN制式,以及支持下一代802.11协议,但不限于此。
在一些实施例中,接入点设备102可以是移动终端进入有线网络的接入点。AP相当于一个连接有线网和无线网的桥梁,其主要作用是将各个无线网络客户端连接到一起,然后将无线网络接入以太网。具体地,AP可以是带有无线保真芯片的终端设备或者网络设备。可选的,AP可以支持802.11ax、802.11be、802.11ac、802.11n、802.11g、802.11b及802.11a、802.11bf、802.11bn等多种WLAN制式,以及支持下一代802.11协议,但不限于此。
可选地,在本公开实施例中,AP和STA可以为支持多连接的设备,例如,可以被分别表示为多连接入点设备(Access Point Multi-Link Device,AP MLD)和多连站点设备(Non-Access Point Multi-Link Device,Non-AP MLD);AP MLD可以表示支持多连接通信功能的接入点,non-AP MLD可以表示支持多连接通信功能的站点。
可以理解的是,本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案,并不构成对于本公开实施例提出的技术方案的限定,本领域普通技术人员可知,随着系统架构的演变和新业务场景的出现,本公开实施例提出的技术方案对于类似的技术问题同样适用。
下述本公开实施例可以应用于图2所示的通信系统100、或部分主体,但不限于此。图2所示的各主体是例示,通信系统可以包括图2中的全部或部分主体,也可以包括图2以外的其他主体,各主体数量和形态为任意,各主体可以是实体的也可以是虚拟的,各主体之间的连接关系是例示,各主体之间可以不连接也可以连接,其连接可以是任意方式,可以是直接连接也可以是间接连接,可以是有线连接也可以是无线连接。
本公开各实施例可以应用于无线局域网(Wireless Local Area Network,WLAN),例如采用802.11系列协议的局域网。在WLAN中,基本服务集(BSS,Basic Service Set)是一个WLAN的基本组成部分。BSS网络是由某一特定覆盖区域之内具有某种关联的站点设备组成。关联的一种情形是站点在一个自组网络中相互直接通信,这被称为独立BSS(IBSS,Independent Basic Service Set)。另一种更常见的情形是在BSS网络中只有一个具有专职管理BSS的中央站点被称为接入点设备,而在该网络中的其它STA都与它相关联。在BSS网络中的不是中央站点的其它站点被称之为终端,也称之为non-AP STA,终端和non-AP STA统称之为STA。当描述STA时不需要区分AP和non-AP STA。在同一个BSS网络中,由于距离、发送功率等原因,一个STA无法检测离其较远的其他STA,两者互为对方的隐藏节点。
图3是根据本公开实施例示出的通信方法的示意图之一,如图3所示,上述方法包括:
步骤301,接入点设备在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息。
在WLAN中,信道通常分为主信道和辅助信道(secondary channel或non-primary channel,或称为次信道、非主信道);其中,辅助信道可以包含一个或多个子信道。例如,若以20MHz为基本带宽单位进行划分,当信道带宽为20MHz时,仅具有一个带宽为20MHz的主信道;当信道带宽大于20MHz时,包含一个带宽为20MHz的信道为主信道,其余的一个或多个20MHz信道为辅助信道。主20MHz信道为属于一个BSS中的成员的公共操作信道(The common channel of operation for stations that are members of the basicservice set),BSS中的站点可在主20MHz信道上进行通过随机竞争接入信道,以获得信道资源。
在信道上进行随机竞争的过程,若主信道处于OBSS(overlapping basic service set)繁忙状态,例如被与接入点设备102处于同一OBSS中的其他设备所占据,其他设备在主信道上发送物理层协议数据单元(physical protocol data unit,PPDU),则该主信道处于OBSS繁忙状态。若主信道处于OBSS繁忙状态,为了能够充分利用信道资源,则可切换到辅助信道与站点设备101通信,将站点设备101调度到辅助信道上,并与站点设备101进行数据的发送和接收,以提高通信系统吞吐量,实现信道资源利用最大化。
本公开实施例中,接入点设备102在主信道感知(sense)信道是否繁忙;通常情况下,网络上各个站点设备在发送数据前都要侦听信道上有没有其他数据在传输,例如在物理层通过能量检测(energy detection,ED)机制,以及MAC层的NAV(Network Allocation Vector)设置机制来实现。接入点设备102感知主信道繁忙,则切换到辅助信道确定并发送第一无线帧,通过所述第一无线帧请求站点设备发送数据帧或缓存信息。
可选地,第一无线帧可以包括请求发送(request to send,RTS)帧或缓冲区状态报告轮询(buffer status report poll,BSRP)控制帧,通过第一无线帧请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息。
步骤302,在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
其中,在接入点设备102在辅助信道发送RTS帧或BSRP控制帧时,站点设备101可能无法接收到第一无线帧;例如由于隐藏节点的存在,其他隐藏节点与站点设备101通信干扰了站点设备101感知主信道的繁忙状态。因此,在接入点设备102感知主信道繁忙并切换到辅助信道发送第一无线帧,可能站点设备101无法感知主信道繁忙,站点设备101并不会切换到辅助信道,而会在主信道等待接入点设备102发送第一无线帧,造成不必要的设备功耗,导致数据传输时延增加,可能无法满足时延要求。
本公开实施例中,接入点设备102感知主信道繁忙,则切换到辅助信道确定第一无线帧,并在在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧,通过所述第一无线帧请求站点设备发送数据帧或缓存信息。而所述侦听周期为与所述站点设备101预先协商的在辅助信道进行侦听的周期,所述侦听周期可以为站点设备101侦听辅助信道的周期。在每个侦听周期到达的时刻,站点设备101将会侦听辅助信道,并在辅助信道接收所述第一无线帧,避免出现站点设备101无法接收到第一无线帧的情况,进而实现在辅助信道中进行通信,以提高通信系统吞吐量,实现信道资源利用最大化。
可以理解的是,每个侦听周期到达时刻,可以是每个侦听周期的开始时间,例如新的侦听周期时开始的前一段时间,例如前N毫秒或微秒内。
其中,步骤302中根据所述辅助信道的感知模式,分别执行步骤3021或步骤3022。
步骤3021,所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第一无线帧。
其中,同时感知即所述站点设备支持同时在至少两个所述辅助信道进行感知;
若至少两个所述辅助信道支持同时感知,则接入点设备102可以在每个支持同时感知的辅助信道同时发送所述第一无线帧。
步骤3022,所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第一无线帧。
其中,所述分时感知标识所述站点设备支持:分别在每条所述辅助信道进行感知。这样,接入
点设备102可以在每个辅助信道的侦听周期到达时刻,分别发送所述第一无线帧;即对于不同的辅助信道而言,在各自的侦听周期到达时刻,在该辅助信道的发送第一无线帧。
可选地,各个辅助信道之间可能存在时间偏移,例如,站点设备101在辅助信道1中执行了backoff操作,则在辅助信道2中的发送时间就会存在偏差;在这种情况下,各个辅助信道的时间可以与主信道之间的时间同步功能(Time synchronization function,TSF)参数为基准。
在一些实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
其中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同,即侦听周期的起始时间、结束时间、持续时长均相同。
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同,以便区分开不同辅助信道的侦听周期,避免不同辅助信道的侦听周期之间产生重叠。
所述辅助信道的感知模式包括分时感知,可以设置每个辅助信道的侦听顺序;且相邻的侦听周期之间的时间间隔可以相同。例如,辅助信道1的侦听周期为侦听周期1,辅助信道2的侦听周期为侦听周期2,辅助信道3的侦听周期为侦听周期3;其中,侦听周期1与侦听周期2之间的时间间隔,与侦听周期2与侦听周期3之间的时间间隔相同。
其中,相邻的侦听周期之间的时间间隔,可以是前一侦听周期的结束时间与后一侦听周期的开始时间之间的时间间隔。
在一些实施例中,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
通常情况下,在辅助信道的通信时长不超过在主信道的通信时间;因此,第一无线帧的持续时间小于或等于主信道网络分配矢量(network allocation vector,NAV)的设置时长,避免出现在辅助信道的通信尚未结束,而主信道的NAV结束,站点设备101或接入点设备102重新接入主信道,造成在辅助信道的通信中断或其他情况。
在一些实施例中所述方法还包括:
在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
其中,在初始关联过程或初始关联之后,例如通过第三无线帧协商;所述第三无线帧包括信标beacon帧、探测响应probe response帧、关联响应association response帧或新定义的无线帧中的至少一种;例如,在初始关联过程中,接入点设备102与站点设备101通过前述beacon帧、probe response帧、association response帧中的至少一种来协商接入点设备102的侦听能力信息;所述新定义的无线帧为初始关联之后发送的无线帧,在初始关联之后,通过新定义的无线帧来协商接入点设备102的侦听周期信息。
所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准,且所述侦听周期信息可以携带在所述关联响应association response帧中,例如,通过association response确定最终执行的侦听周期时间。
本公开实施例所涉及的通信方法可以包括前述步骤以及实施例中的至少一者。例如,步骤301可以作为独立实施例来实施,步骤302可以作为独立实施例来实施、步骤3021可以作为独立实施例来实施、步骤3022可以作为独立实施例来实施;步骤301与步骤302的结合可以作为独立实施例来实施,步骤301与步骤3021的结合可以作为独立实施例来实施,步骤301与步骤3022的结合可以作为独立实施例来实施,但不限于此。
在一些实施例中,可参见图3所对应的说明书之前或之后记载的其他可选实现方式。
图4是根据本公开实施例示出的通信方法的示意图之一,如图4所示,上述方法包括:
步骤401,站点设备在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据。
在WLAN中,信道通常分为主信道和辅助信道(secondary channel或non-primary channel,或称为次信道、非主信道);其中,辅助信道可以包含一个或多个子信道。例如,若以20MHz为基本带宽单位进行划分,当信道带宽为20MHz时,仅具有一个带宽为20MHz的主信道;当信道带宽大于20MHz时,包含一个带宽为20MHz的信道为主信道,其余的一个或多个20MHz信道为辅助信道。
主20MHz信道为属于一个BSS中的成员的公共操作信道(The common channel of operation for stations that are members of the basicservice set),BSS中的站点可在主20MHz信道上进行随机竞争,以抢占信道资源。
在信道上进行随机竞争的过程,若主信道处于OBSS繁忙状态,例如被与接入点设备102处于同一OBSS中的其他设备所占据,其他设备在主信道上发送物理层协议数据单元(physical protocol data unit,PPDU),则该主信道处于OBSS繁忙状态。若主信道处于OBSS繁忙状态,为了能够充分利用信道资源,则可切换到辅助信道与站点设备101通信,将站点设备101调度到辅助信道上,并与站点设备101进行数据的发送和接收,以提高通信系统吞吐量,实现信道资源利用最大化。
通常情况下,网络上各个站点设备在发送数据前都要侦听信道上有没有其他数据在传输,例如通过能量检测(energy detection,ED)机制实现。站点设备101在辅助信道确定并发送第二无线帧,通过所述第二无线帧请求接入点设备102发送数据帧。
可选地,第二无线帧可以包括请求发送(request to send,RTS)帧。
步骤402,在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
其中,在接入点设备102在辅助信道发送RTS帧或BSRP控制帧时,站点设备101可能无法接收到第二无线帧;例如由于隐藏节点的存在,其他隐藏节点与站点设备101通信干扰了站点设备101感知主信道的繁忙状态。因此,在接入点设备102感知主信道繁忙并切换到辅助信道发送第二无线帧,可能站点设备101无法感知主信道繁忙,站点设备101并不会切换到辅助信道,而会在主信道等待接入点设备102发送第二无线帧,造成不必要的设备功耗,导致数据传输时延增加,可能无法满足时延要求。
本公开实施例中,站点设备101在每个侦听周期到达时刻,在所述辅助信道发送所述第二无线帧,通过所述第二无线帧请求接入点设备发送数据帧。而所述侦听周期为与所述站点设备101预先协商的,所述侦听周期可以为站点设备101侦听辅助信道的周期。在每个侦听周期到达的时刻,站点设备101将会侦听辅助信道,并在辅助信道接收所述第二无线帧,避免出现站点设备101无法接收到第二无线帧的情况,进而实现在辅助信道中进行通信,以提高通信系统吞吐量,实现信道资源利用最大化。
可以理解的是,每个侦听周期到达时刻,可以是每个侦听周期的开始时间,例如新的侦听周期时开始的前一段时间,例如前N毫秒内。
其中,步骤402中根据所述辅助信道的感知模式,分别执行步骤4021或步骤4022。
步骤4021,所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第二无线帧。
其中,同时感知即所述站点设备101支持同时在至少两个所述辅助信道进行感知;
若至少两个所述辅助信道支持同时感知,则站点设备101可以在每个支持同时感知的辅助信道同时发送所述第二无线帧。
步骤4022,所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第二无线帧。
其中,所述分时感知标识所述站点设备支持:分别在每条所述辅助信道进行感知。这样,站点设备101可以在每个辅助信道的侦听周期到达时刻,分别发送所述第二无线帧;即对于不同的辅助信道而言,在各自的侦听周期到达时刻,在该辅助信道的发送第二无线帧。
可选地,各个辅助信道之间可能存在时间偏移,例如,站点设备101在辅助信道1中执行了backoff操作,则在辅助信道2中的发送时间就会存在偏差;在这种情况下,各个辅助信道的时间可以与主信道之间的时间同步功能(Time synchronization function,TSF)参数为基准。
在一些实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
其中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同,即侦听周期的起始时间、结束时间、持续时长均相同。
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同,以便区分开不同辅助信道的侦听周期,避免不同辅助信道的侦听周期之间产生重叠。
所述辅助信道的感知模式包括分时感知,可以设置每个辅助信道的侦听顺序;且相邻的侦听周期之间的时间间隔可以相同。例如,辅助信道1的侦听周期为侦听周期1,辅助信道2的侦听周期为侦听周期2,辅助信道3的侦听周期为侦听周期3;其中,侦听周期1与侦听周期2之间的时间间隔,与侦听周期2与侦听周期3之间的时间间隔相同。
其中,相邻的侦听周期之间的时间间隔,可以是前一侦听周期的结束时间与后一侦听周期的开始时间之间的时间间隔。
在一些实施例中,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
通常情况下,在辅助信道的通信时长不超过在主信道的通信时间;因此,第二无线帧的持续时间小于或等于主信道网络分配矢量(network allocation vector,NAV)的设置时长,避免出现在辅助信道的通信尚未结束,而主信道的NAV结束,站点设备101或接入点设备102重新接入主信道,造成在辅助信道的通信中断或其他情况。
在一些实施例中所述方法还包括:
在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
其中,在初始关联过程或初始关联之后,例如通过第三无线帧协商;所述第三无线帧包括探测请求probe request帧、关联请求association request帧或新定义的无线帧中的至少一种;例如,在初始关联过程中,接入点设备102与站点设备101通过前述probe response帧、association response帧中的至少一种来协商接入点设备102的侦听能力信息;所述新定义的无线帧为初始关联之后发送的无线帧,在初始关联之后,通过新定义的无线帧来协商接入点设备102的侦听周期信息。
所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准,且所述侦听周期信息可以携带在所述关联响应association response帧中,例如,通过association response确定最终执行的侦听周期时间。
本公开实施例所涉及的通信方法可以包括前述步骤以及实施例中的至少一者。例如,步骤401可以作为独立实施例来实施,步骤402可以作为独立实施例来实施、步骤4021可以作为独立实施例来实施、步骤4022可以作为独立实施例来实施;步骤401与步骤402的结合可以作为独立实施例来实施,步骤401与步骤4021的结合可以作为独立实施例来实施,步骤401与步骤4022的结合可以作为独立实施例来实施,但不限于此。
在一些实施例中,可参见图4所对应的说明书之前或之后记载的其他可选实现方式。
在一些实施例中,信息等的名称不限定于实施例中所记载的名称,“信息(information)”、“消息(message)”、“信号(signal)”、“信令(signaling)”、“报告(report)”、“配置(configuration)”、“指示(indication)”、“指令(instruction)”、“命令(command)”、“信道”、“参数(parameter)”、“域”、“字段”、“符号(symbol)”、“码点(codepoint)”、“比特(bit)”、“数据(data)”、“程序(program)”、“码片(chip)”等术语可以相互替换。
在一些实施例中,“时刻”、“时间点”、“时间”、“时间位置”等术语可以相互替换,“时长”、“时段”、“时间窗口”、“窗口”、“时间”等术语可以相互替换。
在一些实施例中,无线接入方案(wireless access scheme)、波形(waveform)等术语可以相互替换。
在一些实施例中,“特定(certain)”、“预定(preseted)”、“预设”、“设定”、“指示(indicated)”、“某一”、“任意”、“第一”等术语可以相互替换,“特定A”、“预定A”、“预设A”、“设定A”、“指示A”、“某一A”、“任意A”、“第一A”可以解释为在协议等中预先规定的A,也可以解释为通过设定、配置、或指示等得到的A,也可以解释为特定A、某一A、任意A、或第一A等,但不限于此。
在一些实施例中,判定或判断可以通过以1比特表示的值(0或1)来进行,也可以通过以真(true)或者假(false)表示的真假值(布尔值(boolean))来进行,也可以通过数值的比较(例如,与预定值的比较)来进行,但不限于此。
在一些实施例中,“不期待接收”可以解释为不在时域资源和/或频域资源上接收,也可以解释为在接收到数据等后,不对该数据等执行后续处理;“不期待发送”可以解释为不发送,也可以解释为发送但是不期待接收方对发送的内容做出响应。
图5是根据本公开实施例示出的通信方法的流程示意图之一。
如图5所示,上述方法可应用于接入点设备102,上述方法包括:
步骤501,接入点设备在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;
步骤502,在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
可选地,本公开实施例中,步骤502包括:
步骤5021,述在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧,包括:
所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第一无线帧;
或
步骤5022,所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第一无线帧。
可选地,本公开实施例中,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
可选地,本公开实施例中,在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
可选地,本公开实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
本公开实施例所涉及的通信方法可以包括前述步骤以及实施例中的至少一者。例如,步骤501可以作为独立实施例来实施,步骤502可以作为独立实施例来实施、步骤5021可以作为独立实施例来实施、步骤5022可以作为独立实施例来实施;步骤501与步骤502的结合可以作为独立实施例来实施,步骤501与步骤5021的结合可以作为独立实施例来实施,步骤501与步骤5022的结合可以作为独立实施例来实施,但不限于此。
在一些实施例中,可参见图5所对应的说明书之前或之后记载的其他可选实现方式。
图6是根据本公开实施例示出的通信方法的流程示意图之二。
如图6所示,上述方法可应用于站点设备101,上述方法包括:
步骤601,站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;
其中,所述第一无线帧用于请求站点设备在辅助信道接收数据或在辅助信道反馈缓存状态信息
所述侦听周期为与所述站点设备预先协商的。
可选地,本公开实施例中,步骤601包括:
步骤6011,所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时接收所述第一无线帧;
或
步骤6012,所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别接收所述第一无线帧。
可选地,本公开实施例中,所述第一无线帧包括请求发送RTS帧或缓冲区状态报告轮询BSRP帧。
可选地,本公开实施例中,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
可选地,本公开实施例中,所述方法还包括:
在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
可选地,本公开实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
本公开实施例所涉及的通信方法可以包括前述步骤以及实施例中的至少一者。例如,步骤601可以作为独立实施例来实施,步骤6011可以作为独立实施例来实施,步骤6012可以作为独立实施例来实施,但不限于此。
在一些实施例中,可参见图6所对应的说明书之前或之后记载的其他可选实现方式。
图7是根据本公开实施例示出的通信方法的流程示意图之三。
如图7所示,上述方法可应用于站点设备101,上述方法包括:
步骤701,站点设备在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
步骤702,在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
可选地,本公开实施例中,步骤702包括:
步骤7021,所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第二无线帧;
或
步骤7022,所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第二无线帧。
可选地,本公开实施例中,所述第二无线帧包括请求发送RTS帧。
可选地,本公开实施例中,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
可选地,本公开实施例中,在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
可选地,本公开实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
本公开实施例所涉及的通信方法可以包括前述步骤以及实施例中的至少一者。例如,步骤701可以作为独立实施例来实施,步骤702可以作为独立实施例来实施、步骤7021可以作为独立实施例来实施、步骤7022可以作为独立实施例来实施;步骤701与步骤702的结合可以作为独立实施例来实施,步骤701与步骤7021的结合可以作为独立实施例来实施,步骤701与步骤7022的结合可以作为独立实施例来实施,但不限于此。
在一些实施例中,可参见图7所对应的说明书之前或之后记载的其他可选实现方式。
图8是根据本公开实施例示出的通信方法的流程示意图之二。
如图8所示,上述方法可应用于接入点设备,上述方法包括:
步骤801,接入点设备在侦听周期到达时刻,在辅助信道接收第二无线帧;
其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
所述侦听周期为与所述站点设备预先协商的。
可选地,本公开实施例中,步骤801包括:
步骤8011,所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时接收所述第二无线帧;
或
步骤8012,所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别接收所述第二无线帧。
可选地,本公开实施例中,所述第二无线帧包括请求发送RTS帧。
可选地,本公开实施例中,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
可选地,本公开实施例中,在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
可选地,本公开实施例中,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;
所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;
或
所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
本公开实施例所涉及的通信方法可以包括前述步骤以及实施例中的至少一者。例如,步骤801可以作为独立实施例来实施,步骤8011可以作为独立实施例来实施,步骤8012可以作为独立实施例来实施,但不限于此。
在一些实施例中,可参见图8所对应的说明书之前或之后记载的其他可选实现方式。
本公开实施例还提出用于实现以上任一方法的装置,例如,提出一装置,上述装置包括用以实现以上任一方法中终端所执行的各步骤的单元或模块。再如,还提出另一装置,包括用以实现以上任一方法中网络设备(例如接入网设备、核心网功能节点、核心网设备等)所执行的各步骤的单元或模块。
应理解以上装置中各单元或模块的划分仅是一种逻辑功能的划分,在实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。此外,装置中的单元或模块可以以处理器调用软件的形式实现:例如装置包括处理器,处理器与存储器连接,存储器中存储有指令,处理器调用存储器中存储的指令,以实现以上任一方法或实现上述装置各单元或模块的功能,其中处理器例如为通用处理器,例如中央处理单元(Central Processing Unit,CPU)或微处理器,存储器为装置内的存储器或装置外的存储器。或者,装置中的单元或模块可以以硬件电路的形式实现,可以通过对硬件电路的设计实现部分或全部单元或模块的功能,上述硬件电路可以理解为一个或多个处理器;例如,在一种实现中,上述硬件电路为专用集成电路(application-specific integrated circuit,ASIC),通过对电路内元件逻辑关系的设计,实现以上部分或全部单元或模块的功能;再如,在另一种实现中,上述硬件电路为可以通过可编程逻辑器件(programmable logic device,PLD)实现,以现场可编程门阵列(Field Programmable Gate Array,FPGA)为例,其可以包括大量逻辑门电路,通过配置文件来配置逻辑门电路之间的连接关系,从而实现以上部分或全部单元或模块的功能。以上装置的所有单元或模块可以全部通过处理器调用软件的形式实现,或全部通过硬件电路的形式实现,或部分通过处理器调用软件的形式实现,剩余部分通过硬件电路的形式实现。
在本公开实施例中,处理器是具有信号处理能力的电路,在一种实现中,处理器可以是具有指令读取与运行能力的电路,例如中央处理单元(Central Processing Unit,CPU)、微处理器、图形处理器(graphics processing unit,GPU)(可以理解为微处理器)、或数字信号处理器(digital signal processor,DSP)等;在另一种实现中,处理器可以通过硬件电路的逻辑关系实现一定功能,上述硬件电路的逻辑关系是固定的或可以重构的,例如处理器为专用集成电路(application-specific integrated circuit,ASIC)或可编程逻辑器件(programmable logic device,PLD)实现的硬件电路,例如FPGA。在可重构的硬件电路中,处理器加载配置文档,实现硬件电路配置的过程,可以理解为处理器加载指令,以实现以上部分或全部单元或模块的功能的过程。此外,还可以是针对人工智能设计的硬件电路,其可以理解为ASIC,例如神经网络处理单元(Neural Network Processing Unit,NPU)、张量处理单元(Tensor Processing Unit,TPU)、深度学习处理单元(Deep learning Processing Unit,DPU)等。
图9是本公开实施例提出的接入点设备的结构示意图。如图9所示,接入点设备900可以包括:第一确定模块901、第一发送模块902等中的至少一者。
在一些实施例中,上述第一确定模块901,用于用于在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息。
第一发送模块902用于在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
可选地,上述第一确定模块901用于执行以上任一方法中接入点设备102执行的通信步骤(例如步骤301、步骤501)中的至少一者,第一发送模块902用于执行步骤302、步骤3021、步骤3022,步骤502、步骤5021、步骤5022的至少一者,此处不再赘述。
图10是本公开实施例提出的站点设备的结构示意图。如图10所示,站点设备1000可以包括:第一接收模块1001。
在一些实施例中,上述第一接收模块1001,用于站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;
其中,所述第一无线帧用于请求站点设备在辅助信道接收数据或在辅助信道反馈缓存状态信息
所述侦听周期为与所述站点设备预先协商的。
可选地,上述第一接收模块1001用于执行以上任一方法中站点设备101执行的通信步骤(例如步骤601、步骤6011、步骤6012,但不限于此)中的至少一者,此处不再赘述。
图11是本公开实施例提出的站点设备的结构示意图。如图11所示,站点设备1100可以包括:第二确定模块1101、第二发送模块1102。
在一些实施例中,上述第二确定模块1101,用于在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
第二发送模块1102,用于在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
可选地,上述第二确定模块1101用于执行以上任一方法中站点设备101执行的通信步骤(例如步骤401、步骤701,但不限于此)中的至少一者,第二发送模块1102执行步骤402、步骤4021、步骤4022,步骤702、步骤7021、步骤7022的至少一者,此处不再赘述。
图12是本公开实施例提出的接入点设备的结构示意图。如图12所示,接入点设备1200可以包括:第二接收模块1201。
在一些实施例中,上述第二接收模块1201,用于在侦听周期到达时刻,在辅助信道接收第二无线帧;
其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;
所述侦听周期为与所述站点设备预先协商的。
可选地,上述第二接收模块1201用于执行以上任一方法中接入点设备102执行的通信步骤(例如步骤801、步骤8011、步骤8012,但不限于此)中的至少一者,此处不再赘述。
图13是本公开实施例提出的终端1300(例如用户设备等)的结构示意图。终端1300可以是支持网络设备实现以上任一方法的芯片、芯片系统、或处理器等,还可以是支持终端实现以上任一方法的芯片、芯片系统、或处理器等。终端1300可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
如图13所示,终端1300包括一个或多个处理器1301。处理器1301可以是通用处理器或者专用处理器等,例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端设备、终端设备芯片,DU或CU等)进行控制,执行程序,处理程序的数据。终端1300用于执行以上任一方法。
在一些实施例中,终端1300还包括用于存储指令的一个或多个存储器1302。可选地,全部或部分存储器1302也可以处于终端1300之外。
在一些实施例中,终端1300还包括一个或多个收发器1304。在终端1300包括一个或多个收发器1304时,收发器1304执行上述方法中的发送和/或接收等通信步骤(例如步骤302、步骤3021、步骤3022、步骤402、步骤4021、步骤4022、步骤502、步骤5021、步骤5022、步骤601、步骤6011、步骤6012、步骤702、步骤7021、步骤7022、步骤801、步骤8011、步骤8012,但不限于此)中的至少一者,处理器1301执行其他步骤(例如步骤301、步骤401、步骤501、步骤701,但不限于此)中的
至少一者。
在一些实施例中,收发器可以包括接收器和/或发送器,接收器和发送器可以是分离的,也可以集成在一起。可选地,收发器、收发单元、收发机、收发电路等术语可以相互替换,发送器、发送单元、发送机、发送电路等术语可以相互替换,接收器、接收单元、接收机、接收电路等术语可以相互替换。
在一些实施例中,终端1300可以包括一个或多个接口电路1303。可选地,接口电路1303与存储器1302连接,接口电路1303可用于从存储器1302或其他装置接收信号,可用于向存储器1302或其他装置发送信号。例如,接口电路1303可读取存储器1302中存储的指令,并将该指令发送给处理器1301。
以上实施例描述中的终端1300可以是用户设备等通信设备,但本公开中描述的终端1300的范围并不限于此,终端1300的结构可以不受图13的限制。通信设备可以是独立的设备或者可以是较大设备的一部分。例如所述通信设备可以是:(1)独立的集成电路IC,或芯片,或,芯片系统或子系统;(2)具有一个或多个IC的集合,可选地,上述IC集合也可以包括用于存储数据,程序的存储部件;(3)ASIC,例如调制解调器(Modem);(4)可嵌入在其他设备内的模块;(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等;(6)其他等等。
图14是本公开实施例提出的芯片1400的结构示意图。对于终端1300可以是芯片或芯片系统的情况,可以参见图14所示的芯片1400的结构示意图,但不限于此。
芯片1400包括一个或多个处理器1401,芯片1400用于执行以上任一方法。
在一些实施例中,芯片1400还包括一个或多个1403。可选地,接口电路1403与存储器1402连接,接口电路1403可以用于从存储器1402或其他装置接收信号,接口电路1403可用于向存储器1402或其他装置发送信号。例如,接口电路1403可读取存储器1402中存储的指令,并将该指令发送给处理器1401。
在一些实施例中,接口电路1403执行上述方法中的发送和/或接收等通信步骤例如(例如步骤302、步骤3021、步骤3022、步骤402、步骤4021、步骤4022、步骤502、步骤5021、步骤5022、步骤601、步骤6011、步骤6012、步骤702、步骤7021、步骤7022、步骤801、步骤8011、步骤8012,但不限于此)中的至少一者,处理器1401执行其他步骤(例如步骤301、步骤401、步骤501、步骤701,但不限于此中的至少一者。
在一些实施例中,接口电路、接口、收发管脚、收发器等术语可以相互替换。
在一些实施例中,芯片1400还包括用于存储指令的一个或多个存储器1402。可选地,全部或部分存储器1402可以处于芯片1400之外。
本公开还提出存储介质,上述存储介质上存储有指令,当上述指令在终端1300上运行时,使得终端1300执行以上任一方法。可选地,上述存储介质是电子存储介质。可选地,上述存储介质是计算机可读存储介质,但不限于此,其也可以是其他装置可读的存储介质。可选地,上述存储介质可以是非暂时性(non-transitory)存储介质,但不限于此,其也可以是暂时性存储介质。
本公开还提出程序产品,上述程序产品被终端1300执行时,使得终端1300执行以上任一方法。可选地,上述程序产品是计算机程序产品。
本公开还提出计算机程序,当其在计算机上运行时,使得计算机执行以上任一方法。
Claims (29)
- 一种通信方法,其特征在于,所述方法包括:接入点设备在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
- 根据权利要求1所述的通信方法,其特征在于,所述在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧,包括:所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第一无线帧;或所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第一无线帧。
- 根据权利要求1或2所述的通信方法,其特征在于,所述第一无线帧包括请求发送RTS帧或缓冲区状态报告轮询BSRP帧。
- 根据权利要求1所述的通信方法,其特征在于,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
- 根据权利要求1所述的通信方法,其特征在于,所述方法还包括:在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
- 根据权利要求1所述的通信方法,其特征在于,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;或所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
- 一种通信方法,其特征在于,所述方法包括:站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;其中,所述第一无线帧用于请求所述站点设备在辅助信道接收数据或在辅助信道反馈缓存状态信息;所述侦听周期为与所述站点设备预先协商的。
- 根据权利要求7所述的通信方法,其特征在于,所述在侦听周期到达时刻,在辅助信道接收第一无线帧,包括:所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时接收所述第一无线帧;或所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别接收所述第一无线帧。
- 根据权利要求7或8所述的通信方法,其特征在于,所述第一无线帧包括请求发送RTS帧或缓冲区状态报告轮询BSRP帧。
- 根据权利要求7所述的通信方法,其特征在于,所述第一无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
- 根据权利要求7所述的通信方法,其特征在于,所述方法还包括:在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
- 根据权利要求7所述的通信方法,其特征在于,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;或所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
- 一种通信方法,其特征在于,所述方法包括:站点设备在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道 接收数据;在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
- 根据权利要求13所述的通信方法,其特征在于,所述在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧,包括:所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时发送所述第二无线帧;或所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别发送所述第二无线帧。
- 根据权利要求13或14所述的通信方法,其特征在于,所述第二无线帧包括请求发送RTS帧。
- 根据权利要求13所述的通信方法,其特征在于,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
- 根据权利要求13所述的通信方法,其特征在于,所述方法还包括:在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
- 根据权利要求13所述的通信方法,其特征在于,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;或所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
- 一种通信方法,其特征在于,所述方法包括:接入点设备在侦听周期到达时刻,在辅助信道接收第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;所述侦听周期为与站点设备预先协商的。
- 根据权利要求19所述的通信方法,其特征在于,所述在侦听周期到达时刻,在辅助信道接收第二无线帧,包括:所述辅助信道的感知模式包括同时感知,在侦听周期到达时刻,在每个所述辅助信道同时接收所述第二无线帧;或所述辅助信道的感知模式包括分时感知,在每个所述辅助信道的侦听周期到达时刻,在每个所述辅助信道分别接收所述第二无线帧。
- 根据权利要求19或20所述的通信方法,其特征在于,所述第二无线帧包括请求发送RTS帧。
- 根据权利要求19所述的通信方法,其特征在于,所述第二无线帧的持续时间小于或等于主信道网络分配矢量NAV的设置时长。
- 根据权利要求19所述的通信方法,其特征在于,所述方法还包括:在初始关联过程或初始关联之后,协商所述辅助信道的侦听周期信息;其中,所述侦听周期信息以主信道的时间同步功能TSF参数为时间基准。
- 根据权利要求19所述的通信方法,其特征在于,所述辅助信道的感知模式包括同时感知,每个所述辅助信道的侦听周期相同;所述辅助信道的感知模式包括分时感知,每个所述辅助信道的侦听周期不同;或所述辅助信道的感知模式包括分时感知,至少两个侦听顺序相邻的侦听周期间隔相同。
- 一种接入点设备,其特征在于,所述接入点设备包括:第一确定模块,用于在辅助信道确定第一无线帧;其中,所述第一无线帧用于请求站点设备在所述辅助信道接收数据或在所述辅助信道反馈缓存状态信息;第一发送模块,用于在侦听周期到达时刻,在所述辅助信道发送所述第一无线帧;其中,所述侦听周期为与所述站点设备预先协商的。
- 一种站点设备,其特征在于,所述站点设备包括:第一接收模块,用于站点设备在侦听周期到达时刻,在辅助信道接收第一无线帧;其中,所述第一无线帧用于请求所述站点设备在辅助信道接收数据或在辅助信道反馈缓存状态 信息;所述侦听周期为与所述站点设备预先协商的。
- 一种站点设备,其特征在于,所述站点设备包括:第二确定模块,用于在辅助信道确定第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;第二发送模块,用于在侦听周期到达时刻,在所述辅助信道发送所述第二无线帧;其中,所述侦听周期为与所述接入点设备预先协商的。
- 一种接入点设备,其特征在于,所述接入点设备包括:第二接收模块,用于在侦听周期到达时刻,在辅助信道接收第二无线帧;其中,所述第二无线帧用于请求接入点设备在辅助信道接收数据;所述侦听周期为与站点设备预先协商的。
- 一种通信设备,其特征在于,包括:一个或多个处理器;其中,所述通信设备用于执行权利要求1至24中任一项所述的通信方法。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111567125A (zh) * | 2018-01-10 | 2020-08-21 | 高通股份有限公司 | 用于支持辅信道操作的机制 |
| WO2022272052A1 (en) * | 2021-06-25 | 2022-12-29 | Interdigital Patent Holdings, Inc. | Enabling enhanced subchannel selective transmission in wlan systems |
| US20230180201A1 (en) * | 2018-01-31 | 2023-06-08 | Marvell Asia Pte Ltd | Operation with bandwidth-limited devices in a wireless network |
| US20230232452A1 (en) * | 2020-09-21 | 2023-07-20 | Huawei Technologies Co., Ltd. | Channel access method in wireless local area network and related apparatus |
| US20230239743A1 (en) * | 2022-01-21 | 2023-07-27 | Avago Technologies Intemational Sales Pte. Limited | Systems for and methods of dynamic subband operation |
| CN116602032A (zh) * | 2020-12-15 | 2023-08-15 | 华为技术有限公司 | 无线网络中的非主信道传输 |
-
2023
- 2023-08-23 WO PCT/CN2023/114493 patent/WO2025039225A1/zh active Pending
- 2023-08-23 CN CN202380010703.XA patent/CN119923890A/zh active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111567125A (zh) * | 2018-01-10 | 2020-08-21 | 高通股份有限公司 | 用于支持辅信道操作的机制 |
| US20230180201A1 (en) * | 2018-01-31 | 2023-06-08 | Marvell Asia Pte Ltd | Operation with bandwidth-limited devices in a wireless network |
| US20230232452A1 (en) * | 2020-09-21 | 2023-07-20 | Huawei Technologies Co., Ltd. | Channel access method in wireless local area network and related apparatus |
| CN116602032A (zh) * | 2020-12-15 | 2023-08-15 | 华为技术有限公司 | 无线网络中的非主信道传输 |
| WO2022272052A1 (en) * | 2021-06-25 | 2022-12-29 | Interdigital Patent Holdings, Inc. | Enabling enhanced subchannel selective transmission in wlan systems |
| US20230239743A1 (en) * | 2022-01-21 | 2023-07-27 | Avago Technologies Intemational Sales Pte. Limited | Systems for and methods of dynamic subband operation |
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| CN119923890A (zh) | 2025-05-02 |
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