WO2025256367A1 - 一种用于通信的方法、设备、存储介质和程序产品 - Google Patents
一种用于通信的方法、设备、存储介质和程序产品Info
- Publication number
- WO2025256367A1 WO2025256367A1 PCT/CN2025/096213 CN2025096213W WO2025256367A1 WO 2025256367 A1 WO2025256367 A1 WO 2025256367A1 CN 2025096213 W CN2025096213 W CN 2025096213W WO 2025256367 A1 WO2025256367 A1 WO 2025256367A1
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- communication system
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- resources
- cellular
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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
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
Definitions
- the embodiments of this application generally relate to the field of communications, and more specifically to a method, apparatus, computer-readable storage medium, and computer program product for communication.
- a communication network can be viewed as a facility that enables communication between two or more communication devices or provides communication devices with access to a data network.
- Mobile or wireless communication networks are an example of a communication network.
- Such communication networks can operate according to standards, such as those specified by the 3rd Generation Partnership Project (3GPP) or the European Telecommunications Standards Institute (ETSI). Examples of such standards include the so-called 5th Generation (5G) standard or other standards specified by 3GPP or ETSI.
- 5G 5th Generation
- the multi-system coexistence environment of cellular communication systems and Wi-Fi systems requires further optimization.
- Embodiments of this application provide a technical solution for communication, and more particularly relate to a technical solution for indicating a coexistence resource request.
- a communication method is provided.
- the method can be executed by a first device in a first communication system or by a chip applied within the first device.
- the following description uses the example of the first device in the first communication system as the executing entity.
- the first device in the first communication system monitors a first signal from at least one second device in a second communication system.
- the first signal indicates that the second communication system has a demand for communication resources.
- the first communication system includes a cellular communication system
- the second communication system includes a Wi-Fi communication system.
- the cellular system can allocate resources to the Wi-Fi system according to its demand, resolving resource conflicts during coexistence, improving the quality of service (QoS) of the cellular system, and increasing the efficiency of air interface resource utilization.
- QoS quality of service
- At least one of the front and back segments of the transmission resources for the first signal includes a timer protection interval, which is not less than the timer offset of the second device. This avoids interference when the timer of the second device has an offset, reduces the accuracy requirements of the second device's timer, and improves reliability.
- the back-end of the transmission resources for the first signal includes a propagation guard interval, which is not less than the propagation delay from the second device to the first device. This avoids interference caused by propagation delay within the coverage area of the cellular system's gNB, improving reliability.
- the transmission resources of the first signal include a frequency domain guard interval, which is not less than the frequency domain offset of the first signal. This avoids interference caused by frequency deviation between the second and first devices, reduces the frequency offset estimation requirements for the second device, and improves reliability.
- the first device monitoring the first signal includes detecting the presence of transmission energy on the transmission resources of the first signal. This allows the first device to detect the first signal, such as a request signal, using a simple energy detection method, reducing computational complexity.
- the first device detecting the presence of transmission energy on the transmission resource includes: the first device detecting energy at multiple sampling points of the transmission resource based on its air interface parameters. Then, the first device calculates the total energy at the multiple sampling points and determines whether this energy exceeds an energy threshold. In this way, the first device can employ a time-frequency domain energy transmission mode suitable for the first signal for detection, improving the accuracy of the first signal detection.
- the first device further sends a second signal to at least one second device in the second communication system.
- the second signal indicates the transmission resources available for the first signal.
- the second signal for example a guiding signal
- the second signal is periodically repeated. This enables fast and accurate synchronization between the cellular gNB and the Wi-Fi access point, and accurately indicates the time-frequency resource location of the first signal, such as a request signal.
- the second signal indicates the initial transmission resources for the first signal. Subsequent transmission resources for the first signal repeat at predetermined periods after the initial transmission. This allows for a simple and direct indication of the time-frequency resource location of the first signal, reducing the resource overhead of the indication.
- the first device based on the detection of a first signal, sends a scheduling signal to at least one second device, instructing the first device to allocate communication resources to the second communication system.
- the cellular system can dynamically schedule the resources of the Wi-Fi system on demand, prioritizing the QoS of the cellular system and improving the efficiency of air interface resource utilization.
- the scheduling signal is a coexistence signal of the first and second communication systems
- the first device also sends the scheduling signal to a third device in the first communication system.
- a third device such as a cellular system user equipment (UE)
- UE cellular system user equipment
- the first device also sends an indication signal to a third device in the first communication system.
- the indication signal is used to indicate the communication resources allocated to the second communication system. This provides a flexible way to notify a third device, such as a cellular system UE, of communication resources, thereby avoiding further detection by the UE and saving power.
- the first device releases subsequent periodic transmission resources for the first signal based on the fact that the first signal has not been detected on a first number of consecutive periodic transmission resources used for the first signal, and the first number exceeds a threshold number. This improves the efficiency of air interface resource utilization.
- the threshold number is predefined or indicated in a second signal used to indicate periodically transmitted resources. This allows for multiple ways to indicate the threshold number, increasing flexibility.
- the first device includes a base station
- the third device includes user equipment.
- the second device may include an access point.
- the base station of the cellular system can efficiently allocate resources for the access point of the Wi-Fi system, while simultaneously achieving low power consumption for the user equipment of the cellular system.
- the executing entity of this method can be a second device in a second communication system, or a chip applied in the second device.
- the following description uses the example of the second device in the second communication system as the executing entity.
- the second device in the second communication system determines whether the second communication system has a demand for communication resources. Then, based on the determination that the second communication system has a demand for communication resources, the second device sends a first signal to a first device in the first communication system. The first signal is used to indicate that the second communication system has a demand for communication resources.
- the first communication system includes a cellular communication system
- the second communication system includes a Wi-Fi communication system.
- the cellular system can allocate resources to the Wi-Fi system according to the demand of the Wi-Fi system, resolving resource conflicts during coexistence, improving the service quality of the cellular system, and improving the efficiency of air interface resource utilization.
- At least one of the front and back segments of the transmission resources for the first signal includes a timer protection interval, which is not less than the timer offset of the second device. This avoids interference when the timer of the second device has an offset, reduces the accuracy requirements of the second device's timer, and improves reliability.
- the back-end of the transmission resources for the first signal includes a propagation guard interval, which is not less than the propagation delay from the second device to the first device. This avoids interference caused by propagation delay within the coverage area of the cellular system's gNB, improving reliability.
- the transmission resources of the first signal include a frequency domain guard interval, which is not less than the frequency domain offset of the first signal. This avoids interference caused by frequency deviation between the second and first devices, reduces the frequency offset estimation requirements for the second device, and improves reliability.
- the second device sending the first signal includes modulating energy onto the transmission resources of the first signal based on pulse modulation.
- the first device can detect the first signal, such as a request signal, using a simple energy detection method, reducing computational complexity.
- the second device modulates energy onto the transmission resources of the first signal by modulating the energy onto orthogonal frequency division multiplexing (OFDM) symbols and subcarriers within the non-guard interval region of the transmission resources, based on the second device's parameter set and radio frequency transmit power constraints.
- OFDM orthogonal frequency division multiplexing
- the second device also receives a second signal from the first device.
- This second signal indicates the transmission resources available for the first signal.
- the second signal for example a guiding signal, can indicate the transmission resources available for the first signal, such as a request signal, enabling the second device to request the first device to allocate transmission resources when data transmission is needed, resolving conflicts, improving the quality of service of the cellular system, and increasing the efficiency of air interface resource utilization.
- the second signal is repeated periodically. This enables fast and accurate synchronization between the cellular gNB and the Wi-Fi access point, and accurately indicates the time-frequency resource location of the first signal, such as a request signal.
- the second signal indicates the initial transmission resources for the first signal. Subsequent transmission resources for the first signal repeat at predetermined periods after the initial transmission. This allows for a simple and direct indication of the time-frequency resource location of the first signal, reducing the resource overhead of the indication.
- the second device also receives a scheduling signal from the first device.
- the scheduling signal instructs the first device to allocate communication resources to the second communication system.
- the cellular system can dynamically schedule the resources of the Wi-Fi system on demand, prioritizing the QoS of the cellular system and improving the efficiency of air interface resource utilization.
- the scheduling signal is a coexistence signal between the first and second communication systems. This allows for efficient scheduling of radio resources between the two systems, ensuring the QoS of the cellular system and preventing interference.
- the second device performs communication on communication resources allocated to the second communication system. In this way, the resources allocated to Wi-Fi can be scheduled by the cellular system on demand, achieving efficient utilization of shared wireless resources.
- the first device includes a base station.
- the second device may include an access point.
- the base station of a cellular system can efficiently allocate resources for the access point of a Wi-Fi system, while simultaneously achieving low power consumption for user equipment in the cellular system.
- the execution subject of this method can be a third device in a first communication system, or a chip applied in the third device.
- the following description uses the example of the third device in the first communication system as the execution subject.
- the third device in the first communication system receives indication information from the first device in the first communication system. This indication information is used to instruct the first device to allocate communication resources to the second communication system. Furthermore, the third device avoids performing channel detection on the communication resources.
- the first communication system includes a cellular communication system
- the second communication system includes a Wi-Fi communication system. This reduces the power consumption of the third device in the first communication system, such as a user device, and is suitable for various power-intensive applications, such as the Internet of Things (IoT).
- IoT Internet of Things
- the indication information is received via a coexisting signal from both the first and second communication systems. This use of a coexisting signal for indication improves the utilization of inefficient resources.
- the indication information is received via an indication signal in a first communication system. This allows for separate indication of the signal, increasing flexibility.
- the third device resumes channel detection after the communication resources indicated by the indication information. This improves the response speed to services and enhances communication reliability.
- a third device monitors a second signal sent by the first device to at least one second device in the second communication system.
- the second signal indicates transmission resources for the first signal, which in turn indicates a demand for communication resources in the second communication system. Consequently, the third device avoids performing channel detection on the transmission resources. This reduces power consumption of the third device in the first communication system, such as a user equipment, making it suitable for various application scenarios, such as IoT.
- the first device includes a base station
- the third device includes user equipment.
- at least one second device includes an access point.
- the base station of a cellular system can efficiently schedule radio interface resources for the access point of a Wi-Fi system, while simultaneously achieving low power consumption for the user equipment of the cellular system.
- a first device for a first communication system which can implement the method of the first aspect.
- a second device for a second communication system which can implement the method of the first aspect.
- a third device for a first communication system which can implement the method of the third aspect.
- a seventh aspect provides a communication device, including a processor and a memory storing instructions. When executed by the processor, the instructions cause the communication device to perform the methods of the first, second, or third aspect.
- a computer-readable storage medium which stores instructions. When executed by a communication device, the instructions cause the communication device to perform the methods of the first, second, or third aspect.
- a ninth aspect provides a computer program product comprising instructions. When executed by a communication device, the instructions cause the communication device to perform the methods of the first, second, or third aspect.
- a chip including processing circuitry.
- the processing circuitry is configured to perform the methods of the first, second, or third aspect.
- Figure 1 illustrates a communication system that can be implemented according to an embodiment of this application.
- Figure 2 shows a signaling diagram of multiple communication systems coexisting in an embodiment of this application.
- Figure 3 shows a signaling diagram of a Wi-Fi access point requesting resources from a cellular network node in an embodiment of this application.
- Figure 4 shows a schematic diagram of the guiding signal indicating the time-frequency resources of the request signal in an embodiment of this application.
- Figure 5 shows a schematic diagram of the time-domain protection interval of the request signal in an embodiment of this application.
- Figure 6 shows a schematic diagram of pulse modulation and signal propagation of the request signal in an embodiment of this application.
- Figure 7 shows a schematic diagram of multiple request signals overlapping in an embodiment of this application.
- Figure 8 shows a schematic diagram of scheduling Wi-Fi time and frequency resources using scheduling signals in an embodiment of this application.
- Figure 9 shows a schematic diagram of a user terminal not detecting the channel when the time-frequency resources scheduled for Wi-Fi are allocated in an embodiment of this application.
- Figure 10 shows a flowchart of the processing of the first device of the first communication system in an embodiment of this application.
- FIG 11 shows a flowchart of the processing of the second device of the second communication system in an embodiment of this application.
- Figure 12 shows a flowchart of the processing of the third device of the first communication system in an embodiment of this application.
- Figure 13 shows a block diagram of the device in an embodiment of this application.
- Figure 14 shows a schematic diagram of the structure of a first device that can be used to implement a first communication system in an embodiment of this application.
- Figure 15 shows a schematic diagram of the structure of a second device that can be used to implement a second communication system in an embodiment of this application.
- Figure 16 shows a schematic diagram of the structure of a third device that can be used to implement a first communication system in an embodiment of this application.
- the allocation of the 6GHz (5925MHz-7125MHz) spectrum can be broadly categorized into three types.
- the first type represented by countries and regions such as the United States, Canada, Brazil, South Korea, and Saudi Arabia, allows the entire 6GHz band to be used for Wi-Fi as an unlicensed band.
- the second type represented by countries and regions such as the European Union and Russia, allows the 6GHz band to be used in segments, with 5925-6425MHz being an unlicensed band available for Wi-Fi, while the allocation of the 6425-7125MHz (U6G) band remains undecided, with a current preference for coexistence of cellular and Wi-Fi use in this band.
- the third type represented by regions in Asia, Africa, and many Belt and Road Initiative countries, lacks a clear 6GHz allocation policy but tends to reserve it as a licensed band for 5G/6G. China, on the other hand, has allocated the U6G band to 3GPP (i.e., 5G and future 6G).
- 3GPP i.e., 5G and future 6G
- ECC Electronic Communications Committee
- the main viewpoints can be divided into two main categories: coexistence solutions, namely standalone solutions similar to 5G New Radio-Unlicensed (NR-U), and solutions based on coexistence signals.
- NR-U allows cellular and Wi-Fi devices to share spectrum resources. The main requirement is that cellular devices must undergo a channel access procedure similar to random access before transmitting.
- NR-U can be divided into Type 1 and Type 2.
- Type 1 (“Listen Before Talk (LBT) Cat4”) is primarily used to initiate a channel occupancy time (COT), waiting for the channel to become idle by detecting the channel status and setting a counter backoff.
- Type 2 is used between multiple transmissions within the same COT.
- Type 2 channel access is further divided into three different subtypes (cats): Type 2A (“LBT Cat2”) is primarily used for transmissions with an interval of 25 microseconds and for Discovery Bursts; Type 2B has a transmission interval of 16 microseconds; and Type 2C (“LBT Cat 1”) has a transmission interval of less than 16 microseconds.
- LBT Cat2 LBT Cat2
- Type 2B has a transmission interval of 16 microseconds
- Type 2C (“LBT Cat 1”) has a transmission interval of less than 16 microseconds.
- the coexistence of signals schemes introduces signaling that both cellular and Wi-Fi devices can detect or decode, building upon the standalone approach, thereby reducing conflicts and interference between the two systems.
- the core idea is to detect or decode cross-technology signaling, allowing each device to self-authorize access to the shared medium. For example, a Wi-Fi device might identify a cellular signal and then use possible interference avoidance mechanisms. Alternatively, a cellular device might identify a Wi-Fi signal and then use possible interference avoidance mechanisms.
- embodiments of this application propose a coexistence scheme where the cellular base station leads and coordinates resource scheduling.
- This scheme includes coexistence signaling and process design to achieve coexistence and interoperability between Wi-Fi devices and the cellular system, avoiding interference and improving the QoS of the cellular system.
- a second device in a second communication system determines whether the second communication system has a demand for communication resources. If a communication demand exists, the second device in the second communication system sends a first signal, such as an indication signal, to a first device in a first communication system, such as a cellular communication system (gNB).
- the first signal indicates that the second communication system has a demand for communication resources.
- the cellular system can allocate resources to the Wi-Fi system according to the Wi-Fi system's demand, resolving resource conflicts during coexistence, improving the service quality of the cellular system, and increasing air interface resource utilization efficiency.
- the first signal can indicate the transmission resources of a second signal, such as a request signal.
- a third device in a first communication system of a cellular user equipment (UE) receives indication information from the first device in the first communication system. This indication information is used to indicate the communication resources allocated by the first device to the second communication system. Furthermore, the third device in the first communication system avoids performing channel detection on communication resources. This reduces the power consumption of the third device in the first communication system of the user equipment, making it suitable for various application scenarios, such as IoT.
- the first communication system may also be a satellite communication system, a trunking communication system or other communication system
- the second communication system may be other communication systems such as Bluetooth or ZigBee. This application does not limit the scope of the communication system.
- Figure 1 illustrates a communication system that can be implemented according to an embodiment of this application.
- the first device 110 of the first communication system can be a base station of a cellular communication system, such as a gNB in a 5G or future communication system.
- the second device 115 of the second communication system can be an access point (AP) of a Wi-Fi system.
- the third device 120 of the first communication system can be a user equipment (UE) of the first communication system.
- the service area of the first device 110 of the first communication system is 135, and the service area of the second device 115 of the second communication system is 140.
- the first device 110 of the first communication system and the second device 115 of the second communication system perform signaling coordination for coexistence in the same spectrum through link 145. There can be multiple UEs in the service area 135, such as 120 and 125.
- UEs 120 and 125 are not in the service area 140. Therefore, UEs 120 and 125 use the services of the cellular system and not the services of Wi-Fi.
- the third device 120 of the first communication system can also be implemented as UE 130, located within the overlapping area of service areas 135 and 140. In this case, the cellular protocol portion of UE 130 uses the services of the cellular system and not the services of Wi-Fi.
- the first communication system may also be a satellite communication system, a trunking communication system, or other communication systems, and the second communication system may be other communication systems such as Bluetooth or ZigBee. This application does not limit the specific communication system in this regard.
- the wireless communication system 100 in this application embodiment can be applied to the three major application scenarios of 5G mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and enhanced machine-type communication (eMTC), or 5G advanced or 6G communication system scenarios.
- enhanced mobile broadband eMBB
- ultra-reliable low-latency communication URLLC
- enhanced machine-type communication eMTC
- wireless communication systems are applicable to both high-frequency scenarios (above 6G) and low-frequency scenarios (sub-6G), such as millimeter waves.
- Application scenarios for wireless communication systems include, but are not limited to, existing communication systems such as fifth-generation systems (5G) and new radio (NR) communication systems, or future evolved public land mobile network (PLMN) systems.
- 5G fifth-generation systems
- NR new radio
- PLMN public land mobile network
- the third device 120 shown above can be a terminal device, such as a user equipment (UE), terminal, access terminal, terminal unit, terminal station, mobile station (MS), remote station, remote terminal, mobile terminal, wireless communication device, terminal agent, or terminal device.
- the third device 120 can also be a communication chip with a communication module, a vehicle with communication capabilities, or in-vehicle equipment (such as an in-vehicle communication device or in-vehicle communication chip).
- This third device 120 can have wireless transceiver capabilities, enabling it to communicate (e.g., wirelessly) with one or more network devices in one or more communication systems and receive network services provided by the network devices.
- These network devices include, but are not limited to, the first device 110 shown in Figure 1.
- the terminal device can be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in future 5G networks, or terminal device in future evolved PLMNs, etc.
- SIP session initiation protocol
- WLL wireless local loop
- PDA personal digital assistant
- the terminal device 120 can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in telemedicine, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.
- VR virtual reality
- AR augmented reality
- terminal device 120 can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; terminal device 120 can also be deployed on water (such as ships); terminal device 120 can also be deployed in the air (such as on airplanes, balloons, and satellites).
- Network equipment can be access network equipment (or access point).
- Access network equipment refers to equipment that provides network access functions, such as radio access network (RAN) equipment, etc.
- the first device 110 may specifically include a base station (BS), or include a base station and radio resource management equipment for controlling the base station, etc.
- the first device 110 may also include a relay station (such as relay equipment), an access point, and a base station in a 5G network or an NR base station, or a base station in a future PLMN network, etc.
- Access network equipment (such as the first device 110) can be wearable devices or vehicle-mounted devices.
- the first device 110 can also be a communication chip with a communication module.
- the first device 110 of the cellular system access network equipment includes, but is not limited to: base stations (gnodeB, gNB) in 5G, evolved node B (eNB) in long term evolution (LTE) systems, radio network controllers (RNC), radio controllers, base station controllers (BSC) in cloud radio access network (CRAN) systems, home base stations (e.g., home evolved nodeB, or home node B, HNB), baseband units (BBU), transmitting and receiving points (TRP), transmitting points (TP), mobile switching centers, and may also be evolved NBs (eNB or eNodeB) in LTE, base station equipment in future 5G networks or access network equipment in future evolved PLMN networks, and may also be wearable devices or vehicle-mounted devices.
- base stations eNB or eNodeB
- eNB evolved node B
- LTE long term evolution
- RNC radio network controllers
- BSC base station controllers
- CRAN cloud radio access network
- home base stations e.g., home
- a centralized unit (CU) and a distributed unit (DU) may be included.
- the network device may also include an active antenna unit (AAU).
- the CU implements some of the functions of the network device, and the DU implements some of the functions of the network device.
- the CU is responsible for handling non-real-time protocols and services, implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers.
- the DU is responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers.
- the AAU implements some physical layer processing functions, radio frequency processing, and related functions of the active antenna.
- network devices can be one or more of the following: CU nodes, DU nodes, and AAU nodes.
- the CU can be classified as network devices in the access network, such as the Radio Access Network (RAN), or as network devices in the core network (CN); this application does not limit this.
- RAN Radio Access Network
- CN core network
- network devices include, but are not limited to, NodeB (or NB), evolved NodeB (eNodeB or eNB), next-generation NodeB (gNB), Transmit Receive Point (TRP), Remote Radio Unit (RRU), Radio Head (RH), Remote Radio Head (RRH), IAB nodes, low-power nodes such as femtonodes, piconodes, reconfigurable smart surfaces (RIS), and network control repeaters.
- NodeB or NB
- evolved NodeB evolved NodeB (eNodeB or eNB)
- next-generation NodeB gNB
- TRP Receive Point
- RRU Remote Radio Unit
- RH Radio Head
- RRH Remote Radio Head
- IAB nodes low-power nodes such as femtonodes, piconodes, reconfigurable smart surfaces (RIS), and network control repeaters.
- RIS reconfigurable smart surfaces
- the first device 110 acting as a cellular system access network device, can connect to a core network (CN) device.
- the core network device can provide core network services to both the first device 110 and the terminal device 120.
- the core network device can correspond to different devices in different systems. For instance, in 3G, the core network device can correspond to a Serving GPRS Support Node (SGSN) and/or a Gateway GPRS Support Node (GGSN).
- SGSN Serving GPRS Support Node
- GGSN Gateway GPRS Support Node
- MME Mobility Management Entity
- S-GW Serving Gateway
- the core network device can correspond to the Access and Mobility Management Function (AMF), Session Management Function (SMF), or User Plane Function (UPF), etc.
- AMF Access and Mobility Management Function
- SMF Session Management Function
- UPF User Plane Function
- Figure 2 illustrates a signaling diagram of multiple communication systems coexisting in an embodiment of this application.
- the first device 110 of the first communication network, the second device 115 of the second communication network, and the third device 120 of the first communication network correspond to the first device 110, the second device 115, and the third device 120 in Figure 1, respectively.
- the first communication system i.e., the first communication network
- the second communication system i.e., the second communication network
- the first device 110 of the first communication network monitors a first signal indicating that the second communication network has a demand for communication resources.
- the second device 115 of the second communication network determines whether the second communication network has a demand for communication resources.
- the second device 115 of the second communication network sends (218) the first signal 220 to the first device 110 of the first communication network.
- the Wi-Fi system can request resources from the cellular communication system according to demand, resolve resource conflicts during coexistence, improve the service quality of the cellular system, and improve the efficiency of air interface resource utilization.
- the first device 110 of the first communication network sends (223) the indication information 225 to the third device 120 of the first communication network.
- the indication information 225 indicates the communication resources allocated by the first device 110 to the second communication network. Consequently, the third device 120 avoids performing channel detection on the communication resources. In this way, the power consumption of the third device 120 of the first communication network, such as user equipment, can be reduced, and it can be used in various low-power application scenarios such as the Internet of Things (IoT).
- IoT Internet of Things
- Figure 3 shows a signaling diagram of a Wi-Fi access point requesting resources from a cellular network node in an embodiment of this application.
- Figure 4 shows a schematic diagram of a pilot signal indicating time-frequency resources for a request signal in an embodiment of this application.
- the cellular network node gNB 310 and the Wi-Fi access point 315 are specific implementations of the first device 110 and the second device 115 in Figures 1 and 2, respectively.
- Wi-Fi access point 315 detects a guide signal.
- Cellular node gNB 310 sends (318) a second signal, such as guide signal 320, to Wi-Fi access point 315.
- the second signal such as guide signal 320, can be used for synchronization and to indicate the transmission resources of a first signal, such as a request signal.
- Guide signal 320 can carry two fields: a preamble field and an indication field.
- the preamble field can be used for “downlink” coarse synchronization between Wi-Fi access point 315 and the cellular system.
- the indication field is used to indicate (322) to Wi-Fi access point 315 the time-frequency resources available for sending request signals 325, 340.
- Request signals 325, 340 correspond to the first signal in FIG2.
- gNB 310 allocates resources to the Wi-Fi system according to the needs of Wi-Fi access point 315, thereby avoiding conflicts, prioritizing the QoS of the cellular system, and improving the utilization of air interface resources.
- the second signal can be transmitted periodically.
- the pilot signal 320 can be periodically broadcast by the gNB 310 at a fixed position in the frequency domain using a protocol-defined transmission format, i.e., the pilot signals 405 and 410 in Figure 4 are periodically broadcast.
- the Wi-Fi access point 315 can quickly capture the second signal, achieve rapid synchronization with the gNB 310, and quickly obtain an indication of the time-frequency resource location of the requested signal.
- the Wi-Fi access point 315 in the time-frequency resources indicated by the pilot signal 320, the Wi-Fi access point 315 sends a request signal 325 (323) to inform the gNB 310 that there is a demand for Wi-Fi spectrum resources within its coverage area.
- the pilot signal 405 indicates the location of the request signal time-frequency resources, and the Wi-Fi access point 315 sends the request signal 415 at this location.
- the first device sends a scheduling signal to at least one second device based on the detection of the first signal.
- the scheduling signal indicates the communication resources allocated by the first device to the second communication system. For example, when the gNB 305 detects the request signal 325 (corresponding to the request signal 415 in FIG.
- the gNB 310 at the request signal resource location, it sends a scheduling signal 330 (328) to further allocate time-frequency resources for data transmission to the Wi-Fi access point 315. If the gNB 310 does not detect the request signal 325 at the request signal resource location, it does not send the scheduling signal 330, that is, it does not allocate resources to Wi-Fi. After receiving the scheduling signal 330, the Wi-Fi access point 315 uses the resources indicated by the scheduling signal 330 to perform data transmission. In this way, the gNB 310 can dynamically schedule transmission resources to the Wi-Fi system according to the needs of the Wi-Fi access point 315, thereby avoiding conflicts and improving resource utilization efficiency.
- pilot signals there may be multiple first signals, such as request signals.
- the second signals indicate the initial transmission resources for the first signals, and subsequent transmission resources for the first signals repeat at predetermined periods after the initial transmission resources.
- pilot signals 405 and 410 there may be multiple request signals between pilot signals 405 and 410. Pilot signal 405 may indicate the transmission resources for request signal 415, and the transmission resources for request signals 415, 420, and 425 may repeat at predetermined periods.
- the pilot signals can efficiently and reliably indicate the transmission resources of multiple request signals, improving indication efficiency.
- the Wi-Fi access point 315 when it needs to transmit data again, it sends a request signal 340 (corresponding to request signal 420 in FIG. 4) at a certain time-frequency resource location. After detecting the request signal 340, the gNB 310 sends a scheduling signal 345 (343), which indicates the data transmission resources allocated to the Wi-Fi access point 315. At 350, the Wi-Fi access point 315 uses the resources indicated by the scheduling signal 345 to transmit data. In addition to the two request signals 320 and 340 shown in embodiment 300, the Wi-Fi access point 315 can send multiple request signals as needed between the two guiding signals, such as request signal 425 in FIG. 4, etc., which is not limited in this application. In this way, the gNB 310 can flexibly schedule the time-frequency resources of Wi-Fi, avoid interference, improve the QoS of the cellular system, and improve resource utilization.
- the third device can avoid detecting the channel on the transmission resources indicated by the second signal after detecting the second signal.
- the third device 120 of the UE can decode the pilot signal 320 to stop detecting the time-frequency resources of the request signals 325 and 340 to reduce power consumption.
- the third device can also stop detecting the resources scheduled to the second system by the scheduling signal after detecting the scheduling signal.
- the third device 120 can decode the pilot signal 320 and the request signals 325 and 340, and the scheduling signals 330 and 345 to stop detecting the resources scheduled to the Wi-Fi system by the scheduling signals 330 and 345, thereby reducing power consumption and improving battery life, for example, in power-sensitive scenarios such as IoT.
- the request signal can send 1 bit of information back to the gNB 310 to inform the gNB 310 of the resource demand for Wi-Fi services within its coverage area, thereby enabling on-demand requesting and allocation of wireless resources.
- a guard interval can be reserved in the front end of the request signal, and a timer GI and a propagation delay guard interval (GI) can be reserved in the back end.
- the transmitting end can transmit the signal using pulse energy modulation, while the receiving end can receive the signal using energy detection. In this way, interference caused by timer errors and propagation delays of the Wi-Fi AP can be avoided, ensuring reliable reception of the request signal and improving the reliability of the coexistence of cellular and Wi-Fi systems.
- the time-frequency resource for the first request signal is indicated by a pilot signal, and subsequent requests are repeated according to a period Tre agreed upon in the protocol.
- the gNB 310 will stop allocating resources to the Wi-Fi device until it fails to detect a request signal on a particular time-frequency resource. If a request signal is not detected for x consecutive times (x can be a predefined value), the gNB 310 releases the time-frequency resource for the request signal until the pilot signal is retransmitted in the next round. In this way, the gNB can efficiently schedule air interface resources, improve resource utilization efficiency, and avoid waste.
- the channel is not detected on the time-frequency resources of the requested signal or on the time-frequency resources allocated to Wi-Fi, thereby reducing power consumption. This can be applied to various scenarios such as IoT.
- Figure 5 illustrates a schematic diagram of the time-domain guard interval of the request signal in an embodiment of this application.
- 505 is a request signal sent by a transmitter, for example, a Wi-Fi access point 315
- 510 is a request signal received by a receiver, for example, a cellular network node gNB 310.
- Request signals 505 and 510 can be specific implementations of the first signal in Figure 2, or specific implementations of request signals 325 and 340 in Figure 3, and request signals 415, 420, and 425 in Figure 4.
- the first signal of the request signal can feed back a bit to the cellular base station 310, which is sent by the Wi-Fi AP 315 to inform the base station 310 of the demand for Wi-Fi service resources within its coverage area.
- the Wi-Fi AP 315 can clearly issue resource requests, and the gNB 310 can perform resource scheduling to prevent conflicts and improve resource utilization.
- the design of the request signal sent by the Wi-Fi AP 315 may take into account signal propagation delay and potential timer "drift" issues of the Wi-Fi access point device 315, such as timer "drift” caused by cheaper crystal oscillators.
- the Wi-Fi AP 315 can obtain downlink coarse synchronization through downlink signals broadcast by the gNB 310, such as the pilot signal 320.
- the timer of the Wi-Fi AP 315 itself may have timing errors.
- At least one of the front and back ends of the transmission resources of the first signal includes a timer guard interval, which is not less than the timer offset of the second device 115.
- the back end of the transmission resources of the first signal includes a propagation guard interval, which is not less than the propagation delay from the second device 115 to the first device 110.
- timer GI timer protection intervals
- a propagation protection interval can also be reserved at the end of the time-frequency resources for the request signal 505, with a length not less than the estimated maximum propagation delay, ensuring that no interference occurs within the coverage area of the first device 110, such as the gNB 315.
- the time-domain protection interval before the request signal 505 transmitted by the Wi-Fi AP 315 is a timer protection interval 525
- the time-domain protection interval after the request signal 505 is a timer protection interval plus a propagation protection interval 530.
- the request signal 505 transmitted by the Wi-Fi AP 315 becomes the request signal 510 received by the gNB 310. In this way, interference can be avoided when the timer of the second device has an offset, reducing the accuracy requirements of the timer of the second device, and interference caused by propagation delay can be avoided within the coverage area of the cellular system gNB, thus improving reliability.
- the transmission resources of the first signal include a frequency domain guard interval, which is not less than the frequency domain offset of the first signal.
- a frequency domain guard interval (not shown in FIG. 5) can be set on both sides of its frequency domain transmission resources, and the frequency domain guard interval is not less than the frequency domain offset of the request signal 505, thereby reducing the frequency accuracy requirements of the Wi-Fi AP 315 and improving reliability.
- Figure 6 shows a schematic diagram of pulse modulation and signal propagation of the request signal in an embodiment of this application.
- the transmitting request signal 605 and the receiving request signal 610 in embodiment 600 can be specific implementations of the "first signal" in Figure 2, corresponding to the request signals 325 and 340 in Figure 3, and respectively corresponding to the request signals 505 and 510 in Figure 5.
- a pulse modulation and energy detection scheme designed based on the coexistence of cellular and Wi-Fi can be used.
- a second device 115 modulates energy onto the transmission resources of the first signal based on pulse modulation. Specifically, the second device 115 modulates energy onto orthogonal frequency division multiplexing (OFDM) symbols and subcarriers within the non-guard interval region of the transmission resources based on its parameter set and RF transmit power constraints.
- the first device 110 detects the presence of transmission energy on the transmission resources of the first signal. Specifically, the first device 110 detects energy at multiple sampling points of the transmission resources based on its air interface parameters.
- the first device 110 calculates the total energy at the multiple sampling points and determines whether the energy is greater than an energy threshold.
- the second device 115 such as Wi-Fi AP 315, utilizes Wi-Fi air interface parameters (numerology) to modulate energy onto all OFDM symbols and subcarriers within the time-frequency resources of the request signal 605, within the non-guard interval region, while satisfying RF transmit power constraints.
- the request signal 605 sent by the Wi-Fi AP 315 after propagation delay plus timer uncertainty 610, yields the request signal 615 received by the gNB 310.
- the first device 110 of the gNB 310 performs energy detection, calculating the total energy of all sampling points within the time-frequency resources of the cellular system's request signal, according to the air interface parameters of the cellular system. If the energy is greater than a preset threshold t, then the gNB 310 is deemed to have successfully detected the request signal 615.
- the first device 110 of the gNB 310 can detect the first signal, such as the request signal, using a simple energy detection method, reducing computational complexity.
- Figure 7 shows a schematic diagram of overlapping multiple request signals in an embodiment of this application.
- the transmitting request signals 705 and 710 in Figure 7 correspond to request signal 505 in Figure 5 and request signal 605 in Figure 6.
- the receiving request signals 715 and 720 in Figure 7 correspond to request signal 510 in Figure 5 and request signal 615 in Figure 6.
- the request signal serves as a resource request from the Wi-Fi system to the cellular system
- the gNB 310 only needs to detect the existence of this one bit of the request; it is not necessary to distinguish how many Wi-Fi APs 315 or which specific Wi-Fi AP 315 sent the resource request.
- the specific use of the resources allocated to the Wi-Fi system by the Wi-Fi APs 315 can be coordinated internally within the Wi-Fi system. The solution in this embodiment can meet the requirement of multiple Wi-Fi APs 315 simultaneously sending request signals.
- the gNB 310 When multiple Wi-Fi APs 315 send energy pulses within this time-frequency resource, the gNB 310 has a greater probability of detecting that the total energy exceeds the threshold t within this time-frequency resource window, thus enabling more reliable detection of this one bit of the request signal.
- Wi-Fi AP1 sends a request signal 705, corresponding to the request signal 715 received by gNB 310.
- Wi-Fi AP2 sends a request signal 710, corresponding to the request signal 720 received by gNB.
- the received signals 715 and 720 overlap, and their total energy is greater than that of a single received signal 715 or 720. Therefore, the probability of gNB 310 detecting the request signal can be increased, allowing gNB 310 to allocate resources to the Wi-Fi system more reliably.
- FIG. 8 illustrates a schematic diagram of the scheduling signal scheduling Wi-Fi time-frequency resources in an embodiment of this application.
- Embodiment 800 shows the time-frequency resources of the request signal itself, i.e., where the request signal can be sent by the Wi-Fi AP 315 in the time-frequency resources.
- Embodiment 800 also shows the scheduling signal sent by the gNB 310 corresponding to the request signal, and the time-frequency resources of the Wi-Fi system scheduled by the scheduling signal that can be used for data transmission.
- a first device 110 of a first communication system sends a second signal to at least one second device 115 of a second communication system.
- the second signal indicates transmission resources for the first signal.
- the second signal can be repeatedly sent periodically.
- the first device 110 such as gNB 310
- periodically broadcasts a second signal such as pilot signals 805 and 850, with a period of Tg .
- the second device 115 such as Wi-Fi AP 315, can obtain coarse "downlink" synchronization through the pilot signal 805 broadcast by gNB 310. In this way, Wi-Fi AP 315 can quickly synchronize with gNB 310, avoid conflicts, and improve resource utilization.
- the second signal indicates the initial transmission resources for the first signal. Subsequent transmission resources for the first signal repeat at a predetermined period after the initial transmission resources. For example, the time-frequency resources of the first signal, such as the first request signal 810, following the second signal such as the pilot signal 805, can be indicated by the pilot signal 805. For subsequent request signals 825 and 840, the time-frequency resource positions are also periodically repeated at intervals of a predefined Tre . In this way, the time-frequency resources of the request signals can be efficiently indicated, which is beneficial for the Wi-Fi AP 315 to issue request signals and improves request efficiency.
- a first device 110 sends a scheduling signal to at least one second device 115 based on the detection of a first signal.
- the scheduling signal indicates the communication resources allocated by the first device 110 to the second communication system. For example, if the first device 110, such as gNB 310, successfully detects a first signal, such as a request signal 810, it sends a scheduling signal 815 to the Wi-Fi AP 315, indicating the scheduled Wi-Fi time-frequency resource 820.
- the Wi-Fi system can use the time-frequency resource 820 for data transmission. If the gNB 310 successfully detects a request signal 825, it sends a scheduling signal 830 to the Wi-Fi AP 315, indicating the scheduled Wi-Fi time-frequency resource 835.
- the Wi-Fi system can use the time-frequency resource 835 for data transmission. Until the gNB 310 does not detect a request signal 840 on the requested signal time-frequency resource, it indicates that there is no Wi-Fi resource demand in the system at this time, and therefore does not send a scheduling signal 845, and no longer allocates Wi-Fi scheduling resources. In this way, the gNB 310 can schedule resources according to the needs of the Wi-Fi system, ensure the resource priority of the cellular system, prevent conflicts, and improve resource utilization.
- the first device 110 releases subsequent periodic transmission resources for the first signal based on the fact that the first signal has not been detected on a first number of consecutive periodic transmission resources for the first signal, and the first number exceeds a threshold number. For example, if the gNB 310 does not detect the request signal for x consecutive times (x can be predefined or indicated in the pilot signals 805, 850), the request signal time-frequency resources are also released until the gNB 310 retransmits the pilot signal in the next round. In this way, in scenarios where the Wi-Fi system has no communication resource requirements for a long time, the allocation of request signal time-frequency resources can be saved as much as possible, the priority of the cellular system can be fully guaranteed, and the resource utilization efficiency can be improved.
- Figure 9 illustrates a schematic diagram of a user terminal not detecting the channel when time-frequency resources scheduled for Wi-Fi in an embodiment of this application.
- the cellular node gNB 905, the Wi-Fi node AP 910, and the cellular node UE 915 can be specific implementations of the first device 110, the second device 115, and the third device 120 in Figures 1 and 2, respectively.
- a third device 120 of the first communication system receives indication information from a first device 110 of the first communication system.
- This indication information indicates communication resources allocated by the first device to the second communication system.
- the third device 120 avoids performing channel detection on the communication resources.
- the third device 120 resumes performing channel detection.
- the third device 120 of a Wi-Fi node AP 910 detects a channel.
- a second device 115 of the Wi-Fi node AP 910 receives (923) a second signal, such as a pilot signal 925, sent by the first device 110 of a cellular node gNB 905.
- the Wi-Fi node AP 910 also receives the pilot signal 925.
- the pilot signal 925 indicates (926) the time-frequency resource location of a first signal, such as a request signal 930.
- the Wi-Fi node AP 910 sends (927) a request signal 930 at the time-frequency resource location indicated by the pilot signal 925 and receives (933) indication information, such as a scheduling signal 935.
- the Wi-Fi node AP 910 uses the time-frequency resources indicated by the scheduling signal 935 for data transmission.
- the third device 120 of the cellular node UE 915 receives the (928) request signal 930 and the (933) scheduling signal 935, thereby acquiring the time-frequency resources scheduled by the cellular node gNB 905 to the Wi-Fi node AP 910. Then, the cellular node UE 915 can stop detecting on the resources scheduled for Wi-Fi, thereby reducing power consumption. The cellular node UE 915 can also immediately resume channel detection after the resources scheduled for Wi-Fi end, improving service response speed.
- the cellular node UE 915 can also stop detecting the channel on the time-frequency resources indicated by the pilot signal 925 and the request signal 930, thereby reducing power consumption; and resume detection after the time-frequency resources of the request signal 930, improving service response speed.
- the indication information is received via a coexistence signal of the first and second communication systems, or via an indication signal in the first communication system.
- the cellular node gNB 905 can send resource indications scheduled for Wi-Fi to the Wi-Fi node AP 910 and the cellular node UE 915 via a coexistence signal, thereby saving air interface resources.
- the cellular node gNB 905 can separately schedule and indicate the Wi-Fi node AP 910 and the cellular node UE 915, thereby enabling more flexible scheduling.
- Figure 10 illustrates a processing flowchart of a first device 110 in a first communication system according to an embodiment of this application.
- the first device 110 of the first communication network monitors a first signal from at least one second device 115 of the second communication system.
- the first signal indicates that the second communication system has a demand for communication resources.
- the first communication system includes a cellular communication system
- the second communication system includes a Wi-Fi communication system. It will be understood that process 1000 may also include other operations implemented at the first device or cellular network gNB as described above with reference to Figures 2 to 9, which will not be repeated herein.
- FIG 11 illustrates a processing flowchart of the second device 115 of the second communication system in an embodiment of this application.
- the second device 115 of the second communication system determines whether the second communication system has a demand for communication resources. Then, at 1120, based on the determination that the second communication system has a demand for communication resources, the second device sends a first signal to the first device of the first communication system. The first signal is used to indicate that the second communication system has a demand for communication resources.
- the first communication system includes a cellular communication system, and the second communication system includes a Wi-Fi communication system. It will be understood that process 1100 may also include other operations implemented at the second device or Wi-Fi access point as described above with reference to Figures 2 to 9, which will not be repeated here.
- Figure 12 illustrates a processing flowchart of the third device 120 of the first communication system in an embodiment of this application.
- the third device 120 of the first communication system receives indication information from the first device 110 of the first communication system.
- the indication information is used to instruct the first device 110 to allocate communication resources to the second communication system.
- the third device 120 avoids performing channel detection on the communication resources.
- the first communication system includes a cellular communication system
- the second communication system includes a Wi-Fi communication system. It will be understood that process 1200 may also include other operations implemented at the third device or UE as described above with reference to Figures 2 to 9, which will not be repeated here.
- Figure 13 is a block diagram of a device 1300 that can be used to implement some embodiments of this application.
- a first device 110 of a first communication system, a second device 115 of a second communication system, and a third device 120 of a first communication system can be implemented in the device 1300, for example, they can be part of the device 1300.
- the first device 110, the second device 115, and the third device 120 can be implemented as a single chip, or a combination of several chips, or as hardware circuits, or partially implemented as hardware circuits and partially implemented as software, firmware, or other forms. This application does not limit the scope of implementation.
- device 1300 may be a component of a communications network infrastructure, such as a base station (e.g., a NodeB, an evolved NodeB (eNodeB or eNB), a next-generation NodeB (sometimes referred to as a gNodeB or gNB), a Home Subscriber Server (HSS), a gateway (GW), such as a Packet Gateway (PGW) or Serving Gateway (SGW), or various other nodes or functions within a core network (CN) or Public Land Mobile Network (PLMN).
- a base station e.g., a NodeB, an evolved NodeB (eNodeB or eNB), a next-generation NodeB (sometimes referred to as a gNodeB or gNB), a Home Subscriber Server (HSS), a gateway (GW), such as a Packet Gateway (PGW) or Serving Gateway (SGW), or various other nodes or functions within a core network (CN) or Public Land Mobile Network (PLMN).
- device 1300 may be Machine Type Communication (MTC).
- MTC Machine Type Communication
- a device also known as a machine-to-machine (M2M) device
- M2M machine-to-machine
- device 1300 may be a roadside unit (RSU), a vehicle UE (V-UE), a pedestrian UE (P-UE), or an infrastructure UE (I-UE).
- RSU roadside unit
- V-UE vehicle UE
- P-UE pedestrian UE
- I-UE infrastructure UE
- device 1300 may also be referred to as a mobile device, a term intended to reflect a device connected to a mobile network, regardless of whether the device itself is designed for or capable of being mobile.
- a particular device may utilize all or only a subset of the components shown, and the level of integration may vary with device 1300.
- device 1300 may contain multiple instances of components, such as multiple processors, memory, transmitters, receivers, etc.
- Device 1300 typically includes a processor 1302, such as a central processing unit (CPU), and may further include a dedicated processor, such as a graphics processing unit (GPU) or other such processor, memory 1304, a network interface 1306, and a bus 1308 for connecting the components of device 1300.
- a processor 1302 such as a central processing unit (CPU)
- GPU graphics processing unit
- memory 1304 such as a main memory
- network interface 1306 such as a graphics processing unit (GPU) or other such processor
- bus 1308 for connecting the components of device 1300.
- device 1300 may also include components such as a mass storage device 1310, a video adapter 1312, and an I/O interface 1316 (shown in dashed lines).
- Memory 1304 may include any type of non-transitory system memory readable by processor 1302, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), read-only memory (ROM), or combinations thereof.
- memory 1304 may include more than one type of memory, such as ROM used at boot time and DRAM used for program and data storage during program execution.
- Bus 1308 may be one or more of a plurality of bus architectures of any type, including a memory bus or memory controller, a peripheral bus, or a video bus.
- Device 1300 may also include one or more network interfaces 1306, which may include at least one of wired network interfaces and wireless network interfaces. As shown in FIG13, network interface 1306 may include a wired network interface for connecting to network 1322, and may also include a wireless access network interface 1320 for connecting to other devices via a wireless link. When device 1300 is a network infrastructure element, the wireless access network interface 1320 may be omitted for nodes or functions (e.g., base stations) that are elements of a PLMN rather than elements at the wireless edge. When device 1300 is infrastructure at the wireless edge of a network, both wired and wireless network interfaces may be included.
- network interfaces 1306 may include at least one of wired network interfaces and wireless network interfaces.
- network interface 1306 may include a wired network interface for connecting to network 1322, and may also include a wireless access network interface 1320 for connecting to other devices via a wireless link.
- the wireless access network interface 1320 may be omitted for nodes or functions (e.g.,
- the wireless access network interface 1320 may be present and may be supplemented by other wireless interfaces such as a WiFi network interface.
- Network interface 1306 allows device 1300 to communicate with remote entities such as those connected to network 1322.
- Mass storage 1310 may include any type of non-transitory storage device configured to store data, programs, and other information and make the data, programs, and other information accessible via bus 1308. Mass storage 1310 may include, for example, one or more of a solid-state drive, hard disk drive, disk drive, or optical disk drive. In some embodiments, mass storage 1310 may be located remotely from device 1300 and may be accessed using a network interface such as interface 1306. In the illustrated embodiment, mass storage 1310 is distinct from the memory 1304 that includes it, and mass storage 1310 typically performs storage tasks compatible with higher latency but typically provides low or no fluctuation. In some embodiments, mass storage 1310 may be integrated with heterogeneous memory 1304.
- Optional video adapter 1312 and I/O interface 1316 provide interfaces for coupling device 1300 to external input and output devices.
- input and output devices include a display 1314 coupled to video adapter 1312 and an I/O device 1318, such as a touchscreen, coupled to I/O interface 1316.
- Other devices may be coupled to device 1300 and may utilize additional or fewer interfaces.
- a serial interface such as Universal Serial Bus (USB) (not shown) may be used to provide interfaces for external devices.
- USB Universal Serial Bus
- Figure 14 is a schematic diagram of the structure of a device 1400 according to some embodiments of this application.
- device 1400 can be used to implement the first device 110 of the first communication system in the embodiments of this application.
- device 1400 includes a monitoring module 1402.
- Device 1400 can be applied to the communication system shown in Figure 1 and can implement any of the methods provided in the foregoing embodiments.
- the physical manifestation of the first device 1400 can be a communication device, such as a network device.
- device 1400 can be other devices capable of implementing the functions of a communication device, such as a processor or chip inside the communication device.
- device 1400 can be a programmable chip, such as a field-programmable gate array (FPGA), a complex programmable logic device (CPLD), an application-specific integrated circuit (ASIC), or a system on a chip (SOC).
- FPGA field-programmable gate array
- CPLD complex programmable logic device
- ASIC application-specific integrated circuit
- SOC system on a
- the monitoring module 1402 may be configured to monitor a first signal from at least one second device of a second communication system.
- the first signal indicates that the second communication system has a demand for communication resources.
- the first communication system includes a cellular communication system, and the second communication system includes a Wi-Fi communication system.
- the apparatus 1400 may include various other units or modules that can be configured to perform the various operations or functions described with respect to the foregoing method embodiments. Specific details can be obtained by referring to the detailed description of the foregoing method embodiments, and will not be repeated here.
- Figure 15 is a schematic diagram of the structure of a device 1500 according to some embodiments of this application.
- device 1500 can be used to implement a second device 115 of a second communication system in the embodiments of this application.
- device 1500 includes a determining module 1502 and a transmitting module 1504.
- Device 1500 can be applied to the communication system shown in Figure 1 and can implement any of the methods provided in the foregoing embodiments.
- the physical manifestation of device 1500 can be a communication device, such as a network device.
- device 1500 can be other devices capable of implementing the functions of a communication device, such as a processor or chip inside a communication device.
- device 1500 can be a programmable chip, such as a field-programmable gate array (FPGA), a complex programmable logic device (CPLD), an application-specific integrated circuit (ASIC), or a system-on-a-chip (SOC).
- FPGA field-programmable gate array
- CPLD complex programmable logic device
- ASIC application-specific integrated circuit
- SOC system-on-a-chip
- the determining module 1502 may be configured to determine whether the second communication system has a demand for communication resources.
- the sending module 1504 may be configured to send a first signal to a first device of the first communication system based on the determination that the second communication system has a demand for communication resources.
- the first signal is used to indicate that the second communication system has a demand for communication resources.
- the first communication system includes a cellular communication system, and the second communication system includes a Wi-Fi communication system.
- the apparatus 1500 may include various other units or modules that can be configured to perform the various operations or functions described with respect to the foregoing method embodiments. Specific details can be obtained by referring to the detailed description of the foregoing method embodiments, and will not be repeated here.
- Figure 16 is a schematic diagram of the structure of a device 1600 according to some embodiments of this application.
- device 1600 can be used to implement a third device 120 of the first communication system in the embodiments of this application.
- device 6800 includes a receiving module 1602 and an avoidance module 1604.
- Device 1600 can be applied to the communication system shown in Figure 1 and can implement any of the methods provided in the foregoing embodiments.
- the physical manifestation of device 1600 can be a communication device, such as a network device.
- device 1600 can be other devices capable of implementing the functions of a communication device, such as a processor or chip inside a communication device.
- device 1600 can be a programmable chip, such as a field-programmable gate array (FPGA), a complex programmable logic device (CPLD), an application-specific integrated circuit (ASIC), or a system-on-a-chip (SOC).
- FPGA field-programmable gate array
- CPLD complex programmable logic device
- ASIC application-specific integrated circuit
- SOC system-on-a-chip
- the receiving module 1602 may be configured to receive indication information from a first device of a first communication system.
- the indication information is used to indicate communication resources allocated by the first device to a second communication system.
- the avoidance module 1604 may be configured to avoid performing channel detection on the communication resources.
- the first communication system includes a cellular communication system
- the second communication system includes a Wi-Fi communication system.
- the apparatus 1600 may include various other units or modules that can be configured to perform the various operations or functions described with respect to the foregoing method embodiments. Specific details can be obtained by referring to the detailed description of the foregoing method embodiments, and will not be repeated here.
- module division in the above embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.
- the functional units in the various embodiments of this application can be integrated into one processing unit, exist as separate physical units, or be integrated into one unit by two or more units.
- the integrated units described above can be implemented in hardware or as software functional units.
- the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
- This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application.
- the aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
- this application also provides a computer program that, when run on a computer, causes the computer to execute any of the methods provided in the above embodiments.
- this application also provides a computer-readable storage medium storing a computer program.
- the computer program When executed by a computer, the computer program causes the computer to perform any of the methods provided in the above embodiments.
- the storage medium can be any available medium that can be accessed by a computer.
- a computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code having the form of instructions or data structures and that can be accessed by a computer.
- this application also provides a chip for reading a computer program stored in a memory and implementing any of the methods provided in the above embodiments.
- this application provides a chip system including a processor for supporting a computer device in implementing the functions involved in the communication devices in the above embodiments.
- the chip system further includes a memory for storing necessary programs and data of the computer device.
- This chip system may be composed of chips or may include chips and other discrete components.
- this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and/or one or more block diagrams.
- These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and/or one or more block diagrams.
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Abstract
本申请的实施例提供了一种用于通信的方法、设备、存储介质和程序产品。在该方法中,第一通信系统的第一设备监测来自第二通信系统的至少一个第二设备的第一信号。第一信号指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。如此,蜂窝系统可以根据Wi-Fi系统的需求向Wi-Fi系统分配资源,解决共存时的资源冲突,提高蜂窝系统的服务质量,提高空口资源利用效率。
Description
本申请要求于2024年6月14日提交国家知识产权局、申请号为202410774134.2、申请名称为“一种用于通信的方法、设备、存储介质和程序产品”的中国专利申请的优先权,其全部内容通过引用并入本申请中。
本申请的实施例总体上涉及通信领域,并且更具体地涉及一种用于通信的方法、装置、计算机可读存储介质以及计算机程序产品。
通信网络可以看作是实现两个或多个通信设备之间的通信或为通信设备提供对数据网络的访问的设施。移动或无线通信网络是通信网络的一个示例。这样的通信网络可以根据标准运行,例如由第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)或欧洲电信标准协会(European Telecommunications Standards Institute,ETSI)指定的标准。这样的标准的示例包括所谓的第五代(5th Generation,5G)标准或由3GPP或ETSI指定的其他标准。蜂窝通信系统和Wi-Fi系统的多系统共存环境还需要进一步地优化。
本申请的实施例提供一种用于通信的技术方案,尤其涉及一种关于共存资源请求指示的技术方案。
第一方面,提供了一种通信方法。该方法的执行主体可以是第一通信系统的第一设备,也可以是应用于第一设备中的芯片。下面以执行主体是第一通信系统的第一设备为例进行描述。在该方法中,第一通信系统的第一设备监测来自第二通信系统的至少一个第二设备的第一信号。第一信号指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。如此,蜂窝系统可以根据Wi-Fi系统的需求向Wi-Fi系统分配资源,解决共存时的资源冲突,提高蜂窝系统的服务质量(quality of service,QoS),提高空口资源利用效率。
在一些实现方式中,第一信号的传输资源的前段和后段中的至少一者包括定时器保护间隔,定时器保护间隔不小于第二设备的定时器偏移。如此,可以在第二设备的定时器具有偏移时避免干扰,降低对第二设备的定时器的精度要求,提高可靠性。
在一些实现方式中,第一信号的传输资源的后端包括传播保护间隔,传播保护间隔不小于第二设备到第一设备的传播时延。如此,可以在蜂窝系统gNB的覆盖范围内避免由于传播时延导致的干扰,提高可靠性。
在一些实现方式中,第一信号的传输资源包括频域保护间隔,频域保护间隔不小于第一信号的频域偏移。如此,避免第二设备和第一设备间的频率偏差导致的干扰,降低对第二设备的频偏估计要求,提高可靠性。
在一些实现方式中,第一设备监测第一信号包括:第一设备在第一信号的传输资源上检测是否存在传输能量。如此,第一设备可以用简单的能量检测方式检测例如请求信号的第一信号,降低计算复杂度。
在一些实现方式中,第一设备在传输资源上检测是否存在传输能量包括:第一设备基于第一设备的空口参数在传输资源的多个采样点上检测能量。进而,第一设备计算多个采样点上的总能量,并且确定该能量是否大于能量阈值。如此,第一设备可以采用适用于第一信号的时频域能量传输模式进行检测,提高对第一信号的检测准确性。
在一些实现方式中,第一设备还向第二通信系统的至少一个第二设备发送第二信号。第二信号指示用于第一信号的传输资源。如此,可以根据例如引导信号的第二信号指示例如请求信号的第一信号的传输资源,使得第二设备在存在数据传输需求时请求第一设备分配传输资源,解决冲突,提高蜂窝系统的服务质量,提高空口资源利用效率。
在一些实现方式中,第二信号周期性地重复被发送。如此,可以实现蜂窝gNB和Wi-Fi接入点间的快速、准确同步,并准确指示例如请求信号的第一信号的时频资源位置。
在一些实现方式中,第二信号指示用于第一信号的首次传输资源。第一信号的后续传输资源在首次传输资源后,以预定周期重复出现。如此,可以对第一信号的时频资源位置进行简单、直接的指示,减小对指示的资源开销。
在一些实现方式中,基于监测到第一信号,第一设备向至少一个第二设备发送调度信号,调度信号指示第一设备分配给第二通信系统的通信资源。如此,蜂窝系统可以对Wi-Fi系统的资源进行按需动态调度,优先保证蜂窝系统的QoS,提高空口资源利用效率。
在一些实现方式中,调度信号是第一通信系统和第二通信系统的共存信号,并且第一设备还向第一通信系统中的第三设备发送调度信号。如此,可以使得例如蜂窝系统用户设备(User Equipment,UE)的第三设备准确接收调度信号,从而避免UE继续检测(monitor)调度信号所指示的时频资源,节约功耗。
在一些实现方式中,第一设备还向第一通信系统中的第三设备发送指示信号。指示信号用于指示分配给第二通信系统的通信资源。如此,采用灵活的方式向例如蜂窝系统UE的第三设备通知通信资源,从而避免UE继续检测,节约功耗。
在一些实现方式中,第一设备基于在用于第一信号的连续第一数目个周期性传输资源上未监测到第一信号,并且第一数目超过阈值数目,则释放第一信号的后续周期性传输资源。如此,提高空口资源利用效率。
在一些实现方式中,阈值数目是预定义的,或者在用于指示周期性传输资源的第二信号中被指示。如此,可以用多种方式指示阈值数目,提高灵活性。
在一些实现方式中,第一设备包括基站,并且第三设备包括用户设备。附加的或替代的,第二设备包括接入点。如此,蜂窝系统的基站可以为Wi-Fi系统的接入点合理调度资源,同时实现蜂窝系统的用户设备的低功耗。
第二方面,提供了一种通信方法。该方法的执行主体可以是第二通信系统的第二设备,也可以是应用于第二设备中的芯片。下面以执行主体是第二通信系统的第二设备为例进行描述。在该方法中,第二通信系统的第二设备确定第二通信系统是否存在对通信资源的需求。进而,第二设备基于确定第二通信系统存在对通信资源的需求,向第一通信系统的第一设备发送第一信号。第一信号用于指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。如此,蜂窝系统可以根据Wi-Fi系统的需求向Wi-Fi系统分配资源,解决共存时的资源冲突,提高蜂窝系统的服务质量,提高空口资源利用效率。
在一些实现方式中,第一信号的传输资源的前段和后段中的至少一者包括定时器保护间隔,定时器保护间隔不小于第二设备的定时器偏移。如此,可以在第二设备的定时器具有偏移时避免干扰,降低对第二设备的定时器的精度要求,提高可靠性。
在一些实现方式中,第一信号的传输资源的后端包括传播保护间隔,传播保护间隔不小于第二设备到第一设备的传播时延。如此,可以在蜂窝系统gNB的覆盖范围内避免由于传播时延导致的干扰,提高可靠性。
在一些实现方式中,第一信号的传输资源包括频域保护间隔,频域保护间隔不小于第一信号的频域偏移。如此,避免第二设备和第一设备间的频率偏差导致的干扰,降低对第二设备的频偏估计要求,提高可靠性。
在一些实现方式中,第二设备发送第一信号包括:第二设备基于脉冲调制将能量调制到第一信号的传输资源上。如此,第一设备可以用简单的能量检测方式检测例如请求信号的第一信号,降低计算复杂度。
在一些实现方式中,第二设备将能量调制到第一信号的传输资源上包括:第二设备基于第二设备的参数集和射频发射功率约束,将能量调制到传输资源内的非保护间隔区域内的正交频分复用OFDM符号和子载波上。如此,第一设备可以用简单的能量检测方式检测例如请求信号的第一信号,降低计算复杂度。
在一些实现方式中,第二设备还从第一设备接收第二信号。第二信号指示用于第一信号的传输资源。如此,可以根据例如引导信号的第二信号指示例如请求信号的第一信号的传输资源,使得第二设备在存在数据传输需求时请求第一设备分配传输资源,解决冲突,提高蜂窝系统的服务质量,提高空口资源利用效率。
在一些实现方式中,第二信号周期性地重复出现。如此,可以实现蜂窝gNB和Wi-Fi接入点间的快速、准确同步,并准确指示例如请求信号的第一信号的时频资源位置。
在一些实现方式中,第二信号指示用于第一信号的首次传输资源。第一信号的后续传输资源在首次传输资源后,以预定周期重复出现。如此,可以对第一信号的时频资源位置进行简单、直接的指示,减小对指示的资源开销。
在一些实现方式中,第二设备还从第一设备接收调度信号。调度信号指示第一设备分配给第二通信系统的通信资源。如此,蜂窝系统可以对Wi-Fi系统的资源进行按需动态调度,优先保证蜂窝系统的QoS,提高空口资源利用效率。
在一些实现方式中,调度信号是第一通信系统和第二通信系统的共存信号。如此,可以在第一通信系统和第二通信系统间高效调度无线资源,保证蜂窝系统的QoS,防止干扰。
在一些实现方式中,第二设备在分配给第二通信系统的通信资源上执行通信。如此,给Wi-Fi分配的资源可以按需被蜂窝系统调度,实现共享无线资源的高效利用。
在一些实现方式中,第一设备包括基站。附加的或替代的,第二设备包括接入点。如此,蜂窝系统的基站可以为Wi-Fi系统的接入点合理调度资源,同时实现蜂窝系统的用户设备的低功耗。
第三方面,提供了一种通信方法。该方法的执行主体可以是第一通信系统的第三设备,也可以是应用于第三设备中的芯片。下面以执行主体是第一通信系统的第三设备为例进行描述。在该方法中,第一通信系统的第三设备从第一通信系统的第一设备接收指示信息,指示信息用于指示第一设备分配给第二通信系统的通信资源。进而,第三设备避免在通信资源上执行信道检测。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。如此,可以降低例如用户设备的第一通信系统的第三设备的功耗,适用于例如物联网(Internet of Things,IoT)的多种对功耗有较高要求的应用场景。
在一些实现方式中,指示信息经由第一通信系统和第二通信系统的共存信号而被接收。如此,采用共存信号进行指示,提高无效资源利用率。
在一些实现方式中,指示信息经由第一通信系统中的指示信号而被接收。如此,可以对指示信号进行单独指示,提高灵活性。
在一些实现方式中,第三设备在指示信息指示的通信资源之后,恢复执行信道检测。如此,提高对业务的响应速度,提高通信可靠性。
在一些实现方式中,第三设备监测第一设备向第二通信系统的至少一个第二设备发送的第二信号。第二信号指示用于第一信号的传输资源,第一信号用于指示第二通信系统存在对通信资源的需求。进而,第三设备避免在传输资源上执行信道检测。如此,可以降低例如用户设备的第一通信系统的第三设备的功耗,适用于例如IoT的多种应用场景。
在一些实现方式中,第一设备包括基站,并且第三设备包括用户设备。附加的或替代的,至少一个第二设备包括接入点。如此,蜂窝系统的基站可以为Wi-Fi系统的接入点合理调度无线空口资源,同时实现蜂窝系统的用户设备的低功耗。
第四方面,提供了一种第一通信系统的第一设备,第一通信系统的第一设备可以实现第一方面的方法。
第五方面,提供了一种第二通信系统的第二设备,第二通信系统的第二设备可以实现第一方面的方法。
第六方面,提供了一种第一通信系统的第三设备,第一通信系统的第三设备可以实现第三方面的方法。
第七方面,提供了一种通信设备,包括处理器、以及存储有指令的存储器。指令在被处理器执行时,使得通信设备执行第一方面、第二方面、或第三方面中的方法。
第八方面,提供了一种计算机可读存储介质,计算机可读存储介质存储有指令。指令在被通信设备执行时,使得通信设备执行第一方面、第二方面、或第三方面中的方法。
第九方面,提供了一种计算机程序产品,计算机程序产品包括指令。指令在被通信设备执行时,使得通信设备执行第一方面、第二方面、或第三方面中的方法。
第十方面,提供了一种芯片,芯片包括处理电路。处理电路被配置为执行第一方面、第二方面、或第三方面中的方法。
图1示出了本申请实施例可以在其中实现的一种通信系统。
图2示出了本申请实施例中多通信系统共存的信令图。
图3示出了本申请实施例中Wi-Fi接入点从蜂窝网节点请求资源的信令图。
图4示出了本申请实施例中引导信号指示请求信号时频资源的示意图。
图5示出了本申请实施例中请求信号的时域保护间隔的示意图。
图6示出了本申请实施例中请求信号的脉冲调制和信号传播的示意图。
图7示出了本申请实施例中多请求信号交叠的示意图。
图8示出了本申请实施例中调度信号调度Wi-Fi时频资源的示意图。
图9示出了本申请实施例中用户终端在调度给Wi-Fi的时频资源不检测信道的示意图。
图10示出了本申请实施例中第一通信系统的第一设备的处理流程图。
图11示出了本申请实施例中第二通信系统的第二设备的处理流程图。
图12示出了本申请实施例中第一通信系统的第三设备的处理流程图。
图13示出了本申请实施例中的设备的框图。
图14示出了本申请实施例中可以用于实现第一通信系统的第一设备的装置的结构示意图。
图15示出了本申请实施例中可以用于实现第二通信系统的第二设备的装置的结构示意图。
图16示出了本申请实施例中可以用于实现第一通信系统的第三设备的装置的结构示意图。
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法、功能描述等也可以应用于装置实施例或系统实施例中。
如上文所述,在例如蜂窝通信系统和Wi-Fi系统的多系统共存环境中,需要对共存的信号进行设计、优化。
全球关于6GHz(5925MHz-7125MHz)频段的业务划分大致分为三类。以美国、加拿大、巴西、韩国、沙特阿拉伯等国家和地区为代表,可以将6GHz全部作为非授权频段可供Wi-Fi使用。以欧盟、俄罗斯等国家和地区为代表,可以将6GHz频段分段使用,即将5925-6425MHz作为非授权频段可以开放给Wi-Fi使用,6425-7125MHz(U6G)频段的分配仍未下定论,目前倾向于让蜂窝以及Wi-Fi在此频段共存使用。以亚洲、非洲区域及很多一带一路国家为代表,未明确的6GHz分配政策,但倾向作为授权频段保留给5G/6G。中国则将U6G频段分配给3GPP(即5G以及未来的6G)使用。在此背景下,欧洲的不少政府以及标准化组织开始将U6G频谱的使用纳入议事日程。例如在ECC(Electronic Communications Committee)的会议上,多国政府以及多家企业参与到U6G频谱该如何使用的议题中。主要的观点可以分为两大类方案共存方案,即类似于5G新无线非授权(5G New Radio-Unlicensed,NR-U)的独立运行(Standalone)方案,以及基于共存信号的方案。关于蜂窝和Wi-Fi的共存可以分为两类,例如NR-U以及基于共存信号的方案。其他的方案可以划归到这两大类中去。NR-U可以让蜂窝设备和Wi-Fi设备共享频谱资源,主要的要求是蜂窝设备在发送前需进行类似于随机接入的信道接入流程,根据使用场景的不同,NR-U可以分为类型1(Type 1)和类型2(Type 2)两类。Type 1(“listen before talk(LBT)cat4”),主要用于发起一段信道占用时间(channel occupancy time,COT),通过检测信道状态、设置计数器回退的方式等待信道空闲。Type 2用于在同一段COT内部的多次发送之间。取决于发送间隔的不同,type 2的信道接入又分为三个不同的子类型(cat)。Type 2A(“LBT cat2”),主要用于间隔为25微秒,以及用于发现突发(Discovery Burst)的发送;Type 2B,发送间隔为16us;Type 2C(“LBT cat 1”),发送间隔小于16微秒。
共存信号的方案是在独立(standalone)方案的基础上引入蜂窝和Wi-Fi双方都能够检测到或者能够解码的信令,从而减少两个系统之间的冲突和干扰。其核心思想就是通过检测或解码跨技术方案的信令,各设备在此基础上自行授权(Self-authorized)访问共享介质,例如:Wi-Fi设备识别蜂窝信号,在此基础上使用可能的干扰规避机制。或者,蜂窝设备识别Wi-Fi信号,在此基础上使用可能的干扰规避机制。
从蜂窝的角度来看,此方案存在的主要问题是会严重影响蜂窝系统服务质量(QoS),且存在资源冲突的可能性,会浪费掉很多空口时频资源。有鉴于此,本申请的实施例提出一种由蜂窝的基站来主导和协调资源调度的共存方案,包括共存信令及流程设计,在Wi-Fi设备和蜂窝系统间实现共存和互通,避免干扰,提高蜂窝系统QoS。
具体而言,本申请的实施例提供一种用于通信的技术方案,其中例如Wi-Fi接入点(Access Point,AP)的第二通信系统中的第二设备确定第二通信系统是否存在对通信资源的需求。在存在通信需求的情况下,第二通信系统中的第二设备向例如蜂窝通信系统gNB的第一通信系统的第一设备发送例如指示信号的第一信号。第一信号指示第二通信系统存在对通信资源的需求。如此,蜂窝系统可以根据Wi-Fi系统的需求向Wi-Fi系统分配资源,解决共存时的资源冲突,提高蜂窝系统的服务质量,提高空口资源利用效率。第一信号可以指示例如请求信号的第二信号的传输资源。例如蜂窝系统用户设备(UE)的第一通信系统的第三设备从第一通信系统的第一设备接收指示信息。该指示信息用于指示第一设备分配给第二通信系统的通信资源。进而,第一通信系统的第三设备避免在通信资源上执行信道检测。如此,可以降低例如用户设备的第一通信系统的第三设备的功耗,适用于例如IoT的多种应用场景。本领域普通技术人员可以理解,第一通信系统也可以是卫星通信系统、集群通信系统或其他通信系统,第二通信系统可以是蓝牙、ZigBee等其他通信系统,本申请对此不作限定。
图1示出了本申请实施例可以在其中实现的一种通信系统。
在实施例100中,第一通信系统的第一设备110可以是蜂窝通信系统的基站,例如5G或未来通信系统中的gNB等。第二通信系统的第二设备115可以是Wi-Fi系统的接入点(AP)。第一通信系统的第三设备120可以是第一通信系统的用户设备(UE)。第一通信系统的第一设备110的服务区域为135,第二通信系统的第二设备115的服务区域为140。第一通信系统的第一设备110和第二通信系统的第二设备115通过链路145进行在相同频谱中共存的信令协调。在服务区域135中可以有多个UE,例如120、125。UE120、125不处于服务区域140中。因此,UE 120、125使用蜂窝系统的服务,而不使用Wi-Fi的服务。第一通信系统的第三设备120也可以实现为UE 130,处于服务区域135、140的交叠范围内。此时,UE130的蜂窝协议部分使用蜂窝系统的服务,而不使用Wi-Fi的服务。第一通信系统也可以是卫星通信系统、集群通信系统或其他通信系统,第二通信系统可以是蓝牙、ZigBee等其他通信系统,本申请对此不作限定。
本申请实施例中的无线通信系统100可以应用于5G移动通信系统的三大应用场景增强移动宽带(enhanced mobile broadband,eMBB),超高可靠性超低时延通信(ultra-reliable low-latency communication,URLLC)和增强型机器类通信(enhanced machine type communication,eMTC)等,或5G advanced或6G等通信系统场景。
应理解,以上无线通信系统既可适用于例如毫米波的高频场景(above 6G),也可适用于低频场景(sub 6G)。无线通信系统的应用场景包括但不限于第五代系统(5G)、新无线(new radio,NR)通信系统等现有通信系统或未来的演进的公共陆地移动网络(public land mobile network,PLMN)系统等。
以上所示第三设备120可以是终端设备,例如是用户设备(UE)、终端(terminal)、接入终端、终端单元、终端站、移动台(mobile station,MS)、远方站、远程终端、移动终端(mobile terminal)、无线通信设备、终端代理或终端设备等。第三设备120也可以是具有通信模块的通信芯片,也可以是具有通信功能的车辆,或者车载设备(如车载通信装置,车载通信芯片)等。该第三设备120可具备无线收发功能,其能够与一个或多个通信系统的一个或多个网络设备进行通信(如无线通信),并接受网络设备提供的网络服务,这里的网络设备包括但不限于图1所示的第一设备110。
其中,终端设备可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字处理(personal digital assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其他处理设备、车载设备、可穿戴设备、未来5G网络中的终端装置或者未来演进的PLMN中的终端装置等。
该终端设备120具体可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端、增强现实(augmented reality,AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(telemedicine)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
另外,终端设备120可以部署在陆地上,包括室内或室外、手持或车载;终端设备120也可以部署在水面上(如轮船等);终端设备120还可以部署在空中(例如飞机、气球和卫星上等)。网络设备可以是接入网设备(或称接入网站点)。其中,接入网设备是指有提供网络接入功能的设备,如无线接入网(radio access network,RAN)设备等等。例如第一设备110具体可包括基站(base station,BS),或包括基站以及用于控制基站的无线资源管理设备等。例如第一设备110还可包括中继站(比如中继设备)、接入点以及5G网络中的基站或者NR基站、未来演进的PLMN网络中的基站等。接入网设备(例如第一设备110)可以是可穿戴设备或车载设备。例如第一设备110也可以是具有通信模块的通信芯片。
比如,例如蜂窝系统接入网设备的第一设备110包括但不限于:5G中的基站(gnodeB,gNB)、长期演进(long term evolution,LTE)系统中的演进型节点B(evolved node B,eNB)、无线网络控制器(radio network controller,RNC)、云无线接入网络(cloud radio access network,CRAN)系统下的无线控制器、基站控制器(base station controller,BSC)、家庭基站(例如,home evolved nodeB,或home node B,HNB)、基带单元(baseBand unit,BBU)、传输点(transmitting and receiving point,TRP)、发射点(transmitting point,TP)、移动交换中心,还可以是LTE中的演进型(evolutional)NB(eNB或eNodeB),还可以是未来5G网络中的基站设备或者未来演进的PLMN网络中的接入网设备,还可以是可穿戴设备或车载设备。
在一些部署中,例如蜂窝系统接入网设备的第一设备110可以包括集中式单元(centralized unit,CU)和(distributed unit,DU)。网络设备还可以包括有源天线单元(active antenna unit,AAU)。CU实现网络设备的部分功能,DU实现网络设备的部分功能,比如,CU负责处理非实时协议和服务,实现无线资源控制(radio resource control,RRC),分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,实现无线链路控制(radio link control,RLC)层、媒体接入控制(media access control,MAC)层和物理(physical,PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU+AAU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外,可以将CU划分为接入网,例如无线接入网(RAN)中的网络设备,也可以将CU划分为核心网(core network,CN)中的网络设备,本申请对此不做限定。网络设备的示例包括但不限于节点B(NodeB或NB)、演进的NodeB(eNodeB或eNB)、下一代NodeB(gNB)、发送接收点(TRP)、远程无线电单元(RRU)、无线电头(RH)、远程无线电头(RRH)、IAB节点、低功率节点,诸如毫微微节点、微微节点、可重构智能表面(RIS)、网络控制的中继器等。
此外,例如作为蜂窝系统接入网设备的第一设备110可连接至核心网(core network,CN)设备,核心网设备可用于为第一设备110和终端设备120提供核心网服务。核心网设备在不同的系统下可对应不同的设备。比如在3G中核心网设备可以对应通用分组无线服务(general packet radio service,GPRS)的服务支持节点(serving GPRS support node,SGSN)和/或GPRS的网关支持节点(gateway GPRS support node,GGSN)。在4G中核心网设备可以对应移动管理实体(mobility management entity,MME)和/或服务网关(serving gateway,S-GW)。在5G中核心网设备可以对应接入和移动性管理功能(access and mobility management function,AMF)、会话管理功能(session management function,SMF)或者用户面功能(user plane function,UPF)等。
图2示出了本申请实施例中多通信系统共存的信令图。在实施例200中,第一通信网的第一设备110、第二通信网的第二设备115、第一通信网的第三设备120分别对应于图1中第一设备110、第二设备115、第三设备120。第一通信系统(即第一通信网)包括蜂窝通信系统,第二通信系统(即第二通信网)包括Wi-Fi通信系统。
在210,第一通信网的第一设备110监测第一信号,第一信号指示第二通信网存在对通信资源的需求。在215,第二通信网的第二设备115确定第二通信网是否存在对通信资源的需求。第二通信网的第二设备115向第一通信网的第一设备110发送(218)第一信号220。如此,Wi-Fi系统可以根据需求向蜂窝通信系统请求资源,解决共存时的资源冲突,提高蜂窝系统的服务质量,提高空口资源利用效率。第一通信网的第一设备110向第一通信网的第三设备120发送(223)指示信息225。指示信息225指示第一设备110分配给第二通信网的通信资源。进而,第三设备120避免在通信资源上执行信道检测。如此,可以降低例如用户设备的第一通信网的第三设备120的功耗,可以用于例如物联网(IoT)的多种低功耗应用场景。
图3示出了本申请实施例中Wi-Fi接入点从蜂窝网节点请求资源的信令图。图4示出了本申请实施例中引导信号指示请求信号时频资源的示意图。
在实施例300中,蜂窝网节点gNB 310、Wi-Fi接入点315分别是图1、图2中第一设备110、第二设备115的具体实现。Wi-Fi接入点315可以是一个,也可以是多个,Wi-Fi接入点315也可以是Wi-Fi站点(Station),本申请对此不作限定。
在一些实施例中,在317,Wi-Fi接入点315检测引导信号(guide signal)。蜂窝网节点gNB 310向Wi-Fi接入点315发送(318)例如引导信号320的第二信号。例如引导信号320的第二信号可以用于同步,以及指示例如请求信号(Request Signal)的第一信号的传输资源。引导信号320可以携带两个字段,即前导码字段和指示字段。前导码字段可以用于Wi-Fi接入点315与蜂窝系统的“下行”粗同步。指示字段用于给Wi-Fi接入点315指示(322)能用于发送请求信号325、340的时频资源。请求信号325、340对应于图2中的第一信号。如此,可以实现Wi-Fi系统和蜂窝系统之间的同步,并且gNB 310按照Wi-Fi接入点315的需求,向Wi-Fi系统分配资源,从而避免冲突,优先保证蜂窝系统的QoS,提高空口资源利用率。
在一些实施例中,第二信号可以被周期性发送。例如,引导信号320可以由gNB 310在频域固定位置使用协议约定的传输格式周期性广播,即图4中的引导信号405、410被周期性广播。如此,Wi-Fi接入点315可以快速捕获第二信号,实现和gNB 310的快速同步,并快速获取对请求信号的时频资源位置的指示。
在一些实施例中,在引导信号320指示的时频资源中,Wi-Fi接入点315发送(323)请求信号325,用于告知gNB 310在其覆盖的区域内存在Wi-Fi的频谱资源需求。对应于图4,引导信号405指示请求信号时频资源位置,Wi-Fi接入点315在此位置发送请求信号415。在一些实施例中,第一设备基于监测到第一信号,向至少一个第而设备发送调度信号。调度信号指示第一设备分配给第二通信系统的通信资源。例如,当gNB 305在请求信号资源位置检测到请求信号325(对应于图4中的请求信号415)时,则发送(328)调度信号330,进一步给Wi-Fi接入点315分配数据传输的时频资源。如gNB 310未在请求信号资源位置检测到请求信号325,则不发送调度信号330,即不给Wi-Fi分配资源。Wi-Fi接入点315接收到调度信号330后,在335使用调度信号330指示的资源进行数据传输。如此,gNB 310可以根据Wi-Fi接入点315的需求,向Wi-Fi系统动态调度传输资源,从而避免冲突,提高资源使用效率。
在一些实施例中,在两个例如引导信号的第二信号之间,可以有多个例如请求信号的第一信号。第二信号指示用于第一信号的首次传输资源,并且第一信号的后续传输资源在首次传输资源后,以预定周期重复出现。例如,在实施例400中,引导信号405、410之间可以有多个请求信号。引导信号405可以指示请求信号415的传输资源,而请求信号415、420、425的传输资源可以以预定周期重复出现。如此,引导信号可以高效、可靠地指示多个请求信号的传输资源,提高指示效率。
在一些实施例中,进一步的,当Wi-Fi接入点315再次需要传输数据,则在一定的时频资源位置发送(338)请求信号340(对应于图4中的请求信号420),gNB 310检测请求信号340后发送(343)调度信号345,调度信号345指示分配给Wi-Fi接入点315的数据传输资源。在350,Wi-Fi接入点315使用调度信号345指示的资源进行数据传输。除了实施例300中示出的2个请求信号320、340,Wi-Fi接入点315可以在两个引导信号间根据需求发送多次请求信号,例如图4中的请求信号425等,本申请对此不作限定。如此,gNB 310可以对Wi-Fi的时频资源进行灵活调度,避免干扰,提高蜂窝系统QoS,提高资源利用率。
在一些实施例中,第三设备可以在检测到第二信号后,避免在第二信号指示的传输资源上检测信道。例如,例如UE的第三设备120通过解码引导信号320,从而不再检测请求信号325、340的时频资源以降低功耗。第三设备也可以在检测到调度信号后,不再检测调度信号调度给第二系统的资源。具体的,第三设备120可以解码引导信号320和请求信号325、340、调度信号330、345,从而不再检测通过调度信号330、345调度给Wi-Fi系统的资源,以降低功耗,提高电池使用寿命,例如应用于IoT等功耗敏感性场景。
在一些实施例中,请求信号可以向gNB 310反馈1比特信息,用于告知gNB 310在其覆盖范围内有Wi-Fi业务的资源需求,从而实现对无线资源的按需请求、分配。
在一些实施例中,在请求信号的前段可以预留定时器保护间隔(guard interval,GI),后段预留定时器GI和传播时延保护间隔(propagation GI)。发端可以采用脉冲能量调制的方式发送信号,而收端可以使用能量检测的方式接收信号。如此,可以避免Wi-Fi AP的定时器误差和传播时延导致的干扰,实现请求信号的可靠接收,提高蜂窝系统和Wi-Fi系统共存的可靠性。
在一些实施例中,第一个请求信号的时频资源由引导信号指示,后续按照协议约定的周期Tr重复出现。直到gNB 310在某个请求信号时频资源上未检测到请求信号,则不再给Wi-Fi设备调度资源。如果连续x次(x可以是预定义数值)未检测到请求信号,则gNB 310释放请求信号的时频资源,直到下一轮重新发送引导信号。如此,gNB可以高效调度空口资源,提高资源使用效率,避免浪费。
在一些实施例中,在终端侧,例如UE的第三设备120在请求信号的时频资源,或在分配给Wi-Fi的时频资源上不检测信道,从而降低功耗,例如可以应用于IoT等多种场景。
图5示出了本申请实施例中请求信号的时域保护间隔的示意图。在实施例500中,505是例如Wi-Fi接入点315的发送端发送的请求信号,510是例如蜂窝网节点gNB 310的接收端接收的请求信号。请求信号505、510可以是图2中的第一信号的具体实现,也可以是图3中的请求信号325、340,图4中的请求信号415、420、425的具体实现。
在一些实施例中,例如请求信号的第一信号的可以向蜂窝基站310反馈一个比特,它由Wi-Fi AP 315发送,用于告知基站310在其覆盖范围内有Wi-Fi业务资源需求。如此,Wi-Fi AP 315可以清晰发出资源请求,并由gNB 310进行资源调度,防止冲突,提高资源利用率。
在一些实施例中,Wi-Fi AP 315发送的请求信号的设计,可以考虑信号传播延时以及可能的Wi-Fi接入点设备315的定时器“漂移”问题,例如由于较廉价的晶振而导致的Wi-Fi接入点设备的定时器“漂移”。具体来说,Wi-Fi AP 315可以通过gNB 310广播的下行信号,例如引导信号320获得下行的粗同步。但是Wi-Fi AP 315发送的请求信号505传播到基站310还有一个延时,并且Wi-Fi AP 315自身的定时器可能存在定时误差。因此,在一些实现方式中,第一信号的传输资源的前段和后段中的至少一者包括定时器保护间隔,定时器保护间隔不小于第二设备115的定时器偏移。第一信号的传输资源的后端包括传播保护间隔,传播保护间隔不小于第二设备115到第一设备110的传播时延。例如,处于发送端的、例如Wi-Fi AP 315的第二设备115在调度给它使用的请求信号时频资源内发送请求信号505时,前后都可以预留定时器保护间隔(timer GI),其值不小于最大可能的定时器偏移值。请求信号505的时频资源的后段还可以预留传播保护间隔(propagation GI),长度不小于预估的最大传播时延(propagation delay),即保证在例如gNB 315的第一设备110的覆盖范围内,都不会导致干扰。在图5中,Wi-Fi AP 315发送的请求信号505前部的时域保护间隔为定时器保护间隔525,后部的时域保护间隔为定时器保护间隔+传播保护间隔530。Wi-Fi AP 315发送的请求信号505经过传播时延+定时器不确定性535,得到gNB 310接收的请求信号510。如此,可以在第二设备的定时器具有偏移时避免干扰,降低对第二设备的定时器的精度要求,并且在蜂窝系统gNB的覆盖范围内避免由于传播时延导致的干扰,提高可靠性。
在一些实施例中,第一信号的传输资源包括频域保护间隔,频域保护间隔不小于第一信号的频域偏移。例如,对Wi-Fi AP 315发送的请求信号505,可以在其频域传输资源的两侧设定频域保护间隔(图5中未示出),频域保护间隔不小于请求信号505的频域偏移,从而降低对Wi-Fi AP 315的发送频率精度要求,提高可靠性。
图6示出了本申请实施例中请求信号的脉冲调制和信号传播的示意图。实施例600中的发送端请求信号605、接收端请求信号610可以是图2中的“第一信号”的具体实现,对应于图3中的请求信号325、340,并且分别对应于图5中的请求信号505、510。
在一些实施例中,对于例如请求信号325、340的第一信号,可以使用基于蜂窝与Wi-Fi的共存而设计的脉冲调制和能量检测方案。第二设备115基于脉冲调制将能量调制到第一信号的传输资源上。具体的,第二设备115基于第二设备115的参数集和射频发射功率约束,将能量调制到传输资源内的非保护间隔区域内的正交频分复用OFDM符号和子载波上。相应的,第一设备110在第一信号的传输资源上检测是否存在传输能量。具体的,第一设备110基于第一设备110的空口参数在传输资源的多个采样点上检测能量。进而,第一设备110计算多个采样点上的总能量,并且确定该能量是否大于能量阈值。例如,诸如Wi-Fi AP 315的第二设备115利用Wi-Fi的空口参数(numerology),在满足射频发射功率约束的前提下,将能量调制到请求信号605的时频资源内、非保护间隔区域内的所有OFDM符号和子载波上。Wi-Fi AP 315发送的请求信号605经传播时延+定时器不确定性610,得到gNB 310接收的请求信号615。例如gNB 310的第一设备110进行能量检测,在蜂窝系统的请求信号时频资源内,按照蜂窝系统的空口参数,计算所有采样点的总能量。如果能量大于某个预设的阈值t,则判定gNB 310成功检测到请求信号615。如此,例如gNB 310的第一设备110可以用简单的能量检测方式检测例如请求信号的第一信号,降低计算复杂度。
图7示出了本申请实施例中多请求信号交叠的示意图。图7中的发送端请求信号705、710对应于图5中的请求信号505、图6中的请求信号605。图7中的接收端请求信号715、720对应于图5中的请求信号510、图6中的请求信号615。
在一些实施例中,由于请求信号的作用是Wi-Fi系统向蜂窝系统反馈资源请求,所以当小区内有多个Wi-Fi AP 315都利用这个时频资源来反馈请求信号中的这一个比特的请求时,只要gNB 310能检测到这一个比特的请求存在即可,并不需要区分到底是几个Wi-Fi AP 315或者具体是哪一个Wi-Fi AP 315发送的资源请求。分配给Wi-Fi系统的资源由Wi-Fi AP 315具体如何使用,可以由Wi-Fi系统内部协调。本申请实施例的方案可以满足多个Wi-Fi AP315同时发送请求信号的需求。当有多个Wi-Fi AP315在这个时频资源内发送能量脉冲时,gNB 310在此时频资源窗口中有更大的概率检测到总能量大于阈值t,因此能够更可靠地检测到这一个比特的请求信号。
在实施例700中,Wi-Fi AP1发送请求信号705,对应于gNB 310接收的请求信号715。Wi-Fi AP2发送请求信号710,对应于gNB接收的请求信号720。接收信号715、720相互交叠,总能量比单个接收信号715或720大,因此可以提高gNB 310检测到请求信号的概率,从而gNB 310可以更可靠地为Wi-Fi系统分配资源。
图8示出了本申请实施例中调度信号调度Wi-Fi时频资源的示意图。实施例800示出了请求信号本身的时频资源,即请求信号在时频资源的什么位置可以被Wi-Fi AP 315发送。实施例800还示出了对应于请求信号,gNB 310发送的调度信号,以及调度信号所调度的Wi-Fi系统可用于数据传输的时频资源。
在一些实施例中,第一通信系统的第一设备110向第二通信系统的至少一个第二设备115发送第二信号,第二信号指示用于第一信号的传输资源。第二信号可以周期性地重复被发送。例如,在实施例800中,例如gNB 310的第一设备110以Tg为周期,周期性地广播发送例如引导信号805、850的第二信号。例如Wi-Fi AP 315的第二设备115可以通过gNB 310广播的引导信号805获得“下行”的粗同步。如此,Wi-Fi AP 315可以快速与gNB 310进行同步,避免冲突,提高资源利用率。
在一些实施例中,第二信号指示用于第一信号的首次传输资源。第一信号的后续传输资源在首次传输资源后,以预定周期重复出现。例如,在诸如引导信号805的第二信号之后的,例如第一个请求信号810的第一信号的时频资源可以由该引导信号805进行指示。对后续请求信号825、840,其时频资源位置均周期性重复出现,间隔周期为预定义的Tr。如此,可以高效的指示请求信号的时频资源,利于Wi-Fi AP 315发出请求信号,提高请求效率。
在一些实施例中,第一设备110基于监测到第一信号,向至少一个第二设备115发送调度信号。调度信号指示第一设备110分配给第二通信系统的通信资源。例如,诸如gNB 310的第一设备110成功检测到例如请求信号810的第一信号,则向Wi-Fi AP 315发送调度信号815,调度信号815指示被调度的Wi-Fi时频资源820。Wi-Fi系统可以使用时频资源820进行数据传输。gNB 310成功检测到请求信号825,则向Wi-Fi AP 315发送调度信号830,调度信号830指示被调度的Wi-Fi时频资源835。Wi-Fi系统可以使用时频资源835进行数据传输。直到gNB 310在请求信号时频资源上未检测到请求信号840,则表明此时系统内没有Wi-Fi资源需求,从而不发送调度信号845,不再给Wi-Fi调度资源。如此,gNB 310可以按照Wi-Fi系统的需求进行资源调度,保证蜂窝系统的资源优先级,防止冲突,提高资源利用率。
在一些实施例中,第一设备110基于在用于第一信号的连续第一数目个周期性传输资源上未监测到第一信号,并且第一数目超过阈值数目,则释放第一信号的后续周期性传输资源。例如,gNB 310如果连续x次(x可以是预定义的,也可以在引导信号805、850中指示)未检测到请求信号,则请求信号时频资源也被释放,直到gNB 310下一轮重新发送引导信号。如此,可以在Wi-Fi系统较长时间没有通信资源需求的场景中,尽量节约请求信号时频资源的分配,充分保证蜂窝系统的优先级,提高资源利用效率。
图9示出了本申请实施例中用户终端在调度给Wi-Fi的时频资源不检测信道的示意图。实施例900中,蜂窝节点gNB 905、Wi-Fi节点AP 910、蜂窝节点UE 915可以分别是图1、图2中的第一设备110、第二设备115、第三设备120的具体实现。
在一些实施例中,第一通信系统的第三设备120从第一通信系统的第一设备110接收指示信息,指示信息用于指示第一设备分配给第二通信系统的通信资源。进而,第三设备120避免在通信资源上执行信道检测。在指示信息指示的通信资源之后,第三设备120恢复执行信道检测。例如,在920,例如Wi-Fi节点AP 910的第三设备120检测信道。例如Wi-Fi节点AP 910的第二设备115接收(923)例如蜂窝节点gNB 905的第一设备110发送的、例如引导信号925的第二信号。Wi-Fi节点AP 910也接收引导信号925。引导信号925指示(926)例如请求信号930的第一信号的时频资源位置。Wi-Fi节点AP 910在引导信号925指示的时频资源位置发送(927)请求信号930,并接收(933)例如调度信号935的指示信息。在940,Wi-Fi节点AP 910使用调度信号935指示的时频资源进行数据传输。例如蜂窝节点UE 915的第三设备120接收(923)引导信号925后,接收(928)请求信号930,还接收(933)调度信号935,从而获取蜂窝节点gNB 905调度给Wi-Fi节点AP 910的时频资源。然后,蜂窝节点UE 915可以在调度给Wi-Fi的资源上不再检测,从而降低功耗。蜂窝节点UE 915也可以在调度给Wi-Fi的资源结束之后立刻恢复信道检测,提升业务响应速度。在一些实施例中,蜂窝节点UE 915也可以在引导信号925所指示的请求信号930的时频资源上停止检测信道,从而降低功耗;并在请求信号930的时频资源后恢复检测,提升业务响应速度。
在一些实施例中,指示信息经由第一通信系统和第二通信系统的共存信号而被接收,或者指示信息经由第一通信系统中的指示信号而被接收。例如,针对实施例900,蜂窝节点gNB 905可以通过共存信号,把调度给Wi-Fi的资源指示发送给Wi-Fi节点AP 910以及蜂窝节点UE 915,从而节约空口资源。或者,蜂窝节点gNB 905可以对Wi-Fi节点AP 910和蜂窝节点UE 915分开进行调度、指示,从而进行更加灵活的调度。
图10示出了本申请实施例中第一通信系统的第一设备110的处理流程图。在流程1000中,在1010,第一通信网的第一设备110监测来自第二通信系统的至少一个第二设备115的第一信号。第一信号指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。将理解,流程1000还可以包括上文参考图2至图9描述的在第一设备或蜂窝网gNB处实现的其他操作,本文不再赘述。
图11示出了本申请实施例中第二通信系统的第二设备115的处理流程图。在流程1100中,在1110,第二通信系统的第二设备115确定第二通信系统是否存在对通信资源的需求。进而,在1120,第二设备基于确定第二通信系统存在对通信资源的需求,向第一通信系统的第一设备发送第一信号。第一信号用于指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。将理解,流程1100还可以包括上文参考2至图9描述的在第二设备或Wi-Fi接入点处实现的其他操作,本文不再赘述。
图12示出了本申请实施例中第一通信系统的第三设备120的处理流程图。在流程1200中,在1210,第一通信系统的第三设备120从第一通信系统的第一设备110接收指示信息。指示信息用于指示第一设备110分配给第二通信系统的通信资源。进而,第三设备120避免在通信资源上执行信道检测。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。将理解,流程1200还可以包括上文参考图2至图9描述的在第三设备或UE处实现的其他操作,本文不再赘述。
图13是可以用于实现根据本申请的一些实施例的设备1300的框图,第一通信系统的第一设备110、第二通信系统的第二设备115、第一通信系统的第三设备120可以实现于设备1300之中,例如可以是设备1300的一部分。第一设备110、第二设备115、第三设备120可以实现为单个芯片,或若干芯片的组合,或者实现为硬件电路,或者部分以硬件电路实现,部分以软件、固件或其他形式实现,本申请对此不作限定。在一些实施例中,设备1300可以是通信网络基础设施的元件,诸如基站(例如,NodeB、演进型NodeB(eNodeB或eNB)、下一代NodeB(有时称为gNodeB或gNB)、归属用户服务器(HSS),网关(GW),诸如分组网关(PGW)或服务网关(SGW),或核心网(CN)或公共陆地移动网(PLMN)内的各种其他节点或功能。在其他实施例中,设备1300可以是通过无线接口连接到网络基础设施的设备,诸如移动电话、智能电话或可被分类为用户设备(UE)的其他此类设备。在一些实施例中,设备1300可以是机器类型通信(MTC)设备(也称为机器对机器(M2M)设备),或者尽管没有向用户提供直接服务,但可以被分类为UE的另一这样的设备。在一些实施例中,设备1300可以是路侧单元(RSU)、车辆UE(V-UE)、行人UE(P-UE)或基础设施UE(I-UE)。在一些场景中,设备1300还可被称为移动设备,该术语旨在反映连接到移动网络的设备,而不管该设备本身是否被设计用于或能够移动。特定设备可利用所示的所有组件或仅利用组件的子集,并且集成级别可以随设备1300而变化。此外,设备1300可以包含组件的多个实例,诸如多个处理器、存储器、发送器、接收器等。
设备1300通常包括处理器1302,诸如中央处理单元(CPU),并且可以进一步包括专用处理器,诸如图形处理单元(GPU)或其他这样的处理器、存储器1304、网络接口1306和总线1308,以连接设备1300的组件。可选地,设备1300还可以包括诸如大容量存储设备1310、视频适配器1312和I/O接口1316(以虚线示出)之类的组件。
存储器1304可以包括由处理器1302可读的任何类型的非暂时性系统存储器,诸如静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、同步DRAM(SDRAM)、只读存储器(ROM)或其组合。在一种实施例中,存储器1304可以包括一种以上类型的存储器,诸如在启动时使用的ROM,以及在执行程序时使用的用于程序和数据存储的DRAM。总线1308可以是包括存储器总线或存储器控制器、外围总线或视频总线的任意类型的多个总线架构中的一者或多者。
设备1300还可以包括一个或多个网络接口1306,其可以包括有线网络接口和无线网络接口中的至少一者。如图13所示,网络接口1306可以包括用于连接到网络1322的有线网络接口,并且还可以包括用于通过无线链路连接到其他设备的无线接入网络接口1320。当设备1300是网络基础设施元件时,对于作为PLMN的元件而不是在无线边缘的元件的节点或功能(例如,基站),可以省略无线接入网络接口1320。当设备1300是网络的无线边缘处的基础设施时,可以既包括有线也包括无线网络接口。当设备1300是无线连接的设备,诸如用户设备时,可以存在无线接入网络接口1320,并且可以由诸如WiFi网络接口的其他无线接口来补充。网络接口1306允许设备1300与诸如连接到网络1322的那些的远程实体通信。
大容量存储器1310可以包括被配置成存储数据、程序和其他信息并使数据、程序和其他信息可经由总线1308访问的任何类型的非暂时性存储设备。大容量存储器1310可以包括例如,固态驱动器、硬盘驱动器、磁盘驱动器或光盘驱动器中的一者或多者。在一些实施例中,大容量存储器1310可以远离设备1300,并且可以通过使用诸如接口1306的网络接口来访问。在所示的实施例中,大容量存储器1310不同于包括其的存储器1304,并且大容量存储器1310通常可以执行与更高延迟兼容的存储任务,但是通常可以提供较小的或没有波动。在一些实施例中,大容量存储器1310可以与异构存储器1304集成。
可选的视频适配器1312和I/O接口1316(以虚线示出)提供将设备1300耦合到外部输入和输出设备的接口。输入和输出设备的示例包括耦合到视频适配器1312的显示器1314和耦合到I/O接口1316的诸如触摸屏的I/O设备1318。其他设备可以耦合到设备1300,并且可以利用附加的或更少的接口。例如,诸如通用串行总线(USB)(未示出)的串行接口可用于为外部设备提供接口。本领域技术人员将理解,在设备1300是数据中心的一部分的实施例中,I/O接口1316和视频适配器1312可以被虚拟化并通过网络接口1306提供。
图14是根据本申请的一些实施例的装置1400的结构示意图。在一些示例中,装置1400可以用于实现本申请实施例中的第一通信系统的第一设备110。如图14所示,装置1400包括监测模块1402。装置1400可以应用于如图1所示的通信系统,并可以实现前文的实施例提供的方法中的任何方法。可选的,第一设备1400的物理表现形式可以为一种通信设备,例如网络设备。替换地,装置1400可以是能够实现通信设备的功能的其他装置,例如通信设备内部的处理器或芯片等。具体地,装置1400可以为可编程的芯片,诸如现场可编程门阵列(field-programmable gate array,FPGA)、复杂可编程逻辑器件(complex programmable logic device,CPLD)、专用集成电路(application specific integrated circuits,ASIC),或片上系统(System on a chip,SOC)等。
在一些实施例中,监测模块1402可以被配置为监测来自第二通信系统的至少一个第二设备的第一信号。第一信号指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。
在一些其他实施例中,装置1400可以包括各种其他单元或模块,这些单元或模块可以被配置为执行关于前述方法实施例描述的各种操作或功能。具体细节可以通过参考前述方法实施例的详细描述来获得,本文不再赘述。
图15是根据本申请的一些实施例的装置1500的结构示意图。在一些示例中,装置1500可以用于实现本申请实施例中的第二通信系统的第二设备115。如图15所示,装置1500包括确定模块1502和发送模块1504。装置1500可以应用于如图1所示的通信系统,并可以实现前文的实施例提供的方法中的任何方法。可选的,装置1500的物理表现形式可以为一种通信设备,例如网络设备。替换地,装置1500可以是能够实现通信设备的功能的其他装置,例如通信设备内部的处理器或芯片等。具体地,装置1500可以为可编程的芯片,诸如现场可编程门阵列(FPGA)、复杂可编程逻辑器件(CPLD)、专用集成电路(ASIC),或片上系统(SOC)等。
在一些实施例中,确定模块1502可以被配置为确定第二通信系统是否存在对通信资源的需求。发送模块1504可以被配置为基于确定第二通信系统存在对通信资源的需求,向第一通信系统的第一设备发送第一信号。第一信号用于指示第二通信系统存在对通信资源的需求。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。
在一些其他实施例中,装置1500可以包括各种其他单元或模块,这些单元或模块可以被配置为执行关于前述方法实施例描述的各种操作或功能。具体细节可以通过参考前述方法实施例的详细描述来获得,本文不再赘述。
图16是根据本申请的一些实施例的装置1600的结构示意图。在一些示例中,装置1600可以用于实现本申请实施例中的第一通信系统的第三设备120。如图16所示,装置6800包括接收模块1602和避免模块1604。装置1600可以应用于如图1所示的通信系统,并可以实现前文的实施例提供的方法中的任何方法。可选的,装置1600的物理表现形式可以为一种通信设备,例如网络设备。替换地,装置1600可以是能够实现通信设备的功能的其他装置,例如通信设备内部的处理器或芯片等。具体地,装置1600可以为可编程的芯片,诸如现场可编程门阵列(FPGA)、复杂可编程逻辑器件(CPLD)、专用集成电路(ASIC),或片上系统(SOC)等。
在一些实施例中,接收模块1602可以被配置为从第一通信系统的第一设备接收指示信息。指示信息用于指示第一设备分配给第二通信系统的通信资源。避免模块1604可以被配置为避免在通信资源上执行信道检测。第一通信系统包括蜂窝通信系统,第二通信系统包括Wi-Fi通信系统。
在一些其他实施例中,装置1600可以包括各种其他单元或模块,这些单元或模块可以被配置为执行关于前述方法实施例描述的各种操作或功能。具体细节可以通过参考前述方法实施例的详细描述来获得,本文不再赘述。
需要说明的是,本申请以上实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器执行本申请各个实施例方法的全部或部分步骤。前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
基于以上实施例,本申请实施例还提供了一种计算机程序,当计算机程序在计算机上运行时,使得计算机执行以上实施例提供的方法中的任何方法。
基于以上实施例,本申请实施例还提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序,计算机程序被计算机执行时,使得计算机执行以上实施例提供的方法中的任何方法。存储介质可以是计算机能够存取的任何可用介质。通过示例的方式但不限于:计算机可读介质可以包括RAM、ROM、EEPROM、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。
基于以上实施例,本申请实施例还提供了一种芯片,芯片用于读取存储器中存储的计算机程序,实现以上实施例提供的方法中的任何方法。
基于以上实施例,本申请实施例提供了一种芯片系统,该芯片系统包括处理器,用于支持计算机装置实现以上实施例中各通信设备所涉及的功能。在一种可能的设计中,芯片系统还包括存储器,存储器用于保存该计算机装置必要的程序和数据。该芯片系统,可以由芯片构成,也可以包含芯片和其他分立器件。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的保护范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。
Claims (31)
- 一种通信方法,包括:在第一通信系统的第一设备处,监测来自第二通信系统的至少一个第二设备的第一信号,其中所述第一信号指示所述第二通信系统存在对通信资源的需求,其中所述第一通信系统包括蜂窝通信系统,所述第二通信系统包括Wi-Fi通信系统。
- 根据权利要求1中任一项所述的方法,还包括:向所述第二通信系统的所述至少一个第二设备发送第二信号,所述第二信号指示用于所述第一信号的传输资源。
- 根据权利要求2所述的方法,其中所述第二信号周期性地重复被发送。
- 根据权利要求2或3所述的方法,其中:所述第二信号指示用于所述第一信号的首次传输资源;并且所述第一信号的后续传输资源在所述首次传输资源后,以预定周期重复出现。
- 根据权利要求1-4中任一项所述的方法,还包括:基于监测到所述第一信号,向所述至少一个第二设备发送调度信号,所述调度信号指示所述第一设备分配给所述第二通信系统的通信资源。
- 根据权利要求5所述的方法,其中所述调度信号是所述第一通信系统和所述第二通信系统的共存信号,并且所述方法还包括:向所述第一通信系统中的第三设备发送所述调度信号。
- 根据权利要求5所述的方法,还包括:向所述第一通信系统中的第三设备发送指示信号,所述指示信号用于指示分配给所述第二通信系统的所述通信资源。
- 根据权利要求1-4中任一项所述的方法,还包括:基于在用于所述第一信号的连续第一数目个周期性传输资源上未监测到所述第一信号,并且所述第一数目超过阈值数目,释放所述第一信号的后续周期性传输资源,其中所述阈值数目是预定义的,或者在用于指示所述周期性传输资源的第二信号中被指示。
- 根据权利要求1-8中任一项所述的方法,其中以下至少一项:所述第一设备包括基站,并且所述第三设备包括用户设备;或者所述第二设备包括接入点。
- 一种通信方法,包括:在第二通信系统的第二设备处,确定所述第二通信系统是否存在对通信资源的需求;以及基于确定所述第二通信系统存在对所述通信资源的需求,向第一通信系统的第一设备发送第一信号,其中所述第一信号用于指示所述第二通信系统存在对所述通信资源的需求,其中所述第一通信系统包括蜂窝通信系统,所述第二通信系统包括Wi-Fi通信系统。
- 根据权利要求10所述的方法,还包括:从所述第一设备接收第二信号,所述第二信号指示用于所述第一信号的传输资源。
- 根据权利要求11所述的方法,其中所述第二信号周期性地重复出现。
- 根据权利要求11或12所述的方法,其中:所述第二信号指示用于所述第一信号的首次传输资源;并且所述第一信号的后续传输资源在所述首次传输资源后,以预定周期重复出现。
- 根据权利要求10-13中任一项所述的方法,还包括:从所述第一设备接收调度信号,所述调度信号指示所述第一设备分配给所述第二通信系统的通信资源。
- 根据权利要求14所述的方法,其中所述调度信号是所述第一通信系统和所述第二通信系统的共存信号。
- 根据权利要求14或15所述的方法,还包括:在分配给所述第二通信系统的所述通信资源上执行通信。
- 根据权利要求10-16中任一项所述的方法,其中以下至少一项:所述第一设备包括基站;或者所述第二设备包括接入点。
- 一种通信方法,包括:在第一通信系统的第三设备处,从所述第一通信系统的第一设备接收指示信息,所述指示信息用于指示所述第一设备分配给所述第二通信系统的通信资源;以及避免在所述通信资源上执行信道检测,其中所述第一通信系统包括蜂窝通信系统,所述第二通信系统包括Wi-Fi通信系统。
- 根据权利要求18所述的方法,其中:所述指示信息经由所述第一通信系统和所述第二通信系统的共存信号而被接收。
- 根据权利要求18所述的方法,其中:所述指示信息经由所述第一通信系统中的指示信号而被接收。
- 根据权利要求18-20中任一项所述的方法,还包括:在所述指示信息指示的所述通信资源之后,恢复执行信道检测。
- 根据权利要求18-21中任一项所述的方法,还包括:监测所述第一设备向所述第二通信系统的至少一个第二设备发送的第二信号,所述第二信号指示用于第一信号的传输资源,所述第一信号用于指示所述第二通信系统存在对通信资源的需求;以及避免在所述传输资源上执行信道检测。
- 根据权利要求18-22中任一项所述的方法,其中以下至少一项:所述第一设备包括基站,并且所述第三设备包括用户设备;或者所述至少一个第二设备包括接入点。
- 一种第一通信系统的第一设备,用于实现权利要求1-9中任一项所述的方法。
- 一种第二通信系统的第二设备,用于实现权利要求10-17中任一项所述的方法。
- 一种第一通信系统的第三设备,用于实现权利要求18-23中任一项所述的方法。
- 一种通信装置,包括:处理器,所述处理器与存储有指令的存储器耦合,所述指令在被所述处理器执行时,使得所述通信设备执行根据权利要求1至23中任一项所述的方法。
- 根据权利要求27所述的通信装置,还包括所述存储器。
- 一种计算机可读存储介质,所述计算机可读存储介质存储有指令,所述指令在被通信装置执行时使得所述通信装置执行根据权利要求1至23中任一项所述的方法。
- 一种计算机程序产品,所述计算机程序产品包括指令,所述指令在被通信设备执行时使得所述通信设备执行根据权利要求1至23中任一项所述的方法。
- 一种芯片,所述芯片包括处理电路,所述处理电路被配置为执行根据权利要求1至23中任一项所述的方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410774134.2 | 2024-06-14 | ||
| CN202410774134.2A CN121152026A (zh) | 2024-06-14 | 2024-06-14 | 一种用于通信的方法、设备、存储介质和程序产品 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3035758A1 (en) * | 2014-12-15 | 2016-06-22 | Alcatel Lucent | Coexistence of cellular and non-cellular systems |
| US20230074107A1 (en) * | 2021-08-30 | 2023-03-09 | ANDRO Computation Solutions, LLC | System and methodology for secure coexistence between wireless fidelity and cellular networks |
| US20230362898A1 (en) * | 2022-05-03 | 2023-11-09 | Samsung Electronics Co., Ltd. | Sensing resource configuration and coexistence handling in cellular systems |
| US20240015776A1 (en) * | 2022-07-08 | 2024-01-11 | Cisco Technology, Inc. | Avoiding cellular co-existence interference in a wi-fi network |
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- 2024-06-14 CN CN202410774134.2A patent/CN121152026A/zh active Pending
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3035758A1 (en) * | 2014-12-15 | 2016-06-22 | Alcatel Lucent | Coexistence of cellular and non-cellular systems |
| US20230074107A1 (en) * | 2021-08-30 | 2023-03-09 | ANDRO Computation Solutions, LLC | System and methodology for secure coexistence between wireless fidelity and cellular networks |
| US20230362898A1 (en) * | 2022-05-03 | 2023-11-09 | Samsung Electronics Co., Ltd. | Sensing resource configuration and coexistence handling in cellular systems |
| US20240015776A1 (en) * | 2022-07-08 | 2024-01-11 | Cisco Technology, Inc. | Avoiding cellular co-existence interference in a wi-fi network |
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| CN121152026A (zh) | 2025-12-16 |
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