WO2024021983A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2024021983A1
WO2024021983A1 PCT/CN2023/103524 CN2023103524W WO2024021983A1 WO 2024021983 A1 WO2024021983 A1 WO 2024021983A1 CN 2023103524 W CN2023103524 W CN 2023103524W WO 2024021983 A1 WO2024021983 A1 WO 2024021983A1
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WIPO (PCT)
Prior art keywords
field
time period
resources
information
indication information
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PCT/CN2023/103524
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English (en)
Chinese (zh)
Inventor
郭子阳
孙兴华
韩明启
刘鹏
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华为技术有限公司
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Publication of WO2024021983A1 publication Critical patent/WO2024021983A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies

Definitions

  • the present application relates to the field of wireless communications, and in particular, to communication methods and devices.
  • an orthogonal frequency division multiple access (OFDMA) mechanism is introduced, allowing multiple stations to transmit data in parallel.
  • multiple sites can feedback buffer status reports (Buffer Status Report, BSR) to the access point (AP) in real time, so that the access point can obtain the cache status of multiple sites, and based on the multiple sites
  • BSR Buffer Status Report
  • the cache status of each site is uniformly allocated resources.
  • the multiple stations can send data on the resources allocated by the access point to achieve parallel transmission of data by multiple stations.
  • the OFDMA mechanism is not suitable for scenarios where the access point does not know the cache status of the site.
  • the uplink OFDMA random access (UORA) mechanism is introduced in the communication system.
  • resources are usually obtained by sites through competition. Therefore, the station may not feedback the BSR to the access point.
  • resource conflicts may occur when sites compete for resources. Sites that have not competed for resources cannot send data for a long time, resulting in low throughput of the site and slow data transmission. Longer extension.
  • Embodiments of the present application provide communication methods and devices, which can improve the throughput of devices competing for resources and reduce data transmission delays.
  • a first aspect provides a communication method.
  • the communication device that executes the method may be a first device; it may also be a module applied in the first device, such as a chip or a chip system.
  • the first device may be a site.
  • the following description takes the execution subject as the first device as an example.
  • the method includes: receiving a trigger frame from a second device, and obtaining available resources within a second time period according to first indication information included in the trigger frame.
  • the first indication information is used to indicate at least one of the following: usage of multiple resources in the first time period or data transmission results on multiple resources in the first time period.
  • the second time period follows the first time period.
  • the first device may receive a trigger frame from the second device, and obtain available resources in the second time period according to the first indication information in the trigger frame. Since the first indication information may indicate the usage of multiple resources in the first time period and/or the data transmission results on the multiple resources in the first time period, that is to say, the first device determines the usage of multiple resources in the second time period. When available resources are considered, the usage of multiple resources in the first time period and/or the data transmission results on multiple resources in the first time period are considered, so the first device can adjust the resources in the second time period in a timely manner. Use a strategy so that the first device that has not competed for resources gets priority. In this way, the situation that the first device has no available resources for a long period of time can be avoided, thereby improving the throughput of the first device competing for resources and reducing the data transmission delay.
  • the first indication information may indicate the usage of multiple resources in the first time period and/or the data transmission results on the multiple resources in the first time period, that is to say, the first device determines the usage
  • the trigger frame includes a first field, the first field carries the first indication information; the first field is public information based on the trigger type in the public information field. field; or, the first field is a user information field based on the trigger type among the user information fields in the user information list.
  • the meaning of a certain field in the trigger frame defined in the protocol can be modified so that the field carries the first indication information. Since the number of bytes occupied by the above fields is variable, it has less impact on the trigger frame defined in the protocol, making the modified trigger frame (i.e., the trigger frame involved in the embodiment of this application) more compatible. .
  • the trigger frame further includes a second field; when the value of the second field is the first value, the first field carries the first indication information.
  • the first field can flexibly carry the first indication information. For example, when the first indication information needs to be carried, the value of the second field is made to be the first value, and the first field carries the first indication information. No need to carry the first finger When indicating information, the value of the second field can be made to be a value other than the first value, and the first field does not carry the first indication information.
  • the second field is a trigger type field among the public information fields; or , if the first field is a user information field based on the trigger type among the user information fields in the user information list, the second field is an association identifier field in the user information field.
  • whether the first field carries the first indication information can be indicated by the value of the trigger type field in the public information field or the value of the association identifier field in the user information field.
  • the first value is any one of the following values: 0, 2008 to 2045, or 2047 to 4094.
  • the first field carries the first indication information.
  • the first indication information is also used to indicate at least one of the following: the number of frequency domain units included in the multiple resources or the number of time domain units included in the multiple resources. quantity.
  • the first indication information also indicates the number of frequency domain units included in the multiple resources and/or the number of time domain units included in the multiple resources, so that the first device obtains the second information based on the first indication information.
  • the resources available during the time period are more appropriate.
  • the method further includes: obtaining a first model, the first model being used to obtain available resources in the second time period according to the first indication information.
  • available resources in the second time period can be obtained according to the first model and the first indication information.
  • the first indication information is input into the first model to obtain available resources in the second time period.
  • the first model is used to obtain available resources in the second time period according to the first indication information, including: the first model is used to obtain available resources in the second time period according to the first indication information.
  • the indication information and the first information obtain the available resources in the second time period, and the first information includes at least one of the following: a first time interval, a second time interval, a first throughput or a second throughput; wherein, the The first time interval is the interval between the last time the first device successfully sent data and the current time, and the second time interval is the first device other than the first device among the first devices competing for resources.
  • the interval between the last time when data is successfully sent and the current time, the first throughput is the throughput of the first device in the third time period before the second time period, and the second throughput is the third time period.
  • the available resources in the second time period can be obtained according to the first model, the first indication information and the first information.
  • the first indication information and the first information are input into the first model to obtain available resources in the second time period.
  • obtaining the first model includes: receiving second information from the second device, the second information being used to determine the first model; or; training to obtain The first model.
  • the first model can be trained by the second device, and the second information can be sent to the first device, so that the first device can obtain the first model based on the second information.
  • the first model can be trained by the first device.
  • the method further includes: sending data to the second device on the available resources.
  • the first device can send data to the second device on the correct available resources, so that the first device can send the data to the second device in time.
  • a communication method is provided.
  • the communication device that executes the method may be a second device; it may also be a module applied in the second device, such as a chip or a chip system.
  • the second device may be an access point.
  • the following description takes the execution subject as the second device as an example.
  • the method includes: determining a trigger frame and sending the trigger frame to the first device.
  • the trigger frame includes first indication information, and the first indication information is used to indicate at least one of the following: usage of multiple resources in the first time period or data transmission results on multiple resources in the first time period,
  • the first indication information is used by the first device to obtain available resources in a second time period after the first time period.
  • the second device may determine a trigger frame including the first indication information and send the trigger frame to the first device. Because the first indication information may indicate the usage of multiple resources in the first time period and/or the usage of multiple resources in the first time period, The data transmission result on the resource, so after receiving the trigger frame, the first device can obtain the available resources in the second time period after the first time period according to the first indication information. That is to say, when determining the available resources in the second time period, the first device considers the usage of multiple resources in the first time period, and/or the data transmission results on the multiple resources in the first time period.
  • the first device can adjust the resource usage policy in the second time period in time, so that the first device that has not competed for resources has priority in obtaining resources. In this way, the situation that the first device has no available resources for a long period of time can be avoided, thereby improving the throughput of the first device competing for resources and reducing the data transmission delay.
  • the trigger frame includes a first field, the first field carries the first indication information; the first field is public information based on the trigger type in the public information field. field; or, the first field is a user information field based on the trigger type among the user information fields in the user information list.
  • the meaning of a certain field in the trigger frame defined in the protocol can be modified so that the field carries the first indication information. Since the number of bytes occupied by the above fields is variable, it has less impact on the trigger frame defined in the protocol, making the modified trigger frame (i.e., the trigger frame involved in the embodiment of this application) more compatible. .
  • the trigger frame further includes a second field; when the value of the second field is the first value, the first field carries the first indication information.
  • the first field can flexibly carry the first indication information.
  • the value of the second field is made to be the first value, and the first field carries the first indication information.
  • the value of the second field can be set to a value other than the first value, and the first field does not carry the first indication information.
  • the second field is a trigger type field in the public information field; or , if the first field is a user information field based on the trigger type among the user information fields in the user information list, the second field is an association identifier field in the user information field.
  • whether the first field carries the first indication information can be indicated by the value of the trigger type field in the public information field or the value of the association identifier field in the user information field.
  • the first value is any one of the following values: 0, 2008 to 2045, or 2047 to 4094.
  • the first field carries the first indication information.
  • the first indication information is also used to indicate at least one of the following: the number of frequency domain units included in the multiple resources or the number of time domain units included in the multiple resources. quantity.
  • the first indication information also indicates the number of frequency domain units included in the multiple resources and/or the number of time domain units included in the multiple resources, so that the first device obtains the second information based on the first indication information.
  • the resources available during the time period are more appropriate.
  • the method further includes: generating a first model, the first model being used to obtain available resources in the second time period based on the first indication information;
  • the first device sends second information, and the second information is used by the first device to determine the first model.
  • the first model can be trained by the second device, and the second information can be sent to the first device, so that the first device can obtain the first model based on the second information.
  • the first model is used to obtain available resources in the second time period according to the first indication information, including: the first model is used to obtain available resources in the second time period according to the first indication information.
  • the indication information and the first information obtain the available resources in the second time period, and the first information includes at least one of the following: a first time interval, a second time interval, a first throughput or a second throughput; wherein, the The first time interval is the interval between the last time the first device successfully sent data and the current time, and the second time interval is the first device other than the first device among the first devices competing for resources.
  • the interval between the last time when data is successfully sent and the current time, the first throughput is the throughput of the first device in the third time period before the second time period, and the second throughput is the third time period.
  • the first device can obtain the available resources in the second time period according to the first model, the first indication information and the first information. For example, input the first indication information and the first information into the first model to obtain the of available resources.
  • a communication device for implementing the above method.
  • the communication device may be the first device in the above-mentioned first aspect, or a device including the above-mentioned first device.
  • the communication device includes corresponding modules, units, or means (means) for implementing the above method.
  • the modules, units, or means can be implemented by hardware, software, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • the communication device may include a transceiver module and a processing module.
  • the transceiver module which may also be called a transceiver unit, is used to implement the sending and/or receiving functions in the above first aspect and any possible implementation thereof.
  • the transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • This processing module can be used to implement the processing functions in the above first aspect and any possible implementation manner thereof.
  • the processing module may be, for example, a processor.
  • the transceiver module is configured to receive a trigger frame from the second device, where the trigger frame includes first indication information, and the first indication information is used to indicate at least one of the following: usage of multiple resources within a first time period or Data transmission results on multiple resources in the first time period; a processing module configured to obtain available resources in a second time period after the first time period according to the first indication information.
  • the transceiver module includes a sending module and a receiving module, respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation manner thereof.
  • the communication device can receive a trigger frame from the second device, and obtain the available resources in the second time period according to the first indication information in the trigger frame. Since the first indication information may indicate the usage of multiple resources in the first time period and/or the data transmission results on the multiple resources in the first time period, that is to say, the communication device determines the availability of the resources in the second time period. resources, the usage of multiple resources in the first time period and/or the data transmission results on multiple resources in the first time period are considered, so the communication device can promptly adjust the resource usage strategy in the second time period. , so that communication devices that have not competed for resources obtain resources first. In this way, the situation that the communication device has no available resources for a long period of time can be avoided, thereby improving the throughput of the communication device competing for resources and reducing the data transmission delay.
  • the first indication information may indicate the usage of multiple resources in the first time period and/or the data transmission results on the multiple resources in the first time period, that is to say, the communication device determines the availability of the resources in the second time
  • the trigger frame includes a first field, the first field carries the first indication information; the first field is a public information field based on the trigger type in the public information field; or, the first field One field is a user information field based on the trigger type among the user information fields in the user information list.
  • the meaning of a certain field in the trigger frame defined in the protocol can be modified so that the field carries the first indication information. Since the number of bytes occupied by the above fields is variable, it has less impact on the trigger frame defined in the protocol, making the modified trigger frame (i.e., the trigger frame involved in the embodiment of this application) more compatible. .
  • the trigger frame further includes a second field; when the value of the second field is the first value, the first field carries the first indication information.
  • the first field can flexibly carry the first indication information.
  • the value of the second field is made to be the first value, and the first field carries the first indication information.
  • the value of the second field can be set to a value other than the first value, and the first field does not carry the first indication information.
  • the second field is a trigger type field in the public information field; or, if the first field is a trigger type-based user information field among the user information fields in the user information list, and the second field is an association identifier field in the user information field.
  • whether the first field carries the first indication information can be indicated by the value of the trigger type field in the public information field or the value of the association identifier field in the user information field.
  • the first value is any one of the following values: 0, 2008 to 2045, or 2047 to 4094.
  • the first field carries the first indication information.
  • the first indication information is also used to indicate at least one of the following: the number of frequency domain units included in the multiple resources or the number of time domain units included in the multiple resources.
  • the first indication information also indicates the number of frequency domain units included in the multiple resources and/or the number of time domain units included in the multiple resources, so that the communication device obtains the second time according to the first indication information.
  • the available resources within the segment are more appropriate.
  • the processing module is also used to obtain a first model, which is used to obtain the first model according to the first
  • the indication information obtains the available resources within the second time period.
  • available resources in the second time period can be obtained according to the first model and the first indication information.
  • the first indication information is input into the first model to obtain available resources in the second time period.
  • the first model is used to obtain available resources in the second time period according to the first indication information, including: the first model is used to obtain available resources in the second time period according to the first indication information and first information.
  • the available resources in the second time period are obtained, and the first information includes at least one of the following: a first time interval, a second time interval, a first throughput or a second throughput; wherein the first time interval is The interval between the last time the communication device successfully sent data and the current time.
  • the second time interval is the last time the communication device other than the communication device successfully sent data among the communication devices competing for resources and the current time.
  • the first throughput is the throughput of the communication device in the third time period before the second time period, and the second throughput is among the communication devices competing for resources in the third time period. , the total throughput of communication devices other than this communication device.
  • the available resources in the second time period can be obtained according to the first model, the first indication information and the first information.
  • the first indication information and the first information are input into the first model to obtain available resources in the second time period.
  • the processing module is specifically configured to receive second information from the second device through the transceiver module, and the second information is used to determine the first model; or; the processing module is specifically configured to use The first model is obtained through training.
  • the first model can be trained by the second device, and the second information can be sent to the communication device, so that the communication device can obtain the first model based on the second information.
  • the first model can be trained by the communication device.
  • the transceiver module is also configured to send data to the second device on the available resources.
  • the communication device can send data to the second device on the correct available resources, so that the communication device can send the data to the second device in time.
  • a communication device for implementing the above method.
  • the communication device may be the second device in the above second aspect, or a device including the above second device.
  • the communication device includes corresponding modules, units, or means (means) for implementing the above method.
  • the modules, units, or means can be implemented by hardware, software, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • the communication device may include: a processing module and a transceiver module.
  • This processing module can be used to implement the processing functions in the above second aspect and any possible implementation manner thereof.
  • the processing module may be, for example, a processor.
  • the transceiver module which may also be called a transceiver unit, is used to implement the sending and/or receiving functions in the above second aspect and any possible implementation thereof.
  • the transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the processing module is configured to determine a trigger frame.
  • the trigger frame includes first indication information.
  • the first indication information is used to indicate at least one of the following: the usage of multiple resources in the first time period or the first time period. Data transmission results on multiple resources within; a transceiver module, configured to send the trigger frame to the first device, and the first indication information is used by the first device to obtain the available data in the second time period after the first time period. resource.
  • the communication device may determine a trigger frame including the first indication information, and send the trigger frame to the first device. Since the first indication information may indicate the usage of multiple resources in the first time period and/or the data transmission results on the multiple resources in the first time period, after receiving the trigger frame, the first device may, according to the first indication, The information obtains available resources in a second time period after the first time period. That is to say, when determining the available resources in the second time period, the first device considers the usage of multiple resources in the first time period, and/or the data transmission results on the multiple resources in the first time period. , so the first device can adjust the resource usage policy in the second time period in time, so that the first device that has not competed for resources has priority in obtaining resources. In this way, the situation that the first device has no available resources for a long period of time can be avoided, thereby improving the throughput of the first device competing for resources and reducing the data transmission delay.
  • the trigger frame includes a first field, the first field carries the first indication information; the first field is a public information field based on the trigger type in the public information field; or, the first field One field is a user information field based on the trigger type among the user information fields in the user information list.
  • the meaning of a certain field in the trigger frame defined in the protocol can be modified so that the field carries the first indication information. Since the number of bytes occupied by the above fields is variable, it has less impact on the trigger frame defined in the protocol, making the modified trigger frame (i.e., the trigger frame involved in the embodiment of this application) more compatible. .
  • the trigger frame further includes a second field; when the value of the second field is the first value, the first field carries the first indication information.
  • the first field can flexibly carry the first indication information.
  • the value of the second field is made to be the first value, and the first field carries the first indication information.
  • the value of the second field can be set to a value other than the first value, and the first field does not carry the first indication information.
  • the second field is a trigger type field in the public information field; or, if the first field is a trigger type-based user information field among the user information fields in the user information list, and the second field is an association identifier field in the user information field.
  • whether the first field carries the first indication information can be indicated by the value of the trigger type field in the public information field or the value of the association identifier field in the user information field.
  • the first value is any one of the following values: 0, 2008 to 2045, or 2047 to 4094.
  • the first field carries the first indication information.
  • the first indication information is also used to indicate at least one of the following: the number of frequency domain units included in the multiple resources or the number of time domain units included in the multiple resources.
  • the first indication information also indicates the number of frequency domain units included in the multiple resources and/or the number of time domain units included in the multiple resources, so that the first device obtains the second information based on the first indication information.
  • the resources available during the time period are more appropriate.
  • the processing module is also used to generate a first model, the first model is used to obtain the available resources in the second time period according to the first indication information; the transceiver module is also used to send The first device sends second information, and the second information is used by the first device to determine the first model.
  • the communication device can train the first model and send the second information to the first device, so that the first device obtains the first model based on the second information.
  • the first model is used to obtain available resources in the second time period according to the first indication information, including: the first model is used to obtain available resources in the second time period according to the first indication information and first information.
  • the available resources in the second time period are obtained, and the first information includes at least one of the following: a first time interval, a second time interval, a first throughput or a second throughput; wherein the first time interval is The interval between the last time the first device successfully sent data and the current time.
  • the second time interval is the last time the first device other than the first device successfully sent data among the first devices competing for resources.
  • the interval between time and the current time, the first throughput is the throughput of the first device in the third time period before the second time period, and the second throughput is the resource in the third time period.
  • the first device can obtain the available resources in the second time period according to the first model, the first indication information and the first information. For example, the first indication information and the first information are input into the first model to obtain available resources in the second time period.
  • a fifth aspect provides a communication device, including: a processor; the processor is configured to be coupled to a memory, and after reading instructions in the memory, execute the method as described in any of the above aspects according to the instructions.
  • the communication device may be the first device in the first aspect, or a device including the first device; or, the communication device may be the second device in the second aspect, or a device including the second device.
  • the communication device further includes a memory, and the memory is used to store necessary program instructions and data.
  • the communication device is a chip or a chip system.
  • the communication device when it is a chip system, it may be composed of a chip, or may include a chip and other discrete devices.
  • a sixth aspect provides a communication device, including: a processor and an interface circuit; the interface circuit is used to receive a computer program or instructions and transmit them to the processor; the processor is used to execute the computer program or instructions to enable the communication
  • the device performs the method described in any of the above aspects.
  • the communication device is a chip or a chip system.
  • the communication device may be composed of a chip, or may include a chip and other discrete devices.
  • a computer-readable storage medium is provided. Instructions are stored in the computer-readable storage medium, and when run on a computer, the computer can perform the method described in any of the above aspects.
  • a computer program product containing instructions which, when run on a computer, enables the computer to execute the method described in any of the above aspects.
  • a ninth aspect provides a communication system, which includes a first device for performing the method described in the first aspect and a second device used for performing the method described in the second aspect.
  • Figure 1 is a schematic diagram of a neural network provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of calculation of neurons provided by the embodiment of the present application.
  • Figure 3A is a schematic diagram of the UORA mechanism provided by the embodiment of the present application.
  • Figure 3B is a schematic diagram of the frame structure of a trigger frame provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of the communication system architecture provided by the embodiment of the present application.
  • Figure 5 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart 1 of the communication method provided by the embodiment of the present application.
  • Figure 7 is a schematic diagram of the first instruction information provided by the embodiment of the present application.
  • Figure 8 is a schematic diagram of the simulation results of the total throughput of sites competing for resources based on the communication method provided by the embodiment of the present application and the total throughput of sites competing for resources under the UORA mechanism;
  • Figure 9 is a schematic diagram of a network device sending a trigger frame provided by an embodiment of the present application.
  • Figure 10 is a schematic flowchart 2 of the communication method provided by the embodiment of the present application.
  • Figure 11 is a schematic diagram of the first model provided by the embodiment of the present application.
  • Figure 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Neural network is a machine learning technology that simulates the neural network of the human brain in the hope of achieving artificial intelligence.
  • a neural network can include at least three layers, namely an input layer, a hidden layer (also called an intermediate layer) and an output layer. Deeper neural networks may contain more hidden layers between the input and output layers.
  • each layer can include at least one neuron, and the neurons in two adjacent layers can be connected and correspond to a weight. Two neurons can be connected through an activation function or directly. Neurons in the hidden and output layers can correspond to a bias.
  • the above-mentioned weights and biases can be assigned an initial value, and the above-mentioned weights and/or biases can be updated through training, so that the deviation between the results obtained according to the neural network and the actual results is smaller.
  • FIG. 1 it is a schematic diagram of a neural network.
  • the neural network shown in Figure 1 includes 3 layers, namely input layer, hidden layer and output layer.
  • the input layer includes 3 neurons
  • the hidden layer includes 4 neurons
  • the output layer includes 2 neurons
  • the neurons in each layer are fully connected to the neurons in the next layer, that is, the neurons in each layer are fully connected to the neurons in the next layer. All neuronal connections.
  • Each connection between neurons can correspond to a weight, and these weights can be updated through training.
  • Each neuron in the hidden and output layers can also correspond to a bias, and these biases can also be updated through training.
  • Figure 1 is only an example of a neural network.
  • the neural network can also be in other forms, for example, include more or fewer layers than the neural network shown in Figure 1, or include more than the neural network shown in Figure 1.
  • the neural network shown in 1 has more or fewer neurons, without limitation.
  • updating/training the neural network refers to updating/training parameters in the neural network, such as the above-mentioned weights and/or the above-mentioned biases. It is understandable that after knowing the structure of the neural network (such as the layers included in the neural network, the number of neurons contained in each layer, and how the output of the previous neuron is input to the subsequent neuron (i.e., the connection between neurons) relationship)), and the parameters in the neural network, then all the information of the neural network is known, that is, the neural network is obtained.
  • the input parameters can be input into the neural network, and the calculation can be performed based on the parameters in the neural network to obtain the output result.
  • the input parameters are first input to the neurons of the input layer.
  • the neurons of the input layer calculate the output based on the input parameters and input the output to the neurons of the next level.
  • the neurons of the input layer do not perform calculations.
  • the input parameters are directly input into the next-level neurons (such as neurons in the hidden layer).
  • the neurons in the hidden layer/output layer after the input layer can correspond to at least one input connection. These neurons can calculate the output based on the input, and use the calculated output as the input of the next level neuron until the neural network is obtained. Output results.
  • FIG. 2 it is a calculation schematic diagram of the neuron 101 in Figure 1.
  • neuron 101 corresponds to three inputs, namely input 1, input 2 and input 3.
  • input 1 is the output of neuron 104
  • input 2 is the output of neuron 105
  • input 3 is the output of neuron 106.
  • y represents the output result of the k-layer neural network
  • x represents the input of the neural network
  • w i represents the weight of the i-th layer neural network
  • b i represents the bias of the i-th layer neural network
  • the access point can send trigger frames (trigger frames, TF) to multiple stations.
  • the trigger frame can indicate parameters such as the resource unit (RU) used for random access (RA) and the range of the contention window.
  • the competition window is a window in which multiple sites compete for resources.
  • each station After receiving the trigger frame, each station generates Orthogonal Frequency Division Multiple Access Random Access Backoff (OFDMA random access backoff, OBO) within the scope of the competition window, and competes for resources based on OBO.
  • the station that competes for the resource performs data transmission on the competed resource. For example, it sends a physical layer protocol data unit (PPDU) to the access point.
  • the PPDU includes the data sent to the access point. Sites that have not competed for resources will compete for resources again after receiving the trigger frame next time.
  • the access point sends trigger frame 1 to site 1, site 2, site 3 and site 4.
  • This trigger frame 1 indicates that the RUs used for random access are RU2 and RU3, and the contention window ranges from 7 to 63.
  • the OBOs generated by sites 1 to 4 within the range of the initial competition window (0 to 7) are 2, 1, 4 and 5 respectively.
  • the OBOs of sites 1 to 4 are 0, -1, 2 and 3 respectively minus the number M of RUs used for random access (the number of RUs used for random access is 2 in this example).
  • the sites that satisfy OBO-M ⁇ 0, namely site 1 and site 2 can randomly select one RU among the RUs used for random access for transmission.
  • site 1 sends PPDU1 on RU3, and site 2 sends PPDU2 on RU2.
  • PPDU1 includes the data sent by station 1 to the access point
  • PPDU2 includes the data sent by station 2 to the access point.
  • the access point feeds back a block acknowledgment (BA) message to the station to inform the station whether the data was sent successfully. Subsequently, the access point sends trigger frame 2 to site 1, site 2, site 3, and site 4.
  • BA block acknowledgment
  • site 1 and site 2 can respectively generate new OBOs according to the range of the competition window indicated by trigger frame 2, while sites 3 and 4 do not regenerate OBOs, but use the last generated OBO, that is Site 3 has an OBO of 2 and site 4 has an OBO of 3. Subsequently, site 1 to site 4 compete for resources again based on their own OBO.
  • the PPDU and the trigger frame can be separated by a short interframe space (SIFS), and the PPDU and the BA can also be separated by a SIFS.
  • SIFS short interframe space
  • the access point can send a trigger frame to the station.
  • the trigger frame may indicate to the station: the usage of multiple resources in the first time period, and/or the data transmission results on the multiple resources in the first time period.
  • the station can obtain the available resources in the second time period after the first time period based on the above information indicated by the trigger frame. Since the site considers the usage of multiple resources in the first time period and/or the data transmission results on multiple resources in the first time period when determining the available resources in the second time period, the site can promptly Adjust the resource usage policy in the second time period so that sites that have not competed for resources have priority in obtaining resources.
  • the frame structure of the trigger frame may be as shown in Figure 3B.
  • the trigger frame includes a frame control field (occupying 2 bytes), a duration field (occupying 2 bytes), and a receiving address (receiver address, RA) field (occupying 6 words). section), transmitter address (TA) field (occupies 6 bytes), public information (common info) field (occupies 8 or more bytes), user information list (user info list) field (occupies 6 bytes) The number of bytes is variable), the padding field (the number of bytes occupied is variable), and the frame check sequence (FCS) field (occupies 4 bytes).
  • the frame control field, duration field, RA field and TA field are included in the media access control (media access control, MAC) header (MAC header).
  • the public information fields include the trigger type field (occupies 4 bits), the uplink length (uplink length) field (occupies 12 bits), the more trigger frame (more TF) field (occupies 1 bit), Requires carrier sense (carrier sense required) field (occupies 1 bit), uplink bandwidth (uplink bandwidth) field (occupies 2 bits), guard interval (guard interval, GI) and high efficiency (HE) long training sequence (long training) field, LTF) type (type) field (occupies 2 bits), multi-user multiple-input multiple-output (MU-MIMO) HE-LTF mode (mode) field (occupies 1 bit), The number of HE-LTE symbols and midamble periodicity field (occupies 3 bits), the uplink space time block code (UL space time block code, UL STBC) field (occupies 1 bit), Low density parity check code (LDPC) extra symbol segment (LDPC extra symbol segment) field (occupies 1 bit), AP transmit power (AP Tx power) field (occupies 4 bits
  • the meanings corresponding to the values of the trigger type field in the public information field are shown in Table 1.
  • the value of the trigger type field is 0, it means that the trigger type field indicates the basic type (Basic); if the value of the trigger type field is 1, it means that the trigger type field indicates beamforming report polling (beamforming report poll, BFRP); if the value of the trigger type field is 2, it means that the trigger type field indicates a multi-user block ack request (MU-BAR); if the value of the trigger type field is 3, it means the trigger The type field indicates multi-user request to send (MU-RTS); if the value of the trigger type field is 4, it means that the trigger type field indicates buffer status report poll (BSRP); if If the value of the trigger type field is 5, it means that the trigger type field indicates group cast retransmission (GCR) MU-BAR; if the value of the trigger type field is 6, it means that the trigger type field indicates bandwidth query report polling ( bandwidth query report poll, BQRP); if
  • the user information list field may include at least one user information field.
  • the user information field may include the association identifier (AID12) field (occupying 12 bits), the RU allocation (RU allocation) field (occupying 8 bits), and the uplink forward error correction code type (UL FEC coding type) field (occupying 1 bit) , Uplink High Efficiency Modulation and Coding Scheme (UL HE-MCS) field (occupies 4 bits), Uplink Dual Carrier Modulation (UL DCM) field (occupies 1 bit), Spatial Stream Allocation/Random Access RU Information (SS allocation/RA- RU information) field (occupies 6 bits), uplink target receive power (UL target receive power) field (occupies 7 bits), reserved field (occupies 1 bit) and user information based on trigger type (trigger dependent user info ) field (the number of occupied bits is variable).
  • AID12 association identifier
  • RU allocation RU allocation
  • occupying 8 bits the uplink forward error correction code type
  • UL FEC coding type
  • the method provided by this application can be applied to wireless local area network (WLAN) systems, such as Wi-Fi, etc.
  • WLAN wireless local area network
  • the method provided in this application can be applied to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 series protocols, such as 802.11a/b/g protocol, 802.11n protocol, 802.11ac protocol, 802.11ax protocol, 802.11 be protocol, Wi-Fi 7, Wi-Fi 8, extremely high throughput (EHT) or next-generation protocols, etc., can also be applied to ultra-wideband (UWB) wireless personal area network systems. Sensing systems are not listed here.
  • IEEE Institute of Electrical and Electronics Engineers 802.11 series protocols, such as 802.11a/b/g protocol, 802.11n protocol, 802.11ac protocol, 802.11ax protocol, 802.11 be protocol, Wi-Fi 7, Wi-Fi 8, extremely high throughput (EHT) or next-generation protocols, etc.
  • EHT extremely high throughput
  • UWB ultra-wideband
  • the method provided by this application can also be applied to various communication systems, such as cellular systems (including but not limited to: long term evolution (LTE) systems, fifth generation (5th-generation, 5G) communication systems, and future New communication systems (such as 6G) emerging in the development of communications (such as 6G, etc.), Internet of Things (IoT) systems, narrowband Internet of things (NB-IoT) systems, and other short-distance communication systems (including But not limited to: Bluetooth, UWB, etc.
  • LTE long term evolution
  • 5th-generation, 5G fifth generation
  • 6G future New communication systems
  • IoT Internet of Things
  • NB-IoT narrowband Internet of things
  • other short-distance communication systems including But not limited to: Bluetooth, UWB, etc.
  • the method provided by this application can be applied in the scenario of data transmission between one node and one or more nodes.
  • single user uplink/downlink transmission multi-user uplink/downlink transmission.
  • Any of the above nodes may be a communication device in a wireless communication system, that is, the method provided by this application may be implemented by a communication device in the wireless communication system.
  • the communication device may be at least one of an access point or a station.
  • the communication system 40 may include one or more first devices 401 (only one is shown in Figure 4) and second devices 402-404 that can communicate with the first device 401.
  • a first device can provide wireless access services for a second device.
  • the first device corresponds to a service coverage area
  • the second device entering the area can communicate with the first device to receive the wireless access service provided by the first device.
  • the first device in this embodiment of the present application may be any device with wireless transceiver functions. Including but not limited to: access point, evolutionary base station (NodeB or eNB or e-NodeB, evolutionary Node B) in LTE, base station (gNodeB or gNB) or transceiver point (transmission receiving point/transmission reception point, TRP), 3GPP subsequent evolution base stations, wireless relay nodes, wireless backhaul nodes, etc.
  • NodeB or eNB or e-NodeB evolutionary Node B
  • gNodeB or gNB base station
  • transceiver point transmission receiving point/transmission reception point, TRP
  • 3GPP subsequent evolution base stations wireless relay nodes
  • wireless backhaul nodes etc.
  • the access point can support communication or sensing using the WLAN protocol, and has the function of communicating or sensing with other devices in the WLAN network (such as sites or other access points). Of course, it can also have the function of communicating with other devices. or perceived function.
  • the access point is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • an access point may be called an access point station (AP STA).
  • the access point in the embodiment of this application is a device that provides services for the site and can support the 802.11 series protocols.
  • the access point can be an access point for a terminal (such as a mobile phone) to enter a wired (or wireless) network. It is mainly deployed inside homes, buildings, and campuses. The typical coverage radius is tens of meters to hundreds of meters. Of course, it can also Deployed outdoors.
  • the access point can be a communication server, router, switch, bridge and other communication entities; the access point can include various forms of macro base stations, micro base stations, Relay stations, etc., of course, access points can also be chips and processing systems in these various forms of equipment, thereby realizing the methods and functions of the embodiments of the present application.
  • the access point in this application can be an EHT AP, or an access point of future Wi-Fi standards, etc.
  • the base station may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc.
  • Multiple base stations may support networks with the same technology mentioned above, or may support networks with different technologies mentioned above.
  • a base station may contain one or more co-located or non-co-located TRPs.
  • the second device in the embodiment of the present application is a device with a wireless transceiver function. Including but not limited to: sites, terminals, etc.
  • the station can support communication or sensing using the WLAN protocol, and has the ability to communicate or sense with other stations or access points in the WLAN network.
  • a station can be called a non-access point station (non-AP STA).
  • non-AP STA non-access point station
  • a station is any user communication device that allows the user to communicate with an access point or sense and thereby communicate with a WLAN.
  • the site can be a wireless communication chip, wireless sensor or wireless communication terminal, etc., and can also be called a user.
  • the site can be a mobile phone that supports Wi-Fi communication function, a tablet computer that supports Wi-Fi communication function, a set-top box that supports Wi-Fi communication function, a smart TV that supports Wi-Fi communication function, or a mobile phone that supports Wi-Fi communication function.
  • the terminal may also be called a terminal device, and the terminal device may be a user equipment (UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with wireless communication functions.
  • the UE may be a mobile phone, a tablet, a computer with wireless transceiver functions, or a station (STA).
  • the terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in driverless driving, a wireless terminal in telemedicine, or a smart terminal.
  • the terminal may be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • a wearable device is not only a hardware device, but also a device that achieves powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include devices that are full-featured, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be integrated with other devices such as Devices used with smartphones, such as various smart bracelets, smart jewelry, etc. for monitoring physical signs.
  • the terminal can be a terminal in the Internet of things (IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect objects to the network through communication technology, thereby realizing the realization of human An intelligent network that interconnects machines and things.
  • the terminal in this application may be a terminal in machine type communication (MTC).
  • MTC machine type communication
  • the terminal of this application may be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit built into the vehicle as one or more components or units.
  • the vehicle uses the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component , vehicle-mounted chip or vehicle-mounted unit can implement the method of this application.
  • the communication system shown in Figure 4 may be a WLAN system.
  • WLAN systems can provide high-speed and low-latency transmission.
  • WLAN systems will be used in more scenarios or industries, such as in the Internet of Things industry, in the Internet of Vehicles industry or in Banking industry, used in corporate offices, sports venues and exhibition halls, concert halls, hotel rooms, dormitories, wards, classrooms, supermarkets, squares, streets, production workshops and warehousing, etc.
  • devices that support WLAN communication or sensing can be sensor nodes in smart cities (such as smart water meters, smart electricity meters, smart air detection nodes), smart devices in smart homes (such as smart cameras) , projectors, displays, TVs, speakers, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (such as AR, VR and other wearable devices), smart devices in smart offices (such as printers, projectors, etc.) instruments, loudspeakers, speakers, etc.), Internet of Vehicles equipment in the Internet of Vehicles, infrastructure in daily life scenes (such as vending machines, self-service navigation stations in supermarkets, self-service checkout equipment, self-service ordering machines, etc.), and Equipment for large sports and music venues, etc.
  • smart cities such as smart water meters, smart electricity meters, smart air detection nodes
  • smart devices in smart homes such as smart cameras
  • projectors displays, TVs, speakers, refrigerators, washing machines, etc.
  • nodes in the Internet of Things such as AR, VR and other wearable devices
  • smart devices in smart offices
  • access points and sites can be devices used in the Internet of Vehicles, IoT nodes, sensors, etc. in the Internet of Things (IoT), smart cameras in smart homes, and smart remote controls. Smart water and electricity meters, as well as sensors in smart cities, etc.
  • IoT Internet of Things
  • smart cameras in smart homes
  • smart remote controls Smart water and electricity meters, as well as sensors in smart cities, etc.
  • the device for realizing the function of the first device may be the first device; it may also be a device that can support the first device to realize the function, such as a chip system, and the device may be installed on In the first device or used in conjunction with the first device.
  • the device used to implement the function of the second device may be the second device; it may also be a device that can support the second device to implement the function, such as a chip system, and the device may be installed in the second device Or use it with a second device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication system 40 shown in FIG. 4 is only used as an example and is not used to limit the technical solution of the present application. Those skilled in the art should understand that during specific implementation, the communication system 40 may also include other devices, and the number of the first device and the second device may also be determined according to specific needs without limitation.
  • each network element or device for example, the first device 401, the second device 402, the second device 403 or the second device 404 in Figure 4 in the embodiment of this application can also be called a communication device, which can be A general-purpose device or a special-purpose device, the embodiments of this application do not specifically limit this.
  • each network element or device (such as the first device 401, the second device 402, the second device 403 or the second device 404) in Figure 4 in the embodiment of this application can be implemented by one device, or they can be It can be jointly implemented by multiple devices, or can also be implemented by one or more functional modules in one device, which is not specifically limited in the embodiments of the present application.
  • the above functions can be either network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or virtualization instantiated on a platform (for example, a cloud platform) Function.
  • each network element or device shown in Figure 4 can adopt the composition structure shown in Figure 5, or Includes the components shown in Figure 5.
  • FIG. 5 shows a schematic diagram of the hardware structure of a communication device applicable to embodiments of the present application.
  • the communication device 50 includes at least one processor 501 and at least one communication interface 504, used to implement the method provided by the embodiment of the present application.
  • the communication device 50 may also include a communication line 502 and a memory 503 .
  • the processor 501 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors used to control the execution of the program of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication line 502 may include a path, such as a bus, that carries information between the above-mentioned components.
  • Communication interface 504 is used to communicate with other devices or communication networks.
  • the communication interface 504 can be any device such as a transceiver, such as an Ethernet interface, a radio access network (RAN) interface, a wireless local area networks (WLAN) interface, a transceiver, and pins , bus, or transceiver circuit, etc.
  • a transceiver such as an Ethernet interface, a radio access network (RAN) interface, a wireless local area networks (WLAN) interface, a transceiver, and pins , bus, or transceiver circuit, etc.
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 503 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory (RAM)) or other type that can store information and instructions.
  • a dynamic storage device can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other medium for access, but not limited to this.
  • the memory may exist independently and be coupled to the processor 501 through a communication line 502 .
  • Memory 503 may also be integrated with processor 501.
  • the memory provided by the embodiment of the present application may generally be non-volatile.
  • the memory 503 is used to store computer execution instructions involved in executing the solutions provided by the embodiments of this application, and the processor 501 controls the execution.
  • the processor 501 is used to execute computer execution instructions stored in the memory 503, thereby implementing the method provided by the embodiment of the present application.
  • the processor 501 may also perform processing-related functions in the methods provided in the following embodiments of the present application, and the communication interface 504 is responsible for communicating with other devices or communication networks. This application implements The example does not specifically limit this.
  • the computer-executed instructions in the embodiments of the present application may also be called application codes, which are not specifically limited in the embodiments of the present application.
  • the coupling in the embodiment of this application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • the processor 501 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 5 .
  • the communication device 50 may include multiple processors, such as the processor 501 and the processor 507 in FIG. 5 .
  • processors may be a single-CPU processor or a multi-CPU processor.
  • a processor here may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the communication device 50 may also include an output device 505 and/or an input device 506.
  • Output device 505 is coupled to processor 501 and can display information in a variety of ways.
  • the output device 505 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (cathode ray tube, CRT) display device, or a projector (projector), etc.
  • Input device 506 is coupled to processor 501 and can receive user input in a variety of ways.
  • the input device 506 may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.
  • composition structure shown in Figure 5 does not constitute a limitation on the communication device.
  • the communication device may include more or less components than shown in the figure, or a combination of certain components. components, or different component arrangements.
  • transmission can be understood as sending and/or receiving according to the specific context.
  • Transport can be a noun or a verb.
  • transmission is often used instead of sending and/or receiving.
  • the phrase “transmitting data” can be understood as “sending data” from the perspective of the sender, and “receiving data” from the perspective of the receiving end.
  • A/B may indicate A or B; "and/or” may be used to describe There are three relationships between associated objects.
  • a and/or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.
  • a and B can be singular or plural.
  • expressions similar to "at least one of A, B and C" or "at least one of A, B or C” are often used to mean any of the following: A alone; B alone; alone C exists; A and B exist simultaneously; A and C exist simultaneously; B and C exist simultaneously; A, B, and C exist simultaneously.
  • the above is an example of three elements A, B and C to illustrate the optional items of this project. When there are more elements in the expression, the meaning of the expression can be obtained according to the aforementioned rules.
  • words such as “first” and “second” may be used to distinguish technical features with the same or similar functions.
  • the words “first”, “second” and other words do not limit the quantity and execution order, and the words “first” and “second” do not limit the number and execution order.
  • words such as “exemplary” or “for example” are used to express examples, illustrations or illustrations, and any embodiment or design solution described as “exemplary” or “for example” shall not be interpreted. To be more preferred or advantageous than other embodiments or designs.
  • the use of words such as “exemplary” or “such as” is intended to present relevant concepts in a concrete manner that is easier to understand.
  • an embodiment means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments are not necessarily referred to the same embodiment throughout this specification. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It can be understood that in the various embodiments of the present application, the size of the sequence numbers of each process does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be determined by the execution order of the embodiments of the present application. The implementation process constitutes no limitation.
  • the first device and/or the second device can perform some or all of the steps in the embodiment of the present application. These steps are only examples. The embodiment of the present application can also perform other steps or various other steps. Variations of steps. In addition, each The steps may be performed in different orders presented in the embodiments of the present application, and it may not be necessary to perform all the steps in the embodiments of the present application.
  • the following uses the first device as an access point and the second device as a site as an example to introduce the communication method provided by the embodiment of the present application.
  • the communication method may include the following steps:
  • the access point determines the trigger frame.
  • the access point may be the first device 401 in Figure 4.
  • the trigger frame includes first indication information.
  • the first indication information may be used to indicate at least one of the following: usage of multiple resources within the first time period or data transmission results on multiple resources within the first time period.
  • the first time period is a period of time before the access point determines or sends a trigger frame.
  • the first time period includes at least one time domain unit before the access point determines or sends a trigger frame.
  • the time domain unit is a time domain unit, which may include at least one symbol, at least one sub-slot, at least one time slot, at least one sub-frame or at least one frame, etc., without limitation.
  • the first time period includes at least one of the multiple time slots between the time slot in which the access point last sent a trigger frame and the time slot in which the access point sent the trigger frame this time. time slot. For example, if the access point sent a trigger frame in time slot 0 last time and sends a trigger frame in time slot 13 this time, the first time period includes at least one time slot from time slot 0 to time slot 12. Alternatively, the first time period includes at least one time slot among multiple time slots between the time slot in which the trigger frame was last sent and the time slot in which the trigger frame is sent this time on the access point.
  • the first time period includes timeslot 0 to timeslot 19. at least one time slot in .
  • the first time period includes at least one time slot among a plurality of time slots on the access point between a time slot in which the trigger frame was last transmitted and a time slot in which the trigger frame was last transmitted.
  • the usage of multiple resources in the first time period may indicate the usage of each of the multiple resources in the first time period.
  • the usage of any resource in the first time period includes that the resource is used in the first time period or the resource is not used in the first time period.
  • the data transmission results on the plurality of resources within the first time period may indicate the data transmission results on each of the plurality of resources within the first time period.
  • the data transmission result on any resource in the first time period may include data transmission on the resource in the first time period or no data transmission on the resource in the first time period, or any resource in the first time period.
  • the data transmission results on the resource may include successful data transmission on the resource within the first time period, failure to transmit data on the resource within the first time period, or resource collision on the resource within the first time period.
  • the resources described in the embodiments of this application may refer to time-frequency resources.
  • the multiple resources are resources used for random access.
  • the trigger frame is also used to indicate the RUs that can be used for RA in the second time period after the first time period.
  • the second time period may include at least one time domain unit.
  • the number of time domain units included in the second time period may be the same as or different from the number of time domain units included in the first time period.
  • the number of frequency domain units corresponding to the second time period may be the same as or different from the number of frequency domain units corresponding to the first time period.
  • the frequency domain unit is a frequency domain unit, which may include at least one RU, at least one resource block (RB), at least one resource element (resource element, RE) or at least one resource block group (resource block). group, RBG), etc., are not restricted.
  • the first indication information also indicates at least one of the following: the number of frequency domain units included in the multiple resources or the number of time domain units included in the multiple resources.
  • the usage of each resource can be indicated by 1 bit. If the value of the 1 bit is 0, it can mean The resource has not been used in the first time period. If the value of the 1 bit is 1, it can mean that the resource has been used in the first time period, and vice versa.
  • the data transmission results on each resource can be indicated by 1 bit. If the value of the 1 bit is 0 may indicate that no data is transmitted on the resource during the first time period. If the value of the 1 bit is 1, it may indicate that data is transmitted on the resource during the first time period, and vice versa. Alternatively, the usage of each resource can be indicated by 1 bit, and the result of data transmission on each resource can be indicated by 2 bits. If the value of the two bits is 00, it means that the data transmission on the resource during the first time period failed. If the value of the two bits is 01, it means that the data transmission on the resource during the first time period was successful. If the value of the two bits is 10, it means that a collision occurred on the resource within the first time period.
  • a possible design is that if the first indication information indicates the usage of multiple resources in the first time period and the usage of multiple resources in the first time period,
  • the data transmission result on each resource can be indicated by 1 bit, and the specific indication method can be as described above.
  • the data transmission result on each resource can be indicated by 1 bit or 2 bits, and the specific indication method can be as described above.
  • the first indication information indicates the usage of multiple resources in the first time period, the data transmission results on the multiple resources in the first time period, the number and number of frequency domain units included in the multiple resources, The number of time domain units included in the resource, then the first indication information may include multiple bits, and the multiple bits may be divided into 4 parts (such as the first part, the second part, the third part and the fourth part). Different parts The number of bits included may be the same or different. For example, the first part of bits is used to indicate the number of frequency domain units included in multiple resources, the second part of bits is used to indicate the number of time domain units included in multiple resources, and the third part is used to indicate multiple Resource usage, the fourth part is used to indicate the data transmission results on multiple resources in the first time period.
  • the usage of each resource can be indicated by 1 bit, and the specific indication method can be as described above.
  • the data transmission result on each resource can be indicated by 1 bit or 2 bits, and the specific indication method can be as described above.
  • the first indication information may be as follows As shown in Figure 7. It can be understood that FIG. 7 is only an example of the first indication information. In specific applications, the first indication information can also be in other forms without limitation.
  • the trigger frame may include a first field.
  • the first field may carry first indication information. That is to say, the meaning of a certain field in the trigger frame defined in the protocol can be modified so that the field carries the first indication information. Alternatively, a new field can be added to the trigger frame to carry the first indication information.
  • the first indication can be Information is carried in public information fields, user information list fields, or fill fields. Since the number of bytes occupied by the above fields is variable, it has less impact on the trigger frame defined in the protocol.
  • the first indication information may be specifically carried in the public information field based on the trigger type.
  • the first field is a public information field based on the trigger type among the public information fields.
  • the first indication information is carried in the user information list field.
  • the first indication information may be specifically carried in the user information field based on the trigger type.
  • the first field is the user information field based on the trigger type among the user information fields in the user information list.
  • the first field can be made to carry the first indication information. That is to say, the trigger frame also includes a second field, and when the value of the second field is the first value, the first field carries the first indication information.
  • the second field is a trigger type field in the public information field; or if the first field is a trigger type field in the user information list If the user information field in the user information field is based on the trigger type, the second field is the association identifier field in the user information field.
  • the value of the trigger type field can be as shown in Table 1.
  • the second field as the trigger type field in the public information field. If the value of the second field is any one from 0 to 7, the public information field based on the trigger type additionally carries the first indication information. That is, the public information field based on the trigger type carries the information originally specified by the protocol and the first indication information. At this time, the first value is any one from 0 to 7. Taking the value of the second field as 5 (that is, the first value is 5) as an example, the public information field based on the trigger type carries the block confirmation request control (BAR Control) field, the block confirmation request information (BAR information) field and the first indication. information.
  • BAR Control block confirmation request control
  • BAR information block confirmation request information
  • the block confirmation request control field and the block confirmation request information field are the fields included in the public information field based on the trigger type originally specified by the protocol.
  • the public information field based on the trigger type carries the first indication information.
  • the first value is any one from 8 to 15.
  • the second field as the association identifier field in the user information field.
  • the association identifier field in the user information field defined in the protocol has multiple values, then the first value is the multiple any one of the values (for example, the first value is 0, 2045, or any one of the reserved values, where the reserved values are 2008 to 2044 or 2047 to 4094), the trigger type-based user information field among the user information fields in the user information list carries the first indication information.
  • the first value when the first value is 0, there is an RA-RU for use by the associated station among the RUs for RA indicated by the trigger frame.
  • the first value is 2045, there are RA-RUs for non-associated stations in the RUs for RA indicated by the trigger frame.
  • the second field as the association identifier field in the user information field.
  • the first value is any one of 0, 2045 or reserved values.
  • the user information fields based on the trigger type include: media access control protocol data units (MAC protocol data units, MPDU) multi-user spacing factor (MPDU MU spacing factor) field, traffic identifier aggregation limit (TID aggregation limit) field , reserved field, preferred access category (Preferred AC) field and first indication information.
  • the media access control protocol data unit multi-user spacing factor field, traffic identifier aggregation restriction field, reserved field and preferred access category field are the fields included in the trigger type-based user information field originally specified by the protocol.
  • S602 The access point sends a trigger frame to the station. In response, the station receives the trigger frame from the access point.
  • the site may be any second device in Figure 4, such as the second device 402, the second device 403 or the second device 404.
  • the access point can send trigger frames to multiple stations.
  • the access point broadcasts the trigger frame, and multiple stations receive the trigger frames from the access point.
  • the first device 401 sends a trigger frame to the second device 402, the second device 403 and the second device 404.
  • S603 The site obtains available resources in the second time period after the first time period according to the first indication information.
  • the available resources in the second time period are included in the RUs that can be used for RA in the second time period.
  • the RUs that can be used for RA in the second time period please refer to S601.
  • the site obtains the available resources in the second time period through the first model.
  • the first model is used to obtain available resources in the second time period based on the first indication information. For example, by inputting the first indication information into the first model, available resources in the second time period can be obtained.
  • the first model is used to obtain available resources in the second time period according to the first indication information and the first information. For example, by inputting the first indication information and the first information into the first model, available resources in the second time period can be obtained.
  • the first information may include at least one of the following: a first time interval, a second time interval, a first throughput or a second throughput.
  • the first time interval is the interval between the last time the station successfully sent data and the current time (such as the time the access point sends the trigger frame, or the time the station receives the trigger frame).
  • the second time interval is the interval between the latest time when the stations other than the station in S603 successfully sent data among the stations competing for resources and the current time.
  • the first throughput is the throughput of the site in S603 in the third time period before the second time period.
  • the second throughput is the total throughput of sites other than the site in S603 among sites competing for resources in the third time period.
  • the third time period may be the same as the first time period, or may be different.
  • the unit of the first time interval and/or the second time interval may be any time domain unit such as symbol, sub-slot, time slot, sub-frame or frame.
  • the first time interval can be expressed as: the time slot in which the station last successfully sent data and the current time slot (such as: the time when the access point sends a trigger frame). time slot or the time slot in which the station receives the trigger frame).
  • the second time interval can be expressed as: the interval between the latest time slot in which the stations other than the station in S603 successfully sent data among the stations competing for resources and the current time slot.
  • the first information is included in the first indication information.
  • the site obtains the first information by monitoring BA messages.
  • the site determines the first information through historically available resources based on the first model.
  • the station since the station considers the first indication information when determining the available resources in the second time period, or considers the first indication information and the first information, the station can promptly adjust the resource usage in the second time period.
  • This strategy allows sites that have not competed for resources to obtain resources first to avoid the situation where sites have no available resources for a long time, thus improving the throughput of sites competing for resources and reducing data transmission delays.
  • the simulation results are the total throughput of sites competing for resources based on the communication method provided by the embodiment of the present application and the total throughput of sites competing for resources under the UORA mechanism.
  • Figure 8 is a simulation using the saturated Poisson service as an example.
  • the number of sites competing for resources is 16, and the number of RUs used for RA resources is 4.
  • the number of time slots included in the resource is 2, and the contention window ranges from 3 to 15.
  • the total throughput of sites competing for resources based on the communication method provided by the embodiments of this application is greater than the total throughput of sites competing for resources under the UORA mechanism.
  • the access point can periodically determine and send trigger frames, and the station can periodically determine available resources.
  • the access point may send trigger frame 1 at time 0, triggering the station to determine the available resources within time period 0.
  • the access point can send trigger frame 2 at time 1, triggering the station to determine the available resources during time period 1.
  • the trigger frame 2 may indicate the usage of multiple resources in time period 0, and/or the data transmission results on multiple resources in time period 0.
  • the access point can send trigger frame 3 at time 2, triggering the station to determine the available resources during time period 2, and so on.
  • trigger frame 3 can indicate the usage of multiple resources in time period 1, and/or the data transmission results on multiple resources in time period 1; or, trigger frame 3 can indicate time period 0 and time period 1. Usage of multiple resources, and/or, data transmission results on multiple resources in time period 0 and time period 1.
  • the station determines that there are no available resources in the second time period, the station will not send data in the second time period; if the station obtains the available resources in the second time period, the station will send data to the access point on the available resources. send data.
  • a possible implementation method is that before S601, the site obtains the first model.
  • the site obtains the first model through the method described in Figure 10 below.
  • the site uses a method similar to that of the third device to train itself to obtain the first model.
  • the station and the third device jointly train to generate the first model.
  • the site can also obtain the updated first model.
  • the third device updates the first model, obtains the updated first model, and sends parameters of the updated model to the site, so that the site obtains the updated first model.
  • the site updates the first model to obtain the updated first model.
  • the site and the third device jointly update the first model to obtain the updated first model. After the site obtains the updated first model, it can obtain the available resources in the second time period based on the updated first model, so that the obtained available resources are more appropriate.
  • One possible implementation is when there are new stations competing for resources, and/or the number of frequency domain units and/or the number of time domain units included in the resources indicated by the trigger frame changes significantly. In this case, the site gets the updated first model.
  • the actions of the access point or station in the above-mentioned S601-S603 can be executed by the processor 501 in the communication device 50 shown in FIG. 5 by calling the application code stored in the memory 503.
  • This embodiment of the present application does not do this. Any restrictions.
  • the access point may determine a trigger frame including the first indication information and send the trigger frame to the station. Since the first indication information can indicate the usage of multiple resources in the first time period and/or the data transmission results on the multiple resources in the first time period, after receiving the trigger frame, the station can obtain the information based on the first indication information. Available resources in the second time period after the first time period. That is to say, when determining the available resources in the second time period, the site considers the usage of multiple resources in the first time period, and/or the data transmission results on multiple resources in the first time period, so The site can adjust the resource usage policy in the second time period in time, so that sites that have not competed for resources have priority in obtaining resources. In this way, the situation of a site having no available resources for a long period of time can be avoided, thereby improving the throughput of sites competing for resources and reducing data transmission delays.
  • the communication method may include the following steps:
  • the third device may be any device in the communication system 40 shown in FIG. 4 .
  • the third device is the first device 401, the second device 402, the second device 403 or the second device 404 in FIG. 4 .
  • the first model is used to obtain available resources in the second time period based on the first indication information. Further, the first model is used to obtain available resources in the second time period according to the first indication information and the first information.
  • the available resources in the second time period, and the first information reference may be made to the corresponding descriptions in the embodiment shown in FIG. 6 .
  • the first model is any neural network model.
  • the first model includes an input layer, a hidden layer and an output layer.
  • the hidden layer includes one layer of long short term memory (LSTM) network containing 32 neurons, and two layers of 32 neurons containing the activation function of a linear rectified function (rectified linear unit, ReLU). Connected (fully connected, FC) network.
  • LSTM long short term memory
  • ReLU linear rectified function
  • the first model shown in Figure 11 is only exemplary, and in specific applications, the first model can also be in other forms.
  • more or fewer neurons may be included than the model shown in Figure 11, or the LSTM network in Figure 11 may be replaced with a recurrent neural network (RNN), etc.
  • RNN recurrent neural network
  • the third device can train to obtain the first model.
  • the third device can train the first model based on the initial information and expectations.
  • the sites compete for resources, update the parameters in the initial model (such as the weights and/or biases of the initial model), and obtain the first model.
  • the resources that the desired site competes for may refer to resources allocated to the site for the purpose of preventing the site from having no available resources for a long period of time.
  • the resource can be allocated manually or calculated using an algorithm.
  • the initial information is related to the functionality of the first model.
  • the initial information includes the resources indicated by at least one trigger frame in the historical period. Usage, the resources that the desired station competes for include the resources allocated to the station among the resources indicated by each trigger frame. Or, if the first model is used to obtain the available resources in the second time period based on the data transmission results on multiple resources in the first time period, the initial information includes resources indicated by at least one trigger frame in the historical period. As a result of data transmission, the resources that the desired station competes for include the resources allocated to the station in the resources indicated by each trigger frame.
  • the initial information includes history The usage and data transmission results of the resources indicated by at least one trigger frame in the last period of time.
  • the resources that the expected station competes for include the resources allocated to the station among the resources indicated by each trigger frame.
  • the initial information includes at least one trigger frame indication in the historical period. The usage of resources and the interval between the last time the station successfully sends data and the reference time on the resources indicated by the at least one trigger frame.
  • the resources that the expected station competes for include the resources indicated by each trigger frame. Resources allocated by the site. Among them, the reference moment is after a period of time in history and before the first model is generated.
  • the third device sends the second information to the site.
  • the station receives the second information from the third device.
  • the site is the second device in the communication system shown in Figure 4, and the site is different from the third device.
  • the site is the second device 402, the second device 403 or the second device 404 in Figure 4; if the third device is the second device in Figure 4 402, then the site is the second device 403 or the second device 404 in Figure 4.
  • the second information can be used by the site to determine the first model.
  • the second information includes parameters of the first model, such as weights and/or biases in the first model.
  • the station can obtain the first model by updating the parameters in the initial model to the parameters included in the second information.
  • the actions of the third device or station in the above-mentioned S1001-S1002 can be executed by the processor 501 in the communication device 50 shown in FIG. 5 by calling the application code stored in the memory 503. This embodiment of the present application does not do this. Any restrictions.
  • the third device can generate the first model and send the second information to the site, so that the site can obtain the first model based on the second information. In this way, the site can obtain available resources in the second time period according to the first model.
  • the site may also generate the first model using a method similar to that used by the third device to generate the first model.
  • the site can jointly train with a third device to obtain the first model, without limitation.
  • the methods and/or steps implemented by the site can also be implemented by components (such as chips or circuits) available for the site; the methods and/or steps implemented by the access point can also be implemented. Implemented by components (such as chips or circuits) that can be used in access points.
  • embodiments of the present application also provide a communication device.
  • the communication device may be a site in the above method embodiment, or a device including the above site, or a component that can be used in the site; or, the communication device may be a site in the above method embodiment.
  • the access point in the embodiment is either a device including the above-mentioned access point, or a component that can be used in the access point. It can be understood that, in order to implement the above functions, a site or an access point includes a corresponding hardware structure and/or software module to perform each function.
  • Embodiments of the present application can divide the site or access point into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It is understandable that this application The division of modules in the embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.
  • FIG. 12 shows a schematic structural diagram of a communication device 120.
  • the communication device 120 includes a transceiver module 1201 and a processing module 1202.
  • the transceiver module 1201 which may also be called a transceiver unit, is used to perform transceiver operations.
  • it may be a transceiver circuit, a transceiver, a transceiver, or a communication interface.
  • the communication device 120 may also include a storage module (not shown in Figure 12) for storing program instructions and data.
  • the communication device 120 is used to implement the functions of the site.
  • the communication device 120 is, for example, the station described in the embodiment shown in FIG. 6 or the embodiment shown in FIG. 10 .
  • the transceiver module 1201 is used to receive trigger frames from the access point.
  • the trigger frame includes first indication information, and the first indication information is used to indicate at least one of the following: usage of multiple resources in the first time period or data transmission results on multiple resources in the first time period.
  • the transceiver module 1201 may be used to perform S602.
  • the processing module 1202 is configured to obtain available resources in a second time period after the first time period according to the first indication information.
  • the processing module 1202 may be used to perform S603.
  • the communication device 120 is used to implement the function of an access point.
  • the communication device 120 is, for example, the access point described in the embodiment shown in FIG. 6 or the embodiment shown in FIG. 10 .
  • the processing module 1202 is used to determine the trigger frame.
  • the trigger frame includes first indication information, and the first indication information is used to indicate at least one of the following: usage of multiple resources in the first time period or data transmission results on multiple resources in the first time period.
  • the processing module 1202 may be used to perform S601.
  • the transceiver module 1201 is used to send the trigger frame to the station.
  • the first indication information is used by the site to obtain available resources in a second time period after the first time period.
  • the transceiver module 1201 may be used to perform S602.
  • the communication device 120 may take the form shown in FIG. 5 .
  • the processor 501 in Figure 5 can cause the communication device 120 to execute the method described in the above method embodiment by calling the computer execution instructions stored in the memory 503.
  • the functions/implementation processes of the transceiver module 1201 and the processing module 1202 in Figure 12 can be implemented by the processor 501 in Figure 5 calling computer execution instructions stored in the memory 503.
  • the function/implementation process of the processing module 1202 in Figure 12 can be implemented by the processor 501 in Figure 5 calling the computer execution instructions stored in the memory 503, and the function/implementation process of the transceiver module 1201 in Figure 12 can be implemented through Figure It is implemented by the communication interface 504 in 5.
  • the above modules or units can be implemented in software, hardware, or a combination of both.
  • the software exists in the form of computer program instructions and is stored in the memory.
  • the processor can be used to execute the program instructions and implement the above method flow.
  • the processor can be built into an SoC (System on a Chip) or ASIC, or it can be an independent semiconductor chip.
  • the processor can further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (programmable logic device) , or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate array
  • PLD programmable logic device
  • the hardware can be a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, Any one or any combination of SoC, FPGA, PLD, dedicated digital circuits, hardware accelerators or non-integrated discrete devices, which can run the necessary software or not rely on software to perform the above method flow.
  • DSP digital signal processing
  • MCU microcontroller unit
  • embodiments of the present application also provide a chip system, including: at least one processor and an interface.
  • the at least one processor is coupled to the memory through the interface.
  • the at least one processor executes the computer program or instructions in the memory
  • the chip system further includes a memory.
  • the chip system may be composed of chips, or may include chips and other discrete devices. The embodiments of this application do not specify this. body limited.
  • embodiments of the present application also provide a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by instructing relevant hardware through a computer program.
  • the program can be stored in the above computer-readable storage medium. When executed, the program can include the processes of the above method embodiments. .
  • the computer-readable storage medium may be an internal storage unit of the communication device of any of the aforementioned embodiments, such as a hard disk or memory of the communication device.
  • the above-mentioned computer-readable storage medium may also be an external storage device of the above-mentioned communication device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card equipped on the above-mentioned communication device, Flash card, etc.
  • SMC smart media card
  • SD secure digital
  • the computer-readable storage medium may also include both an internal storage unit of the communication device and an external storage device.
  • the above computer-readable storage medium is used to store the above computer program and other programs and data required by the above communication device.
  • the above-mentioned computer-readable storage media can also be used to temporarily store data that has been output or is to be output.
  • the embodiment of the present application also provides a computer program product. All or part of the processes in the above method embodiments can be completed by instructing relevant hardware through a computer program.
  • the program can be stored in the above computer program product. When executed, the program can include the processes of the above method embodiments.
  • the embodiment of the present application also provides a computer instruction. All or part of the processes in the above method embodiments can be completed by computer instructions to instruct related hardware (such as computers, processors, access network equipment, mobility management network elements or session management network elements, etc.).
  • the program may be stored in the above-mentioned computer-readable storage medium or in the above-mentioned computer program product.
  • the embodiment of the present application also provides a communication system, including: the access point and the station in the above embodiment.
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of modules or units is only a logical function division.
  • there may be other division methods for example, multiple units or components may be The combination can either be integrated into another device, or some features can be omitted, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated.
  • the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.

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Abstract

La présente demande se rapporte au domaine des communications sans fil. L'invention concerne un procédé et un appareil de communication, qui permettent d'éviter une situation dans laquelle une station n'a pas de ressources disponibles pendant une longue période, ce qui permet d'augmenter le débit de la station en concurrence pour des ressources, et de réduire le retard temporel de transmission de données. Le procédé comprend les étapes suivantes : une station reçoit une trame de déclenchement en provenance d'un point d'accès et, selon des premières informations d'indication dans la trame de déclenchement, acquiert des ressources disponibles dans une seconde période, les premières informations d'indication étant utilisées pour indiquer au moins l'un des éléments suivants : la condition de service d'une pluralité de ressources dans une première période antérieure à la seconde période, ou un résultat de transmission de données de la pluralité de ressources. La présente invention est appliquée à des systèmes de réseau local sans fil prenant en charge des protocoles de série 802.11, tels que des protocoles Wi-Fi de nouvelle génération IEEE 802.11ax, par exemple 802.11be, Wi-Fi7, ou EHT, et 802.11be de prochaine génération, c'est-à-dire Wi-Fi 8, et peut également être appliquée à des systèmes de réseau personnel sans fil à bande ultra-large (UWB), et à des systèmes de détection.
PCT/CN2023/103524 2022-07-29 2023-06-29 Procédé et appareil de communication WO2024021983A1 (fr)

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Citations (3)

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US20160119953A1 (en) * 2014-10-28 2016-04-28 Qualcomm Incorporated Contention resolution techniques in frequency and spatial domains
US20190069310A1 (en) * 2017-08-23 2019-02-28 Qualcomm Incorporated Predicting resource unit allocations in a wireless network
CN113395701A (zh) * 2020-03-13 2021-09-14 华为技术有限公司 一种协作通信的方法和应用于协作通信的装置

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Publication number Priority date Publication date Assignee Title
US20160119953A1 (en) * 2014-10-28 2016-04-28 Qualcomm Incorporated Contention resolution techniques in frequency and spatial domains
US20190069310A1 (en) * 2017-08-23 2019-02-28 Qualcomm Incorporated Predicting resource unit allocations in a wireless network
CN113395701A (zh) * 2020-03-13 2021-09-14 华为技术有限公司 一种协作通信的方法和应用于协作通信的装置

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