WO2022116206A1 - 一种通信方法、装置及系统 - Google Patents

一种通信方法、装置及系统 Download PDF

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Publication number
WO2022116206A1
WO2022116206A1 PCT/CN2020/134084 CN2020134084W WO2022116206A1 WO 2022116206 A1 WO2022116206 A1 WO 2022116206A1 CN 2020134084 W CN2020134084 W CN 2020134084W WO 2022116206 A1 WO2022116206 A1 WO 2022116206A1
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WIPO (PCT)
Prior art keywords
subframe
offset
mbsfn
network device
range
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Ceased
Application number
PCT/CN2020/134084
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English (en)
French (fr)
Inventor
王飞
杨兵
李颖锐
张振华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2020/134084 priority Critical patent/WO2022116206A1/zh
Priority to CN202080106434.3A priority patent/CN116438814B/zh
Priority to EP20964051.5A priority patent/EP4236385B1/en
Priority to KR1020237020365A priority patent/KR20230104975A/ko
Publication of WO2022116206A1 publication Critical patent/WO2022116206A1/zh
Priority to US18/323,379 priority patent/US12464544B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method, device, and system.
  • Spectrum sharing is a technology that shares the existing spectrum of long term evolution (LTE) with new radio (NR) signals, or shares the new spectrum of NR with LTE signals, which can effectively improve spectrum utilization. .
  • LTE long term evolution
  • NR new radio
  • the cell reference signal (CRS) of LTE is sent in full bandwidth, and the frequency spectrum of LTE is directly shared with the NR signal, which will cause time-frequency resource conflict between the LTE CRS and the NR signal.
  • the LTE base station can send the LTE cell reference signal (CRS) pattern to the NR base station; the NR base station can send data and LTE CRS to the NR terminal device avoiding the time-frequency position of the LTE CRS according to the received LTE CRS pattern.
  • the NR terminal equipment can not analyze the data of the time-frequency position where the LTE CRS is located, but analyze the data of the time-frequency position except the time-frequency position of the LTE CRS according to the LTE CRS pattern, thereby realizing the spectrum sharing between LTE and NR. .
  • the LTE base station can configure part of the subframes as multicast/multicast single frequency network (MBSFN) subframes, and the MBSFN subframes can make the synchronization signal of NR and the physical broadcast channel block ( Synchronization signal and physical broadcast channel block (SSB) avoids the interference of LTE CRS, so that NR terminal equipment can realize spectrum sharing between LTE and NR without LTE CRS pattern.
  • MBSFN multicast/multicast single frequency network
  • SSB Synchronization signal and physical broadcast channel block
  • the LTE supported by the protocol can be configured with MBSFN subframe numbers #1, #2, #3, #6, #7 and #8, that is, the LTE base station can only configure some or all of the six subframes as MBSFN subframes, and the subframes occupied by NR SSB under 4 beams are numbered #0 and #1, which means that the subframes occupied by NR SSB cannot all correspond to MBSFN subframes (such as subframe #0), resulting in NR SSB There is a time-frequency resource conflict with LTE CRS.
  • Embodiments of the present application provide a communication method, device, and system to avoid time-frequency resource conflict between NR SSB and LTE CRS in spectrum sharing.
  • an embodiment of the present application provides a communication method, and the method may be executed by a first network device, or executed by a component (such as a processor, a chip, or a chip system, etc.) of the first network device.
  • the first network device receives the first position from the second network device, where the first position is the position of one or more subframes occupied by the first information; the first offset is determined by using In determining the second position, the second position is the position after the first position is offset by the first offset, and the second position is located within the first range, and the first range is to support the configuration of the multicast/multicast single frequency network MBSFN sub-system.
  • the position of the frame configure the MBSFN subframe, the position of the MBSFN subframe includes the second position; and send the first offset and the first MBSFN configuration information to the second network device, the first MBSFN configuration information is used to determine the MBSFN subframe The configuration state in the first range.
  • the first network device and the second network device may provide network services of different standards for the terminal device.
  • the first network device may be a module or device for implementing LTE network service functions
  • the second network device may be a module or device for implementing NR network service functions.
  • the first network device can determine the first offset and configure the MBSFN subframes according to the positions of one or more subframes occupied by the first information.
  • the first offset can be used to determine a second position, where the one or more subframes are offset by the first offset, and the second position is within a position that supports the configuration of MBSFN subframes , that is, the position of the configured MBSFN subframe includes the second position. It means that the position of one or more subframes occupied by the first information can fall within the position of the MBSFN subframe after being shifted by the first offset, that is, the second network device can The amount of first information is sent on MBSFN subframes.
  • sending the first information on the MBSFN subframe can avoid the time-frequency resource between the first information and the CRS.
  • Conflict to achieve spectrum sharing between LTE and NR.
  • the configuration of the MBSFN subframe by the first network device includes: the first network device may configure the MBSFN subframe according to the first position and the first offset.
  • the first network device can configure the MBSFN subframes according to the positions of the one or more subframes occupied by the first information and the first offset, so as to ensure that the positions of the one or more subframes occupied by the first information are offset After shifting the first offset, it can fall within the position range of the configured MBSFN subframe, so that the second network device can send the first information on the MBSFN subframe to avoid time-frequency resource conflict between the first information and the CRS, Realize spectrum sharing between LTE and NR.
  • the first network device may first determine, according to the first position and the first offset, a position where the first position is shifted by the first offset, that is, the second position, and then configure the MBSFN subframe based on the second position , to ensure that the position of the MBSFN subframe includes the second position.
  • the first network device determining the first offset includes: the first network device may determine the first offset according to the first location and the first range.
  • the first network device can determine the first offset according to the first position and the first range, and the first range is supported
  • the position of the MBSFN subframe is configured, in this way, it can be ensured that the position of one or subframe occupied by the first information after being shifted by the first offset amount can be configured as an MBSFN subframe.
  • the first offset is an integer greater than 0 and less than 10.
  • one frame includes 10 subframes, and the first offset may be an integer greater than 0 and less than 10.
  • the first information includes a synchronization signal and at least one of a physical broadcast channel block, a system information block, other system information, or a paging message.
  • the first information can be an NR signal that may still have time-frequency resource conflict with CRS in the case of using MBSFN subframes, for example, one of SSB, system information block, other system information or paging message or multiple.
  • an embodiment of the present application provides a communication method, and the method may be executed by a second network device, or executed by a component (such as a processor, a chip, or a chip system, etc.) of the second network device.
  • the second network device may send the first position to the first network device, where the first position is the position of one or more subframes occupied by the first information; receive the first offset from the first network device and the first multicast/multicast single frequency network MBSFN configuration information, wherein the first MBSFN configuration information is used to determine the configuration state of the MBSFN subframe within a first range, and the first range is the position that supports the configuration of the MBSFN subframe; and, On the time domain resource corresponding to the second position, the first information is sent to the first terminal device, where the second position is a position after the first position is offset by the first offset, and the position of the MBSFN subframe includes the second position .
  • the first network device and the second network device may provide network services of different standards for the terminal device.
  • the first network device may be a module or device for implementing an LTE network service function
  • the second network device may be a module or device for implementing an NR network service function.
  • the second network device can send the location of one or more subframes occupied by the first information to the first network device, so that the first network device can determine the location of the one or more subframes occupied by the first information
  • the first offset and configuration MBSFN subframe may receive the first offset and the first MBSFN subframe from the first network device, so that the second network device may determine one or more subframe offsets occupied by the first information according to the first offset
  • the position after the first offset is the second position, and then the first information is sent to the first terminal device on the time domain resource corresponding to the second position. Since the position of the MBSFN subframe includes the second position, the second network device is the first information sent to the first terminal device on the MBSFN subframe.
  • the CRS in the MBSFN subframe is only located on the time-frequency resource corresponding to the PDCCH, and there is no CRS on the time-frequency resource corresponding to the PDSCH. Therefore, sending the first information on the MBSFN subframe can avoid the time-frequency resource between the first information and the CRS. Conflict, to achieve spectrum sharing between LTE and NR.
  • one or more subframes corresponding to the second position include a first subframe, and the first subframe is located outside a second range, where the second range is offset by the first range. the method may further include: sending first indication information to the first terminal device, where the first indication information is used to indicate that rate matching is performed on the time domain resources corresponding to the first subframe.
  • the second range is the range after the first range is offset by the first offset, that is, the second range is the position supported by the second network device side and can be configured as the MBSFN subframe.
  • the second network device sends the first information on the MBSFN subframe, but for the second network On the device side, one or more subframes corresponding to the second position may be located outside the second range, such as the first subframe, which means that the second network device cannot use the first subframe as an MBSFN subframe.
  • This configuration status is notified to the first terminal device. Therefore, the second network device may send the first indication information to the first terminal device to instruct the first terminal device to perform rate matching on the time domain resources corresponding to the first subframe to successfully acquire the first information and/or data.
  • the method may further include: sending second MBSFN configuration information to the first terminal device, where the second MBSFN configuration information is used to determine the configuration state of the MBSFN subframe in the second range, the second MBSFN configuration information
  • the range is the range after the first range is offset by the first offset.
  • the first network device can send the second MBSFN configuration information to the first terminal device, so that the first terminal device can obtain downlink data without performing rate matching on the time domain resources corresponding to the MBSFN subframes.
  • the first MBSFN configuration information is subframes #1, #2 and #3, denoted as 111 000
  • the first offset is 1
  • the first range is subframes #1, #2, #3, #6, #7 and #8
  • the second range is subframes #2, #3, #4, #7, #8 and #9.
  • the MBSFN subframes in the second range are valid for subframes #2 and #3, so
  • the second MBSFN configuration information is subframe #2 and #3, denoted as 110 000.
  • the MBSFN subframe includes a second subframe, the second subframe is offset by a first offset and is located outside the first range, the second MBSFN configuration information includes second indication information, and the second subframe is offset by a first offset.
  • the indication information is used to indicate that rate matching is performed on the time domain resource corresponding to the second subframe.
  • the MBSFN subframe configured by the first network device may fall outside the first range after being offset by the first offset, such as the second subframe.
  • the location of the second subframe on the second network device side can be configured as an MBSFN subframe
  • the location of the second subframe cannot be configured as an MBSFN subframe. Therefore, the second subframe cannot be configured as an MBSFN subframe.
  • the network device may set the configuration state of the MBSFN subframe corresponding to the second subframe to 0, to instruct the first terminal device to perform rate matching on the time domain resource corresponding to the second subframe.
  • the MBSFN subframe includes a second subframe, and the second subframe is offset by the first offset and is located outside the first range.
  • the method may further include: sending the first terminal device the first Two indication information, where the second indication information is used to indicate that rate matching is performed on the time domain resource corresponding to the second subframe.
  • the second network device can instruct the first terminal device to perform rate matching on the time domain resources corresponding to the second subframe by means of MBSFN configuration information, so as to successfully acquire the first information and/or downlink data, and can also send The first terminal device sends first indication information, where the first indication information can be used to instruct the first terminal device to perform rate matching on the time domain resources corresponding to the second subframe to successfully acquire the first information and/or data.
  • the first offset is an integer greater than 0 and less than 10.
  • one frame includes 10 subframes, and the first offset may be an integer greater than 0 and less than 10.
  • the first information includes a synchronization signal and at least one of a physical broadcast channel block, a system information block, other system information, or a paging message.
  • the first information can be an NR signal that may still have time-frequency resource conflict with CRS in the case of using MBSFN subframes, for example, one of SSB, system information block, other system information or paging message or multiple.
  • an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a first network device, or a component (such as a processor, a chip, or a chip system, etc.) of the first network device.
  • the communication apparatus may include means for performing the steps of the above-mentioned first aspect.
  • the communication apparatus may include a communication unit and a processing unit.
  • the communication unit may be configured to receive a first position from the second network device, where the first position is a position of one or more subframes occupied by the first information.
  • the processing unit can be used to determine the first offset, the first offset is used to determine the second position, the second position is the position after the first position is offset by the first offset, and the second position is located in the first range
  • the first range is the position supporting the configuration of the multicast/multicast single frequency network MBSFN subframe; and, the configuration of the MBSFN subframe, the position of the MBSFN subframe includes the second position.
  • the communication unit may also be configured to send the first offset and the first MBSFN configuration information to the second network device, where the first MBSFN configuration information is used to determine the configuration state of the MBSFN subframe within the first range.
  • the processing unit may be configured to configure the MBSFN subframe according to the first position and the first offset.
  • the processing unit may be configured to: determine the first offset according to the first position and the first range.
  • the first offset is an integer greater than 0 and less than 10.
  • the first information includes a synchronization signal and at least one of a physical broadcast channel block, a system information block, other system information, or a paging message.
  • an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a second network device, or a component (such as a processor, a chip, or a chip system, etc.) of the second network device.
  • the communication device may include means for performing the steps of the second aspect above.
  • the communication device may comprise a communication unit.
  • the communication unit may be configured to send the first position to the first network device, where the first position is the position of one or more subframes occupied by the first information; receive the first offset and the first multicast/ Multicast single-frequency network MBSFN configuration information, wherein the first MBSFN configuration information is used to determine the configuration state of the MBSFN subframe within a first range, and the first range is the position supporting the configuration of the MBSFN subframe; and, used in the second On the time domain resource corresponding to the position, the first information is sent to the first terminal device, wherein the second position is a position after the first position is shifted by a first offset, and the position of the MBSFN subframe includes the second position.
  • one or more subframes corresponding to the second position include a first subframe, and the first subframe is located outside a second range, where the second range is offset by the first range.
  • the communication unit is further configured to: send first indication information to the first terminal device, where the first indication information is used to indicate that rate matching is performed on the time domain resources corresponding to the first subframe.
  • the communication unit is further configured to: send second MBSFN configuration information to the first terminal device, where the second MBSFN configuration information is used to determine the configuration state of the MBSFN subframe in the second range, the first The second range is the range after the first range is shifted by the first offset.
  • the MBSFN subframe includes a second subframe, the second subframe is offset by a first offset and is located outside the first range, the second MBSFN configuration information includes second indication information, and the second subframe is offset by a first offset.
  • the indication information is used to indicate that rate matching is performed on the time domain resource corresponding to the second subframe.
  • the MBSFN subframe includes a second subframe, and the second subframe is located outside the first range after being offset by the first offset, and the communication unit is further configured to: send to the first terminal device
  • the second indication information is used to indicate that rate matching is performed on the time domain resource corresponding to the second subframe.
  • the first offset is an integer greater than 0 and less than 10.
  • the first information includes a synchronization signal and at least one of a physical broadcast channel block, a system information block, other system information, or a paging message.
  • an embodiment of the present application provides a communication apparatus, where the communication apparatus includes a processor for implementing the method performed by the first network device in the first aspect above.
  • the communication apparatus may also include memory for storing program instructions and data.
  • the memory is coupled to the processor, and the processor can call and execute program instructions stored in the memory, so as to implement any one of the methods performed by the first network device in the first aspect above.
  • the communication apparatus may further include a transceiver, and the transceiver is used for the communication apparatus to communicate with other devices.
  • the other device is a second network device.
  • an embodiment of the present application provides a communication apparatus, where the communication apparatus includes a processor for implementing the method performed by the second network device in the foregoing second aspect.
  • the communication apparatus may also include memory for storing program instructions and data.
  • the memory is coupled to the processor, and the processor can call and execute program instructions stored in the memory, so as to implement any one of the methods performed by the second network device in the second aspect above.
  • the communication apparatus may further include a transceiver, and the transceiver is used for the communication apparatus to communicate with other devices.
  • the other device is a first network device or a second terminal device.
  • an embodiment of the present application provides a communication system, including a first network device capable of implementing the method provided by the first aspect, and a second network device capable of implementing the method provided by the second aspect.
  • an embodiment of the present application further provides a computer program, which, when the computer program runs on a computer, causes the computer to execute the method provided in any one of the foregoing aspects.
  • an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the computer is made to execute any one of the above methods provided.
  • an embodiment of the present application further provides a chip, where the chip is configured to read a computer program stored in a memory, and execute the method provided in any of the foregoing aspects.
  • an embodiment of the present application further provides a chip system, where the chip system includes a processor for supporting a computer device to implement the method provided in any one of the foregoing aspects.
  • the chip system further includes a memory for storing necessary programs and data of the computer device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the application is applied;
  • FIG. 2 is a schematic diagram of a cell bandwidth in an embodiment of the application
  • FIG. 3 is a schematic diagram of a CRS pattern in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an NR signal avoiding CRS in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of time-frequency resource conflict between an SSB and a CRS in an embodiment of the present application
  • FIG. 6 is another schematic diagram of time-frequency resource conflict between an SSB and a CRS in an embodiment of the present application
  • FIG. 7 is a schematic diagram of an MBSFN subframe in an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a first scope provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of an LTE subframe and an NR subframe provided by an embodiment of the present application;
  • FIG. 11 is a schematic diagram of an MBSFN subframe and a subframe occupied by an SSB provided by an embodiment of the present application;
  • FIG. 12 is a schematic diagram of first MBSFN configuration information and second MBSFN configuration information provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 15 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 16 is another schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the present application provides a communication method and apparatus for avoiding time-frequency resource conflict between NR SSB and LTE CRS in spectrum sharing.
  • the method and the device are based on the same technical concept. Since the principles of the method and the device for solving problems are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.
  • FIG. 1 shows a schematic diagram of a communication system suitable for an embodiment of the present application.
  • the communication system 100 may include a network device 200 and a terminal device.
  • the network device 200 may include multiple communication modules, and FIG. 1 takes the communication module 1 and the communication module 2 as an example.
  • the communication system 100 may include one or more terminal devices, and FIG. 1 takes the terminal device 1 and the terminal device 2 as examples.
  • the network device 200 may establish RRC connections with the terminal device 1 and the terminal device 2 respectively, and provide network services for the terminal device 1 and the terminal device 2 .
  • the communication module 1 in the network device 200 can communicate with the terminal device 1
  • the communication module 2 in the network device 200 can communicate with the terminal device 2 .
  • the network device 200 may provide the terminal device 1 and the terminal device 2 with network services of different standards.
  • the communication module 1 can provide the terminal device 1 with LTE network services, and the two can communicate through the Uu interface.
  • the communication module 2 can provide NR network services for the terminal device 2, and the two can communicate through the Uu interface. Further, communication between the communication module 1 and the communication module 2 can also be performed.
  • the network device may be an access network device, such as a radio access network (radio access network, RAN) device, which is a device that provides a wireless communication function for a terminal device.
  • the access network equipment includes, but is not limited to, a next-generation base station (generation nodeB, gNB ) in the fifth generation (5th generation, 5G), an evolved node B (evolved node B, eNB), and a remote radio unit (remote radio unit).
  • the access network device may also be a wireless controller, a central unit (central unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or a network
  • the device may be a relay station, a vehicle-mounted device, and a network device in a future evolved network, and the like.
  • a terminal device may be referred to as a terminal for short, such as a user equipment (user equipment, UE), which is a device with a wireless transceiver function.
  • Terminal equipment can be deployed on land (such as vehicles, vehicles, high-speed rail or motor vehicles, etc.); can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, drones, balloons and satellites, etc.) .
  • the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, and a wireless terminal device in telemedicine.
  • Terminal equipment wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home.
  • the terminal device may also be a relay terminal device, such as a mobile phone, a router, or an access device similar to a router deployed by an operator. This embodiment of the present application does not limit this.
  • the communication methods provided in the embodiments of the present application can be used in a spectrum sharing scenario between LTE and NR, and of course, can also be applied in other scenarios, which are not limited in the embodiments of the present application.
  • the NR cell bandwidth may be the same as the LTE cell bandwidth, as shown in FIG. 2 .
  • the NR cell bandwidth may be less than or equal to 20M.
  • the communication system shown in FIG. 1 is taken as an example, and does not constitute a limitation on the communication system to which the method provided by the embodiment of the present application is applicable.
  • the communication module 1 for implementing the LTE network function and the communication module 2 for implementing the NR network function may be components of the network device 200 (such as a processor, a chip or a chip system, etc.), that is, the network device 200 can implement the LTE Network functions can also implement NR network functions.
  • the communication module 1 for implementing the LTE network function and the communication module 2 for implementing the NR network function may be two independent network devices, and the two network devices may be in a co-located relationship. In this case, the thick line in Fig. 1 can be removed.
  • the communication module 1 is an LTE base station
  • the communication module 2 is an NR base station.
  • terminal device 1 may be an LTE UE
  • terminal device 2 may be an NR UE.
  • Spectrum sharing is a technology that can effectively improve spectrum utilization.
  • the existing spectrum of LTE is shared with NR signals, or the new spectrum of NR is shared with LTE signals.
  • LTE CRS is sent in full bandwidth. If the spectrum of LTE is directly shared with the NR signal, there will be time-frequency resource conflict between the LTE CRS and the NR signal.
  • the LTE base station can send the LTE CRS pattern to the NR base station.
  • the LTE base station transmits the CRS on the time-frequency resources corresponding to symbol 0, symbol 4, symbol 7, and symbol 11 in one subframe, as shown in FIG. 3 .
  • the NR base station can send data and the LTE CRS pattern to the NR UE according to the LTE CRS pattern, avoiding the time-frequency position of the LTE CRS, that is, the NR base station uses time-frequency resources other than the time-frequency resources occupied by the CRS.
  • the resource sends data to the NR UE, as shown in Figure 4.
  • the NR UE can analyze the data of the time-frequency position except the time-frequency position of the LTE CRS without analyzing the data of the time-frequency position of the LTE CRS according to the LTE CRS pattern, thereby realizing the spectrum sharing between LTE and NR.
  • the NR UE in the idle state wants to access the network and enters the connected state, the NR UE can search for the SSB broadcast by the NR base station, synchronize with the NR base station according to the SSB, and complete the RRC connection with the NR base station. Thus the NR UE accesses the network.
  • NR base stations can use LTE spectrum resources to send SSBs to improve spectrum resource utilization.
  • One SSB corresponds to one beam direction, and the NR base station can deploy single beam, dual beam or quad beam, etc.
  • the number of SSBs may be 1, 2, or 4, respectively.
  • the transmission period of the SSB can be 5ms, 10ms or 20ms, etc. Before the NR is not connected to the network, the transmission period of the SSB is usually 20ms.
  • the protocol defines that subframe #0, #1, #5 or #6 can be allocated to the SSB, and one SSB occupies 4 orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols (may be referred to as symbols for short).
  • OFDM orthogonal frequency division multiplexing
  • subframes #0 and #1 may be allocated to the SSBs, and 2 SSBs are transmitted in each subframe.
  • subframes #0, #1, #5 and #6 may be allocated to the SSBs.
  • the CRS occupies time-frequency resources corresponding to symbols 0, 4, 7, and 11; in subframe #1 Among them, the CRS occupies time-frequency resources corresponding to symbols 0, 4, and 7; in addition, the time-frequency resources corresponding to symbols 10 to 13 are used for uplink and downlink time slot conversion, as shown in FIG. 5 .
  • the first and second SSBs occupy symbols 2 to 5 and 8 to 11 of subframe #0, respectively, and the third and fourth SSBs occupy symbols 2 to 5 and 8 to 11 of subframe #1, respectively.
  • the first SSB collides with the CRS on symbol 4 of subframe #0
  • the second SSB collides with the CRS on symbol 11 of subframe #0
  • the third SSB collides with the CRS on symbol 4 of subframe #1
  • the CRS collides
  • the fourth SSB collides with the uplink and downlink time slot transitions.
  • the first and second SSBs occupy symbols 4 to 7 and 8 to 11 of the first half of subframe #0
  • the third and fourth SSBs occupy symbols 2 to 5 and 6 to 9 of the second half of subframe #0, respectively
  • the fifth , the six SSBs occupy symbols 4 to 7 and symbols 8 to 11 of the first half of subframe #1, respectively
  • the seventh and eight SSBs occupy symbols 2 to 5 and symbols 6 to 9 of the second half of subframe #1, respectively.
  • the second SSB collides with the CRS on symbol 4 of subframe #0
  • the fourth SSB collides with the CRS on symbol 4 of subframe #0
  • the sixth SSB collides with the CRS on symbol 4 of subframe #1
  • the CRS collides
  • the eighth SSB collides with the uplink and downlink time slot transitions.
  • the first and second SSBs occupy symbols 2 to 5 and 8 to 11 of the first half of subframe #0
  • the third and fourth SSBs occupy symbols 2 to 5 and 8 to 11 of the second half of subframe #0, respectively
  • the fifth , the six SSBs occupy symbols 2 to 5 and symbols 8 to 11 of the first half of subframe #1, respectively
  • the seventh and eight SSBs occupy symbols 2 to 5 and symbols 8 to 11 of the second half of subframe #1, respectively.
  • the second SSB collides with the CRS on symbol 4 of subframe #0
  • the fourth SSB collides with the CRS on symbol 4 of subframe #0
  • the sixth SSB collides with the CRS on symbol 4 of subframe #1
  • the CRS collides
  • the eighth SSB collides with the uplink and downlink time slot transitions.
  • LTE CRS and SSB have time-frequency resource conflicts, so NR base stations cannot deploy 4 beams and 8 beams.
  • CRS occupies time-frequency resources corresponding to symbols 0, 1, 4, 7, 8, and 11; in subframe #6, CRS occupies symbols Time-frequency resources corresponding to 0, 1, 4, 7, and 8; in addition, the time-frequency resources corresponding to symbols 10 to 13 are used for uplink and downlink time slot conversion, as shown in FIG. 6 .
  • the first and second SSBs occupy symbols 2 to 5 and 8 to 11 of subframe #5, respectively, and the third and fourth SSBs occupy symbols 2 to 5 and 8 to 11 of subframe #6, respectively.
  • the first SSB collides with CRS on symbol 4 of subframe #5
  • the second SSB collides with CRS on symbols 8 and 11 of subframe #5
  • the third SSB collides with symbol 4 of subframe #6
  • the CRS on the 4th SSB collides with the CRS on symbol 8 of subframe #6 and the time slot transition of uplink and downlink.
  • the first and second SSBs occupy symbols 4 to 7 and 8 to 11 of the first half of subframe #5, the third and fourth SSBs occupy symbols 2 to 5 and 6 to 9 of the second half of subframe #5, respectively, and the fifth , the six SSBs occupy symbols 4 to 7 and symbols 8 to 11 of the first half of subframe #6, respectively, and the seventh and eight SSBs occupy symbols 2 to 5 and symbols 6 to 9 of the second half of subframe #6, respectively.
  • the second SSB collides with the CRS on symbol 4 of subframe #5
  • the third SSB collides with the CRS on symbol 8 of subframe #5
  • the fourth SSB collides with the CRS on symbol 4 of subframe #5 CRS collision 11 CRS collision
  • the sixth SSB collides with the CRS on symbol 4 of subframe #6
  • the seventh SSB collides with the CRS on symbol 8 of subframe #6
  • the uplink and downlink time slot transitions collide.
  • CSC is 30kHz and L is 8.
  • the first and second SSBs occupy symbols 2 to 5 and 8 to 11 of the first half of subframe #5, the third and fourth SSBs occupy symbols 2 to 5 and 8 to 11 of the second half of subframe #5, respectively, and the fifth , the six SSBs occupy symbols 2 to 5 and symbols 8 to 11 of the first half of subframe #6, respectively, and the seventh and eight SSBs occupy symbols 2 to 5 and symbols 8 to 11 of the second half of subframe #6, respectively.
  • the first SSB collides with the CRS on symbol 1 of subframe #5, the second SSB collides with the CRS on symbol 4 of subframe #5, and the third SSB collides with the CRS on symbol 8 of subframe #5 CRS collision
  • the fourth SSB collides with the CRS on symbol 11 of subframe #5
  • the fifth SSB collides with the CRS on symbol 1 of subframe #6
  • the sixth SSB collides with the CRS on symbol 4 of subframe #6
  • the CRS collides
  • the seventh SSB collides with the CRS on symbol 8 of subframe #6
  • the fourth SSB collides with the CRS on symbol 11 of subframe #5
  • the eighth SSB collides with the uplink and downlink time slot transitions.
  • LTE CRS and SSB Under the 4-port TDD, whether it is 4 beams (4 SSBs) or 8 beams (SSB), LTE CRS and SSB also have time-frequency resource conflicts, so NR base stations cannot deploy 4 beams and 8 beams.
  • the subframes occupied by the SSB can be configured as MBSFN subframes to avoid CRS.
  • LTE CRS only occupies symbol 1, as shown in Figure 7.
  • the protocol defines that the subframe numbers that LTE can configure as MBSFN are #1, #2, #3, #6, #7 and #8, and the subframes occupied by SSB are #0 and #1 (or #0, #1). 1, #5 and #6).
  • the LTE base station can inform the NR base station of the location of the MBSFN subframe, so that the NR base station sends the SSB on the MBSFN subframe, which means that the subframe number on the LTE base station side is aligned with the subframe number on the NR base station side, In this way, one or more subframes occupied by the SSB cannot all be MBSFN subframes (eg, subframe #0), resulting in time-frequency resource conflict between the NR SSB and the LTE CRS.
  • embodiments of the present application provide a communication method, apparatus, and system to avoid time-frequency resource conflict between NR SSB and LTE CRS in spectrum sharing.
  • NR SSB may be referred to as SSB for short
  • LTE CRS may be referred to as CRS for short.
  • plality refers to two or more than two. In view of this, “plurality” may also be understood as “at least two” in the embodiments of the present application. “At least one” can be understood as one or more, such as one, two or more. For example, including at least one refers to including one, two or more, and does not limit which ones are included. For example, including at least one of A, B, and C, then including A, B, C, A and B, A and C, B and C, or A and B and C.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority, or importance of multiple objects.
  • FIG. 8 shows a schematic flowchart of a communication method provided by an embodiment of the present application, and the method may be applied to the communication system 100 described in FIG. 1 .
  • the first network device may be the communication module 1 shown in FIG. 1
  • the second network device may be the communication module 2 shown in FIG. 1
  • the second terminal device may be the terminal device 1 shown in FIG. 1
  • the first terminal The device may be the terminal device 2 shown in FIG. 1 , that is, the first network device may provide the LTE network service for the second terminal device, and the second network device may provide the NR network service for the first terminal device.
  • a schematic flowchart of the method can be as follows.
  • S801 The second network device sends the first location to the first network device. Accordingly, the first network device receives the first location.
  • the second network device may send the first location to the first network device, where the first location may be used to configure the MBSFN subframe.
  • the first position may be a position of one or more subframes occupied by the first information.
  • the first position may be a subframe number.
  • the first information may refer to an NR signal that has time-frequency resource conflict with the LTE CRS.
  • the first information may refer to an NR signal that may still collide with the LTE CRS in time-frequency resources when the MBSFN subframe is used.
  • the first information may be one or more of the following information.
  • the SSB which can be used for synchronization between NR UE and NR base station.
  • the SSB may occupy at least one of subframes #0, #1, #5, or #6.
  • the SSB and the CRS have time-frequency resource conflict.
  • the SSB and the CRS have time-frequency resource conflict.
  • the SSB and the CRS have time-frequency resource conflict.
  • SIB system information block
  • the SIB may occupy at least one of subframes #2, #3, #4, or #5, and so on.
  • the SIB occupies subframe 5 the SSB and the CRS have time-frequency resource conflict.
  • OSI other system information
  • the OSI may occupy subframe #5 and/or subframe #7, etc.
  • the OSI and the CRS have a time-frequency subframe conflict.
  • Paging message which can be used to send a call request to an NR UE in an idle state.
  • the paging message may occupy at least one of subframes #2, #3, or #5, and so on.
  • the paging message and the CRS have time-frequency resource overlap.
  • the technical solution adapted to the SSB can also be adapted to other NR signals (such as SIB, OSI, or paging messages, etc.) that have time-frequency resource conflicts with the CRS.
  • NR signals such as SIB, OSI, or paging messages, etc.
  • the second network device may configure a subframe for the SSB, and send the first position to the first network device through RRC signaling.
  • the second network device may determine the number of SSBs according to the number of deployed beams, and then configure subframes for the SSBs based on the number of SSBs and a transmission period of the SSBs.
  • the number of SSBs is 1, the transmission period of the SSBs is 20ms, the second network device may configure subframe #1 to the SSB, and the first position is subframe #1.
  • the number of SSBs is 4, the transmission period of SSBs is 20ms, the second network device may configure subframe #0 and subframe #1 to the SSB, and the first position is subframe #0 and subframe #1.
  • the number of SSBs is 4, the transmission period of SSBs is 5ms, the second network device may configure subframes #0, #1, #5 and #6 to the SSB, and the first position is subframes #0, # 1, #5 and #6.
  • the second network device may send the number of SSBs to the first network device.
  • the first network device receives the number of SSBs.
  • the second network device may send the number of SSBs to the first network device through RRC signaling.
  • the first network device determines a first offset.
  • the first network device may determine a first offset, where the first offset may be used to cause one or more subframes occupied by the SSB to fall within the position range of the MBSFN subframe after being offset by the first offset.
  • the first offset may be an integer greater than or equal to 1 and less than or equal to 9.
  • the first network device may determine the first offset according to the first location and the first range.
  • the first range may be the position supporting the configuration of the MBSFN subframe, that is, the subframe number defined by the protocol that can be configured as the MBSFN.
  • the first range may be subframes #1, #2, #3, #6, #7, and #8, as shown in FIG. 9 .
  • the subframes occupied by the SSB are subframes #0 and #1, and the first network device may determine that the first offset is any one of 1, 2, 6, or 7.
  • the subframes occupied by the SSB are subframes #0, #1, #5, and #6, and the first network device may determine that the first offset is 2 or 3.
  • the first network device can determine the first offset according to the first position and the first range, where the first range supports The position of the MBSFN subframe is configured, in this way, it can be ensured that the position of one or subframe occupied by the first information after being shifted by the first offset amount can be configured as an MBSFN subframe.
  • the first offset may be predefined by the system.
  • the system predefines the first offset as 1.
  • the first network device and the second network device may also pre-agree that the first offset is 1 or 2.
  • the first network device configures the MBSFN subframe.
  • the first network device may configure one or more MBSFN subframes.
  • the first network device may configure one or more MBSFN subframes within the first range, for example, configure subframe #1 and subframe #2 as MBSFN subframes.
  • the first network device may configure one or more MBSFN subframes within the first range according to a predefined definition, for example, the first network device and the second network device pre-agreed to configure the number of MBSFN subframes and the positions of the MBSFB subframes.
  • the first network device may configure one or more MBSFN subframes according to the first position and the first offset.
  • the first network device may configure one or more MBSFN subframes within the first range according to the first position and the first offset. For example, the first network device may first determine the second position according to the first position and the first offset, and then configure one or more MBSFN subframes according to the second position.
  • the second position may be a position after the first position is shifted by the first offset, that is, the subframe number after the subframe number where the SSB is located is shifted by the first offset.
  • the second position may be located within the first range, so that the position of the MBSFN subframe may include the second position, so as to ensure that the position of one or more subframes occupied by the SSB can fall within the Within the range of the configured MBSFN subframe, the second network device can send the SSB on the MBSFN subframe, avoiding time-frequency resource conflict between the SSB and the CRS, and realizing spectrum sharing between LTE and NR.
  • the first network device may first determine, according to the first position and the first offset, a position where the first position is shifted by the first offset, that is, the second position, and then configure the MBSFN subframe based on the second position , to ensure that the position of the MBSFN subframe includes the second position.
  • the first network device may configure subframe #1 and subframe #2 as MBSFN subframes according to the second position; or, may configure subframes #1, #2 and #3 as MBSFN subframes; or, may Configure subframes #1, #2 and #6 as MBSFN subframes; alternatively, configure subframes #1, #2 and #7 as MBSFN subframes; or configure subframes #1, #2 and #8 as MBSFN subframes MBSFN subframes; or, subframes #1, #2, #3, and #6 may be configured as MBSFN subframes; or, subframes #1, #2, #3, and #7 may be configured as MBSFN subframes; or, Subframes #1, #2, #3, and #8 can be configured as MBSFN subframes; or, #1,
  • #6 and #8 are MBSFN subframes; or, #1, #2, #7, and #8 can be configured as MBSFN subframes; or, subframes #1, #2, #3, #6 can be configured , #7 and #8 are MBSFN subframes.
  • the first offset is 2, the first position is subframes #0, #1, #5, and #6, and the first position is shifted by the first offset to subframes #2, #3, #7 and #8, that is, the second positions may be subframes #2, #3, #7 and #8.
  • the first network device may configure subframes #2, #3, #7 and #8 as MBSFN subframes according to the second position; or, may configure subframes #1, #2, #3, #7 and #8 is an MBSFN subframe; alternatively, subframes #2, #3, #6, #7 and #8 can be configured as MBSFN subframes; alternatively, subframes #1, #2, #3, #6 can be configured , #7 and #8 are MBSFN subframes.
  • the execution sequence of the foregoing steps S802 and S803 is only an example, which is not limited in this embodiment of the present application.
  • the first network device may configure the MBSFN subframe first, and then determine the first offset.
  • the first network device may configure one or more subframes as MBSFN according to a predefined definition, and then determine the first offset according to the position of the MBSFN subframe and the first position, that is, step S803 is executed first and then step S802 is executed .
  • the first network device may configure subframes #1, #2 and #3 as MBSFNs according to a pre-definition, and the first positions are subframes #0 and #1.
  • the first network device may determine the first offset to be 1 or 2 according to the position of the MBSFN subframe and the first position, so as to ensure that the first position can fall within the MBSFN subframe after being shifted by the first offset. the position of the frame.
  • the first network device may configure subframes #1, #2, #3, #6, #7 and #8 as MBSFN according to the negotiation result with the second network device in advance, and the first position is subframe # 0, #1, #5, and #6.
  • the first network device may determine the first offset to be 1 or 2 according to the position of the MBSFN subframe and the first position, so as to ensure that the first position can fall within the MBSFN subframe after being shifted by the first offset. the position of the frame.
  • the first network device sends the first offset and the first MBSFN configuration information to the second network device. Accordingly, the second network device receives the first offset and the first MBSFN configuration information.
  • the first network device may send the first offset and the first MBSFN configuration information to the second network device.
  • the first network device may send the first offset and the first MBSFN configuration information to the second network device through RRC signaling.
  • the first MBSFN configuration information may be used to determine the configuration state of the MBSFN subframe within the first range, or may be used to indicate the position of the MBSFN subframe.
  • the first network device may send the first MBSFN configuration information to the second network device in a 0/1 manner.
  • 0 may indicate that the subframe is not configured with MBSFN
  • 1 may indicate that the subframe is configured with MBSFN.
  • the first MBSFN configuration information may be represented as 110000.
  • the first MBSFN configuration information may be represented as 110 001.
  • the first MBSFN configuration information may be represented as 111 111. It can be understood that the first network device may also use other manners to indicate the location of the MBSFN subframe, which is not limited in this embodiment of the present application.
  • the first network device may send the first MBSFN configuration information to the second terminal device.
  • the second network device sends the first information to the first terminal device on the time domain resource corresponding to the second location. Accordingly, the first terminal device receives the first information.
  • the second network device may send the first information to the first terminal device on the time domain resource corresponding to the second location.
  • the second network device may determine the second position according to the first offset and the first position, and then send the SSB to the first terminal device on the time domain resource corresponding to the second position.
  • the second network device when the second network device sends the first information to the first terminal device on the time domain resource corresponding to the second location, it can be understood that the second network device delays sending the first information to the first terminal device by the first offset.
  • a piece of information which means that the subframe numbers on the side of the first network device are not aligned with the subframe numbers on the side of the second network device.
  • subframe #0 on the first network device side corresponds to subframe #9 on the second network device side
  • subframe #1 on the first network device side corresponds to the first Two subframe #0 on the network device side
  • subframe #2 on the first network device side corresponds to subframe #1 on the second network device side
  • subframe #3 on the first network device side corresponds to subframe #3 on the second network device side Frame #2
  • subframe #4 on the first network device side corresponds to subframe #3 on the second network device side
  • subframe #5 on the first network device side corresponds to subframe #4 on the second network device side
  • the first Subframe #6 on the network device side corresponds to subframe #5 on the second network device side
  • subframe #7 on the first network device side corresponds to subframe #6 on the second network device side
  • subframe on the first network device side #8 corresponds to subframe #7 on the side of the second network device
  • subframe #9 on the side of the first network device corresponds to subframe #8 on the side
  • the MBFSN subframes are subframe #1 and subframe #2
  • the first offset is 1
  • the first position is subframe #0 and subframe #1
  • the first position offset by the first offset is subframe #1 and subframe #2, that is, the second position is subframe #1 and subframe #2, that is, the subframe number corresponding to the first network device side is Subframe #1 and Subframe #2.
  • the second network device may send the SSB to the second terminal device on subframe #1 and subframe #2 of the NR. Since the second network device performs subframe offset according to the first offset before sending the SSB, it is equivalent to the second network device delaying the sending of the SSB by the first offset.
  • NR subframe #0 and subframe #1 can actually correspond to LTE subframe 1 and subframe #2, while LTE subframe 1 and subframe #2 are MBSFN subframes, that is, SSB is sent on MBSFN subframes , so that the time-frequency resource conflict between the SSB and the CRS can be avoided, as shown in FIG. 11 .
  • one or more subframes corresponding to the second position include a first subframe, the first subframe is located outside the second range, and the second range is the first range offset by the first offset range after shifting.
  • the second network device may send the first indication information to the first terminal device.
  • the first indication information may be used to instruct the second terminal device to perform rate matching on the time domain resource corresponding to the first subframe.
  • the first subframe may be subframe #0, or the first subframe may be subframe #5, or the first subframe may be subframe #0 and subframe #5.
  • the first range can be understood as the location range where the first network device supports configurable MBSFN subframes
  • the second range can be understood as the location range where the second network device supports configurable MBSFN subframes offset by the first offset Then, it corresponds to the subframe range on the side of the first network device.
  • the second network device sends the first information to the first terminal device according to the time domain resource corresponding to the second position, the second position falls into the position of the MBSFN subframe, but one or more subframes corresponding to the offset of the first position
  • the frame may be located outside the second range, such as the first subframe, which means that the second network device cannot notify the first terminal device of the configuration state that the first subframe is an MBSFN subframe. Therefore, the second network device may send the first indication information to the first terminal device to instruct the first terminal device to perform rate matching on the time domain resources corresponding to the first subframe, so as to successfully acquire the first information and/or downlink data .
  • the first range is subframes #1, #2, #3, #6, #7, and #8, and the MBSFN subframes are subframes #1, #2, and #3.
  • the second range is the range after the first range is offset by the first offset, that is, the second range is subframe #2, #3, #4, #7, #8, and #9, and the first position is subframe # 0 and subframe #1, then the second position is subframe #1 and subframe #2.
  • subframe #0 is subframe #1 to the side of the first network device, that is, the first network device sends the SSB on the MBSFN subframe, but for the first network device,
  • This subframe #0 is not within the range defined by the protocol as MBSFN subframes, because the first network device can notify the first terminal device that subframes 1, #2, #3, #6, #7, and #8 are on Whether to configure MBSFN, therefore, the first network device cannot notify the first terminal device of the configuration state that subframe #0 is an MBSFN subframe.
  • the second network device may send the first indication information to the first terminal device to instruct the first terminal device to perform rate matching on the time domain resources corresponding to the first subframe, so as to successfully acquire the first information and/or or data, so as to realize spectrum sharing between NR and LTE.
  • the second network device may send the second MBSFN configuration information to the first terminal device.
  • the second MBSFN configuration information may be used to determine a configuration state of the MBSFN subframe within the second range, or may be used to indicate a valid MBSFN subframe of the MBSFN subframe within the second range.
  • the first network device can send the second MBSFN configuration information to the first terminal device, so that the first terminal device can obtain the first information and / or downstream data.
  • the first range is subframes #1, #2, #3, #6, #7 and #8, and the second range is subframes #2, #3, #4, #7, #8 and #9.
  • the MBSFN subframes are subframes #1, #2 and #3, and the corresponding first MBSFN configuration information may be 111 000.
  • the subframes #0, #1 and #2 in the NR subframe are for the MBSFN subframe in LTE.
  • the subframes that can be configured as MBSFN are still #1, #2, #3, #6, #7 and #8, that is, the NR subframe #1 corresponds to the LTE subframe #2, and the NR subframe #1 corresponds to the LTE subframe #2.
  • Frame #2 corresponds to LTE subframe #3
  • NR subframe #3 corresponds to LTE subframe #4
  • LTE subframe #4 does not support configuring MBSFN subframes, so the NR base station can set NR subframe #3 to 0, that is
  • the second MBSFN configuration information is 110 000, as shown in FIG. 12 .
  • the second MBSFN configuration information may include second indication information, where the second indication information may be used to instruct the second terminal device to perform rate matching on time domain resources corresponding to the second subframe.
  • the second subframe may be an MBSFN subframe, and the second subframe is located outside the first range after being offset by the first offset.
  • the MBSFN subframe configured by the first network device may fall outside the first range after being offset by the first offset, such as the second subframe.
  • the location of the second subframe may be configured as an MBSFN subframe, that is, the second network device may notify whether the second subframe is configured with an MBSFN subframe.
  • the location of the second subframe cannot be configured as an MBSFN subframe, so the second network device can set the configuration state of the MBSFN subframe corresponding to the second subframe to 0 to indicate that the first The terminal device performs rate matching on the time domain resources corresponding to the second subframe.
  • the second subframe may be subframe #3 and subframe #8 in the NR subframe.
  • the second network device may send the second indication information to the first terminal device.
  • the second network device may send the second indication information to the first terminal device through RRC signaling.
  • the second indication information may be used to instruct the first terminal device to perform rate matching on the time domain resource corresponding to the second subframe.
  • the second subframe may be an MBSFN subframe, and the second subframe is located outside the first range after being offset by the first offset.
  • the second network device can instruct the first terminal device to perform rate matching on the time domain resources corresponding to the second subframe by means of MBSFN configuration information, so as to successfully acquire the first information and/or downlink data, and can also send The first terminal device sends second indication information, where the second indication information can be used to instruct the first terminal device to perform rate matching on the time domain resources corresponding to the second subframe to successfully acquire the first information and/or data.
  • the first network device may determine the first offset and configure the MBSFN subframes according to the positions of one or more subframes occupied by the first information.
  • the first offset can be used to determine a second position, where the one or more subframes are offset by the first offset, and the second position is within a position that supports configuring MBSFN subframes , that is, the position of the configured MBSFN subframe includes the second position. It means that the position of one or more subframes occupied by the first information can fall within the position of the MBSFN subframe after being shifted by the first offset, that is, the second network device can The amount of first information is sent on MBSFN subframes.
  • sending the first information on the MBSFN subframe can avoid the time-frequency resource between the first information and the CRS.
  • Conflict to achieve spectrum sharing between LTE and NR.
  • the methods provided by the embodiments of the present application are respectively introduced from the perspectives of the first network device, the second network device, and the interaction between the two.
  • the first network device and the second network device may include hardware structures and/or software modules, in the form of hardware structures, software modules, or hardware structures plus software modules. realize the above functions. Whether one of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • FIG. 13 shows a schematic structural diagram of a communication apparatus 1300 .
  • the communication apparatus 1300 may be the first network device in the embodiment shown in FIG. 8, and can implement the function of the first network device in the method provided by the embodiment of the present application; the communication apparatus 1300 may also be capable of supporting the first network
  • the device implements the function of the first network device in the method provided by the embodiment of the present application.
  • the communication apparatus 1300 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication apparatus 1300 may be implemented by a chip system. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication apparatus 1300 may include a processing unit 1301 and a communication unit 1302 .
  • the communication unit 1302 may be configured to receive a first position from the second network device, where the first position is a position of one or more subframes occupied by the first information.
  • the processing unit 1301 can be used to determine the first offset, the first offset is used to determine the second position, the second position is the position after the first position is shifted by the first offset, and the second position is located in the first position.
  • the first range is the position supporting the configuration of the multicast/multicast single frequency network MBSFN subframe; and, the MBSFN subframe is configured, and the position of the MBSFN subframe includes the second position.
  • the communication unit 1302 may also be configured to send the first offset and the first MBSFN configuration information to the second network device, where the first MBSFN configuration information is used to determine the configuration state of the MBSFN subframe within the first range.
  • the processing unit 1301 may be configured to: configure the MBSFN subframe according to the first position and the first offset.
  • the processing unit 1301 may be configured to: determine the first offset according to the first position and the first range.
  • the first offset is an integer greater than 0 and less than 10.
  • the first information includes a synchronization signal and at least one of a physical broadcast channel block, a system information block, other system information, or a paging message.
  • the communication unit 1302 is used for the communication device 1300 to communicate with other modules, and it can be a circuit, a device, an interface, a bus, a software module, a transceiver or any other device that can realize communication.
  • the division of modules in the embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one processing unit. In the device, it can also exist physically alone, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • FIG. 14 shows a schematic structural diagram of a communication apparatus 1400 .
  • the communication apparatus 1400 may be the second network device in the embodiment shown in FIG. 8 , which can implement the function of the second network device in the method provided by the embodiment of the present application; the communication apparatus 1400 may also be capable of supporting the second network device.
  • the communication apparatus 1400 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication apparatus 1400 may be implemented by a chip system. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication apparatus 1400 may include a processing unit 1401 and a communication unit 1402 .
  • the communication unit 1402 may be configured to send the first position to the first network device, where the first position is the position of one or more subframes occupied by the first information; receive the first offset and the first offset from the first network device Multicast/multicast single-frequency network MBSFN configuration information, wherein the first MBSFN configuration information is used to determine the configuration state of the MBSFN subframe within a first range, and the first range is the position supporting the configuration of the MBSFN subframe; and, used for On the time domain resource corresponding to the second position, the first information is sent to the first terminal device, where the second position is a position after the first position is offset by the first offset, and the position of the MBSFN subframe includes the second position .
  • one or more subframes corresponding to the second position include a first subframe, and the first subframe is located outside a second range, where the second range is offset by the first range. the range after the first offset, the communication unit 1402 is further configured to: send first indication information to the first terminal device, where the first indication information is used to instruct to perform rate matching on the time domain resources corresponding to the first subframe .
  • the communication unit 1402 is further configured to: send second MBSFN configuration information to the first terminal device, where the second MBSFN configuration information is used to determine the configuration state of the MBSFN subframe in the second range, the The second range is a range in which the first range is shifted by the first offset.
  • the MBSFN subframe includes a second subframe, the second subframe is offset by a first offset and is located outside the first range, the second MBSFN configuration information includes second indication information, and the second subframe is offset by a first offset.
  • the indication information is used to indicate that rate matching is performed on the time domain resource corresponding to the second subframe.
  • the MBSFN subframe includes a second subframe, and the second subframe is located outside the first range after being offset by the first offset.
  • the communication unit 1402 is further configured to: send the first terminal device Send second indication information, where the second indication information is used to indicate that rate matching is performed on time domain resources corresponding to the second subframe.
  • the first offset is an integer greater than 0 and less than 10.
  • the first information includes a synchronization signal and at least one of a physical broadcast channel block, a system information block, other system information, or a paging message.
  • the communication unit 1402 is used for the communication unit 1400 to communicate with other modules, and it can be a circuit, a device, an interface, a bus, a software module, a transceiver or any other device that can realize communication.
  • the division of modules in the embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one processing unit. In the device, it can also exist physically alone, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • FIG. 15 shows a communication apparatus 1500 provided in an embodiment of the present application, where the communication apparatus 1500 may be the first network device in the embodiment shown in FIG. 8 , and can implement the first network in the method provided by the embodiment of the present application
  • the function of the device; the communication apparatus 1500 may also be an apparatus capable of supporting the first network device to implement the function of the first network device in the method provided in the embodiment of the present application.
  • the communication apparatus 1500 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the above-mentioned communication unit 1302 may be a transceiver, and the transceiver is integrated in the communication device 1500 to form a communication interface 1510 .
  • the communication apparatus 1500 includes at least one processor 1520, which is configured to implement or support the communication apparatus 1500 to implement the function of the first network device in the method provided in this embodiment of the present application.
  • the processor 1520 may determine the first offset and configure the MBSFN subframe according to the detailed description in the method example, which will not be repeated here.
  • Communication apparatus 1500 may also include at least one memory 1530 for storing program instructions and/or data.
  • Memory 1530 and processor 1520 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 1520 may cooperate with memory 1530.
  • Processor 1520 may execute program instructions stored in memory 1530 . At least one of the at least one memory may be included in the processor.
  • the communication apparatus 1500 may also include a communication interface 1510 for communicating with other devices through a transmission medium, so that the devices used in the communication apparatus 1500 may communicate with other devices.
  • the other device may be a second network device or a second terminal device.
  • the processor 1520 may use the communication interface 1510 to send and receive data.
  • the communication interface 1510 may specifically be a transceiver.
  • the specific connection medium between the communication interface 1510 , the processor 1520 , and the memory 1530 is not limited in the embodiments of the present application.
  • the memory 1530, the processor 1520, and the communication interface 1510 are connected through a bus 1540 in FIG. 15.
  • the bus is represented by a thick line in FIG. 15, and the connection between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 15, but it does not mean that there is only one bus or one type of bus.
  • the processor 1520 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may implement Alternatively, each method, step, and logic block diagram disclosed in the embodiments of the present application are executed.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory 1530 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), Such as random-access memory (random-access memory, RAM).
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and/or data.
  • FIG. 16 shows a communication apparatus 1600 provided in this embodiment of the present application, where the communication apparatus 1600 may be the second network device in the embodiment shown in FIG. 8 , and can implement the second network in the method provided by the embodiment of the present application
  • the function of the device; the communication apparatus 1600 may also be an apparatus capable of supporting the second network device to implement the function of the second network device in the method provided by the embodiment of the present application.
  • the communication apparatus 1600 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the above-mentioned communication unit 1402 may be a transceiver, and the transceiver is integrated in the communication device 1600 to form a communication interface 1610 .
  • the communication apparatus 1600 includes at least one processor 1620, configured to implement or support the communication apparatus 1600 to implement the function of the second network device in the method provided in this embodiment of the present application.
  • the processor 1620 may determine the second position according to the first offset. For details, please refer to the detailed description in the method example, which will not be repeated here.
  • Communication apparatus 1600 may also include at least one memory 1630 for storing program instructions and/or data.
  • Memory 1630 and processor 1620 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 1620 may cooperate with memory 1630.
  • Processor 1620 may execute program instructions stored in memory 1630 . At least one of the at least one memory may be included in the processor.
  • the communication apparatus 1600 may also include a communication interface 1610 for communicating with other devices through a transmission medium, so that the apparatus used in the apparatus 1600 may communicate with other devices.
  • the other device may be a first network device or a first terminal device.
  • the processor 1620 may utilize the communication interface 1610 to send and receive data.
  • the communication interface 1610 may specifically be a transceiver.
  • connection medium between the communication interface 1610, the processor 1620, and the memory 1630 is not limited in the embodiments of the present application.
  • the memory 1630, the processor 1620, and the communication interface 1610 are connected through a bus 1640 in FIG. 16.
  • the bus is represented by a thick line in FIG. 16, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is shown in FIG. 16, but it does not mean that there is only one bus or one type of bus.
  • the processor 1620 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may implement Alternatively, each method, step, and logic block diagram disclosed in the embodiments of the present application are executed.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory 1630 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), Such as random-access memory (random-access memory, RAM).
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and/or data.
  • Embodiments of the present application further provide a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute the method executed by the first network device in the foregoing embodiments.
  • Embodiments of the present application further provide a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute the method executed by the second network device in the foregoing embodiments.
  • Embodiments of the present application also provide a computer program product, including instructions, which, when executed on a computer, cause the computer to execute the method executed by the first network device in the foregoing embodiments.
  • Embodiments of the present application further provide a computer program product, including instructions, which, when executed on a computer, cause the computer to execute the method executed by the second network device in the foregoing embodiments.
  • An embodiment of the present application provides a chip system, where the chip system includes a processor, and may further include a memory, for implementing the function of the first network device in the foregoing method.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • An embodiment of the present application provides a chip system, where the chip system includes a processor, and may further include a memory, for implementing the function of the second network device in the foregoing method.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • An embodiment of the present application provides a communication system, where the communication system includes the foregoing first network device and second network device.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented in software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable apparatus.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center by means of wired (such as coaxial cable, optical fiber, digital subscriber line, DSL for short) or wireless (such as infrared, wireless, microwave, etc.)
  • a computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media.
  • the available media can be magnetic media (eg, floppy disks, hard disks, magnetic tape), optical media (eg, digital video disc (DVD) for short), or semiconductor media (eg, SSD), and the like.

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Abstract

一种通信方法、装置及系统，该方法可以由第一网络设备执行，或者由第一网络设备的部件(如处理器、芯片或芯片系统等)执行。在该方法中，第一网络设备接收来自第二网络设备的第一位置，第一位置是第一信息占用的一个或多个子帧的位置；确定第一偏移量以及配置MBSFN子帧，第一偏移量用于确定第二位置，第二位置是第一位置偏移第一偏移量后的位置，第一范围为支持配置MBSFN子帧的位置，MBSFN子帧的位置包括第二位置；以及，向第二网络设备发送第一偏移量和第一MBSFN配置信息。通过该方法，第二网络设备可以在MBSFN子帧上发送第一信息，从而避免第一信息与CRS之间的时频资源冲突，实现NR与LTE的频谱共享。

Description

一种通信方法、装置及系统 技术领域
本申请涉及无线通信技术领域，尤其涉及一种通信方法、装置及系统。
背景技术
频谱共享是一种将长期演进(long term evolution，LTE)的现有频谱共享给新空口(new radio，NR)信号，或者将NR的新频谱共享给LTE信号的技术，能够有效提升频谱利用率。
LTE的小区参考信号(cell reference signal，CRS)是全带宽发送的，直接将LTE的频谱共享给NR信号，会导致LTE CRS与NR信号之间存在时频资源冲突。目前，LTE基站可以向NR基站发送LTE小区参考信号(cell reference signal，CRS)图样；NR基站可以根据接收到的LTE CRS图样，避开LTE CRS的时频位置向NR终端设备发送数据以及LTE CRS图样；这样，NR终端设备可以按照LTE CRS图样，不解析LTE CRS所在时频位置的数据，而解析除了LTE CRS的时频位置之外的时频位置的数据，从而实现LTE与NR的频谱共享。
在NR终端设备接入网络之前，NR终端设备无法获取LTE CRS图样。在此情况下，LTE基站可以将部分子帧配置为多播/组播单频网络(multicast broadcast single frequency network，MBSFN)子帧，该MBSFN子帧可以使得NR的同步信号和物理广播信道块(synchronization signal and physical broadcast channel block，SSB)避开LTE CRS的干扰，从而NR终端设备在没有LTE CRS图样的情况下也能实现LTE与NR的频谱共享。
但是，协议支持的LTE可配置为MBSFN的子帧编号为#1、#2、#3、#6、#7以及#8，即LTE基站只能将该6个子帧中的部分或全部配置为MBSFN子帧，而4波束下NR SSB占用的子帧编号为#0以及#1，意味着，NR SSB占用的子帧不能全部对应到MBSFN子帧上(如子帧#0)，导致NR SSB与LTE CRS之间存在时频资源冲突。
发明内容
本申请实施例提供了一种通信方法、装置及系统，用以避免频谱共享中NR SSB与LTE CRS之间的时频资源冲突。
第一方面，本申请实施例提供一种通信方法，该方法可以由第一网络设备执行，或者由第一网络设备的部件(如处理器、芯片或芯片系统等)执行。在该方法中，第一网络设备接收来自第二网络设备的第一位置，第一位置是第一信息占用的一个或多个子帧的位置；确定第一偏移量，第一偏移量用于确定第二位置，第二位置是第一位置偏移第一偏移量后的位置，且第二位置位于第一范围内，第一范围为支持配置多播/组播单频网络MBSFN子帧的位置；配置MBSFN子帧，MBSFN子帧的位置包括第二位置；以及，向第二网络设备发送第一偏移量和第一MBSFN配置信息，第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态。
可选的，第一网络设备和第二网络设备可以为终端设备提供不同制式的网络服务。例 如，第一网络设备可以为用于实现LTE网络服务功能的模块或设备，第二网络设备可以为用于实现NR网络服务功能的模块或设备。
通过该方法，第一网络设备可以根据第一信息占用的一个或多个子帧的位置，确定第一偏移量和配置MBSFN子帧。该第一偏移量可用于确定第二位置，该第二位置为该一个或多个子帧偏移第一偏移量后的位置，且该第二位置位于支持配置MBSFN子帧的位置之内，也即是配置的MBSFN子帧的位置包括第二位置。意味着，第一信息占用的一个或多个子帧的位置在偏移第一偏移量之后，可以落入MBSFN子帧的位置之内，也就是说，第二网络设备可以根据第一偏移量在MBSFN子帧上发送第一信息。由于MBSFN子帧中CRS仅位于PDCCH对应的时频资源上，在PDSCH对应的时频资源上没有CRS，所以，在MBSFN子帧上发送第一信息可以避免第一信息与CRS之间时频资源冲突，实现LTE与NR的频谱共享。
在一种可能的设计中，第一网络设备配置MBSFN子帧，包括：第一网络设备可以根据第一位置和第一偏移量，配置MBSFN子帧。
通过该设计，第一网络设备可以根据第一信息占用的一个或多个子帧的位置以及第一偏移量，来配置MBSFN子帧，以确保第一信息占用的一个或多个子帧的位置偏移第一偏移量后能够落入配置好的MBSFN子帧的位置范围内，从而第二网络设备可以在MBSFN子帧上发送第一信息，避免第一信息与CRS之间时频资源冲突，实现LTE与NR的频谱共享。例如，第一网络设备可以先根据第一位置和第一偏移量，确定第一位置偏移第一偏移量后的位置，即第二位置，然后，基于该第二位置配置MBSFN子帧，以确保MBSFN子帧的位置包括该第二位置。
在一种可能的设计中，第一网络设备确定第一偏移量，包括：第一网络设备可以根据第一位置和第一范围，确定第一偏移量。
通过该设计，由于一帧中并不是所有子帧皆可以配置为MBSFN子帧，所以，第一网络设备可以根据第一位置和第一范围来确定第一偏移量，该第一范围为支持配置MBSFN子帧的位置，这样，能够确保第一信息占用的一个或子帧在偏移第一偏移量后所在的位置，皆能够配置为MBSFN子帧。
在一种可能的设计中，第一偏移量为大于0且小于10的整数。通过该设计，一帧中包括10个子帧，该第一偏移量可以为大于0且小于10的整数。
在一种可能的设计中，第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。通过该设计，第一信息可以为在使用MBSFN子帧的情况下仍然可能与CRS存在时频资源冲突的NR信号，例如，SSB，系统信息块，其它系统信息或寻呼消息中的一项或多项。
第二方面，本申请实施例提供一种通信方法，该方法可以由第二网络设备执行，或者由第二网络设备的部件(如处理器、芯片或芯片系统等)执行。在该方法中，第二网络设备可以向第一网络设备发送第一位置，第一位置是第一信息占用的一个或多个子帧的位置；接收来自第一网络设备的第一偏移量和第一多播/组播单频网络MBSFN配置信息，其中，第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态，第一范围为支持配置MBSFN子帧的位置；以及，在第二位置对应的时域资源上，向第一终端设备发送第一信息，其中，第二位置是第一位置偏移第一偏移量后的位置，MBSFN子帧的位置包括第二位置。
可选的，第一网络设备和第二网络设备可以为终端设备提供不同制式的网络服务。例如，第一网络设备可以为用于实现LTE网络服务功能的模块或设备，第二网络设备可以为用于实现NR网络服务功能的模块或设备。
通过该方法，第二网络设备可将第一信息占用的一个或多个子帧的位置发送给第一网络设备，这样，第一网络设备可根据第一信息占用的一个或多个子帧的位置确定第一偏移量和配置MBSFN子帧。第二网络设备可以接收来自第一网络设备的第一偏移量和第一MBSFN子帧，这样，第二网络设备可以根据第一偏移量确定第一信息占用的一个或多个子帧偏移第一偏移量后的位置，即第二位置，然后在该第二位置对应的时域资源上向第一终端设备发送第一信息。由于MBSFN子帧的位置包括第二位置，所以，第二网络设备是在MBSFN子帧上向第一终端设备发送的第一信息。而MBSFN子帧中CRS仅位于PDCCH对应的时频资源上，在PDSCH对应的时频资源上没有CRS，所以，在MBSFN子帧上发送第一信息可以避免第一信息与CRS之间时频资源冲突，实现LTE与NR的频谱共享。
在一种可能的设计中，第二位置对应的一个或多个子帧中包括第一子帧，第一子帧位于第二范围之外，所述第二范围为所述第一范围偏移所述第一偏移量后的范围，该方法还可以包括：向第一终端设备发送第一指示信息，第一指示信息用于指示在第一子帧对应的时域资源上进行速率匹配。
通过该设计，第二范围为第一范围偏移第一偏移量后的范围，也即是，第二范围为第二网络设备侧支持可配置为MBSFN子帧的位置。尽管，第一信息占用的一个或多个子帧偏移第一偏移量后落入MBSFN子帧的位置范围内，第二网络设备在MBSFN子帧上发送第一信息，但是，对于第二网络设备侧而言，该第二位置对应的一个或多个子帧可能位于第二范围之外，如第一子帧，这就意味着，第二网络设备无法将第一子帧为MBSFN子帧的这一配置状态通知给第一终端设备。所以，第二网络设备可以向第一终端设备发送第一指示信息，以指示第一终端设备在第一子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或数据。
在一种可能的设计中，该方法还可以包括：向第一终端设备发送第二MBSFN配置信息，第二MBSFN配置信息用于确定MBSFN子帧在第二范围内的配置状态，所述第二范围为所述第一范围偏移所述第一偏移量后的范围。
通过该设计，第一网络设备可以将第二MBSFN配置信息发送给第一终端设备，这样，第一终端设备在MBSFN子帧对应的时域资源上无需进行速率匹配，即可获取下行数据。例如，第一MBSFN配置信息为子帧#1、#2以及#3，记为111 000，第一偏移量为1，第一范围为子帧#1、#2、#3、#6、#7以及#8，第二范围为子帧#2、#3、#4、#7、#8以及#9，显然，MBSFN子帧在第二范围中子帧#2以及#3有效，所以，第二MBSFN配置信息为子帧#2以及#3，记为110 000。
在一种可能的设计中，MBSFN子帧包括第二子帧，第二子帧偏移第一偏移量后、位于第一范围之外，第二MBSFN配置信息包括第二指示信息，第二指示信息用于指示在第二子帧对应的时域资源上进行速率匹配。
通过该设计，对于第二网络设备侧而言，第一网络设备配置的MBSFN子帧偏移第一偏移量后可能落入第一范围之外了，如第二子帧。在此情况下，尽管第二网络设备侧，第二子帧所在位置可以配置为MBSFN子帧，但是在第一网络设备侧，第二子帧所在位置不可配置为MBSFN子帧，所以，第二网络设备可以将第二子帧对应的MBSFN子帧的配置 状态置为0，以指示第一终端设备在第二子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，MBSFN子帧包括第二子帧，第二子帧偏移第一偏移量后、位于第一范围之外，该方法还可以包括：向第一终端设备发送第二指示信息，第二指示信息用于指示在第二子帧对应的时域资源上进行速率匹配。
通过该设计，第二网络设备可以通过MBSFN配置信息的方式指示第一终端设备在第二子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或下行数据，还可以向第一终端设备发送第一指示信息，该第一指示信息可用于指示第一终端设备在第二子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或数据。
在一种可能的设计中，第一偏移量为大于0且小于10的整数。通过该设计，一帧中包括10个子帧，该第一偏移量可以为大于0且小于10的整数。
在一种可能的设计中，第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。通过该设计，第一信息可以为在使用MBSFN子帧的情况下仍然可能与CRS存在时频资源冲突的NR信号，例如，SSB，系统信息块，其它系统信息或寻呼消息中的一项或多项。
第三方面，本申请实施例提供一种通信装置，该通信装置可以为第一网络设备，或者为第一网络设备的部件(如处理器、芯片或芯片系统等)。该通信装置可以包括用于执行上述第一方面各个步骤的单元。例如，该通信装置可以包括通信单元和处理单元。
其中，通信单元可以用于接收来自第二网络设备的第一位置，第一位置是第一信息占用的一个或多个子帧的位置。
处理单元可以用于确定第一偏移量，第一偏移量用于确定第二位置，第二位置是第一位置偏移第一偏移量后的位置，且第二位置位于第一范围内，第一范围为支持配置多播/组播单频网络MBSFN子帧的位置；以及，配置MBSFN子帧，MBSFN子帧的位置包括第二位置。
该通信单元还可以用于向第二网络设备发送第一偏移量和第一MBSFN配置信息，第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态。
在一种可能的设计中，处理单元可以用于：根据第一位置和第一偏移量，配置MBSFN子帧。
在一种可能的设计中，处理单元，可以用于：根据第一位置和第一范围，确定第一偏移量。
在一种可能的设计中，第一偏移量为大于0且小于10的整数。
在一种可能的设计中，第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
第四方面，本申请实施例提供一种通信装置，该通信装置可以为第二网络设备，或者为第二网络设备的部件(如处理器、芯片或芯片系统等)。该通信装置可以包括用于执行上述第二方面各个步骤的单元。例如，该通信装置可以包括通信单元。
通信单元可以用于向第一网络设备发送第一位置，第一位置是第一信息占用的一个或多个子帧的位置；接收来自第一网络设备的第一偏移量和第一多播/组播单频网络MBSFN配置信息，其中，第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态，第一范围为支持配置MBSFN子帧的位置；以及，用于在第二位置对应的时域资源上，向第一终端设备发送第一信息，其中，第二位置是第一位置偏移第一偏移量后的位置，MBSFN 子帧的位置包括第二位置。
在一种可能的设计中，第二位置对应的一个或多个子帧中包括第一子帧，第一子帧位于第二范围之外，所述第二范围为所述第一范围偏移所述第一偏移量后的范围，通信单元，进一步用于：向第一终端设备发送第一指示信息，第一指示信息用于指示在第一子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，通信单元，进一步用于：向第一终端设备发送第二MBSFN配置信息，第二MBSFN配置信息用于确定MBSFN子帧在第二范围内的配置状态，所述第二范围为所述第一范围偏移所述第一偏移量后的范围。
在一种可能的设计中，MBSFN子帧包括第二子帧，第二子帧偏移第一偏移量后、位于第一范围之外，第二MBSFN配置信息包括第二指示信息，第二指示信息用于指示在第二子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，MBSFN子帧包括第二子帧，第二子帧偏移第一偏移量后、位于第一范围之外，通信单元，进一步用于：向第一终端设备发送第二指示信息，第二指示信息用于指示在第二子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，第一偏移量为大于0且小于10的整数。
在一种可能的设计中，第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
第五方面，本申请实施例提供一种通信装置，该通信装置包括处理器，用于实现上述第一方面中第一网络设备所执行的方法。该通信装置还可以包括存储器，用于存储程序指令和数据。该存储器与该处理器耦合，该处理器可以调用并执行该存储器中存储的程序指令，用于实现上述第一方面中第一网络设备所执行的任意一种方法。
可选的，该通信装置还可以包括收发器，该收发器用于该通信装置与其它设备进行通信。示例性地，该其它设备为第二网络设备。
第六方面，本申请实施例提供一种通信装置，该通信装置包括处理器，用于实现上述第二方面中第二网络设备所执行的方法。该通信装置还可以包括存储器，用于存储程序指令和数据。该存储器与该处理器耦合，该处理器可以调用并执行该存储器中存储的程序指令，用于实现上述第二方面中第二网络设备所执行的任意一种方法。
可选的，该通信装置还可以包括收发器，该收发器用于该通信装置与其它设备进行通信。示例性地，该其它设备为第一网络设备或第二终端设备。
第七方面，本申请实施例提供一种通信系统，包括能够实现第一方面提供的方法的第一网络设备，以及能够实现第二方面提供的方法的第二网络设备。
第八方面，本申请实施例还提供了一种计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行上述任一方面提供的方法。
第九方面，本申请实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，当所述计算机程序被计算机执行时，使得所述计算机执行上述任一方面提供的方法。
第十方面，本申请实施例还提供了一种芯片，所述芯片用于读取存储器中存储的计算机程序，执行上述任一方面提供的方法。
第十一方面，本申请实施例还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上述任一方面提供的方法。
在一种可能的设计中，所述芯片系统还包括存储器，所述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。
需要说明的是，上述第三方面至第十一方面的技术效果可参考第一方面以及第二方面的技术效果。
附图说明
图1为本申请实施例适用的一种通信系统的结构示意图；
图2为本申请实施例中小区带宽的一种示意图；
图3为本申请实施例中CRS图样的一种示意图；
图4为本申请实施例中NR信号避让CRS的一种示意图；
图5为本申请实施例中SSB与CRS存在时频资源冲突的一种示意图；
图6为本申请实施例中SSB与CRS存在时频资源冲突的另一种示意图；
图7为本申请实施例中MBSFN子帧的一种示意图；
图8为本申请实施例提供的一种通信方法的流程示意图；
图9为本申请实施例提供的第一范围的一种示意图；
图10为本申请实施例提供的LTE子帧与NR子帧的一种示意图；
图11为本申请实施例提供的MBSFN子帧与SSB占用的子帧的一种示意图；
图12为本申请实施例提供的第一MBSFN配置信息与第二MBSFN配置信息的一种示意图；
图13为本申请实施例提供的通信装置的一种结构示意图；
图14为本申请实施例提供的通信装置的一种结构示意图；
图15为本申请实施例提供的通信装置的另一种结构示意图；
图16为本申请实施例提供的通信装置的另一种结构示意图。
具体实施方式
本申请提供一种通信方法及装置，用于避免频谱共享中NR SSB与LTE CRS之间的时频资源冲突。其中，方法和设备是基于同一技术构思的，由于方法及装置解决问题的原理相似，因此设备与方法的实施可以相互参见，重复之处不再赘述。
为便于理解本申请实施例，下面介绍本申请实施例适用的通信系统。
图1示出了一种适用于本申请实施例的通信系统的示意图。如图1所示，该通信系统100可以包括网络设备200和终端设备。网络设备200可以包括多个通信模块，图1以通信模块1和通信模块2为例。通信系统100可以包括一个或多个终端设备，图1以终端设备1和终端设备2为例。其中，网络设备200可以分别与终端设备1、终端设备2建立RRC连接，为终端设备1、终端设备2提供网络服务。例如，网络设备200中的通信模块1可以与终端设备1进行通信，网络设备200中通信模块2可以与终端设备2进行通信。
示例性的，网络设备200可以为终端设备1、终端设备2提供不同制式的网络服务。例如，通信模块1可以为终端设备1提供LTE网络服务，两者可通过Uu接口进行通信。例如，通信模块2可以为终端设备2提供NR网络服务，两者可通过Uu接口进行通信。 进一步，通信模块1与通信模块2之间也可以进行通信。
其中，网络设备可以是接入网设备，例如无线接入网(radio access network，RAN)设备，是一种为终端设备提供无线通信功能的设备。接入网设备例如包括但不限于：第五代(5 th generation，5G)中的下一代基站(generation nodeB，gNB)、演进型节点B(evolved node B，eNB)、远端射频单元(remote radio unit，RRU)、基带单元(baseband unit，BBU)、收发点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、未来移动通信系统中的基站或WiFi系统中的接入点等。接入网设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(central unit，CU)，和/或分布单元(distributed unit,DU)，或者网络设备可以为中继站、车载设备以及未来演进的网络中的网络设备等。
终端设备可以简称为终端，例如用户设备(user equipment，UE)，是一种具有无线收发功能的设备。终端设备可以部署在陆地上(如车载、车辆、高铁或动车等)；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、无人机、气球和卫星上等)。所述终端设备可以是手机、平板电脑、带无线收发功能的电脑、虚拟现实终端设备、增强现实终端设备、工业控制中的无线终端设备、无人驾驶中的无线终端设备、远程医疗中的无线终端设备、智能电网中的无线终端设备、运输安全中的无线终端设备、智慧城市中的无线终端设备、智慧家庭中的无线终端设备。所述终端设备还可以是中继终端设备，例如手机、路由器，或运营商部署类似于路由器的接入设备等。本申请实施例对此并不限定。
需要说明的是，本申请实施例提供的通信方法可用于LTE与NR的频谱共享的场景，当然，也可以应用于其他场景，本申请实施例对此不作限定。例如，NR小区带宽可以与LTE小区带宽相同，如图2所示。例如，NR小区带宽可以小于或等于20M。
需要说明的是，图1所示的通信系统作为一个示例，并不对本申请实施例提供的方法适用的通信系统构成限定。例如，用于实现LTE网络功能的通信模块1与用于实现NR网络功能的通信模块2可以为网络设备200的部件(如处理器、芯片或芯片系统等)，即网络设备200即可以实现LTE网络功能也可以实现NR网络功能。再例如，用于实现LTE网络功能的通信模块1与用于实现NR网络功能的通信模块2可以为独立的两个网络设备，该两个网络设备可以为共址关系。在此情况下，图1中的粗线可以去掉。例如，通信模块1为LTE基站，通信模块2为NR基站。
为了便于表述，在下文中以通信模块1为实现LTE网络服务的通信模块(或网络设备)，通信模块2为实现NR网络服务的通信模块(或网络设备)为例进行描述。相应地，终端设备1可以为LTE UE，终端设备2可以为NR UE。
下面对本申请实施例涉及的一些技术特征进行介绍。
频谱共享是一种能够有效提升频谱利用率的技术，例如，将LTE的现有频谱共享给NR信号，或者将NR的新频谱共享给LTE信号。在LTE的现有频谱中，LTE CRS是全带宽发送的，若直接将LTE的频谱共享给NR信号，会导致LTE CRS与NR信号之间存在时频资源冲突。
目前，NR UE接入网络之后，LTE基站可以向NR基站发送LTE CRS图样。以2CRS为例，LTE基站在一个子帧中的符号0、符号4、符号7以及符号11对应的时频资源上发送CRS，如图3所示。NR基站接收到LTE CRS图样之后，可以根据该LTE CRS图样，避开LTE CRS的时频位置向NR UE发送数据以及LTE CRS图样，即NR基站使用除了 CRS占用的时频资源之外的时频资源向NR UE发送数据，如图4所示。这样，NR UE可以按照LTE CRS图样，不解析LTE CRS所在时频位置的数据，而解析除了LTE CRS的时频位置之外的时频位置的数据，从而实现LTE与NR的频谱共享。
若处于空闲(idle)态的NR UE想要接入网络，进入连接(connected)态，则NR UE可以搜索NR基站广播的SSB，根据SSB与NR基站取得同步，以及与NR基站完成RRC连接，从而NR UE接入网络。引入频谱共享概念后，NR基站可以使用LTE的频谱资源发送SSB，以提高频谱资源利用率。
一个SSB对应一个波束方向，NR基站可部署单波束、双波束或四波束等。相应的，SSB的数量可分别为1个、2个或4个等。SSB的发送周期可以为5ms、10ms或20ms等，在NR未接入网络之前，SSB的发送周期通常为20ms。协议定义子帧#0、#1、#5或#6可配置给SSB，以及一个SSB占用4个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号(可简称为符号)。例如，在SSB的数量为4，且SSB的发送周期为20ms的情况下，可将子帧#0、#1配置给SSB，每个子帧中发送2个SSB。再例如，在SSB的数量为4，且SSB的发送周期为5ms的情况下，可将子帧#0、#1、#5和#6配置给SSB。
以时分双工(time division dual，TDD)下的2端口(即2CRS)为例，在子帧#0中，CRS占用符号0、4、7以及11对应的时频资源；在子帧#1中，CRS占用符号0、4以及7对应的时频资源；另外，符号10～13对应的时频资源用于上下行的时隙转换，如图5所示。
在案例(case)A中，子载波间隔(subcarrier spacing，CSC)为15kHz，SSB的数量为4，即L＝4。第一、二个SSB分别占用子帧#0的符号2～5、符号8～11，第三、四个SSB分别占用子帧#1的符号2～5、符号8～11。其中，第一个SSB与子帧#0的符号4上的CRS冲突，第二个SSB与子帧#0的符号11上的CRS冲突，第三个SSB与子帧#1的符号4上的CRS冲突，第四个SSB与上下行的时隙转换冲突。
在case B中，CSC为30kHz，SSB的数量为8，即L＝8。第一、二个SSB占用前半个子帧#0的符号4～7、符号8～11，第三、四个SSB分别占用后半个子帧#0的符号2～5、符号6～9，第五、六个SSB分别占用前半个子帧#1的符号4～7、符号8～11，以及，第七、八个SSB分别占用后半个子帧#1的符号2～5、符号6～9。其中，第二个SSB与子帧#0的符号4上的CRS冲突，第四个SSB与子帧#0的符号4上的CRS冲突，第六个SSB与子帧#1的符号4上的CRS冲突，第八个SSB与上下行的时隙转换冲突。
在case C中，CSC为30kHz，SSB的数量为8，即L＝8。第一、二个SSB占用前半个子帧#0的符号2～5、符号8～11，第三、四个SSB分别占用后半个子帧#0的符号2～5、符号8～11，第五、六个SSB分别占用前半个子帧#1的符号2～5、符号8～11，以及，第七、八个SSB分别占用后半个子帧#1的符号2～5、符号8～11。其中，第二个SSB与子帧#0的符号4上的CRS冲突，第四个SSB与子帧#0的符号4上的CRS冲突，第六个SSB与子帧#1的符号4上的CRS冲突，第八个SSB与上下行的时隙转换冲突。
在TDD的2端口下，无论是4波束(4个SSB)还是8波束(SSB)，LTE CRS与SSB存在时频资源的冲突，所以，NR基站无法部署4波束和8波束。
以TDD下的4端口(即4CRS)为例，在子帧#5中，CRS占用符号0、1、4、7、8以及11对应的时频资源；在子帧#6中，CRS占用符号0、1、4、7以及8对应的时频资源；另外，符号10～13对应的时频资源用于上下行的时隙转换，如图6所示。
在case A中，CSC为15kHz，SSB的数量为4，即L＝4。第一、二个SSB分别占用子帧#5的符号2～5、符号8～11，第三、四个SSB分别占用子帧#6的符号2～5、符号8～11。其中，第一个SSB与子帧#5的符号4上的CRS冲突，第二个SSB与子帧#5的符号8、11上的CRS冲突，第三个SSB与子帧#6的符号4上的CRS冲突，第四个SSB与子帧#6的符号8上的CRS以及上下行的时隙转换冲突。
在case B中，CSC为30kHz，SSB的数量为8，即L＝8。第一、二个SSB占用前半个子帧#5的符号4～7、符号8～11，第三、四个SSB分别占用后半个子帧#5的符号2～5、符号6～9，第五、六个SSB分别占用前半个子帧#6的符号4～7、符号8～11，以及，第七、八个SSB分别占用后半个子帧#6的符号2～5、符号6～9。其中，第二个SSB与子帧#5的符号4上的CRS冲突，第三个SSB与子帧#5的符号8上的CRS冲突，第四个SSB与子帧#5的符号4上的CRS冲突11上的CRS冲突，第六个SSB与子帧#6的符号4上的CRS冲突，第七个SSB与子帧#6的符号8上的CRS、以及上下行的时隙转换冲突。
在case C中，CSC为30kHz，L为8。第一、二个SSB占用前半个子帧#5的符号2～5、符号8～11，第三、四个SSB分别占用后半个子帧#5的符号2～5、符号8～11，第五、六个SSB分别占用前半个子帧#6的符号2～5、符号8～11，以及，第七、八个SSB分别占用后半个子帧#6的符号2～5、符号8～11。其中，第一个SSB与子帧#5的符号1上的CRS冲突，第二个SSB与子帧#5的符号4上的CRS冲突，第三个SSB与子帧#5的符号8上的CRS冲突第四个SSB与子帧#5的符号11上的CRS冲突，第五个SSB与子帧#6的符号1上的CRS冲突，第六个SSB与子帧#6的符号4上的CRS冲突，第七个SSB与子帧#6的符号8上的CRS冲突第四个SSB与子帧#5的符号11上的CRS冲突，第八个SSB与上下行的时隙转换冲突。
在TDD的4端口下，无论是4波束(4个SSB)还是8波束(SSB)，LTE CRS与SSB也存在时频资源的冲突，所以，NR基站无法部署4波束和8波束。
考虑到MBSFN子帧中LTE CRS存在于物理下行控制信道(physical downlink control channel，PDCCH)对应的符号中，在物理下行共享信道(physical downlink share channel，PDSCH)对应的时频资源中没有LTE CRS，可以将SSB占用的子帧配置为MBSFN子帧，以避开CRS。例如，LTE CRS仅占用符号1，如图7所示。
协议定义LTE可配置为MBSFN的子帧编号为#1、#2、#3、#6、#7以及#8，以及，SSB所占用的子帧为#0以及#1(或者#0、#1、#5以及#6)。LTE基站可以将MBSFN子帧的位置告知给NR基站，以使NR基站在MBSFN子帧上发送SSB，这就意味着，LTE基站侧的子帧编号与NR基站侧的子帧编号是对齐的，这样，SSB占用的一个或多个子帧不能全部都是MBSFN子帧(如子帧#0)，导致NR SSB与LTE CRS之间存在时频资源冲突。
鉴于此，本申请实施例提供一种通信方法、装置以及系统，用以避免频谱共享中NR SSB与LTE CRS之间的时频资源冲突。可以理解的是，NR SSB可简称为SSB，LTE CRS可简称为CRS。
需要说明的是，本申请下述实施例中“多个”是指两个或两个以上，鉴于此，本申请实施例中也可以将“多个”理解为“至少两个”。“至少一个”，可理解为一个或多个，例如理解为一个、两个或更多个。例如，包括至少一个，是指包括一个、两个或更多个，而且不限制包括的是哪几个，例如，包括A、B和C中的至少一个，那么包括的可以是A、B、C、A和B、A和C、B和C、或A和B和C。“和/或”，描述关联对象的关联关系， 表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。
除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
图8示出了本申请实施例提供的一种通信方法的流程示意图，该方法可以应用于图1所述的通信系统100中。例如，第一网络设备可以为图1所示的通信模块1，第二网络设备可以为图1所示的通信模块2，第二终端设备可以为图1所示的终端设备1，第一终端设备可以为图1所示的终端设备2，即第一网络设备可以为第二终端设备提供LTE网络服务，第二网络设备可以为第一终端设备提供NR网络服务。如图8所示，该方法的流程示意图可以如下所示。
S801：第二网络设备向第一网络设备发送第一位置。相应地，第一网络设备接收第一位置。
示例性的，第二网络设备可以向第一网络设备发送第一位置，该第一位置可用于配置MBSFN子帧。其中，第一位置可以为第一信息占用的一个或多个子帧的位置。例如，该第一位置可以为子帧编号。
示例性的，第一信息可以指与LTE CRS存在时频资源冲突的NR信号。在本申请实施例中，该第一信息可以指在使用MBSFN子帧的情况下可能与LTE CRS仍然存在时频资源冲突的NR信号。例如，该第一信息可以为以下信息中的一项或多项。
(1)SSB，可以用于NR UE与NR基站取得同步。例如，该SSB可占用子帧#0、#1、#5或#6中的至少一个。例如，在SSB占用子帧#0的情况下，SSB与CRS存在时频资源冲突。例如，在SSB占用子帧5的情况下，SSB与CRS存在时频资源冲突。再例如，在SSB占用子帧#0和子帧5的情况下，SSB与CRS存在时频资源冲突。
(2)系统信息块(system information block，SIB)，可以为NR UE提供小区驻留、重传或链路建立等过程所需的若干参数。例如，该SIB可占用子帧#2、#3、#4或#5等中的至少一个。例如，在SIB占用子帧5的情况下，SSB与CRS存在时频资源冲突。
(3)其他系统信息(other system information，OSI)，可以用于其它小区信息的广播。例如，该OSI可占用子帧#5和/或子帧#7等。例如，在该OSI占用子帧5的情况下，该OSI与CRS存在时频子帧冲突。
(4)寻呼消息(paging)，可以用于向处于空闲态的NR UE发送呼叫请求。例如，该寻呼消息可占用子帧#2、#3、或#5等中的至少一个。例如，在寻呼消息占用子帧#5的情况下，该寻呼消息与CRS存在时频资源冲。
可以理解的是，上述第一信息占用的子帧的位置仅为一种示例，本申请实施例对此并不限定。
为了便于理解本申请的技术方案，在下文中以第一信息为SSB为例进行介绍。可以理解的是，适应于SSB的技术方案可同样适应于其他与CRS存在时频资源冲突的NR信号(如SIB、OSI或寻呼消息等)。
示例性的，第二网络设备可以为SSB配置子帧，以及通过RRC信令将第一位置发送给第一网络设备。例如，第二网络设备可以根据部署的波束的数量确定SSB的数量，再基于SSB的数量以及SSB的发送周期为SSB配置子帧。例如，SSB的数量为1，SSB的发 送周期为20ms，第二网络设备可以将子帧#1配置给SSB，该第一位置为子帧#1。例如，SSB的数量为4，SSB的发送周期为20ms，第二网络设备可以将子帧#0和子帧#1配置给SSB，该第一位置为子帧#0和子帧#1。再例如，SSB的数量为4，SSB的发送周期为5ms，第二网络设备可以将子帧#0、#1、#5以及#6配置给SSB，该第一位置为子帧#0、#1、#5以及#6。
可选的，第二网络设备可以向第一网络设备发送SSB的数量。相应地，第一网络设备接收SSB的数量。例如，第二网络设备可以通过RRC信令将SSB的数量发送给第一网络设备。
S802：第一网络设备确定第一偏移量。
示例性，第一网络设备可以确定第一偏移量，该第一偏移量可用于使得SSB占用的一个或多个子帧偏移第一偏移量后落入MBSFN子帧的位置范围内。可选的，该第一偏移量可以为大于或等于1、且小于或等于9的整数。
作为一个示例，第一网络设备可以根据第一位置和第一范围，确定第一偏移量。其中，第一范围可以为支持配置MBSFN子帧的位置，即协议定义的可配置为MBSFN的子帧编号。例如，第一范围可以为子帧#1、#2、#3、#6、#7以及#8，如图9所示。例如，SSB占用的子帧为子帧#0和#1，第一网络设备可以确定第一偏移量为1、2、6或7中的任一个。再例如，SSB占用的子帧为子帧#0、#1、#5以及#6，第一网络设备可以确定第一偏移量为2或3。通过该方法，由于一帧中并不是所有子帧皆可以配置为MBSFN子帧，所以，第一网络设备可以根据第一位置和第一范围来确定第一偏移量，该第一范围为支持配置MBSFN子帧的位置，这样，能够确保第一信息占用的一个或子帧在偏移第一偏移量后所在的位置，皆能够配置为MBSFN子帧。
作为另一个示例，第一偏移量可以是系统预定义的。例如，系统预定义第一偏移量为1。再例如，第一网络设备与第二网络设备也可以预先协议该第一偏移量为1或2。
S803：第一网络设备配置MBSFN子帧。
示例性的，第一网络设备可以配置一个或多个MBSFN子帧。例如，第一网络设备可以在第一范围内配置一个或多个MBSFN子帧，如将子帧#1和子帧#2配置为MBSFN子帧。例如，第一网络设备可以根据预定义在第一范围内配置一个或多个MBSFN子帧，如第一网络设备和第二网络设备预先约定配置MBSFN子帧的数量以及MBSFB子帧的位置。再例如，第一网络设备可以根据第一位置和第一偏移量配置一个或多个MBSFN子帧。
作为一个示例，第一网络设备可以根据第一位置和第一偏移量，在第一范围内配置一个或多个MBSFN子帧。例如，第一网络设备可以根据第一位置和第一偏移量，先确定第二位置，再根据第二位置配置一个或多个MBSFN子帧。其中，该第二位置可以为第一位置偏移第一偏移量后的位置，即SSB所在子帧编号偏移第一偏移量后的子帧编号。并且，该第二位置可以位于第一范围内，这样，MBSFN子帧的位置可以包括第二位置，从而确保SSB占用的一个或多个子帧的位置偏移第一偏移量后，能够落入配置好的MBSFN子帧的位置范围内，从而第二网络设备可以在MBSFN子帧上发送SSB，避免SSB与CRS之间时频资源冲突，实现LTE与NR的频谱共享。例如，第一网络设备可以先根据第一位置和第一偏移量，确定第一位置偏移第一偏移量后的位置，即第二位置，然后，基于该第二位置配置MBSFN子帧，以确保MBSFN子帧的位置包括该第二位置。
举例而言，第一偏移量为1，第一位置为子帧#0和子帧#1，第一位置偏移第一偏移量 后为子帧#1和子帧#2，即第二位置可以为子帧#1和子帧#2。在此情况下，第一网络设备可以根据第二位置配置子帧#1和子帧#2为MBSFN子帧；或者，可以配置子帧#1、#2以及#3为MBSFN子帧；或者，可以配置子帧#1、#2以及#6为MBSFN子帧；或者，可以配置子帧#1、#2以及#7为MBSFN子帧；或者，可以配置子帧#1、#2以及#8为MBSFN子帧；或者，可以配置子帧#1、#2、#3以及#6为MBSFN子帧；或者，可以配置子帧#1、#2、#3以及#7为MBSFN子帧；或者，可以配置子帧#1、#2、#3以及#8为MBSFN子帧；或者，可以配置为#1、#2、#6以及#7为MBSFN子帧；或者，可以配置为#1、#2、#6以及#8为MBSFN子帧；或者，可以配置为#1、#2、#7以及#8为MBSFN子帧；或者，可以配置子帧#1、#2、#3、#6、#7以及#8为MBSFN子帧。
举例而言，第一偏移量为2，第一位置为子帧#0、#1、#5和#6，第一位置偏移第一偏移量后为子帧#2、#3、#7以及#8，即第二位置可以为子帧#2、#3、#7以及#8。在此情况下，第一网络设备可以根据第二位置配置子帧#2、#3、#7以及#8为MBSFN子帧；或者，可以配置子帧#1、#2、#3、#7以及#8为MBSFN子帧；或者，可以配置子帧#2、#3、#6、#7以及#8为MBSFN子帧；或者，可以配置子帧#1、#2、#3、#6、#7以及#8为MBSFN子帧。
需要说明的是，上述步骤S802和步骤S803的执行顺序仅为一种示例，本申请实施例对此并不限定。例如，第一网络设备可以先配置MBSFN子帧，再确定第一偏移量。例如，第一网络设备可以根据预定义将一个或多个子帧配置为MBSFN，之后，再根据MBSFN子帧的位置以及第一位置，确定第一偏移量，即先执行步骤S803再执行步骤S802。
举例而言，第一网络设备可以根据预定义，将子帧#1、#2以及#3配置为MBSFN，第一位置为子帧#0和子帧#1。在此情况下，第一网络设备可以根据MBSFN子帧所在的位置以及第一位置确定第一偏移量为1或2，以确保第一位置偏移第一偏移量后能够落在MBSFN子帧所在的位置上。再例如，第一网络设备可以根据预先与第二网络设备的协商结果，将子帧#1、#2、#3、#6、#7以及#8配置为MBSFN，第一位置为子帧#0、#1、#5以及#6。在此情况下，第一网络设备可以根据MBSFN子帧所在的位置以及第一位置确定第一偏移量为1或2，以确保第一位置偏移第一偏移量后能够落在MBSFN子帧所在的位置上。
S804：第一网络设备向第二网络设备发送第一偏移量和第一MBSFN配置信息。相应地，第二网络设备接收第一偏移量和第一MBSFN配置信息。
示例性的，第一网络设备可以向第二网络设备发送第一偏移量和第一MBSFN配置信息。例如，第一网络设备可以通过RRC信令向第二网络设备发送第一偏移量和第一MBSFN配置信息。其中，第一MBSFN配置信息可以用于确定MBSFN子帧在第一范围内的配置状态，或者可以用于指示MBSFN子帧的位置。
示例性的，第一网络设备可以采用0/1的方式向第二网络设备发送第一MBSFN配置信息。其中，0可以表示子帧未配置MBSFN，1可以表示子帧配置为MBSFN。例如，第一网络设备将子帧#1和子帧#2配置为MBSFN，则第一MBSFN配置信息可以表示为110000。例如，第一网络设备将子帧#1、#2以及#8配置为MBSFN，则第一MBSFN配置信息可以表示为110 001。再例如，第一网络设备将子帧#1、#2、#3、#6、#7以及#8配置为MBSFN，则第一MBSFN配置信息可以表示为111 111。可以理解的是，第一网络设备还可以采用其它方式表示MBSFN子帧的位置，本申请实施例对此并不限定。
在一种可能的实施方式中，第一网络设备配置MBSFN子帧后，第一网络设备可以向第二终端设备发送第一MBSFN配置信息。
S805：第二网络设备在第二位置对应的时域资源上向第一终端设备发送第一信息。相应地，第一终端设备接收第一信息。
示例性的，第二网络设备可以在第二位置对应的时域资源上向第一终端设备发送第一信息。例如，第二网络设备可以根据第一偏移量和第一位置确定第二位置，再在第二位置对应的时域资源上向第一终端设备发送SSB。
可以理解的是，第二网络设备在第二位置对应的时域资源上向第一终端设备发送第一信息，可以理解为第二网络设备延后第一偏移量向第一终端设备发送第一信息，也就意味着，第一网络设备侧的子帧编号与第二网络设备侧的子帧编号不是对齐的。例如，以第一偏移量为1为例，同一时刻，第一网络设备侧的子帧#0对应第二网络设备侧的子帧#9；第一网络设备侧的子帧#1对应第二网络设备侧的子帧#0；第一网络设备侧的子帧#2对应第二网络设备侧的子帧#1；第一网络设备侧的子帧#3对应第二网络设备侧的子帧#2；第一网络设备侧的子帧#4对应第二网络设备侧的子帧#3；第一网络设备侧的子帧#5对应第二网络设备侧的子帧#4；第一网络设备侧的子帧#6对应第二网络设备侧的子帧#5；第一网络设备侧的子帧#7对应第二网络设备侧的子帧#6；第一网络设备侧的子帧#8对应第二网络设备侧的子帧#7；第一网络设备侧的子帧#9对应第二网络设备侧的子帧#8，如图10所示。
举例而言，MBFSN子帧为子帧#1和子帧#2，第一偏移量为1，第一位置为子帧#0和子帧#1。第一位置偏移第一偏移量后为子帧#1和子帧#2，也即是第二位置为子帧#1和子帧#2，即对应到第一网络设备侧的子帧编号为子帧#1和子帧#2。第二网络设备可以在NR的子帧#1和子帧#2上向第二终端设备发送SSB。由于第二网络设备按照第一偏移量进行子帧偏移后再发送SSB，相当于第二网络设备延迟第一偏移量发送SSB，如第一偏移量为1意味着延迟1ms，这样，NR子帧#0和子帧#1实际上可以对应到LTE的子帧1和子帧#2，而LTE的子帧1和子帧#2为MBSFN子帧，即SSB是在MBSFN子帧上进行发送的，从而可以避免SSB与CRS的时频资源冲突，如图11所示。
在一种可能的实施方式中，第二位置对应的一个或多个子帧中包括第一子帧，该第一子帧位于第二范围之外，第二范围为第一范围偏移第一偏移量后的范围。在此情况下，第二网络设备可以向第一终端设备发送第一指示信息。该第一指示信息可用于指示第二终端设备在第一子帧对应的时域资源上进行速率匹配。可选的，第一子帧可以为子帧#0，或者第一子帧可以为子帧#5，或第一子帧可以为子帧#0和子帧#5。
其中，第一范围可以理解为第一网络设备侧支持可配置MBSFN子帧的位置范围，第二范围可以理解为第二网络设备支持可配置的MBSFN子帧的位置范围偏移第一偏移量后、对应到第一网络设备侧的子帧范围。第二网络设备根据在第二位置对应的时域资源向第一终端设备发送第一信息，第二位置落入到MBSFN子帧的位置，但是，第一位置偏移后对应的一个或多个子帧可能位于第二范围之外了，如第一子帧，这就意味着，第二网络设备无法将第一子帧为MBSFN子帧的这一配置状态通知给第一终端设备。所以，第二网络设备可以向第一终端设备发送第一指示信息，以指示第一终端设备在第一子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或下行数据。
以图10为例，第一范围为子帧#1、#2、#3、#6、#7以及#8，MBSFN子帧为子帧#1、#2、#3。第二范围为第一范围偏移第一偏移量后的范围，即第二范围为子帧#2、#3、#4、 #7、#8以及#9，第一位置为子帧#0和子帧#1，则第二位置为子帧#1和子帧#2。对于第二网络设备而言，子帧#0对于到第一网络设备侧为子帧#1，即第一网络设备是在MBSFN子帧上发送SSB的，但是，对于第一网络设备而言，该子帧#0不在协议定义的可配置为MBSFN子帧的范围内，因为第一网络设备可以向第一终端设备通知子帧1、#2、#3、#6、#7以及#8上是否配置MBSFN，所以，第一网络设备无法将子帧#0为MBSFN子帧的这一配置状态通知给第一终端设备。在此情况下，第二网络设备可以向第一终端设备发送第一指示信息，以指示第一终端设备在第一子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或数据，从而实现NR与LTE的频谱共享。
在一种可能的实施方式中，第二网络设备可以向第一终端设备发送第二MBSFN配置信息。其中，该第二MBSFN配置信息可用于确定MBSFN子帧在第二范围内的配置状态，或者可以用于指示MBSFN子帧在第二范围内的有效MBSFN子帧。通过该设计，第一网络设备可以将第二MBSFN配置信息发送给第一终端设备，这样，第一终端设备在MBSFN子帧对应的时域资源上无需进行速率匹配，即可获取第一信息和/或下行数据。
以图10为例，第一范围为子帧#1、#2、#3、#6、#7以及#8，第二范围为子帧#2、#3、#4、#7、#8以及#9。MBSFN子帧为子帧#1、#2以及#3，对应的第一MBSFN配置信息可以为111 000。NR子帧偏移第一偏移量后，NR子帧中的子帧#0、#1以及#2对于LTE中的MBSFN子帧。但是，对于NR基站而言，可配置为MBSFN的子帧仍然为#1、#2、#3、#6、#7以及#8，即NR子帧#1对应LTE子帧#2，NR子帧#2对应LTE子帧#3，NR子帧#3对应LTE子帧#4，而LTE子帧#4不支持配置MBSFN子帧，所以，NR基站可将NR子帧#3置0，即第二MBSFN配置信息为110 000，如图12所示。
作为一个示例，该第二MBSFN配置信息可以包括第二指示信息，该第二指示信息可以用于指示第二终端设备在第二子帧对应的时域资源上进行速率匹配。其中，第二子帧可以为MBSFN子帧，且第二子帧偏移第一偏移量后、位于第一范围之外。对于第二网络设备侧而言，第一网络设备配置的MBSFN子帧偏移第一偏移量后可能落入第一范围之外了，如第二子帧。在此情况下，尽管第二网络设备侧，第二子帧所在位置可以配置为MBSFN子帧，即第二网络设备可以通知第二子帧是否配置MBSFN子帧。但是，在第一网络设备侧，第二子帧所在位置不可配置为MBSFN子帧，所以，第二网络设备可以将第二子帧对应的MBSFN子帧的配置状态置为0，以指示第一终端设备在第二子帧对应的时域资源上进行速率匹配。以图12为例，该第二子帧可以为NR子帧中的子帧#3以及子帧#8。
在另一种可能的实施方式中，第二网络设备可以向第一终端设备发送第二指示信息。例如，第二网络设备可以通过RRC信令向第一终端设备发送该第二指示信息。该第二指示信息可以用于指示第一终端设备在第二子帧对应的时域资源上进行速率匹配。其中，第二子帧可以为MBSFN子帧，且第二子帧偏移第一偏移量后、位于第一范围之外。通过该设计，第二网络设备可以通过MBSFN配置信息的方式指示第一终端设备在第二子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或下行数据，还可以向第一终端设备发送第二指示信息，该第二指示信息可用于指示第一终端设备在第二子帧对应的时域资源上进行速率匹配，以成功获取第一信息和/或数据。
在本申请的上述实施例中，第一网络设备可以根据第一信息占用的一个或多个子帧的位置，确定第一偏移量和配置MBSFN子帧。该第一偏移量可用于确定第二位置，该第二位置为该一个或多个子帧偏移第一偏移量后的位置，且该第二位置位于支持配置MBSFN 子帧的位置之内，也即是配置的MBSFN子帧的位置包括第二位置。意味着，第一信息占用的一个或多个子帧的位置在偏移第一偏移量之后，可以落入MBSFN子帧的位置之内，也就是说，第二网络设备可以根据第一偏移量在MBSFN子帧上发送第一信息。由于MBSFN子帧中CRS仅位于PDCCH对应的时频资源上，在PDSCH对应的时频资源上没有CRS，所以，在MBSFN子帧上发送第一信息可以避免第一信息与CRS之间时频资源冲突，实现LTE与NR的频谱共享。
上述本申请提供的实施例中，分别从第一网络设备、第二网络设备以及两者之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，第一网络设备、第二网络设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
图13示出了一种通信装置1300的结构示意图。其中，通信装置1300可以是上述图8所示的实施例中的第一网络设备，能够实现本申请实施例提供的方法中第一网络设备的功能；通信装置1300也可以是能够支持第一网络设备实现本申请实施例提供的方法中第一网络设备的功能的装置。通信装置1300可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置1300可以由芯片系统实现。本申请实施例中，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。
通信装置1300可以包括处理单元1301和通信单元1302。
其中，通信单元1302可以用于接收来自第二网络设备的第一位置，第一位置是第一信息占用的一个或多个子帧的位置。
处理单元1301可以用于确定第一偏移量，第一偏移量用于确定第二位置，第二位置是第一位置偏移第一偏移量后的位置，且第二位置位于第一范围内，第一范围为支持配置多播/组播单频网络MBSFN子帧的位置；以及，配置MBSFN子帧，MBSFN子帧的位置包括第二位置。
该通信单元1302还可以用于向第二网络设备发送第一偏移量和第一MBSFN配置信息，第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态。
在一种可能的设计中，处理单元1301可以用于：根据第一位置和第一偏移量，配置MBSFN子帧。
在一种可能的设计中，处理单元1301，可以用于：根据第一位置和第一范围，确定第一偏移量。
在一种可能的设计中，第一偏移量为大于0且小于10的整数。
在一种可能的设计中，第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
通信单元1302用于通信装置1300和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
本申请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模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
图14示出了一种通信装置1400的结构示意图。其中，通信装置1400可以上述图8所示的实施例中的第二网络设备，能够实现本申请实施例提供的方法中第二网络设备的功能；通信装置1400也可以是能够支持第二网络设备实现本申请实施例提供的方法中第二网络设备的功能的装置。通信装置1400可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置1400可以由芯片系统实现。本申请实施例中，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。
通信装置1400可以包括处理单元1401和通信单元1402。
其中，通信单元1402可以用于向第一网络设备发送第一位置，第一位置是第一信息占用的一个或多个子帧的位置；接收来自第一网络设备的第一偏移量和第一多播/组播单频网络MBSFN配置信息，其中，第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态，第一范围为支持配置MBSFN子帧的位置；以及，用于在第二位置对应的时域资源上，向第一终端设备发送第一信息，其中，第二位置是第一位置偏移第一偏移量后的位置，MBSFN子帧的位置包括第二位置。
在一种可能的设计中，第二位置对应的一个或多个子帧中包括第一子帧，第一子帧位于第二范围之外，所述第二范围为所述第一范围偏移所述第一偏移量后的范围，通信单元1402，进一步用于：向第一终端设备发送第一指示信息，第一指示信息用于指示在第一子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，通信单元1402，进一步用于：向第一终端设备发送第二MBSFN配置信息，第二MBSFN配置信息用于确定MBSFN子帧在第二范围内的配置状态，所述第二范围为所述第一范围偏移所述第一偏移量后的范围。
在一种可能的设计中，MBSFN子帧包括第二子帧，第二子帧偏移第一偏移量后、位于第一范围之外，第二MBSFN配置信息包括第二指示信息，第二指示信息用于指示在第二子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，MBSFN子帧包括第二子帧，第二子帧偏移第一偏移量后、位于第一范围之外，通信单元1402，进一步用于：向第一终端设备发送第二指示信息，第二指示信息用于指示在第二子帧对应的时域资源上进行速率匹配。
在一种可能的设计中，第一偏移量为大于0且小于10的整数。
在一种可能的设计中，第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
通信单元1402用于通信单元1400和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
本申请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模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
如图15所示为本申请实施例提供的通信装置1500，其中，通信装置1500可以是图8所示的实施例中的第一网络设备，能够实现本申请实施例提供的方法中第一网络设备的功能；通信装置1500也可以是能够支持第一网络设备实现本申请实施例提供的方法中第一网络设备的功能的装置。其中，该通信装置1500可以为芯片系统。本申请实施例中，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。
在硬件实现上，上述通信单元1302可以为收发器，收发器集成在通信装置1500中构成通信接口1510。
通信装置1500包括至少一个处理器1520，用于实现或用于支持通信装置1500实现本申请实施例提供的方法中第一网络设备的功能。示例性地，处理器1520可以根据确定第一偏移量，以及配置MBSFN子帧，具体参见方法示例中的详细描述，此处不做赘述。
通信装置1500还可以包括至少一个存储器1530，用于存储程序指令和/或数据。存储器1530和处理器1520耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器1520可能和存储器1530协同操作。处理器1520可能执行存储器1530中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置1500还可以包括通信接口1510，用于通过传输介质和其它设备进行通信，从而用于通信装置1500中的装置可以和其它设备进行通信。示例性地，该其它设备可以是第二网络设备或第二终端设备。处理器1520可以利用通信接口1510收发数据。通信接口1510具体可以是收发器。
本申请实施例中不限定上述通信接口1510、处理器1520以及存储器1530之间的具体连接介质。本申请实施例在图15中以存储器1530、处理器1520以及通信接口1510之间通过总线1540连接，总线在图15中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图15中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器1520可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器1530可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是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，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
如图16所示为本申请实施例提供的通信装置1600，其中，通信装置1600可以是图8所示的实施例中的第二网络设备，能够实现本申请实施例提供的方法中第二网络设备的功能；通信装置1600也可以是能够支持第二网络设备实现本申请实施例提供的方法中第二网络设备的功能的装置。其中，该通信装置1600可以为芯片系统。本申请实施例中，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。
在硬件实现上，上述通信单元1402可以为收发器，收发器集成在通信装置1600中构成通信接口1610。
通信装置1600包括至少一个处理器1620，用于实现或用于支持通信装置1600实现本申请实施例提供的方法中第二网络设备的功能。示例性地，处理器1620可以根据第一偏移量确定第二位置，具体参见方法示例中的详细描述，此处不做赘述。
通信装置1600还可以包括至少一个存储器1630，用于存储程序指令和/或数据。存储器1630和处理器1620耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器1620可能和存储器1630协同操作。处理器1620可能执行存储器1630中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置1600还可以包括通信接口1610，用于通过传输介质和其它设备进行通信，从而用于装置1600中的装置可以和其它设备进行通信。示例性地，该其它设备可以是第一网络设备或第一终端设备。处理器1620可以利用通信接口1610收发数据。通信接口1610具体可以是收发器。
本申请实施例中不限定上述通信接口1610、处理器1620以及存储器1630之间的具体连接介质。本申请实施例在图16中以存储器1630、处理器1620以及通信接口1610之间通过总线1640连接，总线在图16中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图16中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器1620可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器1630可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是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，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
本申请实施例中还提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行前述实施例中第一网络设备执行的方法。
本申请实施例中还提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行前述实施例中第二网络设备执行的方法。
本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行前述实施例中第一网络设备执行的方法。
本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行前述实施例中第二网络设备执行的方法。
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，还可以包括存储器，用于实现前述方法中第一网络设备的功能。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。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现前述方法中第二网络设备的功能。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。
本申请实施例提供了一种通信系统，所述通信系统包括前述第一网络设备和第二网络设备。
本申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，简称DSL)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，简称DVD))、或者半导体介质(例如，SSD)等。
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 (30)

  1. 一种通信方法，应用于第一网络设备中，其特征在于，包括：
    接收来自第二网络设备的第一位置，所述第一位置是第一信息占用的一个或多个子帧的位置；
    确定第一偏移量，所述第一偏移量用于确定第二位置，所述第二位置是所述第一位置偏移所述第一偏移量后的位置，且所述第二位置位于第一范围内，所述第一范围为支持配置多播/组播单频网络MBSFN子帧的位置；
    配置所述MBSFN子帧，所述MBSFN子帧的位置包括所述第二位置；
    向所述第二网络设备发送所述第一偏移量和所述第一MBSFN配置信息，所述第一MBSFN配置信息用于确定所述MBSFN子帧在所述第一范围内的配置状态。
  2. 根据权利要求1所述的方法，其特征在于，配置所述MBSFN子帧，包括：
    根据所述第一位置和所述第一偏移量，配置所述MBSFN子帧。
  3. 根据权利要求1或2所述的方法，其特征在于，确定所述第一偏移量，包括：
    根据所述第一位置和所述第一范围，确定所述第一偏移量。
  4. 根据权利要求1～3中任一项所述的方法，其特征在于，所述第一偏移量为大于0且小于10的整数。
  5. 根据权利要求1～4中任一项所述的方法，其特征在于，所述第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
  6. 一种通信方法，应用于第二网络设备中，其特征在于，包括：
    向第一网络设备发送第一位置，所述第一位置是第一信息占用的一个或多个子帧的位置；
    接收来自所述第一网络设备的第一偏移量和第一多播/组播单频网络MBSFN配置信息，其中，所述第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态，所述第一范围为支持配置MBSFN子帧的位置；
    在第二位置对应的时域资源上，向第一终端设备发送所述第一信息，其中，所述第二位置是所述第一位置偏移所述第一偏移量后的位置，所述MBSFN子帧的位置包括所述第二位置。
  7. 根据权利要求6所述的方法，其特征在于，所述第二位置对应的一个或多个子帧中包括第一子帧，所述第一子帧位于第二范围之外，所述第二范围为所述第一范围偏移所述第一偏移量后的范围，所述方法还包括：
    向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示在所述第一子帧对应的时域资源上进行速率匹配。
  8. 根据权利要求6或7所述的方法，其特征在于，所述方法还包括：
    向所述第一终端设备发送第二MBSFN配置信息，所述第二MBSFN配置信息用于确定所述MBSFN子帧在第二范围内的配置状态，所述第二范围为所述第一范围偏移所述第一偏移量后的范围。
  9. 根据权利要求8所述的方法，其特征在于，
    所述MBSFN子帧包括第二子帧，所述第二子帧偏移所述第一偏移量后、位于所述第一范围之外，所述第二MBSFN配置信息包括第二指示信息，所述第二指示信息用于指示 在所述第二子帧对应的时域资源上进行速率匹配。
  10. 根据权利要求6～8中任一项所述的方法，其特征在于，所述MBSFN子帧包括第二子帧，所述第二子帧偏移所述第一偏移量后、位于所述第一范围之外，所述方法还包括：
    向所述第一终端设备发送第二指示信息，所述第二指示信息用于指示在所述第二子帧对应的时域资源上进行速率匹配。
  11. 根据权利要求6～10中任一项所述的方法，其特征在于，所述第一偏移量为大于0且小于10的整数。
  12. 根据权利要求6～11中任一项所述的方法，其特征在于，所述第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
  13. 一种通信装置，应用于第一网络设备中，其特征在于，包括：
    通信单元，用于接收来自第二网络设备的第一位置，所述第一位置是第一信息占用的一个或多个子帧的位置；
    处理单元，用于确定第一偏移量，所述第一偏移量用于确定第二位置，所述第二位置是所述第一位置偏移所述第一偏移量后的位置，且所述第二位置位于第一范围内，所述第一范围为支持配置多播/组播单频网络MBSFN子帧的位置；以及，配置所述MBSFN子帧，所述MBSFN子帧的位置包括所述第二位置；
    所述通信单元，还用于向所述第二网络设备发送所述第一偏移量和所述第一MBSFN配置信息，所述第一MBSFN配置信息用于确定所述MBSFN子帧在所述第一范围内的配置状态。
  14. 根据权利要求13所述的装置，其特征在于，所述处理单元，具体用于：
    根据所述第一位置和所述第一偏移量，配置所述MBSFN子帧。
  15. 根据权利要求13或14所述的装置，其特征在于，所述处理单元，具体用于：
    根据所述第一位置和所述第一范围，确定所述第一偏移量。
  16. 根据权利要求13～15中任一项所述的装置，其特征在于，所述第一偏移量为大于0且小于10的整数。
  17. 根据权利要求13～16中任一项所述的装置，其特征在于，所述第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
  18. 一种通信装置，应用于第二网络设备中，其特征在于，包括：
    通信单元，用于向第一网络设备发送第一位置，所述第一位置是第一信息占用的一个或多个子帧的位置；接收来自所述第一网络设备的第一偏移量和第一多播/组播单频网络MBSFN配置信息，其中，所述第一MBSFN配置信息用于确定MBSFN子帧在第一范围内的配置状态，所述第一范围为支持配置MBSFN子帧的位置；以及，在第二位置对应的时域资源上，向所述第一终端设备发送所述第一信息，其中，所述第二位置是所述第一位置偏移所述第一偏移量后的位置，所述MBSFN子帧的位置包括所述第二位置。
  19. 根据权利要求18所述的装置，其特征在于，所述第二位置对应的一个或多个子帧中包括第一子帧，所述第一子帧位于第二范围之外，所述第二范围为所述第一范围偏移所述第一偏移量后的范围，所述通信单元，进一步用于：
    向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示在所述第一子帧对应的时域资源上进行速率匹配。
  20. 根据权利要求18或19所述的装置，其特征在于，所述通信单元，进一步用于：
    向所述第一终端设备发送第二MBSFN配置信息，所述第二MBSFN配置信息用于确定所述MBSFN子帧在第二范围内的配置状态，所述第二范围为所述第一范围偏移所述第一偏移量后的范围。
  21. 根据权利要求20所述的装置，其特征在于，
    所述MBSFN子帧包括第二子帧，所述第二子帧偏移所述第一偏移量后、位于所述第一范围之外，所述第二MBSFN配置信息包括第二指示信息，所述第二指示信息用于指示在所述第二子帧对应的时域资源上进行速率匹配。
  22. 根据权利要求18～20中任一项所述的装置，其特征在于，所述MBSFN子帧包括第二子帧，所述第二子帧偏移所述第一偏移量后、位于所述第一范围之外，所述通信单元，进一步用于：
    向所述第一终端设备发送第二指示信息，所述第二指示信息用于指示在所述第二子帧对应的时域资源上进行速率匹配。
  23. 根据权利要求18～22中任一项所述的装置，其特征在于，所述第一偏移量为大于0且小于10的整数。
  24. 根据权利要求18～23中任一项所述的装置，其特征在于，所述第一信息包括同步信号和物理广播信道块、系统信息块、其他系统信息或寻呼消息中的至少一项。
  25. 一种通信装置，其特征在于，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1-5中任一项所述的方法。
  26. 一种通信装置，其特征在于，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求6-12中任一项所述的方法。
  27. 一种通信系统，其特征在于，包括第一网络设备，以及第二网络设备，所述第一网络设备用于实现权利要求1-5中任一项所述的方法，所述第二网络设备用于实现权利要求6-12中任一项所述的方法。
  28. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序，当所述计算机程序在计算机上运行时，使得计算机执行权利要求1-12中任一项所述的方法。
  29. 一种计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得所述计算机执行权利要求1-12中任一项所述的方法。
  30. 一种芯片，其特征在于，所述芯片与存储器耦合，所述芯片读取存储器中存储的计算机程序，执行权利要求1-12中任一项所述的方法。
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