WO2023000710A1 - 处理广播信息的方法和装置 - Google Patents

处理广播信息的方法和装置 Download PDF

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Publication number
WO2023000710A1
WO2023000710A1 PCT/CN2022/084815 CN2022084815W WO2023000710A1 WO 2023000710 A1 WO2023000710 A1 WO 2023000710A1 CN 2022084815 W CN2022084815 W CN 2022084815W WO 2023000710 A1 WO2023000710 A1 WO 2023000710A1
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WIPO (PCT)
Prior art keywords
indication information
broadcast frame
frame
extended
basic
Prior art date
Application number
PCT/CN2022/084815
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English (en)
French (fr)
Inventor
何青春
高磊
程型清
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22844882.5A priority Critical patent/EP4358597A4/en
Publication of WO2023000710A1 publication Critical patent/WO2023000710A1/zh
Priority to US18/417,765 priority patent/US20240155310A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the communication field, and further relates to a method and device for processing broadcast information.
  • Short-range communication plays an important role in people's daily life. For example, there is a demand for short-range communication in fields such as smart terminals, smart homes, smart manufacturing, and smart cars.
  • a broadcast message includes two parts: the basic broadcast frame and the extended broadcast frame (or extended data frame).
  • Layer, PHY information to receive the extended broadcast frame (or extended data frame)
  • the broadcast receiver initiates a scan request and/or connection request in the corresponding window according to the indication information in the extended broadcast frame (or extended data frame)
  • the broadcast receiver receives the scanning response and/or the broadcast receiver completes the connection with the broadcast sender to complete the communication process.
  • the present application provides a method for processing broadcast information, by adding indication information to the basic broadcast frame sent by the second device to the first device, so that the first device determines whether to receive an extended broadcast frame or a scan response frame according to the indication information, providing A flexible receiving method enables the first device to determine whether to receive subsequent broadcast content according to indication information and its own needs. Further, in the case of not receiving the extended broadcast frame or the scan response frame, the power consumption of the first device in the broadcast information processing process is saved. In addition, the first device parses the indication information in the frame header of the basic broadcast frame at the physical layer, saving power consumption of the first device during the parsing process.
  • a communication method for processing broadcast information including: a first device receives a basic broadcast frame sent by a second device; the first device parses the basic broadcast frame, and obtains indication information, and the indication information includes at least one of the following: The first indication information, the first indication information is used to indicate whether the content of the extended broadcast frame has changed, the second indication information, the second indication information is used to indicate the type of broadcast, the third indication information, the third indication information is used to indicate scanning Whether the content of the response frame changes; the first device determines whether to receive the extended broadcast frame according to the indication information.
  • the first device may be a broadcast receiver, and the second device may be a broadcast sender.
  • the basic broadcast frame may also be a basic broadcast physical channel Protocol Data Unit (Protocol Data Unit, PDU), and the extended broadcast frame may also be an extended broadcast physical channel PDU.
  • PDU Protocol Data Unit
  • the first device determines whether to receive the extended broadcast frame or the scan response frame according to the indication information, providing A flexible receiving method is provided, so that the first device determines whether to receive subsequent broadcast content according to the indication information and its own needs. Further, in the case of not receiving the extended broadcast frame or the scan response frame, the power consumption of the first device in the broadcast information processing process is saved. Moreover, the first device parses the indication information in the basic broadcast frame at the physical layer, which saves power consumption of the first device during the parsing process.
  • the indication information is included in the physical layer header of the basic broadcast frame or in the payload of the physical layer of the basic broadcast frame, and the physical layer header of the basic broadcast frame It can also include physical layer control information such as the codec of the basic broadcast frame, the indication of the new transmission and the old transmission, etc., and the payload header of the physical layer of the basic broadcast frame can also include the high-level control information of the basic broadcast frame, such as the data link layer.
  • One or more control information related to the link layer such as segment, reassembly, multiplexing, and logical channel priority.
  • the first device parses the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame, and obtains it from the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame Instructions. Parsing the indication information at the frame header of the physical layer saves the power consumption of the first device in the parsing process.
  • the indication information may include one of first indication information, second indication information, and third indication information.
  • the indication information may include first indication information. If the first indication information indicates that the content of the extended broadcast frame has changed, the first device receives the extended broadcast frame. If the first indication information indicates that the content of the extended broadcast frame has not changed, The first device does not receive extended broadcast frames. Further, according to the content of the extended broadcast frame received this time or the previously buffered extended broadcast frame (the extended broadcast frame is not received this time, the content of the extended broadcast frame this time is the same as the content of the previously received and buffered extended broadcast frame same), initiate a scan request or a connection request, further, receive a scan response frame or establish a connection.
  • the indication information may include second indication information
  • the broadcast type indicated by the second indication information may include: scannable, connectable, unscannable, unconnectable, or the broadcast type may be one of the above four types combination. If the first device determines that the broadcast type is the target type, the first device receives the extended broadcast frame, further, the first device initiates a scan request or a connection request according to the content of the extended broadcast frame, and further, the first device receives a scan response frame or A connection is established with the second device. If the first device determines that the type of broadcast is not the target type, the first device will not receive the extended broadcast frame, further, the first device will not initiate a scan request or connection request, and further, the first device will not receive a scan response frame or establish an connect.
  • the indication information may include third indication information. If the third indication information indicates that the content of the scan response frame has not changed, the first device does not receive the extended broadcast frame. Further, the first device does not initiate a scan request. Further , the first device does not receive the scan response frame. If the third indication information indicates that the content of the scan response frame changes, the first device receives the extended broadcast frame. Further, the first device initiates a scan request according to the content of the extended broadcast frame. Further, the first device receives the scan response frame.
  • the third indication information may be included in the frame header or payload header of the extended request frame, the first device receives the basic broadcast frame, and receives the extended broadcast frame according to the content of the basic broadcast frame, if the extended broadcast frame includes The third indication information indicates that the content of the scan response frame changes, and the first device initiates a scan request according to the content of the extended broadcast frame, and further, the first device receives the scan response frame. If the third indication information indicates that the content of the scan response frame has not changed, the first device does not initiate a scan request, or the first device initiates a scan request according to the content of the extended broadcast frame, and the first device does not receive the scan response frame.
  • the indication information may include any two of the first indication information, the second indication information, and the third indication information.
  • the indication information may include first indication information and second indication information. If the first device determines that the type of broadcast is not the target type according to the second indication information, no matter whether the content of the extended broadcast frame indicated by the first indication information changes, the first device does not receive the extended broadcast frame, and further, the first device does not initiate a scan request or a connection request, further, the first device does not receive a scan response frame or establish a connection.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the first device receives For the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the first device does not receive the extended broadcast frame, and further, the first device (The extended broadcast frame is not received this time, and the content of the extended broadcast frame is the same as that of the previously received and cached extended broadcast frame), initiates a scan request or a connection request, and further, the first device receives a scan response frame or establishes a connect.
  • the indication information may include first indication information and third indication information. If the first device determines that the content of the scan response frame does not change according to the third indication information, no matter whether the content of the extended broadcast frame indicated by the first indication information changes, the first device does not receive the extended broadcast frame, further, the first device does not A scan request is initiated, and further, the first device does not receive a scan response frame.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the first device Receive the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the first device does not receive the extended broadcast frame, and further, the first device content (the extended broadcast frame is not received this time, and the content of the extended broadcast frame this time is the same as that of the previously received and cached extended broadcast frame), initiates a scan request, and further, the first device receives the scan response frame.
  • the indication information may include second indication information and third indication information. If the first device determines that the broadcast type is not the target type according to the second indication information, no matter whether the content of the scan response frame indicated by the third indication information changes, the first device does not receive the extended broadcast frame, and further, the first device does not initiate a scan Request, further, the first device does not receive the scan response frame.
  • the first device determines whether to receive the extended broadcast frame according to the third indication information, and if the third indication information indicates that the content of the scan response frame changes, the first device receives The extended broadcast frame, further, the first device initiates a scan request according to the content of the extended broadcast frame, further, the first device receives the scan response frame, if the third indication information indicates that the content of the scan response frame has not changed, the first device does not receive Extending the broadcast frame, further, the first device will not initiate a scan request, and further, the first device will not receive a scan response frame.
  • the third indication information may be included in the extended broadcast frame, and the first indication information may be included in the basic broadcast frame. If the first device confirms that the content of the extended broadcast frame has changed according to the first indication information, the first device receives the extended broadcast frame, the first device receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the scanning response frame occurs Change, the first device initiates a scan request, further, the first device receives a scan response frame, if the third indication information indicates that the scan response frame has not changed, the first device initiates a scan request, and the first device does not receive the scan response frame, or The first device does not initiate a scan request.
  • the first device If the first device confirms that the content of the extended broadcast frame has not changed according to the first indication information, the first device does not receive the extended broadcast frame; further, the first device initiates a scan request according to the content of the cached extended broadcast frame; further, the first device A device receives a scan response.
  • the third indication information may be included in the extended broadcast frame, and the second indication information may be included in the basic broadcast frame. If the broadcast type indicated by the second indication information is the target type of the first device, the first device receives the extended broadcast frame, receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the scan response frame changes, the first device The device initiates a scan request. Further, the first device receives the scan response frame. If the third indication information indicates that the scan response frame has not changed, the first device initiates a scan request. The first device does not receive the scan response frame, or the first device does not receive the scan response frame. Initiate a scan request. If the broadcast type indicated by the second indication information is not the target type of the first device, the first device does not receive the extended broadcast frame, further, the first device does not initiate a scan request, and further, the first device does not receive a scan response frame.
  • the indication information may include first indication information, second indication information, and third indication information.
  • the three types of indication information are included in the basic broadcast frame. If the first device determines that the type of broadcast is not the target type according to the second indication information, regardless of the content indicated by the first indication information and the second indication information, the first device will not After receiving the extended broadcast frame, further, the first device does not initiate a scan request, and further, the first device does not receive a scan response. If the first device determines that the broadcast type is the target type according to the second indication information, the first device determines whether to receive the extended broadcast frame according to the third indication information, and if the scan response frame does not change, the first device does not receive the extended broadcast frame, and further , the first device does not initiate a scan request, and further, the first device does not receive a scan response.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information, if the content of the extended broadcast frame changes, the first device receives the extended broadcast frame, if the first indication information indicates the content of the extended broadcast frame No change occurs, the first device does not receive the extended broadcast frame, and further, the first device receives the extended broadcast frame according to the contents of the extended broadcast frame received this time or the previously buffered extended broadcast frame (the extended broadcast frame is not received this time, the extended broadcast frame of this time The content is the same as that of the previously received and cached extended broadcast frame), initiates a scan request, and further, the first device receives the scan response frame.
  • the first indication information and the second indication information may be included in the basic broadcast frame
  • the third indication information may be included in the extended broadcast frame.
  • the first device receives the basic broadcast frame and determines that the broadcast type is not target type, regardless of the content indicated by the first indication information and the third indication information, the first device does not receive the extended broadcast frame, further, does not initiate a scan request, and further, does not receive a scan response. If the first device determines that the broadcast type is the target type according to the second indication information, the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame has not changed, the first device The extended broadcast frame is not received. Correspondingly, the first device cannot receive the third indication information.
  • the first device according to the content of the extended broadcast frame previously buffered by the first device (the extended broadcast frame is not received this time, the extended broadcast frame this time The content is the same as that of the previously received and cached extended broadcast frame), initiates a scan request, and further, the first device receives the scan response frame. If the first indication information indicates that the content of the extended broadcast frame changes, the first device receives the extended broadcast frame, further, the first device receives the third indication information in the extended broadcast frame, if the third indication information indicates that the content of the scan response frame If a change occurs, the first device initiates a scan request. Further, the first device receives a scan response. If the third indication information indicates that the content of the scan response frame has not changed, the first device does not initiate a scan request or the first device initiates a scan request but Scan response frames are not received.
  • a communication method for processing broadcast information including: the second device sends a basic broadcast frame to the first device, the basic broadcast frame includes indication information, and the indication information needs to be parsed and obtained by the first device, and the indication information includes the following At least one item: first indication information, the first indication information is used to indicate whether the content of the extended broadcast frame has changed, the second indication information, the second indication information is used to indicate the type of broadcast, the third indication information, the third indication information Used to indicate whether the content of the scan response frame has changed.
  • the first device determines whether to receive the extended broadcast frame or the scan response frame according to the indication information, providing A flexible receiving method is provided, so that the first device determines whether to receive subsequent broadcast content according to actual conditions. Further, in the case of not receiving the extended broadcast frame or the scan response frame, the power consumption of the first device in the broadcast information processing process is saved. Moreover, the first device parses the indication information of the frame header in the basic broadcast frame at the physical layer, which saves power consumption of the first device during the parsing process.
  • the indication information is included in a physical layer header of the basic broadcast frame or a payload header of the physical layer of the basic broadcast frame.
  • the physical layer frame header of the basic broadcast frame can also include physical layer control information such as the codec of the basic broadcast frame, the new transmission and the old transmission indication, and the payload header of the physical layer of the basic broadcast frame can also include the high-level control information of the basic broadcast frame.
  • Information such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the first device parses the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame, and obtains it from the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame Instructions. Parsing the indication information from the physical layer frame header saves the power consumption of the first device in the parsing process.
  • a communication device including a unit for performing the steps of the communication method in the first aspect and its implementation manner.
  • the communication device is a communication chip
  • the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
  • the communication device is a communication device (for example, a first device, etc.), and the communication chip may include a transmitter for sending information, and a receiver for receiving information or data.
  • a communication device including a unit for performing the steps of the communication method in the above second aspect and its implementation manner.
  • the communication device is a communication chip
  • the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
  • the communication device is a communication device (for example, a second device, etc.), and the communication chip may include a transmitter for sending information, and a receiver for receiving information or data.
  • a communication device including a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device performs the above-mentioned first aspect or Communication methods in the second aspect and various implementations thereof.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be set separately from the processor.
  • the communication device further includes a transmitter (transmitter) and a receiver (receiver).
  • a computer program product includes: a computer program (also referred to as code, or instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned first aspect or the first aspect.
  • a computer program also referred to as code, or instruction
  • the second aspect and the communication methods in each implementation manner thereof.
  • a computer-readable medium stores a computer program (also referred to as code, or an instruction) which, when running on a computer, causes the computer to execute the above-mentioned first aspect or the first aspect.
  • a computer program also referred to as code, or an instruction
  • the second aspect and the communication methods in each implementation manner thereof.
  • a communication system includes: at least one device according to any one of the third aspect and the device according to any one of the fourth aspect.
  • a ninth aspect provides a chip system, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device installed with the chip system executes the above-mentioned The communication method in the first aspect or the second aspect and various implementations thereof.
  • the chip system may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
  • FIG. 1 is a system architecture diagram of an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a wireless short-distance transmission protocol layer according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram of a basic broadcast frame structure according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a flow of receiving a broadcast message and subsequent communication processing according to an embodiment of the present application.
  • FIG. 5 is an example of a broadcast information processing method according to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of a frame header of a basic broadcast frame including indication information according to an embodiment of the present application.
  • Fig. 7 is a schematic diagram of a payload header including indication information according to an embodiment of the present application.
  • Fig. 8 is another example of the broadcast information processing method of the embodiment of the present application.
  • FIG. 9 is another example of the broadcast information processing method of the embodiment of the present application.
  • Fig. 10 is another example of the broadcast information processing method of the embodiment of the present application.
  • FIG. 11 is an example of a communication device for broadcast information processing according to an embodiment of the present application.
  • FIG. 12 is another example of a communication device for broadcast information processing according to an embodiment of the present application.
  • the communication method provided by the embodiment of the present application can be applied to a scenario where there is signal transmission.
  • the signal is transmitted between the two ends of the communication.
  • the end that sends the signal is the signal sending end
  • the end that receives the signal is the signal receiving end.
  • the sending end and the signal receiving end can change dynamically.
  • the communication terminal A sends a signal and acts as the signal transmitting end
  • the communication terminal A receives the signal and acts as the signal receiving end.
  • the communication terminal can be a signal sending terminal and a signal receiving terminal at the same time, and communicate with different communication terminals.
  • FIG. 1 is a system architecture of an embodiment of the present application.
  • the method provided in this application may be applicable to wireless communication scenarios, for example, short-distance wireless communication scenarios, wide-area wireless communication scenarios, or local area wireless communication scenarios, and the like.
  • a certain communication area or range may include multiple communication domains.
  • the communication domain may refer to a group of communication nodes with communication relationships and a system composed of communication connection relationships (ie, communication links) between the communication nodes.
  • a communication domain may include a master communication node (may be referred to as master node for short) and at least one slave communication node (may be referred to as slave node for short).
  • FIG. 1 shows a schematic diagram of a wireless communication scenario provided by an embodiment of the present application.
  • the wireless communication scenario at least one master node and at least one slave node corresponding to each master node may be included.
  • a master node 1 and a master node 2 are included in the wireless communication scenario.
  • the master node 1 forms a communication domain 1 with the slave nodes 1 and 2, and the master node 1 communicates with the slave nodes 1 and 2.
  • the master node 2 forms a communication domain 2 with the slave nodes 3 and 4, and the master node 2 communicates with the slave nodes 3 and 4.
  • master node 1 and master node 2 may be network devices, and slave nodes 1 to 4 may be terminal devices.
  • the network device may be a device with a wireless transceiver function or a chip that may be set on the network device.
  • the network device may be a radio access network (RAN) device in a wireless network of a certain communication standard, or called a base station , including but not limited to: next generation node B (generation node B, gNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), Base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, Wi-Fi) system Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc.
  • RAN radio access network
  • RAN equipment may include a centralized unit (CU) and a distributed unit (DU).
  • the RAN device may also include a radio frequency unit (radio unit, RU).
  • CU implements some functions of RAN equipment
  • DU implements some functions of RAN equipment, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements Radio link control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layer functions.
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network devices in the RAN, and the CU can also be divided into network devices in the core network (CN), which is not limited.
  • Terminal equipment may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminals in transportation safety, wireless terminals in smart cities, smart wearable devices (smart glasses, smart watches, smart headphones, etc.), wireless terminals in smart homes, etc., can also be Chips or chip modules (or chip systems) that can be installed in the above devices.
  • the embodiments of the present application do not limit the application scenarios.
  • a terminal device with a wireless transceiver function
  • master node 1 and master node 2 may be access points (access point, AP), and slave node 1 to slave node 4 Can be a station.
  • examples of the master node and the slave node are different in different short-range wireless communication scenarios.
  • master node 1 and master node 2 can be cockpit domain controllers (cockpit domain controller, CDC), and slave nodes 1 to 4 can be car music speakers, car Ambient lighting etc.
  • master node 1 and master node 2 may be mobile phones, and slave nodes 1 to 4 may be earphones, watches, etc.
  • master node 1 and master node 2 may be home wireless gateways, and slave nodes 1 to 4 may be household appliances.
  • master node 1 and master node 2 may be industrial wireless gateways, and slave nodes 1 to 4 may be unmanned guided vehicles (automatic guided vehicle, AGV) , machine tools, robots, etc.
  • AGV automatic guided vehicle
  • the examples of the master node and the slave node listed above are only examples, and this application does not limit it. It should be noted that when the wireless communication scenario shown in FIG. 1 is another wireless communication scenario, the master node and the slave node may also be other possibilities, which will not be listed here in this application.
  • the roles of the master node and the slave node can be changed dynamically, for example, the master node and the slave node are swapped, or the master node becomes the slave node of other devices, and the slave node becomes the master node of other devices.
  • a node may also be referred to as a communication node, a device (device), or a communication device (device).
  • the physical layer uses the physical transmission medium to provide physical channels for the data link layer, and sends and receives data on these physical channels to realize bit stream transmission.
  • the physical transmission medium can be defined by frequency point and bandwidth.
  • a frequency band used for wireless short-distance communication has a frequency range of 2.400-2.4835 gigahertz (GHz).
  • M Hz 2 megahertz
  • the data link layer shields the physical layer information from the upper layer protocols, such as the network and transport layers.
  • the data link layer is used to realize the connection and communication between the master node and the slave node. It can perform functions such as resource management, access control, data segmentation, cascade, and working mode to ensure reliable data transmission.
  • the data link layer can also be further divided into a media access layer and a link control layer.
  • Broadcasts can be used for discovery, connection, and delivery of public data between devices.
  • a device When a device wants to be discovered or accessed, it can send a connectable broadcast message.
  • the broadcast message may include a basic broadcast frame and an extended broadcast frame (or an extended data frame).
  • Fig. 3 is a schematic diagram of an exemplary basic broadcast frame structure. As shown in Figure 3, higher layers such as the data link layer or media access layer of the sender device can add the service data unit (service data unit, SDU) obtained from its upper layer to the payload header (Payload header) to obtain the protocol data unit (protocol data unit, PDU).
  • service data unit service data unit
  • Payload header protocol data unit
  • the payload header can include the data frame type, and can also include high-level control information, such as data link layer or media access layer and other high-level segmentation, reassembly, multiplexing, logical channel priority and other link layer-related ones. or multiple control messages.
  • the physical layer entity obtains PDUs from high-level layers such as the data link layer or the media access layer, uses the PDUs as payloads (Payload), and adds a physical layer frame header (Header) before the Payload to form a data frame and send it on the physical channel.
  • the physical layer frame header (Header) may also include physical layer control information such as encoding and decoding of data frames, indication of new transmission and old transmission, etc.
  • the receiver device receives a data frame from a physical channel, and the data frame may include a physical layer header and a payload.
  • the data frame type can be obtained.
  • the data frame type can include basic broadcast frame, extended broadcast frame, etc., and information such as the length of the payload can also be obtained.
  • the payload is the PDU of the upper layer of the physical layer (media access layer or data link layer).
  • the physical layer entity removes the physical layer frame header, it submits the payload to the data link layer entity or media access layer entity for processing.
  • the payload may include a payload header and an SDU.
  • the payload header may include one or more fields, and the data link layer or media access layer entity may obtain relevant information of the SDU according to the payload header, and submit the SDU to its upper layer for processing.
  • the payload header of the basic broadcast frame may include the extended frame pointer AuxPtr field, which is used to indicate the resource for obtaining the extended frame, for example, may include obtaining the frequency point, clock and physical layer (Physical Layer, PHY) information of the extended broadcast frame, wherein , the frequency point may also include channel number or frequency point number, etc., and the clock may include one or more items of time interval, frame number, time slot number, etc.
  • the reception of the broadcast message and the subsequent communication processing flow are shown in Figure 4, including the following steps: the broadcast sender periodically sends the basic broadcast frame, the receiver receives the basic broadcast frame, and in the payload header (Payload Header) of the basic broadcast frame
  • the frequency point, clock and physical layer (Physical Layer, PHY) information of the extended broadcast frame are acquired in the extended packet pointer AuxPtr message.
  • the receiver determines the start time of receiving the extended broadcast frame according to the above information, receives the extended broadcast frame according to the start time, the broadcast receiver parses the extended broadcast frame, obtains the req_offset and latency information, and determines the scan request SCAN_REQ or connection request CONN_REQ window
  • the starting position initiates a scan request or a connection request, and further, the broadcast receiver can receive a scan response frame SCAN_RSP or the broadcast receiver can establish a connection with the broadcast sender.
  • the broadcast receiver needs to determine the position of the scan response window according to the Latency information in the extended broadcast frame.
  • the first device may be an example of a broadcast receiver
  • the second device may be an example of a broadcast sender.
  • the solution of the embodiment of this application can be short-distance communication between two nodes, and low power consumption supports broadcasting from the slave node or the master node.
  • the slave node is the broadcast sender
  • the master node is the broadcast receiver.
  • the broadcast information determines whether it is the device selected by itself.
  • the master node can initiate a connection request or initiate a scan request.
  • the master node can establish a connection with the slave node or the master node receives the scan response frame sent by the slave node. After entering the connection state, the slave node can initiate a resource request to the master node when there is no resource, and the master node will allocate transmission resources.
  • the first device may be an example of a master node
  • the second device may be an example of a slave node.
  • Resource allocation may also be in a static or semi-static manner, and in this embodiment of the application, the specific resource allocation manner is not limited.
  • the broadcast message is generated and sent by the broadcast sender, that is, the second device.
  • the module that generates the broadcast message can be at the upper layer of the second device or at the bottom layer of the second device.
  • the broadcast message periodically passes through the broadcast channel or data service channel to send.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the basic broadcast frame may be a basic broadcast physical channel PDU, and the extended broadcast frame may also be an extended broadcast physical channel PDU.
  • FIG. 5 is an example of a communication method for processing broadcast information according to an embodiment of the present application. As shown in FIG. 5, the method 500 includes:
  • the first device receives the basic broadcast frame sent by the second device.
  • the first device may be an example of a broadcast receiver
  • the second device may be an example of a broadcast sender
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the second device.
  • the first device parses the basic broadcast frame to acquire indication information.
  • the indication information is located in the physical layer header of the basic broadcast frame, and includes one or more bits.
  • the physical layer header of the basic broadcast frame may also include codec of the basic broadcast frame, new transmission and old transmission indication, etc. layer control information.
  • the position of the indication information in the physical layer frame header is shown in Figure 6.
  • the indication information can be one or more bits added in the frame header of the basic broadcast frame. It should be understood that the indication information can also be the basic broadcast frame header.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the indication information may be located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame, such as One or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the indication information in the payload header of the physical layer of the basic broadcast frame is shown in FIG. 7 .
  • the indication information may be one or more bits added in the payload header of the physical layer of the basic broadcast frame. It should be understood that the indication information may also be the bits present in the payload header of the physical layer of the basic broadcast frame Bit, optional, the existing bit is a temporarily unused bit.
  • the physical layer processing entity (or module) of the first device parses the physical layer frame header of the basic broadcast frame to obtain indication information, or, the high-level processing entity (or module) of the first device parses the payload header of the physical layer of the basic broadcast frame to get instructions.
  • the instruction information includes one or more of the following:
  • the first indication information is used to indicate whether the content of the extended broadcast frame changes, for example, the first indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the extended broadcast frame changes.
  • the embodiment of this application does not limit the representation method.
  • the second indication information is used to indicate the broadcast type, and the broadcast type may include: scannable, connectable, unscannable, and unconnectable.
  • the broadcast type indicated by the second indication information may be indicated by bits of the second indication information, for example, two bits may be used to indicate the broadcast type, 00 may indicate scannable and connectable, 01 may Indicates scannable and unconnectable, 10 indicates unscannable and connectable, 11 indicates unscannable and unconnectable, and this embodiment of the application does not limit the representation method.
  • the third indication information is used to indicate whether the content of the scan response frame is changed, for example, the third indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the scan response frame is changed.
  • the embodiment of this application does not limit the representation method.
  • the first device determines whether to receive the extended broadcast frame according to the indication information.
  • the indication information may include any one of first indication information, second indication information, and third indication information.
  • the indication information may include first indication information. If the first indication information indicates that the content of the extended broadcast frame changes, the first device receives the extended broadcast frame; if the first indication information indicates that the content of the extended broadcast frame does not change, the first device may not receive the extended broadcast frame. It should be noted that the first device has received the extended broadcast frame with the same content as the extended broadcast frame before this broadcast, and the first device can buffer the extended broadcast frame or the first device can receive the extended broadcast frame from the extended broadcast frame. If the content of the extended broadcast frame has not changed, the first device may not receive the extended broadcast frame and continue to use the buffered extended broadcast frame or the buffered extended broadcast frame. for scanning or connection-related information. It can be understood that the first device does not receive the extended broadcast frame.
  • the first device does not receive the extended broadcast frame, or that the first device receives the extended broadcast frame but does not parse the extended broadcast frame.
  • the number of times the first device receives the extended broadcast frame can be reduced, or the number of times the first device parses the extended broadcast frame can be reduced, thereby saving power consumption.
  • the first indication information may indicate that the content of the extended broadcast frame this time has not changed compared with the content of the previous time.
  • the first device may initiate a scan request or a connection request according to the received extended broadcast frame or the previously buffered extended broadcast frame or the related information for scanning or connection in the buffered extended broadcast frame, and further, receive the scan request Respond to a frame or establish a connection.
  • the first device may determine the window position of the scan request or the connection request according to the content of the extended broadcast frame. Specifically, the first device may determine the scan request or the window position of the connection request according to the req-offset information and latency information in the extended broadcast frame The location of the connection request window.
  • the indication information may include second indication information.
  • the second indication information indicates the broadcast type. If the broadcast type is the target type of the first device, the first device receives the extended broadcast frame, further, initiates a scan request or a connection request according to the content of the extended broadcast frame, and further, receives the scan Respond to a frame or establish a connection. If the broadcast type is not the target type of the first device, the first device may not receive the extended broadcast frame, and correspondingly, will not initiate a scan request or a connection request, will not receive a scan response frame, or will not establish a connection.
  • the indication information may include third indication information, where the third indication information indicates whether the scan response frame is changed. If the third indication information indicates that the content of the scan response frame has not changed, the first device does not need to receive the scan response frame. Correspondingly, there is no need to receive the extended broadcast frame, further, no scan request is initiated, and further, no scan response frame is received. If the third indication information indicates that the content of the scan response frame changes, the first device receives the extended broadcast frame, further, initiates a scan request according to the content of the extended broadcast frame, and further receives the scan response frame.
  • the third indication information may also be included in the physical layer header or payload header of the extended broadcast frame.
  • the first device receives the basic broadcast frame, parses the basic broadcast frame at the physical layer, and analyzes the basic broadcast frame according to the basic broadcast frame.
  • the content of the extended broadcast frame is received, and then the third indication information in the extended broadcast frame is analyzed at the physical layer. If the third indication information included in the extended broadcast frame indicates that the content of the scan response frame has changed, the first device according to the extended broadcast frame.
  • the content initiates a scan request, and further, the first device receives a scan response frame. If the third indication information indicates that the content of the scan response frame has not changed, the first device does not initiate a scan request, or the first device initiates a scan request according to the content of the extended broadcast frame, and does not receive the scan response frame.
  • the indication information may include any two of first indication information, second indication information, and third indication information. It should be understood that, in some embodiments, there may be a priority relationship among the first indication information, the second indication information, and the third indication information. In this embodiment of the present application, the priority relationship may be that the second indication information is higher than the third indication information, and the third indication information is higher than the first indication information. In this embodiment of the present application, the foregoing priority is taken as an example for description. It should be understood that the indication information may have priorities in other orders, and any combination of priorities is applicable to this embodiment of this application, which is not limited in this embodiment of this application. It should be understood that the indication information may not be limited by priority, and the first device judges whether to receive a subsequent broadcast message frame or whether to initiate a scan according to needs, which is not limited in this embodiment of the present application.
  • the indication information may include first indication information and second indication information. If the first device determines that the type of broadcast is not the target type according to the second indication information, no matter whether the content of the extended broadcast frame indicated by the first indication information changes, the first device does not receive the extended broadcast frame, and further, the first device does not initiate a scan request or a connection request, further, the first device does not receive a scan response frame or establish a connection.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the first device When receiving the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the first device does not receive the extended broadcast frame. Further, the first device initiates a scan request or a connection request according to the content information of the extended broadcast frame received this time or the previously cached extended broadcast frame, and further, the first device receives the scan response frame sent by the second device or the first device A connection is established with the second device.
  • the indication information may include first indication information and third indication information. If the first device determines that the content of the scan response frame does not change according to the third indication information, no matter whether the content of the extended broadcast frame indicated by the first indication information changes, the first device does not receive the extended broadcast frame, further, the first device does not A scan request is initiated, and further, the first device does not receive a scan response frame.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the first device Receive the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the first device does not receive the extended broadcast frame, and further, the first device content, initiate a scan request, and further, the first device receives a scan response frame sent by the second device.
  • the indication information may include second indication information and third indication information. If the first device determines that the broadcast type is not the target type according to the second indication information, no matter whether the content of the scan response frame indicated by the third indication information changes, the first device does not receive the extended broadcast frame, and further, the first device does not initiate a scan Request, further, the first device does not receive the scan response frame.
  • the first device determines whether to receive the extended broadcast frame according to the third indication information, and if the third indication information indicates that the content of the scan response frame changes, the first device receives Extending the broadcast frame, further, initiating a scan request according to the content of the extended broadcast frame, further, receiving a scan response frame, if the third indication information indicates that the content of the scan response frame has not changed, the first device does not receive the extended broadcast frame, and further , the first device will not initiate a scan request, and further, the first device will not receive a scan response frame.
  • the indication information may include two types.
  • the third indication information is included in the extended broadcast frame, and the first indication information is included in the basic broadcast frame.
  • the third indication information can be parsed only after receiving the extended broadcast frame. , if the extended broadcast frame is not received, it means that there is no third indication information.
  • the first device confirms that the content of the extended broadcast frame has changed according to the first indication information, receives the extended broadcast frame, and receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the scan response frame has changed, the first device initiates a scan Requesting, further, receiving a scan response frame, if the third indication information indicates that the scan response frame has not changed, the first device initiates a scan request and does not receive a scan response frame, or the first device does not initiate a scan request.
  • the first device If the first device confirms that the content of the extended broadcast frame has not changed according to the first indication information, the first device does not receive the extended broadcast frame; further, the first device initiates a scan request according to the content of the cached extended broadcast frame; further, the first device A device receives a scan response frame.
  • the indication information includes two types, the third indication information is included in the extended broadcast frame, and the second indication information is included in the basic broadcast frame. If the broadcast type indicated by the second indication information is the target type of the first device, the first device receives the extended broadcast frame, receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the scan response frame changes, the first device The device initiates a scan request, further, the first device receives a scan response frame, if the third indication information indicates that the scan response frame has not changed, the first device initiates a scan request and does not receive a scan response frame, or the first device does not initiate a scan request . If the broadcast type indicated by the second indication information is not the target type of the first device, the first device does not receive the extended broadcast frame, further, the first device does not initiate a scan request, and further, the first device does not receive a scan response frame.
  • the indication information may include first indication information, second indication information, and third indication information. There is a priority relationship between the first indication information, the second indication information, and the third indication information. In the embodiment of the present application, the priority relationship may be that the second indication information is higher than the third indication information, and the third indication information higher than the first indication. In this embodiment of the present application, the foregoing priority is taken as an example for description. It should be understood that the indication information may have priorities in other orders, and any combination of priorities is applicable to this embodiment of this application, which is not limited in this embodiment of this application. It should be understood that the indication information may also have no priority, and the first device judges whether to receive the subsequent broadcast message frame or whether to initiate a scan according to needs, which is not limited in this embodiment of the present application.
  • the indication information may be included in the basic broadcast frame. If the first device determines that the broadcast type is not the target type according to the second indication information, the first device will not receive the broadcast regardless of the content indicated by the first indication information and the second indication information. The extended broadcast frame, further, does not initiate a scan request, and further does not receive a scan response. If the first device determines that the broadcast type is the target type according to the second indication information, further, the first device determines whether to receive the extended broadcast frame according to the third indication information, and if the third indication information indicates that the scan response frame does not change, the first The device does not receive the extended broadcast frame, further, does not initiate a scan request, and further, does not receive a scan response.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the first device receives the extended broadcast frame frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the first device does not receive the extended broadcast frame, and further, the first device initiates scan request, and further, receive a scan response frame.
  • the first indication information and the second indication information may be included in the basic broadcast frame
  • the third indication information may be included in the extended broadcast frame
  • the first device receives the basic broadcast frame and determines according to the second indication information If the broadcast type is not the target type, regardless of the content indicated by the first indication information and the third indication information, the first device does not receive the extended broadcast frame, further, does not initiate a scan request, and further, does not receive a scan response. If the first device determines that the broadcast type is the target type according to the second indication information, further, the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame has not changed, The first device does not receive the extended broadcast frame.
  • the first device cannot receive the third indication information.
  • the first device initiates a scan request according to the contents of the extended broadcast frame previously cached by the first device, and further receives a scan response frame. . If the first indication information indicates that the content of the extended broadcast frame changes, the first device receives the extended broadcast frame, and further, receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the content of the scan response frame changes, The first device initiates a scan request, and further receives a scan response, and if the third indication information indicates that the content of the scan response frame has not changed, the first device does not initiate a scan request or initiates a scan request without receiving a scan response frame.
  • the method for processing broadcast information adds indication information to the basic broadcast frame sent by the second device to the first device, so that the first device determines whether to receive an extended broadcast frame or a scan response frame according to the indication information, providing A flexible receiving method is provided, so that the first device determines whether to receive subsequent broadcast content according to actual conditions. Further, in the case of not receiving the extended broadcast frame or the scan response frame, the power consumption of the first device in the process of processing the broadcast information is saved.
  • FIG. 8 is an example of a communication method for processing broadcast information according to an embodiment of the present application. As shown in Figure 8, the method 800 includes:
  • the first device receives the basic broadcast frame sent by the second device.
  • the first device is an example of a broadcast receiver
  • the second device is an example of a broadcast sender.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the second device.
  • the first device parses the basic broadcast frame to acquire first indication information.
  • the first indication information is located in the physical layer frame header of the basic broadcast frame, including one or more bits, and the physical layer frame header of the basic broadcast frame may also include the codec of the basic broadcast frame, a new transmission and an old transmission indication and other physical layer control information.
  • the position of the first indication information in the frame header of the physical layer is shown in FIG. 6, and the indication information may be one or more bits added in the frame header of the basic broadcast frame. It may be a bit existing in the frame header of the basic broadcast frame. Optionally, the existing bit is a temporarily unused bit.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the first indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the first indication information in the payload header of the physical layer of the basic broadcast frame is shown in FIG. 7 .
  • the first indication information may be one or more bits added to the payload header of the physical layer of the basic broadcast frame. It should be understood that the first indication information may also be the payload header of the physical layer of the basic broadcast frame.
  • a bit that exists by itself, optionally, the bit that exists by itself is a bit that is not used temporarily.
  • the physical layer processing entity (or module) of the first device parses the physical layer frame header of the basic broadcast frame to obtain the first indication information, or, the high-level processing entity (or module) of the first device parses the physical layer header of the basic broadcast frame
  • the payload header is used to acquire the first indication information.
  • the first indication information is used to indicate whether the content of the extended broadcast frame changes, for example, the first indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the extended broadcast frame changes.
  • the embodiment of this application does not limit the representation method.
  • the first indication information indicates that the content of the extended broadcast frame changes.
  • the first indication information may indicate that the content of the extended broadcast frame has changed compared with the previous broadcast.
  • the first indication information indicates that the content of the extended broadcast frame has not changed.
  • the first indication information may indicate that the content of the extended broadcast frame has not changed compared with the previous broadcast.
  • the first device determines whether to receive the extended broadcast frame according to the first indication information.
  • the first device receives the basic broadcast frame, and further acquires the first indication information in the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame by parsing.
  • the first indication information indicates that the content of the extended broadcast frame is changed. Specifically, the meaning of the content of the extended broadcast frame is changed is similar to step S820.
  • the first device receives the extended broadcast frame according to the first indication information.
  • the first indication information indicates that the content of the extended broadcast frame has not changed. Specifically, the meaning of the content of the extended broadcast frame has not changed is similar to step S820. Correspondingly, the content of the extended broadcast frame has not changed, and the content of the extended broadcast frame is cached in the first device. The content of the extended broadcast frame is the same as the extended broadcast frame, therefore, the content of the extended broadcast frame is cached in the first device. The first device does not receive the extended broadcast frame according to the first indication information, which can save power consumption of the first device.
  • the first device initiates a scan request or a connection request.
  • the first device determines the start position of the scan request or connection request window according to the received or previously cached extended broadcast frame, and initiates a scan request or connection request to the second device at the position.
  • the broadcast type can be divided into: scannable, connectable, unscannable, and unconnectable.
  • the broadcast type has at least the following possibilities: connectable and scannable , connectable and unscannable, unconnectable and scannable, unconnectable and unscannable.
  • the first device receives a scan response or establishes a connection with the second device.
  • step S840 if the first device initiates a connection request, the second device establishes a connection with the first device.
  • the first device initiates a scan request, and the second device sends a scan response frame to the first device, and more information is included in the scan response frame.
  • the first device may receive other indication information, and the first device determines the reception of the subsequent broadcast message frame according to the first indication information and other indication information, and the broadcast message frame may include an extended broadcast frame and a scan response Frames, etc.
  • the broadcast message frame may include an extended broadcast frame and a scan response Frames, etc.
  • the second device adds the first indication information to the frame header or payload of the basic broadcast frame, so that the first device can know whether the content of the extended broadcast frame is different from the content it received before. Change, so as to determine whether to receive the extended broadcast frame, and provide a flexible method for processing broadcast information.
  • the first device does not need to receive the extended broadcast frame, thereby reducing the power consumption of the first device.
  • FIG. 9 is another example of the broadcast information processing method of the embodiment of the present application. As shown in Figure 9, the method 900 includes:
  • the first device receives the basic broadcast frame sent by the second device.
  • the first device is an example of a broadcast receiver
  • the second device is an example of a broadcast sender.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the second device.
  • the first device parses the basic broadcast frame to acquire second indication information.
  • the second indication information is located in the physical layer header of the basic broadcast frame, and includes one or more bits.
  • the physical layer header of the basic broadcast frame may also include the codec, new transmission, and Instructions and other physical layer control information.
  • the position of the second indication information in the frame header of the physical layer is shown in FIG. 6, and the second indication information may be bits added in the frame header of the basic broadcast frame. Bits that exist in the frame header of the basic broadcast frame. Optionally, the bits that exist are temporarily unused bits.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the second indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits
  • the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the second indication information in the payload header of the physical layer of the basic broadcast frame is shown in FIG. 7 .
  • the second indication information may be one or more bits added to the payload header of the physical layer of the basic broadcast frame. Bits, optional, the existing bits are temporarily unused bits.
  • the physical layer processing entity (or module) of the first device parses the physical layer frame header of the basic broadcast frame to obtain the second indication information, or, the high-level processing entity (or module) of the first device parses the physical layer header of the basic broadcast frame
  • the payload header is used to acquire the second indication information.
  • the second indication information is used to indicate the broadcast type, and the type may include: connectable, unconnectable, scannable, and unscannable.
  • the type can be represented by two bits.
  • the bit 00 can represent scannable and connectable
  • 01 can represent scannable and non-connectable
  • 10 can represent unscannable and connectable
  • 11 Indicates unscannable and unconnectable, and the embodiment of this application does not limit the representation method.
  • the first device determines whether to receive the extended broadcast frame according to the second indication information.
  • the first device receives the basic broadcast frame, and further parses the second indication information in the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame.
  • the first device determines whether the broadcast type is the target type according to the second indication information, and if the broadcast type is the target type of the first device, the first device receives the extended broadcast frame. If the broadcast type is not the target type of the first device, optionally, the first device does not receive the extended broadcast frame. Optionally, the first device may receive the extended broadcast frame, but step S940 and step S950 are not performed.
  • the first device initiates a scan request or a connection request.
  • the first device determines that the broadcast type is the target type, receives the extended broadcast frame, and initiates a scan request or a connection request to the second device.
  • the first device receives a scan response or establishes a connection with the second device.
  • step S940 if the first device initiates a connection request, the second device establishes a connection with the first device. The first device initiates a scan request, and the second device sends a scan response frame to the first device, and more information is included in the scan response frame.
  • the first device may receive other indication information, and the first device determines the receiving status of the subsequent broadcast message frame according to the second indication information and other indication information.
  • the first device may receive other indication information, and the first device determines the receiving status of the subsequent broadcast message frame according to the second indication information and other indication information.
  • the method provided by the embodiment of the present application can make the first device know the type of the broadcast in advance by adding the second indication information to the frame header or payload of the basic broadcast frame, so as to determine whether it is the target type, thereby determining whether to receive the extended
  • the broadcast frame and the subsequent communication process provide a flexible method for processing broadcast information. If the extended broadcast frame is not received, the power consumption of the first device can be reduced.
  • FIG. 10 is an example of a method for processing broadcast information according to an embodiment of the present application. As shown in Figure 10, the method 1000 includes:
  • the first device receives the basic broadcast frame sent by the second device.
  • the first device is an example of a broadcast receiver
  • the second device is an example of a broadcast sender.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the second device.
  • the first device parses the basic broadcast frame to obtain third indication information.
  • the third indication information is located in the physical layer frame header of the basic broadcast frame, including one or more bits, and the physical layer frame header of the basic broadcast frame may also include codec, new transmission and old transmission Instructions and other physical layer control information.
  • the position of the third indication information in the frame header of the physical layer is shown in FIG. Bits that exist in the frame header of the basic broadcast frame.
  • the bits that exist are temporarily unused bits.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the third indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the third indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the third indication information may be a bit added in the payload header of the basic broadcast frame. It should be understood that the third indication information may also be a bit existing in the payload header of the basic broadcast frame. Optionally, The existing bits are temporarily unused bits.
  • the physical layer processing entity (or module) of the first device parses the physical layer frame header of the basic broadcast frame to obtain the third indication information, or, the high-level processing entity (or module) of the first device parses the physical layer header of the basic broadcast frame Payload header, to obtain the third indication information.
  • the third indication information is used to indicate whether the content of the extended broadcast frame changes, for example, the third indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the extended broadcast frame changes.
  • the embodiment of this application does not limit the representation method.
  • the first device determines whether to receive the extended broadcast frame according to the third indication information.
  • the first device determines that the content of the scan response frame has not changed according to the third indication information, the first device does not need to receive the extended broadcast frame, nor does it need to initiate subsequent procedures. If the first device determines according to the third indication information that the content of the scan response frame changes, the first device receives the extended broadcast frame.
  • the first device initiates a scan request.
  • this step is optional. If the first device determines that the content of the scan response frame has not changed according to the third indication information, the first device does not perform subsequent procedures, the first device does not receive the extended broadcast frame, and does not initiate a scan request. If the first device determines that the content of the scan response frame has changed according to the third indication information, the first device determines that it needs to receive the scan response frame, correspondingly, the first device needs to receive the extended broadcast frame, and according to the content of the extended broadcast frame and the basic broadcast frame content to initiate a scan request.
  • the first device receives a scan response frame.
  • step S1040 After the first device initiates a scan request, it receives a scan response frame.
  • the third indication information is included in the frame header or payload header of the extended broadcast frame.
  • the first device receives the basic broadcast frame, and receives the extended broadcast frame according to the content of the basic broadcast frame, The extended broadcast frame is analyzed to obtain third indication information, and if the third indication information indicates that the content of the scan response frame changes, the first device initiates a scan request and receives the scan response frame from the second device. If the third indication information indicates that the content of the scan response frame has not changed, the first device does not initiate a scan request, or, the first device initiates a scan request but does not receive a scan response frame.
  • the first device may receive other indication information, and the first device determines the receiving status of the subsequent broadcast message frame according to the third indication information and other indication information.
  • the first device may receive other indication information, and the first device determines the receiving status of the subsequent broadcast message frame according to the third indication information and other indication information.
  • the method provided by the embodiment of this application can enable the first device to determine whether the content of the scan response frame has The indication information determines whether to receive subsequent broadcast messages, and provides a flexible method for processing broadcast information. If no extended broadcast frame or scan response frame is received, power consumption of the first device can be reduced.
  • FIG. 11 is an example of a communication device according to an embodiment of the present application, and each unit in the communication device 1100 can be realized by software.
  • the communication device 1100 may be the first device in the method embodiment 500 above, or a chip for realizing the function of the first device in the method embodiment above. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the first device in the method 500 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to receive the basic broadcast frame sent by the second device.
  • the processing unit 1120 is configured to parse the basic broadcast frame and acquire indication information.
  • the communication device may be an example of a broadcast receiver, and the second device may be an example of a broadcast sender.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the transceiver unit 1110 may periodically receive the basic broadcast frame sent by the second device.
  • the indication information is located in the physical layer header of the basic broadcast frame, and includes one or more bits.
  • the physical layer header of the basic broadcast frame may also include codec of the basic broadcast frame, new transmission and old transmission indication, etc. layer control information.
  • the position of the indication information in the frame header of the physical layer is shown in FIG. 6.
  • the indication information may also be a bit existing in the frame header of the basic broadcast frame.
  • the bit existing in itself is Temporarily unused bits.
  • the processing unit 1120 parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the indication information is located in the payload header of the physical layer of the basic broadcast frame, and includes one or more bits.
  • the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame, such as data One or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the link layer.
  • the position of the indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the indication information may be a bit added in the payload header of the basic broadcast frame. It should be understood that the indication information may also be a bit existing in the payload header of the basic broadcast frame. Optionally, the existing bit Bits are temporarily unused bits.
  • the physical layer processing entity (or module) of the processing unit 1120 parses the basic broadcast frame to obtain indication information, or the high-level processing entity (or module) of the processing unit 1120 parses the basic broadcast frame to obtain indication information.
  • the instruction information includes at least one of the following:
  • the first indication information is used to indicate whether the content of the extended broadcast frame changes, for example, the first indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the extended broadcast frame changes.
  • the embodiment of this application does not limit the representation method.
  • the second indication information is used to indicate the broadcast type, and the broadcast type may include: scannable, connectable, unscannable, and unconnectable.
  • the broadcast type indicated by the second indication information may be indicated by bits of the second indication information, for example, two bits may be used to indicate the broadcast type, 00 may indicate scannable and connectable, 01 may Indicates scannable and unconnectable, 10 indicates unscannable and connectable, 11 indicates unscannable and unconnectable, and this embodiment of the application does not limit the representation method.
  • the third indication information is used to indicate whether the content of the scan response frame is changed, for example, the third indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the scan response frame is changed.
  • the embodiment of this application does not limit the representation method.
  • the processing unit 1120 is further configured to determine whether to receive the extended broadcast frame according to the indication information.
  • the indication information may include any one of first indication information, second indication information, and third indication information.
  • the indication information may include first indication information. If the first indication information indicates that the content of the extended broadcast frame changes, the transceiver unit 1110 receives the extended broadcast frame; if the first indication information indicates that the content of the extended broadcast frame does not change, the transceiver unit 1110 does not receive the extended broadcast frame. It should be noted that the transceiver unit 1110 has received the extended broadcast frame with the same content as the extended broadcast frame before this broadcast, and the processing unit 1120 has cached the content of the extended broadcast frame. Therefore, the extended broadcast frame of this time If the content of the extended broadcast frame has not changed, the transceiver unit 1110 may not receive the extended broadcast frame, and use the buffered extended broadcast frame content to perform subsequent procedures. Thereby saving power consumption.
  • the first indication information may indicate that the content of the extended broadcast frame this time has not changed compared with the content of the previous extended broadcast frame.
  • the processing unit 1120 initiates a scan request or a connection request in combination with the content of the basic broadcast frame according to the content of the received extended broadcast frame or the previously cached extended broadcast frame, and further receives a scan response frame or establishes a connection. It should be noted that the processing unit 1120 determines the window position of the scan request or the connection request according to the content of the extended broadcast frame and the real content of the basic broadcast, specifically, according to the req-offset information and latency information of the extended broadcast frame and the basic broadcast frame The information in determines the location of the window.
  • the indication information may include second indication information, and the second indication information indicates the broadcast type, and if the processing unit 1120 determines that the broadcast type is the target type, the transceiver unit 1110 receives the extended broadcast frame, further, A scan request or a connection request is initiated according to the content of the extended broadcast frame, and further, a scan response frame is received or a connection is established. If the processing unit 1120 determines that the broadcast type is not the target type, the transceiver unit 1110 does not receive the extended broadcast frame, correspondingly, does not initiate a scan request or connection request, does not receive a scan response frame or establishes a connection.
  • the indication information includes third indication information, where the third indication information indicates whether the scan response frame changes. If the third indication information indicates that the content of the scan response frame has not changed, the transceiving unit 1110 does not need to receive the scan response frame. Correspondingly, there is no need to receive the extended broadcast frame, further, no scan request is initiated, and further, no scan response frame is received. If the third indication information indicates that the content of the scan response frame changes, the transceiver unit 1110 receives the extended broadcast frame, further initiates a scan request according to the content of the extended broadcast frame, and further receives the scan response frame.
  • the third indication information may be included in the physical layer header or the payload header of the extended broadcast frame.
  • the transceiver unit 1110 receives the basic broadcast frame, and receives the extended broadcast according to the content of the basic broadcast frame according to the communication process. frame, and then analyze the third indication information in the extended broadcast frame at the physical layer, if the third indication information included in the extended broadcast frame indicates that the content of the scan response frame changes, the transceiver unit 1110 initiates a scan request according to the content of the extended broadcast frame, Further, the transceiver unit 1110 receives the scan response frame.
  • the processing unit 1120 does not initiate a scan request, or the processing unit 1120 initiates a scan request according to the content of the basic broadcast frame and the content of the extended broadcast frame, and does not receive the scan response frame.
  • the indication information may include any two of first indication information, second indication information, and third indication information. There is a priority relationship between the first indication information, the second indication information, and the third indication information. In the embodiment of the present application, the priority relationship may be that the second indication information is higher than the third indication information and higher than the first indication information. information. In this embodiment of the present application, the foregoing priority is taken as an example for description. It should be understood that the indication information may have priorities in other orders, and any combination of priorities is applicable to this embodiment of this application, which is not limited in this embodiment of this application.
  • the indication information may include first indication information and second indication information. If the processing unit 1120 determines that the broadcast type is not the target type according to the second indication information, regardless of whether the content of the extended broadcast frame indicated by the first indication information changes, the transceiver unit 1110 does not receive the extended broadcast frame, and further, the processing unit 1120 does not initiate a scan request or connection request, further, the transceiver unit 1110 does not receive a scan response frame or establish a connection.
  • the processing unit 1120 determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the transceiver unit 1110 When receiving the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the transceiver unit 1110 does not receive the extended broadcast frame. Further, the processing unit 1120 initiates a scan request or a connection request according to the content of the extended broadcast frame received this time or the previously buffered extended broadcast frame, and further, receives a scan response frame or establishes a connection.
  • the indication information may include first indication information and third indication information. If the processing unit 1120 determines that the content of the scan response frame does not change according to the third indication information, regardless of whether the content of the extended broadcast frame indicated by the first indication information changes, the transceiver unit 1110 does not receive the extended broadcast frame, further, the processing unit 1120 does not A scan request is initiated, and further, the transceiver unit 1110 does not receive a scan response frame.
  • the processing unit 1120 determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the transceiver unit 1110 Receive the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the transceiver unit 1110 does not receive the extended broadcast frame, further, the processing unit 1120 according to the extended broadcast frame received this time or the previously buffered extended broadcast frame Content, combined with the content of the basic broadcast frame to initiate a scan request, and further, receive a scan response frame.
  • the indication information may include second indication information and third indication information. If the first device determines that the broadcast type is not the target type according to the second indication information, regardless of whether the content of the scan response frame indicated by the third indication information changes, the transceiver unit 1110 does not receive the extended broadcast frame, and further, the processing unit 1120 does not initiate a scan Request, further, the transceiver unit 1110 does not receive the scan response frame.
  • the processing unit 1120 determines whether to receive the extended broadcast frame according to the third indication information, and if the third indication information indicates that the content of the scan response frame changes, the transceiver unit 1110 receives The extended broadcast frame, further, initiate a scan request according to the content of the extended broadcast frame, further, receive the scan response frame, if the third indication information indicates that the content of the scan response frame has not changed, the transceiver unit 1110 does not receive the extended broadcast frame, and further , will not initiate a scan request, and further, will not receive a scan response frame.
  • the indication information can include two types.
  • the third indication information can be included in the extended broadcast frame, and the first indication information can be included in the basic broadcast frame.
  • the third indication can only be resolved by receiving the extended broadcast frame. If the extended broadcast frame is not received, it means that there is no third indication information.
  • the processing unit 1120 confirms that the content of the extended broadcast frame changes according to the first indication information, receives the extended broadcast frame, receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the scan response frame changes, the processing unit 1120 initiates a scan Request, further, receiving a scan response frame, if the third indication information indicates that the scan response frame has not changed, the processing unit 1120 initiates a scan request, does not receive a scan response frame, or the processing unit 1120 does not initiate a scan request.
  • the processing unit 1120 confirms that the content of the extended broadcast frame has not changed according to the first indication information, and does not receive the extended broadcast frame, further, it initiates a scan request according to the content of the extended broadcast frame cached in the content of the basic broadcast frame, and further, receives the scan request response.
  • the indication information may include two types, the third indication information may be included in the extended broadcast frame, and the second indication information may be included in the basic broadcast frame. If the broadcast type indicated by the second indication information is the target type of the processing unit 1120, the transceiver unit 1110 receives the extended broadcast frame, receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the scan response frame changes, the processing unit 1120 initiates a scan request, further, receives a scan response frame, if the third indication information indicates that the scan response frame has not changed, the processing unit 1120 initiates a scan request and does not receive a scan response frame, or the processing unit 1120 does not initiate a scan request. If the broadcast type indicated by the second indication information is not the target type of the processing unit 1120, the transceiver unit 1110 does not receive the extended broadcast frame, further, does not initiate a scan request, and further, does not receive a scan response frame.
  • the indication information may include first indication information, second indication information, and third indication information. There is a priority relationship between the first indication information, the second indication information, and the third indication information. In the embodiment of the present application, the priority relationship may be that the second indication information is higher than the third indication information and higher than the first indication information. information. In this embodiment of the present application, the foregoing priority is taken as an example for description. It should be understood that the indication information may have priorities in other orders, and any combination of priorities is applicable to this embodiment of this application, which is not limited in this embodiment of this application.
  • the three types of indication information may be included in the basic broadcast frame. If the processing unit 1120 determines that the broadcast type is not the target type according to the second indication information, regardless of the content indicated by the first indication information and the second indication information, the transceiver unit 1110 The extended broadcast frame is not received, further, a scan request is not initiated, and further, a scan response is not received.
  • processing unit 1120 determines whether to receive the extended broadcast frame according to the third indication information, and if the third indication information indicates that the scan response frame does not change, the transceiver unit 1110 does not receive the extended broadcast frame, further, does not initiate a scanning request, and further, does not receive a scanning response.
  • the processing unit 1120 determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame changes, the transceiver unit 1110 receives the extended broadcast frame, if the first indication information indicates that the content of the extended broadcast frame has not changed, the transceiver unit 1110 does not receive the extended broadcast frame, and further, the processing unit 1020 combines the contents of the extended broadcast frame received this time or the previously buffered extended broadcast frame.
  • the content of the basic broadcast frame initiates a scan request, and further, receives a scan response frame.
  • the first indication information and the second indication information may be included in the basic broadcast frame
  • the third indication information may be included in the extended broadcast frame.
  • the transceiver unit 1110 receives the basic broadcast frame, and determines the broadcast according to the second indication information. If the type is not the target type, regardless of the content indicated by the first indication information and the third indication information, the transceiver unit 1110 does not receive the extended broadcast frame, further, does not initiate a scanning request, and further, does not receive a scanning response.
  • the processing unit 1120 determines that the broadcast type is the target type according to the second indication information, further, the first device determines whether to receive the extended broadcast frame according to the first indication information, and if the first indication information indicates that the content of the extended broadcast frame has not changed, The transceiver unit 1110 does not receive the extended broadcast frame. Correspondingly, the transceiver unit 1110 cannot receive the third indication information.
  • the processing unit 1120 initiates a scanning request according to the content of the extended broadcast frame buffered by the first device and the content of the basic broadcast frame, and further , receive a scan response frame.
  • the transceiver unit 1110 receives the extended broadcast frame, further, receives the third indication information in the extended broadcast frame, and if the third indication information indicates that the content of the scan response frame changes, The processing unit 1120 initiates a scan request, and further receives a scan response. If the third indication information indicates that the content of the scan response frame has not changed, the processing unit 1120 does not initiate a scan request or initiates a scan request without receiving a scan response frame.
  • the communication apparatus 1000 may be the second device in the above method embodiment 500, or may be a chip for realizing the function of the second device in the above method embodiment. It should be understood that the communications apparatus 1000 may correspond to the steps corresponding to the second device in the method 500 in the embodiment of the present application.
  • the communication device 1000 includes:
  • the transceiver unit 1110 is configured to send the basic broadcast frame to the first device.
  • the processing unit 1120 is configured to determine indication information.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the transceiver unit 1110 .
  • the indication information is located in the physical layer header of the basic broadcast frame, and includes one or more bits.
  • the physical layer header of the basic broadcast frame may also include codec of the basic broadcast frame, new transmission and old transmission indication, etc. layer control information.
  • the position of the indication information in the physical layer frame header is shown in Figure 6, the indication information can be the bit added in the frame header of the basic broadcast frame, it should be understood that the indication information can also be the frame header of the basic broadcast frame Optionally, the existing bits are temporarily unused bits.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the indication information is located in the payload header of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame, such as the data link layer One or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority.
  • the position of the indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the indication information may be a bit added in the payload header of the basic broadcast frame. It should be understood that the indication information may also be a bit existing in the payload header of the basic broadcast frame. Optionally, the existing bit Bits are temporarily unused bits.
  • the physical layer processing entity (or module) of the first device parses the physical layer frame header of the basic broadcast frame to obtain indication information, or, the high-level processing entity (or module) of the first device parses the payload header of the physical layer of the basic broadcast frame to get instructions.
  • the instruction information includes at least one of the following:
  • the first indication information is used to indicate whether the content of the extended broadcast frame changes, for example, the first indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the extended broadcast frame changes.
  • the embodiment of this application does not limit the representation method.
  • the second indication information is used to indicate the broadcast type, and the broadcast type may include: scannable, connectable, unscannable, and unconnectable.
  • the broadcast type indicated by the second indication information may be indicated by bits of the second indication information, for example, two bits may be used to indicate the broadcast type, 00 may indicate scannable and connectable, 01 may Indicates scannable and unconnectable, 10 indicates unscannable and connectable, 11 indicates unscannable and unconnectable, and this embodiment of the application does not limit the representation method.
  • the third indication information is used to indicate whether the content of the scan response frame is changed, for example, the third indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the scan response frame is changed.
  • the embodiment of this application does not limit the representation method.
  • the communication device 1100 may be the first device in the method embodiment 800 above, or a chip for realizing the function of the first device in the method embodiment above. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the first device in the method 800 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to receive the basic broadcast frame sent by the second device.
  • the processing unit 1120 is configured to parse the basic broadcast frame at the physical layer, and acquire the first indication information.
  • the communication device is an example of a broadcast receiver
  • the second device is an example of a broadcast sender.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the second device.
  • the first indication information is located in the physical layer frame header of the basic broadcast frame, including one or more bits, and the physical layer frame header of the basic broadcast frame may also include the codec of the basic broadcast frame, a new transmission and an old transmission indication and other physical layer control information.
  • the position of the first indication information in the frame header of the physical layer is shown in FIG. 6.
  • the first indication information may be bits added in the frame header of the basic broadcast frame. Bits that exist in the frame header of the basic broadcast frame. Optionally, the bits that exist are temporarily unused bits.
  • the processing unit 1120 parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the first indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the first indication information in the payload header of the physical layer of the basic broadcast frame is shown in FIG. 7 .
  • the first indication information may be one or more bits added to the payload header of the physical layer of the basic broadcast frame. It should be understood that the first indication information may also be the payload header of the physical layer of the basic broadcast frame.
  • a bit that exists by itself, optionally, the bit that exists by itself is a bit that is not used temporarily.
  • the physical layer processing entity (or module) of the processing unit 1120 parses the physical layer frame header of the basic broadcast frame to obtain the first indication information, or, the high-level processing entity (or module) of the processing unit 1120 parses the effective The payload header is used to acquire the first indication information.
  • the first indication information is used to indicate whether the content of the extended broadcast frame changes, for example, the first indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the extended broadcast frame changes.
  • the embodiment of this application does not limit the representation method.
  • the first indication information indicates that the content of the extended broadcast frame changes.
  • the first indication information may indicate that the content of the extended broadcast frame has changed compared with the previous broadcast.
  • the first indication information indicates that the content of the extended broadcast frame has not changed.
  • the first indication information may indicate that the content of the extended broadcast frame has not changed compared with the previous broadcast.
  • the processing unit 1120 is further configured to determine whether to receive the extended broadcast frame according to the first indication information.
  • the transceiver unit 1110 receives the basic broadcast frame, and further obtains the first indication information in the physical layer header of the basic broadcast frame or the payload header of the physical layer of the basic broadcast frame by parsing.
  • the first indication information indicates that the content of the extended broadcast frame is changed. Specifically, the meaning of the content of the extended broadcast frame is changed is similar to the previous description.
  • the transceiver unit 1110 receives the extended broadcast frame according to the first indication information.
  • the first indication information indicates that the content of the extended broadcast frame has not changed. Specifically, the meaning of the content of the extended broadcast frame has not changed is similar to the previous description. Correspondingly, the content of the extended broadcast frame has not changed, and the processing unit 1120 has buffered the content of the extended broadcast frame. The content of the extended broadcast frame is the same as the extended broadcast frame, therefore, the processing unit 1120 is buffered with the content of the extended broadcast frame. The processing unit 1120 does not receive the extended broadcast frame according to the first indication information.
  • the processing unit 1120 is also configured to initiate a scan request or a connection request.
  • the processing unit 1120 determines the start position of the scan request or connection request window according to the content of the extended broadcast frame received this time or previously cached, and initiates a scan request or connection request to the second device at this position.
  • the broadcast type can be divided into: scannable, connectable, unscannable, and unconnectable.
  • this type connectable and scannable, and Connected and unscannable, unconnectable and scannable, unconnectable and unscannable.
  • the transceiver unit 1110 receives a scan response or establishes a connection with the second device.
  • the second device if the processing unit 1120 initiates a connection request, the second device establishes a connection with the communication device. What the processing unit 1120 initiates is a scan request, and the second device sends a scan response frame to the transceiver unit 1110, and there is more information in the scan response frame.
  • the transceiver unit 1110 may receive other indication information, and the processing unit 1120 determines the reception of the subsequent broadcast message frame according to the first indication information and other indication information.
  • the processing unit 1120 determines the reception of the subsequent broadcast message frame according to the first indication information and other indication information.
  • the communication device corresponding to the method 500 refer to the communication device corresponding to the method 500 .
  • the communication device 1100 may be the second device in the method embodiment 800 above, or a chip configured to realize the functions of the second device in the method embodiment above. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the second device in the method 800 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to send the basic broadcast frame to the first device.
  • the processing unit 1120 is configured to determine first indication information.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more designated broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the transceiver unit 1110 .
  • the first indication information is located in the physical layer frame header of the basic broadcast frame, including one or more bits, and the physical layer frame header of the basic broadcast frame may also include the codec of the basic broadcast frame, a new transmission and an old transmission indication and other physical layer control information.
  • the position of the indication information in the frame header of the physical layer is shown in Figure 6.
  • the first indication information may be bits added in the frame header of the basic broadcast frame. It should be understood that the first indication information may also be the basic broadcast frame header. Bits that exist in the frame header of the frame. Optionally, the bits that exist are temporarily unused bits.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the first indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the first indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the first indication information may be one or more bits added to the payload header of the physical layer of the basic broadcast frame. It should be understood that the first indication information may also be the payload header of the physical layer of the basic broadcast frame.
  • a bit that exists by itself, optionally, the bit that exists by itself is a bit that is not used temporarily.
  • the physical layer processing entity (or module) of the first device parses the physical layer frame header of the basic broadcast frame to obtain the first indication information, or, the high-level processing entity (or module) of the first device parses the physical layer header of the basic broadcast frame
  • the payload header is used to acquire the first indication information.
  • the communication device 1100 may be the first device in the above method embodiment 900, or may be a chip for realizing the function of the first device in the above method embodiment. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the first device in the method 900 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to receive the basic broadcast frame sent by the second device.
  • the processing unit 1120 is configured to parse the basic broadcast frame and acquire second indication information.
  • the communication device is an example of a broadcast receiver
  • the second device is an example of a broadcast sender.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the transceiver unit 1110 may periodically receive the basic broadcast frame sent by the second device.
  • the second indication information is located in the physical layer header of the basic broadcast frame, and includes one or more bits.
  • the physical layer header of the basic broadcast frame may also include the codec, new transmission, and Instructions and other physical layer control information.
  • the position of the second indication information in the frame header of the physical layer is shown in FIG. 6, and the second indication information may be bits added in the frame header of the basic broadcast frame. Bits that exist in the frame header of the basic broadcast frame. Optionally, the bits that exist are temporarily unused bits.
  • the processing unit 1120 parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the second indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the second indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the second indication information may be a bit added in the payload header of the basic broadcast frame. It should be understood that the second indication information may also be a bit existing in the payload header of the basic broadcast frame. Optionally, The existing bits are temporarily unused bits.
  • the physical layer processing entity (or module) of the processing unit 1120 parses the physical layer frame header of the basic broadcast frame to obtain the second indication information, or, the high-level processing entity (or module) of the processing unit 1120 parses the effective The payload header is used to obtain the second indication information.
  • the second indication information is used to indicate the broadcast type, and the broadcast type may include: scannable, unscannable, connectable, and unconnectable.
  • the broadcast type may include: scannable, unscannable, connectable, and unconnectable.
  • two bits in the second indication information may be used to indicate the type of the broadcast, for example, 00 may indicate scannable and connectable, 01 may indicate scannable and unconnectable, and 10 may indicate unscannable and connectable, 11 can mean unscannable and unconnectable.
  • the processing unit 1120 is further configured to determine whether to receive the extended broadcast frame according to the second indication information.
  • the transceiver unit 1110 receives the basic broadcast frame, and further parses the second indication information in the physical layer frame header or payload of the basic broadcast frame.
  • the processing unit 1120 determines whether the broadcast type is the target type according to the second indication information, and if the broadcast type is the target type of the first device, the first device receives the extended broadcast frame. If the broadcast type is not the target type of the first device, optionally, the first device does not receive the extended broadcast frame. Optionally, the first device receives the extended broadcast frame, but does not perform subsequent steps.
  • the processing unit 1120 initiates a scan request or a connection request.
  • this step is optional, and the processing unit 1120 determines that the broadcast type is the target type, receives the extended broadcast frame, and initiates a scan request or a connection request to the second device.
  • the transceiving unit 1110 receives a scan response or the processing unit 1120 establishes a connection with a second device.
  • the second device establishes a connection with the processing unit 1120 . What the processing unit 1120 initiates is a scan request, and the second device sends a scan response frame to the transceiver unit 1110, and there is more information in the scan response frame.
  • the transceiver unit 1110 may receive other indication information, and the processing unit 1120 determines the reception of the subsequent broadcast message frame according to the second indication information and other indication information.
  • the processing unit 1120 determines the reception of the subsequent broadcast message frame according to the second indication information and other indication information.
  • the communication device corresponding to the method 500 refer to the communication device corresponding to the method 500 .
  • the communication device 1100 may be the second device in the method embodiment 900 above, or a chip for realizing the function of the second device in the method embodiment above. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the second device in the method 900 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to send the basic broadcast frame to the first device.
  • the processing unit 1120 is configured to determine second indication information.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the transceiver unit 1110 .
  • the second indication information is located in the physical layer header of the basic broadcast frame, and includes one or more bits.
  • the physical layer header of the basic broadcast frame may also include the codec, new transmission, and Instructions and other physical layer control information.
  • the position of the second indication information in the frame header of the physical layer is shown in FIG. 6, and the second indication information may be bits added in the frame header of the basic broadcast frame. Bits that exist in the frame header of the basic broadcast frame. Optionally, the bits that exist are temporarily unused bits.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the second indication information is located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame , such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the second indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the second indication information may be a bit added in the payload header of the basic broadcast frame. It should be understood that the second indication information may also be a bit existing in the payload header of the basic broadcast frame. Optionally, The existing bits are temporarily unused bits.
  • the second indication information is used to indicate the broadcast type.
  • the communication device 1100 may be the first device in the above method embodiment 1000, or may be a chip for realizing the function of the first device in the above method embodiment. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the first device in the method 1000 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to receive the basic broadcast frame sent by the second device.
  • the processing unit 1120 is configured to parse the basic broadcast frame and acquire third indication information.
  • the third indication information may be located in the physical layer frame header of the basic broadcast frame, including one or more bits, and the physical layer frame header of the basic broadcast frame may also include the codec, new transmission Transmission instructions and other physical layer control information.
  • the position of the third indication information in the frame header of the physical layer is shown in FIG. Bits that exist in the frame header of the basic broadcast frame.
  • the bits that exist are temporarily unused bits.
  • the processing unit 1120 parses the physical layer frame header of the basic broadcast frame, which can reduce the difficulty of parsing and save resources used for parsing.
  • the third indication information may be located in the payload header of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include high-level control information of the basic broadcast frame, such as One or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the third indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the third indication information may be one or more bits added to the payload header of the physical layer of the basic broadcast frame. It should be understood that the third indication information may also be the payload header of the physical layer of the basic broadcast frame. A bit that exists by itself, optionally, the bit that exists by itself is a bit that is not used temporarily.
  • the physical layer processing entity (or module) of the processing unit 1120 parses the physical layer frame header of the basic broadcast frame to obtain the third indication information, or, the high-level processing entity (or module) of the processing unit 1120 parses the physical layer header of the basic broadcast frame. Payload header, to obtain the third indication information.
  • the processing unit 1120 is further configured to determine whether to receive the extended broadcast frame according to the third indication information.
  • the transceiver unit 1110 determines that the content of the scan response frame has not changed according to the third indication information, the transceiver unit 1110 does not need to receive the extended broadcast frame, and does not need to initiate subsequent procedures. If the processing unit 1120 determines according to the third indication information that the content of the scan response frame changes, the transceiver unit 1110 receives the extended broadcast frame.
  • the processing unit 1120 is also configured to initiate a scan request.
  • this step is optional. If the processing unit 1120 determines that the content of the scan response frame has not changed according to the third indication information, the processing unit 1120 does not perform subsequent processes, the first device does not receive the extended broadcast frame, and does not initiate a scan request. If the processing unit 1120 determines that the content of the scan response frame has changed according to the third indication information, the processing unit 1120 determines that the scan response frame needs to be received. Correspondingly, the transceiver unit 1110 needs to receive the extended broadcast frame. content to initiate a scan request.
  • the transceiver unit 1110 is also used for receiving scan response frames.
  • this step is optional, and after the processing unit 1120 initiates the scanning request, it receives the scanning response frame.
  • the third indication information is included in the frame header or payload header of the extended broadcast frame.
  • the transceiver unit 1110 receives the basic broadcast frame, receives the extended broadcast frame according to the content of the basic broadcast frame, The extended broadcast frame is analyzed at the physical layer to obtain third indication information, and if the third indication information indicates that the content of the scan response frame changes, the processing unit 1120 initiates a scan request, and receives the scan response frame from the second device. If the third indication information indicates that the content of the scan response frame has not changed, the processing unit 1120 does not initiate a scan request, or, the processing unit 1120 initiates a scan request but does not receive a scan response frame.
  • the transceiving unit 1110 may receive other indication information, and the processing unit 1120 determines the reception of the subsequent broadcast message frame according to the third indication information and other indication information.
  • the processing unit 1120 determines the reception of the subsequent broadcast message frame according to the third indication information and other indication information.
  • the communication device corresponding to the method 500 refer to the communication device corresponding to the method 500 .
  • the communication device 1100 may be the second device in the above method embodiment 1000, or may be a chip for realizing the function of the second device in the above method embodiment. It should be understood that the communication apparatus 1100 may correspond to the steps corresponding to the second device in the method 1000 in the embodiment of the present application.
  • the communication device 1100 includes:
  • the transceiver unit 1110 is configured to send the basic broadcast frame to the first device.
  • the processing unit 1120 is configured to determine third indication information.
  • a broadcast message may include two parts: a basic broadcast frame and an extended broadcast frame (or extended data frame), wherein the basic broadcast frame may be repeatedly sent on one or more specified broadcast channels in sequence, and the extended broadcast frame may be different from the basic broadcast frame. sent on the data channel.
  • the first device may periodically receive the basic broadcast frame sent by the transceiver unit 1110 .
  • the third indication information may be located in the physical layer frame header of the basic broadcast frame, including one or more bits, and the physical layer frame header of the basic broadcast frame may also include the codec, new transmission Transmission instructions and other physical layer control information.
  • the position of the third indication information in the physical layer frame header is shown in Figure 6.
  • the third indication information may be one or more bits added in the frame header of the basic broadcast frame. It should be understood that the third indication information
  • the information may also be bits existing in the frame header of the basic broadcast frame. Optionally, the bits existing in the frame are temporarily unused bits.
  • the first device parses the frame header of the basic broadcast frame at the physical layer, which can reduce the difficulty of parsing and save resources used for parsing.
  • the third indication information may be located in the payload header of the physical layer of the basic broadcast frame, including one or more bits, and the payload header of the physical layer of the basic broadcast frame may also include the high-level control information of the basic broadcast frame. Information, such as one or more control information related to the link layer such as segmentation, reassembly, multiplexing, and logical channel priority of the data link layer.
  • the position of the third indication information in the payload header of the basic broadcast frame is shown in FIG. 7 .
  • the third indication information may be one or more bits added to the payload header of the physical layer of the basic broadcast frame. It should be understood that the third indication information may also be the payload header of the physical layer of the basic broadcast frame. A bit that exists by itself, optionally, the bit that exists by itself is a bit that is not used temporarily.
  • the third indication information is used to indicate whether the content of the scan response frame is changed, for example, the third indication information may include 1 bit, and 0 or 1 is used to indicate whether the content of the scan response frame is changed.
  • the embodiment of this application does not limit the representation method.
  • FIG. 12 is a schematic diagram of a communication device 1200 according to an embodiment of the present application.
  • the communication device 1200 includes: a transceiver 1210 , a processor 1220 and a memory 1230 .
  • the memory 1230 is used for storing instructions.
  • the processor 1220 is coupled with the memory 1230, and is used to execute the instructions stored in the memory, so as to execute the method provided by the above-mentioned embodiment of the present application
  • the transceiver 1210 in the communication device 1200 may correspond to the transceiver unit 1110 in the communication device 1100
  • the processor 1220 in the communication device 1200 may correspond to the processing unit 1120 in the communication device 1100 .
  • the memory 1230 and the processor 1220 may be combined into one processing device, and the processor 1220 is configured to execute the program codes stored in the memory 1230 to implement the above functions.
  • the memory 1230 may also be integrated in the processor 1220 , or be independent of the processor 1220 .
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part 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 may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

本申请提供了一种处理广播信息的方法和通信装置,该处理广播信息的方法包括:第一设备接收第二设备发送的基础广播帧;第一设备在物理层解析所述基础广播帧,获取指示信息,指示信息包括以下至少一项:第一指示信息,第一指示信息用于指示扩展广播帧的内容是否发生改变,第二指示信息,第二指示信息用于指示广播的类型,第三指示信息,第三指示信息用于指示扫描响应帧的内容是否发生改变;第一设备根据指示信息确定是否接收扩展广播帧。本申请提供的处理广播信息的方法,能够使得第一设备根据指示信息灵活的确定是否接收扩展广播帧,当不接收时,节省了第一设备的功率消耗。

Description

处理广播信息的方法和装置
本申请要求于2021年07月21日提交中国专利局、申请号为202110827594.3、申请名称为“处理广播信息的方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域,进一步的,涉及一种处理广播信息的方法和装置。
背景技术
短距通信在人们的日常生活中具有重要的作用,例如在智能终端、智能家居、智能制造、智能汽车等领域都有短距通信的需求。在无线短距通信中,广播消息包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,广播接收方接收基础广播帧,根据基础广播帧里指示的频点、时钟和物理层(Physical Layer,PHY)信息去接收扩展广播帧(或扩展数据帧),进一步的,广播接收方根据扩展广播帧(或扩展数据帧)中的指示信息在相应的窗发起扫描请求和/或连接请求,进一步的,广播接收方接收扫描响应和/或广播接收方与广播发送方完成连接,完成通信流程。
发明内容
本申请提供一种处理广播信息的方法,通过在第二设备向第一设备发送的基础广播帧中添加指示信息,使得第一设备根据指示信息确定是否接收扩展广播帧或扫描响应帧,提供了一种灵活的接收方法,使得第一设备根据指示信息和自身需要确定是否接收后续的广播内容。进一步的,在不接收扩展广播帧或扫描响应帧的情况下,节省了第一设备在广播信息处理过程中的功率消耗。并且,第一设备在物理层解析基础广播帧的帧头中的指示信息,节省了第一设备在解析过程中的功率消耗。
第一方面,提供了一种处理广播信息的通信方法,包括:第一设备接收第二设备发送的基础广播帧;第一设备解析基础广播帧,获取指示信息,指示信息包括以下至少一项:第一指示信息,第一指示信息用于指示扩展广播帧的内容是否发生改变,第二指示信息,第二指示信息用于指示广播的类型,第三指示信息,第三指示信息用于指示扫描响应帧的内容是否发生改变;第一设备根据指示信息确定是否接收扩展广播帧。其中,第一设备可以为广播接收方,第二设备可以为广播发送方。其中,基础广播帧也可以为基础广播物理信道协议数据单元(Protocol Data Unit,PDU),扩展广播帧也可以为扩展广播物理信道PDU。
根据本申请提供的处理广播信息的通信方法,通过在第二设备向第一设备发送的基础广播帧中添加指示信息,使得第一设备根据指示信息确定是否接收扩展广播帧或扫描响应帧,提供了一种灵活的接收方法,使得第一设备根据指示信息和自身需要确定是否接收后 续的广播内容。进一步的,在不接收扩展广播帧或扫描响应帧的情况下,节省了第一设备在广播信息处理过程中的功率消耗。并且,第一设备在物理层解析基础广播帧中的指示信息,节省了第一设备在解析过程中的功率消耗。
结合第一方面,在第一方面的某些实现方式中,该指示信息包括在基础广播帧的物理层帧头或基础广播帧的物理层的有效荷载中,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。第一设备解析该基础广播帧的物理层帧头或该基础广播帧的物理层的有效载荷头,从该基础广播帧的物理层帧头或该基础广播帧的物理层的有效载荷头中获取指示信息。在物理层帧头解析该指示信息,节省了第一设备在解析过程中的功率消耗。
结合第一方面,在第一方面的某些实现方式中,该指示信息可以包括第一指示信息、第二指示信息、第三指示信息中的一种。
可选的,指示信息可以包括第一指示信息,若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧。进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容(本次不接收扩展广播帧,本次扩展广播帧的内容跟之前接收过并缓存的扩展广播帧的内容相同),发起扫描请求或连接请求,进一步的,接收扫描响应帧或建立连接。
可选的,指示信息可以包括第二指示信息,第二指示信息指示的广播的类型可以包括:可扫描,可连接,不可扫描,不可连接,或者,该广播的类型可以为以上四种类型的组合。若第一设备确定广播的类型为目标类型,第一设备接收扩展广播帧,进一步的,第一设备根据扩展广播帧的内容发起扫描请求或连接请求,进一步的,第一设备接收扫描响应帧或与第二设备建立连接。若第一设备确定广播的类型不是目标类型,第一设备不接收扩展广播帧,进一步的,第一设备不会发起扫描请求或连接请求,进一步的,第一设备不接收扫描响应帧或不建立连接。
可选的,指示信息可以包括第三指示信息,若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。若第三指示信息指示扫描响应帧的内容发生改变,第一设备接收扩展广播帧,进一步的,第一设备根据扩展广播帧的内容发起扫描请求,进一步的,第一设备接收扫描响应帧。
可选的,该第三指示信息可以包括在扩展请求帧的帧头或有效载荷头中,第一设备接收基础广播帧,根据基础广播帧的内容接收扩展广播帧,若扩展广播帧中包括的第三指示信息指示扫描响应帧的内容发生改变,第一设备根据扩展广播帧的内容发起扫描请求,进一步的,第一设备接收扫描响应帧。若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不发起扫描请求,或第一设备根据扩展广播帧的内容发起扫描请求,第一设备不接收扫描响应帧。
结合第一方面,在第一方面的某些实现方式中,该指示信息可以包括第一指示信息、第二指示信息、第三指示信息中的任意两种。
可选的,指示信息可以包括第一指示信息和第二指示信息。若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第一指示信息指示扩展广播帧的内容是否发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求或连接请求,进一步的,第一设备不接收扫描响应帧或不建立连接。若第一设备根据第二指示信息确定广播的类型为目标类型,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容(本次不接收扩展广播帧,本次扩展广播帧的内容跟之前接收过并缓存的扩展广播帧的内容相同),发起扫描请求或连接请求,进一步的,第一设备接收扫描响应帧或建立连接。
可选的,指示信息可以包括第一指示信息和第三指示信息。若第一设备根据第三指示信息确定扫描响应帧的内容不发生改变,不论第一指示信息指示扩展广播帧的内容是否发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。若第一设备根据第三指示信息确定扫描响应帧的内容发生改变,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容(本次不接收扩展广播帧,本次扩展广播帧的内容跟之前接收过并缓存的扩展广播帧的内容相同),发起扫描请求,进一步的,第一设备接收扫描响应帧。
可选的,指示信息可以包括第二指示信息和第三指示信息。若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第三指示信息指示扫描响应帧的内容是否发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。若第一设备根据第二指示信息确定广播的类型为目标类型,第一设备根据第三指示信息确定是否接收扩展广播帧,若第三指示信息指示扫描响应帧的内容发生改变,第一设备接收扩展广播帧,进一步,第一设备根据扩展广播帧的内容发起扫描请求,进一步的,第一设备接收扫描响应帧,若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不会发起扫描请求,进一步的,第一设备不接收扫描响应帧。
可选的,第三指示信息可以包括在扩展广播帧中,第一指示信息可以包括在基础广播帧中。若第一设备根据第一指示信息确认扩展广播帧的内容发生改变,第一设备接收扩展广播帧,第一设备在扩展广播帧中接收第三指示信息,若第三指示信息指示扫描响应帧发生改变,第一设备发起扫描请求,进一步的,第一设备接收扫描响应帧,若第三指示信息指示扫描响应帧未发生改变,第一设备发起扫描请求,第一设备不接收扫描响应帧,或第一设备不发起扫描请求。若第一设备根据第一指示信息确认扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步的,第一设备根据缓存的扩展广播帧的内容发起扫描请求,进一步的,第一设备接收扫描响应。
可选的,第三指示信息可以包括在扩展广播帧中,第二指示信息可以包括在基础广播帧中。若第二指示信息指示的广播类型为第一设备的目标类型,第一设备接收扩展广播帧, 在扩展广播帧中接收第三指示信息,若第三指示信息指示扫描响应帧发生改变,第一设备发起扫描请求,进一步的,第一设备接收扫描响应帧,若第三指示信息指示扫描响应帧未发生改变,第一设备发起扫描请求,第一设备不接收扫描响应帧,或第一设备不发起扫描请求。若第二指示信息指示的广播类型不是第一设备的目标类型,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。
结合第一方面,在第一方面的某些实现方式中,该指示信息可以包括第一指示信息、第二指示信息和第三指示信息。
可选的,三种指示信息包括在基础广播帧中,若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第一指示信息和第二指示信息指示的内容,第一设备不接收扩展广播帧,进一步,第一设备不发起扫描请求,进一步,第一设备不接收扫描响应。若第一设备根据第二指示信息确定广播的类型为目标类型,第一设备根据第三指示信息确定是否接收扩展广播帧,若扫描响应帧不发生改变,第一设备不接收扩展广播帧,进一步,第一设备不发起扫描请求,进一步,第一设备不接收扫描响应。若扫描响应帧发生改变,第一设备根据第一指示信息确定是否接收扩展广播帧,若扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容(本次不接收扩展广播帧,本次扩展广播帧的内容跟之前接收过并缓存的扩展广播帧的内容相同),发起扫描请求,进一步的,第一设备接收扫描响应帧。
可选的,第一指示信息和第二指示信息可以包括在基础广播帧中,第三指示信息可以包括在扩展广播帧中,第一设备接收基础广播帧,根据第二指示信息确定广播类型不是目标类型,则不论第一指示信息和第三指示信息指示的内容,第一设备不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若第一设备根据第二指示信息确定广播的类型为目标类型,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,相应的,第一设备无法接收第三指示信息,第一设备根据第一设备根据之前缓存的扩展广播帧的内容(本次不接收扩展广播帧,本次扩展广播帧的内容跟之前接收过并缓存的扩展广播帧的内容相同),发起扫描请求,进一步的,第一设备接收扫描响应帧。若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,进一步的,第一设备接收扩展广播帧中的第三指示信息,若第三指示信息指示扫描响应帧的内容发生改变,第一设备发起扫描请求,进一步的,第一设备接收扫描响应,若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不发起扫描请求或第一设备发起扫描请求但不接收扫描响应帧。
第二方面,提供了一种处理广播信息的通信方法,包括:第二设备向第一设备发送基础广播帧,基础广播帧中包括指示信息,指示信息需要第一设备解析获取,指示信息包括以下至少一项:第一指示信息,第一指示信息用于指示扩展广播帧的内容是否发生改变,第二指示信息,第二指示信息用于指示广播的类型,第三指示信息,第三指示信息用于指示扫描响应帧的内容是否发生改变。
根据本申请提供的处理广播信息的通信方法,通过在第二设备向第一设备发送的基础广播帧中添加指示信息,使得第一设备根据指示信息确定是否接收扩展广播帧或扫描响应帧,提供了一种灵活的接收方法,使得第一设备根据实际情况确定是否接收后续的广播内 容。进一步的,在不接收扩展广播帧或扫描响应帧的情况下,节省了第一设备在广播信息处理过程中的功率消耗。并且,第一设备在物理层解析基础广播帧中的帧头的指示信息,节省了第一设备在解析过程中的功率消耗。
结合第二方面,在第二方面的某些实现方式中,该指示信息包括在基础广播帧的物理层帧头或基础广播帧的物理层的有效荷载头中。该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。第一设备解析该基础广播帧的物理层帧头或该基础广播帧的物理层的有效载荷头,从该基础广播帧的物理层帧头或该基础广播帧的物理层的有效载荷头中获取指示信息。从物理层帧头中解析该指示信息,节省了第一设备在解析过程中的功率消耗。
第三方面,提供了一种通信装置,包括用于执行上述第一方面及其实现方式中的通信方法的各步骤的单元。
在一种设计中,该通信装置为通信芯片,该通信芯片可以包括用于发送信息或数据的输入电路或接口,以及用于接收信息或数据的输出电路或接口。
在另一种设计中,所述通信装置为通信设备(例如,第一设备等),通信芯片可以包括用于发送信息的发射机,以及用于接收信息或数据的接收机。
第四方面,提供了一种通信装置,包括用于执行上述第二方面及其实现方式中的通信方法的各步骤的单元。
在一种设计中,该通信装置为通信芯片,该通信芯片可以包括用于发送信息或数据的输入电路或接口,以及用于接收信息或数据的输出电路或接口。
在另一种设计中,所述通信装置为通信设备(例如,第二设备等),通信芯片可以包括用于发送信息的发射机,以及用于接收信息或数据的接收机。
第五方面,提供了一种通信设备,包括,处理器,存储器,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该通信设备执行上述第一方面或第二方面及其各实现方式中的通信方法。
可选地,所述处理器为一个或多个,所述存储器为一个或多个。
可选地,所述存储器可以与所述处理器集成在一起,或者所述存储器与处理器分离设置。
可选的,该通信设备还包括,发射机(发射器)和接收机(接收器)。
第六方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序(也可以称为代码,或指令),当所述计算机程序被运行时,使得计算机执行上述第一方面或第二方面及其各实现方式中的通信方法。
第七方面,提供了一种计算机可读介质,所述计算机可读介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第一方面或第二方面及其各实现方式中的通信方法。
第八方面,提供了一种通信系统,该系统包括:至少一个第三方面中任一项所述的装置和第四方面中任一项所述的装置。
第九方面,提供了一种芯片系统,包括存储器和处理器,该存储器用于存储计算机 程序,该处理器用于从存储器中调用并运行该计算机程序,使得安装有该芯片系统的通信设备执行上述第一方面或第二方面及其各实现方式中的通信方法。
其中,该芯片系统可以包括用于发送信息或数据的输入电路或者接口,以及用于接收信息或数据的输出电路或者接口。
附图说明
图1是本申请实施例的系统架构图。
图2是本申请实施例的无线短距传输协议层的示意图。
图3是本申请实施例的基础广播帧结构的示意图。
图4是本申请实施例的广播消息的接收及后续通信处理流程的示意图。
图5是本申请实施例的广播信息处理的方法的一例。
图6是本申请实施例的包括指示信息的基础广播帧的帧头的示意图。
图7是本申请实施例的包括指示信息的有效载荷头的示意图。
图8是本申请实施例的广播信息处理的方法的又一例。
图9是本申请实施例的广播信息处理的方法的再一例。
图10是本申请实施例的广播信息处理的方法的另一例。
图11是本申请实施例的广播信息处理的通信装置的一例。
图12是本申请实施例的广播信息处理的通信装置的又一例。
具体实施方式
下面将结合附图,对本申请中的技术方案进行描述。
本申请实施例提供的通信方法可以应用于存在信号传输的场景中,该场景中信号在通信两端之间进行传输,发送信号的一端为信号发送端,接收信号的一端为信号接收端,信号发送端和信号接收端可以动态的变化。例如,在第一时刻,通信端A发送信号,作为信号发送端,在第二时刻,通信端A接收信号,作为信号接收端。且通信端可以同时为信号发送端和信号接收端,与不同的通信端进行通信。
图1是本申请实施例的系统架构。本申请提供的方法可以适用于无线通信场景,例如,短距无线通信场景、广域无线通信场景或者局域无线通信场景等等。在无线通信场景中,一定通信区域或范围内可以包括多个通信域。该通信域可以指一组具有通信关系的通信节点,以及通信节点之间的通信连接关系(即通信链路)组成的系统。一个通信域可以包括一个主通信节点(可以简称为主节点)和至少一个从通信节点(可以简称为从节点)。其中,主节点管理通信域的时频资源,并具有为通信域中的通信节点间的通信链路调度资源的功能。示例性的,图1示出了本申请实施例提供的一种无线通信场景的示意图。在该无线通信场景中,可以包括至少一个主节点和每个主节点对应的至少一个从节点。例如,如图1所示,在该无线通信场景中包括主节点1和主节点2。主节点1与从节点1和从节点2构成通信域1,主节点1与从节点1和从节点2进行通信。主节点2与从节点3和从节点4构成通信域2,主节点2与从节点3和从节点4进行通信。
一种示例的情况,当图1所示的无线通信场景为广域无线通信场景时,主节点1和主节点2可以是网络设备,从节点1~从节点4可以是终端设备。所述网络设备可以为具有 无线收发功能的设备或可设置于该网络设备的芯片,该网络设备例如可以为某一通信制式的无线网络中的无线接入网(RAN)设备,或称为基站,包括但不限于:下一代节点B(generation node B,gNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(baseband unit,BBU),无线保真(wireless fidelity,Wi-Fi)系统中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission and reception point,TRP或者transmission point,TP)等。
在一些部署中,RAN设备可以包括集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU)。此外,该RAN设备还可以包括射频单元(radio unit,RU)。CU实现RAN设备的部分功能,DU实现RAN设备的部分功能,比如,CU实现无线资源控制(radio resource control,RRC),分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能,DU实现无线链路控制(radio link control,RLC)、媒体接入控制(media access control,MAC)和物理(physical,PHY)层的功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令或PDCP层信令,也可以认为是由DU发送的,或者,由DU+RU发送的。可以理解的是,网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外,CU可以划分为RAN中的网络设备,也可以将CU划分为核心网(CN)中的网络设备,对此不作限定。
终端设备也可以称为用户设备(user equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智能穿戴设备(智能眼镜、智能手表、智能耳机等)、智慧家庭(smart home)中的无线终端等等,也可以是能够设置于以上设备的芯片或芯片模组(或芯片系统)等。本申请的实施例对应用场景不做限定。本申请实施例中将具有无线收发功能的终端设备及可设置于前述终端设备的芯片统称为终端设备。
另一种示例的情况,当图1所示的无线通信场景为局域无线通信场景时,主节点1和主节点2可以是接入点(access point,AP),从节点1~从节点4可以是站点(station)。
又一种示例的情况,当图1所示的无线通信场景为短距无线通信场景时,不同的短距无线通信场景主节点和从节点的示例不同。例如,短距无线通信场景为车内无线通信场景时,主节点1和主节点2可以是座舱域控制器(cockpit domain controller,CDC),从节点1~从节点4可以是车载音乐喇叭、车载氛围灯等。又例如,短距无线通信场景为智能穿戴类无线通信场景时,主节点1和主节点2可以是手机,从节点1~从节点4可以是耳机、手表等。又例如,短距无线通信场景为家居类无线通信场景时,主节点1和主节点2可以是家用无线网关,从节点1~从节点4可以是家用电器等。又例如,短距无线通信场 景为工业短距无线通信场景时,主节点1和主节点2可以是工业无线网关,从节点1~从节点4可以是无人搬运车(automatic guided vehicle,AGV)、机床、机器手等。
当然,上述列举的主节点和从节点的示例仅仅为举例,本申请对此不作限定。需要说明的是,当图1所示的无线通信场景为其他无线通信场景时,主节点和从节点还可以为其他可能,本申请此处不再一一列举。此外,主节点和从节点角色可以动态变化,例如主节点和从节点互换,或者主节点变为其它设备的从节点,从节点变成其它设备的主节点。
本申请实施例中节点也可以称为通信节点、设备(装置)或通信设备(装置)等。
本申请实施例的一种示例性的无线短距传输协议层如图2所示,本申请实施例涉及的方案中主要涉及数据链路层和物理层。物理层利用物理传输介质为数据链路层提供物理信道,以及在这些物理信道上收发数据,实现比特流传输。以物理传输介质为一定频率范围下的频带资源为例,则物理信道可以通过频点和带宽来定义。例如,无线短距通信使用的一种频段,其频率范围为2.400-2.4835吉赫兹(GHz),为了同时支持多个设备,将整个频带分为40份,每份的带宽为2兆赫兹(M Hz),相应地物理信道可以是频点分别是f=2402+k*2MHz,k=0,…,39,带宽为2MHz的40个物理信道。
数据链路层向上层协议,例如,网络与传输层,屏蔽物理层的信息。数据链路层用于实现主节点与从节点之间的连接通信,可以进行资源管理、访问控制、数据分段、级联、工作模式等功能,保障数据的可靠传递。在有些实现中,数据链路层也可以进一步划分为媒体接入层和链路控制层。
广播可以用于设备之间的发现、连接和公开数据的传递。设备希望被发现或接入时,可以发送可连接广播消息。其中,该广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)。图3是一种示例性的基础广播帧结构示意图。如图3所示,发送方设备数据链路层或媒体接入层等高层可以将从其上层获取到的业务数据单元(service data unit,SDU)添加有效载荷头(Payload header)得到协议数据单元(protocol data unit,PDU)。其中,有效载荷头可以包括数据帧类型,也可以包括高层控制信息,比如数据链路层或媒体接入层等高层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。物理层实体从数据链路层或媒体接入层等高层获取PDU,将PDU作为有效载荷(Payload),并在Payload前添加物理层帧头(Header)后形成数据帧在物理信道上发送,其中,物理层帧头(Header)还可以包括数据帧的编解码、新传旧传指示等物理层控制信息。
接收方设备从物理信道接收数据帧,数据帧可以包括物理层帧头和有效载荷。通过有效载荷头,可以获取到数据帧类型,例如,数据帧类型可以包括基础广播帧,扩展广播帧等,还可以获取到有效载荷的长度等信息。其中,有效载荷为物理层的上层(媒体接入层或数据链路层)的PDU。物理层实体去掉物理层帧头后,将有效载荷递交至数据链路层实体或媒体接入层实体处理。其中,有效载荷可以包括有效载荷头和SDU。有效载荷头可以包括一个或多个字段,数据链路层或媒体接入层实体可以根据有效载荷头获取到SDU的相关信息,将SDU递交至其上层处理。其中,基础广播帧的有效载荷头可以包括扩展帧指针AuxPtr字段,用于指示获取扩展帧的资源,例如可以包括获取扩展广播帧的频点、时钟和物理层(Physical Layer,PHY)信息,其中,频点也可以包括信道号或者频点号等,时钟可以包括时间间隔、帧号、时隙号等中的一项或多项。
广播消息的接收及后续通信处理流程如图4所示,包括以下步骤:广播发送方周期性 的发送基础广播帧,接收方接收基础广播帧,在基础广播帧的有效荷载头(Payload Header)中的扩展包指针AuxPtr消息中获取扩展广播帧的频点、时钟和物理层(Physical Layer,PHY)信息。接收方根据上述信息确定扩展广播帧接收的起始时刻,按照起始时刻接收扩展广播帧,广播接收方解析扩展广播帧,得到其中的req_offset和latency信息,确定扫描请求SCAN_REQ或连接请求CONN_REQ窗的起始位置,发起扫描请求或连接请求,进一步的,广播接收方可以接收扫描响应帧SCAN_RSP或广播接收方可以与广播发送方建立连接。具体的,广播接收方需要根据扩展广播帧中的Latency信息确定扫描响应窗的位置。在本申请实施例中,第一设备可以为广播接收方的一例,第二设备可以为广播发送方的一例。
本申请实施例的方案可以为短距通信两节点间的通信,低功耗支持从节点或主节点广播,这里假设从节点为广播发送方,主节点为广播接收方,主节点根据从节点发送的广播信息确定是否是自己选择的设备,进一步的,主节点可以发起连接请求或发起扫描请求,进一步的,主节点可以与从节点建立连接或主节点接收从节点发送的扫描响应帧。进入连接态后,从节点在没有资源的情况下,可以向主节点发起资源请求,由主节点进行传输资源的分配。在本申请实施例中,第一设备可以为主节点的一例,第二设备可以为从节点的一例。资源分配也可以采用静态或半静态方式,在本申请实施例中,具体的资源配置方式不做限定。
广播消息为广播发送方即第二设备生成并发送的,生成广播消息的模块可以是在第二设备的高层,也可以是在第二设备的底层,广播消息周期性的通过广播信道或数据业务信道发送。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。基础广播帧可以为基础广播物理信道PDU,扩展广播帧也可以为扩展广播物理信道PDU。
图5是本申请实施例的处理广播信息的通信方法的一例。如图5所示,该方法500包括:
S510,第一设备接收第二设备发送的基础广播帧。
应理解,该第一设备可以为广播接收方的一例,该第二设备可以为广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,第一设备与第二设备建立连接或第一设备接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收第二设备发送的基础广播帧。
S520,第一设备解析基础广播帧,获取指示信息。
具体的,该指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该指示信息在物理层帧头中的位置如图6所示,该指示信息可以为在基础广播帧的帧头中增加的一个或多个比特位,应理解,该指示信息也可以为基础广播帧的帧头中本身存在的一个或多个比特位,可选的,该本身存在的比特位为暂时不用的一个或多个比特位。第一 设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该指示信息可以位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该指示信息在基础广播帧的物理层的有效载荷头中的位置如图7所示。该指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或多个比特位,应理解,该指示信息也可以为基础广播帧的物理层的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
第一设备的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取指示信息,或,第一设备的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取指示信息。
具体的,该指示信息包括以下一项或多项:
第一指示信息,用于指示扩展广播帧的内容是否发生改变,例如,第一指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
第二指示信息,用于指示广播的类型,该广播的类型可以包括:可扫描、可连接、不可扫描、不可连接。作为示例而非限定,该第二指示信息表示的广播的类型可以通过第二指示信息的比特位表示,例如,可以用二比特来表示广播的类型,00可以表示可扫描和可连接,01可以表示可扫描和不可连接,10表示不可扫描和可连接,11表示不可扫描和不可连接,本申请实施例对该表示方法不做限定。
第三指示信息,用于指示扫描响应帧的内容是否发生改变,例如,第三指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
S530,第一设备根据指示信息确定是否接收扩展广播帧。
在某些实施例中,该指示信息可以包括第一指示信息、第二指示信息、第三指示信息中的任意一种。
在一种可能的实现方式中,指示信息可以包括第一指示信息。若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧;若第一指示信息指示扩展广播帧的内容未发生改变,第一设备可以不接收扩展广播帧。需要说明的是,第一设备在本次广播的前一次接收过与本次扩展广播帧的内容相同的扩展广播帧,第一设备可以缓存该扩展广播帧或第一设备可以从该扩展广播帧中获取的用于扫描或连接相关的信息,若本次扩展广播帧的内容未发生改变,则第一设备可以不接收本次扩展广播帧,继续使用缓存的扩展广播帧或缓存的扩展广播帧中的用于扫描或连接相关的信息。可以理解的是,第一设备不接收扩展广播帧,可以是第一设备不接收扩展广播帧,也可以是第一设备接收扩展广播帧,但不解析扩展广播帧。相应地,可以减少第一设备接收扩展广播帧的次数,或者,减少第一设备解析扩展广播帧的次数,从而节省了功率消耗。可选的,该第一指示信息中可以指示本次扩展广播帧的内容与前一次的内容相比未发生改变。进一步,第一设备可以根据本次接收的扩展广播帧或之前缓存的扩展广播帧或缓存的扩展广播帧中的用于扫描或连接的相关信息,发起扫描请求或连接请求,进一步的,接收扫描响应帧或建立连接。需要说明的是,第一设备可以根据扩展广播帧的内容确定扫描请求或连接请求的窗的位置,具体的,第一设备可以根据扩展广播帧中的req-offset信息和latency信息确定扫描请求或连接 请求窗的位置。
在一种可能的实现方式中,指示信息可以包括第二指示信息。第二指示信息指示广播的类型,若广播的类型为第一设备的目标类型,第一设备接收扩展广播帧,进一步的,根据扩展广播帧的内容发起扫描请求或连接请求,进一步的,接收扫描响应帧或建立连接。若广播的类型不是第一设备的目标类型,第一设备可以不接收扩展广播帧,相应的,不会发起扫描请求或连接请求,不接收扫描响应帧或不建立连接。
在一种可能的实现方式中,指示信息可以包括第三指示信息,该第三指示信息指示扫描响应帧是否发生改变。若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不需要接收扫描响应帧。对应的,也不需要接收扩展广播帧,进一步的,不发起扫描请求,进一步的,不接收扫描响应帧。若第三指示信息指示扫描响应帧的内容发生改变,第一设备接收扩展广播帧,进一步的,根据扩展广播帧的内容发起扫描请求,进一步的,接收扫描响应帧。
在某些实施例中,该第三指示信息也可以包括在扩展广播帧的物理层帧头或有效载荷头中,第一设备接收基础广播帧,在物理层解析基础广播帧,根据基础广播帧的内容接收扩展广播帧,进而在物理层解析扩展广播帧中的第三指示信息,若扩展广播帧中包括的第三指示信息指示扫描响应帧的内容发生改变,第一设备根据扩展广播帧的内容发起扫描请求,进一步的,第一设备接收扫描响应帧。若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不发起扫描请求,或第一设备根据扩展广播帧的内容发起扫描请求,不接收扫描响应帧。
在某些实施例中,该指示信息可以包括第一指示信息、第二指示信息、第三指示信息中的任意两种。应理解,在某些实施例中,该第一指示信息、第二指示信息和第三指示信息之间可以存在优先级关系。本申请实施例中,该优先级关系可以为,第二指示信息高于第三指示信息,第三指示信息高于第一指示信息。本申请实施例以上述优先级为例展开说明。应理解,该指示信息可以有其他顺序的优先级,任何优先级的组合都适用于本申请实施例,本申请实施例对此不做限定。应理解,该指示信息也可以没有优先级限定,第一设备根据需要进行判断是否接收后续的广播消息帧,或是否发起扫描等,本申请实施例对此不做限定。
在一种可能的实现方式中,该指示信息可以包括第一指示信息和第二指示信息。若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第一指示信息指示扩展广播帧的内容是否发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求或连接请求,进一步的,第一设备不接收扫描响应帧或不建立连接。若第一设备根据第二指示信息确定广播的类型为目标类型,第一设备根据第一指示信息进一步确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧。进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容信息,发起扫描请求或连接请求,进一步的,第一设备接收第二设备发送的扫描响应帧或第一设备与第二设备建立连接。
在一种可能的实现方式中,该指示信息可以包括第一指示信息和第三指示信息。若第一设备根据第三指示信息确定扫描响应帧的内容不发生改变,不论第一指示信息指示扩展 广播帧的内容是否发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。若第一设备根据第三指示信息确定扫描响应帧的内容发生改变,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容,发起扫描请求,进一步的,第一设备接收第二设备发送的扫描响应帧。
在一种可能的实现方式中,该指示信息可以包括第二指示信息和第三指示信息。若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第三指示信息指示扫描响应帧的内容是否发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。若第一设备根据第二指示信息确定广播的类型为目标类型,第一设备根据第三指示信息确定是否接收扩展广播帧,若第三指示信息指示扫描响应帧的内容发生改变,第一设备接收扩展广播帧,进一步,根据扩展广播帧的内容发起扫描请求,进一步的,接收扫描响应帧,若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不接收扩展广播帧,进一步的,第一设备不会发起扫描请求,进一步的,第一设备不接收扫描响应帧。
在某些实施例中,指示信息可以包括两种,第三指示信息包括在扩展广播帧中,第一指示信息包括在基础广播帧中,换句话说,接收扩展广播帧才能解析第三指示信息,若不接收扩展广播帧,则相当于没有第三指示信息。第一设备根据第一指示信息确认扩展广播帧的内容发生改变,接收扩展广播帧,在扩展广播帧中接收第三指示信息,若第三指示信息指示扫描响应帧发生改变,第一设备发起扫描请求,进一步的,接收扫描响应帧,若第三指示信息指示扫描响应帧未发生改变,第一设备发起扫描请求,不接收扫描响应帧,或第一设备不发起扫描请求。若第一设备根据第一指示信息确认扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步的,第一设备根据缓存的扩展广播帧的内容发起扫描请求,进一步的,第一设备接收扫描响应帧。
在某些实施例中,指示信息包括两种,第三指示信息包括在扩展广播帧中,第二指示信息包括在基础广播帧中。若第二指示信息指示的广播类型为第一设备的目标类型,第一设备接收扩展广播帧,在扩展广播帧中接收第三指示信息,若第三指示信息指示扫描响应帧发生改变,第一设备发起扫描请求,进一步的,第一设备接收扫描响应帧,若第三指示信息指示扫描响应帧未发生改变,第一设备发起扫描请求,不接收扫描响应帧,或第一设备不发起扫描请求。若第二指示信息指示的广播类型不是第一设备的目标类型,第一设备不接收扩展广播帧,进一步的,第一设备不发起扫描请求,进一步的,第一设备不接收扫描响应帧。
在某些实施例中,指示信息可以包括第一指示信息、第二指示信息和第三指示信息。该第一指示信息、第二指示信息和第三指示信息之间存在优先级关系,本申请实施例中,该优先级关系可以为,第二指示信息高于第三指示信息,第三指示信息高于第一指示信息。本申请实施例以上述优先级为例展开说明。应理解,该指示信息可以有其他顺序的优先级,任何优先级的组合都适用于本申请实施例,本申请实施例对此不做限定。应理解,该指示信息也可以没有优先级,第一设备根据需要进行判断是否接收后续的广播消息帧,或是否 发起扫描等,本申请实施例对此不做限定。
具体的,该指示信息可以包括在基础广播帧中,若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第一指示信息和第二指示信息指示的内容,第一设备不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若第一设备根据第二指示信息确定广播的类型为目标类型,进一步的,第一设备根据第三指示信息确定是否接收扩展广播帧,若第三指示信息指示扫描响应帧不发生改变,第一设备不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若第三指示信息指示扫描响应帧发生改变,进一步的,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,进一步,第一设备根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容,发起扫描请求,进一步的,接收扫描响应帧。
在某些实施例中,第一指示信息和第二指示信息可以包括在基础广播帧中,第三指示信息可以包括在扩展广播帧中,第一设备接收基础广播帧,根据第二指示信息确定广播类型不是目标类型,则不论第一指示信息和第三指示信息指示的内容,第一设备不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若第一设备根据第二指示信息确定广播的类型为目标类型,进一步的,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,第一设备不接收扩展广播帧,相应的,第一设备无法接收第三指示信息,第一设备根据第一设备根据之前缓存的扩展广播帧的内容,发起扫描请求,进一步的,接收扫描响应帧。若第一指示信息指示扩展广播帧的内容发生改变,第一设备接收扩展广播帧,进一步的,接收扩展广播帧中的第三指示信息,若第三指示信息指示扫描响应帧的内容发生改变,第一设备发起扫描请求,进一步的,接收扫描响应,若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不发起扫描请求或发起扫描请求不接收扫描响应帧。
本申请实施例提供的处理广播信息的方法,通过在第二设备向第一设备发送的基础广播帧中添加指示信息,使得第一设备根据指示信息确定是否接收扩展广播帧或扫描响应帧,提供了一种灵活的接收方法,使得第一设备根据实际情况确定是否接收后续的广播内容。进一步的,在不接收扩展广播帧或扫描响应帧的情况下,节省了第一设备在处理广播信息过程中的功率消耗。
图8是本申请实施例的处理广播信息的通信方法的一例。如图8所示,该方法800包括:
S810,第一设备接收第二设备发送的基础广播帧。
应理解,该第一设备为广播接收方的一例,该第二设备为广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,第一设备与第二设备建立连接或第一设备接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收第二设备发送的基础广播帧。
S820,第一设备解析基础广播帧,获取第一指示信息。
具体的,该第一指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第一指示信息在物理层帧头中的位置如图6所示,该指示信息可以为在基础广播帧的帧头中增加的一个或多个比特位,应理解,该第一指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第一指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第一指示信息在基础广播帧的物理层的有效载荷头中的位置如图7所示。该第一指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或多个比特位,应理解,该第一指示信息也可以为基础广播帧的物理层的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
第一设备的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第一指示信息,或,第一设备的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取第一指示信息。
具体的,该第一指示信息用于指示扩展广播帧的内容是否发生改变,例如,第一指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
在某些实施例中,该第一指示信息指示扩展广播帧的内容发生改变。可选的,该第一指示信息可以指示与之前一次广播相比扩展广播帧的内容发生改变。
在某些实施例中,该第一指示信息指示扩展广播帧的内容未发生改变。可选的,该第一指示信息可以指示与之前一次广播相比扩展广播帧的内容未发生改变。
S830,第一设备根据第一指示信息确定是否接收扩展广播帧。
具体的,第一设备接收基础广播帧,进一步的,通过解析获取基础广播帧的物理层帧头或基础广播帧的物理层的有效荷载头中的第一指示信息。
在某些实施例中,该第一指示信息指示扩展广播帧的内容发生改变,具体的,该扩展广播帧的内容发生改变的含义与步骤S820类似。该第一设备根据第一指示信息接收扩展广播帧。
在某些实施例中,该第一指示信息指示扩展广播帧的内容未发生改变,具体的,该扩展广播帧的内容未发生改变的含义与步骤S820类似。对应的,该扩展广播帧的内容未发生改变,该第一设备中缓存有该扩展广播帧的内容,在一种可能的实现方式中,第一设备在之前一次的广播中,接收过与该扩展广播帧的内容一致的扩展广播帧,因此,该第一设备中缓存有该扩展广播帧的内容。该第一设备根据第一指示信息不接收扩展广播帧,能够节省第一设备的功率消耗。
S840,第一设备发起扫描请求或连接请求。
具体的,第一设备根据本次接收的或之前缓存的扩展广播帧的内容确定扫描请求或连接请求窗的起始位置,在该位置处向第二设备发起扫描请求或连接请求。
需要说明的是,该广播的类型可以分为:可扫描,可连接,不可扫描,不可连接,在一种可能的实现方式中,该广播的类型至少存在以下几种可能:可连接和可扫描,可连接和不可扫描,不可连接和可扫描,不可连接和不可扫描。
S850,第一设备接收扫描响应或与第二设备建立连接。
需要说明的是,在步骤S840中,若第一设备发起的是连接请求,第二设备和第一设备建立连接。第一设备发起的是扫描请求,第二设备向第一设备发送扫描响应帧,该扫描响应帧中存在更多信息。
在某些实施例中,该第一设备可能接收其他指示信息,第一设备根据第一指示信息和其他指示信息确定后续广播消息帧的接收情况,该广播消息帧可以包括扩展广播帧和扫描响应帧等,详细描述可参考方法500。
本申请实施例的提供的方法,第二设备通过在基础广播帧的帧头或有效荷载中增加第一指示信息,使得第一设备能够知道扩展广播帧的内容与自身之前接收到的内容是否有变化,从而确定是否需要接收扩展广播帧,提供了一种灵活的处理广播信息的方法,当内容没有变化时,第一设备不需要接收扩展广播帧,从而减少了第一设备的功耗。
图9是本申请实施例的广播信息处理的方法的又一例。如图9所示,该方法900包括:
S910,第一设备接收第二设备发送的基础广播帧。
应理解,该第一设备是广播接收方的一例,该第二设备是广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,第一设备与第二设备建立连接或第一设备接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收第二设备发送的基础广播帧。
S920,第一设备解析基础广播帧,获取第二指示信息。
具体的,该第二指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特位,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第二指示信息在物理层帧头中的位置如图6所示,该第二指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该第二指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第二指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第二指示信息在基础广播帧的物理层的有效载荷头中的位置如图7所示。该第二指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或多个比特位,应理解,该第二指示信息也可以为基础广播帧的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
第一设备的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第二指示信息,或,第一设备的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头, 获取第二指示信息。
该第二指示信息用于指示广播的类型,该类型可以包括:可连接,不可连接,可扫描,不可扫描。可选的,该类型可以用两位比特位表示,在一种示例中,该比特位00可以表示可扫描和可连接,01可以表示可扫描和不可连接,10表示不可扫描和可连接,11表示不可扫描和不可连接,本申请实施例对该表示方法不做限定。
S930,第一设备根据第二指示信息确定是否接收扩展广播帧。
具体的,第一设备接收基础广播帧,进一步的,解析基础广播帧的物理层帧头或基础广播帧的物理层的有效荷载头中的第二指示信息。
第一设备根据第二指示信息确定广播的类型是否为目标类型,若广播的类型为第一设备的目标类型,第一设备接收扩展广播帧。若广播的类型不是第一设备的目标类型,可选的,第一设备不接收扩展广播帧。可选的,第一设备可以接收扩展广播帧,但不进行步骤S940和步骤S950。
S940,第一设备发起扫描请求或连接请求。
需要说明的是,该步骤是可选的,第一设备确定广播的类型为目标类型,接收扩展广播帧,向第二设备发起扫描请求或连接请求。
S950,第一设备接收扫描响应或与第二设备建立连接。
需要说明的是,该步骤是可选的,存在S940才存在该步骤,在步骤S940中,若第一设备发起的是连接请求,第二设备和第一设备建立连接。第一设备发起的是扫描请求,第二设备向第一设备发送扫描响应帧,该扫描响应帧中存在更多信息。
在某些实施例中,该第一设备可能接收其他指示信息,第一设备根据第二指示信息和其他指示信息确定后续广播消息帧的接收情况,详细描述可参考方法500。
本申请实施例提供的方法,通过在基础广播帧的帧头或有效荷载中添加第二指示信息,可以使第一设备提前知道广播的类型,从而确定是否为目标类型,从而确定是否需要接收扩展广播帧及进行后续的通讯流程,提供了一种灵活的处理广播信息的方法,若不接收扩展广播帧,能够减少第一设备的功耗。
图10是本申请实施例的处理广播信息的方法的一例。如图10所示,该方法1000包括:
S1010,第一设备接收第二设备发送的基础广播帧。
应理解,该第一设备为广播接收方的一例,该第二设备为广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,第一设备与第二设备建立连接或第一设备接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收第二设备发送的基础广播帧。
S1020,第一设备解析基础广播帧,获取第三指示信息。
具体的,该第三指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特位,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第三指示信息在物理层帧头中的位置如图6所示,该第三指示信息可以为在基础 广播帧的帧头中增加的比特位,应理解,该第三指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第三指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第三指示信息在基础广播帧的有效载荷头中的位置如图7所示。该第三指示信息可以为在基础广播帧的有效载荷头中增加的比特位,应理解,该第三指示信息也可以为基础广播帧的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
第一设备的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第三指示信息,或,第一设备的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取第三指示信息。
具体的,该第三指示信息用于指示扩展广播帧的内容是否发生改变,例如,第三指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
S1030,第一设备根据第三指示信息确定是否接收扩展广播帧。
需要说明的是,若第一设备根据第三指示信息确定扫描响应帧的内容未发生改变,第一设备不需要接收扩展广播帧,更不需要发起后续的流程。若第一设备根据第三指示信息确定扫描响应帧的内容发生改变,第一设备接收扩展广播帧。
S1040,第一设备发起扫描请求。
需要说明的是,该步骤是可选的。若第一设备根据第三指示信息确定扫描响应帧的内容未发生改变,第一设备不进行后续流程,第一设备不接收扩展广播帧,不发起扫描请求。若第一设备根据第三指示信息确定扫描响应帧的内容发生改变,第一设备确定需要接收扫描响应帧,对应的,第一设备需要接收扩展广播帧,根据扩展广播帧的内容和基础广播帧的内容发起扫描请求。
S1050,第一设备接收扫描响应帧。
需要说明的是,该步骤建立在步骤S1040之上,第一设备发起扫描请求后,接收扫描响应帧。
在某些实施例中,该第三指示信息包括在扩展广播帧的帧头或有效荷载头中,该实施例中,第一设备接收基础广播帧,根据基础广播帧的内容接收扩展广播帧,解析扩展广播帧获取第三指示信息,若第三指示信息指示扫描响应帧的内容发生改变,第一设备发起扫描请求,从第二设备接收扫描响应帧。若第三指示信息指示扫描响应帧的内容未发生改变,第一设备不发起扫描请求,或,第一设备发起扫描请求但不接收扫描响应帧。
在某些实施例中,该第一设备可能接收其他指示信息,第一设备根据第三指示信息和其他指示信息确定后续广播消息帧的接收情况,详细描述可参考方法500。
本申请实施例提供的方法,通过在基础广播帧或扩展广播帧的帧头或有效荷载中添加第三指示信息,可以使第一设备确定扫描响应帧的内容是否发生改变,并基于该第三指示信息确定是否接收后续广播消息,提供了一种灵活的处理广播信息的方法,若不接收扩展广播帧或扫描响应帧,能够减少第一设备的功耗。
图11是本申请实施例的通信装置的一例,该通信装置1100中的各个单元可以通过软件来实现。
在一些实施例中,该通信装置1100可以是上文方法实施例500中的第一设备,也可以是用于实现上文方法实施例中第一设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法500中的第一设备对应的步骤。该通信装置1100包括:
收发单元1110,用于接收第二设备发送的基础广播帧。
处理单元1120,用于解析基础广播帧,获取指示信息。
应理解,该通信装置可以为广播接收方的一例,该第二设备可以为广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,收发单元1110可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,处理单元1120与第二设备建立连接或收发单元1110接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。收发单元1110可以周期性的接收第二设备发送的基础广播帧。
具体的,该指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该指示信息在物理层帧头中的位置如图6所示,应理解,该指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。处理单元1120在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该指示信息在基础广播帧的有效载荷头中的位置如图7所示。该指示信息可以为在基础广播帧的有效载荷头中增加的比特位,应理解,该指示信息也可以为基础广播帧的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
该处理单元1120的物理层处理实体(或模块)解析基础广播帧,获取指示信息,或,该处理单元1120的高层处理实体(或模块)解析基础广播帧,获取指示信息。
具体的,该指示信息包括以下至少一项:
第一指示信息,用于指示扩展广播帧的内容是否发生改变,例如,第一指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
第二指示信息,用于指示广播的类型,该广播的类型可以包括:可扫描、可连接、不可扫描、不可连接。作为示例而非限定,该第二指示信息表示的广播的类型可以通过第二指示信息的比特位表示,例如,可以用二比特来表示广播的类型,00可以表示可扫描和可连接,01可以表示可扫描和不可连接,10表示不可扫描和可连接,11表示不可扫描和不可连接,本申请实施例对该表示方法不做限定。
第三指示信息,用于指示扫描响应帧的内容是否发生改变,例如,第三指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
该处理单元1120还用于根据指示信息确定是否接收扩展广播帧。
在某些实施例中,该指示信息可以包括第一指示信息、第二指示信息、第三指示信息 中的任意一种。
在一种可能的实现方式中,指示信息可以包括第一指示信息。若第一指示信息指示扩展广播帧的内容发生改变,收发单元1110接收扩展广播帧;若第一指示信息指示扩展广播帧的内容未发生改变,收发单元1110不接收扩展广播帧。需要说明的是,收发单元1110在本次广播的前一次接收过与本次扩展广播帧的内容相同的扩展广播帧,处理单元1120缓存了该扩展广播帧的内容,因此,本次扩展广播帧的内容未发生改变,则收发单元1110可以不接收本次扩展广播帧,利用缓存的扩展广播帧的内容进行后续流程。从而节省了功率消耗。可选的,该第一指示信息中可以指示本次扩展广播帧的内容与前一次扩展广播帧的内容相比未发生改变。进一步,处理单元1120根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容,结合基础广播帧的内容发起扫描请求或连接请求,进一步的,接收扫描响应帧或建立连接。需要说明的是,处理单元1120根据扩展广播帧的内容和基础广播真的内容确定扫描请求或连接请求的窗的位置,具体的,根据扩展广播帧的req-offset信息和latency信息及基础广播帧中的信息确定窗的位置。
在一种可能的实现方式中,指示信息可以包括第二指示信息,第二指示信息指示广播的类型,若处理单元1120确定广播的类型是目标类型,收发单元1110接收扩展广播帧,进一步的,根据扩展广播帧的内容内容发起扫描请求或连接请求,进一步的,接收扫描响应帧或建立连接。若处理单元1120确定广播的类型不是目标类型,收发单元1110不接收扩展广播帧,相应的,不会发起扫描请求或连接请求,不接收扫描响应帧或不建立连接。
在一种可能的实现方式中,指示信息包括第三指示信息,该第三指示信息指示扫描响应帧是否发生改变。若第三指示信息指示扫描响应帧的内容未发生改变,收发单元1110不需要接收扫描响应帧。对应的,也不需要接收扩展广播帧,进一步的,不发起扫描请求,进一步的,不接收扫描响应帧。若第三指示信息指示扫描响应帧的内容发生改变,收发单元1110接收扩展广播帧,进一步的,根据扩展广播帧的内容发起扫描请求,进一步的,接收扫描响应帧。
在某些实施例中,该第三指示信息可以包括在扩展广播帧的物理层帧头或有效载荷头中,收发单元1110接收基础广播帧,根据通信流程,根据基础广播帧的内容接收扩展广播帧,进而在物理层解析扩展广播帧中的第三指示信息,若扩展广播帧中包括的第三指示信息指示扫描响应帧的内容发生改变,收发单元1110根据扩展广播帧的内容发起扫描请求,进一步的,收发单元1110接收扫描响应帧。若第三指示信息指示扫描响应帧的内容未发生改变,处理单元1120不发起扫描请求,或处理单元1120根据基础广播帧的内容和扩展广播帧的内容发起扫描请求,不接收扫描响应帧。
在某些实施例中,该指示信息可以包括第一指示信息、第二指示信息、第三指示信息中的任意两种。该第一指示信息、第二指示信息和第三指示信息之间存在优先级关系,本申请实施例中,该优先级关系可以为,第二指示信息高于第三指示信息高于第一指示信息。本申请实施例以上述优先级为例展开说明。应理解,该指示信息可以有其他顺序的优先级,任何优先级的组合都适用于本申请实施例,本申请实施例对此不做限定。
在一种可能的实现方式中,该指示信息可以包括第一指示信息和第二指示信息。若处理单元1120根据第二指示信息确定广播的类型不是目标类型,不论第一指示信息指示扩展广播帧的内容是否发生改变,收发单元1110不接收扩展广播帧,进一步的,处理单元 1120不发起扫描请求或连接请求,进一步的,收发单元1110不接收扫描响应帧或不建立连接。若处理单元1120根据第二指示信息确定广播的类型为目标类型,处理单元1120根据第一指示信息进一步确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,收发单元1110接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,收发单元1110不接收扩展广播帧。进一步,处理单元1120根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容,发起扫描请求或连接请求,进一步的,接收扫描响应帧或建立连接。
在一种可能的实现方式中,该指示信息可以包括第一指示信息和第三指示信息。若处理单元1120根据第三指示信息确定扫描响应帧的内容不发生改变,不论第一指示信息指示扩展广播帧的内容是否发生改变,收发单元1110不接收扩展广播帧,进一步的,处理单元1120不发起扫描请求,进一步的,收发单元1110不接收扫描响应帧。若处理单元1120根据第三指示信息确定扫描响应帧的内容发生改变,处理单元1120根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,收发单元1110接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,收发单元1110不接收扩展广播帧,进一步,处理单元1120根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容,结合基础广播帧的内容发起扫描请求,进一步的,接收扫描响应帧。
在一种可能的实现方式中,该指示信息可以包括第二指示信息和第三指示信息。若第一设备根据第二指示信息确定广播的类型不是目标类型,不论第三指示信息指示扫描响应帧的内容是否发生改变,收发单元1110不接收扩展广播帧,进一步的,处理单元1120不发起扫描请求,进一步的,收发单元1110不接收扫描响应帧。若处理单元1120根据第二指示信息确定广播的类型为目标类型,处理单元1120根据第三指示信息确定是否接收扩展广播帧,若第三指示信息指示扫描响应帧的内容发生改变,收发单元1110接收扩展广播帧,进一步,根据扩展广播帧的内容发起扫描请求,进一步的,接收扫描响应帧,若第三指示信息指示扫描响应帧的内容未发生改变,收发单元1110不接收扩展广播帧,进一步的,不会发起扫描请求,进一步的,不接收扫描响应帧。
在某些实施例中,指示信息可以包括两种,第三指示信息可以包括在扩展广播帧中,第一指示信息包括在基础广播帧中,换句话说,接收扩展广播帧才能解析第三指示信息,若不接收扩展广播帧,则相当于没有第三指示信息。处理单元1120根据第一指示信息确认扩展广播帧的内容发生改变,接收扩展广播帧,在扩展广播帧中接收第三指示信息,若第三指示信息指示扫描响应帧发生改变,处理单元1120发起扫描请求,进一步的,接收扫描响应帧,若第三指示信息指示扫描响应帧未发生改变,处理单元1120发起扫描请求,不接收扫描响应帧,或处理单元1120不发起扫描请求。若处理单元1120根据第一指示信息确认扩展广播帧的内容未发生改变,不接收扩展广播帧,进一步的,根据基础广播帧的内容缓存的扩展广播帧的内容发起扫描请求,进一步的,接收扫描响应。
在某些实施例中,指示信息可以包括两种,第三指示信息可以包括在扩展广播帧中,第二指示信息包括在基础广播帧中。若第二指示信息指示的广播类型为处理单元1120的目标类型,收发单元1110接收扩展广播帧,在扩展广播帧中接收第三指示信息,若第三指示信息指示扫描响应帧发生改变,处理单元1120发起扫描请求,进一步的,接收扫描响应帧,若第三指示信息指示扫描响应帧未发生改变,处理单元1120发起扫描请求,不 接收扫描响应帧,或处理单元1120不发起扫描请求。若第二指示信息指示的广播类型不是处理单元1120的目标类型,收发单元1110不接收扩展广播帧,进一步的,不发起扫描请求,进一步的,不接收扫描响应帧。
在某些实施例中,指示信息可以包括第一指示信息、第二指示信息和第三指示信息。该第一指示信息、第二指示信息和第三指示信息之间存在优先级关系,本申请实施例中,该优先级关系可以为,第二指示信息高于第三指示信息高于第一指示信息。本申请实施例以上述优先级为例展开说明。应理解,该指示信息可以有其他顺序的优先级,任何优先级的组合都适用于本申请实施例,本申请实施例对此不做限定。
具体的,该三种指示信息可以包括在基础广播帧中,若处理单元1120根据第二指示信息确定广播的类型不是目标类型,不论第一指示信息和第二指示信息指示的内容,收发单元1110不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若处理单1120根据第二指示信息确定广播的类型为目标类型,进一步的,处理单元1120根据第三指示信息确定是否接收扩展广播帧,若第三指示信息指示扫描响应帧不发生改变,收发单元1110不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若第三指示信息指示扫描响应帧发生改变,进一步的,处理单元1120根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容发生改变,收发单元1110接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,收发单元1110不接收扩展广播帧,进一步,处理单元1020根据本次接收的扩展广播帧或之前缓存的扩展广播帧的内容,结合基础广播帧的内容发起扫描请求,进一步的,接收扫描响应帧。
在某些实施例中,第一指示信息和第二指示信息可以包括在基础广播帧中,第三指示信息包括在扩展广播帧中,收发单元1110接收基础广播帧,根据第二指示信息确定广播类型不是目标类型,则不论第一指示信息和第三指示信息指示的内容,收发单元1110不接收扩展广播帧,进一步,不发起扫描请求,进一步,不接收扫描响应。若处理单元1120根据第二指示信息确定广播的类型为目标类型,进一步的,第一设备根据第一指示信息确定是否接收扩展广播帧,若第一指示信息指示扩展广播帧的内容未发生改变,收发单元1110不接收扩展广播帧,相应的,收发单元1110无法接收第三指示信息,处理单元1120根据第一设备根据之前缓存的扩展广播帧的内容,结合基础广播帧的内容发起扫描请求,进一步的,接收扫描响应帧。若第一指示信息指示扩展广播帧的内容发生改变,收发单元1110接收扩展广播帧,进一步的,接收扩展广播帧中的第三指示信息,若第三指示信息指示扫描响应帧的内容发生改变,处理单元1120发起扫描请求,进一步的,接收扫描响应,若第三指示信息指示扫描响应帧的内容未发生改变,处理单元1120不发起扫描请求或发起扫描请求不接收扫描响应帧。
在一些实施例中,该通信装置1000可以是上文方法实施例500中的第二设备,也可以是用于实现上文方法实施例中第二设备的功能的芯片。应理解,该通信装置1000可以对应于本申请实施例的方法500中的第二设备对应的步骤。该通信装置1000包括:
收发单元1110,用于向第一设备发送基础广播帧。
处理单元1120,用于确定指示信息。
通信装置1100期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现通信装置1100,发起连接请求或发起扫描请求,进而,第一设备与处 理单元1120建立连接或第一设备接收收发单元1110发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收收发单元1110发送的基础广播帧。
具体的,该指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该指示信息在物理层帧头中的位置如图6所示,该指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该指示信息位于基础广播帧的有效载荷头中,包括一个或多个比特,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该指示信息在基础广播帧的有效载荷头中的位置如图7所示。该指示信息可以为在基础广播帧的有效载荷头中增加的比特位,应理解,该指示信息也可以为基础广播帧的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
第一设备的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取指示信息,或,第一设备的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取指示信息。
具体的,该指示信息包括以下至少一项:
第一指示信息,用于指示扩展广播帧的内容是否发生改变,例如,第一指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
第二指示信息,用于指示广播的类型,该广播的类型可以包括:可扫描、可连接、不可扫描、不可连接。作为示例而非限定,该第二指示信息表示的广播的类型可以通过第二指示信息的比特位表示,例如,可以用二比特来表示广播的类型,00可以表示可扫描和可连接,01可以表示可扫描和不可连接,10表示不可扫描和可连接,11表示不可扫描和不可连接,本申请实施例对该表示方法不做限定。
第三指示信息,用于指示扫描响应帧的内容是否发生改变,例如,第三指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
在一些实施例中,该通信装置1100可以是上文方法实施例800中的第一设备,也可以是用于实现上文方法实施例中第一设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法800中的第一设备对应的步骤。该通信装置1100包括:
收发单元1110,用于接收第二设备发送的基础广播帧。
处理单元1120,用于在物理层解析基础广播帧,获取第一指示信息。
应理解,该通信装置为广播接收方的一例,该第二设备为广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,第一设备与第二设备建立连接或第一设备接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次 重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收第二设备发送的基础广播帧。
具体的,该第一指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第一指示信息在物理层帧头中的位置如图6所示,该第一指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该第一指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。处理单元1120在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第一指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第一指示信息在基础广播帧的物理层的有效载荷头中的位置如图7所示。该第一指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或者多个比特位,应理解,该第一指示信息也可以为基础广播帧的物理层的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
处理单元1120的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第一指示信息,或,处理单元1120的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取第一指示信息。
具体的,该第一指示信息用于指示扩展广播帧的内容是否发生改变,例如,第一指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
在某些实施例中,该第一指示信息指示扩展广播帧的内容发生改变。可选的,该第一指示信息可以指示与之前一次广播相比扩展广播帧的内容发生改变。
在某些实施例中,该第一指示信息指示扩展广播帧的内容未发生改变。可选的,该第一指示信息可以指示与之前一次广播相比扩展广播帧的内容未发生改变。
该处理单元1120还用于根据第一指示信息确定是否接收扩展广播帧。
具体的,收发单元1110接收基础广播帧,进一步的,通过解析获取基础广播帧的物理层帧头或基础广播帧的物理层的有效荷载头中的第一指示信息。
在某些实施例中,该第一指示信息指示扩展广播帧的内容发生改变,具体的,该扩展广播帧的内容发生改变的含义与之前的描述类似。该收发单元1110根据第一指示信息接收扩展广播帧。
在某些实施例中,该第一指示信息指示扩展广播帧的内容未发生改变,具体的,该扩展广播帧的内容未发生改变的含义与之前的描述类似。对应的,该扩展广播帧的内容未发生改变,该处理单元1120中缓存有该扩展广播帧的内容,在一种可能的实现方式中,收发单元1110在之前一次的广播中,接收过与该扩展广播帧的内容一致的扩展广播帧,因此,该处理单元1120中缓存有该扩展广播帧的内容。该处理单元1120根据第一指示信息不接收扩展广播帧。
该处理单元1120还用于发起扫描请求或连接请求。
具体的,处理单元1120根据本次接收的或之前缓存的扩展广播帧的内容确定扫描请 求或连接请求窗的起始位置,在该位置处向第二设备发起扫描请求或连接请求。
需要说明的是,该广播的类型可以分为:可扫描,可连接,不可扫描,不可连接,在一种可能的实现方式中,该类型至少存在以下几种可能:可连接和可扫描,可连接和不可扫描,不可连接和可扫描,不可连接和不可扫描。
该收发单元1110接收扫描响应或与第二设备建立连接。
需要说明的是,前述步骤中中,若处理单元1120发起的是连接请求,第二设备和该通信装置建立连接。处理单元1120发起的是扫描请求,第二设备向收发单元1110发送扫描响应帧,该扫描响应帧中存在更多信息。
在某些实施例中,该收发单元1110可能接收其他指示信息,处理单元1120根据第一指示信息和其他指示信息确定后续广播消息帧的接收情况,详细描述可参考方法500对应的通信装置。
在一些实施例中,该通信装置1100可以是上文方法实施例800中的第二设备,也可以是用于实现上文方法实施例中第二设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法800中的第二设备对应的步骤。该通信装置1100包括:
收发单元1110,向第一设备发送基础广播帧。
处理单元1120,用于确定第一指示信息。
通信装置1100期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现通信装置1100,发起连接请求或发起扫描请求,进而,第一设备与处理单元1120建立连接或第一设备接收收发单元1110发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收收发单元1110发送的基础广播帧。
具体的,该第一指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该指示信息在物理层帧头中的位置如图6所示,该第一指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该第一指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第一指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第一指示信息在基础广播帧的有效载荷头中的位置如图7所示。该第一指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或者多个比特位,应理解,该第一指示信息也可以为基础广播帧的物理层的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
第一设备的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第一指示信息,或,第一设备的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取第一指示信息。
在一些实施例中,该通信装置1100可以是上文方法实施例900中的第一设备,也可 以是用于实现上文方法实施例中第一设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法900中的第一设备对应的步骤。该通信装置1100包括:
收发单元1110,用于接收第二设备发送的基础广播帧。
处理单元1120,用于解析基础广播帧,获取第二指示信息。
应理解,该通信装置是广播接收方的一例,该第二设备是广播发送方的一例。
第二设备期望被发现或接入时,可以发送可连接广播消息,收发单元1110可以通过接收广播消息发现第二设备,发起连接请求或发起扫描请求,进而,处理单元1120与第二设备建立连接或收发单元1110接收第二设备发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。收发单元1110可以周期性的接收第二设备发送的基础广播帧。
具体的,该第二指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特位,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第二指示信息在物理层帧头中的位置如图6所示,该第二指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该第二指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。处理单元1120在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第二指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第二指示信息在基础广播帧的有效载荷头中的位置如图7所示。该第二指示信息可以为在基础广播帧的有效载荷头中增加的比特位,应理解,该第二指示信息也可以为基础广播帧的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
处理单元1120的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第二指示信息,或,处理单元1120的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取第二指示信息。
该第二指示信息用于指示广播的类型,该广播的类型可以包括:可扫描,不可扫描,可连接,不可连接。在某些实施例中,可以用该第二指示信息中的两个比特位表示该广播的类型,例如00可以表示可扫描和可连接,01可以表示可扫描和不可连接,10可以表示不可扫描和可连接,11可以表示不可扫描和不可连接。
该处理单元1120还用于根据第二指示信息确定是否接收扩展广播帧。
具体的,收发单元1110接收基础广播帧,进一步的,解析基础广播帧的物理层帧头或有效荷载中的第二指示信息。
处理单元1120根据第二指示信息确定广播的类型是否为目标类型,若广播的类型为第一设备的目标类型,第一设备接收扩展广播帧。若广播的类型不是第一设备的目标类型,可选的,第一设备不接收扩展广播帧。可选的,第一设备接收扩展广播帧,但不进行后续步骤。
该处理单元1120发起扫描请求或连接请求。
需要说明的是,该步骤是可选的,处理单元1120确定广播的类型为目标类型,接收 扩展广播帧,向第二设备发起扫描请求或连接请求。
该收发单元1110接收扫描响应或该处理单1120与第二设备建立连接。
需要说明的是,该步骤是可选的,若处理单元1120发起的是连接请求,第二设备和处理单元1120建立连接。处理单元1120发起的是扫描请求,第二设备向收发单元1110发送扫描响应帧,该扫描响应帧中存在更多信息。
在某些实施例中,该收发单元1110可能接收其他指示信息,处理单元1120根据第二指示信息和其他指示信息确定后续广播消息帧的接收情况,详细描述可参考方法500对应的通信装置。
在一些实施例中,该通信装置1100可以是上文方法实施例900中的第二设备,也可以是用于实现上文方法实施例中第二设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法900中的第二设备对应的步骤。该通信装置1100包括:
收发单元1110,向第一设备发送基础广播帧。
处理单元1120,用于确定第二指示信息。
该通信装置1100期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现该通信装置1100,发起连接请求或发起扫描请求,进而,第一设备与处理单元1120建立连接或第一设备接收收发单元1110发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收收发单元1110发送的基础广播帧。
具体的,该第二指示信息位于基础广播帧的物理层帧头中,包括一个或多个比特位,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第二指示信息在物理层帧头中的位置如图6所示,该第二指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该第二指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第二指示信息位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第二指示信息在基础广播帧的有效载荷头中的位置如图7所示。该第二指示信息可以为在基础广播帧的有效载荷头中增加的比特位,应理解,该第二指示信息也可以为基础广播帧的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
该第二指示信息用于指示广播的类型。
在一些实施例中,该通信装置1100可以是上文方法实施例1000中的第一设备,也可以是用于实现上文方法实施例中第一设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法1000中的第一设备对应的步骤。该通信装置1100包括:
收发单元1110,用于接收第二设备发送的基础广播帧。
处理单元1120,用于解析基础广播帧,获取第三指示信息。
具体的,该第三指示信息可以位于基础广播帧的物理层帧头中,包括一个或多个比特位,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层 控制信息。该第三指示信息在物理层帧头中的位置如图6所示,该第三指示信息可以为在基础广播帧的帧头中增加的比特位,应理解,该第三指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。处理单元1120解析基础广播帧的物理层帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第三指示信息可以位于基础广播帧的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第三指示信息在基础广播帧的有效载荷头中的位置如图7所示。该第三指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或多个比特位,应理解,该第三指示信息也可以为基础广播帧的物理层的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
处理单元1120的物理层处理实体(或模块)解析基础广播帧的物理层帧头,获取第三指示信息,或,处理单元1120的高层处理实体(或模块)解析基础广播帧的物理层的有效载荷头,获取第三指示信息。
该处理单元1120还用于根据第三指示信息确定是否接收扩展广播帧。
需要说明的是,若处理单元1120根据第三指示信息确定扫描响应帧的内容未发生改变,收发单元1110不需要接收扩展广播帧,更不需要发起后续的流程。若处理单元1120根据第三指示信息确定扫描响应帧的内容发生改变,收发单元1110接收扩展广播帧。
该处理单元1120还用于发起扫描请求。
需要说明的是,该步骤是可选的。若处理单元1120根据第三指示信息确定扫描响应帧的内容未发生改变,处理单元1120不进行后续流程,第一设备不接收扩展广播帧,不发起扫描请求。若处理单元1120根据第三指示信息确定扫描响应帧的内容发生改变,处理单元1120确定需要接收扫描响应帧,对应的,收发单元1110需要接收扩展广播帧,根据扩展广播帧的内容和基础广播帧的内容发起扫描请求。
该收发单元1110还用于接收扫描响应帧。
需要说明的是,该步骤是可选的,处理单元1120发起扫描请求后,接收扫描响应帧。
在某些实施例中,该第三指示信息包括在扩展广播帧的帧头或有效荷载头中,该实施例中,收发单元1110接收基础广播帧,根据基础广播帧的内容接收扩展广播帧,在物理层解析扩展广播帧获取第三指示信息,若第三指示信息指示扫描响应帧的内容发生改变,处理单元1120发起扫描请求,从第二设备接收扫描响应帧。若第三指示信息指示扫描响应帧的内容未发生改变,处理单元1120不发起扫描请求,或,处理单元1120发起扫描请求但不接收扫描响应帧。
在某些实施例中,该收发单元1110可能接收其他指示信息,处理单元1120根据第三指示信息和其他指示信息确定后续广播消息帧的接收情况,详细描述可参考方法500对应的通信装置。
在一些实施例中,该通信装置1100可以是上文方法实施例1000中的第二设备,也可以是用于实现上文方法实施例中第二设备的功能的芯片。应理解,该通信装置1100可以对应于本申请实施例的方法1000中的第二设备对应的步骤。该通信装置1100包括:
收发单元1110,向第一设备发送基础广播帧。
处理单元1120,用于确定第三指示信息。
该通信装置1100期望被发现或接入时,可以发送可连接广播消息,第一设备可以通过接收广播消息发现该通信装置1100,发起连接请求或发起扫描请求,进而,第一设备与处理单元1120建立连接或第一设备接收收发单元1110发送的扫描响应帧。广播消息可以包括基础广播帧和扩展广播帧(或扩展数据帧)两部分,其中,基础广播帧可以在指定的一个或多个广播信道上依次重复发送,扩展广播帧可以在与基础广播帧不同的数据信道上发送。第一设备可以周期性的接收收发单元1110发送的基础广播帧。
具体的,该第三指示信息可以位于基础广播帧的物理层帧头中,包括一个或多个比特位,该基础广播帧的物理层帧头还可以包括基础广播帧的编解码、新传旧传指示等物理层控制信息。该第三指示信息在物理层帧头中的位置如图6所示,该第三指示信息可以为在基础广播帧的帧头中增加的一个或多个比特位,应理解,该第三指示信息也可以为基础广播帧的帧头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。第一设备在物理层解析基础广播帧的帧头,能够降低解析的难度,节省解析所使用的资源。
具体的,该第三指示信息可以位于基础广播帧的物理层的有效载荷头中,包括一个或多个比特位,该基础广播帧的物理层的有效载荷头还可以包括基础广播帧的高层控制信息,比如数据链路层的分段、重组、复用、逻辑信道优先级等链路层相关的一个或多个控制信息。该第三指示信息在基础广播帧的有效载荷头中的位置如图7所示。该第三指示信息可以为在基础广播帧的物理层的有效载荷头中增加的一个或多个比特位,应理解,该第三指示信息也可以为基础广播帧的物理层的有效载荷头中本身存在的比特位,可选的,该本身存在的比特位为暂时不用的比特位。
该第三指示信息用于指示扫描响应帧的内容是否发生改变,例如,第三指示信息可以包括1比特,通过0或1来表示是否发生改变。本申请实施例对该表示方法不做限定。
图12是本申请实施例的通信装置1200的示意图,该通信装置1200包括:收发器1210、处理器1220和存储器1230。该存储器1230,用于存储指令。该处理器1220与存储器1230耦合,用于执行存储器中存储的指令,以执行上述本申请实施例提供的方法
具体的,该通信装置1200中的收发器1210可以对应于通信装置1100中的收发单元1110,该通信装置1200中的处理器1220可以对应于通信装置1100中的处理单元1120。
应理解,上述存储器1230和处理器1220可以合成一个处理装置,处理器1220用于执行存储器1230中存储的程序代码来实现上述功能。具体实现时,该存储器1230也可以集成在处理器1220中,或者独立于处理器1220。
应理解,各收发器处理器执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (21)

  1. 一种处理广播信息的方法,其特征在于,包括:
    第一设备接收第二设备发送的基础广播帧;
    所述第一设备解析所述基础广播帧,获取指示信息,所述指示信息包括以下至少一项:
    第一指示信息,所述第一指示信息用于指示扩展广播帧的内容是否发生改变,
    第二指示信息,所述第二指示信息用于指示广播的类型,
    第三指示信息,所述第三指示信息用于指示扫描响应帧的内容是否发生改变;
    所述第一设备根据所述指示信息确定是否接收所述扩展广播帧。
  2. 根据权利要求1所述的方法,其特征在于,所述指示信息包括在所述基础广播帧的物理层帧头中,所述第一设备解析所述基础广播帧,获取指示信息,包括:
    所述第一设备解析所述基础广播帧的物理层帧头;
    所述第一设备从所述基础广播帧的物理层帧头获取所述指示信息。
  3. 根据权利要求1所述的方法,其特征在于,所述指示信息包括在所述基础广播帧的物理层的有效载荷头中,所述第一设备解析所述基础广播帧,获取指示信息,包括:
    所述第一设备解析所述基础广播帧的物理层的有效载荷头;
    所述第一设备从所述基础广播帧的物理层的有效载荷头获取所述指示信息。
  4. 根据权利要求1至3中任一项所述的方法,其特征在于,当所述指示信息包括所述第一指示信息,所述第一设备根据所述指示信息确定是否接收所述扩展广播帧,包括:
    所述第一设备根据所述第一指示信息确定所述扩展广播帧的内容发生改变,接收所述扩展广播帧,或,
    所述第一设备根据所述第一指示信息确定所述扩展广播帧的内容未发生改变,不接收所述扩展广播帧。
  5. 根据权利要求1至3中任一项所述的方法,其特征在于,当所述指示信息包括所述第二指示信息,所述第一设备根据所述指示信息确定是否接收所述扩展广播帧,包括:
    所述第一设备根据所述第二指示信息指示的所述广播的类型确定是否接收所述扩展广播帧。
  6. 根据权利要求1至3中任一项所述的方法,其特征在于,当所述指示信息包括所述第三指示信息,所述第一设备根据所述指示信息确定是否接收所述扩展广播帧,包括:
    所述第一设备根据所述第三指示信息确定所述扫描响应帧的内容发生改变,接收所述扩展广播帧,或,
    所述第一设备根据所述第三指示信息确定所述扫描响应帧的内容未发生改变,不接收所述扩展广播帧。
  7. 根据权利要求1至6中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一设备确定接收所述扩展广播帧,所述第一设备根据所述基础广播帧和所述扩展广播帧接收所述扫描响应帧,或者,
    所述第一设备确定不接收所述扩展广播帧,所述第一设备根据所述基础广播帧接收所述扫描响应帧。
  8. 一种处理广播信息的方法,其特征在于,包括:
    第二设备向第一设备发送基础广播帧,所述基础广播帧中包括指示信息,所述指示信息为所述第一设备解析所述基础广播帧获取,所述指示信息包括以下至少一项:
    第一指示信息,所述第一指示信息用于指示扩展广播帧的内容是否发生改变,
    第二指示信息,所述第二指示信息用于指示广播的类型,
    第三指示信息,所述第三指示信息用于指示扫描响应帧的内容是否发生改变。
  9. 根据权利要求7所述的方法,其特征在于,所述指示信息包括在所述基础广播帧的物理层帧头或所述基础广播帧的物理层的有效载荷头中。
  10. 一种处理广播信息的通信装置,其特征在于,包括:
    收发单元,用于接收第二设备发送的基础广播帧;
    处理单元,用于解析所述基础广播帧,获取指示信息,所述指示信息包括以下至少一项:
    第一指示信息,所述第一指示信息用于指示扩展广播帧的内容是否发生改变,
    第二指示信息,所述第二指示信息用于指示广播的类型,
    第三指示信息,所述第三指示信息用于指示扫描响应帧的内容是否发生改变;
    所述处理单元还用于根据所述指示信息确定是否接收所述扩展广播帧。
  11. 根据权利要求10所述的通信装置,其特征在于,所述指示信息包括在所述基础广播帧的物理层帧头中,所述处理单元解析所述基础广播帧,获取指示信息,包括:
    所述处理单元解析所述基础广播帧的物理层帧头;
    所述处理单元从所述基础广播帧的物理层帧头获取所述指示信息。
  12. 根据权利要求10所述的通信装置,其特征在于,所述指示信息包括在所述基础广播帧的物理层的有效载荷头中,所述处理单元解析所述基础广播帧,获取指示信息,包括:
    所述处理单元解析所述基础广播帧的物理层的有效载荷头;
    所述处理单元从所述基础广播帧的物理层的有效载荷头中获取所述指示信息。
  13. 根据权利要求10至12中任一项所述的通信装置,其特征在于,当所述指示信息包括所述第一指示信息,所述处理单元根据所述指示信息确定是否接收所述扩展广播帧,包括:
    所述处理单元根据所述第一指示信息确定所述扩展广播帧的内容发生改变后,所述收发单元接收所述扩展广播帧,或,
    所述处理单元根据所述第一指示信息确定所述扩展广播帧的内容未发生改变后,所述收发单元不接收所述扩展广播帧。
  14. 根据权利要求10至12中任一项所述的通信装置,其特征在于,当所述指示信息包括所述第二指示信息,所述处理单元根据所述指示信息确定是否接收所述扩展广播帧,包括:
    所述处理单元根据所述第二指示信息指示的所述广播的类型确定是否接收所述扩展广播帧。
  15. 根据权利要求10至12中任一项所述的通信装置,其特征在于,当所述指示信息包括所述第三指示信息,所述处理单元根据所述指示信息确定是否接收所述扩展广播帧, 包括:
    所述处理单元根据所述第三指示信息确定所述扫描响应帧的内容发生改变,所述收发单元接收所述扩展广播帧,或,
    所述处理单元根据所述第三指示信息确定所述扫描响应帧的内容未发生改变,所述收发单元不接收所述扩展广播帧。
  16. 根据权利要求10至15中任一项所述的通信装置,其特征在于,所述通信装置还用于:
    所述处理单元确定接收所述扩展广播帧,所述收发单元根据所述基础广播帧和所述扩展广播帧接收所述扫描响应帧,或者,
    所述处理单元确定不接收所述扩展广播帧,所述收发单元根据所述基础广播帧接收所述扫描响应帧。
  17. 一种处理广播信息的通信装置,其特征在于,包括:
    收发单元,用于向第一设备发送基础广播帧,所述基础广播帧中包括指示信息,所述指示信息为所述第一设备解析获取,所述指示信息包括以下至少一项:
    第一指示信息,所述第一指示信息用于指示扩展广播帧的内容是否发生改变,
    第二指示信息,所述第二指示信息用于指示广播的类型,
    第三指示信息,所述第三指示信息用于指示扫描响应帧的内容是否发生改变。
  18. 根据权利要求17所述的通信装置,其特征在于,所述指示信息包括在所述基础广播帧的物理层帧头或所述基础广播帧物理层的有效载荷头中。
  19. 一种通信系统,其特征在于,包括权利要求10至16中任一项所述的通信装置和权利要求17或18所述的通信装置。
  20. 一种计算机可读存储介质,其特征在于,所述计算机可读介质上存储有计算机指令,当所述计算机指令在计算机上运行时,使得所述计算机执行如权利要求1至9中任一项所述的通信方法。
  21. 一种芯片,其特征在于,包括处理器和存储器,所述存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机介质,以执行如权利要求1至9中任一项所述的方法。
PCT/CN2022/084815 2021-07-21 2022-04-01 处理广播信息的方法和装置 WO2023000710A1 (zh)

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