WO2021134382A1 - Procédé et dispositif d'indication de ressources, et système - Google Patents

Procédé et dispositif d'indication de ressources, et système Download PDF

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Publication number
WO2021134382A1
WO2021134382A1 PCT/CN2019/130256 CN2019130256W WO2021134382A1 WO 2021134382 A1 WO2021134382 A1 WO 2021134382A1 CN 2019130256 W CN2019130256 W CN 2019130256W WO 2021134382 A1 WO2021134382 A1 WO 2021134382A1
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Prior art keywords
frequency domain
resource
index
frequency
logical index
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PCT/CN2019/130256
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English (en)
Chinese (zh)
Inventor
何朗
李少华
侯凡凡
夏文悦
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201980103257.0A priority Critical patent/CN114846872A/zh
Priority to PCT/CN2019/130256 priority patent/WO2021134382A1/fr
Publication of WO2021134382A1 publication Critical patent/WO2021134382A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the communication field, and more specifically, to a method and device for resource indication in the communication field.
  • Discrete narrowband communication technology is a narrowband aggregation system designed for discontinuous spectrum resources, that is, a plurality of discontinuous narrowband spectrums on the broadband spectrum are aggregated and used. Through discrete narrowband communication technology, it is possible to achieve broadbandization of discrete narrowband resources, increase terminal bandwidth capabilities, and meet high-speed data service requirements.
  • the discrete narrowband cellular communication system When the discrete narrowband cellular communication system is scheduled, the more narrowband spectrum is aggregated, the higher the transmission rate will be.
  • the physical carriers are mapped one by one to the logical carrier index in a low-to-high manner.
  • scheduling is performed based on the logical carrier index.
  • the control information indicates the starting position and the number of logical carriers for data transmission or reception. Therefore, when a certain carrier has large interference, the access network equipment does not want to use the carrier to send or receive data.
  • the logical carrier resources are continuously allocated, and the unscheduled interference of the carrier causes the available logical carriers to be discontinuous, which limits the number of continuously scheduled carriers, thereby reducing the data transmission rate.
  • the present application provides a resource indication method, related device, and system, which can support the scheduling of large bandwidth of discrete physical resources through continuous logical resource index allocation, and improve the utilization rate of system resources.
  • this application provides a resource indication method, which is applied to the side of the access network device.
  • the method includes:
  • the access network device sends a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource.
  • the first frequency domain resource logical index includes a first set and a second set.
  • the logical index of frequency domain resources included in any one of the first set and the second set is a continuous index.
  • the frequency domain physical resources corresponding to the frequency domain resource logical index in the first set and the frequency domain physical resources corresponding to the frequency domain resource logical index in the second set are interleaved and arranged in the frequency domain. Any one frequency domain resource logical index included in the first set is different from any one frequency domain resource logical index included in the second set.
  • the access network device sends instruction information, where the instruction information indicates the second frequency domain resource logical index.
  • the indication information indicates the second frequency domain resource logical index.
  • the first set includes the second frequency domain resource logical index or the second set includes the second frequency domain resource logical index. In other words, one of the first set and the second set includes the second frequency domain resource logical index.
  • the second logical index of the frequency domain resource is a continuous index.
  • the second frequency domain resource logical index corresponds to the second frequency domain physical resource in a one-to-one correspondence.
  • the access network device receives data on the second frequency domain physical resource.
  • this application provides a resource indication method, which is applied to the terminal device side.
  • the method includes:
  • the terminal device receives a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource.
  • the first logical frequency domain resource index includes a first set and a second set.
  • the logical indexes of frequency domain resources included in the first set are consecutive indexes.
  • the logical indexes of frequency domain resources included in the second set are also continuous indexes.
  • the frequency domain physical resources corresponding to the frequency domain resource logical index in the first set and the frequency domain physical resources corresponding to the frequency domain resource logical index in the second set are interleaved and arranged in the frequency domain. Any one frequency domain resource logical index included in the first set is different from any one frequency domain resource logical index included in the second set.
  • the terminal device receives indication information, the indication information indicating the second frequency domain resource logical index.
  • the first set includes the second frequency domain resource logical index.
  • the second set includes the second frequency domain resource logical index.
  • the second logical index of the frequency domain resource is a continuous index.
  • the second frequency domain resource logical index corresponds to the second frequency domain physical resource in a one-to-one correspondence.
  • the terminal device transmits data on the second frequency domain physical resource.
  • this application provides a communication device.
  • the communication device may be an access network device or a chip in the access network device.
  • the communication device includes:
  • the sending unit is configured to send a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource.
  • the first frequency domain resource logical index includes a first set and a second set.
  • the frequency domain resource logical index included in the first set is a continuous index
  • the frequency domain resource logical index included in the second set is a continuous index.
  • the frequency domain physical resources corresponding to the frequency domain resource logical index in the first set and the frequency domain physical resources corresponding to the frequency domain resource logical index in the second set are interleaved and arranged in the frequency domain. Any one frequency domain resource logical index included in the first set is different from any one frequency domain resource logical index included in the second set.
  • the sending unit is also used to send instruction information.
  • the indication information indicates the second frequency domain resource logical index.
  • the first set includes the second frequency domain resource logical index or the second set includes the second frequency domain resource logical index.
  • the second frequency domain resource logical index is a continuous index, and the second frequency domain resource logical index has a one-to-one correspondence with the second frequency domain physical resource.
  • the communication device includes a receiving unit, configured to receive data on the second frequency domain physical resource.
  • this application provides a communication device.
  • the communication device may be a terminal device or a chip in the terminal device.
  • the communication device includes: a receiving unit, and a one-to-one correspondence between a first frequency domain resource logical index and a first frequency domain physical resource.
  • the first frequency domain resource logical index includes a first set and a second set.
  • the logical indexes of frequency domain resources included in the first set are consecutive indexes.
  • the logical indexes of frequency domain resources included in the second set are consecutive indexes.
  • the frequency domain physical resources corresponding to the frequency domain resource logical index in the first set and the frequency domain physical resources corresponding to the frequency domain resource logical index in the second set are interleaved and arranged in the frequency domain. Any one frequency domain resource logical index included in the first set is different from any one frequency domain resource logical index included in the second set.
  • the receiving unit is also used to receive instruction information.
  • the indication information indicates the second frequency domain resource logical index.
  • the first set includes the second frequency domain resource logical index or the second set includes the second frequency domain resource logical index.
  • the second frequency domain resource logical index is a continuous index, and the second frequency domain resource logical index has a one-to-one correspondence with the second frequency domain physical resource.
  • the communication device further includes a sending unit, configured to send data on the second frequency domain physical resource.
  • the one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource includes:
  • the first frequency domain resource logical index corresponds to the frequency domain physical resources with channel quality from high to low in the first frequency domain physical resources one by one in a descending order.
  • the first frequency domain resource logical index corresponds to the frequency domain physical resources of the first frequency domain physical resources with channel quality from low to high in a descending order one by one.
  • the channel quality of the frequency domain physical resource corresponding to any one of the frequency domain resource logical indexes included in the first set is lower than the threshold value.
  • the channel quality of the frequency domain physical resource corresponding to any one frequency domain resource logical index included in the second set is not lower than the threshold value.
  • the data is received or sent on the second frequency domain physical resource in a frequency hopping manner, and the frequency hopping manner includes single carrier frequency hopping and group frequency hopping.
  • a frequency domain frequency hopping unit of single carrier frequency hopping is a frequency domain physical resource
  • a frequency domain frequency hopping unit of group frequency hopping is a plurality of frequency domain physical resources.
  • the frequency domain physical resource corresponding to any one frequency domain resource logical index included in the first set belongs to the frequency domain physical resource of single carrier frequency hopping.
  • the frequency domain physical resource corresponding to any one of the frequency domain resource logical indexes included in the second set belongs to the frequency domain physical resource of group frequency hopping.
  • one frequency domain physical resource is one carrier.
  • the present application provides a chip that may include an input interface, an output interface, at least one processor, and at least one memory, the at least one memory is used to store code, and the at least one processor is used to execute all When the code in the memory is executed, the chip implements the method provided in the first aspect.
  • the present application provides a chip that may include an input interface, an output interface, at least one processor, and at least one memory, the at least one memory is used to store code, and the at least one processor is used to execute all When the code in the memory is executed, the chip implements the method provided in the second aspect.
  • a computer-readable storage medium stores instructions for implementing the method provided in the first aspect, and when the instruction is executed, the method provided in the first aspect is executed .
  • a computer-readable storage medium stores instructions for implementing the method provided in the second aspect, and when the instruction is executed, the method provided in the second aspect is executed.
  • this application provides a wireless communication system, including a terminal device and an access network device, wherein: the terminal can be used to execute the method provided in the second aspect; the access network device can be used to execute the first The method provided by the aspect.
  • the present application provides a processor, the processor is coupled with a memory, and the memory stores code.
  • the processor executes the code, the method provided in the first aspect is executed, or the method provided in the second aspect is executed.
  • the access network device when the access network device performs resource scheduling when the access network device performs continuous logical carrier indexing for the terminal device when the access network device performs continuous logical carrier indexing, more resources can be allocated, thereby increasing the terminal transmission rate, Reduce terminal transmission delay and improve spectrum resource utilization.
  • Figure 1a is a schematic diagram of a wireless communication system provided by an embodiment of the application.
  • Fig. 1b is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • Figure 1c is a schematic structural diagram of an access network device provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of an effective carrier provided by an embodiment of the application.
  • FIG. 3 is a flowchart of the access network device receiving data from the terminal device according to an embodiment of the application
  • FIG. 4 is a schematic diagram of the corresponding relationship between the frequency domain resource logical index and the frequency domain physical resource index provided by an embodiment of the application;
  • Figure 5 is a flow chart for the access network equipment to determine the channel quality
  • Figure 6 is a schematic diagram of group frequency hopping and single carrier frequency hopping
  • Figure 7 shows the mapping from logical carrier index to physical carrier when both group frequency hopping and single carrier frequency hopping exist.
  • FIG. 8 is a flowchart of the access network device sending data to the terminal device according to an embodiment of the application
  • Figure 9 is a flow chart of a network-connected device receiving channel quality information
  • FIG. 10 is a schematic structural diagram of a device provided by this application.
  • FIG. 11 is a schematic structural diagram of another device provided by this application.
  • FIG. 12 is a schematic structural diagram of another device provided by this application.
  • Discrete Spectrum Aggregation Due to the development of communication standards and industry requirements, spectrum resources are divided. Among them, the bandwidth of each frequency point of the discrete spectrum is relatively small and can only provide lower rate access. If the terminal uses the discrete spectrum to communicate with access network equipment (such as a base station), it cannot meet the communication requirements of the terminal for high-speed data services. In order to meet the communication requirements of the terminal's high-speed data services, carrier aggregation (CA) technology (or discrete narrowband communication technology) is proposed, for example, two or more discrete component carriers (CC) are aggregated and allocated together For the terminal, to support the terminal to transmit data services on a larger transmission bandwidth to meet the communication requirements of high-speed data services.
  • CA carrier aggregation
  • CC discrete component carriers
  • Physical carrier index (absolute physical carrier index): the index of the physical frequency point itself.
  • One physical carrier index corresponds to one physical carrier (or one frequency domain physical resource).
  • Logical carrier index carrier number, logical carrier index and physical carrier index (or physical carrier or frequency domain physical resource) have a one-to-one correspondence (or one-to-one mapping) relationship.
  • a frequency domain physical resource may be a physical resource block (PRB) in the frequency domain.
  • PRB physical resource block
  • a frequency domain physical resource can also be a carrier.
  • a frequency domain physical resource is a carrier of a narrowband system. In the power private network system, the bandwidth of a carrier is 25kHz. In other words, one frequency domain physical resource may be one of the carriers available in the narrowband system.
  • Carrier-based frequency hopping Frequency hopping based on a single carrier.
  • the basic unit of frequency hopping is based on the carrier.
  • Carrier-group based frequency hopping Frequency hopping based on a group of carriers.
  • a group of carriers includes multiple carriers. For example, a group of carriers has 3 carriers.
  • the basic unit of frequency hopping is based on a group of carriers.
  • Time unit In this application, the length of a time unit can be set arbitrarily, and there is no restriction here.
  • 1 time unit may include one or more subframes.
  • 1 time unit may include one or more time slots.
  • 1 time unit may include one or more mini-slots.
  • 1 time unit may include one or more symbols.
  • one time unit may include one or more transmission time intervals (Transmission Time Interval, TTI).
  • TTI Transmission Time Interval
  • one time unit may include one or more short transmission time intervals (short Transmission Time Interval, sTTI).
  • short Transmission Time Interval sTTI
  • one time unit may correspond to one time mode, for example, the first time mode is a transmission time interval of 2 symbols or 3 symbols, and the second mode is a transmission time interval of 7 symbols.
  • the mini time slot includes one or more symbols, and the mini time slot is less than or equal to the time slot.
  • the time slot here can be a mini time slot in a system with a subcarrier spacing of 60kHz or a mini time slot in a system with a subcarrier spacing of 15kHz.
  • the time slot is not limited in the embodiment of the present invention.
  • the time slot includes one or more symbols.
  • the time slot here can be a time slot in a system with a 60kHz subcarrier spacing, or a time slot in a system with a 15kHz subcarrier spacing, which is not limited in the embodiment of the present invention.
  • TTI is a commonly used parameter in current communication systems (for example, Long Term Evolution (LTE) system), and refers to a scheduling unit for scheduling data transmission in a wireless link.
  • LTE Long Term Evolution
  • 1TTI 1ms. That is, one TTI is the size of one subframe (subframe) or two slots (slot), which is the basic unit of time governed by radio resource management (scheduling, etc.).
  • the domestic 230M frequency band 25kHz carrier interval is currently supported, and one TTI is one frame (there are two frame structures, 10ms and 20ms).
  • Channel quality is a way to evaluate the attenuation of the signal by the channels of the two communication parties. Channel quality is also a way for the receiver to evaluate the "good” or “bad” of the received signal.
  • Channel quality can be expressed as reference signal received power RSRP, reference signal received quality RSRQ, channel quality information CQI measured by terminal equipment, or received interference power (Received, RIP Interference Power) value of physical carrier, signal to noise ratio, signal and Interference plus noise ratio, etc.
  • the frequency domain physical resources are interleaved and arranged in the frequency domain: two sets of frequency domain physical resources are interleaved in the frequency domain. However, the frequency domain physical resources of the two sets do not overlap.
  • the frequency points (frequency of the carrier) of the physical resources of the first set are 1, 3, and 7 (unit: M Hz); the frequency points of the physical resources of the second set are 2, 10, and 11.
  • at least one frequency point of at least one of the two sets is between the lowest frequency point and the highest frequency point of the other set.
  • the frequency point 2 of the second set is between the lowest frequency point 1 and the highest frequency point 7 of the first set.
  • the xth frequency domain resource logical index represents one or more frequency domain resource logical indexes
  • the xth frequency domain physical resource represents One or more frequency domain physical resources (or frequency domain physical resource units).
  • the first frequency domain resource logical index represents one or more frequency domain resource logical indexes.
  • the access network device can be an access network device or a chip in the access network device.
  • the connected network device is an access network device as an example to describe the embodiment.
  • Terminal device The terminal device can be a terminal device or a chip in a terminal device device.
  • the embodiment is described as an example where the terminal device is a terminal device.
  • FIG. 1a is a schematic diagram of a possible network architecture of this application.
  • the network includes at least terminal devices 10a and 10b.
  • the terminal devices 10a and 10b communicate with the access network device 20 through a wireless interface.
  • the channel through which the access network device sends data to the terminal device is the downlink channel.
  • the channel through which the terminal device sends data to the access network device is the uplink channel.
  • the terminal device 10a and the terminal device 10b can also communicate via a wireless link.
  • the terminal devices 10a and 10b may also be located in the vehicle to form communication between the vehicles.
  • a terminal device is a device with a wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, airplanes, etc.). Balloons and satellites are classy).
  • the terminal may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) Wireless terminals in, self-driving (self-driving) wireless terminals, wireless terminals in remote medical (remote medical), wireless terminals in smart grid (smart grid), wireless terminals in transportation safety, Wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • Access network equipment is a type of equipment that connects terminal equipment to a wireless network, including but not limited to: gNB in 5G, evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved nodeB, or home node B, HNB) , Baseband unit (BaseBand Unit, BBU), base station (g nodeB, gNB), transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center, etc., in addition, can also include Wifi access Access point (AP), etc.
  • gNB evolved node B
  • RNC radio network controller
  • RNC radio network controller
  • node B node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved nodeB, or home node
  • Fig. 1b shows a terminal device 200 provided by some embodiments of the present application.
  • the terminal device 200 may be 10a or 10b in FIG. 1.
  • the terminal device 200 may include: one or more terminal processors 201, a memory 202, a communication interface 203, a receiver 205, a transmitter 206, a coupler 207, an antenna 208, a user interface 202, and input and output Modules (including audio input and output module 210, key input module 211, display 212, etc.).
  • FIG. 1b takes the connection through the bus as an example.
  • the communication interface 203 can be used for the terminal device 200 to communicate with other communication devices, such as access network devices.
  • the access network device may be the access network device 300 shown in FIG. 5.
  • the communication interface 203 may be a long-term evolution (LTE) (4G) communication interface, or a communication interface of 5G or a future new air interface.
  • LTE long-term evolution
  • the terminal device 200 may also be configured with a wired communication interface 203, such as a local access network (Local Access Network, LAN) interface.
  • LAN Local Access Network
  • the transmitter 206 may be used to transmit and process the signal output by the terminal processor 201, such as signal modulation.
  • the receiver 205 may be used for receiving and processing the mobile communication signal received by the antenna 208, such as signal demodulation.
  • the transmitter 206 and the receiver 205 can be regarded as one wireless modem.
  • the number of the transmitter 206 and the receiver 205 may each be one or more.
  • the antenna 208 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 207 is used to divide the mobile communication signal received by the antenna 208 into multiple channels and distribute them to multiple receivers 205.
  • the terminal device 200 may also include other communication components, such as a GPS module, a Bluetooth (Bluetooth) module, and a wireless high-fidelity (Wireless Fidelity, Wi-Fi) module. Not limited to the above-mentioned wireless communication signals, the terminal device 200 may also support other wireless communication signals, such as satellite signals, shortwave signals, and so on. Not limited to wireless communication, the terminal device 200 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • a wired network interface such as a LAN interface
  • the input and output module may be used to implement interaction between the terminal device 200 and the user/external environment, and may mainly include an audio input and output module 210, a key input module 211, a display 212, and so on. Specifically, the input and output module may also include a camera, a touch screen, a sensor, and so on. Wherein, the input and output modules all communicate with the terminal processor 201 through the user interface 209.
  • the memory 202 is coupled with the terminal processor 201, and is used to store various software programs and/or multiple sets of instructions.
  • the memory 202 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 202 may store an operating system (hereinafter referred to as system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • system such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 202 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more access network devices.
  • the memory 202 can also store a user interface program, which can vividly display the content of the application program through a graphical operation interface, and receive user control operations on the application program through input controls such as menus, dialog
  • the memory 202 may be used to store an implementation program on the terminal device 200 side of the signal transmission method provided by one or more embodiments of the present application.
  • the implementation of the signal transmission method provided by one or more embodiments of the present application please refer to the subsequent embodiments.
  • the terminal processor 201 can be used to read and execute computer-readable instructions. Specifically, the terminal processor 201 may be used to call a program stored in the memory 212, such as a program for implementing the signal transmission method provided by one or more embodiments of the present application on the terminal device 200 side, and execute the instructions contained in the program.
  • a program stored in the memory 212 such as a program for implementing the signal transmission method provided by one or more embodiments of the present application on the terminal device 200 side, and execute the instructions contained in the program.
  • FIG. 1c shows an access network device 300 provided by some embodiments of the present application.
  • the access network device 300 may be the access network device 20 in FIG. 1a.
  • the access network device 300 may include: one or more access network device processors 301, a memory 302, a communication interface 303, a transmitter 305, a receiver 306, a coupler 307, and an antenna 308. These components can be connected through a bus 304 or other types.
  • FIG. 1c uses a bus connection as an example.
  • the communication interface 303 can be used for the access network device 300 to communicate with other communication devices, such as terminal devices or other access network devices.
  • the terminal device may be the terminal device 200 shown in FIG. 4.
  • the communication interface 303 and the communication interface 203 may be a long-term evolution (LTE) (4G) communication interface, or a 5G or future new air interface communication interface.
  • LTE long-term evolution
  • the access network device 300 may also be configured with a wired communication interface 303 to support wired communication.
  • the backhaul link between one access network device 300 and other access network devices 300 may be a wired communication connection.
  • the transmitter 305 may be used to transmit and process the signal output by the processor 301 of the access network device, such as signal modulation.
  • the receiver 306 can be used to receive and process the mobile communication signal received by the antenna 308. For example, signal demodulation.
  • the transmitter 305 and the receiver 306 can be regarded as a wireless modem.
  • the number of transmitters 305 and receivers 306 may each be one or more.
  • the antenna 308 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 307 can be used to divide the mobile communication signal into multiple channels and distribute them to multiple receivers 306.
  • the memory 302 is coupled with the access network device processor 301, and is used to store various software programs and/or multiple sets of instructions.
  • the memory 302 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 302 may store an operating system (hereinafter referred to as the system), such as embedded operating systems such as uCOS, VxWorks, RTLinux, and so on.
  • the memory 302 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more access network devices.
  • the access network device processor 301 can be used to perform wireless channel management, implement call and communication link establishment and removal, and provide cell switching control for users in the control area.
  • the access network device processor 301 may include: an administration/communication module (Administration Module/Communication Module, AM/CM) (a center for voice channel exchange and information exchange), a basic module (Basic Module, BM) ( Used to complete call processing, signaling processing, radio resource management, wireless link management and circuit maintenance functions), code conversion and submultiplexer (Transcoder and SubMultiplexer, TCSM) (used to complete multiplexing, demultiplexing and code Transform function) and so on.
  • an administration/communication module (Administration Module/Communication Module, AM/CM) (a center for voice channel exchange and information exchange), a basic module (Basic Module, BM) ( Used to complete call processing, signaling processing, radio resource management, wireless link management and circuit maintenance functions), code conversion and submultiplexer (Transcoder and SubMultiplexer, TCSM) (used to complete multiple
  • the access network device processor 301 may be used to read and execute computer-readable instructions. Specifically, the access network device processor 301 may be used to call a program stored in the memory 302, such as the implementation program of the signal transmission method provided by one or more embodiments of the present application on the access network device 300 side, and execute the program. The instructions contained in the program.
  • Fig. 2 is a schematic diagram of an effective carrier provided by an embodiment of the application.
  • physical carrier indexes 1-20 are given, and each physical carrier index corresponds to a frequency domain physical resource.
  • One frequency domain physical resource can be one carrier.
  • one frequency domain physical resource is used as one carrier as an example for description.
  • the bandwidth of each carrier is the same, and the physical carrier index 1-20 corresponds to the continuous physical carrier. For example, the bandwidth of each carrier is 1MHz, and the starting frequency of physical carrier index 1 is 2G Hz.
  • the frequency domain resource corresponding to physical carrier index 1 is 2G to 2G+1MHz; the frequency domain resource corresponding to physical carrier index 2 is 2G+1MHz to 2G+2MHz; and so on, the frequency domain resource corresponding to physical carrier index 20 is 2G+ 19MHz to 2G+20MHz.
  • the operator or the enterprise network determines that the physical carrier index 6, 7, 11, 12, 15, 16 is not available for the access network equipment.
  • the physical carrier corresponding to the physical carrier index is not allocated to the communication network to which the access network device belongs.
  • the communication network is an enterprise network, and the physical carrier corresponding to the physical carrier index 6, 7, 11, 12, 15, 16 is not allocated to the enterprise.
  • a valid carrier of 1 indicates that the physical carrier index is available, and a valid carrier of 0 indicates that the physical carrier index is not available.
  • the third row of Figure 2 shows the correspondence between the logical carrier index or the physical channel index after removing the unavailable carrier of the access network device.
  • logical carrier index 6 corresponds to physical carrier index 8.
  • the access network device When the physical carrier index is 3, 8, 10, 18, the interference on the corresponding physical carrier is large (equivalent to poor channel quality or poor signal reception quality).
  • the access network device does not want to communicate with the terminal device on the physical carrier corresponding to the physical carrier index of 3, 8, 10, and 18.
  • the access network device performs resource scheduling, it is allocated a continuous logical carrier index. In this case, in order to avoid physical carriers corresponding to physical carrier indexes 3, 8, 10, and 18 during scheduling, for logical carrier indexes 1-8, 3 or more carriers cannot be allocated at a time.
  • Fig. 3 shows a flowchart of the access network device receiving data from the terminal device.
  • one frequency domain physical resource unit is taken as an example for one carrier.
  • the frequency domain resource logical index is the logical carrier index.
  • the access network device sends a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource to the terminal device.
  • Different frequency domain resource logical indexes correspond to different frequency domain physical resources.
  • the first frequency domain physical resource is the corresponding carrier of the physical carrier index 1-5, 8-11, 14, 17-19.
  • the first frequency domain resource logical index includes a first set and a second set.
  • the logical indexes of frequency domain resources included in the first set are continuous indexes
  • the logical indexes of frequency domain resources included in the second set are continuous indexes. That is, the logical indexes of frequency domain resources included in the first set and the second set are all continuous indexes.
  • the frequency domain physical resources corresponding to the frequency domain resource logical index in the first set and the frequency domain physical resources corresponding to the frequency domain resource logical index in the second set are interleaved and arranged in the frequency domain. Any logical index of frequency domain resources included in the first set is different from any logical index of frequency domain resources included in the second set.
  • the channel quality of the frequency domain physical resource corresponding to any frequency domain resource logical index included in the first set is lower than the threshold; the channel quality of the frequency domain physical resource corresponding to any frequency domain resource logical index included in the second set Not lower than the threshold.
  • Figure 4 shows the corresponding relationship between the frequency domain resource logical index and the frequency domain physical resource index. Since the frequency domain physical resource index and the frequency domain physical resource have a one-to-one correspondence, FIG. 4 also shows the corresponding relationship between the frequency domain resource logical index and the frequency domain physical resource.
  • Figure 4 is based on Figure 2. In Figure 4, only valid carriers are drawn. The first row of Fig. 4 is similar to Fig. 2 and will not be repeated here. The second row of Figure 4 represents the channel quality. "1" indicates that the measured channel quality is high or good; "0" indicates that the channel quality is low or poor.
  • Fig. 5 shows an example in which the access network device determines the channel quality of the frequency domain physical resources before step 301.
  • the access network device receives a reference signal from the terminal device.
  • the reference signal may be a sounding reference signal (SRS).
  • the access network device measures the signal reception quality according to the reference signal.
  • the physical carrier index of the physical carrier index is 1, 2, 4, 5, 9, 11, 14 has a high channel quality evaluation, and the physical carrier index is 3, 8, 10, 18.
  • the channel quality is evaluated as low.
  • the signal reception quality as RIP it is equivalent to physical carriers with physical carrier indexes of 3, 8, 10, and 18 that have greater interference and are physical carriers that the access network device does not want to schedule.
  • the logical carrier index corresponding to the physical carrier index of 3, 8, 10, 18 is a continuous index (belonging to the first set); the physical carrier index is 1, 2, 4, 5, 9, 11, 14
  • the corresponding logical carrier index is a continuous index (in the second set).
  • the first frequency domain resource logical index is the logical carrier index 1-13 in FIG. 4.
  • the access network equipment can have the following methods for the correspondence between the physical carrier index and the logical carrier index: Method 1: The access network equipment assigns the physical carrier to the first set or the second set according to the reception quality of the physical carrier signal. The physical carrier index and the logical carrier index in the first set or the second set correspond randomly.
  • the physical carrier whose RIP measured by the access network device is higher than 10DB is the second set, for example, the physical carrier index 3, 8, 10, 18 in Figure 4; the physical carrier whose RIP measured by the access network device is less than or equal to 10DB is The first collection. As shown in Figure 4.
  • the access network device can schedule a physical carrier with a higher channel quality for data transmission or reception as much as possible, thereby improving the reliability of data communication.
  • Method 2 The access network equipment is sorted according to the physical carrier signal reception quality from high to low. That is, the first frequency domain resource logical index corresponds to the frequency domain physical resources with channel quality from high to low in the first frequency domain physical resources in a descending order.
  • the RIP measured by the access network equipment is sorted from low to high, and its corresponding logical carrier index is numbered from low to high.
  • the physical carrier with physical carrier index 1 has the lowest RIP value
  • the physical carrier with physical carrier index 18 has the highest RIP value.
  • the last four physical carriers corresponding to the logical carrier index are carriers with relatively large interference (poor channel quality), and the access network device does not want to schedule these four physical carriers to communicate with the terminal device.
  • Method 3 The access network equipment is sorted according to the physical carrier signal reception quality from low to high. Mode 3 can refer to Mode 2, which will not be repeated here. Method 2 or 3 mapping method, because resources with similar channel quality are scheduled together, it is beneficial to use physical resources with high channel quality for data transmission or reception, thereby increasing the data rate of the entire system.
  • mapping method when the access network device performs resource scheduling through continuous logical carrier indexing, more resources can be allocated, thereby increasing the terminal transmission rate, reducing the terminal transmission delay, and improving the utilization of spectrum resources.
  • the access network device and the terminal device communicate through frequency hopping.
  • the access network device receives data on the second frequency domain physical resource in a frequency hopping manner.
  • Frequency hopping is an important means of randomizing interference.
  • Frequency hopping includes single carrier frequency hopping and group frequency hopping. In single carrier frequency hopping, the same logical carrier is mapped to (or corresponds to) different physical carriers in different time units.
  • a frequency domain frequency hopping unit of single carrier frequency hopping is a frequency domain physical resource.
  • a logical carrier with a logical carrier index of 1 is mapped to a physical carrier with a physical carrier index of 1 in the first time unit; at a second time unit, the logical carrier is mapped to a physical carrier with a physical carrier index of 13.
  • a frequency domain frequency hopping unit of group frequency hopping is a plurality of frequency domain physical resources.
  • a group of logical carriers with logical carrier indexes 1, 2 are mapped to physical carriers with physical carrier indexes 1, 2 in the first time unit, respectively.
  • logical carriers with logical carrier indexes of 1, 2 are mapped to physical carriers with physical carrier indexes of 13, 14 respectively.
  • the relevant parameters of a group of carriers in the group frequency hopping can be predefined according to product requirements.
  • the access network equipment can also send relevant parameters to the terminal equipment through signaling.
  • the product terminal RF (Radio Frequency) radio frequency capability bandwidth is too small
  • a group of carriers in the group frequency hopping can be defined as a group of continuous physical carriers, and the number of carriers in a group is 4.
  • FIG. 6 shows a schematic diagram of group frequency hopping and single carrier frequency hopping. As shown in Figure 6, a group of carriers in group frequency hopping is 4 consecutive physical carriers. Since the physical carrier indexes 6, 7, 12, 13, 15, 16, and 20 in Figure 6 are invalid carriers, in the physical carrier indexes 1-20, only 1-4, 8-11 can form two frequency hopping groups. Physical carrier index 1-4 is a frequency hopping group, and 8-11 is another frequency hopping group.
  • the remaining physical carrier indexes 5, 14, 17-19 are used for single carrier frequency hopping.
  • the group hopping size in Figure 6 is the number of consecutive physical carriers included in a hopping group.
  • effective carriers are divided into group hopping carrier resources and single carrier frequency hopping carrier resources.
  • the group hopping carrier and the non-group hopping carrier corresponding to the logical carrier index in FIG. 6 are interleaved (or coexist with intervals).
  • the resource allocation indication is continuous resource allocation (logical carrier index is continuous)
  • single-carrier frequency hopping carriers and group frequency hopping carriers cannot be mixed, the number of continuously allocated resources (the number of carriers) will be affected. limit. For example, in FIG.
  • the access network device allocates single-carrier frequency hopping resources to the terminal device A.
  • Logical carrier index 5 (physical carrier index 5) cannot be allocated together with logical carrier index 10-13.
  • the access network device allocates the group frequency hopping carrier resource to the terminal device B.
  • the access network equipment cannot allocate these two groups at one time for terminal equipment B for data transmission. This leads to limited carrier data that can be scheduled at one time, and carrier utilization decreases.
  • Fig. 7 is based on Fig. 6, a schematic diagram of mapping the logical carrier index to the physical carrier in the case where both group frequency hopping and single carrier frequency hopping exist in Fig. 7.
  • Figure 7 only shows the effective carrier.
  • the first row and the second row of FIG. 7 are similar to those of FIG. 6 and will not be repeated.
  • the frequency domain physical resource corresponding to any one frequency domain resource logical index included in the second set belongs to the frequency domain physical resource of single carrier frequency hopping; the frequency domain physical resource corresponding to any one frequency domain resource logical index included in the first set belongs to group hopping Frequency domain physical resources.
  • the frequency domain resource logical index in the first set is the logical carrier index of the group frequency hopping carrier, and the index is 1-8; the frequency domain resource logical index in the second set is the logical carrier index of single carrier frequency hopping , The index is 9-13.
  • the access network device sends instruction information to the terminal device.
  • the indication information indicates the second frequency domain resource logical index, the first set includes the second frequency domain resource logical index or the second set includes the second frequency domain resource logical index.
  • the second frequency domain resource logical index is a continuous index, and the second frequency domain resource logical index has a one-to-one correspondence with the second frequency domain physical resource.
  • the indication information indicates the logical index of the frequency domain resource of the data to be received.
  • the frequency domain resource logical index of the data to be received corresponds to the frequency domain physical resource of the data to be received.
  • the frequency domain resource logical index of the data to be received is a continuous index.
  • the indication information is carried in scheduling signaling.
  • the frequency domain physical resource of the data to be received is a discontinuous physical resource.
  • the indication information indicates that the starting logical carrier index is 2, and the number of logical carrier indexes is 5.
  • the second frequency domain resource logical index is logical carrier index 2-6.
  • the terminal device After the terminal device receives it, the terminal device sends the data on the physical carrier corresponding to the logical carrier index 2-6 (the physical carrier index is 2, 4, 5, 9, 11).
  • the indication information indicates the starting carrier logical index 1, and the length is 4.
  • the logical index of the second frequency domain resource is that the logical carrier index is 1-4, and the corresponding physical carrier index is 1-4.
  • the terminal device receives the instruction information at the kth time unit, and the terminal device can send data at the k+pth time unit, and p is a positive integer.
  • step 303 the access network device receives data from the terminal device.
  • the access network device receives data from the terminal device on receiving data on the second frequency domain physical resource. Taking FIG. 4 as an example, referring to step 302, the access network device receives data from the terminal device on the physical carrier whose physical carrier index is 2, 4, 5, 9, and 11. Taking FIG. 7 as an example, referring to step 302, the access network device receives data from a terminal device (for example, terminal device B) on a physical carrier with a physical carrier index of 1-4.
  • a terminal device for example, terminal device B
  • Figure 8 shows the flow chart of the access network device sending data to the terminal device.
  • the main difference between Fig. 8 and Fig. 3 is that in Fig. 3, it is uplink data transmission; in Fig. 8, it is downlink data transmission.
  • the following description mainly focuses on the differences between FIG. 8 and FIG. 3.
  • Step 801 refer to step 301, which will not be repeated here.
  • Step 802 In 802, the logical index of the frequency domain resource indicated by the indication information sent by the access network device is used to notify the terminal device that it is used for receiving downlink data.
  • the terminal device determines the physical resource for receiving the data according to the instruction information. For details, refer to step 302, and change the data sent by the terminal device in step 302 to the data received by the terminal device (equivalent to the difference between 803 and 303).
  • Step 803 The access network device sends data to the terminal device.
  • the terminal device receives data from the access network device on the frequency domain physical resource determined in step 802.
  • Fig. 9 shows an example in which the access network device receives the downlink channel quality sent by the terminal device before step 801.
  • the access network device sends a reference signal to the terminal device.
  • the reference signal may be a channel state information (CSI) reference signal.
  • the terminal equipment measures the downlink channel quality according to the reference signal.
  • the terminal device sends the channel quality to the access network device.
  • the terminal device sends a channel quality indication (CQI) to the access network device.
  • CQI is used to indicate the quality of the downlink channel.
  • the access network device can determine the correspondence between the logical carrier index and the physical carrier index according to the received downlink channel quality.
  • FIG. 10 shows a possible schematic block diagram of a communication device involved in an embodiment of the present application.
  • the communication device 100 includes: a processing unit 101, a sending unit 102, and a receiving unit 103.
  • the sending unit 102 sends a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource, sends a reference signal, and sends a sending instruction Information etc.
  • the receiving unit 103 receives data and the like on the second frequency domain physical resource.
  • the processing unit 101 measures channel quality and the like according to the reference signal.
  • the sending unit 102 sends a reference signal, sends data, and so on.
  • the receiving unit 103 receives a one-to-one correspondence between the frequency domain resource logical index and the first frequency domain physical resource, indication information, and the like.
  • the processing unit 101 determines the number of second frequency domain physical resources to be sent and the like according to the instruction information.
  • the sending unit 102 sends a reference signal, a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource, indicating information, data.
  • the receiving unit 103 receives channel quality information and the like.
  • the processing unit 101 determines channel quality information according to the channel quality information.
  • the communication device 100 is a terminal device
  • the sending unit 102 sends channel quality information.
  • the receiving unit 103 receives the reference signal, the one-to-one correspondence between the frequency domain resource logical index and the first frequency domain physical resource, indication information, data, and so on.
  • the processing unit 101 determines channel quality information according to the reference signal.
  • the processing unit 101 is used to control and manage the actions of the communication device 100, signal processing, and the like.
  • the sending unit 703 is used to send the data, reference signals, etc. sent in the foregoing embodiment; the receiving unit 703 is used to receive the data, reference signals, etc., in the foregoing embodiment.
  • Fig. 11 shows a schematic structural diagram of a communication device provided by the present application.
  • the device 110 may include a processor 111 and one or more interfaces 112 coupled to the processor 111.
  • the apparatus 110 may further include a memory 113.
  • the processor 111 and the memory are connected through a bus 124.
  • the device 110 may be a chip. among them:
  • the processor 111 can be used to read and execute computer-readable instructions.
  • the processor 111 may mainly include a controller, an arithmetic unit, and a register.
  • the controller is mainly responsible for instruction decoding, and sends out control signals for the operation corresponding to the instruction.
  • the arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations and logical operations, etc., and can also perform address operations and conversions.
  • the register is mainly responsible for storing the register operands and intermediate operation results temporarily stored during the execution of the instruction.
  • the hardware architecture of the processor 111 may be an application specific integrated circuit (ASIC) architecture or the like.
  • the processor 111 may be single-core or multi-core.
  • the memory 113 can be used to store program codes containing computer fetchable instructions, and can also be used to store input/output data of the processor 111.
  • the input/output interface 112 can be used to input data to the processor 601, and can externally output the processing result of the processor 111.
  • the processor 111 may be configured to call the implementation program on the access network device side of the method provided in one or more embodiments of this application from the memory, and execute the instructions contained in the program.
  • the input/output interface 112 sends a one-to-one correspondence between the first frequency domain resource logical index and the first frequency domain physical resource to the radio frequency module, and the radio frequency module sends the correspondence relation to the terminal device through the antenna.
  • the input/output interface 112 receives data and the like from the terminal device from the radio frequency module.
  • processor 111 and the input/output interface 112 can be implemented either through hardware design, through software design, or through a combination of software and hardware, which is not limited here.
  • Fig. 12 shows a schematic structural diagram of a communication device provided by the present application.
  • the device 120 may include a processor 121 and one or more input interfaces 122 coupled to the processor 121.
  • the device 120 may further include a memory 123.
  • the device 120 may be a chip. among them:
  • the processor 121 may be used to read and execute computer-readable instructions.
  • the processor 121 may mainly include a controller, an arithmetic unit, and a register.
  • the controller is mainly responsible for the instruction decoding, and sends out control signals for the operation corresponding to the instruction.
  • the arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations and logical operations, etc., and can also perform address operations and conversions.
  • the register is mainly responsible for storing the register operands and intermediate operation results temporarily stored during the execution of the instruction.
  • the hardware architecture of the processor 121 may be an application specific integrated circuit (ASIC) architecture, a MIPS architecture, an ARM architecture, or an NP architecture, and so on.
  • the processor 501 may be single-core or multi-core.
  • the memory 123 can be used to store program codes containing computer fetchable instructions, and can also be used to store input/output data of the processor 121.
  • the input/output interface 122 can be used to input data to be processed to the processor 121, and can output the processing result of the processor 121 to the outside.
  • the interface 122 may be a General Purpose Input Output (GPIO) interface, which may be connected to multiple peripheral devices (such as a display (LCD), a camera, a radio frequency module, etc.).
  • GPIO General Purpose Input Output
  • the interface 122 may also include multiple independent interfaces, such as an Ethernet interface, an LCD interface, and a Camera interface, which are respectively responsible for communication between different peripheral devices and the processor 121.
  • the processor 121 may be configured to call a terminal-side implementation program of the signal transmission method provided in one or more embodiments of the present application from the memory, and execute the instructions contained in the program.
  • the interface 122 may be used to output the execution result of the processor 121.
  • the interface 122 may be specifically used to output the processing result of the processor 121.
  • the interface 122 sends data to the radio frequency module, and the radio frequency module sends the data to the access network device through the antenna.
  • the interface 122 receives instruction information from the access network equipment from the radio frequency module.
  • processor 121 and the interface 122 may be implemented through hardware design, may also be implemented through software design, or may be implemented through a combination of software and hardware, which is not limited here.
  • the access network device when the access network device performs resource scheduling through continuous logical carrier indexing, more resources can be allocated, thereby increasing the terminal transmission rate, reducing terminal transmission delay, and increasing Utilization rate of spectrum resources.
  • the process can be completed by a computer program instructing relevant hardware.
  • the program can be stored in a computer readable storage medium. , May include the processes of the above-mentioned method embodiments.
  • the aforementioned storage media include: ROM or random storage RAM, magnetic disks or optical disks and other media that can store program codes.

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Abstract

La présente demande divulgue un procédé et un dispositif d'indication de ressources. Dans un mode de réalisation de la présente demande, un appareil de réseau d'accès envoie à un appareil terminal une correspondance biunivoque entre un indice logique de ressource de domaine fréquentiel et une ressource physique de domaine fréquentiel. Un premier indice logique de ressource de domaine fréquentiel comprend un premier ensemble et un second ensemble. Des indices logiques de ressources de domaine fréquentiel compris dans le premier ensemble et le second ensemble sont tous les indices consécutifs. Des ressources physiques de domaine fréquentiel correspondant aux indices logiques de ressource de domaine fréquentiel dans le premier ensemble et des ressources physiques de domaine fréquentiel correspondant aux indices logiques de ressource de domaine fréquentiel dans le second ensemble sont agencées de manière entrelacée. L'appareil de réseau d'accès envoie à l'appareil terminal des informations d'indication pour indiquer un second indice logique de ressource de domaine fréquentiel. Les seconds indices logiques de ressource de domaine fréquentiel sont compris dans l'un du premier ensemble et du second ensemble. Les seconds indices logiques de ressource de domaine fréquentiel sont des indices consécutifs, et sont en correspondance biunivoque avec des secondes ressources physiques de domaine fréquentiel. L'appareil de réseau d'accès reçoit des données sur la seconde ressource physique du domaine fréquentiel. Les modes de réalisation de la présente invention améliorent les taux d'utilisation des ressources.
PCT/CN2019/130256 2019-12-31 2019-12-31 Procédé et dispositif d'indication de ressources, et système WO2021134382A1 (fr)

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