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 PDFInfo
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- 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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- 238000000034 method Methods 0.000 title claims abstract description 117
- 230000004044 response Effects 0.000 claims abstract description 218
- 230000006854 communication Effects 0.000 claims abstract description 161
- 238000004891 communication Methods 0.000 claims abstract description 158
- 230000015654 memory Effects 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 description 37
- 230000006870 function Effects 0.000 description 23
- 230000011218 segmentation Effects 0.000 description 15
- 230000008859 change Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 230000010365 information processing Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000003672 processing method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000013468 resource allocation Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing 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
Description
Claims (21)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
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WO2018148830A1 (en) * | 2017-02-15 | 2018-08-23 | Arctec Mobile Inc. | Embedded codes, links and descriptions in broadcast, streaming and downloaded videos |
CN108494610A (zh) * | 2018-05-23 | 2018-09-04 | 南京邮电大学 | 基于6LoBLE的低功耗蓝牙IPv6地址自动配置方法 |
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CN103004215A (zh) * | 2011-05-19 | 2013-03-27 | 索尼公司 | 图像数据传送装置、图像数据传送方法和图像数据接收装置 |
CN103002515A (zh) * | 2011-09-16 | 2013-03-27 | 华为技术有限公司 | 静默模式指示方法、静默模式下的数据传输方法及装置 |
CN105303408A (zh) * | 2015-11-06 | 2016-02-03 | Tcl集团股份有限公司 | 一种通过WiFi热点发布广告的方法及系统 |
WO2018148830A1 (en) * | 2017-02-15 | 2018-08-23 | Arctec Mobile Inc. | Embedded codes, links and descriptions in broadcast, streaming and downloaded videos |
CN108494610A (zh) * | 2018-05-23 | 2018-09-04 | 南京邮电大学 | 基于6LoBLE的低功耗蓝牙IPv6地址自动配置方法 |
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EP4358597A4 (en) | 2024-04-24 |
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